1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Asus PC WMI hotkey driver 4 * 5 * Copyright(C) 2010 Intel Corporation. 6 * Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com> 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/acpi.h> 17 #include <linux/backlight.h> 18 #include <linux/debugfs.h> 19 #include <linux/delay.h> 20 #include <linux/dmi.h> 21 #include <linux/hwmon.h> 22 #include <linux/hwmon-sysfs.h> 23 #include <linux/init.h> 24 #include <linux/input.h> 25 #include <linux/input/sparse-keymap.h> 26 #include <linux/kernel.h> 27 #include <linux/leds.h> 28 #include <linux/minmax.h> 29 #include <linux/module.h> 30 #include <linux/pci.h> 31 #include <linux/pci_hotplug.h> 32 #include <linux/platform_data/x86/asus-wmi.h> 33 #include <linux/platform_device.h> 34 #include <linux/platform_profile.h> 35 #include <linux/power_supply.h> 36 #include <linux/rfkill.h> 37 #include <linux/seq_file.h> 38 #include <linux/slab.h> 39 #include <linux/types.h> 40 #include <linux/units.h> 41 42 #include <acpi/battery.h> 43 #include <acpi/video.h> 44 45 #include "asus-wmi.h" 46 47 MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>"); 48 MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>"); 49 MODULE_DESCRIPTION("Asus Generic WMI Driver"); 50 MODULE_LICENSE("GPL"); 51 52 static bool fnlock_default = true; 53 module_param(fnlock_default, bool, 0444); 54 55 #define to_asus_wmi_driver(pdrv) \ 56 (container_of((pdrv), struct asus_wmi_driver, platform_driver)) 57 58 #define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" 59 60 #define NOTIFY_BRNUP_MIN 0x11 61 #define NOTIFY_BRNUP_MAX 0x1f 62 #define NOTIFY_BRNDOWN_MIN 0x20 63 #define NOTIFY_BRNDOWN_MAX 0x2e 64 #define NOTIFY_FNLOCK_TOGGLE 0x4e 65 #define NOTIFY_KBD_DOCK_CHANGE 0x75 66 #define NOTIFY_KBD_BRTUP 0xc4 67 #define NOTIFY_KBD_BRTDWN 0xc5 68 #define NOTIFY_KBD_BRTTOGGLE 0xc7 69 #define NOTIFY_KBD_FBM 0x99 70 #define NOTIFY_KBD_TTP 0xae 71 #define NOTIFY_LID_FLIP 0xfa 72 #define NOTIFY_LID_FLIP_ROG 0xbd 73 74 #define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0) 75 76 #define ASUS_MID_FAN_DESC "mid_fan" 77 #define ASUS_GPU_FAN_DESC "gpu_fan" 78 #define ASUS_FAN_DESC "cpu_fan" 79 #define ASUS_FAN_MFUN 0x13 80 #define ASUS_FAN_SFUN_READ 0x06 81 #define ASUS_FAN_SFUN_WRITE 0x07 82 83 /* Based on standard hwmon pwmX_enable values */ 84 #define ASUS_FAN_CTRL_FULLSPEED 0 85 #define ASUS_FAN_CTRL_MANUAL 1 86 #define ASUS_FAN_CTRL_AUTO 2 87 88 #define ASUS_FAN_BOOST_MODE_NORMAL 0 89 #define ASUS_FAN_BOOST_MODE_OVERBOOST 1 90 #define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01 91 #define ASUS_FAN_BOOST_MODE_SILENT 2 92 #define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02 93 #define ASUS_FAN_BOOST_MODES_MASK 0x03 94 95 #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0 96 #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1 97 #define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2 98 99 #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO 0 100 #define ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO 1 101 #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO 2 102 103 #define PLATFORM_PROFILE_MAX 2 104 105 #define USB_INTEL_XUSB2PR 0xD0 106 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 107 108 #define ASUS_ACPI_UID_ASUSWMI "ASUSWMI" 109 110 #define WMI_EVENT_MASK 0xFFFF 111 112 #define FAN_CURVE_POINTS 8 113 #define FAN_CURVE_BUF_LEN 32 114 #define FAN_CURVE_DEV_CPU 0x00 115 #define FAN_CURVE_DEV_GPU 0x01 116 #define FAN_CURVE_DEV_MID 0x02 117 /* Mask to determine if setting temperature or percentage */ 118 #define FAN_CURVE_PWM_MASK 0x04 119 120 /* Limits for tunables available on ASUS ROG laptops */ 121 #define PPT_TOTAL_MIN 5 122 #define PPT_TOTAL_MAX 250 123 #define PPT_CPU_MIN 5 124 #define PPT_CPU_MAX 130 125 #define NVIDIA_BOOST_MIN 5 126 #define NVIDIA_BOOST_MAX 25 127 #define NVIDIA_TEMP_MIN 75 128 #define NVIDIA_TEMP_MAX 87 129 130 #define ASUS_SCREENPAD_BRIGHT_MIN 20 131 #define ASUS_SCREENPAD_BRIGHT_MAX 255 132 #define ASUS_SCREENPAD_BRIGHT_DEFAULT 60 133 134 #define ASUS_MINI_LED_MODE_MASK 0x03 135 /* Standard modes for devices with only on/off */ 136 #define ASUS_MINI_LED_OFF 0x00 137 #define ASUS_MINI_LED_ON 0x01 138 /* New mode on some devices, define here to clarify remapping later */ 139 #define ASUS_MINI_LED_STRONG_MODE 0x02 140 /* New modes for devices with 3 mini-led mode types */ 141 #define ASUS_MINI_LED_2024_WEAK 0x00 142 #define ASUS_MINI_LED_2024_STRONG 0x01 143 #define ASUS_MINI_LED_2024_OFF 0x02 144 145 /* Controls the power state of the USB0 hub on ROG Ally which input is on */ 146 #define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE" 147 /* 300ms so far seems to produce a reliable result on AC and battery */ 148 #define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500 149 150 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL }; 151 152 static int throttle_thermal_policy_write(struct asus_wmi *); 153 154 static const struct dmi_system_id asus_ally_mcu_quirk[] = { 155 { 156 .matches = { 157 DMI_MATCH(DMI_BOARD_NAME, "RC71L"), 158 }, 159 }, 160 { 161 .matches = { 162 DMI_MATCH(DMI_BOARD_NAME, "RC72L"), 163 }, 164 }, 165 { }, 166 }; 167 168 static bool ashs_present(void) 169 { 170 int i = 0; 171 while (ashs_ids[i]) { 172 if (acpi_dev_found(ashs_ids[i++])) 173 return true; 174 } 175 return false; 176 } 177 178 struct bios_args { 179 u32 arg0; 180 u32 arg1; 181 u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */ 182 u32 arg3; 183 u32 arg4; /* Some ROG laptops require a full 5 input args */ 184 u32 arg5; 185 } __packed; 186 187 /* 188 * Struct that's used for all methods called via AGFN. Naming is 189 * identically to the AML code. 190 */ 191 struct agfn_args { 192 u16 mfun; /* probably "Multi-function" to be called */ 193 u16 sfun; /* probably "Sub-function" to be called */ 194 u16 len; /* size of the hole struct, including subfunction fields */ 195 u8 stas; /* not used by now */ 196 u8 err; /* zero on success */ 197 } __packed; 198 199 /* struct used for calling fan read and write methods */ 200 struct agfn_fan_args { 201 struct agfn_args agfn; /* common fields */ 202 u8 fan; /* fan number: 0: set auto mode 1: 1st fan */ 203 u32 speed; /* read: RPM/100 - write: 0-255 */ 204 } __packed; 205 206 /* 207 * <platform>/ - debugfs root directory 208 * dev_id - current dev_id 209 * ctrl_param - current ctrl_param 210 * method_id - current method_id 211 * devs - call DEVS(dev_id, ctrl_param) and print result 212 * dsts - call DSTS(dev_id) and print result 213 * call - call method_id(dev_id, ctrl_param) and print result 214 */ 215 struct asus_wmi_debug { 216 struct dentry *root; 217 u32 method_id; 218 u32 dev_id; 219 u32 ctrl_param; 220 }; 221 222 struct asus_rfkill { 223 struct asus_wmi *asus; 224 struct rfkill *rfkill; 225 u32 dev_id; 226 }; 227 228 enum fan_type { 229 FAN_TYPE_NONE = 0, 230 FAN_TYPE_AGFN, /* deprecated on newer platforms */ 231 FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */ 232 }; 233 234 struct fan_curve_data { 235 bool enabled; 236 u32 device_id; 237 u8 temps[FAN_CURVE_POINTS]; 238 u8 percents[FAN_CURVE_POINTS]; 239 }; 240 241 struct asus_wmi { 242 int dsts_id; 243 int spec; 244 int sfun; 245 246 struct input_dev *inputdev; 247 struct backlight_device *backlight_device; 248 struct backlight_device *screenpad_backlight_device; 249 struct platform_device *platform_device; 250 251 struct led_classdev wlan_led; 252 int wlan_led_wk; 253 struct led_classdev tpd_led; 254 int tpd_led_wk; 255 struct led_classdev kbd_led; 256 int kbd_led_wk; 257 struct led_classdev lightbar_led; 258 int lightbar_led_wk; 259 struct led_classdev micmute_led; 260 struct led_classdev camera_led; 261 struct workqueue_struct *led_workqueue; 262 struct work_struct tpd_led_work; 263 struct work_struct wlan_led_work; 264 struct work_struct lightbar_led_work; 265 266 struct asus_rfkill wlan; 267 struct asus_rfkill bluetooth; 268 struct asus_rfkill wimax; 269 struct asus_rfkill wwan3g; 270 struct asus_rfkill gps; 271 struct asus_rfkill uwb; 272 273 int tablet_switch_event_code; 274 u32 tablet_switch_dev_id; 275 bool tablet_switch_inverted; 276 277 /* The ROG Ally device requires the MCU USB device be disconnected before suspend */ 278 bool ally_mcu_usb_switch; 279 280 enum fan_type fan_type; 281 enum fan_type gpu_fan_type; 282 enum fan_type mid_fan_type; 283 int fan_pwm_mode; 284 int gpu_fan_pwm_mode; 285 int mid_fan_pwm_mode; 286 int agfn_pwm; 287 288 bool fan_boost_mode_available; 289 u8 fan_boost_mode_mask; 290 u8 fan_boost_mode; 291 292 bool egpu_enable_available; 293 bool dgpu_disable_available; 294 u32 gpu_mux_dev; 295 296 /* Tunables provided by ASUS for gaming laptops */ 297 u32 ppt_pl2_sppt; 298 u32 ppt_pl1_spl; 299 u32 ppt_apu_sppt; 300 u32 ppt_platform_sppt; 301 u32 ppt_fppt; 302 u32 nv_dynamic_boost; 303 u32 nv_temp_target; 304 305 u32 kbd_rgb_dev; 306 bool kbd_rgb_state_available; 307 308 u8 throttle_thermal_policy_mode; 309 u32 throttle_thermal_policy_dev; 310 311 bool cpu_fan_curve_available; 312 bool gpu_fan_curve_available; 313 bool mid_fan_curve_available; 314 struct fan_curve_data custom_fan_curves[3]; 315 316 struct platform_profile_handler platform_profile_handler; 317 bool platform_profile_support; 318 319 // The RSOC controls the maximum charging percentage. 320 bool battery_rsoc_available; 321 322 bool panel_overdrive_available; 323 u32 mini_led_dev_id; 324 325 struct hotplug_slot hotplug_slot; 326 struct mutex hotplug_lock; 327 struct mutex wmi_lock; 328 struct workqueue_struct *hotplug_workqueue; 329 struct work_struct hotplug_work; 330 331 bool fnlock_locked; 332 333 struct asus_wmi_debug debug; 334 335 struct asus_wmi_driver *driver; 336 }; 337 338 /* WMI ************************************************************************/ 339 340 static int asus_wmi_evaluate_method3(u32 method_id, 341 u32 arg0, u32 arg1, u32 arg2, u32 *retval) 342 { 343 struct bios_args args = { 344 .arg0 = arg0, 345 .arg1 = arg1, 346 .arg2 = arg2, 347 }; 348 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 349 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 350 acpi_status status; 351 union acpi_object *obj; 352 u32 tmp = 0; 353 354 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id, 355 &input, &output); 356 357 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x\n", 358 __func__, method_id, arg0, arg1, arg2); 359 if (ACPI_FAILURE(status)) { 360 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 361 __func__, method_id, arg0, -EIO); 362 return -EIO; 363 } 364 365 obj = (union acpi_object *)output.pointer; 366 if (obj && obj->type == ACPI_TYPE_INTEGER) 367 tmp = (u32) obj->integer.value; 368 369 pr_debug("Result: 0x%08x\n", tmp); 370 if (retval) 371 *retval = tmp; 372 373 kfree(obj); 374 375 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) { 376 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 377 __func__, method_id, arg0, -ENODEV); 378 return -ENODEV; 379 } 380 381 return 0; 382 } 383 384 int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval) 385 { 386 return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval); 387 } 388 EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method); 389 390 static int asus_wmi_evaluate_method5(u32 method_id, 391 u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval) 392 { 393 struct bios_args args = { 394 .arg0 = arg0, 395 .arg1 = arg1, 396 .arg2 = arg2, 397 .arg3 = arg3, 398 .arg4 = arg4, 399 }; 400 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 401 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 402 acpi_status status; 403 union acpi_object *obj; 404 u32 tmp = 0; 405 406 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id, 407 &input, &output); 408 409 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x\n", 410 __func__, method_id, arg0, arg1, arg2, arg3, arg4); 411 if (ACPI_FAILURE(status)) { 412 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 413 __func__, method_id, arg0, -EIO); 414 return -EIO; 415 } 416 417 obj = (union acpi_object *)output.pointer; 418 if (obj && obj->type == ACPI_TYPE_INTEGER) 419 tmp = (u32) obj->integer.value; 420 421 pr_debug("Result: %x\n", tmp); 422 if (retval) 423 *retval = tmp; 424 425 kfree(obj); 426 427 if (tmp == ASUS_WMI_UNSUPPORTED_METHOD) { 428 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 429 __func__, method_id, arg0, -ENODEV); 430 return -ENODEV; 431 } 432 433 return 0; 434 } 435 436 /* 437 * Returns as an error if the method output is not a buffer. Typically this 438 * means that the method called is unsupported. 439 */ 440 static int asus_wmi_evaluate_method_buf(u32 method_id, 441 u32 arg0, u32 arg1, u8 *ret_buffer, size_t size) 442 { 443 struct bios_args args = { 444 .arg0 = arg0, 445 .arg1 = arg1, 446 .arg2 = 0, 447 }; 448 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 449 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 450 acpi_status status; 451 union acpi_object *obj; 452 int err = 0; 453 454 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id, 455 &input, &output); 456 457 pr_debug("%s called (0x%08x) with args: 0x%08x, 0x%08x\n", 458 __func__, method_id, arg0, arg1); 459 if (ACPI_FAILURE(status)) { 460 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 461 __func__, method_id, arg0, -EIO); 462 return -EIO; 463 } 464 465 obj = (union acpi_object *)output.pointer; 466 467 switch (obj->type) { 468 case ACPI_TYPE_BUFFER: 469 if (obj->buffer.length > size) { 470 err = -ENOSPC; 471 break; 472 } 473 if (obj->buffer.length == 0) { 474 err = -ENODATA; 475 break; 476 } 477 478 memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length); 479 break; 480 case ACPI_TYPE_INTEGER: 481 err = (u32)obj->integer.value; 482 483 if (err == ASUS_WMI_UNSUPPORTED_METHOD) 484 err = -ENODEV; 485 /* 486 * At least one method returns a 0 with no buffer if no arg 487 * is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE 488 */ 489 if (err == 0) 490 err = -ENODATA; 491 break; 492 default: 493 err = -ENODATA; 494 break; 495 } 496 497 kfree(obj); 498 499 if (err) { 500 pr_debug("%s, (0x%08x), arg 0x%08x failed: %d\n", 501 __func__, method_id, arg0, err); 502 return err; 503 } 504 505 return 0; 506 } 507 508 static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args) 509 { 510 struct acpi_buffer input; 511 u64 phys_addr; 512 u32 retval; 513 u32 status; 514 515 /* 516 * Copy to dma capable address otherwise memory corruption occurs as 517 * bios has to be able to access it. 518 */ 519 input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL); 520 input.length = args.length; 521 if (!input.pointer) 522 return -ENOMEM; 523 phys_addr = virt_to_phys(input.pointer); 524 525 status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN, 526 phys_addr, 0, &retval); 527 if (!status) 528 memcpy(args.pointer, input.pointer, args.length); 529 530 kfree(input.pointer); 531 if (status) 532 return -ENXIO; 533 534 return retval; 535 } 536 537 static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval) 538 { 539 int err; 540 541 err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval); 542 543 if (err) 544 return err; 545 546 if (*retval == ~0) 547 return -ENODEV; 548 549 return 0; 550 } 551 552 static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param, 553 u32 *retval) 554 { 555 return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id, 556 ctrl_param, retval); 557 } 558 559 /* Helper for special devices with magic return codes */ 560 static int asus_wmi_get_devstate_bits(struct asus_wmi *asus, 561 u32 dev_id, u32 mask) 562 { 563 u32 retval = 0; 564 int err; 565 566 err = asus_wmi_get_devstate(asus, dev_id, &retval); 567 if (err < 0) 568 return err; 569 570 if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT)) 571 return -ENODEV; 572 573 if (mask == ASUS_WMI_DSTS_STATUS_BIT) { 574 if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT) 575 return -ENODEV; 576 } 577 578 return retval & mask; 579 } 580 581 static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id) 582 { 583 return asus_wmi_get_devstate_bits(asus, dev_id, 584 ASUS_WMI_DSTS_STATUS_BIT); 585 } 586 587 static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id) 588 { 589 u32 retval; 590 int status = asus_wmi_get_devstate(asus, dev_id, &retval); 591 pr_debug("%s called (0x%08x), retval: 0x%08x\n", __func__, dev_id, retval); 592 593 return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT); 594 } 595 596 /* Input **********************************************************************/ 597 static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value) 598 { 599 input_report_switch(asus->inputdev, SW_TABLET_MODE, 600 asus->tablet_switch_inverted ? !value : value); 601 input_sync(asus->inputdev); 602 } 603 604 static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code) 605 { 606 struct device *dev = &asus->platform_device->dev; 607 int result; 608 609 result = asus_wmi_get_devstate_simple(asus, dev_id); 610 if (result >= 0) { 611 input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE); 612 asus_wmi_tablet_sw_report(asus, result); 613 asus->tablet_switch_dev_id = dev_id; 614 asus->tablet_switch_event_code = event_code; 615 } else if (result == -ENODEV) { 616 dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug."); 617 } else { 618 dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result); 619 } 620 } 621 622 static int asus_wmi_input_init(struct asus_wmi *asus) 623 { 624 struct device *dev = &asus->platform_device->dev; 625 int err; 626 627 asus->inputdev = input_allocate_device(); 628 if (!asus->inputdev) 629 return -ENOMEM; 630 631 asus->inputdev->name = asus->driver->input_name; 632 asus->inputdev->phys = asus->driver->input_phys; 633 asus->inputdev->id.bustype = BUS_HOST; 634 asus->inputdev->dev.parent = dev; 635 set_bit(EV_REP, asus->inputdev->evbit); 636 637 err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL); 638 if (err) 639 goto err_free_dev; 640 641 switch (asus->driver->quirks->tablet_switch_mode) { 642 case asus_wmi_no_tablet_switch: 643 break; 644 case asus_wmi_kbd_dock_devid: 645 asus->tablet_switch_inverted = true; 646 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE); 647 break; 648 case asus_wmi_lid_flip_devid: 649 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP); 650 break; 651 case asus_wmi_lid_flip_rog_devid: 652 asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG); 653 break; 654 } 655 656 err = input_register_device(asus->inputdev); 657 if (err) 658 goto err_free_dev; 659 660 return 0; 661 662 err_free_dev: 663 input_free_device(asus->inputdev); 664 return err; 665 } 666 667 static void asus_wmi_input_exit(struct asus_wmi *asus) 668 { 669 if (asus->inputdev) 670 input_unregister_device(asus->inputdev); 671 672 asus->inputdev = NULL; 673 } 674 675 /* Tablet mode ****************************************************************/ 676 677 static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus) 678 { 679 int result; 680 681 if (!asus->tablet_switch_dev_id) 682 return; 683 684 result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id); 685 if (result >= 0) 686 asus_wmi_tablet_sw_report(asus, result); 687 } 688 689 /* Charging mode, 1=Barrel, 2=USB ******************************************/ 690 static ssize_t charge_mode_show(struct device *dev, 691 struct device_attribute *attr, char *buf) 692 { 693 struct asus_wmi *asus = dev_get_drvdata(dev); 694 int result, value; 695 696 result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value); 697 if (result < 0) 698 return result; 699 700 return sysfs_emit(buf, "%d\n", value & 0xff); 701 } 702 703 static DEVICE_ATTR_RO(charge_mode); 704 705 /* dGPU ********************************************************************/ 706 static ssize_t dgpu_disable_show(struct device *dev, 707 struct device_attribute *attr, char *buf) 708 { 709 struct asus_wmi *asus = dev_get_drvdata(dev); 710 int result; 711 712 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU); 713 if (result < 0) 714 return result; 715 716 return sysfs_emit(buf, "%d\n", result); 717 } 718 719 /* 720 * A user may be required to store the value twice, typcial store first, then 721 * rescan PCI bus to activate power, then store a second time to save correctly. 722 * The reason for this is that an extra code path in the ACPI is enabled when 723 * the device and bus are powered. 724 */ 725 static ssize_t dgpu_disable_store(struct device *dev, 726 struct device_attribute *attr, 727 const char *buf, size_t count) 728 { 729 int result, err; 730 u32 disable; 731 732 struct asus_wmi *asus = dev_get_drvdata(dev); 733 734 result = kstrtou32(buf, 10, &disable); 735 if (result) 736 return result; 737 738 if (disable > 1) 739 return -EINVAL; 740 741 if (asus->gpu_mux_dev) { 742 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev); 743 if (result < 0) 744 /* An error here may signal greater failure of GPU handling */ 745 return result; 746 if (!result && disable) { 747 err = -ENODEV; 748 pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err); 749 return err; 750 } 751 } 752 753 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result); 754 if (err) { 755 pr_warn("Failed to set dgpu disable: %d\n", err); 756 return err; 757 } 758 759 if (result > 1) { 760 pr_warn("Failed to set dgpu disable (result): 0x%x\n", result); 761 return -EIO; 762 } 763 764 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable"); 765 766 return count; 767 } 768 static DEVICE_ATTR_RW(dgpu_disable); 769 770 /* eGPU ********************************************************************/ 771 static ssize_t egpu_enable_show(struct device *dev, 772 struct device_attribute *attr, char *buf) 773 { 774 struct asus_wmi *asus = dev_get_drvdata(dev); 775 int result; 776 777 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU); 778 if (result < 0) 779 return result; 780 781 return sysfs_emit(buf, "%d\n", result); 782 } 783 784 /* The ACPI call to enable the eGPU also disables the internal dGPU */ 785 static ssize_t egpu_enable_store(struct device *dev, 786 struct device_attribute *attr, 787 const char *buf, size_t count) 788 { 789 int result, err; 790 u32 enable; 791 792 struct asus_wmi *asus = dev_get_drvdata(dev); 793 794 err = kstrtou32(buf, 10, &enable); 795 if (err) 796 return err; 797 798 if (enable > 1) 799 return -EINVAL; 800 801 err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED); 802 if (err < 0) { 803 pr_warn("Failed to get egpu connection status: %d\n", err); 804 return err; 805 } 806 807 if (asus->gpu_mux_dev) { 808 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev); 809 if (result < 0) { 810 /* An error here may signal greater failure of GPU handling */ 811 pr_warn("Failed to get gpu mux status: %d\n", result); 812 return result; 813 } 814 if (!result && enable) { 815 err = -ENODEV; 816 pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err); 817 return err; 818 } 819 } 820 821 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result); 822 if (err) { 823 pr_warn("Failed to set egpu state: %d\n", err); 824 return err; 825 } 826 827 if (result > 1) { 828 pr_warn("Failed to set egpu state (retval): 0x%x\n", result); 829 return -EIO; 830 } 831 832 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable"); 833 834 return count; 835 } 836 static DEVICE_ATTR_RW(egpu_enable); 837 838 /* Is eGPU connected? *********************************************************/ 839 static ssize_t egpu_connected_show(struct device *dev, 840 struct device_attribute *attr, char *buf) 841 { 842 struct asus_wmi *asus = dev_get_drvdata(dev); 843 int result; 844 845 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED); 846 if (result < 0) 847 return result; 848 849 return sysfs_emit(buf, "%d\n", result); 850 } 851 852 static DEVICE_ATTR_RO(egpu_connected); 853 854 /* gpu mux switch *************************************************************/ 855 static ssize_t gpu_mux_mode_show(struct device *dev, 856 struct device_attribute *attr, char *buf) 857 { 858 struct asus_wmi *asus = dev_get_drvdata(dev); 859 int result; 860 861 result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev); 862 if (result < 0) 863 return result; 864 865 return sysfs_emit(buf, "%d\n", result); 866 } 867 868 static ssize_t gpu_mux_mode_store(struct device *dev, 869 struct device_attribute *attr, 870 const char *buf, size_t count) 871 { 872 struct asus_wmi *asus = dev_get_drvdata(dev); 873 int result, err; 874 u32 optimus; 875 876 err = kstrtou32(buf, 10, &optimus); 877 if (err) 878 return err; 879 880 if (optimus > 1) 881 return -EINVAL; 882 883 if (asus->dgpu_disable_available) { 884 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU); 885 if (result < 0) 886 /* An error here may signal greater failure of GPU handling */ 887 return result; 888 if (result && !optimus) { 889 err = -ENODEV; 890 pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err); 891 return err; 892 } 893 } 894 895 if (asus->egpu_enable_available) { 896 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU); 897 if (result < 0) 898 /* An error here may signal greater failure of GPU handling */ 899 return result; 900 if (result && !optimus) { 901 err = -ENODEV; 902 pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err); 903 return err; 904 } 905 } 906 907 err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result); 908 if (err) { 909 dev_err(dev, "Failed to set GPU MUX mode: %d\n", err); 910 return err; 911 } 912 /* !1 is considered a fail by ASUS */ 913 if (result != 1) { 914 dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result); 915 return -EIO; 916 } 917 918 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode"); 919 920 return count; 921 } 922 static DEVICE_ATTR_RW(gpu_mux_mode); 923 924 /* TUF Laptop Keyboard RGB Modes **********************************************/ 925 static ssize_t kbd_rgb_mode_store(struct device *dev, 926 struct device_attribute *attr, 927 const char *buf, size_t count) 928 { 929 u32 cmd, mode, r, g, b, speed; 930 struct led_classdev *led; 931 struct asus_wmi *asus; 932 int err; 933 934 led = dev_get_drvdata(dev); 935 asus = container_of(led, struct asus_wmi, kbd_led); 936 937 if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6) 938 return -EINVAL; 939 940 /* B3 is set and B4 is save to BIOS */ 941 switch (cmd) { 942 case 0: 943 cmd = 0xb3; 944 break; 945 case 1: 946 cmd = 0xb4; 947 break; 948 default: 949 return -EINVAL; 950 } 951 952 /* These are the known usable modes across all TUF/ROG */ 953 if (mode >= 12 || mode == 9) 954 mode = 10; 955 956 switch (speed) { 957 case 0: 958 speed = 0xe1; 959 break; 960 case 1: 961 speed = 0xeb; 962 break; 963 case 2: 964 speed = 0xf5; 965 break; 966 default: 967 speed = 0xeb; 968 } 969 970 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev, 971 cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL); 972 if (err) 973 return err; 974 975 return count; 976 } 977 static DEVICE_ATTR_WO(kbd_rgb_mode); 978 979 static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444, 980 "cmd mode red green blue speed"); 981 982 static struct attribute *kbd_rgb_mode_attrs[] = { 983 &dev_attr_kbd_rgb_mode.attr, 984 &dev_attr_kbd_rgb_mode_index.attr.attr, 985 NULL, 986 }; 987 988 static const struct attribute_group kbd_rgb_mode_group = { 989 .attrs = kbd_rgb_mode_attrs, 990 }; 991 992 /* TUF Laptop Keyboard RGB State **********************************************/ 993 static ssize_t kbd_rgb_state_store(struct device *dev, 994 struct device_attribute *attr, 995 const char *buf, size_t count) 996 { 997 u32 flags, cmd, boot, awake, sleep, keyboard; 998 int err; 999 1000 if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5) 1001 return -EINVAL; 1002 1003 if (cmd) 1004 cmd = BIT(2); 1005 1006 flags = 0; 1007 if (boot) 1008 flags |= BIT(1); 1009 if (awake) 1010 flags |= BIT(3); 1011 if (sleep) 1012 flags |= BIT(5); 1013 if (keyboard) 1014 flags |= BIT(7); 1015 1016 /* 0xbd is the required default arg0 for the method. Nothing happens otherwise */ 1017 err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, 1018 ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL); 1019 if (err) 1020 return err; 1021 1022 return count; 1023 } 1024 static DEVICE_ATTR_WO(kbd_rgb_state); 1025 1026 static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444, 1027 "cmd boot awake sleep keyboard"); 1028 1029 static struct attribute *kbd_rgb_state_attrs[] = { 1030 &dev_attr_kbd_rgb_state.attr, 1031 &dev_attr_kbd_rgb_state_index.attr.attr, 1032 NULL, 1033 }; 1034 1035 static const struct attribute_group kbd_rgb_state_group = { 1036 .attrs = kbd_rgb_state_attrs, 1037 }; 1038 1039 static const struct attribute_group *kbd_rgb_mode_groups[] = { 1040 NULL, 1041 NULL, 1042 NULL, 1043 }; 1044 1045 /* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/ 1046 static ssize_t ppt_pl2_sppt_store(struct device *dev, 1047 struct device_attribute *attr, 1048 const char *buf, size_t count) 1049 { 1050 struct asus_wmi *asus = dev_get_drvdata(dev); 1051 int result, err; 1052 u32 value; 1053 1054 result = kstrtou32(buf, 10, &value); 1055 if (result) 1056 return result; 1057 1058 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX) 1059 return -EINVAL; 1060 1061 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result); 1062 if (err) { 1063 pr_warn("Failed to set ppt_pl2_sppt: %d\n", err); 1064 return err; 1065 } 1066 1067 if (result > 1) { 1068 pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result); 1069 return -EIO; 1070 } 1071 1072 asus->ppt_pl2_sppt = value; 1073 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt"); 1074 1075 return count; 1076 } 1077 1078 static ssize_t ppt_pl2_sppt_show(struct device *dev, 1079 struct device_attribute *attr, 1080 char *buf) 1081 { 1082 struct asus_wmi *asus = dev_get_drvdata(dev); 1083 1084 return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt); 1085 } 1086 static DEVICE_ATTR_RW(ppt_pl2_sppt); 1087 1088 /* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/ 1089 static ssize_t ppt_pl1_spl_store(struct device *dev, 1090 struct device_attribute *attr, 1091 const char *buf, size_t count) 1092 { 1093 struct asus_wmi *asus = dev_get_drvdata(dev); 1094 int result, err; 1095 u32 value; 1096 1097 result = kstrtou32(buf, 10, &value); 1098 if (result) 1099 return result; 1100 1101 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX) 1102 return -EINVAL; 1103 1104 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result); 1105 if (err) { 1106 pr_warn("Failed to set ppt_pl1_spl: %d\n", err); 1107 return err; 1108 } 1109 1110 if (result > 1) { 1111 pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result); 1112 return -EIO; 1113 } 1114 1115 asus->ppt_pl1_spl = value; 1116 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl"); 1117 1118 return count; 1119 } 1120 static ssize_t ppt_pl1_spl_show(struct device *dev, 1121 struct device_attribute *attr, 1122 char *buf) 1123 { 1124 struct asus_wmi *asus = dev_get_drvdata(dev); 1125 1126 return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl); 1127 } 1128 static DEVICE_ATTR_RW(ppt_pl1_spl); 1129 1130 /* Tunable: PPT APU FPPT ******************************************************/ 1131 static ssize_t ppt_fppt_store(struct device *dev, 1132 struct device_attribute *attr, 1133 const char *buf, size_t count) 1134 { 1135 struct asus_wmi *asus = dev_get_drvdata(dev); 1136 int result, err; 1137 u32 value; 1138 1139 result = kstrtou32(buf, 10, &value); 1140 if (result) 1141 return result; 1142 1143 if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX) 1144 return -EINVAL; 1145 1146 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result); 1147 if (err) { 1148 pr_warn("Failed to set ppt_fppt: %d\n", err); 1149 return err; 1150 } 1151 1152 if (result > 1) { 1153 pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result); 1154 return -EIO; 1155 } 1156 1157 asus->ppt_fppt = value; 1158 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt"); 1159 1160 return count; 1161 } 1162 1163 static ssize_t ppt_fppt_show(struct device *dev, 1164 struct device_attribute *attr, 1165 char *buf) 1166 { 1167 struct asus_wmi *asus = dev_get_drvdata(dev); 1168 1169 return sysfs_emit(buf, "%u\n", asus->ppt_fppt); 1170 } 1171 static DEVICE_ATTR_RW(ppt_fppt); 1172 1173 /* Tunable: PPT APU SPPT *****************************************************/ 1174 static ssize_t ppt_apu_sppt_store(struct device *dev, 1175 struct device_attribute *attr, 1176 const char *buf, size_t count) 1177 { 1178 struct asus_wmi *asus = dev_get_drvdata(dev); 1179 int result, err; 1180 u32 value; 1181 1182 result = kstrtou32(buf, 10, &value); 1183 if (result) 1184 return result; 1185 1186 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX) 1187 return -EINVAL; 1188 1189 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result); 1190 if (err) { 1191 pr_warn("Failed to set ppt_apu_sppt: %d\n", err); 1192 return err; 1193 } 1194 1195 if (result > 1) { 1196 pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result); 1197 return -EIO; 1198 } 1199 1200 asus->ppt_apu_sppt = value; 1201 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt"); 1202 1203 return count; 1204 } 1205 1206 static ssize_t ppt_apu_sppt_show(struct device *dev, 1207 struct device_attribute *attr, 1208 char *buf) 1209 { 1210 struct asus_wmi *asus = dev_get_drvdata(dev); 1211 1212 return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt); 1213 } 1214 static DEVICE_ATTR_RW(ppt_apu_sppt); 1215 1216 /* Tunable: PPT platform SPPT ************************************************/ 1217 static ssize_t ppt_platform_sppt_store(struct device *dev, 1218 struct device_attribute *attr, 1219 const char *buf, size_t count) 1220 { 1221 struct asus_wmi *asus = dev_get_drvdata(dev); 1222 int result, err; 1223 u32 value; 1224 1225 result = kstrtou32(buf, 10, &value); 1226 if (result) 1227 return result; 1228 1229 if (value < PPT_CPU_MIN || value > PPT_CPU_MAX) 1230 return -EINVAL; 1231 1232 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result); 1233 if (err) { 1234 pr_warn("Failed to set ppt_platform_sppt: %d\n", err); 1235 return err; 1236 } 1237 1238 if (result > 1) { 1239 pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result); 1240 return -EIO; 1241 } 1242 1243 asus->ppt_platform_sppt = value; 1244 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt"); 1245 1246 return count; 1247 } 1248 1249 static ssize_t ppt_platform_sppt_show(struct device *dev, 1250 struct device_attribute *attr, 1251 char *buf) 1252 { 1253 struct asus_wmi *asus = dev_get_drvdata(dev); 1254 1255 return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt); 1256 } 1257 static DEVICE_ATTR_RW(ppt_platform_sppt); 1258 1259 /* Tunable: NVIDIA dynamic boost *********************************************/ 1260 static ssize_t nv_dynamic_boost_store(struct device *dev, 1261 struct device_attribute *attr, 1262 const char *buf, size_t count) 1263 { 1264 struct asus_wmi *asus = dev_get_drvdata(dev); 1265 int result, err; 1266 u32 value; 1267 1268 result = kstrtou32(buf, 10, &value); 1269 if (result) 1270 return result; 1271 1272 if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX) 1273 return -EINVAL; 1274 1275 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result); 1276 if (err) { 1277 pr_warn("Failed to set nv_dynamic_boost: %d\n", err); 1278 return err; 1279 } 1280 1281 if (result > 1) { 1282 pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result); 1283 return -EIO; 1284 } 1285 1286 asus->nv_dynamic_boost = value; 1287 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost"); 1288 1289 return count; 1290 } 1291 1292 static ssize_t nv_dynamic_boost_show(struct device *dev, 1293 struct device_attribute *attr, 1294 char *buf) 1295 { 1296 struct asus_wmi *asus = dev_get_drvdata(dev); 1297 1298 return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost); 1299 } 1300 static DEVICE_ATTR_RW(nv_dynamic_boost); 1301 1302 /* Tunable: NVIDIA temperature target ****************************************/ 1303 static ssize_t nv_temp_target_store(struct device *dev, 1304 struct device_attribute *attr, 1305 const char *buf, size_t count) 1306 { 1307 struct asus_wmi *asus = dev_get_drvdata(dev); 1308 int result, err; 1309 u32 value; 1310 1311 result = kstrtou32(buf, 10, &value); 1312 if (result) 1313 return result; 1314 1315 if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX) 1316 return -EINVAL; 1317 1318 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result); 1319 if (err) { 1320 pr_warn("Failed to set nv_temp_target: %d\n", err); 1321 return err; 1322 } 1323 1324 if (result > 1) { 1325 pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result); 1326 return -EIO; 1327 } 1328 1329 asus->nv_temp_target = value; 1330 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target"); 1331 1332 return count; 1333 } 1334 1335 static ssize_t nv_temp_target_show(struct device *dev, 1336 struct device_attribute *attr, 1337 char *buf) 1338 { 1339 struct asus_wmi *asus = dev_get_drvdata(dev); 1340 1341 return sysfs_emit(buf, "%u\n", asus->nv_temp_target); 1342 } 1343 static DEVICE_ATTR_RW(nv_temp_target); 1344 1345 /* Ally MCU Powersave ********************************************************/ 1346 static ssize_t mcu_powersave_show(struct device *dev, 1347 struct device_attribute *attr, char *buf) 1348 { 1349 struct asus_wmi *asus = dev_get_drvdata(dev); 1350 int result; 1351 1352 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE); 1353 if (result < 0) 1354 return result; 1355 1356 return sysfs_emit(buf, "%d\n", result); 1357 } 1358 1359 static ssize_t mcu_powersave_store(struct device *dev, 1360 struct device_attribute *attr, 1361 const char *buf, size_t count) 1362 { 1363 int result, err; 1364 u32 enable; 1365 1366 struct asus_wmi *asus = dev_get_drvdata(dev); 1367 1368 result = kstrtou32(buf, 10, &enable); 1369 if (result) 1370 return result; 1371 1372 if (enable > 1) 1373 return -EINVAL; 1374 1375 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result); 1376 if (err) { 1377 pr_warn("Failed to set MCU powersave: %d\n", err); 1378 return err; 1379 } 1380 1381 if (result > 1) { 1382 pr_warn("Failed to set MCU powersave (result): 0x%x\n", result); 1383 return -EIO; 1384 } 1385 1386 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave"); 1387 1388 return count; 1389 } 1390 static DEVICE_ATTR_RW(mcu_powersave); 1391 1392 /* Battery ********************************************************************/ 1393 1394 /* The battery maximum charging percentage */ 1395 static int charge_end_threshold; 1396 1397 static ssize_t charge_control_end_threshold_store(struct device *dev, 1398 struct device_attribute *attr, 1399 const char *buf, size_t count) 1400 { 1401 int value, ret, rv; 1402 1403 ret = kstrtouint(buf, 10, &value); 1404 if (ret) 1405 return ret; 1406 1407 if (value < 0 || value > 100) 1408 return -EINVAL; 1409 1410 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv); 1411 if (ret) 1412 return ret; 1413 1414 if (rv != 1) 1415 return -EIO; 1416 1417 /* There isn't any method in the DSDT to read the threshold, so we 1418 * save the threshold. 1419 */ 1420 charge_end_threshold = value; 1421 return count; 1422 } 1423 1424 static ssize_t charge_control_end_threshold_show(struct device *device, 1425 struct device_attribute *attr, 1426 char *buf) 1427 { 1428 return sysfs_emit(buf, "%d\n", charge_end_threshold); 1429 } 1430 1431 static DEVICE_ATTR_RW(charge_control_end_threshold); 1432 1433 static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook) 1434 { 1435 /* The WMI method does not provide a way to specific a battery, so we 1436 * just assume it is the first battery. 1437 * Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first 1438 * battery is named BATT. 1439 */ 1440 if (strcmp(battery->desc->name, "BAT0") != 0 && 1441 strcmp(battery->desc->name, "BAT1") != 0 && 1442 strcmp(battery->desc->name, "BATC") != 0 && 1443 strcmp(battery->desc->name, "BATT") != 0) 1444 return -ENODEV; 1445 1446 if (device_create_file(&battery->dev, 1447 &dev_attr_charge_control_end_threshold)) 1448 return -ENODEV; 1449 1450 /* The charge threshold is only reset when the system is power cycled, 1451 * and we can't get the current threshold so let set it to 100% when 1452 * a battery is added. 1453 */ 1454 asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL); 1455 charge_end_threshold = 100; 1456 1457 return 0; 1458 } 1459 1460 static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook) 1461 { 1462 device_remove_file(&battery->dev, 1463 &dev_attr_charge_control_end_threshold); 1464 return 0; 1465 } 1466 1467 static struct acpi_battery_hook battery_hook = { 1468 .add_battery = asus_wmi_battery_add, 1469 .remove_battery = asus_wmi_battery_remove, 1470 .name = "ASUS Battery Extension", 1471 }; 1472 1473 static void asus_wmi_battery_init(struct asus_wmi *asus) 1474 { 1475 asus->battery_rsoc_available = false; 1476 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) { 1477 asus->battery_rsoc_available = true; 1478 battery_hook_register(&battery_hook); 1479 } 1480 } 1481 1482 static void asus_wmi_battery_exit(struct asus_wmi *asus) 1483 { 1484 if (asus->battery_rsoc_available) 1485 battery_hook_unregister(&battery_hook); 1486 } 1487 1488 /* LEDs ***********************************************************************/ 1489 1490 /* 1491 * These functions actually update the LED's, and are called from a 1492 * workqueue. By doing this as separate work rather than when the LED 1493 * subsystem asks, we avoid messing with the Asus ACPI stuff during a 1494 * potentially bad time, such as a timer interrupt. 1495 */ 1496 static void tpd_led_update(struct work_struct *work) 1497 { 1498 int ctrl_param; 1499 struct asus_wmi *asus; 1500 1501 asus = container_of(work, struct asus_wmi, tpd_led_work); 1502 1503 ctrl_param = asus->tpd_led_wk; 1504 asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL); 1505 } 1506 1507 static void tpd_led_set(struct led_classdev *led_cdev, 1508 enum led_brightness value) 1509 { 1510 struct asus_wmi *asus; 1511 1512 asus = container_of(led_cdev, struct asus_wmi, tpd_led); 1513 1514 asus->tpd_led_wk = !!value; 1515 queue_work(asus->led_workqueue, &asus->tpd_led_work); 1516 } 1517 1518 static int read_tpd_led_state(struct asus_wmi *asus) 1519 { 1520 return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED); 1521 } 1522 1523 static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) 1524 { 1525 struct asus_wmi *asus; 1526 1527 asus = container_of(led_cdev, struct asus_wmi, tpd_led); 1528 1529 return read_tpd_led_state(asus); 1530 } 1531 1532 static void kbd_led_update(struct asus_wmi *asus) 1533 { 1534 int ctrl_param = 0; 1535 1536 ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); 1537 asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL); 1538 } 1539 1540 static int kbd_led_read(struct asus_wmi *asus, int *level, int *env) 1541 { 1542 int retval; 1543 1544 /* 1545 * bits 0-2: level 1546 * bit 7: light on/off 1547 * bit 8-10: environment (0: dark, 1: normal, 2: light) 1548 * bit 17: status unknown 1549 */ 1550 retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT, 1551 0xFFFF); 1552 1553 /* Unknown status is considered as off */ 1554 if (retval == 0x8000) 1555 retval = 0; 1556 1557 if (retval < 0) 1558 return retval; 1559 1560 if (level) 1561 *level = retval & 0x7F; 1562 if (env) 1563 *env = (retval >> 8) & 0x7F; 1564 return 0; 1565 } 1566 1567 static void do_kbd_led_set(struct led_classdev *led_cdev, int value) 1568 { 1569 struct asus_wmi *asus; 1570 int max_level; 1571 1572 asus = container_of(led_cdev, struct asus_wmi, kbd_led); 1573 max_level = asus->kbd_led.max_brightness; 1574 1575 asus->kbd_led_wk = clamp_val(value, 0, max_level); 1576 kbd_led_update(asus); 1577 } 1578 1579 static void kbd_led_set(struct led_classdev *led_cdev, 1580 enum led_brightness value) 1581 { 1582 /* Prevent disabling keyboard backlight on module unregister */ 1583 if (led_cdev->flags & LED_UNREGISTERING) 1584 return; 1585 1586 do_kbd_led_set(led_cdev, value); 1587 } 1588 1589 static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value) 1590 { 1591 struct led_classdev *led_cdev = &asus->kbd_led; 1592 1593 do_kbd_led_set(led_cdev, value); 1594 led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk); 1595 } 1596 1597 static enum led_brightness kbd_led_get(struct led_classdev *led_cdev) 1598 { 1599 struct asus_wmi *asus; 1600 int retval, value; 1601 1602 asus = container_of(led_cdev, struct asus_wmi, kbd_led); 1603 1604 retval = kbd_led_read(asus, &value, NULL); 1605 if (retval < 0) 1606 return retval; 1607 1608 return value; 1609 } 1610 1611 static int wlan_led_unknown_state(struct asus_wmi *asus) 1612 { 1613 u32 result; 1614 1615 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result); 1616 1617 return result & ASUS_WMI_DSTS_UNKNOWN_BIT; 1618 } 1619 1620 static void wlan_led_update(struct work_struct *work) 1621 { 1622 int ctrl_param; 1623 struct asus_wmi *asus; 1624 1625 asus = container_of(work, struct asus_wmi, wlan_led_work); 1626 1627 ctrl_param = asus->wlan_led_wk; 1628 asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL); 1629 } 1630 1631 static void wlan_led_set(struct led_classdev *led_cdev, 1632 enum led_brightness value) 1633 { 1634 struct asus_wmi *asus; 1635 1636 asus = container_of(led_cdev, struct asus_wmi, wlan_led); 1637 1638 asus->wlan_led_wk = !!value; 1639 queue_work(asus->led_workqueue, &asus->wlan_led_work); 1640 } 1641 1642 static enum led_brightness wlan_led_get(struct led_classdev *led_cdev) 1643 { 1644 struct asus_wmi *asus; 1645 u32 result; 1646 1647 asus = container_of(led_cdev, struct asus_wmi, wlan_led); 1648 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result); 1649 1650 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK; 1651 } 1652 1653 static void lightbar_led_update(struct work_struct *work) 1654 { 1655 struct asus_wmi *asus; 1656 int ctrl_param; 1657 1658 asus = container_of(work, struct asus_wmi, lightbar_led_work); 1659 1660 ctrl_param = asus->lightbar_led_wk; 1661 asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL); 1662 } 1663 1664 static void lightbar_led_set(struct led_classdev *led_cdev, 1665 enum led_brightness value) 1666 { 1667 struct asus_wmi *asus; 1668 1669 asus = container_of(led_cdev, struct asus_wmi, lightbar_led); 1670 1671 asus->lightbar_led_wk = !!value; 1672 queue_work(asus->led_workqueue, &asus->lightbar_led_work); 1673 } 1674 1675 static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev) 1676 { 1677 struct asus_wmi *asus; 1678 u32 result; 1679 1680 asus = container_of(led_cdev, struct asus_wmi, lightbar_led); 1681 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result); 1682 1683 return result & ASUS_WMI_DSTS_LIGHTBAR_MASK; 1684 } 1685 1686 static int micmute_led_set(struct led_classdev *led_cdev, 1687 enum led_brightness brightness) 1688 { 1689 int state = brightness != LED_OFF; 1690 int err; 1691 1692 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL); 1693 return err < 0 ? err : 0; 1694 } 1695 1696 static enum led_brightness camera_led_get(struct led_classdev *led_cdev) 1697 { 1698 struct asus_wmi *asus; 1699 u32 result; 1700 1701 asus = container_of(led_cdev, struct asus_wmi, camera_led); 1702 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result); 1703 1704 return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK; 1705 } 1706 1707 static int camera_led_set(struct led_classdev *led_cdev, 1708 enum led_brightness brightness) 1709 { 1710 int state = brightness != LED_OFF; 1711 int err; 1712 1713 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL); 1714 return err < 0 ? err : 0; 1715 } 1716 1717 static void asus_wmi_led_exit(struct asus_wmi *asus) 1718 { 1719 led_classdev_unregister(&asus->kbd_led); 1720 led_classdev_unregister(&asus->tpd_led); 1721 led_classdev_unregister(&asus->wlan_led); 1722 led_classdev_unregister(&asus->lightbar_led); 1723 led_classdev_unregister(&asus->micmute_led); 1724 led_classdev_unregister(&asus->camera_led); 1725 1726 if (asus->led_workqueue) 1727 destroy_workqueue(asus->led_workqueue); 1728 } 1729 1730 static int asus_wmi_led_init(struct asus_wmi *asus) 1731 { 1732 int rv = 0, num_rgb_groups = 0, led_val; 1733 1734 if (asus->kbd_rgb_dev) 1735 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group; 1736 if (asus->kbd_rgb_state_available) 1737 kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group; 1738 1739 asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); 1740 if (!asus->led_workqueue) 1741 return -ENOMEM; 1742 1743 if (read_tpd_led_state(asus) >= 0) { 1744 INIT_WORK(&asus->tpd_led_work, tpd_led_update); 1745 1746 asus->tpd_led.name = "asus::touchpad"; 1747 asus->tpd_led.brightness_set = tpd_led_set; 1748 asus->tpd_led.brightness_get = tpd_led_get; 1749 asus->tpd_led.max_brightness = 1; 1750 1751 rv = led_classdev_register(&asus->platform_device->dev, 1752 &asus->tpd_led); 1753 if (rv) 1754 goto error; 1755 } 1756 1757 if (!kbd_led_read(asus, &led_val, NULL) && !dmi_check_system(asus_use_hid_led_dmi_ids)) { 1758 pr_info("using asus-wmi for asus::kbd_backlight\n"); 1759 asus->kbd_led_wk = led_val; 1760 asus->kbd_led.name = "asus::kbd_backlight"; 1761 asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED; 1762 asus->kbd_led.brightness_set = kbd_led_set; 1763 asus->kbd_led.brightness_get = kbd_led_get; 1764 asus->kbd_led.max_brightness = 3; 1765 1766 if (num_rgb_groups != 0) 1767 asus->kbd_led.groups = kbd_rgb_mode_groups; 1768 1769 rv = led_classdev_register(&asus->platform_device->dev, 1770 &asus->kbd_led); 1771 if (rv) 1772 goto error; 1773 } 1774 1775 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED) 1776 && (asus->driver->quirks->wapf > 0)) { 1777 INIT_WORK(&asus->wlan_led_work, wlan_led_update); 1778 1779 asus->wlan_led.name = "asus::wlan"; 1780 asus->wlan_led.brightness_set = wlan_led_set; 1781 if (!wlan_led_unknown_state(asus)) 1782 asus->wlan_led.brightness_get = wlan_led_get; 1783 asus->wlan_led.flags = LED_CORE_SUSPENDRESUME; 1784 asus->wlan_led.max_brightness = 1; 1785 asus->wlan_led.default_trigger = "asus-wlan"; 1786 1787 rv = led_classdev_register(&asus->platform_device->dev, 1788 &asus->wlan_led); 1789 if (rv) 1790 goto error; 1791 } 1792 1793 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) { 1794 INIT_WORK(&asus->lightbar_led_work, lightbar_led_update); 1795 1796 asus->lightbar_led.name = "asus::lightbar"; 1797 asus->lightbar_led.brightness_set = lightbar_led_set; 1798 asus->lightbar_led.brightness_get = lightbar_led_get; 1799 asus->lightbar_led.max_brightness = 1; 1800 1801 rv = led_classdev_register(&asus->platform_device->dev, 1802 &asus->lightbar_led); 1803 } 1804 1805 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) { 1806 asus->micmute_led.name = "platform::micmute"; 1807 asus->micmute_led.max_brightness = 1; 1808 asus->micmute_led.brightness_set_blocking = micmute_led_set; 1809 asus->micmute_led.default_trigger = "audio-micmute"; 1810 1811 rv = led_classdev_register(&asus->platform_device->dev, 1812 &asus->micmute_led); 1813 if (rv) 1814 goto error; 1815 } 1816 1817 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) { 1818 asus->camera_led.name = "asus::camera"; 1819 asus->camera_led.max_brightness = 1; 1820 asus->camera_led.brightness_get = camera_led_get; 1821 asus->camera_led.brightness_set_blocking = camera_led_set; 1822 1823 rv = led_classdev_register(&asus->platform_device->dev, 1824 &asus->camera_led); 1825 if (rv) 1826 goto error; 1827 } 1828 1829 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_OOBE)) { 1830 /* 1831 * Disable OOBE state, so that e.g. the keyboard backlight 1832 * works. 1833 */ 1834 rv = asus_wmi_set_devstate(ASUS_WMI_DEVID_OOBE, 1, NULL); 1835 if (rv) 1836 goto error; 1837 } 1838 1839 error: 1840 if (rv) 1841 asus_wmi_led_exit(asus); 1842 1843 return rv; 1844 } 1845 1846 /* RF *************************************************************************/ 1847 1848 /* 1849 * PCI hotplug (for wlan rfkill) 1850 */ 1851 static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus) 1852 { 1853 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); 1854 1855 if (result < 0) 1856 return false; 1857 return !result; 1858 } 1859 1860 static void asus_rfkill_hotplug(struct asus_wmi *asus) 1861 { 1862 struct pci_dev *dev; 1863 struct pci_bus *bus; 1864 bool blocked; 1865 bool absent; 1866 u32 l; 1867 1868 mutex_lock(&asus->wmi_lock); 1869 blocked = asus_wlan_rfkill_blocked(asus); 1870 mutex_unlock(&asus->wmi_lock); 1871 1872 mutex_lock(&asus->hotplug_lock); 1873 pci_lock_rescan_remove(); 1874 1875 if (asus->wlan.rfkill) 1876 rfkill_set_sw_state(asus->wlan.rfkill, blocked); 1877 1878 if (asus->hotplug_slot.ops) { 1879 bus = pci_find_bus(0, 1); 1880 if (!bus) { 1881 pr_warn("Unable to find PCI bus 1?\n"); 1882 goto out_unlock; 1883 } 1884 1885 if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { 1886 pr_err("Unable to read PCI config space?\n"); 1887 goto out_unlock; 1888 } 1889 absent = (l == 0xffffffff); 1890 1891 if (blocked != absent) { 1892 pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n", 1893 blocked ? "blocked" : "unblocked", 1894 absent ? "absent" : "present"); 1895 pr_warn("skipped wireless hotplug as probably inappropriate for this model\n"); 1896 goto out_unlock; 1897 } 1898 1899 if (!blocked) { 1900 dev = pci_get_slot(bus, 0); 1901 if (dev) { 1902 /* Device already present */ 1903 pci_dev_put(dev); 1904 goto out_unlock; 1905 } 1906 dev = pci_scan_single_device(bus, 0); 1907 if (dev) { 1908 pci_bus_assign_resources(bus); 1909 pci_bus_add_device(dev); 1910 } 1911 } else { 1912 dev = pci_get_slot(bus, 0); 1913 if (dev) { 1914 pci_stop_and_remove_bus_device(dev); 1915 pci_dev_put(dev); 1916 } 1917 } 1918 } 1919 1920 out_unlock: 1921 pci_unlock_rescan_remove(); 1922 mutex_unlock(&asus->hotplug_lock); 1923 } 1924 1925 static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data) 1926 { 1927 struct asus_wmi *asus = data; 1928 1929 if (event != ACPI_NOTIFY_BUS_CHECK) 1930 return; 1931 1932 /* 1933 * We can't call directly asus_rfkill_hotplug because most 1934 * of the time WMBC is still being executed and not reetrant. 1935 * There is currently no way to tell ACPICA that we want this 1936 * method to be serialized, we schedule a asus_rfkill_hotplug 1937 * call later, in a safer context. 1938 */ 1939 queue_work(asus->hotplug_workqueue, &asus->hotplug_work); 1940 } 1941 1942 static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node) 1943 { 1944 acpi_status status; 1945 acpi_handle handle; 1946 1947 status = acpi_get_handle(NULL, node, &handle); 1948 if (ACPI_FAILURE(status)) 1949 return -ENODEV; 1950 1951 status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, 1952 asus_rfkill_notify, asus); 1953 if (ACPI_FAILURE(status)) 1954 pr_warn("Failed to register notify on %s\n", node); 1955 1956 return 0; 1957 } 1958 1959 static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, char *node) 1960 { 1961 acpi_status status = AE_OK; 1962 acpi_handle handle; 1963 1964 status = acpi_get_handle(NULL, node, &handle); 1965 if (ACPI_FAILURE(status)) 1966 return; 1967 1968 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, 1969 asus_rfkill_notify); 1970 if (ACPI_FAILURE(status)) 1971 pr_err("Error removing rfkill notify handler %s\n", node); 1972 } 1973 1974 static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot, 1975 u8 *value) 1976 { 1977 struct asus_wmi *asus = container_of(hotplug_slot, 1978 struct asus_wmi, hotplug_slot); 1979 int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); 1980 1981 if (result < 0) 1982 return result; 1983 1984 *value = !!result; 1985 return 0; 1986 } 1987 1988 static const struct hotplug_slot_ops asus_hotplug_slot_ops = { 1989 .get_adapter_status = asus_get_adapter_status, 1990 .get_power_status = asus_get_adapter_status, 1991 }; 1992 1993 static void asus_hotplug_work(struct work_struct *work) 1994 { 1995 struct asus_wmi *asus; 1996 1997 asus = container_of(work, struct asus_wmi, hotplug_work); 1998 asus_rfkill_hotplug(asus); 1999 } 2000 2001 static int asus_setup_pci_hotplug(struct asus_wmi *asus) 2002 { 2003 int ret = -ENOMEM; 2004 struct pci_bus *bus = pci_find_bus(0, 1); 2005 2006 if (!bus) { 2007 pr_err("Unable to find wifi PCI bus\n"); 2008 return -ENODEV; 2009 } 2010 2011 asus->hotplug_workqueue = 2012 create_singlethread_workqueue("hotplug_workqueue"); 2013 if (!asus->hotplug_workqueue) 2014 goto error_workqueue; 2015 2016 INIT_WORK(&asus->hotplug_work, asus_hotplug_work); 2017 2018 asus->hotplug_slot.ops = &asus_hotplug_slot_ops; 2019 2020 ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi"); 2021 if (ret) { 2022 pr_err("Unable to register hotplug slot - %d\n", ret); 2023 goto error_register; 2024 } 2025 2026 return 0; 2027 2028 error_register: 2029 asus->hotplug_slot.ops = NULL; 2030 destroy_workqueue(asus->hotplug_workqueue); 2031 error_workqueue: 2032 return ret; 2033 } 2034 2035 /* 2036 * Rfkill devices 2037 */ 2038 static int asus_rfkill_set(void *data, bool blocked) 2039 { 2040 struct asus_rfkill *priv = data; 2041 u32 ctrl_param = !blocked; 2042 u32 dev_id = priv->dev_id; 2043 2044 /* 2045 * If the user bit is set, BIOS can't set and record the wlan status, 2046 * it will report the value read from id ASUS_WMI_DEVID_WLAN_LED 2047 * while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN). 2048 * So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED 2049 * while setting the wlan status through WMI. 2050 * This is also the behavior that windows app will do. 2051 */ 2052 if ((dev_id == ASUS_WMI_DEVID_WLAN) && 2053 priv->asus->driver->wlan_ctrl_by_user) 2054 dev_id = ASUS_WMI_DEVID_WLAN_LED; 2055 2056 return asus_wmi_set_devstate(dev_id, ctrl_param, NULL); 2057 } 2058 2059 static void asus_rfkill_query(struct rfkill *rfkill, void *data) 2060 { 2061 struct asus_rfkill *priv = data; 2062 int result; 2063 2064 result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id); 2065 2066 if (result < 0) 2067 return; 2068 2069 rfkill_set_sw_state(priv->rfkill, !result); 2070 } 2071 2072 static int asus_rfkill_wlan_set(void *data, bool blocked) 2073 { 2074 struct asus_rfkill *priv = data; 2075 struct asus_wmi *asus = priv->asus; 2076 int ret; 2077 2078 /* 2079 * This handler is enabled only if hotplug is enabled. 2080 * In this case, the asus_wmi_set_devstate() will 2081 * trigger a wmi notification and we need to wait 2082 * this call to finish before being able to call 2083 * any wmi method 2084 */ 2085 mutex_lock(&asus->wmi_lock); 2086 ret = asus_rfkill_set(data, blocked); 2087 mutex_unlock(&asus->wmi_lock); 2088 return ret; 2089 } 2090 2091 static const struct rfkill_ops asus_rfkill_wlan_ops = { 2092 .set_block = asus_rfkill_wlan_set, 2093 .query = asus_rfkill_query, 2094 }; 2095 2096 static const struct rfkill_ops asus_rfkill_ops = { 2097 .set_block = asus_rfkill_set, 2098 .query = asus_rfkill_query, 2099 }; 2100 2101 static int asus_new_rfkill(struct asus_wmi *asus, 2102 struct asus_rfkill *arfkill, 2103 const char *name, enum rfkill_type type, int dev_id) 2104 { 2105 int result = asus_wmi_get_devstate_simple(asus, dev_id); 2106 struct rfkill **rfkill = &arfkill->rfkill; 2107 2108 if (result < 0) 2109 return result; 2110 2111 arfkill->dev_id = dev_id; 2112 arfkill->asus = asus; 2113 2114 if (dev_id == ASUS_WMI_DEVID_WLAN && 2115 asus->driver->quirks->hotplug_wireless) 2116 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, 2117 &asus_rfkill_wlan_ops, arfkill); 2118 else 2119 *rfkill = rfkill_alloc(name, &asus->platform_device->dev, type, 2120 &asus_rfkill_ops, arfkill); 2121 2122 if (!*rfkill) 2123 return -EINVAL; 2124 2125 if ((dev_id == ASUS_WMI_DEVID_WLAN) && 2126 (asus->driver->quirks->wapf > 0)) 2127 rfkill_set_led_trigger_name(*rfkill, "asus-wlan"); 2128 2129 rfkill_init_sw_state(*rfkill, !result); 2130 result = rfkill_register(*rfkill); 2131 if (result) { 2132 rfkill_destroy(*rfkill); 2133 *rfkill = NULL; 2134 return result; 2135 } 2136 return 0; 2137 } 2138 2139 static void asus_wmi_rfkill_exit(struct asus_wmi *asus) 2140 { 2141 if (asus->driver->wlan_ctrl_by_user && ashs_present()) 2142 return; 2143 2144 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); 2145 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); 2146 asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); 2147 if (asus->wlan.rfkill) { 2148 rfkill_unregister(asus->wlan.rfkill); 2149 rfkill_destroy(asus->wlan.rfkill); 2150 asus->wlan.rfkill = NULL; 2151 } 2152 /* 2153 * Refresh pci hotplug in case the rfkill state was changed after 2154 * asus_unregister_rfkill_notifier() 2155 */ 2156 asus_rfkill_hotplug(asus); 2157 if (asus->hotplug_slot.ops) 2158 pci_hp_deregister(&asus->hotplug_slot); 2159 if (asus->hotplug_workqueue) 2160 destroy_workqueue(asus->hotplug_workqueue); 2161 2162 if (asus->bluetooth.rfkill) { 2163 rfkill_unregister(asus->bluetooth.rfkill); 2164 rfkill_destroy(asus->bluetooth.rfkill); 2165 asus->bluetooth.rfkill = NULL; 2166 } 2167 if (asus->wimax.rfkill) { 2168 rfkill_unregister(asus->wimax.rfkill); 2169 rfkill_destroy(asus->wimax.rfkill); 2170 asus->wimax.rfkill = NULL; 2171 } 2172 if (asus->wwan3g.rfkill) { 2173 rfkill_unregister(asus->wwan3g.rfkill); 2174 rfkill_destroy(asus->wwan3g.rfkill); 2175 asus->wwan3g.rfkill = NULL; 2176 } 2177 if (asus->gps.rfkill) { 2178 rfkill_unregister(asus->gps.rfkill); 2179 rfkill_destroy(asus->gps.rfkill); 2180 asus->gps.rfkill = NULL; 2181 } 2182 if (asus->uwb.rfkill) { 2183 rfkill_unregister(asus->uwb.rfkill); 2184 rfkill_destroy(asus->uwb.rfkill); 2185 asus->uwb.rfkill = NULL; 2186 } 2187 } 2188 2189 static int asus_wmi_rfkill_init(struct asus_wmi *asus) 2190 { 2191 int result = 0; 2192 2193 mutex_init(&asus->hotplug_lock); 2194 mutex_init(&asus->wmi_lock); 2195 2196 result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan", 2197 RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN); 2198 2199 if (result && result != -ENODEV) 2200 goto exit; 2201 2202 result = asus_new_rfkill(asus, &asus->bluetooth, 2203 "asus-bluetooth", RFKILL_TYPE_BLUETOOTH, 2204 ASUS_WMI_DEVID_BLUETOOTH); 2205 2206 if (result && result != -ENODEV) 2207 goto exit; 2208 2209 result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax", 2210 RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX); 2211 2212 if (result && result != -ENODEV) 2213 goto exit; 2214 2215 result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g", 2216 RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G); 2217 2218 if (result && result != -ENODEV) 2219 goto exit; 2220 2221 result = asus_new_rfkill(asus, &asus->gps, "asus-gps", 2222 RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS); 2223 2224 if (result && result != -ENODEV) 2225 goto exit; 2226 2227 result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb", 2228 RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB); 2229 2230 if (result && result != -ENODEV) 2231 goto exit; 2232 2233 if (!asus->driver->quirks->hotplug_wireless) 2234 goto exit; 2235 2236 result = asus_setup_pci_hotplug(asus); 2237 /* 2238 * If we get -EBUSY then something else is handling the PCI hotplug - 2239 * don't fail in this case 2240 */ 2241 if (result == -EBUSY) 2242 result = 0; 2243 2244 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); 2245 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); 2246 asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); 2247 /* 2248 * Refresh pci hotplug in case the rfkill state was changed during 2249 * setup. 2250 */ 2251 asus_rfkill_hotplug(asus); 2252 2253 exit: 2254 if (result && result != -ENODEV) 2255 asus_wmi_rfkill_exit(asus); 2256 2257 if (result == -ENODEV) 2258 result = 0; 2259 2260 return result; 2261 } 2262 2263 /* Panel Overdrive ************************************************************/ 2264 static ssize_t panel_od_show(struct device *dev, 2265 struct device_attribute *attr, char *buf) 2266 { 2267 struct asus_wmi *asus = dev_get_drvdata(dev); 2268 int result; 2269 2270 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD); 2271 if (result < 0) 2272 return result; 2273 2274 return sysfs_emit(buf, "%d\n", result); 2275 } 2276 2277 static ssize_t panel_od_store(struct device *dev, 2278 struct device_attribute *attr, 2279 const char *buf, size_t count) 2280 { 2281 int result, err; 2282 u32 overdrive; 2283 2284 struct asus_wmi *asus = dev_get_drvdata(dev); 2285 2286 result = kstrtou32(buf, 10, &overdrive); 2287 if (result) 2288 return result; 2289 2290 if (overdrive > 1) 2291 return -EINVAL; 2292 2293 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result); 2294 2295 if (err) { 2296 pr_warn("Failed to set panel overdrive: %d\n", err); 2297 return err; 2298 } 2299 2300 if (result > 1) { 2301 pr_warn("Failed to set panel overdrive (result): 0x%x\n", result); 2302 return -EIO; 2303 } 2304 2305 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od"); 2306 2307 return count; 2308 } 2309 static DEVICE_ATTR_RW(panel_od); 2310 2311 /* Bootup sound ***************************************************************/ 2312 2313 static ssize_t boot_sound_show(struct device *dev, 2314 struct device_attribute *attr, char *buf) 2315 { 2316 struct asus_wmi *asus = dev_get_drvdata(dev); 2317 int result; 2318 2319 result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND); 2320 if (result < 0) 2321 return result; 2322 2323 return sysfs_emit(buf, "%d\n", result); 2324 } 2325 2326 static ssize_t boot_sound_store(struct device *dev, 2327 struct device_attribute *attr, 2328 const char *buf, size_t count) 2329 { 2330 int result, err; 2331 u32 snd; 2332 2333 struct asus_wmi *asus = dev_get_drvdata(dev); 2334 2335 result = kstrtou32(buf, 10, &snd); 2336 if (result) 2337 return result; 2338 2339 if (snd > 1) 2340 return -EINVAL; 2341 2342 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result); 2343 if (err) { 2344 pr_warn("Failed to set boot sound: %d\n", err); 2345 return err; 2346 } 2347 2348 if (result > 1) { 2349 pr_warn("Failed to set panel boot sound (result): 0x%x\n", result); 2350 return -EIO; 2351 } 2352 2353 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound"); 2354 2355 return count; 2356 } 2357 static DEVICE_ATTR_RW(boot_sound); 2358 2359 /* Mini-LED mode **************************************************************/ 2360 static ssize_t mini_led_mode_show(struct device *dev, 2361 struct device_attribute *attr, char *buf) 2362 { 2363 struct asus_wmi *asus = dev_get_drvdata(dev); 2364 u32 value; 2365 int err; 2366 2367 err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value); 2368 if (err < 0) 2369 return err; 2370 value = value & ASUS_MINI_LED_MODE_MASK; 2371 2372 /* 2373 * Remap the mode values to match previous generation mini-led. The last gen 2374 * WMI 0 == off, while on this version WMI 2 ==off (flipped). 2375 */ 2376 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) { 2377 switch (value) { 2378 case ASUS_MINI_LED_2024_WEAK: 2379 value = ASUS_MINI_LED_ON; 2380 break; 2381 case ASUS_MINI_LED_2024_STRONG: 2382 value = ASUS_MINI_LED_STRONG_MODE; 2383 break; 2384 case ASUS_MINI_LED_2024_OFF: 2385 value = ASUS_MINI_LED_OFF; 2386 break; 2387 } 2388 } 2389 2390 return sysfs_emit(buf, "%d\n", value); 2391 } 2392 2393 static ssize_t mini_led_mode_store(struct device *dev, 2394 struct device_attribute *attr, 2395 const char *buf, size_t count) 2396 { 2397 int result, err; 2398 u32 mode; 2399 2400 struct asus_wmi *asus = dev_get_drvdata(dev); 2401 2402 result = kstrtou32(buf, 10, &mode); 2403 if (result) 2404 return result; 2405 2406 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE && 2407 mode > ASUS_MINI_LED_ON) 2408 return -EINVAL; 2409 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 && 2410 mode > ASUS_MINI_LED_STRONG_MODE) 2411 return -EINVAL; 2412 2413 /* 2414 * Remap the mode values so expected behaviour is the same as the last 2415 * generation of mini-LED with 0 == off, 1 == on. 2416 */ 2417 if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) { 2418 switch (mode) { 2419 case ASUS_MINI_LED_OFF: 2420 mode = ASUS_MINI_LED_2024_OFF; 2421 break; 2422 case ASUS_MINI_LED_ON: 2423 mode = ASUS_MINI_LED_2024_WEAK; 2424 break; 2425 case ASUS_MINI_LED_STRONG_MODE: 2426 mode = ASUS_MINI_LED_2024_STRONG; 2427 break; 2428 } 2429 } 2430 2431 err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result); 2432 if (err) { 2433 pr_warn("Failed to set mini-LED: %d\n", err); 2434 return err; 2435 } 2436 2437 if (result > 1) { 2438 pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result); 2439 return -EIO; 2440 } 2441 2442 sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode"); 2443 2444 return count; 2445 } 2446 static DEVICE_ATTR_RW(mini_led_mode); 2447 2448 static ssize_t available_mini_led_mode_show(struct device *dev, 2449 struct device_attribute *attr, char *buf) 2450 { 2451 struct asus_wmi *asus = dev_get_drvdata(dev); 2452 2453 switch (asus->mini_led_dev_id) { 2454 case ASUS_WMI_DEVID_MINI_LED_MODE: 2455 return sysfs_emit(buf, "0 1\n"); 2456 case ASUS_WMI_DEVID_MINI_LED_MODE2: 2457 return sysfs_emit(buf, "0 1 2\n"); 2458 } 2459 2460 return sysfs_emit(buf, "0\n"); 2461 } 2462 2463 static DEVICE_ATTR_RO(available_mini_led_mode); 2464 2465 /* Quirks *********************************************************************/ 2466 2467 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus) 2468 { 2469 struct pci_dev *xhci_pdev; 2470 u32 orig_ports_available; 2471 u32 ports_available = asus->driver->quirks->xusb2pr; 2472 2473 xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL, 2474 PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI, 2475 NULL); 2476 2477 if (!xhci_pdev) 2478 return; 2479 2480 pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, 2481 &orig_ports_available); 2482 2483 pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, 2484 cpu_to_le32(ports_available)); 2485 2486 pci_dev_put(xhci_pdev); 2487 2488 pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n", 2489 orig_ports_available, ports_available); 2490 } 2491 2492 /* 2493 * Some devices dont support or have borcken get_als method 2494 * but still support set method. 2495 */ 2496 static void asus_wmi_set_als(void) 2497 { 2498 asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL); 2499 } 2500 2501 /* Hwmon device ***************************************************************/ 2502 2503 static int asus_agfn_fan_speed_read(struct asus_wmi *asus, int fan, 2504 int *speed) 2505 { 2506 struct agfn_fan_args args = { 2507 .agfn.len = sizeof(args), 2508 .agfn.mfun = ASUS_FAN_MFUN, 2509 .agfn.sfun = ASUS_FAN_SFUN_READ, 2510 .fan = fan, 2511 .speed = 0, 2512 }; 2513 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 2514 int status; 2515 2516 if (fan != 1) 2517 return -EINVAL; 2518 2519 status = asus_wmi_evaluate_method_agfn(input); 2520 2521 if (status || args.agfn.err) 2522 return -ENXIO; 2523 2524 if (speed) 2525 *speed = args.speed; 2526 2527 return 0; 2528 } 2529 2530 static int asus_agfn_fan_speed_write(struct asus_wmi *asus, int fan, 2531 int *speed) 2532 { 2533 struct agfn_fan_args args = { 2534 .agfn.len = sizeof(args), 2535 .agfn.mfun = ASUS_FAN_MFUN, 2536 .agfn.sfun = ASUS_FAN_SFUN_WRITE, 2537 .fan = fan, 2538 .speed = speed ? *speed : 0, 2539 }; 2540 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 2541 int status; 2542 2543 /* 1: for setting 1st fan's speed 0: setting auto mode */ 2544 if (fan != 1 && fan != 0) 2545 return -EINVAL; 2546 2547 status = asus_wmi_evaluate_method_agfn(input); 2548 2549 if (status || args.agfn.err) 2550 return -ENXIO; 2551 2552 if (speed && fan == 1) 2553 asus->agfn_pwm = *speed; 2554 2555 return 0; 2556 } 2557 2558 /* 2559 * Check if we can read the speed of one fan. If true we assume we can also 2560 * control it. 2561 */ 2562 static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus) 2563 { 2564 int status; 2565 int speed; 2566 u32 value; 2567 2568 status = asus_agfn_fan_speed_read(asus, 1, &speed); 2569 if (status != 0) 2570 return false; 2571 2572 status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value); 2573 if (status != 0) 2574 return false; 2575 2576 /* 2577 * We need to find a better way, probably using sfun, 2578 * bits or spec ... 2579 * Currently we disable it if: 2580 * - ASUS_WMI_UNSUPPORTED_METHOD is returned 2581 * - reverved bits are non-zero 2582 * - sfun and presence bit are not set 2583 */ 2584 return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000 2585 || (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT))); 2586 } 2587 2588 static int asus_fan_set_auto(struct asus_wmi *asus) 2589 { 2590 int status; 2591 u32 retval; 2592 2593 switch (asus->fan_type) { 2594 case FAN_TYPE_SPEC83: 2595 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL, 2596 0, &retval); 2597 if (status) 2598 return status; 2599 2600 if (retval != 1) 2601 return -EIO; 2602 break; 2603 2604 case FAN_TYPE_AGFN: 2605 status = asus_agfn_fan_speed_write(asus, 0, NULL); 2606 if (status) 2607 return -ENXIO; 2608 break; 2609 2610 default: 2611 return -ENXIO; 2612 } 2613 2614 /* 2615 * Modern models like the G713 also have GPU fan control (this is not AGFN) 2616 */ 2617 if (asus->gpu_fan_type == FAN_TYPE_SPEC83) { 2618 status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL, 2619 0, &retval); 2620 if (status) 2621 return status; 2622 2623 if (retval != 1) 2624 return -EIO; 2625 } 2626 2627 return 0; 2628 } 2629 2630 static ssize_t pwm1_show(struct device *dev, 2631 struct device_attribute *attr, 2632 char *buf) 2633 { 2634 struct asus_wmi *asus = dev_get_drvdata(dev); 2635 int err; 2636 int value; 2637 2638 /* If we already set a value then just return it */ 2639 if (asus->agfn_pwm >= 0) 2640 return sysfs_emit(buf, "%d\n", asus->agfn_pwm); 2641 2642 /* 2643 * If we haven't set already set a value through the AGFN interface, 2644 * we read a current value through the (now-deprecated) FAN_CTRL device. 2645 */ 2646 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value); 2647 if (err < 0) 2648 return err; 2649 2650 value &= 0xFF; 2651 2652 if (value == 1) /* Low Speed */ 2653 value = 85; 2654 else if (value == 2) 2655 value = 170; 2656 else if (value == 3) 2657 value = 255; 2658 else if (value) { 2659 pr_err("Unknown fan speed %#x\n", value); 2660 value = -1; 2661 } 2662 2663 return sysfs_emit(buf, "%d\n", value); 2664 } 2665 2666 static ssize_t pwm1_store(struct device *dev, 2667 struct device_attribute *attr, 2668 const char *buf, size_t count) { 2669 struct asus_wmi *asus = dev_get_drvdata(dev); 2670 int value; 2671 int state; 2672 int ret; 2673 2674 ret = kstrtouint(buf, 10, &value); 2675 if (ret) 2676 return ret; 2677 2678 value = clamp(value, 0, 255); 2679 2680 state = asus_agfn_fan_speed_write(asus, 1, &value); 2681 if (state) 2682 pr_warn("Setting fan speed failed: %d\n", state); 2683 else 2684 asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL; 2685 2686 return count; 2687 } 2688 2689 static ssize_t fan1_input_show(struct device *dev, 2690 struct device_attribute *attr, 2691 char *buf) 2692 { 2693 struct asus_wmi *asus = dev_get_drvdata(dev); 2694 int value; 2695 int ret; 2696 2697 switch (asus->fan_type) { 2698 case FAN_TYPE_SPEC83: 2699 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL, 2700 &value); 2701 if (ret < 0) 2702 return ret; 2703 2704 value &= 0xffff; 2705 break; 2706 2707 case FAN_TYPE_AGFN: 2708 /* no speed readable on manual mode */ 2709 if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL) 2710 return -ENXIO; 2711 2712 ret = asus_agfn_fan_speed_read(asus, 1, &value); 2713 if (ret) { 2714 pr_warn("reading fan speed failed: %d\n", ret); 2715 return -ENXIO; 2716 } 2717 break; 2718 2719 default: 2720 return -ENXIO; 2721 } 2722 2723 return sysfs_emit(buf, "%d\n", value < 0 ? -1 : value * 100); 2724 } 2725 2726 static ssize_t pwm1_enable_show(struct device *dev, 2727 struct device_attribute *attr, 2728 char *buf) 2729 { 2730 struct asus_wmi *asus = dev_get_drvdata(dev); 2731 2732 /* 2733 * Just read back the cached pwm mode. 2734 * 2735 * For the CPU_FAN device, the spec indicates that we should be 2736 * able to read the device status and consult bit 19 to see if we 2737 * are in Full On or Automatic mode. However, this does not work 2738 * in practice on X532FL at least (the bit is always 0) and there's 2739 * also nothing in the DSDT to indicate that this behaviour exists. 2740 */ 2741 return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode); 2742 } 2743 2744 static ssize_t pwm1_enable_store(struct device *dev, 2745 struct device_attribute *attr, 2746 const char *buf, size_t count) 2747 { 2748 struct asus_wmi *asus = dev_get_drvdata(dev); 2749 int status = 0; 2750 int state; 2751 int value; 2752 int ret; 2753 u32 retval; 2754 2755 ret = kstrtouint(buf, 10, &state); 2756 if (ret) 2757 return ret; 2758 2759 if (asus->fan_type == FAN_TYPE_SPEC83) { 2760 switch (state) { /* standard documented hwmon values */ 2761 case ASUS_FAN_CTRL_FULLSPEED: 2762 value = 1; 2763 break; 2764 case ASUS_FAN_CTRL_AUTO: 2765 value = 0; 2766 break; 2767 default: 2768 return -EINVAL; 2769 } 2770 2771 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL, 2772 value, &retval); 2773 if (ret) 2774 return ret; 2775 2776 if (retval != 1) 2777 return -EIO; 2778 } else if (asus->fan_type == FAN_TYPE_AGFN) { 2779 switch (state) { 2780 case ASUS_FAN_CTRL_MANUAL: 2781 break; 2782 2783 case ASUS_FAN_CTRL_AUTO: 2784 status = asus_fan_set_auto(asus); 2785 if (status) 2786 return status; 2787 break; 2788 2789 default: 2790 return -EINVAL; 2791 } 2792 } 2793 2794 asus->fan_pwm_mode = state; 2795 2796 /* Must set to disabled if mode is toggled */ 2797 if (asus->cpu_fan_curve_available) 2798 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false; 2799 if (asus->gpu_fan_curve_available) 2800 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false; 2801 if (asus->mid_fan_curve_available) 2802 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false; 2803 2804 return count; 2805 } 2806 2807 static ssize_t asus_hwmon_temp1(struct device *dev, 2808 struct device_attribute *attr, 2809 char *buf) 2810 { 2811 struct asus_wmi *asus = dev_get_drvdata(dev); 2812 u32 value; 2813 int err; 2814 2815 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value); 2816 if (err < 0) 2817 return err; 2818 2819 return sysfs_emit(buf, "%ld\n", 2820 deci_kelvin_to_millicelsius(value & 0xFFFF)); 2821 } 2822 2823 /* GPU fan on modern ROG laptops */ 2824 static ssize_t fan2_input_show(struct device *dev, 2825 struct device_attribute *attr, 2826 char *buf) 2827 { 2828 struct asus_wmi *asus = dev_get_drvdata(dev); 2829 int value; 2830 int ret; 2831 2832 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value); 2833 if (ret < 0) 2834 return ret; 2835 2836 value &= 0xffff; 2837 2838 return sysfs_emit(buf, "%d\n", value * 100); 2839 } 2840 2841 /* Middle/Center fan on modern ROG laptops */ 2842 static ssize_t fan3_input_show(struct device *dev, 2843 struct device_attribute *attr, 2844 char *buf) 2845 { 2846 struct asus_wmi *asus = dev_get_drvdata(dev); 2847 int value; 2848 int ret; 2849 2850 ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value); 2851 if (ret < 0) 2852 return ret; 2853 2854 value &= 0xffff; 2855 2856 return sysfs_emit(buf, "%d\n", value * 100); 2857 } 2858 2859 static ssize_t pwm2_enable_show(struct device *dev, 2860 struct device_attribute *attr, 2861 char *buf) 2862 { 2863 struct asus_wmi *asus = dev_get_drvdata(dev); 2864 2865 return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode); 2866 } 2867 2868 static ssize_t pwm2_enable_store(struct device *dev, 2869 struct device_attribute *attr, 2870 const char *buf, size_t count) 2871 { 2872 struct asus_wmi *asus = dev_get_drvdata(dev); 2873 int state; 2874 int value; 2875 int ret; 2876 u32 retval; 2877 2878 ret = kstrtouint(buf, 10, &state); 2879 if (ret) 2880 return ret; 2881 2882 switch (state) { /* standard documented hwmon values */ 2883 case ASUS_FAN_CTRL_FULLSPEED: 2884 value = 1; 2885 break; 2886 case ASUS_FAN_CTRL_AUTO: 2887 value = 0; 2888 break; 2889 default: 2890 return -EINVAL; 2891 } 2892 2893 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL, 2894 value, &retval); 2895 if (ret) 2896 return ret; 2897 2898 if (retval != 1) 2899 return -EIO; 2900 2901 asus->gpu_fan_pwm_mode = state; 2902 return count; 2903 } 2904 2905 static ssize_t pwm3_enable_show(struct device *dev, 2906 struct device_attribute *attr, 2907 char *buf) 2908 { 2909 struct asus_wmi *asus = dev_get_drvdata(dev); 2910 2911 return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode); 2912 } 2913 2914 static ssize_t pwm3_enable_store(struct device *dev, 2915 struct device_attribute *attr, 2916 const char *buf, size_t count) 2917 { 2918 struct asus_wmi *asus = dev_get_drvdata(dev); 2919 int state; 2920 int value; 2921 int ret; 2922 u32 retval; 2923 2924 ret = kstrtouint(buf, 10, &state); 2925 if (ret) 2926 return ret; 2927 2928 switch (state) { /* standard documented hwmon values */ 2929 case ASUS_FAN_CTRL_FULLSPEED: 2930 value = 1; 2931 break; 2932 case ASUS_FAN_CTRL_AUTO: 2933 value = 0; 2934 break; 2935 default: 2936 return -EINVAL; 2937 } 2938 2939 ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL, 2940 value, &retval); 2941 if (ret) 2942 return ret; 2943 2944 if (retval != 1) 2945 return -EIO; 2946 2947 asus->mid_fan_pwm_mode = state; 2948 return count; 2949 } 2950 2951 /* Fan1 */ 2952 static DEVICE_ATTR_RW(pwm1); 2953 static DEVICE_ATTR_RW(pwm1_enable); 2954 static DEVICE_ATTR_RO(fan1_input); 2955 static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC); 2956 2957 /* Fan2 - GPU fan */ 2958 static DEVICE_ATTR_RW(pwm2_enable); 2959 static DEVICE_ATTR_RO(fan2_input); 2960 static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC); 2961 /* Fan3 - Middle/center fan */ 2962 static DEVICE_ATTR_RW(pwm3_enable); 2963 static DEVICE_ATTR_RO(fan3_input); 2964 static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC); 2965 2966 /* Temperature */ 2967 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL); 2968 2969 static struct attribute *hwmon_attributes[] = { 2970 &dev_attr_pwm1.attr, 2971 &dev_attr_pwm1_enable.attr, 2972 &dev_attr_pwm2_enable.attr, 2973 &dev_attr_pwm3_enable.attr, 2974 &dev_attr_fan1_input.attr, 2975 &dev_attr_fan1_label.attr.attr, 2976 &dev_attr_fan2_input.attr, 2977 &dev_attr_fan2_label.attr.attr, 2978 &dev_attr_fan3_input.attr, 2979 &dev_attr_fan3_label.attr.attr, 2980 2981 &dev_attr_temp1_input.attr, 2982 NULL 2983 }; 2984 2985 static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj, 2986 struct attribute *attr, int idx) 2987 { 2988 struct device *dev = kobj_to_dev(kobj); 2989 struct asus_wmi *asus = dev_get_drvdata(dev->parent); 2990 u32 value = ASUS_WMI_UNSUPPORTED_METHOD; 2991 2992 if (attr == &dev_attr_pwm1.attr) { 2993 if (asus->fan_type != FAN_TYPE_AGFN) 2994 return 0; 2995 } else if (attr == &dev_attr_fan1_input.attr 2996 || attr == &dev_attr_fan1_label.attr.attr 2997 || attr == &dev_attr_pwm1_enable.attr) { 2998 if (asus->fan_type == FAN_TYPE_NONE) 2999 return 0; 3000 } else if (attr == &dev_attr_fan2_input.attr 3001 || attr == &dev_attr_fan2_label.attr.attr 3002 || attr == &dev_attr_pwm2_enable.attr) { 3003 if (asus->gpu_fan_type == FAN_TYPE_NONE) 3004 return 0; 3005 } else if (attr == &dev_attr_fan3_input.attr 3006 || attr == &dev_attr_fan3_label.attr.attr 3007 || attr == &dev_attr_pwm3_enable.attr) { 3008 if (asus->mid_fan_type == FAN_TYPE_NONE) 3009 return 0; 3010 } else if (attr == &dev_attr_temp1_input.attr) { 3011 int err = asus_wmi_get_devstate(asus, 3012 ASUS_WMI_DEVID_THERMAL_CTRL, 3013 &value); 3014 3015 if (err < 0) 3016 return 0; /* can't return negative here */ 3017 3018 /* 3019 * If the temperature value in deci-Kelvin is near the absolute 3020 * zero temperature, something is clearly wrong 3021 */ 3022 if (value == 0 || value == 1) 3023 return 0; 3024 } 3025 3026 return attr->mode; 3027 } 3028 3029 static const struct attribute_group hwmon_attribute_group = { 3030 .is_visible = asus_hwmon_sysfs_is_visible, 3031 .attrs = hwmon_attributes 3032 }; 3033 __ATTRIBUTE_GROUPS(hwmon_attribute); 3034 3035 static int asus_wmi_hwmon_init(struct asus_wmi *asus) 3036 { 3037 struct device *dev = &asus->platform_device->dev; 3038 struct device *hwmon; 3039 3040 hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus, 3041 hwmon_attribute_groups); 3042 3043 if (IS_ERR(hwmon)) { 3044 pr_err("Could not register asus hwmon device\n"); 3045 return PTR_ERR(hwmon); 3046 } 3047 return 0; 3048 } 3049 3050 static int asus_wmi_fan_init(struct asus_wmi *asus) 3051 { 3052 asus->gpu_fan_type = FAN_TYPE_NONE; 3053 asus->mid_fan_type = FAN_TYPE_NONE; 3054 asus->fan_type = FAN_TYPE_NONE; 3055 asus->agfn_pwm = -1; 3056 3057 if (asus->driver->quirks->wmi_ignore_fan) 3058 asus->fan_type = FAN_TYPE_NONE; 3059 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL)) 3060 asus->fan_type = FAN_TYPE_SPEC83; 3061 else if (asus_wmi_has_agfn_fan(asus)) 3062 asus->fan_type = FAN_TYPE_AGFN; 3063 3064 /* Modern models like G713 also have GPU fan control */ 3065 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL)) 3066 asus->gpu_fan_type = FAN_TYPE_SPEC83; 3067 3068 /* Some models also have a center/middle fan */ 3069 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL)) 3070 asus->mid_fan_type = FAN_TYPE_SPEC83; 3071 3072 if (asus->fan_type == FAN_TYPE_NONE) 3073 return -ENODEV; 3074 3075 asus_fan_set_auto(asus); 3076 asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO; 3077 return 0; 3078 } 3079 3080 /* Fan mode *******************************************************************/ 3081 3082 static int fan_boost_mode_check_present(struct asus_wmi *asus) 3083 { 3084 u32 result; 3085 int err; 3086 3087 asus->fan_boost_mode_available = false; 3088 3089 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE, 3090 &result); 3091 if (err) { 3092 if (err == -ENODEV) 3093 return 0; 3094 else 3095 return err; 3096 } 3097 3098 if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) && 3099 (result & ASUS_FAN_BOOST_MODES_MASK)) { 3100 asus->fan_boost_mode_available = true; 3101 asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK; 3102 } 3103 3104 return 0; 3105 } 3106 3107 static int fan_boost_mode_write(struct asus_wmi *asus) 3108 { 3109 u32 retval; 3110 u8 value; 3111 int err; 3112 3113 value = asus->fan_boost_mode; 3114 3115 pr_info("Set fan boost mode: %u\n", value); 3116 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value, 3117 &retval); 3118 3119 sysfs_notify(&asus->platform_device->dev.kobj, NULL, 3120 "fan_boost_mode"); 3121 3122 if (err) { 3123 pr_warn("Failed to set fan boost mode: %d\n", err); 3124 return err; 3125 } 3126 3127 if (retval != 1) { 3128 pr_warn("Failed to set fan boost mode (retval): 0x%x\n", 3129 retval); 3130 return -EIO; 3131 } 3132 3133 return 0; 3134 } 3135 3136 static int fan_boost_mode_switch_next(struct asus_wmi *asus) 3137 { 3138 u8 mask = asus->fan_boost_mode_mask; 3139 3140 if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) { 3141 if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK) 3142 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST; 3143 else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK) 3144 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT; 3145 } else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) { 3146 if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK) 3147 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT; 3148 else 3149 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL; 3150 } else { 3151 asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL; 3152 } 3153 3154 return fan_boost_mode_write(asus); 3155 } 3156 3157 static ssize_t fan_boost_mode_show(struct device *dev, 3158 struct device_attribute *attr, char *buf) 3159 { 3160 struct asus_wmi *asus = dev_get_drvdata(dev); 3161 3162 return sysfs_emit(buf, "%d\n", asus->fan_boost_mode); 3163 } 3164 3165 static ssize_t fan_boost_mode_store(struct device *dev, 3166 struct device_attribute *attr, 3167 const char *buf, size_t count) 3168 { 3169 struct asus_wmi *asus = dev_get_drvdata(dev); 3170 u8 mask = asus->fan_boost_mode_mask; 3171 u8 new_mode; 3172 int result; 3173 3174 result = kstrtou8(buf, 10, &new_mode); 3175 if (result < 0) { 3176 pr_warn("Trying to store invalid value\n"); 3177 return result; 3178 } 3179 3180 if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) { 3181 if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)) 3182 return -EINVAL; 3183 } else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) { 3184 if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)) 3185 return -EINVAL; 3186 } else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) { 3187 return -EINVAL; 3188 } 3189 3190 asus->fan_boost_mode = new_mode; 3191 fan_boost_mode_write(asus); 3192 3193 return count; 3194 } 3195 3196 // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent 3197 static DEVICE_ATTR_RW(fan_boost_mode); 3198 3199 /* Custom fan curves **********************************************************/ 3200 3201 static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf) 3202 { 3203 int i; 3204 3205 for (i = 0; i < FAN_CURVE_POINTS; i++) { 3206 data->temps[i] = buf[i]; 3207 } 3208 3209 for (i = 0; i < FAN_CURVE_POINTS; i++) { 3210 data->percents[i] = 3211 255 * buf[i + FAN_CURVE_POINTS] / 100; 3212 } 3213 } 3214 3215 static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev) 3216 { 3217 struct fan_curve_data *curves; 3218 u8 buf[FAN_CURVE_BUF_LEN]; 3219 int err, fan_idx; 3220 u8 mode = 0; 3221 3222 if (asus->throttle_thermal_policy_dev) 3223 mode = asus->throttle_thermal_policy_mode; 3224 /* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */ 3225 if (mode == 2) 3226 mode = 1; 3227 else if (mode == 1) 3228 mode = 2; 3229 3230 err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf, 3231 FAN_CURVE_BUF_LEN); 3232 if (err) { 3233 pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err); 3234 return err; 3235 } 3236 3237 fan_idx = FAN_CURVE_DEV_CPU; 3238 if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE) 3239 fan_idx = FAN_CURVE_DEV_GPU; 3240 3241 if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE) 3242 fan_idx = FAN_CURVE_DEV_MID; 3243 3244 curves = &asus->custom_fan_curves[fan_idx]; 3245 curves->device_id = fan_dev; 3246 3247 fan_curve_copy_from_buf(curves, buf); 3248 return 0; 3249 } 3250 3251 /* Check if capability exists, and populate defaults */ 3252 static int fan_curve_check_present(struct asus_wmi *asus, bool *available, 3253 u32 fan_dev) 3254 { 3255 int err; 3256 3257 *available = false; 3258 3259 if (asus->fan_type == FAN_TYPE_NONE) 3260 return 0; 3261 3262 err = fan_curve_get_factory_default(asus, fan_dev); 3263 if (err) { 3264 return 0; 3265 } 3266 3267 *available = true; 3268 return 0; 3269 } 3270 3271 /* Determine which fan the attribute is for if SENSOR_ATTR */ 3272 static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus, 3273 struct device_attribute *attr) 3274 { 3275 int index = to_sensor_dev_attr(attr)->index; 3276 3277 return &asus->custom_fan_curves[index]; 3278 } 3279 3280 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */ 3281 static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus, 3282 struct device_attribute *attr) 3283 { 3284 int nr = to_sensor_dev_attr_2(attr)->nr; 3285 3286 return &asus->custom_fan_curves[nr & ~FAN_CURVE_PWM_MASK]; 3287 } 3288 3289 static ssize_t fan_curve_show(struct device *dev, 3290 struct device_attribute *attr, char *buf) 3291 { 3292 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr); 3293 struct asus_wmi *asus = dev_get_drvdata(dev); 3294 struct fan_curve_data *data; 3295 int value, pwm, index; 3296 3297 data = fan_curve_attr_2_select(asus, attr); 3298 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK; 3299 index = dev_attr->index; 3300 3301 if (pwm) 3302 value = data->percents[index]; 3303 else 3304 value = data->temps[index]; 3305 3306 return sysfs_emit(buf, "%d\n", value); 3307 } 3308 3309 /* 3310 * "fan_dev" is the related WMI method such as ASUS_WMI_DEVID_CPU_FAN_CURVE. 3311 */ 3312 static int fan_curve_write(struct asus_wmi *asus, 3313 struct fan_curve_data *data) 3314 { 3315 u32 arg1 = 0, arg2 = 0, arg3 = 0, arg4 = 0; 3316 u8 *percents = data->percents; 3317 u8 *temps = data->temps; 3318 int ret, i, shift = 0; 3319 3320 if (!data->enabled) 3321 return 0; 3322 3323 for (i = 0; i < FAN_CURVE_POINTS / 2; i++) { 3324 arg1 += (temps[i]) << shift; 3325 arg2 += (temps[i + 4]) << shift; 3326 /* Scale to percentage for device */ 3327 arg3 += (100 * percents[i] / 255) << shift; 3328 arg4 += (100 * percents[i + 4] / 255) << shift; 3329 shift += 8; 3330 } 3331 3332 return asus_wmi_evaluate_method5(ASUS_WMI_METHODID_DEVS, 3333 data->device_id, 3334 arg1, arg2, arg3, arg4, &ret); 3335 } 3336 3337 static ssize_t fan_curve_store(struct device *dev, 3338 struct device_attribute *attr, const char *buf, 3339 size_t count) 3340 { 3341 struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr); 3342 struct asus_wmi *asus = dev_get_drvdata(dev); 3343 struct fan_curve_data *data; 3344 int err, pwm, index; 3345 u8 value; 3346 3347 data = fan_curve_attr_2_select(asus, attr); 3348 pwm = dev_attr->nr & FAN_CURVE_PWM_MASK; 3349 index = dev_attr->index; 3350 3351 err = kstrtou8(buf, 10, &value); 3352 if (err < 0) 3353 return err; 3354 3355 if (pwm) 3356 data->percents[index] = value; 3357 else 3358 data->temps[index] = value; 3359 3360 /* 3361 * Mark as disabled so the user has to explicitly enable to apply a 3362 * changed fan curve. This prevents potential lockups from writing out 3363 * many changes as one-write-per-change. 3364 */ 3365 data->enabled = false; 3366 3367 return count; 3368 } 3369 3370 static ssize_t fan_curve_enable_show(struct device *dev, 3371 struct device_attribute *attr, char *buf) 3372 { 3373 struct asus_wmi *asus = dev_get_drvdata(dev); 3374 struct fan_curve_data *data; 3375 int out = 2; 3376 3377 data = fan_curve_attr_select(asus, attr); 3378 3379 if (data->enabled) 3380 out = 1; 3381 3382 return sysfs_emit(buf, "%d\n", out); 3383 } 3384 3385 static ssize_t fan_curve_enable_store(struct device *dev, 3386 struct device_attribute *attr, 3387 const char *buf, size_t count) 3388 { 3389 struct asus_wmi *asus = dev_get_drvdata(dev); 3390 struct fan_curve_data *data; 3391 int value, err; 3392 3393 data = fan_curve_attr_select(asus, attr); 3394 3395 err = kstrtoint(buf, 10, &value); 3396 if (err < 0) 3397 return err; 3398 3399 switch (value) { 3400 case 1: 3401 data->enabled = true; 3402 break; 3403 case 2: 3404 data->enabled = false; 3405 break; 3406 /* 3407 * Auto + reset the fan curve data to defaults. Make it an explicit 3408 * option so that users don't accidentally overwrite a set fan curve. 3409 */ 3410 case 3: 3411 err = fan_curve_get_factory_default(asus, data->device_id); 3412 if (err) 3413 return err; 3414 data->enabled = false; 3415 break; 3416 default: 3417 return -EINVAL; 3418 } 3419 3420 if (data->enabled) { 3421 err = fan_curve_write(asus, data); 3422 if (err) 3423 return err; 3424 } else { 3425 /* 3426 * For machines with throttle this is the only way to reset fans 3427 * to default mode of operation (does not erase curve data). 3428 */ 3429 if (asus->throttle_thermal_policy_dev) { 3430 err = throttle_thermal_policy_write(asus); 3431 if (err) 3432 return err; 3433 /* Similar is true for laptops with this fan */ 3434 } else if (asus->fan_type == FAN_TYPE_SPEC83) { 3435 err = asus_fan_set_auto(asus); 3436 if (err) 3437 return err; 3438 } else { 3439 /* Safeguard against fautly ACPI tables */ 3440 err = fan_curve_get_factory_default(asus, data->device_id); 3441 if (err) 3442 return err; 3443 err = fan_curve_write(asus, data); 3444 if (err) 3445 return err; 3446 } 3447 } 3448 return count; 3449 } 3450 3451 /* CPU */ 3452 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, fan_curve_enable, FAN_CURVE_DEV_CPU); 3453 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, fan_curve, 3454 FAN_CURVE_DEV_CPU, 0); 3455 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, fan_curve, 3456 FAN_CURVE_DEV_CPU, 1); 3457 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, fan_curve, 3458 FAN_CURVE_DEV_CPU, 2); 3459 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, fan_curve, 3460 FAN_CURVE_DEV_CPU, 3); 3461 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, fan_curve, 3462 FAN_CURVE_DEV_CPU, 4); 3463 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, fan_curve, 3464 FAN_CURVE_DEV_CPU, 5); 3465 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, fan_curve, 3466 FAN_CURVE_DEV_CPU, 6); 3467 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve, 3468 FAN_CURVE_DEV_CPU, 7); 3469 3470 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve, 3471 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0); 3472 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve, 3473 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1); 3474 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve, 3475 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 2); 3476 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, fan_curve, 3477 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 3); 3478 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, fan_curve, 3479 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 4); 3480 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, fan_curve, 3481 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 5); 3482 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, fan_curve, 3483 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 6); 3484 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, fan_curve, 3485 FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 7); 3486 3487 /* GPU */ 3488 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, fan_curve_enable, FAN_CURVE_DEV_GPU); 3489 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, fan_curve, 3490 FAN_CURVE_DEV_GPU, 0); 3491 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, fan_curve, 3492 FAN_CURVE_DEV_GPU, 1); 3493 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, fan_curve, 3494 FAN_CURVE_DEV_GPU, 2); 3495 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, fan_curve, 3496 FAN_CURVE_DEV_GPU, 3); 3497 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, fan_curve, 3498 FAN_CURVE_DEV_GPU, 4); 3499 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, fan_curve, 3500 FAN_CURVE_DEV_GPU, 5); 3501 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, fan_curve, 3502 FAN_CURVE_DEV_GPU, 6); 3503 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, fan_curve, 3504 FAN_CURVE_DEV_GPU, 7); 3505 3506 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, fan_curve, 3507 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0); 3508 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, fan_curve, 3509 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1); 3510 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, fan_curve, 3511 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2); 3512 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, fan_curve, 3513 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3); 3514 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, fan_curve, 3515 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4); 3516 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, fan_curve, 3517 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5); 3518 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve, 3519 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6); 3520 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve, 3521 FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7); 3522 3523 /* MID */ 3524 static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_MID); 3525 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve, 3526 FAN_CURVE_DEV_MID, 0); 3527 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve, 3528 FAN_CURVE_DEV_MID, 1); 3529 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve, 3530 FAN_CURVE_DEV_MID, 2); 3531 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve, 3532 FAN_CURVE_DEV_MID, 3); 3533 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve, 3534 FAN_CURVE_DEV_MID, 4); 3535 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve, 3536 FAN_CURVE_DEV_MID, 5); 3537 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve, 3538 FAN_CURVE_DEV_MID, 6); 3539 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve, 3540 FAN_CURVE_DEV_MID, 7); 3541 3542 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve, 3543 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 0); 3544 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve, 3545 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 1); 3546 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve, 3547 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 2); 3548 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve, 3549 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 3); 3550 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve, 3551 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 4); 3552 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve, 3553 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 5); 3554 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve, 3555 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 6); 3556 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve, 3557 FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 7); 3558 3559 static struct attribute *asus_fan_curve_attr[] = { 3560 /* CPU */ 3561 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 3562 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, 3563 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, 3564 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, 3565 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, 3566 &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, 3567 &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr, 3568 &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr, 3569 &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr, 3570 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, 3571 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, 3572 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, 3573 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, 3574 &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, 3575 &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr, 3576 &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr, 3577 &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr, 3578 /* GPU */ 3579 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 3580 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, 3581 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, 3582 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, 3583 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, 3584 &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr, 3585 &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr, 3586 &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr, 3587 &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr, 3588 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, 3589 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, 3590 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, 3591 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, 3592 &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr, 3593 &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr, 3594 &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr, 3595 &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr, 3596 /* MID */ 3597 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 3598 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, 3599 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, 3600 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, 3601 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, 3602 &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr, 3603 &sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr, 3604 &sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr, 3605 &sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr, 3606 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, 3607 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, 3608 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, 3609 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, 3610 &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr, 3611 &sensor_dev_attr_pwm3_auto_point6_pwm.dev_attr.attr, 3612 &sensor_dev_attr_pwm3_auto_point7_pwm.dev_attr.attr, 3613 &sensor_dev_attr_pwm3_auto_point8_pwm.dev_attr.attr, 3614 NULL 3615 }; 3616 3617 static umode_t asus_fan_curve_is_visible(struct kobject *kobj, 3618 struct attribute *attr, int idx) 3619 { 3620 struct device *dev = kobj_to_dev(kobj); 3621 struct asus_wmi *asus = dev_get_drvdata(dev->parent); 3622 3623 /* 3624 * Check the char instead of casting attr as there are two attr types 3625 * involved here (attr1 and attr2) 3626 */ 3627 if (asus->cpu_fan_curve_available && attr->name[3] == '1') 3628 return 0644; 3629 3630 if (asus->gpu_fan_curve_available && attr->name[3] == '2') 3631 return 0644; 3632 3633 if (asus->mid_fan_curve_available && attr->name[3] == '3') 3634 return 0644; 3635 3636 return 0; 3637 } 3638 3639 static const struct attribute_group asus_fan_curve_attr_group = { 3640 .is_visible = asus_fan_curve_is_visible, 3641 .attrs = asus_fan_curve_attr, 3642 }; 3643 __ATTRIBUTE_GROUPS(asus_fan_curve_attr); 3644 3645 /* 3646 * Must be initialised after throttle_thermal_policy_dev is set as 3647 * we check the status of throttle_thermal_policy_dev during init. 3648 */ 3649 static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus) 3650 { 3651 struct device *dev = &asus->platform_device->dev; 3652 struct device *hwmon; 3653 int err; 3654 3655 err = fan_curve_check_present(asus, &asus->cpu_fan_curve_available, 3656 ASUS_WMI_DEVID_CPU_FAN_CURVE); 3657 if (err) { 3658 pr_debug("%s, checked 0x%08x, failed: %d\n", 3659 __func__, ASUS_WMI_DEVID_CPU_FAN_CURVE, err); 3660 return err; 3661 } 3662 3663 err = fan_curve_check_present(asus, &asus->gpu_fan_curve_available, 3664 ASUS_WMI_DEVID_GPU_FAN_CURVE); 3665 if (err) { 3666 pr_debug("%s, checked 0x%08x, failed: %d\n", 3667 __func__, ASUS_WMI_DEVID_GPU_FAN_CURVE, err); 3668 return err; 3669 } 3670 3671 err = fan_curve_check_present(asus, &asus->mid_fan_curve_available, 3672 ASUS_WMI_DEVID_MID_FAN_CURVE); 3673 if (err) { 3674 pr_debug("%s, checked 0x%08x, failed: %d\n", 3675 __func__, ASUS_WMI_DEVID_MID_FAN_CURVE, err); 3676 return err; 3677 } 3678 3679 if (!asus->cpu_fan_curve_available 3680 && !asus->gpu_fan_curve_available 3681 && !asus->mid_fan_curve_available) 3682 return 0; 3683 3684 hwmon = devm_hwmon_device_register_with_groups( 3685 dev, "asus_custom_fan_curve", asus, asus_fan_curve_attr_groups); 3686 3687 if (IS_ERR(hwmon)) { 3688 dev_err(dev, 3689 "Could not register asus_custom_fan_curve device\n"); 3690 return PTR_ERR(hwmon); 3691 } 3692 3693 return 0; 3694 } 3695 3696 /* Throttle thermal policy ****************************************************/ 3697 static int throttle_thermal_policy_write(struct asus_wmi *asus) 3698 { 3699 u32 retval; 3700 u8 value; 3701 int err; 3702 3703 if (asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO) { 3704 switch (asus->throttle_thermal_policy_mode) { 3705 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT: 3706 value = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO; 3707 break; 3708 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST: 3709 value = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO; 3710 break; 3711 case ASUS_THROTTLE_THERMAL_POLICY_SILENT: 3712 value = ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO; 3713 break; 3714 default: 3715 return -EINVAL; 3716 } 3717 } else { 3718 value = asus->throttle_thermal_policy_mode; 3719 } 3720 3721 err = asus_wmi_set_devstate(asus->throttle_thermal_policy_dev, 3722 value, &retval); 3723 3724 sysfs_notify(&asus->platform_device->dev.kobj, NULL, 3725 "throttle_thermal_policy"); 3726 3727 if (err) { 3728 pr_warn("Failed to set throttle thermal policy: %d\n", err); 3729 return err; 3730 } 3731 3732 if (retval != 1) { 3733 pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n", 3734 retval); 3735 return -EIO; 3736 } 3737 3738 /* Must set to disabled if mode is toggled */ 3739 if (asus->cpu_fan_curve_available) 3740 asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false; 3741 if (asus->gpu_fan_curve_available) 3742 asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false; 3743 if (asus->mid_fan_curve_available) 3744 asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false; 3745 3746 return 0; 3747 } 3748 3749 static int throttle_thermal_policy_set_default(struct asus_wmi *asus) 3750 { 3751 if (!asus->throttle_thermal_policy_dev) 3752 return 0; 3753 3754 asus->throttle_thermal_policy_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT; 3755 return throttle_thermal_policy_write(asus); 3756 } 3757 3758 static ssize_t throttle_thermal_policy_show(struct device *dev, 3759 struct device_attribute *attr, char *buf) 3760 { 3761 struct asus_wmi *asus = dev_get_drvdata(dev); 3762 u8 mode = asus->throttle_thermal_policy_mode; 3763 3764 return sysfs_emit(buf, "%d\n", mode); 3765 } 3766 3767 static ssize_t throttle_thermal_policy_store(struct device *dev, 3768 struct device_attribute *attr, 3769 const char *buf, size_t count) 3770 { 3771 struct asus_wmi *asus = dev_get_drvdata(dev); 3772 u8 new_mode; 3773 int result; 3774 int err; 3775 3776 result = kstrtou8(buf, 10, &new_mode); 3777 if (result < 0) 3778 return result; 3779 3780 if (new_mode > PLATFORM_PROFILE_MAX) 3781 return -EINVAL; 3782 3783 asus->throttle_thermal_policy_mode = new_mode; 3784 err = throttle_thermal_policy_write(asus); 3785 if (err) 3786 return err; 3787 3788 /* 3789 * Ensure that platform_profile updates userspace with the change to ensure 3790 * that platform_profile and throttle_thermal_policy_mode are in sync. 3791 */ 3792 platform_profile_notify(); 3793 3794 return count; 3795 } 3796 3797 /* 3798 * Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent 3799 */ 3800 static DEVICE_ATTR_RW(throttle_thermal_policy); 3801 3802 /* Platform profile ***********************************************************/ 3803 static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof, 3804 enum platform_profile_option *profile) 3805 { 3806 struct asus_wmi *asus; 3807 int tp; 3808 3809 asus = container_of(pprof, struct asus_wmi, platform_profile_handler); 3810 tp = asus->throttle_thermal_policy_mode; 3811 3812 switch (tp) { 3813 case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT: 3814 *profile = PLATFORM_PROFILE_BALANCED; 3815 break; 3816 case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST: 3817 *profile = PLATFORM_PROFILE_PERFORMANCE; 3818 break; 3819 case ASUS_THROTTLE_THERMAL_POLICY_SILENT: 3820 *profile = PLATFORM_PROFILE_QUIET; 3821 break; 3822 default: 3823 return -EINVAL; 3824 } 3825 3826 return 0; 3827 } 3828 3829 static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof, 3830 enum platform_profile_option profile) 3831 { 3832 struct asus_wmi *asus; 3833 int tp; 3834 3835 asus = container_of(pprof, struct asus_wmi, platform_profile_handler); 3836 3837 switch (profile) { 3838 case PLATFORM_PROFILE_PERFORMANCE: 3839 tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST; 3840 break; 3841 case PLATFORM_PROFILE_BALANCED: 3842 tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT; 3843 break; 3844 case PLATFORM_PROFILE_QUIET: 3845 tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT; 3846 break; 3847 default: 3848 return -EOPNOTSUPP; 3849 } 3850 3851 asus->throttle_thermal_policy_mode = tp; 3852 return throttle_thermal_policy_write(asus); 3853 } 3854 3855 static int platform_profile_setup(struct asus_wmi *asus) 3856 { 3857 struct device *dev = &asus->platform_device->dev; 3858 int err; 3859 3860 /* 3861 * Not an error if a component platform_profile relies on is unavailable 3862 * so early return, skipping the setup of platform_profile. 3863 */ 3864 if (!asus->throttle_thermal_policy_dev) 3865 return 0; 3866 3867 /* 3868 * We need to set the default thermal profile during probe or otherwise 3869 * the system will often remain in silent mode, causing low performance. 3870 */ 3871 err = throttle_thermal_policy_set_default(asus); 3872 if (err < 0) { 3873 pr_warn("Failed to set default thermal profile\n"); 3874 return err; 3875 } 3876 3877 dev_info(dev, "Using throttle_thermal_policy for platform_profile support\n"); 3878 3879 asus->platform_profile_handler.profile_get = asus_wmi_platform_profile_get; 3880 asus->platform_profile_handler.profile_set = asus_wmi_platform_profile_set; 3881 3882 set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices); 3883 set_bit(PLATFORM_PROFILE_BALANCED, 3884 asus->platform_profile_handler.choices); 3885 set_bit(PLATFORM_PROFILE_PERFORMANCE, 3886 asus->platform_profile_handler.choices); 3887 3888 err = platform_profile_register(&asus->platform_profile_handler); 3889 if (err == -EEXIST) { 3890 pr_warn("%s, a platform_profile handler is already registered\n", __func__); 3891 return 0; 3892 } else if (err) { 3893 pr_err("%s, failed at platform_profile_register: %d\n", __func__, err); 3894 return err; 3895 } 3896 3897 asus->platform_profile_support = true; 3898 return 0; 3899 } 3900 3901 /* Backlight ******************************************************************/ 3902 3903 static int read_backlight_power(struct asus_wmi *asus) 3904 { 3905 int ret; 3906 3907 if (asus->driver->quirks->store_backlight_power) 3908 ret = !asus->driver->panel_power; 3909 else 3910 ret = asus_wmi_get_devstate_simple(asus, 3911 ASUS_WMI_DEVID_BACKLIGHT); 3912 3913 if (ret < 0) 3914 return ret; 3915 3916 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF; 3917 } 3918 3919 static int read_brightness_max(struct asus_wmi *asus) 3920 { 3921 u32 retval; 3922 int err; 3923 3924 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval); 3925 if (err < 0) 3926 return err; 3927 3928 retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK; 3929 retval >>= 8; 3930 3931 if (!retval) 3932 return -ENODEV; 3933 3934 return retval; 3935 } 3936 3937 static int read_brightness(struct backlight_device *bd) 3938 { 3939 struct asus_wmi *asus = bl_get_data(bd); 3940 u32 retval; 3941 int err; 3942 3943 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval); 3944 if (err < 0) 3945 return err; 3946 3947 return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK; 3948 } 3949 3950 static u32 get_scalar_command(struct backlight_device *bd) 3951 { 3952 struct asus_wmi *asus = bl_get_data(bd); 3953 u32 ctrl_param = 0; 3954 3955 if ((asus->driver->brightness < bd->props.brightness) || 3956 bd->props.brightness == bd->props.max_brightness) 3957 ctrl_param = 0x00008001; 3958 else if ((asus->driver->brightness > bd->props.brightness) || 3959 bd->props.brightness == 0) 3960 ctrl_param = 0x00008000; 3961 3962 asus->driver->brightness = bd->props.brightness; 3963 3964 return ctrl_param; 3965 } 3966 3967 static int update_bl_status(struct backlight_device *bd) 3968 { 3969 struct asus_wmi *asus = bl_get_data(bd); 3970 u32 ctrl_param; 3971 int power, err = 0; 3972 3973 power = read_backlight_power(asus); 3974 if (power != -ENODEV && bd->props.power != power) { 3975 ctrl_param = !!(bd->props.power == BACKLIGHT_POWER_ON); 3976 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 3977 ctrl_param, NULL); 3978 if (asus->driver->quirks->store_backlight_power) 3979 asus->driver->panel_power = bd->props.power; 3980 3981 /* When using scalar brightness, updating the brightness 3982 * will mess with the backlight power */ 3983 if (asus->driver->quirks->scalar_panel_brightness) 3984 return err; 3985 } 3986 3987 if (asus->driver->quirks->scalar_panel_brightness) 3988 ctrl_param = get_scalar_command(bd); 3989 else 3990 ctrl_param = bd->props.brightness; 3991 3992 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS, 3993 ctrl_param, NULL); 3994 3995 return err; 3996 } 3997 3998 static const struct backlight_ops asus_wmi_bl_ops = { 3999 .get_brightness = read_brightness, 4000 .update_status = update_bl_status, 4001 }; 4002 4003 static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code) 4004 { 4005 struct backlight_device *bd = asus->backlight_device; 4006 int old = bd->props.brightness; 4007 int new = old; 4008 4009 if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX) 4010 new = code - NOTIFY_BRNUP_MIN + 1; 4011 else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX) 4012 new = code - NOTIFY_BRNDOWN_MIN; 4013 4014 bd->props.brightness = new; 4015 backlight_update_status(bd); 4016 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); 4017 4018 return old; 4019 } 4020 4021 static int asus_wmi_backlight_init(struct asus_wmi *asus) 4022 { 4023 struct backlight_device *bd; 4024 struct backlight_properties props; 4025 int max; 4026 int power; 4027 4028 max = read_brightness_max(asus); 4029 if (max < 0) 4030 return max; 4031 4032 power = read_backlight_power(asus); 4033 if (power == -ENODEV) 4034 power = BACKLIGHT_POWER_ON; 4035 else if (power < 0) 4036 return power; 4037 4038 memset(&props, 0, sizeof(struct backlight_properties)); 4039 props.type = BACKLIGHT_PLATFORM; 4040 props.max_brightness = max; 4041 bd = backlight_device_register(asus->driver->name, 4042 &asus->platform_device->dev, asus, 4043 &asus_wmi_bl_ops, &props); 4044 if (IS_ERR(bd)) { 4045 pr_err("Could not register backlight device\n"); 4046 return PTR_ERR(bd); 4047 } 4048 4049 asus->backlight_device = bd; 4050 4051 if (asus->driver->quirks->store_backlight_power) 4052 asus->driver->panel_power = power; 4053 4054 bd->props.brightness = read_brightness(bd); 4055 bd->props.power = power; 4056 backlight_update_status(bd); 4057 4058 asus->driver->brightness = bd->props.brightness; 4059 4060 return 0; 4061 } 4062 4063 static void asus_wmi_backlight_exit(struct asus_wmi *asus) 4064 { 4065 backlight_device_unregister(asus->backlight_device); 4066 4067 asus->backlight_device = NULL; 4068 } 4069 4070 static int is_display_toggle(int code) 4071 { 4072 /* display toggle keys */ 4073 if ((code >= 0x61 && code <= 0x67) || 4074 (code >= 0x8c && code <= 0x93) || 4075 (code >= 0xa0 && code <= 0xa7) || 4076 (code >= 0xd0 && code <= 0xd5)) 4077 return 1; 4078 4079 return 0; 4080 } 4081 4082 /* Screenpad backlight *******************************************************/ 4083 4084 static int read_screenpad_backlight_power(struct asus_wmi *asus) 4085 { 4086 int ret; 4087 4088 ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER); 4089 if (ret < 0) 4090 return ret; 4091 /* 1 == powered */ 4092 return ret ? BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF; 4093 } 4094 4095 static int read_screenpad_brightness(struct backlight_device *bd) 4096 { 4097 struct asus_wmi *asus = bl_get_data(bd); 4098 u32 retval; 4099 int err; 4100 4101 err = read_screenpad_backlight_power(asus); 4102 if (err < 0) 4103 return err; 4104 /* The device brightness can only be read if powered, so return stored */ 4105 if (err == BACKLIGHT_POWER_OFF) 4106 return asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN; 4107 4108 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval); 4109 if (err < 0) 4110 return err; 4111 4112 return (retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK) - ASUS_SCREENPAD_BRIGHT_MIN; 4113 } 4114 4115 static int update_screenpad_bl_status(struct backlight_device *bd) 4116 { 4117 struct asus_wmi *asus = bl_get_data(bd); 4118 int power, err = 0; 4119 u32 ctrl_param; 4120 4121 power = read_screenpad_backlight_power(asus); 4122 if (power < 0) 4123 return power; 4124 4125 if (bd->props.power != power) { 4126 if (power != BACKLIGHT_POWER_ON) { 4127 /* Only brightness > 0 can power it back on */ 4128 ctrl_param = asus->driver->screenpad_brightness - ASUS_SCREENPAD_BRIGHT_MIN; 4129 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, 4130 ctrl_param, NULL); 4131 } else { 4132 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL); 4133 } 4134 } else if (power == BACKLIGHT_POWER_ON) { 4135 /* Only set brightness if powered on or we get invalid/unsync state */ 4136 ctrl_param = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN; 4137 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL); 4138 } 4139 4140 /* Ensure brightness is stored to turn back on with */ 4141 if (err == 0) 4142 asus->driver->screenpad_brightness = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN; 4143 4144 return err; 4145 } 4146 4147 static const struct backlight_ops asus_screenpad_bl_ops = { 4148 .get_brightness = read_screenpad_brightness, 4149 .update_status = update_screenpad_bl_status, 4150 .options = BL_CORE_SUSPENDRESUME, 4151 }; 4152 4153 static int asus_screenpad_init(struct asus_wmi *asus) 4154 { 4155 struct backlight_device *bd; 4156 struct backlight_properties props; 4157 int err, power; 4158 int brightness = 0; 4159 4160 power = read_screenpad_backlight_power(asus); 4161 if (power < 0) 4162 return power; 4163 4164 if (power != BACKLIGHT_POWER_OFF) { 4165 err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &brightness); 4166 if (err < 0) 4167 return err; 4168 } 4169 /* default to an acceptable min brightness on boot if too low */ 4170 if (brightness < ASUS_SCREENPAD_BRIGHT_MIN) 4171 brightness = ASUS_SCREENPAD_BRIGHT_DEFAULT; 4172 4173 memset(&props, 0, sizeof(struct backlight_properties)); 4174 props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */ 4175 props.max_brightness = ASUS_SCREENPAD_BRIGHT_MAX - ASUS_SCREENPAD_BRIGHT_MIN; 4176 bd = backlight_device_register("asus_screenpad", 4177 &asus->platform_device->dev, asus, 4178 &asus_screenpad_bl_ops, &props); 4179 if (IS_ERR(bd)) { 4180 pr_err("Could not register backlight device\n"); 4181 return PTR_ERR(bd); 4182 } 4183 4184 asus->screenpad_backlight_device = bd; 4185 asus->driver->screenpad_brightness = brightness; 4186 bd->props.brightness = brightness - ASUS_SCREENPAD_BRIGHT_MIN; 4187 bd->props.power = power; 4188 backlight_update_status(bd); 4189 4190 return 0; 4191 } 4192 4193 static void asus_screenpad_exit(struct asus_wmi *asus) 4194 { 4195 backlight_device_unregister(asus->screenpad_backlight_device); 4196 4197 asus->screenpad_backlight_device = NULL; 4198 } 4199 4200 /* Fn-lock ********************************************************************/ 4201 4202 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus) 4203 { 4204 u32 result; 4205 4206 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result); 4207 4208 return (result & ASUS_WMI_DSTS_PRESENCE_BIT) && 4209 !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED); 4210 } 4211 4212 static void asus_wmi_fnlock_update(struct asus_wmi *asus) 4213 { 4214 int mode = asus->fnlock_locked; 4215 4216 asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL); 4217 } 4218 4219 /* WMI events *****************************************************************/ 4220 4221 static int asus_wmi_get_event_code(union acpi_object *obj) 4222 { 4223 int code; 4224 4225 if (obj && obj->type == ACPI_TYPE_INTEGER) 4226 code = (int)(obj->integer.value & WMI_EVENT_MASK); 4227 else 4228 code = -EIO; 4229 4230 return code; 4231 } 4232 4233 static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus) 4234 { 4235 unsigned int key_value = 1; 4236 bool autorelease = 1; 4237 4238 if (asus->driver->key_filter) { 4239 asus->driver->key_filter(asus->driver, &code, &key_value, 4240 &autorelease); 4241 if (code == ASUS_WMI_KEY_IGNORE) 4242 return; 4243 } 4244 4245 if (acpi_video_get_backlight_type() == acpi_backlight_vendor && 4246 code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNDOWN_MAX) { 4247 asus_wmi_backlight_notify(asus, code); 4248 return; 4249 } 4250 4251 if (code == NOTIFY_KBD_BRTUP) { 4252 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1); 4253 return; 4254 } 4255 if (code == NOTIFY_KBD_BRTDWN) { 4256 kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1); 4257 return; 4258 } 4259 if (code == NOTIFY_KBD_BRTTOGGLE) { 4260 if (asus->kbd_led_wk == asus->kbd_led.max_brightness) 4261 kbd_led_set_by_kbd(asus, 0); 4262 else 4263 kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1); 4264 return; 4265 } 4266 4267 if (code == NOTIFY_FNLOCK_TOGGLE) { 4268 asus->fnlock_locked = !asus->fnlock_locked; 4269 asus_wmi_fnlock_update(asus); 4270 return; 4271 } 4272 4273 if (code == asus->tablet_switch_event_code) { 4274 asus_wmi_tablet_mode_get_state(asus); 4275 return; 4276 } 4277 4278 if (code == NOTIFY_KBD_FBM || code == NOTIFY_KBD_TTP) { 4279 if (asus->fan_boost_mode_available) 4280 fan_boost_mode_switch_next(asus); 4281 if (asus->throttle_thermal_policy_dev) 4282 platform_profile_cycle(); 4283 return; 4284 4285 } 4286 4287 if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle) 4288 return; 4289 4290 if (!sparse_keymap_report_event(asus->inputdev, code, 4291 key_value, autorelease)) 4292 pr_info("Unknown key code 0x%x\n", code); 4293 } 4294 4295 static void asus_wmi_notify(union acpi_object *obj, void *context) 4296 { 4297 struct asus_wmi *asus = context; 4298 int code = asus_wmi_get_event_code(obj); 4299 4300 if (code < 0) { 4301 pr_warn("Failed to get notify code: %d\n", code); 4302 return; 4303 } 4304 4305 asus_wmi_handle_event_code(code, asus); 4306 } 4307 4308 /* Sysfs **********************************************************************/ 4309 4310 static ssize_t store_sys_wmi(struct asus_wmi *asus, int devid, 4311 const char *buf, size_t count) 4312 { 4313 u32 retval; 4314 int err, value; 4315 4316 value = asus_wmi_get_devstate_simple(asus, devid); 4317 if (value < 0) 4318 return value; 4319 4320 err = kstrtoint(buf, 0, &value); 4321 if (err) 4322 return err; 4323 4324 err = asus_wmi_set_devstate(devid, value, &retval); 4325 if (err < 0) 4326 return err; 4327 4328 return count; 4329 } 4330 4331 static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf) 4332 { 4333 int value = asus_wmi_get_devstate_simple(asus, devid); 4334 4335 if (value < 0) 4336 return value; 4337 4338 return sysfs_emit(buf, "%d\n", value); 4339 } 4340 4341 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \ 4342 static ssize_t show_##_name(struct device *dev, \ 4343 struct device_attribute *attr, \ 4344 char *buf) \ 4345 { \ 4346 struct asus_wmi *asus = dev_get_drvdata(dev); \ 4347 \ 4348 return show_sys_wmi(asus, _cm, buf); \ 4349 } \ 4350 static ssize_t store_##_name(struct device *dev, \ 4351 struct device_attribute *attr, \ 4352 const char *buf, size_t count) \ 4353 { \ 4354 struct asus_wmi *asus = dev_get_drvdata(dev); \ 4355 \ 4356 return store_sys_wmi(asus, _cm, buf, count); \ 4357 } \ 4358 static struct device_attribute dev_attr_##_name = { \ 4359 .attr = { \ 4360 .name = __stringify(_name), \ 4361 .mode = _mode }, \ 4362 .show = show_##_name, \ 4363 .store = store_##_name, \ 4364 } 4365 4366 ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD); 4367 ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA); 4368 ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER); 4369 ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME); 4370 ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE); 4371 4372 static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr, 4373 const char *buf, size_t count) 4374 { 4375 int value, rv; 4376 4377 rv = kstrtoint(buf, 0, &value); 4378 if (rv) 4379 return rv; 4380 4381 if (value < 0 || value > 2) 4382 return -EINVAL; 4383 4384 rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL); 4385 if (rv < 0) 4386 return rv; 4387 4388 return count; 4389 } 4390 4391 static DEVICE_ATTR_WO(cpufv); 4392 4393 static struct attribute *platform_attributes[] = { 4394 &dev_attr_cpufv.attr, 4395 &dev_attr_camera.attr, 4396 &dev_attr_cardr.attr, 4397 &dev_attr_touchpad.attr, 4398 &dev_attr_charge_mode.attr, 4399 &dev_attr_egpu_enable.attr, 4400 &dev_attr_egpu_connected.attr, 4401 &dev_attr_dgpu_disable.attr, 4402 &dev_attr_gpu_mux_mode.attr, 4403 &dev_attr_lid_resume.attr, 4404 &dev_attr_als_enable.attr, 4405 &dev_attr_fan_boost_mode.attr, 4406 &dev_attr_throttle_thermal_policy.attr, 4407 &dev_attr_ppt_pl2_sppt.attr, 4408 &dev_attr_ppt_pl1_spl.attr, 4409 &dev_attr_ppt_fppt.attr, 4410 &dev_attr_ppt_apu_sppt.attr, 4411 &dev_attr_ppt_platform_sppt.attr, 4412 &dev_attr_nv_dynamic_boost.attr, 4413 &dev_attr_nv_temp_target.attr, 4414 &dev_attr_mcu_powersave.attr, 4415 &dev_attr_boot_sound.attr, 4416 &dev_attr_panel_od.attr, 4417 &dev_attr_mini_led_mode.attr, 4418 &dev_attr_available_mini_led_mode.attr, 4419 NULL 4420 }; 4421 4422 static umode_t asus_sysfs_is_visible(struct kobject *kobj, 4423 struct attribute *attr, int idx) 4424 { 4425 struct device *dev = kobj_to_dev(kobj); 4426 struct asus_wmi *asus = dev_get_drvdata(dev); 4427 bool ok = true; 4428 int devid = -1; 4429 4430 if (attr == &dev_attr_camera.attr) 4431 devid = ASUS_WMI_DEVID_CAMERA; 4432 else if (attr == &dev_attr_cardr.attr) 4433 devid = ASUS_WMI_DEVID_CARDREADER; 4434 else if (attr == &dev_attr_touchpad.attr) 4435 devid = ASUS_WMI_DEVID_TOUCHPAD; 4436 else if (attr == &dev_attr_lid_resume.attr) 4437 devid = ASUS_WMI_DEVID_LID_RESUME; 4438 else if (attr == &dev_attr_als_enable.attr) 4439 devid = ASUS_WMI_DEVID_ALS_ENABLE; 4440 else if (attr == &dev_attr_charge_mode.attr) 4441 devid = ASUS_WMI_DEVID_CHARGE_MODE; 4442 else if (attr == &dev_attr_egpu_enable.attr) 4443 ok = asus->egpu_enable_available; 4444 else if (attr == &dev_attr_egpu_connected.attr) 4445 devid = ASUS_WMI_DEVID_EGPU_CONNECTED; 4446 else if (attr == &dev_attr_dgpu_disable.attr) 4447 ok = asus->dgpu_disable_available; 4448 else if (attr == &dev_attr_gpu_mux_mode.attr) 4449 ok = asus->gpu_mux_dev != 0; 4450 else if (attr == &dev_attr_fan_boost_mode.attr) 4451 ok = asus->fan_boost_mode_available; 4452 else if (attr == &dev_attr_throttle_thermal_policy.attr) 4453 ok = asus->throttle_thermal_policy_dev != 0; 4454 else if (attr == &dev_attr_ppt_pl2_sppt.attr) 4455 devid = ASUS_WMI_DEVID_PPT_PL2_SPPT; 4456 else if (attr == &dev_attr_ppt_pl1_spl.attr) 4457 devid = ASUS_WMI_DEVID_PPT_PL1_SPL; 4458 else if (attr == &dev_attr_ppt_fppt.attr) 4459 devid = ASUS_WMI_DEVID_PPT_FPPT; 4460 else if (attr == &dev_attr_ppt_apu_sppt.attr) 4461 devid = ASUS_WMI_DEVID_PPT_APU_SPPT; 4462 else if (attr == &dev_attr_ppt_platform_sppt.attr) 4463 devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT; 4464 else if (attr == &dev_attr_nv_dynamic_boost.attr) 4465 devid = ASUS_WMI_DEVID_NV_DYN_BOOST; 4466 else if (attr == &dev_attr_nv_temp_target.attr) 4467 devid = ASUS_WMI_DEVID_NV_THERM_TARGET; 4468 else if (attr == &dev_attr_mcu_powersave.attr) 4469 devid = ASUS_WMI_DEVID_MCU_POWERSAVE; 4470 else if (attr == &dev_attr_boot_sound.attr) 4471 devid = ASUS_WMI_DEVID_BOOT_SOUND; 4472 else if (attr == &dev_attr_panel_od.attr) 4473 devid = ASUS_WMI_DEVID_PANEL_OD; 4474 else if (attr == &dev_attr_mini_led_mode.attr) 4475 ok = asus->mini_led_dev_id != 0; 4476 else if (attr == &dev_attr_available_mini_led_mode.attr) 4477 ok = asus->mini_led_dev_id != 0; 4478 4479 if (devid != -1) { 4480 ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0); 4481 pr_debug("%s called 0x%08x, ok: %x\n", __func__, devid, ok); 4482 } 4483 4484 return ok ? attr->mode : 0; 4485 } 4486 4487 static const struct attribute_group platform_attribute_group = { 4488 .is_visible = asus_sysfs_is_visible, 4489 .attrs = platform_attributes 4490 }; 4491 4492 static void asus_wmi_sysfs_exit(struct platform_device *device) 4493 { 4494 sysfs_remove_group(&device->dev.kobj, &platform_attribute_group); 4495 } 4496 4497 static int asus_wmi_sysfs_init(struct platform_device *device) 4498 { 4499 return sysfs_create_group(&device->dev.kobj, &platform_attribute_group); 4500 } 4501 4502 /* Platform device ************************************************************/ 4503 4504 static int asus_wmi_platform_init(struct asus_wmi *asus) 4505 { 4506 struct device *dev = &asus->platform_device->dev; 4507 char *wmi_uid; 4508 int rv; 4509 4510 /* INIT enable hotkeys on some models */ 4511 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv)) 4512 pr_info("Initialization: %#x\n", rv); 4513 4514 /* We don't know yet what to do with this version... */ 4515 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) { 4516 pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF); 4517 asus->spec = rv; 4518 } 4519 4520 /* 4521 * The SFUN method probably allows the original driver to get the list 4522 * of features supported by a given model. For now, 0x0100 or 0x0800 4523 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. 4524 * The significance of others is yet to be found. 4525 */ 4526 if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) { 4527 pr_info("SFUN value: %#x\n", rv); 4528 asus->sfun = rv; 4529 } 4530 4531 /* 4532 * Eee PC and Notebooks seems to have different method_id for DSTS, 4533 * but it may also be related to the BIOS's SPEC. 4534 * Note, on most Eeepc, there is no way to check if a method exist 4535 * or note, while on notebooks, they returns 0xFFFFFFFE on failure, 4536 * but once again, SPEC may probably be used for that kind of things. 4537 * 4538 * Additionally at least TUF Gaming series laptops return nothing for 4539 * unknown methods, so the detection in this way is not possible. 4540 * 4541 * There is strong indication that only ACPI WMI devices that have _UID 4542 * equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS. 4543 */ 4544 wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID); 4545 if (!wmi_uid) 4546 return -ENODEV; 4547 4548 if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) { 4549 dev_info(dev, "Detected ASUSWMI, use DCTS\n"); 4550 asus->dsts_id = ASUS_WMI_METHODID_DCTS; 4551 } else { 4552 dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid); 4553 asus->dsts_id = ASUS_WMI_METHODID_DSTS; 4554 } 4555 4556 /* CWAP allow to define the behavior of the Fn+F2 key, 4557 * this method doesn't seems to be present on Eee PCs */ 4558 if (asus->driver->quirks->wapf >= 0) 4559 asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP, 4560 asus->driver->quirks->wapf, NULL); 4561 4562 return 0; 4563 } 4564 4565 /* debugfs ********************************************************************/ 4566 4567 struct asus_wmi_debugfs_node { 4568 struct asus_wmi *asus; 4569 char *name; 4570 int (*show) (struct seq_file *m, void *data); 4571 }; 4572 4573 static int show_dsts(struct seq_file *m, void *data) 4574 { 4575 struct asus_wmi *asus = m->private; 4576 int err; 4577 u32 retval = -1; 4578 4579 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval); 4580 if (err < 0) 4581 return err; 4582 4583 seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval); 4584 4585 return 0; 4586 } 4587 4588 static int show_devs(struct seq_file *m, void *data) 4589 { 4590 struct asus_wmi *asus = m->private; 4591 int err; 4592 u32 retval = -1; 4593 4594 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param, 4595 &retval); 4596 if (err < 0) 4597 return err; 4598 4599 seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id, 4600 asus->debug.ctrl_param, retval); 4601 4602 return 0; 4603 } 4604 4605 static int show_call(struct seq_file *m, void *data) 4606 { 4607 struct asus_wmi *asus = m->private; 4608 struct bios_args args = { 4609 .arg0 = asus->debug.dev_id, 4610 .arg1 = asus->debug.ctrl_param, 4611 }; 4612 struct acpi_buffer input = { (acpi_size) sizeof(args), &args }; 4613 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; 4614 union acpi_object *obj; 4615 acpi_status status; 4616 4617 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 4618 0, asus->debug.method_id, 4619 &input, &output); 4620 4621 if (ACPI_FAILURE(status)) 4622 return -EIO; 4623 4624 obj = (union acpi_object *)output.pointer; 4625 if (obj && obj->type == ACPI_TYPE_INTEGER) 4626 seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id, 4627 asus->debug.dev_id, asus->debug.ctrl_param, 4628 (u32) obj->integer.value); 4629 else 4630 seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id, 4631 asus->debug.dev_id, asus->debug.ctrl_param, 4632 obj ? obj->type : -1); 4633 4634 kfree(obj); 4635 4636 return 0; 4637 } 4638 4639 static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = { 4640 {NULL, "devs", show_devs}, 4641 {NULL, "dsts", show_dsts}, 4642 {NULL, "call", show_call}, 4643 }; 4644 4645 static int asus_wmi_debugfs_open(struct inode *inode, struct file *file) 4646 { 4647 struct asus_wmi_debugfs_node *node = inode->i_private; 4648 4649 return single_open(file, node->show, node->asus); 4650 } 4651 4652 static const struct file_operations asus_wmi_debugfs_io_ops = { 4653 .owner = THIS_MODULE, 4654 .open = asus_wmi_debugfs_open, 4655 .read = seq_read, 4656 .llseek = seq_lseek, 4657 .release = single_release, 4658 }; 4659 4660 static void asus_wmi_debugfs_exit(struct asus_wmi *asus) 4661 { 4662 debugfs_remove_recursive(asus->debug.root); 4663 } 4664 4665 static void asus_wmi_debugfs_init(struct asus_wmi *asus) 4666 { 4667 int i; 4668 4669 asus->debug.root = debugfs_create_dir(asus->driver->name, NULL); 4670 4671 debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root, 4672 &asus->debug.method_id); 4673 4674 debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root, 4675 &asus->debug.dev_id); 4676 4677 debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root, 4678 &asus->debug.ctrl_param); 4679 4680 for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) { 4681 struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i]; 4682 4683 node->asus = asus; 4684 debugfs_create_file(node->name, S_IFREG | S_IRUGO, 4685 asus->debug.root, node, 4686 &asus_wmi_debugfs_io_ops); 4687 } 4688 } 4689 4690 /* Init / exit ****************************************************************/ 4691 4692 static int asus_wmi_add(struct platform_device *pdev) 4693 { 4694 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); 4695 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); 4696 struct asus_wmi *asus; 4697 acpi_status status; 4698 int err; 4699 u32 result; 4700 4701 asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL); 4702 if (!asus) 4703 return -ENOMEM; 4704 4705 asus->driver = wdrv; 4706 asus->platform_device = pdev; 4707 wdrv->platform_device = pdev; 4708 platform_set_drvdata(asus->platform_device, asus); 4709 4710 if (wdrv->detect_quirks) 4711 wdrv->detect_quirks(asus->driver); 4712 4713 err = asus_wmi_platform_init(asus); 4714 if (err) 4715 goto fail_platform; 4716 4717 /* ensure defaults for tunables */ 4718 asus->ppt_pl2_sppt = 5; 4719 asus->ppt_pl1_spl = 5; 4720 asus->ppt_apu_sppt = 5; 4721 asus->ppt_platform_sppt = 5; 4722 asus->ppt_fppt = 5; 4723 asus->nv_dynamic_boost = 5; 4724 asus->nv_temp_target = 75; 4725 4726 asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU); 4727 asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU); 4728 asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE); 4729 asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE) 4730 && dmi_check_system(asus_ally_mcu_quirk); 4731 4732 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE)) 4733 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE; 4734 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2)) 4735 asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2; 4736 4737 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX)) 4738 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX; 4739 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO)) 4740 asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO; 4741 4742 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE)) 4743 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE; 4744 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2)) 4745 asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2; 4746 4747 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY)) 4748 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY; 4749 else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO)) 4750 asus->throttle_thermal_policy_dev = ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO; 4751 4752 err = fan_boost_mode_check_present(asus); 4753 if (err) 4754 goto fail_fan_boost_mode; 4755 4756 err = platform_profile_setup(asus); 4757 if (err) 4758 goto fail_platform_profile_setup; 4759 4760 err = asus_wmi_sysfs_init(asus->platform_device); 4761 if (err) 4762 goto fail_sysfs; 4763 4764 err = asus_wmi_input_init(asus); 4765 if (err) 4766 goto fail_input; 4767 4768 err = asus_wmi_fan_init(asus); /* probably no problems on error */ 4769 4770 err = asus_wmi_hwmon_init(asus); 4771 if (err) 4772 goto fail_hwmon; 4773 4774 err = asus_wmi_custom_fan_curve_init(asus); 4775 if (err) 4776 goto fail_custom_fan_curve; 4777 4778 err = asus_wmi_led_init(asus); 4779 if (err) 4780 goto fail_leds; 4781 4782 asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); 4783 if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) 4784 asus->driver->wlan_ctrl_by_user = 1; 4785 4786 if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) { 4787 err = asus_wmi_rfkill_init(asus); 4788 if (err) 4789 goto fail_rfkill; 4790 } 4791 4792 if (asus->driver->quirks->wmi_force_als_set) 4793 asus_wmi_set_als(); 4794 4795 if (asus->driver->quirks->xusb2pr) 4796 asus_wmi_set_xusb2pr(asus); 4797 4798 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) { 4799 err = asus_wmi_backlight_init(asus); 4800 if (err && err != -ENODEV) 4801 goto fail_backlight; 4802 } else if (asus->driver->quirks->wmi_backlight_set_devstate) 4803 err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL); 4804 4805 if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) { 4806 err = asus_screenpad_init(asus); 4807 if (err && err != -ENODEV) 4808 goto fail_screenpad; 4809 } 4810 4811 if (asus_wmi_has_fnlock_key(asus)) { 4812 asus->fnlock_locked = fnlock_default; 4813 asus_wmi_fnlock_update(asus); 4814 } 4815 4816 status = wmi_install_notify_handler(asus->driver->event_guid, 4817 asus_wmi_notify, asus); 4818 if (ACPI_FAILURE(status)) { 4819 pr_err("Unable to register notify handler - %d\n", status); 4820 err = -ENODEV; 4821 goto fail_wmi_handler; 4822 } 4823 4824 if (asus->driver->i8042_filter) { 4825 err = i8042_install_filter(asus->driver->i8042_filter); 4826 if (err) 4827 pr_warn("Unable to install key filter - %d\n", err); 4828 } 4829 4830 asus_wmi_battery_init(asus); 4831 4832 asus_wmi_debugfs_init(asus); 4833 4834 return 0; 4835 4836 fail_wmi_handler: 4837 asus_wmi_backlight_exit(asus); 4838 fail_backlight: 4839 asus_wmi_rfkill_exit(asus); 4840 fail_screenpad: 4841 asus_screenpad_exit(asus); 4842 fail_rfkill: 4843 asus_wmi_led_exit(asus); 4844 fail_leds: 4845 fail_hwmon: 4846 asus_wmi_input_exit(asus); 4847 fail_input: 4848 asus_wmi_sysfs_exit(asus->platform_device); 4849 fail_sysfs: 4850 fail_custom_fan_curve: 4851 fail_platform_profile_setup: 4852 if (asus->platform_profile_support) 4853 platform_profile_remove(); 4854 fail_fan_boost_mode: 4855 fail_platform: 4856 kfree(asus); 4857 return err; 4858 } 4859 4860 static void asus_wmi_remove(struct platform_device *device) 4861 { 4862 struct asus_wmi *asus; 4863 4864 asus = platform_get_drvdata(device); 4865 if (asus->driver->i8042_filter) 4866 i8042_remove_filter(asus->driver->i8042_filter); 4867 wmi_remove_notify_handler(asus->driver->event_guid); 4868 asus_wmi_backlight_exit(asus); 4869 asus_screenpad_exit(asus); 4870 asus_wmi_input_exit(asus); 4871 asus_wmi_led_exit(asus); 4872 asus_wmi_rfkill_exit(asus); 4873 asus_wmi_debugfs_exit(asus); 4874 asus_wmi_sysfs_exit(asus->platform_device); 4875 asus_fan_set_auto(asus); 4876 throttle_thermal_policy_set_default(asus); 4877 asus_wmi_battery_exit(asus); 4878 4879 if (asus->platform_profile_support) 4880 platform_profile_remove(); 4881 4882 kfree(asus); 4883 } 4884 4885 /* Platform driver - hibernate/resume callbacks *******************************/ 4886 4887 static int asus_hotk_thaw(struct device *device) 4888 { 4889 struct asus_wmi *asus = dev_get_drvdata(device); 4890 4891 if (asus->wlan.rfkill) { 4892 bool wlan; 4893 4894 /* 4895 * Work around bios bug - acpi _PTS turns off the wireless led 4896 * during suspend. Normally it restores it on resume, but 4897 * we should kick it ourselves in case hibernation is aborted. 4898 */ 4899 wlan = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN); 4900 asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL); 4901 } 4902 4903 return 0; 4904 } 4905 4906 static int asus_hotk_resume(struct device *device) 4907 { 4908 struct asus_wmi *asus = dev_get_drvdata(device); 4909 4910 if (!IS_ERR_OR_NULL(asus->kbd_led.dev)) 4911 kbd_led_update(asus); 4912 4913 if (asus_wmi_has_fnlock_key(asus)) 4914 asus_wmi_fnlock_update(asus); 4915 4916 asus_wmi_tablet_mode_get_state(asus); 4917 4918 return 0; 4919 } 4920 4921 static int asus_hotk_resume_early(struct device *device) 4922 { 4923 struct asus_wmi *asus = dev_get_drvdata(device); 4924 4925 if (asus->ally_mcu_usb_switch) { 4926 /* sleep required to prevent USB0 being yanked then reappearing rapidly */ 4927 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8))) 4928 dev_err(device, "ROG Ally MCU failed to connect USB dev\n"); 4929 else 4930 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT); 4931 } 4932 return 0; 4933 } 4934 4935 static int asus_hotk_prepare(struct device *device) 4936 { 4937 struct asus_wmi *asus = dev_get_drvdata(device); 4938 4939 if (asus->ally_mcu_usb_switch) { 4940 /* sleep required to ensure USB0 is disabled before sleep continues */ 4941 if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7))) 4942 dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n"); 4943 else 4944 msleep(ASUS_USB0_PWR_EC0_CSEE_WAIT); 4945 } 4946 return 0; 4947 } 4948 4949 static int asus_hotk_restore(struct device *device) 4950 { 4951 struct asus_wmi *asus = dev_get_drvdata(device); 4952 int bl; 4953 4954 /* Refresh both wlan rfkill state and pci hotplug */ 4955 if (asus->wlan.rfkill) 4956 asus_rfkill_hotplug(asus); 4957 4958 if (asus->bluetooth.rfkill) { 4959 bl = !asus_wmi_get_devstate_simple(asus, 4960 ASUS_WMI_DEVID_BLUETOOTH); 4961 rfkill_set_sw_state(asus->bluetooth.rfkill, bl); 4962 } 4963 if (asus->wimax.rfkill) { 4964 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX); 4965 rfkill_set_sw_state(asus->wimax.rfkill, bl); 4966 } 4967 if (asus->wwan3g.rfkill) { 4968 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G); 4969 rfkill_set_sw_state(asus->wwan3g.rfkill, bl); 4970 } 4971 if (asus->gps.rfkill) { 4972 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS); 4973 rfkill_set_sw_state(asus->gps.rfkill, bl); 4974 } 4975 if (asus->uwb.rfkill) { 4976 bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB); 4977 rfkill_set_sw_state(asus->uwb.rfkill, bl); 4978 } 4979 if (!IS_ERR_OR_NULL(asus->kbd_led.dev)) 4980 kbd_led_update(asus); 4981 4982 if (asus_wmi_has_fnlock_key(asus)) 4983 asus_wmi_fnlock_update(asus); 4984 4985 asus_wmi_tablet_mode_get_state(asus); 4986 return 0; 4987 } 4988 4989 static const struct dev_pm_ops asus_pm_ops = { 4990 .thaw = asus_hotk_thaw, 4991 .restore = asus_hotk_restore, 4992 .resume = asus_hotk_resume, 4993 .resume_early = asus_hotk_resume_early, 4994 .prepare = asus_hotk_prepare, 4995 }; 4996 4997 /* Registration ***************************************************************/ 4998 4999 static int asus_wmi_probe(struct platform_device *pdev) 5000 { 5001 struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); 5002 struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); 5003 int ret; 5004 5005 if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { 5006 pr_warn("ASUS Management GUID not found\n"); 5007 return -ENODEV; 5008 } 5009 5010 if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) { 5011 pr_warn("ASUS Event GUID not found\n"); 5012 return -ENODEV; 5013 } 5014 5015 if (wdrv->probe) { 5016 ret = wdrv->probe(pdev); 5017 if (ret) 5018 return ret; 5019 } 5020 5021 return asus_wmi_add(pdev); 5022 } 5023 5024 static bool used; 5025 5026 int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver) 5027 { 5028 struct platform_driver *platform_driver; 5029 struct platform_device *platform_device; 5030 5031 if (used) 5032 return -EBUSY; 5033 5034 platform_driver = &driver->platform_driver; 5035 platform_driver->remove = asus_wmi_remove; 5036 platform_driver->driver.owner = driver->owner; 5037 platform_driver->driver.name = driver->name; 5038 platform_driver->driver.pm = &asus_pm_ops; 5039 5040 platform_device = platform_create_bundle(platform_driver, 5041 asus_wmi_probe, 5042 NULL, 0, NULL, 0); 5043 if (IS_ERR(platform_device)) 5044 return PTR_ERR(platform_device); 5045 5046 used = true; 5047 return 0; 5048 } 5049 EXPORT_SYMBOL_GPL(asus_wmi_register_driver); 5050 5051 void asus_wmi_unregister_driver(struct asus_wmi_driver *driver) 5052 { 5053 platform_device_unregister(driver->platform_device); 5054 platform_driver_unregister(&driver->platform_driver); 5055 used = false; 5056 } 5057 EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver); 5058 5059 static int __init asus_wmi_init(void) 5060 { 5061 pr_info("ASUS WMI generic driver loaded\n"); 5062 return 0; 5063 } 5064 5065 static void __exit asus_wmi_exit(void) 5066 { 5067 pr_info("ASUS WMI generic driver unloaded\n"); 5068 } 5069 5070 module_init(asus_wmi_init); 5071 module_exit(asus_wmi_exit); 5072