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>
45 #include <acpi/acpi_drivers.h>
46 #include <acpi/video.h>
48 MODULE_AUTHOR("Carlos Corbacho");
49 MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
50 MODULE_LICENSE("GPL");
54 * Meaning is unknown - this number is required for writing to ACPI for AMW0
55 * (it's also used in acerhk when directly accessing the BIOS)
57 #define ACER_AMW0_WRITE 0x9610
60 * Bit masks for the AMW0 interface
62 #define ACER_AMW0_WIRELESS_MASK 0x35
63 #define ACER_AMW0_BLUETOOTH_MASK 0x34
64 #define ACER_AMW0_MAILLED_MASK 0x31
67 * Method IDs for WMID interface
69 #define ACER_WMID_GET_WIRELESS_METHODID 1
70 #define ACER_WMID_GET_BLUETOOTH_METHODID 2
71 #define ACER_WMID_GET_BRIGHTNESS_METHODID 3
72 #define ACER_WMID_SET_WIRELESS_METHODID 4
73 #define ACER_WMID_SET_BLUETOOTH_METHODID 5
74 #define ACER_WMID_SET_BRIGHTNESS_METHODID 6
75 #define ACER_WMID_GET_THREEG_METHODID 10
76 #define ACER_WMID_SET_THREEG_METHODID 11
79 * Acer ACPI method GUIDs
81 #define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
82 #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
83 #define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
84 #define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
85 #define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
88 * Acer ACPI event GUIDs
90 #define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
92 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
93 MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
94 MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
96 enum acer_wmi_event_ids {
97 WMID_HOTKEY_EVENT = 0x1,
98 WMID_ACCEL_EVENT = 0x5,
101 static const struct key_entry acer_wmi_keymap[] = {
102 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
103 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
104 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
105 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
106 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
107 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
108 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
109 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
110 {KE_KEY, 0x29, {KEY_PROG3} }, /* P_Key for TM8372 */
111 {KE_IGNORE, 0x41, {KEY_MUTE} },
112 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
113 {KE_IGNORE, 0x4d, {KEY_PREVIOUSSONG} },
114 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
115 {KE_IGNORE, 0x4e, {KEY_NEXTSONG} },
116 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
117 {KE_IGNORE, 0x4f, {KEY_PLAYPAUSE} },
118 {KE_IGNORE, 0x45, {KEY_STOP} },
119 {KE_IGNORE, 0x50, {KEY_STOP} },
120 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
121 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
122 {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
123 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
124 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
125 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
126 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
127 {KE_IGNORE, 0x81, {KEY_SLEEP} },
128 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
129 {KE_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} },
136 static struct input_dev *acer_wmi_input_dev;
137 static struct input_dev *acer_wmi_accel_dev;
139 struct event_return_value {
144 } __attribute__((packed));
147 * GUID3 Get Device Status device flags
149 #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
150 #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
151 #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
152 #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
153 #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
155 struct lm_input_params {
156 u8 function_num; /* Function Number */
157 u16 commun_devices; /* Communication type devices default status */
158 u16 devices; /* Other type devices default status */
159 u8 lm_status; /* Launch Manager Status */
161 } __attribute__((packed));
163 struct lm_return_value {
164 u8 error_code; /* Error Code */
165 u8 ec_return_value; /* EC Return Value */
167 } __attribute__((packed));
169 struct wmid3_gds_set_input_param { /* Set Device Status input parameter */
170 u8 function_num; /* Function Number */
171 u8 hotkey_number; /* Hotkey Number */
172 u16 devices; /* Set Device */
173 u8 volume_value; /* Volume Value */
174 } __attribute__((packed));
176 struct wmid3_gds_get_input_param { /* Get Device Status input parameter */
177 u8 function_num; /* Function Number */
178 u8 hotkey_number; /* Hotkey Number */
179 u16 devices; /* Get Device */
180 } __attribute__((packed));
182 struct wmid3_gds_return_value { /* Get Device Status return value*/
183 u8 error_code; /* Error Code */
184 u8 ec_return_value; /* EC Return Value */
185 u16 devices; /* Current Device Status */
187 } __attribute__((packed));
189 struct hotkey_function_type_aa {
193 u16 commun_func_bitmap;
194 u16 application_func_bitmap;
195 u16 media_func_bitmap;
196 u16 display_func_bitmap;
197 u16 others_func_bitmap;
198 u8 commun_fn_key_number;
199 } __attribute__((packed));
202 * Interface capability flags
204 #define ACER_CAP_MAILLED (1<<0)
205 #define ACER_CAP_WIRELESS (1<<1)
206 #define ACER_CAP_BLUETOOTH (1<<2)
207 #define ACER_CAP_BRIGHTNESS (1<<3)
208 #define ACER_CAP_THREEG (1<<4)
209 #define ACER_CAP_ACCEL (1<<5)
210 #define ACER_CAP_ANY (0xFFFFFFFF)
213 * Interface type flags
215 enum interface_flags {
222 #define ACER_DEFAULT_WIRELESS 0
223 #define ACER_DEFAULT_BLUETOOTH 0
224 #define ACER_DEFAULT_MAILLED 0
225 #define ACER_DEFAULT_THREEG 0
227 static int max_brightness = 0xF;
229 static int mailled = -1;
230 static int brightness = -1;
231 static int threeg = -1;
232 static int force_series;
233 static bool ec_raw_mode;
234 static bool has_type_aa;
235 static u16 commun_func_bitmap;
236 static u8 commun_fn_key_number;
238 module_param(mailled, int, 0444);
239 module_param(brightness, int, 0444);
240 module_param(threeg, int, 0444);
241 module_param(force_series, int, 0444);
242 module_param(ec_raw_mode, bool, 0444);
243 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
244 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
245 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
246 MODULE_PARM_DESC(force_series, "Force a different laptop series");
247 MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
257 struct dentry *devices;
261 static struct rfkill *wireless_rfkill;
262 static struct rfkill *bluetooth_rfkill;
263 static struct rfkill *threeg_rfkill;
264 static bool rfkill_inited;
266 /* Each low-level interface must define at least some of the following */
267 struct wmi_interface {
268 /* The WMI device type */
271 /* The capabilities this interface provides */
274 /* Private data for the current interface */
275 struct acer_data data;
277 /* debugfs entries associated with this interface */
278 struct acer_debug debug;
281 /* The static interface pointer, points to the currently detected interface */
282 static struct wmi_interface *interface;
285 * Embedded Controller quirks
286 * Some laptops require us to directly access the EC to either enable or query
287 * features that are not available through WMI.
297 static struct quirk_entry *quirks;
299 static void set_quirks(void)
305 interface->capability |= ACER_CAP_MAILLED;
307 if (quirks->brightness)
308 interface->capability |= ACER_CAP_BRIGHTNESS;
311 static int dmi_matched(const struct dmi_system_id *dmi)
313 quirks = dmi->driver_data;
317 static struct quirk_entry quirk_unknown = {
320 static struct quirk_entry quirk_acer_aspire_1520 = {
324 static struct quirk_entry quirk_acer_travelmate_2490 = {
328 /* This AMW0 laptop has no bluetooth */
329 static struct quirk_entry quirk_medion_md_98300 = {
333 static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
337 static struct quirk_entry quirk_lenovo_ideapad_s205 = {
341 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
342 static struct dmi_system_id acer_blacklist[] = {
344 .ident = "Acer Aspire One (SSD)",
346 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
347 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
351 .ident = "Acer Aspire One (HDD)",
353 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
354 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
360 static struct dmi_system_id acer_quirks[] = {
362 .callback = dmi_matched,
363 .ident = "Acer Aspire 1360",
365 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
366 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
368 .driver_data = &quirk_acer_aspire_1520,
371 .callback = dmi_matched,
372 .ident = "Acer Aspire 1520",
374 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
375 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
377 .driver_data = &quirk_acer_aspire_1520,
380 .callback = dmi_matched,
381 .ident = "Acer Aspire 3100",
383 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
384 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
386 .driver_data = &quirk_acer_travelmate_2490,
389 .callback = dmi_matched,
390 .ident = "Acer Aspire 3610",
392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
395 .driver_data = &quirk_acer_travelmate_2490,
398 .callback = dmi_matched,
399 .ident = "Acer Aspire 5100",
401 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
402 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
404 .driver_data = &quirk_acer_travelmate_2490,
407 .callback = dmi_matched,
408 .ident = "Acer Aspire 5610",
410 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
411 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
413 .driver_data = &quirk_acer_travelmate_2490,
416 .callback = dmi_matched,
417 .ident = "Acer Aspire 5630",
419 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
420 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
422 .driver_data = &quirk_acer_travelmate_2490,
425 .callback = dmi_matched,
426 .ident = "Acer Aspire 5650",
428 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
429 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
431 .driver_data = &quirk_acer_travelmate_2490,
434 .callback = dmi_matched,
435 .ident = "Acer Aspire 5680",
437 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
438 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
440 .driver_data = &quirk_acer_travelmate_2490,
443 .callback = dmi_matched,
444 .ident = "Acer Aspire 9110",
446 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
447 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
449 .driver_data = &quirk_acer_travelmate_2490,
452 .callback = dmi_matched,
453 .ident = "Acer TravelMate 2490",
455 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
458 .driver_data = &quirk_acer_travelmate_2490,
461 .callback = dmi_matched,
462 .ident = "Acer TravelMate 4200",
464 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
465 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
467 .driver_data = &quirk_acer_travelmate_2490,
470 .callback = dmi_matched,
471 .ident = "Fujitsu Siemens Amilo Li 1718",
473 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
474 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
476 .driver_data = &quirk_fujitsu_amilo_li_1718,
479 .callback = dmi_matched,
480 .ident = "Medion MD 98300",
482 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
483 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
485 .driver_data = &quirk_medion_md_98300,
488 .callback = dmi_matched,
489 .ident = "Lenovo Ideapad S205",
491 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
492 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
494 .driver_data = &quirk_lenovo_ideapad_s205,
497 .callback = dmi_matched,
498 .ident = "Lenovo Ideapad S205 (Brazos)",
500 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
501 DMI_MATCH(DMI_PRODUCT_NAME, "Brazos"),
503 .driver_data = &quirk_lenovo_ideapad_s205,
506 .callback = dmi_matched,
507 .ident = "Lenovo 3000 N200",
509 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
510 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
512 .driver_data = &quirk_fujitsu_amilo_li_1718,
517 static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
519 interface->capability &= ~ACER_CAP_BRIGHTNESS;
520 pr_info("Brightness must be controlled by generic video driver\n");
524 static const struct dmi_system_id video_vendor_dmi_table[] = {
526 .callback = video_set_backlight_video_vendor,
527 .ident = "Acer TravelMate 4750",
529 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
530 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"),
534 .callback = video_set_backlight_video_vendor,
535 .ident = "Acer Extensa 5235",
537 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
538 DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"),
542 .callback = video_set_backlight_video_vendor,
543 .ident = "Acer TravelMate 5760",
545 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
546 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"),
550 .callback = video_set_backlight_video_vendor,
551 .ident = "Acer Aspire 5750",
553 DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
554 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"),
560 /* Find which quirks are needed for a particular vendor/ model pair */
561 static void find_quirks(void)
564 dmi_check_system(acer_quirks);
565 } else if (force_series == 2490) {
566 quirks = &quirk_acer_travelmate_2490;
570 quirks = &quirk_unknown;
576 * General interface convenience methods
579 static bool has_cap(u32 cap)
581 if ((interface->capability & cap) != 0)
588 * AMW0 (V1) interface
605 static acpi_status wmab_execute(struct wmab_args *regbuf,
606 struct acpi_buffer *result)
608 struct acpi_buffer input;
610 input.length = sizeof(struct wmab_args);
611 input.pointer = (u8 *)regbuf;
613 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
618 static acpi_status AMW0_get_u32(u32 *value, u32 cap)
624 case ACER_CAP_MAILLED:
625 switch (quirks->mailled) {
627 err = ec_read(0xA, &result);
630 *value = (result >> 7) & 0x1;
634 case ACER_CAP_WIRELESS:
635 switch (quirks->wireless) {
637 err = ec_read(0x7B, &result);
640 *value = result & 0x1;
643 err = ec_read(0x71, &result);
646 *value = result & 0x1;
649 err = ec_read(0x78, &result);
652 *value = result & 0x1;
655 err = ec_read(0xA, &result);
658 *value = (result >> 2) & 0x1;
662 case ACER_CAP_BLUETOOTH:
663 switch (quirks->bluetooth) {
665 err = ec_read(0xA, &result);
668 *value = (result >> 4) & 0x1;
672 case ACER_CAP_BRIGHTNESS:
673 switch (quirks->brightness) {
675 err = ec_read(0x83, &result);
688 static acpi_status AMW0_set_u32(u32 value, u32 cap)
690 struct wmab_args args;
692 args.eax = ACER_AMW0_WRITE;
693 args.ebx = value ? (1<<8) : 0;
694 args.ecx = args.edx = 0;
697 case ACER_CAP_MAILLED:
699 return AE_BAD_PARAMETER;
700 args.ebx |= ACER_AMW0_MAILLED_MASK;
702 case ACER_CAP_WIRELESS:
704 return AE_BAD_PARAMETER;
705 args.ebx |= ACER_AMW0_WIRELESS_MASK;
707 case ACER_CAP_BLUETOOTH:
709 return AE_BAD_PARAMETER;
710 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
712 case ACER_CAP_BRIGHTNESS:
713 if (value > max_brightness)
714 return AE_BAD_PARAMETER;
715 switch (quirks->brightness) {
717 return ec_write(0x83, value);
724 /* Actually do the set */
725 return wmab_execute(&args, NULL);
728 static acpi_status AMW0_find_mailled(void)
730 struct wmab_args args;
732 acpi_status status = AE_OK;
733 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
734 union acpi_object *obj;
737 args.ebx = args.ecx = args.edx = 0;
739 status = wmab_execute(&args, &out);
740 if (ACPI_FAILURE(status))
743 obj = (union acpi_object *) out.pointer;
744 if (obj && obj->type == ACPI_TYPE_BUFFER &&
745 obj->buffer.length == sizeof(struct wmab_ret)) {
746 ret = *((struct wmab_ret *) obj->buffer.pointer);
753 interface->capability |= ACER_CAP_MAILLED;
760 static int AMW0_set_cap_acpi_check_device_found;
762 static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
763 u32 level, void *context, void **retval)
765 AMW0_set_cap_acpi_check_device_found = 1;
769 static const struct acpi_device_id norfkill_ids[] = {
773 { "SNY5001", 0}, /* sony-laptop in charge */
777 static int AMW0_set_cap_acpi_check_device(void)
779 const struct acpi_device_id *id;
781 for (id = norfkill_ids; id->id[0]; id++)
782 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
784 return AMW0_set_cap_acpi_check_device_found;
787 static acpi_status AMW0_set_capabilities(void)
789 struct wmab_args args;
792 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
793 union acpi_object *obj;
796 * On laptops with this strange GUID (non Acer), normal probing doesn't
799 if (wmi_has_guid(AMW0_GUID2)) {
800 if ((quirks != &quirk_unknown) ||
801 !AMW0_set_cap_acpi_check_device())
802 interface->capability |= ACER_CAP_WIRELESS;
806 args.eax = ACER_AMW0_WRITE;
807 args.ecx = args.edx = 0;
809 args.ebx = 0xa2 << 8;
810 args.ebx |= ACER_AMW0_WIRELESS_MASK;
812 status = wmab_execute(&args, &out);
813 if (ACPI_FAILURE(status))
817 if (obj && obj->type == ACPI_TYPE_BUFFER &&
818 obj->buffer.length == sizeof(struct wmab_ret)) {
819 ret = *((struct wmab_ret *) obj->buffer.pointer);
826 interface->capability |= ACER_CAP_WIRELESS;
829 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
832 * It's ok to use existing buffer for next wmab_execute call.
833 * But we need to kfree(out.pointer) if next wmab_execute fail.
835 status = wmab_execute(&args, &out);
836 if (ACPI_FAILURE(status))
839 obj = (union acpi_object *) out.pointer;
840 if (obj && obj->type == ACPI_TYPE_BUFFER
841 && obj->buffer.length == sizeof(struct wmab_ret)) {
842 ret = *((struct wmab_ret *) obj->buffer.pointer);
849 interface->capability |= ACER_CAP_BLUETOOTH;
852 * This appears to be safe to enable, since all Wistron based laptops
853 * appear to use the same EC register for brightness, even if they
854 * differ for wireless, etc
856 if (quirks->brightness >= 0)
857 interface->capability |= ACER_CAP_BRIGHTNESS;
865 static struct wmi_interface AMW0_interface = {
869 static struct wmi_interface AMW0_V2_interface = {
870 .type = ACER_AMW0_V2,
874 * New interface (The WMID interface)
877 WMI_execute_u32(u32 method_id, u32 in, u32 *out)
879 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
880 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
881 union acpi_object *obj;
885 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
887 if (ACPI_FAILURE(status))
890 obj = (union acpi_object *) result.pointer;
892 if (obj->type == ACPI_TYPE_BUFFER &&
893 (obj->buffer.length == sizeof(u32) ||
894 obj->buffer.length == sizeof(u64))) {
895 tmp = *((u32 *) obj->buffer.pointer);
896 } else if (obj->type == ACPI_TYPE_INTEGER) {
897 tmp = (u32) obj->integer.value;
904 kfree(result.pointer);
909 static acpi_status WMID_get_u32(u32 *value, u32 cap)
913 u32 result, method_id = 0;
916 case ACER_CAP_WIRELESS:
917 method_id = ACER_WMID_GET_WIRELESS_METHODID;
919 case ACER_CAP_BLUETOOTH:
920 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
922 case ACER_CAP_BRIGHTNESS:
923 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
925 case ACER_CAP_THREEG:
926 method_id = ACER_WMID_GET_THREEG_METHODID;
928 case ACER_CAP_MAILLED:
929 if (quirks->mailled == 1) {
937 status = WMI_execute_u32(method_id, 0, &result);
939 if (ACPI_SUCCESS(status))
945 static acpi_status WMID_set_u32(u32 value, u32 cap)
951 case ACER_CAP_BRIGHTNESS:
952 if (value > max_brightness)
953 return AE_BAD_PARAMETER;
954 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
956 case ACER_CAP_WIRELESS:
958 return AE_BAD_PARAMETER;
959 method_id = ACER_WMID_SET_WIRELESS_METHODID;
961 case ACER_CAP_BLUETOOTH:
963 return AE_BAD_PARAMETER;
964 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
966 case ACER_CAP_THREEG:
968 return AE_BAD_PARAMETER;
969 method_id = ACER_WMID_SET_THREEG_METHODID;
971 case ACER_CAP_MAILLED:
973 return AE_BAD_PARAMETER;
974 if (quirks->mailled == 1) {
975 param = value ? 0x92 : 0x93;
977 i8042_command(¶m, 0x1059);
985 return WMI_execute_u32(method_id, (u32)value, NULL);
988 static acpi_status wmid3_get_device_status(u32 *value, u16 device)
990 struct wmid3_gds_return_value return_value;
992 union acpi_object *obj;
993 struct wmid3_gds_get_input_param params = {
995 .hotkey_number = commun_fn_key_number,
998 struct acpi_buffer input = {
999 sizeof(struct wmid3_gds_get_input_param),
1002 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1004 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
1005 if (ACPI_FAILURE(status))
1008 obj = output.pointer;
1012 else if (obj->type != ACPI_TYPE_BUFFER) {
1016 if (obj->buffer.length != 8) {
1017 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1022 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1025 if (return_value.error_code || return_value.ec_return_value)
1026 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
1028 return_value.error_code,
1029 return_value.ec_return_value);
1031 *value = !!(return_value.devices & device);
1036 static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
1041 case ACER_CAP_WIRELESS:
1042 device = ACER_WMID3_GDS_WIRELESS;
1044 case ACER_CAP_BLUETOOTH:
1045 device = ACER_WMID3_GDS_BLUETOOTH;
1047 case ACER_CAP_THREEG:
1048 device = ACER_WMID3_GDS_THREEG;
1053 return wmid3_get_device_status(value, device);
1056 static acpi_status wmid3_set_device_status(u32 value, u16 device)
1058 struct wmid3_gds_return_value return_value;
1060 union acpi_object *obj;
1062 struct wmid3_gds_get_input_param get_params = {
1063 .function_num = 0x1,
1064 .hotkey_number = commun_fn_key_number,
1065 .devices = commun_func_bitmap,
1067 struct acpi_buffer get_input = {
1068 sizeof(struct wmid3_gds_get_input_param),
1071 struct wmid3_gds_set_input_param set_params = {
1072 .function_num = 0x2,
1073 .hotkey_number = commun_fn_key_number,
1074 .devices = commun_func_bitmap,
1076 struct acpi_buffer set_input = {
1077 sizeof(struct wmid3_gds_set_input_param),
1080 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1081 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
1083 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &get_input, &output);
1084 if (ACPI_FAILURE(status))
1087 obj = output.pointer;
1091 else if (obj->type != ACPI_TYPE_BUFFER) {
1095 if (obj->buffer.length != 8) {
1096 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1101 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1104 if (return_value.error_code || return_value.ec_return_value) {
1105 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1106 return_value.error_code,
1107 return_value.ec_return_value);
1111 devices = return_value.devices;
1112 set_params.devices = (value) ? (devices | device) : (devices & ~device);
1114 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &set_input, &output2);
1115 if (ACPI_FAILURE(status))
1118 obj = output2.pointer;
1122 else if (obj->type != ACPI_TYPE_BUFFER) {
1126 if (obj->buffer.length != 4) {
1127 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1132 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1135 if (return_value.error_code || return_value.ec_return_value)
1136 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1137 return_value.error_code,
1138 return_value.ec_return_value);
1143 static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1148 case ACER_CAP_WIRELESS:
1149 device = ACER_WMID3_GDS_WIRELESS;
1151 case ACER_CAP_BLUETOOTH:
1152 device = ACER_WMID3_GDS_BLUETOOTH;
1154 case ACER_CAP_THREEG:
1155 device = ACER_WMID3_GDS_THREEG;
1160 return wmid3_set_device_status(value, device);
1163 static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
1165 struct hotkey_function_type_aa *type_aa;
1167 /* We are looking for OEM-specific Type AAh */
1168 if (header->type != 0xAA)
1172 type_aa = (struct hotkey_function_type_aa *) header;
1174 pr_info("Function bitmap for Communication Button: 0x%x\n",
1175 type_aa->commun_func_bitmap);
1176 commun_func_bitmap = type_aa->commun_func_bitmap;
1178 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1179 interface->capability |= ACER_CAP_WIRELESS;
1180 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1181 interface->capability |= ACER_CAP_THREEG;
1182 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1183 interface->capability |= ACER_CAP_BLUETOOTH;
1185 commun_fn_key_number = type_aa->commun_fn_key_number;
1188 static acpi_status WMID_set_capabilities(void)
1190 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1191 union acpi_object *obj;
1195 status = wmi_query_block(WMID_GUID2, 1, &out);
1196 if (ACPI_FAILURE(status))
1199 obj = (union acpi_object *) out.pointer;
1201 if (obj->type == ACPI_TYPE_BUFFER &&
1202 (obj->buffer.length == sizeof(u32) ||
1203 obj->buffer.length == sizeof(u64))) {
1204 devices = *((u32 *) obj->buffer.pointer);
1205 } else if (obj->type == ACPI_TYPE_INTEGER) {
1206 devices = (u32) obj->integer.value;
1213 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1215 interface->capability |= ACER_CAP_WIRELESS;
1217 interface->capability |= ACER_CAP_THREEG;
1219 interface->capability |= ACER_CAP_BLUETOOTH;
1221 if (!(devices & 0x20))
1222 max_brightness = 0x9;
1228 static struct wmi_interface wmid_interface = {
1232 static struct wmi_interface wmid_v2_interface = {
1233 .type = ACER_WMID_v2,
1237 * Generic Device (interface-independent)
1240 static acpi_status get_u32(u32 *value, u32 cap)
1242 acpi_status status = AE_ERROR;
1244 switch (interface->type) {
1246 status = AMW0_get_u32(value, cap);
1249 if (cap == ACER_CAP_MAILLED) {
1250 status = AMW0_get_u32(value, cap);
1254 status = WMID_get_u32(value, cap);
1257 if (cap & (ACER_CAP_WIRELESS |
1258 ACER_CAP_BLUETOOTH |
1260 status = wmid_v2_get_u32(value, cap);
1261 else if (wmi_has_guid(WMID_GUID2))
1262 status = WMID_get_u32(value, cap);
1269 static acpi_status set_u32(u32 value, u32 cap)
1273 if (interface->capability & cap) {
1274 switch (interface->type) {
1276 return AMW0_set_u32(value, cap);
1278 if (cap == ACER_CAP_MAILLED)
1279 return AMW0_set_u32(value, cap);
1282 * On some models, some WMID methods don't toggle
1283 * properly. For those cases, we want to run the AMW0
1284 * method afterwards to be certain we've really toggled
1287 if (cap == ACER_CAP_WIRELESS ||
1288 cap == ACER_CAP_BLUETOOTH) {
1289 status = WMID_set_u32(value, cap);
1290 if (ACPI_FAILURE(status))
1293 return AMW0_set_u32(value, cap);
1296 return WMID_set_u32(value, cap);
1298 if (cap & (ACER_CAP_WIRELESS |
1299 ACER_CAP_BLUETOOTH |
1301 return wmid_v2_set_u32(value, cap);
1302 else if (wmi_has_guid(WMID_GUID2))
1303 return WMID_set_u32(value, cap);
1305 return AE_BAD_PARAMETER;
1308 return AE_BAD_PARAMETER;
1311 static void __init acer_commandline_init(void)
1314 * These will all fail silently if the value given is invalid, or the
1315 * capability isn't available on the given interface
1318 set_u32(mailled, ACER_CAP_MAILLED);
1319 if (!has_type_aa && threeg >= 0)
1320 set_u32(threeg, ACER_CAP_THREEG);
1321 if (brightness >= 0)
1322 set_u32(brightness, ACER_CAP_BRIGHTNESS);
1326 * LED device (Mail LED only, no other LEDs known yet)
1328 static void mail_led_set(struct led_classdev *led_cdev,
1329 enum led_brightness value)
1331 set_u32(value, ACER_CAP_MAILLED);
1334 static struct led_classdev mail_led = {
1335 .name = "acer-wmi::mail",
1336 .brightness_set = mail_led_set,
1339 static int acer_led_init(struct device *dev)
1341 return led_classdev_register(dev, &mail_led);
1344 static void acer_led_exit(void)
1346 set_u32(LED_OFF, ACER_CAP_MAILLED);
1347 led_classdev_unregister(&mail_led);
1353 static struct backlight_device *acer_backlight_device;
1355 static int read_brightness(struct backlight_device *bd)
1358 get_u32(&value, ACER_CAP_BRIGHTNESS);
1362 static int update_bl_status(struct backlight_device *bd)
1364 int intensity = bd->props.brightness;
1366 if (bd->props.power != FB_BLANK_UNBLANK)
1368 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1371 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1376 static const struct backlight_ops acer_bl_ops = {
1377 .get_brightness = read_brightness,
1378 .update_status = update_bl_status,
1381 static int acer_backlight_init(struct device *dev)
1383 struct backlight_properties props;
1384 struct backlight_device *bd;
1386 memset(&props, 0, sizeof(struct backlight_properties));
1387 props.type = BACKLIGHT_PLATFORM;
1388 props.max_brightness = max_brightness;
1389 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1392 pr_err("Could not register Acer backlight device\n");
1393 acer_backlight_device = NULL;
1397 acer_backlight_device = bd;
1399 bd->props.power = FB_BLANK_UNBLANK;
1400 bd->props.brightness = read_brightness(bd);
1401 backlight_update_status(bd);
1405 static void acer_backlight_exit(void)
1407 backlight_device_unregister(acer_backlight_device);
1411 * Accelerometer device
1413 static acpi_handle gsensor_handle;
1415 static int acer_gsensor_init(void)
1418 struct acpi_buffer output;
1419 union acpi_object out_obj;
1421 output.length = sizeof(out_obj);
1422 output.pointer = &out_obj;
1423 status = acpi_evaluate_object(gsensor_handle, "_INI", NULL, &output);
1424 if (ACPI_FAILURE(status))
1430 static int acer_gsensor_open(struct input_dev *input)
1432 return acer_gsensor_init();
1435 static int acer_gsensor_event(void)
1438 struct acpi_buffer output;
1439 union acpi_object out_obj[5];
1441 if (!has_cap(ACER_CAP_ACCEL))
1444 output.length = sizeof(out_obj);
1445 output.pointer = out_obj;
1447 status = acpi_evaluate_object(gsensor_handle, "RDVL", NULL, &output);
1448 if (ACPI_FAILURE(status))
1451 if (out_obj->package.count != 4)
1454 input_report_abs(acer_wmi_accel_dev, ABS_X,
1455 (s16)out_obj->package.elements[0].integer.value);
1456 input_report_abs(acer_wmi_accel_dev, ABS_Y,
1457 (s16)out_obj->package.elements[1].integer.value);
1458 input_report_abs(acer_wmi_accel_dev, ABS_Z,
1459 (s16)out_obj->package.elements[2].integer.value);
1460 input_sync(acer_wmi_accel_dev);
1467 static void acer_rfkill_update(struct work_struct *ignored);
1468 static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1469 static void acer_rfkill_update(struct work_struct *ignored)
1474 if (has_cap(ACER_CAP_WIRELESS)) {
1475 status = get_u32(&state, ACER_CAP_WIRELESS);
1476 if (ACPI_SUCCESS(status)) {
1477 if (quirks->wireless == 3)
1478 rfkill_set_hw_state(wireless_rfkill, !state);
1480 rfkill_set_sw_state(wireless_rfkill, !state);
1484 if (has_cap(ACER_CAP_BLUETOOTH)) {
1485 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1486 if (ACPI_SUCCESS(status))
1487 rfkill_set_sw_state(bluetooth_rfkill, !state);
1490 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
1491 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
1492 if (ACPI_SUCCESS(status))
1493 rfkill_set_sw_state(threeg_rfkill, !state);
1496 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
1499 static int acer_rfkill_set(void *data, bool blocked)
1502 u32 cap = (unsigned long)data;
1504 if (rfkill_inited) {
1505 status = set_u32(!blocked, cap);
1506 if (ACPI_FAILURE(status))
1513 static const struct rfkill_ops acer_rfkill_ops = {
1514 .set_block = acer_rfkill_set,
1517 static struct rfkill *acer_rfkill_register(struct device *dev,
1518 enum rfkill_type type,
1519 char *name, u32 cap)
1522 struct rfkill *rfkill_dev;
1526 rfkill_dev = rfkill_alloc(name, dev, type,
1528 (void *)(unsigned long)cap);
1530 return ERR_PTR(-ENOMEM);
1532 status = get_u32(&state, cap);
1534 err = rfkill_register(rfkill_dev);
1536 rfkill_destroy(rfkill_dev);
1537 return ERR_PTR(err);
1540 if (ACPI_SUCCESS(status))
1541 rfkill_set_sw_state(rfkill_dev, !state);
1546 static int acer_rfkill_init(struct device *dev)
1550 if (has_cap(ACER_CAP_WIRELESS)) {
1551 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1552 "acer-wireless", ACER_CAP_WIRELESS);
1553 if (IS_ERR(wireless_rfkill)) {
1554 err = PTR_ERR(wireless_rfkill);
1555 goto error_wireless;
1559 if (has_cap(ACER_CAP_BLUETOOTH)) {
1560 bluetooth_rfkill = acer_rfkill_register(dev,
1561 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1562 ACER_CAP_BLUETOOTH);
1563 if (IS_ERR(bluetooth_rfkill)) {
1564 err = PTR_ERR(bluetooth_rfkill);
1565 goto error_bluetooth;
1569 if (has_cap(ACER_CAP_THREEG)) {
1570 threeg_rfkill = acer_rfkill_register(dev,
1571 RFKILL_TYPE_WWAN, "acer-threeg",
1573 if (IS_ERR(threeg_rfkill)) {
1574 err = PTR_ERR(threeg_rfkill);
1579 rfkill_inited = true;
1581 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1582 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1583 schedule_delayed_work(&acer_rfkill_work,
1584 round_jiffies_relative(HZ));
1589 if (has_cap(ACER_CAP_BLUETOOTH)) {
1590 rfkill_unregister(bluetooth_rfkill);
1591 rfkill_destroy(bluetooth_rfkill);
1594 if (has_cap(ACER_CAP_WIRELESS)) {
1595 rfkill_unregister(wireless_rfkill);
1596 rfkill_destroy(wireless_rfkill);
1602 static void acer_rfkill_exit(void)
1604 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1605 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
1606 cancel_delayed_work_sync(&acer_rfkill_work);
1608 if (has_cap(ACER_CAP_WIRELESS)) {
1609 rfkill_unregister(wireless_rfkill);
1610 rfkill_destroy(wireless_rfkill);
1613 if (has_cap(ACER_CAP_BLUETOOTH)) {
1614 rfkill_unregister(bluetooth_rfkill);
1615 rfkill_destroy(bluetooth_rfkill);
1618 if (has_cap(ACER_CAP_THREEG)) {
1619 rfkill_unregister(threeg_rfkill);
1620 rfkill_destroy(threeg_rfkill);
1628 static ssize_t show_bool_threeg(struct device *dev,
1629 struct device_attribute *attr, char *buf)
1634 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1636 status = get_u32(&result, ACER_CAP_THREEG);
1637 if (ACPI_SUCCESS(status))
1638 return sprintf(buf, "%u\n", result);
1639 return sprintf(buf, "Read error\n");
1642 static ssize_t set_bool_threeg(struct device *dev,
1643 struct device_attribute *attr, const char *buf, size_t count)
1645 u32 tmp = simple_strtoul(buf, NULL, 10);
1646 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
1647 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1649 if (ACPI_FAILURE(status))
1653 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
1656 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1659 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
1661 switch (interface->type) {
1663 return sprintf(buf, "AMW0\n");
1665 return sprintf(buf, "AMW0 v2\n");
1667 return sprintf(buf, "WMID\n");
1669 return sprintf(buf, "WMID v2\n");
1671 return sprintf(buf, "Error!\n");
1675 static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
1677 static void acer_wmi_notify(u32 value, void *context)
1679 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1680 union acpi_object *obj;
1681 struct event_return_value return_value;
1684 const struct key_entry *key;
1687 status = wmi_get_event_data(value, &response);
1688 if (status != AE_OK) {
1689 pr_warn("bad event status 0x%x\n", status);
1693 obj = (union acpi_object *)response.pointer;
1697 if (obj->type != ACPI_TYPE_BUFFER) {
1698 pr_warn("Unknown response received %d\n", obj->type);
1702 if (obj->buffer.length != 8) {
1703 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1708 return_value = *((struct event_return_value *)obj->buffer.pointer);
1711 switch (return_value.function) {
1712 case WMID_HOTKEY_EVENT:
1713 device_state = return_value.device_state;
1714 pr_debug("device state: 0x%x\n", device_state);
1716 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1717 return_value.key_num);
1719 pr_warn("Unknown key number - 0x%x\n",
1720 return_value.key_num);
1722 scancode = return_value.key_num;
1723 switch (key->keycode) {
1726 if (has_cap(ACER_CAP_WIRELESS))
1727 rfkill_set_sw_state(wireless_rfkill,
1728 !(device_state & ACER_WMID3_GDS_WIRELESS));
1729 if (has_cap(ACER_CAP_THREEG))
1730 rfkill_set_sw_state(threeg_rfkill,
1731 !(device_state & ACER_WMID3_GDS_THREEG));
1732 if (has_cap(ACER_CAP_BLUETOOTH))
1733 rfkill_set_sw_state(bluetooth_rfkill,
1734 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1736 case KEY_TOUCHPAD_TOGGLE:
1737 scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ?
1738 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF;
1740 sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true);
1743 case WMID_ACCEL_EVENT:
1744 acer_gsensor_event();
1747 pr_warn("Unknown function number - %d - %d\n",
1748 return_value.function, return_value.key_num);
1754 wmid3_set_lm_mode(struct lm_input_params *params,
1755 struct lm_return_value *return_value)
1758 union acpi_object *obj;
1760 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1761 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1763 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1764 if (ACPI_FAILURE(status))
1767 obj = output.pointer;
1771 else if (obj->type != ACPI_TYPE_BUFFER) {
1775 if (obj->buffer.length != 4) {
1776 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
1781 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1787 static int acer_wmi_enable_ec_raw(void)
1789 struct lm_return_value return_value;
1791 struct lm_input_params params = {
1792 .function_num = 0x1,
1793 .commun_devices = 0xFFFF,
1795 .lm_status = 0x00, /* Launch Manager Deactive */
1798 status = wmid3_set_lm_mode(¶ms, &return_value);
1800 if (return_value.error_code || return_value.ec_return_value)
1801 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1802 return_value.error_code,
1803 return_value.ec_return_value);
1805 pr_info("Enabled EC raw mode\n");
1810 static int acer_wmi_enable_lm(void)
1812 struct lm_return_value return_value;
1814 struct lm_input_params params = {
1815 .function_num = 0x1,
1816 .commun_devices = 0xFFFF,
1818 .lm_status = 0x01, /* Launch Manager Active */
1821 status = wmid3_set_lm_mode(¶ms, &return_value);
1823 if (return_value.error_code || return_value.ec_return_value)
1824 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1825 return_value.error_code,
1826 return_value.ec_return_value);
1831 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
1832 void *ctx, void **retval)
1834 *(acpi_handle *)retval = ah;
1838 static int __init acer_wmi_get_handle(const char *name, const char *prop,
1844 BUG_ON(!name || !ah);
1847 status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
1848 (void *)name, &handle);
1850 if (ACPI_SUCCESS(status)) {
1858 static int __init acer_wmi_accel_setup(void)
1862 err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
1866 interface->capability |= ACER_CAP_ACCEL;
1868 acer_wmi_accel_dev = input_allocate_device();
1869 if (!acer_wmi_accel_dev)
1872 acer_wmi_accel_dev->open = acer_gsensor_open;
1874 acer_wmi_accel_dev->name = "Acer BMA150 accelerometer";
1875 acer_wmi_accel_dev->phys = "wmi/input1";
1876 acer_wmi_accel_dev->id.bustype = BUS_HOST;
1877 acer_wmi_accel_dev->evbit[0] = BIT_MASK(EV_ABS);
1878 input_set_abs_params(acer_wmi_accel_dev, ABS_X, -16384, 16384, 0, 0);
1879 input_set_abs_params(acer_wmi_accel_dev, ABS_Y, -16384, 16384, 0, 0);
1880 input_set_abs_params(acer_wmi_accel_dev, ABS_Z, -16384, 16384, 0, 0);
1882 err = input_register_device(acer_wmi_accel_dev);
1889 input_free_device(acer_wmi_accel_dev);
1893 static void acer_wmi_accel_destroy(void)
1895 input_unregister_device(acer_wmi_accel_dev);
1898 static int __init acer_wmi_input_setup(void)
1903 acer_wmi_input_dev = input_allocate_device();
1904 if (!acer_wmi_input_dev)
1907 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1908 acer_wmi_input_dev->phys = "wmi/input0";
1909 acer_wmi_input_dev->id.bustype = BUS_HOST;
1911 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1915 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1916 acer_wmi_notify, NULL);
1917 if (ACPI_FAILURE(status)) {
1919 goto err_free_keymap;
1922 err = input_register_device(acer_wmi_input_dev);
1924 goto err_uninstall_notifier;
1928 err_uninstall_notifier:
1929 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1931 sparse_keymap_free(acer_wmi_input_dev);
1933 input_free_device(acer_wmi_input_dev);
1937 static void acer_wmi_input_destroy(void)
1939 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1940 sparse_keymap_free(acer_wmi_input_dev);
1941 input_unregister_device(acer_wmi_input_dev);
1947 static u32 get_wmid_devices(void)
1949 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1950 union acpi_object *obj;
1954 status = wmi_query_block(WMID_GUID2, 1, &out);
1955 if (ACPI_FAILURE(status))
1958 obj = (union acpi_object *) out.pointer;
1960 if (obj->type == ACPI_TYPE_BUFFER &&
1961 (obj->buffer.length == sizeof(u32) ||
1962 obj->buffer.length == sizeof(u64))) {
1963 devices = *((u32 *) obj->buffer.pointer);
1964 } else if (obj->type == ACPI_TYPE_INTEGER) {
1965 devices = (u32) obj->integer.value;
1976 static int acer_platform_probe(struct platform_device *device)
1980 if (has_cap(ACER_CAP_MAILLED)) {
1981 err = acer_led_init(&device->dev);
1986 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1987 err = acer_backlight_init(&device->dev);
1989 goto error_brightness;
1992 err = acer_rfkill_init(&device->dev);
1999 if (has_cap(ACER_CAP_BRIGHTNESS))
2000 acer_backlight_exit();
2002 if (has_cap(ACER_CAP_MAILLED))
2008 static int acer_platform_remove(struct platform_device *device)
2010 if (has_cap(ACER_CAP_MAILLED))
2012 if (has_cap(ACER_CAP_BRIGHTNESS))
2013 acer_backlight_exit();
2019 static int acer_suspend(struct device *dev)
2022 struct acer_data *data = &interface->data;
2027 if (has_cap(ACER_CAP_MAILLED)) {
2028 get_u32(&value, ACER_CAP_MAILLED);
2029 set_u32(LED_OFF, ACER_CAP_MAILLED);
2030 data->mailled = value;
2033 if (has_cap(ACER_CAP_BRIGHTNESS)) {
2034 get_u32(&value, ACER_CAP_BRIGHTNESS);
2035 data->brightness = value;
2041 static int acer_resume(struct device *dev)
2043 struct acer_data *data = &interface->data;
2048 if (has_cap(ACER_CAP_MAILLED))
2049 set_u32(data->mailled, ACER_CAP_MAILLED);
2051 if (has_cap(ACER_CAP_BRIGHTNESS))
2052 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
2054 if (has_cap(ACER_CAP_ACCEL))
2055 acer_gsensor_init();
2060 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
2062 static void acer_platform_shutdown(struct platform_device *device)
2064 struct acer_data *data = &interface->data;
2069 if (has_cap(ACER_CAP_MAILLED))
2070 set_u32(LED_OFF, ACER_CAP_MAILLED);
2073 static struct platform_driver acer_platform_driver = {
2076 .owner = THIS_MODULE,
2079 .probe = acer_platform_probe,
2080 .remove = acer_platform_remove,
2081 .shutdown = acer_platform_shutdown,
2084 static struct platform_device *acer_platform_device;
2086 static int remove_sysfs(struct platform_device *device)
2088 if (has_cap(ACER_CAP_THREEG))
2089 device_remove_file(&device->dev, &dev_attr_threeg);
2091 device_remove_file(&device->dev, &dev_attr_interface);
2096 static int create_sysfs(void)
2098 int retval = -ENOMEM;
2100 if (has_cap(ACER_CAP_THREEG)) {
2101 retval = device_create_file(&acer_platform_device->dev,
2107 retval = device_create_file(&acer_platform_device->dev,
2108 &dev_attr_interface);
2115 remove_sysfs(acer_platform_device);
2119 static void remove_debugfs(void)
2121 debugfs_remove(interface->debug.devices);
2122 debugfs_remove(interface->debug.root);
2125 static int create_debugfs(void)
2127 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
2128 if (!interface->debug.root) {
2129 pr_err("Failed to create debugfs directory");
2133 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
2134 interface->debug.root,
2135 &interface->debug.wmid_devices);
2136 if (!interface->debug.devices)
2146 static int __init acer_wmi_init(void)
2150 pr_info("Acer Laptop ACPI-WMI Extras\n");
2152 if (dmi_check_system(acer_blacklist)) {
2153 pr_info("Blacklisted hardware detected - not loading\n");
2160 * Detect which ACPI-WMI interface we're using.
2162 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2163 interface = &AMW0_V2_interface;
2165 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
2166 interface = &wmid_interface;
2168 if (wmi_has_guid(WMID_GUID3))
2169 interface = &wmid_v2_interface;
2172 dmi_walk(type_aa_dmi_decode, NULL);
2174 if (wmi_has_guid(WMID_GUID2) && interface) {
2175 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
2176 pr_err("Unable to detect available WMID devices\n");
2179 /* WMID always provides brightness methods */
2180 interface->capability |= ACER_CAP_BRIGHTNESS;
2181 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
2182 pr_err("No WMID device detection method found\n");
2186 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
2187 interface = &AMW0_interface;
2189 if (ACPI_FAILURE(AMW0_set_capabilities())) {
2190 pr_err("Unable to detect available AMW0 devices\n");
2195 if (wmi_has_guid(AMW0_GUID1))
2196 AMW0_find_mailled();
2199 pr_err("No or unsupported WMI interface, unable to load\n");
2205 if (dmi_check_system(video_vendor_dmi_table))
2206 acpi_video_dmi_promote_vendor();
2207 if (acpi_video_backlight_support()) {
2208 interface->capability &= ~ACER_CAP_BRIGHTNESS;
2209 pr_info("Brightness must be controlled by acpi video driver\n");
2211 pr_info("Disabling ACPI video driver\n");
2212 acpi_video_unregister();
2215 if (wmi_has_guid(WMID_GUID3)) {
2217 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
2218 pr_err("Cannot enable EC raw mode\n");
2221 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
2222 pr_err("Cannot enable Launch Manager mode\n");
2225 } else if (ec_raw_mode) {
2226 pr_info("No WMID EC raw mode enable method\n");
2229 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2230 err = acer_wmi_input_setup();
2235 acer_wmi_accel_setup();
2237 err = platform_driver_register(&acer_platform_driver);
2239 pr_err("Unable to register platform driver\n");
2240 goto error_platform_register;
2243 acer_platform_device = platform_device_alloc("acer-wmi", -1);
2244 if (!acer_platform_device) {
2246 goto error_device_alloc;
2249 err = platform_device_add(acer_platform_device);
2251 goto error_device_add;
2253 err = create_sysfs();
2255 goto error_create_sys;
2257 if (wmi_has_guid(WMID_GUID2)) {
2258 interface->debug.wmid_devices = get_wmid_devices();
2259 err = create_debugfs();
2261 goto error_create_debugfs;
2264 /* Override any initial settings with values from the commandline */
2265 acer_commandline_init();
2269 error_create_debugfs:
2270 remove_sysfs(acer_platform_device);
2272 platform_device_del(acer_platform_device);
2274 platform_device_put(acer_platform_device);
2276 platform_driver_unregister(&acer_platform_driver);
2277 error_platform_register:
2278 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2279 acer_wmi_input_destroy();
2280 if (has_cap(ACER_CAP_ACCEL))
2281 acer_wmi_accel_destroy();
2286 static void __exit acer_wmi_exit(void)
2288 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2289 acer_wmi_input_destroy();
2291 if (has_cap(ACER_CAP_ACCEL))
2292 acer_wmi_accel_destroy();
2294 remove_sysfs(acer_platform_device);
2296 platform_device_unregister(acer_platform_device);
2297 platform_driver_unregister(&acer_platform_driver);
2299 pr_info("Acer Laptop WMI Extras unloaded\n");
2303 module_init(acer_wmi_init);
2304 module_exit(acer_wmi_exit);