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Experimental STM32 OTG fix. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6901 35acf78f-673a-0410-8e92-d51de3d6d3f4
master
gdisirio 2014-05-01 10:47:25 +00:00
parent 18f5f09904
commit 86d3b56bfb
2 changed files with 29 additions and 4 deletions
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29
os/hal/platforms/STM32/OTGv1/usb_lld.c
View File

@ -33,7 +33,9 @@
/* Driver local definitions. */
/*===========================================================================*/
#define TRDT_VALUE 5
#define TRDT_VALUE 5
#define EP0_MAX_INSIZE 64
/*===========================================================================*/
/* Driver exported variables. */
@ -556,7 +558,23 @@ static void otg_epin_handler(USBDriver *usbp, usbep_t ep) {
}
if ((epint & DIEPINT_XFRC) && (otgp->DIEPMSK & DIEPMSK_XFRCM)) {
/* Transmit transfer complete.*/
_usb_isr_invoke_in_cb(usbp, ep);
USBInEndpointState *isp = usbp->epc[ep]->in_state;
if (isp->txsize < isp->totsize) {
/* In case the transaction covered only part of the total transfer
then another transaction is immediately started in order to
cover the remaining.*/
isp->txsize = isp->totsize - isp->txsize;
isp->txcnt = 0;
usb_lld_prepare_transmit(usbp, ep);
chSysLockFromIsr();
usb_lld_start_in(usbp, ep);
chSysUnlockFromIsr();
}
else {
/* End on IN transfer.*/
_usb_isr_invoke_in_cb(usbp, ep);
}
}
if ((epint & DIEPINT_TXFE) &&
(otgp->DIEPEMPMSK & DIEPEMPMSK_INEPTXFEM(ep))) {
@ -1215,18 +1233,21 @@ void usb_lld_prepare_transmit(USBDriver *usbp, usbep_t ep) {
USBInEndpointState *isp = usbp->epc[ep]->in_state;
/* Transfer initialization.*/
isp->totsize = isp->txsize;
if (isp->txsize == 0) {
/* Special case, sending zero size packet.*/
usbp->otg->ie[ep].DIEPTSIZ = DIEPTSIZ_PKTCNT(1) | DIEPTSIZ_XFRSIZ(0);
}
else {
if ((ep == 0) && (isp->txsize > EP0_MAX_INSIZE))
isp->txsize = EP0_MAX_INSIZE;
/* Normal case.*/
uint32_t pcnt = (isp->txsize + usbp->epc[ep]->in_maxsize - 1) /
usbp->epc[ep]->in_maxsize;
usbp->otg->ie[ep].DIEPTSIZ = DIEPTSIZ_PKTCNT(pcnt) |
DIEPTSIZ_XFRSIZ(usbp->epc[ep]->in_state->txsize);
DIEPTSIZ_XFRSIZ(isp->txsize);
}
}
/**

4
os/hal/platforms/STM32/OTGv1/usb_lld.h
View File

@ -226,6 +226,10 @@ typedef struct {
OutputQueue *txqueue;
} queue;
} mode;
/**
* @brief Total transmit transfer size.
*/
size_t totsize;
} USBInEndpointState;
/**