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Commit dcbf1280 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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epca: Restore driver 



Convert the driver to use the added hardware break support

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9e98966c

drivers/char/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -167,7 +167,7 @@ config CYZ_INTR 


config DIGIEPCA

	tristate "Digiboard Intelligent Async Support"

	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI) && BROKEN

	depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)

	---help---

	  This is a driver for Digi International's Xx, Xeve, and Xem series

	  of cards which provide multiple serial ports. You would need

drivers/char/epca.c

+9 −29
Original line number Diff line number Diff line
@@ -184,7 +184,7 @@ static void pc_stop(struct tty_struct *); 
static void pc_start(struct tty_struct *);

static void pc_throttle(struct tty_struct *tty);

static void pc_unthrottle(struct tty_struct *tty);

static void digi_send_break(struct channel *ch, int msec);

static int pc_send_break(struct tty_struct *tty, int msec);

static void setup_empty_event(struct tty_struct *tty, struct channel *ch);

static void epca_setup(char *, int *);
@@ -1040,6 +1040,7 @@ static const struct tty_operations pc_ops = { 
	.throttle = pc_throttle,

	.unthrottle = pc_unthrottle,

	.hangup = pc_hangup,

	.break_ctl = pc_send_break

};



static int info_open(struct tty_struct *tty, struct file *filp)
@@ -1132,7 +1133,7 @@ static int __init pc_init(void) 
	pc_driver->init_termios.c_lflag = 0;

	pc_driver->init_termios.c_ispeed = 9600;

	pc_driver->init_termios.c_ospeed = 9600;

	pc_driver->flags = TTY_DRIVER_REAL_RAW;

	pc_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK;

	tty_set_operations(pc_driver, &pc_ops);



	pc_info->owner = THIS_MODULE;
@@ -2177,7 +2178,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file, 
					unsigned int cmd, unsigned long arg)

{

	digiflow_t dflow;

	int retval;

	unsigned long flags;

	unsigned int mflag, mstat;

	unsigned char startc, stopc;
@@ -2190,31 +2190,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file, 
	else

		return -EINVAL;

	switch (cmd) {

	case TCSBRK:	/* SVID version: non-zero arg --> no break */

		retval = tty_check_change(tty);

		if (retval)

			return retval;

		/* Setup an event to indicate when the transmit

		   buffer empties */

		spin_lock_irqsave(&epca_lock, flags);

		setup_empty_event(tty, ch);

		spin_unlock_irqrestore(&epca_lock, flags);

		tty_wait_until_sent(tty, 0);

		if (!arg)

			digi_send_break(ch, HZ / 4);    /* 1/4 second */

		return 0;

	case TCSBRKP:	/* support for POSIX tcsendbreak() */

		retval = tty_check_change(tty);

		if (retval)

			return retval;

		/* Setup an event to indicate when the transmit buffer

		   empties */

		spin_lock_irqsave(&epca_lock, flags);

		setup_empty_event(tty, ch);

		spin_unlock_irqrestore(&epca_lock, flags);

		tty_wait_until_sent(tty, 0);

		digi_send_break(ch, arg ? arg*(HZ/10) : HZ/4);

		return 0;

	case TIOCMODG:

		mflag = pc_tiocmget(tty, file);

		if (put_user(mflag, (unsigned long __user *)argp))
@@ -2500,10 +2475,14 @@ static void pc_unthrottle(struct tty_struct *tty) 
	}

}



static void digi_send_break(struct channel *ch, int msec)

static int pc_send_break(struct tty_struct *tty, int msec)

{

	struct channel *ch = (struct channel *) tty->driver_data;

	unsigned long flags;



	if (msec == -1)

		return -EOPNOTSUPP;



	spin_lock_irqsave(&epca_lock, flags);

	globalwinon(ch);

	/*
@@ -2516,6 +2495,7 @@ static void digi_send_break(struct channel *ch, int msec) 
	fepcmd(ch, SENDBREAK, msec, 0, 10, 0);

	memoff(ch);

	spin_unlock_irqrestore(&epca_lock, flags);

	return 0;

}



/* Caller MUST hold the lock */