2 * Acer WMI Laptop Extras
4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
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.
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.
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
25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
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 #include <acpi/video.h>
46 ACPI_MODULE_NAME(KBUILD_MODNAME);
47 MODULE_AUTHOR("Carlos Corbacho");
48 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
49 MODULE_LICENSE("GPL");
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)
56 #define ACER_AMW0_WRITE 0x9610
59 * Bit masks for the AMW0 interface
61 #define ACER_AMW0_WIRELESS_MASK 0x35
62 #define ACER_AMW0_BLUETOOTH_MASK 0x34
63 #define ACER_AMW0_MAILLED_MASK 0x31
66 * Method IDs for WMID interface
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
78 * Acer ACPI method GUIDs
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"
87 * Acer ACPI event GUIDs
89 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
91 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
92 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
93 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
95 enum acer_wmi_event_ids {
96 WMID_HOTKEY_EVENT = 0x1,
97 WMID_ACCEL_OR_KBD_DOCK_EVENT = 0x5,
100 static const struct key_entry acer_wmi_keymap[] __initconst = {
101 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
102 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
104 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
105 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
106 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
107 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
108 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
109 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
110 {KE_IGNORE, 0x41, {KEY_MUTE} },
111 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
113 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
115 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
117 {KE_IGNORE, 0x45, {KEY_STOP} },
118 {KE_IGNORE, 0x50, {KEY_STOP} },
119 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
120 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
122 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
123 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
124 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
125 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
126 {KE_IGNORE, 0x81, {KEY_SLEEP} },
127 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
128 {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */
129 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
130 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
131 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
132 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
133 {KE_KEY, 0x86, {KEY_WLAN} },
137 static struct input_dev *acer_wmi_input_dev;
138 static struct input_dev *acer_wmi_accel_dev;
140 struct event_return_value {
147 } __attribute__((packed));
150 * GUID3 Get Device Status device flags
152 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
153 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
154 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
155 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
156 #define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */
158 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
160 /* Hotkey Customized Setting and Acer Application Status.
161 * Set Device Default Value and Report Acer Application Status.
162 * When Acer Application starts, it will run this method to inform
163 * BIOS/EC that Acer Application is on.
165 * Bit[0]: Launch Manager Status
167 * Bit[2]: Device Control Status
168 * Bit[3]: Acer Power Button Utility Status
169 * Bit[4]: RF Button Status
170 * Bit[5]: ODD PM Status
171 * Bit[6]: Device Default Value Control
172 * Bit[7]: Hall Sensor Application Status
174 struct func_input_params {
175 u8 function_num; /* Function Number */
176 u16 commun_devices; /* Communication type devices default status */
177 u16 devices; /* Other type devices default status */
178 u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
179 u8 app_mask; /* Bit mask to app_status */
181 } __attribute__((packed));
183 struct func_return_value {
184 u8 error_code; /* Error Code */
185 u8 ec_return_value; /* EC Return Value */
187 } __attribute__((packed));
189 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
190 u8 function_num; /* Function Number */
191 u8 hotkey_number; /* Hotkey Number */
192 u16 devices; /* Set Device */
193 u8 volume_value; /* Volume Value */
194 } __attribute__((packed));
196 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
197 u8 function_num; /* Function Number */
198 u8 hotkey_number; /* Hotkey Number */
199 u16 devices; /* Get Device */
200 } __attribute__((packed));
202 struct wmid3_gds_return_value { /* Get Device Status return value*/
203 u8 error_code; /* Error Code */
204 u8 ec_return_value; /* EC Return Value */
205 u16 devices; /* Current Device Status */
207 } __attribute__((packed));
209 struct hotkey_function_type_aa {
213 u16 commun_func_bitmap;
214 u16 application_func_bitmap;
215 u16 media_func_bitmap;
216 u16 display_func_bitmap;
217 u16 others_func_bitmap;
218 u8 commun_fn_key_number;
219 } __attribute__((packed));
222 * Interface capability flags
224 #define ACER_CAP_MAILLED BIT(0)
225 #define ACER_CAP_WIRELESS BIT(1)
226 #define ACER_CAP_BLUETOOTH BIT(2)
227 #define ACER_CAP_BRIGHTNESS BIT(3)
228 #define ACER_CAP_THREEG BIT(4)
229 #define ACER_CAP_SET_FUNCTION_MODE BIT(5)
230 #define ACER_CAP_KBD_DOCK BIT(6)
233 * Interface type flags
235 enum interface_flags {
242 #define ACER_DEFAULT_WIRELESS 0
243 #define ACER_DEFAULT_BLUETOOTH 0
244 #define ACER_DEFAULT_MAILLED 0
245 #define ACER_DEFAULT_THREEG 0
247 static int max_brightness = 0xF;
249 static int mailled = -1;
250 static int brightness = -1;
251 static int threeg = -1;
252 static int force_series;
253 static int force_caps = -1;
254 static bool ec_raw_mode;
255 static bool has_type_aa;
256 static u16 commun_func_bitmap;
257 static u8 commun_fn_key_number;
259 module_param(mailled, int, 0444);
260 module_param(brightness, int, 0444);
261 module_param(threeg, int, 0444);
262 module_param(force_series, int, 0444);
263 module_param(force_caps, int, 0444);
264 module_param(ec_raw_mode, bool, 0444);
265 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
266 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
267 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
268 MODULE_PARM_DESC(force_series, "Force a different laptop series");
269 MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
270 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
280 struct dentry *devices;
284 static struct rfkill *wireless_rfkill;
285 static struct rfkill *bluetooth_rfkill;
286 static struct rfkill *threeg_rfkill;
287 static bool rfkill_inited;
289 /* Each low-level interface must define at least some of the following */
290 struct wmi_interface {
291 /* The WMI device type */
294 /* The capabilities this interface provides */
297 /* Private data for the current interface */
298 struct acer_data data;
300 /* debugfs entries associated with this interface */
301 struct acer_debug debug;
304 /* The static interface pointer, points to the currently detected interface */
305 static struct wmi_interface *interface;
308 * Embedded Controller quirks
309 * Some laptops require us to directly access the EC to either enable or query
310 * features that are not available through WMI.
320 static struct quirk_entry *quirks;
322 static void __init set_quirks(void)
328 interface->capability |= ACER_CAP_MAILLED;
330 if (quirks->brightness)
331 interface->capability |= ACER_CAP_BRIGHTNESS;
334 static int __init dmi_matched(const struct dmi_system_id *dmi)
336 quirks = dmi->driver_data;
340 static int __init set_force_caps(const struct dmi_system_id *dmi)
342 if (force_caps == -1) {
343 force_caps = (uintptr_t)dmi->driver_data;
344 pr_info("Found %s, set force_caps to 0x%x\n", dmi->ident, force_caps);
349 static struct quirk_entry quirk_unknown = {
352 static struct quirk_entry quirk_acer_aspire_1520 = {
356 static struct quirk_entry quirk_acer_travelmate_2490 = {
360 /* This AMW0 laptop has no bluetooth */
361 static struct quirk_entry quirk_medion_md_98300 = {
365 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
369 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
373 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
374 static const struct dmi_system_id acer_blacklist[] __initconst = {
376 .ident = "Acer Aspire One (SSD)",
378 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
379 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
383 .ident = "Acer Aspire One (HDD)",
385 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
386 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
392 static const struct dmi_system_id amw0_whitelist[] __initconst = {
396 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
402 DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
406 .ident = "Packard Bell",
408 DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
415 * This quirk table is only for Acer/Gateway/Packard Bell family
416 * that those machines are supported by acer-wmi driver.
418 static const struct dmi_system_id acer_quirks[] __initconst = {
420 .callback = dmi_matched,
421 .ident = "Acer Aspire 1360",
423 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
424 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
426 .driver_data = &quirk_acer_aspire_1520,
429 .callback = dmi_matched,
430 .ident = "Acer Aspire 1520",
432 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
433 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
435 .driver_data = &quirk_acer_aspire_1520,
438 .callback = dmi_matched,
439 .ident = "Acer Aspire 3100",
441 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
442 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
444 .driver_data = &quirk_acer_travelmate_2490,
447 .callback = dmi_matched,
448 .ident = "Acer Aspire 3610",
450 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
451 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
453 .driver_data = &quirk_acer_travelmate_2490,
456 .callback = dmi_matched,
457 .ident = "Acer Aspire 5100",
459 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
460 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
462 .driver_data = &quirk_acer_travelmate_2490,
465 .callback = dmi_matched,
466 .ident = "Acer Aspire 5610",
468 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
469 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
471 .driver_data = &quirk_acer_travelmate_2490,
474 .callback = dmi_matched,
475 .ident = "Acer Aspire 5630",
477 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
478 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
480 .driver_data = &quirk_acer_travelmate_2490,
483 .callback = dmi_matched,
484 .ident = "Acer Aspire 5650",
486 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
487 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
489 .driver_data = &quirk_acer_travelmate_2490,
492 .callback = dmi_matched,
493 .ident = "Acer Aspire 5680",
495 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
496 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
498 .driver_data = &quirk_acer_travelmate_2490,
501 .callback = dmi_matched,
502 .ident = "Acer Aspire 9110",
504 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
505 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
507 .driver_data = &quirk_acer_travelmate_2490,
510 .callback = dmi_matched,
511 .ident = "Acer TravelMate 2490",
513 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
514 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
516 .driver_data = &quirk_acer_travelmate_2490,
519 .callback = dmi_matched,
520 .ident = "Acer TravelMate 4200",
522 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
523 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
525 .driver_data = &quirk_acer_travelmate_2490,
528 .callback = set_force_caps,
529 .ident = "Acer Aspire Switch 10E SW3-016",
531 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
532 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW3-016"),
534 .driver_data = (void *)ACER_CAP_KBD_DOCK,
537 .callback = set_force_caps,
538 .ident = "Acer Aspire Switch 10 SW5-012",
540 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
541 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
543 .driver_data = (void *)ACER_CAP_KBD_DOCK,
546 .callback = set_force_caps,
547 .ident = "Acer One 10 (S1003)",
549 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
550 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
552 .driver_data = (void *)ACER_CAP_KBD_DOCK,
558 * This quirk list is for those non-acer machines that have AMW0_GUID1
559 * but supported by acer-wmi in past days. Keeping this quirk list here
560 * is only for backward compatible. Please do not add new machine to
561 * here anymore. Those non-acer machines should be supported by
562 * appropriate wmi drivers.
564 static const struct dmi_system_id non_acer_quirks[] __initconst = {
566 .callback = dmi_matched,
567 .ident = "Fujitsu Siemens Amilo Li 1718",
569 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
570 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
572 .driver_data = &quirk_fujitsu_amilo_li_1718,
575 .callback = dmi_matched,
576 .ident = "Medion MD 98300",
578 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
581 .driver_data = &quirk_medion_md_98300,
584 .callback = dmi_matched,
585 .ident = "Lenovo Ideapad S205",
587 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
588 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
590 .driver_data = &quirk_lenovo_ideapad_s205,
593 .callback = dmi_matched,
594 .ident = "Lenovo Ideapad S205 (Brazos)",
596 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
597 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
599 .driver_data = &quirk_lenovo_ideapad_s205,
602 .callback = dmi_matched,
603 .ident = "Lenovo 3000 N200",
605 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
606 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
608 .driver_data = &quirk_fujitsu_amilo_li_1718,
611 .callback = dmi_matched,
612 .ident = "Lenovo Ideapad S205-10382JG",
614 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
615 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
617 .driver_data = &quirk_lenovo_ideapad_s205,
620 .callback = dmi_matched,
621 .ident = "Lenovo Ideapad S205-1038DPG",
623 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
624 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
626 .driver_data = &quirk_lenovo_ideapad_s205,
632 video_set_backlight_video_vendor(const struct dmi_system_id *d)
634 interface->capability &= ~ACER_CAP_BRIGHTNESS;
635 pr_info("Brightness must be controlled by generic video driver\n");
639 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
641 .callback = video_set_backlight_video_vendor,
642 .ident = "Acer TravelMate 4750",
644 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
645 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
649 .callback = video_set_backlight_video_vendor,
650 .ident = "Acer Extensa 5235",
652 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
653 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
657 .callback = video_set_backlight_video_vendor,
658 .ident = "Acer TravelMate 5760",
660 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
661 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
665 .callback = video_set_backlight_video_vendor,
666 .ident = "Acer Aspire 5750",
668 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
669 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
673 .callback = video_set_backlight_video_vendor,
674 .ident = "Acer Aspire 5741",
676 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
677 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
682 * Note no video_set_backlight_video_vendor, we must use the
683 * acer interface, as there is no native backlight interface.
685 .ident = "Acer KAV80",
687 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
688 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
694 /* Find which quirks are needed for a particular vendor/ model pair */
695 static void __init find_quirks(void)
698 dmi_check_system(acer_quirks);
699 dmi_check_system(non_acer_quirks);
700 } else if (force_series == 2490) {
701 quirks = &quirk_acer_travelmate_2490;
705 quirks = &quirk_unknown;
711 * General interface convenience methods
714 static bool has_cap(u32 cap)
716 if ((interface->capability & cap) != 0)
723 * AMW0 (V1) interface
740 static acpi_status wmab_execute(struct wmab_args *regbuf,
741 struct acpi_buffer *result)
743 struct acpi_buffer input;
745 input.length = sizeof(struct wmab_args);
746 input.pointer = (u8 *)regbuf;
748 status = wmi_evaluate_method(AMW0_GUID1, 0, 1, &input, result);
753 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
759 case ACER_CAP_MAILLED:
760 switch (quirks->mailled) {
762 err = ec_read(0xA, &result);
765 *value = (result >> 7) & 0x1;
769 case ACER_CAP_WIRELESS:
770 switch (quirks->wireless) {
772 err = ec_read(0x7B, &result);
775 *value = result & 0x1;
778 err = ec_read(0x71, &result);
781 *value = result & 0x1;
784 err = ec_read(0x78, &result);
787 *value = result & 0x1;
790 err = ec_read(0xA, &result);
793 *value = (result >> 2) & 0x1;
797 case ACER_CAP_BLUETOOTH:
798 switch (quirks->bluetooth) {
800 err = ec_read(0xA, &result);
803 *value = (result >> 4) & 0x1;
807 case ACER_CAP_BRIGHTNESS:
808 switch (quirks->brightness) {
810 err = ec_read(0x83, &result);
823 static acpi_status AMW0_set_u32(u32 value, u32 cap)
825 struct wmab_args args;
827 args.eax = ACER_AMW0_WRITE;
828 args.ebx = value ? (1<<8) : 0;
829 args.ecx = args.edx = 0;
832 case ACER_CAP_MAILLED:
834 return AE_BAD_PARAMETER;
835 args.ebx |= ACER_AMW0_MAILLED_MASK;
837 case ACER_CAP_WIRELESS:
839 return AE_BAD_PARAMETER;
840 args.ebx |= ACER_AMW0_WIRELESS_MASK;
842 case ACER_CAP_BLUETOOTH:
844 return AE_BAD_PARAMETER;
845 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
847 case ACER_CAP_BRIGHTNESS:
848 if (value > max_brightness)
849 return AE_BAD_PARAMETER;
850 switch (quirks->brightness) {
852 return ec_write(0x83, value);
859 /* Actually do the set */
860 return wmab_execute(&args, NULL);
863 static acpi_status __init AMW0_find_mailled(void)
865 struct wmab_args args;
867 acpi_status status = AE_OK;
868 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
869 union acpi_object *obj;
872 args.ebx = args.ecx = args.edx = 0;
874 status = wmab_execute(&args, &out);
875 if (ACPI_FAILURE(status))
878 obj = (union acpi_object *) out.pointer;
879 if (obj && obj->type == ACPI_TYPE_BUFFER &&
880 obj->buffer.length == sizeof(struct wmab_ret)) {
881 ret = *((struct wmab_ret *) obj->buffer.pointer);
888 interface->capability |= ACER_CAP_MAILLED;
895 static const struct acpi_device_id norfkill_ids[] __initconst = {
899 { "SNY5001", 0}, /* sony-laptop in charge */
904 static int __init AMW0_set_cap_acpi_check_device(void)
906 const struct acpi_device_id *id;
908 for (id = norfkill_ids; id->id[0]; id++)
909 if (acpi_dev_found(id->id))
915 static acpi_status __init AMW0_set_capabilities(void)
917 struct wmab_args args;
920 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
921 union acpi_object *obj;
924 * On laptops with this strange GUID (non Acer), normal probing doesn't
927 if (wmi_has_guid(AMW0_GUID2)) {
928 if ((quirks != &quirk_unknown) ||
929 !AMW0_set_cap_acpi_check_device())
930 interface->capability |= ACER_CAP_WIRELESS;
934 args.eax = ACER_AMW0_WRITE;
935 args.ecx = args.edx = 0;
937 args.ebx = 0xa2 << 8;
938 args.ebx |= ACER_AMW0_WIRELESS_MASK;
940 status = wmab_execute(&args, &out);
941 if (ACPI_FAILURE(status))
945 if (obj && obj->type == ACPI_TYPE_BUFFER &&
946 obj->buffer.length == sizeof(struct wmab_ret)) {
947 ret = *((struct wmab_ret *) obj->buffer.pointer);
954 interface->capability |= ACER_CAP_WIRELESS;
957 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
960 * It's ok to use existing buffer for next wmab_execute call.
961 * But we need to kfree(out.pointer) if next wmab_execute fail.
963 status = wmab_execute(&args, &out);
964 if (ACPI_FAILURE(status))
967 obj = (union acpi_object *) out.pointer;
968 if (obj && obj->type == ACPI_TYPE_BUFFER
969 && obj->buffer.length == sizeof(struct wmab_ret)) {
970 ret = *((struct wmab_ret *) obj->buffer.pointer);
977 interface->capability |= ACER_CAP_BLUETOOTH;
980 * This appears to be safe to enable, since all Wistron based laptops
981 * appear to use the same EC register for brightness, even if they
982 * differ for wireless, etc
984 if (quirks->brightness >= 0)
985 interface->capability |= ACER_CAP_BRIGHTNESS;
993 static struct wmi_interface AMW0_interface = {
997 static struct wmi_interface AMW0_V2_interface = {
998 .type = ACER_AMW0_V2,
1002 * New interface (The WMID interface)
1005 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
1007 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
1008 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
1009 union acpi_object *obj;
1013 status = wmi_evaluate_method(WMID_GUID1, 0, method_id, &input, &result);
1015 if (ACPI_FAILURE(status))
1018 obj = (union acpi_object *) result.pointer;
1020 if (obj->type == ACPI_TYPE_BUFFER &&
1021 (obj->buffer.length == sizeof(u32) ||
1022 obj->buffer.length == sizeof(u64))) {
1023 tmp = *((u32 *) obj->buffer.pointer);
1024 } else if (obj->type == ACPI_TYPE_INTEGER) {
1025 tmp = (u32) obj->integer.value;
1032 kfree(result.pointer);
1037 static acpi_status WMID_get_u32(u32 *value, u32 cap)
1041 u32 result, method_id = 0;
1044 case ACER_CAP_WIRELESS:
1045 method_id = ACER_WMID_GET_WIRELESS_METHODID;
1047 case ACER_CAP_BLUETOOTH:
1048 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
1050 case ACER_CAP_BRIGHTNESS:
1051 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
1053 case ACER_CAP_THREEG:
1054 method_id = ACER_WMID_GET_THREEG_METHODID;
1056 case ACER_CAP_MAILLED:
1057 if (quirks->mailled == 1) {
1058 ec_read(0x9f, &tmp);
1065 status = WMI_execute_u32(method_id, 0, &result);
1067 if (ACPI_SUCCESS(status))
1068 *value = (u8)result;
1073 static acpi_status WMID_set_u32(u32 value, u32 cap)
1079 case ACER_CAP_BRIGHTNESS:
1080 if (value > max_brightness)
1081 return AE_BAD_PARAMETER;
1082 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
1084 case ACER_CAP_WIRELESS:
1086 return AE_BAD_PARAMETER;
1087 method_id = ACER_WMID_SET_WIRELESS_METHODID;
1089 case ACER_CAP_BLUETOOTH:
1091 return AE_BAD_PARAMETER;
1092 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1094 case ACER_CAP_THREEG:
1096 return AE_BAD_PARAMETER;
1097 method_id = ACER_WMID_SET_THREEG_METHODID;
1099 case ACER_CAP_MAILLED:
1101 return AE_BAD_PARAMETER;
1102 if (quirks->mailled == 1) {
1103 param = value ? 0x92 : 0x93;
1105 i8042_command(¶m, 0x1059);
1106 i8042_unlock_chip();
1113 return WMI_execute_u32(method_id, (u32)value, NULL);
1116 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1118 struct wmid3_gds_return_value return_value;
1120 union acpi_object *obj;
1121 struct wmid3_gds_get_input_param params = {
1122 .function_num = 0x1,
1123 .hotkey_number = commun_fn_key_number,
1126 struct acpi_buffer input = {
1127 sizeof(struct wmid3_gds_get_input_param),
1130 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1132 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1133 if (ACPI_FAILURE(status))
1136 obj = output.pointer;
1140 else if (obj->type != ACPI_TYPE_BUFFER) {
1144 if (obj->buffer.length != 8) {
1145 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1150 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1153 if (return_value.error_code || return_value.ec_return_value)
1154 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1156 return_value.error_code,
1157 return_value.ec_return_value);
1159 *value = !!(return_value.devices & device);
1164 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1169 case ACER_CAP_WIRELESS:
1170 device = ACER_WMID3_GDS_WIRELESS;
1172 case ACER_CAP_BLUETOOTH:
1173 device = ACER_WMID3_GDS_BLUETOOTH;
1175 case ACER_CAP_THREEG:
1176 device = ACER_WMID3_GDS_THREEG;
1181 return wmid3_get_device_status(value, device);
1184 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1186 struct wmid3_gds_return_value return_value;
1188 union acpi_object *obj;
1190 struct wmid3_gds_get_input_param get_params = {
1191 .function_num = 0x1,
1192 .hotkey_number = commun_fn_key_number,
1193 .devices = commun_func_bitmap,
1195 struct acpi_buffer get_input = {
1196 sizeof(struct wmid3_gds_get_input_param),
1199 struct wmid3_gds_set_input_param set_params = {
1200 .function_num = 0x2,
1201 .hotkey_number = commun_fn_key_number,
1202 .devices = commun_func_bitmap,
1204 struct acpi_buffer set_input = {
1205 sizeof(struct wmid3_gds_set_input_param),
1208 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1209 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1211 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1212 if (ACPI_FAILURE(status))
1215 obj = output.pointer;
1219 else if (obj->type != ACPI_TYPE_BUFFER) {
1223 if (obj->buffer.length != 8) {
1224 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1229 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1232 if (return_value.error_code || return_value.ec_return_value) {
1233 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1234 return_value.error_code,
1235 return_value.ec_return_value);
1239 devices = return_value.devices;
1240 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1242 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1243 if (ACPI_FAILURE(status))
1246 obj = output2.pointer;
1250 else if (obj->type != ACPI_TYPE_BUFFER) {
1254 if (obj->buffer.length != 4) {
1255 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1260 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1263 if (return_value.error_code || return_value.ec_return_value)
1264 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1265 return_value.error_code,
1266 return_value.ec_return_value);
1271 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1276 case ACER_CAP_WIRELESS:
1277 device = ACER_WMID3_GDS_WIRELESS;
1279 case ACER_CAP_BLUETOOTH:
1280 device = ACER_WMID3_GDS_BLUETOOTH;
1282 case ACER_CAP_THREEG:
1283 device = ACER_WMID3_GDS_THREEG;
1288 return wmid3_set_device_status(value, device);
1291 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1293 struct hotkey_function_type_aa *type_aa;
1295 /* We are looking for OEM-specific Type AAh */
1296 if (header->type != 0xAA)
1300 type_aa = (struct hotkey_function_type_aa *) header;
1302 pr_info("Function bitmap for Communication Button: 0x%x\n",
1303 type_aa->commun_func_bitmap);
1304 commun_func_bitmap = type_aa->commun_func_bitmap;
1306 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1307 interface->capability |= ACER_CAP_WIRELESS;
1308 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1309 interface->capability |= ACER_CAP_THREEG;
1310 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1311 interface->capability |= ACER_CAP_BLUETOOTH;
1312 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN)
1313 commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN;
1315 commun_fn_key_number = type_aa->commun_fn_key_number;
1318 static acpi_status __init WMID_set_capabilities(void)
1320 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1321 union acpi_object *obj;
1325 status = wmi_query_block(WMID_GUID2, 0, &out);
1326 if (ACPI_FAILURE(status))
1329 obj = (union acpi_object *) out.pointer;
1331 if (obj->type == ACPI_TYPE_BUFFER &&
1332 (obj->buffer.length == sizeof(u32) ||
1333 obj->buffer.length == sizeof(u64))) {
1334 devices = *((u32 *) obj->buffer.pointer);
1335 } else if (obj->type == ACPI_TYPE_INTEGER) {
1336 devices = (u32) obj->integer.value;
1346 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1348 interface->capability |= ACER_CAP_WIRELESS;
1350 interface->capability |= ACER_CAP_THREEG;
1352 interface->capability |= ACER_CAP_BLUETOOTH;
1354 if (!(devices & 0x20))
1355 max_brightness = 0x9;
1361 static struct wmi_interface wmid_interface = {
1365 static struct wmi_interface wmid_v2_interface = {
1366 .type = ACER_WMID_v2,
1370 * Generic Device (interface-independent)
1373 static acpi_status get_u32(u32 *value, u32 cap)
1375 acpi_status status = AE_ERROR;
1377 switch (interface->type) {
1379 status = AMW0_get_u32(value, cap);
1382 if (cap == ACER_CAP_MAILLED) {
1383 status = AMW0_get_u32(value, cap);
1387 status = WMID_get_u32(value, cap);
1390 if (cap & (ACER_CAP_WIRELESS |
1391 ACER_CAP_BLUETOOTH |
1393 status = wmid_v2_get_u32(value, cap);
1394 else if (wmi_has_guid(WMID_GUID2))
1395 status = WMID_get_u32(value, cap);
1402 static acpi_status set_u32(u32 value, u32 cap)
1406 if (interface->capability & cap) {
1407 switch (interface->type) {
1409 return AMW0_set_u32(value, cap);
1411 if (cap == ACER_CAP_MAILLED)
1412 return AMW0_set_u32(value, cap);
1415 * On some models, some WMID methods don't toggle
1416 * properly. For those cases, we want to run the AMW0
1417 * method afterwards to be certain we've really toggled
1420 if (cap == ACER_CAP_WIRELESS ||
1421 cap == ACER_CAP_BLUETOOTH) {
1422 status = WMID_set_u32(value, cap);
1423 if (ACPI_FAILURE(status))
1426 return AMW0_set_u32(value, cap);
1429 return WMID_set_u32(value, cap);
1431 if (cap & (ACER_CAP_WIRELESS |
1432 ACER_CAP_BLUETOOTH |
1434 return wmid_v2_set_u32(value, cap);
1435 else if (wmi_has_guid(WMID_GUID2))
1436 return WMID_set_u32(value, cap);
1438 return AE_BAD_PARAMETER;
1441 return AE_BAD_PARAMETER;
1444 static void __init acer_commandline_init(void)
1447 * These will all fail silently if the value given is invalid, or the
1448 * capability isn't available on the given interface
1451 set_u32(mailled, ACER_CAP_MAILLED);
1452 if (!has_type_aa && threeg >= 0)
1453 set_u32(threeg, ACER_CAP_THREEG);
1454 if (brightness >= 0)
1455 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1459 * LED device (Mail LED only, no other LEDs known yet)
1461 static void mail_led_set(struct led_classdev *led_cdev,
1462 enum led_brightness value)
1464 set_u32(value, ACER_CAP_MAILLED);
1467 static struct led_classdev mail_led = {
1468 .name = "acer-wmi::mail",
1469 .brightness_set = mail_led_set,
1472 static int acer_led_init(struct device *dev)
1474 return led_classdev_register(dev, &mail_led);
1477 static void acer_led_exit(void)
1479 set_u32(LED_OFF, ACER_CAP_MAILLED);
1480 led_classdev_unregister(&mail_led);
1486 static struct backlight_device *acer_backlight_device;
1488 static int read_brightness(struct backlight_device *bd)
1491 get_u32(&value, ACER_CAP_BRIGHTNESS);
1495 static int update_bl_status(struct backlight_device *bd)
1497 int intensity = bd->props.brightness;
1499 if (bd->props.power != FB_BLANK_UNBLANK)
1501 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1504 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1509 static const struct backlight_ops acer_bl_ops = {
1510 .get_brightness = read_brightness,
1511 .update_status = update_bl_status,
1514 static int acer_backlight_init(struct device *dev)
1516 struct backlight_properties props;
1517 struct backlight_device *bd;
1519 memset(&props, 0, sizeof(struct backlight_properties));
1520 props.type = BACKLIGHT_PLATFORM;
1521 props.max_brightness = max_brightness;
1522 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1525 pr_err("Could not register Acer backlight device\n");
1526 acer_backlight_device = NULL;
1530 acer_backlight_device = bd;
1532 bd->props.power = FB_BLANK_UNBLANK;
1533 bd->props.brightness = read_brightness(bd);
1534 backlight_update_status(bd);
1538 static void acer_backlight_exit(void)
1540 backlight_device_unregister(acer_backlight_device);
1544 * Accelerometer device
1546 static acpi_handle gsensor_handle;
1548 static int acer_gsensor_init(void)
1551 struct acpi_buffer output;
1552 union acpi_object out_obj;
1554 output.length = sizeof(out_obj);
1555 output.pointer = &out_obj;
1556 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1557 if (ACPI_FAILURE(status))
1563 static int acer_gsensor_open(struct input_dev *input)
1565 return acer_gsensor_init();
1568 static int acer_gsensor_event(void)
1571 struct acpi_buffer output;
1572 union acpi_object out_obj[5];
1574 if (!acer_wmi_accel_dev)
1577 output.length = sizeof(out_obj);
1578 output.pointer = out_obj;
1580 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1581 if (ACPI_FAILURE(status))
1584 if (out_obj->package.count != 4)
1587 input_report_abs(acer_wmi_accel_dev, ABS_X,
1588 (s16)out_obj->package.elements[0].integer.value);
1589 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1590 (s16)out_obj->package.elements[1].integer.value);
1591 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1592 (s16)out_obj->package.elements[2].integer.value);
1593 input_sync(acer_wmi_accel_dev);
1598 * Switch series keyboard dock status
1600 static int acer_kbd_dock_state_to_sw_tablet_mode(u8 kbd_dock_state)
1602 switch (kbd_dock_state) {
1603 case 0x01: /* Docked, traditional clamshell laptop mode */
1605 case 0x04: /* Stand-alone tablet */
1606 case 0x40: /* Docked, tent mode, keyboard not usable */
1609 pr_warn("Unknown kbd_dock_state 0x%02x\n", kbd_dock_state);
1615 static void acer_kbd_dock_get_initial_state(void)
1617 u8 *output, input[8] = { 0x05, 0x00, };
1618 struct acpi_buffer input_buf = { sizeof(input), input };
1619 struct acpi_buffer output_buf = { ACPI_ALLOCATE_BUFFER, NULL };
1620 union acpi_object *obj;
1624 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input_buf, &output_buf);
1625 if (ACPI_FAILURE(status)) {
1626 ACPI_EXCEPTION((AE_INFO, status, "Error getting keyboard-dock initial status"));
1630 obj = output_buf.pointer;
1631 if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
1632 pr_err("Unexpected output format getting keyboard-dock initial status\n");
1636 output = obj->buffer.pointer;
1637 if (output[0] != 0x00 || (output[3] != 0x05 && output[3] != 0x45)) {
1638 pr_err("Unexpected output [0]=0x%02x [3]=0x%02x getting keyboard-dock initial status\n",
1639 output[0], output[3]);
1643 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(output[4]);
1644 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1650 static void acer_kbd_dock_event(const struct event_return_value *event)
1654 if (!has_cap(ACER_CAP_KBD_DOCK))
1657 sw_tablet_mode = acer_kbd_dock_state_to_sw_tablet_mode(event->kbd_dock_state);
1658 input_report_switch(acer_wmi_input_dev, SW_TABLET_MODE, sw_tablet_mode);
1659 input_sync(acer_wmi_input_dev);
1665 static void acer_rfkill_update(struct work_struct *ignored);
1666 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1667 static void acer_rfkill_update(struct work_struct *ignored)
1672 if (has_cap(ACER_CAP_WIRELESS)) {
1673 status = get_u32(&state, ACER_CAP_WIRELESS);
1674 if (ACPI_SUCCESS(status)) {
1675 if (quirks->wireless == 3)
1676 rfkill_set_hw_state(wireless_rfkill, !state);
1678 rfkill_set_sw_state(wireless_rfkill, !state);
1682 if (has_cap(ACER_CAP_BLUETOOTH)) {
1683 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1684 if (ACPI_SUCCESS(status))
1685 rfkill_set_sw_state(bluetooth_rfkill, !state);
1688 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1689 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1690 if (ACPI_SUCCESS(status))
1691 rfkill_set_sw_state(threeg_rfkill, !state);
1694 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1697 static int acer_rfkill_set(void *data, bool blocked)
1700 u32 cap = (unsigned long)data;
1702 if (rfkill_inited) {
1703 status = set_u32(!blocked, cap);
1704 if (ACPI_FAILURE(status))
1711 static const struct rfkill_ops acer_rfkill_ops = {
1712 .set_block = acer_rfkill_set,
1715 static struct rfkill *acer_rfkill_register(struct device *dev,
1716 enum rfkill_type type,
1717 char *name, u32 cap)
1720 struct rfkill *rfkill_dev;
1724 rfkill_dev = rfkill_alloc(name, dev, type,
1726 (void *)(unsigned long)cap);
1728 return ERR_PTR(-ENOMEM);
1730 status = get_u32(&state, cap);
1732 err = rfkill_register(rfkill_dev);
1734 rfkill_destroy(rfkill_dev);
1735 return ERR_PTR(err);
1738 if (ACPI_SUCCESS(status))
1739 rfkill_set_sw_state(rfkill_dev, !state);
1744 static int acer_rfkill_init(struct device *dev)
1748 if (has_cap(ACER_CAP_WIRELESS)) {
1749 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1750 "acer-wireless", ACER_CAP_WIRELESS);
1751 if (IS_ERR(wireless_rfkill)) {
1752 err = PTR_ERR(wireless_rfkill);
1753 goto error_wireless;
1757 if (has_cap(ACER_CAP_BLUETOOTH)) {
1758 bluetooth_rfkill = acer_rfkill_register(dev,
1759 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1760 ACER_CAP_BLUETOOTH);
1761 if (IS_ERR(bluetooth_rfkill)) {
1762 err = PTR_ERR(bluetooth_rfkill);
1763 goto error_bluetooth;
1767 if (has_cap(ACER_CAP_THREEG)) {
1768 threeg_rfkill = acer_rfkill_register(dev,
1769 RFKILL_TYPE_WWAN, "acer-threeg",
1771 if (IS_ERR(threeg_rfkill)) {
1772 err = PTR_ERR(threeg_rfkill);
1777 rfkill_inited = true;
1779 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1780 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1781 schedule_delayed_work(&acer_rfkill_work,
1782 round_jiffies_relative(HZ));
1787 if (has_cap(ACER_CAP_BLUETOOTH)) {
1788 rfkill_unregister(bluetooth_rfkill);
1789 rfkill_destroy(bluetooth_rfkill);
1792 if (has_cap(ACER_CAP_WIRELESS)) {
1793 rfkill_unregister(wireless_rfkill);
1794 rfkill_destroy(wireless_rfkill);
1800 static void acer_rfkill_exit(void)
1802 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1803 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1804 cancel_delayed_work_sync(&acer_rfkill_work);
1806 if (has_cap(ACER_CAP_WIRELESS)) {
1807 rfkill_unregister(wireless_rfkill);
1808 rfkill_destroy(wireless_rfkill);
1811 if (has_cap(ACER_CAP_BLUETOOTH)) {
1812 rfkill_unregister(bluetooth_rfkill);
1813 rfkill_destroy(bluetooth_rfkill);
1816 if (has_cap(ACER_CAP_THREEG)) {
1817 rfkill_unregister(threeg_rfkill);
1818 rfkill_destroy(threeg_rfkill);
1823 static void acer_wmi_notify(u32 value, void *context)
1825 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1826 union acpi_object *obj;
1827 struct event_return_value return_value;
1830 const struct key_entry *key;
1833 status = wmi_get_event_data(value, &response);
1834 if (status != AE_OK) {
1835 pr_warn("bad event status 0x%x\n", status);
1839 obj = (union acpi_object *)response.pointer;
1843 if (obj->type != ACPI_TYPE_BUFFER) {
1844 pr_warn("Unknown response received %d\n", obj->type);
1848 if (obj->buffer.length != 8) {
1849 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1854 return_value = *((struct event_return_value *)obj->buffer.pointer);
1857 switch (return_value.function) {
1858 case WMID_HOTKEY_EVENT:
1859 device_state = return_value.device_state;
1860 pr_debug("device state: 0x%x\n", device_state);
1862 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1863 return_value.key_num);
1865 pr_warn("Unknown key number - 0x%x\n",
1866 return_value.key_num);
1868 scancode = return_value.key_num;
1869 switch (key->keycode) {
1872 if (has_cap(ACER_CAP_WIRELESS))
1873 rfkill_set_sw_state(wireless_rfkill,
1874 !(device_state & ACER_WMID3_GDS_WIRELESS));
1875 if (has_cap(ACER_CAP_THREEG))
1876 rfkill_set_sw_state(threeg_rfkill,
1877 !(device_state & ACER_WMID3_GDS_THREEG));
1878 if (has_cap(ACER_CAP_BLUETOOTH))
1879 rfkill_set_sw_state(bluetooth_rfkill,
1880 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1882 case KEY_TOUCHPAD_TOGGLE:
1883 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1884 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1886 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1889 case WMID_ACCEL_OR_KBD_DOCK_EVENT:
1890 acer_gsensor_event();
1891 acer_kbd_dock_event(&return_value);
1894 pr_warn("Unknown function number - %d - %d\n",
1895 return_value.function, return_value.key_num);
1900 static acpi_status __init
1901 wmid3_set_function_mode(struct func_input_params *params,
1902 struct func_return_value *return_value)
1905 union acpi_object *obj;
1907 struct acpi_buffer input = { sizeof(struct func_input_params), params };
1908 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1910 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1911 if (ACPI_FAILURE(status))
1914 obj = output.pointer;
1918 else if (obj->type != ACPI_TYPE_BUFFER) {
1922 if (obj->buffer.length != 4) {
1923 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1928 *return_value = *((struct func_return_value *)obj->buffer.pointer);
1934 static int __init acer_wmi_enable_ec_raw(void)
1936 struct func_return_value return_value;
1938 struct func_input_params params = {
1939 .function_num = 0x1,
1940 .commun_devices = 0xFFFF,
1942 .app_status = 0x00, /* Launch Manager Deactive */
1946 status = wmid3_set_function_mode(¶ms, &return_value);
1948 if (return_value.error_code || return_value.ec_return_value)
1949 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1950 return_value.error_code,
1951 return_value.ec_return_value);
1953 pr_info("Enabled EC raw mode\n");
1958 static int __init acer_wmi_enable_lm(void)
1960 struct func_return_value return_value;
1962 struct func_input_params params = {
1963 .function_num = 0x1,
1964 .commun_devices = 0xFFFF,
1966 .app_status = 0x01, /* Launch Manager Active */
1970 status = wmid3_set_function_mode(¶ms, &return_value);
1972 if (return_value.error_code || return_value.ec_return_value)
1973 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1974 return_value.error_code,
1975 return_value.ec_return_value);
1980 static int __init acer_wmi_enable_rf_button(void)
1982 struct func_return_value return_value;
1984 struct func_input_params params = {
1985 .function_num = 0x1,
1986 .commun_devices = 0xFFFF,
1988 .app_status = 0x10, /* RF Button Active */
1992 status = wmid3_set_function_mode(¶ms, &return_value);
1994 if (return_value.error_code || return_value.ec_return_value)
1995 pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
1996 return_value.error_code,
1997 return_value.ec_return_value);
2002 #define ACER_WMID_ACCEL_HID "BST0001"
2004 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
2005 void *ctx, void **retval)
2007 struct acpi_device *dev;
2009 if (!strcmp(ctx, "SENR")) {
2010 if (acpi_bus_get_device(ah, &dev))
2012 if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
2017 *(acpi_handle *)retval = ah;
2019 return AE_CTRL_TERMINATE;
2022 static int __init acer_wmi_get_handle(const char *name, const char *prop,
2028 BUG_ON(!name || !ah);
2031 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
2032 (void *)name, &handle);
2033 if (ACPI_SUCCESS(status) && handle) {
2041 static int __init acer_wmi_accel_setup(void)
2045 err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
2049 acer_wmi_accel_dev = input_allocate_device();
2050 if (!acer_wmi_accel_dev)
2053 acer_wmi_accel_dev->open = acer_gsensor_open;
2055 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
2056 acer_wmi_accel_dev->phys = "wmi/input1";
2057 acer_wmi_accel_dev->id.bustype = BUS_HOST;
2058 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
2059 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
2060 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
2061 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
2063 err = input_register_device(acer_wmi_accel_dev);
2070 input_free_device(acer_wmi_accel_dev);
2074 static int __init acer_wmi_input_setup(void)
2079 acer_wmi_input_dev = input_allocate_device();
2080 if (!acer_wmi_input_dev)
2083 acer_wmi_input_dev->name = "Acer WMI hotkeys";
2084 acer_wmi_input_dev->phys = "wmi/input0";
2085 acer_wmi_input_dev->id.bustype = BUS_HOST;
2087 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
2091 if (has_cap(ACER_CAP_KBD_DOCK))
2092 input_set_capability(acer_wmi_input_dev, EV_SW, SW_TABLET_MODE);
2094 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
2095 acer_wmi_notify, NULL);
2096 if (ACPI_FAILURE(status)) {
2101 if (has_cap(ACER_CAP_KBD_DOCK))
2102 acer_kbd_dock_get_initial_state();
2104 err = input_register_device(acer_wmi_input_dev);
2106 goto err_uninstall_notifier;
2110 err_uninstall_notifier:
2111 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2113 input_free_device(acer_wmi_input_dev);
2117 static void acer_wmi_input_destroy(void)
2119 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
2120 input_unregister_device(acer_wmi_input_dev);
2126 static u32 get_wmid_devices(void)
2128 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
2129 union acpi_object *obj;
2133 status = wmi_query_block(WMID_GUID2, 0, &out);
2134 if (ACPI_FAILURE(status))
2137 obj = (union acpi_object *) out.pointer;
2139 if (obj->type == ACPI_TYPE_BUFFER &&
2140 (obj->buffer.length == sizeof(u32) ||
2141 obj->buffer.length == sizeof(u64))) {
2142 devices = *((u32 *) obj->buffer.pointer);
2143 } else if (obj->type == ACPI_TYPE_INTEGER) {
2144 devices = (u32) obj->integer.value;
2155 static int acer_platform_probe(struct platform_device *device)
2159 if (has_cap(ACER_CAP_MAILLED)) {
2160 err = acer_led_init(&device->dev);
2165 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2166 err = acer_backlight_init(&device->dev);
2168 goto error_brightness;
2171 err = acer_rfkill_init(&device->dev);
2178 if (has_cap(ACER_CAP_BRIGHTNESS))
2179 acer_backlight_exit();
2181 if (has_cap(ACER_CAP_MAILLED))
2187 static int acer_platform_remove(struct platform_device *device)
2189 if (has_cap(ACER_CAP_MAILLED))
2191 if (has_cap(ACER_CAP_BRIGHTNESS))
2192 acer_backlight_exit();
2198 #ifdef CONFIG_PM_SLEEP
2199 static int acer_suspend(struct device *dev)
2202 struct acer_data *data = &interface->data;
2207 if (has_cap(ACER_CAP_MAILLED)) {
2208 get_u32(&value, ACER_CAP_MAILLED);
2209 set_u32(LED_OFF, ACER_CAP_MAILLED);
2210 data->mailled = value;
2213 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2214 get_u32(&value, ACER_CAP_BRIGHTNESS);
2215 data->brightness = value;
2221 static int acer_resume(struct device *dev)
2223 struct acer_data *data = &interface->data;
2228 if (has_cap(ACER_CAP_MAILLED))
2229 set_u32(data->mailled, ACER_CAP_MAILLED);
2231 if (has_cap(ACER_CAP_BRIGHTNESS))
2232 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2234 if (acer_wmi_accel_dev)
2235 acer_gsensor_init();
2240 #define acer_suspend NULL
2241 #define acer_resume NULL
2244 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2246 static void acer_platform_shutdown(struct platform_device *device)
2248 struct acer_data *data = &interface->data;
2253 if (has_cap(ACER_CAP_MAILLED))
2254 set_u32(LED_OFF, ACER_CAP_MAILLED);
2257 static struct platform_driver acer_platform_driver = {
2262 .probe = acer_platform_probe,
2263 .remove = acer_platform_remove,
2264 .shutdown = acer_platform_shutdown,
2267 static struct platform_device *acer_platform_device;
2269 static void remove_debugfs(void)
2271 debugfs_remove(interface->debug.devices);
2272 debugfs_remove(interface->debug.root);
2275 static int __init create_debugfs(void)
2277 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2278 if (!interface->debug.root) {
2279 pr_err("Failed to create debugfs directory");
2283 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2284 interface->debug.root,
2285 &interface->debug.wmid_devices);
2286 if (!interface->debug.devices)
2296 static int __init acer_wmi_init(void)
2300 pr_info("Acer Laptop ACPI-WMI Extras\n");
2302 if (dmi_check_system(acer_blacklist)) {
2303 pr_info("Blacklisted hardware detected - not loading\n");
2310 * The AMW0_GUID1 wmi is not only found on Acer family but also other
2311 * machines like Lenovo, Fujitsu and Medion. In the past days,
2312 * acer-wmi driver handled those non-Acer machines by quirks list.
2313 * But actually acer-wmi driver was loaded on any machines that have
2314 * AMW0_GUID1. This behavior is strange because those machines should
2315 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
2316 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
2317 * should be in Acer/Gateway/Packard Bell white list, or it's already
2318 * in the past quirk list.
2320 if (wmi_has_guid(AMW0_GUID1) &&
2321 !dmi_check_system(amw0_whitelist) &&
2322 quirks == &quirk_unknown) {
2323 pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
2328 * Detect which ACPI-WMI interface we're using.
2330 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2331 interface = &AMW0_V2_interface;
2333 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2334 interface = &wmid_interface;
2336 if (wmi_has_guid(WMID_GUID3))
2337 interface = &wmid_v2_interface;
2340 dmi_walk(type_aa_dmi_decode, NULL);
2342 if (wmi_has_guid(WMID_GUID2) && interface) {
2343 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2344 pr_err("Unable to detect available WMID devices\n");
2347 /* WMID always provides brightness methods */
2348 interface->capability |= ACER_CAP_BRIGHTNESS;
2349 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
2350 pr_err("No WMID device detection method found\n");
2354 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2355 interface = &AMW0_interface;
2357 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2358 pr_err("Unable to detect available AMW0 devices\n");
2363 if (wmi_has_guid(AMW0_GUID1))
2364 AMW0_find_mailled();
2367 pr_err("No or unsupported WMI interface, unable to load\n");
2373 if (dmi_check_system(video_vendor_dmi_table))
2374 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2376 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2377 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2379 if (wmi_has_guid(WMID_GUID3))
2380 interface->capability |= ACER_CAP_SET_FUNCTION_MODE;
2382 if (force_caps != -1)
2383 interface->capability = force_caps;
2385 if (wmi_has_guid(WMID_GUID3) &&
2386 (interface->capability & ACER_CAP_SET_FUNCTION_MODE)) {
2387 if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
2388 pr_warn("Cannot enable RF Button Driver\n");
2391 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2392 pr_err("Cannot enable EC raw mode\n");
2395 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2396 pr_err("Cannot enable Launch Manager mode\n");
2399 } else if (ec_raw_mode) {
2400 pr_info("No WMID EC raw mode enable method\n");
2403 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2404 err = acer_wmi_input_setup();
2407 err = acer_wmi_accel_setup();
2408 if (err && err != -ENODEV)
2409 pr_warn("Cannot enable accelerometer\n");
2412 err = platform_driver_register(&acer_platform_driver);
2414 pr_err("Unable to register platform driver\n");
2415 goto error_platform_register;
2418 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2419 if (!acer_platform_device) {
2421 goto error_device_alloc;
2424 err = platform_device_add(acer_platform_device);
2426 goto error_device_add;
2428 if (wmi_has_guid(WMID_GUID2)) {
2429 interface->debug.wmid_devices = get_wmid_devices();
2430 err = create_debugfs();
2432 goto error_create_debugfs;
2435 /* Override any initial settings with values from the commandline */
2436 acer_commandline_init();
2440 error_create_debugfs:
2441 platform_device_del(acer_platform_device);
2443 platform_device_put(acer_platform_device);
2445 platform_driver_unregister(&acer_platform_driver);
2446 error_platform_register:
2447 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2448 acer_wmi_input_destroy();
2449 if (acer_wmi_accel_dev)
2450 input_unregister_device(acer_wmi_accel_dev);
2455 static void __exit acer_wmi_exit(void)
2457 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2458 acer_wmi_input_destroy();
2460 if (acer_wmi_accel_dev)
2461 input_unregister_device(acer_wmi_accel_dev);
2464 platform_device_unregister(acer_platform_device);
2465 platform_driver_unregister(&acer_platform_driver);
2467 pr_info("Acer Laptop WMI Extras unloaded\n");
2471 module_init(acer_wmi_init);
2472 module_exit(acer_wmi_exit);