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/*
* This file is licensed under the terms of the GNU General Public License,
* version 2. See the file COPYING in the main directory for details.
*
* Copyright (C) 2001 Gergely Nagy <algernon@debian.org>
* Copyright (C) 2002,2003 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
*/
#ifndef DEC_PROM_H
#define DEC_PROM_H
#define DEC_REX_MAGIC 0x30464354
#define DEC_CPUNUM(sysid) ((sysid >> 24) & 0xff)
#define DEC_SYSTYPE(sysid) ((sysid >> 16) & 0xff)
#define DEC_FIRMREV(sysid) ((sysid >> 8) & 0xff)
#define DEC_ETC(sysid) (sysid & 0xff)
#define SYS_DSUNKNOWN 0
#define SYS_DS23100 1 /* DECstation 2100 or 3100 */
#define SYS_DS5000_200 2 /* DECstation 5000/200 */
#define SYS_DS5000_1XX 3 /* DECstation 5000/120, 125, 133, 150 */
#define SYS_DS5000_2X0 4 /* DECstation 5000/240, 260 */
#define SYS_DS5800 5 /* DECstation 5800 */
#define SYS_DS5400 6 /* DECstation 5400 */
#define SYS_DS5000_XX 7 /* DECstation 5000/20, 25, 33, 50 */
#define SYS_DS5500 11 /* DECstation 5500 */
#define SYS_DS5100 12 /* DECstation 5100 */
#define FIRM_TFC0 2
#define FIRM_TFC1 3
/* Function offsets */
#define REX_PROM_STRCAT 0x08
#define REX_PROM_STRCMP 0x0c
#define REX_PROM_STRCPY 0x10
#define REX_PROM_STRLEN 0x14
#define REX_PROM_GETCHAR 0x24
#define REX_PROM_GETS 0x28
#define REX_PROM_PUTS 0x2c
#define REX_PROM_PRINTF 0x30
#define REX_PROM_BOOTINIT 0x54
#define REX_PROM_BOOTREAD 0x58
#define REX_PROM_GETENV 0x64
#define REX_PROM_SLOTADDR 0x6c
#define REX_PROM_CLEARCACHE 0x7c
#define REX_PROM_GETSYSID 0x80
#define REX_PROM_GETBITMAP 0x84
#define REX_PROM_HALT 0x9C
#define REX_PROM_GETTCINFO 0xa4
/* The size of each function */
#define PROM_FSIZE 4
#ifndef __ASSEMBLY__
extern int dec_sysid;
/* Some broken firmware (5000/120, KN02-BA V5.7e) returns -1 for bootinit. */
#define BROKEN_BOOTINIT(sysid) ((DEC_SYSTYPE(sysid) == SYS_DS5000_1XX) \
&& (DEC_FIRMREV(sysid) == FIRM_TFC0))
#define BROKEN_BOOTREAD(sysid) ((DEC_SYSTYPE(sysid) == SYS_DS5000_1XX) \
&& (DEC_FIRMREV(sysid) == FIRM_TFC0))
struct callback {
void *unused1[11]; /* unused functions 0x0 - 0x28 */
int (*_puts)(char *s); /* 0x2c */
int (*_printf)(char *fmt, ...); /* 0x30 */
void *unused2[8]; /* unused functions 0x34 - 0x50 */
int (*_bootinit)(char *fname); /* 0x54 */
int (*_bootread)(int b, void *buffer, int n); /* 0x58 */
void *unused3[8]; /* unused functions 0x5c - 0x78 */
int (*_clearcache)(void); /* 0x7c */
int (*_getsysid)(void); /* 0x80 */
void *unused4[6]; /* unused functions 0x84 - 0x98 */
void (*_halt)(int a, int b); /* 0x9c */
};
extern const struct callback *callv;
/* MIPS CPUs have their reset vector at 0xbfc00000 */
#define EMERGENCY_RESET (((void (*)(void))0xbfc00000))
#endif /* !__ASSEMBLY__ */
#endif /* !DEC_PROM_H */
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