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enable SOF interrupt only if not already enabled

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Signed-off-by: HiFiPhile <admin@hifiphile.com>
This commit is contained in:
HiFiPhile
2025-04-19 11:43:28 +02:00
parent b7a26cc33c
commit b3a9b6e37f
1 changed files with 5 additions and 2 deletions
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7
src/portable/synopsys/dwc2/hcd_dwc2.c
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@@ -748,8 +748,11 @@ static void channel_xfer_in_retry(dwc2_regs_t* dwc2, uint8_t ch_id, uint32_t hci
const dwc2_channel_tsize_t hctsiz = {.value = channel->hctsiz};
edpt->next_pid = hctsiz.pid; // save PID
edpt->uframe_countdown = edpt->uframe_interval - ucount;
dwc2->gintsts = GINTSTS_SOF; // SOF flag is probably pending
dwc2->gintmsk |= GINTSTS_SOF;
// enable SOF interrupt if not already enabled
if (!(dwc2->gintmsk & GINTMSK_SOFM)) {
dwc2->gintsts = GINTSTS_SOF;
dwc2->gintmsk |= GINTMSK_SOFM;
}
// already halted, de-allocate channel (called from DMA isr)
channel_dealloc(dwc2, ch_id);
}