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edpt_dma_start() is called during interrupt time as well, dcd_edpt_xfer() needs DI/EI at one point

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This commit is contained in:
Hardy Griech 2024-05-06 08:42:08 +02:00
parent a435befcde
commit 82547372d1
1 changed files with 17 additions and 1 deletions
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18
src/portable/nordic/nrf5x/dcd_nrf5x.c
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@ -77,6 +77,18 @@
#endif
#endif
/** disable interrupts */
#define DISABLE_IRQ() \
uint32_t prim = __get_PRIMASK(); \
__disable_irq();
/** (re)enable interrupts */
#define ENABLE_IRQ() \
if (!prim) \
{ \
__enable_irq(); \
}
/*------------------------------------------------------------------*/
/* MACRO TYPEDEF CONSTANT ENUM
*------------------------------------------------------------------*/
@ -147,7 +159,7 @@ static void start_dma(volatile uint32_t* reg_startep) {
static void edpt_dma_start(volatile uint32_t* reg_startep) {
if (atomic_flag_test_and_set(&_dcd.dma_running)) {
usbd_defer_func((osal_task_func_t)(uintptr_t ) edpt_dma_start, (void*) (uintptr_t) reg_startep, true);
usbd_defer_func((osal_task_func_t)(uintptr_t ) edpt_dma_start, (void*) (uintptr_t) reg_startep, is_in_isr());
} else {
start_dma(reg_startep);
}
@ -434,11 +446,15 @@ bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t to
bool const control_status = (epnum == 0 && total_bytes == 0 && dir != tu_edpt_dir(NRF_USBD->BMREQUESTTYPE));
if (control_status) {
DISABLE_IRQ();
// Status Phase also requires EasyDMA has to be available as well !!!!
edpt_dma_start(&NRF_USBD->TASKS_EP0STATUS);
// The nRF doesn't interrupt on status transmit so we queue up a success response.
dcd_event_xfer_complete(0, ep_addr, 0, XFER_RESULT_SUCCESS, is_in_isr());
ENABLE_IRQ();
} else if (dir == TUSB_DIR_OUT) {
xfer->started = true;
if (epnum == 0) {