xref: /freebsd-11-stable/stand/uboot/lib/libuboot.h

/*-
 * Copyright (C) 2000 Benno Rice.
 * Copyright (C) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: head/sys/boot/uboot/lib/libuboot.h 176348 2008-02-16 22:13:11Z marcel $
 */

/*
 * Fully-qualified device descriptor.
 * Note, this must match the 'struct devdesc' declaration
 * in bootstrap.h.
 */
struct uboot_devdesc
{
    struct devsw	*d_dev;
    int			d_type;
    int			d_unit;
    union
    {
	struct
	{
	    void	*data;
	    int		slice;
	    int		partition;
	} disk;
    } d_kind;
};

/*
 * Default network packet alignment in memory
 */
#define PKTALIGN	32

extern int uboot_getdev(void **vdev, const char *devspec, const char **path);
extern char *uboot_fmtdev(void *vdev);
extern int uboot_setcurrdev(struct env_var *ev, int flags, const void *value);

extern struct netif_driver	uboot_net;
extern struct devsw		uboot_disk;

ssize_t	uboot_copyin(const void *src, vm_offset_t dest, const size_t len);
ssize_t uboot_copyout(const vm_offset_t src, void *dest, const size_t len);
ssize_t uboot_readin(const int fd, vm_offset_t dest, const size_t len);

extern int uboot_autoload(void);

struct preloaded_file;
struct file_format;

extern struct file_format	uboot_elf;

extern void	reboot(void);