Add event handlers (#1)

* Add rx event handlers

* Fix compile errors and add constness

* Pass sender id

* Change api interface

* Revert changes

* Add filter fifo

Inc/mmr_can.h

@@ -11,6 +11,12 @@
 #define MMR_CAN_RX_FIFO CAN_RX_FIFO0
 #endif
 
+#if MMR_CAN_RX_FIFO == CAN_RX_FIFO0
+#define MMR_CAN_FILTER_FIFO CAN_FILTER_FIFO0
+#else
+#define MMR_CAN_FILTER_FIFO CAN_FILTER_FIFO1
+#endif
+
 #if MMR_CAN_RX_FIFO == CAN_RX_FIFO0
 #define MMR_CAN_RX_INTERRUPT CAN_IT_RX_FIFO0_MSG_PENDING
 #else

Inc/mmr_can_events.h

@@ -0,0 +1,22 @@
+#ifndef INC_MMR_CAN_EVENTS_H_
+#define INC_MMR_CAN_EVENTS_H_
+
+#include "mmr_can.h"
+
+typedef struct {
+  CanId senderId;
+  uint8_t *message;
+} MmrCanEvent;
+
+typedef void (*MmrCanEventHandler)(MmrCanEvent *event);
+
+typedef struct {
+  const MmrCanEventHandler *handlers;
+  const size_t count;
+} MmrCanEventList;
+
+
+void MMR_CAN_InitRxHandlers(const MmrCanEventList *rxEvents);
+
+
+#endif /* INC_MMR_CAN_EVENTS_H_ */

Inc/mmr_can_types.h

@@ -33,7 +33,7 @@ typedef uint8_t CanFilterBank;
 
 typedef HAL_StatusTypeDef HalStatus;
 typedef CAN_HandleTypeDef CanHandle;
-typedef CAN_TxHeaderTypeDef CanTxHeader;
 typedef CAN_RxHeaderTypeDef CanRxHeader;
+typedef CAN_TxHeaderTypeDef CanTxHeader;
 
 #endif /* INC_MMR_CAN_TYPES_H_ */

Inc/mmr_can_util.h

@@ -4,6 +4,9 @@
 #include <stdint.h>
 #include <string.h>
 
+#define arrayLength(array) \
+  (sizeof(array) / sizeof(*(array)))
+
 #define stringArrayLength(array) \
   stringBufferLength((array), sizeof(array))