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authorAlan Cox <alan@redhat.com>2008-07-16 21:53:50 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 17:12:35 -0700
commitdf4f4dd429870f435f8d5d9d561db029a29f063b (patch)
tree5e33106f5e5fc4c530170087d3151c13659fad1f /include
parent6f67048cd010afe19d79d821f16055d9c704c6f0 (diff)
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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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/serial_core.h26
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);