freebsd-dev/sys/boot/uboot/lib/libuboot.h
Ian Lepore 8e97c09f47 Enhance the mechanism that lets you configure the ubldr boot device by
setting the u-boot environment variable loaderdev=.  It used to accept only
'disk' or 'net'.  Now it allows specification of unit, slice, and partition
as well.  In addition to the generic 'disk' it also accepts specific
storage device types such as 'mmc' or 'sata'.

If there isn't a loaderdev env var, the historical behavior is maintained.
It will use the first storage device it finds, or a network device if
no working storage device exists.

99% of the work on this was done by Patrick Kelsey, but I made some
changes, so if anything goes wrong, blame me.

Submitted by:	Patrick Kelsey <kelsey@ieee.org>
2014-03-11 22:02:49 +00:00

80 lines
2.5 KiB
C

/*-
* 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.
*
* $FreeBSD$
*/
struct uboot_devdesc
{
struct devsw *d_dev;
int d_type;
int d_unit;
void *d_opendata;
union {
struct {
int slice;
int partition;
off_t offset;
} disk;
} d_kind;
};
#define d_disk d_kind.disk
/*
* Default network packet alignment in memory
*/
#define PKTALIGN 32
int uboot_getdev(void **vdev, const char *devspec, const char **path);
char *uboot_fmtdev(void *vdev);
int uboot_setcurrdev(struct env_var *ev, int flags, const void *value);
extern int devs_no;
extern struct netif_driver uboot_net;
extern struct devsw uboot_storage;
void *uboot_vm_translate(vm_offset_t);
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;
void reboot(void);
int uboot_diskgetunit(int type, int type_unit);
#if defined(LOADER_FDT_SUPPORT)
extern int fdt_setup_fdtp();
extern int fdt_copy(vm_offset_t);
#endif