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-rw-r--r--platforms/chibios/drivers/serial_usart.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/platforms/chibios/drivers/serial_usart.c b/platforms/chibios/drivers/serial_usart.c
index 6581a5b6e9..6ebbf7c8ca 100644
--- a/platforms/chibios/drivers/serial_usart.c
+++ b/platforms/chibios/drivers/serial_usart.c
@@ -72,27 +72,17 @@ inline void serial_transport_driver_clear(void) {
#elif HAL_USE_SIO
-void clear_rx_evt_cb(SIODriver* siop) {
- osalSysLockFromISR();
- /* If errors occured during transactions this callback is invoked. We just
- * clear the error sources and move on. We rely on the fact that we check
- * for the success of the transaction by comparing the received/send bytes
- * with the actual received/send bytes in the send/receive functions. */
- sioGetAndClearEventsI(serial_driver);
- osalSysUnlockFromISR();
-}
-
-static const SIOOperation serial_usart_operation = {.rx_cb = NULL, .rx_idle_cb = NULL, .tx_cb = NULL, .tx_end_cb = NULL, .rx_evt_cb = &clear_rx_evt_cb};
-
/**
* @brief SIO Driver startup routine.
*/
static inline void usart_driver_start(void) {
sioStart(serial_driver, &serial_config);
- sioStartOperation(serial_driver, &serial_usart_operation);
}
inline void serial_transport_driver_clear(void) {
+ if (sioHasRXErrorsX(serial_driver)) {
+ sioGetAndClearErrors(serial_driver);
+ }
osalSysLock();
while (!sioIsRXEmptyX(serial_driver)) {
(void)sioGetX(serial_driver);
@@ -132,10 +122,10 @@ inline bool serial_transport_send(const uint8_t* source, const size_t size) {
return serial_transport_receive(dump, bytes_left);
# else
/* The SIO driver directly accesses the hardware FIFOs of the USART
- * peripheral. As these are limited in depth, the RX FIFO might have been
- * overflowed by a large that we just send. Therefore we attempt to read
- * back all the data we send or until the FIFO runs empty in case it
- * overflowed and data was truncated. */
+ * peripheral. As these are limited in depth, the RX FIFO might have
+ * been overflowed by a large transaction that we just send. Therefore
+ * we attempt to read back all the data we send or until the FIFO runs
+ * empty in case it overflowed and data was truncated. */
if (unlikely(sioSynchronizeTXEnd(serial_driver, TIME_MS2I(SERIAL_USART_TIMEOUT)) < MSG_OK)) {
return false;
}