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rename, invert logic for iso_in_sending. Also limit its usage to ISO endpoint

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hathach 2024-04-11 20:53:44 +07:00
parent 535571c3d2
commit 0f775630c7
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GPG Key ID: 26FAB84F615C3C52
1 changed files with 14 additions and 9 deletions
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23
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
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@ -152,7 +152,7 @@ typedef struct {
uint16_t queued_len;
uint16_t max_packet_size;
uint8_t ep_idx; // index for USB_EPnR register
bool in_complete; // Workaround for ISO IN EP doesn't have interrupt mask
bool iso_in_sending; // Workaround for ISO IN EP doesn't have interrupt mask
} xfer_ctl_t;
// EP allocator
@ -502,13 +502,15 @@ static void dcd_ep_ctr_tx_handler(uint32_t wIstr)
xfer_ctl_t *xfer = xfer_ctl_ptr(ep_addr);
/* Ignore spurious int */
if (xfer->in_complete) {
return;
}
xfer->in_complete = true;
if ((wEPRegVal & USB_EP_TYPE_MASK) == USB_EP_ISOCHRONOUS) {
// Ignore spurious interrupts that we don't schedule
// host can send IN token while there is no data to send, since ISO does not have NAK
// this will result to zero length packet --> trigger interrupt (which cannot be masked)
if (!xfer->iso_in_sending) {
return;
}
xfer->iso_in_sending = false;
if (wEPRegVal & USB_EP_DTOG_TX) {
pcd_set_ep_tx_dbuf0_cnt(USB, EPindex, 0);
} else {
@ -955,9 +957,10 @@ static void dcd_transmit_packet(xfer_ctl_t *xfer, uint16_t ep_ix)
}
uint16_t ep_reg = pcd_get_endpoint(USB, ep_ix);
bool const is_iso = (ep_reg & USB_EP_TYPE_MASK) == USB_EP_ISOCHRONOUS;
uint16_t addr_ptr;
if ((ep_reg & USB_EP_TYPE_MASK) == USB_EP_ISOCHRONOUS) {
if (is_iso) {
if (ep_reg & USB_EP_DTOG_TX) {
addr_ptr = pcd_get_ep_dbuf1_address(USB, ep_ix);
pcd_set_ep_tx_dbuf1_cnt(USB, ep_ix, len);
@ -979,7 +982,9 @@ static void dcd_transmit_packet(xfer_ctl_t *xfer, uint16_t ep_ix)
dcd_int_disable(0);
pcd_set_ep_tx_status(USB, ep_ix, USB_EP_TX_VALID);
xfer->in_complete = false;
if (is_iso) {
xfer->iso_in_sending = true;
}
dcd_int_enable(0);
}