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turn off TX FIFO Empty for EPIN if all bytes are written 

fix dcd synopsys issue with usbnet #289
This commit is contained in:
hathach 2020-04-26 22:14:59 +07:00
parent 83353dd93f
commit 8d18d6077b
1 changed files with 37 additions and 23 deletions
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60
src/portable/st/synopsys/dcd_synopsys.c
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@ -291,9 +291,10 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
if(dir == TUSB_DIR_OUT)
{
out_ep[epnum].DOEPCTL |= (1 << USB_OTG_DOEPCTL_USBAEP_Pos) | \
desc_edpt->bmAttributes.xfer << USB_OTG_DOEPCTL_EPTYP_Pos | \
desc_edpt->wMaxPacketSize.size << USB_OTG_DOEPCTL_MPSIZ_Pos;
out_ep[epnum].DOEPCTL |= (1 << USB_OTG_DOEPCTL_USBAEP_Pos) |
(desc_edpt->bmAttributes.xfer << USB_OTG_DOEPCTL_EPTYP_Pos) |
(desc_edpt->wMaxPacketSize.size << USB_OTG_DOEPCTL_MPSIZ_Pos);
dev->DAINTMSK |= (1 << (USB_OTG_DAINTMSK_OEPM_Pos + epnum));
}
else
@ -321,11 +322,12 @@ bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_edpt)
// - Offset: GRXFSIZ + 16 + Size*(epnum-1)
// - IN EP 1 gets FIFO 1, IN EP "n" gets FIFO "n".
in_ep[epnum].DIEPCTL |= (1 << USB_OTG_DIEPCTL_USBAEP_Pos) | \
epnum << USB_OTG_DIEPCTL_TXFNUM_Pos | \
desc_edpt->bmAttributes.xfer << USB_OTG_DIEPCTL_EPTYP_Pos | \
(desc_edpt->bmAttributes.xfer != TUSB_XFER_ISOCHRONOUS ? USB_OTG_DOEPCTL_SD0PID_SEVNFRM : 0) | \
desc_edpt->wMaxPacketSize.size << USB_OTG_DIEPCTL_MPSIZ_Pos;
in_ep[epnum].DIEPCTL |= (1 << USB_OTG_DIEPCTL_USBAEP_Pos) |
(epnum << USB_OTG_DIEPCTL_TXFNUM_Pos) |
(desc_edpt->bmAttributes.xfer << USB_OTG_DIEPCTL_EPTYP_Pos) |
(desc_edpt->bmAttributes.xfer != TUSB_XFER_ISOCHRONOUS ? USB_OTG_DOEPCTL_SD0PID_SEVNFRM : 0) |
(desc_edpt->wMaxPacketSize.size << USB_OTG_DIEPCTL_MPSIZ_Pos);
dev->DAINTMSK |= (1 << (USB_OTG_DAINTMSK_IEPM_Pos + epnum));
// Both TXFD and TXSA are in unit of 32-bit words.
@ -352,9 +354,9 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
uint8_t const dir = tu_edpt_dir(ep_addr);
xfer_ctl_t * xfer = XFER_CTL_BASE(epnum, dir);
xfer->buffer = buffer;
xfer->total_len = total_bytes;
xfer->queued_len = 0;
xfer->buffer = buffer;
xfer->total_len = total_bytes;
xfer->queued_len = 0;
xfer->short_packet = false;
uint16_t num_packets = (total_bytes / xfer->max_size);
@ -365,21 +367,23 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
num_packets++;
}
// IN and OUT endpoint xfers are interrupt-driven, we just schedule them
// here.
// IN and OUT endpoint xfers are interrupt-driven, we just schedule them here.
if(dir == TUSB_DIR_IN) {
// A full IN transfer (multiple packets, possibly) triggers XFRC.
in_ep[epnum].DIEPTSIZ = (num_packets << USB_OTG_DIEPTSIZ_PKTCNT_Pos) | \
((total_bytes & USB_OTG_DIEPTSIZ_XFRSIZ_Msk) << USB_OTG_DIEPTSIZ_XFRSIZ_Pos);
in_ep[epnum].DIEPTSIZ = (num_packets << USB_OTG_DIEPTSIZ_PKTCNT_Pos) |
((total_bytes & USB_OTG_DIEPTSIZ_XFRSIZ_Msk) << USB_OTG_DIEPTSIZ_XFRSIZ_Pos);
in_ep[epnum].DIEPCTL |= USB_OTG_DIEPCTL_EPENA | USB_OTG_DIEPCTL_CNAK;
// Enable fifo empty interrupt only if there are something to put in the fifo.
if(total_bytes != 0) {
dev->DIEPEMPMSK |= (1 << epnum);
}
} else {
// Each complete packet for OUT xfers triggers XFRC.
out_ep[epnum].DOEPTSIZ |= (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) | \
((xfer->max_size & USB_OTG_DOEPTSIZ_XFRSIZ_Msk) << USB_OTG_DOEPTSIZ_XFRSIZ_Pos);
out_ep[epnum].DOEPTSIZ |= (1 << USB_OTG_DOEPTSIZ_PKTCNT_Pos) |
((xfer->max_size & USB_OTG_DOEPTSIZ_XFRSIZ_Msk) << USB_OTG_DOEPTSIZ_XFRSIZ_Pos);
out_ep[epnum].DOEPCTL |= USB_OTG_DOEPCTL_EPENA | USB_OTG_DOEPCTL_CNAK;
}
@ -535,6 +539,7 @@ static void receive_packet(xfer_ctl_t * xfer, /* USB_OTG_OUTEndpointTypeDef * ou
xfer->short_packet = (xfer_size < xfer->max_size);
}
// Write a data packet to EPIN FIFO
static void transmit_packet(xfer_ctl_t * xfer, USB_OTG_INEndpointTypeDef * in_ep, uint8_t fifo_num) {
usb_fifo_t tx_fifo = FIFO_BASE(fifo_num);
@ -658,21 +663,30 @@ static void handle_epout_ints(USB_OTG_DeviceTypeDef * dev, USB_OTG_OUTEndpointTy
static void handle_epin_ints(USB_OTG_DeviceTypeDef * dev, USB_OTG_INEndpointTypeDef * in_ep) {
// DAINT for a given EP clears when DIEPINTx is cleared.
// IEPINT will be cleared when DAINT's out bits are cleared.
for(uint8_t n = 0; n < EP_MAX; n++) {
xfer_ctl_t * xfer = XFER_CTL_BASE(n, TUSB_DIR_IN);
for ( uint8_t n = 0; n < EP_MAX; n++ )
{
xfer_ctl_t *xfer = XFER_CTL_BASE(n, TUSB_DIR_IN);
if(dev->DAINT & (1 << (USB_OTG_DAINT_IEPINT_Pos + n))) {
if ( dev->DAINT & (1 << (USB_OTG_DAINT_IEPINT_Pos + n)) )
{
// IN XFER complete (entire xfer).
if(in_ep[n].DIEPINT & USB_OTG_DIEPINT_XFRC) {
if ( in_ep[n].DIEPINT & USB_OTG_DIEPINT_XFRC )
{
in_ep[n].DIEPINT = USB_OTG_DIEPINT_XFRC;
dev->DIEPEMPMSK &= ~(1 << n); // Turn off TXFE b/c xfer inactive.
dcd_event_xfer_complete(0, n | TUSB_DIR_IN_MASK, xfer->total_len, XFER_RESULT_SUCCESS, true);
}
// XFER FIFO empty
if(in_ep[n].DIEPINT & USB_OTG_DIEPINT_TXFE) {
if ( in_ep[n].DIEPINT & USB_OTG_DIEPINT_TXFE )
{
in_ep[n].DIEPINT = USB_OTG_DIEPINT_TXFE;
transmit_packet(xfer, &in_ep[n], n);
// Turn off TXFE if all bytes are written.
if (xfer->queued_len == xfer->total_len)
{
dev->DIEPEMPMSK &= ~(1 << n);
}
}
}
}