evse_link feature

components/evse_link/include/evse_link.h

@@ -0,0 +1,45 @@
+#ifndef EVSE_LINK_H_
+#define EVSE_LINK_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+// Operation mode: slave or master
+typedef enum {
+    EVSE_LINK_MODE_SLAVE = 0,
+    EVSE_LINK_MODE_MASTER = 1
+} evse_link_mode_t;
+
+// Callback invoked when a complete frame is received:
+//   src:     device address of sender (0–255)
+//   dest:    device address of receiver (0–255 or 0xFF broadcast)
+//   payload: pointer to received data buffer (command + data)
+//   len:     length of payload (0–255)
+typedef void (*evse_link_rx_cb_t)(uint8_t src, uint8_t dest,
+                                  const uint8_t *payload, uint8_t len);
+
+// Initializes the EVSE-Link component
+void evse_link_init(void);
+
+// Sends a framed payload to `dest` with length `len`.
+// The source address is automatically set from configuration.
+// Returns true on successful enqueue/transmit.
+bool evse_link_send(uint8_t dest, const uint8_t *payload, uint8_t len);
+
+// Feeds a received byte into the framing parser.
+void evse_link_recv_byte(uint8_t byte);
+
+// Registers a callback to receive complete frames.
+void evse_link_register_rx_cb(evse_link_rx_cb_t cb);
+
+// Runtime configuration getters/setters
+void              evse_link_set_mode(evse_link_mode_t mode);
+evse_link_mode_t  evse_link_get_mode(void);
+
+void evse_link_set_self_id(uint8_t id);
+uint8_t evse_link_get_self_id(void);
+
+void evse_link_set_enabled(bool enabled);
+bool evse_link_is_enabled(void);
+
+#endif // EVSE_LINK_H_