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1/*
2 * Acer WMI Laptop Extras
3 *
4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
5 *
6 * Based on acer_acpi:
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/dmi.h>
32#include <linux/fb.h>
33#include <linux/backlight.h>
34#include <linux/leds.h>
35#include <linux/platform_device.h>
36#include <linux/acpi.h>
37#include <linux/i8042.h>
38#include <linux/rfkill.h>
39#include <linux/workqueue.h>
40#include <linux/debugfs.h>
41#include <linux/slab.h>
42#include <linux/input.h>
43#include <linux/input/sparse-keymap.h>
44
45#include <acpi/acpi_drivers.h>
46
47MODULE_AUTHOR("Carlos Corbacho");
48MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
49MODULE_LICENSE("GPL");
50
51/*
52 * Magic Number
53 * Meaning is unknown - this number is required for writing to ACPI for AMW0
54 * (it's also used in acerhk when directly accessing the BIOS)
55 */
56#define ACER_AMW0_WRITE 0x9610
57
58/*
59 * Bit masks for the AMW0 interface
60 */
61#define ACER_AMW0_WIRELESS_MASK 0x35
62#define ACER_AMW0_BLUETOOTH_MASK 0x34
63#define ACER_AMW0_MAILLED_MASK 0x31
64
65/*
66 * Method IDs for WMID interface
67 */
68#define ACER_WMID_GET_WIRELESS_METHODID 1
69#define ACER_WMID_GET_BLUETOOTH_METHODID 2
70#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
71#define ACER_WMID_SET_WIRELESS_METHODID 4
72#define ACER_WMID_SET_BLUETOOTH_METHODID 5
73#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
74#define ACER_WMID_GET_THREEG_METHODID 10
75#define ACER_WMID_SET_THREEG_METHODID 11
76
77/*
78 * Acer ACPI method GUIDs
79 */
80#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
81#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
82#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
83#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
84#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
85
86/*
87 * Acer ACPI event GUIDs
88 */
89#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
90
91MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
92MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
93MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
94
95enum acer_wmi_event_ids {
96 WMID_HOTKEY_EVENT = 0x1,
97};
98
99static const struct key_entry acer_wmi_keymap[] = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
108 {KE_IGNORE, 0x41, {KEY_MUTE} },
109 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
110 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
111 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
112 {KE_IGNORE, 0x45, {KEY_STOP} },
113 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
114 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
115 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
116 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
117 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
118 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
119 {KE_IGNORE, 0x81, {KEY_SLEEP} },
120 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad On/Off */
121 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
122 {KE_END, 0}
123};
124
125static struct input_dev *acer_wmi_input_dev;
126
127struct event_return_value {
128 u8 function;
129 u8 key_num;
130 u16 device_state;
131 u32 reserved;
132} __attribute__((packed));
133
134/*
135 * GUID3 Get Device Status device flags
136 */
137#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
138#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
139#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
140#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
141
142struct lm_input_params {
143 u8 function_num; /* Function Number */
144 u16 commun_devices; /* Communication type devices default status */
145 u16 devices; /* Other type devices default status */
146 u8 lm_status; /* Launch Manager Status */
147 u16 reserved;
148} __attribute__((packed));
149
150struct lm_return_value {
151 u8 error_code; /* Error Code */
152 u8 ec_return_value; /* EC Return Value */
153 u16 reserved;
154} __attribute__((packed));
155
156struct wmid3_gds_input_param { /* Get Device Status input parameter */
157 u8 function_num; /* Function Number */
158 u8 hotkey_number; /* Hotkey Number */
159 u16 devices; /* Get Device */
160} __attribute__((packed));
161
162struct wmid3_gds_return_value { /* Get Device Status return value*/
163 u8 error_code; /* Error Code */
164 u8 ec_return_value; /* EC Return Value */
165 u16 devices; /* Current Device Status */
166 u32 reserved;
167} __attribute__((packed));
168
169struct hotkey_function_type_aa {
170 u8 type;
171 u8 length;
172 u16 handle;
173 u16 commun_func_bitmap;
174} __attribute__((packed));
175
176/*
177 * Interface capability flags
178 */
179#define ACER_CAP_MAILLED (1<<0)
180#define ACER_CAP_WIRELESS (1<<1)
181#define ACER_CAP_BLUETOOTH (1<<2)
182#define ACER_CAP_BRIGHTNESS (1<<3)
183#define ACER_CAP_THREEG (1<<4)
184#define ACER_CAP_ANY (0xFFFFFFFF)
185
186/*
187 * Interface type flags
188 */
189enum interface_flags {
190 ACER_AMW0,
191 ACER_AMW0_V2,
192 ACER_WMID,
193};
194
195#define ACER_DEFAULT_WIRELESS 0
196#define ACER_DEFAULT_BLUETOOTH 0
197#define ACER_DEFAULT_MAILLED 0
198#define ACER_DEFAULT_THREEG 0
199
200static int max_brightness = 0xF;
201
202static int mailled = -1;
203static int brightness = -1;
204static int threeg = -1;
205static int force_series;
206static bool ec_raw_mode;
207static bool has_type_aa;
208
209module_param(mailled, int, 0444);
210module_param(brightness, int, 0444);
211module_param(threeg, int, 0444);
212module_param(force_series, int, 0444);
213module_param(ec_raw_mode, bool, 0444);
214MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
215MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
216MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
217MODULE_PARM_DESC(force_series, "Force a different laptop series");
218MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
219
220struct acer_data {
221 int mailled;
222 int threeg;
223 int brightness;
224};
225
226struct acer_debug {
227 struct dentry *root;
228 struct dentry *devices;
229 u32 wmid_devices;
230};
231
232static struct rfkill *wireless_rfkill;
233static struct rfkill *bluetooth_rfkill;
234static struct rfkill *threeg_rfkill;
235static bool rfkill_inited;
236
237/* Each low-level interface must define at least some of the following */
238struct wmi_interface {
239 /* The WMI device type */
240 u32 type;
241
242 /* The capabilities this interface provides */
243 u32 capability;
244
245 /* Private data for the current interface */
246 struct acer_data data;
247
248 /* debugfs entries associated with this interface */
249 struct acer_debug debug;
250};
251
252/* The static interface pointer, points to the currently detected interface */
253static struct wmi_interface *interface;
254
255/*
256 * Embedded Controller quirks
257 * Some laptops require us to directly access the EC to either enable or query
258 * features that are not available through WMI.
259 */
260
261struct quirk_entry {
262 u8 wireless;
263 u8 mailled;
264 s8 brightness;
265 u8 bluetooth;
266};
267
268static struct quirk_entry *quirks;
269
270static void set_quirks(void)
271{
272 if (!interface)
273 return;
274
275 if (quirks->mailled)
276 interface->capability |= ACER_CAP_MAILLED;
277
278 if (quirks->brightness)
279 interface->capability |= ACER_CAP_BRIGHTNESS;
280}
281
282static int dmi_matched(const struct dmi_system_id *dmi)
283{
284 quirks = dmi->driver_data;
285 return 1;
286}
287
288static struct quirk_entry quirk_unknown = {
289};
290
291static struct quirk_entry quirk_acer_aspire_1520 = {
292 .brightness = -1,
293};
294
295static struct quirk_entry quirk_acer_travelmate_2490 = {
296 .mailled = 1,
297};
298
299/* This AMW0 laptop has no bluetooth */
300static struct quirk_entry quirk_medion_md_98300 = {
301 .wireless = 1,
302};
303
304static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
305 .wireless = 2,
306};
307
308static struct quirk_entry quirk_lenovo_ideapad_s205 = {
309 .wireless = 3,
310};
311
312/* The Aspire One has a dummy ACPI-WMI interface - disable it */
313static struct dmi_system_id __devinitdata acer_blacklist[] = {
314 {
315 .ident = "Acer Aspire One (SSD)",
316 .matches = {
317 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
318 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
319 },
320 },
321 {
322 .ident = "Acer Aspire One (HDD)",
323 .matches = {
324 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
325 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
326 },
327 },
328 {}
329};
330
331static struct dmi_system_id acer_quirks[] = {
332 {
333 .callback = dmi_matched,
334 .ident = "Acer Aspire 1360",
335 .matches = {
336 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
337 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
338 },
339 .driver_data = &quirk_acer_aspire_1520,
340 },
341 {
342 .callback = dmi_matched,
343 .ident = "Acer Aspire 1520",
344 .matches = {
345 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
346 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
347 },
348 .driver_data = &quirk_acer_aspire_1520,
349 },
350 {
351 .callback = dmi_matched,
352 .ident = "Acer Aspire 3100",
353 .matches = {
354 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
355 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
356 },
357 .driver_data = &quirk_acer_travelmate_2490,
358 },
359 {
360 .callback = dmi_matched,
361 .ident = "Acer Aspire 3610",
362 .matches = {
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
365 },
366 .driver_data = &quirk_acer_travelmate_2490,
367 },
368 {
369 .callback = dmi_matched,
370 .ident = "Acer Aspire 5100",
371 .matches = {
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
374 },
375 .driver_data = &quirk_acer_travelmate_2490,
376 },
377 {
378 .callback = dmi_matched,
379 .ident = "Acer Aspire 5610",
380 .matches = {
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
383 },
384 .driver_data = &quirk_acer_travelmate_2490,
385 },
386 {
387 .callback = dmi_matched,
388 .ident = "Acer Aspire 5630",
389 .matches = {
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
392 },
393 .driver_data = &quirk_acer_travelmate_2490,
394 },
395 {
396 .callback = dmi_matched,
397 .ident = "Acer Aspire 5650",
398 .matches = {
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
401 },
402 .driver_data = &quirk_acer_travelmate_2490,
403 },
404 {
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 5680",
407 .matches = {
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
410 },
411 .driver_data = &quirk_acer_travelmate_2490,
412 },
413 {
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 9110",
416 .matches = {
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
419 },
420 .driver_data = &quirk_acer_travelmate_2490,
421 },
422 {
423 .callback = dmi_matched,
424 .ident = "Acer TravelMate 2490",
425 .matches = {
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
428 },
429 .driver_data = &quirk_acer_travelmate_2490,
430 },
431 {
432 .callback = dmi_matched,
433 .ident = "Acer TravelMate 4200",
434 .matches = {
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
437 },
438 .driver_data = &quirk_acer_travelmate_2490,
439 },
440 {
441 .callback = dmi_matched,
442 .ident = "Fujitsu Siemens Amilo Li 1718",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
446 },
447 .driver_data = &quirk_fujitsu_amilo_li_1718,
448 },
449 {
450 .callback = dmi_matched,
451 .ident = "Medion MD 98300",
452 .matches = {
453 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
455 },
456 .driver_data = &quirk_medion_md_98300,
457 },
458 {
459 .callback = dmi_matched,
460 .ident = "Lenovo Ideapad S205",
461 .matches = {
462 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
464 },
465 .driver_data = &quirk_lenovo_ideapad_s205,
466 },
467 {}
468};
469
470/* Find which quirks are needed for a particular vendor/ model pair */
471static void find_quirks(void)
472{
473 if (!force_series) {
474 dmi_check_system(acer_quirks);
475 } else if (force_series == 2490) {
476 quirks = &quirk_acer_travelmate_2490;
477 }
478
479 if (quirks == NULL)
480 quirks = &quirk_unknown;
481
482 set_quirks();
483}
484
485/*
486 * General interface convenience methods
487 */
488
489static bool has_cap(u32 cap)
490{
491 if ((interface->capability & cap) != 0)
492 return 1;
493
494 return 0;
495}
496
497/*
498 * AMW0 (V1) interface
499 */
500struct wmab_args {
501 u32 eax;
502 u32 ebx;
503 u32 ecx;
504 u32 edx;
505};
506
507struct wmab_ret {
508 u32 eax;
509 u32 ebx;
510 u32 ecx;
511 u32 edx;
512 u32 eex;
513};
514
515static acpi_status wmab_execute(struct wmab_args *regbuf,
516struct acpi_buffer *result)
517{
518 struct acpi_buffer input;
519 acpi_status status;
520 input.length = sizeof(struct wmab_args);
521 input.pointer = (u8 *)regbuf;
522
523 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
524
525 return status;
526}
527
528static acpi_status AMW0_get_u32(u32 *value, u32 cap,
529struct wmi_interface *iface)
530{
531 int err;
532 u8 result;
533
534 switch (cap) {
535 case ACER_CAP_MAILLED:
536 switch (quirks->mailled) {
537 default:
538 err = ec_read(0xA, &result);
539 if (err)
540 return AE_ERROR;
541 *value = (result >> 7) & 0x1;
542 return AE_OK;
543 }
544 break;
545 case ACER_CAP_WIRELESS:
546 switch (quirks->wireless) {
547 case 1:
548 err = ec_read(0x7B, &result);
549 if (err)
550 return AE_ERROR;
551 *value = result & 0x1;
552 return AE_OK;
553 case 2:
554 err = ec_read(0x71, &result);
555 if (err)
556 return AE_ERROR;
557 *value = result & 0x1;
558 return AE_OK;
559 case 3:
560 err = ec_read(0x78, &result);
561 if (err)
562 return AE_ERROR;
563 *value = result & 0x1;
564 return AE_OK;
565 default:
566 err = ec_read(0xA, &result);
567 if (err)
568 return AE_ERROR;
569 *value = (result >> 2) & 0x1;
570 return AE_OK;
571 }
572 break;
573 case ACER_CAP_BLUETOOTH:
574 switch (quirks->bluetooth) {
575 default:
576 err = ec_read(0xA, &result);
577 if (err)
578 return AE_ERROR;
579 *value = (result >> 4) & 0x1;
580 return AE_OK;
581 }
582 break;
583 case ACER_CAP_BRIGHTNESS:
584 switch (quirks->brightness) {
585 default:
586 err = ec_read(0x83, &result);
587 if (err)
588 return AE_ERROR;
589 *value = result;
590 return AE_OK;
591 }
592 break;
593 default:
594 return AE_ERROR;
595 }
596 return AE_OK;
597}
598
599static acpi_status AMW0_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
600{
601 struct wmab_args args;
602
603 args.eax = ACER_AMW0_WRITE;
604 args.ebx = value ? (1<<8) : 0;
605 args.ecx = args.edx = 0;
606
607 switch (cap) {
608 case ACER_CAP_MAILLED:
609 if (value > 1)
610 return AE_BAD_PARAMETER;
611 args.ebx |= ACER_AMW0_MAILLED_MASK;
612 break;
613 case ACER_CAP_WIRELESS:
614 if (value > 1)
615 return AE_BAD_PARAMETER;
616 args.ebx |= ACER_AMW0_WIRELESS_MASK;
617 break;
618 case ACER_CAP_BLUETOOTH:
619 if (value > 1)
620 return AE_BAD_PARAMETER;
621 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
622 break;
623 case ACER_CAP_BRIGHTNESS:
624 if (value > max_brightness)
625 return AE_BAD_PARAMETER;
626 switch (quirks->brightness) {
627 default:
628 return ec_write(0x83, value);
629 break;
630 }
631 default:
632 return AE_ERROR;
633 }
634
635 /* Actually do the set */
636 return wmab_execute(&args, NULL);
637}
638
639static acpi_status AMW0_find_mailled(void)
640{
641 struct wmab_args args;
642 struct wmab_ret ret;
643 acpi_status status = AE_OK;
644 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
645 union acpi_object *obj;
646
647 args.eax = 0x86;
648 args.ebx = args.ecx = args.edx = 0;
649
650 status = wmab_execute(&args, &out);
651 if (ACPI_FAILURE(status))
652 return status;
653
654 obj = (union acpi_object *) out.pointer;
655 if (obj && obj->type == ACPI_TYPE_BUFFER &&
656 obj->buffer.length == sizeof(struct wmab_ret)) {
657 ret = *((struct wmab_ret *) obj->buffer.pointer);
658 } else {
659 kfree(out.pointer);
660 return AE_ERROR;
661 }
662
663 if (ret.eex & 0x1)
664 interface->capability |= ACER_CAP_MAILLED;
665
666 kfree(out.pointer);
667
668 return AE_OK;
669}
670
671static acpi_status AMW0_set_capabilities(void)
672{
673 struct wmab_args args;
674 struct wmab_ret ret;
675 acpi_status status;
676 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
677 union acpi_object *obj;
678
679 /*
680 * On laptops with this strange GUID (non Acer), normal probing doesn't
681 * work.
682 */
683 if (wmi_has_guid(AMW0_GUID2)) {
684 interface->capability |= ACER_CAP_WIRELESS;
685 return AE_OK;
686 }
687
688 args.eax = ACER_AMW0_WRITE;
689 args.ecx = args.edx = 0;
690
691 args.ebx = 0xa2 << 8;
692 args.ebx |= ACER_AMW0_WIRELESS_MASK;
693
694 status = wmab_execute(&args, &out);
695 if (ACPI_FAILURE(status))
696 return status;
697
698 obj = out.pointer;
699 if (obj && obj->type == ACPI_TYPE_BUFFER &&
700 obj->buffer.length == sizeof(struct wmab_ret)) {
701 ret = *((struct wmab_ret *) obj->buffer.pointer);
702 } else {
703 status = AE_ERROR;
704 goto out;
705 }
706
707 if (ret.eax & 0x1)
708 interface->capability |= ACER_CAP_WIRELESS;
709
710 args.ebx = 2 << 8;
711 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
712
713 /*
714 * It's ok to use existing buffer for next wmab_execute call.
715 * But we need to kfree(out.pointer) if next wmab_execute fail.
716 */
717 status = wmab_execute(&args, &out);
718 if (ACPI_FAILURE(status))
719 goto out;
720
721 obj = (union acpi_object *) out.pointer;
722 if (obj && obj->type == ACPI_TYPE_BUFFER
723 && obj->buffer.length == sizeof(struct wmab_ret)) {
724 ret = *((struct wmab_ret *) obj->buffer.pointer);
725 } else {
726 status = AE_ERROR;
727 goto out;
728 }
729
730 if (ret.eax & 0x1)
731 interface->capability |= ACER_CAP_BLUETOOTH;
732
733 /*
734 * This appears to be safe to enable, since all Wistron based laptops
735 * appear to use the same EC register for brightness, even if they
736 * differ for wireless, etc
737 */
738 if (quirks->brightness >= 0)
739 interface->capability |= ACER_CAP_BRIGHTNESS;
740
741 status = AE_OK;
742out:
743 kfree(out.pointer);
744 return status;
745}
746
747static struct wmi_interface AMW0_interface = {
748 .type = ACER_AMW0,
749};
750
751static struct wmi_interface AMW0_V2_interface = {
752 .type = ACER_AMW0_V2,
753};
754
755/*
756 * New interface (The WMID interface)
757 */
758static acpi_status
759WMI_execute_u32(u32 method_id, u32 in, u32 *out)
760{
761 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
762 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
763 union acpi_object *obj;
764 u32 tmp;
765 acpi_status status;
766
767 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
768
769 if (ACPI_FAILURE(status))
770 return status;
771
772 obj = (union acpi_object *) result.pointer;
773 if (obj && obj->type == ACPI_TYPE_BUFFER &&
774 (obj->buffer.length == sizeof(u32) ||
775 obj->buffer.length == sizeof(u64))) {
776 tmp = *((u32 *) obj->buffer.pointer);
777 } else if (obj->type == ACPI_TYPE_INTEGER) {
778 tmp = (u32) obj->integer.value;
779 } else {
780 tmp = 0;
781 }
782
783 if (out)
784 *out = tmp;
785
786 kfree(result.pointer);
787
788 return status;
789}
790
791static acpi_status WMID_get_u32(u32 *value, u32 cap,
792struct wmi_interface *iface)
793{
794 acpi_status status;
795 u8 tmp;
796 u32 result, method_id = 0;
797
798 switch (cap) {
799 case ACER_CAP_WIRELESS:
800 method_id = ACER_WMID_GET_WIRELESS_METHODID;
801 break;
802 case ACER_CAP_BLUETOOTH:
803 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
804 break;
805 case ACER_CAP_BRIGHTNESS:
806 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
807 break;
808 case ACER_CAP_THREEG:
809 method_id = ACER_WMID_GET_THREEG_METHODID;
810 break;
811 case ACER_CAP_MAILLED:
812 if (quirks->mailled == 1) {
813 ec_read(0x9f, &tmp);
814 *value = tmp & 0x1;
815 return 0;
816 }
817 default:
818 return AE_ERROR;
819 }
820 status = WMI_execute_u32(method_id, 0, &result);
821
822 if (ACPI_SUCCESS(status))
823 *value = (u8)result;
824
825 return status;
826}
827
828static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
829{
830 u32 method_id = 0;
831 char param;
832
833 switch (cap) {
834 case ACER_CAP_BRIGHTNESS:
835 if (value > max_brightness)
836 return AE_BAD_PARAMETER;
837 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
838 break;
839 case ACER_CAP_WIRELESS:
840 if (value > 1)
841 return AE_BAD_PARAMETER;
842 method_id = ACER_WMID_SET_WIRELESS_METHODID;
843 break;
844 case ACER_CAP_BLUETOOTH:
845 if (value > 1)
846 return AE_BAD_PARAMETER;
847 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
848 break;
849 case ACER_CAP_THREEG:
850 if (value > 1)
851 return AE_BAD_PARAMETER;
852 method_id = ACER_WMID_SET_THREEG_METHODID;
853 break;
854 case ACER_CAP_MAILLED:
855 if (value > 1)
856 return AE_BAD_PARAMETER;
857 if (quirks->mailled == 1) {
858 param = value ? 0x92 : 0x93;
859 i8042_lock_chip();
860 i8042_command(¶m, 0x1059);
861 i8042_unlock_chip();
862 return 0;
863 }
864 break;
865 default:
866 return AE_ERROR;
867 }
868 return WMI_execute_u32(method_id, (u32)value, NULL);
869}
870
871static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
872{
873 struct hotkey_function_type_aa *type_aa;
874
875 /* We are looking for OEM-specific Type AAh */
876 if (header->type != 0xAA)
877 return;
878
879 has_type_aa = true;
880 type_aa = (struct hotkey_function_type_aa *) header;
881
882 pr_info("Function bitmap for Communication Button: 0x%x\n",
883 type_aa->commun_func_bitmap);
884
885 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
886 interface->capability |= ACER_CAP_WIRELESS;
887 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
888 interface->capability |= ACER_CAP_THREEG;
889 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
890 interface->capability |= ACER_CAP_BLUETOOTH;
891}
892
893static acpi_status WMID_set_capabilities(void)
894{
895 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
896 union acpi_object *obj;
897 acpi_status status;
898 u32 devices;
899
900 status = wmi_query_block(WMID_GUID2, 1, &out);
901 if (ACPI_FAILURE(status))
902 return status;
903
904 obj = (union acpi_object *) out.pointer;
905 if (obj && obj->type == ACPI_TYPE_BUFFER &&
906 (obj->buffer.length == sizeof(u32) ||
907 obj->buffer.length == sizeof(u64))) {
908 devices = *((u32 *) obj->buffer.pointer);
909 } else if (obj->type == ACPI_TYPE_INTEGER) {
910 devices = (u32) obj->integer.value;
911 } else {
912 kfree(out.pointer);
913 return AE_ERROR;
914 }
915
916 dmi_walk(type_aa_dmi_decode, NULL);
917 if (!has_type_aa) {
918 interface->capability |= ACER_CAP_WIRELESS;
919 if (devices & 0x40)
920 interface->capability |= ACER_CAP_THREEG;
921 if (devices & 0x10)
922 interface->capability |= ACER_CAP_BLUETOOTH;
923 }
924
925 /* WMID always provides brightness methods */
926 interface->capability |= ACER_CAP_BRIGHTNESS;
927
928 if (!(devices & 0x20))
929 max_brightness = 0x9;
930
931 kfree(out.pointer);
932 return status;
933}
934
935static struct wmi_interface wmid_interface = {
936 .type = ACER_WMID,
937};
938
939/*
940 * Generic Device (interface-independent)
941 */
942
943static acpi_status get_u32(u32 *value, u32 cap)
944{
945 acpi_status status = AE_ERROR;
946
947 switch (interface->type) {
948 case ACER_AMW0:
949 status = AMW0_get_u32(value, cap, interface);
950 break;
951 case ACER_AMW0_V2:
952 if (cap == ACER_CAP_MAILLED) {
953 status = AMW0_get_u32(value, cap, interface);
954 break;
955 }
956 case ACER_WMID:
957 status = WMID_get_u32(value, cap, interface);
958 break;
959 }
960
961 return status;
962}
963
964static acpi_status set_u32(u32 value, u32 cap)
965{
966 acpi_status status;
967
968 if (interface->capability & cap) {
969 switch (interface->type) {
970 case ACER_AMW0:
971 return AMW0_set_u32(value, cap, interface);
972 case ACER_AMW0_V2:
973 if (cap == ACER_CAP_MAILLED)
974 return AMW0_set_u32(value, cap, interface);
975
976 /*
977 * On some models, some WMID methods don't toggle
978 * properly. For those cases, we want to run the AMW0
979 * method afterwards to be certain we've really toggled
980 * the device state.
981 */
982 if (cap == ACER_CAP_WIRELESS ||
983 cap == ACER_CAP_BLUETOOTH) {
984 status = WMID_set_u32(value, cap, interface);
985 if (ACPI_FAILURE(status))
986 return status;
987
988 return AMW0_set_u32(value, cap, interface);
989 }
990 case ACER_WMID:
991 return WMID_set_u32(value, cap, interface);
992 default:
993 return AE_BAD_PARAMETER;
994 }
995 }
996 return AE_BAD_PARAMETER;
997}
998
999static void __init acer_commandline_init(void)
1000{
1001 /*
1002 * These will all fail silently if the value given is invalid, or the
1003 * capability isn't available on the given interface
1004 */
1005 if (mailled >= 0)
1006 set_u32(mailled, ACER_CAP_MAILLED);
1007 if (!has_type_aa && threeg >= 0)
1008 set_u32(threeg, ACER_CAP_THREEG);
1009 if (brightness >= 0)
1010 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1011}
1012
1013/*
1014 * LED device (Mail LED only, no other LEDs known yet)
1015 */
1016static void mail_led_set(struct led_classdev *led_cdev,
1017enum led_brightness value)
1018{
1019 set_u32(value, ACER_CAP_MAILLED);
1020}
1021
1022static struct led_classdev mail_led = {
1023 .name = "acer-wmi::mail",
1024 .brightness_set = mail_led_set,
1025};
1026
1027static int __devinit acer_led_init(struct device *dev)
1028{
1029 return led_classdev_register(dev, &mail_led);
1030}
1031
1032static void acer_led_exit(void)
1033{
1034 set_u32(LED_OFF, ACER_CAP_MAILLED);
1035 led_classdev_unregister(&mail_led);
1036}
1037
1038/*
1039 * Backlight device
1040 */
1041static struct backlight_device *acer_backlight_device;
1042
1043static int read_brightness(struct backlight_device *bd)
1044{
1045 u32 value;
1046 get_u32(&value, ACER_CAP_BRIGHTNESS);
1047 return value;
1048}
1049
1050static int update_bl_status(struct backlight_device *bd)
1051{
1052 int intensity = bd->props.brightness;
1053
1054 if (bd->props.power != FB_BLANK_UNBLANK)
1055 intensity = 0;
1056 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1057 intensity = 0;
1058
1059 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1060
1061 return 0;
1062}
1063
1064static const struct backlight_ops acer_bl_ops = {
1065 .get_brightness = read_brightness,
1066 .update_status = update_bl_status,
1067};
1068
1069static int __devinit acer_backlight_init(struct device *dev)
1070{
1071 struct backlight_properties props;
1072 struct backlight_device *bd;
1073
1074 memset(&props, 0, sizeof(struct backlight_properties));
1075 props.type = BACKLIGHT_PLATFORM;
1076 props.max_brightness = max_brightness;
1077 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1078 &props);
1079 if (IS_ERR(bd)) {
1080 pr_err("Could not register Acer backlight device\n");
1081 acer_backlight_device = NULL;
1082 return PTR_ERR(bd);
1083 }
1084
1085 acer_backlight_device = bd;
1086
1087 bd->props.power = FB_BLANK_UNBLANK;
1088 bd->props.brightness = read_brightness(bd);
1089 backlight_update_status(bd);
1090 return 0;
1091}
1092
1093static void acer_backlight_exit(void)
1094{
1095 backlight_device_unregister(acer_backlight_device);
1096}
1097
1098static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1099{
1100 struct wmid3_gds_return_value return_value;
1101 acpi_status status;
1102 union acpi_object *obj;
1103 struct wmid3_gds_input_param params = {
1104 .function_num = 0x1,
1105 .hotkey_number = 0x01,
1106 .devices = device,
1107 };
1108 struct acpi_buffer input = {
1109 sizeof(struct wmid3_gds_input_param),
1110 ¶ms
1111 };
1112 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1113
1114 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1115 if (ACPI_FAILURE(status))
1116 return status;
1117
1118 obj = output.pointer;
1119
1120 if (!obj)
1121 return AE_ERROR;
1122 else if (obj->type != ACPI_TYPE_BUFFER) {
1123 kfree(obj);
1124 return AE_ERROR;
1125 }
1126 if (obj->buffer.length != 8) {
1127 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1128 kfree(obj);
1129 return AE_ERROR;
1130 }
1131
1132 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1133 kfree(obj);
1134
1135 if (return_value.error_code || return_value.ec_return_value)
1136 pr_warn("Get Device Status failed: 0x%x - 0x%x\n",
1137 return_value.error_code,
1138 return_value.ec_return_value);
1139 else
1140 *value = !!(return_value.devices & device);
1141
1142 return status;
1143}
1144
1145static acpi_status get_device_status(u32 *value, u32 cap)
1146{
1147 if (wmi_has_guid(WMID_GUID3)) {
1148 u16 device;
1149
1150 switch (cap) {
1151 case ACER_CAP_WIRELESS:
1152 device = ACER_WMID3_GDS_WIRELESS;
1153 break;
1154 case ACER_CAP_BLUETOOTH:
1155 device = ACER_WMID3_GDS_BLUETOOTH;
1156 break;
1157 case ACER_CAP_THREEG:
1158 device = ACER_WMID3_GDS_THREEG;
1159 break;
1160 default:
1161 return AE_ERROR;
1162 }
1163 return wmid3_get_device_status(value, device);
1164
1165 } else {
1166 return get_u32(value, cap);
1167 }
1168}
1169
1170static acpi_status wmid3_set_device_status(u32 value, u16 device)
1171{
1172 struct wmid3_gds_return_value return_value;
1173 acpi_status status;
1174 union acpi_object *obj;
1175 u16 devices;
1176 struct wmid3_gds_input_param params = {
1177 .function_num = 0x1,
1178 .hotkey_number = 0x01,
1179 .devices = ACER_WMID3_GDS_WIRELESS |
1180 ACER_WMID3_GDS_THREEG |
1181 ACER_WMID3_GDS_WIMAX |
1182 ACER_WMID3_GDS_BLUETOOTH,
1183 };
1184 struct acpi_buffer input = {
1185 sizeof(struct wmid3_gds_input_param),
1186 ¶ms
1187 };
1188 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1189 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1190
1191 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1192 if (ACPI_FAILURE(status))
1193 return status;
1194
1195 obj = output.pointer;
1196
1197 if (!obj)
1198 return AE_ERROR;
1199 else if (obj->type != ACPI_TYPE_BUFFER) {
1200 kfree(obj);
1201 return AE_ERROR;
1202 }
1203 if (obj->buffer.length != 8) {
1204 pr_warning("Unknown buffer length %d\n", obj->buffer.length);
1205 kfree(obj);
1206 return AE_ERROR;
1207 }
1208
1209 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1210 kfree(obj);
1211
1212 if (return_value.error_code || return_value.ec_return_value) {
1213 pr_warning("Get Current Device Status failed: "
1214 "0x%x - 0x%x\n", return_value.error_code,
1215 return_value.ec_return_value);
1216 return status;
1217 }
1218
1219 devices = return_value.devices;
1220 params.function_num = 0x2;
1221 params.hotkey_number = 0x01;
1222 params.devices = (value) ? (devices | device) : (devices & ~device);
1223
1224 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output2);
1225 if (ACPI_FAILURE(status))
1226 return status;
1227
1228 obj = output2.pointer;
1229
1230 if (!obj)
1231 return AE_ERROR;
1232 else if (obj->type != ACPI_TYPE_BUFFER) {
1233 kfree(obj);
1234 return AE_ERROR;
1235 }
1236 if (obj->buffer.length != 4) {
1237 pr_warning("Unknown buffer length %d\n", obj->buffer.length);
1238 kfree(obj);
1239 return AE_ERROR;
1240 }
1241
1242 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1243 kfree(obj);
1244
1245 if (return_value.error_code || return_value.ec_return_value)
1246 pr_warning("Set Device Status failed: "
1247 "0x%x - 0x%x\n", return_value.error_code,
1248 return_value.ec_return_value);
1249
1250 return status;
1251}
1252
1253static acpi_status set_device_status(u32 value, u32 cap)
1254{
1255 if (wmi_has_guid(WMID_GUID3)) {
1256 u16 device;
1257
1258 switch (cap) {
1259 case ACER_CAP_WIRELESS:
1260 device = ACER_WMID3_GDS_WIRELESS;
1261 break;
1262 case ACER_CAP_BLUETOOTH:
1263 device = ACER_WMID3_GDS_BLUETOOTH;
1264 break;
1265 case ACER_CAP_THREEG:
1266 device = ACER_WMID3_GDS_THREEG;
1267 break;
1268 default:
1269 return AE_ERROR;
1270 }
1271 return wmid3_set_device_status(value, device);
1272
1273 } else {
1274 return set_u32(value, cap);
1275 }
1276}
1277
1278/*
1279 * Rfkill devices
1280 */
1281static void acer_rfkill_update(struct work_struct *ignored);
1282static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1283static void acer_rfkill_update(struct work_struct *ignored)
1284{
1285 u32 state;
1286 acpi_status status;
1287
1288 status = get_u32(&state, ACER_CAP_WIRELESS);
1289 if (ACPI_SUCCESS(status)) {
1290 if (quirks->wireless == 3) {
1291 rfkill_set_hw_state(wireless_rfkill, !state);
1292 } else {
1293 rfkill_set_sw_state(wireless_rfkill, !state);
1294 }
1295 }
1296
1297 if (has_cap(ACER_CAP_BLUETOOTH)) {
1298 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1299 if (ACPI_SUCCESS(status))
1300 rfkill_set_sw_state(bluetooth_rfkill, !state);
1301 }
1302
1303 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1304 status = wmid3_get_device_status(&state,
1305 ACER_WMID3_GDS_THREEG);
1306 if (ACPI_SUCCESS(status))
1307 rfkill_set_sw_state(threeg_rfkill, !state);
1308 }
1309
1310 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1311}
1312
1313static int acer_rfkill_set(void *data, bool blocked)
1314{
1315 acpi_status status;
1316 u32 cap = (unsigned long)data;
1317
1318 if (rfkill_inited) {
1319 status = set_device_status(!blocked, cap);
1320 if (ACPI_FAILURE(status))
1321 return -ENODEV;
1322 }
1323
1324 return 0;
1325}
1326
1327static const struct rfkill_ops acer_rfkill_ops = {
1328 .set_block = acer_rfkill_set,
1329};
1330
1331static struct rfkill *acer_rfkill_register(struct device *dev,
1332 enum rfkill_type type,
1333 char *name, u32 cap)
1334{
1335 int err;
1336 struct rfkill *rfkill_dev;
1337 u32 state;
1338 acpi_status status;
1339
1340 rfkill_dev = rfkill_alloc(name, dev, type,
1341 &acer_rfkill_ops,
1342 (void *)(unsigned long)cap);
1343 if (!rfkill_dev)
1344 return ERR_PTR(-ENOMEM);
1345
1346 status = get_device_status(&state, cap);
1347
1348 err = rfkill_register(rfkill_dev);
1349 if (err) {
1350 rfkill_destroy(rfkill_dev);
1351 return ERR_PTR(err);
1352 }
1353
1354 if (ACPI_SUCCESS(status))
1355 rfkill_set_sw_state(rfkill_dev, !state);
1356
1357 return rfkill_dev;
1358}
1359
1360static int acer_rfkill_init(struct device *dev)
1361{
1362 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1363 "acer-wireless", ACER_CAP_WIRELESS);
1364 if (IS_ERR(wireless_rfkill))
1365 return PTR_ERR(wireless_rfkill);
1366
1367 if (has_cap(ACER_CAP_BLUETOOTH)) {
1368 bluetooth_rfkill = acer_rfkill_register(dev,
1369 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1370 ACER_CAP_BLUETOOTH);
1371 if (IS_ERR(bluetooth_rfkill)) {
1372 rfkill_unregister(wireless_rfkill);
1373 rfkill_destroy(wireless_rfkill);
1374 return PTR_ERR(bluetooth_rfkill);
1375 }
1376 }
1377
1378 if (has_cap(ACER_CAP_THREEG)) {
1379 threeg_rfkill = acer_rfkill_register(dev,
1380 RFKILL_TYPE_WWAN, "acer-threeg",
1381 ACER_CAP_THREEG);
1382 if (IS_ERR(threeg_rfkill)) {
1383 rfkill_unregister(wireless_rfkill);
1384 rfkill_destroy(wireless_rfkill);
1385 rfkill_unregister(bluetooth_rfkill);
1386 rfkill_destroy(bluetooth_rfkill);
1387 return PTR_ERR(threeg_rfkill);
1388 }
1389 }
1390
1391 rfkill_inited = true;
1392
1393 if (ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID))
1394 schedule_delayed_work(&acer_rfkill_work,
1395 round_jiffies_relative(HZ));
1396
1397 return 0;
1398}
1399
1400static void acer_rfkill_exit(void)
1401{
1402 if (ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID))
1403 cancel_delayed_work_sync(&acer_rfkill_work);
1404
1405 rfkill_unregister(wireless_rfkill);
1406 rfkill_destroy(wireless_rfkill);
1407
1408 if (has_cap(ACER_CAP_BLUETOOTH)) {
1409 rfkill_unregister(bluetooth_rfkill);
1410 rfkill_destroy(bluetooth_rfkill);
1411 }
1412
1413 if (has_cap(ACER_CAP_THREEG)) {
1414 rfkill_unregister(threeg_rfkill);
1415 rfkill_destroy(threeg_rfkill);
1416 }
1417 return;
1418}
1419
1420/*
1421 * sysfs interface
1422 */
1423static ssize_t show_bool_threeg(struct device *dev,
1424 struct device_attribute *attr, char *buf)
1425{
1426 u32 result; \
1427 acpi_status status;
1428
1429 pr_info("This threeg sysfs will be removed in 2012"
1430 " - used by: %s\n", current->comm);
1431 if (wmi_has_guid(WMID_GUID3))
1432 status = wmid3_get_device_status(&result,
1433 ACER_WMID3_GDS_THREEG);
1434 else
1435 status = get_u32(&result, ACER_CAP_THREEG);
1436 if (ACPI_SUCCESS(status))
1437 return sprintf(buf, "%u\n", result);
1438 return sprintf(buf, "Read error\n");
1439}
1440
1441static ssize_t set_bool_threeg(struct device *dev,
1442 struct device_attribute *attr, const char *buf, size_t count)
1443{
1444 u32 tmp = simple_strtoul(buf, NULL, 10);
1445 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1446 pr_info("This threeg sysfs will be removed in 2012"
1447 " - used by: %s\n", current->comm);
1448 if (ACPI_FAILURE(status))
1449 return -EINVAL;
1450 return count;
1451}
1452static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1453 set_bool_threeg);
1454
1455static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1456 char *buf)
1457{
1458 pr_info("This interface sysfs will be removed in 2012"
1459 " - used by: %s\n", current->comm);
1460 switch (interface->type) {
1461 case ACER_AMW0:
1462 return sprintf(buf, "AMW0\n");
1463 case ACER_AMW0_V2:
1464 return sprintf(buf, "AMW0 v2\n");
1465 case ACER_WMID:
1466 return sprintf(buf, "WMID\n");
1467 default:
1468 return sprintf(buf, "Error!\n");
1469 }
1470}
1471
1472static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1473
1474static void acer_wmi_notify(u32 value, void *context)
1475{
1476 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1477 union acpi_object *obj;
1478 struct event_return_value return_value;
1479 acpi_status status;
1480 u16 device_state;
1481 const struct key_entry *key;
1482
1483 status = wmi_get_event_data(value, &response);
1484 if (status != AE_OK) {
1485 pr_warn("bad event status 0x%x\n", status);
1486 return;
1487 }
1488
1489 obj = (union acpi_object *)response.pointer;
1490
1491 if (!obj)
1492 return;
1493 if (obj->type != ACPI_TYPE_BUFFER) {
1494 pr_warn("Unknown response received %d\n", obj->type);
1495 kfree(obj);
1496 return;
1497 }
1498 if (obj->buffer.length != 8) {
1499 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1500 kfree(obj);
1501 return;
1502 }
1503
1504 return_value = *((struct event_return_value *)obj->buffer.pointer);
1505 kfree(obj);
1506
1507 switch (return_value.function) {
1508 case WMID_HOTKEY_EVENT:
1509 device_state = return_value.device_state;
1510 pr_debug("device state: 0x%x\n", device_state);
1511
1512 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1513 return_value.key_num);
1514 if (!key) {
1515 pr_warn("Unknown key number - 0x%x\n",
1516 return_value.key_num);
1517 } else {
1518 switch (key->keycode) {
1519 case KEY_WLAN:
1520 case KEY_BLUETOOTH:
1521 if (has_cap(ACER_CAP_WIRELESS))
1522 rfkill_set_sw_state(wireless_rfkill,
1523 !(device_state & ACER_WMID3_GDS_WIRELESS));
1524 if (has_cap(ACER_CAP_THREEG))
1525 rfkill_set_sw_state(threeg_rfkill,
1526 !(device_state & ACER_WMID3_GDS_THREEG));
1527 if (has_cap(ACER_CAP_BLUETOOTH))
1528 rfkill_set_sw_state(bluetooth_rfkill,
1529 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1530 break;
1531 }
1532 sparse_keymap_report_entry(acer_wmi_input_dev, key,
1533 1, true);
1534 }
1535 break;
1536 default:
1537 pr_warn("Unknown function number - %d - %d\n",
1538 return_value.function, return_value.key_num);
1539 break;
1540 }
1541}
1542
1543static acpi_status
1544wmid3_set_lm_mode(struct lm_input_params *params,
1545 struct lm_return_value *return_value)
1546{
1547 acpi_status status;
1548 union acpi_object *obj;
1549
1550 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1551 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1552
1553 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1554 if (ACPI_FAILURE(status))
1555 return status;
1556
1557 obj = output.pointer;
1558
1559 if (!obj)
1560 return AE_ERROR;
1561 else if (obj->type != ACPI_TYPE_BUFFER) {
1562 kfree(obj);
1563 return AE_ERROR;
1564 }
1565 if (obj->buffer.length != 4) {
1566 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1567 kfree(obj);
1568 return AE_ERROR;
1569 }
1570
1571 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1572 kfree(obj);
1573
1574 return status;
1575}
1576
1577static int acer_wmi_enable_ec_raw(void)
1578{
1579 struct lm_return_value return_value;
1580 acpi_status status;
1581 struct lm_input_params params = {
1582 .function_num = 0x1,
1583 .commun_devices = 0xFFFF,
1584 .devices = 0xFFFF,
1585 .lm_status = 0x00, /* Launch Manager Deactive */
1586 };
1587
1588 status = wmid3_set_lm_mode(¶ms, &return_value);
1589
1590 if (return_value.error_code || return_value.ec_return_value)
1591 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1592 return_value.error_code,
1593 return_value.ec_return_value);
1594 else
1595 pr_info("Enabled EC raw mode\n");
1596
1597 return status;
1598}
1599
1600static int acer_wmi_enable_lm(void)
1601{
1602 struct lm_return_value return_value;
1603 acpi_status status;
1604 struct lm_input_params params = {
1605 .function_num = 0x1,
1606 .commun_devices = 0xFFFF,
1607 .devices = 0xFFFF,
1608 .lm_status = 0x01, /* Launch Manager Active */
1609 };
1610
1611 status = wmid3_set_lm_mode(¶ms, &return_value);
1612
1613 if (return_value.error_code || return_value.ec_return_value)
1614 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1615 return_value.error_code,
1616 return_value.ec_return_value);
1617
1618 return status;
1619}
1620
1621static int __init acer_wmi_input_setup(void)
1622{
1623 acpi_status status;
1624 int err;
1625
1626 acer_wmi_input_dev = input_allocate_device();
1627 if (!acer_wmi_input_dev)
1628 return -ENOMEM;
1629
1630 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1631 acer_wmi_input_dev->phys = "wmi/input0";
1632 acer_wmi_input_dev->id.bustype = BUS_HOST;
1633
1634 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1635 if (err)
1636 goto err_free_dev;
1637
1638 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1639 acer_wmi_notify, NULL);
1640 if (ACPI_FAILURE(status)) {
1641 err = -EIO;
1642 goto err_free_keymap;
1643 }
1644
1645 err = input_register_device(acer_wmi_input_dev);
1646 if (err)
1647 goto err_uninstall_notifier;
1648
1649 return 0;
1650
1651err_uninstall_notifier:
1652 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1653err_free_keymap:
1654 sparse_keymap_free(acer_wmi_input_dev);
1655err_free_dev:
1656 input_free_device(acer_wmi_input_dev);
1657 return err;
1658}
1659
1660static void acer_wmi_input_destroy(void)
1661{
1662 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1663 sparse_keymap_free(acer_wmi_input_dev);
1664 input_unregister_device(acer_wmi_input_dev);
1665}
1666
1667/*
1668 * debugfs functions
1669 */
1670static u32 get_wmid_devices(void)
1671{
1672 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1673 union acpi_object *obj;
1674 acpi_status status;
1675 u32 devices = 0;
1676
1677 status = wmi_query_block(WMID_GUID2, 1, &out);
1678 if (ACPI_FAILURE(status))
1679 return 0;
1680
1681 obj = (union acpi_object *) out.pointer;
1682 if (obj && obj->type == ACPI_TYPE_BUFFER &&
1683 (obj->buffer.length == sizeof(u32) ||
1684 obj->buffer.length == sizeof(u64))) {
1685 devices = *((u32 *) obj->buffer.pointer);
1686 } else if (obj->type == ACPI_TYPE_INTEGER) {
1687 devices = (u32) obj->integer.value;
1688 }
1689
1690 kfree(out.pointer);
1691 return devices;
1692}
1693
1694/*
1695 * Platform device
1696 */
1697static int __devinit acer_platform_probe(struct platform_device *device)
1698{
1699 int err;
1700
1701 if (has_cap(ACER_CAP_MAILLED)) {
1702 err = acer_led_init(&device->dev);
1703 if (err)
1704 goto error_mailled;
1705 }
1706
1707 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1708 err = acer_backlight_init(&device->dev);
1709 if (err)
1710 goto error_brightness;
1711 }
1712
1713 err = acer_rfkill_init(&device->dev);
1714 if (err)
1715 goto error_rfkill;
1716
1717 return err;
1718
1719error_rfkill:
1720 if (has_cap(ACER_CAP_BRIGHTNESS))
1721 acer_backlight_exit();
1722error_brightness:
1723 if (has_cap(ACER_CAP_MAILLED))
1724 acer_led_exit();
1725error_mailled:
1726 return err;
1727}
1728
1729static int acer_platform_remove(struct platform_device *device)
1730{
1731 if (has_cap(ACER_CAP_MAILLED))
1732 acer_led_exit();
1733 if (has_cap(ACER_CAP_BRIGHTNESS))
1734 acer_backlight_exit();
1735
1736 acer_rfkill_exit();
1737 return 0;
1738}
1739
1740static int acer_platform_suspend(struct platform_device *dev,
1741pm_message_t state)
1742{
1743 u32 value;
1744 struct acer_data *data = &interface->data;
1745
1746 if (!data)
1747 return -ENOMEM;
1748
1749 if (has_cap(ACER_CAP_MAILLED)) {
1750 get_u32(&value, ACER_CAP_MAILLED);
1751 set_u32(LED_OFF, ACER_CAP_MAILLED);
1752 data->mailled = value;
1753 }
1754
1755 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1756 get_u32(&value, ACER_CAP_BRIGHTNESS);
1757 data->brightness = value;
1758 }
1759
1760 return 0;
1761}
1762
1763static int acer_platform_resume(struct platform_device *device)
1764{
1765 struct acer_data *data = &interface->data;
1766
1767 if (!data)
1768 return -ENOMEM;
1769
1770 if (has_cap(ACER_CAP_MAILLED))
1771 set_u32(data->mailled, ACER_CAP_MAILLED);
1772
1773 if (has_cap(ACER_CAP_BRIGHTNESS))
1774 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
1775
1776 return 0;
1777}
1778
1779static void acer_platform_shutdown(struct platform_device *device)
1780{
1781 struct acer_data *data = &interface->data;
1782
1783 if (!data)
1784 return;
1785
1786 if (has_cap(ACER_CAP_MAILLED))
1787 set_u32(LED_OFF, ACER_CAP_MAILLED);
1788}
1789
1790static struct platform_driver acer_platform_driver = {
1791 .driver = {
1792 .name = "acer-wmi",
1793 .owner = THIS_MODULE,
1794 },
1795 .probe = acer_platform_probe,
1796 .remove = acer_platform_remove,
1797 .suspend = acer_platform_suspend,
1798 .resume = acer_platform_resume,
1799 .shutdown = acer_platform_shutdown,
1800};
1801
1802static struct platform_device *acer_platform_device;
1803
1804static int remove_sysfs(struct platform_device *device)
1805{
1806 if (has_cap(ACER_CAP_THREEG))
1807 device_remove_file(&device->dev, &dev_attr_threeg);
1808
1809 device_remove_file(&device->dev, &dev_attr_interface);
1810
1811 return 0;
1812}
1813
1814static int create_sysfs(void)
1815{
1816 int retval = -ENOMEM;
1817
1818 if (has_cap(ACER_CAP_THREEG)) {
1819 retval = device_create_file(&acer_platform_device->dev,
1820 &dev_attr_threeg);
1821 if (retval)
1822 goto error_sysfs;
1823 }
1824
1825 retval = device_create_file(&acer_platform_device->dev,
1826 &dev_attr_interface);
1827 if (retval)
1828 goto error_sysfs;
1829
1830 return 0;
1831
1832error_sysfs:
1833 remove_sysfs(acer_platform_device);
1834 return retval;
1835}
1836
1837static void remove_debugfs(void)
1838{
1839 debugfs_remove(interface->debug.devices);
1840 debugfs_remove(interface->debug.root);
1841}
1842
1843static int create_debugfs(void)
1844{
1845 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
1846 if (!interface->debug.root) {
1847 pr_err("Failed to create debugfs directory");
1848 return -ENOMEM;
1849 }
1850
1851 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
1852 interface->debug.root,
1853 &interface->debug.wmid_devices);
1854 if (!interface->debug.devices)
1855 goto error_debugfs;
1856
1857 return 0;
1858
1859error_debugfs:
1860 remove_debugfs();
1861 return -ENOMEM;
1862}
1863
1864static int __init acer_wmi_init(void)
1865{
1866 int err;
1867
1868 pr_info("Acer Laptop ACPI-WMI Extras\n");
1869
1870 if (dmi_check_system(acer_blacklist)) {
1871 pr_info("Blacklisted hardware detected - not loading\n");
1872 return -ENODEV;
1873 }
1874
1875 find_quirks();
1876
1877 /*
1878 * Detect which ACPI-WMI interface we're using.
1879 */
1880 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1881 interface = &AMW0_V2_interface;
1882
1883 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1884 interface = &wmid_interface;
1885
1886 if (wmi_has_guid(WMID_GUID2) && interface) {
1887 if (ACPI_FAILURE(WMID_set_capabilities())) {
1888 pr_err("Unable to detect available WMID devices\n");
1889 return -ENODEV;
1890 }
1891 } else if (!wmi_has_guid(WMID_GUID2) && interface) {
1892 pr_err("No WMID device detection method found\n");
1893 return -ENODEV;
1894 }
1895
1896 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
1897 interface = &AMW0_interface;
1898
1899 if (ACPI_FAILURE(AMW0_set_capabilities())) {
1900 pr_err("Unable to detect available AMW0 devices\n");
1901 return -ENODEV;
1902 }
1903 }
1904
1905 if (wmi_has_guid(AMW0_GUID1))
1906 AMW0_find_mailled();
1907
1908 if (!interface) {
1909 pr_err("No or unsupported WMI interface, unable to load\n");
1910 return -ENODEV;
1911 }
1912
1913 set_quirks();
1914
1915 if (acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
1916 interface->capability &= ~ACER_CAP_BRIGHTNESS;
1917 pr_info("Brightness must be controlled by "
1918 "generic video driver\n");
1919 }
1920
1921 if (wmi_has_guid(WMID_GUID3)) {
1922 if (ec_raw_mode) {
1923 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
1924 pr_err("Cannot enable EC raw mode\n");
1925 return -ENODEV;
1926 }
1927 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
1928 pr_err("Cannot enable Launch Manager mode\n");
1929 return -ENODEV;
1930 }
1931 } else if (ec_raw_mode) {
1932 pr_info("No WMID EC raw mode enable method\n");
1933 }
1934
1935 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
1936 err = acer_wmi_input_setup();
1937 if (err)
1938 return err;
1939 }
1940
1941 err = platform_driver_register(&acer_platform_driver);
1942 if (err) {
1943 pr_err("Unable to register platform driver.\n");
1944 goto error_platform_register;
1945 }
1946
1947 acer_platform_device = platform_device_alloc("acer-wmi", -1);
1948 if (!acer_platform_device) {
1949 err = -ENOMEM;
1950 goto error_device_alloc;
1951 }
1952
1953 err = platform_device_add(acer_platform_device);
1954 if (err)
1955 goto error_device_add;
1956
1957 err = create_sysfs();
1958 if (err)
1959 goto error_create_sys;
1960
1961 if (wmi_has_guid(WMID_GUID2)) {
1962 interface->debug.wmid_devices = get_wmid_devices();
1963 err = create_debugfs();
1964 if (err)
1965 goto error_create_debugfs;
1966 }
1967
1968 /* Override any initial settings with values from the commandline */
1969 acer_commandline_init();
1970
1971 return 0;
1972
1973error_create_debugfs:
1974 remove_sysfs(acer_platform_device);
1975error_create_sys:
1976 platform_device_del(acer_platform_device);
1977error_device_add:
1978 platform_device_put(acer_platform_device);
1979error_device_alloc:
1980 platform_driver_unregister(&acer_platform_driver);
1981error_platform_register:
1982 if (wmi_has_guid(ACERWMID_EVENT_GUID))
1983 acer_wmi_input_destroy();
1984
1985 return err;
1986}
1987
1988static void __exit acer_wmi_exit(void)
1989{
1990 if (wmi_has_guid(ACERWMID_EVENT_GUID))
1991 acer_wmi_input_destroy();
1992
1993 remove_sysfs(acer_platform_device);
1994 remove_debugfs();
1995 platform_device_unregister(acer_platform_device);
1996 platform_driver_unregister(&acer_platform_driver);
1997
1998 pr_info("Acer Laptop WMI Extras unloaded\n");
1999 return;
2000}
2001
2002module_init(acer_wmi_init);
2003module_exit(acer_wmi_exit);
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/platform_profile.h>
24#include <linux/acpi.h>
25#include <linux/i8042.h>
26#include <linux/rfkill.h>
27#include <linux/workqueue.h>
28#include <linux/debugfs.h>
29#include <linux/slab.h>
30#include <linux/input.h>
31#include <linux/input/sparse-keymap.h>
32#include <acpi/video.h>
33#include <linux/hwmon.h>
34#include <linux/bitfield.h>
35
36MODULE_AUTHOR("Carlos Corbacho");
37MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
38MODULE_LICENSE("GPL");
39
40/*
41 * Magic Number
42 * Meaning is unknown - this number is required for writing to ACPI for AMW0
43 * (it's also used in acerhk when directly accessing the BIOS)
44 */
45#define ACER_AMW0_WRITE 0x9610
46
47/*
48 * Bit masks for the AMW0 interface
49 */
50#define ACER_AMW0_WIRELESS_MASK 0x35
51#define ACER_AMW0_BLUETOOTH_MASK 0x34
52#define ACER_AMW0_MAILLED_MASK 0x31
53
54/*
55 * Method IDs for WMID interface
56 */
57#define ACER_WMID_GET_WIRELESS_METHODID 1
58#define ACER_WMID_GET_BLUETOOTH_METHODID 2
59#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
60#define ACER_WMID_SET_WIRELESS_METHODID 4
61#define ACER_WMID_SET_BLUETOOTH_METHODID 5
62#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
63#define ACER_WMID_GET_THREEG_METHODID 10
64#define ACER_WMID_SET_THREEG_METHODID 11
65
66#define ACER_WMID_SET_GAMING_LED_METHODID 2
67#define ACER_WMID_GET_GAMING_LED_METHODID 4
68#define ACER_WMID_GET_GAMING_SYS_INFO_METHODID 5
69#define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
70#define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
71
72#define ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET 0x54
73
74#define ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK GENMASK(20, 8)
75
76/*
77 * Acer ACPI method GUIDs
78 */
79#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
80#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
81#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
82#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
83#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
84#define WMID_GUID4 "7A4DDFE7-5B5D-40B4-8595-4408E0CC7F56"
85
86/*
87 * Acer ACPI event GUIDs
88 */
89#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
90
91MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
92MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
93MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
94
95enum acer_wmi_event_ids {
96 WMID_HOTKEY_EVENT = 0x1,
97 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
98 WMID_GAMING_TURBO_KEY_EVENT = 0x7,
99};
100
101enum acer_wmi_predator_v4_sys_info_command {
102 ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS = 0x02,
103 ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED = 0x0201,
104 ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED = 0x0601,
105};
106
107static const struct key_entry acer_wmi_keymap[] __initconst = {
108 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
109 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
110 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
111 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
112 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
113 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
114 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
115 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
116 {KE_KEY, 0x27, {KEY_HELP} },
117 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
118 {KE_IGNORE, 0x41, {KEY_MUTE} },
119 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
120 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
121 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
122 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
123 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
124 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
125 {KE_IGNORE, 0x45, {KEY_STOP} },
126 {KE_IGNORE, 0x50, {KEY_STOP} },
127 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
128 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
129 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
130 /*
131 * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
132 * with the "Video Bus" input device events. But sometimes it is not
133 * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
134 * udev/hwdb can override it on systems where it is not a dup.
135 */
136 {KE_KEY, 0x61, {KEY_UNKNOWN} },
137 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
138 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
139 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
140 {KE_IGNORE, 0x81, {KEY_SLEEP} },
141 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
142 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
143 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
144 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
145 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
146 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
147 {KE_KEY, 0x86, {KEY_WLAN} },
148 {KE_KEY, 0x87, {KEY_POWER} },
149 {KE_END, 0}
150};
151
152static struct input_dev *acer_wmi_input_dev;
153static struct input_dev *acer_wmi_accel_dev;
154
155struct event_return_value {
156 u8 function;
157 u8 key_num;
158 u16 device_state;
159 u16 reserved1;
160 u8 kbd_dock_state;
161 u8 reserved2;
162} __packed;
163
164/*
165 * GUID3 Get Device Status device flags
166 */
167#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
168#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
169#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
170#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
171#define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
172
173#define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
174
175/* Hotkey Customized Setting and Acer Application Status.
176 * Set Device Default Value and Report Acer Application Status.
177 * When Acer Application starts, it will run this method to inform
178 * BIOS/EC that Acer Application is on.
179 * App Status
180 * Bit[0]: Launch Manager Status
181 * Bit[1]: ePM Status
182 * Bit[2]: Device Control Status
183 * Bit[3]: Acer Power Button Utility Status
184 * Bit[4]: RF Button Status
185 * Bit[5]: ODD PM Status
186 * Bit[6]: Device Default Value Control
187 * Bit[7]: Hall Sensor Application Status
188 */
189struct func_input_params {
190 u8 function_num; /* Function Number */
191 u16 commun_devices; /* Communication type devices default status */
192 u16 devices; /* Other type devices default status */
193 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
194 u8 app_mask; /* Bit mask to app_status */
195 u8 reserved;
196} __packed;
197
198struct func_return_value {
199 u8 error_code; /* Error Code */
200 u8 ec_return_value; /* EC Return Value */
201 u16 reserved;
202} __packed;
203
204struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
205 u8 function_num; /* Function Number */
206 u8 hotkey_number; /* Hotkey Number */
207 u16 devices; /* Set Device */
208 u8 volume_value; /* Volume Value */
209} __packed;
210
211struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
212 u8 function_num; /* Function Number */
213 u8 hotkey_number; /* Hotkey Number */
214 u16 devices; /* Get Device */
215} __packed;
216
217struct wmid3_gds_return_value { /* Get Device Status return value*/
218 u8 error_code; /* Error Code */
219 u8 ec_return_value; /* EC Return Value */
220 u16 devices; /* Current Device Status */
221 u32 reserved;
222} __packed;
223
224struct hotkey_function_type_aa {
225 u8 type;
226 u8 length;
227 u16 handle;
228 u16 commun_func_bitmap;
229 u16 application_func_bitmap;
230 u16 media_func_bitmap;
231 u16 display_func_bitmap;
232 u16 others_func_bitmap;
233 u8 commun_fn_key_number;
234} __packed;
235
236/*
237 * Interface capability flags
238 */
239#define ACER_CAP_MAILLED BIT(0)
240#define ACER_CAP_WIRELESS BIT(1)
241#define ACER_CAP_BLUETOOTH BIT(2)
242#define ACER_CAP_BRIGHTNESS BIT(3)
243#define ACER_CAP_THREEG BIT(4)
244#define ACER_CAP_SET_FUNCTION_MODE BIT(5)
245#define ACER_CAP_KBD_DOCK BIT(6)
246#define ACER_CAP_TURBO_OC BIT(7)
247#define ACER_CAP_TURBO_LED BIT(8)
248#define ACER_CAP_TURBO_FAN BIT(9)
249#define ACER_CAP_PLATFORM_PROFILE BIT(10)
250#define ACER_CAP_FAN_SPEED_READ BIT(11)
251
252/*
253 * Interface type flags
254 */
255enum interface_flags {
256 ACER_AMW0,
257 ACER_AMW0_V2,
258 ACER_WMID,
259 ACER_WMID_v2,
260};
261
262#define ACER_DEFAULT_WIRELESS 0
263#define ACER_DEFAULT_BLUETOOTH 0
264#define ACER_DEFAULT_MAILLED 0
265#define ACER_DEFAULT_THREEG 0
266
267static int max_brightness = 0xF;
268
269static int mailled = -1;
270static int brightness = -1;
271static int threeg = -1;
272static int force_series;
273static int force_caps = -1;
274static bool ec_raw_mode;
275static bool has_type_aa;
276static u16 commun_func_bitmap;
277static u8 commun_fn_key_number;
278static bool cycle_gaming_thermal_profile = true;
279
280module_param(mailled, int, 0444);
281module_param(brightness, int, 0444);
282module_param(threeg, int, 0444);
283module_param(force_series, int, 0444);
284module_param(force_caps, int, 0444);
285module_param(ec_raw_mode, bool, 0444);
286module_param(cycle_gaming_thermal_profile, bool, 0644);
287MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
288MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
289MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
290MODULE_PARM_DESC(force_series, "Force a different laptop series");
291MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
292MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
293MODULE_PARM_DESC(cycle_gaming_thermal_profile,
294 "Set thermal mode key in cycle mode. Disabling it sets the mode key in turbo toggle mode");
295
296struct acer_data {
297 int mailled;
298 int threeg;
299 int brightness;
300};
301
302struct acer_debug {
303 struct dentry *root;
304 u32 wmid_devices;
305};
306
307static struct rfkill *wireless_rfkill;
308static struct rfkill *bluetooth_rfkill;
309static struct rfkill *threeg_rfkill;
310static bool rfkill_inited;
311
312/* Each low-level interface must define at least some of the following */
313struct wmi_interface {
314 /* The WMI device type */
315 u32 type;
316
317 /* The capabilities this interface provides */
318 u32 capability;
319
320 /* Private data for the current interface */
321 struct acer_data data;
322
323 /* debugfs entries associated with this interface */
324 struct acer_debug debug;
325};
326
327/* The static interface pointer, points to the currently detected interface */
328static struct wmi_interface *interface;
329
330/*
331 * Embedded Controller quirks
332 * Some laptops require us to directly access the EC to either enable or query
333 * features that are not available through WMI.
334 */
335
336struct quirk_entry {
337 u8 wireless;
338 u8 mailled;
339 s8 brightness;
340 u8 bluetooth;
341 u8 turbo;
342 u8 cpu_fans;
343 u8 gpu_fans;
344 u8 predator_v4;
345};
346
347static struct quirk_entry *quirks;
348
349static void __init set_quirks(void)
350{
351 if (quirks->mailled)
352 interface->capability |= ACER_CAP_MAILLED;
353
354 if (quirks->brightness)
355 interface->capability |= ACER_CAP_BRIGHTNESS;
356
357 if (quirks->turbo)
358 interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
359 | ACER_CAP_TURBO_FAN;
360
361 if (quirks->predator_v4)
362 interface->capability |= ACER_CAP_PLATFORM_PROFILE |
363 ACER_CAP_FAN_SPEED_READ;
364}
365
366static int __init dmi_matched(const struct dmi_system_id *dmi)
367{
368 quirks = dmi->driver_data;
369 return 1;
370}
371
372static int __init set_force_caps(const struct dmi_system_id *dmi)
373{
374 if (force_caps == -1) {
375 force_caps = (uintptr_t)dmi->driver_data;
376 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
377 }
378 return 1;
379}
380
381static struct quirk_entry quirk_unknown = {
382};
383
384static struct quirk_entry quirk_acer_aspire_1520 = {
385 .brightness = -1,
386};
387
388static struct quirk_entry quirk_acer_travelmate_2490 = {
389 .mailled = 1,
390};
391
392static struct quirk_entry quirk_acer_predator_ph315_53 = {
393 .turbo = 1,
394 .cpu_fans = 1,
395 .gpu_fans = 1,
396};
397
398static struct quirk_entry quirk_acer_predator_v4 = {
399 .predator_v4 = 1,
400};
401
402/* This AMW0 laptop has no bluetooth */
403static struct quirk_entry quirk_medion_md_98300 = {
404 .wireless = 1,
405};
406
407static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
408 .wireless = 2,
409};
410
411static struct quirk_entry quirk_lenovo_ideapad_s205 = {
412 .wireless = 3,
413};
414
415/* The Aspire One has a dummy ACPI-WMI interface - disable it */
416static const struct dmi_system_id acer_blacklist[] __initconst = {
417 {
418 .ident = "Acer Aspire One (SSD)",
419 .matches = {
420 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
421 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
422 },
423 },
424 {
425 .ident = "Acer Aspire One (HDD)",
426 .matches = {
427 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
428 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
429 },
430 },
431 {}
432};
433
434static const struct dmi_system_id amw0_whitelist[] __initconst = {
435 {
436 .ident = "Acer",
437 .matches = {
438 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
439 },
440 },
441 {
442 .ident = "Gateway",
443 .matches = {
444 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
445 },
446 },
447 {
448 .ident = "Packard Bell",
449 .matches = {
450 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
451 },
452 },
453 {}
454};
455
456/*
457 * This quirk table is only for Acer/Gateway/Packard Bell family
458 * that those machines are supported by acer-wmi driver.
459 */
460static const struct dmi_system_id acer_quirks[] __initconst = {
461 {
462 .callback = dmi_matched,
463 .ident = "Acer Aspire 1360",
464 .matches = {
465 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
466 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
467 },
468 .driver_data = &quirk_acer_aspire_1520,
469 },
470 {
471 .callback = dmi_matched,
472 .ident = "Acer Aspire 1520",
473 .matches = {
474 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
475 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
476 },
477 .driver_data = &quirk_acer_aspire_1520,
478 },
479 {
480 .callback = dmi_matched,
481 .ident = "Acer Aspire 3100",
482 .matches = {
483 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
484 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
485 },
486 .driver_data = &quirk_acer_travelmate_2490,
487 },
488 {
489 .callback = dmi_matched,
490 .ident = "Acer Aspire 3610",
491 .matches = {
492 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
493 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
494 },
495 .driver_data = &quirk_acer_travelmate_2490,
496 },
497 {
498 .callback = dmi_matched,
499 .ident = "Acer Aspire 5100",
500 .matches = {
501 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
502 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
503 },
504 .driver_data = &quirk_acer_travelmate_2490,
505 },
506 {
507 .callback = dmi_matched,
508 .ident = "Acer Aspire 5610",
509 .matches = {
510 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
511 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
512 },
513 .driver_data = &quirk_acer_travelmate_2490,
514 },
515 {
516 .callback = dmi_matched,
517 .ident = "Acer Aspire 5630",
518 .matches = {
519 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
520 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
521 },
522 .driver_data = &quirk_acer_travelmate_2490,
523 },
524 {
525 .callback = dmi_matched,
526 .ident = "Acer Aspire 5650",
527 .matches = {
528 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
529 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
530 },
531 .driver_data = &quirk_acer_travelmate_2490,
532 },
533 {
534 .callback = dmi_matched,
535 .ident = "Acer Aspire 5680",
536 .matches = {
537 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
538 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
539 },
540 .driver_data = &quirk_acer_travelmate_2490,
541 },
542 {
543 .callback = dmi_matched,
544 .ident = "Acer Aspire 9110",
545 .matches = {
546 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
548 },
549 .driver_data = &quirk_acer_travelmate_2490,
550 },
551 {
552 .callback = dmi_matched,
553 .ident = "Acer TravelMate 2490",
554 .matches = {
555 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
556 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
557 },
558 .driver_data = &quirk_acer_travelmate_2490,
559 },
560 {
561 .callback = dmi_matched,
562 .ident = "Acer TravelMate 4200",
563 .matches = {
564 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
565 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
566 },
567 .driver_data = &quirk_acer_travelmate_2490,
568 },
569 {
570 .callback = dmi_matched,
571 .ident = "Acer Predator PH315-53",
572 .matches = {
573 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
574 DMI_MATCH(DMI_PRODUCT_NAME, "Predator PH315-53"),
575 },
576 .driver_data = &quirk_acer_predator_ph315_53,
577 },
578 {
579 .callback = dmi_matched,
580 .ident = "Acer Predator PHN16-71",
581 .matches = {
582 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
583 DMI_MATCH(DMI_PRODUCT_NAME, "Predator PHN16-71"),
584 },
585 .driver_data = &quirk_acer_predator_v4,
586 },
587 {
588 .callback = set_force_caps,
589 .ident = "Acer Aspire Switch 10E SW3-016",
590 .matches = {
591 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
592 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
593 },
594 .driver_data = (void *)ACER_CAP_KBD_DOCK,
595 },
596 {
597 .callback = set_force_caps,
598 .ident = "Acer Aspire Switch 10 SW5-012",
599 .matches = {
600 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
601 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
602 },
603 .driver_data = (void *)ACER_CAP_KBD_DOCK,
604 },
605 {
606 .callback = set_force_caps,
607 .ident = "Acer Aspire Switch V 10 SW5-017",
608 .matches = {
609 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
610 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
611 },
612 .driver_data = (void *)ACER_CAP_KBD_DOCK,
613 },
614 {
615 .callback = set_force_caps,
616 .ident = "Acer One 10 (S1003)",
617 .matches = {
618 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
619 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
620 },
621 .driver_data = (void *)ACER_CAP_KBD_DOCK,
622 },
623 {}
624};
625
626/*
627 * This quirk list is for those non-acer machines that have AMW0_GUID1
628 * but supported by acer-wmi in past days. Keeping this quirk list here
629 * is only for backward compatible. Please do not add new machine to
630 * here anymore. Those non-acer machines should be supported by
631 * appropriate wmi drivers.
632 */
633static const struct dmi_system_id non_acer_quirks[] __initconst = {
634 {
635 .callback = dmi_matched,
636 .ident = "Fujitsu Siemens Amilo Li 1718",
637 .matches = {
638 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
639 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
640 },
641 .driver_data = &quirk_fujitsu_amilo_li_1718,
642 },
643 {
644 .callback = dmi_matched,
645 .ident = "Medion MD 98300",
646 .matches = {
647 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
648 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
649 },
650 .driver_data = &quirk_medion_md_98300,
651 },
652 {
653 .callback = dmi_matched,
654 .ident = "Lenovo Ideapad S205",
655 .matches = {
656 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
657 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
658 },
659 .driver_data = &quirk_lenovo_ideapad_s205,
660 },
661 {
662 .callback = dmi_matched,
663 .ident = "Lenovo Ideapad S205 (Brazos)",
664 .matches = {
665 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
666 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
667 },
668 .driver_data = &quirk_lenovo_ideapad_s205,
669 },
670 {
671 .callback = dmi_matched,
672 .ident = "Lenovo 3000 N200",
673 .matches = {
674 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
675 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
676 },
677 .driver_data = &quirk_fujitsu_amilo_li_1718,
678 },
679 {
680 .callback = dmi_matched,
681 .ident = "Lenovo Ideapad S205-10382JG",
682 .matches = {
683 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
684 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
685 },
686 .driver_data = &quirk_lenovo_ideapad_s205,
687 },
688 {
689 .callback = dmi_matched,
690 .ident = "Lenovo Ideapad S205-1038DPG",
691 .matches = {
692 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
693 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
694 },
695 .driver_data = &quirk_lenovo_ideapad_s205,
696 },
697 {}
698};
699
700static struct platform_profile_handler platform_profile_handler;
701static bool platform_profile_support;
702
703/*
704 * The profile used before turbo mode. This variable is needed for
705 * returning from turbo mode when the mode key is in toggle mode.
706 */
707static int last_non_turbo_profile;
708
709enum acer_predator_v4_thermal_profile_ec {
710 ACER_PREDATOR_V4_THERMAL_PROFILE_ECO = 0x04,
711 ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO = 0x03,
712 ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE = 0x02,
713 ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET = 0x01,
714 ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED = 0x00,
715};
716
717enum acer_predator_v4_thermal_profile_wmi {
718 ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI = 0x060B,
719 ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI = 0x050B,
720 ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI = 0x040B,
721 ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI = 0x0B,
722 ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI = 0x010B,
723};
724
725/* Find which quirks are needed for a particular vendor/ model pair */
726static void __init find_quirks(void)
727{
728 if (!force_series) {
729 dmi_check_system(acer_quirks);
730 dmi_check_system(non_acer_quirks);
731 } else if (force_series == 2490) {
732 quirks = &quirk_acer_travelmate_2490;
733 }
734
735 if (quirks == NULL)
736 quirks = &quirk_unknown;
737}
738
739/*
740 * General interface convenience methods
741 */
742
743static bool has_cap(u32 cap)
744{
745 return interface->capability & cap;
746}
747
748/*
749 * AMW0 (V1) interface
750 */
751struct wmab_args {
752 u32 eax;
753 u32 ebx;
754 u32 ecx;
755 u32 edx;
756};
757
758struct wmab_ret {
759 u32 eax;
760 u32 ebx;
761 u32 ecx;
762 u32 edx;
763 u32 eex;
764};
765
766static acpi_status wmab_execute(struct wmab_args *regbuf,
767struct acpi_buffer *result)
768{
769 struct acpi_buffer input;
770 acpi_status status;
771 input.length = sizeof(struct wmab_args);
772 input.pointer = (u8 *)regbuf;
773
774 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
775
776 return status;
777}
778
779static acpi_status AMW0_get_u32(u32 *value, u32 cap)
780{
781 int err;
782 u8 result;
783
784 switch (cap) {
785 case ACER_CAP_MAILLED:
786 switch (quirks->mailled) {
787 default:
788 err = ec_read(0xA, &result);
789 if (err)
790 return AE_ERROR;
791 *value = (result >> 7) & 0x1;
792 return AE_OK;
793 }
794 break;
795 case ACER_CAP_WIRELESS:
796 switch (quirks->wireless) {
797 case 1:
798 err = ec_read(0x7B, &result);
799 if (err)
800 return AE_ERROR;
801 *value = result & 0x1;
802 return AE_OK;
803 case 2:
804 err = ec_read(0x71, &result);
805 if (err)
806 return AE_ERROR;
807 *value = result & 0x1;
808 return AE_OK;
809 case 3:
810 err = ec_read(0x78, &result);
811 if (err)
812 return AE_ERROR;
813 *value = result & 0x1;
814 return AE_OK;
815 default:
816 err = ec_read(0xA, &result);
817 if (err)
818 return AE_ERROR;
819 *value = (result >> 2) & 0x1;
820 return AE_OK;
821 }
822 break;
823 case ACER_CAP_BLUETOOTH:
824 switch (quirks->bluetooth) {
825 default:
826 err = ec_read(0xA, &result);
827 if (err)
828 return AE_ERROR;
829 *value = (result >> 4) & 0x1;
830 return AE_OK;
831 }
832 break;
833 case ACER_CAP_BRIGHTNESS:
834 switch (quirks->brightness) {
835 default:
836 err = ec_read(0x83, &result);
837 if (err)
838 return AE_ERROR;
839 *value = result;
840 return AE_OK;
841 }
842 break;
843 default:
844 return AE_ERROR;
845 }
846 return AE_OK;
847}
848
849static acpi_status AMW0_set_u32(u32 value, u32 cap)
850{
851 struct wmab_args args;
852
853 args.eax = ACER_AMW0_WRITE;
854 args.ebx = value ? (1<<8) : 0;
855 args.ecx = args.edx = 0;
856
857 switch (cap) {
858 case ACER_CAP_MAILLED:
859 if (value > 1)
860 return AE_BAD_PARAMETER;
861 args.ebx |= ACER_AMW0_MAILLED_MASK;
862 break;
863 case ACER_CAP_WIRELESS:
864 if (value > 1)
865 return AE_BAD_PARAMETER;
866 args.ebx |= ACER_AMW0_WIRELESS_MASK;
867 break;
868 case ACER_CAP_BLUETOOTH:
869 if (value > 1)
870 return AE_BAD_PARAMETER;
871 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
872 break;
873 case ACER_CAP_BRIGHTNESS:
874 if (value > max_brightness)
875 return AE_BAD_PARAMETER;
876 switch (quirks->brightness) {
877 default:
878 return ec_write(0x83, value);
879 }
880 default:
881 return AE_ERROR;
882 }
883
884 /* Actually do the set */
885 return wmab_execute(&args, NULL);
886}
887
888static acpi_status __init AMW0_find_mailled(void)
889{
890 struct wmab_args args;
891 struct wmab_ret ret;
892 acpi_status status = AE_OK;
893 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
894 union acpi_object *obj;
895
896 args.eax = 0x86;
897 args.ebx = args.ecx = args.edx = 0;
898
899 status = wmab_execute(&args, &out);
900 if (ACPI_FAILURE(status))
901 return status;
902
903 obj = (union acpi_object *) out.pointer;
904 if (obj && obj->type == ACPI_TYPE_BUFFER &&
905 obj->buffer.length == sizeof(struct wmab_ret)) {
906 ret = *((struct wmab_ret *) obj->buffer.pointer);
907 } else {
908 kfree(out.pointer);
909 return AE_ERROR;
910 }
911
912 if (ret.eex & 0x1)
913 interface->capability |= ACER_CAP_MAILLED;
914
915 kfree(out.pointer);
916
917 return AE_OK;
918}
919
920static const struct acpi_device_id norfkill_ids[] __initconst = {
921 { "VPC2004", 0},
922 { "IBM0068", 0},
923 { "LEN0068", 0},
924 { "SNY5001", 0}, /* sony-laptop in charge */
925 { "HPQ6601", 0},
926 { "", 0},
927};
928
929static int __init AMW0_set_cap_acpi_check_device(void)
930{
931 const struct acpi_device_id *id;
932
933 for (id = norfkill_ids; id->id[0]; id++)
934 if (acpi_dev_found(id->id))
935 return true;
936
937 return false;
938}
939
940static acpi_status __init AMW0_set_capabilities(void)
941{
942 struct wmab_args args;
943 struct wmab_ret ret;
944 acpi_status status;
945 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
946 union acpi_object *obj;
947
948 /*
949 * On laptops with this strange GUID (non Acer), normal probing doesn't
950 * work.
951 */
952 if (wmi_has_guid(AMW0_GUID2)) {
953 if ((quirks != &quirk_unknown) ||
954 !AMW0_set_cap_acpi_check_device())
955 interface->capability |= ACER_CAP_WIRELESS;
956 return AE_OK;
957 }
958
959 args.eax = ACER_AMW0_WRITE;
960 args.ecx = args.edx = 0;
961
962 args.ebx = 0xa2 << 8;
963 args.ebx |= ACER_AMW0_WIRELESS_MASK;
964
965 status = wmab_execute(&args, &out);
966 if (ACPI_FAILURE(status))
967 return status;
968
969 obj = out.pointer;
970 if (obj && obj->type == ACPI_TYPE_BUFFER &&
971 obj->buffer.length == sizeof(struct wmab_ret)) {
972 ret = *((struct wmab_ret *) obj->buffer.pointer);
973 } else {
974 status = AE_ERROR;
975 goto out;
976 }
977
978 if (ret.eax & 0x1)
979 interface->capability |= ACER_CAP_WIRELESS;
980
981 args.ebx = 2 << 8;
982 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
983
984 /*
985 * It's ok to use existing buffer for next wmab_execute call.
986 * But we need to kfree(out.pointer) if next wmab_execute fail.
987 */
988 status = wmab_execute(&args, &out);
989 if (ACPI_FAILURE(status))
990 goto out;
991
992 obj = (union acpi_object *) out.pointer;
993 if (obj && obj->type == ACPI_TYPE_BUFFER
994 && obj->buffer.length == sizeof(struct wmab_ret)) {
995 ret = *((struct wmab_ret *) obj->buffer.pointer);
996 } else {
997 status = AE_ERROR;
998 goto out;
999 }
1000
1001 if (ret.eax & 0x1)
1002 interface->capability |= ACER_CAP_BLUETOOTH;
1003
1004 /*
1005 * This appears to be safe to enable, since all Wistron based laptops
1006 * appear to use the same EC register for brightness, even if they
1007 * differ for wireless, etc
1008 */
1009 if (quirks->brightness >= 0)
1010 interface->capability |= ACER_CAP_BRIGHTNESS;
1011
1012 status = AE_OK;
1013out:
1014 kfree(out.pointer);
1015 return status;
1016}
1017
1018static struct wmi_interface AMW0_interface = {
1019 .type = ACER_AMW0,
1020};
1021
1022static struct wmi_interface AMW0_V2_interface = {
1023 .type = ACER_AMW0_V2,
1024};
1025
1026/*
1027 * New interface (The WMID interface)
1028 */
1029static acpi_status
1030WMI_execute_u32(u32 method_id, u32 in, u32 *out)
1031{
1032 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
1033 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1034 union acpi_object *obj;
1035 u32 tmp = 0;
1036 acpi_status status;
1037
1038 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
1039
1040 if (ACPI_FAILURE(status))
1041 return status;
1042
1043 obj = (union acpi_object *) result.pointer;
1044 if (obj) {
1045 if (obj->type == ACPI_TYPE_BUFFER &&
1046 (obj->buffer.length == sizeof(u32) ||
1047 obj->buffer.length == sizeof(u64))) {
1048 tmp = *((u32 *) obj->buffer.pointer);
1049 } else if (obj->type == ACPI_TYPE_INTEGER) {
1050 tmp = (u32) obj->integer.value;
1051 }
1052 }
1053
1054 if (out)
1055 *out = tmp;
1056
1057 kfree(result.pointer);
1058
1059 return status;
1060}
1061
1062static acpi_status WMID_get_u32(u32 *value, u32 cap)
1063{
1064 acpi_status status;
1065 u8 tmp;
1066 u32 result, method_id = 0;
1067
1068 switch (cap) {
1069 case ACER_CAP_WIRELESS:
1070 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1071 break;
1072 case ACER_CAP_BLUETOOTH:
1073 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1074 break;
1075 case ACER_CAP_BRIGHTNESS:
1076 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1077 break;
1078 case ACER_CAP_THREEG:
1079 method_id = ACER_WMID_GET_THREEG_METHODID;
1080 break;
1081 case ACER_CAP_MAILLED:
1082 if (quirks->mailled == 1) {
1083 ec_read(0x9f, &tmp);
1084 *value = tmp & 0x1;
1085 return 0;
1086 }
1087 fallthrough;
1088 default:
1089 return AE_ERROR;
1090 }
1091 status = WMI_execute_u32(method_id, 0, &result);
1092
1093 if (ACPI_SUCCESS(status))
1094 *value = (u8)result;
1095
1096 return status;
1097}
1098
1099static acpi_status WMID_set_u32(u32 value, u32 cap)
1100{
1101 u32 method_id = 0;
1102 char param;
1103
1104 switch (cap) {
1105 case ACER_CAP_BRIGHTNESS:
1106 if (value > max_brightness)
1107 return AE_BAD_PARAMETER;
1108 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1109 break;
1110 case ACER_CAP_WIRELESS:
1111 if (value > 1)
1112 return AE_BAD_PARAMETER;
1113 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1114 break;
1115 case ACER_CAP_BLUETOOTH:
1116 if (value > 1)
1117 return AE_BAD_PARAMETER;
1118 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1119 break;
1120 case ACER_CAP_THREEG:
1121 if (value > 1)
1122 return AE_BAD_PARAMETER;
1123 method_id = ACER_WMID_SET_THREEG_METHODID;
1124 break;
1125 case ACER_CAP_MAILLED:
1126 if (value > 1)
1127 return AE_BAD_PARAMETER;
1128 if (quirks->mailled == 1) {
1129 param = value ? 0x92 : 0x93;
1130 i8042_lock_chip();
1131 i8042_command(¶m, 0x1059);
1132 i8042_unlock_chip();
1133 return 0;
1134 }
1135 break;
1136 default:
1137 return AE_ERROR;
1138 }
1139 return WMI_execute_u32(method_id, (u32)value, NULL);
1140}
1141
1142static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1143{
1144 struct wmid3_gds_return_value return_value;
1145 acpi_status status;
1146 union acpi_object *obj;
1147 struct wmid3_gds_get_input_param params = {
1148 .function_num = 0x1,
1149 .hotkey_number = commun_fn_key_number,
1150 .devices = device,
1151 };
1152 struct acpi_buffer input = {
1153 sizeof(struct wmid3_gds_get_input_param),
1154 ¶ms
1155 };
1156 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1157
1158 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1159 if (ACPI_FAILURE(status))
1160 return status;
1161
1162 obj = output.pointer;
1163
1164 if (!obj)
1165 return AE_ERROR;
1166 else if (obj->type != ACPI_TYPE_BUFFER) {
1167 kfree(obj);
1168 return AE_ERROR;
1169 }
1170 if (obj->buffer.length != 8) {
1171 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1172 kfree(obj);
1173 return AE_ERROR;
1174 }
1175
1176 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1177 kfree(obj);
1178
1179 if (return_value.error_code || return_value.ec_return_value)
1180 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1181 device,
1182 return_value.error_code,
1183 return_value.ec_return_value);
1184 else
1185 *value = !!(return_value.devices & device);
1186
1187 return status;
1188}
1189
1190static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1191{
1192 u16 device;
1193
1194 switch (cap) {
1195 case ACER_CAP_WIRELESS:
1196 device = ACER_WMID3_GDS_WIRELESS;
1197 break;
1198 case ACER_CAP_BLUETOOTH:
1199 device = ACER_WMID3_GDS_BLUETOOTH;
1200 break;
1201 case ACER_CAP_THREEG:
1202 device = ACER_WMID3_GDS_THREEG;
1203 break;
1204 default:
1205 return AE_ERROR;
1206 }
1207 return wmid3_get_device_status(value, device);
1208}
1209
1210static acpi_status wmid3_set_device_status(u32 value, u16 device)
1211{
1212 struct wmid3_gds_return_value return_value;
1213 acpi_status status;
1214 union acpi_object *obj;
1215 u16 devices;
1216 struct wmid3_gds_get_input_param get_params = {
1217 .function_num = 0x1,
1218 .hotkey_number = commun_fn_key_number,
1219 .devices = commun_func_bitmap,
1220 };
1221 struct acpi_buffer get_input = {
1222 sizeof(struct wmid3_gds_get_input_param),
1223 &get_params
1224 };
1225 struct wmid3_gds_set_input_param set_params = {
1226 .function_num = 0x2,
1227 .hotkey_number = commun_fn_key_number,
1228 .devices = commun_func_bitmap,
1229 };
1230 struct acpi_buffer set_input = {
1231 sizeof(struct wmid3_gds_set_input_param),
1232 &set_params
1233 };
1234 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1235 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1236
1237 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1238 if (ACPI_FAILURE(status))
1239 return status;
1240
1241 obj = output.pointer;
1242
1243 if (!obj)
1244 return AE_ERROR;
1245 else if (obj->type != ACPI_TYPE_BUFFER) {
1246 kfree(obj);
1247 return AE_ERROR;
1248 }
1249 if (obj->buffer.length != 8) {
1250 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1251 kfree(obj);
1252 return AE_ERROR;
1253 }
1254
1255 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1256 kfree(obj);
1257
1258 if (return_value.error_code || return_value.ec_return_value) {
1259 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1260 return_value.error_code,
1261 return_value.ec_return_value);
1262 return status;
1263 }
1264
1265 devices = return_value.devices;
1266 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1267
1268 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1269 if (ACPI_FAILURE(status))
1270 return status;
1271
1272 obj = output2.pointer;
1273
1274 if (!obj)
1275 return AE_ERROR;
1276 else if (obj->type != ACPI_TYPE_BUFFER) {
1277 kfree(obj);
1278 return AE_ERROR;
1279 }
1280 if (obj->buffer.length != 4) {
1281 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1282 kfree(obj);
1283 return AE_ERROR;
1284 }
1285
1286 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1287 kfree(obj);
1288
1289 if (return_value.error_code || return_value.ec_return_value)
1290 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1291 return_value.error_code,
1292 return_value.ec_return_value);
1293
1294 return status;
1295}
1296
1297static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1298{
1299 u16 device;
1300
1301 switch (cap) {
1302 case ACER_CAP_WIRELESS:
1303 device = ACER_WMID3_GDS_WIRELESS;
1304 break;
1305 case ACER_CAP_BLUETOOTH:
1306 device = ACER_WMID3_GDS_BLUETOOTH;
1307 break;
1308 case ACER_CAP_THREEG:
1309 device = ACER_WMID3_GDS_THREEG;
1310 break;
1311 default:
1312 return AE_ERROR;
1313 }
1314 return wmid3_set_device_status(value, device);
1315}
1316
1317static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1318{
1319 struct hotkey_function_type_aa *type_aa;
1320
1321 /* We are looking for OEM-specific Type AAh */
1322 if (header->type != 0xAA)
1323 return;
1324
1325 has_type_aa = true;
1326 type_aa = (struct hotkey_function_type_aa *) header;
1327
1328 pr_info("Function bitmap for Communication Button: 0x%x\n",
1329 type_aa->commun_func_bitmap);
1330 commun_func_bitmap = type_aa->commun_func_bitmap;
1331
1332 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1333 interface->capability |= ACER_CAP_WIRELESS;
1334 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1335 interface->capability |= ACER_CAP_THREEG;
1336 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1337 interface->capability |= ACER_CAP_BLUETOOTH;
1338 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1339 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1340
1341 commun_fn_key_number = type_aa->commun_fn_key_number;
1342}
1343
1344static acpi_status __init WMID_set_capabilities(void)
1345{
1346 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1347 union acpi_object *obj;
1348 acpi_status status;
1349 u32 devices;
1350
1351 status = wmi_query_block(WMID_GUID2, 0, &out);
1352 if (ACPI_FAILURE(status))
1353 return status;
1354
1355 obj = (union acpi_object *) out.pointer;
1356 if (obj) {
1357 if (obj->type == ACPI_TYPE_BUFFER &&
1358 (obj->buffer.length == sizeof(u32) ||
1359 obj->buffer.length == sizeof(u64))) {
1360 devices = *((u32 *) obj->buffer.pointer);
1361 } else if (obj->type == ACPI_TYPE_INTEGER) {
1362 devices = (u32) obj->integer.value;
1363 } else {
1364 kfree(out.pointer);
1365 return AE_ERROR;
1366 }
1367 } else {
1368 kfree(out.pointer);
1369 return AE_ERROR;
1370 }
1371
1372 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1373 if (devices & 0x07)
1374 interface->capability |= ACER_CAP_WIRELESS;
1375 if (devices & 0x40)
1376 interface->capability |= ACER_CAP_THREEG;
1377 if (devices & 0x10)
1378 interface->capability |= ACER_CAP_BLUETOOTH;
1379
1380 if (!(devices & 0x20))
1381 max_brightness = 0x9;
1382
1383 kfree(out.pointer);
1384 return status;
1385}
1386
1387static struct wmi_interface wmid_interface = {
1388 .type = ACER_WMID,
1389};
1390
1391static struct wmi_interface wmid_v2_interface = {
1392 .type = ACER_WMID_v2,
1393};
1394
1395/*
1396 * WMID Gaming interface
1397 */
1398
1399static acpi_status
1400WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
1401{
1402 struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
1403 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1404 union acpi_object *obj;
1405 u64 tmp = 0;
1406 acpi_status status;
1407
1408 status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
1409
1410 if (ACPI_FAILURE(status))
1411 return status;
1412 obj = (union acpi_object *) result.pointer;
1413
1414 if (obj) {
1415 if (obj->type == ACPI_TYPE_BUFFER) {
1416 if (obj->buffer.length == sizeof(u32))
1417 tmp = *((u32 *) obj->buffer.pointer);
1418 else if (obj->buffer.length == sizeof(u64))
1419 tmp = *((u64 *) obj->buffer.pointer);
1420 } else if (obj->type == ACPI_TYPE_INTEGER) {
1421 tmp = (u64) obj->integer.value;
1422 }
1423 }
1424
1425 if (out)
1426 *out = tmp;
1427
1428 kfree(result.pointer);
1429
1430 return status;
1431}
1432
1433static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
1434{
1435 u32 method_id = 0;
1436
1437 if (!(interface->capability & cap))
1438 return AE_BAD_PARAMETER;
1439
1440 switch (cap) {
1441 case ACER_CAP_TURBO_LED:
1442 method_id = ACER_WMID_SET_GAMING_LED_METHODID;
1443 break;
1444 case ACER_CAP_TURBO_FAN:
1445 method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
1446 break;
1447 case ACER_CAP_TURBO_OC:
1448 method_id = ACER_WMID_SET_GAMING_MISC_SETTING_METHODID;
1449 break;
1450 default:
1451 return AE_BAD_PARAMETER;
1452 }
1453
1454 return WMI_gaming_execute_u64(method_id, value, NULL);
1455}
1456
1457static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap)
1458{
1459 acpi_status status;
1460 u64 result;
1461 u64 input;
1462 u32 method_id;
1463
1464 if (!(interface->capability & cap))
1465 return AE_BAD_PARAMETER;
1466
1467 switch (cap) {
1468 case ACER_CAP_TURBO_LED:
1469 method_id = ACER_WMID_GET_GAMING_LED_METHODID;
1470 input = 0x1;
1471 break;
1472 default:
1473 return AE_BAD_PARAMETER;
1474 }
1475 status = WMI_gaming_execute_u64(method_id, input, &result);
1476 if (ACPI_SUCCESS(status))
1477 *value = (u64) result;
1478
1479 return status;
1480}
1481
1482static void WMID_gaming_set_fan_mode(u8 fan_mode)
1483{
1484 /* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
1485 u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
1486 int i;
1487
1488 if (quirks->cpu_fans > 0)
1489 gpu_fan_config2 |= 1;
1490 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1491 gpu_fan_config2 |= 1 << (i + 1);
1492 for (i = 0; i < quirks->gpu_fans; ++i)
1493 gpu_fan_config2 |= 1 << (i + 3);
1494 if (quirks->cpu_fans > 0)
1495 gpu_fan_config1 |= fan_mode;
1496 for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
1497 gpu_fan_config1 |= fan_mode << (2 * i + 2);
1498 for (i = 0; i < quirks->gpu_fans; ++i)
1499 gpu_fan_config1 |= fan_mode << (2 * i + 6);
1500 WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
1501}
1502
1503/*
1504 * Generic Device (interface-independent)
1505 */
1506
1507static acpi_status get_u32(u32 *value, u32 cap)
1508{
1509 acpi_status status = AE_ERROR;
1510
1511 switch (interface->type) {
1512 case ACER_AMW0:
1513 status = AMW0_get_u32(value, cap);
1514 break;
1515 case ACER_AMW0_V2:
1516 if (cap == ACER_CAP_MAILLED) {
1517 status = AMW0_get_u32(value, cap);
1518 break;
1519 }
1520 fallthrough;
1521 case ACER_WMID:
1522 status = WMID_get_u32(value, cap);
1523 break;
1524 case ACER_WMID_v2:
1525 if (cap & (ACER_CAP_WIRELESS |
1526 ACER_CAP_BLUETOOTH |
1527 ACER_CAP_THREEG))
1528 status = wmid_v2_get_u32(value, cap);
1529 else if (wmi_has_guid(WMID_GUID2))
1530 status = WMID_get_u32(value, cap);
1531 break;
1532 }
1533
1534 return status;
1535}
1536
1537static acpi_status set_u32(u32 value, u32 cap)
1538{
1539 acpi_status status;
1540
1541 if (interface->capability & cap) {
1542 switch (interface->type) {
1543 case ACER_AMW0:
1544 return AMW0_set_u32(value, cap);
1545 case ACER_AMW0_V2:
1546 if (cap == ACER_CAP_MAILLED)
1547 return AMW0_set_u32(value, cap);
1548
1549 /*
1550 * On some models, some WMID methods don't toggle
1551 * properly. For those cases, we want to run the AMW0
1552 * method afterwards to be certain we've really toggled
1553 * the device state.
1554 */
1555 if (cap == ACER_CAP_WIRELESS ||
1556 cap == ACER_CAP_BLUETOOTH) {
1557 status = WMID_set_u32(value, cap);
1558 if (ACPI_FAILURE(status))
1559 return status;
1560
1561 return AMW0_set_u32(value, cap);
1562 }
1563 fallthrough;
1564 case ACER_WMID:
1565 return WMID_set_u32(value, cap);
1566 case ACER_WMID_v2:
1567 if (cap & (ACER_CAP_WIRELESS |
1568 ACER_CAP_BLUETOOTH |
1569 ACER_CAP_THREEG))
1570 return wmid_v2_set_u32(value, cap);
1571 else if (wmi_has_guid(WMID_GUID2))
1572 return WMID_set_u32(value, cap);
1573 fallthrough;
1574 default:
1575 return AE_BAD_PARAMETER;
1576 }
1577 }
1578 return AE_BAD_PARAMETER;
1579}
1580
1581static void __init acer_commandline_init(void)
1582{
1583 /*
1584 * These will all fail silently if the value given is invalid, or the
1585 * capability isn't available on the given interface
1586 */
1587 if (mailled >= 0)
1588 set_u32(mailled, ACER_CAP_MAILLED);
1589 if (!has_type_aa && threeg >= 0)
1590 set_u32(threeg, ACER_CAP_THREEG);
1591 if (brightness >= 0)
1592 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1593}
1594
1595/*
1596 * LED device (Mail LED only, no other LEDs known yet)
1597 */
1598static void mail_led_set(struct led_classdev *led_cdev,
1599enum led_brightness value)
1600{
1601 set_u32(value, ACER_CAP_MAILLED);
1602}
1603
1604static struct led_classdev mail_led = {
1605 .name = "acer-wmi::mail",
1606 .brightness_set = mail_led_set,
1607};
1608
1609static int acer_led_init(struct device *dev)
1610{
1611 return led_classdev_register(dev, &mail_led);
1612}
1613
1614static void acer_led_exit(void)
1615{
1616 set_u32(LED_OFF, ACER_CAP_MAILLED);
1617 led_classdev_unregister(&mail_led);
1618}
1619
1620/*
1621 * Backlight device
1622 */
1623static struct backlight_device *acer_backlight_device;
1624
1625static int read_brightness(struct backlight_device *bd)
1626{
1627 u32 value;
1628 get_u32(&value, ACER_CAP_BRIGHTNESS);
1629 return value;
1630}
1631
1632static int update_bl_status(struct backlight_device *bd)
1633{
1634 int intensity = backlight_get_brightness(bd);
1635
1636 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1637
1638 return 0;
1639}
1640
1641static const struct backlight_ops acer_bl_ops = {
1642 .get_brightness = read_brightness,
1643 .update_status = update_bl_status,
1644};
1645
1646static int acer_backlight_init(struct device *dev)
1647{
1648 struct backlight_properties props;
1649 struct backlight_device *bd;
1650
1651 memset(&props, 0, sizeof(struct backlight_properties));
1652 props.type = BACKLIGHT_PLATFORM;
1653 props.max_brightness = max_brightness;
1654 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1655 &props);
1656 if (IS_ERR(bd)) {
1657 pr_err("Could not register Acer backlight device\n");
1658 acer_backlight_device = NULL;
1659 return PTR_ERR(bd);
1660 }
1661
1662 acer_backlight_device = bd;
1663
1664 bd->props.power = FB_BLANK_UNBLANK;
1665 bd->props.brightness = read_brightness(bd);
1666 backlight_update_status(bd);
1667 return 0;
1668}
1669
1670static void acer_backlight_exit(void)
1671{
1672 backlight_device_unregister(acer_backlight_device);
1673}
1674
1675/*
1676 * Accelerometer device
1677 */
1678static acpi_handle gsensor_handle;
1679
1680static int acer_gsensor_init(void)
1681{
1682 acpi_status status;
1683 struct acpi_buffer output;
1684 union acpi_object out_obj;
1685
1686 output.length = sizeof(out_obj);
1687 output.pointer = &out_obj;
1688 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1689 if (ACPI_FAILURE(status))
1690 return -1;
1691
1692 return 0;
1693}
1694
1695static int acer_gsensor_open(struct input_dev *input)
1696{
1697 return acer_gsensor_init();
1698}
1699
1700static int acer_gsensor_event(void)
1701{
1702 acpi_status status;
1703 struct acpi_buffer output;
1704 union acpi_object out_obj[5];
1705
1706 if (!acer_wmi_accel_dev)
1707 return -1;
1708
1709 output.length = sizeof(out_obj);
1710 output.pointer = out_obj;
1711
1712 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1713 if (ACPI_FAILURE(status))
1714 return -1;
1715
1716 if (out_obj->package.count != 4)
1717 return -1;
1718
1719 input_report_abs(acer_wmi_accel_dev, ABS_X,
1720 (s16)out_obj->package.elements[0].integer.value);
1721 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1722 (s16)out_obj->package.elements[1].integer.value);
1723 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1724 (s16)out_obj->package.elements[2].integer.value);
1725 input_sync(acer_wmi_accel_dev);
1726 return 0;
1727}
1728
1729static int acer_get_fan_speed(int fan)
1730{
1731 if (quirks->predator_v4) {
1732 acpi_status status;
1733 u64 fanspeed;
1734
1735 status = WMI_gaming_execute_u64(
1736 ACER_WMID_GET_GAMING_SYS_INFO_METHODID,
1737 fan == 0 ? ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED :
1738 ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED,
1739 &fanspeed);
1740
1741 if (ACPI_FAILURE(status))
1742 return -EIO;
1743
1744 return FIELD_GET(ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK, fanspeed);
1745 }
1746 return -EOPNOTSUPP;
1747}
1748
1749/*
1750 * Predator series turbo button
1751 */
1752static int acer_toggle_turbo(void)
1753{
1754 u64 turbo_led_state;
1755
1756 /* Get current state from turbo button */
1757 if (ACPI_FAILURE(WMID_gaming_get_u64(&turbo_led_state, ACER_CAP_TURBO_LED)))
1758 return -1;
1759
1760 if (turbo_led_state) {
1761 /* Turn off turbo led */
1762 WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
1763
1764 /* Set FAN mode to auto */
1765 WMID_gaming_set_fan_mode(0x1);
1766
1767 /* Set OC to normal */
1768 WMID_gaming_set_u64(0x5, ACER_CAP_TURBO_OC);
1769 WMID_gaming_set_u64(0x7, ACER_CAP_TURBO_OC);
1770 } else {
1771 /* Turn on turbo led */
1772 WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
1773
1774 /* Set FAN mode to turbo */
1775 WMID_gaming_set_fan_mode(0x2);
1776
1777 /* Set OC to turbo mode */
1778 WMID_gaming_set_u64(0x205, ACER_CAP_TURBO_OC);
1779 WMID_gaming_set_u64(0x207, ACER_CAP_TURBO_OC);
1780 }
1781 return turbo_led_state;
1782}
1783
1784static int
1785acer_predator_v4_platform_profile_get(struct platform_profile_handler *pprof,
1786 enum platform_profile_option *profile)
1787{
1788 u8 tp;
1789 int err;
1790
1791 err = ec_read(ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET, &tp);
1792
1793 if (err < 0)
1794 return err;
1795
1796 switch (tp) {
1797 case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
1798 *profile = PLATFORM_PROFILE_PERFORMANCE;
1799 break;
1800 case ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE:
1801 *profile = PLATFORM_PROFILE_BALANCED_PERFORMANCE;
1802 break;
1803 case ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED:
1804 *profile = PLATFORM_PROFILE_BALANCED;
1805 break;
1806 case ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET:
1807 *profile = PLATFORM_PROFILE_QUIET;
1808 break;
1809 case ACER_PREDATOR_V4_THERMAL_PROFILE_ECO:
1810 *profile = PLATFORM_PROFILE_LOW_POWER;
1811 break;
1812 default:
1813 return -EOPNOTSUPP;
1814 }
1815
1816 return 0;
1817}
1818
1819static int
1820acer_predator_v4_platform_profile_set(struct platform_profile_handler *pprof,
1821 enum platform_profile_option profile)
1822{
1823 int tp;
1824 acpi_status status;
1825
1826 switch (profile) {
1827 case PLATFORM_PROFILE_PERFORMANCE:
1828 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
1829 break;
1830 case PLATFORM_PROFILE_BALANCED_PERFORMANCE:
1831 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI;
1832 break;
1833 case PLATFORM_PROFILE_BALANCED:
1834 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1835 break;
1836 case PLATFORM_PROFILE_QUIET:
1837 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI;
1838 break;
1839 case PLATFORM_PROFILE_LOW_POWER:
1840 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
1841 break;
1842 default:
1843 return -EOPNOTSUPP;
1844 }
1845
1846 status = WMI_gaming_execute_u64(
1847 ACER_WMID_SET_GAMING_MISC_SETTING_METHODID, tp, NULL);
1848
1849 if (ACPI_FAILURE(status))
1850 return -EIO;
1851
1852 if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI)
1853 last_non_turbo_profile = tp;
1854
1855 return 0;
1856}
1857
1858static int acer_platform_profile_setup(void)
1859{
1860 if (quirks->predator_v4) {
1861 int err;
1862
1863 platform_profile_handler.profile_get =
1864 acer_predator_v4_platform_profile_get;
1865 platform_profile_handler.profile_set =
1866 acer_predator_v4_platform_profile_set;
1867
1868 set_bit(PLATFORM_PROFILE_PERFORMANCE,
1869 platform_profile_handler.choices);
1870 set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE,
1871 platform_profile_handler.choices);
1872 set_bit(PLATFORM_PROFILE_BALANCED,
1873 platform_profile_handler.choices);
1874 set_bit(PLATFORM_PROFILE_QUIET,
1875 platform_profile_handler.choices);
1876 set_bit(PLATFORM_PROFILE_LOW_POWER,
1877 platform_profile_handler.choices);
1878
1879 err = platform_profile_register(&platform_profile_handler);
1880 if (err)
1881 return err;
1882
1883 platform_profile_support = true;
1884
1885 /* Set default non-turbo profile */
1886 last_non_turbo_profile =
1887 ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1888 }
1889 return 0;
1890}
1891
1892static int acer_thermal_profile_change(void)
1893{
1894 /*
1895 * This mode key can rotate each mode or toggle turbo mode.
1896 * On battery, only ECO and BALANCED mode are available.
1897 */
1898 if (quirks->predator_v4) {
1899 u8 current_tp;
1900 int tp, err;
1901 u64 on_AC;
1902 acpi_status status;
1903
1904 err = ec_read(ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET,
1905 ¤t_tp);
1906
1907 if (err < 0)
1908 return err;
1909
1910 /* Check power source */
1911 status = WMI_gaming_execute_u64(
1912 ACER_WMID_GET_GAMING_SYS_INFO_METHODID,
1913 ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC);
1914
1915 if (ACPI_FAILURE(status))
1916 return -EIO;
1917
1918 switch (current_tp) {
1919 case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
1920 if (!on_AC)
1921 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1922 else if (cycle_gaming_thermal_profile)
1923 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
1924 else
1925 tp = last_non_turbo_profile;
1926 break;
1927 case ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE:
1928 if (!on_AC)
1929 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1930 else
1931 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
1932 break;
1933 case ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED:
1934 if (!on_AC)
1935 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
1936 else if (cycle_gaming_thermal_profile)
1937 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI;
1938 else
1939 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
1940 break;
1941 case ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET:
1942 if (!on_AC)
1943 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1944 else if (cycle_gaming_thermal_profile)
1945 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1946 else
1947 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
1948 break;
1949 case ACER_PREDATOR_V4_THERMAL_PROFILE_ECO:
1950 if (!on_AC)
1951 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
1952 else if (cycle_gaming_thermal_profile)
1953 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI;
1954 else
1955 tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
1956 break;
1957 default:
1958 return -EOPNOTSUPP;
1959 }
1960
1961 status = WMI_gaming_execute_u64(
1962 ACER_WMID_SET_GAMING_MISC_SETTING_METHODID, tp, NULL);
1963
1964 if (ACPI_FAILURE(status))
1965 return -EIO;
1966
1967 /* Store non-turbo profile for turbo mode toggle*/
1968 if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI)
1969 last_non_turbo_profile = tp;
1970
1971 platform_profile_notify();
1972 }
1973
1974 return 0;
1975}
1976
1977/*
1978 * Switch series keyboard dock status
1979 */
1980static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1981{
1982 switch (kbd_dock_state) {
1983 case 0x01: /* Docked, traditional clamshell laptop mode */
1984 return 0;
1985 case 0x04: /* Stand-alone tablet */
1986 case 0x40: /* Docked, tent mode, keyboard not usable */
1987 return 1;
1988 default:
1989 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1990 }
1991
1992 return 0;
1993}
1994
1995static void acer_kbd_dock_get_initial_state(void)
1996{
1997 u8 *output, input[8] = { 0x05, 0x00, };
1998 struct acpi_buffer input_buf = { sizeof(input), input };
1999 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
2000 union acpi_object *obj;
2001 acpi_status status;
2002 int sw_tablet_mode;
2003
2004 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
2005 if (ACPI_FAILURE(status)) {
2006 pr_err("Error getting keyboard-dock initial status: %s\n",
2007 acpi_format_exception(status));
2008 return;
2009 }
2010
2011 obj = output_buf.pointer;
2012 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
2013 pr_err("Unexpected output format getting keyboard-dock initial status\n");
2014 goto out_free_obj;
2015 }
2016
2017 output = obj->buffer.pointer;
2018 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
2019 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
2020 output[0], output[3]);
2021 goto out_free_obj;
2022 }
2023
2024 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
2025 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
2026
2027out_free_obj:
2028 kfree(obj);
2029}
2030
2031static void acer_kbd_dock_event(const struct event_return_value *event)
2032{
2033 int sw_tablet_mode;
2034
2035 if (!has_cap(ACER_CAP_KBD_DOCK))
2036 return;
2037
2038 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
2039 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
2040 input_sync(acer_wmi_input_dev);
2041}
2042
2043/*
2044 * Rfkill devices
2045 */
2046static void acer_rfkill_update(struct work_struct *ignored);
2047static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
2048static void acer_rfkill_update(struct work_struct *ignored)
2049{
2050 u32 state;
2051 acpi_status status;
2052
2053 if (has_cap(ACER_CAP_WIRELESS)) {
2054 status = get_u32(&state, ACER_CAP_WIRELESS);
2055 if (ACPI_SUCCESS(status)) {
2056 if (quirks->wireless == 3)
2057 rfkill_set_hw_state(wireless_rfkill, !state);
2058 else
2059 rfkill_set_sw_state(wireless_rfkill, !state);
2060 }
2061 }
2062
2063 if (has_cap(ACER_CAP_BLUETOOTH)) {
2064 status = get_u32(&state, ACER_CAP_BLUETOOTH);
2065 if (ACPI_SUCCESS(status))
2066 rfkill_set_sw_state(bluetooth_rfkill, !state);
2067 }
2068
2069 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
2070 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
2071 if (ACPI_SUCCESS(status))
2072 rfkill_set_sw_state(threeg_rfkill, !state);
2073 }
2074
2075 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
2076}
2077
2078static int acer_rfkill_set(void *data, bool blocked)
2079{
2080 acpi_status status;
2081 u32 cap = (unsigned long)data;
2082
2083 if (rfkill_inited) {
2084 status = set_u32(!blocked, cap);
2085 if (ACPI_FAILURE(status))
2086 return -ENODEV;
2087 }
2088
2089 return 0;
2090}
2091
2092static const struct rfkill_ops acer_rfkill_ops = {
2093 .set_block = acer_rfkill_set,
2094};
2095
2096static struct rfkill *acer_rfkill_register(struct device *dev,
2097 enum rfkill_type type,
2098 char *name, u32 cap)
2099{
2100 int err;
2101 struct rfkill *rfkill_dev;
2102 u32 state;
2103 acpi_status status;
2104
2105 rfkill_dev = rfkill_alloc(name, dev, type,
2106 &acer_rfkill_ops,
2107 (void *)(unsigned long)cap);
2108 if (!rfkill_dev)
2109 return ERR_PTR(-ENOMEM);
2110
2111 status = get_u32(&state, cap);
2112
2113 err = rfkill_register(rfkill_dev);
2114 if (err) {
2115 rfkill_destroy(rfkill_dev);
2116 return ERR_PTR(err);
2117 }
2118
2119 if (ACPI_SUCCESS(status))
2120 rfkill_set_sw_state(rfkill_dev, !state);
2121
2122 return rfkill_dev;
2123}
2124
2125static int acer_rfkill_init(struct device *dev)
2126{
2127 int err;
2128
2129 if (has_cap(ACER_CAP_WIRELESS)) {
2130 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
2131 "acer-wireless", ACER_CAP_WIRELESS);
2132 if (IS_ERR(wireless_rfkill)) {
2133 err = PTR_ERR(wireless_rfkill);
2134 goto error_wireless;
2135 }
2136 }
2137
2138 if (has_cap(ACER_CAP_BLUETOOTH)) {
2139 bluetooth_rfkill = acer_rfkill_register(dev,
2140 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
2141 ACER_CAP_BLUETOOTH);
2142 if (IS_ERR(bluetooth_rfkill)) {
2143 err = PTR_ERR(bluetooth_rfkill);
2144 goto error_bluetooth;
2145 }
2146 }
2147
2148 if (has_cap(ACER_CAP_THREEG)) {
2149 threeg_rfkill = acer_rfkill_register(dev,
2150 RFKILL_TYPE_WWAN, "acer-threeg",
2151 ACER_CAP_THREEG);
2152 if (IS_ERR(threeg_rfkill)) {
2153 err = PTR_ERR(threeg_rfkill);
2154 goto error_threeg;
2155 }
2156 }
2157
2158 rfkill_inited = true;
2159
2160 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
2161 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
2162 schedule_delayed_work(&acer_rfkill_work,
2163 round_jiffies_relative(HZ));
2164
2165 return 0;
2166
2167error_threeg:
2168 if (has_cap(ACER_CAP_BLUETOOTH)) {
2169 rfkill_unregister(bluetooth_rfkill);
2170 rfkill_destroy(bluetooth_rfkill);
2171 }
2172error_bluetooth:
2173 if (has_cap(ACER_CAP_WIRELESS)) {
2174 rfkill_unregister(wireless_rfkill);
2175 rfkill_destroy(wireless_rfkill);
2176 }
2177error_wireless:
2178 return err;
2179}
2180
2181static void acer_rfkill_exit(void)
2182{
2183 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
2184 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
2185 cancel_delayed_work_sync(&acer_rfkill_work);
2186
2187 if (has_cap(ACER_CAP_WIRELESS)) {
2188 rfkill_unregister(wireless_rfkill);
2189 rfkill_destroy(wireless_rfkill);
2190 }
2191
2192 if (has_cap(ACER_CAP_BLUETOOTH)) {
2193 rfkill_unregister(bluetooth_rfkill);
2194 rfkill_destroy(bluetooth_rfkill);
2195 }
2196
2197 if (has_cap(ACER_CAP_THREEG)) {
2198 rfkill_unregister(threeg_rfkill);
2199 rfkill_destroy(threeg_rfkill);
2200 }
2201}
2202
2203static void acer_wmi_notify(u32 value, void *context)
2204{
2205 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
2206 union acpi_object *obj;
2207 struct event_return_value return_value;
2208 acpi_status status;
2209 u16 device_state;
2210 const struct key_entry *key;
2211 u32 scancode;
2212
2213 status = wmi_get_event_data(value, &response);
2214 if (status != AE_OK) {
2215 pr_warn("bad event status 0x%x\n", status);
2216 return;
2217 }
2218
2219 obj = (union acpi_object *)response.pointer;
2220
2221 if (!obj)
2222 return;
2223 if (obj->type != ACPI_TYPE_BUFFER) {
2224 pr_warn("Unknown response received %d\n", obj->type);
2225 kfree(obj);
2226 return;
2227 }
2228 if (obj->buffer.length != 8) {
2229 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2230 kfree(obj);
2231 return;
2232 }
2233
2234 return_value = *((struct event_return_value *)obj->buffer.pointer);
2235 kfree(obj);
2236
2237 switch (return_value.function) {
2238 case WMID_HOTKEY_EVENT:
2239 device_state = return_value.device_state;
2240 pr_debug("device state: 0x%x\n", device_state);
2241
2242 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
2243 return_value.key_num);
2244 if (!key) {
2245 pr_warn("Unknown key number - 0x%x\n",
2246 return_value.key_num);
2247 } else {
2248 scancode = return_value.key_num;
2249 switch (key->keycode) {
2250 case KEY_WLAN:
2251 case KEY_BLUETOOTH:
2252 if (has_cap(ACER_CAP_WIRELESS))
2253 rfkill_set_sw_state(wireless_rfkill,
2254 !(device_state & ACER_WMID3_GDS_WIRELESS));
2255 if (has_cap(ACER_CAP_THREEG))
2256 rfkill_set_sw_state(threeg_rfkill,
2257 !(device_state & ACER_WMID3_GDS_THREEG));
2258 if (has_cap(ACER_CAP_BLUETOOTH))
2259 rfkill_set_sw_state(bluetooth_rfkill,
2260 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
2261 break;
2262 case KEY_TOUCHPAD_TOGGLE:
2263 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
2264 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
2265 }
2266 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
2267 }
2268 break;
2269 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
2270 acer_gsensor_event();
2271 acer_kbd_dock_event(&return_value);
2272 break;
2273 case WMID_GAMING_TURBO_KEY_EVENT:
2274 if (return_value.key_num == 0x4)
2275 acer_toggle_turbo();
2276 if (return_value.key_num == 0x5 && has_cap(ACER_CAP_PLATFORM_PROFILE))
2277 acer_thermal_profile_change();
2278 break;
2279 default:
2280 pr_warn("Unknown function number - %d - %d\n",
2281 return_value.function, return_value.key_num);
2282 break;
2283 }
2284}
2285
2286static acpi_status __init
2287wmid3_set_function_mode(struct func_input_params *params,
2288 struct func_return_value *return_value)
2289{
2290 acpi_status status;
2291 union acpi_object *obj;
2292
2293 struct acpi_buffer input = { sizeof(struct func_input_params), params };
2294 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
2295
2296 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
2297 if (ACPI_FAILURE(status))
2298 return status;
2299
2300 obj = output.pointer;
2301
2302 if (!obj)
2303 return AE_ERROR;
2304 else if (obj->type != ACPI_TYPE_BUFFER) {
2305 kfree(obj);
2306 return AE_ERROR;
2307 }
2308 if (obj->buffer.length != 4) {
2309 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
2310 kfree(obj);
2311 return AE_ERROR;
2312 }
2313
2314 *return_value = *((struct func_return_value *)obj->buffer.pointer);
2315 kfree(obj);
2316
2317 return status;
2318}
2319
2320static int __init acer_wmi_enable_ec_raw(void)
2321{
2322 struct func_return_value return_value;
2323 acpi_status status;
2324 struct func_input_params params = {
2325 .function_num = 0x1,
2326 .commun_devices = 0xFFFF,
2327 .devices = 0xFFFF,
2328 .app_status = 0x00, /* Launch Manager Deactive */
2329 .app_mask = 0x01,
2330 };
2331
2332 status = wmid3_set_function_mode(¶ms, &return_value);
2333
2334 if (return_value.error_code || return_value.ec_return_value)
2335 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
2336 return_value.error_code,
2337 return_value.ec_return_value);
2338 else
2339 pr_info("Enabled EC raw mode\n");
2340
2341 return status;
2342}
2343
2344static int __init acer_wmi_enable_lm(void)
2345{
2346 struct func_return_value return_value;
2347 acpi_status status;
2348 struct func_input_params params = {
2349 .function_num = 0x1,
2350 .commun_devices = 0xFFFF,
2351 .devices = 0xFFFF,
2352 .app_status = 0x01, /* Launch Manager Active */
2353 .app_mask = 0x01,
2354 };
2355
2356 status = wmid3_set_function_mode(¶ms, &return_value);
2357
2358 if (return_value.error_code || return_value.ec_return_value)
2359 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
2360 return_value.error_code,
2361 return_value.ec_return_value);
2362
2363 return status;
2364}
2365
2366static int __init acer_wmi_enable_rf_button(void)
2367{
2368 struct func_return_value return_value;
2369 acpi_status status;
2370 struct func_input_params params = {
2371 .function_num = 0x1,
2372 .commun_devices = 0xFFFF,
2373 .devices = 0xFFFF,
2374 .app_status = 0x10, /* RF Button Active */
2375 .app_mask = 0x10,
2376 };
2377
2378 status = wmid3_set_function_mode(¶ms, &return_value);
2379
2380 if (return_value.error_code || return_value.ec_return_value)
2381 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
2382 return_value.error_code,
2383 return_value.ec_return_value);
2384
2385 return status;
2386}
2387
2388static int __init acer_wmi_accel_setup(void)
2389{
2390 struct acpi_device *adev;
2391 int err;
2392
2393 adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
2394 if (!adev)
2395 return -ENODEV;
2396
2397 gsensor_handle = acpi_device_handle(adev);
2398 acpi_dev_put(adev);
2399
2400 acer_wmi_accel_dev = input_allocate_device();
2401 if (!acer_wmi_accel_dev)
2402 return -ENOMEM;
2403
2404 acer_wmi_accel_dev->open = acer_gsensor_open;
2405
2406 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2407 acer_wmi_accel_dev->phys = "wmi/input1";
2408 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2409 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2410 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2411 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2412 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2413
2414 err = input_register_device(acer_wmi_accel_dev);
2415 if (err)
2416 goto err_free_dev;
2417
2418 return 0;
2419
2420err_free_dev:
2421 input_free_device(acer_wmi_accel_dev);
2422 return err;
2423}
2424
2425static int __init acer_wmi_input_setup(void)
2426{
2427 acpi_status status;
2428 int err;
2429
2430 acer_wmi_input_dev = input_allocate_device();
2431 if (!acer_wmi_input_dev)
2432 return -ENOMEM;
2433
2434 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2435 acer_wmi_input_dev->phys = "wmi/input0";
2436 acer_wmi_input_dev->id.bustype = BUS_HOST;
2437
2438 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2439 if (err)
2440 goto err_free_dev;
2441
2442 if (has_cap(ACER_CAP_KBD_DOCK))
2443 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2444
2445 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2446 acer_wmi_notify, NULL);
2447 if (ACPI_FAILURE(status)) {
2448 err = -EIO;
2449 goto err_free_dev;
2450 }
2451
2452 if (has_cap(ACER_CAP_KBD_DOCK))
2453 acer_kbd_dock_get_initial_state();
2454
2455 err = input_register_device(acer_wmi_input_dev);
2456 if (err)
2457 goto err_uninstall_notifier;
2458
2459 return 0;
2460
2461err_uninstall_notifier:
2462 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2463err_free_dev:
2464 input_free_device(acer_wmi_input_dev);
2465 return err;
2466}
2467
2468static void acer_wmi_input_destroy(void)
2469{
2470 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2471 input_unregister_device(acer_wmi_input_dev);
2472}
2473
2474/*
2475 * debugfs functions
2476 */
2477static u32 get_wmid_devices(void)
2478{
2479 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2480 union acpi_object *obj;
2481 acpi_status status;
2482 u32 devices = 0;
2483
2484 status = wmi_query_block(WMID_GUID2, 0, &out);
2485 if (ACPI_FAILURE(status))
2486 return 0;
2487
2488 obj = (union acpi_object *) out.pointer;
2489 if (obj) {
2490 if (obj->type == ACPI_TYPE_BUFFER &&
2491 (obj->buffer.length == sizeof(u32) ||
2492 obj->buffer.length == sizeof(u64))) {
2493 devices = *((u32 *) obj->buffer.pointer);
2494 } else if (obj->type == ACPI_TYPE_INTEGER) {
2495 devices = (u32) obj->integer.value;
2496 }
2497 }
2498
2499 kfree(out.pointer);
2500 return devices;
2501}
2502
2503static int acer_wmi_hwmon_init(void);
2504
2505/*
2506 * Platform device
2507 */
2508static int acer_platform_probe(struct platform_device *device)
2509{
2510 int err;
2511
2512 if (has_cap(ACER_CAP_MAILLED)) {
2513 err = acer_led_init(&device->dev);
2514 if (err)
2515 goto error_mailled;
2516 }
2517
2518 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2519 err = acer_backlight_init(&device->dev);
2520 if (err)
2521 goto error_brightness;
2522 }
2523
2524 err = acer_rfkill_init(&device->dev);
2525 if (err)
2526 goto error_rfkill;
2527
2528 if (has_cap(ACER_CAP_PLATFORM_PROFILE)) {
2529 err = acer_platform_profile_setup();
2530 if (err)
2531 goto error_platform_profile;
2532 }
2533
2534 if (has_cap(ACER_CAP_FAN_SPEED_READ)) {
2535 err = acer_wmi_hwmon_init();
2536 if (err)
2537 goto error_hwmon;
2538 }
2539
2540 return 0;
2541
2542error_hwmon:
2543 if (platform_profile_support)
2544 platform_profile_remove();
2545error_platform_profile:
2546 acer_rfkill_exit();
2547error_rfkill:
2548 if (has_cap(ACER_CAP_BRIGHTNESS))
2549 acer_backlight_exit();
2550error_brightness:
2551 if (has_cap(ACER_CAP_MAILLED))
2552 acer_led_exit();
2553error_mailled:
2554 return err;
2555}
2556
2557static void acer_platform_remove(struct platform_device *device)
2558{
2559 if (has_cap(ACER_CAP_MAILLED))
2560 acer_led_exit();
2561 if (has_cap(ACER_CAP_BRIGHTNESS))
2562 acer_backlight_exit();
2563
2564 acer_rfkill_exit();
2565
2566 if (platform_profile_support)
2567 platform_profile_remove();
2568}
2569
2570#ifdef CONFIG_PM_SLEEP
2571static int acer_suspend(struct device *dev)
2572{
2573 u32 value;
2574 struct acer_data *data = &interface->data;
2575
2576 if (!data)
2577 return -ENOMEM;
2578
2579 if (has_cap(ACER_CAP_MAILLED)) {
2580 get_u32(&value, ACER_CAP_MAILLED);
2581 set_u32(LED_OFF, ACER_CAP_MAILLED);
2582 data->mailled = value;
2583 }
2584
2585 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2586 get_u32(&value, ACER_CAP_BRIGHTNESS);
2587 data->brightness = value;
2588 }
2589
2590 return 0;
2591}
2592
2593static int acer_resume(struct device *dev)
2594{
2595 struct acer_data *data = &interface->data;
2596
2597 if (!data)
2598 return -ENOMEM;
2599
2600 if (has_cap(ACER_CAP_MAILLED))
2601 set_u32(data->mailled, ACER_CAP_MAILLED);
2602
2603 if (has_cap(ACER_CAP_BRIGHTNESS))
2604 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2605
2606 if (acer_wmi_accel_dev)
2607 acer_gsensor_init();
2608
2609 return 0;
2610}
2611#else
2612#define acer_suspend NULL
2613#define acer_resume NULL
2614#endif
2615
2616static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2617
2618static void acer_platform_shutdown(struct platform_device *device)
2619{
2620 struct acer_data *data = &interface->data;
2621
2622 if (!data)
2623 return;
2624
2625 if (has_cap(ACER_CAP_MAILLED))
2626 set_u32(LED_OFF, ACER_CAP_MAILLED);
2627}
2628
2629static struct platform_driver acer_platform_driver = {
2630 .driver = {
2631 .name = "acer-wmi",
2632 .pm = &acer_pm,
2633 },
2634 .probe = acer_platform_probe,
2635 .remove_new = acer_platform_remove,
2636 .shutdown = acer_platform_shutdown,
2637};
2638
2639static struct platform_device *acer_platform_device;
2640
2641static void remove_debugfs(void)
2642{
2643 debugfs_remove_recursive(interface->debug.root);
2644}
2645
2646static void __init create_debugfs(void)
2647{
2648 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2649
2650 debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
2651 &interface->debug.wmid_devices);
2652}
2653
2654static umode_t acer_wmi_hwmon_is_visible(const void *data,
2655 enum hwmon_sensor_types type, u32 attr,
2656 int channel)
2657{
2658 switch (type) {
2659 case hwmon_fan:
2660 if (acer_get_fan_speed(channel) >= 0)
2661 return 0444;
2662 break;
2663 default:
2664 return 0;
2665 }
2666
2667 return 0;
2668}
2669
2670static int acer_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
2671 u32 attr, int channel, long *val)
2672{
2673 int ret;
2674
2675 switch (type) {
2676 case hwmon_fan:
2677 ret = acer_get_fan_speed(channel);
2678 if (ret < 0)
2679 return ret;
2680 *val = ret;
2681 break;
2682 default:
2683 return -EOPNOTSUPP;
2684 }
2685
2686 return 0;
2687}
2688
2689static const struct hwmon_channel_info *const acer_wmi_hwmon_info[] = {
2690 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT), NULL
2691};
2692
2693static const struct hwmon_ops acer_wmi_hwmon_ops = {
2694 .read = acer_wmi_hwmon_read,
2695 .is_visible = acer_wmi_hwmon_is_visible,
2696};
2697
2698static const struct hwmon_chip_info acer_wmi_hwmon_chip_info = {
2699 .ops = &acer_wmi_hwmon_ops,
2700 .info = acer_wmi_hwmon_info,
2701};
2702
2703static int acer_wmi_hwmon_init(void)
2704{
2705 struct device *dev = &acer_platform_device->dev;
2706 struct device *hwmon;
2707
2708 hwmon = devm_hwmon_device_register_with_info(dev, "acer",
2709 &acer_platform_driver,
2710 &acer_wmi_hwmon_chip_info,
2711 NULL);
2712
2713 if (IS_ERR(hwmon)) {
2714 dev_err(dev, "Could not register acer hwmon device\n");
2715 return PTR_ERR(hwmon);
2716 }
2717
2718 return 0;
2719}
2720
2721static int __init acer_wmi_init(void)
2722{
2723 int err;
2724
2725 pr_info("Acer Laptop ACPI-WMI Extras\n");
2726
2727 if (dmi_check_system(acer_blacklist)) {
2728 pr_info("Blacklisted hardware detected - not loading\n");
2729 return -ENODEV;
2730 }
2731
2732 find_quirks();
2733
2734 /*
2735 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2736 * machines like Lenovo, Fujitsu and Medion. In the past days,
2737 * acer-wmi driver handled those non-Acer machines by quirks list.
2738 * But actually acer-wmi driver was loaded on any machines that have
2739 * AMW0_GUID1. This behavior is strange because those machines should
2740 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2741 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2742 * should be in Acer/Gateway/Packard Bell white list, or it's already
2743 * in the past quirk list.
2744 */
2745 if (wmi_has_guid(AMW0_GUID1) &&
2746 !dmi_check_system(amw0_whitelist) &&
2747 quirks == &quirk_unknown) {
2748 pr_debug("Unsupported machine has AMW0_GUID1, unable to load\n");
2749 return -ENODEV;
2750 }
2751
2752 /*
2753 * Detect which ACPI-WMI interface we're using.
2754 */
2755 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2756 interface = &AMW0_V2_interface;
2757
2758 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2759 interface = &wmid_interface;
2760
2761 if (wmi_has_guid(WMID_GUID3))
2762 interface = &wmid_v2_interface;
2763
2764 if (interface)
2765 dmi_walk(type_aa_dmi_decode, NULL);
2766
2767 if (wmi_has_guid(WMID_GUID2) && interface) {
2768 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2769 pr_err("Unable to detect available WMID devices\n");
2770 return -ENODEV;
2771 }
2772 /* WMID always provides brightness methods */
2773 interface->capability |= ACER_CAP_BRIGHTNESS;
2774 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2775 pr_err("No WMID device detection method found\n");
2776 return -ENODEV;
2777 }
2778
2779 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2780 interface = &AMW0_interface;
2781
2782 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2783 pr_err("Unable to detect available AMW0 devices\n");
2784 return -ENODEV;
2785 }
2786 }
2787
2788 if (wmi_has_guid(AMW0_GUID1))
2789 AMW0_find_mailled();
2790
2791 if (!interface) {
2792 pr_err("No or unsupported WMI interface, unable to load\n");
2793 return -ENODEV;
2794 }
2795
2796 set_quirks();
2797
2798 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2799 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2800
2801 if (wmi_has_guid(WMID_GUID3))
2802 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2803
2804 if (force_caps != -1)
2805 interface->capability = force_caps;
2806
2807 if (wmi_has_guid(WMID_GUID3) &&
2808 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2809 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2810 pr_warn("Cannot enable RF Button Driver\n");
2811
2812 if (ec_raw_mode) {
2813 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2814 pr_err("Cannot enable EC raw mode\n");
2815 return -ENODEV;
2816 }
2817 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2818 pr_err("Cannot enable Launch Manager mode\n");
2819 return -ENODEV;
2820 }
2821 } else if (ec_raw_mode) {
2822 pr_info("No WMID EC raw mode enable method\n");
2823 }
2824
2825 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2826 err = acer_wmi_input_setup();
2827 if (err)
2828 return err;
2829 err = acer_wmi_accel_setup();
2830 if (err && err != -ENODEV)
2831 pr_warn("Cannot enable accelerometer\n");
2832 }
2833
2834 err = platform_driver_register(&acer_platform_driver);
2835 if (err) {
2836 pr_err("Unable to register platform driver\n");
2837 goto error_platform_register;
2838 }
2839
2840 acer_platform_device = platform_device_alloc("acer-wmi", PLATFORM_DEVID_NONE);
2841 if (!acer_platform_device) {
2842 err = -ENOMEM;
2843 goto error_device_alloc;
2844 }
2845
2846 err = platform_device_add(acer_platform_device);
2847 if (err)
2848 goto error_device_add;
2849
2850 if (wmi_has_guid(WMID_GUID2)) {
2851 interface->debug.wmid_devices = get_wmid_devices();
2852 create_debugfs();
2853 }
2854
2855 /* Override any initial settings with values from the commandline */
2856 acer_commandline_init();
2857
2858 return 0;
2859
2860error_device_add:
2861 platform_device_put(acer_platform_device);
2862error_device_alloc:
2863 platform_driver_unregister(&acer_platform_driver);
2864error_platform_register:
2865 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2866 acer_wmi_input_destroy();
2867 if (acer_wmi_accel_dev)
2868 input_unregister_device(acer_wmi_accel_dev);
2869
2870 return err;
2871}
2872
2873static void __exit acer_wmi_exit(void)
2874{
2875 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2876 acer_wmi_input_destroy();
2877
2878 if (acer_wmi_accel_dev)
2879 input_unregister_device(acer_wmi_accel_dev);
2880
2881 remove_debugfs();
2882 platform_device_unregister(acer_platform_device);
2883 platform_driver_unregister(&acer_platform_driver);
2884
2885 pr_info("Acer Laptop WMI Extras unloaded\n");
2886}
2887
2888module_init(acer_wmi_init);
2889module_exit(acer_wmi_exit);