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 kbd_led_registered;
 209         bool illumination_led_registered;
 210         bool eco_led_registered;
 211         bool killswitch;
 212 };
 213
 214 static struct toshiba_acpi_dev *toshiba_acpi;
 215
 216 static bool disable_hotkeys;
 217 module_param(disable_hotkeys, bool, 0444);
 218 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 219
 220 static const struct acpi_device_id toshiba_device_ids[] = {
 221         {"TOS6200", 0},
 222         {"TOS6207", 0},
 223         {"TOS6208", 0},
 224         {"TOS1900", 0},
 225         {"", 0},
 226 };
 227 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 228
 229 static const struct key_entry toshiba_acpi_keymap[] = {
 230         { KE_KEY, 0x9e, { KEY_RFKILL } },
 231         { KE_KEY, 0x101, { KEY_MUTE } },
 232         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 233         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 234         { KE_KEY, 0x10f, { KEY_TAB } },
 235         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 236         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 237         { KE_KEY, 0x13b, { KEY_COFFEE } },
 238         { KE_KEY, 0x13c, { KEY_BATTERY } },
 239         { KE_KEY, 0x13d, { KEY_SLEEP } },
 240         { KE_KEY, 0x13e, { KEY_SUSPEND } },
 241         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 242         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 243         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 244         { KE_KEY, 0x142, { KEY_WLAN } },
 245         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 246         { KE_KEY, 0x17f, { KEY_FN } },
 247         { KE_KEY, 0xb05, { KEY_PROG2 } },
 248         { KE_KEY, 0xb06, { KEY_WWW } },
 249         { KE_KEY, 0xb07, { KEY_MAIL } },
 250         { KE_KEY, 0xb30, { KEY_STOP } },
 251         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 252         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
 253         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 254         { KE_KEY, 0xb5a, { KEY_MEDIA } },
 255         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 256         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 257         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 258         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 259         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 260         { KE_END, 0 },
 261 };
 262
 263 static const struct key_entry toshiba_acpi_alt_keymap[] = {
 264         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 265         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 266         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 267         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 268         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 269         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 270         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 271         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 272         { KE_KEY, 0x157, { KEY_MUTE } },
 273         { KE_KEY, 0x158, { KEY_WLAN } },
 274         { KE_END, 0 },
 275 };
 276
 277 /*
 278  * List of models which have a broken acpi-video backlight interface and thus
 279  * need to use the toshiba (vendor) interface instead.
 280  */
 281 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 282         {}
 283 };
 284
 285 /*
 286  * Utility
 287  */
 288
 289 static inline void _set_bit(u32 *word, u32 mask, int value)
 290 {
 291         *word = (*word & ~mask) | (mask * value);
 292 }
 293
 294 /*
 295  * ACPI interface wrappers
 296  */
 297
 298 static int write_acpi_int(const char *methodName, int val)
 299 {
 300         acpi_status status;
 301
 302         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 303         return (status == AE_OK) ? 0 : -EIO;
 304 }
 305
 306 /*
 307  * Perform a raw configuration call.  Here we don't care about input or output
 308  * buffer format.
 309  */
 310 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 311                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 312 {
 313         union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 314         struct acpi_object_list params;
 315         struct acpi_buffer results;
 316         acpi_status status;
 317         int i;
 318
 319         params.count = TCI_WORDS;
 320         params.pointer = in_objs;
 321         for (i = 0; i < TCI_WORDS; ++i) {
 322                 in_objs[i].type = ACPI_TYPE_INTEGER;
 323                 in_objs[i].integer.value = in[i];
 324         }
 325
 326         results.length = sizeof(out_objs);
 327         results.pointer = out_objs;
 328
 329         status = acpi_evaluate_object(dev->acpi_dev->handle,
 330                                       (char *)dev->method_hci, &params,
 331                                       &results);
 332         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 333                 for (i = 0; i < out_objs->package.count; ++i)
 334                         out[i] = out_objs->package.elements[i].integer.value;
 335         }
 336
 337         return status;
 338 }
 339
 340 /*
 341  * Common hci tasks
 342  *
 343  * In addition to the ACPI status, the HCI system returns a result which
 344  * may be useful (such as "not supported").
 345  */
 346
 347 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 348 {
 349         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 350         u32 out[TCI_WORDS];
 351         acpi_status status = tci_raw(dev, in, out);
 352
 353         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 354 }
 355
 356 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 357 {
 358         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 359         u32 out[TCI_WORDS];
 360         acpi_status status = tci_raw(dev, in, out);
 361
 362         if (ACPI_FAILURE(status))
 363                 return TOS_FAILURE;
 364
 365         *out1 = out[2];
 366
 367         return out[0];
 368 }
 369
 370 /*
 371  * Common sci tasks
 372  */
 373
 374 static int sci_open(struct toshiba_acpi_dev *dev)
 375 {
 376         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 377         u32 out[TCI_WORDS];
 378         acpi_status status = tci_raw(dev, in, out);
 379
 380         if  (ACPI_FAILURE(status)) {
 381                 pr_err("ACPI call to open SCI failed\n");
 382                 return 0;
 383         }
 384
 385         if (out[0] == TOS_OPEN_CLOSE_OK) {
 386                 return 1;
 387         } else if (out[0] == TOS_ALREADY_OPEN) {
 388                 pr_info("Toshiba SCI already opened\n");
 389                 return 1;
 390         } else if (out[0] == TOS_NOT_SUPPORTED) {
 391                 /*
 392                  * Some BIOSes do not have the SCI open/close functions
 393                  * implemented and return 0x8000 (Not Supported), failing to
 394                  * register some supported features.
 395                  *
 396                  * Simply return 1 if we hit those affected laptops to make the
 397                  * supported features work.
 398                  *
 399                  * In the case that some laptops really do not support the SCI,
 400                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 401                  * and thus, not registering support for the queried feature.
 402                  */
 403                 return 1;
 404         } else if (out[0] == TOS_NOT_PRESENT) {
 405                 pr_info("Toshiba SCI is not present\n");
 406         }
 407
 408         return 0;
 409 }
 410
 411 static void sci_close(struct toshiba_acpi_dev *dev)
 412 {
 413         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 414         u32 out[TCI_WORDS];
 415         acpi_status status = tci_raw(dev, in, out);
 416
 417         if (ACPI_FAILURE(status)) {
 418                 pr_err("ACPI call to close SCI failed\n");
 419                 return;
 420         }
 421
 422         if (out[0] == TOS_OPEN_CLOSE_OK)
 423                 return;
 424         else if (out[0] == TOS_NOT_OPENED)
 425                 pr_info("Toshiba SCI not opened\n");
 426         else if (out[0] == TOS_NOT_PRESENT)
 427                 pr_info("Toshiba SCI is not present\n");
 428 }
 429
 430 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 431 {
 432         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 433         u32 out[TCI_WORDS];
 434         acpi_status status = tci_raw(dev, in, out);
 435
 436         if (ACPI_FAILURE(status))
 437                 return TOS_FAILURE;
 438
 439         *out1 = out[2];
 440
 441         return out[0];
 442 }
 443
 444 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 445 {
 446         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 447         u32 out[TCI_WORDS];
 448         acpi_status status = tci_raw(dev, in, out);
 449
 450         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 451 }
 452
 453 /* Illumination support */
 454 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 455 {
 456         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 457         u32 out[TCI_WORDS];
 458         acpi_status status;
 459
 460         dev->illumination_supported = 0;
 461         dev->illumination_led_registered = false;
 462
 463         if (!sci_open(dev))
 464                 return;
 465
 466         status = tci_raw(dev, in, out);
 467         sci_close(dev);
 468         if (ACPI_FAILURE(status)) {
 469                 pr_err("ACPI call to query Illumination support failed\n");
 470                 return;
 471         }
 472
 473         if (out[0] != TOS_SUCCESS)
 474                 return;
 475
 476         dev->illumination_supported = 1;
 477 }
 478
 479 static void toshiba_illumination_set(struct led_classdev *cdev,
 480                                      enum led_brightness brightness)
 481 {
 482         struct toshiba_acpi_dev *dev = container_of(cdev,
 483                         struct toshiba_acpi_dev, led_dev);
 484         u32 result;
 485         u32 state;
 486
 487         /* First request : initialize communication. */
 488         if (!sci_open(dev))
 489                 return;
 490
 491         /* Switch the illumination on/off */
 492         state = brightness ? 1 : 0;
 493         result = sci_write(dev, SCI_ILLUMINATION, state);
 494         sci_close(dev);
 495         if (result == TOS_FAILURE)
 496                 pr_err("ACPI call for illumination failed\n");
 497 }
 498
 499 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 500 {
 501         struct toshiba_acpi_dev *dev = container_of(cdev,
 502                         struct toshiba_acpi_dev, led_dev);
 503         u32 result;
 504         u32 state;
 505
 506         /* First request : initialize communication. */
 507         if (!sci_open(dev))
 508                 return LED_OFF;
 509
 510         /* Check the illumination */
 511         result = sci_read(dev, SCI_ILLUMINATION, &state);
 512         sci_close(dev);
 513         if (result == TOS_FAILURE) {
 514                 pr_err("ACPI call for illumination failed\n");
 515                 return LED_OFF;
 516         } else if (result != TOS_SUCCESS) {
 517                 return LED_OFF;
 518         }
 519
 520         return state ? LED_FULL : LED_OFF;
 521 }
 522
 523 /* KBD Illumination */
 524 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 525 {
 526         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 527         u32 out[TCI_WORDS];
 528         acpi_status status;
 529
 530         dev->kbd_illum_supported = 0;
 531         dev->kbd_led_registered = false;
 532         dev->kbd_event_generated = false;
 533
 534         if (!sci_open(dev))
 535                 return;
 536
 537         status = tci_raw(dev, in, out);
 538         sci_close(dev);
 539         if (ACPI_FAILURE(status)) {
 540                 pr_err("ACPI call to query kbd illumination support failed\n");
 541                 return;
 542         }
 543
 544         if (out[0] != TOS_SUCCESS)
 545                 return;
 546
 547         /*
 548          * Check for keyboard backlight timeout max value,
 549          * previous kbd backlight implementation set this to
 550          * 0x3c0003, and now the new implementation set this
 551          * to 0x3c001a, use this to distinguish between them.
 552          */
 553         if (out[3] == SCI_KBD_TIME_MAX)
 554                 dev->kbd_type = 2;
 555         else
 556                 dev->kbd_type = 1;
 557         /* Get the current keyboard backlight mode */
 558         dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 559         /* Get the current time (1-60 seconds) */
 560         dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 561         /* Flag as supported */
 562         dev->kbd_illum_supported = 1;
 563 }
 564
 565 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 566 {
 567         u32 result;
 568
 569         if (!sci_open(dev))
 570                 return -EIO;
 571
 572         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 573         sci_close(dev);
 574         if (result == TOS_FAILURE)
 575                 pr_err("ACPI call to set KBD backlight status failed\n");
 576         else if (result == TOS_NOT_SUPPORTED)
 577                 return -ENODEV;
 578
 579         return result == TOS_SUCCESS ? 0 : -EIO;
 580 }
 581
 582 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 583 {
 584         u32 result;
 585
 586         if (!sci_open(dev))
 587                 return -EIO;
 588
 589         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 590         sci_close(dev);
 591         if (result == TOS_FAILURE)
 592                 pr_err("ACPI call to get KBD backlight status failed\n");
 593         else if (result == TOS_NOT_SUPPORTED)
 594                 return -ENODEV;
 595
 596         return result == TOS_SUCCESS ? 0 : -EIO;
 597 }
 598
 599 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 600 {
 601         struct toshiba_acpi_dev *dev = container_of(cdev,
 602                         struct toshiba_acpi_dev, kbd_led);
 603         u32 result;
 604         u32 state;
 605
 606         /* Check the keyboard backlight state */
 607         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 608         if (result == TOS_FAILURE) {
 609                 pr_err("ACPI call to get the keyboard backlight failed\n");
 610                 return LED_OFF;
 611         } else if (result != TOS_SUCCESS) {
 612                 return LED_OFF;
 613         }
 614
 615         return state ? LED_FULL : LED_OFF;
 616 }
 617
 618 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 619                                      enum led_brightness brightness)
 620 {
 621         struct toshiba_acpi_dev *dev = container_of(cdev,
 622                         struct toshiba_acpi_dev, kbd_led);
 623         u32 result;
 624         u32 state;
 625
 626         /* Set the keyboard backlight state */
 627         state = brightness ? 1 : 0;
 628         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 629         if (result == TOS_FAILURE)
 630                 pr_err("ACPI call to set KBD Illumination mode failed\n");
 631 }
 632
 633 /* TouchPad support */
 634 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 635 {
 636         u32 result;
 637
 638         if (!sci_open(dev))
 639                 return -EIO;
 640
 641         result = sci_write(dev, SCI_TOUCHPAD, state);
 642         sci_close(dev);
 643         if (result == TOS_FAILURE)
 644                 pr_err("ACPI call to set the touchpad failed\n");
 645         else if (result == TOS_NOT_SUPPORTED)
 646                 return -ENODEV;
 647
 648         return result == TOS_SUCCESS ? 0 : -EIO;
 649 }
 650
 651 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 652 {
 653         u32 result;
 654
 655         if (!sci_open(dev))
 656                 return -EIO;
 657
 658         result = sci_read(dev, SCI_TOUCHPAD, state);
 659         sci_close(dev);
 660         if (result == TOS_FAILURE)
 661                 pr_err("ACPI call to query the touchpad failed\n");
 662         else if (result == TOS_NOT_SUPPORTED)
 663                 return -ENODEV;
 664
 665         return result == TOS_SUCCESS ? 0 : -EIO;
 666 }
 667
 668 /* Eco Mode support */
 669 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 670 {
 671         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 672         u32 out[TCI_WORDS];
 673         acpi_status status;
 674
 675         dev->eco_supported = 0;
 676         dev->eco_led_registered = false;
 677
 678         status = tci_raw(dev, in, out);
 679         if (ACPI_FAILURE(status)) {
 680                 pr_err("ACPI call to get ECO led failed\n");
 681                 return;
 682         }
 683
 684         if (out[0] == TOS_INPUT_DATA_ERROR) {
 685                 /*
 686                  * If we receive 0x8300 (Input Data Error), it means that the
 687                  * LED device is present, but that we just screwed the input
 688                  * parameters.
 689                  *
 690                  * Let's query the status of the LED to see if we really have a
 691                  * success response, indicating the actual presense of the LED,
 692                  * bail out otherwise.
 693                  */
 694                 in[3] = 1;
 695                 status = tci_raw(dev, in, out);
 696                 if (ACPI_FAILURE(status)) {
 697                         pr_err("ACPI call to get ECO led failed\n");
 698                         return;
 699                 }
 700
 701                 if (out[0] != TOS_SUCCESS)
 702                         return;
 703
 704                 dev->eco_supported = 1;
 705         }
 706 }
 707
 708 static enum led_brightness
 709 toshiba_eco_mode_get_status(struct led_classdev *cdev)
 710 {
 711         struct toshiba_acpi_dev *dev = container_of(cdev,
 712                         struct toshiba_acpi_dev, eco_led);
 713         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 714         u32 out[TCI_WORDS];
 715         acpi_status status;
 716
 717         status = tci_raw(dev, in, out);
 718         if (ACPI_FAILURE(status)) {
 719                 pr_err("ACPI call to get ECO led failed\n");
 720                 return LED_OFF;
 721         }
 722
 723         if (out[0] != TOS_SUCCESS)
 724                 return LED_OFF;
 725
 726         return out[2] ? LED_FULL : LED_OFF;
 727 }
 728
 729 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 730                                      enum led_brightness brightness)
 731 {
 732         struct toshiba_acpi_dev *dev = container_of(cdev,
 733                         struct toshiba_acpi_dev, eco_led);
 734         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 735         u32 out[TCI_WORDS];
 736         acpi_status status;
 737
 738         /* Switch the Eco Mode led on/off */
 739         in[2] = (brightness) ? 1 : 0;
 740         status = tci_raw(dev, in, out);
 741         if (ACPI_FAILURE(status))
 742                 pr_err("ACPI call to set ECO led failed\n");
 743 }
 744
 745 /* Accelerometer support */
 746 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 747 {
 748         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 749         u32 out[TCI_WORDS];
 750         acpi_status status;
 751
 752         dev->accelerometer_supported = 0;
 753
 754         /*
 755          * Check if the accelerometer call exists,
 756          * this call also serves as initialization
 757          */
 758         status = tci_raw(dev, in, out);
 759         if (ACPI_FAILURE(status)) {
 760                 pr_err("ACPI call to query the accelerometer failed\n");
 761                 return;
 762         }
 763
 764         if (out[0] != TOS_SUCCESS)
 765                 return;
 766
 767         dev->accelerometer_supported = 1;
 768 }
 769
 770 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 771                                      u32 *xy, u32 *z)
 772 {
 773         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 774         u32 out[TCI_WORDS];
 775         acpi_status status;
 776
 777         /* Check the Accelerometer status */
 778         status = tci_raw(dev, in, out);
 779         if (ACPI_FAILURE(status)) {
 780                 pr_err("ACPI call to query the accelerometer failed\n");
 781                 return -EIO;
 782         }
 783
 784         if (out[0] == TOS_NOT_SUPPORTED)
 785                 return -ENODEV;
 786
 787         if (out[0] != TOS_SUCCESS)
 788                 return -EIO;
 789
 790         *xy = out[2];
 791         *z = out[4];
 792
 793         return 0;
 794 }
 795
 796 /* Sleep (Charge and Music) utilities support */
 797 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 798 {
 799         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 800         u32 out[TCI_WORDS];
 801         acpi_status status;
 802
 803         dev->usb_sleep_charge_supported = 0;
 804
 805         if (!sci_open(dev))
 806                 return;
 807
 808         status = tci_raw(dev, in, out);
 809         if (ACPI_FAILURE(status)) {
 810                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 811                 sci_close(dev);
 812                 return;
 813         }
 814
 815         if (out[0] != TOS_SUCCESS) {
 816                 sci_close(dev);
 817                 return;
 818         }
 819
 820         dev->usbsc_mode_base = out[4];
 821
 822         in[5] = SCI_USB_CHARGE_BAT_LVL;
 823         status = tci_raw(dev, in, out);
 824         sci_close(dev);
 825         if (ACPI_FAILURE(status)) {
 826                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 827                 return;
 828         }
 829
 830         if (out[0] != TOS_SUCCESS)
 831                 return;
 832
 833         dev->usbsc_bat_level = out[2];
 834         /* Flag as supported */
 835         dev->usb_sleep_charge_supported = 1;
 836 }
 837
 838 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 839                                         u32 *mode)
 840 {
 841         u32 result;
 842
 843         if (!sci_open(dev))
 844                 return -EIO;
 845
 846         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 847         sci_close(dev);
 848         if (result == TOS_FAILURE)
 849                 pr_err("ACPI call to set USB S&C mode failed\n");
 850         else if (result == TOS_NOT_SUPPORTED)
 851                 return -ENODEV;
 852
 853         return result == TOS_SUCCESS ? 0 : -EIO;
 854 }
 855
 856 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 857                                         u32 mode)
 858 {
 859         u32 result;
 860
 861         if (!sci_open(dev))
 862                 return -EIO;
 863
 864         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 865         sci_close(dev);
 866         if (result == TOS_FAILURE)
 867                 pr_err("ACPI call to set USB S&C mode failed\n");
 868         else if (result == TOS_NOT_SUPPORTED)
 869                 return -ENODEV;
 870
 871         return result == TOS_SUCCESS ? 0 : -EIO;
 872 }
 873
 874 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 875                                               u32 *mode)
 876 {
 877         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 878         u32 out[TCI_WORDS];
 879         acpi_status status;
 880
 881         if (!sci_open(dev))
 882                 return -EIO;
 883
 884         in[5] = SCI_USB_CHARGE_BAT_LVL;
 885         status = tci_raw(dev, in, out);
 886         sci_close(dev);
 887         if (ACPI_FAILURE(status)) {
 888                 pr_err("ACPI call to get USB S&C battery level failed\n");
 889                 return -EIO;
 890         }
 891
 892         if (out[0] == TOS_NOT_SUPPORTED)
 893                 return -ENODEV;
 894
 895         if (out[0] != TOS_SUCCESS)
 896                 return -EIO;
 897
 898         *mode = out[2];
 899
 900         return 0;
 901
 902 }
 903
 904 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 905                                               u32 mode)
 906 {
 907         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 908         u32 out[TCI_WORDS];
 909         acpi_status status;
 910
 911         if (!sci_open(dev))
 912                 return -EIO;
 913
 914         in[2] = mode;
 915         in[5] = SCI_USB_CHARGE_BAT_LVL;
 916         status = tci_raw(dev, in, out);
 917         sci_close(dev);
 918         if (ACPI_FAILURE(status)) {
 919                 pr_err("ACPI call to set USB S&C battery level failed\n");
 920                 return -EIO;
 921         }
 922
 923         if (out[0] == TOS_NOT_SUPPORTED)
 924                 return -ENODEV;
 925
 926         return out[0] == TOS_SUCCESS ? 0 : -EIO;
 927 }
 928
 929 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 930                                         u32 *state)
 931 {
 932         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 933         u32 out[TCI_WORDS];
 934         acpi_status status;
 935
 936         if (!sci_open(dev))
 937                 return -EIO;
 938
 939         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 940         status = tci_raw(dev, in, out);
 941         sci_close(dev);
 942         if (ACPI_FAILURE(status)) {
 943                 pr_err("ACPI call to get USB Rapid Charge failed\n");
 944                 return -EIO;
 945         }
 946
 947         if (out[0] == TOS_NOT_SUPPORTED)
 948                 return -ENODEV;
 949
 950         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 951                 return -EIO;
 952
 953         *state = out[2];
 954
 955         return 0;
 956 }
 957
 958 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 959                                         u32 state)
 960 {
 961         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 962         u32 out[TCI_WORDS];
 963         acpi_status status;
 964
 965         if (!sci_open(dev))
 966                 return -EIO;
 967
 968         in[2] = state;
 969         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 970         status = tci_raw(dev, in, out);
 971         sci_close(dev);
 972         if (ACPI_FAILURE(status)) {
 973                 pr_err("ACPI call to set USB Rapid Charge failed\n");
 974                 return -EIO;
 975         }
 976
 977         if (out[0] == TOS_NOT_SUPPORTED)
 978                 return -ENODEV;
 979
 980         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 981 }
 982
 983 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 984 {
 985         u32 result;
 986
 987         if (!sci_open(dev))
 988                 return -EIO;
 989
 990         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
 991         sci_close(dev);
 992         if (result == TOS_FAILURE)
 993                 pr_err("ACPI call to get Sleep and Music failed\n");
 994         else if (result == TOS_NOT_SUPPORTED)
 995                 return -ENODEV;
 996
 997         return result == TOS_SUCCESS ? 0 : -EIO;
 998 }
 999
1000 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1001 {
1002         u32 result;
1003
1004         if (!sci_open(dev))
1005                 return -EIO;
1006
1007         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1008         sci_close(dev);
1009         if (result == TOS_FAILURE)
1010                 pr_err("ACPI call to set Sleep and Music failed\n");
1011         else if (result == TOS_NOT_SUPPORTED)
1012                 return -ENODEV;
1013
1014         return result == TOS_SUCCESS ? 0 : -EIO;
1015 }
1016
1017 /* Keyboard function keys */
1018 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1019 {
1020         u32 result;
1021
1022         if (!sci_open(dev))
1023                 return -EIO;
1024
1025         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1026         sci_close(dev);
1027         if (result == TOS_FAILURE)
1028                 pr_err("ACPI call to get KBD function keys failed\n");
1029         else if (result == TOS_NOT_SUPPORTED)
1030                 return -ENODEV;
1031
1032         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1033 }
1034
1035 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1036 {
1037         u32 result;
1038
1039         if (!sci_open(dev))
1040                 return -EIO;
1041
1042         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1043         sci_close(dev);
1044         if (result == TOS_FAILURE)
1045                 pr_err("ACPI call to set KBD function keys failed\n");
1046         else if (result == TOS_NOT_SUPPORTED)
1047                 return -ENODEV;
1048
1049         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1050 }
1051
1052 /* Panel Power ON */
1053 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1054 {
1055         u32 result;
1056
1057         if (!sci_open(dev))
1058                 return -EIO;
1059
1060         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1061         sci_close(dev);
1062         if (result == TOS_FAILURE)
1063                 pr_err("ACPI call to get Panel Power ON failed\n");
1064         else if (result == TOS_NOT_SUPPORTED)
1065                 return -ENODEV;
1066
1067         return result == TOS_SUCCESS ? 0 : -EIO;
1068 }
1069
1070 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1071 {
1072         u32 result;
1073
1074         if (!sci_open(dev))
1075                 return -EIO;
1076
1077         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1078         sci_close(dev);
1079         if (result == TOS_FAILURE)
1080                 pr_err("ACPI call to set Panel Power ON failed\n");
1081         else if (result == TOS_NOT_SUPPORTED)
1082                 return -ENODEV;
1083
1084         return result == TOS_SUCCESS ? 0 : -EIO;
1085 }
1086
1087 /* USB Three */
1088 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1089 {
1090         u32 result;
1091
1092         if (!sci_open(dev))
1093                 return -EIO;
1094
1095         result = sci_read(dev, SCI_USB_THREE, state);
1096         sci_close(dev);
1097         if (result == TOS_FAILURE)
1098                 pr_err("ACPI call to get USB 3 failed\n");
1099         else if (result == TOS_NOT_SUPPORTED)
1100                 return -ENODEV;
1101
1102         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1103 }
1104
1105 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1106 {
1107         u32 result;
1108
1109         if (!sci_open(dev))
1110                 return -EIO;
1111
1112         result = sci_write(dev, SCI_USB_THREE, state);
1113         sci_close(dev);
1114         if (result == TOS_FAILURE)
1115                 pr_err("ACPI call to set USB 3 failed\n");
1116         else if (result == TOS_NOT_SUPPORTED)
1117                 return -ENODEV;
1118
1119         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1120 }
1121
1122 /* Hotkey Event type */
1123 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1124                                          u32 *type)
1125 {
1126         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1127         u32 out[TCI_WORDS];
1128         acpi_status status;
1129
1130         status = tci_raw(dev, in, out);
1131         if (ACPI_FAILURE(status)) {
1132                 pr_err("ACPI call to get System type failed\n");
1133                 return -EIO;
1134         }
1135
1136         if (out[0] == TOS_NOT_SUPPORTED)
1137                 return -ENODEV;
1138
1139         if (out[0] != TOS_SUCCESS)
1140                 return -EIO;
1141
1142         *type = out[3];
1143
1144         return 0;
1145 }
1146
1147 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1148 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1149 {
1150         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1151         u32 out[TCI_WORDS];
1152         acpi_status status;
1153
1154         in[3] = HCI_WIRELESS_STATUS;
1155         status = tci_raw(dev, in, out);
1156
1157         if (ACPI_FAILURE(status)) {
1158                 pr_err("ACPI call to get Wireless status failed\n");
1159                 return -EIO;
1160         }
1161
1162         if (out[0] == TOS_NOT_SUPPORTED)
1163                 return -ENODEV;
1164
1165         if (out[0] != TOS_SUCCESS)
1166                 return -EIO;
1167
1168         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1169
1170         return 0;
1171 }
1172
1173 /* WWAN */
1174 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1175 {
1176         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1177         u32 out[TCI_WORDS];
1178         acpi_status status;
1179
1180         dev->wwan_supported = 0;
1181
1182         /*
1183          * WWAN support can be queried by setting the in[3] value to
1184          * HCI_WIRELESS_WWAN (0x03).
1185          *
1186          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1187          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1188          *
1189          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1190          * or TOS_NOT_SUPPORTED (0x8000).
1191          */
1192         in[3] = HCI_WIRELESS_WWAN;
1193         status = tci_raw(dev, in, out);
1194         if (ACPI_FAILURE(status)) {
1195                 pr_err("ACPI call to get WWAN status failed\n");
1196                 return;
1197         }
1198
1199         if (out[0] != TOS_SUCCESS)
1200                 return;
1201
1202         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1203 }
1204
1205 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1206 {
1207         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1208         u32 out[TCI_WORDS];
1209         acpi_status status;
1210
1211         in[3] = HCI_WIRELESS_WWAN_STATUS;
1212         status = tci_raw(dev, in, out);
1213         if (ACPI_FAILURE(status)) {
1214                 pr_err("ACPI call to set WWAN status failed\n");
1215                 return -EIO;
1216         }
1217
1218         if (out[0] == TOS_NOT_SUPPORTED)
1219                 return -ENODEV;
1220
1221         if (out[0] != TOS_SUCCESS)
1222                 return -EIO;
1223
1224         /*
1225          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1226          * (de)activate the device, but some others need the
1227          * HCI_WIRELESS_WWAN_POWER call as well.
1228          */
1229         in[3] = HCI_WIRELESS_WWAN_POWER;
1230         status = tci_raw(dev, in, out);
1231         if (ACPI_FAILURE(status)) {
1232                 pr_err("ACPI call to set WWAN power failed\n");
1233                 return -EIO;
1234         }
1235
1236         if (out[0] == TOS_NOT_SUPPORTED)
1237                 return -ENODEV;
1238
1239         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1240 }
1241
1242 /* Cooling Method */
1243 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1244 {
1245         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1246         u32 out[TCI_WORDS];
1247         acpi_status status;
1248
1249         dev->cooling_method_supported = 0;
1250         dev->max_cooling_method = 0;
1251
1252         status = tci_raw(dev, in, out);
1253         if (ACPI_FAILURE(status)) {
1254                 pr_err("ACPI call to get Cooling Method failed\n");
1255                 return;
1256         }
1257
1258         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1259                 return;
1260
1261         dev->cooling_method_supported = 1;
1262         dev->max_cooling_method = out[3];
1263 }
1264
1265 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1266 {
1267         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1268
1269         if (result == TOS_FAILURE)
1270                 pr_err("ACPI call to get Cooling Method failed\n");
1271
1272         if (result == TOS_NOT_SUPPORTED)
1273                 return -ENODEV;
1274
1275         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1276 }
1277
1278 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1279 {
1280         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1281
1282         if (result == TOS_FAILURE)
1283                 pr_err("ACPI call to set Cooling Method failed\n");
1284
1285         if (result == TOS_NOT_SUPPORTED)
1286                 return -ENODEV;
1287
1288         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1289 }
1290
1291 /* Transflective Backlight */
1292 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1293 {
1294         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1295
1296         if (result == TOS_FAILURE)
1297                 pr_err("ACPI call to get Transflective Backlight failed\n");
1298         else if (result == TOS_NOT_SUPPORTED)
1299                 return -ENODEV;
1300
1301         return result == TOS_SUCCESS ? 0 : -EIO;
1302 }
1303
1304 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1305 {
1306         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1307
1308         if (result == TOS_FAILURE)
1309                 pr_err("ACPI call to set Transflective Backlight failed\n");
1310         else if (result == TOS_NOT_SUPPORTED)
1311                 return -ENODEV;
1312
1313         return result == TOS_SUCCESS ? 0 : -EIO;
1314 }
1315
1316 static struct proc_dir_entry *toshiba_proc_dir;
1317
1318 /* LCD Brightness */
1319 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1320 {
1321         int brightness = 0;
1322         u32 result;
1323         u32 value;
1324
1325         if (dev->tr_backlight_supported) {
1326                 int ret = get_tr_backlight_status(dev, &value);
1327
1328                 if (ret)
1329                         return ret;
1330                 if (value)
1331                         return 0;
1332                 brightness++;
1333         }
1334
1335         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1336         if (result == TOS_FAILURE)
1337                 pr_err("ACPI call to get LCD Brightness failed\n");
1338         else if (result == TOS_NOT_SUPPORTED)
1339                 return -ENODEV;
1340
1341         return result == TOS_SUCCESS ?
1342                         brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1343                         -EIO;
1344 }
1345
1346 static int get_lcd_brightness(struct backlight_device *bd)
1347 {
1348         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1349
1350         return __get_lcd_brightness(dev);
1351 }
1352
1353 static int lcd_proc_show(struct seq_file *m, void *v)
1354 {
1355         struct toshiba_acpi_dev *dev = m->private;
1356         int levels;
1357         int value;
1358
1359         if (!dev->backlight_dev)
1360                 return -ENODEV;
1361
1362         levels = dev->backlight_dev->props.max_brightness + 1;
1363         value = get_lcd_brightness(dev->backlight_dev);
1364         if (value < 0) {
1365                 pr_err("Error reading LCD brightness\n");
1366                 return value;
1367         }
1368
1369         seq_printf(m, "brightness:              %d\n", value);
1370         seq_printf(m, "brightness_levels:       %d\n", levels);
1371
1372         return 0;
1373 }
1374
1375 static int lcd_proc_open(struct inode *inode, struct file *file)
1376 {
1377         return single_open(file, lcd_proc_show, PDE_DATA(inode));
1378 }
1379
1380 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1381 {
1382         u32 result;
1383
1384         if (dev->tr_backlight_supported) {
1385                 int ret = set_tr_backlight_status(dev, !value);
1386
1387                 if (ret)
1388                         return ret;
1389                 if (value)
1390                         value--;
1391         }
1392
1393         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1394         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1395         if (result == TOS_FAILURE)
1396                 pr_err("ACPI call to set LCD Brightness failed\n");
1397         else if (result == TOS_NOT_SUPPORTED)
1398                 return -ENODEV;
1399
1400         return result == TOS_SUCCESS ? 0 : -EIO;
1401 }
1402
1403 static int set_lcd_status(struct backlight_device *bd)
1404 {
1405         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1406
1407         return set_lcd_brightness(dev, bd->props.brightness);
1408 }
1409
1410 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1411                               size_t count, loff_t *pos)
1412 {
1413         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1414         char cmd[42];
1415         size_t len;
1416         int levels;
1417         int value;
1418
1419         len = min(count, sizeof(cmd) - 1);
1420         if (copy_from_user(cmd, buf, len))
1421                 return -EFAULT;
1422         cmd[len] = '\0';
1423
1424         levels = dev->backlight_dev->props.max_brightness + 1;
1425         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1426             value < 0 && value > levels)
1427                 return -EINVAL;
1428
1429         if (set_lcd_brightness(dev, value))
1430                 return -EIO;
1431
1432         return count;
1433 }
1434
1435 static const struct proc_ops lcd_proc_ops = {
1436         .proc_open      = lcd_proc_open,
1437         .proc_read      = seq_read,
1438         .proc_lseek     = seq_lseek,
1439         .proc_release   = single_release,
1440         .proc_write     = lcd_proc_write,
1441 };
1442
1443 /* Video-Out */
1444 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1445 {
1446         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1447
1448         if (result == TOS_FAILURE)
1449                 pr_err("ACPI call to get Video-Out failed\n");
1450         else if (result == TOS_NOT_SUPPORTED)
1451                 return -ENODEV;
1452
1453         return result == TOS_SUCCESS ? 0 : -EIO;
1454 }
1455
1456 static int video_proc_show(struct seq_file *m, void *v)
1457 {
1458         struct toshiba_acpi_dev *dev = m->private;
1459         int is_lcd, is_crt, is_tv;
1460         u32 value;
1461
1462         if (get_video_status(dev, &value))
1463                 return -EIO;
1464
1465         is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1466         is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1467         is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1468
1469         seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1470         seq_printf(m, "crt_out:                 %d\n", is_crt);
1471         seq_printf(m, "tv_out:                  %d\n", is_tv);
1472
1473         return 0;
1474 }
1475
1476 static int video_proc_open(struct inode *inode, struct file *file)
1477 {
1478         return single_open(file, video_proc_show, PDE_DATA(inode));
1479 }
1480
1481 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1482                                 size_t count, loff_t *pos)
1483 {
1484         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1485         char *buffer;
1486         char *cmd;
1487         int lcd_out, crt_out, tv_out;
1488         int remain = count;
1489         int value;
1490         int ret;
1491         u32 video_out;
1492
1493         cmd = memdup_user_nul(buf, count);
1494         if (IS_ERR(cmd))
1495                 return PTR_ERR(cmd);
1496
1497         buffer = cmd;
1498
1499         /*
1500          * Scan expression.  Multiple expressions may be delimited with ;
1501          * NOTE: To keep scanning simple, invalid fields are ignored.
1502          */
1503         while (remain) {
1504                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1505                         lcd_out = value & 1;
1506                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1507                         crt_out = value & 1;
1508                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1509                         tv_out = value & 1;
1510                 /* Advance to one character past the next ; */
1511                 do {
1512                         ++buffer;
1513                         --remain;
1514                 } while (remain && *(buffer - 1) != ';');
1515         }
1516
1517         kfree(cmd);
1518
1519         lcd_out = crt_out = tv_out = -1;
1520         ret = get_video_status(dev, &video_out);
1521         if (!ret) {
1522                 unsigned int new_video_out = video_out;
1523
1524                 if (lcd_out != -1)
1525                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1526                 if (crt_out != -1)
1527                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1528                 if (tv_out != -1)
1529                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1530                 /*
1531                  * To avoid unnecessary video disruption, only write the new
1532                  * video setting if something changed.
1533                  */
1534                 if (new_video_out != video_out)
1535                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1536         }
1537
1538         return ret ? -EIO : count;
1539 }
1540
1541 static const struct proc_ops video_proc_ops = {
1542         .proc_open      = video_proc_open,
1543         .proc_read      = seq_read,
1544         .proc_lseek     = seq_lseek,
1545         .proc_release   = single_release,
1546         .proc_write     = video_proc_write,
1547 };
1548
1549 /* Fan status */
1550 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1551 {
1552         u32 result = hci_read(dev, HCI_FAN, status);
1553
1554         if (result == TOS_FAILURE)
1555                 pr_err("ACPI call to get Fan status failed\n");
1556         else if (result == TOS_NOT_SUPPORTED)
1557                 return -ENODEV;
1558
1559         return result == TOS_SUCCESS ? 0 : -EIO;
1560 }
1561
1562 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1563 {
1564         u32 result = hci_write(dev, HCI_FAN, status);
1565
1566         if (result == TOS_FAILURE)
1567                 pr_err("ACPI call to set Fan status failed\n");
1568         else if (result == TOS_NOT_SUPPORTED)
1569                 return -ENODEV;
1570
1571         return result == TOS_SUCCESS ? 0 : -EIO;
1572 }
1573
1574 static int fan_proc_show(struct seq_file *m, void *v)
1575 {
1576         struct toshiba_acpi_dev *dev = m->private;
1577         u32 value;
1578
1579         if (get_fan_status(dev, &value))
1580                 return -EIO;
1581
1582         seq_printf(m, "running:                 %d\n", (value > 0));
1583         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1584
1585         return 0;
1586 }
1587
1588 static int fan_proc_open(struct inode *inode, struct file *file)
1589 {
1590         return single_open(file, fan_proc_show, PDE_DATA(inode));
1591 }
1592
1593 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1594                               size_t count, loff_t *pos)
1595 {
1596         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1597         char cmd[42];
1598         size_t len;
1599         int value;
1600
1601         len = min(count, sizeof(cmd) - 1);
1602         if (copy_from_user(cmd, buf, len))
1603                 return -EFAULT;
1604         cmd[len] = '\0';
1605
1606         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1607             value != 0 && value != 1)
1608                 return -EINVAL;
1609
1610         if (set_fan_status(dev, value))
1611                 return -EIO;
1612
1613         dev->force_fan = value;
1614
1615         return count;
1616 }
1617
1618 static const struct proc_ops fan_proc_ops = {
1619         .proc_open      = fan_proc_open,
1620         .proc_read      = seq_read,
1621         .proc_lseek     = seq_lseek,
1622         .proc_release   = single_release,
1623         .proc_write     = fan_proc_write,
1624 };
1625
1626 static int keys_proc_show(struct seq_file *m, void *v)
1627 {
1628         struct toshiba_acpi_dev *dev = m->private;
1629
1630         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1631         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1632
1633         return 0;
1634 }
1635
1636 static int keys_proc_open(struct inode *inode, struct file *file)
1637 {
1638         return single_open(file, keys_proc_show, PDE_DATA(inode));
1639 }
1640
1641 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1642                                size_t count, loff_t *pos)
1643 {
1644         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1645         char cmd[42];
1646         size_t len;
1647         int value;
1648
1649         len = min(count, sizeof(cmd) - 1);
1650         if (copy_from_user(cmd, buf, len))
1651                 return -EFAULT;
1652         cmd[len] = '\0';
1653
1654         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1655                 dev->key_event_valid = 0;
1656         else
1657                 return -EINVAL;
1658
1659         return count;
1660 }
1661
1662 static const struct proc_ops keys_proc_ops = {
1663         .proc_open      = keys_proc_open,
1664         .proc_read      = seq_read,
1665         .proc_lseek     = seq_lseek,
1666         .proc_release   = single_release,
1667         .proc_write     = keys_proc_write,
1668 };
1669
1670 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1671 {
1672         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1673         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1674         return 0;
1675 }
1676
1677 /*
1678  * Proc and module init
1679  */
1680
1681 #define PROC_TOSHIBA            "toshiba"
1682
1683 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1684 {
1685         if (dev->backlight_dev)
1686                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1687                                  &lcd_proc_ops, dev);
1688         if (dev->video_supported)
1689                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1690                                  &video_proc_ops, dev);
1691         if (dev->fan_supported)
1692                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1693                                  &fan_proc_ops, dev);
1694         if (dev->hotkey_dev)
1695                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1696                                  &keys_proc_ops, dev);
1697         proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1698                         version_proc_show, dev);
1699 }
1700
1701 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1702 {
1703         if (dev->backlight_dev)
1704                 remove_proc_entry("lcd", toshiba_proc_dir);
1705         if (dev->video_supported)
1706                 remove_proc_entry("video", toshiba_proc_dir);
1707         if (dev->fan_supported)
1708                 remove_proc_entry("fan", toshiba_proc_dir);
1709         if (dev->hotkey_dev)
1710                 remove_proc_entry("keys", toshiba_proc_dir);
1711         remove_proc_entry("version", toshiba_proc_dir);
1712 }
1713
1714 static const struct backlight_ops toshiba_backlight_data = {
1715         .options = BL_CORE_SUSPENDRESUME,
1716         .get_brightness = get_lcd_brightness,
1717         .update_status  = set_lcd_status,
1718 };
1719
1720 /* Keyboard backlight work */
1721 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1722
1723 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1724
1725 /*
1726  * Sysfs files
1727  */
1728 static ssize_t version_show(struct device *dev,
1729                             struct device_attribute *attr, char *buf)
1730 {
1731         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1732 }
1733 static DEVICE_ATTR_RO(version);
1734
1735 static ssize_t fan_store(struct device *dev,
1736                          struct device_attribute *attr,
1737                          const char *buf, size_t count)
1738 {
1739         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1740         int state;
1741         int ret;
1742
1743         ret = kstrtoint(buf, 0, &state);
1744         if (ret)
1745                 return ret;
1746
1747         if (state != 0 && state != 1)
1748                 return -EINVAL;
1749
1750         ret = set_fan_status(toshiba, state);
1751         if (ret)
1752                 return ret;
1753
1754         return count;
1755 }
1756
1757 static ssize_t fan_show(struct device *dev,
1758                         struct device_attribute *attr, char *buf)
1759 {
1760         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1761         u32 value;
1762         int ret;
1763
1764         ret = get_fan_status(toshiba, &value);
1765         if (ret)
1766                 return ret;
1767
1768         return sprintf(buf, "%d\n", value);
1769 }
1770 static DEVICE_ATTR_RW(fan);
1771
1772 static ssize_t kbd_backlight_mode_store(struct device *dev,
1773                                         struct device_attribute *attr,
1774                                         const char *buf, size_t count)
1775 {
1776         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1777         int mode;
1778         int ret;
1779
1780
1781         ret = kstrtoint(buf, 0, &mode);
1782         if (ret)
1783                 return ret;
1784
1785         /* Check for supported modes depending on keyboard backlight type */
1786         if (toshiba->kbd_type == 1) {
1787                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1788                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1789                         return -EINVAL;
1790         } else if (toshiba->kbd_type == 2) {
1791                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1792                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1793                     mode != SCI_KBD_MODE_OFF)
1794                         return -EINVAL;
1795         }
1796
1797         /*
1798          * Set the Keyboard Backlight Mode where:
1799          *      Auto - KBD backlight turns off automatically in given time
1800          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1801          *      ON   - KBD backlight is always on
1802          *      OFF  - KBD backlight is always off
1803          */
1804
1805         /* Only make a change if the actual mode has changed */
1806         if (toshiba->kbd_mode != mode) {
1807                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1808                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1809
1810                 /* OR the "base time" to the actual method format */
1811                 if (toshiba->kbd_type == 1) {
1812                         /* Type 1 requires the current mode */
1813                         time |= toshiba->kbd_mode;
1814                 } else if (toshiba->kbd_type == 2) {
1815                         /* Type 2 requires the desired mode */
1816                         time |= mode;
1817                 }
1818
1819                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1820                 if (ret)
1821                         return ret;
1822
1823                 toshiba->kbd_mode = mode;
1824                 toshiba_acpi->kbd_mode = mode;
1825
1826                 /*
1827                  * Some laptop models with the second generation backlit
1828                  * keyboard (type 2) do not generate the keyboard backlight
1829                  * changed event (0x92), and thus, the driver will never update
1830                  * the sysfs entries.
1831                  *
1832                  * The event is generated right when changing the keyboard
1833                  * backlight mode and the *notify function will set the
1834                  * kbd_event_generated to true.
1835                  *
1836                  * In case the event is not generated, schedule the keyboard
1837                  * backlight work to update the sysfs entries and emulate the
1838                  * event via genetlink.
1839                  */
1840                 if (toshiba->kbd_type == 2 &&
1841                     !toshiba->kbd_event_generated)
1842                         schedule_work(&kbd_bl_work);
1843         }
1844
1845         return count;
1846 }
1847
1848 static ssize_t kbd_backlight_mode_show(struct device *dev,
1849                                        struct device_attribute *attr,
1850                                        char *buf)
1851 {
1852         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1853         u32 time;
1854
1855         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1856                 return -EIO;
1857
1858         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1859 }
1860 static DEVICE_ATTR_RW(kbd_backlight_mode);
1861
1862 static ssize_t kbd_type_show(struct device *dev,
1863                              struct device_attribute *attr, char *buf)
1864 {
1865         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1866
1867         return sprintf(buf, "%d\n", toshiba->kbd_type);
1868 }
1869 static DEVICE_ATTR_RO(kbd_type);
1870
1871 static ssize_t available_kbd_modes_show(struct device *dev,
1872                                         struct device_attribute *attr,
1873                                         char *buf)
1874 {
1875         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1876
1877         if (toshiba->kbd_type == 1)
1878                 return sprintf(buf, "0x%x 0x%x\n",
1879                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1880
1881         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1882                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1883 }
1884 static DEVICE_ATTR_RO(available_kbd_modes);
1885
1886 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1887                                            struct device_attribute *attr,
1888                                            const char *buf, size_t count)
1889 {
1890         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1891         int time;
1892         int ret;
1893
1894         ret = kstrtoint(buf, 0, &time);
1895         if (ret)
1896                 return ret;
1897
1898         /* Check for supported values depending on kbd_type */
1899         if (toshiba->kbd_type == 1) {
1900                 if (time < 0 || time > 60)
1901                         return -EINVAL;
1902         } else if (toshiba->kbd_type == 2) {
1903                 if (time < 1 || time > 60)
1904                         return -EINVAL;
1905         }
1906
1907         /* Set the Keyboard Backlight Timeout */
1908
1909         /* Only make a change if the actual timeout has changed */
1910         if (toshiba->kbd_time != time) {
1911                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1912                 time = time << HCI_MISC_SHIFT;
1913                 /* OR the "base time" to the actual method format */
1914                 if (toshiba->kbd_type == 1)
1915                         time |= SCI_KBD_MODE_FNZ;
1916                 else if (toshiba->kbd_type == 2)
1917                         time |= SCI_KBD_MODE_AUTO;
1918
1919                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1920                 if (ret)
1921                         return ret;
1922
1923                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1924         }
1925
1926         return count;
1927 }
1928
1929 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1930                                           struct device_attribute *attr,
1931                                           char *buf)
1932 {
1933         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1934         u32 time;
1935
1936         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1937                 return -EIO;
1938
1939         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1940 }
1941 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1942
1943 static ssize_t touchpad_store(struct device *dev,
1944                               struct device_attribute *attr,
1945                               const char *buf, size_t count)
1946 {
1947         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1948         int state;
1949         int ret;
1950
1951         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1952         ret = kstrtoint(buf, 0, &state);
1953         if (ret)
1954                 return ret;
1955         if (state != 0 && state != 1)
1956                 return -EINVAL;
1957
1958         ret = toshiba_touchpad_set(toshiba, state);
1959         if (ret)
1960                 return ret;
1961
1962         return count;
1963 }
1964
1965 static ssize_t touchpad_show(struct device *dev,
1966                              struct device_attribute *attr, char *buf)
1967 {
1968         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1969         u32 state;
1970         int ret;
1971
1972         ret = toshiba_touchpad_get(toshiba, &state);
1973         if (ret < 0)
1974                 return ret;
1975
1976         return sprintf(buf, "%i\n", state);
1977 }
1978 static DEVICE_ATTR_RW(touchpad);
1979
1980 static ssize_t usb_sleep_charge_show(struct device *dev,
1981                                      struct device_attribute *attr, char *buf)
1982 {
1983         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1984         u32 mode;
1985         int ret;
1986
1987         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1988         if (ret < 0)
1989                 return ret;
1990
1991         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1992 }
1993
1994 static ssize_t usb_sleep_charge_store(struct device *dev,
1995                                       struct device_attribute *attr,
1996                                       const char *buf, size_t count)
1997 {
1998         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1999         int state;
2000         u32 mode;
2001         int ret;
2002
2003         ret = kstrtoint(buf, 0, &state);
2004         if (ret)
2005                 return ret;
2006         /*
2007          * Check for supported values, where:
2008          * 0 - Disabled
2009          * 1 - Alternate (Non USB conformant devices that require more power)
2010          * 2 - Auto (USB conformant devices)
2011          * 3 - Typical
2012          */
2013         if (state != 0 && state != 1 && state != 2 && state != 3)
2014                 return -EINVAL;
2015
2016         /* Set the USB charging mode to internal value */
2017         mode = toshiba->usbsc_mode_base;
2018         if (state == 0)
2019                 mode |= SCI_USB_CHARGE_DISABLED;
2020         else if (state == 1)
2021                 mode |= SCI_USB_CHARGE_ALTERNATE;
2022         else if (state == 2)
2023                 mode |= SCI_USB_CHARGE_AUTO;
2024         else if (state == 3)
2025                 mode |= SCI_USB_CHARGE_TYPICAL;
2026
2027         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2028         if (ret)
2029                 return ret;
2030
2031         return count;
2032 }
2033 static DEVICE_ATTR_RW(usb_sleep_charge);
2034
2035 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2036                                                struct device_attribute *attr,
2037                                                char *buf)
2038 {
2039         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2040         int bat_lvl, status;
2041         u32 state;
2042         int ret;
2043         int tmp;
2044
2045         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2046         if (ret < 0)
2047                 return ret;
2048
2049         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2050         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2051         status = (tmp == 0x4) ? 1 : 0;
2052         /* Determine the battery level set */
2053         bat_lvl = state >> HCI_MISC_SHIFT;
2054
2055         return sprintf(buf, "%d %d\n", status, bat_lvl);
2056 }
2057
2058 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2059                                                 struct device_attribute *attr,
2060                                                 const char *buf, size_t count)
2061 {
2062         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2063         u32 status;
2064         int value;
2065         int ret;
2066         int tmp;
2067
2068         ret = kstrtoint(buf, 0, &value);
2069         if (ret)
2070                 return ret;
2071
2072         /*
2073          * Set the status of the function:
2074          * 0 - Disabled
2075          * 1-100 - Enabled
2076          */
2077         if (value < 0 || value > 100)
2078                 return -EINVAL;
2079
2080         if (value == 0) {
2081                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2082                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2083         } else {
2084                 tmp = value << HCI_MISC_SHIFT;
2085                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2086         }
2087         ret = toshiba_sleep_functions_status_set(toshiba, status);
2088         if (ret < 0)
2089                 return ret;
2090
2091         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2092
2093         return count;
2094 }
2095 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2096
2097 static ssize_t usb_rapid_charge_show(struct device *dev,
2098                                      struct device_attribute *attr, char *buf)
2099 {
2100         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2101         u32 state;
2102         int ret;
2103
2104         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2105         if (ret < 0)
2106                 return ret;
2107
2108         return sprintf(buf, "%d\n", state);
2109 }
2110
2111 static ssize_t usb_rapid_charge_store(struct device *dev,
2112                                       struct device_attribute *attr,
2113                                       const char *buf, size_t count)
2114 {
2115         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2116         int state;
2117         int ret;
2118
2119         ret = kstrtoint(buf, 0, &state);
2120         if (ret)
2121                 return ret;
2122         if (state != 0 && state != 1)
2123                 return -EINVAL;
2124
2125         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2126         if (ret)
2127                 return ret;
2128
2129         return count;
2130 }
2131 static DEVICE_ATTR_RW(usb_rapid_charge);
2132
2133 static ssize_t usb_sleep_music_show(struct device *dev,
2134                                     struct device_attribute *attr, char *buf)
2135 {
2136         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2137         u32 state;
2138         int ret;
2139
2140         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2141         if (ret < 0)
2142                 return ret;
2143
2144         return sprintf(buf, "%d\n", state);
2145 }
2146
2147 static ssize_t usb_sleep_music_store(struct device *dev,
2148                                      struct device_attribute *attr,
2149                                      const char *buf, size_t count)
2150 {
2151         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2152         int state;
2153         int ret;
2154
2155         ret = kstrtoint(buf, 0, &state);
2156         if (ret)
2157                 return ret;
2158         if (state != 0 && state != 1)
2159                 return -EINVAL;
2160
2161         ret = toshiba_usb_sleep_music_set(toshiba, state);
2162         if (ret)
2163                 return ret;
2164
2165         return count;
2166 }
2167 static DEVICE_ATTR_RW(usb_sleep_music);
2168
2169 static ssize_t kbd_function_keys_show(struct device *dev,
2170                                       struct device_attribute *attr, char *buf)
2171 {
2172         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2173         int mode;
2174         int ret;
2175
2176         ret = toshiba_function_keys_get(toshiba, &mode);
2177         if (ret < 0)
2178                 return ret;
2179
2180         return sprintf(buf, "%d\n", mode);
2181 }
2182
2183 static ssize_t kbd_function_keys_store(struct device *dev,
2184                                        struct device_attribute *attr,
2185                                        const char *buf, size_t count)
2186 {
2187         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2188         int mode;
2189         int ret;
2190
2191         ret = kstrtoint(buf, 0, &mode);
2192         if (ret)
2193                 return ret;
2194         /*
2195          * Check for the function keys mode where:
2196          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2197          * 1 - Special functions (Opposite of the above setting)
2198          */
2199         if (mode != 0 && mode != 1)
2200                 return -EINVAL;
2201
2202         ret = toshiba_function_keys_set(toshiba, mode);
2203         if (ret)
2204                 return ret;
2205
2206         pr_info("Reboot for changes to KBD Function Keys to take effect");
2207
2208         return count;
2209 }
2210 static DEVICE_ATTR_RW(kbd_function_keys);
2211
2212 static ssize_t panel_power_on_show(struct device *dev,
2213                                    struct device_attribute *attr, char *buf)
2214 {
2215         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2216         u32 state;
2217         int ret;
2218
2219         ret = toshiba_panel_power_on_get(toshiba, &state);
2220         if (ret < 0)
2221                 return ret;
2222
2223         return sprintf(buf, "%d\n", state);
2224 }
2225
2226 static ssize_t panel_power_on_store(struct device *dev,
2227                                     struct device_attribute *attr,
2228                                     const char *buf, size_t count)
2229 {
2230         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2231         int state;
2232         int ret;
2233
2234         ret = kstrtoint(buf, 0, &state);
2235         if (ret)
2236                 return ret;
2237         if (state != 0 && state != 1)
2238                 return -EINVAL;
2239
2240         ret = toshiba_panel_power_on_set(toshiba, state);
2241         if (ret)
2242                 return ret;
2243
2244         pr_info("Reboot for changes to Panel Power ON to take effect");
2245
2246         return count;
2247 }
2248 static DEVICE_ATTR_RW(panel_power_on);
2249
2250 static ssize_t usb_three_show(struct device *dev,
2251                               struct device_attribute *attr, char *buf)
2252 {
2253         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2254         u32 state;
2255         int ret;
2256
2257         ret = toshiba_usb_three_get(toshiba, &state);
2258         if (ret < 0)
2259                 return ret;
2260
2261         return sprintf(buf, "%d\n", state);
2262 }
2263
2264 static ssize_t usb_three_store(struct device *dev,
2265                                struct device_attribute *attr,
2266                                const char *buf, size_t count)
2267 {
2268         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2269         int state;
2270         int ret;
2271
2272         ret = kstrtoint(buf, 0, &state);
2273         if (ret)
2274                 return ret;
2275         /*
2276          * Check for USB 3 mode where:
2277          * 0 - Disabled (Acts like a USB 2 port, saving power)
2278          * 1 - Enabled
2279          */
2280         if (state != 0 && state != 1)
2281                 return -EINVAL;
2282
2283         ret = toshiba_usb_three_set(toshiba, state);
2284         if (ret)
2285                 return ret;
2286
2287         pr_info("Reboot for changes to USB 3 to take effect");
2288
2289         return count;
2290 }
2291 static DEVICE_ATTR_RW(usb_three);
2292
2293 static ssize_t cooling_method_show(struct device *dev,
2294                                    struct device_attribute *attr, char *buf)
2295 {
2296         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2297         int state;
2298         int ret;
2299
2300         ret = toshiba_cooling_method_get(toshiba, &state);
2301         if (ret < 0)
2302                 return ret;
2303
2304         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2305 }
2306
2307 static ssize_t cooling_method_store(struct device *dev,
2308                                     struct device_attribute *attr,
2309                                     const char *buf, size_t count)
2310 {
2311         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2312         int state;
2313         int ret;
2314
2315         ret = kstrtoint(buf, 0, &state);
2316         if (ret)
2317                 return ret;
2318
2319         /*
2320          * Check for supported values
2321          * Depending on the laptop model, some only support these two:
2322          * 0 - Maximum Performance
2323          * 1 - Battery Optimized
2324          *
2325          * While some others support all three methods:
2326          * 0 - Maximum Performance
2327          * 1 - Performance
2328          * 2 - Battery Optimized
2329          */
2330         if (state < 0 || state > toshiba->max_cooling_method)
2331                 return -EINVAL;
2332
2333         ret = toshiba_cooling_method_set(toshiba, state);
2334         if (ret)
2335                 return ret;
2336
2337         return count;
2338 }
2339 static DEVICE_ATTR_RW(cooling_method);
2340
2341 static struct attribute *toshiba_attributes[] = {
2342         &dev_attr_version.attr,
2343         &dev_attr_fan.attr,
2344         &dev_attr_kbd_backlight_mode.attr,
2345         &dev_attr_kbd_type.attr,
2346         &dev_attr_available_kbd_modes.attr,
2347         &dev_attr_kbd_backlight_timeout.attr,
2348         &dev_attr_touchpad.attr,
2349         &dev_attr_usb_sleep_charge.attr,
2350         &dev_attr_sleep_functions_on_battery.attr,
2351         &dev_attr_usb_rapid_charge.attr,
2352         &dev_attr_usb_sleep_music.attr,
2353         &dev_attr_kbd_function_keys.attr,
2354         &dev_attr_panel_power_on.attr,
2355         &dev_attr_usb_three.attr,
2356         &dev_attr_cooling_method.attr,
2357         NULL,
2358 };
2359
2360 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2361                                         struct attribute *attr, int idx)
2362 {
2363         struct device *dev = container_of(kobj, struct device, kobj);
2364         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2365         bool exists = true;
2366
2367         if (attr == &dev_attr_fan.attr)
2368                 exists = (drv->fan_supported) ? true : false;
2369         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2370                 exists = (drv->kbd_illum_supported) ? true : false;
2371         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2372                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2373         else if (attr == &dev_attr_touchpad.attr)
2374                 exists = (drv->touchpad_supported) ? true : false;
2375         else if (attr == &dev_attr_usb_sleep_charge.attr)
2376                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2377         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2378                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2379         else if (attr == &dev_attr_usb_rapid_charge.attr)
2380                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2381         else if (attr == &dev_attr_usb_sleep_music.attr)
2382                 exists = (drv->usb_sleep_music_supported) ? true : false;
2383         else if (attr == &dev_attr_kbd_function_keys.attr)
2384                 exists = (drv->kbd_function_keys_supported) ? true : false;
2385         else if (attr == &dev_attr_panel_power_on.attr)
2386                 exists = (drv->panel_power_on_supported) ? true : false;
2387         else if (attr == &dev_attr_usb_three.attr)
2388                 exists = (drv->usb_three_supported) ? true : false;
2389         else if (attr == &dev_attr_cooling_method.attr)
2390                 exists = (drv->cooling_method_supported) ? true : false;
2391
2392         return exists ? attr->mode : 0;
2393 }
2394
2395 static const struct attribute_group toshiba_attr_group = {
2396         .is_visible = toshiba_sysfs_is_visible,
2397         .attrs = toshiba_attributes,
2398 };
2399
2400 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2401 {
2402         /* Update the sysfs entries */
2403         if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2404                                &toshiba_attr_group))
2405                 pr_err("Unable to update sysfs entries\n");
2406
2407         /* Notify LED subsystem about keyboard backlight change */
2408         if (toshiba_acpi->kbd_type == 2 &&
2409             toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2410                 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2411                                 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2412                                 LED_FULL : LED_OFF);
2413
2414         /* Emulate the keyboard backlight event */
2415         acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2416                                         dev_name(&toshiba_acpi->acpi_dev->dev),
2417                                         0x92, 0);
2418 }
2419
2420 /*
2421  * IIO device
2422  */
2423
2424 enum toshiba_iio_accel_chan {
2425         AXIS_X,
2426         AXIS_Y,
2427         AXIS_Z
2428 };
2429
2430 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2431 {
2432         u32 xyval, zval;
2433         int ret;
2434
2435         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2436         if (ret < 0)
2437                 return ret;
2438
2439         switch (chan) {
2440         case AXIS_X:
2441                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2442                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2443         case AXIS_Y:
2444                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2445                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2446                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2447         case AXIS_Z:
2448                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2449                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2450         }
2451
2452         return ret;
2453 }
2454
2455 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2456                                       struct iio_chan_spec const *chan,
2457                                       int *val, int *val2, long mask)
2458 {
2459         int ret;
2460
2461         switch (mask) {
2462         case IIO_CHAN_INFO_RAW:
2463                 ret = toshiba_iio_accel_get_axis(chan->channel);
2464                 if (ret == -EIO || ret == -ENODEV)
2465                         return ret;
2466
2467                 *val = ret;
2468
2469                 return IIO_VAL_INT;
2470         }
2471
2472         return -EINVAL;
2473 }
2474
2475 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2476         .type = IIO_ACCEL, \
2477         .modified = 1, \
2478         .channel = chan, \
2479         .channel2 = IIO_MOD_##axis, \
2480         .output = 1, \
2481         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2482 }
2483
2484 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2485         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2486         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2487         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2488 };
2489
2490 static const struct iio_info toshiba_iio_accel_info = {
2491         .read_raw = &toshiba_iio_accel_read_raw,
2492 };
2493
2494 /*
2495  * Misc device
2496  */
2497 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2498 {
2499         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2500                               regs->edx, regs->esi, regs->edi };
2501         u32 out[TCI_WORDS];
2502         acpi_status status;
2503
2504         status = tci_raw(toshiba_acpi, in, out);
2505         if (ACPI_FAILURE(status)) {
2506                 pr_err("ACPI call to query SMM registers failed\n");
2507                 return -EIO;
2508         }
2509
2510         /* Fillout the SMM struct with the TCI call results */
2511         regs->eax = out[0];
2512         regs->ebx = out[1];
2513         regs->ecx = out[2];
2514         regs->edx = out[3];
2515         regs->esi = out[4];
2516         regs->edi = out[5];
2517
2518         return 0;
2519 }
2520
2521 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2522                                unsigned long arg)
2523 {
2524         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2525         SMMRegisters regs;
2526         int ret;
2527
2528         if (!argp)
2529                 return -EINVAL;
2530
2531         switch (cmd) {
2532         case TOSH_SMM:
2533                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2534                         return -EFAULT;
2535                 ret = toshiba_acpi_smm_bridge(&regs);
2536                 if (ret)
2537                         return ret;
2538                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2539                         return -EFAULT;
2540                 break;
2541         case TOSHIBA_ACPI_SCI:
2542                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2543                         return -EFAULT;
2544                 /* Ensure we are being called with a SCI_{GET, SET} register */
2545                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2546                         return -EINVAL;
2547                 if (!sci_open(toshiba_acpi))
2548                         return -EIO;
2549                 ret = toshiba_acpi_smm_bridge(&regs);
2550                 sci_close(toshiba_acpi);
2551                 if (ret)
2552                         return ret;
2553                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2554                         return -EFAULT;
2555                 break;
2556         default:
2557                 return -EINVAL;
2558         }
2559
2560         return 0;
2561 }
2562
2563 static const struct file_operations toshiba_acpi_fops = {
2564         .owner          = THIS_MODULE,
2565         .unlocked_ioctl = toshiba_acpi_ioctl,
2566         .llseek         = noop_llseek,
2567 };
2568
2569 /*
2570  * WWAN RFKill handlers
2571  */
2572 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2573 {
2574         struct toshiba_acpi_dev *dev = data;
2575         int ret;
2576
2577         ret = toshiba_wireless_status(dev);
2578         if (ret)
2579                 return ret;
2580
2581         if (!dev->killswitch)
2582                 return 0;
2583
2584         return toshiba_wwan_set(dev, !blocked);
2585 }
2586
2587 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2588 {
2589         struct toshiba_acpi_dev *dev = data;
2590
2591         if (toshiba_wireless_status(dev))
2592                 return;
2593
2594         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2595 }
2596
2597 static const struct rfkill_ops wwan_rfk_ops = {
2598         .set_block = toshiba_acpi_wwan_set_block,
2599         .poll = toshiba_acpi_wwan_poll,
2600 };
2601
2602 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2603 {
2604         int ret = toshiba_wireless_status(dev);
2605
2606         if (ret)
2607                 return ret;
2608
2609         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2610                                      &dev->acpi_dev->dev,
2611                                      RFKILL_TYPE_WWAN,
2612                                      &wwan_rfk_ops,
2613                                      dev);
2614         if (!dev->wwan_rfk) {
2615                 pr_err("Unable to allocate WWAN rfkill device\n");
2616                 return -ENOMEM;
2617         }
2618
2619         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2620
2621         ret = rfkill_register(dev->wwan_rfk);
2622         if (ret) {
2623                 pr_err("Unable to register WWAN rfkill device\n");
2624                 rfkill_destroy(dev->wwan_rfk);
2625         }
2626
2627         return ret;
2628 }
2629
2630 /*
2631  * Hotkeys
2632  */
2633 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2634 {
2635         acpi_status status;
2636         u32 result;
2637
2638         status = acpi_evaluate_object(dev->acpi_dev->handle,
2639                                       "ENAB", NULL, NULL);
2640         if (ACPI_FAILURE(status))
2641                 return -ENODEV;
2642
2643         /*
2644          * Enable the "Special Functions" mode only if they are
2645          * supported and if they are activated.
2646          */
2647         if (dev->kbd_function_keys_supported && dev->special_functions)
2648                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2649                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2650         else
2651                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2652
2653         if (result == TOS_FAILURE)
2654                 return -EIO;
2655         else if (result == TOS_NOT_SUPPORTED)
2656                 return -ENODEV;
2657
2658         return 0;
2659 }
2660
2661 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2662                                       struct serio *port)
2663 {
2664         if (str & I8042_STR_AUXDATA)
2665                 return false;
2666
2667         if (unlikely(data == 0xe0))
2668                 return false;
2669
2670         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2671                 schedule_work(&toshiba_acpi->hotkey_work);
2672                 return true;
2673         }
2674
2675         return false;
2676 }
2677
2678 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2679 {
2680         acpi_handle ec_handle = ec_get_handle();
2681         acpi_status status;
2682
2683         if (!ec_handle)
2684                 return;
2685
2686         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2687         if (ACPI_FAILURE(status))
2688                 pr_err("ACPI NTFY method execution failed\n");
2689 }
2690
2691 /*
2692  * Returns hotkey scancode, or < 0 on failure.
2693  */
2694 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2695 {
2696         unsigned long long value;
2697         acpi_status status;
2698
2699         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2700                                       NULL, &value);
2701         if (ACPI_FAILURE(status)) {
2702                 pr_err("ACPI INFO method execution failed\n");
2703                 return -EIO;
2704         }
2705
2706         return value;
2707 }
2708
2709 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2710                                        int scancode)
2711 {
2712         if (scancode == 0x100)
2713                 return;
2714
2715         /* Act on key press; ignore key release */
2716         if (scancode & 0x80)
2717                 return;
2718
2719         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2720                 pr_info("Unknown key %x\n", scancode);
2721 }
2722
2723 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2724 {
2725         if (dev->info_supported) {
2726                 int scancode = toshiba_acpi_query_hotkey(dev);
2727
2728                 if (scancode < 0) {
2729                         pr_err("Failed to query hotkey event\n");
2730                 } else if (scancode != 0) {
2731                         toshiba_acpi_report_hotkey(dev, scancode);
2732                         dev->key_event_valid = 1;
2733                         dev->last_key_event = scancode;
2734                 }
2735         } else if (dev->system_event_supported) {
2736                 u32 result;
2737                 u32 value;
2738                 int retries = 3;
2739
2740                 do {
2741                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2742                         switch (result) {
2743                         case TOS_SUCCESS:
2744                                 toshiba_acpi_report_hotkey(dev, (int)value);
2745                                 dev->key_event_valid = 1;
2746                                 dev->last_key_event = value;
2747                                 break;
2748                         case TOS_NOT_SUPPORTED:
2749                                 /*
2750                                  * This is a workaround for an unresolved
2751                                  * issue on some machines where system events
2752                                  * sporadically become disabled.
2753                                  */
2754                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2755                                 if (result == TOS_SUCCESS)
2756                                         pr_notice("Re-enabled hotkeys\n");
2757                                 /* Fall through */
2758                         default:
2759                                 retries--;
2760                                 break;
2761                         }
2762                 } while (retries && result != TOS_FIFO_EMPTY);
2763         }
2764 }
2765
2766 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2767 {
2768         const struct key_entry *keymap = toshiba_acpi_keymap;
2769         acpi_handle ec_handle;
2770         int error;
2771
2772         if (disable_hotkeys) {
2773                 pr_info("Hotkeys disabled by module parameter\n");
2774                 return 0;
2775         }
2776
2777         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2778                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2779                 return 0;
2780         }
2781
2782         error = toshiba_acpi_enable_hotkeys(dev);
2783         if (error)
2784                 return error;
2785
2786         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2787                 pr_notice("Unable to query Hotkey Event Type\n");
2788
2789         dev->hotkey_dev = input_allocate_device();
2790         if (!dev->hotkey_dev)
2791                 return -ENOMEM;
2792
2793         dev->hotkey_dev->name = "Toshiba input device";
2794         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2795         dev->hotkey_dev->id.bustype = BUS_HOST;
2796
2797         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2798             !dev->kbd_function_keys_supported)
2799                 keymap = toshiba_acpi_keymap;
2800         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2801                  dev->kbd_function_keys_supported)
2802                 keymap = toshiba_acpi_alt_keymap;
2803         else
2804                 pr_info("Unknown event type received %x\n",
2805                         dev->hotkey_event_type);
2806         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2807         if (error)
2808                 goto err_free_dev;
2809
2810         /*
2811          * For some machines the SCI responsible for providing hotkey
2812          * notification doesn't fire. We can trigger the notification
2813          * whenever the Fn key is pressed using the NTFY method, if
2814          * supported, so if it's present set up an i8042 key filter
2815          * for this purpose.
2816          */
2817         ec_handle = ec_get_handle();
2818         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2819                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2820
2821                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2822                 if (error) {
2823                         pr_err("Error installing key filter\n");
2824                         goto err_free_dev;
2825                 }
2826
2827                 dev->ntfy_supported = 1;
2828         }
2829
2830         /*
2831          * Determine hotkey query interface. Prefer using the INFO
2832          * method when it is available.
2833          */
2834         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2835                 dev->info_supported = 1;
2836         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2837                 dev->system_event_supported = 1;
2838
2839         if (!dev->info_supported && !dev->system_event_supported) {
2840                 pr_warn("No hotkey query interface found\n");
2841                 goto err_remove_filter;
2842         }
2843
2844         error = input_register_device(dev->hotkey_dev);
2845         if (error) {
2846                 pr_info("Unable to register input device\n");
2847                 goto err_remove_filter;
2848         }
2849
2850         return 0;
2851
2852  err_remove_filter:
2853         if (dev->ntfy_supported)
2854                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2855  err_free_dev:
2856         input_free_device(dev->hotkey_dev);
2857         dev->hotkey_dev = NULL;
2858         return error;
2859 }
2860
2861 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2862 {
2863         struct backlight_properties props;
2864         int brightness;
2865         int ret;
2866
2867         /*
2868          * Some machines don't support the backlight methods at all, and
2869          * others support it read-only. Either of these is pretty useless,
2870          * so only register the backlight device if the backlight method
2871          * supports both reads and writes.
2872          */
2873         brightness = __get_lcd_brightness(dev);
2874         if (brightness < 0)
2875                 return 0;
2876         /*
2877          * If transflective backlight is supported and the brightness is zero
2878          * (lowest brightness level), the set_lcd_brightness function will
2879          * activate the transflective backlight, making the LCD appear to be
2880          * turned off, simply increment the brightness level to avoid that.
2881          */
2882         if (dev->tr_backlight_supported && brightness == 0)
2883                 brightness++;
2884         ret = set_lcd_brightness(dev, brightness);
2885         if (ret) {
2886                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2887                 return 0;
2888         }
2889
2890         /*
2891          * Tell acpi-video-detect code to prefer vendor backlight on all
2892          * systems with transflective backlight and on dmi matched systems.
2893          */
2894         if (dev->tr_backlight_supported ||
2895             dmi_check_system(toshiba_vendor_backlight_dmi))
2896                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2897
2898         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2899                 return 0;
2900
2901         memset(&props, 0, sizeof(props));
2902         props.type = BACKLIGHT_PLATFORM;
2903         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2904
2905         /* Adding an extra level and having 0 change to transflective mode */
2906         if (dev->tr_backlight_supported)
2907                 props.max_brightness++;
2908
2909         dev->backlight_dev = backlight_device_register("toshiba",
2910                                                        &dev->acpi_dev->dev,
2911                                                        dev,
2912                                                        &toshiba_backlight_data,
2913                                                        &props);
2914         if (IS_ERR(dev->backlight_dev)) {
2915                 ret = PTR_ERR(dev->backlight_dev);
2916                 pr_err("Could not register toshiba backlight device\n");
2917                 dev->backlight_dev = NULL;
2918                 return ret;
2919         }
2920
2921         dev->backlight_dev->props.brightness = brightness;
2922         return 0;
2923 }
2924
2925 static void print_supported_features(struct toshiba_acpi_dev *dev)
2926 {
2927         pr_info("Supported laptop features:");
2928
2929         if (dev->hotkey_dev)
2930                 pr_cont(" hotkeys");
2931         if (dev->backlight_dev)
2932                 pr_cont(" backlight");
2933         if (dev->video_supported)
2934                 pr_cont(" video-out");
2935         if (dev->fan_supported)
2936                 pr_cont(" fan");
2937         if (dev->tr_backlight_supported)
2938                 pr_cont(" transflective-backlight");
2939         if (dev->illumination_supported)
2940                 pr_cont(" illumination");
2941         if (dev->kbd_illum_supported)
2942                 pr_cont(" keyboard-backlight");
2943         if (dev->touchpad_supported)
2944                 pr_cont(" touchpad");
2945         if (dev->eco_supported)
2946                 pr_cont(" eco-led");
2947         if (dev->accelerometer_supported)
2948                 pr_cont(" accelerometer-axes");
2949         if (dev->usb_sleep_charge_supported)
2950                 pr_cont(" usb-sleep-charge");
2951         if (dev->usb_rapid_charge_supported)
2952                 pr_cont(" usb-rapid-charge");
2953         if (dev->usb_sleep_music_supported)
2954                 pr_cont(" usb-sleep-music");
2955         if (dev->kbd_function_keys_supported)
2956                 pr_cont(" special-function-keys");
2957         if (dev->panel_power_on_supported)
2958                 pr_cont(" panel-power-on");
2959         if (dev->usb_three_supported)
2960                 pr_cont(" usb3");
2961         if (dev->wwan_supported)
2962                 pr_cont(" wwan");
2963         if (dev->cooling_method_supported)
2964                 pr_cont(" cooling-method");
2965
2966         pr_cont("\n");
2967 }
2968
2969 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2970 {
2971         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2972
2973         misc_deregister(&dev->miscdev);
2974
2975         remove_toshiba_proc_entries(dev);
2976
2977         if (dev->accelerometer_supported && dev->indio_dev) {
2978                 iio_device_unregister(dev->indio_dev);
2979                 iio_device_free(dev->indio_dev);
2980         }
2981
2982         if (dev->sysfs_created)
2983                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2984                                    &toshiba_attr_group);
2985
2986         if (dev->ntfy_supported) {
2987                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2988                 cancel_work_sync(&dev->hotkey_work);
2989         }
2990
2991         if (dev->hotkey_dev)
2992                 input_unregister_device(dev->hotkey_dev);
2993
2994         backlight_device_unregister(dev->backlight_dev);
2995
2996         if (dev->illumination_led_registered)
2997                 led_classdev_unregister(&dev->led_dev);
2998
2999         if (dev->kbd_led_registered)
3000                 led_classdev_unregister(&dev->kbd_led);
3001
3002         if (dev->eco_led_registered)
3003                 led_classdev_unregister(&dev->eco_led);
3004
3005         if (dev->wwan_rfk) {
3006                 rfkill_unregister(dev->wwan_rfk);
3007                 rfkill_destroy(dev->wwan_rfk);
3008         }
3009
3010         if (toshiba_acpi)
3011                 toshiba_acpi = NULL;
3012
3013         kfree(dev);
3014
3015         return 0;
3016 }
3017
3018 static const char *find_hci_method(acpi_handle handle)
3019 {
3020         if (acpi_has_method(handle, "GHCI"))
3021                 return "GHCI";
3022
3023         if (acpi_has_method(handle, "SPFC"))
3024                 return "SPFC";
3025
3026         return NULL;
3027 }
3028
3029 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3030 {
3031         struct toshiba_acpi_dev *dev;
3032         const char *hci_method;
3033         u32 dummy;
3034         int ret = 0;
3035
3036         if (toshiba_acpi)
3037                 return -EBUSY;
3038
3039         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3040                TOSHIBA_ACPI_VERSION);
3041
3042         hci_method = find_hci_method(acpi_dev->handle);
3043         if (!hci_method) {
3044                 pr_err("HCI interface not found\n");
3045                 return -ENODEV;
3046         }
3047
3048         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3049         if (!dev)
3050                 return -ENOMEM;
3051         dev->acpi_dev = acpi_dev;
3052         dev->method_hci = hci_method;
3053         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3054         dev->miscdev.name = "toshiba_acpi";
3055         dev->miscdev.fops = &toshiba_acpi_fops;
3056
3057         ret = misc_register(&dev->miscdev);
3058         if (ret) {
3059                 pr_err("Failed to register miscdevice\n");
3060                 kfree(dev);
3061                 return ret;
3062         }
3063
3064         acpi_dev->driver_data = dev;
3065         dev_set_drvdata(&acpi_dev->dev, dev);
3066
3067         /* Query the BIOS for supported features */
3068
3069         /*
3070          * The "Special Functions" are always supported by the laptops
3071          * with the new keyboard layout, query for its presence to help
3072          * determine the keymap layout to use.
3073          */
3074         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3075         dev->kbd_function_keys_supported = !ret;
3076
3077         dev->hotkey_event_type = 0;
3078         if (toshiba_acpi_setup_keyboard(dev))
3079                 pr_info("Unable to activate hotkeys\n");
3080
3081         /* Determine whether or not BIOS supports transflective backlight */
3082         ret = get_tr_backlight_status(dev, &dummy);
3083         dev->tr_backlight_supported = !ret;
3084
3085         ret = toshiba_acpi_setup_backlight(dev);
3086         if (ret)
3087                 goto error;
3088
3089         toshiba_illumination_available(dev);
3090         if (dev->illumination_supported) {
3091                 dev->led_dev.name = "toshiba::illumination";
3092                 dev->led_dev.max_brightness = 1;
3093                 dev->led_dev.brightness_set = toshiba_illumination_set;
3094                 dev->led_dev.brightness_get = toshiba_illumination_get;
3095                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3096                         dev->illumination_led_registered = true;
3097         }
3098
3099         toshiba_eco_mode_available(dev);
3100         if (dev->eco_supported) {
3101                 dev->eco_led.name = "toshiba::eco_mode";
3102                 dev->eco_led.max_brightness = 1;
3103                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3104                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3105                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3106                         dev->eco_led_registered = true;
3107         }
3108
3109         toshiba_kbd_illum_available(dev);
3110         /*
3111          * Only register the LED if KBD illumination is supported
3112          * and the keyboard backlight operation mode is set to FN-Z
3113          * or we detect a second gen keyboard backlight
3114          */
3115         if (dev->kbd_illum_supported &&
3116             (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3117                 dev->kbd_led.name = "toshiba::kbd_backlight";
3118                 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3119                 dev->kbd_led.max_brightness = 1;
3120                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3121                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3122                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3123                         dev->kbd_led_registered = true;
3124         }
3125
3126         ret = toshiba_touchpad_get(dev, &dummy);
3127         dev->touchpad_supported = !ret;
3128
3129         toshiba_accelerometer_available(dev);
3130         if (dev->accelerometer_supported) {
3131                 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3132                 if (!dev->indio_dev) {
3133                         pr_err("Unable to allocate iio device\n");
3134                         goto iio_error;
3135                 }
3136
3137                 pr_info("Registering Toshiba accelerometer iio device\n");
3138
3139                 dev->indio_dev->info = &toshiba_iio_accel_info;
3140                 dev->indio_dev->name = "Toshiba accelerometer";
3141                 dev->indio_dev->dev.parent = &acpi_dev->dev;
3142                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3143                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3144                 dev->indio_dev->num_channels =
3145                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3146
3147                 ret = iio_device_register(dev->indio_dev);
3148                 if (ret < 0) {
3149                         pr_err("Unable to register iio device\n");
3150                         iio_device_free(dev->indio_dev);
3151                 }
3152         }
3153 iio_error:
3154
3155         toshiba_usb_sleep_charge_available(dev);
3156
3157         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3158         dev->usb_rapid_charge_supported = !ret;
3159
3160         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3161         dev->usb_sleep_music_supported = !ret;
3162
3163         ret = toshiba_panel_power_on_get(dev, &dummy);
3164         dev->panel_power_on_supported = !ret;
3165
3166         ret = toshiba_usb_three_get(dev, &dummy);
3167         dev->usb_three_supported = !ret;
3168
3169         ret = get_video_status(dev, &dummy);
3170         dev->video_supported = !ret;
3171
3172         ret = get_fan_status(dev, &dummy);
3173         dev->fan_supported = !ret;
3174
3175         toshiba_wwan_available(dev);
3176         if (dev->wwan_supported)
3177                 toshiba_acpi_setup_wwan_rfkill(dev);
3178
3179         toshiba_cooling_method_available(dev);
3180
3181         print_supported_features(dev);
3182
3183         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3184                                  &toshiba_attr_group);
3185         if (ret) {
3186                 dev->sysfs_created = 0;
3187                 goto error;
3188         }
3189         dev->sysfs_created = !ret;
3190
3191         create_toshiba_proc_entries(dev);
3192
3193         toshiba_acpi = dev;
3194
3195         return 0;
3196
3197 error:
3198         toshiba_acpi_remove(acpi_dev);
3199         return ret;
3200 }
3201
3202 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3203 {
3204         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3205
3206         switch (event) {
3207         case 0x80: /* Hotkeys and some system events */
3208                 /*
3209                  * Machines with this WMI GUID aren't supported due to bugs in
3210                  * their AML.
3211                  *
3212                  * Return silently to avoid triggering a netlink event.
3213                  */
3214                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3215                         return;
3216                 toshiba_acpi_process_hotkeys(dev);
3217                 break;
3218         case 0x81: /* Dock events */
3219         case 0x82:
3220         case 0x83:
3221                 pr_info("Dock event received %x\n", event);
3222                 break;
3223         case 0x88: /* Thermal events */
3224                 pr_info("Thermal event received\n");
3225                 break;
3226         case 0x8f: /* LID closed */
3227         case 0x90: /* LID is closed and Dock has been ejected */
3228                 break;
3229         case 0x8c: /* SATA power events */
3230         case 0x8b:
3231                 pr_info("SATA power event received %x\n", event);
3232                 break;
3233         case 0x92: /* Keyboard backlight mode changed */
3234                 dev->kbd_event_generated = true;
3235                 /* Update sysfs entries */
3236                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3237                                        &toshiba_attr_group))
3238                         pr_err("Unable to update sysfs entries\n");
3239                 /* Notify LED subsystem about keyboard backlight change */
3240                 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3241                         led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3242                                         (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3243                                         LED_FULL : LED_OFF);
3244                 break;
3245         case 0x85: /* Unknown */
3246         case 0x8d: /* Unknown */
3247         case 0x8e: /* Unknown */
3248         case 0x94: /* Unknown */
3249         case 0x95: /* Unknown */
3250         default:
3251                 pr_info("Unknown event received %x\n", event);
3252                 break;
3253         }
3254
3255         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3256                                         dev_name(&acpi_dev->dev),
3257                                         event, (event == 0x80) ?
3258                                         dev->last_key_event : 0);
3259 }
3260
3261 #ifdef CONFIG_PM_SLEEP
3262 static int toshiba_acpi_suspend(struct device *device)
3263 {
3264         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3265
3266         if (dev->hotkey_dev) {
3267                 u32 result;
3268
3269                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3270                 if (result != TOS_SUCCESS)
3271                         pr_info("Unable to disable hotkeys\n");
3272         }
3273
3274         return 0;
3275 }
3276
3277 static int toshiba_acpi_resume(struct device *device)
3278 {
3279         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3280
3281         if (dev->hotkey_dev) {
3282                 if (toshiba_acpi_enable_hotkeys(dev))
3283                         pr_info("Unable to re-enable hotkeys\n");
3284         }
3285
3286         if (dev->wwan_rfk) {
3287                 if (!toshiba_wireless_status(dev))
3288                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3289         }
3290
3291         return 0;
3292 }
3293 #endif
3294
3295 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3296                          toshiba_acpi_suspend, toshiba_acpi_resume);
3297
3298 static struct acpi_driver toshiba_acpi_driver = {
3299         .name   = "Toshiba ACPI driver",
3300         .owner  = THIS_MODULE,
3301         .ids    = toshiba_device_ids,
3302         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3303         .ops    = {
3304                 .add            = toshiba_acpi_add,
3305                 .remove         = toshiba_acpi_remove,
3306                 .notify         = toshiba_acpi_notify,
3307         },
3308         .drv.pm = &toshiba_acpi_pm,
3309 };
3310
3311 static int __init toshiba_acpi_init(void)
3312 {
3313         int ret;
3314
3315         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3316         if (!toshiba_proc_dir) {
3317                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3318                 return -ENODEV;
3319         }
3320
3321         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3322         if (ret) {
3323                 pr_err("Failed to register ACPI driver: %d\n", ret);
3324                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3325         }
3326
3327         return ret;
3328 }
3329
3330 static void __exit toshiba_acpi_exit(void)
3331 {
3332         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3333         if (toshiba_proc_dir)
3334                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3335 }
3336
3337 module_init(toshiba_acpi_init);
3338 module_exit(toshiba_acpi_exit);