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 #include <acpi/video.h>
  68
  69 #define MSI_DRIVER_VERSION "0.5"
  70
  71 #define MSI_LCD_LEVEL_MAX 9
  72
  73 #define MSI_EC_COMMAND_WIRELESS 0x10
  74 #define MSI_EC_COMMAND_LCD_LEVEL 0x11
  75
  76 #define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
  77 #define MSI_STANDARD_EC_BLUETOOTH_MASK  (1 << 0)
  78 #define MSI_STANDARD_EC_WEBCAM_MASK     (1 << 1)
  79 #define MSI_STANDARD_EC_WLAN_MASK       (1 << 3)
  80 #define MSI_STANDARD_EC_3G_MASK         (1 << 4)
  81
  82 /* For set SCM load flag to disable BIOS fn key */
  83 #define MSI_STANDARD_EC_SCM_LOAD_ADDRESS        0x2d
  84 #define MSI_STANDARD_EC_SCM_LOAD_MASK           (1 << 0)
  85
  86 #define MSI_STANDARD_EC_FUNCTIONS_ADDRESS       0xe4
  87 /* Power LED is orange - Turbo mode */
  88 #define MSI_STANDARD_EC_TURBO_MASK              (1 << 1)
  89 /* Power LED is green - ECO mode */
  90 #define MSI_STANDARD_EC_ECO_MASK                (1 << 3)
  91 /* Touchpad is turned on */
  92 #define MSI_STANDARD_EC_TOUCHPAD_MASK           (1 << 4)
  93 /* If this bit != bit 1, turbo mode can't be toggled */
  94 #define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK     (1 << 7)
  95
  96 #define MSI_STANDARD_EC_FAN_ADDRESS             0x33
  97 /* If zero, fan rotates at maximal speed */
  98 #define MSI_STANDARD_EC_AUTOFAN_MASK            (1 << 0)
  99
 100 #ifdef CONFIG_PM_SLEEP
 101 static int msi_laptop_resume(struct device *device);
 102 #endif
 103 static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
 104
 105 #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
 106
 107 static bool force;
 108 module_param(force, bool, 0);
 109 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
 110
 111 static int auto_brightness;
 112 module_param(auto_brightness, int, 0);
 113 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 114
 115 static const struct key_entry msi_laptop_keymap[] = {
 116         {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },  /* Touch Pad On */
 117         {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
 118         {KE_END, 0}
 119 };
 120
 121 static struct input_dev *msi_laptop_input_dev;
 122
 123 static int wlan_s, bluetooth_s, threeg_s;
 124 static int threeg_exists;
 125 static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 126
 127 /* MSI laptop quirks */
 128 struct quirk_entry {
 129         bool old_ec_model;
 130
 131         /* Some MSI 3G netbook only have one fn key to control
 132          * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
 133          * disable the original Wlan/Bluetooth control by BIOS when user press
 134          * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
 135          * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
 136          * On Linux, msi-laptop driver will do the same thing to disable the
 137          * original BIOS control, then might need use HAL or other userland
 138          * application to do the software control that simulate with SCM.
 139          * e.g. MSI N034 netbook
 140          */
 141         bool load_scm_model;
 142
 143         /* Some MSI laptops need delay before reading from EC */
 144         bool ec_delay;
 145
 146         /* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
 147          * some features working (e.g. ECO mode), but we cannot change
 148          * Wlan/Bluetooth state in software and we can only read its state.
 149          */
 150         bool ec_read_only;
 151 };
 152
 153 static struct quirk_entry *quirks;
 154
 155 /* Hardware access */
 156
 157 static int set_lcd_level(int level)
 158 {
 159         u8 buf[2];
 160
 161         if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
 162                 return -EINVAL;
 163
 164         buf[0] = 0x80;
 165         buf[1] = (u8) (level*31);
 166
 167         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
 168                               NULL, 0);
 169 }
 170
 171 static int get_lcd_level(void)
 172 {
 173         u8 wdata = 0, rdata;
 174         int result;
 175
 176         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 177                                 &rdata, 1);
 178         if (result < 0)
 179                 return result;
 180
 181         return (int) rdata / 31;
 182 }
 183
 184 static int get_auto_brightness(void)
 185 {
 186         u8 wdata = 4, rdata;
 187         int result;
 188
 189         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 190                                 &rdata, 1);
 191         if (result < 0)
 192                 return result;
 193
 194         return !!(rdata & 8);
 195 }
 196
 197 static int set_auto_brightness(int enable)
 198 {
 199         u8 wdata[2], rdata;
 200         int result;
 201
 202         wdata[0] = 4;
 203
 204         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
 205                                 &rdata, 1);
 206         if (result < 0)
 207                 return result;
 208
 209         wdata[0] = 0x84;
 210         wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
 211
 212         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
 213                               NULL, 0);
 214 }
 215
 216 static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
 217 {
 218         int status;
 219         u8 wdata = 0, rdata;
 220         int result;
 221
 222         if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
 223                 return -EINVAL;
 224
 225         if (quirks->ec_read_only)
 226                 return -EOPNOTSUPP;
 227
 228         /* read current device state */
 229         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 230         if (result < 0)
 231                 return result;
 232
 233         if (!!(rdata & mask) != status) {
 234                 /* reverse device bit */
 235                 if (rdata & mask)
 236                         wdata = rdata & ~mask;
 237                 else
 238                         wdata = rdata | mask;
 239
 240                 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
 241                 if (result < 0)
 242                         return result;
 243         }
 244
 245         return count;
 246 }
 247
 248 static int get_wireless_state(int *wlan, int *bluetooth)
 249 {
 250         u8 wdata = 0, rdata;
 251         int result;
 252
 253         result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
 254         if (result < 0)
 255                 return result;
 256
 257         if (wlan)
 258                 *wlan = !!(rdata & 8);
 259
 260         if (bluetooth)
 261                 *bluetooth = !!(rdata & 128);
 262
 263         return 0;
 264 }
 265
 266 static int get_wireless_state_ec_standard(void)
 267 {
 268         u8 rdata;
 269         int result;
 270
 271         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 272         if (result < 0)
 273                 return result;
 274
 275         wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
 276
 277         bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
 278
 279         threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 280
 281         return 0;
 282 }
 283
 284 static int get_threeg_exists(void)
 285 {
 286         u8 rdata;
 287         int result;
 288
 289         result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
 290         if (result < 0)
 291                 return result;
 292
 293         threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 294
 295         return 0;
 296 }
 297
 298 /* Backlight device stuff */
 299
 300 static int bl_get_brightness(struct backlight_device *b)
 301 {
 302         return get_lcd_level();
 303 }
 304
 305
 306 static int bl_update_status(struct backlight_device *b)
 307 {
 308         return set_lcd_level(b->props.brightness);
 309 }
 310
 311 static const struct backlight_ops msibl_ops = {
 312         .get_brightness = bl_get_brightness,
 313         .update_status  = bl_update_status,
 314 };
 315
 316 static struct backlight_device *msibl_device;
 317
 318 /* Platform device */
 319
 320 static ssize_t show_wlan(struct device *dev,
 321         struct device_attribute *attr, char *buf)
 322 {
 323
 324         int ret, enabled = 0;
 325
 326         if (quirks->old_ec_model) {
 327                 ret = get_wireless_state(&enabled, NULL);
 328         } else {
 329                 ret = get_wireless_state_ec_standard();
 330                 enabled = wlan_s;
 331         }
 332         if (ret < 0)
 333                 return ret;
 334
 335         return sprintf(buf, "%i\n", enabled);
 336 }
 337
 338 static ssize_t store_wlan(struct device *dev,
 339         struct device_attribute *attr, const char *buf, size_t count)
 340 {
 341         return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
 342 }
 343
 344 static ssize_t show_bluetooth(struct device *dev,
 345         struct device_attribute *attr, char *buf)
 346 {
 347
 348         int ret, enabled = 0;
 349
 350         if (quirks->old_ec_model) {
 351                 ret = get_wireless_state(NULL, &enabled);
 352         } else {
 353                 ret = get_wireless_state_ec_standard();
 354                 enabled = bluetooth_s;
 355         }
 356         if (ret < 0)
 357                 return ret;
 358
 359         return sprintf(buf, "%i\n", enabled);
 360 }
 361
 362 static ssize_t store_bluetooth(struct device *dev,
 363         struct device_attribute *attr, const char *buf, size_t count)
 364 {
 365         return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
 366 }
 367
 368 static ssize_t show_threeg(struct device *dev,
 369         struct device_attribute *attr, char *buf)
 370 {
 371
 372         int ret;
 373
 374         /* old msi ec not support 3G */
 375         if (quirks->old_ec_model)
 376                 return -ENODEV;
 377
 378         ret = get_wireless_state_ec_standard();
 379         if (ret < 0)
 380                 return ret;
 381
 382         return sprintf(buf, "%i\n", threeg_s);
 383 }
 384
 385 static ssize_t store_threeg(struct device *dev,
 386         struct device_attribute *attr, const char *buf, size_t count)
 387 {
 388         return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
 389 }
 390
 391 static ssize_t show_lcd_level(struct device *dev,
 392         struct device_attribute *attr, char *buf)
 393 {
 394
 395         int ret;
 396
 397         ret = get_lcd_level();
 398         if (ret < 0)
 399                 return ret;
 400
 401         return sprintf(buf, "%i\n", ret);
 402 }
 403
 404 static ssize_t store_lcd_level(struct device *dev,
 405         struct device_attribute *attr, const char *buf, size_t count)
 406 {
 407
 408         int level, ret;
 409
 410         if (sscanf(buf, "%i", &level) != 1 ||
 411             (level < 0 || level >= MSI_LCD_LEVEL_MAX))
 412                 return -EINVAL;
 413
 414         ret = set_lcd_level(level);
 415         if (ret < 0)
 416                 return ret;
 417
 418         return count;
 419 }
 420
 421 static ssize_t show_auto_brightness(struct device *dev,
 422         struct device_attribute *attr, char *buf)
 423 {
 424
 425         int ret;
 426
 427         ret = get_auto_brightness();
 428         if (ret < 0)
 429                 return ret;
 430
 431         return sprintf(buf, "%i\n", ret);
 432 }
 433
 434 static ssize_t store_auto_brightness(struct device *dev,
 435         struct device_attribute *attr, const char *buf, size_t count)
 436 {
 437
 438         int enable, ret;
 439
 440         if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 441                 return -EINVAL;
 442
 443         ret = set_auto_brightness(enable);
 444         if (ret < 0)
 445                 return ret;
 446
 447         return count;
 448 }
 449
 450 static ssize_t show_touchpad(struct device *dev,
 451         struct device_attribute *attr, char *buf)
 452 {
 453
 454         u8 rdata;
 455         int result;
 456
 457         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 458         if (result < 0)
 459                 return result;
 460
 461         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
 462 }
 463
 464 static ssize_t show_turbo(struct device *dev,
 465         struct device_attribute *attr, char *buf)
 466 {
 467
 468         u8 rdata;
 469         int result;
 470
 471         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 472         if (result < 0)
 473                 return result;
 474
 475         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
 476 }
 477
 478 static ssize_t show_eco(struct device *dev,
 479         struct device_attribute *attr, char *buf)
 480 {
 481
 482         u8 rdata;
 483         int result;
 484
 485         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 486         if (result < 0)
 487                 return result;
 488
 489         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
 490 }
 491
 492 static ssize_t show_turbo_cooldown(struct device *dev,
 493         struct device_attribute *attr, char *buf)
 494 {
 495
 496         u8 rdata;
 497         int result;
 498
 499         result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 500         if (result < 0)
 501                 return result;
 502
 503         return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
 504                 (!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
 505 }
 506
 507 static ssize_t show_auto_fan(struct device *dev,
 508         struct device_attribute *attr, char *buf)
 509 {
 510
 511         u8 rdata;
 512         int result;
 513
 514         result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
 515         if (result < 0)
 516                 return result;
 517
 518         return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
 519 }
 520
 521 static ssize_t store_auto_fan(struct device *dev,
 522         struct device_attribute *attr, const char *buf, size_t count)
 523 {
 524
 525         int enable, result;
 526
 527         if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 528                 return -EINVAL;
 529
 530         result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
 531         if (result < 0)
 532                 return result;
 533
 534         return count;
 535 }
 536
 537 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 538 static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 539                    store_auto_brightness);
 540 static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 541 static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 542 static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 543 static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
 544 static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
 545 static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
 546 static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
 547 static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 548
 549 static struct attribute *msipf_attributes[] = {
 550         &dev_attr_bluetooth.attr,
 551         &dev_attr_wlan.attr,
 552         &dev_attr_touchpad.attr,
 553         &dev_attr_turbo_mode.attr,
 554         &dev_attr_eco_mode.attr,
 555         &dev_attr_turbo_cooldown.attr,
 556         &dev_attr_auto_fan.attr,
 557         NULL
 558 };
 559
 560 static struct attribute *msipf_old_attributes[] = {
 561         &dev_attr_lcd_level.attr,
 562         &dev_attr_auto_brightness.attr,
 563         NULL
 564 };
 565
 566 static struct attribute_group msipf_attribute_group = {
 567         .attrs = msipf_attributes
 568 };
 569
 570 static struct attribute_group msipf_old_attribute_group = {
 571         .attrs = msipf_old_attributes
 572 };
 573
 574 static struct platform_driver msipf_driver = {
 575         .driver = {
 576                 .name = "msi-laptop-pf",
 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 & I8042_STR_AUXDATA)
 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 ||
1074             acpi_video_get_backlight_type() == acpi_backlight_vendor) {
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:*");