static void pxa910_squ_dma_irq(int dma_ch, void *dev_id)
{
struct snd_pcm_substream *substream = dev_id;
struct pxa910_runtime_data *prtd = substream->runtime->private_data;
if (SDISR(dma_ch) & 0x1) {
snd_pcm_period_elapsed(substream);
} else {
printk(KERN_ERR "%s: SQU error on channel %d \n",
prtd->params->name, dma_ch);
}
SDISR(dma_ch) = 0;
}
static irqreturn_t squ_irq_handler(int irq, void *dev_id)
{
int i, dint;
for (i = 0; i < num_squ_channels; i++) {
dint = SDISR(i);
if (dint) {
struct squ_channel *channel = &squ_channels[i];
if (channel->name && channel->irq_handler) {
channel->irq_handler(i, channel->data);
SDISR(i)=0;
} else {
/*
* IRQ for an unregistered SQU channel:
* let's clear the interrupts and disable it.
*/
pr_debug("spurious IRQ for SQU channel %d\n", i);
SDCR(i) = 0;
}
}
}
return IRQ_HANDLED;
}
