File: /usr/src/linux/arch/mips/dec/prom/prom.h

1     /*  
2      * Miscellaneous definitions used to call the routines contained in the boot
3      * PROMs on various models of DECSTATION's.
4      * the rights to redistribute these changes.
5      */
6     
7     #ifndef __ASM_DEC_PROM_H 
8     #define __ASM_DEC_PROM_H 
9     
10     /*
11      * PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.  Many of
12      * these will work for MIPSen as well!
13      */
14     #define VEC_RESET		0xBFC00000		/* Prom base address */
15     #define	PMAX_PROM_ENTRY(x)	(VEC_RESET+((x)*8))	/* Prom jump table */
16     
17     #define	PMAX_PROM_HALT		PMAX_PROM_ENTRY(2)	/* valid on MIPSen */
18     #define	PMAX_PROM_AUTOBOOT	PMAX_PROM_ENTRY(5)	/* valid on MIPSen */
19     #define	PMAX_PROM_OPEN		PMAX_PROM_ENTRY(6)
20     #define	PMAX_PROM_READ		PMAX_PROM_ENTRY(7)
21     #define	PMAX_PROM_CLOSE		PMAX_PROM_ENTRY(10)
22     #define	PMAX_PROM_LSEEK		PMAX_PROM_ENTRY(11)
23     #define PMAX_PROM_GETCHAR       PMAX_PROM_ENTRY(12)
24     #define	PMAX_PROM_PUTCHAR	PMAX_PROM_ENTRY(13)	/* 12 on MIPSen */
25     #define	PMAX_PROM_GETS		PMAX_PROM_ENTRY(15)
26     #define	PMAX_PROM_PRINTF	PMAX_PROM_ENTRY(17)
27     #define	PMAX_PROM_GETENV	PMAX_PROM_ENTRY(33)	/* valid on MIPSen */
28     
29     /*
30      * Magic number indicating REX PROM available on DECSTATION.  Found in
31      * register a2 on transfer of control to program from PROM.
32      */
33     #define	REX_PROM_MAGIC		0x30464354
34     
35     /*
36      * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's, and
37      * DS5000/2x0.
38      */
39     #define REX_PROM_GETBITMAP	0x84/4	/* get mem bitmap */
40     #define REX_PROM_GETCHAR	0x24/4	/* getch() */
41     #define REX_PROM_GETENV		0x64/4	/* get env. variable */
42     #define REX_PROM_GETSYSID	0x80/4	/* get system id */
43     #define REX_PROM_GETTCINFO	0xa4/4
44     #define REX_PROM_PRINTF		0x30/4	/* printf() */
45     #define REX_PROM_SLOTADDR	0x6c/4	/* slotaddr */
46     #define REX_PROM_BOOTINIT	0x54/4	/* open() */
47     #define REX_PROM_BOOTREAD	0x58/4	/* read() */
48     #define REX_PROM_CLEARCACHE	0x7c/4
49     
50     #endif /* __ASM_DEC_PROM_H */
51     
52