drivers/platform/x86/toshiba_acpi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
   4  *
   5  *  Copyright (C) 2002-2004 John Belmonte
   6  *  Copyright (C) 2008 Philip Langdale
   7  *  Copyright (C) 2010 Pierre Ducroquet
   8  *  Copyright (C) 2014-2016 Azael Avalos
   9  *
  10  *  The devolpment page for this driver is located at
  11  *  http://memebeam.org/toys/ToshibaAcpiDriver.
  12  *
  13  *  Credits:
  14  *      Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
  15  *              engineering the Windows drivers
  16  *      Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
  17  *      Rob Miller - TV out and hotkeys help
  18  */
  19
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #define TOSHIBA_ACPI_VERSION    "0.24"
  23 #define PROC_INTERFACE_VERSION  1
  24
  25 #include <linux/compiler.h>
  26 #include <linux/kernel.h>
  27 #include <linux/module.h>
  28 #include <linux/moduleparam.h>
  29 #include <linux/init.h>
  30 #include <linux/types.h>
  31 #include <linux/proc_fs.h>
  32 #include <linux/seq_file.h>
  33 #include <linux/backlight.h>
  34 #include <linux/input.h>
  35 #include <linux/input/sparse-keymap.h>
  36 #include <linux/leds.h>
  37 #include <linux/slab.h>
  38 #include <linux/workqueue.h>
  39 #include <linux/i8042.h>
  40 #include <linux/acpi.h>
  41 #include <linux/dmi.h>
  42 #include <linux/uaccess.h>
  43 #include <linux/miscdevice.h>
  44 #include <linux/rfkill.h>
  45 #include <linux/iio/iio.h>
  46 #include <linux/toshiba.h>
  47 #include <acpi/video.h>
  48
  49 MODULE_AUTHOR("John Belmonte");
  50 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  51 MODULE_LICENSE("GPL");
  52
  53 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  54
  55 /* Scan code for Fn key on TOS1900 models */
  56 #define TOS1900_FN_SCAN         0x6e
  57
  58 /* Toshiba ACPI method paths */
  59 #define METHOD_VIDEO_OUT        "\\_SB_.VALX.DSSX"
  60
  61 /*
  62  * The Toshiba configuration interface is composed of the HCI and the SCI,
  63  * which are defined as follows:
  64  *
  65  * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  66  * be uniform across all their models.  Ideally we would just call
  67  * dedicated ACPI methods instead of using this primitive interface.
  68  * However the ACPI methods seem to be incomplete in some areas (for
  69  * example they allow setting, but not reading, the LCD brightness value),
  70  * so this is still useful.
  71  *
  72  * SCI stands for "System Configuration Interface" which aim is to
  73  * conceal differences in hardware between different models.
  74  */
  75
  76 #define TCI_WORDS                       6
  77
  78 /* Operations */
  79 #define HCI_SET                         0xff00
  80 #define HCI_GET                         0xfe00
  81 #define SCI_OPEN                        0xf100
  82 #define SCI_CLOSE                       0xf200
  83 #define SCI_GET                         0xf300
  84 #define SCI_SET                         0xf400
  85
  86 /* Return codes */
  87 #define TOS_SUCCESS                     0x0000
  88 #define TOS_SUCCESS2                    0x0001
  89 #define TOS_OPEN_CLOSE_OK               0x0044
  90 #define TOS_FAILURE                     0x1000
  91 #define TOS_NOT_SUPPORTED               0x8000
  92 #define TOS_ALREADY_OPEN                0x8100
  93 #define TOS_NOT_OPENED                  0x8200
  94 #define TOS_INPUT_DATA_ERROR            0x8300
  95 #define TOS_WRITE_PROTECTED             0x8400
  96 #define TOS_NOT_PRESENT                 0x8600
  97 #define TOS_FIFO_EMPTY                  0x8c00
  98 #define TOS_DATA_NOT_AVAILABLE          0x8d20
  99 #define TOS_NOT_INITIALIZED             0x8d50
 100 #define TOS_NOT_INSTALLED               0x8e00
 101
 102 /* Registers */
 103 #define HCI_FAN                         0x0004
 104 #define HCI_TR_BACKLIGHT                0x0005
 105 #define HCI_SYSTEM_EVENT                0x0016
 106 #define HCI_VIDEO_OUT                   0x001c
 107 #define HCI_HOTKEY_EVENT                0x001e
 108 #define HCI_LCD_BRIGHTNESS              0x002a
 109 #define HCI_WIRELESS                    0x0056
 110 #define HCI_ACCELEROMETER               0x006d
 111 #define HCI_COOLING_METHOD              0x007f
 112 #define HCI_KBD_ILLUMINATION            0x0095
 113 #define HCI_ECO_MODE                    0x0097
 114 #define HCI_ACCELEROMETER2              0x00a6
 115 #define HCI_SYSTEM_INFO                 0xc000
 116 #define SCI_PANEL_POWER_ON              0x010d
 117 #define SCI_ILLUMINATION                0x014e
 118 #define SCI_USB_SLEEP_CHARGE            0x0150
 119 #define SCI_KBD_ILLUM_STATUS            0x015c
 120 #define SCI_USB_SLEEP_MUSIC             0x015e
 121 #define SCI_USB_THREE                   0x0169
 122 #define SCI_TOUCHPAD                    0x050e
 123 #define SCI_KBD_FUNCTION_KEYS           0x0522
 124
 125 /* Field definitions */
 126 #define HCI_ACCEL_MASK                  0x7fff
 127 #define HCI_ACCEL_DIRECTION_MASK        0x8000
 128 #define HCI_HOTKEY_DISABLE              0x0b
 129 #define HCI_HOTKEY_ENABLE               0x09
 130 #define HCI_HOTKEY_SPECIAL_FUNCTIONS    0x10
 131 #define HCI_LCD_BRIGHTNESS_BITS         3
 132 #define HCI_LCD_BRIGHTNESS_SHIFT        (16-HCI_LCD_BRIGHTNESS_BITS)
 133 #define HCI_LCD_BRIGHTNESS_LEVELS       (1 << HCI_LCD_BRIGHTNESS_BITS)
 134 #define HCI_MISC_SHIFT                  0x10
 135 #define HCI_SYSTEM_TYPE1                0x10
 136 #define HCI_SYSTEM_TYPE2                0x11
 137 #define HCI_VIDEO_OUT_LCD               0x1
 138 #define HCI_VIDEO_OUT_CRT               0x2
 139 #define HCI_VIDEO_OUT_TV                0x4
 140 #define SCI_KBD_MODE_MASK               0x1f
 141 #define SCI_KBD_MODE_FNZ                0x1
 142 #define SCI_KBD_MODE_AUTO               0x2
 143 #define SCI_KBD_MODE_ON                 0x8
 144 #define SCI_KBD_MODE_OFF                0x10
 145 #define SCI_KBD_TIME_MAX                0x3c001a
 146 #define HCI_WIRELESS_STATUS             0x1
 147 #define HCI_WIRELESS_WWAN               0x3
 148 #define HCI_WIRELESS_WWAN_STATUS        0x2000
 149 #define HCI_WIRELESS_WWAN_POWER         0x4000
 150 #define SCI_USB_CHARGE_MODE_MASK        0xff
 151 #define SCI_USB_CHARGE_DISABLED         0x00
 152 #define SCI_USB_CHARGE_ALTERNATE        0x09
 153 #define SCI_USB_CHARGE_TYPICAL          0x11
 154 #define SCI_USB_CHARGE_AUTO             0x21
 155 #define SCI_USB_CHARGE_BAT_MASK         0x7
 156 #define SCI_USB_CHARGE_BAT_LVL_OFF      0x1
 157 #define SCI_USB_CHARGE_BAT_LVL_ON       0x4
 158 #define SCI_USB_CHARGE_BAT_LVL          0x0200
 159 #define SCI_USB_CHARGE_RAPID_DSP        0x0300
 160
 161 struct toshiba_acpi_dev {
 162         struct acpi_device *acpi_dev;
 163         const char *method_hci;
 164         struct input_dev *hotkey_dev;
 165         struct work_struct hotkey_work;
 166         struct backlight_device *backlight_dev;
 167         struct led_classdev led_dev;
 168         struct led_classdev kbd_led;
 169         struct led_classdev eco_led;
 170         struct miscdevice miscdev;
 171         struct rfkill *wwan_rfk;
 172         struct iio_dev *indio_dev;
 173
 174         int force_fan;
 175         int last_key_event;
 176         int key_event_valid;
 177         int kbd_type;
 178         int kbd_mode;
 179         int kbd_time;
 180         int usbsc_bat_level;
 181         int usbsc_mode_base;
 182         int hotkey_event_type;
 183         int max_cooling_method;
 184
 185         unsigned int illumination_supported:1;
 186         unsigned int video_supported:1;
 187         unsigned int fan_supported:1;
 188         unsigned int system_event_supported:1;
 189         unsigned int ntfy_supported:1;
 190         unsigned int info_supported:1;
 191         unsigned int tr_backlight_supported:1;
 192         unsigned int kbd_illum_supported:1;
 193         unsigned int touchpad_supported:1;
 194         unsigned int eco_supported:1;
 195         unsigned int accelerometer_supported:1;
 196         unsigned int usb_sleep_charge_supported:1;
 197         unsigned int usb_rapid_charge_supported:1;
 198         unsigned int usb_sleep_music_supported:1;
 199         unsigned int kbd_function_keys_supported:1;
 200         unsigned int panel_power_on_supported:1;
 201         unsigned int usb_three_supported:1;
 202         unsigned int wwan_supported:1;
 203         unsigned int cooling_method_supported:1;
 204         unsigned int sysfs_created:1;
 205         unsigned int special_functions;
 206
 207         bool kbd_event_generated;
 208         bool killswitch;
 209 };
 210
 211 static struct toshiba_acpi_dev *toshiba_acpi;
 212
 213 static bool disable_hotkeys;
 214 module_param(disable_hotkeys, bool, 0444);
 215 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 216
 217 static const struct acpi_device_id toshiba_device_ids[] = {
 218         {"TOS6200", 0},
 219         {"TOS6207", 0},
 220         {"TOS6208", 0},
 221         {"TOS1900", 0},
 222         {"", 0},
 223 };
 224 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 225
 226 static const struct key_entry toshiba_acpi_keymap[] = {
 227         { KE_KEY, 0x9e, { KEY_RFKILL } },
 228         { KE_KEY, 0x101, { KEY_MUTE } },
 229         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 230         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 231         { KE_KEY, 0x10f, { KEY_TAB } },
 232         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 233         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 234         { KE_KEY, 0x13b, { KEY_COFFEE } },
 235         { KE_KEY, 0x13c, { KEY_BATTERY } },
 236         { KE_KEY, 0x13d, { KEY_SLEEP } },
 237         { KE_KEY, 0x13e, { KEY_SUSPEND } },
 238         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 239         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 240         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 241         { KE_KEY, 0x142, { KEY_WLAN } },
 242         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 243         { KE_KEY, 0x17f, { KEY_FN } },
 244         { KE_KEY, 0xb05, { KEY_PROG2 } },
 245         { KE_KEY, 0xb06, { KEY_WWW } },
 246         { KE_KEY, 0xb07, { KEY_MAIL } },
 247         { KE_KEY, 0xb30, { KEY_STOP } },
 248         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 249         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
 250         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 251         { KE_KEY, 0xb5a, { KEY_MEDIA } },
 252         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 253         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 254         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 255         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 256         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 257         { KE_END, 0 },
 258 };
 259
 260 static const struct key_entry toshiba_acpi_alt_keymap[] = {
 261         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 262         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 263         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 264         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 265         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 266         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 267         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 268         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 269         { KE_KEY, 0x157, { KEY_MUTE } },
 270         { KE_KEY, 0x158, { KEY_WLAN } },
 271         { KE_END, 0 },
 272 };
 273
 274 /*
 275  * List of models which have a broken acpi-video backlight interface and thus
 276  * need to use the toshiba (vendor) interface instead.
 277  */
 278 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 279         {}
 280 };
 281
 282 /*
 283  * Utility
 284  */
 285
 286 static inline void _set_bit(u32 *word, u32 mask, int value)
 287 {
 288         *word = (*word & ~mask) | (mask * value);
 289 }
 290
 291 /*
 292  * ACPI interface wrappers
 293  */
 294
 295 static int write_acpi_int(const char *methodName, int val)
 296 {
 297         acpi_status status;
 298
 299         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 300         return (status == AE_OK) ? 0 : -EIO;
 301 }
 302
 303 /*
 304  * Perform a raw configuration call.  Here we don't care about input or output
 305  * buffer format.
 306  */
 307 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 308                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 309 {
 310         union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 311         struct acpi_object_list params;
 312         struct acpi_buffer results;
 313         acpi_status status;
 314         int i;
 315
 316         params.count = TCI_WORDS;
 317         params.pointer = in_objs;
 318         for (i = 0; i < TCI_WORDS; ++i) {
 319                 in_objs[i].type = ACPI_TYPE_INTEGER;
 320                 in_objs[i].integer.value = in[i];
 321         }
 322
 323         results.length = sizeof(out_objs);
 324         results.pointer = out_objs;
 325
 326         status = acpi_evaluate_object(dev->acpi_dev->handle,
 327                                       (char *)dev->method_hci, &params,
 328                                       &results);
 329         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 330                 for (i = 0; i < out_objs->package.count; ++i)
 331                         out[i] = out_objs->package.elements[i].integer.value;
 332         }
 333
 334         return status;
 335 }
 336
 337 /*
 338  * Common hci tasks
 339  *
 340  * In addition to the ACPI status, the HCI system returns a result which
 341  * may be useful (such as "not supported").
 342  */
 343
 344 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 345 {
 346         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 347         u32 out[TCI_WORDS];
 348         acpi_status status = tci_raw(dev, in, out);
 349
 350         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 351 }
 352
 353 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 354 {
 355         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 356         u32 out[TCI_WORDS];
 357         acpi_status status = tci_raw(dev, in, out);
 358
 359         if (ACPI_FAILURE(status))
 360                 return TOS_FAILURE;
 361
 362         *out1 = out[2];
 363
 364         return out[0];
 365 }
 366
 367 /*
 368  * Common sci tasks
 369  */
 370
 371 static int sci_open(struct toshiba_acpi_dev *dev)
 372 {
 373         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 374         u32 out[TCI_WORDS];
 375         acpi_status status = tci_raw(dev, in, out);
 376
 377         if  (ACPI_FAILURE(status)) {
 378                 pr_err("ACPI call to open SCI failed\n");
 379                 return 0;
 380         }
 381
 382         if (out[0] == TOS_OPEN_CLOSE_OK) {
 383                 return 1;
 384         } else if (out[0] == TOS_ALREADY_OPEN) {
 385                 pr_info("Toshiba SCI already opened\n");
 386                 return 1;
 387         } else if (out[0] == TOS_NOT_SUPPORTED) {
 388                 /*
 389                  * Some BIOSes do not have the SCI open/close functions
 390                  * implemented and return 0x8000 (Not Supported), failing to
 391                  * register some supported features.
 392                  *
 393                  * Simply return 1 if we hit those affected laptops to make the
 394                  * supported features work.
 395                  *
 396                  * In the case that some laptops really do not support the SCI,
 397                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 398                  * and thus, not registering support for the queried feature.
 399                  */
 400                 return 1;
 401         } else if (out[0] == TOS_NOT_PRESENT) {
 402                 pr_info("Toshiba SCI is not present\n");
 403         }
 404
 405         return 0;
 406 }
 407
 408 static void sci_close(struct toshiba_acpi_dev *dev)
 409 {
 410         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 411         u32 out[TCI_WORDS];
 412         acpi_status status = tci_raw(dev, in, out);
 413
 414         if (ACPI_FAILURE(status)) {
 415                 pr_err("ACPI call to close SCI failed\n");
 416                 return;
 417         }
 418
 419         if (out[0] == TOS_OPEN_CLOSE_OK)
 420                 return;
 421         else if (out[0] == TOS_NOT_OPENED)
 422                 pr_info("Toshiba SCI not opened\n");
 423         else if (out[0] == TOS_NOT_PRESENT)
 424                 pr_info("Toshiba SCI is not present\n");
 425 }
 426
 427 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 428 {
 429         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 430         u32 out[TCI_WORDS];
 431         acpi_status status = tci_raw(dev, in, out);
 432
 433         if (ACPI_FAILURE(status))
 434                 return TOS_FAILURE;
 435
 436         *out1 = out[2];
 437
 438         return out[0];
 439 }
 440
 441 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 442 {
 443         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 444         u32 out[TCI_WORDS];
 445         acpi_status status = tci_raw(dev, in, out);
 446
 447         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 448 }
 449
 450 /* Illumination support */
 451 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 452 {
 453         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 454         u32 out[TCI_WORDS];
 455         acpi_status status;
 456
 457         dev->illumination_supported = 0;
 458
 459         if (!sci_open(dev))
 460                 return;
 461
 462         status = tci_raw(dev, in, out);
 463         sci_close(dev);
 464         if (ACPI_FAILURE(status)) {
 465                 pr_err("ACPI call to query Illumination support failed\n");
 466                 return;
 467         }
 468
 469         if (out[0] != TOS_SUCCESS)
 470                 return;
 471
 472         dev->illumination_supported = 1;
 473 }
 474
 475 static void toshiba_illumination_set(struct led_classdev *cdev,
 476                                      enum led_brightness brightness)
 477 {
 478         struct toshiba_acpi_dev *dev = container_of(cdev,
 479                         struct toshiba_acpi_dev, led_dev);
 480         u32 result;
 481         u32 state;
 482
 483         /* First request : initialize communication. */
 484         if (!sci_open(dev))
 485                 return;
 486
 487         /* Switch the illumination on/off */
 488         state = brightness ? 1 : 0;
 489         result = sci_write(dev, SCI_ILLUMINATION, state);
 490         sci_close(dev);
 491         if (result == TOS_FAILURE)
 492                 pr_err("ACPI call for illumination failed\n");
 493 }
 494
 495 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 496 {
 497         struct toshiba_acpi_dev *dev = container_of(cdev,
 498                         struct toshiba_acpi_dev, led_dev);
 499         u32 result;
 500         u32 state;
 501
 502         /* First request : initialize communication. */
 503         if (!sci_open(dev))
 504                 return LED_OFF;
 505
 506         /* Check the illumination */
 507         result = sci_read(dev, SCI_ILLUMINATION, &state);
 508         sci_close(dev);
 509         if (result == TOS_FAILURE) {
 510                 pr_err("ACPI call for illumination failed\n");
 511                 return LED_OFF;
 512         } else if (result != TOS_SUCCESS) {
 513                 return LED_OFF;
 514         }
 515
 516         return state ? LED_FULL : LED_OFF;
 517 }
 518
 519 /* KBD Illumination */
 520 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 521 {
 522         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 523         u32 out[TCI_WORDS];
 524         acpi_status status;
 525
 526         dev->kbd_illum_supported = 0;
 527         dev->kbd_event_generated = false;
 528
 529         if (!sci_open(dev))
 530                 return;
 531
 532         status = tci_raw(dev, in, out);
 533         sci_close(dev);
 534         if (ACPI_FAILURE(status)) {
 535                 pr_err("ACPI call to query kbd illumination support failed\n");
 536                 return;
 537         }
 538
 539         if (out[0] != TOS_SUCCESS)
 540                 return;
 541
 542         /*
 543          * Check for keyboard backlight timeout max value,
 544          * previous kbd backlight implementation set this to
 545          * 0x3c0003, and now the new implementation set this
 546          * to 0x3c001a, use this to distinguish between them.
 547          */
 548         if (out[3] == SCI_KBD_TIME_MAX)
 549                 dev->kbd_type = 2;
 550         else
 551                 dev->kbd_type = 1;
 552         /* Get the current keyboard backlight mode */
 553         dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 554         /* Get the current time (1-60 seconds) */
 555         dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 556         /* Flag as supported */
 557         dev->kbd_illum_supported = 1;
 558 }
 559
 560 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 561 {
 562         u32 result;
 563
 564         if (!sci_open(dev))
 565                 return -EIO;
 566
 567         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 568         sci_close(dev);
 569         if (result == TOS_FAILURE)
 570                 pr_err("ACPI call to set KBD backlight status failed\n");
 571         else if (result == TOS_NOT_SUPPORTED)
 572                 return -ENODEV;
 573
 574         return result == TOS_SUCCESS ? 0 : -EIO;
 575 }
 576
 577 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 578 {
 579         u32 result;
 580
 581         if (!sci_open(dev))
 582                 return -EIO;
 583
 584         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 585         sci_close(dev);
 586         if (result == TOS_FAILURE)
 587                 pr_err("ACPI call to get KBD backlight status failed\n");
 588         else if (result == TOS_NOT_SUPPORTED)
 589                 return -ENODEV;
 590
 591         return result == TOS_SUCCESS ? 0 : -EIO;
 592 }
 593
 594 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 595 {
 596         struct toshiba_acpi_dev *dev = container_of(cdev,
 597                         struct toshiba_acpi_dev, kbd_led);
 598         u32 result;
 599         u32 state;
 600
 601         /* Check the keyboard backlight state */
 602         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 603         if (result == TOS_FAILURE) {
 604                 pr_err("ACPI call to get the keyboard backlight failed\n");
 605                 return LED_OFF;
 606         } else if (result != TOS_SUCCESS) {
 607                 return LED_OFF;
 608         }
 609
 610         return state ? LED_FULL : LED_OFF;
 611 }
 612
 613 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 614                                      enum led_brightness brightness)
 615 {
 616         struct toshiba_acpi_dev *dev = container_of(cdev,
 617                         struct toshiba_acpi_dev, kbd_led);
 618         u32 result;
 619         u32 state;
 620
 621         /* Set the keyboard backlight state */
 622         state = brightness ? 1 : 0;
 623         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 624         if (result == TOS_FAILURE)
 625                 pr_err("ACPI call to set KBD Illumination mode failed\n");
 626 }
 627
 628 /* TouchPad support */
 629 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 630 {
 631         u32 result;
 632
 633         if (!sci_open(dev))
 634                 return -EIO;
 635
 636         result = sci_write(dev, SCI_TOUCHPAD, state);
 637         sci_close(dev);
 638         if (result == TOS_FAILURE)
 639                 pr_err("ACPI call to set the touchpad failed\n");
 640         else if (result == TOS_NOT_SUPPORTED)
 641                 return -ENODEV;
 642
 643         return result == TOS_SUCCESS ? 0 : -EIO;
 644 }
 645
 646 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 647 {
 648         u32 result;
 649
 650         if (!sci_open(dev))
 651                 return -EIO;
 652
 653         result = sci_read(dev, SCI_TOUCHPAD, state);
 654         sci_close(dev);
 655         if (result == TOS_FAILURE)
 656                 pr_err("ACPI call to query the touchpad failed\n");
 657         else if (result == TOS_NOT_SUPPORTED)
 658                 return -ENODEV;
 659
 660         return result == TOS_SUCCESS ? 0 : -EIO;
 661 }
 662
 663 /* Eco Mode support */
 664 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 665 {
 666         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 667         u32 out[TCI_WORDS];
 668         acpi_status status;
 669
 670         dev->eco_supported = 0;
 671
 672         status = tci_raw(dev, in, out);
 673         if (ACPI_FAILURE(status)) {
 674                 pr_err("ACPI call to get ECO led failed\n");
 675                 return;
 676         }
 677
 678         if (out[0] == TOS_INPUT_DATA_ERROR) {
 679                 /*
 680                  * If we receive 0x8300 (Input Data Error), it means that the
 681                  * LED device is present, but that we just screwed the input
 682                  * parameters.
 683                  *
 684                  * Let's query the status of the LED to see if we really have a
 685                  * success response, indicating the actual presense of the LED,
 686                  * bail out otherwise.
 687                  */
 688                 in[3] = 1;
 689                 status = tci_raw(dev, in, out);
 690                 if (ACPI_FAILURE(status)) {
 691                         pr_err("ACPI call to get ECO led failed\n");
 692                         return;
 693                 }
 694
 695                 if (out[0] != TOS_SUCCESS)
 696                         return;
 697
 698                 dev->eco_supported = 1;
 699         }
 700 }
 701
 702 static enum led_brightness
 703 toshiba_eco_mode_get_status(struct led_classdev *cdev)
 704 {
 705         struct toshiba_acpi_dev *dev = container_of(cdev,
 706                         struct toshiba_acpi_dev, eco_led);
 707         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 708         u32 out[TCI_WORDS];
 709         acpi_status status;
 710
 711         status = tci_raw(dev, in, out);
 712         if (ACPI_FAILURE(status)) {
 713                 pr_err("ACPI call to get ECO led failed\n");
 714                 return LED_OFF;
 715         }
 716
 717         if (out[0] != TOS_SUCCESS)
 718                 return LED_OFF;
 719
 720         return out[2] ? LED_FULL : LED_OFF;
 721 }
 722
 723 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 724                                      enum led_brightness brightness)
 725 {
 726         struct toshiba_acpi_dev *dev = container_of(cdev,
 727                         struct toshiba_acpi_dev, eco_led);
 728         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 729         u32 out[TCI_WORDS];
 730         acpi_status status;
 731
 732         /* Switch the Eco Mode led on/off */
 733         in[2] = (brightness) ? 1 : 0;
 734         status = tci_raw(dev, in, out);
 735         if (ACPI_FAILURE(status))
 736                 pr_err("ACPI call to set ECO led failed\n");
 737 }
 738
 739 /* Accelerometer support */
 740 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 741 {
 742         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 743         u32 out[TCI_WORDS];
 744         acpi_status status;
 745
 746         dev->accelerometer_supported = 0;
 747
 748         /*
 749          * Check if the accelerometer call exists,
 750          * this call also serves as initialization
 751          */
 752         status = tci_raw(dev, in, out);
 753         if (ACPI_FAILURE(status)) {
 754                 pr_err("ACPI call to query the accelerometer failed\n");
 755                 return;
 756         }
 757
 758         if (out[0] != TOS_SUCCESS)
 759                 return;
 760
 761         dev->accelerometer_supported = 1;
 762 }
 763
 764 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 765                                      u32 *xy, u32 *z)
 766 {
 767         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 768         u32 out[TCI_WORDS];
 769         acpi_status status;
 770
 771         /* Check the Accelerometer status */
 772         status = tci_raw(dev, in, out);
 773         if (ACPI_FAILURE(status)) {
 774                 pr_err("ACPI call to query the accelerometer failed\n");
 775                 return -EIO;
 776         }
 777
 778         if (out[0] == TOS_NOT_SUPPORTED)
 779                 return -ENODEV;
 780
 781         if (out[0] != TOS_SUCCESS)
 782                 return -EIO;
 783
 784         *xy = out[2];
 785         *z = out[4];
 786
 787         return 0;
 788 }
 789
 790 /* Sleep (Charge and Music) utilities support */
 791 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 792 {
 793         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 794         u32 out[TCI_WORDS];
 795         acpi_status status;
 796
 797         dev->usb_sleep_charge_supported = 0;
 798
 799         if (!sci_open(dev))
 800                 return;
 801
 802         status = tci_raw(dev, in, out);
 803         if (ACPI_FAILURE(status)) {
 804                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 805                 sci_close(dev);
 806                 return;
 807         }
 808
 809         if (out[0] != TOS_SUCCESS) {
 810                 sci_close(dev);
 811                 return;
 812         }
 813
 814         dev->usbsc_mode_base = out[4];
 815
 816         in[5] = SCI_USB_CHARGE_BAT_LVL;
 817         status = tci_raw(dev, in, out);
 818         sci_close(dev);
 819         if (ACPI_FAILURE(status)) {
 820                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 821                 return;
 822         }
 823
 824         if (out[0] != TOS_SUCCESS)
 825                 return;
 826
 827         dev->usbsc_bat_level = out[2];
 828         /* Flag as supported */
 829         dev->usb_sleep_charge_supported = 1;
 830 }
 831
 832 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 833                                         u32 *mode)
 834 {
 835         u32 result;
 836
 837         if (!sci_open(dev))
 838                 return -EIO;
 839
 840         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 841         sci_close(dev);
 842         if (result == TOS_FAILURE)
 843                 pr_err("ACPI call to set USB S&C mode failed\n");
 844         else if (result == TOS_NOT_SUPPORTED)
 845                 return -ENODEV;
 846
 847         return result == TOS_SUCCESS ? 0 : -EIO;
 848 }
 849
 850 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 851                                         u32 mode)
 852 {
 853         u32 result;
 854
 855         if (!sci_open(dev))
 856                 return -EIO;
 857
 858         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 859         sci_close(dev);
 860         if (result == TOS_FAILURE)
 861                 pr_err("ACPI call to set USB S&C mode failed\n");
 862         else if (result == TOS_NOT_SUPPORTED)
 863                 return -ENODEV;
 864
 865         return result == TOS_SUCCESS ? 0 : -EIO;
 866 }
 867
 868 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 869                                               u32 *mode)
 870 {
 871         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 872         u32 out[TCI_WORDS];
 873         acpi_status status;
 874
 875         if (!sci_open(dev))
 876                 return -EIO;
 877
 878         in[5] = SCI_USB_CHARGE_BAT_LVL;
 879         status = tci_raw(dev, in, out);
 880         sci_close(dev);
 881         if (ACPI_FAILURE(status)) {
 882                 pr_err("ACPI call to get USB S&C battery level failed\n");
 883                 return -EIO;
 884         }
 885
 886         if (out[0] == TOS_NOT_SUPPORTED)
 887                 return -ENODEV;
 888
 889         if (out[0] != TOS_SUCCESS)
 890                 return -EIO;
 891
 892         *mode = out[2];
 893
 894         return 0;
 895
 896 }
 897
 898 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 899                                               u32 mode)
 900 {
 901         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 902         u32 out[TCI_WORDS];
 903         acpi_status status;
 904
 905         if (!sci_open(dev))
 906                 return -EIO;
 907
 908         in[2] = mode;
 909         in[5] = SCI_USB_CHARGE_BAT_LVL;
 910         status = tci_raw(dev, in, out);
 911         sci_close(dev);
 912         if (ACPI_FAILURE(status)) {
 913                 pr_err("ACPI call to set USB S&C battery level failed\n");
 914                 return -EIO;
 915         }
 916
 917         if (out[0] == TOS_NOT_SUPPORTED)
 918                 return -ENODEV;
 919
 920         return out[0] == TOS_SUCCESS ? 0 : -EIO;
 921 }
 922
 923 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 924                                         u32 *state)
 925 {
 926         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 927         u32 out[TCI_WORDS];
 928         acpi_status status;
 929
 930         if (!sci_open(dev))
 931                 return -EIO;
 932
 933         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 934         status = tci_raw(dev, in, out);
 935         sci_close(dev);
 936         if (ACPI_FAILURE(status)) {
 937                 pr_err("ACPI call to get USB Rapid Charge failed\n");
 938                 return -EIO;
 939         }
 940
 941         if (out[0] == TOS_NOT_SUPPORTED)
 942                 return -ENODEV;
 943
 944         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 945                 return -EIO;
 946
 947         *state = out[2];
 948
 949         return 0;
 950 }
 951
 952 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 953                                         u32 state)
 954 {
 955         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 956         u32 out[TCI_WORDS];
 957         acpi_status status;
 958
 959         if (!sci_open(dev))
 960                 return -EIO;
 961
 962         in[2] = state;
 963         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 964         status = tci_raw(dev, in, out);
 965         sci_close(dev);
 966         if (ACPI_FAILURE(status)) {
 967                 pr_err("ACPI call to set USB Rapid Charge failed\n");
 968                 return -EIO;
 969         }
 970
 971         if (out[0] == TOS_NOT_SUPPORTED)
 972                 return -ENODEV;
 973
 974         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 975 }
 976
 977 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 978 {
 979         u32 result;
 980
 981         if (!sci_open(dev))
 982                 return -EIO;
 983
 984         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
 985         sci_close(dev);
 986         if (result == TOS_FAILURE)
 987                 pr_err("ACPI call to get Sleep and Music failed\n");
 988         else if (result == TOS_NOT_SUPPORTED)
 989                 return -ENODEV;
 990
 991         return result == TOS_SUCCESS ? 0 : -EIO;
 992 }
 993
 994 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
 995 {
 996         u32 result;
 997
 998         if (!sci_open(dev))
 999                 return -EIO;
1000
1001         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1002         sci_close(dev);
1003         if (result == TOS_FAILURE)
1004                 pr_err("ACPI call to set Sleep and Music failed\n");
1005         else if (result == TOS_NOT_SUPPORTED)
1006                 return -ENODEV;
1007
1008         return result == TOS_SUCCESS ? 0 : -EIO;
1009 }
1010
1011 /* Keyboard function keys */
1012 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1013 {
1014         u32 result;
1015
1016         if (!sci_open(dev))
1017                 return -EIO;
1018
1019         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1020         sci_close(dev);
1021         if (result == TOS_FAILURE)
1022                 pr_err("ACPI call to get KBD function keys failed\n");
1023         else if (result == TOS_NOT_SUPPORTED)
1024                 return -ENODEV;
1025
1026         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1027 }
1028
1029 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1030 {
1031         u32 result;
1032
1033         if (!sci_open(dev))
1034                 return -EIO;
1035
1036         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037         sci_close(dev);
1038         if (result == TOS_FAILURE)
1039                 pr_err("ACPI call to set KBD function keys failed\n");
1040         else if (result == TOS_NOT_SUPPORTED)
1041                 return -ENODEV;
1042
1043         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044 }
1045
1046 /* Panel Power ON */
1047 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1048 {
1049         u32 result;
1050
1051         if (!sci_open(dev))
1052                 return -EIO;
1053
1054         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1055         sci_close(dev);
1056         if (result == TOS_FAILURE)
1057                 pr_err("ACPI call to get Panel Power ON failed\n");
1058         else if (result == TOS_NOT_SUPPORTED)
1059                 return -ENODEV;
1060
1061         return result == TOS_SUCCESS ? 0 : -EIO;
1062 }
1063
1064 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1065 {
1066         u32 result;
1067
1068         if (!sci_open(dev))
1069                 return -EIO;
1070
1071         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1072         sci_close(dev);
1073         if (result == TOS_FAILURE)
1074                 pr_err("ACPI call to set Panel Power ON failed\n");
1075         else if (result == TOS_NOT_SUPPORTED)
1076                 return -ENODEV;
1077
1078         return result == TOS_SUCCESS ? 0 : -EIO;
1079 }
1080
1081 /* USB Three */
1082 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1083 {
1084         u32 result;
1085
1086         if (!sci_open(dev))
1087                 return -EIO;
1088
1089         result = sci_read(dev, SCI_USB_THREE, state);
1090         sci_close(dev);
1091         if (result == TOS_FAILURE)
1092                 pr_err("ACPI call to get USB 3 failed\n");
1093         else if (result == TOS_NOT_SUPPORTED)
1094                 return -ENODEV;
1095
1096         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1097 }
1098
1099 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1100 {
1101         u32 result;
1102
1103         if (!sci_open(dev))
1104                 return -EIO;
1105
1106         result = sci_write(dev, SCI_USB_THREE, state);
1107         sci_close(dev);
1108         if (result == TOS_FAILURE)
1109                 pr_err("ACPI call to set USB 3 failed\n");
1110         else if (result == TOS_NOT_SUPPORTED)
1111                 return -ENODEV;
1112
1113         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114 }
1115
1116 /* Hotkey Event type */
1117 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1118                                          u32 *type)
1119 {
1120         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1121         u32 out[TCI_WORDS];
1122         acpi_status status;
1123
1124         status = tci_raw(dev, in, out);
1125         if (ACPI_FAILURE(status)) {
1126                 pr_err("ACPI call to get System type failed\n");
1127                 return -EIO;
1128         }
1129
1130         if (out[0] == TOS_NOT_SUPPORTED)
1131                 return -ENODEV;
1132
1133         if (out[0] != TOS_SUCCESS)
1134                 return -EIO;
1135
1136         *type = out[3];
1137
1138         return 0;
1139 }
1140
1141 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1142 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1143 {
1144         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1145         u32 out[TCI_WORDS];
1146         acpi_status status;
1147
1148         in[3] = HCI_WIRELESS_STATUS;
1149         status = tci_raw(dev, in, out);
1150
1151         if (ACPI_FAILURE(status)) {
1152                 pr_err("ACPI call to get Wireless status failed\n");
1153                 return -EIO;
1154         }
1155
1156         if (out[0] == TOS_NOT_SUPPORTED)
1157                 return -ENODEV;
1158
1159         if (out[0] != TOS_SUCCESS)
1160                 return -EIO;
1161
1162         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1163
1164         return 0;
1165 }
1166
1167 /* WWAN */
1168 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1169 {
1170         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1171         u32 out[TCI_WORDS];
1172         acpi_status status;
1173
1174         dev->wwan_supported = 0;
1175
1176         /*
1177          * WWAN support can be queried by setting the in[3] value to
1178          * HCI_WIRELESS_WWAN (0x03).
1179          *
1180          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1181          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1182          *
1183          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1184          * or TOS_NOT_SUPPORTED (0x8000).
1185          */
1186         in[3] = HCI_WIRELESS_WWAN;
1187         status = tci_raw(dev, in, out);
1188         if (ACPI_FAILURE(status)) {
1189                 pr_err("ACPI call to get WWAN status failed\n");
1190                 return;
1191         }
1192
1193         if (out[0] != TOS_SUCCESS)
1194                 return;
1195
1196         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1197 }
1198
1199 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1200 {
1201         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1202         u32 out[TCI_WORDS];
1203         acpi_status status;
1204
1205         in[3] = HCI_WIRELESS_WWAN_STATUS;
1206         status = tci_raw(dev, in, out);
1207         if (ACPI_FAILURE(status)) {
1208                 pr_err("ACPI call to set WWAN status failed\n");
1209                 return -EIO;
1210         }
1211
1212         if (out[0] == TOS_NOT_SUPPORTED)
1213                 return -ENODEV;
1214
1215         if (out[0] != TOS_SUCCESS)
1216                 return -EIO;
1217
1218         /*
1219          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1220          * (de)activate the device, but some others need the
1221          * HCI_WIRELESS_WWAN_POWER call as well.
1222          */
1223         in[3] = HCI_WIRELESS_WWAN_POWER;
1224         status = tci_raw(dev, in, out);
1225         if (ACPI_FAILURE(status)) {
1226                 pr_err("ACPI call to set WWAN power failed\n");
1227                 return -EIO;
1228         }
1229
1230         if (out[0] == TOS_NOT_SUPPORTED)
1231                 return -ENODEV;
1232
1233         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1234 }
1235
1236 /* Cooling Method */
1237 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1238 {
1239         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1240         u32 out[TCI_WORDS];
1241         acpi_status status;
1242
1243         dev->cooling_method_supported = 0;
1244         dev->max_cooling_method = 0;
1245
1246         status = tci_raw(dev, in, out);
1247         if (ACPI_FAILURE(status)) {
1248                 pr_err("ACPI call to get Cooling Method failed\n");
1249                 return;
1250         }
1251
1252         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1253                 return;
1254
1255         dev->cooling_method_supported = 1;
1256         dev->max_cooling_method = out[3];
1257 }
1258
1259 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1260 {
1261         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1262
1263         if (result == TOS_FAILURE)
1264                 pr_err("ACPI call to get Cooling Method failed\n");
1265
1266         if (result == TOS_NOT_SUPPORTED)
1267                 return -ENODEV;
1268
1269         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1270 }
1271
1272 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1273 {
1274         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1275
1276         if (result == TOS_FAILURE)
1277                 pr_err("ACPI call to set Cooling Method failed\n");
1278
1279         if (result == TOS_NOT_SUPPORTED)
1280                 return -ENODEV;
1281
1282         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1283 }
1284
1285 /* Transflective Backlight */
1286 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1287 {
1288         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1289
1290         if (result == TOS_FAILURE)
1291                 pr_err("ACPI call to get Transflective Backlight failed\n");
1292         else if (result == TOS_NOT_SUPPORTED)
1293                 return -ENODEV;
1294
1295         return result == TOS_SUCCESS ? 0 : -EIO;
1296 }
1297
1298 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1299 {
1300         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1301
1302         if (result == TOS_FAILURE)
1303                 pr_err("ACPI call to set Transflective Backlight failed\n");
1304         else if (result == TOS_NOT_SUPPORTED)
1305                 return -ENODEV;
1306
1307         return result == TOS_SUCCESS ? 0 : -EIO;
1308 }
1309
1310 static struct proc_dir_entry *toshiba_proc_dir;
1311
1312 /* LCD Brightness */
1313 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1314 {
1315         int brightness = 0;
1316         u32 result;
1317         u32 value;
1318
1319         if (dev->tr_backlight_supported) {
1320                 int ret = get_tr_backlight_status(dev, &value);
1321
1322                 if (ret)
1323                         return ret;
1324                 if (value)
1325                         return 0;
1326                 brightness++;
1327         }
1328
1329         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1330         if (result == TOS_FAILURE)
1331                 pr_err("ACPI call to get LCD Brightness failed\n");
1332         else if (result == TOS_NOT_SUPPORTED)
1333                 return -ENODEV;
1334
1335         return result == TOS_SUCCESS ?
1336                         brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1337                         -EIO;
1338 }
1339
1340 static int get_lcd_brightness(struct backlight_device *bd)
1341 {
1342         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1343
1344         return __get_lcd_brightness(dev);
1345 }
1346
1347 static int lcd_proc_show(struct seq_file *m, void *v)
1348 {
1349         struct toshiba_acpi_dev *dev = m->private;
1350         int levels;
1351         int value;
1352
1353         if (!dev->backlight_dev)
1354                 return -ENODEV;
1355
1356         levels = dev->backlight_dev->props.max_brightness + 1;
1357         value = get_lcd_brightness(dev->backlight_dev);
1358         if (value < 0) {
1359                 pr_err("Error reading LCD brightness\n");
1360                 return value;
1361         }
1362
1363         seq_printf(m, "brightness:              %d\n", value);
1364         seq_printf(m, "brightness_levels:       %d\n", levels);
1365
1366         return 0;
1367 }
1368
1369 static int lcd_proc_open(struct inode *inode, struct file *file)
1370 {
1371         return single_open(file, lcd_proc_show, pde_data(inode));
1372 }
1373
1374 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1375 {
1376         u32 result;
1377
1378         if (dev->tr_backlight_supported) {
1379                 int ret = set_tr_backlight_status(dev, !value);
1380
1381                 if (ret)
1382                         return ret;
1383                 if (value)
1384                         value--;
1385         }
1386
1387         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1388         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1389         if (result == TOS_FAILURE)
1390                 pr_err("ACPI call to set LCD Brightness failed\n");
1391         else if (result == TOS_NOT_SUPPORTED)
1392                 return -ENODEV;
1393
1394         return result == TOS_SUCCESS ? 0 : -EIO;
1395 }
1396
1397 static int set_lcd_status(struct backlight_device *bd)
1398 {
1399         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1400
1401         return set_lcd_brightness(dev, bd->props.brightness);
1402 }
1403
1404 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1405                               size_t count, loff_t *pos)
1406 {
1407         struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1408         char cmd[42];
1409         size_t len;
1410         int levels;
1411         int value;
1412
1413         len = min(count, sizeof(cmd) - 1);
1414         if (copy_from_user(cmd, buf, len))
1415                 return -EFAULT;
1416         cmd[len] = '\0';
1417
1418         levels = dev->backlight_dev->props.max_brightness + 1;
1419         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1420             value < 0 && value > levels)
1421                 return -EINVAL;
1422
1423         if (set_lcd_brightness(dev, value))
1424                 return -EIO;
1425
1426         return count;
1427 }
1428
1429 static const struct proc_ops lcd_proc_ops = {
1430         .proc_open      = lcd_proc_open,
1431         .proc_read      = seq_read,
1432         .proc_lseek     = seq_lseek,
1433         .proc_release   = single_release,
1434         .proc_write     = lcd_proc_write,
1435 };
1436
1437 /* Video-Out */
1438 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1439 {
1440         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1441
1442         if (result == TOS_FAILURE)
1443                 pr_err("ACPI call to get Video-Out failed\n");
1444         else if (result == TOS_NOT_SUPPORTED)
1445                 return -ENODEV;
1446
1447         return result == TOS_SUCCESS ? 0 : -EIO;
1448 }
1449
1450 static int video_proc_show(struct seq_file *m, void *v)
1451 {
1452         struct toshiba_acpi_dev *dev = m->private;
1453         int is_lcd, is_crt, is_tv;
1454         u32 value;
1455
1456         if (get_video_status(dev, &value))
1457                 return -EIO;
1458
1459         is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1460         is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1461         is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1462
1463         seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1464         seq_printf(m, "crt_out:                 %d\n", is_crt);
1465         seq_printf(m, "tv_out:                  %d\n", is_tv);
1466
1467         return 0;
1468 }
1469
1470 static int video_proc_open(struct inode *inode, struct file *file)
1471 {
1472         return single_open(file, video_proc_show, pde_data(inode));
1473 }
1474
1475 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1476                                 size_t count, loff_t *pos)
1477 {
1478         struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1479         char *buffer;
1480         char *cmd;
1481         int lcd_out = -1, crt_out = -1, tv_out = -1;
1482         int remain = count;
1483         int value;
1484         int ret;
1485         u32 video_out;
1486
1487         cmd = memdup_user_nul(buf, count);
1488         if (IS_ERR(cmd))
1489                 return PTR_ERR(cmd);
1490
1491         buffer = cmd;
1492
1493         /*
1494          * Scan expression.  Multiple expressions may be delimited with ;
1495          * NOTE: To keep scanning simple, invalid fields are ignored.
1496          */
1497         while (remain) {
1498                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1499                         lcd_out = value & 1;
1500                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1501                         crt_out = value & 1;
1502                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1503                         tv_out = value & 1;
1504                 /* Advance to one character past the next ; */
1505                 do {
1506                         ++buffer;
1507                         --remain;
1508                 } while (remain && *(buffer - 1) != ';');
1509         }
1510
1511         kfree(cmd);
1512
1513         ret = get_video_status(dev, &video_out);
1514         if (!ret) {
1515                 unsigned int new_video_out = video_out;
1516
1517                 if (lcd_out != -1)
1518                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1519                 if (crt_out != -1)
1520                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1521                 if (tv_out != -1)
1522                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1523                 /*
1524                  * To avoid unnecessary video disruption, only write the new
1525                  * video setting if something changed.
1526                  */
1527                 if (new_video_out != video_out)
1528                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1529         }
1530
1531         return ret ? -EIO : count;
1532 }
1533
1534 static const struct proc_ops video_proc_ops = {
1535         .proc_open      = video_proc_open,
1536         .proc_read      = seq_read,
1537         .proc_lseek     = seq_lseek,
1538         .proc_release   = single_release,
1539         .proc_write     = video_proc_write,
1540 };
1541
1542 /* Fan status */
1543 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1544 {
1545         u32 result = hci_read(dev, HCI_FAN, status);
1546
1547         if (result == TOS_FAILURE)
1548                 pr_err("ACPI call to get Fan status failed\n");
1549         else if (result == TOS_NOT_SUPPORTED)
1550                 return -ENODEV;
1551
1552         return result == TOS_SUCCESS ? 0 : -EIO;
1553 }
1554
1555 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1556 {
1557         u32 result = hci_write(dev, HCI_FAN, status);
1558
1559         if (result == TOS_FAILURE)
1560                 pr_err("ACPI call to set Fan status failed\n");
1561         else if (result == TOS_NOT_SUPPORTED)
1562                 return -ENODEV;
1563
1564         return result == TOS_SUCCESS ? 0 : -EIO;
1565 }
1566
1567 static int fan_proc_show(struct seq_file *m, void *v)
1568 {
1569         struct toshiba_acpi_dev *dev = m->private;
1570         u32 value;
1571
1572         if (get_fan_status(dev, &value))
1573                 return -EIO;
1574
1575         seq_printf(m, "running:                 %d\n", (value > 0));
1576         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1577
1578         return 0;
1579 }
1580
1581 static int fan_proc_open(struct inode *inode, struct file *file)
1582 {
1583         return single_open(file, fan_proc_show, pde_data(inode));
1584 }
1585
1586 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1587                               size_t count, loff_t *pos)
1588 {
1589         struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1590         char cmd[42];
1591         size_t len;
1592         int value;
1593
1594         len = min(count, sizeof(cmd) - 1);
1595         if (copy_from_user(cmd, buf, len))
1596                 return -EFAULT;
1597         cmd[len] = '\0';
1598
1599         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1600             value != 0 && value != 1)
1601                 return -EINVAL;
1602
1603         if (set_fan_status(dev, value))
1604                 return -EIO;
1605
1606         dev->force_fan = value;
1607
1608         return count;
1609 }
1610
1611 static const struct proc_ops fan_proc_ops = {
1612         .proc_open      = fan_proc_open,
1613         .proc_read      = seq_read,
1614         .proc_lseek     = seq_lseek,
1615         .proc_release   = single_release,
1616         .proc_write     = fan_proc_write,
1617 };
1618
1619 static int keys_proc_show(struct seq_file *m, void *v)
1620 {
1621         struct toshiba_acpi_dev *dev = m->private;
1622
1623         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1624         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1625
1626         return 0;
1627 }
1628
1629 static int keys_proc_open(struct inode *inode, struct file *file)
1630 {
1631         return single_open(file, keys_proc_show, pde_data(inode));
1632 }
1633
1634 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1635                                size_t count, loff_t *pos)
1636 {
1637         struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1638         char cmd[42];
1639         size_t len;
1640         int value;
1641
1642         len = min(count, sizeof(cmd) - 1);
1643         if (copy_from_user(cmd, buf, len))
1644                 return -EFAULT;
1645         cmd[len] = '\0';
1646
1647         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1648                 dev->key_event_valid = 0;
1649         else
1650                 return -EINVAL;
1651
1652         return count;
1653 }
1654
1655 static const struct proc_ops keys_proc_ops = {
1656         .proc_open      = keys_proc_open,
1657         .proc_read      = seq_read,
1658         .proc_lseek     = seq_lseek,
1659         .proc_release   = single_release,
1660         .proc_write     = keys_proc_write,
1661 };
1662
1663 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1664 {
1665         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1666         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1667         return 0;
1668 }
1669
1670 /*
1671  * Proc and module init
1672  */
1673
1674 #define PROC_TOSHIBA            "toshiba"
1675
1676 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1677 {
1678         if (dev->backlight_dev)
1679                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1680                                  &lcd_proc_ops, dev);
1681         if (dev->video_supported)
1682                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1683                                  &video_proc_ops, dev);
1684         if (dev->fan_supported)
1685                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1686                                  &fan_proc_ops, dev);
1687         if (dev->hotkey_dev)
1688                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1689                                  &keys_proc_ops, dev);
1690         proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1691                         version_proc_show, dev);
1692 }
1693
1694 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1695 {
1696         if (dev->backlight_dev)
1697                 remove_proc_entry("lcd", toshiba_proc_dir);
1698         if (dev->video_supported)
1699                 remove_proc_entry("video", toshiba_proc_dir);
1700         if (dev->fan_supported)
1701                 remove_proc_entry("fan", toshiba_proc_dir);
1702         if (dev->hotkey_dev)
1703                 remove_proc_entry("keys", toshiba_proc_dir);
1704         remove_proc_entry("version", toshiba_proc_dir);
1705 }
1706
1707 static const struct backlight_ops toshiba_backlight_data = {
1708         .options = BL_CORE_SUSPENDRESUME,
1709         .get_brightness = get_lcd_brightness,
1710         .update_status  = set_lcd_status,
1711 };
1712
1713 /* Keyboard backlight work */
1714 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1715
1716 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1717
1718 /*
1719  * Sysfs files
1720  */
1721 static ssize_t version_show(struct device *dev,
1722                             struct device_attribute *attr, char *buf)
1723 {
1724         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1725 }
1726 static DEVICE_ATTR_RO(version);
1727
1728 static ssize_t fan_store(struct device *dev,
1729                          struct device_attribute *attr,
1730                          const char *buf, size_t count)
1731 {
1732         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1733         int state;
1734         int ret;
1735
1736         ret = kstrtoint(buf, 0, &state);
1737         if (ret)
1738                 return ret;
1739
1740         if (state != 0 && state != 1)
1741                 return -EINVAL;
1742
1743         ret = set_fan_status(toshiba, state);
1744         if (ret)
1745                 return ret;
1746
1747         return count;
1748 }
1749
1750 static ssize_t fan_show(struct device *dev,
1751                         struct device_attribute *attr, char *buf)
1752 {
1753         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1754         u32 value;
1755         int ret;
1756
1757         ret = get_fan_status(toshiba, &value);
1758         if (ret)
1759                 return ret;
1760
1761         return sprintf(buf, "%d\n", value);
1762 }
1763 static DEVICE_ATTR_RW(fan);
1764
1765 static ssize_t kbd_backlight_mode_store(struct device *dev,
1766                                         struct device_attribute *attr,
1767                                         const char *buf, size_t count)
1768 {
1769         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1770         int mode;
1771         int ret;
1772
1773
1774         ret = kstrtoint(buf, 0, &mode);
1775         if (ret)
1776                 return ret;
1777
1778         /* Check for supported modes depending on keyboard backlight type */
1779         if (toshiba->kbd_type == 1) {
1780                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1781                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1782                         return -EINVAL;
1783         } else if (toshiba->kbd_type == 2) {
1784                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1785                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1786                     mode != SCI_KBD_MODE_OFF)
1787                         return -EINVAL;
1788         }
1789
1790         /*
1791          * Set the Keyboard Backlight Mode where:
1792          *      Auto - KBD backlight turns off automatically in given time
1793          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1794          *      ON   - KBD backlight is always on
1795          *      OFF  - KBD backlight is always off
1796          */
1797
1798         /* Only make a change if the actual mode has changed */
1799         if (toshiba->kbd_mode != mode) {
1800                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1801                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1802
1803                 /* OR the "base time" to the actual method format */
1804                 if (toshiba->kbd_type == 1) {
1805                         /* Type 1 requires the current mode */
1806                         time |= toshiba->kbd_mode;
1807                 } else if (toshiba->kbd_type == 2) {
1808                         /* Type 2 requires the desired mode */
1809                         time |= mode;
1810                 }
1811
1812                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1813                 if (ret)
1814                         return ret;
1815
1816                 toshiba->kbd_mode = mode;
1817                 toshiba_acpi->kbd_mode = mode;
1818
1819                 /*
1820                  * Some laptop models with the second generation backlit
1821                  * keyboard (type 2) do not generate the keyboard backlight
1822                  * changed event (0x92), and thus, the driver will never update
1823                  * the sysfs entries.
1824                  *
1825                  * The event is generated right when changing the keyboard
1826                  * backlight mode and the *notify function will set the
1827                  * kbd_event_generated to true.
1828                  *
1829                  * In case the event is not generated, schedule the keyboard
1830                  * backlight work to update the sysfs entries and emulate the
1831                  * event via genetlink.
1832                  */
1833                 if (toshiba->kbd_type == 2 &&
1834                     !toshiba->kbd_event_generated)
1835                         schedule_work(&kbd_bl_work);
1836         }
1837
1838         return count;
1839 }
1840
1841 static ssize_t kbd_backlight_mode_show(struct device *dev,
1842                                        struct device_attribute *attr,
1843                                        char *buf)
1844 {
1845         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1846         u32 time;
1847
1848         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1849                 return -EIO;
1850
1851         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1852 }
1853 static DEVICE_ATTR_RW(kbd_backlight_mode);
1854
1855 static ssize_t kbd_type_show(struct device *dev,
1856                              struct device_attribute *attr, char *buf)
1857 {
1858         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1859
1860         return sprintf(buf, "%d\n", toshiba->kbd_type);
1861 }
1862 static DEVICE_ATTR_RO(kbd_type);
1863
1864 static ssize_t available_kbd_modes_show(struct device *dev,
1865                                         struct device_attribute *attr,
1866                                         char *buf)
1867 {
1868         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1869
1870         if (toshiba->kbd_type == 1)
1871                 return sprintf(buf, "0x%x 0x%x\n",
1872                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1873
1874         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1875                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1876 }
1877 static DEVICE_ATTR_RO(available_kbd_modes);
1878
1879 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1880                                            struct device_attribute *attr,
1881                                            const char *buf, size_t count)
1882 {
1883         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1884         int time;
1885         int ret;
1886
1887         ret = kstrtoint(buf, 0, &time);
1888         if (ret)
1889                 return ret;
1890
1891         /* Check for supported values depending on kbd_type */
1892         if (toshiba->kbd_type == 1) {
1893                 if (time < 0 || time > 60)
1894                         return -EINVAL;
1895         } else if (toshiba->kbd_type == 2) {
1896                 if (time < 1 || time > 60)
1897                         return -EINVAL;
1898         }
1899
1900         /* Set the Keyboard Backlight Timeout */
1901
1902         /* Only make a change if the actual timeout has changed */
1903         if (toshiba->kbd_time != time) {
1904                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1905                 time = time << HCI_MISC_SHIFT;
1906                 /* OR the "base time" to the actual method format */
1907                 if (toshiba->kbd_type == 1)
1908                         time |= SCI_KBD_MODE_FNZ;
1909                 else if (toshiba->kbd_type == 2)
1910                         time |= SCI_KBD_MODE_AUTO;
1911
1912                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1913                 if (ret)
1914                         return ret;
1915
1916                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1917         }
1918
1919         return count;
1920 }
1921
1922 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1923                                           struct device_attribute *attr,
1924                                           char *buf)
1925 {
1926         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1927         u32 time;
1928
1929         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1930                 return -EIO;
1931
1932         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1933 }
1934 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1935
1936 static ssize_t touchpad_store(struct device *dev,
1937                               struct device_attribute *attr,
1938                               const char *buf, size_t count)
1939 {
1940         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1941         int state;
1942         int ret;
1943
1944         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1945         ret = kstrtoint(buf, 0, &state);
1946         if (ret)
1947                 return ret;
1948         if (state != 0 && state != 1)
1949                 return -EINVAL;
1950
1951         ret = toshiba_touchpad_set(toshiba, state);
1952         if (ret)
1953                 return ret;
1954
1955         return count;
1956 }
1957
1958 static ssize_t touchpad_show(struct device *dev,
1959                              struct device_attribute *attr, char *buf)
1960 {
1961         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1962         u32 state;
1963         int ret;
1964
1965         ret = toshiba_touchpad_get(toshiba, &state);
1966         if (ret < 0)
1967                 return ret;
1968
1969         return sprintf(buf, "%i\n", state);
1970 }
1971 static DEVICE_ATTR_RW(touchpad);
1972
1973 static ssize_t usb_sleep_charge_show(struct device *dev,
1974                                      struct device_attribute *attr, char *buf)
1975 {
1976         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1977         u32 mode;
1978         int ret;
1979
1980         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1981         if (ret < 0)
1982                 return ret;
1983
1984         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1985 }
1986
1987 static ssize_t usb_sleep_charge_store(struct device *dev,
1988                                       struct device_attribute *attr,
1989                                       const char *buf, size_t count)
1990 {
1991         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1992         int state;
1993         u32 mode;
1994         int ret;
1995
1996         ret = kstrtoint(buf, 0, &state);
1997         if (ret)
1998                 return ret;
1999         /*
2000          * Check for supported values, where:
2001          * 0 - Disabled
2002          * 1 - Alternate (Non USB conformant devices that require more power)
2003          * 2 - Auto (USB conformant devices)
2004          * 3 - Typical
2005          */
2006         if (state != 0 && state != 1 && state != 2 && state != 3)
2007                 return -EINVAL;
2008
2009         /* Set the USB charging mode to internal value */
2010         mode = toshiba->usbsc_mode_base;
2011         if (state == 0)
2012                 mode |= SCI_USB_CHARGE_DISABLED;
2013         else if (state == 1)
2014                 mode |= SCI_USB_CHARGE_ALTERNATE;
2015         else if (state == 2)
2016                 mode |= SCI_USB_CHARGE_AUTO;
2017         else if (state == 3)
2018                 mode |= SCI_USB_CHARGE_TYPICAL;
2019
2020         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2021         if (ret)
2022                 return ret;
2023
2024         return count;
2025 }
2026 static DEVICE_ATTR_RW(usb_sleep_charge);
2027
2028 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2029                                                struct device_attribute *attr,
2030                                                char *buf)
2031 {
2032         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2033         int bat_lvl, status;
2034         u32 state;
2035         int ret;
2036         int tmp;
2037
2038         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2039         if (ret < 0)
2040                 return ret;
2041
2042         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2043         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2044         status = (tmp == 0x4) ? 1 : 0;
2045         /* Determine the battery level set */
2046         bat_lvl = state >> HCI_MISC_SHIFT;
2047
2048         return sprintf(buf, "%d %d\n", status, bat_lvl);
2049 }
2050
2051 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2052                                                 struct device_attribute *attr,
2053                                                 const char *buf, size_t count)
2054 {
2055         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2056         u32 status;
2057         int value;
2058         int ret;
2059         int tmp;
2060
2061         ret = kstrtoint(buf, 0, &value);
2062         if (ret)
2063                 return ret;
2064
2065         /*
2066          * Set the status of the function:
2067          * 0 - Disabled
2068          * 1-100 - Enabled
2069          */
2070         if (value < 0 || value > 100)
2071                 return -EINVAL;
2072
2073         if (value == 0) {
2074                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2075                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2076         } else {
2077                 tmp = value << HCI_MISC_SHIFT;
2078                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2079         }
2080         ret = toshiba_sleep_functions_status_set(toshiba, status);
2081         if (ret < 0)
2082                 return ret;
2083
2084         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2085
2086         return count;
2087 }
2088 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2089
2090 static ssize_t usb_rapid_charge_show(struct device *dev,
2091                                      struct device_attribute *attr, char *buf)
2092 {
2093         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2094         u32 state;
2095         int ret;
2096
2097         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2098         if (ret < 0)
2099                 return ret;
2100
2101         return sprintf(buf, "%d\n", state);
2102 }
2103
2104 static ssize_t usb_rapid_charge_store(struct device *dev,
2105                                       struct device_attribute *attr,
2106                                       const char *buf, size_t count)
2107 {
2108         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2109         int state;
2110         int ret;
2111
2112         ret = kstrtoint(buf, 0, &state);
2113         if (ret)
2114                 return ret;
2115         if (state != 0 && state != 1)
2116                 return -EINVAL;
2117
2118         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2119         if (ret)
2120                 return ret;
2121
2122         return count;
2123 }
2124 static DEVICE_ATTR_RW(usb_rapid_charge);
2125
2126 static ssize_t usb_sleep_music_show(struct device *dev,
2127                                     struct device_attribute *attr, char *buf)
2128 {
2129         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2130         u32 state;
2131         int ret;
2132
2133         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2134         if (ret < 0)
2135                 return ret;
2136
2137         return sprintf(buf, "%d\n", state);
2138 }
2139
2140 static ssize_t usb_sleep_music_store(struct device *dev,
2141                                      struct device_attribute *attr,
2142                                      const char *buf, size_t count)
2143 {
2144         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2145         int state;
2146         int ret;
2147
2148         ret = kstrtoint(buf, 0, &state);
2149         if (ret)
2150                 return ret;
2151         if (state != 0 && state != 1)
2152                 return -EINVAL;
2153
2154         ret = toshiba_usb_sleep_music_set(toshiba, state);
2155         if (ret)
2156                 return ret;
2157
2158         return count;
2159 }
2160 static DEVICE_ATTR_RW(usb_sleep_music);
2161
2162 static ssize_t kbd_function_keys_show(struct device *dev,
2163                                       struct device_attribute *attr, char *buf)
2164 {
2165         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2166         int mode;
2167         int ret;
2168
2169         ret = toshiba_function_keys_get(toshiba, &mode);
2170         if (ret < 0)
2171                 return ret;
2172
2173         return sprintf(buf, "%d\n", mode);
2174 }
2175
2176 static ssize_t kbd_function_keys_store(struct device *dev,
2177                                        struct device_attribute *attr,
2178                                        const char *buf, size_t count)
2179 {
2180         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2181         int mode;
2182         int ret;
2183
2184         ret = kstrtoint(buf, 0, &mode);
2185         if (ret)
2186                 return ret;
2187         /*
2188          * Check for the function keys mode where:
2189          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2190          * 1 - Special functions (Opposite of the above setting)
2191          */
2192         if (mode != 0 && mode != 1)
2193                 return -EINVAL;
2194
2195         ret = toshiba_function_keys_set(toshiba, mode);
2196         if (ret)
2197                 return ret;
2198
2199         pr_info("Reboot for changes to KBD Function Keys to take effect");
2200
2201         return count;
2202 }
2203 static DEVICE_ATTR_RW(kbd_function_keys);
2204
2205 static ssize_t panel_power_on_show(struct device *dev,
2206                                    struct device_attribute *attr, char *buf)
2207 {
2208         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2209         u32 state;
2210         int ret;
2211
2212         ret = toshiba_panel_power_on_get(toshiba, &state);
2213         if (ret < 0)
2214                 return ret;
2215
2216         return sprintf(buf, "%d\n", state);
2217 }
2218
2219 static ssize_t panel_power_on_store(struct device *dev,
2220                                     struct device_attribute *attr,
2221                                     const char *buf, size_t count)
2222 {
2223         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2224         int state;
2225         int ret;
2226
2227         ret = kstrtoint(buf, 0, &state);
2228         if (ret)
2229                 return ret;
2230         if (state != 0 && state != 1)
2231                 return -EINVAL;
2232
2233         ret = toshiba_panel_power_on_set(toshiba, state);
2234         if (ret)
2235                 return ret;
2236
2237         pr_info("Reboot for changes to Panel Power ON to take effect");
2238
2239         return count;
2240 }
2241 static DEVICE_ATTR_RW(panel_power_on);
2242
2243 static ssize_t usb_three_show(struct device *dev,
2244                               struct device_attribute *attr, char *buf)
2245 {
2246         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2247         u32 state;
2248         int ret;
2249
2250         ret = toshiba_usb_three_get(toshiba, &state);
2251         if (ret < 0)
2252                 return ret;
2253
2254         return sprintf(buf, "%d\n", state);
2255 }
2256
2257 static ssize_t usb_three_store(struct device *dev,
2258                                struct device_attribute *attr,
2259                                const char *buf, size_t count)
2260 {
2261         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2262         int state;
2263         int ret;
2264
2265         ret = kstrtoint(buf, 0, &state);
2266         if (ret)
2267                 return ret;
2268         /*
2269          * Check for USB 3 mode where:
2270          * 0 - Disabled (Acts like a USB 2 port, saving power)
2271          * 1 - Enabled
2272          */
2273         if (state != 0 && state != 1)
2274                 return -EINVAL;
2275
2276         ret = toshiba_usb_three_set(toshiba, state);
2277         if (ret)
2278                 return ret;
2279
2280         pr_info("Reboot for changes to USB 3 to take effect");
2281
2282         return count;
2283 }
2284 static DEVICE_ATTR_RW(usb_three);
2285
2286 static ssize_t cooling_method_show(struct device *dev,
2287                                    struct device_attribute *attr, char *buf)
2288 {
2289         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2290         int state;
2291         int ret;
2292
2293         ret = toshiba_cooling_method_get(toshiba, &state);
2294         if (ret < 0)
2295                 return ret;
2296
2297         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2298 }
2299
2300 static ssize_t cooling_method_store(struct device *dev,
2301                                     struct device_attribute *attr,
2302                                     const char *buf, size_t count)
2303 {
2304         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2305         int state;
2306         int ret;
2307
2308         ret = kstrtoint(buf, 0, &state);
2309         if (ret)
2310                 return ret;
2311
2312         /*
2313          * Check for supported values
2314          * Depending on the laptop model, some only support these two:
2315          * 0 - Maximum Performance
2316          * 1 - Battery Optimized
2317          *
2318          * While some others support all three methods:
2319          * 0 - Maximum Performance
2320          * 1 - Performance
2321          * 2 - Battery Optimized
2322          */
2323         if (state < 0 || state > toshiba->max_cooling_method)
2324                 return -EINVAL;
2325
2326         ret = toshiba_cooling_method_set(toshiba, state);
2327         if (ret)
2328                 return ret;
2329
2330         return count;
2331 }
2332 static DEVICE_ATTR_RW(cooling_method);
2333
2334 static struct attribute *toshiba_attributes[] = {
2335         &dev_attr_version.attr,
2336         &dev_attr_fan.attr,
2337         &dev_attr_kbd_backlight_mode.attr,
2338         &dev_attr_kbd_type.attr,
2339         &dev_attr_available_kbd_modes.attr,
2340         &dev_attr_kbd_backlight_timeout.attr,
2341         &dev_attr_touchpad.attr,
2342         &dev_attr_usb_sleep_charge.attr,
2343         &dev_attr_sleep_functions_on_battery.attr,
2344         &dev_attr_usb_rapid_charge.attr,
2345         &dev_attr_usb_sleep_music.attr,
2346         &dev_attr_kbd_function_keys.attr,
2347         &dev_attr_panel_power_on.attr,
2348         &dev_attr_usb_three.attr,
2349         &dev_attr_cooling_method.attr,
2350         NULL,
2351 };
2352
2353 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2354                                         struct attribute *attr, int idx)
2355 {
2356         struct device *dev = kobj_to_dev(kobj);
2357         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2358         bool exists = true;
2359
2360         if (attr == &dev_attr_fan.attr)
2361                 exists = (drv->fan_supported) ? true : false;
2362         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2363                 exists = (drv->kbd_illum_supported) ? true : false;
2364         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2365                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2366         else if (attr == &dev_attr_touchpad.attr)
2367                 exists = (drv->touchpad_supported) ? true : false;
2368         else if (attr == &dev_attr_usb_sleep_charge.attr)
2369                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2370         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2371                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2372         else if (attr == &dev_attr_usb_rapid_charge.attr)
2373                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2374         else if (attr == &dev_attr_usb_sleep_music.attr)
2375                 exists = (drv->usb_sleep_music_supported) ? true : false;
2376         else if (attr == &dev_attr_kbd_function_keys.attr)
2377                 exists = (drv->kbd_function_keys_supported) ? true : false;
2378         else if (attr == &dev_attr_panel_power_on.attr)
2379                 exists = (drv->panel_power_on_supported) ? true : false;
2380         else if (attr == &dev_attr_usb_three.attr)
2381                 exists = (drv->usb_three_supported) ? true : false;
2382         else if (attr == &dev_attr_cooling_method.attr)
2383                 exists = (drv->cooling_method_supported) ? true : false;
2384
2385         return exists ? attr->mode : 0;
2386 }
2387
2388 static const struct attribute_group toshiba_attr_group = {
2389         .is_visible = toshiba_sysfs_is_visible,
2390         .attrs = toshiba_attributes,
2391 };
2392
2393 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2394 {
2395         /* Update the sysfs entries */
2396         if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2397                                &toshiba_attr_group))
2398                 pr_err("Unable to update sysfs entries\n");
2399
2400         /* Notify LED subsystem about keyboard backlight change */
2401         if (toshiba_acpi->kbd_type == 2 &&
2402             toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2403                 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2404                                 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2405                                 LED_FULL : LED_OFF);
2406
2407         /* Emulate the keyboard backlight event */
2408         acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2409                                         dev_name(&toshiba_acpi->acpi_dev->dev),
2410                                         0x92, 0);
2411 }
2412
2413 /*
2414  * IIO device
2415  */
2416
2417 enum toshiba_iio_accel_chan {
2418         AXIS_X,
2419         AXIS_Y,
2420         AXIS_Z
2421 };
2422
2423 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2424 {
2425         u32 xyval, zval;
2426         int ret;
2427
2428         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2429         if (ret < 0)
2430                 return ret;
2431
2432         switch (chan) {
2433         case AXIS_X:
2434                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2435                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2436         case AXIS_Y:
2437                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2438                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2439                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2440         case AXIS_Z:
2441                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2442                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2443         }
2444
2445         return ret;
2446 }
2447
2448 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2449                                       struct iio_chan_spec const *chan,
2450                                       int *val, int *val2, long mask)
2451 {
2452         int ret;
2453
2454         switch (mask) {
2455         case IIO_CHAN_INFO_RAW:
2456                 ret = toshiba_iio_accel_get_axis(chan->channel);
2457                 if (ret == -EIO || ret == -ENODEV)
2458                         return ret;
2459
2460                 *val = ret;
2461
2462                 return IIO_VAL_INT;
2463         }
2464
2465         return -EINVAL;
2466 }
2467
2468 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2469         .type = IIO_ACCEL, \
2470         .modified = 1, \
2471         .channel = chan, \
2472         .channel2 = IIO_MOD_##axis, \
2473         .output = 1, \
2474         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2475 }
2476
2477 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2478         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2479         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2480         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2481 };
2482
2483 static const struct iio_info toshiba_iio_accel_info = {
2484         .read_raw = &toshiba_iio_accel_read_raw,
2485 };
2486
2487 /*
2488  * Misc device
2489  */
2490 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2491 {
2492         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2493                               regs->edx, regs->esi, regs->edi };
2494         u32 out[TCI_WORDS];
2495         acpi_status status;
2496
2497         status = tci_raw(toshiba_acpi, in, out);
2498         if (ACPI_FAILURE(status)) {
2499                 pr_err("ACPI call to query SMM registers failed\n");
2500                 return -EIO;
2501         }
2502
2503         /* Fillout the SMM struct with the TCI call results */
2504         regs->eax = out[0];
2505         regs->ebx = out[1];
2506         regs->ecx = out[2];
2507         regs->edx = out[3];
2508         regs->esi = out[4];
2509         regs->edi = out[5];
2510
2511         return 0;
2512 }
2513
2514 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2515                                unsigned long arg)
2516 {
2517         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2518         SMMRegisters regs;
2519         int ret;
2520
2521         if (!argp)
2522                 return -EINVAL;
2523
2524         switch (cmd) {
2525         case TOSH_SMM:
2526                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2527                         return -EFAULT;
2528                 ret = toshiba_acpi_smm_bridge(&regs);
2529                 if (ret)
2530                         return ret;
2531                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2532                         return -EFAULT;
2533                 break;
2534         case TOSHIBA_ACPI_SCI:
2535                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2536                         return -EFAULT;
2537                 /* Ensure we are being called with a SCI_{GET, SET} register */
2538                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2539                         return -EINVAL;
2540                 if (!sci_open(toshiba_acpi))
2541                         return -EIO;
2542                 ret = toshiba_acpi_smm_bridge(&regs);
2543                 sci_close(toshiba_acpi);
2544                 if (ret)
2545                         return ret;
2546                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2547                         return -EFAULT;
2548                 break;
2549         default:
2550                 return -EINVAL;
2551         }
2552
2553         return 0;
2554 }
2555
2556 static const struct file_operations toshiba_acpi_fops = {
2557         .owner          = THIS_MODULE,
2558         .unlocked_ioctl = toshiba_acpi_ioctl,
2559         .llseek         = noop_llseek,
2560 };
2561
2562 /*
2563  * WWAN RFKill handlers
2564  */
2565 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2566 {
2567         struct toshiba_acpi_dev *dev = data;
2568         int ret;
2569
2570         ret = toshiba_wireless_status(dev);
2571         if (ret)
2572                 return ret;
2573
2574         if (!dev->killswitch)
2575                 return 0;
2576
2577         return toshiba_wwan_set(dev, !blocked);
2578 }
2579
2580 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2581 {
2582         struct toshiba_acpi_dev *dev = data;
2583
2584         if (toshiba_wireless_status(dev))
2585                 return;
2586
2587         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2588 }
2589
2590 static const struct rfkill_ops wwan_rfk_ops = {
2591         .set_block = toshiba_acpi_wwan_set_block,
2592         .poll = toshiba_acpi_wwan_poll,
2593 };
2594
2595 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2596 {
2597         int ret = toshiba_wireless_status(dev);
2598
2599         if (ret)
2600                 return ret;
2601
2602         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2603                                      &dev->acpi_dev->dev,
2604                                      RFKILL_TYPE_WWAN,
2605                                      &wwan_rfk_ops,
2606                                      dev);
2607         if (!dev->wwan_rfk) {
2608                 pr_err("Unable to allocate WWAN rfkill device\n");
2609                 return -ENOMEM;
2610         }
2611
2612         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2613
2614         ret = rfkill_register(dev->wwan_rfk);
2615         if (ret) {
2616                 pr_err("Unable to register WWAN rfkill device\n");
2617                 rfkill_destroy(dev->wwan_rfk);
2618         }
2619
2620         return ret;
2621 }
2622
2623 /*
2624  * Hotkeys
2625  */
2626 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2627 {
2628         acpi_status status;
2629         u32 result;
2630
2631         status = acpi_evaluate_object(dev->acpi_dev->handle,
2632                                       "ENAB", NULL, NULL);
2633         if (ACPI_FAILURE(status))
2634                 return -ENODEV;
2635
2636         /*
2637          * Enable the "Special Functions" mode only if they are
2638          * supported and if they are activated.
2639          */
2640         if (dev->kbd_function_keys_supported && dev->special_functions)
2641                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2642                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2643         else
2644                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2645
2646         if (result == TOS_FAILURE)
2647                 return -EIO;
2648         else if (result == TOS_NOT_SUPPORTED)
2649                 return -ENODEV;
2650
2651         return 0;
2652 }
2653
2654 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2655                                       struct serio *port)
2656 {
2657         if (str & I8042_STR_AUXDATA)
2658                 return false;
2659
2660         if (unlikely(data == 0xe0))
2661                 return false;
2662
2663         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2664                 schedule_work(&toshiba_acpi->hotkey_work);
2665                 return true;
2666         }
2667
2668         return false;
2669 }
2670
2671 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2672 {
2673         acpi_handle ec_handle = ec_get_handle();
2674         acpi_status status;
2675
2676         if (!ec_handle)
2677                 return;
2678
2679         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2680         if (ACPI_FAILURE(status))
2681                 pr_err("ACPI NTFY method execution failed\n");
2682 }
2683
2684 /*
2685  * Returns hotkey scancode, or < 0 on failure.
2686  */
2687 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2688 {
2689         unsigned long long value;
2690         acpi_status status;
2691
2692         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2693                                       NULL, &value);
2694         if (ACPI_FAILURE(status)) {
2695                 pr_err("ACPI INFO method execution failed\n");
2696                 return -EIO;
2697         }
2698
2699         return value;
2700 }
2701
2702 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2703                                        int scancode)
2704 {
2705         if (scancode == 0x100)
2706                 return;
2707
2708         /* Act on key press; ignore key release */
2709         if (scancode & 0x80)
2710                 return;
2711
2712         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2713                 pr_info("Unknown key %x\n", scancode);
2714 }
2715
2716 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2717 {
2718         if (dev->info_supported) {
2719                 int scancode = toshiba_acpi_query_hotkey(dev);
2720
2721                 if (scancode < 0) {
2722                         pr_err("Failed to query hotkey event\n");
2723                 } else if (scancode != 0) {
2724                         toshiba_acpi_report_hotkey(dev, scancode);
2725                         dev->key_event_valid = 1;
2726                         dev->last_key_event = scancode;
2727                 }
2728         } else if (dev->system_event_supported) {
2729                 u32 result;
2730                 u32 value;
2731                 int retries = 3;
2732
2733                 do {
2734                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2735                         switch (result) {
2736                         case TOS_SUCCESS:
2737                                 toshiba_acpi_report_hotkey(dev, (int)value);
2738                                 dev->key_event_valid = 1;
2739                                 dev->last_key_event = value;
2740                                 break;
2741                         case TOS_NOT_SUPPORTED:
2742                                 /*
2743                                  * This is a workaround for an unresolved
2744                                  * issue on some machines where system events
2745                                  * sporadically become disabled.
2746                                  */
2747                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2748                                 if (result == TOS_SUCCESS)
2749                                         pr_notice("Re-enabled hotkeys\n");
2750                                 fallthrough;
2751                         default:
2752                                 retries--;
2753                                 break;
2754                         }
2755                 } while (retries && result != TOS_FIFO_EMPTY);
2756         }
2757 }
2758
2759 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2760 {
2761         const struct key_entry *keymap = toshiba_acpi_keymap;
2762         acpi_handle ec_handle;
2763         int error;
2764
2765         if (disable_hotkeys) {
2766                 pr_info("Hotkeys disabled by module parameter\n");
2767                 return 0;
2768         }
2769
2770         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2771                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2772                 return 0;
2773         }
2774
2775         error = toshiba_acpi_enable_hotkeys(dev);
2776         if (error)
2777                 return error;
2778
2779         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2780                 pr_notice("Unable to query Hotkey Event Type\n");
2781
2782         dev->hotkey_dev = input_allocate_device();
2783         if (!dev->hotkey_dev)
2784                 return -ENOMEM;
2785
2786         dev->hotkey_dev->name = "Toshiba input device";
2787         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2788         dev->hotkey_dev->id.bustype = BUS_HOST;
2789
2790         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2791             !dev->kbd_function_keys_supported)
2792                 keymap = toshiba_acpi_keymap;
2793         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2794                  dev->kbd_function_keys_supported)
2795                 keymap = toshiba_acpi_alt_keymap;
2796         else
2797                 pr_info("Unknown event type received %x\n",
2798                         dev->hotkey_event_type);
2799         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2800         if (error)
2801                 goto err_free_dev;
2802
2803         /*
2804          * For some machines the SCI responsible for providing hotkey
2805          * notification doesn't fire. We can trigger the notification
2806          * whenever the Fn key is pressed using the NTFY method, if
2807          * supported, so if it's present set up an i8042 key filter
2808          * for this purpose.
2809          */
2810         ec_handle = ec_get_handle();
2811         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2812                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2813
2814                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2815                 if (error) {
2816                         pr_err("Error installing key filter\n");
2817                         goto err_free_dev;
2818                 }
2819
2820                 dev->ntfy_supported = 1;
2821         }
2822
2823         /*
2824          * Determine hotkey query interface. Prefer using the INFO
2825          * method when it is available.
2826          */
2827         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2828                 dev->info_supported = 1;
2829         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2830                 dev->system_event_supported = 1;
2831
2832         if (!dev->info_supported && !dev->system_event_supported) {
2833                 pr_warn("No hotkey query interface found\n");
2834                 error = -EINVAL;
2835                 goto err_remove_filter;
2836         }
2837
2838         error = input_register_device(dev->hotkey_dev);
2839         if (error) {
2840                 pr_info("Unable to register input device\n");
2841                 goto err_remove_filter;
2842         }
2843
2844         return 0;
2845
2846  err_remove_filter:
2847         if (dev->ntfy_supported)
2848                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2849  err_free_dev:
2850         input_free_device(dev->hotkey_dev);
2851         dev->hotkey_dev = NULL;
2852         return error;
2853 }
2854
2855 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2856 {
2857         struct backlight_properties props;
2858         int brightness;
2859         int ret;
2860
2861         /*
2862          * Some machines don't support the backlight methods at all, and
2863          * others support it read-only. Either of these is pretty useless,
2864          * so only register the backlight device if the backlight method
2865          * supports both reads and writes.
2866          */
2867         brightness = __get_lcd_brightness(dev);
2868         if (brightness < 0)
2869                 return 0;
2870         /*
2871          * If transflective backlight is supported and the brightness is zero
2872          * (lowest brightness level), the set_lcd_brightness function will
2873          * activate the transflective backlight, making the LCD appear to be
2874          * turned off, simply increment the brightness level to avoid that.
2875          */
2876         if (dev->tr_backlight_supported && brightness == 0)
2877                 brightness++;
2878         ret = set_lcd_brightness(dev, brightness);
2879         if (ret) {
2880                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2881                 return 0;
2882         }
2883
2884         /*
2885          * Tell acpi-video-detect code to prefer vendor backlight on all
2886          * systems with transflective backlight and on dmi matched systems.
2887          */
2888         if (dev->tr_backlight_supported ||
2889             dmi_check_system(toshiba_vendor_backlight_dmi))
2890                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2891
2892         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2893                 return 0;
2894
2895         memset(&props, 0, sizeof(props));
2896         props.type = BACKLIGHT_PLATFORM;
2897         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2898
2899         /* Adding an extra level and having 0 change to transflective mode */
2900         if (dev->tr_backlight_supported)
2901                 props.max_brightness++;
2902
2903         dev->backlight_dev = backlight_device_register("toshiba",
2904                                                        &dev->acpi_dev->dev,
2905                                                        dev,
2906                                                        &toshiba_backlight_data,
2907                                                        &props);
2908         if (IS_ERR(dev->backlight_dev)) {
2909                 ret = PTR_ERR(dev->backlight_dev);
2910                 pr_err("Could not register toshiba backlight device\n");
2911                 dev->backlight_dev = NULL;
2912                 return ret;
2913         }
2914
2915         dev->backlight_dev->props.brightness = brightness;
2916         return 0;
2917 }
2918
2919 static void print_supported_features(struct toshiba_acpi_dev *dev)
2920 {
2921         pr_info("Supported laptop features:");
2922
2923         if (dev->hotkey_dev)
2924                 pr_cont(" hotkeys");
2925         if (dev->backlight_dev)
2926                 pr_cont(" backlight");
2927         if (dev->video_supported)
2928                 pr_cont(" video-out");
2929         if (dev->fan_supported)
2930                 pr_cont(" fan");
2931         if (dev->tr_backlight_supported)
2932                 pr_cont(" transflective-backlight");
2933         if (dev->illumination_supported)
2934                 pr_cont(" illumination");
2935         if (dev->kbd_illum_supported)
2936                 pr_cont(" keyboard-backlight");
2937         if (dev->touchpad_supported)
2938                 pr_cont(" touchpad");
2939         if (dev->eco_supported)
2940                 pr_cont(" eco-led");
2941         if (dev->accelerometer_supported)
2942                 pr_cont(" accelerometer-axes");
2943         if (dev->usb_sleep_charge_supported)
2944                 pr_cont(" usb-sleep-charge");
2945         if (dev->usb_rapid_charge_supported)
2946                 pr_cont(" usb-rapid-charge");
2947         if (dev->usb_sleep_music_supported)
2948                 pr_cont(" usb-sleep-music");
2949         if (dev->kbd_function_keys_supported)
2950                 pr_cont(" special-function-keys");
2951         if (dev->panel_power_on_supported)
2952                 pr_cont(" panel-power-on");
2953         if (dev->usb_three_supported)
2954                 pr_cont(" usb3");
2955         if (dev->wwan_supported)
2956                 pr_cont(" wwan");
2957         if (dev->cooling_method_supported)
2958                 pr_cont(" cooling-method");
2959
2960         pr_cont("\n");
2961 }
2962
2963 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2964 {
2965         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2966
2967         misc_deregister(&dev->miscdev);
2968
2969         remove_toshiba_proc_entries(dev);
2970
2971         if (dev->accelerometer_supported && dev->indio_dev) {
2972                 iio_device_unregister(dev->indio_dev);
2973                 iio_device_free(dev->indio_dev);
2974         }
2975
2976         if (dev->sysfs_created)
2977                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2978                                    &toshiba_attr_group);
2979
2980         if (dev->ntfy_supported) {
2981                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2982                 cancel_work_sync(&dev->hotkey_work);
2983         }
2984
2985         if (dev->hotkey_dev)
2986                 input_unregister_device(dev->hotkey_dev);
2987
2988         backlight_device_unregister(dev->backlight_dev);
2989
2990         led_classdev_unregister(&dev->led_dev);
2991         led_classdev_unregister(&dev->kbd_led);
2992         led_classdev_unregister(&dev->eco_led);
2993
2994         if (dev->wwan_rfk) {
2995                 rfkill_unregister(dev->wwan_rfk);
2996                 rfkill_destroy(dev->wwan_rfk);
2997         }
2998
2999         if (toshiba_acpi)
3000                 toshiba_acpi = NULL;
3001
3002         kfree(dev);
3003
3004         return 0;
3005 }
3006
3007 static const char *find_hci_method(acpi_handle handle)
3008 {
3009         if (acpi_has_method(handle, "GHCI"))
3010                 return "GHCI";
3011
3012         if (acpi_has_method(handle, "SPFC"))
3013                 return "SPFC";
3014
3015         return NULL;
3016 }
3017
3018 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3019 {
3020         struct toshiba_acpi_dev *dev;
3021         const char *hci_method;
3022         u32 dummy;
3023         int ret = 0;
3024
3025         if (toshiba_acpi)
3026                 return -EBUSY;
3027
3028         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3029                TOSHIBA_ACPI_VERSION);
3030
3031         hci_method = find_hci_method(acpi_dev->handle);
3032         if (!hci_method) {
3033                 pr_err("HCI interface not found\n");
3034                 return -ENODEV;
3035         }
3036
3037         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3038         if (!dev)
3039                 return -ENOMEM;
3040         dev->acpi_dev = acpi_dev;
3041         dev->method_hci = hci_method;
3042         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3043         dev->miscdev.name = "toshiba_acpi";
3044         dev->miscdev.fops = &toshiba_acpi_fops;
3045
3046         ret = misc_register(&dev->miscdev);
3047         if (ret) {
3048                 pr_err("Failed to register miscdevice\n");
3049                 kfree(dev);
3050                 return ret;
3051         }
3052
3053         acpi_dev->driver_data = dev;
3054         dev_set_drvdata(&acpi_dev->dev, dev);
3055
3056         /* Query the BIOS for supported features */
3057
3058         /*
3059          * The "Special Functions" are always supported by the laptops
3060          * with the new keyboard layout, query for its presence to help
3061          * determine the keymap layout to use.
3062          */
3063         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3064         dev->kbd_function_keys_supported = !ret;
3065
3066         dev->hotkey_event_type = 0;
3067         if (toshiba_acpi_setup_keyboard(dev))
3068                 pr_info("Unable to activate hotkeys\n");
3069
3070         /* Determine whether or not BIOS supports transflective backlight */
3071         ret = get_tr_backlight_status(dev, &dummy);
3072         dev->tr_backlight_supported = !ret;
3073
3074         ret = toshiba_acpi_setup_backlight(dev);
3075         if (ret)
3076                 goto error;
3077
3078         toshiba_illumination_available(dev);
3079         if (dev->illumination_supported) {
3080                 dev->led_dev.name = "toshiba::illumination";
3081                 dev->led_dev.max_brightness = 1;
3082                 dev->led_dev.brightness_set = toshiba_illumination_set;
3083                 dev->led_dev.brightness_get = toshiba_illumination_get;
3084                 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3085         }
3086
3087         toshiba_eco_mode_available(dev);
3088         if (dev->eco_supported) {
3089                 dev->eco_led.name = "toshiba::eco_mode";
3090                 dev->eco_led.max_brightness = 1;
3091                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3092                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3093                 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3094         }
3095
3096         toshiba_kbd_illum_available(dev);
3097         /*
3098          * Only register the LED if KBD illumination is supported
3099          * and the keyboard backlight operation mode is set to FN-Z
3100          * or we detect a second gen keyboard backlight
3101          */
3102         if (dev->kbd_illum_supported &&
3103             (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3104                 dev->kbd_led.name = "toshiba::kbd_backlight";
3105                 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3106                 dev->kbd_led.max_brightness = 1;
3107                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3108                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3109                 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3110         }
3111
3112         ret = toshiba_touchpad_get(dev, &dummy);
3113         dev->touchpad_supported = !ret;
3114
3115         toshiba_accelerometer_available(dev);
3116         if (dev->accelerometer_supported) {
3117                 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3118                 if (!dev->indio_dev) {
3119                         pr_err("Unable to allocate iio device\n");
3120                         goto iio_error;
3121                 }
3122
3123                 pr_info("Registering Toshiba accelerometer iio device\n");
3124
3125                 dev->indio_dev->info = &toshiba_iio_accel_info;
3126                 dev->indio_dev->name = "Toshiba accelerometer";
3127                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3128                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3129                 dev->indio_dev->num_channels =
3130                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3131
3132                 ret = iio_device_register(dev->indio_dev);
3133                 if (ret < 0) {
3134                         pr_err("Unable to register iio device\n");
3135                         iio_device_free(dev->indio_dev);
3136                 }
3137         }
3138 iio_error:
3139
3140         toshiba_usb_sleep_charge_available(dev);
3141
3142         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3143         dev->usb_rapid_charge_supported = !ret;
3144
3145         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3146         dev->usb_sleep_music_supported = !ret;
3147
3148         ret = toshiba_panel_power_on_get(dev, &dummy);
3149         dev->panel_power_on_supported = !ret;
3150
3151         ret = toshiba_usb_three_get(dev, &dummy);
3152         dev->usb_three_supported = !ret;
3153
3154         ret = get_video_status(dev, &dummy);
3155         dev->video_supported = !ret;
3156
3157         ret = get_fan_status(dev, &dummy);
3158         dev->fan_supported = !ret;
3159
3160         toshiba_wwan_available(dev);
3161         if (dev->wwan_supported)
3162                 toshiba_acpi_setup_wwan_rfkill(dev);
3163
3164         toshiba_cooling_method_available(dev);
3165
3166         print_supported_features(dev);
3167
3168         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3169                                  &toshiba_attr_group);
3170         if (ret) {
3171                 dev->sysfs_created = 0;
3172                 goto error;
3173         }
3174         dev->sysfs_created = !ret;
3175
3176         create_toshiba_proc_entries(dev);
3177
3178         toshiba_acpi = dev;
3179
3180         return 0;
3181
3182 error:
3183         toshiba_acpi_remove(acpi_dev);
3184         return ret;
3185 }
3186
3187 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3188 {
3189         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3190
3191         switch (event) {
3192         case 0x80: /* Hotkeys and some system events */
3193                 /*
3194                  * Machines with this WMI GUID aren't supported due to bugs in
3195                  * their AML.
3196                  *
3197                  * Return silently to avoid triggering a netlink event.
3198                  */
3199                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3200                         return;
3201                 toshiba_acpi_process_hotkeys(dev);
3202                 break;
3203         case 0x81: /* Dock events */
3204         case 0x82:
3205         case 0x83:
3206                 pr_info("Dock event received %x\n", event);
3207                 break;
3208         case 0x88: /* Thermal events */
3209                 pr_info("Thermal event received\n");
3210                 break;
3211         case 0x8f: /* LID closed */
3212         case 0x90: /* LID is closed and Dock has been ejected */
3213                 break;
3214         case 0x8c: /* SATA power events */
3215         case 0x8b:
3216                 pr_info("SATA power event received %x\n", event);
3217                 break;
3218         case 0x92: /* Keyboard backlight mode changed */
3219                 dev->kbd_event_generated = true;
3220                 /* Update sysfs entries */
3221                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3222                                        &toshiba_attr_group))
3223                         pr_err("Unable to update sysfs entries\n");
3224                 /* Notify LED subsystem about keyboard backlight change */
3225                 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3226                         led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3227                                         (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3228                                         LED_FULL : LED_OFF);
3229                 break;
3230         case 0x85: /* Unknown */
3231         case 0x8d: /* Unknown */
3232         case 0x8e: /* Unknown */
3233         case 0x94: /* Unknown */
3234         case 0x95: /* Unknown */
3235         default:
3236                 pr_info("Unknown event received %x\n", event);
3237                 break;
3238         }
3239
3240         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3241                                         dev_name(&acpi_dev->dev),
3242                                         event, (event == 0x80) ?
3243                                         dev->last_key_event : 0);
3244 }
3245
3246 #ifdef CONFIG_PM_SLEEP
3247 static int toshiba_acpi_suspend(struct device *device)
3248 {
3249         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3250
3251         if (dev->hotkey_dev) {
3252                 u32 result;
3253
3254                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3255                 if (result != TOS_SUCCESS)
3256                         pr_info("Unable to disable hotkeys\n");
3257         }
3258
3259         return 0;
3260 }
3261
3262 static int toshiba_acpi_resume(struct device *device)
3263 {
3264         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3265
3266         if (dev->hotkey_dev) {
3267                 if (toshiba_acpi_enable_hotkeys(dev))
3268                         pr_info("Unable to re-enable hotkeys\n");
3269         }
3270
3271         if (dev->wwan_rfk) {
3272                 if (!toshiba_wireless_status(dev))
3273                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3274         }
3275
3276         return 0;
3277 }
3278 #endif
3279
3280 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3281                          toshiba_acpi_suspend, toshiba_acpi_resume);
3282
3283 static struct acpi_driver toshiba_acpi_driver = {
3284         .name   = "Toshiba ACPI driver",
3285         .owner  = THIS_MODULE,
3286         .ids    = toshiba_device_ids,
3287         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3288         .ops    = {
3289                 .add            = toshiba_acpi_add,
3290                 .remove         = toshiba_acpi_remove,
3291                 .notify         = toshiba_acpi_notify,
3292         },
3293         .drv.pm = &toshiba_acpi_pm,
3294 };
3295
3296 static int __init toshiba_acpi_init(void)
3297 {
3298         int ret;
3299
3300         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3301         if (!toshiba_proc_dir) {
3302                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3303                 return -ENODEV;
3304         }
3305
3306         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3307         if (ret) {
3308                 pr_err("Failed to register ACPI driver: %d\n", ret);
3309                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3310         }
3311
3312         return ret;
3313 }
3314
3315 static void __exit toshiba_acpi_exit(void)
3316 {
3317         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3318         if (toshiba_proc_dir)
3319                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3320 }
3321
3322 module_init(toshiba_acpi_init);
3323 module_exit(toshiba_acpi_exit);