diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/portable/nordic/nrf5x/dcd_nrf5x.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c index 6b2cd83fd..e70565a02 100644 --- a/src/portable/nordic/nrf5x/dcd_nrf5x.c +++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c @@ -79,6 +79,9 @@ typedef struct } xfer_td_t; +static osal_mutex_def_t dcd_mutex_def; +static osal_mutex_t dcd_mutex; + // Data for managing dcd static struct { @@ -154,6 +157,7 @@ static void edpt_dma_start(volatile uint32_t* reg_startep) // Should be safe to blocking wait until previous DMA transfer complete uint8_t const rhport = 0; bool started = false; + osal_mutex_lock(dcd_mutex, OSAL_TIMEOUT_WAIT_FOREVER); while(!started) { // LDREX/STREX may be needed in form of std atomic (required C11) or @@ -170,6 +174,7 @@ static void edpt_dma_start(volatile uint32_t* reg_startep) // osal_yield(); } + osal_mutex_unlock(dcd_mutex); } } @@ -243,6 +248,7 @@ static void xact_in_dma(uint8_t epnum) void dcd_init (uint8_t rhport) { TU_LOG1("dcd init\r\n"); + dcd_mutex = osal_mutex_create(&dcd_mutex_def); (void) rhport; } |