canbus: Move high-level CAN code to new src/generic/canbus.c

Separate out the high-level command processing logic from the
low-level transmission code.  Place the high-level code in
src/generic/canbus.c .

This also removes the CAN dependency on serial_irq.c .

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

src/generic/canbus.h

@@ -0,0 +1,22 @@
+#ifndef __CANBUS_H__
+#define __CANBUS_H__
+
+#include <stdint.h> // uint32_t
+
+#define CANBUS_ID_UUID 0x321
+#define CANBUS_ID_SET 0x322
+#define CANBUS_ID_UUID_RESP 0x323
+#define CANBUS_UUID_LEN 6
+
+// callbacks provided by board specific code
+int canbus_read(uint32_t *id, uint8_t *data);
+int canbus_send(uint32_t id, uint32_t len, uint8_t *data);
+void canbus_set_dataport(uint32_t id);
+void canbus_reboot(void);
+
+// canbus.c
+void canbus_notify_tx(void);
+void canbus_notify_rx(void);
+void canbus_set_uuid(void *data);
+
+#endif // canbus.h