linux/drivers/platform/x86/msi-laptop.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*-*-linux-c-*-*/
   3
   4/*
   5  Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
   6
   7 */
   8
   9/*
  10 * msi-laptop.c - MSI S270 laptop support. This laptop is sold under
  11 * various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
  12 *
  13 * Driver also supports S271, S420 models.
  14 *
  15 * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
  16 *
  17 *   lcd_level - Screen brightness: contains a single integer in the
  18 *   range 0..8. (rw)
  19 *
  20 *   auto_brightness - Enable automatic brightness control: contains
  21 *   either 0 or 1. If set to 1 the hardware adjusts the screen
  22 *   brightness automatically when the power cord is
  23 *   plugged/unplugged. (rw)
  24 *
  25 *   wlan - WLAN subsystem enabled: contains either 0 or 1. (ro)
  26 *
  27 *   bluetooth - Bluetooth subsystem enabled: contains either 0 or 1
  28 *   Please note that this file is constantly 0 if no Bluetooth
  29 *   hardware is available. (ro)
  30 *
  31 * In addition to these platform device attributes the driver
  32 * registers itself in the Linux backlight control subsystem and is
  33 * available to userspace under /sys/class/backlight/msi-laptop-bl/.
  34 *
  35 * This driver might work on other laptops produced by MSI. If you
  36 * want to try it you can pass force=1 as argument to the module which
  37 * will force it to load even when the DMI data doesn't identify the
  38 * laptop as MSI S270. YMMV.
  39 */
  40
  41#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  42
  43#include <linux/module.h>
  44#include <linux/kernel.h>
  45#include <linux/init.h>
  46#include <linux/acpi.h>
  47#include <linux/dmi.h>
  48#include <linux/backlight.h>
  49#include <linux/platform_device.h>
  50#include <linux/rfkill.h>
  51#include <linux/i8042.h>
  52#include <linux/input.h>
  53#include <linux/input/sparse-keymap.h>
  54#include <acpi/video.h>
  55
  56#define MSI_DRIVER_VERSION "0.5"
  57
  58#define MSI_LCD_LEVEL_MAX 9
  59
  60#define MSI_EC_COMMAND_WIRELESS 0x10
  61#define MSI_EC_COMMAND_LCD_LEVEL 0x11
  62
  63#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
  64#define MSI_STANDARD_EC_BLUETOOTH_MASK  (1 << 0)
  65#define MSI_STANDARD_EC_WEBCAM_MASK     (1 << 1)
  66#define MSI_STANDARD_EC_WLAN_MASK       (1 << 3)
  67#define MSI_STANDARD_EC_3G_MASK         (1 << 4)
  68
  69/* For set SCM load flag to disable BIOS fn key */
  70#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS        0x2d
  71#define MSI_STANDARD_EC_SCM_LOAD_MASK           (1 << 0)
  72
  73#define MSI_STANDARD_EC_FUNCTIONS_ADDRESS       0xe4
  74/* Power LED is orange - Turbo mode */
  75#define MSI_STANDARD_EC_TURBO_MASK              (1 << 1)
  76/* Power LED is green - ECO mode */
  77#define MSI_STANDARD_EC_ECO_MASK                (1 << 3)
  78/* Touchpad is turned on */
  79#define MSI_STANDARD_EC_TOUCHPAD_MASK           (1 << 4)
  80/* If this bit != bit 1, turbo mode can't be toggled */
  81#define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK     (1 << 7)
  82
  83#define MSI_STANDARD_EC_FAN_ADDRESS             0x33
  84/* If zero, fan rotates at maximal speed */
  85#define MSI_STANDARD_EC_AUTOFAN_MASK            (1 << 0)
  86
  87#ifdef CONFIG_PM_SLEEP
  88static int msi_laptop_resume(struct device *device);
  89#endif
  90static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
  91
  92#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS  0x2f
  93
  94static bool force;
  95module_param(force, bool, 0);
  96MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
  97
  98static int auto_brightness;
  99module_param(auto_brightness, int, 0);
 100MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
 101
 102static const struct key_entry msi_laptop_keymap[] = {
 103        {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },  /* Touch Pad On */
 104        {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
 105        {KE_END, 0}
 106};
 107
 108static struct input_dev *msi_laptop_input_dev;
 109
 110static int wlan_s, bluetooth_s, threeg_s;
 111static int threeg_exists;
 112static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
 113
 114/* MSI laptop quirks */
 115struct quirk_entry {
 116        bool old_ec_model;
 117
 118        /* Some MSI 3G netbook only have one fn key to control
 119         * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
 120         * disable the original Wlan/Bluetooth control by BIOS when user press
 121         * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
 122         * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
 123         * On Linux, msi-laptop driver will do the same thing to disable the
 124         * original BIOS control, then might need use HAL or other userland
 125         * application to do the software control that simulate with SCM.
 126         * e.g. MSI N034 netbook
 127         */
 128        bool load_scm_model;
 129
 130        /* Some MSI laptops need delay before reading from EC */
 131        bool ec_delay;
 132
 133        /* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
 134         * some features working (e.g. ECO mode), but we cannot change
 135         * Wlan/Bluetooth state in software and we can only read its state.
 136         */
 137        bool ec_read_only;
 138};
 139
 140static struct quirk_entry *quirks;
 141
 142/* Hardware access */
 143
 144static int set_lcd_level(int level)
 145{
 146        u8 buf[2];
 147
 148        if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
 149                return -EINVAL;
 150
 151        buf[0] = 0x80;
 152        buf[1] = (u8) (level*31);
 153
 154        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
 155                              NULL, 0);
 156}
 157
 158static int get_lcd_level(void)
 159{
 160        u8 wdata = 0, rdata;
 161        int result;
 162
 163        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
 164                                &rdata, 1);
 165        if (result < 0)
 166                return result;
 167
 168        return (int) rdata / 31;
 169}
 170
 171static int get_auto_brightness(void)
 172{
 173        u8 wdata = 4, 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 !!(rdata & 8);
 182}
 183
 184static int set_auto_brightness(int enable)
 185{
 186        u8 wdata[2], rdata;
 187        int result;
 188
 189        wdata[0] = 4;
 190
 191        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
 192                                &rdata, 1);
 193        if (result < 0)
 194                return result;
 195
 196        wdata[0] = 0x84;
 197        wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
 198
 199        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
 200                              NULL, 0);
 201}
 202
 203static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
 204{
 205        int status;
 206        u8 wdata = 0, rdata;
 207        int result;
 208
 209        if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
 210                return -EINVAL;
 211
 212        if (quirks->ec_read_only)
 213                return -EOPNOTSUPP;
 214
 215        /* read current device state */
 216        result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 217        if (result < 0)
 218                return result;
 219
 220        if (!!(rdata & mask) != status) {
 221                /* reverse device bit */
 222                if (rdata & mask)
 223                        wdata = rdata & ~mask;
 224                else
 225                        wdata = rdata | mask;
 226
 227                result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
 228                if (result < 0)
 229                        return result;
 230        }
 231
 232        return count;
 233}
 234
 235static int get_wireless_state(int *wlan, int *bluetooth)
 236{
 237        u8 wdata = 0, rdata;
 238        int result;
 239
 240        result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
 241        if (result < 0)
 242                return result;
 243
 244        if (wlan)
 245                *wlan = !!(rdata & 8);
 246
 247        if (bluetooth)
 248                *bluetooth = !!(rdata & 128);
 249
 250        return 0;
 251}
 252
 253static int get_wireless_state_ec_standard(void)
 254{
 255        u8 rdata;
 256        int result;
 257
 258        result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
 259        if (result < 0)
 260                return result;
 261
 262        wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
 263
 264        bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
 265
 266        threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 267
 268        return 0;
 269}
 270
 271static int get_threeg_exists(void)
 272{
 273        u8 rdata;
 274        int result;
 275
 276        result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
 277        if (result < 0)
 278                return result;
 279
 280        threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
 281
 282        return 0;
 283}
 284
 285/* Backlight device stuff */
 286
 287static int bl_get_brightness(struct backlight_device *b)
 288{
 289        return get_lcd_level();
 290}
 291
 292
 293static int bl_update_status(struct backlight_device *b)
 294{
 295        return set_lcd_level(b->props.brightness);
 296}
 297
 298static const struct backlight_ops msibl_ops = {
 299        .get_brightness = bl_get_brightness,
 300        .update_status  = bl_update_status,
 301};
 302
 303static struct backlight_device *msibl_device;
 304
 305/* Platform device */
 306
 307static ssize_t show_wlan(struct device *dev,
 308        struct device_attribute *attr, char *buf)
 309{
 310
 311        int ret, enabled = 0;
 312
 313        if (quirks->old_ec_model) {
 314                ret = get_wireless_state(&enabled, NULL);
 315        } else {
 316                ret = get_wireless_state_ec_standard();
 317                enabled = wlan_s;
 318        }
 319        if (ret < 0)
 320                return ret;
 321
 322        return sprintf(buf, "%i\n", enabled);
 323}
 324
 325static ssize_t store_wlan(struct device *dev,
 326        struct device_attribute *attr, const char *buf, size_t count)
 327{
 328        return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
 329}
 330
 331static ssize_t show_bluetooth(struct device *dev,
 332        struct device_attribute *attr, char *buf)
 333{
 334
 335        int ret, enabled = 0;
 336
 337        if (quirks->old_ec_model) {
 338                ret = get_wireless_state(NULL, &enabled);
 339        } else {
 340                ret = get_wireless_state_ec_standard();
 341                enabled = bluetooth_s;
 342        }
 343        if (ret < 0)
 344                return ret;
 345
 346        return sprintf(buf, "%i\n", enabled);
 347}
 348
 349static ssize_t store_bluetooth(struct device *dev,
 350        struct device_attribute *attr, const char *buf, size_t count)
 351{
 352        return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
 353}
 354
 355static ssize_t show_threeg(struct device *dev,
 356        struct device_attribute *attr, char *buf)
 357{
 358
 359        int ret;
 360
 361        /* old msi ec not support 3G */
 362        if (quirks->old_ec_model)
 363                return -ENODEV;
 364
 365        ret = get_wireless_state_ec_standard();
 366        if (ret < 0)
 367                return ret;
 368
 369        return sprintf(buf, "%i\n", threeg_s);
 370}
 371
 372static ssize_t store_threeg(struct device *dev,
 373        struct device_attribute *attr, const char *buf, size_t count)
 374{
 375        return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
 376}
 377
 378static ssize_t show_lcd_level(struct device *dev,
 379        struct device_attribute *attr, char *buf)
 380{
 381
 382        int ret;
 383
 384        ret = get_lcd_level();
 385        if (ret < 0)
 386                return ret;
 387
 388        return sprintf(buf, "%i\n", ret);
 389}
 390
 391static ssize_t store_lcd_level(struct device *dev,
 392        struct device_attribute *attr, const char *buf, size_t count)
 393{
 394
 395        int level, ret;
 396
 397        if (sscanf(buf, "%i", &level) != 1 ||
 398            (level < 0 || level >= MSI_LCD_LEVEL_MAX))
 399                return -EINVAL;
 400
 401        ret = set_lcd_level(level);
 402        if (ret < 0)
 403                return ret;
 404
 405        return count;
 406}
 407
 408static ssize_t show_auto_brightness(struct device *dev,
 409        struct device_attribute *attr, char *buf)
 410{
 411
 412        int ret;
 413
 414        ret = get_auto_brightness();
 415        if (ret < 0)
 416                return ret;
 417
 418        return sprintf(buf, "%i\n", ret);
 419}
 420
 421static ssize_t store_auto_brightness(struct device *dev,
 422        struct device_attribute *attr, const char *buf, size_t count)
 423{
 424
 425        int enable, ret;
 426
 427        if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 428                return -EINVAL;
 429
 430        ret = set_auto_brightness(enable);
 431        if (ret < 0)
 432                return ret;
 433
 434        return count;
 435}
 436
 437static ssize_t show_touchpad(struct device *dev,
 438        struct device_attribute *attr, char *buf)
 439{
 440
 441        u8 rdata;
 442        int result;
 443
 444        result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 445        if (result < 0)
 446                return result;
 447
 448        return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
 449}
 450
 451static ssize_t show_turbo(struct device *dev,
 452        struct device_attribute *attr, char *buf)
 453{
 454
 455        u8 rdata;
 456        int result;
 457
 458        result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 459        if (result < 0)
 460                return result;
 461
 462        return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
 463}
 464
 465static ssize_t show_eco(struct device *dev,
 466        struct device_attribute *attr, char *buf)
 467{
 468
 469        u8 rdata;
 470        int result;
 471
 472        result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 473        if (result < 0)
 474                return result;
 475
 476        return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
 477}
 478
 479static ssize_t show_turbo_cooldown(struct device *dev,
 480        struct device_attribute *attr, char *buf)
 481{
 482
 483        u8 rdata;
 484        int result;
 485
 486        result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 487        if (result < 0)
 488                return result;
 489
 490        return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
 491                (!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
 492}
 493
 494static ssize_t show_auto_fan(struct device *dev,
 495        struct device_attribute *attr, char *buf)
 496{
 497
 498        u8 rdata;
 499        int result;
 500
 501        result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
 502        if (result < 0)
 503                return result;
 504
 505        return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
 506}
 507
 508static ssize_t store_auto_fan(struct device *dev,
 509        struct device_attribute *attr, const char *buf, size_t count)
 510{
 511
 512        int enable, result;
 513
 514        if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
 515                return -EINVAL;
 516
 517        result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
 518        if (result < 0)
 519                return result;
 520
 521        return count;
 522}
 523
 524static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 525static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
 526                   store_auto_brightness);
 527static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
 528static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
 529static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
 530static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
 531static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
 532static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
 533static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
 534static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
 535
 536static struct attribute *msipf_attributes[] = {
 537        &dev_attr_bluetooth.attr,
 538        &dev_attr_wlan.attr,
 539        &dev_attr_touchpad.attr,
 540        &dev_attr_turbo_mode.attr,
 541        &dev_attr_eco_mode.attr,
 542        &dev_attr_turbo_cooldown.attr,
 543        &dev_attr_auto_fan.attr,
 544        NULL
 545};
 546
 547static struct attribute *msipf_old_attributes[] = {
 548        &dev_attr_lcd_level.attr,
 549        &dev_attr_auto_brightness.attr,
 550        NULL
 551};
 552
 553static const struct attribute_group msipf_attribute_group = {
 554        .attrs = msipf_attributes
 555};
 556
 557static const struct attribute_group msipf_old_attribute_group = {
 558        .attrs = msipf_old_attributes
 559};
 560
 561static struct platform_driver msipf_driver = {
 562        .driver = {
 563                .name = "msi-laptop-pf",
 564                .pm = &msi_laptop_pm,
 565        },
 566};
 567
 568static struct platform_device *msipf_device;
 569
 570/* Initialization */
 571
 572static struct quirk_entry quirk_old_ec_model = {
 573        .old_ec_model = true,
 574};
 575
 576static struct quirk_entry quirk_load_scm_model = {
 577        .load_scm_model = true,
 578        .ec_delay = true,
 579};
 580
 581static struct quirk_entry quirk_load_scm_ro_model = {
 582        .load_scm_model = true,
 583        .ec_read_only = true,
 584};
 585
 586static int dmi_check_cb(const struct dmi_system_id *dmi)
 587{
 588        pr_info("Identified laptop model '%s'\n", dmi->ident);
 589
 590        quirks = dmi->driver_data;
 591
 592        return 1;
 593}
 594
 595static const struct dmi_system_id msi_dmi_table[] __initconst = {
 596        {
 597                .ident = "MSI S270",
 598                .matches = {
 599                        DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
 600                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 601                        DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 602                        DMI_MATCH(DMI_CHASSIS_VENDOR,
 603                                  "MICRO-STAR INT'L CO.,LTD")
 604                },
 605                .driver_data = &quirk_old_ec_model,
 606                .callback = dmi_check_cb
 607        },
 608        {
 609                .ident = "MSI S271",
 610                .matches = {
 611                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 612                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
 613                        DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
 614                        DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
 615                },
 616                .driver_data = &quirk_old_ec_model,
 617                .callback = dmi_check_cb
 618        },
 619        {
 620                .ident = "MSI S420",
 621                .matches = {
 622                        DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 623                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
 624                        DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
 625                        DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
 626                },
 627                .driver_data = &quirk_old_ec_model,
 628                .callback = dmi_check_cb
 629        },
 630        {
 631                .ident = "Medion MD96100",
 632                .matches = {
 633                        DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 634                        DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 635                        DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
 636                        DMI_MATCH(DMI_CHASSIS_VENDOR,
 637                                  "MICRO-STAR INT'L CO.,LTD")
 638                },
 639                .driver_data = &quirk_old_ec_model,
 640                .callback = dmi_check_cb
 641        },
 642        {
 643                .ident = "MSI N034",
 644                .matches = {
 645                        DMI_MATCH(DMI_SYS_VENDOR,
 646                                "MICRO-STAR INTERNATIONAL CO., LTD"),
 647                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
 648                        DMI_MATCH(DMI_CHASSIS_VENDOR,
 649                        "MICRO-STAR INTERNATIONAL CO., LTD")
 650                },
 651                .driver_data = &quirk_load_scm_model,
 652                .callback = dmi_check_cb
 653        },
 654        {
 655                .ident = "MSI N051",
 656                .matches = {
 657                        DMI_MATCH(DMI_SYS_VENDOR,
 658                                "MICRO-STAR INTERNATIONAL CO., LTD"),
 659                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
 660                        DMI_MATCH(DMI_CHASSIS_VENDOR,
 661                        "MICRO-STAR INTERNATIONAL CO., LTD")
 662                },
 663                .driver_data = &quirk_load_scm_model,
 664                .callback = dmi_check_cb
 665        },
 666        {
 667                .ident = "MSI N014",
 668                .matches = {
 669                        DMI_MATCH(DMI_SYS_VENDOR,
 670                                "MICRO-STAR INTERNATIONAL CO., LTD"),
 671                        DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
 672                },
 673                .driver_data = &quirk_load_scm_model,
 674                .callback = dmi_check_cb
 675        },
 676        {
 677                .ident = "MSI CR620",
 678                .matches = {
 679                        DMI_MATCH(DMI_SYS_VENDOR,
 680                                "Micro-Star International"),
 681                        DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
 682                },
 683                .driver_data = &quirk_load_scm_model,
 684                .callback = dmi_check_cb
 685        },
 686        {
 687                .ident = "MSI U270",
 688                .matches = {
 689                        DMI_MATCH(DMI_SYS_VENDOR,
 690                                "Micro-Star International Co., Ltd."),
 691                        DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
 692                },
 693                .driver_data = &quirk_load_scm_model,
 694                .callback = dmi_check_cb
 695        },
 696        {
 697                .ident = "MSI U90/U100",
 698                .matches = {
 699                        DMI_MATCH(DMI_SYS_VENDOR,
 700                                "MICRO-STAR INTERNATIONAL CO., LTD"),
 701                        DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
 702                },
 703                .driver_data = &quirk_load_scm_ro_model,
 704                .callback = dmi_check_cb
 705        },
 706        { }
 707};
 708
 709static int rfkill_bluetooth_set(void *data, bool blocked)
 710{
 711        /* Do something with blocked...*/
 712        /*
 713         * blocked == false is on
 714         * blocked == true is off
 715         */
 716        int result = set_device_state(blocked ? "0" : "1", 0,
 717                        MSI_STANDARD_EC_BLUETOOTH_MASK);
 718
 719        return min(result, 0);
 720}
 721
 722static int rfkill_wlan_set(void *data, bool blocked)
 723{
 724        int result = set_device_state(blocked ? "0" : "1", 0,
 725                        MSI_STANDARD_EC_WLAN_MASK);
 726
 727        return min(result, 0);
 728}
 729
 730static int rfkill_threeg_set(void *data, bool blocked)
 731{
 732        int result = set_device_state(blocked ? "0" : "1", 0,
 733                        MSI_STANDARD_EC_3G_MASK);
 734
 735        return min(result, 0);
 736}
 737
 738static const struct rfkill_ops rfkill_bluetooth_ops = {
 739        .set_block = rfkill_bluetooth_set
 740};
 741
 742static const struct rfkill_ops rfkill_wlan_ops = {
 743        .set_block = rfkill_wlan_set
 744};
 745
 746static const struct rfkill_ops rfkill_threeg_ops = {
 747        .set_block = rfkill_threeg_set
 748};
 749
 750static void rfkill_cleanup(void)
 751{
 752        if (rfk_bluetooth) {
 753                rfkill_unregister(rfk_bluetooth);
 754                rfkill_destroy(rfk_bluetooth);
 755        }
 756
 757        if (rfk_threeg) {
 758                rfkill_unregister(rfk_threeg);
 759                rfkill_destroy(rfk_threeg);
 760        }
 761
 762        if (rfk_wlan) {
 763                rfkill_unregister(rfk_wlan);
 764                rfkill_destroy(rfk_wlan);
 765        }
 766}
 767
 768static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
 769{
 770        if (quirks->ec_read_only)
 771                return rfkill_set_hw_state(rfkill, blocked);
 772        else
 773                return rfkill_set_sw_state(rfkill, blocked);
 774}
 775
 776static void msi_update_rfkill(struct work_struct *ignored)
 777{
 778        get_wireless_state_ec_standard();
 779
 780        if (rfk_wlan)
 781                msi_rfkill_set_state(rfk_wlan, !wlan_s);
 782        if (rfk_bluetooth)
 783                msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
 784        if (rfk_threeg)
 785                msi_rfkill_set_state(rfk_threeg, !threeg_s);
 786}
 787static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
 788static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
 789
 790static void msi_send_touchpad_key(struct work_struct *ignored)
 791{
 792        u8 rdata;
 793        int result;
 794
 795        result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
 796        if (result < 0)
 797                return;
 798
 799        sparse_keymap_report_event(msi_laptop_input_dev,
 800                (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
 801                KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
 802}
 803static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
 804static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
 805
 806static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 807                                struct serio *port)
 808{
 809        static bool extended;
 810
 811        if (str & I8042_STR_AUXDATA)
 812                return false;
 813
 814        /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
 815        if (unlikely(data == 0xe0)) {
 816                extended = true;
 817                return false;
 818        } else if (unlikely(extended)) {
 819                extended = false;
 820                switch (data) {
 821                case 0xE4:
 822                        if (quirks->ec_delay) {
 823                                schedule_delayed_work(&msi_touchpad_dwork,
 824                                        round_jiffies_relative(0.5 * HZ));
 825                        } else
 826                                schedule_work(&msi_touchpad_work);
 827                        break;
 828                case 0x54:
 829                case 0x62:
 830                case 0x76:
 831                        if (quirks->ec_delay) {
 832                                schedule_delayed_work(&msi_rfkill_dwork,
 833                                        round_jiffies_relative(0.5 * HZ));
 834                        } else
 835                                schedule_work(&msi_rfkill_work);
 836                        break;
 837                }
 838        }
 839
 840        return false;
 841}
 842
 843static void msi_init_rfkill(struct work_struct *ignored)
 844{
 845        if (rfk_wlan) {
 846                rfkill_set_sw_state(rfk_wlan, !wlan_s);
 847                rfkill_wlan_set(NULL, !wlan_s);
 848        }
 849        if (rfk_bluetooth) {
 850                rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
 851                rfkill_bluetooth_set(NULL, !bluetooth_s);
 852        }
 853        if (rfk_threeg) {
 854                rfkill_set_sw_state(rfk_threeg, !threeg_s);
 855                rfkill_threeg_set(NULL, !threeg_s);
 856        }
 857}
 858static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
 859
 860static int rfkill_init(struct platform_device *sdev)
 861{
 862        /* add rfkill */
 863        int retval;
 864
 865        /* keep the hardware wireless state */
 866        get_wireless_state_ec_standard();
 867
 868        rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
 869                                RFKILL_TYPE_BLUETOOTH,
 870                                &rfkill_bluetooth_ops, NULL);
 871        if (!rfk_bluetooth) {
 872                retval = -ENOMEM;
 873                goto err_bluetooth;
 874        }
 875        retval = rfkill_register(rfk_bluetooth);
 876        if (retval)
 877                goto err_bluetooth;
 878
 879        rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
 880                                &rfkill_wlan_ops, NULL);
 881        if (!rfk_wlan) {
 882                retval = -ENOMEM;
 883                goto err_wlan;
 884        }
 885        retval = rfkill_register(rfk_wlan);
 886        if (retval)
 887                goto err_wlan;
 888
 889        if (threeg_exists) {
 890                rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
 891                                RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
 892                if (!rfk_threeg) {
 893                        retval = -ENOMEM;
 894                        goto err_threeg;
 895                }
 896                retval = rfkill_register(rfk_threeg);
 897                if (retval)
 898                        goto err_threeg;
 899        }
 900
 901        /* schedule to run rfkill state initial */
 902        if (quirks->ec_delay) {
 903                schedule_delayed_work(&msi_rfkill_init,
 904                        round_jiffies_relative(1 * HZ));
 905        } else
 906                schedule_work(&msi_rfkill_work);
 907
 908        return 0;
 909
 910err_threeg:
 911        rfkill_destroy(rfk_threeg);
 912        if (rfk_wlan)
 913                rfkill_unregister(rfk_wlan);
 914err_wlan:
 915        rfkill_destroy(rfk_wlan);
 916        if (rfk_bluetooth)
 917                rfkill_unregister(rfk_bluetooth);
 918err_bluetooth:
 919        rfkill_destroy(rfk_bluetooth);
 920
 921        return retval;
 922}
 923
 924#ifdef CONFIG_PM_SLEEP
 925static int msi_laptop_resume(struct device *device)
 926{
 927        u8 data;
 928        int result;
 929
 930        if (!quirks->load_scm_model)
 931                return 0;
 932
 933        /* set load SCM to disable hardware control by fn key */
 934        result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 935        if (result < 0)
 936                return result;
 937
 938        result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 939                data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 940        if (result < 0)
 941                return result;
 942
 943        return 0;
 944}
 945#endif
 946
 947static int __init msi_laptop_input_setup(void)
 948{
 949        int err;
 950
 951        msi_laptop_input_dev = input_allocate_device();
 952        if (!msi_laptop_input_dev)
 953                return -ENOMEM;
 954
 955        msi_laptop_input_dev->name = "MSI Laptop hotkeys";
 956        msi_laptop_input_dev->phys = "msi-laptop/input0";
 957        msi_laptop_input_dev->id.bustype = BUS_HOST;
 958
 959        err = sparse_keymap_setup(msi_laptop_input_dev,
 960                msi_laptop_keymap, NULL);
 961        if (err)
 962                goto err_free_dev;
 963
 964        err = input_register_device(msi_laptop_input_dev);
 965        if (err)
 966                goto err_free_dev;
 967
 968        return 0;
 969
 970err_free_dev:
 971        input_free_device(msi_laptop_input_dev);
 972        return err;
 973}
 974
 975static int __init load_scm_model_init(struct platform_device *sdev)
 976{
 977        u8 data;
 978        int result;
 979
 980        if (!quirks->ec_read_only) {
 981                /* allow userland write sysfs file  */
 982                dev_attr_bluetooth.store = store_bluetooth;
 983                dev_attr_wlan.store = store_wlan;
 984                dev_attr_threeg.store = store_threeg;
 985                dev_attr_bluetooth.attr.mode |= S_IWUSR;
 986                dev_attr_wlan.attr.mode |= S_IWUSR;
 987                dev_attr_threeg.attr.mode |= S_IWUSR;
 988        }
 989
 990        /* disable hardware control by fn key */
 991        result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
 992        if (result < 0)
 993                return result;
 994
 995        result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
 996                data | MSI_STANDARD_EC_SCM_LOAD_MASK);
 997        if (result < 0)
 998                return result;
 999
1000        /* initial rfkill */
1001        result = rfkill_init(sdev);
1002        if (result < 0)
1003                goto fail_rfkill;
1004
1005        /* setup input device */
1006        result = msi_laptop_input_setup();
1007        if (result)
1008                goto fail_input;
1009
1010        result = i8042_install_filter(msi_laptop_i8042_filter);
1011        if (result) {
1012                pr_err("Unable to install key filter\n");
1013                goto fail_filter;
1014        }
1015
1016        return 0;
1017
1018fail_filter:
1019        input_unregister_device(msi_laptop_input_dev);
1020
1021fail_input:
1022        rfkill_cleanup();
1023
1024fail_rfkill:
1025
1026        return result;
1027
1028}
1029
1030static int __init msi_init(void)
1031{
1032        int ret;
1033
1034        if (acpi_disabled)
1035                return -ENODEV;
1036
1037        dmi_check_system(msi_dmi_table);
1038        if (!quirks)
1039                /* quirks may be NULL if no match in DMI table */
1040                quirks = &quirk_load_scm_model;
1041        if (force)
1042                quirks = &quirk_old_ec_model;
1043
1044        if (!quirks->old_ec_model)
1045                get_threeg_exists();
1046
1047        if (auto_brightness < 0 || auto_brightness > 2)
1048                return -EINVAL;
1049
1050        /* Register backlight stuff */
1051
1052        if (quirks->old_ec_model ||
1053            acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1054                struct backlight_properties props;
1055                memset(&props, 0, sizeof(struct backlight_properties));
1056                props.type = BACKLIGHT_PLATFORM;
1057                props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1058                msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1059                                                         NULL, &msibl_ops,
1060                                                         &props);
1061                if (IS_ERR(msibl_device))
1062                        return PTR_ERR(msibl_device);
1063        }
1064
1065        ret = platform_driver_register(&msipf_driver);
1066        if (ret)
1067                goto fail_backlight;
1068
1069        /* Register platform stuff */
1070
1071        msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1072        if (!msipf_device) {
1073                ret = -ENOMEM;
1074                goto fail_platform_driver;
1075        }
1076
1077        ret = platform_device_add(msipf_device);
1078        if (ret)
1079                goto fail_device_add;
1080
1081        if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1082                ret = -EINVAL;
1083                goto fail_scm_model_init;
1084        }
1085
1086        ret = sysfs_create_group(&msipf_device->dev.kobj,
1087                                 &msipf_attribute_group);
1088        if (ret)
1089                goto fail_create_group;
1090
1091        if (!quirks->old_ec_model) {
1092                if (threeg_exists)
1093                        ret = device_create_file(&msipf_device->dev,
1094                                                &dev_attr_threeg);
1095                if (ret)
1096                        goto fail_create_attr;
1097        } else {
1098                ret = sysfs_create_group(&msipf_device->dev.kobj,
1099                                         &msipf_old_attribute_group);
1100                if (ret)
1101                        goto fail_create_attr;
1102
1103                /* Disable automatic brightness control by default because
1104                 * this module was probably loaded to do brightness control in
1105                 * software. */
1106
1107                if (auto_brightness != 2)
1108                        set_auto_brightness(auto_brightness);
1109        }
1110
1111        pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1112
1113        return 0;
1114
1115fail_create_attr:
1116        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1117fail_create_group:
1118        if (quirks->load_scm_model) {
1119                i8042_remove_filter(msi_laptop_i8042_filter);
1120                cancel_delayed_work_sync(&msi_rfkill_dwork);
1121                cancel_work_sync(&msi_rfkill_work);
1122                rfkill_cleanup();
1123        }
1124fail_scm_model_init:
1125        platform_device_del(msipf_device);
1126fail_device_add:
1127        platform_device_put(msipf_device);
1128fail_platform_driver:
1129        platform_driver_unregister(&msipf_driver);
1130fail_backlight:
1131        backlight_device_unregister(msibl_device);
1132
1133        return ret;
1134}
1135
1136static void __exit msi_cleanup(void)
1137{
1138        if (quirks->load_scm_model) {
1139                i8042_remove_filter(msi_laptop_i8042_filter);
1140                input_unregister_device(msi_laptop_input_dev);
1141                cancel_delayed_work_sync(&msi_rfkill_dwork);
1142                cancel_work_sync(&msi_rfkill_work);
1143                rfkill_cleanup();
1144        }
1145
1146        sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1147        if (!quirks->old_ec_model && threeg_exists)
1148                device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1149        platform_device_unregister(msipf_device);
1150        platform_driver_unregister(&msipf_driver);
1151        backlight_device_unregister(msibl_device);
1152
1153        if (quirks->old_ec_model) {
1154                /* Enable automatic brightness control again */
1155                if (auto_brightness != 2)
1156                        set_auto_brightness(1);
1157        }
1158
1159        pr_info("driver unloaded\n");
1160}
1161
1162module_init(msi_init);
1163module_exit(msi_cleanup);
1164
1165MODULE_AUTHOR("Lennart Poettering");
1166MODULE_DESCRIPTION("MSI Laptop Support");
1167MODULE_VERSION(MSI_DRIVER_VERSION);
1168MODULE_LICENSE("GPL");
1169
1170MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1171MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1172MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1173MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1174MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1175MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1176MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1177MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1178MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1179MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");
1180