static irqreturn_t ipq_mi2s_irq(int intrsrc, void *data)
{
int dma_ch;
uint32_t ret = IRQ_NONE;
uint32_t has_xrun, pending;
struct snd_pcm_substream *substream = data;
struct snd_pcm_runtime *runtime = substream->runtime;
struct ipq_lpass_runtime_data_t *prtd =
(struct ipq_lpass_runtime_data_t *)runtime->private_data;
if (prtd)
dma_ch = prtd->lpaif_info.dma_ch;
else
return IRQ_NONE;
pending = (intrsrc
& (UNDER_CH(dma_ch) | PER_CH(dma_ch) | ERR_CH(dma_ch)));
has_xrun = (pending & UNDER_CH(dma_ch));
if (unlikely(has_xrun) && substream->runtime &&
snd_pcm_running(substream)) {
pr_debug("%s %d: xrun warning\n", __func__, __LINE__);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
pending &= ~UNDER_CH(dma_ch);
ret = IRQ_HANDLED;
}
if (pending & PER_CH(dma_ch)) {
if (++prtd->pcm_stream_info.period_index >= runtime->periods)
prtd->pcm_stream_info.period_index = 0;
snd_pcm_period_elapsed(substream);
pending &= ~PER_CH(dma_ch);
ret = IRQ_HANDLED;
}
if (pending & UNDER_CH(dma_ch)) {
snd_pcm_period_elapsed(substream);
pr_debug("%s %d: xrun warning\n", __func__, __LINE__);
ret = IRQ_HANDLED;
}
if (pending & ERR_CH(dma_ch)) {
pr_debug("%s %d: Bus access warning\n", __func__, __LINE__);
ret = IRQ_HANDLED;
}
return ret;
}
static irqreturn_t lpa_if_irq(int intrsrc, void *data)
{
struct lpa_if *lpa_if = data;
int dma_ch = 0;
unsigned int pending;
if (lpa_if)
dma_ch = lpa_if->dma_ch;
else {
pr_err("invalid lpa_if\n");
return IRQ_NONE;
}
pending = (intrsrc
& (UNDER_CH(dma_ch) | PER_CH(dma_ch) | ERR_CH(dma_ch)));
if (pending & UNDER_CH(dma_ch))
pr_err("under run\n");
if (pending & ERR_CH(dma_ch))
pr_err("DMA %x Master Error\n", dma_ch);
if (pending & PER_CH(dma_ch)) {
lpa_if->audio_buf[lpa_if->dma_buf].used = 0;
pr_debug("dma_buf %d used %d\n", lpa_if->dma_buf,
lpa_if->audio_buf[lpa_if->dma_buf].used);
lpa_if->dma_buf++;
lpa_if->dma_buf = lpa_if->dma_buf % lpa_if->cfg.buffer_count;
if (lpa_if->dma_buf == lpa_if->cpu_buf)
pr_err("Err:both dma_buf and cpu_buf are on same index\n");
wake_up(&lpa_if->wait);
}
return IRQ_HANDLED;
}
