Release 4.7 drivers/isdn/gigaset/interface.c
  
  
/*
 * interface to user space for the gigaset driver
 *
 * Copyright (c) 2004 by Hansjoerg Lipp <hjlipp@web.de>
 *
 * =====================================================================
 *    This program is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU General Public License as
 *    published by the Free Software Foundation; either version 2 of
 *    the License, or (at your option) any later version.
 * =====================================================================
 */
#include "gigaset.h"
#include <linux/gigaset_dev.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
/*** our ioctls ***/
static int if_lock(struct cardstate *cs, int *arg)
{
	int cmd = *arg;
	gig_dbg(DEBUG_IF, "%u: if_lock (%d)", cs->minor_index, cmd);
	if (cmd > 1)
		return -EINVAL;
	if (cmd < 0) {
		*arg = cs->mstate == MS_LOCKED;
		return 0;
	}
	if (!cmd && cs->mstate == MS_LOCKED && cs->connected) {
		cs->ops->set_modem_ctrl(cs, 0, TIOCM_DTR | TIOCM_RTS);
		cs->ops->baud_rate(cs, B115200);
		cs->ops->set_line_ctrl(cs, CS8);
		cs->control_state = TIOCM_DTR | TIOCM_RTS;
	}
	cs->waiting = 1;
	if (!gigaset_add_event(cs, &cs->at_state, EV_IF_LOCK,
			       NULL, cmd, NULL)) {
		cs->waiting = 0;
		return -ENOMEM;
	}
	gigaset_schedule_event(cs);
	wait_event(cs->waitqueue, !cs->waiting);
	if (cs->cmd_result >= 0) {
		*arg = cs->cmd_result;
		return 0;
	}
	return cs->cmd_result;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 206 | 99.52% | 1 | 50.00% | 
| tilman schmidt | tilman schmidt | 1 | 0.48% | 1 | 50.00% | 
 | Total | 207 | 100.00% | 2 | 100.00% | 
static int if_version(struct cardstate *cs, unsigned arg[4])
{
	static const unsigned version[4] = GIG_VERSION;
	static const unsigned compat[4] = GIG_COMPAT;
	unsigned cmd = arg[0];
	gig_dbg(DEBUG_IF, "%u: if_version (%d)", cs->minor_index, cmd);
	switch (cmd) {
	case GIGVER_DRIVER:
		memcpy(arg, version, sizeof version);
		return 0;
	case GIGVER_COMPAT:
		memcpy(arg, compat, sizeof compat);
		return 0;
	case GIGVER_FWBASE:
		cs->waiting = 1;
		if (!gigaset_add_event(cs, &cs->at_state, EV_IF_VER,
				       NULL, 0, arg)) {
			cs->waiting = 0;
			return -ENOMEM;
		}
		gigaset_schedule_event(cs);
		wait_event(cs->waitqueue, !cs->waiting);
		if (cs->cmd_result >= 0)
			return 0;
		return cs->cmd_result;
	default:
		return -EINVAL;
	}
}
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| hansjoerg lipp | hansjoerg lipp | 175 | 99.43% | 1 | 50.00% | 
| tilman schmidt | tilman schmidt | 1 | 0.57% | 1 | 50.00% | 
 | Total | 176 | 100.00% | 2 | 100.00% | 
static int if_config(struct cardstate *cs, int *arg)
{
	gig_dbg(DEBUG_IF, "%u: if_config (%d)", cs->minor_index, *arg);
	if (*arg != 1)
		return -EINVAL;
	if (cs->mstate != MS_LOCKED)
		return -EBUSY;
	if (!cs->connected) {
		pr_err("%s: not connected\n", __func__);
		return -ENODEV;
	}
	*arg = 0;
	return gigaset_enterconfigmode(cs);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 62 | 74.70% | 1 | 25.00% | 
| tilman schmidt | tilman schmidt | 21 | 25.30% | 3 | 75.00% | 
 | Total | 83 | 100.00% | 4 | 100.00% | 
/*** the terminal driver ***/
static int if_open(struct tty_struct *tty, struct file *filp)
{
	struct cardstate *cs;
	gig_dbg(DEBUG_IF, "%d+%d: %s()",
		tty->driver->minor_start, tty->index, __func__);
	cs = gigaset_get_cs_by_tty(tty);
	if (!cs || !try_module_get(cs->driver->owner))
		return -ENODEV;
	if (mutex_lock_interruptible(&cs->mutex)) {
		module_put(cs->driver->owner);
		return -ERESTARTSYS;
	}
	tty->driver_data = cs;
	++cs->port.count;
	if (cs->port.count == 1) {
		tty_port_tty_set(&cs->port, tty);
		cs->port.low_latency = 1;
	}
	mutex_unlock(&cs->mutex);
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 107 | 73.79% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 16 | 11.03% | 3 | 42.86% | 
| jiri slaby | jiri slaby | 11 | 7.59% | 2 | 28.57% | 
| pavel shved | pavel shved | 11 | 7.59% | 1 | 14.29% | 
 | Total | 145 | 100.00% | 7 | 100.00% | 
static void if_close(struct tty_struct *tty, struct file *filp)
{
	struct cardstate *cs = tty->driver_data;
	if (!cs) { /* happens if we didn't find cs in open */
		gig_dbg(DEBUG_IF, "%s: no cardstate", __func__);
		return;
	}
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	mutex_lock(&cs->mutex);
	if (!cs->connected)
		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
	else if (!cs->port.count)
		dev_warn(cs->dev, "%s: device not opened\n", __func__);
	else if (!--cs->port.count)
		tty_port_tty_set(&cs->port, NULL);
	mutex_unlock(&cs->mutex);
	module_put(cs->driver->owner);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 81 | 58.70% | 1 | 11.11% | 
| tilman schmidt | tilman schmidt | 43 | 31.16% | 6 | 66.67% | 
| jiri slaby | jiri slaby | 14 | 10.14% | 2 | 22.22% | 
 | Total | 138 | 100.00% | 9 | 100.00% | 
static int if_ioctl(struct tty_struct *tty,
		    unsigned int cmd, unsigned long arg)
{
	struct cardstate *cs = tty->driver_data;
	int retval = -ENODEV;
	int int_arg;
	unsigned char buf[6];
	unsigned version[4];
	gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS;
	if (!cs->connected) {
		gig_dbg(DEBUG_IF, "not connected");
		retval = -ENODEV;
	} else {
		retval = 0;
		switch (cmd) {
		case GIGASET_REDIR:
			retval = get_user(int_arg, (int __user *) arg);
			if (retval >= 0)
				retval = if_lock(cs, &int_arg);
			if (retval >= 0)
				retval = put_user(int_arg, (int __user *) arg);
			break;
		case GIGASET_CONFIG:
			retval = get_user(int_arg, (int __user *) arg);
			if (retval >= 0)
				retval = if_config(cs, &int_arg);
			if (retval >= 0)
				retval = put_user(int_arg, (int __user *) arg);
			break;
		case GIGASET_BRKCHARS:
			retval = copy_from_user(&buf,
						(const unsigned char __user *) arg, 6)
				? -EFAULT : 0;
			if (retval >= 0) {
				gigaset_dbg_buffer(DEBUG_IF, "GIGASET_BRKCHARS",
						   6, (const unsigned char *) arg);
				retval = cs->ops->brkchars(cs, buf);
			}
			break;
		case GIGASET_VERSION:
			retval = copy_from_user(version,
						(unsigned __user *) arg, sizeof version)
				? -EFAULT : 0;
			if (retval >= 0)
				retval = if_version(cs, version);
			if (retval >= 0)
				retval = copy_to_user((unsigned __user *) arg,
						      version, sizeof version)
					? -EFAULT : 0;
			break;
		default:
			gig_dbg(DEBUG_IF, "%s: arg not supported - 0x%04x",
				__func__, cmd);
			retval = -ENOIOCTLCMD;
		}
	}
	mutex_unlock(&cs->mutex);
	return retval;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 336 | 87.50% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 44 | 11.46% | 5 | 71.43% | 
| jiri slaby | jiri slaby | 4 | 1.04% | 1 | 14.29% | 
 | Total | 384 | 100.00% | 7 | 100.00% | 
static int if_tiocmget(struct tty_struct *tty)
{
	struct cardstate *cs = tty->driver_data;
	int retval;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS;
	retval = cs->control_state & (TIOCM_RTS | TIOCM_DTR);
	mutex_unlock(&cs->mutex);
	return retval;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 63 | 86.30% | 1 | 25.00% | 
| tilman schmidt | tilman schmidt | 6 | 8.22% | 2 | 50.00% | 
| jiri slaby | jiri slaby | 4 | 5.48% | 1 | 25.00% | 
 | Total | 73 | 100.00% | 4 | 100.00% | 
static int if_tiocmset(struct tty_struct *tty,
		       unsigned int set, unsigned int clear)
{
	struct cardstate *cs = tty->driver_data;
	int retval;
	unsigned mc;
	gig_dbg(DEBUG_IF, "%u: %s(0x%x, 0x%x)",
		cs->minor_index, __func__, set, clear);
	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS;
	if (!cs->connected) {
		gig_dbg(DEBUG_IF, "not connected");
		retval = -ENODEV;
	} else {
		mc = (cs->control_state | set) & ~clear & (TIOCM_RTS | TIOCM_DTR);
		retval = cs->ops->set_modem_ctrl(cs, cs->control_state, mc);
		cs->control_state = mc;
	}
	mutex_unlock(&cs->mutex);
	return retval;
}
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| tilman schmidt | tilman schmidt | 9 | 6.34% | 3 | 60.00% | 
| jiri slaby | jiri slaby | 4 | 2.82% | 1 | 20.00% | 
 | Total | 142 | 100.00% | 5 | 100.00% | 
static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
	struct cardstate *cs = tty->driver_data;
	struct cmdbuf_t *cb;
	int retval;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS;
	if (!cs->connected) {
		gig_dbg(DEBUG_IF, "not connected");
		retval = -ENODEV;
		goto done;
	}
	if (cs->mstate != MS_LOCKED) {
		dev_warn(cs->dev, "can't write to unlocked device\n");
		retval = -EBUSY;
		goto done;
	}
	if (count <= 0) {
		/* nothing to do */
		retval = 0;
		goto done;
	}
	cb = kmalloc(sizeof(struct cmdbuf_t) + count, GFP_KERNEL);
	if (!cb) {
		dev_err(cs->dev, "%s: out of memory\n", __func__);
		retval = -ENOMEM;
		goto done;
	}
	memcpy(cb->buf, buf, count);
	cb->len = count;
	cb->offset = 0;
	cb->next = NULL;
	cb->wake_tasklet = &cs->if_wake_tasklet;
	retval = cs->ops->write_cmd(cs, cb);
done:
	mutex_unlock(&cs->mutex);
	return retval;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| tilman schmidt | tilman schmidt | 135 | 57.20% | 5 | 71.43% | 
| hansjoerg lipp | hansjoerg lipp | 97 | 41.10% | 1 | 14.29% | 
| jiri slaby | jiri slaby | 4 | 1.69% | 1 | 14.29% | 
 | Total | 236 | 100.00% | 7 | 100.00% | 
static int if_write_room(struct tty_struct *tty)
{
	struct cardstate *cs = tty->driver_data;
	int retval;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS;
	if (!cs->connected) {
		gig_dbg(DEBUG_IF, "not connected");
		retval = -ENODEV;
	} else if (cs->mstate != MS_LOCKED) {
		dev_warn(cs->dev, "can't write to unlocked device\n");
		retval = -EBUSY;
	} else
		retval = cs->ops->write_room(cs);
	mutex_unlock(&cs->mutex);
	return retval;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 84 | 70.59% | 1 | 16.67% | 
| tilman schmidt | tilman schmidt | 31 | 26.05% | 4 | 66.67% | 
| jiri slaby | jiri slaby | 4 | 3.36% | 1 | 16.67% | 
 | Total | 119 | 100.00% | 6 | 100.00% | 
static int if_chars_in_buffer(struct tty_struct *tty)
{
	struct cardstate *cs = tty->driver_data;
	int retval = 0;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	mutex_lock(&cs->mutex);
	if (!cs->connected)
		gig_dbg(DEBUG_IF, "not connected");
	else if (cs->mstate != MS_LOCKED)
		dev_warn(cs->dev, "can't write to unlocked device\n");
	else
		retval = cs->ops->chars_in_buffer(cs);
	mutex_unlock(&cs->mutex);
	return retval;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 71 | 70.30% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 26 | 25.74% | 5 | 71.43% | 
| jiri slaby | jiri slaby | 4 | 3.96% | 1 | 14.29% | 
 | Total | 101 | 100.00% | 7 | 100.00% | 
static void if_throttle(struct tty_struct *tty)
{
	struct cardstate *cs = tty->driver_data;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	mutex_lock(&cs->mutex);
	if (!cs->connected)
		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
	else
		gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__);
	mutex_unlock(&cs->mutex);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 47 | 63.51% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 25 | 33.78% | 5 | 71.43% | 
| jiri slaby | jiri slaby | 2 | 2.70% | 1 | 14.29% | 
 | Total | 74 | 100.00% | 7 | 100.00% | 
static void if_unthrottle(struct tty_struct *tty)
{
	struct cardstate *cs = tty->driver_data;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	mutex_lock(&cs->mutex);
	if (!cs->connected)
		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
	else
		gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__);
	mutex_unlock(&cs->mutex);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 47 | 63.51% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 25 | 33.78% | 5 | 71.43% | 
| jiri slaby | jiri slaby | 2 | 2.70% | 1 | 14.29% | 
 | Total | 74 | 100.00% | 7 | 100.00% | 
static void if_set_termios(struct tty_struct *tty, struct ktermios *old)
{
	struct cardstate *cs = tty->driver_data;
	unsigned int iflag;
	unsigned int cflag;
	unsigned int old_cflag;
	unsigned int control_state, new_state;
	gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
	mutex_lock(&cs->mutex);
	if (!cs->connected) {
		gig_dbg(DEBUG_IF, "not connected");
		goto out;
	}
	iflag = tty->termios.c_iflag;
	cflag = tty->termios.c_cflag;
	old_cflag = old ? old->c_cflag : cflag;
	gig_dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x",
		cs->minor_index, iflag, cflag, old_cflag);
	/* get a local copy of the current port settings */
	control_state = cs->control_state;
	/*
         * Update baud rate.
         * Do not attempt to cache old rates and skip settings,
         * disconnects screw such tricks up completely.
         * Premature optimization is the root of all evil.
         */
	/* reassert DTR and (maybe) RTS on transition from B0 */
	if ((old_cflag & CBAUD) == B0) {
		new_state = control_state | TIOCM_DTR;
		/* don't set RTS if using hardware flow control */
		if (!(old_cflag & CRTSCTS))
			new_state |= TIOCM_RTS;
		gig_dbg(DEBUG_IF, "%u: from B0 - set DTR%s",
			cs->minor_index,
			(new_state & TIOCM_RTS) ? " only" : "/RTS");
		cs->ops->set_modem_ctrl(cs, control_state, new_state);
		control_state = new_state;
	}
	cs->ops->baud_rate(cs, cflag & CBAUD);
	if ((cflag & CBAUD) == B0) {
		/* Drop RTS and DTR */
		gig_dbg(DEBUG_IF, "%u: to B0 - drop DTR/RTS", cs->minor_index);
		new_state = control_state & ~(TIOCM_DTR | TIOCM_RTS);
		cs->ops->set_modem_ctrl(cs, control_state, new_state);
		control_state = new_state;
	}
	/*
         * Update line control register (LCR)
         */
	cs->ops->set_line_ctrl(cs, cflag);
	/* save off the modified port settings */
	cs->control_state = control_state;
out:
	mutex_unlock(&cs->mutex);
}
Contributors
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| hansjoerg lipp | hansjoerg lipp | 279 | 93.31% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 13 | 4.35% | 3 | 42.86% | 
| jiri slaby | jiri slaby | 4 | 1.34% | 1 | 14.29% | 
| alan cox | alan cox | 3 | 1.00% | 2 | 28.57% | 
 | Total | 299 | 100.00% | 7 | 100.00% | 
static const struct tty_operations if_ops = {
	.open =			if_open,
	.close =		if_close,
	.ioctl =		if_ioctl,
	.write =		if_write,
	.write_room =		if_write_room,
	.chars_in_buffer =	if_chars_in_buffer,
	.set_termios =		if_set_termios,
	.throttle =		if_throttle,
	.unthrottle =		if_unthrottle,
	.tiocmget =		if_tiocmget,
	.tiocmset =		if_tiocmset,
};
/* wakeup tasklet for the write operation */
static void if_wake(unsigned long data)
{
	struct cardstate *cs = (struct cardstate *)data;
	tty_port_tty_wakeup(&cs->port);
}
Contributors
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| hansjoerg lipp | hansjoerg lipp | 24 | 80.00% | 1 | 25.00% | 
| jiri slaby | jiri slaby | 6 | 20.00% | 3 | 75.00% | 
 | Total | 30 | 100.00% | 4 | 100.00% | 
/*** interface to common ***/
void gigaset_if_init(struct cardstate *cs)
{
	struct gigaset_driver *drv;
	drv = cs->driver;
	if (!drv->have_tty)
		return;
	tasklet_init(&cs->if_wake_tasklet, if_wake, (unsigned long) cs);
	mutex_lock(&cs->mutex);
	cs->tty_dev = tty_port_register_device(&cs->port, drv->tty,
			cs->minor_index, NULL);
	if (!IS_ERR(cs->tty_dev))
		dev_set_drvdata(cs->tty_dev, cs);
	else {
		pr_warning("could not register device to the tty subsystem\n");
		cs->tty_dev = NULL;
	}
	mutex_unlock(&cs->mutex);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 87 | 75.00% | 2 | 28.57% | 
| tilman schmidt | tilman schmidt | 18 | 15.52% | 3 | 42.86% | 
| jiri slaby | jiri slaby | 6 | 5.17% | 1 | 14.29% | 
| greg kroah-hartman | greg kroah-hartman | 5 | 4.31% | 1 | 14.29% | 
 | Total | 116 | 100.00% | 7 | 100.00% | 
void gigaset_if_free(struct cardstate *cs)
{
	struct gigaset_driver *drv;
	drv = cs->driver;
	if (!drv->have_tty)
		return;
	tasklet_disable(&cs->if_wake_tasklet);
	tasklet_kill(&cs->if_wake_tasklet);
	cs->tty_dev = NULL;
	tty_unregister_device(drv->tty, cs->minor_index);
}
Contributors
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| hansjoerg lipp | hansjoerg lipp | 61 | 98.39% | 2 | 66.67% | 
| greg kroah-hartman | greg kroah-hartman | 1 | 1.61% | 1 | 33.33% | 
 | Total | 62 | 100.00% | 3 | 100.00% | 
/**
 * gigaset_if_receive() - pass a received block of data to the tty device
 * @cs:         device descriptor structure.
 * @buffer:     received data.
 * @len:        number of bytes received.
 *
 * Called by asyncdata/isocdata if a block of data received from the
 * device must be sent to userspace through the ttyG* device.
 */
void gigaset_if_receive(struct cardstate *cs,
			unsigned char *buffer, size_t len)
{
	tty_insert_flip_string(&cs->port, buffer, len);
	tty_flip_buffer_push(&cs->port);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 33 | 86.84% | 1 | 33.33% | 
| jiri slaby | jiri slaby | 5 | 13.16% | 2 | 66.67% | 
 | Total | 38 | 100.00% | 3 | 100.00% | 
EXPORT_SYMBOL_GPL(gigaset_if_receive);
/* gigaset_if_initdriver
 * Initialize tty interface.
 * parameters:
 *      drv             Driver
 *      procname        Name of the driver (e.g. for /proc/tty/drivers)
 *      devname         Name of the device files (prefix without minor number)
 */
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
			   const char *devname)
{
	int ret;
	struct tty_driver *tty;
	drv->have_tty = 0;
	drv->tty = tty = alloc_tty_driver(drv->minors);
	if (tty == NULL)
		goto enomem;
	tty->type =		TTY_DRIVER_TYPE_SERIAL;
	tty->subtype =		SERIAL_TYPE_NORMAL;
	tty->flags =		TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
	tty->driver_name =	procname;
	tty->name =		devname;
	tty->minor_start =	drv->minor;
	tty->init_termios          = tty_std_termios;
	tty->init_termios.c_cflag  = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
	tty_set_operations(tty, &if_ops);
	ret = tty_register_driver(tty);
	if (ret < 0) {
		pr_err("error %d registering tty driver\n", ret);
		goto error;
	}
	gig_dbg(DEBUG_IF, "tty driver initialized");
	drv->have_tty = 1;
	return;
enomem:
	pr_err("out of memory\n");
error:
	if (drv->tty)
		put_tty_driver(drv->tty);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 170 | 90.91% | 1 | 14.29% | 
| tilman schmidt | tilman schmidt | 11 | 5.88% | 3 | 42.86% | 
| joe perches | joe perches | 2 | 1.07% | 1 | 14.29% | 
| greg kroah-hartman | greg kroah-hartman | 2 | 1.07% | 1 | 14.29% | 
| jiri slaby | jiri slaby | 2 | 1.07% | 1 | 14.29% | 
 | Total | 187 | 100.00% | 7 | 100.00% | 
void gigaset_if_freedriver(struct gigaset_driver *drv)
{
	if (!drv->have_tty)
		return;
	drv->have_tty = 0;
	tty_unregister_driver(drv->tty);
	put_tty_driver(drv->tty);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 38 | 100.00% | 1 | 100.00% | 
 | Total | 38 | 100.00% | 1 | 100.00% | 
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| hansjoerg lipp | hansjoerg lipp | 2215 | 78.85% | 2 | 5.56% | 
| tilman schmidt | tilman schmidt | 490 | 17.44% | 18 | 50.00% | 
| jiri slaby | jiri slaby | 76 | 2.71% | 8 | 22.22% | 
| pavel shved | pavel shved | 11 | 0.39% | 1 | 2.78% | 
| greg kroah-hartman | greg kroah-hartman | 9 | 0.32% | 3 | 8.33% | 
| alan cox | alan cox | 3 | 0.11% | 2 | 5.56% | 
| paul gortmaker | paul gortmaker | 3 | 0.11% | 1 | 2.78% | 
| joe perches | joe perches | 2 | 0.07% | 1 | 2.78% | 
 | Total | 2809 | 100.00% | 36 | 100.00% | 
  
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