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/mutex.h> 28 #include <linux/cleanup.h> 29 #include <linux/power_supply.h> 30 #include <linux/rfkill.h> 31 #include <linux/string.h> 32 #include <linux/dmi.h> 33 34 MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); 35 MODULE_DESCRIPTION("HP laptop WMI driver"); 36 MODULE_LICENSE("GPL"); 37 38 MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); 39 MODULE_ALIAS("wmi:5FB7F034-2C63-45E9-BE91-3D44E2C707E4"); 40 41 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" 42 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45E9-BE91-3D44E2C707E4" 43 44 #define HP_OMEN_EC_THERMAL_PROFILE_FLAGS_OFFSET 0x62 45 #define HP_OMEN_EC_THERMAL_PROFILE_TIMER_OFFSET 0x63 46 #define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95 47 48 #define ACPI_AC_CLASS "ac_adapter" 49 50 #define zero_if_sup(tmp) (zero_insize_support?0:sizeof(tmp)) // use when zero insize is required 51 52 /* DMI board names of devices that should use the omen specific path for 53 * thermal profiles. 54 * This was obtained by taking a look in the windows omen command center 55 * app and parsing a json file that they use to figure out what capabilities 56 * the device should have. 57 * A device is considered an omen if the DisplayName in that list contains 58 * "OMEN", and it can use the thermal profile stuff if the "Feature" array 59 * contains "PerformanceControl". 60 */ 61 static const char * const omen_thermal_profile_boards[] = { 62 "84DA", "84DB", "84DC", "8574", "8575", "860A", "87B5", "8572", "8573", 63 "8600", "8601", "8602", "8605", "8606", "8607", "8746", "8747", "8749", 64 "874A", "8603", "8604", "8748", "886B", "886C", "878A", "878B", "878C", 65 "88C8", "88CB", "8786", "8787", "8788", "88D1", "88D2", "88F4", "88FD", 66 "88F5", "88F6", "88F7", "88FE", "88FF", "8900", "8901", "8902", "8912", 67 "8917", "8918", "8949", "894A", "89EB", "8BAD", "8A42" 68 }; 69 70 /* DMI Board names of Omen laptops that are specifically set to be thermal 71 * profile version 0 by the Omen Command Center app, regardless of what 72 * the get system design information WMI call returns 73 */ 74 static const char * const omen_thermal_profile_force_v0_boards[] = { 75 "8607", "8746", "8747", "8749", "874A", "8748" 76 }; 77 78 /* DMI board names of Omen laptops that have a thermal profile timer which will 79 * cause the embedded controller to set the thermal profile back to 80 * "balanced" when reaching zero. 81 */ 82 static const char * const omen_timed_thermal_profile_boards[] = { 83 "8BAD", "8A42" 84 }; 85 86 /* DMI Board names of Victus laptops */ 87 static const char * const victus_thermal_profile_boards[] = { 88 "8A25" 89 }; 90 91 enum hp_wmi_radio { 92 HPWMI_WIFI = 0x0, 93 HPWMI_BLUETOOTH = 0x1, 94 HPWMI_WWAN = 0x2, 95 HPWMI_GPS = 0x3, 96 }; 97 98 enum hp_wmi_event_ids { 99 HPWMI_DOCK_EVENT = 0x01, 100 HPWMI_PARK_HDD = 0x02, 101 HPWMI_SMART_ADAPTER = 0x03, 102 HPWMI_BEZEL_BUTTON = 0x04, 103 HPWMI_WIRELESS = 0x05, 104 HPWMI_CPU_BATTERY_THROTTLE = 0x06, 105 HPWMI_LOCK_SWITCH = 0x07, 106 HPWMI_LID_SWITCH = 0x08, 107 HPWMI_SCREEN_ROTATION = 0x09, 108 HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, 109 HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, 110 HPWMI_PROXIMITY_SENSOR = 0x0C, 111 HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, 112 HPWMI_PEAKSHIFT_PERIOD = 0x0F, 113 HPWMI_BATTERY_CHARGE_PERIOD = 0x10, 114 HPWMI_SANITIZATION_MODE = 0x17, 115 HPWMI_CAMERA_TOGGLE = 0x1A, 116 HPWMI_OMEN_KEY = 0x1D, 117 HPWMI_SMART_EXPERIENCE_APP = 0x21, 118 }; 119 120 /* 121 * struct bios_args buffer is dynamically allocated. New WMI command types 122 * were introduced that exceeds 128-byte data size. Changes to handle 123 * the data size allocation scheme were kept in hp_wmi_perform_qurey function. 124 */ 125 struct bios_args { 126 u32 signature; 127 u32 command; 128 u32 commandtype; 129 u32 datasize; 130 u8 data[]; 131 }; 132 133 enum hp_wmi_commandtype { 134 HPWMI_DISPLAY_QUERY = 0x01, 135 HPWMI_HDDTEMP_QUERY = 0x02, 136 HPWMI_ALS_QUERY = 0x03, 137 HPWMI_HARDWARE_QUERY = 0x04, 138 HPWMI_WIRELESS_QUERY = 0x05, 139 HPWMI_BATTERY_QUERY = 0x07, 140 HPWMI_BIOS_QUERY = 0x09, 141 HPWMI_FEATURE_QUERY = 0x0b, 142 HPWMI_HOTKEY_QUERY = 0x0c, 143 HPWMI_FEATURE2_QUERY = 0x0d, 144 HPWMI_WIRELESS2_QUERY = 0x1b, 145 HPWMI_POSTCODEERROR_QUERY = 0x2a, 146 HPWMI_SYSTEM_DEVICE_MODE = 0x40, 147 HPWMI_THERMAL_PROFILE_QUERY = 0x4c, 148 }; 149 150 enum hp_wmi_gm_commandtype { 151 HPWMI_FAN_SPEED_GET_QUERY = 0x11, 152 HPWMI_SET_PERFORMANCE_MODE = 0x1A, 153 HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26, 154 HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27, 155 HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28, 156 }; 157 158 enum hp_wmi_command { 159 HPWMI_READ = 0x01, 160 HPWMI_WRITE = 0x02, 161 HPWMI_ODM = 0x03, 162 HPWMI_GM = 0x20008, 163 }; 164 165 enum hp_wmi_hardware_mask { 166 HPWMI_DOCK_MASK = 0x01, 167 HPWMI_TABLET_MASK = 0x04, 168 }; 169 170 struct bios_return { 171 u32 sigpass; 172 u32 return_code; 173 }; 174 175 enum hp_return_value { 176 HPWMI_RET_WRONG_SIGNATURE = 0x02, 177 HPWMI_RET_UNKNOWN_COMMAND = 0x03, 178 HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, 179 HPWMI_RET_INVALID_PARAMETERS = 0x05, 180 }; 181 182 enum hp_wireless2_bits { 183 HPWMI_POWER_STATE = 0x01, 184 HPWMI_POWER_SOFT = 0x02, 185 HPWMI_POWER_BIOS = 0x04, 186 HPWMI_POWER_HARD = 0x08, 187 HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD, 188 }; 189 190 enum hp_thermal_profile_omen_v0 { 191 HP_OMEN_V0_THERMAL_PROFILE_DEFAULT = 0x00, 192 HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01, 193 HP_OMEN_V0_THERMAL_PROFILE_COOL = 0x02, 194 }; 195 196 enum hp_thermal_profile_omen_v1 { 197 HP_OMEN_V1_THERMAL_PROFILE_DEFAULT = 0x30, 198 HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE = 0x31, 199 HP_OMEN_V1_THERMAL_PROFILE_COOL = 0x50, 200 }; 201 202 enum hp_thermal_profile_omen_flags { 203 HP_OMEN_EC_FLAGS_TURBO = 0x04, 204 HP_OMEN_EC_FLAGS_NOTIMER = 0x02, 205 HP_OMEN_EC_FLAGS_JUSTSET = 0x01, 206 }; 207 208 enum hp_thermal_profile_victus { 209 HP_VICTUS_THERMAL_PROFILE_DEFAULT = 0x00, 210 HP_VICTUS_THERMAL_PROFILE_PERFORMANCE = 0x01, 211 HP_VICTUS_THERMAL_PROFILE_QUIET = 0x03, 212 }; 213 214 enum hp_thermal_profile { 215 HP_THERMAL_PROFILE_PERFORMANCE = 0x00, 216 HP_THERMAL_PROFILE_DEFAULT = 0x01, 217 HP_THERMAL_PROFILE_COOL = 0x02, 218 HP_THERMAL_PROFILE_QUIET = 0x03, 219 }; 220 221 #define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW) 222 #define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) 223 224 struct bios_rfkill2_device_state { 225 u8 radio_type; 226 u8 bus_type; 227 u16 vendor_id; 228 u16 product_id; 229 u16 subsys_vendor_id; 230 u16 subsys_product_id; 231 u8 rfkill_id; 232 u8 power; 233 u8 unknown[4]; 234 }; 235 236 /* 7 devices fit into the 128 byte buffer */ 237 #define HPWMI_MAX_RFKILL2_DEVICES 7 238 239 struct bios_rfkill2_state { 240 u8 unknown[7]; 241 u8 count; 242 u8 pad[8]; 243 struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; 244 }; 245 246 static const struct key_entry hp_wmi_keymap[] = { 247 { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, 248 { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, 249 { KE_KEY, 0x270, { KEY_MICMUTE } }, 250 { KE_KEY, 0x20e6, { KEY_PROG1 } }, 251 { KE_KEY, 0x20e8, { KEY_MEDIA } }, 252 { KE_KEY, 0x2142, { KEY_MEDIA } }, 253 { KE_KEY, 0x213b, { KEY_INFO } }, 254 { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } }, 255 { KE_KEY, 0x216a, { KEY_SETUP } }, 256 { KE_IGNORE, 0x21a4, }, /* Win Lock On */ 257 { KE_IGNORE, 0x121a4, }, /* Win Lock Off */ 258 { KE_KEY, 0x21a5, { KEY_PROG2 } }, /* HP Omen Key */ 259 { KE_KEY, 0x21a7, { KEY_FN_ESC } }, 260 { KE_KEY, 0x21a8, { KEY_PROG2 } }, /* HP Envy x360 programmable key */ 261 { KE_KEY, 0x21a9, { KEY_TOUCHPAD_OFF } }, 262 { KE_KEY, 0x121a9, { KEY_TOUCHPAD_ON } }, 263 { KE_KEY, 0x231b, { KEY_HELP } }, 264 { KE_END, 0 } 265 }; 266 267 /* 268 * Mutex for the active_platform_profile variable, 269 * see omen_powersource_event. 270 */ 271 static DEFINE_MUTEX(active_platform_profile_lock); 272 273 static struct input_dev *hp_wmi_input_dev; 274 static struct input_dev *camera_shutter_input_dev; 275 static struct platform_device *hp_wmi_platform_dev; 276 static struct platform_profile_handler platform_profile_handler; 277 static struct notifier_block platform_power_source_nb; 278 static enum platform_profile_option active_platform_profile; 279 static bool platform_profile_support; 280 static bool zero_insize_support; 281 282 static struct rfkill *wifi_rfkill; 283 static struct rfkill *bluetooth_rfkill; 284 static struct rfkill *wwan_rfkill; 285 286 struct rfkill2_device { 287 u8 id; 288 int num; 289 struct rfkill *rfkill; 290 }; 291 292 static int rfkill2_count; 293 static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; 294 295 /* 296 * Chassis Types values were obtained from SMBIOS reference 297 * specification version 3.00. A complete list of system enclosures 298 * and chassis types is available on Table 17. 299 */ 300 static const char * const tablet_chassis_types[] = { 301 "30", /* Tablet*/ 302 "31", /* Convertible */ 303 "32" /* Detachable */ 304 }; 305 306 #define DEVICE_MODE_TABLET 0x06 307 308 /* map output size to the corresponding WMI method id */ 309 static inline int encode_outsize_for_pvsz(int outsize) 310 { 311 if (outsize > 4096) 312 return -EINVAL; 313 if (outsize > 1024) 314 return 5; 315 if (outsize > 128) 316 return 4; 317 if (outsize > 4) 318 return 3; 319 if (outsize > 0) 320 return 2; 321 return 1; 322 } 323 324 /* 325 * hp_wmi_perform_query 326 * 327 * query: The commandtype (enum hp_wmi_commandtype) 328 * write: The command (enum hp_wmi_command) 329 * buffer: Buffer used as input and/or output 330 * insize: Size of input buffer 331 * outsize: Size of output buffer 332 * 333 * returns zero on success 334 * an HP WMI query specific error code (which is positive) 335 * -EINVAL if the query was not successful at all 336 * -EINVAL if the output buffer size exceeds buffersize 337 * 338 * Note: The buffersize must at least be the maximum of the input and output 339 * size. E.g. Battery info query is defined to have 1 byte input 340 * and 128 byte output. The caller would do: 341 * buffer = kzalloc(128, GFP_KERNEL); 342 * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128) 343 */ 344 static int hp_wmi_perform_query(int query, enum hp_wmi_command command, 345 void *buffer, int insize, int outsize) 346 { 347 struct acpi_buffer input, output = { ACPI_ALLOCATE_BUFFER, NULL }; 348 struct bios_return *bios_return; 349 union acpi_object *obj = NULL; 350 struct bios_args *args = NULL; 351 int mid, actual_insize, actual_outsize; 352 size_t bios_args_size; 353 int ret; 354 355 mid = encode_outsize_for_pvsz(outsize); 356 if (WARN_ON(mid < 0)) 357 return mid; 358 359 actual_insize = max(insize, 128); 360 bios_args_size = struct_size(args, data, actual_insize); 361 args = kmalloc(bios_args_size, GFP_KERNEL); 362 if (!args) 363 return -ENOMEM; 364 365 input.length = bios_args_size; 366 input.pointer = args; 367 368 args->signature = 0x55434553; 369 args->command = command; 370 args->commandtype = query; 371 args->datasize = insize; 372 memcpy(args->data, buffer, flex_array_size(args, data, insize)); 373 374 ret = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output); 375 if (ret) 376 goto out_free; 377 378 obj = output.pointer; 379 if (!obj) { 380 ret = -EINVAL; 381 goto out_free; 382 } 383 384 if (obj->type != ACPI_TYPE_BUFFER) { 385 pr_warn("query 0x%x returned an invalid object 0x%x\n", query, ret); 386 ret = -EINVAL; 387 goto out_free; 388 } 389 390 bios_return = (struct bios_return *)obj->buffer.pointer; 391 ret = bios_return->return_code; 392 393 if (ret) { 394 if (ret != HPWMI_RET_UNKNOWN_COMMAND && 395 ret != HPWMI_RET_UNKNOWN_CMDTYPE) 396 pr_warn("query 0x%x returned error 0x%x\n", query, ret); 397 goto out_free; 398 } 399 400 /* Ignore output data of zero size */ 401 if (!outsize) 402 goto out_free; 403 404 actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); 405 memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); 406 memset(buffer + actual_outsize, 0, outsize - actual_outsize); 407 408 out_free: 409 kfree(obj); 410 kfree(args); 411 return ret; 412 } 413 414 static int hp_wmi_get_fan_speed(int fan) 415 { 416 u8 fsh, fsl; 417 char fan_data[4] = { fan, 0, 0, 0 }; 418 419 int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM, 420 &fan_data, sizeof(char), 421 sizeof(fan_data)); 422 423 if (ret != 0) 424 return -EINVAL; 425 426 fsh = fan_data[2]; 427 fsl = fan_data[3]; 428 429 return (fsh << 8) | fsl; 430 } 431 432 static int hp_wmi_read_int(int query) 433 { 434 int val = 0, ret; 435 436 ret = hp_wmi_perform_query(query, HPWMI_READ, &val, 437 zero_if_sup(val), sizeof(val)); 438 439 if (ret) 440 return ret < 0 ? ret : -EINVAL; 441 442 return val; 443 } 444 445 static int hp_wmi_get_dock_state(void) 446 { 447 int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY); 448 449 if (state < 0) 450 return state; 451 452 return !!(state & HPWMI_DOCK_MASK); 453 } 454 455 static int hp_wmi_get_tablet_mode(void) 456 { 457 char system_device_mode[4] = { 0 }; 458 const char *chassis_type; 459 bool tablet_found; 460 int ret; 461 462 chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); 463 if (!chassis_type) 464 return -ENODEV; 465 466 tablet_found = match_string(tablet_chassis_types, 467 ARRAY_SIZE(tablet_chassis_types), 468 chassis_type) >= 0; 469 if (!tablet_found) 470 return -ENODEV; 471 472 ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ, 473 system_device_mode, zero_if_sup(system_device_mode), 474 sizeof(system_device_mode)); 475 if (ret < 0) 476 return ret; 477 478 return system_device_mode[0] == DEVICE_MODE_TABLET; 479 } 480 481 static int omen_thermal_profile_set(int mode) 482 { 483 /* The Omen Control Center actively sets the first byte of the buffer to 484 * 255, so let's mimic this behaviour to be as close as possible to 485 * the original software. 486 */ 487 char buffer[2] = {-1, mode}; 488 int ret; 489 490 ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM, 491 &buffer, sizeof(buffer), 0); 492 493 if (ret) 494 return ret < 0 ? ret : -EINVAL; 495 496 return mode; 497 } 498 499 static bool is_omen_thermal_profile(void) 500 { 501 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 502 503 if (!board_name) 504 return false; 505 506 return match_string(omen_thermal_profile_boards, 507 ARRAY_SIZE(omen_thermal_profile_boards), 508 board_name) >= 0; 509 } 510 511 static int omen_get_thermal_policy_version(void) 512 { 513 unsigned char buffer[8] = { 0 }; 514 int ret; 515 516 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 517 518 if (board_name) { 519 int matches = match_string(omen_thermal_profile_force_v0_boards, 520 ARRAY_SIZE(omen_thermal_profile_force_v0_boards), 521 board_name); 522 if (matches >= 0) 523 return 0; 524 } 525 526 ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM, 527 &buffer, sizeof(buffer), sizeof(buffer)); 528 529 if (ret) 530 return ret < 0 ? ret : -EINVAL; 531 532 return buffer[3]; 533 } 534 535 static int omen_thermal_profile_get(void) 536 { 537 u8 data; 538 539 int ret = ec_read(HP_OMEN_EC_THERMAL_PROFILE_OFFSET, &data); 540 541 if (ret) 542 return ret; 543 544 return data; 545 } 546 547 static int hp_wmi_fan_speed_max_set(int enabled) 548 { 549 int ret; 550 551 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM, 552 &enabled, sizeof(enabled), 0); 553 554 if (ret) 555 return ret < 0 ? ret : -EINVAL; 556 557 return enabled; 558 } 559 560 static int hp_wmi_fan_speed_max_get(void) 561 { 562 int val = 0, ret; 563 564 ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM, 565 &val, zero_if_sup(val), sizeof(val)); 566 567 if (ret) 568 return ret < 0 ? ret : -EINVAL; 569 570 return val; 571 } 572 573 static int __init hp_wmi_bios_2008_later(void) 574 { 575 int state = 0; 576 int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state, 577 zero_if_sup(state), sizeof(state)); 578 if (!ret) 579 return 1; 580 581 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; 582 } 583 584 static int __init hp_wmi_bios_2009_later(void) 585 { 586 u8 state[128]; 587 int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state, 588 zero_if_sup(state), sizeof(state)); 589 if (!ret) 590 return 1; 591 592 return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; 593 } 594 595 static int __init hp_wmi_enable_hotkeys(void) 596 { 597 int value = 0x6e; 598 int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value, 599 sizeof(value), 0); 600 601 return ret <= 0 ? ret : -EINVAL; 602 } 603 604 static int hp_wmi_set_block(void *data, bool blocked) 605 { 606 enum hp_wmi_radio r = (long)data; 607 int query = BIT(r + 8) | ((!blocked) << r); 608 int ret; 609 610 ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, 611 &query, sizeof(query), 0); 612 613 return ret <= 0 ? ret : -EINVAL; 614 } 615 616 static const struct rfkill_ops hp_wmi_rfkill_ops = { 617 .set_block = hp_wmi_set_block, 618 }; 619 620 static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) 621 { 622 int mask = 0x200 << (r * 8); 623 624 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); 625 626 /* TBD: Pass error */ 627 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); 628 629 return !(wireless & mask); 630 } 631 632 static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) 633 { 634 int mask = 0x800 << (r * 8); 635 636 int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); 637 638 /* TBD: Pass error */ 639 WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); 640 641 return !(wireless & mask); 642 } 643 644 static int hp_wmi_rfkill2_set_block(void *data, bool blocked) 645 { 646 int rfkill_id = (int)(long)data; 647 char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; 648 int ret; 649 650 ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE, 651 buffer, sizeof(buffer), 0); 652 653 return ret <= 0 ? ret : -EINVAL; 654 } 655 656 static const struct rfkill_ops hp_wmi_rfkill2_ops = { 657 .set_block = hp_wmi_rfkill2_set_block, 658 }; 659 660 static int hp_wmi_rfkill2_refresh(void) 661 { 662 struct bios_rfkill2_state state; 663 int err, i; 664 665 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, 666 zero_if_sup(state), sizeof(state)); 667 if (err) 668 return err; 669 670 for (i = 0; i < rfkill2_count; i++) { 671 int num = rfkill2[i].num; 672 struct bios_rfkill2_device_state *devstate; 673 674 devstate = &state.device[num]; 675 676 if (num >= state.count || 677 devstate->rfkill_id != rfkill2[i].id) { 678 pr_warn("power configuration of the wireless devices unexpectedly changed\n"); 679 continue; 680 } 681 682 rfkill_set_states(rfkill2[i].rfkill, 683 IS_SWBLOCKED(devstate->power), 684 IS_HWBLOCKED(devstate->power)); 685 } 686 687 return 0; 688 } 689 690 static ssize_t display_show(struct device *dev, struct device_attribute *attr, 691 char *buf) 692 { 693 int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY); 694 695 if (value < 0) 696 return value; 697 return sysfs_emit(buf, "%d\n", value); 698 } 699 700 static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr, 701 char *buf) 702 { 703 int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY); 704 705 if (value < 0) 706 return value; 707 return sysfs_emit(buf, "%d\n", value); 708 } 709 710 static ssize_t als_show(struct device *dev, struct device_attribute *attr, 711 char *buf) 712 { 713 int value = hp_wmi_read_int(HPWMI_ALS_QUERY); 714 715 if (value < 0) 716 return value; 717 return sysfs_emit(buf, "%d\n", value); 718 } 719 720 static ssize_t dock_show(struct device *dev, struct device_attribute *attr, 721 char *buf) 722 { 723 int value = hp_wmi_get_dock_state(); 724 725 if (value < 0) 726 return value; 727 return sysfs_emit(buf, "%d\n", value); 728 } 729 730 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr, 731 char *buf) 732 { 733 int value = hp_wmi_get_tablet_mode(); 734 735 if (value < 0) 736 return value; 737 return sysfs_emit(buf, "%d\n", value); 738 } 739 740 static ssize_t postcode_show(struct device *dev, struct device_attribute *attr, 741 char *buf) 742 { 743 /* Get the POST error code of previous boot failure. */ 744 int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY); 745 746 if (value < 0) 747 return value; 748 return sysfs_emit(buf, "0x%x\n", value); 749 } 750 751 static ssize_t als_store(struct device *dev, struct device_attribute *attr, 752 const char *buf, size_t count) 753 { 754 u32 tmp; 755 int ret; 756 757 ret = kstrtou32(buf, 10, &tmp); 758 if (ret) 759 return ret; 760 761 ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp, 762 sizeof(tmp), 0); 763 if (ret) 764 return ret < 0 ? ret : -EINVAL; 765 766 return count; 767 } 768 769 static ssize_t postcode_store(struct device *dev, struct device_attribute *attr, 770 const char *buf, size_t count) 771 { 772 u32 tmp = 1; 773 bool clear; 774 int ret; 775 776 ret = kstrtobool(buf, &clear); 777 if (ret) 778 return ret; 779 780 if (clear == false) 781 return -EINVAL; 782 783 /* Clear the POST error code. It is kept until cleared. */ 784 ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp, 785 sizeof(tmp), 0); 786 if (ret) 787 return ret < 0 ? ret : -EINVAL; 788 789 return count; 790 } 791 792 static int camera_shutter_input_setup(void) 793 { 794 int err; 795 796 camera_shutter_input_dev = input_allocate_device(); 797 if (!camera_shutter_input_dev) 798 return -ENOMEM; 799 800 camera_shutter_input_dev->name = "HP WMI camera shutter"; 801 camera_shutter_input_dev->phys = "wmi/input1"; 802 camera_shutter_input_dev->id.bustype = BUS_HOST; 803 804 __set_bit(EV_SW, camera_shutter_input_dev->evbit); 805 __set_bit(SW_CAMERA_LENS_COVER, camera_shutter_input_dev->swbit); 806 807 err = input_register_device(camera_shutter_input_dev); 808 if (err) 809 goto err_free_dev; 810 811 return 0; 812 813 err_free_dev: 814 input_free_device(camera_shutter_input_dev); 815 camera_shutter_input_dev = NULL; 816 return err; 817 } 818 819 static DEVICE_ATTR_RO(display); 820 static DEVICE_ATTR_RO(hddtemp); 821 static DEVICE_ATTR_RW(als); 822 static DEVICE_ATTR_RO(dock); 823 static DEVICE_ATTR_RO(tablet); 824 static DEVICE_ATTR_RW(postcode); 825 826 static struct attribute *hp_wmi_attrs[] = { 827 &dev_attr_display.attr, 828 &dev_attr_hddtemp.attr, 829 &dev_attr_als.attr, 830 &dev_attr_dock.attr, 831 &dev_attr_tablet.attr, 832 &dev_attr_postcode.attr, 833 NULL, 834 }; 835 ATTRIBUTE_GROUPS(hp_wmi); 836 837 static void hp_wmi_notify(u32 value, void *context) 838 { 839 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; 840 u32 event_id, event_data; 841 union acpi_object *obj; 842 acpi_status status; 843 u32 *location; 844 int key_code; 845 846 status = wmi_get_event_data(value, &response); 847 if (status != AE_OK) { 848 pr_info("bad event status 0x%x\n", status); 849 return; 850 } 851 852 obj = (union acpi_object *)response.pointer; 853 854 if (!obj) 855 return; 856 if (obj->type != ACPI_TYPE_BUFFER) { 857 pr_info("Unknown response received %d\n", obj->type); 858 kfree(obj); 859 return; 860 } 861 862 /* 863 * Depending on ACPI version the concatenation of id and event data 864 * inside _WED function will result in a 8 or 16 byte buffer. 865 */ 866 location = (u32 *)obj->buffer.pointer; 867 if (obj->buffer.length == 8) { 868 event_id = *location; 869 event_data = *(location + 1); 870 } else if (obj->buffer.length == 16) { 871 event_id = *location; 872 event_data = *(location + 2); 873 } else { 874 pr_info("Unknown buffer length %d\n", obj->buffer.length); 875 kfree(obj); 876 return; 877 } 878 kfree(obj); 879 880 switch (event_id) { 881 case HPWMI_DOCK_EVENT: 882 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) 883 input_report_switch(hp_wmi_input_dev, SW_DOCK, 884 hp_wmi_get_dock_state()); 885 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) 886 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, 887 hp_wmi_get_tablet_mode()); 888 input_sync(hp_wmi_input_dev); 889 break; 890 case HPWMI_PARK_HDD: 891 break; 892 case HPWMI_SMART_ADAPTER: 893 break; 894 case HPWMI_BEZEL_BUTTON: 895 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); 896 if (key_code < 0) 897 break; 898 899 if (!sparse_keymap_report_event(hp_wmi_input_dev, 900 key_code, 1, true)) 901 pr_info("Unknown key code - 0x%x\n", key_code); 902 break; 903 case HPWMI_OMEN_KEY: 904 if (event_data) /* Only should be true for HP Omen */ 905 key_code = event_data; 906 else 907 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); 908 909 if (!sparse_keymap_report_event(hp_wmi_input_dev, 910 key_code, 1, true)) 911 pr_info("Unknown key code - 0x%x\n", key_code); 912 break; 913 case HPWMI_WIRELESS: 914 if (rfkill2_count) { 915 hp_wmi_rfkill2_refresh(); 916 break; 917 } 918 919 if (wifi_rfkill) 920 rfkill_set_states(wifi_rfkill, 921 hp_wmi_get_sw_state(HPWMI_WIFI), 922 hp_wmi_get_hw_state(HPWMI_WIFI)); 923 if (bluetooth_rfkill) 924 rfkill_set_states(bluetooth_rfkill, 925 hp_wmi_get_sw_state(HPWMI_BLUETOOTH), 926 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 927 if (wwan_rfkill) 928 rfkill_set_states(wwan_rfkill, 929 hp_wmi_get_sw_state(HPWMI_WWAN), 930 hp_wmi_get_hw_state(HPWMI_WWAN)); 931 break; 932 case HPWMI_CPU_BATTERY_THROTTLE: 933 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); 934 break; 935 case HPWMI_LOCK_SWITCH: 936 break; 937 case HPWMI_LID_SWITCH: 938 break; 939 case HPWMI_SCREEN_ROTATION: 940 break; 941 case HPWMI_COOLSENSE_SYSTEM_MOBILE: 942 break; 943 case HPWMI_COOLSENSE_SYSTEM_HOT: 944 break; 945 case HPWMI_PROXIMITY_SENSOR: 946 break; 947 case HPWMI_BACKLIT_KB_BRIGHTNESS: 948 break; 949 case HPWMI_PEAKSHIFT_PERIOD: 950 break; 951 case HPWMI_BATTERY_CHARGE_PERIOD: 952 break; 953 case HPWMI_SANITIZATION_MODE: 954 break; 955 case HPWMI_CAMERA_TOGGLE: 956 if (!camera_shutter_input_dev) 957 if (camera_shutter_input_setup()) { 958 pr_err("Failed to setup camera shutter input device\n"); 959 break; 960 } 961 if (event_data == 0xff) 962 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 1); 963 else if (event_data == 0xfe) 964 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 0); 965 else 966 pr_warn("Unknown camera shutter state - 0x%x\n", event_data); 967 input_sync(camera_shutter_input_dev); 968 break; 969 case HPWMI_SMART_EXPERIENCE_APP: 970 break; 971 default: 972 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); 973 break; 974 } 975 } 976 977 static int __init hp_wmi_input_setup(void) 978 { 979 acpi_status status; 980 int err, val; 981 982 hp_wmi_input_dev = input_allocate_device(); 983 if (!hp_wmi_input_dev) 984 return -ENOMEM; 985 986 hp_wmi_input_dev->name = "HP WMI hotkeys"; 987 hp_wmi_input_dev->phys = "wmi/input0"; 988 hp_wmi_input_dev->id.bustype = BUS_HOST; 989 990 __set_bit(EV_SW, hp_wmi_input_dev->evbit); 991 992 /* Dock */ 993 val = hp_wmi_get_dock_state(); 994 if (!(val < 0)) { 995 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); 996 input_report_switch(hp_wmi_input_dev, SW_DOCK, val); 997 } 998 999 /* Tablet mode */ 1000 val = hp_wmi_get_tablet_mode(); 1001 if (!(val < 0)) { 1002 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); 1003 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); 1004 } 1005 1006 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); 1007 if (err) 1008 goto err_free_dev; 1009 1010 /* Set initial hardware state */ 1011 input_sync(hp_wmi_input_dev); 1012 1013 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later()) 1014 hp_wmi_enable_hotkeys(); 1015 1016 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); 1017 if (ACPI_FAILURE(status)) { 1018 err = -EIO; 1019 goto err_free_dev; 1020 } 1021 1022 err = input_register_device(hp_wmi_input_dev); 1023 if (err) 1024 goto err_uninstall_notifier; 1025 1026 return 0; 1027 1028 err_uninstall_notifier: 1029 wmi_remove_notify_handler(HPWMI_EVENT_GUID); 1030 err_free_dev: 1031 input_free_device(hp_wmi_input_dev); 1032 return err; 1033 } 1034 1035 static void hp_wmi_input_destroy(void) 1036 { 1037 wmi_remove_notify_handler(HPWMI_EVENT_GUID); 1038 input_unregister_device(hp_wmi_input_dev); 1039 } 1040 1041 static int __init hp_wmi_rfkill_setup(struct platform_device *device) 1042 { 1043 int err, wireless; 1044 1045 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); 1046 if (wireless < 0) 1047 return wireless; 1048 1049 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless, 1050 sizeof(wireless), 0); 1051 if (err) 1052 return err; 1053 1054 if (wireless & 0x1) { 1055 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, 1056 RFKILL_TYPE_WLAN, 1057 &hp_wmi_rfkill_ops, 1058 (void *) HPWMI_WIFI); 1059 if (!wifi_rfkill) 1060 return -ENOMEM; 1061 rfkill_init_sw_state(wifi_rfkill, 1062 hp_wmi_get_sw_state(HPWMI_WIFI)); 1063 rfkill_set_hw_state(wifi_rfkill, 1064 hp_wmi_get_hw_state(HPWMI_WIFI)); 1065 err = rfkill_register(wifi_rfkill); 1066 if (err) 1067 goto register_wifi_error; 1068 } 1069 1070 if (wireless & 0x2) { 1071 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, 1072 RFKILL_TYPE_BLUETOOTH, 1073 &hp_wmi_rfkill_ops, 1074 (void *) HPWMI_BLUETOOTH); 1075 if (!bluetooth_rfkill) { 1076 err = -ENOMEM; 1077 goto register_bluetooth_error; 1078 } 1079 rfkill_init_sw_state(bluetooth_rfkill, 1080 hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); 1081 rfkill_set_hw_state(bluetooth_rfkill, 1082 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 1083 err = rfkill_register(bluetooth_rfkill); 1084 if (err) 1085 goto register_bluetooth_error; 1086 } 1087 1088 if (wireless & 0x4) { 1089 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, 1090 RFKILL_TYPE_WWAN, 1091 &hp_wmi_rfkill_ops, 1092 (void *) HPWMI_WWAN); 1093 if (!wwan_rfkill) { 1094 err = -ENOMEM; 1095 goto register_wwan_error; 1096 } 1097 rfkill_init_sw_state(wwan_rfkill, 1098 hp_wmi_get_sw_state(HPWMI_WWAN)); 1099 rfkill_set_hw_state(wwan_rfkill, 1100 hp_wmi_get_hw_state(HPWMI_WWAN)); 1101 err = rfkill_register(wwan_rfkill); 1102 if (err) 1103 goto register_wwan_error; 1104 } 1105 1106 return 0; 1107 1108 register_wwan_error: 1109 rfkill_destroy(wwan_rfkill); 1110 wwan_rfkill = NULL; 1111 if (bluetooth_rfkill) 1112 rfkill_unregister(bluetooth_rfkill); 1113 register_bluetooth_error: 1114 rfkill_destroy(bluetooth_rfkill); 1115 bluetooth_rfkill = NULL; 1116 if (wifi_rfkill) 1117 rfkill_unregister(wifi_rfkill); 1118 register_wifi_error: 1119 rfkill_destroy(wifi_rfkill); 1120 wifi_rfkill = NULL; 1121 return err; 1122 } 1123 1124 static int __init hp_wmi_rfkill2_setup(struct platform_device *device) 1125 { 1126 struct bios_rfkill2_state state; 1127 int err, i; 1128 1129 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, 1130 zero_if_sup(state), sizeof(state)); 1131 if (err) 1132 return err < 0 ? err : -EINVAL; 1133 1134 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { 1135 pr_warn("unable to parse 0x1b query output\n"); 1136 return -EINVAL; 1137 } 1138 1139 for (i = 0; i < state.count; i++) { 1140 struct rfkill *rfkill; 1141 enum rfkill_type type; 1142 char *name; 1143 1144 switch (state.device[i].radio_type) { 1145 case HPWMI_WIFI: 1146 type = RFKILL_TYPE_WLAN; 1147 name = "hp-wifi"; 1148 break; 1149 case HPWMI_BLUETOOTH: 1150 type = RFKILL_TYPE_BLUETOOTH; 1151 name = "hp-bluetooth"; 1152 break; 1153 case HPWMI_WWAN: 1154 type = RFKILL_TYPE_WWAN; 1155 name = "hp-wwan"; 1156 break; 1157 case HPWMI_GPS: 1158 type = RFKILL_TYPE_GPS; 1159 name = "hp-gps"; 1160 break; 1161 default: 1162 pr_warn("unknown device type 0x%x\n", 1163 state.device[i].radio_type); 1164 continue; 1165 } 1166 1167 if (!state.device[i].vendor_id) { 1168 pr_warn("zero device %d while %d reported\n", 1169 i, state.count); 1170 continue; 1171 } 1172 1173 rfkill = rfkill_alloc(name, &device->dev, type, 1174 &hp_wmi_rfkill2_ops, (void *)(long)i); 1175 if (!rfkill) { 1176 err = -ENOMEM; 1177 goto fail; 1178 } 1179 1180 rfkill2[rfkill2_count].id = state.device[i].rfkill_id; 1181 rfkill2[rfkill2_count].num = i; 1182 rfkill2[rfkill2_count].rfkill = rfkill; 1183 1184 rfkill_init_sw_state(rfkill, 1185 IS_SWBLOCKED(state.device[i].power)); 1186 rfkill_set_hw_state(rfkill, 1187 IS_HWBLOCKED(state.device[i].power)); 1188 1189 if (!(state.device[i].power & HPWMI_POWER_BIOS)) 1190 pr_info("device %s blocked by BIOS\n", name); 1191 1192 err = rfkill_register(rfkill); 1193 if (err) { 1194 rfkill_destroy(rfkill); 1195 goto fail; 1196 } 1197 1198 rfkill2_count++; 1199 } 1200 1201 return 0; 1202 fail: 1203 for (; rfkill2_count > 0; rfkill2_count--) { 1204 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); 1205 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); 1206 } 1207 return err; 1208 } 1209 1210 static int platform_profile_omen_get_ec(enum platform_profile_option *profile) 1211 { 1212 int tp; 1213 1214 tp = omen_thermal_profile_get(); 1215 if (tp < 0) 1216 return tp; 1217 1218 switch (tp) { 1219 case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE: 1220 case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE: 1221 *profile = PLATFORM_PROFILE_PERFORMANCE; 1222 break; 1223 case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT: 1224 case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT: 1225 *profile = PLATFORM_PROFILE_BALANCED; 1226 break; 1227 case HP_OMEN_V0_THERMAL_PROFILE_COOL: 1228 case HP_OMEN_V1_THERMAL_PROFILE_COOL: 1229 *profile = PLATFORM_PROFILE_COOL; 1230 break; 1231 default: 1232 return -EINVAL; 1233 } 1234 1235 return 0; 1236 } 1237 1238 static int platform_profile_omen_get(struct platform_profile_handler *pprof, 1239 enum platform_profile_option *profile) 1240 { 1241 /* 1242 * We directly return the stored platform profile, as the embedded 1243 * controller will not accept switching to the performance option when 1244 * the conditions are not met (e.g. the laptop is not plugged in). 1245 * 1246 * If we directly return what the EC reports, the platform profile will 1247 * immediately "switch back" to normal mode, which is against the 1248 * expected behaviour from a userspace point of view, as described in 1249 * the Platform Profile Section page of the kernel documentation. 1250 * 1251 * See also omen_powersource_event. 1252 */ 1253 guard(mutex)(&active_platform_profile_lock); 1254 *profile = active_platform_profile; 1255 1256 return 0; 1257 } 1258 1259 static bool has_omen_thermal_profile_ec_timer(void) 1260 { 1261 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 1262 1263 if (!board_name) 1264 return false; 1265 1266 return match_string(omen_timed_thermal_profile_boards, 1267 ARRAY_SIZE(omen_timed_thermal_profile_boards), 1268 board_name) >= 0; 1269 } 1270 1271 inline int omen_thermal_profile_ec_flags_set(enum hp_thermal_profile_omen_flags flags) 1272 { 1273 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_FLAGS_OFFSET, flags); 1274 } 1275 1276 inline int omen_thermal_profile_ec_timer_set(u8 value) 1277 { 1278 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_TIMER_OFFSET, value); 1279 } 1280 1281 static int platform_profile_omen_set_ec(enum platform_profile_option profile) 1282 { 1283 int err, tp, tp_version; 1284 enum hp_thermal_profile_omen_flags flags = 0; 1285 1286 tp_version = omen_get_thermal_policy_version(); 1287 1288 if (tp_version < 0 || tp_version > 1) 1289 return -EOPNOTSUPP; 1290 1291 switch (profile) { 1292 case PLATFORM_PROFILE_PERFORMANCE: 1293 if (tp_version == 0) 1294 tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE; 1295 else 1296 tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE; 1297 break; 1298 case PLATFORM_PROFILE_BALANCED: 1299 if (tp_version == 0) 1300 tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT; 1301 else 1302 tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT; 1303 break; 1304 case PLATFORM_PROFILE_COOL: 1305 if (tp_version == 0) 1306 tp = HP_OMEN_V0_THERMAL_PROFILE_COOL; 1307 else 1308 tp = HP_OMEN_V1_THERMAL_PROFILE_COOL; 1309 break; 1310 default: 1311 return -EOPNOTSUPP; 1312 } 1313 1314 err = omen_thermal_profile_set(tp); 1315 if (err < 0) 1316 return err; 1317 1318 if (has_omen_thermal_profile_ec_timer()) { 1319 err = omen_thermal_profile_ec_timer_set(0); 1320 if (err < 0) 1321 return err; 1322 1323 if (profile == PLATFORM_PROFILE_PERFORMANCE) 1324 flags = HP_OMEN_EC_FLAGS_NOTIMER | 1325 HP_OMEN_EC_FLAGS_TURBO; 1326 1327 err = omen_thermal_profile_ec_flags_set(flags); 1328 if (err < 0) 1329 return err; 1330 } 1331 1332 return 0; 1333 } 1334 1335 static int platform_profile_omen_set(struct platform_profile_handler *pprof, 1336 enum platform_profile_option profile) 1337 { 1338 int err; 1339 1340 guard(mutex)(&active_platform_profile_lock); 1341 1342 err = platform_profile_omen_set_ec(profile); 1343 if (err < 0) 1344 return err; 1345 1346 active_platform_profile = profile; 1347 1348 return 0; 1349 } 1350 1351 static int thermal_profile_get(void) 1352 { 1353 return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY); 1354 } 1355 1356 static int thermal_profile_set(int thermal_profile) 1357 { 1358 return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile, 1359 sizeof(thermal_profile), 0); 1360 } 1361 1362 static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof, 1363 enum platform_profile_option *profile) 1364 { 1365 int tp; 1366 1367 tp = thermal_profile_get(); 1368 if (tp < 0) 1369 return tp; 1370 1371 switch (tp) { 1372 case HP_THERMAL_PROFILE_PERFORMANCE: 1373 *profile = PLATFORM_PROFILE_PERFORMANCE; 1374 break; 1375 case HP_THERMAL_PROFILE_DEFAULT: 1376 *profile = PLATFORM_PROFILE_BALANCED; 1377 break; 1378 case HP_THERMAL_PROFILE_COOL: 1379 *profile = PLATFORM_PROFILE_COOL; 1380 break; 1381 case HP_THERMAL_PROFILE_QUIET: 1382 *profile = PLATFORM_PROFILE_QUIET; 1383 break; 1384 default: 1385 return -EINVAL; 1386 } 1387 1388 return 0; 1389 } 1390 1391 static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof, 1392 enum platform_profile_option profile) 1393 { 1394 int err, tp; 1395 1396 switch (profile) { 1397 case PLATFORM_PROFILE_PERFORMANCE: 1398 tp = HP_THERMAL_PROFILE_PERFORMANCE; 1399 break; 1400 case PLATFORM_PROFILE_BALANCED: 1401 tp = HP_THERMAL_PROFILE_DEFAULT; 1402 break; 1403 case PLATFORM_PROFILE_COOL: 1404 tp = HP_THERMAL_PROFILE_COOL; 1405 break; 1406 case PLATFORM_PROFILE_QUIET: 1407 tp = HP_THERMAL_PROFILE_QUIET; 1408 break; 1409 default: 1410 return -EOPNOTSUPP; 1411 } 1412 1413 err = thermal_profile_set(tp); 1414 if (err) 1415 return err; 1416 1417 return 0; 1418 } 1419 1420 static bool is_victus_thermal_profile(void) 1421 { 1422 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 1423 1424 if (!board_name) 1425 return false; 1426 1427 return match_string(victus_thermal_profile_boards, 1428 ARRAY_SIZE(victus_thermal_profile_boards), 1429 board_name) >= 0; 1430 } 1431 1432 static int platform_profile_victus_get_ec(enum platform_profile_option *profile) 1433 { 1434 int tp; 1435 1436 tp = omen_thermal_profile_get(); 1437 if (tp < 0) 1438 return tp; 1439 1440 switch (tp) { 1441 case HP_VICTUS_THERMAL_PROFILE_PERFORMANCE: 1442 *profile = PLATFORM_PROFILE_PERFORMANCE; 1443 break; 1444 case HP_VICTUS_THERMAL_PROFILE_DEFAULT: 1445 *profile = PLATFORM_PROFILE_BALANCED; 1446 break; 1447 case HP_VICTUS_THERMAL_PROFILE_QUIET: 1448 *profile = PLATFORM_PROFILE_QUIET; 1449 break; 1450 default: 1451 return -EOPNOTSUPP; 1452 } 1453 1454 return 0; 1455 } 1456 1457 static int platform_profile_victus_get(struct platform_profile_handler *pprof, 1458 enum platform_profile_option *profile) 1459 { 1460 /* Same behaviour as platform_profile_omen_get */ 1461 return platform_profile_omen_get(pprof, profile); 1462 } 1463 1464 static int platform_profile_victus_set_ec(enum platform_profile_option profile) 1465 { 1466 int err, tp; 1467 1468 switch (profile) { 1469 case PLATFORM_PROFILE_PERFORMANCE: 1470 tp = HP_VICTUS_THERMAL_PROFILE_PERFORMANCE; 1471 break; 1472 case PLATFORM_PROFILE_BALANCED: 1473 tp = HP_VICTUS_THERMAL_PROFILE_DEFAULT; 1474 break; 1475 case PLATFORM_PROFILE_QUIET: 1476 tp = HP_VICTUS_THERMAL_PROFILE_QUIET; 1477 break; 1478 default: 1479 return -EOPNOTSUPP; 1480 } 1481 1482 err = omen_thermal_profile_set(tp); 1483 if (err < 0) 1484 return err; 1485 1486 return 0; 1487 } 1488 1489 static int platform_profile_victus_set(struct platform_profile_handler *pprof, 1490 enum platform_profile_option profile) 1491 { 1492 int err; 1493 1494 guard(mutex)(&active_platform_profile_lock); 1495 1496 err = platform_profile_victus_set_ec(profile); 1497 if (err < 0) 1498 return err; 1499 1500 active_platform_profile = profile; 1501 1502 return 0; 1503 } 1504 1505 static int omen_powersource_event(struct notifier_block *nb, 1506 unsigned long value, 1507 void *data) 1508 { 1509 struct acpi_bus_event *event_entry = data; 1510 enum platform_profile_option actual_profile; 1511 int err; 1512 1513 if (strcmp(event_entry->device_class, ACPI_AC_CLASS) != 0) 1514 return NOTIFY_DONE; 1515 1516 pr_debug("Received power source device event\n"); 1517 1518 guard(mutex)(&active_platform_profile_lock); 1519 1520 /* 1521 * This handler can only be called on Omen and Victus models, so 1522 * there's no need to call is_victus_thermal_profile() here. 1523 */ 1524 if (is_omen_thermal_profile()) 1525 err = platform_profile_omen_get_ec(&actual_profile); 1526 else 1527 err = platform_profile_victus_get_ec(&actual_profile); 1528 1529 if (err < 0) { 1530 /* 1531 * Although we failed to get the current platform profile, we 1532 * still want the other event consumers to process it. 1533 */ 1534 pr_warn("Failed to read current platform profile (%d)\n", err); 1535 return NOTIFY_DONE; 1536 } 1537 1538 /* 1539 * If we're back on AC and that the user-chosen power profile is 1540 * different from what the EC reports, we restore the user-chosen 1541 * one. 1542 */ 1543 if (power_supply_is_system_supplied() <= 0 || 1544 active_platform_profile == actual_profile) { 1545 pr_debug("Platform profile update skipped, conditions unmet\n"); 1546 return NOTIFY_DONE; 1547 } 1548 1549 if (is_omen_thermal_profile()) 1550 err = platform_profile_omen_set_ec(active_platform_profile); 1551 else 1552 err = platform_profile_victus_set_ec(active_platform_profile); 1553 1554 if (err < 0) { 1555 pr_warn("Failed to restore platform profile (%d)\n", err); 1556 return NOTIFY_DONE; 1557 } 1558 1559 return NOTIFY_OK; 1560 } 1561 1562 static int omen_register_powersource_event_handler(void) 1563 { 1564 int err; 1565 1566 platform_power_source_nb.notifier_call = omen_powersource_event; 1567 err = register_acpi_notifier(&platform_power_source_nb); 1568 1569 if (err < 0) { 1570 pr_warn("Failed to install ACPI power source notify handler\n"); 1571 return err; 1572 } 1573 1574 return 0; 1575 } 1576 1577 static inline void omen_unregister_powersource_event_handler(void) 1578 { 1579 unregister_acpi_notifier(&platform_power_source_nb); 1580 } 1581 1582 static int thermal_profile_setup(void) 1583 { 1584 int err, tp; 1585 1586 if (is_omen_thermal_profile()) { 1587 err = platform_profile_omen_get_ec(&active_platform_profile); 1588 if (err < 0) 1589 return err; 1590 1591 /* 1592 * call thermal profile write command to ensure that the 1593 * firmware correctly sets the OEM variables 1594 */ 1595 err = platform_profile_omen_set_ec(active_platform_profile); 1596 if (err < 0) 1597 return err; 1598 1599 platform_profile_handler.profile_get = platform_profile_omen_get; 1600 platform_profile_handler.profile_set = platform_profile_omen_set; 1601 1602 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); 1603 } else if (is_victus_thermal_profile()) { 1604 err = platform_profile_victus_get_ec(&active_platform_profile); 1605 if (err < 0) 1606 return err; 1607 1608 /* 1609 * call thermal profile write command to ensure that the 1610 * firmware correctly sets the OEM variables 1611 */ 1612 err = platform_profile_victus_set_ec(active_platform_profile); 1613 if (err < 0) 1614 return err; 1615 1616 platform_profile_handler.profile_get = platform_profile_victus_get; 1617 platform_profile_handler.profile_set = platform_profile_victus_set; 1618 1619 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices); 1620 } else { 1621 tp = thermal_profile_get(); 1622 1623 if (tp < 0) 1624 return tp; 1625 1626 /* 1627 * call thermal profile write command to ensure that the 1628 * firmware correctly sets the OEM variables for the DPTF 1629 */ 1630 err = thermal_profile_set(tp); 1631 if (err) 1632 return err; 1633 1634 platform_profile_handler.profile_get = hp_wmi_platform_profile_get; 1635 platform_profile_handler.profile_set = hp_wmi_platform_profile_set; 1636 1637 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices); 1638 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); 1639 } 1640 1641 set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices); 1642 set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices); 1643 1644 err = platform_profile_register(&platform_profile_handler); 1645 if (err) 1646 return err; 1647 1648 platform_profile_support = true; 1649 1650 return 0; 1651 } 1652 1653 static int hp_wmi_hwmon_init(void); 1654 1655 static int __init hp_wmi_bios_setup(struct platform_device *device) 1656 { 1657 int err; 1658 /* clear detected rfkill devices */ 1659 wifi_rfkill = NULL; 1660 bluetooth_rfkill = NULL; 1661 wwan_rfkill = NULL; 1662 rfkill2_count = 0; 1663 1664 /* 1665 * In pre-2009 BIOS, command 1Bh return 0x4 to indicate that 1666 * BIOS no longer controls the power for the wireless 1667 * devices. All features supported by this command will no 1668 * longer be supported. 1669 */ 1670 if (!hp_wmi_bios_2009_later()) { 1671 if (hp_wmi_rfkill_setup(device)) 1672 hp_wmi_rfkill2_setup(device); 1673 } 1674 1675 err = hp_wmi_hwmon_init(); 1676 1677 if (err < 0) 1678 return err; 1679 1680 thermal_profile_setup(); 1681 1682 return 0; 1683 } 1684 1685 static void __exit hp_wmi_bios_remove(struct platform_device *device) 1686 { 1687 int i; 1688 1689 for (i = 0; i < rfkill2_count; i++) { 1690 rfkill_unregister(rfkill2[i].rfkill); 1691 rfkill_destroy(rfkill2[i].rfkill); 1692 } 1693 1694 if (wifi_rfkill) { 1695 rfkill_unregister(wifi_rfkill); 1696 rfkill_destroy(wifi_rfkill); 1697 } 1698 if (bluetooth_rfkill) { 1699 rfkill_unregister(bluetooth_rfkill); 1700 rfkill_destroy(bluetooth_rfkill); 1701 } 1702 if (wwan_rfkill) { 1703 rfkill_unregister(wwan_rfkill); 1704 rfkill_destroy(wwan_rfkill); 1705 } 1706 1707 if (platform_profile_support) 1708 platform_profile_remove(); 1709 } 1710 1711 static int hp_wmi_resume_handler(struct device *device) 1712 { 1713 /* 1714 * Hardware state may have changed while suspended, so trigger 1715 * input events for the current state. As this is a switch, 1716 * the input layer will only actually pass it on if the state 1717 * changed. 1718 */ 1719 if (hp_wmi_input_dev) { 1720 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) 1721 input_report_switch(hp_wmi_input_dev, SW_DOCK, 1722 hp_wmi_get_dock_state()); 1723 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) 1724 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, 1725 hp_wmi_get_tablet_mode()); 1726 input_sync(hp_wmi_input_dev); 1727 } 1728 1729 if (rfkill2_count) 1730 hp_wmi_rfkill2_refresh(); 1731 1732 if (wifi_rfkill) 1733 rfkill_set_states(wifi_rfkill, 1734 hp_wmi_get_sw_state(HPWMI_WIFI), 1735 hp_wmi_get_hw_state(HPWMI_WIFI)); 1736 if (bluetooth_rfkill) 1737 rfkill_set_states(bluetooth_rfkill, 1738 hp_wmi_get_sw_state(HPWMI_BLUETOOTH), 1739 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 1740 if (wwan_rfkill) 1741 rfkill_set_states(wwan_rfkill, 1742 hp_wmi_get_sw_state(HPWMI_WWAN), 1743 hp_wmi_get_hw_state(HPWMI_WWAN)); 1744 1745 return 0; 1746 } 1747 1748 static const struct dev_pm_ops hp_wmi_pm_ops = { 1749 .resume = hp_wmi_resume_handler, 1750 .restore = hp_wmi_resume_handler, 1751 }; 1752 1753 /* 1754 * hp_wmi_bios_remove() lives in .exit.text. For drivers registered via 1755 * module_platform_driver_probe() this is ok because they cannot get unbound at 1756 * runtime. So mark the driver struct with __refdata to prevent modpost 1757 * triggering a section mismatch warning. 1758 */ 1759 static struct platform_driver hp_wmi_driver __refdata = { 1760 .driver = { 1761 .name = "hp-wmi", 1762 .pm = &hp_wmi_pm_ops, 1763 .dev_groups = hp_wmi_groups, 1764 }, 1765 .remove_new = __exit_p(hp_wmi_bios_remove), 1766 }; 1767 1768 static umode_t hp_wmi_hwmon_is_visible(const void *data, 1769 enum hwmon_sensor_types type, 1770 u32 attr, int channel) 1771 { 1772 switch (type) { 1773 case hwmon_pwm: 1774 return 0644; 1775 case hwmon_fan: 1776 if (hp_wmi_get_fan_speed(channel) >= 0) 1777 return 0444; 1778 break; 1779 default: 1780 return 0; 1781 } 1782 1783 return 0; 1784 } 1785 1786 static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type, 1787 u32 attr, int channel, long *val) 1788 { 1789 int ret; 1790 1791 switch (type) { 1792 case hwmon_fan: 1793 ret = hp_wmi_get_fan_speed(channel); 1794 1795 if (ret < 0) 1796 return ret; 1797 *val = ret; 1798 return 0; 1799 case hwmon_pwm: 1800 switch (hp_wmi_fan_speed_max_get()) { 1801 case 0: 1802 /* 0 is automatic fan, which is 2 for hwmon */ 1803 *val = 2; 1804 return 0; 1805 case 1: 1806 /* 1 is max fan, which is 0 1807 * (no fan speed control) for hwmon 1808 */ 1809 *val = 0; 1810 return 0; 1811 default: 1812 /* shouldn't happen */ 1813 return -ENODATA; 1814 } 1815 default: 1816 return -EINVAL; 1817 } 1818 } 1819 1820 static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type, 1821 u32 attr, int channel, long val) 1822 { 1823 switch (type) { 1824 case hwmon_pwm: 1825 switch (val) { 1826 case 0: 1827 /* 0 is no fan speed control (max), which is 1 for us */ 1828 return hp_wmi_fan_speed_max_set(1); 1829 case 2: 1830 /* 2 is automatic speed control, which is 0 for us */ 1831 return hp_wmi_fan_speed_max_set(0); 1832 default: 1833 /* we don't support manual fan speed control */ 1834 return -EINVAL; 1835 } 1836 default: 1837 return -EOPNOTSUPP; 1838 } 1839 } 1840 1841 static const struct hwmon_channel_info * const info[] = { 1842 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT), 1843 HWMON_CHANNEL_INFO(pwm, HWMON_PWM_ENABLE), 1844 NULL 1845 }; 1846 1847 static const struct hwmon_ops ops = { 1848 .is_visible = hp_wmi_hwmon_is_visible, 1849 .read = hp_wmi_hwmon_read, 1850 .write = hp_wmi_hwmon_write, 1851 }; 1852 1853 static const struct hwmon_chip_info chip_info = { 1854 .ops = &ops, 1855 .info = info, 1856 }; 1857 1858 static int hp_wmi_hwmon_init(void) 1859 { 1860 struct device *dev = &hp_wmi_platform_dev->dev; 1861 struct device *hwmon; 1862 1863 hwmon = devm_hwmon_device_register_with_info(dev, "hp", &hp_wmi_driver, 1864 &chip_info, NULL); 1865 1866 if (IS_ERR(hwmon)) { 1867 dev_err(dev, "Could not register hp hwmon device\n"); 1868 return PTR_ERR(hwmon); 1869 } 1870 1871 return 0; 1872 } 1873 1874 static int __init hp_wmi_init(void) 1875 { 1876 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); 1877 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); 1878 int err, tmp = 0; 1879 1880 if (!bios_capable && !event_capable) 1881 return -ENODEV; 1882 1883 if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp, 1884 sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS) 1885 zero_insize_support = true; 1886 1887 if (event_capable) { 1888 err = hp_wmi_input_setup(); 1889 if (err) 1890 return err; 1891 } 1892 1893 if (bios_capable) { 1894 hp_wmi_platform_dev = 1895 platform_device_register_simple("hp-wmi", PLATFORM_DEVID_NONE, NULL, 0); 1896 if (IS_ERR(hp_wmi_platform_dev)) { 1897 err = PTR_ERR(hp_wmi_platform_dev); 1898 goto err_destroy_input; 1899 } 1900 1901 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); 1902 if (err) 1903 goto err_unregister_device; 1904 } 1905 1906 if (is_omen_thermal_profile() || is_victus_thermal_profile()) { 1907 err = omen_register_powersource_event_handler(); 1908 if (err) 1909 goto err_unregister_device; 1910 } 1911 1912 return 0; 1913 1914 err_unregister_device: 1915 platform_device_unregister(hp_wmi_platform_dev); 1916 err_destroy_input: 1917 if (event_capable) 1918 hp_wmi_input_destroy(); 1919 1920 return err; 1921 } 1922 module_init(hp_wmi_init); 1923 1924 static void __exit hp_wmi_exit(void) 1925 { 1926 if (is_omen_thermal_profile() || is_victus_thermal_profile()) 1927 omen_unregister_powersource_event_handler(); 1928 1929 if (wmi_has_guid(HPWMI_EVENT_GUID)) 1930 hp_wmi_input_destroy(); 1931 1932 if (camera_shutter_input_dev) 1933 input_unregister_device(camera_shutter_input_dev); 1934 1935 if (hp_wmi_platform_dev) { 1936 platform_device_unregister(hp_wmi_platform_dev); 1937 platform_driver_unregister(&hp_wmi_driver); 1938 } 1939 } 1940 module_exit(hp_wmi_exit); 1941