drivers/platform/x86/msi-laptop.c

   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  *
  26  * Driver also supports S271, S420 models.
  27  *
  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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  55
  56 #include <linux/module.h>
  57 #include <linux/kernel.h>
  58 #include <linux/init.h>
  59 #include <linux/acpi.h>
  60 #include <linux/dmi.h>
  61 #include <linux/backlight.h>
  62 #include <linux/platform_device.h>
  63 #include <linux/rfkill.h>
  64 #include <linux/i8042.h>
  65 #include <linux/input.h>
  66 #include <linux/input/sparse-keymap.h>
  67
  68 #define MSI_DRIVER_VERSION "0.5"
  69
  70 #define MSI_LCD_LEVEL_MAX 9
  71
  72 #define MSI_EC_COMMAND_WIRELESS 0x10
  73 #define MSI_EC_COMMAND_LCD_LEVEL 0x11
  74
  75 #define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
  76 #define MSI_STANDARD_EC_BLUETOOTH_MASK  (1 << 0)
  77 #define MSI_STANDARD_EC_WEBCAM_MASK     (1 << 1)
  78 #define MSI_STANDARD_EC_WLAN_MASK       (1 << 3)
  79 #define MSI_STANDARD_EC_3G_MASK         (1 << 4)
  80
  81 /* For set SCM load flag to disable BIOS fn key */
  82 #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS        0x2d
  83 #define MSI_STANDARD_EC_SCM_LOAD_MASK           (1 << 0)
  84
  85 #define MSI_STANDARD_EC_FUNCTIONS_ADDRESS       0xe4
  86 /* Power LED is orange - Turbo mode */
  87 #define MSI_STANDARD_EC_TURBO_MASK              (1 << 1)
  88 /* Power LED is green - ECO mode */
  89 #define MSI_STANDARD_EC_ECO_MASK                (1 << 3)
  90 /* Touchpad is turned on */
  91 #define MSI_STANDARD_EC_TOUCHPAD_MASK           (1 << 4)
  92 /* If this bit != bit 1, turbo mode can't be toggled */
  93 #define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK     (1 << 7)
  94
  95 #define MSI_STANDARD_EC_FAN_ADDRESS             0x33
  96 /* If zero, fan rotates at maximal speed */
  97 #define MSI_STANDARD_EC_AUTOFAN_MASK            (1 << 0)
  98
  99 #ifdef CONFIG_PM_SLEEP
 100 static int msi_laptop_resume(struct device *device);
 101 #endif
 102 static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
 103
 104 #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
 105
 106 static bool force;
 107 module_param(force, bool, 0);
 108 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
 109
 110 static int auto_brightness;
 111 module_param(auto_brightness, int, 0);
 112 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 113
 114 static const struct key_entry msi_laptop_keymap[] = {
 115         {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },  /* Touch Pad On */
 116         {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
 117         {KE_END, 0}
 118 };
 119
 120 static struct input_dev *msi_laptop_input_dev;
 121
 122 static int wlan_s, bluetooth_s, threeg_s;
 123 static int threeg_exists;
 124 static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 125
 126 /* MSI laptop quirks */
 127 struct quirk_entry {
 128         bool old_ec_model;
 129
 130         /* Some MSI 3G netbook only have one fn key to control
 131          * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
 132          * disable the original Wlan/Bluetooth control by BIOS when user press
 133          * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
 134          * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
 135          * On Linux, msi-laptop driver will do the same thing to disable the
 136          * original BIOS control, then might need use HAL or other userland
 137          * application to do the software control that simulate with SCM.
 138          * e.g. MSI N034 netbook
 139          */
 140         bool load_scm_model;
 141
 142         /* Some MSI laptops need delay before reading from EC */
 143         bool ec_delay;
 144
 145         /* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
 146          * some features working (e.g. ECO mode), but we cannot change
 147          * Wlan/Bluetooth state in software and we can only read its state.
 148          */
 149         bool ec_read_only;
 150 };
 151
 152 static struct quirk_entry *quirks;
 153
 154 /* Hardware access */
 155
 156 static int set_lcd_level(int level)
 157 {
 158         u8 buf[2];
 159
 160         if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
 161                 return -EINVAL;
 162
 163         buf[0] = 0x80;
 164         buf[1] = (u8) (level*31);
 165
 166         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
 167                               NULL, 0);
 168 }
 169
 170 static int get_lcd_level(void)
 171 {
 172         u8 wdata = 0, rdata;
 173         int result;
 174
 175         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 176                                 &rdata, 1);
 177         if (result < 0)
 178                 return result;
 179
 180         return (int) rdata / 31;
 181 }
 182
 183 static int get_auto_brightness(void)
 184 {
 185         u8 wdata = 4, rdata;
 186         int result;
 187
 188         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 189                                 &rdata, 1);
 190         if (result < 0)
 191                 return result;
 192
 193         return !!(rdata & 8);
 194 }
 195
 196 static int set_auto_brightness(int enable)
 197 {
 198         u8 wdata[2], rdata;
 199         int result;
 200
 201         wdata[0] = 4;
 202
 203         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
 204                                 &rdata, 1);
 205         if (result < 0)
 206                 return result;
 207
 208         wdata[0] = 0x84;
 209         wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
 210
 211         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
 212                               NULL, 0);
 213 }
 214
 215 static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
 216 {
 217         int status;
 218         u8 wdata = 0, rdata;
 219         int result;
 220
 221         if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
 222                 return -EINVAL;
 223
 224         if (quirks->ec_read_only)
 225                 return -EOPNOTSUPP;
 226
 227         /* read current device state */
 228         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 229         if (result < 0)
 230                 return result;
 231
 232         if (!!(rdata & mask) != status) {
 233                 /* reverse device bit */
 234                 if (rdata & mask)
 235                         wdata = rdata & ~mask;
 236                 else
 237                         wdata = rdata | mask;
 238
 239                 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
 240                 if (result < 0)
 241                         return result;
 242         }
 243
 244         return count;
 245 }
 246
 247 static int get_wireless_state(int *wlan, int *bluetooth)
 248 {
 249         u8 wdata = 0, rdata;
 250         int result;
 251
 252         result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
 253         if (result < 0)
 254                 return result;
 255
 256         if (wlan)
 257                 *wlan = !!(rdata & 8);
 258
 259         if (bluetooth)
 260                 *bluetooth = !!(rdata & 128);
 261
 262         return 0;
 263 }
 264
 265 static int get_wireless_state_ec_standard(void)
 266 {
 267         u8 rdata;
 268         int result;
 269
 270         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 271         if (result < 0)
 272                 return result;
 273
 274         wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
 275
 276         bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
 277
 278         threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 279
 280         return 0;
 281 }
 282
 283 static int get_threeg_exists(void)
 284 {
 285         u8 rdata;
 286         int result;
 287
 288         result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
 289         if (result < 0)
 290                 return result;
 291
 292         threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 293
 294         return 0;
 295 }
 296
 297 /* Backlight device stuff */
 298
 299 static int bl_get_brightness(struct backlight_device *b)
 300 {
 301         return get_lcd_level();
 302 }
 303
 304
 305 static int bl_update_status(struct backlight_device *b)
 306 {
 307         return set_lcd_level(b->props.brightness);
 308 }
 309
 310 static const struct backlight_ops msibl_ops = {
 311         .get_brightness = bl_get_brightness,
 312         .update_status  = bl_update_status,
 313 };
 314
 315 static struct backlight_device *msibl_device;
 316
 317 /* Platform device */
 318
 319 static ssize_t show_wlan(struct device *dev,
 320         struct device_attribute *attr, char *buf)
 321 {
 322
 323         int ret, enabled = 0;
 324
 325         if (quirks->old_ec_model) {
 326                 ret = get_wireless_state(&enabled, NULL);
 327         } else {
 328                 ret = get_wireless_state_ec_standard();
 329                 enabled = wlan_s;
 330         }
 331         if (ret < 0)
 332                 return ret;
 333
 334         return sprintf(buf, "%i\n", enabled);
 335 }
 336
 337 static ssize_t store_wlan(struct device *dev,
 338         struct device_attribute *attr, const char *buf, size_t count)
 339 {
 340         return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
 341 }
 342
 343 static ssize_t show_bluetooth(struct device *dev,
 344         struct device_attribute *attr, char *buf)
 345 {
 346
 347         int ret, enabled = 0;
 348
 349         if (quirks->old_ec_model) {
 350                 ret = get_wireless_state(NULL, &enabled);
 351         } else {
 352                 ret = get_wireless_state_ec_standard();
 353                 enabled = bluetooth_s;
 354         }
 355         if (ret < 0)
 356                 return ret;
 357
 358         return sprintf(buf, "%i\n", enabled);
 359 }
 360
 361 static ssize_t store_bluetooth(struct device *dev,
 362         struct device_attribute *attr, const char *buf, size_t count)
 363 {
 364         return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
 365 }
 366
 367 static ssize_t show_threeg(struct device *dev,
 368         struct device_attribute *attr, char *buf)
 369 {
 370
 371         int ret;
 372
 373         /* old msi ec not support 3G */
 374         if (quirks->old_ec_model)
 375                 return -ENODEV;
 376
 377         ret = get_wireless_state_ec_standard();
 378         if (ret < 0)
 379                 return ret;
 380
 381         return sprintf(buf, "%i\n", threeg_s);
 382 }
 383
 384 static ssize_t store_threeg(struct device *dev,
 385         struct device_attribute *attr, const char *buf, size_t count)
 386 {
 387         return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
 388 }
 389
 390 static ssize_t show_lcd_level(struct device *dev,
 391         struct device_attribute *attr, char *buf)
 392 {
 393
 394         int ret;
 395
 396         ret = get_lcd_level();
 397         if (ret < 0)
 398                 return ret;
 399
 400         return sprintf(buf, "%i\n", ret);
 401 }
 402
 403 static ssize_t store_lcd_level(struct device *dev,
 404         struct device_attribute *attr, const char *buf, size_t count)
 405 {
 406
 407         int level, ret;
 408
 409         if (sscanf(buf, "%i", &level) != 1 ||
 410             (level < 0 || level >= MSI_LCD_LEVEL_MAX))
 411                 return -EINVAL;
 412
 413         ret = set_lcd_level(level);
 414         if (ret < 0)
 415                 return ret;
 416
 417         return count;
 418 }
 419
 420 static ssize_t show_auto_brightness(struct device *dev,
 421         struct device_attribute *attr, char *buf)
 422 {
 423
 424         int ret;
 425
 426         ret = get_auto_brightness();
 427         if (ret < 0)
 428                 return ret;
 429
 430         return sprintf(buf, "%i\n", ret);
 431 }
 432
 433 static ssize_t store_auto_brightness(struct device *dev,
 434         struct device_attribute *attr, const char *buf, size_t count)
 435 {
 436
 437         int enable, ret;
 438
 439         if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 440                 return -EINVAL;
 441
 442         ret = set_auto_brightness(enable);
 443         if (ret < 0)
 444                 return ret;
 445
 446         return count;
 447 }
 448
 449 static ssize_t show_touchpad(struct device *dev,
 450         struct device_attribute *attr, char *buf)
 451 {
 452
 453         u8 rdata;
 454         int result;
 455
 456         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 457         if (result < 0)
 458                 return result;
 459
 460         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
 461 }
 462
 463 static ssize_t show_turbo(struct device *dev,
 464         struct device_attribute *attr, char *buf)
 465 {
 466
 467         u8 rdata;
 468         int result;
 469
 470         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 471         if (result < 0)
 472                 return result;
 473
 474         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
 475 }
 476
 477 static ssize_t show_eco(struct device *dev,
 478         struct device_attribute *attr, char *buf)
 479 {
 480
 481         u8 rdata;
 482         int result;
 483
 484         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 485         if (result < 0)
 486                 return result;
 487
 488         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
 489 }
 490
 491 static ssize_t show_turbo_cooldown(struct device *dev,
 492         struct device_attribute *attr, char *buf)
 493 {
 494
 495         u8 rdata;
 496         int result;
 497
 498         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 499         if (result < 0)
 500                 return result;
 501
 502         return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
 503                 (!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
 504 }
 505
 506 static ssize_t show_auto_fan(struct device *dev,
 507         struct device_attribute *attr, char *buf)
 508 {
 509
 510         u8 rdata;
 511         int result;
 512
 513         result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
 514         if (result < 0)
 515                 return result;
 516
 517         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
 518 }
 519
 520 static ssize_t store_auto_fan(struct device *dev,
 521         struct device_attribute *attr, const char *buf, size_t count)
 522 {
 523
 524         int enable, result;
 525
 526         if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 527                 return -EINVAL;
 528
 529         result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
 530         if (result < 0)
 531                 return result;
 532
 533         return count;
 534 }
 535
 536 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 537 static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 538                    store_auto_brightness);
 539 static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 540 static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 541 static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 542 static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
 543 static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
 544 static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
 545 static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
 546 static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 547
 548 static struct attribute *msipf_attributes[] = {
 549         &dev_attr_bluetooth.attr,
 550         &dev_attr_wlan.attr,
 551         &dev_attr_touchpad.attr,
 552         &dev_attr_turbo_mode.attr,
 553         &dev_attr_eco_mode.attr,
 554         &dev_attr_turbo_cooldown.attr,
 555         &dev_attr_auto_fan.attr,
 556         NULL
 557 };
 558
 559 static struct attribute *msipf_old_attributes[] = {
 560         &dev_attr_lcd_level.attr,
 561         &dev_attr_auto_brightness.attr,
 562         NULL
 563 };
 564
 565 static struct attribute_group msipf_attribute_group = {
 566         .attrs = msipf_attributes
 567 };
 568
 569 static struct attribute_group msipf_old_attribute_group = {
 570         .attrs = msipf_old_attributes
 571 };
 572
 573 static struct platform_driver msipf_driver = {
 574         .driver = {
 575                 .name = "msi-laptop-pf",
 576                 .owner = THIS_MODULE,
 577                 .pm = &msi_laptop_pm,
 578         },
 579 };
 580
 581 static struct platform_device *msipf_device;
 582
 583 /* Initialization */
 584
 585 static struct quirk_entry quirk_old_ec_model = {
 586         .old_ec_model = true,
 587 };
 588
 589 static struct quirk_entry quirk_load_scm_model = {
 590         .load_scm_model = true,
 591         .ec_delay = true,
 592 };
 593
 594 static struct quirk_entry quirk_load_scm_ro_model = {
 595         .load_scm_model = true,
 596         .ec_read_only = true,
 597 };
 598
 599 static int dmi_check_cb(const struct dmi_system_id *dmi)
 600 {
 601         pr_info("Identified laptop model '%s'\n", dmi->ident);
 602
 603         quirks = dmi->driver_data;
 604
 605         return 1;
 606 }
 607
 608 static struct dmi_system_id __initdata msi_dmi_table[] = {
 609         {
 610                 .ident = "MSI S270",
 611                 .matches = {
 612                         DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
 613                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 614                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 615                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 616                                   "MICRO-STAR INT'L CO.,LTD")
 617                 },
 618                 .driver_data = &quirk_old_ec_model,
 619                 .callback = dmi_check_cb
 620         },
 621         {
 622                 .ident = "MSI S271",
 623                 .matches = {
 624                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 625                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
 626                         DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
 627                         DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
 628                 },
 629                 .driver_data = &quirk_old_ec_model,
 630                 .callback = dmi_check_cb
 631         },
 632         {
 633                 .ident = "MSI S420",
 634                 .matches = {
 635                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 636                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
 637                         DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
 638                         DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
 639                 },
 640                 .driver_data = &quirk_old_ec_model,
 641                 .callback = dmi_check_cb
 642         },
 643         {
 644                 .ident = "Medion MD96100",
 645                 .matches = {
 646                         DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 647                         DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 648                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 649                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 650                                   "MICRO-STAR INT'L CO.,LTD")
 651                 },
 652                 .driver_data = &quirk_old_ec_model,
 653                 .callback = dmi_check_cb
 654         },
 655         {
 656                 .ident = "MSI N034",
 657                 .matches = {
 658                         DMI_MATCH(DMI_SYS_VENDOR,
 659                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 660                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
 661                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 662                         "MICRO-STAR INTERNATIONAL CO., LTD")
 663                 },
 664                 .driver_data = &quirk_load_scm_model,
 665                 .callback = dmi_check_cb
 666         },
 667         {
 668                 .ident = "MSI N051",
 669                 .matches = {
 670                         DMI_MATCH(DMI_SYS_VENDOR,
 671                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 672                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
 673                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 674                         "MICRO-STAR INTERNATIONAL CO., LTD")
 675                 },
 676                 .driver_data = &quirk_load_scm_model,
 677                 .callback = dmi_check_cb
 678         },
 679         {
 680                 .ident = "MSI N014",
 681                 .matches = {
 682                         DMI_MATCH(DMI_SYS_VENDOR,
 683                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 684                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
 685                 },
 686                 .driver_data = &quirk_load_scm_model,
 687                 .callback = dmi_check_cb
 688         },
 689         {
 690                 .ident = "MSI CR620",
 691                 .matches = {
 692                         DMI_MATCH(DMI_SYS_VENDOR,
 693                                 "Micro-Star International"),
 694                         DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
 695                 },
 696                 .driver_data = &quirk_load_scm_model,
 697                 .callback = dmi_check_cb
 698         },
 699         {
 700                 .ident = "MSI U270",
 701                 .matches = {
 702                         DMI_MATCH(DMI_SYS_VENDOR,
 703                                 "Micro-Star International Co., Ltd."),
 704                         DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
 705                 },
 706                 .driver_data = &quirk_load_scm_model,
 707                 .callback = dmi_check_cb
 708         },
 709         {
 710                 .ident = "MSI U90/U100",
 711                 .matches = {
 712                         DMI_MATCH(DMI_SYS_VENDOR,
 713                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 714                         DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
 715                 },
 716                 .driver_data = &quirk_load_scm_ro_model,
 717                 .callback = dmi_check_cb
 718         },
 719         { }
 720 };
 721
 722 static int rfkill_bluetooth_set(void *data, bool blocked)
 723 {
 724         /* Do something with blocked...*/
 725         /*
 726          * blocked == false is on
 727          * blocked == true is off
 728          */
 729         int result = set_device_state(blocked ? "0" : "1", 0,
 730                         MSI_STANDARD_EC_BLUETOOTH_MASK);
 731
 732         return min(result, 0);
 733 }
 734
 735 static int rfkill_wlan_set(void *data, bool blocked)
 736 {
 737         int result = set_device_state(blocked ? "0" : "1", 0,
 738                         MSI_STANDARD_EC_WLAN_MASK);
 739
 740         return min(result, 0);
 741 }
 742
 743 static int rfkill_threeg_set(void *data, bool blocked)
 744 {
 745         int result = set_device_state(blocked ? "0" : "1", 0,
 746                         MSI_STANDARD_EC_3G_MASK);
 747
 748         return min(result, 0);
 749 }
 750
 751 static const struct rfkill_ops rfkill_bluetooth_ops = {
 752         .set_block = rfkill_bluetooth_set
 753 };
 754
 755 static const struct rfkill_ops rfkill_wlan_ops = {
 756         .set_block = rfkill_wlan_set
 757 };
 758
 759 static const struct rfkill_ops rfkill_threeg_ops = {
 760         .set_block = rfkill_threeg_set
 761 };
 762
 763 static void rfkill_cleanup(void)
 764 {
 765         if (rfk_bluetooth) {
 766                 rfkill_unregister(rfk_bluetooth);
 767                 rfkill_destroy(rfk_bluetooth);
 768         }
 769
 770         if (rfk_threeg) {
 771                 rfkill_unregister(rfk_threeg);
 772                 rfkill_destroy(rfk_threeg);
 773         }
 774
 775         if (rfk_wlan) {
 776                 rfkill_unregister(rfk_wlan);
 777                 rfkill_destroy(rfk_wlan);
 778         }
 779 }
 780
 781 static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
 782 {
 783         if (quirks->ec_read_only)
 784                 return rfkill_set_hw_state(rfkill, blocked);
 785         else
 786                 return rfkill_set_sw_state(rfkill, blocked);
 787 }
 788
 789 static void msi_update_rfkill(struct work_struct *ignored)
 790 {
 791         get_wireless_state_ec_standard();
 792
 793         if (rfk_wlan)
 794                 msi_rfkill_set_state(rfk_wlan, !wlan_s);
 795         if (rfk_bluetooth)
 796                 msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
 797         if (rfk_threeg)
 798                 msi_rfkill_set_state(rfk_threeg, !threeg_s);
 799 }
 800 static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
 801 static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
 802
 803 static void msi_send_touchpad_key(struct work_struct *ignored)
 804 {
 805         u8 rdata;
 806         int result;
 807
 808         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 809         if (result < 0)
 810                 return;
 811
 812         sparse_keymap_report_event(msi_laptop_input_dev,
 813                 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
 814                 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
 815 }
 816 static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
 817 static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
 818
 819 static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 820                                 struct serio *port)
 821 {
 822         static bool extended;
 823
 824         if (str & 0x20)
 825                 return false;
 826
 827         /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 828         if (unlikely(data == 0xe0)) {
 829                 extended = true;
 830                 return false;
 831         } else if (unlikely(extended)) {
 832                 extended = false;
 833                 switch (data) {
 834                 case 0xE4:
 835                         if (quirks->ec_delay) {
 836                                 schedule_delayed_work(&msi_touchpad_dwork,
 837                                         round_jiffies_relative(0.5 * HZ));
 838                         } else
 839                                 schedule_work(&msi_touchpad_work);
 840                         break;
 841                 case 0x54:
 842                 case 0x62:
 843                 case 0x76:
 844                         if (quirks->ec_delay) {
 845                                 schedule_delayed_work(&msi_rfkill_dwork,
 846                                         round_jiffies_relative(0.5 * HZ));
 847                         } else
 848                                 schedule_work(&msi_rfkill_work);
 849                         break;
 850                 }
 851         }
 852
 853         return false;
 854 }
 855
 856 static void msi_init_rfkill(struct work_struct *ignored)
 857 {
 858         if (rfk_wlan) {
 859                 rfkill_set_sw_state(rfk_wlan, !wlan_s);
 860                 rfkill_wlan_set(NULL, !wlan_s);
 861         }
 862         if (rfk_bluetooth) {
 863                 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
 864                 rfkill_bluetooth_set(NULL, !bluetooth_s);
 865         }
 866         if (rfk_threeg) {
 867                 rfkill_set_sw_state(rfk_threeg, !threeg_s);
 868                 rfkill_threeg_set(NULL, !threeg_s);
 869         }
 870 }
 871 static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
 872
 873 static int rfkill_init(struct platform_device *sdev)
 874 {
 875         /* add rfkill */
 876         int retval;
 877
 878         /* keep the hardware wireless state */
 879         get_wireless_state_ec_standard();
 880
 881         rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
 882                                 RFKILL_TYPE_BLUETOOTH,
 883                                 &rfkill_bluetooth_ops, NULL);
 884         if (!rfk_bluetooth) {
 885                 retval = -ENOMEM;
 886                 goto err_bluetooth;
 887         }
 888         retval = rfkill_register(rfk_bluetooth);
 889         if (retval)
 890                 goto err_bluetooth;
 891
 892         rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
 893                                 &rfkill_wlan_ops, NULL);
 894         if (!rfk_wlan) {
 895                 retval = -ENOMEM;
 896                 goto err_wlan;
 897         }
 898         retval = rfkill_register(rfk_wlan);
 899         if (retval)
 900                 goto err_wlan;
 901
 902         if (threeg_exists) {
 903                 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
 904                                 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
 905                 if (!rfk_threeg) {
 906                         retval = -ENOMEM;
 907                         goto err_threeg;
 908                 }
 909                 retval = rfkill_register(rfk_threeg);
 910                 if (retval)
 911                         goto err_threeg;
 912         }
 913
 914         /* schedule to run rfkill state initial */
 915         if (quirks->ec_delay) {
 916                 schedule_delayed_work(&msi_rfkill_init,
 917                         round_jiffies_relative(1 * HZ));
 918         } else
 919                 schedule_work(&msi_rfkill_work);
 920
 921         return 0;
 922
 923 err_threeg:
 924         rfkill_destroy(rfk_threeg);
 925         if (rfk_wlan)
 926                 rfkill_unregister(rfk_wlan);
 927 err_wlan:
 928         rfkill_destroy(rfk_wlan);
 929         if (rfk_bluetooth)
 930                 rfkill_unregister(rfk_bluetooth);
 931 err_bluetooth:
 932         rfkill_destroy(rfk_bluetooth);
 933
 934         return retval;
 935 }
 936
 937 #ifdef CONFIG_PM_SLEEP
 938 static int msi_laptop_resume(struct device *device)
 939 {
 940         u8 data;
 941         int result;
 942
 943         if (!quirks->load_scm_model)
 944                 return 0;
 945
 946         /* set load SCM to disable hardware control by fn key */
 947         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 948         if (result < 0)
 949                 return result;
 950
 951         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 952                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 953         if (result < 0)
 954                 return result;
 955
 956         return 0;
 957 }
 958 #endif
 959
 960 static int __init msi_laptop_input_setup(void)
 961 {
 962         int err;
 963
 964         msi_laptop_input_dev = input_allocate_device();
 965         if (!msi_laptop_input_dev)
 966                 return -ENOMEM;
 967
 968         msi_laptop_input_dev->name = "MSI Laptop hotkeys";
 969         msi_laptop_input_dev->phys = "msi-laptop/input0";
 970         msi_laptop_input_dev->id.bustype = BUS_HOST;
 971
 972         err = sparse_keymap_setup(msi_laptop_input_dev,
 973                 msi_laptop_keymap, NULL);
 974         if (err)
 975                 goto err_free_dev;
 976
 977         err = input_register_device(msi_laptop_input_dev);
 978         if (err)
 979                 goto err_free_keymap;
 980
 981         return 0;
 982
 983 err_free_keymap:
 984         sparse_keymap_free(msi_laptop_input_dev);
 985 err_free_dev:
 986         input_free_device(msi_laptop_input_dev);
 987         return err;
 988 }
 989
 990 static void msi_laptop_input_destroy(void)
 991 {
 992         sparse_keymap_free(msi_laptop_input_dev);
 993         input_unregister_device(msi_laptop_input_dev);
 994 }
 995
 996 static int __init load_scm_model_init(struct platform_device *sdev)
 997 {
 998         u8 data;
 999         int result;
1000
1001         if (!quirks->ec_read_only) {
1002                 /* allow userland write sysfs file  */
1003                 dev_attr_bluetooth.store = store_bluetooth;
1004                 dev_attr_wlan.store = store_wlan;
1005                 dev_attr_threeg.store = store_threeg;
1006                 dev_attr_bluetooth.attr.mode |= S_IWUSR;
1007                 dev_attr_wlan.attr.mode |= S_IWUSR;
1008                 dev_attr_threeg.attr.mode |= S_IWUSR;
1009         }
1010
1011         /* disable hardware control by fn key */
1012         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
1013         if (result < 0)
1014                 return result;
1015
1016         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
1017                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
1018         if (result < 0)
1019                 return result;
1020
1021         /* initial rfkill */
1022         result = rfkill_init(sdev);
1023         if (result < 0)
1024                 goto fail_rfkill;
1025
1026         /* setup input device */
1027         result = msi_laptop_input_setup();
1028         if (result)
1029                 goto fail_input;
1030
1031         result = i8042_install_filter(msi_laptop_i8042_filter);
1032         if (result) {
1033                 pr_err("Unable to install key filter\n");
1034                 goto fail_filter;
1035         }
1036
1037         return 0;
1038
1039 fail_filter:
1040         msi_laptop_input_destroy();
1041
1042 fail_input:
1043         rfkill_cleanup();
1044
1045 fail_rfkill:
1046
1047         return result;
1048
1049 }
1050
1051 static int __init msi_init(void)
1052 {
1053         int ret;
1054
1055         if (acpi_disabled)
1056                 return -ENODEV;
1057
1058         dmi_check_system(msi_dmi_table);
1059         if (!quirks)
1060                 /* quirks may be NULL if no match in DMI table */
1061                 quirks = &quirk_load_scm_model;
1062         if (force)
1063                 quirks = &quirk_old_ec_model;
1064
1065         if (!quirks->old_ec_model)
1066                 get_threeg_exists();
1067
1068         if (auto_brightness < 0 || auto_brightness > 2)
1069                 return -EINVAL;
1070
1071         /* Register backlight stuff */
1072
1073         if (!quirks->old_ec_model || acpi_video_backlight_support()) {
1074                 pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
1075         } else {
1076                 struct backlight_properties props;
1077                 memset(&props, 0, sizeof(struct backlight_properties));
1078                 props.type = BACKLIGHT_PLATFORM;
1079                 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1080                 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1081                                                          NULL, &msibl_ops,
1082                                                          &props);
1083                 if (IS_ERR(msibl_device))
1084                         return PTR_ERR(msibl_device);
1085         }
1086
1087         ret = platform_driver_register(&msipf_driver);
1088         if (ret)
1089                 goto fail_backlight;
1090
1091         /* Register platform stuff */
1092
1093         msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1094         if (!msipf_device) {
1095                 ret = -ENOMEM;
1096                 goto fail_platform_driver;
1097         }
1098
1099         ret = platform_device_add(msipf_device);
1100         if (ret)
1101                 goto fail_device_add;
1102
1103         if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1104                 ret = -EINVAL;
1105                 goto fail_scm_model_init;
1106         }
1107
1108         ret = sysfs_create_group(&msipf_device->dev.kobj,
1109                                  &msipf_attribute_group);
1110         if (ret)
1111                 goto fail_create_group;
1112
1113         if (!quirks->old_ec_model) {
1114                 if (threeg_exists)
1115                         ret = device_create_file(&msipf_device->dev,
1116                                                 &dev_attr_threeg);
1117                 if (ret)
1118                         goto fail_create_attr;
1119         } else {
1120                 ret = sysfs_create_group(&msipf_device->dev.kobj,
1121                                          &msipf_old_attribute_group);
1122                 if (ret)
1123                         goto fail_create_attr;
1124
1125                 /* Disable automatic brightness control by default because
1126                  * this module was probably loaded to do brightness control in
1127                  * software. */
1128
1129                 if (auto_brightness != 2)
1130                         set_auto_brightness(auto_brightness);
1131         }
1132
1133         pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1134
1135         return 0;
1136
1137 fail_create_attr:
1138         sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1139 fail_create_group:
1140         if (quirks->load_scm_model) {
1141                 i8042_remove_filter(msi_laptop_i8042_filter);
1142                 cancel_delayed_work_sync(&msi_rfkill_dwork);
1143                 cancel_work_sync(&msi_rfkill_work);
1144                 rfkill_cleanup();
1145         }
1146 fail_scm_model_init:
1147         platform_device_del(msipf_device);
1148 fail_device_add:
1149         platform_device_put(msipf_device);
1150 fail_platform_driver:
1151         platform_driver_unregister(&msipf_driver);
1152 fail_backlight:
1153         backlight_device_unregister(msibl_device);
1154
1155         return ret;
1156 }
1157
1158 static void __exit msi_cleanup(void)
1159 {
1160         if (quirks->load_scm_model) {
1161                 i8042_remove_filter(msi_laptop_i8042_filter);
1162                 msi_laptop_input_destroy();
1163                 cancel_delayed_work_sync(&msi_rfkill_dwork);
1164                 cancel_work_sync(&msi_rfkill_work);
1165                 rfkill_cleanup();
1166         }
1167
1168         sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1169         if (!quirks->old_ec_model && threeg_exists)
1170                 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1171         platform_device_unregister(msipf_device);
1172         platform_driver_unregister(&msipf_driver);
1173         backlight_device_unregister(msibl_device);
1174
1175         if (quirks->old_ec_model) {
1176                 /* Enable automatic brightness control again */
1177                 if (auto_brightness != 2)
1178                         set_auto_brightness(1);
1179         }
1180
1181         pr_info("driver unloaded\n");
1182 }
1183
1184 module_init(msi_init);
1185 module_exit(msi_cleanup);
1186
1187 MODULE_AUTHOR("Lennart Poettering");
1188 MODULE_DESCRIPTION("MSI Laptop Support");
1189 MODULE_VERSION(MSI_DRIVER_VERSION);
1190 MODULE_LICENSE("GPL");
1191
1192 MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1193 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1194 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1195 MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1196 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1197 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1198 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1199 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1200 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1201 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");