e1_input: rework configuration of virtual E1 line operations

 struct e1inp_line_ops {
-       enum e1inp_line_role    role;
-       char                    *addr;
-       void                    *data;
+       union {
+               struct {
+                       enum e1inp_line_role role;      /* BSC or BTS mode. */
+                       const char *addr;               /* IP address .*/
+                       void *dev;                      /* device parameters. */
+               } ipa;
+               struct {
+                       const char *port;       /* e.g. /dev/ttyUSB0 */
+                       unsigned int delay;
+               } rs232;
+       } cfg;

Now this structure contains the configuration details for the
virtual E1 line, instead of using a pointer.

This also get the line_update callback to its original layout:

+       int (*line_update)(struct e1inp_line *line);

1 files changed, 4 insertions, 5 deletions

diff --git a/src/input/rs232.c b/src/input/rs232.c
index eb6b5d08..2fd2a09b 100644
--- a/src/input/rs232.c
+++ b/src/input/rs232.c
@@ -277,8 +277,7 @@ rs232_setup(struct e1inp_line *line, const char *serial_port, unsigned int delay
 	return 0;
 }
 
-static int rs232_line_update(struct e1inp_line *line,
-			     enum e1inp_line_role role, const char *addr);
+static int rs232_line_update(struct e1inp_line *line);
 
 static struct e1inp_driver rs232_driver = {
 	.name		= "rs232",
@@ -286,13 +285,13 @@ static struct e1inp_driver rs232_driver = {
 	.line_update	= rs232_line_update,
 };
 
-static int rs232_line_update(struct e1inp_line *line,
-			     enum e1inp_line_role role, const char *addr)
+static int rs232_line_update(struct e1inp_line *line)
 {
 	if (line->driver != &rs232_driver)
 		return -EINVAL;
 
-	return rs232_setup(line, addr, 0);
+	return rs232_setup(line, line->ops->cfg.rs232.port,
+				 line->ops->cfg.rs232.delay);
 }
 
 int e1inp_rs232_init(void)