initial git import

src/common/call.h

@@ -0,0 +1,26 @@
+
+int call_init(const char *station_id, const char *sounddev, int samplerate, int latency, int loopback);
+void call_cleanup(void);
+int process_call(void);
+
+/* received messages */
+int call_in_setup(int callref, const char *callerid, const char *dialing);
+void call_in_alerting(int callref);
+void call_in_answer(int callref, const char *connecid);
+void call_in_release(int callref, int cause);
+
+/* send messages */
+int call_out_setup(int callref, char *dialing);
+void call_out_disconnect(int callref, int cause);
+void call_out_release(int callref, int cause);
+
+/* send and receive audio */
+void call_rx_audio(int callref, int16_t *samples, int count);
+void call_tx_audio(int callref, int16_t *samples, int count);
+
+/* receive from mncc */
+void call_mncc_recv(uint8_t *buf, int length);
+void call_mncc_flush(void);
+/* clock to transmit to */
+void call_mncc_clock(void);
+