Add skeleton of the API and data structures.

1 files changed, 47 insertions, 0 deletions

diff --git a/src/obd2/obd2.c b/src/obd2/obd2.c
new file mode 100644
index 00000000..9b4ea92d
--- /dev/null
+++ b/src/obd2/obd2.c
@@ -0,0 +1,47 @@
+#include <obd2/obd2.h>
+
+DiagnosticShims diagnostic_init_shims(LogShim log,
+        SendCanMessageShim send_can_message,
+        SetTimerShim set_timer) {
+}
+
+DiagnosticRequestHandle diagnostic_request(DiagnosticShims* shims,
+        DiagnosticRequest* request, DiagnosticResponseReceived callback) {
+}
+
+// decide mode 0x1 / 0x22 based on pid type
+DiagnosticRequestHandle diagnostic_request_pid(DiagnosticShims* shims,
+        DiagnosticPidRequestType pid_request_type, uint16_t pid,
+        DiagnosticResponseReceived callback) {
+}
+
+// TODO request malfunction indicator light (MIL) status - request mode 1 pid 1,
+//      parse first bit
+DiagnosticRequestHandle diagnostic_request_malfunction_indicator_status(
+        DiagnosticShims* shims,
+        DiagnosticMilStatusReceived callback) {
+}
+
+DiagnosticRequestHandle diagnostic_request_vin(DiagnosticShims* shims,
+        DiagnosticVinReceived callback) {
+}
+
+DiagnosticRequestHandle diagnostic_request_dtc(DiagnosticShims* shims,
+        DiagnosticTroubleCodeType dtc_type,
+        DiagnosticTroubleCodesReceived callback) {
+}
+
+bool diagnostic_clear_dtc(DiagnosticShims* shims) {
+}
+
+// before calling the callback, split up the received bytes into 1 or 2 byte
+// chunks depending on the mode so the final pid list is actual 1 or 2 byte PIDs
+// TODO request supported PIDs  - request PID 0 and parse 4 bytes in response
+DiagnosticRequestHandle diagnostic_enumerate_pids(DiagnosticShims* shims,
+        DiagnosticRequest* request, DiagnosticPidEnumerationReceived callback) {
+}
+
+void diagnostic_receive_can_frame(DiagnosticRequestHandle* handler,
+        const uint16_t arbitration_id, const uint8_t data[],
+        const uint8_t size) {
+}