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tty: Pull the dtr raise into tty port

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This moves another per device special out of what should be shared open
wait paths into private methods

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
2009-01-02 13:45:19 +00:00
committed by Linus Torvalds
parent d0c9873add
commit 5d951fb458
7 changed files with 79 additions and 25 deletions
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21
drivers/char/synclink_gt.c
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@ -3143,6 +3143,18 @@ static int carrier_raised(struct tty_port *port)
return (info->signals & SerialSignal_DCD) ? 1 : 0;
}
static void raise_dtr_rts(struct tty_port *port)
{
unsigned long flags;
struct slgt_info *info = container_of(port, struct slgt_info, port);
spin_lock_irqsave(&info->lock,flags);
info->signals |= SerialSignal_RTS + SerialSignal_DTR;
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
/*
* block current process until the device is ready to open
*/
@ -3187,12 +3199,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
port->blocked_open++;
while (1) {
if ((tty->termios->c_cflag & CBAUD)) {
spin_lock_irqsave(&info->lock,flags);
info->signals |= SerialSignal_RTS + SerialSignal_DTR;
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
if ((tty->termios->c_cflag & CBAUD))
tty_port_raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
@ -3455,6 +3463,7 @@ static void add_device(struct slgt_info *info)
static const struct tty_port_operations slgt_port_ops = {
.carrier_raised = carrier_raised,
.raise_dtr_rts = raise_dtr_rts,
};
/*