1 files changed, 52 insertions, 0 deletions
diff --git a/plugins/packet_radio/serial_port.h b/plugins/packet_radio/serial_port.h
new file mode 100644
index 0000000..549d3c5
--- /dev/null
+++ b/plugins/packet_radio/serial_port.h
@@ -0,0 +1,52 @@
+#ifndef HYBBX_SERIAL_PORT_H
+#define HYBBX_SERIAL_PORT_H
+
+#include "hybbx/types.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct hybbx_serial_port hybbx_serial_port_t;
+
+typedef enum hybbx_serial_parity {
+    HYBBX_SERIAL_PARITY_NONE = 0,
+    HYBBX_SERIAL_PARITY_EVEN = 1,
+    HYBBX_SERIAL_PARITY_ODD = 2
+} hybbx_serial_parity_t;
+
+typedef struct hybbx_serial_params {
+    unsigned int baud;
+    unsigned int data_bits;
+    hybbx_serial_parity_t parity;
+    unsigned int stop_bits;
+    int assert_modem_lines;
+} hybbx_serial_params_t;
+
+void hybbx_serial_params_default(hybbx_serial_params_t *params,
+                               unsigned int baud);
+
+hybbx_result_t hybbx_serial_open(hybbx_serial_port_t **out,
+                                 const char *device,
+                                 const hybbx_serial_params_t *params);
+
+void hybbx_serial_close(hybbx_serial_port_t *port);
+
+hybbx_result_t hybbx_serial_write(hybbx_serial_port_t *port,
+                                  const uint8_t *data, size_t len);
+
+hybbx_result_t hybbx_serial_read(hybbx_serial_port_t *port,
+                                 uint8_t *buf, size_t buf_len,
+                                 size_t *read_len);
+
+/** POSIX serial fd for poll/select; returns -1 when unavailable. */
+int hybbx_serial_fd(const hybbx_serial_port_t *port);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HYBBX_SERIAL_PORT_H */