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Fix STM32 USB overrun problem (again, still)

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4199 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2011-12-18 13:53:58 +00:00
parent 643328e015
commit b40ed6317f
2 changed files with 195 additions and 54 deletions
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TODO
+190 -51
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arch/arm/src/stm32/stm32_usbdev.c
+5 -3
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@@ -1085,8 +1085,7 @@ static struct stm32_req_s *stm32_rqdequeue(struct stm32_ep_s *privep)
* Name: stm32_rqenqueue * Name: stm32_rqenqueue
****************************************************************************/ ****************************************************************************/
static void stm32_rqenqueue(struct stm32_ep_s *privep, static void stm32_rqenqueue(struct stm32_ep_s *privep, struct stm32_req_s *req)
struct stm32_req_s *req)
{ {
req->flink = NULL; req->flink = NULL;
if (!privep->head) if (!privep->head)
@@ -1446,7 +1445,10 @@ static void stm32_epdone(struct stm32_usbdev_s *priv, uint8_t epno)
priv->rxstatus = USB_EPR_STATRX_VALID; priv->rxstatus = USB_EPR_STATRX_VALID;
} }
else
/* NAK further OUT packets if there there no more read requests */
if (stm32_rqempty(privep))
{ {
usbtrace(TRACE_INTDECODE(STM32_TRACEINTID_EPOUTPENDING), (uint16_t)epno); usbtrace(TRACE_INTDECODE(STM32_TRACEINTID_EPOUTPENDING), (uint16_t)epno);