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/compiler.h>
  38 #include <linux/kernel.h>
  39 #include <linux/module.h>
  40 #include <linux/moduleparam.h>
  41 #include <linux/init.h>
  42 #include <linux/types.h>
  43 #include <linux/proc_fs.h>
  44 #include <linux/seq_file.h>
  45 #include <linux/backlight.h>
  46 #include <linux/input.h>
  47 #include <linux/input/sparse-keymap.h>
  48 #include <linux/leds.h>
  49 #include <linux/slab.h>
  50 #include <linux/workqueue.h>
  51 #include <linux/i8042.h>
  52 #include <linux/acpi.h>
  53 #include <linux/dmi.h>
  54 #include <linux/uaccess.h>
  55 #include <linux/miscdevice.h>
  56 #include <linux/rfkill.h>
  57 #include <linux/iio/iio.h>
  58 #include <linux/toshiba.h>
  59 #include <acpi/video.h>
  60
  61 MODULE_AUTHOR("John Belmonte");
  62 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  63 MODULE_LICENSE("GPL");
  64
  65 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  66
  67 /* Scan code for Fn key on TOS1900 models */
  68 #define TOS1900_FN_SCAN         0x6e
  69
  70 /* Toshiba ACPI method paths */
  71 #define METHOD_VIDEO_OUT        "\\_SB_.VALX.DSSX"
  72
  73 /*
  74  * The Toshiba configuration interface is composed of the HCI and the SCI,
  75  * which are defined as follows:
  76  *
  77  * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  78  * be uniform across all their models.  Ideally we would just call
  79  * dedicated ACPI methods instead of using this primitive interface.
  80  * However the ACPI methods seem to be incomplete in some areas (for
  81  * example they allow setting, but not reading, the LCD brightness value),
  82  * so this is still useful.
  83  *
  84  * SCI stands for "System Configuration Interface" which aim is to
  85  * conceal differences in hardware between different models.
  86  */
  87
  88 #define TCI_WORDS                       6
  89
  90 /* Operations */
  91 #define HCI_SET                         0xff00
  92 #define HCI_GET                         0xfe00
  93 #define SCI_OPEN                        0xf100
  94 #define SCI_CLOSE                       0xf200
  95 #define SCI_GET                         0xf300
  96 #define SCI_SET                         0xf400
  97
  98 /* Return codes */
  99 #define TOS_SUCCESS                     0x0000
 100 #define TOS_SUCCESS2                    0x0001
 101 #define TOS_OPEN_CLOSE_OK               0x0044
 102 #define TOS_FAILURE                     0x1000
 103 #define TOS_NOT_SUPPORTED               0x8000
 104 #define TOS_ALREADY_OPEN                0x8100
 105 #define TOS_NOT_OPENED                  0x8200
 106 #define TOS_INPUT_DATA_ERROR            0x8300
 107 #define TOS_WRITE_PROTECTED             0x8400
 108 #define TOS_NOT_PRESENT                 0x8600
 109 #define TOS_FIFO_EMPTY                  0x8c00
 110 #define TOS_DATA_NOT_AVAILABLE          0x8d20
 111 #define TOS_NOT_INITIALIZED             0x8d50
 112 #define TOS_NOT_INSTALLED               0x8e00
 113
 114 /* Registers */
 115 #define HCI_FAN                         0x0004
 116 #define HCI_TR_BACKLIGHT                0x0005
 117 #define HCI_SYSTEM_EVENT                0x0016
 118 #define HCI_VIDEO_OUT                   0x001c
 119 #define HCI_HOTKEY_EVENT                0x001e
 120 #define HCI_LCD_BRIGHTNESS              0x002a
 121 #define HCI_WIRELESS                    0x0056
 122 #define HCI_ACCELEROMETER               0x006d
 123 #define HCI_COOLING_METHOD              0x007f
 124 #define HCI_KBD_ILLUMINATION            0x0095
 125 #define HCI_ECO_MODE                    0x0097
 126 #define HCI_ACCELEROMETER2              0x00a6
 127 #define HCI_SYSTEM_INFO                 0xc000
 128 #define SCI_PANEL_POWER_ON              0x010d
 129 #define SCI_ILLUMINATION                0x014e
 130 #define SCI_USB_SLEEP_CHARGE            0x0150
 131 #define SCI_KBD_ILLUM_STATUS            0x015c
 132 #define SCI_USB_SLEEP_MUSIC             0x015e
 133 #define SCI_USB_THREE                   0x0169
 134 #define SCI_TOUCHPAD                    0x050e
 135 #define SCI_KBD_FUNCTION_KEYS           0x0522
 136
 137 /* Field definitions */
 138 #define HCI_ACCEL_MASK                  0x7fff
 139 #define HCI_ACCEL_DIRECTION_MASK        0x8000
 140 #define HCI_HOTKEY_DISABLE              0x0b
 141 #define HCI_HOTKEY_ENABLE               0x09
 142 #define HCI_HOTKEY_SPECIAL_FUNCTIONS    0x10
 143 #define HCI_LCD_BRIGHTNESS_BITS         3
 144 #define HCI_LCD_BRIGHTNESS_SHIFT        (16-HCI_LCD_BRIGHTNESS_BITS)
 145 #define HCI_LCD_BRIGHTNESS_LEVELS       (1 << HCI_LCD_BRIGHTNESS_BITS)
 146 #define HCI_MISC_SHIFT                  0x10
 147 #define HCI_SYSTEM_TYPE1                0x10
 148 #define HCI_SYSTEM_TYPE2                0x11
 149 #define HCI_VIDEO_OUT_LCD               0x1
 150 #define HCI_VIDEO_OUT_CRT               0x2
 151 #define HCI_VIDEO_OUT_TV                0x4
 152 #define SCI_KBD_MODE_MASK               0x1f
 153 #define SCI_KBD_MODE_FNZ                0x1
 154 #define SCI_KBD_MODE_AUTO               0x2
 155 #define SCI_KBD_MODE_ON                 0x8
 156 #define SCI_KBD_MODE_OFF                0x10
 157 #define SCI_KBD_TIME_MAX                0x3c001a
 158 #define HCI_WIRELESS_STATUS             0x1
 159 #define HCI_WIRELESS_WWAN               0x3
 160 #define HCI_WIRELESS_WWAN_STATUS        0x2000
 161 #define HCI_WIRELESS_WWAN_POWER         0x4000
 162 #define SCI_USB_CHARGE_MODE_MASK        0xff
 163 #define SCI_USB_CHARGE_DISABLED         0x00
 164 #define SCI_USB_CHARGE_ALTERNATE        0x09
 165 #define SCI_USB_CHARGE_TYPICAL          0x11
 166 #define SCI_USB_CHARGE_AUTO             0x21
 167 #define SCI_USB_CHARGE_BAT_MASK         0x7
 168 #define SCI_USB_CHARGE_BAT_LVL_OFF      0x1
 169 #define SCI_USB_CHARGE_BAT_LVL_ON       0x4
 170 #define SCI_USB_CHARGE_BAT_LVL          0x0200
 171 #define SCI_USB_CHARGE_RAPID_DSP        0x0300
 172
 173 struct toshiba_acpi_dev {
 174         struct acpi_device *acpi_dev;
 175         const char *method_hci;
 176         struct input_dev *hotkey_dev;
 177         struct work_struct hotkey_work;
 178         struct backlight_device *backlight_dev;
 179         struct led_classdev led_dev;
 180         struct led_classdev kbd_led;
 181         struct led_classdev eco_led;
 182         struct miscdevice miscdev;
 183         struct rfkill *wwan_rfk;
 184         struct iio_dev *indio_dev;
 185
 186         int force_fan;
 187         int last_key_event;
 188         int key_event_valid;
 189         int kbd_type;
 190         int kbd_mode;
 191         int kbd_time;
 192         int usbsc_bat_level;
 193         int usbsc_mode_base;
 194         int hotkey_event_type;
 195         int max_cooling_method;
 196
 197         unsigned int illumination_supported:1;
 198         unsigned int video_supported:1;
 199         unsigned int fan_supported:1;
 200         unsigned int system_event_supported:1;
 201         unsigned int ntfy_supported:1;
 202         unsigned int info_supported:1;
 203         unsigned int tr_backlight_supported:1;
 204         unsigned int kbd_illum_supported:1;
 205         unsigned int touchpad_supported:1;
 206         unsigned int eco_supported:1;
 207         unsigned int accelerometer_supported:1;
 208         unsigned int usb_sleep_charge_supported:1;
 209         unsigned int usb_rapid_charge_supported:1;
 210         unsigned int usb_sleep_music_supported:1;
 211         unsigned int kbd_function_keys_supported:1;
 212         unsigned int panel_power_on_supported:1;
 213         unsigned int usb_three_supported:1;
 214         unsigned int wwan_supported:1;
 215         unsigned int cooling_method_supported:1;
 216         unsigned int sysfs_created:1;
 217         unsigned int special_functions;
 218
 219         bool kbd_event_generated;
 220         bool kbd_led_registered;
 221         bool illumination_led_registered;
 222         bool eco_led_registered;
 223         bool killswitch;
 224 };
 225
 226 static struct toshiba_acpi_dev *toshiba_acpi;
 227
 228 static bool disable_hotkeys;
 229 module_param(disable_hotkeys, bool, 0444);
 230 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 231
 232 static const struct acpi_device_id toshiba_device_ids[] = {
 233         {"TOS6200", 0},
 234         {"TOS6207", 0},
 235         {"TOS6208", 0},
 236         {"TOS1900", 0},
 237         {"", 0},
 238 };
 239 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 240
 241 static const struct key_entry toshiba_acpi_keymap[] = {
 242         { KE_KEY, 0x9e, { KEY_RFKILL } },
 243         { KE_KEY, 0x101, { KEY_MUTE } },
 244         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 245         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 246         { KE_KEY, 0x10f, { KEY_TAB } },
 247         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 248         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 249         { KE_KEY, 0x13b, { KEY_COFFEE } },
 250         { KE_KEY, 0x13c, { KEY_BATTERY } },
 251         { KE_KEY, 0x13d, { KEY_SLEEP } },
 252         { KE_KEY, 0x13e, { KEY_SUSPEND } },
 253         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 254         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 255         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 256         { KE_KEY, 0x142, { KEY_WLAN } },
 257         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 258         { KE_KEY, 0x17f, { KEY_FN } },
 259         { KE_KEY, 0xb05, { KEY_PROG2 } },
 260         { KE_KEY, 0xb06, { KEY_WWW } },
 261         { KE_KEY, 0xb07, { KEY_MAIL } },
 262         { KE_KEY, 0xb30, { KEY_STOP } },
 263         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 264         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
 265         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 266         { KE_KEY, 0xb5a, { KEY_MEDIA } },
 267         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 268         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 269         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 270         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 271         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 272         { KE_END, 0 },
 273 };
 274
 275 static const struct key_entry toshiba_acpi_alt_keymap[] = {
 276         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 277         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 278         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 279         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 280         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 281         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 282         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 283         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 284         { KE_KEY, 0x157, { KEY_MUTE } },
 285         { KE_KEY, 0x158, { KEY_WLAN } },
 286         { KE_END, 0 },
 287 };
 288
 289 /*
 290  * List of models which have a broken acpi-video backlight interface and thus
 291  * need to use the toshiba (vendor) interface instead.
 292  */
 293 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 294         {}
 295 };
 296
 297 /*
 298  * Utility
 299  */
 300
 301 static inline void _set_bit(u32 *word, u32 mask, int value)
 302 {
 303         *word = (*word & ~mask) | (mask * value);
 304 }
 305
 306 /*
 307  * ACPI interface wrappers
 308  */
 309
 310 static int write_acpi_int(const char *methodName, int val)
 311 {
 312         acpi_status status;
 313
 314         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 315         return (status == AE_OK) ? 0 : -EIO;
 316 }
 317
 318 /*
 319  * Perform a raw configuration call.  Here we don't care about input or output
 320  * buffer format.
 321  */
 322 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 323                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 324 {
 325         union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 326         struct acpi_object_list params;
 327         struct acpi_buffer results;
 328         acpi_status status;
 329         int i;
 330
 331         params.count = TCI_WORDS;
 332         params.pointer = in_objs;
 333         for (i = 0; i < TCI_WORDS; ++i) {
 334                 in_objs[i].type = ACPI_TYPE_INTEGER;
 335                 in_objs[i].integer.value = in[i];
 336         }
 337
 338         results.length = sizeof(out_objs);
 339         results.pointer = out_objs;
 340
 341         status = acpi_evaluate_object(dev->acpi_dev->handle,
 342                                       (char *)dev->method_hci, &params,
 343                                       &results);
 344         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 345                 for (i = 0; i < out_objs->package.count; ++i)
 346                         out[i] = out_objs->package.elements[i].integer.value;
 347         }
 348
 349         return status;
 350 }
 351
 352 /*
 353  * Common hci tasks
 354  *
 355  * In addition to the ACPI status, the HCI system returns a result which
 356  * may be useful (such as "not supported").
 357  */
 358
 359 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 360 {
 361         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 362         u32 out[TCI_WORDS];
 363         acpi_status status = tci_raw(dev, in, out);
 364
 365         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 366 }
 367
 368 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 369 {
 370         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 371         u32 out[TCI_WORDS];
 372         acpi_status status = tci_raw(dev, in, out);
 373
 374         if (ACPI_FAILURE(status))
 375                 return TOS_FAILURE;
 376
 377         *out1 = out[2];
 378
 379         return out[0];
 380 }
 381
 382 /*
 383  * Common sci tasks
 384  */
 385
 386 static int sci_open(struct toshiba_acpi_dev *dev)
 387 {
 388         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 389         u32 out[TCI_WORDS];
 390         acpi_status status = tci_raw(dev, in, out);
 391
 392         if  (ACPI_FAILURE(status)) {
 393                 pr_err("ACPI call to open SCI failed\n");
 394                 return 0;
 395         }
 396
 397         if (out[0] == TOS_OPEN_CLOSE_OK) {
 398                 return 1;
 399         } else if (out[0] == TOS_ALREADY_OPEN) {
 400                 pr_info("Toshiba SCI already opened\n");
 401                 return 1;
 402         } else if (out[0] == TOS_NOT_SUPPORTED) {
 403                 /*
 404                  * Some BIOSes do not have the SCI open/close functions
 405                  * implemented and return 0x8000 (Not Supported), failing to
 406                  * register some supported features.
 407                  *
 408                  * Simply return 1 if we hit those affected laptops to make the
 409                  * supported features work.
 410                  *
 411                  * In the case that some laptops really do not support the SCI,
 412                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 413                  * and thus, not registering support for the queried feature.
 414                  */
 415                 return 1;
 416         } else if (out[0] == TOS_NOT_PRESENT) {
 417                 pr_info("Toshiba SCI is not present\n");
 418         }
 419
 420         return 0;
 421 }
 422
 423 static void sci_close(struct toshiba_acpi_dev *dev)
 424 {
 425         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 426         u32 out[TCI_WORDS];
 427         acpi_status status = tci_raw(dev, in, out);
 428
 429         if (ACPI_FAILURE(status)) {
 430                 pr_err("ACPI call to close SCI failed\n");
 431                 return;
 432         }
 433
 434         if (out[0] == TOS_OPEN_CLOSE_OK)
 435                 return;
 436         else if (out[0] == TOS_NOT_OPENED)
 437                 pr_info("Toshiba SCI not opened\n");
 438         else if (out[0] == TOS_NOT_PRESENT)
 439                 pr_info("Toshiba SCI is not present\n");
 440 }
 441
 442 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 443 {
 444         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 445         u32 out[TCI_WORDS];
 446         acpi_status status = tci_raw(dev, in, out);
 447
 448         if (ACPI_FAILURE(status))
 449                 return TOS_FAILURE;
 450
 451         *out1 = out[2];
 452
 453         return out[0];
 454 }
 455
 456 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 457 {
 458         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 459         u32 out[TCI_WORDS];
 460         acpi_status status = tci_raw(dev, in, out);
 461
 462         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 463 }
 464
 465 /* Illumination support */
 466 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 467 {
 468         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 469         u32 out[TCI_WORDS];
 470         acpi_status status;
 471
 472         dev->illumination_supported = 0;
 473         dev->illumination_led_registered = false;
 474
 475         if (!sci_open(dev))
 476                 return;
 477
 478         status = tci_raw(dev, in, out);
 479         sci_close(dev);
 480         if (ACPI_FAILURE(status)) {
 481                 pr_err("ACPI call to query Illumination support failed\n");
 482                 return;
 483         }
 484
 485         if (out[0] != TOS_SUCCESS)
 486                 return;
 487
 488         dev->illumination_supported = 1;
 489 }
 490
 491 static void toshiba_illumination_set(struct led_classdev *cdev,
 492                                      enum led_brightness brightness)
 493 {
 494         struct toshiba_acpi_dev *dev = container_of(cdev,
 495                         struct toshiba_acpi_dev, led_dev);
 496         u32 result;
 497         u32 state;
 498
 499         /* First request : initialize communication. */
 500         if (!sci_open(dev))
 501                 return;
 502
 503         /* Switch the illumination on/off */
 504         state = brightness ? 1 : 0;
 505         result = sci_write(dev, SCI_ILLUMINATION, state);
 506         sci_close(dev);
 507         if (result == TOS_FAILURE)
 508                 pr_err("ACPI call for illumination failed\n");
 509 }
 510
 511 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 512 {
 513         struct toshiba_acpi_dev *dev = container_of(cdev,
 514                         struct toshiba_acpi_dev, led_dev);
 515         u32 result;
 516         u32 state;
 517
 518         /* First request : initialize communication. */
 519         if (!sci_open(dev))
 520                 return LED_OFF;
 521
 522         /* Check the illumination */
 523         result = sci_read(dev, SCI_ILLUMINATION, &state);
 524         sci_close(dev);
 525         if (result == TOS_FAILURE) {
 526                 pr_err("ACPI call for illumination failed\n");
 527                 return LED_OFF;
 528         } else if (result != TOS_SUCCESS) {
 529                 return LED_OFF;
 530         }
 531
 532         return state ? LED_FULL : LED_OFF;
 533 }
 534
 535 /* KBD Illumination */
 536 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 537 {
 538         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 539         u32 out[TCI_WORDS];
 540         acpi_status status;
 541
 542         dev->kbd_illum_supported = 0;
 543         dev->kbd_led_registered = false;
 544         dev->kbd_event_generated = false;
 545
 546         if (!sci_open(dev))
 547                 return;
 548
 549         status = tci_raw(dev, in, out);
 550         sci_close(dev);
 551         if (ACPI_FAILURE(status)) {
 552                 pr_err("ACPI call to query kbd illumination support failed\n");
 553                 return;
 554         }
 555
 556         if (out[0] != TOS_SUCCESS)
 557                 return;
 558
 559         /*
 560          * Check for keyboard backlight timeout max value,
 561          * previous kbd backlight implementation set this to
 562          * 0x3c0003, and now the new implementation set this
 563          * to 0x3c001a, use this to distinguish between them.
 564          */
 565         if (out[3] == SCI_KBD_TIME_MAX)
 566                 dev->kbd_type = 2;
 567         else
 568                 dev->kbd_type = 1;
 569         /* Get the current keyboard backlight mode */
 570         dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 571         /* Get the current time (1-60 seconds) */
 572         dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 573         /* Flag as supported */
 574         dev->kbd_illum_supported = 1;
 575 }
 576
 577 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 578 {
 579         u32 result;
 580
 581         if (!sci_open(dev))
 582                 return -EIO;
 583
 584         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 585         sci_close(dev);
 586         if (result == TOS_FAILURE)
 587                 pr_err("ACPI call to set KBD backlight status failed\n");
 588         else if (result == TOS_NOT_SUPPORTED)
 589                 return -ENODEV;
 590
 591         return result == TOS_SUCCESS ? 0 : -EIO;
 592 }
 593
 594 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 595 {
 596         u32 result;
 597
 598         if (!sci_open(dev))
 599                 return -EIO;
 600
 601         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 602         sci_close(dev);
 603         if (result == TOS_FAILURE)
 604                 pr_err("ACPI call to get KBD backlight status failed\n");
 605         else if (result == TOS_NOT_SUPPORTED)
 606                 return -ENODEV;
 607
 608         return result == TOS_SUCCESS ? 0 : -EIO;
 609 }
 610
 611 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 612 {
 613         struct toshiba_acpi_dev *dev = container_of(cdev,
 614                         struct toshiba_acpi_dev, kbd_led);
 615         u32 result;
 616         u32 state;
 617
 618         /* Check the keyboard backlight state */
 619         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 620         if (result == TOS_FAILURE) {
 621                 pr_err("ACPI call to get the keyboard backlight failed\n");
 622                 return LED_OFF;
 623         } else if (result != TOS_SUCCESS) {
 624                 return LED_OFF;
 625         }
 626
 627         return state ? LED_FULL : LED_OFF;
 628 }
 629
 630 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 631                                      enum led_brightness brightness)
 632 {
 633         struct toshiba_acpi_dev *dev = container_of(cdev,
 634                         struct toshiba_acpi_dev, kbd_led);
 635         u32 result;
 636         u32 state;
 637
 638         /* Set the keyboard backlight state */
 639         state = brightness ? 1 : 0;
 640         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 641         if (result == TOS_FAILURE)
 642                 pr_err("ACPI call to set KBD Illumination mode failed\n");
 643 }
 644
 645 /* TouchPad support */
 646 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 647 {
 648         u32 result;
 649
 650         if (!sci_open(dev))
 651                 return -EIO;
 652
 653         result = sci_write(dev, SCI_TOUCHPAD, state);
 654         sci_close(dev);
 655         if (result == TOS_FAILURE)
 656                 pr_err("ACPI call to set the touchpad failed\n");
 657         else if (result == TOS_NOT_SUPPORTED)
 658                 return -ENODEV;
 659
 660         return result == TOS_SUCCESS ? 0 : -EIO;
 661 }
 662
 663 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 664 {
 665         u32 result;
 666
 667         if (!sci_open(dev))
 668                 return -EIO;
 669
 670         result = sci_read(dev, SCI_TOUCHPAD, state);
 671         sci_close(dev);
 672         if (result == TOS_FAILURE)
 673                 pr_err("ACPI call to query the touchpad failed\n");
 674         else if (result == TOS_NOT_SUPPORTED)
 675                 return -ENODEV;
 676
 677         return result == TOS_SUCCESS ? 0 : -EIO;
 678 }
 679
 680 /* Eco Mode support */
 681 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 682 {
 683         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 684         u32 out[TCI_WORDS];
 685         acpi_status status;
 686
 687         dev->eco_supported = 0;
 688         dev->eco_led_registered = false;
 689
 690         status = tci_raw(dev, in, out);
 691         if (ACPI_FAILURE(status)) {
 692                 pr_err("ACPI call to get ECO led failed\n");
 693                 return;
 694         }
 695
 696         if (out[0] == TOS_INPUT_DATA_ERROR) {
 697                 /*
 698                  * If we receive 0x8300 (Input Data Error), it means that the
 699                  * LED device is present, but that we just screwed the input
 700                  * parameters.
 701                  *
 702                  * Let's query the status of the LED to see if we really have a
 703                  * success response, indicating the actual presense of the LED,
 704                  * bail out otherwise.
 705                  */
 706                 in[3] = 1;
 707                 status = tci_raw(dev, in, out);
 708                 if (ACPI_FAILURE(status)) {
 709                         pr_err("ACPI call to get ECO led failed\n");
 710                         return;
 711                 }
 712
 713                 if (out[0] != TOS_SUCCESS)
 714                         return;
 715
 716                 dev->eco_supported = 1;
 717         }
 718 }
 719
 720 static enum led_brightness
 721 toshiba_eco_mode_get_status(struct led_classdev *cdev)
 722 {
 723         struct toshiba_acpi_dev *dev = container_of(cdev,
 724                         struct toshiba_acpi_dev, eco_led);
 725         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 726         u32 out[TCI_WORDS];
 727         acpi_status status;
 728
 729         status = tci_raw(dev, in, out);
 730         if (ACPI_FAILURE(status)) {
 731                 pr_err("ACPI call to get ECO led failed\n");
 732                 return LED_OFF;
 733         }
 734
 735         if (out[0] != TOS_SUCCESS)
 736                 return LED_OFF;
 737
 738         return out[2] ? LED_FULL : LED_OFF;
 739 }
 740
 741 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 742                                      enum led_brightness brightness)
 743 {
 744         struct toshiba_acpi_dev *dev = container_of(cdev,
 745                         struct toshiba_acpi_dev, eco_led);
 746         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 747         u32 out[TCI_WORDS];
 748         acpi_status status;
 749
 750         /* Switch the Eco Mode led on/off */
 751         in[2] = (brightness) ? 1 : 0;
 752         status = tci_raw(dev, in, out);
 753         if (ACPI_FAILURE(status))
 754                 pr_err("ACPI call to set ECO led failed\n");
 755 }
 756
 757 /* Accelerometer support */
 758 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 759 {
 760         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 761         u32 out[TCI_WORDS];
 762         acpi_status status;
 763
 764         dev->accelerometer_supported = 0;
 765
 766         /*
 767          * Check if the accelerometer call exists,
 768          * this call also serves as initialization
 769          */
 770         status = tci_raw(dev, in, out);
 771         if (ACPI_FAILURE(status)) {
 772                 pr_err("ACPI call to query the accelerometer failed\n");
 773                 return;
 774         }
 775
 776         if (out[0] != TOS_SUCCESS)
 777                 return;
 778
 779         dev->accelerometer_supported = 1;
 780 }
 781
 782 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 783                                      u32 *xy, u32 *z)
 784 {
 785         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 786         u32 out[TCI_WORDS];
 787         acpi_status status;
 788
 789         /* Check the Accelerometer status */
 790         status = tci_raw(dev, in, out);
 791         if (ACPI_FAILURE(status)) {
 792                 pr_err("ACPI call to query the accelerometer failed\n");
 793                 return -EIO;
 794         }
 795
 796         if (out[0] == TOS_NOT_SUPPORTED)
 797                 return -ENODEV;
 798
 799         if (out[0] != TOS_SUCCESS)
 800                 return -EIO;
 801
 802         *xy = out[2];
 803         *z = out[4];
 804
 805         return 0;
 806 }
 807
 808 /* Sleep (Charge and Music) utilities support */
 809 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 810 {
 811         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 812         u32 out[TCI_WORDS];
 813         acpi_status status;
 814
 815         dev->usb_sleep_charge_supported = 0;
 816
 817         if (!sci_open(dev))
 818                 return;
 819
 820         status = tci_raw(dev, in, out);
 821         if (ACPI_FAILURE(status)) {
 822                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 823                 sci_close(dev);
 824                 return;
 825         }
 826
 827         if (out[0] != TOS_SUCCESS) {
 828                 sci_close(dev);
 829                 return;
 830         }
 831
 832         dev->usbsc_mode_base = out[4];
 833
 834         in[5] = SCI_USB_CHARGE_BAT_LVL;
 835         status = tci_raw(dev, in, out);
 836         sci_close(dev);
 837         if (ACPI_FAILURE(status)) {
 838                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 839                 return;
 840         }
 841
 842         if (out[0] != TOS_SUCCESS)
 843                 return;
 844
 845         dev->usbsc_bat_level = out[2];
 846         /* Flag as supported */
 847         dev->usb_sleep_charge_supported = 1;
 848 }
 849
 850 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 851                                         u32 *mode)
 852 {
 853         u32 result;
 854
 855         if (!sci_open(dev))
 856                 return -EIO;
 857
 858         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 859         sci_close(dev);
 860         if (result == TOS_FAILURE)
 861                 pr_err("ACPI call to set USB S&C mode failed\n");
 862         else if (result == TOS_NOT_SUPPORTED)
 863                 return -ENODEV;
 864
 865         return result == TOS_SUCCESS ? 0 : -EIO;
 866 }
 867
 868 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 869                                         u32 mode)
 870 {
 871         u32 result;
 872
 873         if (!sci_open(dev))
 874                 return -EIO;
 875
 876         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 877         sci_close(dev);
 878         if (result == TOS_FAILURE)
 879                 pr_err("ACPI call to set USB S&C mode failed\n");
 880         else if (result == TOS_NOT_SUPPORTED)
 881                 return -ENODEV;
 882
 883         return result == TOS_SUCCESS ? 0 : -EIO;
 884 }
 885
 886 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 887                                               u32 *mode)
 888 {
 889         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 890         u32 out[TCI_WORDS];
 891         acpi_status status;
 892
 893         if (!sci_open(dev))
 894                 return -EIO;
 895
 896         in[5] = SCI_USB_CHARGE_BAT_LVL;
 897         status = tci_raw(dev, in, out);
 898         sci_close(dev);
 899         if (ACPI_FAILURE(status)) {
 900                 pr_err("ACPI call to get USB S&C battery level failed\n");
 901                 return -EIO;
 902         }
 903
 904         if (out[0] == TOS_NOT_SUPPORTED)
 905                 return -ENODEV;
 906
 907         if (out[0] != TOS_SUCCESS)
 908                 return -EIO;
 909
 910         *mode = out[2];
 911
 912         return 0;
 913
 914 }
 915
 916 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 917                                               u32 mode)
 918 {
 919         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 920         u32 out[TCI_WORDS];
 921         acpi_status status;
 922
 923         if (!sci_open(dev))
 924                 return -EIO;
 925
 926         in[2] = mode;
 927         in[5] = SCI_USB_CHARGE_BAT_LVL;
 928         status = tci_raw(dev, in, out);
 929         sci_close(dev);
 930         if (ACPI_FAILURE(status)) {
 931                 pr_err("ACPI call to set USB S&C battery level failed\n");
 932                 return -EIO;
 933         }
 934
 935         if (out[0] == TOS_NOT_SUPPORTED)
 936                 return -ENODEV;
 937
 938         return out[0] == TOS_SUCCESS ? 0 : -EIO;
 939 }
 940
 941 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 942                                         u32 *state)
 943 {
 944         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 945         u32 out[TCI_WORDS];
 946         acpi_status status;
 947
 948         if (!sci_open(dev))
 949                 return -EIO;
 950
 951         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 952         status = tci_raw(dev, in, out);
 953         sci_close(dev);
 954         if (ACPI_FAILURE(status)) {
 955                 pr_err("ACPI call to get USB Rapid Charge failed\n");
 956                 return -EIO;
 957         }
 958
 959         if (out[0] == TOS_NOT_SUPPORTED)
 960                 return -ENODEV;
 961
 962         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 963                 return -EIO;
 964
 965         *state = out[2];
 966
 967         return 0;
 968 }
 969
 970 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 971                                         u32 state)
 972 {
 973         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 974         u32 out[TCI_WORDS];
 975         acpi_status status;
 976
 977         if (!sci_open(dev))
 978                 return -EIO;
 979
 980         in[2] = state;
 981         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 982         status = tci_raw(dev, in, out);
 983         sci_close(dev);
 984         if (ACPI_FAILURE(status)) {
 985                 pr_err("ACPI call to set USB Rapid Charge failed\n");
 986                 return -EIO;
 987         }
 988
 989         if (out[0] == TOS_NOT_SUPPORTED)
 990                 return -ENODEV;
 991
 992         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 993 }
 994
 995 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 996 {
 997         u32 result;
 998
 999         if (!sci_open(dev))
1000                 return -EIO;
1001
1002         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1003         sci_close(dev);
1004         if (result == TOS_FAILURE)
1005                 pr_err("ACPI call to get Sleep and Music failed\n");
1006         else if (result == TOS_NOT_SUPPORTED)
1007                 return -ENODEV;
1008
1009         return result == TOS_SUCCESS ? 0 : -EIO;
1010 }
1011
1012 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1013 {
1014         u32 result;
1015
1016         if (!sci_open(dev))
1017                 return -EIO;
1018
1019         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1020         sci_close(dev);
1021         if (result == TOS_FAILURE)
1022                 pr_err("ACPI call to set Sleep and Music failed\n");
1023         else if (result == TOS_NOT_SUPPORTED)
1024                 return -ENODEV;
1025
1026         return result == TOS_SUCCESS ? 0 : -EIO;
1027 }
1028
1029 /* Keyboard function keys */
1030 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1031 {
1032         u32 result;
1033
1034         if (!sci_open(dev))
1035                 return -EIO;
1036
1037         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1038         sci_close(dev);
1039         if (result == TOS_FAILURE)
1040                 pr_err("ACPI call to get KBD function keys failed\n");
1041         else if (result == TOS_NOT_SUPPORTED)
1042                 return -ENODEV;
1043
1044         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1045 }
1046
1047 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1048 {
1049         u32 result;
1050
1051         if (!sci_open(dev))
1052                 return -EIO;
1053
1054         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1055         sci_close(dev);
1056         if (result == TOS_FAILURE)
1057                 pr_err("ACPI call to set KBD function keys failed\n");
1058         else if (result == TOS_NOT_SUPPORTED)
1059                 return -ENODEV;
1060
1061         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1062 }
1063
1064 /* Panel Power ON */
1065 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1066 {
1067         u32 result;
1068
1069         if (!sci_open(dev))
1070                 return -EIO;
1071
1072         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1073         sci_close(dev);
1074         if (result == TOS_FAILURE)
1075                 pr_err("ACPI call to get Panel Power ON failed\n");
1076         else if (result == TOS_NOT_SUPPORTED)
1077                 return -ENODEV;
1078
1079         return result == TOS_SUCCESS ? 0 : -EIO;
1080 }
1081
1082 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1083 {
1084         u32 result;
1085
1086         if (!sci_open(dev))
1087                 return -EIO;
1088
1089         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1090         sci_close(dev);
1091         if (result == TOS_FAILURE)
1092                 pr_err("ACPI call to set Panel Power ON failed\n");
1093         else if (result == TOS_NOT_SUPPORTED)
1094                 return -ENODEV;
1095
1096         return result == TOS_SUCCESS ? 0 : -EIO;
1097 }
1098
1099 /* USB Three */
1100 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1101 {
1102         u32 result;
1103
1104         if (!sci_open(dev))
1105                 return -EIO;
1106
1107         result = sci_read(dev, SCI_USB_THREE, state);
1108         sci_close(dev);
1109         if (result == TOS_FAILURE)
1110                 pr_err("ACPI call to get USB 3 failed\n");
1111         else if (result == TOS_NOT_SUPPORTED)
1112                 return -ENODEV;
1113
1114         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1115 }
1116
1117 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1118 {
1119         u32 result;
1120
1121         if (!sci_open(dev))
1122                 return -EIO;
1123
1124         result = sci_write(dev, SCI_USB_THREE, state);
1125         sci_close(dev);
1126         if (result == TOS_FAILURE)
1127                 pr_err("ACPI call to set USB 3 failed\n");
1128         else if (result == TOS_NOT_SUPPORTED)
1129                 return -ENODEV;
1130
1131         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1132 }
1133
1134 /* Hotkey Event type */
1135 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1136                                          u32 *type)
1137 {
1138         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1139         u32 out[TCI_WORDS];
1140         acpi_status status;
1141
1142         status = tci_raw(dev, in, out);
1143         if (ACPI_FAILURE(status)) {
1144                 pr_err("ACPI call to get System type failed\n");
1145                 return -EIO;
1146         }
1147
1148         if (out[0] == TOS_NOT_SUPPORTED)
1149                 return -ENODEV;
1150
1151         if (out[0] != TOS_SUCCESS)
1152                 return -EIO;
1153
1154         *type = out[3];
1155
1156         return 0;
1157 }
1158
1159 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1160 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1161 {
1162         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1163         u32 out[TCI_WORDS];
1164         acpi_status status;
1165
1166         in[3] = HCI_WIRELESS_STATUS;
1167         status = tci_raw(dev, in, out);
1168
1169         if (ACPI_FAILURE(status)) {
1170                 pr_err("ACPI call to get Wireless status failed\n");
1171                 return -EIO;
1172         }
1173
1174         if (out[0] == TOS_NOT_SUPPORTED)
1175                 return -ENODEV;
1176
1177         if (out[0] != TOS_SUCCESS)
1178                 return -EIO;
1179
1180         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1181
1182         return 0;
1183 }
1184
1185 /* WWAN */
1186 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1187 {
1188         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1189         u32 out[TCI_WORDS];
1190         acpi_status status;
1191
1192         dev->wwan_supported = 0;
1193
1194         /*
1195          * WWAN support can be queried by setting the in[3] value to
1196          * HCI_WIRELESS_WWAN (0x03).
1197          *
1198          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1199          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1200          *
1201          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1202          * or TOS_NOT_SUPPORTED (0x8000).
1203          */
1204         in[3] = HCI_WIRELESS_WWAN;
1205         status = tci_raw(dev, in, out);
1206         if (ACPI_FAILURE(status)) {
1207                 pr_err("ACPI call to get WWAN status failed\n");
1208                 return;
1209         }
1210
1211         if (out[0] != TOS_SUCCESS)
1212                 return;
1213
1214         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1215 }
1216
1217 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1218 {
1219         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1220         u32 out[TCI_WORDS];
1221         acpi_status status;
1222
1223         in[3] = HCI_WIRELESS_WWAN_STATUS;
1224         status = tci_raw(dev, in, out);
1225         if (ACPI_FAILURE(status)) {
1226                 pr_err("ACPI call to set WWAN status failed\n");
1227                 return -EIO;
1228         }
1229
1230         if (out[0] == TOS_NOT_SUPPORTED)
1231                 return -ENODEV;
1232
1233         if (out[0] != TOS_SUCCESS)
1234                 return -EIO;
1235
1236         /*
1237          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1238          * (de)activate the device, but some others need the
1239          * HCI_WIRELESS_WWAN_POWER call as well.
1240          */
1241         in[3] = HCI_WIRELESS_WWAN_POWER;
1242         status = tci_raw(dev, in, out);
1243         if (ACPI_FAILURE(status)) {
1244                 pr_err("ACPI call to set WWAN power failed\n");
1245                 return -EIO;
1246         }
1247
1248         if (out[0] == TOS_NOT_SUPPORTED)
1249                 return -ENODEV;
1250
1251         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1252 }
1253
1254 /* Cooling Method */
1255 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1256 {
1257         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1258         u32 out[TCI_WORDS];
1259         acpi_status status;
1260
1261         dev->cooling_method_supported = 0;
1262         dev->max_cooling_method = 0;
1263
1264         status = tci_raw(dev, in, out);
1265         if (ACPI_FAILURE(status)) {
1266                 pr_err("ACPI call to get Cooling Method failed\n");
1267                 return;
1268         }
1269
1270         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1271                 return;
1272
1273         dev->cooling_method_supported = 1;
1274         dev->max_cooling_method = out[3];
1275 }
1276
1277 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1278 {
1279         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1280
1281         if (result == TOS_FAILURE)
1282                 pr_err("ACPI call to get Cooling Method failed\n");
1283
1284         if (result == TOS_NOT_SUPPORTED)
1285                 return -ENODEV;
1286
1287         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1288 }
1289
1290 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1291 {
1292         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1293
1294         if (result == TOS_FAILURE)
1295                 pr_err("ACPI call to set Cooling Method failed\n");
1296
1297         if (result == TOS_NOT_SUPPORTED)
1298                 return -ENODEV;
1299
1300         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1301 }
1302
1303 /* Transflective Backlight */
1304 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1305 {
1306         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1307
1308         if (result == TOS_FAILURE)
1309                 pr_err("ACPI call to get Transflective Backlight failed\n");
1310         else if (result == TOS_NOT_SUPPORTED)
1311                 return -ENODEV;
1312
1313         return result == TOS_SUCCESS ? 0 : -EIO;
1314 }
1315
1316 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1317 {
1318         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1319
1320         if (result == TOS_FAILURE)
1321                 pr_err("ACPI call to set Transflective Backlight failed\n");
1322         else if (result == TOS_NOT_SUPPORTED)
1323                 return -ENODEV;
1324
1325         return result == TOS_SUCCESS ? 0 : -EIO;
1326 }
1327
1328 static struct proc_dir_entry *toshiba_proc_dir;
1329
1330 /* LCD Brightness */
1331 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1332 {
1333         int brightness = 0;
1334         u32 result;
1335         u32 value;
1336
1337         if (dev->tr_backlight_supported) {
1338                 int ret = get_tr_backlight_status(dev, &value);
1339
1340                 if (ret)
1341                         return ret;
1342                 if (value)
1343                         return 0;
1344                 brightness++;
1345         }
1346
1347         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1348         if (result == TOS_FAILURE)
1349                 pr_err("ACPI call to get LCD Brightness failed\n");
1350         else if (result == TOS_NOT_SUPPORTED)
1351                 return -ENODEV;
1352
1353         return result == TOS_SUCCESS ?
1354                         brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1355                         -EIO;
1356 }
1357
1358 static int get_lcd_brightness(struct backlight_device *bd)
1359 {
1360         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1361
1362         return __get_lcd_brightness(dev);
1363 }
1364
1365 static int lcd_proc_show(struct seq_file *m, void *v)
1366 {
1367         struct toshiba_acpi_dev *dev = m->private;
1368         int levels;
1369         int value;
1370
1371         if (!dev->backlight_dev)
1372                 return -ENODEV;
1373
1374         levels = dev->backlight_dev->props.max_brightness + 1;
1375         value = get_lcd_brightness(dev->backlight_dev);
1376         if (value < 0) {
1377                 pr_err("Error reading LCD brightness\n");
1378                 return value;
1379         }
1380
1381         seq_printf(m, "brightness:              %d\n", value);
1382         seq_printf(m, "brightness_levels:       %d\n", levels);
1383
1384         return 0;
1385 }
1386
1387 static int lcd_proc_open(struct inode *inode, struct file *file)
1388 {
1389         return single_open(file, lcd_proc_show, PDE_DATA(inode));
1390 }
1391
1392 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1393 {
1394         u32 result;
1395
1396         if (dev->tr_backlight_supported) {
1397                 int ret = set_tr_backlight_status(dev, !value);
1398
1399                 if (ret)
1400                         return ret;
1401                 if (value)
1402                         value--;
1403         }
1404
1405         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1406         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1407         if (result == TOS_FAILURE)
1408                 pr_err("ACPI call to set LCD Brightness failed\n");
1409         else if (result == TOS_NOT_SUPPORTED)
1410                 return -ENODEV;
1411
1412         return result == TOS_SUCCESS ? 0 : -EIO;
1413 }
1414
1415 static int set_lcd_status(struct backlight_device *bd)
1416 {
1417         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1418
1419         return set_lcd_brightness(dev, bd->props.brightness);
1420 }
1421
1422 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1423                               size_t count, loff_t *pos)
1424 {
1425         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1426         char cmd[42];
1427         size_t len;
1428         int levels;
1429         int value;
1430
1431         len = min(count, sizeof(cmd) - 1);
1432         if (copy_from_user(cmd, buf, len))
1433                 return -EFAULT;
1434         cmd[len] = '\0';
1435
1436         levels = dev->backlight_dev->props.max_brightness + 1;
1437         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1438             value < 0 && value > levels)
1439                 return -EINVAL;
1440
1441         if (set_lcd_brightness(dev, value))
1442                 return -EIO;
1443
1444         return count;
1445 }
1446
1447 static const struct file_operations lcd_proc_fops = {
1448         .owner          = THIS_MODULE,
1449         .open           = lcd_proc_open,
1450         .read           = seq_read,
1451         .llseek         = seq_lseek,
1452         .release        = single_release,
1453         .write          = lcd_proc_write,
1454 };
1455
1456 /* Video-Out */
1457 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1458 {
1459         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1460
1461         if (result == TOS_FAILURE)
1462                 pr_err("ACPI call to get Video-Out failed\n");
1463         else if (result == TOS_NOT_SUPPORTED)
1464                 return -ENODEV;
1465
1466         return result == TOS_SUCCESS ? 0 : -EIO;
1467 }
1468
1469 static int video_proc_show(struct seq_file *m, void *v)
1470 {
1471         struct toshiba_acpi_dev *dev = m->private;
1472         int is_lcd, is_crt, is_tv;
1473         u32 value;
1474
1475         if (get_video_status(dev, &value))
1476                 return -EIO;
1477
1478         is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1479         is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1480         is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1481
1482         seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1483         seq_printf(m, "crt_out:                 %d\n", is_crt);
1484         seq_printf(m, "tv_out:                  %d\n", is_tv);
1485
1486         return 0;
1487 }
1488
1489 static int video_proc_open(struct inode *inode, struct file *file)
1490 {
1491         return single_open(file, video_proc_show, PDE_DATA(inode));
1492 }
1493
1494 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1495                                 size_t count, loff_t *pos)
1496 {
1497         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1498         char *buffer;
1499         char *cmd;
1500         int lcd_out = -1, crt_out = -1, tv_out = -1;
1501         int remain = count;
1502         int value;
1503         int ret;
1504         u32 video_out;
1505
1506         cmd = memdup_user_nul(buf, count);
1507         if (IS_ERR(cmd))
1508                 return PTR_ERR(cmd);
1509
1510         buffer = cmd;
1511
1512         /*
1513          * Scan expression.  Multiple expressions may be delimited with ;
1514          * NOTE: To keep scanning simple, invalid fields are ignored.
1515          */
1516         while (remain) {
1517                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1518                         lcd_out = value & 1;
1519                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1520                         crt_out = value & 1;
1521                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1522                         tv_out = value & 1;
1523                 /* Advance to one character past the next ; */
1524                 do {
1525                         ++buffer;
1526                         --remain;
1527                 } while (remain && *(buffer - 1) != ';');
1528         }
1529
1530         kfree(cmd);
1531
1532         ret = get_video_status(dev, &video_out);
1533         if (!ret) {
1534                 unsigned int new_video_out = video_out;
1535
1536                 if (lcd_out != -1)
1537                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1538                 if (crt_out != -1)
1539                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1540                 if (tv_out != -1)
1541                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1542                 /*
1543                  * To avoid unnecessary video disruption, only write the new
1544                  * video setting if something changed.
1545                  */
1546                 if (new_video_out != video_out)
1547                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1548         }
1549
1550         return ret ? -EIO : count;
1551 }
1552
1553 static const struct file_operations video_proc_fops = {
1554         .owner          = THIS_MODULE,
1555         .open           = video_proc_open,
1556         .read           = seq_read,
1557         .llseek         = seq_lseek,
1558         .release        = single_release,
1559         .write          = video_proc_write,
1560 };
1561
1562 /* Fan status */
1563 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1564 {
1565         u32 result = hci_read(dev, HCI_FAN, status);
1566
1567         if (result == TOS_FAILURE)
1568                 pr_err("ACPI call to get Fan status failed\n");
1569         else if (result == TOS_NOT_SUPPORTED)
1570                 return -ENODEV;
1571
1572         return result == TOS_SUCCESS ? 0 : -EIO;
1573 }
1574
1575 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1576 {
1577         u32 result = hci_write(dev, HCI_FAN, status);
1578
1579         if (result == TOS_FAILURE)
1580                 pr_err("ACPI call to set Fan status failed\n");
1581         else if (result == TOS_NOT_SUPPORTED)
1582                 return -ENODEV;
1583
1584         return result == TOS_SUCCESS ? 0 : -EIO;
1585 }
1586
1587 static int fan_proc_show(struct seq_file *m, void *v)
1588 {
1589         struct toshiba_acpi_dev *dev = m->private;
1590         u32 value;
1591
1592         if (get_fan_status(dev, &value))
1593                 return -EIO;
1594
1595         seq_printf(m, "running:                 %d\n", (value > 0));
1596         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1597
1598         return 0;
1599 }
1600
1601 static int fan_proc_open(struct inode *inode, struct file *file)
1602 {
1603         return single_open(file, fan_proc_show, PDE_DATA(inode));
1604 }
1605
1606 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1607                               size_t count, loff_t *pos)
1608 {
1609         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1610         char cmd[42];
1611         size_t len;
1612         int value;
1613
1614         len = min(count, sizeof(cmd) - 1);
1615         if (copy_from_user(cmd, buf, len))
1616                 return -EFAULT;
1617         cmd[len] = '\0';
1618
1619         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1620             value != 0 && value != 1)
1621                 return -EINVAL;
1622
1623         if (set_fan_status(dev, value))
1624                 return -EIO;
1625
1626         dev->force_fan = value;
1627
1628         return count;
1629 }
1630
1631 static const struct file_operations fan_proc_fops = {
1632         .owner          = THIS_MODULE,
1633         .open           = fan_proc_open,
1634         .read           = seq_read,
1635         .llseek         = seq_lseek,
1636         .release        = single_release,
1637         .write          = fan_proc_write,
1638 };
1639
1640 static int keys_proc_show(struct seq_file *m, void *v)
1641 {
1642         struct toshiba_acpi_dev *dev = m->private;
1643
1644         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1645         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1646
1647         return 0;
1648 }
1649
1650 static int keys_proc_open(struct inode *inode, struct file *file)
1651 {
1652         return single_open(file, keys_proc_show, PDE_DATA(inode));
1653 }
1654
1655 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1656                                size_t count, loff_t *pos)
1657 {
1658         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1659         char cmd[42];
1660         size_t len;
1661         int value;
1662
1663         len = min(count, sizeof(cmd) - 1);
1664         if (copy_from_user(cmd, buf, len))
1665                 return -EFAULT;
1666         cmd[len] = '\0';
1667
1668         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1669                 dev->key_event_valid = 0;
1670         else
1671                 return -EINVAL;
1672
1673         return count;
1674 }
1675
1676 static const struct file_operations keys_proc_fops = {
1677         .owner          = THIS_MODULE,
1678         .open           = keys_proc_open,
1679         .read           = seq_read,
1680         .llseek         = seq_lseek,
1681         .release        = single_release,
1682         .write          = keys_proc_write,
1683 };
1684
1685 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1686 {
1687         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1688         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1689         return 0;
1690 }
1691
1692 static int version_proc_open(struct inode *inode, struct file *file)
1693 {
1694         return single_open(file, version_proc_show, PDE_DATA(inode));
1695 }
1696
1697 static const struct file_operations version_proc_fops = {
1698         .owner          = THIS_MODULE,
1699         .open           = version_proc_open,
1700         .read           = seq_read,
1701         .llseek         = seq_lseek,
1702         .release        = single_release,
1703 };
1704
1705 /*
1706  * Proc and module init
1707  */
1708
1709 #define PROC_TOSHIBA            "toshiba"
1710
1711 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1712 {
1713         if (dev->backlight_dev)
1714                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1715                                  &lcd_proc_fops, dev);
1716         if (dev->video_supported)
1717                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1718                                  &video_proc_fops, dev);
1719         if (dev->fan_supported)
1720                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721                                  &fan_proc_fops, dev);
1722         if (dev->hotkey_dev)
1723                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724                                  &keys_proc_fops, dev);
1725         proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1726                          &version_proc_fops, dev);
1727 }
1728
1729 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1730 {
1731         if (dev->backlight_dev)
1732                 remove_proc_entry("lcd", toshiba_proc_dir);
1733         if (dev->video_supported)
1734                 remove_proc_entry("video", toshiba_proc_dir);
1735         if (dev->fan_supported)
1736                 remove_proc_entry("fan", toshiba_proc_dir);
1737         if (dev->hotkey_dev)
1738                 remove_proc_entry("keys", toshiba_proc_dir);
1739         remove_proc_entry("version", toshiba_proc_dir);
1740 }
1741
1742 static const struct backlight_ops toshiba_backlight_data = {
1743         .options = BL_CORE_SUSPENDRESUME,
1744         .get_brightness = get_lcd_brightness,
1745         .update_status  = set_lcd_status,
1746 };
1747
1748 /* Keyboard backlight work */
1749 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1750
1751 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1752
1753 /*
1754  * Sysfs files
1755  */
1756 static ssize_t version_show(struct device *dev,
1757                             struct device_attribute *attr, char *buf)
1758 {
1759         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1760 }
1761 static DEVICE_ATTR_RO(version);
1762
1763 static ssize_t fan_store(struct device *dev,
1764                          struct device_attribute *attr,
1765                          const char *buf, size_t count)
1766 {
1767         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1768         int state;
1769         int ret;
1770
1771         ret = kstrtoint(buf, 0, &state);
1772         if (ret)
1773                 return ret;
1774
1775         if (state != 0 && state != 1)
1776                 return -EINVAL;
1777
1778         ret = set_fan_status(toshiba, state);
1779         if (ret)
1780                 return ret;
1781
1782         return count;
1783 }
1784
1785 static ssize_t fan_show(struct device *dev,
1786                         struct device_attribute *attr, char *buf)
1787 {
1788         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1789         u32 value;
1790         int ret;
1791
1792         ret = get_fan_status(toshiba, &value);
1793         if (ret)
1794                 return ret;
1795
1796         return sprintf(buf, "%d\n", value);
1797 }
1798 static DEVICE_ATTR_RW(fan);
1799
1800 static ssize_t kbd_backlight_mode_store(struct device *dev,
1801                                         struct device_attribute *attr,
1802                                         const char *buf, size_t count)
1803 {
1804         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1805         int mode;
1806         int ret;
1807
1808
1809         ret = kstrtoint(buf, 0, &mode);
1810         if (ret)
1811                 return ret;
1812
1813         /* Check for supported modes depending on keyboard backlight type */
1814         if (toshiba->kbd_type == 1) {
1815                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1816                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1817                         return -EINVAL;
1818         } else if (toshiba->kbd_type == 2) {
1819                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1820                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1821                     mode != SCI_KBD_MODE_OFF)
1822                         return -EINVAL;
1823         }
1824
1825         /*
1826          * Set the Keyboard Backlight Mode where:
1827          *      Auto - KBD backlight turns off automatically in given time
1828          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1829          *      ON   - KBD backlight is always on
1830          *      OFF  - KBD backlight is always off
1831          */
1832
1833         /* Only make a change if the actual mode has changed */
1834         if (toshiba->kbd_mode != mode) {
1835                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1836                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1837
1838                 /* OR the "base time" to the actual method format */
1839                 if (toshiba->kbd_type == 1) {
1840                         /* Type 1 requires the current mode */
1841                         time |= toshiba->kbd_mode;
1842                 } else if (toshiba->kbd_type == 2) {
1843                         /* Type 2 requires the desired mode */
1844                         time |= mode;
1845                 }
1846
1847                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1848                 if (ret)
1849                         return ret;
1850
1851                 toshiba->kbd_mode = mode;
1852
1853                 /*
1854                  * Some laptop models with the second generation backlit
1855                  * keyboard (type 2) do not generate the keyboard backlight
1856                  * changed event (0x92), and thus, the driver will never update
1857                  * the sysfs entries.
1858                  *
1859                  * The event is generated right when changing the keyboard
1860                  * backlight mode and the *notify function will set the
1861                  * kbd_event_generated to true.
1862                  *
1863                  * In case the event is not generated, schedule the keyboard
1864                  * backlight work to update the sysfs entries and emulate the
1865                  * event via genetlink.
1866                  */
1867                 if (toshiba->kbd_type == 2 &&
1868                     !toshiba_acpi->kbd_event_generated)
1869                         schedule_work(&kbd_bl_work);
1870         }
1871
1872         return count;
1873 }
1874
1875 static ssize_t kbd_backlight_mode_show(struct device *dev,
1876                                        struct device_attribute *attr,
1877                                        char *buf)
1878 {
1879         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880         u32 time;
1881
1882         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1883                 return -EIO;
1884
1885         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1886 }
1887 static DEVICE_ATTR_RW(kbd_backlight_mode);
1888
1889 static ssize_t kbd_type_show(struct device *dev,
1890                              struct device_attribute *attr, char *buf)
1891 {
1892         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1893
1894         return sprintf(buf, "%d\n", toshiba->kbd_type);
1895 }
1896 static DEVICE_ATTR_RO(kbd_type);
1897
1898 static ssize_t available_kbd_modes_show(struct device *dev,
1899                                         struct device_attribute *attr,
1900                                         char *buf)
1901 {
1902         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1903
1904         if (toshiba->kbd_type == 1)
1905                 return sprintf(buf, "0x%x 0x%x\n",
1906                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1907
1908         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1909                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1910 }
1911 static DEVICE_ATTR_RO(available_kbd_modes);
1912
1913 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1914                                            struct device_attribute *attr,
1915                                            const char *buf, size_t count)
1916 {
1917         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918         int time;
1919         int ret;
1920
1921         ret = kstrtoint(buf, 0, &time);
1922         if (ret)
1923                 return ret;
1924
1925         /* Check for supported values depending on kbd_type */
1926         if (toshiba->kbd_type == 1) {
1927                 if (time < 0 || time > 60)
1928                         return -EINVAL;
1929         } else if (toshiba->kbd_type == 2) {
1930                 if (time < 1 || time > 60)
1931                         return -EINVAL;
1932         }
1933
1934         /* Set the Keyboard Backlight Timeout */
1935
1936         /* Only make a change if the actual timeout has changed */
1937         if (toshiba->kbd_time != time) {
1938                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1939                 time = time << HCI_MISC_SHIFT;
1940                 /* OR the "base time" to the actual method format */
1941                 if (toshiba->kbd_type == 1)
1942                         time |= SCI_KBD_MODE_FNZ;
1943                 else if (toshiba->kbd_type == 2)
1944                         time |= SCI_KBD_MODE_AUTO;
1945
1946                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1947                 if (ret)
1948                         return ret;
1949
1950                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1951         }
1952
1953         return count;
1954 }
1955
1956 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1957                                           struct device_attribute *attr,
1958                                           char *buf)
1959 {
1960         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961         u32 time;
1962
1963         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1964                 return -EIO;
1965
1966         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1967 }
1968 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1969
1970 static ssize_t touchpad_store(struct device *dev,
1971                               struct device_attribute *attr,
1972                               const char *buf, size_t count)
1973 {
1974         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1975         int state;
1976         int ret;
1977
1978         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1979         ret = kstrtoint(buf, 0, &state);
1980         if (ret)
1981                 return ret;
1982         if (state != 0 && state != 1)
1983                 return -EINVAL;
1984
1985         ret = toshiba_touchpad_set(toshiba, state);
1986         if (ret)
1987                 return ret;
1988
1989         return count;
1990 }
1991
1992 static ssize_t touchpad_show(struct device *dev,
1993                              struct device_attribute *attr, char *buf)
1994 {
1995         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1996         u32 state;
1997         int ret;
1998
1999         ret = toshiba_touchpad_get(toshiba, &state);
2000         if (ret < 0)
2001                 return ret;
2002
2003         return sprintf(buf, "%i\n", state);
2004 }
2005 static DEVICE_ATTR_RW(touchpad);
2006
2007 static ssize_t usb_sleep_charge_show(struct device *dev,
2008                                      struct device_attribute *attr, char *buf)
2009 {
2010         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2011         u32 mode;
2012         int ret;
2013
2014         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2015         if (ret < 0)
2016                 return ret;
2017
2018         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2019 }
2020
2021 static ssize_t usb_sleep_charge_store(struct device *dev,
2022                                       struct device_attribute *attr,
2023                                       const char *buf, size_t count)
2024 {
2025         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2026         int state;
2027         u32 mode;
2028         int ret;
2029
2030         ret = kstrtoint(buf, 0, &state);
2031         if (ret)
2032                 return ret;
2033         /*
2034          * Check for supported values, where:
2035          * 0 - Disabled
2036          * 1 - Alternate (Non USB conformant devices that require more power)
2037          * 2 - Auto (USB conformant devices)
2038          * 3 - Typical
2039          */
2040         if (state != 0 && state != 1 && state != 2 && state != 3)
2041                 return -EINVAL;
2042
2043         /* Set the USB charging mode to internal value */
2044         mode = toshiba->usbsc_mode_base;
2045         if (state == 0)
2046                 mode |= SCI_USB_CHARGE_DISABLED;
2047         else if (state == 1)
2048                 mode |= SCI_USB_CHARGE_ALTERNATE;
2049         else if (state == 2)
2050                 mode |= SCI_USB_CHARGE_AUTO;
2051         else if (state == 3)
2052                 mode |= SCI_USB_CHARGE_TYPICAL;
2053
2054         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2055         if (ret)
2056                 return ret;
2057
2058         return count;
2059 }
2060 static DEVICE_ATTR_RW(usb_sleep_charge);
2061
2062 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2063                                                struct device_attribute *attr,
2064                                                char *buf)
2065 {
2066         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067         int bat_lvl, status;
2068         u32 state;
2069         int ret;
2070         int tmp;
2071
2072         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2073         if (ret < 0)
2074                 return ret;
2075
2076         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2077         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2078         status = (tmp == 0x4) ? 1 : 0;
2079         /* Determine the battery level set */
2080         bat_lvl = state >> HCI_MISC_SHIFT;
2081
2082         return sprintf(buf, "%d %d\n", status, bat_lvl);
2083 }
2084
2085 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2086                                                 struct device_attribute *attr,
2087                                                 const char *buf, size_t count)
2088 {
2089         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090         u32 status;
2091         int value;
2092         int ret;
2093         int tmp;
2094
2095         ret = kstrtoint(buf, 0, &value);
2096         if (ret)
2097                 return ret;
2098
2099         /*
2100          * Set the status of the function:
2101          * 0 - Disabled
2102          * 1-100 - Enabled
2103          */
2104         if (value < 0 || value > 100)
2105                 return -EINVAL;
2106
2107         if (value == 0) {
2108                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2109                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2110         } else {
2111                 tmp = value << HCI_MISC_SHIFT;
2112                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2113         }
2114         ret = toshiba_sleep_functions_status_set(toshiba, status);
2115         if (ret < 0)
2116                 return ret;
2117
2118         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2119
2120         return count;
2121 }
2122 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2123
2124 static ssize_t usb_rapid_charge_show(struct device *dev,
2125                                      struct device_attribute *attr, char *buf)
2126 {
2127         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2128         u32 state;
2129         int ret;
2130
2131         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2132         if (ret < 0)
2133                 return ret;
2134
2135         return sprintf(buf, "%d\n", state);
2136 }
2137
2138 static ssize_t usb_rapid_charge_store(struct device *dev,
2139                                       struct device_attribute *attr,
2140                                       const char *buf, size_t count)
2141 {
2142         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2143         int state;
2144         int ret;
2145
2146         ret = kstrtoint(buf, 0, &state);
2147         if (ret)
2148                 return ret;
2149         if (state != 0 && state != 1)
2150                 return -EINVAL;
2151
2152         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2153         if (ret)
2154                 return ret;
2155
2156         return count;
2157 }
2158 static DEVICE_ATTR_RW(usb_rapid_charge);
2159
2160 static ssize_t usb_sleep_music_show(struct device *dev,
2161                                     struct device_attribute *attr, char *buf)
2162 {
2163         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2164         u32 state;
2165         int ret;
2166
2167         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2168         if (ret < 0)
2169                 return ret;
2170
2171         return sprintf(buf, "%d\n", state);
2172 }
2173
2174 static ssize_t usb_sleep_music_store(struct device *dev,
2175                                      struct device_attribute *attr,
2176                                      const char *buf, size_t count)
2177 {
2178         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2179         int state;
2180         int ret;
2181
2182         ret = kstrtoint(buf, 0, &state);
2183         if (ret)
2184                 return ret;
2185         if (state != 0 && state != 1)
2186                 return -EINVAL;
2187
2188         ret = toshiba_usb_sleep_music_set(toshiba, state);
2189         if (ret)
2190                 return ret;
2191
2192         return count;
2193 }
2194 static DEVICE_ATTR_RW(usb_sleep_music);
2195
2196 static ssize_t kbd_function_keys_show(struct device *dev,
2197                                       struct device_attribute *attr, char *buf)
2198 {
2199         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2200         int mode;
2201         int ret;
2202
2203         ret = toshiba_function_keys_get(toshiba, &mode);
2204         if (ret < 0)
2205                 return ret;
2206
2207         return sprintf(buf, "%d\n", mode);
2208 }
2209
2210 static ssize_t kbd_function_keys_store(struct device *dev,
2211                                        struct device_attribute *attr,
2212                                        const char *buf, size_t count)
2213 {
2214         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2215         int mode;
2216         int ret;
2217
2218         ret = kstrtoint(buf, 0, &mode);
2219         if (ret)
2220                 return ret;
2221         /*
2222          * Check for the function keys mode where:
2223          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2224          * 1 - Special functions (Opposite of the above setting)
2225          */
2226         if (mode != 0 && mode != 1)
2227                 return -EINVAL;
2228
2229         ret = toshiba_function_keys_set(toshiba, mode);
2230         if (ret)
2231                 return ret;
2232
2233         pr_info("Reboot for changes to KBD Function Keys to take effect");
2234
2235         return count;
2236 }
2237 static DEVICE_ATTR_RW(kbd_function_keys);
2238
2239 static ssize_t panel_power_on_show(struct device *dev,
2240                                    struct device_attribute *attr, char *buf)
2241 {
2242         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243         u32 state;
2244         int ret;
2245
2246         ret = toshiba_panel_power_on_get(toshiba, &state);
2247         if (ret < 0)
2248                 return ret;
2249
2250         return sprintf(buf, "%d\n", state);
2251 }
2252
2253 static ssize_t panel_power_on_store(struct device *dev,
2254                                     struct device_attribute *attr,
2255                                     const char *buf, size_t count)
2256 {
2257         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258         int state;
2259         int ret;
2260
2261         ret = kstrtoint(buf, 0, &state);
2262         if (ret)
2263                 return ret;
2264         if (state != 0 && state != 1)
2265                 return -EINVAL;
2266
2267         ret = toshiba_panel_power_on_set(toshiba, state);
2268         if (ret)
2269                 return ret;
2270
2271         pr_info("Reboot for changes to Panel Power ON to take effect");
2272
2273         return count;
2274 }
2275 static DEVICE_ATTR_RW(panel_power_on);
2276
2277 static ssize_t usb_three_show(struct device *dev,
2278                               struct device_attribute *attr, char *buf)
2279 {
2280         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2281         u32 state;
2282         int ret;
2283
2284         ret = toshiba_usb_three_get(toshiba, &state);
2285         if (ret < 0)
2286                 return ret;
2287
2288         return sprintf(buf, "%d\n", state);
2289 }
2290
2291 static ssize_t usb_three_store(struct device *dev,
2292                                struct device_attribute *attr,
2293                                const char *buf, size_t count)
2294 {
2295         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2296         int state;
2297         int ret;
2298
2299         ret = kstrtoint(buf, 0, &state);
2300         if (ret)
2301                 return ret;
2302         /*
2303          * Check for USB 3 mode where:
2304          * 0 - Disabled (Acts like a USB 2 port, saving power)
2305          * 1 - Enabled
2306          */
2307         if (state != 0 && state != 1)
2308                 return -EINVAL;
2309
2310         ret = toshiba_usb_three_set(toshiba, state);
2311         if (ret)
2312                 return ret;
2313
2314         pr_info("Reboot for changes to USB 3 to take effect");
2315
2316         return count;
2317 }
2318 static DEVICE_ATTR_RW(usb_three);
2319
2320 static ssize_t cooling_method_show(struct device *dev,
2321                                    struct device_attribute *attr, char *buf)
2322 {
2323         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2324         int state;
2325         int ret;
2326
2327         ret = toshiba_cooling_method_get(toshiba, &state);
2328         if (ret < 0)
2329                 return ret;
2330
2331         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2332 }
2333
2334 static ssize_t cooling_method_store(struct device *dev,
2335                                     struct device_attribute *attr,
2336                                     const char *buf, size_t count)
2337 {
2338         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2339         int state;
2340         int ret;
2341
2342         ret = kstrtoint(buf, 0, &state);
2343         if (ret)
2344                 return ret;
2345
2346         /*
2347          * Check for supported values
2348          * Depending on the laptop model, some only support these two:
2349          * 0 - Maximum Performance
2350          * 1 - Battery Optimized
2351          *
2352          * While some others support all three methods:
2353          * 0 - Maximum Performance
2354          * 1 - Performance
2355          * 2 - Battery Optimized
2356          */
2357         if (state < 0 || state > toshiba->max_cooling_method)
2358                 return -EINVAL;
2359
2360         ret = toshiba_cooling_method_set(toshiba, state);
2361         if (ret)
2362                 return ret;
2363
2364         return count;
2365 }
2366 static DEVICE_ATTR_RW(cooling_method);
2367
2368 static struct attribute *toshiba_attributes[] = {
2369         &dev_attr_version.attr,
2370         &dev_attr_fan.attr,
2371         &dev_attr_kbd_backlight_mode.attr,
2372         &dev_attr_kbd_type.attr,
2373         &dev_attr_available_kbd_modes.attr,
2374         &dev_attr_kbd_backlight_timeout.attr,
2375         &dev_attr_touchpad.attr,
2376         &dev_attr_usb_sleep_charge.attr,
2377         &dev_attr_sleep_functions_on_battery.attr,
2378         &dev_attr_usb_rapid_charge.attr,
2379         &dev_attr_usb_sleep_music.attr,
2380         &dev_attr_kbd_function_keys.attr,
2381         &dev_attr_panel_power_on.attr,
2382         &dev_attr_usb_three.attr,
2383         &dev_attr_cooling_method.attr,
2384         NULL,
2385 };
2386
2387 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2388                                         struct attribute *attr, int idx)
2389 {
2390         struct device *dev = container_of(kobj, struct device, kobj);
2391         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2392         bool exists = true;
2393
2394         if (attr == &dev_attr_fan.attr)
2395                 exists = (drv->fan_supported) ? true : false;
2396         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2397                 exists = (drv->kbd_illum_supported) ? true : false;
2398         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2399                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2400         else if (attr == &dev_attr_touchpad.attr)
2401                 exists = (drv->touchpad_supported) ? true : false;
2402         else if (attr == &dev_attr_usb_sleep_charge.attr)
2403                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2404         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2405                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2406         else if (attr == &dev_attr_usb_rapid_charge.attr)
2407                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2408         else if (attr == &dev_attr_usb_sleep_music.attr)
2409                 exists = (drv->usb_sleep_music_supported) ? true : false;
2410         else if (attr == &dev_attr_kbd_function_keys.attr)
2411                 exists = (drv->kbd_function_keys_supported) ? true : false;
2412         else if (attr == &dev_attr_panel_power_on.attr)
2413                 exists = (drv->panel_power_on_supported) ? true : false;
2414         else if (attr == &dev_attr_usb_three.attr)
2415                 exists = (drv->usb_three_supported) ? true : false;
2416         else if (attr == &dev_attr_cooling_method.attr)
2417                 exists = (drv->cooling_method_supported) ? true : false;
2418
2419         return exists ? attr->mode : 0;
2420 }
2421
2422 static const struct attribute_group toshiba_attr_group = {
2423         .is_visible = toshiba_sysfs_is_visible,
2424         .attrs = toshiba_attributes,
2425 };
2426
2427 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2428 {
2429         struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2430
2431         /* Update the sysfs entries */
2432         if (sysfs_update_group(&acpi_dev->dev.kobj,
2433                                &toshiba_attr_group))
2434                 pr_err("Unable to update sysfs entries\n");
2435
2436         /* Emulate the keyboard backlight event */
2437         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2438                                         dev_name(&acpi_dev->dev),
2439                                         0x92, 0);
2440 }
2441
2442 /*
2443  * IIO device
2444  */
2445
2446 enum toshiba_iio_accel_chan {
2447         AXIS_X,
2448         AXIS_Y,
2449         AXIS_Z
2450 };
2451
2452 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2453 {
2454         u32 xyval, zval;
2455         int ret;
2456
2457         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2458         if (ret < 0)
2459                 return ret;
2460
2461         switch (chan) {
2462         case AXIS_X:
2463                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2464                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2465         case AXIS_Y:
2466                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2467                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2468                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2469         case AXIS_Z:
2470                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2471                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2472         }
2473
2474         return ret;
2475 }
2476
2477 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2478                                       struct iio_chan_spec const *chan,
2479                                       int *val, int *val2, long mask)
2480 {
2481         int ret;
2482
2483         switch (mask) {
2484         case IIO_CHAN_INFO_RAW:
2485                 ret = toshiba_iio_accel_get_axis(chan->channel);
2486                 if (ret == -EIO || ret == -ENODEV)
2487                         return ret;
2488
2489                 *val = ret;
2490
2491                 return IIO_VAL_INT;
2492         }
2493
2494         return -EINVAL;
2495 }
2496
2497 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2498         .type = IIO_ACCEL, \
2499         .modified = 1, \
2500         .channel = chan, \
2501         .channel2 = IIO_MOD_##axis, \
2502         .output = 1, \
2503         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2504 }
2505
2506 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2507         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2508         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2509         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2510 };
2511
2512 static const struct iio_info toshiba_iio_accel_info = {
2513         .driver_module = THIS_MODULE,
2514         .read_raw = &toshiba_iio_accel_read_raw,
2515 };
2516
2517 /*
2518  * Misc device
2519  */
2520 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2521 {
2522         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2523                               regs->edx, regs->esi, regs->edi };
2524         u32 out[TCI_WORDS];
2525         acpi_status status;
2526
2527         status = tci_raw(toshiba_acpi, in, out);
2528         if (ACPI_FAILURE(status)) {
2529                 pr_err("ACPI call to query SMM registers failed\n");
2530                 return -EIO;
2531         }
2532
2533         /* Fillout the SMM struct with the TCI call results */
2534         regs->eax = out[0];
2535         regs->ebx = out[1];
2536         regs->ecx = out[2];
2537         regs->edx = out[3];
2538         regs->esi = out[4];
2539         regs->edi = out[5];
2540
2541         return 0;
2542 }
2543
2544 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2545                                unsigned long arg)
2546 {
2547         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2548         SMMRegisters regs;
2549         int ret;
2550
2551         if (!argp)
2552                 return -EINVAL;
2553
2554         switch (cmd) {
2555         case TOSH_SMM:
2556                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2557                         return -EFAULT;
2558                 ret = toshiba_acpi_smm_bridge(&regs);
2559                 if (ret)
2560                         return ret;
2561                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2562                         return -EFAULT;
2563                 break;
2564         case TOSHIBA_ACPI_SCI:
2565                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2566                         return -EFAULT;
2567                 /* Ensure we are being called with a SCI_{GET, SET} register */
2568                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2569                         return -EINVAL;
2570                 if (!sci_open(toshiba_acpi))
2571                         return -EIO;
2572                 ret = toshiba_acpi_smm_bridge(&regs);
2573                 sci_close(toshiba_acpi);
2574                 if (ret)
2575                         return ret;
2576                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2577                         return -EFAULT;
2578                 break;
2579         default:
2580                 return -EINVAL;
2581         }
2582
2583         return 0;
2584 }
2585
2586 static const struct file_operations toshiba_acpi_fops = {
2587         .owner          = THIS_MODULE,
2588         .unlocked_ioctl = toshiba_acpi_ioctl,
2589         .llseek         = noop_llseek,
2590 };
2591
2592 /*
2593  * WWAN RFKill handlers
2594  */
2595 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2596 {
2597         struct toshiba_acpi_dev *dev = data;
2598         int ret;
2599
2600         ret = toshiba_wireless_status(dev);
2601         if (ret)
2602                 return ret;
2603
2604         if (!dev->killswitch)
2605                 return 0;
2606
2607         return toshiba_wwan_set(dev, !blocked);
2608 }
2609
2610 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2611 {
2612         struct toshiba_acpi_dev *dev = data;
2613
2614         if (toshiba_wireless_status(dev))
2615                 return;
2616
2617         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2618 }
2619
2620 static const struct rfkill_ops wwan_rfk_ops = {
2621         .set_block = toshiba_acpi_wwan_set_block,
2622         .poll = toshiba_acpi_wwan_poll,
2623 };
2624
2625 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2626 {
2627         int ret = toshiba_wireless_status(dev);
2628
2629         if (ret)
2630                 return ret;
2631
2632         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2633                                      &dev->acpi_dev->dev,
2634                                      RFKILL_TYPE_WWAN,
2635                                      &wwan_rfk_ops,
2636                                      dev);
2637         if (!dev->wwan_rfk) {
2638                 pr_err("Unable to allocate WWAN rfkill device\n");
2639                 return -ENOMEM;
2640         }
2641
2642         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2643
2644         ret = rfkill_register(dev->wwan_rfk);
2645         if (ret) {
2646                 pr_err("Unable to register WWAN rfkill device\n");
2647                 rfkill_destroy(dev->wwan_rfk);
2648         }
2649
2650         return ret;
2651 }
2652
2653 /*
2654  * Hotkeys
2655  */
2656 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2657 {
2658         acpi_status status;
2659         u32 result;
2660
2661         status = acpi_evaluate_object(dev->acpi_dev->handle,
2662                                       "ENAB", NULL, NULL);
2663         if (ACPI_FAILURE(status))
2664                 return -ENODEV;
2665
2666         /*
2667          * Enable the "Special Functions" mode only if they are
2668          * supported and if they are activated.
2669          */
2670         if (dev->kbd_function_keys_supported && dev->special_functions)
2671                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2672                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2673         else
2674                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2675
2676         if (result == TOS_FAILURE)
2677                 return -EIO;
2678         else if (result == TOS_NOT_SUPPORTED)
2679                 return -ENODEV;
2680
2681         return 0;
2682 }
2683
2684 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2685                                       struct serio *port)
2686 {
2687         if (str & I8042_STR_AUXDATA)
2688                 return false;
2689
2690         if (unlikely(data == 0xe0))
2691                 return false;
2692
2693         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2694                 schedule_work(&toshiba_acpi->hotkey_work);
2695                 return true;
2696         }
2697
2698         return false;
2699 }
2700
2701 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2702 {
2703         acpi_handle ec_handle = ec_get_handle();
2704         acpi_status status;
2705
2706         if (!ec_handle)
2707                 return;
2708
2709         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2710         if (ACPI_FAILURE(status))
2711                 pr_err("ACPI NTFY method execution failed\n");
2712 }
2713
2714 /*
2715  * Returns hotkey scancode, or < 0 on failure.
2716  */
2717 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2718 {
2719         unsigned long long value;
2720         acpi_status status;
2721
2722         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2723                                       NULL, &value);
2724         if (ACPI_FAILURE(status)) {
2725                 pr_err("ACPI INFO method execution failed\n");
2726                 return -EIO;
2727         }
2728
2729         return value;
2730 }
2731
2732 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2733                                        int scancode)
2734 {
2735         if (scancode == 0x100)
2736                 return;
2737
2738         /* Act on key press; ignore key release */
2739         if (scancode & 0x80)
2740                 return;
2741
2742         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2743                 pr_info("Unknown key %x\n", scancode);
2744 }
2745
2746 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2747 {
2748         if (dev->info_supported) {
2749                 int scancode = toshiba_acpi_query_hotkey(dev);
2750
2751                 if (scancode < 0) {
2752                         pr_err("Failed to query hotkey event\n");
2753                 } else if (scancode != 0) {
2754                         toshiba_acpi_report_hotkey(dev, scancode);
2755                         dev->key_event_valid = 1;
2756                         dev->last_key_event = scancode;
2757                 }
2758         } else if (dev->system_event_supported) {
2759                 u32 result;
2760                 u32 value;
2761                 int retries = 3;
2762
2763                 do {
2764                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2765                         switch (result) {
2766                         case TOS_SUCCESS:
2767                                 toshiba_acpi_report_hotkey(dev, (int)value);
2768                                 dev->key_event_valid = 1;
2769                                 dev->last_key_event = value;
2770                                 break;
2771                         case TOS_NOT_SUPPORTED:
2772                                 /*
2773                                  * This is a workaround for an unresolved
2774                                  * issue on some machines where system events
2775                                  * sporadically become disabled.
2776                                  */
2777                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2778                                 if (result == TOS_SUCCESS)
2779                                         pr_notice("Re-enabled hotkeys\n");
2780                                 /* Fall through */
2781                         default:
2782                                 retries--;
2783                                 break;
2784                         }
2785                 } while (retries && result != TOS_FIFO_EMPTY);
2786         }
2787 }
2788
2789 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2790 {
2791         const struct key_entry *keymap = toshiba_acpi_keymap;
2792         acpi_handle ec_handle;
2793         int error;
2794
2795         if (disable_hotkeys) {
2796                 pr_info("Hotkeys disabled by module parameter\n");
2797                 return 0;
2798         }
2799
2800         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2801                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2802                 return 0;
2803         }
2804
2805         error = toshiba_acpi_enable_hotkeys(dev);
2806         if (error)
2807                 return error;
2808
2809         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2810                 pr_notice("Unable to query Hotkey Event Type\n");
2811
2812         dev->hotkey_dev = input_allocate_device();
2813         if (!dev->hotkey_dev)
2814                 return -ENOMEM;
2815
2816         dev->hotkey_dev->name = "Toshiba input device";
2817         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2818         dev->hotkey_dev->id.bustype = BUS_HOST;
2819
2820         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2821             !dev->kbd_function_keys_supported)
2822                 keymap = toshiba_acpi_keymap;
2823         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2824                  dev->kbd_function_keys_supported)
2825                 keymap = toshiba_acpi_alt_keymap;
2826         else
2827                 pr_info("Unknown event type received %x\n",
2828                         dev->hotkey_event_type);
2829         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2830         if (error)
2831                 goto err_free_dev;
2832
2833         /*
2834          * For some machines the SCI responsible for providing hotkey
2835          * notification doesn't fire. We can trigger the notification
2836          * whenever the Fn key is pressed using the NTFY method, if
2837          * supported, so if it's present set up an i8042 key filter
2838          * for this purpose.
2839          */
2840         ec_handle = ec_get_handle();
2841         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2842                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2843
2844                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2845                 if (error) {
2846                         pr_err("Error installing key filter\n");
2847                         goto err_free_dev;
2848                 }
2849
2850                 dev->ntfy_supported = 1;
2851         }
2852
2853         /*
2854          * Determine hotkey query interface. Prefer using the INFO
2855          * method when it is available.
2856          */
2857         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2858                 dev->info_supported = 1;
2859         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2860                 dev->system_event_supported = 1;
2861
2862         if (!dev->info_supported && !dev->system_event_supported) {
2863                 pr_warn("No hotkey query interface found\n");
2864                 error = -EINVAL;
2865                 goto err_remove_filter;
2866         }
2867
2868         error = input_register_device(dev->hotkey_dev);
2869         if (error) {
2870                 pr_info("Unable to register input device\n");
2871                 goto err_remove_filter;
2872         }
2873
2874         return 0;
2875
2876  err_remove_filter:
2877         if (dev->ntfy_supported)
2878                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2879  err_free_dev:
2880         input_free_device(dev->hotkey_dev);
2881         dev->hotkey_dev = NULL;
2882         return error;
2883 }
2884
2885 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2886 {
2887         struct backlight_properties props;
2888         int brightness;
2889         int ret;
2890
2891         /*
2892          * Some machines don't support the backlight methods at all, and
2893          * others support it read-only. Either of these is pretty useless,
2894          * so only register the backlight device if the backlight method
2895          * supports both reads and writes.
2896          */
2897         brightness = __get_lcd_brightness(dev);
2898         if (brightness < 0)
2899                 return 0;
2900         /*
2901          * If transflective backlight is supported and the brightness is zero
2902          * (lowest brightness level), the set_lcd_brightness function will
2903          * activate the transflective backlight, making the LCD appear to be
2904          * turned off, simply increment the brightness level to avoid that.
2905          */
2906         if (dev->tr_backlight_supported && brightness == 0)
2907                 brightness++;
2908         ret = set_lcd_brightness(dev, brightness);
2909         if (ret) {
2910                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2911                 return 0;
2912         }
2913
2914         /*
2915          * Tell acpi-video-detect code to prefer vendor backlight on all
2916          * systems with transflective backlight and on dmi matched systems.
2917          */
2918         if (dev->tr_backlight_supported ||
2919             dmi_check_system(toshiba_vendor_backlight_dmi))
2920                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2921
2922         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2923                 return 0;
2924
2925         memset(&props, 0, sizeof(props));
2926         props.type = BACKLIGHT_PLATFORM;
2927         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2928
2929         /* Adding an extra level and having 0 change to transflective mode */
2930         if (dev->tr_backlight_supported)
2931                 props.max_brightness++;
2932
2933         dev->backlight_dev = backlight_device_register("toshiba",
2934                                                        &dev->acpi_dev->dev,
2935                                                        dev,
2936                                                        &toshiba_backlight_data,
2937                                                        &props);
2938         if (IS_ERR(dev->backlight_dev)) {
2939                 ret = PTR_ERR(dev->backlight_dev);
2940                 pr_err("Could not register toshiba backlight device\n");
2941                 dev->backlight_dev = NULL;
2942                 return ret;
2943         }
2944
2945         dev->backlight_dev->props.brightness = brightness;
2946         return 0;
2947 }
2948
2949 static void print_supported_features(struct toshiba_acpi_dev *dev)
2950 {
2951         pr_info("Supported laptop features:");
2952
2953         if (dev->hotkey_dev)
2954                 pr_cont(" hotkeys");
2955         if (dev->backlight_dev)
2956                 pr_cont(" backlight");
2957         if (dev->video_supported)
2958                 pr_cont(" video-out");
2959         if (dev->fan_supported)
2960                 pr_cont(" fan");
2961         if (dev->tr_backlight_supported)
2962                 pr_cont(" transflective-backlight");
2963         if (dev->illumination_supported)
2964                 pr_cont(" illumination");
2965         if (dev->kbd_illum_supported)
2966                 pr_cont(" keyboard-backlight");
2967         if (dev->touchpad_supported)
2968                 pr_cont(" touchpad");
2969         if (dev->eco_supported)
2970                 pr_cont(" eco-led");
2971         if (dev->accelerometer_supported)
2972                 pr_cont(" accelerometer-axes");
2973         if (dev->usb_sleep_charge_supported)
2974                 pr_cont(" usb-sleep-charge");
2975         if (dev->usb_rapid_charge_supported)
2976                 pr_cont(" usb-rapid-charge");
2977         if (dev->usb_sleep_music_supported)
2978                 pr_cont(" usb-sleep-music");
2979         if (dev->kbd_function_keys_supported)
2980                 pr_cont(" special-function-keys");
2981         if (dev->panel_power_on_supported)
2982                 pr_cont(" panel-power-on");
2983         if (dev->usb_three_supported)
2984                 pr_cont(" usb3");
2985         if (dev->wwan_supported)
2986                 pr_cont(" wwan");
2987         if (dev->cooling_method_supported)
2988                 pr_cont(" cooling-method");
2989
2990         pr_cont("\n");
2991 }
2992
2993 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2994 {
2995         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2996
2997         misc_deregister(&dev->miscdev);
2998
2999         remove_toshiba_proc_entries(dev);
3000
3001         if (dev->accelerometer_supported && dev->indio_dev) {
3002                 iio_device_unregister(dev->indio_dev);
3003                 iio_device_free(dev->indio_dev);
3004         }
3005
3006         if (dev->sysfs_created)
3007                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3008                                    &toshiba_attr_group);
3009
3010         if (dev->ntfy_supported) {
3011                 i8042_remove_filter(toshiba_acpi_i8042_filter);
3012                 cancel_work_sync(&dev->hotkey_work);
3013         }
3014
3015         if (dev->hotkey_dev)
3016                 input_unregister_device(dev->hotkey_dev);
3017
3018         backlight_device_unregister(dev->backlight_dev);
3019
3020         if (dev->illumination_led_registered)
3021                 led_classdev_unregister(&dev->led_dev);
3022
3023         if (dev->kbd_led_registered)
3024                 led_classdev_unregister(&dev->kbd_led);
3025
3026         if (dev->eco_led_registered)
3027                 led_classdev_unregister(&dev->eco_led);
3028
3029         if (dev->wwan_rfk) {
3030                 rfkill_unregister(dev->wwan_rfk);
3031                 rfkill_destroy(dev->wwan_rfk);
3032         }
3033
3034         if (toshiba_acpi)
3035                 toshiba_acpi = NULL;
3036
3037         kfree(dev);
3038
3039         return 0;
3040 }
3041
3042 static const char *find_hci_method(acpi_handle handle)
3043 {
3044         if (acpi_has_method(handle, "GHCI"))
3045                 return "GHCI";
3046
3047         if (acpi_has_method(handle, "SPFC"))
3048                 return "SPFC";
3049
3050         return NULL;
3051 }
3052
3053 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3054 {
3055         struct toshiba_acpi_dev *dev;
3056         const char *hci_method;
3057         u32 dummy;
3058         int ret = 0;
3059
3060         if (toshiba_acpi)
3061                 return -EBUSY;
3062
3063         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3064                TOSHIBA_ACPI_VERSION);
3065
3066         hci_method = find_hci_method(acpi_dev->handle);
3067         if (!hci_method) {
3068                 pr_err("HCI interface not found\n");
3069                 return -ENODEV;
3070         }
3071
3072         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3073         if (!dev)
3074                 return -ENOMEM;
3075         dev->acpi_dev = acpi_dev;
3076         dev->method_hci = hci_method;
3077         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3078         dev->miscdev.name = "toshiba_acpi";
3079         dev->miscdev.fops = &toshiba_acpi_fops;
3080
3081         ret = misc_register(&dev->miscdev);
3082         if (ret) {
3083                 pr_err("Failed to register miscdevice\n");
3084                 kfree(dev);
3085                 return ret;
3086         }
3087
3088         acpi_dev->driver_data = dev;
3089         dev_set_drvdata(&acpi_dev->dev, dev);
3090
3091         /* Query the BIOS for supported features */
3092
3093         /*
3094          * The "Special Functions" are always supported by the laptops
3095          * with the new keyboard layout, query for its presence to help
3096          * determine the keymap layout to use.
3097          */
3098         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3099         dev->kbd_function_keys_supported = !ret;
3100
3101         dev->hotkey_event_type = 0;
3102         if (toshiba_acpi_setup_keyboard(dev))
3103                 pr_info("Unable to activate hotkeys\n");
3104
3105         /* Determine whether or not BIOS supports transflective backlight */
3106         ret = get_tr_backlight_status(dev, &dummy);
3107         dev->tr_backlight_supported = !ret;
3108
3109         ret = toshiba_acpi_setup_backlight(dev);
3110         if (ret)
3111                 goto error;
3112
3113         toshiba_illumination_available(dev);
3114         if (dev->illumination_supported) {
3115                 dev->led_dev.name = "toshiba::illumination";
3116                 dev->led_dev.max_brightness = 1;
3117                 dev->led_dev.brightness_set = toshiba_illumination_set;
3118                 dev->led_dev.brightness_get = toshiba_illumination_get;
3119                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3120                         dev->illumination_led_registered = true;
3121         }
3122
3123         toshiba_eco_mode_available(dev);
3124         if (dev->eco_supported) {
3125                 dev->eco_led.name = "toshiba::eco_mode";
3126                 dev->eco_led.max_brightness = 1;
3127                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3128                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3129                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3130                         dev->eco_led_registered = true;
3131         }
3132
3133         toshiba_kbd_illum_available(dev);
3134         /*
3135          * Only register the LED if KBD illumination is supported
3136          * and the keyboard backlight operation mode is set to FN-Z
3137          */
3138         if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3139                 dev->kbd_led.name = "toshiba::kbd_backlight";
3140                 dev->kbd_led.max_brightness = 1;
3141                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3142                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3143                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3144                         dev->kbd_led_registered = true;
3145         }
3146
3147         ret = toshiba_touchpad_get(dev, &dummy);
3148         dev->touchpad_supported = !ret;
3149
3150         toshiba_accelerometer_available(dev);
3151         if (dev->accelerometer_supported) {
3152                 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3153                 if (!dev->indio_dev) {
3154                         pr_err("Unable to allocate iio device\n");
3155                         goto iio_error;
3156                 }
3157
3158                 pr_info("Registering Toshiba accelerometer iio device\n");
3159
3160                 dev->indio_dev->info = &toshiba_iio_accel_info;
3161                 dev->indio_dev->name = "Toshiba accelerometer";
3162                 dev->indio_dev->dev.parent = &acpi_dev->dev;
3163                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3164                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3165                 dev->indio_dev->num_channels =
3166                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3167
3168                 ret = iio_device_register(dev->indio_dev);
3169                 if (ret < 0) {
3170                         pr_err("Unable to register iio device\n");
3171                         iio_device_free(dev->indio_dev);
3172                 }
3173         }
3174 iio_error:
3175
3176         toshiba_usb_sleep_charge_available(dev);
3177
3178         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3179         dev->usb_rapid_charge_supported = !ret;
3180
3181         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3182         dev->usb_sleep_music_supported = !ret;
3183
3184         ret = toshiba_panel_power_on_get(dev, &dummy);
3185         dev->panel_power_on_supported = !ret;
3186
3187         ret = toshiba_usb_three_get(dev, &dummy);
3188         dev->usb_three_supported = !ret;
3189
3190         ret = get_video_status(dev, &dummy);
3191         dev->video_supported = !ret;
3192
3193         ret = get_fan_status(dev, &dummy);
3194         dev->fan_supported = !ret;
3195
3196         toshiba_wwan_available(dev);
3197         if (dev->wwan_supported)
3198                 toshiba_acpi_setup_wwan_rfkill(dev);
3199
3200         toshiba_cooling_method_available(dev);
3201
3202         print_supported_features(dev);
3203
3204         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3205                                  &toshiba_attr_group);
3206         if (ret) {
3207                 dev->sysfs_created = 0;
3208                 goto error;
3209         }
3210         dev->sysfs_created = !ret;
3211
3212         create_toshiba_proc_entries(dev);
3213
3214         toshiba_acpi = dev;
3215
3216         return 0;
3217
3218 error:
3219         toshiba_acpi_remove(acpi_dev);
3220         return ret;
3221 }
3222
3223 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3224 {
3225         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3226
3227         switch (event) {
3228         case 0x80: /* Hotkeys and some system events */
3229                 /*
3230                  * Machines with this WMI GUID aren't supported due to bugs in
3231                  * their AML.
3232                  *
3233                  * Return silently to avoid triggering a netlink event.
3234                  */
3235                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3236                         return;
3237                 toshiba_acpi_process_hotkeys(dev);
3238                 break;
3239         case 0x81: /* Dock events */
3240         case 0x82:
3241         case 0x83:
3242                 pr_info("Dock event received %x\n", event);
3243                 break;
3244         case 0x88: /* Thermal events */
3245                 pr_info("Thermal event received\n");
3246                 break;
3247         case 0x8f: /* LID closed */
3248         case 0x90: /* LID is closed and Dock has been ejected */
3249                 break;
3250         case 0x8c: /* SATA power events */
3251         case 0x8b:
3252                 pr_info("SATA power event received %x\n", event);
3253                 break;
3254         case 0x92: /* Keyboard backlight mode changed */
3255                 toshiba_acpi->kbd_event_generated = true;
3256                 /* Update sysfs entries */
3257                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3258                                        &toshiba_attr_group))
3259                         pr_err("Unable to update sysfs entries\n");
3260                 break;
3261         case 0x85: /* Unknown */
3262         case 0x8d: /* Unknown */
3263         case 0x8e: /* Unknown */
3264         case 0x94: /* Unknown */
3265         case 0x95: /* Unknown */
3266         default:
3267                 pr_info("Unknown event received %x\n", event);
3268                 break;
3269         }
3270
3271         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3272                                         dev_name(&acpi_dev->dev),
3273                                         event, (event == 0x80) ?
3274                                         dev->last_key_event : 0);
3275 }
3276
3277 #ifdef CONFIG_PM_SLEEP
3278 static int toshiba_acpi_suspend(struct device *device)
3279 {
3280         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3281
3282         if (dev->hotkey_dev) {
3283                 u32 result;
3284
3285                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3286                 if (result != TOS_SUCCESS)
3287                         pr_info("Unable to disable hotkeys\n");
3288         }
3289
3290         return 0;
3291 }
3292
3293 static int toshiba_acpi_resume(struct device *device)
3294 {
3295         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3296
3297         if (dev->hotkey_dev) {
3298                 if (toshiba_acpi_enable_hotkeys(dev))
3299                         pr_info("Unable to re-enable hotkeys\n");
3300         }
3301
3302         if (dev->wwan_rfk) {
3303                 if (!toshiba_wireless_status(dev))
3304                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3305         }
3306
3307         return 0;
3308 }
3309 #endif
3310
3311 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3312                          toshiba_acpi_suspend, toshiba_acpi_resume);
3313
3314 static struct acpi_driver toshiba_acpi_driver = {
3315         .name   = "Toshiba ACPI driver",
3316         .owner  = THIS_MODULE,
3317         .ids    = toshiba_device_ids,
3318         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3319         .ops    = {
3320                 .add            = toshiba_acpi_add,
3321                 .remove         = toshiba_acpi_remove,
3322                 .notify         = toshiba_acpi_notify,
3323         },
3324         .drv.pm = &toshiba_acpi_pm,
3325 };
3326
3327 static int __init toshiba_acpi_init(void)
3328 {
3329         int ret;
3330
3331         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3332         if (!toshiba_proc_dir) {
3333                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3334                 return -ENODEV;
3335         }
3336
3337         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3338         if (ret) {
3339                 pr_err("Failed to register ACPI driver: %d\n", ret);
3340                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3341         }
3342
3343         return ret;
3344 }
3345
3346 static void __exit toshiba_acpi_exit(void)
3347 {
3348         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3349         if (toshiba_proc_dir)
3350                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3351 }
3352
3353 module_init(toshiba_acpi_init);
3354 module_exit(toshiba_acpi_exit);