Add skeleton tests for receiving and sending ISO-TP messages.

1 files changed, 43 insertions, 1 deletions

diff --git a/src/isotp/isotp.c b/src/isotp/isotp.c
index 1b7f398b..da7fa29d 100644
--- a/src/isotp/isotp.c
+++ b/src/isotp/isotp.c
@@ -1,3 +1,9 @@
+#include <isotp/isotp.h>
+
+const uint16_t MAX_ISO_TP_MESSAGE_SIZE = 4096;
+const uint16_t MAX_CAN_FRAME_SIZE = 8;
+const uint8_t ISO_TP_DEFAULT_RESPONSE_TIMEOUT = 100;
+const bool ISO_TP_DEFAULT_FRAME_PADDING_STATUS = true;
 
 void isotp_receive_can_frame(const uint16_t arbitration_id, const uint8_t* data,
         const uint8_t length) {
@@ -10,5 +16,41 @@ bool isotp_send(const uint8_t* payload, uint16_t payload_size) {
      // we determine if it's single/multi frame and start the send
 }
 
-void isotp_set_timeout(uint16_t timeout) {
+void isotp_set_timeout(IsoTpHandler* handler, uint16_t timeout_ms) {
+    handler->timeout_ms = timeout_ms;
+}
+
+IsoTpShims isotp_init_shims(LogShim log, SendCanMessageShim send_can_message,
+        SetTimerShim set_timer) {
+    IsoTpShims shims = {
+        log: log,
+        send_can_message: send_can_message,
+        set_timer: set_timer
+    };
+    return shims;
+}
+
+IsoTpHandler isotp_init(IsoTpShims* shims, uint16_t arbitration_id,
+        IsoTpMessageReceivedHandler message_received_callback,
+        IsoTpMessageSentHandler message_sent_callback,
+        IsoTpCanFrameSentHandler can_frame_sent_callback) {
+    IsoTpHandler handler = {
+        shims: shims,
+        message_received_callback: message_received_callback,
+        message_sent_callback: message_sent_callback,
+        can_frame_sent_callback: can_frame_sent_callback,
+        timeout_ms: ISO_TP_DEFAULT_RESPONSE_TIMEOUT,
+        frame_padding: ISO_TP_DEFAULT_FRAME_PADDING_STATUS,
+        sending: false
+    };
+    return handler;
+}
+
+// TODO this would be better as a "isotp_message_to_string"
+void log_isotp_message(const uint16_t arbitration_id,
+        const uint8_t* payload, const uint16_t size) {
+    debug("ID: 0x%02x, Payload:", arbitration_id);
+    for(int i = 0; i < size; i++) {
+        debug("0x%x", payload[i]);
+    }
 }