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only check SNDBAV IRQ if there is data to send

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Cumhur Onat 2024-07-21 23:32:48 -04:00 committed by hathach
parent 5bb2e66ce7
commit c7851e8dcb
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1 changed files with 2 additions and 1 deletions
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src/portable/analog/max3421/hcd_max3421.c
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@ -629,8 +629,9 @@ static void xact_out(uint8_t rhport, max3421_ep_t *ep, bool switch_ep, bool in_i
if (!ep->received_nak){
// do not write to fifo or sdnbc register again if previous attempt got NAK
uint8_t const xact_len = (uint8_t) tu_min16(ep->total_len - ep->xferred_len, ep->packet_size);
TU_ASSERT(_hcd_data.hirq & HIRQ_SNDBAV_IRQ,);
if (xact_len) {
// only check SNDBAV IRQ if there is data to send
TU_ASSERT(_hcd_data.hirq & HIRQ_SNDBAV_IRQ,);
fifo_write(rhport, SNDFIFO_ADDR, ep->buf, xact_len, in_isr);
}