Implement the serial communication functions as no-ops

For the socket based I/O stream implementations (IrDA and bluetooth) the
serial communication specific functions are meaningless. Implementing
them as no-ops allows the dive computer backends the call the I/O stream
functions unconditionally.

This is important for the bluetooth implementation, because bluetooth
enabled dive computers will be able to use both the native bluetooth
communication and the legacy bluetooth serial port emulation.

src/bluetooth.c

@@ -65,19 +65,19 @@
 static const dc_iostream_vtable_t dc_bluetooth_vtable = {
 	sizeof(dc_socket_t),
 	dc_socket_set_timeout, /* set_timeout */
-	NULL, /* set_latency */
-	NULL, /* set_halfduplex */
-	NULL, /* set_break */
-	NULL, /* set_dtr */
-	NULL, /* set_rts */
-	NULL, /* get_lines */
+	dc_socket_set_latency, /* set_latency */
+	dc_socket_set_halfduplex, /* set_halfduplex */
+	dc_socket_set_break, /* set_break */
+	dc_socket_set_dtr, /* set_dtr */
+	dc_socket_set_rts, /* set_rts */
+	dc_socket_get_lines, /* get_lines */
 	dc_socket_get_available, /* get_received */
-	NULL, /* configure */
+	dc_socket_configure, /* configure */
 	dc_socket_read, /* read */
 	dc_socket_write, /* write */
-	NULL, /* flush */
-	NULL, /* purge */
-	NULL, /* sleep */
+	dc_socket_flush, /* flush */
+	dc_socket_purge, /* purge */
+	dc_socket_sleep, /* sleep */
 	dc_socket_close, /* close */
 };
 

src/irda.c

@@ -56,19 +56,19 @@
 static const dc_iostream_vtable_t dc_irda_vtable = {
 	sizeof(dc_socket_t),
 	dc_socket_set_timeout, /* set_timeout */
-	NULL, /* set_latency */
-	NULL, /* set_halfduplex */
-	NULL, /* set_break */
-	NULL, /* set_dtr */
-	NULL, /* set_rts */
-	NULL, /* get_lines */
+	dc_socket_set_latency, /* set_latency */
+	dc_socket_set_halfduplex, /* set_halfduplex */
+	dc_socket_set_break, /* set_break */
+	dc_socket_set_dtr, /* set_dtr */
+	dc_socket_set_rts, /* set_rts */
+	dc_socket_get_lines, /* get_lines */
 	dc_socket_get_available, /* get_received */
-	NULL, /* configure */
+	dc_socket_configure, /* configure */
 	dc_socket_read, /* read */
 	dc_socket_write, /* write */
-	NULL, /* flush */
-	NULL, /* purge */
-	NULL, /* sleep */
+	dc_socket_flush, /* flush */
+	dc_socket_purge, /* purge */
+	dc_socket_sleep, /* sleep */
 	dc_socket_close, /* close */
 };
 #endif

src/socket.c

@@ -163,6 +163,45 @@ dc_socket_set_timeout (dc_iostream_t *abstract, int timeout)
 	return DC_STATUS_SUCCESS;
 }
 
+dc_status_t
+dc_socket_set_latency (dc_iostream_t *iostream, unsigned int value)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_set_halfduplex (dc_iostream_t *iostream, unsigned int value)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_set_break (dc_iostream_t *iostream, unsigned int value)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_set_dtr (dc_iostream_t *iostream, unsigned int value)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_set_rts (dc_iostream_t *iostream, unsigned int value)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_get_lines (dc_iostream_t *iostream, unsigned int *value)
+{
+	if (value)
+		*value = 0;
+
+	return DC_STATUS_SUCCESS;
+}
+
 dc_status_t
 dc_socket_get_available (dc_iostream_t *abstract, size_t *value)
 {
@@ -186,6 +225,12 @@ dc_socket_get_available (dc_iostream_t *abstract, size_t *value)
 	return DC_STATUS_SUCCESS;
 }
 
+dc_status_t
+dc_socket_configure (dc_iostream_t *abstract, unsigned int baudrate, unsigned int databits, dc_parity_t parity, dc_stopbits_t stopbits, dc_flowcontrol_t flowcontrol)
+{
+	return DC_STATUS_SUCCESS;
+}
+
 dc_status_t
 dc_socket_read (dc_iostream_t *abstract, void *data, size_t size, size_t *actual)
 {
@@ -293,3 +338,21 @@ out:
 
 	return status;
 }
+
+dc_status_t
+dc_socket_flush (dc_iostream_t *abstract)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_purge (dc_iostream_t *abstract, dc_direction_t direction)
+{
+	return DC_STATUS_SUCCESS;
+}
+
+dc_status_t
+dc_socket_sleep (dc_iostream_t *abstract, unsigned int timeout)
+{
+	return DC_STATUS_SUCCESS;
+}

src/socket.h

@@ -104,15 +104,48 @@ dc_socket_connect (dc_iostream_t *iostream, const struct sockaddr *addr, s_sockl
 dc_status_t
 dc_socket_set_timeout (dc_iostream_t *iostream, int timeout);
 
+dc_status_t
+dc_socket_set_latency (dc_iostream_t *iostream, unsigned int value);
+
+dc_status_t
+dc_socket_set_halfduplex (dc_iostream_t *iostream, unsigned int value);
+
+dc_status_t
+dc_socket_set_break (dc_iostream_t *iostream, unsigned int value);
+
+dc_status_t
+dc_socket_set_dtr (dc_iostream_t *iostream, unsigned int value);
+
+dc_status_t
+dc_socket_set_rts (dc_iostream_t *iostream, unsigned int value);
+
+dc_status_t
+dc_socket_get_lines (dc_iostream_t *iostream, unsigned int *value);
+
 dc_status_t
 dc_socket_get_available (dc_iostream_t *iostream, size_t *value);
 
+dc_status_t
+dc_socket_configure (dc_iostream_t *iostream, unsigned int baudrate, unsigned int databits, dc_parity_t parity, dc_stopbits_t stopbits, dc_flowcontrol_t flowcontrol);
+
 dc_status_t
 dc_socket_read (dc_iostream_t *iostream, void *data, size_t size, size_t *actual);
 
 dc_status_t
 dc_socket_write (dc_iostream_t *iostream, const void *data, size_t size, size_t *actual);
 
+dc_status_t
+dc_socket_flush (dc_iostream_t *iostream);
+
+dc_status_t
+dc_socket_purge (dc_iostream_t *iostream, dc_direction_t direction);
+
+dc_status_t
+dc_socket_sleep (dc_iostream_t *iostream, unsigned int milliseconds);
+
+dc_status_t
+dc_socket_close (dc_iostream_t *iostream);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */