From 5d951fb458f847e5485b5251597fbf326000bb3b Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 2 Jan 2009 13:45:19 +0000 Subject: tty: Pull the dtr raise into tty port This moves another per device special out of what should be shared open wait paths into private methods Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/synclink.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'drivers/char/synclink.c') diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index fb2e6b5e0ef..ac9f21e18c3 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -3298,6 +3298,18 @@ static int carrier_raised(struct tty_port *port) return (info->serial_signals & SerialSignal_DCD) ? 1 : 0; } +static void raise_dtr_rts(struct tty_port *port) +{ + struct mgsl_struct *info = container_of(port, struct mgsl_struct, port); + unsigned long flags; + + spin_lock_irqsave(&info->irq_spinlock,flags); + info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; + usc_set_serial_signals(info); + spin_unlock_irqrestore(&info->irq_spinlock,flags); +} + + /* block_til_ready() * * Block the current process until the specified port @@ -3358,12 +3370,8 @@ 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->irq_spinlock,flags); - info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR; - usc_set_serial_signals(info); - spin_unlock_irqrestore(&info->irq_spinlock,flags); - } + if (tty->termios->c_cflag & CBAUD) + tty_port_raise_dtr_rts(port); set_current_state(TASK_INTERRUPTIBLE); @@ -4321,6 +4329,7 @@ static void mgsl_add_device( struct mgsl_struct *info ) static const struct tty_port_operations mgsl_port_ops = { .carrier_raised = carrier_raised, + .raise_dtr_rts = raise_dtr_rts, }; -- cgit v1.2.3