| /* |
| * 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 <linux/compiler.h> |
| #include <asm/sgiarcs.h> |
| |
| extern struct linux_romvec *romvec; |
| |
| 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 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) |
| |
| /* 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); |
| |
| /* ARCS command line parsing. */ |
| extern void prom_init_cmdline(int argc, LONG *argv); |
| |
| /* 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 ArcEnterInteractiveMode(VOID) __noreturn; |
| extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID); |
| |
| #endif /* _ASM_SGIALIB_H */ |
