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 BM_CONSERVATION_BIT (5)
47 #define CFG_BT_BIT (16)
48 #define CFG_3G_BIT (17)
49 #define CFG_WIFI_BIT (18)
50 #define CFG_CAMERA_BIT (19)
52 #if IS_ENABLED(CONFIG_ACPI_WMI)
53 static const char *const ideapad_wmi_fnesc_events[] = {
54 "26CAB2E5-5CF1-46AE-AAC3-4A12B6BA50E6", /* Yoga 3 */
55 "56322276-8493-4CE8-A783-98C991274F5E", /* Yoga 700 */
60 BMCMD_CONSERVATION_ON = 3,
61 BMCMD_CONSERVATION_OFF = 5,
82 VPCCMD_R_ODD, /* 0x21 */
87 VPCCMD_R_SPECIAL_BUTTONS = 0x31,
88 VPCCMD_W_BL_POWER = 0x33,
91 struct ideapad_rfk_priv {
93 struct ideapad_private *priv;
96 struct ideapad_private {
97 struct acpi_device *adev;
98 struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
99 struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM];
100 struct platform_device *platform_device;
101 struct input_dev *inputdev;
102 struct backlight_device *blightdev;
103 struct dentry *debug;
105 bool has_hw_rfkill_switch;
106 const char *fnesc_guid;
109 static bool no_bt_rfkill;
110 module_param(no_bt_rfkill, bool, 0444);
111 MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
116 #define IDEAPAD_EC_TIMEOUT (100) /* in ms */
118 static int read_method_int(acpi_handle handle, const char *method, int *val)
121 unsigned long long result;
123 status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
124 if (ACPI_FAILURE(status)) {
133 static int method_gbmd(acpi_handle handle, unsigned long *ret)
137 result = read_method_int(handle, "GBMD", &val);
142 static int method_sbmc(acpi_handle handle, int cmd)
146 status = acpi_execute_simple_method(handle, "SBMC", cmd);
147 return ACPI_FAILURE(status) ? -1 : 0;
150 static int method_vpcr(acpi_handle handle, int cmd, int *ret)
153 unsigned long long result;
154 struct acpi_object_list params;
155 union acpi_object in_obj;
158 params.pointer = &in_obj;
159 in_obj.type = ACPI_TYPE_INTEGER;
160 in_obj.integer.value = cmd;
162 status = acpi_evaluate_integer(handle, "VPCR", ¶ms, &result);
164 if (ACPI_FAILURE(status)) {
173 static int method_vpcw(acpi_handle handle, int cmd, int data)
175 struct acpi_object_list params;
176 union acpi_object in_obj[2];
180 params.pointer = in_obj;
181 in_obj[0].type = ACPI_TYPE_INTEGER;
182 in_obj[0].integer.value = cmd;
183 in_obj[1].type = ACPI_TYPE_INTEGER;
184 in_obj[1].integer.value = data;
186 status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL);
192 static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data)
195 unsigned long int end_jiffies;
197 if (method_vpcw(handle, 1, cmd))
200 for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
201 time_before(jiffies, end_jiffies);) {
203 if (method_vpcr(handle, 1, &val))
206 if (method_vpcr(handle, 0, &val))
212 pr_err("timeout in read_ec_cmd\n");
216 static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
219 unsigned long int end_jiffies;
221 if (method_vpcw(handle, 0, data))
223 if (method_vpcw(handle, 1, cmd))
226 for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1;
227 time_before(jiffies, end_jiffies);) {
229 if (method_vpcr(handle, 1, &val))
234 pr_err("timeout in write_ec_cmd\n");
241 static int debugfs_status_show(struct seq_file *s, void *data)
243 struct ideapad_private *priv = s->private;
249 if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &value))
250 seq_printf(s, "Backlight max:\t%lu\n", value);
251 if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL, &value))
252 seq_printf(s, "Backlight now:\t%lu\n", value);
253 if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &value))
254 seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off");
255 seq_printf(s, "=====================\n");
257 if (!read_ec_data(priv->adev->handle, VPCCMD_R_RF, &value))
258 seq_printf(s, "Radio status:\t%s(%lu)\n",
259 value ? "On" : "Off", value);
260 if (!read_ec_data(priv->adev->handle, VPCCMD_R_WIFI, &value))
261 seq_printf(s, "Wifi status:\t%s(%lu)\n",
262 value ? "On" : "Off", value);
263 if (!read_ec_data(priv->adev->handle, VPCCMD_R_BT, &value))
264 seq_printf(s, "BT status:\t%s(%lu)\n",
265 value ? "On" : "Off", value);
266 if (!read_ec_data(priv->adev->handle, VPCCMD_R_3G, &value))
267 seq_printf(s, "3G status:\t%s(%lu)\n",
268 value ? "On" : "Off", value);
269 seq_printf(s, "=====================\n");
271 if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value))
272 seq_printf(s, "Touchpad status:%s(%lu)\n",
273 value ? "On" : "Off", value);
274 if (!read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &value))
275 seq_printf(s, "Camera status:\t%s(%lu)\n",
276 value ? "On" : "Off", value);
277 seq_puts(s, "=====================\n");
279 if (!method_gbmd(priv->adev->handle, &value)) {
280 seq_printf(s, "Conservation mode:\t%s(%lu)\n",
281 test_bit(BM_CONSERVATION_BIT, &value) ? "On" : "Off",
288 static int debugfs_status_open(struct inode *inode, struct file *file)
290 return single_open(file, debugfs_status_show, inode->i_private);
293 static const struct file_operations debugfs_status_fops = {
294 .owner = THIS_MODULE,
295 .open = debugfs_status_open,
298 .release = single_release,
301 static int debugfs_cfg_show(struct seq_file *s, void *data)
303 struct ideapad_private *priv = s->private;
306 seq_printf(s, "cfg: N/A\n");
308 seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ",
310 if (test_bit(CFG_BT_BIT, &priv->cfg))
311 seq_printf(s, "Bluetooth ");
312 if (test_bit(CFG_3G_BIT, &priv->cfg))
313 seq_printf(s, "3G ");
314 if (test_bit(CFG_WIFI_BIT, &priv->cfg))
315 seq_printf(s, "Wireless ");
316 if (test_bit(CFG_CAMERA_BIT, &priv->cfg))
317 seq_printf(s, "Camera ");
318 seq_printf(s, "\nGraphic: ");
319 switch ((priv->cfg)&0x700) {
321 seq_printf(s, "Intel");
324 seq_printf(s, "ATI");
327 seq_printf(s, "Nvidia");
330 seq_printf(s, "Intel and ATI");
333 seq_printf(s, "Intel and Nvidia");
341 static int debugfs_cfg_open(struct inode *inode, struct file *file)
343 return single_open(file, debugfs_cfg_show, inode->i_private);
346 static const struct file_operations debugfs_cfg_fops = {
347 .owner = THIS_MODULE,
348 .open = debugfs_cfg_open,
351 .release = single_release,
354 static int ideapad_debugfs_init(struct ideapad_private *priv)
358 priv->debug = debugfs_create_dir("ideapad", NULL);
359 if (priv->debug == NULL) {
360 pr_err("failed to create debugfs directory");
364 node = debugfs_create_file("cfg", S_IRUGO, priv->debug, priv,
367 pr_err("failed to create cfg in debugfs");
371 node = debugfs_create_file("status", S_IRUGO, priv->debug, priv,
372 &debugfs_status_fops);
374 pr_err("failed to create status in debugfs");
384 static void ideapad_debugfs_exit(struct ideapad_private *priv)
386 debugfs_remove_recursive(priv->debug);
393 static ssize_t show_ideapad_cam(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_CAMERA, &result))
401 return sprintf(buf, "-1\n");
402 return sprintf(buf, "%lu\n", result);
405 static ssize_t store_ideapad_cam(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 ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
422 static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
424 static ssize_t show_ideapad_fan(struct device *dev,
425 struct device_attribute *attr,
428 unsigned long result;
429 struct ideapad_private *priv = dev_get_drvdata(dev);
431 if (read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result))
432 return sprintf(buf, "-1\n");
433 return sprintf(buf, "%lu\n", result);
436 static ssize_t store_ideapad_fan(struct device *dev,
437 struct device_attribute *attr,
438 const char *buf, size_t count)
441 struct ideapad_private *priv = dev_get_drvdata(dev);
445 if (sscanf(buf, "%i", &state) != 1)
447 if (state < 0 || state > 4 || state == 3)
449 ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state);
455 static DEVICE_ATTR(fan_mode, 0644, show_ideapad_fan, store_ideapad_fan);
457 static ssize_t touchpad_show(struct device *dev,
458 struct device_attribute *attr,
461 struct ideapad_private *priv = dev_get_drvdata(dev);
462 unsigned long result;
464 if (read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &result))
465 return sprintf(buf, "-1\n");
466 return sprintf(buf, "%lu\n", result);
469 /* Switch to RO for now: It might be revisited in the future */
470 static ssize_t __maybe_unused touchpad_store(struct device *dev,
471 struct device_attribute *attr,
472 const char *buf, size_t count)
474 struct ideapad_private *priv = dev_get_drvdata(dev);
478 ret = kstrtobool(buf, &state);
482 ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state);
488 static DEVICE_ATTR_RO(touchpad);
490 static ssize_t conservation_mode_show(struct device *dev,
491 struct device_attribute *attr,
494 struct ideapad_private *priv = dev_get_drvdata(dev);
495 unsigned long result;
497 if (method_gbmd(priv->adev->handle, &result))
498 return sprintf(buf, "-1\n");
499 return sprintf(buf, "%u\n", test_bit(BM_CONSERVATION_BIT, &result));
502 static ssize_t conservation_mode_store(struct device *dev,
503 struct device_attribute *attr,
504 const char *buf, size_t count)
506 struct ideapad_private *priv = dev_get_drvdata(dev);
510 ret = kstrtobool(buf, &state);
514 ret = method_sbmc(priv->adev->handle, state ?
515 BMCMD_CONSERVATION_ON :
516 BMCMD_CONSERVATION_OFF);
522 static DEVICE_ATTR_RW(conservation_mode);
524 static struct attribute *ideapad_attributes[] = {
525 &dev_attr_camera_power.attr,
526 &dev_attr_fan_mode.attr,
527 &dev_attr_touchpad.attr,
528 &dev_attr_conservation_mode.attr,
532 static umode_t ideapad_is_visible(struct kobject *kobj,
533 struct attribute *attr,
536 struct device *dev = container_of(kobj, struct device, kobj);
537 struct ideapad_private *priv = dev_get_drvdata(dev);
540 if (attr == &dev_attr_camera_power.attr)
541 supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
542 else if (attr == &dev_attr_fan_mode.attr) {
544 supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN,
546 } else if (attr == &dev_attr_conservation_mode.attr) {
547 supported = acpi_has_method(priv->adev->handle, "GBMD") &&
548 acpi_has_method(priv->adev->handle, "SBMC");
552 return supported ? attr->mode : 0;
555 static const struct attribute_group ideapad_attribute_group = {
556 .is_visible = ideapad_is_visible,
557 .attrs = ideapad_attributes
563 struct ideapad_rfk_data {
570 static const struct ideapad_rfk_data ideapad_rfk_data[] = {
571 { "ideapad_wlan", CFG_WIFI_BIT, VPCCMD_W_WIFI, RFKILL_TYPE_WLAN },
572 { "ideapad_bluetooth", CFG_BT_BIT, VPCCMD_W_BT, RFKILL_TYPE_BLUETOOTH },
573 { "ideapad_3g", CFG_3G_BIT, VPCCMD_W_3G, RFKILL_TYPE_WWAN },
576 static int ideapad_rfk_set(void *data, bool blocked)
578 struct ideapad_rfk_priv *priv = data;
579 int opcode = ideapad_rfk_data[priv->dev].opcode;
581 return write_ec_cmd(priv->priv->adev->handle, opcode, !blocked);
584 static const struct rfkill_ops ideapad_rfk_ops = {
585 .set_block = ideapad_rfk_set,
588 static void ideapad_sync_rfk_state(struct ideapad_private *priv)
590 unsigned long hw_blocked = 0;
593 if (priv->has_hw_rfkill_switch) {
594 if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked))
596 hw_blocked = !hw_blocked;
599 for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
601 rfkill_set_hw_state(priv->rfk[i], hw_blocked);
604 static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
607 unsigned long sw_blocked;
610 (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) {
611 /* Force to enable bluetooth when no_bt_rfkill=1 */
612 write_ec_cmd(priv->adev->handle,
613 ideapad_rfk_data[dev].opcode, 1);
616 priv->rfk_priv[dev].dev = dev;
617 priv->rfk_priv[dev].priv = priv;
619 priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
620 &priv->platform_device->dev,
621 ideapad_rfk_data[dev].type,
623 &priv->rfk_priv[dev]);
627 if (read_ec_data(priv->adev->handle, ideapad_rfk_data[dev].opcode-1,
629 rfkill_init_sw_state(priv->rfk[dev], 0);
631 sw_blocked = !sw_blocked;
632 rfkill_init_sw_state(priv->rfk[dev], sw_blocked);
635 ret = rfkill_register(priv->rfk[dev]);
637 rfkill_destroy(priv->rfk[dev]);
643 static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev)
648 rfkill_unregister(priv->rfk[dev]);
649 rfkill_destroy(priv->rfk[dev]);
655 static int ideapad_sysfs_init(struct ideapad_private *priv)
657 return sysfs_create_group(&priv->platform_device->dev.kobj,
658 &ideapad_attribute_group);
661 static void ideapad_sysfs_exit(struct ideapad_private *priv)
663 sysfs_remove_group(&priv->platform_device->dev.kobj,
664 &ideapad_attribute_group);
670 static const struct key_entry ideapad_keymap[] = {
671 { KE_KEY, 6, { KEY_SWITCHVIDEOMODE } },
672 { KE_KEY, 7, { KEY_CAMERA } },
673 { KE_KEY, 8, { KEY_MICMUTE } },
674 { KE_KEY, 11, { KEY_F16 } },
675 { KE_KEY, 13, { KEY_WLAN } },
676 { KE_KEY, 16, { KEY_PROG1 } },
677 { KE_KEY, 17, { KEY_PROG2 } },
678 { KE_KEY, 64, { KEY_PROG3 } },
679 { KE_KEY, 65, { KEY_PROG4 } },
680 { KE_KEY, 66, { KEY_TOUCHPAD_OFF } },
681 { KE_KEY, 67, { KEY_TOUCHPAD_ON } },
682 { KE_KEY, 128, { KEY_ESC } },
687 static int ideapad_input_init(struct ideapad_private *priv)
689 struct input_dev *inputdev;
692 inputdev = input_allocate_device();
696 inputdev->name = "Ideapad extra buttons";
697 inputdev->phys = "ideapad/input0";
698 inputdev->id.bustype = BUS_HOST;
699 inputdev->dev.parent = &priv->platform_device->dev;
701 error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL);
703 pr_err("Unable to setup input device keymap\n");
707 error = input_register_device(inputdev);
709 pr_err("Unable to register input device\n");
713 priv->inputdev = inputdev;
717 input_free_device(inputdev);
721 static void ideapad_input_exit(struct ideapad_private *priv)
723 input_unregister_device(priv->inputdev);
724 priv->inputdev = NULL;
727 static void ideapad_input_report(struct ideapad_private *priv,
728 unsigned long scancode)
730 sparse_keymap_report_event(priv->inputdev, scancode, 1, true);
733 static void ideapad_input_novokey(struct ideapad_private *priv)
735 unsigned long long_pressed;
737 if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed))
740 ideapad_input_report(priv, 17);
742 ideapad_input_report(priv, 16);
745 static void ideapad_check_special_buttons(struct ideapad_private *priv)
747 unsigned long bit, value;
749 read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
751 for (bit = 0; bit < 16; bit++) {
752 if (test_bit(bit, &value)) {
756 /* Thermal Management button */
757 ideapad_input_report(priv, 65);
760 /* OneKey Theater button */
761 ideapad_input_report(priv, 64);
764 pr_info("Unknown special button: %lu\n", bit);
774 static int ideapad_backlight_get_brightness(struct backlight_device *blightdev)
776 struct ideapad_private *priv = bl_get_data(blightdev);
782 if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
787 static int ideapad_backlight_update_status(struct backlight_device *blightdev)
789 struct ideapad_private *priv = bl_get_data(blightdev);
794 if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
795 blightdev->props.brightness))
797 if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
798 blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1))
804 static const struct backlight_ops ideapad_backlight_ops = {
805 .get_brightness = ideapad_backlight_get_brightness,
806 .update_status = ideapad_backlight_update_status,
809 static int ideapad_backlight_init(struct ideapad_private *priv)
811 struct backlight_device *blightdev;
812 struct backlight_properties props;
813 unsigned long max, now, power;
815 if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max))
817 if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
819 if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
822 memset(&props, 0, sizeof(struct backlight_properties));
823 props.max_brightness = max;
824 props.type = BACKLIGHT_PLATFORM;
825 blightdev = backlight_device_register("ideapad",
826 &priv->platform_device->dev,
828 &ideapad_backlight_ops,
830 if (IS_ERR(blightdev)) {
831 pr_err("Could not register backlight device\n");
832 return PTR_ERR(blightdev);
835 priv->blightdev = blightdev;
836 blightdev->props.brightness = now;
837 blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
838 backlight_update_status(blightdev);
843 static void ideapad_backlight_exit(struct ideapad_private *priv)
845 backlight_device_unregister(priv->blightdev);
846 priv->blightdev = NULL;
849 static void ideapad_backlight_notify_power(struct ideapad_private *priv)
852 struct backlight_device *blightdev = priv->blightdev;
856 if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
858 blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
861 static void ideapad_backlight_notify_brightness(struct ideapad_private *priv)
865 /* if we control brightness via acpi video driver */
866 if (priv->blightdev == NULL) {
867 read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
871 backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY);
877 static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
881 /* Without reading from EC touchpad LED doesn't switch state */
882 if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
883 /* Some IdeaPads don't really turn off touchpad - they only
884 * switch the LED state. We (de)activate KBC AUX port to turn
885 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
886 * KEY_TOUCHPAD_ON to not to get out of sync with LED */
888 i8042_command(¶m, value ? I8042_CMD_AUX_ENABLE :
889 I8042_CMD_AUX_DISABLE);
890 ideapad_input_report(priv, value ? 67 : 66);
894 static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
896 struct ideapad_private *priv = data;
897 unsigned long vpc1, vpc2, vpc_bit;
899 if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
901 if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
904 vpc1 = (vpc2 << 8) | vpc1;
905 for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
906 if (test_bit(vpc_bit, &vpc1)) {
909 ideapad_sync_rfk_state(priv);
916 ideapad_input_report(priv, vpc_bit);
919 ideapad_sync_touchpad_state(priv);
922 ideapad_backlight_notify_brightness(priv);
925 ideapad_input_novokey(priv);
928 ideapad_backlight_notify_power(priv);
931 ideapad_check_special_buttons(priv);
934 /* Some IdeaPads report event 1 every ~20
935 * seconds while on battery power; some
936 * report this when changing to/from tablet
937 * mode. Squelch this event.
941 pr_info("Unknown event: %lu\n", vpc_bit);
947 #if IS_ENABLED(CONFIG_ACPI_WMI)
948 static void ideapad_wmi_notify(u32 value, void *context)
952 ideapad_input_report(context, value);
955 pr_info("Unknown WMI event %u\n", value);
961 * Some ideapads don't have a hardware rfkill switch, reading VPCCMD_R_RF
962 * always results in 0 on these models, causing ideapad_laptop to wrongly
963 * report all radios as hardware-blocked.
965 static const struct dmi_system_id no_hw_rfkill_list[] = {
967 .ident = "Lenovo G40-30",
969 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
970 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G40-30"),
974 .ident = "Lenovo G50-30",
976 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
977 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G50-30"),
981 .ident = "Lenovo V310-14IKB",
983 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
984 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14IKB"),
988 .ident = "Lenovo V310-14ISK",
990 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
991 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14ISK"),
995 .ident = "Lenovo V310-15IKB",
997 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
998 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15IKB"),
1002 .ident = "Lenovo V310-15ISK",
1004 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1005 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15ISK"),
1009 .ident = "Lenovo V510-15IKB",
1011 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1012 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V510-15IKB"),
1016 .ident = "Lenovo ideapad 300-15IBR",
1018 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1019 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IBR"),
1023 .ident = "Lenovo ideapad 300-15IKB",
1025 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1026 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IKB"),
1030 .ident = "Lenovo ideapad 300S-11IBR",
1032 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1033 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300S-11BR"),
1037 .ident = "Lenovo ideapad 310-15ABR",
1039 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1040 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ABR"),
1044 .ident = "Lenovo ideapad 310-15IAP",
1046 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1047 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IAP"),
1051 .ident = "Lenovo ideapad 310-15IKB",
1053 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1054 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IKB"),
1058 .ident = "Lenovo ideapad 310-15ISK",
1060 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1061 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ISK"),
1065 .ident = "Lenovo ideapad Y700-14ISK",
1067 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1068 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-14ISK"),
1072 .ident = "Lenovo ideapad Y700-15ACZ",
1074 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1075 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ACZ"),
1079 .ident = "Lenovo ideapad Y700-15ISK",
1081 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1082 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ISK"),
1086 .ident = "Lenovo ideapad Y700 Touch-15ISK",
1088 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1089 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700 Touch-15ISK"),
1093 .ident = "Lenovo ideapad Y700-17ISK",
1095 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1096 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-17ISK"),
1100 .ident = "Lenovo Legion Y520-15IKB",
1102 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1103 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y520-15IKB"),
1107 .ident = "Lenovo Legion Y720-15IKBN",
1109 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1110 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y720-15IKBN"),
1114 .ident = "Lenovo Yoga 2 11 / 13 / Pro",
1116 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1117 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2"),
1121 .ident = "Lenovo Yoga 2 11 / 13 / Pro",
1123 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1124 DMI_MATCH(DMI_BOARD_NAME, "Yoga2"),
1128 .ident = "Lenovo Yoga 3 1170 / 1470",
1130 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1131 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 3"),
1135 .ident = "Lenovo Yoga 3 Pro 1370",
1137 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1138 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 3"),
1142 .ident = "Lenovo Yoga 700",
1144 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1145 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 700"),
1149 .ident = "Lenovo Yoga 900",
1151 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1152 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 900"),
1156 .ident = "Lenovo Yoga 900",
1158 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1159 DMI_MATCH(DMI_BOARD_NAME, "VIUU4"),
1163 .ident = "Lenovo YOGA 910-13IKB",
1165 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1166 DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 910-13IKB"),
1172 static int ideapad_acpi_add(struct platform_device *pdev)
1176 struct ideapad_private *priv;
1177 struct acpi_device *adev;
1179 ret = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
1183 if (read_method_int(adev->handle, "_CFG", &cfg))
1186 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
1190 dev_set_drvdata(&pdev->dev, priv);
1193 priv->platform_device = pdev;
1194 priv->has_hw_rfkill_switch = !dmi_check_system(no_hw_rfkill_list);
1196 ret = ideapad_sysfs_init(priv);
1200 ret = ideapad_debugfs_init(priv);
1202 goto debugfs_failed;
1204 ret = ideapad_input_init(priv);
1209 * On some models without a hw-switch (the yoga 2 13 at least)
1210 * VPCCMD_W_RF must be explicitly set to 1 for the wifi to work.
1212 if (!priv->has_hw_rfkill_switch)
1213 write_ec_cmd(priv->adev->handle, VPCCMD_W_RF, 1);
1215 for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
1216 if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
1217 ideapad_register_rfkill(priv, i);
1219 ideapad_sync_rfk_state(priv);
1220 ideapad_sync_touchpad_state(priv);
1222 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1223 ret = ideapad_backlight_init(priv);
1224 if (ret && ret != -ENODEV)
1225 goto backlight_failed;
1227 ret = acpi_install_notify_handler(adev->handle,
1228 ACPI_DEVICE_NOTIFY, ideapad_acpi_notify, priv);
1230 goto notification_failed;
1232 #if IS_ENABLED(CONFIG_ACPI_WMI)
1233 for (i = 0; i < ARRAY_SIZE(ideapad_wmi_fnesc_events); i++) {
1234 ret = wmi_install_notify_handler(ideapad_wmi_fnesc_events[i],
1235 ideapad_wmi_notify, priv);
1237 priv->fnesc_guid = ideapad_wmi_fnesc_events[i];
1241 if (ret != AE_OK && ret != AE_NOT_EXIST)
1242 goto notification_failed_wmi;
1246 #if IS_ENABLED(CONFIG_ACPI_WMI)
1247 notification_failed_wmi:
1248 acpi_remove_notify_handler(priv->adev->handle,
1249 ACPI_DEVICE_NOTIFY, ideapad_acpi_notify);
1251 notification_failed:
1252 ideapad_backlight_exit(priv);
1254 for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
1255 ideapad_unregister_rfkill(priv, i);
1256 ideapad_input_exit(priv);
1258 ideapad_debugfs_exit(priv);
1260 ideapad_sysfs_exit(priv);
1264 static int ideapad_acpi_remove(struct platform_device *pdev)
1266 struct ideapad_private *priv = dev_get_drvdata(&pdev->dev);
1269 #if IS_ENABLED(CONFIG_ACPI_WMI)
1270 if (priv->fnesc_guid)
1271 wmi_remove_notify_handler(priv->fnesc_guid);
1273 acpi_remove_notify_handler(priv->adev->handle,
1274 ACPI_DEVICE_NOTIFY, ideapad_acpi_notify);
1275 ideapad_backlight_exit(priv);
1276 for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
1277 ideapad_unregister_rfkill(priv, i);
1278 ideapad_input_exit(priv);
1279 ideapad_debugfs_exit(priv);
1280 ideapad_sysfs_exit(priv);
1281 dev_set_drvdata(&pdev->dev, NULL);
1286 #ifdef CONFIG_PM_SLEEP
1287 static int ideapad_acpi_resume(struct device *device)
1289 struct ideapad_private *priv;
1293 priv = dev_get_drvdata(device);
1295 ideapad_sync_rfk_state(priv);
1296 ideapad_sync_touchpad_state(priv);
1300 static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
1302 static const struct acpi_device_id ideapad_device_ids[] = {
1306 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
1308 static struct platform_driver ideapad_acpi_driver = {
1309 .probe = ideapad_acpi_add,
1310 .remove = ideapad_acpi_remove,
1312 .name = "ideapad_acpi",
1314 .acpi_match_table = ACPI_PTR(ideapad_device_ids),
1318 module_platform_driver(ideapad_acpi_driver);
1320 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
1321 MODULE_DESCRIPTION("IdeaPad ACPI Extras");
1322 MODULE_LICENSE("GPL");