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[STM32 FSDEV] Fix ISR race conditions

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This commit is contained in:
Okarss 2024-01-07 20:18:33 +02:00
parent ae364b1460
commit 0d4b24e56c
1 changed files with 5 additions and 5 deletions
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10
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
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@ -673,13 +673,13 @@ void dcd_int_handler(uint8_t rhport) {
/* Put SOF flag at the beginning of ISR in case to get least amount of jitter if it is used for timing purposes */
if(int_status & USB_ISTR_SOF) {
USB->ISTR &=~USB_ISTR_SOF;
USB->ISTR = ~USB_ISTR_SOF;
dcd_event_sof(0, USB->FNR & USB_FNR_FN, true);
}
if(int_status & USB_ISTR_RESET) {
// USBRST is start of reset.
USB->ISTR &=~USB_ISTR_RESET;
USB->ISTR = ~USB_ISTR_RESET;
dcd_handle_bus_reset();
dcd_event_bus_reset(0, TUSB_SPEED_FULL, true);
return; // Don't do the rest of the things here; perhaps they've been cleared?
@ -697,7 +697,7 @@ void dcd_int_handler(uint8_t rhport) {
USB->CNTR &= ~USB_CNTR_LPMODE;
USB->CNTR &= ~USB_CNTR_FSUSP;
USB->ISTR &=~USB_ISTR_WKUP;
USB->ISTR = ~USB_ISTR_WKUP;
dcd_event_bus_signal(0, DCD_EVENT_RESUME, true);
}
@ -711,7 +711,7 @@ void dcd_int_handler(uint8_t rhport) {
USB->CNTR |= USB_CNTR_LPMODE;
/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
USB->ISTR &=~USB_ISTR_SUSP;
USB->ISTR = ~USB_ISTR_SUSP;
dcd_event_bus_signal(0, DCD_EVENT_SUSPEND, true);
}
@ -724,7 +724,7 @@ void dcd_int_handler(uint8_t rhport) {
{
remoteWakeCountdown--;
}
USB->ISTR &=~USB_ISTR_ESOF;
USB->ISTR = ~USB_ISTR_ESOF;
}
}