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 WMID_AC_EVENT = 0x8,
92 };
93
94 static const struct key_entry acer_wmi_keymap[] __initconst = {
95 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
96 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
97 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
98 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
99 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
100 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
101 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
102 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
103 {KE_KEY, 0x27, {KEY_HELP} },
104 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
105 {KE_IGNORE, 0x41, {KEY_MUTE} },
106 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
107 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
108 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
109 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
110 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
111 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
112 {KE_IGNORE, 0x45, {KEY_STOP} },
113 {KE_IGNORE, 0x50, {KEY_STOP} },
114 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
115 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
116 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
117 /*
118 * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
119 * with the "Video Bus" input device events. But sometimes it is not
120 * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
121 * udev/hwdb can override it on systems where it is not a dup.
122 */
123 {KE_KEY, 0x61, {KEY_UNKNOWN} },
124 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
125 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
126 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
127 {KE_IGNORE, 0x81, {KEY_SLEEP} },
128 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
129 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
130 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
131 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
132 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
133 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
134 {KE_KEY, 0x86, {KEY_WLAN} },
135 {KE_KEY, 0x87, {KEY_POWER} },
136 {KE_END, 0}
137 };
138
139 static struct input_dev *acer_wmi_input_dev;
140 static struct input_dev *acer_wmi_accel_dev;
141
142 struct event_return_value {
143 u8 function;
144 u8 key_num;
145 u16 device_state;
146 u16 reserved1;
147 u8 kbd_dock_state;
148 u8 reserved2;
149 } __packed;
150
151 /*
152 * GUID3 Get Device Status device flags
153 */
154 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
155 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
156 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
157 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
158 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
159
160 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
161
162 /* Hotkey Customized Setting and Acer Application Status.
163 * Set Device Default Value and Report Acer Application Status.
164 * When Acer Application starts, it will run this method to inform
165 * BIOS/EC that Acer Application is on.
166 * App Status
167 * Bit[0]: Launch Manager Status
168 * Bit[1]: ePM Status
169 * Bit[2]: Device Control Status
170 * Bit[3]: Acer Power Button Utility Status
171 * Bit[4]: RF Button Status
172 * Bit[5]: ODD PM Status
173 * Bit[6]: Device Default Value Control
174 * Bit[7]: Hall Sensor Application Status
175 */
176 struct func_input_params {
177 u8 function_num; /* Function Number */
178 u16 commun_devices; /* Communication type devices default status */
179 u16 devices; /* Other type devices default status */
180 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
181 u8 app_mask; /* Bit mask to app_status */
182 u8 reserved;
183 } __packed;
184
185 struct func_return_value {
186 u8 error_code; /* Error Code */
187 u8 ec_return_value; /* EC Return Value */
188 u16 reserved;
189 } __packed;
190
191 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
192 u8 function_num; /* Function Number */
193 u8 hotkey_number; /* Hotkey Number */
194 u16 devices; /* Set Device */
195 u8 volume_value; /* Volume Value */
196 } __packed;
197
198 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
199 u8 function_num; /* Function Number */
200 u8 hotkey_number; /* Hotkey Number */
201 u16 devices; /* Get Device */
202 } __packed;
203
204 struct wmid3_gds_return_value { /* Get Device Status return value*/
205 u8 error_code; /* Error Code */
206 u8 ec_return_value; /* EC Return Value */
207 u16 devices; /* Current Device Status */
208 u32 reserved;
209 } __packed;
210
211 struct hotkey_function_type_aa {
212 u8 type;
213 u8 length;
214 u16 handle;
215 u16 commun_func_bitmap;
216 u16 application_func_bitmap;
217 u16 media_func_bitmap;
218 u16 display_func_bitmap;
219 u16 others_func_bitmap;
220 u8 commun_fn_key_number;
221 } __packed;
222
223 /*
224 * Interface capability flags
225 */
226 #define ACER_CAP_MAILLED BIT(0)
227 #define ACER_CAP_WIRELESS BIT(1)
228 #define ACER_CAP_BLUETOOTH BIT(2)
229 #define ACER_CAP_BRIGHTNESS BIT(3)
230 #define ACER_CAP_THREEG BIT(4)
231 #define ACER_CAP_SET_FUNCTION_MODE BIT(5)
232 #define ACER_CAP_KBD_DOCK BIT(6)
233 #define ACER_CAP_TURBO_OC BIT(7)
234 #define ACER_CAP_TURBO_LED BIT(8)
235 #define ACER_CAP_TURBO_FAN BIT(9)
236
237 /*
238 * Interface type flags
239 */
240 enum interface_flags {
241 ACER_AMW0,
242 ACER_AMW0_V2,
243 ACER_WMID,
244 ACER_WMID_v2,
245 };
246
247 #define ACER_DEFAULT_WIRELESS 0
248 #define ACER_DEFAULT_BLUETOOTH 0
249 #define ACER_DEFAULT_MAILLED 0
250 #define ACER_DEFAULT_THREEG 0
251
252 static int max_brightness = 0xF;
253
254 static int mailled = -1;
255 static int brightness = -1;
256 static int threeg = -1;
257 static int force_series;
258 static int force_caps = -1;
259 static bool ec_raw_mode;
260 static bool has_type_aa;
261 static u16 commun_func_bitmap;
262 static u8 commun_fn_key_number;
263
264 module_param(mailled, int, 0444);
265 module_param(brightness, int, 0444);
266 module_param(threeg, int, 0444);
267 module_param(force_series, int, 0444);
268 module_param(force_caps, int, 0444);
269 module_param(ec_raw_mode, bool, 0444);
270 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
271 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
272 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
273 MODULE_PARM_DESC(force_series, "Force a different laptop series");
274 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
275 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
276
277 struct acer_data {
278 int mailled;
279 int threeg;
280 int brightness;
281 };
282
283 struct acer_debug {
284 struct dentry *root;
285 u32 wmid_devices;
286 };
287
288 static struct rfkill *wireless_rfkill;
289 static struct rfkill *bluetooth_rfkill;
290 static struct rfkill *threeg_rfkill;
291 static bool rfkill_inited;
292
293 /* Each low-level interface must define at least some of the following */
294 struct wmi_interface {
295 /* The WMI device type */
296 u32 type;
297
298 /* The capabilities this interface provides */
299 u32 capability;
300
301 /* Private data for the current interface */
302 struct acer_data data;
303
304 /* debugfs entries associated with this interface */
305 struct acer_debug debug;
306 };
307
308 /* The static interface pointer, points to the currently detected interface */
309 static struct wmi_interface *interface;
310
311 /*
312 * Embedded Controller quirks
313 * Some laptops require us to directly access the EC to either enable or query
314 * features that are not available through WMI.
315 */
316
317 struct quirk_entry {
318 u8 wireless;
319 u8 mailled;
320 s8 brightness;
321 u8 bluetooth;
322 u8 turbo;
323 u8 cpu_fans;
324 u8 gpu_fans;
325 };
326
327 static struct quirk_entry *quirks;
328
set_quirks(void)329 static void __init set_quirks(void)
330 {
331 if (quirks->mailled)
332 interface->capability |= ACER_CAP_MAILLED;
333
334 if (quirks->brightness)
335 interface->capability |= ACER_CAP_BRIGHTNESS;
336
337 if (quirks->turbo)
338 interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
339 | ACER_CAP_TURBO_FAN;
340 }
341
dmi_matched(const struct dmi_system_id * dmi)342 static int __init dmi_matched(const struct dmi_system_id *dmi)
343 {
344 quirks = dmi->driver_data;
345 return 1;
346 }
347
set_force_caps(const struct dmi_system_id * dmi)348 static int __init set_force_caps(const struct dmi_system_id *dmi)
349 {
350 if (force_caps == -1) {
351 force_caps = (uintptr_t)dmi->driver_data;
352 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
353 }
354 return 1;
355 }
356
357 static struct quirk_entry quirk_unknown = {
358 };
359
360 static struct quirk_entry quirk_acer_aspire_1520 = {
361 .brightness = -1,
362 };
363
364 static struct quirk_entry quirk_acer_travelmate_2490 = {
365 .mailled = 1,
366 };
367
368 static struct quirk_entry quirk_acer_predator_ph315_53 = {
369 .turbo = 1,
370 .cpu_fans = 1,
371 .gpu_fans = 1,
372 };
373
374 /* This AMW0 laptop has no bluetooth */
375 static struct quirk_entry quirk_medion_md_98300 = {
376 .wireless = 1,
377 };
378
379 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
380 .wireless = 2,
381 };
382
383 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
384 .wireless = 3,
385 };
386
387 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
388 static const struct dmi_system_id acer_blacklist[] __initconst = {
389 {
390 .ident = "Acer Aspire One (SSD)",
391 .matches = {
392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
394 },
395 },
396 {
397 .ident = "Acer Aspire One (HDD)",
398 .matches = {
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
401 },
402 },
403 {}
404 };
405
406 static const struct dmi_system_id amw0_whitelist[] __initconst = {
407 {
408 .ident = "Acer",
409 .matches = {
410 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
411 },
412 },
413 {
414 .ident = "Gateway",
415 .matches = {
416 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
417 },
418 },
419 {
420 .ident = "Packard Bell",
421 .matches = {
422 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
423 },
424 },
425 {}
426 };
427
428 /*
429 * This quirk table is only for Acer/Gateway/Packard Bell family
430 * that those machines are supported by acer-wmi driver.
431 */
432 static const struct dmi_system_id acer_quirks[] __initconst = {
433 {
434 .callback = dmi_matched,
435 .ident = "Acer Aspire 1360",
436 .matches = {
437 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
438 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
439 },
440 .driver_data = &quirk_acer_aspire_1520,
441 },
442 {
443 .callback = dmi_matched,
444 .ident = "Acer Aspire 1520",
445 .matches = {
446 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
447 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
448 },
449 .driver_data = &quirk_acer_aspire_1520,
450 },
451 {
452 .callback = dmi_matched,
453 .ident = "Acer Aspire 3100",
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
457 },
458 .driver_data = &quirk_acer_travelmate_2490,
459 },
460 {
461 .callback = dmi_matched,
462 .ident = "Acer Aspire 3610",
463 .matches = {
464 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
465 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
466 },
467 .driver_data = &quirk_acer_travelmate_2490,
468 },
469 {
470 .callback = dmi_matched,
471 .ident = "Acer Aspire 5100",
472 .matches = {
473 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
474 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
475 },
476 .driver_data = &quirk_acer_travelmate_2490,
477 },
478 {
479 .callback = dmi_matched,
480 .ident = "Acer Aspire 5610",
481 .matches = {
482 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
483 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
484 },
485 .driver_data = &quirk_acer_travelmate_2490,
486 },
487 {
488 .callback = dmi_matched,
489 .ident = "Acer Aspire 5630",
490 .matches = {
491 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
492 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
493 },
494 .driver_data = &quirk_acer_travelmate_2490,
495 },
496 {
497 .callback = dmi_matched,
498 .ident = "Acer Aspire 5650",
499 .matches = {
500 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
501 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
502 },
503 .driver_data = &quirk_acer_travelmate_2490,
504 },
505 {
506 .callback = dmi_matched,
507 .ident = "Acer Aspire 5680",
508 .matches = {
509 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
510 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
511 },
512 .driver_data = &quirk_acer_travelmate_2490,
513 },
514 {
515 .callback = dmi_matched,
516 .ident = "Acer Aspire 9110",
517 .matches = {
518 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
519 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
520 },
521 .driver_data = &quirk_acer_travelmate_2490,
522 },
523 {
524 .callback = dmi_matched,
525 .ident = "Acer TravelMate 2490",
526 .matches = {
527 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
528 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
529 },
530 .driver_data = &quirk_acer_travelmate_2490,
531 },
532 {
533 .callback = dmi_matched,
534 .ident = "Acer TravelMate 4200",
535 .matches = {
536 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
537 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
538 },
539 .driver_data = &quirk_acer_travelmate_2490,
540 },
541 {
542 .callback = dmi_matched,
543 .ident = "Acer Predator PH315-53",
544 .matches = {
545 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
546 DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH315-53"),
547 },
548 .driver_data = &quirk_acer_predator_ph315_53,
549 },
550 {
551 .callback = set_force_caps,
552 .ident = "Acer Aspire Switch 10E SW3-016",
553 .matches = {
554 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
556 },
557 .driver_data = (void *)ACER_CAP_KBD_DOCK,
558 },
559 {
560 .callback = set_force_caps,
561 .ident = "Acer Aspire Switch 10 SW5-012",
562 .matches = {
563 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
564 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
565 },
566 .driver_data = (void *)ACER_CAP_KBD_DOCK,
567 },
568 {
569 .callback = set_force_caps,
570 .ident = "Acer Aspire Switch V 10 SW5-017",
571 .matches = {
572 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
573 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
574 },
575 .driver_data = (void *)ACER_CAP_KBD_DOCK,
576 },
577 {
578 .callback = set_force_caps,
579 .ident = "Acer One 10 (S1003)",
580 .matches = {
581 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
582 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
583 },
584 .driver_data = (void *)ACER_CAP_KBD_DOCK,
585 },
586 {}
587 };
588
589 /*
590 * This quirk list is for those non-acer machines that have AMW0_GUID1
591 * but supported by acer-wmi in past days. Keeping this quirk list here
592 * is only for backward compatible. Please do not add new machine to
593 * here anymore. Those non-acer machines should be supported by
594 * appropriate wmi drivers.
595 */
596 static const struct dmi_system_id non_acer_quirks[] __initconst = {
597 {
598 .callback = dmi_matched,
599 .ident = "Fujitsu Siemens Amilo Li 1718",
600 .matches = {
601 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
602 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
603 },
604 .driver_data = &quirk_fujitsu_amilo_li_1718,
605 },
606 {
607 .callback = dmi_matched,
608 .ident = "Medion MD 98300",
609 .matches = {
610 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
611 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
612 },
613 .driver_data = &quirk_medion_md_98300,
614 },
615 {
616 .callback = dmi_matched,
617 .ident = "Lenovo Ideapad S205",
618 .matches = {
619 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
620 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
621 },
622 .driver_data = &quirk_lenovo_ideapad_s205,
623 },
624 {
625 .callback = dmi_matched,
626 .ident = "Lenovo Ideapad S205 (Brazos)",
627 .matches = {
628 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
629 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
630 },
631 .driver_data = &quirk_lenovo_ideapad_s205,
632 },
633 {
634 .callback = dmi_matched,
635 .ident = "Lenovo 3000 N200",
636 .matches = {
637 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
638 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
639 },
640 .driver_data = &quirk_fujitsu_amilo_li_1718,
641 },
642 {
643 .callback = dmi_matched,
644 .ident = "Lenovo Ideapad S205-10382JG",
645 .matches = {
646 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
647 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
648 },
649 .driver_data = &quirk_lenovo_ideapad_s205,
650 },
651 {
652 .callback = dmi_matched,
653 .ident = "Lenovo Ideapad S205-1038DPG",
654 .matches = {
655 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
656 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
657 },
658 .driver_data = &quirk_lenovo_ideapad_s205,
659 },
660 {}
661 };
662
663 /* Find which quirks are needed for a particular vendor/ model pair */
find_quirks(void)664 static void __init find_quirks(void)
665 {
666 if (!force_series) {
667 dmi_check_system(acer_quirks);
668 dmi_check_system(non_acer_quirks);
669 } else if (force_series == 2490) {
670 quirks = &quirk_acer_travelmate_2490;
671 }
672
673 if (quirks == NULL)
674 quirks = &quirk_unknown;
675 }
676
677 /*
678 * General interface convenience methods
679 */
680
has_cap(u32 cap)681 static bool has_cap(u32 cap)
682 {
683 return interface->capability & cap;
684 }
685
686 /*
687 * AMW0 (V1) interface
688 */
689 struct wmab_args {
690 u32 eax;
691 u32 ebx;
692 u32 ecx;
693 u32 edx;
694 };
695
696 struct wmab_ret {
697 u32 eax;
698 u32 ebx;
699 u32 ecx;
700 u32 edx;
701 u32 eex;
702 };
703
wmab_execute(struct wmab_args * regbuf,struct acpi_buffer * result)704 static acpi_status wmab_execute(struct wmab_args *regbuf,
705 struct acpi_buffer *result)
706 {
707 struct acpi_buffer input;
708 acpi_status status;
709 input.length = sizeof(struct wmab_args);
710 input.pointer = (u8 *)regbuf;
711
712 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
713
714 return status;
715 }
716
AMW0_get_u32(u32 * value,u32 cap)717 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
718 {
719 int err;
720 u8 result;
721
722 switch (cap) {
723 case ACER_CAP_MAILLED:
724 switch (quirks->mailled) {
725 default:
726 err = ec_read(0xA, &result);
727 if (err)
728 return AE_ERROR;
729 *value = (result >> 7) & 0x1;
730 return AE_OK;
731 }
732 break;
733 case ACER_CAP_WIRELESS:
734 switch (quirks->wireless) {
735 case 1:
736 err = ec_read(0x7B, &result);
737 if (err)
738 return AE_ERROR;
739 *value = result & 0x1;
740 return AE_OK;
741 case 2:
742 err = ec_read(0x71, &result);
743 if (err)
744 return AE_ERROR;
745 *value = result & 0x1;
746 return AE_OK;
747 case 3:
748 err = ec_read(0x78, &result);
749 if (err)
750 return AE_ERROR;
751 *value = result & 0x1;
752 return AE_OK;
753 default:
754 err = ec_read(0xA, &result);
755 if (err)
756 return AE_ERROR;
757 *value = (result >> 2) & 0x1;
758 return AE_OK;
759 }
760 break;
761 case ACER_CAP_BLUETOOTH:
762 switch (quirks->bluetooth) {
763 default:
764 err = ec_read(0xA, &result);
765 if (err)
766 return AE_ERROR;
767 *value = (result >> 4) & 0x1;
768 return AE_OK;
769 }
770 break;
771 case ACER_CAP_BRIGHTNESS:
772 switch (quirks->brightness) {
773 default:
774 err = ec_read(0x83, &result);
775 if (err)
776 return AE_ERROR;
777 *value = result;
778 return AE_OK;
779 }
780 break;
781 default:
782 return AE_ERROR;
783 }
784 return AE_OK;
785 }
786
AMW0_set_u32(u32 value,u32 cap)787 static acpi_status AMW0_set_u32(u32 value, u32 cap)
788 {
789 struct wmab_args args;
790
791 args.eax = ACER_AMW0_WRITE;
792 args.ebx = value ? (1<<8) : 0;
793 args.ecx = args.edx = 0;
794
795 switch (cap) {
796 case ACER_CAP_MAILLED:
797 if (value > 1)
798 return AE_BAD_PARAMETER;
799 args.ebx |= ACER_AMW0_MAILLED_MASK;
800 break;
801 case ACER_CAP_WIRELESS:
802 if (value > 1)
803 return AE_BAD_PARAMETER;
804 args.ebx |= ACER_AMW0_WIRELESS_MASK;
805 break;
806 case ACER_CAP_BLUETOOTH:
807 if (value > 1)
808 return AE_BAD_PARAMETER;
809 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
810 break;
811 case ACER_CAP_BRIGHTNESS:
812 if (value > max_brightness)
813 return AE_BAD_PARAMETER;
814 switch (quirks->brightness) {
815 default:
816 return ec_write(0x83, value);
817 }
818 default:
819 return AE_ERROR;
820 }
821
822 /* Actually do the set */
823 return wmab_execute(&args, NULL);
824 }
825
AMW0_find_mailled(void)826 static acpi_status __init AMW0_find_mailled(void)
827 {
828 struct wmab_args args;
829 struct wmab_ret ret;
830 acpi_status status = AE_OK;
831 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
832 union acpi_object *obj;
833
834 args.eax = 0x86;
835 args.ebx = args.ecx = args.edx = 0;
836
837 status = wmab_execute(&args, &out);
838 if (ACPI_FAILURE(status))
839 return status;
840
841 obj = (union acpi_object *) out.pointer;
842 if (obj && obj->type == ACPI_TYPE_BUFFER &&
843 obj->buffer.length == sizeof(struct wmab_ret)) {
844 ret = *((struct wmab_ret *) obj->buffer.pointer);
845 } else {
846 kfree(out.pointer);
847 return AE_ERROR;
848 }
849
850 if (ret.eex & 0x1)
851 interface->capability |= ACER_CAP_MAILLED;
852
853 kfree(out.pointer);
854
855 return AE_OK;
856 }
857
858 static const struct acpi_device_id norfkill_ids[] __initconst = {
859 { "VPC2004", 0},
860 { "IBM0068", 0},
861 { "LEN0068", 0},
862 { "SNY5001", 0}, /* sony-laptop in charge */
863 { "HPQ6601", 0},
864 { "", 0},
865 };
866
AMW0_set_cap_acpi_check_device(void)867 static int __init AMW0_set_cap_acpi_check_device(void)
868 {
869 const struct acpi_device_id *id;
870
871 for (id = norfkill_ids; id->id[0]; id++)
872 if (acpi_dev_found(id->id))
873 return true;
874
875 return false;
876 }
877
AMW0_set_capabilities(void)878 static acpi_status __init AMW0_set_capabilities(void)
879 {
880 struct wmab_args args;
881 struct wmab_ret ret;
882 acpi_status status;
883 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
884 union acpi_object *obj;
885
886 /*
887 * On laptops with this strange GUID (non Acer), normal probing doesn't
888 * work.
889 */
890 if (wmi_has_guid(AMW0_GUID2)) {
891 if ((quirks != &quirk_unknown) ||
892 !AMW0_set_cap_acpi_check_device())
893 interface->capability |= ACER_CAP_WIRELESS;
894 return AE_OK;
895 }
896
897 args.eax = ACER_AMW0_WRITE;
898 args.ecx = args.edx = 0;
899
900 args.ebx = 0xa2 << 8;
901 args.ebx |= ACER_AMW0_WIRELESS_MASK;
902
903 status = wmab_execute(&args, &out);
904 if (ACPI_FAILURE(status))
905 return status;
906
907 obj = out.pointer;
908 if (obj && obj->type == ACPI_TYPE_BUFFER &&
909 obj->buffer.length == sizeof(struct wmab_ret)) {
910 ret = *((struct wmab_ret *) obj->buffer.pointer);
911 } else {
912 status = AE_ERROR;
913 goto out;
914 }
915
916 if (ret.eax & 0x1)
917 interface->capability |= ACER_CAP_WIRELESS;
918
919 args.ebx = 2 << 8;
920 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
921
922 /*
923 * It's ok to use existing buffer for next wmab_execute call.
924 * But we need to kfree(out.pointer) if next wmab_execute fail.
925 */
926 status = wmab_execute(&args, &out);
927 if (ACPI_FAILURE(status))
928 goto out;
929
930 obj = (union acpi_object *) out.pointer;
931 if (obj && obj->type == ACPI_TYPE_BUFFER
932 && obj->buffer.length == sizeof(struct wmab_ret)) {
933 ret = *((struct wmab_ret *) obj->buffer.pointer);
934 } else {
935 status = AE_ERROR;
936 goto out;
937 }
938
939 if (ret.eax & 0x1)
940 interface->capability |= ACER_CAP_BLUETOOTH;
941
942 /*
943 * This appears to be safe to enable, since all Wistron based laptops
944 * appear to use the same EC register for brightness, even if they
945 * differ for wireless, etc
946 */
947 if (quirks->brightness >= 0)
948 interface->capability |= ACER_CAP_BRIGHTNESS;
949
950 status = AE_OK;
951 out:
952 kfree(out.pointer);
953 return status;
954 }
955
956 static struct wmi_interface AMW0_interface = {
957 .type = ACER_AMW0,
958 };
959
960 static struct wmi_interface AMW0_V2_interface = {
961 .type = ACER_AMW0_V2,
962 };
963
964 /*
965 * New interface (The WMID interface)
966 */
967 static acpi_status
WMI_execute_u32(u32 method_id,u32 in,u32 * out)968 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
969 {
970 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
971 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
972 union acpi_object *obj;
973 u32 tmp = 0;
974 acpi_status status;
975
976 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
977
978 if (ACPI_FAILURE(status))
979 return status;
980
981 obj = (union acpi_object *) result.pointer;
982 if (obj) {
983 if (obj->type == ACPI_TYPE_BUFFER &&
984 (obj->buffer.length == sizeof(u32) ||
985 obj->buffer.length == sizeof(u64))) {
986 tmp = *((u32 *) obj->buffer.pointer);
987 } else if (obj->type == ACPI_TYPE_INTEGER) {
988 tmp = (u32) obj->integer.value;
989 }
990 }
991
992 if (out)
993 *out = tmp;
994
995 kfree(result.pointer);
996
997 return status;
998 }
999
WMID_get_u32(u32 * value,u32 cap)1000 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1001 {
1002 acpi_status status;
1003 u8 tmp;
1004 u32 result, method_id = 0;
1005
1006 switch (cap) {
1007 case ACER_CAP_WIRELESS:
1008 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1009 break;
1010 case ACER_CAP_BLUETOOTH:
1011 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1012 break;
1013 case ACER_CAP_BRIGHTNESS:
1014 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1015 break;
1016 case ACER_CAP_THREEG:
1017 method_id = ACER_WMID_GET_THREEG_METHODID;
1018 break;
1019 case ACER_CAP_MAILLED:
1020 if (quirks->mailled == 1) {
1021 ec_read(0x9f, &tmp);
1022 *value = tmp & 0x1;
1023 return 0;
1024 }
1025 fallthrough;
1026 default:
1027 return AE_ERROR;
1028 }
1029 status = WMI_execute_u32(method_id, 0, &result);
1030
1031 if (ACPI_SUCCESS(status))
1032 *value = (u8)result;
1033
1034 return status;
1035 }
1036
WMID_set_u32(u32 value,u32 cap)1037 static acpi_status WMID_set_u32(u32 value, u32 cap)
1038 {
1039 u32 method_id = 0;
1040 char param;
1041
1042 switch (cap) {
1043 case ACER_CAP_BRIGHTNESS:
1044 if (value > max_brightness)
1045 return AE_BAD_PARAMETER;
1046 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1047 break;
1048 case ACER_CAP_WIRELESS:
1049 if (value > 1)
1050 return AE_BAD_PARAMETER;
1051 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1052 break;
1053 case ACER_CAP_BLUETOOTH:
1054 if (value > 1)
1055 return AE_BAD_PARAMETER;
1056 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1057 break;
1058 case ACER_CAP_THREEG:
1059 if (value > 1)
1060 return AE_BAD_PARAMETER;
1061 method_id = ACER_WMID_SET_THREEG_METHODID;
1062 break;
1063 case ACER_CAP_MAILLED:
1064 if (value > 1)
1065 return AE_BAD_PARAMETER;
1066 if (quirks->mailled == 1) {
1067 param = value ? 0x92 : 0x93;
1068 i8042_lock_chip();
1069 i8042_command(¶m, 0x1059);
1070 i8042_unlock_chip();
1071 return 0;
1072 }
1073 break;
1074 default:
1075 return AE_ERROR;
1076 }
1077 return WMI_execute_u32(method_id, (u32)value, NULL);
1078 }
1079
wmid3_get_device_status(u32 * value,u16 device)1080 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1081 {
1082 struct wmid3_gds_return_value return_value;
1083 acpi_status status;
1084 union acpi_object *obj;
1085 struct wmid3_gds_get_input_param params = {
1086 .function_num = 0x1,
1087 .hotkey_number = commun_fn_key_number,
1088 .devices = device,
1089 };
1090 struct acpi_buffer input = {
1091 sizeof(struct wmid3_gds_get_input_param),
1092 ¶ms
1093 };
1094 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1095
1096 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1097 if (ACPI_FAILURE(status))
1098 return status;
1099
1100 obj = output.pointer;
1101
1102 if (!obj)
1103 return AE_ERROR;
1104 else if (obj->type != ACPI_TYPE_BUFFER) {
1105 kfree(obj);
1106 return AE_ERROR;
1107 }
1108 if (obj->buffer.length != 8) {
1109 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1110 kfree(obj);
1111 return AE_ERROR;
1112 }
1113
1114 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1115 kfree(obj);
1116
1117 if (return_value.error_code || return_value.ec_return_value)
1118 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1119 device,
1120 return_value.error_code,
1121 return_value.ec_return_value);
1122 else
1123 *value = !!(return_value.devices & device);
1124
1125 return status;
1126 }
1127
wmid_v2_get_u32(u32 * value,u32 cap)1128 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1129 {
1130 u16 device;
1131
1132 switch (cap) {
1133 case ACER_CAP_WIRELESS:
1134 device = ACER_WMID3_GDS_WIRELESS;
1135 break;
1136 case ACER_CAP_BLUETOOTH:
1137 device = ACER_WMID3_GDS_BLUETOOTH;
1138 break;
1139 case ACER_CAP_THREEG:
1140 device = ACER_WMID3_GDS_THREEG;
1141 break;
1142 default:
1143 return AE_ERROR;
1144 }
1145 return wmid3_get_device_status(value, device);
1146 }
1147
wmid3_set_device_status(u32 value,u16 device)1148 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1149 {
1150 struct wmid3_gds_return_value return_value;
1151 acpi_status status;
1152 union acpi_object *obj;
1153 u16 devices;
1154 struct wmid3_gds_get_input_param get_params = {
1155 .function_num = 0x1,
1156 .hotkey_number = commun_fn_key_number,
1157 .devices = commun_func_bitmap,
1158 };
1159 struct acpi_buffer get_input = {
1160 sizeof(struct wmid3_gds_get_input_param),
1161 &get_params
1162 };
1163 struct wmid3_gds_set_input_param set_params = {
1164 .function_num = 0x2,
1165 .hotkey_number = commun_fn_key_number,
1166 .devices = commun_func_bitmap,
1167 };
1168 struct acpi_buffer set_input = {
1169 sizeof(struct wmid3_gds_set_input_param),
1170 &set_params
1171 };
1172 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1173 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1174
1175 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1176 if (ACPI_FAILURE(status))
1177 return status;
1178
1179 obj = output.pointer;
1180
1181 if (!obj)
1182 return AE_ERROR;
1183 else if (obj->type != ACPI_TYPE_BUFFER) {
1184 kfree(obj);
1185 return AE_ERROR;
1186 }
1187 if (obj->buffer.length != 8) {
1188 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1189 kfree(obj);
1190 return AE_ERROR;
1191 }
1192
1193 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1194 kfree(obj);
1195
1196 if (return_value.error_code || return_value.ec_return_value) {
1197 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1198 return_value.error_code,
1199 return_value.ec_return_value);
1200 return status;
1201 }
1202
1203 devices = return_value.devices;
1204 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1205
1206 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1207 if (ACPI_FAILURE(status))
1208 return status;
1209
1210 obj = output2.pointer;
1211
1212 if (!obj)
1213 return AE_ERROR;
1214 else if (obj->type != ACPI_TYPE_BUFFER) {
1215 kfree(obj);
1216 return AE_ERROR;
1217 }
1218 if (obj->buffer.length != 4) {
1219 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1220 kfree(obj);
1221 return AE_ERROR;
1222 }
1223
1224 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1225 kfree(obj);
1226
1227 if (return_value.error_code || return_value.ec_return_value)
1228 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1229 return_value.error_code,
1230 return_value.ec_return_value);
1231
1232 return status;
1233 }
1234
wmid_v2_set_u32(u32 value,u32 cap)1235 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1236 {
1237 u16 device;
1238
1239 switch (cap) {
1240 case ACER_CAP_WIRELESS:
1241 device = ACER_WMID3_GDS_WIRELESS;
1242 break;
1243 case ACER_CAP_BLUETOOTH:
1244 device = ACER_WMID3_GDS_BLUETOOTH;
1245 break;
1246 case ACER_CAP_THREEG:
1247 device = ACER_WMID3_GDS_THREEG;
1248 break;
1249 default:
1250 return AE_ERROR;
1251 }
1252 return wmid3_set_device_status(value, device);
1253 }
1254
type_aa_dmi_decode(const struct dmi_header * header,void * d)1255 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1256 {
1257 struct hotkey_function_type_aa *type_aa;
1258
1259 /* We are looking for OEM-specific Type AAh */
1260 if (header->type != 0xAA)
1261 return;
1262
1263 has_type_aa = true;
1264 type_aa = (struct hotkey_function_type_aa *) header;
1265
1266 pr_info("Function bitmap for Communication Button: 0x%x\n",
1267 type_aa->commun_func_bitmap);
1268 commun_func_bitmap = type_aa->commun_func_bitmap;
1269
1270 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1271 interface->capability |= ACER_CAP_WIRELESS;
1272 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1273 interface->capability |= ACER_CAP_THREEG;
1274 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1275 interface->capability |= ACER_CAP_BLUETOOTH;
1276 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1277 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1278
1279 commun_fn_key_number = type_aa->commun_fn_key_number;
1280 }
1281
WMID_set_capabilities(void)1282 static acpi_status __init WMID_set_capabilities(void)
1283 {
1284 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1285 union acpi_object *obj;
1286 acpi_status status;
1287 u32 devices;
1288
1289 status = wmi_query_block(WMID_GUID2, 0, &out);
1290 if (ACPI_FAILURE(status))
1291 return status;
1292
1293 obj = (union acpi_object *) out.pointer;
1294 if (obj) {
1295 if (obj->type == ACPI_TYPE_BUFFER &&
1296 (obj->buffer.length == sizeof(u32) ||
1297 obj->buffer.length == sizeof(u64))) {
1298 devices = *((u32 *) obj->buffer.pointer);
1299 } else if (obj->type == ACPI_TYPE_INTEGER) {
1300 devices = (u32) obj->integer.value;
1301 } else {
1302 kfree(out.pointer);
1303 return AE_ERROR;
1304 }
1305 } else {
1306 kfree(out.pointer);
1307 return AE_ERROR;
1308 }
1309
1310 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1311 if (devices & 0x07)
1312 interface->capability |= ACER_CAP_WIRELESS;
1313 if (devices & 0x40)
1314 interface->capability |= ACER_CAP_THREEG;
1315 if (devices & 0x10)
1316 interface->capability |= ACER_CAP_BLUETOOTH;
1317
1318 if (!(devices & 0x20))
1319 max_brightness = 0x9;
1320
1321 kfree(out.pointer);
1322 return status;
1323 }
1324
1325 static struct wmi_interface wmid_interface = {
1326 .type = ACER_WMID,
1327 };
1328
1329 static struct wmi_interface wmid_v2_interface = {
1330 .type = ACER_WMID_v2,
1331 };
1332
1333 /*
1334 * WMID Gaming interface
1335 */
1336
1337 static acpi_status
WMI_gaming_execute_u64(u32 method_id,u64 in,u64 * out)1338 WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
1339 {
1340 struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
1341 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1342 union acpi_object *obj;
1343 u32 tmp = 0;
1344 acpi_status status;
1345
1346 status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
1347
1348 if (ACPI_FAILURE(status))
1349 return status;
1350 obj = (union acpi_object *) result.pointer;
1351
1352 if (obj) {
1353 if (obj->type == ACPI_TYPE_BUFFER) {
1354 if (obj->buffer.length == sizeof(u32))
1355 tmp = *((u32 *) obj->buffer.pointer);
1356 else if (obj->buffer.length == sizeof(u64))
1357 tmp = *((u64 *) obj->buffer.pointer);
1358 } else if (obj->type == ACPI_TYPE_INTEGER) {
1359 tmp = (u64) obj->integer.value;
1360 }
1361 }
1362
1363 if (out)
1364 *out = tmp;
1365
1366 kfree(result.pointer);
1367
1368 return status;
1369 }
1370
WMID_gaming_set_u64(u64 value,u32 cap)1371 static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
1372 {
1373 u32 method_id = 0;
1374
1375 if (!(interface->capability & cap))
1376 return AE_BAD_PARAMETER;
1377
1378 switch (cap) {
1379 case ACER_CAP_TURBO_LED:
1380 method_id = ACER_WMID_SET_GAMING_LED_METHODID;
1381 break;
1382 case ACER_CAP_TURBO_FAN:
1383 method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
1384 break;
1385 case ACER_CAP_TURBO_OC:
1386 method_id = ACER_WMID_SET_GAMING_MISC_SETTING_METHODID;
1387 break;
1388 default:
1389 return AE_BAD_PARAMETER;
1390 }
1391
1392 return WMI_gaming_execute_u64(method_id, value, NULL);
1393 }
1394
WMID_gaming_get_u64(u64 * value,u32 cap)1395 static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap)
1396 {
1397 acpi_status status;
1398 u64 result;
1399 u64 input;
1400 u32 method_id;
1401
1402 if (!(interface->capability & cap))
1403 return AE_BAD_PARAMETER;
1404
1405 switch (cap) {
1406 case ACER_CAP_TURBO_LED:
1407 method_id = ACER_WMID_GET_GAMING_LED_METHODID;
1408 input = 0x1;
1409 break;
1410 default:
1411 return AE_BAD_PARAMETER;
1412 }
1413 status = WMI_gaming_execute_u64(method_id, input, &result);
1414 if (ACPI_SUCCESS(status))
1415 *value = (u64) result;
1416
1417 return status;
1418 }
1419
WMID_gaming_set_fan_mode(u8 fan_mode)1420 static void WMID_gaming_set_fan_mode(u8 fan_mode)
1421 {
1422 /* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
1423 u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
1424 int i;
1425
1426 if (quirks->cpu_fans > 0)
1427 gpu_fan_config2 |= 1;
1428 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1429 gpu_fan_config2 |= 1 << (i + 1);
1430 for (i = 0; i < quirks->gpu_fans; ++i)
1431 gpu_fan_config2 |= 1 << (i + 3);
1432 if (quirks->cpu_fans > 0)
1433 gpu_fan_config1 |= fan_mode;
1434 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1435 gpu_fan_config1 |= fan_mode << (2 * i + 2);
1436 for (i = 0; i < quirks->gpu_fans; ++i)
1437 gpu_fan_config1 |= fan_mode << (2 * i + 6);
1438 WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
1439 }
1440
1441 /*
1442 * Generic Device (interface-independent)
1443 */
1444
get_u32(u32 * value,u32 cap)1445 static acpi_status get_u32(u32 *value, u32 cap)
1446 {
1447 acpi_status status = AE_ERROR;
1448
1449 switch (interface->type) {
1450 case ACER_AMW0:
1451 status = AMW0_get_u32(value, cap);
1452 break;
1453 case ACER_AMW0_V2:
1454 if (cap == ACER_CAP_MAILLED) {
1455 status = AMW0_get_u32(value, cap);
1456 break;
1457 }
1458 fallthrough;
1459 case ACER_WMID:
1460 status = WMID_get_u32(value, cap);
1461 break;
1462 case ACER_WMID_v2:
1463 if (cap & (ACER_CAP_WIRELESS |
1464 ACER_CAP_BLUETOOTH |
1465 ACER_CAP_THREEG))
1466 status = wmid_v2_get_u32(value, cap);
1467 else if (wmi_has_guid(WMID_GUID2))
1468 status = WMID_get_u32(value, cap);
1469 break;
1470 }
1471
1472 return status;
1473 }
1474
set_u32(u32 value,u32 cap)1475 static acpi_status set_u32(u32 value, u32 cap)
1476 {
1477 acpi_status status;
1478
1479 if (interface->capability & cap) {
1480 switch (interface->type) {
1481 case ACER_AMW0:
1482 return AMW0_set_u32(value, cap);
1483 case ACER_AMW0_V2:
1484 if (cap == ACER_CAP_MAILLED)
1485 return AMW0_set_u32(value, cap);
1486
1487 /*
1488 * On some models, some WMID methods don't toggle
1489 * properly. For those cases, we want to run the AMW0
1490 * method afterwards to be certain we've really toggled
1491 * the device state.
1492 */
1493 if (cap == ACER_CAP_WIRELESS ||
1494 cap == ACER_CAP_BLUETOOTH) {
1495 status = WMID_set_u32(value, cap);
1496 if (ACPI_FAILURE(status))
1497 return status;
1498
1499 return AMW0_set_u32(value, cap);
1500 }
1501 fallthrough;
1502 case ACER_WMID:
1503 return WMID_set_u32(value, cap);
1504 case ACER_WMID_v2:
1505 if (cap & (ACER_CAP_WIRELESS |
1506 ACER_CAP_BLUETOOTH |
1507 ACER_CAP_THREEG))
1508 return wmid_v2_set_u32(value, cap);
1509 else if (wmi_has_guid(WMID_GUID2))
1510 return WMID_set_u32(value, cap);
1511 fallthrough;
1512 default:
1513 return AE_BAD_PARAMETER;
1514 }
1515 }
1516 return AE_BAD_PARAMETER;
1517 }
1518
acer_commandline_init(void)1519 static void __init acer_commandline_init(void)
1520 {
1521 /*
1522 * These will all fail silently if the value given is invalid, or the
1523 * capability isn't available on the given interface
1524 */
1525 if (mailled >= 0)
1526 set_u32(mailled, ACER_CAP_MAILLED);
1527 if (!has_type_aa && threeg >= 0)
1528 set_u32(threeg, ACER_CAP_THREEG);
1529 if (brightness >= 0)
1530 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1531 }
1532
1533 /*
1534 * LED device (Mail LED only, no other LEDs known yet)
1535 */
mail_led_set(struct led_classdev * led_cdev,enum led_brightness value)1536 static void mail_led_set(struct led_classdev *led_cdev,
1537 enum led_brightness value)
1538 {
1539 set_u32(value, ACER_CAP_MAILLED);
1540 }
1541
1542 static struct led_classdev mail_led = {
1543 .name = "acer-wmi::mail",
1544 .brightness_set = mail_led_set,
1545 };
1546
acer_led_init(struct device * dev)1547 static int acer_led_init(struct device *dev)
1548 {
1549 return led_classdev_register(dev, &mail_led);
1550 }
1551
acer_led_exit(void)1552 static void acer_led_exit(void)
1553 {
1554 set_u32(LED_OFF, ACER_CAP_MAILLED);
1555 led_classdev_unregister(&mail_led);
1556 }
1557
1558 /*
1559 * Backlight device
1560 */
1561 static struct backlight_device *acer_backlight_device;
1562
read_brightness(struct backlight_device * bd)1563 static int read_brightness(struct backlight_device *bd)
1564 {
1565 u32 value;
1566 get_u32(&value, ACER_CAP_BRIGHTNESS);
1567 return value;
1568 }
1569
update_bl_status(struct backlight_device * bd)1570 static int update_bl_status(struct backlight_device *bd)
1571 {
1572 int intensity = backlight_get_brightness(bd);
1573
1574 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1575
1576 return 0;
1577 }
1578
1579 static const struct backlight_ops acer_bl_ops = {
1580 .get_brightness = read_brightness,
1581 .update_status = update_bl_status,
1582 };
1583
acer_backlight_init(struct device * dev)1584 static int acer_backlight_init(struct device *dev)
1585 {
1586 struct backlight_properties props;
1587 struct backlight_device *bd;
1588
1589 memset(&props, 0, sizeof(struct backlight_properties));
1590 props.type = BACKLIGHT_PLATFORM;
1591 props.max_brightness = max_brightness;
1592 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1593 &props);
1594 if (IS_ERR(bd)) {
1595 pr_err("Could not register Acer backlight device\n");
1596 acer_backlight_device = NULL;
1597 return PTR_ERR(bd);
1598 }
1599
1600 acer_backlight_device = bd;
1601
1602 bd->props.power = FB_BLANK_UNBLANK;
1603 bd->props.brightness = read_brightness(bd);
1604 backlight_update_status(bd);
1605 return 0;
1606 }
1607
acer_backlight_exit(void)1608 static void acer_backlight_exit(void)
1609 {
1610 backlight_device_unregister(acer_backlight_device);
1611 }
1612
1613 /*
1614 * Accelerometer device
1615 */
1616 static acpi_handle gsensor_handle;
1617
acer_gsensor_init(void)1618 static int acer_gsensor_init(void)
1619 {
1620 acpi_status status;
1621 struct acpi_buffer output;
1622 union acpi_object out_obj;
1623
1624 output.length = sizeof(out_obj);
1625 output.pointer = &out_obj;
1626 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1627 if (ACPI_FAILURE(status))
1628 return -1;
1629
1630 return 0;
1631 }
1632
acer_gsensor_open(struct input_dev * input)1633 static int acer_gsensor_open(struct input_dev *input)
1634 {
1635 return acer_gsensor_init();
1636 }
1637
acer_gsensor_event(void)1638 static int acer_gsensor_event(void)
1639 {
1640 acpi_status status;
1641 struct acpi_buffer output;
1642 union acpi_object out_obj[5];
1643
1644 if (!acer_wmi_accel_dev)
1645 return -1;
1646
1647 output.length = sizeof(out_obj);
1648 output.pointer = out_obj;
1649
1650 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1651 if (ACPI_FAILURE(status))
1652 return -1;
1653
1654 if (out_obj->package.count != 4)
1655 return -1;
1656
1657 input_report_abs(acer_wmi_accel_dev, ABS_X,
1658 (s16)out_obj->package.elements[0].integer.value);
1659 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1660 (s16)out_obj->package.elements[1].integer.value);
1661 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1662 (s16)out_obj->package.elements[2].integer.value);
1663 input_sync(acer_wmi_accel_dev);
1664 return 0;
1665 }
1666
1667 /*
1668 * Predator series turbo button
1669 */
acer_toggle_turbo(void)1670 static int acer_toggle_turbo(void)
1671 {
1672 u64 turbo_led_state;
1673
1674 /* Get current state from turbo button */
1675 if (ACPI_FAILURE(WMID_gaming_get_u64(&turbo_led_state, ACER_CAP_TURBO_LED)))
1676 return -1;
1677
1678 if (turbo_led_state) {
1679 /* Turn off turbo led */
1680 WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
1681
1682 /* Set FAN mode to auto */
1683 WMID_gaming_set_fan_mode(0x1);
1684
1685 /* Set OC to normal */
1686 WMID_gaming_set_u64(0x5, ACER_CAP_TURBO_OC);
1687 WMID_gaming_set_u64(0x7, ACER_CAP_TURBO_OC);
1688 } else {
1689 /* Turn on turbo led */
1690 WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
1691
1692 /* Set FAN mode to turbo */
1693 WMID_gaming_set_fan_mode(0x2);
1694
1695 /* Set OC to turbo mode */
1696 WMID_gaming_set_u64(0x205, ACER_CAP_TURBO_OC);
1697 WMID_gaming_set_u64(0x207, ACER_CAP_TURBO_OC);
1698 }
1699 return turbo_led_state;
1700 }
1701
1702 /*
1703 * Switch series keyboard dock status
1704 */
acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)1705 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1706 {
1707 switch (kbd_dock_state) {
1708 case 0x01: /* Docked, traditional clamshell laptop mode */
1709 return 0;
1710 case 0x04: /* Stand-alone tablet */
1711 case 0x40: /* Docked, tent mode, keyboard not usable */
1712 return 1;
1713 default:
1714 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1715 }
1716
1717 return 0;
1718 }
1719
acer_kbd_dock_get_initial_state(void)1720 static void acer_kbd_dock_get_initial_state(void)
1721 {
1722 u8 *output, input[8] = { 0x05, 0x00, };
1723 struct acpi_buffer input_buf = { sizeof(input), input };
1724 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1725 union acpi_object *obj;
1726 acpi_status status;
1727 int sw_tablet_mode;
1728
1729 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1730 if (ACPI_FAILURE(status)) {
1731 pr_err("Error getting keyboard-dock initial status: %s\n",
1732 acpi_format_exception(status));
1733 return;
1734 }
1735
1736 obj = output_buf.pointer;
1737 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1738 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1739 goto out_free_obj;
1740 }
1741
1742 output = obj->buffer.pointer;
1743 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1744 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1745 output[0], output[3]);
1746 goto out_free_obj;
1747 }
1748
1749 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1750 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1751
1752 out_free_obj:
1753 kfree(obj);
1754 }
1755
acer_kbd_dock_event(const struct event_return_value * event)1756 static void acer_kbd_dock_event(const struct event_return_value *event)
1757 {
1758 int sw_tablet_mode;
1759
1760 if (!has_cap(ACER_CAP_KBD_DOCK))
1761 return;
1762
1763 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1764 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1765 input_sync(acer_wmi_input_dev);
1766 }
1767
1768 /*
1769 * Rfkill devices
1770 */
1771 static void acer_rfkill_update(struct work_struct *ignored);
1772 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
acer_rfkill_update(struct work_struct * ignored)1773 static void acer_rfkill_update(struct work_struct *ignored)
1774 {
1775 u32 state;
1776 acpi_status status;
1777
1778 if (has_cap(ACER_CAP_WIRELESS)) {
1779 status = get_u32(&state, ACER_CAP_WIRELESS);
1780 if (ACPI_SUCCESS(status)) {
1781 if (quirks->wireless == 3)
1782 rfkill_set_hw_state(wireless_rfkill, !state);
1783 else
1784 rfkill_set_sw_state(wireless_rfkill, !state);
1785 }
1786 }
1787
1788 if (has_cap(ACER_CAP_BLUETOOTH)) {
1789 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1790 if (ACPI_SUCCESS(status))
1791 rfkill_set_sw_state(bluetooth_rfkill, !state);
1792 }
1793
1794 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1795 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1796 if (ACPI_SUCCESS(status))
1797 rfkill_set_sw_state(threeg_rfkill, !state);
1798 }
1799
1800 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1801 }
1802
acer_rfkill_set(void * data,bool blocked)1803 static int acer_rfkill_set(void *data, bool blocked)
1804 {
1805 acpi_status status;
1806 u32 cap = (unsigned long)data;
1807
1808 if (rfkill_inited) {
1809 status = set_u32(!blocked, cap);
1810 if (ACPI_FAILURE(status))
1811 return -ENODEV;
1812 }
1813
1814 return 0;
1815 }
1816
1817 static const struct rfkill_ops acer_rfkill_ops = {
1818 .set_block = acer_rfkill_set,
1819 };
1820
acer_rfkill_register(struct device * dev,enum rfkill_type type,char * name,u32 cap)1821 static struct rfkill *acer_rfkill_register(struct device *dev,
1822 enum rfkill_type type,
1823 char *name, u32 cap)
1824 {
1825 int err;
1826 struct rfkill *rfkill_dev;
1827 u32 state;
1828 acpi_status status;
1829
1830 rfkill_dev = rfkill_alloc(name, dev, type,
1831 &acer_rfkill_ops,
1832 (void *)(unsigned long)cap);
1833 if (!rfkill_dev)
1834 return ERR_PTR(-ENOMEM);
1835
1836 status = get_u32(&state, cap);
1837
1838 err = rfkill_register(rfkill_dev);
1839 if (err) {
1840 rfkill_destroy(rfkill_dev);
1841 return ERR_PTR(err);
1842 }
1843
1844 if (ACPI_SUCCESS(status))
1845 rfkill_set_sw_state(rfkill_dev, !state);
1846
1847 return rfkill_dev;
1848 }
1849
acer_rfkill_init(struct device * dev)1850 static int acer_rfkill_init(struct device *dev)
1851 {
1852 int err;
1853
1854 if (has_cap(ACER_CAP_WIRELESS)) {
1855 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1856 "acer-wireless", ACER_CAP_WIRELESS);
1857 if (IS_ERR(wireless_rfkill)) {
1858 err = PTR_ERR(wireless_rfkill);
1859 goto error_wireless;
1860 }
1861 }
1862
1863 if (has_cap(ACER_CAP_BLUETOOTH)) {
1864 bluetooth_rfkill = acer_rfkill_register(dev,
1865 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1866 ACER_CAP_BLUETOOTH);
1867 if (IS_ERR(bluetooth_rfkill)) {
1868 err = PTR_ERR(bluetooth_rfkill);
1869 goto error_bluetooth;
1870 }
1871 }
1872
1873 if (has_cap(ACER_CAP_THREEG)) {
1874 threeg_rfkill = acer_rfkill_register(dev,
1875 RFKILL_TYPE_WWAN, "acer-threeg",
1876 ACER_CAP_THREEG);
1877 if (IS_ERR(threeg_rfkill)) {
1878 err = PTR_ERR(threeg_rfkill);
1879 goto error_threeg;
1880 }
1881 }
1882
1883 rfkill_inited = true;
1884
1885 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1886 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1887 schedule_delayed_work(&acer_rfkill_work,
1888 round_jiffies_relative(HZ));
1889
1890 return 0;
1891
1892 error_threeg:
1893 if (has_cap(ACER_CAP_BLUETOOTH)) {
1894 rfkill_unregister(bluetooth_rfkill);
1895 rfkill_destroy(bluetooth_rfkill);
1896 }
1897 error_bluetooth:
1898 if (has_cap(ACER_CAP_WIRELESS)) {
1899 rfkill_unregister(wireless_rfkill);
1900 rfkill_destroy(wireless_rfkill);
1901 }
1902 error_wireless:
1903 return err;
1904 }
1905
acer_rfkill_exit(void)1906 static void acer_rfkill_exit(void)
1907 {
1908 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1909 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1910 cancel_delayed_work_sync(&acer_rfkill_work);
1911
1912 if (has_cap(ACER_CAP_WIRELESS)) {
1913 rfkill_unregister(wireless_rfkill);
1914 rfkill_destroy(wireless_rfkill);
1915 }
1916
1917 if (has_cap(ACER_CAP_BLUETOOTH)) {
1918 rfkill_unregister(bluetooth_rfkill);
1919 rfkill_destroy(bluetooth_rfkill);
1920 }
1921
1922 if (has_cap(ACER_CAP_THREEG)) {
1923 rfkill_unregister(threeg_rfkill);
1924 rfkill_destroy(threeg_rfkill);
1925 }
1926 return;
1927 }
1928
acer_wmi_notify(u32 value,void * context)1929 static void acer_wmi_notify(u32 value, void *context)
1930 {
1931 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1932 union acpi_object *obj;
1933 struct event_return_value return_value;
1934 acpi_status status;
1935 u16 device_state;
1936 const struct key_entry *key;
1937 u32 scancode;
1938
1939 status = wmi_get_event_data(value, &response);
1940 if (status != AE_OK) {
1941 pr_warn("bad event status 0x%x\n", status);
1942 return;
1943 }
1944
1945 obj = (union acpi_object *)response.pointer;
1946
1947 if (!obj)
1948 return;
1949 if (obj->type != ACPI_TYPE_BUFFER) {
1950 pr_warn("Unknown response received %d\n", obj->type);
1951 kfree(obj);
1952 return;
1953 }
1954 if (obj->buffer.length != 8) {
1955 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1956 kfree(obj);
1957 return;
1958 }
1959
1960 return_value = *((struct event_return_value *)obj->buffer.pointer);
1961 kfree(obj);
1962
1963 switch (return_value.function) {
1964 case WMID_HOTKEY_EVENT:
1965 device_state = return_value.device_state;
1966 pr_debug("device state: 0x%x\n", device_state);
1967
1968 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1969 return_value.key_num);
1970 if (!key) {
1971 pr_warn("Unknown key number - 0x%x\n",
1972 return_value.key_num);
1973 } else {
1974 scancode = return_value.key_num;
1975 switch (key->keycode) {
1976 case KEY_WLAN:
1977 case KEY_BLUETOOTH:
1978 if (has_cap(ACER_CAP_WIRELESS))
1979 rfkill_set_sw_state(wireless_rfkill,
1980 !(device_state & ACER_WMID3_GDS_WIRELESS));
1981 if (has_cap(ACER_CAP_THREEG))
1982 rfkill_set_sw_state(threeg_rfkill,
1983 !(device_state & ACER_WMID3_GDS_THREEG));
1984 if (has_cap(ACER_CAP_BLUETOOTH))
1985 rfkill_set_sw_state(bluetooth_rfkill,
1986 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1987 break;
1988 case KEY_TOUCHPAD_TOGGLE:
1989 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1990 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1991 }
1992 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1993 }
1994 break;
1995 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1996 acer_gsensor_event();
1997 acer_kbd_dock_event(&return_value);
1998 break;
1999 case WMID_GAMING_TURBO_KEY_EVENT:
2000 if (return_value.key_num == 0x4)
2001 acer_toggle_turbo();
2002 break;
2003 case WMID_AC_EVENT:
2004 /* We ignore AC events here */
2005 break;
2006 default:
2007 pr_warn("Unknown function number - %d - %d\n",
2008 return_value.function, return_value.key_num);
2009 break;
2010 }
2011 }
2012
2013 static acpi_status __init
wmid3_set_function_mode(struct func_input_params * params,struct func_return_value * return_value)2014 wmid3_set_function_mode(struct func_input_params *params,
2015 struct func_return_value *return_value)
2016 {
2017 acpi_status status;
2018 union acpi_object *obj;
2019
2020 struct acpi_buffer input = { sizeof(struct func_input_params), params };
2021 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
2022
2023 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
2024 if (ACPI_FAILURE(status))
2025 return status;
2026
2027 obj = output.pointer;
2028
2029 if (!obj)
2030 return AE_ERROR;
2031 else if (obj->type != ACPI_TYPE_BUFFER) {
2032 kfree(obj);
2033 return AE_ERROR;
2034 }
2035 if (obj->buffer.length != 4) {
2036 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2037 kfree(obj);
2038 return AE_ERROR;
2039 }
2040
2041 *return_value = *((struct func_return_value *)obj->buffer.pointer);
2042 kfree(obj);
2043
2044 return status;
2045 }
2046
acer_wmi_enable_ec_raw(void)2047 static int __init acer_wmi_enable_ec_raw(void)
2048 {
2049 struct func_return_value return_value;
2050 acpi_status status;
2051 struct func_input_params params = {
2052 .function_num = 0x1,
2053 .commun_devices = 0xFFFF,
2054 .devices = 0xFFFF,
2055 .app_status = 0x00, /* Launch Manager Deactive */
2056 .app_mask = 0x01,
2057 };
2058
2059 status = wmid3_set_function_mode(¶ms, &return_value);
2060
2061 if (return_value.error_code || return_value.ec_return_value)
2062 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
2063 return_value.error_code,
2064 return_value.ec_return_value);
2065 else
2066 pr_info("Enabled EC raw mode\n");
2067
2068 return status;
2069 }
2070
acer_wmi_enable_lm(void)2071 static int __init acer_wmi_enable_lm(void)
2072 {
2073 struct func_return_value return_value;
2074 acpi_status status;
2075 struct func_input_params params = {
2076 .function_num = 0x1,
2077 .commun_devices = 0xFFFF,
2078 .devices = 0xFFFF,
2079 .app_status = 0x01, /* Launch Manager Active */
2080 .app_mask = 0x01,
2081 };
2082
2083 status = wmid3_set_function_mode(¶ms, &return_value);
2084
2085 if (return_value.error_code || return_value.ec_return_value)
2086 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
2087 return_value.error_code,
2088 return_value.ec_return_value);
2089
2090 return status;
2091 }
2092
acer_wmi_enable_rf_button(void)2093 static int __init acer_wmi_enable_rf_button(void)
2094 {
2095 struct func_return_value return_value;
2096 acpi_status status;
2097 struct func_input_params params = {
2098 .function_num = 0x1,
2099 .commun_devices = 0xFFFF,
2100 .devices = 0xFFFF,
2101 .app_status = 0x10, /* RF Button Active */
2102 .app_mask = 0x10,
2103 };
2104
2105 status = wmid3_set_function_mode(¶ms, &return_value);
2106
2107 if (return_value.error_code || return_value.ec_return_value)
2108 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2109 return_value.error_code,
2110 return_value.ec_return_value);
2111
2112 return status;
2113 }
2114
acer_wmi_accel_setup(void)2115 static int __init acer_wmi_accel_setup(void)
2116 {
2117 struct acpi_device *adev;
2118 int err;
2119
2120 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2121 if (!adev)
2122 return -ENODEV;
2123
2124 gsensor_handle = acpi_device_handle(adev);
2125 acpi_dev_put(adev);
2126
2127 acer_wmi_accel_dev = input_allocate_device();
2128 if (!acer_wmi_accel_dev)
2129 return -ENOMEM;
2130
2131 acer_wmi_accel_dev->open = acer_gsensor_open;
2132
2133 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2134 acer_wmi_accel_dev->phys = "wmi/input1";
2135 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2136 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2137 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2138 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2139 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2140
2141 err = input_register_device(acer_wmi_accel_dev);
2142 if (err)
2143 goto err_free_dev;
2144
2145 return 0;
2146
2147 err_free_dev:
2148 input_free_device(acer_wmi_accel_dev);
2149 return err;
2150 }
2151
acer_wmi_input_setup(void)2152 static int __init acer_wmi_input_setup(void)
2153 {
2154 acpi_status status;
2155 int err;
2156
2157 acer_wmi_input_dev = input_allocate_device();
2158 if (!acer_wmi_input_dev)
2159 return -ENOMEM;
2160
2161 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2162 acer_wmi_input_dev->phys = "wmi/input0";
2163 acer_wmi_input_dev->id.bustype = BUS_HOST;
2164
2165 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2166 if (err)
2167 goto err_free_dev;
2168
2169 if (has_cap(ACER_CAP_KBD_DOCK))
2170 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2171
2172 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2173 acer_wmi_notify, NULL);
2174 if (ACPI_FAILURE(status)) {
2175 err = -EIO;
2176 goto err_free_dev;
2177 }
2178
2179 if (has_cap(ACER_CAP_KBD_DOCK))
2180 acer_kbd_dock_get_initial_state();
2181
2182 err = input_register_device(acer_wmi_input_dev);
2183 if (err)
2184 goto err_uninstall_notifier;
2185
2186 return 0;
2187
2188 err_uninstall_notifier:
2189 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2190 err_free_dev:
2191 input_free_device(acer_wmi_input_dev);
2192 return err;
2193 }
2194
acer_wmi_input_destroy(void)2195 static void acer_wmi_input_destroy(void)
2196 {
2197 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2198 input_unregister_device(acer_wmi_input_dev);
2199 }
2200
2201 /*
2202 * debugfs functions
2203 */
get_wmid_devices(void)2204 static u32 get_wmid_devices(void)
2205 {
2206 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2207 union acpi_object *obj;
2208 acpi_status status;
2209 u32 devices = 0;
2210
2211 status = wmi_query_block(WMID_GUID2, 0, &out);
2212 if (ACPI_FAILURE(status))
2213 return 0;
2214
2215 obj = (union acpi_object *) out.pointer;
2216 if (obj) {
2217 if (obj->type == ACPI_TYPE_BUFFER &&
2218 (obj->buffer.length == sizeof(u32) ||
2219 obj->buffer.length == sizeof(u64))) {
2220 devices = *((u32 *) obj->buffer.pointer);
2221 } else if (obj->type == ACPI_TYPE_INTEGER) {
2222 devices = (u32) obj->integer.value;
2223 }
2224 }
2225
2226 kfree(out.pointer);
2227 return devices;
2228 }
2229
2230 /*
2231 * Platform device
2232 */
acer_platform_probe(struct platform_device * device)2233 static int acer_platform_probe(struct platform_device *device)
2234 {
2235 int err;
2236
2237 if (has_cap(ACER_CAP_MAILLED)) {
2238 err = acer_led_init(&device->dev);
2239 if (err)
2240 goto error_mailled;
2241 }
2242
2243 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2244 err = acer_backlight_init(&device->dev);
2245 if (err)
2246 goto error_brightness;
2247 }
2248
2249 err = acer_rfkill_init(&device->dev);
2250 if (err)
2251 goto error_rfkill;
2252
2253 return err;
2254
2255 error_rfkill:
2256 if (has_cap(ACER_CAP_BRIGHTNESS))
2257 acer_backlight_exit();
2258 error_brightness:
2259 if (has_cap(ACER_CAP_MAILLED))
2260 acer_led_exit();
2261 error_mailled:
2262 return err;
2263 }
2264
acer_platform_remove(struct platform_device * device)2265 static void acer_platform_remove(struct platform_device *device)
2266 {
2267 if (has_cap(ACER_CAP_MAILLED))
2268 acer_led_exit();
2269 if (has_cap(ACER_CAP_BRIGHTNESS))
2270 acer_backlight_exit();
2271
2272 acer_rfkill_exit();
2273 }
2274
2275 #ifdef CONFIG_PM_SLEEP
acer_suspend(struct device * dev)2276 static int acer_suspend(struct device *dev)
2277 {
2278 u32 value;
2279 struct acer_data *data = &interface->data;
2280
2281 if (!data)
2282 return -ENOMEM;
2283
2284 if (has_cap(ACER_CAP_MAILLED)) {
2285 get_u32(&value, ACER_CAP_MAILLED);
2286 set_u32(LED_OFF, ACER_CAP_MAILLED);
2287 data->mailled = value;
2288 }
2289
2290 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2291 get_u32(&value, ACER_CAP_BRIGHTNESS);
2292 data->brightness = value;
2293 }
2294
2295 return 0;
2296 }
2297
acer_resume(struct device * dev)2298 static int acer_resume(struct device *dev)
2299 {
2300 struct acer_data *data = &interface->data;
2301
2302 if (!data)
2303 return -ENOMEM;
2304
2305 if (has_cap(ACER_CAP_MAILLED))
2306 set_u32(data->mailled, ACER_CAP_MAILLED);
2307
2308 if (has_cap(ACER_CAP_BRIGHTNESS))
2309 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2310
2311 if (acer_wmi_accel_dev)
2312 acer_gsensor_init();
2313
2314 return 0;
2315 }
2316 #else
2317 #define acer_suspend NULL
2318 #define acer_resume NULL
2319 #endif
2320
2321 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2322
acer_platform_shutdown(struct platform_device * device)2323 static void acer_platform_shutdown(struct platform_device *device)
2324 {
2325 struct acer_data *data = &interface->data;
2326
2327 if (!data)
2328 return;
2329
2330 if (has_cap(ACER_CAP_MAILLED))
2331 set_u32(LED_OFF, ACER_CAP_MAILLED);
2332 }
2333
2334 static struct platform_driver acer_platform_driver = {
2335 .driver = {
2336 .name = "acer-wmi",
2337 .pm = &acer_pm,
2338 },
2339 .probe = acer_platform_probe,
2340 .remove_new = acer_platform_remove,
2341 .shutdown = acer_platform_shutdown,
2342 };
2343
2344 static struct platform_device *acer_platform_device;
2345
remove_debugfs(void)2346 static void remove_debugfs(void)
2347 {
2348 debugfs_remove_recursive(interface->debug.root);
2349 }
2350
create_debugfs(void)2351 static void __init create_debugfs(void)
2352 {
2353 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2354
2355 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2356 &interface->debug.wmid_devices);
2357 }
2358
acer_wmi_init(void)2359 static int __init acer_wmi_init(void)
2360 {
2361 int err;
2362
2363 pr_info("Acer Laptop ACPI-WMI Extras\n");
2364
2365 if (dmi_check_system(acer_blacklist)) {
2366 pr_info("Blacklisted hardware detected - not loading\n");
2367 return -ENODEV;
2368 }
2369
2370 find_quirks();
2371
2372 /*
2373 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2374 * machines like Lenovo, Fujitsu and Medion. In the past days,
2375 * acer-wmi driver handled those non-Acer machines by quirks list.
2376 * But actually acer-wmi driver was loaded on any machines that have
2377 * AMW0_GUID1. This behavior is strange because those machines should
2378 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2379 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2380 * should be in Acer/Gateway/Packard Bell white list, or it's already
2381 * in the past quirk list.
2382 */
2383 if (wmi_has_guid(AMW0_GUID1) &&
2384 !dmi_check_system(amw0_whitelist) &&
2385 quirks == &quirk_unknown) {
2386 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2387 return -ENODEV;
2388 }
2389
2390 /*
2391 * Detect which ACPI-WMI interface we're using.
2392 */
2393 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2394 interface = &AMW0_V2_interface;
2395
2396 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2397 interface = &wmid_interface;
2398
2399 if (wmi_has_guid(WMID_GUID3))
2400 interface = &wmid_v2_interface;
2401
2402 if (interface)
2403 dmi_walk(type_aa_dmi_decode, NULL);
2404
2405 if (wmi_has_guid(WMID_GUID2) && interface) {
2406 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2407 pr_err("Unable to detect available WMID devices\n");
2408 return -ENODEV;
2409 }
2410 /* WMID always provides brightness methods */
2411 interface->capability |= ACER_CAP_BRIGHTNESS;
2412 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2413 pr_err("No WMID device detection method found\n");
2414 return -ENODEV;
2415 }
2416
2417 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2418 interface = &AMW0_interface;
2419
2420 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2421 pr_err("Unable to detect available AMW0 devices\n");
2422 return -ENODEV;
2423 }
2424 }
2425
2426 if (wmi_has_guid(AMW0_GUID1))
2427 AMW0_find_mailled();
2428
2429 if (!interface) {
2430 pr_err("No or unsupported WMI interface, unable to load\n");
2431 return -ENODEV;
2432 }
2433
2434 set_quirks();
2435
2436 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2437 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2438
2439 if (wmi_has_guid(WMID_GUID3))
2440 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2441
2442 if (force_caps != -1)
2443 interface->capability = force_caps;
2444
2445 if (wmi_has_guid(WMID_GUID3) &&
2446 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2447 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2448 pr_warn("Cannot enable RF Button Driver\n");
2449
2450 if (ec_raw_mode) {
2451 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2452 pr_err("Cannot enable EC raw mode\n");
2453 return -ENODEV;
2454 }
2455 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2456 pr_err("Cannot enable Launch Manager mode\n");
2457 return -ENODEV;
2458 }
2459 } else if (ec_raw_mode) {
2460 pr_info("No WMID EC raw mode enable method\n");
2461 }
2462
2463 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2464 err = acer_wmi_input_setup();
2465 if (err)
2466 return err;
2467 err = acer_wmi_accel_setup();
2468 if (err && err != -ENODEV)
2469 pr_warn("Cannot enable accelerometer\n");
2470 }
2471
2472 err = platform_driver_register(&acer_platform_driver);
2473 if (err) {
2474 pr_err("Unable to register platform driver\n");
2475 goto error_platform_register;
2476 }
2477
2478 acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2479 if (!acer_platform_device) {
2480 err = -ENOMEM;
2481 goto error_device_alloc;
2482 }
2483
2484 err = platform_device_add(acer_platform_device);
2485 if (err)
2486 goto error_device_add;
2487
2488 if (wmi_has_guid(WMID_GUID2)) {
2489 interface->debug.wmid_devices = get_wmid_devices();
2490 create_debugfs();
2491 }
2492
2493 /* Override any initial settings with values from the commandline */
2494 acer_commandline_init();
2495
2496 return 0;
2497
2498 error_device_add:
2499 platform_device_put(acer_platform_device);
2500 error_device_alloc:
2501 platform_driver_unregister(&acer_platform_driver);
2502 error_platform_register:
2503 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2504 acer_wmi_input_destroy();
2505 if (acer_wmi_accel_dev)
2506 input_unregister_device(acer_wmi_accel_dev);
2507
2508 return err;
2509 }
2510
acer_wmi_exit(void)2511 static void __exit acer_wmi_exit(void)
2512 {
2513 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2514 acer_wmi_input_destroy();
2515
2516 if (acer_wmi_accel_dev)
2517 input_unregister_device(acer_wmi_accel_dev);
2518
2519 remove_debugfs();
2520 platform_device_unregister(acer_platform_device);
2521 platform_driver_unregister(&acer_platform_driver);
2522
2523 pr_info("Acer Laptop WMI Extras unloaded\n");
2524 return;
2525 }
2526
2527 module_init(acer_wmi_init);
2528 module_exit(acer_wmi_exit);
2529