drivers/platform/x86/hp-wmi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * HP WMI hotkeys
   4  *
   5  * Copyright (C) 2008 Red Hat <mjg@redhat.com>
   6  * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi>
   7  *
   8  * Portions based on wistron_btns.c:
   9  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
  10  * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
  11  * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
  12  */
  13
  14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  15
  16 #include <linux/kernel.h>
  17 #include <linux/module.h>
  18 #include <linux/init.h>
  19 #include <linux/slab.h>
  20 #include <linux/types.h>
  21 #include <linux/input.h>
  22 #include <linux/input/sparse-keymap.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/platform_profile.h>
  25 #include <linux/hwmon.h>
  26 #include <linux/acpi.h>
  27 #include <linux/rfkill.h>
  28 #include <linux/string.h>
  29 #include <linux/dmi.h>
  30
  31 MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>");
  32 MODULE_DESCRIPTION("HP laptop WMI hotkeys driver");
  33 MODULE_LICENSE("GPL");
  34
  35 MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C");
  36 MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
  37
  38 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
  39 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
  40 #define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95
  41 #define zero_if_sup(tmp) (zero_insize_support?0:sizeof(tmp)) // use when zero insize is required
  42
  43 /* DMI board names of devices that should use the omen specific path for
  44  * thermal profiles.
  45  * This was obtained by taking a look in the windows omen command center
  46  * app and parsing a json file that they use to figure out what capabilities
  47  * the device should have.
  48  * A device is considered an omen if the DisplayName in that list contains
  49  * "OMEN", and it can use the thermal profile stuff if the "Feature" array
  50  * contains "PerformanceControl".
  51  */
  52 static const char * const omen_thermal_profile_boards[] = {
  53         "84DA", "84DB", "84DC", "8574", "8575", "860A", "87B5", "8572", "8573",
  54         "8600", "8601", "8602", "8605", "8606", "8607", "8746", "8747", "8749",
  55         "874A", "8603", "8604", "8748", "886B", "886C", "878A", "878B", "878C",
  56         "88C8", "88CB", "8786", "8787", "8788", "88D1", "88D2", "88F4", "88FD",
  57         "88F5", "88F6", "88F7", "88FE", "88FF", "8900", "8901", "8902", "8912",
  58         "8917", "8918", "8949", "894A", "89EB"
  59 };
  60
  61 /* DMI Board names of Omen laptops that are specifically set to be thermal
  62  * profile version 0 by the Omen Command Center app, regardless of what
  63  * the get system design information WMI call returns
  64  */
  65 static const char *const omen_thermal_profile_force_v0_boards[] = {
  66         "8607", "8746", "8747", "8749", "874A", "8748"
  67 };
  68
  69 enum hp_wmi_radio {
  70         HPWMI_WIFI      = 0x0,
  71         HPWMI_BLUETOOTH = 0x1,
  72         HPWMI_WWAN      = 0x2,
  73         HPWMI_GPS       = 0x3,
  74 };
  75
  76 enum hp_wmi_event_ids {
  77         HPWMI_DOCK_EVENT                = 0x01,
  78         HPWMI_PARK_HDD                  = 0x02,
  79         HPWMI_SMART_ADAPTER             = 0x03,
  80         HPWMI_BEZEL_BUTTON              = 0x04,
  81         HPWMI_WIRELESS                  = 0x05,
  82         HPWMI_CPU_BATTERY_THROTTLE      = 0x06,
  83         HPWMI_LOCK_SWITCH               = 0x07,
  84         HPWMI_LID_SWITCH                = 0x08,
  85         HPWMI_SCREEN_ROTATION           = 0x09,
  86         HPWMI_COOLSENSE_SYSTEM_MOBILE   = 0x0A,
  87         HPWMI_COOLSENSE_SYSTEM_HOT      = 0x0B,
  88         HPWMI_PROXIMITY_SENSOR          = 0x0C,
  89         HPWMI_BACKLIT_KB_BRIGHTNESS     = 0x0D,
  90         HPWMI_PEAKSHIFT_PERIOD          = 0x0F,
  91         HPWMI_BATTERY_CHARGE_PERIOD     = 0x10,
  92         HPWMI_SANITIZATION_MODE         = 0x17,
  93 };
  94
  95 /*
  96  * struct bios_args buffer is dynamically allocated.  New WMI command types
  97  * were introduced that exceeds 128-byte data size.  Changes to handle
  98  * the data size allocation scheme were kept in hp_wmi_perform_qurey function.
  99  */
 100 struct bios_args {
 101         u32 signature;
 102         u32 command;
 103         u32 commandtype;
 104         u32 datasize;
 105         u8 data[];
 106 };
 107
 108 enum hp_wmi_commandtype {
 109         HPWMI_DISPLAY_QUERY             = 0x01,
 110         HPWMI_HDDTEMP_QUERY             = 0x02,
 111         HPWMI_ALS_QUERY                 = 0x03,
 112         HPWMI_HARDWARE_QUERY            = 0x04,
 113         HPWMI_WIRELESS_QUERY            = 0x05,
 114         HPWMI_BATTERY_QUERY             = 0x07,
 115         HPWMI_BIOS_QUERY                = 0x09,
 116         HPWMI_FEATURE_QUERY             = 0x0b,
 117         HPWMI_HOTKEY_QUERY              = 0x0c,
 118         HPWMI_FEATURE2_QUERY            = 0x0d,
 119         HPWMI_WIRELESS2_QUERY           = 0x1b,
 120         HPWMI_POSTCODEERROR_QUERY       = 0x2a,
 121         HPWMI_SYSTEM_DEVICE_MODE        = 0x40,
 122         HPWMI_THERMAL_PROFILE_QUERY     = 0x4c,
 123 };
 124
 125 enum hp_wmi_gm_commandtype {
 126         HPWMI_FAN_SPEED_GET_QUERY = 0x11,
 127         HPWMI_SET_PERFORMANCE_MODE = 0x1A,
 128         HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26,
 129         HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27,
 130         HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28,
 131 };
 132
 133 enum hp_wmi_command {
 134         HPWMI_READ      = 0x01,
 135         HPWMI_WRITE     = 0x02,
 136         HPWMI_ODM       = 0x03,
 137         HPWMI_GM        = 0x20008,
 138 };
 139
 140 enum hp_wmi_hardware_mask {
 141         HPWMI_DOCK_MASK         = 0x01,
 142         HPWMI_TABLET_MASK       = 0x04,
 143 };
 144
 145 struct bios_return {
 146         u32 sigpass;
 147         u32 return_code;
 148 };
 149
 150 enum hp_return_value {
 151         HPWMI_RET_WRONG_SIGNATURE       = 0x02,
 152         HPWMI_RET_UNKNOWN_COMMAND       = 0x03,
 153         HPWMI_RET_UNKNOWN_CMDTYPE       = 0x04,
 154         HPWMI_RET_INVALID_PARAMETERS    = 0x05,
 155 };
 156
 157 enum hp_wireless2_bits {
 158         HPWMI_POWER_STATE       = 0x01,
 159         HPWMI_POWER_SOFT        = 0x02,
 160         HPWMI_POWER_BIOS        = 0x04,
 161         HPWMI_POWER_HARD        = 0x08,
 162         HPWMI_POWER_FW_OR_HW    = HPWMI_POWER_BIOS | HPWMI_POWER_HARD,
 163 };
 164
 165 enum hp_thermal_profile_omen_v0 {
 166         HP_OMEN_V0_THERMAL_PROFILE_DEFAULT     = 0x00,
 167         HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01,
 168         HP_OMEN_V0_THERMAL_PROFILE_COOL        = 0x02,
 169 };
 170
 171 enum hp_thermal_profile_omen_v1 {
 172         HP_OMEN_V1_THERMAL_PROFILE_DEFAULT      = 0x30,
 173         HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE  = 0x31,
 174         HP_OMEN_V1_THERMAL_PROFILE_COOL         = 0x50,
 175 };
 176
 177 enum hp_thermal_profile {
 178         HP_THERMAL_PROFILE_PERFORMANCE  = 0x00,
 179         HP_THERMAL_PROFILE_DEFAULT              = 0x01,
 180         HP_THERMAL_PROFILE_COOL                 = 0x02
 181 };
 182
 183 #define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW)
 184 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT)
 185
 186 struct bios_rfkill2_device_state {
 187         u8 radio_type;
 188         u8 bus_type;
 189         u16 vendor_id;
 190         u16 product_id;
 191         u16 subsys_vendor_id;
 192         u16 subsys_product_id;
 193         u8 rfkill_id;
 194         u8 power;
 195         u8 unknown[4];
 196 };
 197
 198 /* 7 devices fit into the 128 byte buffer */
 199 #define HPWMI_MAX_RFKILL2_DEVICES       7
 200
 201 struct bios_rfkill2_state {
 202         u8 unknown[7];
 203         u8 count;
 204         u8 pad[8];
 205         struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES];
 206 };
 207
 208 static const struct key_entry hp_wmi_keymap[] = {
 209         { KE_KEY, 0x02,   { KEY_BRIGHTNESSUP } },
 210         { KE_KEY, 0x03,   { KEY_BRIGHTNESSDOWN } },
 211         { KE_KEY, 0x20e6, { KEY_PROG1 } },
 212         { KE_KEY, 0x20e8, { KEY_MEDIA } },
 213         { KE_KEY, 0x2142, { KEY_MEDIA } },
 214         { KE_KEY, 0x213b, { KEY_INFO } },
 215         { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
 216         { KE_KEY, 0x216a, { KEY_SETUP } },
 217         { KE_KEY, 0x231b, { KEY_HELP } },
 218         { KE_END, 0 }
 219 };
 220
 221 static struct input_dev *hp_wmi_input_dev;
 222 static struct platform_device *hp_wmi_platform_dev;
 223 static struct platform_profile_handler platform_profile_handler;
 224 static bool platform_profile_support;
 225 static bool zero_insize_support;
 226
 227 static struct rfkill *wifi_rfkill;
 228 static struct rfkill *bluetooth_rfkill;
 229 static struct rfkill *wwan_rfkill;
 230
 231 struct rfkill2_device {
 232         u8 id;
 233         int num;
 234         struct rfkill *rfkill;
 235 };
 236
 237 static int rfkill2_count;
 238 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
 239
 240 /*
 241  * Chassis Types values were obtained from SMBIOS reference
 242  * specification version 3.00. A complete list of system enclosures
 243  * and chassis types is available on Table 17.
 244  */
 245 static const char * const tablet_chassis_types[] = {
 246         "30", /* Tablet*/
 247         "31", /* Convertible */
 248         "32"  /* Detachable */
 249 };
 250
 251 #define DEVICE_MODE_TABLET      0x06
 252
 253 /* map output size to the corresponding WMI method id */
 254 static inline int encode_outsize_for_pvsz(int outsize)
 255 {
 256         if (outsize > 4096)
 257                 return -EINVAL;
 258         if (outsize > 1024)
 259                 return 5;
 260         if (outsize > 128)
 261                 return 4;
 262         if (outsize > 4)
 263                 return 3;
 264         if (outsize > 0)
 265                 return 2;
 266         return 1;
 267 }
 268
 269 /*
 270  * hp_wmi_perform_query
 271  *
 272  * query:       The commandtype (enum hp_wmi_commandtype)
 273  * write:       The command (enum hp_wmi_command)
 274  * buffer:      Buffer used as input and/or output
 275  * insize:      Size of input buffer
 276  * outsize:     Size of output buffer
 277  *
 278  * returns zero on success
 279  *         an HP WMI query specific error code (which is positive)
 280  *         -EINVAL if the query was not successful at all
 281  *         -EINVAL if the output buffer size exceeds buffersize
 282  *
 283  * Note: The buffersize must at least be the maximum of the input and output
 284  *       size. E.g. Battery info query is defined to have 1 byte input
 285  *       and 128 byte output. The caller would do:
 286  *       buffer = kzalloc(128, GFP_KERNEL);
 287  *       ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
 288  */
 289 static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
 290                                 void *buffer, int insize, int outsize)
 291 {
 292         struct acpi_buffer input, output = { ACPI_ALLOCATE_BUFFER, NULL };
 293         struct bios_return *bios_return;
 294         union acpi_object *obj = NULL;
 295         struct bios_args *args = NULL;
 296         int mid, actual_insize, actual_outsize;
 297         size_t bios_args_size;
 298         int ret;
 299
 300         mid = encode_outsize_for_pvsz(outsize);
 301         if (WARN_ON(mid < 0))
 302                 return mid;
 303
 304         actual_insize = max(insize, 128);
 305         bios_args_size = struct_size(args, data, actual_insize);
 306         args = kmalloc(bios_args_size, GFP_KERNEL);
 307         if (!args)
 308                 return -ENOMEM;
 309
 310         input.length = bios_args_size;
 311         input.pointer = args;
 312
 313         args->signature = 0x55434553;
 314         args->command = command;
 315         args->commandtype = query;
 316         args->datasize = insize;
 317         memcpy(args->data, buffer, flex_array_size(args, data, insize));
 318
 319         ret = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output);
 320         if (ret)
 321                 goto out_free;
 322
 323         obj = output.pointer;
 324         if (!obj) {
 325                 ret = -EINVAL;
 326                 goto out_free;
 327         }
 328
 329         if (obj->type != ACPI_TYPE_BUFFER) {
 330                 pr_warn("query 0x%x returned an invalid object 0x%x\n", query, ret);
 331                 ret = -EINVAL;
 332                 goto out_free;
 333         }
 334
 335         bios_return = (struct bios_return *)obj->buffer.pointer;
 336         ret = bios_return->return_code;
 337
 338         if (ret) {
 339                 if (ret != HPWMI_RET_UNKNOWN_COMMAND &&
 340                     ret != HPWMI_RET_UNKNOWN_CMDTYPE)
 341                         pr_warn("query 0x%x returned error 0x%x\n", query, ret);
 342                 goto out_free;
 343         }
 344
 345         /* Ignore output data of zero size */
 346         if (!outsize)
 347                 goto out_free;
 348
 349         actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return)));
 350         memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize);
 351         memset(buffer + actual_outsize, 0, outsize - actual_outsize);
 352
 353 out_free:
 354         kfree(obj);
 355         kfree(args);
 356         return ret;
 357 }
 358
 359 static int hp_wmi_get_fan_speed(int fan)
 360 {
 361         u8 fsh, fsl;
 362         char fan_data[4] = { fan, 0, 0, 0 };
 363
 364         int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM,
 365                                        &fan_data, sizeof(char),
 366                                        sizeof(fan_data));
 367
 368         if (ret != 0)
 369                 return -EINVAL;
 370
 371         fsh = fan_data[2];
 372         fsl = fan_data[3];
 373
 374         return (fsh << 8) | fsl;
 375 }
 376
 377 static int hp_wmi_read_int(int query)
 378 {
 379         int val = 0, ret;
 380
 381         ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
 382                                    zero_if_sup(val), sizeof(val));
 383
 384         if (ret)
 385                 return ret < 0 ? ret : -EINVAL;
 386
 387         return val;
 388 }
 389
 390 static int hp_wmi_get_dock_state(void)
 391 {
 392         int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY);
 393
 394         if (state < 0)
 395                 return state;
 396
 397         return !!(state & HPWMI_DOCK_MASK);
 398 }
 399
 400 static int hp_wmi_get_tablet_mode(void)
 401 {
 402         char system_device_mode[4] = { 0 };
 403         const char *chassis_type;
 404         bool tablet_found;
 405         int ret;
 406
 407         chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
 408         if (!chassis_type)
 409                 return -ENODEV;
 410
 411         tablet_found = match_string(tablet_chassis_types,
 412                                     ARRAY_SIZE(tablet_chassis_types),
 413                                     chassis_type) >= 0;
 414         if (!tablet_found)
 415                 return -ENODEV;
 416
 417         ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ,
 418                                    system_device_mode, zero_if_sup(system_device_mode),
 419                                    sizeof(system_device_mode));
 420         if (ret < 0)
 421                 return ret;
 422
 423         return system_device_mode[0] == DEVICE_MODE_TABLET;
 424 }
 425
 426 static int omen_thermal_profile_set(int mode)
 427 {
 428         char buffer[2] = {0, mode};
 429         int ret;
 430
 431         ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM,
 432                                    &buffer, sizeof(buffer), 0);
 433
 434         if (ret)
 435                 return ret < 0 ? ret : -EINVAL;
 436
 437         return mode;
 438 }
 439
 440 static bool is_omen_thermal_profile(void)
 441 {
 442         const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
 443
 444         if (!board_name)
 445                 return false;
 446
 447         return match_string(omen_thermal_profile_boards,
 448                             ARRAY_SIZE(omen_thermal_profile_boards),
 449                             board_name) >= 0;
 450 }
 451
 452 static int omen_get_thermal_policy_version(void)
 453 {
 454         unsigned char buffer[8] = { 0 };
 455         int ret;
 456
 457         const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
 458
 459         if (board_name) {
 460                 int matches = match_string(omen_thermal_profile_force_v0_boards,
 461                         ARRAY_SIZE(omen_thermal_profile_force_v0_boards),
 462                         board_name);
 463                 if (matches >= 0)
 464                         return 0;
 465         }
 466
 467         ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM,
 468                                    &buffer, sizeof(buffer), sizeof(buffer));
 469
 470         if (ret)
 471                 return ret < 0 ? ret : -EINVAL;
 472
 473         return buffer[3];
 474 }
 475
 476 static int omen_thermal_profile_get(void)
 477 {
 478         u8 data;
 479
 480         int ret = ec_read(HP_OMEN_EC_THERMAL_PROFILE_OFFSET, &data);
 481
 482         if (ret)
 483                 return ret;
 484
 485         return data;
 486 }
 487
 488 static int hp_wmi_fan_speed_max_set(int enabled)
 489 {
 490         int ret;
 491
 492         ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM,
 493                                    &enabled, sizeof(enabled), 0);
 494
 495         if (ret)
 496                 return ret < 0 ? ret : -EINVAL;
 497
 498         return enabled;
 499 }
 500
 501 static int hp_wmi_fan_speed_max_get(void)
 502 {
 503         int val = 0, ret;
 504
 505         ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM,
 506                                    &val, zero_if_sup(val), sizeof(val));
 507
 508         if (ret)
 509                 return ret < 0 ? ret : -EINVAL;
 510
 511         return val;
 512 }
 513
 514 static int __init hp_wmi_bios_2008_later(void)
 515 {
 516         int state = 0;
 517         int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
 518                                        zero_if_sup(state), sizeof(state));
 519         if (!ret)
 520                 return 1;
 521
 522         return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
 523 }
 524
 525 static int __init hp_wmi_bios_2009_later(void)
 526 {
 527         u8 state[128];
 528         int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
 529                                        zero_if_sup(state), sizeof(state));
 530         if (!ret)
 531                 return 1;
 532
 533         return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO;
 534 }
 535
 536 static int __init hp_wmi_enable_hotkeys(void)
 537 {
 538         int value = 0x6e;
 539         int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
 540                                        sizeof(value), 0);
 541
 542         return ret <= 0 ? ret : -EINVAL;
 543 }
 544
 545 static int hp_wmi_set_block(void *data, bool blocked)
 546 {
 547         enum hp_wmi_radio r = (enum hp_wmi_radio) data;
 548         int query = BIT(r + 8) | ((!blocked) << r);
 549         int ret;
 550
 551         ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
 552                                    &query, sizeof(query), 0);
 553
 554         return ret <= 0 ? ret : -EINVAL;
 555 }
 556
 557 static const struct rfkill_ops hp_wmi_rfkill_ops = {
 558         .set_block = hp_wmi_set_block,
 559 };
 560
 561 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
 562 {
 563         int mask = 0x200 << (r * 8);
 564
 565         int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
 566
 567         /* TBD: Pass error */
 568         WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
 569
 570         return !(wireless & mask);
 571 }
 572
 573 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
 574 {
 575         int mask = 0x800 << (r * 8);
 576
 577         int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
 578
 579         /* TBD: Pass error */
 580         WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY");
 581
 582         return !(wireless & mask);
 583 }
 584
 585 static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
 586 {
 587         int rfkill_id = (int)(long)data;
 588         char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
 589         int ret;
 590
 591         ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
 592                                    buffer, sizeof(buffer), 0);
 593
 594         return ret <= 0 ? ret : -EINVAL;
 595 }
 596
 597 static const struct rfkill_ops hp_wmi_rfkill2_ops = {
 598         .set_block = hp_wmi_rfkill2_set_block,
 599 };
 600
 601 static int hp_wmi_rfkill2_refresh(void)
 602 {
 603         struct bios_rfkill2_state state;
 604         int err, i;
 605
 606         err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
 607                                    zero_if_sup(state), sizeof(state));
 608         if (err)
 609                 return err;
 610
 611         for (i = 0; i < rfkill2_count; i++) {
 612                 int num = rfkill2[i].num;
 613                 struct bios_rfkill2_device_state *devstate;
 614
 615                 devstate = &state.device[num];
 616
 617                 if (num >= state.count ||
 618                     devstate->rfkill_id != rfkill2[i].id) {
 619                         pr_warn("power configuration of the wireless devices unexpectedly changed\n");
 620                         continue;
 621                 }
 622
 623                 rfkill_set_states(rfkill2[i].rfkill,
 624                                   IS_SWBLOCKED(devstate->power),
 625                                   IS_HWBLOCKED(devstate->power));
 626         }
 627
 628         return 0;
 629 }
 630
 631 static ssize_t display_show(struct device *dev, struct device_attribute *attr,
 632                             char *buf)
 633 {
 634         int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
 635
 636         if (value < 0)
 637                 return value;
 638         return sprintf(buf, "%d\n", value);
 639 }
 640
 641 static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
 642                             char *buf)
 643 {
 644         int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
 645
 646         if (value < 0)
 647                 return value;
 648         return sprintf(buf, "%d\n", value);
 649 }
 650
 651 static ssize_t als_show(struct device *dev, struct device_attribute *attr,
 652                         char *buf)
 653 {
 654         int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
 655
 656         if (value < 0)
 657                 return value;
 658         return sprintf(buf, "%d\n", value);
 659 }
 660
 661 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 662                          char *buf)
 663 {
 664         int value = hp_wmi_get_dock_state();
 665
 666         if (value < 0)
 667                 return value;
 668         return sprintf(buf, "%d\n", value);
 669 }
 670
 671 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
 672                            char *buf)
 673 {
 674         int value = hp_wmi_get_tablet_mode();
 675
 676         if (value < 0)
 677                 return value;
 678         return sprintf(buf, "%d\n", value);
 679 }
 680
 681 static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
 682                              char *buf)
 683 {
 684         /* Get the POST error code of previous boot failure. */
 685         int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
 686
 687         if (value < 0)
 688                 return value;
 689         return sprintf(buf, "0x%x\n", value);
 690 }
 691
 692 static ssize_t als_store(struct device *dev, struct device_attribute *attr,
 693                          const char *buf, size_t count)
 694 {
 695         u32 tmp;
 696         int ret;
 697
 698         ret = kstrtou32(buf, 10, &tmp);
 699         if (ret)
 700                 return ret;
 701
 702         ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
 703                                        sizeof(tmp), 0);
 704         if (ret)
 705                 return ret < 0 ? ret : -EINVAL;
 706
 707         return count;
 708 }
 709
 710 static ssize_t postcode_store(struct device *dev, struct device_attribute *attr,
 711                               const char *buf, size_t count)
 712 {
 713         u32 tmp = 1;
 714         bool clear;
 715         int ret;
 716
 717         ret = kstrtobool(buf, &clear);
 718         if (ret)
 719                 return ret;
 720
 721         if (clear == false)
 722                 return -EINVAL;
 723
 724         /* Clear the POST error code. It is kept until cleared. */
 725         ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
 726                                        sizeof(tmp), 0);
 727         if (ret)
 728                 return ret < 0 ? ret : -EINVAL;
 729
 730         return count;
 731 }
 732
 733 static DEVICE_ATTR_RO(display);
 734 static DEVICE_ATTR_RO(hddtemp);
 735 static DEVICE_ATTR_RW(als);
 736 static DEVICE_ATTR_RO(dock);
 737 static DEVICE_ATTR_RO(tablet);
 738 static DEVICE_ATTR_RW(postcode);
 739
 740 static struct attribute *hp_wmi_attrs[] = {
 741         &dev_attr_display.attr,
 742         &dev_attr_hddtemp.attr,
 743         &dev_attr_als.attr,
 744         &dev_attr_dock.attr,
 745         &dev_attr_tablet.attr,
 746         &dev_attr_postcode.attr,
 747         NULL,
 748 };
 749 ATTRIBUTE_GROUPS(hp_wmi);
 750
 751 static void hp_wmi_notify(u32 value, void *context)
 752 {
 753         struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
 754         u32 event_id, event_data;
 755         union acpi_object *obj;
 756         acpi_status status;
 757         u32 *location;
 758         int key_code;
 759
 760         status = wmi_get_event_data(value, &response);
 761         if (status != AE_OK) {
 762                 pr_info("bad event status 0x%x\n", status);
 763                 return;
 764         }
 765
 766         obj = (union acpi_object *)response.pointer;
 767
 768         if (!obj)
 769                 return;
 770         if (obj->type != ACPI_TYPE_BUFFER) {
 771                 pr_info("Unknown response received %d\n", obj->type);
 772                 kfree(obj);
 773                 return;
 774         }
 775
 776         /*
 777          * Depending on ACPI version the concatenation of id and event data
 778          * inside _WED function will result in a 8 or 16 byte buffer.
 779          */
 780         location = (u32 *)obj->buffer.pointer;
 781         if (obj->buffer.length == 8) {
 782                 event_id = *location;
 783                 event_data = *(location + 1);
 784         } else if (obj->buffer.length == 16) {
 785                 event_id = *location;
 786                 event_data = *(location + 2);
 787         } else {
 788                 pr_info("Unknown buffer length %d\n", obj->buffer.length);
 789                 kfree(obj);
 790                 return;
 791         }
 792         kfree(obj);
 793
 794         switch (event_id) {
 795         case HPWMI_DOCK_EVENT:
 796                 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
 797                         input_report_switch(hp_wmi_input_dev, SW_DOCK,
 798                                             hp_wmi_get_dock_state());
 799                 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
 800                         input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
 801                                             hp_wmi_get_tablet_mode());
 802                 input_sync(hp_wmi_input_dev);
 803                 break;
 804         case HPWMI_PARK_HDD:
 805                 break;
 806         case HPWMI_SMART_ADAPTER:
 807                 break;
 808         case HPWMI_BEZEL_BUTTON:
 809                 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY);
 810                 if (key_code < 0)
 811                         break;
 812
 813                 if (!sparse_keymap_report_event(hp_wmi_input_dev,
 814                                                 key_code, 1, true))
 815                         pr_info("Unknown key code - 0x%x\n", key_code);
 816                 break;
 817         case HPWMI_WIRELESS:
 818                 if (rfkill2_count) {
 819                         hp_wmi_rfkill2_refresh();
 820                         break;
 821                 }
 822
 823                 if (wifi_rfkill)
 824                         rfkill_set_states(wifi_rfkill,
 825                                           hp_wmi_get_sw_state(HPWMI_WIFI),
 826                                           hp_wmi_get_hw_state(HPWMI_WIFI));
 827                 if (bluetooth_rfkill)
 828                         rfkill_set_states(bluetooth_rfkill,
 829                                           hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
 830                                           hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
 831                 if (wwan_rfkill)
 832                         rfkill_set_states(wwan_rfkill,
 833                                           hp_wmi_get_sw_state(HPWMI_WWAN),
 834                                           hp_wmi_get_hw_state(HPWMI_WWAN));
 835                 break;
 836         case HPWMI_CPU_BATTERY_THROTTLE:
 837                 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n");
 838                 break;
 839         case HPWMI_LOCK_SWITCH:
 840                 break;
 841         case HPWMI_LID_SWITCH:
 842                 break;
 843         case HPWMI_SCREEN_ROTATION:
 844                 break;
 845         case HPWMI_COOLSENSE_SYSTEM_MOBILE:
 846                 break;
 847         case HPWMI_COOLSENSE_SYSTEM_HOT:
 848                 break;
 849         case HPWMI_PROXIMITY_SENSOR:
 850                 break;
 851         case HPWMI_BACKLIT_KB_BRIGHTNESS:
 852                 break;
 853         case HPWMI_PEAKSHIFT_PERIOD:
 854                 break;
 855         case HPWMI_BATTERY_CHARGE_PERIOD:
 856                 break;
 857         case HPWMI_SANITIZATION_MODE:
 858                 break;
 859         default:
 860                 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data);
 861                 break;
 862         }
 863 }
 864
 865 static int __init hp_wmi_input_setup(void)
 866 {
 867         acpi_status status;
 868         int err, val;
 869
 870         hp_wmi_input_dev = input_allocate_device();
 871         if (!hp_wmi_input_dev)
 872                 return -ENOMEM;
 873
 874         hp_wmi_input_dev->name = "HP WMI hotkeys";
 875         hp_wmi_input_dev->phys = "wmi/input0";
 876         hp_wmi_input_dev->id.bustype = BUS_HOST;
 877
 878         __set_bit(EV_SW, hp_wmi_input_dev->evbit);
 879
 880         /* Dock */
 881         val = hp_wmi_get_dock_state();
 882         if (!(val < 0)) {
 883                 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit);
 884                 input_report_switch(hp_wmi_input_dev, SW_DOCK, val);
 885         }
 886
 887         /* Tablet mode */
 888         val = hp_wmi_get_tablet_mode();
 889         if (!(val < 0)) {
 890                 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit);
 891                 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val);
 892         }
 893
 894         err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL);
 895         if (err)
 896                 goto err_free_dev;
 897
 898         /* Set initial hardware state */
 899         input_sync(hp_wmi_input_dev);
 900
 901         if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later())
 902                 hp_wmi_enable_hotkeys();
 903
 904         status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL);
 905         if (ACPI_FAILURE(status)) {
 906                 err = -EIO;
 907                 goto err_free_dev;
 908         }
 909
 910         err = input_register_device(hp_wmi_input_dev);
 911         if (err)
 912                 goto err_uninstall_notifier;
 913
 914         return 0;
 915
 916  err_uninstall_notifier:
 917         wmi_remove_notify_handler(HPWMI_EVENT_GUID);
 918  err_free_dev:
 919         input_free_device(hp_wmi_input_dev);
 920         return err;
 921 }
 922
 923 static void hp_wmi_input_destroy(void)
 924 {
 925         wmi_remove_notify_handler(HPWMI_EVENT_GUID);
 926         input_unregister_device(hp_wmi_input_dev);
 927 }
 928
 929 static int __init hp_wmi_rfkill_setup(struct platform_device *device)
 930 {
 931         int err, wireless;
 932
 933         wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY);
 934         if (wireless < 0)
 935                 return wireless;
 936
 937         err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
 938                                    sizeof(wireless), 0);
 939         if (err)
 940                 return err;
 941
 942         if (wireless & 0x1) {
 943                 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
 944                                            RFKILL_TYPE_WLAN,
 945                                            &hp_wmi_rfkill_ops,
 946                                            (void *) HPWMI_WIFI);
 947                 if (!wifi_rfkill)
 948                         return -ENOMEM;
 949                 rfkill_init_sw_state(wifi_rfkill,
 950                                      hp_wmi_get_sw_state(HPWMI_WIFI));
 951                 rfkill_set_hw_state(wifi_rfkill,
 952                                     hp_wmi_get_hw_state(HPWMI_WIFI));
 953                 err = rfkill_register(wifi_rfkill);
 954                 if (err)
 955                         goto register_wifi_error;
 956         }
 957
 958         if (wireless & 0x2) {
 959                 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev,
 960                                                 RFKILL_TYPE_BLUETOOTH,
 961                                                 &hp_wmi_rfkill_ops,
 962                                                 (void *) HPWMI_BLUETOOTH);
 963                 if (!bluetooth_rfkill) {
 964                         err = -ENOMEM;
 965                         goto register_bluetooth_error;
 966                 }
 967                 rfkill_init_sw_state(bluetooth_rfkill,
 968                                      hp_wmi_get_sw_state(HPWMI_BLUETOOTH));
 969                 rfkill_set_hw_state(bluetooth_rfkill,
 970                                     hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
 971                 err = rfkill_register(bluetooth_rfkill);
 972                 if (err)
 973                         goto register_bluetooth_error;
 974         }
 975
 976         if (wireless & 0x4) {
 977                 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev,
 978                                            RFKILL_TYPE_WWAN,
 979                                            &hp_wmi_rfkill_ops,
 980                                            (void *) HPWMI_WWAN);
 981                 if (!wwan_rfkill) {
 982                         err = -ENOMEM;
 983                         goto register_wwan_error;
 984                 }
 985                 rfkill_init_sw_state(wwan_rfkill,
 986                                      hp_wmi_get_sw_state(HPWMI_WWAN));
 987                 rfkill_set_hw_state(wwan_rfkill,
 988                                     hp_wmi_get_hw_state(HPWMI_WWAN));
 989                 err = rfkill_register(wwan_rfkill);
 990                 if (err)
 991                         goto register_wwan_error;
 992         }
 993
 994         return 0;
 995
 996 register_wwan_error:
 997         rfkill_destroy(wwan_rfkill);
 998         wwan_rfkill = NULL;
 999         if (bluetooth_rfkill)
1000                 rfkill_unregister(bluetooth_rfkill);
1001 register_bluetooth_error:
1002         rfkill_destroy(bluetooth_rfkill);
1003         bluetooth_rfkill = NULL;
1004         if (wifi_rfkill)
1005                 rfkill_unregister(wifi_rfkill);
1006 register_wifi_error:
1007         rfkill_destroy(wifi_rfkill);
1008         wifi_rfkill = NULL;
1009         return err;
1010 }
1011
1012 static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
1013 {
1014         struct bios_rfkill2_state state;
1015         int err, i;
1016
1017         err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
1018                                    zero_if_sup(state), sizeof(state));
1019         if (err)
1020                 return err < 0 ? err : -EINVAL;
1021
1022         if (state.count > HPWMI_MAX_RFKILL2_DEVICES) {
1023                 pr_warn("unable to parse 0x1b query output\n");
1024                 return -EINVAL;
1025         }
1026
1027         for (i = 0; i < state.count; i++) {
1028                 struct rfkill *rfkill;
1029                 enum rfkill_type type;
1030                 char *name;
1031
1032                 switch (state.device[i].radio_type) {
1033                 case HPWMI_WIFI:
1034                         type = RFKILL_TYPE_WLAN;
1035                         name = "hp-wifi";
1036                         break;
1037                 case HPWMI_BLUETOOTH:
1038                         type = RFKILL_TYPE_BLUETOOTH;
1039                         name = "hp-bluetooth";
1040                         break;
1041                 case HPWMI_WWAN:
1042                         type = RFKILL_TYPE_WWAN;
1043                         name = "hp-wwan";
1044                         break;
1045                 case HPWMI_GPS:
1046                         type = RFKILL_TYPE_GPS;
1047                         name = "hp-gps";
1048                         break;
1049                 default:
1050                         pr_warn("unknown device type 0x%x\n",
1051                                 state.device[i].radio_type);
1052                         continue;
1053                 }
1054
1055                 if (!state.device[i].vendor_id) {
1056                         pr_warn("zero device %d while %d reported\n",
1057                                 i, state.count);
1058                         continue;
1059                 }
1060
1061                 rfkill = rfkill_alloc(name, &device->dev, type,
1062                                       &hp_wmi_rfkill2_ops, (void *)(long)i);
1063                 if (!rfkill) {
1064                         err = -ENOMEM;
1065                         goto fail;
1066                 }
1067
1068                 rfkill2[rfkill2_count].id = state.device[i].rfkill_id;
1069                 rfkill2[rfkill2_count].num = i;
1070                 rfkill2[rfkill2_count].rfkill = rfkill;
1071
1072                 rfkill_init_sw_state(rfkill,
1073                                      IS_SWBLOCKED(state.device[i].power));
1074                 rfkill_set_hw_state(rfkill,
1075                                     IS_HWBLOCKED(state.device[i].power));
1076
1077                 if (!(state.device[i].power & HPWMI_POWER_BIOS))
1078                         pr_info("device %s blocked by BIOS\n", name);
1079
1080                 err = rfkill_register(rfkill);
1081                 if (err) {
1082                         rfkill_destroy(rfkill);
1083                         goto fail;
1084                 }
1085
1086                 rfkill2_count++;
1087         }
1088
1089         return 0;
1090 fail:
1091         for (; rfkill2_count > 0; rfkill2_count--) {
1092                 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill);
1093                 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill);
1094         }
1095         return err;
1096 }
1097
1098 static int platform_profile_omen_get(struct platform_profile_handler *pprof,
1099                                      enum platform_profile_option *profile)
1100 {
1101         int tp;
1102
1103         tp = omen_thermal_profile_get();
1104         if (tp < 0)
1105                 return tp;
1106
1107         switch (tp) {
1108         case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE:
1109         case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE:
1110                 *profile = PLATFORM_PROFILE_PERFORMANCE;
1111                 break;
1112         case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT:
1113         case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT:
1114                 *profile = PLATFORM_PROFILE_BALANCED;
1115                 break;
1116         case HP_OMEN_V0_THERMAL_PROFILE_COOL:
1117         case HP_OMEN_V1_THERMAL_PROFILE_COOL:
1118                 *profile = PLATFORM_PROFILE_COOL;
1119                 break;
1120         default:
1121                 return -EINVAL;
1122         }
1123
1124         return 0;
1125 }
1126
1127 static int platform_profile_omen_set(struct platform_profile_handler *pprof,
1128                                      enum platform_profile_option profile)
1129 {
1130         int err, tp, tp_version;
1131
1132         tp_version = omen_get_thermal_policy_version();
1133
1134         if (tp_version < 0 || tp_version > 1)
1135                 return -EOPNOTSUPP;
1136
1137         switch (profile) {
1138         case PLATFORM_PROFILE_PERFORMANCE:
1139                 if (tp_version == 0)
1140                         tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE;
1141                 else
1142                         tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE;
1143                 break;
1144         case PLATFORM_PROFILE_BALANCED:
1145                 if (tp_version == 0)
1146                         tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT;
1147                 else
1148                         tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT;
1149                 break;
1150         case PLATFORM_PROFILE_COOL:
1151                 if (tp_version == 0)
1152                         tp = HP_OMEN_V0_THERMAL_PROFILE_COOL;
1153                 else
1154                         tp = HP_OMEN_V1_THERMAL_PROFILE_COOL;
1155                 break;
1156         default:
1157                 return -EOPNOTSUPP;
1158         }
1159
1160         err = omen_thermal_profile_set(tp);
1161         if (err < 0)
1162                 return err;
1163
1164         return 0;
1165 }
1166
1167 static int thermal_profile_get(void)
1168 {
1169         return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY);
1170 }
1171
1172 static int thermal_profile_set(int thermal_profile)
1173 {
1174         return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile,
1175                                                            sizeof(thermal_profile), 0);
1176 }
1177
1178 static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof,
1179                                         enum platform_profile_option *profile)
1180 {
1181         int tp;
1182
1183         tp = thermal_profile_get();
1184         if (tp < 0)
1185                 return tp;
1186
1187         switch (tp) {
1188         case HP_THERMAL_PROFILE_PERFORMANCE:
1189                 *profile =  PLATFORM_PROFILE_PERFORMANCE;
1190                 break;
1191         case HP_THERMAL_PROFILE_DEFAULT:
1192                 *profile =  PLATFORM_PROFILE_BALANCED;
1193                 break;
1194         case HP_THERMAL_PROFILE_COOL:
1195                 *profile =  PLATFORM_PROFILE_COOL;
1196                 break;
1197         default:
1198                 return -EINVAL;
1199         }
1200
1201         return 0;
1202 }
1203
1204 static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof,
1205                                         enum platform_profile_option profile)
1206 {
1207         int err, tp;
1208
1209         switch (profile) {
1210         case PLATFORM_PROFILE_PERFORMANCE:
1211                 tp =  HP_THERMAL_PROFILE_PERFORMANCE;
1212                 break;
1213         case PLATFORM_PROFILE_BALANCED:
1214                 tp =  HP_THERMAL_PROFILE_DEFAULT;
1215                 break;
1216         case PLATFORM_PROFILE_COOL:
1217                 tp =  HP_THERMAL_PROFILE_COOL;
1218                 break;
1219         default:
1220                 return -EOPNOTSUPP;
1221         }
1222
1223         err = thermal_profile_set(tp);
1224         if (err)
1225                 return err;
1226
1227         return 0;
1228 }
1229
1230 static int thermal_profile_setup(void)
1231 {
1232         int err, tp;
1233
1234         if (is_omen_thermal_profile()) {
1235                 tp = omen_thermal_profile_get();
1236                 if (tp < 0)
1237                         return tp;
1238
1239                 /*
1240                  * call thermal profile write command to ensure that the
1241                  * firmware correctly sets the OEM variables
1242                  */
1243
1244                 err = omen_thermal_profile_set(tp);
1245                 if (err < 0)
1246                         return err;
1247
1248                 platform_profile_handler.profile_get = platform_profile_omen_get;
1249                 platform_profile_handler.profile_set = platform_profile_omen_set;
1250         } else {
1251                 tp = thermal_profile_get();
1252
1253                 if (tp < 0)
1254                         return tp;
1255
1256                 /*
1257                  * call thermal profile write command to ensure that the
1258                  * firmware correctly sets the OEM variables for the DPTF
1259                  */
1260                 err = thermal_profile_set(tp);
1261                 if (err)
1262                         return err;
1263
1264                 platform_profile_handler.profile_get = hp_wmi_platform_profile_get;
1265                 platform_profile_handler.profile_set = hp_wmi_platform_profile_set;
1266         }
1267
1268         set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
1269         set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices);
1270         set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices);
1271
1272         err = platform_profile_register(&platform_profile_handler);
1273         if (err)
1274                 return err;
1275
1276         platform_profile_support = true;
1277
1278         return 0;
1279 }
1280
1281 static int hp_wmi_hwmon_init(void);
1282
1283 static int __init hp_wmi_bios_setup(struct platform_device *device)
1284 {
1285         int err;
1286         /* clear detected rfkill devices */
1287         wifi_rfkill = NULL;
1288         bluetooth_rfkill = NULL;
1289         wwan_rfkill = NULL;
1290         rfkill2_count = 0;
1291
1292         if (hp_wmi_rfkill_setup(device))
1293                 hp_wmi_rfkill2_setup(device);
1294
1295         err = hp_wmi_hwmon_init();
1296
1297         if (err < 0)
1298                 return err;
1299
1300         thermal_profile_setup();
1301
1302         return 0;
1303 }
1304
1305 static int __exit hp_wmi_bios_remove(struct platform_device *device)
1306 {
1307         int i;
1308
1309         for (i = 0; i < rfkill2_count; i++) {
1310                 rfkill_unregister(rfkill2[i].rfkill);
1311                 rfkill_destroy(rfkill2[i].rfkill);
1312         }
1313
1314         if (wifi_rfkill) {
1315                 rfkill_unregister(wifi_rfkill);
1316                 rfkill_destroy(wifi_rfkill);
1317         }
1318         if (bluetooth_rfkill) {
1319                 rfkill_unregister(bluetooth_rfkill);
1320                 rfkill_destroy(bluetooth_rfkill);
1321         }
1322         if (wwan_rfkill) {
1323                 rfkill_unregister(wwan_rfkill);
1324                 rfkill_destroy(wwan_rfkill);
1325         }
1326
1327         if (platform_profile_support)
1328                 platform_profile_remove();
1329
1330         return 0;
1331 }
1332
1333 static int hp_wmi_resume_handler(struct device *device)
1334 {
1335         /*
1336          * Hardware state may have changed while suspended, so trigger
1337          * input events for the current state. As this is a switch,
1338          * the input layer will only actually pass it on if the state
1339          * changed.
1340          */
1341         if (hp_wmi_input_dev) {
1342                 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit))
1343                         input_report_switch(hp_wmi_input_dev, SW_DOCK,
1344                                             hp_wmi_get_dock_state());
1345                 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit))
1346                         input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE,
1347                                             hp_wmi_get_tablet_mode());
1348                 input_sync(hp_wmi_input_dev);
1349         }
1350
1351         if (rfkill2_count)
1352                 hp_wmi_rfkill2_refresh();
1353
1354         if (wifi_rfkill)
1355                 rfkill_set_states(wifi_rfkill,
1356                                   hp_wmi_get_sw_state(HPWMI_WIFI),
1357                                   hp_wmi_get_hw_state(HPWMI_WIFI));
1358         if (bluetooth_rfkill)
1359                 rfkill_set_states(bluetooth_rfkill,
1360                                   hp_wmi_get_sw_state(HPWMI_BLUETOOTH),
1361                                   hp_wmi_get_hw_state(HPWMI_BLUETOOTH));
1362         if (wwan_rfkill)
1363                 rfkill_set_states(wwan_rfkill,
1364                                   hp_wmi_get_sw_state(HPWMI_WWAN),
1365                                   hp_wmi_get_hw_state(HPWMI_WWAN));
1366
1367         return 0;
1368 }
1369
1370 static const struct dev_pm_ops hp_wmi_pm_ops = {
1371         .resume  = hp_wmi_resume_handler,
1372         .restore  = hp_wmi_resume_handler,
1373 };
1374
1375 static struct platform_driver hp_wmi_driver = {
1376         .driver = {
1377                 .name = "hp-wmi",
1378                 .pm = &hp_wmi_pm_ops,
1379                 .dev_groups = hp_wmi_groups,
1380         },
1381         .remove = __exit_p(hp_wmi_bios_remove),
1382 };
1383
1384 static umode_t hp_wmi_hwmon_is_visible(const void *data,
1385                                        enum hwmon_sensor_types type,
1386                                        u32 attr, int channel)
1387 {
1388         switch (type) {
1389         case hwmon_pwm:
1390                 return 0644;
1391         case hwmon_fan:
1392                 if (hp_wmi_get_fan_speed(channel) >= 0)
1393                         return 0444;
1394                 break;
1395         default:
1396                 return 0;
1397         }
1398
1399         return 0;
1400 }
1401
1402 static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
1403                              u32 attr, int channel, long *val)
1404 {
1405         int ret;
1406
1407         switch (type) {
1408         case hwmon_fan:
1409                 ret = hp_wmi_get_fan_speed(channel);
1410
1411                 if (ret < 0)
1412                         return ret;
1413                 *val = ret;
1414                 return 0;
1415         case hwmon_pwm:
1416                 switch (hp_wmi_fan_speed_max_get()) {
1417                 case 0:
1418                         /* 0 is automatic fan, which is 2 for hwmon */
1419                         *val = 2;
1420                         return 0;
1421                 case 1:
1422                         /* 1 is max fan, which is 0
1423                          * (no fan speed control) for hwmon
1424                          */
1425                         *val = 0;
1426                         return 0;
1427                 default:
1428                         /* shouldn't happen */
1429                         return -ENODATA;
1430                 }
1431         default:
1432                 return -EINVAL;
1433         }
1434 }
1435
1436 static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
1437                               u32 attr, int channel, long val)
1438 {
1439         switch (type) {
1440         case hwmon_pwm:
1441                 switch (val) {
1442                 case 0:
1443                         /* 0 is no fan speed control (max), which is 1 for us */
1444                         return hp_wmi_fan_speed_max_set(1);
1445                 case 2:
1446                         /* 2 is automatic speed control, which is 0 for us */
1447                         return hp_wmi_fan_speed_max_set(0);
1448                 default:
1449                         /* we don't support manual fan speed control */
1450                         return -EINVAL;
1451                 }
1452         default:
1453                 return -EOPNOTSUPP;
1454         }
1455 }
1456
1457 static const struct hwmon_channel_info *info[] = {
1458         HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT),
1459         HWMON_CHANNEL_INFO(pwm, HWMON_PWM_ENABLE),
1460         NULL
1461 };
1462
1463 static const struct hwmon_ops ops = {
1464         .is_visible = hp_wmi_hwmon_is_visible,
1465         .read = hp_wmi_hwmon_read,
1466         .write = hp_wmi_hwmon_write,
1467 };
1468
1469 static const struct hwmon_chip_info chip_info = {
1470         .ops = &ops,
1471         .info = info,
1472 };
1473
1474 static int hp_wmi_hwmon_init(void)
1475 {
1476         struct device *dev = &hp_wmi_platform_dev->dev;
1477         struct device *hwmon;
1478
1479         hwmon = devm_hwmon_device_register_with_info(dev, "hp", &hp_wmi_driver,
1480                                                      &chip_info, NULL);
1481
1482         if (IS_ERR(hwmon)) {
1483                 dev_err(dev, "Could not register hp hwmon device\n");
1484                 return PTR_ERR(hwmon);
1485         }
1486
1487         return 0;
1488 }
1489
1490 static int __init hp_wmi_init(void)
1491 {
1492         int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
1493         int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
1494         int err, tmp = 0;
1495
1496         if (!bios_capable && !event_capable)
1497                 return -ENODEV;
1498
1499         if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp,
1500                                  sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS)
1501                 zero_insize_support = true;
1502
1503         if (event_capable) {
1504                 err = hp_wmi_input_setup();
1505                 if (err)
1506                         return err;
1507         }
1508
1509         if (bios_capable) {
1510                 hp_wmi_platform_dev =
1511                         platform_device_register_simple("hp-wmi", -1, NULL, 0);
1512                 if (IS_ERR(hp_wmi_platform_dev)) {
1513                         err = PTR_ERR(hp_wmi_platform_dev);
1514                         goto err_destroy_input;
1515                 }
1516
1517                 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup);
1518                 if (err)
1519                         goto err_unregister_device;
1520         }
1521
1522         return 0;
1523
1524 err_unregister_device:
1525         platform_device_unregister(hp_wmi_platform_dev);
1526 err_destroy_input:
1527         if (event_capable)
1528                 hp_wmi_input_destroy();
1529
1530         return err;
1531 }
1532 module_init(hp_wmi_init);
1533
1534 static void __exit hp_wmi_exit(void)
1535 {
1536         if (wmi_has_guid(HPWMI_EVENT_GUID))
1537                 hp_wmi_input_destroy();
1538
1539         if (hp_wmi_platform_dev) {
1540                 platform_device_unregister(hp_wmi_platform_dev);
1541                 platform_driver_unregister(&hp_wmi_driver);
1542         }
1543 }
1544 module_exit(hp_wmi_exit);