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fix bulk out and txfifo_empty(), should not rely on hcchar_bm.ep_size for OUT. msc explorer seems to work well.

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hathach
2024-10-31 10:50:09 +07:00
parent 80d8157048
commit 92e7ac6c23
1 changed files with 3 additions and 3 deletions
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6
src/portable/synopsys/dwc2/hcd_dwc2.c
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@@ -882,12 +882,12 @@ bool handle_txfifo_empty(dwc2_regs_t* dwc2, bool is_periodic) {
hcd_xfer_t* xfer = &_hcd_data.xfer[ch_id];
const uint16_t remain_packets = channel->hctsiz_bm.packet_count;
for (uint16_t i = 0; i < remain_packets; i++) {
const uint16_t remain_bytes = (uint16_t) channel->hctsiz_bm.xfer_size;
const uint16_t remain_bytes = xfer->buf_len - xfer->out_fifo_bytes;
const uint16_t xact_bytes = tu_min16(remain_bytes, channel->hcchar_bm.ep_size);
// check if there is enough space in FIFO and RequestQueue.
// skip if there is not enough space in FIFO and RequestQueue.
// Packet's last word written to FIFO will trigger a request queue
if ((xact_bytes > (txsts_bm->fifo_available << 2)) && (txsts_bm->req_queue_available > 0)) {
if ((xact_bytes > (txsts_bm->fifo_available << 2)) || (txsts_bm->req_queue_available == 0)) {
return true;
}