162306a36Sopenharmony_ci/*
262306a36Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public
362306a36Sopenharmony_ci * License.  See the file "COPYING" in the main directory of this archive
462306a36Sopenharmony_ci * for more details.
562306a36Sopenharmony_ci *
662306a36Sopenharmony_ci * SGI ARCS firmware interface library for the Linux kernel.
762306a36Sopenharmony_ci *
862306a36Sopenharmony_ci * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
962306a36Sopenharmony_ci * Copyright (C) 2001, 2002 Ralf Baechle (ralf@gnu.org)
1062306a36Sopenharmony_ci */
1162306a36Sopenharmony_ci#ifndef _ASM_SGIALIB_H
1262306a36Sopenharmony_ci#define _ASM_SGIALIB_H
1362306a36Sopenharmony_ci
1462306a36Sopenharmony_ci#include <linux/compiler.h>
1562306a36Sopenharmony_ci#include <asm/sgiarcs.h>
1662306a36Sopenharmony_ci
1762306a36Sopenharmony_ciextern struct linux_romvec *romvec;
1862306a36Sopenharmony_ci
1962306a36Sopenharmony_ciextern int prom_flags;
2062306a36Sopenharmony_ci
2162306a36Sopenharmony_ci#define PROM_FLAG_ARCS			1
2262306a36Sopenharmony_ci#define PROM_FLAG_USE_AS_CONSOLE	2
2362306a36Sopenharmony_ci#define PROM_FLAG_DONT_FREE_TEMP	4
2462306a36Sopenharmony_ci
2562306a36Sopenharmony_ci/* Simple char-by-char console I/O. */
2662306a36Sopenharmony_ciextern char prom_getchar(void);
2762306a36Sopenharmony_ci
2862306a36Sopenharmony_ci/* Get next memory descriptor after CURR, returns first descriptor
2962306a36Sopenharmony_ci * in chain is CURR is NULL.
3062306a36Sopenharmony_ci */
3162306a36Sopenharmony_ciextern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr);
3262306a36Sopenharmony_ci#define PROM_NULL_MDESC	  ((struct linux_mdesc *) 0)
3362306a36Sopenharmony_ci
3462306a36Sopenharmony_ci/* Called by prom_init to setup the physical memory pmemblock
3562306a36Sopenharmony_ci * array.
3662306a36Sopenharmony_ci */
3762306a36Sopenharmony_ciextern void prom_meminit(void);
3862306a36Sopenharmony_ci
3962306a36Sopenharmony_ci/* PROM device tree library routines. */
4062306a36Sopenharmony_ci#define PROM_NULL_COMPONENT ((pcomponent *) 0)
4162306a36Sopenharmony_ci
4262306a36Sopenharmony_ci/* This is called at prom_init time to identify the
4362306a36Sopenharmony_ci * ARC architecture we are running on
4462306a36Sopenharmony_ci */
4562306a36Sopenharmony_ciextern void prom_identify_arch(void);
4662306a36Sopenharmony_ci
4762306a36Sopenharmony_ci/* Environment variable routines. */
4862306a36Sopenharmony_ciextern PCHAR ArcGetEnvironmentVariable(PCHAR name);
4962306a36Sopenharmony_ci
5062306a36Sopenharmony_ci/* ARCS command line parsing. */
5162306a36Sopenharmony_ciextern void prom_init_cmdline(int argc, LONG *argv);
5262306a36Sopenharmony_ci
5362306a36Sopenharmony_ci/* File operations. */
5462306a36Sopenharmony_ciextern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
5562306a36Sopenharmony_ciextern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt);
5662306a36Sopenharmony_ci
5762306a36Sopenharmony_ci/* Misc. routines. */
5862306a36Sopenharmony_ciextern VOID ArcEnterInteractiveMode(VOID) __noreturn;
5962306a36Sopenharmony_ciextern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID);
6062306a36Sopenharmony_ci
6162306a36Sopenharmony_ci#endif /* _ASM_SGIALIB_H */
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