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Diffstat (limited to 'platforms/chibios/drivers/serial_usart.c')
-rw-r--r--platforms/chibios/drivers/serial_usart.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/platforms/chibios/drivers/serial_usart.c b/platforms/chibios/drivers/serial_usart.c
index 85c64214d1..e9fa4af7a3 100644
--- a/platforms/chibios/drivers/serial_usart.c
+++ b/platforms/chibios/drivers/serial_usart.c
@@ -15,6 +15,7 @@
*/
#include "serial_usart.h"
+#include "synchronization_util.h"
#if defined(SERIAL_USART_CONFIG)
static SerialConfig serial_config = SERIAL_USART_CONFIG;
@@ -173,6 +174,7 @@ static THD_FUNCTION(SlaveThread, arg) {
* Parts of failed transactions or spurious bytes could still be in it. */
usart_clear();
}
+ split_shared_memory_unlock();
}
}
@@ -200,6 +202,7 @@ static inline bool react_to_transactions(void) {
return false;
}
+ split_shared_memory_lock();
split_transaction_desc_t* trans = &split_transaction_table[sstd_index];
/* Send back the handshake which is XORed as a simple checksum,
@@ -254,7 +257,12 @@ bool soft_serial_transaction(int index) {
/* Clear the receive queue, to start with a clean slate.
* Parts of failed transactions or spurious bytes could still be in it. */
usart_clear();
- return initiate_transaction((uint8_t)index);
+
+ split_shared_memory_lock();
+ bool result = initiate_transaction((uint8_t)index);
+ split_shared_memory_unlock();
+
+ return result;
}
/**