diff options
| -rw-r--r-- | src/portable/nordic/nrf5x/dcd_nrf5x.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c index e70565a02..024ea0d90 100644 --- a/src/portable/nordic/nrf5x/dcd_nrf5x.c +++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c @@ -463,11 +463,17 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t xfer_td_t* xfer = get_td(epnum, dir); - dcd_int_disable(rhport); + if (!is_in_isr()) { + osal_mutex_lock(dcd_mutex, OSAL_TIMEOUT_WAIT_FOREVER); + dcd_int_disable(rhport); + } xfer->buffer = buffer; xfer->total_len = total_bytes; xfer->actual_len = 0; - dcd_int_enable(rhport); + if (!is_in_isr()) { + dcd_int_enable(rhport); + osal_mutex_unlock(dcd_mutex); + } // Control endpoint with zero-length packet and opposite direction to 1st request byte --> status stage bool const control_status = (epnum == 0 && total_bytes == 0 && dir != tu_edpt_dir(NRF_USBD->BMREQUESTTYPE)); |