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Update sam_udphs.c

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This commit is contained in:
Tim Hardisty
2024-10-11 15:13:49 +01:00
committed by Xiang Xiao
parent b27272936b
commit 3027be72c3
1 changed files with 11 additions and 6 deletions
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arch/arm/src/sama5/sam_udphs.c
+11 -6
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@@ -2374,11 +2374,6 @@ static void sam_dma_interrupt(struct sam_usbdev_s *priv, int epno)
privep = &priv->eplist[epno];
/* Get the request from the head of the endpoint request queue */
privreq = sam_rqpeek(&privep->reqq);
DEBUGASSERT(privreq);
/* Get the result of the DMA operation */
dmastatus = sam_getreg(SAM_UDPHS_DMASTATUS(epno));
@@ -2439,7 +2434,12 @@ static void sam_dma_interrupt(struct sam_usbdev_s *priv, int epno)
}
else if (privep->epstate == UDPHS_EPSTATE_RECEIVING)
{
/* privreg->inflight holds the total transfer size */
/* privreg->inflight holds the total transfer size
* Get the request from the head of the endpoint request queue
*/
privreq = sam_rqpeek(&privep->reqq);
DEBUGASSERT(privreq);
xfrsize = privreq->inflight;
privreq->inflight = 0;
@@ -2495,8 +2495,13 @@ static void sam_dma_interrupt(struct sam_usbdev_s *priv, int epno)
* BUFF_COUNT should not be zero. BUFF_COUNT was set to the
* 'inflight' count when the DMA started so the difference will
* give us the actual size of the transfer.
*
* Get the request from the head of the endpoint request queue first.
*/
privreq = sam_rqpeek(&privep->reqq);
DEBUGASSERT(privreq);
bufcnt = ((dmastatus & UDPHS_DMASTATUS_BUFCNT_MASK)
>> UDPHS_DMASTATUS_BUFCNT_SHIFT);
xfrsize = privreq->inflight - bufcnt;