C++ (Cpp) if_version Examples

Example #1

File: interface.c Project: Tigrouzen/k1099

static int if_ioctl(struct tty_struct *tty, struct file *file,
		    unsigned int cmd, unsigned long arg)
{
	struct cardstate *cs;
	int retval = -ENODEV;
	int int_arg;
	unsigned char buf[6];
	unsigned version[4];

	cs = (struct cardstate *) tty->driver_data;
	if (!cs) {
		err("cs==NULL in %s", __func__);
		return -ENODEV;
	}

	gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);

	if (mutex_lock_interruptible(&cs->mutex))
		return -ERESTARTSYS; // FIXME -EINTR?

	if (!cs->open_count)
		warn("%s: device not opened", __func__);
	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:
			//FIXME test if MS_LOCKED
			if (!cs->connected) {
				gig_dbg(DEBUG_ANY,
				    "can't communicate with unplugged device");
				retval = -ENODEV;
				break;
			}
			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_ANY, "%s: arg not supported - 0x%04x",
				__func__, cmd);
			retval = -ENOIOCTLCMD;
		}
	}

	mutex_unlock(&cs->mutex);

	return retval;
}

Example #2

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;
}