1384740dcSRalf Baechle /* 2384740dcSRalf Baechle * This file is subject to the terms and conditions of the GNU General Public 3384740dcSRalf Baechle * License. See the file "COPYING" in the main directory of this archive 4384740dcSRalf Baechle * for more details. 5384740dcSRalf Baechle * 6384740dcSRalf Baechle * SGI ARCS firmware interface library for the Linux kernel. 7384740dcSRalf Baechle * 879add627SJustin P. Mattock * Copyright (C) 1996 David S. Miller (davem@davemloft.net) 9384740dcSRalf Baechle * Copyright (C) 2001, 2002 Ralf Baechle (ralf@gnu.org) 10384740dcSRalf Baechle */ 11384740dcSRalf Baechle #ifndef _ASM_SGIALIB_H 12384740dcSRalf Baechle #define _ASM_SGIALIB_H 13384740dcSRalf Baechle 14bb03006eSRalf Baechle #include <linux/compiler.h> 15384740dcSRalf Baechle #include <asm/sgiarcs.h> 16384740dcSRalf Baechle 17384740dcSRalf Baechle extern struct linux_romvec *romvec; 18384740dcSRalf Baechle 19384740dcSRalf Baechle extern int prom_flags; 20384740dcSRalf Baechle 21384740dcSRalf Baechle #define PROM_FLAG_ARCS 1 22384740dcSRalf Baechle #define PROM_FLAG_USE_AS_CONSOLE 2 23384740dcSRalf Baechle #define PROM_FLAG_DONT_FREE_TEMP 4 24384740dcSRalf Baechle 25384740dcSRalf Baechle /* Simple char-by-char console I/O. */ 26384740dcSRalf Baechle extern char prom_getchar(void); 27384740dcSRalf Baechle 28384740dcSRalf Baechle /* Get next memory descriptor after CURR, returns first descriptor 29384740dcSRalf Baechle * in chain is CURR is NULL. 30384740dcSRalf Baechle */ 31384740dcSRalf Baechle extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr); 32384740dcSRalf Baechle #define PROM_NULL_MDESC ((struct linux_mdesc *) 0) 33384740dcSRalf Baechle 34384740dcSRalf Baechle /* Called by prom_init to setup the physical memory pmemblock 35384740dcSRalf Baechle * array. 36384740dcSRalf Baechle */ 37384740dcSRalf Baechle extern void prom_meminit(void); 38384740dcSRalf Baechle 39384740dcSRalf Baechle /* PROM device tree library routines. */ 40384740dcSRalf Baechle #define PROM_NULL_COMPONENT ((pcomponent *) 0) 41384740dcSRalf Baechle 42384740dcSRalf Baechle /* This is called at prom_init time to identify the 43384740dcSRalf Baechle * ARC architecture we are running on 44384740dcSRalf Baechle */ 45384740dcSRalf Baechle extern void prom_identify_arch(void); 46384740dcSRalf Baechle 47384740dcSRalf Baechle /* Environment variable routines. */ 48384740dcSRalf Baechle extern PCHAR ArcGetEnvironmentVariable(PCHAR name); 49384740dcSRalf Baechle 50cb6edd45SDmitri Vorobiev /* ARCS command line parsing. */ 517b16831dSThomas Bogendoerfer extern void prom_init_cmdline(int argc, LONG *argv); 52384740dcSRalf Baechle 53384740dcSRalf Baechle /* File operations. */ 54384740dcSRalf Baechle extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt); 55384740dcSRalf Baechle extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt); 56384740dcSRalf Baechle 57384740dcSRalf Baechle /* Misc. routines. */ 58bb03006eSRalf Baechle extern VOID ArcEnterInteractiveMode(VOID) __noreturn; 59384740dcSRalf Baechle extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID); 60384740dcSRalf Baechle 61384740dcSRalf Baechle #endif /* _ASM_SGIALIB_H */ 62