static int msm_pcm_prepare(struct snd_pcm_substream *substream)
{
int ret = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_voice *prtd = runtime->private_data;
uint16_t session_id = 0;
mutex_lock(&prtd->lock);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = msm_pcm_playback_prepare(substream);
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = msm_pcm_capture_prepare(substream);
if (prtd->playback_start && prtd->capture_start) {
if (is_volte(prtd))
session_id = voc_get_session_id(VOLTE_SESSION_NAME);
else if (is_sglte(prtd))
session_id = voc_get_session_id(SGLTE_SESSION_NAME);
else
session_id = voc_get_session_id(VOICE_SESSION_NAME);
voc_start_voice_call(session_id);
}
mutex_unlock(&prtd->lock);
return ret;
}
static int msm_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_voice *prtd = runtime->private_data;
uint16_t session_id = 0;
int ret = 0;
mutex_lock(&prtd->lock);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = msm_pcm_playback_close(substream);
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = msm_pcm_capture_close(substream);
prtd->instance--;
if (!prtd->playback_start && !prtd->capture_start) {
pr_debug("end voice call\n");
if (is_volte(prtd))
session_id = voc_get_session_id(VOLTE_SESSION_NAME);
else if (is_voice2(prtd))
session_id = voc_get_session_id(VOICE2_SESSION_NAME);
else
session_id = voc_get_session_id(VOICE_SESSION_NAME);
voc_end_voice_call(session_id);
}
mutex_unlock(&prtd->lock);
return ret;
}
static uint32_t get_session_id(struct msm_voice *pvoc)
{
uint32_t session_id = 0;
if (is_volte(pvoc))
session_id = voc_get_session_id(VOLTE_SESSION_NAME);
else if (is_voice2(pvoc))
session_id = voc_get_session_id(VOICE2_SESSION_NAME);
else
session_id = voc_get_session_id(VOICE_SESSION_NAME);
return session_id;
}
static int msm_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
int ret = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_voice *prtd = runtime->private_data;
uint16_t session_id = 0;
pr_debug("%s: cmd = %d\n", __func__, cmd);
if (is_volte(prtd))
session_id = voc_get_session_id(VOLTE_SESSION_NAME);
else if (is_voice2(prtd))
session_id = voc_get_session_id(VOICE2_SESSION_NAME);
else
session_id = voc_get_session_id(VOICE_SESSION_NAME);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_STOP:
pr_debug("Start & Stop Voice call not handled in Trigger.\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
pr_debug("%s: resume call session_id = %d\n", __func__,
session_id);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = msm_pcm_playback_prepare(substream);
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = msm_pcm_capture_prepare(substream);
if (prtd->playback_start && prtd->capture_start)
voc_resume_voice_call(session_id);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
pr_debug("%s: pause call session_id=%d\n",
__func__, session_id);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (prtd->playback_start)
prtd->playback_start = 0;
} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (prtd->capture_start)
prtd->capture_start = 0;
}
voc_standby_voice_call(session_id);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}