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Trivial updates assocaited with USB host mass storage and SAMA5 EHCI

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This commit is contained in:
Gregory Nutt 2013-09-08 13:42:56 -06:00
parent e5841a74a9
commit 10a9fcff30
1 changed files with 28 additions and 4 deletions
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30
arch/arm/src/sama5/sam_ehci.c
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@ -2415,10 +2415,34 @@ static int sam_qh_ioccheck(struct sam_qh_s *qh, uint32_t **bp, void *arg)
{
/* An error occurred */
udbg("ERROR: EP%d TOKEN=%08x", epinfo->epno, token);
epinfo->status = (token & QH_TOKEN_STATUS_MASK) >> QH_TOKEN_STATUS_SHIFT;
/* The HALT condition is set on a variety of conditions: babble, error
* counter countdown to zero, or a STALL. If we can rule out babble
* (babble bit not set) and if the error counter is non-zero, then we can
* assume a STALL. In this case, we return -PERM to inform the class
* driver of the stall condition.
*/
if ((token & (QH_TOKEN_BABBLE | QH_TOKEN_HALTED)) == QH_TOKEN_HALTED &&
(token & QH_TOKEN_CERR_MASK) != 0)
{
/* It is a stall, Note the that the data toggle is reset
* after the stall.
*/
udbg("EP%d Stalled: TOKEN=%08x\n", epinfo->epno, token);
epinfo->result = -EPERM;
epinfo->toggle = 0;
}
else
{
/* Otherwise, it is some kind of data transfer error */
udbg("ERROR: EP%d TOKEN=%08x\n", epinfo->epno, token);
epinfo->result = -EIO;
}
}
/* Is there a thread waiting for this transfer to complete? */
@ -3921,7 +3945,7 @@ FAR struct usbhost_connection_s *sam_ehci_initialize(int controller)
{
irqstate_t flags;
uint32_t regval;
#ifdef CONFIG_DEBUG_USB
#if defined(CONFIG_DEBUG_USB) && defined(CONFIG_DEBUG_VERBOSE)
uint16_t regval16;
unsigned int nports;
#endif
@ -4152,7 +4176,7 @@ FAR struct usbhost_connection_s *sam_ehci_initialize(int controller)
sam_putreg(ECHI_INT_ALLINTS, &HCOR->usbsts);
#ifdef CONFIG_DEBUG
#if defined(CONFIG_DEBUG_USB) && defined(CONFIG_DEBUG_VERBOSE)
/* Show the ECHI version */
regval16 = sam_swap16(HCCR->hciversion);