2 * ideapad-laptop.c - Lenovo IdeaPad ACPI Extras
4 * Copyright © 2010 Intel Corporation
5 * Copyright © 2010 David Woodhouse <dwmw2@infradead.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/acpi.h>
30 #include <linux/rfkill.h>
31 #include <linux/platform_device.h>
32 #include <linux/input.h>
33 #include <linux/input/sparse-keymap.h>
34 #include <linux/backlight.h>
36 #include <linux/debugfs.h>
37 #include <linux/seq_file.h>
38 #include <linux/i8042.h>
39 #include <linux/dmi.h>
40 #include <linux/device.h>
41 #include <acpi/video.h>
43 #define IDEAPAD_RFKILL_DEV_NUM (3)
45 #define CFG_BT_BIT (16)
46 #define CFG_3G_BIT (17)
47 #define CFG_WIFI_BIT (18)
48 #define CFG_CAMERA_BIT (19)
50 #if IS_ENABLED(CONFIG_ACPI_WMI)
51 static const char *const ideapad_wmi_fnesc_events
[] = {
52 "26CAB2E5-5CF1-46AE-AAC3-4A12B6BA50E6", /* Yoga 3 */
53 "56322276-8493-4CE8-A783-98C991274F5E", /* Yoga 700 */
75 VPCCMD_R_ODD
, /* 0x21 */
80 VPCCMD_R_SPECIAL_BUTTONS
= 0x31,
81 VPCCMD_W_BL_POWER
= 0x33,
84 struct ideapad_rfk_priv
{
86 struct ideapad_private
*priv
;
89 struct ideapad_private
{
90 struct acpi_device
*adev
;
91 struct rfkill
*rfk
[IDEAPAD_RFKILL_DEV_NUM
];
92 struct ideapad_rfk_priv rfk_priv
[IDEAPAD_RFKILL_DEV_NUM
];
93 struct platform_device
*platform_device
;
94 struct input_dev
*inputdev
;
95 struct backlight_device
*blightdev
;
98 bool has_hw_rfkill_switch
;
99 const char *fnesc_guid
;
102 static bool no_bt_rfkill
;
103 module_param(no_bt_rfkill
, bool, 0444);
104 MODULE_PARM_DESC(no_bt_rfkill
, "No rfkill for bluetooth.");
109 #define IDEAPAD_EC_TIMEOUT (100) /* in ms */
111 static int read_method_int(acpi_handle handle
, const char *method
, int *val
)
114 unsigned long long result
;
116 status
= acpi_evaluate_integer(handle
, (char *)method
, NULL
, &result
);
117 if (ACPI_FAILURE(status
)) {
126 static int method_vpcr(acpi_handle handle
, int cmd
, int *ret
)
129 unsigned long long result
;
130 struct acpi_object_list params
;
131 union acpi_object in_obj
;
134 params
.pointer
= &in_obj
;
135 in_obj
.type
= ACPI_TYPE_INTEGER
;
136 in_obj
.integer
.value
= cmd
;
138 status
= acpi_evaluate_integer(handle
, "VPCR", ¶ms
, &result
);
140 if (ACPI_FAILURE(status
)) {
149 static int method_vpcw(acpi_handle handle
, int cmd
, int data
)
151 struct acpi_object_list params
;
152 union acpi_object in_obj
[2];
156 params
.pointer
= in_obj
;
157 in_obj
[0].type
= ACPI_TYPE_INTEGER
;
158 in_obj
[0].integer
.value
= cmd
;
159 in_obj
[1].type
= ACPI_TYPE_INTEGER
;
160 in_obj
[1].integer
.value
= data
;
162 status
= acpi_evaluate_object(handle
, "VPCW", ¶ms
, NULL
);
168 static int read_ec_data(acpi_handle handle
, int cmd
, unsigned long *data
)
171 unsigned long int end_jiffies
;
173 if (method_vpcw(handle
, 1, cmd
))
176 for (end_jiffies
= jiffies
+(HZ
)*IDEAPAD_EC_TIMEOUT
/1000+1;
177 time_before(jiffies
, end_jiffies
);) {
179 if (method_vpcr(handle
, 1, &val
))
182 if (method_vpcr(handle
, 0, &val
))
188 pr_err("timeout in read_ec_cmd\n");
192 static int write_ec_cmd(acpi_handle handle
, int cmd
, unsigned long data
)
195 unsigned long int end_jiffies
;
197 if (method_vpcw(handle
, 0, data
))
199 if (method_vpcw(handle
, 1, cmd
))
202 for (end_jiffies
= jiffies
+(HZ
)*IDEAPAD_EC_TIMEOUT
/1000+1;
203 time_before(jiffies
, end_jiffies
);) {
205 if (method_vpcr(handle
, 1, &val
))
210 pr_err("timeout in write_ec_cmd\n");
217 static int debugfs_status_show(struct seq_file
*s
, void *data
)
219 struct ideapad_private
*priv
= s
->private;
225 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL_MAX
, &value
))
226 seq_printf(s
, "Backlight max:\t%lu\n", value
);
227 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL
, &value
))
228 seq_printf(s
, "Backlight now:\t%lu\n", value
);
229 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL_POWER
, &value
))
230 seq_printf(s
, "BL power value:\t%s\n", value
? "On" : "Off");
231 seq_printf(s
, "=====================\n");
233 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_RF
, &value
))
234 seq_printf(s
, "Radio status:\t%s(%lu)\n",
235 value
? "On" : "Off", value
);
236 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_WIFI
, &value
))
237 seq_printf(s
, "Wifi status:\t%s(%lu)\n",
238 value
? "On" : "Off", value
);
239 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_BT
, &value
))
240 seq_printf(s
, "BT status:\t%s(%lu)\n",
241 value
? "On" : "Off", value
);
242 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_3G
, &value
))
243 seq_printf(s
, "3G status:\t%s(%lu)\n",
244 value
? "On" : "Off", value
);
245 seq_printf(s
, "=====================\n");
247 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_TOUCHPAD
, &value
))
248 seq_printf(s
, "Touchpad status:%s(%lu)\n",
249 value
? "On" : "Off", value
);
250 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_CAMERA
, &value
))
251 seq_printf(s
, "Camera status:\t%s(%lu)\n",
252 value
? "On" : "Off", value
);
257 static int debugfs_status_open(struct inode
*inode
, struct file
*file
)
259 return single_open(file
, debugfs_status_show
, inode
->i_private
);
262 static const struct file_operations debugfs_status_fops
= {
263 .owner
= THIS_MODULE
,
264 .open
= debugfs_status_open
,
267 .release
= single_release
,
270 static int debugfs_cfg_show(struct seq_file
*s
, void *data
)
272 struct ideapad_private
*priv
= s
->private;
275 seq_printf(s
, "cfg: N/A\n");
277 seq_printf(s
, "cfg: 0x%.8lX\n\nCapability: ",
279 if (test_bit(CFG_BT_BIT
, &priv
->cfg
))
280 seq_printf(s
, "Bluetooth ");
281 if (test_bit(CFG_3G_BIT
, &priv
->cfg
))
282 seq_printf(s
, "3G ");
283 if (test_bit(CFG_WIFI_BIT
, &priv
->cfg
))
284 seq_printf(s
, "Wireless ");
285 if (test_bit(CFG_CAMERA_BIT
, &priv
->cfg
))
286 seq_printf(s
, "Camera ");
287 seq_printf(s
, "\nGraphic: ");
288 switch ((priv
->cfg
)&0x700) {
290 seq_printf(s
, "Intel");
293 seq_printf(s
, "ATI");
296 seq_printf(s
, "Nvidia");
299 seq_printf(s
, "Intel and ATI");
302 seq_printf(s
, "Intel and Nvidia");
310 static int debugfs_cfg_open(struct inode
*inode
, struct file
*file
)
312 return single_open(file
, debugfs_cfg_show
, inode
->i_private
);
315 static const struct file_operations debugfs_cfg_fops
= {
316 .owner
= THIS_MODULE
,
317 .open
= debugfs_cfg_open
,
320 .release
= single_release
,
323 static int ideapad_debugfs_init(struct ideapad_private
*priv
)
327 priv
->debug
= debugfs_create_dir("ideapad", NULL
);
328 if (priv
->debug
== NULL
) {
329 pr_err("failed to create debugfs directory");
333 node
= debugfs_create_file("cfg", S_IRUGO
, priv
->debug
, priv
,
336 pr_err("failed to create cfg in debugfs");
340 node
= debugfs_create_file("status", S_IRUGO
, priv
->debug
, priv
,
341 &debugfs_status_fops
);
343 pr_err("failed to create status in debugfs");
353 static void ideapad_debugfs_exit(struct ideapad_private
*priv
)
355 debugfs_remove_recursive(priv
->debug
);
362 static ssize_t
show_ideapad_cam(struct device
*dev
,
363 struct device_attribute
*attr
,
366 unsigned long result
;
367 struct ideapad_private
*priv
= dev_get_drvdata(dev
);
369 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_CAMERA
, &result
))
370 return sprintf(buf
, "-1\n");
371 return sprintf(buf
, "%lu\n", result
);
374 static ssize_t
store_ideapad_cam(struct device
*dev
,
375 struct device_attribute
*attr
,
376 const char *buf
, size_t count
)
379 struct ideapad_private
*priv
= dev_get_drvdata(dev
);
383 if (sscanf(buf
, "%i", &state
) != 1)
385 ret
= write_ec_cmd(priv
->adev
->handle
, VPCCMD_W_CAMERA
, state
);
391 static DEVICE_ATTR(camera_power
, 0644, show_ideapad_cam
, store_ideapad_cam
);
393 static ssize_t
show_ideapad_fan(struct device
*dev
,
394 struct device_attribute
*attr
,
397 unsigned long result
;
398 struct ideapad_private
*priv
= dev_get_drvdata(dev
);
400 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_FAN
, &result
))
401 return sprintf(buf
, "-1\n");
402 return sprintf(buf
, "%lu\n", result
);
405 static ssize_t
store_ideapad_fan(struct device
*dev
,
406 struct device_attribute
*attr
,
407 const char *buf
, size_t count
)
410 struct ideapad_private
*priv
= dev_get_drvdata(dev
);
414 if (sscanf(buf
, "%i", &state
) != 1)
416 if (state
< 0 || state
> 4 || state
== 3)
418 ret
= write_ec_cmd(priv
->adev
->handle
, VPCCMD_W_FAN
, state
);
424 static DEVICE_ATTR(fan_mode
, 0644, show_ideapad_fan
, store_ideapad_fan
);
426 static struct attribute
*ideapad_attributes
[] = {
427 &dev_attr_camera_power
.attr
,
428 &dev_attr_fan_mode
.attr
,
432 static umode_t
ideapad_is_visible(struct kobject
*kobj
,
433 struct attribute
*attr
,
436 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
437 struct ideapad_private
*priv
= dev_get_drvdata(dev
);
440 if (attr
== &dev_attr_camera_power
.attr
)
441 supported
= test_bit(CFG_CAMERA_BIT
, &(priv
->cfg
));
442 else if (attr
== &dev_attr_fan_mode
.attr
) {
444 supported
= !read_ec_data(priv
->adev
->handle
, VPCCMD_R_FAN
,
449 return supported
? attr
->mode
: 0;
452 static const struct attribute_group ideapad_attribute_group
= {
453 .is_visible
= ideapad_is_visible
,
454 .attrs
= ideapad_attributes
460 struct ideapad_rfk_data
{
467 static const struct ideapad_rfk_data ideapad_rfk_data
[] = {
468 { "ideapad_wlan", CFG_WIFI_BIT
, VPCCMD_W_WIFI
, RFKILL_TYPE_WLAN
},
469 { "ideapad_bluetooth", CFG_BT_BIT
, VPCCMD_W_BT
, RFKILL_TYPE_BLUETOOTH
},
470 { "ideapad_3g", CFG_3G_BIT
, VPCCMD_W_3G
, RFKILL_TYPE_WWAN
},
473 static int ideapad_rfk_set(void *data
, bool blocked
)
475 struct ideapad_rfk_priv
*priv
= data
;
476 int opcode
= ideapad_rfk_data
[priv
->dev
].opcode
;
478 return write_ec_cmd(priv
->priv
->adev
->handle
, opcode
, !blocked
);
481 static struct rfkill_ops ideapad_rfk_ops
= {
482 .set_block
= ideapad_rfk_set
,
485 static void ideapad_sync_rfk_state(struct ideapad_private
*priv
)
487 unsigned long hw_blocked
= 0;
490 if (priv
->has_hw_rfkill_switch
) {
491 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_RF
, &hw_blocked
))
493 hw_blocked
= !hw_blocked
;
496 for (i
= 0; i
< IDEAPAD_RFKILL_DEV_NUM
; i
++)
498 rfkill_set_hw_state(priv
->rfk
[i
], hw_blocked
);
501 static int ideapad_register_rfkill(struct ideapad_private
*priv
, int dev
)
504 unsigned long sw_blocked
;
507 (ideapad_rfk_data
[dev
].type
== RFKILL_TYPE_BLUETOOTH
)) {
508 /* Force to enable bluetooth when no_bt_rfkill=1 */
509 write_ec_cmd(priv
->adev
->handle
,
510 ideapad_rfk_data
[dev
].opcode
, 1);
513 priv
->rfk_priv
[dev
].dev
= dev
;
514 priv
->rfk_priv
[dev
].priv
= priv
;
516 priv
->rfk
[dev
] = rfkill_alloc(ideapad_rfk_data
[dev
].name
,
517 &priv
->platform_device
->dev
,
518 ideapad_rfk_data
[dev
].type
,
520 &priv
->rfk_priv
[dev
]);
524 if (read_ec_data(priv
->adev
->handle
, ideapad_rfk_data
[dev
].opcode
-1,
526 rfkill_init_sw_state(priv
->rfk
[dev
], 0);
528 sw_blocked
= !sw_blocked
;
529 rfkill_init_sw_state(priv
->rfk
[dev
], sw_blocked
);
532 ret
= rfkill_register(priv
->rfk
[dev
]);
534 rfkill_destroy(priv
->rfk
[dev
]);
540 static void ideapad_unregister_rfkill(struct ideapad_private
*priv
, int dev
)
545 rfkill_unregister(priv
->rfk
[dev
]);
546 rfkill_destroy(priv
->rfk
[dev
]);
552 static int ideapad_sysfs_init(struct ideapad_private
*priv
)
554 return sysfs_create_group(&priv
->platform_device
->dev
.kobj
,
555 &ideapad_attribute_group
);
558 static void ideapad_sysfs_exit(struct ideapad_private
*priv
)
560 sysfs_remove_group(&priv
->platform_device
->dev
.kobj
,
561 &ideapad_attribute_group
);
567 static const struct key_entry ideapad_keymap
[] = {
568 { KE_KEY
, 6, { KEY_SWITCHVIDEOMODE
} },
569 { KE_KEY
, 7, { KEY_CAMERA
} },
570 { KE_KEY
, 11, { KEY_F16
} },
571 { KE_KEY
, 13, { KEY_WLAN
} },
572 { KE_KEY
, 16, { KEY_PROG1
} },
573 { KE_KEY
, 17, { KEY_PROG2
} },
574 { KE_KEY
, 64, { KEY_PROG3
} },
575 { KE_KEY
, 65, { KEY_PROG4
} },
576 { KE_KEY
, 66, { KEY_TOUCHPAD_OFF
} },
577 { KE_KEY
, 67, { KEY_TOUCHPAD_ON
} },
578 { KE_KEY
, 128, { KEY_ESC
} },
583 static int ideapad_input_init(struct ideapad_private
*priv
)
585 struct input_dev
*inputdev
;
588 inputdev
= input_allocate_device();
592 inputdev
->name
= "Ideapad extra buttons";
593 inputdev
->phys
= "ideapad/input0";
594 inputdev
->id
.bustype
= BUS_HOST
;
595 inputdev
->dev
.parent
= &priv
->platform_device
->dev
;
597 error
= sparse_keymap_setup(inputdev
, ideapad_keymap
, NULL
);
599 pr_err("Unable to setup input device keymap\n");
603 error
= input_register_device(inputdev
);
605 pr_err("Unable to register input device\n");
606 goto err_free_keymap
;
609 priv
->inputdev
= inputdev
;
613 sparse_keymap_free(inputdev
);
615 input_free_device(inputdev
);
619 static void ideapad_input_exit(struct ideapad_private
*priv
)
621 sparse_keymap_free(priv
->inputdev
);
622 input_unregister_device(priv
->inputdev
);
623 priv
->inputdev
= NULL
;
626 static void ideapad_input_report(struct ideapad_private
*priv
,
627 unsigned long scancode
)
629 sparse_keymap_report_event(priv
->inputdev
, scancode
, 1, true);
632 static void ideapad_input_novokey(struct ideapad_private
*priv
)
634 unsigned long long_pressed
;
636 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_NOVO
, &long_pressed
))
639 ideapad_input_report(priv
, 17);
641 ideapad_input_report(priv
, 16);
644 static void ideapad_check_special_buttons(struct ideapad_private
*priv
)
646 unsigned long bit
, value
;
648 read_ec_data(priv
->adev
->handle
, VPCCMD_R_SPECIAL_BUTTONS
, &value
);
650 for (bit
= 0; bit
< 16; bit
++) {
651 if (test_bit(bit
, &value
)) {
655 /* Thermal Management button */
656 ideapad_input_report(priv
, 65);
659 /* OneKey Theater button */
660 ideapad_input_report(priv
, 64);
663 pr_info("Unknown special button: %lu\n", bit
);
673 static int ideapad_backlight_get_brightness(struct backlight_device
*blightdev
)
675 struct ideapad_private
*priv
= bl_get_data(blightdev
);
681 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL
, &now
))
686 static int ideapad_backlight_update_status(struct backlight_device
*blightdev
)
688 struct ideapad_private
*priv
= bl_get_data(blightdev
);
693 if (write_ec_cmd(priv
->adev
->handle
, VPCCMD_W_BL
,
694 blightdev
->props
.brightness
))
696 if (write_ec_cmd(priv
->adev
->handle
, VPCCMD_W_BL_POWER
,
697 blightdev
->props
.power
== FB_BLANK_POWERDOWN
? 0 : 1))
703 static const struct backlight_ops ideapad_backlight_ops
= {
704 .get_brightness
= ideapad_backlight_get_brightness
,
705 .update_status
= ideapad_backlight_update_status
,
708 static int ideapad_backlight_init(struct ideapad_private
*priv
)
710 struct backlight_device
*blightdev
;
711 struct backlight_properties props
;
712 unsigned long max
, now
, power
;
714 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL_MAX
, &max
))
716 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL
, &now
))
718 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL_POWER
, &power
))
721 memset(&props
, 0, sizeof(struct backlight_properties
));
722 props
.max_brightness
= max
;
723 props
.type
= BACKLIGHT_PLATFORM
;
724 blightdev
= backlight_device_register("ideapad",
725 &priv
->platform_device
->dev
,
727 &ideapad_backlight_ops
,
729 if (IS_ERR(blightdev
)) {
730 pr_err("Could not register backlight device\n");
731 return PTR_ERR(blightdev
);
734 priv
->blightdev
= blightdev
;
735 blightdev
->props
.brightness
= now
;
736 blightdev
->props
.power
= power
? FB_BLANK_UNBLANK
: FB_BLANK_POWERDOWN
;
737 backlight_update_status(blightdev
);
742 static void ideapad_backlight_exit(struct ideapad_private
*priv
)
744 backlight_device_unregister(priv
->blightdev
);
745 priv
->blightdev
= NULL
;
748 static void ideapad_backlight_notify_power(struct ideapad_private
*priv
)
751 struct backlight_device
*blightdev
= priv
->blightdev
;
755 if (read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL_POWER
, &power
))
757 blightdev
->props
.power
= power
? FB_BLANK_UNBLANK
: FB_BLANK_POWERDOWN
;
760 static void ideapad_backlight_notify_brightness(struct ideapad_private
*priv
)
764 /* if we control brightness via acpi video driver */
765 if (priv
->blightdev
== NULL
) {
766 read_ec_data(priv
->adev
->handle
, VPCCMD_R_BL
, &now
);
770 backlight_force_update(priv
->blightdev
, BACKLIGHT_UPDATE_HOTKEY
);
776 static void ideapad_sync_touchpad_state(struct ideapad_private
*priv
)
780 /* Without reading from EC touchpad LED doesn't switch state */
781 if (!read_ec_data(priv
->adev
->handle
, VPCCMD_R_TOUCHPAD
, &value
)) {
782 /* Some IdeaPads don't really turn off touchpad - they only
783 * switch the LED state. We (de)activate KBC AUX port to turn
784 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
785 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
787 i8042_command(¶m
, value
? I8042_CMD_AUX_ENABLE
:
788 I8042_CMD_AUX_DISABLE
);
789 ideapad_input_report(priv
, value
? 67 : 66);
793 static void ideapad_acpi_notify(acpi_handle handle
, u32 event
, void *data
)
795 struct ideapad_private
*priv
= data
;
796 unsigned long vpc1
, vpc2
, vpc_bit
;
798 if (read_ec_data(handle
, VPCCMD_R_VPC1
, &vpc1
))
800 if (read_ec_data(handle
, VPCCMD_R_VPC2
, &vpc2
))
803 vpc1
= (vpc2
<< 8) | vpc1
;
804 for (vpc_bit
= 0; vpc_bit
< 16; vpc_bit
++) {
805 if (test_bit(vpc_bit
, &vpc1
)) {
808 ideapad_sync_rfk_state(priv
);
814 ideapad_input_report(priv
, vpc_bit
);
817 ideapad_sync_touchpad_state(priv
);
820 ideapad_backlight_notify_brightness(priv
);
823 ideapad_input_novokey(priv
);
826 ideapad_backlight_notify_power(priv
);
829 ideapad_check_special_buttons(priv
);
832 pr_info("Unknown event: %lu\n", vpc_bit
);
838 #if IS_ENABLED(CONFIG_ACPI_WMI)
839 static void ideapad_wmi_notify(u32 value
, void *context
)
843 ideapad_input_report(context
, value
);
846 pr_info("Unknown WMI event %u\n", value
);
852 * Some ideapads don't have a hardware rfkill switch, reading VPCCMD_R_RF
853 * always results in 0 on these models, causing ideapad_laptop to wrongly
854 * report all radios as hardware-blocked.
856 static const struct dmi_system_id no_hw_rfkill_list
[] = {
858 .ident
= "Lenovo G40-30",
860 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
861 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo G40-30"),
865 .ident
= "Lenovo G50-30",
867 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
868 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo G50-30"),
872 .ident
= "Lenovo ideapad Y700-15ISK",
874 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
875 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo ideapad Y700-15ISK"),
879 .ident
= "Lenovo ideapad Y700 Touch-15ISK",
881 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
882 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo ideapad Y700 Touch-15ISK"),
886 .ident
= "Lenovo ideapad Y700-17ISK",
888 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
889 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo ideapad Y700-17ISK"),
893 .ident
= "Lenovo Yoga 2 11 / 13 / Pro",
895 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
896 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo Yoga 2"),
900 .ident
= "Lenovo Yoga 2 11 / 13 / Pro",
902 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
903 DMI_MATCH(DMI_BOARD_NAME
, "Yoga2"),
907 .ident
= "Lenovo Yoga 3 1170 / 1470",
909 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
910 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo Yoga 3"),
914 .ident
= "Lenovo Yoga 3 Pro 1370",
916 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
917 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo YOGA 3"),
921 .ident
= "Lenovo Yoga 700",
923 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
924 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo YOGA 700"),
928 .ident
= "Lenovo Yoga 900",
930 DMI_MATCH(DMI_SYS_VENDOR
, "LENOVO"),
931 DMI_MATCH(DMI_PRODUCT_VERSION
, "Lenovo YOGA 900"),
937 static int ideapad_acpi_add(struct platform_device
*pdev
)
941 struct ideapad_private
*priv
;
942 struct acpi_device
*adev
;
944 ret
= acpi_bus_get_device(ACPI_HANDLE(&pdev
->dev
), &adev
);
948 if (read_method_int(adev
->handle
, "_CFG", &cfg
))
951 priv
= devm_kzalloc(&pdev
->dev
, sizeof(*priv
), GFP_KERNEL
);
955 dev_set_drvdata(&pdev
->dev
, priv
);
958 priv
->platform_device
= pdev
;
959 priv
->has_hw_rfkill_switch
= !dmi_check_system(no_hw_rfkill_list
);
961 ret
= ideapad_sysfs_init(priv
);
965 ret
= ideapad_debugfs_init(priv
);
969 ret
= ideapad_input_init(priv
);
974 * On some models without a hw-switch (the yoga 2 13 at least)
975 * VPCCMD_W_RF must be explicitly set to 1 for the wifi to work.
977 if (!priv
->has_hw_rfkill_switch
)
978 write_ec_cmd(priv
->adev
->handle
, VPCCMD_W_RF
, 1);
980 for (i
= 0; i
< IDEAPAD_RFKILL_DEV_NUM
; i
++)
981 if (test_bit(ideapad_rfk_data
[i
].cfgbit
, &priv
->cfg
))
982 ideapad_register_rfkill(priv
, i
);
984 ideapad_sync_rfk_state(priv
);
985 ideapad_sync_touchpad_state(priv
);
987 if (acpi_video_get_backlight_type() == acpi_backlight_vendor
) {
988 ret
= ideapad_backlight_init(priv
);
989 if (ret
&& ret
!= -ENODEV
)
990 goto backlight_failed
;
992 ret
= acpi_install_notify_handler(adev
->handle
,
993 ACPI_DEVICE_NOTIFY
, ideapad_acpi_notify
, priv
);
995 goto notification_failed
;
997 #if IS_ENABLED(CONFIG_ACPI_WMI)
998 for (i
= 0; i
< ARRAY_SIZE(ideapad_wmi_fnesc_events
); i
++) {
999 ret
= wmi_install_notify_handler(ideapad_wmi_fnesc_events
[i
],
1000 ideapad_wmi_notify
, priv
);
1002 priv
->fnesc_guid
= ideapad_wmi_fnesc_events
[i
];
1006 if (ret
!= AE_OK
&& ret
!= AE_NOT_EXIST
)
1007 goto notification_failed_wmi
;
1011 #if IS_ENABLED(CONFIG_ACPI_WMI)
1012 notification_failed_wmi
:
1013 acpi_remove_notify_handler(priv
->adev
->handle
,
1014 ACPI_DEVICE_NOTIFY
, ideapad_acpi_notify
);
1016 notification_failed
:
1017 ideapad_backlight_exit(priv
);
1019 for (i
= 0; i
< IDEAPAD_RFKILL_DEV_NUM
; i
++)
1020 ideapad_unregister_rfkill(priv
, i
);
1021 ideapad_input_exit(priv
);
1023 ideapad_debugfs_exit(priv
);
1025 ideapad_sysfs_exit(priv
);
1029 static int ideapad_acpi_remove(struct platform_device
*pdev
)
1031 struct ideapad_private
*priv
= dev_get_drvdata(&pdev
->dev
);
1034 #if IS_ENABLED(CONFIG_ACPI_WMI)
1035 if (priv
->fnesc_guid
)
1036 wmi_remove_notify_handler(priv
->fnesc_guid
);
1038 acpi_remove_notify_handler(priv
->adev
->handle
,
1039 ACPI_DEVICE_NOTIFY
, ideapad_acpi_notify
);
1040 ideapad_backlight_exit(priv
);
1041 for (i
= 0; i
< IDEAPAD_RFKILL_DEV_NUM
; i
++)
1042 ideapad_unregister_rfkill(priv
, i
);
1043 ideapad_input_exit(priv
);
1044 ideapad_debugfs_exit(priv
);
1045 ideapad_sysfs_exit(priv
);
1046 dev_set_drvdata(&pdev
->dev
, NULL
);
1051 #ifdef CONFIG_PM_SLEEP
1052 static int ideapad_acpi_resume(struct device
*device
)
1054 struct ideapad_private
*priv
;
1058 priv
= dev_get_drvdata(device
);
1060 ideapad_sync_rfk_state(priv
);
1061 ideapad_sync_touchpad_state(priv
);
1065 static SIMPLE_DEV_PM_OPS(ideapad_pm
, NULL
, ideapad_acpi_resume
);
1067 static const struct acpi_device_id ideapad_device_ids
[] = {
1071 MODULE_DEVICE_TABLE(acpi
, ideapad_device_ids
);
1073 static struct platform_driver ideapad_acpi_driver
= {
1074 .probe
= ideapad_acpi_add
,
1075 .remove
= ideapad_acpi_remove
,
1077 .name
= "ideapad_acpi",
1079 .acpi_match_table
= ACPI_PTR(ideapad_device_ids
),
1083 module_platform_driver(ideapad_acpi_driver
);
1085 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
1086 MODULE_DESCRIPTION("IdeaPad ACPI Extras");
1087 MODULE_LICENSE("GPL");