Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 1 | /*-*-linux-c-*-*/ |
| 2 | |
| 3 | /* |
| 4 | Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301, USA. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * msi-laptop.c - MSI S270 laptop support. This laptop is sold under |
| 24 | * various brands, including "Cytron/TCM/Medion/Tchibo MD96100". |
| 25 | * |
Lennart Poettering | 4f5c791 | 2007-05-08 22:07:02 +0200 | [diff] [blame] | 26 | * Driver also supports S271, S420 models. |
| 27 | * |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 28 | * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/: |
| 29 | * |
| 30 | * lcd_level - Screen brightness: contains a single integer in the |
| 31 | * range 0..8. (rw) |
| 32 | * |
| 33 | * auto_brightness - Enable automatic brightness control: contains |
| 34 | * either 0 or 1. If set to 1 the hardware adjusts the screen |
| 35 | * brightness automatically when the power cord is |
| 36 | * plugged/unplugged. (rw) |
| 37 | * |
| 38 | * wlan - WLAN subsystem enabled: contains either 0 or 1. (ro) |
| 39 | * |
| 40 | * bluetooth - Bluetooth subsystem enabled: contains either 0 or 1 |
| 41 | * Please note that this file is constantly 0 if no Bluetooth |
| 42 | * hardware is available. (ro) |
| 43 | * |
| 44 | * In addition to these platform device attributes the driver |
| 45 | * registers itself in the Linux backlight control subsystem and is |
| 46 | * available to userspace under /sys/class/backlight/msi-laptop-bl/. |
| 47 | * |
| 48 | * This driver might work on other laptops produced by MSI. If you |
| 49 | * want to try it you can pass force=1 as argument to the module which |
| 50 | * will force it to load even when the DMI data doesn't identify the |
| 51 | * laptop as MSI S270. YMMV. |
| 52 | */ |
| 53 | |
| 54 | #include <linux/module.h> |
| 55 | #include <linux/kernel.h> |
| 56 | #include <linux/init.h> |
| 57 | #include <linux/acpi.h> |
| 58 | #include <linux/dmi.h> |
| 59 | #include <linux/backlight.h> |
| 60 | #include <linux/platform_device.h> |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 61 | |
| 62 | #define MSI_DRIVER_VERSION "0.5" |
| 63 | |
| 64 | #define MSI_LCD_LEVEL_MAX 9 |
| 65 | |
| 66 | #define MSI_EC_COMMAND_WIRELESS 0x10 |
| 67 | #define MSI_EC_COMMAND_LCD_LEVEL 0x11 |
| 68 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 69 | #define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e |
| 70 | #define MSI_STANDARD_EC_BLUETOOTH_MASK (1 << 0) |
| 71 | #define MSI_STANDARD_EC_WEBCAM_MASK (1 << 1) |
| 72 | #define MSI_STANDARD_EC_WLAN_MASK (1 << 3) |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 73 | #define MSI_STANDARD_EC_3G_MASK (1 << 4) |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 74 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 75 | static int force; |
| 76 | module_param(force, bool, 0); |
| 77 | MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); |
| 78 | |
| 79 | static int auto_brightness; |
| 80 | module_param(auto_brightness, int, 0); |
| 81 | MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)"); |
| 82 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 83 | static bool old_ec_model; |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 84 | static int wlan_s, bluetooth_s, threeg_s; |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 85 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 86 | /* Hardware access */ |
| 87 | |
| 88 | static int set_lcd_level(int level) |
| 89 | { |
| 90 | u8 buf[2]; |
| 91 | |
| 92 | if (level < 0 || level >= MSI_LCD_LEVEL_MAX) |
| 93 | return -EINVAL; |
| 94 | |
| 95 | buf[0] = 0x80; |
| 96 | buf[1] = (u8) (level*31); |
| 97 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 98 | return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), NULL, 0, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | static int get_lcd_level(void) |
| 102 | { |
| 103 | u8 wdata = 0, rdata; |
| 104 | int result; |
| 105 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 106 | result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 107 | if (result < 0) |
| 108 | return result; |
| 109 | |
| 110 | return (int) rdata / 31; |
| 111 | } |
| 112 | |
| 113 | static int get_auto_brightness(void) |
| 114 | { |
| 115 | u8 wdata = 4, rdata; |
| 116 | int result; |
| 117 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 118 | result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 119 | if (result < 0) |
| 120 | return result; |
| 121 | |
| 122 | return !!(rdata & 8); |
| 123 | } |
| 124 | |
| 125 | static int set_auto_brightness(int enable) |
| 126 | { |
| 127 | u8 wdata[2], rdata; |
| 128 | int result; |
| 129 | |
| 130 | wdata[0] = 4; |
| 131 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 132 | result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, &rdata, 1, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 133 | if (result < 0) |
| 134 | return result; |
| 135 | |
| 136 | wdata[0] = 0x84; |
| 137 | wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0); |
| 138 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 139 | return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | static int get_wireless_state(int *wlan, int *bluetooth) |
| 143 | { |
| 144 | u8 wdata = 0, rdata; |
| 145 | int result; |
| 146 | |
Lennart Poettering | 00eb43a | 2007-05-04 14:16:19 +0200 | [diff] [blame] | 147 | result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1, 1); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 148 | if (result < 0) |
| 149 | return -1; |
| 150 | |
| 151 | if (wlan) |
| 152 | *wlan = !!(rdata & 8); |
| 153 | |
| 154 | if (bluetooth) |
| 155 | *bluetooth = !!(rdata & 128); |
| 156 | |
| 157 | return 0; |
| 158 | } |
| 159 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 160 | static int get_wireless_state_ec_standard(void) |
| 161 | { |
| 162 | u8 rdata; |
| 163 | int result; |
| 164 | |
| 165 | result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata); |
| 166 | if (result < 0) |
| 167 | return -1; |
| 168 | |
| 169 | wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK); |
| 170 | |
| 171 | bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK); |
| 172 | |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 173 | threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK); |
| 174 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 175 | return 0; |
| 176 | } |
| 177 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 178 | /* Backlight device stuff */ |
| 179 | |
| 180 | static int bl_get_brightness(struct backlight_device *b) |
| 181 | { |
| 182 | return get_lcd_level(); |
| 183 | } |
| 184 | |
| 185 | |
| 186 | static int bl_update_status(struct backlight_device *b) |
| 187 | { |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 188 | return set_lcd_level(b->props.brightness); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 189 | } |
| 190 | |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 191 | static struct backlight_ops msibl_ops = { |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 192 | .get_brightness = bl_get_brightness, |
| 193 | .update_status = bl_update_status, |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 194 | }; |
| 195 | |
| 196 | static struct backlight_device *msibl_device; |
| 197 | |
| 198 | /* Platform device */ |
| 199 | |
| 200 | static ssize_t show_wlan(struct device *dev, |
| 201 | struct device_attribute *attr, char *buf) |
| 202 | { |
| 203 | |
| 204 | int ret, enabled; |
| 205 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 206 | if (old_ec_model) { |
| 207 | ret = get_wireless_state(&enabled, NULL); |
| 208 | } else { |
| 209 | ret = get_wireless_state_ec_standard(); |
| 210 | enabled = wlan_s; |
| 211 | } |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 212 | if (ret < 0) |
| 213 | return ret; |
| 214 | |
| 215 | return sprintf(buf, "%i\n", enabled); |
| 216 | } |
| 217 | |
| 218 | static ssize_t show_bluetooth(struct device *dev, |
| 219 | struct device_attribute *attr, char *buf) |
| 220 | { |
| 221 | |
| 222 | int ret, enabled; |
| 223 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 224 | if (old_ec_model) { |
| 225 | ret = get_wireless_state(NULL, &enabled); |
| 226 | } else { |
| 227 | ret = get_wireless_state_ec_standard(); |
| 228 | enabled = bluetooth_s; |
| 229 | } |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 230 | if (ret < 0) |
| 231 | return ret; |
| 232 | |
| 233 | return sprintf(buf, "%i\n", enabled); |
| 234 | } |
| 235 | |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 236 | static ssize_t show_threeg(struct device *dev, |
| 237 | struct device_attribute *attr, char *buf) |
| 238 | { |
| 239 | |
| 240 | int ret; |
| 241 | |
| 242 | /* old msi ec not support 3G */ |
| 243 | if (old_ec_model) |
| 244 | return -1; |
| 245 | |
| 246 | ret = get_wireless_state_ec_standard(); |
| 247 | if (ret < 0) |
| 248 | return ret; |
| 249 | |
| 250 | return sprintf(buf, "%i\n", threeg_s); |
| 251 | } |
| 252 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 253 | static ssize_t show_lcd_level(struct device *dev, |
| 254 | struct device_attribute *attr, char *buf) |
| 255 | { |
| 256 | |
| 257 | int ret; |
| 258 | |
| 259 | ret = get_lcd_level(); |
| 260 | if (ret < 0) |
| 261 | return ret; |
| 262 | |
| 263 | return sprintf(buf, "%i\n", ret); |
| 264 | } |
| 265 | |
| 266 | static ssize_t store_lcd_level(struct device *dev, |
| 267 | struct device_attribute *attr, const char *buf, size_t count) |
| 268 | { |
| 269 | |
| 270 | int level, ret; |
| 271 | |
| 272 | if (sscanf(buf, "%i", &level) != 1 || (level < 0 || level >= MSI_LCD_LEVEL_MAX)) |
| 273 | return -EINVAL; |
| 274 | |
| 275 | ret = set_lcd_level(level); |
| 276 | if (ret < 0) |
| 277 | return ret; |
| 278 | |
| 279 | return count; |
| 280 | } |
| 281 | |
| 282 | static ssize_t show_auto_brightness(struct device *dev, |
| 283 | struct device_attribute *attr, char *buf) |
| 284 | { |
| 285 | |
| 286 | int ret; |
| 287 | |
| 288 | ret = get_auto_brightness(); |
| 289 | if (ret < 0) |
| 290 | return ret; |
| 291 | |
| 292 | return sprintf(buf, "%i\n", ret); |
| 293 | } |
| 294 | |
| 295 | static ssize_t store_auto_brightness(struct device *dev, |
| 296 | struct device_attribute *attr, const char *buf, size_t count) |
| 297 | { |
| 298 | |
| 299 | int enable, ret; |
| 300 | |
| 301 | if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1))) |
| 302 | return -EINVAL; |
| 303 | |
| 304 | ret = set_auto_brightness(enable); |
| 305 | if (ret < 0) |
| 306 | return ret; |
| 307 | |
| 308 | return count; |
| 309 | } |
| 310 | |
| 311 | static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level); |
| 312 | static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness, store_auto_brightness); |
| 313 | static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL); |
| 314 | static DEVICE_ATTR(wlan, 0444, show_wlan, NULL); |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 315 | static DEVICE_ATTR(threeg, 0444, show_threeg, NULL); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 316 | |
| 317 | static struct attribute *msipf_attributes[] = { |
| 318 | &dev_attr_lcd_level.attr, |
| 319 | &dev_attr_auto_brightness.attr, |
| 320 | &dev_attr_bluetooth.attr, |
| 321 | &dev_attr_wlan.attr, |
| 322 | NULL |
| 323 | }; |
| 324 | |
| 325 | static struct attribute_group msipf_attribute_group = { |
| 326 | .attrs = msipf_attributes |
| 327 | }; |
| 328 | |
| 329 | static struct platform_driver msipf_driver = { |
| 330 | .driver = { |
| 331 | .name = "msi-laptop-pf", |
| 332 | .owner = THIS_MODULE, |
| 333 | } |
| 334 | }; |
| 335 | |
| 336 | static struct platform_device *msipf_device; |
| 337 | |
| 338 | /* Initialization */ |
| 339 | |
Jeff Garzik | 1855256 | 2007-10-03 15:15:40 -0400 | [diff] [blame] | 340 | static int dmi_check_cb(const struct dmi_system_id *id) |
Lennart Poettering | 4f5c791 | 2007-05-08 22:07:02 +0200 | [diff] [blame] | 341 | { |
| 342 | printk("msi-laptop: Identified laptop model '%s'.\n", id->ident); |
| 343 | return 0; |
| 344 | } |
| 345 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 346 | static struct dmi_system_id __initdata msi_dmi_table[] = { |
| 347 | { |
| 348 | .ident = "MSI S270", |
| 349 | .matches = { |
| 350 | DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"), |
| 351 | DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"), |
Lennart Poettering | 4f5c791 | 2007-05-08 22:07:02 +0200 | [diff] [blame] | 352 | DMI_MATCH(DMI_PRODUCT_VERSION, "0131"), |
| 353 | DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD") |
| 354 | }, |
| 355 | .callback = dmi_check_cb |
| 356 | }, |
| 357 | { |
| 358 | .ident = "MSI S271", |
| 359 | .matches = { |
| 360 | DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), |
| 361 | DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"), |
| 362 | DMI_MATCH(DMI_PRODUCT_VERSION, "0581"), |
| 363 | DMI_MATCH(DMI_BOARD_NAME, "MS-1058") |
| 364 | }, |
| 365 | .callback = dmi_check_cb |
| 366 | }, |
| 367 | { |
| 368 | .ident = "MSI S420", |
| 369 | .matches = { |
| 370 | DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), |
| 371 | DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"), |
| 372 | DMI_MATCH(DMI_BOARD_VENDOR, "MSI"), |
| 373 | DMI_MATCH(DMI_BOARD_NAME, "MS-1412") |
| 374 | }, |
| 375 | .callback = dmi_check_cb |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 376 | }, |
| 377 | { |
| 378 | .ident = "Medion MD96100", |
| 379 | .matches = { |
| 380 | DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"), |
| 381 | DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"), |
Lennart Poettering | 4f5c791 | 2007-05-08 22:07:02 +0200 | [diff] [blame] | 382 | DMI_MATCH(DMI_PRODUCT_VERSION, "0131"), |
| 383 | DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT'L CO.,LTD") |
| 384 | }, |
| 385 | .callback = dmi_check_cb |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 386 | }, |
| 387 | { } |
| 388 | }; |
| 389 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 390 | static int __init msi_init(void) |
| 391 | { |
| 392 | int ret; |
| 393 | |
| 394 | if (acpi_disabled) |
| 395 | return -ENODEV; |
| 396 | |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 397 | if (force || dmi_check_system(msi_dmi_table)) |
| 398 | old_ec_model = 1; |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 399 | |
| 400 | if (auto_brightness < 0 || auto_brightness > 2) |
| 401 | return -EINVAL; |
| 402 | |
| 403 | /* Register backlight stuff */ |
| 404 | |
Thomas Renninger | a598c82 | 2008-08-01 17:38:01 +0200 | [diff] [blame] | 405 | if (acpi_video_backlight_support()) { |
| 406 | printk(KERN_INFO "MSI: Brightness ignored, must be controlled " |
| 407 | "by ACPI video driver\n"); |
| 408 | } else { |
| 409 | msibl_device = backlight_device_register("msi-laptop-bl", NULL, |
| 410 | NULL, &msibl_ops); |
| 411 | if (IS_ERR(msibl_device)) |
| 412 | return PTR_ERR(msibl_device); |
| 413 | msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1; |
| 414 | } |
Richard Purdie | 599a52d | 2007-02-10 23:07:48 +0000 | [diff] [blame] | 415 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 416 | ret = platform_driver_register(&msipf_driver); |
| 417 | if (ret) |
| 418 | goto fail_backlight; |
| 419 | |
| 420 | /* Register platform stuff */ |
| 421 | |
| 422 | msipf_device = platform_device_alloc("msi-laptop-pf", -1); |
| 423 | if (!msipf_device) { |
| 424 | ret = -ENOMEM; |
| 425 | goto fail_platform_driver; |
| 426 | } |
| 427 | |
| 428 | ret = platform_device_add(msipf_device); |
| 429 | if (ret) |
| 430 | goto fail_platform_device1; |
| 431 | |
| 432 | ret = sysfs_create_group(&msipf_device->dev.kobj, &msipf_attribute_group); |
| 433 | if (ret) |
| 434 | goto fail_platform_device2; |
| 435 | |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 436 | if (!old_ec_model) { |
| 437 | ret = device_create_file(&msipf_device->dev, &dev_attr_threeg); |
| 438 | if (ret) |
| 439 | goto fail_platform_device2; |
| 440 | } |
| 441 | |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 442 | /* Disable automatic brightness control by default because |
| 443 | * this module was probably loaded to do brightness control in |
| 444 | * software. */ |
| 445 | |
| 446 | if (auto_brightness != 2) |
| 447 | set_auto_brightness(auto_brightness); |
| 448 | |
| 449 | printk(KERN_INFO "msi-laptop: driver "MSI_DRIVER_VERSION" successfully loaded.\n"); |
| 450 | |
| 451 | return 0; |
| 452 | |
| 453 | fail_platform_device2: |
| 454 | |
| 455 | platform_device_del(msipf_device); |
| 456 | |
| 457 | fail_platform_device1: |
| 458 | |
| 459 | platform_device_put(msipf_device); |
| 460 | |
| 461 | fail_platform_driver: |
| 462 | |
| 463 | platform_driver_unregister(&msipf_driver); |
| 464 | |
| 465 | fail_backlight: |
| 466 | |
| 467 | backlight_device_unregister(msibl_device); |
| 468 | |
| 469 | return ret; |
| 470 | } |
| 471 | |
| 472 | static void __exit msi_cleanup(void) |
| 473 | { |
| 474 | |
| 475 | sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group); |
Lee, Chun-Yi | fc0dc4c | 2010-01-09 23:17:07 +0800 | [diff] [blame^] | 476 | if (!old_ec_model) |
| 477 | device_remove_file(&msipf_device->dev, &dev_attr_threeg); |
Lennart Poettering | 8c4c731 | 2006-10-06 01:27:02 -0400 | [diff] [blame] | 478 | platform_device_unregister(msipf_device); |
| 479 | platform_driver_unregister(&msipf_driver); |
| 480 | backlight_device_unregister(msibl_device); |
| 481 | |
| 482 | /* Enable automatic brightness control again */ |
| 483 | if (auto_brightness != 2) |
| 484 | set_auto_brightness(1); |
| 485 | |
| 486 | printk(KERN_INFO "msi-laptop: driver unloaded.\n"); |
| 487 | } |
| 488 | |
| 489 | module_init(msi_init); |
| 490 | module_exit(msi_cleanup); |
| 491 | |
| 492 | MODULE_AUTHOR("Lennart Poettering"); |
| 493 | MODULE_DESCRIPTION("MSI Laptop Support"); |
| 494 | MODULE_VERSION(MSI_DRIVER_VERSION); |
| 495 | MODULE_LICENSE("GPL"); |
Lennart Poettering | 4f5c791 | 2007-05-08 22:07:02 +0200 | [diff] [blame] | 496 | |
| 497 | MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*"); |
| 498 | MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*"); |
| 499 | MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*"); |
| 500 | MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*"); |
Lee, Chun-Yi | 46d0e9e | 2010-01-09 21:16:52 +0800 | [diff] [blame] | 501 | MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*"); |