1. 根目录:
2. arch
3. mips
4. include
5. asm
6. mipsprom.h

#ifndef __ASM_MIPS_PROM_H
#define __ASM_MIPS_PROM_H

#define PROM_RESET		0
#define PROM_EXEC		1
#define PROM_RESTART		2
#define PROM_REINIT		3
#define PROM_REBOOT		4
#define PROM_AUTOBOOT		5
#define PROM_OPEN		6
#define PROM_READ		7
#define PROM_WRITE		8
#define PROM_IOCTL		9
#define PROM_CLOSE		10
#define PROM_GETCHAR		11
#define PROM_PUTCHAR		12
#define PROM_SHOWCHAR		13	/* XXX */
#define PROM_GETS		14	/* XXX */
#define PROM_PUTS		15	/* XXX */
#define PROM_PRINTF		16	/* XXX */

/* What are these for? */
#define PROM_INITPROTO		17	/* XXX */
#define PROM_PROTOENABLE	18	/* XXX */
#define PROM_PROTODISABLE	19	/* XXX */
#define PROM_GETPKT		20	/* XXX */
#define PROM_PUTPKT		21	/* XXX */

/* More PROM shit.  Probably has to do with VME RMW cycles??? */
#define PROM_ORW_RMW		22	/* XXX */
#define PROM_ORH_RMW		23	/* XXX */
#define PROM_ORB_RMW		24	/* XXX */
#define PROM_ANDW_RMW		25	/* XXX */
#define PROM_ANDH_RMW		26	/* XXX */
#define PROM_ANDB_RMW		27	/* XXX */

/* Cache handling stuff */
#define PROM_FLUSHCACHE		28	/* XXX */
#define PROM_CLEARCACHE		29	/* XXX */

/* Libc alike stuff */
#define PROM_SETJMP		30	/* XXX */
#define PROM_LONGJMP		31	/* XXX */
#define PROM_BEVUTLB		32	/* XXX */
#define PROM_GETENV		33	/* XXX */
#define PROM_SETENV		34	/* XXX */
#define PROM_ATOB		35	/* XXX */
#define PROM_STRCMP		36	/* XXX */
#define PROM_STRLEN		37	/* XXX */
#define PROM_STRCPY		38	/* XXX */
#define PROM_STRCAT		39	/* XXX */

/* Misc stuff */
#define PROM_PARSER		40	/* XXX */
#define PROM_RANGE		41	/* XXX */
#define PROM_ARGVIZE		42	/* XXX */
#define PROM_HELP		43	/* XXX */

/* Entry points for some PROM commands */
#define PROM_DUMPCMD		44	/* XXX */
#define PROM_SETENVCMD		45	/* XXX */
#define PROM_UNSETENVCMD	46	/* XXX */
#define PROM_PRINTENVCMD	47	/* XXX */
#define PROM_BEVEXCEPT		48	/* XXX */
#define PROM_ENABLECMD		49	/* XXX */
#define PROM_DISABLECMD		50	/* XXX */

#define PROM_CLEARNOFAULT	51	/* XXX */
#define PROM_NOTIMPLEMENT	52	/* XXX */

#define PROM_NV_GET		53	/* XXX */
#define PROM_NV_SET		54	/* XXX */

extern char *prom_getenv(char *);

#endif /* __ASM_MIPS_PROM_H */