serial: use tty_port

Switch the serial_core based drivers to use the new tty_port structure.
We can't quite use all of it yet because of the dynamically allocated
extras in the serial_core layer.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 12 insertions, 14 deletions

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 1d2faa6592a..f3a1c0e4502 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -344,13 +344,15 @@ typedef unsigned int __bitwise__ uif_t;
  * stuff here.
  */
 struct uart_info {
-	struct tty_struct	*tty;
+	struct tty_port		port;
 	struct circ_buf		xmit;
 	uif_t			flags;
 
 /*
  * Definitions for info->flags.  These are _private_ to serial_core, and
  * are specific to this structure.  They may be queried by low level drivers.
+ *
+ * FIXME: use the ASY_ definitions
  */
 #define UIF_CHECK_CD		((__force uif_t) (1 << 25))
 #define UIF_CTS_FLOW		((__force uif_t) (1 << 26))
@@ -358,11 +360,7 @@ struct uart_info {
 #define UIF_INITIALIZED		((__force uif_t) (1 << 31))
 #define UIF_SUSPENDED		((__force uif_t) (1 << 30))
 
-	int			blocked_open;
-
 	struct tasklet_struct	tlet;
-
-	wait_queue_head_t	open_wait;
 	wait_queue_head_t	delta_msr_wait;
 };
 
@@ -439,8 +437,8 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
 #define uart_circ_chars_free(circ)	\
 	(CIRC_SPACE((circ)->head, (circ)->tail, UART_XMIT_SIZE))
 
-#define uart_tx_stopped(port)		\
-	((port)->info->tty->stopped || (port)->info->tty->hw_stopped)
+#define uart_tx_stopped(portp)		\
+	((portp)->info->port.tty->stopped || (portp)->info->port.tty->hw_stopped)
 
 /*
  * The following are helper functions for the low level drivers.
@@ -451,7 +449,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 #ifdef SUPPORT_SYSRQ
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
-			handle_sysrq(ch, port->info ? port->info->tty : NULL);
+			handle_sysrq(ch, port->info ? port->info->port.tty : NULL);
 			port->sysrq = 0;
 			return 1;
 		}
@@ -480,7 +478,7 @@ static inline int uart_handle_break(struct uart_port *port)
 	}
 #endif
 	if (port->flags & UPF_SAK)
-		do_SAK(info->tty);
+		do_SAK(info->port.tty);
 	return 0;
 }
 
@@ -503,9 +501,9 @@ uart_handle_dcd_change(struct uart_port *port, unsigned int status)
 
 	if (info->flags & UIF_CHECK_CD) {
 		if (status)
-			wake_up_interruptible(&info->open_wait);
-		else if (info->tty)
-			tty_hangup(info->tty);
+			wake_up_interruptible(&info->port.open_wait);
+		else if (info->port.tty)
+			tty_hangup(info->port.tty);
 	}
 }
 
@@ -518,7 +516,7 @@ static inline void
 uart_handle_cts_change(struct uart_port *port, unsigned int status)
 {
 	struct uart_info *info = port->info;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 
 	port->icount.cts++;
 
@@ -544,7 +542,7 @@ static inline void
 uart_insert_char(struct uart_port *port, unsigned int status,
 		 unsigned int overrun, unsigned int ch, unsigned int flag)
 {
-	struct tty_struct *tty = port->info->tty;
+	struct tty_struct *tty = port->info->port.tty;
 
 	if ((status & port->ignore_status_mask & ~overrun) == 0)
 		tty_insert_flip_char(tty, ch, flag);