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(union acpi_object *obj, void *context) 838 { 839 u32 event_id, event_data; 840 u32 *location; 841 int key_code; 842 843 if (!obj) 844 return; 845 if (obj->type != ACPI_TYPE_BUFFER) { 846 pr_info("Unknown response received %d\n", obj->type); 847 return; 848 } 849 850 /* 851 * Depending on ACPI version the concatenation of id and event data 852 * inside _WED function will result in a 8 or 16 byte buffer. 853 */ 854 location = (u32 *)obj->buffer.pointer; 855 if (obj->buffer.length == 8) { 856 event_id = *location; 857 event_data = *(location + 1); 858 } else if (obj->buffer.length == 16) { 859 event_id = *location; 860 event_data = *(location + 2); 861 } else { 862 pr_info("Unknown buffer length %d\n", obj->buffer.length); 863 return; 864 } 865 866 switch (event_id) { 867 case HPWMI_DOCK_EVENT: 868 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) 869 input_report_switch(hp_wmi_input_dev, SW_DOCK, 870 hp_wmi_get_dock_state()); 871 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) 872 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, 873 hp_wmi_get_tablet_mode()); 874 input_sync(hp_wmi_input_dev); 875 break; 876 case HPWMI_PARK_HDD: 877 break; 878 case HPWMI_SMART_ADAPTER: 879 break; 880 case HPWMI_BEZEL_BUTTON: 881 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); 882 if (key_code < 0) 883 break; 884 885 if (!sparse_keymap_report_event(hp_wmi_input_dev, 886 key_code, 1, true)) 887 pr_info("Unknown key code - 0x%x\n", key_code); 888 break; 889 case HPWMI_OMEN_KEY: 890 if (event_data) /* Only should be true for HP Omen */ 891 key_code = event_data; 892 else 893 key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); 894 895 if (!sparse_keymap_report_event(hp_wmi_input_dev, 896 key_code, 1, true)) 897 pr_info("Unknown key code - 0x%x\n", key_code); 898 break; 899 case HPWMI_WIRELESS: 900 if (rfkill2_count) { 901 hp_wmi_rfkill2_refresh(); 902 break; 903 } 904 905 if (wifi_rfkill) 906 rfkill_set_states(wifi_rfkill, 907 hp_wmi_get_sw_state(HPWMI_WIFI), 908 hp_wmi_get_hw_state(HPWMI_WIFI)); 909 if (bluetooth_rfkill) 910 rfkill_set_states(bluetooth_rfkill, 911 hp_wmi_get_sw_state(HPWMI_BLUETOOTH), 912 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 913 if (wwan_rfkill) 914 rfkill_set_states(wwan_rfkill, 915 hp_wmi_get_sw_state(HPWMI_WWAN), 916 hp_wmi_get_hw_state(HPWMI_WWAN)); 917 break; 918 case HPWMI_CPU_BATTERY_THROTTLE: 919 pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); 920 break; 921 case HPWMI_LOCK_SWITCH: 922 break; 923 case HPWMI_LID_SWITCH: 924 break; 925 case HPWMI_SCREEN_ROTATION: 926 break; 927 case HPWMI_COOLSENSE_SYSTEM_MOBILE: 928 break; 929 case HPWMI_COOLSENSE_SYSTEM_HOT: 930 break; 931 case HPWMI_PROXIMITY_SENSOR: 932 break; 933 case HPWMI_BACKLIT_KB_BRIGHTNESS: 934 break; 935 case HPWMI_PEAKSHIFT_PERIOD: 936 break; 937 case HPWMI_BATTERY_CHARGE_PERIOD: 938 break; 939 case HPWMI_SANITIZATION_MODE: 940 break; 941 case HPWMI_CAMERA_TOGGLE: 942 if (!camera_shutter_input_dev) 943 if (camera_shutter_input_setup()) { 944 pr_err("Failed to setup camera shutter input device\n"); 945 break; 946 } 947 if (event_data == 0xff) 948 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 1); 949 else if (event_data == 0xfe) 950 input_report_switch(camera_shutter_input_dev, SW_CAMERA_LENS_COVER, 0); 951 else 952 pr_warn("Unknown camera shutter state - 0x%x\n", event_data); 953 input_sync(camera_shutter_input_dev); 954 break; 955 case HPWMI_SMART_EXPERIENCE_APP: 956 break; 957 default: 958 pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); 959 break; 960 } 961 } 962 963 static int __init hp_wmi_input_setup(void) 964 { 965 acpi_status status; 966 int err, val; 967 968 hp_wmi_input_dev = input_allocate_device(); 969 if (!hp_wmi_input_dev) 970 return -ENOMEM; 971 972 hp_wmi_input_dev->name = "HP WMI hotkeys"; 973 hp_wmi_input_dev->phys = "wmi/input0"; 974 hp_wmi_input_dev->id.bustype = BUS_HOST; 975 976 __set_bit(EV_SW, hp_wmi_input_dev->evbit); 977 978 /* Dock */ 979 val = hp_wmi_get_dock_state(); 980 if (!(val < 0)) { 981 __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); 982 input_report_switch(hp_wmi_input_dev, SW_DOCK, val); 983 } 984 985 /* Tablet mode */ 986 val = hp_wmi_get_tablet_mode(); 987 if (!(val < 0)) { 988 __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); 989 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); 990 } 991 992 err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); 993 if (err) 994 goto err_free_dev; 995 996 /* Set initial hardware state */ 997 input_sync(hp_wmi_input_dev); 998 999 if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later()) 1000 hp_wmi_enable_hotkeys(); 1001 1002 status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); 1003 if (ACPI_FAILURE(status)) { 1004 err = -EIO; 1005 goto err_free_dev; 1006 } 1007 1008 err = input_register_device(hp_wmi_input_dev); 1009 if (err) 1010 goto err_uninstall_notifier; 1011 1012 return 0; 1013 1014 err_uninstall_notifier: 1015 wmi_remove_notify_handler(HPWMI_EVENT_GUID); 1016 err_free_dev: 1017 input_free_device(hp_wmi_input_dev); 1018 return err; 1019 } 1020 1021 static void hp_wmi_input_destroy(void) 1022 { 1023 wmi_remove_notify_handler(HPWMI_EVENT_GUID); 1024 input_unregister_device(hp_wmi_input_dev); 1025 } 1026 1027 static int __init hp_wmi_rfkill_setup(struct platform_device *device) 1028 { 1029 int err, wireless; 1030 1031 wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); 1032 if (wireless < 0) 1033 return wireless; 1034 1035 err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless, 1036 sizeof(wireless), 0); 1037 if (err) 1038 return err; 1039 1040 if (wireless & 0x1) { 1041 wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, 1042 RFKILL_TYPE_WLAN, 1043 &hp_wmi_rfkill_ops, 1044 (void *) HPWMI_WIFI); 1045 if (!wifi_rfkill) 1046 return -ENOMEM; 1047 rfkill_init_sw_state(wifi_rfkill, 1048 hp_wmi_get_sw_state(HPWMI_WIFI)); 1049 rfkill_set_hw_state(wifi_rfkill, 1050 hp_wmi_get_hw_state(HPWMI_WIFI)); 1051 err = rfkill_register(wifi_rfkill); 1052 if (err) 1053 goto register_wifi_error; 1054 } 1055 1056 if (wireless & 0x2) { 1057 bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, 1058 RFKILL_TYPE_BLUETOOTH, 1059 &hp_wmi_rfkill_ops, 1060 (void *) HPWMI_BLUETOOTH); 1061 if (!bluetooth_rfkill) { 1062 err = -ENOMEM; 1063 goto register_bluetooth_error; 1064 } 1065 rfkill_init_sw_state(bluetooth_rfkill, 1066 hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); 1067 rfkill_set_hw_state(bluetooth_rfkill, 1068 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 1069 err = rfkill_register(bluetooth_rfkill); 1070 if (err) 1071 goto register_bluetooth_error; 1072 } 1073 1074 if (wireless & 0x4) { 1075 wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, 1076 RFKILL_TYPE_WWAN, 1077 &hp_wmi_rfkill_ops, 1078 (void *) HPWMI_WWAN); 1079 if (!wwan_rfkill) { 1080 err = -ENOMEM; 1081 goto register_wwan_error; 1082 } 1083 rfkill_init_sw_state(wwan_rfkill, 1084 hp_wmi_get_sw_state(HPWMI_WWAN)); 1085 rfkill_set_hw_state(wwan_rfkill, 1086 hp_wmi_get_hw_state(HPWMI_WWAN)); 1087 err = rfkill_register(wwan_rfkill); 1088 if (err) 1089 goto register_wwan_error; 1090 } 1091 1092 return 0; 1093 1094 register_wwan_error: 1095 rfkill_destroy(wwan_rfkill); 1096 wwan_rfkill = NULL; 1097 if (bluetooth_rfkill) 1098 rfkill_unregister(bluetooth_rfkill); 1099 register_bluetooth_error: 1100 rfkill_destroy(bluetooth_rfkill); 1101 bluetooth_rfkill = NULL; 1102 if (wifi_rfkill) 1103 rfkill_unregister(wifi_rfkill); 1104 register_wifi_error: 1105 rfkill_destroy(wifi_rfkill); 1106 wifi_rfkill = NULL; 1107 return err; 1108 } 1109 1110 static int __init hp_wmi_rfkill2_setup(struct platform_device *device) 1111 { 1112 struct bios_rfkill2_state state; 1113 int err, i; 1114 1115 err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, 1116 zero_if_sup(state), sizeof(state)); 1117 if (err) 1118 return err < 0 ? err : -EINVAL; 1119 1120 if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { 1121 pr_warn("unable to parse 0x1b query output\n"); 1122 return -EINVAL; 1123 } 1124 1125 for (i = 0; i < state.count; i++) { 1126 struct rfkill *rfkill; 1127 enum rfkill_type type; 1128 char *name; 1129 1130 switch (state.device[i].radio_type) { 1131 case HPWMI_WIFI: 1132 type = RFKILL_TYPE_WLAN; 1133 name = "hp-wifi"; 1134 break; 1135 case HPWMI_BLUETOOTH: 1136 type = RFKILL_TYPE_BLUETOOTH; 1137 name = "hp-bluetooth"; 1138 break; 1139 case HPWMI_WWAN: 1140 type = RFKILL_TYPE_WWAN; 1141 name = "hp-wwan"; 1142 break; 1143 case HPWMI_GPS: 1144 type = RFKILL_TYPE_GPS; 1145 name = "hp-gps"; 1146 break; 1147 default: 1148 pr_warn("unknown device type 0x%x\n", 1149 state.device[i].radio_type); 1150 continue; 1151 } 1152 1153 if (!state.device[i].vendor_id) { 1154 pr_warn("zero device %d while %d reported\n", 1155 i, state.count); 1156 continue; 1157 } 1158 1159 rfkill = rfkill_alloc(name, &device->dev, type, 1160 &hp_wmi_rfkill2_ops, (void *)(long)i); 1161 if (!rfkill) { 1162 err = -ENOMEM; 1163 goto fail; 1164 } 1165 1166 rfkill2[rfkill2_count].id = state.device[i].rfkill_id; 1167 rfkill2[rfkill2_count].num = i; 1168 rfkill2[rfkill2_count].rfkill = rfkill; 1169 1170 rfkill_init_sw_state(rfkill, 1171 IS_SWBLOCKED(state.device[i].power)); 1172 rfkill_set_hw_state(rfkill, 1173 IS_HWBLOCKED(state.device[i].power)); 1174 1175 if (!(state.device[i].power & HPWMI_POWER_BIOS)) 1176 pr_info("device %s blocked by BIOS\n", name); 1177 1178 err = rfkill_register(rfkill); 1179 if (err) { 1180 rfkill_destroy(rfkill); 1181 goto fail; 1182 } 1183 1184 rfkill2_count++; 1185 } 1186 1187 return 0; 1188 fail: 1189 for (; rfkill2_count > 0; rfkill2_count--) { 1190 rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); 1191 rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); 1192 } 1193 return err; 1194 } 1195 1196 static int platform_profile_omen_get_ec(enum platform_profile_option *profile) 1197 { 1198 int tp; 1199 1200 tp = omen_thermal_profile_get(); 1201 if (tp < 0) 1202 return tp; 1203 1204 switch (tp) { 1205 case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE: 1206 case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE: 1207 *profile = PLATFORM_PROFILE_PERFORMANCE; 1208 break; 1209 case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT: 1210 case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT: 1211 *profile = PLATFORM_PROFILE_BALANCED; 1212 break; 1213 case HP_OMEN_V0_THERMAL_PROFILE_COOL: 1214 case HP_OMEN_V1_THERMAL_PROFILE_COOL: 1215 *profile = PLATFORM_PROFILE_COOL; 1216 break; 1217 default: 1218 return -EINVAL; 1219 } 1220 1221 return 0; 1222 } 1223 1224 static int platform_profile_omen_get(struct platform_profile_handler *pprof, 1225 enum platform_profile_option *profile) 1226 { 1227 /* 1228 * We directly return the stored platform profile, as the embedded 1229 * controller will not accept switching to the performance option when 1230 * the conditions are not met (e.g. the laptop is not plugged in). 1231 * 1232 * If we directly return what the EC reports, the platform profile will 1233 * immediately "switch back" to normal mode, which is against the 1234 * expected behaviour from a userspace point of view, as described in 1235 * the Platform Profile Section page of the kernel documentation. 1236 * 1237 * See also omen_powersource_event. 1238 */ 1239 guard(mutex)(&active_platform_profile_lock); 1240 *profile = active_platform_profile; 1241 1242 return 0; 1243 } 1244 1245 static bool has_omen_thermal_profile_ec_timer(void) 1246 { 1247 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 1248 1249 if (!board_name) 1250 return false; 1251 1252 return match_string(omen_timed_thermal_profile_boards, 1253 ARRAY_SIZE(omen_timed_thermal_profile_boards), 1254 board_name) >= 0; 1255 } 1256 1257 inline int omen_thermal_profile_ec_flags_set(enum hp_thermal_profile_omen_flags flags) 1258 { 1259 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_FLAGS_OFFSET, flags); 1260 } 1261 1262 inline int omen_thermal_profile_ec_timer_set(u8 value) 1263 { 1264 return ec_write(HP_OMEN_EC_THERMAL_PROFILE_TIMER_OFFSET, value); 1265 } 1266 1267 static int platform_profile_omen_set_ec(enum platform_profile_option profile) 1268 { 1269 int err, tp, tp_version; 1270 enum hp_thermal_profile_omen_flags flags = 0; 1271 1272 tp_version = omen_get_thermal_policy_version(); 1273 1274 if (tp_version < 0 || tp_version > 1) 1275 return -EOPNOTSUPP; 1276 1277 switch (profile) { 1278 case PLATFORM_PROFILE_PERFORMANCE: 1279 if (tp_version == 0) 1280 tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE; 1281 else 1282 tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE; 1283 break; 1284 case PLATFORM_PROFILE_BALANCED: 1285 if (tp_version == 0) 1286 tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT; 1287 else 1288 tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT; 1289 break; 1290 case PLATFORM_PROFILE_COOL: 1291 if (tp_version == 0) 1292 tp = HP_OMEN_V0_THERMAL_PROFILE_COOL; 1293 else 1294 tp = HP_OMEN_V1_THERMAL_PROFILE_COOL; 1295 break; 1296 default: 1297 return -EOPNOTSUPP; 1298 } 1299 1300 err = omen_thermal_profile_set(tp); 1301 if (err < 0) 1302 return err; 1303 1304 if (has_omen_thermal_profile_ec_timer()) { 1305 err = omen_thermal_profile_ec_timer_set(0); 1306 if (err < 0) 1307 return err; 1308 1309 if (profile == PLATFORM_PROFILE_PERFORMANCE) 1310 flags = HP_OMEN_EC_FLAGS_NOTIMER | 1311 HP_OMEN_EC_FLAGS_TURBO; 1312 1313 err = omen_thermal_profile_ec_flags_set(flags); 1314 if (err < 0) 1315 return err; 1316 } 1317 1318 return 0; 1319 } 1320 1321 static int platform_profile_omen_set(struct platform_profile_handler *pprof, 1322 enum platform_profile_option profile) 1323 { 1324 int err; 1325 1326 guard(mutex)(&active_platform_profile_lock); 1327 1328 err = platform_profile_omen_set_ec(profile); 1329 if (err < 0) 1330 return err; 1331 1332 active_platform_profile = profile; 1333 1334 return 0; 1335 } 1336 1337 static int thermal_profile_get(void) 1338 { 1339 return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY); 1340 } 1341 1342 static int thermal_profile_set(int thermal_profile) 1343 { 1344 return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile, 1345 sizeof(thermal_profile), 0); 1346 } 1347 1348 static int hp_wmi_platform_profile_get(struct platform_profile_handler *pprof, 1349 enum platform_profile_option *profile) 1350 { 1351 int tp; 1352 1353 tp = thermal_profile_get(); 1354 if (tp < 0) 1355 return tp; 1356 1357 switch (tp) { 1358 case HP_THERMAL_PROFILE_PERFORMANCE: 1359 *profile = PLATFORM_PROFILE_PERFORMANCE; 1360 break; 1361 case HP_THERMAL_PROFILE_DEFAULT: 1362 *profile = PLATFORM_PROFILE_BALANCED; 1363 break; 1364 case HP_THERMAL_PROFILE_COOL: 1365 *profile = PLATFORM_PROFILE_COOL; 1366 break; 1367 case HP_THERMAL_PROFILE_QUIET: 1368 *profile = PLATFORM_PROFILE_QUIET; 1369 break; 1370 default: 1371 return -EINVAL; 1372 } 1373 1374 return 0; 1375 } 1376 1377 static int hp_wmi_platform_profile_set(struct platform_profile_handler *pprof, 1378 enum platform_profile_option profile) 1379 { 1380 int err, tp; 1381 1382 switch (profile) { 1383 case PLATFORM_PROFILE_PERFORMANCE: 1384 tp = HP_THERMAL_PROFILE_PERFORMANCE; 1385 break; 1386 case PLATFORM_PROFILE_BALANCED: 1387 tp = HP_THERMAL_PROFILE_DEFAULT; 1388 break; 1389 case PLATFORM_PROFILE_COOL: 1390 tp = HP_THERMAL_PROFILE_COOL; 1391 break; 1392 case PLATFORM_PROFILE_QUIET: 1393 tp = HP_THERMAL_PROFILE_QUIET; 1394 break; 1395 default: 1396 return -EOPNOTSUPP; 1397 } 1398 1399 err = thermal_profile_set(tp); 1400 if (err) 1401 return err; 1402 1403 return 0; 1404 } 1405 1406 static bool is_victus_thermal_profile(void) 1407 { 1408 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); 1409 1410 if (!board_name) 1411 return false; 1412 1413 return match_string(victus_thermal_profile_boards, 1414 ARRAY_SIZE(victus_thermal_profile_boards), 1415 board_name) >= 0; 1416 } 1417 1418 static int platform_profile_victus_get_ec(enum platform_profile_option *profile) 1419 { 1420 int tp; 1421 1422 tp = omen_thermal_profile_get(); 1423 if (tp < 0) 1424 return tp; 1425 1426 switch (tp) { 1427 case HP_VICTUS_THERMAL_PROFILE_PERFORMANCE: 1428 *profile = PLATFORM_PROFILE_PERFORMANCE; 1429 break; 1430 case HP_VICTUS_THERMAL_PROFILE_DEFAULT: 1431 *profile = PLATFORM_PROFILE_BALANCED; 1432 break; 1433 case HP_VICTUS_THERMAL_PROFILE_QUIET: 1434 *profile = PLATFORM_PROFILE_QUIET; 1435 break; 1436 default: 1437 return -EOPNOTSUPP; 1438 } 1439 1440 return 0; 1441 } 1442 1443 static int platform_profile_victus_get(struct platform_profile_handler *pprof, 1444 enum platform_profile_option *profile) 1445 { 1446 /* Same behaviour as platform_profile_omen_get */ 1447 return platform_profile_omen_get(pprof, profile); 1448 } 1449 1450 static int platform_profile_victus_set_ec(enum platform_profile_option profile) 1451 { 1452 int err, tp; 1453 1454 switch (profile) { 1455 case PLATFORM_PROFILE_PERFORMANCE: 1456 tp = HP_VICTUS_THERMAL_PROFILE_PERFORMANCE; 1457 break; 1458 case PLATFORM_PROFILE_BALANCED: 1459 tp = HP_VICTUS_THERMAL_PROFILE_DEFAULT; 1460 break; 1461 case PLATFORM_PROFILE_QUIET: 1462 tp = HP_VICTUS_THERMAL_PROFILE_QUIET; 1463 break; 1464 default: 1465 return -EOPNOTSUPP; 1466 } 1467 1468 err = omen_thermal_profile_set(tp); 1469 if (err < 0) 1470 return err; 1471 1472 return 0; 1473 } 1474 1475 static int platform_profile_victus_set(struct platform_profile_handler *pprof, 1476 enum platform_profile_option profile) 1477 { 1478 int err; 1479 1480 guard(mutex)(&active_platform_profile_lock); 1481 1482 err = platform_profile_victus_set_ec(profile); 1483 if (err < 0) 1484 return err; 1485 1486 active_platform_profile = profile; 1487 1488 return 0; 1489 } 1490 1491 static int omen_powersource_event(struct notifier_block *nb, 1492 unsigned long value, 1493 void *data) 1494 { 1495 struct acpi_bus_event *event_entry = data; 1496 enum platform_profile_option actual_profile; 1497 int err; 1498 1499 if (strcmp(event_entry->device_class, ACPI_AC_CLASS) != 0) 1500 return NOTIFY_DONE; 1501 1502 pr_debug("Received power source device event\n"); 1503 1504 guard(mutex)(&active_platform_profile_lock); 1505 1506 /* 1507 * This handler can only be called on Omen and Victus models, so 1508 * there's no need to call is_victus_thermal_profile() here. 1509 */ 1510 if (is_omen_thermal_profile()) 1511 err = platform_profile_omen_get_ec(&actual_profile); 1512 else 1513 err = platform_profile_victus_get_ec(&actual_profile); 1514 1515 if (err < 0) { 1516 /* 1517 * Although we failed to get the current platform profile, we 1518 * still want the other event consumers to process it. 1519 */ 1520 pr_warn("Failed to read current platform profile (%d)\n", err); 1521 return NOTIFY_DONE; 1522 } 1523 1524 /* 1525 * If we're back on AC and that the user-chosen power profile is 1526 * different from what the EC reports, we restore the user-chosen 1527 * one. 1528 */ 1529 if (power_supply_is_system_supplied() <= 0 || 1530 active_platform_profile == actual_profile) { 1531 pr_debug("Platform profile update skipped, conditions unmet\n"); 1532 return NOTIFY_DONE; 1533 } 1534 1535 if (is_omen_thermal_profile()) 1536 err = platform_profile_omen_set_ec(active_platform_profile); 1537 else 1538 err = platform_profile_victus_set_ec(active_platform_profile); 1539 1540 if (err < 0) { 1541 pr_warn("Failed to restore platform profile (%d)\n", err); 1542 return NOTIFY_DONE; 1543 } 1544 1545 return NOTIFY_OK; 1546 } 1547 1548 static int omen_register_powersource_event_handler(void) 1549 { 1550 int err; 1551 1552 platform_power_source_nb.notifier_call = omen_powersource_event; 1553 err = register_acpi_notifier(&platform_power_source_nb); 1554 1555 if (err < 0) { 1556 pr_warn("Failed to install ACPI power source notify handler\n"); 1557 return err; 1558 } 1559 1560 return 0; 1561 } 1562 1563 static inline void omen_unregister_powersource_event_handler(void) 1564 { 1565 unregister_acpi_notifier(&platform_power_source_nb); 1566 } 1567 1568 static int thermal_profile_setup(void) 1569 { 1570 int err, tp; 1571 1572 if (is_omen_thermal_profile()) { 1573 err = platform_profile_omen_get_ec(&active_platform_profile); 1574 if (err < 0) 1575 return err; 1576 1577 /* 1578 * call thermal profile write command to ensure that the 1579 * firmware correctly sets the OEM variables 1580 */ 1581 err = platform_profile_omen_set_ec(active_platform_profile); 1582 if (err < 0) 1583 return err; 1584 1585 platform_profile_handler.profile_get = platform_profile_omen_get; 1586 platform_profile_handler.profile_set = platform_profile_omen_set; 1587 1588 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); 1589 } else if (is_victus_thermal_profile()) { 1590 err = platform_profile_victus_get_ec(&active_platform_profile); 1591 if (err < 0) 1592 return err; 1593 1594 /* 1595 * call thermal profile write command to ensure that the 1596 * firmware correctly sets the OEM variables 1597 */ 1598 err = platform_profile_victus_set_ec(active_platform_profile); 1599 if (err < 0) 1600 return err; 1601 1602 platform_profile_handler.profile_get = platform_profile_victus_get; 1603 platform_profile_handler.profile_set = platform_profile_victus_set; 1604 1605 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices); 1606 } else { 1607 tp = thermal_profile_get(); 1608 1609 if (tp < 0) 1610 return tp; 1611 1612 /* 1613 * call thermal profile write command to ensure that the 1614 * firmware correctly sets the OEM variables for the DPTF 1615 */ 1616 err = thermal_profile_set(tp); 1617 if (err) 1618 return err; 1619 1620 platform_profile_handler.profile_get = hp_wmi_platform_profile_get; 1621 platform_profile_handler.profile_set = hp_wmi_platform_profile_set; 1622 1623 set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices); 1624 set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); 1625 } 1626 1627 set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices); 1628 set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices); 1629 1630 err = platform_profile_register(&platform_profile_handler); 1631 if (err) 1632 return err; 1633 1634 platform_profile_support = true; 1635 1636 return 0; 1637 } 1638 1639 static int hp_wmi_hwmon_init(void); 1640 1641 static int __init hp_wmi_bios_setup(struct platform_device *device) 1642 { 1643 int err; 1644 /* clear detected rfkill devices */ 1645 wifi_rfkill = NULL; 1646 bluetooth_rfkill = NULL; 1647 wwan_rfkill = NULL; 1648 rfkill2_count = 0; 1649 1650 /* 1651 * In pre-2009 BIOS, command 1Bh return 0x4 to indicate that 1652 * BIOS no longer controls the power for the wireless 1653 * devices. All features supported by this command will no 1654 * longer be supported. 1655 */ 1656 if (!hp_wmi_bios_2009_later()) { 1657 if (hp_wmi_rfkill_setup(device)) 1658 hp_wmi_rfkill2_setup(device); 1659 } 1660 1661 err = hp_wmi_hwmon_init(); 1662 1663 if (err < 0) 1664 return err; 1665 1666 thermal_profile_setup(); 1667 1668 return 0; 1669 } 1670 1671 static void __exit hp_wmi_bios_remove(struct platform_device *device) 1672 { 1673 int i; 1674 1675 for (i = 0; i < rfkill2_count; i++) { 1676 rfkill_unregister(rfkill2[i].rfkill); 1677 rfkill_destroy(rfkill2[i].rfkill); 1678 } 1679 1680 if (wifi_rfkill) { 1681 rfkill_unregister(wifi_rfkill); 1682 rfkill_destroy(wifi_rfkill); 1683 } 1684 if (bluetooth_rfkill) { 1685 rfkill_unregister(bluetooth_rfkill); 1686 rfkill_destroy(bluetooth_rfkill); 1687 } 1688 if (wwan_rfkill) { 1689 rfkill_unregister(wwan_rfkill); 1690 rfkill_destroy(wwan_rfkill); 1691 } 1692 1693 if (platform_profile_support) 1694 platform_profile_remove(); 1695 } 1696 1697 static int hp_wmi_resume_handler(struct device *device) 1698 { 1699 /* 1700 * Hardware state may have changed while suspended, so trigger 1701 * input events for the current state. As this is a switch, 1702 * the input layer will only actually pass it on if the state 1703 * changed. 1704 */ 1705 if (hp_wmi_input_dev) { 1706 if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) 1707 input_report_switch(hp_wmi_input_dev, SW_DOCK, 1708 hp_wmi_get_dock_state()); 1709 if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) 1710 input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, 1711 hp_wmi_get_tablet_mode()); 1712 input_sync(hp_wmi_input_dev); 1713 } 1714 1715 if (rfkill2_count) 1716 hp_wmi_rfkill2_refresh(); 1717 1718 if (wifi_rfkill) 1719 rfkill_set_states(wifi_rfkill, 1720 hp_wmi_get_sw_state(HPWMI_WIFI), 1721 hp_wmi_get_hw_state(HPWMI_WIFI)); 1722 if (bluetooth_rfkill) 1723 rfkill_set_states(bluetooth_rfkill, 1724 hp_wmi_get_sw_state(HPWMI_BLUETOOTH), 1725 hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); 1726 if (wwan_rfkill) 1727 rfkill_set_states(wwan_rfkill, 1728 hp_wmi_get_sw_state(HPWMI_WWAN), 1729 hp_wmi_get_hw_state(HPWMI_WWAN)); 1730 1731 return 0; 1732 } 1733 1734 static const struct dev_pm_ops hp_wmi_pm_ops = { 1735 .resume = hp_wmi_resume_handler, 1736 .restore = hp_wmi_resume_handler, 1737 }; 1738 1739 /* 1740 * hp_wmi_bios_remove() lives in .exit.text. For drivers registered via 1741 * module_platform_driver_probe() this is ok because they cannot get unbound at 1742 * runtime. So mark the driver struct with __refdata to prevent modpost 1743 * triggering a section mismatch warning. 1744 */ 1745 static struct platform_driver hp_wmi_driver __refdata = { 1746 .driver = { 1747 .name = "hp-wmi", 1748 .pm = &hp_wmi_pm_ops, 1749 .dev_groups = hp_wmi_groups, 1750 }, 1751 .remove_new = __exit_p(hp_wmi_bios_remove), 1752 }; 1753 1754 static umode_t hp_wmi_hwmon_is_visible(const void *data, 1755 enum hwmon_sensor_types type, 1756 u32 attr, int channel) 1757 { 1758 switch (type) { 1759 case hwmon_pwm: 1760 return 0644; 1761 case hwmon_fan: 1762 if (hp_wmi_get_fan_speed(channel) >= 0) 1763 return 0444; 1764 break; 1765 default: 1766 return 0; 1767 } 1768 1769 return 0; 1770 } 1771 1772 static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type, 1773 u32 attr, int channel, long *val) 1774 { 1775 int ret; 1776 1777 switch (type) { 1778 case hwmon_fan: 1779 ret = hp_wmi_get_fan_speed(channel); 1780 1781 if (ret < 0) 1782 return ret; 1783 *val = ret; 1784 return 0; 1785 case hwmon_pwm: 1786 switch (hp_wmi_fan_speed_max_get()) { 1787 case 0: 1788 /* 0 is automatic fan, which is 2 for hwmon */ 1789 *val = 2; 1790 return 0; 1791 case 1: 1792 /* 1 is max fan, which is 0 1793 * (no fan speed control) for hwmon 1794 */ 1795 *val = 0; 1796 return 0; 1797 default: 1798 /* shouldn't happen */ 1799 return -ENODATA; 1800 } 1801 default: 1802 return -EINVAL; 1803 } 1804 } 1805 1806 static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type, 1807 u32 attr, int channel, long val) 1808 { 1809 switch (type) { 1810 case hwmon_pwm: 1811 switch (val) { 1812 case 0: 1813 /* 0 is no fan speed control (max), which is 1 for us */ 1814 return hp_wmi_fan_speed_max_set(1); 1815 case 2: 1816 /* 2 is automatic speed control, which is 0 for us */ 1817 return hp_wmi_fan_speed_max_set(0); 1818 default: 1819 /* we don't support manual fan speed control */ 1820 return -EINVAL; 1821 } 1822 default: 1823 return -EOPNOTSUPP; 1824 } 1825 } 1826 1827 static const struct hwmon_channel_info * const info[] = { 1828 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT), 1829 HWMON_CHANNEL_INFO(pwm, HWMON_PWM_ENABLE), 1830 NULL 1831 }; 1832 1833 static const struct hwmon_ops ops = { 1834 .is_visible = hp_wmi_hwmon_is_visible, 1835 .read = hp_wmi_hwmon_read, 1836 .write = hp_wmi_hwmon_write, 1837 }; 1838 1839 static const struct hwmon_chip_info chip_info = { 1840 .ops = &ops, 1841 .info = info, 1842 }; 1843 1844 static int hp_wmi_hwmon_init(void) 1845 { 1846 struct device *dev = &hp_wmi_platform_dev->dev; 1847 struct device *hwmon; 1848 1849 hwmon = devm_hwmon_device_register_with_info(dev, "hp", &hp_wmi_driver, 1850 &chip_info, NULL); 1851 1852 if (IS_ERR(hwmon)) { 1853 dev_err(dev, "Could not register hp hwmon device\n"); 1854 return PTR_ERR(hwmon); 1855 } 1856 1857 return 0; 1858 } 1859 1860 static int __init hp_wmi_init(void) 1861 { 1862 int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); 1863 int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); 1864 int err, tmp = 0; 1865 1866 if (!bios_capable && !event_capable) 1867 return -ENODEV; 1868 1869 if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp, 1870 sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS) 1871 zero_insize_support = true; 1872 1873 if (event_capable) { 1874 err = hp_wmi_input_setup(); 1875 if (err) 1876 return err; 1877 } 1878 1879 if (bios_capable) { 1880 hp_wmi_platform_dev = 1881 platform_device_register_simple("hp-wmi", PLATFORM_DEVID_NONE, NULL, 0); 1882 if (IS_ERR(hp_wmi_platform_dev)) { 1883 err = PTR_ERR(hp_wmi_platform_dev); 1884 goto err_destroy_input; 1885 } 1886 1887 err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); 1888 if (err) 1889 goto err_unregister_device; 1890 } 1891 1892 if (is_omen_thermal_profile() || is_victus_thermal_profile()) { 1893 err = omen_register_powersource_event_handler(); 1894 if (err) 1895 goto err_unregister_device; 1896 } 1897 1898 return 0; 1899 1900 err_unregister_device: 1901 platform_device_unregister(hp_wmi_platform_dev); 1902 err_destroy_input: 1903 if (event_capable) 1904 hp_wmi_input_destroy(); 1905 1906 return err; 1907 } 1908 module_init(hp_wmi_init); 1909 1910 static void __exit hp_wmi_exit(void) 1911 { 1912 if (is_omen_thermal_profile() || is_victus_thermal_profile()) 1913 omen_unregister_powersource_event_handler(); 1914 1915 if (wmi_has_guid(HPWMI_EVENT_GUID)) 1916 hp_wmi_input_destroy(); 1917 1918 if (camera_shutter_input_dev) 1919 input_unregister_device(camera_shutter_input_dev); 1920 1921 if (hp_wmi_platform_dev) { 1922 platform_device_unregister(hp_wmi_platform_dev); 1923 platform_driver_unregister(&hp_wmi_driver); 1924 } 1925 } 1926 module_exit(hp_wmi_exit); 1927