Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1 | /* |
| 2 | * drivers/hwmon/applesmc.c - driver for Apple's SMC (accelerometer, temperature |
| 3 | * sensors, fan control, keyboard backlight control) used in Intel-based Apple |
| 4 | * computers. |
| 5 | * |
| 6 | * Copyright (C) 2007 Nicolas Boichat <nicolas@boichat.ch> |
Henrik Rydberg | 41e71f9 | 2010-11-09 15:15:11 +0000 | [diff] [blame] | 7 | * Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se> |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 8 | * |
| 9 | * Based on hdaps.c driver: |
| 10 | * Copyright (C) 2005 Robert Love <rml@novell.com> |
| 11 | * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com> |
| 12 | * |
| 13 | * Fan control based on smcFanControl: |
| 14 | * Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com> |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or modify it |
| 17 | * under the terms of the GNU General Public License v2 as published by the |
| 18 | * Free Software Foundation. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 21 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 23 | * more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License along with |
| 26 | * this program; if not, write to the Free Software Foundation, Inc., |
| 27 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
| 28 | */ |
| 29 | |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 31 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 32 | #include <linux/delay.h> |
| 33 | #include <linux/platform_device.h> |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 34 | #include <linux/input-polldev.h> |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 35 | #include <linux/kernel.h> |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 36 | #include <linux/slab.h> |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 37 | #include <linux/module.h> |
| 38 | #include <linux/timer.h> |
| 39 | #include <linux/dmi.h> |
| 40 | #include <linux/mutex.h> |
| 41 | #include <linux/hwmon-sysfs.h> |
H Hartley Sweeten | 6055fae | 2009-09-15 17:18:13 +0200 | [diff] [blame] | 42 | #include <linux/io.h> |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 43 | #include <linux/leds.h> |
| 44 | #include <linux/hwmon.h> |
| 45 | #include <linux/workqueue.h> |
| 46 | |
| 47 | /* data port used by Apple SMC */ |
| 48 | #define APPLESMC_DATA_PORT 0x300 |
| 49 | /* command/status port used by Apple SMC */ |
| 50 | #define APPLESMC_CMD_PORT 0x304 |
| 51 | |
| 52 | #define APPLESMC_NR_PORTS 32 /* 0x300-0x31f */ |
| 53 | |
| 54 | #define APPLESMC_MAX_DATA_LENGTH 32 |
| 55 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 56 | /* wait up to 32 ms for a status change. */ |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 57 | #define APPLESMC_MIN_WAIT 0x0040 |
| 58 | #define APPLESMC_MAX_WAIT 0x8000 |
| 59 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 60 | #define APPLESMC_STATUS_MASK 0x0f |
| 61 | #define APPLESMC_READ_CMD 0x10 |
| 62 | #define APPLESMC_WRITE_CMD 0x11 |
| 63 | #define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12 |
| 64 | #define APPLESMC_GET_KEY_TYPE_CMD 0x13 |
| 65 | |
| 66 | #define KEY_COUNT_KEY "#KEY" /* r-o ui32 */ |
| 67 | |
Henrik Rydberg | 8bd1a12 | 2008-10-18 20:27:39 -0700 | [diff] [blame] | 68 | #define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6-10 bytes) */ |
| 69 | #define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6-10 bytes) */ |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 70 | #define BACKLIGHT_KEY "LKSB" /* w-o {lkb (2 bytes) */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 71 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 72 | #define CLAMSHELL_KEY "MSLD" /* r-o ui8 (unused) */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 73 | |
| 74 | #define MOTION_SENSOR_X_KEY "MO_X" /* r-o sp78 (2 bytes) */ |
| 75 | #define MOTION_SENSOR_Y_KEY "MO_Y" /* r-o sp78 (2 bytes) */ |
| 76 | #define MOTION_SENSOR_Z_KEY "MO_Z" /* r-o sp78 (2 bytes) */ |
| 77 | #define MOTION_SENSOR_KEY "MOCN" /* r/w ui16 */ |
| 78 | |
| 79 | #define FANS_COUNT "FNum" /* r-o ui8 */ |
| 80 | #define FANS_MANUAL "FS! " /* r-w ui16 */ |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 81 | #define FAN_ID_FMT "F%dID" /* r-o char[16] */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 82 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 83 | /* List of keys used to read/write fan speeds */ |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 84 | static const char *const fan_speed_fmt[] = { |
| 85 | "F%dAc", /* actual speed */ |
| 86 | "F%dMn", /* minimum speed (rw) */ |
| 87 | "F%dMx", /* maximum speed */ |
| 88 | "F%dSf", /* safe speed - not all models */ |
| 89 | "F%dTg", /* target speed (manual: rw) */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 90 | }; |
| 91 | |
| 92 | #define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */ |
| 93 | #define INIT_WAIT_MSECS 50 /* ... in 50ms increments */ |
| 94 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 95 | #define APPLESMC_POLL_INTERVAL 50 /* msecs */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 96 | #define APPLESMC_INPUT_FUZZ 4 /* input event threshold */ |
| 97 | #define APPLESMC_INPUT_FLAT 4 |
| 98 | |
| 99 | #define SENSOR_X 0 |
| 100 | #define SENSOR_Y 1 |
| 101 | #define SENSOR_Z 2 |
| 102 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 103 | #define to_index(attr) (to_sensor_dev_attr(attr)->index & 0xffff) |
| 104 | #define to_option(attr) (to_sensor_dev_attr(attr)->index >> 16) |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 105 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 106 | /* Dynamic device node attributes */ |
| 107 | struct applesmc_dev_attr { |
| 108 | struct sensor_device_attribute sda; /* hwmon attributes */ |
| 109 | char name[32]; /* room for node file name */ |
| 110 | }; |
| 111 | |
| 112 | /* Dynamic device node group */ |
| 113 | struct applesmc_node_group { |
| 114 | char *format; /* format string */ |
| 115 | void *show; /* show function */ |
| 116 | void *store; /* store function */ |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 117 | int option; /* function argument */ |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 118 | struct applesmc_dev_attr *nodes; /* dynamic node array */ |
| 119 | }; |
| 120 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 121 | /* AppleSMC entry - cached register information */ |
| 122 | struct applesmc_entry { |
| 123 | char key[5]; /* four-letter key code */ |
| 124 | u8 valid; /* set when entry is successfully read once */ |
| 125 | u8 len; /* bounded by APPLESMC_MAX_DATA_LENGTH */ |
| 126 | char type[5]; /* four-letter type code */ |
| 127 | u8 flags; /* 0x10: func; 0x40: write; 0x80: read */ |
| 128 | }; |
| 129 | |
| 130 | /* Register lookup and registers common to all SMCs */ |
| 131 | static struct applesmc_registers { |
| 132 | struct mutex mutex; /* register read/write mutex */ |
| 133 | unsigned int key_count; /* number of SMC registers */ |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 134 | unsigned int fan_count; /* number of fans */ |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 135 | unsigned int temp_count; /* number of temperature registers */ |
| 136 | unsigned int temp_begin; /* temperature lower index bound */ |
| 137 | unsigned int temp_end; /* temperature upper index bound */ |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 138 | int num_light_sensors; /* number of light sensors */ |
| 139 | bool has_accelerometer; /* has motion sensor */ |
| 140 | bool has_key_backlight; /* has keyboard backlight */ |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 141 | bool init_complete; /* true when fully initialized */ |
| 142 | struct applesmc_entry *cache; /* cached key entries */ |
| 143 | } smcreg = { |
| 144 | .mutex = __MUTEX_INITIALIZER(smcreg.mutex), |
| 145 | }; |
| 146 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 147 | static const int debug; |
| 148 | static struct platform_device *pdev; |
| 149 | static s16 rest_x; |
| 150 | static s16 rest_y; |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 151 | static u8 backlight_state[2]; |
| 152 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 153 | static struct device *hwmon_dev; |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 154 | static struct input_polled_dev *applesmc_idev; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 155 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 156 | /* |
| 157 | * Last index written to key_at_index sysfs file, and value to use for all other |
| 158 | * key_at_index_* sysfs files. |
| 159 | */ |
| 160 | static unsigned int key_at_index; |
| 161 | |
| 162 | static struct workqueue_struct *applesmc_led_wq; |
| 163 | |
| 164 | /* |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 165 | * __wait_status - Wait up to 32ms for the status port to get a certain value |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 166 | * (masked with 0x0f), returning zero if the value is obtained. Callers must |
| 167 | * hold applesmc_lock. |
| 168 | */ |
| 169 | static int __wait_status(u8 val) |
| 170 | { |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 171 | int us; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 172 | |
| 173 | val = val & APPLESMC_STATUS_MASK; |
| 174 | |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 175 | for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { |
| 176 | udelay(us); |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 177 | if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 178 | return 0; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 179 | } |
| 180 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 181 | return -EIO; |
| 182 | } |
| 183 | |
| 184 | /* |
Henrik Rydberg | 84d2d7f | 2008-10-18 20:27:38 -0700 | [diff] [blame] | 185 | * special treatment of command port - on newer macbooks, it seems necessary |
| 186 | * to resend the command byte before polling the status again. Callers must |
| 187 | * hold applesmc_lock. |
| 188 | */ |
| 189 | static int send_command(u8 cmd) |
| 190 | { |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 191 | int us; |
| 192 | for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) { |
Henrik Rydberg | 84d2d7f | 2008-10-18 20:27:38 -0700 | [diff] [blame] | 193 | outb(cmd, APPLESMC_CMD_PORT); |
Henrik Rydberg | 8c9398d | 2008-10-18 20:27:43 -0700 | [diff] [blame] | 194 | udelay(us); |
Henrik Rydberg | 84d2d7f | 2008-10-18 20:27:38 -0700 | [diff] [blame] | 195 | if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == 0x0c) |
| 196 | return 0; |
Henrik Rydberg | 84d2d7f | 2008-10-18 20:27:38 -0700 | [diff] [blame] | 197 | } |
Henrik Rydberg | 84d2d7f | 2008-10-18 20:27:38 -0700 | [diff] [blame] | 198 | return -EIO; |
| 199 | } |
| 200 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 201 | static int send_argument(const char *key) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 202 | { |
| 203 | int i; |
| 204 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 205 | for (i = 0; i < 4; i++) { |
| 206 | outb(key[i], APPLESMC_DATA_PORT); |
| 207 | if (__wait_status(0x04)) |
| 208 | return -EIO; |
| 209 | } |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) |
| 214 | { |
| 215 | int i; |
| 216 | |
| 217 | if (send_command(cmd) || send_argument(key)) { |
| 218 | pr_warn("%s: read arg fail\n", key); |
| 219 | return -EIO; |
| 220 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 221 | |
| 222 | outb(len, APPLESMC_DATA_PORT); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 223 | |
| 224 | for (i = 0; i < len; i++) { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 225 | if (__wait_status(0x05)) { |
| 226 | pr_warn("%s: read data fail\n", key); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 227 | return -EIO; |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 228 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 229 | buffer[i] = inb(APPLESMC_DATA_PORT); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 230 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 235 | static int write_smc(u8 cmd, const char *key, const u8 *buffer, u8 len) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 236 | { |
| 237 | int i; |
| 238 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 239 | if (send_command(cmd) || send_argument(key)) { |
| 240 | pr_warn("%s: write arg fail\n", key); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 241 | return -EIO; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | outb(len, APPLESMC_DATA_PORT); |
| 245 | |
| 246 | for (i = 0; i < len; i++) { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 247 | if (__wait_status(0x04)) { |
| 248 | pr_warn("%s: write data fail\n", key); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 249 | return -EIO; |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 250 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 251 | outb(buffer[i], APPLESMC_DATA_PORT); |
| 252 | } |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 257 | static int read_register_count(unsigned int *count) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 258 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 259 | __be32 be; |
| 260 | int ret; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 261 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 262 | ret = read_smc(APPLESMC_READ_CMD, KEY_COUNT_KEY, (u8 *)&be, 4); |
| 263 | if (ret) |
| 264 | return ret; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 265 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 266 | *count = be32_to_cpu(be); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 267 | return 0; |
| 268 | } |
| 269 | |
| 270 | /* |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 271 | * Serialized I/O |
| 272 | * |
| 273 | * Returns zero on success or a negative error on failure. |
| 274 | * All functions below are concurrency safe - callers should NOT hold lock. |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 275 | */ |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 276 | |
| 277 | static int applesmc_read_entry(const struct applesmc_entry *entry, |
| 278 | u8 *buf, u8 len) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 279 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 280 | int ret; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 281 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 282 | if (entry->len != len) |
| 283 | return -EINVAL; |
| 284 | mutex_lock(&smcreg.mutex); |
| 285 | ret = read_smc(APPLESMC_READ_CMD, entry->key, buf, len); |
| 286 | mutex_unlock(&smcreg.mutex); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 287 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 288 | return ret; |
| 289 | } |
| 290 | |
| 291 | static int applesmc_write_entry(const struct applesmc_entry *entry, |
| 292 | const u8 *buf, u8 len) |
| 293 | { |
| 294 | int ret; |
| 295 | |
| 296 | if (entry->len != len) |
| 297 | return -EINVAL; |
| 298 | mutex_lock(&smcreg.mutex); |
| 299 | ret = write_smc(APPLESMC_WRITE_CMD, entry->key, buf, len); |
| 300 | mutex_unlock(&smcreg.mutex); |
| 301 | return ret; |
| 302 | } |
| 303 | |
| 304 | static const struct applesmc_entry *applesmc_get_entry_by_index(int index) |
| 305 | { |
| 306 | struct applesmc_entry *cache = &smcreg.cache[index]; |
| 307 | u8 key[4], info[6]; |
| 308 | __be32 be; |
| 309 | int ret = 0; |
| 310 | |
| 311 | if (cache->valid) |
| 312 | return cache; |
| 313 | |
| 314 | mutex_lock(&smcreg.mutex); |
| 315 | |
| 316 | if (cache->valid) |
| 317 | goto out; |
| 318 | be = cpu_to_be32(index); |
| 319 | ret = read_smc(APPLESMC_GET_KEY_BY_INDEX_CMD, (u8 *)&be, key, 4); |
| 320 | if (ret) |
| 321 | goto out; |
| 322 | ret = read_smc(APPLESMC_GET_KEY_TYPE_CMD, key, info, 6); |
| 323 | if (ret) |
| 324 | goto out; |
| 325 | |
| 326 | memcpy(cache->key, key, 4); |
| 327 | cache->len = info[0]; |
| 328 | memcpy(cache->type, &info[1], 4); |
| 329 | cache->flags = info[5]; |
| 330 | cache->valid = 1; |
| 331 | |
| 332 | out: |
| 333 | mutex_unlock(&smcreg.mutex); |
| 334 | if (ret) |
| 335 | return ERR_PTR(ret); |
| 336 | return cache; |
| 337 | } |
| 338 | |
| 339 | static int applesmc_get_lower_bound(unsigned int *lo, const char *key) |
| 340 | { |
| 341 | int begin = 0, end = smcreg.key_count; |
| 342 | const struct applesmc_entry *entry; |
| 343 | |
| 344 | while (begin != end) { |
| 345 | int middle = begin + (end - begin) / 2; |
| 346 | entry = applesmc_get_entry_by_index(middle); |
| 347 | if (IS_ERR(entry)) |
| 348 | return PTR_ERR(entry); |
| 349 | if (strcmp(entry->key, key) < 0) |
| 350 | begin = middle + 1; |
| 351 | else |
| 352 | end = middle; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 353 | } |
| 354 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 355 | *lo = begin; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 356 | return 0; |
| 357 | } |
| 358 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 359 | static int applesmc_get_upper_bound(unsigned int *hi, const char *key) |
| 360 | { |
| 361 | int begin = 0, end = smcreg.key_count; |
| 362 | const struct applesmc_entry *entry; |
| 363 | |
| 364 | while (begin != end) { |
| 365 | int middle = begin + (end - begin) / 2; |
| 366 | entry = applesmc_get_entry_by_index(middle); |
| 367 | if (IS_ERR(entry)) |
| 368 | return PTR_ERR(entry); |
| 369 | if (strcmp(key, entry->key) < 0) |
| 370 | end = middle; |
| 371 | else |
| 372 | begin = middle + 1; |
| 373 | } |
| 374 | |
| 375 | *hi = begin; |
| 376 | return 0; |
| 377 | } |
| 378 | |
| 379 | static const struct applesmc_entry *applesmc_get_entry_by_key(const char *key) |
| 380 | { |
| 381 | int begin, end; |
| 382 | int ret; |
| 383 | |
| 384 | ret = applesmc_get_lower_bound(&begin, key); |
| 385 | if (ret) |
| 386 | return ERR_PTR(ret); |
| 387 | ret = applesmc_get_upper_bound(&end, key); |
| 388 | if (ret) |
| 389 | return ERR_PTR(ret); |
| 390 | if (end - begin != 1) |
| 391 | return ERR_PTR(-EINVAL); |
| 392 | |
| 393 | return applesmc_get_entry_by_index(begin); |
| 394 | } |
| 395 | |
| 396 | static int applesmc_read_key(const char *key, u8 *buffer, u8 len) |
| 397 | { |
| 398 | const struct applesmc_entry *entry; |
| 399 | |
| 400 | entry = applesmc_get_entry_by_key(key); |
| 401 | if (IS_ERR(entry)) |
| 402 | return PTR_ERR(entry); |
| 403 | |
| 404 | return applesmc_read_entry(entry, buffer, len); |
| 405 | } |
| 406 | |
| 407 | static int applesmc_write_key(const char *key, const u8 *buffer, u8 len) |
| 408 | { |
| 409 | const struct applesmc_entry *entry; |
| 410 | |
| 411 | entry = applesmc_get_entry_by_key(key); |
| 412 | if (IS_ERR(entry)) |
| 413 | return PTR_ERR(entry); |
| 414 | |
| 415 | return applesmc_write_entry(entry, buffer, len); |
| 416 | } |
| 417 | |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 418 | static int applesmc_has_key(const char *key, bool *value) |
| 419 | { |
| 420 | const struct applesmc_entry *entry; |
| 421 | |
| 422 | entry = applesmc_get_entry_by_key(key); |
| 423 | if (IS_ERR(entry) && PTR_ERR(entry) != -EINVAL) |
| 424 | return PTR_ERR(entry); |
| 425 | |
| 426 | *value = !IS_ERR(entry); |
| 427 | return 0; |
| 428 | } |
| 429 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 430 | /* |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 431 | * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 432 | */ |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 433 | static int applesmc_read_motion_sensor(int index, s16 *value) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 434 | { |
| 435 | u8 buffer[2]; |
| 436 | int ret; |
| 437 | |
| 438 | switch (index) { |
| 439 | case SENSOR_X: |
| 440 | ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2); |
| 441 | break; |
| 442 | case SENSOR_Y: |
| 443 | ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2); |
| 444 | break; |
| 445 | case SENSOR_Z: |
| 446 | ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2); |
| 447 | break; |
| 448 | default: |
| 449 | ret = -EINVAL; |
| 450 | } |
| 451 | |
| 452 | *value = ((s16)buffer[0] << 8) | buffer[1]; |
| 453 | |
| 454 | return ret; |
| 455 | } |
| 456 | |
| 457 | /* |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 458 | * applesmc_device_init - initialize the accelerometer. Can sleep. |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 459 | */ |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 460 | static void applesmc_device_init(void) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 461 | { |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 462 | int total; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 463 | u8 buffer[2]; |
| 464 | |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 465 | if (!smcreg.has_accelerometer) |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 466 | return; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 467 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 468 | for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) { |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 469 | if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) && |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 470 | (buffer[0] != 0x00 || buffer[1] != 0x00)) |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 471 | return; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 472 | buffer[0] = 0xe0; |
| 473 | buffer[1] = 0x00; |
| 474 | applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2); |
| 475 | msleep(INIT_WAIT_MSECS); |
| 476 | } |
| 477 | |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 478 | pr_warn("failed to init the device\n"); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | /* |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 482 | * applesmc_init_smcreg_try - Try to initialize register cache. Idempotent. |
| 483 | */ |
| 484 | static int applesmc_init_smcreg_try(void) |
| 485 | { |
| 486 | struct applesmc_registers *s = &smcreg; |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 487 | bool left_light_sensor, right_light_sensor; |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 488 | u8 tmp[1]; |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 489 | int ret; |
| 490 | |
| 491 | if (s->init_complete) |
| 492 | return 0; |
| 493 | |
| 494 | ret = read_register_count(&s->key_count); |
| 495 | if (ret) |
| 496 | return ret; |
| 497 | |
| 498 | if (!s->cache) |
| 499 | s->cache = kcalloc(s->key_count, sizeof(*s->cache), GFP_KERNEL); |
| 500 | if (!s->cache) |
| 501 | return -ENOMEM; |
| 502 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 503 | ret = applesmc_read_key(FANS_COUNT, tmp, 1); |
| 504 | if (ret) |
| 505 | return ret; |
| 506 | s->fan_count = tmp[0]; |
| 507 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 508 | ret = applesmc_get_lower_bound(&s->temp_begin, "T"); |
| 509 | if (ret) |
| 510 | return ret; |
| 511 | ret = applesmc_get_lower_bound(&s->temp_end, "U"); |
| 512 | if (ret) |
| 513 | return ret; |
| 514 | s->temp_count = s->temp_end - s->temp_begin; |
| 515 | |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 516 | ret = applesmc_has_key(LIGHT_SENSOR_LEFT_KEY, &left_light_sensor); |
| 517 | if (ret) |
| 518 | return ret; |
| 519 | ret = applesmc_has_key(LIGHT_SENSOR_RIGHT_KEY, &right_light_sensor); |
| 520 | if (ret) |
| 521 | return ret; |
| 522 | ret = applesmc_has_key(MOTION_SENSOR_KEY, &s->has_accelerometer); |
| 523 | if (ret) |
| 524 | return ret; |
| 525 | ret = applesmc_has_key(BACKLIGHT_KEY, &s->has_key_backlight); |
| 526 | if (ret) |
| 527 | return ret; |
| 528 | |
| 529 | s->num_light_sensors = left_light_sensor + right_light_sensor; |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 530 | s->init_complete = true; |
| 531 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 532 | pr_info("key=%d fan=%d temp=%d acc=%d lux=%d kbd=%d\n", |
| 533 | s->key_count, s->fan_count, s->temp_count, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 534 | s->has_accelerometer, |
| 535 | s->num_light_sensors, |
| 536 | s->has_key_backlight); |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 537 | |
| 538 | return 0; |
| 539 | } |
| 540 | |
| 541 | /* |
| 542 | * applesmc_init_smcreg - Initialize register cache. |
| 543 | * |
| 544 | * Retries until initialization is successful, or the operation times out. |
| 545 | * |
| 546 | */ |
| 547 | static int applesmc_init_smcreg(void) |
| 548 | { |
| 549 | int ms, ret; |
| 550 | |
| 551 | for (ms = 0; ms < INIT_TIMEOUT_MSECS; ms += INIT_WAIT_MSECS) { |
| 552 | ret = applesmc_init_smcreg_try(); |
| 553 | if (!ret) { |
| 554 | if (ms) |
| 555 | pr_info("init_smcreg() took %d ms\n", ms); |
| 556 | return 0; |
| 557 | } |
| 558 | msleep(INIT_WAIT_MSECS); |
| 559 | } |
| 560 | |
| 561 | kfree(smcreg.cache); |
| 562 | smcreg.cache = NULL; |
| 563 | |
| 564 | return ret; |
| 565 | } |
| 566 | |
| 567 | static void applesmc_destroy_smcreg(void) |
| 568 | { |
| 569 | kfree(smcreg.cache); |
| 570 | smcreg.cache = NULL; |
| 571 | smcreg.init_complete = false; |
| 572 | } |
| 573 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 574 | /* Device model stuff */ |
| 575 | static int applesmc_probe(struct platform_device *dev) |
| 576 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 577 | int ret; |
| 578 | |
| 579 | ret = applesmc_init_smcreg(); |
| 580 | if (ret) |
| 581 | return ret; |
| 582 | |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 583 | applesmc_device_init(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 584 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 585 | return 0; |
| 586 | } |
| 587 | |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 588 | /* Synchronize device with memorized backlight state */ |
| 589 | static int applesmc_pm_resume(struct device *dev) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 590 | { |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 591 | if (smcreg.has_key_backlight) |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 592 | applesmc_write_key(BACKLIGHT_KEY, backlight_state, 2); |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 593 | return 0; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 594 | } |
| 595 | |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 596 | /* Reinitialize device on resume from hibernation */ |
| 597 | static int applesmc_pm_restore(struct device *dev) |
| 598 | { |
Henrik Rydberg | 2344cd0 | 2010-11-09 15:15:02 +0000 | [diff] [blame] | 599 | applesmc_device_init(); |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 600 | return applesmc_pm_resume(dev); |
| 601 | } |
| 602 | |
Alexey Dobriyan | 4714521 | 2009-12-14 18:00:08 -0800 | [diff] [blame] | 603 | static const struct dev_pm_ops applesmc_pm_ops = { |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 604 | .resume = applesmc_pm_resume, |
| 605 | .restore = applesmc_pm_restore, |
| 606 | }; |
| 607 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 608 | static struct platform_driver applesmc_driver = { |
| 609 | .probe = applesmc_probe, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 610 | .driver = { |
| 611 | .name = "applesmc", |
| 612 | .owner = THIS_MODULE, |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 613 | .pm = &applesmc_pm_ops, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 614 | }, |
| 615 | }; |
| 616 | |
| 617 | /* |
| 618 | * applesmc_calibrate - Set our "resting" values. Callers must |
| 619 | * hold applesmc_lock. |
| 620 | */ |
| 621 | static void applesmc_calibrate(void) |
| 622 | { |
| 623 | applesmc_read_motion_sensor(SENSOR_X, &rest_x); |
| 624 | applesmc_read_motion_sensor(SENSOR_Y, &rest_y); |
| 625 | rest_x = -rest_x; |
| 626 | } |
| 627 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 628 | static void applesmc_idev_poll(struct input_polled_dev *dev) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 629 | { |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 630 | struct input_dev *idev = dev->input; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 631 | s16 x, y; |
| 632 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 633 | if (applesmc_read_motion_sensor(SENSOR_X, &x)) |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 634 | return; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 635 | if (applesmc_read_motion_sensor(SENSOR_Y, &y)) |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 636 | return; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 637 | |
| 638 | x = -x; |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 639 | input_report_abs(idev, ABS_X, x - rest_x); |
| 640 | input_report_abs(idev, ABS_Y, y - rest_y); |
| 641 | input_sync(idev); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 642 | } |
| 643 | |
| 644 | /* Sysfs Files */ |
| 645 | |
Nicolas Boichat | fa74419 | 2007-05-23 13:58:13 -0700 | [diff] [blame] | 646 | static ssize_t applesmc_name_show(struct device *dev, |
| 647 | struct device_attribute *attr, char *buf) |
| 648 | { |
| 649 | return snprintf(buf, PAGE_SIZE, "applesmc\n"); |
| 650 | } |
| 651 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 652 | static ssize_t applesmc_position_show(struct device *dev, |
| 653 | struct device_attribute *attr, char *buf) |
| 654 | { |
| 655 | int ret; |
| 656 | s16 x, y, z; |
| 657 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 658 | ret = applesmc_read_motion_sensor(SENSOR_X, &x); |
| 659 | if (ret) |
| 660 | goto out; |
| 661 | ret = applesmc_read_motion_sensor(SENSOR_Y, &y); |
| 662 | if (ret) |
| 663 | goto out; |
| 664 | ret = applesmc_read_motion_sensor(SENSOR_Z, &z); |
| 665 | if (ret) |
| 666 | goto out; |
| 667 | |
| 668 | out: |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 669 | if (ret) |
| 670 | return ret; |
| 671 | else |
| 672 | return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z); |
| 673 | } |
| 674 | |
| 675 | static ssize_t applesmc_light_show(struct device *dev, |
| 676 | struct device_attribute *attr, char *sysfsbuf) |
| 677 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 678 | const struct applesmc_entry *entry; |
Henrik Rydberg | 8bd1a12 | 2008-10-18 20:27:39 -0700 | [diff] [blame] | 679 | static int data_length; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 680 | int ret; |
| 681 | u8 left = 0, right = 0; |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 682 | u8 buffer[10]; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 683 | |
Henrik Rydberg | 8bd1a12 | 2008-10-18 20:27:39 -0700 | [diff] [blame] | 684 | if (!data_length) { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 685 | entry = applesmc_get_entry_by_key(LIGHT_SENSOR_LEFT_KEY); |
| 686 | if (IS_ERR(entry)) |
| 687 | return PTR_ERR(entry); |
| 688 | if (entry->len > 10) |
| 689 | return -ENXIO; |
| 690 | data_length = entry->len; |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 691 | pr_info("light sensor data length set to %d\n", data_length); |
Henrik Rydberg | 8bd1a12 | 2008-10-18 20:27:39 -0700 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length); |
Alex Murray | c3d6362 | 2009-01-15 13:51:08 -0800 | [diff] [blame] | 695 | /* newer macbooks report a single 10-bit bigendian value */ |
| 696 | if (data_length == 10) { |
| 697 | left = be16_to_cpu(*(__be16 *)(buffer + 6)) >> 2; |
| 698 | goto out; |
| 699 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 700 | left = buffer[2]; |
| 701 | if (ret) |
| 702 | goto out; |
Henrik Rydberg | 8bd1a12 | 2008-10-18 20:27:39 -0700 | [diff] [blame] | 703 | ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 704 | right = buffer[2]; |
| 705 | |
| 706 | out: |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 707 | if (ret) |
| 708 | return ret; |
| 709 | else |
| 710 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right); |
| 711 | } |
| 712 | |
Alex Murray | fa5575c | 2010-05-27 19:58:54 +0200 | [diff] [blame] | 713 | /* Displays sensor key as label */ |
| 714 | static ssize_t applesmc_show_sensor_label(struct device *dev, |
| 715 | struct device_attribute *devattr, char *sysfsbuf) |
| 716 | { |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 717 | int index = smcreg.temp_begin + to_index(devattr); |
| 718 | const struct applesmc_entry *entry; |
Alex Murray | fa5575c | 2010-05-27 19:58:54 +0200 | [diff] [blame] | 719 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 720 | entry = applesmc_get_entry_by_index(index); |
| 721 | if (IS_ERR(entry)) |
| 722 | return PTR_ERR(entry); |
| 723 | |
| 724 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", entry->key); |
Alex Murray | fa5575c | 2010-05-27 19:58:54 +0200 | [diff] [blame] | 725 | } |
| 726 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 727 | /* Displays degree Celsius * 1000 */ |
| 728 | static ssize_t applesmc_show_temperature(struct device *dev, |
| 729 | struct device_attribute *devattr, char *sysfsbuf) |
| 730 | { |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 731 | int index = smcreg.temp_begin + to_index(devattr); |
| 732 | const struct applesmc_entry *entry; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 733 | int ret; |
| 734 | u8 buffer[2]; |
| 735 | unsigned int temp; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 736 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 737 | entry = applesmc_get_entry_by_index(index); |
| 738 | if (IS_ERR(entry)) |
| 739 | return PTR_ERR(entry); |
Henrik Rydberg | dcdea26 | 2010-11-09 15:15:06 +0000 | [diff] [blame] | 740 | if (entry->len > 2) |
| 741 | return -EINVAL; |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 742 | |
Henrik Rydberg | dcdea26 | 2010-11-09 15:15:06 +0000 | [diff] [blame] | 743 | ret = applesmc_read_entry(entry, buffer, entry->len); |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 744 | if (ret) |
| 745 | return ret; |
| 746 | |
Henrik Rydberg | dcdea26 | 2010-11-09 15:15:06 +0000 | [diff] [blame] | 747 | if (entry->len == 2) { |
| 748 | temp = buffer[0] * 1000; |
| 749 | temp += (buffer[1] >> 6) * 250; |
| 750 | } else { |
| 751 | temp = buffer[0] * 4000; |
| 752 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 753 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 754 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 755 | } |
| 756 | |
| 757 | static ssize_t applesmc_show_fan_speed(struct device *dev, |
| 758 | struct device_attribute *attr, char *sysfsbuf) |
| 759 | { |
| 760 | int ret; |
| 761 | unsigned int speed = 0; |
| 762 | char newkey[5]; |
| 763 | u8 buffer[2]; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 764 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 765 | sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr)); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 766 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 767 | ret = applesmc_read_key(newkey, buffer, 2); |
| 768 | speed = ((buffer[0] << 8 | buffer[1]) >> 2); |
| 769 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 770 | if (ret) |
| 771 | return ret; |
| 772 | else |
| 773 | return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed); |
| 774 | } |
| 775 | |
| 776 | static ssize_t applesmc_store_fan_speed(struct device *dev, |
| 777 | struct device_attribute *attr, |
| 778 | const char *sysfsbuf, size_t count) |
| 779 | { |
| 780 | int ret; |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 781 | unsigned long speed; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 782 | char newkey[5]; |
| 783 | u8 buffer[2]; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 784 | |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 785 | if (strict_strtoul(sysfsbuf, 10, &speed) < 0 || speed >= 0x4000) |
| 786 | return -EINVAL; /* Bigger than a 14-bit value */ |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 787 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 788 | sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr)); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 789 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 790 | buffer[0] = (speed >> 6) & 0xff; |
| 791 | buffer[1] = (speed << 2) & 0xff; |
| 792 | ret = applesmc_write_key(newkey, buffer, 2); |
| 793 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 794 | if (ret) |
| 795 | return ret; |
| 796 | else |
| 797 | return count; |
| 798 | } |
| 799 | |
| 800 | static ssize_t applesmc_show_fan_manual(struct device *dev, |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 801 | struct device_attribute *attr, char *sysfsbuf) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 802 | { |
| 803 | int ret; |
| 804 | u16 manual = 0; |
| 805 | u8 buffer[2]; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 806 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 807 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 808 | manual = ((buffer[0] << 8 | buffer[1]) >> to_index(attr)) & 0x01; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 809 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 810 | if (ret) |
| 811 | return ret; |
| 812 | else |
| 813 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual); |
| 814 | } |
| 815 | |
| 816 | static ssize_t applesmc_store_fan_manual(struct device *dev, |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 817 | struct device_attribute *attr, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 818 | const char *sysfsbuf, size_t count) |
| 819 | { |
| 820 | int ret; |
| 821 | u8 buffer[2]; |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 822 | unsigned long input; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 823 | u16 val; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 824 | |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 825 | if (strict_strtoul(sysfsbuf, 10, &input) < 0) |
| 826 | return -EINVAL; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 827 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 828 | ret = applesmc_read_key(FANS_MANUAL, buffer, 2); |
| 829 | val = (buffer[0] << 8 | buffer[1]); |
| 830 | if (ret) |
| 831 | goto out; |
| 832 | |
| 833 | if (input) |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 834 | val = val | (0x01 << to_index(attr)); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 835 | else |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 836 | val = val & ~(0x01 << to_index(attr)); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 837 | |
| 838 | buffer[0] = (val >> 8) & 0xFF; |
| 839 | buffer[1] = val & 0xFF; |
| 840 | |
| 841 | ret = applesmc_write_key(FANS_MANUAL, buffer, 2); |
| 842 | |
| 843 | out: |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 844 | if (ret) |
| 845 | return ret; |
| 846 | else |
| 847 | return count; |
| 848 | } |
| 849 | |
| 850 | static ssize_t applesmc_show_fan_position(struct device *dev, |
| 851 | struct device_attribute *attr, char *sysfsbuf) |
| 852 | { |
| 853 | int ret; |
| 854 | char newkey[5]; |
| 855 | u8 buffer[17]; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 856 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 857 | sprintf(newkey, FAN_ID_FMT, to_index(attr)); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 858 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 859 | ret = applesmc_read_key(newkey, buffer, 16); |
| 860 | buffer[16] = 0; |
| 861 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 862 | if (ret) |
| 863 | return ret; |
| 864 | else |
| 865 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4); |
| 866 | } |
| 867 | |
| 868 | static ssize_t applesmc_calibrate_show(struct device *dev, |
| 869 | struct device_attribute *attr, char *sysfsbuf) |
| 870 | { |
| 871 | return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y); |
| 872 | } |
| 873 | |
| 874 | static ssize_t applesmc_calibrate_store(struct device *dev, |
| 875 | struct device_attribute *attr, const char *sysfsbuf, size_t count) |
| 876 | { |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 877 | applesmc_calibrate(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 878 | |
| 879 | return count; |
| 880 | } |
| 881 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 882 | static void applesmc_backlight_set(struct work_struct *work) |
| 883 | { |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 884 | applesmc_write_key(BACKLIGHT_KEY, backlight_state, 2); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 885 | } |
| 886 | static DECLARE_WORK(backlight_work, &applesmc_backlight_set); |
| 887 | |
| 888 | static void applesmc_brightness_set(struct led_classdev *led_cdev, |
| 889 | enum led_brightness value) |
| 890 | { |
| 891 | int ret; |
| 892 | |
Henrik Rydberg | a976f15 | 2009-09-21 17:04:50 -0700 | [diff] [blame] | 893 | backlight_state[0] = value; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 894 | ret = queue_work(applesmc_led_wq, &backlight_work); |
| 895 | |
| 896 | if (debug && (!ret)) |
| 897 | printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); |
| 898 | } |
| 899 | |
| 900 | static ssize_t applesmc_key_count_show(struct device *dev, |
| 901 | struct device_attribute *attr, char *sysfsbuf) |
| 902 | { |
| 903 | int ret; |
| 904 | u8 buffer[4]; |
| 905 | u32 count; |
| 906 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 907 | ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4); |
| 908 | count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) + |
| 909 | ((u32)buffer[2]<<8) + buffer[3]; |
| 910 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 911 | if (ret) |
| 912 | return ret; |
| 913 | else |
| 914 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count); |
| 915 | } |
| 916 | |
| 917 | static ssize_t applesmc_key_at_index_read_show(struct device *dev, |
| 918 | struct device_attribute *attr, char *sysfsbuf) |
| 919 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 920 | const struct applesmc_entry *entry; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 921 | int ret; |
| 922 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 923 | entry = applesmc_get_entry_by_index(key_at_index); |
| 924 | if (IS_ERR(entry)) |
| 925 | return PTR_ERR(entry); |
| 926 | ret = applesmc_read_entry(entry, sysfsbuf, entry->len); |
| 927 | if (ret) |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 928 | return ret; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 929 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 930 | return entry->len; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 931 | } |
| 932 | |
| 933 | static ssize_t applesmc_key_at_index_data_length_show(struct device *dev, |
| 934 | struct device_attribute *attr, char *sysfsbuf) |
| 935 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 936 | const struct applesmc_entry *entry; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 937 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 938 | entry = applesmc_get_entry_by_index(key_at_index); |
| 939 | if (IS_ERR(entry)) |
| 940 | return PTR_ERR(entry); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 941 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 942 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", entry->len); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 943 | } |
| 944 | |
| 945 | static ssize_t applesmc_key_at_index_type_show(struct device *dev, |
| 946 | struct device_attribute *attr, char *sysfsbuf) |
| 947 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 948 | const struct applesmc_entry *entry; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 949 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 950 | entry = applesmc_get_entry_by_index(key_at_index); |
| 951 | if (IS_ERR(entry)) |
| 952 | return PTR_ERR(entry); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 953 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 954 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", entry->type); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 955 | } |
| 956 | |
| 957 | static ssize_t applesmc_key_at_index_name_show(struct device *dev, |
| 958 | struct device_attribute *attr, char *sysfsbuf) |
| 959 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 960 | const struct applesmc_entry *entry; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 961 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 962 | entry = applesmc_get_entry_by_index(key_at_index); |
| 963 | if (IS_ERR(entry)) |
| 964 | return PTR_ERR(entry); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 965 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 966 | return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", entry->key); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 967 | } |
| 968 | |
| 969 | static ssize_t applesmc_key_at_index_show(struct device *dev, |
| 970 | struct device_attribute *attr, char *sysfsbuf) |
| 971 | { |
| 972 | return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index); |
| 973 | } |
| 974 | |
| 975 | static ssize_t applesmc_key_at_index_store(struct device *dev, |
| 976 | struct device_attribute *attr, const char *sysfsbuf, size_t count) |
| 977 | { |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 978 | unsigned long newkey; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 979 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 980 | if (strict_strtoul(sysfsbuf, 10, &newkey) < 0 |
| 981 | || newkey >= smcreg.key_count) |
| 982 | return -EINVAL; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 983 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 984 | key_at_index = newkey; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 985 | return count; |
| 986 | } |
| 987 | |
| 988 | static struct led_classdev applesmc_backlight = { |
Richard Purdie | 6c152be | 2007-10-31 15:00:07 +0100 | [diff] [blame] | 989 | .name = "smc::kbd_backlight", |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 990 | .default_trigger = "nand-disk", |
| 991 | .brightness_set = applesmc_brightness_set, |
| 992 | }; |
| 993 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 994 | static struct applesmc_node_group info_group[] = { |
| 995 | { "name", applesmc_name_show }, |
| 996 | { "key_count", applesmc_key_count_show }, |
| 997 | { "key_at_index", applesmc_key_at_index_show, applesmc_key_at_index_store }, |
| 998 | { "key_at_index_name", applesmc_key_at_index_name_show }, |
| 999 | { "key_at_index_type", applesmc_key_at_index_type_show }, |
| 1000 | { "key_at_index_data_length", applesmc_key_at_index_data_length_show }, |
| 1001 | { "key_at_index_data", applesmc_key_at_index_read_show }, |
| 1002 | { } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1003 | }; |
| 1004 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1005 | static struct applesmc_node_group accelerometer_group[] = { |
| 1006 | { "position", applesmc_position_show }, |
| 1007 | { "calibrate", applesmc_calibrate_show, applesmc_calibrate_store }, |
| 1008 | { } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1009 | }; |
| 1010 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1011 | static struct applesmc_node_group light_sensor_group[] = { |
| 1012 | { "light", applesmc_light_show }, |
| 1013 | { } |
| 1014 | }; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1015 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 1016 | static struct applesmc_node_group fan_group[] = { |
| 1017 | { "fan%d_label", applesmc_show_fan_position }, |
| 1018 | { "fan%d_input", applesmc_show_fan_speed, NULL, 0 }, |
| 1019 | { "fan%d_min", applesmc_show_fan_speed, applesmc_store_fan_speed, 1 }, |
| 1020 | { "fan%d_max", applesmc_show_fan_speed, NULL, 2 }, |
| 1021 | { "fan%d_safe", applesmc_show_fan_speed, NULL, 3 }, |
| 1022 | { "fan%d_output", applesmc_show_fan_speed, applesmc_store_fan_speed, 4 }, |
| 1023 | { "fan%d_manual", applesmc_show_fan_manual, applesmc_store_fan_manual }, |
| 1024 | { } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1025 | }; |
| 1026 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1027 | static struct applesmc_node_group temp_group[] = { |
| 1028 | { "temp%d_label", applesmc_show_sensor_label }, |
| 1029 | { "temp%d_input", applesmc_show_temperature }, |
| 1030 | { } |
Alex Murray | fa5575c | 2010-05-27 19:58:54 +0200 | [diff] [blame] | 1031 | }; |
| 1032 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1033 | /* Module stuff */ |
| 1034 | |
| 1035 | /* |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1036 | * applesmc_destroy_nodes - remove files and free associated memory |
| 1037 | */ |
| 1038 | static void applesmc_destroy_nodes(struct applesmc_node_group *groups) |
| 1039 | { |
| 1040 | struct applesmc_node_group *grp; |
| 1041 | struct applesmc_dev_attr *node; |
| 1042 | |
| 1043 | for (grp = groups; grp->nodes; grp++) { |
| 1044 | for (node = grp->nodes; node->sda.dev_attr.attr.name; node++) |
| 1045 | sysfs_remove_file(&pdev->dev.kobj, |
| 1046 | &node->sda.dev_attr.attr); |
| 1047 | kfree(grp->nodes); |
| 1048 | grp->nodes = NULL; |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | /* |
| 1053 | * applesmc_create_nodes - create a two-dimensional group of sysfs files |
| 1054 | */ |
| 1055 | static int applesmc_create_nodes(struct applesmc_node_group *groups, int num) |
| 1056 | { |
| 1057 | struct applesmc_node_group *grp; |
| 1058 | struct applesmc_dev_attr *node; |
| 1059 | struct attribute *attr; |
| 1060 | int ret, i; |
| 1061 | |
| 1062 | for (grp = groups; grp->format; grp++) { |
| 1063 | grp->nodes = kcalloc(num + 1, sizeof(*node), GFP_KERNEL); |
| 1064 | if (!grp->nodes) { |
| 1065 | ret = -ENOMEM; |
| 1066 | goto out; |
| 1067 | } |
| 1068 | for (i = 0; i < num; i++) { |
| 1069 | node = &grp->nodes[i]; |
| 1070 | sprintf(node->name, grp->format, i + 1); |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 1071 | node->sda.index = (grp->option << 16) | (i & 0xffff); |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1072 | node->sda.dev_attr.show = grp->show; |
| 1073 | node->sda.dev_attr.store = grp->store; |
| 1074 | attr = &node->sda.dev_attr.attr; |
| 1075 | attr->name = node->name; |
| 1076 | attr->mode = S_IRUGO | (grp->store ? S_IWUSR : 0); |
| 1077 | ret = sysfs_create_file(&pdev->dev.kobj, attr); |
| 1078 | if (ret) { |
| 1079 | attr->name = NULL; |
| 1080 | goto out; |
| 1081 | } |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | return 0; |
| 1086 | out: |
| 1087 | applesmc_destroy_nodes(groups); |
| 1088 | return ret; |
| 1089 | } |
| 1090 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1091 | /* Create accelerometer ressources */ |
| 1092 | static int applesmc_create_accelerometer(void) |
| 1093 | { |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1094 | struct input_dev *idev; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1095 | int ret; |
| 1096 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1097 | if (!smcreg.has_accelerometer) |
| 1098 | return 0; |
| 1099 | |
| 1100 | ret = applesmc_create_nodes(accelerometer_group, 1); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1101 | if (ret) |
| 1102 | goto out; |
| 1103 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1104 | applesmc_idev = input_allocate_polled_device(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1105 | if (!applesmc_idev) { |
| 1106 | ret = -ENOMEM; |
| 1107 | goto out_sysfs; |
| 1108 | } |
| 1109 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1110 | applesmc_idev->poll = applesmc_idev_poll; |
| 1111 | applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL; |
| 1112 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1113 | /* initial calibrate for the input device */ |
| 1114 | applesmc_calibrate(); |
| 1115 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1116 | /* initialize the input device */ |
| 1117 | idev = applesmc_idev->input; |
| 1118 | idev->name = "applesmc"; |
| 1119 | idev->id.bustype = BUS_HOST; |
| 1120 | idev->dev.parent = &pdev->dev; |
Jiri Slaby | 7b19ada | 2007-10-18 23:40:32 -0700 | [diff] [blame] | 1121 | idev->evbit[0] = BIT_MASK(EV_ABS); |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1122 | input_set_abs_params(idev, ABS_X, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1123 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1124 | input_set_abs_params(idev, ABS_Y, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1125 | -256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT); |
| 1126 | |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1127 | ret = input_register_polled_device(applesmc_idev); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1128 | if (ret) |
| 1129 | goto out_idev; |
| 1130 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1131 | return 0; |
| 1132 | |
| 1133 | out_idev: |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1134 | input_free_polled_device(applesmc_idev); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1135 | |
| 1136 | out_sysfs: |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1137 | applesmc_destroy_nodes(accelerometer_group); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1138 | |
| 1139 | out: |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 1140 | pr_warn("driver init failed (ret=%d)!\n", ret); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1141 | return ret; |
| 1142 | } |
| 1143 | |
| 1144 | /* Release all ressources used by the accelerometer */ |
| 1145 | static void applesmc_release_accelerometer(void) |
| 1146 | { |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1147 | if (!smcreg.has_accelerometer) |
| 1148 | return; |
Dmitry Torokhov | d5cf2b9 | 2007-09-26 00:01:35 -0400 | [diff] [blame] | 1149 | input_unregister_polled_device(applesmc_idev); |
| 1150 | input_free_polled_device(applesmc_idev); |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1151 | applesmc_destroy_nodes(accelerometer_group); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1152 | } |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1153 | |
| 1154 | static int applesmc_create_light_sensor(void) |
| 1155 | { |
| 1156 | if (!smcreg.num_light_sensors) |
| 1157 | return 0; |
| 1158 | return applesmc_create_nodes(light_sensor_group, 1); |
| 1159 | } |
| 1160 | |
| 1161 | static void applesmc_release_light_sensor(void) |
| 1162 | { |
| 1163 | if (!smcreg.num_light_sensors) |
| 1164 | return; |
| 1165 | applesmc_destroy_nodes(light_sensor_group); |
| 1166 | } |
| 1167 | |
| 1168 | static int applesmc_create_key_backlight(void) |
| 1169 | { |
| 1170 | if (!smcreg.has_key_backlight) |
| 1171 | return 0; |
| 1172 | applesmc_led_wq = create_singlethread_workqueue("applesmc-led"); |
| 1173 | if (!applesmc_led_wq) |
| 1174 | return -ENOMEM; |
| 1175 | return led_classdev_register(&pdev->dev, &applesmc_backlight); |
| 1176 | } |
| 1177 | |
| 1178 | static void applesmc_release_key_backlight(void) |
| 1179 | { |
| 1180 | if (!smcreg.has_key_backlight) |
| 1181 | return; |
| 1182 | led_classdev_unregister(&applesmc_backlight); |
| 1183 | destroy_workqueue(applesmc_led_wq); |
| 1184 | } |
| 1185 | |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1186 | static int applesmc_dmi_match(const struct dmi_system_id *id) |
| 1187 | { |
| 1188 | return 1; |
| 1189 | } |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1190 | |
| 1191 | /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". |
| 1192 | * So we need to put "Apple MacBook Pro" before "Apple MacBook". */ |
| 1193 | static __initdata struct dmi_system_id applesmc_whitelist[] = { |
Henrik Rydberg | f5274c9 | 2008-10-18 20:27:40 -0700 | [diff] [blame] | 1194 | { applesmc_dmi_match, "Apple MacBook Air", { |
| 1195 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1196 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1197 | }, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1198 | { applesmc_dmi_match, "Apple MacBook Pro", { |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 1199 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1200 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1201 | }, |
Riki Oktarianto | cd19ba1 | 2008-02-04 23:41:58 -0800 | [diff] [blame] | 1202 | { applesmc_dmi_match, "Apple MacBook", { |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 1203 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1204 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBook") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1205 | }, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1206 | { applesmc_dmi_match, "Apple Macmini", { |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 1207 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1208 | DMI_MATCH(DMI_PRODUCT_NAME, "Macmini") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1209 | }, |
Henrik Rydberg | 45a3a36 | 2008-11-19 15:36:42 -0800 | [diff] [blame] | 1210 | { applesmc_dmi_match, "Apple MacPro", { |
| 1211 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1212 | DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1213 | }, |
Roberto De Ioris | 9f86f28 | 2008-08-15 00:40:30 -0700 | [diff] [blame] | 1214 | { applesmc_dmi_match, "Apple iMac", { |
Guenter Roeck | 2bfe814 | 2010-11-10 10:42:21 -0800 | [diff] [blame] | 1215 | DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), |
| 1216 | DMI_MATCH(DMI_PRODUCT_NAME, "iMac") }, |
Henrik Rydberg | 40ef06f | 2010-11-10 10:58:05 +0000 | [diff] [blame] | 1217 | }, |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1218 | { .ident = NULL } |
| 1219 | }; |
| 1220 | |
| 1221 | static int __init applesmc_init(void) |
| 1222 | { |
| 1223 | int ret; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1224 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1225 | if (!dmi_check_system(applesmc_whitelist)) { |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 1226 | pr_warn("supported laptop not found!\n"); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1227 | ret = -ENODEV; |
| 1228 | goto out; |
| 1229 | } |
| 1230 | |
| 1231 | if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS, |
| 1232 | "applesmc")) { |
| 1233 | ret = -ENXIO; |
| 1234 | goto out; |
| 1235 | } |
| 1236 | |
| 1237 | ret = platform_driver_register(&applesmc_driver); |
| 1238 | if (ret) |
| 1239 | goto out_region; |
| 1240 | |
Jean Delvare | ddfbf2a | 2007-05-08 20:27:04 -0700 | [diff] [blame] | 1241 | pdev = platform_device_register_simple("applesmc", APPLESMC_DATA_PORT, |
| 1242 | NULL, 0); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1243 | if (IS_ERR(pdev)) { |
| 1244 | ret = PTR_ERR(pdev); |
| 1245 | goto out_driver; |
| 1246 | } |
| 1247 | |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 1248 | /* create register cache */ |
| 1249 | ret = applesmc_init_smcreg(); |
Nicolas Boichat | 6996abf | 2007-05-27 22:17:43 +0200 | [diff] [blame] | 1250 | if (ret) |
| 1251 | goto out_device; |
Nicolas Boichat | fa74419 | 2007-05-23 13:58:13 -0700 | [diff] [blame] | 1252 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1253 | ret = applesmc_create_nodes(info_group, 1); |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 1254 | if (ret) |
| 1255 | goto out_smcreg; |
| 1256 | |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 1257 | ret = applesmc_create_nodes(fan_group, smcreg.fan_count); |
| 1258 | if (ret) |
| 1259 | goto out_info; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1260 | |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1261 | ret = applesmc_create_nodes(temp_group, smcreg.temp_count); |
| 1262 | if (ret) |
| 1263 | goto out_fans; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1264 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1265 | ret = applesmc_create_accelerometer(); |
| 1266 | if (ret) |
| 1267 | goto out_temperature; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1268 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1269 | ret = applesmc_create_light_sensor(); |
| 1270 | if (ret) |
| 1271 | goto out_accelerometer; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1272 | |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1273 | ret = applesmc_create_key_backlight(); |
| 1274 | if (ret) |
| 1275 | goto out_light_sysfs; |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1276 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1277 | hwmon_dev = hwmon_device_register(&pdev->dev); |
| 1278 | if (IS_ERR(hwmon_dev)) { |
| 1279 | ret = PTR_ERR(hwmon_dev); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1280 | goto out_light_ledclass; |
| 1281 | } |
| 1282 | |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1283 | return 0; |
| 1284 | |
| 1285 | out_light_ledclass: |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1286 | applesmc_release_key_backlight(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1287 | out_light_sysfs: |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1288 | applesmc_release_light_sensor(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1289 | out_accelerometer: |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1290 | applesmc_release_accelerometer(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1291 | out_temperature: |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1292 | applesmc_destroy_nodes(temp_group); |
Henrik Rydberg | 0559a53 | 2010-05-11 09:17:47 +0200 | [diff] [blame] | 1293 | out_fans: |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 1294 | applesmc_destroy_nodes(fan_group); |
| 1295 | out_info: |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1296 | applesmc_destroy_nodes(info_group); |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 1297 | out_smcreg: |
| 1298 | applesmc_destroy_smcreg(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1299 | out_device: |
| 1300 | platform_device_unregister(pdev); |
| 1301 | out_driver: |
| 1302 | platform_driver_unregister(&applesmc_driver); |
| 1303 | out_region: |
| 1304 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); |
| 1305 | out: |
Joe Perches | 1ee7c71 | 2010-11-09 15:15:03 +0000 | [diff] [blame] | 1306 | pr_warn("driver init failed (ret=%d)!\n", ret); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1307 | return ret; |
| 1308 | } |
| 1309 | |
| 1310 | static void __exit applesmc_exit(void) |
| 1311 | { |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 1312 | hwmon_device_unregister(hwmon_dev); |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1313 | applesmc_release_key_backlight(); |
| 1314 | applesmc_release_light_sensor(); |
| 1315 | applesmc_release_accelerometer(); |
Henrik Rydberg | 9792dad | 2010-11-10 10:58:04 +0000 | [diff] [blame] | 1316 | applesmc_destroy_nodes(temp_group); |
Henrik Rydberg | 3eba2bf | 2010-11-09 15:15:08 +0000 | [diff] [blame] | 1317 | applesmc_destroy_nodes(fan_group); |
Henrik Rydberg | 0b0b5df | 2010-11-09 15:15:09 +0000 | [diff] [blame] | 1318 | applesmc_destroy_nodes(info_group); |
Henrik Rydberg | 5874583 | 2010-11-10 10:58:03 +0000 | [diff] [blame] | 1319 | applesmc_destroy_smcreg(); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1320 | platform_device_unregister(pdev); |
| 1321 | platform_driver_unregister(&applesmc_driver); |
| 1322 | release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS); |
Nicolas Boichat | 6f2fad7 | 2007-05-08 00:24:52 -0700 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | module_init(applesmc_init); |
| 1326 | module_exit(applesmc_exit); |
| 1327 | |
| 1328 | MODULE_AUTHOR("Nicolas Boichat"); |
| 1329 | MODULE_DESCRIPTION("Apple SMC"); |
| 1330 | MODULE_LICENSE("GPL v2"); |
Henrik Rydberg | dc924ef | 2008-12-01 13:13:49 -0800 | [diff] [blame] | 1331 | MODULE_DEVICE_TABLE(dmi, applesmc_whitelist); |