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) 2014-2015 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    "0.23"
  35 #define PROC_INTERFACE_VERSION  1
  36
  37 #include <linux/kernel.h>
  38 #include <linux/module.h>
  39 #include <linux/moduleparam.h>
  40 #include <linux/init.h>
  41 #include <linux/types.h>
  42 #include <linux/proc_fs.h>
  43 #include <linux/seq_file.h>
  44 #include <linux/backlight.h>
  45 #include <linux/input.h>
  46 #include <linux/input/sparse-keymap.h>
  47 #include <linux/leds.h>
  48 #include <linux/slab.h>
  49 #include <linux/workqueue.h>
  50 #include <linux/i8042.h>
  51 #include <linux/acpi.h>
  52 #include <linux/dmi.h>
  53 #include <linux/uaccess.h>
  54 #include <linux/miscdevice.h>
  55 #include <linux/rfkill.h>
  56 #include <linux/toshiba.h>
  57 #include <acpi/video.h>
  58
  59 MODULE_AUTHOR("John Belmonte");
  60 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  61 MODULE_LICENSE("GPL");
  62
  63 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  64
  65 /* Scan code for Fn key on TOS1900 models */
  66 #define TOS1900_FN_SCAN         0x6e
  67
  68 /* Toshiba ACPI method paths */
  69 #define METHOD_VIDEO_OUT        "\\_SB_.VALX.DSSX"
  70
  71 /*
  72  * The Toshiba configuration interface is composed of the HCI and the SCI,
  73  * which are defined as follows:
  74  *
  75  * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  76  * be uniform across all their models.  Ideally we would just call
  77  * dedicated ACPI methods instead of using this primitive interface.
  78  * However the ACPI methods seem to be incomplete in some areas (for
  79  * example they allow setting, but not reading, the LCD brightness value),
  80  * so this is still useful.
  81  *
  82  * SCI stands for "System Configuration Interface" which aim is to
  83  * conceal differences in hardware between different models.
  84  */
  85
  86 #define TCI_WORDS                       6
  87
  88 /* Operations */
  89 #define HCI_SET                         0xff00
  90 #define HCI_GET                         0xfe00
  91 #define SCI_OPEN                        0xf100
  92 #define SCI_CLOSE                       0xf200
  93 #define SCI_GET                         0xf300
  94 #define SCI_SET                         0xf400
  95
  96 /* Return codes */
  97 #define TOS_SUCCESS                     0x0000
  98 #define TOS_SUCCESS2                    0x0001
  99 #define TOS_OPEN_CLOSE_OK               0x0044
 100 #define TOS_FAILURE                     0x1000
 101 #define TOS_NOT_SUPPORTED               0x8000
 102 #define TOS_ALREADY_OPEN                0x8100
 103 #define TOS_NOT_OPENED                  0x8200
 104 #define TOS_INPUT_DATA_ERROR            0x8300
 105 #define TOS_WRITE_PROTECTED             0x8400
 106 #define TOS_NOT_PRESENT                 0x8600
 107 #define TOS_FIFO_EMPTY                  0x8c00
 108 #define TOS_DATA_NOT_AVAILABLE          0x8d20
 109 #define TOS_NOT_INITIALIZED             0x8d50
 110 #define TOS_NOT_INSTALLED               0x8e00
 111
 112 /* Registers */
 113 #define HCI_FAN                         0x0004
 114 #define HCI_TR_BACKLIGHT                0x0005
 115 #define HCI_SYSTEM_EVENT                0x0016
 116 #define HCI_VIDEO_OUT                   0x001c
 117 #define HCI_HOTKEY_EVENT                0x001e
 118 #define HCI_LCD_BRIGHTNESS              0x002a
 119 #define HCI_WIRELESS                    0x0056
 120 #define HCI_ACCELEROMETER               0x006d
 121 #define HCI_COOLING_METHOD              0x007f
 122 #define HCI_KBD_ILLUMINATION            0x0095
 123 #define HCI_ECO_MODE                    0x0097
 124 #define HCI_ACCELEROMETER2              0x00a6
 125 #define HCI_SYSTEM_INFO                 0xc000
 126 #define SCI_PANEL_POWER_ON              0x010d
 127 #define SCI_ILLUMINATION                0x014e
 128 #define SCI_USB_SLEEP_CHARGE            0x0150
 129 #define SCI_KBD_ILLUM_STATUS            0x015c
 130 #define SCI_USB_SLEEP_MUSIC             0x015e
 131 #define SCI_USB_THREE                   0x0169
 132 #define SCI_TOUCHPAD                    0x050e
 133 #define SCI_KBD_FUNCTION_KEYS           0x0522
 134
 135 /* Field definitions */
 136 #define HCI_ACCEL_MASK                  0x7fff
 137 #define HCI_HOTKEY_DISABLE              0x0b
 138 #define HCI_HOTKEY_ENABLE               0x09
 139 #define HCI_HOTKEY_SPECIAL_FUNCTIONS    0x10
 140 #define HCI_LCD_BRIGHTNESS_BITS         3
 141 #define HCI_LCD_BRIGHTNESS_SHIFT        (16-HCI_LCD_BRIGHTNESS_BITS)
 142 #define HCI_LCD_BRIGHTNESS_LEVELS       (1 << HCI_LCD_BRIGHTNESS_BITS)
 143 #define HCI_MISC_SHIFT                  0x10
 144 #define HCI_SYSTEM_TYPE1                0x10
 145 #define HCI_SYSTEM_TYPE2                0x11
 146 #define HCI_VIDEO_OUT_LCD               0x1
 147 #define HCI_VIDEO_OUT_CRT               0x2
 148 #define HCI_VIDEO_OUT_TV                0x4
 149 #define SCI_KBD_MODE_MASK               0x1f
 150 #define SCI_KBD_MODE_FNZ                0x1
 151 #define SCI_KBD_MODE_AUTO               0x2
 152 #define SCI_KBD_MODE_ON                 0x8
 153 #define SCI_KBD_MODE_OFF                0x10
 154 #define SCI_KBD_TIME_MAX                0x3c001a
 155 #define HCI_WIRELESS_STATUS             0x1
 156 #define HCI_WIRELESS_WWAN               0x3
 157 #define HCI_WIRELESS_WWAN_STATUS        0x2000
 158 #define HCI_WIRELESS_WWAN_POWER         0x4000
 159 #define SCI_USB_CHARGE_MODE_MASK        0xff
 160 #define SCI_USB_CHARGE_DISABLED         0x00
 161 #define SCI_USB_CHARGE_ALTERNATE        0x09
 162 #define SCI_USB_CHARGE_TYPICAL          0x11
 163 #define SCI_USB_CHARGE_AUTO             0x21
 164 #define SCI_USB_CHARGE_BAT_MASK         0x7
 165 #define SCI_USB_CHARGE_BAT_LVL_OFF      0x1
 166 #define SCI_USB_CHARGE_BAT_LVL_ON       0x4
 167 #define SCI_USB_CHARGE_BAT_LVL          0x0200
 168 #define SCI_USB_CHARGE_RAPID_DSP        0x0300
 169
 170 struct toshiba_acpi_dev {
 171         struct acpi_device *acpi_dev;
 172         const char *method_hci;
 173         struct input_dev *hotkey_dev;
 174         struct work_struct hotkey_work;
 175         struct backlight_device *backlight_dev;
 176         struct led_classdev led_dev;
 177         struct led_classdev kbd_led;
 178         struct led_classdev eco_led;
 179         struct miscdevice miscdev;
 180         struct rfkill *wwan_rfk;
 181
 182         int force_fan;
 183         int last_key_event;
 184         int key_event_valid;
 185         int kbd_type;
 186         int kbd_mode;
 187         int kbd_time;
 188         int usbsc_bat_level;
 189         int usbsc_mode_base;
 190         int hotkey_event_type;
 191         int max_cooling_method;
 192
 193         unsigned int illumination_supported:1;
 194         unsigned int video_supported:1;
 195         unsigned int fan_supported:1;
 196         unsigned int system_event_supported:1;
 197         unsigned int ntfy_supported:1;
 198         unsigned int info_supported:1;
 199         unsigned int tr_backlight_supported:1;
 200         unsigned int kbd_illum_supported:1;
 201         unsigned int touchpad_supported:1;
 202         unsigned int eco_supported:1;
 203         unsigned int accelerometer_supported:1;
 204         unsigned int usb_sleep_charge_supported:1;
 205         unsigned int usb_rapid_charge_supported:1;
 206         unsigned int usb_sleep_music_supported:1;
 207         unsigned int kbd_function_keys_supported:1;
 208         unsigned int panel_power_on_supported:1;
 209         unsigned int usb_three_supported:1;
 210         unsigned int wwan_supported:1;
 211         unsigned int cooling_method_supported:1;
 212         unsigned int sysfs_created:1;
 213         unsigned int special_functions;
 214
 215         bool kbd_event_generated;
 216         bool kbd_led_registered;
 217         bool illumination_led_registered;
 218         bool eco_led_registered;
 219         bool killswitch;
 220 };
 221
 222 static struct toshiba_acpi_dev *toshiba_acpi;
 223
 224 static bool disable_hotkeys;
 225 module_param(disable_hotkeys, bool, 0444);
 226 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 227
 228 static const struct acpi_device_id toshiba_device_ids[] = {
 229         {"TOS6200", 0},
 230         {"TOS6207", 0},
 231         {"TOS6208", 0},
 232         {"TOS1900", 0},
 233         {"", 0},
 234 };
 235 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 236
 237 static const struct key_entry toshiba_acpi_keymap[] = {
 238         { KE_KEY, 0x9e, { KEY_RFKILL } },
 239         { KE_KEY, 0x101, { KEY_MUTE } },
 240         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 241         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 242         { KE_KEY, 0x10f, { KEY_TAB } },
 243         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 244         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 245         { KE_KEY, 0x13b, { KEY_COFFEE } },
 246         { KE_KEY, 0x13c, { KEY_BATTERY } },
 247         { KE_KEY, 0x13d, { KEY_SLEEP } },
 248         { KE_KEY, 0x13e, { KEY_SUSPEND } },
 249         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 250         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 251         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 252         { KE_KEY, 0x142, { KEY_WLAN } },
 253         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 254         { KE_KEY, 0x17f, { KEY_FN } },
 255         { KE_KEY, 0xb05, { KEY_PROG2 } },
 256         { KE_KEY, 0xb06, { KEY_WWW } },
 257         { KE_KEY, 0xb07, { KEY_MAIL } },
 258         { KE_KEY, 0xb30, { KEY_STOP } },
 259         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 260         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
 261         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 262         { KE_KEY, 0xb5a, { KEY_MEDIA } },
 263         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 264         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 265         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 266         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 267         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 268         { KE_END, 0 },
 269 };
 270
 271 static const struct key_entry toshiba_acpi_alt_keymap[] = {
 272         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
 273         { KE_KEY, 0x103, { KEY_ZOOMIN } },
 274         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 275         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
 276         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 277         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 278         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 279         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 280         { KE_KEY, 0x157, { KEY_MUTE } },
 281         { KE_KEY, 0x158, { KEY_WLAN } },
 282         { KE_END, 0 },
 283 };
 284
 285 /*
 286  * List of models which have a broken acpi-video backlight interface and thus
 287  * need to use the toshiba (vendor) interface instead.
 288  */
 289 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 290         {}
 291 };
 292
 293 /*
 294  * Utility
 295  */
 296
 297 static inline void _set_bit(u32 *word, u32 mask, int value)
 298 {
 299         *word = (*word & ~mask) | (mask * value);
 300 }
 301
 302 /*
 303  * ACPI interface wrappers
 304  */
 305
 306 static int write_acpi_int(const char *methodName, int val)
 307 {
 308         acpi_status status;
 309
 310         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 311         return (status == AE_OK) ? 0 : -EIO;
 312 }
 313
 314 /*
 315  * Perform a raw configuration call.  Here we don't care about input or output
 316  * buffer format.
 317  */
 318 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 319                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 320 {
 321         struct acpi_object_list params;
 322         union acpi_object in_objs[TCI_WORDS];
 323         struct acpi_buffer results;
 324         union acpi_object out_objs[TCI_WORDS + 1];
 325         acpi_status status;
 326         int i;
 327
 328         params.count = TCI_WORDS;
 329         params.pointer = in_objs;
 330         for (i = 0; i < TCI_WORDS; ++i) {
 331                 in_objs[i].type = ACPI_TYPE_INTEGER;
 332                 in_objs[i].integer.value = in[i];
 333         }
 334
 335         results.length = sizeof(out_objs);
 336         results.pointer = out_objs;
 337
 338         status = acpi_evaluate_object(dev->acpi_dev->handle,
 339                                       (char *)dev->method_hci, &params,
 340                                       &results);
 341         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 342                 for (i = 0; i < out_objs->package.count; ++i)
 343                         out[i] = out_objs->package.elements[i].integer.value;
 344         }
 345
 346         return status;
 347 }
 348
 349 /*
 350  * Common hci tasks
 351  *
 352  * In addition to the ACPI status, the HCI system returns a result which
 353  * may be useful (such as "not supported").
 354  */
 355
 356 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 357 {
 358         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 359         u32 out[TCI_WORDS];
 360         acpi_status status = tci_raw(dev, in, out);
 361
 362         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 363 }
 364
 365 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 366 {
 367         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 368         u32 out[TCI_WORDS];
 369         acpi_status status = tci_raw(dev, in, out);
 370
 371         if (ACPI_FAILURE(status))
 372                 return TOS_FAILURE;
 373
 374         *out1 = out[2];
 375
 376         return out[0];
 377 }
 378
 379 /*
 380  * Common sci tasks
 381  */
 382
 383 static int sci_open(struct toshiba_acpi_dev *dev)
 384 {
 385         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 386         u32 out[TCI_WORDS];
 387         acpi_status status;
 388
 389         status = tci_raw(dev, in, out);
 390         if  (ACPI_FAILURE(status)) {
 391                 pr_err("ACPI call to open SCI failed\n");
 392                 return 0;
 393         }
 394
 395         if (out[0] == TOS_OPEN_CLOSE_OK) {
 396                 return 1;
 397         } else if (out[0] == TOS_ALREADY_OPEN) {
 398                 pr_info("Toshiba SCI already opened\n");
 399                 return 1;
 400         } else if (out[0] == TOS_NOT_SUPPORTED) {
 401                 /*
 402                  * Some BIOSes do not have the SCI open/close functions
 403                  * implemented and return 0x8000 (Not Supported), failing to
 404                  * register some supported features.
 405                  *
 406                  * Simply return 1 if we hit those affected laptops to make the
 407                  * supported features work.
 408                  *
 409                  * In the case that some laptops really do not support the SCI,
 410                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 411                  * and thus, not registering support for the queried feature.
 412                  */
 413                 return 1;
 414         } else if (out[0] == TOS_NOT_PRESENT) {
 415                 pr_info("Toshiba SCI is not present\n");
 416         }
 417
 418         return 0;
 419 }
 420
 421 static void sci_close(struct toshiba_acpi_dev *dev)
 422 {
 423         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 424         u32 out[TCI_WORDS];
 425         acpi_status status;
 426
 427         status = tci_raw(dev, in, out);
 428         if (ACPI_FAILURE(status)) {
 429                 pr_err("ACPI call to close SCI failed\n");
 430                 return;
 431         }
 432
 433         if (out[0] == TOS_OPEN_CLOSE_OK)
 434                 return;
 435         else if (out[0] == TOS_NOT_OPENED)
 436                 pr_info("Toshiba SCI not opened\n");
 437         else if (out[0] == TOS_NOT_PRESENT)
 438                 pr_info("Toshiba SCI is not present\n");
 439 }
 440
 441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 442 {
 443         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 444         u32 out[TCI_WORDS];
 445         acpi_status status = tci_raw(dev, in, out);
 446
 447         if (ACPI_FAILURE(status))
 448                 return TOS_FAILURE;
 449
 450         *out1 = out[2];
 451
 452         return out[0];
 453 }
 454
 455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 456 {
 457         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 458         u32 out[TCI_WORDS];
 459         acpi_status status = tci_raw(dev, in, out);
 460
 461         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 462 }
 463
 464 /* Illumination support */
 465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 466 {
 467         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 468         u32 out[TCI_WORDS];
 469         acpi_status status;
 470
 471         dev->illumination_supported = 0;
 472         dev->illumination_led_registered = false;
 473
 474         if (!sci_open(dev))
 475                 return;
 476
 477         status = tci_raw(dev, in, out);
 478         sci_close(dev);
 479         if (ACPI_FAILURE(status))
 480                 pr_err("ACPI call to query Illumination support failed\n");
 481         else if (out[0] == TOS_SUCCESS)
 482                 dev->illumination_supported = 1;
 483 }
 484
 485 static void toshiba_illumination_set(struct led_classdev *cdev,
 486                                      enum led_brightness brightness)
 487 {
 488         struct toshiba_acpi_dev *dev = container_of(cdev,
 489                         struct toshiba_acpi_dev, led_dev);
 490         u32 result;
 491         u32 state;
 492
 493         /* First request : initialize communication. */
 494         if (!sci_open(dev))
 495                 return;
 496
 497         /* Switch the illumination on/off */
 498         state = brightness ? 1 : 0;
 499         result = sci_write(dev, SCI_ILLUMINATION, state);
 500         sci_close(dev);
 501         if (result == TOS_FAILURE)
 502                 pr_err("ACPI call for illumination failed\n");
 503 }
 504
 505 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 506 {
 507         struct toshiba_acpi_dev *dev = container_of(cdev,
 508                         struct toshiba_acpi_dev, led_dev);
 509         u32 state, result;
 510
 511         /* First request : initialize communication. */
 512         if (!sci_open(dev))
 513                 return LED_OFF;
 514
 515         /* Check the illumination */
 516         result = sci_read(dev, SCI_ILLUMINATION, &state);
 517         sci_close(dev);
 518         if (result == TOS_FAILURE) {
 519                 pr_err("ACPI call for illumination failed\n");
 520                 return LED_OFF;
 521         } else if (result != TOS_SUCCESS) {
 522                 return LED_OFF;
 523         }
 524
 525         return state ? LED_FULL : LED_OFF;
 526 }
 527
 528 /* KBD Illumination */
 529 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 530 {
 531         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 532         u32 out[TCI_WORDS];
 533         acpi_status status;
 534
 535         dev->kbd_illum_supported = 0;
 536         dev->kbd_led_registered = false;
 537         dev->kbd_event_generated = false;
 538
 539         if (!sci_open(dev))
 540                 return;
 541
 542         status = tci_raw(dev, in, out);
 543         sci_close(dev);
 544         if (ACPI_FAILURE(status)) {
 545                 pr_err("ACPI call to query kbd illumination support failed\n");
 546         } else if (out[0] == TOS_SUCCESS) {
 547                 /*
 548                  * Check for keyboard backlight timeout max value,
 549                  * previous kbd backlight implementation set this to
 550                  * 0x3c0003, and now the new implementation set this
 551                  * to 0x3c001a, use this to distinguish between them.
 552                  */
 553                 if (out[3] == SCI_KBD_TIME_MAX)
 554                         dev->kbd_type = 2;
 555                 else
 556                         dev->kbd_type = 1;
 557                 /* Get the current keyboard backlight mode */
 558                 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 559                 /* Get the current time (1-60 seconds) */
 560                 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 561                 /* Flag as supported */
 562                 dev->kbd_illum_supported = 1;
 563         }
 564 }
 565
 566 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 567 {
 568         u32 result;
 569
 570         if (!sci_open(dev))
 571                 return -EIO;
 572
 573         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 574         sci_close(dev);
 575         if (result == TOS_FAILURE)
 576                 pr_err("ACPI call to set KBD backlight status failed\n");
 577         else if (result == TOS_NOT_SUPPORTED)
 578                 return -ENODEV;
 579
 580         return result == TOS_SUCCESS ? 0 : -EIO;
 581 }
 582
 583 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 584 {
 585         u32 result;
 586
 587         if (!sci_open(dev))
 588                 return -EIO;
 589
 590         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 591         sci_close(dev);
 592         if (result == TOS_FAILURE)
 593                 pr_err("ACPI call to get KBD backlight status failed\n");
 594         else if (result == TOS_NOT_SUPPORTED)
 595                 return -ENODEV;
 596
 597         return result == TOS_SUCCESS ? 0 : -EIO;
 598 }
 599
 600 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 601 {
 602         struct toshiba_acpi_dev *dev = container_of(cdev,
 603                         struct toshiba_acpi_dev, kbd_led);
 604         u32 result;
 605         u32 state;
 606
 607         /* Check the keyboard backlight state */
 608         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 609         if (result == TOS_FAILURE) {
 610                 pr_err("ACPI call to get the keyboard backlight failed\n");
 611                 return LED_OFF;
 612         } else if (result != TOS_SUCCESS) {
 613                 return LED_OFF;
 614         }
 615
 616         return state ? LED_FULL : LED_OFF;
 617 }
 618
 619 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 620                                      enum led_brightness brightness)
 621 {
 622         struct toshiba_acpi_dev *dev = container_of(cdev,
 623                         struct toshiba_acpi_dev, kbd_led);
 624         u32 result;
 625         u32 state;
 626
 627         /* Set the keyboard backlight state */
 628         state = brightness ? 1 : 0;
 629         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 630         if (result == TOS_FAILURE)
 631                 pr_err("ACPI call to set KBD Illumination mode failed\n");
 632 }
 633
 634 /* TouchPad support */
 635 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 636 {
 637         u32 result;
 638
 639         if (!sci_open(dev))
 640                 return -EIO;
 641
 642         result = sci_write(dev, SCI_TOUCHPAD, state);
 643         sci_close(dev);
 644         if (result == TOS_FAILURE)
 645                 pr_err("ACPI call to set the touchpad failed\n");
 646         else if (result == TOS_NOT_SUPPORTED)
 647                 return -ENODEV;
 648
 649         return result == TOS_SUCCESS ? 0 : -EIO;
 650 }
 651
 652 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 653 {
 654         u32 result;
 655
 656         if (!sci_open(dev))
 657                 return -EIO;
 658
 659         result = sci_read(dev, SCI_TOUCHPAD, state);
 660         sci_close(dev);
 661         if (result == TOS_FAILURE)
 662                 pr_err("ACPI call to query the touchpad failed\n");
 663         else if (result == TOS_NOT_SUPPORTED)
 664                 return -ENODEV;
 665
 666         return result == TOS_SUCCESS ? 0 : -EIO;
 667 }
 668
 669 /* Eco Mode support */
 670 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 671 {
 672         acpi_status status;
 673         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 674         u32 out[TCI_WORDS];
 675
 676         dev->eco_supported = 0;
 677         dev->eco_led_registered = false;
 678
 679         status = tci_raw(dev, in, out);
 680         if (ACPI_FAILURE(status)) {
 681                 pr_err("ACPI call to get ECO led failed\n");
 682         } else if (out[0] == TOS_INPUT_DATA_ERROR) {
 683                 /*
 684                  * If we receive 0x8300 (Input Data Error), it means that the
 685                  * LED device is present, but that we just screwed the input
 686                  * parameters.
 687                  *
 688                  * Let's query the status of the LED to see if we really have a
 689                  * success response, indicating the actual presense of the LED,
 690                  * bail out otherwise.
 691                  */
 692                 in[3] = 1;
 693                 status = tci_raw(dev, in, out);
 694                 if (ACPI_FAILURE(status))
 695                         pr_err("ACPI call to get ECO led failed\n");
 696                 else if (out[0] == TOS_SUCCESS)
 697                         dev->eco_supported = 1;
 698         }
 699 }
 700
 701 static enum led_brightness
 702 toshiba_eco_mode_get_status(struct led_classdev *cdev)
 703 {
 704         struct toshiba_acpi_dev *dev = container_of(cdev,
 705                         struct toshiba_acpi_dev, eco_led);
 706         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 707         u32 out[TCI_WORDS];
 708         acpi_status status;
 709
 710         status = tci_raw(dev, in, out);
 711         if (ACPI_FAILURE(status)) {
 712                 pr_err("ACPI call to get ECO led failed\n");
 713                 return LED_OFF;
 714         } else if (out[0] != TOS_SUCCESS) {
 715                 return LED_OFF;
 716         }
 717
 718         return out[2] ? LED_FULL : LED_OFF;
 719 }
 720
 721 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 722                                      enum led_brightness brightness)
 723 {
 724         struct toshiba_acpi_dev *dev = container_of(cdev,
 725                         struct toshiba_acpi_dev, eco_led);
 726         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 727         u32 out[TCI_WORDS];
 728         acpi_status status;
 729
 730         /* Switch the Eco Mode led on/off */
 731         in[2] = (brightness) ? 1 : 0;
 732         status = tci_raw(dev, in, out);
 733         if (ACPI_FAILURE(status))
 734                 pr_err("ACPI call to set ECO led failed\n");
 735 }
 736
 737 /* Accelerometer support */
 738 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 739 {
 740         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 741         u32 out[TCI_WORDS];
 742         acpi_status status;
 743
 744         dev->accelerometer_supported = 0;
 745
 746         /*
 747          * Check if the accelerometer call exists,
 748          * this call also serves as initialization
 749          */
 750         status = tci_raw(dev, in, out);
 751         if (ACPI_FAILURE(status))
 752                 pr_err("ACPI call to query the accelerometer failed\n");
 753         else if (out[0] == TOS_SUCCESS)
 754                 dev->accelerometer_supported = 1;
 755 }
 756
 757 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 758                                      u32 *xy, u32 *z)
 759 {
 760         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 761         u32 out[TCI_WORDS];
 762         acpi_status status;
 763
 764         /* Check the Accelerometer status */
 765         status = tci_raw(dev, in, out);
 766         if (ACPI_FAILURE(status)) {
 767                 pr_err("ACPI call to query the accelerometer failed\n");
 768                 return -EIO;
 769         } else if (out[0] == TOS_NOT_SUPPORTED) {
 770                 return -ENODEV;
 771         } else if (out[0] == TOS_SUCCESS) {
 772                 *xy = out[2];
 773                 *z = out[4];
 774                 return 0;
 775         }
 776
 777         return -EIO;
 778 }
 779
 780 /* Sleep (Charge and Music) utilities support */
 781 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 782 {
 783         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 784         u32 out[TCI_WORDS];
 785         acpi_status status;
 786
 787         dev->usb_sleep_charge_supported = 0;
 788
 789         if (!sci_open(dev))
 790                 return;
 791
 792         status = tci_raw(dev, in, out);
 793         if (ACPI_FAILURE(status)) {
 794                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 795                 sci_close(dev);
 796                 return;
 797         } else if (out[0] == TOS_NOT_SUPPORTED) {
 798                 sci_close(dev);
 799                 return;
 800         } else if (out[0] == TOS_SUCCESS) {
 801                 dev->usbsc_mode_base = out[4];
 802         }
 803
 804         in[5] = SCI_USB_CHARGE_BAT_LVL;
 805         status = tci_raw(dev, in, out);
 806         sci_close(dev);
 807         if (ACPI_FAILURE(status)) {
 808                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 809         } else if (out[0] == TOS_SUCCESS) {
 810                 dev->usbsc_bat_level = out[2];
 811                 /* Flag as supported */
 812                 dev->usb_sleep_charge_supported = 1;
 813         }
 814
 815 }
 816
 817 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 818                                         u32 *mode)
 819 {
 820         u32 result;
 821
 822         if (!sci_open(dev))
 823                 return -EIO;
 824
 825         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 826         sci_close(dev);
 827         if (result == TOS_FAILURE)
 828                 pr_err("ACPI call to set USB S&C mode failed\n");
 829         else if (result == TOS_NOT_SUPPORTED)
 830                 return -ENODEV;
 831
 832         return result == TOS_SUCCESS ? 0 : -EIO;
 833 }
 834
 835 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 836                                         u32 mode)
 837 {
 838         u32 result;
 839
 840         if (!sci_open(dev))
 841                 return -EIO;
 842
 843         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 844         sci_close(dev);
 845         if (result == TOS_FAILURE)
 846                 pr_err("ACPI call to set USB S&C mode failed\n");
 847         else if (result == TOS_NOT_SUPPORTED)
 848                 return -ENODEV;
 849
 850         return result == TOS_SUCCESS ? 0 : -EIO;
 851 }
 852
 853 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 854                                               u32 *mode)
 855 {
 856         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 857         u32 out[TCI_WORDS];
 858         acpi_status status;
 859
 860         if (!sci_open(dev))
 861                 return -EIO;
 862
 863         in[5] = SCI_USB_CHARGE_BAT_LVL;
 864         status = tci_raw(dev, in, out);
 865         sci_close(dev);
 866         if (ACPI_FAILURE(status)) {
 867                 pr_err("ACPI call to get USB S&C battery level failed\n");
 868         } else if (out[0] == TOS_NOT_SUPPORTED) {
 869                 return -ENODEV;
 870         } else if (out[0] == TOS_SUCCESS) {
 871                 *mode = out[2];
 872                 return 0;
 873         }
 874
 875         return -EIO;
 876 }
 877
 878 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 879                                               u32 mode)
 880 {
 881         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 882         u32 out[TCI_WORDS];
 883         acpi_status status;
 884
 885         if (!sci_open(dev))
 886                 return -EIO;
 887
 888         in[2] = mode;
 889         in[5] = SCI_USB_CHARGE_BAT_LVL;
 890         status = tci_raw(dev, in, out);
 891         sci_close(dev);
 892         if (ACPI_FAILURE(status))
 893                 pr_err("ACPI call to set USB S&C battery level failed\n");
 894         else if (out[0] == TOS_NOT_SUPPORTED)
 895                 return -ENODEV;
 896
 897         return out[0] == TOS_SUCCESS ? 0 : -EIO;
 898 }
 899
 900 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 901                                         u32 *state)
 902 {
 903         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 904         u32 out[TCI_WORDS];
 905         acpi_status status;
 906
 907         if (!sci_open(dev))
 908                 return -EIO;
 909
 910         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 911         status = tci_raw(dev, in, out);
 912         sci_close(dev);
 913         if (ACPI_FAILURE(status)) {
 914                 pr_err("ACPI call to get USB Rapid Charge failed\n");
 915         } else if (out[0] == TOS_NOT_SUPPORTED) {
 916                 return -ENODEV;
 917         } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
 918                 *state = out[2];
 919                 return 0;
 920         }
 921
 922         return -EIO;
 923 }
 924
 925 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 926                                         u32 state)
 927 {
 928         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 929         u32 out[TCI_WORDS];
 930         acpi_status status;
 931
 932         if (!sci_open(dev))
 933                 return -EIO;
 934
 935         in[2] = state;
 936         in[5] = SCI_USB_CHARGE_RAPID_DSP;
 937         status = tci_raw(dev, in, out);
 938         sci_close(dev);
 939         if (ACPI_FAILURE(status))
 940                 pr_err("ACPI call to set USB Rapid Charge failed\n");
 941         else if (out[0] == TOS_NOT_SUPPORTED)
 942                 return -ENODEV;
 943
 944         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 945 }
 946
 947 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 948 {
 949         u32 result;
 950
 951         if (!sci_open(dev))
 952                 return -EIO;
 953
 954         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
 955         sci_close(dev);
 956         if (result == TOS_FAILURE)
 957                 pr_err("ACPI call to get Sleep and Music failed\n");
 958         else if (result == TOS_NOT_SUPPORTED)
 959                 return -ENODEV;
 960
 961         return result == TOS_SUCCESS ? 0 : -EIO;
 962 }
 963
 964 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
 965 {
 966         u32 result;
 967
 968         if (!sci_open(dev))
 969                 return -EIO;
 970
 971         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
 972         sci_close(dev);
 973         if (result == TOS_FAILURE)
 974                 pr_err("ACPI call to set Sleep and Music failed\n");
 975         else if (result == TOS_NOT_SUPPORTED)
 976                 return -ENODEV;
 977
 978         return result == TOS_SUCCESS ? 0 : -EIO;
 979 }
 980
 981 /* Keyboard function keys */
 982 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
 983 {
 984         u32 result;
 985
 986         if (!sci_open(dev))
 987                 return -EIO;
 988
 989         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
 990         sci_close(dev);
 991         if (result == TOS_FAILURE)
 992                 pr_err("ACPI call to get KBD function keys failed\n");
 993         else if (result == TOS_NOT_SUPPORTED)
 994                 return -ENODEV;
 995
 996         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
 997 }
 998
 999 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1000 {
1001         u32 result;
1002
1003         if (!sci_open(dev))
1004                 return -EIO;
1005
1006         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1007         sci_close(dev);
1008         if (result == TOS_FAILURE)
1009                 pr_err("ACPI call to set KBD function keys failed\n");
1010         else if (result == TOS_NOT_SUPPORTED)
1011                 return -ENODEV;
1012
1013         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1014 }
1015
1016 /* Panel Power ON */
1017 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1018 {
1019         u32 result;
1020
1021         if (!sci_open(dev))
1022                 return -EIO;
1023
1024         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1025         sci_close(dev);
1026         if (result == TOS_FAILURE)
1027                 pr_err("ACPI call to get Panel Power ON failed\n");
1028         else if (result == TOS_NOT_SUPPORTED)
1029                 return -ENODEV;
1030
1031         return result == TOS_SUCCESS ? 0 : -EIO;
1032 }
1033
1034 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1035 {
1036         u32 result;
1037
1038         if (!sci_open(dev))
1039                 return -EIO;
1040
1041         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1042         sci_close(dev);
1043         if (result == TOS_FAILURE)
1044                 pr_err("ACPI call to set Panel Power ON failed\n");
1045         else if (result == TOS_NOT_SUPPORTED)
1046                 return -ENODEV;
1047
1048         return result == TOS_SUCCESS ? 0 : -EIO;
1049 }
1050
1051 /* USB Three */
1052 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1053 {
1054         u32 result;
1055
1056         if (!sci_open(dev))
1057                 return -EIO;
1058
1059         result = sci_read(dev, SCI_USB_THREE, state);
1060         sci_close(dev);
1061         if (result == TOS_FAILURE)
1062                 pr_err("ACPI call to get USB 3 failed\n");
1063         else if (result == TOS_NOT_SUPPORTED)
1064                 return -ENODEV;
1065
1066         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1067 }
1068
1069 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1070 {
1071         u32 result;
1072
1073         if (!sci_open(dev))
1074                 return -EIO;
1075
1076         result = sci_write(dev, SCI_USB_THREE, state);
1077         sci_close(dev);
1078         if (result == TOS_FAILURE)
1079                 pr_err("ACPI call to set USB 3 failed\n");
1080         else if (result == TOS_NOT_SUPPORTED)
1081                 return -ENODEV;
1082
1083         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1084 }
1085
1086 /* Hotkey Event type */
1087 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1088                                          u32 *type)
1089 {
1090         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1091         u32 out[TCI_WORDS];
1092         acpi_status status;
1093
1094         status = tci_raw(dev, in, out);
1095         if (ACPI_FAILURE(status)) {
1096                 pr_err("ACPI call to get System type failed\n");
1097         } else if (out[0] == TOS_NOT_SUPPORTED) {
1098                 return -ENODEV;
1099         } else if (out[0] == TOS_SUCCESS) {
1100                 *type = out[3];
1101                 return 0;
1102         }
1103
1104         return -EIO;
1105 }
1106
1107 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1108 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1109 {
1110         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1111         u32 out[TCI_WORDS];
1112         acpi_status status;
1113
1114         in[3] = HCI_WIRELESS_STATUS;
1115         status = tci_raw(dev, in, out);
1116
1117         if (ACPI_FAILURE(status)) {
1118                 pr_err("ACPI call to get Wireless status failed\n");
1119                 return -EIO;
1120         }
1121
1122         if (out[0] == TOS_NOT_SUPPORTED)
1123                 return -ENODEV;
1124
1125         if (out[0] != TOS_SUCCESS)
1126                 return -EIO;
1127
1128         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1129
1130         return 0;
1131 }
1132
1133 /* WWAN */
1134 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1135 {
1136         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1137         u32 out[TCI_WORDS];
1138         acpi_status status;
1139
1140         dev->wwan_supported = 0;
1141
1142         /*
1143          * WWAN support can be queried by setting the in[3] value to
1144          * HCI_WIRELESS_WWAN (0x03).
1145          *
1146          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1147          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1148          *
1149          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1150          * or TOS_NOT_SUPPORTED (0x8000).
1151          */
1152         in[3] = HCI_WIRELESS_WWAN;
1153         status = tci_raw(dev, in, out);
1154
1155         if (ACPI_FAILURE(status)) {
1156                 pr_err("ACPI call to get WWAN status failed\n");
1157                 return;
1158         }
1159
1160         if (out[0] != TOS_SUCCESS)
1161                 return;
1162
1163         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1164 }
1165
1166 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1167 {
1168         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1169         u32 out[TCI_WORDS];
1170         acpi_status status;
1171
1172         in[3] = HCI_WIRELESS_WWAN_STATUS;
1173         status = tci_raw(dev, in, out);
1174
1175         if (ACPI_FAILURE(status)) {
1176                 pr_err("ACPI call to set WWAN status failed\n");
1177                 return -EIO;
1178         }
1179
1180         if (out[0] == TOS_NOT_SUPPORTED)
1181                 return -ENODEV;
1182
1183         if (out[0] != TOS_SUCCESS)
1184                 return -EIO;
1185
1186         /*
1187          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1188          * (de)activate the device, but some others need the
1189          * HCI_WIRELESS_WWAN_POWER call as well.
1190          */
1191         in[3] = HCI_WIRELESS_WWAN_POWER;
1192         status = tci_raw(dev, in, out);
1193
1194         if (ACPI_FAILURE(status)) {
1195                 pr_err("ACPI call to set WWAN power failed\n");
1196                 return -EIO;
1197         }
1198
1199         if (out[0] == TOS_NOT_SUPPORTED)
1200                 return -ENODEV;
1201
1202         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1203 }
1204
1205 /* Cooling Method */
1206 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1207 {
1208         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1209         u32 out[TCI_WORDS];
1210         acpi_status status;
1211
1212         dev->cooling_method_supported = 0;
1213         dev->max_cooling_method = 0;
1214
1215         status = tci_raw(dev, in, out);
1216         if (ACPI_FAILURE(status))
1217                 pr_err("ACPI call to get Cooling Method failed\n");
1218
1219         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1220                 return;
1221
1222         dev->cooling_method_supported = 1;
1223         dev->max_cooling_method = out[3];
1224 }
1225
1226 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1227 {
1228         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1229
1230         if (result == TOS_FAILURE)
1231                 pr_err("ACPI call to get Cooling Method failed\n");
1232
1233         if (result == TOS_NOT_SUPPORTED)
1234                 return -ENODEV;
1235
1236         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1237 }
1238
1239 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1240 {
1241         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1242
1243         if (result == TOS_FAILURE)
1244                 pr_err("ACPI call to get Cooling Method failed\n");
1245
1246         if (result == TOS_NOT_SUPPORTED)
1247                 return -ENODEV;
1248
1249         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1250 }
1251
1252 /* Transflective Backlight */
1253 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1254 {
1255         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1256
1257         if (result == TOS_FAILURE)
1258                 pr_err("ACPI call to get Transflective Backlight failed\n");
1259         else if (result == TOS_NOT_SUPPORTED)
1260                 return -ENODEV;
1261
1262         return result == TOS_SUCCESS ? 0 : -EIO;
1263 }
1264
1265 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1266 {
1267         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1268
1269         if (result == TOS_FAILURE)
1270                 pr_err("ACPI call to set Transflective Backlight failed\n");
1271         else if (result == TOS_NOT_SUPPORTED)
1272                 return -ENODEV;
1273
1274         return result == TOS_SUCCESS ? 0 : -EIO;
1275 }
1276
1277 static struct proc_dir_entry *toshiba_proc_dir;
1278
1279 /* LCD Brightness */
1280 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1281 {
1282         u32 result;
1283         u32 value;
1284         int brightness = 0;
1285
1286         if (dev->tr_backlight_supported) {
1287                 int ret = get_tr_backlight_status(dev, &value);
1288
1289                 if (ret)
1290                         return ret;
1291                 if (value)
1292                         return 0;
1293                 brightness++;
1294         }
1295
1296         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1297         if (result == TOS_FAILURE)
1298                 pr_err("ACPI call to get LCD Brightness failed\n");
1299         else if (result == TOS_NOT_SUPPORTED)
1300                 return -ENODEV;
1301         if (result == TOS_SUCCESS)
1302                 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1303
1304         return -EIO;
1305 }
1306
1307 static int get_lcd_brightness(struct backlight_device *bd)
1308 {
1309         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1310
1311         return __get_lcd_brightness(dev);
1312 }
1313
1314 static int lcd_proc_show(struct seq_file *m, void *v)
1315 {
1316         struct toshiba_acpi_dev *dev = m->private;
1317         int levels;
1318         int value;
1319
1320         if (!dev->backlight_dev)
1321                 return -ENODEV;
1322
1323         levels = dev->backlight_dev->props.max_brightness + 1;
1324         value = get_lcd_brightness(dev->backlight_dev);
1325         if (value >= 0) {
1326                 seq_printf(m, "brightness:              %d\n", value);
1327                 seq_printf(m, "brightness_levels:       %d\n", levels);
1328                 return 0;
1329         }
1330
1331         pr_err("Error reading LCD brightness\n");
1332
1333         return -EIO;
1334 }
1335
1336 static int lcd_proc_open(struct inode *inode, struct file *file)
1337 {
1338         return single_open(file, lcd_proc_show, PDE_DATA(inode));
1339 }
1340
1341 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1342 {
1343         u32 result;
1344
1345         if (dev->tr_backlight_supported) {
1346                 int ret = set_tr_backlight_status(dev, !value);
1347
1348                 if (ret)
1349                         return ret;
1350                 if (value)
1351                         value--;
1352         }
1353
1354         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1355         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1356         if (result == TOS_FAILURE)
1357                 pr_err("ACPI call to set LCD Brightness failed\n");
1358         else if (result == TOS_NOT_SUPPORTED)
1359                 return -ENODEV;
1360
1361         return result == TOS_SUCCESS ? 0 : -EIO;
1362 }
1363
1364 static int set_lcd_status(struct backlight_device *bd)
1365 {
1366         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1367
1368         return set_lcd_brightness(dev, bd->props.brightness);
1369 }
1370
1371 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1372                               size_t count, loff_t *pos)
1373 {
1374         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1375         char cmd[42];
1376         size_t len;
1377         int levels = dev->backlight_dev->props.max_brightness + 1;
1378         int value;
1379
1380         len = min(count, sizeof(cmd) - 1);
1381         if (copy_from_user(cmd, buf, len))
1382                 return -EFAULT;
1383         cmd[len] = '\0';
1384
1385         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1386             value < 0 && value > levels)
1387                 return -EINVAL;
1388
1389         if (set_lcd_brightness(dev, value))
1390                 return -EIO;
1391
1392         return count;
1393 }
1394
1395 static const struct file_operations lcd_proc_fops = {
1396         .owner          = THIS_MODULE,
1397         .open           = lcd_proc_open,
1398         .read           = seq_read,
1399         .llseek         = seq_lseek,
1400         .release        = single_release,
1401         .write          = lcd_proc_write,
1402 };
1403
1404 /* Video-Out */
1405 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1406 {
1407         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1408
1409         if (result == TOS_FAILURE)
1410                 pr_err("ACPI call to get Video-Out failed\n");
1411         else if (result == TOS_NOT_SUPPORTED)
1412                 return -ENODEV;
1413
1414         return result == TOS_SUCCESS ? 0 : -EIO;
1415 }
1416
1417 static int video_proc_show(struct seq_file *m, void *v)
1418 {
1419         struct toshiba_acpi_dev *dev = m->private;
1420         u32 value;
1421
1422         if (!get_video_status(dev, &value)) {
1423                 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1424                 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1425                 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1426
1427                 seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1428                 seq_printf(m, "crt_out:                 %d\n", is_crt);
1429                 seq_printf(m, "tv_out:                  %d\n", is_tv);
1430                 return 0;
1431         }
1432
1433         return -EIO;
1434 }
1435
1436 static int video_proc_open(struct inode *inode, struct file *file)
1437 {
1438         return single_open(file, video_proc_show, PDE_DATA(inode));
1439 }
1440
1441 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1442                                 size_t count, loff_t *pos)
1443 {
1444         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1445         char *buffer;
1446         char *cmd;
1447         int remain = count;
1448         int lcd_out = -1;
1449         int crt_out = -1;
1450         int tv_out = -1;
1451         int value;
1452         int ret;
1453         u32 video_out;
1454
1455         cmd = kmalloc(count + 1, GFP_KERNEL);
1456         if (!cmd)
1457                 return -ENOMEM;
1458         if (copy_from_user(cmd, buf, count)) {
1459                 kfree(cmd);
1460                 return -EFAULT;
1461         }
1462         cmd[count] = '\0';
1463
1464         buffer = cmd;
1465
1466         /*
1467          * Scan expression.  Multiple expressions may be delimited with ;
1468          * NOTE: To keep scanning simple, invalid fields are ignored.
1469          */
1470         while (remain) {
1471                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1472                         lcd_out = value & 1;
1473                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1474                         crt_out = value & 1;
1475                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1476                         tv_out = value & 1;
1477                 /* Advance to one character past the next ; */
1478                 do {
1479                         ++buffer;
1480                         --remain;
1481                 } while (remain && *(buffer - 1) != ';');
1482         }
1483
1484         kfree(cmd);
1485
1486         ret = get_video_status(dev, &video_out);
1487         if (!ret) {
1488                 unsigned int new_video_out = video_out;
1489
1490                 if (lcd_out != -1)
1491                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1492                 if (crt_out != -1)
1493                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1494                 if (tv_out != -1)
1495                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1496                 /*
1497                  * To avoid unnecessary video disruption, only write the new
1498                  * video setting if something changed.
1499                  */
1500                 if (new_video_out != video_out)
1501                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1502         }
1503
1504         return ret ? -EIO : count;
1505 }
1506
1507 static const struct file_operations video_proc_fops = {
1508         .owner          = THIS_MODULE,
1509         .open           = video_proc_open,
1510         .read           = seq_read,
1511         .llseek         = seq_lseek,
1512         .release        = single_release,
1513         .write          = video_proc_write,
1514 };
1515
1516 /* Fan status */
1517 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1518 {
1519         u32 result = hci_read(dev, HCI_FAN, status);
1520
1521         if (result == TOS_FAILURE)
1522                 pr_err("ACPI call to get Fan status failed\n");
1523         else if (result == TOS_NOT_SUPPORTED)
1524                 return -ENODEV;
1525
1526         return result == TOS_SUCCESS ? 0 : -EIO;
1527 }
1528
1529 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1530 {
1531         u32 result = hci_write(dev, HCI_FAN, status);
1532
1533         if (result == TOS_FAILURE)
1534                 pr_err("ACPI call to set Fan status failed\n");
1535         else if (result == TOS_NOT_SUPPORTED)
1536                 return -ENODEV;
1537
1538         return result == TOS_SUCCESS ? 0 : -EIO;
1539 }
1540
1541 static int fan_proc_show(struct seq_file *m, void *v)
1542 {
1543         struct toshiba_acpi_dev *dev = m->private;
1544         u32 value;
1545
1546         if (get_fan_status(dev, &value))
1547                 return -EIO;
1548
1549         seq_printf(m, "running:                 %d\n", (value > 0));
1550         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1551
1552         return 0;
1553 }
1554
1555 static int fan_proc_open(struct inode *inode, struct file *file)
1556 {
1557         return single_open(file, fan_proc_show, PDE_DATA(inode));
1558 }
1559
1560 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1561                               size_t count, loff_t *pos)
1562 {
1563         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1564         char cmd[42];
1565         size_t len;
1566         int value;
1567
1568         len = min(count, sizeof(cmd) - 1);
1569         if (copy_from_user(cmd, buf, len))
1570                 return -EFAULT;
1571         cmd[len] = '\0';
1572
1573         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1574             value != 0 && value != 1)
1575                 return -EINVAL;
1576
1577         if (set_fan_status(dev, value))
1578                 return -EIO;
1579
1580         dev->force_fan = value;
1581
1582         return count;
1583 }
1584
1585 static const struct file_operations fan_proc_fops = {
1586         .owner          = THIS_MODULE,
1587         .open           = fan_proc_open,
1588         .read           = seq_read,
1589         .llseek         = seq_lseek,
1590         .release        = single_release,
1591         .write          = fan_proc_write,
1592 };
1593
1594 static int keys_proc_show(struct seq_file *m, void *v)
1595 {
1596         struct toshiba_acpi_dev *dev = m->private;
1597
1598         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1599         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1600
1601         return 0;
1602 }
1603
1604 static int keys_proc_open(struct inode *inode, struct file *file)
1605 {
1606         return single_open(file, keys_proc_show, PDE_DATA(inode));
1607 }
1608
1609 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1610                                size_t count, loff_t *pos)
1611 {
1612         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1613         char cmd[42];
1614         size_t len;
1615         int value;
1616
1617         len = min(count, sizeof(cmd) - 1);
1618         if (copy_from_user(cmd, buf, len))
1619                 return -EFAULT;
1620         cmd[len] = '\0';
1621
1622         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1623                 dev->key_event_valid = 0;
1624         else
1625                 return -EINVAL;
1626
1627         return count;
1628 }
1629
1630 static const struct file_operations keys_proc_fops = {
1631         .owner          = THIS_MODULE,
1632         .open           = keys_proc_open,
1633         .read           = seq_read,
1634         .llseek         = seq_lseek,
1635         .release        = single_release,
1636         .write          = keys_proc_write,
1637 };
1638
1639 static int version_proc_show(struct seq_file *m, void *v)
1640 {
1641         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1642         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1643         return 0;
1644 }
1645
1646 static int version_proc_open(struct inode *inode, struct file *file)
1647 {
1648         return single_open(file, version_proc_show, PDE_DATA(inode));
1649 }
1650
1651 static const struct file_operations version_proc_fops = {
1652         .owner          = THIS_MODULE,
1653         .open           = version_proc_open,
1654         .read           = seq_read,
1655         .llseek         = seq_lseek,
1656         .release        = single_release,
1657 };
1658
1659 /*
1660  * Proc and module init
1661  */
1662
1663 #define PROC_TOSHIBA            "toshiba"
1664
1665 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1666 {
1667         if (dev->backlight_dev)
1668                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1669                                  &lcd_proc_fops, dev);
1670         if (dev->video_supported)
1671                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1672                                  &video_proc_fops, dev);
1673         if (dev->fan_supported)
1674                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1675                                  &fan_proc_fops, dev);
1676         if (dev->hotkey_dev)
1677                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1678                                  &keys_proc_fops, dev);
1679         proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1680                          &version_proc_fops, dev);
1681 }
1682
1683 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1684 {
1685         if (dev->backlight_dev)
1686                 remove_proc_entry("lcd", toshiba_proc_dir);
1687         if (dev->video_supported)
1688                 remove_proc_entry("video", toshiba_proc_dir);
1689         if (dev->fan_supported)
1690                 remove_proc_entry("fan", toshiba_proc_dir);
1691         if (dev->hotkey_dev)
1692                 remove_proc_entry("keys", toshiba_proc_dir);
1693         remove_proc_entry("version", toshiba_proc_dir);
1694 }
1695
1696 static const struct backlight_ops toshiba_backlight_data = {
1697         .options = BL_CORE_SUSPENDRESUME,
1698         .get_brightness = get_lcd_brightness,
1699         .update_status  = set_lcd_status,
1700 };
1701
1702 /* Keyboard backlight work */
1703 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1704
1705 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1706
1707 /*
1708  * Sysfs files
1709  */
1710 static ssize_t version_show(struct device *dev,
1711                             struct device_attribute *attr, char *buf)
1712 {
1713         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1714 }
1715 static DEVICE_ATTR_RO(version);
1716
1717 static ssize_t fan_store(struct device *dev,
1718                          struct device_attribute *attr,
1719                          const char *buf, size_t count)
1720 {
1721         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1722         int state;
1723         int ret;
1724
1725         ret = kstrtoint(buf, 0, &state);
1726         if (ret)
1727                 return ret;
1728
1729         if (state != 0 && state != 1)
1730                 return -EINVAL;
1731
1732         ret = set_fan_status(toshiba, state);
1733         if (ret)
1734                 return ret;
1735
1736         return count;
1737 }
1738
1739 static ssize_t fan_show(struct device *dev,
1740                         struct device_attribute *attr, char *buf)
1741 {
1742         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1743         u32 value;
1744         int ret;
1745
1746         ret = get_fan_status(toshiba, &value);
1747         if (ret)
1748                 return ret;
1749
1750         return sprintf(buf, "%d\n", value);
1751 }
1752 static DEVICE_ATTR_RW(fan);
1753
1754 static ssize_t kbd_backlight_mode_store(struct device *dev,
1755                                         struct device_attribute *attr,
1756                                         const char *buf, size_t count)
1757 {
1758         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1759         int mode;
1760         int ret;
1761
1762
1763         ret = kstrtoint(buf, 0, &mode);
1764         if (ret)
1765                 return ret;
1766
1767         /* Check for supported modes depending on keyboard backlight type */
1768         if (toshiba->kbd_type == 1) {
1769                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1770                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1771                         return -EINVAL;
1772         } else if (toshiba->kbd_type == 2) {
1773                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1774                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1775                     mode != SCI_KBD_MODE_OFF)
1776                         return -EINVAL;
1777         }
1778
1779         /*
1780          * Set the Keyboard Backlight Mode where:
1781          *      Auto - KBD backlight turns off automatically in given time
1782          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1783          *      ON   - KBD backlight is always on
1784          *      OFF  - KBD backlight is always off
1785          */
1786
1787         /* Only make a change if the actual mode has changed */
1788         if (toshiba->kbd_mode != mode) {
1789                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1790                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1791
1792                 /* OR the "base time" to the actual method format */
1793                 if (toshiba->kbd_type == 1) {
1794                         /* Type 1 requires the current mode */
1795                         time |= toshiba->kbd_mode;
1796                 } else if (toshiba->kbd_type == 2) {
1797                         /* Type 2 requires the desired mode */
1798                         time |= mode;
1799                 }
1800
1801                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1802                 if (ret)
1803                         return ret;
1804
1805                 toshiba->kbd_mode = mode;
1806
1807                 /*
1808                  * Some laptop models with the second generation backlit
1809                  * keyboard (type 2) do not generate the keyboard backlight
1810                  * changed event (0x92), and thus, the driver will never update
1811                  * the sysfs entries.
1812                  *
1813                  * The event is generated right when changing the keyboard
1814                  * backlight mode and the *notify function will set the
1815                  * kbd_event_generated to true.
1816                  *
1817                  * In case the event is not generated, schedule the keyboard
1818                  * backlight work to update the sysfs entries and emulate the
1819                  * event via genetlink.
1820                  */
1821                 if (toshiba->kbd_type == 2 &&
1822                     !toshiba_acpi->kbd_event_generated)
1823                         schedule_work(&kbd_bl_work);
1824         }
1825
1826         return count;
1827 }
1828
1829 static ssize_t kbd_backlight_mode_show(struct device *dev,
1830                                        struct device_attribute *attr,
1831                                        char *buf)
1832 {
1833         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1834         u32 time;
1835
1836         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1837                 return -EIO;
1838
1839         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1840 }
1841 static DEVICE_ATTR_RW(kbd_backlight_mode);
1842
1843 static ssize_t kbd_type_show(struct device *dev,
1844                              struct device_attribute *attr, char *buf)
1845 {
1846         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1847
1848         return sprintf(buf, "%d\n", toshiba->kbd_type);
1849 }
1850 static DEVICE_ATTR_RO(kbd_type);
1851
1852 static ssize_t available_kbd_modes_show(struct device *dev,
1853                                         struct device_attribute *attr,
1854                                         char *buf)
1855 {
1856         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1857
1858         if (toshiba->kbd_type == 1)
1859                 return sprintf(buf, "0x%x 0x%x\n",
1860                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1861
1862         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1863                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1864 }
1865 static DEVICE_ATTR_RO(available_kbd_modes);
1866
1867 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1868                                            struct device_attribute *attr,
1869                                            const char *buf, size_t count)
1870 {
1871         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1872         int time;
1873         int ret;
1874
1875         ret = kstrtoint(buf, 0, &time);
1876         if (ret)
1877                 return ret;
1878
1879         /* Check for supported values depending on kbd_type */
1880         if (toshiba->kbd_type == 1) {
1881                 if (time < 0 || time > 60)
1882                         return -EINVAL;
1883         } else if (toshiba->kbd_type == 2) {
1884                 if (time < 1 || time > 60)
1885                         return -EINVAL;
1886         }
1887
1888         /* Set the Keyboard Backlight Timeout */
1889
1890         /* Only make a change if the actual timeout has changed */
1891         if (toshiba->kbd_time != time) {
1892                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1893                 time = time << HCI_MISC_SHIFT;
1894                 /* OR the "base time" to the actual method format */
1895                 if (toshiba->kbd_type == 1)
1896                         time |= SCI_KBD_MODE_FNZ;
1897                 else if (toshiba->kbd_type == 2)
1898                         time |= SCI_KBD_MODE_AUTO;
1899
1900                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1901                 if (ret)
1902                         return ret;
1903
1904                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1905         }
1906
1907         return count;
1908 }
1909
1910 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1911                                           struct device_attribute *attr,
1912                                           char *buf)
1913 {
1914         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1915         u32 time;
1916
1917         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1918                 return -EIO;
1919
1920         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1921 }
1922 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1923
1924 static ssize_t touchpad_store(struct device *dev,
1925                               struct device_attribute *attr,
1926                               const char *buf, size_t count)
1927 {
1928         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1929         int state;
1930         int ret;
1931
1932         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1933         ret = kstrtoint(buf, 0, &state);
1934         if (ret)
1935                 return ret;
1936         if (state != 0 && state != 1)
1937                 return -EINVAL;
1938
1939         ret = toshiba_touchpad_set(toshiba, state);
1940         if (ret)
1941                 return ret;
1942
1943         return count;
1944 }
1945
1946 static ssize_t touchpad_show(struct device *dev,
1947                              struct device_attribute *attr, char *buf)
1948 {
1949         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1950         u32 state;
1951         int ret;
1952
1953         ret = toshiba_touchpad_get(toshiba, &state);
1954         if (ret < 0)
1955                 return ret;
1956
1957         return sprintf(buf, "%i\n", state);
1958 }
1959 static DEVICE_ATTR_RW(touchpad);
1960
1961 static ssize_t position_show(struct device *dev,
1962                              struct device_attribute *attr, char *buf)
1963 {
1964         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1965         u32 xyval, zval, tmp;
1966         u16 x, y, z;
1967         int ret;
1968
1969         xyval = zval = 0;
1970         ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1971         if (ret < 0)
1972                 return ret;
1973
1974         x = xyval & HCI_ACCEL_MASK;
1975         tmp = xyval >> HCI_MISC_SHIFT;
1976         y = tmp & HCI_ACCEL_MASK;
1977         z = zval & HCI_ACCEL_MASK;
1978
1979         return sprintf(buf, "%d %d %d\n", x, y, z);
1980 }
1981 static DEVICE_ATTR_RO(position);
1982
1983 static ssize_t usb_sleep_charge_show(struct device *dev,
1984                                      struct device_attribute *attr, char *buf)
1985 {
1986         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1987         u32 mode;
1988         int ret;
1989
1990         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1991         if (ret < 0)
1992                 return ret;
1993
1994         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1995 }
1996
1997 static ssize_t usb_sleep_charge_store(struct device *dev,
1998                                       struct device_attribute *attr,
1999                                       const char *buf, size_t count)
2000 {
2001         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2002         u32 mode;
2003         int state;
2004         int ret;
2005
2006         ret = kstrtoint(buf, 0, &state);
2007         if (ret)
2008                 return ret;
2009         /*
2010          * Check for supported values, where:
2011          * 0 - Disabled
2012          * 1 - Alternate (Non USB conformant devices that require more power)
2013          * 2 - Auto (USB conformant devices)
2014          * 3 - Typical
2015          */
2016         if (state != 0 && state != 1 && state != 2 && state != 3)
2017                 return -EINVAL;
2018
2019         /* Set the USB charging mode to internal value */
2020         mode = toshiba->usbsc_mode_base;
2021         if (state == 0)
2022                 mode |= SCI_USB_CHARGE_DISABLED;
2023         else if (state == 1)
2024                 mode |= SCI_USB_CHARGE_ALTERNATE;
2025         else if (state == 2)
2026                 mode |= SCI_USB_CHARGE_AUTO;
2027         else if (state == 3)
2028                 mode |= SCI_USB_CHARGE_TYPICAL;
2029
2030         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2031         if (ret)
2032                 return ret;
2033
2034         return count;
2035 }
2036 static DEVICE_ATTR_RW(usb_sleep_charge);
2037
2038 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2039                                                struct device_attribute *attr,
2040                                                char *buf)
2041 {
2042         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2043         u32 state;
2044         int bat_lvl;
2045         int status;
2046         int ret;
2047         int tmp;
2048
2049         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2050         if (ret < 0)
2051                 return ret;
2052
2053         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2054         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2055         status = (tmp == 0x4) ? 1 : 0;
2056         /* Determine the battery level set */
2057         bat_lvl = state >> HCI_MISC_SHIFT;
2058
2059         return sprintf(buf, "%d %d\n", status, bat_lvl);
2060 }
2061
2062 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2063                                                 struct device_attribute *attr,
2064                                                 const char *buf, size_t count)
2065 {
2066         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067         u32 status;
2068         int value;
2069         int ret;
2070         int tmp;
2071
2072         ret = kstrtoint(buf, 0, &value);
2073         if (ret)
2074                 return ret;
2075
2076         /*
2077          * Set the status of the function:
2078          * 0 - Disabled
2079          * 1-100 - Enabled
2080          */
2081         if (value < 0 || value > 100)
2082                 return -EINVAL;
2083
2084         if (value == 0) {
2085                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2086                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2087         } else {
2088                 tmp = value << HCI_MISC_SHIFT;
2089                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2090         }
2091         ret = toshiba_sleep_functions_status_set(toshiba, status);
2092         if (ret < 0)
2093                 return ret;
2094
2095         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2096
2097         return count;
2098 }
2099 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2100
2101 static ssize_t usb_rapid_charge_show(struct device *dev,
2102                                      struct device_attribute *attr, char *buf)
2103 {
2104         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2105         u32 state;
2106         int ret;
2107
2108         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2109         if (ret < 0)
2110                 return ret;
2111
2112         return sprintf(buf, "%d\n", state);
2113 }
2114
2115 static ssize_t usb_rapid_charge_store(struct device *dev,
2116                                       struct device_attribute *attr,
2117                                       const char *buf, size_t count)
2118 {
2119         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2120         int state;
2121         int ret;
2122
2123         ret = kstrtoint(buf, 0, &state);
2124         if (ret)
2125                 return ret;
2126         if (state != 0 && state != 1)
2127                 return -EINVAL;
2128
2129         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2130         if (ret)
2131                 return ret;
2132
2133         return count;
2134 }
2135 static DEVICE_ATTR_RW(usb_rapid_charge);
2136
2137 static ssize_t usb_sleep_music_show(struct device *dev,
2138                                     struct device_attribute *attr, char *buf)
2139 {
2140         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2141         u32 state;
2142         int ret;
2143
2144         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2145         if (ret < 0)
2146                 return ret;
2147
2148         return sprintf(buf, "%d\n", state);
2149 }
2150
2151 static ssize_t usb_sleep_music_store(struct device *dev,
2152                                      struct device_attribute *attr,
2153                                      const char *buf, size_t count)
2154 {
2155         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2156         int state;
2157         int ret;
2158
2159         ret = kstrtoint(buf, 0, &state);
2160         if (ret)
2161                 return ret;
2162         if (state != 0 && state != 1)
2163                 return -EINVAL;
2164
2165         ret = toshiba_usb_sleep_music_set(toshiba, state);
2166         if (ret)
2167                 return ret;
2168
2169         return count;
2170 }
2171 static DEVICE_ATTR_RW(usb_sleep_music);
2172
2173 static ssize_t kbd_function_keys_show(struct device *dev,
2174                                       struct device_attribute *attr, char *buf)
2175 {
2176         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2177         int mode;
2178         int ret;
2179
2180         ret = toshiba_function_keys_get(toshiba, &mode);
2181         if (ret < 0)
2182                 return ret;
2183
2184         return sprintf(buf, "%d\n", mode);
2185 }
2186
2187 static ssize_t kbd_function_keys_store(struct device *dev,
2188                                        struct device_attribute *attr,
2189                                        const char *buf, size_t count)
2190 {
2191         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192         int mode;
2193         int ret;
2194
2195         ret = kstrtoint(buf, 0, &mode);
2196         if (ret)
2197                 return ret;
2198         /*
2199          * Check for the function keys mode where:
2200          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2201          * 1 - Special functions (Opposite of the above setting)
2202          */
2203         if (mode != 0 && mode != 1)
2204                 return -EINVAL;
2205
2206         ret = toshiba_function_keys_set(toshiba, mode);
2207         if (ret)
2208                 return ret;
2209
2210         pr_info("Reboot for changes to KBD Function Keys to take effect");
2211
2212         return count;
2213 }
2214 static DEVICE_ATTR_RW(kbd_function_keys);
2215
2216 static ssize_t panel_power_on_show(struct device *dev,
2217                                    struct device_attribute *attr, char *buf)
2218 {
2219         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220         u32 state;
2221         int ret;
2222
2223         ret = toshiba_panel_power_on_get(toshiba, &state);
2224         if (ret < 0)
2225                 return ret;
2226
2227         return sprintf(buf, "%d\n", state);
2228 }
2229
2230 static ssize_t panel_power_on_store(struct device *dev,
2231                                     struct device_attribute *attr,
2232                                     const char *buf, size_t count)
2233 {
2234         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2235         int state;
2236         int ret;
2237
2238         ret = kstrtoint(buf, 0, &state);
2239         if (ret)
2240                 return ret;
2241         if (state != 0 && state != 1)
2242                 return -EINVAL;
2243
2244         ret = toshiba_panel_power_on_set(toshiba, state);
2245         if (ret)
2246                 return ret;
2247
2248         pr_info("Reboot for changes to Panel Power ON to take effect");
2249
2250         return count;
2251 }
2252 static DEVICE_ATTR_RW(panel_power_on);
2253
2254 static ssize_t usb_three_show(struct device *dev,
2255                               struct device_attribute *attr, char *buf)
2256 {
2257         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258         u32 state;
2259         int ret;
2260
2261         ret = toshiba_usb_three_get(toshiba, &state);
2262         if (ret < 0)
2263                 return ret;
2264
2265         return sprintf(buf, "%d\n", state);
2266 }
2267
2268 static ssize_t usb_three_store(struct device *dev,
2269                                struct device_attribute *attr,
2270                                const char *buf, size_t count)
2271 {
2272         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2273         int state;
2274         int ret;
2275
2276         ret = kstrtoint(buf, 0, &state);
2277         if (ret)
2278                 return ret;
2279         /*
2280          * Check for USB 3 mode where:
2281          * 0 - Disabled (Acts like a USB 2 port, saving power)
2282          * 1 - Enabled
2283          */
2284         if (state != 0 && state != 1)
2285                 return -EINVAL;
2286
2287         ret = toshiba_usb_three_set(toshiba, state);
2288         if (ret)
2289                 return ret;
2290
2291         pr_info("Reboot for changes to USB 3 to take effect");
2292
2293         return count;
2294 }
2295 static DEVICE_ATTR_RW(usb_three);
2296
2297 static ssize_t cooling_method_show(struct device *dev,
2298                                    struct device_attribute *attr, char *buf)
2299 {
2300         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301         int state;
2302         int ret;
2303
2304         ret = toshiba_cooling_method_get(toshiba, &state);
2305         if (ret < 0)
2306                 return ret;
2307
2308         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2309 }
2310
2311 static ssize_t cooling_method_store(struct device *dev,
2312                                     struct device_attribute *attr,
2313                                     const char *buf, size_t count)
2314 {
2315         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2316         int state;
2317         int ret;
2318
2319         ret = kstrtoint(buf, 0, &state);
2320         if (ret)
2321                 return ret;
2322
2323         /*
2324          * Check for supported values
2325          * Depending on the laptop model, some only support these two:
2326          * 0 - Maximum Performance
2327          * 1 - Battery Optimized
2328          *
2329          * While some others support all three methods:
2330          * 0 - Maximum Performance
2331          * 1 - Performance
2332          * 2 - Battery Optimized
2333          */
2334         if (state < 0 || state > toshiba->max_cooling_method)
2335                 return -EINVAL;
2336
2337         ret = toshiba_cooling_method_set(toshiba, state);
2338         if (ret)
2339                 return ret;
2340
2341         return count;
2342 }
2343 static DEVICE_ATTR_RW(cooling_method);
2344
2345 static struct attribute *toshiba_attributes[] = {
2346         &dev_attr_version.attr,
2347         &dev_attr_fan.attr,
2348         &dev_attr_kbd_backlight_mode.attr,
2349         &dev_attr_kbd_type.attr,
2350         &dev_attr_available_kbd_modes.attr,
2351         &dev_attr_kbd_backlight_timeout.attr,
2352         &dev_attr_touchpad.attr,
2353         &dev_attr_position.attr,
2354         &dev_attr_usb_sleep_charge.attr,
2355         &dev_attr_sleep_functions_on_battery.attr,
2356         &dev_attr_usb_rapid_charge.attr,
2357         &dev_attr_usb_sleep_music.attr,
2358         &dev_attr_kbd_function_keys.attr,
2359         &dev_attr_panel_power_on.attr,
2360         &dev_attr_usb_three.attr,
2361         &dev_attr_cooling_method.attr,
2362         NULL,
2363 };
2364
2365 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2366                                         struct attribute *attr, int idx)
2367 {
2368         struct device *dev = container_of(kobj, struct device, kobj);
2369         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2370         bool exists = true;
2371
2372         if (attr == &dev_attr_fan.attr)
2373                 exists = (drv->fan_supported) ? true : false;
2374         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2375                 exists = (drv->kbd_illum_supported) ? true : false;
2376         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2377                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2378         else if (attr == &dev_attr_touchpad.attr)
2379                 exists = (drv->touchpad_supported) ? true : false;
2380         else if (attr == &dev_attr_position.attr)
2381                 exists = (drv->accelerometer_supported) ? true : false;
2382         else if (attr == &dev_attr_usb_sleep_charge.attr)
2383                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2384         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2385                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2386         else if (attr == &dev_attr_usb_rapid_charge.attr)
2387                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2388         else if (attr == &dev_attr_usb_sleep_music.attr)
2389                 exists = (drv->usb_sleep_music_supported) ? true : false;
2390         else if (attr == &dev_attr_kbd_function_keys.attr)
2391                 exists = (drv->kbd_function_keys_supported) ? true : false;
2392         else if (attr == &dev_attr_panel_power_on.attr)
2393                 exists = (drv->panel_power_on_supported) ? true : false;
2394         else if (attr == &dev_attr_usb_three.attr)
2395                 exists = (drv->usb_three_supported) ? true : false;
2396         else if (attr == &dev_attr_cooling_method.attr)
2397                 exists = (drv->cooling_method_supported) ? true : false;
2398
2399         return exists ? attr->mode : 0;
2400 }
2401
2402 static struct attribute_group toshiba_attr_group = {
2403         .is_visible = toshiba_sysfs_is_visible,
2404         .attrs = toshiba_attributes,
2405 };
2406
2407 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2408 {
2409         struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2410
2411         /* Update the sysfs entries */
2412         if (sysfs_update_group(&acpi_dev->dev.kobj,
2413                                &toshiba_attr_group))
2414                 pr_err("Unable to update sysfs entries\n");
2415
2416         /* Emulate the keyboard backlight event */
2417         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2418                                         dev_name(&acpi_dev->dev),
2419                                         0x92, 0);
2420 }
2421
2422 /*
2423  * Misc device
2424  */
2425 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2426 {
2427         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2428                               regs->edx, regs->esi, regs->edi };
2429         u32 out[TCI_WORDS];
2430         acpi_status status;
2431
2432         status = tci_raw(toshiba_acpi, in, out);
2433         if (ACPI_FAILURE(status)) {
2434                 pr_err("ACPI call to query SMM registers failed\n");
2435                 return -EIO;
2436         }
2437
2438         /* Fillout the SMM struct with the TCI call results */
2439         regs->eax = out[0];
2440         regs->ebx = out[1];
2441         regs->ecx = out[2];
2442         regs->edx = out[3];
2443         regs->esi = out[4];
2444         regs->edi = out[5];
2445
2446         return 0;
2447 }
2448
2449 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2450                                unsigned long arg)
2451 {
2452         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2453         SMMRegisters regs;
2454         int ret;
2455
2456         if (!argp)
2457                 return -EINVAL;
2458
2459         switch (cmd) {
2460         case TOSH_SMM:
2461                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2462                         return -EFAULT;
2463                 ret = toshiba_acpi_smm_bridge(&regs);
2464                 if (ret)
2465                         return ret;
2466                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2467                         return -EFAULT;
2468                 break;
2469         case TOSHIBA_ACPI_SCI:
2470                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2471                         return -EFAULT;
2472                 /* Ensure we are being called with a SCI_{GET, SET} register */
2473                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2474                         return -EINVAL;
2475                 if (!sci_open(toshiba_acpi))
2476                         return -EIO;
2477                 ret = toshiba_acpi_smm_bridge(&regs);
2478                 sci_close(toshiba_acpi);
2479                 if (ret)
2480                         return ret;
2481                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2482                         return -EFAULT;
2483                 break;
2484         default:
2485                 return -EINVAL;
2486         }
2487
2488         return 0;
2489 }
2490
2491 static const struct file_operations toshiba_acpi_fops = {
2492         .owner          = THIS_MODULE,
2493         .unlocked_ioctl = toshiba_acpi_ioctl,
2494         .llseek         = noop_llseek,
2495 };
2496
2497 /*
2498  * WWAN RFKill handlers
2499  */
2500 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2501 {
2502         struct toshiba_acpi_dev *dev = data;
2503         int ret;
2504
2505         ret = toshiba_wireless_status(dev);
2506         if (ret)
2507                 return ret;
2508
2509         if (!dev->killswitch)
2510                 return 0;
2511
2512         return toshiba_wwan_set(dev, !blocked);
2513 }
2514
2515 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2516 {
2517         struct toshiba_acpi_dev *dev = data;
2518
2519         if (toshiba_wireless_status(dev))
2520                 return;
2521
2522         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2523 }
2524
2525 static const struct rfkill_ops wwan_rfk_ops = {
2526         .set_block = toshiba_acpi_wwan_set_block,
2527         .poll = toshiba_acpi_wwan_poll,
2528 };
2529
2530 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2531 {
2532         int ret = toshiba_wireless_status(dev);
2533
2534         if (ret)
2535                 return ret;
2536
2537         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2538                                      &dev->acpi_dev->dev,
2539                                      RFKILL_TYPE_WWAN,
2540                                      &wwan_rfk_ops,
2541                                      dev);
2542         if (!dev->wwan_rfk) {
2543                 pr_err("Unable to allocate WWAN rfkill device\n");
2544                 return -ENOMEM;
2545         }
2546
2547         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2548
2549         ret = rfkill_register(dev->wwan_rfk);
2550         if (ret) {
2551                 pr_err("Unable to register WWAN rfkill device\n");
2552                 rfkill_destroy(dev->wwan_rfk);
2553         }
2554
2555         return ret;
2556 }
2557
2558 /*
2559  * Hotkeys
2560  */
2561 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2562 {
2563         acpi_status status;
2564         u32 result;
2565
2566         status = acpi_evaluate_object(dev->acpi_dev->handle,
2567                                       "ENAB", NULL, NULL);
2568         if (ACPI_FAILURE(status))
2569                 return -ENODEV;
2570
2571         /*
2572          * Enable the "Special Functions" mode only if they are
2573          * supported and if they are activated.
2574          */
2575         if (dev->kbd_function_keys_supported && dev->special_functions)
2576                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2577                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2578         else
2579                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2580
2581         if (result == TOS_FAILURE)
2582                 return -EIO;
2583         else if (result == TOS_NOT_SUPPORTED)
2584                 return -ENODEV;
2585
2586         return 0;
2587 }
2588
2589 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2590                                       struct serio *port)
2591 {
2592         if (str & I8042_STR_AUXDATA)
2593                 return false;
2594
2595         if (unlikely(data == 0xe0))
2596                 return false;
2597
2598         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2599                 schedule_work(&toshiba_acpi->hotkey_work);
2600                 return true;
2601         }
2602
2603         return false;
2604 }
2605
2606 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2607 {
2608         acpi_handle ec_handle = ec_get_handle();
2609         acpi_status status;
2610
2611         if (!ec_handle)
2612                 return;
2613
2614         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2615         if (ACPI_FAILURE(status))
2616                 pr_err("ACPI NTFY method execution failed\n");
2617 }
2618
2619 /*
2620  * Returns hotkey scancode, or < 0 on failure.
2621  */
2622 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2623 {
2624         unsigned long long value;
2625         acpi_status status;
2626
2627         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2628                                       NULL, &value);
2629         if (ACPI_FAILURE(status)) {
2630                 pr_err("ACPI INFO method execution failed\n");
2631                 return -EIO;
2632         }
2633
2634         return value;
2635 }
2636
2637 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2638                                        int scancode)
2639 {
2640         if (scancode == 0x100)
2641                 return;
2642
2643         /* Act on key press; ignore key release */
2644         if (scancode & 0x80)
2645                 return;
2646
2647         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2648                 pr_info("Unknown key %x\n", scancode);
2649 }
2650
2651 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2652 {
2653         if (dev->info_supported) {
2654                 int scancode = toshiba_acpi_query_hotkey(dev);
2655
2656                 if (scancode < 0) {
2657                         pr_err("Failed to query hotkey event\n");
2658                 } else if (scancode != 0) {
2659                         toshiba_acpi_report_hotkey(dev, scancode);
2660                         dev->key_event_valid = 1;
2661                         dev->last_key_event = scancode;
2662                 }
2663         } else if (dev->system_event_supported) {
2664                 u32 result;
2665                 u32 value;
2666                 int retries = 3;
2667
2668                 do {
2669                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2670                         switch (result) {
2671                         case TOS_SUCCESS:
2672                                 toshiba_acpi_report_hotkey(dev, (int)value);
2673                                 dev->key_event_valid = 1;
2674                                 dev->last_key_event = value;
2675                                 break;
2676                         case TOS_NOT_SUPPORTED:
2677                                 /*
2678                                  * This is a workaround for an unresolved
2679                                  * issue on some machines where system events
2680                                  * sporadically become disabled.
2681                                  */
2682                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2683                                 if (result == TOS_SUCCESS)
2684                                         pr_notice("Re-enabled hotkeys\n");
2685                                 /* Fall through */
2686                         default:
2687                                 retries--;
2688                                 break;
2689                         }
2690                 } while (retries && result != TOS_FIFO_EMPTY);
2691         }
2692 }
2693
2694 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2695 {
2696         const struct key_entry *keymap = toshiba_acpi_keymap;
2697         acpi_handle ec_handle;
2698         int error;
2699
2700         if (disable_hotkeys) {
2701                 pr_info("Hotkeys disabled by module parameter\n");
2702                 return 0;
2703         }
2704
2705         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2706                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2707                 return 0;
2708         }
2709
2710         error = toshiba_acpi_enable_hotkeys(dev);
2711         if (error)
2712                 return error;
2713
2714         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2715                 pr_notice("Unable to query Hotkey Event Type\n");
2716
2717         dev->hotkey_dev = input_allocate_device();
2718         if (!dev->hotkey_dev)
2719                 return -ENOMEM;
2720
2721         dev->hotkey_dev->name = "Toshiba input device";
2722         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2723         dev->hotkey_dev->id.bustype = BUS_HOST;
2724
2725         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2726             !dev->kbd_function_keys_supported)
2727                 keymap = toshiba_acpi_keymap;
2728         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2729                  dev->kbd_function_keys_supported)
2730                 keymap = toshiba_acpi_alt_keymap;
2731         else
2732                 pr_info("Unknown event type received %x\n",
2733                         dev->hotkey_event_type);
2734         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2735         if (error)
2736                 goto err_free_dev;
2737
2738         /*
2739          * For some machines the SCI responsible for providing hotkey
2740          * notification doesn't fire. We can trigger the notification
2741          * whenever the Fn key is pressed using the NTFY method, if
2742          * supported, so if it's present set up an i8042 key filter
2743          * for this purpose.
2744          */
2745         ec_handle = ec_get_handle();
2746         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2747                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2748
2749                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2750                 if (error) {
2751                         pr_err("Error installing key filter\n");
2752                         goto err_free_keymap;
2753                 }
2754
2755                 dev->ntfy_supported = 1;
2756         }
2757
2758         /*
2759          * Determine hotkey query interface. Prefer using the INFO
2760          * method when it is available.
2761          */
2762         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2763                 dev->info_supported = 1;
2764         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2765                 dev->system_event_supported = 1;
2766
2767         if (!dev->info_supported && !dev->system_event_supported) {
2768                 pr_warn("No hotkey query interface found\n");
2769                 goto err_remove_filter;
2770         }
2771
2772         error = input_register_device(dev->hotkey_dev);
2773         if (error) {
2774                 pr_info("Unable to register input device\n");
2775                 goto err_remove_filter;
2776         }
2777
2778         return 0;
2779
2780  err_remove_filter:
2781         if (dev->ntfy_supported)
2782                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2783  err_free_keymap:
2784         sparse_keymap_free(dev->hotkey_dev);
2785  err_free_dev:
2786         input_free_device(dev->hotkey_dev);
2787         dev->hotkey_dev = NULL;
2788         return error;
2789 }
2790
2791 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2792 {
2793         struct backlight_properties props;
2794         int brightness;
2795         int ret;
2796
2797         /*
2798          * Some machines don't support the backlight methods at all, and
2799          * others support it read-only. Either of these is pretty useless,
2800          * so only register the backlight device if the backlight method
2801          * supports both reads and writes.
2802          */
2803         brightness = __get_lcd_brightness(dev);
2804         if (brightness < 0)
2805                 return 0;
2806         /*
2807          * If transflective backlight is supported and the brightness is zero
2808          * (lowest brightness level), the set_lcd_brightness function will
2809          * activate the transflective backlight, making the LCD appear to be
2810          * turned off, simply increment the brightness level to avoid that.
2811          */
2812         if (dev->tr_backlight_supported && brightness == 0)
2813                 brightness++;
2814         ret = set_lcd_brightness(dev, brightness);
2815         if (ret) {
2816                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2817                 return 0;
2818         }
2819
2820         /*
2821          * Tell acpi-video-detect code to prefer vendor backlight on all
2822          * systems with transflective backlight and on dmi matched systems.
2823          */
2824         if (dev->tr_backlight_supported ||
2825             dmi_check_system(toshiba_vendor_backlight_dmi))
2826                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2827
2828         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2829                 return 0;
2830
2831         memset(&props, 0, sizeof(props));
2832         props.type = BACKLIGHT_PLATFORM;
2833         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2834
2835         /* Adding an extra level and having 0 change to transflective mode */
2836         if (dev->tr_backlight_supported)
2837                 props.max_brightness++;
2838
2839         dev->backlight_dev = backlight_device_register("toshiba",
2840                                                        &dev->acpi_dev->dev,
2841                                                        dev,
2842                                                        &toshiba_backlight_data,
2843                                                        &props);
2844         if (IS_ERR(dev->backlight_dev)) {
2845                 ret = PTR_ERR(dev->backlight_dev);
2846                 pr_err("Could not register toshiba backlight device\n");
2847                 dev->backlight_dev = NULL;
2848                 return ret;
2849         }
2850
2851         dev->backlight_dev->props.brightness = brightness;
2852         return 0;
2853 }
2854
2855 static void print_supported_features(struct toshiba_acpi_dev *dev)
2856 {
2857         pr_info("Supported laptop features:");
2858
2859         if (dev->hotkey_dev)
2860                 pr_cont(" hotkeys");
2861         if (dev->backlight_dev)
2862                 pr_cont(" backlight");
2863         if (dev->video_supported)
2864                 pr_cont(" video-out");
2865         if (dev->fan_supported)
2866                 pr_cont(" fan");
2867         if (dev->tr_backlight_supported)
2868                 pr_cont(" transflective-backlight");
2869         if (dev->illumination_supported)
2870                 pr_cont(" illumination");
2871         if (dev->kbd_illum_supported)
2872                 pr_cont(" keyboard-backlight");
2873         if (dev->touchpad_supported)
2874                 pr_cont(" touchpad");
2875         if (dev->eco_supported)
2876                 pr_cont(" eco-led");
2877         if (dev->accelerometer_supported)
2878                 pr_cont(" accelerometer-axes");
2879         if (dev->usb_sleep_charge_supported)
2880                 pr_cont(" usb-sleep-charge");
2881         if (dev->usb_rapid_charge_supported)
2882                 pr_cont(" usb-rapid-charge");
2883         if (dev->usb_sleep_music_supported)
2884                 pr_cont(" usb-sleep-music");
2885         if (dev->kbd_function_keys_supported)
2886                 pr_cont(" special-function-keys");
2887         if (dev->panel_power_on_supported)
2888                 pr_cont(" panel-power-on");
2889         if (dev->usb_three_supported)
2890                 pr_cont(" usb3");
2891         if (dev->wwan_supported)
2892                 pr_cont(" wwan");
2893         if (dev->cooling_method_supported)
2894                 pr_cont(" cooling-method");
2895
2896         pr_cont("\n");
2897 }
2898
2899 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2900 {
2901         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2902
2903         misc_deregister(&dev->miscdev);
2904
2905         remove_toshiba_proc_entries(dev);
2906
2907         if (dev->sysfs_created)
2908                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2909                                    &toshiba_attr_group);
2910
2911         if (dev->ntfy_supported) {
2912                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2913                 cancel_work_sync(&dev->hotkey_work);
2914         }
2915
2916         if (dev->hotkey_dev) {
2917                 input_unregister_device(dev->hotkey_dev);
2918                 sparse_keymap_free(dev->hotkey_dev);
2919         }
2920
2921         backlight_device_unregister(dev->backlight_dev);
2922
2923         if (dev->illumination_led_registered)
2924                 led_classdev_unregister(&dev->led_dev);
2925
2926         if (dev->kbd_led_registered)
2927                 led_classdev_unregister(&dev->kbd_led);
2928
2929         if (dev->eco_led_registered)
2930                 led_classdev_unregister(&dev->eco_led);
2931
2932         if (dev->wwan_rfk) {
2933                 rfkill_unregister(dev->wwan_rfk);
2934                 rfkill_destroy(dev->wwan_rfk);
2935         }
2936
2937         if (toshiba_acpi)
2938                 toshiba_acpi = NULL;
2939
2940         kfree(dev);
2941
2942         return 0;
2943 }
2944
2945 static const char *find_hci_method(acpi_handle handle)
2946 {
2947         if (acpi_has_method(handle, "GHCI"))
2948                 return "GHCI";
2949
2950         if (acpi_has_method(handle, "SPFC"))
2951                 return "SPFC";
2952
2953         return NULL;
2954 }
2955
2956 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
2957 {
2958         struct toshiba_acpi_dev *dev;
2959         const char *hci_method;
2960         u32 dummy;
2961         int ret = 0;
2962
2963         if (toshiba_acpi)
2964                 return -EBUSY;
2965
2966         pr_info("Toshiba Laptop ACPI Extras version %s\n",
2967                TOSHIBA_ACPI_VERSION);
2968
2969         hci_method = find_hci_method(acpi_dev->handle);
2970         if (!hci_method) {
2971                 pr_err("HCI interface not found\n");
2972                 return -ENODEV;
2973         }
2974
2975         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2976         if (!dev)
2977                 return -ENOMEM;
2978         dev->acpi_dev = acpi_dev;
2979         dev->method_hci = hci_method;
2980         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
2981         dev->miscdev.name = "toshiba_acpi";
2982         dev->miscdev.fops = &toshiba_acpi_fops;
2983
2984         ret = misc_register(&dev->miscdev);
2985         if (ret) {
2986                 pr_err("Failed to register miscdevice\n");
2987                 kfree(dev);
2988                 return ret;
2989         }
2990
2991         acpi_dev->driver_data = dev;
2992         dev_set_drvdata(&acpi_dev->dev, dev);
2993
2994         /* Query the BIOS for supported features */
2995
2996         /*
2997          * The "Special Functions" are always supported by the laptops
2998          * with the new keyboard layout, query for its presence to help
2999          * determine the keymap layout to use.
3000          */
3001         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3002         dev->kbd_function_keys_supported = !ret;
3003
3004         dev->hotkey_event_type = 0;
3005         if (toshiba_acpi_setup_keyboard(dev))
3006                 pr_info("Unable to activate hotkeys\n");
3007
3008         /* Determine whether or not BIOS supports transflective backlight */
3009         ret = get_tr_backlight_status(dev, &dummy);
3010         dev->tr_backlight_supported = !ret;
3011
3012         ret = toshiba_acpi_setup_backlight(dev);
3013         if (ret)
3014                 goto error;
3015
3016         toshiba_illumination_available(dev);
3017         if (dev->illumination_supported) {
3018                 dev->led_dev.name = "toshiba::illumination";
3019                 dev->led_dev.max_brightness = 1;
3020                 dev->led_dev.brightness_set = toshiba_illumination_set;
3021                 dev->led_dev.brightness_get = toshiba_illumination_get;
3022                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3023                         dev->illumination_led_registered = true;
3024         }
3025
3026         toshiba_eco_mode_available(dev);
3027         if (dev->eco_supported) {
3028                 dev->eco_led.name = "toshiba::eco_mode";
3029                 dev->eco_led.max_brightness = 1;
3030                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3031                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3032                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3033                         dev->eco_led_registered = true;
3034         }
3035
3036         toshiba_kbd_illum_available(dev);
3037         /*
3038          * Only register the LED if KBD illumination is supported
3039          * and the keyboard backlight operation mode is set to FN-Z
3040          */
3041         if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3042                 dev->kbd_led.name = "toshiba::kbd_backlight";
3043                 dev->kbd_led.max_brightness = 1;
3044                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3045                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3046                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3047                         dev->kbd_led_registered = true;
3048         }
3049
3050         ret = toshiba_touchpad_get(dev, &dummy);
3051         dev->touchpad_supported = !ret;
3052
3053         toshiba_accelerometer_available(dev);
3054
3055         toshiba_usb_sleep_charge_available(dev);
3056
3057         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3058         dev->usb_rapid_charge_supported = !ret;
3059
3060         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3061         dev->usb_sleep_music_supported = !ret;
3062
3063         ret = toshiba_panel_power_on_get(dev, &dummy);
3064         dev->panel_power_on_supported = !ret;
3065
3066         ret = toshiba_usb_three_get(dev, &dummy);
3067         dev->usb_three_supported = !ret;
3068
3069         ret = get_video_status(dev, &dummy);
3070         dev->video_supported = !ret;
3071
3072         ret = get_fan_status(dev, &dummy);
3073         dev->fan_supported = !ret;
3074
3075         toshiba_wwan_available(dev);
3076         if (dev->wwan_supported)
3077                 toshiba_acpi_setup_wwan_rfkill(dev);
3078
3079         toshiba_cooling_method_available(dev);
3080
3081         print_supported_features(dev);
3082
3083         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3084                                  &toshiba_attr_group);
3085         if (ret) {
3086                 dev->sysfs_created = 0;
3087                 goto error;
3088         }
3089         dev->sysfs_created = !ret;
3090
3091         create_toshiba_proc_entries(dev);
3092
3093         toshiba_acpi = dev;
3094
3095         return 0;
3096
3097 error:
3098         toshiba_acpi_remove(acpi_dev);
3099         return ret;
3100 }
3101
3102 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3103 {
3104         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3105
3106         switch (event) {
3107         case 0x80: /* Hotkeys and some system events */
3108                 /*
3109                  * Machines with this WMI GUID aren't supported due to bugs in
3110                  * their AML.
3111                  *
3112                  * Return silently to avoid triggering a netlink event.
3113                  */
3114                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3115                         return;
3116                 toshiba_acpi_process_hotkeys(dev);
3117                 break;
3118         case 0x81: /* Dock events */
3119         case 0x82:
3120         case 0x83:
3121                 pr_info("Dock event received %x\n", event);
3122                 break;
3123         case 0x88: /* Thermal events */
3124                 pr_info("Thermal event received\n");
3125                 break;
3126         case 0x8f: /* LID closed */
3127         case 0x90: /* LID is closed and Dock has been ejected */
3128                 break;
3129         case 0x8c: /* SATA power events */
3130         case 0x8b:
3131                 pr_info("SATA power event received %x\n", event);
3132                 break;
3133         case 0x92: /* Keyboard backlight mode changed */
3134                 toshiba_acpi->kbd_event_generated = true;
3135                 /* Update sysfs entries */
3136                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3137                                        &toshiba_attr_group))
3138                         pr_err("Unable to update sysfs entries\n");
3139                 break;
3140         case 0x85: /* Unknown */
3141         case 0x8d: /* Unknown */
3142         case 0x8e: /* Unknown */
3143         case 0x94: /* Unknown */
3144         case 0x95: /* Unknown */
3145         default:
3146                 pr_info("Unknown event received %x\n", event);
3147                 break;
3148         }
3149
3150         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3151                                         dev_name(&acpi_dev->dev),
3152                                         event, (event == 0x80) ?
3153                                         dev->last_key_event : 0);
3154 }
3155
3156 #ifdef CONFIG_PM_SLEEP
3157 static int toshiba_acpi_suspend(struct device *device)
3158 {
3159         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3160
3161         if (dev->hotkey_dev) {
3162                 u32 result;
3163
3164                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3165                 if (result != TOS_SUCCESS)
3166                         pr_info("Unable to disable hotkeys\n");
3167         }
3168
3169         return 0;
3170 }
3171
3172 static int toshiba_acpi_resume(struct device *device)
3173 {
3174         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3175
3176         if (dev->hotkey_dev) {
3177                 if (toshiba_acpi_enable_hotkeys(dev))
3178                         pr_info("Unable to re-enable hotkeys\n");
3179         }
3180
3181         if (dev->wwan_rfk) {
3182                 if (!toshiba_wireless_status(dev))
3183                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3184         }
3185
3186         return 0;
3187 }
3188 #endif
3189
3190 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3191                          toshiba_acpi_suspend, toshiba_acpi_resume);
3192
3193 static struct acpi_driver toshiba_acpi_driver = {
3194         .name   = "Toshiba ACPI driver",
3195         .owner  = THIS_MODULE,
3196         .ids    = toshiba_device_ids,
3197         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3198         .ops    = {
3199                 .add            = toshiba_acpi_add,
3200                 .remove         = toshiba_acpi_remove,
3201                 .notify         = toshiba_acpi_notify,
3202         },
3203         .drv.pm = &toshiba_acpi_pm,
3204 };
3205
3206 static int __init toshiba_acpi_init(void)
3207 {
3208         int ret;
3209
3210         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3211         if (!toshiba_proc_dir) {
3212                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3213                 return -ENODEV;
3214         }
3215
3216         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3217         if (ret) {
3218                 pr_err("Failed to register ACPI driver: %d\n", ret);
3219                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3220         }
3221
3222         return ret;
3223 }
3224
3225 static void __exit toshiba_acpi_exit(void)
3226 {
3227         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3228         if (toshiba_proc_dir)
3229                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3230 }
3231
3232 module_init(toshiba_acpi_init);
3233 module_exit(toshiba_acpi_exit);