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 = kmalloc(count + 1, GFP_KERNEL);
1506         if (!cmd)
1507                 return -ENOMEM;
1508         if (copy_from_user(cmd, buf, count)) {
1509                 kfree(cmd);
1510                 return -EFAULT;
1511         }
1512         cmd[count] = '\0';
1513
1514         buffer = cmd;
1515
1516         /*
1517          * Scan expression.  Multiple expressions may be delimited with ;
1518          * NOTE: To keep scanning simple, invalid fields are ignored.
1519          */
1520         while (remain) {
1521                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1522                         lcd_out = value & 1;
1523                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1524                         crt_out = value & 1;
1525                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1526                         tv_out = value & 1;
1527                 /* Advance to one character past the next ; */
1528                 do {
1529                         ++buffer;
1530                         --remain;
1531                 } while (remain && *(buffer - 1) != ';');
1532         }
1533
1534         kfree(cmd);
1535
1536         lcd_out = crt_out = tv_out = -1;
1537         ret = get_video_status(dev, &video_out);
1538         if (!ret) {
1539                 unsigned int new_video_out = video_out;
1540
1541                 if (lcd_out != -1)
1542                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1543                 if (crt_out != -1)
1544                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1545                 if (tv_out != -1)
1546                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1547                 /*
1548                  * To avoid unnecessary video disruption, only write the new
1549                  * video setting if something changed.
1550                  */
1551                 if (new_video_out != video_out)
1552                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1553         }
1554
1555         return ret ? -EIO : count;
1556 }
1557
1558 static const struct file_operations video_proc_fops = {
1559         .owner          = THIS_MODULE,
1560         .open           = video_proc_open,
1561         .read           = seq_read,
1562         .llseek         = seq_lseek,
1563         .release        = single_release,
1564         .write          = video_proc_write,
1565 };
1566
1567 /* Fan status */
1568 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1569 {
1570         u32 result = hci_read(dev, HCI_FAN, status);
1571
1572         if (result == TOS_FAILURE)
1573                 pr_err("ACPI call to get Fan status failed\n");
1574         else if (result == TOS_NOT_SUPPORTED)
1575                 return -ENODEV;
1576
1577         return result == TOS_SUCCESS ? 0 : -EIO;
1578 }
1579
1580 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1581 {
1582         u32 result = hci_write(dev, HCI_FAN, status);
1583
1584         if (result == TOS_FAILURE)
1585                 pr_err("ACPI call to set Fan status failed\n");
1586         else if (result == TOS_NOT_SUPPORTED)
1587                 return -ENODEV;
1588
1589         return result == TOS_SUCCESS ? 0 : -EIO;
1590 }
1591
1592 static int fan_proc_show(struct seq_file *m, void *v)
1593 {
1594         struct toshiba_acpi_dev *dev = m->private;
1595         u32 value;
1596
1597         if (get_fan_status(dev, &value))
1598                 return -EIO;
1599
1600         seq_printf(m, "running:                 %d\n", (value > 0));
1601         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1602
1603         return 0;
1604 }
1605
1606 static int fan_proc_open(struct inode *inode, struct file *file)
1607 {
1608         return single_open(file, fan_proc_show, PDE_DATA(inode));
1609 }
1610
1611 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1612                               size_t count, loff_t *pos)
1613 {
1614         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1615         char cmd[42];
1616         size_t len;
1617         int value;
1618
1619         len = min(count, sizeof(cmd) - 1);
1620         if (copy_from_user(cmd, buf, len))
1621                 return -EFAULT;
1622         cmd[len] = '\0';
1623
1624         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1625             value != 0 && value != 1)
1626                 return -EINVAL;
1627
1628         if (set_fan_status(dev, value))
1629                 return -EIO;
1630
1631         dev->force_fan = value;
1632
1633         return count;
1634 }
1635
1636 static const struct file_operations fan_proc_fops = {
1637         .owner          = THIS_MODULE,
1638         .open           = fan_proc_open,
1639         .read           = seq_read,
1640         .llseek         = seq_lseek,
1641         .release        = single_release,
1642         .write          = fan_proc_write,
1643 };
1644
1645 static int keys_proc_show(struct seq_file *m, void *v)
1646 {
1647         struct toshiba_acpi_dev *dev = m->private;
1648
1649         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1650         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1651
1652         return 0;
1653 }
1654
1655 static int keys_proc_open(struct inode *inode, struct file *file)
1656 {
1657         return single_open(file, keys_proc_show, PDE_DATA(inode));
1658 }
1659
1660 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1661                                size_t count, loff_t *pos)
1662 {
1663         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1664         char cmd[42];
1665         size_t len;
1666         int value;
1667
1668         len = min(count, sizeof(cmd) - 1);
1669         if (copy_from_user(cmd, buf, len))
1670                 return -EFAULT;
1671         cmd[len] = '\0';
1672
1673         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1674                 dev->key_event_valid = 0;
1675         else
1676                 return -EINVAL;
1677
1678         return count;
1679 }
1680
1681 static const struct file_operations keys_proc_fops = {
1682         .owner          = THIS_MODULE,
1683         .open           = keys_proc_open,
1684         .read           = seq_read,
1685         .llseek         = seq_lseek,
1686         .release        = single_release,
1687         .write          = keys_proc_write,
1688 };
1689
1690 static int version_proc_show(struct seq_file *m, void *v)
1691 {
1692         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1693         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1694         return 0;
1695 }
1696
1697 static int version_proc_open(struct inode *inode, struct file *file)
1698 {
1699         return single_open(file, version_proc_show, PDE_DATA(inode));
1700 }
1701
1702 static const struct file_operations version_proc_fops = {
1703         .owner          = THIS_MODULE,
1704         .open           = version_proc_open,
1705         .read           = seq_read,
1706         .llseek         = seq_lseek,
1707         .release        = single_release,
1708 };
1709
1710 /*
1711  * Proc and module init
1712  */
1713
1714 #define PROC_TOSHIBA            "toshiba"
1715
1716 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1717 {
1718         if (dev->backlight_dev)
1719                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1720                                  &lcd_proc_fops, dev);
1721         if (dev->video_supported)
1722                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1723                                  &video_proc_fops, dev);
1724         if (dev->fan_supported)
1725                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1726                                  &fan_proc_fops, dev);
1727         if (dev->hotkey_dev)
1728                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1729                                  &keys_proc_fops, dev);
1730         proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1731                          &version_proc_fops, dev);
1732 }
1733
1734 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1735 {
1736         if (dev->backlight_dev)
1737                 remove_proc_entry("lcd", toshiba_proc_dir);
1738         if (dev->video_supported)
1739                 remove_proc_entry("video", toshiba_proc_dir);
1740         if (dev->fan_supported)
1741                 remove_proc_entry("fan", toshiba_proc_dir);
1742         if (dev->hotkey_dev)
1743                 remove_proc_entry("keys", toshiba_proc_dir);
1744         remove_proc_entry("version", toshiba_proc_dir);
1745 }
1746
1747 static const struct backlight_ops toshiba_backlight_data = {
1748         .options = BL_CORE_SUSPENDRESUME,
1749         .get_brightness = get_lcd_brightness,
1750         .update_status  = set_lcd_status,
1751 };
1752
1753 /* Keyboard backlight work */
1754 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1755
1756 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1757
1758 /*
1759  * Sysfs files
1760  */
1761 static ssize_t version_show(struct device *dev,
1762                             struct device_attribute *attr, char *buf)
1763 {
1764         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1765 }
1766 static DEVICE_ATTR_RO(version);
1767
1768 static ssize_t fan_store(struct device *dev,
1769                          struct device_attribute *attr,
1770                          const char *buf, size_t count)
1771 {
1772         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1773         int state;
1774         int ret;
1775
1776         ret = kstrtoint(buf, 0, &state);
1777         if (ret)
1778                 return ret;
1779
1780         if (state != 0 && state != 1)
1781                 return -EINVAL;
1782
1783         ret = set_fan_status(toshiba, state);
1784         if (ret)
1785                 return ret;
1786
1787         return count;
1788 }
1789
1790 static ssize_t fan_show(struct device *dev,
1791                         struct device_attribute *attr, char *buf)
1792 {
1793         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1794         u32 value;
1795         int ret;
1796
1797         ret = get_fan_status(toshiba, &value);
1798         if (ret)
1799                 return ret;
1800
1801         return sprintf(buf, "%d\n", value);
1802 }
1803 static DEVICE_ATTR_RW(fan);
1804
1805 static ssize_t kbd_backlight_mode_store(struct device *dev,
1806                                         struct device_attribute *attr,
1807                                         const char *buf, size_t count)
1808 {
1809         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1810         int mode;
1811         int ret;
1812
1813
1814         ret = kstrtoint(buf, 0, &mode);
1815         if (ret)
1816                 return ret;
1817
1818         /* Check for supported modes depending on keyboard backlight type */
1819         if (toshiba->kbd_type == 1) {
1820                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1821                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1822                         return -EINVAL;
1823         } else if (toshiba->kbd_type == 2) {
1824                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1825                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1826                     mode != SCI_KBD_MODE_OFF)
1827                         return -EINVAL;
1828         }
1829
1830         /*
1831          * Set the Keyboard Backlight Mode where:
1832          *      Auto - KBD backlight turns off automatically in given time
1833          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1834          *      ON   - KBD backlight is always on
1835          *      OFF  - KBD backlight is always off
1836          */
1837
1838         /* Only make a change if the actual mode has changed */
1839         if (toshiba->kbd_mode != mode) {
1840                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1841                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1842
1843                 /* OR the "base time" to the actual method format */
1844                 if (toshiba->kbd_type == 1) {
1845                         /* Type 1 requires the current mode */
1846                         time |= toshiba->kbd_mode;
1847                 } else if (toshiba->kbd_type == 2) {
1848                         /* Type 2 requires the desired mode */
1849                         time |= mode;
1850                 }
1851
1852                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1853                 if (ret)
1854                         return ret;
1855
1856                 toshiba->kbd_mode = mode;
1857
1858                 /*
1859                  * Some laptop models with the second generation backlit
1860                  * keyboard (type 2) do not generate the keyboard backlight
1861                  * changed event (0x92), and thus, the driver will never update
1862                  * the sysfs entries.
1863                  *
1864                  * The event is generated right when changing the keyboard
1865                  * backlight mode and the *notify function will set the
1866                  * kbd_event_generated to true.
1867                  *
1868                  * In case the event is not generated, schedule the keyboard
1869                  * backlight work to update the sysfs entries and emulate the
1870                  * event via genetlink.
1871                  */
1872                 if (toshiba->kbd_type == 2 &&
1873                     !toshiba_acpi->kbd_event_generated)
1874                         schedule_work(&kbd_bl_work);
1875         }
1876
1877         return count;
1878 }
1879
1880 static ssize_t kbd_backlight_mode_show(struct device *dev,
1881                                        struct device_attribute *attr,
1882                                        char *buf)
1883 {
1884         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1885         u32 time;
1886
1887         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1888                 return -EIO;
1889
1890         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1891 }
1892 static DEVICE_ATTR_RW(kbd_backlight_mode);
1893
1894 static ssize_t kbd_type_show(struct device *dev,
1895                              struct device_attribute *attr, char *buf)
1896 {
1897         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1898
1899         return sprintf(buf, "%d\n", toshiba->kbd_type);
1900 }
1901 static DEVICE_ATTR_RO(kbd_type);
1902
1903 static ssize_t available_kbd_modes_show(struct device *dev,
1904                                         struct device_attribute *attr,
1905                                         char *buf)
1906 {
1907         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1908
1909         if (toshiba->kbd_type == 1)
1910                 return sprintf(buf, "0x%x 0x%x\n",
1911                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1912
1913         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1914                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1915 }
1916 static DEVICE_ATTR_RO(available_kbd_modes);
1917
1918 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1919                                            struct device_attribute *attr,
1920                                            const char *buf, size_t count)
1921 {
1922         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1923         int time;
1924         int ret;
1925
1926         ret = kstrtoint(buf, 0, &time);
1927         if (ret)
1928                 return ret;
1929
1930         /* Check for supported values depending on kbd_type */
1931         if (toshiba->kbd_type == 1) {
1932                 if (time < 0 || time > 60)
1933                         return -EINVAL;
1934         } else if (toshiba->kbd_type == 2) {
1935                 if (time < 1 || time > 60)
1936                         return -EINVAL;
1937         }
1938
1939         /* Set the Keyboard Backlight Timeout */
1940
1941         /* Only make a change if the actual timeout has changed */
1942         if (toshiba->kbd_time != time) {
1943                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1944                 time = time << HCI_MISC_SHIFT;
1945                 /* OR the "base time" to the actual method format */
1946                 if (toshiba->kbd_type == 1)
1947                         time |= SCI_KBD_MODE_FNZ;
1948                 else if (toshiba->kbd_type == 2)
1949                         time |= SCI_KBD_MODE_AUTO;
1950
1951                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1952                 if (ret)
1953                         return ret;
1954
1955                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1956         }
1957
1958         return count;
1959 }
1960
1961 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1962                                           struct device_attribute *attr,
1963                                           char *buf)
1964 {
1965         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1966         u32 time;
1967
1968         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1969                 return -EIO;
1970
1971         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1972 }
1973 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1974
1975 static ssize_t touchpad_store(struct device *dev,
1976                               struct device_attribute *attr,
1977                               const char *buf, size_t count)
1978 {
1979         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1980         int state;
1981         int ret;
1982
1983         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1984         ret = kstrtoint(buf, 0, &state);
1985         if (ret)
1986                 return ret;
1987         if (state != 0 && state != 1)
1988                 return -EINVAL;
1989
1990         ret = toshiba_touchpad_set(toshiba, state);
1991         if (ret)
1992                 return ret;
1993
1994         return count;
1995 }
1996
1997 static ssize_t touchpad_show(struct device *dev,
1998                              struct device_attribute *attr, char *buf)
1999 {
2000         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2001         u32 state;
2002         int ret;
2003
2004         ret = toshiba_touchpad_get(toshiba, &state);
2005         if (ret < 0)
2006                 return ret;
2007
2008         return sprintf(buf, "%i\n", state);
2009 }
2010 static DEVICE_ATTR_RW(touchpad);
2011
2012 static ssize_t usb_sleep_charge_show(struct device *dev,
2013                                      struct device_attribute *attr, char *buf)
2014 {
2015         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2016         u32 mode;
2017         int ret;
2018
2019         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2020         if (ret < 0)
2021                 return ret;
2022
2023         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2024 }
2025
2026 static ssize_t usb_sleep_charge_store(struct device *dev,
2027                                       struct device_attribute *attr,
2028                                       const char *buf, size_t count)
2029 {
2030         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2031         int state;
2032         u32 mode;
2033         int ret;
2034
2035         ret = kstrtoint(buf, 0, &state);
2036         if (ret)
2037                 return ret;
2038         /*
2039          * Check for supported values, where:
2040          * 0 - Disabled
2041          * 1 - Alternate (Non USB conformant devices that require more power)
2042          * 2 - Auto (USB conformant devices)
2043          * 3 - Typical
2044          */
2045         if (state != 0 && state != 1 && state != 2 && state != 3)
2046                 return -EINVAL;
2047
2048         /* Set the USB charging mode to internal value */
2049         mode = toshiba->usbsc_mode_base;
2050         if (state == 0)
2051                 mode |= SCI_USB_CHARGE_DISABLED;
2052         else if (state == 1)
2053                 mode |= SCI_USB_CHARGE_ALTERNATE;
2054         else if (state == 2)
2055                 mode |= SCI_USB_CHARGE_AUTO;
2056         else if (state == 3)
2057                 mode |= SCI_USB_CHARGE_TYPICAL;
2058
2059         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2060         if (ret)
2061                 return ret;
2062
2063         return count;
2064 }
2065 static DEVICE_ATTR_RW(usb_sleep_charge);
2066
2067 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2068                                                struct device_attribute *attr,
2069                                                char *buf)
2070 {
2071         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2072         int bat_lvl, status;
2073         u32 state;
2074         int ret;
2075         int tmp;
2076
2077         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2078         if (ret < 0)
2079                 return ret;
2080
2081         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2082         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2083         status = (tmp == 0x4) ? 1 : 0;
2084         /* Determine the battery level set */
2085         bat_lvl = state >> HCI_MISC_SHIFT;
2086
2087         return sprintf(buf, "%d %d\n", status, bat_lvl);
2088 }
2089
2090 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2091                                                 struct device_attribute *attr,
2092                                                 const char *buf, size_t count)
2093 {
2094         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2095         u32 status;
2096         int value;
2097         int ret;
2098         int tmp;
2099
2100         ret = kstrtoint(buf, 0, &value);
2101         if (ret)
2102                 return ret;
2103
2104         /*
2105          * Set the status of the function:
2106          * 0 - Disabled
2107          * 1-100 - Enabled
2108          */
2109         if (value < 0 || value > 100)
2110                 return -EINVAL;
2111
2112         if (value == 0) {
2113                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2114                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2115         } else {
2116                 tmp = value << HCI_MISC_SHIFT;
2117                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2118         }
2119         ret = toshiba_sleep_functions_status_set(toshiba, status);
2120         if (ret < 0)
2121                 return ret;
2122
2123         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2124
2125         return count;
2126 }
2127 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2128
2129 static ssize_t usb_rapid_charge_show(struct device *dev,
2130                                      struct device_attribute *attr, char *buf)
2131 {
2132         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2133         u32 state;
2134         int ret;
2135
2136         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2137         if (ret < 0)
2138                 return ret;
2139
2140         return sprintf(buf, "%d\n", state);
2141 }
2142
2143 static ssize_t usb_rapid_charge_store(struct device *dev,
2144                                       struct device_attribute *attr,
2145                                       const char *buf, size_t count)
2146 {
2147         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2148         int state;
2149         int ret;
2150
2151         ret = kstrtoint(buf, 0, &state);
2152         if (ret)
2153                 return ret;
2154         if (state != 0 && state != 1)
2155                 return -EINVAL;
2156
2157         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2158         if (ret)
2159                 return ret;
2160
2161         return count;
2162 }
2163 static DEVICE_ATTR_RW(usb_rapid_charge);
2164
2165 static ssize_t usb_sleep_music_show(struct device *dev,
2166                                     struct device_attribute *attr, char *buf)
2167 {
2168         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2169         u32 state;
2170         int ret;
2171
2172         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2173         if (ret < 0)
2174                 return ret;
2175
2176         return sprintf(buf, "%d\n", state);
2177 }
2178
2179 static ssize_t usb_sleep_music_store(struct device *dev,
2180                                      struct device_attribute *attr,
2181                                      const char *buf, size_t count)
2182 {
2183         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2184         int state;
2185         int ret;
2186
2187         ret = kstrtoint(buf, 0, &state);
2188         if (ret)
2189                 return ret;
2190         if (state != 0 && state != 1)
2191                 return -EINVAL;
2192
2193         ret = toshiba_usb_sleep_music_set(toshiba, state);
2194         if (ret)
2195                 return ret;
2196
2197         return count;
2198 }
2199 static DEVICE_ATTR_RW(usb_sleep_music);
2200
2201 static ssize_t kbd_function_keys_show(struct device *dev,
2202                                       struct device_attribute *attr, char *buf)
2203 {
2204         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2205         int mode;
2206         int ret;
2207
2208         ret = toshiba_function_keys_get(toshiba, &mode);
2209         if (ret < 0)
2210                 return ret;
2211
2212         return sprintf(buf, "%d\n", mode);
2213 }
2214
2215 static ssize_t kbd_function_keys_store(struct device *dev,
2216                                        struct device_attribute *attr,
2217                                        const char *buf, size_t count)
2218 {
2219         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220         int mode;
2221         int ret;
2222
2223         ret = kstrtoint(buf, 0, &mode);
2224         if (ret)
2225                 return ret;
2226         /*
2227          * Check for the function keys mode where:
2228          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2229          * 1 - Special functions (Opposite of the above setting)
2230          */
2231         if (mode != 0 && mode != 1)
2232                 return -EINVAL;
2233
2234         ret = toshiba_function_keys_set(toshiba, mode);
2235         if (ret)
2236                 return ret;
2237
2238         pr_info("Reboot for changes to KBD Function Keys to take effect");
2239
2240         return count;
2241 }
2242 static DEVICE_ATTR_RW(kbd_function_keys);
2243
2244 static ssize_t panel_power_on_show(struct device *dev,
2245                                    struct device_attribute *attr, char *buf)
2246 {
2247         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2248         u32 state;
2249         int ret;
2250
2251         ret = toshiba_panel_power_on_get(toshiba, &state);
2252         if (ret < 0)
2253                 return ret;
2254
2255         return sprintf(buf, "%d\n", state);
2256 }
2257
2258 static ssize_t panel_power_on_store(struct device *dev,
2259                                     struct device_attribute *attr,
2260                                     const char *buf, size_t count)
2261 {
2262         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2263         int state;
2264         int ret;
2265
2266         ret = kstrtoint(buf, 0, &state);
2267         if (ret)
2268                 return ret;
2269         if (state != 0 && state != 1)
2270                 return -EINVAL;
2271
2272         ret = toshiba_panel_power_on_set(toshiba, state);
2273         if (ret)
2274                 return ret;
2275
2276         pr_info("Reboot for changes to Panel Power ON to take effect");
2277
2278         return count;
2279 }
2280 static DEVICE_ATTR_RW(panel_power_on);
2281
2282 static ssize_t usb_three_show(struct device *dev,
2283                               struct device_attribute *attr, char *buf)
2284 {
2285         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2286         u32 state;
2287         int ret;
2288
2289         ret = toshiba_usb_three_get(toshiba, &state);
2290         if (ret < 0)
2291                 return ret;
2292
2293         return sprintf(buf, "%d\n", state);
2294 }
2295
2296 static ssize_t usb_three_store(struct device *dev,
2297                                struct device_attribute *attr,
2298                                const char *buf, size_t count)
2299 {
2300         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301         int state;
2302         int ret;
2303
2304         ret = kstrtoint(buf, 0, &state);
2305         if (ret)
2306                 return ret;
2307         /*
2308          * Check for USB 3 mode where:
2309          * 0 - Disabled (Acts like a USB 2 port, saving power)
2310          * 1 - Enabled
2311          */
2312         if (state != 0 && state != 1)
2313                 return -EINVAL;
2314
2315         ret = toshiba_usb_three_set(toshiba, state);
2316         if (ret)
2317                 return ret;
2318
2319         pr_info("Reboot for changes to USB 3 to take effect");
2320
2321         return count;
2322 }
2323 static DEVICE_ATTR_RW(usb_three);
2324
2325 static ssize_t cooling_method_show(struct device *dev,
2326                                    struct device_attribute *attr, char *buf)
2327 {
2328         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2329         int state;
2330         int ret;
2331
2332         ret = toshiba_cooling_method_get(toshiba, &state);
2333         if (ret < 0)
2334                 return ret;
2335
2336         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2337 }
2338
2339 static ssize_t cooling_method_store(struct device *dev,
2340                                     struct device_attribute *attr,
2341                                     const char *buf, size_t count)
2342 {
2343         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2344         int state;
2345         int ret;
2346
2347         ret = kstrtoint(buf, 0, &state);
2348         if (ret)
2349                 return ret;
2350
2351         /*
2352          * Check for supported values
2353          * Depending on the laptop model, some only support these two:
2354          * 0 - Maximum Performance
2355          * 1 - Battery Optimized
2356          *
2357          * While some others support all three methods:
2358          * 0 - Maximum Performance
2359          * 1 - Performance
2360          * 2 - Battery Optimized
2361          */
2362         if (state < 0 || state > toshiba->max_cooling_method)
2363                 return -EINVAL;
2364
2365         ret = toshiba_cooling_method_set(toshiba, state);
2366         if (ret)
2367                 return ret;
2368
2369         return count;
2370 }
2371 static DEVICE_ATTR_RW(cooling_method);
2372
2373 static struct attribute *toshiba_attributes[] = {
2374         &dev_attr_version.attr,
2375         &dev_attr_fan.attr,
2376         &dev_attr_kbd_backlight_mode.attr,
2377         &dev_attr_kbd_type.attr,
2378         &dev_attr_available_kbd_modes.attr,
2379         &dev_attr_kbd_backlight_timeout.attr,
2380         &dev_attr_touchpad.attr,
2381         &dev_attr_usb_sleep_charge.attr,
2382         &dev_attr_sleep_functions_on_battery.attr,
2383         &dev_attr_usb_rapid_charge.attr,
2384         &dev_attr_usb_sleep_music.attr,
2385         &dev_attr_kbd_function_keys.attr,
2386         &dev_attr_panel_power_on.attr,
2387         &dev_attr_usb_three.attr,
2388         &dev_attr_cooling_method.attr,
2389         NULL,
2390 };
2391
2392 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2393                                         struct attribute *attr, int idx)
2394 {
2395         struct device *dev = container_of(kobj, struct device, kobj);
2396         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2397         bool exists = true;
2398
2399         if (attr == &dev_attr_fan.attr)
2400                 exists = (drv->fan_supported) ? true : false;
2401         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2402                 exists = (drv->kbd_illum_supported) ? true : false;
2403         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2404                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2405         else if (attr == &dev_attr_touchpad.attr)
2406                 exists = (drv->touchpad_supported) ? true : false;
2407         else if (attr == &dev_attr_usb_sleep_charge.attr)
2408                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2409         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2410                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2411         else if (attr == &dev_attr_usb_rapid_charge.attr)
2412                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2413         else if (attr == &dev_attr_usb_sleep_music.attr)
2414                 exists = (drv->usb_sleep_music_supported) ? true : false;
2415         else if (attr == &dev_attr_kbd_function_keys.attr)
2416                 exists = (drv->kbd_function_keys_supported) ? true : false;
2417         else if (attr == &dev_attr_panel_power_on.attr)
2418                 exists = (drv->panel_power_on_supported) ? true : false;
2419         else if (attr == &dev_attr_usb_three.attr)
2420                 exists = (drv->usb_three_supported) ? true : false;
2421         else if (attr == &dev_attr_cooling_method.attr)
2422                 exists = (drv->cooling_method_supported) ? true : false;
2423
2424         return exists ? attr->mode : 0;
2425 }
2426
2427 static struct attribute_group toshiba_attr_group = {
2428         .is_visible = toshiba_sysfs_is_visible,
2429         .attrs = toshiba_attributes,
2430 };
2431
2432 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2433 {
2434         struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2435
2436         /* Update the sysfs entries */
2437         if (sysfs_update_group(&acpi_dev->dev.kobj,
2438                                &toshiba_attr_group))
2439                 pr_err("Unable to update sysfs entries\n");
2440
2441         /* Emulate the keyboard backlight event */
2442         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2443                                         dev_name(&acpi_dev->dev),
2444                                         0x92, 0);
2445 }
2446
2447 /*
2448  * IIO device
2449  */
2450
2451 enum toshiba_iio_accel_chan {
2452         AXIS_X,
2453         AXIS_Y,
2454         AXIS_Z
2455 };
2456
2457 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2458 {
2459         u32 xyval, zval;
2460         int ret;
2461
2462         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2463         if (ret < 0)
2464                 return ret;
2465
2466         switch (chan) {
2467         case AXIS_X:
2468                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2469                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2470         case AXIS_Y:
2471                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2472                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2473                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2474         case AXIS_Z:
2475                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2476                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2477         }
2478
2479         return ret;
2480 }
2481
2482 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2483                                       struct iio_chan_spec const *chan,
2484                                       int *val, int *val2, long mask)
2485 {
2486         int ret;
2487
2488         switch (mask) {
2489         case IIO_CHAN_INFO_RAW:
2490                 ret = toshiba_iio_accel_get_axis(chan->channel);
2491                 if (ret == -EIO || ret == -ENODEV)
2492                         return ret;
2493
2494                 *val = ret;
2495
2496                 return IIO_VAL_INT;
2497         }
2498
2499         return -EINVAL;
2500 }
2501
2502 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2503         .type = IIO_ACCEL, \
2504         .modified = 1, \
2505         .channel = chan, \
2506         .channel2 = IIO_MOD_##axis, \
2507         .output = 1, \
2508         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2509 }
2510
2511 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2512         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2513         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2514         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2515 };
2516
2517 static const struct iio_info toshiba_iio_accel_info = {
2518         .driver_module = THIS_MODULE,
2519         .read_raw = &toshiba_iio_accel_read_raw,
2520 };
2521
2522 /*
2523  * Misc device
2524  */
2525 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2526 {
2527         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2528                               regs->edx, regs->esi, regs->edi };
2529         u32 out[TCI_WORDS];
2530         acpi_status status;
2531
2532         status = tci_raw(toshiba_acpi, in, out);
2533         if (ACPI_FAILURE(status)) {
2534                 pr_err("ACPI call to query SMM registers failed\n");
2535                 return -EIO;
2536         }
2537
2538         /* Fillout the SMM struct with the TCI call results */
2539         regs->eax = out[0];
2540         regs->ebx = out[1];
2541         regs->ecx = out[2];
2542         regs->edx = out[3];
2543         regs->esi = out[4];
2544         regs->edi = out[5];
2545
2546         return 0;
2547 }
2548
2549 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2550                                unsigned long arg)
2551 {
2552         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2553         SMMRegisters regs;
2554         int ret;
2555
2556         if (!argp)
2557                 return -EINVAL;
2558
2559         switch (cmd) {
2560         case TOSH_SMM:
2561                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2562                         return -EFAULT;
2563                 ret = toshiba_acpi_smm_bridge(&regs);
2564                 if (ret)
2565                         return ret;
2566                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2567                         return -EFAULT;
2568                 break;
2569         case TOSHIBA_ACPI_SCI:
2570                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2571                         return -EFAULT;
2572                 /* Ensure we are being called with a SCI_{GET, SET} register */
2573                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2574                         return -EINVAL;
2575                 if (!sci_open(toshiba_acpi))
2576                         return -EIO;
2577                 ret = toshiba_acpi_smm_bridge(&regs);
2578                 sci_close(toshiba_acpi);
2579                 if (ret)
2580                         return ret;
2581                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2582                         return -EFAULT;
2583                 break;
2584         default:
2585                 return -EINVAL;
2586         }
2587
2588         return 0;
2589 }
2590
2591 static const struct file_operations toshiba_acpi_fops = {
2592         .owner          = THIS_MODULE,
2593         .unlocked_ioctl = toshiba_acpi_ioctl,
2594         .llseek         = noop_llseek,
2595 };
2596
2597 /*
2598  * WWAN RFKill handlers
2599  */
2600 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2601 {
2602         struct toshiba_acpi_dev *dev = data;
2603         int ret;
2604
2605         ret = toshiba_wireless_status(dev);
2606         if (ret)
2607                 return ret;
2608
2609         if (!dev->killswitch)
2610                 return 0;
2611
2612         return toshiba_wwan_set(dev, !blocked);
2613 }
2614
2615 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2616 {
2617         struct toshiba_acpi_dev *dev = data;
2618
2619         if (toshiba_wireless_status(dev))
2620                 return;
2621
2622         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2623 }
2624
2625 static const struct rfkill_ops wwan_rfk_ops = {
2626         .set_block = toshiba_acpi_wwan_set_block,
2627         .poll = toshiba_acpi_wwan_poll,
2628 };
2629
2630 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2631 {
2632         int ret = toshiba_wireless_status(dev);
2633
2634         if (ret)
2635                 return ret;
2636
2637         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2638                                      &dev->acpi_dev->dev,
2639                                      RFKILL_TYPE_WWAN,
2640                                      &wwan_rfk_ops,
2641                                      dev);
2642         if (!dev->wwan_rfk) {
2643                 pr_err("Unable to allocate WWAN rfkill device\n");
2644                 return -ENOMEM;
2645         }
2646
2647         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2648
2649         ret = rfkill_register(dev->wwan_rfk);
2650         if (ret) {
2651                 pr_err("Unable to register WWAN rfkill device\n");
2652                 rfkill_destroy(dev->wwan_rfk);
2653         }
2654
2655         return ret;
2656 }
2657
2658 /*
2659  * Hotkeys
2660  */
2661 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2662 {
2663         acpi_status status;
2664         u32 result;
2665
2666         status = acpi_evaluate_object(dev->acpi_dev->handle,
2667                                       "ENAB", NULL, NULL);
2668         if (ACPI_FAILURE(status))
2669                 return -ENODEV;
2670
2671         /*
2672          * Enable the "Special Functions" mode only if they are
2673          * supported and if they are activated.
2674          */
2675         if (dev->kbd_function_keys_supported && dev->special_functions)
2676                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2677                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2678         else
2679                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2680
2681         if (result == TOS_FAILURE)
2682                 return -EIO;
2683         else if (result == TOS_NOT_SUPPORTED)
2684                 return -ENODEV;
2685
2686         return 0;
2687 }
2688
2689 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2690                                       struct serio *port)
2691 {
2692         if (str & I8042_STR_AUXDATA)
2693                 return false;
2694
2695         if (unlikely(data == 0xe0))
2696                 return false;
2697
2698         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2699                 schedule_work(&toshiba_acpi->hotkey_work);
2700                 return true;
2701         }
2702
2703         return false;
2704 }
2705
2706 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2707 {
2708         acpi_handle ec_handle = ec_get_handle();
2709         acpi_status status;
2710
2711         if (!ec_handle)
2712                 return;
2713
2714         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2715         if (ACPI_FAILURE(status))
2716                 pr_err("ACPI NTFY method execution failed\n");
2717 }
2718
2719 /*
2720  * Returns hotkey scancode, or < 0 on failure.
2721  */
2722 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2723 {
2724         unsigned long long value;
2725         acpi_status status;
2726
2727         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2728                                       NULL, &value);
2729         if (ACPI_FAILURE(status)) {
2730                 pr_err("ACPI INFO method execution failed\n");
2731                 return -EIO;
2732         }
2733
2734         return value;
2735 }
2736
2737 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2738                                        int scancode)
2739 {
2740         if (scancode == 0x100)
2741                 return;
2742
2743         /* Act on key press; ignore key release */
2744         if (scancode & 0x80)
2745                 return;
2746
2747         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2748                 pr_info("Unknown key %x\n", scancode);
2749 }
2750
2751 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2752 {
2753         if (dev->info_supported) {
2754                 int scancode = toshiba_acpi_query_hotkey(dev);
2755
2756                 if (scancode < 0) {
2757                         pr_err("Failed to query hotkey event\n");
2758                 } else if (scancode != 0) {
2759                         toshiba_acpi_report_hotkey(dev, scancode);
2760                         dev->key_event_valid = 1;
2761                         dev->last_key_event = scancode;
2762                 }
2763         } else if (dev->system_event_supported) {
2764                 u32 result;
2765                 u32 value;
2766                 int retries = 3;
2767
2768                 do {
2769                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2770                         switch (result) {
2771                         case TOS_SUCCESS:
2772                                 toshiba_acpi_report_hotkey(dev, (int)value);
2773                                 dev->key_event_valid = 1;
2774                                 dev->last_key_event = value;
2775                                 break;
2776                         case TOS_NOT_SUPPORTED:
2777                                 /*
2778                                  * This is a workaround for an unresolved
2779                                  * issue on some machines where system events
2780                                  * sporadically become disabled.
2781                                  */
2782                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2783                                 if (result == TOS_SUCCESS)
2784                                         pr_notice("Re-enabled hotkeys\n");
2785                                 /* Fall through */
2786                         default:
2787                                 retries--;
2788                                 break;
2789                         }
2790                 } while (retries && result != TOS_FIFO_EMPTY);
2791         }
2792 }
2793
2794 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2795 {
2796         const struct key_entry *keymap = toshiba_acpi_keymap;
2797         acpi_handle ec_handle;
2798         int error;
2799
2800         if (disable_hotkeys) {
2801                 pr_info("Hotkeys disabled by module parameter\n");
2802                 return 0;
2803         }
2804
2805         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2806                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2807                 return 0;
2808         }
2809
2810         error = toshiba_acpi_enable_hotkeys(dev);
2811         if (error)
2812                 return error;
2813
2814         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2815                 pr_notice("Unable to query Hotkey Event Type\n");
2816
2817         dev->hotkey_dev = input_allocate_device();
2818         if (!dev->hotkey_dev)
2819                 return -ENOMEM;
2820
2821         dev->hotkey_dev->name = "Toshiba input device";
2822         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2823         dev->hotkey_dev->id.bustype = BUS_HOST;
2824
2825         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2826             !dev->kbd_function_keys_supported)
2827                 keymap = toshiba_acpi_keymap;
2828         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2829                  dev->kbd_function_keys_supported)
2830                 keymap = toshiba_acpi_alt_keymap;
2831         else
2832                 pr_info("Unknown event type received %x\n",
2833                         dev->hotkey_event_type);
2834         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2835         if (error)
2836                 goto err_free_dev;
2837
2838         /*
2839          * For some machines the SCI responsible for providing hotkey
2840          * notification doesn't fire. We can trigger the notification
2841          * whenever the Fn key is pressed using the NTFY method, if
2842          * supported, so if it's present set up an i8042 key filter
2843          * for this purpose.
2844          */
2845         ec_handle = ec_get_handle();
2846         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2847                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2848
2849                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2850                 if (error) {
2851                         pr_err("Error installing key filter\n");
2852                         goto err_free_keymap;
2853                 }
2854
2855                 dev->ntfy_supported = 1;
2856         }
2857
2858         /*
2859          * Determine hotkey query interface. Prefer using the INFO
2860          * method when it is available.
2861          */
2862         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2863                 dev->info_supported = 1;
2864         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2865                 dev->system_event_supported = 1;
2866
2867         if (!dev->info_supported && !dev->system_event_supported) {
2868                 pr_warn("No hotkey query interface found\n");
2869                 goto err_remove_filter;
2870         }
2871
2872         error = input_register_device(dev->hotkey_dev);
2873         if (error) {
2874                 pr_info("Unable to register input device\n");
2875                 goto err_remove_filter;
2876         }
2877
2878         return 0;
2879
2880  err_remove_filter:
2881         if (dev->ntfy_supported)
2882                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2883  err_free_keymap:
2884         sparse_keymap_free(dev->hotkey_dev);
2885  err_free_dev:
2886         input_free_device(dev->hotkey_dev);
2887         dev->hotkey_dev = NULL;
2888         return error;
2889 }
2890
2891 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2892 {
2893         struct backlight_properties props;
2894         int brightness;
2895         int ret;
2896
2897         /*
2898          * Some machines don't support the backlight methods at all, and
2899          * others support it read-only. Either of these is pretty useless,
2900          * so only register the backlight device if the backlight method
2901          * supports both reads and writes.
2902          */
2903         brightness = __get_lcd_brightness(dev);
2904         if (brightness < 0)
2905                 return 0;
2906         /*
2907          * If transflective backlight is supported and the brightness is zero
2908          * (lowest brightness level), the set_lcd_brightness function will
2909          * activate the transflective backlight, making the LCD appear to be
2910          * turned off, simply increment the brightness level to avoid that.
2911          */
2912         if (dev->tr_backlight_supported && brightness == 0)
2913                 brightness++;
2914         ret = set_lcd_brightness(dev, brightness);
2915         if (ret) {
2916                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2917                 return 0;
2918         }
2919
2920         /*
2921          * Tell acpi-video-detect code to prefer vendor backlight on all
2922          * systems with transflective backlight and on dmi matched systems.
2923          */
2924         if (dev->tr_backlight_supported ||
2925             dmi_check_system(toshiba_vendor_backlight_dmi))
2926                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2927
2928         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2929                 return 0;
2930
2931         memset(&props, 0, sizeof(props));
2932         props.type = BACKLIGHT_PLATFORM;
2933         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2934
2935         /* Adding an extra level and having 0 change to transflective mode */
2936         if (dev->tr_backlight_supported)
2937                 props.max_brightness++;
2938
2939         dev->backlight_dev = backlight_device_register("toshiba",
2940                                                        &dev->acpi_dev->dev,
2941                                                        dev,
2942                                                        &toshiba_backlight_data,
2943                                                        &props);
2944         if (IS_ERR(dev->backlight_dev)) {
2945                 ret = PTR_ERR(dev->backlight_dev);
2946                 pr_err("Could not register toshiba backlight device\n");
2947                 dev->backlight_dev = NULL;
2948                 return ret;
2949         }
2950
2951         dev->backlight_dev->props.brightness = brightness;
2952         return 0;
2953 }
2954
2955 static void print_supported_features(struct toshiba_acpi_dev *dev)
2956 {
2957         pr_info("Supported laptop features:");
2958
2959         if (dev->hotkey_dev)
2960                 pr_cont(" hotkeys");
2961         if (dev->backlight_dev)
2962                 pr_cont(" backlight");
2963         if (dev->video_supported)
2964                 pr_cont(" video-out");
2965         if (dev->fan_supported)
2966                 pr_cont(" fan");
2967         if (dev->tr_backlight_supported)
2968                 pr_cont(" transflective-backlight");
2969         if (dev->illumination_supported)
2970                 pr_cont(" illumination");
2971         if (dev->kbd_illum_supported)
2972                 pr_cont(" keyboard-backlight");
2973         if (dev->touchpad_supported)
2974                 pr_cont(" touchpad");
2975         if (dev->eco_supported)
2976                 pr_cont(" eco-led");
2977         if (dev->accelerometer_supported)
2978                 pr_cont(" accelerometer-axes");
2979         if (dev->usb_sleep_charge_supported)
2980                 pr_cont(" usb-sleep-charge");
2981         if (dev->usb_rapid_charge_supported)
2982                 pr_cont(" usb-rapid-charge");
2983         if (dev->usb_sleep_music_supported)
2984                 pr_cont(" usb-sleep-music");
2985         if (dev->kbd_function_keys_supported)
2986                 pr_cont(" special-function-keys");
2987         if (dev->panel_power_on_supported)
2988                 pr_cont(" panel-power-on");
2989         if (dev->usb_three_supported)
2990                 pr_cont(" usb3");
2991         if (dev->wwan_supported)
2992                 pr_cont(" wwan");
2993         if (dev->cooling_method_supported)
2994                 pr_cont(" cooling-method");
2995
2996         pr_cont("\n");
2997 }
2998
2999 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
3000 {
3001         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3002
3003         misc_deregister(&dev->miscdev);
3004
3005         remove_toshiba_proc_entries(dev);
3006
3007         if (dev->accelerometer_supported && dev->indio_dev) {
3008                 iio_device_unregister(dev->indio_dev);
3009                 iio_device_free(dev->indio_dev);
3010         }
3011
3012         if (dev->sysfs_created)
3013                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3014                                    &toshiba_attr_group);
3015
3016         if (dev->ntfy_supported) {
3017                 i8042_remove_filter(toshiba_acpi_i8042_filter);
3018                 cancel_work_sync(&dev->hotkey_work);
3019         }
3020
3021         if (dev->hotkey_dev) {
3022                 input_unregister_device(dev->hotkey_dev);
3023                 sparse_keymap_free(dev->hotkey_dev);
3024         }
3025
3026         backlight_device_unregister(dev->backlight_dev);
3027
3028         if (dev->illumination_led_registered)
3029                 led_classdev_unregister(&dev->led_dev);
3030
3031         if (dev->kbd_led_registered)
3032                 led_classdev_unregister(&dev->kbd_led);
3033
3034         if (dev->eco_led_registered)
3035                 led_classdev_unregister(&dev->eco_led);
3036
3037         if (dev->wwan_rfk) {
3038                 rfkill_unregister(dev->wwan_rfk);
3039                 rfkill_destroy(dev->wwan_rfk);
3040         }
3041
3042         if (toshiba_acpi)
3043                 toshiba_acpi = NULL;
3044
3045         kfree(dev);
3046
3047         return 0;
3048 }
3049
3050 static const char *find_hci_method(acpi_handle handle)
3051 {
3052         if (acpi_has_method(handle, "GHCI"))
3053                 return "GHCI";
3054
3055         if (acpi_has_method(handle, "SPFC"))
3056                 return "SPFC";
3057
3058         return NULL;
3059 }
3060
3061 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3062 {
3063         struct toshiba_acpi_dev *dev;
3064         const char *hci_method;
3065         u32 dummy;
3066         int ret = 0;
3067
3068         if (toshiba_acpi)
3069                 return -EBUSY;
3070
3071         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3072                TOSHIBA_ACPI_VERSION);
3073
3074         hci_method = find_hci_method(acpi_dev->handle);
3075         if (!hci_method) {
3076                 pr_err("HCI interface not found\n");
3077                 return -ENODEV;
3078         }
3079
3080         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3081         if (!dev)
3082                 return -ENOMEM;
3083         dev->acpi_dev = acpi_dev;
3084         dev->method_hci = hci_method;
3085         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3086         dev->miscdev.name = "toshiba_acpi";
3087         dev->miscdev.fops = &toshiba_acpi_fops;
3088
3089         ret = misc_register(&dev->miscdev);
3090         if (ret) {
3091                 pr_err("Failed to register miscdevice\n");
3092                 kfree(dev);
3093                 return ret;
3094         }
3095
3096         acpi_dev->driver_data = dev;
3097         dev_set_drvdata(&acpi_dev->dev, dev);
3098
3099         /* Query the BIOS for supported features */
3100
3101         /*
3102          * The "Special Functions" are always supported by the laptops
3103          * with the new keyboard layout, query for its presence to help
3104          * determine the keymap layout to use.
3105          */
3106         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3107         dev->kbd_function_keys_supported = !ret;
3108
3109         dev->hotkey_event_type = 0;
3110         if (toshiba_acpi_setup_keyboard(dev))
3111                 pr_info("Unable to activate hotkeys\n");
3112
3113         /* Determine whether or not BIOS supports transflective backlight */
3114         ret = get_tr_backlight_status(dev, &dummy);
3115         dev->tr_backlight_supported = !ret;
3116
3117         ret = toshiba_acpi_setup_backlight(dev);
3118         if (ret)
3119                 goto error;
3120
3121         toshiba_illumination_available(dev);
3122         if (dev->illumination_supported) {
3123                 dev->led_dev.name = "toshiba::illumination";
3124                 dev->led_dev.max_brightness = 1;
3125                 dev->led_dev.brightness_set = toshiba_illumination_set;
3126                 dev->led_dev.brightness_get = toshiba_illumination_get;
3127                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3128                         dev->illumination_led_registered = true;
3129         }
3130
3131         toshiba_eco_mode_available(dev);
3132         if (dev->eco_supported) {
3133                 dev->eco_led.name = "toshiba::eco_mode";
3134                 dev->eco_led.max_brightness = 1;
3135                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3136                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3137                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3138                         dev->eco_led_registered = true;
3139         }
3140
3141         toshiba_kbd_illum_available(dev);
3142         /*
3143          * Only register the LED if KBD illumination is supported
3144          * and the keyboard backlight operation mode is set to FN-Z
3145          */
3146         if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3147                 dev->kbd_led.name = "toshiba::kbd_backlight";
3148                 dev->kbd_led.max_brightness = 1;
3149                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3150                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3151                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3152                         dev->kbd_led_registered = true;
3153         }
3154
3155         ret = toshiba_touchpad_get(dev, &dummy);
3156         dev->touchpad_supported = !ret;
3157
3158         toshiba_accelerometer_available(dev);
3159         if (dev->accelerometer_supported) {
3160                 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3161                 if (!dev->indio_dev) {
3162                         pr_err("Unable to allocate iio device\n");
3163                         goto iio_error;
3164                 }
3165
3166                 pr_info("Registering Toshiba accelerometer iio device\n");
3167
3168                 dev->indio_dev->info = &toshiba_iio_accel_info;
3169                 dev->indio_dev->name = "Toshiba accelerometer";
3170                 dev->indio_dev->dev.parent = &acpi_dev->dev;
3171                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3172                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3173                 dev->indio_dev->num_channels =
3174                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3175
3176                 ret = iio_device_register(dev->indio_dev);
3177                 if (ret < 0) {
3178                         pr_err("Unable to register iio device\n");
3179                         iio_device_free(dev->indio_dev);
3180                 }
3181         }
3182 iio_error:
3183
3184         toshiba_usb_sleep_charge_available(dev);
3185
3186         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3187         dev->usb_rapid_charge_supported = !ret;
3188
3189         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3190         dev->usb_sleep_music_supported = !ret;
3191
3192         ret = toshiba_panel_power_on_get(dev, &dummy);
3193         dev->panel_power_on_supported = !ret;
3194
3195         ret = toshiba_usb_three_get(dev, &dummy);
3196         dev->usb_three_supported = !ret;
3197
3198         ret = get_video_status(dev, &dummy);
3199         dev->video_supported = !ret;
3200
3201         ret = get_fan_status(dev, &dummy);
3202         dev->fan_supported = !ret;
3203
3204         toshiba_wwan_available(dev);
3205         if (dev->wwan_supported)
3206                 toshiba_acpi_setup_wwan_rfkill(dev);
3207
3208         toshiba_cooling_method_available(dev);
3209
3210         print_supported_features(dev);
3211
3212         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3213                                  &toshiba_attr_group);
3214         if (ret) {
3215                 dev->sysfs_created = 0;
3216                 goto error;
3217         }
3218         dev->sysfs_created = !ret;
3219
3220         create_toshiba_proc_entries(dev);
3221
3222         toshiba_acpi = dev;
3223
3224         return 0;
3225
3226 error:
3227         toshiba_acpi_remove(acpi_dev);
3228         return ret;
3229 }
3230
3231 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3232 {
3233         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3234
3235         switch (event) {
3236         case 0x80: /* Hotkeys and some system events */
3237                 /*
3238                  * Machines with this WMI GUID aren't supported due to bugs in
3239                  * their AML.
3240                  *
3241                  * Return silently to avoid triggering a netlink event.
3242                  */
3243                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3244                         return;
3245                 toshiba_acpi_process_hotkeys(dev);
3246                 break;
3247         case 0x81: /* Dock events */
3248         case 0x82:
3249         case 0x83:
3250                 pr_info("Dock event received %x\n", event);
3251                 break;
3252         case 0x88: /* Thermal events */
3253                 pr_info("Thermal event received\n");
3254                 break;
3255         case 0x8f: /* LID closed */
3256         case 0x90: /* LID is closed and Dock has been ejected */
3257                 break;
3258         case 0x8c: /* SATA power events */
3259         case 0x8b:
3260                 pr_info("SATA power event received %x\n", event);
3261                 break;
3262         case 0x92: /* Keyboard backlight mode changed */
3263                 toshiba_acpi->kbd_event_generated = true;
3264                 /* Update sysfs entries */
3265                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3266                                        &toshiba_attr_group))
3267                         pr_err("Unable to update sysfs entries\n");
3268                 break;
3269         case 0x85: /* Unknown */
3270         case 0x8d: /* Unknown */
3271         case 0x8e: /* Unknown */
3272         case 0x94: /* Unknown */
3273         case 0x95: /* Unknown */
3274         default:
3275                 pr_info("Unknown event received %x\n", event);
3276                 break;
3277         }
3278
3279         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3280                                         dev_name(&acpi_dev->dev),
3281                                         event, (event == 0x80) ?
3282                                         dev->last_key_event : 0);
3283 }
3284
3285 #ifdef CONFIG_PM_SLEEP
3286 static int toshiba_acpi_suspend(struct device *device)
3287 {
3288         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3289
3290         if (dev->hotkey_dev) {
3291                 u32 result;
3292
3293                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3294                 if (result != TOS_SUCCESS)
3295                         pr_info("Unable to disable hotkeys\n");
3296         }
3297
3298         return 0;
3299 }
3300
3301 static int toshiba_acpi_resume(struct device *device)
3302 {
3303         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3304
3305         if (dev->hotkey_dev) {
3306                 if (toshiba_acpi_enable_hotkeys(dev))
3307                         pr_info("Unable to re-enable hotkeys\n");
3308         }
3309
3310         if (dev->wwan_rfk) {
3311                 if (!toshiba_wireless_status(dev))
3312                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3313         }
3314
3315         return 0;
3316 }
3317 #endif
3318
3319 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3320                          toshiba_acpi_suspend, toshiba_acpi_resume);
3321
3322 static struct acpi_driver toshiba_acpi_driver = {
3323         .name   = "Toshiba ACPI driver",
3324         .owner  = THIS_MODULE,
3325         .ids    = toshiba_device_ids,
3326         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3327         .ops    = {
3328                 .add            = toshiba_acpi_add,
3329                 .remove         = toshiba_acpi_remove,
3330                 .notify         = toshiba_acpi_notify,
3331         },
3332         .drv.pm = &toshiba_acpi_pm,
3333 };
3334
3335 static int __init toshiba_acpi_init(void)
3336 {
3337         int ret;
3338
3339         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3340         if (!toshiba_proc_dir) {
3341                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3342                 return -ENODEV;
3343         }
3344
3345         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3346         if (ret) {
3347                 pr_err("Failed to register ACPI driver: %d\n", ret);
3348                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3349         }
3350
3351         return ret;
3352 }
3353
3354 static void __exit toshiba_acpi_exit(void)
3355 {
3356         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3357         if (toshiba_proc_dir)
3358                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3359 }
3360
3361 module_init(toshiba_acpi_init);
3362 module_exit(toshiba_acpi_exit);