tty: Implement a drain delay in the tty port

[pandora-kernel.git] / include / linux / tty.h

diff --git a/include/linux/tty.h b/include/linux/tty.h
index fc39db9..bed5a3d 100644 (file)
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -185,7 +185,7 @@ struct tty_port;
 struct tty_port_operations {
        /* Return 1 if the carrier is raised */
        int (*carrier_raised)(struct tty_port *port);
-       void (*raise_dtr_rts)(struct tty_port *port);
+       void (*dtr_rts)(struct tty_port *port, int raise);
 };
        
 struct tty_port {
@@ -201,6 +201,9 @@ struct tty_port {
        unsigned char           *xmit_buf;      /* Optional buffer */
        int                     close_delay;    /* Close port delay */
        int                     closing_wait;   /* Delay for output */
+       int                     drain_delay;    /* Set to zero if no pure time
+                                                  based drain is needed else
+                                                  set to size of fifo */
 };
 
 /*
@@ -438,6 +441,7 @@ extern struct tty_struct *tty_port_tty_get(struct tty_port *port);
 extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty);
 extern int tty_port_carrier_raised(struct tty_port *port);
 extern void tty_port_raise_dtr_rts(struct tty_port *port);
+extern void tty_port_lower_dtr_rts(struct tty_port *port);
 extern void tty_port_hangup(struct tty_port *port);
 extern int tty_port_block_til_ready(struct tty_port *port,
                                struct tty_struct *tty, struct file *filp);