1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Acer WMI Laptop Extras
4 *
5 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
6 *
7 * Based on acer_acpi:
8 * Copyright (C) 2005-2007 E.M. Smith
9 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
10 */
11
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/types.h>
18 #include <linux/dmi.h>
19 #include <linux/fb.h>
20 #include <linux/backlight.h>
21 #include <linux/leds.h>
22 #include <linux/platform_device.h>
23 #include <linux/acpi.h>
24 #include <linux/i8042.h>
25 #include <linux/rfkill.h>
26 #include <linux/workqueue.h>
27 #include <linux/debugfs.h>
28 #include <linux/slab.h>
29 #include <linux/input.h>
30 #include <linux/input/sparse-keymap.h>
31 #include <acpi/video.h>
32
33 MODULE_AUTHOR("Carlos Corbacho");
34 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
35 MODULE_LICENSE("GPL");
36
37 /*
38 * Magic Number
39 * Meaning is unknown - this number is required for writing to ACPI for AMW0
40 * (it's also used in acerhk when directly accessing the BIOS)
41 */
42 #define ACER_AMW0_WRITE 0x9610
43
44 /*
45 * Bit masks for the AMW0 interface
46 */
47 #define ACER_AMW0_WIRELESS_MASK 0x35
48 #define ACER_AMW0_BLUETOOTH_MASK 0x34
49 #define ACER_AMW0_MAILLED_MASK 0x31
50
51 /*
52 * Method IDs for WMID interface
53 */
54 #define ACER_WMID_GET_WIRELESS_METHODID 1
55 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
56 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
57 #define ACER_WMID_SET_WIRELESS_METHODID 4
58 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
59 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
60 #define ACER_WMID_GET_THREEG_METHODID 10
61 #define ACER_WMID_SET_THREEG_METHODID 11
62
63 #define ACER_WMID_SET_GAMING_LED_METHODID 2
64 #define ACER_WMID_GET_GAMING_LED_METHODID 4
65 #define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
66 #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
67
68 /*
69 * Acer ACPI method GUIDs
70 */
71 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
72 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
73 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
74 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
75 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
76 #define WMID_GUID4 "7A4DDFE7-5B5D-40B4-8595-4408E0CC7F56"
77
78 /*
79 * Acer ACPI event GUIDs
80 */
81 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
82
83 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
84 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
85 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
86
87 enum acer_wmi_event_ids {
88 WMID_HOTKEY_EVENT = 0x1,
89 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
90 WMID_GAMING_TURBO_KEY_EVENT = 0x7,
91 };
92
93 static const struct key_entry acer_wmi_keymap[] __initconst = {
94 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
95 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
96 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
97 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
98 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
99 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
100 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
101 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
102 {KE_KEY, 0x27, {KEY_HELP} },
103 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
104 {KE_IGNORE, 0x41, {KEY_MUTE} },
105 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
106 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
107 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
108 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
109 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
110 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
111 {KE_IGNORE, 0x45, {KEY_STOP} },
112 {KE_IGNORE, 0x50, {KEY_STOP} },
113 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
114 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
115 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
116 /*
117 * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
118 * with the "Video Bus" input device events. But sometimes it is not
119 * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
120 * udev/hwdb can override it on systems where it is not a dup.
121 */
122 {KE_KEY, 0x61, {KEY_UNKNOWN} },
123 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
124 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
125 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
126 {KE_IGNORE, 0x81, {KEY_SLEEP} },
127 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
128 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
129 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
130 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
131 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
132 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
133 {KE_KEY, 0x86, {KEY_WLAN} },
134 {KE_KEY, 0x87, {KEY_POWER} },
135 {KE_END, 0}
136 };
137
138 static struct input_dev *acer_wmi_input_dev;
139 static struct input_dev *acer_wmi_accel_dev;
140
141 struct event_return_value {
142 u8 function;
143 u8 key_num;
144 u16 device_state;
145 u16 reserved1;
146 u8 kbd_dock_state;
147 u8 reserved2;
148 } __packed;
149
150 /*
151 * GUID3 Get Device Status device flags
152 */
153 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
154 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
155 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
156 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
157 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
158
159 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
160
161 /* Hotkey Customized Setting and Acer Application Status.
162 * Set Device Default Value and Report Acer Application Status.
163 * When Acer Application starts, it will run this method to inform
164 * BIOS/EC that Acer Application is on.
165 * App Status
166 * Bit[0]: Launch Manager Status
167 * Bit[1]: ePM Status
168 * Bit[2]: Device Control Status
169 * Bit[3]: Acer Power Button Utility Status
170 * Bit[4]: RF Button Status
171 * Bit[5]: ODD PM Status
172 * Bit[6]: Device Default Value Control
173 * Bit[7]: Hall Sensor Application Status
174 */
175 struct func_input_params {
176 u8 function_num; /* Function Number */
177 u16 commun_devices; /* Communication type devices default status */
178 u16 devices; /* Other type devices default status */
179 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
180 u8 app_mask; /* Bit mask to app_status */
181 u8 reserved;
182 } __packed;
183
184 struct func_return_value {
185 u8 error_code; /* Error Code */
186 u8 ec_return_value; /* EC Return Value */
187 u16 reserved;
188 } __packed;
189
190 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
191 u8 function_num; /* Function Number */
192 u8 hotkey_number; /* Hotkey Number */
193 u16 devices; /* Set Device */
194 u8 volume_value; /* Volume Value */
195 } __packed;
196
197 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
198 u8 function_num; /* Function Number */
199 u8 hotkey_number; /* Hotkey Number */
200 u16 devices; /* Get Device */
201 } __packed;
202
203 struct wmid3_gds_return_value { /* Get Device Status return value*/
204 u8 error_code; /* Error Code */
205 u8 ec_return_value; /* EC Return Value */
206 u16 devices; /* Current Device Status */
207 u32 reserved;
208 } __packed;
209
210 struct hotkey_function_type_aa {
211 u8 type;
212 u8 length;
213 u16 handle;
214 u16 commun_func_bitmap;
215 u16 application_func_bitmap;
216 u16 media_func_bitmap;
217 u16 display_func_bitmap;
218 u16 others_func_bitmap;
219 u8 commun_fn_key_number;
220 } __packed;
221
222 /*
223 * Interface capability flags
224 */
225 #define ACER_CAP_MAILLED BIT(0)
226 #define ACER_CAP_WIRELESS BIT(1)
227 #define ACER_CAP_BLUETOOTH BIT(2)
228 #define ACER_CAP_BRIGHTNESS BIT(3)
229 #define ACER_CAP_THREEG BIT(4)
230 #define ACER_CAP_SET_FUNCTION_MODE BIT(5)
231 #define ACER_CAP_KBD_DOCK BIT(6)
232 #define ACER_CAP_TURBO_OC BIT(7)
233 #define ACER_CAP_TURBO_LED BIT(8)
234 #define ACER_CAP_TURBO_FAN BIT(9)
235
236 /*
237 * Interface type flags
238 */
239 enum interface_flags {
240 ACER_AMW0,
241 ACER_AMW0_V2,
242 ACER_WMID,
243 ACER_WMID_v2,
244 };
245
246 #define ACER_DEFAULT_WIRELESS 0
247 #define ACER_DEFAULT_BLUETOOTH 0
248 #define ACER_DEFAULT_MAILLED 0
249 #define ACER_DEFAULT_THREEG 0
250
251 static int max_brightness = 0xF;
252
253 static int mailled = -1;
254 static int brightness = -1;
255 static int threeg = -1;
256 static int force_series;
257 static int force_caps = -1;
258 static bool ec_raw_mode;
259 static bool has_type_aa;
260 static u16 commun_func_bitmap;
261 static u8 commun_fn_key_number;
262
263 module_param(mailled, int, 0444);
264 module_param(brightness, int, 0444);
265 module_param(threeg, int, 0444);
266 module_param(force_series, int, 0444);
267 module_param(force_caps, int, 0444);
268 module_param(ec_raw_mode, bool, 0444);
269 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
270 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
271 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
272 MODULE_PARM_DESC(force_series, "Force a different laptop series");
273 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
274 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
275
276 struct acer_data {
277 int mailled;
278 int threeg;
279 int brightness;
280 };
281
282 struct acer_debug {
283 struct dentry *root;
284 u32 wmid_devices;
285 };
286
287 static struct rfkill *wireless_rfkill;
288 static struct rfkill *bluetooth_rfkill;
289 static struct rfkill *threeg_rfkill;
290 static bool rfkill_inited;
291
292 /* Each low-level interface must define at least some of the following */
293 struct wmi_interface {
294 /* The WMI device type */
295 u32 type;
296
297 /* The capabilities this interface provides */
298 u32 capability;
299
300 /* Private data for the current interface */
301 struct acer_data data;
302
303 /* debugfs entries associated with this interface */
304 struct acer_debug debug;
305 };
306
307 /* The static interface pointer, points to the currently detected interface */
308 static struct wmi_interface *interface;
309
310 /*
311 * Embedded Controller quirks
312 * Some laptops require us to directly access the EC to either enable or query
313 * features that are not available through WMI.
314 */
315
316 struct quirk_entry {
317 u8 wireless;
318 u8 mailled;
319 s8 brightness;
320 u8 bluetooth;
321 u8 turbo;
322 u8 cpu_fans;
323 u8 gpu_fans;
324 };
325
326 static struct quirk_entry *quirks;
327
set_quirks(void)328 static void __init set_quirks(void)
329 {
330 if (quirks->mailled)
331 interface->capability |= ACER_CAP_MAILLED;
332
333 if (quirks->brightness)
334 interface->capability |= ACER_CAP_BRIGHTNESS;
335
336 if (quirks->turbo)
337 interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
338 | ACER_CAP_TURBO_FAN;
339 }
340
dmi_matched(const struct dmi_system_id * dmi)341 static int __init dmi_matched(const struct dmi_system_id *dmi)
342 {
343 quirks = dmi->driver_data;
344 return 1;
345 }
346
set_force_caps(const struct dmi_system_id * dmi)347 static int __init set_force_caps(const struct dmi_system_id *dmi)
348 {
349 if (force_caps == -1) {
350 force_caps = (uintptr_t)dmi->driver_data;
351 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
352 }
353 return 1;
354 }
355
356 static struct quirk_entry quirk_unknown = {
357 };
358
359 static struct quirk_entry quirk_acer_aspire_1520 = {
360 .brightness = -1,
361 };
362
363 static struct quirk_entry quirk_acer_travelmate_2490 = {
364 .mailled = 1,
365 };
366
367 static struct quirk_entry quirk_acer_predator_ph315_53 = {
368 .turbo = 1,
369 .cpu_fans = 1,
370 .gpu_fans = 1,
371 };
372
373 /* This AMW0 laptop has no bluetooth */
374 static struct quirk_entry quirk_medion_md_98300 = {
375 .wireless = 1,
376 };
377
378 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
379 .wireless = 2,
380 };
381
382 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
383 .wireless = 3,
384 };
385
386 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
387 static const struct dmi_system_id acer_blacklist[] __initconst = {
388 {
389 .ident = "Acer Aspire One (SSD)",
390 .matches = {
391 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
392 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
393 },
394 },
395 {
396 .ident = "Acer Aspire One (HDD)",
397 .matches = {
398 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
399 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
400 },
401 },
402 {}
403 };
404
405 static const struct dmi_system_id amw0_whitelist[] __initconst = {
406 {
407 .ident = "Acer",
408 .matches = {
409 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
410 },
411 },
412 {
413 .ident = "Gateway",
414 .matches = {
415 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
416 },
417 },
418 {
419 .ident = "Packard Bell",
420 .matches = {
421 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
422 },
423 },
424 {}
425 };
426
427 /*
428 * This quirk table is only for Acer/Gateway/Packard Bell family
429 * that those machines are supported by acer-wmi driver.
430 */
431 static const struct dmi_system_id acer_quirks[] __initconst = {
432 {
433 .callback = dmi_matched,
434 .ident = "Acer Aspire 1360",
435 .matches = {
436 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
437 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
438 },
439 .driver_data = &quirk_acer_aspire_1520,
440 },
441 {
442 .callback = dmi_matched,
443 .ident = "Acer Aspire 1520",
444 .matches = {
445 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
446 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
447 },
448 .driver_data = &quirk_acer_aspire_1520,
449 },
450 {
451 .callback = dmi_matched,
452 .ident = "Acer Aspire 3100",
453 .matches = {
454 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
455 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
456 },
457 .driver_data = &quirk_acer_travelmate_2490,
458 },
459 {
460 .callback = dmi_matched,
461 .ident = "Acer Aspire 3610",
462 .matches = {
463 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
464 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
465 },
466 .driver_data = &quirk_acer_travelmate_2490,
467 },
468 {
469 .callback = dmi_matched,
470 .ident = "Acer Aspire 5100",
471 .matches = {
472 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
473 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
474 },
475 .driver_data = &quirk_acer_travelmate_2490,
476 },
477 {
478 .callback = dmi_matched,
479 .ident = "Acer Aspire 5610",
480 .matches = {
481 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
482 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
483 },
484 .driver_data = &quirk_acer_travelmate_2490,
485 },
486 {
487 .callback = dmi_matched,
488 .ident = "Acer Aspire 5630",
489 .matches = {
490 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
491 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
492 },
493 .driver_data = &quirk_acer_travelmate_2490,
494 },
495 {
496 .callback = dmi_matched,
497 .ident = "Acer Aspire 5650",
498 .matches = {
499 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
500 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
501 },
502 .driver_data = &quirk_acer_travelmate_2490,
503 },
504 {
505 .callback = dmi_matched,
506 .ident = "Acer Aspire 5680",
507 .matches = {
508 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
509 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
510 },
511 .driver_data = &quirk_acer_travelmate_2490,
512 },
513 {
514 .callback = dmi_matched,
515 .ident = "Acer Aspire 9110",
516 .matches = {
517 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
518 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
519 },
520 .driver_data = &quirk_acer_travelmate_2490,
521 },
522 {
523 .callback = dmi_matched,
524 .ident = "Acer TravelMate 2490",
525 .matches = {
526 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
527 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
528 },
529 .driver_data = &quirk_acer_travelmate_2490,
530 },
531 {
532 .callback = dmi_matched,
533 .ident = "Acer TravelMate 4200",
534 .matches = {
535 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
536 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
537 },
538 .driver_data = &quirk_acer_travelmate_2490,
539 },
540 {
541 .callback = dmi_matched,
542 .ident = "Acer Predator PH315-53",
543 .matches = {
544 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
545 DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH315-53"),
546 },
547 .driver_data = &quirk_acer_predator_ph315_53,
548 },
549 {
550 .callback = set_force_caps,
551 .ident = "Acer Aspire Switch 10E SW3-016",
552 .matches = {
553 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
555 },
556 .driver_data = (void *)ACER_CAP_KBD_DOCK,
557 },
558 {
559 .callback = set_force_caps,
560 .ident = "Acer Aspire Switch 10 SW5-012",
561 .matches = {
562 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
564 },
565 .driver_data = (void *)ACER_CAP_KBD_DOCK,
566 },
567 {
568 .callback = set_force_caps,
569 .ident = "Acer Aspire Switch V 10 SW5-017",
570 .matches = {
571 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
572 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
573 },
574 .driver_data = (void *)ACER_CAP_KBD_DOCK,
575 },
576 {
577 .callback = set_force_caps,
578 .ident = "Acer One 10 (S1003)",
579 .matches = {
580 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
581 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
582 },
583 .driver_data = (void *)ACER_CAP_KBD_DOCK,
584 },
585 {}
586 };
587
588 /*
589 * This quirk list is for those non-acer machines that have AMW0_GUID1
590 * but supported by acer-wmi in past days. Keeping this quirk list here
591 * is only for backward compatible. Please do not add new machine to
592 * here anymore. Those non-acer machines should be supported by
593 * appropriate wmi drivers.
594 */
595 static const struct dmi_system_id non_acer_quirks[] __initconst = {
596 {
597 .callback = dmi_matched,
598 .ident = "Fujitsu Siemens Amilo Li 1718",
599 .matches = {
600 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
601 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
602 },
603 .driver_data = &quirk_fujitsu_amilo_li_1718,
604 },
605 {
606 .callback = dmi_matched,
607 .ident = "Medion MD 98300",
608 .matches = {
609 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
610 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
611 },
612 .driver_data = &quirk_medion_md_98300,
613 },
614 {
615 .callback = dmi_matched,
616 .ident = "Lenovo Ideapad S205",
617 .matches = {
618 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
619 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
620 },
621 .driver_data = &quirk_lenovo_ideapad_s205,
622 },
623 {
624 .callback = dmi_matched,
625 .ident = "Lenovo Ideapad S205 (Brazos)",
626 .matches = {
627 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
628 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
629 },
630 .driver_data = &quirk_lenovo_ideapad_s205,
631 },
632 {
633 .callback = dmi_matched,
634 .ident = "Lenovo 3000 N200",
635 .matches = {
636 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
637 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
638 },
639 .driver_data = &quirk_fujitsu_amilo_li_1718,
640 },
641 {
642 .callback = dmi_matched,
643 .ident = "Lenovo Ideapad S205-10382JG",
644 .matches = {
645 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
646 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
647 },
648 .driver_data = &quirk_lenovo_ideapad_s205,
649 },
650 {
651 .callback = dmi_matched,
652 .ident = "Lenovo Ideapad S205-1038DPG",
653 .matches = {
654 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
655 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
656 },
657 .driver_data = &quirk_lenovo_ideapad_s205,
658 },
659 {}
660 };
661
662 /* Find which quirks are needed for a particular vendor/ model pair */
find_quirks(void)663 static void __init find_quirks(void)
664 {
665 if (!force_series) {
666 dmi_check_system(acer_quirks);
667 dmi_check_system(non_acer_quirks);
668 } else if (force_series == 2490) {
669 quirks = &quirk_acer_travelmate_2490;
670 }
671
672 if (quirks == NULL)
673 quirks = &quirk_unknown;
674 }
675
676 /*
677 * General interface convenience methods
678 */
679
has_cap(u32 cap)680 static bool has_cap(u32 cap)
681 {
682 return interface->capability & cap;
683 }
684
685 /*
686 * AMW0 (V1) interface
687 */
688 struct wmab_args {
689 u32 eax;
690 u32 ebx;
691 u32 ecx;
692 u32 edx;
693 };
694
695 struct wmab_ret {
696 u32 eax;
697 u32 ebx;
698 u32 ecx;
699 u32 edx;
700 u32 eex;
701 };
702
wmab_execute(struct wmab_args * regbuf,struct acpi_buffer * result)703 static acpi_status wmab_execute(struct wmab_args *regbuf,
704 struct acpi_buffer *result)
705 {
706 struct acpi_buffer input;
707 acpi_status status;
708 input.length = sizeof(struct wmab_args);
709 input.pointer = (u8 *)regbuf;
710
711 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
712
713 return status;
714 }
715
AMW0_get_u32(u32 * value,u32 cap)716 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
717 {
718 int err;
719 u8 result;
720
721 switch (cap) {
722 case ACER_CAP_MAILLED:
723 switch (quirks->mailled) {
724 default:
725 err = ec_read(0xA, &result);
726 if (err)
727 return AE_ERROR;
728 *value = (result >> 7) & 0x1;
729 return AE_OK;
730 }
731 break;
732 case ACER_CAP_WIRELESS:
733 switch (quirks->wireless) {
734 case 1:
735 err = ec_read(0x7B, &result);
736 if (err)
737 return AE_ERROR;
738 *value = result & 0x1;
739 return AE_OK;
740 case 2:
741 err = ec_read(0x71, &result);
742 if (err)
743 return AE_ERROR;
744 *value = result & 0x1;
745 return AE_OK;
746 case 3:
747 err = ec_read(0x78, &result);
748 if (err)
749 return AE_ERROR;
750 *value = result & 0x1;
751 return AE_OK;
752 default:
753 err = ec_read(0xA, &result);
754 if (err)
755 return AE_ERROR;
756 *value = (result >> 2) & 0x1;
757 return AE_OK;
758 }
759 break;
760 case ACER_CAP_BLUETOOTH:
761 switch (quirks->bluetooth) {
762 default:
763 err = ec_read(0xA, &result);
764 if (err)
765 return AE_ERROR;
766 *value = (result >> 4) & 0x1;
767 return AE_OK;
768 }
769 break;
770 case ACER_CAP_BRIGHTNESS:
771 switch (quirks->brightness) {
772 default:
773 err = ec_read(0x83, &result);
774 if (err)
775 return AE_ERROR;
776 *value = result;
777 return AE_OK;
778 }
779 break;
780 default:
781 return AE_ERROR;
782 }
783 return AE_OK;
784 }
785
AMW0_set_u32(u32 value,u32 cap)786 static acpi_status AMW0_set_u32(u32 value, u32 cap)
787 {
788 struct wmab_args args;
789
790 args.eax = ACER_AMW0_WRITE;
791 args.ebx = value ? (1<<8) : 0;
792 args.ecx = args.edx = 0;
793
794 switch (cap) {
795 case ACER_CAP_MAILLED:
796 if (value > 1)
797 return AE_BAD_PARAMETER;
798 args.ebx |= ACER_AMW0_MAILLED_MASK;
799 break;
800 case ACER_CAP_WIRELESS:
801 if (value > 1)
802 return AE_BAD_PARAMETER;
803 args.ebx |= ACER_AMW0_WIRELESS_MASK;
804 break;
805 case ACER_CAP_BLUETOOTH:
806 if (value > 1)
807 return AE_BAD_PARAMETER;
808 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
809 break;
810 case ACER_CAP_BRIGHTNESS:
811 if (value > max_brightness)
812 return AE_BAD_PARAMETER;
813 switch (quirks->brightness) {
814 default:
815 return ec_write(0x83, value);
816 }
817 default:
818 return AE_ERROR;
819 }
820
821 /* Actually do the set */
822 return wmab_execute(&args, NULL);
823 }
824
AMW0_find_mailled(void)825 static acpi_status __init AMW0_find_mailled(void)
826 {
827 struct wmab_args args;
828 struct wmab_ret ret;
829 acpi_status status = AE_OK;
830 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
831 union acpi_object *obj;
832
833 args.eax = 0x86;
834 args.ebx = args.ecx = args.edx = 0;
835
836 status = wmab_execute(&args, &out);
837 if (ACPI_FAILURE(status))
838 return status;
839
840 obj = (union acpi_object *) out.pointer;
841 if (obj && obj->type == ACPI_TYPE_BUFFER &&
842 obj->buffer.length == sizeof(struct wmab_ret)) {
843 ret = *((struct wmab_ret *) obj->buffer.pointer);
844 } else {
845 kfree(out.pointer);
846 return AE_ERROR;
847 }
848
849 if (ret.eex & 0x1)
850 interface->capability |= ACER_CAP_MAILLED;
851
852 kfree(out.pointer);
853
854 return AE_OK;
855 }
856
857 static const struct acpi_device_id norfkill_ids[] __initconst = {
858 { "VPC2004", 0},
859 { "IBM0068", 0},
860 { "LEN0068", 0},
861 { "SNY5001", 0}, /* sony-laptop in charge */
862 { "HPQ6601", 0},
863 { "", 0},
864 };
865
AMW0_set_cap_acpi_check_device(void)866 static int __init AMW0_set_cap_acpi_check_device(void)
867 {
868 const struct acpi_device_id *id;
869
870 for (id = norfkill_ids; id->id[0]; id++)
871 if (acpi_dev_found(id->id))
872 return true;
873
874 return false;
875 }
876
AMW0_set_capabilities(void)877 static acpi_status __init AMW0_set_capabilities(void)
878 {
879 struct wmab_args args;
880 struct wmab_ret ret;
881 acpi_status status;
882 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
883 union acpi_object *obj;
884
885 /*
886 * On laptops with this strange GUID (non Acer), normal probing doesn't
887 * work.
888 */
889 if (wmi_has_guid(AMW0_GUID2)) {
890 if ((quirks != &quirk_unknown) ||
891 !AMW0_set_cap_acpi_check_device())
892 interface->capability |= ACER_CAP_WIRELESS;
893 return AE_OK;
894 }
895
896 args.eax = ACER_AMW0_WRITE;
897 args.ecx = args.edx = 0;
898
899 args.ebx = 0xa2 << 8;
900 args.ebx |= ACER_AMW0_WIRELESS_MASK;
901
902 status = wmab_execute(&args, &out);
903 if (ACPI_FAILURE(status))
904 return status;
905
906 obj = out.pointer;
907 if (obj && obj->type == ACPI_TYPE_BUFFER &&
908 obj->buffer.length == sizeof(struct wmab_ret)) {
909 ret = *((struct wmab_ret *) obj->buffer.pointer);
910 } else {
911 status = AE_ERROR;
912 goto out;
913 }
914
915 if (ret.eax & 0x1)
916 interface->capability |= ACER_CAP_WIRELESS;
917
918 args.ebx = 2 << 8;
919 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
920
921 /*
922 * It's ok to use existing buffer for next wmab_execute call.
923 * But we need to kfree(out.pointer) if next wmab_execute fail.
924 */
925 status = wmab_execute(&args, &out);
926 if (ACPI_FAILURE(status))
927 goto out;
928
929 obj = (union acpi_object *) out.pointer;
930 if (obj && obj->type == ACPI_TYPE_BUFFER
931 && obj->buffer.length == sizeof(struct wmab_ret)) {
932 ret = *((struct wmab_ret *) obj->buffer.pointer);
933 } else {
934 status = AE_ERROR;
935 goto out;
936 }
937
938 if (ret.eax & 0x1)
939 interface->capability |= ACER_CAP_BLUETOOTH;
940
941 /*
942 * This appears to be safe to enable, since all Wistron based laptops
943 * appear to use the same EC register for brightness, even if they
944 * differ for wireless, etc
945 */
946 if (quirks->brightness >= 0)
947 interface->capability |= ACER_CAP_BRIGHTNESS;
948
949 status = AE_OK;
950 out:
951 kfree(out.pointer);
952 return status;
953 }
954
955 static struct wmi_interface AMW0_interface = {
956 .type = ACER_AMW0,
957 };
958
959 static struct wmi_interface AMW0_V2_interface = {
960 .type = ACER_AMW0_V2,
961 };
962
963 /*
964 * New interface (The WMID interface)
965 */
966 static acpi_status
WMI_execute_u32(u32 method_id,u32 in,u32 * out)967 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
968 {
969 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
970 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
971 union acpi_object *obj;
972 u32 tmp = 0;
973 acpi_status status;
974
975 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
976
977 if (ACPI_FAILURE(status))
978 return status;
979
980 obj = (union acpi_object *) result.pointer;
981 if (obj) {
982 if (obj->type == ACPI_TYPE_BUFFER &&
983 (obj->buffer.length == sizeof(u32) ||
984 obj->buffer.length == sizeof(u64))) {
985 tmp = *((u32 *) obj->buffer.pointer);
986 } else if (obj->type == ACPI_TYPE_INTEGER) {
987 tmp = (u32) obj->integer.value;
988 }
989 }
990
991 if (out)
992 *out = tmp;
993
994 kfree(result.pointer);
995
996 return status;
997 }
998
WMID_get_u32(u32 * value,u32 cap)999 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1000 {
1001 acpi_status status;
1002 u8 tmp;
1003 u32 result, method_id = 0;
1004
1005 switch (cap) {
1006 case ACER_CAP_WIRELESS:
1007 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1008 break;
1009 case ACER_CAP_BLUETOOTH:
1010 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1011 break;
1012 case ACER_CAP_BRIGHTNESS:
1013 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1014 break;
1015 case ACER_CAP_THREEG:
1016 method_id = ACER_WMID_GET_THREEG_METHODID;
1017 break;
1018 case ACER_CAP_MAILLED:
1019 if (quirks->mailled == 1) {
1020 ec_read(0x9f, &tmp);
1021 *value = tmp & 0x1;
1022 return 0;
1023 }
1024 fallthrough;
1025 default:
1026 return AE_ERROR;
1027 }
1028 status = WMI_execute_u32(method_id, 0, &result);
1029
1030 if (ACPI_SUCCESS(status))
1031 *value = (u8)result;
1032
1033 return status;
1034 }
1035
WMID_set_u32(u32 value,u32 cap)1036 static acpi_status WMID_set_u32(u32 value, u32 cap)
1037 {
1038 u32 method_id = 0;
1039 char param;
1040
1041 switch (cap) {
1042 case ACER_CAP_BRIGHTNESS:
1043 if (value > max_brightness)
1044 return AE_BAD_PARAMETER;
1045 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1046 break;
1047 case ACER_CAP_WIRELESS:
1048 if (value > 1)
1049 return AE_BAD_PARAMETER;
1050 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1051 break;
1052 case ACER_CAP_BLUETOOTH:
1053 if (value > 1)
1054 return AE_BAD_PARAMETER;
1055 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1056 break;
1057 case ACER_CAP_THREEG:
1058 if (value > 1)
1059 return AE_BAD_PARAMETER;
1060 method_id = ACER_WMID_SET_THREEG_METHODID;
1061 break;
1062 case ACER_CAP_MAILLED:
1063 if (value > 1)
1064 return AE_BAD_PARAMETER;
1065 if (quirks->mailled == 1) {
1066 param = value ? 0x92 : 0x93;
1067 i8042_lock_chip();
1068 i8042_command(¶m, 0x1059);
1069 i8042_unlock_chip();
1070 return 0;
1071 }
1072 break;
1073 default:
1074 return AE_ERROR;
1075 }
1076 return WMI_execute_u32(method_id, (u32)value, NULL);
1077 }
1078
wmid3_get_device_status(u32 * value,u16 device)1079 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1080 {
1081 struct wmid3_gds_return_value return_value;
1082 acpi_status status;
1083 union acpi_object *obj;
1084 struct wmid3_gds_get_input_param params = {
1085 .function_num = 0x1,
1086 .hotkey_number = commun_fn_key_number,
1087 .devices = device,
1088 };
1089 struct acpi_buffer input = {
1090 sizeof(struct wmid3_gds_get_input_param),
1091 ¶ms
1092 };
1093 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1094
1095 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1096 if (ACPI_FAILURE(status))
1097 return status;
1098
1099 obj = output.pointer;
1100
1101 if (!obj)
1102 return AE_ERROR;
1103 else if (obj->type != ACPI_TYPE_BUFFER) {
1104 kfree(obj);
1105 return AE_ERROR;
1106 }
1107 if (obj->buffer.length != 8) {
1108 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1109 kfree(obj);
1110 return AE_ERROR;
1111 }
1112
1113 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1114 kfree(obj);
1115
1116 if (return_value.error_code || return_value.ec_return_value)
1117 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1118 device,
1119 return_value.error_code,
1120 return_value.ec_return_value);
1121 else
1122 *value = !!(return_value.devices & device);
1123
1124 return status;
1125 }
1126
wmid_v2_get_u32(u32 * value,u32 cap)1127 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1128 {
1129 u16 device;
1130
1131 switch (cap) {
1132 case ACER_CAP_WIRELESS:
1133 device = ACER_WMID3_GDS_WIRELESS;
1134 break;
1135 case ACER_CAP_BLUETOOTH:
1136 device = ACER_WMID3_GDS_BLUETOOTH;
1137 break;
1138 case ACER_CAP_THREEG:
1139 device = ACER_WMID3_GDS_THREEG;
1140 break;
1141 default:
1142 return AE_ERROR;
1143 }
1144 return wmid3_get_device_status(value, device);
1145 }
1146
wmid3_set_device_status(u32 value,u16 device)1147 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1148 {
1149 struct wmid3_gds_return_value return_value;
1150 acpi_status status;
1151 union acpi_object *obj;
1152 u16 devices;
1153 struct wmid3_gds_get_input_param get_params = {
1154 .function_num = 0x1,
1155 .hotkey_number = commun_fn_key_number,
1156 .devices = commun_func_bitmap,
1157 };
1158 struct acpi_buffer get_input = {
1159 sizeof(struct wmid3_gds_get_input_param),
1160 &get_params
1161 };
1162 struct wmid3_gds_set_input_param set_params = {
1163 .function_num = 0x2,
1164 .hotkey_number = commun_fn_key_number,
1165 .devices = commun_func_bitmap,
1166 };
1167 struct acpi_buffer set_input = {
1168 sizeof(struct wmid3_gds_set_input_param),
1169 &set_params
1170 };
1171 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1172 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1173
1174 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1175 if (ACPI_FAILURE(status))
1176 return status;
1177
1178 obj = output.pointer;
1179
1180 if (!obj)
1181 return AE_ERROR;
1182 else if (obj->type != ACPI_TYPE_BUFFER) {
1183 kfree(obj);
1184 return AE_ERROR;
1185 }
1186 if (obj->buffer.length != 8) {
1187 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1188 kfree(obj);
1189 return AE_ERROR;
1190 }
1191
1192 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1193 kfree(obj);
1194
1195 if (return_value.error_code || return_value.ec_return_value) {
1196 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1197 return_value.error_code,
1198 return_value.ec_return_value);
1199 return status;
1200 }
1201
1202 devices = return_value.devices;
1203 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1204
1205 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1206 if (ACPI_FAILURE(status))
1207 return status;
1208
1209 obj = output2.pointer;
1210
1211 if (!obj)
1212 return AE_ERROR;
1213 else if (obj->type != ACPI_TYPE_BUFFER) {
1214 kfree(obj);
1215 return AE_ERROR;
1216 }
1217 if (obj->buffer.length != 4) {
1218 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1219 kfree(obj);
1220 return AE_ERROR;
1221 }
1222
1223 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1224 kfree(obj);
1225
1226 if (return_value.error_code || return_value.ec_return_value)
1227 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1228 return_value.error_code,
1229 return_value.ec_return_value);
1230
1231 return status;
1232 }
1233
wmid_v2_set_u32(u32 value,u32 cap)1234 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1235 {
1236 u16 device;
1237
1238 switch (cap) {
1239 case ACER_CAP_WIRELESS:
1240 device = ACER_WMID3_GDS_WIRELESS;
1241 break;
1242 case ACER_CAP_BLUETOOTH:
1243 device = ACER_WMID3_GDS_BLUETOOTH;
1244 break;
1245 case ACER_CAP_THREEG:
1246 device = ACER_WMID3_GDS_THREEG;
1247 break;
1248 default:
1249 return AE_ERROR;
1250 }
1251 return wmid3_set_device_status(value, device);
1252 }
1253
type_aa_dmi_decode(const struct dmi_header * header,void * d)1254 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1255 {
1256 struct hotkey_function_type_aa *type_aa;
1257
1258 /* We are looking for OEM-specific Type AAh */
1259 if (header->type != 0xAA)
1260 return;
1261
1262 has_type_aa = true;
1263 type_aa = (struct hotkey_function_type_aa *) header;
1264
1265 pr_info("Function bitmap for Communication Button: 0x%x\n",
1266 type_aa->commun_func_bitmap);
1267 commun_func_bitmap = type_aa->commun_func_bitmap;
1268
1269 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1270 interface->capability |= ACER_CAP_WIRELESS;
1271 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1272 interface->capability |= ACER_CAP_THREEG;
1273 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1274 interface->capability |= ACER_CAP_BLUETOOTH;
1275 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1276 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1277
1278 commun_fn_key_number = type_aa->commun_fn_key_number;
1279 }
1280
WMID_set_capabilities(void)1281 static acpi_status __init WMID_set_capabilities(void)
1282 {
1283 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1284 union acpi_object *obj;
1285 acpi_status status;
1286 u32 devices;
1287
1288 status = wmi_query_block(WMID_GUID2, 0, &out);
1289 if (ACPI_FAILURE(status))
1290 return status;
1291
1292 obj = (union acpi_object *) out.pointer;
1293 if (obj) {
1294 if (obj->type == ACPI_TYPE_BUFFER &&
1295 (obj->buffer.length == sizeof(u32) ||
1296 obj->buffer.length == sizeof(u64))) {
1297 devices = *((u32 *) obj->buffer.pointer);
1298 } else if (obj->type == ACPI_TYPE_INTEGER) {
1299 devices = (u32) obj->integer.value;
1300 } else {
1301 kfree(out.pointer);
1302 return AE_ERROR;
1303 }
1304 } else {
1305 kfree(out.pointer);
1306 return AE_ERROR;
1307 }
1308
1309 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1310 if (devices & 0x07)
1311 interface->capability |= ACER_CAP_WIRELESS;
1312 if (devices & 0x40)
1313 interface->capability |= ACER_CAP_THREEG;
1314 if (devices & 0x10)
1315 interface->capability |= ACER_CAP_BLUETOOTH;
1316
1317 if (!(devices & 0x20))
1318 max_brightness = 0x9;
1319
1320 kfree(out.pointer);
1321 return status;
1322 }
1323
1324 static struct wmi_interface wmid_interface = {
1325 .type = ACER_WMID,
1326 };
1327
1328 static struct wmi_interface wmid_v2_interface = {
1329 .type = ACER_WMID_v2,
1330 };
1331
1332 /*
1333 * WMID Gaming interface
1334 */
1335
1336 static acpi_status
WMI_gaming_execute_u64(u32 method_id,u64 in,u64 * out)1337 WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
1338 {
1339 struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
1340 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1341 union acpi_object *obj;
1342 u32 tmp = 0;
1343 acpi_status status;
1344
1345 status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
1346
1347 if (ACPI_FAILURE(status))
1348 return status;
1349 obj = (union acpi_object *) result.pointer;
1350
1351 if (obj) {
1352 if (obj->type == ACPI_TYPE_BUFFER) {
1353 if (obj->buffer.length == sizeof(u32))
1354 tmp = *((u32 *) obj->buffer.pointer);
1355 else if (obj->buffer.length == sizeof(u64))
1356 tmp = *((u64 *) obj->buffer.pointer);
1357 } else if (obj->type == ACPI_TYPE_INTEGER) {
1358 tmp = (u64) obj->integer.value;
1359 }
1360 }
1361
1362 if (out)
1363 *out = tmp;
1364
1365 kfree(result.pointer);
1366
1367 return status;
1368 }
1369
WMID_gaming_set_u64(u64 value,u32 cap)1370 static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
1371 {
1372 u32 method_id = 0;
1373
1374 if (!(interface->capability & cap))
1375 return AE_BAD_PARAMETER;
1376
1377 switch (cap) {
1378 case ACER_CAP_TURBO_LED:
1379 method_id = ACER_WMID_SET_GAMING_LED_METHODID;
1380 break;
1381 case ACER_CAP_TURBO_FAN:
1382 method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
1383 break;
1384 case ACER_CAP_TURBO_OC:
1385 method_id = ACER_WMID_SET_GAMING_MISC_SETTING_METHODID;
1386 break;
1387 default:
1388 return AE_BAD_PARAMETER;
1389 }
1390
1391 return WMI_gaming_execute_u64(method_id, value, NULL);
1392 }
1393
WMID_gaming_get_u64(u64 * value,u32 cap)1394 static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap)
1395 {
1396 acpi_status status;
1397 u64 result;
1398 u64 input;
1399 u32 method_id;
1400
1401 if (!(interface->capability & cap))
1402 return AE_BAD_PARAMETER;
1403
1404 switch (cap) {
1405 case ACER_CAP_TURBO_LED:
1406 method_id = ACER_WMID_GET_GAMING_LED_METHODID;
1407 input = 0x1;
1408 break;
1409 default:
1410 return AE_BAD_PARAMETER;
1411 }
1412 status = WMI_gaming_execute_u64(method_id, input, &result);
1413 if (ACPI_SUCCESS(status))
1414 *value = (u64) result;
1415
1416 return status;
1417 }
1418
WMID_gaming_set_fan_mode(u8 fan_mode)1419 static void WMID_gaming_set_fan_mode(u8 fan_mode)
1420 {
1421 /* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
1422 u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
1423 int i;
1424
1425 if (quirks->cpu_fans > 0)
1426 gpu_fan_config2 |= 1;
1427 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1428 gpu_fan_config2 |= 1 << (i + 1);
1429 for (i = 0; i < quirks->gpu_fans; ++i)
1430 gpu_fan_config2 |= 1 << (i + 3);
1431 if (quirks->cpu_fans > 0)
1432 gpu_fan_config1 |= fan_mode;
1433 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1434 gpu_fan_config1 |= fan_mode << (2 * i + 2);
1435 for (i = 0; i < quirks->gpu_fans; ++i)
1436 gpu_fan_config1 |= fan_mode << (2 * i + 6);
1437 WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
1438 }
1439
1440 /*
1441 * Generic Device (interface-independent)
1442 */
1443
get_u32(u32 * value,u32 cap)1444 static acpi_status get_u32(u32 *value, u32 cap)
1445 {
1446 acpi_status status = AE_ERROR;
1447
1448 switch (interface->type) {
1449 case ACER_AMW0:
1450 status = AMW0_get_u32(value, cap);
1451 break;
1452 case ACER_AMW0_V2:
1453 if (cap == ACER_CAP_MAILLED) {
1454 status = AMW0_get_u32(value, cap);
1455 break;
1456 }
1457 fallthrough;
1458 case ACER_WMID:
1459 status = WMID_get_u32(value, cap);
1460 break;
1461 case ACER_WMID_v2:
1462 if (cap & (ACER_CAP_WIRELESS |
1463 ACER_CAP_BLUETOOTH |
1464 ACER_CAP_THREEG))
1465 status = wmid_v2_get_u32(value, cap);
1466 else if (wmi_has_guid(WMID_GUID2))
1467 status = WMID_get_u32(value, cap);
1468 break;
1469 }
1470
1471 return status;
1472 }
1473
set_u32(u32 value,u32 cap)1474 static acpi_status set_u32(u32 value, u32 cap)
1475 {
1476 acpi_status status;
1477
1478 if (interface->capability & cap) {
1479 switch (interface->type) {
1480 case ACER_AMW0:
1481 return AMW0_set_u32(value, cap);
1482 case ACER_AMW0_V2:
1483 if (cap == ACER_CAP_MAILLED)
1484 return AMW0_set_u32(value, cap);
1485
1486 /*
1487 * On some models, some WMID methods don't toggle
1488 * properly. For those cases, we want to run the AMW0
1489 * method afterwards to be certain we've really toggled
1490 * the device state.
1491 */
1492 if (cap == ACER_CAP_WIRELESS ||
1493 cap == ACER_CAP_BLUETOOTH) {
1494 status = WMID_set_u32(value, cap);
1495 if (ACPI_FAILURE(status))
1496 return status;
1497
1498 return AMW0_set_u32(value, cap);
1499 }
1500 fallthrough;
1501 case ACER_WMID:
1502 return WMID_set_u32(value, cap);
1503 case ACER_WMID_v2:
1504 if (cap & (ACER_CAP_WIRELESS |
1505 ACER_CAP_BLUETOOTH |
1506 ACER_CAP_THREEG))
1507 return wmid_v2_set_u32(value, cap);
1508 else if (wmi_has_guid(WMID_GUID2))
1509 return WMID_set_u32(value, cap);
1510 fallthrough;
1511 default:
1512 return AE_BAD_PARAMETER;
1513 }
1514 }
1515 return AE_BAD_PARAMETER;
1516 }
1517
acer_commandline_init(void)1518 static void __init acer_commandline_init(void)
1519 {
1520 /*
1521 * These will all fail silently if the value given is invalid, or the
1522 * capability isn't available on the given interface
1523 */
1524 if (mailled >= 0)
1525 set_u32(mailled, ACER_CAP_MAILLED);
1526 if (!has_type_aa && threeg >= 0)
1527 set_u32(threeg, ACER_CAP_THREEG);
1528 if (brightness >= 0)
1529 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1530 }
1531
1532 /*
1533 * LED device (Mail LED only, no other LEDs known yet)
1534 */
mail_led_set(struct led_classdev * led_cdev,enum led_brightness value)1535 static void mail_led_set(struct led_classdev *led_cdev,
1536 enum led_brightness value)
1537 {
1538 set_u32(value, ACER_CAP_MAILLED);
1539 }
1540
1541 static struct led_classdev mail_led = {
1542 .name = "acer-wmi::mail",
1543 .brightness_set = mail_led_set,
1544 };
1545
acer_led_init(struct device * dev)1546 static int acer_led_init(struct device *dev)
1547 {
1548 return led_classdev_register(dev, &mail_led);
1549 }
1550
acer_led_exit(void)1551 static void acer_led_exit(void)
1552 {
1553 set_u32(LED_OFF, ACER_CAP_MAILLED);
1554 led_classdev_unregister(&mail_led);
1555 }
1556
1557 /*
1558 * Backlight device
1559 */
1560 static struct backlight_device *acer_backlight_device;
1561
read_brightness(struct backlight_device * bd)1562 static int read_brightness(struct backlight_device *bd)
1563 {
1564 u32 value;
1565 get_u32(&value, ACER_CAP_BRIGHTNESS);
1566 return value;
1567 }
1568
update_bl_status(struct backlight_device * bd)1569 static int update_bl_status(struct backlight_device *bd)
1570 {
1571 int intensity = backlight_get_brightness(bd);
1572
1573 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1574
1575 return 0;
1576 }
1577
1578 static const struct backlight_ops acer_bl_ops = {
1579 .get_brightness = read_brightness,
1580 .update_status = update_bl_status,
1581 };
1582
acer_backlight_init(struct device * dev)1583 static int acer_backlight_init(struct device *dev)
1584 {
1585 struct backlight_properties props;
1586 struct backlight_device *bd;
1587
1588 memset(&props, 0, sizeof(struct backlight_properties));
1589 props.type = BACKLIGHT_PLATFORM;
1590 props.max_brightness = max_brightness;
1591 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1592 &props);
1593 if (IS_ERR(bd)) {
1594 pr_err("Could not register Acer backlight device\n");
1595 acer_backlight_device = NULL;
1596 return PTR_ERR(bd);
1597 }
1598
1599 acer_backlight_device = bd;
1600
1601 bd->props.power = FB_BLANK_UNBLANK;
1602 bd->props.brightness = read_brightness(bd);
1603 backlight_update_status(bd);
1604 return 0;
1605 }
1606
acer_backlight_exit(void)1607 static void acer_backlight_exit(void)
1608 {
1609 backlight_device_unregister(acer_backlight_device);
1610 }
1611
1612 /*
1613 * Accelerometer device
1614 */
1615 static acpi_handle gsensor_handle;
1616
acer_gsensor_init(void)1617 static int acer_gsensor_init(void)
1618 {
1619 acpi_status status;
1620 struct acpi_buffer output;
1621 union acpi_object out_obj;
1622
1623 output.length = sizeof(out_obj);
1624 output.pointer = &out_obj;
1625 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1626 if (ACPI_FAILURE(status))
1627 return -1;
1628
1629 return 0;
1630 }
1631
acer_gsensor_open(struct input_dev * input)1632 static int acer_gsensor_open(struct input_dev *input)
1633 {
1634 return acer_gsensor_init();
1635 }
1636
acer_gsensor_event(void)1637 static int acer_gsensor_event(void)
1638 {
1639 acpi_status status;
1640 struct acpi_buffer output;
1641 union acpi_object out_obj[5];
1642
1643 if (!acer_wmi_accel_dev)
1644 return -1;
1645
1646 output.length = sizeof(out_obj);
1647 output.pointer = out_obj;
1648
1649 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1650 if (ACPI_FAILURE(status))
1651 return -1;
1652
1653 if (out_obj->package.count != 4)
1654 return -1;
1655
1656 input_report_abs(acer_wmi_accel_dev, ABS_X,
1657 (s16)out_obj->package.elements[0].integer.value);
1658 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1659 (s16)out_obj->package.elements[1].integer.value);
1660 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1661 (s16)out_obj->package.elements[2].integer.value);
1662 input_sync(acer_wmi_accel_dev);
1663 return 0;
1664 }
1665
1666 /*
1667 * Predator series turbo button
1668 */
acer_toggle_turbo(void)1669 static int acer_toggle_turbo(void)
1670 {
1671 u64 turbo_led_state;
1672
1673 /* Get current state from turbo button */
1674 if (ACPI_FAILURE(WMID_gaming_get_u64(&turbo_led_state, ACER_CAP_TURBO_LED)))
1675 return -1;
1676
1677 if (turbo_led_state) {
1678 /* Turn off turbo led */
1679 WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
1680
1681 /* Set FAN mode to auto */
1682 WMID_gaming_set_fan_mode(0x1);
1683
1684 /* Set OC to normal */
1685 WMID_gaming_set_u64(0x5, ACER_CAP_TURBO_OC);
1686 WMID_gaming_set_u64(0x7, ACER_CAP_TURBO_OC);
1687 } else {
1688 /* Turn on turbo led */
1689 WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
1690
1691 /* Set FAN mode to turbo */
1692 WMID_gaming_set_fan_mode(0x2);
1693
1694 /* Set OC to turbo mode */
1695 WMID_gaming_set_u64(0x205, ACER_CAP_TURBO_OC);
1696 WMID_gaming_set_u64(0x207, ACER_CAP_TURBO_OC);
1697 }
1698 return turbo_led_state;
1699 }
1700
1701 /*
1702 * Switch series keyboard dock status
1703 */
acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)1704 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1705 {
1706 switch (kbd_dock_state) {
1707 case 0x01: /* Docked, traditional clamshell laptop mode */
1708 return 0;
1709 case 0x04: /* Stand-alone tablet */
1710 case 0x40: /* Docked, tent mode, keyboard not usable */
1711 return 1;
1712 default:
1713 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1714 }
1715
1716 return 0;
1717 }
1718
acer_kbd_dock_get_initial_state(void)1719 static void acer_kbd_dock_get_initial_state(void)
1720 {
1721 u8 *output, input[8] = { 0x05, 0x00, };
1722 struct acpi_buffer input_buf = { sizeof(input), input };
1723 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1724 union acpi_object *obj;
1725 acpi_status status;
1726 int sw_tablet_mode;
1727
1728 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1729 if (ACPI_FAILURE(status)) {
1730 pr_err("Error getting keyboard-dock initial status: %s\n",
1731 acpi_format_exception(status));
1732 return;
1733 }
1734
1735 obj = output_buf.pointer;
1736 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1737 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1738 goto out_free_obj;
1739 }
1740
1741 output = obj->buffer.pointer;
1742 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1743 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1744 output[0], output[3]);
1745 goto out_free_obj;
1746 }
1747
1748 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1749 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1750
1751 out_free_obj:
1752 kfree(obj);
1753 }
1754
acer_kbd_dock_event(const struct event_return_value * event)1755 static void acer_kbd_dock_event(const struct event_return_value *event)
1756 {
1757 int sw_tablet_mode;
1758
1759 if (!has_cap(ACER_CAP_KBD_DOCK))
1760 return;
1761
1762 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1763 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1764 input_sync(acer_wmi_input_dev);
1765 }
1766
1767 /*
1768 * Rfkill devices
1769 */
1770 static void acer_rfkill_update(struct work_struct *ignored);
1771 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
acer_rfkill_update(struct work_struct * ignored)1772 static void acer_rfkill_update(struct work_struct *ignored)
1773 {
1774 u32 state;
1775 acpi_status status;
1776
1777 if (has_cap(ACER_CAP_WIRELESS)) {
1778 status = get_u32(&state, ACER_CAP_WIRELESS);
1779 if (ACPI_SUCCESS(status)) {
1780 if (quirks->wireless == 3)
1781 rfkill_set_hw_state(wireless_rfkill, !state);
1782 else
1783 rfkill_set_sw_state(wireless_rfkill, !state);
1784 }
1785 }
1786
1787 if (has_cap(ACER_CAP_BLUETOOTH)) {
1788 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1789 if (ACPI_SUCCESS(status))
1790 rfkill_set_sw_state(bluetooth_rfkill, !state);
1791 }
1792
1793 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1794 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1795 if (ACPI_SUCCESS(status))
1796 rfkill_set_sw_state(threeg_rfkill, !state);
1797 }
1798
1799 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1800 }
1801
acer_rfkill_set(void * data,bool blocked)1802 static int acer_rfkill_set(void *data, bool blocked)
1803 {
1804 acpi_status status;
1805 u32 cap = (unsigned long)data;
1806
1807 if (rfkill_inited) {
1808 status = set_u32(!blocked, cap);
1809 if (ACPI_FAILURE(status))
1810 return -ENODEV;
1811 }
1812
1813 return 0;
1814 }
1815
1816 static const struct rfkill_ops acer_rfkill_ops = {
1817 .set_block = acer_rfkill_set,
1818 };
1819
acer_rfkill_register(struct device * dev,enum rfkill_type type,char * name,u32 cap)1820 static struct rfkill *acer_rfkill_register(struct device *dev,
1821 enum rfkill_type type,
1822 char *name, u32 cap)
1823 {
1824 int err;
1825 struct rfkill *rfkill_dev;
1826 u32 state;
1827 acpi_status status;
1828
1829 rfkill_dev = rfkill_alloc(name, dev, type,
1830 &acer_rfkill_ops,
1831 (void *)(unsigned long)cap);
1832 if (!rfkill_dev)
1833 return ERR_PTR(-ENOMEM);
1834
1835 status = get_u32(&state, cap);
1836
1837 err = rfkill_register(rfkill_dev);
1838 if (err) {
1839 rfkill_destroy(rfkill_dev);
1840 return ERR_PTR(err);
1841 }
1842
1843 if (ACPI_SUCCESS(status))
1844 rfkill_set_sw_state(rfkill_dev, !state);
1845
1846 return rfkill_dev;
1847 }
1848
acer_rfkill_init(struct device * dev)1849 static int acer_rfkill_init(struct device *dev)
1850 {
1851 int err;
1852
1853 if (has_cap(ACER_CAP_WIRELESS)) {
1854 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1855 "acer-wireless", ACER_CAP_WIRELESS);
1856 if (IS_ERR(wireless_rfkill)) {
1857 err = PTR_ERR(wireless_rfkill);
1858 goto error_wireless;
1859 }
1860 }
1861
1862 if (has_cap(ACER_CAP_BLUETOOTH)) {
1863 bluetooth_rfkill = acer_rfkill_register(dev,
1864 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1865 ACER_CAP_BLUETOOTH);
1866 if (IS_ERR(bluetooth_rfkill)) {
1867 err = PTR_ERR(bluetooth_rfkill);
1868 goto error_bluetooth;
1869 }
1870 }
1871
1872 if (has_cap(ACER_CAP_THREEG)) {
1873 threeg_rfkill = acer_rfkill_register(dev,
1874 RFKILL_TYPE_WWAN, "acer-threeg",
1875 ACER_CAP_THREEG);
1876 if (IS_ERR(threeg_rfkill)) {
1877 err = PTR_ERR(threeg_rfkill);
1878 goto error_threeg;
1879 }
1880 }
1881
1882 rfkill_inited = true;
1883
1884 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1885 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1886 schedule_delayed_work(&acer_rfkill_work,
1887 round_jiffies_relative(HZ));
1888
1889 return 0;
1890
1891 error_threeg:
1892 if (has_cap(ACER_CAP_BLUETOOTH)) {
1893 rfkill_unregister(bluetooth_rfkill);
1894 rfkill_destroy(bluetooth_rfkill);
1895 }
1896 error_bluetooth:
1897 if (has_cap(ACER_CAP_WIRELESS)) {
1898 rfkill_unregister(wireless_rfkill);
1899 rfkill_destroy(wireless_rfkill);
1900 }
1901 error_wireless:
1902 return err;
1903 }
1904
acer_rfkill_exit(void)1905 static void acer_rfkill_exit(void)
1906 {
1907 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1908 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1909 cancel_delayed_work_sync(&acer_rfkill_work);
1910
1911 if (has_cap(ACER_CAP_WIRELESS)) {
1912 rfkill_unregister(wireless_rfkill);
1913 rfkill_destroy(wireless_rfkill);
1914 }
1915
1916 if (has_cap(ACER_CAP_BLUETOOTH)) {
1917 rfkill_unregister(bluetooth_rfkill);
1918 rfkill_destroy(bluetooth_rfkill);
1919 }
1920
1921 if (has_cap(ACER_CAP_THREEG)) {
1922 rfkill_unregister(threeg_rfkill);
1923 rfkill_destroy(threeg_rfkill);
1924 }
1925 return;
1926 }
1927
acer_wmi_notify(u32 value,void * context)1928 static void acer_wmi_notify(u32 value, void *context)
1929 {
1930 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1931 union acpi_object *obj;
1932 struct event_return_value return_value;
1933 acpi_status status;
1934 u16 device_state;
1935 const struct key_entry *key;
1936 u32 scancode;
1937
1938 status = wmi_get_event_data(value, &response);
1939 if (status != AE_OK) {
1940 pr_warn("bad event status 0x%x\n", status);
1941 return;
1942 }
1943
1944 obj = (union acpi_object *)response.pointer;
1945
1946 if (!obj)
1947 return;
1948 if (obj->type != ACPI_TYPE_BUFFER) {
1949 pr_warn("Unknown response received %d\n", obj->type);
1950 kfree(obj);
1951 return;
1952 }
1953 if (obj->buffer.length != 8) {
1954 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1955 kfree(obj);
1956 return;
1957 }
1958
1959 return_value = *((struct event_return_value *)obj->buffer.pointer);
1960 kfree(obj);
1961
1962 switch (return_value.function) {
1963 case WMID_HOTKEY_EVENT:
1964 device_state = return_value.device_state;
1965 pr_debug("device state: 0x%x\n", device_state);
1966
1967 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1968 return_value.key_num);
1969 if (!key) {
1970 pr_warn("Unknown key number - 0x%x\n",
1971 return_value.key_num);
1972 } else {
1973 scancode = return_value.key_num;
1974 switch (key->keycode) {
1975 case KEY_WLAN:
1976 case KEY_BLUETOOTH:
1977 if (has_cap(ACER_CAP_WIRELESS))
1978 rfkill_set_sw_state(wireless_rfkill,
1979 !(device_state & ACER_WMID3_GDS_WIRELESS));
1980 if (has_cap(ACER_CAP_THREEG))
1981 rfkill_set_sw_state(threeg_rfkill,
1982 !(device_state & ACER_WMID3_GDS_THREEG));
1983 if (has_cap(ACER_CAP_BLUETOOTH))
1984 rfkill_set_sw_state(bluetooth_rfkill,
1985 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1986 break;
1987 case KEY_TOUCHPAD_TOGGLE:
1988 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1989 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1990 }
1991 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1992 }
1993 break;
1994 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1995 acer_gsensor_event();
1996 acer_kbd_dock_event(&return_value);
1997 break;
1998 case WMID_GAMING_TURBO_KEY_EVENT:
1999 if (return_value.key_num == 0x4)
2000 acer_toggle_turbo();
2001 break;
2002 default:
2003 pr_warn("Unknown function number - %d - %d\n",
2004 return_value.function, return_value.key_num);
2005 break;
2006 }
2007 }
2008
2009 static acpi_status __init
wmid3_set_function_mode(struct func_input_params * params,struct func_return_value * return_value)2010 wmid3_set_function_mode(struct func_input_params *params,
2011 struct func_return_value *return_value)
2012 {
2013 acpi_status status;
2014 union acpi_object *obj;
2015
2016 struct acpi_buffer input = { sizeof(struct func_input_params), params };
2017 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
2018
2019 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
2020 if (ACPI_FAILURE(status))
2021 return status;
2022
2023 obj = output.pointer;
2024
2025 if (!obj)
2026 return AE_ERROR;
2027 else if (obj->type != ACPI_TYPE_BUFFER) {
2028 kfree(obj);
2029 return AE_ERROR;
2030 }
2031 if (obj->buffer.length != 4) {
2032 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2033 kfree(obj);
2034 return AE_ERROR;
2035 }
2036
2037 *return_value = *((struct func_return_value *)obj->buffer.pointer);
2038 kfree(obj);
2039
2040 return status;
2041 }
2042
acer_wmi_enable_ec_raw(void)2043 static int __init acer_wmi_enable_ec_raw(void)
2044 {
2045 struct func_return_value return_value;
2046 acpi_status status;
2047 struct func_input_params params = {
2048 .function_num = 0x1,
2049 .commun_devices = 0xFFFF,
2050 .devices = 0xFFFF,
2051 .app_status = 0x00, /* Launch Manager Deactive */
2052 .app_mask = 0x01,
2053 };
2054
2055 status = wmid3_set_function_mode(¶ms, &return_value);
2056
2057 if (return_value.error_code || return_value.ec_return_value)
2058 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
2059 return_value.error_code,
2060 return_value.ec_return_value);
2061 else
2062 pr_info("Enabled EC raw mode\n");
2063
2064 return status;
2065 }
2066
acer_wmi_enable_lm(void)2067 static int __init acer_wmi_enable_lm(void)
2068 {
2069 struct func_return_value return_value;
2070 acpi_status status;
2071 struct func_input_params params = {
2072 .function_num = 0x1,
2073 .commun_devices = 0xFFFF,
2074 .devices = 0xFFFF,
2075 .app_status = 0x01, /* Launch Manager Active */
2076 .app_mask = 0x01,
2077 };
2078
2079 status = wmid3_set_function_mode(¶ms, &return_value);
2080
2081 if (return_value.error_code || return_value.ec_return_value)
2082 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
2083 return_value.error_code,
2084 return_value.ec_return_value);
2085
2086 return status;
2087 }
2088
acer_wmi_enable_rf_button(void)2089 static int __init acer_wmi_enable_rf_button(void)
2090 {
2091 struct func_return_value return_value;
2092 acpi_status status;
2093 struct func_input_params params = {
2094 .function_num = 0x1,
2095 .commun_devices = 0xFFFF,
2096 .devices = 0xFFFF,
2097 .app_status = 0x10, /* RF Button Active */
2098 .app_mask = 0x10,
2099 };
2100
2101 status = wmid3_set_function_mode(¶ms, &return_value);
2102
2103 if (return_value.error_code || return_value.ec_return_value)
2104 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2105 return_value.error_code,
2106 return_value.ec_return_value);
2107
2108 return status;
2109 }
2110
acer_wmi_accel_setup(void)2111 static int __init acer_wmi_accel_setup(void)
2112 {
2113 struct acpi_device *adev;
2114 int err;
2115
2116 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2117 if (!adev)
2118 return -ENODEV;
2119
2120 gsensor_handle = acpi_device_handle(adev);
2121 acpi_dev_put(adev);
2122
2123 acer_wmi_accel_dev = input_allocate_device();
2124 if (!acer_wmi_accel_dev)
2125 return -ENOMEM;
2126
2127 acer_wmi_accel_dev->open = acer_gsensor_open;
2128
2129 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2130 acer_wmi_accel_dev->phys = "wmi/input1";
2131 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2132 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2133 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2134 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2135 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2136
2137 err = input_register_device(acer_wmi_accel_dev);
2138 if (err)
2139 goto err_free_dev;
2140
2141 return 0;
2142
2143 err_free_dev:
2144 input_free_device(acer_wmi_accel_dev);
2145 return err;
2146 }
2147
acer_wmi_input_setup(void)2148 static int __init acer_wmi_input_setup(void)
2149 {
2150 acpi_status status;
2151 int err;
2152
2153 acer_wmi_input_dev = input_allocate_device();
2154 if (!acer_wmi_input_dev)
2155 return -ENOMEM;
2156
2157 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2158 acer_wmi_input_dev->phys = "wmi/input0";
2159 acer_wmi_input_dev->id.bustype = BUS_HOST;
2160
2161 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2162 if (err)
2163 goto err_free_dev;
2164
2165 if (has_cap(ACER_CAP_KBD_DOCK))
2166 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2167
2168 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2169 acer_wmi_notify, NULL);
2170 if (ACPI_FAILURE(status)) {
2171 err = -EIO;
2172 goto err_free_dev;
2173 }
2174
2175 if (has_cap(ACER_CAP_KBD_DOCK))
2176 acer_kbd_dock_get_initial_state();
2177
2178 err = input_register_device(acer_wmi_input_dev);
2179 if (err)
2180 goto err_uninstall_notifier;
2181
2182 return 0;
2183
2184 err_uninstall_notifier:
2185 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2186 err_free_dev:
2187 input_free_device(acer_wmi_input_dev);
2188 return err;
2189 }
2190
acer_wmi_input_destroy(void)2191 static void acer_wmi_input_destroy(void)
2192 {
2193 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2194 input_unregister_device(acer_wmi_input_dev);
2195 }
2196
2197 /*
2198 * debugfs functions
2199 */
get_wmid_devices(void)2200 static u32 get_wmid_devices(void)
2201 {
2202 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2203 union acpi_object *obj;
2204 acpi_status status;
2205 u32 devices = 0;
2206
2207 status = wmi_query_block(WMID_GUID2, 0, &out);
2208 if (ACPI_FAILURE(status))
2209 return 0;
2210
2211 obj = (union acpi_object *) out.pointer;
2212 if (obj) {
2213 if (obj->type == ACPI_TYPE_BUFFER &&
2214 (obj->buffer.length == sizeof(u32) ||
2215 obj->buffer.length == sizeof(u64))) {
2216 devices = *((u32 *) obj->buffer.pointer);
2217 } else if (obj->type == ACPI_TYPE_INTEGER) {
2218 devices = (u32) obj->integer.value;
2219 }
2220 }
2221
2222 kfree(out.pointer);
2223 return devices;
2224 }
2225
2226 /*
2227 * Platform device
2228 */
acer_platform_probe(struct platform_device * device)2229 static int acer_platform_probe(struct platform_device *device)
2230 {
2231 int err;
2232
2233 if (has_cap(ACER_CAP_MAILLED)) {
2234 err = acer_led_init(&device->dev);
2235 if (err)
2236 goto error_mailled;
2237 }
2238
2239 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2240 err = acer_backlight_init(&device->dev);
2241 if (err)
2242 goto error_brightness;
2243 }
2244
2245 err = acer_rfkill_init(&device->dev);
2246 if (err)
2247 goto error_rfkill;
2248
2249 return err;
2250
2251 error_rfkill:
2252 if (has_cap(ACER_CAP_BRIGHTNESS))
2253 acer_backlight_exit();
2254 error_brightness:
2255 if (has_cap(ACER_CAP_MAILLED))
2256 acer_led_exit();
2257 error_mailled:
2258 return err;
2259 }
2260
acer_platform_remove(struct platform_device * device)2261 static void acer_platform_remove(struct platform_device *device)
2262 {
2263 if (has_cap(ACER_CAP_MAILLED))
2264 acer_led_exit();
2265 if (has_cap(ACER_CAP_BRIGHTNESS))
2266 acer_backlight_exit();
2267
2268 acer_rfkill_exit();
2269 }
2270
2271 #ifdef CONFIG_PM_SLEEP
acer_suspend(struct device * dev)2272 static int acer_suspend(struct device *dev)
2273 {
2274 u32 value;
2275 struct acer_data *data = &interface->data;
2276
2277 if (!data)
2278 return -ENOMEM;
2279
2280 if (has_cap(ACER_CAP_MAILLED)) {
2281 get_u32(&value, ACER_CAP_MAILLED);
2282 set_u32(LED_OFF, ACER_CAP_MAILLED);
2283 data->mailled = value;
2284 }
2285
2286 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2287 get_u32(&value, ACER_CAP_BRIGHTNESS);
2288 data->brightness = value;
2289 }
2290
2291 return 0;
2292 }
2293
acer_resume(struct device * dev)2294 static int acer_resume(struct device *dev)
2295 {
2296 struct acer_data *data = &interface->data;
2297
2298 if (!data)
2299 return -ENOMEM;
2300
2301 if (has_cap(ACER_CAP_MAILLED))
2302 set_u32(data->mailled, ACER_CAP_MAILLED);
2303
2304 if (has_cap(ACER_CAP_BRIGHTNESS))
2305 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2306
2307 if (acer_wmi_accel_dev)
2308 acer_gsensor_init();
2309
2310 return 0;
2311 }
2312 #else
2313 #define acer_suspend NULL
2314 #define acer_resume NULL
2315 #endif
2316
2317 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2318
acer_platform_shutdown(struct platform_device * device)2319 static void acer_platform_shutdown(struct platform_device *device)
2320 {
2321 struct acer_data *data = &interface->data;
2322
2323 if (!data)
2324 return;
2325
2326 if (has_cap(ACER_CAP_MAILLED))
2327 set_u32(LED_OFF, ACER_CAP_MAILLED);
2328 }
2329
2330 static struct platform_driver acer_platform_driver = {
2331 .driver = {
2332 .name = "acer-wmi",
2333 .pm = &acer_pm,
2334 },
2335 .probe = acer_platform_probe,
2336 .remove_new = acer_platform_remove,
2337 .shutdown = acer_platform_shutdown,
2338 };
2339
2340 static struct platform_device *acer_platform_device;
2341
remove_debugfs(void)2342 static void remove_debugfs(void)
2343 {
2344 debugfs_remove_recursive(interface->debug.root);
2345 }
2346
create_debugfs(void)2347 static void __init create_debugfs(void)
2348 {
2349 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2350
2351 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2352 &interface->debug.wmid_devices);
2353 }
2354
acer_wmi_init(void)2355 static int __init acer_wmi_init(void)
2356 {
2357 int err;
2358
2359 pr_info("Acer Laptop ACPI-WMI Extras\n");
2360
2361 if (dmi_check_system(acer_blacklist)) {
2362 pr_info("Blacklisted hardware detected - not loading\n");
2363 return -ENODEV;
2364 }
2365
2366 find_quirks();
2367
2368 /*
2369 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2370 * machines like Lenovo, Fujitsu and Medion. In the past days,
2371 * acer-wmi driver handled those non-Acer machines by quirks list.
2372 * But actually acer-wmi driver was loaded on any machines that have
2373 * AMW0_GUID1. This behavior is strange because those machines should
2374 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2375 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2376 * should be in Acer/Gateway/Packard Bell white list, or it's already
2377 * in the past quirk list.
2378 */
2379 if (wmi_has_guid(AMW0_GUID1) &&
2380 !dmi_check_system(amw0_whitelist) &&
2381 quirks == &quirk_unknown) {
2382 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2383 return -ENODEV;
2384 }
2385
2386 /*
2387 * Detect which ACPI-WMI interface we're using.
2388 */
2389 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2390 interface = &AMW0_V2_interface;
2391
2392 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2393 interface = &wmid_interface;
2394
2395 if (wmi_has_guid(WMID_GUID3))
2396 interface = &wmid_v2_interface;
2397
2398 if (interface)
2399 dmi_walk(type_aa_dmi_decode, NULL);
2400
2401 if (wmi_has_guid(WMID_GUID2) && interface) {
2402 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2403 pr_err("Unable to detect available WMID devices\n");
2404 return -ENODEV;
2405 }
2406 /* WMID always provides brightness methods */
2407 interface->capability |= ACER_CAP_BRIGHTNESS;
2408 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2409 pr_err("No WMID device detection method found\n");
2410 return -ENODEV;
2411 }
2412
2413 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2414 interface = &AMW0_interface;
2415
2416 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2417 pr_err("Unable to detect available AMW0 devices\n");
2418 return -ENODEV;
2419 }
2420 }
2421
2422 if (wmi_has_guid(AMW0_GUID1))
2423 AMW0_find_mailled();
2424
2425 if (!interface) {
2426 pr_err("No or unsupported WMI interface, unable to load\n");
2427 return -ENODEV;
2428 }
2429
2430 set_quirks();
2431
2432 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2433 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2434
2435 if (wmi_has_guid(WMID_GUID3))
2436 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2437
2438 if (force_caps != -1)
2439 interface->capability = force_caps;
2440
2441 if (wmi_has_guid(WMID_GUID3) &&
2442 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2443 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2444 pr_warn("Cannot enable RF Button Driver\n");
2445
2446 if (ec_raw_mode) {
2447 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2448 pr_err("Cannot enable EC raw mode\n");
2449 return -ENODEV;
2450 }
2451 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2452 pr_err("Cannot enable Launch Manager mode\n");
2453 return -ENODEV;
2454 }
2455 } else if (ec_raw_mode) {
2456 pr_info("No WMID EC raw mode enable method\n");
2457 }
2458
2459 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2460 err = acer_wmi_input_setup();
2461 if (err)
2462 return err;
2463 err = acer_wmi_accel_setup();
2464 if (err && err != -ENODEV)
2465 pr_warn("Cannot enable accelerometer\n");
2466 }
2467
2468 err = platform_driver_register(&acer_platform_driver);
2469 if (err) {
2470 pr_err("Unable to register platform driver\n");
2471 goto error_platform_register;
2472 }
2473
2474 acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2475 if (!acer_platform_device) {
2476 err = -ENOMEM;
2477 goto error_device_alloc;
2478 }
2479
2480 err = platform_device_add(acer_platform_device);
2481 if (err)
2482 goto error_device_add;
2483
2484 if (wmi_has_guid(WMID_GUID2)) {
2485 interface->debug.wmid_devices = get_wmid_devices();
2486 create_debugfs();
2487 }
2488
2489 /* Override any initial settings with values from the commandline */
2490 acer_commandline_init();
2491
2492 return 0;
2493
2494 error_device_add:
2495 platform_device_put(acer_platform_device);
2496 error_device_alloc:
2497 platform_driver_unregister(&acer_platform_driver);
2498 error_platform_register:
2499 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2500 acer_wmi_input_destroy();
2501 if (acer_wmi_accel_dev)
2502 input_unregister_device(acer_wmi_accel_dev);
2503
2504 return err;
2505 }
2506
acer_wmi_exit(void)2507 static void __exit acer_wmi_exit(void)
2508 {
2509 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2510 acer_wmi_input_destroy();
2511
2512 if (acer_wmi_accel_dev)
2513 input_unregister_device(acer_wmi_accel_dev);
2514
2515 remove_debugfs();
2516 platform_device_unregister(acer_platform_device);
2517 platform_driver_unregister(&acer_platform_driver);
2518
2519 pr_info("Acer Laptop WMI Extras unloaded\n");
2520 return;
2521 }
2522
2523 module_init(acer_wmi_init);
2524 module_exit(acer_wmi_exit);
2525