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