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_TOUCHPAD_ADDRESS        0xe4
  86 #define MSI_STANDARD_EC_TOUCHPAD_MASK           (1 << 4)
  87
  88 static int msi_laptop_resume(struct platform_device *device);
  89
  90 #define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
  91
  92 static int force;
  93 module_param(force, bool, 0);
  94 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
  95
  96 static int auto_brightness;
  97 module_param(auto_brightness, int, 0);
  98 MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
  99
 100 static const struct key_entry msi_laptop_keymap[] = {
 101         {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },  /* Touch Pad On */
 102         {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
 103         {KE_END, 0}
 104 };
 105
 106 static struct input_dev *msi_laptop_input_dev;
 107
 108 static bool old_ec_model;
 109 static int wlan_s, bluetooth_s, threeg_s;
 110 static int threeg_exists;
 111
 112 /* Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
 113  * those netbook will load the SCM (windows app) to disable the original
 114  * Wlan/Bluetooth control by BIOS when user press fn key, then control
 115  * Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
 116  * cann't on/off 3G module on those 3G netbook.
 117  * On Linux, msi-laptop driver will do the same thing to disable the
 118  * original BIOS control, then might need use HAL or other userland
 119  * application to do the software control that simulate with SCM.
 120  * e.g. MSI N034 netbook
 121  */
 122 static bool load_scm_model;
 123 static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 124
 125 /* Hardware access */
 126
 127 static int set_lcd_level(int level)
 128 {
 129         u8 buf[2];
 130
 131         if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
 132                 return -EINVAL;
 133
 134         buf[0] = 0x80;
 135         buf[1] = (u8) (level*31);
 136
 137         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
 138                               NULL, 0);
 139 }
 140
 141 static int get_lcd_level(void)
 142 {
 143         u8 wdata = 0, rdata;
 144         int result;
 145
 146         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 147                                 &rdata, 1);
 148         if (result < 0)
 149                 return result;
 150
 151         return (int) rdata / 31;
 152 }
 153
 154 static int get_auto_brightness(void)
 155 {
 156         u8 wdata = 4, rdata;
 157         int result;
 158
 159         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 160                                 &rdata, 1);
 161         if (result < 0)
 162                 return result;
 163
 164         return !!(rdata & 8);
 165 }
 166
 167 static int set_auto_brightness(int enable)
 168 {
 169         u8 wdata[2], rdata;
 170         int result;
 171
 172         wdata[0] = 4;
 173
 174         result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
 175                                 &rdata, 1);
 176         if (result < 0)
 177                 return result;
 178
 179         wdata[0] = 0x84;
 180         wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
 181
 182         return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
 183                               NULL, 0);
 184 }
 185
 186 static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
 187 {
 188         int status;
 189         u8 wdata = 0, rdata;
 190         int result;
 191
 192         if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
 193                 return -EINVAL;
 194
 195         /* read current device state */
 196         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 197         if (result < 0)
 198                 return -EINVAL;
 199
 200         if (!!(rdata & mask) != status) {
 201                 /* reverse device bit */
 202                 if (rdata & mask)
 203                         wdata = rdata & ~mask;
 204                 else
 205                         wdata = rdata | mask;
 206
 207                 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
 208                 if (result < 0)
 209                         return -EINVAL;
 210         }
 211
 212         return count;
 213 }
 214
 215 static int get_wireless_state(int *wlan, int *bluetooth)
 216 {
 217         u8 wdata = 0, rdata;
 218         int result;
 219
 220         result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
 221         if (result < 0)
 222                 return -1;
 223
 224         if (wlan)
 225                 *wlan = !!(rdata & 8);
 226
 227         if (bluetooth)
 228                 *bluetooth = !!(rdata & 128);
 229
 230         return 0;
 231 }
 232
 233 static int get_wireless_state_ec_standard(void)
 234 {
 235         u8 rdata;
 236         int result;
 237
 238         result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 239         if (result < 0)
 240                 return -1;
 241
 242         wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
 243
 244         bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
 245
 246         threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 247
 248         return 0;
 249 }
 250
 251 static int get_threeg_exists(void)
 252 {
 253         u8 rdata;
 254         int result;
 255
 256         result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
 257         if (result < 0)
 258                 return -1;
 259
 260         threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 261
 262         return 0;
 263 }
 264
 265 /* Backlight device stuff */
 266
 267 static int bl_get_brightness(struct backlight_device *b)
 268 {
 269         return get_lcd_level();
 270 }
 271
 272
 273 static int bl_update_status(struct backlight_device *b)
 274 {
 275         return set_lcd_level(b->props.brightness);
 276 }
 277
 278 static const struct backlight_ops msibl_ops = {
 279         .get_brightness = bl_get_brightness,
 280         .update_status  = bl_update_status,
 281 };
 282
 283 static struct backlight_device *msibl_device;
 284
 285 /* Platform device */
 286
 287 static ssize_t show_wlan(struct device *dev,
 288         struct device_attribute *attr, char *buf)
 289 {
 290
 291         int ret, enabled;
 292
 293         if (old_ec_model) {
 294                 ret = get_wireless_state(&enabled, NULL);
 295         } else {
 296                 ret = get_wireless_state_ec_standard();
 297                 enabled = wlan_s;
 298         }
 299         if (ret < 0)
 300                 return ret;
 301
 302         return sprintf(buf, "%i\n", enabled);
 303 }
 304
 305 static ssize_t store_wlan(struct device *dev,
 306         struct device_attribute *attr, const char *buf, size_t count)
 307 {
 308         return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
 309 }
 310
 311 static ssize_t show_bluetooth(struct device *dev,
 312         struct device_attribute *attr, char *buf)
 313 {
 314
 315         int ret, enabled;
 316
 317         if (old_ec_model) {
 318                 ret = get_wireless_state(NULL, &enabled);
 319         } else {
 320                 ret = get_wireless_state_ec_standard();
 321                 enabled = bluetooth_s;
 322         }
 323         if (ret < 0)
 324                 return ret;
 325
 326         return sprintf(buf, "%i\n", enabled);
 327 }
 328
 329 static ssize_t store_bluetooth(struct device *dev,
 330         struct device_attribute *attr, const char *buf, size_t count)
 331 {
 332         return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
 333 }
 334
 335 static ssize_t show_threeg(struct device *dev,
 336         struct device_attribute *attr, char *buf)
 337 {
 338
 339         int ret;
 340
 341         /* old msi ec not support 3G */
 342         if (old_ec_model)
 343                 return -1;
 344
 345         ret = get_wireless_state_ec_standard();
 346         if (ret < 0)
 347                 return ret;
 348
 349         return sprintf(buf, "%i\n", threeg_s);
 350 }
 351
 352 static ssize_t store_threeg(struct device *dev,
 353         struct device_attribute *attr, const char *buf, size_t count)
 354 {
 355         return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
 356 }
 357
 358 static ssize_t show_lcd_level(struct device *dev,
 359         struct device_attribute *attr, char *buf)
 360 {
 361
 362         int ret;
 363
 364         ret = get_lcd_level();
 365         if (ret < 0)
 366                 return ret;
 367
 368         return sprintf(buf, "%i\n", ret);
 369 }
 370
 371 static ssize_t store_lcd_level(struct device *dev,
 372         struct device_attribute *attr, const char *buf, size_t count)
 373 {
 374
 375         int level, ret;
 376
 377         if (sscanf(buf, "%i", &level) != 1 ||
 378             (level < 0 || level >= MSI_LCD_LEVEL_MAX))
 379                 return -EINVAL;
 380
 381         ret = set_lcd_level(level);
 382         if (ret < 0)
 383                 return ret;
 384
 385         return count;
 386 }
 387
 388 static ssize_t show_auto_brightness(struct device *dev,
 389         struct device_attribute *attr, char *buf)
 390 {
 391
 392         int ret;
 393
 394         ret = get_auto_brightness();
 395         if (ret < 0)
 396                 return ret;
 397
 398         return sprintf(buf, "%i\n", ret);
 399 }
 400
 401 static ssize_t store_auto_brightness(struct device *dev,
 402         struct device_attribute *attr, const char *buf, size_t count)
 403 {
 404
 405         int enable, ret;
 406
 407         if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 408                 return -EINVAL;
 409
 410         ret = set_auto_brightness(enable);
 411         if (ret < 0)
 412                 return ret;
 413
 414         return count;
 415 }
 416
 417 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 418 static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 419                    store_auto_brightness);
 420 static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 421 static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 422 static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 423
 424 static struct attribute *msipf_attributes[] = {
 425         &dev_attr_lcd_level.attr,
 426         &dev_attr_auto_brightness.attr,
 427         &dev_attr_bluetooth.attr,
 428         &dev_attr_wlan.attr,
 429         NULL
 430 };
 431
 432 static struct attribute_group msipf_attribute_group = {
 433         .attrs = msipf_attributes
 434 };
 435
 436 static struct platform_driver msipf_driver = {
 437         .driver = {
 438                 .name = "msi-laptop-pf",
 439                 .owner = THIS_MODULE,
 440         },
 441         .resume = msi_laptop_resume,
 442 };
 443
 444 static struct platform_device *msipf_device;
 445
 446 /* Initialization */
 447
 448 static int dmi_check_cb(const struct dmi_system_id *id)
 449 {
 450         pr_info("Identified laptop model '%s'\n", id->ident);
 451         return 1;
 452 }
 453
 454 static struct dmi_system_id __initdata msi_dmi_table[] = {
 455         {
 456                 .ident = "MSI S270",
 457                 .matches = {
 458                         DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
 459                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 460                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 461                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 462                                   "MICRO-STAR INT'L CO.,LTD")
 463                 },
 464                 .callback = dmi_check_cb
 465         },
 466         {
 467                 .ident = "MSI S271",
 468                 .matches = {
 469                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 470                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
 471                         DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
 472                         DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
 473                 },
 474                 .callback = dmi_check_cb
 475         },
 476         {
 477                 .ident = "MSI S420",
 478                 .matches = {
 479                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 480                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
 481                         DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
 482                         DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
 483                 },
 484                 .callback = dmi_check_cb
 485         },
 486         {
 487                 .ident = "Medion MD96100",
 488                 .matches = {
 489                         DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 490                         DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 491                         DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 492                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 493                                   "MICRO-STAR INT'L CO.,LTD")
 494                 },
 495                 .callback = dmi_check_cb
 496         },
 497         { }
 498 };
 499
 500 static struct dmi_system_id __initdata msi_load_scm_models_dmi_table[] = {
 501         {
 502                 .ident = "MSI N034",
 503                 .matches = {
 504                         DMI_MATCH(DMI_SYS_VENDOR,
 505                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 506                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
 507                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 508                         "MICRO-STAR INTERNATIONAL CO., LTD")
 509                 },
 510                 .callback = dmi_check_cb
 511         },
 512         {
 513                 .ident = "MSI N051",
 514                 .matches = {
 515                         DMI_MATCH(DMI_SYS_VENDOR,
 516                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 517                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
 518                         DMI_MATCH(DMI_CHASSIS_VENDOR,
 519                         "MICRO-STAR INTERNATIONAL CO., LTD")
 520                 },
 521                 .callback = dmi_check_cb
 522         },
 523         {
 524                 .ident = "MSI N014",
 525                 .matches = {
 526                         DMI_MATCH(DMI_SYS_VENDOR,
 527                                 "MICRO-STAR INTERNATIONAL CO., LTD"),
 528                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
 529                 },
 530                 .callback = dmi_check_cb
 531         },
 532         {
 533                 .ident = "MSI CR620",
 534                 .matches = {
 535                         DMI_MATCH(DMI_SYS_VENDOR,
 536                                 "Micro-Star International"),
 537                         DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
 538                 },
 539                 .callback = dmi_check_cb
 540         },
 541         {
 542                 .ident = "MSI U270",
 543                 .matches = {
 544                         DMI_MATCH(DMI_SYS_VENDOR,
 545                                 "Micro-Star International Co., Ltd."),
 546                         DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
 547                 },
 548                 .callback = dmi_check_cb
 549         },
 550         { }
 551 };
 552
 553 static int rfkill_bluetooth_set(void *data, bool blocked)
 554 {
 555         /* Do something with blocked...*/
 556         /*
 557          * blocked == false is on
 558          * blocked == true is off
 559          */
 560         if (blocked)
 561                 set_device_state("0", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
 562         else
 563                 set_device_state("1", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
 564
 565         return 0;
 566 }
 567
 568 static int rfkill_wlan_set(void *data, bool blocked)
 569 {
 570         if (blocked)
 571                 set_device_state("0", 0, MSI_STANDARD_EC_WLAN_MASK);
 572         else
 573                 set_device_state("1", 0, MSI_STANDARD_EC_WLAN_MASK);
 574
 575         return 0;
 576 }
 577
 578 static int rfkill_threeg_set(void *data, bool blocked)
 579 {
 580         if (blocked)
 581                 set_device_state("0", 0, MSI_STANDARD_EC_3G_MASK);
 582         else
 583                 set_device_state("1", 0, MSI_STANDARD_EC_3G_MASK);
 584
 585         return 0;
 586 }
 587
 588 static const struct rfkill_ops rfkill_bluetooth_ops = {
 589         .set_block = rfkill_bluetooth_set
 590 };
 591
 592 static const struct rfkill_ops rfkill_wlan_ops = {
 593         .set_block = rfkill_wlan_set
 594 };
 595
 596 static const struct rfkill_ops rfkill_threeg_ops = {
 597         .set_block = rfkill_threeg_set
 598 };
 599
 600 static void rfkill_cleanup(void)
 601 {
 602         if (rfk_bluetooth) {
 603                 rfkill_unregister(rfk_bluetooth);
 604                 rfkill_destroy(rfk_bluetooth);
 605         }
 606
 607         if (rfk_threeg) {
 608                 rfkill_unregister(rfk_threeg);
 609                 rfkill_destroy(rfk_threeg);
 610         }
 611
 612         if (rfk_wlan) {
 613                 rfkill_unregister(rfk_wlan);
 614                 rfkill_destroy(rfk_wlan);
 615         }
 616 }
 617
 618 static void msi_update_rfkill(struct work_struct *ignored)
 619 {
 620         get_wireless_state_ec_standard();
 621
 622         if (rfk_wlan)
 623                 rfkill_set_sw_state(rfk_wlan, !wlan_s);
 624         if (rfk_bluetooth)
 625                 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
 626         if (rfk_threeg)
 627                 rfkill_set_sw_state(rfk_threeg, !threeg_s);
 628 }
 629 static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
 630
 631 static void msi_send_touchpad_key(struct work_struct *ignored)
 632 {
 633         u8 rdata;
 634         int result;
 635
 636         result = ec_read(MSI_STANDARD_EC_TOUCHPAD_ADDRESS, &rdata);
 637         if (result < 0)
 638                 return;
 639
 640         sparse_keymap_report_event(msi_laptop_input_dev,
 641                 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
 642                 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
 643 }
 644 static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key);
 645
 646 static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 647                                 struct serio *port)
 648 {
 649         static bool extended;
 650
 651         if (str & 0x20)
 652                 return false;
 653
 654         /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 655         if (unlikely(data == 0xe0)) {
 656                 extended = true;
 657                 return false;
 658         } else if (unlikely(extended)) {
 659                 extended = false;
 660                 switch (data) {
 661                 case 0xE4:
 662                         schedule_delayed_work(&msi_touchpad_work,
 663                                 round_jiffies_relative(0.5 * HZ));
 664                         break;
 665                 case 0x54:
 666                 case 0x62:
 667                 case 0x76:
 668                         schedule_delayed_work(&msi_rfkill_work,
 669                                 round_jiffies_relative(0.5 * HZ));
 670                         break;
 671                 }
 672         }
 673
 674         return false;
 675 }
 676
 677 static void msi_init_rfkill(struct work_struct *ignored)
 678 {
 679         if (rfk_wlan) {
 680                 rfkill_set_sw_state(rfk_wlan, !wlan_s);
 681                 rfkill_wlan_set(NULL, !wlan_s);
 682         }
 683         if (rfk_bluetooth) {
 684                 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
 685                 rfkill_bluetooth_set(NULL, !bluetooth_s);
 686         }
 687         if (rfk_threeg) {
 688                 rfkill_set_sw_state(rfk_threeg, !threeg_s);
 689                 rfkill_threeg_set(NULL, !threeg_s);
 690         }
 691 }
 692 static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
 693
 694 static int rfkill_init(struct platform_device *sdev)
 695 {
 696         /* add rfkill */
 697         int retval;
 698
 699         /* keep the hardware wireless state */
 700         get_wireless_state_ec_standard();
 701
 702         rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
 703                                 RFKILL_TYPE_BLUETOOTH,
 704                                 &rfkill_bluetooth_ops, NULL);
 705         if (!rfk_bluetooth) {
 706                 retval = -ENOMEM;
 707                 goto err_bluetooth;
 708         }
 709         retval = rfkill_register(rfk_bluetooth);
 710         if (retval)
 711                 goto err_bluetooth;
 712
 713         rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
 714                                 &rfkill_wlan_ops, NULL);
 715         if (!rfk_wlan) {
 716                 retval = -ENOMEM;
 717                 goto err_wlan;
 718         }
 719         retval = rfkill_register(rfk_wlan);
 720         if (retval)
 721                 goto err_wlan;
 722
 723         if (threeg_exists) {
 724                 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
 725                                 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
 726                 if (!rfk_threeg) {
 727                         retval = -ENOMEM;
 728                         goto err_threeg;
 729                 }
 730                 retval = rfkill_register(rfk_threeg);
 731                 if (retval)
 732                         goto err_threeg;
 733         }
 734
 735         /* schedule to run rfkill state initial */
 736         schedule_delayed_work(&msi_rfkill_init,
 737                                 round_jiffies_relative(1 * HZ));
 738
 739         return 0;
 740
 741 err_threeg:
 742         rfkill_destroy(rfk_threeg);
 743         if (rfk_wlan)
 744                 rfkill_unregister(rfk_wlan);
 745 err_wlan:
 746         rfkill_destroy(rfk_wlan);
 747         if (rfk_bluetooth)
 748                 rfkill_unregister(rfk_bluetooth);
 749 err_bluetooth:
 750         rfkill_destroy(rfk_bluetooth);
 751
 752         return retval;
 753 }
 754
 755 static int msi_laptop_resume(struct platform_device *device)
 756 {
 757         u8 data;
 758         int result;
 759
 760         if (!load_scm_model)
 761                 return 0;
 762
 763         /* set load SCM to disable hardware control by fn key */
 764         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 765         if (result < 0)
 766                 return result;
 767
 768         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 769                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 770         if (result < 0)
 771                 return result;
 772
 773         return 0;
 774 }
 775
 776 static int __init msi_laptop_input_setup(void)
 777 {
 778         int err;
 779
 780         msi_laptop_input_dev = input_allocate_device();
 781         if (!msi_laptop_input_dev)
 782                 return -ENOMEM;
 783
 784         msi_laptop_input_dev->name = "MSI Laptop hotkeys";
 785         msi_laptop_input_dev->phys = "msi-laptop/input0";
 786         msi_laptop_input_dev->id.bustype = BUS_HOST;
 787
 788         err = sparse_keymap_setup(msi_laptop_input_dev,
 789                 msi_laptop_keymap, NULL);
 790         if (err)
 791                 goto err_free_dev;
 792
 793         err = input_register_device(msi_laptop_input_dev);
 794         if (err)
 795                 goto err_free_keymap;
 796
 797         return 0;
 798
 799 err_free_keymap:
 800         sparse_keymap_free(msi_laptop_input_dev);
 801 err_free_dev:
 802         input_free_device(msi_laptop_input_dev);
 803         return err;
 804 }
 805
 806 static void msi_laptop_input_destroy(void)
 807 {
 808         sparse_keymap_free(msi_laptop_input_dev);
 809         input_unregister_device(msi_laptop_input_dev);
 810 }
 811
 812 static int __init load_scm_model_init(struct platform_device *sdev)
 813 {
 814         u8 data;
 815         int result;
 816
 817         /* allow userland write sysfs file  */
 818         dev_attr_bluetooth.store = store_bluetooth;
 819         dev_attr_wlan.store = store_wlan;
 820         dev_attr_threeg.store = store_threeg;
 821         dev_attr_bluetooth.attr.mode |= S_IWUSR;
 822         dev_attr_wlan.attr.mode |= S_IWUSR;
 823         dev_attr_threeg.attr.mode |= S_IWUSR;
 824
 825         /* disable hardware control by fn key */
 826         result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 827         if (result < 0)
 828                 return result;
 829
 830         result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 831                 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 832         if (result < 0)
 833                 return result;
 834
 835         /* initial rfkill */
 836         result = rfkill_init(sdev);
 837         if (result < 0)
 838                 goto fail_rfkill;
 839
 840         /* setup input device */
 841         result = msi_laptop_input_setup();
 842         if (result)
 843                 goto fail_input;
 844
 845         result = i8042_install_filter(msi_laptop_i8042_filter);
 846         if (result) {
 847                 pr_err("Unable to install key filter\n");
 848                 goto fail_filter;
 849         }
 850
 851         return 0;
 852
 853 fail_filter:
 854         msi_laptop_input_destroy();
 855
 856 fail_input:
 857         rfkill_cleanup();
 858
 859 fail_rfkill:
 860
 861         return result;
 862
 863 }
 864
 865 static int __init msi_init(void)
 866 {
 867         int ret;
 868
 869         if (acpi_disabled)
 870                 return -ENODEV;
 871
 872         if (force || dmi_check_system(msi_dmi_table))
 873                 old_ec_model = 1;
 874
 875         if (!old_ec_model)
 876                 get_threeg_exists();
 877
 878         if (!old_ec_model && dmi_check_system(msi_load_scm_models_dmi_table))
 879                 load_scm_model = 1;
 880
 881         if (auto_brightness < 0 || auto_brightness > 2)
 882                 return -EINVAL;
 883
 884         /* Register backlight stuff */
 885
 886         if (acpi_video_backlight_support()) {
 887                 pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
 888         } else {
 889                 struct backlight_properties props;
 890                 memset(&props, 0, sizeof(struct backlight_properties));
 891                 props.type = BACKLIGHT_PLATFORM;
 892                 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
 893                 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
 894                                                          NULL, &msibl_ops,
 895                                                          &props);
 896                 if (IS_ERR(msibl_device))
 897                         return PTR_ERR(msibl_device);
 898         }
 899
 900         ret = platform_driver_register(&msipf_driver);
 901         if (ret)
 902                 goto fail_backlight;
 903
 904         /* Register platform stuff */
 905
 906         msipf_device = platform_device_alloc("msi-laptop-pf", -1);
 907         if (!msipf_device) {
 908                 ret = -ENOMEM;
 909                 goto fail_platform_driver;
 910         }
 911
 912         ret = platform_device_add(msipf_device);
 913         if (ret)
 914                 goto fail_platform_device1;
 915
 916         if (load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
 917                 ret = -EINVAL;
 918                 goto fail_platform_device1;
 919         }
 920
 921         ret = sysfs_create_group(&msipf_device->dev.kobj,
 922                                  &msipf_attribute_group);
 923         if (ret)
 924                 goto fail_platform_device2;
 925
 926         if (!old_ec_model) {
 927                 if (threeg_exists)
 928                         ret = device_create_file(&msipf_device->dev,
 929                                                 &dev_attr_threeg);
 930                 if (ret)
 931                         goto fail_platform_device2;
 932         }
 933
 934         /* Disable automatic brightness control by default because
 935          * this module was probably loaded to do brightness control in
 936          * software. */
 937
 938         if (auto_brightness != 2)
 939                 set_auto_brightness(auto_brightness);
 940
 941         pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
 942
 943         return 0;
 944
 945 fail_platform_device2:
 946
 947         if (load_scm_model) {
 948                 i8042_remove_filter(msi_laptop_i8042_filter);
 949                 cancel_delayed_work_sync(&msi_rfkill_work);
 950                 rfkill_cleanup();
 951         }
 952         platform_device_del(msipf_device);
 953
 954 fail_platform_device1:
 955
 956         platform_device_put(msipf_device);
 957
 958 fail_platform_driver:
 959
 960         platform_driver_unregister(&msipf_driver);
 961
 962 fail_backlight:
 963
 964         backlight_device_unregister(msibl_device);
 965
 966         return ret;
 967 }
 968
 969 static void __exit msi_cleanup(void)
 970 {
 971         if (load_scm_model) {
 972                 i8042_remove_filter(msi_laptop_i8042_filter);
 973                 msi_laptop_input_destroy();
 974                 cancel_delayed_work_sync(&msi_rfkill_work);
 975                 rfkill_cleanup();
 976         }
 977
 978         sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
 979         if (!old_ec_model && threeg_exists)
 980                 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
 981         platform_device_unregister(msipf_device);
 982         platform_driver_unregister(&msipf_driver);
 983         backlight_device_unregister(msibl_device);
 984
 985         /* Enable automatic brightness control again */
 986         if (auto_brightness != 2)
 987                 set_auto_brightness(1);
 988
 989         pr_info("driver unloaded\n");
 990 }
 991
 992 module_init(msi_init);
 993 module_exit(msi_cleanup);
 994
 995 MODULE_AUTHOR("Lennart Poettering");
 996 MODULE_DESCRIPTION("MSI Laptop Support");
 997 MODULE_VERSION(MSI_DRIVER_VERSION);
 998 MODULE_LICENSE("GPL");
 999
1000 MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1001 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1002 MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1003 MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1004 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1005 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1006 MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1007 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1008 MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");