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#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
 101static int msi_laptop_resume(struct device *device);
 102#endif
 103static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
 104
 105#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
 106
 107static bool force;
 108module_param(force, bool, 0);
 109MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
 110
 111static int auto_brightness;
 112module_param(auto_brightness, int, 0);
 113MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 114
 115static 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
 121static struct input_dev *msi_laptop_input_dev;
 122
 123static int wlan_s, bluetooth_s, threeg_s;
 124static int threeg_exists;
 125static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 126
 127/* MSI laptop quirks */
 128struct 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
 153static struct quirk_entry *quirks;
 154
 155/* Hardware access */
 156
 157static 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
 171static 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
 184static 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
 197static 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
 216static 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
 248static 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
 266static 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
 284static 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
 300static int bl_get_brightness(struct backlight_device *b)
 301{
 302        return get_lcd_level();
 303}
 304
 305
 306static int bl_update_status(struct backlight_device *b)
 307{
 308        return set_lcd_level(b->props.brightness);
 309}
 310
 311static const struct backlight_ops msibl_ops = {
 312        .get_brightness = bl_get_brightness,
 313        .update_status  = bl_update_status,
 314};
 315
 316static struct backlight_device *msibl_device;
 317
 318/* Platform device */
 319
 320static 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
 338static 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
 344static 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
 362static 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
 368static 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
 385static 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
 391static 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
 404static 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
 421static 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
 434static 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
 450static 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
 464static 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
 478static 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
 492static 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
 507static 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
 521static 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
 537static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 538static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 539                   store_auto_brightness);
 540static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 541static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 542static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 543static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
 544static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
 545static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
 546static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
 547static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 548
 549static 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
 560static struct attribute *msipf_old_attributes[] = {
 561        &dev_attr_lcd_level.attr,
 562        &dev_attr_auto_brightness.attr,
 563        NULL
 564};
 565
 566static const struct attribute_group msipf_attribute_group = {
 567        .attrs = msipf_attributes
 568};
 569
 570static const struct attribute_group msipf_old_attribute_group = {
 571        .attrs = msipf_old_attributes
 572};
 573
 574static struct platform_driver msipf_driver = {
 575        .driver = {
 576                .name = "msi-laptop-pf",
 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 & 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
 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_dev;
 980
 981        return 0;
 982
 983err_free_dev:
 984        input_free_device(msi_laptop_input_dev);
 985        return err;
 986}
 987
 988static int __init load_scm_model_init(struct platform_device *sdev)
 989{
 990        u8 data;
 991        int result;
 992
 993        if (!quirks->ec_read_only) {
 994                /* allow userland write sysfs file  */
 995                dev_attr_bluetooth.store = store_bluetooth;
 996                dev_attr_wlan.store = store_wlan;
 997                dev_attr_threeg.store = store_threeg;
 998                dev_attr_bluetooth.attr.mode |= S_IWUSR;
 999                dev_attr_wlan.attr.mode |= S_IWUSR;
1000                dev_attr_threeg.attr.mode |= S_IWUSR;
1001        }
1002
1003        /* disable hardware control by fn key */
1004        result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
1005        if (result < 0)
1006                return result;
1007
1008        result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
1009                data | MSI_STANDARD_EC_SCM_LOAD_MASK);
1010        if (result < 0)
1011                return result;
1012
1013        /* initial rfkill */
1014        result = rfkill_init(sdev);
1015        if (result < 0)
1016                goto fail_rfkill;
1017
1018        /* setup input device */
1019        result = msi_laptop_input_setup();
1020        if (result)
1021                goto fail_input;
1022
1023        result = i8042_install_filter(msi_laptop_i8042_filter);
1024        if (result) {
1025                pr_err("Unable to install key filter\n");
1026                goto fail_filter;
1027        }
1028
1029        return 0;
1030
1031fail_filter:
1032        input_unregister_device(msi_laptop_input_dev);
1033
1034fail_input:
1035        rfkill_cleanup();
1036
1037fail_rfkill:
1038
1039        return result;
1040
1041}
1042
1043static int __init msi_init(void)
1044{
1045        int ret;
1046
1047        if (acpi_disabled)
1048                return -ENODEV;
1049
1050        dmi_check_system(msi_dmi_table);
1051        if (!quirks)
1052                /* quirks may be NULL if no match in DMI table */
1053                quirks = &quirk_load_scm_model;
1054        if (force)
1055                quirks = &quirk_old_ec_model;
1056
1057        if (!quirks->old_ec_model)
1058                get_threeg_exists();
1059
1060        if (auto_brightness < 0 || auto_brightness > 2)
1061                return -EINVAL;
1062
1063        /* Register backlight stuff */
1064
1065        if (quirks->old_ec_model ||
1066            acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1067                struct backlight_properties props;
1068                memset(&props, 0, sizeof(struct backlight_properties));
1069                props.type = BACKLIGHT_PLATFORM;
1070                props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1071                msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1072                                                         NULL, &msibl_ops,
1073                                                         &props);
1074                if (IS_ERR(msibl_device))
1075                        return PTR_ERR(msibl_device);
1076        }
1077
1078        ret = platform_driver_register(&msipf_driver);
1079        if (ret)
1080                goto fail_backlight;
1081
1082        /* Register platform stuff */
1083
1084        msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1085        if (!msipf_device) {
1086                ret = -ENOMEM;
1087                goto fail_platform_driver;
1088        }
1089
1090        ret = platform_device_add(msipf_device);
1091        if (ret)
1092                goto fail_device_add;
1093
1094        if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1095                ret = -EINVAL;
1096                goto fail_scm_model_init;
1097        }
1098
1099        ret = sysfs_create_group(&msipf_device->dev.kobj,
1100                                 &msipf_attribute_group);
1101        if (ret)
1102                goto fail_create_group;
1103
1104        if (!quirks->old_ec_model) {
1105                if (threeg_exists)
1106                        ret = device_create_file(&msipf_device->dev,
1107                                                &dev_attr_threeg);
1108                if (ret)
1109                        goto fail_create_attr;
1110        } else {
1111                ret = sysfs_create_group(&msipf_device->dev.kobj,
1112                                         &msipf_old_attribute_group);
1113                if (ret)
1114                        goto fail_create_attr;
1115
1116                /* Disable automatic brightness control by default because
1117                 * this module was probably loaded to do brightness control in
1118                 * software. */
1119
1120                if (auto_brightness != 2)
1121                        set_auto_brightness(auto_brightness);
1122        }
1123
1124        pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1125
1126        return 0;
1127
1128fail_create_attr:
1129        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1130fail_create_group:
1131        if (quirks->load_scm_model) {
1132                i8042_remove_filter(msi_laptop_i8042_filter);
1133                cancel_delayed_work_sync(&msi_rfkill_dwork);
1134                cancel_work_sync(&msi_rfkill_work);
1135                rfkill_cleanup();
1136        }
1137fail_scm_model_init:
1138        platform_device_del(msipf_device);
1139fail_device_add:
1140        platform_device_put(msipf_device);
1141fail_platform_driver:
1142        platform_driver_unregister(&msipf_driver);
1143fail_backlight:
1144        backlight_device_unregister(msibl_device);
1145
1146        return ret;
1147}
1148
1149static void __exit msi_cleanup(void)
1150{
1151        if (quirks->load_scm_model) {
1152                i8042_remove_filter(msi_laptop_i8042_filter);
1153                input_unregister_device(msi_laptop_input_dev);
1154                cancel_delayed_work_sync(&msi_rfkill_dwork);
1155                cancel_work_sync(&msi_rfkill_work);
1156                rfkill_cleanup();
1157        }
1158
1159        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1160        if (!quirks->old_ec_model && threeg_exists)
1161                device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1162        platform_device_unregister(msipf_device);
1163        platform_driver_unregister(&msipf_driver);
1164        backlight_device_unregister(msibl_device);
1165
1166        if (quirks->old_ec_model) {
1167                /* Enable automatic brightness control again */
1168                if (auto_brightness != 2)
1169                        set_auto_brightness(1);
1170        }
1171
1172        pr_info("driver unloaded\n");
1173}
1174
1175module_init(msi_init);
1176module_exit(msi_cleanup);
1177
1178MODULE_AUTHOR("Lennart Poettering");
1179MODULE_DESCRIPTION("MSI Laptop Support");
1180MODULE_VERSION(MSI_DRIVER_VERSION);
1181MODULE_LICENSE("GPL");
1182
1183MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1184MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1185MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1186MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1187MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1188MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1189MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1190MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1191MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1192MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");
1193