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Date: Mon, 2 Apr 2012 13:53:54 +0200
From: Jiri Slaby <jslaby@...e.cz>
To: gregkh@...uxfoundation.org
Cc: alan@...ux.intel.com, linux-kernel@...r.kernel.org,
jirislaby@...il.com, Karsten Keil <isdn@...ux-pingi.de>
Subject: [PATCH 10/69] TTY: isdn, add tty_port
And use tty_port->flags now. Other members will follow.
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Cc: Karsten Keil <isdn@...ux-pingi.de>
---
drivers/isdn/i4l/isdn_tty.c | 60 ++++++++++++++++++++++---------------------
include/linux/isdn.h | 3 ++-
2 files changed, 33 insertions(+), 30 deletions(-)
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 74b0518..8ba526d 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1046,20 +1046,20 @@ isdn_tty_change_speed(modem_info *info)
/* CTS flow control flag and modem status interrupts */
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
} else
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
+ info->port.flags &= ~ASYNC_CHECK_CD;
else {
- info->flags |= ASYNC_CHECK_CD;
+ info->port.flags |= ASYNC_CHECK_CD;
}
}
static int
isdn_tty_startup(modem_info *info)
{
- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
return 0;
isdn_lock_drivers();
#ifdef ISDN_DEBUG_MODEM_OPEN
@@ -1076,7 +1076,7 @@ isdn_tty_startup(modem_info *info)
*/
isdn_tty_change_speed(info);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
info->msr |= (UART_MSR_DSR | UART_MSR_CTS);
info->send_outstanding = 0;
return 0;
@@ -1089,7 +1089,7 @@ isdn_tty_startup(modem_info *info)
static void
isdn_tty_shutdown(modem_info *info)
{
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
#ifdef ISDN_DEBUG_MODEM_OPEN
printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line);
@@ -1109,7 +1109,7 @@ isdn_tty_shutdown(modem_info *info)
if (info->tty)
set_bit(TTY_IO_ERROR, &info->tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ info->port.flags &= ~ASYNC_INITIALIZED;
}
/* isdn_tty_write() is the main send-routine. It is called from the upper
@@ -1496,11 +1496,11 @@ isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info *
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
+ (info->port.flags & ASYNC_CLOSING)) {
+ if (info->port.flags & ASYNC_CLOSING)
interruptible_sleep_on(&info->close_wait);
#ifdef MODEM_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -1514,7 +1514,7 @@ isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info *
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
if (tty->termios->c_cflag & CLOCAL)
@@ -1538,9 +1538,9 @@ isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info *
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
+ !(info->port.flags & ASYNC_INITIALIZED)) {
#ifdef MODEM_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
@@ -1549,7 +1549,7 @@ isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info *
#endif
break;
}
- if (!(info->flags & ASYNC_CLOSING) &&
+ if (!(info->port.flags & ASYNC_CLOSING) &&
(do_clocal || (info->msr & UART_MSR_DCD))) {
break;
}
@@ -1574,7 +1574,7 @@ isdn_tty_block_til_ready(struct tty_struct *tty, struct file *filp, modem_info *
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -1600,6 +1600,7 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
info->count++;
tty->driver_data = info;
info->tty = tty;
+ tty->port = &info->port;
/*
* Start up serial port
*/
@@ -1664,7 +1665,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
#endif
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
tty->closing = 1;
/*
@@ -1673,7 +1674,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
* interrupt driver to stop checking the data ready bit in the
* line status register.
*/
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
tty_wait_until_sent_from_close(tty, 3000); /* 30 seconds timeout */
/*
* Before we drop DTR, make sure the UART transmitter
@@ -1698,7 +1699,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
msleep_interruptible(500);
wake_up_interruptible(&info->open_wait);
}
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
#ifdef ISDN_DEBUG_MODEM_OPEN
printk(KERN_DEBUG "isdn_tty_close normal exit\n");
@@ -1717,7 +1718,7 @@ isdn_tty_hangup(struct tty_struct *tty)
return;
isdn_tty_shutdown(info);
info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
info->tty = NULL;
wake_up_interruptible(&info->open_wait);
}
@@ -1881,6 +1882,7 @@ isdn_tty_modem_init(void)
goto err_unregister;
}
#endif
+ tty_port_init(&info->port);
spin_lock_init(&info->readlock);
sprintf(info->last_cause, "0000");
sprintf(info->last_num, "none");
@@ -2055,12 +2057,12 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
#ifdef ISDN_DEBUG_MODEM_ICALL
printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret);
printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx,
- info->flags, info->isdn_driver, info->isdn_channel,
- dev->usage[idx]);
+ info->port.flags, info->isdn_driver,
+ info->isdn_channel, dev->usage[idx]);
#endif
if (
#ifndef FIX_FILE_TRANSFER
- (info->flags & ASYNC_NORMAL_ACTIVE) &&
+ (info->port.flags & ASYNC_NORMAL_ACTIVE) &&
#endif
(info->isdn_driver == -1) &&
(info->isdn_channel == -1) &&
@@ -2099,7 +2101,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
return (wret == 2) ? 3 : 0;
}
-#define TTY_IS_ACTIVE(info) (info->flags & ASYNC_NORMAL_ACTIVE)
+#define TTY_IS_ACTIVE(info) (info->port.flags & ASYNC_NORMAL_ACTIVE)
int
isdn_tty_stat_callback(int i, isdn_ctrl *c)
@@ -2318,7 +2320,7 @@ isdn_tty_at_cout(char *msg, modem_info *info)
spin_lock_irqsave(&info->readlock, flags);
tty = info->tty;
- if ((info->flags & ASYNC_CLOSING) || (!tty)) {
+ if ((info->port.flags & ASYNC_CLOSING) || (!tty)) {
spin_unlock_irqrestore(&info->readlock, flags);
return;
}
@@ -2468,13 +2470,13 @@ isdn_tty_modem_result(int code, modem_info *info)
case RESULT_NO_CARRIER:
#ifdef ISDN_DEBUG_MODEM_HUP
printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n",
- (info->flags & ASYNC_CLOSING),
+ (info->port.flags & ASYNC_CLOSING),
(!info->tty));
#endif
m->mdmreg[REG_RINGCNT] = 0;
del_timer(&info->nc_timer);
info->ncarrier = 0;
- if ((info->flags & ASYNC_CLOSING) || (!info->tty))
+ if ((info->port.flags & ASYNC_CLOSING) || (!info->tty))
return;
#ifdef CONFIG_ISDN_AUDIO
@@ -2607,10 +2609,10 @@ isdn_tty_modem_result(int code, modem_info *info)
}
}
if (code == RESULT_NO_CARRIER) {
- if ((info->flags & ASYNC_CLOSING) || (!info->tty))
+ if ((info->port.flags & ASYNC_CLOSING) || (!info->tty))
return;
- if (info->flags & ASYNC_CHECK_CD)
+ if (info->port.flags & ASYNC_CHECK_CD)
tty_hangup(info->tty);
}
}
diff --git a/include/linux/isdn.h b/include/linux/isdn.h
index 63af320..bb71041 100644
--- a/include/linux/isdn.h
+++ b/include/linux/isdn.h
@@ -15,6 +15,7 @@
#define __ISDN_H__
#include <linux/ioctl.h>
+#include <linux/tty.h>
#define ISDN_MAX_DRIVERS 32
#define ISDN_MAX_CHANNELS 64
@@ -435,7 +436,7 @@ typedef struct atemu {
/* Private data (similar to async_struct in <linux/serial.h>) */
typedef struct modem_info {
int magic;
- int flags; /* defined in tty.h */
+ struct tty_port port;
int x_char; /* xon/xoff character */
int mcr; /* Modem control register */
int msr; /* Modem status register */
--
1.7.9.2
--
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