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path: root/drivers/tty/synclink.c
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Diffstat (limited to 'drivers/tty/synclink.c')
-rw-r--r--drivers/tty/synclink.c86
1 files changed, 47 insertions, 39 deletions
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 593d40ad0a6b..70e3a525bc82 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -1359,7 +1359,7 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
}
}
- if ( (info->port.flags & ASYNC_CTS_FLOW) &&
+ if (tty_port_cts_enabled(&info->port) &&
(status & MISCSTATUS_CTS_LATCHED) ) {
if (info->port.tty->hw_stopped) {
if (status & MISCSTATUS_CTS) {
@@ -1840,22 +1840,22 @@ static void shutdown(struct mgsl_struct * info)
usc_DisableInterrupts(info,RECEIVE_DATA + RECEIVE_STATUS +
TRANSMIT_DATA + TRANSMIT_STATUS + IO_PIN + MISC );
usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);
-
+
/* Disable DMAEN (Port 7, Bit 14) */
/* This disconnects the DMA request signal from the ISA bus */
/* on the ISA adapter. This has no effect for the PCI adapter */
usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));
-
+
/* Disable INTEN (Port 6, Bit12) */
/* This disconnects the IRQ request signal to the ISA bus */
/* on the ISA adapter. This has no effect for the PCI adapter */
usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
-
- if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
+
+ if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
usc_set_serial_signals(info);
}
-
+
spin_unlock_irqrestore(&info->irq_spinlock,flags);
mgsl_release_resources(info);
@@ -1895,7 +1895,7 @@ static void mgsl_program_hw(struct mgsl_struct *info)
usc_EnableInterrupts(info, IO_PIN);
usc_get_serial_signals(info);
- if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
+ if (info->netcount || info->port.tty->termios.c_cflag & CREAD)
usc_start_receiver(info);
spin_unlock_irqrestore(&info->irq_spinlock,flags);
@@ -1908,14 +1908,14 @@ static void mgsl_change_params(struct mgsl_struct *info)
unsigned cflag;
int bits_per_char;
- if (!info->port.tty || !info->port.tty->termios)
+ if (!info->port.tty)
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgsl_change_params(%s)\n",
__FILE__,__LINE__, info->device_name );
- cflag = info->port.tty->termios->c_cflag;
+ cflag = info->port.tty->termios.c_cflag;
/* if B0 rate (hangup) specified then negate DTR and RTS */
/* otherwise assert DTR and RTS */
@@ -2367,8 +2367,8 @@ static void mgsl_throttle(struct tty_struct * tty)
if (I_IXOFF(tty))
mgsl_send_xchar(tty, STOP_CHAR(tty));
-
- if (tty->termios->c_cflag & CRTSCTS) {
+
+ if (tty->termios.c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->irq_spinlock,flags);
info->serial_signals &= ~SerialSignal_RTS;
usc_set_serial_signals(info);
@@ -2401,8 +2401,8 @@ static void mgsl_unthrottle(struct tty_struct * tty)
else
mgsl_send_xchar(tty, START_CHAR(tty));
}
-
- if (tty->termios->c_cflag & CRTSCTS) {
+
+ if (tty->termios.c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->irq_spinlock,flags);
info->serial_signals |= SerialSignal_RTS;
usc_set_serial_signals(info);
@@ -3045,7 +3045,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
/* Handle transition to B0 status */
if (old_termios->c_cflag & CBAUD &&
- !(tty->termios->c_cflag & CBAUD)) {
+ !(tty->termios.c_cflag & CBAUD)) {
info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
spin_lock_irqsave(&info->irq_spinlock,flags);
usc_set_serial_signals(info);
@@ -3054,9 +3054,9 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
/* Handle transition away from B0 status */
if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios->c_cflag & CBAUD) {
+ tty->termios.c_cflag & CBAUD) {
info->serial_signals |= SerialSignal_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
+ if (!(tty->termios.c_cflag & CRTSCTS) ||
!test_bit(TTY_THROTTLED, &tty->flags)) {
info->serial_signals |= SerialSignal_RTS;
}
@@ -3067,7 +3067,7 @@ static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termio
/* Handle turning off CRTSCTS */
if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios->c_cflag & CRTSCTS)) {
+ !(tty->termios.c_cflag & CRTSCTS)) {
tty->hw_stopped = 0;
mgsl_start(tty);
}
@@ -3287,7 +3287,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
return 0;
}
- if (tty->termios->c_cflag & CLOCAL)
+ if (tty->termios.c_cflag & CLOCAL)
do_clocal = true;
/* Wait for carrier detect and the line to become
@@ -3313,7 +3313,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
port->blocked_open++;
while (1) {
- if (tty->termios->c_cflag & CBAUD)
+ if (tty->termios.c_cflag & CBAUD)
tty_port_raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
@@ -3338,9 +3338,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
printk("%s(%d):block_til_ready blocking on %s count=%d\n",
__FILE__,__LINE__, tty->driver->name, port->count );
- tty_unlock();
+ tty_unlock(tty);
schedule();
- tty_lock();
+ tty_lock(tty);
}
set_current_state(TASK_RUNNING);
@@ -3362,6 +3362,29 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
} /* end of block_til_ready() */
+static int mgsl_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+ struct mgsl_struct *info;
+ int line = tty->index;
+
+ /* verify range of specified line number */
+ if (line >= mgsl_device_count) {
+ printk("%s(%d):mgsl_open with invalid line #%d.\n",
+ __FILE__, __LINE__, line);
+ return -ENODEV;
+ }
+
+ /* find the info structure for the specified line */
+ info = mgsl_device_list;
+ while (info && info->line != line)
+ info = info->next_device;
+ if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
+ return -ENODEV;
+ tty->driver_data = info;
+
+ return tty_port_install(&info->port, driver, tty);
+}
+
/* mgsl_open()
*
* Called when a port is opened. Init and enable port.
@@ -3374,26 +3397,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
*/
static int mgsl_open(struct tty_struct *tty, struct file * filp)
{
- struct mgsl_struct *info;
- int retval, line;
+ struct mgsl_struct *info = tty->driver_data;
unsigned long flags;
+ int retval;
- /* verify range of specified line number */
- line = tty->index;
- if (line >= mgsl_device_count) {
- printk("%s(%d):mgsl_open with invalid line #%d.\n",
- __FILE__,__LINE__,line);
- return -ENODEV;
- }
-
- /* find the info structure for the specified line */
- info = mgsl_device_list;
- while(info && info->line != line)
- info = info->next_device;
- if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
- return -ENODEV;
-
- tty->driver_data = info;
info->port.tty = tty;
if (debug_level >= DEBUG_LEVEL_INFO)
@@ -4297,6 +4304,7 @@ static struct mgsl_struct* mgsl_allocate_device(void)
} /* end of mgsl_allocate_device()*/
static const struct tty_operations mgsl_ops = {
+ .install = mgsl_install,
.open = mgsl_open,
.close = mgsl_close,
.write = mgsl_write,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.