91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/*-
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* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* i386 fully-qualified device descriptor.
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* Note, this must match the 'struct devdesc' declaration
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* in bootstrap.h.
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*/
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struct i386_devdesc
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{
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struct devsw *d_dev;
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int d_type;
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union
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{
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struct
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{
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int unit;
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int slice;
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int partition;
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void *data;
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} biosdisk;
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struct
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{
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int unit; /* XXX net layer lives over these? */
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} netif;
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} d_kind;
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};
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int i386_getdev(void **vdev, const char *devspec, const char **path);
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char *i386_fmtdev(void *vdev);
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int i386_setcurrdev(struct env_var *ev, int flags, void *value);
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extern struct devdesc currdev; /* our current device */
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#define MAXDEV 31 /* maximum number of distinct devices */
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/* exported devices XXX rename? */
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extern struct devsw biosdisk;
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extern struct devsw pxedisk;
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extern struct fs_ops pxe_fsops;
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u_int32_t bd_getbigeom(int bunit); /* return geometry in bootinfo format */
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int bd_bios2unit(int biosdev); /* xlate BIOS device -> biosdisk unit */
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int bd_unit2bios(int unit); /* xlate biosdisk unit -> BIOS device */
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int bd_getdev(struct i386_devdesc *dev); /* return dev_t for (dev) */
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ssize_t i386_copyin(const void *src, vm_offset_t dest, const size_t len);
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ssize_t i386_copyout(const vm_offset_t src, void *dest, const size_t len);
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ssize_t i386_readin(const int fd, vm_offset_t dest, const size_t len);
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void bios_getmem(void);
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extern u_int32_t bios_basemem; /* base memory in bytes */
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extern u_int32_t bios_extmem; /* extended memory in bytes */
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extern vm_offset_t memtop;
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void gateA20(void);
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int i386_autoload(void);
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int bi_getboothowto(char *kargs);
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vm_offset_t bi_copyenv(vm_offset_t addr);
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int bi_load(char *args, int *howtop, int *bootdevp, vm_offset_t *bip);
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void pxe_enable(void *pxeinfo);
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