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 ACPI_MODULE_NAME(KBUILD_MODNAME);
34 MODULE_AUTHOR("Carlos Corbacho");
35 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
36 MODULE_LICENSE("GPL");
37
38 /*
39 * Magic Number
40 * Meaning is unknown - this number is required for writing to ACPI for AMW0
41 * (it's also used in acerhk when directly accessing the BIOS)
42 */
43 #define ACER_AMW0_WRITE 0x9610
44
45 /*
46 * Bit masks for the AMW0 interface
47 */
48 #define ACER_AMW0_WIRELESS_MASK 0x35
49 #define ACER_AMW0_BLUETOOTH_MASK 0x34
50 #define ACER_AMW0_MAILLED_MASK 0x31
51
52 /*
53 * Method IDs for WMID interface
54 */
55 #define ACER_WMID_GET_WIRELESS_METHODID 1
56 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
57 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
58 #define ACER_WMID_SET_WIRELESS_METHODID 4
59 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
60 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
61 #define ACER_WMID_GET_THREEG_METHODID 10
62 #define ACER_WMID_SET_THREEG_METHODID 11
63
64 /*
65 * Acer ACPI method GUIDs
66 */
67 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
68 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
69 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
70 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
71 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
72
73 /*
74 * Acer ACPI event GUIDs
75 */
76 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
77
78 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
79 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
80 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
81
82 enum acer_wmi_event_ids {
83 WMID_HOTKEY_EVENT = 0x1,
84 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
85 };
86
87 static const struct key_entry acer_wmi_keymap[] __initconst = {
88 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
89 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
90 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
91 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
92 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
93 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
94 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
95 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
96 {KE_KEY, 0x27, {KEY_HELP} },
97 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
98 {KE_IGNORE, 0x41, {KEY_MUTE} },
99 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
100 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
101 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
102 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
103 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
104 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
105 {KE_IGNORE, 0x45, {KEY_STOP} },
106 {KE_IGNORE, 0x50, {KEY_STOP} },
107 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
108 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
109 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
110 /*
111 * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
112 * with the "Video Bus" input device events. But sometimes it is not
113 * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
114 * udev/hwdb can override it on systems where it is not a dup.
115 */
116 {KE_KEY, 0x61, {KEY_UNKNOWN} },
117 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
118 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
119 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
120 {KE_IGNORE, 0x81, {KEY_SLEEP} },
121 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
122 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
123 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
124 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
125 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
126 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
127 {KE_KEY, 0x86, {KEY_WLAN} },
128 {KE_KEY, 0x87, {KEY_POWER} },
129 {KE_END, 0}
130 };
131
132 static struct input_dev *acer_wmi_input_dev;
133 static struct input_dev *acer_wmi_accel_dev;
134
135 struct event_return_value {
136 u8 function;
137 u8 key_num;
138 u16 device_state;
139 u16 reserved1;
140 u8 kbd_dock_state;
141 u8 reserved2;
142 } __attribute__((packed));
143
144 /*
145 * GUID3 Get Device Status device flags
146 */
147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
152
153 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
154
155 /* Hotkey Customized Setting and Acer Application Status.
156 * Set Device Default Value and Report Acer Application Status.
157 * When Acer Application starts, it will run this method to inform
158 * BIOS/EC that Acer Application is on.
159 * App Status
160 * Bit[0]: Launch Manager Status
161 * Bit[1]: ePM Status
162 * Bit[2]: Device Control Status
163 * Bit[3]: Acer Power Button Utility Status
164 * Bit[4]: RF Button Status
165 * Bit[5]: ODD PM Status
166 * Bit[6]: Device Default Value Control
167 * Bit[7]: Hall Sensor Application Status
168 */
169 struct func_input_params {
170 u8 function_num; /* Function Number */
171 u16 commun_devices; /* Communication type devices default status */
172 u16 devices; /* Other type devices default status */
173 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
174 u8 app_mask; /* Bit mask to app_status */
175 u8 reserved;
176 } __attribute__((packed));
177
178 struct func_return_value {
179 u8 error_code; /* Error Code */
180 u8 ec_return_value; /* EC Return Value */
181 u16 reserved;
182 } __attribute__((packed));
183
184 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
185 u8 function_num; /* Function Number */
186 u8 hotkey_number; /* Hotkey Number */
187 u16 devices; /* Set Device */
188 u8 volume_value; /* Volume Value */
189 } __attribute__((packed));
190
191 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
192 u8 function_num; /* Function Number */
193 u8 hotkey_number; /* Hotkey Number */
194 u16 devices; /* Get Device */
195 } __attribute__((packed));
196
197 struct wmid3_gds_return_value { /* Get Device Status return value*/
198 u8 error_code; /* Error Code */
199 u8 ec_return_value; /* EC Return Value */
200 u16 devices; /* Current Device Status */
201 u32 reserved;
202 } __attribute__((packed));
203
204 struct hotkey_function_type_aa {
205 u8 type;
206 u8 length;
207 u16 handle;
208 u16 commun_func_bitmap;
209 u16 application_func_bitmap;
210 u16 media_func_bitmap;
211 u16 display_func_bitmap;
212 u16 others_func_bitmap;
213 u8 commun_fn_key_number;
214 } __attribute__((packed));
215
216 /*
217 * Interface capability flags
218 */
219 #define ACER_CAP_MAILLED BIT(0)
220 #define ACER_CAP_WIRELESS BIT(1)
221 #define ACER_CAP_BLUETOOTH BIT(2)
222 #define ACER_CAP_BRIGHTNESS BIT(3)
223 #define ACER_CAP_THREEG BIT(4)
224 #define ACER_CAP_SET_FUNCTION_MODE BIT(5)
225 #define ACER_CAP_KBD_DOCK BIT(6)
226
227 /*
228 * Interface type flags
229 */
230 enum interface_flags {
231 ACER_AMW0,
232 ACER_AMW0_V2,
233 ACER_WMID,
234 ACER_WMID_v2,
235 };
236
237 #define ACER_DEFAULT_WIRELESS 0
238 #define ACER_DEFAULT_BLUETOOTH 0
239 #define ACER_DEFAULT_MAILLED 0
240 #define ACER_DEFAULT_THREEG 0
241
242 static int max_brightness = 0xF;
243
244 static int mailled = -1;
245 static int brightness = -1;
246 static int threeg = -1;
247 static int force_series;
248 static int force_caps = -1;
249 static bool ec_raw_mode;
250 static bool has_type_aa;
251 static u16 commun_func_bitmap;
252 static u8 commun_fn_key_number;
253
254 module_param(mailled, int, 0444);
255 module_param(brightness, int, 0444);
256 module_param(threeg, int, 0444);
257 module_param(force_series, int, 0444);
258 module_param(force_caps, int, 0444);
259 module_param(ec_raw_mode, bool, 0444);
260 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
261 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
262 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
263 MODULE_PARM_DESC(force_series, "Force a different laptop series");
264 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
265 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
266
267 struct acer_data {
268 int mailled;
269 int threeg;
270 int brightness;
271 };
272
273 struct acer_debug {
274 struct dentry *root;
275 u32 wmid_devices;
276 };
277
278 static struct rfkill *wireless_rfkill;
279 static struct rfkill *bluetooth_rfkill;
280 static struct rfkill *threeg_rfkill;
281 static bool rfkill_inited;
282
283 /* Each low-level interface must define at least some of the following */
284 struct wmi_interface {
285 /* The WMI device type */
286 u32 type;
287
288 /* The capabilities this interface provides */
289 u32 capability;
290
291 /* Private data for the current interface */
292 struct acer_data data;
293
294 /* debugfs entries associated with this interface */
295 struct acer_debug debug;
296 };
297
298 /* The static interface pointer, points to the currently detected interface */
299 static struct wmi_interface *interface;
300
301 /*
302 * Embedded Controller quirks
303 * Some laptops require us to directly access the EC to either enable or query
304 * features that are not available through WMI.
305 */
306
307 struct quirk_entry {
308 u8 wireless;
309 u8 mailled;
310 s8 brightness;
311 u8 bluetooth;
312 };
313
314 static struct quirk_entry *quirks;
315
set_quirks(void)316 static void __init set_quirks(void)
317 {
318 if (!interface)
319 return;
320
321 if (quirks->mailled)
322 interface->capability |= ACER_CAP_MAILLED;
323
324 if (quirks->brightness)
325 interface->capability |= ACER_CAP_BRIGHTNESS;
326 }
327
dmi_matched(const struct dmi_system_id *dmi)328 static int __init dmi_matched(const struct dmi_system_id *dmi)
329 {
330 quirks = dmi->driver_data;
331 return 1;
332 }
333
set_force_caps(const struct dmi_system_id *dmi)334 static int __init set_force_caps(const struct dmi_system_id *dmi)
335 {
336 if (force_caps == -1) {
337 force_caps = (uintptr_t)dmi->driver_data;
338 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
339 }
340 return 1;
341 }
342
343 static struct quirk_entry quirk_unknown = {
344 };
345
346 static struct quirk_entry quirk_acer_aspire_1520 = {
347 .brightness = -1,
348 };
349
350 static struct quirk_entry quirk_acer_travelmate_2490 = {
351 .mailled = 1,
352 };
353
354 /* This AMW0 laptop has no bluetooth */
355 static struct quirk_entry quirk_medion_md_98300 = {
356 .wireless = 1,
357 };
358
359 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
360 .wireless = 2,
361 };
362
363 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
364 .wireless = 3,
365 };
366
367 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
368 static const struct dmi_system_id acer_blacklist[] __initconst = {
369 {
370 .ident = "Acer Aspire One (SSD)",
371 .matches = {
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
374 },
375 },
376 {
377 .ident = "Acer Aspire One (HDD)",
378 .matches = {
379 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
380 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
381 },
382 },
383 {}
384 };
385
386 static const struct dmi_system_id amw0_whitelist[] __initconst = {
387 {
388 .ident = "Acer",
389 .matches = {
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 },
392 },
393 {
394 .ident = "Gateway",
395 .matches = {
396 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
397 },
398 },
399 {
400 .ident = "Packard Bell",
401 .matches = {
402 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
403 },
404 },
405 {}
406 };
407
408 /*
409 * This quirk table is only for Acer/Gateway/Packard Bell family
410 * that those machines are supported by acer-wmi driver.
411 */
412 static const struct dmi_system_id acer_quirks[] __initconst = {
413 {
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 1360",
416 .matches = {
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
419 },
420 .driver_data = &quirk_acer_aspire_1520,
421 },
422 {
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 1520",
425 .matches = {
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
428 },
429 .driver_data = &quirk_acer_aspire_1520,
430 },
431 {
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 3100",
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
437 },
438 .driver_data = &quirk_acer_travelmate_2490,
439 },
440 {
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 3610",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
446 },
447 .driver_data = &quirk_acer_travelmate_2490,
448 },
449 {
450 .callback = dmi_matched,
451 .ident = "Acer Aspire 5100",
452 .matches = {
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
455 },
456 .driver_data = &quirk_acer_travelmate_2490,
457 },
458 {
459 .callback = dmi_matched,
460 .ident = "Acer Aspire 5610",
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
464 },
465 .driver_data = &quirk_acer_travelmate_2490,
466 },
467 {
468 .callback = dmi_matched,
469 .ident = "Acer Aspire 5630",
470 .matches = {
471 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
473 },
474 .driver_data = &quirk_acer_travelmate_2490,
475 },
476 {
477 .callback = dmi_matched,
478 .ident = "Acer Aspire 5650",
479 .matches = {
480 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
482 },
483 .driver_data = &quirk_acer_travelmate_2490,
484 },
485 {
486 .callback = dmi_matched,
487 .ident = "Acer Aspire 5680",
488 .matches = {
489 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
491 },
492 .driver_data = &quirk_acer_travelmate_2490,
493 },
494 {
495 .callback = dmi_matched,
496 .ident = "Acer Aspire 9110",
497 .matches = {
498 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
500 },
501 .driver_data = &quirk_acer_travelmate_2490,
502 },
503 {
504 .callback = dmi_matched,
505 .ident = "Acer TravelMate 2490",
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
509 },
510 .driver_data = &quirk_acer_travelmate_2490,
511 },
512 {
513 .callback = dmi_matched,
514 .ident = "Acer TravelMate 4200",
515 .matches = {
516 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
518 },
519 .driver_data = &quirk_acer_travelmate_2490,
520 },
521 {
522 .callback = set_force_caps,
523 .ident = "Acer Aspire Switch 10E SW3-016",
524 .matches = {
525 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
526 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
527 },
528 .driver_data = (void *)ACER_CAP_KBD_DOCK,
529 },
530 {
531 .callback = set_force_caps,
532 .ident = "Acer Aspire Switch 10 SW5-012",
533 .matches = {
534 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
535 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
536 },
537 .driver_data = (void *)ACER_CAP_KBD_DOCK,
538 },
539 {
540 .callback = set_force_caps,
541 .ident = "Acer Aspire Switch V 10 SW5-017",
542 .matches = {
543 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
544 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
545 },
546 .driver_data = (void *)ACER_CAP_KBD_DOCK,
547 },
548 {
549 .callback = set_force_caps,
550 .ident = "Acer One 10 (S1003)",
551 .matches = {
552 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
553 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
554 },
555 .driver_data = (void *)ACER_CAP_KBD_DOCK,
556 },
557 {}
558 };
559
560 /*
561 * This quirk list is for those non-acer machines that have AMW0_GUID1
562 * but supported by acer-wmi in past days. Keeping this quirk list here
563 * is only for backward compatible. Please do not add new machine to
564 * here anymore. Those non-acer machines should be supported by
565 * appropriate wmi drivers.
566 */
567 static const struct dmi_system_id non_acer_quirks[] __initconst = {
568 {
569 .callback = dmi_matched,
570 .ident = "Fujitsu Siemens Amilo Li 1718",
571 .matches = {
572 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
573 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
574 },
575 .driver_data = &quirk_fujitsu_amilo_li_1718,
576 },
577 {
578 .callback = dmi_matched,
579 .ident = "Medion MD 98300",
580 .matches = {
581 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
582 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
583 },
584 .driver_data = &quirk_medion_md_98300,
585 },
586 {
587 .callback = dmi_matched,
588 .ident = "Lenovo Ideapad S205",
589 .matches = {
590 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
591 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
592 },
593 .driver_data = &quirk_lenovo_ideapad_s205,
594 },
595 {
596 .callback = dmi_matched,
597 .ident = "Lenovo Ideapad S205 (Brazos)",
598 .matches = {
599 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
600 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
601 },
602 .driver_data = &quirk_lenovo_ideapad_s205,
603 },
604 {
605 .callback = dmi_matched,
606 .ident = "Lenovo 3000 N200",
607 .matches = {
608 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
609 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
610 },
611 .driver_data = &quirk_fujitsu_amilo_li_1718,
612 },
613 {
614 .callback = dmi_matched,
615 .ident = "Lenovo Ideapad S205-10382JG",
616 .matches = {
617 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
618 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
619 },
620 .driver_data = &quirk_lenovo_ideapad_s205,
621 },
622 {
623 .callback = dmi_matched,
624 .ident = "Lenovo Ideapad S205-1038DPG",
625 .matches = {
626 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
627 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
628 },
629 .driver_data = &quirk_lenovo_ideapad_s205,
630 },
631 {}
632 };
633
634 static int __init
video_set_backlight_video_vendor(const struct dmi_system_id *d)635 video_set_backlight_video_vendor(const struct dmi_system_id *d)
636 {
637 interface->capability &= ~ACER_CAP_BRIGHTNESS;
638 pr_info("Brightness must be controlled by generic video driver\n");
639 return 0;
640 }
641
642 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
643 {
644 .callback = video_set_backlight_video_vendor,
645 .ident = "Acer TravelMate 4750",
646 .matches = {
647 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
648 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
649 },
650 },
651 {
652 .callback = video_set_backlight_video_vendor,
653 .ident = "Acer Extensa 5235",
654 .matches = {
655 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
656 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
657 },
658 },
659 {
660 .callback = video_set_backlight_video_vendor,
661 .ident = "Acer TravelMate 5760",
662 .matches = {
663 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
664 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
665 },
666 },
667 {
668 .callback = video_set_backlight_video_vendor,
669 .ident = "Acer Aspire 5750",
670 .matches = {
671 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
672 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
673 },
674 },
675 {
676 .callback = video_set_backlight_video_vendor,
677 .ident = "Acer Aspire 5741",
678 .matches = {
679 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
680 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
681 },
682 },
683 {
684 /*
685 * Note no video_set_backlight_video_vendor, we must use the
686 * acer interface, as there is no native backlight interface.
687 */
688 .ident = "Acer KAV80",
689 .matches = {
690 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
691 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
692 },
693 },
694 {}
695 };
696
697 /* Find which quirks are needed for a particular vendor/ model pair */
find_quirks(void)698 static void __init find_quirks(void)
699 {
700 if (!force_series) {
701 dmi_check_system(acer_quirks);
702 dmi_check_system(non_acer_quirks);
703 } else if (force_series == 2490) {
704 quirks = &quirk_acer_travelmate_2490;
705 }
706
707 if (quirks == NULL)
708 quirks = &quirk_unknown;
709
710 set_quirks();
711 }
712
713 /*
714 * General interface convenience methods
715 */
716
has_cap(u32 cap)717 static bool has_cap(u32 cap)
718 {
719 return interface->capability & cap;
720 }
721
722 /*
723 * AMW0 (V1) interface
724 */
725 struct wmab_args {
726 u32 eax;
727 u32 ebx;
728 u32 ecx;
729 u32 edx;
730 };
731
732 struct wmab_ret {
733 u32 eax;
734 u32 ebx;
735 u32 ecx;
736 u32 edx;
737 u32 eex;
738 };
739
wmab_execute(struct wmab_args *regbuf, struct acpi_buffer *result)740 static acpi_status wmab_execute(struct wmab_args *regbuf,
741 struct acpi_buffer *result)
742 {
743 struct acpi_buffer input;
744 acpi_status status;
745 input.length = sizeof(struct wmab_args);
746 input.pointer = (u8 *)regbuf;
747
748 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
749
750 return status;
751 }
752
AMW0_get_u32(u32 *value, u32 cap)753 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
754 {
755 int err;
756 u8 result;
757
758 switch (cap) {
759 case ACER_CAP_MAILLED:
760 switch (quirks->mailled) {
761 default:
762 err = ec_read(0xA, &result);
763 if (err)
764 return AE_ERROR;
765 *value = (result >> 7) & 0x1;
766 return AE_OK;
767 }
768 break;
769 case ACER_CAP_WIRELESS:
770 switch (quirks->wireless) {
771 case 1:
772 err = ec_read(0x7B, &result);
773 if (err)
774 return AE_ERROR;
775 *value = result & 0x1;
776 return AE_OK;
777 case 2:
778 err = ec_read(0x71, &result);
779 if (err)
780 return AE_ERROR;
781 *value = result & 0x1;
782 return AE_OK;
783 case 3:
784 err = ec_read(0x78, &result);
785 if (err)
786 return AE_ERROR;
787 *value = result & 0x1;
788 return AE_OK;
789 default:
790 err = ec_read(0xA, &result);
791 if (err)
792 return AE_ERROR;
793 *value = (result >> 2) & 0x1;
794 return AE_OK;
795 }
796 break;
797 case ACER_CAP_BLUETOOTH:
798 switch (quirks->bluetooth) {
799 default:
800 err = ec_read(0xA, &result);
801 if (err)
802 return AE_ERROR;
803 *value = (result >> 4) & 0x1;
804 return AE_OK;
805 }
806 break;
807 case ACER_CAP_BRIGHTNESS:
808 switch (quirks->brightness) {
809 default:
810 err = ec_read(0x83, &result);
811 if (err)
812 return AE_ERROR;
813 *value = result;
814 return AE_OK;
815 }
816 break;
817 default:
818 return AE_ERROR;
819 }
820 return AE_OK;
821 }
822
AMW0_set_u32(u32 value, u32 cap)823 static acpi_status AMW0_set_u32(u32 value, u32 cap)
824 {
825 struct wmab_args args;
826
827 args.eax = ACER_AMW0_WRITE;
828 args.ebx = value ? (1<<8) : 0;
829 args.ecx = args.edx = 0;
830
831 switch (cap) {
832 case ACER_CAP_MAILLED:
833 if (value > 1)
834 return AE_BAD_PARAMETER;
835 args.ebx |= ACER_AMW0_MAILLED_MASK;
836 break;
837 case ACER_CAP_WIRELESS:
838 if (value > 1)
839 return AE_BAD_PARAMETER;
840 args.ebx |= ACER_AMW0_WIRELESS_MASK;
841 break;
842 case ACER_CAP_BLUETOOTH:
843 if (value > 1)
844 return AE_BAD_PARAMETER;
845 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
846 break;
847 case ACER_CAP_BRIGHTNESS:
848 if (value > max_brightness)
849 return AE_BAD_PARAMETER;
850 switch (quirks->brightness) {
851 default:
852 return ec_write(0x83, value);
853 break;
854 }
855 default:
856 return AE_ERROR;
857 }
858
859 /* Actually do the set */
860 return wmab_execute(&args, NULL);
861 }
862
AMW0_find_mailled(void)863 static acpi_status __init AMW0_find_mailled(void)
864 {
865 struct wmab_args args;
866 struct wmab_ret ret;
867 acpi_status status = AE_OK;
868 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
869 union acpi_object *obj;
870
871 args.eax = 0x86;
872 args.ebx = args.ecx = args.edx = 0;
873
874 status = wmab_execute(&args, &out);
875 if (ACPI_FAILURE(status))
876 return status;
877
878 obj = (union acpi_object *) out.pointer;
879 if (obj && obj->type == ACPI_TYPE_BUFFER &&
880 obj->buffer.length == sizeof(struct wmab_ret)) {
881 ret = *((struct wmab_ret *) obj->buffer.pointer);
882 } else {
883 kfree(out.pointer);
884 return AE_ERROR;
885 }
886
887 if (ret.eex & 0x1)
888 interface->capability |= ACER_CAP_MAILLED;
889
890 kfree(out.pointer);
891
892 return AE_OK;
893 }
894
895 static const struct acpi_device_id norfkill_ids[] __initconst = {
896 { "VPC2004", 0},
897 { "IBM0068", 0},
898 { "LEN0068", 0},
899 { "SNY5001", 0}, /* sony-laptop in charge */
900 { "HPQ6601", 0},
901 { "", 0},
902 };
903
AMW0_set_cap_acpi_check_device(void)904 static int __init AMW0_set_cap_acpi_check_device(void)
905 {
906 const struct acpi_device_id *id;
907
908 for (id = norfkill_ids; id->id[0]; id++)
909 if (acpi_dev_found(id->id))
910 return true;
911
912 return false;
913 }
914
AMW0_set_capabilities(void)915 static acpi_status __init AMW0_set_capabilities(void)
916 {
917 struct wmab_args args;
918 struct wmab_ret ret;
919 acpi_status status;
920 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
921 union acpi_object *obj;
922
923 /*
924 * On laptops with this strange GUID (non Acer), normal probing doesn't
925 * work.
926 */
927 if (wmi_has_guid(AMW0_GUID2)) {
928 if ((quirks != &quirk_unknown) ||
929 !AMW0_set_cap_acpi_check_device())
930 interface->capability |= ACER_CAP_WIRELESS;
931 return AE_OK;
932 }
933
934 args.eax = ACER_AMW0_WRITE;
935 args.ecx = args.edx = 0;
936
937 args.ebx = 0xa2 << 8;
938 args.ebx |= ACER_AMW0_WIRELESS_MASK;
939
940 status = wmab_execute(&args, &out);
941 if (ACPI_FAILURE(status))
942 return status;
943
944 obj = out.pointer;
945 if (obj && obj->type == ACPI_TYPE_BUFFER &&
946 obj->buffer.length == sizeof(struct wmab_ret)) {
947 ret = *((struct wmab_ret *) obj->buffer.pointer);
948 } else {
949 status = AE_ERROR;
950 goto out;
951 }
952
953 if (ret.eax & 0x1)
954 interface->capability |= ACER_CAP_WIRELESS;
955
956 args.ebx = 2 << 8;
957 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
958
959 /*
960 * It's ok to use existing buffer for next wmab_execute call.
961 * But we need to kfree(out.pointer) if next wmab_execute fail.
962 */
963 status = wmab_execute(&args, &out);
964 if (ACPI_FAILURE(status))
965 goto out;
966
967 obj = (union acpi_object *) out.pointer;
968 if (obj && obj->type == ACPI_TYPE_BUFFER
969 && obj->buffer.length == sizeof(struct wmab_ret)) {
970 ret = *((struct wmab_ret *) obj->buffer.pointer);
971 } else {
972 status = AE_ERROR;
973 goto out;
974 }
975
976 if (ret.eax & 0x1)
977 interface->capability |= ACER_CAP_BLUETOOTH;
978
979 /*
980 * This appears to be safe to enable, since all Wistron based laptops
981 * appear to use the same EC register for brightness, even if they
982 * differ for wireless, etc
983 */
984 if (quirks->brightness >= 0)
985 interface->capability |= ACER_CAP_BRIGHTNESS;
986
987 status = AE_OK;
988 out:
989 kfree(out.pointer);
990 return status;
991 }
992
993 static struct wmi_interface AMW0_interface = {
994 .type = ACER_AMW0,
995 };
996
997 static struct wmi_interface AMW0_V2_interface = {
998 .type = ACER_AMW0_V2,
999 };
1000
1001 /*
1002 * New interface (The WMID interface)
1003 */
1004 static acpi_status
WMI_execute_u32(u32 method_id, u32 in, u32 *out)1005 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
1006 {
1007 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
1008 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1009 union acpi_object *obj;
1010 u32 tmp = 0;
1011 acpi_status status;
1012
1013 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
1014
1015 if (ACPI_FAILURE(status))
1016 return status;
1017
1018 obj = (union acpi_object *) result.pointer;
1019 if (obj) {
1020 if (obj->type == ACPI_TYPE_BUFFER &&
1021 (obj->buffer.length == sizeof(u32) ||
1022 obj->buffer.length == sizeof(u64))) {
1023 tmp = *((u32 *) obj->buffer.pointer);
1024 } else if (obj->type == ACPI_TYPE_INTEGER) {
1025 tmp = (u32) obj->integer.value;
1026 }
1027 }
1028
1029 if (out)
1030 *out = tmp;
1031
1032 kfree(result.pointer);
1033
1034 return status;
1035 }
1036
WMID_get_u32(u32 *value, u32 cap)1037 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1038 {
1039 acpi_status status;
1040 u8 tmp;
1041 u32 result, method_id = 0;
1042
1043 switch (cap) {
1044 case ACER_CAP_WIRELESS:
1045 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1046 break;
1047 case ACER_CAP_BLUETOOTH:
1048 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1049 break;
1050 case ACER_CAP_BRIGHTNESS:
1051 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1052 break;
1053 case ACER_CAP_THREEG:
1054 method_id = ACER_WMID_GET_THREEG_METHODID;
1055 break;
1056 case ACER_CAP_MAILLED:
1057 if (quirks->mailled == 1) {
1058 ec_read(0x9f, &tmp);
1059 *value = tmp & 0x1;
1060 return 0;
1061 }
1062 fallthrough;
1063 default:
1064 return AE_ERROR;
1065 }
1066 status = WMI_execute_u32(method_id, 0, &result);
1067
1068 if (ACPI_SUCCESS(status))
1069 *value = (u8)result;
1070
1071 return status;
1072 }
1073
WMID_set_u32(u32 value, u32 cap)1074 static acpi_status WMID_set_u32(u32 value, u32 cap)
1075 {
1076 u32 method_id = 0;
1077 char param;
1078
1079 switch (cap) {
1080 case ACER_CAP_BRIGHTNESS:
1081 if (value > max_brightness)
1082 return AE_BAD_PARAMETER;
1083 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1084 break;
1085 case ACER_CAP_WIRELESS:
1086 if (value > 1)
1087 return AE_BAD_PARAMETER;
1088 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1089 break;
1090 case ACER_CAP_BLUETOOTH:
1091 if (value > 1)
1092 return AE_BAD_PARAMETER;
1093 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1094 break;
1095 case ACER_CAP_THREEG:
1096 if (value > 1)
1097 return AE_BAD_PARAMETER;
1098 method_id = ACER_WMID_SET_THREEG_METHODID;
1099 break;
1100 case ACER_CAP_MAILLED:
1101 if (value > 1)
1102 return AE_BAD_PARAMETER;
1103 if (quirks->mailled == 1) {
1104 param = value ? 0x92 : 0x93;
1105 i8042_lock_chip();
1106 i8042_command(¶m, 0x1059);
1107 i8042_unlock_chip();
1108 return 0;
1109 }
1110 break;
1111 default:
1112 return AE_ERROR;
1113 }
1114 return WMI_execute_u32(method_id, (u32)value, NULL);
1115 }
1116
wmid3_get_device_status(u32 *value, u16 device)1117 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1118 {
1119 struct wmid3_gds_return_value return_value;
1120 acpi_status status;
1121 union acpi_object *obj;
1122 struct wmid3_gds_get_input_param params = {
1123 .function_num = 0x1,
1124 .hotkey_number = commun_fn_key_number,
1125 .devices = device,
1126 };
1127 struct acpi_buffer input = {
1128 sizeof(struct wmid3_gds_get_input_param),
1129 ¶ms
1130 };
1131 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1132
1133 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1134 if (ACPI_FAILURE(status))
1135 return status;
1136
1137 obj = output.pointer;
1138
1139 if (!obj)
1140 return AE_ERROR;
1141 else if (obj->type != ACPI_TYPE_BUFFER) {
1142 kfree(obj);
1143 return AE_ERROR;
1144 }
1145 if (obj->buffer.length != 8) {
1146 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1147 kfree(obj);
1148 return AE_ERROR;
1149 }
1150
1151 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1152 kfree(obj);
1153
1154 if (return_value.error_code || return_value.ec_return_value)
1155 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1156 device,
1157 return_value.error_code,
1158 return_value.ec_return_value);
1159 else
1160 *value = !!(return_value.devices & device);
1161
1162 return status;
1163 }
1164
wmid_v2_get_u32(u32 *value, u32 cap)1165 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1166 {
1167 u16 device;
1168
1169 switch (cap) {
1170 case ACER_CAP_WIRELESS:
1171 device = ACER_WMID3_GDS_WIRELESS;
1172 break;
1173 case ACER_CAP_BLUETOOTH:
1174 device = ACER_WMID3_GDS_BLUETOOTH;
1175 break;
1176 case ACER_CAP_THREEG:
1177 device = ACER_WMID3_GDS_THREEG;
1178 break;
1179 default:
1180 return AE_ERROR;
1181 }
1182 return wmid3_get_device_status(value, device);
1183 }
1184
wmid3_set_device_status(u32 value, u16 device)1185 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1186 {
1187 struct wmid3_gds_return_value return_value;
1188 acpi_status status;
1189 union acpi_object *obj;
1190 u16 devices;
1191 struct wmid3_gds_get_input_param get_params = {
1192 .function_num = 0x1,
1193 .hotkey_number = commun_fn_key_number,
1194 .devices = commun_func_bitmap,
1195 };
1196 struct acpi_buffer get_input = {
1197 sizeof(struct wmid3_gds_get_input_param),
1198 &get_params
1199 };
1200 struct wmid3_gds_set_input_param set_params = {
1201 .function_num = 0x2,
1202 .hotkey_number = commun_fn_key_number,
1203 .devices = commun_func_bitmap,
1204 };
1205 struct acpi_buffer set_input = {
1206 sizeof(struct wmid3_gds_set_input_param),
1207 &set_params
1208 };
1209 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1210 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1211
1212 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1213 if (ACPI_FAILURE(status))
1214 return status;
1215
1216 obj = output.pointer;
1217
1218 if (!obj)
1219 return AE_ERROR;
1220 else if (obj->type != ACPI_TYPE_BUFFER) {
1221 kfree(obj);
1222 return AE_ERROR;
1223 }
1224 if (obj->buffer.length != 8) {
1225 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1226 kfree(obj);
1227 return AE_ERROR;
1228 }
1229
1230 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1231 kfree(obj);
1232
1233 if (return_value.error_code || return_value.ec_return_value) {
1234 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1235 return_value.error_code,
1236 return_value.ec_return_value);
1237 return status;
1238 }
1239
1240 devices = return_value.devices;
1241 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1242
1243 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1244 if (ACPI_FAILURE(status))
1245 return status;
1246
1247 obj = output2.pointer;
1248
1249 if (!obj)
1250 return AE_ERROR;
1251 else if (obj->type != ACPI_TYPE_BUFFER) {
1252 kfree(obj);
1253 return AE_ERROR;
1254 }
1255 if (obj->buffer.length != 4) {
1256 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1257 kfree(obj);
1258 return AE_ERROR;
1259 }
1260
1261 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1262 kfree(obj);
1263
1264 if (return_value.error_code || return_value.ec_return_value)
1265 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1266 return_value.error_code,
1267 return_value.ec_return_value);
1268
1269 return status;
1270 }
1271
wmid_v2_set_u32(u32 value, u32 cap)1272 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1273 {
1274 u16 device;
1275
1276 switch (cap) {
1277 case ACER_CAP_WIRELESS:
1278 device = ACER_WMID3_GDS_WIRELESS;
1279 break;
1280 case ACER_CAP_BLUETOOTH:
1281 device = ACER_WMID3_GDS_BLUETOOTH;
1282 break;
1283 case ACER_CAP_THREEG:
1284 device = ACER_WMID3_GDS_THREEG;
1285 break;
1286 default:
1287 return AE_ERROR;
1288 }
1289 return wmid3_set_device_status(value, device);
1290 }
1291
type_aa_dmi_decode(const struct dmi_header *header, void *d)1292 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1293 {
1294 struct hotkey_function_type_aa *type_aa;
1295
1296 /* We are looking for OEM-specific Type AAh */
1297 if (header->type != 0xAA)
1298 return;
1299
1300 has_type_aa = true;
1301 type_aa = (struct hotkey_function_type_aa *) header;
1302
1303 pr_info("Function bitmap for Communication Button: 0x%x\n",
1304 type_aa->commun_func_bitmap);
1305 commun_func_bitmap = type_aa->commun_func_bitmap;
1306
1307 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1308 interface->capability |= ACER_CAP_WIRELESS;
1309 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1310 interface->capability |= ACER_CAP_THREEG;
1311 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1312 interface->capability |= ACER_CAP_BLUETOOTH;
1313 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1314 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1315
1316 commun_fn_key_number = type_aa->commun_fn_key_number;
1317 }
1318
WMID_set_capabilities(void)1319 static acpi_status __init WMID_set_capabilities(void)
1320 {
1321 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1322 union acpi_object *obj;
1323 acpi_status status;
1324 u32 devices;
1325
1326 status = wmi_query_block(WMID_GUID2, 0, &out);
1327 if (ACPI_FAILURE(status))
1328 return status;
1329
1330 obj = (union acpi_object *) out.pointer;
1331 if (obj) {
1332 if (obj->type == ACPI_TYPE_BUFFER &&
1333 (obj->buffer.length == sizeof(u32) ||
1334 obj->buffer.length == sizeof(u64))) {
1335 devices = *((u32 *) obj->buffer.pointer);
1336 } else if (obj->type == ACPI_TYPE_INTEGER) {
1337 devices = (u32) obj->integer.value;
1338 } else {
1339 kfree(out.pointer);
1340 return AE_ERROR;
1341 }
1342 } else {
1343 kfree(out.pointer);
1344 return AE_ERROR;
1345 }
1346
1347 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1348 if (devices & 0x07)
1349 interface->capability |= ACER_CAP_WIRELESS;
1350 if (devices & 0x40)
1351 interface->capability |= ACER_CAP_THREEG;
1352 if (devices & 0x10)
1353 interface->capability |= ACER_CAP_BLUETOOTH;
1354
1355 if (!(devices & 0x20))
1356 max_brightness = 0x9;
1357
1358 kfree(out.pointer);
1359 return status;
1360 }
1361
1362 static struct wmi_interface wmid_interface = {
1363 .type = ACER_WMID,
1364 };
1365
1366 static struct wmi_interface wmid_v2_interface = {
1367 .type = ACER_WMID_v2,
1368 };
1369
1370 /*
1371 * Generic Device (interface-independent)
1372 */
1373
get_u32(u32 *value, u32 cap)1374 static acpi_status get_u32(u32 *value, u32 cap)
1375 {
1376 acpi_status status = AE_ERROR;
1377
1378 switch (interface->type) {
1379 case ACER_AMW0:
1380 status = AMW0_get_u32(value, cap);
1381 break;
1382 case ACER_AMW0_V2:
1383 if (cap == ACER_CAP_MAILLED) {
1384 status = AMW0_get_u32(value, cap);
1385 break;
1386 }
1387 fallthrough;
1388 case ACER_WMID:
1389 status = WMID_get_u32(value, cap);
1390 break;
1391 case ACER_WMID_v2:
1392 if (cap & (ACER_CAP_WIRELESS |
1393 ACER_CAP_BLUETOOTH |
1394 ACER_CAP_THREEG))
1395 status = wmid_v2_get_u32(value, cap);
1396 else if (wmi_has_guid(WMID_GUID2))
1397 status = WMID_get_u32(value, cap);
1398 break;
1399 }
1400
1401 return status;
1402 }
1403
set_u32(u32 value, u32 cap)1404 static acpi_status set_u32(u32 value, u32 cap)
1405 {
1406 acpi_status status;
1407
1408 if (interface->capability & cap) {
1409 switch (interface->type) {
1410 case ACER_AMW0:
1411 return AMW0_set_u32(value, cap);
1412 case ACER_AMW0_V2:
1413 if (cap == ACER_CAP_MAILLED)
1414 return AMW0_set_u32(value, cap);
1415
1416 /*
1417 * On some models, some WMID methods don't toggle
1418 * properly. For those cases, we want to run the AMW0
1419 * method afterwards to be certain we've really toggled
1420 * the device state.
1421 */
1422 if (cap == ACER_CAP_WIRELESS ||
1423 cap == ACER_CAP_BLUETOOTH) {
1424 status = WMID_set_u32(value, cap);
1425 if (ACPI_FAILURE(status))
1426 return status;
1427
1428 return AMW0_set_u32(value, cap);
1429 }
1430 fallthrough;
1431 case ACER_WMID:
1432 return WMID_set_u32(value, cap);
1433 case ACER_WMID_v2:
1434 if (cap & (ACER_CAP_WIRELESS |
1435 ACER_CAP_BLUETOOTH |
1436 ACER_CAP_THREEG))
1437 return wmid_v2_set_u32(value, cap);
1438 else if (wmi_has_guid(WMID_GUID2))
1439 return WMID_set_u32(value, cap);
1440 fallthrough;
1441 default:
1442 return AE_BAD_PARAMETER;
1443 }
1444 }
1445 return AE_BAD_PARAMETER;
1446 }
1447
acer_commandline_init(void)1448 static void __init acer_commandline_init(void)
1449 {
1450 /*
1451 * These will all fail silently if the value given is invalid, or the
1452 * capability isn't available on the given interface
1453 */
1454 if (mailled >= 0)
1455 set_u32(mailled, ACER_CAP_MAILLED);
1456 if (!has_type_aa && threeg >= 0)
1457 set_u32(threeg, ACER_CAP_THREEG);
1458 if (brightness >= 0)
1459 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1460 }
1461
1462 /*
1463 * LED device (Mail LED only, no other LEDs known yet)
1464 */
mail_led_set(struct led_classdev *led_cdev, enum led_brightness value)1465 static void mail_led_set(struct led_classdev *led_cdev,
1466 enum led_brightness value)
1467 {
1468 set_u32(value, ACER_CAP_MAILLED);
1469 }
1470
1471 static struct led_classdev mail_led = {
1472 .name = "acer-wmi::mail",
1473 .brightness_set = mail_led_set,
1474 };
1475
acer_led_init(struct device *dev)1476 static int acer_led_init(struct device *dev)
1477 {
1478 return led_classdev_register(dev, &mail_led);
1479 }
1480
acer_led_exit(void)1481 static void acer_led_exit(void)
1482 {
1483 set_u32(LED_OFF, ACER_CAP_MAILLED);
1484 led_classdev_unregister(&mail_led);
1485 }
1486
1487 /*
1488 * Backlight device
1489 */
1490 static struct backlight_device *acer_backlight_device;
1491
read_brightness(struct backlight_device *bd)1492 static int read_brightness(struct backlight_device *bd)
1493 {
1494 u32 value;
1495 get_u32(&value, ACER_CAP_BRIGHTNESS);
1496 return value;
1497 }
1498
update_bl_status(struct backlight_device *bd)1499 static int update_bl_status(struct backlight_device *bd)
1500 {
1501 int intensity = bd->props.brightness;
1502
1503 if (bd->props.power != FB_BLANK_UNBLANK)
1504 intensity = 0;
1505 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1506 intensity = 0;
1507
1508 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1509
1510 return 0;
1511 }
1512
1513 static const struct backlight_ops acer_bl_ops = {
1514 .get_brightness = read_brightness,
1515 .update_status = update_bl_status,
1516 };
1517
acer_backlight_init(struct device *dev)1518 static int acer_backlight_init(struct device *dev)
1519 {
1520 struct backlight_properties props;
1521 struct backlight_device *bd;
1522
1523 memset(&props, 0, sizeof(struct backlight_properties));
1524 props.type = BACKLIGHT_PLATFORM;
1525 props.max_brightness = max_brightness;
1526 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1527 &props);
1528 if (IS_ERR(bd)) {
1529 pr_err("Could not register Acer backlight device\n");
1530 acer_backlight_device = NULL;
1531 return PTR_ERR(bd);
1532 }
1533
1534 acer_backlight_device = bd;
1535
1536 bd->props.power = FB_BLANK_UNBLANK;
1537 bd->props.brightness = read_brightness(bd);
1538 backlight_update_status(bd);
1539 return 0;
1540 }
1541
acer_backlight_exit(void)1542 static void acer_backlight_exit(void)
1543 {
1544 backlight_device_unregister(acer_backlight_device);
1545 }
1546
1547 /*
1548 * Accelerometer device
1549 */
1550 static acpi_handle gsensor_handle;
1551
acer_gsensor_init(void)1552 static int acer_gsensor_init(void)
1553 {
1554 acpi_status status;
1555 struct acpi_buffer output;
1556 union acpi_object out_obj;
1557
1558 output.length = sizeof(out_obj);
1559 output.pointer = &out_obj;
1560 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1561 if (ACPI_FAILURE(status))
1562 return -1;
1563
1564 return 0;
1565 }
1566
acer_gsensor_open(struct input_dev *input)1567 static int acer_gsensor_open(struct input_dev *input)
1568 {
1569 return acer_gsensor_init();
1570 }
1571
acer_gsensor_event(void)1572 static int acer_gsensor_event(void)
1573 {
1574 acpi_status status;
1575 struct acpi_buffer output;
1576 union acpi_object out_obj[5];
1577
1578 if (!acer_wmi_accel_dev)
1579 return -1;
1580
1581 output.length = sizeof(out_obj);
1582 output.pointer = out_obj;
1583
1584 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1585 if (ACPI_FAILURE(status))
1586 return -1;
1587
1588 if (out_obj->package.count != 4)
1589 return -1;
1590
1591 input_report_abs(acer_wmi_accel_dev, ABS_X,
1592 (s16)out_obj->package.elements[0].integer.value);
1593 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1594 (s16)out_obj->package.elements[1].integer.value);
1595 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1596 (s16)out_obj->package.elements[2].integer.value);
1597 input_sync(acer_wmi_accel_dev);
1598 return 0;
1599 }
1600
1601 /*
1602 * Switch series keyboard dock status
1603 */
acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)1604 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1605 {
1606 switch (kbd_dock_state) {
1607 case 0x01: /* Docked, traditional clamshell laptop mode */
1608 return 0;
1609 case 0x04: /* Stand-alone tablet */
1610 case 0x40: /* Docked, tent mode, keyboard not usable */
1611 return 1;
1612 default:
1613 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1614 }
1615
1616 return 0;
1617 }
1618
acer_kbd_dock_get_initial_state(void)1619 static void acer_kbd_dock_get_initial_state(void)
1620 {
1621 u8 *output, input[8] = { 0x05, 0x00, };
1622 struct acpi_buffer input_buf = { sizeof(input), input };
1623 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1624 union acpi_object *obj;
1625 acpi_status status;
1626 int sw_tablet_mode;
1627
1628 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1629 if (ACPI_FAILURE(status)) {
1630 ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
1631 return;
1632 }
1633
1634 obj = output_buf.pointer;
1635 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1636 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1637 goto out_free_obj;
1638 }
1639
1640 output = obj->buffer.pointer;
1641 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1642 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1643 output[0], output[3]);
1644 goto out_free_obj;
1645 }
1646
1647 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1648 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1649
1650 out_free_obj:
1651 kfree(obj);
1652 }
1653
acer_kbd_dock_event(const struct event_return_value *event)1654 static void acer_kbd_dock_event(const struct event_return_value *event)
1655 {
1656 int sw_tablet_mode;
1657
1658 if (!has_cap(ACER_CAP_KBD_DOCK))
1659 return;
1660
1661 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1662 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1663 input_sync(acer_wmi_input_dev);
1664 }
1665
1666 /*
1667 * Rfkill devices
1668 */
1669 static void acer_rfkill_update(struct work_struct *ignored);
1670 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
acer_rfkill_update(struct work_struct *ignored)1671 static void acer_rfkill_update(struct work_struct *ignored)
1672 {
1673 u32 state;
1674 acpi_status status;
1675
1676 if (has_cap(ACER_CAP_WIRELESS)) {
1677 status = get_u32(&state, ACER_CAP_WIRELESS);
1678 if (ACPI_SUCCESS(status)) {
1679 if (quirks->wireless == 3)
1680 rfkill_set_hw_state(wireless_rfkill, !state);
1681 else
1682 rfkill_set_sw_state(wireless_rfkill, !state);
1683 }
1684 }
1685
1686 if (has_cap(ACER_CAP_BLUETOOTH)) {
1687 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1688 if (ACPI_SUCCESS(status))
1689 rfkill_set_sw_state(bluetooth_rfkill, !state);
1690 }
1691
1692 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1693 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1694 if (ACPI_SUCCESS(status))
1695 rfkill_set_sw_state(threeg_rfkill, !state);
1696 }
1697
1698 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1699 }
1700
acer_rfkill_set(void *data, bool blocked)1701 static int acer_rfkill_set(void *data, bool blocked)
1702 {
1703 acpi_status status;
1704 u32 cap = (unsigned long)data;
1705
1706 if (rfkill_inited) {
1707 status = set_u32(!blocked, cap);
1708 if (ACPI_FAILURE(status))
1709 return -ENODEV;
1710 }
1711
1712 return 0;
1713 }
1714
1715 static const struct rfkill_ops acer_rfkill_ops = {
1716 .set_block = acer_rfkill_set,
1717 };
1718
acer_rfkill_register(struct device *dev, enum rfkill_type type, char *name, u32 cap)1719 static struct rfkill *acer_rfkill_register(struct device *dev,
1720 enum rfkill_type type,
1721 char *name, u32 cap)
1722 {
1723 int err;
1724 struct rfkill *rfkill_dev;
1725 u32 state;
1726 acpi_status status;
1727
1728 rfkill_dev = rfkill_alloc(name, dev, type,
1729 &acer_rfkill_ops,
1730 (void *)(unsigned long)cap);
1731 if (!rfkill_dev)
1732 return ERR_PTR(-ENOMEM);
1733
1734 status = get_u32(&state, cap);
1735
1736 err = rfkill_register(rfkill_dev);
1737 if (err) {
1738 rfkill_destroy(rfkill_dev);
1739 return ERR_PTR(err);
1740 }
1741
1742 if (ACPI_SUCCESS(status))
1743 rfkill_set_sw_state(rfkill_dev, !state);
1744
1745 return rfkill_dev;
1746 }
1747
acer_rfkill_init(struct device *dev)1748 static int acer_rfkill_init(struct device *dev)
1749 {
1750 int err;
1751
1752 if (has_cap(ACER_CAP_WIRELESS)) {
1753 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1754 "acer-wireless", ACER_CAP_WIRELESS);
1755 if (IS_ERR(wireless_rfkill)) {
1756 err = PTR_ERR(wireless_rfkill);
1757 goto error_wireless;
1758 }
1759 }
1760
1761 if (has_cap(ACER_CAP_BLUETOOTH)) {
1762 bluetooth_rfkill = acer_rfkill_register(dev,
1763 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1764 ACER_CAP_BLUETOOTH);
1765 if (IS_ERR(bluetooth_rfkill)) {
1766 err = PTR_ERR(bluetooth_rfkill);
1767 goto error_bluetooth;
1768 }
1769 }
1770
1771 if (has_cap(ACER_CAP_THREEG)) {
1772 threeg_rfkill = acer_rfkill_register(dev,
1773 RFKILL_TYPE_WWAN, "acer-threeg",
1774 ACER_CAP_THREEG);
1775 if (IS_ERR(threeg_rfkill)) {
1776 err = PTR_ERR(threeg_rfkill);
1777 goto error_threeg;
1778 }
1779 }
1780
1781 rfkill_inited = true;
1782
1783 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1784 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1785 schedule_delayed_work(&acer_rfkill_work,
1786 round_jiffies_relative(HZ));
1787
1788 return 0;
1789
1790 error_threeg:
1791 if (has_cap(ACER_CAP_BLUETOOTH)) {
1792 rfkill_unregister(bluetooth_rfkill);
1793 rfkill_destroy(bluetooth_rfkill);
1794 }
1795 error_bluetooth:
1796 if (has_cap(ACER_CAP_WIRELESS)) {
1797 rfkill_unregister(wireless_rfkill);
1798 rfkill_destroy(wireless_rfkill);
1799 }
1800 error_wireless:
1801 return err;
1802 }
1803
acer_rfkill_exit(void)1804 static void acer_rfkill_exit(void)
1805 {
1806 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1807 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1808 cancel_delayed_work_sync(&acer_rfkill_work);
1809
1810 if (has_cap(ACER_CAP_WIRELESS)) {
1811 rfkill_unregister(wireless_rfkill);
1812 rfkill_destroy(wireless_rfkill);
1813 }
1814
1815 if (has_cap(ACER_CAP_BLUETOOTH)) {
1816 rfkill_unregister(bluetooth_rfkill);
1817 rfkill_destroy(bluetooth_rfkill);
1818 }
1819
1820 if (has_cap(ACER_CAP_THREEG)) {
1821 rfkill_unregister(threeg_rfkill);
1822 rfkill_destroy(threeg_rfkill);
1823 }
1824 return;
1825 }
1826
acer_wmi_notify(u32 value, void *context)1827 static void acer_wmi_notify(u32 value, void *context)
1828 {
1829 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1830 union acpi_object *obj;
1831 struct event_return_value return_value;
1832 acpi_status status;
1833 u16 device_state;
1834 const struct key_entry *key;
1835 u32 scancode;
1836
1837 status = wmi_get_event_data(value, &response);
1838 if (status != AE_OK) {
1839 pr_warn("bad event status 0x%x\n", status);
1840 return;
1841 }
1842
1843 obj = (union acpi_object *)response.pointer;
1844
1845 if (!obj)
1846 return;
1847 if (obj->type != ACPI_TYPE_BUFFER) {
1848 pr_warn("Unknown response received %d\n", obj->type);
1849 kfree(obj);
1850 return;
1851 }
1852 if (obj->buffer.length != 8) {
1853 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1854 kfree(obj);
1855 return;
1856 }
1857
1858 return_value = *((struct event_return_value *)obj->buffer.pointer);
1859 kfree(obj);
1860
1861 switch (return_value.function) {
1862 case WMID_HOTKEY_EVENT:
1863 device_state = return_value.device_state;
1864 pr_debug("device state: 0x%x\n", device_state);
1865
1866 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1867 return_value.key_num);
1868 if (!key) {
1869 pr_warn("Unknown key number - 0x%x\n",
1870 return_value.key_num);
1871 } else {
1872 scancode = return_value.key_num;
1873 switch (key->keycode) {
1874 case KEY_WLAN:
1875 case KEY_BLUETOOTH:
1876 if (has_cap(ACER_CAP_WIRELESS))
1877 rfkill_set_sw_state(wireless_rfkill,
1878 !(device_state & ACER_WMID3_GDS_WIRELESS));
1879 if (has_cap(ACER_CAP_THREEG))
1880 rfkill_set_sw_state(threeg_rfkill,
1881 !(device_state & ACER_WMID3_GDS_THREEG));
1882 if (has_cap(ACER_CAP_BLUETOOTH))
1883 rfkill_set_sw_state(bluetooth_rfkill,
1884 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1885 break;
1886 case KEY_TOUCHPAD_TOGGLE:
1887 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1888 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1889 }
1890 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1891 }
1892 break;
1893 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1894 acer_gsensor_event();
1895 acer_kbd_dock_event(&return_value);
1896 break;
1897 default:
1898 pr_warn("Unknown function number - %d - %d\n",
1899 return_value.function, return_value.key_num);
1900 break;
1901 }
1902 }
1903
1904 static acpi_status __init
wmid3_set_function_mode(struct func_input_params *params, struct func_return_value *return_value)1905 wmid3_set_function_mode(struct func_input_params *params,
1906 struct func_return_value *return_value)
1907 {
1908 acpi_status status;
1909 union acpi_object *obj;
1910
1911 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1912 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1913
1914 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1915 if (ACPI_FAILURE(status))
1916 return status;
1917
1918 obj = output.pointer;
1919
1920 if (!obj)
1921 return AE_ERROR;
1922 else if (obj->type != ACPI_TYPE_BUFFER) {
1923 kfree(obj);
1924 return AE_ERROR;
1925 }
1926 if (obj->buffer.length != 4) {
1927 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1928 kfree(obj);
1929 return AE_ERROR;
1930 }
1931
1932 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1933 kfree(obj);
1934
1935 return status;
1936 }
1937
acer_wmi_enable_ec_raw(void)1938 static int __init acer_wmi_enable_ec_raw(void)
1939 {
1940 struct func_return_value return_value;
1941 acpi_status status;
1942 struct func_input_params params = {
1943 .function_num = 0x1,
1944 .commun_devices = 0xFFFF,
1945 .devices = 0xFFFF,
1946 .app_status = 0x00, /* Launch Manager Deactive */
1947 .app_mask = 0x01,
1948 };
1949
1950 status = wmid3_set_function_mode(¶ms, &return_value);
1951
1952 if (return_value.error_code || return_value.ec_return_value)
1953 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1954 return_value.error_code,
1955 return_value.ec_return_value);
1956 else
1957 pr_info("Enabled EC raw mode\n");
1958
1959 return status;
1960 }
1961
acer_wmi_enable_lm(void)1962 static int __init acer_wmi_enable_lm(void)
1963 {
1964 struct func_return_value return_value;
1965 acpi_status status;
1966 struct func_input_params params = {
1967 .function_num = 0x1,
1968 .commun_devices = 0xFFFF,
1969 .devices = 0xFFFF,
1970 .app_status = 0x01, /* Launch Manager Active */
1971 .app_mask = 0x01,
1972 };
1973
1974 status = wmid3_set_function_mode(¶ms, &return_value);
1975
1976 if (return_value.error_code || return_value.ec_return_value)
1977 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1978 return_value.error_code,
1979 return_value.ec_return_value);
1980
1981 return status;
1982 }
1983
acer_wmi_enable_rf_button(void)1984 static int __init acer_wmi_enable_rf_button(void)
1985 {
1986 struct func_return_value return_value;
1987 acpi_status status;
1988 struct func_input_params params = {
1989 .function_num = 0x1,
1990 .commun_devices = 0xFFFF,
1991 .devices = 0xFFFF,
1992 .app_status = 0x10, /* RF Button Active */
1993 .app_mask = 0x10,
1994 };
1995
1996 status = wmid3_set_function_mode(¶ms, &return_value);
1997
1998 if (return_value.error_code || return_value.ec_return_value)
1999 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2000 return_value.error_code,
2001 return_value.ec_return_value);
2002
2003 return status;
2004 }
2005
acer_wmi_accel_setup(void)2006 static int __init acer_wmi_accel_setup(void)
2007 {
2008 struct acpi_device *adev;
2009 int err;
2010
2011 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2012 if (!adev)
2013 return -ENODEV;
2014
2015 gsensor_handle = acpi_device_handle(adev);
2016 acpi_dev_put(adev);
2017
2018 acer_wmi_accel_dev = input_allocate_device();
2019 if (!acer_wmi_accel_dev)
2020 return -ENOMEM;
2021
2022 acer_wmi_accel_dev->open = acer_gsensor_open;
2023
2024 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2025 acer_wmi_accel_dev->phys = "wmi/input1";
2026 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2027 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2028 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2029 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2030 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2031
2032 err = input_register_device(acer_wmi_accel_dev);
2033 if (err)
2034 goto err_free_dev;
2035
2036 return 0;
2037
2038 err_free_dev:
2039 input_free_device(acer_wmi_accel_dev);
2040 return err;
2041 }
2042
acer_wmi_input_setup(void)2043 static int __init acer_wmi_input_setup(void)
2044 {
2045 acpi_status status;
2046 int err;
2047
2048 acer_wmi_input_dev = input_allocate_device();
2049 if (!acer_wmi_input_dev)
2050 return -ENOMEM;
2051
2052 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2053 acer_wmi_input_dev->phys = "wmi/input0";
2054 acer_wmi_input_dev->id.bustype = BUS_HOST;
2055
2056 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2057 if (err)
2058 goto err_free_dev;
2059
2060 if (has_cap(ACER_CAP_KBD_DOCK))
2061 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2062
2063 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2064 acer_wmi_notify, NULL);
2065 if (ACPI_FAILURE(status)) {
2066 err = -EIO;
2067 goto err_free_dev;
2068 }
2069
2070 if (has_cap(ACER_CAP_KBD_DOCK))
2071 acer_kbd_dock_get_initial_state();
2072
2073 err = input_register_device(acer_wmi_input_dev);
2074 if (err)
2075 goto err_uninstall_notifier;
2076
2077 return 0;
2078
2079 err_uninstall_notifier:
2080 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2081 err_free_dev:
2082 input_free_device(acer_wmi_input_dev);
2083 return err;
2084 }
2085
acer_wmi_input_destroy(void)2086 static void acer_wmi_input_destroy(void)
2087 {
2088 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2089 input_unregister_device(acer_wmi_input_dev);
2090 }
2091
2092 /*
2093 * debugfs functions
2094 */
get_wmid_devices(void)2095 static u32 get_wmid_devices(void)
2096 {
2097 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2098 union acpi_object *obj;
2099 acpi_status status;
2100 u32 devices = 0;
2101
2102 status = wmi_query_block(WMID_GUID2, 0, &out);
2103 if (ACPI_FAILURE(status))
2104 return 0;
2105
2106 obj = (union acpi_object *) out.pointer;
2107 if (obj) {
2108 if (obj->type == ACPI_TYPE_BUFFER &&
2109 (obj->buffer.length == sizeof(u32) ||
2110 obj->buffer.length == sizeof(u64))) {
2111 devices = *((u32 *) obj->buffer.pointer);
2112 } else if (obj->type == ACPI_TYPE_INTEGER) {
2113 devices = (u32) obj->integer.value;
2114 }
2115 }
2116
2117 kfree(out.pointer);
2118 return devices;
2119 }
2120
2121 /*
2122 * Platform device
2123 */
acer_platform_probe(struct platform_device *device)2124 static int acer_platform_probe(struct platform_device *device)
2125 {
2126 int err;
2127
2128 if (has_cap(ACER_CAP_MAILLED)) {
2129 err = acer_led_init(&device->dev);
2130 if (err)
2131 goto error_mailled;
2132 }
2133
2134 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2135 err = acer_backlight_init(&device->dev);
2136 if (err)
2137 goto error_brightness;
2138 }
2139
2140 err = acer_rfkill_init(&device->dev);
2141 if (err)
2142 goto error_rfkill;
2143
2144 return err;
2145
2146 error_rfkill:
2147 if (has_cap(ACER_CAP_BRIGHTNESS))
2148 acer_backlight_exit();
2149 error_brightness:
2150 if (has_cap(ACER_CAP_MAILLED))
2151 acer_led_exit();
2152 error_mailled:
2153 return err;
2154 }
2155
acer_platform_remove(struct platform_device *device)2156 static int acer_platform_remove(struct platform_device *device)
2157 {
2158 if (has_cap(ACER_CAP_MAILLED))
2159 acer_led_exit();
2160 if (has_cap(ACER_CAP_BRIGHTNESS))
2161 acer_backlight_exit();
2162
2163 acer_rfkill_exit();
2164 return 0;
2165 }
2166
2167 #ifdef CONFIG_PM_SLEEP
acer_suspend(struct device *dev)2168 static int acer_suspend(struct device *dev)
2169 {
2170 u32 value;
2171 struct acer_data *data = &interface->data;
2172
2173 if (!data)
2174 return -ENOMEM;
2175
2176 if (has_cap(ACER_CAP_MAILLED)) {
2177 get_u32(&value, ACER_CAP_MAILLED);
2178 set_u32(LED_OFF, ACER_CAP_MAILLED);
2179 data->mailled = value;
2180 }
2181
2182 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2183 get_u32(&value, ACER_CAP_BRIGHTNESS);
2184 data->brightness = value;
2185 }
2186
2187 return 0;
2188 }
2189
acer_resume(struct device *dev)2190 static int acer_resume(struct device *dev)
2191 {
2192 struct acer_data *data = &interface->data;
2193
2194 if (!data)
2195 return -ENOMEM;
2196
2197 if (has_cap(ACER_CAP_MAILLED))
2198 set_u32(data->mailled, ACER_CAP_MAILLED);
2199
2200 if (has_cap(ACER_CAP_BRIGHTNESS))
2201 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2202
2203 if (acer_wmi_accel_dev)
2204 acer_gsensor_init();
2205
2206 return 0;
2207 }
2208 #else
2209 #define acer_suspend NULL
2210 #define acer_resume NULL
2211 #endif
2212
2213 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2214
acer_platform_shutdown(struct platform_device *device)2215 static void acer_platform_shutdown(struct platform_device *device)
2216 {
2217 struct acer_data *data = &interface->data;
2218
2219 if (!data)
2220 return;
2221
2222 if (has_cap(ACER_CAP_MAILLED))
2223 set_u32(LED_OFF, ACER_CAP_MAILLED);
2224 }
2225
2226 static struct platform_driver acer_platform_driver = {
2227 .driver = {
2228 .name = "acer-wmi",
2229 .pm = &acer_pm,
2230 },
2231 .probe = acer_platform_probe,
2232 .remove = acer_platform_remove,
2233 .shutdown = acer_platform_shutdown,
2234 };
2235
2236 static struct platform_device *acer_platform_device;
2237
remove_debugfs(void)2238 static void remove_debugfs(void)
2239 {
2240 debugfs_remove_recursive(interface->debug.root);
2241 }
2242
create_debugfs(void)2243 static void __init create_debugfs(void)
2244 {
2245 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2246
2247 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2248 &interface->debug.wmid_devices);
2249 }
2250
acer_wmi_init(void)2251 static int __init acer_wmi_init(void)
2252 {
2253 int err;
2254
2255 pr_info("Acer Laptop ACPI-WMI Extras\n");
2256
2257 if (dmi_check_system(acer_blacklist)) {
2258 pr_info("Blacklisted hardware detected - not loading\n");
2259 return -ENODEV;
2260 }
2261
2262 find_quirks();
2263
2264 /*
2265 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2266 * machines like Lenovo, Fujitsu and Medion. In the past days,
2267 * acer-wmi driver handled those non-Acer machines by quirks list.
2268 * But actually acer-wmi driver was loaded on any machines that have
2269 * AMW0_GUID1. This behavior is strange because those machines should
2270 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2271 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2272 * should be in Acer/Gateway/Packard Bell white list, or it's already
2273 * in the past quirk list.
2274 */
2275 if (wmi_has_guid(AMW0_GUID1) &&
2276 !dmi_check_system(amw0_whitelist) &&
2277 quirks == &quirk_unknown) {
2278 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2279 return -ENODEV;
2280 }
2281
2282 /*
2283 * Detect which ACPI-WMI interface we're using.
2284 */
2285 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2286 interface = &AMW0_V2_interface;
2287
2288 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2289 interface = &wmid_interface;
2290
2291 if (wmi_has_guid(WMID_GUID3))
2292 interface = &wmid_v2_interface;
2293
2294 if (interface)
2295 dmi_walk(type_aa_dmi_decode, NULL);
2296
2297 if (wmi_has_guid(WMID_GUID2) && interface) {
2298 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2299 pr_err("Unable to detect available WMID devices\n");
2300 return -ENODEV;
2301 }
2302 /* WMID always provides brightness methods */
2303 interface->capability |= ACER_CAP_BRIGHTNESS;
2304 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2305 pr_err("No WMID device detection method found\n");
2306 return -ENODEV;
2307 }
2308
2309 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2310 interface = &AMW0_interface;
2311
2312 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2313 pr_err("Unable to detect available AMW0 devices\n");
2314 return -ENODEV;
2315 }
2316 }
2317
2318 if (wmi_has_guid(AMW0_GUID1))
2319 AMW0_find_mailled();
2320
2321 if (!interface) {
2322 pr_err("No or unsupported WMI interface, unable to load\n");
2323 return -ENODEV;
2324 }
2325
2326 set_quirks();
2327
2328 if (dmi_check_system(video_vendor_dmi_table))
2329 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2330
2331 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2332 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2333
2334 if (wmi_has_guid(WMID_GUID3))
2335 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2336
2337 if (force_caps != -1)
2338 interface->capability = force_caps;
2339
2340 if (wmi_has_guid(WMID_GUID3) &&
2341 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2342 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2343 pr_warn("Cannot enable RF Button Driver\n");
2344
2345 if (ec_raw_mode) {
2346 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2347 pr_err("Cannot enable EC raw mode\n");
2348 return -ENODEV;
2349 }
2350 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2351 pr_err("Cannot enable Launch Manager mode\n");
2352 return -ENODEV;
2353 }
2354 } else if (ec_raw_mode) {
2355 pr_info("No WMID EC raw mode enable method\n");
2356 }
2357
2358 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2359 err = acer_wmi_input_setup();
2360 if (err)
2361 return err;
2362 err = acer_wmi_accel_setup();
2363 if (err && err != -ENODEV)
2364 pr_warn("Cannot enable accelerometer\n");
2365 }
2366
2367 err = platform_driver_register(&acer_platform_driver);
2368 if (err) {
2369 pr_err("Unable to register platform driver\n");
2370 goto error_platform_register;
2371 }
2372
2373 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2374 if (!acer_platform_device) {
2375 err = -ENOMEM;
2376 goto error_device_alloc;
2377 }
2378
2379 err = platform_device_add(acer_platform_device);
2380 if (err)
2381 goto error_device_add;
2382
2383 if (wmi_has_guid(WMID_GUID2)) {
2384 interface->debug.wmid_devices = get_wmid_devices();
2385 create_debugfs();
2386 }
2387
2388 /* Override any initial settings with values from the commandline */
2389 acer_commandline_init();
2390
2391 return 0;
2392
2393 error_device_add:
2394 platform_device_put(acer_platform_device);
2395 error_device_alloc:
2396 platform_driver_unregister(&acer_platform_driver);
2397 error_platform_register:
2398 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2399 acer_wmi_input_destroy();
2400 if (acer_wmi_accel_dev)
2401 input_unregister_device(acer_wmi_accel_dev);
2402
2403 return err;
2404 }
2405
acer_wmi_exit(void)2406 static void __exit acer_wmi_exit(void)
2407 {
2408 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2409 acer_wmi_input_destroy();
2410
2411 if (acer_wmi_accel_dev)
2412 input_unregister_device(acer_wmi_accel_dev);
2413
2414 remove_debugfs();
2415 platform_device_unregister(acer_platform_device);
2416 platform_driver_unregister(&acer_platform_driver);
2417
2418 pr_info("Acer Laptop WMI Extras unloaded\n");
2419 return;
2420 }
2421
2422 module_init(acer_wmi_init);
2423 module_exit(acer_wmi_exit);
2424