drivers/platform/x86/toshiba_acpi.c

   1 /*
   2  *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
   3  *
   4  *  Copyright (C) 2002-2004 John Belmonte
   5  *  Copyright (C) 2008 Philip Langdale
   6  *  Copyright (C) 2010 Pierre Ducroquet
   7  *  Copyright (C) 2014-2016 Azael Avalos
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  The full GNU General Public License is included in this distribution in
  20  *  the file called "COPYING".
  21  *
  22  *  The devolpment page for this driver is located at
  23  *  http://memebeam.org/toys/ToshibaAcpiDriver.
  24  *
  25  *  Credits:
  26  *      Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
  27  *              engineering the Windows drivers
  28  *      Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
  29  *      Rob Miller - TV out and hotkeys help
  30  */
  31
  32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  33
  34 #define TOSHIBA_ACPI_VERSION    "0.24"
  35 #define PROC_INTERFACE_VERSION  1
  36
  37 #include <linux/kernel.h>
  38 #include <linux/module.h>
  39 #include <linux/moduleparam.h>
  40 #include <linux/init.h>
  41 #include <linux/types.h>
  42 #include <linux/proc_fs.h>
  43 #include <linux/seq_file.h>
  44 #include <linux/backlight.h>
  45 #include <linux/input.h>
  46 #include <linux/input/sparse-keymap.h>
  47 #include <linux/leds.h>
  48 #include <linux/slab.h>
  49 #include <linux/workqueue.h>
  50 #include <linux/i8042.h>
  51 #include <linux/acpi.h>
  52 #include <linux/dmi.h>
  53 #include <linux/uaccess.h>
  54 #include <linux/miscdevice.h>
  55 #include <linux/rfkill.h>
  56 #include <linux/iio/iio.h>
  57 #include <linux/toshiba.h>
  58 #include <acpi/video.h>
  59
  60 MODULE_AUTHOR("John Belmonte");
  61 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  62 MODULE_LICENSE("GPL");
  63
  64 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  65
  66 /* Scan code for Fn key on TOS1900 models */
  67 #define TOS1900_FN_SCAN         0x6e
  68
  69 /* Toshiba ACPI method paths */
  70 #define METHOD_VIDEO_OUT        "\\_SB_.VALX.DSSX"
  71
  72 /*
  73  * The Toshiba configuration interface is composed of the HCI and the SCI,
  74  * which are defined as follows:
  75  *
  76  * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  77  * be uniform across all their models.  Ideally we would just call
  78  * dedicated ACPI methods instead of using this primitive interface.
  79  * However the ACPI methods seem to be incomplete in some areas (for
  80  * example they allow setting, but not reading, the LCD brightness value),
  81  * so this is still useful.
  82  *
  83  * SCI stands for "System Configuration Interface" which aim is to
  84  * conceal differences in hardware between different models.
  85  */
  86
  87 #define TCI_WORDS                       6
  88
  89 /* Operations */
  90 #define HCI_SET                         0xff00
  91 #define HCI_GET                         0xfe00
  92 #define SCI_OPEN                        0xf100
  93 #define SCI_CLOSE                       0xf200
  94 #define SCI_GET                         0xf300
  95 #define SCI_SET                         0xf400
  96
  97 /* Return codes */
  98 #define TOS_SUCCESS                     0x0000
  99 #define TOS_SUCCESS2                    0x0001
 100 #define TOS_OPEN_CLOSE_OK               0x0044
 101 #define TOS_FAILURE                     0x1000
 102 #define TOS_NOT_SUPPORTED               0x8000
 103 #define TOS_ALREADY_OPEN                0x8100
 104 #define TOS_NOT_OPENED                  0x8200
 105 #define TOS_INPUT_DATA_ERROR            0x8300
 106 #define TOS_WRITE_PROTECTED             0x8400
 107 #define TOS_NOT_PRESENT                 0x8600
 108 #define TOS_FIFO_EMPTY                  0x8c00
 109 #define TOS_DATA_NOT_AVAILABLE          0x8d20
 110 #define TOS_NOT_INITIALIZED             0x8d50
 111 #define TOS_NOT_INSTALLED               0x8e00
 112
 113 /* Registers */
 114 #define HCI_FAN                         0x0004
 115 #define HCI_TR_BACKLIGHT                0x0005
 116 #define HCI_SYSTEM_EVENT                0x0016
 117 #define HCI_VIDEO_OUT                   0x001c
 118 #define HCI_HOTKEY_EVENT                0x001e
 119 #define HCI_LCD_BRIGHTNESS              0x002a
 120 #define HCI_WIRELESS                    0x0056
 121 #define HCI_ACCELEROMETER               0x006d
 122 #define HCI_COOLING_METHOD              0x007f
 123 #define HCI_KBD_ILLUMINATION            0x0095
 124 #define HCI_ECO_MODE                    0x0097
 125 #define HCI_ACCELEROMETER2              0x00a6
 126 #define HCI_SYSTEM_INFO                 0xc000
 127 #define SCI_PANEL_POWER_ON              0x010d
 128 #define SCI_ILLUMINATION                0x014e
 129 #define SCI_USB_SLEEP_CHARGE            0x0150
 130 #define SCI_KBD_ILLUM_STATUS            0x015c
 131 #define SCI_USB_SLEEP_MUSIC             0x015e
 132 #define SCI_USB_THREE                   0x0169
 133 #define SCI_TOUCHPAD                    0x050e
 134 #define SCI_KBD_FUNCTION_KEYS           0x0522
 135
 136 /* Field definitions */
 137 #define HCI_ACCEL_MASK                  0x7fff
 138 #define HCI_ACCEL_DIRECTION_MASK        0x8000
 139 #define HCI_HOTKEY_DISABLE              0x0b
 140 #define HCI_HOTKEY_ENABLE               0x09
 141 #define HCI_HOTKEY_SPECIAL_FUNCTIONS    0x10
 142 #define HCI_LCD_BRIGHTNESS_BITS         3
 143 #define HCI_LCD_BRIGHTNESS_SHIFT        (16-HCI_LCD_BRIGHTNESS_BITS)
 144 #define HCI_LCD_BRIGHTNESS_LEVELS       (1 << HCI_LCD_BRIGHTNESS_BITS)
 145 #define HCI_MISC_SHIFT                  0x10
 146 #define HCI_SYSTEM_TYPE1                0x10
 147 #define HCI_SYSTEM_TYPE2                0x11
 148 #define HCI_VIDEO_OUT_LCD               0x1
 149 #define HCI_VIDEO_OUT_CRT               0x2
 150 #define HCI_VIDEO_OUT_TV                0x4
 151 #define SCI_KBD_MODE_MASK               0x1f
 152 #define SCI_KBD_MODE_FNZ                0x1
 153 #define SCI_KBD_MODE_AUTO               0x2
 154 #define SCI_KBD_MODE_ON                 0x8
 155 #define SCI_KBD_MODE_OFF                0x10
 156 #define SCI_KBD_TIME_MAX                0x3c001a
 157 #define HCI_WIRELESS_STATUS             0x1
 158 #define HCI_WIRELESS_WWAN               0x3
 159 #define HCI_WIRELESS_WWAN_STATUS        0x2000
 160 #define HCI_WIRELESS_WWAN_POWER         0x4000
 161 #define SCI_USB_CHARGE_MODE_MASK        0xff
 162 #define SCI_USB_CHARGE_DISABLED         0x00
 163 #define SCI_USB_CHARGE_ALTERNATE        0x09
 164 #define SCI_USB_CHARGE_TYPICAL          0x11
 165 #define SCI_USB_CHARGE_AUTO             0x21
 166 #define SCI_USB_CHARGE_BAT_MASK         0x7
 167 #define SCI_USB_CHARGE_BAT_LVL_OFF      0x1
 168 #define SCI_USB_CHARGE_BAT_LVL_ON       0x4
 169 #define SCI_USB_CHARGE_BAT_LVL          0x0200
 170 #define SCI_USB_CHARGE_RAPID_DSP        0x0300
 171
 172 struct toshiba_acpi_dev {
 173         struct acpi_device *acpi_dev;
 174         const char *method_hci;
 175         struct input_dev *hotkey_dev;
 176         struct work_struct hotkey_work;
 177         struct backlight_device *backlight_dev;
 178         struct led_classdev led_dev;
 179         struct led_classdev kbd_led;
 180         struct led_classdev eco_led;
 181         struct miscdevice miscdev;
 182         struct rfkill *wwan_rfk;
 183         struct iio_dev *indio_dev;
 184
 185         int force_fan;
 186         int last_key_event;
 187         int key_event_valid;
 188         int kbd_type;
 189         int kbd_mode;
 190         int kbd_time;
 191         int usbsc_bat_level;
 192         int usbsc_mode_base;
 193         int hotkey_event_type;
 194         int max_cooling_method;
 195
 196         unsigned int illumination_supported:1;
 197         unsigned int video_supported:1;
 198         unsigned int fan_supported:1;
 199         unsigned int system_event_supported:1;
 200         unsigned int ntfy_supported:1;
 201         unsigned int info_supported:1;
 202         unsigned int tr_backlight_supported:1;
 203         unsigned int kbd_illum_supported:1;
 204         unsigned int touchpad_supported:1;
 205         unsigned int eco_supported:1;
 206         unsigned int accelerometer_supported:1;
 207         unsigned int usb_sleep_charge_supported:1;
 208         unsigned int usb_rapid_charge_supported:1;
 209         unsigned int usb_sleep_music_supported:1;
 210         unsigned int kbd_function_keys_supported:1;
 211         unsigned int panel_power_on_supported:1;
 212         unsigned int usb_three_supported:1;
 213         unsigned int wwan_supported:1;
 214         unsigned int cooling_method_supported:1;
 215         unsigned int sysfs_created:1;
 216         unsigned int special_functions;
 217
 218         bool kbd_event_generated;
 219         bool kbd_led_registered;
 220         bool illumination_led_registered;
 221         bool eco_led_registered;
 222         bool killswitch;
 223 };
 224
 225 static struct toshiba_acpi_dev *toshiba_acpi;
 226
 227 static bool disable_hotkeys;
 228 module_param(disable_hotkeys, bool, 0444);
 229 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 230
 231 static const struct acpi_device_id toshiba_device_ids[] = {
 232         {"TOS6200", 0},
 233         {"TOS6207", 0},
 234         {"TOS6208", 0},
 235         {"TOS1900", 0},
 236         {"", 0},
 237 };
 238 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 239
 240 static const struct key_entry toshiba_acpi_keymap[] = {
 241         { KE_KEY, 0x9e, { KEY_RFKILL } },
 242         { KE_KEY, 0x101, { KEY_MUTE } },
 243         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 244         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 245         { KE_KEY, 0x10f, { KEY_TAB } },
 246         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 247         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 248         { KE_KEY, 0x13b, { KEY_COFFEE } },
 249         { KE_KEY, 0x13c, { KEY_BATTERY } },
 250         { KE_KEY, 0x13d, { KEY_SLEEP } },
 251         { KE_KEY, 0x13e, { KEY_SUSPEND } },
 252         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 253         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 254         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 255         { KE_KEY, 0x142, { KEY_WLAN } },
 256         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 257         { KE_KEY, 0x17f, { KEY_FN } },
 258         { KE_KEY, 0xb05, { KEY_PROG2 } },
 259         { KE_KEY, 0xb06, { KEY_WWW } },
 260         { KE_KEY, 0xb07, { KEY_MAIL } },
 261         { KE_KEY, 0xb30, { KEY_STOP } },
 262         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 263         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
 264         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 265         { KE_KEY, 0xb5a, { KEY_MEDIA } },
 266         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 267         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 268         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 269         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 270         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 271         { KE_END, 0 },
 272 };
 273
 274 static const struct key_entry toshiba_acpi_alt_keymap[] = {
 275         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 276         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 277         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 278         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 279         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 280         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 281         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 282         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 283         { KE_KEY, 0x157, { KEY_MUTE } },
 284         { KE_KEY, 0x158, { KEY_WLAN } },
 285         { KE_END, 0 },
 286 };
 287
 288 /*
 289  * List of models which have a broken acpi-video backlight interface and thus
 290  * need to use the toshiba (vendor) interface instead.
 291  */
 292 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 293         {}
 294 };
 295
 296 /*
 297  * Utility
 298  */
 299
 300 static inline void _set_bit(u32 *word, u32 mask, int value)
 301 {
 302         *word = (*word & ~mask) | (mask * value);
 303 }
 304
 305 /*
 306  * ACPI interface wrappers
 307  */
 308
 309 static int write_acpi_int(const char *methodName, int val)
 310 {
 311         acpi_status status;
 312
 313         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 314         return (status == AE_OK) ? 0 : -EIO;
 315 }
 316
 317 /*
 318  * Perform a raw configuration call.  Here we don't care about input or output
 319  * buffer format.
 320  */
 321 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 322                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 323 {
 324         union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 325         struct acpi_object_list params;
 326         struct acpi_buffer results;
 327         acpi_status status;
 328         int i;
 329
 330         params.count = TCI_WORDS;
 331         params.pointer = in_objs;
 332         for (i = 0; i < TCI_WORDS; ++i) {
 333                 in_objs[i].type = ACPI_TYPE_INTEGER;
 334                 in_objs[i].integer.value = in[i];
 335         }
 336
 337         results.length = sizeof(out_objs);
 338         results.pointer = out_objs;
 339
 340         status = acpi_evaluate_object(dev->acpi_dev->handle,
 341                                       (char *)dev->method_hci, &params,
 342                                       &results);
 343         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 344                 for (i = 0; i < out_objs->package.count; ++i)
 345                         out[i] = out_objs->package.elements[i].integer.value;
 346         }
 347
 348         return status;
 349 }
 350
 351 /*
 352  * Common hci tasks
 353  *
 354  * In addition to the ACPI status, the HCI system returns a result which
 355  * may be useful (such as "not supported").
 356  */
 357
 358 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 359 {
 360         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 361         u32 out[TCI_WORDS];
 362         acpi_status status = tci_raw(dev, in, out);
 363
 364         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 365 }
 366
 367 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 368 {
 369         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 370         u32 out[TCI_WORDS];
 371         acpi_status status = tci_raw(dev, in, out);
 372
 373         if (ACPI_FAILURE(status))
 374                 return TOS_FAILURE;
 375
 376         *out1 = out[2];
 377
 378         return out[0];
 379 }
 380
 381 /*
 382  * Common sci tasks
 383  */
 384
 385 static int sci_open(struct toshiba_acpi_dev *dev)
 386 {
 387         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 388         u32 out[TCI_WORDS];
 389         acpi_status status = tci_raw(dev, in, out);
 390
 391         if  (ACPI_FAILURE(status)) {
 392                 pr_err("ACPI call to open SCI failed\n");
 393                 return 0;
 394         }
 395
 396         if (out[0] == TOS_OPEN_CLOSE_OK) {
 397                 return 1;
 398         } else if (out[0] == TOS_ALREADY_OPEN) {
 399                 pr_info("Toshiba SCI already opened\n");
 400                 return 1;
 401         } else if (out[0] == TOS_NOT_SUPPORTED) {
 402                 /*
 403                  * Some BIOSes do not have the SCI open/close functions
 404                  * implemented and return 0x8000 (Not Supported), failing to
 405                  * register some supported features.
 406                  *
 407                  * Simply return 1 if we hit those affected laptops to make the
 408                  * supported features work.
 409                  *
 410                  * In the case that some laptops really do not support the SCI,
 411                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 412                  * and thus, not registering support for the queried feature.
 413                  */
 414                 return 1;
 415         } else if (out[0] == TOS_NOT_PRESENT) {
 416                 pr_info("Toshiba SCI is not present\n");
 417         }
 418
 419         return 0;
 420 }
 421
 422 static void sci_close(struct toshiba_acpi_dev *dev)
 423 {
 424         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 425         u32 out[TCI_WORDS];
 426         acpi_status status = tci_raw(dev, in, out);
 427
 428         if (ACPI_FAILURE(status)) {
 429                 pr_err("ACPI call to close SCI failed\n");
 430                 return;
 431         }
 432
 433         if (out[0] == TOS_OPEN_CLOSE_OK)
 434                 return;
 435         else if (out[0] == TOS_NOT_OPENED)
 436                 pr_info("Toshiba SCI not opened\n");
 437         else if (out[0] == TOS_NOT_PRESENT)
 438                 pr_info("Toshiba SCI is not present\n");
 439 }
 440
 441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 442 {
 443         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 444         u32 out[TCI_WORDS];
 445         acpi_status status = tci_raw(dev, in, out);
 446
 447         if (ACPI_FAILURE(status))
 448                 return TOS_FAILURE;
 449
 450         *out1 = out[2];
 451
 452         return out[0];
 453 }
 454
 455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 456 {
 457         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 458         u32 out[TCI_WORDS];
 459         acpi_status status = tci_raw(dev, in, out);
 460
 461         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 462 }
 463
 464 /* Illumination support */
 465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 466 {
 467         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 468         u32 out[TCI_WORDS];
 469         acpi_status status;
 470
 471         dev->illumination_supported = 0;
 472         dev->illumination_led_registered = false;
 473
 474         if (!sci_open(dev))
 475                 return;
 476
 477         status = tci_raw(dev, in, out);
 478         sci_close(dev);
 479         if (ACPI_FAILURE(status)) {
 480                 pr_err("ACPI call to query Illumination support failed\n");
 481                 return;
 482         }
 483
 484         if (out[0] != TOS_SUCCESS)
 485                 return;
 486
 487         dev->illumination_supported = 1;
 488 }
 489
 490 static void toshiba_illumination_set(struct led_classdev *cdev,
 491                                      enum led_brightness brightness)
 492 {
 493         struct toshiba_acpi_dev *dev = container_of(cdev,
 494                         struct toshiba_acpi_dev, led_dev);
 495         u32 result;
 496         u32 state;
 497
 498         /* First request : initialize communication. */
 499         if (!sci_open(dev))
 500                 return;
 501
 502         /* Switch the illumination on/off */
 503         state = brightness ? 1 : 0;
 504         result = sci_write(dev, SCI_ILLUMINATION, state);
 505         sci_close(dev);
 506         if (result == TOS_FAILURE)
 507                 pr_err("ACPI call for illumination failed\n");
 508 }
 509
 510 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 511 {
 512         struct toshiba_acpi_dev *dev = container_of(cdev,
 513                         struct toshiba_acpi_dev, led_dev);
 514         u32 result;
 515         u32 state;
 516
 517         /* First request : initialize communication. */
 518         if (!sci_open(dev))
 519                 return LED_OFF;
 520
 521         /* Check the illumination */
 522         result = sci_read(dev, SCI_ILLUMINATION, &state);
 523         sci_close(dev);
 524         if (result == TOS_FAILURE) {
 525                 pr_err("ACPI call for illumination failed\n");
 526                 return LED_OFF;
 527         } else if (result != TOS_SUCCESS) {
 528                 return LED_OFF;
 529         }
 530
 531         return state ? LED_FULL : LED_OFF;
 532 }
 533
 534 /* KBD Illumination */
 535 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 536 {
 537         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 538         u32 out[TCI_WORDS];
 539         acpi_status status;
 540
 541         dev->kbd_illum_supported = 0;
 542         dev->kbd_led_registered = false;
 543         dev->kbd_event_generated = false;
 544
 545         if (!sci_open(dev))
 546                 return;
 547
 548         status = tci_raw(dev, in, out);
 549         sci_close(dev);
 550         if (ACPI_FAILURE(status)) {
 551                 pr_err("ACPI call to query kbd illumination support failed\n");
 552                 return;
 553         }
 554
 555         if (out[0] != TOS_SUCCESS)
 556                 return;
 557
 558         /*
 559          * Check for keyboard backlight timeout max value,
 560          * previous kbd backlight implementation set this to
 561          * 0x3c0003, and now the new implementation set this
 562          * to 0x3c001a, use this to distinguish between them.
 563          */
 564         if (out[3] == SCI_KBD_TIME_MAX)
 565                 dev->kbd_type = 2;
 566         else
 567                 dev->kbd_type = 1;
 568         /* Get the current keyboard backlight mode */
 569         dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 570         /* Get the current time (1-60 seconds) */
 571         dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 572         /* Flag as supported */
 573         dev->kbd_illum_supported = 1;
 574 }
 575
 576 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 577 {
 578         u32 result;
 579
 580         if (!sci_open(dev))
 581                 return -EIO;
 582
 583         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 584         sci_close(dev);
 585         if (result == TOS_FAILURE)
 586                 pr_err("ACPI call to set KBD backlight status failed\n");
 587         else if (result == TOS_NOT_SUPPORTED)
 588                 return -ENODEV;
 589
 590         return result == TOS_SUCCESS ? 0 : -EIO;
 591 }
 592
 593 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 594 {
 595         u32 result;
 596
 597         if (!sci_open(dev))
 598                 return -EIO;
 599
 600         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 601         sci_close(dev);
 602         if (result == TOS_FAILURE)
 603                 pr_err("ACPI call to get KBD backlight status failed\n");
 604         else if (result == TOS_NOT_SUPPORTED)
 605                 return -ENODEV;
 606
 607         return result == TOS_SUCCESS ? 0 : -EIO;
 608 }
 609
 610 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 611 {
 612         struct toshiba_acpi_dev *dev = container_of(cdev,
 613                         struct toshiba_acpi_dev, kbd_led);
 614         u32 result;
 615         u32 state;
 616
 617         /* Check the keyboard backlight state */
 618         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 619         if (result == TOS_FAILURE) {
 620                 pr_err("ACPI call to get the keyboard backlight failed\n");
 621                 return LED_OFF;
 622         } else if (result != TOS_SUCCESS) {
 623                 return LED_OFF;
 624         }
 625
 626         return state ? LED_FULL : LED_OFF;
 627 }
 628
 629 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 630                                      enum led_brightness brightness)
 631 {
 632         struct toshiba_acpi_dev *dev = container_of(cdev,
 633                         struct toshiba_acpi_dev, kbd_led);
 634         u32 result;
 635         u32 state;
 636
 637         /* Set the keyboard backlight state */
 638         state = brightness ? 1 : 0;
 639         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 640         if (result == TOS_FAILURE)
 641                 pr_err("ACPI call to set KBD Illumination mode failed\n");
 642 }
 643
 644 /* TouchPad support */
 645 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 646 {
 647         u32 result;
 648
 649         if (!sci_open(dev))
 650                 return -EIO;
 651
 652         result = sci_write(dev, SCI_TOUCHPAD, state);
 653         sci_close(dev);
 654         if (result == TOS_FAILURE)
 655                 pr_err("ACPI call to set the touchpad failed\n");
 656         else if (result == TOS_NOT_SUPPORTED)
 657                 return -ENODEV;
 658
 659         return result == TOS_SUCCESS ? 0 : -EIO;
 660 }
 661
 662 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 663 {
 664         u32 result;
 665
 666         if (!sci_open(dev))
 667                 return -EIO;
 668
 669         result = sci_read(dev, SCI_TOUCHPAD, state);
 670         sci_close(dev);
 671         if (result == TOS_FAILURE)
 672                 pr_err("ACPI call to query the touchpad failed\n");
 673         else if (result == TOS_NOT_SUPPORTED)
 674                 return -ENODEV;
 675
 676         return result == TOS_SUCCESS ? 0 : -EIO;
 677 }
 678
 679 /* Eco Mode support */
 680 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 681 {
 682         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 683         u32 out[TCI_WORDS];
 684         acpi_status status;
 685
 686         dev->eco_supported = 0;
 687         dev->eco_led_registered = false;
 688
 689         status = tci_raw(dev, in, out);
 690         if (ACPI_FAILURE(status)) {
 691                 pr_err("ACPI call to get ECO led failed\n");
 692                 return;
 693         }
 694
 695         if (out[0] == TOS_INPUT_DATA_ERROR) {
 696                 /*
 697                  * If we receive 0x8300 (Input Data Error), it means that the
 698                  * LED device is present, but that we just screwed the input
 699                  * parameters.
 700                  *
 701                  * Let's query the status of the LED to see if we really have a
 702                  * success response, indicating the actual presense of the LED,
 703                  * bail out otherwise.
 704                  */
 705                 in[3] = 1;
 706                 status = tci_raw(dev, in, out);
 707                 if (ACPI_FAILURE(status)) {
 708                         pr_err("ACPI call to get ECO led failed\n");
 709                         return;
 710                 }
 711
 712                 if (out[0] != TOS_SUCCESS)
 713                         return;
 714
 715                 dev->eco_supported = 1;
 716         }
 717 }
 718
 719 static enum led_brightness
 720 toshiba_eco_mode_get_status(struct led_classdev *cdev)
 721 {
 722         struct toshiba_acpi_dev *dev = container_of(cdev,
 723                         struct toshiba_acpi_dev, eco_led);
 724         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 725         u32 out[TCI_WORDS];
 726         acpi_status status;
 727
 728         status = tci_raw(dev, in, out);
 729         if (ACPI_FAILURE(status)) {
 730                 pr_err("ACPI call to get ECO led failed\n");
 731                 return LED_OFF;
 732         }
 733
 734         if (out[0] != TOS_SUCCESS)
 735                 return LED_OFF;
 736
 737         return out[2] ? LED_FULL : LED_OFF;
 738 }
 739
 740 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 741                                      enum led_brightness brightness)
 742 {
 743         struct toshiba_acpi_dev *dev = container_of(cdev,
 744                         struct toshiba_acpi_dev, eco_led);
 745         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 746         u32 out[TCI_WORDS];
 747         acpi_status status;
 748
 749         /* Switch the Eco Mode led on/off */
 750         in[2] = (brightness) ? 1 : 0;
 751         status = tci_raw(dev, in, out);
 752         if (ACPI_FAILURE(status))
 753                 pr_err("ACPI call to set ECO led failed\n");
 754 }
 755
 756 /* Accelerometer support */
 757 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 758 {
 759         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 760         u32 out[TCI_WORDS];
 761         acpi_status status;
 762
 763         dev->accelerometer_supported = 0;
 764
 765         /*
 766          * Check if the accelerometer call exists,
 767          * this call also serves as initialization
 768          */
 769         status = tci_raw(dev, in, out);
 770         if (ACPI_FAILURE(status)) {
 771                 pr_err("ACPI call to query the accelerometer failed\n");
 772                 return;
 773         }
 774
 775         if (out[0] != TOS_SUCCESS)
 776                 return;
 777
 778         dev->accelerometer_supported = 1;
 779 }
 780
 781 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 782                                      u32 *xy, u32 *z)
 783 {
 784         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 785         u32 out[TCI_WORDS];
 786         acpi_status status;
 787
 788         /* Check the Accelerometer status */
 789         status = tci_raw(dev, in, out);
 790         if (ACPI_FAILURE(status)) {
 791                 pr_err("ACPI call to query the accelerometer failed\n");
 792                 return -EIO;
 793         }
 794
 795         if (out[0] == TOS_NOT_SUPPORTED)
 796                 return -ENODEV;
 797
 798         if (out[0] != TOS_SUCCESS)
 799                 return -EIO;
 800
 801         *xy = out[2];
 802         *z = out[4];
 803
 804         return 0;
 805 }
 806
 807 /* Sleep (Charge and Music) utilities support */
 808 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 809 {
 810         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 811         u32 out[TCI_WORDS];
 812         acpi_status status;
 813
 814         dev->usb_sleep_charge_supported = 0;
 815
 816         if (!sci_open(dev))
 817                 return;
 818
 819         status = tci_raw(dev, in, out);
 820         if (ACPI_FAILURE(status)) {
 821                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 822                 sci_close(dev);
 823                 return;
 824         }
 825
 826         if (out[0] != TOS_SUCCESS) {
 827                 sci_close(dev);
 828                 return;
 829         }
 830
 831         dev->usbsc_mode_base = out[4];
 832
 833         in[5] = SCI_USB_CHARGE_BAT_LVL;
 834         status = tci_raw(dev, in, out);
 835         sci_close(dev);
 836         if (ACPI_FAILURE(status)) {
 837                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 838                 return;
 839         }
 840
 841         if (out[0] != TOS_SUCCESS)
 842                 return;
 843
 844         dev->usbsc_bat_level = out[2];
 845         /* Flag as supported */
 846         dev->usb_sleep_charge_supported = 1;
 847 }
 848
 849 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 850                                         u32 *mode)
 851 {
 852         u32 result;
 853
 854         if (!sci_open(dev))
 855                 return -EIO;
 856
 857         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 858         sci_close(dev);
 859         if (result == TOS_FAILURE)
 860                 pr_err("ACPI call to set USB S&C mode failed\n");
 861         else if (result == TOS_NOT_SUPPORTED)
 862                 return -ENODEV;
 863
 864         return result == TOS_SUCCESS ? 0 : -EIO;
 865 }
 866
 867 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 868                                         u32 mode)
 869 {
 870         u32 result;
 871
 872         if (!sci_open(dev))
 873                 return -EIO;
 874
 875         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 876         sci_close(dev);
 877         if (result == TOS_FAILURE)
 878                 pr_err("ACPI call to set USB S&C mode failed\n");
 879         else if (result == TOS_NOT_SUPPORTED)
 880                 return -ENODEV;
 881
 882         return result == TOS_SUCCESS ? 0 : -EIO;
 883 }
 884
 885 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 886                                               u32 *mode)
 887 {
 888         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 889         u32 out[TCI_WORDS];
 890         acpi_status status;
 891
 892         if (!sci_open(dev))
 893                 return -EIO;
 894
 895         in[5] = SCI_USB_CHARGE_BAT_LVL;
 896         status = tci_raw(dev, in, out);
 897         sci_close(dev);
 898         if (ACPI_FAILURE(status)) {
 899                 pr_err("ACPI call to get USB S&C battery level failed\n");
 900                 return -EIO;
 901         }
 902
 903         if (out[0] == TOS_NOT_SUPPORTED)
 904                 return -ENODEV;
 905
 906         if (out[0] != TOS_SUCCESS)
 907                 return -EIO;
 908
 909         *mode = out[2];
 910
 911         return 0;
 912
 913 }
 914
 915 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 916                                               u32 mode)
 917 {
 918         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 919         u32 out[TCI_WORDS];
 920         acpi_status status;
 921
 922         if (!sci_open(dev))
 923                 return -EIO;
 924
 925         in[2] = mode;
 926         in[5] = SCI_USB_CHARGE_BAT_LVL;
 927         status = tci_raw(dev, in, out);
 928         sci_close(dev);
 929         if (ACPI_FAILURE(status)) {
 930                 pr_err("ACPI call to set USB S&C battery level failed\n");
 931                 return -EIO;
 932         }
 933
 934         if (out[0] == TOS_NOT_SUPPORTED)
 935                 return -ENODEV;
 936
 937         return out[0] == TOS_SUCCESS ? 0 : -EIO;
 938 }
 939
 940 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 941                                         u32 *state)
 942 {
 943         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 944         u32 out[TCI_WORDS];
 945         acpi_status status;
 946
 947         if (!sci_open(dev))
 948                 return -EIO;
 949
 950         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 951         status = tci_raw(dev, in, out);
 952         sci_close(dev);
 953         if (ACPI_FAILURE(status)) {
 954                 pr_err("ACPI call to get USB Rapid Charge failed\n");
 955                 return -EIO;
 956         }
 957
 958         if (out[0] == TOS_NOT_SUPPORTED)
 959                 return -ENODEV;
 960
 961         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 962                 return -EIO;
 963
 964         *state = out[2];
 965
 966         return 0;
 967 }
 968
 969 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 970                                         u32 state)
 971 {
 972         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 973         u32 out[TCI_WORDS];
 974         acpi_status status;
 975
 976         if (!sci_open(dev))
 977                 return -EIO;
 978
 979         in[2] = state;
 980         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 981         status = tci_raw(dev, in, out);
 982         sci_close(dev);
 983         if (ACPI_FAILURE(status)) {
 984                 pr_err("ACPI call to set USB Rapid Charge failed\n");
 985                 return -EIO;
 986         }
 987
 988         if (out[0] == TOS_NOT_SUPPORTED)
 989                 return -ENODEV;
 990
 991         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 992 }
 993
 994 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 995 {
 996         u32 result;
 997
 998         if (!sci_open(dev))
 999                 return -EIO;
1000
1001         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002         sci_close(dev);
1003         if (result == TOS_FAILURE)
1004                 pr_err("ACPI call to get Sleep and Music failed\n");
1005         else if (result == TOS_NOT_SUPPORTED)
1006                 return -ENODEV;
1007
1008         return result == TOS_SUCCESS ? 0 : -EIO;
1009 }
1010
1011 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012 {
1013         u32 result;
1014
1015         if (!sci_open(dev))
1016                 return -EIO;
1017
1018         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019         sci_close(dev);
1020         if (result == TOS_FAILURE)
1021                 pr_err("ACPI call to set Sleep and Music failed\n");
1022         else if (result == TOS_NOT_SUPPORTED)
1023                 return -ENODEV;
1024
1025         return result == TOS_SUCCESS ? 0 : -EIO;
1026 }
1027
1028 /* Keyboard function keys */
1029 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030 {
1031         u32 result;
1032
1033         if (!sci_open(dev))
1034                 return -EIO;
1035
1036         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037         sci_close(dev);
1038         if (result == TOS_FAILURE)
1039                 pr_err("ACPI call to get KBD function keys failed\n");
1040         else if (result == TOS_NOT_SUPPORTED)
1041                 return -ENODEV;
1042
1043         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044 }
1045
1046 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047 {
1048         u32 result;
1049
1050         if (!sci_open(dev))
1051                 return -EIO;
1052
1053         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054         sci_close(dev);
1055         if (result == TOS_FAILURE)
1056                 pr_err("ACPI call to set KBD function keys failed\n");
1057         else if (result == TOS_NOT_SUPPORTED)
1058                 return -ENODEV;
1059
1060         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061 }
1062
1063 /* Panel Power ON */
1064 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065 {
1066         u32 result;
1067
1068         if (!sci_open(dev))
1069                 return -EIO;
1070
1071         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072         sci_close(dev);
1073         if (result == TOS_FAILURE)
1074                 pr_err("ACPI call to get Panel Power ON failed\n");
1075         else if (result == TOS_NOT_SUPPORTED)
1076                 return -ENODEV;
1077
1078         return result == TOS_SUCCESS ? 0 : -EIO;
1079 }
1080
1081 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082 {
1083         u32 result;
1084
1085         if (!sci_open(dev))
1086                 return -EIO;
1087
1088         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089         sci_close(dev);
1090         if (result == TOS_FAILURE)
1091                 pr_err("ACPI call to set Panel Power ON failed\n");
1092         else if (result == TOS_NOT_SUPPORTED)
1093                 return -ENODEV;
1094
1095         return result == TOS_SUCCESS ? 0 : -EIO;
1096 }
1097
1098 /* USB Three */
1099 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100 {
1101         u32 result;
1102
1103         if (!sci_open(dev))
1104                 return -EIO;
1105
1106         result = sci_read(dev, SCI_USB_THREE, state);
1107         sci_close(dev);
1108         if (result == TOS_FAILURE)
1109                 pr_err("ACPI call to get USB 3 failed\n");
1110         else if (result == TOS_NOT_SUPPORTED)
1111                 return -ENODEV;
1112
1113         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114 }
1115
1116 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117 {
1118         u32 result;
1119
1120         if (!sci_open(dev))
1121                 return -EIO;
1122
1123         result = sci_write(dev, SCI_USB_THREE, state);
1124         sci_close(dev);
1125         if (result == TOS_FAILURE)
1126                 pr_err("ACPI call to set USB 3 failed\n");
1127         else if (result == TOS_NOT_SUPPORTED)
1128                 return -ENODEV;
1129
1130         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131 }
1132
1133 /* Hotkey Event type */
1134 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135                                          u32 *type)
1136 {
1137         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138         u32 out[TCI_WORDS];
1139         acpi_status status;
1140
1141         status = tci_raw(dev, in, out);
1142         if (ACPI_FAILURE(status)) {
1143                 pr_err("ACPI call to get System type failed\n");
1144                 return -EIO;
1145         }
1146
1147         if (out[0] == TOS_NOT_SUPPORTED)
1148                 return -ENODEV;
1149
1150         if (out[0] != TOS_SUCCESS)
1151                 return -EIO;
1152
1153         *type = out[3];
1154
1155         return 0;
1156 }
1157
1158 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1159 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160 {
1161         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162         u32 out[TCI_WORDS];
1163         acpi_status status;
1164
1165         in[3] = HCI_WIRELESS_STATUS;
1166         status = tci_raw(dev, in, out);
1167
1168         if (ACPI_FAILURE(status)) {
1169                 pr_err("ACPI call to get Wireless status failed\n");
1170                 return -EIO;
1171         }
1172
1173         if (out[0] == TOS_NOT_SUPPORTED)
1174                 return -ENODEV;
1175
1176         if (out[0] != TOS_SUCCESS)
1177                 return -EIO;
1178
1179         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181         return 0;
1182 }
1183
1184 /* WWAN */
1185 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186 {
1187         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188         u32 out[TCI_WORDS];
1189         acpi_status status;
1190
1191         dev->wwan_supported = 0;
1192
1193         /*
1194          * WWAN support can be queried by setting the in[3] value to
1195          * HCI_WIRELESS_WWAN (0x03).
1196          *
1197          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199          *
1200          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201          * or TOS_NOT_SUPPORTED (0x8000).
1202          */
1203         in[3] = HCI_WIRELESS_WWAN;
1204         status = tci_raw(dev, in, out);
1205         if (ACPI_FAILURE(status)) {
1206                 pr_err("ACPI call to get WWAN status failed\n");
1207                 return;
1208         }
1209
1210         if (out[0] != TOS_SUCCESS)
1211                 return;
1212
1213         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214 }
1215
1216 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217 {
1218         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219         u32 out[TCI_WORDS];
1220         acpi_status status;
1221
1222         in[3] = HCI_WIRELESS_WWAN_STATUS;
1223         status = tci_raw(dev, in, out);
1224         if (ACPI_FAILURE(status)) {
1225                 pr_err("ACPI call to set WWAN status failed\n");
1226                 return -EIO;
1227         }
1228
1229         if (out[0] == TOS_NOT_SUPPORTED)
1230                 return -ENODEV;
1231
1232         if (out[0] != TOS_SUCCESS)
1233                 return -EIO;
1234
1235         /*
1236          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237          * (de)activate the device, but some others need the
1238          * HCI_WIRELESS_WWAN_POWER call as well.
1239          */
1240         in[3] = HCI_WIRELESS_WWAN_POWER;
1241         status = tci_raw(dev, in, out);
1242         if (ACPI_FAILURE(status)) {
1243                 pr_err("ACPI call to set WWAN power failed\n");
1244                 return -EIO;
1245         }
1246
1247         if (out[0] == TOS_NOT_SUPPORTED)
1248                 return -ENODEV;
1249
1250         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251 }
1252
1253 /* Cooling Method */
1254 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255 {
1256         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257         u32 out[TCI_WORDS];
1258         acpi_status status;
1259
1260         dev->cooling_method_supported = 0;
1261         dev->max_cooling_method = 0;
1262
1263         status = tci_raw(dev, in, out);
1264         if (ACPI_FAILURE(status)) {
1265                 pr_err("ACPI call to get Cooling Method failed\n");
1266                 return;
1267         }
1268
1269         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270                 return;
1271
1272         dev->cooling_method_supported = 1;
1273         dev->max_cooling_method = out[3];
1274 }
1275
1276 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277 {
1278         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280         if (result == TOS_FAILURE)
1281                 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283         if (result == TOS_NOT_SUPPORTED)
1284                 return -ENODEV;
1285
1286         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287 }
1288
1289 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290 {
1291         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293         if (result == TOS_FAILURE)
1294                 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296         if (result == TOS_NOT_SUPPORTED)
1297                 return -ENODEV;
1298
1299         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300 }
1301
1302 /* Transflective Backlight */
1303 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1304 {
1305         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1306
1307         if (result == TOS_FAILURE)
1308                 pr_err("ACPI call to get Transflective Backlight failed\n");
1309         else if (result == TOS_NOT_SUPPORTED)
1310                 return -ENODEV;
1311
1312         return result == TOS_SUCCESS ? 0 : -EIO;
1313 }
1314
1315 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1316 {
1317         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1318
1319         if (result == TOS_FAILURE)
1320                 pr_err("ACPI call to set Transflective Backlight failed\n");
1321         else if (result == TOS_NOT_SUPPORTED)
1322                 return -ENODEV;
1323
1324         return result == TOS_SUCCESS ? 0 : -EIO;
1325 }
1326
1327 static struct proc_dir_entry *toshiba_proc_dir;
1328
1329 /* LCD Brightness */
1330 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1331 {
1332         int brightness = 0;
1333         u32 result;
1334         u32 value;
1335
1336         if (dev->tr_backlight_supported) {
1337                 int ret = get_tr_backlight_status(dev, &value);
1338
1339                 if (ret)
1340                         return ret;
1341                 if (value)
1342                         return 0;
1343                 brightness++;
1344         }
1345
1346         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1347         if (result == TOS_FAILURE)
1348                 pr_err("ACPI call to get LCD Brightness failed\n");
1349         else if (result == TOS_NOT_SUPPORTED)
1350                 return -ENODEV;
1351
1352         return result == TOS_SUCCESS ?
1353                         brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1354                         -EIO;
1355 }
1356
1357 static int get_lcd_brightness(struct backlight_device *bd)
1358 {
1359         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1360
1361         return __get_lcd_brightness(dev);
1362 }
1363
1364 static int lcd_proc_show(struct seq_file *m, void *v)
1365 {
1366         struct toshiba_acpi_dev *dev = m->private;
1367         int levels;
1368         int value;
1369
1370         if (!dev->backlight_dev)
1371                 return -ENODEV;
1372
1373         levels = dev->backlight_dev->props.max_brightness + 1;
1374         value = get_lcd_brightness(dev->backlight_dev);
1375         if (value < 0) {
1376                 pr_err("Error reading LCD brightness\n");
1377                 return value;
1378         }
1379
1380         seq_printf(m, "brightness:              %d\n", value);
1381         seq_printf(m, "brightness_levels:       %d\n", levels);
1382
1383         return 0;
1384 }
1385
1386 static int lcd_proc_open(struct inode *inode, struct file *file)
1387 {
1388         return single_open(file, lcd_proc_show, PDE_DATA(inode));
1389 }
1390
1391 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1392 {
1393         u32 result;
1394
1395         if (dev->tr_backlight_supported) {
1396                 int ret = set_tr_backlight_status(dev, !value);
1397
1398                 if (ret)
1399                         return ret;
1400                 if (value)
1401                         value--;
1402         }
1403
1404         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1405         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1406         if (result == TOS_FAILURE)
1407                 pr_err("ACPI call to set LCD Brightness failed\n");
1408         else if (result == TOS_NOT_SUPPORTED)
1409                 return -ENODEV;
1410
1411         return result == TOS_SUCCESS ? 0 : -EIO;
1412 }
1413
1414 static int set_lcd_status(struct backlight_device *bd)
1415 {
1416         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418         return set_lcd_brightness(dev, bd->props.brightness);
1419 }
1420
1421 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1422                               size_t count, loff_t *pos)
1423 {
1424         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1425         char cmd[42];
1426         size_t len;
1427         int levels;
1428         int value;
1429
1430         len = min(count, sizeof(cmd) - 1);
1431         if (copy_from_user(cmd, buf, len))
1432                 return -EFAULT;
1433         cmd[len] = '\0';
1434
1435         levels = dev->backlight_dev->props.max_brightness + 1;
1436         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1437             value < 0 && value > levels)
1438                 return -EINVAL;
1439
1440         if (set_lcd_brightness(dev, value))
1441                 return -EIO;
1442
1443         return count;
1444 }
1445
1446 static const struct file_operations lcd_proc_fops = {
1447         .owner          = THIS_MODULE,
1448         .open           = lcd_proc_open,
1449         .read           = seq_read,
1450         .llseek         = seq_lseek,
1451         .release        = single_release,
1452         .write          = lcd_proc_write,
1453 };
1454
1455 /* Video-Out */
1456 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1457 {
1458         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1459
1460         if (result == TOS_FAILURE)
1461                 pr_err("ACPI call to get Video-Out failed\n");
1462         else if (result == TOS_NOT_SUPPORTED)
1463                 return -ENODEV;
1464
1465         return result == TOS_SUCCESS ? 0 : -EIO;
1466 }
1467
1468 static int video_proc_show(struct seq_file *m, void *v)
1469 {
1470         struct toshiba_acpi_dev *dev = m->private;
1471         int is_lcd, is_crt, is_tv;
1472         u32 value;
1473
1474         if (get_video_status(dev, &value))
1475                 return -EIO;
1476
1477         is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1478         is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1479         is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1480
1481         seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1482         seq_printf(m, "crt_out:                 %d\n", is_crt);
1483         seq_printf(m, "tv_out:                  %d\n", is_tv);
1484
1485         return 0;
1486 }
1487
1488 static int video_proc_open(struct inode *inode, struct file *file)
1489 {
1490         return single_open(file, video_proc_show, PDE_DATA(inode));
1491 }
1492
1493 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1494                                 size_t count, loff_t *pos)
1495 {
1496         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1497         char *buffer;
1498         char *cmd;
1499         int lcd_out, crt_out, tv_out;
1500         int remain = count;
1501         int value;
1502         int ret;
1503         u32 video_out;
1504
1505         cmd = memdup_user_nul(buf, count);
1506         if (IS_ERR(cmd))
1507                 return PTR_ERR(cmd);
1508
1509         buffer = cmd;
1510
1511         /*
1512          * Scan expression.  Multiple expressions may be delimited with ;
1513          * NOTE: To keep scanning simple, invalid fields are ignored.
1514          */
1515         while (remain) {
1516                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1517                         lcd_out = value & 1;
1518                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1519                         crt_out = value & 1;
1520                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1521                         tv_out = value & 1;
1522                 /* Advance to one character past the next ; */
1523                 do {
1524                         ++buffer;
1525                         --remain;
1526                 } while (remain && *(buffer - 1) != ';');
1527         }
1528
1529         kfree(cmd);
1530
1531         lcd_out = crt_out = tv_out = -1;
1532         ret = get_video_status(dev, &video_out);
1533         if (!ret) {
1534                 unsigned int new_video_out = video_out;
1535
1536                 if (lcd_out != -1)
1537                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1538                 if (crt_out != -1)
1539                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1540                 if (tv_out != -1)
1541                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1542                 /*
1543                  * To avoid unnecessary video disruption, only write the new
1544                  * video setting if something changed.
1545                  */
1546                 if (new_video_out != video_out)
1547                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1548         }
1549
1550         return ret ? -EIO : count;
1551 }
1552
1553 static const struct file_operations video_proc_fops = {
1554         .owner          = THIS_MODULE,
1555         .open           = video_proc_open,
1556         .read           = seq_read,
1557         .llseek         = seq_lseek,
1558         .release        = single_release,
1559         .write          = video_proc_write,
1560 };
1561
1562 /* Fan status */
1563 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1564 {
1565         u32 result = hci_read(dev, HCI_FAN, status);
1566
1567         if (result == TOS_FAILURE)
1568                 pr_err("ACPI call to get Fan status failed\n");
1569         else if (result == TOS_NOT_SUPPORTED)
1570                 return -ENODEV;
1571
1572         return result == TOS_SUCCESS ? 0 : -EIO;
1573 }
1574
1575 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1576 {
1577         u32 result = hci_write(dev, HCI_FAN, status);
1578
1579         if (result == TOS_FAILURE)
1580                 pr_err("ACPI call to set Fan status failed\n");
1581         else if (result == TOS_NOT_SUPPORTED)
1582                 return -ENODEV;
1583
1584         return result == TOS_SUCCESS ? 0 : -EIO;
1585 }
1586
1587 static int fan_proc_show(struct seq_file *m, void *v)
1588 {
1589         struct toshiba_acpi_dev *dev = m->private;
1590         u32 value;
1591
1592         if (get_fan_status(dev, &value))
1593                 return -EIO;
1594
1595         seq_printf(m, "running:                 %d\n", (value > 0));
1596         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1597
1598         return 0;
1599 }
1600
1601 static int fan_proc_open(struct inode *inode, struct file *file)
1602 {
1603         return single_open(file, fan_proc_show, PDE_DATA(inode));
1604 }
1605
1606 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1607                               size_t count, loff_t *pos)
1608 {
1609         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1610         char cmd[42];
1611         size_t len;
1612         int value;
1613
1614         len = min(count, sizeof(cmd) - 1);
1615         if (copy_from_user(cmd, buf, len))
1616                 return -EFAULT;
1617         cmd[len] = '\0';
1618
1619         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1620             value != 0 && value != 1)
1621                 return -EINVAL;
1622
1623         if (set_fan_status(dev, value))
1624                 return -EIO;
1625
1626         dev->force_fan = value;
1627
1628         return count;
1629 }
1630
1631 static const struct file_operations fan_proc_fops = {
1632         .owner          = THIS_MODULE,
1633         .open           = fan_proc_open,
1634         .read           = seq_read,
1635         .llseek         = seq_lseek,
1636         .release        = single_release,
1637         .write          = fan_proc_write,
1638 };
1639
1640 static int keys_proc_show(struct seq_file *m, void *v)
1641 {
1642         struct toshiba_acpi_dev *dev = m->private;
1643
1644         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1645         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1646
1647         return 0;
1648 }
1649
1650 static int keys_proc_open(struct inode *inode, struct file *file)
1651 {
1652         return single_open(file, keys_proc_show, PDE_DATA(inode));
1653 }
1654
1655 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1656                                size_t count, loff_t *pos)
1657 {
1658         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1659         char cmd[42];
1660         size_t len;
1661         int value;
1662
1663         len = min(count, sizeof(cmd) - 1);
1664         if (copy_from_user(cmd, buf, len))
1665                 return -EFAULT;
1666         cmd[len] = '\0';
1667
1668         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1669                 dev->key_event_valid = 0;
1670         else
1671                 return -EINVAL;
1672
1673         return count;
1674 }
1675
1676 static const struct file_operations keys_proc_fops = {
1677         .owner          = THIS_MODULE,
1678         .open           = keys_proc_open,
1679         .read           = seq_read,
1680         .llseek         = seq_lseek,
1681         .release        = single_release,
1682         .write          = keys_proc_write,
1683 };
1684
1685 static int version_proc_show(struct seq_file *m, void *v)
1686 {
1687         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1688         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1689         return 0;
1690 }
1691
1692 static int version_proc_open(struct inode *inode, struct file *file)
1693 {
1694         return single_open(file, version_proc_show, PDE_DATA(inode));
1695 }
1696
1697 static const struct file_operations version_proc_fops = {
1698         .owner          = THIS_MODULE,
1699         .open           = version_proc_open,
1700         .read           = seq_read,
1701         .llseek         = seq_lseek,
1702         .release        = single_release,
1703 };
1704
1705 /*
1706  * Proc and module init
1707  */
1708
1709 #define PROC_TOSHIBA            "toshiba"
1710
1711 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1712 {
1713         if (dev->backlight_dev)
1714                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1715                                  &lcd_proc_fops, dev);
1716         if (dev->video_supported)
1717                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1718                                  &video_proc_fops, dev);
1719         if (dev->fan_supported)
1720                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721                                  &fan_proc_fops, dev);
1722         if (dev->hotkey_dev)
1723                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724                                  &keys_proc_fops, dev);
1725         proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1726                          &version_proc_fops, dev);
1727 }
1728
1729 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1730 {
1731         if (dev->backlight_dev)
1732                 remove_proc_entry("lcd", toshiba_proc_dir);
1733         if (dev->video_supported)
1734                 remove_proc_entry("video", toshiba_proc_dir);
1735         if (dev->fan_supported)
1736                 remove_proc_entry("fan", toshiba_proc_dir);
1737         if (dev->hotkey_dev)
1738                 remove_proc_entry("keys", toshiba_proc_dir);
1739         remove_proc_entry("version", toshiba_proc_dir);
1740 }
1741
1742 static const struct backlight_ops toshiba_backlight_data = {
1743         .options = BL_CORE_SUSPENDRESUME,
1744         .get_brightness = get_lcd_brightness,
1745         .update_status  = set_lcd_status,
1746 };
1747
1748 /* Keyboard backlight work */
1749 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1750
1751 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1752
1753 /*
1754  * Sysfs files
1755  */
1756 static ssize_t version_show(struct device *dev,
1757                             struct device_attribute *attr, char *buf)
1758 {
1759         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1760 }
1761 static DEVICE_ATTR_RO(version);
1762
1763 static ssize_t fan_store(struct device *dev,
1764                          struct device_attribute *attr,
1765                          const char *buf, size_t count)
1766 {
1767         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1768         int state;
1769         int ret;
1770
1771         ret = kstrtoint(buf, 0, &state);
1772         if (ret)
1773                 return ret;
1774
1775         if (state != 0 && state != 1)
1776                 return -EINVAL;
1777
1778         ret = set_fan_status(toshiba, state);
1779         if (ret)
1780                 return ret;
1781
1782         return count;
1783 }
1784
1785 static ssize_t fan_show(struct device *dev,
1786                         struct device_attribute *attr, char *buf)
1787 {
1788         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1789         u32 value;
1790         int ret;
1791
1792         ret = get_fan_status(toshiba, &value);
1793         if (ret)
1794                 return ret;
1795
1796         return sprintf(buf, "%d\n", value);
1797 }
1798 static DEVICE_ATTR_RW(fan);
1799
1800 static ssize_t kbd_backlight_mode_store(struct device *dev,
1801                                         struct device_attribute *attr,
1802                                         const char *buf, size_t count)
1803 {
1804         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1805         int mode;
1806         int ret;
1807
1808
1809         ret = kstrtoint(buf, 0, &mode);
1810         if (ret)
1811                 return ret;
1812
1813         /* Check for supported modes depending on keyboard backlight type */
1814         if (toshiba->kbd_type == 1) {
1815                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1816                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1817                         return -EINVAL;
1818         } else if (toshiba->kbd_type == 2) {
1819                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1820                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1821                     mode != SCI_KBD_MODE_OFF)
1822                         return -EINVAL;
1823         }
1824
1825         /*
1826          * Set the Keyboard Backlight Mode where:
1827          *      Auto - KBD backlight turns off automatically in given time
1828          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1829          *      ON   - KBD backlight is always on
1830          *      OFF  - KBD backlight is always off
1831          */
1832
1833         /* Only make a change if the actual mode has changed */
1834         if (toshiba->kbd_mode != mode) {
1835                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1836                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1837
1838                 /* OR the "base time" to the actual method format */
1839                 if (toshiba->kbd_type == 1) {
1840                         /* Type 1 requires the current mode */
1841                         time |= toshiba->kbd_mode;
1842                 } else if (toshiba->kbd_type == 2) {
1843                         /* Type 2 requires the desired mode */
1844                         time |= mode;
1845                 }
1846
1847                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1848                 if (ret)
1849                         return ret;
1850
1851                 toshiba->kbd_mode = mode;
1852
1853                 /*
1854                  * Some laptop models with the second generation backlit
1855                  * keyboard (type 2) do not generate the keyboard backlight
1856                  * changed event (0x92), and thus, the driver will never update
1857                  * the sysfs entries.
1858                  *
1859                  * The event is generated right when changing the keyboard
1860                  * backlight mode and the *notify function will set the
1861                  * kbd_event_generated to true.
1862                  *
1863                  * In case the event is not generated, schedule the keyboard
1864                  * backlight work to update the sysfs entries and emulate the
1865                  * event via genetlink.
1866                  */
1867                 if (toshiba->kbd_type == 2 &&
1868                     !toshiba_acpi->kbd_event_generated)
1869                         schedule_work(&kbd_bl_work);
1870         }
1871
1872         return count;
1873 }
1874
1875 static ssize_t kbd_backlight_mode_show(struct device *dev,
1876                                        struct device_attribute *attr,
1877                                        char *buf)
1878 {
1879         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880         u32 time;
1881
1882         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1883                 return -EIO;
1884
1885         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1886 }
1887 static DEVICE_ATTR_RW(kbd_backlight_mode);
1888
1889 static ssize_t kbd_type_show(struct device *dev,
1890                              struct device_attribute *attr, char *buf)
1891 {
1892         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1893
1894         return sprintf(buf, "%d\n", toshiba->kbd_type);
1895 }
1896 static DEVICE_ATTR_RO(kbd_type);
1897
1898 static ssize_t available_kbd_modes_show(struct device *dev,
1899                                         struct device_attribute *attr,
1900                                         char *buf)
1901 {
1902         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1903
1904         if (toshiba->kbd_type == 1)
1905                 return sprintf(buf, "0x%x 0x%x\n",
1906                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1907
1908         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1909                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1910 }
1911 static DEVICE_ATTR_RO(available_kbd_modes);
1912
1913 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1914                                            struct device_attribute *attr,
1915                                            const char *buf, size_t count)
1916 {
1917         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918         int time;
1919         int ret;
1920
1921         ret = kstrtoint(buf, 0, &time);
1922         if (ret)
1923                 return ret;
1924
1925         /* Check for supported values depending on kbd_type */
1926         if (toshiba->kbd_type == 1) {
1927                 if (time < 0 || time > 60)
1928                         return -EINVAL;
1929         } else if (toshiba->kbd_type == 2) {
1930                 if (time < 1 || time > 60)
1931                         return -EINVAL;
1932         }
1933
1934         /* Set the Keyboard Backlight Timeout */
1935
1936         /* Only make a change if the actual timeout has changed */
1937         if (toshiba->kbd_time != time) {
1938                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1939                 time = time << HCI_MISC_SHIFT;
1940                 /* OR the "base time" to the actual method format */
1941                 if (toshiba->kbd_type == 1)
1942                         time |= SCI_KBD_MODE_FNZ;
1943                 else if (toshiba->kbd_type == 2)
1944                         time |= SCI_KBD_MODE_AUTO;
1945
1946                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1947                 if (ret)
1948                         return ret;
1949
1950                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1951         }
1952
1953         return count;
1954 }
1955
1956 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1957                                           struct device_attribute *attr,
1958                                           char *buf)
1959 {
1960         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961         u32 time;
1962
1963         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1964                 return -EIO;
1965
1966         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1967 }
1968 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1969
1970 static ssize_t touchpad_store(struct device *dev,
1971                               struct device_attribute *attr,
1972                               const char *buf, size_t count)
1973 {
1974         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1975         int state;
1976         int ret;
1977
1978         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1979         ret = kstrtoint(buf, 0, &state);
1980         if (ret)
1981                 return ret;
1982         if (state != 0 && state != 1)
1983                 return -EINVAL;
1984
1985         ret = toshiba_touchpad_set(toshiba, state);
1986         if (ret)
1987                 return ret;
1988
1989         return count;
1990 }
1991
1992 static ssize_t touchpad_show(struct device *dev,
1993                              struct device_attribute *attr, char *buf)
1994 {
1995         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1996         u32 state;
1997         int ret;
1998
1999         ret = toshiba_touchpad_get(toshiba, &state);
2000         if (ret < 0)
2001                 return ret;
2002
2003         return sprintf(buf, "%i\n", state);
2004 }
2005 static DEVICE_ATTR_RW(touchpad);
2006
2007 static ssize_t usb_sleep_charge_show(struct device *dev,
2008                                      struct device_attribute *attr, char *buf)
2009 {
2010         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2011         u32 mode;
2012         int ret;
2013
2014         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2015         if (ret < 0)
2016                 return ret;
2017
2018         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2019 }
2020
2021 static ssize_t usb_sleep_charge_store(struct device *dev,
2022                                       struct device_attribute *attr,
2023                                       const char *buf, size_t count)
2024 {
2025         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2026         int state;
2027         u32 mode;
2028         int ret;
2029
2030         ret = kstrtoint(buf, 0, &state);
2031         if (ret)
2032                 return ret;
2033         /*
2034          * Check for supported values, where:
2035          * 0 - Disabled
2036          * 1 - Alternate (Non USB conformant devices that require more power)
2037          * 2 - Auto (USB conformant devices)
2038          * 3 - Typical
2039          */
2040         if (state != 0 && state != 1 && state != 2 && state != 3)
2041                 return -EINVAL;
2042
2043         /* Set the USB charging mode to internal value */
2044         mode = toshiba->usbsc_mode_base;
2045         if (state == 0)
2046                 mode |= SCI_USB_CHARGE_DISABLED;
2047         else if (state == 1)
2048                 mode |= SCI_USB_CHARGE_ALTERNATE;
2049         else if (state == 2)
2050                 mode |= SCI_USB_CHARGE_AUTO;
2051         else if (state == 3)
2052                 mode |= SCI_USB_CHARGE_TYPICAL;
2053
2054         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2055         if (ret)
2056                 return ret;
2057
2058         return count;
2059 }
2060 static DEVICE_ATTR_RW(usb_sleep_charge);
2061
2062 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2063                                                struct device_attribute *attr,
2064                                                char *buf)
2065 {
2066         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067         int bat_lvl, status;
2068         u32 state;
2069         int ret;
2070         int tmp;
2071
2072         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2073         if (ret < 0)
2074                 return ret;
2075
2076         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2077         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2078         status = (tmp == 0x4) ? 1 : 0;
2079         /* Determine the battery level set */
2080         bat_lvl = state >> HCI_MISC_SHIFT;
2081
2082         return sprintf(buf, "%d %d\n", status, bat_lvl);
2083 }
2084
2085 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2086                                                 struct device_attribute *attr,
2087                                                 const char *buf, size_t count)
2088 {
2089         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090         u32 status;
2091         int value;
2092         int ret;
2093         int tmp;
2094
2095         ret = kstrtoint(buf, 0, &value);
2096         if (ret)
2097                 return ret;
2098
2099         /*
2100          * Set the status of the function:
2101          * 0 - Disabled
2102          * 1-100 - Enabled
2103          */
2104         if (value < 0 || value > 100)
2105                 return -EINVAL;
2106
2107         if (value == 0) {
2108                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2109                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2110         } else {
2111                 tmp = value << HCI_MISC_SHIFT;
2112                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2113         }
2114         ret = toshiba_sleep_functions_status_set(toshiba, status);
2115         if (ret < 0)
2116                 return ret;
2117
2118         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2119
2120         return count;
2121 }
2122 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2123
2124 static ssize_t usb_rapid_charge_show(struct device *dev,
2125                                      struct device_attribute *attr, char *buf)
2126 {
2127         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2128         u32 state;
2129         int ret;
2130
2131         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2132         if (ret < 0)
2133                 return ret;
2134
2135         return sprintf(buf, "%d\n", state);
2136 }
2137
2138 static ssize_t usb_rapid_charge_store(struct device *dev,
2139                                       struct device_attribute *attr,
2140                                       const char *buf, size_t count)
2141 {
2142         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2143         int state;
2144         int ret;
2145
2146         ret = kstrtoint(buf, 0, &state);
2147         if (ret)
2148                 return ret;
2149         if (state != 0 && state != 1)
2150                 return -EINVAL;
2151
2152         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2153         if (ret)
2154                 return ret;
2155
2156         return count;
2157 }
2158 static DEVICE_ATTR_RW(usb_rapid_charge);
2159
2160 static ssize_t usb_sleep_music_show(struct device *dev,
2161                                     struct device_attribute *attr, char *buf)
2162 {
2163         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2164         u32 state;
2165         int ret;
2166
2167         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2168         if (ret < 0)
2169                 return ret;
2170
2171         return sprintf(buf, "%d\n", state);
2172 }
2173
2174 static ssize_t usb_sleep_music_store(struct device *dev,
2175                                      struct device_attribute *attr,
2176                                      const char *buf, size_t count)
2177 {
2178         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2179         int state;
2180         int ret;
2181
2182         ret = kstrtoint(buf, 0, &state);
2183         if (ret)
2184                 return ret;
2185         if (state != 0 && state != 1)
2186                 return -EINVAL;
2187
2188         ret = toshiba_usb_sleep_music_set(toshiba, state);
2189         if (ret)
2190                 return ret;
2191
2192         return count;
2193 }
2194 static DEVICE_ATTR_RW(usb_sleep_music);
2195
2196 static ssize_t kbd_function_keys_show(struct device *dev,
2197                                       struct device_attribute *attr, char *buf)
2198 {
2199         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2200         int mode;
2201         int ret;
2202
2203         ret = toshiba_function_keys_get(toshiba, &mode);
2204         if (ret < 0)
2205                 return ret;
2206
2207         return sprintf(buf, "%d\n", mode);
2208 }
2209
2210 static ssize_t kbd_function_keys_store(struct device *dev,
2211                                        struct device_attribute *attr,
2212                                        const char *buf, size_t count)
2213 {
2214         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2215         int mode;
2216         int ret;
2217
2218         ret = kstrtoint(buf, 0, &mode);
2219         if (ret)
2220                 return ret;
2221         /*
2222          * Check for the function keys mode where:
2223          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2224          * 1 - Special functions (Opposite of the above setting)
2225          */
2226         if (mode != 0 && mode != 1)
2227                 return -EINVAL;
2228
2229         ret = toshiba_function_keys_set(toshiba, mode);
2230         if (ret)
2231                 return ret;
2232
2233         pr_info("Reboot for changes to KBD Function Keys to take effect");
2234
2235         return count;
2236 }
2237 static DEVICE_ATTR_RW(kbd_function_keys);
2238
2239 static ssize_t panel_power_on_show(struct device *dev,
2240                                    struct device_attribute *attr, char *buf)
2241 {
2242         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243         u32 state;
2244         int ret;
2245
2246         ret = toshiba_panel_power_on_get(toshiba, &state);
2247         if (ret < 0)
2248                 return ret;
2249
2250         return sprintf(buf, "%d\n", state);
2251 }
2252
2253 static ssize_t panel_power_on_store(struct device *dev,
2254                                     struct device_attribute *attr,
2255                                     const char *buf, size_t count)
2256 {
2257         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258         int state;
2259         int ret;
2260
2261         ret = kstrtoint(buf, 0, &state);
2262         if (ret)
2263                 return ret;
2264         if (state != 0 && state != 1)
2265                 return -EINVAL;
2266
2267         ret = toshiba_panel_power_on_set(toshiba, state);
2268         if (ret)
2269                 return ret;
2270
2271         pr_info("Reboot for changes to Panel Power ON to take effect");
2272
2273         return count;
2274 }
2275 static DEVICE_ATTR_RW(panel_power_on);
2276
2277 static ssize_t usb_three_show(struct device *dev,
2278                               struct device_attribute *attr, char *buf)
2279 {
2280         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2281         u32 state;
2282         int ret;
2283
2284         ret = toshiba_usb_three_get(toshiba, &state);
2285         if (ret < 0)
2286                 return ret;
2287
2288         return sprintf(buf, "%d\n", state);
2289 }
2290
2291 static ssize_t usb_three_store(struct device *dev,
2292                                struct device_attribute *attr,
2293                                const char *buf, size_t count)
2294 {
2295         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2296         int state;
2297         int ret;
2298
2299         ret = kstrtoint(buf, 0, &state);
2300         if (ret)
2301                 return ret;
2302         /*
2303          * Check for USB 3 mode where:
2304          * 0 - Disabled (Acts like a USB 2 port, saving power)
2305          * 1 - Enabled
2306          */
2307         if (state != 0 && state != 1)
2308                 return -EINVAL;
2309
2310         ret = toshiba_usb_three_set(toshiba, state);
2311         if (ret)
2312                 return ret;
2313
2314         pr_info("Reboot for changes to USB 3 to take effect");
2315
2316         return count;
2317 }
2318 static DEVICE_ATTR_RW(usb_three);
2319
2320 static ssize_t cooling_method_show(struct device *dev,
2321                                    struct device_attribute *attr, char *buf)
2322 {
2323         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2324         int state;
2325         int ret;
2326
2327         ret = toshiba_cooling_method_get(toshiba, &state);
2328         if (ret < 0)
2329                 return ret;
2330
2331         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2332 }
2333
2334 static ssize_t cooling_method_store(struct device *dev,
2335                                     struct device_attribute *attr,
2336                                     const char *buf, size_t count)
2337 {
2338         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2339         int state;
2340         int ret;
2341
2342         ret = kstrtoint(buf, 0, &state);
2343         if (ret)
2344                 return ret;
2345
2346         /*
2347          * Check for supported values
2348          * Depending on the laptop model, some only support these two:
2349          * 0 - Maximum Performance
2350          * 1 - Battery Optimized
2351          *
2352          * While some others support all three methods:
2353          * 0 - Maximum Performance
2354          * 1 - Performance
2355          * 2 - Battery Optimized
2356          */
2357         if (state < 0 || state > toshiba->max_cooling_method)
2358                 return -EINVAL;
2359
2360         ret = toshiba_cooling_method_set(toshiba, state);
2361         if (ret)
2362                 return ret;
2363
2364         return count;
2365 }
2366 static DEVICE_ATTR_RW(cooling_method);
2367
2368 static struct attribute *toshiba_attributes[] = {
2369         &dev_attr_version.attr,
2370         &dev_attr_fan.attr,
2371         &dev_attr_kbd_backlight_mode.attr,
2372         &dev_attr_kbd_type.attr,
2373         &dev_attr_available_kbd_modes.attr,
2374         &dev_attr_kbd_backlight_timeout.attr,
2375         &dev_attr_touchpad.attr,
2376         &dev_attr_usb_sleep_charge.attr,
2377         &dev_attr_sleep_functions_on_battery.attr,
2378         &dev_attr_usb_rapid_charge.attr,
2379         &dev_attr_usb_sleep_music.attr,
2380         &dev_attr_kbd_function_keys.attr,
2381         &dev_attr_panel_power_on.attr,
2382         &dev_attr_usb_three.attr,
2383         &dev_attr_cooling_method.attr,
2384         NULL,
2385 };
2386
2387 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2388                                         struct attribute *attr, int idx)
2389 {
2390         struct device *dev = container_of(kobj, struct device, kobj);
2391         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2392         bool exists = true;
2393
2394         if (attr == &dev_attr_fan.attr)
2395                 exists = (drv->fan_supported) ? true : false;
2396         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2397                 exists = (drv->kbd_illum_supported) ? true : false;
2398         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2399                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2400         else if (attr == &dev_attr_touchpad.attr)
2401                 exists = (drv->touchpad_supported) ? true : false;
2402         else if (attr == &dev_attr_usb_sleep_charge.attr)
2403                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2404         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2405                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2406         else if (attr == &dev_attr_usb_rapid_charge.attr)
2407                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2408         else if (attr == &dev_attr_usb_sleep_music.attr)
2409                 exists = (drv->usb_sleep_music_supported) ? true : false;
2410         else if (attr == &dev_attr_kbd_function_keys.attr)
2411                 exists = (drv->kbd_function_keys_supported) ? true : false;
2412         else if (attr == &dev_attr_panel_power_on.attr)
2413                 exists = (drv->panel_power_on_supported) ? true : false;
2414         else if (attr == &dev_attr_usb_three.attr)
2415                 exists = (drv->usb_three_supported) ? true : false;
2416         else if (attr == &dev_attr_cooling_method.attr)
2417                 exists = (drv->cooling_method_supported) ? true : false;
2418
2419         return exists ? attr->mode : 0;
2420 }
2421
2422 static struct attribute_group toshiba_attr_group = {
2423         .is_visible = toshiba_sysfs_is_visible,
2424         .attrs = toshiba_attributes,
2425 };
2426
2427 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2428 {
2429         struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2430
2431         /* Update the sysfs entries */
2432         if (sysfs_update_group(&acpi_dev->dev.kobj,
2433                                &toshiba_attr_group))
2434                 pr_err("Unable to update sysfs entries\n");
2435
2436         /* Emulate the keyboard backlight event */
2437         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2438                                         dev_name(&acpi_dev->dev),
2439                                         0x92, 0);
2440 }
2441
2442 /*
2443  * IIO device
2444  */
2445
2446 enum toshiba_iio_accel_chan {
2447         AXIS_X,
2448         AXIS_Y,
2449         AXIS_Z
2450 };
2451
2452 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2453 {
2454         u32 xyval, zval;
2455         int ret;
2456
2457         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2458         if (ret < 0)
2459                 return ret;
2460
2461         switch (chan) {
2462         case AXIS_X:
2463                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2464                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2465         case AXIS_Y:
2466                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2467                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2468                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2469         case AXIS_Z:
2470                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2471                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2472         }
2473
2474         return ret;
2475 }
2476
2477 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2478                                       struct iio_chan_spec const *chan,
2479                                       int *val, int *val2, long mask)
2480 {
2481         int ret;
2482
2483         switch (mask) {
2484         case IIO_CHAN_INFO_RAW:
2485                 ret = toshiba_iio_accel_get_axis(chan->channel);
2486                 if (ret == -EIO || ret == -ENODEV)
2487                         return ret;
2488
2489                 *val = ret;
2490
2491                 return IIO_VAL_INT;
2492         }
2493
2494         return -EINVAL;
2495 }
2496
2497 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2498         .type = IIO_ACCEL, \
2499         .modified = 1, \
2500         .channel = chan, \
2501         .channel2 = IIO_MOD_##axis, \
2502         .output = 1, \
2503         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2504 }
2505
2506 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2507         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2508         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2509         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2510 };
2511
2512 static const struct iio_info toshiba_iio_accel_info = {
2513         .driver_module = THIS_MODULE,
2514         .read_raw = &toshiba_iio_accel_read_raw,
2515 };
2516
2517 /*
2518  * Misc device
2519  */
2520 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2521 {
2522         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2523                               regs->edx, regs->esi, regs->edi };
2524         u32 out[TCI_WORDS];
2525         acpi_status status;
2526
2527         status = tci_raw(toshiba_acpi, in, out);
2528         if (ACPI_FAILURE(status)) {
2529                 pr_err("ACPI call to query SMM registers failed\n");
2530                 return -EIO;
2531         }
2532
2533         /* Fillout the SMM struct with the TCI call results */
2534         regs->eax = out[0];
2535         regs->ebx = out[1];
2536         regs->ecx = out[2];
2537         regs->edx = out[3];
2538         regs->esi = out[4];
2539         regs->edi = out[5];
2540
2541         return 0;
2542 }
2543
2544 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2545                                unsigned long arg)
2546 {
2547         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2548         SMMRegisters regs;
2549         int ret;
2550
2551         if (!argp)
2552                 return -EINVAL;
2553
2554         switch (cmd) {
2555         case TOSH_SMM:
2556                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2557                         return -EFAULT;
2558                 ret = toshiba_acpi_smm_bridge(&regs);
2559                 if (ret)
2560                         return ret;
2561                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2562                         return -EFAULT;
2563                 break;
2564         case TOSHIBA_ACPI_SCI:
2565                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2566                         return -EFAULT;
2567                 /* Ensure we are being called with a SCI_{GET, SET} register */
2568                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2569                         return -EINVAL;
2570                 if (!sci_open(toshiba_acpi))
2571                         return -EIO;
2572                 ret = toshiba_acpi_smm_bridge(&regs);
2573                 sci_close(toshiba_acpi);
2574                 if (ret)
2575                         return ret;
2576                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2577                         return -EFAULT;
2578                 break;
2579         default:
2580                 return -EINVAL;
2581         }
2582
2583         return 0;
2584 }
2585
2586 static const struct file_operations toshiba_acpi_fops = {
2587         .owner          = THIS_MODULE,
2588         .unlocked_ioctl = toshiba_acpi_ioctl,
2589         .llseek         = noop_llseek,
2590 };
2591
2592 /*
2593  * WWAN RFKill handlers
2594  */
2595 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2596 {
2597         struct toshiba_acpi_dev *dev = data;
2598         int ret;
2599
2600         ret = toshiba_wireless_status(dev);
2601         if (ret)
2602                 return ret;
2603
2604         if (!dev->killswitch)
2605                 return 0;
2606
2607         return toshiba_wwan_set(dev, !blocked);
2608 }
2609
2610 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2611 {
2612         struct toshiba_acpi_dev *dev = data;
2613
2614         if (toshiba_wireless_status(dev))
2615                 return;
2616
2617         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2618 }
2619
2620 static const struct rfkill_ops wwan_rfk_ops = {
2621         .set_block = toshiba_acpi_wwan_set_block,
2622         .poll = toshiba_acpi_wwan_poll,
2623 };
2624
2625 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2626 {
2627         int ret = toshiba_wireless_status(dev);
2628
2629         if (ret)
2630                 return ret;
2631
2632         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2633                                      &dev->acpi_dev->dev,
2634                                      RFKILL_TYPE_WWAN,
2635                                      &wwan_rfk_ops,
2636                                      dev);
2637         if (!dev->wwan_rfk) {
2638                 pr_err("Unable to allocate WWAN rfkill device\n");
2639                 return -ENOMEM;
2640         }
2641
2642         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2643
2644         ret = rfkill_register(dev->wwan_rfk);
2645         if (ret) {
2646                 pr_err("Unable to register WWAN rfkill device\n");
2647                 rfkill_destroy(dev->wwan_rfk);
2648         }
2649
2650         return ret;
2651 }
2652
2653 /*
2654  * Hotkeys
2655  */
2656 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2657 {
2658         acpi_status status;
2659         u32 result;
2660
2661         status = acpi_evaluate_object(dev->acpi_dev->handle,
2662                                       "ENAB", NULL, NULL);
2663         if (ACPI_FAILURE(status))
2664                 return -ENODEV;
2665
2666         /*
2667          * Enable the "Special Functions" mode only if they are
2668          * supported and if they are activated.
2669          */
2670         if (dev->kbd_function_keys_supported && dev->special_functions)
2671                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2672                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2673         else
2674                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2675
2676         if (result == TOS_FAILURE)
2677                 return -EIO;
2678         else if (result == TOS_NOT_SUPPORTED)
2679                 return -ENODEV;
2680
2681         return 0;
2682 }
2683
2684 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2685                                       struct serio *port)
2686 {
2687         if (str & I8042_STR_AUXDATA)
2688                 return false;
2689
2690         if (unlikely(data == 0xe0))
2691                 return false;
2692
2693         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2694                 schedule_work(&toshiba_acpi->hotkey_work);
2695                 return true;
2696         }
2697
2698         return false;
2699 }
2700
2701 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2702 {
2703         acpi_handle ec_handle = ec_get_handle();
2704         acpi_status status;
2705
2706         if (!ec_handle)
2707                 return;
2708
2709         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2710         if (ACPI_FAILURE(status))
2711                 pr_err("ACPI NTFY method execution failed\n");
2712 }
2713
2714 /*
2715  * Returns hotkey scancode, or < 0 on failure.
2716  */
2717 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2718 {
2719         unsigned long long value;
2720         acpi_status status;
2721
2722         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2723                                       NULL, &value);
2724         if (ACPI_FAILURE(status)) {
2725                 pr_err("ACPI INFO method execution failed\n");
2726                 return -EIO;
2727         }
2728
2729         return value;
2730 }
2731
2732 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2733                                        int scancode)
2734 {
2735         if (scancode == 0x100)
2736                 return;
2737
2738         /* Act on key press; ignore key release */
2739         if (scancode & 0x80)
2740                 return;
2741
2742         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2743                 pr_info("Unknown key %x\n", scancode);
2744 }
2745
2746 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2747 {
2748         if (dev->info_supported) {
2749                 int scancode = toshiba_acpi_query_hotkey(dev);
2750
2751                 if (scancode < 0) {
2752                         pr_err("Failed to query hotkey event\n");
2753                 } else if (scancode != 0) {
2754                         toshiba_acpi_report_hotkey(dev, scancode);
2755                         dev->key_event_valid = 1;
2756                         dev->last_key_event = scancode;
2757                 }
2758         } else if (dev->system_event_supported) {
2759                 u32 result;
2760                 u32 value;
2761                 int retries = 3;
2762
2763                 do {
2764                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2765                         switch (result) {
2766                         case TOS_SUCCESS:
2767                                 toshiba_acpi_report_hotkey(dev, (int)value);
2768                                 dev->key_event_valid = 1;
2769                                 dev->last_key_event = value;
2770                                 break;
2771                         case TOS_NOT_SUPPORTED:
2772                                 /*
2773                                  * This is a workaround for an unresolved
2774                                  * issue on some machines where system events
2775                                  * sporadically become disabled.
2776                                  */
2777                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2778                                 if (result == TOS_SUCCESS)
2779                                         pr_notice("Re-enabled hotkeys\n");
2780                                 /* Fall through */
2781                         default:
2782                                 retries--;
2783                                 break;
2784                         }
2785                 } while (retries && result != TOS_FIFO_EMPTY);
2786         }
2787 }
2788
2789 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2790 {
2791         const struct key_entry *keymap = toshiba_acpi_keymap;
2792         acpi_handle ec_handle;
2793         int error;
2794
2795         if (disable_hotkeys) {
2796                 pr_info("Hotkeys disabled by module parameter\n");
2797                 return 0;
2798         }
2799
2800         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2801                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2802                 return 0;
2803         }
2804
2805         error = toshiba_acpi_enable_hotkeys(dev);
2806         if (error)
2807                 return error;
2808
2809         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2810                 pr_notice("Unable to query Hotkey Event Type\n");
2811
2812         dev->hotkey_dev = input_allocate_device();
2813         if (!dev->hotkey_dev)
2814                 return -ENOMEM;
2815
2816         dev->hotkey_dev->name = "Toshiba input device";
2817         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2818         dev->hotkey_dev->id.bustype = BUS_HOST;
2819
2820         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2821             !dev->kbd_function_keys_supported)
2822                 keymap = toshiba_acpi_keymap;
2823         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2824                  dev->kbd_function_keys_supported)
2825                 keymap = toshiba_acpi_alt_keymap;
2826         else
2827                 pr_info("Unknown event type received %x\n",
2828                         dev->hotkey_event_type);
2829         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2830         if (error)
2831                 goto err_free_dev;
2832
2833         /*
2834          * For some machines the SCI responsible for providing hotkey
2835          * notification doesn't fire. We can trigger the notification
2836          * whenever the Fn key is pressed using the NTFY method, if
2837          * supported, so if it's present set up an i8042 key filter
2838          * for this purpose.
2839          */
2840         ec_handle = ec_get_handle();
2841         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2842                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2843
2844                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2845                 if (error) {
2846                         pr_err("Error installing key filter\n");
2847                         goto err_free_dev;
2848                 }
2849
2850                 dev->ntfy_supported = 1;
2851         }
2852
2853         /*
2854          * Determine hotkey query interface. Prefer using the INFO
2855          * method when it is available.
2856          */
2857         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2858                 dev->info_supported = 1;
2859         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2860                 dev->system_event_supported = 1;
2861
2862         if (!dev->info_supported && !dev->system_event_supported) {
2863                 pr_warn("No hotkey query interface found\n");
2864                 goto err_remove_filter;
2865         }
2866
2867         error = input_register_device(dev->hotkey_dev);
2868         if (error) {
2869                 pr_info("Unable to register input device\n");
2870                 goto err_remove_filter;
2871         }
2872
2873         return 0;
2874
2875  err_remove_filter:
2876         if (dev->ntfy_supported)
2877                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2878  err_free_dev:
2879         input_free_device(dev->hotkey_dev);
2880         dev->hotkey_dev = NULL;
2881         return error;
2882 }
2883
2884 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2885 {
2886         struct backlight_properties props;
2887         int brightness;
2888         int ret;
2889
2890         /*
2891          * Some machines don't support the backlight methods at all, and
2892          * others support it read-only. Either of these is pretty useless,
2893          * so only register the backlight device if the backlight method
2894          * supports both reads and writes.
2895          */
2896         brightness = __get_lcd_brightness(dev);
2897         if (brightness < 0)
2898                 return 0;
2899         /*
2900          * If transflective backlight is supported and the brightness is zero
2901          * (lowest brightness level), the set_lcd_brightness function will
2902          * activate the transflective backlight, making the LCD appear to be
2903          * turned off, simply increment the brightness level to avoid that.
2904          */
2905         if (dev->tr_backlight_supported && brightness == 0)
2906                 brightness++;
2907         ret = set_lcd_brightness(dev, brightness);
2908         if (ret) {
2909                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2910                 return 0;
2911         }
2912
2913         /*
2914          * Tell acpi-video-detect code to prefer vendor backlight on all
2915          * systems with transflective backlight and on dmi matched systems.
2916          */
2917         if (dev->tr_backlight_supported ||
2918             dmi_check_system(toshiba_vendor_backlight_dmi))
2919                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2920
2921         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2922                 return 0;
2923
2924         memset(&props, 0, sizeof(props));
2925         props.type = BACKLIGHT_PLATFORM;
2926         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2927
2928         /* Adding an extra level and having 0 change to transflective mode */
2929         if (dev->tr_backlight_supported)
2930                 props.max_brightness++;
2931
2932         dev->backlight_dev = backlight_device_register("toshiba",
2933                                                        &dev->acpi_dev->dev,
2934                                                        dev,
2935                                                        &toshiba_backlight_data,
2936                                                        &props);
2937         if (IS_ERR(dev->backlight_dev)) {
2938                 ret = PTR_ERR(dev->backlight_dev);
2939                 pr_err("Could not register toshiba backlight device\n");
2940                 dev->backlight_dev = NULL;
2941                 return ret;
2942         }
2943
2944         dev->backlight_dev->props.brightness = brightness;
2945         return 0;
2946 }
2947
2948 static void print_supported_features(struct toshiba_acpi_dev *dev)
2949 {
2950         pr_info("Supported laptop features:");
2951
2952         if (dev->hotkey_dev)
2953                 pr_cont(" hotkeys");
2954         if (dev->backlight_dev)
2955                 pr_cont(" backlight");
2956         if (dev->video_supported)
2957                 pr_cont(" video-out");
2958         if (dev->fan_supported)
2959                 pr_cont(" fan");
2960         if (dev->tr_backlight_supported)
2961                 pr_cont(" transflective-backlight");
2962         if (dev->illumination_supported)
2963                 pr_cont(" illumination");
2964         if (dev->kbd_illum_supported)
2965                 pr_cont(" keyboard-backlight");
2966         if (dev->touchpad_supported)
2967                 pr_cont(" touchpad");
2968         if (dev->eco_supported)
2969                 pr_cont(" eco-led");
2970         if (dev->accelerometer_supported)
2971                 pr_cont(" accelerometer-axes");
2972         if (dev->usb_sleep_charge_supported)
2973                 pr_cont(" usb-sleep-charge");
2974         if (dev->usb_rapid_charge_supported)
2975                 pr_cont(" usb-rapid-charge");
2976         if (dev->usb_sleep_music_supported)
2977                 pr_cont(" usb-sleep-music");
2978         if (dev->kbd_function_keys_supported)
2979                 pr_cont(" special-function-keys");
2980         if (dev->panel_power_on_supported)
2981                 pr_cont(" panel-power-on");
2982         if (dev->usb_three_supported)
2983                 pr_cont(" usb3");
2984         if (dev->wwan_supported)
2985                 pr_cont(" wwan");
2986         if (dev->cooling_method_supported)
2987                 pr_cont(" cooling-method");
2988
2989         pr_cont("\n");
2990 }
2991
2992 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2993 {
2994         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2995
2996         misc_deregister(&dev->miscdev);
2997
2998         remove_toshiba_proc_entries(dev);
2999
3000         if (dev->accelerometer_supported && dev->indio_dev) {
3001                 iio_device_unregister(dev->indio_dev);
3002                 iio_device_free(dev->indio_dev);
3003         }
3004
3005         if (dev->sysfs_created)
3006                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3007                                    &toshiba_attr_group);
3008
3009         if (dev->ntfy_supported) {
3010                 i8042_remove_filter(toshiba_acpi_i8042_filter);
3011                 cancel_work_sync(&dev->hotkey_work);
3012         }
3013
3014         if (dev->hotkey_dev)
3015                 input_unregister_device(dev->hotkey_dev);
3016
3017         backlight_device_unregister(dev->backlight_dev);
3018
3019         if (dev->illumination_led_registered)
3020                 led_classdev_unregister(&dev->led_dev);
3021
3022         if (dev->kbd_led_registered)
3023                 led_classdev_unregister(&dev->kbd_led);
3024
3025         if (dev->eco_led_registered)
3026                 led_classdev_unregister(&dev->eco_led);
3027
3028         if (dev->wwan_rfk) {
3029                 rfkill_unregister(dev->wwan_rfk);
3030                 rfkill_destroy(dev->wwan_rfk);
3031         }
3032
3033         if (toshiba_acpi)
3034                 toshiba_acpi = NULL;
3035
3036         kfree(dev);
3037
3038         return 0;
3039 }
3040
3041 static const char *find_hci_method(acpi_handle handle)
3042 {
3043         if (acpi_has_method(handle, "GHCI"))
3044                 return "GHCI";
3045
3046         if (acpi_has_method(handle, "SPFC"))
3047                 return "SPFC";
3048
3049         return NULL;
3050 }
3051
3052 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3053 {
3054         struct toshiba_acpi_dev *dev;
3055         const char *hci_method;
3056         u32 dummy;
3057         int ret = 0;
3058
3059         if (toshiba_acpi)
3060                 return -EBUSY;
3061
3062         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3063                TOSHIBA_ACPI_VERSION);
3064
3065         hci_method = find_hci_method(acpi_dev->handle);
3066         if (!hci_method) {
3067                 pr_err("HCI interface not found\n");
3068                 return -ENODEV;
3069         }
3070
3071         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3072         if (!dev)
3073                 return -ENOMEM;
3074         dev->acpi_dev = acpi_dev;
3075         dev->method_hci = hci_method;
3076         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3077         dev->miscdev.name = "toshiba_acpi";
3078         dev->miscdev.fops = &toshiba_acpi_fops;
3079
3080         ret = misc_register(&dev->miscdev);
3081         if (ret) {
3082                 pr_err("Failed to register miscdevice\n");
3083                 kfree(dev);
3084                 return ret;
3085         }
3086
3087         acpi_dev->driver_data = dev;
3088         dev_set_drvdata(&acpi_dev->dev, dev);
3089
3090         /* Query the BIOS for supported features */
3091
3092         /*
3093          * The "Special Functions" are always supported by the laptops
3094          * with the new keyboard layout, query for its presence to help
3095          * determine the keymap layout to use.
3096          */
3097         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3098         dev->kbd_function_keys_supported = !ret;
3099
3100         dev->hotkey_event_type = 0;
3101         if (toshiba_acpi_setup_keyboard(dev))
3102                 pr_info("Unable to activate hotkeys\n");
3103
3104         /* Determine whether or not BIOS supports transflective backlight */
3105         ret = get_tr_backlight_status(dev, &dummy);
3106         dev->tr_backlight_supported = !ret;
3107
3108         ret = toshiba_acpi_setup_backlight(dev);
3109         if (ret)
3110                 goto error;
3111
3112         toshiba_illumination_available(dev);
3113         if (dev->illumination_supported) {
3114                 dev->led_dev.name = "toshiba::illumination";
3115                 dev->led_dev.max_brightness = 1;
3116                 dev->led_dev.brightness_set = toshiba_illumination_set;
3117                 dev->led_dev.brightness_get = toshiba_illumination_get;
3118                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3119                         dev->illumination_led_registered = true;
3120         }
3121
3122         toshiba_eco_mode_available(dev);
3123         if (dev->eco_supported) {
3124                 dev->eco_led.name = "toshiba::eco_mode";
3125                 dev->eco_led.max_brightness = 1;
3126                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3127                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3128                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3129                         dev->eco_led_registered = true;
3130         }
3131
3132         toshiba_kbd_illum_available(dev);
3133         /*
3134          * Only register the LED if KBD illumination is supported
3135          * and the keyboard backlight operation mode is set to FN-Z
3136          */
3137         if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3138                 dev->kbd_led.name = "toshiba::kbd_backlight";
3139                 dev->kbd_led.max_brightness = 1;
3140                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3141                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3142                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3143                         dev->kbd_led_registered = true;
3144         }
3145
3146         ret = toshiba_touchpad_get(dev, &dummy);
3147         dev->touchpad_supported = !ret;
3148
3149         toshiba_accelerometer_available(dev);
3150         if (dev->accelerometer_supported) {
3151                 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3152                 if (!dev->indio_dev) {
3153                         pr_err("Unable to allocate iio device\n");
3154                         goto iio_error;
3155                 }
3156
3157                 pr_info("Registering Toshiba accelerometer iio device\n");
3158
3159                 dev->indio_dev->info = &toshiba_iio_accel_info;
3160                 dev->indio_dev->name = "Toshiba accelerometer";
3161                 dev->indio_dev->dev.parent = &acpi_dev->dev;
3162                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3163                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3164                 dev->indio_dev->num_channels =
3165                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3166
3167                 ret = iio_device_register(dev->indio_dev);
3168                 if (ret < 0) {
3169                         pr_err("Unable to register iio device\n");
3170                         iio_device_free(dev->indio_dev);
3171                 }
3172         }
3173 iio_error:
3174
3175         toshiba_usb_sleep_charge_available(dev);
3176
3177         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3178         dev->usb_rapid_charge_supported = !ret;
3179
3180         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3181         dev->usb_sleep_music_supported = !ret;
3182
3183         ret = toshiba_panel_power_on_get(dev, &dummy);
3184         dev->panel_power_on_supported = !ret;
3185
3186         ret = toshiba_usb_three_get(dev, &dummy);
3187         dev->usb_three_supported = !ret;
3188
3189         ret = get_video_status(dev, &dummy);
3190         dev->video_supported = !ret;
3191
3192         ret = get_fan_status(dev, &dummy);
3193         dev->fan_supported = !ret;
3194
3195         toshiba_wwan_available(dev);
3196         if (dev->wwan_supported)
3197                 toshiba_acpi_setup_wwan_rfkill(dev);
3198
3199         toshiba_cooling_method_available(dev);
3200
3201         print_supported_features(dev);
3202
3203         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3204                                  &toshiba_attr_group);
3205         if (ret) {
3206                 dev->sysfs_created = 0;
3207                 goto error;
3208         }
3209         dev->sysfs_created = !ret;
3210
3211         create_toshiba_proc_entries(dev);
3212
3213         toshiba_acpi = dev;
3214
3215         return 0;
3216
3217 error:
3218         toshiba_acpi_remove(acpi_dev);
3219         return ret;
3220 }
3221
3222 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3223 {
3224         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3225
3226         switch (event) {
3227         case 0x80: /* Hotkeys and some system events */
3228                 /*
3229                  * Machines with this WMI GUID aren't supported due to bugs in
3230                  * their AML.
3231                  *
3232                  * Return silently to avoid triggering a netlink event.
3233                  */
3234                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3235                         return;
3236                 toshiba_acpi_process_hotkeys(dev);
3237                 break;
3238         case 0x81: /* Dock events */
3239         case 0x82:
3240         case 0x83:
3241                 pr_info("Dock event received %x\n", event);
3242                 break;
3243         case 0x88: /* Thermal events */
3244                 pr_info("Thermal event received\n");
3245                 break;
3246         case 0x8f: /* LID closed */
3247         case 0x90: /* LID is closed and Dock has been ejected */
3248                 break;
3249         case 0x8c: /* SATA power events */
3250         case 0x8b:
3251                 pr_info("SATA power event received %x\n", event);
3252                 break;
3253         case 0x92: /* Keyboard backlight mode changed */
3254                 toshiba_acpi->kbd_event_generated = true;
3255                 /* Update sysfs entries */
3256                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3257                                        &toshiba_attr_group))
3258                         pr_err("Unable to update sysfs entries\n");
3259                 break;
3260         case 0x85: /* Unknown */
3261         case 0x8d: /* Unknown */
3262         case 0x8e: /* Unknown */
3263         case 0x94: /* Unknown */
3264         case 0x95: /* Unknown */
3265         default:
3266                 pr_info("Unknown event received %x\n", event);
3267                 break;
3268         }
3269
3270         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3271                                         dev_name(&acpi_dev->dev),
3272                                         event, (event == 0x80) ?
3273                                         dev->last_key_event : 0);
3274 }
3275
3276 #ifdef CONFIG_PM_SLEEP
3277 static int toshiba_acpi_suspend(struct device *device)
3278 {
3279         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3280
3281         if (dev->hotkey_dev) {
3282                 u32 result;
3283
3284                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3285                 if (result != TOS_SUCCESS)
3286                         pr_info("Unable to disable hotkeys\n");
3287         }
3288
3289         return 0;
3290 }
3291
3292 static int toshiba_acpi_resume(struct device *device)
3293 {
3294         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3295
3296         if (dev->hotkey_dev) {
3297                 if (toshiba_acpi_enable_hotkeys(dev))
3298                         pr_info("Unable to re-enable hotkeys\n");
3299         }
3300
3301         if (dev->wwan_rfk) {
3302                 if (!toshiba_wireless_status(dev))
3303                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3304         }
3305
3306         return 0;
3307 }
3308 #endif
3309
3310 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3311                          toshiba_acpi_suspend, toshiba_acpi_resume);
3312
3313 static struct acpi_driver toshiba_acpi_driver = {
3314         .name   = "Toshiba ACPI driver",
3315         .owner  = THIS_MODULE,
3316         .ids    = toshiba_device_ids,
3317         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3318         .ops    = {
3319                 .add            = toshiba_acpi_add,
3320                 .remove         = toshiba_acpi_remove,
3321                 .notify         = toshiba_acpi_notify,
3322         },
3323         .drv.pm = &toshiba_acpi_pm,
3324 };
3325
3326 static int __init toshiba_acpi_init(void)
3327 {
3328         int ret;
3329
3330         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3331         if (!toshiba_proc_dir) {
3332                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3333                 return -ENODEV;
3334         }
3335
3336         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3337         if (ret) {
3338                 pr_err("Failed to register ACPI driver: %d\n", ret);
3339                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3340         }
3341
3342         return ret;
3343 }
3344
3345 static void __exit toshiba_acpi_exit(void)
3346 {
3347         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3348         if (toshiba_proc_dir)
3349                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3350 }
3351
3352 module_init(toshiba_acpi_init);
3353 module_exit(toshiba_acpi_exit);