79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* SGI ARCS firmware interface library for the Linux kernel.
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
|
|
* Copyright (C) 2001, 2002 Ralf Baechle (ralf@gnu.org)
|
|
*/
|
|
#ifndef _ASM_SGIALIB_H
|
|
#define _ASM_SGIALIB_H
|
|
|
|
#include <asm/sgiarcs.h>
|
|
|
|
extern struct linux_romvec *romvec;
|
|
extern int prom_argc;
|
|
|
|
extern LONG *_prom_argv, *_prom_envp;
|
|
|
|
/* A 32-bit ARC PROM pass arguments and environment as 32-bit pointer.
|
|
These macros take care of sign extension. */
|
|
#define prom_argv(index) ((char *) (long) _prom_argv[(index)])
|
|
#define prom_argc(index) ((char *) (long) _prom_argc[(index)])
|
|
|
|
extern int prom_flags;
|
|
|
|
#define PROM_FLAG_ARCS 1
|
|
#define PROM_FLAG_USE_AS_CONSOLE 2
|
|
#define PROM_FLAG_DONT_FREE_TEMP 4
|
|
|
|
/* Simple char-by-char console I/O. */
|
|
extern void prom_putchar(char c);
|
|
extern char prom_getchar(void);
|
|
|
|
/* 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);
|
|
|
|
/* PROM device tree library routines. */
|
|
#define PROM_NULL_COMPONENT ((pcomponent *) 0)
|
|
|
|
/* Get sibling component of THIS. */
|
|
extern pcomponent *ArcGetPeer(pcomponent *this);
|
|
|
|
/* Get child component of THIS. */
|
|
extern pcomponent *ArcGetChild(pcomponent *this);
|
|
|
|
/* 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(PCHAR name);
|
|
extern LONG ArcSetEnvironmentVariable(PCHAR name, PCHAR value);
|
|
|
|
/* ARCS command line parsing. */
|
|
extern void prom_init_cmdline(void);
|
|
|
|
/* File operations. */
|
|
extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
|
|
extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
|
|
|
|
/* Misc. routines. */
|
|
extern VOID ArcReboot(VOID) __attribute__((noreturn));
|
|
extern VOID ArcEnterInteractiveMode(VOID) __attribute__((noreturn));
|
|
extern VOID ArcFlushAllCaches(VOID);
|
|
extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID);
|
|
|
|
#endif /* _ASM_SGIALIB_H */
|