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SAMA5 I2S: Need to update the count of valid bytes at the conclusion of the read DMA

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This commit is contained in:
Gregory Nutt 2013-11-10 15:02:51 -06:00
parent 64a7e96f1f
commit 8c16506277
1 changed files with 22 additions and 4 deletions
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26
arch/arm/src/sama5/sam_ssc.c
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@ -1053,6 +1053,10 @@ static int ssc_rxdma_setup(struct sam_ssc_s *priv)
apb = bfcontainer->apb;
DEBUGASSERT(((uintptr_t)apb->samp & 3) == 0);
/* No data received yet */
apb->nbytes = 0;
/* Physical address of the SSC RHR register and of the buffer location
* in RAM.
*/
@ -1203,13 +1207,25 @@ static void ssc_rx_worker(void *arg)
bfcontainer = (struct sam_buffer_s *)sq_remfirst(&priv->rxdone);
irqrestore(flags);
/* Perform the TX transfer done callback */
DEBUGASSERT(bfcontainer && bfcontainer->callback);
/* If the DMA was successful, then update the number of valid bytes in
* the audio buffer.
*/
if (bfcontainer->result == OK)
{
bfcontainer->apb->nbytes = bfcontainer->apb->nmaxbytes;
}
/* Perform the RX transfer done callback */
bfcontainer->callback(&priv->dev, bfcontainer->apb,
bfcontainer->arg, bfcontainer->result);
/* Release our reference on the audio buffer */
/* Release our reference on the audio buffer. This may very likely
* cause the audio buffer to be freed.
*/
apb_free(bfcontainer->apb);
@ -1585,7 +1601,9 @@ static void ssc_tx_worker(void *arg)
bfcontainer->callback(&priv->dev, bfcontainer->apb,
bfcontainer->arg, bfcontainer->result);
/* Release our reference on the audio buffer */
/* Release our reference on the audio buffer. This may very likely
* cause the audio buffer to be freed.
*/
apb_free(bfcontainer->apb);