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path: root/sound/pci/hda/dell_wmi_helper.c
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Diffstat (limited to 'sound/pci/hda/dell_wmi_helper.c')
-rw-r--r--sound/pci/hda/dell_wmi_helper.c87
1 files changed, 81 insertions, 6 deletions
diff --git a/sound/pci/hda/dell_wmi_helper.c b/sound/pci/hda/dell_wmi_helper.c
index 7efa7bd7acb2..44b1e15682b9 100644
--- a/sound/pci/hda/dell_wmi_helper.c
+++ b/sound/pci/hda/dell_wmi_helper.c
@@ -5,12 +5,47 @@
#if IS_ENABLED(CONFIG_DELL_LAPTOP)
#include <linux/dell-led.h>
+enum {
+ MICMUTE_LED_ON,
+ MICMUTE_LED_OFF,
+ MICMUTE_LED_FOLLOW_CAPTURE,
+ MICMUTE_LED_FOLLOW_MUTE,
+};
+
+static int dell_led_mode = MICMUTE_LED_FOLLOW_MUTE;
+static int dell_capture;
static int dell_led_value;
static int (*dell_micmute_led_set_func)(int);
static void (*dell_old_cap_hook)(struct hda_codec *,
struct snd_kcontrol *,
struct snd_ctl_elem_value *);
+static void call_micmute_led_update(void)
+{
+ int val;
+
+ switch (dell_led_mode) {
+ case MICMUTE_LED_ON:
+ val = 1;
+ break;
+ case MICMUTE_LED_OFF:
+ val = 0;
+ break;
+ case MICMUTE_LED_FOLLOW_CAPTURE:
+ val = dell_capture;
+ break;
+ case MICMUTE_LED_FOLLOW_MUTE:
+ default:
+ val = !dell_capture;
+ break;
+ }
+
+ if (val == dell_led_value)
+ return;
+ dell_led_value = val;
+ dell_micmute_led_set_func(dell_led_value);
+}
+
static void update_dell_wmi_micmute_led(struct hda_codec *codec,
struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
@@ -22,15 +57,54 @@ static void update_dell_wmi_micmute_led(struct hda_codec *codec,
return;
if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) {
/* TODO: How do I verify if it's a mono or stereo here? */
- int val = (ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]) ? 0 : 1;
- if (val == dell_led_value)
- return;
- dell_led_value = val;
- if (dell_micmute_led_set_func)
- dell_micmute_led_set_func(dell_led_value);
+ dell_capture = (ucontrol->value.integer.value[0] ||
+ ucontrol->value.integer.value[1]);
+ call_micmute_led_update();
}
}
+static int dell_mic_mute_led_mode_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char * const texts[] = {
+ "On", "Off", "Follow Capture", "Follow Mute",
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
+}
+
+static int dell_mic_mute_led_mode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.enumerated.item[0] = dell_led_mode;
+ return 0;
+}
+
+static int dell_mic_mute_led_mode_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ unsigned int mode;
+
+ mode = ucontrol->value.enumerated.item[0];
+ if (mode > MICMUTE_LED_FOLLOW_MUTE)
+ mode = MICMUTE_LED_FOLLOW_MUTE;
+ if (mode == dell_led_mode)
+ return 0;
+ dell_led_mode = mode;
+ call_micmute_led_update();
+ return 1;
+}
+
+static const struct snd_kcontrol_new dell_mic_mute_mode_ctls[] = {
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Mic Mute-LED Mode",
+ .info = dell_mic_mute_led_mode_info,
+ .get = dell_mic_mute_led_mode_get,
+ .put = dell_mic_mute_led_mode_put,
+ },
+ {}
+};
static void alc_fixup_dell_wmi(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
@@ -55,6 +129,7 @@ static void alc_fixup_dell_wmi(struct hda_codec *codec,
dell_old_cap_hook = spec->gen.cap_sync_hook;
spec->gen.cap_sync_hook = update_dell_wmi_micmute_led;
removefunc = false;
+ add_mixer(spec, dell_mic_mute_mode_ctls);
}
}