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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | /* $Id: sgialib.h,v 1.2 1998/07/08 16:01:13 ralf Exp $ * sgialib.h: SGI ARCS firmware interface library for the Linux kernel. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) */ #ifndef _MIPS_SGIALIB_H #define _MIPS_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 int prom_init(int argc, char **argv, char **envp); /* 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, ...); /* Memory descriptor management. */ #define PROM_MAX_PMEMBLOCKS 32 struct prom_pmemblock { unsigned long base; /* Within KSEG0. */ unsigned int size; /* In bytes. */ unsigned int type; /* free or prom memory */ }; /* Get next memory descriptor after CURR, returns first descriptor * in chain is CURR is NULL. */ extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr); #define PROM_NULL_MDESC ((struct linux_mdesc *) 0) /* Called by prom_init to setup the physical memory pmemblock * array. */ extern void prom_meminit(void); extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem); /* Returns pointer to PROM physical memory block array. */ extern struct prom_pmemblock *prom_getpblock_array(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); /* Environemt variable routines. */ extern char *prom_getenv(char *name); extern long prom_setenv(char *name, char *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 prom_imode(void) __attribute__((noreturn)); extern long prom_cfgsave(void); extern struct linux_sysid *prom_getsysid(void); extern void prom_cacheflush(void); #endif /* !(_MIPS_SGIALIB_H) */ |