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/*
* Mach Operating System
* Copyright (c) 1992, 1991 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:35:03 rpd
* $FreeBSD$
*/
/*
* Extensions for El Torito CD-ROM booting:
*
* Copyright © 1997 Pluto Technologies International, Inc. Boulder CO
* Copyright © 1997 interface business GmbH, Dresden.
* All rights reserved.
*
* This code has been written by Jörg Wunsch, Dresden.
* Direct comments to <joerg_wunsch@interface-business.de>.
*
* 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(S) ``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(S) 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.
*/
#include <sys/param.h>
#include <sys/time.h>
/*
* Specification packet per El Torito, BIOS int 0x13 fn 0x4b00/0x4b01
*/
struct specpacket
{
u_char size; /* must be 0x13 */
u_char mediatype; /*
* 0 - no emulation
* 1 - 1.2 MB floppy
* 2 - 1.44 MB floppy
* 3 - 2.88 MB floppy
* 4 - hard disk C:
*/
u_char drvno; /* emulated drive number */
u_char ctrlindx; /* controller index, see El Torito */
u_int32_t lba; /* LBA of emulated disk drive */
u_int16_t devspec; /* device specification, see El Torito */
u_int16_t ubufseg; /* user buffer segment */
u_int16_t loadseg; /* load segment; 0 => use BIOS default 0x7c0 */
u_int16_t seccnt; /* number of auto-loaded (virtual) sectors */
u_char cyls; /* same values as in int 0x13, fn 8 */
u_char secs;
u_char heads;
};
/*
* Disk address packet for extended BIOS int 0x13 fn's 0x41...0x48.
*/
struct daddrpacket
{
u_char size; /* size of daddrpacket, must be 0x10 */
u_char reserved1;
u_char nblocks; /*
* number of 512-byte blocks to transfer,
* must be <= 127
*/
u_char reserved2;
u_int16_t boffs; /* bseg:boffs denominate the transfer buffer */
u_int16_t bseg;
u_int32_t lba; /* actually a 64-bit type, but 64-bit arith */
u_int32_t lbahigh; /* is expensive, and we don't really need it */
};
#ifdef DEBUG
# define DPRINTF(x) printf x
#else
# define DPRINTF(x)
#endif
/* asm.S */
#if ASM_ONLY
void real_to_prot(void);
void prot_to_real(void);
#endif
void startprog(unsigned int physaddr, int howto, int bootdev,
/* XXX struct bootinfo * */ unsigned int bootinfo);
void pbzero(void *dst, size_t count);
void pcpy(const void *src, void *dst, size_t count);
/* bios.S */
int biosread(int dev, int cyl, int head, int sec, int nsec, void *offset);
int getbootspec(struct specpacket *offset);
int biosreadlba(struct daddrpacket *daddr);
void putc(int c);
int getc(void);
int ischar(void);
int get_diskinfo(int drive);
int memsize(int extended);
/* boot.c */
extern int loadflags;
void boot(int drive);
/* boot2.S */
void boot2(void);
/* cdrom.c */
extern u_int32_t sessionstart;
int devopen(u_int32_t session);
void seek(u_int32_t offs);
int read(u_char *addr, size_t size);
int xread(u_char *addr, size_t size);
int openrd(char *name);
/* io.c */
void gateA20(void);
void printf(const char *format, ...);
void putchar(int c);
void delay1ms(void);
int gets(char *buf);
int strcasecmp(const char *s1, const char *s2);
int strcmp(const char *s1, const char *s2);
void bcopy(const void *from, void *to, size_t len);
void twiddle(void);
/* probe_keyboard.c */
int probe_keyboard(void);
/* serial.S */
void serial_putc(int ch);
int serial_getc(void);
int serial_ischar(void);
void init_serial(void);
/* table.c */
extern char *devs[];
extern unsigned long tw_chars;
/* malloc.c */
void *malloc(size_t size);
void free(void *chunk);
/* linker stuff */
extern void end;
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