C++ (Cpp) ctc_tty_block_til_ready Examples

Example #1

File: ctctty.c Project: GunioRobot/MI424WR_GEN2_Rev_E-F

/*
 * This routine is called whenever a serial port is opened.  It
 * enables interrupts for a serial port, linking in its async structure into
 * the IRQ chain.   It also performs the serial-specific
 * initialization for the tty structure.
 */
static int
ctc_tty_open(struct tty_struct *tty, struct file *filp)
{
	ctc_tty_info *info;
	unsigned long saveflags;
	int retval,
	 line;

	line = MINOR(tty->device) - tty->driver.minor_start;
	if (line < 0 || line > CTC_TTY_MAX_DEVICES)
		return -ENODEV;
	info = &driver->info[line];
	if (ctc_tty_paranoia_check(info, tty->device, "ctc_tty_open"))
		return -ENODEV;
	if (!info->netdev)
		return -ENODEV;
#ifdef CTC_DEBUG_MODEM_OPEN
	printk(KERN_DEBUG "ctc_tty_open %s%d, count = %d\n", tty->driver.name,
	       info->line, info->count);
#endif
	spin_lock_irqsave(&ctc_tty_lock, saveflags);
	info->count++;
	tty->driver_data = info;
	info->tty = tty;
	spin_unlock_irqrestore(&ctc_tty_lock, saveflags);
	/*
	 * Start up serial port
	 */
	retval = ctc_tty_startup(info);
	if (retval) {
#ifdef CTC_DEBUG_MODEM_OPEN
		printk(KERN_DEBUG "ctc_tty_open return after startup\n");
#endif
		return retval;
	}
	retval = ctc_tty_block_til_ready(tty, filp, info);
	if (retval) {
#ifdef CTC_DEBUG_MODEM_OPEN
		printk(KERN_DEBUG "ctc_tty_open return after ctc_tty_block_til_ready \n");
#endif
		return retval;
	}
	if ((info->count == 1) && (info->flags & CTC_ASYNC_SPLIT_TERMIOS)) {
		*tty->termios = info->normal_termios;
		ctc_tty_change_speed(info);
	}
#ifdef CTC_DEBUG_MODEM_OPEN
	printk(KERN_DEBUG "ctc_tty_open %s%d successful...\n", CTC_TTY_NAME, info->line);
#endif
	return 0;
}

Example #2

File: ctctty.c Project: FelipeFernandes1988/Alice-1121-Modem

/*
 * This routine is called whenever a serial port is opened.  It
 * enables interrupts for a serial port, linking in its async structure into
 * the IRQ chain.   It also performs the serial-specific
 * initialization for the tty structure.
 */
static int
ctc_tty_open(struct tty_struct *tty, struct file *filp)
{
	ctc_tty_info *info;
	unsigned long saveflags;
	int retval,
	 line;

	DBF_TEXT(trace, 3, __FUNCTION__);
	line = tty->index;
	if (line < 0 || line > CTC_TTY_MAX_DEVICES)
		return -ENODEV;
	info = &driver->info[line];
	if (ctc_tty_paranoia_check(info, tty->name, "ctc_tty_open"))
		return -ENODEV;
	if (!info->netdev)
		return -ENODEV;
#ifdef CTC_DEBUG_MODEM_OPEN
	printk(KERN_DEBUG "ctc_tty_open %s, count = %d\n", tty->name,
	       info->count);
#endif
	spin_lock_irqsave(&ctc_tty_lock, saveflags);
	info->count++;
	tty->driver_data = info;
	info->tty = tty;
	spin_unlock_irqrestore(&ctc_tty_lock, saveflags);
	/*
	 * Start up serial port
	 */
	retval = ctc_tty_startup(info);
	if (retval) {
#ifdef CTC_DEBUG_MODEM_OPEN
		printk(KERN_DEBUG "ctc_tty_open return after startup\n");
#endif
		return retval;
	}
	retval = ctc_tty_block_til_ready(tty, filp, info);
	if (retval) {
#ifdef CTC_DEBUG_MODEM_OPEN
		printk(KERN_DEBUG "ctc_tty_open return after ctc_tty_block_til_ready \n");
#endif
		return retval;
	}
#ifdef CTC_DEBUG_MODEM_OPEN
	printk(KERN_DEBUG "ctc_tty_open %s successful...\n", tty->name);
#endif
	return 0;
}