Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * video.c - ACPI Video Driver ($Revision:$) |
| 3 | * |
| 4 | * Copyright (C) 2004 Luming Yu <luming.yu@intel.com> |
| 5 | * Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org> |
Thomas Tuttle | f471518 | 2006-12-19 12:56:14 -0800 | [diff] [blame] | 6 | * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or (at |
| 13 | * your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, but |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 23 | * |
| 24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 25 | */ |
| 26 | |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/types.h> |
| 31 | #include <linux/list.h> |
| 32 | #include <linux/proc_fs.h> |
| 33 | #include <linux/seq_file.h> |
| 34 | |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 35 | #include <linux/backlight.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <asm/uaccess.h> |
| 37 | |
| 38 | #include <acpi/acpi_bus.h> |
| 39 | #include <acpi/acpi_drivers.h> |
| 40 | |
| 41 | #define ACPI_VIDEO_COMPONENT 0x08000000 |
| 42 | #define ACPI_VIDEO_CLASS "video" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define ACPI_VIDEO_BUS_NAME "Video Bus" |
| 44 | #define ACPI_VIDEO_DEVICE_NAME "Video Device" |
| 45 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 |
| 46 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 |
| 47 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 |
| 48 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 |
| 49 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 |
| 50 | |
Thomas Tuttle | f471518 | 2006-12-19 12:56:14 -0800 | [diff] [blame] | 51 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 |
| 52 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 |
| 53 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 |
| 54 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 |
| 55 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #define ACPI_VIDEO_HEAD_INVALID (~0u - 1) |
| 58 | #define ACPI_VIDEO_HEAD_END (~0u) |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 59 | #define MAX_NAME_LEN 20 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 61 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
| 62 | #define ACPI_VIDEO_DISPLAY_TV 2 |
| 63 | #define ACPI_VIDEO_DISPLAY_DVI 3 |
| 64 | #define ACPI_VIDEO_DISPLAY_LCD 4 |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | #define _COMPONENT ACPI_VIDEO_COMPONENT |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 67 | ACPI_MODULE_NAME("video"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 69 | MODULE_AUTHOR("Bruno Ducrot"); |
Len Brown | 7cda93e | 2007-02-12 23:50:02 -0500 | [diff] [blame] | 70 | MODULE_DESCRIPTION("ACPI Video Driver"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | MODULE_LICENSE("GPL"); |
| 72 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 73 | static int acpi_video_bus_add(struct acpi_device *device); |
| 74 | static int acpi_video_bus_remove(struct acpi_device *device, int type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | static struct acpi_driver acpi_video_bus = { |
Len Brown | c2b6705b | 2007-02-12 23:33:40 -0500 | [diff] [blame] | 77 | .name = "video", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | .class = ACPI_VIDEO_CLASS, |
Zhang Rui | ae84333 | 2006-12-07 20:57:10 +0800 | [diff] [blame] | 79 | .ids = ACPI_VIDEO_HID, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | .ops = { |
| 81 | .add = acpi_video_bus_add, |
| 82 | .remove = acpi_video_bus_remove, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 83 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | }; |
| 85 | |
| 86 | struct acpi_video_bus_flags { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 87 | u8 multihead:1; /* can switch video heads */ |
| 88 | u8 rom:1; /* can retrieve a video rom */ |
| 89 | u8 post:1; /* can configure the head to */ |
| 90 | u8 reserved:5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | }; |
| 92 | |
| 93 | struct acpi_video_bus_cap { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 94 | u8 _DOS:1; /*Enable/Disable output switching */ |
| 95 | u8 _DOD:1; /*Enumerate all devices attached to display adapter */ |
| 96 | u8 _ROM:1; /*Get ROM Data */ |
| 97 | u8 _GPD:1; /*Get POST Device */ |
| 98 | u8 _SPD:1; /*Set POST Device */ |
| 99 | u8 _VPO:1; /*Video POST Options */ |
| 100 | u8 reserved:2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | }; |
| 102 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 103 | struct acpi_video_device_attrib { |
| 104 | u32 display_index:4; /* A zero-based instance of the Display */ |
| 105 | u32 display_port_attachment:4; /*This field differenates displays type */ |
| 106 | u32 display_type:4; /*Describe the specific type in use */ |
| 107 | u32 vendor_specific:4; /*Chipset Vendor Specifi */ |
| 108 | u32 bios_can_detect:1; /*BIOS can detect the device */ |
| 109 | u32 depend_on_vga:1; /*Non-VGA output device whose power is related to |
| 110 | the VGA device. */ |
| 111 | u32 pipe_id:3; /*For VGA multiple-head devices. */ |
| 112 | u32 reserved:10; /*Must be 0 */ |
| 113 | u32 device_id_scheme:1; /*Device ID Scheme */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | }; |
| 115 | |
| 116 | struct acpi_video_enumerated_device { |
| 117 | union { |
| 118 | u32 int_val; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 119 | struct acpi_video_device_attrib attrib; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | } value; |
| 121 | struct acpi_video_device *bind_info; |
| 122 | }; |
| 123 | |
| 124 | struct acpi_video_bus { |
Patrick Mochel | e6afa0d | 2006-05-19 16:54:40 -0400 | [diff] [blame] | 125 | struct acpi_device *device; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 126 | u8 dos_setting; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | struct acpi_video_enumerated_device *attached_array; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 128 | u8 attached_count; |
| 129 | struct acpi_video_bus_cap cap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | struct acpi_video_bus_flags flags; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 131 | struct semaphore sem; |
| 132 | struct list_head video_device_list; |
| 133 | struct proc_dir_entry *dir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | }; |
| 135 | |
| 136 | struct acpi_video_device_flags { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 137 | u8 crt:1; |
| 138 | u8 lcd:1; |
| 139 | u8 tvout:1; |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 140 | u8 dvi:1; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 141 | u8 bios:1; |
| 142 | u8 unknown:1; |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 143 | u8 reserved:2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | }; |
| 145 | |
| 146 | struct acpi_video_device_cap { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 147 | u8 _ADR:1; /*Return the unique ID */ |
| 148 | u8 _BCL:1; /*Query list of brightness control levels supported */ |
| 149 | u8 _BCM:1; /*Set the brightness level */ |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 150 | u8 _BQC:1; /* Get current brightness level */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 151 | u8 _DDC:1; /*Return the EDID for this device */ |
| 152 | u8 _DCS:1; /*Return status of output device */ |
| 153 | u8 _DGS:1; /*Query graphics state */ |
| 154 | u8 _DSS:1; /*Device state set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | }; |
| 156 | |
| 157 | struct acpi_video_device_brightness { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 158 | int curr; |
| 159 | int count; |
| 160 | int *levels; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | }; |
| 162 | |
| 163 | struct acpi_video_device { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 164 | unsigned long device_id; |
| 165 | struct acpi_video_device_flags flags; |
| 166 | struct acpi_video_device_cap cap; |
| 167 | struct list_head entry; |
| 168 | struct acpi_video_bus *video; |
| 169 | struct acpi_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | struct acpi_video_device_brightness *brightness; |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 171 | struct backlight_device *backlight; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | }; |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | /* bus */ |
| 175 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); |
| 176 | static struct file_operations acpi_video_bus_info_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | .open = acpi_video_bus_info_open_fs, |
| 178 | .read = seq_read, |
| 179 | .llseek = seq_lseek, |
| 180 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | }; |
| 182 | |
| 183 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); |
| 184 | static struct file_operations acpi_video_bus_ROM_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 185 | .open = acpi_video_bus_ROM_open_fs, |
| 186 | .read = seq_read, |
| 187 | .llseek = seq_lseek, |
| 188 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | }; |
| 190 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 191 | static int acpi_video_bus_POST_info_open_fs(struct inode *inode, |
| 192 | struct file *file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | static struct file_operations acpi_video_bus_POST_info_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 194 | .open = acpi_video_bus_POST_info_open_fs, |
| 195 | .read = seq_read, |
| 196 | .llseek = seq_lseek, |
| 197 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | }; |
| 199 | |
| 200 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); |
| 201 | static struct file_operations acpi_video_bus_POST_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 202 | .open = acpi_video_bus_POST_open_fs, |
| 203 | .read = seq_read, |
| 204 | .llseek = seq_lseek, |
| 205 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | }; |
| 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); |
| 209 | static struct file_operations acpi_video_bus_DOS_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 210 | .open = acpi_video_bus_DOS_open_fs, |
| 211 | .read = seq_read, |
| 212 | .llseek = seq_lseek, |
| 213 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | }; |
| 215 | |
| 216 | /* device */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 217 | static int acpi_video_device_info_open_fs(struct inode *inode, |
| 218 | struct file *file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | static struct file_operations acpi_video_device_info_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 220 | .open = acpi_video_device_info_open_fs, |
| 221 | .read = seq_read, |
| 222 | .llseek = seq_lseek, |
| 223 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | }; |
| 225 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 226 | static int acpi_video_device_state_open_fs(struct inode *inode, |
| 227 | struct file *file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | static struct file_operations acpi_video_device_state_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 229 | .open = acpi_video_device_state_open_fs, |
| 230 | .read = seq_read, |
| 231 | .llseek = seq_lseek, |
| 232 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | }; |
| 234 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 235 | static int acpi_video_device_brightness_open_fs(struct inode *inode, |
| 236 | struct file *file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | static struct file_operations acpi_video_device_brightness_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 238 | .open = acpi_video_device_brightness_open_fs, |
| 239 | .read = seq_read, |
| 240 | .llseek = seq_lseek, |
| 241 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | }; |
| 243 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 244 | static int acpi_video_device_EDID_open_fs(struct inode *inode, |
| 245 | struct file *file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | static struct file_operations acpi_video_device_EDID_fops = { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 247 | .open = acpi_video_device_EDID_open_fs, |
| 248 | .read = seq_read, |
| 249 | .llseek = seq_lseek, |
| 250 | .release = single_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | }; |
| 252 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 253 | static char device_decode[][30] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | "motherboard VGA device", |
| 255 | "PCI VGA device", |
| 256 | "AGP VGA device", |
| 257 | "UNKNOWN", |
| 258 | }; |
| 259 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 260 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data); |
| 261 | static void acpi_video_device_rebind(struct acpi_video_bus *video); |
| 262 | static void acpi_video_device_bind(struct acpi_video_bus *video, |
| 263 | struct acpi_video_device *device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | static int acpi_video_device_enumerate(struct acpi_video_bus *video); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 265 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event); |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 266 | static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, |
| 267 | int level); |
| 268 | static int acpi_video_device_lcd_get_level_current( |
| 269 | struct acpi_video_device *device, |
| 270 | unsigned long *level); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 271 | static int acpi_video_get_next_level(struct acpi_video_device *device, |
| 272 | u32 level_current, u32 event); |
| 273 | static void acpi_video_switch_brightness(struct acpi_video_device *device, |
| 274 | int event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 276 | /*backlight device sysfs support*/ |
| 277 | static int acpi_video_get_brightness(struct backlight_device *bd) |
| 278 | { |
| 279 | unsigned long cur_level; |
| 280 | struct acpi_video_device *vd = |
| 281 | (struct acpi_video_device *)class_get_devdata(&bd->class_dev); |
| 282 | acpi_video_device_lcd_get_level_current(vd, &cur_level); |
| 283 | return (int) cur_level; |
| 284 | } |
| 285 | |
| 286 | static int acpi_video_set_brightness(struct backlight_device *bd) |
| 287 | { |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame^] | 288 | int request_level = bd->props.brightness; |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 289 | struct acpi_video_device *vd = |
| 290 | (struct acpi_video_device *)class_get_devdata(&bd->class_dev); |
| 291 | acpi_video_device_lcd_set_level(vd, request_level); |
| 292 | return 0; |
| 293 | } |
| 294 | |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame^] | 295 | static struct backlight_ops acpi_backlight_ops = { |
| 296 | .get_brightness = acpi_video_get_brightness, |
| 297 | .update_status = acpi_video_set_brightness, |
| 298 | }; |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | /* -------------------------------------------------------------------------- |
| 301 | Video Management |
| 302 | -------------------------------------------------------------------------- */ |
| 303 | |
| 304 | /* device */ |
| 305 | |
| 306 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 307 | acpi_video_device_query(struct acpi_video_device *device, unsigned long *state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 309 | int status; |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 310 | |
| 311 | status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 313 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 317 | acpi_video_device_get_state(struct acpi_video_device *device, |
| 318 | unsigned long *state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 320 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 322 | status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 324 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 328 | acpi_video_device_set_state(struct acpi_video_device *device, int state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 330 | int status; |
| 331 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
| 332 | struct acpi_object_list args = { 1, &arg0 }; |
Luming Yu | 824b558 | 2005-08-21 19:17:00 -0400 | [diff] [blame] | 333 | unsigned long ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
| 336 | arg0.integer.value = state; |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 337 | status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 339 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | } |
| 341 | |
| 342 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 343 | acpi_video_device_lcd_query_levels(struct acpi_video_device *device, |
| 344 | union acpi_object **levels) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 346 | int status; |
| 347 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 348 | union acpi_object *obj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
| 351 | *levels = NULL; |
| 352 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 353 | status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | if (!ACPI_SUCCESS(status)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 355 | return status; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 356 | obj = (union acpi_object *)buffer.pointer; |
Adrian Bunk | 6665bda | 2006-03-11 10:12:00 -0500 | [diff] [blame] | 357 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
Len Brown | 6468463 | 2006-06-26 23:41:38 -0400 | [diff] [blame] | 358 | printk(KERN_ERR PREFIX "Invalid _BCL data\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | status = -EFAULT; |
| 360 | goto err; |
| 361 | } |
| 362 | |
| 363 | *levels = obj; |
| 364 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 365 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 367 | err: |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 368 | kfree(buffer.pointer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 370 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 374 | acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 376 | int status; |
| 377 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
| 378 | struct acpi_object_list args = { 1, &arg0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
| 381 | arg0.integer.value = level; |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 382 | status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
| 384 | printk(KERN_DEBUG "set_level status: %x\n", status); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 385 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | } |
| 387 | |
| 388 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 389 | acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, |
| 390 | unsigned long *level) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 392 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 394 | status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, level); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 396 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 400 | acpi_video_device_EDID(struct acpi_video_device *device, |
| 401 | union acpi_object **edid, ssize_t length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 403 | int status; |
| 404 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 405 | union acpi_object *obj; |
| 406 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
| 407 | struct acpi_object_list args = { 1, &arg0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
| 410 | *edid = NULL; |
| 411 | |
| 412 | if (!device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 413 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | if (length == 128) |
| 415 | arg0.integer.value = 1; |
| 416 | else if (length == 256) |
| 417 | arg0.integer.value = 2; |
| 418 | else |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 419 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 421 | status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | if (ACPI_FAILURE(status)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 423 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 425 | obj = buffer.pointer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | |
| 427 | if (obj && obj->type == ACPI_TYPE_BUFFER) |
| 428 | *edid = obj; |
| 429 | else { |
Len Brown | 6468463 | 2006-06-26 23:41:38 -0400 | [diff] [blame] | 430 | printk(KERN_ERR PREFIX "Invalid _DDC data\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | status = -EFAULT; |
| 432 | kfree(obj); |
| 433 | } |
| 434 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 435 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | } |
| 437 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | /* bus */ |
| 439 | |
| 440 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 441 | acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 443 | int status; |
| 444 | unsigned long tmp; |
| 445 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
| 446 | struct acpi_object_list args = { 1, &arg0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | |
| 449 | arg0.integer.value = option; |
| 450 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 451 | status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | if (ACPI_SUCCESS(status)) |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 453 | status = tmp ? (-EINVAL) : (AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 455 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 459 | acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | { |
| 461 | int status; |
| 462 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 463 | status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 465 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | } |
| 467 | |
| 468 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 469 | acpi_video_bus_POST_options(struct acpi_video_bus *video, |
| 470 | unsigned long *options) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 472 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 474 | status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | *options &= 3; |
| 476 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 477 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | /* |
| 481 | * Arg: |
| 482 | * video : video bus device pointer |
| 483 | * bios_flag : |
| 484 | * 0. The system BIOS should NOT automatically switch(toggle) |
| 485 | * the active display output. |
| 486 | * 1. The system BIOS should automatically switch (toggle) the |
| 487 | * active display output. No swich event. |
| 488 | * 2. The _DGS value should be locked. |
| 489 | * 3. The system BIOS should not automatically switch (toggle) the |
| 490 | * active display output, but instead generate the display switch |
| 491 | * event notify code. |
| 492 | * lcd_flag : |
| 493 | * 0. The system BIOS should automatically control the brightness level |
| 494 | * of the LCD, when the power changes from AC to DC |
| 495 | * 1. The system BIOS should NOT automatically control the brightness |
| 496 | * level of the LCD, when the power changes from AC to DC. |
| 497 | * Return Value: |
| 498 | * -1 wrong arg. |
| 499 | */ |
| 500 | |
| 501 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 502 | acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 504 | acpi_integer status = 0; |
| 505 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
| 506 | struct acpi_object_list args = { 1, &arg0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 509 | if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | status = -1; |
| 511 | goto Failed; |
| 512 | } |
| 513 | arg0.integer.value = (lcd_flag << 2) | bios_flag; |
| 514 | video->dos_setting = arg0.integer.value; |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 515 | acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 517 | Failed: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 518 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | } |
| 520 | |
| 521 | /* |
| 522 | * Arg: |
| 523 | * device : video output device (LCD, CRT, ..) |
| 524 | * |
| 525 | * Return Value: |
| 526 | * None |
| 527 | * |
| 528 | * Find out all required AML method defined under the output |
| 529 | * device. |
| 530 | */ |
| 531 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 532 | static void acpi_video_device_find_cap(struct acpi_video_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 534 | acpi_integer status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | acpi_handle h_dummy1; |
| 536 | int i; |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 537 | u32 max_level = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | union acpi_object *obj = NULL; |
| 539 | struct acpi_video_device_brightness *br = NULL; |
| 540 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 542 | memset(&device->cap, 0, 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 544 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | device->cap._ADR = 1; |
| 546 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 547 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 548 | device->cap._BCL = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 550 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 551 | device->cap._BCM = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | } |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 553 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) |
| 554 | device->cap._BQC = 1; |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 555 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 556 | device->cap._DDC = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 558 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | device->cap._DCS = 1; |
| 560 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 561 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | device->cap._DGS = 1; |
| 563 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 564 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | device->cap._DSS = 1; |
| 566 | } |
| 567 | |
| 568 | status = acpi_video_device_lcd_query_levels(device, &obj); |
| 569 | |
| 570 | if (obj && obj->type == ACPI_TYPE_PACKAGE && obj->package.count >= 2) { |
| 571 | int count = 0; |
| 572 | union acpi_object *o; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 573 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 574 | br = kzalloc(sizeof(*br), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | if (!br) { |
| 576 | printk(KERN_ERR "can't allocate memory\n"); |
| 577 | } else { |
Paulo Marques | d1dd0c2 | 2005-03-30 22:39:49 -0500 | [diff] [blame] | 578 | br->levels = kmalloc(obj->package.count * |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 579 | sizeof *(br->levels), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | if (!br->levels) |
| 581 | goto out; |
| 582 | |
| 583 | for (i = 0; i < obj->package.count; i++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 584 | o = (union acpi_object *)&obj->package. |
| 585 | elements[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | if (o->type != ACPI_TYPE_INTEGER) { |
Len Brown | 6468463 | 2006-06-26 23:41:38 -0400 | [diff] [blame] | 587 | printk(KERN_ERR PREFIX "Invalid data\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | continue; |
| 589 | } |
| 590 | br->levels[count] = (u32) o->integer.value; |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 591 | if (br->levels[count] > max_level) |
| 592 | max_level = br->levels[count]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | count++; |
| 594 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 595 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | if (count < 2) { |
Paulo Marques | d1dd0c2 | 2005-03-30 22:39:49 -0500 | [diff] [blame] | 597 | kfree(br->levels); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | kfree(br); |
| 599 | } else { |
| 600 | br->count = count; |
| 601 | device->brightness = br; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 602 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 603 | "found %d brightness levels\n", |
| 604 | count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | } |
| 606 | } |
| 607 | } |
| 608 | |
Paulo Marques | d1dd0c2 | 2005-03-30 22:39:49 -0500 | [diff] [blame] | 609 | kfree(obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 611 | if (device->cap._BCL && device->cap._BCM && device->cap._BQC){ |
| 612 | unsigned long tmp; |
| 613 | static int count = 0; |
| 614 | char *name; |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 615 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); |
| 616 | if (!name) |
| 617 | return; |
| 618 | |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 619 | sprintf(name, "acpi_video%d", count++); |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 620 | acpi_video_device_lcd_get_level_current(device, &tmp); |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 621 | device->backlight = backlight_device_register(name, |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame^] | 622 | NULL, device, &acpi_backlight_ops); |
| 623 | device->backlight->props.max_brightness = max_level; |
| 624 | device->backlight->props.brightness = (int)tmp; |
| 625 | backlight_update_status(device->backlight); |
| 626 | |
Yu Luming | 2f3d000 | 2006-11-11 02:40:34 +0800 | [diff] [blame] | 627 | kfree(name); |
| 628 | } |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 629 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | /* |
| 633 | * Arg: |
| 634 | * device : video output device (VGA) |
| 635 | * |
| 636 | * Return Value: |
| 637 | * None |
| 638 | * |
| 639 | * Find out all required AML method defined under the video bus device. |
| 640 | */ |
| 641 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 642 | static void acpi_video_bus_find_cap(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 644 | acpi_handle h_dummy1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 646 | memset(&video->cap, 0, 4); |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 647 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | video->cap._DOS = 1; |
| 649 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 650 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | video->cap._DOD = 1; |
| 652 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 653 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | video->cap._ROM = 1; |
| 655 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 656 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | video->cap._GPD = 1; |
| 658 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 659 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | video->cap._SPD = 1; |
| 661 | } |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 662 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | video->cap._VPO = 1; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | * Check whether the video bus device has required AML method to |
| 669 | * support the desired features |
| 670 | */ |
| 671 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 672 | static int acpi_video_bus_check(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 674 | acpi_status status = -ENOENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | |
| 677 | if (!video) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 678 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
| 680 | /* Since there is no HID, CID and so on for VGA driver, we have |
| 681 | * to check well known required nodes. |
| 682 | */ |
| 683 | |
| 684 | /* Does this device able to support video switching ? */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 685 | if (video->cap._DOS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | video->flags.multihead = 1; |
| 687 | status = 0; |
| 688 | } |
| 689 | |
| 690 | /* Does this device able to retrieve a retrieve a video ROM ? */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 691 | if (video->cap._ROM) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | video->flags.rom = 1; |
| 693 | status = 0; |
| 694 | } |
| 695 | |
| 696 | /* Does this device able to configure which video device to POST ? */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 697 | if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | video->flags.post = 1; |
| 699 | status = 0; |
| 700 | } |
| 701 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 702 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | /* -------------------------------------------------------------------------- |
| 706 | FS Interface (/proc) |
| 707 | -------------------------------------------------------------------------- */ |
| 708 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 709 | static struct proc_dir_entry *acpi_video_dir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
| 711 | /* video devices */ |
| 712 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 713 | static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 715 | struct acpi_video_device *dev = seq->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
| 718 | if (!dev) |
| 719 | goto end; |
| 720 | |
| 721 | seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); |
| 722 | seq_printf(seq, "type: "); |
| 723 | if (dev->flags.crt) |
| 724 | seq_printf(seq, "CRT\n"); |
| 725 | else if (dev->flags.lcd) |
| 726 | seq_printf(seq, "LCD\n"); |
| 727 | else if (dev->flags.tvout) |
| 728 | seq_printf(seq, "TVOUT\n"); |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 729 | else if (dev->flags.dvi) |
| 730 | seq_printf(seq, "DVI\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | else |
| 732 | seq_printf(seq, "UNKNOWN\n"); |
| 733 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 734 | seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 736 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 737 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } |
| 739 | |
| 740 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 741 | acpi_video_device_info_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | { |
| 743 | return single_open(file, acpi_video_device_info_seq_show, |
| 744 | PDE(inode)->data); |
| 745 | } |
| 746 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 747 | static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 749 | int status; |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 750 | struct acpi_video_device *dev = seq->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 751 | unsigned long state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | |
| 754 | if (!dev) |
| 755 | goto end; |
| 756 | |
| 757 | status = acpi_video_device_get_state(dev, &state); |
| 758 | seq_printf(seq, "state: "); |
| 759 | if (ACPI_SUCCESS(status)) |
| 760 | seq_printf(seq, "0x%02lx\n", state); |
| 761 | else |
| 762 | seq_printf(seq, "<not supported>\n"); |
| 763 | |
| 764 | status = acpi_video_device_query(dev, &state); |
| 765 | seq_printf(seq, "query: "); |
| 766 | if (ACPI_SUCCESS(status)) |
| 767 | seq_printf(seq, "0x%02lx\n", state); |
| 768 | else |
| 769 | seq_printf(seq, "<not supported>\n"); |
| 770 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 771 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 772 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 776 | acpi_video_device_state_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | { |
| 778 | return single_open(file, acpi_video_device_state_seq_show, |
| 779 | PDE(inode)->data); |
| 780 | } |
| 781 | |
| 782 | static ssize_t |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 783 | acpi_video_device_write_state(struct file *file, |
| 784 | const char __user * buffer, |
| 785 | size_t count, loff_t * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 787 | int status; |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 788 | struct seq_file *m = file->private_data; |
| 789 | struct acpi_video_device *dev = m->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 790 | char str[12] = { 0 }; |
| 791 | u32 state = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
| 794 | if (!dev || count + 1 > sizeof str) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 795 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | |
| 797 | if (copy_from_user(str, buffer, count)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 798 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | |
| 800 | str[count] = 0; |
| 801 | state = simple_strtoul(str, NULL, 0); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 802 | state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
| 804 | status = acpi_video_device_set_state(dev, state); |
| 805 | |
| 806 | if (status) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 807 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 809 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 813 | acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 815 | struct acpi_video_device *dev = seq->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 816 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | |
| 819 | if (!dev || !dev->brightness) { |
| 820 | seq_printf(seq, "<not supported>\n"); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 821 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | seq_printf(seq, "levels: "); |
| 825 | for (i = 0; i < dev->brightness->count; i++) |
| 826 | seq_printf(seq, " %d", dev->brightness->levels[i]); |
| 827 | seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); |
| 828 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 829 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 833 | acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | { |
| 835 | return single_open(file, acpi_video_device_brightness_seq_show, |
| 836 | PDE(inode)->data); |
| 837 | } |
| 838 | |
| 839 | static ssize_t |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 840 | acpi_video_device_write_brightness(struct file *file, |
| 841 | const char __user * buffer, |
| 842 | size_t count, loff_t * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 844 | struct seq_file *m = file->private_data; |
| 845 | struct acpi_video_device *dev = m->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 846 | char str[4] = { 0 }; |
| 847 | unsigned int level = 0; |
| 848 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
Thomas Renninger | 59d399d | 2005-11-08 05:27:00 -0500 | [diff] [blame] | 851 | if (!dev || !dev->brightness || count + 1 > sizeof str) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 852 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | |
| 854 | if (copy_from_user(str, buffer, count)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 855 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | |
| 857 | str[count] = 0; |
| 858 | level = simple_strtoul(str, NULL, 0); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 859 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | if (level > 100) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 861 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | |
| 863 | /* validate though the list of available levels */ |
| 864 | for (i = 0; i < dev->brightness->count; i++) |
| 865 | if (level == dev->brightness->levels[i]) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 866 | if (ACPI_SUCCESS |
| 867 | (acpi_video_device_lcd_set_level(dev, level))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | dev->brightness->curr = level; |
| 869 | break; |
| 870 | } |
| 871 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 872 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | } |
| 874 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 875 | static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 877 | struct acpi_video_device *dev = seq->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 878 | int status; |
| 879 | int i; |
| 880 | union acpi_object *edid = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | |
| 883 | if (!dev) |
| 884 | goto out; |
| 885 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 886 | status = acpi_video_device_EDID(dev, &edid, 128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | if (ACPI_FAILURE(status)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 888 | status = acpi_video_device_EDID(dev, &edid, 256); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | if (ACPI_FAILURE(status)) { |
| 892 | goto out; |
| 893 | } |
| 894 | |
| 895 | if (edid && edid->type == ACPI_TYPE_BUFFER) { |
| 896 | for (i = 0; i < edid->buffer.length; i++) |
| 897 | seq_putc(seq, edid->buffer.pointer[i]); |
| 898 | } |
| 899 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 900 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | if (!edid) |
| 902 | seq_printf(seq, "<not supported>\n"); |
| 903 | else |
| 904 | kfree(edid); |
| 905 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 906 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | } |
| 908 | |
| 909 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 910 | acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | { |
| 912 | return single_open(file, acpi_video_device_EDID_seq_show, |
| 913 | PDE(inode)->data); |
| 914 | } |
| 915 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 916 | static int acpi_video_device_add_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 918 | struct proc_dir_entry *entry = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | struct acpi_video_device *vid_dev; |
| 920 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | |
| 922 | if (!device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 923 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 925 | vid_dev = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | if (!vid_dev) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 927 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
| 929 | if (!acpi_device_dir(device)) { |
| 930 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 931 | vid_dev->video->dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | if (!acpi_device_dir(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 933 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | acpi_device_dir(device)->owner = THIS_MODULE; |
| 935 | } |
| 936 | |
| 937 | /* 'info' [R] */ |
| 938 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); |
| 939 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 940 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | else { |
| 942 | entry->proc_fops = &acpi_video_device_info_fops; |
| 943 | entry->data = acpi_driver_data(device); |
| 944 | entry->owner = THIS_MODULE; |
| 945 | } |
| 946 | |
| 947 | /* 'state' [R/W] */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 948 | entry = |
| 949 | create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR, |
| 950 | acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 952 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | else { |
Arjan van de Ven | d479e90 | 2006-01-06 16:47:00 -0500 | [diff] [blame] | 954 | acpi_video_device_state_fops.write = acpi_video_device_write_state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | entry->proc_fops = &acpi_video_device_state_fops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | entry->data = acpi_driver_data(device); |
| 957 | entry->owner = THIS_MODULE; |
| 958 | } |
| 959 | |
| 960 | /* 'brightness' [R/W] */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 961 | entry = |
| 962 | create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR, |
| 963 | acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 965 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | else { |
Arjan van de Ven | d479e90 | 2006-01-06 16:47:00 -0500 | [diff] [blame] | 967 | acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | entry->proc_fops = &acpi_video_device_brightness_fops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | entry->data = acpi_driver_data(device); |
| 970 | entry->owner = THIS_MODULE; |
| 971 | } |
| 972 | |
| 973 | /* 'EDID' [R] */ |
| 974 | entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device)); |
| 975 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 976 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | else { |
| 978 | entry->proc_fops = &acpi_video_device_EDID_fops; |
| 979 | entry->data = acpi_driver_data(device); |
| 980 | entry->owner = THIS_MODULE; |
| 981 | } |
| 982 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 983 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | } |
| 985 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 986 | static int acpi_video_device_remove_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | { |
| 988 | struct acpi_video_device *vid_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 990 | vid_dev = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 992 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
| 994 | if (acpi_device_dir(device)) { |
| 995 | remove_proc_entry("info", acpi_device_dir(device)); |
| 996 | remove_proc_entry("state", acpi_device_dir(device)); |
| 997 | remove_proc_entry("brightness", acpi_device_dir(device)); |
| 998 | remove_proc_entry("EDID", acpi_device_dir(device)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 999 | remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | acpi_device_dir(device) = NULL; |
| 1001 | } |
| 1002 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1003 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | } |
| 1005 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | /* video bus */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1007 | static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1009 | struct acpi_video_bus *video = seq->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | |
| 1012 | if (!video) |
| 1013 | goto end; |
| 1014 | |
| 1015 | seq_printf(seq, "Switching heads: %s\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1016 | video->flags.multihead ? "yes" : "no"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | seq_printf(seq, "Video ROM: %s\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1018 | video->flags.rom ? "yes" : "no"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | seq_printf(seq, "Device to be POSTed on boot: %s\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1020 | video->flags.post ? "yes" : "no"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1022 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1023 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | } |
| 1025 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1026 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1028 | return single_open(file, acpi_video_bus_info_seq_show, |
| 1029 | PDE(inode)->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1030 | } |
| 1031 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1032 | static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1034 | struct acpi_video_bus *video = seq->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | |
| 1037 | if (!video) |
| 1038 | goto end; |
| 1039 | |
| 1040 | printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__); |
| 1041 | seq_printf(seq, "<TODO>\n"); |
| 1042 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1043 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1044 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | } |
| 1046 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1047 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | { |
| 1049 | return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); |
| 1050 | } |
| 1051 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1052 | static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1054 | struct acpi_video_bus *video = seq->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1055 | unsigned long options; |
| 1056 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | |
| 1059 | if (!video) |
| 1060 | goto end; |
| 1061 | |
| 1062 | status = acpi_video_bus_POST_options(video, &options); |
| 1063 | if (ACPI_SUCCESS(status)) { |
| 1064 | if (!(options & 1)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1065 | printk(KERN_WARNING PREFIX |
| 1066 | "The motherboard VGA device is not listed as a possible POST device.\n"); |
| 1067 | printk(KERN_WARNING PREFIX |
| 1068 | "This indicate a BIOS bug. Please contact the manufacturer.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | } |
| 1070 | printk("%lx\n", options); |
| 1071 | seq_printf(seq, "can POST: <intgrated video>"); |
| 1072 | if (options & 2) |
| 1073 | seq_printf(seq, " <PCI video>"); |
| 1074 | if (options & 4) |
| 1075 | seq_printf(seq, " <AGP video>"); |
| 1076 | seq_putc(seq, '\n'); |
| 1077 | } else |
| 1078 | seq_printf(seq, "<not supported>\n"); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1079 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1080 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | } |
| 1082 | |
| 1083 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1084 | acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1085 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1086 | return single_open(file, acpi_video_bus_POST_info_seq_show, |
| 1087 | PDE(inode)->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | } |
| 1089 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1090 | static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1091 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1092 | struct acpi_video_bus *video = seq->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1093 | int status; |
| 1094 | unsigned long id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | |
| 1097 | if (!video) |
| 1098 | goto end; |
| 1099 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1100 | status = acpi_video_bus_get_POST(video, &id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | if (!ACPI_SUCCESS(status)) { |
| 1102 | seq_printf(seq, "<not supported>\n"); |
| 1103 | goto end; |
| 1104 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1105 | seq_printf(seq, "device posted is <%s>\n", device_decode[id & 3]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1106 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1107 | end: |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1108 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | } |
| 1110 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1111 | static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1113 | struct acpi_video_bus *video = seq->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1116 | seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1118 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | } |
| 1120 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1121 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1123 | return single_open(file, acpi_video_bus_POST_seq_show, |
| 1124 | PDE(inode)->data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | } |
| 1126 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1127 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | { |
| 1129 | return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); |
| 1130 | } |
| 1131 | |
| 1132 | static ssize_t |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1133 | acpi_video_bus_write_POST(struct file *file, |
| 1134 | const char __user * buffer, |
| 1135 | size_t count, loff_t * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1137 | int status; |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1138 | struct seq_file *m = file->private_data; |
| 1139 | struct acpi_video_bus *video = m->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1140 | char str[12] = { 0 }; |
| 1141 | unsigned long opt, options; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | if (!video || count + 1 > sizeof str) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1145 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | |
| 1147 | status = acpi_video_bus_POST_options(video, &options); |
| 1148 | if (!ACPI_SUCCESS(status)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1149 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1150 | |
| 1151 | if (copy_from_user(str, buffer, count)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1152 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | |
| 1154 | str[count] = 0; |
| 1155 | opt = strtoul(str, NULL, 0); |
| 1156 | if (opt > 3) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1157 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | |
| 1159 | /* just in case an OEM 'forget' the motherboard... */ |
| 1160 | options |= 1; |
| 1161 | |
| 1162 | if (options & (1ul << opt)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1163 | status = acpi_video_bus_set_POST(video, opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | if (!ACPI_SUCCESS(status)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1165 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | |
| 1167 | } |
| 1168 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1169 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | } |
| 1171 | |
| 1172 | static ssize_t |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1173 | acpi_video_bus_write_DOS(struct file *file, |
| 1174 | const char __user * buffer, |
| 1175 | size_t count, loff_t * data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1177 | int status; |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1178 | struct seq_file *m = file->private_data; |
| 1179 | struct acpi_video_bus *video = m->private; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1180 | char str[12] = { 0 }; |
| 1181 | unsigned long opt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1182 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1184 | if (!video || count + 1 > sizeof str) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1185 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | |
| 1187 | if (copy_from_user(str, buffer, count)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1188 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1189 | |
| 1190 | str[count] = 0; |
| 1191 | opt = strtoul(str, NULL, 0); |
| 1192 | if (opt > 7) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1193 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1195 | status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | |
| 1197 | if (!ACPI_SUCCESS(status)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1198 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1200 | return count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1201 | } |
| 1202 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1203 | static int acpi_video_bus_add_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1205 | struct proc_dir_entry *entry = NULL; |
| 1206 | struct acpi_video_bus *video; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1209 | video = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | |
| 1211 | if (!acpi_device_dir(device)) { |
| 1212 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1213 | acpi_video_dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | if (!acpi_device_dir(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1215 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | video->dir = acpi_device_dir(device); |
| 1217 | acpi_device_dir(device)->owner = THIS_MODULE; |
| 1218 | } |
| 1219 | |
| 1220 | /* 'info' [R] */ |
| 1221 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); |
| 1222 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1223 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | else { |
| 1225 | entry->proc_fops = &acpi_video_bus_info_fops; |
| 1226 | entry->data = acpi_driver_data(device); |
| 1227 | entry->owner = THIS_MODULE; |
| 1228 | } |
| 1229 | |
| 1230 | /* 'ROM' [R] */ |
| 1231 | entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device)); |
| 1232 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1233 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | else { |
| 1235 | entry->proc_fops = &acpi_video_bus_ROM_fops; |
| 1236 | entry->data = acpi_driver_data(device); |
| 1237 | entry->owner = THIS_MODULE; |
| 1238 | } |
| 1239 | |
| 1240 | /* 'POST_info' [R] */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1241 | entry = |
| 1242 | create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1243 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1244 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | else { |
| 1246 | entry->proc_fops = &acpi_video_bus_POST_info_fops; |
| 1247 | entry->data = acpi_driver_data(device); |
| 1248 | entry->owner = THIS_MODULE; |
| 1249 | } |
| 1250 | |
| 1251 | /* 'POST' [R/W] */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1252 | entry = |
| 1253 | create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR, |
| 1254 | acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1255 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1256 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | else { |
Arjan van de Ven | d479e90 | 2006-01-06 16:47:00 -0500 | [diff] [blame] | 1258 | acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | entry->proc_fops = &acpi_video_bus_POST_fops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | entry->data = acpi_driver_data(device); |
| 1261 | entry->owner = THIS_MODULE; |
| 1262 | } |
| 1263 | |
| 1264 | /* 'DOS' [R/W] */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1265 | entry = |
| 1266 | create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR, |
| 1267 | acpi_device_dir(device)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | if (!entry) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1269 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | else { |
Arjan van de Ven | d479e90 | 2006-01-06 16:47:00 -0500 | [diff] [blame] | 1271 | acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | entry->proc_fops = &acpi_video_bus_DOS_fops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | entry->data = acpi_driver_data(device); |
| 1274 | entry->owner = THIS_MODULE; |
| 1275 | } |
| 1276 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1277 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | } |
| 1279 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1280 | static int acpi_video_bus_remove_fs(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1282 | struct acpi_video_bus *video; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1285 | video = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | |
| 1287 | if (acpi_device_dir(device)) { |
| 1288 | remove_proc_entry("info", acpi_device_dir(device)); |
| 1289 | remove_proc_entry("ROM", acpi_device_dir(device)); |
| 1290 | remove_proc_entry("POST_info", acpi_device_dir(device)); |
| 1291 | remove_proc_entry("POST", acpi_device_dir(device)); |
| 1292 | remove_proc_entry("DOS", acpi_device_dir(device)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1293 | remove_proc_entry(acpi_device_bid(device), acpi_video_dir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | acpi_device_dir(device) = NULL; |
| 1295 | } |
| 1296 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1297 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | } |
| 1299 | |
| 1300 | /* -------------------------------------------------------------------------- |
| 1301 | Driver Interface |
| 1302 | -------------------------------------------------------------------------- */ |
| 1303 | |
| 1304 | /* device interface */ |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 1305 | static struct acpi_video_device_attrib* |
| 1306 | acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) |
| 1307 | { |
| 1308 | int count; |
| 1309 | |
| 1310 | for(count = 0; count < video->attached_count; count++) |
| 1311 | if((video->attached_array[count].value.int_val & 0xffff) == device_id) |
| 1312 | return &(video->attached_array[count].value.attrib); |
| 1313 | return NULL; |
| 1314 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1315 | |
| 1316 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1317 | acpi_video_bus_get_one_device(struct acpi_device *device, |
| 1318 | struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1320 | unsigned long device_id; |
Yu, Luming | 973bf49 | 2006-04-27 05:25:00 -0400 | [diff] [blame] | 1321 | int status; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1322 | struct acpi_video_device *data; |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 1323 | struct acpi_video_device_attrib* attribute; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | |
| 1325 | if (!device || !video) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1326 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1328 | status = |
| 1329 | acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1330 | if (ACPI_SUCCESS(status)) { |
| 1331 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 1332 | data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | if (!data) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1334 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME); |
| 1337 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); |
| 1338 | acpi_driver_data(device) = data; |
| 1339 | |
| 1340 | data->device_id = device_id; |
| 1341 | data->video = video; |
| 1342 | data->dev = device; |
| 1343 | |
Rui Zhang | 82cae99 | 2007-01-03 23:40:53 -0500 | [diff] [blame] | 1344 | attribute = acpi_video_get_device_attr(video, device_id); |
| 1345 | |
| 1346 | if((attribute != NULL) && attribute->device_id_scheme) { |
| 1347 | switch (attribute->display_type) { |
| 1348 | case ACPI_VIDEO_DISPLAY_CRT: |
| 1349 | data->flags.crt = 1; |
| 1350 | break; |
| 1351 | case ACPI_VIDEO_DISPLAY_TV: |
| 1352 | data->flags.tvout = 1; |
| 1353 | break; |
| 1354 | case ACPI_VIDEO_DISPLAY_DVI: |
| 1355 | data->flags.dvi = 1; |
| 1356 | break; |
| 1357 | case ACPI_VIDEO_DISPLAY_LCD: |
| 1358 | data->flags.lcd = 1; |
| 1359 | break; |
| 1360 | default: |
| 1361 | data->flags.unknown = 1; |
| 1362 | break; |
| 1363 | } |
| 1364 | if(attribute->bios_can_detect) |
| 1365 | data->flags.bios = 1; |
| 1366 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | data->flags.unknown = 1; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1368 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | acpi_video_device_bind(video, data); |
| 1370 | acpi_video_device_find_cap(data); |
| 1371 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 1372 | status = acpi_install_notify_handler(device->handle, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1373 | ACPI_DEVICE_NOTIFY, |
| 1374 | acpi_video_device_notify, |
| 1375 | data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | if (ACPI_FAILURE(status)) { |
| 1377 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1378 | "Error installing notify handler\n")); |
Yu, Luming | 973bf49 | 2006-04-27 05:25:00 -0400 | [diff] [blame] | 1379 | if(data->brightness) |
| 1380 | kfree(data->brightness->levels); |
| 1381 | kfree(data->brightness); |
| 1382 | kfree(data); |
| 1383 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | } |
| 1385 | |
| 1386 | down(&video->sem); |
| 1387 | list_add_tail(&data->entry, &video->video_device_list); |
| 1388 | up(&video->sem); |
| 1389 | |
| 1390 | acpi_video_device_add_fs(device); |
| 1391 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1392 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | } |
| 1394 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1395 | return -ENOENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | } |
| 1397 | |
| 1398 | /* |
| 1399 | * Arg: |
| 1400 | * video : video bus device |
| 1401 | * |
| 1402 | * Return: |
| 1403 | * none |
| 1404 | * |
| 1405 | * Enumerate the video device list of the video bus, |
| 1406 | * bind the ids with the corresponding video devices |
| 1407 | * under the video bus. |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1408 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1409 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1410 | static void acpi_video_device_rebind(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1412 | struct list_head *node, *next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1413 | list_for_each_safe(node, next, &video->video_device_list) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1414 | struct acpi_video_device *dev = |
| 1415 | container_of(node, struct acpi_video_device, entry); |
| 1416 | acpi_video_device_bind(video, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1417 | } |
| 1418 | } |
| 1419 | |
| 1420 | /* |
| 1421 | * Arg: |
| 1422 | * video : video bus device |
| 1423 | * device : video output device under the video |
| 1424 | * bus |
| 1425 | * |
| 1426 | * Return: |
| 1427 | * none |
| 1428 | * |
| 1429 | * Bind the ids with the corresponding video devices |
| 1430 | * under the video bus. |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1431 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1432 | |
| 1433 | static void |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1434 | acpi_video_device_bind(struct acpi_video_bus *video, |
| 1435 | struct acpi_video_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1437 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | |
| 1439 | #define IDS_VAL(i) video->attached_array[i].value.int_val |
| 1440 | #define IDS_BIND(i) video->attached_array[i].bind_info |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1441 | |
| 1442 | for (i = 0; IDS_VAL(i) != ACPI_VIDEO_HEAD_INVALID && |
| 1443 | i < video->attached_count; i++) { |
| 1444 | if (device->device_id == (IDS_VAL(i) & 0xffff)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | IDS_BIND(i) = device; |
| 1446 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "device_bind %d\n", i)); |
| 1447 | } |
| 1448 | } |
| 1449 | #undef IDS_VAL |
| 1450 | #undef IDS_BIND |
| 1451 | } |
| 1452 | |
| 1453 | /* |
| 1454 | * Arg: |
| 1455 | * video : video bus device |
| 1456 | * |
| 1457 | * Return: |
| 1458 | * < 0 : error |
| 1459 | * |
| 1460 | * Call _DOD to enumerate all devices attached to display adapter |
| 1461 | * |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1462 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | |
| 1464 | static int acpi_video_device_enumerate(struct acpi_video_bus *video) |
| 1465 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1466 | int status; |
| 1467 | int count; |
| 1468 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | struct acpi_video_enumerated_device *active_device_list; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1470 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
| 1471 | union acpi_object *dod = NULL; |
| 1472 | union acpi_object *obj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 1474 | status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | if (!ACPI_SUCCESS(status)) { |
Thomas Renninger | a6fc672 | 2006-06-26 23:58:43 -0400 | [diff] [blame] | 1476 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1477 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | } |
| 1479 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1480 | dod = buffer.pointer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { |
Thomas Renninger | a6fc672 | 2006-06-26 23:58:43 -0400 | [diff] [blame] | 1482 | ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | status = -EFAULT; |
| 1484 | goto out; |
| 1485 | } |
| 1486 | |
| 1487 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d video heads in _DOD\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1488 | dod->package.count)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1490 | active_device_list = kmalloc((1 + |
| 1491 | dod->package.count) * |
| 1492 | sizeof(struct |
| 1493 | acpi_video_enumerated_device), |
| 1494 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | |
| 1496 | if (!active_device_list) { |
| 1497 | status = -ENOMEM; |
| 1498 | goto out; |
| 1499 | } |
| 1500 | |
| 1501 | count = 0; |
| 1502 | for (i = 0; i < dod->package.count; i++) { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1503 | obj = &dod->package.elements[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | |
| 1505 | if (obj->type != ACPI_TYPE_INTEGER) { |
Len Brown | 6468463 | 2006-06-26 23:41:38 -0400 | [diff] [blame] | 1506 | printk(KERN_ERR PREFIX "Invalid _DOD data\n"); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1507 | active_device_list[i].value.int_val = |
| 1508 | ACPI_VIDEO_HEAD_INVALID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | } |
| 1510 | active_device_list[i].value.int_val = obj->integer.value; |
| 1511 | active_device_list[i].bind_info = NULL; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1512 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "dod element[%d] = %d\n", i, |
| 1513 | (int)obj->integer.value)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | count++; |
| 1515 | } |
| 1516 | active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END; |
| 1517 | |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 1518 | kfree(video->attached_array); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | video->attached_array = active_device_list; |
| 1521 | video->attached_count = count; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1522 | out: |
Len Brown | 02438d8 | 2006-06-30 03:19:10 -0400 | [diff] [blame] | 1523 | kfree(buffer.pointer); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1524 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | } |
| 1526 | |
| 1527 | /* |
| 1528 | * Arg: |
| 1529 | * video : video bus device |
| 1530 | * event : Nontify Event |
| 1531 | * |
| 1532 | * Return: |
| 1533 | * < 0 : error |
| 1534 | * |
| 1535 | * 1. Find out the current active output device. |
| 1536 | * 2. Identify the next output device to switch |
| 1537 | * 3. call _DSS to do actual switch. |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1538 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1540 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1541 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1542 | struct list_head *node, *next; |
| 1543 | struct acpi_video_device *dev = NULL; |
| 1544 | struct acpi_video_device *dev_next = NULL; |
| 1545 | struct acpi_video_device *dev_prev = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1546 | unsigned long state; |
| 1547 | int status = 0; |
| 1548 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | |
| 1550 | list_for_each_safe(node, next, &video->video_device_list) { |
Adrian Bunk | 7334571 | 2005-03-30 22:31:35 -0500 | [diff] [blame] | 1551 | dev = container_of(node, struct acpi_video_device, entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1552 | status = acpi_video_device_get_state(dev, &state); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1553 | if (state & 0x2) { |
| 1554 | dev_next = |
| 1555 | container_of(node->next, struct acpi_video_device, |
| 1556 | entry); |
| 1557 | dev_prev = |
| 1558 | container_of(node->prev, struct acpi_video_device, |
| 1559 | entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | goto out; |
| 1561 | } |
| 1562 | } |
| 1563 | dev_next = container_of(node->next, struct acpi_video_device, entry); |
| 1564 | dev_prev = container_of(node->prev, struct acpi_video_device, entry); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1565 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | switch (event) { |
| 1567 | case ACPI_VIDEO_NOTIFY_CYCLE: |
| 1568 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: |
| 1569 | acpi_video_device_set_state(dev, 0); |
| 1570 | acpi_video_device_set_state(dev_next, 0x80000001); |
| 1571 | break; |
| 1572 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: |
| 1573 | acpi_video_device_set_state(dev, 0); |
| 1574 | acpi_video_device_set_state(dev_prev, 0x80000001); |
| 1575 | default: |
| 1576 | break; |
| 1577 | } |
| 1578 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1579 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1580 | } |
| 1581 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1582 | static int |
| 1583 | acpi_video_get_next_level(struct acpi_video_device *device, |
| 1584 | u32 level_current, u32 event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | { |
Thomas Tuttle | f471518 | 2006-12-19 12:56:14 -0800 | [diff] [blame] | 1586 | int min, max, min_above, max_below, i, l; |
| 1587 | max = max_below = 0; |
| 1588 | min = min_above = 255; |
| 1589 | for (i = 0; i < device->brightness->count; i++) { |
| 1590 | l = device->brightness->levels[i]; |
| 1591 | if (l < min) |
| 1592 | min = l; |
| 1593 | if (l > max) |
| 1594 | max = l; |
| 1595 | if (l < min_above && l > level_current) |
| 1596 | min_above = l; |
| 1597 | if (l > max_below && l < level_current) |
| 1598 | max_below = l; |
| 1599 | } |
| 1600 | |
| 1601 | switch (event) { |
| 1602 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: |
| 1603 | return (level_current < max) ? min_above : min; |
| 1604 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: |
| 1605 | return (level_current < max) ? min_above : max; |
| 1606 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: |
| 1607 | return (level_current > min) ? max_below : min; |
| 1608 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: |
| 1609 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: |
| 1610 | return 0; |
| 1611 | default: |
| 1612 | return level_current; |
| 1613 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | } |
| 1615 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1616 | static void |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1617 | acpi_video_switch_brightness(struct acpi_video_device *device, int event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | { |
| 1619 | unsigned long level_current, level_next; |
| 1620 | acpi_video_device_lcd_get_level_current(device, &level_current); |
| 1621 | level_next = acpi_video_get_next_level(device, level_current, event); |
| 1622 | acpi_video_device_lcd_set_level(device, level_next); |
| 1623 | } |
| 1624 | |
| 1625 | static int |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1626 | acpi_video_bus_get_devices(struct acpi_video_bus *video, |
| 1627 | struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1629 | int status = 0; |
| 1630 | struct list_head *node, *next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1632 | |
| 1633 | acpi_video_device_enumerate(video); |
| 1634 | |
| 1635 | list_for_each_safe(node, next, &device->children) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1636 | struct acpi_device *dev = |
| 1637 | list_entry(node, struct acpi_device, node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | |
| 1639 | if (!dev) |
| 1640 | continue; |
| 1641 | |
| 1642 | status = acpi_video_bus_get_one_device(dev, video); |
| 1643 | if (ACPI_FAILURE(status)) { |
Thomas Renninger | a6fc672 | 2006-06-26 23:58:43 -0400 | [diff] [blame] | 1644 | ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | continue; |
| 1646 | } |
| 1647 | |
| 1648 | } |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1649 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | } |
| 1651 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1652 | static int acpi_video_bus_put_one_device(struct acpi_video_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | { |
Karol Kozimor | 031ec77 | 2005-07-30 04:18:00 -0400 | [diff] [blame] | 1654 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | struct acpi_video_bus *video; |
| 1656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | |
| 1658 | if (!device || !device->video) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1659 | return -ENOENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1660 | |
| 1661 | video = device->video; |
| 1662 | |
| 1663 | down(&video->sem); |
| 1664 | list_del(&device->entry); |
| 1665 | up(&video->sem); |
| 1666 | acpi_video_device_remove_fs(device->dev); |
| 1667 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 1668 | status = acpi_remove_notify_handler(device->dev->handle, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1669 | ACPI_DEVICE_NOTIFY, |
| 1670 | acpi_video_device_notify); |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame^] | 1671 | backlight_device_unregister(device->backlight); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1672 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | } |
| 1674 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1675 | static int acpi_video_bus_put_devices(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1677 | int status; |
| 1678 | struct list_head *node, *next; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | |
| 1681 | list_for_each_safe(node, next, &video->video_device_list) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1682 | struct acpi_video_device *data = |
| 1683 | list_entry(node, struct acpi_video_device, entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | if (!data) |
| 1685 | continue; |
| 1686 | |
| 1687 | status = acpi_video_bus_put_one_device(data); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1688 | if (ACPI_FAILURE(status)) |
| 1689 | printk(KERN_WARNING PREFIX |
| 1690 | "hhuuhhuu bug in acpi video driver.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | |
Dave Jones | d384ea6 | 2006-06-24 00:33:08 -0400 | [diff] [blame] | 1692 | if (data->brightness) |
Yu, Luming | 973bf49 | 2006-04-27 05:25:00 -0400 | [diff] [blame] | 1693 | kfree(data->brightness->levels); |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 1694 | kfree(data->brightness); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1695 | kfree(data); |
| 1696 | } |
| 1697 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1698 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | } |
| 1700 | |
| 1701 | /* acpi_video interface */ |
| 1702 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1703 | static int acpi_video_bus_start_devices(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | { |
| 1705 | return acpi_video_bus_DOS(video, 1, 0); |
| 1706 | } |
| 1707 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1708 | static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | { |
| 1710 | return acpi_video_bus_DOS(video, 0, 1); |
| 1711 | } |
| 1712 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1713 | static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1714 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1715 | struct acpi_video_bus *video = data; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1716 | struct acpi_device *device = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | printk("video bus notify\n"); |
| 1719 | |
| 1720 | if (!video) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1721 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1722 | |
Patrick Mochel | e6afa0d | 2006-05-19 16:54:40 -0400 | [diff] [blame] | 1723 | device = video->device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | |
| 1725 | switch (event) { |
| 1726 | case ACPI_VIDEO_NOTIFY_SWITCH: /* User request that a switch occur, |
| 1727 | * most likely via hotkey. */ |
| 1728 | acpi_bus_generate_event(device, event, 0); |
| 1729 | break; |
| 1730 | |
| 1731 | case ACPI_VIDEO_NOTIFY_PROBE: /* User plug or remove a video |
| 1732 | * connector. */ |
| 1733 | acpi_video_device_enumerate(video); |
| 1734 | acpi_video_device_rebind(video); |
| 1735 | acpi_video_switch_output(video, event); |
| 1736 | acpi_bus_generate_event(device, event, 0); |
| 1737 | break; |
| 1738 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1739 | case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ |
| 1740 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ |
| 1741 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1742 | acpi_video_switch_output(video, event); |
| 1743 | acpi_bus_generate_event(device, event, 0); |
| 1744 | break; |
| 1745 | |
| 1746 | default: |
| 1747 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1748 | "Unsupported event [0x%x]\n", event)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | break; |
| 1750 | } |
| 1751 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1752 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | } |
| 1754 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1755 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | { |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1757 | struct acpi_video_device *video_device = data; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1758 | struct acpi_device *device = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | if (!video_device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1761 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | |
Patrick Mochel | e6afa0d | 2006-05-19 16:54:40 -0400 | [diff] [blame] | 1763 | device = video_device->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | |
| 1765 | switch (event) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1766 | case ACPI_VIDEO_NOTIFY_SWITCH: /* change in status (cycle output device) */ |
| 1767 | case ACPI_VIDEO_NOTIFY_PROBE: /* change in status (output device status) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | acpi_bus_generate_event(device, event, 0); |
| 1769 | break; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1770 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ |
| 1771 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ |
| 1772 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ |
| 1773 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ |
| 1774 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ |
| 1775 | acpi_video_switch_brightness(video_device, event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | acpi_bus_generate_event(device, event, 0); |
| 1777 | break; |
| 1778 | default: |
| 1779 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1780 | "Unsupported event [0x%x]\n", event)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1781 | break; |
| 1782 | } |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1783 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | } |
| 1785 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1786 | static int acpi_video_bus_add(struct acpi_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1788 | int result = 0; |
| 1789 | acpi_status status = 0; |
| 1790 | struct acpi_video_bus *video = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1792 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | if (!device) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1794 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | |
Burman Yan | 36bcbec | 2006-12-19 12:56:11 -0800 | [diff] [blame] | 1796 | video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | if (!video) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1798 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | |
Patrick Mochel | e6afa0d | 2006-05-19 16:54:40 -0400 | [diff] [blame] | 1800 | video->device = device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1801 | strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); |
| 1802 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); |
| 1803 | acpi_driver_data(device) = video; |
| 1804 | |
| 1805 | acpi_video_bus_find_cap(video); |
| 1806 | result = acpi_video_bus_check(video); |
| 1807 | if (result) |
| 1808 | goto end; |
| 1809 | |
| 1810 | result = acpi_video_bus_add_fs(device); |
| 1811 | if (result) |
| 1812 | goto end; |
| 1813 | |
| 1814 | init_MUTEX(&video->sem); |
| 1815 | INIT_LIST_HEAD(&video->video_device_list); |
| 1816 | |
| 1817 | acpi_video_bus_get_devices(video, device); |
| 1818 | acpi_video_bus_start_devices(video); |
| 1819 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 1820 | status = acpi_install_notify_handler(device->handle, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1821 | ACPI_DEVICE_NOTIFY, |
| 1822 | acpi_video_bus_notify, video); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | if (ACPI_FAILURE(status)) { |
| 1824 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1825 | "Error installing notify handler\n")); |
Yu, Luming | 973bf49 | 2006-04-27 05:25:00 -0400 | [diff] [blame] | 1826 | acpi_video_bus_stop_devices(video); |
| 1827 | acpi_video_bus_put_devices(video); |
| 1828 | kfree(video->attached_array); |
| 1829 | acpi_video_bus_remove_fs(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | result = -ENODEV; |
| 1831 | goto end; |
| 1832 | } |
| 1833 | |
| 1834 | printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1835 | ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), |
| 1836 | video->flags.multihead ? "yes" : "no", |
| 1837 | video->flags.rom ? "yes" : "no", |
| 1838 | video->flags.post ? "yes" : "no"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1840 | end: |
Yu, Luming | 973bf49 | 2006-04-27 05:25:00 -0400 | [diff] [blame] | 1841 | if (result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | kfree(video); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1843 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1844 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | } |
| 1846 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1847 | static int acpi_video_bus_remove(struct acpi_device *device, int type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1848 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1849 | acpi_status status = 0; |
| 1850 | struct acpi_video_bus *video = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | |
| 1853 | if (!device || !acpi_driver_data(device)) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1854 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1855 | |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 1856 | video = acpi_driver_data(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1857 | |
| 1858 | acpi_video_bus_stop_devices(video); |
| 1859 | |
Patrick Mochel | 9013026 | 2006-05-19 16:54:48 -0400 | [diff] [blame] | 1860 | status = acpi_remove_notify_handler(video->device->handle, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1861 | ACPI_DEVICE_NOTIFY, |
| 1862 | acpi_video_bus_notify); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | |
| 1864 | acpi_video_bus_put_devices(video); |
| 1865 | acpi_video_bus_remove_fs(device); |
| 1866 | |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 1867 | kfree(video->attached_array); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1868 | kfree(video); |
| 1869 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1870 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | } |
| 1872 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1873 | static int __init acpi_video_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1874 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1875 | int result = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1877 | |
| 1878 | /* |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1879 | acpi_dbg_level = 0xFFFFFFFF; |
| 1880 | acpi_dbg_layer = 0x08000000; |
| 1881 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | |
| 1883 | acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); |
| 1884 | if (!acpi_video_dir) |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1885 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | acpi_video_dir->owner = THIS_MODULE; |
| 1887 | |
| 1888 | result = acpi_bus_register_driver(&acpi_video_bus); |
| 1889 | if (result < 0) { |
| 1890 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1891 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | } |
| 1893 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1894 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1895 | } |
| 1896 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 1897 | static void __exit acpi_video_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1898 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | |
| 1900 | acpi_bus_unregister_driver(&acpi_video_bus); |
| 1901 | |
| 1902 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); |
| 1903 | |
Patrick Mochel | d550d98 | 2006-06-27 00:41:40 -0400 | [diff] [blame] | 1904 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | } |
| 1906 | |
| 1907 | module_init(acpi_video_init); |
| 1908 | module_exit(acpi_video_exit); |