linux/drivers/platform/x86/msi-laptop.c
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   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
 100static int msi_laptop_resume(struct device *device);
 101#endif
 102static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
 103
 104#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
 105
 106static bool force;
 107module_param(force, bool, 0);
 108MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
 109
 110static int auto_brightness;
 111module_param(auto_brightness, int, 0);
 112MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 113
 114static 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
 120static struct input_dev *msi_laptop_input_dev;
 121
 122static int wlan_s, bluetooth_s, threeg_s;
 123static int threeg_exists;
 124static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 125
 126/* MSI laptop quirks */
 127struct 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
 152static struct quirk_entry *quirks;
 153
 154/* Hardware access */
 155
 156static 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
 170static 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
 183static 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
 196static 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
 215static 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
 247static 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
 265static 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
 283static 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
 299static int bl_get_brightness(struct backlight_device *b)
 300{
 301        return get_lcd_level();
 302}
 303
 304
 305static int bl_update_status(struct backlight_device *b)
 306{
 307        return set_lcd_level(b->props.brightness);
 308}
 309
 310static const struct backlight_ops msibl_ops = {
 311        .get_brightness = bl_get_brightness,
 312        .update_status  = bl_update_status,
 313};
 314
 315static struct backlight_device *msibl_device;
 316
 317/* Platform device */
 318
 319static 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
 337static 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
 343static 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
 361static 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
 367static 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
 384static 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
 390static 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
 403static 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
 420static 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
 433static 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
 449static 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
 463static 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
 477static 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
 491static 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
 506static 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
 520static 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
 536static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 537static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 538                   store_auto_brightness);
 539static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 540static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 541static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 542static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
 543static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
 544static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
 545static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
 546static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 547
 548static 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
 559static struct attribute *msipf_old_attributes[] = {
 560        &dev_attr_lcd_level.attr,
 561        &dev_attr_auto_brightness.attr,
 562        NULL
 563};
 564
 565static struct attribute_group msipf_attribute_group = {
 566        .attrs = msipf_attributes
 567};
 568
 569static struct attribute_group msipf_old_attribute_group = {
 570        .attrs = msipf_old_attributes
 571};
 572
 573static struct platform_driver msipf_driver = {
 574        .driver = {
 575                .name = "msi-laptop-pf",
 576                .owner = THIS_MODULE,
 577                .pm = &msi_laptop_pm,
 578        },
 579};
 580
 581static struct platform_device *msipf_device;
 582
 583/* Initialization */
 584
 585static struct quirk_entry quirk_old_ec_model = {
 586        .old_ec_model = true,
 587};
 588
 589static struct quirk_entry quirk_load_scm_model = {
 590        .load_scm_model = true,
 591        .ec_delay = true,
 592};
 593
 594static struct quirk_entry quirk_load_scm_ro_model = {
 595        .load_scm_model = true,
 596        .ec_read_only = true,
 597};
 598
 599static 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
 608static 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
 722static 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
 735static 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
 743static 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
 751static const struct rfkill_ops rfkill_bluetooth_ops = {
 752        .set_block = rfkill_bluetooth_set
 753};
 754
 755static const struct rfkill_ops rfkill_wlan_ops = {
 756        .set_block = rfkill_wlan_set
 757};
 758
 759static const struct rfkill_ops rfkill_threeg_ops = {
 760        .set_block = rfkill_threeg_set
 761};
 762
 763static 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
 781static 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
 789static 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}
 800static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
 801static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
 802
 803static 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}
 816static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
 817static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
 818
 819static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 820                                struct serio *port)
 821{
 822        static bool extended;
 823
 824        if (str & 0x20)
 825                return false;
 826
 827        /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 828        if (unlikely(data == 0xe0)) {
 829                extended = true;
 830                return false;
 831        } else if (unlikely(extended)) {
 832                extended = false;
 833                switch (data) {
 834                case 0xE4:
 835                        if (quirks->ec_delay) {
 836                                schedule_delayed_work(&msi_touchpad_dwork,
 837                                        round_jiffies_relative(0.5 * HZ));
 838                        } else
 839                                schedule_work(&msi_touchpad_work);
 840                        break;
 841                case 0x54:
 842                case 0x62:
 843                case 0x76:
 844                        if (quirks->ec_delay) {
 845                                schedule_delayed_work(&msi_rfkill_dwork,
 846                                        round_jiffies_relative(0.5 * HZ));
 847                        } else
 848                                schedule_work(&msi_rfkill_work);
 849                        break;
 850                }
 851        }
 852
 853        return false;
 854}
 855
 856static 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}
 871static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
 872
 873static 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
 923err_threeg:
 924        rfkill_destroy(rfk_threeg);
 925        if (rfk_wlan)
 926                rfkill_unregister(rfk_wlan);
 927err_wlan:
 928        rfkill_destroy(rfk_wlan);
 929        if (rfk_bluetooth)
 930                rfkill_unregister(rfk_bluetooth);
 931err_bluetooth:
 932        rfkill_destroy(rfk_bluetooth);
 933
 934        return retval;
 935}
 936
 937#ifdef CONFIG_PM_SLEEP
 938static 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
 960static 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
 983err_free_keymap:
 984        sparse_keymap_free(msi_laptop_input_dev);
 985err_free_dev:
 986        input_free_device(msi_laptop_input_dev);
 987        return err;
 988}
 989
 990static 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
 996static 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
1039fail_filter:
1040        msi_laptop_input_destroy();
1041
1042fail_input:
1043        rfkill_cleanup();
1044
1045fail_rfkill:
1046
1047        return result;
1048
1049}
1050
1051static int __init msi_init(void)
1052{
1053        int ret;
1054
1055        if (acpi_disabled)
1056                return -ENODEV;
1057
1058        dmi_check_system(msi_dmi_table);
1059        if (!quirks)
1060                /* quirks may be NULL if no match in DMI table */
1061                quirks = &quirk_load_scm_model;
1062        if (force)
1063                quirks = &quirk_old_ec_model;
1064
1065        if (!quirks->old_ec_model)
1066                get_threeg_exists();
1067
1068        if (auto_brightness < 0 || auto_brightness > 2)
1069                return -EINVAL;
1070
1071        /* Register backlight stuff */
1072
1073        if (!quirks->old_ec_model || acpi_video_backlight_support()) {
1074                pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
1075        } else {
1076                struct backlight_properties props;
1077                memset(&props, 0, sizeof(struct backlight_properties));
1078                props.type = BACKLIGHT_PLATFORM;
1079                props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1080                msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1081                                                         NULL, &msibl_ops,
1082                                                         &props);
1083                if (IS_ERR(msibl_device))
1084                        return PTR_ERR(msibl_device);
1085        }
1086
1087        ret = platform_driver_register(&msipf_driver);
1088        if (ret)
1089                goto fail_backlight;
1090
1091        /* Register platform stuff */
1092
1093        msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1094        if (!msipf_device) {
1095                ret = -ENOMEM;
1096                goto fail_platform_driver;
1097        }
1098
1099        ret = platform_device_add(msipf_device);
1100        if (ret)
1101                goto fail_device_add;
1102
1103        if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1104                ret = -EINVAL;
1105                goto fail_scm_model_init;
1106        }
1107
1108        ret = sysfs_create_group(&msipf_device->dev.kobj,
1109                                 &msipf_attribute_group);
1110        if (ret)
1111                goto fail_create_group;
1112
1113        if (!quirks->old_ec_model) {
1114                if (threeg_exists)
1115                        ret = device_create_file(&msipf_device->dev,
1116                                                &dev_attr_threeg);
1117                if (ret)
1118                        goto fail_create_attr;
1119        } else {
1120                ret = sysfs_create_group(&msipf_device->dev.kobj,
1121                                         &msipf_old_attribute_group);
1122                if (ret)
1123                        goto fail_create_attr;
1124
1125                /* Disable automatic brightness control by default because
1126                 * this module was probably loaded to do brightness control in
1127                 * software. */
1128
1129                if (auto_brightness != 2)
1130                        set_auto_brightness(auto_brightness);
1131        }
1132
1133        pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1134
1135        return 0;
1136
1137fail_create_attr:
1138        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1139fail_create_group:
1140        if (quirks->load_scm_model) {
1141                i8042_remove_filter(msi_laptop_i8042_filter);
1142                cancel_delayed_work_sync(&msi_rfkill_dwork);
1143                cancel_work_sync(&msi_rfkill_work);
1144                rfkill_cleanup();
1145        }
1146fail_scm_model_init:
1147        platform_device_del(msipf_device);
1148fail_device_add:
1149        platform_device_put(msipf_device);
1150fail_platform_driver:
1151        platform_driver_unregister(&msipf_driver);
1152fail_backlight:
1153        backlight_device_unregister(msibl_device);
1154
1155        return ret;
1156}
1157
1158static void __exit msi_cleanup(void)
1159{
1160        if (quirks->load_scm_model) {
1161                i8042_remove_filter(msi_laptop_i8042_filter);
1162                msi_laptop_input_destroy();
1163                cancel_delayed_work_sync(&msi_rfkill_dwork);
1164                cancel_work_sync(&msi_rfkill_work);
1165                rfkill_cleanup();
1166        }
1167
1168        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1169        if (!quirks->old_ec_model && threeg_exists)
1170                device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1171        platform_device_unregister(msipf_device);
1172        platform_driver_unregister(&msipf_driver);
1173        backlight_device_unregister(msibl_device);
1174
1175        if (quirks->old_ec_model) {
1176                /* Enable automatic brightness control again */
1177                if (auto_brightness != 2)
1178                        set_auto_brightness(1);
1179        }
1180
1181        pr_info("driver unloaded\n");
1182}
1183
1184module_init(msi_init);
1185module_exit(msi_cleanup);
1186
1187MODULE_AUTHOR("Lennart Poettering");
1188MODULE_DESCRIPTION("MSI Laptop Support");
1189MODULE_VERSION(MSI_DRIVER_VERSION);
1190MODULE_LICENSE("GPL");
1191
1192MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1193MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1194MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1195MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1196MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1197MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1198MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1199MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1200MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1201MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");
1202