1 files changed, 51 insertions, 0 deletions
diff --git a/plugins/packet_radio/tnc_host.h b/plugins/packet_radio/tnc_host.h
new file mode 100644
index 0000000..af55505
--- /dev/null
+++ b/plugins/packet_radio/tnc_host.h
@@ -0,0 +1,51 @@
+#ifndef HYBBX_TNC_HOST_H
+#define HYBBX_TNC_HOST_H
+
+#include "hybbx/types.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum hybbx_tnc_host_state {
+    HYBBX_TNC_HOST_BOOT = 0,
+    HYBBX_TNC_HOST_CMD = 1,
+    HYBBX_TNC_HOST_CONNECTED = 2
+} hybbx_tnc_host_state_t;
+
+typedef void (*hybbx_tnc_host_text_cb)(const uint8_t *data, size_t len,
+                                         void *userdata);
+
+typedef void (*hybbx_tnc_host_event_cb)(hybbx_tnc_host_state_t state,
+                                        void *userdata);
+
+typedef struct hybbx_tnc_host {
+    hybbx_tnc_host_state_t state;
+    char line[256];
+    size_t line_len;
+    hybbx_tnc_host_text_cb text_cb;
+    hybbx_tnc_host_event_cb event_cb;
+    void *userdata;
+} hybbx_tnc_host_t;
+
+void hybbx_tnc_host_init(hybbx_tnc_host_t *host,
+                         hybbx_tnc_host_text_cb text_cb,
+                         hybbx_tnc_host_event_cb event_cb,
+                         void *userdata);
+
+void hybbx_tnc_host_reset(hybbx_tnc_host_t *host);
+
+void hybbx_tnc_host_feed(hybbx_tnc_host_t *host,
+                         const uint8_t *data, size_t len);
+
+/** Build a TNC2 command line (adds CR). Returns length or 0. */
+size_t hybbx_tnc_host_format_cmd(const char *cmd, char *out, size_t out_cap);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HYBBX_TNC_HOST_H */