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path: root/drivers/tty/amiserial.c
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Diffstat (limited to 'drivers/tty/amiserial.c')
-rw-r--r--drivers/tty/amiserial.c73
1 files changed, 28 insertions, 45 deletions
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index b2d760055..208f57349 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -32,7 +32,6 @@
#include <linux/delay.h>
#undef SERIAL_PARANOIA_CHECK
-#define SERIAL_DO_RESTART
/* Set of debugging defines */
@@ -399,7 +398,7 @@ static void check_modem_status(struct serial_state *info)
wake_up_interruptible(&port->delta_msr_wait);
}
- if ((port->flags & ASYNC_CHECK_CD) && (dstatus & SER_DCD)) {
+ if (tty_port_check_carrier(port) && (dstatus & SER_DCD)) {
#if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
printk("ttyS%d CD now %s...", info->line,
(!(status & SER_DCD)) ? "on" : "off");
@@ -526,7 +525,7 @@ static int startup(struct tty_struct *tty, struct serial_state *info)
local_irq_save(flags);
- if (port->flags & ASYNC_INITIALIZED) {
+ if (tty_port_initialized(port)) {
free_page(page);
goto errout;
}
@@ -587,7 +586,7 @@ static int startup(struct tty_struct *tty, struct serial_state *info)
*/
change_speed(tty, info, NULL);
- port->flags |= ASYNC_INITIALIZED;
+ tty_port_set_initialized(port, 1);
local_irq_restore(flags);
return 0;
@@ -605,7 +604,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info)
unsigned long flags;
struct serial_state *state;
- if (!(info->tport.flags & ASYNC_INITIALIZED))
+ if (!tty_port_initialized(&info->tport))
return;
state = info;
@@ -640,13 +639,13 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info)
custom.adkcon = AC_UARTBRK;
mb();
- if (tty->termios.c_cflag & HUPCL)
+ if (C_HUPCL(tty))
info->MCR &= ~(SER_DTR|SER_RTS);
rtsdtr_ctrl(info->MCR);
set_bit(TTY_IO_ERROR, &tty->flags);
- info->tport.flags &= ~ASYNC_INITIALIZED;
+ tty_port_set_initialized(&info->tport, 0);
local_irq_restore(flags);
}
@@ -728,17 +727,12 @@ static void change_speed(struct tty_struct *tty, struct serial_state *info,
info->IER &= ~UART_IER_MSI;
if (port->flags & ASYNC_HARDPPS_CD)
info->IER |= UART_IER_MSI;
- if (cflag & CRTSCTS) {
- port->flags |= ASYNC_CTS_FLOW;
+ tty_port_set_cts_flow(port, cflag & CRTSCTS);
+ if (cflag & CRTSCTS)
info->IER |= UART_IER_MSI;
- } else
- port->flags &= ~ASYNC_CTS_FLOW;
- if (cflag & CLOCAL)
- port->flags &= ~ASYNC_CHECK_CD;
- else {
- port->flags |= ASYNC_CHECK_CD;
+ tty_port_set_check_carrier(port, ~cflag & CLOCAL);
+ if (~cflag & CLOCAL)
info->IER |= UART_IER_MSI;
- }
/* TBD:
* Does clearing IER_MSI imply that we should disable the VBL interrupt ?
*/
@@ -966,10 +960,7 @@ static void rs_throttle(struct tty_struct * tty)
struct serial_state *info = tty->driver_data;
unsigned long flags;
#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
+ printk("throttle %s ....\n", tty_name(tty));
#endif
if (serial_paranoia_check(info, tty->name, "rs_throttle"))
@@ -978,7 +969,7 @@ static void rs_throttle(struct tty_struct * tty)
if (I_IXOFF(tty))
rs_send_xchar(tty, STOP_CHAR(tty));
- if (tty->termios.c_cflag & CRTSCTS)
+ if (C_CRTSCTS(tty))
info->MCR &= ~SER_RTS;
local_irq_save(flags);
@@ -991,10 +982,7 @@ static void rs_unthrottle(struct tty_struct * tty)
struct serial_state *info = tty->driver_data;
unsigned long flags;
#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("unthrottle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
+ printk("unthrottle %s ....\n", tty_name(tty));
#endif
if (serial_paranoia_check(info, tty->name, "rs_unthrottle"))
@@ -1006,7 +994,7 @@ static void rs_unthrottle(struct tty_struct * tty)
else
rs_send_xchar(tty, START_CHAR(tty));
}
- if (tty->termios.c_cflag & CRTSCTS)
+ if (C_CRTSCTS(tty))
info->MCR |= SER_RTS;
local_irq_save(flags);
rtsdtr_ctrl(info->MCR);
@@ -1096,7 +1084,7 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
check_and_exit:
- if (port->flags & ASYNC_INITIALIZED) {
+ if (tty_port_initialized(port)) {
if (change_spd) {
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
tty->alt_speed = 57600;
@@ -1150,7 +1138,7 @@ static int rs_tiocmget(struct tty_struct *tty)
if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
+ if (tty_io_error(tty))
return -EIO;
control = info->MCR;
@@ -1172,7 +1160,7 @@ static int rs_tiocmset(struct tty_struct *tty, unsigned int set,
if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
+ if (tty_io_error(tty))
return -EIO;
local_irq_save(flags);
@@ -1257,7 +1245,7 @@ static int rs_ioctl(struct tty_struct *tty,
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
(cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
(cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
+ if (tty_io_error(tty))
return -EIO;
}
@@ -1339,8 +1327,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
change_speed(tty, info, old_termios);
/* Handle transition to B0 status */
- if ((old_termios->c_cflag & CBAUD) &&
- !(cflag & CBAUD)) {
+ if ((old_termios->c_cflag & CBAUD) && !(cflag & CBAUD)) {
info->MCR &= ~(SER_DTR|SER_RTS);
local_irq_save(flags);
rtsdtr_ctrl(info->MCR);
@@ -1348,21 +1335,17 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
}
/* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- (cflag & CBAUD)) {
+ if (!(old_termios->c_cflag & CBAUD) && (cflag & CBAUD)) {
info->MCR |= SER_DTR;
- if (!(tty->termios.c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
+ if (!C_CRTSCTS(tty) || !tty_throttled(tty))
info->MCR |= SER_RTS;
- }
local_irq_save(flags);
rtsdtr_ctrl(info->MCR);
local_irq_restore(flags);
}
/* Handle turning off CRTSCTS */
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios.c_cflag & CRTSCTS)) {
+ if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {
tty->hw_stopped = 0;
rs_start(tty);
}
@@ -1374,8 +1357,7 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
* XXX It's not clear whether the current behavior is correct
* or not. Hence, this may change.....
*/
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios.c_cflag & CLOCAL))
+ if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))
wake_up_interruptible(&info->open_wait);
#endif
}
@@ -1408,7 +1390,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
* line status register.
*/
state->read_status_mask &= ~UART_LSR_DR;
- if (port->flags & ASYNC_INITIALIZED) {
+ if (tty_port_initialized(port)) {
/* disable receive interrupts */
custom.intena = IF_RBF;
mb();
@@ -1508,7 +1490,7 @@ static void rs_hangup(struct tty_struct *tty)
rs_flush_buffer(tty);
shutdown(tty, info);
info->tport.count = 0;
- info->tport.flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_port_set_active(&info->tport, 0);
info->tport.tty = NULL;
wake_up_interruptible(&info->tport.open_wait);
}
@@ -1556,7 +1538,7 @@ static inline void line_info(struct seq_file *m, int line,
local_irq_save(flags);
status = ciab.pra;
- control = (state->tport.flags & ASYNC_INITIALIZED) ? state->MCR : status;
+ control = tty_port_initialized(&state->tport) ? state->MCR : status;
local_irq_restore(flags);
stat_buf[0] = 0;
@@ -1786,7 +1768,8 @@ static int __exit amiga_serial_remove(struct platform_device *pdev)
struct serial_state *state = platform_get_drvdata(pdev);
/* printk("Unloading %s: version %s\n", serial_name, serial_version); */
- if ((error = tty_unregister_driver(serial_driver)))
+ error = tty_unregister_driver(serial_driver);
+ if (error)
printk("SERIAL: failed to unregister serial driver (%d)\n",
error);
put_tty_driver(serial_driver);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-10-20 17:26:27 +0000