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dcd/dwc2: cleanup previous pending EP0 IN transfer if a SETUP packet is received

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Signed-off-by: Mengsk <admin@hifiphile.com>
This commit is contained in:
Mengsk
2025-10-07 12:53:50 +02:00
parent fedcdefa3d
commit 16dd74912f
1 changed files with 11 additions and 2 deletions
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13
src/portable/synopsys/dwc2/dcd_dwc2.c
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@@ -282,8 +282,7 @@ static void edpt_disable(uint8_t rhport, uint8_t ep_addr, bool stall) {
dwc2_dep_t* dep = &dwc2->ep[dir == TUSB_DIR_IN ? 0 : 1][epnum];
if (dir == TUSB_DIR_IN) {
// Only disable currently enabled non-control endpoint
if ((epnum == 0) || !(dep->diepctl & DIEPCTL_EPENA)) {
if (!(dep->diepctl & DIEPCTL_EPENA)) {
dep->diepctl |= DIEPCTL_SNAK | (stall ? DIEPCTL_STALL : 0);
} else {
// Stop transmitting packets and NAK IN xfers.
@@ -841,6 +840,11 @@ static void handle_rxflvl_irq(uint8_t rhport) {
static void handle_epout_slave(uint8_t rhport, uint8_t epnum, dwc2_doepint_t doepint_bm) {
if (doepint_bm.setup_phase_done) {
// Cleanup previous pending EP0 IN transfer if any
dwc2_dep_t* epin0 = &DWC2_REG(rhport)->epin[0];
if (epin0->diepctl & DIEPCTL_EPENA) {
edpt_disable(rhport, 0x80, false);
}
dcd_event_setup_received(rhport, _dcd_usbbuf.setup_packet, true);
return;
}
@@ -919,6 +923,11 @@ static void handle_epout_dma(uint8_t rhport, uint8_t epnum, dwc2_doepint_t doepi
dwc2_regs_t* dwc2 = DWC2_REG(rhport);
if (doepint_bm.setup_phase_done) {
// Cleanup previous pending EP0 IN transfer if any
dwc2_dep_t* epin0 = &DWC2_REG(rhport)->epin[0];
if (epin0->diepctl & DIEPCTL_EPENA) {
edpt_disable(rhport, 0x80, false);
}
dma_setup_prepare(rhport);
dcd_dcache_invalidate(_dcd_usbbuf.setup_packet, 8);
dcd_event_setup_received(rhport, _dcd_usbbuf.setup_packet, true);