diff options
Diffstat (limited to 'drivers/platform/x86/dell/dell-wmi-privacy.c')
| -rw-r--r-- | drivers/platform/x86/dell/dell-wmi-privacy.c | 58 |
1 files changed, 34 insertions, 24 deletions
diff --git a/drivers/platform/x86/dell/dell-wmi-privacy.c b/drivers/platform/x86/dell/dell-wmi-privacy.c index 074b7e68c227..4b65e1655d42 100644 --- a/drivers/platform/x86/dell/dell-wmi-privacy.c +++ b/drivers/platform/x86/dell/dell-wmi-privacy.c @@ -61,7 +61,7 @@ static const struct key_entry dell_wmi_keymap_type_0012[] = { /* privacy mic mute */ { KE_KEY, 0x0001, { KEY_MICMUTE } }, /* privacy camera mute */ - { KE_SW, 0x0002, { SW_CAMERA_LENS_COVER } }, + { KE_VSW, 0x0002, { SW_CAMERA_LENS_COVER } }, { KE_END, 0}, }; @@ -115,11 +115,15 @@ bool dell_privacy_process_event(int type, int code, int status) switch (code) { case DELL_PRIVACY_AUDIO_EVENT: /* Mic mute */ - case DELL_PRIVACY_CAMERA_EVENT: /* Camera mute */ priv->last_status = status; sparse_keymap_report_entry(priv->input_dev, key, 1, true); ret = true; break; + case DELL_PRIVACY_CAMERA_EVENT: /* Camera mute */ + priv->last_status = status; + sparse_keymap_report_entry(priv->input_dev, key, !(status & CAMERA_STATUS), false); + ret = true; + break; default: dev_dbg(&priv->wdev->dev, "unknown event type 0x%04x 0x%04x\n", type, code); } @@ -174,15 +178,12 @@ static ssize_t dell_privacy_current_state_show(struct device *dev, static DEVICE_ATTR_RO(dell_privacy_supported_type); static DEVICE_ATTR_RO(dell_privacy_current_state); -static struct attribute *privacy_attributes[] = { +static struct attribute *privacy_attrs[] = { &dev_attr_dell_privacy_supported_type.attr, &dev_attr_dell_privacy_current_state.attr, NULL, }; - -static const struct attribute_group privacy_attribute_group = { - .attrs = privacy_attributes -}; +ATTRIBUTE_GROUPS(privacy); /* * Describes the Device State class exposed by BIOS which can be consumed by @@ -287,7 +288,6 @@ static int dell_privacy_leds_setup(struct device *dev) priv->cdev.max_brightness = 1; priv->cdev.brightness_set_blocking = dell_privacy_micmute_led_set; priv->cdev.default_trigger = "audio-micmute"; - priv->cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE); return devm_led_classdev_register(dev, &priv->cdev); } @@ -295,11 +295,7 @@ static int dell_privacy_wmi_probe(struct wmi_device *wdev, const void *context) { struct privacy_wmi_data *priv; struct key_entry *keymap; - int ret, i; - - ret = wmi_has_guid(DELL_PRIVACY_GUID); - if (!ret) - pr_debug("Unable to detect available Dell privacy devices!\n"); + int ret, i, j; priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -307,6 +303,11 @@ static int dell_privacy_wmi_probe(struct wmi_device *wdev, const void *context) dev_set_drvdata(&wdev->dev, priv); priv->wdev = wdev; + + ret = get_current_status(priv->wdev); + if (ret) + return ret; + /* create evdev passing interface */ priv->input_dev = devm_input_allocate_device(&wdev->dev); if (!priv->input_dev) @@ -321,9 +322,20 @@ static int dell_privacy_wmi_probe(struct wmi_device *wdev, const void *context) /* remap the keymap code with Dell privacy key type 0x12 as prefix * KEY_MICMUTE scancode will be reported as 0x120001 */ - for (i = 0; i < ARRAY_SIZE(dell_wmi_keymap_type_0012); i++) { - keymap[i] = dell_wmi_keymap_type_0012[i]; - keymap[i].code |= (0x0012 << 16); + for (i = 0, j = 0; i < ARRAY_SIZE(dell_wmi_keymap_type_0012); i++) { + /* + * Unlike keys where only presses matter, userspace may act + * on switches in both of their positions. Only register + * SW_CAMERA_LENS_COVER if it is actually there. + */ + if (dell_wmi_keymap_type_0012[i].type == KE_VSW && + dell_wmi_keymap_type_0012[i].sw.code == SW_CAMERA_LENS_COVER && + !(priv->features_present & BIT(DELL_PRIVACY_TYPE_CAMERA))) + continue; + + keymap[j] = dell_wmi_keymap_type_0012[i]; + keymap[j].code |= (0x0012 << 16); + j++; } ret = sparse_keymap_setup(priv->input_dev, keymap, NULL); kfree(keymap); @@ -334,15 +346,12 @@ static int dell_privacy_wmi_probe(struct wmi_device *wdev, const void *context) priv->input_dev->name = "Dell Privacy Driver"; priv->input_dev->id.bustype = BUS_HOST; - ret = input_register_device(priv->input_dev); - if (ret) - return ret; - - ret = get_current_status(priv->wdev); - if (ret) - return ret; + /* Report initial camera-cover status */ + if (priv->features_present & BIT(DELL_PRIVACY_TYPE_CAMERA)) + input_report_switch(priv->input_dev, SW_CAMERA_LENS_COVER, + !(priv->last_status & CAMERA_STATUS)); - ret = devm_device_add_group(&wdev->dev, &privacy_attribute_group); + ret = input_register_device(priv->input_dev); if (ret) return ret; @@ -374,6 +383,7 @@ static const struct wmi_device_id dell_wmi_privacy_wmi_id_table[] = { static struct wmi_driver dell_privacy_wmi_driver = { .driver = { .name = "dell-privacy", + .dev_groups = privacy_groups, }, .probe = dell_privacy_wmi_probe, .remove = dell_privacy_wmi_remove, |