hal: add support for device mute
Add support for muting the RX and TX devices without affecting
the voice stream. This feature is added to enable voice call
quality testing by carriers.
Change-Id: I4d0f599e44ae24ce02d29333f496ef18f889ac55
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 546b1fd..dc079b9 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -1017,6 +1017,44 @@
return ret;
}
+int platform_set_device_mute(void *platform, bool state, char *dir)
+{
+ struct platform_data *my_data = (struct platform_data *)platform;
+ struct audio_device *adev = my_data->adev;
+ struct mixer_ctl *ctl;
+ char *mixer_ctl_name = NULL;
+ int ret = 0;
+ uint32_t set_values[ ] = {0,
+ ALL_SESSION_VSID,
+ 0};
+ if(dir == NULL) {
+ ALOGE("%s: Invalid direction:%s", __func__, dir);
+ return -EINVAL;
+ }
+
+ if (!strncmp("rx", dir, sizeof("rx"))) {
+ mixer_ctl_name = "Voice Rx Device Mute";
+ } else if (!strncmp("tx", dir, sizeof("tx"))) {
+ mixer_ctl_name = "Voice Tx Device Mute";
+ } else {
+ return -EINVAL;
+ }
+
+ set_values[0] = state;
+ ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+ if (!ctl) {
+ ALOGE("%s: Could not get ctl for mixer cmd - %s",
+ __func__, mixer_ctl_name);
+ return -EINVAL;
+ }
+
+ ALOGV("%s: Setting device mute state: %d, mixer ctrl:%s",
+ __func__,state, mixer_ctl_name);
+ mixer_ctl_set_array(ctl, set_values, ARRAY_SIZE(set_values));
+
+ return ret;
+}
+
snd_device_t platform_get_output_snd_device(void *platform, audio_devices_t devices)
{
struct platform_data *my_data = (struct platform_data *)platform;