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path: root/drivers/platform/x86/dell/dell-wmi-privacy.c
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Diffstat (limited to 'drivers/platform/x86/dell/dell-wmi-privacy.c')
-rw-r--r--drivers/platform/x86/dell/dell-wmi-privacy.c41
1 files changed, 31 insertions, 10 deletions
diff --git a/drivers/platform/x86/dell/dell-wmi-privacy.c b/drivers/platform/x86/dell/dell-wmi-privacy.c
index c82b3d6867c5..c517bd45dd32 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);
}
@@ -292,7 +296,7 @@ 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;
+ int ret, i, j;
ret = wmi_has_guid(DELL_PRIVACY_GUID);
if (!ret)
@@ -304,6 +308,11 @@ 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)
@@ -318,9 +327,20 @@ 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);
@@ -331,11 +351,12 @@ 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;
+ /* 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 = get_current_status(priv->wdev);
+ ret = input_register_device(priv->input_dev);
if (ret)
return ret;