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 MODULE_AUTHOR("Carlos Corbacho");
47 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
48 MODULE_LICENSE("GPL");
52 * Meaning is unknown - this number is required for writing to ACPI for AMW0
53 * (it's also used in acerhk when directly accessing the BIOS)
55 #define ACER_AMW0_WRITE 0x9610
58 * Bit masks for the AMW0 interface
60 #define ACER_AMW0_WIRELESS_MASK 0x35
61 #define ACER_AMW0_BLUETOOTH_MASK 0x34
62 #define ACER_AMW0_MAILLED_MASK 0x31
65 * Method IDs for WMID interface
67 #define ACER_WMID_GET_WIRELESS_METHODID 1
68 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
69 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
70 #define ACER_WMID_SET_WIRELESS_METHODID 4
71 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
72 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
73 #define ACER_WMID_GET_THREEG_METHODID 10
74 #define ACER_WMID_SET_THREEG_METHODID 11
77 * Acer ACPI method GUIDs
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"
86 * Acer ACPI event GUIDs
88 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
90 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
91 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
92 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
94 enum acer_wmi_event_ids {
95 WMID_HOTKEY_EVENT = 0x1,
96 WMID_ACCEL_EVENT = 0x5,
99 static const struct key_entry acer_wmi_keymap[] __initconst = {
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_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
109 {KE_IGNORE, 0x41, {KEY_MUTE} },
110 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
111 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
112 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
113 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
114 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
115 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
116 {KE_IGNORE, 0x45, {KEY_STOP} },
117 {KE_IGNORE, 0x50, {KEY_STOP} },
118 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
119 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
120 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
121 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
122 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
123 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
124 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
125 {KE_IGNORE, 0x81, {KEY_SLEEP} },
126 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
127 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
128 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
129 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
130 {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} },
134 static struct input_dev *acer_wmi_input_dev;
135 static struct input_dev *acer_wmi_accel_dev;
137 struct event_return_value {
142 } __attribute__((packed));
145 * GUID3 Get Device Status device flags
147 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
148 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
149 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
150 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
151 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
153 struct lm_input_params {
154 u8 function_num; /* Function Number */
155 u16 commun_devices; /* Communication type devices default status */
156 u16 devices; /* Other type devices default status */
157 u8 lm_status; /* Launch Manager Status */
159 } __attribute__((packed));
161 struct lm_return_value {
162 u8 error_code; /* Error Code */
163 u8 ec_return_value; /* EC Return Value */
165 } __attribute__((packed));
167 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
168 u8 function_num; /* Function Number */
169 u8 hotkey_number; /* Hotkey Number */
170 u16 devices; /* Set Device */
171 u8 volume_value; /* Volume Value */
172 } __attribute__((packed));
174 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
175 u8 function_num; /* Function Number */
176 u8 hotkey_number; /* Hotkey Number */
177 u16 devices; /* Get Device */
178 } __attribute__((packed));
180 struct wmid3_gds_return_value { /* Get Device Status return value*/
181 u8 error_code; /* Error Code */
182 u8 ec_return_value; /* EC Return Value */
183 u16 devices; /* Current Device Status */
185 } __attribute__((packed));
187 struct hotkey_function_type_aa {
191 u16 commun_func_bitmap;
192 u16 application_func_bitmap;
193 u16 media_func_bitmap;
194 u16 display_func_bitmap;
195 u16 others_func_bitmap;
196 u8 commun_fn_key_number;
197 } __attribute__((packed));
200 * Interface capability flags
202 #define ACER_CAP_MAILLED (1<<0)
203 #define ACER_CAP_WIRELESS (1<<1)
204 #define ACER_CAP_BLUETOOTH (1<<2)
205 #define ACER_CAP_BRIGHTNESS (1<<3)
206 #define ACER_CAP_THREEG (1<<4)
207 #define ACER_CAP_ACCEL (1<<5)
208 #define ACER_CAP_ANY (0xFFFFFFFF)
211 * Interface type flags
213 enum interface_flags {
220 #define ACER_DEFAULT_WIRELESS 0
221 #define ACER_DEFAULT_BLUETOOTH 0
222 #define ACER_DEFAULT_MAILLED 0
223 #define ACER_DEFAULT_THREEG 0
225 static int max_brightness = 0xF;
227 static int mailled = -1;
228 static int brightness = -1;
229 static int threeg = -1;
230 static int force_series;
231 static bool ec_raw_mode;
232 static bool has_type_aa;
233 static u16 commun_func_bitmap;
234 static u8 commun_fn_key_number;
236 module_param(mailled, int, 0444);
237 module_param(brightness, int, 0444);
238 module_param(threeg, int, 0444);
239 module_param(force_series, int, 0444);
240 module_param(ec_raw_mode, bool, 0444);
241 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
242 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
243 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
244 MODULE_PARM_DESC(force_series, "Force a different laptop series");
245 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
255 struct dentry *devices;
259 static struct rfkill *wireless_rfkill;
260 static struct rfkill *bluetooth_rfkill;
261 static struct rfkill *threeg_rfkill;
262 static bool rfkill_inited;
264 /* Each low-level interface must define at least some of the following */
265 struct wmi_interface {
266 /* The WMI device type */
269 /* The capabilities this interface provides */
272 /* Private data for the current interface */
273 struct acer_data data;
275 /* debugfs entries associated with this interface */
276 struct acer_debug debug;
279 /* The static interface pointer, points to the currently detected interface */
280 static struct wmi_interface *interface;
283 * Embedded Controller quirks
284 * Some laptops require us to directly access the EC to either enable or query
285 * features that are not available through WMI.
295 static struct quirk_entry *quirks;
297 static void __init set_quirks(void)
303 interface->capability |= ACER_CAP_MAILLED;
305 if (quirks->brightness)
306 interface->capability |= ACER_CAP_BRIGHTNESS;
309 static int __init dmi_matched(const struct dmi_system_id *dmi)
311 quirks = dmi->driver_data;
315 static struct quirk_entry quirk_unknown = {
318 static struct quirk_entry quirk_acer_aspire_1520 = {
322 static struct quirk_entry quirk_acer_travelmate_2490 = {
326 /* This AMW0 laptop has no bluetooth */
327 static struct quirk_entry quirk_medion_md_98300 = {
331 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
335 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
339 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
340 static const struct dmi_system_id acer_blacklist[] __initconst = {
342 .ident = "Acer Aspire One (SSD)",
344 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
349 .ident = "Acer Aspire One (HDD)",
351 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
358 static const struct dmi_system_id acer_quirks[] __initconst = {
360 .callback = dmi_matched,
361 .ident = "Acer Aspire 1360",
363 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
364 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
366 .driver_data = &quirk_acer_aspire_1520,
369 .callback = dmi_matched,
370 .ident = "Acer Aspire 1520",
372 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
373 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
375 .driver_data = &quirk_acer_aspire_1520,
378 .callback = dmi_matched,
379 .ident = "Acer Aspire 3100",
381 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
382 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
384 .driver_data = &quirk_acer_travelmate_2490,
387 .callback = dmi_matched,
388 .ident = "Acer Aspire 3610",
390 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
391 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
393 .driver_data = &quirk_acer_travelmate_2490,
396 .callback = dmi_matched,
397 .ident = "Acer Aspire 5100",
399 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
400 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
402 .driver_data = &quirk_acer_travelmate_2490,
405 .callback = dmi_matched,
406 .ident = "Acer Aspire 5610",
408 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
409 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
411 .driver_data = &quirk_acer_travelmate_2490,
414 .callback = dmi_matched,
415 .ident = "Acer Aspire 5630",
417 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
418 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
420 .driver_data = &quirk_acer_travelmate_2490,
423 .callback = dmi_matched,
424 .ident = "Acer Aspire 5650",
426 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
427 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
429 .driver_data = &quirk_acer_travelmate_2490,
432 .callback = dmi_matched,
433 .ident = "Acer Aspire 5680",
435 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
436 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
438 .driver_data = &quirk_acer_travelmate_2490,
441 .callback = dmi_matched,
442 .ident = "Acer Aspire 9110",
444 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
445 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
447 .driver_data = &quirk_acer_travelmate_2490,
450 .callback = dmi_matched,
451 .ident = "Acer TravelMate 2490",
453 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
454 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
456 .driver_data = &quirk_acer_travelmate_2490,
459 .callback = dmi_matched,
460 .ident = "Acer TravelMate 4200",
462 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
463 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
465 .driver_data = &quirk_acer_travelmate_2490,
468 .callback = dmi_matched,
469 .ident = "Fujitsu Siemens Amilo Li 1718",
471 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
472 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
474 .driver_data = &quirk_fujitsu_amilo_li_1718,
477 .callback = dmi_matched,
478 .ident = "Medion MD 98300",
480 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
481 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
483 .driver_data = &quirk_medion_md_98300,
486 .callback = dmi_matched,
487 .ident = "Lenovo Ideapad S205",
489 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
492 .driver_data = &quirk_lenovo_ideapad_s205,
495 .callback = dmi_matched,
496 .ident = "Lenovo Ideapad S205 (Brazos)",
498 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
499 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
501 .driver_data = &quirk_lenovo_ideapad_s205,
504 .callback = dmi_matched,
505 .ident = "Lenovo 3000 N200",
507 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
508 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
510 .driver_data = &quirk_fujitsu_amilo_li_1718,
513 .callback = dmi_matched,
514 .ident = "Lenovo Ideapad S205-10382JG",
516 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "10382JG"),
519 .driver_data = &quirk_lenovo_ideapad_s205,
522 .callback = dmi_matched,
523 .ident = "Lenovo Ideapad S205-1038DPG",
525 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
526 DMI_MATCH(DMI_PRODUCT_NAME, "1038DPG"),
528 .driver_data = &quirk_lenovo_ideapad_s205,
534 video_set_backlight_video_vendor(const struct dmi_system_id *d)
536 interface->capability &= ~ACER_CAP_BRIGHTNESS;
537 pr_info("Brightness must be controlled by generic video driver\n");
541 static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
543 .callback = video_set_backlight_video_vendor,
544 .ident = "Acer TravelMate 4750",
546 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
547 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
551 .callback = video_set_backlight_video_vendor,
552 .ident = "Acer Extensa 5235",
554 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
555 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
559 .callback = video_set_backlight_video_vendor,
560 .ident = "Acer TravelMate 5760",
562 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
563 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
567 .callback = video_set_backlight_video_vendor,
568 .ident = "Acer Aspire 5750",
570 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
571 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
575 .callback = video_set_backlight_video_vendor,
576 .ident = "Acer Aspire 5741",
578 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
579 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"),
584 * Note no video_set_backlight_video_vendor, we must use the
585 * acer interface, as there is no native backlight interface.
587 .ident = "Acer KAV80",
589 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
590 DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"),
596 /* Find which quirks are needed for a particular vendor/ model pair */
597 static void __init find_quirks(void)
600 dmi_check_system(acer_quirks);
601 } else if (force_series == 2490) {
602 quirks = &quirk_acer_travelmate_2490;
606 quirks = &quirk_unknown;
612 * General interface convenience methods
615 static bool has_cap(u32 cap)
617 if ((interface->capability & cap) != 0)
624 * AMW0 (V1) interface
641 static acpi_status wmab_execute(struct wmab_args *regbuf,
642 struct acpi_buffer *result)
644 struct acpi_buffer input;
646 input.length = sizeof(struct wmab_args);
647 input.pointer = (u8 *)regbuf;
649 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
654 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
660 case ACER_CAP_MAILLED:
661 switch (quirks->mailled) {
663 err = ec_read(0xA, &result);
666 *value = (result >> 7) & 0x1;
670 case ACER_CAP_WIRELESS:
671 switch (quirks->wireless) {
673 err = ec_read(0x7B, &result);
676 *value = result & 0x1;
679 err = ec_read(0x71, &result);
682 *value = result & 0x1;
685 err = ec_read(0x78, &result);
688 *value = result & 0x1;
691 err = ec_read(0xA, &result);
694 *value = (result >> 2) & 0x1;
698 case ACER_CAP_BLUETOOTH:
699 switch (quirks->bluetooth) {
701 err = ec_read(0xA, &result);
704 *value = (result >> 4) & 0x1;
708 case ACER_CAP_BRIGHTNESS:
709 switch (quirks->brightness) {
711 err = ec_read(0x83, &result);
724 static acpi_status AMW0_set_u32(u32 value, u32 cap)
726 struct wmab_args args;
728 args.eax = ACER_AMW0_WRITE;
729 args.ebx = value ? (1<<8) : 0;
730 args.ecx = args.edx = 0;
733 case ACER_CAP_MAILLED:
735 return AE_BAD_PARAMETER;
736 args.ebx |= ACER_AMW0_MAILLED_MASK;
738 case ACER_CAP_WIRELESS:
740 return AE_BAD_PARAMETER;
741 args.ebx |= ACER_AMW0_WIRELESS_MASK;
743 case ACER_CAP_BLUETOOTH:
745 return AE_BAD_PARAMETER;
746 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
748 case ACER_CAP_BRIGHTNESS:
749 if (value > max_brightness)
750 return AE_BAD_PARAMETER;
751 switch (quirks->brightness) {
753 return ec_write(0x83, value);
760 /* Actually do the set */
761 return wmab_execute(&args, NULL);
764 static acpi_status __init AMW0_find_mailled(void)
766 struct wmab_args args;
768 acpi_status status = AE_OK;
769 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
770 union acpi_object *obj;
773 args.ebx = args.ecx = args.edx = 0;
775 status = wmab_execute(&args, &out);
776 if (ACPI_FAILURE(status))
779 obj = (union acpi_object *) out.pointer;
780 if (obj && obj->type == ACPI_TYPE_BUFFER &&
781 obj->buffer.length == sizeof(struct wmab_ret)) {
782 ret = *((struct wmab_ret *) obj->buffer.pointer);
789 interface->capability |= ACER_CAP_MAILLED;
796 static int AMW0_set_cap_acpi_check_device_found __initdata;
798 static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
799 u32 level, void *context, void **retval)
801 AMW0_set_cap_acpi_check_device_found = 1;
805 static const struct acpi_device_id norfkill_ids[] __initconst = {
809 { "SNY5001", 0}, /* sony-laptop in charge */
813 static int __init AMW0_set_cap_acpi_check_device(void)
815 const struct acpi_device_id *id;
817 for (id = norfkill_ids; id->id[0]; id++)
818 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
820 return AMW0_set_cap_acpi_check_device_found;
823 static acpi_status __init AMW0_set_capabilities(void)
825 struct wmab_args args;
828 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
829 union acpi_object *obj;
832 * On laptops with this strange GUID (non Acer), normal probing doesn't
835 if (wmi_has_guid(AMW0_GUID2)) {
836 if ((quirks != &quirk_unknown) ||
837 !AMW0_set_cap_acpi_check_device())
838 interface->capability |= ACER_CAP_WIRELESS;
842 args.eax = ACER_AMW0_WRITE;
843 args.ecx = args.edx = 0;
845 args.ebx = 0xa2 << 8;
846 args.ebx |= ACER_AMW0_WIRELESS_MASK;
848 status = wmab_execute(&args, &out);
849 if (ACPI_FAILURE(status))
853 if (obj && obj->type == ACPI_TYPE_BUFFER &&
854 obj->buffer.length == sizeof(struct wmab_ret)) {
855 ret = *((struct wmab_ret *) obj->buffer.pointer);
862 interface->capability |= ACER_CAP_WIRELESS;
865 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
868 * It's ok to use existing buffer for next wmab_execute call.
869 * But we need to kfree(out.pointer) if next wmab_execute fail.
871 status = wmab_execute(&args, &out);
872 if (ACPI_FAILURE(status))
875 obj = (union acpi_object *) out.pointer;
876 if (obj && obj->type == ACPI_TYPE_BUFFER
877 && obj->buffer.length == sizeof(struct wmab_ret)) {
878 ret = *((struct wmab_ret *) obj->buffer.pointer);
885 interface->capability |= ACER_CAP_BLUETOOTH;
888 * This appears to be safe to enable, since all Wistron based laptops
889 * appear to use the same EC register for brightness, even if they
890 * differ for wireless, etc
892 if (quirks->brightness >= 0)
893 interface->capability |= ACER_CAP_BRIGHTNESS;
901 static struct wmi_interface AMW0_interface = {
905 static struct wmi_interface AMW0_V2_interface = {
906 .type = ACER_AMW0_V2,
910 * New interface (The WMID interface)
913 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
915 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
916 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
917 union acpi_object *obj;
921 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
923 if (ACPI_FAILURE(status))
926 obj = (union acpi_object *) result.pointer;
928 if (obj->type == ACPI_TYPE_BUFFER &&
929 (obj->buffer.length == sizeof(u32) ||
930 obj->buffer.length == sizeof(u64))) {
931 tmp = *((u32 *) obj->buffer.pointer);
932 } else if (obj->type == ACPI_TYPE_INTEGER) {
933 tmp = (u32) obj->integer.value;
940 kfree(result.pointer);
945 static acpi_status WMID_get_u32(u32 *value, u32 cap)
949 u32 result, method_id = 0;
952 case ACER_CAP_WIRELESS:
953 method_id = ACER_WMID_GET_WIRELESS_METHODID;
955 case ACER_CAP_BLUETOOTH:
956 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
958 case ACER_CAP_BRIGHTNESS:
959 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
961 case ACER_CAP_THREEG:
962 method_id = ACER_WMID_GET_THREEG_METHODID;
964 case ACER_CAP_MAILLED:
965 if (quirks->mailled == 1) {
973 status = WMI_execute_u32(method_id, 0, &result);
975 if (ACPI_SUCCESS(status))
981 static acpi_status WMID_set_u32(u32 value, u32 cap)
987 case ACER_CAP_BRIGHTNESS:
988 if (value > max_brightness)
989 return AE_BAD_PARAMETER;
990 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
992 case ACER_CAP_WIRELESS:
994 return AE_BAD_PARAMETER;
995 method_id = ACER_WMID_SET_WIRELESS_METHODID;
997 case ACER_CAP_BLUETOOTH:
999 return AE_BAD_PARAMETER;
1000 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
1002 case ACER_CAP_THREEG:
1004 return AE_BAD_PARAMETER;
1005 method_id = ACER_WMID_SET_THREEG_METHODID;
1007 case ACER_CAP_MAILLED:
1009 return AE_BAD_PARAMETER;
1010 if (quirks->mailled == 1) {
1011 param = value ? 0x92 : 0x93;
1013 i8042_command(¶m, 0x1059);
1014 i8042_unlock_chip();
1021 return WMI_execute_u32(method_id, (u32)value, NULL);
1024 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
1026 struct wmid3_gds_return_value return_value;
1028 union acpi_object *obj;
1029 struct wmid3_gds_get_input_param params = {
1030 .function_num = 0x1,
1031 .hotkey_number = commun_fn_key_number,
1034 struct acpi_buffer input = {
1035 sizeof(struct wmid3_gds_get_input_param),
1038 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1040 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1041 if (ACPI_FAILURE(status))
1044 obj = output.pointer;
1048 else if (obj->type != ACPI_TYPE_BUFFER) {
1052 if (obj->buffer.length != 8) {
1053 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1058 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1061 if (return_value.error_code || return_value.ec_return_value)
1062 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1064 return_value.error_code,
1065 return_value.ec_return_value);
1067 *value = !!(return_value.devices & device);
1072 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1077 case ACER_CAP_WIRELESS:
1078 device = ACER_WMID3_GDS_WIRELESS;
1080 case ACER_CAP_BLUETOOTH:
1081 device = ACER_WMID3_GDS_BLUETOOTH;
1083 case ACER_CAP_THREEG:
1084 device = ACER_WMID3_GDS_THREEG;
1089 return wmid3_get_device_status(value, device);
1092 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1094 struct wmid3_gds_return_value return_value;
1096 union acpi_object *obj;
1098 struct wmid3_gds_get_input_param get_params = {
1099 .function_num = 0x1,
1100 .hotkey_number = commun_fn_key_number,
1101 .devices = commun_func_bitmap,
1103 struct acpi_buffer get_input = {
1104 sizeof(struct wmid3_gds_get_input_param),
1107 struct wmid3_gds_set_input_param set_params = {
1108 .function_num = 0x2,
1109 .hotkey_number = commun_fn_key_number,
1110 .devices = commun_func_bitmap,
1112 struct acpi_buffer set_input = {
1113 sizeof(struct wmid3_gds_set_input_param),
1116 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1117 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1119 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1120 if (ACPI_FAILURE(status))
1123 obj = output.pointer;
1127 else if (obj->type != ACPI_TYPE_BUFFER) {
1131 if (obj->buffer.length != 8) {
1132 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1137 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1140 if (return_value.error_code || return_value.ec_return_value) {
1141 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1142 return_value.error_code,
1143 return_value.ec_return_value);
1147 devices = return_value.devices;
1148 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1150 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1151 if (ACPI_FAILURE(status))
1154 obj = output2.pointer;
1158 else if (obj->type != ACPI_TYPE_BUFFER) {
1162 if (obj->buffer.length != 4) {
1163 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1168 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1171 if (return_value.error_code || return_value.ec_return_value)
1172 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1173 return_value.error_code,
1174 return_value.ec_return_value);
1179 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1184 case ACER_CAP_WIRELESS:
1185 device = ACER_WMID3_GDS_WIRELESS;
1187 case ACER_CAP_BLUETOOTH:
1188 device = ACER_WMID3_GDS_BLUETOOTH;
1190 case ACER_CAP_THREEG:
1191 device = ACER_WMID3_GDS_THREEG;
1196 return wmid3_set_device_status(value, device);
1199 static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
1201 struct hotkey_function_type_aa *type_aa;
1203 /* We are looking for OEM-specific Type AAh */
1204 if (header->type != 0xAA)
1208 type_aa = (struct hotkey_function_type_aa *) header;
1210 pr_info("Function bitmap for Communication Button: 0x%x\n",
1211 type_aa->commun_func_bitmap);
1212 commun_func_bitmap = type_aa->commun_func_bitmap;
1214 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1215 interface->capability |= ACER_CAP_WIRELESS;
1216 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1217 interface->capability |= ACER_CAP_THREEG;
1218 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1219 interface->capability |= ACER_CAP_BLUETOOTH;
1221 commun_fn_key_number = type_aa->commun_fn_key_number;
1224 static acpi_status __init WMID_set_capabilities(void)
1226 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1227 union acpi_object *obj;
1231 status = wmi_query_block(WMID_GUID2, 1, &out);
1232 if (ACPI_FAILURE(status))
1235 obj = (union acpi_object *) out.pointer;
1237 if (obj->type == ACPI_TYPE_BUFFER &&
1238 (obj->buffer.length == sizeof(u32) ||
1239 obj->buffer.length == sizeof(u64))) {
1240 devices = *((u32 *) obj->buffer.pointer);
1241 } else if (obj->type == ACPI_TYPE_INTEGER) {
1242 devices = (u32) obj->integer.value;
1252 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1254 interface->capability |= ACER_CAP_WIRELESS;
1256 interface->capability |= ACER_CAP_THREEG;
1258 interface->capability |= ACER_CAP_BLUETOOTH;
1260 if (!(devices & 0x20))
1261 max_brightness = 0x9;
1267 static struct wmi_interface wmid_interface = {
1271 static struct wmi_interface wmid_v2_interface = {
1272 .type = ACER_WMID_v2,
1276 * Generic Device (interface-independent)
1279 static acpi_status get_u32(u32 *value, u32 cap)
1281 acpi_status status = AE_ERROR;
1283 switch (interface->type) {
1285 status = AMW0_get_u32(value, cap);
1288 if (cap == ACER_CAP_MAILLED) {
1289 status = AMW0_get_u32(value, cap);
1293 status = WMID_get_u32(value, cap);
1296 if (cap & (ACER_CAP_WIRELESS |
1297 ACER_CAP_BLUETOOTH |
1299 status = wmid_v2_get_u32(value, cap);
1300 else if (wmi_has_guid(WMID_GUID2))
1301 status = WMID_get_u32(value, cap);
1308 static acpi_status set_u32(u32 value, u32 cap)
1312 if (interface->capability & cap) {
1313 switch (interface->type) {
1315 return AMW0_set_u32(value, cap);
1317 if (cap == ACER_CAP_MAILLED)
1318 return AMW0_set_u32(value, cap);
1321 * On some models, some WMID methods don't toggle
1322 * properly. For those cases, we want to run the AMW0
1323 * method afterwards to be certain we've really toggled
1326 if (cap == ACER_CAP_WIRELESS ||
1327 cap == ACER_CAP_BLUETOOTH) {
1328 status = WMID_set_u32(value, cap);
1329 if (ACPI_FAILURE(status))
1332 return AMW0_set_u32(value, cap);
1335 return WMID_set_u32(value, cap);
1337 if (cap & (ACER_CAP_WIRELESS |
1338 ACER_CAP_BLUETOOTH |
1340 return wmid_v2_set_u32(value, cap);
1341 else if (wmi_has_guid(WMID_GUID2))
1342 return WMID_set_u32(value, cap);
1344 return AE_BAD_PARAMETER;
1347 return AE_BAD_PARAMETER;
1350 static void __init acer_commandline_init(void)
1353 * These will all fail silently if the value given is invalid, or the
1354 * capability isn't available on the given interface
1357 set_u32(mailled, ACER_CAP_MAILLED);
1358 if (!has_type_aa && threeg >= 0)
1359 set_u32(threeg, ACER_CAP_THREEG);
1360 if (brightness >= 0)
1361 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1365 * LED device (Mail LED only, no other LEDs known yet)
1367 static void mail_led_set(struct led_classdev *led_cdev,
1368 enum led_brightness value)
1370 set_u32(value, ACER_CAP_MAILLED);
1373 static struct led_classdev mail_led = {
1374 .name = "acer-wmi::mail",
1375 .brightness_set = mail_led_set,
1378 static int acer_led_init(struct device *dev)
1380 return led_classdev_register(dev, &mail_led);
1383 static void acer_led_exit(void)
1385 set_u32(LED_OFF, ACER_CAP_MAILLED);
1386 led_classdev_unregister(&mail_led);
1392 static struct backlight_device *acer_backlight_device;
1394 static int read_brightness(struct backlight_device *bd)
1397 get_u32(&value, ACER_CAP_BRIGHTNESS);
1401 static int update_bl_status(struct backlight_device *bd)
1403 int intensity = bd->props.brightness;
1405 if (bd->props.power != FB_BLANK_UNBLANK)
1407 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1410 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1415 static const struct backlight_ops acer_bl_ops = {
1416 .get_brightness = read_brightness,
1417 .update_status = update_bl_status,
1420 static int acer_backlight_init(struct device *dev)
1422 struct backlight_properties props;
1423 struct backlight_device *bd;
1425 memset(&props, 0, sizeof(struct backlight_properties));
1426 props.type = BACKLIGHT_PLATFORM;
1427 props.max_brightness = max_brightness;
1428 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1431 pr_err("Could not register Acer backlight device\n");
1432 acer_backlight_device = NULL;
1436 acer_backlight_device = bd;
1438 bd->props.power = FB_BLANK_UNBLANK;
1439 bd->props.brightness = read_brightness(bd);
1440 backlight_update_status(bd);
1444 static void acer_backlight_exit(void)
1446 backlight_device_unregister(acer_backlight_device);
1450 * Accelerometer device
1452 static acpi_handle gsensor_handle;
1454 static int acer_gsensor_init(void)
1457 struct acpi_buffer output;
1458 union acpi_object out_obj;
1460 output.length = sizeof(out_obj);
1461 output.pointer = &out_obj;
1462 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1463 if (ACPI_FAILURE(status))
1469 static int acer_gsensor_open(struct input_dev *input)
1471 return acer_gsensor_init();
1474 static int acer_gsensor_event(void)
1477 struct acpi_buffer output;
1478 union acpi_object out_obj[5];
1480 if (!has_cap(ACER_CAP_ACCEL))
1483 output.length = sizeof(out_obj);
1484 output.pointer = out_obj;
1486 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1487 if (ACPI_FAILURE(status))
1490 if (out_obj->package.count != 4)
1493 input_report_abs(acer_wmi_accel_dev, ABS_X,
1494 (s16)out_obj->package.elements[0].integer.value);
1495 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1496 (s16)out_obj->package.elements[1].integer.value);
1497 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1498 (s16)out_obj->package.elements[2].integer.value);
1499 input_sync(acer_wmi_accel_dev);
1506 static void acer_rfkill_update(struct work_struct *ignored);
1507 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1508 static void acer_rfkill_update(struct work_struct *ignored)
1513 if (has_cap(ACER_CAP_WIRELESS)) {
1514 status = get_u32(&state, ACER_CAP_WIRELESS);
1515 if (ACPI_SUCCESS(status)) {
1516 if (quirks->wireless == 3)
1517 rfkill_set_hw_state(wireless_rfkill, !state);
1519 rfkill_set_sw_state(wireless_rfkill, !state);
1523 if (has_cap(ACER_CAP_BLUETOOTH)) {
1524 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1525 if (ACPI_SUCCESS(status))
1526 rfkill_set_sw_state(bluetooth_rfkill, !state);
1529 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1530 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1531 if (ACPI_SUCCESS(status))
1532 rfkill_set_sw_state(threeg_rfkill, !state);
1535 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1538 static int acer_rfkill_set(void *data, bool blocked)
1541 u32 cap = (unsigned long)data;
1543 if (rfkill_inited) {
1544 status = set_u32(!blocked, cap);
1545 if (ACPI_FAILURE(status))
1552 static const struct rfkill_ops acer_rfkill_ops = {
1553 .set_block = acer_rfkill_set,
1556 static struct rfkill *acer_rfkill_register(struct device *dev,
1557 enum rfkill_type type,
1558 char *name, u32 cap)
1561 struct rfkill *rfkill_dev;
1565 rfkill_dev = rfkill_alloc(name, dev, type,
1567 (void *)(unsigned long)cap);
1569 return ERR_PTR(-ENOMEM);
1571 status = get_u32(&state, cap);
1573 err = rfkill_register(rfkill_dev);
1575 rfkill_destroy(rfkill_dev);
1576 return ERR_PTR(err);
1579 if (ACPI_SUCCESS(status))
1580 rfkill_set_sw_state(rfkill_dev, !state);
1585 static int acer_rfkill_init(struct device *dev)
1589 if (has_cap(ACER_CAP_WIRELESS)) {
1590 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1591 "acer-wireless", ACER_CAP_WIRELESS);
1592 if (IS_ERR(wireless_rfkill)) {
1593 err = PTR_ERR(wireless_rfkill);
1594 goto error_wireless;
1598 if (has_cap(ACER_CAP_BLUETOOTH)) {
1599 bluetooth_rfkill = acer_rfkill_register(dev,
1600 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1601 ACER_CAP_BLUETOOTH);
1602 if (IS_ERR(bluetooth_rfkill)) {
1603 err = PTR_ERR(bluetooth_rfkill);
1604 goto error_bluetooth;
1608 if (has_cap(ACER_CAP_THREEG)) {
1609 threeg_rfkill = acer_rfkill_register(dev,
1610 RFKILL_TYPE_WWAN, "acer-threeg",
1612 if (IS_ERR(threeg_rfkill)) {
1613 err = PTR_ERR(threeg_rfkill);
1618 rfkill_inited = true;
1620 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1621 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1622 schedule_delayed_work(&acer_rfkill_work,
1623 round_jiffies_relative(HZ));
1628 if (has_cap(ACER_CAP_BLUETOOTH)) {
1629 rfkill_unregister(bluetooth_rfkill);
1630 rfkill_destroy(bluetooth_rfkill);
1633 if (has_cap(ACER_CAP_WIRELESS)) {
1634 rfkill_unregister(wireless_rfkill);
1635 rfkill_destroy(wireless_rfkill);
1641 static void acer_rfkill_exit(void)
1643 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1644 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1645 cancel_delayed_work_sync(&acer_rfkill_work);
1647 if (has_cap(ACER_CAP_WIRELESS)) {
1648 rfkill_unregister(wireless_rfkill);
1649 rfkill_destroy(wireless_rfkill);
1652 if (has_cap(ACER_CAP_BLUETOOTH)) {
1653 rfkill_unregister(bluetooth_rfkill);
1654 rfkill_destroy(bluetooth_rfkill);
1657 if (has_cap(ACER_CAP_THREEG)) {
1658 rfkill_unregister(threeg_rfkill);
1659 rfkill_destroy(threeg_rfkill);
1667 static ssize_t show_bool_threeg(struct device *dev,
1668 struct device_attribute *attr, char *buf)
1673 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1675 status = get_u32(&result, ACER_CAP_THREEG);
1676 if (ACPI_SUCCESS(status))
1677 return sprintf(buf, "%u\n", result);
1678 return sprintf(buf, "Read error\n");
1681 static ssize_t set_bool_threeg(struct device *dev,
1682 struct device_attribute *attr, const char *buf, size_t count)
1684 u32 tmp = simple_strtoul(buf, NULL, 10);
1685 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1686 pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
1688 if (ACPI_FAILURE(status))
1692 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1695 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1698 pr_info("This interface sysfs will be removed in 2014 - used by: %s\n",
1700 switch (interface->type) {
1702 return sprintf(buf, "AMW0\n");
1704 return sprintf(buf, "AMW0 v2\n");
1706 return sprintf(buf, "WMID\n");
1708 return sprintf(buf, "WMID v2\n");
1710 return sprintf(buf, "Error!\n");
1714 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1716 static void acer_wmi_notify(u32 value, void *context)
1718 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1719 union acpi_object *obj;
1720 struct event_return_value return_value;
1723 const struct key_entry *key;
1726 status = wmi_get_event_data(value, &response);
1727 if (status != AE_OK) {
1728 pr_warn("bad event status 0x%x\n", status);
1732 obj = (union acpi_object *)response.pointer;
1736 if (obj->type != ACPI_TYPE_BUFFER) {
1737 pr_warn("Unknown response received %d\n", obj->type);
1741 if (obj->buffer.length != 8) {
1742 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1747 return_value = *((struct event_return_value *)obj->buffer.pointer);
1750 switch (return_value.function) {
1751 case WMID_HOTKEY_EVENT:
1752 device_state = return_value.device_state;
1753 pr_debug("device state: 0x%x\n", device_state);
1755 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1756 return_value.key_num);
1758 pr_warn("Unknown key number - 0x%x\n",
1759 return_value.key_num);
1761 scancode = return_value.key_num;
1762 switch (key->keycode) {
1765 if (has_cap(ACER_CAP_WIRELESS))
1766 rfkill_set_sw_state(wireless_rfkill,
1767 !(device_state & ACER_WMID3_GDS_WIRELESS));
1768 if (has_cap(ACER_CAP_THREEG))
1769 rfkill_set_sw_state(threeg_rfkill,
1770 !(device_state & ACER_WMID3_GDS_THREEG));
1771 if (has_cap(ACER_CAP_BLUETOOTH))
1772 rfkill_set_sw_state(bluetooth_rfkill,
1773 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1775 case KEY_TOUCHPAD_TOGGLE:
1776 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1777 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1779 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1782 case WMID_ACCEL_EVENT:
1783 acer_gsensor_event();
1786 pr_warn("Unknown function number - %d - %d\n",
1787 return_value.function, return_value.key_num);
1792 static acpi_status __init
1793 wmid3_set_lm_mode(struct lm_input_params *params,
1794 struct lm_return_value *return_value)
1797 union acpi_object *obj;
1799 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1800 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1802 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1803 if (ACPI_FAILURE(status))
1806 obj = output.pointer;
1810 else if (obj->type != ACPI_TYPE_BUFFER) {
1814 if (obj->buffer.length != 4) {
1815 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1820 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1826 static int __init acer_wmi_enable_ec_raw(void)
1828 struct lm_return_value return_value;
1830 struct lm_input_params params = {
1831 .function_num = 0x1,
1832 .commun_devices = 0xFFFF,
1834 .lm_status = 0x00, /* Launch Manager Deactive */
1837 status = wmid3_set_lm_mode(¶ms, &return_value);
1839 if (return_value.error_code || return_value.ec_return_value)
1840 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1841 return_value.error_code,
1842 return_value.ec_return_value);
1844 pr_info("Enabled EC raw mode\n");
1849 static int __init acer_wmi_enable_lm(void)
1851 struct lm_return_value return_value;
1853 struct lm_input_params params = {
1854 .function_num = 0x1,
1855 .commun_devices = 0xFFFF,
1857 .lm_status = 0x01, /* Launch Manager Active */
1860 status = wmid3_set_lm_mode(¶ms, &return_value);
1862 if (return_value.error_code || return_value.ec_return_value)
1863 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1864 return_value.error_code,
1865 return_value.ec_return_value);
1870 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1871 void *ctx, void **retval)
1873 *(acpi_handle *)retval = ah;
1877 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1883 BUG_ON(!name || !ah);
1886 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1887 (void *)name, &handle);
1889 if (ACPI_SUCCESS(status)) {
1897 static int __init acer_wmi_accel_setup(void)
1901 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1905 interface->capability |= ACER_CAP_ACCEL;
1907 acer_wmi_accel_dev = input_allocate_device();
1908 if (!acer_wmi_accel_dev)
1911 acer_wmi_accel_dev->open = acer_gsensor_open;
1913 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1914 acer_wmi_accel_dev->phys = "wmi/input1";
1915 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1916 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1917 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1918 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1919 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1921 err = input_register_device(acer_wmi_accel_dev);
1928 input_free_device(acer_wmi_accel_dev);
1932 static void acer_wmi_accel_destroy(void)
1934 input_unregister_device(acer_wmi_accel_dev);
1937 static int __init acer_wmi_input_setup(void)
1942 acer_wmi_input_dev = input_allocate_device();
1943 if (!acer_wmi_input_dev)
1946 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1947 acer_wmi_input_dev->phys = "wmi/input0";
1948 acer_wmi_input_dev->id.bustype = BUS_HOST;
1950 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1954 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1955 acer_wmi_notify, NULL);
1956 if (ACPI_FAILURE(status)) {
1958 goto err_free_keymap;
1961 err = input_register_device(acer_wmi_input_dev);
1963 goto err_uninstall_notifier;
1967 err_uninstall_notifier:
1968 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1970 sparse_keymap_free(acer_wmi_input_dev);
1972 input_free_device(acer_wmi_input_dev);
1976 static void acer_wmi_input_destroy(void)
1978 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1979 sparse_keymap_free(acer_wmi_input_dev);
1980 input_unregister_device(acer_wmi_input_dev);
1986 static u32 get_wmid_devices(void)
1988 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1989 union acpi_object *obj;
1993 status = wmi_query_block(WMID_GUID2, 1, &out);
1994 if (ACPI_FAILURE(status))
1997 obj = (union acpi_object *) out.pointer;
1999 if (obj->type == ACPI_TYPE_BUFFER &&
2000 (obj->buffer.length == sizeof(u32) ||
2001 obj->buffer.length == sizeof(u64))) {
2002 devices = *((u32 *) obj->buffer.pointer);
2003 } else if (obj->type == ACPI_TYPE_INTEGER) {
2004 devices = (u32) obj->integer.value;
2015 static int acer_platform_probe(struct platform_device *device)
2019 if (has_cap(ACER_CAP_MAILLED)) {
2020 err = acer_led_init(&device->dev);
2025 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2026 err = acer_backlight_init(&device->dev);
2028 goto error_brightness;
2031 err = acer_rfkill_init(&device->dev);
2038 if (has_cap(ACER_CAP_BRIGHTNESS))
2039 acer_backlight_exit();
2041 if (has_cap(ACER_CAP_MAILLED))
2047 static int acer_platform_remove(struct platform_device *device)
2049 if (has_cap(ACER_CAP_MAILLED))
2051 if (has_cap(ACER_CAP_BRIGHTNESS))
2052 acer_backlight_exit();
2058 #ifdef CONFIG_PM_SLEEP
2059 static int acer_suspend(struct device *dev)
2062 struct acer_data *data = &interface->data;
2067 if (has_cap(ACER_CAP_MAILLED)) {
2068 get_u32(&value, ACER_CAP_MAILLED);
2069 set_u32(LED_OFF, ACER_CAP_MAILLED);
2070 data->mailled = value;
2073 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2074 get_u32(&value, ACER_CAP_BRIGHTNESS);
2075 data->brightness = value;
2081 static int acer_resume(struct device *dev)
2083 struct acer_data *data = &interface->data;
2088 if (has_cap(ACER_CAP_MAILLED))
2089 set_u32(data->mailled, ACER_CAP_MAILLED);
2091 if (has_cap(ACER_CAP_BRIGHTNESS))
2092 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2094 if (has_cap(ACER_CAP_ACCEL))
2095 acer_gsensor_init();
2100 #define acer_suspend NULL
2101 #define acer_resume NULL
2104 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2106 static void acer_platform_shutdown(struct platform_device *device)
2108 struct acer_data *data = &interface->data;
2113 if (has_cap(ACER_CAP_MAILLED))
2114 set_u32(LED_OFF, ACER_CAP_MAILLED);
2117 static struct platform_driver acer_platform_driver = {
2122 .probe = acer_platform_probe,
2123 .remove = acer_platform_remove,
2124 .shutdown = acer_platform_shutdown,
2127 static struct platform_device *acer_platform_device;
2129 static int remove_sysfs(struct platform_device *device)
2131 if (has_cap(ACER_CAP_THREEG))
2132 device_remove_file(&device->dev, &dev_attr_threeg);
2134 device_remove_file(&device->dev, &dev_attr_interface);
2139 static int __init create_sysfs(void)
2141 int retval = -ENOMEM;
2143 if (has_cap(ACER_CAP_THREEG)) {
2144 retval = device_create_file(&acer_platform_device->dev,
2150 retval = device_create_file(&acer_platform_device->dev,
2151 &dev_attr_interface);
2158 remove_sysfs(acer_platform_device);
2162 static void remove_debugfs(void)
2164 debugfs_remove(interface->debug.devices);
2165 debugfs_remove(interface->debug.root);
2168 static int __init create_debugfs(void)
2170 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2171 if (!interface->debug.root) {
2172 pr_err("Failed to create debugfs directory");
2176 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2177 interface->debug.root,
2178 &interface->debug.wmid_devices);
2179 if (!interface->debug.devices)
2189 static int __init acer_wmi_init(void)
2193 pr_info("Acer Laptop ACPI-WMI Extras\n");
2195 if (dmi_check_system(acer_blacklist)) {
2196 pr_info("Blacklisted hardware detected - not loading\n");
2203 * Detect which ACPI-WMI interface we're using.
2205 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2206 interface = &AMW0_V2_interface;
2208 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2209 interface = &wmid_interface;
2211 if (wmi_has_guid(WMID_GUID3))
2212 interface = &wmid_v2_interface;
2215 dmi_walk(type_aa_dmi_decode, NULL);
2217 if (wmi_has_guid(WMID_GUID2) && interface) {
2218 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2219 pr_err("Unable to detect available WMID devices\n");
2222 /* WMID always provides brightness methods */
2223 interface->capability |= ACER_CAP_BRIGHTNESS;
2224 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2225 pr_err("No WMID device detection method found\n");
2229 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2230 interface = &AMW0_interface;
2232 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2233 pr_err("Unable to detect available AMW0 devices\n");
2238 if (wmi_has_guid(AMW0_GUID1))
2239 AMW0_find_mailled();
2242 pr_err("No or unsupported WMI interface, unable to load\n");
2248 if (dmi_check_system(video_vendor_dmi_table))
2249 acpi_video_dmi_promote_vendor();
2250 if (acpi_video_backlight_support()) {
2251 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2252 pr_info("Brightness must be controlled by acpi video driver\n");
2254 pr_info("Disabling ACPI video driver\n");
2255 acpi_video_unregister_backlight();
2258 if (wmi_has_guid(WMID_GUID3)) {
2260 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2261 pr_err("Cannot enable EC raw mode\n");
2264 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2265 pr_err("Cannot enable Launch Manager mode\n");
2268 } else if (ec_raw_mode) {
2269 pr_info("No WMID EC raw mode enable method\n");
2272 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2273 err = acer_wmi_input_setup();
2278 acer_wmi_accel_setup();
2280 err = platform_driver_register(&acer_platform_driver);
2282 pr_err("Unable to register platform driver\n");
2283 goto error_platform_register;
2286 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2287 if (!acer_platform_device) {
2289 goto error_device_alloc;
2292 err = platform_device_add(acer_platform_device);
2294 goto error_device_add;
2296 err = create_sysfs();
2298 goto error_create_sys;
2300 if (wmi_has_guid(WMID_GUID2)) {
2301 interface->debug.wmid_devices = get_wmid_devices();
2302 err = create_debugfs();
2304 goto error_create_debugfs;
2307 /* Override any initial settings with values from the commandline */
2308 acer_commandline_init();
2312 error_create_debugfs:
2313 remove_sysfs(acer_platform_device);
2315 platform_device_del(acer_platform_device);
2317 platform_device_put(acer_platform_device);
2319 platform_driver_unregister(&acer_platform_driver);
2320 error_platform_register:
2321 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2322 acer_wmi_input_destroy();
2323 if (has_cap(ACER_CAP_ACCEL))
2324 acer_wmi_accel_destroy();
2329 static void __exit acer_wmi_exit(void)
2331 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2332 acer_wmi_input_destroy();
2334 if (has_cap(ACER_CAP_ACCEL))
2335 acer_wmi_accel_destroy();
2337 remove_sysfs(acer_platform_device);
2339 platform_device_unregister(acer_platform_device);
2340 platform_driver_unregister(&acer_platform_driver);
2342 pr_info("Acer Laptop WMI Extras unloaded\n");
2346 module_init(acer_wmi_init);
2347 module_exit(acer_wmi_exit);