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ST FSDEV: No need to always reset the interrupt priority, also add some synchronization primitives after disabling interrupts.

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This commit is contained in:
Nathan Conrad 2019-09-16 22:56:17 -04:00
parent a33a854793
commit 89ffe78f84
1 changed files with 4 additions and 4 deletions
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8
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
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@ -258,12 +258,8 @@ void dcd_int_enable (uint8_t rhport)
{
(void)rhport;
#if defined(STM32F0)
NVIC_SetPriority(USB_IRQn, 0);
NVIC_EnableIRQ(USB_IRQn);
#elif defined(STM32F3)
NVIC_SetPriority(USB_HP_CAN_TX_IRQn, 0);
NVIC_SetPriority(USB_LP_CAN_RX0_IRQn, 0);
NVIC_SetPriority(USBWakeUp_IRQn, 0);
NVIC_EnableIRQ(USB_HP_CAN_TX_IRQn);
NVIC_EnableIRQ(USB_LP_CAN_RX0_IRQn);
NVIC_EnableIRQ(USBWakeUp_IRQn);
@ -283,6 +279,10 @@ void dcd_int_disable(uint8_t rhport)
#else
#error Unknown arch in USB driver
#endif
// I'm not convinced that memory synchronization is completely necessary, but
// it isn't a bad idea.
__DSB();
__ISB();
}
// Receive Set Address request, mcu port must also include status IN response