| /* |
| * sgialib.h: SGI ARCS firmware interface library for the Linux kernel. |
| * |
| * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) |
| */ |
| #ifndef _ASM_SGIALIB_H |
| #define _ASM_SGIALIB_H |
| |
| #include <asm/sgiarcs.h> |
| |
| extern struct linux_promblock *sgi_pblock; |
| extern struct linux_romvec *romvec; |
| extern int prom_argc; |
| extern char **prom_argv, **prom_envp; |
| |
| extern int prom_flags; |
| #define PROM_FLAG_ARCS 1 |
| |
| /* |
| * Init the PROM library and it's internal data structures. Called |
| * at boot time from head.S before start_kernel is invoked. |
| */ |
| extern void prom_init(int argc, char **argv, char **envp, int *prom_vec); |
| |
| /* Simple char-by-char console I/O. */ |
| extern void prom_putchar(char c); |
| extern char prom_getchar(void); |
| |
| /* Generic printf() using ARCS console I/O. */ |
| extern void prom_printf(char *fmt, ...); |
| |
| #define PROM_NULL_MDESC ((struct linux_mdesc *) 0) |
| |
| /* Called by prom_init to setup the physical memory pmemblock |
| * array. |
| */ |
| extern void prom_meminit(void); |
| |
| /* PROM device tree library routines. */ |
| #define PROM_NULL_COMPONENT ((pcomponent *) 0) |
| |
| /* Get sibling component of THIS. */ |
| extern pcomponent *prom_getsibling(pcomponent *this); |
| |
| /* Get child component of THIS. */ |
| extern pcomponent *prom_getchild(pcomponent *this); |
| |
| /* Get parent component of CHILD. */ |
| extern pcomponent *prom_getparent(pcomponent *child); |
| |
| /* Copy component opaque data of component THIS into BUFFER |
| * if component THIS has opaque data. Returns success or |
| * failure status. |
| */ |
| extern long prom_getcdata(void *buffer, pcomponent *this); |
| |
| /* Other misc. component routines. */ |
| extern pcomponent *prom_childadd(pcomponent *this, pcomponent *tmp, void *data); |
| extern long prom_delcomponent(pcomponent *this); |
| extern pcomponent *prom_componentbypath(char *path); |
| |
| /* This is called at prom_init time to identify the |
| * ARC architecture we are running on |
| */ |
| extern void prom_identify_arch(void); |
| |
| /* Environment variable routines. */ |
| extern PCHAR ArcGetEnvironmentVariable(CHAR *name); |
| extern LONG ArcSetEnvironmentVariable(PCHAR name, PCHAR value); |
| |
| /* ARCS command line acquisition and parsing. */ |
| extern char *prom_getcmdline(void); |
| extern void prom_init_cmdline(void); |
| |
| /* Acquiring info about the current time, etc. */ |
| extern struct linux_tinfo *prom_gettinfo(void); |
| extern unsigned long prom_getrtime(void); |
| |
| /* File operations. */ |
| extern long prom_getvdirent(unsigned long fd, struct linux_vdirent *ent, unsigned long num, unsigned long *cnt); |
| extern long prom_open(char *name, enum linux_omode md, unsigned long *fd); |
| extern long prom_close(unsigned long fd); |
| extern long prom_read(unsigned long fd, void *buf, unsigned long num, unsigned long *cnt); |
| extern long prom_getrstatus(unsigned long fd); |
| extern long prom_write(unsigned long fd, void *buf, unsigned long num, unsigned long *cnt); |
| extern long prom_seek(unsigned long fd, struct linux_bigint *off, enum linux_seekmode sm); |
| extern long prom_mount(char *name, enum linux_mountops op); |
| extern long prom_getfinfo(unsigned long fd, struct linux_finfo *buf); |
| extern long prom_setfinfo(unsigned long fd, unsigned long flags, unsigned long msk); |
| |
| /* Running stand-along programs. */ |
| extern long prom_load(char *name, unsigned long end, unsigned long *pc, unsigned long *eaddr); |
| extern long prom_invoke(unsigned long pc, unsigned long sp, long argc, char **argv, char **envp); |
| extern long prom_exec(char *name, long argc, char **argv, char **envp); |
| |
| /* Misc. routines. */ |
| extern void prom_halt(void) __attribute__((noreturn)); |
| extern void prom_powerdown(void) __attribute__((noreturn)); |
| extern void prom_restart(void) __attribute__((noreturn)); |
| extern void prom_reboot(void) __attribute__((noreturn)); |
| extern void ArcEnterInteractiveMode(void) __attribute__((noreturn)); |
| extern long prom_cfgsave(void); |
| extern struct linux_sysid *prom_getsysid(void); |
| extern void prom_cacheflush(void); |
| |
| #endif /* _ASM_SGIALIB_H */ |