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                 .pm = &msi_laptop_pm,
 577         },
 578 };
 579
 580 static struct platform_device *msipf_device;
 581
 582 /* Initialization */
 583
 584 static struct quirk_entry quirk_old_ec_model = {
 585         .old_ec_model = true,
 586 };
 587
 588 static struct quirk_entry quirk_load_scm_model = {
 589         .load_scm_model = true,
 590         .ec_delay = true,
 591 };
 592
 593 static struct quirk_entry quirk_load_scm_ro_model = {
 594         .load_scm_model = true,
 595         .ec_read_only = true,
 596 };
 597
 598 static int dmi_check_cb(const struct dmi_system_id *dmi)
 599 {
 600         pr_info("Identified laptop model '%s'\n", dmi->ident);
 601
 602         quirks = dmi->driver_data;
 603
 604         return 1;
 605 }
 606
 607 static struct dmi_system_id __initdata msi_dmi_table[] = {
 608         {
 609                 .ident = "MSI S270",
 610                 .matches = {
 611                         DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
 612                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 613                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 614                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 615                                   "MICRO-STAR INT'L CO.,LTD")
 616                 },
 617                 .driver_data = &quirk_old_ec_model,
 618                 .callback = dmi_check_cb
 619         },
 620         {
 621                 .ident = "MSI S271",
 622                 .matches = {
 623                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 624                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
 625                         DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
 626                         DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
 627                 },
 628                 .driver_data = &quirk_old_ec_model,
 629                 .callback = dmi_check_cb
 630         },
 631         {
 632                 .ident = "MSI S420",
 633                 .matches = {
 634                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 635                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
 636                         DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
 637                         DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
 638                 },
 639                 .driver_data = &quirk_old_ec_model,
 640                 .callback = dmi_check_cb
 641         },
 642         {
 643                 .ident = "Medion MD96100",
 644                 .matches = {
 645                         DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 646                         DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 647                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 648                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 649                                   "MICRO-STAR INT'L CO.,LTD")
 650                 },
 651                 .driver_data = &quirk_old_ec_model,
 652                 .callback = dmi_check_cb
 653         },
 654         {
 655                 .ident = "MSI N034",
 656                 .matches = {
 657                         DMI_MATCH(DMI_SYS_VENDOR,
 658                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 659                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
 660                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 661                         "MICRO-STAR INTERNATIONAL CO., LTD")
 662                 },
 663                 .driver_data = &quirk_load_scm_model,
 664                 .callback = dmi_check_cb
 665         },
 666         {
 667                 .ident = "MSI N051",
 668                 .matches = {
 669                         DMI_MATCH(DMI_SYS_VENDOR,
 670                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 671                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
 672                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 673                         "MICRO-STAR INTERNATIONAL CO., LTD")
 674                 },
 675                 .driver_data = &quirk_load_scm_model,
 676                 .callback = dmi_check_cb
 677         },
 678         {
 679                 .ident = "MSI N014",
 680                 .matches = {
 681                         DMI_MATCH(DMI_SYS_VENDOR,
 682                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 683                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
 684                 },
 685                 .driver_data = &quirk_load_scm_model,
 686                 .callback = dmi_check_cb
 687         },
 688         {
 689                 .ident = "MSI CR620",
 690                 .matches = {
 691                         DMI_MATCH(DMI_SYS_VENDOR,
 692                                 "Micro-Star International"),
 693                         DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
 694                 },
 695                 .driver_data = &quirk_load_scm_model,
 696                 .callback = dmi_check_cb
 697         },
 698         {
 699                 .ident = "MSI U270",
 700                 .matches = {
 701                         DMI_MATCH(DMI_SYS_VENDOR,
 702                                 "Micro-Star International Co., Ltd."),
 703                         DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
 704                 },
 705                 .driver_data = &quirk_load_scm_model,
 706                 .callback = dmi_check_cb
 707         },
 708         {
 709                 .ident = "MSI U90/U100",
 710                 .matches = {
 711                         DMI_MATCH(DMI_SYS_VENDOR,
 712                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 713                         DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
 714                 },
 715                 .driver_data = &quirk_load_scm_ro_model,
 716                 .callback = dmi_check_cb
 717         },
 718         { }
 719 };
 720
 721 static int rfkill_bluetooth_set(void *data, bool blocked)
 722 {
 723         /* Do something with blocked...*/
 724         /*
 725          * blocked == false is on
 726          * blocked == true is off
 727          */
 728         int result = set_device_state(blocked ? "0" : "1", 0,
 729                         MSI_STANDARD_EC_BLUETOOTH_MASK);
 730
 731         return min(result, 0);
 732 }
 733
 734 static int rfkill_wlan_set(void *data, bool blocked)
 735 {
 736         int result = set_device_state(blocked ? "0" : "1", 0,
 737                         MSI_STANDARD_EC_WLAN_MASK);
 738
 739         return min(result, 0);
 740 }
 741
 742 static int rfkill_threeg_set(void *data, bool blocked)
 743 {
 744         int result = set_device_state(blocked ? "0" : "1", 0,
 745                         MSI_STANDARD_EC_3G_MASK);
 746
 747         return min(result, 0);
 748 }
 749
 750 static const struct rfkill_ops rfkill_bluetooth_ops = {
 751         .set_block = rfkill_bluetooth_set
 752 };
 753
 754 static const struct rfkill_ops rfkill_wlan_ops = {
 755         .set_block = rfkill_wlan_set
 756 };
 757
 758 static const struct rfkill_ops rfkill_threeg_ops = {
 759         .set_block = rfkill_threeg_set
 760 };
 761
 762 static void rfkill_cleanup(void)
 763 {
 764         if (rfk_bluetooth) {
 765                 rfkill_unregister(rfk_bluetooth);
 766                 rfkill_destroy(rfk_bluetooth);
 767         }
 768
 769         if (rfk_threeg) {
 770                 rfkill_unregister(rfk_threeg);
 771                 rfkill_destroy(rfk_threeg);
 772         }
 773
 774         if (rfk_wlan) {
 775                 rfkill_unregister(rfk_wlan);
 776                 rfkill_destroy(rfk_wlan);
 777         }
 778 }
 779
 780 static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
 781 {
 782         if (quirks->ec_read_only)
 783                 return rfkill_set_hw_state(rfkill, blocked);
 784         else
 785                 return rfkill_set_sw_state(rfkill, blocked);
 786 }
 787
 788 static void msi_update_rfkill(struct work_struct *ignored)
 789 {
 790         get_wireless_state_ec_standard();
 791
 792         if (rfk_wlan)
 793                 msi_rfkill_set_state(rfk_wlan, !wlan_s);
 794         if (rfk_bluetooth)
 795                 msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
 796         if (rfk_threeg)
 797                 msi_rfkill_set_state(rfk_threeg, !threeg_s);
 798 }
 799 static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
 800 static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
 801
 802 static void msi_send_touchpad_key(struct work_struct *ignored)
 803 {
 804         u8 rdata;
 805         int result;
 806
 807         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 808         if (result < 0)
 809                 return;
 810
 811         sparse_keymap_report_event(msi_laptop_input_dev,
 812                 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
 813                 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
 814 }
 815 static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
 816 static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
 817
 818 static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 819                                 struct serio *port)
 820 {
 821         static bool extended;
 822
 823         if (str & I8042_STR_AUXDATA)
 824                 return false;
 825
 826         /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 827         if (unlikely(data == 0xe0)) {
 828                 extended = true;
 829                 return false;
 830         } else if (unlikely(extended)) {
 831                 extended = false;
 832                 switch (data) {
 833                 case 0xE4:
 834                         if (quirks->ec_delay) {
 835                                 schedule_delayed_work(&msi_touchpad_dwork,
 836                                         round_jiffies_relative(0.5 * HZ));
 837                         } else
 838                                 schedule_work(&msi_touchpad_work);
 839                         break;
 840                 case 0x54:
 841                 case 0x62:
 842                 case 0x76:
 843                         if (quirks->ec_delay) {
 844                                 schedule_delayed_work(&msi_rfkill_dwork,
 845                                         round_jiffies_relative(0.5 * HZ));
 846                         } else
 847                                 schedule_work(&msi_rfkill_work);
 848                         break;
 849                 }
 850         }
 851
 852         return false;
 853 }
 854
 855 static void msi_init_rfkill(struct work_struct *ignored)
 856 {
 857         if (rfk_wlan) {
 858                 rfkill_set_sw_state(rfk_wlan, !wlan_s);
 859                 rfkill_wlan_set(NULL, !wlan_s);
 860         }
 861         if (rfk_bluetooth) {
 862                 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
 863                 rfkill_bluetooth_set(NULL, !bluetooth_s);
 864         }
 865         if (rfk_threeg) {
 866                 rfkill_set_sw_state(rfk_threeg, !threeg_s);
 867                 rfkill_threeg_set(NULL, !threeg_s);
 868         }
 869 }
 870 static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
 871
 872 static int rfkill_init(struct platform_device *sdev)
 873 {
 874         /* add rfkill */
 875         int retval;
 876
 877         /* keep the hardware wireless state */
 878         get_wireless_state_ec_standard();
 879
 880         rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
 881                                 RFKILL_TYPE_BLUETOOTH,
 882                                 &rfkill_bluetooth_ops, NULL);
 883         if (!rfk_bluetooth) {
 884                 retval = -ENOMEM;
 885                 goto err_bluetooth;
 886         }
 887         retval = rfkill_register(rfk_bluetooth);
 888         if (retval)
 889                 goto err_bluetooth;
 890
 891         rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
 892                                 &rfkill_wlan_ops, NULL);
 893         if (!rfk_wlan) {
 894                 retval = -ENOMEM;
 895                 goto err_wlan;
 896         }
 897         retval = rfkill_register(rfk_wlan);
 898         if (retval)
 899                 goto err_wlan;
 900
 901         if (threeg_exists) {
 902                 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
 903                                 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
 904                 if (!rfk_threeg) {
 905                         retval = -ENOMEM;
 906                         goto err_threeg;
 907                 }
 908                 retval = rfkill_register(rfk_threeg);
 909                 if (retval)
 910                         goto err_threeg;
 911         }
 912
 913         /* schedule to run rfkill state initial */
 914         if (quirks->ec_delay) {
 915                 schedule_delayed_work(&msi_rfkill_init,
 916                         round_jiffies_relative(1 * HZ));
 917         } else
 918                 schedule_work(&msi_rfkill_work);
 919
 920         return 0;
 921
 922 err_threeg:
 923         rfkill_destroy(rfk_threeg);
 924         if (rfk_wlan)
 925                 rfkill_unregister(rfk_wlan);
 926 err_wlan:
 927         rfkill_destroy(rfk_wlan);
 928         if (rfk_bluetooth)
 929                 rfkill_unregister(rfk_bluetooth);
 930 err_bluetooth:
 931         rfkill_destroy(rfk_bluetooth);
 932
 933         return retval;
 934 }
 935
 936 #ifdef CONFIG_PM_SLEEP
 937 static int msi_laptop_resume(struct device *device)
 938 {
 939         u8 data;
 940         int result;
 941
 942         if (!quirks->load_scm_model)
 943                 return 0;
 944
 945         /* set load SCM to disable hardware control by fn key */
 946         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 947         if (result < 0)
 948                 return result;
 949
 950         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 951                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 952         if (result < 0)
 953                 return result;
 954
 955         return 0;
 956 }
 957 #endif
 958
 959 static int __init msi_laptop_input_setup(void)
 960 {
 961         int err;
 962
 963         msi_laptop_input_dev = input_allocate_device();
 964         if (!msi_laptop_input_dev)
 965                 return -ENOMEM;
 966
 967         msi_laptop_input_dev->name = "MSI Laptop hotkeys";
 968         msi_laptop_input_dev->phys = "msi-laptop/input0";
 969         msi_laptop_input_dev->id.bustype = BUS_HOST;
 970
 971         err = sparse_keymap_setup(msi_laptop_input_dev,
 972                 msi_laptop_keymap, NULL);
 973         if (err)
 974                 goto err_free_dev;
 975
 976         err = input_register_device(msi_laptop_input_dev);
 977         if (err)
 978                 goto err_free_keymap;
 979
 980         return 0;
 981
 982 err_free_keymap:
 983         sparse_keymap_free(msi_laptop_input_dev);
 984 err_free_dev:
 985         input_free_device(msi_laptop_input_dev);
 986         return err;
 987 }
 988
 989 static void msi_laptop_input_destroy(void)
 990 {
 991         sparse_keymap_free(msi_laptop_input_dev);
 992         input_unregister_device(msi_laptop_input_dev);
 993 }
 994
 995 static int __init load_scm_model_init(struct platform_device *sdev)
 996 {
 997         u8 data;
 998         int result;
 999
1000         if (!quirks->ec_read_only) {
1001                 /* allow userland write sysfs file  */
1002                 dev_attr_bluetooth.store = store_bluetooth;
1003                 dev_attr_wlan.store = store_wlan;
1004                 dev_attr_threeg.store = store_threeg;
1005                 dev_attr_bluetooth.attr.mode |= S_IWUSR;
1006                 dev_attr_wlan.attr.mode |= S_IWUSR;
1007                 dev_attr_threeg.attr.mode |= S_IWUSR;
1008         }
1009
1010         /* disable hardware control by fn key */
1011         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
1012         if (result < 0)
1013                 return result;
1014
1015         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
1016                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
1017         if (result < 0)
1018                 return result;
1019
1020         /* initial rfkill */
1021         result = rfkill_init(sdev);
1022         if (result < 0)
1023                 goto fail_rfkill;
1024
1025         /* setup input device */
1026         result = msi_laptop_input_setup();
1027         if (result)
1028                 goto fail_input;
1029
1030         result = i8042_install_filter(msi_laptop_i8042_filter);
1031         if (result) {
1032                 pr_err("Unable to install key filter\n");
1033                 goto fail_filter;
1034         }
1035
1036         return 0;
1037
1038 fail_filter:
1039         msi_laptop_input_destroy();
1040
1041 fail_input:
1042         rfkill_cleanup();
1043
1044 fail_rfkill:
1045
1046         return result;
1047
1048 }
1049
1050 static int __init msi_init(void)
1051 {
1052         int ret;
1053
1054         if (acpi_disabled)
1055                 return -ENODEV;
1056
1057         dmi_check_system(msi_dmi_table);
1058         if (!quirks)
1059                 /* quirks may be NULL if no match in DMI table */
1060                 quirks = &quirk_load_scm_model;
1061         if (force)
1062                 quirks = &quirk_old_ec_model;
1063
1064         if (!quirks->old_ec_model)
1065                 get_threeg_exists();
1066
1067         if (auto_brightness < 0 || auto_brightness > 2)
1068                 return -EINVAL;
1069
1070         /* Register backlight stuff */
1071
1072         if (!quirks->old_ec_model || acpi_video_backlight_support()) {
1073                 pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
1074         } else {
1075                 struct backlight_properties props;
1076                 memset(&props, 0, sizeof(struct backlight_properties));
1077                 props.type = BACKLIGHT_PLATFORM;
1078                 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1079                 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1080                                                          NULL, &msibl_ops,
1081                                                          &props);
1082                 if (IS_ERR(msibl_device))
1083                         return PTR_ERR(msibl_device);
1084         }
1085
1086         ret = platform_driver_register(&msipf_driver);
1087         if (ret)
1088                 goto fail_backlight;
1089
1090         /* Register platform stuff */
1091
1092         msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1093         if (!msipf_device) {
1094                 ret = -ENOMEM;
1095                 goto fail_platform_driver;
1096         }
1097
1098         ret = platform_device_add(msipf_device);
1099         if (ret)
1100                 goto fail_device_add;
1101
1102         if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1103                 ret = -EINVAL;
1104                 goto fail_scm_model_init;
1105         }
1106
1107         ret = sysfs_create_group(&msipf_device->dev.kobj,
1108                                  &msipf_attribute_group);
1109         if (ret)
1110                 goto fail_create_group;
1111
1112         if (!quirks->old_ec_model) {
1113                 if (threeg_exists)
1114                         ret = device_create_file(&msipf_device->dev,
1115                                                 &dev_attr_threeg);
1116                 if (ret)
1117                         goto fail_create_attr;
1118         } else {
1119                 ret = sysfs_create_group(&msipf_device->dev.kobj,
1120                                          &msipf_old_attribute_group);
1121                 if (ret)
1122                         goto fail_create_attr;
1123
1124                 /* Disable automatic brightness control by default because
1125                  * this module was probably loaded to do brightness control in
1126                  * software. */
1127
1128                 if (auto_brightness != 2)
1129                         set_auto_brightness(auto_brightness);
1130         }
1131
1132         pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1133
1134         return 0;
1135
1136 fail_create_attr:
1137         sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1138 fail_create_group:
1139         if (quirks->load_scm_model) {
1140                 i8042_remove_filter(msi_laptop_i8042_filter);
1141                 cancel_delayed_work_sync(&msi_rfkill_dwork);
1142                 cancel_work_sync(&msi_rfkill_work);
1143                 rfkill_cleanup();
1144         }
1145 fail_scm_model_init:
1146         platform_device_del(msipf_device);
1147 fail_device_add:
1148         platform_device_put(msipf_device);
1149 fail_platform_driver:
1150         platform_driver_unregister(&msipf_driver);
1151 fail_backlight:
1152         backlight_device_unregister(msibl_device);
1153
1154         return ret;
1155 }
1156
1157 static void __exit msi_cleanup(void)
1158 {
1159         if (quirks->load_scm_model) {
1160                 i8042_remove_filter(msi_laptop_i8042_filter);
1161                 msi_laptop_input_destroy();
1162                 cancel_delayed_work_sync(&msi_rfkill_dwork);
1163                 cancel_work_sync(&msi_rfkill_work);
1164                 rfkill_cleanup();
1165         }
1166
1167         sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1168         if (!quirks->old_ec_model && threeg_exists)
1169                 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1170         platform_device_unregister(msipf_device);
1171         platform_driver_unregister(&msipf_driver);
1172         backlight_device_unregister(msibl_device);
1173
1174         if (quirks->old_ec_model) {
1175                 /* Enable automatic brightness control again */
1176                 if (auto_brightness != 2)
1177                         set_auto_brightness(1);
1178         }
1179
1180         pr_info("driver unloaded\n");
1181 }
1182
1183 module_init(msi_init);
1184 module_exit(msi_cleanup);
1185
1186 MODULE_AUTHOR("Lennart Poettering");
1187 MODULE_DESCRIPTION("MSI Laptop Support");
1188 MODULE_VERSION(MSI_DRIVER_VERSION);
1189 MODULE_LICENSE("GPL");
1190
1191 MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1192 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1193 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1194 MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1195 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1196 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1197 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1198 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1199 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1200 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");