Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Henrique de Moraes Holschuh | 643f12d | 2007-03-29 01:58:43 -0300 | [diff] [blame] | 2 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
Henrique de Moraes Holschuh | 1c762ca | 2009-04-04 04:25:42 +0000 | [diff] [blame] | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
Henrique de Moraes Holschuh | a62bc91 | 2007-03-23 17:33:58 -0300 | [diff] [blame] | 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 21 | * 02110-1301, USA. |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 22 | */ |
| 23 | |
Henrique de Moraes Holschuh | b57f7e7 | 2009-04-14 02:44:14 +0000 | [diff] [blame] | 24 | #define TPACPI_VERSION "0.23" |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 25 | #define TPACPI_SYSFS_VERSION 0x020300 |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 26 | |
| 27 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | * Changelog: |
Henrique de Moraes Holschuh | 4b45cc0 | 2008-01-08 13:02:46 -0200 | [diff] [blame] | 29 | * 2007-10-20 changelog trimmed down |
| 30 | * |
Henrique de Moraes Holschuh | 643f12d | 2007-03-29 01:58:43 -0300 | [diff] [blame] | 31 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
| 32 | * drivers/misc. |
Henrique de Moraes Holschuh | f9ff43a | 2006-11-25 16:37:38 -0200 | [diff] [blame] | 33 | * |
| 34 | * 2006-11-22 0.13 new maintainer |
| 35 | * changelog now lives in git commit history, and will |
| 36 | * not be updated further in-file. |
Henrique de Moraes Holschuh | 837ca6d | 2007-03-23 17:33:54 -0300 | [diff] [blame] | 37 | * |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 38 | * 2005-03-17 0.11 support for 600e, 770x |
| 39 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> |
Henrique de Moraes Holschuh | 4b45cc0 | 2008-01-08 13:02:46 -0200 | [diff] [blame] | 40 | * |
| 41 | * 2005-01-16 0.9 use MODULE_VERSION |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 42 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
| 43 | * fix parameter passing on module loading |
| 44 | * thanks to Rusty Russell <rusty@rustcorp.com.au> |
| 45 | * thanks to Jim Radford <radford@blackbean.org> |
| 46 | * 2004-11-08 0.8 fix init error case, don't return from a macro |
| 47 | * thanks to Chris Wright <chrisw@osdl.org> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | */ |
| 49 | |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 50 | #include <linux/kernel.h> |
| 51 | #include <linux/module.h> |
| 52 | #include <linux/init.h> |
| 53 | #include <linux/types.h> |
| 54 | #include <linux/string.h> |
| 55 | #include <linux/list.h> |
| 56 | #include <linux/mutex.h> |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 57 | #include <linux/sched.h> |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 58 | #include <linux/kthread.h> |
| 59 | #include <linux/freezer.h> |
| 60 | #include <linux/delay.h> |
| 61 | |
| 62 | #include <linux/nvram.h> |
| 63 | #include <linux/proc_fs.h> |
| 64 | #include <linux/sysfs.h> |
| 65 | #include <linux/backlight.h> |
| 66 | #include <linux/fb.h> |
| 67 | #include <linux/platform_device.h> |
| 68 | #include <linux/hwmon.h> |
| 69 | #include <linux/hwmon-sysfs.h> |
| 70 | #include <linux/input.h> |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 71 | #include <linux/leds.h> |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 72 | #include <linux/rfkill.h> |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 73 | #include <asm/uaccess.h> |
| 74 | |
| 75 | #include <linux/dmi.h> |
| 76 | #include <linux/jiffies.h> |
| 77 | #include <linux/workqueue.h> |
| 78 | |
| 79 | #include <acpi/acpi_drivers.h> |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 80 | |
| 81 | #include <linux/pci_ids.h> |
| 82 | |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 83 | |
| 84 | /* ThinkPad CMOS commands */ |
| 85 | #define TP_CMOS_VOLUME_DOWN 0 |
| 86 | #define TP_CMOS_VOLUME_UP 1 |
| 87 | #define TP_CMOS_VOLUME_MUTE 2 |
| 88 | #define TP_CMOS_BRIGHTNESS_UP 4 |
| 89 | #define TP_CMOS_BRIGHTNESS_DOWN 5 |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 90 | #define TP_CMOS_THINKLIGHT_ON 12 |
| 91 | #define TP_CMOS_THINKLIGHT_OFF 13 |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 92 | |
| 93 | /* NVRAM Addresses */ |
| 94 | enum tp_nvram_addr { |
| 95 | TP_NVRAM_ADDR_HK2 = 0x57, |
| 96 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, |
| 97 | TP_NVRAM_ADDR_VIDEO = 0x59, |
| 98 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, |
| 99 | TP_NVRAM_ADDR_MIXER = 0x60, |
| 100 | }; |
| 101 | |
| 102 | /* NVRAM bit masks */ |
| 103 | enum { |
| 104 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, |
| 105 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, |
| 106 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, |
| 107 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, |
| 108 | TP_NVRAM_MASK_THINKLIGHT = 0x10, |
| 109 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, |
| 110 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, |
| 111 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, |
| 112 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, |
| 113 | TP_NVRAM_MASK_MUTE = 0x40, |
| 114 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, |
| 115 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, |
| 116 | TP_NVRAM_POS_LEVEL_VOLUME = 0, |
| 117 | }; |
| 118 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 119 | /* ACPI HIDs */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 120 | #define TPACPI_ACPI_HKEY_HID "IBM0068" |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 121 | |
| 122 | /* Input IDs */ |
| 123 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ |
| 124 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 |
| 125 | |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 126 | /* ACPI \WGSV commands */ |
| 127 | enum { |
| 128 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ |
| 129 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ |
| 130 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ |
| 131 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ |
| 132 | }; |
| 133 | |
| 134 | /* TP_ACPI_WGSV_GET_STATE bits */ |
| 135 | enum { |
| 136 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ |
| 137 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ |
| 138 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ |
| 139 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ |
| 140 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ |
| 141 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ |
| 142 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ |
| 143 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ |
| 144 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ |
| 145 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ |
| 146 | }; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 147 | |
| 148 | /**************************************************************************** |
| 149 | * Main driver |
| 150 | */ |
| 151 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 152 | #define TPACPI_NAME "thinkpad" |
| 153 | #define TPACPI_DESC "ThinkPad ACPI Extras" |
| 154 | #define TPACPI_FILE TPACPI_NAME "_acpi" |
| 155 | #define TPACPI_URL "http://ibm-acpi.sf.net/" |
| 156 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 157 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 158 | #define TPACPI_PROC_DIR "ibm" |
| 159 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" |
| 160 | #define TPACPI_DRVR_NAME TPACPI_FILE |
Henrique de Moraes Holschuh | 95e57ab | 2008-04-26 01:02:22 -0300 | [diff] [blame] | 161 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 162 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 163 | |
Henrique de Moraes Holschuh | 95e57ab | 2008-04-26 01:02:22 -0300 | [diff] [blame] | 164 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 165 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
Henrique de Moraes Holschuh | 95e57ab | 2008-04-26 01:02:22 -0300 | [diff] [blame] | 166 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 167 | #define TPACPI_MAX_ACPI_ARGS 3 |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 168 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 169 | /* rfkill switches */ |
| 170 | enum { |
| 171 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, |
| 172 | TPACPI_RFK_WWAN_SW_ID, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 173 | TPACPI_RFK_UWB_SW_ID, |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 174 | }; |
| 175 | |
Henrique de Moraes Holschuh | 7ff8d62 | 2009-04-04 04:25:46 +0000 | [diff] [blame] | 176 | /* printk headers */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 177 | #define TPACPI_LOG TPACPI_FILE ": " |
Henrique de Moraes Holschuh | 7ff8d62 | 2009-04-04 04:25:46 +0000 | [diff] [blame] | 178 | #define TPACPI_EMERG KERN_EMERG TPACPI_LOG |
| 179 | #define TPACPI_ALERT KERN_ALERT TPACPI_LOG |
| 180 | #define TPACPI_CRIT KERN_CRIT TPACPI_LOG |
| 181 | #define TPACPI_ERR KERN_ERR TPACPI_LOG |
| 182 | #define TPACPI_WARN KERN_WARNING TPACPI_LOG |
| 183 | #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG |
| 184 | #define TPACPI_INFO KERN_INFO TPACPI_LOG |
| 185 | #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 186 | |
Henrique de Moraes Holschuh | 7ff8d62 | 2009-04-04 04:25:46 +0000 | [diff] [blame] | 187 | /* Debugging printk groups */ |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 188 | #define TPACPI_DBG_ALL 0xffff |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 189 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 190 | #define TPACPI_DBG_INIT 0x0001 |
| 191 | #define TPACPI_DBG_EXIT 0x0002 |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 192 | #define TPACPI_DBG_RFKILL 0x0004 |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 193 | #define TPACPI_DBG_HKEY 0x0008 |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 194 | #define TPACPI_DBG_FAN 0x0010 |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 195 | #define TPACPI_DBG_BRGHT 0x0020 |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 196 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 197 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
| 198 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") |
| 199 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 200 | |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 201 | |
| 202 | /**************************************************************************** |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 203 | * Driver-wide structs and misc. variables |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 204 | */ |
| 205 | |
| 206 | struct ibm_struct; |
| 207 | |
| 208 | struct tp_acpi_drv_struct { |
| 209 | const struct acpi_device_id *hid; |
| 210 | struct acpi_driver *driver; |
| 211 | |
| 212 | void (*notify) (struct ibm_struct *, u32); |
| 213 | acpi_handle *handle; |
| 214 | u32 type; |
| 215 | struct acpi_device *device; |
| 216 | }; |
| 217 | |
| 218 | struct ibm_struct { |
| 219 | char *name; |
| 220 | |
| 221 | int (*read) (char *); |
| 222 | int (*write) (char *); |
| 223 | void (*exit) (void); |
| 224 | void (*resume) (void); |
Henrique de Moraes Holschuh | 083f176 | 2008-01-08 13:02:50 -0200 | [diff] [blame] | 225 | void (*suspend) (pm_message_t state); |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 226 | void (*shutdown) (void); |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 227 | |
| 228 | struct list_head all_drivers; |
| 229 | |
| 230 | struct tp_acpi_drv_struct *acpi; |
| 231 | |
| 232 | struct { |
| 233 | u8 acpi_driver_registered:1; |
| 234 | u8 acpi_notify_installed:1; |
| 235 | u8 proc_created:1; |
| 236 | u8 init_called:1; |
| 237 | u8 experimental:1; |
| 238 | } flags; |
| 239 | }; |
| 240 | |
| 241 | struct ibm_init_struct { |
| 242 | char param[32]; |
| 243 | |
| 244 | int (*init) (struct ibm_init_struct *); |
| 245 | struct ibm_struct *data; |
| 246 | }; |
| 247 | |
| 248 | static struct { |
| 249 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
| 250 | u32 bay_status:1; |
| 251 | u32 bay_eject:1; |
| 252 | u32 bay_status2:1; |
| 253 | u32 bay_eject2:1; |
| 254 | #endif |
| 255 | u32 bluetooth:1; |
| 256 | u32 hotkey:1; |
| 257 | u32 hotkey_mask:1; |
| 258 | u32 hotkey_wlsw:1; |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 259 | u32 hotkey_tablet:1; |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 260 | u32 light:1; |
| 261 | u32 light_status:1; |
| 262 | u32 bright_16levels:1; |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 263 | u32 bright_acpimode:1; |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 264 | u32 wan:1; |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 265 | u32 uwb:1; |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 266 | u32 fan_ctrl_status_undef:1; |
| 267 | u32 input_device_registered:1; |
| 268 | u32 platform_drv_registered:1; |
| 269 | u32 platform_drv_attrs_registered:1; |
| 270 | u32 sensors_pdrv_registered:1; |
| 271 | u32 sensors_pdrv_attrs_registered:1; |
| 272 | u32 sensors_pdev_attrs_registered:1; |
| 273 | u32 hotkey_poll_active:1; |
| 274 | } tp_features; |
| 275 | |
Henrique de Moraes Holschuh | 9288902 | 2008-04-26 01:02:18 -0300 | [diff] [blame] | 276 | static struct { |
| 277 | u16 hotkey_mask_ff:1; |
| 278 | } tp_warned; |
| 279 | |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 280 | struct thinkpad_id_data { |
| 281 | unsigned int vendor; /* ThinkPad vendor: |
| 282 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ |
| 283 | |
| 284 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ |
| 285 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ |
| 286 | |
| 287 | u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ |
| 288 | u16 ec_model; |
| 289 | |
Henrique de Moraes Holschuh | 8c74adb | 2008-04-26 01:02:19 -0300 | [diff] [blame] | 290 | char *model_str; /* ThinkPad T43 */ |
| 291 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 292 | }; |
Henrique de Moraes Holschuh | 0c78039 | 2008-01-08 13:02:43 -0200 | [diff] [blame] | 293 | static struct thinkpad_id_data thinkpad_id; |
| 294 | |
Henrique de Moraes Holschuh | 8fef502 | 2007-09-23 11:39:02 -0300 | [diff] [blame] | 295 | static enum { |
| 296 | TPACPI_LIFE_INIT = 0, |
| 297 | TPACPI_LIFE_RUNNING, |
| 298 | TPACPI_LIFE_EXITING, |
| 299 | } tpacpi_lifecycle; |
| 300 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 301 | static int experimental; |
| 302 | static u32 dbg_level; |
| 303 | |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 304 | static struct workqueue_struct *tpacpi_wq; |
| 305 | |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 306 | enum led_status_t { |
| 307 | TPACPI_LED_OFF = 0, |
| 308 | TPACPI_LED_ON, |
| 309 | TPACPI_LED_BLINK, |
| 310 | }; |
| 311 | |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 312 | /* Special LED class that can defer work */ |
| 313 | struct tpacpi_led_classdev { |
| 314 | struct led_classdev led_classdev; |
| 315 | struct work_struct work; |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 316 | enum led_status_t new_state; |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 317 | unsigned int led; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 318 | }; |
| 319 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 320 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 321 | static int dbg_wlswemul; |
| 322 | static int tpacpi_wlsw_emulstate; |
| 323 | static int dbg_bluetoothemul; |
| 324 | static int tpacpi_bluetooth_emulstate; |
| 325 | static int dbg_wwanemul; |
| 326 | static int tpacpi_wwan_emulstate; |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 327 | static int dbg_uwbemul; |
| 328 | static int tpacpi_uwb_emulstate; |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 329 | #endif |
| 330 | |
| 331 | |
Henrique de Moraes Holschuh | 3dcc2c3 | 2009-04-04 04:25:45 +0000 | [diff] [blame] | 332 | /************************************************************************* |
| 333 | * Debugging helpers |
| 334 | */ |
| 335 | |
| 336 | #define dbg_printk(a_dbg_level, format, arg...) \ |
| 337 | do { if (dbg_level & (a_dbg_level)) \ |
| 338 | printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ |
| 339 | } while (0) |
| 340 | |
| 341 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
| 342 | #define vdbg_printk dbg_printk |
| 343 | static const char *str_supported(int is_supported); |
| 344 | #else |
| 345 | #define vdbg_printk(a_dbg_level, format, arg...) \ |
| 346 | do { } while (0) |
| 347 | #endif |
| 348 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 349 | static void tpacpi_log_usertask(const char * const what) |
| 350 | { |
| 351 | printk(TPACPI_DEBUG "%s: access by process with PID %d\n", |
| 352 | what, task_tgid_vnr(current)); |
| 353 | } |
| 354 | |
| 355 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
| 356 | do { \ |
| 357 | if (unlikely( \ |
| 358 | (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ |
| 359 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ |
| 360 | printk(TPACPI_DEBUG "%s: PID %d: " format, \ |
| 361 | what, task_tgid_vnr(current), ## arg); \ |
| 362 | } \ |
| 363 | } while (0) |
Henrique de Moraes Holschuh | 3dcc2c3 | 2009-04-04 04:25:45 +0000 | [diff] [blame] | 364 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 365 | /**************************************************************************** |
| 366 | **************************************************************************** |
| 367 | * |
| 368 | * ACPI Helpers and device model |
| 369 | * |
| 370 | **************************************************************************** |
| 371 | ****************************************************************************/ |
| 372 | |
| 373 | /************************************************************************* |
| 374 | * ACPI basic handles |
| 375 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
Henrique de Moraes Holschuh | 94954cc | 2007-07-18 23:45:27 -0300 | [diff] [blame] | 377 | static acpi_handle root_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 379 | #define TPACPI_HANDLE(object, parent, paths...) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | static acpi_handle object##_handle; \ |
| 381 | static acpi_handle *object##_parent = &parent##_handle; \ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 382 | static char *object##_path; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | static char *object##_paths[] = { paths } |
| 384 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 385 | TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 386 | "\\_SB.PCI.ISA.EC", /* 570 */ |
| 387 | "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ |
| 388 | "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ |
| 389 | "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ |
| 390 | "\\_SB.PCI0.ICH3.EC0", /* R31 */ |
| 391 | "\\_SB.PCI0.LPC.EC", /* all others */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 392 | ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 394 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
| 395 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 397 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
| 398 | /* T4x, X31, X40 */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 399 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
| 400 | "\\CMS", /* R40, R40e */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 401 | ); /* all others */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 402 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 403 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 404 | "^HKEY", /* R30, R31 */ |
| 405 | "HKEY", /* all others */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 406 | ); /* 570 */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 407 | |
Henrique de Moraes Holschuh | d7c1d17 | 2008-02-16 02:17:54 -0200 | [diff] [blame] | 408 | TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ |
| 409 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ |
| 410 | "\\_SB.PCI0.VID0", /* 770e */ |
| 411 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ |
| 412 | "\\_SB.PCI0.AGP.VID", /* all others */ |
| 413 | ); /* R30, R31 */ |
| 414 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 415 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 416 | /************************************************************************* |
| 417 | * ACPI helpers |
Henrique de Moraes Holschuh | a8b7a66 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 418 | */ |
| 419 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | static int acpi_evalf(acpi_handle handle, |
| 421 | void *res, char *method, char *fmt, ...) |
| 422 | { |
| 423 | char *fmt0 = fmt; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 424 | struct acpi_object_list params; |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 425 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 426 | struct acpi_buffer result, *resultp; |
| 427 | union acpi_object out_obj; |
| 428 | acpi_status status; |
| 429 | va_list ap; |
| 430 | char res_type; |
| 431 | int success; |
| 432 | int quiet; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
| 434 | if (!*fmt) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 435 | printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | if (*fmt == 'q') { |
| 440 | quiet = 1; |
| 441 | fmt++; |
| 442 | } else |
| 443 | quiet = 0; |
| 444 | |
| 445 | res_type = *(fmt++); |
| 446 | |
| 447 | params.count = 0; |
| 448 | params.pointer = &in_objs[0]; |
| 449 | |
| 450 | va_start(ap, fmt); |
| 451 | while (*fmt) { |
| 452 | char c = *(fmt++); |
| 453 | switch (c) { |
| 454 | case 'd': /* int */ |
| 455 | in_objs[params.count].integer.value = va_arg(ap, int); |
| 456 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; |
| 457 | break; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 458 | /* add more types as needed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | default: |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 460 | printk(TPACPI_ERR "acpi_evalf() called " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | "with invalid format character '%c'\n", c); |
| 462 | return 0; |
| 463 | } |
| 464 | } |
| 465 | va_end(ap); |
| 466 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 467 | if (res_type != 'v') { |
| 468 | result.length = sizeof(out_obj); |
| 469 | result.pointer = &out_obj; |
| 470 | resultp = &result; |
| 471 | } else |
| 472 | resultp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 474 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | |
| 476 | switch (res_type) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 477 | case 'd': /* int */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | if (res) |
| 479 | *(int *)res = out_obj.integer.value; |
| 480 | success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; |
| 481 | break; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 482 | case 'v': /* void */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | success = status == AE_OK; |
| 484 | break; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 485 | /* add more types as needed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | default: |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 487 | printk(TPACPI_ERR "acpi_evalf() called " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | "with invalid format character '%c'\n", res_type); |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | if (!success && !quiet) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 493 | printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | method, fmt0, status); |
| 495 | |
| 496 | return success; |
| 497 | } |
| 498 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 499 | static int acpi_ec_read(int i, u8 *p) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 500 | { |
| 501 | int v; |
| 502 | |
| 503 | if (ecrd_handle) { |
| 504 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) |
| 505 | return 0; |
| 506 | *p = v; |
| 507 | } else { |
| 508 | if (ec_read(i, p) < 0) |
| 509 | return 0; |
| 510 | } |
| 511 | |
| 512 | return 1; |
| 513 | } |
| 514 | |
| 515 | static int acpi_ec_write(int i, u8 v) |
| 516 | { |
| 517 | if (ecwr_handle) { |
| 518 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) |
| 519 | return 0; |
| 520 | } else { |
| 521 | if (ec_write(i, v) < 0) |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | return 1; |
| 526 | } |
| 527 | |
Henrique de Moraes Holschuh | 013c40e | 2008-01-08 13:02:54 -0200 | [diff] [blame] | 528 | #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 529 | static int _sta(acpi_handle handle) |
| 530 | { |
| 531 | int status; |
| 532 | |
| 533 | if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) |
| 534 | status = 0; |
| 535 | |
| 536 | return status; |
| 537 | } |
Henrique de Moraes Holschuh | 013c40e | 2008-01-08 13:02:54 -0200 | [diff] [blame] | 538 | #endif |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 539 | |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 540 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
| 541 | { |
| 542 | if (!cmos_handle) |
| 543 | return -ENXIO; |
| 544 | |
| 545 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) |
| 546 | return -EIO; |
| 547 | |
| 548 | return 0; |
| 549 | } |
| 550 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 551 | /************************************************************************* |
| 552 | * ACPI device model |
| 553 | */ |
| 554 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 555 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
| 556 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 557 | object##_paths, ARRAY_SIZE(object##_paths), &object##_path) |
| 558 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 559 | static void drv_acpi_handle_init(char *name, |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 560 | acpi_handle *handle, acpi_handle parent, |
| 561 | char **paths, int num_paths, char **path) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 562 | { |
| 563 | int i; |
| 564 | acpi_status status; |
| 565 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 566 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
| 567 | name); |
| 568 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 569 | for (i = 0; i < num_paths; i++) { |
| 570 | status = acpi_get_handle(parent, paths[i], handle); |
| 571 | if (ACPI_SUCCESS(status)) { |
| 572 | *path = paths[i]; |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 573 | dbg_printk(TPACPI_DBG_INIT, |
| 574 | "Found ACPI handle %s for %s\n", |
| 575 | *path, name); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 576 | return; |
| 577 | } |
| 578 | } |
| 579 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 580 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
| 581 | name); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 582 | *handle = NULL; |
| 583 | } |
| 584 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 585 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 586 | { |
| 587 | struct ibm_struct *ibm = data; |
| 588 | |
Henrique de Moraes Holschuh | 8fef502 | 2007-09-23 11:39:02 -0300 | [diff] [blame] | 589 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
| 590 | return; |
| 591 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 592 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 593 | return; |
| 594 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 595 | ibm->acpi->notify(ibm, event); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 596 | } |
| 597 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 598 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 599 | { |
| 600 | acpi_status status; |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 601 | int rc; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 602 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 603 | BUG_ON(!ibm->acpi); |
| 604 | |
| 605 | if (!*ibm->acpi->handle) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 606 | return 0; |
| 607 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 608 | vdbg_printk(TPACPI_DBG_INIT, |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 609 | "setting up ACPI notify for %s\n", ibm->name); |
| 610 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 611 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
| 612 | if (rc < 0) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 613 | printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 614 | ibm->name, rc); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 615 | return -ENODEV; |
| 616 | } |
| 617 | |
Pavel Machek | db89b4f | 2008-09-22 14:37:34 -0700 | [diff] [blame] | 618 | ibm->acpi->device->driver_data = ibm; |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 619 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 620 | TPACPI_ACPI_EVENT_PREFIX, |
Henrique de Moraes Holschuh | 643f12d | 2007-03-29 01:58:43 -0300 | [diff] [blame] | 621 | ibm->name); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 622 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 623 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
| 624 | ibm->acpi->type, dispatch_acpi_notify, ibm); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 625 | if (ACPI_FAILURE(status)) { |
| 626 | if (status == AE_ALREADY_EXISTS) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 627 | printk(TPACPI_NOTICE |
| 628 | "another device driver is already " |
| 629 | "handling %s events\n", ibm->name); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 630 | } else { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 631 | printk(TPACPI_ERR |
| 632 | "acpi_install_notify_handler(%s) failed: %d\n", |
| 633 | ibm->name, status); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 634 | } |
| 635 | return -ENODEV; |
| 636 | } |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 637 | ibm->flags.acpi_notify_installed = 1; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 638 | return 0; |
| 639 | } |
| 640 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 641 | static int __init tpacpi_device_add(struct acpi_device *device) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 642 | { |
| 643 | return 0; |
| 644 | } |
| 645 | |
Henrique de Moraes Holschuh | 6700121 | 2007-04-21 11:08:25 -0300 | [diff] [blame] | 646 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 647 | { |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 648 | int rc; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 649 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 650 | dbg_printk(TPACPI_DBG_INIT, |
| 651 | "registering %s as an ACPI driver\n", ibm->name); |
| 652 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 653 | BUG_ON(!ibm->acpi); |
| 654 | |
| 655 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); |
| 656 | if (!ibm->acpi->driver) { |
Mariusz Kozlowski | 4f778b9 | 2008-10-18 14:23:53 -0300 | [diff] [blame] | 657 | printk(TPACPI_ERR |
| 658 | "failed to allocate memory for ibm->acpi->driver\n"); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 659 | return -ENOMEM; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 660 | } |
| 661 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 662 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 663 | ibm->acpi->driver->ids = ibm->acpi->hid; |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 664 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 665 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 666 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 667 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
| 668 | if (rc < 0) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 669 | printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 670 | ibm->name, rc); |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 671 | kfree(ibm->acpi->driver); |
| 672 | ibm->acpi->driver = NULL; |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 673 | } else if (!rc) |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 674 | ibm->flags.acpi_driver_registered = 1; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 675 | |
Henrique de Moraes Holschuh | 5ae930e | 2007-04-27 22:00:14 -0300 | [diff] [blame] | 676 | return rc; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 677 | } |
| 678 | |
| 679 | |
| 680 | /**************************************************************************** |
| 681 | **************************************************************************** |
| 682 | * |
| 683 | * Procfs Helpers |
| 684 | * |
| 685 | **************************************************************************** |
| 686 | ****************************************************************************/ |
| 687 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 688 | static int dispatch_procfs_read(char *page, char **start, off_t off, |
| 689 | int count, int *eof, void *data) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 690 | { |
| 691 | struct ibm_struct *ibm = data; |
| 692 | int len; |
| 693 | |
| 694 | if (!ibm || !ibm->read) |
| 695 | return -EINVAL; |
| 696 | |
| 697 | len = ibm->read(page); |
| 698 | if (len < 0) |
| 699 | return len; |
| 700 | |
| 701 | if (len <= off + count) |
| 702 | *eof = 1; |
| 703 | *start = page + off; |
| 704 | len -= off; |
| 705 | if (len > count) |
| 706 | len = count; |
| 707 | if (len < 0) |
| 708 | len = 0; |
| 709 | |
| 710 | return len; |
| 711 | } |
| 712 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 713 | static int dispatch_procfs_write(struct file *file, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 714 | const char __user *userbuf, |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 715 | unsigned long count, void *data) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 716 | { |
| 717 | struct ibm_struct *ibm = data; |
| 718 | char *kernbuf; |
| 719 | int ret; |
| 720 | |
| 721 | if (!ibm || !ibm->write) |
| 722 | return -EINVAL; |
| 723 | |
| 724 | kernbuf = kmalloc(count + 2, GFP_KERNEL); |
| 725 | if (!kernbuf) |
| 726 | return -ENOMEM; |
| 727 | |
| 728 | if (copy_from_user(kernbuf, userbuf, count)) { |
| 729 | kfree(kernbuf); |
| 730 | return -EFAULT; |
| 731 | } |
| 732 | |
| 733 | kernbuf[count] = 0; |
| 734 | strcat(kernbuf, ","); |
| 735 | ret = ibm->write(kernbuf); |
| 736 | if (ret == 0) |
| 737 | ret = count; |
| 738 | |
| 739 | kfree(kernbuf); |
| 740 | |
| 741 | return ret; |
| 742 | } |
| 743 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | static char *next_cmd(char **cmds) |
| 745 | { |
| 746 | char *start = *cmds; |
| 747 | char *end; |
| 748 | |
| 749 | while ((end = strchr(start, ',')) && end == start) |
| 750 | start = end + 1; |
| 751 | |
| 752 | if (!end) |
| 753 | return NULL; |
| 754 | |
| 755 | *end = 0; |
| 756 | *cmds = end + 1; |
| 757 | return start; |
| 758 | } |
| 759 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 760 | |
| 761 | /**************************************************************************** |
| 762 | **************************************************************************** |
| 763 | * |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 764 | * Device model: input, hwmon and platform |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 765 | * |
| 766 | **************************************************************************** |
| 767 | ****************************************************************************/ |
| 768 | |
Henrique de Moraes Holschuh | 94954cc | 2007-07-18 23:45:27 -0300 | [diff] [blame] | 769 | static struct platform_device *tpacpi_pdev; |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 770 | static struct platform_device *tpacpi_sensors_pdev; |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 771 | static struct device *tpacpi_hwmon; |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 772 | static struct input_dev *tpacpi_inputdev; |
Henrique de Moraes Holschuh | 8523ed6 | 2007-09-23 11:39:01 -0300 | [diff] [blame] | 773 | static struct mutex tpacpi_inputdev_send_mutex; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 774 | static LIST_HEAD(tpacpi_all_drivers); |
Henrique de Moraes Holschuh | e295e85 | 2007-07-18 23:45:37 -0300 | [diff] [blame] | 775 | |
Henrique de Moraes Holschuh | 083f176 | 2008-01-08 13:02:50 -0200 | [diff] [blame] | 776 | static int tpacpi_suspend_handler(struct platform_device *pdev, |
| 777 | pm_message_t state) |
| 778 | { |
| 779 | struct ibm_struct *ibm, *itmp; |
| 780 | |
| 781 | list_for_each_entry_safe(ibm, itmp, |
| 782 | &tpacpi_all_drivers, |
| 783 | all_drivers) { |
| 784 | if (ibm->suspend) |
| 785 | (ibm->suspend)(state); |
| 786 | } |
| 787 | |
| 788 | return 0; |
| 789 | } |
| 790 | |
Henrique de Moraes Holschuh | e295e85 | 2007-07-18 23:45:37 -0300 | [diff] [blame] | 791 | static int tpacpi_resume_handler(struct platform_device *pdev) |
| 792 | { |
| 793 | struct ibm_struct *ibm, *itmp; |
| 794 | |
| 795 | list_for_each_entry_safe(ibm, itmp, |
| 796 | &tpacpi_all_drivers, |
| 797 | all_drivers) { |
| 798 | if (ibm->resume) |
| 799 | (ibm->resume)(); |
| 800 | } |
| 801 | |
| 802 | return 0; |
| 803 | } |
| 804 | |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 805 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
| 806 | { |
| 807 | struct ibm_struct *ibm, *itmp; |
| 808 | |
| 809 | list_for_each_entry_safe(ibm, itmp, |
| 810 | &tpacpi_all_drivers, |
| 811 | all_drivers) { |
| 812 | if (ibm->shutdown) |
| 813 | (ibm->shutdown)(); |
| 814 | } |
| 815 | } |
| 816 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 817 | static struct platform_driver tpacpi_pdriver = { |
| 818 | .driver = { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 819 | .name = TPACPI_DRVR_NAME, |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 820 | .owner = THIS_MODULE, |
| 821 | }, |
Henrique de Moraes Holschuh | 083f176 | 2008-01-08 13:02:50 -0200 | [diff] [blame] | 822 | .suspend = tpacpi_suspend_handler, |
Henrique de Moraes Holschuh | e295e85 | 2007-07-18 23:45:37 -0300 | [diff] [blame] | 823 | .resume = tpacpi_resume_handler, |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 824 | .shutdown = tpacpi_shutdown_handler, |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 825 | }; |
| 826 | |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 827 | static struct platform_driver tpacpi_hwmon_pdriver = { |
| 828 | .driver = { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 829 | .name = TPACPI_HWMON_DRVR_NAME, |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 830 | .owner = THIS_MODULE, |
| 831 | }, |
| 832 | }; |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 833 | |
Henrique de Moraes Holschuh | 176750d | 2007-04-24 11:48:13 -0300 | [diff] [blame] | 834 | /************************************************************************* |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 835 | * sysfs support helpers |
| 836 | */ |
| 837 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 838 | struct attribute_set { |
| 839 | unsigned int members, max_members; |
| 840 | struct attribute_group group; |
| 841 | }; |
| 842 | |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 843 | struct attribute_set_obj { |
| 844 | struct attribute_set s; |
| 845 | struct attribute *a; |
| 846 | } __attribute__((packed)); |
| 847 | |
| 848 | static struct attribute_set *create_attr_set(unsigned int max_members, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 849 | const char *name) |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 850 | { |
| 851 | struct attribute_set_obj *sobj; |
| 852 | |
| 853 | if (max_members == 0) |
| 854 | return NULL; |
| 855 | |
| 856 | /* Allocates space for implicit NULL at the end too */ |
| 857 | sobj = kzalloc(sizeof(struct attribute_set_obj) + |
| 858 | max_members * sizeof(struct attribute *), |
| 859 | GFP_KERNEL); |
| 860 | if (!sobj) |
| 861 | return NULL; |
| 862 | sobj->s.max_members = max_members; |
| 863 | sobj->s.group.attrs = &sobj->a; |
| 864 | sobj->s.group.name = name; |
| 865 | |
| 866 | return &sobj->s; |
| 867 | } |
| 868 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 869 | #define destroy_attr_set(_set) \ |
| 870 | kfree(_set); |
| 871 | |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 872 | /* not multi-threaded safe, use it in a single thread per set */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 873 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 874 | { |
| 875 | if (!s || !attr) |
| 876 | return -EINVAL; |
| 877 | |
| 878 | if (s->members >= s->max_members) |
| 879 | return -ENOMEM; |
| 880 | |
| 881 | s->group.attrs[s->members] = attr; |
| 882 | s->members++; |
| 883 | |
| 884 | return 0; |
| 885 | } |
| 886 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 887 | static int add_many_to_attr_set(struct attribute_set *s, |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 888 | struct attribute **attr, |
| 889 | unsigned int count) |
| 890 | { |
| 891 | int i, res; |
| 892 | |
| 893 | for (i = 0; i < count; i++) { |
| 894 | res = add_to_attr_set(s, attr[i]); |
| 895 | if (res) |
| 896 | return res; |
| 897 | } |
| 898 | |
| 899 | return 0; |
| 900 | } |
| 901 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 902 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 903 | { |
| 904 | sysfs_remove_group(kobj, &s->group); |
| 905 | destroy_attr_set(s); |
| 906 | } |
| 907 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 908 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
| 909 | sysfs_create_group(_kobj, &_attr_set->group) |
| 910 | |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 911 | static int parse_strtoul(const char *buf, |
| 912 | unsigned long max, unsigned long *value) |
| 913 | { |
| 914 | char *endp; |
| 915 | |
Henrique de Moraes Holschuh | 32afbf0 | 2007-10-08 10:12:56 -0300 | [diff] [blame] | 916 | while (*buf && isspace(*buf)) |
| 917 | buf++; |
Henrique de Moraes Holschuh | 7252374 | 2007-04-24 11:48:14 -0300 | [diff] [blame] | 918 | *value = simple_strtoul(buf, &endp, 0); |
| 919 | while (*endp && isspace(*endp)) |
| 920 | endp++; |
| 921 | if (*endp || *value > max) |
| 922 | return -EINVAL; |
| 923 | |
| 924 | return 0; |
| 925 | } |
| 926 | |
Henrique de Moraes Holschuh | d64c81c | 2008-10-18 14:23:55 -0300 | [diff] [blame] | 927 | static void tpacpi_disable_brightness_delay(void) |
| 928 | { |
| 929 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) |
| 930 | printk(TPACPI_NOTICE |
| 931 | "ACPI backlight control delay disabled\n"); |
| 932 | } |
| 933 | |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 934 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
| 935 | { |
| 936 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 937 | union acpi_object *obj; |
| 938 | int rc; |
| 939 | |
| 940 | if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { |
| 941 | obj = (union acpi_object *)buffer.pointer; |
| 942 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
| 943 | printk(TPACPI_ERR "Unknown _BCL data, " |
| 944 | "please report this to %s\n", TPACPI_MAIL); |
| 945 | rc = 0; |
| 946 | } else { |
| 947 | rc = obj->package.count; |
| 948 | } |
| 949 | } else { |
| 950 | return 0; |
| 951 | } |
| 952 | |
| 953 | kfree(buffer.pointer); |
| 954 | return rc; |
| 955 | } |
| 956 | |
| 957 | static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, |
| 958 | u32 lvl, void *context, void **rv) |
| 959 | { |
| 960 | char name[ACPI_PATH_SEGMENT_LENGTH]; |
| 961 | struct acpi_buffer buffer = { sizeof(name), &name }; |
| 962 | |
| 963 | if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && |
| 964 | !strncmp("_BCL", name, sizeof(name) - 1)) { |
| 965 | BUG_ON(!rv || !*rv); |
| 966 | **(int **)rv = tpacpi_query_bcl_levels(handle); |
| 967 | return AE_CTRL_TERMINATE; |
| 968 | } else { |
| 969 | return AE_OK; |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | /* |
| 974 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map |
| 975 | */ |
| 976 | static int __init tpacpi_check_std_acpi_brightness_support(void) |
| 977 | { |
| 978 | int status; |
| 979 | int bcl_levels = 0; |
| 980 | void *bcl_ptr = &bcl_levels; |
| 981 | |
| 982 | if (!vid_handle) { |
| 983 | TPACPI_ACPIHANDLE_INIT(vid); |
| 984 | } |
| 985 | if (!vid_handle) |
| 986 | return 0; |
| 987 | |
| 988 | /* |
| 989 | * Search for a _BCL method, and execute it. This is safe on all |
| 990 | * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista |
| 991 | * BIOS in ACPI backlight control mode. We do NOT have to care |
| 992 | * about calling the _BCL method in an enabled video device, any |
| 993 | * will do for our purposes. |
| 994 | */ |
| 995 | |
| 996 | status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, |
| 997 | tpacpi_acpi_walk_find_bcl, NULL, |
| 998 | &bcl_ptr); |
| 999 | |
| 1000 | if (ACPI_SUCCESS(status) && bcl_levels > 2) { |
| 1001 | tp_features.bright_acpimode = 1; |
| 1002 | return (bcl_levels - 2); |
| 1003 | } |
| 1004 | |
| 1005 | return 0; |
| 1006 | } |
| 1007 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 1008 | static int __init tpacpi_new_rfkill(const unsigned int id, |
| 1009 | struct rfkill **rfk, |
| 1010 | const enum rfkill_type rfktype, |
| 1011 | const char *name, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 1012 | const bool set_default, |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 1013 | int (*toggle_radio)(void *, enum rfkill_state), |
| 1014 | int (*get_state)(void *, enum rfkill_state *)) |
| 1015 | { |
| 1016 | int res; |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 1017 | enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED; |
| 1018 | |
| 1019 | res = get_state(NULL, &initial_state); |
| 1020 | if (res < 0) { |
| 1021 | printk(TPACPI_ERR |
| 1022 | "failed to read initial state for %s, error %d; " |
| 1023 | "will turn radio off\n", name, res); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 1024 | } else if (set_default) { |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 1025 | /* try to set the initial state as the default for the rfkill |
| 1026 | * type, since we ask the firmware to preserve it across S5 in |
| 1027 | * NVRAM */ |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 1028 | if (rfkill_set_default(rfktype, |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 1029 | (initial_state == RFKILL_STATE_UNBLOCKED) ? |
| 1030 | RFKILL_STATE_UNBLOCKED : |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 1031 | RFKILL_STATE_SOFT_BLOCKED) == -EPERM) |
| 1032 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 1033 | "Default state for %s cannot be changed\n", |
| 1034 | name); |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 1035 | } |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 1036 | |
| 1037 | *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); |
| 1038 | if (!*rfk) { |
| 1039 | printk(TPACPI_ERR |
| 1040 | "failed to allocate memory for rfkill class\n"); |
| 1041 | return -ENOMEM; |
| 1042 | } |
| 1043 | |
| 1044 | (*rfk)->name = name; |
| 1045 | (*rfk)->get_state = get_state; |
| 1046 | (*rfk)->toggle_radio = toggle_radio; |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 1047 | (*rfk)->state = initial_state; |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 1048 | |
| 1049 | res = rfkill_register(*rfk); |
| 1050 | if (res < 0) { |
| 1051 | printk(TPACPI_ERR |
| 1052 | "failed to register %s rfkill switch: %d\n", |
| 1053 | name, res); |
| 1054 | rfkill_free(*rfk); |
| 1055 | *rfk = NULL; |
| 1056 | return res; |
| 1057 | } |
| 1058 | |
| 1059 | return 0; |
| 1060 | } |
| 1061 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 1062 | static void printk_deprecated_attribute(const char * const what, |
| 1063 | const char * const details) |
| 1064 | { |
| 1065 | tpacpi_log_usertask("deprecated sysfs attribute"); |
| 1066 | printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " |
| 1067 | "will be removed. %s\n", |
| 1068 | what, details); |
| 1069 | } |
| 1070 | |
| 1071 | static void printk_deprecated_rfkill_attribute(const char * const what) |
| 1072 | { |
| 1073 | printk_deprecated_attribute(what, |
| 1074 | "Please switch to generic rfkill before year 2010"); |
| 1075 | } |
| 1076 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1077 | /************************************************************************* |
| 1078 | * thinkpad-acpi driver attributes |
| 1079 | */ |
| 1080 | |
| 1081 | /* interface_version --------------------------------------------------- */ |
| 1082 | static ssize_t tpacpi_driver_interface_version_show( |
| 1083 | struct device_driver *drv, |
| 1084 | char *buf) |
| 1085 | { |
| 1086 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
| 1087 | } |
| 1088 | |
| 1089 | static DRIVER_ATTR(interface_version, S_IRUGO, |
| 1090 | tpacpi_driver_interface_version_show, NULL); |
| 1091 | |
| 1092 | /* debug_level --------------------------------------------------------- */ |
| 1093 | static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, |
| 1094 | char *buf) |
| 1095 | { |
| 1096 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); |
| 1097 | } |
| 1098 | |
| 1099 | static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, |
| 1100 | const char *buf, size_t count) |
| 1101 | { |
| 1102 | unsigned long t; |
| 1103 | |
| 1104 | if (parse_strtoul(buf, 0xffff, &t)) |
| 1105 | return -EINVAL; |
| 1106 | |
| 1107 | dbg_level = t; |
| 1108 | |
| 1109 | return count; |
| 1110 | } |
| 1111 | |
| 1112 | static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, |
| 1113 | tpacpi_driver_debug_show, tpacpi_driver_debug_store); |
| 1114 | |
| 1115 | /* version ------------------------------------------------------------- */ |
| 1116 | static ssize_t tpacpi_driver_version_show(struct device_driver *drv, |
| 1117 | char *buf) |
| 1118 | { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1119 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
| 1120 | TPACPI_DESC, TPACPI_VERSION); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1121 | } |
| 1122 | |
| 1123 | static DRIVER_ATTR(version, S_IRUGO, |
| 1124 | tpacpi_driver_version_show, NULL); |
| 1125 | |
| 1126 | /* --------------------------------------------------------------------- */ |
| 1127 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1128 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 1129 | |
| 1130 | static void tpacpi_send_radiosw_update(void); |
| 1131 | |
| 1132 | /* wlsw_emulstate ------------------------------------------------------ */ |
| 1133 | static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv, |
| 1134 | char *buf) |
| 1135 | { |
| 1136 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); |
| 1137 | } |
| 1138 | |
| 1139 | static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv, |
| 1140 | const char *buf, size_t count) |
| 1141 | { |
| 1142 | unsigned long t; |
| 1143 | |
| 1144 | if (parse_strtoul(buf, 1, &t)) |
| 1145 | return -EINVAL; |
| 1146 | |
| 1147 | if (tpacpi_wlsw_emulstate != t) { |
| 1148 | tpacpi_wlsw_emulstate = !!t; |
| 1149 | tpacpi_send_radiosw_update(); |
| 1150 | } else |
| 1151 | tpacpi_wlsw_emulstate = !!t; |
| 1152 | |
| 1153 | return count; |
| 1154 | } |
| 1155 | |
| 1156 | static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO, |
| 1157 | tpacpi_driver_wlsw_emulstate_show, |
| 1158 | tpacpi_driver_wlsw_emulstate_store); |
| 1159 | |
| 1160 | /* bluetooth_emulstate ------------------------------------------------- */ |
| 1161 | static ssize_t tpacpi_driver_bluetooth_emulstate_show( |
| 1162 | struct device_driver *drv, |
| 1163 | char *buf) |
| 1164 | { |
| 1165 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); |
| 1166 | } |
| 1167 | |
| 1168 | static ssize_t tpacpi_driver_bluetooth_emulstate_store( |
| 1169 | struct device_driver *drv, |
| 1170 | const char *buf, size_t count) |
| 1171 | { |
| 1172 | unsigned long t; |
| 1173 | |
| 1174 | if (parse_strtoul(buf, 1, &t)) |
| 1175 | return -EINVAL; |
| 1176 | |
| 1177 | tpacpi_bluetooth_emulstate = !!t; |
| 1178 | |
| 1179 | return count; |
| 1180 | } |
| 1181 | |
| 1182 | static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO, |
| 1183 | tpacpi_driver_bluetooth_emulstate_show, |
| 1184 | tpacpi_driver_bluetooth_emulstate_store); |
| 1185 | |
| 1186 | /* wwan_emulstate ------------------------------------------------- */ |
| 1187 | static ssize_t tpacpi_driver_wwan_emulstate_show( |
| 1188 | struct device_driver *drv, |
| 1189 | char *buf) |
| 1190 | { |
| 1191 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); |
| 1192 | } |
| 1193 | |
| 1194 | static ssize_t tpacpi_driver_wwan_emulstate_store( |
| 1195 | struct device_driver *drv, |
| 1196 | const char *buf, size_t count) |
| 1197 | { |
| 1198 | unsigned long t; |
| 1199 | |
| 1200 | if (parse_strtoul(buf, 1, &t)) |
| 1201 | return -EINVAL; |
| 1202 | |
| 1203 | tpacpi_wwan_emulstate = !!t; |
| 1204 | |
| 1205 | return count; |
| 1206 | } |
| 1207 | |
| 1208 | static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO, |
| 1209 | tpacpi_driver_wwan_emulstate_show, |
| 1210 | tpacpi_driver_wwan_emulstate_store); |
| 1211 | |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 1212 | /* uwb_emulstate ------------------------------------------------- */ |
| 1213 | static ssize_t tpacpi_driver_uwb_emulstate_show( |
| 1214 | struct device_driver *drv, |
| 1215 | char *buf) |
| 1216 | { |
| 1217 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); |
| 1218 | } |
| 1219 | |
| 1220 | static ssize_t tpacpi_driver_uwb_emulstate_store( |
| 1221 | struct device_driver *drv, |
| 1222 | const char *buf, size_t count) |
| 1223 | { |
| 1224 | unsigned long t; |
| 1225 | |
| 1226 | if (parse_strtoul(buf, 1, &t)) |
| 1227 | return -EINVAL; |
| 1228 | |
| 1229 | tpacpi_uwb_emulstate = !!t; |
| 1230 | |
| 1231 | return count; |
| 1232 | } |
| 1233 | |
| 1234 | static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO, |
| 1235 | tpacpi_driver_uwb_emulstate_show, |
| 1236 | tpacpi_driver_uwb_emulstate_store); |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1237 | #endif |
| 1238 | |
| 1239 | /* --------------------------------------------------------------------- */ |
| 1240 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1241 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1242 | &driver_attr_debug_level, &driver_attr_version, |
| 1243 | &driver_attr_interface_version, |
| 1244 | }; |
| 1245 | |
| 1246 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) |
| 1247 | { |
| 1248 | int i, res; |
| 1249 | |
| 1250 | i = 0; |
| 1251 | res = 0; |
| 1252 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { |
| 1253 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); |
| 1254 | i++; |
| 1255 | } |
| 1256 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1257 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 1258 | if (!res && dbg_wlswemul) |
| 1259 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); |
| 1260 | if (!res && dbg_bluetoothemul) |
| 1261 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); |
| 1262 | if (!res && dbg_wwanemul) |
| 1263 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 1264 | if (!res && dbg_uwbemul) |
| 1265 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1266 | #endif |
| 1267 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1268 | return res; |
| 1269 | } |
| 1270 | |
| 1271 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) |
| 1272 | { |
| 1273 | int i; |
| 1274 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1275 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1276 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1277 | |
| 1278 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES |
| 1279 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); |
| 1280 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); |
| 1281 | driver_remove_file(drv, &driver_attr_wwan_emulstate); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 1282 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1283 | #endif |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1284 | } |
| 1285 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 1286 | /**************************************************************************** |
| 1287 | **************************************************************************** |
| 1288 | * |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 1289 | * Subdrivers |
| 1290 | * |
| 1291 | **************************************************************************** |
| 1292 | ****************************************************************************/ |
| 1293 | |
| 1294 | /************************************************************************* |
Henrique de Moraes Holschuh | 142cfc9 | 2007-04-21 11:08:26 -0300 | [diff] [blame] | 1295 | * thinkpad-acpi init subdriver |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 1296 | */ |
| 1297 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 1298 | static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 1300 | printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
| 1301 | printk(TPACPI_INFO "%s\n", TPACPI_URL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1302 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 1303 | printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 1304 | (thinkpad_id.bios_version_str) ? |
| 1305 | thinkpad_id.bios_version_str : "unknown", |
| 1306 | (thinkpad_id.ec_version_str) ? |
| 1307 | thinkpad_id.ec_version_str : "unknown"); |
| 1308 | |
| 1309 | if (thinkpad_id.vendor && thinkpad_id.model_str) |
Henrique de Moraes Holschuh | 8c74adb | 2008-04-26 01:02:19 -0300 | [diff] [blame] | 1310 | printk(TPACPI_INFO "%s %s, model %s\n", |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 1311 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
| 1312 | "IBM" : ((thinkpad_id.vendor == |
| 1313 | PCI_VENDOR_ID_LENOVO) ? |
| 1314 | "Lenovo" : "Unknown vendor"), |
Henrique de Moraes Holschuh | 8c74adb | 2008-04-26 01:02:19 -0300 | [diff] [blame] | 1315 | thinkpad_id.model_str, |
| 1316 | (thinkpad_id.nummodel_str) ? |
| 1317 | thinkpad_id.nummodel_str : "unknown"); |
Henrique de Moraes Holschuh | 3945ac3 | 2007-02-06 19:13:44 -0200 | [diff] [blame] | 1318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | return 0; |
| 1320 | } |
| 1321 | |
Henrique de Moraes Holschuh | 643f12d | 2007-03-29 01:58:43 -0300 | [diff] [blame] | 1322 | static int thinkpad_acpi_driver_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | { |
| 1324 | int len = 0; |
| 1325 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 1326 | len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); |
| 1327 | len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | |
| 1329 | return len; |
| 1330 | } |
| 1331 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 1332 | static struct ibm_struct thinkpad_acpi_driver_data = { |
| 1333 | .name = "driver", |
| 1334 | .read = thinkpad_acpi_driver_read, |
| 1335 | }; |
| 1336 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 1337 | /************************************************************************* |
| 1338 | * Hotkey subdriver |
| 1339 | */ |
| 1340 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 1341 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
| 1342 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, |
| 1343 | TP_ACPI_HOTKEYSCAN_FNF2, |
| 1344 | TP_ACPI_HOTKEYSCAN_FNF3, |
| 1345 | TP_ACPI_HOTKEYSCAN_FNF4, |
| 1346 | TP_ACPI_HOTKEYSCAN_FNF5, |
| 1347 | TP_ACPI_HOTKEYSCAN_FNF6, |
| 1348 | TP_ACPI_HOTKEYSCAN_FNF7, |
| 1349 | TP_ACPI_HOTKEYSCAN_FNF8, |
| 1350 | TP_ACPI_HOTKEYSCAN_FNF9, |
| 1351 | TP_ACPI_HOTKEYSCAN_FNF10, |
| 1352 | TP_ACPI_HOTKEYSCAN_FNF11, |
| 1353 | TP_ACPI_HOTKEYSCAN_FNF12, |
| 1354 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, |
| 1355 | TP_ACPI_HOTKEYSCAN_FNINSERT, |
| 1356 | TP_ACPI_HOTKEYSCAN_FNDELETE, |
| 1357 | TP_ACPI_HOTKEYSCAN_FNHOME, |
| 1358 | TP_ACPI_HOTKEYSCAN_FNEND, |
| 1359 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
| 1360 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, |
| 1361 | TP_ACPI_HOTKEYSCAN_FNSPACE, |
| 1362 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, |
| 1363 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, |
| 1364 | TP_ACPI_HOTKEYSCAN_MUTE, |
| 1365 | TP_ACPI_HOTKEYSCAN_THINKPAD, |
| 1366 | }; |
| 1367 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1368 | enum { /* Keys available through NVRAM polling */ |
| 1369 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
| 1370 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, |
| 1371 | }; |
| 1372 | |
| 1373 | enum { /* Positions of some of the keys in hotkey masks */ |
| 1374 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, |
| 1375 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, |
| 1376 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, |
| 1377 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, |
| 1378 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, |
| 1379 | TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
| 1380 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, |
| 1381 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, |
| 1382 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, |
| 1383 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, |
| 1384 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, |
| 1385 | }; |
| 1386 | |
| 1387 | enum { /* NVRAM to ACPI HKEY group map */ |
| 1388 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | |
| 1389 | TP_ACPI_HKEY_ZOOM_MASK | |
| 1390 | TP_ACPI_HKEY_DISPSWTCH_MASK | |
| 1391 | TP_ACPI_HKEY_HIBERNATE_MASK, |
| 1392 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | |
| 1393 | TP_ACPI_HKEY_BRGHTDWN_MASK, |
| 1394 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | |
| 1395 | TP_ACPI_HKEY_VOLDWN_MASK | |
| 1396 | TP_ACPI_HKEY_MUTE_MASK, |
| 1397 | }; |
| 1398 | |
| 1399 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 1400 | struct tp_nvram_state { |
| 1401 | u16 thinkpad_toggle:1; |
| 1402 | u16 zoom_toggle:1; |
| 1403 | u16 display_toggle:1; |
| 1404 | u16 thinklight_toggle:1; |
| 1405 | u16 hibernate_toggle:1; |
| 1406 | u16 displayexp_toggle:1; |
| 1407 | u16 display_state:1; |
| 1408 | u16 brightness_toggle:1; |
| 1409 | u16 volume_toggle:1; |
| 1410 | u16 mute:1; |
| 1411 | |
| 1412 | u8 brightness_level; |
| 1413 | u8 volume_level; |
| 1414 | }; |
| 1415 | |
| 1416 | static struct task_struct *tpacpi_hotkey_task; |
| 1417 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ |
| 1418 | static int hotkey_poll_freq = 10; /* Hz */ |
| 1419 | static struct mutex hotkey_thread_mutex; |
| 1420 | static struct mutex hotkey_thread_data_mutex; |
| 1421 | static unsigned int hotkey_config_change; |
| 1422 | |
| 1423 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 1424 | |
| 1425 | #define hotkey_source_mask 0U |
| 1426 | |
| 1427 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 1428 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 1429 | static struct mutex hotkey_mutex; |
| 1430 | |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 1431 | static enum { /* Reasons for waking up */ |
| 1432 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ |
| 1433 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ |
| 1434 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ |
| 1435 | } hotkey_wakeup_reason; |
| 1436 | |
| 1437 | static int hotkey_autosleep_ack; |
| 1438 | |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 1439 | static u32 hotkey_orig_mask; |
Henrique de Moraes Holschuh | 9b010de | 2007-07-18 23:45:30 -0300 | [diff] [blame] | 1440 | static u32 hotkey_all_mask; |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 1441 | static u32 hotkey_reserved_mask; |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1442 | static u32 hotkey_mask; |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 1443 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 1444 | static unsigned int hotkey_report_mode; |
| 1445 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 1446 | static u16 *hotkey_keycode_map; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 1447 | |
Henrique de Moraes Holschuh | 94954cc | 2007-07-18 23:45:27 -0300 | [diff] [blame] | 1448 | static struct attribute_set *hotkey_dev_attributes; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1449 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1450 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 1451 | #define HOTKEY_CONFIG_CRITICAL_START \ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1452 | do { \ |
| 1453 | mutex_lock(&hotkey_thread_data_mutex); \ |
| 1454 | hotkey_config_change++; \ |
| 1455 | } while (0); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1456 | #define HOTKEY_CONFIG_CRITICAL_END \ |
| 1457 | mutex_unlock(&hotkey_thread_data_mutex); |
| 1458 | #else |
| 1459 | #define HOTKEY_CONFIG_CRITICAL_START |
| 1460 | #define HOTKEY_CONFIG_CRITICAL_END |
| 1461 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 1462 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1463 | /* HKEY.MHKG() return bits */ |
| 1464 | #define TP_HOTKEY_TABLET_MASK (1 << 3) |
| 1465 | |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 1466 | static int hotkey_get_wlsw(int *status) |
| 1467 | { |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 1468 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 1469 | if (dbg_wlswemul) { |
| 1470 | *status = !!tpacpi_wlsw_emulstate; |
| 1471 | return 0; |
| 1472 | } |
| 1473 | #endif |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 1474 | if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) |
| 1475 | return -EIO; |
| 1476 | return 0; |
| 1477 | } |
| 1478 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1479 | static int hotkey_get_tablet_mode(int *status) |
| 1480 | { |
| 1481 | int s; |
| 1482 | |
| 1483 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) |
| 1484 | return -EIO; |
| 1485 | |
Henrique de Moraes Holschuh | cee47f5 | 2008-03-04 14:29:21 -0800 | [diff] [blame] | 1486 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); |
| 1487 | return 0; |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1488 | } |
| 1489 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1490 | /* |
| 1491 | * Call with hotkey_mutex held |
| 1492 | */ |
| 1493 | static int hotkey_mask_get(void) |
| 1494 | { |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1495 | u32 m = 0; |
| 1496 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1497 | if (tp_features.hotkey_mask) { |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1498 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1499 | return -EIO; |
| 1500 | } |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1501 | hotkey_mask = m | (hotkey_source_mask & hotkey_mask); |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1502 | |
| 1503 | return 0; |
| 1504 | } |
| 1505 | |
| 1506 | /* |
| 1507 | * Call with hotkey_mutex held |
| 1508 | */ |
| 1509 | static int hotkey_mask_set(u32 mask) |
| 1510 | { |
| 1511 | int i; |
| 1512 | int rc = 0; |
| 1513 | |
| 1514 | if (tp_features.hotkey_mask) { |
Henrique de Moraes Holschuh | 9288902 | 2008-04-26 01:02:18 -0300 | [diff] [blame] | 1515 | if (!tp_warned.hotkey_mask_ff && |
| 1516 | (mask == 0xffff || mask == 0xffffff || |
| 1517 | mask == 0xffffffff)) { |
| 1518 | tp_warned.hotkey_mask_ff = 1; |
| 1519 | printk(TPACPI_NOTICE |
| 1520 | "setting the hotkey mask to 0x%08x is likely " |
| 1521 | "not the best way to go about it\n", mask); |
| 1522 | printk(TPACPI_NOTICE |
| 1523 | "please consider using the driver defaults, " |
| 1524 | "and refer to up-to-date thinkpad-acpi " |
| 1525 | "documentation\n"); |
| 1526 | } |
| 1527 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1528 | HOTKEY_CONFIG_CRITICAL_START |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1529 | for (i = 0; i < 32; i++) { |
| 1530 | u32 m = 1 << i; |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1531 | /* enable in firmware mask only keys not in NVRAM |
| 1532 | * mode, but enable the key in the cached hotkey_mask |
| 1533 | * regardless of mode, or the key will end up |
| 1534 | * disabled by hotkey_mask_get() */ |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1535 | if (!acpi_evalf(hkey_handle, |
| 1536 | NULL, "MHKM", "vdd", i + 1, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1537 | !!((mask & ~hotkey_source_mask) & m))) { |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1538 | rc = -EIO; |
| 1539 | break; |
| 1540 | } else { |
| 1541 | hotkey_mask = (hotkey_mask & ~m) | (mask & m); |
| 1542 | } |
| 1543 | } |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1544 | HOTKEY_CONFIG_CRITICAL_END |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1545 | |
| 1546 | /* hotkey_mask_get must be called unconditionally below */ |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1547 | if (!hotkey_mask_get() && !rc && |
| 1548 | (hotkey_mask & ~hotkey_source_mask) != |
| 1549 | (mask & ~hotkey_source_mask)) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 1550 | printk(TPACPI_NOTICE |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1551 | "requested hot key mask 0x%08x, but " |
| 1552 | "firmware forced it to 0x%08x\n", |
| 1553 | mask, hotkey_mask); |
| 1554 | } |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1555 | } else { |
| 1556 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 1557 | HOTKEY_CONFIG_CRITICAL_START |
| 1558 | hotkey_mask = mask & hotkey_source_mask; |
| 1559 | HOTKEY_CONFIG_CRITICAL_END |
| 1560 | hotkey_mask_get(); |
| 1561 | if (hotkey_mask != mask) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 1562 | printk(TPACPI_NOTICE |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1563 | "requested hot key mask 0x%08x, " |
| 1564 | "forced to 0x%08x (NVRAM poll mask is " |
| 1565 | "0x%08x): no firmware mask support\n", |
| 1566 | mask, hotkey_mask, hotkey_source_mask); |
| 1567 | } |
| 1568 | #else |
| 1569 | hotkey_mask_get(); |
| 1570 | rc = -ENXIO; |
| 1571 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1572 | } |
| 1573 | |
| 1574 | return rc; |
| 1575 | } |
| 1576 | |
| 1577 | static int hotkey_status_get(int *status) |
| 1578 | { |
| 1579 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) |
| 1580 | return -EIO; |
| 1581 | |
| 1582 | return 0; |
| 1583 | } |
| 1584 | |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1585 | static int hotkey_status_set(bool enable) |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1586 | { |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1587 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1588 | return -EIO; |
| 1589 | |
| 1590 | return 0; |
| 1591 | } |
| 1592 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1593 | static void tpacpi_input_send_tabletsw(void) |
Henrique de Moraes Holschuh | b3ec6f9 | 2008-02-16 02:17:55 -0200 | [diff] [blame] | 1594 | { |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1595 | int state; |
Henrique de Moraes Holschuh | b3ec6f9 | 2008-02-16 02:17:55 -0200 | [diff] [blame] | 1596 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1597 | if (tp_features.hotkey_tablet && |
| 1598 | !hotkey_get_tablet_mode(&state)) { |
| 1599 | mutex_lock(&tpacpi_inputdev_send_mutex); |
Henrique de Moraes Holschuh | b3ec6f9 | 2008-02-16 02:17:55 -0200 | [diff] [blame] | 1600 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 1601 | input_report_switch(tpacpi_inputdev, |
| 1602 | SW_TABLET_MODE, !!state); |
| 1603 | input_sync(tpacpi_inputdev); |
| 1604 | |
| 1605 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
| 1606 | } |
Henrique de Moraes Holschuh | b3ec6f9 | 2008-02-16 02:17:55 -0200 | [diff] [blame] | 1607 | } |
| 1608 | |
Henrique de Moraes Holschuh | b7c8c20 | 2008-01-08 13:02:40 -0200 | [diff] [blame] | 1609 | static void tpacpi_input_send_key(unsigned int scancode) |
| 1610 | { |
| 1611 | unsigned int keycode; |
| 1612 | |
| 1613 | keycode = hotkey_keycode_map[scancode]; |
| 1614 | |
| 1615 | if (keycode != KEY_RESERVED) { |
| 1616 | mutex_lock(&tpacpi_inputdev_send_mutex); |
| 1617 | |
| 1618 | input_report_key(tpacpi_inputdev, keycode, 1); |
| 1619 | if (keycode == KEY_UNKNOWN) |
| 1620 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, |
| 1621 | scancode); |
| 1622 | input_sync(tpacpi_inputdev); |
| 1623 | |
| 1624 | input_report_key(tpacpi_inputdev, keycode, 0); |
| 1625 | if (keycode == KEY_UNKNOWN) |
| 1626 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, |
| 1627 | scancode); |
| 1628 | input_sync(tpacpi_inputdev); |
| 1629 | |
| 1630 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
| 1631 | } |
| 1632 | } |
| 1633 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1634 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 1635 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; |
| 1636 | |
| 1637 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
| 1638 | { |
| 1639 | tpacpi_input_send_key(scancode); |
| 1640 | if (hotkey_report_mode < 2) { |
| 1641 | acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, |
| 1642 | 0x80, 0x1001 + scancode); |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) |
| 1647 | { |
| 1648 | u8 d; |
| 1649 | |
| 1650 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { |
| 1651 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); |
| 1652 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); |
| 1653 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); |
| 1654 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); |
| 1655 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); |
| 1656 | } |
| 1657 | if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { |
| 1658 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); |
| 1659 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); |
| 1660 | } |
| 1661 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { |
| 1662 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); |
| 1663 | n->displayexp_toggle = |
| 1664 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); |
| 1665 | } |
| 1666 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { |
| 1667 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); |
| 1668 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) |
| 1669 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; |
| 1670 | n->brightness_toggle = |
| 1671 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); |
| 1672 | } |
| 1673 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { |
| 1674 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); |
| 1675 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) |
| 1676 | >> TP_NVRAM_POS_LEVEL_VOLUME; |
| 1677 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); |
| 1678 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); |
| 1679 | } |
| 1680 | } |
| 1681 | |
| 1682 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1683 | do { \ |
| 1684 | if ((mask & (1 << __scancode)) && \ |
| 1685 | oldn->__member != newn->__member) \ |
| 1686 | tpacpi_hotkey_send_key(__scancode); \ |
| 1687 | } while (0) |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1688 | |
| 1689 | #define TPACPI_MAY_SEND_KEY(__scancode) \ |
| 1690 | do { if (mask & (1 << __scancode)) \ |
| 1691 | tpacpi_hotkey_send_key(__scancode); } while (0) |
| 1692 | |
| 1693 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1694 | struct tp_nvram_state *newn, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1695 | u32 mask) |
| 1696 | { |
| 1697 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
| 1698 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); |
| 1699 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); |
| 1700 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); |
| 1701 | |
| 1702 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); |
| 1703 | |
| 1704 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); |
| 1705 | |
| 1706 | /* handle volume */ |
| 1707 | if (oldn->volume_toggle != newn->volume_toggle) { |
| 1708 | if (oldn->mute != newn->mute) { |
| 1709 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
| 1710 | } |
| 1711 | if (oldn->volume_level > newn->volume_level) { |
| 1712 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
| 1713 | } else if (oldn->volume_level < newn->volume_level) { |
| 1714 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
| 1715 | } else if (oldn->mute == newn->mute) { |
| 1716 | /* repeated key presses that didn't change state */ |
| 1717 | if (newn->mute) { |
| 1718 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
| 1719 | } else if (newn->volume_level != 0) { |
| 1720 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
| 1721 | } else { |
| 1722 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
| 1723 | } |
| 1724 | } |
| 1725 | } |
| 1726 | |
| 1727 | /* handle brightness */ |
| 1728 | if (oldn->brightness_toggle != newn->brightness_toggle) { |
| 1729 | if (oldn->brightness_level < newn->brightness_level) { |
| 1730 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); |
| 1731 | } else if (oldn->brightness_level > newn->brightness_level) { |
| 1732 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
| 1733 | } else { |
| 1734 | /* repeated key presses that didn't change state */ |
| 1735 | if (newn->brightness_level != 0) { |
| 1736 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); |
| 1737 | } else { |
| 1738 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
| 1739 | } |
| 1740 | } |
| 1741 | } |
| 1742 | } |
| 1743 | |
| 1744 | #undef TPACPI_COMPARE_KEY |
| 1745 | #undef TPACPI_MAY_SEND_KEY |
| 1746 | |
| 1747 | static int hotkey_kthread(void *data) |
| 1748 | { |
| 1749 | struct tp_nvram_state s[2]; |
| 1750 | u32 mask; |
| 1751 | unsigned int si, so; |
| 1752 | unsigned long t; |
| 1753 | unsigned int change_detector, must_reset; |
| 1754 | |
| 1755 | mutex_lock(&hotkey_thread_mutex); |
| 1756 | |
| 1757 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
| 1758 | goto exit; |
| 1759 | |
| 1760 | set_freezable(); |
| 1761 | |
| 1762 | so = 0; |
| 1763 | si = 1; |
| 1764 | t = 0; |
| 1765 | |
| 1766 | /* Initial state for compares */ |
| 1767 | mutex_lock(&hotkey_thread_data_mutex); |
| 1768 | change_detector = hotkey_config_change; |
| 1769 | mask = hotkey_source_mask & hotkey_mask; |
| 1770 | mutex_unlock(&hotkey_thread_data_mutex); |
| 1771 | hotkey_read_nvram(&s[so], mask); |
| 1772 | |
| 1773 | while (!kthread_should_stop() && hotkey_poll_freq) { |
| 1774 | if (t == 0) |
| 1775 | t = 1000/hotkey_poll_freq; |
| 1776 | t = msleep_interruptible(t); |
| 1777 | if (unlikely(kthread_should_stop())) |
| 1778 | break; |
| 1779 | must_reset = try_to_freeze(); |
| 1780 | if (t > 0 && !must_reset) |
| 1781 | continue; |
| 1782 | |
| 1783 | mutex_lock(&hotkey_thread_data_mutex); |
| 1784 | if (must_reset || hotkey_config_change != change_detector) { |
| 1785 | /* forget old state on thaw or config change */ |
| 1786 | si = so; |
| 1787 | t = 0; |
| 1788 | change_detector = hotkey_config_change; |
| 1789 | } |
| 1790 | mask = hotkey_source_mask & hotkey_mask; |
| 1791 | mutex_unlock(&hotkey_thread_data_mutex); |
| 1792 | |
| 1793 | if (likely(mask)) { |
| 1794 | hotkey_read_nvram(&s[si], mask); |
| 1795 | if (likely(si != so)) { |
| 1796 | hotkey_compare_and_issue_event(&s[so], &s[si], |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1797 | mask); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | so = si; |
| 1802 | si ^= 1; |
| 1803 | } |
| 1804 | |
| 1805 | exit: |
| 1806 | mutex_unlock(&hotkey_thread_mutex); |
| 1807 | return 0; |
| 1808 | } |
| 1809 | |
| 1810 | static void hotkey_poll_stop_sync(void) |
| 1811 | { |
| 1812 | if (tpacpi_hotkey_task) { |
| 1813 | if (frozen(tpacpi_hotkey_task) || |
| 1814 | freezing(tpacpi_hotkey_task)) |
| 1815 | thaw_process(tpacpi_hotkey_task); |
| 1816 | |
| 1817 | kthread_stop(tpacpi_hotkey_task); |
| 1818 | tpacpi_hotkey_task = NULL; |
| 1819 | mutex_lock(&hotkey_thread_mutex); |
| 1820 | /* at this point, the thread did exit */ |
| 1821 | mutex_unlock(&hotkey_thread_mutex); |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | /* call with hotkey_mutex held */ |
| 1826 | static void hotkey_poll_setup(int may_warn) |
| 1827 | { |
| 1828 | if ((hotkey_source_mask & hotkey_mask) != 0 && |
| 1829 | hotkey_poll_freq > 0 && |
| 1830 | (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { |
| 1831 | if (!tpacpi_hotkey_task) { |
| 1832 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, |
Henrique de Moraes Holschuh | 95e57ab | 2008-04-26 01:02:22 -0300 | [diff] [blame] | 1833 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1834 | if (IS_ERR(tpacpi_hotkey_task)) { |
| 1835 | tpacpi_hotkey_task = NULL; |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1836 | printk(TPACPI_ERR |
| 1837 | "could not create kernel thread " |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1838 | "for hotkey polling\n"); |
| 1839 | } |
| 1840 | } |
| 1841 | } else { |
| 1842 | hotkey_poll_stop_sync(); |
| 1843 | if (may_warn && |
| 1844 | hotkey_source_mask != 0 && hotkey_poll_freq == 0) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 1845 | printk(TPACPI_NOTICE |
| 1846 | "hot keys 0x%08x require polling, " |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1847 | "which is currently disabled\n", |
| 1848 | hotkey_source_mask); |
| 1849 | } |
| 1850 | } |
| 1851 | } |
| 1852 | |
| 1853 | static void hotkey_poll_setup_safe(int may_warn) |
| 1854 | { |
| 1855 | mutex_lock(&hotkey_mutex); |
| 1856 | hotkey_poll_setup(may_warn); |
| 1857 | mutex_unlock(&hotkey_mutex); |
| 1858 | } |
| 1859 | |
Henrique de Moraes Holschuh | 1bc6b9c | 2008-02-16 02:17:52 -0200 | [diff] [blame] | 1860 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 1861 | |
| 1862 | static void hotkey_poll_setup_safe(int __unused) |
| 1863 | { |
| 1864 | } |
| 1865 | |
| 1866 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 1867 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1868 | static int hotkey_inputdev_open(struct input_dev *dev) |
| 1869 | { |
| 1870 | switch (tpacpi_lifecycle) { |
| 1871 | case TPACPI_LIFE_INIT: |
| 1872 | /* |
| 1873 | * hotkey_init will call hotkey_poll_setup_safe |
| 1874 | * at the appropriate moment |
| 1875 | */ |
| 1876 | return 0; |
| 1877 | case TPACPI_LIFE_EXITING: |
| 1878 | return -EBUSY; |
| 1879 | case TPACPI_LIFE_RUNNING: |
| 1880 | hotkey_poll_setup_safe(0); |
| 1881 | return 0; |
| 1882 | } |
| 1883 | |
| 1884 | /* Should only happen if tpacpi_lifecycle is corrupt */ |
| 1885 | BUG(); |
| 1886 | return -EBUSY; |
| 1887 | } |
| 1888 | |
| 1889 | static void hotkey_inputdev_close(struct input_dev *dev) |
| 1890 | { |
| 1891 | /* disable hotkey polling when possible */ |
| 1892 | if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) |
| 1893 | hotkey_poll_setup_safe(0); |
| 1894 | } |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1895 | |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1896 | /* sysfs hotkey enable ------------------------------------------------- */ |
| 1897 | static ssize_t hotkey_enable_show(struct device *dev, |
| 1898 | struct device_attribute *attr, |
| 1899 | char *buf) |
| 1900 | { |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 1901 | int res, status; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1902 | |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1903 | printk_deprecated_attribute("hotkey_enable", |
| 1904 | "Hotkey reporting is always enabled"); |
| 1905 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1906 | res = hotkey_status_get(&status); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1907 | if (res) |
| 1908 | return res; |
| 1909 | |
| 1910 | return snprintf(buf, PAGE_SIZE, "%d\n", status); |
| 1911 | } |
| 1912 | |
| 1913 | static ssize_t hotkey_enable_store(struct device *dev, |
| 1914 | struct device_attribute *attr, |
| 1915 | const char *buf, size_t count) |
| 1916 | { |
| 1917 | unsigned long t; |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1918 | |
| 1919 | printk_deprecated_attribute("hotkey_enable", |
| 1920 | "Hotkeys can be disabled through hotkey_mask"); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1921 | |
| 1922 | if (parse_strtoul(buf, 1, &t)) |
| 1923 | return -EINVAL; |
| 1924 | |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1925 | if (t == 0) |
| 1926 | return -EPERM; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1927 | |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1928 | return count; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1929 | } |
| 1930 | |
| 1931 | static struct device_attribute dev_attr_hotkey_enable = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 1932 | __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1933 | hotkey_enable_show, hotkey_enable_store); |
| 1934 | |
| 1935 | /* sysfs hotkey mask --------------------------------------------------- */ |
| 1936 | static ssize_t hotkey_mask_show(struct device *dev, |
| 1937 | struct device_attribute *attr, |
| 1938 | char *buf) |
| 1939 | { |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1940 | int res; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1941 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 1942 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1943 | return -ERESTARTSYS; |
| 1944 | res = hotkey_mask_get(); |
| 1945 | mutex_unlock(&hotkey_mutex); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1946 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1947 | return (res)? |
| 1948 | res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1949 | } |
| 1950 | |
| 1951 | static ssize_t hotkey_mask_store(struct device *dev, |
| 1952 | struct device_attribute *attr, |
| 1953 | const char *buf, size_t count) |
| 1954 | { |
| 1955 | unsigned long t; |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1956 | int res; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1957 | |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 1958 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1959 | return -EINVAL; |
| 1960 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 1961 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1962 | return -ERESTARTSYS; |
| 1963 | |
| 1964 | res = hotkey_mask_set(t); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 1965 | |
| 1966 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 1967 | hotkey_poll_setup(1); |
| 1968 | #endif |
| 1969 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 1970 | mutex_unlock(&hotkey_mutex); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1971 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 1972 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
| 1973 | |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1974 | return (res) ? res : count; |
| 1975 | } |
| 1976 | |
| 1977 | static struct device_attribute dev_attr_hotkey_mask = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 1978 | __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1979 | hotkey_mask_show, hotkey_mask_store); |
| 1980 | |
| 1981 | /* sysfs hotkey bios_enabled ------------------------------------------- */ |
| 1982 | static ssize_t hotkey_bios_enabled_show(struct device *dev, |
| 1983 | struct device_attribute *attr, |
| 1984 | char *buf) |
| 1985 | { |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 1986 | return sprintf(buf, "0\n"); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1987 | } |
| 1988 | |
| 1989 | static struct device_attribute dev_attr_hotkey_bios_enabled = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 1990 | __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1991 | |
| 1992 | /* sysfs hotkey bios_mask ---------------------------------------------- */ |
| 1993 | static ssize_t hotkey_bios_mask_show(struct device *dev, |
| 1994 | struct device_attribute *attr, |
| 1995 | char *buf) |
| 1996 | { |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 1997 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 1998 | } |
| 1999 | |
| 2000 | static struct device_attribute dev_attr_hotkey_bios_mask = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 2001 | __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2002 | |
Henrique de Moraes Holschuh | 9b010de | 2007-07-18 23:45:30 -0300 | [diff] [blame] | 2003 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
| 2004 | static ssize_t hotkey_all_mask_show(struct device *dev, |
| 2005 | struct device_attribute *attr, |
| 2006 | char *buf) |
| 2007 | { |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2008 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
| 2009 | hotkey_all_mask | hotkey_source_mask); |
Henrique de Moraes Holschuh | 9b010de | 2007-07-18 23:45:30 -0300 | [diff] [blame] | 2010 | } |
| 2011 | |
| 2012 | static struct device_attribute dev_attr_hotkey_all_mask = |
| 2013 | __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); |
| 2014 | |
| 2015 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
| 2016 | static ssize_t hotkey_recommended_mask_show(struct device *dev, |
| 2017 | struct device_attribute *attr, |
| 2018 | char *buf) |
| 2019 | { |
| 2020 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2021 | (hotkey_all_mask | hotkey_source_mask) |
| 2022 | & ~hotkey_reserved_mask); |
Henrique de Moraes Holschuh | 9b010de | 2007-07-18 23:45:30 -0300 | [diff] [blame] | 2023 | } |
| 2024 | |
| 2025 | static struct device_attribute dev_attr_hotkey_recommended_mask = |
| 2026 | __ATTR(hotkey_recommended_mask, S_IRUGO, |
| 2027 | hotkey_recommended_mask_show, NULL); |
| 2028 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2029 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 2030 | |
| 2031 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ |
| 2032 | static ssize_t hotkey_source_mask_show(struct device *dev, |
| 2033 | struct device_attribute *attr, |
| 2034 | char *buf) |
| 2035 | { |
| 2036 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); |
| 2037 | } |
| 2038 | |
| 2039 | static ssize_t hotkey_source_mask_store(struct device *dev, |
| 2040 | struct device_attribute *attr, |
| 2041 | const char *buf, size_t count) |
| 2042 | { |
| 2043 | unsigned long t; |
| 2044 | |
| 2045 | if (parse_strtoul(buf, 0xffffffffUL, &t) || |
| 2046 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) |
| 2047 | return -EINVAL; |
| 2048 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 2049 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2050 | return -ERESTARTSYS; |
| 2051 | |
| 2052 | HOTKEY_CONFIG_CRITICAL_START |
| 2053 | hotkey_source_mask = t; |
| 2054 | HOTKEY_CONFIG_CRITICAL_END |
| 2055 | |
| 2056 | hotkey_poll_setup(1); |
| 2057 | |
| 2058 | mutex_unlock(&hotkey_mutex); |
| 2059 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2060 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
| 2061 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2062 | return count; |
| 2063 | } |
| 2064 | |
| 2065 | static struct device_attribute dev_attr_hotkey_source_mask = |
| 2066 | __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, |
| 2067 | hotkey_source_mask_show, hotkey_source_mask_store); |
| 2068 | |
| 2069 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ |
| 2070 | static ssize_t hotkey_poll_freq_show(struct device *dev, |
| 2071 | struct device_attribute *attr, |
| 2072 | char *buf) |
| 2073 | { |
| 2074 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); |
| 2075 | } |
| 2076 | |
| 2077 | static ssize_t hotkey_poll_freq_store(struct device *dev, |
| 2078 | struct device_attribute *attr, |
| 2079 | const char *buf, size_t count) |
| 2080 | { |
| 2081 | unsigned long t; |
| 2082 | |
| 2083 | if (parse_strtoul(buf, 25, &t)) |
| 2084 | return -EINVAL; |
| 2085 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 2086 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2087 | return -ERESTARTSYS; |
| 2088 | |
| 2089 | hotkey_poll_freq = t; |
| 2090 | |
| 2091 | hotkey_poll_setup(1); |
| 2092 | mutex_unlock(&hotkey_mutex); |
| 2093 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2094 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
| 2095 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2096 | return count; |
| 2097 | } |
| 2098 | |
| 2099 | static struct device_attribute dev_attr_hotkey_poll_freq = |
| 2100 | __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, |
| 2101 | hotkey_poll_freq_show, hotkey_poll_freq_store); |
| 2102 | |
| 2103 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
| 2104 | |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2105 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 2106 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
| 2107 | struct device_attribute *attr, |
| 2108 | char *buf) |
| 2109 | { |
| 2110 | int res, s; |
| 2111 | res = hotkey_get_wlsw(&s); |
| 2112 | if (res < 0) |
| 2113 | return res; |
| 2114 | |
| 2115 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); |
| 2116 | } |
| 2117 | |
| 2118 | static struct device_attribute dev_attr_hotkey_radio_sw = |
| 2119 | __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); |
| 2120 | |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2121 | static void hotkey_radio_sw_notify_change(void) |
| 2122 | { |
| 2123 | if (tp_features.hotkey_wlsw) |
| 2124 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
| 2125 | "hotkey_radio_sw"); |
| 2126 | } |
| 2127 | |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 2128 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
| 2129 | static ssize_t hotkey_tablet_mode_show(struct device *dev, |
| 2130 | struct device_attribute *attr, |
| 2131 | char *buf) |
| 2132 | { |
| 2133 | int res, s; |
| 2134 | res = hotkey_get_tablet_mode(&s); |
| 2135 | if (res < 0) |
| 2136 | return res; |
| 2137 | |
| 2138 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); |
| 2139 | } |
| 2140 | |
| 2141 | static struct device_attribute dev_attr_hotkey_tablet_mode = |
| 2142 | __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); |
| 2143 | |
| 2144 | static void hotkey_tablet_mode_notify_change(void) |
| 2145 | { |
| 2146 | if (tp_features.hotkey_tablet) |
| 2147 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
| 2148 | "hotkey_tablet_mode"); |
| 2149 | } |
| 2150 | |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2151 | /* sysfs hotkey report_mode -------------------------------------------- */ |
| 2152 | static ssize_t hotkey_report_mode_show(struct device *dev, |
| 2153 | struct device_attribute *attr, |
| 2154 | char *buf) |
| 2155 | { |
| 2156 | return snprintf(buf, PAGE_SIZE, "%d\n", |
| 2157 | (hotkey_report_mode != 0) ? hotkey_report_mode : 1); |
| 2158 | } |
| 2159 | |
| 2160 | static struct device_attribute dev_attr_hotkey_report_mode = |
| 2161 | __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); |
| 2162 | |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2163 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2164 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
| 2165 | struct device_attribute *attr, |
| 2166 | char *buf) |
| 2167 | { |
| 2168 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); |
| 2169 | } |
| 2170 | |
| 2171 | static struct device_attribute dev_attr_hotkey_wakeup_reason = |
| 2172 | __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
| 2173 | |
Adrian Bunk | 1d5a2b5 | 2008-02-13 23:30:06 +0200 | [diff] [blame] | 2174 | static void hotkey_wakeup_reason_notify_change(void) |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2175 | { |
| 2176 | if (tp_features.hotkey_mask) |
| 2177 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
| 2178 | "wakeup_reason"); |
| 2179 | } |
| 2180 | |
| 2181 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2182 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
| 2183 | struct device_attribute *attr, |
| 2184 | char *buf) |
| 2185 | { |
| 2186 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); |
| 2187 | } |
| 2188 | |
| 2189 | static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = |
| 2190 | __ATTR(wakeup_hotunplug_complete, S_IRUGO, |
| 2191 | hotkey_wakeup_hotunplug_complete_show, NULL); |
| 2192 | |
Adrian Bunk | 1d5a2b5 | 2008-02-13 23:30:06 +0200 | [diff] [blame] | 2193 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2194 | { |
| 2195 | if (tp_features.hotkey_mask) |
| 2196 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
| 2197 | "wakeup_hotunplug_complete"); |
| 2198 | } |
| 2199 | |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2200 | /* --------------------------------------------------------------------- */ |
| 2201 | |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2202 | static struct attribute *hotkey_attributes[] __initdata = { |
| 2203 | &dev_attr_hotkey_enable.attr, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2204 | &dev_attr_hotkey_bios_enabled.attr, |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2205 | &dev_attr_hotkey_report_mode.attr, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2206 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 2207 | &dev_attr_hotkey_mask.attr, |
| 2208 | &dev_attr_hotkey_all_mask.attr, |
| 2209 | &dev_attr_hotkey_recommended_mask.attr, |
| 2210 | &dev_attr_hotkey_source_mask.attr, |
| 2211 | &dev_attr_hotkey_poll_freq.attr, |
| 2212 | #endif |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2213 | }; |
| 2214 | |
| 2215 | static struct attribute *hotkey_mask_attributes[] __initdata = { |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2216 | &dev_attr_hotkey_bios_mask.attr, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2217 | #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 2218 | &dev_attr_hotkey_mask.attr, |
Henrique de Moraes Holschuh | 9b010de | 2007-07-18 23:45:30 -0300 | [diff] [blame] | 2219 | &dev_attr_hotkey_all_mask.attr, |
| 2220 | &dev_attr_hotkey_recommended_mask.attr, |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2221 | #endif |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2222 | &dev_attr_hotkey_wakeup_reason.attr, |
| 2223 | &dev_attr_hotkey_wakeup_hotunplug_complete.attr, |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2224 | }; |
| 2225 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 2226 | static void bluetooth_update_rfk(void); |
| 2227 | static void wan_update_rfk(void); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 2228 | static void uwb_update_rfk(void); |
Henrique de Moraes Holschuh | 733e27c | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2229 | static void tpacpi_send_radiosw_update(void) |
| 2230 | { |
| 2231 | int wlsw; |
| 2232 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 2233 | /* Sync these BEFORE sending any rfkill events */ |
| 2234 | if (tp_features.bluetooth) |
| 2235 | bluetooth_update_rfk(); |
| 2236 | if (tp_features.wan) |
| 2237 | wan_update_rfk(); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 2238 | if (tp_features.uwb) |
| 2239 | uwb_update_rfk(); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 2240 | |
Henrique de Moraes Holschuh | 733e27c | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2241 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { |
| 2242 | mutex_lock(&tpacpi_inputdev_send_mutex); |
| 2243 | |
| 2244 | input_report_switch(tpacpi_inputdev, |
| 2245 | SW_RFKILL_ALL, !!wlsw); |
| 2246 | input_sync(tpacpi_inputdev); |
| 2247 | |
| 2248 | mutex_unlock(&tpacpi_inputdev_send_mutex); |
| 2249 | } |
| 2250 | hotkey_radio_sw_notify_change(); |
| 2251 | } |
| 2252 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2253 | static void hotkey_exit(void) |
| 2254 | { |
| 2255 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 2256 | hotkey_poll_stop_sync(); |
| 2257 | #endif |
| 2258 | |
| 2259 | if (hotkey_dev_attributes) |
| 2260 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); |
| 2261 | |
| 2262 | kfree(hotkey_keycode_map); |
| 2263 | |
| 2264 | if (tp_features.hotkey) { |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2265 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2266 | "restoring original hot key mask\n"); |
| 2267 | /* no short-circuit boolean operator below! */ |
| 2268 | if ((hotkey_mask_set(hotkey_orig_mask) | |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2269 | hotkey_status_set(false)) != 0) |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2270 | printk(TPACPI_ERR |
| 2271 | "failed to restore hot key mask " |
| 2272 | "to BIOS defaults\n"); |
| 2273 | } |
| 2274 | } |
| 2275 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 2276 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2277 | { |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2278 | /* Requirements for changing the default keymaps: |
| 2279 | * |
| 2280 | * 1. Many of the keys are mapped to KEY_RESERVED for very |
| 2281 | * good reasons. Do not change them unless you have deep |
| 2282 | * knowledge on the IBM and Lenovo ThinkPad firmware for |
| 2283 | * the various ThinkPad models. The driver behaves |
| 2284 | * differently for KEY_RESERVED: such keys have their |
| 2285 | * hot key mask *unset* in mask_recommended, and also |
| 2286 | * in the initial hot key mask programmed into the |
| 2287 | * firmware at driver load time, which means the firm- |
| 2288 | * ware may react very differently if you change them to |
| 2289 | * something else; |
| 2290 | * |
| 2291 | * 2. You must be subscribed to the linux-thinkpad and |
| 2292 | * ibm-acpi-devel mailing lists, and you should read the |
| 2293 | * list archives since 2007 if you want to change the |
| 2294 | * keymaps. This requirement exists so that you will |
| 2295 | * know the past history of problems with the thinkpad- |
| 2296 | * acpi driver keymaps, and also that you will be |
| 2297 | * listening to any bug reports; |
| 2298 | * |
| 2299 | * 3. Do not send thinkpad-acpi specific patches directly to |
| 2300 | * for merging, *ever*. Send them to the linux-acpi |
| 2301 | * mailinglist for comments. Merging is to be done only |
| 2302 | * through acpi-test and the ACPI maintainer. |
| 2303 | * |
| 2304 | * If the above is too much to ask, don't change the keymap. |
| 2305 | * Ask the thinkpad-acpi maintainer to do it, instead. |
| 2306 | */ |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2307 | static u16 ibm_keycode_map[] __initdata = { |
| 2308 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
| 2309 | KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, |
| 2310 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
| 2311 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2312 | |
| 2313 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2314 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
| 2315 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ |
| 2316 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2317 | |
| 2318 | /* brightness: firmware always reacts to them, unless |
| 2319 | * X.org did some tricks in the radeon BIOS scratch |
| 2320 | * registers of *some* models */ |
Henrique de Moraes Holschuh | e927c08 | 2007-10-30 17:46:19 -0200 | [diff] [blame] | 2321 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
Henrique de Moraes Holschuh | e927c08 | 2007-10-30 17:46:19 -0200 | [diff] [blame] | 2322 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2323 | |
| 2324 | /* Thinklight: firmware always react to it */ |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2325 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2326 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2327 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
| 2328 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2329 | |
| 2330 | /* Volume: firmware always react to it and reprograms |
| 2331 | * the built-in *extra* mixer. Never map it to control |
| 2332 | * another mixer by default. */ |
Henrique de Moraes Holschuh | e927c08 | 2007-10-30 17:46:19 -0200 | [diff] [blame] | 2333 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
| 2334 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ |
| 2335 | KEY_RESERVED, /* 0x16: MUTE */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2336 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2337 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2338 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2339 | /* (assignments unknown, please report if found) */ |
| 2340 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, |
| 2341 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, |
| 2342 | }; |
| 2343 | static u16 lenovo_keycode_map[] __initdata = { |
| 2344 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
| 2345 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, |
| 2346 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
| 2347 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2348 | |
| 2349 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2350 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
| 2351 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ |
| 2352 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2353 | |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 2354 | /* These either have to go through ACPI video, or |
| 2355 | * act like in the IBM ThinkPads, so don't ever |
| 2356 | * enable them by default */ |
Henrique de Moraes Holschuh | 56a185b | 2007-12-13 12:14:09 -0200 | [diff] [blame] | 2357 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
Henrique de Moraes Holschuh | 56a185b | 2007-12-13 12:14:09 -0200 | [diff] [blame] | 2358 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2359 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2360 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2361 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2362 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
| 2363 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2364 | |
| 2365 | /* Volume: z60/z61, T60 (BIOS version?): firmware always |
| 2366 | * react to it and reprograms the built-in *extra* mixer. |
| 2367 | * Never map it to control another mixer by default. |
| 2368 | * |
| 2369 | * T60?, T61, R60?, R61: firmware and EC tries to send |
| 2370 | * these over the regular keyboard, so these are no-ops, |
| 2371 | * but there are still weird bugs re. MUTE, so do not |
| 2372 | * change unless you get test reports from all Lenovo |
| 2373 | * models. May cause the BIOS to interfere with the |
| 2374 | * HDA mixer. |
| 2375 | */ |
Henrique de Moraes Holschuh | e927c08 | 2007-10-30 17:46:19 -0200 | [diff] [blame] | 2376 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
| 2377 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ |
| 2378 | KEY_RESERVED, /* 0x16: MUTE */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2379 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2380 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
Henrique de Moraes Holschuh | 0f08914 | 2008-01-08 13:02:38 -0200 | [diff] [blame] | 2381 | |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2382 | /* (assignments unknown, please report if found) */ |
| 2383 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, |
| 2384 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, |
| 2385 | }; |
| 2386 | |
| 2387 | #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) |
| 2388 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) |
| 2389 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) |
| 2390 | |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2391 | int res, i; |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 2392 | int status; |
Henrique de Moraes Holschuh | 1b6521d | 2007-09-23 11:39:03 -0300 | [diff] [blame] | 2393 | int hkeyv; |
Henrique de Moraes Holschuh | b86c472 | 2007-04-21 11:08:39 -0300 | [diff] [blame] | 2394 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2395 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2396 | "initializing hotkey subdriver\n"); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 2397 | |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2398 | BUG_ON(!tpacpi_inputdev); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2399 | BUG_ON(tpacpi_inputdev->open != NULL || |
| 2400 | tpacpi_inputdev->close != NULL); |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2401 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 2402 | TPACPI_ACPIHANDLE_INIT(hkey); |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 2403 | mutex_init(&hotkey_mutex); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 2404 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2405 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
| 2406 | mutex_init(&hotkey_thread_mutex); |
| 2407 | mutex_init(&hotkey_thread_data_mutex); |
| 2408 | #endif |
| 2409 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2410 | /* hotkey not supported on 570 */ |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 2411 | tp_features.hotkey = hkey_handle != NULL; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2412 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2413 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2414 | "hotkeys are %s\n", |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 2415 | str_supported(tp_features.hotkey)); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 2416 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2417 | if (!tp_features.hotkey) |
| 2418 | return 1; |
| 2419 | |
Henrique de Moraes Holschuh | d64c81c | 2008-10-18 14:23:55 -0300 | [diff] [blame] | 2420 | tpacpi_disable_brightness_delay(); |
| 2421 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2422 | hotkey_dev_attributes = create_attr_set(13, NULL); |
| 2423 | if (!hotkey_dev_attributes) |
| 2424 | return -ENOMEM; |
| 2425 | res = add_many_to_attr_set(hotkey_dev_attributes, |
| 2426 | hotkey_attributes, |
| 2427 | ARRAY_SIZE(hotkey_attributes)); |
| 2428 | if (res) |
| 2429 | goto err_exit; |
| 2430 | |
| 2431 | /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
| 2432 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
| 2433 | for HKEY interface version 0x100 */ |
| 2434 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { |
| 2435 | if ((hkeyv >> 8) != 1) { |
| 2436 | printk(TPACPI_ERR "unknown version of the " |
| 2437 | "HKEY interface: 0x%x\n", hkeyv); |
| 2438 | printk(TPACPI_ERR "please report this to %s\n", |
| 2439 | TPACPI_MAIL); |
| 2440 | } else { |
| 2441 | /* |
| 2442 | * MHKV 0x100 in A31, R40, R40e, |
| 2443 | * T4x, X31, and later |
| 2444 | */ |
| 2445 | tp_features.hotkey_mask = 1; |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2446 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2447 | "firmware HKEY interface version: 0x%x\n", |
| 2448 | hkeyv); |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2449 | } |
| 2450 | } |
| 2451 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2452 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2453 | "hotkey masks are %s\n", |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2454 | str_supported(tp_features.hotkey_mask)); |
| 2455 | |
| 2456 | if (tp_features.hotkey_mask) { |
| 2457 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, |
| 2458 | "MHKA", "qd")) { |
| 2459 | printk(TPACPI_ERR |
| 2460 | "missing MHKA handler, " |
| 2461 | "please report this to %s\n", |
| 2462 | TPACPI_MAIL); |
| 2463 | /* FN+F12, FN+F4, FN+F3 */ |
| 2464 | hotkey_all_mask = 0x080cU; |
| 2465 | } |
| 2466 | } |
| 2467 | |
| 2468 | /* hotkey_source_mask *must* be zero for |
| 2469 | * the first hotkey_mask_get */ |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2470 | if (tp_features.hotkey_mask) { |
| 2471 | res = hotkey_mask_get(); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2472 | if (res) |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2473 | goto err_exit; |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2474 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2475 | hotkey_orig_mask = hotkey_mask; |
| 2476 | res = add_many_to_attr_set( |
| 2477 | hotkey_dev_attributes, |
| 2478 | hotkey_mask_attributes, |
| 2479 | ARRAY_SIZE(hotkey_mask_attributes)); |
| 2480 | if (res) |
| 2481 | goto err_exit; |
| 2482 | } |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 2483 | |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2484 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2485 | if (tp_features.hotkey_mask) { |
| 2486 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
| 2487 | & ~hotkey_all_mask; |
| 2488 | } else { |
| 2489 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; |
| 2490 | } |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2491 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2492 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2493 | "hotkey source mask 0x%08x, polling freq %d\n", |
| 2494 | hotkey_source_mask, hotkey_poll_freq); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2495 | #endif |
| 2496 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 2497 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 2498 | if (dbg_wlswemul) { |
| 2499 | tp_features.hotkey_wlsw = 1; |
| 2500 | printk(TPACPI_INFO |
| 2501 | "radio switch emulation enabled\n"); |
| 2502 | } else |
| 2503 | #endif |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2504 | /* Not all thinkpads have a hardware radio switch */ |
| 2505 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { |
| 2506 | tp_features.hotkey_wlsw = 1; |
| 2507 | printk(TPACPI_INFO |
| 2508 | "radio switch found; radios are %s\n", |
| 2509 | enabled(status, 0)); |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2510 | } |
| 2511 | if (tp_features.hotkey_wlsw) |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2512 | res = add_to_attr_set(hotkey_dev_attributes, |
| 2513 | &dev_attr_hotkey_radio_sw.attr); |
Henrique de Moraes Holschuh | 74941a6 | 2007-07-18 23:45:31 -0300 | [diff] [blame] | 2514 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2515 | /* For X41t, X60t, X61t Tablets... */ |
| 2516 | if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { |
| 2517 | tp_features.hotkey_tablet = 1; |
| 2518 | printk(TPACPI_INFO |
| 2519 | "possible tablet mode switch found; " |
| 2520 | "ThinkPad in %s mode\n", |
| 2521 | (status & TP_HOTKEY_TABLET_MASK)? |
| 2522 | "tablet" : "laptop"); |
| 2523 | res = add_to_attr_set(hotkey_dev_attributes, |
| 2524 | &dev_attr_hotkey_tablet_mode.attr); |
| 2525 | } |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 2526 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2527 | if (!res) |
| 2528 | res = register_attr_set_with_sysfs( |
| 2529 | hotkey_dev_attributes, |
| 2530 | &tpacpi_pdev->dev.kobj); |
| 2531 | if (res) |
| 2532 | goto err_exit; |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2533 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2534 | /* Set up key map */ |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2535 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2536 | hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, |
| 2537 | GFP_KERNEL); |
| 2538 | if (!hotkey_keycode_map) { |
| 2539 | printk(TPACPI_ERR |
| 2540 | "failed to allocate memory for key map\n"); |
| 2541 | res = -ENOMEM; |
| 2542 | goto err_exit; |
| 2543 | } |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2544 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2545 | if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2546 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2547 | "using Lenovo default hot key map\n"); |
| 2548 | memcpy(hotkey_keycode_map, &lenovo_keycode_map, |
| 2549 | TPACPI_HOTKEY_MAP_SIZE); |
| 2550 | } else { |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2551 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2552 | "using IBM default hot key map\n"); |
| 2553 | memcpy(hotkey_keycode_map, &ibm_keycode_map, |
| 2554 | TPACPI_HOTKEY_MAP_SIZE); |
| 2555 | } |
| 2556 | |
| 2557 | set_bit(EV_KEY, tpacpi_inputdev->evbit); |
| 2558 | set_bit(EV_MSC, tpacpi_inputdev->evbit); |
| 2559 | set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); |
| 2560 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
| 2561 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; |
| 2562 | tpacpi_inputdev->keycode = hotkey_keycode_map; |
| 2563 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { |
| 2564 | if (hotkey_keycode_map[i] != KEY_RESERVED) { |
| 2565 | set_bit(hotkey_keycode_map[i], |
| 2566 | tpacpi_inputdev->keybit); |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2567 | } else { |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2568 | if (i < sizeof(hotkey_reserved_mask)*8) |
| 2569 | hotkey_reserved_mask |= 1 << i; |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 2570 | } |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2571 | } |
| 2572 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2573 | if (tp_features.hotkey_wlsw) { |
| 2574 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
| 2575 | set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); |
| 2576 | } |
| 2577 | if (tp_features.hotkey_tablet) { |
| 2578 | set_bit(EV_SW, tpacpi_inputdev->evbit); |
| 2579 | set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 2580 | } |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2581 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2582 | /* Do not issue duplicate brightness change events to |
| 2583 | * userspace */ |
| 2584 | if (!tp_features.bright_acpimode) |
| 2585 | /* update bright_acpimode... */ |
| 2586 | tpacpi_check_std_acpi_brightness_support(); |
| 2587 | |
| 2588 | if (tp_features.bright_acpimode) { |
| 2589 | printk(TPACPI_INFO |
| 2590 | "This ThinkPad has standard ACPI backlight " |
| 2591 | "brightness control, supported by the ACPI " |
| 2592 | "video driver\n"); |
| 2593 | printk(TPACPI_NOTICE |
| 2594 | "Disabling thinkpad-acpi brightness events " |
| 2595 | "by default...\n"); |
| 2596 | |
| 2597 | /* The hotkey_reserved_mask change below is not |
| 2598 | * necessary while the keys are at KEY_RESERVED in the |
| 2599 | * default map, but better safe than sorry, leave it |
| 2600 | * here as a marker of what we have to do, especially |
| 2601 | * when we finally become able to set this at runtime |
| 2602 | * on response to X.org requests */ |
| 2603 | hotkey_reserved_mask |= |
| 2604 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) |
| 2605 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2606 | } |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2607 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2608 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2609 | "enabling firmware HKEY event interface...\n"); |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2610 | res = hotkey_status_set(true); |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2611 | if (res) { |
| 2612 | hotkey_exit(); |
| 2613 | return res; |
| 2614 | } |
| 2615 | res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) |
| 2616 | & ~hotkey_reserved_mask) |
| 2617 | | hotkey_orig_mask); |
| 2618 | if (res < 0 && res != -ENXIO) { |
| 2619 | hotkey_exit(); |
| 2620 | return res; |
| 2621 | } |
| 2622 | |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 2623 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
| 2624 | "legacy ibm/hotkey event reporting over procfs %s\n", |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2625 | (hotkey_report_mode < 2) ? |
| 2626 | "enabled" : "disabled"); |
| 2627 | |
| 2628 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
| 2629 | tpacpi_inputdev->close = &hotkey_inputdev_close; |
| 2630 | |
| 2631 | hotkey_poll_setup_safe(1); |
Henrique de Moraes Holschuh | 733e27c | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2632 | tpacpi_send_radiosw_update(); |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 2633 | tpacpi_input_send_tabletsw(); |
| 2634 | |
| 2635 | return 0; |
| 2636 | |
| 2637 | err_exit: |
| 2638 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); |
| 2639 | hotkey_dev_attributes = NULL; |
| 2640 | |
| 2641 | return (res < 0)? res : 1; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2642 | } |
| 2643 | |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2644 | static bool hotkey_notify_hotkey(const u32 hkey, |
| 2645 | bool *send_acpi_ev, |
| 2646 | bool *ignore_acpi_ev) |
| 2647 | { |
| 2648 | /* 0x1000-0x1FFF: key presses */ |
| 2649 | unsigned int scancode = hkey & 0xfff; |
| 2650 | *send_acpi_ev = true; |
| 2651 | *ignore_acpi_ev = false; |
| 2652 | |
| 2653 | if (scancode > 0 && scancode < 0x21) { |
| 2654 | scancode--; |
| 2655 | if (!(hotkey_source_mask & (1 << scancode))) { |
| 2656 | tpacpi_input_send_key(scancode); |
| 2657 | *send_acpi_ev = false; |
| 2658 | } else { |
| 2659 | *ignore_acpi_ev = true; |
| 2660 | } |
| 2661 | return true; |
| 2662 | } |
| 2663 | return false; |
| 2664 | } |
| 2665 | |
| 2666 | static bool hotkey_notify_wakeup(const u32 hkey, |
| 2667 | bool *send_acpi_ev, |
| 2668 | bool *ignore_acpi_ev) |
| 2669 | { |
| 2670 | /* 0x2000-0x2FFF: Wakeup reason */ |
| 2671 | *send_acpi_ev = true; |
| 2672 | *ignore_acpi_ev = false; |
| 2673 | |
| 2674 | switch (hkey) { |
| 2675 | case 0x2304: /* suspend, undock */ |
| 2676 | case 0x2404: /* hibernation, undock */ |
| 2677 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
| 2678 | *ignore_acpi_ev = true; |
| 2679 | break; |
| 2680 | |
| 2681 | case 0x2305: /* suspend, bay eject */ |
| 2682 | case 0x2405: /* hibernation, bay eject */ |
| 2683 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
| 2684 | *ignore_acpi_ev = true; |
| 2685 | break; |
| 2686 | |
Henrique de Moraes Holschuh | 106b4e6 | 2009-01-11 03:01:06 -0200 | [diff] [blame] | 2687 | case 0x2313: /* Battery on critical low level (S3) */ |
| 2688 | case 0x2413: /* Battery on critical low level (S4) */ |
| 2689 | printk(TPACPI_ALERT |
| 2690 | "EMERGENCY WAKEUP: battery almost empty\n"); |
| 2691 | /* how to auto-heal: */ |
| 2692 | /* 2313: woke up from S3, go to S4/S5 */ |
| 2693 | /* 2413: woke up from S4, go to S5 */ |
| 2694 | break; |
| 2695 | |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2696 | default: |
| 2697 | return false; |
| 2698 | } |
| 2699 | |
| 2700 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { |
| 2701 | printk(TPACPI_INFO |
| 2702 | "woke up due to a hot-unplug " |
| 2703 | "request...\n"); |
| 2704 | hotkey_wakeup_reason_notify_change(); |
| 2705 | } |
| 2706 | return true; |
| 2707 | } |
| 2708 | |
| 2709 | static bool hotkey_notify_usrevent(const u32 hkey, |
| 2710 | bool *send_acpi_ev, |
| 2711 | bool *ignore_acpi_ev) |
| 2712 | { |
| 2713 | /* 0x5000-0x5FFF: human interface helpers */ |
| 2714 | *send_acpi_ev = true; |
| 2715 | *ignore_acpi_ev = false; |
| 2716 | |
| 2717 | switch (hkey) { |
| 2718 | case 0x5010: /* Lenovo new BIOS: brightness changed */ |
| 2719 | case 0x500b: /* X61t: tablet pen inserted into bay */ |
| 2720 | case 0x500c: /* X61t: tablet pen removed from bay */ |
| 2721 | return true; |
| 2722 | |
| 2723 | case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ |
| 2724 | case 0x500a: /* X41t-X61t: swivel down (normal mode) */ |
| 2725 | tpacpi_input_send_tabletsw(); |
| 2726 | hotkey_tablet_mode_notify_change(); |
| 2727 | *send_acpi_ev = false; |
| 2728 | return true; |
| 2729 | |
| 2730 | case 0x5001: |
| 2731 | case 0x5002: |
| 2732 | /* LID switch events. Do not propagate */ |
| 2733 | *ignore_acpi_ev = true; |
| 2734 | return true; |
| 2735 | |
| 2736 | default: |
| 2737 | return false; |
| 2738 | } |
| 2739 | } |
| 2740 | |
Henrique de Moraes Holschuh | 106b4e6 | 2009-01-11 03:01:06 -0200 | [diff] [blame] | 2741 | static bool hotkey_notify_thermal(const u32 hkey, |
| 2742 | bool *send_acpi_ev, |
| 2743 | bool *ignore_acpi_ev) |
| 2744 | { |
| 2745 | /* 0x6000-0x6FFF: thermal alarms */ |
| 2746 | *send_acpi_ev = true; |
| 2747 | *ignore_acpi_ev = false; |
| 2748 | |
| 2749 | switch (hkey) { |
| 2750 | case 0x6011: |
| 2751 | printk(TPACPI_CRIT |
| 2752 | "THERMAL ALARM: battery is too hot!\n"); |
| 2753 | /* recommended action: warn user through gui */ |
| 2754 | return true; |
| 2755 | case 0x6012: |
| 2756 | printk(TPACPI_ALERT |
| 2757 | "THERMAL EMERGENCY: battery is extremely hot!\n"); |
| 2758 | /* recommended action: immediate sleep/hibernate */ |
| 2759 | return true; |
| 2760 | case 0x6021: |
| 2761 | printk(TPACPI_CRIT |
| 2762 | "THERMAL ALARM: " |
| 2763 | "a sensor reports something is too hot!\n"); |
| 2764 | /* recommended action: warn user through gui, that */ |
| 2765 | /* some internal component is too hot */ |
| 2766 | return true; |
| 2767 | case 0x6022: |
| 2768 | printk(TPACPI_ALERT |
| 2769 | "THERMAL EMERGENCY: " |
| 2770 | "a sensor reports something is extremely hot!\n"); |
| 2771 | /* recommended action: immediate sleep/hibernate */ |
| 2772 | return true; |
Henrique de Moraes Holschuh | 54926ce | 2009-01-11 03:01:09 -0200 | [diff] [blame] | 2773 | case 0x6030: |
| 2774 | printk(TPACPI_INFO |
| 2775 | "EC reports that Thermal Table has changed\n"); |
| 2776 | /* recommended action: do nothing, we don't have |
| 2777 | * Lenovo ATM information */ |
| 2778 | return true; |
Henrique de Moraes Holschuh | 106b4e6 | 2009-01-11 03:01:06 -0200 | [diff] [blame] | 2779 | default: |
| 2780 | printk(TPACPI_ALERT |
| 2781 | "THERMAL ALERT: unknown thermal alarm received\n"); |
| 2782 | return false; |
| 2783 | } |
| 2784 | } |
| 2785 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2786 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
| 2787 | { |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2788 | u32 hkey; |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2789 | bool send_acpi_ev; |
| 2790 | bool ignore_acpi_ev; |
| 2791 | bool known_ev; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2792 | |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2793 | if (event != 0x80) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2794 | printk(TPACPI_ERR |
| 2795 | "unknown HKEY notification event %d\n", event); |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2796 | /* forward it to userspace, maybe it knows how to handle it */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2797 | acpi_bus_generate_netlink_event( |
| 2798 | ibm->acpi->device->pnp.device_class, |
Kay Sievers | e0b36fc | 2009-01-11 03:00:59 -0200 | [diff] [blame] | 2799 | dev_name(&ibm->acpi->device->dev), |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2800 | event, 0); |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2801 | return; |
| 2802 | } |
| 2803 | |
| 2804 | while (1) { |
| 2805 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 2806 | printk(TPACPI_ERR "failed to retrieve HKEY event\n"); |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2807 | return; |
| 2808 | } |
| 2809 | |
| 2810 | if (hkey == 0) { |
| 2811 | /* queue empty */ |
| 2812 | return; |
| 2813 | } |
| 2814 | |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2815 | send_acpi_ev = true; |
| 2816 | ignore_acpi_ev = false; |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2817 | |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2818 | switch (hkey >> 12) { |
| 2819 | case 1: |
| 2820 | /* 0x1000-0x1FFF: key presses */ |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2821 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
| 2822 | &ignore_acpi_ev); |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2823 | break; |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2824 | case 2: |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2825 | /* 0x2000-0x2FFF: Wakeup reason */ |
| 2826 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, |
| 2827 | &ignore_acpi_ev); |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2828 | break; |
| 2829 | case 3: |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2830 | /* 0x3000-0x3FFF: bay-related wakeups */ |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2831 | if (hkey == 0x3003) { |
| 2832 | hotkey_autosleep_ack = 1; |
| 2833 | printk(TPACPI_INFO |
| 2834 | "bay ejected\n"); |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2835 | hotkey_wakeup_hotunplug_complete_notify_change(); |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2836 | known_ev = true; |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2837 | } else { |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2838 | known_ev = false; |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2839 | } |
| 2840 | break; |
| 2841 | case 4: |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2842 | /* 0x4000-0x4FFF: dock-related wakeups */ |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2843 | if (hkey == 0x4003) { |
| 2844 | hotkey_autosleep_ack = 1; |
| 2845 | printk(TPACPI_INFO |
| 2846 | "undocked\n"); |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2847 | hotkey_wakeup_hotunplug_complete_notify_change(); |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2848 | known_ev = true; |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2849 | } else { |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2850 | known_ev = false; |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2851 | } |
| 2852 | break; |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2853 | case 5: |
Henrique de Moraes Holschuh | d1edb2b | 2008-01-08 13:02:53 -0200 | [diff] [blame] | 2854 | /* 0x5000-0x5FFF: human interface helpers */ |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2855 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
| 2856 | &ignore_acpi_ev); |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2857 | break; |
Henrique de Moraes Holschuh | 106b4e6 | 2009-01-11 03:01:06 -0200 | [diff] [blame] | 2858 | case 6: |
| 2859 | /* 0x6000-0x6FFF: thermal alarms */ |
| 2860 | known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev, |
| 2861 | &ignore_acpi_ev); |
| 2862 | break; |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2863 | case 7: |
| 2864 | /* 0x7000-0x7FFF: misc */ |
| 2865 | if (tp_features.hotkey_wlsw && hkey == 0x7000) { |
Henrique de Moraes Holschuh | 733e27c | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2866 | tpacpi_send_radiosw_update(); |
Henrique de Moraes Holschuh | 3b64b51 | 2008-01-08 13:02:51 -0200 | [diff] [blame] | 2867 | send_acpi_ev = 0; |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2868 | known_ev = true; |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2869 | break; |
| 2870 | } |
| 2871 | /* fallthrough to default */ |
| 2872 | default: |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2873 | known_ev = false; |
Henrique de Moraes Holschuh | 3b64b51 | 2008-01-08 13:02:51 -0200 | [diff] [blame] | 2874 | } |
Henrique de Moraes Holschuh | 3827e7a | 2009-01-11 03:01:05 -0200 | [diff] [blame] | 2875 | if (!known_ev) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2876 | printk(TPACPI_NOTICE |
| 2877 | "unhandled HKEY event 0x%04x\n", hkey); |
Henrique de Moraes Holschuh | cb42935 | 2009-01-11 03:01:07 -0200 | [diff] [blame] | 2878 | printk(TPACPI_NOTICE |
| 2879 | "please report the conditions when this " |
| 2880 | "event happened to %s\n", TPACPI_MAIL); |
Henrique de Moraes Holschuh | 6a38abb | 2007-07-18 23:45:35 -0300 | [diff] [blame] | 2881 | } |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2882 | |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2883 | /* Legacy events */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2884 | if (!ignore_acpi_ev && |
| 2885 | (send_acpi_ev || hotkey_report_mode < 2)) { |
| 2886 | acpi_bus_generate_proc_event(ibm->acpi->device, |
| 2887 | event, hkey); |
Henrique de Moraes Holschuh | 3e5ce91 | 2007-09-23 11:39:05 -0300 | [diff] [blame] | 2888 | } |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 2889 | |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2890 | /* netlink events */ |
Henrique de Moraes Holschuh | 3e5ce91 | 2007-09-23 11:39:05 -0300 | [diff] [blame] | 2891 | if (!ignore_acpi_ev && send_acpi_ev) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2892 | acpi_bus_generate_netlink_event( |
| 2893 | ibm->acpi->device->pnp.device_class, |
Kay Sievers | e0b36fc | 2009-01-11 03:00:59 -0200 | [diff] [blame] | 2894 | dev_name(&ibm->acpi->device->dev), |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2895 | event, hkey); |
Henrique de Moraes Holschuh | 3eea123 | 2007-09-23 11:39:04 -0300 | [diff] [blame] | 2896 | } |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 2897 | } |
| 2898 | } |
| 2899 | |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 2900 | static void hotkey_suspend(pm_message_t state) |
| 2901 | { |
| 2902 | /* Do these on suspend, we get the events on early resume! */ |
| 2903 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; |
| 2904 | hotkey_autosleep_ack = 0; |
| 2905 | } |
| 2906 | |
Henrique de Moraes Holschuh | 5c29d58 | 2007-07-18 23:45:38 -0300 | [diff] [blame] | 2907 | static void hotkey_resume(void) |
| 2908 | { |
Henrique de Moraes Holschuh | d64c81c | 2008-10-18 14:23:55 -0300 | [diff] [blame] | 2909 | tpacpi_disable_brightness_delay(); |
| 2910 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 2911 | if (hotkey_mask_get()) |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 2912 | printk(TPACPI_ERR |
| 2913 | "error while trying to read hot key mask " |
| 2914 | "from firmware\n"); |
Henrique de Moraes Holschuh | 733e27c | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 2915 | tpacpi_send_radiosw_update(); |
Henrique de Moraes Holschuh | 6c231bd | 2008-02-16 02:17:58 -0200 | [diff] [blame] | 2916 | hotkey_tablet_mode_notify_change(); |
Henrique de Moraes Holschuh | 50ebec0 | 2008-01-08 13:02:55 -0200 | [diff] [blame] | 2917 | hotkey_wakeup_reason_notify_change(); |
| 2918 | hotkey_wakeup_hotunplug_complete_notify_change(); |
Henrique de Moraes Holschuh | 01e88f2 | 2008-01-08 13:02:41 -0200 | [diff] [blame] | 2919 | hotkey_poll_setup_safe(0); |
Henrique de Moraes Holschuh | 5c29d58 | 2007-07-18 23:45:38 -0300 | [diff] [blame] | 2920 | } |
| 2921 | |
Henrique de Moraes Holschuh | a041642 | 2007-04-27 22:00:16 -0300 | [diff] [blame] | 2922 | /* procfs -------------------------------------------------------------- */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 2923 | static int hotkey_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2924 | { |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 2925 | int res, status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2926 | int len = 0; |
| 2927 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 2928 | if (!tp_features.hotkey) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 2929 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 2930 | return len; |
| 2931 | } |
| 2932 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 2933 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | fc589a3 | 2007-10-30 17:46:24 -0200 | [diff] [blame] | 2934 | return -ERESTARTSYS; |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 2935 | res = hotkey_status_get(&status); |
| 2936 | if (!res) |
| 2937 | res = hotkey_mask_get(); |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 2938 | mutex_unlock(&hotkey_mutex); |
Henrique de Moraes Holschuh | b86c472 | 2007-04-21 11:08:39 -0300 | [diff] [blame] | 2939 | if (res) |
| 2940 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2941 | |
| 2942 | len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 2943 | if (tp_features.hotkey_mask) { |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 2944 | len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2945 | len += sprintf(p + len, |
| 2946 | "commands:\tenable, disable, reset, <mask>\n"); |
| 2947 | } else { |
| 2948 | len += sprintf(p + len, "mask:\t\tnot supported\n"); |
| 2949 | len += sprintf(p + len, "commands:\tenable, disable, reset\n"); |
| 2950 | } |
| 2951 | |
| 2952 | return len; |
| 2953 | } |
| 2954 | |
Henrique de Moraes Holschuh | 406e988 | 2009-04-14 02:44:10 +0000 | [diff] [blame] | 2955 | static void hotkey_enabledisable_warn(bool enable) |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2956 | { |
| 2957 | tpacpi_log_usertask("procfs hotkey enable/disable"); |
Henrique de Moraes Holschuh | 406e988 | 2009-04-14 02:44:10 +0000 | [diff] [blame] | 2958 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
| 2959 | TPACPI_WARN |
| 2960 | "hotkey enable/disable functionality has been " |
| 2961 | "removed from the driver. Hotkeys are always " |
| 2962 | "enabled\n")) |
| 2963 | printk(TPACPI_ERR |
| 2964 | "Please remove the hotkey=enable module " |
| 2965 | "parameter, it is deprecated. Hotkeys are always " |
| 2966 | "enabled\n"); |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2967 | } |
| 2968 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 2969 | static int hotkey_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | { |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2971 | int res; |
Henrique de Moraes Holschuh | ae92bd1 | 2007-07-18 23:45:29 -0300 | [diff] [blame] | 2972 | u32 mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2973 | char *cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 2975 | if (!tp_features.hotkey) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2976 | return -ENODEV; |
| 2977 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 2978 | if (mutex_lock_killable(&hotkey_mutex)) |
Henrique de Moraes Holschuh | fc589a3 | 2007-10-30 17:46:24 -0200 | [diff] [blame] | 2979 | return -ERESTARTSYS; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 2980 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 2981 | mask = hotkey_mask; |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 2982 | |
| 2983 | res = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2984 | while ((cmd = next_cmd(&buf))) { |
| 2985 | if (strlencmp(cmd, "enable") == 0) { |
Henrique de Moraes Holschuh | 406e988 | 2009-04-14 02:44:10 +0000 | [diff] [blame] | 2986 | hotkey_enabledisable_warn(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2987 | } else if (strlencmp(cmd, "disable") == 0) { |
Henrique de Moraes Holschuh | 406e988 | 2009-04-14 02:44:10 +0000 | [diff] [blame] | 2988 | hotkey_enabledisable_warn(0); |
Henrique de Moraes Holschuh | 2586d56 | 2009-04-04 04:25:48 +0000 | [diff] [blame] | 2989 | res = -EPERM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2990 | } else if (strlencmp(cmd, "reset") == 0) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 2991 | mask = hotkey_orig_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2992 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
| 2993 | /* mask set */ |
| 2994 | } else if (sscanf(cmd, "%x", &mask) == 1) { |
| 2995 | /* mask set */ |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 2996 | } else { |
| 2997 | res = -EINVAL; |
| 2998 | goto errexit; |
| 2999 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3000 | } |
Henrique de Moraes Holschuh | 56e2c20 | 2009-04-04 04:25:51 +0000 | [diff] [blame] | 3001 | |
| 3002 | if (!res) |
| 3003 | tpacpi_disclose_usertask("procfs hotkey", |
| 3004 | "set mask to 0x%08x\n", mask); |
| 3005 | |
Henrique de Moraes Holschuh | b2c985e | 2008-01-08 13:02:39 -0200 | [diff] [blame] | 3006 | if (!res && mask != hotkey_mask) |
| 3007 | res = hotkey_mask_set(mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3008 | |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 3009 | errexit: |
| 3010 | mutex_unlock(&hotkey_mutex); |
| 3011 | return res; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3012 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3013 | |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 3014 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3015 | {TPACPI_ACPI_HKEY_HID, 0}, |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 3016 | {"", 0}, |
| 3017 | }; |
| 3018 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 3019 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 3020 | .hid = ibm_htk_device_ids, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3021 | .notify = hotkey_notify, |
| 3022 | .handle = &hkey_handle, |
| 3023 | .type = ACPI_DEVICE_NOTIFY, |
| 3024 | }; |
| 3025 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 3026 | static struct ibm_struct hotkey_driver_data = { |
| 3027 | .name = "hotkey", |
| 3028 | .read = hotkey_read, |
| 3029 | .write = hotkey_write, |
| 3030 | .exit = hotkey_exit, |
Henrique de Moraes Holschuh | 5c29d58 | 2007-07-18 23:45:38 -0300 | [diff] [blame] | 3031 | .resume = hotkey_resume, |
Henrique de Moraes Holschuh | a713b4d | 2008-01-08 13:02:52 -0200 | [diff] [blame] | 3032 | .suspend = hotkey_suspend, |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 3033 | .acpi = &ibm_hotkey_acpidriver, |
| 3034 | }; |
| 3035 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3036 | /************************************************************************* |
| 3037 | * Bluetooth subdriver |
| 3038 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3039 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3040 | enum { |
| 3041 | /* ACPI GBDC/SBDC bits */ |
| 3042 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ |
| 3043 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3044 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
| 3045 | off / last state */ |
| 3046 | }; |
| 3047 | |
| 3048 | enum { |
| 3049 | /* ACPI \BLTH commands */ |
| 3050 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ |
| 3051 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ |
| 3052 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ |
| 3053 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ |
| 3054 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3055 | }; |
| 3056 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3057 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
| 3058 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3059 | static struct rfkill *tpacpi_bluetooth_rfkill; |
| 3060 | |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3061 | static void bluetooth_suspend(pm_message_t state) |
| 3062 | { |
| 3063 | /* Try to make sure radio will resume powered off */ |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3064 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", |
| 3065 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME)) |
| 3066 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3067 | "bluetooth power down on resume request failed\n"); |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3068 | } |
| 3069 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3070 | static int bluetooth_get_radiosw(void) |
| 3071 | { |
| 3072 | int status; |
| 3073 | |
| 3074 | if (!tp_features.bluetooth) |
| 3075 | return -ENODEV; |
| 3076 | |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3077 | /* WLSW overrides bluetooth in firmware/hardware, reflect that */ |
| 3078 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3079 | return RFKILL_STATE_HARD_BLOCKED; |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3080 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3081 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3082 | if (dbg_bluetoothemul) |
| 3083 | return (tpacpi_bluetooth_emulstate) ? |
| 3084 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
| 3085 | #endif |
| 3086 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3087 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
| 3088 | return -EIO; |
| 3089 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3090 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
| 3091 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3092 | } |
| 3093 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3094 | static void bluetooth_update_rfk(void) |
| 3095 | { |
| 3096 | int status; |
| 3097 | |
| 3098 | if (!tpacpi_bluetooth_rfkill) |
| 3099 | return; |
| 3100 | |
| 3101 | status = bluetooth_get_radiosw(); |
| 3102 | if (status < 0) |
| 3103 | return; |
| 3104 | rfkill_force_state(tpacpi_bluetooth_rfkill, status); |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3105 | |
| 3106 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3107 | "forced rfkill state to %d\n", |
| 3108 | status); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3109 | } |
| 3110 | |
| 3111 | static int bluetooth_set_radiosw(int radio_on, int update_rfk) |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3112 | { |
| 3113 | int status; |
| 3114 | |
| 3115 | if (!tp_features.bluetooth) |
| 3116 | return -ENODEV; |
| 3117 | |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3118 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
| 3119 | * reason to risk weird behaviour. */ |
| 3120 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status |
| 3121 | && radio_on) |
| 3122 | return -EPERM; |
| 3123 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3124 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3125 | "will %s bluetooth\n", radio_on ? "enable" : "disable"); |
| 3126 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3127 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3128 | if (dbg_bluetoothemul) { |
| 3129 | tpacpi_bluetooth_emulstate = !!radio_on; |
| 3130 | if (update_rfk) |
| 3131 | bluetooth_update_rfk(); |
| 3132 | return 0; |
| 3133 | } |
| 3134 | #endif |
| 3135 | |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3136 | /* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */ |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3137 | if (radio_on) |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3138 | status = TP_ACPI_BLUETOOTH_RADIOSSW; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3139 | else |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3140 | status = 0; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3141 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
| 3142 | return -EIO; |
| 3143 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3144 | if (update_rfk) |
| 3145 | bluetooth_update_rfk(); |
| 3146 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3147 | return 0; |
| 3148 | } |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3149 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3150 | /* sysfs bluetooth enable ---------------------------------------------- */ |
| 3151 | static ssize_t bluetooth_enable_show(struct device *dev, |
| 3152 | struct device_attribute *attr, |
| 3153 | char *buf) |
| 3154 | { |
| 3155 | int status; |
| 3156 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 3157 | printk_deprecated_rfkill_attribute("bluetooth_enable"); |
| 3158 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3159 | status = bluetooth_get_radiosw(); |
| 3160 | if (status < 0) |
| 3161 | return status; |
| 3162 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3163 | return snprintf(buf, PAGE_SIZE, "%d\n", |
| 3164 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3165 | } |
| 3166 | |
| 3167 | static ssize_t bluetooth_enable_store(struct device *dev, |
| 3168 | struct device_attribute *attr, |
| 3169 | const char *buf, size_t count) |
| 3170 | { |
| 3171 | unsigned long t; |
| 3172 | int res; |
| 3173 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 3174 | printk_deprecated_rfkill_attribute("bluetooth_enable"); |
| 3175 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3176 | if (parse_strtoul(buf, 1, &t)) |
| 3177 | return -EINVAL; |
| 3178 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3179 | tpacpi_disclose_usertask("bluetooth_enable", "set to %ld\n", t); |
| 3180 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3181 | res = bluetooth_set_radiosw(t, 1); |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3182 | |
| 3183 | return (res) ? res : count; |
| 3184 | } |
| 3185 | |
| 3186 | static struct device_attribute dev_attr_bluetooth_enable = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 3187 | __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3188 | bluetooth_enable_show, bluetooth_enable_store); |
| 3189 | |
| 3190 | /* --------------------------------------------------------------------- */ |
| 3191 | |
| 3192 | static struct attribute *bluetooth_attributes[] = { |
| 3193 | &dev_attr_bluetooth_enable.attr, |
| 3194 | NULL |
| 3195 | }; |
| 3196 | |
| 3197 | static const struct attribute_group bluetooth_attr_group = { |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3198 | .attrs = bluetooth_attributes, |
| 3199 | }; |
| 3200 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3201 | static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) |
| 3202 | { |
| 3203 | int bts = bluetooth_get_radiosw(); |
| 3204 | |
| 3205 | if (bts < 0) |
| 3206 | return bts; |
| 3207 | |
| 3208 | *state = bts; |
| 3209 | return 0; |
| 3210 | } |
| 3211 | |
| 3212 | static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) |
| 3213 | { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3214 | dbg_printk(TPACPI_DBG_RFKILL, |
| 3215 | "request to change radio state to %d\n", state); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3216 | return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); |
| 3217 | } |
| 3218 | |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3219 | static void bluetooth_shutdown(void) |
| 3220 | { |
| 3221 | /* Order firmware to save current state to NVRAM */ |
| 3222 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", |
| 3223 | TP_ACPI_BLTH_SAVE_STATE)) |
| 3224 | printk(TPACPI_NOTICE |
| 3225 | "failed to save bluetooth state to NVRAM\n"); |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3226 | else |
| 3227 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3228 | "bluestooth state saved to NVRAM\n"); |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3229 | } |
| 3230 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3231 | static void bluetooth_exit(void) |
| 3232 | { |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3233 | bluetooth_shutdown(); |
| 3234 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3235 | if (tpacpi_bluetooth_rfkill) |
| 3236 | rfkill_unregister(tpacpi_bluetooth_rfkill); |
| 3237 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3238 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
| 3239 | &bluetooth_attr_group); |
| 3240 | } |
| 3241 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3242 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3243 | { |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3244 | int res; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3245 | int status = 0; |
| 3246 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3247 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3248 | "initializing bluetooth subdriver\n"); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3249 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3250 | TPACPI_ACPIHANDLE_INIT(hkey); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 3251 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3252 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
| 3253 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3254 | tp_features.bluetooth = hkey_handle && |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3255 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3256 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3257 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3258 | "bluetooth is %s, status 0x%02x\n", |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3259 | str_supported(tp_features.bluetooth), |
| 3260 | status); |
| 3261 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3262 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3263 | if (dbg_bluetoothemul) { |
| 3264 | tp_features.bluetooth = 1; |
| 3265 | printk(TPACPI_INFO |
| 3266 | "bluetooth switch emulation enabled\n"); |
| 3267 | } else |
| 3268 | #endif |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3269 | if (tp_features.bluetooth && |
| 3270 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { |
| 3271 | /* no bluetooth hardware present in system */ |
| 3272 | tp_features.bluetooth = 0; |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3273 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3274 | "bluetooth hardware not installed\n"); |
| 3275 | } |
| 3276 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3277 | if (!tp_features.bluetooth) |
| 3278 | return 1; |
| 3279 | |
| 3280 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3281 | &bluetooth_attr_group); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3282 | if (res) |
| 3283 | return res; |
| 3284 | |
| 3285 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
| 3286 | &tpacpi_bluetooth_rfkill, |
| 3287 | RFKILL_TYPE_BLUETOOTH, |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3288 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3289 | true, |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3290 | tpacpi_bluetooth_rfk_set, |
| 3291 | tpacpi_bluetooth_rfk_get); |
| 3292 | if (res) { |
| 3293 | bluetooth_exit(); |
| 3294 | return res; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3295 | } |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3296 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3297 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3298 | } |
| 3299 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3300 | /* procfs -------------------------------------------------------------- */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3301 | static int bluetooth_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3302 | { |
| 3303 | int len = 0; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3304 | int status = bluetooth_get_radiosw(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3305 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3306 | if (!tp_features.bluetooth) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3307 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3308 | else { |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3309 | len += sprintf(p + len, "status:\t\t%s\n", |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3310 | (status == RFKILL_STATE_UNBLOCKED) ? |
| 3311 | "enabled" : "disabled"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3312 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
| 3313 | } |
| 3314 | |
| 3315 | return len; |
| 3316 | } |
| 3317 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3318 | static int bluetooth_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3319 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3320 | char *cmd; |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3321 | int state = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3322 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3323 | if (!tp_features.bluetooth) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3324 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3325 | |
| 3326 | while ((cmd = next_cmd(&buf))) { |
| 3327 | if (strlencmp(cmd, "enable") == 0) { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3328 | state = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3329 | } else if (strlencmp(cmd, "disable") == 0) { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3330 | state = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3331 | } else |
| 3332 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3333 | } |
| 3334 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3335 | if (state != -1) { |
| 3336 | tpacpi_disclose_usertask("procfs bluetooth", |
| 3337 | "attempt to %s\n", |
| 3338 | state ? "enable" : "disable"); |
| 3339 | bluetooth_set_radiosw(state, 1); |
| 3340 | } |
| 3341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3342 | return 0; |
| 3343 | } |
| 3344 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3345 | static struct ibm_struct bluetooth_driver_data = { |
| 3346 | .name = "bluetooth", |
| 3347 | .read = bluetooth_read, |
| 3348 | .write = bluetooth_write, |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3349 | .exit = bluetooth_exit, |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3350 | .suspend = bluetooth_suspend, |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3351 | .shutdown = bluetooth_shutdown, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3352 | }; |
| 3353 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3354 | /************************************************************************* |
| 3355 | * Wan subdriver |
| 3356 | */ |
| 3357 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3358 | enum { |
| 3359 | /* ACPI GWAN/SWAN bits */ |
| 3360 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ |
| 3361 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3362 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
| 3363 | off / last state */ |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3364 | }; |
| 3365 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3366 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
| 3367 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3368 | static struct rfkill *tpacpi_wan_rfkill; |
| 3369 | |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3370 | static void wan_suspend(pm_message_t state) |
| 3371 | { |
| 3372 | /* Try to make sure radio will resume powered off */ |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3373 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd", |
| 3374 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME)) |
| 3375 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3376 | "WWAN power down on resume request failed\n"); |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3377 | } |
| 3378 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3379 | static int wan_get_radiosw(void) |
| 3380 | { |
| 3381 | int status; |
| 3382 | |
| 3383 | if (!tp_features.wan) |
| 3384 | return -ENODEV; |
| 3385 | |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3386 | /* WLSW overrides WWAN in firmware/hardware, reflect that */ |
| 3387 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3388 | return RFKILL_STATE_HARD_BLOCKED; |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3389 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3390 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3391 | if (dbg_wwanemul) |
| 3392 | return (tpacpi_wwan_emulstate) ? |
| 3393 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
| 3394 | #endif |
| 3395 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3396 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
| 3397 | return -EIO; |
| 3398 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3399 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
| 3400 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3401 | } |
| 3402 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3403 | static void wan_update_rfk(void) |
| 3404 | { |
| 3405 | int status; |
| 3406 | |
| 3407 | if (!tpacpi_wan_rfkill) |
| 3408 | return; |
| 3409 | |
| 3410 | status = wan_get_radiosw(); |
| 3411 | if (status < 0) |
| 3412 | return; |
| 3413 | rfkill_force_state(tpacpi_wan_rfkill, status); |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3414 | |
| 3415 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3416 | "forced rfkill state to %d\n", |
| 3417 | status); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3418 | } |
| 3419 | |
| 3420 | static int wan_set_radiosw(int radio_on, int update_rfk) |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3421 | { |
| 3422 | int status; |
| 3423 | |
| 3424 | if (!tp_features.wan) |
| 3425 | return -ENODEV; |
| 3426 | |
Henrique de Moraes Holschuh | 133ec3b | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3427 | /* WLSW overrides bluetooth in firmware/hardware, but there is no |
| 3428 | * reason to risk weird behaviour. */ |
| 3429 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status |
| 3430 | && radio_on) |
| 3431 | return -EPERM; |
| 3432 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3433 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3434 | "will %s WWAN\n", radio_on ? "enable" : "disable"); |
| 3435 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3436 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3437 | if (dbg_wwanemul) { |
| 3438 | tpacpi_wwan_emulstate = !!radio_on; |
| 3439 | if (update_rfk) |
| 3440 | wan_update_rfk(); |
| 3441 | return 0; |
| 3442 | } |
| 3443 | #endif |
| 3444 | |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3445 | /* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */ |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3446 | if (radio_on) |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3447 | status = TP_ACPI_WANCARD_RADIOSSW; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3448 | else |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3449 | status = 0; |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3450 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
| 3451 | return -EIO; |
| 3452 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3453 | if (update_rfk) |
| 3454 | wan_update_rfk(); |
| 3455 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3456 | return 0; |
| 3457 | } |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3458 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3459 | /* sysfs wan enable ---------------------------------------------------- */ |
| 3460 | static ssize_t wan_enable_show(struct device *dev, |
| 3461 | struct device_attribute *attr, |
| 3462 | char *buf) |
| 3463 | { |
| 3464 | int status; |
| 3465 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 3466 | printk_deprecated_rfkill_attribute("wwan_enable"); |
| 3467 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3468 | status = wan_get_radiosw(); |
| 3469 | if (status < 0) |
| 3470 | return status; |
| 3471 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3472 | return snprintf(buf, PAGE_SIZE, "%d\n", |
| 3473 | (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3474 | } |
| 3475 | |
| 3476 | static ssize_t wan_enable_store(struct device *dev, |
| 3477 | struct device_attribute *attr, |
| 3478 | const char *buf, size_t count) |
| 3479 | { |
| 3480 | unsigned long t; |
| 3481 | int res; |
| 3482 | |
Henrique de Moraes Holschuh | 73a94d8 | 2009-04-04 04:25:47 +0000 | [diff] [blame] | 3483 | printk_deprecated_rfkill_attribute("wwan_enable"); |
| 3484 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3485 | if (parse_strtoul(buf, 1, &t)) |
| 3486 | return -EINVAL; |
| 3487 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3488 | tpacpi_disclose_usertask("wwan_enable", "set to %ld\n", t); |
| 3489 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3490 | res = wan_set_radiosw(t, 1); |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3491 | |
| 3492 | return (res) ? res : count; |
| 3493 | } |
| 3494 | |
| 3495 | static struct device_attribute dev_attr_wan_enable = |
Henrique de Moraes Holschuh | cc4c24e | 2007-05-30 20:50:14 -0300 | [diff] [blame] | 3496 | __ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3497 | wan_enable_show, wan_enable_store); |
| 3498 | |
| 3499 | /* --------------------------------------------------------------------- */ |
| 3500 | |
| 3501 | static struct attribute *wan_attributes[] = { |
| 3502 | &dev_attr_wan_enable.attr, |
| 3503 | NULL |
| 3504 | }; |
| 3505 | |
| 3506 | static const struct attribute_group wan_attr_group = { |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3507 | .attrs = wan_attributes, |
| 3508 | }; |
| 3509 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3510 | static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) |
| 3511 | { |
| 3512 | int wans = wan_get_radiosw(); |
| 3513 | |
| 3514 | if (wans < 0) |
| 3515 | return wans; |
| 3516 | |
| 3517 | *state = wans; |
| 3518 | return 0; |
| 3519 | } |
| 3520 | |
| 3521 | static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) |
| 3522 | { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3523 | dbg_printk(TPACPI_DBG_RFKILL, |
| 3524 | "request to change radio state to %d\n", state); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3525 | return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); |
| 3526 | } |
| 3527 | |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3528 | static void wan_shutdown(void) |
| 3529 | { |
| 3530 | /* Order firmware to save current state to NVRAM */ |
| 3531 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", |
| 3532 | TP_ACPI_WGSV_SAVE_STATE)) |
| 3533 | printk(TPACPI_NOTICE |
| 3534 | "failed to save WWAN state to NVRAM\n"); |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3535 | else |
| 3536 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3537 | "WWAN state saved to NVRAM\n"); |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3538 | } |
| 3539 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3540 | static void wan_exit(void) |
| 3541 | { |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3542 | wan_shutdown(); |
| 3543 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3544 | if (tpacpi_wan_rfkill) |
| 3545 | rfkill_unregister(tpacpi_wan_rfkill); |
| 3546 | |
Henrique de Moraes Holschuh | 07431ec | 2008-07-21 09:15:50 -0300 | [diff] [blame] | 3547 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
| 3548 | &wan_attr_group); |
| 3549 | } |
| 3550 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3551 | static int __init wan_init(struct ibm_init_struct *iibm) |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3552 | { |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3553 | int res; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3554 | int status = 0; |
| 3555 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3556 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3557 | "initializing wan subdriver\n"); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3558 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3559 | TPACPI_ACPIHANDLE_INIT(hkey); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 3560 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3561 | tp_features.wan = hkey_handle && |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3562 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3563 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3564 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3565 | "wan is %s, status 0x%02x\n", |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3566 | str_supported(tp_features.wan), |
| 3567 | status); |
| 3568 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 3569 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3570 | if (dbg_wwanemul) { |
| 3571 | tp_features.wan = 1; |
| 3572 | printk(TPACPI_INFO |
| 3573 | "wwan switch emulation enabled\n"); |
| 3574 | } else |
| 3575 | #endif |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3576 | if (tp_features.wan && |
| 3577 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { |
| 3578 | /* no wan hardware present in system */ |
| 3579 | tp_features.wan = 0; |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3580 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3581 | "wan hardware not installed\n"); |
| 3582 | } |
| 3583 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3584 | if (!tp_features.wan) |
| 3585 | return 1; |
| 3586 | |
| 3587 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 3a87208 | 2008-07-21 09:15:49 -0300 | [diff] [blame] | 3588 | &wan_attr_group); |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3589 | if (res) |
| 3590 | return res; |
| 3591 | |
| 3592 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
| 3593 | &tpacpi_wan_rfkill, |
| 3594 | RFKILL_TYPE_WWAN, |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3595 | TPACPI_RFK_WWAN_SW_NAME, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3596 | true, |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3597 | tpacpi_wan_rfk_set, |
| 3598 | tpacpi_wan_rfk_get); |
| 3599 | if (res) { |
| 3600 | wan_exit(); |
| 3601 | return res; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3602 | } |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3603 | |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3604 | return 0; |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3605 | } |
| 3606 | |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3607 | /* procfs -------------------------------------------------------------- */ |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3608 | static int wan_read(char *p) |
| 3609 | { |
| 3610 | int len = 0; |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3611 | int status = wan_get_radiosw(); |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3612 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3613 | tpacpi_disclose_usertask("procfs wan", "read"); |
| 3614 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3615 | if (!tp_features.wan) |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3616 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3617 | else { |
Henrique de Moraes Holschuh | d6fdd1e | 2007-04-21 11:08:40 -0300 | [diff] [blame] | 3618 | len += sprintf(p + len, "status:\t\t%s\n", |
Henrique de Moraes Holschuh | 0e74dc2 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 3619 | (status == RFKILL_STATE_UNBLOCKED) ? |
| 3620 | "enabled" : "disabled"); |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3621 | len += sprintf(p + len, "commands:\tenable, disable\n"); |
| 3622 | } |
| 3623 | |
| 3624 | return len; |
| 3625 | } |
| 3626 | |
| 3627 | static int wan_write(char *buf) |
| 3628 | { |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3629 | char *cmd; |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3630 | int state = -1; |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3631 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 3632 | if (!tp_features.wan) |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3633 | return -ENODEV; |
| 3634 | |
| 3635 | while ((cmd = next_cmd(&buf))) { |
| 3636 | if (strlencmp(cmd, "enable") == 0) { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3637 | state = 1; |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3638 | } else if (strlencmp(cmd, "disable") == 0) { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3639 | state = 0; |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3640 | } else |
| 3641 | return -EINVAL; |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3642 | } |
| 3643 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3644 | if (state != -1) { |
| 3645 | tpacpi_disclose_usertask("procfs wan", |
| 3646 | "attempt to %s\n", |
| 3647 | state ? "enable" : "disable"); |
| 3648 | wan_set_radiosw(state, 1); |
| 3649 | } |
| 3650 | |
Jeremy Fitzhardinge | 42adb53 | 2006-06-01 17:41:00 -0400 | [diff] [blame] | 3651 | return 0; |
| 3652 | } |
| 3653 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3654 | static struct ibm_struct wan_driver_data = { |
| 3655 | .name = "wan", |
| 3656 | .read = wan_read, |
| 3657 | .write = wan_write, |
Henrique de Moraes Holschuh | d3a6ade | 2007-04-27 22:00:17 -0300 | [diff] [blame] | 3658 | .exit = wan_exit, |
Henrique de Moraes Holschuh | 153f822 | 2009-01-11 03:01:01 -0200 | [diff] [blame] | 3659 | .suspend = wan_suspend, |
Henrique de Moraes Holschuh | 90d9d3c | 2009-01-11 03:01:02 -0200 | [diff] [blame] | 3660 | .shutdown = wan_shutdown, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3661 | }; |
| 3662 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3663 | /************************************************************************* |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3664 | * UWB subdriver |
| 3665 | */ |
| 3666 | |
| 3667 | enum { |
| 3668 | /* ACPI GUWB/SUWB bits */ |
| 3669 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ |
| 3670 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ |
| 3671 | }; |
| 3672 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3673 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
| 3674 | |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3675 | static struct rfkill *tpacpi_uwb_rfkill; |
| 3676 | |
| 3677 | static int uwb_get_radiosw(void) |
| 3678 | { |
| 3679 | int status; |
| 3680 | |
| 3681 | if (!tp_features.uwb) |
| 3682 | return -ENODEV; |
| 3683 | |
| 3684 | /* WLSW overrides UWB in firmware/hardware, reflect that */ |
| 3685 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) |
| 3686 | return RFKILL_STATE_HARD_BLOCKED; |
| 3687 | |
| 3688 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3689 | if (dbg_uwbemul) |
| 3690 | return (tpacpi_uwb_emulstate) ? |
| 3691 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
| 3692 | #endif |
| 3693 | |
| 3694 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) |
| 3695 | return -EIO; |
| 3696 | |
| 3697 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? |
| 3698 | RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; |
| 3699 | } |
| 3700 | |
| 3701 | static void uwb_update_rfk(void) |
| 3702 | { |
| 3703 | int status; |
| 3704 | |
| 3705 | if (!tpacpi_uwb_rfkill) |
| 3706 | return; |
| 3707 | |
| 3708 | status = uwb_get_radiosw(); |
| 3709 | if (status < 0) |
| 3710 | return; |
| 3711 | rfkill_force_state(tpacpi_uwb_rfkill, status); |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3712 | |
| 3713 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3714 | "forced rfkill state to %d\n", |
| 3715 | status); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3716 | } |
| 3717 | |
| 3718 | static int uwb_set_radiosw(int radio_on, int update_rfk) |
| 3719 | { |
| 3720 | int status; |
| 3721 | |
| 3722 | if (!tp_features.uwb) |
| 3723 | return -ENODEV; |
| 3724 | |
| 3725 | /* WLSW overrides UWB in firmware/hardware, but there is no |
| 3726 | * reason to risk weird behaviour. */ |
| 3727 | if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status |
| 3728 | && radio_on) |
| 3729 | return -EPERM; |
| 3730 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3731 | vdbg_printk(TPACPI_DBG_RFKILL, |
| 3732 | "will %s UWB\n", radio_on ? "enable" : "disable"); |
| 3733 | |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3734 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3735 | if (dbg_uwbemul) { |
| 3736 | tpacpi_uwb_emulstate = !!radio_on; |
| 3737 | if (update_rfk) |
| 3738 | uwb_update_rfk(); |
| 3739 | return 0; |
| 3740 | } |
| 3741 | #endif |
| 3742 | |
| 3743 | status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0; |
| 3744 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
| 3745 | return -EIO; |
| 3746 | |
| 3747 | if (update_rfk) |
| 3748 | uwb_update_rfk(); |
| 3749 | |
| 3750 | return 0; |
| 3751 | } |
| 3752 | |
| 3753 | /* --------------------------------------------------------------------- */ |
| 3754 | |
| 3755 | static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state) |
| 3756 | { |
| 3757 | int uwbs = uwb_get_radiosw(); |
| 3758 | |
| 3759 | if (uwbs < 0) |
| 3760 | return uwbs; |
| 3761 | |
| 3762 | *state = uwbs; |
| 3763 | return 0; |
| 3764 | } |
| 3765 | |
| 3766 | static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state) |
| 3767 | { |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3768 | dbg_printk(TPACPI_DBG_RFKILL, |
| 3769 | "request to change radio state to %d\n", state); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3770 | return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); |
| 3771 | } |
| 3772 | |
| 3773 | static void uwb_exit(void) |
| 3774 | { |
| 3775 | if (tpacpi_uwb_rfkill) |
| 3776 | rfkill_unregister(tpacpi_uwb_rfkill); |
| 3777 | } |
| 3778 | |
| 3779 | static int __init uwb_init(struct ibm_init_struct *iibm) |
| 3780 | { |
| 3781 | int res; |
| 3782 | int status = 0; |
| 3783 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3784 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3785 | "initializing uwb subdriver\n"); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3786 | |
| 3787 | TPACPI_ACPIHANDLE_INIT(hkey); |
| 3788 | |
| 3789 | tp_features.uwb = hkey_handle && |
| 3790 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); |
| 3791 | |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3792 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
| 3793 | "uwb is %s, status 0x%02x\n", |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3794 | str_supported(tp_features.uwb), |
| 3795 | status); |
| 3796 | |
| 3797 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 3798 | if (dbg_uwbemul) { |
| 3799 | tp_features.uwb = 1; |
| 3800 | printk(TPACPI_INFO |
| 3801 | "uwb switch emulation enabled\n"); |
| 3802 | } else |
| 3803 | #endif |
| 3804 | if (tp_features.uwb && |
| 3805 | !(status & TP_ACPI_UWB_HWPRESENT)) { |
| 3806 | /* no uwb hardware present in system */ |
| 3807 | tp_features.uwb = 0; |
| 3808 | dbg_printk(TPACPI_DBG_INIT, |
| 3809 | "uwb hardware not installed\n"); |
| 3810 | } |
| 3811 | |
| 3812 | if (!tp_features.uwb) |
| 3813 | return 1; |
| 3814 | |
| 3815 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, |
| 3816 | &tpacpi_uwb_rfkill, |
| 3817 | RFKILL_TYPE_UWB, |
Henrique de Moraes Holschuh | bee4cd9 | 2009-04-04 04:25:50 +0000 | [diff] [blame] | 3818 | TPACPI_RFK_UWB_SW_NAME, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 3819 | false, |
| 3820 | tpacpi_uwb_rfk_set, |
| 3821 | tpacpi_uwb_rfk_get); |
| 3822 | |
| 3823 | return res; |
| 3824 | } |
| 3825 | |
| 3826 | static struct ibm_struct uwb_driver_data = { |
| 3827 | .name = "uwb", |
| 3828 | .exit = uwb_exit, |
| 3829 | .flags.experimental = 1, |
| 3830 | }; |
| 3831 | |
| 3832 | /************************************************************************* |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3833 | * Video subdriver |
| 3834 | */ |
| 3835 | |
Henrique de Moraes Holschuh | d7c1d17 | 2008-02-16 02:17:54 -0200 | [diff] [blame] | 3836 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
| 3837 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3838 | enum video_access_mode { |
| 3839 | TPACPI_VIDEO_NONE = 0, |
| 3840 | TPACPI_VIDEO_570, /* 570 */ |
| 3841 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ |
| 3842 | TPACPI_VIDEO_NEW, /* all others */ |
| 3843 | }; |
| 3844 | |
| 3845 | enum { /* video status flags, based on VIDEO_570 */ |
| 3846 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ |
| 3847 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ |
| 3848 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ |
| 3849 | }; |
| 3850 | |
| 3851 | enum { /* TPACPI_VIDEO_570 constants */ |
| 3852 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ |
| 3853 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to |
| 3854 | * video_status_flags */ |
| 3855 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ |
| 3856 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ |
| 3857 | }; |
| 3858 | |
Henrique de Moraes Holschuh | 9a8e173 | 2006-11-25 16:36:00 -0200 | [diff] [blame] | 3859 | static enum video_access_mode video_supported; |
| 3860 | static int video_orig_autosw; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3861 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 3862 | static int video_autosw_get(void); |
| 3863 | static int video_autosw_set(int enable); |
| 3864 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3865 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3866 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 3867 | static int __init video_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3868 | { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3869 | int ivga; |
| 3870 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3871 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
| 3872 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3873 | TPACPI_ACPIHANDLE_INIT(vid); |
| 3874 | TPACPI_ACPIHANDLE_INIT(vid2); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 3875 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3876 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
| 3877 | /* G41, assume IVGA doesn't change */ |
| 3878 | vid_handle = vid2_handle; |
| 3879 | |
| 3880 | if (!vid_handle) |
| 3881 | /* video switching not supported on R30, R31 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 3882 | video_supported = TPACPI_VIDEO_NONE; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3883 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) |
| 3884 | /* 570 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 3885 | video_supported = TPACPI_VIDEO_570; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3886 | else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) |
| 3887 | /* 600e/x, 770e, 770x */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 3888 | video_supported = TPACPI_VIDEO_770; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3889 | else |
| 3890 | /* all others */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 3891 | video_supported = TPACPI_VIDEO_NEW; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3892 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 3893 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
| 3894 | str_supported(video_supported != TPACPI_VIDEO_NONE), |
| 3895 | video_supported); |
| 3896 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 3897 | return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3898 | } |
| 3899 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3900 | static void video_exit(void) |
| 3901 | { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3902 | dbg_printk(TPACPI_DBG_EXIT, |
| 3903 | "restoring original video autoswitch mode\n"); |
| 3904 | if (video_autosw_set(video_orig_autosw)) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 3905 | printk(TPACPI_ERR "error while trying to restore original " |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3906 | "video autoswitch mode\n"); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 3907 | } |
| 3908 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3909 | static int video_outputsw_get(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3910 | { |
| 3911 | int status = 0; |
| 3912 | int i; |
| 3913 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3914 | switch (video_supported) { |
| 3915 | case TPACPI_VIDEO_570: |
| 3916 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", |
| 3917 | TP_ACPI_VIDEO_570_PHSCMD)) |
| 3918 | return -EIO; |
| 3919 | status = i & TP_ACPI_VIDEO_570_PHSMASK; |
| 3920 | break; |
| 3921 | case TPACPI_VIDEO_770: |
| 3922 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) |
| 3923 | return -EIO; |
| 3924 | if (i) |
| 3925 | status |= TP_ACPI_VIDEO_S_LCD; |
| 3926 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) |
| 3927 | return -EIO; |
| 3928 | if (i) |
| 3929 | status |= TP_ACPI_VIDEO_S_CRT; |
| 3930 | break; |
| 3931 | case TPACPI_VIDEO_NEW: |
| 3932 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || |
| 3933 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) |
| 3934 | return -EIO; |
| 3935 | if (i) |
| 3936 | status |= TP_ACPI_VIDEO_S_CRT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3937 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3938 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || |
| 3939 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) |
| 3940 | return -EIO; |
| 3941 | if (i) |
| 3942 | status |= TP_ACPI_VIDEO_S_LCD; |
| 3943 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) |
| 3944 | return -EIO; |
| 3945 | if (i) |
| 3946 | status |= TP_ACPI_VIDEO_S_DVI; |
| 3947 | break; |
| 3948 | default: |
| 3949 | return -ENOSYS; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3950 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3951 | |
| 3952 | return status; |
| 3953 | } |
| 3954 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3955 | static int video_outputsw_set(int status) |
| 3956 | { |
| 3957 | int autosw; |
| 3958 | int res = 0; |
| 3959 | |
| 3960 | switch (video_supported) { |
| 3961 | case TPACPI_VIDEO_570: |
| 3962 | res = acpi_evalf(NULL, NULL, |
| 3963 | "\\_SB.PHS2", "vdd", |
| 3964 | TP_ACPI_VIDEO_570_PHS2CMD, |
| 3965 | status | TP_ACPI_VIDEO_570_PHS2SET); |
| 3966 | break; |
| 3967 | case TPACPI_VIDEO_770: |
| 3968 | autosw = video_autosw_get(); |
| 3969 | if (autosw < 0) |
| 3970 | return autosw; |
| 3971 | |
| 3972 | res = video_autosw_set(1); |
| 3973 | if (res) |
| 3974 | return res; |
| 3975 | res = acpi_evalf(vid_handle, NULL, |
| 3976 | "ASWT", "vdd", status * 0x100, 0); |
| 3977 | if (!autosw && video_autosw_set(autosw)) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 3978 | printk(TPACPI_ERR |
| 3979 | "video auto-switch left enabled due to error\n"); |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3980 | return -EIO; |
| 3981 | } |
| 3982 | break; |
| 3983 | case TPACPI_VIDEO_NEW: |
| 3984 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 3985 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3986 | break; |
| 3987 | default: |
| 3988 | return -ENOSYS; |
| 3989 | } |
| 3990 | |
| 3991 | return (res)? 0 : -EIO; |
| 3992 | } |
| 3993 | |
| 3994 | static int video_autosw_get(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3995 | { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 3996 | int autosw = 0; |
| 3997 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 3998 | switch (video_supported) { |
| 3999 | case TPACPI_VIDEO_570: |
| 4000 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) |
| 4001 | return -EIO; |
| 4002 | break; |
| 4003 | case TPACPI_VIDEO_770: |
| 4004 | case TPACPI_VIDEO_NEW: |
| 4005 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) |
| 4006 | return -EIO; |
| 4007 | break; |
| 4008 | default: |
| 4009 | return -ENOSYS; |
| 4010 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4011 | |
| 4012 | return autosw & 1; |
| 4013 | } |
| 4014 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4015 | static int video_autosw_set(int enable) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4016 | { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4017 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4018 | return -EIO; |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4019 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4020 | } |
| 4021 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4022 | static int video_outputsw_cycle(void) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4023 | { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4024 | int autosw = video_autosw_get(); |
| 4025 | int res; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4026 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4027 | if (autosw < 0) |
| 4028 | return autosw; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4029 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4030 | switch (video_supported) { |
| 4031 | case TPACPI_VIDEO_570: |
| 4032 | res = video_autosw_set(1); |
| 4033 | if (res) |
| 4034 | return res; |
| 4035 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); |
| 4036 | break; |
| 4037 | case TPACPI_VIDEO_770: |
| 4038 | case TPACPI_VIDEO_NEW: |
| 4039 | res = video_autosw_set(1); |
| 4040 | if (res) |
| 4041 | return res; |
| 4042 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); |
| 4043 | break; |
| 4044 | default: |
| 4045 | return -ENOSYS; |
| 4046 | } |
| 4047 | if (!autosw && video_autosw_set(autosw)) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 4048 | printk(TPACPI_ERR |
| 4049 | "video auto-switch left enabled due to error\n"); |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4050 | return -EIO; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4051 | } |
| 4052 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4053 | return (res)? 0 : -EIO; |
| 4054 | } |
| 4055 | |
| 4056 | static int video_expand_toggle(void) |
| 4057 | { |
| 4058 | switch (video_supported) { |
| 4059 | case TPACPI_VIDEO_570: |
| 4060 | return acpi_evalf(ec_handle, NULL, "_Q17", "v")? |
| 4061 | 0 : -EIO; |
| 4062 | case TPACPI_VIDEO_770: |
| 4063 | return acpi_evalf(vid_handle, NULL, "VEXP", "v")? |
| 4064 | 0 : -EIO; |
| 4065 | case TPACPI_VIDEO_NEW: |
| 4066 | return acpi_evalf(NULL, NULL, "\\VEXP", "v")? |
| 4067 | 0 : -EIO; |
| 4068 | default: |
| 4069 | return -ENOSYS; |
| 4070 | } |
| 4071 | /* not reached */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4072 | } |
| 4073 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4074 | static int video_read(char *p) |
| 4075 | { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4076 | int status, autosw; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4077 | int len = 0; |
| 4078 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4079 | if (video_supported == TPACPI_VIDEO_NONE) { |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4080 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 4081 | return len; |
| 4082 | } |
| 4083 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4084 | status = video_outputsw_get(); |
| 4085 | if (status < 0) |
| 4086 | return status; |
| 4087 | |
| 4088 | autosw = video_autosw_get(); |
| 4089 | if (autosw < 0) |
| 4090 | return autosw; |
| 4091 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4092 | len += sprintf(p + len, "status:\t\tsupported\n"); |
| 4093 | len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); |
| 4094 | len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4095 | if (video_supported == TPACPI_VIDEO_NEW) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4096 | len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); |
| 4097 | len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); |
| 4098 | len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); |
| 4099 | len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4100 | if (video_supported == TPACPI_VIDEO_NEW) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4101 | len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); |
| 4102 | len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); |
| 4103 | len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); |
| 4104 | |
| 4105 | return len; |
| 4106 | } |
| 4107 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4108 | static int video_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4109 | { |
| 4110 | char *cmd; |
| 4111 | int enable, disable, status; |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4112 | int res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4113 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4114 | if (video_supported == TPACPI_VIDEO_NONE) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4115 | return -ENODEV; |
| 4116 | |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4117 | enable = 0; |
| 4118 | disable = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4119 | |
| 4120 | while ((cmd = next_cmd(&buf))) { |
| 4121 | if (strlencmp(cmd, "lcd_enable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4122 | enable |= TP_ACPI_VIDEO_S_LCD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4123 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4124 | disable |= TP_ACPI_VIDEO_S_LCD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4125 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4126 | enable |= TP_ACPI_VIDEO_S_CRT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4127 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4128 | disable |= TP_ACPI_VIDEO_S_CRT; |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4129 | } else if (video_supported == TPACPI_VIDEO_NEW && |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4130 | strlencmp(cmd, "dvi_enable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4131 | enable |= TP_ACPI_VIDEO_S_DVI; |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4132 | } else if (video_supported == TPACPI_VIDEO_NEW && |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4133 | strlencmp(cmd, "dvi_disable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4134 | disable |= TP_ACPI_VIDEO_S_DVI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4135 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4136 | res = video_autosw_set(1); |
| 4137 | if (res) |
| 4138 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4139 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4140 | res = video_autosw_set(0); |
| 4141 | if (res) |
| 4142 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4143 | } else if (strlencmp(cmd, "video_switch") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4144 | res = video_outputsw_cycle(); |
| 4145 | if (res) |
| 4146 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4147 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4148 | res = video_expand_toggle(); |
| 4149 | if (res) |
| 4150 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4151 | } else |
| 4152 | return -EINVAL; |
| 4153 | } |
| 4154 | |
| 4155 | if (enable || disable) { |
Henrique de Moraes Holschuh | 83f3472 | 2007-04-21 11:08:41 -0300 | [diff] [blame] | 4156 | status = video_outputsw_get(); |
| 4157 | if (status < 0) |
| 4158 | return status; |
| 4159 | res = video_outputsw_set((status & ~disable) | enable); |
| 4160 | if (res) |
| 4161 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4162 | } |
| 4163 | |
| 4164 | return 0; |
| 4165 | } |
| 4166 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4167 | static struct ibm_struct video_driver_data = { |
| 4168 | .name = "video", |
| 4169 | .read = video_read, |
| 4170 | .write = video_write, |
| 4171 | .exit = video_exit, |
| 4172 | }; |
| 4173 | |
Henrique de Moraes Holschuh | d7c1d17 | 2008-02-16 02:17:54 -0200 | [diff] [blame] | 4174 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
| 4175 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4176 | /************************************************************************* |
| 4177 | * Light (thinklight) subdriver |
| 4178 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4179 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4180 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
| 4181 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4182 | |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4183 | static int light_get_status(void) |
| 4184 | { |
| 4185 | int status = 0; |
| 4186 | |
| 4187 | if (tp_features.light_status) { |
| 4188 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) |
| 4189 | return -EIO; |
| 4190 | return (!!status); |
| 4191 | } |
| 4192 | |
| 4193 | return -ENXIO; |
| 4194 | } |
| 4195 | |
| 4196 | static int light_set_status(int status) |
| 4197 | { |
| 4198 | int rc; |
| 4199 | |
| 4200 | if (tp_features.light) { |
| 4201 | if (cmos_handle) { |
| 4202 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", |
| 4203 | (status)? |
| 4204 | TP_CMOS_THINKLIGHT_ON : |
| 4205 | TP_CMOS_THINKLIGHT_OFF); |
| 4206 | } else { |
| 4207 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", |
| 4208 | (status)? 1 : 0); |
| 4209 | } |
| 4210 | return (rc)? 0 : -EIO; |
| 4211 | } |
| 4212 | |
| 4213 | return -ENXIO; |
| 4214 | } |
| 4215 | |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4216 | static void light_set_status_worker(struct work_struct *work) |
| 4217 | { |
| 4218 | struct tpacpi_led_classdev *data = |
| 4219 | container_of(work, struct tpacpi_led_classdev, work); |
| 4220 | |
| 4221 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 4222 | light_set_status((data->new_state != TPACPI_LED_OFF)); |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4223 | } |
| 4224 | |
| 4225 | static void light_sysfs_set(struct led_classdev *led_cdev, |
| 4226 | enum led_brightness brightness) |
| 4227 | { |
| 4228 | struct tpacpi_led_classdev *data = |
| 4229 | container_of(led_cdev, |
| 4230 | struct tpacpi_led_classdev, |
| 4231 | led_classdev); |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 4232 | data->new_state = (brightness != LED_OFF) ? |
| 4233 | TPACPI_LED_ON : TPACPI_LED_OFF; |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 4234 | queue_work(tpacpi_wq, &data->work); |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4235 | } |
| 4236 | |
| 4237 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) |
| 4238 | { |
| 4239 | return (light_get_status() == 1)? LED_FULL : LED_OFF; |
| 4240 | } |
| 4241 | |
| 4242 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { |
| 4243 | .led_classdev = { |
| 4244 | .name = "tpacpi::thinklight", |
| 4245 | .brightness_set = &light_sysfs_set, |
| 4246 | .brightness_get = &light_sysfs_get, |
| 4247 | } |
| 4248 | }; |
| 4249 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4250 | static int __init light_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4251 | { |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 4252 | int rc; |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4253 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4254 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
| 4255 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4256 | TPACPI_ACPIHANDLE_INIT(ledb); |
| 4257 | TPACPI_ACPIHANDLE_INIT(lght); |
| 4258 | TPACPI_ACPIHANDLE_INIT(cmos); |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4259 | INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4260 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4261 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4262 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4263 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4264 | if (tp_features.light) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4265 | /* light status not supported on |
| 4266 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4267 | tp_features.light_status = |
| 4268 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4269 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 4270 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
| 4271 | str_supported(tp_features.light), |
| 4272 | str_supported(tp_features.light_status)); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4273 | |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 4274 | if (!tp_features.light) |
| 4275 | return 1; |
| 4276 | |
| 4277 | rc = led_classdev_register(&tpacpi_pdev->dev, |
| 4278 | &tpacpi_led_thinklight.led_classdev); |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4279 | |
| 4280 | if (rc < 0) { |
| 4281 | tp_features.light = 0; |
| 4282 | tp_features.light_status = 0; |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 4283 | } else { |
| 4284 | rc = 0; |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4285 | } |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 4286 | |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4287 | return rc; |
| 4288 | } |
| 4289 | |
| 4290 | static void light_exit(void) |
| 4291 | { |
| 4292 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); |
| 4293 | if (work_pending(&tpacpi_led_thinklight.work)) |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 4294 | flush_workqueue(tpacpi_wq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4295 | } |
| 4296 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4297 | static int light_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4298 | { |
| 4299 | int len = 0; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4300 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4301 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4302 | if (!tp_features.light) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4303 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4304 | } else if (!tp_features.light_status) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4305 | len += sprintf(p + len, "status:\t\tunknown\n"); |
| 4306 | len += sprintf(p + len, "commands:\ton, off\n"); |
| 4307 | } else { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4308 | status = light_get_status(); |
| 4309 | if (status < 0) |
| 4310 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4311 | len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4312 | len += sprintf(p + len, "commands:\ton, off\n"); |
| 4313 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4314 | |
| 4315 | return len; |
| 4316 | } |
| 4317 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4318 | static int light_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4319 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4320 | char *cmd; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4321 | int newstatus = 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4322 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4323 | if (!tp_features.light) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4324 | return -ENODEV; |
| 4325 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4326 | while ((cmd = next_cmd(&buf))) { |
| 4327 | if (strlencmp(cmd, "on") == 0) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4328 | newstatus = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4329 | } else if (strlencmp(cmd, "off") == 0) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4330 | newstatus = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4331 | } else |
| 4332 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4333 | } |
| 4334 | |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4335 | return light_set_status(newstatus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4336 | } |
| 4337 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4338 | static struct ibm_struct light_driver_data = { |
| 4339 | .name = "light", |
| 4340 | .read = light_read, |
| 4341 | .write = light_write, |
Henrique de Moraes Holschuh | e306501 | 2008-04-26 01:02:24 -0300 | [diff] [blame] | 4342 | .exit = light_exit, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4343 | }; |
| 4344 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4345 | /************************************************************************* |
| 4346 | * Dock subdriver |
| 4347 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4348 | |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 4349 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4350 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 4351 | static void dock_notify(struct ibm_struct *ibm, u32 event); |
| 4352 | static int dock_read(char *p); |
| 4353 | static int dock_write(char *buf); |
| 4354 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4355 | TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4356 | "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ |
| 4357 | "\\_SB.PCI0.PCI1.DOCK", /* all others */ |
| 4358 | "\\_SB.PCI.ISA.SLCE", /* 570 */ |
| 4359 | ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ |
| 4360 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4361 | /* don't list other alternatives as we install a notify handler on the 570 */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4362 | TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4363 | |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 4364 | static const struct acpi_device_id ibm_pci_device_ids[] = { |
| 4365 | {PCI_ROOT_HID_STRING, 0}, |
| 4366 | {"", 0}, |
| 4367 | }; |
| 4368 | |
Henrique de Moraes Holschuh | d94a7f1 | 2007-04-27 22:00:15 -0300 | [diff] [blame] | 4369 | static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { |
| 4370 | { |
| 4371 | .notify = dock_notify, |
| 4372 | .handle = &dock_handle, |
| 4373 | .type = ACPI_SYSTEM_NOTIFY, |
| 4374 | }, |
| 4375 | { |
Henrique de Moraes Holschuh | 996fba0 | 2007-07-18 23:45:40 -0300 | [diff] [blame] | 4376 | /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. |
| 4377 | * We just use it to get notifications of dock hotplug |
| 4378 | * in very old thinkpads */ |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 4379 | .hid = ibm_pci_device_ids, |
Henrique de Moraes Holschuh | d94a7f1 | 2007-04-27 22:00:15 -0300 | [diff] [blame] | 4380 | .notify = dock_notify, |
| 4381 | .handle = &pci_handle, |
| 4382 | .type = ACPI_SYSTEM_NOTIFY, |
| 4383 | }, |
| 4384 | }; |
| 4385 | |
| 4386 | static struct ibm_struct dock_driver_data[2] = { |
| 4387 | { |
| 4388 | .name = "dock", |
| 4389 | .read = dock_read, |
| 4390 | .write = dock_write, |
| 4391 | .acpi = &ibm_dock_acpidriver[0], |
| 4392 | }, |
| 4393 | { |
| 4394 | .name = "dock", |
| 4395 | .acpi = &ibm_dock_acpidriver[1], |
| 4396 | }, |
| 4397 | }; |
| 4398 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4399 | #define dock_docked() (_sta(dock_handle) & 1) |
| 4400 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4401 | static int __init dock_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4402 | { |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4403 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); |
| 4404 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4405 | TPACPI_ACPIHANDLE_INIT(dock); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4406 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4407 | vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", |
| 4408 | str_supported(dock_handle != NULL)); |
| 4409 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4410 | return (dock_handle)? 0 : 1; |
| 4411 | } |
| 4412 | |
Henrique de Moraes Holschuh | d94a7f1 | 2007-04-27 22:00:15 -0300 | [diff] [blame] | 4413 | static int __init dock_init2(struct ibm_init_struct *iibm) |
| 4414 | { |
| 4415 | int dock2_needed; |
| 4416 | |
| 4417 | vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); |
| 4418 | |
| 4419 | if (dock_driver_data[0].flags.acpi_driver_registered && |
| 4420 | dock_driver_data[0].flags.acpi_notify_installed) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4421 | TPACPI_ACPIHANDLE_INIT(pci); |
Henrique de Moraes Holschuh | d94a7f1 | 2007-04-27 22:00:15 -0300 | [diff] [blame] | 4422 | dock2_needed = (pci_handle != NULL); |
| 4423 | vdbg_printk(TPACPI_DBG_INIT, |
| 4424 | "dock PCI handler for the TP 570 is %s\n", |
| 4425 | str_supported(dock2_needed)); |
| 4426 | } else { |
| 4427 | vdbg_printk(TPACPI_DBG_INIT, |
| 4428 | "dock subdriver part 2 not required\n"); |
| 4429 | dock2_needed = 0; |
| 4430 | } |
| 4431 | |
| 4432 | return (dock2_needed)? 0 : 1; |
| 4433 | } |
| 4434 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4435 | static void dock_notify(struct ibm_struct *ibm, u32 event) |
| 4436 | { |
| 4437 | int docked = dock_docked(); |
Thomas Renninger | 1ba90e3 | 2007-07-23 14:44:41 +0200 | [diff] [blame] | 4438 | int pci = ibm->acpi->hid && ibm->acpi->device && |
| 4439 | acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4440 | int data; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4441 | |
| 4442 | if (event == 1 && !pci) /* 570 */ |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4443 | data = 1; /* button */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4444 | else if (event == 1 && pci) /* 570 */ |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4445 | data = 3; /* dock */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4446 | else if (event == 3 && docked) |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4447 | data = 1; /* button */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4448 | else if (event == 3 && !docked) |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4449 | data = 2; /* undock */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4450 | else if (event == 0 && docked) |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4451 | data = 3; /* dock */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4452 | else { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4453 | printk(TPACPI_ERR "unknown dock event %d, status %d\n", |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4454 | event, _sta(dock_handle)); |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4455 | data = 0; /* unknown */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4456 | } |
Len Brown | 14e04fb | 2007-08-23 15:20:26 -0400 | [diff] [blame] | 4457 | acpi_bus_generate_proc_event(ibm->acpi->device, event, data); |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4458 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
Kay Sievers | e0b36fc | 2009-01-11 03:00:59 -0200 | [diff] [blame] | 4459 | dev_name(&ibm->acpi->device->dev), |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4460 | event, data); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4461 | } |
| 4462 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4463 | static int dock_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4464 | { |
| 4465 | int len = 0; |
| 4466 | int docked = dock_docked(); |
| 4467 | |
| 4468 | if (!dock_handle) |
| 4469 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 4470 | else if (!docked) |
| 4471 | len += sprintf(p + len, "status:\t\tundocked\n"); |
| 4472 | else { |
| 4473 | len += sprintf(p + len, "status:\t\tdocked\n"); |
| 4474 | len += sprintf(p + len, "commands:\tdock, undock\n"); |
| 4475 | } |
| 4476 | |
| 4477 | return len; |
| 4478 | } |
| 4479 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4480 | static int dock_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4481 | { |
| 4482 | char *cmd; |
| 4483 | |
| 4484 | if (!dock_docked()) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4485 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4486 | |
| 4487 | while ((cmd = next_cmd(&buf))) { |
| 4488 | if (strlencmp(cmd, "undock") == 0) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4489 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || |
| 4490 | !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4491 | return -EIO; |
| 4492 | } else if (strlencmp(cmd, "dock") == 0) { |
| 4493 | if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) |
| 4494 | return -EIO; |
| 4495 | } else |
| 4496 | return -EINVAL; |
| 4497 | } |
| 4498 | |
| 4499 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4500 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4501 | |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 4502 | #endif /* CONFIG_THINKPAD_ACPI_DOCK */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4503 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4504 | /************************************************************************* |
| 4505 | * Bay subdriver |
| 4506 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4507 | |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 4508 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 4509 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4510 | TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4511 | "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ |
| 4512 | "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ |
| 4513 | "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ |
| 4514 | ); /* A21e, R30, R31 */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4515 | TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4516 | "_EJ0", /* all others */ |
| 4517 | ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4518 | TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4519 | "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ |
| 4520 | ); /* all others */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4521 | TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4522 | "_EJ0", /* 770x */ |
| 4523 | ); /* all others */ |
| 4524 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4525 | static int __init bay_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4526 | { |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4527 | vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); |
| 4528 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4529 | TPACPI_ACPIHANDLE_INIT(bay); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4530 | if (bay_handle) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4531 | TPACPI_ACPIHANDLE_INIT(bay_ej); |
| 4532 | TPACPI_ACPIHANDLE_INIT(bay2); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4533 | if (bay2_handle) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4534 | TPACPI_ACPIHANDLE_INIT(bay2_ej); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4535 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4536 | tp_features.bay_status = bay_handle && |
| 4537 | acpi_evalf(bay_handle, NULL, "_STA", "qv"); |
| 4538 | tp_features.bay_status2 = bay2_handle && |
| 4539 | acpi_evalf(bay2_handle, NULL, "_STA", "qv"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4540 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4541 | tp_features.bay_eject = bay_handle && bay_ej_handle && |
| 4542 | (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); |
| 4543 | tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && |
| 4544 | (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4545 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4546 | vdbg_printk(TPACPI_DBG_INIT, |
| 4547 | "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4548 | str_supported(tp_features.bay_status), |
| 4549 | str_supported(tp_features.bay_eject), |
| 4550 | str_supported(tp_features.bay_status2), |
| 4551 | str_supported(tp_features.bay_eject2)); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4552 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4553 | return (tp_features.bay_status || tp_features.bay_eject || |
| 4554 | tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4555 | } |
| 4556 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4557 | static void bay_notify(struct ibm_struct *ibm, u32 event) |
| 4558 | { |
Len Brown | 14e04fb | 2007-08-23 15:20:26 -0400 | [diff] [blame] | 4559 | acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4560 | acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, |
Kay Sievers | e0b36fc | 2009-01-11 03:00:59 -0200 | [diff] [blame] | 4561 | dev_name(&ibm->acpi->device->dev), |
Zhang Rui | 962ce8c | 2007-08-23 01:24:31 +0800 | [diff] [blame] | 4562 | event, 0); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4563 | } |
| 4564 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4565 | #define bay_occupied(b) (_sta(b##_handle) & 1) |
| 4566 | |
| 4567 | static int bay_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4568 | { |
| 4569 | int len = 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4570 | int occupied = bay_occupied(bay); |
| 4571 | int occupied2 = bay_occupied(bay2); |
| 4572 | int eject, eject2; |
| 4573 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4574 | len += sprintf(p + len, "status:\t\t%s\n", |
| 4575 | tp_features.bay_status ? |
| 4576 | (occupied ? "occupied" : "unoccupied") : |
| 4577 | "not supported"); |
| 4578 | if (tp_features.bay_status2) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4579 | len += sprintf(p + len, "status2:\t%s\n", occupied2 ? |
| 4580 | "occupied" : "unoccupied"); |
| 4581 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4582 | eject = tp_features.bay_eject && occupied; |
| 4583 | eject2 = tp_features.bay_eject2 && occupied2; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4584 | |
| 4585 | if (eject && eject2) |
| 4586 | len += sprintf(p + len, "commands:\teject, eject2\n"); |
| 4587 | else if (eject) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4588 | len += sprintf(p + len, "commands:\teject\n"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4589 | else if (eject2) |
| 4590 | len += sprintf(p + len, "commands:\teject2\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4591 | |
| 4592 | return len; |
| 4593 | } |
| 4594 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4595 | static int bay_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4596 | { |
| 4597 | char *cmd; |
| 4598 | |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4599 | if (!tp_features.bay_eject && !tp_features.bay_eject2) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4600 | return -ENODEV; |
| 4601 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4602 | while ((cmd = next_cmd(&buf))) { |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4603 | if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4604 | if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) |
| 4605 | return -EIO; |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 4606 | } else if (tp_features.bay_eject2 && |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4607 | strlencmp(cmd, "eject2") == 0) { |
| 4608 | if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4609 | return -EIO; |
| 4610 | } else |
| 4611 | return -EINVAL; |
| 4612 | } |
| 4613 | |
| 4614 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4615 | } |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4616 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 4617 | static struct tp_acpi_drv_struct ibm_bay_acpidriver = { |
| 4618 | .notify = bay_notify, |
| 4619 | .handle = &bay_handle, |
| 4620 | .type = ACPI_SYSTEM_NOTIFY, |
| 4621 | }; |
| 4622 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4623 | static struct ibm_struct bay_driver_data = { |
| 4624 | .name = "bay", |
| 4625 | .read = bay_read, |
| 4626 | .write = bay_write, |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 4627 | .acpi = &ibm_bay_acpidriver, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4628 | }; |
| 4629 | |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 4630 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4631 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4632 | /************************************************************************* |
| 4633 | * CMOS subdriver |
| 4634 | */ |
| 4635 | |
Henrique de Moraes Holschuh | b616004 | 2007-04-24 11:48:19 -0300 | [diff] [blame] | 4636 | /* sysfs cmos_command -------------------------------------------------- */ |
| 4637 | static ssize_t cmos_command_store(struct device *dev, |
| 4638 | struct device_attribute *attr, |
| 4639 | const char *buf, size_t count) |
| 4640 | { |
| 4641 | unsigned long cmos_cmd; |
| 4642 | int res; |
| 4643 | |
| 4644 | if (parse_strtoul(buf, 21, &cmos_cmd)) |
| 4645 | return -EINVAL; |
| 4646 | |
| 4647 | res = issue_thinkpad_cmos_command(cmos_cmd); |
| 4648 | return (res)? res : count; |
| 4649 | } |
| 4650 | |
| 4651 | static struct device_attribute dev_attr_cmos_command = |
| 4652 | __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); |
| 4653 | |
| 4654 | /* --------------------------------------------------------------------- */ |
| 4655 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4656 | static int __init cmos_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4657 | { |
Henrique de Moraes Holschuh | b616004 | 2007-04-24 11:48:19 -0300 | [diff] [blame] | 4658 | int res; |
| 4659 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4660 | vdbg_printk(TPACPI_DBG_INIT, |
| 4661 | "initializing cmos commands subdriver\n"); |
| 4662 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4663 | TPACPI_ACPIHANDLE_INIT(cmos); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4664 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4665 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
| 4666 | str_supported(cmos_handle != NULL)); |
Henrique de Moraes Holschuh | b616004 | 2007-04-24 11:48:19 -0300 | [diff] [blame] | 4667 | |
| 4668 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); |
| 4669 | if (res) |
| 4670 | return res; |
| 4671 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4672 | return (cmos_handle)? 0 : 1; |
| 4673 | } |
| 4674 | |
Henrique de Moraes Holschuh | b616004 | 2007-04-24 11:48:19 -0300 | [diff] [blame] | 4675 | static void cmos_exit(void) |
| 4676 | { |
| 4677 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); |
| 4678 | } |
| 4679 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4680 | static int cmos_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4681 | { |
| 4682 | int len = 0; |
| 4683 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4684 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
| 4685 | R30, R31, T20-22, X20-21 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4686 | if (!cmos_handle) |
| 4687 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 4688 | else { |
| 4689 | len += sprintf(p + len, "status:\t\tsupported\n"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4690 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4691 | } |
| 4692 | |
| 4693 | return len; |
| 4694 | } |
| 4695 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4696 | static int cmos_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4697 | { |
| 4698 | char *cmd; |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 4699 | int cmos_cmd, res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4700 | |
| 4701 | while ((cmd = next_cmd(&buf))) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4702 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
| 4703 | cmos_cmd >= 0 && cmos_cmd <= 21) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4704 | /* cmos_cmd set */ |
| 4705 | } else |
| 4706 | return -EINVAL; |
| 4707 | |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 4708 | res = issue_thinkpad_cmos_command(cmos_cmd); |
| 4709 | if (res) |
| 4710 | return res; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4711 | } |
| 4712 | |
| 4713 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4714 | } |
| 4715 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4716 | static struct ibm_struct cmos_driver_data = { |
| 4717 | .name = "cmos", |
| 4718 | .read = cmos_read, |
| 4719 | .write = cmos_write, |
Henrique de Moraes Holschuh | b616004 | 2007-04-24 11:48:19 -0300 | [diff] [blame] | 4720 | .exit = cmos_exit, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4721 | }; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4722 | |
| 4723 | /************************************************************************* |
| 4724 | * LED subdriver |
| 4725 | */ |
| 4726 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 4727 | enum led_access_mode { |
| 4728 | TPACPI_LED_NONE = 0, |
| 4729 | TPACPI_LED_570, /* 570 */ |
| 4730 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ |
| 4731 | TPACPI_LED_NEW, /* all others */ |
| 4732 | }; |
| 4733 | |
| 4734 | enum { /* For TPACPI_LED_OLD */ |
| 4735 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ |
| 4736 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ |
| 4737 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ |
| 4738 | }; |
| 4739 | |
Henrique de Moraes Holschuh | 9a8e173 | 2006-11-25 16:36:00 -0200 | [diff] [blame] | 4740 | static enum led_access_mode led_supported; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4741 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4742 | TPACPI_HANDLE(led, ec, "SLED", /* 570 */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 4743 | "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ |
| 4744 | /* T20-22, X20-21 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 4745 | "LED", /* all others */ |
| 4746 | ); /* R30, R31 */ |
| 4747 | |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4748 | #define TPACPI_LED_NUMLEDS 8 |
| 4749 | static struct tpacpi_led_classdev *tpacpi_leds; |
| 4750 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; |
Harvey Harrison | e3aa51f | 2008-05-29 17:51:57 -0700 | [diff] [blame] | 4751 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4752 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
| 4753 | "tpacpi::power", |
| 4754 | "tpacpi:orange:batt", |
| 4755 | "tpacpi:green:batt", |
| 4756 | "tpacpi::dock_active", |
| 4757 | "tpacpi::bay_active", |
| 4758 | "tpacpi::dock_batt", |
| 4759 | "tpacpi::unknown_led", |
| 4760 | "tpacpi::standby", |
| 4761 | }; |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4762 | #define TPACPI_SAFE_LEDS 0x0081U |
| 4763 | |
| 4764 | static inline bool tpacpi_is_led_restricted(const unsigned int led) |
| 4765 | { |
| 4766 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
| 4767 | return false; |
| 4768 | #else |
| 4769 | return (TPACPI_SAFE_LEDS & (1 << led)) == 0; |
| 4770 | #endif |
| 4771 | } |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4772 | |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4773 | static int led_get_status(const unsigned int led) |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4774 | { |
| 4775 | int status; |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4776 | enum led_status_t led_s; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4777 | |
| 4778 | switch (led_supported) { |
| 4779 | case TPACPI_LED_570: |
| 4780 | if (!acpi_evalf(ec_handle, |
| 4781 | &status, "GLED", "dd", 1 << led)) |
| 4782 | return -EIO; |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4783 | led_s = (status == 0)? |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4784 | TPACPI_LED_OFF : |
| 4785 | ((status == 1)? |
| 4786 | TPACPI_LED_ON : |
| 4787 | TPACPI_LED_BLINK); |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4788 | tpacpi_led_state_cache[led] = led_s; |
| 4789 | return led_s; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4790 | default: |
| 4791 | return -ENXIO; |
| 4792 | } |
| 4793 | |
| 4794 | /* not reached */ |
| 4795 | } |
| 4796 | |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4797 | static int led_set_status(const unsigned int led, |
| 4798 | const enum led_status_t ledstatus) |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4799 | { |
| 4800 | /* off, on, blink. Index is led_status_t */ |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4801 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
| 4802 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4803 | |
| 4804 | int rc = 0; |
| 4805 | |
| 4806 | switch (led_supported) { |
| 4807 | case TPACPI_LED_570: |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4808 | /* 570 */ |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4809 | if (unlikely(led > 7)) |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4810 | return -EINVAL; |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4811 | if (unlikely(tpacpi_is_led_restricted(led))) |
| 4812 | return -EPERM; |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4813 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
| 4814 | (1 << led), led_sled_arg1[ledstatus])) |
| 4815 | rc = -EIO; |
| 4816 | break; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4817 | case TPACPI_LED_OLD: |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4818 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4819 | if (unlikely(led > 7)) |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4820 | return -EINVAL; |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4821 | if (unlikely(tpacpi_is_led_restricted(led))) |
| 4822 | return -EPERM; |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4823 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
| 4824 | if (rc >= 0) |
| 4825 | rc = ec_write(TPACPI_LED_EC_HLBL, |
| 4826 | (ledstatus == TPACPI_LED_BLINK) << led); |
| 4827 | if (rc >= 0) |
| 4828 | rc = ec_write(TPACPI_LED_EC_HLCL, |
| 4829 | (ledstatus != TPACPI_LED_OFF) << led); |
| 4830 | break; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4831 | case TPACPI_LED_NEW: |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4832 | /* all others */ |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4833 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
| 4834 | return -EINVAL; |
| 4835 | if (unlikely(tpacpi_is_led_restricted(led))) |
| 4836 | return -EPERM; |
Henrique de Moraes Holschuh | 24e45bb | 2008-06-03 23:36:11 -0300 | [diff] [blame] | 4837 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
| 4838 | led, led_led_arg1[ledstatus])) |
| 4839 | rc = -EIO; |
| 4840 | break; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4841 | default: |
| 4842 | rc = -ENXIO; |
| 4843 | } |
| 4844 | |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4845 | if (!rc) |
| 4846 | tpacpi_led_state_cache[led] = ledstatus; |
| 4847 | |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 4848 | return rc; |
| 4849 | } |
| 4850 | |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4851 | static void led_set_status_worker(struct work_struct *work) |
| 4852 | { |
| 4853 | struct tpacpi_led_classdev *data = |
| 4854 | container_of(work, struct tpacpi_led_classdev, work); |
| 4855 | |
| 4856 | if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 4857 | led_set_status(data->led, data->new_state); |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4858 | } |
| 4859 | |
| 4860 | static void led_sysfs_set(struct led_classdev *led_cdev, |
| 4861 | enum led_brightness brightness) |
| 4862 | { |
| 4863 | struct tpacpi_led_classdev *data = container_of(led_cdev, |
| 4864 | struct tpacpi_led_classdev, led_classdev); |
| 4865 | |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 4866 | if (brightness == LED_OFF) |
| 4867 | data->new_state = TPACPI_LED_OFF; |
| 4868 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) |
| 4869 | data->new_state = TPACPI_LED_ON; |
| 4870 | else |
| 4871 | data->new_state = TPACPI_LED_BLINK; |
| 4872 | |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 4873 | queue_work(tpacpi_wq, &data->work); |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4874 | } |
| 4875 | |
| 4876 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, |
| 4877 | unsigned long *delay_on, unsigned long *delay_off) |
| 4878 | { |
| 4879 | struct tpacpi_led_classdev *data = container_of(led_cdev, |
| 4880 | struct tpacpi_led_classdev, led_classdev); |
| 4881 | |
| 4882 | /* Can we choose the flash rate? */ |
| 4883 | if (*delay_on == 0 && *delay_off == 0) { |
| 4884 | /* yes. set them to the hardware blink rate (1 Hz) */ |
| 4885 | *delay_on = 500; /* ms */ |
| 4886 | *delay_off = 500; /* ms */ |
| 4887 | } else if ((*delay_on != 500) || (*delay_off != 500)) |
| 4888 | return -EINVAL; |
| 4889 | |
Henrique de Moraes Holschuh | 75bd3bf | 2009-04-14 02:44:11 +0000 | [diff] [blame] | 4890 | data->new_state = TPACPI_LED_BLINK; |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 4891 | queue_work(tpacpi_wq, &data->work); |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4892 | |
| 4893 | return 0; |
| 4894 | } |
| 4895 | |
| 4896 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) |
| 4897 | { |
| 4898 | int rc; |
| 4899 | |
| 4900 | struct tpacpi_led_classdev *data = container_of(led_cdev, |
| 4901 | struct tpacpi_led_classdev, led_classdev); |
| 4902 | |
| 4903 | rc = led_get_status(data->led); |
| 4904 | |
| 4905 | if (rc == TPACPI_LED_OFF || rc < 0) |
| 4906 | rc = LED_OFF; /* no error handling in led class :( */ |
| 4907 | else |
| 4908 | rc = LED_FULL; |
| 4909 | |
| 4910 | return rc; |
| 4911 | } |
| 4912 | |
| 4913 | static void led_exit(void) |
| 4914 | { |
| 4915 | unsigned int i; |
| 4916 | |
| 4917 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
| 4918 | if (tpacpi_leds[i].led_classdev.name) |
| 4919 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); |
| 4920 | } |
| 4921 | |
| 4922 | kfree(tpacpi_leds); |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4923 | } |
| 4924 | |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4925 | static int __init tpacpi_init_led(unsigned int led) |
| 4926 | { |
| 4927 | int rc; |
| 4928 | |
| 4929 | tpacpi_leds[led].led = led; |
| 4930 | |
| 4931 | tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set; |
| 4932 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; |
| 4933 | if (led_supported == TPACPI_LED_570) |
| 4934 | tpacpi_leds[led].led_classdev.brightness_get = |
| 4935 | &led_sysfs_get; |
| 4936 | |
| 4937 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; |
| 4938 | |
| 4939 | INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker); |
| 4940 | |
| 4941 | rc = led_classdev_register(&tpacpi_pdev->dev, |
| 4942 | &tpacpi_leds[led].led_classdev); |
| 4943 | if (rc < 0) |
| 4944 | tpacpi_leds[led].led_classdev.name = NULL; |
| 4945 | |
| 4946 | return rc; |
| 4947 | } |
| 4948 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 4949 | static int __init led_init(struct ibm_init_struct *iibm) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4950 | { |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4951 | unsigned int i; |
| 4952 | int rc; |
| 4953 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4954 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
| 4955 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 4956 | TPACPI_ACPIHANDLE_INIT(led); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4957 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4958 | if (!led_handle) |
| 4959 | /* led not supported on R30, R31 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4960 | led_supported = TPACPI_LED_NONE; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4961 | else if (strlencmp(led_path, "SLED") == 0) |
| 4962 | /* 570 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4963 | led_supported = TPACPI_LED_570; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4964 | else if (strlencmp(led_path, "SYSL") == 0) |
| 4965 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4966 | led_supported = TPACPI_LED_OLD; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4967 | else |
| 4968 | /* all others */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 4969 | led_supported = TPACPI_LED_NEW; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4970 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 4971 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
| 4972 | str_supported(led_supported), led_supported); |
| 4973 | |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4974 | tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, |
| 4975 | GFP_KERNEL); |
| 4976 | if (!tpacpi_leds) { |
| 4977 | printk(TPACPI_ERR "Out of memory for LED data\n"); |
| 4978 | return -ENOMEM; |
| 4979 | } |
| 4980 | |
| 4981 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4982 | if (!tpacpi_is_led_restricted(i)) { |
| 4983 | rc = tpacpi_init_led(i); |
| 4984 | if (rc < 0) { |
| 4985 | led_exit(); |
| 4986 | return rc; |
| 4987 | } |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 4988 | } |
| 4989 | } |
| 4990 | |
Henrique de Moraes Holschuh | a4d5eff | 2009-04-04 04:25:49 +0000 | [diff] [blame] | 4991 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
| 4992 | if (led_supported != TPACPI_LED_NONE) |
| 4993 | printk(TPACPI_NOTICE |
| 4994 | "warning: userspace override of important " |
| 4995 | "firmware LEDs is enabled\n"); |
| 4996 | #endif |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 4997 | return (led_supported != TPACPI_LED_NONE)? 0 : 1; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 4998 | } |
| 4999 | |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5000 | #define str_led_status(s) \ |
| 5001 | ((s) == TPACPI_LED_OFF ? "off" : \ |
| 5002 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5003 | |
| 5004 | static int led_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5005 | { |
| 5006 | int len = 0; |
| 5007 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5008 | if (!led_supported) { |
| 5009 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 5010 | return len; |
| 5011 | } |
| 5012 | len += sprintf(p + len, "status:\t\tsupported\n"); |
| 5013 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5014 | if (led_supported == TPACPI_LED_570) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5015 | /* 570 */ |
| 5016 | int i, status; |
| 5017 | for (i = 0; i < 8; i++) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5018 | status = led_get_status(i); |
| 5019 | if (status < 0) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5020 | return -EIO; |
| 5021 | len += sprintf(p + len, "%d:\t\t%s\n", |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5022 | i, str_led_status(status)); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5023 | } |
| 5024 | } |
| 5025 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5026 | len += sprintf(p + len, "commands:\t" |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5027 | "<led> on, <led> off, <led> blink (<led> is 0-7)\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5028 | |
| 5029 | return len; |
| 5030 | } |
| 5031 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5032 | static int led_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5033 | { |
| 5034 | char *cmd; |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5035 | int led, rc; |
| 5036 | enum led_status_t s; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5037 | |
| 5038 | if (!led_supported) |
| 5039 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5040 | |
| 5041 | while ((cmd = next_cmd(&buf))) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5042 | if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5043 | return -EINVAL; |
| 5044 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5045 | if (strstr(cmd, "off")) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5046 | s = TPACPI_LED_OFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5047 | } else if (strstr(cmd, "on")) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5048 | s = TPACPI_LED_ON; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5049 | } else if (strstr(cmd, "blink")) { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5050 | s = TPACPI_LED_BLINK; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5051 | } else { |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5052 | return -EINVAL; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5053 | } |
Henrique de Moraes Holschuh | 4fa6811 | 2008-04-26 01:02:23 -0300 | [diff] [blame] | 5054 | |
| 5055 | rc = led_set_status(led, s); |
| 5056 | if (rc < 0) |
| 5057 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5058 | } |
| 5059 | |
| 5060 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5061 | } |
| 5062 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5063 | static struct ibm_struct led_driver_data = { |
| 5064 | .name = "led", |
| 5065 | .read = led_read, |
| 5066 | .write = led_write, |
Henrique de Moraes Holschuh | af11610 | 2008-04-26 01:02:25 -0300 | [diff] [blame] | 5067 | .exit = led_exit, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5068 | }; |
| 5069 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5070 | /************************************************************************* |
| 5071 | * Beep subdriver |
| 5072 | */ |
| 5073 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 5074 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5075 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5076 | static int __init beep_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5077 | { |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5078 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
| 5079 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 5080 | TPACPI_ACPIHANDLE_INIT(beep); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5081 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5082 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
| 5083 | str_supported(beep_handle != NULL)); |
| 5084 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5085 | return (beep_handle)? 0 : 1; |
| 5086 | } |
| 5087 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5088 | static int beep_read(char *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5089 | { |
| 5090 | int len = 0; |
| 5091 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5092 | if (!beep_handle) |
| 5093 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 5094 | else { |
| 5095 | len += sprintf(p + len, "status:\t\tsupported\n"); |
| 5096 | len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n"); |
| 5097 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5098 | |
| 5099 | return len; |
| 5100 | } |
| 5101 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5102 | static int beep_write(char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5103 | { |
| 5104 | char *cmd; |
| 5105 | int beep_cmd; |
| 5106 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5107 | if (!beep_handle) |
| 5108 | return -ENODEV; |
| 5109 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5110 | while ((cmd = next_cmd(&buf))) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5111 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && |
| 5112 | beep_cmd >= 0 && beep_cmd <= 17) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5113 | /* beep_cmd set */ |
| 5114 | } else |
| 5115 | return -EINVAL; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5116 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5117 | return -EIO; |
| 5118 | } |
| 5119 | |
| 5120 | return 0; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5121 | } |
| 5122 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5123 | static struct ibm_struct beep_driver_data = { |
| 5124 | .name = "beep", |
| 5125 | .read = beep_read, |
| 5126 | .write = beep_write, |
| 5127 | }; |
| 5128 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5129 | /************************************************************************* |
| 5130 | * Thermal subdriver |
| 5131 | */ |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5132 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 5133 | enum thermal_access_mode { |
| 5134 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ |
| 5135 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ |
| 5136 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ |
| 5137 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ |
| 5138 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ |
| 5139 | }; |
| 5140 | |
| 5141 | enum { /* TPACPI_THERMAL_TPEC_* */ |
| 5142 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ |
| 5143 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ |
| 5144 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ |
| 5145 | }; |
| 5146 | |
| 5147 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
| 5148 | struct ibm_thermal_sensors_struct { |
| 5149 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; |
| 5150 | }; |
| 5151 | |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5152 | static enum thermal_access_mode thermal_read_mode; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5153 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5154 | /* idx is zero-based */ |
| 5155 | static int thermal_get_sensor(int idx, s32 *value) |
| 5156 | { |
| 5157 | int t; |
| 5158 | s8 tmp; |
| 5159 | char tmpi[5]; |
| 5160 | |
| 5161 | t = TP_EC_THERMAL_TMP0; |
| 5162 | |
| 5163 | switch (thermal_read_mode) { |
| 5164 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 |
| 5165 | case TPACPI_THERMAL_TPEC_16: |
| 5166 | if (idx >= 8 && idx <= 15) { |
| 5167 | t = TP_EC_THERMAL_TMP8; |
| 5168 | idx -= 8; |
| 5169 | } |
| 5170 | /* fallthrough */ |
| 5171 | #endif |
| 5172 | case TPACPI_THERMAL_TPEC_8: |
| 5173 | if (idx <= 7) { |
| 5174 | if (!acpi_ec_read(t + idx, &tmp)) |
| 5175 | return -EIO; |
| 5176 | *value = tmp * 1000; |
| 5177 | return 0; |
| 5178 | } |
| 5179 | break; |
| 5180 | |
| 5181 | case TPACPI_THERMAL_ACPI_UPDT: |
| 5182 | if (idx <= 7) { |
| 5183 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); |
| 5184 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) |
| 5185 | return -EIO; |
| 5186 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
| 5187 | return -EIO; |
| 5188 | *value = (t - 2732) * 100; |
| 5189 | return 0; |
| 5190 | } |
| 5191 | break; |
| 5192 | |
| 5193 | case TPACPI_THERMAL_ACPI_TMP07: |
| 5194 | if (idx <= 7) { |
| 5195 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); |
| 5196 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) |
| 5197 | return -EIO; |
| 5198 | if (t > 127 || t < -127) |
| 5199 | t = TP_EC_THERMAL_TMP_NA; |
| 5200 | *value = t * 1000; |
| 5201 | return 0; |
| 5202 | } |
| 5203 | break; |
| 5204 | |
| 5205 | case TPACPI_THERMAL_NONE: |
| 5206 | default: |
| 5207 | return -ENOSYS; |
| 5208 | } |
| 5209 | |
| 5210 | return -EINVAL; |
| 5211 | } |
| 5212 | |
| 5213 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) |
| 5214 | { |
| 5215 | int res, i; |
| 5216 | int n; |
| 5217 | |
| 5218 | n = 8; |
| 5219 | i = 0; |
| 5220 | |
| 5221 | if (!s) |
| 5222 | return -EINVAL; |
| 5223 | |
| 5224 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) |
| 5225 | n = 16; |
| 5226 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5227 | for (i = 0 ; i < n; i++) { |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5228 | res = thermal_get_sensor(i, &s->temp[i]); |
| 5229 | if (res) |
| 5230 | return res; |
| 5231 | } |
| 5232 | |
| 5233 | return n; |
| 5234 | } |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 5235 | |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5236 | /* sysfs temp##_input -------------------------------------------------- */ |
| 5237 | |
| 5238 | static ssize_t thermal_temp_input_show(struct device *dev, |
| 5239 | struct device_attribute *attr, |
| 5240 | char *buf) |
| 5241 | { |
| 5242 | struct sensor_device_attribute *sensor_attr = |
| 5243 | to_sensor_dev_attr(attr); |
| 5244 | int idx = sensor_attr->index; |
| 5245 | s32 value; |
| 5246 | int res; |
| 5247 | |
| 5248 | res = thermal_get_sensor(idx, &value); |
| 5249 | if (res) |
| 5250 | return res; |
| 5251 | if (value == TP_EC_THERMAL_TMP_NA * 1000) |
| 5252 | return -ENXIO; |
| 5253 | |
| 5254 | return snprintf(buf, PAGE_SIZE, "%d\n", value); |
| 5255 | } |
| 5256 | |
| 5257 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5258 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
| 5259 | thermal_temp_input_show, NULL, _idxB) |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5260 | |
| 5261 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { |
| 5262 | THERMAL_SENSOR_ATTR_TEMP(1, 0), |
| 5263 | THERMAL_SENSOR_ATTR_TEMP(2, 1), |
| 5264 | THERMAL_SENSOR_ATTR_TEMP(3, 2), |
| 5265 | THERMAL_SENSOR_ATTR_TEMP(4, 3), |
| 5266 | THERMAL_SENSOR_ATTR_TEMP(5, 4), |
| 5267 | THERMAL_SENSOR_ATTR_TEMP(6, 5), |
| 5268 | THERMAL_SENSOR_ATTR_TEMP(7, 6), |
| 5269 | THERMAL_SENSOR_ATTR_TEMP(8, 7), |
| 5270 | THERMAL_SENSOR_ATTR_TEMP(9, 8), |
| 5271 | THERMAL_SENSOR_ATTR_TEMP(10, 9), |
| 5272 | THERMAL_SENSOR_ATTR_TEMP(11, 10), |
| 5273 | THERMAL_SENSOR_ATTR_TEMP(12, 11), |
| 5274 | THERMAL_SENSOR_ATTR_TEMP(13, 12), |
| 5275 | THERMAL_SENSOR_ATTR_TEMP(14, 13), |
| 5276 | THERMAL_SENSOR_ATTR_TEMP(15, 14), |
| 5277 | THERMAL_SENSOR_ATTR_TEMP(16, 15), |
| 5278 | }; |
| 5279 | |
| 5280 | #define THERMAL_ATTRS(X) \ |
| 5281 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr |
| 5282 | |
| 5283 | static struct attribute *thermal_temp_input_attr[] = { |
| 5284 | THERMAL_ATTRS(8), |
| 5285 | THERMAL_ATTRS(9), |
| 5286 | THERMAL_ATTRS(10), |
| 5287 | THERMAL_ATTRS(11), |
| 5288 | THERMAL_ATTRS(12), |
| 5289 | THERMAL_ATTRS(13), |
| 5290 | THERMAL_ATTRS(14), |
| 5291 | THERMAL_ATTRS(15), |
| 5292 | THERMAL_ATTRS(0), |
| 5293 | THERMAL_ATTRS(1), |
| 5294 | THERMAL_ATTRS(2), |
| 5295 | THERMAL_ATTRS(3), |
| 5296 | THERMAL_ATTRS(4), |
| 5297 | THERMAL_ATTRS(5), |
| 5298 | THERMAL_ATTRS(6), |
| 5299 | THERMAL_ATTRS(7), |
| 5300 | NULL |
| 5301 | }; |
| 5302 | |
| 5303 | static const struct attribute_group thermal_temp_input16_group = { |
| 5304 | .attrs = thermal_temp_input_attr |
| 5305 | }; |
| 5306 | |
| 5307 | static const struct attribute_group thermal_temp_input8_group = { |
| 5308 | .attrs = &thermal_temp_input_attr[8] |
| 5309 | }; |
| 5310 | |
| 5311 | #undef THERMAL_SENSOR_ATTR_TEMP |
| 5312 | #undef THERMAL_ATTRS |
| 5313 | |
| 5314 | /* --------------------------------------------------------------------- */ |
| 5315 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5316 | static int __init thermal_init(struct ibm_init_struct *iibm) |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5317 | { |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5318 | u8 t, ta1, ta2; |
| 5319 | int i; |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5320 | int acpi_tmp7; |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5321 | int res; |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5322 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5323 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
| 5324 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 5325 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5326 | |
Henrique de Moraes Holschuh | 3d6f99c | 2007-07-18 23:45:46 -0300 | [diff] [blame] | 5327 | if (thinkpad_id.ec_model) { |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5328 | /* |
| 5329 | * Direct EC access mode: sensors at registers |
| 5330 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for |
| 5331 | * non-implemented, thermal sensors return 0x80 when |
| 5332 | * not available |
| 5333 | */ |
| 5334 | |
| 5335 | ta1 = ta2 = 0; |
| 5336 | for (i = 0; i < 8; i++) { |
Henrique de Moraes Holschuh | 04cc862 | 2007-04-21 11:08:43 -0300 | [diff] [blame] | 5337 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5338 | ta1 |= t; |
| 5339 | } else { |
| 5340 | ta1 = 0; |
| 5341 | break; |
| 5342 | } |
Henrique de Moraes Holschuh | 04cc862 | 2007-04-21 11:08:43 -0300 | [diff] [blame] | 5343 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5344 | ta2 |= t; |
| 5345 | } else { |
| 5346 | ta1 = 0; |
| 5347 | break; |
| 5348 | } |
| 5349 | } |
| 5350 | if (ta1 == 0) { |
| 5351 | /* This is sheer paranoia, but we handle it anyway */ |
| 5352 | if (acpi_tmp7) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 5353 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5354 | "ThinkPad ACPI EC access misbehaving, " |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5355 | "falling back to ACPI TMPx access " |
| 5356 | "mode\n"); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5357 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5358 | } else { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 5359 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5360 | "ThinkPad ACPI EC access misbehaving, " |
| 5361 | "disabling thermal sensors access\n"); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5362 | thermal_read_mode = TPACPI_THERMAL_NONE; |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5363 | } |
| 5364 | } else { |
| 5365 | thermal_read_mode = |
| 5366 | (ta2 != 0) ? |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5367 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5368 | } |
| 5369 | } else if (acpi_tmp7) { |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5370 | if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { |
| 5371 | /* 600e/x, 770e, 770x */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5372 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5373 | } else { |
| 5374 | /* Standard ACPI TMPx access, max 8 sensors */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5375 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5376 | } |
| 5377 | } else { |
| 5378 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 5379 | thermal_read_mode = TPACPI_THERMAL_NONE; |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5380 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5381 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5382 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
| 5383 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), |
| 5384 | thermal_read_mode); |
| 5385 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5386 | switch (thermal_read_mode) { |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5387 | case TPACPI_THERMAL_TPEC_16: |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 5388 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5389 | &thermal_temp_input16_group); |
| 5390 | if (res) |
| 5391 | return res; |
| 5392 | break; |
| 5393 | case TPACPI_THERMAL_TPEC_8: |
| 5394 | case TPACPI_THERMAL_ACPI_TMP07: |
| 5395 | case TPACPI_THERMAL_ACPI_UPDT: |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 5396 | res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5397 | &thermal_temp_input8_group); |
| 5398 | if (res) |
| 5399 | return res; |
| 5400 | break; |
| 5401 | case TPACPI_THERMAL_NONE: |
| 5402 | default: |
| 5403 | return 1; |
| 5404 | } |
| 5405 | |
| 5406 | return 0; |
| 5407 | } |
| 5408 | |
| 5409 | static void thermal_exit(void) |
| 5410 | { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5411 | switch (thermal_read_mode) { |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5412 | case TPACPI_THERMAL_TPEC_16: |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 5413 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5414 | &thermal_temp_input16_group); |
| 5415 | break; |
| 5416 | case TPACPI_THERMAL_TPEC_8: |
| 5417 | case TPACPI_THERMAL_ACPI_TMP07: |
| 5418 | case TPACPI_THERMAL_ACPI_UPDT: |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 5419 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5420 | &thermal_temp_input16_group); |
| 5421 | break; |
| 5422 | case TPACPI_THERMAL_NONE: |
| 5423 | default: |
| 5424 | break; |
| 5425 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5426 | } |
| 5427 | |
| 5428 | static int thermal_read(char *p) |
| 5429 | { |
| 5430 | int len = 0; |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5431 | int n, i; |
| 5432 | struct ibm_thermal_sensors_struct t; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5433 | |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5434 | n = thermal_get_sensors(&t); |
| 5435 | if (unlikely(n < 0)) |
| 5436 | return n; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5437 | |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5438 | len += sprintf(p + len, "temperatures:\t"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5439 | |
Henrique de Moraes Holschuh | a26f878 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 5440 | if (n > 0) { |
| 5441 | for (i = 0; i < (n - 1); i++) |
| 5442 | len += sprintf(p + len, "%d ", t.temp[i] / 1000); |
| 5443 | len += sprintf(p + len, "%d\n", t.temp[i] / 1000); |
| 5444 | } else |
| 5445 | len += sprintf(p + len, "not supported\n"); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5446 | |
| 5447 | return len; |
| 5448 | } |
| 5449 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5450 | static struct ibm_struct thermal_driver_data = { |
| 5451 | .name = "thermal", |
| 5452 | .read = thermal_read, |
Henrique de Moraes Holschuh | 2c37aa4 | 2007-04-24 11:48:16 -0300 | [diff] [blame] | 5453 | .exit = thermal_exit, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5454 | }; |
| 5455 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5456 | /************************************************************************* |
| 5457 | * EC Dump subdriver |
| 5458 | */ |
| 5459 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5460 | static u8 ecdump_regs[256]; |
| 5461 | |
| 5462 | static int ecdump_read(char *p) |
| 5463 | { |
| 5464 | int len = 0; |
| 5465 | int i, j; |
| 5466 | u8 v; |
| 5467 | |
| 5468 | len += sprintf(p + len, "EC " |
| 5469 | " +00 +01 +02 +03 +04 +05 +06 +07" |
| 5470 | " +08 +09 +0a +0b +0c +0d +0e +0f\n"); |
| 5471 | for (i = 0; i < 256; i += 16) { |
| 5472 | len += sprintf(p + len, "EC 0x%02x:", i); |
| 5473 | for (j = 0; j < 16; j++) { |
| 5474 | if (!acpi_ec_read(i + j, &v)) |
| 5475 | break; |
| 5476 | if (v != ecdump_regs[i + j]) |
| 5477 | len += sprintf(p + len, " *%02x", v); |
| 5478 | else |
| 5479 | len += sprintf(p + len, " %02x", v); |
| 5480 | ecdump_regs[i + j] = v; |
| 5481 | } |
| 5482 | len += sprintf(p + len, "\n"); |
| 5483 | if (j != 16) |
| 5484 | break; |
| 5485 | } |
| 5486 | |
| 5487 | /* These are way too dangerous to advertise openly... */ |
| 5488 | #if 0 |
| 5489 | len += sprintf(p + len, "commands:\t0x<offset> 0x<value>" |
| 5490 | " (<offset> is 00-ff, <value> is 00-ff)\n"); |
| 5491 | len += sprintf(p + len, "commands:\t0x<offset> <value> " |
| 5492 | " (<offset> is 00-ff, <value> is 0-255)\n"); |
| 5493 | #endif |
| 5494 | return len; |
| 5495 | } |
| 5496 | |
| 5497 | static int ecdump_write(char *buf) |
| 5498 | { |
| 5499 | char *cmd; |
| 5500 | int i, v; |
| 5501 | |
| 5502 | while ((cmd = next_cmd(&buf))) { |
| 5503 | if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { |
| 5504 | /* i and v set */ |
| 5505 | } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { |
| 5506 | /* i and v set */ |
| 5507 | } else |
| 5508 | return -EINVAL; |
| 5509 | if (i >= 0 && i < 256 && v >= 0 && v < 256) { |
| 5510 | if (!acpi_ec_write(i, v)) |
| 5511 | return -EIO; |
| 5512 | } else |
| 5513 | return -EINVAL; |
| 5514 | } |
| 5515 | |
| 5516 | return 0; |
| 5517 | } |
| 5518 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5519 | static struct ibm_struct ecdump_driver_data = { |
| 5520 | .name = "ecdump", |
| 5521 | .read = ecdump_read, |
| 5522 | .write = ecdump_write, |
Henrique de Moraes Holschuh | 9264117 | 2007-04-21 11:08:35 -0300 | [diff] [blame] | 5523 | .flags.experimental = 1, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5524 | }; |
| 5525 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5526 | /************************************************************************* |
| 5527 | * Backlight/brightness subdriver |
| 5528 | */ |
Holger Macht | 8acb025 | 2006-10-20 14:30:28 -0700 | [diff] [blame] | 5529 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 5530 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
| 5531 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5532 | /* |
| 5533 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or |
| 5534 | * CMOS NVRAM byte 0x5E, bits 0-3. |
| 5535 | * |
| 5536 | * EC HBRV (0x31) has the following layout |
| 5537 | * Bit 7: unknown function |
| 5538 | * Bit 6: unknown function |
| 5539 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes |
| 5540 | * Bit 4: must be set to zero to avoid problems |
| 5541 | * Bit 3-0: backlight brightness level |
| 5542 | * |
| 5543 | * brightness_get_raw returns status data in the HBRV layout |
| 5544 | */ |
| 5545 | |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5546 | enum { |
| 5547 | TP_EC_BACKLIGHT = 0x31, |
| 5548 | |
| 5549 | /* TP_EC_BACKLIGHT bitmasks */ |
| 5550 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, |
| 5551 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, |
| 5552 | TP_EC_BACKLIGHT_MAPSW = 0x20, |
| 5553 | }; |
| 5554 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5555 | enum tpacpi_brightness_access_mode { |
| 5556 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ |
| 5557 | TPACPI_BRGHT_MODE_EC, /* EC control */ |
| 5558 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ |
| 5559 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ |
| 5560 | TPACPI_BRGHT_MODE_MAX |
| 5561 | }; |
| 5562 | |
Henrique de Moraes Holschuh | 94954cc | 2007-07-18 23:45:27 -0300 | [diff] [blame] | 5563 | static struct backlight_device *ibm_backlight_device; |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5564 | |
| 5565 | static enum tpacpi_brightness_access_mode brightness_mode = |
| 5566 | TPACPI_BRGHT_MODE_MAX; |
| 5567 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 5568 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
| 5569 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5570 | static struct mutex brightness_mutex; |
| 5571 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5572 | /* NVRAM brightness access, |
| 5573 | * call with brightness_mutex held! */ |
| 5574 | static unsigned int tpacpi_brightness_nvram_get(void) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5575 | { |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5576 | u8 lnvram; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5577 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5578 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
| 5579 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) |
| 5580 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; |
| 5581 | lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5582 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5583 | return lnvram; |
| 5584 | } |
| 5585 | |
| 5586 | static void tpacpi_brightness_checkpoint_nvram(void) |
| 5587 | { |
| 5588 | u8 lec = 0; |
| 5589 | u8 b_nvram; |
| 5590 | |
| 5591 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) |
| 5592 | return; |
| 5593 | |
| 5594 | vdbg_printk(TPACPI_DBG_BRGHT, |
| 5595 | "trying to checkpoint backlight level to NVRAM...\n"); |
| 5596 | |
| 5597 | if (mutex_lock_killable(&brightness_mutex) < 0) |
| 5598 | return; |
| 5599 | |
| 5600 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) |
| 5601 | goto unlock; |
| 5602 | lec &= TP_EC_BACKLIGHT_LVLMSK; |
| 5603 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); |
| 5604 | |
| 5605 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) |
| 5606 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { |
| 5607 | /* NVRAM needs update */ |
| 5608 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << |
| 5609 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); |
| 5610 | b_nvram |= lec; |
| 5611 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); |
| 5612 | dbg_printk(TPACPI_DBG_BRGHT, |
| 5613 | "updated NVRAM backlight level to %u (0x%02x)\n", |
| 5614 | (unsigned int) lec, (unsigned int) b_nvram); |
| 5615 | } else |
| 5616 | vdbg_printk(TPACPI_DBG_BRGHT, |
| 5617 | "NVRAM backlight level already is %u (0x%02x)\n", |
| 5618 | (unsigned int) lec, (unsigned int) b_nvram); |
| 5619 | |
| 5620 | unlock: |
| 5621 | mutex_unlock(&brightness_mutex); |
| 5622 | } |
| 5623 | |
| 5624 | |
| 5625 | /* call with brightness_mutex held! */ |
| 5626 | static int tpacpi_brightness_get_raw(int *status) |
| 5627 | { |
| 5628 | u8 lec = 0; |
| 5629 | |
| 5630 | switch (brightness_mode) { |
| 5631 | case TPACPI_BRGHT_MODE_UCMS_STEP: |
| 5632 | *status = tpacpi_brightness_nvram_get(); |
| 5633 | return 0; |
| 5634 | case TPACPI_BRGHT_MODE_EC: |
| 5635 | case TPACPI_BRGHT_MODE_ECNVRAM: |
| 5636 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) |
Henrique de Moraes Holschuh | 2d5e94d | 2008-04-26 01:02:20 -0300 | [diff] [blame] | 5637 | return -EIO; |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5638 | *status = lec; |
| 5639 | return 0; |
| 5640 | default: |
| 5641 | return -ENXIO; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5642 | } |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5643 | } |
| 5644 | |
| 5645 | /* call with brightness_mutex held! */ |
| 5646 | /* do NOT call with illegal backlight level value */ |
| 5647 | static int tpacpi_brightness_set_ec(unsigned int value) |
| 5648 | { |
| 5649 | u8 lec = 0; |
| 5650 | |
| 5651 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) |
| 5652 | return -EIO; |
| 5653 | |
| 5654 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, |
| 5655 | (lec & TP_EC_BACKLIGHT_CMDMSK) | |
| 5656 | (value & TP_EC_BACKLIGHT_LVLMSK)))) |
| 5657 | return -EIO; |
| 5658 | |
| 5659 | return 0; |
| 5660 | } |
| 5661 | |
| 5662 | /* call with brightness_mutex held! */ |
| 5663 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) |
| 5664 | { |
| 5665 | int cmos_cmd, inc; |
| 5666 | unsigned int current_value, i; |
| 5667 | |
| 5668 | current_value = tpacpi_brightness_nvram_get(); |
| 5669 | |
| 5670 | if (value == current_value) |
| 5671 | return 0; |
| 5672 | |
| 5673 | cmos_cmd = (value > current_value) ? |
| 5674 | TP_CMOS_BRIGHTNESS_UP : |
| 5675 | TP_CMOS_BRIGHTNESS_DOWN; |
| 5676 | inc = (value > current_value) ? 1 : -1; |
| 5677 | |
| 5678 | for (i = current_value; i != value; i += inc) |
| 5679 | if (issue_thinkpad_cmos_command(cmos_cmd)) |
| 5680 | return -EIO; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5681 | |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5682 | return 0; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5683 | } |
| 5684 | |
| 5685 | /* May return EINTR which can always be mapped to ERESTARTSYS */ |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5686 | static int brightness_set(unsigned int value) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5687 | { |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5688 | int res; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5689 | |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5690 | if (value > ((tp_features.bright_16levels)? 15 : 7) || |
| 5691 | value < 0) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5692 | return -EINVAL; |
| 5693 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5694 | vdbg_printk(TPACPI_DBG_BRGHT, |
| 5695 | "set backlight level to %d\n", value); |
| 5696 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 5697 | res = mutex_lock_killable(&brightness_mutex); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5698 | if (res < 0) |
| 5699 | return res; |
| 5700 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5701 | switch (brightness_mode) { |
| 5702 | case TPACPI_BRGHT_MODE_EC: |
| 5703 | case TPACPI_BRGHT_MODE_ECNVRAM: |
| 5704 | res = tpacpi_brightness_set_ec(value); |
| 5705 | break; |
| 5706 | case TPACPI_BRGHT_MODE_UCMS_STEP: |
| 5707 | res = tpacpi_brightness_set_ucmsstep(value); |
| 5708 | break; |
| 5709 | default: |
| 5710 | res = -ENXIO; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5711 | } |
| 5712 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5713 | mutex_unlock(&brightness_mutex); |
| 5714 | return res; |
| 5715 | } |
| 5716 | |
| 5717 | /* sysfs backlight class ----------------------------------------------- */ |
| 5718 | |
| 5719 | static int brightness_update_status(struct backlight_device *bd) |
| 5720 | { |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5721 | unsigned int level = |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5722 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
| 5723 | bd->props.power == FB_BLANK_UNBLANK) ? |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5724 | bd->props.brightness : 0; |
| 5725 | |
| 5726 | dbg_printk(TPACPI_DBG_BRGHT, |
| 5727 | "backlight: attempt to set level to %d\n", |
| 5728 | level); |
| 5729 | |
| 5730 | /* it is the backlight class's job (caller) to handle |
| 5731 | * EINTR and other errors properly */ |
| 5732 | return brightness_set(level); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5733 | } |
Holger Macht | 8acb025 | 2006-10-20 14:30:28 -0700 | [diff] [blame] | 5734 | |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5735 | static int brightness_get(struct backlight_device *bd) |
| 5736 | { |
| 5737 | int status, res; |
| 5738 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5739 | res = mutex_lock_killable(&brightness_mutex); |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5740 | if (res < 0) |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5741 | return 0; |
| 5742 | |
| 5743 | res = tpacpi_brightness_get_raw(&status); |
| 5744 | |
| 5745 | mutex_unlock(&brightness_mutex); |
| 5746 | |
| 5747 | if (res < 0) |
| 5748 | return 0; |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5749 | |
| 5750 | return status & TP_EC_BACKLIGHT_LVLMSK; |
| 5751 | } |
| 5752 | |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 5753 | static struct backlight_ops ibm_backlight_data = { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5754 | .get_brightness = brightness_get, |
| 5755 | .update_status = brightness_update_status, |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5756 | }; |
| 5757 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 5758 | /* --------------------------------------------------------------------- */ |
Henrique de Moraes Holschuh | f432255 | 2007-07-18 23:45:48 -0300 | [diff] [blame] | 5759 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5760 | static int __init brightness_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5761 | { |
Henrique de Moraes Holschuh | adb0058 | 2007-02-22 16:04:55 -0200 | [diff] [blame] | 5762 | int b; |
| 5763 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5764 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
| 5765 | |
Henrique de Moraes Holschuh | f432255 | 2007-07-18 23:45:48 -0300 | [diff] [blame] | 5766 | mutex_init(&brightness_mutex); |
| 5767 | |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 5768 | /* |
| 5769 | * We always attempt to detect acpi support, so as to switch |
| 5770 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not |
| 5771 | * going to publish a backlight interface |
| 5772 | */ |
| 5773 | b = tpacpi_check_std_acpi_brightness_support(); |
| 5774 | if (b > 0) { |
Thomas Renninger | 2dba1b5 | 2008-08-01 17:38:03 +0200 | [diff] [blame] | 5775 | |
| 5776 | if (acpi_video_backlight_support()) { |
| 5777 | if (brightness_enable > 1) { |
| 5778 | printk(TPACPI_NOTICE |
| 5779 | "Standard ACPI backlight interface " |
| 5780 | "available, not loading native one.\n"); |
| 5781 | return 1; |
| 5782 | } else if (brightness_enable == 1) { |
| 5783 | printk(TPACPI_NOTICE |
| 5784 | "Backlight control force enabled, even if standard " |
| 5785 | "ACPI backlight interface is available\n"); |
| 5786 | } |
| 5787 | } else { |
| 5788 | if (brightness_enable > 1) { |
| 5789 | printk(TPACPI_NOTICE |
| 5790 | "Standard ACPI backlight interface not " |
| 5791 | "available, thinkpad_acpi native " |
| 5792 | "brightness control enabled\n"); |
| 5793 | } |
Henrique de Moraes Holschuh | e11e211 | 2007-10-30 17:46:22 -0200 | [diff] [blame] | 5794 | } |
Henrique de Moraes Holschuh | 87cc537 | 2007-10-30 18:02:07 -0200 | [diff] [blame] | 5795 | } |
| 5796 | |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 5797 | if (!brightness_enable) { |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5798 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
Henrique de Moraes Holschuh | b597279 | 2008-04-26 01:02:17 -0300 | [diff] [blame] | 5799 | "brightness support disabled by " |
| 5800 | "module parameter\n"); |
| 5801 | return 1; |
| 5802 | } |
| 5803 | |
| 5804 | if (b > 16) { |
| 5805 | printk(TPACPI_ERR |
| 5806 | "Unsupported brightness interface, " |
| 5807 | "please contact %s\n", TPACPI_MAIL); |
| 5808 | return 1; |
| 5809 | } |
| 5810 | if (b == 16) |
| 5811 | tp_features.bright_16levels = 1; |
| 5812 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5813 | /* |
| 5814 | * Check for module parameter bogosity, note that we |
| 5815 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be |
| 5816 | * able to detect "unspecified" |
| 5817 | */ |
| 5818 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) |
Henrique de Moraes Holschuh | 24d3b77 | 2007-07-18 23:45:43 -0300 | [diff] [blame] | 5819 | return -EINVAL; |
| 5820 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5821 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
| 5822 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || |
| 5823 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { |
| 5824 | if (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) { |
| 5825 | /* |
| 5826 | * IBM models that define HBRV probably have |
| 5827 | * EC-based backlight level control |
| 5828 | */ |
| 5829 | if (acpi_evalf(ec_handle, NULL, "HBRV", "qd")) |
| 5830 | /* T40-T43, R50-R52, R50e, R51e, X31-X41 */ |
| 5831 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; |
| 5832 | else |
| 5833 | /* all other IBM ThinkPads */ |
| 5834 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
| 5835 | } else |
| 5836 | /* All Lenovo ThinkPads */ |
| 5837 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
| 5838 | |
| 5839 | dbg_printk(TPACPI_DBG_BRGHT, |
| 5840 | "selected brightness_mode=%d\n", |
| 5841 | brightness_mode); |
| 5842 | } |
| 5843 | |
| 5844 | if (tpacpi_brightness_get_raw(&b) < 0) |
Henrique de Moraes Holschuh | 24d3b77 | 2007-07-18 23:45:43 -0300 | [diff] [blame] | 5845 | return 1; |
Henrique de Moraes Holschuh | adb0058 | 2007-02-22 16:04:55 -0200 | [diff] [blame] | 5846 | |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5847 | if (tp_features.bright_16levels) |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5848 | printk(TPACPI_INFO |
| 5849 | "detected a 16-level brightness capable ThinkPad\n"); |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5850 | |
Henrique de Moraes Holschuh | 7d5a015 | 2007-04-24 11:48:20 -0300 | [diff] [blame] | 5851 | ibm_backlight_device = backlight_device_register( |
| 5852 | TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, |
| 5853 | &ibm_backlight_data); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5854 | if (IS_ERR(ibm_backlight_device)) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 5855 | printk(TPACPI_ERR "Could not register backlight device\n"); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5856 | return PTR_ERR(ibm_backlight_device); |
| 5857 | } |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5858 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
| 5859 | "brightness is supported\n"); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5860 | |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5861 | ibm_backlight_device->props.max_brightness = |
| 5862 | (tp_features.bright_16levels)? 15 : 7; |
Henrique de Moraes Holschuh | e11aecf | 2008-04-26 01:02:21 -0300 | [diff] [blame] | 5863 | ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; |
Henrique de Moraes Holschuh | adb0058 | 2007-02-22 16:04:55 -0200 | [diff] [blame] | 5864 | backlight_update_status(ibm_backlight_device); |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 5865 | |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5866 | return 0; |
| 5867 | } |
| 5868 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5869 | static void brightness_suspend(pm_message_t state) |
| 5870 | { |
| 5871 | tpacpi_brightness_checkpoint_nvram(); |
| 5872 | } |
| 5873 | |
| 5874 | static void brightness_shutdown(void) |
| 5875 | { |
| 5876 | tpacpi_brightness_checkpoint_nvram(); |
| 5877 | } |
| 5878 | |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5879 | static void brightness_exit(void) |
| 5880 | { |
| 5881 | if (ibm_backlight_device) { |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5882 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 5883 | "calling backlight_device_unregister()\n"); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5884 | backlight_device_unregister(ibm_backlight_device); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5885 | } |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5886 | |
| 5887 | tpacpi_brightness_checkpoint_nvram(); |
Henrique de Moraes Holschuh | fb87a81 | 2006-11-25 16:35:09 -0200 | [diff] [blame] | 5888 | } |
| 5889 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5890 | static int brightness_read(char *p) |
| 5891 | { |
| 5892 | int len = 0; |
| 5893 | int level; |
| 5894 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 5895 | level = brightness_get(NULL); |
| 5896 | if (level < 0) { |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5897 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
| 5898 | } else { |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5899 | len += sprintf(p + len, "level:\t\t%d\n", level); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5900 | len += sprintf(p + len, "commands:\tup, down\n"); |
| 5901 | len += sprintf(p + len, "commands:\tlevel <level>" |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5902 | " (<level> is 0-%d)\n", |
| 5903 | (tp_features.bright_16levels) ? 15 : 7); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5904 | } |
| 5905 | |
| 5906 | return len; |
| 5907 | } |
| 5908 | |
| 5909 | static int brightness_write(char *buf) |
| 5910 | { |
| 5911 | int level; |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5912 | int rc; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5913 | char *cmd; |
Henrique de Moraes Holschuh | a3f104c | 2007-10-30 17:46:20 -0200 | [diff] [blame] | 5914 | int max_level = (tp_features.bright_16levels) ? 15 : 7; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5915 | |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5916 | level = brightness_get(NULL); |
| 5917 | if (level < 0) |
| 5918 | return level; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5919 | |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5920 | while ((cmd = next_cmd(&buf))) { |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5921 | if (strlencmp(cmd, "up") == 0) { |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5922 | if (level < max_level) |
| 5923 | level++; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5924 | } else if (strlencmp(cmd, "down") == 0) { |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5925 | if (level > 0) |
| 5926 | level--; |
| 5927 | } else if (sscanf(cmd, "level %d", &level) == 1 && |
| 5928 | level >= 0 && level <= max_level) { |
| 5929 | /* new level set */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5930 | } else |
| 5931 | return -EINVAL; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5932 | } |
| 5933 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5934 | tpacpi_disclose_usertask("procfs brightness", |
| 5935 | "set level to %d\n", level); |
| 5936 | |
Henrique de Moraes Holschuh | 4273af8 | 2007-10-30 17:46:25 -0200 | [diff] [blame] | 5937 | /* |
| 5938 | * Now we know what the final level should be, so we try to set it. |
| 5939 | * Doing it this way makes the syscall restartable in case of EINTR |
| 5940 | */ |
| 5941 | rc = brightness_set(level); |
| 5942 | return (rc == -EINTR)? ERESTARTSYS : rc; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5943 | } |
| 5944 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5945 | static struct ibm_struct brightness_driver_data = { |
| 5946 | .name = "brightness", |
| 5947 | .read = brightness_read, |
| 5948 | .write = brightness_write, |
| 5949 | .exit = brightness_exit, |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 5950 | .suspend = brightness_suspend, |
| 5951 | .shutdown = brightness_shutdown, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 5952 | }; |
| 5953 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 5954 | /************************************************************************* |
| 5955 | * Volume subdriver |
| 5956 | */ |
| 5957 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 5958 | static int volume_offset = 0x30; |
| 5959 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5960 | static int volume_read(char *p) |
| 5961 | { |
| 5962 | int len = 0; |
| 5963 | u8 level; |
| 5964 | |
| 5965 | if (!acpi_ec_read(volume_offset, &level)) { |
| 5966 | len += sprintf(p + len, "level:\t\tunreadable\n"); |
| 5967 | } else { |
| 5968 | len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); |
| 5969 | len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); |
| 5970 | len += sprintf(p + len, "commands:\tup, down, mute\n"); |
| 5971 | len += sprintf(p + len, "commands:\tlevel <level>" |
| 5972 | " (<level> is 0-15)\n"); |
| 5973 | } |
| 5974 | |
| 5975 | return len; |
| 5976 | } |
| 5977 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 5978 | static int volume_write(char *buf) |
| 5979 | { |
| 5980 | int cmos_cmd, inc, i; |
| 5981 | u8 level, mute; |
| 5982 | int new_level, new_mute; |
| 5983 | char *cmd; |
| 5984 | |
| 5985 | while ((cmd = next_cmd(&buf))) { |
| 5986 | if (!acpi_ec_read(volume_offset, &level)) |
| 5987 | return -EIO; |
| 5988 | new_mute = mute = level & 0x40; |
| 5989 | new_level = level = level & 0xf; |
| 5990 | |
| 5991 | if (strlencmp(cmd, "up") == 0) { |
| 5992 | if (mute) |
| 5993 | new_mute = 0; |
| 5994 | else |
| 5995 | new_level = level == 15 ? 15 : level + 1; |
| 5996 | } else if (strlencmp(cmd, "down") == 0) { |
| 5997 | if (mute) |
| 5998 | new_mute = 0; |
| 5999 | else |
| 6000 | new_level = level == 0 ? 0 : level - 1; |
| 6001 | } else if (sscanf(cmd, "level %d", &new_level) == 1 && |
| 6002 | new_level >= 0 && new_level <= 15) { |
| 6003 | /* new_level set */ |
| 6004 | } else if (strlencmp(cmd, "mute") == 0) { |
| 6005 | new_mute = 0x40; |
| 6006 | } else |
| 6007 | return -EINVAL; |
| 6008 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6009 | if (new_level != level) { |
| 6010 | /* mute doesn't change */ |
| 6011 | |
| 6012 | cmos_cmd = (new_level > level) ? |
| 6013 | TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6014 | inc = new_level > level ? 1 : -1; |
| 6015 | |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 6016 | if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6017 | !acpi_ec_write(volume_offset, level))) |
| 6018 | return -EIO; |
| 6019 | |
| 6020 | for (i = level; i != new_level; i += inc) |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 6021 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6022 | !acpi_ec_write(volume_offset, i + inc)) |
| 6023 | return -EIO; |
| 6024 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6025 | if (mute && |
| 6026 | (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || |
| 6027 | !acpi_ec_write(volume_offset, new_level + mute))) { |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6028 | return -EIO; |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6029 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6030 | } |
| 6031 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6032 | if (new_mute != mute) { |
| 6033 | /* level doesn't change */ |
| 6034 | |
| 6035 | cmos_cmd = (new_mute) ? |
| 6036 | TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6037 | |
Henrique de Moraes Holschuh | c9bea99 | 2007-04-21 11:08:42 -0300 | [diff] [blame] | 6038 | if (issue_thinkpad_cmos_command(cmos_cmd) || |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 6039 | !acpi_ec_write(volume_offset, level + new_mute)) |
| 6040 | return -EIO; |
| 6041 | } |
| 6042 | } |
| 6043 | |
| 6044 | return 0; |
| 6045 | } |
| 6046 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 6047 | static struct ibm_struct volume_driver_data = { |
| 6048 | .name = "volume", |
| 6049 | .read = volume_read, |
| 6050 | .write = volume_write, |
| 6051 | }; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6052 | |
| 6053 | /************************************************************************* |
| 6054 | * Fan subdriver |
| 6055 | */ |
| 6056 | |
| 6057 | /* |
| 6058 | * FAN ACCESS MODES |
| 6059 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6060 | * TPACPI_FAN_RD_ACPI_GFAN: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6061 | * ACPI GFAN method: returns fan level |
| 6062 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6063 | * see TPACPI_FAN_WR_ACPI_SFAN |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6064 | * EC 0x2f (HFSP) not available if GFAN exists |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6065 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6066 | * TPACPI_FAN_WR_ACPI_SFAN: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6067 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
| 6068 | * |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6069 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
| 6070 | * it for writing. |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6071 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6072 | * TPACPI_FAN_WR_TPEC: |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6073 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
| 6074 | * Supported on almost all ThinkPads |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6075 | * |
| 6076 | * Fan speed changes of any sort (including those caused by the |
| 6077 | * disengaged mode) are usually done slowly by the firmware as the |
| 6078 | * maximum ammount of fan duty cycle change per second seems to be |
| 6079 | * limited. |
| 6080 | * |
| 6081 | * Reading is not available if GFAN exists. |
| 6082 | * Writing is not available if SFAN exists. |
| 6083 | * |
| 6084 | * Bits |
| 6085 | * 7 automatic mode engaged; |
| 6086 | * (default operation mode of the ThinkPad) |
| 6087 | * fan level is ignored in this mode. |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6088 | * 6 full speed mode (takes precedence over bit 7); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6089 | * not available on all thinkpads. May disable |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6090 | * the tachometer while the fan controller ramps up |
| 6091 | * the speed (which can take up to a few *minutes*). |
| 6092 | * Speeds up fan to 100% duty-cycle, which is far above |
| 6093 | * the standard RPM levels. It is not impossible that |
| 6094 | * it could cause hardware damage. |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6095 | * 5-3 unused in some models. Extra bits for fan level |
| 6096 | * in others, but still useless as all values above |
| 6097 | * 7 map to the same speed as level 7 in these models. |
| 6098 | * 2-0 fan level (0..7 usually) |
| 6099 | * 0x00 = stop |
| 6100 | * 0x07 = max (set when temperatures critical) |
| 6101 | * Some ThinkPads may have other levels, see |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6102 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6103 | * |
| 6104 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at |
| 6105 | * boot. Apparently the EC does not intialize it, so unless ACPI DSDT |
| 6106 | * does so, its initial value is meaningless (0x07). |
| 6107 | * |
| 6108 | * For firmware bugs, refer to: |
| 6109 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues |
| 6110 | * |
| 6111 | * ---- |
| 6112 | * |
| 6113 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): |
| 6114 | * Main fan tachometer reading (in RPM) |
| 6115 | * |
| 6116 | * This register is present on all ThinkPads with a new-style EC, and |
| 6117 | * it is known not to be present on the A21m/e, and T22, as there is |
| 6118 | * something else in offset 0x84 according to the ACPI DSDT. Other |
| 6119 | * ThinkPads from this same time period (and earlier) probably lack the |
| 6120 | * tachometer as well. |
| 6121 | * |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 6122 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6123 | * was never fixed by IBM to report the EC firmware version string |
| 6124 | * probably support the tachometer (like the early X models), so |
| 6125 | * detecting it is quite hard. We need more data to know for sure. |
| 6126 | * |
| 6127 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings |
| 6128 | * might result. |
| 6129 | * |
Henrique de Moraes Holschuh | f51d1a3 | 2007-04-21 11:08:29 -0300 | [diff] [blame] | 6130 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
| 6131 | * mode. |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6132 | * |
| 6133 | * For firmware bugs, refer to: |
| 6134 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues |
| 6135 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6136 | * TPACPI_FAN_WR_ACPI_FANS: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6137 | * ThinkPad X31, X40, X41. Not available in the X60. |
| 6138 | * |
| 6139 | * FANS ACPI handle: takes three arguments: low speed, medium speed, |
| 6140 | * high speed. ACPI DSDT seems to map these three speeds to levels |
| 6141 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH |
| 6142 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") |
| 6143 | * |
| 6144 | * The speeds are stored on handles |
| 6145 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). |
| 6146 | * |
| 6147 | * There are three default speed sets, acessible as handles: |
| 6148 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
| 6149 | * |
| 6150 | * ACPI DSDT switches which set is in use depending on various |
| 6151 | * factors. |
| 6152 | * |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6153 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6154 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
| 6155 | * but the ACPI tables just mention level 7. |
| 6156 | */ |
| 6157 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 6158 | enum { /* Fan control constants */ |
| 6159 | fan_status_offset = 0x2f, /* EC register 0x2f */ |
| 6160 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) |
| 6161 | * 0x84 must be read before 0x85 */ |
| 6162 | |
| 6163 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ |
| 6164 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ |
| 6165 | |
| 6166 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ |
| 6167 | }; |
| 6168 | |
| 6169 | enum fan_status_access_mode { |
| 6170 | TPACPI_FAN_NONE = 0, /* No fan status or control */ |
| 6171 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ |
| 6172 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ |
| 6173 | }; |
| 6174 | |
| 6175 | enum fan_control_access_mode { |
| 6176 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ |
| 6177 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ |
| 6178 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ |
| 6179 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ |
| 6180 | }; |
| 6181 | |
| 6182 | enum fan_control_commands { |
| 6183 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ |
| 6184 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ |
| 6185 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, |
| 6186 | * and also watchdog cmd */ |
| 6187 | }; |
| 6188 | |
| 6189 | static int fan_control_allowed; |
| 6190 | |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6191 | static enum fan_status_access_mode fan_status_access_mode; |
| 6192 | static enum fan_control_access_mode fan_control_access_mode; |
| 6193 | static enum fan_control_commands fan_control_commands; |
| 6194 | |
Henrique de Moraes Holschuh | 778b4d7 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 6195 | static u8 fan_control_initial_status; |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6196 | static u8 fan_control_desired_level; |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6197 | static u8 fan_control_resume_level; |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 6198 | static int fan_watchdog_maxinterval; |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 6199 | |
| 6200 | static struct mutex fan_mutex; |
| 6201 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 6202 | static void fan_watchdog_fire(struct work_struct *ignored); |
Len Brown | 25c68a3 | 2006-12-08 04:43:41 -0500 | [diff] [blame] | 6203 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 6204 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6205 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
| 6206 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6207 | "\\FSPD", /* 600e/x, 770e, 770x */ |
| 6208 | ); /* all others */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6209 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6210 | "JFNS", /* 770x-JL */ |
| 6211 | ); /* all others */ |
| 6212 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6213 | /* |
Henrique de Moraes Holschuh | 1c2ece7 | 2009-01-11 03:01:08 -0200 | [diff] [blame] | 6214 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the |
| 6215 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could |
| 6216 | * be in auto mode (0x80). |
| 6217 | * |
| 6218 | * This is corrected by any write to HFSP either by the driver, or |
| 6219 | * by the firmware. |
| 6220 | * |
| 6221 | * We assume 0x07 really means auto mode while this quirk is active, |
| 6222 | * as this is far more likely than the ThinkPad being in level 7, |
| 6223 | * which is only used by the firmware during thermal emergencies. |
| 6224 | */ |
| 6225 | |
| 6226 | static void fan_quirk1_detect(void) |
| 6227 | { |
| 6228 | /* In some ThinkPads, neither the EC nor the ACPI |
| 6229 | * DSDT initialize the HFSP register, and it ends up |
| 6230 | * being initially set to 0x07 when it *could* be |
| 6231 | * either 0x07 or 0x80. |
| 6232 | * |
| 6233 | * Enable for TP-1Y (T43), TP-78 (R51e), |
| 6234 | * TP-76 (R52), TP-70 (T43, R52), which are known |
| 6235 | * to be buggy. */ |
| 6236 | if (fan_control_initial_status == 0x07) { |
| 6237 | switch (thinkpad_id.ec_model) { |
| 6238 | case 0x5931: /* TP-1Y */ |
| 6239 | case 0x3837: /* TP-78 */ |
| 6240 | case 0x3637: /* TP-76 */ |
| 6241 | case 0x3037: /* TP-70 */ |
| 6242 | printk(TPACPI_NOTICE |
| 6243 | "fan_init: initial fan status is unknown, " |
| 6244 | "assuming it is in auto mode\n"); |
| 6245 | tp_features.fan_ctrl_status_undef = 1; |
| 6246 | ;; |
| 6247 | } |
| 6248 | } |
| 6249 | } |
| 6250 | |
| 6251 | static void fan_quirk1_handle(u8 *fan_status) |
| 6252 | { |
| 6253 | if (unlikely(tp_features.fan_ctrl_status_undef)) { |
| 6254 | if (*fan_status != fan_control_initial_status) { |
| 6255 | /* something changed the HFSP regisnter since |
| 6256 | * driver init time, so it is not undefined |
| 6257 | * anymore */ |
| 6258 | tp_features.fan_ctrl_status_undef = 0; |
| 6259 | } else { |
| 6260 | /* Return most likely status. In fact, it |
| 6261 | * might be the only possible status */ |
| 6262 | *fan_status = TP_EC_FAN_AUTO; |
| 6263 | } |
| 6264 | } |
| 6265 | } |
| 6266 | |
| 6267 | /* |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6268 | * Call with fan_mutex held |
| 6269 | */ |
| 6270 | static void fan_update_desired_level(u8 status) |
| 6271 | { |
| 6272 | if ((status & |
| 6273 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { |
| 6274 | if (status > 7) |
| 6275 | fan_control_desired_level = 7; |
| 6276 | else |
| 6277 | fan_control_desired_level = status; |
| 6278 | } |
| 6279 | } |
| 6280 | |
| 6281 | static int fan_get_status(u8 *status) |
| 6282 | { |
| 6283 | u8 s; |
| 6284 | |
| 6285 | /* TODO: |
| 6286 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ |
| 6287 | |
| 6288 | switch (fan_status_access_mode) { |
| 6289 | case TPACPI_FAN_RD_ACPI_GFAN: |
| 6290 | /* 570, 600e/x, 770e, 770x */ |
| 6291 | |
| 6292 | if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) |
| 6293 | return -EIO; |
| 6294 | |
| 6295 | if (likely(status)) |
| 6296 | *status = s & 0x07; |
| 6297 | |
| 6298 | break; |
| 6299 | |
| 6300 | case TPACPI_FAN_RD_TPEC: |
| 6301 | /* all except 570, 600e/x, 770e, 770x */ |
| 6302 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) |
| 6303 | return -EIO; |
| 6304 | |
Henrique de Moraes Holschuh | 1c2ece7 | 2009-01-11 03:01:08 -0200 | [diff] [blame] | 6305 | if (likely(status)) { |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6306 | *status = s; |
Henrique de Moraes Holschuh | 1c2ece7 | 2009-01-11 03:01:08 -0200 | [diff] [blame] | 6307 | fan_quirk1_handle(status); |
| 6308 | } |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6309 | |
| 6310 | break; |
| 6311 | |
| 6312 | default: |
| 6313 | return -ENXIO; |
| 6314 | } |
| 6315 | |
| 6316 | return 0; |
| 6317 | } |
| 6318 | |
| 6319 | static int fan_get_status_safe(u8 *status) |
| 6320 | { |
| 6321 | int rc; |
| 6322 | u8 s; |
| 6323 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6324 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6325 | return -ERESTARTSYS; |
| 6326 | rc = fan_get_status(&s); |
| 6327 | if (!rc) |
| 6328 | fan_update_desired_level(s); |
| 6329 | mutex_unlock(&fan_mutex); |
| 6330 | |
| 6331 | if (status) |
| 6332 | *status = s; |
| 6333 | |
| 6334 | return rc; |
| 6335 | } |
| 6336 | |
| 6337 | static int fan_get_speed(unsigned int *speed) |
| 6338 | { |
| 6339 | u8 hi, lo; |
| 6340 | |
| 6341 | switch (fan_status_access_mode) { |
| 6342 | case TPACPI_FAN_RD_TPEC: |
| 6343 | /* all except 570, 600e/x, 770e, 770x */ |
| 6344 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
| 6345 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) |
| 6346 | return -EIO; |
| 6347 | |
| 6348 | if (likely(speed)) |
| 6349 | *speed = (hi << 8) | lo; |
| 6350 | |
| 6351 | break; |
| 6352 | |
| 6353 | default: |
| 6354 | return -ENXIO; |
| 6355 | } |
| 6356 | |
| 6357 | return 0; |
| 6358 | } |
| 6359 | |
| 6360 | static int fan_set_level(int level) |
| 6361 | { |
| 6362 | if (!fan_control_allowed) |
| 6363 | return -EPERM; |
| 6364 | |
| 6365 | switch (fan_control_access_mode) { |
| 6366 | case TPACPI_FAN_WR_ACPI_SFAN: |
| 6367 | if (level >= 0 && level <= 7) { |
| 6368 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) |
| 6369 | return -EIO; |
| 6370 | } else |
| 6371 | return -EINVAL; |
| 6372 | break; |
| 6373 | |
| 6374 | case TPACPI_FAN_WR_ACPI_FANS: |
| 6375 | case TPACPI_FAN_WR_TPEC: |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6376 | if (!(level & TP_EC_FAN_AUTO) && |
| 6377 | !(level & TP_EC_FAN_FULLSPEED) && |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6378 | ((level < 0) || (level > 7))) |
| 6379 | return -EINVAL; |
| 6380 | |
| 6381 | /* safety net should the EC not support AUTO |
| 6382 | * or FULLSPEED mode bits and just ignore them */ |
| 6383 | if (level & TP_EC_FAN_FULLSPEED) |
| 6384 | level |= 7; /* safety min speed 7 */ |
Roel Kluin | 547266e | 2008-02-05 00:24:56 +0100 | [diff] [blame] | 6385 | else if (level & TP_EC_FAN_AUTO) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6386 | level |= 4; /* safety min speed 4 */ |
| 6387 | |
| 6388 | if (!acpi_ec_write(fan_status_offset, level)) |
| 6389 | return -EIO; |
| 6390 | else |
| 6391 | tp_features.fan_ctrl_status_undef = 0; |
| 6392 | break; |
| 6393 | |
| 6394 | default: |
| 6395 | return -ENXIO; |
| 6396 | } |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6397 | |
| 6398 | vdbg_printk(TPACPI_DBG_FAN, |
| 6399 | "fan control: set fan control register to 0x%02x\n", level); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6400 | return 0; |
| 6401 | } |
| 6402 | |
| 6403 | static int fan_set_level_safe(int level) |
| 6404 | { |
| 6405 | int rc; |
| 6406 | |
| 6407 | if (!fan_control_allowed) |
| 6408 | return -EPERM; |
| 6409 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6410 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6411 | return -ERESTARTSYS; |
| 6412 | |
| 6413 | if (level == TPACPI_FAN_LAST_LEVEL) |
| 6414 | level = fan_control_desired_level; |
| 6415 | |
| 6416 | rc = fan_set_level(level); |
| 6417 | if (!rc) |
| 6418 | fan_update_desired_level(level); |
| 6419 | |
| 6420 | mutex_unlock(&fan_mutex); |
| 6421 | return rc; |
| 6422 | } |
| 6423 | |
| 6424 | static int fan_set_enable(void) |
| 6425 | { |
| 6426 | u8 s; |
| 6427 | int rc; |
| 6428 | |
| 6429 | if (!fan_control_allowed) |
| 6430 | return -EPERM; |
| 6431 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6432 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6433 | return -ERESTARTSYS; |
| 6434 | |
| 6435 | switch (fan_control_access_mode) { |
| 6436 | case TPACPI_FAN_WR_ACPI_FANS: |
| 6437 | case TPACPI_FAN_WR_TPEC: |
| 6438 | rc = fan_get_status(&s); |
| 6439 | if (rc < 0) |
| 6440 | break; |
| 6441 | |
| 6442 | /* Don't go out of emergency fan mode */ |
| 6443 | if (s != 7) { |
| 6444 | s &= 0x07; |
| 6445 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ |
| 6446 | } |
| 6447 | |
| 6448 | if (!acpi_ec_write(fan_status_offset, s)) |
| 6449 | rc = -EIO; |
| 6450 | else { |
| 6451 | tp_features.fan_ctrl_status_undef = 0; |
| 6452 | rc = 0; |
| 6453 | } |
| 6454 | break; |
| 6455 | |
| 6456 | case TPACPI_FAN_WR_ACPI_SFAN: |
| 6457 | rc = fan_get_status(&s); |
| 6458 | if (rc < 0) |
| 6459 | break; |
| 6460 | |
| 6461 | s &= 0x07; |
| 6462 | |
| 6463 | /* Set fan to at least level 4 */ |
| 6464 | s |= 4; |
| 6465 | |
| 6466 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6467 | rc = -EIO; |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6468 | else |
| 6469 | rc = 0; |
| 6470 | break; |
| 6471 | |
| 6472 | default: |
| 6473 | rc = -ENXIO; |
| 6474 | } |
| 6475 | |
| 6476 | mutex_unlock(&fan_mutex); |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6477 | |
| 6478 | if (!rc) |
| 6479 | vdbg_printk(TPACPI_DBG_FAN, |
| 6480 | "fan control: set fan control register to 0x%02x\n", |
| 6481 | s); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6482 | return rc; |
| 6483 | } |
| 6484 | |
| 6485 | static int fan_set_disable(void) |
| 6486 | { |
| 6487 | int rc; |
| 6488 | |
| 6489 | if (!fan_control_allowed) |
| 6490 | return -EPERM; |
| 6491 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6492 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6493 | return -ERESTARTSYS; |
| 6494 | |
| 6495 | rc = 0; |
| 6496 | switch (fan_control_access_mode) { |
| 6497 | case TPACPI_FAN_WR_ACPI_FANS: |
| 6498 | case TPACPI_FAN_WR_TPEC: |
| 6499 | if (!acpi_ec_write(fan_status_offset, 0x00)) |
| 6500 | rc = -EIO; |
| 6501 | else { |
| 6502 | fan_control_desired_level = 0; |
| 6503 | tp_features.fan_ctrl_status_undef = 0; |
| 6504 | } |
| 6505 | break; |
| 6506 | |
| 6507 | case TPACPI_FAN_WR_ACPI_SFAN: |
| 6508 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) |
| 6509 | rc = -EIO; |
| 6510 | else |
| 6511 | fan_control_desired_level = 0; |
| 6512 | break; |
| 6513 | |
| 6514 | default: |
| 6515 | rc = -ENXIO; |
| 6516 | } |
| 6517 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6518 | if (!rc) |
| 6519 | vdbg_printk(TPACPI_DBG_FAN, |
| 6520 | "fan control: set fan control register to 0\n"); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6521 | |
| 6522 | mutex_unlock(&fan_mutex); |
| 6523 | return rc; |
| 6524 | } |
| 6525 | |
| 6526 | static int fan_set_speed(int speed) |
| 6527 | { |
| 6528 | int rc; |
| 6529 | |
| 6530 | if (!fan_control_allowed) |
| 6531 | return -EPERM; |
| 6532 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6533 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6534 | return -ERESTARTSYS; |
| 6535 | |
| 6536 | rc = 0; |
| 6537 | switch (fan_control_access_mode) { |
| 6538 | case TPACPI_FAN_WR_ACPI_FANS: |
| 6539 | if (speed >= 0 && speed <= 65535) { |
| 6540 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", |
| 6541 | speed, speed, speed)) |
| 6542 | rc = -EIO; |
| 6543 | } else |
| 6544 | rc = -EINVAL; |
| 6545 | break; |
| 6546 | |
| 6547 | default: |
| 6548 | rc = -ENXIO; |
| 6549 | } |
| 6550 | |
| 6551 | mutex_unlock(&fan_mutex); |
| 6552 | return rc; |
| 6553 | } |
| 6554 | |
| 6555 | static void fan_watchdog_reset(void) |
| 6556 | { |
| 6557 | static int fan_watchdog_active; |
| 6558 | |
| 6559 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
| 6560 | return; |
| 6561 | |
| 6562 | if (fan_watchdog_active) |
| 6563 | cancel_delayed_work(&fan_watchdog_task); |
| 6564 | |
| 6565 | if (fan_watchdog_maxinterval > 0 && |
| 6566 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) { |
| 6567 | fan_watchdog_active = 1; |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 6568 | if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6569 | msecs_to_jiffies(fan_watchdog_maxinterval |
| 6570 | * 1000))) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6571 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 6572 | "failed to queue the fan watchdog, " |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6573 | "watchdog will not trigger\n"); |
| 6574 | } |
| 6575 | } else |
| 6576 | fan_watchdog_active = 0; |
| 6577 | } |
| 6578 | |
| 6579 | static void fan_watchdog_fire(struct work_struct *ignored) |
| 6580 | { |
| 6581 | int rc; |
| 6582 | |
| 6583 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
| 6584 | return; |
| 6585 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6586 | printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6587 | rc = fan_set_enable(); |
| 6588 | if (rc < 0) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6589 | printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 6590 | "will try again later...\n", -rc); |
| 6591 | /* reschedule for later */ |
| 6592 | fan_watchdog_reset(); |
| 6593 | } |
| 6594 | } |
| 6595 | |
| 6596 | /* |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6597 | * SYSFS fan layout: hwmon compatible (device) |
| 6598 | * |
| 6599 | * pwm*_enable: |
| 6600 | * 0: "disengaged" mode |
| 6601 | * 1: manual mode |
| 6602 | * 2: native EC "auto" mode (recommended, hardware default) |
| 6603 | * |
| 6604 | * pwm*: set speed in manual mode, ignored otherwise. |
| 6605 | * 0 is level 0; 255 is level 7. Intermediate points done with linear |
| 6606 | * interpolation. |
| 6607 | * |
| 6608 | * fan*_input: tachometer reading, RPM |
| 6609 | * |
| 6610 | * |
| 6611 | * SYSFS fan layout: extensions |
| 6612 | * |
| 6613 | * fan_watchdog (driver): |
| 6614 | * fan watchdog interval in seconds, 0 disables (default), max 120 |
| 6615 | */ |
| 6616 | |
| 6617 | /* sysfs fan pwm1_enable ----------------------------------------------- */ |
| 6618 | static ssize_t fan_pwm1_enable_show(struct device *dev, |
| 6619 | struct device_attribute *attr, |
| 6620 | char *buf) |
| 6621 | { |
| 6622 | int res, mode; |
| 6623 | u8 status; |
| 6624 | |
| 6625 | res = fan_get_status_safe(&status); |
| 6626 | if (res) |
| 6627 | return res; |
| 6628 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6629 | if (status & TP_EC_FAN_FULLSPEED) { |
| 6630 | mode = 0; |
| 6631 | } else if (status & TP_EC_FAN_AUTO) { |
| 6632 | mode = 2; |
| 6633 | } else |
| 6634 | mode = 1; |
| 6635 | |
| 6636 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); |
| 6637 | } |
| 6638 | |
| 6639 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
| 6640 | struct device_attribute *attr, |
| 6641 | const char *buf, size_t count) |
| 6642 | { |
| 6643 | unsigned long t; |
| 6644 | int res, level; |
| 6645 | |
| 6646 | if (parse_strtoul(buf, 2, &t)) |
| 6647 | return -EINVAL; |
| 6648 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6649 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
| 6650 | "set fan mode to %lu\n", t); |
| 6651 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6652 | switch (t) { |
| 6653 | case 0: |
| 6654 | level = TP_EC_FAN_FULLSPEED; |
| 6655 | break; |
| 6656 | case 1: |
| 6657 | level = TPACPI_FAN_LAST_LEVEL; |
| 6658 | break; |
| 6659 | case 2: |
| 6660 | level = TP_EC_FAN_AUTO; |
| 6661 | break; |
| 6662 | case 3: |
| 6663 | /* reserved for software-controlled auto mode */ |
| 6664 | return -ENOSYS; |
| 6665 | default: |
| 6666 | return -EINVAL; |
| 6667 | } |
| 6668 | |
| 6669 | res = fan_set_level_safe(level); |
Henrique de Moraes Holschuh | c573ddb | 2007-04-27 22:00:12 -0300 | [diff] [blame] | 6670 | if (res == -ENXIO) |
| 6671 | return -EINVAL; |
| 6672 | else if (res < 0) |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6673 | return res; |
| 6674 | |
| 6675 | fan_watchdog_reset(); |
| 6676 | |
| 6677 | return count; |
| 6678 | } |
| 6679 | |
| 6680 | static struct device_attribute dev_attr_fan_pwm1_enable = |
| 6681 | __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
| 6682 | fan_pwm1_enable_show, fan_pwm1_enable_store); |
| 6683 | |
| 6684 | /* sysfs fan pwm1 ------------------------------------------------------ */ |
| 6685 | static ssize_t fan_pwm1_show(struct device *dev, |
| 6686 | struct device_attribute *attr, |
| 6687 | char *buf) |
| 6688 | { |
| 6689 | int res; |
| 6690 | u8 status; |
| 6691 | |
| 6692 | res = fan_get_status_safe(&status); |
| 6693 | if (res) |
| 6694 | return res; |
| 6695 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6696 | if ((status & |
| 6697 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) |
| 6698 | status = fan_control_desired_level; |
| 6699 | |
| 6700 | if (status > 7) |
| 6701 | status = 7; |
| 6702 | |
| 6703 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
| 6704 | } |
| 6705 | |
| 6706 | static ssize_t fan_pwm1_store(struct device *dev, |
| 6707 | struct device_attribute *attr, |
| 6708 | const char *buf, size_t count) |
| 6709 | { |
| 6710 | unsigned long s; |
| 6711 | int rc; |
| 6712 | u8 status, newlevel; |
| 6713 | |
| 6714 | if (parse_strtoul(buf, 255, &s)) |
| 6715 | return -EINVAL; |
| 6716 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6717 | tpacpi_disclose_usertask("hwmon pwm1", |
| 6718 | "set fan speed to %lu\n", s); |
| 6719 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6720 | /* scale down from 0-255 to 0-7 */ |
| 6721 | newlevel = (s >> 5) & 0x07; |
| 6722 | |
Henrique de Moraes Holschuh | 7646ea8 | 2009-01-11 03:01:04 -0200 | [diff] [blame] | 6723 | if (mutex_lock_killable(&fan_mutex)) |
Henrique de Moraes Holschuh | fc589a3 | 2007-10-30 17:46:24 -0200 | [diff] [blame] | 6724 | return -ERESTARTSYS; |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6725 | |
| 6726 | rc = fan_get_status(&status); |
| 6727 | if (!rc && (status & |
| 6728 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { |
| 6729 | rc = fan_set_level(newlevel); |
Henrique de Moraes Holschuh | c573ddb | 2007-04-27 22:00:12 -0300 | [diff] [blame] | 6730 | if (rc == -ENXIO) |
| 6731 | rc = -EINVAL; |
| 6732 | else if (!rc) { |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6733 | fan_update_desired_level(newlevel); |
Henrique de Moraes Holschuh | ca4ac2f | 2007-04-27 22:00:11 -0300 | [diff] [blame] | 6734 | fan_watchdog_reset(); |
| 6735 | } |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6736 | } |
| 6737 | |
| 6738 | mutex_unlock(&fan_mutex); |
| 6739 | return (rc)? rc : count; |
| 6740 | } |
| 6741 | |
| 6742 | static struct device_attribute dev_attr_fan_pwm1 = |
| 6743 | __ATTR(pwm1, S_IWUSR | S_IRUGO, |
| 6744 | fan_pwm1_show, fan_pwm1_store); |
| 6745 | |
| 6746 | /* sysfs fan fan1_input ------------------------------------------------ */ |
| 6747 | static ssize_t fan_fan1_input_show(struct device *dev, |
| 6748 | struct device_attribute *attr, |
| 6749 | char *buf) |
| 6750 | { |
| 6751 | int res; |
| 6752 | unsigned int speed; |
| 6753 | |
| 6754 | res = fan_get_speed(&speed); |
| 6755 | if (res < 0) |
| 6756 | return res; |
| 6757 | |
| 6758 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
| 6759 | } |
| 6760 | |
| 6761 | static struct device_attribute dev_attr_fan_fan1_input = |
| 6762 | __ATTR(fan1_input, S_IRUGO, |
| 6763 | fan_fan1_input_show, NULL); |
| 6764 | |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 6765 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6766 | static ssize_t fan_fan_watchdog_show(struct device_driver *drv, |
| 6767 | char *buf) |
| 6768 | { |
| 6769 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); |
| 6770 | } |
| 6771 | |
| 6772 | static ssize_t fan_fan_watchdog_store(struct device_driver *drv, |
| 6773 | const char *buf, size_t count) |
| 6774 | { |
| 6775 | unsigned long t; |
| 6776 | |
| 6777 | if (parse_strtoul(buf, 120, &t)) |
| 6778 | return -EINVAL; |
| 6779 | |
Henrique de Moraes Holschuh | ecf2a80 | 2007-04-27 22:00:09 -0300 | [diff] [blame] | 6780 | if (!fan_control_allowed) |
| 6781 | return -EPERM; |
| 6782 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6783 | fan_watchdog_maxinterval = t; |
| 6784 | fan_watchdog_reset(); |
| 6785 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6786 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
| 6787 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6788 | return count; |
| 6789 | } |
| 6790 | |
| 6791 | static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, |
| 6792 | fan_fan_watchdog_show, fan_fan_watchdog_store); |
| 6793 | |
| 6794 | /* --------------------------------------------------------------------- */ |
| 6795 | static struct attribute *fan_attributes[] = { |
| 6796 | &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, |
| 6797 | &dev_attr_fan_fan1_input.attr, |
| 6798 | NULL |
| 6799 | }; |
| 6800 | |
| 6801 | static const struct attribute_group fan_attr_group = { |
| 6802 | .attrs = fan_attributes, |
| 6803 | }; |
| 6804 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 6805 | static int __init fan_init(struct ibm_init_struct *iibm) |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6806 | { |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6807 | int rc; |
| 6808 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6809 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
| 6810 | "initializing fan subdriver\n"); |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 6811 | |
Henrique de Moraes Holschuh | 40ca9fd | 2007-04-24 11:48:15 -0300 | [diff] [blame] | 6812 | mutex_init(&fan_mutex); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6813 | fan_status_access_mode = TPACPI_FAN_NONE; |
| 6814 | fan_control_access_mode = TPACPI_FAN_WR_NONE; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6815 | fan_control_commands = 0; |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 6816 | fan_watchdog_maxinterval = 0; |
Henrique de Moraes Holschuh | d8fd94d | 2007-04-21 11:08:36 -0300 | [diff] [blame] | 6817 | tp_features.fan_ctrl_status_undef = 0; |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6818 | fan_control_desired_level = 7; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6819 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6820 | TPACPI_ACPIHANDLE_INIT(fans); |
| 6821 | TPACPI_ACPIHANDLE_INIT(gfan); |
| 6822 | TPACPI_ACPIHANDLE_INIT(sfan); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 6823 | |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6824 | if (gfan_handle) { |
| 6825 | /* 570, 600e/x, 770e, 770x */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6826 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6827 | } else { |
| 6828 | /* all other ThinkPads: note that even old-style |
| 6829 | * ThinkPad ECs supports the fan control register */ |
Henrique de Moraes Holschuh | 778b4d7 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 6830 | if (likely(acpi_ec_read(fan_status_offset, |
| 6831 | &fan_control_initial_status))) { |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6832 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; |
Henrique de Moraes Holschuh | 1c2ece7 | 2009-01-11 03:01:08 -0200 | [diff] [blame] | 6833 | fan_quirk1_detect(); |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6834 | } else { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 6835 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6836 | "ThinkPad ACPI EC access misbehaving, " |
| 6837 | "fan status and control unavailable\n"); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 6838 | return 1; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6839 | } |
| 6840 | } |
| 6841 | |
| 6842 | if (sfan_handle) { |
| 6843 | /* 570, 770x-JL */ |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6844 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; |
Henrique de Moraes Holschuh | 1c6a334 | 2006-11-24 11:47:12 -0200 | [diff] [blame] | 6845 | fan_control_commands |= |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6846 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6847 | } else { |
| 6848 | if (!gfan_handle) { |
| 6849 | /* gfan without sfan means no fan control */ |
| 6850 | /* all other models implement TP EC 0x2f control */ |
| 6851 | |
| 6852 | if (fans_handle) { |
Henrique de Moraes Holschuh | a8b7a66 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 6853 | /* X31, X40, X41 */ |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6854 | fan_control_access_mode = |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6855 | TPACPI_FAN_WR_ACPI_FANS; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6856 | fan_control_commands |= |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6857 | TPACPI_FAN_CMD_SPEED | |
| 6858 | TPACPI_FAN_CMD_LEVEL | |
| 6859 | TPACPI_FAN_CMD_ENABLE; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6860 | } else { |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6861 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; |
Henrique de Moraes Holschuh | a12095c | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 6862 | fan_control_commands |= |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 6863 | TPACPI_FAN_CMD_LEVEL | |
| 6864 | TPACPI_FAN_CMD_ENABLE; |
Henrique de Moraes Holschuh | 69ba91c | 2006-11-24 11:47:09 -0200 | [diff] [blame] | 6865 | } |
| 6866 | } |
| 6867 | } |
| 6868 | |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6869 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
| 6870 | "fan is %s, modes %d, %d\n", |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 6871 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
| 6872 | fan_control_access_mode != TPACPI_FAN_WR_NONE), |
| 6873 | fan_status_access_mode, fan_control_access_mode); |
| 6874 | |
Henrique de Moraes Holschuh | ecf2a80 | 2007-04-27 22:00:09 -0300 | [diff] [blame] | 6875 | /* fan control master switch */ |
| 6876 | if (!fan_control_allowed) { |
| 6877 | fan_control_access_mode = TPACPI_FAN_WR_NONE; |
| 6878 | fan_control_commands = 0; |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6879 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
Henrique de Moraes Holschuh | ecf2a80 | 2007-04-27 22:00:09 -0300 | [diff] [blame] | 6880 | "fan control features disabled by parameter\n"); |
| 6881 | } |
| 6882 | |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6883 | /* update fan_control_desired_level */ |
| 6884 | if (fan_status_access_mode != TPACPI_FAN_NONE) |
| 6885 | fan_get_status_safe(NULL); |
| 6886 | |
| 6887 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
| 6888 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 6889 | rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6890 | &fan_attr_group); |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6891 | if (rc < 0) |
| 6892 | return rc; |
Henrique de Moraes Holschuh | 9c0a76e | 2008-06-03 23:36:10 -0300 | [diff] [blame] | 6893 | |
| 6894 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, |
| 6895 | &driver_attr_fan_watchdog); |
| 6896 | if (rc < 0) { |
| 6897 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, |
| 6898 | &fan_attr_group); |
| 6899 | return rc; |
| 6900 | } |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6901 | return 0; |
| 6902 | } else |
| 6903 | return 1; |
| 6904 | } |
| 6905 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6906 | static void fan_exit(void) |
| 6907 | { |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 6908 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6909 | "cancelling any pending fan watchdog tasks\n"); |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6910 | |
| 6911 | /* FIXME: can we really do this unconditionally? */ |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 6912 | sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 6913 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
| 6914 | &driver_attr_fan_watchdog); |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 6915 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6916 | cancel_delayed_work(&fan_watchdog_task); |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 6917 | flush_workqueue(tpacpi_wq); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6918 | } |
| 6919 | |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6920 | static void fan_suspend(pm_message_t state) |
| 6921 | { |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6922 | int rc; |
| 6923 | |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6924 | if (!fan_control_allowed) |
| 6925 | return; |
| 6926 | |
| 6927 | /* Store fan status in cache */ |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6928 | fan_control_resume_level = 0; |
| 6929 | rc = fan_get_status_safe(&fan_control_resume_level); |
| 6930 | if (rc < 0) |
| 6931 | printk(TPACPI_NOTICE |
| 6932 | "failed to read fan level for later " |
| 6933 | "restore during resume: %d\n", rc); |
| 6934 | |
| 6935 | /* if it is undefined, don't attempt to restore it. |
| 6936 | * KEEP THIS LAST */ |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6937 | if (tp_features.fan_ctrl_status_undef) |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6938 | fan_control_resume_level = 0; |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6939 | } |
| 6940 | |
| 6941 | static void fan_resume(void) |
| 6942 | { |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6943 | u8 current_level = 7; |
| 6944 | bool do_set = false; |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6945 | int rc; |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6946 | |
| 6947 | /* DSDT *always* updates status on resume */ |
| 6948 | tp_features.fan_ctrl_status_undef = 0; |
| 6949 | |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6950 | if (!fan_control_allowed || |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6951 | !fan_control_resume_level || |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6952 | (fan_get_status_safe(¤t_level) < 0)) |
| 6953 | return; |
| 6954 | |
| 6955 | switch (fan_control_access_mode) { |
| 6956 | case TPACPI_FAN_WR_ACPI_SFAN: |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6957 | /* never decrease fan level */ |
| 6958 | do_set = (fan_control_resume_level > current_level); |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6959 | break; |
| 6960 | case TPACPI_FAN_WR_ACPI_FANS: |
| 6961 | case TPACPI_FAN_WR_TPEC: |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6962 | /* never decrease fan level, scale is: |
| 6963 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO |
| 6964 | * |
| 6965 | * We expect the firmware to set either 7 or AUTO, but we |
| 6966 | * handle FULLSPEED out of paranoia. |
| 6967 | * |
| 6968 | * So, we can safely only restore FULLSPEED or 7, anything |
| 6969 | * else could slow the fan. Restoring AUTO is useless, at |
| 6970 | * best that's exactly what the DSDT already set (it is the |
| 6971 | * slower it uses). |
| 6972 | * |
| 6973 | * Always keep in mind that the DSDT *will* have set the |
| 6974 | * fans to what the vendor supposes is the best level. We |
| 6975 | * muck with it only to speed the fan up. |
| 6976 | */ |
| 6977 | if (fan_control_resume_level != 7 && |
| 6978 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) |
| 6979 | return; |
| 6980 | else |
| 6981 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && |
| 6982 | (current_level != fan_control_resume_level); |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6983 | break; |
| 6984 | default: |
| 6985 | return; |
| 6986 | } |
| 6987 | if (do_set) { |
| 6988 | printk(TPACPI_NOTICE |
| 6989 | "restoring fan level to 0x%02x\n", |
Henrique de Moraes Holschuh | 0081b16 | 2008-11-09 10:54:02 -0200 | [diff] [blame] | 6990 | fan_control_resume_level); |
| 6991 | rc = fan_set_level_safe(fan_control_resume_level); |
| 6992 | if (rc < 0) |
| 6993 | printk(TPACPI_NOTICE |
| 6994 | "failed to restore fan level: %d\n", rc); |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 6995 | } |
| 6996 | } |
| 6997 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 6998 | static int fan_read(char *p) |
| 6999 | { |
| 7000 | int len = 0; |
| 7001 | int rc; |
| 7002 | u8 status; |
| 7003 | unsigned int speed = 0; |
| 7004 | |
| 7005 | switch (fan_status_access_mode) { |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7006 | case TPACPI_FAN_RD_ACPI_GFAN: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7007 | /* 570, 600e/x, 770e, 770x */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7008 | rc = fan_get_status_safe(&status); |
| 7009 | if (rc < 0) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7010 | return rc; |
| 7011 | |
| 7012 | len += sprintf(p + len, "status:\t\t%s\n" |
| 7013 | "level:\t\t%d\n", |
| 7014 | (status != 0) ? "enabled" : "disabled", status); |
| 7015 | break; |
| 7016 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7017 | case TPACPI_FAN_RD_TPEC: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7018 | /* all except 570, 600e/x, 770e, 770x */ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7019 | rc = fan_get_status_safe(&status); |
| 7020 | if (rc < 0) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7021 | return rc; |
| 7022 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7023 | len += sprintf(p + len, "status:\t\t%s\n", |
| 7024 | (status != 0) ? "enabled" : "disabled"); |
| 7025 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7026 | rc = fan_get_speed(&speed); |
| 7027 | if (rc < 0) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7028 | return rc; |
| 7029 | |
| 7030 | len += sprintf(p + len, "speed:\t\t%d\n", speed); |
| 7031 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7032 | if (status & TP_EC_FAN_FULLSPEED) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7033 | /* Disengaged mode takes precedence */ |
| 7034 | len += sprintf(p + len, "level:\t\tdisengaged\n"); |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7035 | else if (status & TP_EC_FAN_AUTO) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7036 | len += sprintf(p + len, "level:\t\tauto\n"); |
| 7037 | else |
| 7038 | len += sprintf(p + len, "level:\t\t%d\n", status); |
| 7039 | break; |
| 7040 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7041 | case TPACPI_FAN_NONE: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7042 | default: |
| 7043 | len += sprintf(p + len, "status:\t\tnot supported\n"); |
| 7044 | } |
| 7045 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7046 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7047 | len += sprintf(p + len, "commands:\tlevel <level>"); |
| 7048 | |
| 7049 | switch (fan_control_access_mode) { |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7050 | case TPACPI_FAN_WR_ACPI_SFAN: |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7051 | len += sprintf(p + len, " (<level> is 0-7)\n"); |
| 7052 | break; |
| 7053 | |
| 7054 | default: |
| 7055 | len += sprintf(p + len, " (<level> is 0-7, " |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 7056 | "auto, disengaged, full-speed)\n"); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7057 | break; |
| 7058 | } |
| 7059 | } |
| 7060 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7061 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7062 | len += sprintf(p + len, "commands:\tenable, disable\n" |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7063 | "commands:\twatchdog <timeout> (<timeout> " |
| 7064 | "is 0 (off), 1-120 (seconds))\n"); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7065 | |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7066 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7067 | len += sprintf(p + len, "commands:\tspeed <speed>" |
| 7068 | " (<speed> is 0-65535)\n"); |
| 7069 | |
| 7070 | return len; |
| 7071 | } |
| 7072 | |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7073 | static int fan_write_cmd_level(const char *cmd, int *rc) |
| 7074 | { |
| 7075 | int level; |
| 7076 | |
Henrique de Moraes Holschuh | a12095c | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 7077 | if (strlencmp(cmd, "level auto") == 0) |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7078 | level = TP_EC_FAN_AUTO; |
Henrique de Moraes Holschuh | fe98a52 | 2007-04-24 11:48:17 -0300 | [diff] [blame] | 7079 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7080 | (strlencmp(cmd, "level full-speed") == 0)) |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7081 | level = TP_EC_FAN_FULLSPEED; |
Henrique de Moraes Holschuh | a12095c | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 7082 | else if (sscanf(cmd, "level %d", &level) != 1) |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7083 | return 0; |
| 7084 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7085 | *rc = fan_set_level_safe(level); |
| 7086 | if (*rc == -ENXIO) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7087 | printk(TPACPI_ERR "level command accepted for unsupported " |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7088 | "access mode %d", fan_control_access_mode); |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7089 | else if (!*rc) |
| 7090 | tpacpi_disclose_usertask("procfs fan", |
| 7091 | "set level to %d\n", level); |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7092 | |
| 7093 | return 1; |
| 7094 | } |
| 7095 | |
| 7096 | static int fan_write_cmd_enable(const char *cmd, int *rc) |
| 7097 | { |
| 7098 | if (strlencmp(cmd, "enable") != 0) |
| 7099 | return 0; |
| 7100 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7101 | *rc = fan_set_enable(); |
| 7102 | if (*rc == -ENXIO) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7103 | printk(TPACPI_ERR "enable command accepted for unsupported " |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7104 | "access mode %d", fan_control_access_mode); |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7105 | else if (!*rc) |
| 7106 | tpacpi_disclose_usertask("procfs fan", "enable\n"); |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7107 | |
| 7108 | return 1; |
| 7109 | } |
| 7110 | |
| 7111 | static int fan_write_cmd_disable(const char *cmd, int *rc) |
| 7112 | { |
| 7113 | if (strlencmp(cmd, "disable") != 0) |
| 7114 | return 0; |
| 7115 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7116 | *rc = fan_set_disable(); |
| 7117 | if (*rc == -ENXIO) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7118 | printk(TPACPI_ERR "disable command accepted for unsupported " |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7119 | "access mode %d", fan_control_access_mode); |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7120 | else if (!*rc) |
| 7121 | tpacpi_disclose_usertask("procfs fan", "disable\n"); |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7122 | |
| 7123 | return 1; |
| 7124 | } |
| 7125 | |
| 7126 | static int fan_write_cmd_speed(const char *cmd, int *rc) |
| 7127 | { |
| 7128 | int speed; |
| 7129 | |
Henrique de Moraes Holschuh | a8b7a66 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7130 | /* TODO: |
| 7131 | * Support speed <low> <medium> <high> ? */ |
| 7132 | |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7133 | if (sscanf(cmd, "speed %d", &speed) != 1) |
| 7134 | return 0; |
| 7135 | |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7136 | *rc = fan_set_speed(speed); |
| 7137 | if (*rc == -ENXIO) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7138 | printk(TPACPI_ERR "speed command accepted for unsupported " |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7139 | "access mode %d", fan_control_access_mode); |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7140 | else if (!*rc) |
| 7141 | tpacpi_disclose_usertask("procfs fan", |
| 7142 | "set speed to %d\n", speed); |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7143 | |
| 7144 | return 1; |
| 7145 | } |
| 7146 | |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 7147 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
| 7148 | { |
| 7149 | int interval; |
| 7150 | |
| 7151 | if (sscanf(cmd, "watchdog %d", &interval) != 1) |
| 7152 | return 0; |
| 7153 | |
| 7154 | if (interval < 0 || interval > 120) |
| 7155 | *rc = -EINVAL; |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7156 | else { |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 7157 | fan_watchdog_maxinterval = interval; |
Henrique de Moraes Holschuh | 74a60c0 | 2009-04-04 04:25:52 +0000 | [diff] [blame] | 7158 | tpacpi_disclose_usertask("procfs fan", |
| 7159 | "set watchdog timer to %d\n", |
| 7160 | interval); |
| 7161 | } |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 7162 | |
| 7163 | return 1; |
| 7164 | } |
| 7165 | |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7166 | static int fan_write(char *buf) |
| 7167 | { |
| 7168 | char *cmd; |
| 7169 | int rc = 0; |
| 7170 | |
| 7171 | while (!rc && (cmd = next_cmd(&buf))) { |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7172 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7173 | fan_write_cmd_level(cmd, &rc)) && |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7174 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7175 | (fan_write_cmd_enable(cmd, &rc) || |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 7176 | fan_write_cmd_disable(cmd, &rc) || |
| 7177 | fan_write_cmd_watchdog(cmd, &rc))) && |
Henrique de Moraes Holschuh | efa2714 | 2007-04-21 11:08:28 -0300 | [diff] [blame] | 7178 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7179 | fan_write_cmd_speed(cmd, &rc)) |
| 7180 | ) |
| 7181 | rc = -EINVAL; |
Henrique de Moraes Holschuh | 16663a8 | 2006-11-24 11:47:14 -0200 | [diff] [blame] | 7182 | else if (!rc) |
| 7183 | fan_watchdog_reset(); |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7184 | } |
| 7185 | |
Henrique de Moraes Holschuh | 18ad799 | 2006-11-24 11:47:11 -0200 | [diff] [blame] | 7186 | return rc; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7187 | } |
| 7188 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7189 | static struct ibm_struct fan_driver_data = { |
| 7190 | .name = "fan", |
| 7191 | .read = fan_read, |
| 7192 | .write = fan_write, |
| 7193 | .exit = fan_exit, |
Henrique de Moraes Holschuh | 75700e5 | 2008-10-18 14:23:52 -0300 | [diff] [blame] | 7194 | .suspend = fan_suspend, |
| 7195 | .resume = fan_resume, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7196 | }; |
| 7197 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7198 | /**************************************************************************** |
| 7199 | **************************************************************************** |
| 7200 | * |
| 7201 | * Infrastructure |
| 7202 | * |
| 7203 | **************************************************************************** |
| 7204 | ****************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7205 | |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7206 | /* sysfs name ---------------------------------------------------------- */ |
| 7207 | static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, |
| 7208 | struct device_attribute *attr, |
| 7209 | char *buf) |
| 7210 | { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7211 | return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7212 | } |
| 7213 | |
| 7214 | static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = |
| 7215 | __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); |
| 7216 | |
| 7217 | /* --------------------------------------------------------------------- */ |
| 7218 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7219 | /* /proc support */ |
Henrique de Moraes Holschuh | 94954cc | 2007-07-18 23:45:27 -0300 | [diff] [blame] | 7220 | static struct proc_dir_entry *proc_dir; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7221 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7222 | /* |
| 7223 | * Module and infrastructure proble, init and exit handling |
| 7224 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7225 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 7226 | static int force_load; |
| 7227 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7228 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7229 | static const char * __init str_supported(int is_supported) |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7230 | { |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7231 | static char text_unsupported[] __initdata = "not supported"; |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7232 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7233 | return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7234 | } |
| 7235 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ |
| 7236 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 7237 | static void ibm_exit(struct ibm_struct *ibm) |
| 7238 | { |
| 7239 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); |
| 7240 | |
| 7241 | list_del_init(&ibm->all_drivers); |
| 7242 | |
| 7243 | if (ibm->flags.acpi_notify_installed) { |
| 7244 | dbg_printk(TPACPI_DBG_EXIT, |
| 7245 | "%s: acpi_remove_notify_handler\n", ibm->name); |
| 7246 | BUG_ON(!ibm->acpi); |
| 7247 | acpi_remove_notify_handler(*ibm->acpi->handle, |
| 7248 | ibm->acpi->type, |
| 7249 | dispatch_acpi_notify); |
| 7250 | ibm->flags.acpi_notify_installed = 0; |
| 7251 | ibm->flags.acpi_notify_installed = 0; |
| 7252 | } |
| 7253 | |
| 7254 | if (ibm->flags.proc_created) { |
| 7255 | dbg_printk(TPACPI_DBG_EXIT, |
| 7256 | "%s: remove_proc_entry\n", ibm->name); |
| 7257 | remove_proc_entry(ibm->name, proc_dir); |
| 7258 | ibm->flags.proc_created = 0; |
| 7259 | } |
| 7260 | |
| 7261 | if (ibm->flags.acpi_driver_registered) { |
| 7262 | dbg_printk(TPACPI_DBG_EXIT, |
| 7263 | "%s: acpi_bus_unregister_driver\n", ibm->name); |
| 7264 | BUG_ON(!ibm->acpi); |
| 7265 | acpi_bus_unregister_driver(ibm->acpi->driver); |
| 7266 | kfree(ibm->acpi->driver); |
| 7267 | ibm->acpi->driver = NULL; |
| 7268 | ibm->flags.acpi_driver_registered = 0; |
| 7269 | } |
| 7270 | |
| 7271 | if (ibm->flags.init_called && ibm->exit) { |
| 7272 | ibm->exit(); |
| 7273 | ibm->flags.init_called = 0; |
| 7274 | } |
| 7275 | |
| 7276 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); |
| 7277 | } |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 7278 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7279 | static int __init ibm_init(struct ibm_init_struct *iibm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7280 | { |
| 7281 | int ret; |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7282 | struct ibm_struct *ibm = iibm->data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7283 | struct proc_dir_entry *entry; |
| 7284 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7285 | BUG_ON(ibm == NULL); |
| 7286 | |
| 7287 | INIT_LIST_HEAD(&ibm->all_drivers); |
| 7288 | |
Henrique de Moraes Holschuh | 9264117 | 2007-04-21 11:08:35 -0300 | [diff] [blame] | 7289 | if (ibm->flags.experimental && !experimental) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7290 | return 0; |
| 7291 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7292 | dbg_printk(TPACPI_DBG_INIT, |
| 7293 | "probing for %s\n", ibm->name); |
| 7294 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7295 | if (iibm->init) { |
| 7296 | ret = iibm->init(iibm); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7297 | if (ret > 0) |
| 7298 | return 0; /* probe failed */ |
| 7299 | if (ret) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7300 | return ret; |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7301 | |
Henrique de Moraes Holschuh | 9264117 | 2007-04-21 11:08:35 -0300 | [diff] [blame] | 7302 | ibm->flags.init_called = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7303 | } |
| 7304 | |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 7305 | if (ibm->acpi) { |
| 7306 | if (ibm->acpi->hid) { |
| 7307 | ret = register_tpacpi_subdriver(ibm); |
| 7308 | if (ret) |
| 7309 | goto err_out; |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7310 | } |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 7311 | |
| 7312 | if (ibm->acpi->notify) { |
| 7313 | ret = setup_acpi_notify(ibm); |
| 7314 | if (ret == -ENODEV) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7315 | printk(TPACPI_NOTICE "disabling subdriver %s\n", |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 7316 | ibm->name); |
| 7317 | ret = 0; |
| 7318 | goto err_out; |
| 7319 | } |
| 7320 | if (ret < 0) |
| 7321 | goto err_out; |
| 7322 | } |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7323 | } |
| 7324 | |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7325 | dbg_printk(TPACPI_DBG_INIT, |
| 7326 | "%s installed\n", ibm->name); |
| 7327 | |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7328 | if (ibm->read) { |
| 7329 | entry = create_proc_entry(ibm->name, |
| 7330 | S_IFREG | S_IRUGO | S_IWUSR, |
| 7331 | proc_dir); |
| 7332 | if (!entry) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7333 | printk(TPACPI_ERR "unable to create proc entry %s\n", |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7334 | ibm->name); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7335 | ret = -ENODEV; |
| 7336 | goto err_out; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7337 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7338 | entry->data = ibm; |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 7339 | entry->read_proc = &dispatch_procfs_read; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7340 | if (ibm->write) |
Henrique de Moraes Holschuh | 8d376cd | 2007-04-21 11:08:37 -0300 | [diff] [blame] | 7341 | entry->write_proc = &dispatch_procfs_write; |
Henrique de Moraes Holschuh | 9264117 | 2007-04-21 11:08:35 -0300 | [diff] [blame] | 7342 | ibm->flags.proc_created = 1; |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7343 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7344 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7345 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
| 7346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7347 | return 0; |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7348 | |
| 7349 | err_out: |
Henrique de Moraes Holschuh | fe08bc4 | 2007-04-21 11:08:32 -0300 | [diff] [blame] | 7350 | dbg_printk(TPACPI_DBG_INIT, |
| 7351 | "%s: at error exit path with result %d\n", |
| 7352 | ibm->name, ret); |
| 7353 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7354 | ibm_exit(ibm); |
| 7355 | return (ret < 0)? ret : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7356 | } |
| 7357 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7358 | /* Probing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7359 | |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7360 | /* returns 0 - probe ok, or < 0 - probe error. |
| 7361 | * Probe ok doesn't mean thinkpad found. |
| 7362 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ |
| 7363 | static int __must_check __init get_thinkpad_model_data( |
| 7364 | struct thinkpad_id_data *tp) |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 7365 | { |
Jeff Garzik | 1855256 | 2007-10-03 15:15:40 -0400 | [diff] [blame] | 7366 | const struct dmi_device *dev = NULL; |
Henrique de Moraes Holschuh | 49a13cd | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 7367 | char ec_fw_string[18]; |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7368 | char const *s; |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 7369 | |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7370 | if (!tp) |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7371 | return -EINVAL; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7372 | |
| 7373 | memset(tp, 0, sizeof(*tp)); |
| 7374 | |
| 7375 | if (dmi_name_in_vendors("IBM")) |
| 7376 | tp->vendor = PCI_VENDOR_ID_IBM; |
| 7377 | else if (dmi_name_in_vendors("LENOVO")) |
| 7378 | tp->vendor = PCI_VENDOR_ID_LENOVO; |
| 7379 | else |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7380 | return 0; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7381 | |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7382 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
| 7383 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); |
| 7384 | if (s && !tp->bios_version_str) |
| 7385 | return -ENOMEM; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7386 | if (!tp->bios_version_str) |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7387 | return 0; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7388 | tp->bios_model = tp->bios_version_str[0] |
| 7389 | | (tp->bios_version_str[1] << 8); |
| 7390 | |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 7391 | /* |
| 7392 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, |
| 7393 | * X32 or newer, all Z series; Some models must have an |
| 7394 | * up-to-date BIOS or they will not be detected. |
| 7395 | * |
| 7396 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs |
| 7397 | */ |
| 7398 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { |
Henrique de Moraes Holschuh | 49a13cd | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 7399 | if (sscanf(dev->name, |
| 7400 | "IBM ThinkPad Embedded Controller -[%17c", |
| 7401 | ec_fw_string) == 1) { |
| 7402 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; |
| 7403 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7404 | |
| 7405 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7406 | if (!tp->ec_version_str) |
| 7407 | return -ENOMEM; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7408 | tp->ec_model = ec_fw_string[0] |
| 7409 | | (ec_fw_string[1] << 8); |
| 7410 | break; |
Henrique de Moraes Holschuh | 49a13cd | 2006-11-24 11:47:13 -0200 | [diff] [blame] | 7411 | } |
Henrique de Moraes Holschuh | 60eb0b3 | 2006-11-24 11:47:08 -0200 | [diff] [blame] | 7412 | } |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7413 | |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7414 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
| 7415 | if (s && !strnicmp(s, "ThinkPad", 8)) { |
| 7416 | tp->model_str = kstrdup(s, GFP_KERNEL); |
| 7417 | if (!tp->model_str) |
| 7418 | return -ENOMEM; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7419 | } |
Henrique de Moraes Holschuh | 8c74adb | 2008-04-26 01:02:19 -0300 | [diff] [blame] | 7420 | |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7421 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
| 7422 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); |
| 7423 | if (s && !tp->nummodel_str) |
| 7424 | return -ENOMEM; |
| 7425 | |
| 7426 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7427 | } |
| 7428 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7429 | static int __init probe_for_thinkpad(void) |
| 7430 | { |
| 7431 | int is_thinkpad; |
| 7432 | |
| 7433 | if (acpi_disabled) |
| 7434 | return -ENODEV; |
| 7435 | |
| 7436 | /* |
| 7437 | * Non-ancient models have better DMI tagging, but very old models |
| 7438 | * don't. |
| 7439 | */ |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7440 | is_thinkpad = (thinkpad_id.model_str != NULL); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7441 | |
| 7442 | /* ec is required because many other handles are relative to it */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7443 | TPACPI_ACPIHANDLE_INIT(ec); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7444 | if (!ec_handle) { |
| 7445 | if (is_thinkpad) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7446 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7447 | "Not yet supported ThinkPad detected!\n"); |
| 7448 | return -ENODEV; |
| 7449 | } |
| 7450 | |
Henrique de Moraes Holschuh | 0dcef77 | 2007-04-21 11:08:34 -0300 | [diff] [blame] | 7451 | /* |
| 7452 | * Risks a regression on very old machines, but reduces potential |
| 7453 | * false positives a damn great deal |
| 7454 | */ |
| 7455 | if (!is_thinkpad) |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7456 | is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); |
Henrique de Moraes Holschuh | 0dcef77 | 2007-04-21 11:08:34 -0300 | [diff] [blame] | 7457 | |
| 7458 | if (!is_thinkpad && !force_load) |
| 7459 | return -ENODEV; |
| 7460 | |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7461 | return 0; |
| 7462 | } |
| 7463 | |
| 7464 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7465 | /* Module init, exit, parameters */ |
| 7466 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7467 | static struct ibm_init_struct ibms_init[] __initdata = { |
| 7468 | { |
| 7469 | .init = thinkpad_acpi_driver_init, |
| 7470 | .data = &thinkpad_acpi_driver_data, |
| 7471 | }, |
| 7472 | { |
| 7473 | .init = hotkey_init, |
| 7474 | .data = &hotkey_driver_data, |
| 7475 | }, |
| 7476 | { |
| 7477 | .init = bluetooth_init, |
| 7478 | .data = &bluetooth_driver_data, |
| 7479 | }, |
| 7480 | { |
| 7481 | .init = wan_init, |
| 7482 | .data = &wan_driver_data, |
| 7483 | }, |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 7484 | { |
| 7485 | .init = uwb_init, |
| 7486 | .data = &uwb_driver_data, |
| 7487 | }, |
Henrique de Moraes Holschuh | d7c1d17 | 2008-02-16 02:17:54 -0200 | [diff] [blame] | 7488 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7489 | { |
| 7490 | .init = video_init, |
| 7491 | .data = &video_driver_data, |
| 7492 | }, |
Henrique de Moraes Holschuh | d7c1d17 | 2008-02-16 02:17:54 -0200 | [diff] [blame] | 7493 | #endif |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7494 | { |
| 7495 | .init = light_init, |
| 7496 | .data = &light_driver_data, |
| 7497 | }, |
| 7498 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
| 7499 | { |
| 7500 | .init = dock_init, |
| 7501 | .data = &dock_driver_data[0], |
| 7502 | }, |
| 7503 | { |
Henrique de Moraes Holschuh | d94a7f1 | 2007-04-27 22:00:15 -0300 | [diff] [blame] | 7504 | .init = dock_init2, |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7505 | .data = &dock_driver_data[1], |
| 7506 | }, |
| 7507 | #endif |
| 7508 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
| 7509 | { |
| 7510 | .init = bay_init, |
| 7511 | .data = &bay_driver_data, |
| 7512 | }, |
| 7513 | #endif |
| 7514 | { |
| 7515 | .init = cmos_init, |
| 7516 | .data = &cmos_driver_data, |
| 7517 | }, |
| 7518 | { |
| 7519 | .init = led_init, |
| 7520 | .data = &led_driver_data, |
| 7521 | }, |
| 7522 | { |
| 7523 | .init = beep_init, |
| 7524 | .data = &beep_driver_data, |
| 7525 | }, |
| 7526 | { |
| 7527 | .init = thermal_init, |
| 7528 | .data = &thermal_driver_data, |
| 7529 | }, |
| 7530 | { |
| 7531 | .data = &ecdump_driver_data, |
| 7532 | }, |
| 7533 | { |
| 7534 | .init = brightness_init, |
| 7535 | .data = &brightness_driver_data, |
| 7536 | }, |
| 7537 | { |
| 7538 | .data = &volume_driver_data, |
| 7539 | }, |
| 7540 | { |
| 7541 | .init = fan_init, |
| 7542 | .data = &fan_driver_data, |
| 7543 | }, |
| 7544 | }; |
| 7545 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7546 | static int __init set_ibm_param(const char *val, struct kernel_param *kp) |
| 7547 | { |
| 7548 | unsigned int i; |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7549 | struct ibm_struct *ibm; |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7550 | |
Henrique de Moraes Holschuh | 59f91ff | 2007-11-18 09:18:29 -0200 | [diff] [blame] | 7551 | if (!kp || !kp->name || !val) |
| 7552 | return -EINVAL; |
| 7553 | |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7554 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
| 7555 | ibm = ibms_init[i].data; |
Henrique de Moraes Holschuh | 59f91ff | 2007-11-18 09:18:29 -0200 | [diff] [blame] | 7556 | WARN_ON(ibm == NULL); |
| 7557 | |
| 7558 | if (!ibm || !ibm->name) |
| 7559 | continue; |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7560 | |
| 7561 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { |
| 7562 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7563 | return -ENOSPC; |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7564 | strcpy(ibms_init[i].param, val); |
| 7565 | strcat(ibms_init[i].param, ","); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7566 | return 0; |
| 7567 | } |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7568 | } |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7569 | |
| 7570 | return -EINVAL; |
| 7571 | } |
| 7572 | |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7573 | module_param(experimental, int, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7574 | MODULE_PARM_DESC(experimental, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7575 | "Enables experimental features when non-zero"); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7576 | |
Henrique de Moraes Holschuh | 132ce09 | 2007-04-21 11:08:30 -0300 | [diff] [blame] | 7577 | module_param_named(debug, dbg_level, uint, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7578 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
Henrique de Moraes Holschuh | 132ce09 | 2007-04-21 11:08:30 -0300 | [diff] [blame] | 7579 | |
Henrique de Moraes Holschuh | 86cc944 | 2007-07-18 23:45:41 -0300 | [diff] [blame] | 7580 | module_param(force_load, bool, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7581 | MODULE_PARM_DESC(force_load, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7582 | "Attempts to load the driver even on a " |
| 7583 | "mis-identified ThinkPad when true"); |
Henrique de Moraes Holschuh | 0dcef77 | 2007-04-21 11:08:34 -0300 | [diff] [blame] | 7584 | |
Henrique de Moraes Holschuh | 86cc944 | 2007-07-18 23:45:41 -0300 | [diff] [blame] | 7585 | module_param_named(fan_control, fan_control_allowed, bool, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7586 | MODULE_PARM_DESC(fan_control, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7587 | "Enables setting fan parameters features when true"); |
Henrique de Moraes Holschuh | ecf2a80 | 2007-04-27 22:00:09 -0300 | [diff] [blame] | 7588 | |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 7589 | module_param_named(brightness_mode, brightness_mode, uint, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7590 | MODULE_PARM_DESC(brightness_mode, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7591 | "Selects brightness control strategy: " |
Henrique de Moraes Holschuh | 0e50183 | 2009-04-04 04:25:53 +0000 | [diff] [blame] | 7592 | "0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
Henrique de Moraes Holschuh | 24d3b77 | 2007-07-18 23:45:43 -0300 | [diff] [blame] | 7593 | |
Henrique de Moraes Holschuh | 87cc537 | 2007-10-30 18:02:07 -0200 | [diff] [blame] | 7594 | module_param(brightness_enable, uint, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7595 | MODULE_PARM_DESC(brightness_enable, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7596 | "Enables backlight control when 1, disables when 0"); |
Henrique de Moraes Holschuh | 87cc537 | 2007-10-30 18:02:07 -0200 | [diff] [blame] | 7597 | |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 7598 | module_param(hotkey_report_mode, uint, 0); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7599 | MODULE_PARM_DESC(hotkey_report_mode, |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7600 | "used for backwards compatibility with userspace, " |
| 7601 | "see documentation"); |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 7602 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7603 | #define TPACPI_PARAM(feature) \ |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7604 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
Henrique de Moraes Holschuh | cbb1484 | 2008-02-16 02:17:50 -0200 | [diff] [blame] | 7605 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7606 | "at module load, see documentation") |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7607 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7608 | TPACPI_PARAM(hotkey); |
| 7609 | TPACPI_PARAM(bluetooth); |
| 7610 | TPACPI_PARAM(video); |
| 7611 | TPACPI_PARAM(light); |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 7612 | #ifdef CONFIG_THINKPAD_ACPI_DOCK |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7613 | TPACPI_PARAM(dock); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7614 | #endif |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 7615 | #ifdef CONFIG_THINKPAD_ACPI_BAY |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7616 | TPACPI_PARAM(bay); |
Henrique de Moraes Holschuh | 8599824 | 2007-03-29 01:58:41 -0300 | [diff] [blame] | 7617 | #endif /* CONFIG_THINKPAD_ACPI_BAY */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7618 | TPACPI_PARAM(cmos); |
| 7619 | TPACPI_PARAM(led); |
| 7620 | TPACPI_PARAM(beep); |
| 7621 | TPACPI_PARAM(ecdump); |
| 7622 | TPACPI_PARAM(brightness); |
| 7623 | TPACPI_PARAM(volume); |
| 7624 | TPACPI_PARAM(fan); |
Henrique de Moraes Holschuh | 56b6aeb | 2007-03-23 17:33:57 -0300 | [diff] [blame] | 7625 | |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 7626 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
| 7627 | module_param(dbg_wlswemul, uint, 0); |
| 7628 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
| 7629 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); |
| 7630 | MODULE_PARM_DESC(wlsw_state, |
| 7631 | "Initial state of the emulated WLSW switch"); |
| 7632 | |
| 7633 | module_param(dbg_bluetoothemul, uint, 0); |
| 7634 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
| 7635 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); |
| 7636 | MODULE_PARM_DESC(bluetooth_state, |
| 7637 | "Initial state of the emulated bluetooth switch"); |
| 7638 | |
| 7639 | module_param(dbg_wwanemul, uint, 0); |
| 7640 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
| 7641 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); |
| 7642 | MODULE_PARM_DESC(wwan_state, |
| 7643 | "Initial state of the emulated WWAN switch"); |
Henrique de Moraes Holschuh | 0045c0a | 2009-01-11 03:01:03 -0200 | [diff] [blame] | 7644 | |
| 7645 | module_param(dbg_uwbemul, uint, 0); |
| 7646 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
| 7647 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); |
| 7648 | MODULE_PARM_DESC(uwb_state, |
| 7649 | "Initial state of the emulated UWB switch"); |
Henrique de Moraes Holschuh | a73f309 | 2009-01-11 03:01:00 -0200 | [diff] [blame] | 7650 | #endif |
| 7651 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 7652 | static void thinkpad_acpi_module_exit(void) |
| 7653 | { |
| 7654 | struct ibm_struct *ibm, *itmp; |
| 7655 | |
| 7656 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; |
| 7657 | |
| 7658 | list_for_each_entry_safe_reverse(ibm, itmp, |
| 7659 | &tpacpi_all_drivers, |
| 7660 | all_drivers) { |
| 7661 | ibm_exit(ibm); |
| 7662 | } |
| 7663 | |
| 7664 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); |
| 7665 | |
| 7666 | if (tpacpi_inputdev) { |
| 7667 | if (tp_features.input_device_registered) |
| 7668 | input_unregister_device(tpacpi_inputdev); |
| 7669 | else |
| 7670 | input_free_device(tpacpi_inputdev); |
| 7671 | } |
| 7672 | |
| 7673 | if (tpacpi_hwmon) |
| 7674 | hwmon_device_unregister(tpacpi_hwmon); |
| 7675 | |
| 7676 | if (tp_features.sensors_pdev_attrs_registered) |
| 7677 | device_remove_file(&tpacpi_sensors_pdev->dev, |
| 7678 | &dev_attr_thinkpad_acpi_pdev_name); |
| 7679 | if (tpacpi_sensors_pdev) |
| 7680 | platform_device_unregister(tpacpi_sensors_pdev); |
| 7681 | if (tpacpi_pdev) |
| 7682 | platform_device_unregister(tpacpi_pdev); |
| 7683 | |
| 7684 | if (tp_features.sensors_pdrv_attrs_registered) |
| 7685 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); |
| 7686 | if (tp_features.platform_drv_attrs_registered) |
| 7687 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); |
| 7688 | |
| 7689 | if (tp_features.sensors_pdrv_registered) |
| 7690 | platform_driver_unregister(&tpacpi_hwmon_pdriver); |
| 7691 | |
| 7692 | if (tp_features.platform_drv_registered) |
| 7693 | platform_driver_unregister(&tpacpi_pdriver); |
| 7694 | |
| 7695 | if (proc_dir) |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7696 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 7697 | |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 7698 | if (tpacpi_wq) |
| 7699 | destroy_workqueue(tpacpi_wq); |
| 7700 | |
Henrique de Moraes Holschuh | b21a15f | 2008-01-08 13:02:45 -0200 | [diff] [blame] | 7701 | kfree(thinkpad_id.bios_version_str); |
| 7702 | kfree(thinkpad_id.ec_version_str); |
| 7703 | kfree(thinkpad_id.model_str); |
| 7704 | } |
| 7705 | |
Henrique de Moraes Holschuh | f74a27d | 2008-01-08 13:02:44 -0200 | [diff] [blame] | 7706 | |
Henrique de Moraes Holschuh | 1def711 | 2007-04-21 11:08:27 -0300 | [diff] [blame] | 7707 | static int __init thinkpad_acpi_module_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7708 | { |
| 7709 | int ret, i; |
| 7710 | |
Henrique de Moraes Holschuh | 8fef502 | 2007-09-23 11:39:02 -0300 | [diff] [blame] | 7711 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
| 7712 | |
Henrique de Moraes Holschuh | ff80f13 | 2007-09-04 11:13:15 -0300 | [diff] [blame] | 7713 | /* Parameter checking */ |
| 7714 | if (hotkey_report_mode > 2) |
| 7715 | return -EINVAL; |
| 7716 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7717 | /* Driver-level probe */ |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7718 | |
Henrique de Moraes Holschuh | bf20e74 | 2008-07-21 09:15:51 -0300 | [diff] [blame] | 7719 | ret = get_thinkpad_model_data(&thinkpad_id); |
| 7720 | if (ret) { |
| 7721 | printk(TPACPI_ERR |
| 7722 | "unable to get DMI data: %d\n", ret); |
| 7723 | thinkpad_acpi_module_exit(); |
| 7724 | return ret; |
| 7725 | } |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7726 | ret = probe_for_thinkpad(); |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7727 | if (ret) { |
| 7728 | thinkpad_acpi_module_exit(); |
Henrique de Moraes Holschuh | 5fba344 | 2007-04-21 11:08:31 -0300 | [diff] [blame] | 7729 | return ret; |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7730 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7731 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7732 | /* Driver initialization */ |
Henrique de Moraes Holschuh | d5a2f2f | 2007-07-18 23:45:42 -0300 | [diff] [blame] | 7733 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7734 | TPACPI_ACPIHANDLE_INIT(ecrd); |
| 7735 | TPACPI_ACPIHANDLE_INIT(ecwr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7736 | |
Henrique de Moraes Holschuh | e0e3c06 | 2008-04-26 01:02:28 -0300 | [diff] [blame] | 7737 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
| 7738 | if (!tpacpi_wq) { |
| 7739 | thinkpad_acpi_module_exit(); |
| 7740 | return -ENOMEM; |
| 7741 | } |
| 7742 | |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7743 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7744 | if (!proc_dir) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7745 | printk(TPACPI_ERR |
| 7746 | "unable to create proc dir " TPACPI_PROC_DIR); |
Henrique de Moraes Holschuh | 1def711 | 2007-04-21 11:08:27 -0300 | [diff] [blame] | 7747 | thinkpad_acpi_module_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7748 | return -ENODEV; |
| 7749 | } |
Borislav Deianov | 78f81cc | 2005-08-17 00:00:00 -0400 | [diff] [blame] | 7750 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7751 | ret = platform_driver_register(&tpacpi_pdriver); |
| 7752 | if (ret) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7753 | printk(TPACPI_ERR |
| 7754 | "unable to register main platform driver\n"); |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7755 | thinkpad_acpi_module_exit(); |
| 7756 | return ret; |
| 7757 | } |
Henrique de Moraes Holschuh | ac36393 | 2007-07-27 17:04:40 -0300 | [diff] [blame] | 7758 | tp_features.platform_drv_registered = 1; |
| 7759 | |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7760 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
| 7761 | if (ret) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7762 | printk(TPACPI_ERR |
| 7763 | "unable to register hwmon platform driver\n"); |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7764 | thinkpad_acpi_module_exit(); |
| 7765 | return ret; |
| 7766 | } |
| 7767 | tp_features.sensors_pdrv_registered = 1; |
| 7768 | |
Henrique de Moraes Holschuh | 176750d | 2007-04-24 11:48:13 -0300 | [diff] [blame] | 7769 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
Henrique de Moraes Holschuh | 2369cc9 | 2007-09-23 11:39:07 -0300 | [diff] [blame] | 7770 | if (!ret) { |
| 7771 | tp_features.platform_drv_attrs_registered = 1; |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7772 | ret = tpacpi_create_driver_attributes( |
| 7773 | &tpacpi_hwmon_pdriver.driver); |
Henrique de Moraes Holschuh | 2369cc9 | 2007-09-23 11:39:07 -0300 | [diff] [blame] | 7774 | } |
Henrique de Moraes Holschuh | 176750d | 2007-04-24 11:48:13 -0300 | [diff] [blame] | 7775 | if (ret) { |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7776 | printk(TPACPI_ERR |
| 7777 | "unable to create sysfs driver attributes\n"); |
Henrique de Moraes Holschuh | 176750d | 2007-04-24 11:48:13 -0300 | [diff] [blame] | 7778 | thinkpad_acpi_module_exit(); |
| 7779 | return ret; |
| 7780 | } |
Henrique de Moraes Holschuh | 2369cc9 | 2007-09-23 11:39:07 -0300 | [diff] [blame] | 7781 | tp_features.sensors_pdrv_attrs_registered = 1; |
Henrique de Moraes Holschuh | 176750d | 2007-04-24 11:48:13 -0300 | [diff] [blame] | 7782 | |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7783 | |
| 7784 | /* Device initialization */ |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7785 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7786 | NULL, 0); |
| 7787 | if (IS_ERR(tpacpi_pdev)) { |
| 7788 | ret = PTR_ERR(tpacpi_pdev); |
| 7789 | tpacpi_pdev = NULL; |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7790 | printk(TPACPI_ERR "unable to register platform device\n"); |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7791 | thinkpad_acpi_module_exit(); |
| 7792 | return ret; |
| 7793 | } |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7794 | tpacpi_sensors_pdev = platform_device_register_simple( |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7795 | TPACPI_HWMON_DRVR_NAME, |
| 7796 | -1, NULL, 0); |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7797 | if (IS_ERR(tpacpi_sensors_pdev)) { |
| 7798 | ret = PTR_ERR(tpacpi_sensors_pdev); |
| 7799 | tpacpi_sensors_pdev = NULL; |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7800 | printk(TPACPI_ERR |
| 7801 | "unable to register hwmon platform device\n"); |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7802 | thinkpad_acpi_module_exit(); |
| 7803 | return ret; |
| 7804 | } |
| 7805 | ret = device_create_file(&tpacpi_sensors_pdev->dev, |
| 7806 | &dev_attr_thinkpad_acpi_pdev_name); |
| 7807 | if (ret) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7808 | printk(TPACPI_ERR |
Henrique de Moraes Holschuh | 35ff8b9 | 2008-01-08 13:02:49 -0200 | [diff] [blame] | 7809 | "unable to create sysfs hwmon device attributes\n"); |
Henrique de Moraes Holschuh | 7fd4002 | 2007-09-25 06:38:03 -0300 | [diff] [blame] | 7810 | thinkpad_acpi_module_exit(); |
| 7811 | return ret; |
| 7812 | } |
| 7813 | tp_features.sensors_pdev_attrs_registered = 1; |
| 7814 | tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7815 | if (IS_ERR(tpacpi_hwmon)) { |
| 7816 | ret = PTR_ERR(tpacpi_hwmon); |
| 7817 | tpacpi_hwmon = NULL; |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7818 | printk(TPACPI_ERR "unable to register hwmon device\n"); |
Henrique de Moraes Holschuh | 54ae150 | 2007-04-24 11:48:12 -0300 | [diff] [blame] | 7819 | thinkpad_acpi_module_exit(); |
| 7820 | return ret; |
| 7821 | } |
Henrique de Moraes Holschuh | 8523ed6 | 2007-09-23 11:39:01 -0300 | [diff] [blame] | 7822 | mutex_init(&tpacpi_inputdev_send_mutex); |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7823 | tpacpi_inputdev = input_allocate_device(); |
| 7824 | if (!tpacpi_inputdev) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7825 | printk(TPACPI_ERR "unable to allocate input device\n"); |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7826 | thinkpad_acpi_module_exit(); |
| 7827 | return -ENOMEM; |
| 7828 | } else { |
| 7829 | /* Prepare input device, but don't register */ |
| 7830 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7831 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7832 | tpacpi_inputdev->id.bustype = BUS_HOST; |
Henrique de Moraes Holschuh | edf0e0e | 2007-07-18 23:45:44 -0300 | [diff] [blame] | 7833 | tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? |
| 7834 | thinkpad_id.vendor : |
| 7835 | PCI_VENDOR_ID_IBM; |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7836 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
| 7837 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; |
| 7838 | } |
Henrique de Moraes Holschuh | a5763f2 | 2007-04-21 11:08:33 -0300 | [diff] [blame] | 7839 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
| 7840 | ret = ibm_init(&ibms_init[i]); |
| 7841 | if (ret >= 0 && *ibms_init[i].param) |
| 7842 | ret = ibms_init[i].data->write(ibms_init[i].param); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7843 | if (ret < 0) { |
Henrique de Moraes Holschuh | 1def711 | 2007-04-21 11:08:27 -0300 | [diff] [blame] | 7844 | thinkpad_acpi_module_exit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7845 | return ret; |
| 7846 | } |
| 7847 | } |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7848 | ret = input_register_device(tpacpi_inputdev); |
| 7849 | if (ret < 0) { |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7850 | printk(TPACPI_ERR "unable to register input device\n"); |
Henrique de Moraes Holschuh | 7f5d1cd | 2007-07-18 23:45:34 -0300 | [diff] [blame] | 7851 | thinkpad_acpi_module_exit(); |
| 7852 | return ret; |
| 7853 | } else { |
| 7854 | tp_features.input_device_registered = 1; |
| 7855 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7856 | |
Henrique de Moraes Holschuh | 8fef502 | 2007-09-23 11:39:02 -0300 | [diff] [blame] | 7857 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7858 | return 0; |
| 7859 | } |
| 7860 | |
Henrique de Moraes Holschuh | 95e57ab | 2008-04-26 01:02:22 -0300 | [diff] [blame] | 7861 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
| 7862 | |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7863 | /* |
Henrique de Moraes Holschuh | 922fe09 | 2009-04-14 02:44:13 +0000 | [diff] [blame] | 7864 | * This will autoload the driver in almost every ThinkPad |
| 7865 | * in widespread use. |
| 7866 | * |
| 7867 | * Only _VERY_ old models, like the 240, 240x and 570 lack |
| 7868 | * the HKEY event interface. |
| 7869 | */ |
| 7870 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); |
| 7871 | |
| 7872 | /* |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7873 | * DMI matching for module autoloading |
| 7874 | * |
| 7875 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs |
| 7876 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads |
| 7877 | * |
| 7878 | * Only models listed in thinkwiki will be supported, so add yours |
| 7879 | * if it is not there yet. |
| 7880 | */ |
| 7881 | #define IBM_BIOS_MODULE_ALIAS(__type) \ |
Mathieu Chouquet-Stringer | b36a50f | 2009-03-14 16:35:26 +0100 | [diff] [blame] | 7882 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7883 | |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7884 | /* Ancient thinkpad BIOSes have to be identified by |
| 7885 | * BIOS type or model number, and there are far less |
| 7886 | * BIOS types than model numbers... */ |
Henrique de Moraes Holschuh | 922fe09 | 2009-04-14 02:44:13 +0000 | [diff] [blame] | 7887 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7888 | |
Henrique de Moraes Holschuh | f68f53a | 2009-04-14 02:44:12 +0000 | [diff] [blame] | 7889 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
| 7890 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); |
Henrique de Moraes Holschuh | e0c7dfe | 2008-01-08 13:02:48 -0200 | [diff] [blame] | 7891 | MODULE_DESCRIPTION(TPACPI_DESC); |
| 7892 | MODULE_VERSION(TPACPI_VERSION); |
Henrique de Moraes Holschuh | f68080f | 2008-01-08 13:02:47 -0200 | [diff] [blame] | 7893 | MODULE_LICENSE("GPL"); |
| 7894 | |
Henrique de Moraes Holschuh | 1def711 | 2007-04-21 11:08:27 -0300 | [diff] [blame] | 7895 | module_init(thinkpad_acpi_module_init); |
| 7896 | module_exit(thinkpad_acpi_module_exit); |