projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * SGI ARCS firmware interface library for the Linux kernel. | |
| 7 | * | |
| 8 | * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) | |
| 9 | * Copyright (C) 2001, 2002 Ralf Baechle (ralf@gnu.org) | |
| 10 | */ | |
| 11 | #ifndef _ASM_SGIALIB_H | |
| 12 | #define _ASM_SGIALIB_H | |
| 13 | ||
| 14 | #include <asm/sgiarcs.h> | |
| 15 | ||
| 16 | extern struct linux_romvec *romvec; | |
| 17 | extern int prom_argc; | |
| 18 | ||
| 19 | extern LONG *_prom_argv, *_prom_envp; | |
| 20 | ||
| 21 | /* A 32-bit ARC PROM pass arguments and environment as 32-bit pointer. | |
| 22 | These macros take care of sign extension. */ | |
| 23 | #define prom_argv(index) ((char *) (long) _prom_argv[(index)]) | |
| 24 | #define prom_argc(index) ((char *) (long) _prom_argc[(index)]) | |
| 25 | ||
| 26 | extern int prom_flags; | |
| 27 | ||
| 28 | #define PROM_FLAG_ARCS 1 | |
| 29 | #define PROM_FLAG_USE_AS_CONSOLE 2 | |
| 30 | #define PROM_FLAG_DONT_FREE_TEMP 4 | |
| 31 | ||
| 32 | /* Simple char-by-char console I/O. */ | |
| 33 | extern void prom_putchar(char c); | |
| 34 | extern char prom_getchar(void); | |
| 35 | ||
| 1da177e4 LT |
36 | /* Memory descriptor management. */ |
| 37 | #define PROM_MAX_PMEMBLOCKS 32 | |
| 38 | struct prom_pmemblock { | |
| 39 | LONG base; /* Within KSEG0 or XKPHYS. */ | |
| 40 | ULONG size; /* In bytes. */ | |
| 41 | ULONG type; /* free or prom memory */ | |
| 42 | }; | |
| 43 | ||
| 44 | /* Get next memory descriptor after CURR, returns first descriptor | |
| 45 | * in chain is CURR is NULL. | |
| 46 | */ | |
| 47 | extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr); | |
| 48 | #define PROM_NULL_MDESC ((struct linux_mdesc *) 0) | |
| 49 | ||
| 50 | /* Called by prom_init to setup the physical memory pmemblock | |
| 51 | * array. | |
| 52 | */ | |
| 53 | extern void prom_meminit(void); | |
| 54 | extern void prom_fixup_mem_map(unsigned long start_mem, unsigned long end_mem); | |
| 55 | ||
| 56 | /* PROM device tree library routines. */ | |
| 57 | #define PROM_NULL_COMPONENT ((pcomponent *) 0) | |
| 58 | ||
| 59 | /* Get sibling component of THIS. */ | |
| 60 | extern pcomponent *ArcGetPeer(pcomponent *this); | |
| 61 | ||
| 62 | /* Get child component of THIS. */ | |
| 63 | extern pcomponent *ArcGetChild(pcomponent *this); | |
| 64 | ||
| 65 | /* Get parent component of CHILD. */ | |
| 66 | extern pcomponent *prom_getparent(pcomponent *child); | |
| 67 | ||
| 68 | /* Copy component opaque data of component THIS into BUFFER | |
| 69 | * if component THIS has opaque data. Returns success or | |
| 70 | * failure status. | |
| 71 | */ | |
| 72 | extern long prom_getcdata(void *buffer, pcomponent *this); | |
| 73 | ||
| 74 | /* Other misc. component routines. */ | |
| 75 | extern pcomponent *prom_childadd(pcomponent *this, pcomponent *tmp, void *data); | |
| 76 | extern long prom_delcomponent(pcomponent *this); | |
| 77 | extern pcomponent *prom_componentbypath(char *path); | |
| 78 | ||
| 79 | /* This is called at prom_init time to identify the | |
| 80 | * ARC architecture we are running on | |
| 81 | */ | |
| 82 | extern void prom_identify_arch(void); | |
| 83 | ||
| 84 | /* Environment variable routines. */ | |
| 85 | extern PCHAR ArcGetEnvironmentVariable(PCHAR name); | |
| 86 | extern LONG ArcSetEnvironmentVariable(PCHAR name, PCHAR value); | |
| 87 | ||
| 88 | /* ARCS command line acquisition and parsing. */ | |
| 89 | extern char *prom_getcmdline(void); | |
| 90 | extern void prom_init_cmdline(void); | |
| 91 | ||
| 92 | /* Acquiring info about the current time, etc. */ | |
| 93 | extern struct linux_tinfo *prom_gettinfo(void); | |
| 94 | extern unsigned long prom_getrtime(void); | |
| 95 | ||
| 96 | /* File operations. */ | |
| 97 | extern long prom_getvdirent(unsigned long fd, struct linux_vdirent *ent, unsigned long num, unsigned long *cnt); | |
| 98 | extern long prom_open(char *name, enum linux_omode md, unsigned long *fd); | |
| 99 | extern long prom_close(unsigned long fd); | |
| 100 | extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt); | |
| 101 | extern long prom_getrstatus(unsigned long fd); | |
| 102 | extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt); | |
| 103 | extern long prom_seek(unsigned long fd, struct linux_bigint *off, enum linux_seekmode sm); | |
| 104 | extern long prom_mount(char *name, enum linux_mountops op); | |
| 105 | extern long prom_getfinfo(unsigned long fd, struct linux_finfo *buf); | |
| 106 | extern long prom_setfinfo(unsigned long fd, unsigned long flags, unsigned long msk); | |
| 107 | ||
| 108 | /* Running stand-along programs. */ | |
| 109 | extern long prom_load(char *name, unsigned long end, unsigned long *pc, unsigned long *eaddr); | |
| 110 | extern long prom_invoke(unsigned long pc, unsigned long sp, long argc, char **argv, char **envp); | |
| 111 | extern long prom_exec(char *name, long argc, char **argv, char **envp); | |
| 112 | ||
| 113 | /* Misc. routines. */ | |
| 114 | extern VOID prom_halt(VOID) __attribute__((noreturn)); | |
| 115 | extern VOID prom_powerdown(VOID) __attribute__((noreturn)); | |
| 116 | extern VOID prom_restart(VOID) __attribute__((noreturn)); | |
| 117 | extern VOID ArcReboot(VOID) __attribute__((noreturn)); | |
| 118 | extern VOID ArcEnterInteractiveMode(VOID) __attribute__((noreturn)); | |
| 119 | extern long prom_cfgsave(VOID); | |
| 120 | extern struct linux_sysid *prom_getsysid(VOID); | |
| 121 | extern VOID ArcFlushAllCaches(VOID); | |
| 122 | extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID); | |
| 123 | ||
| 124 | #endif /* _ASM_SGIALIB_H */ |