Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * |
Justin P. Mattock | 79add62 | 2011-04-04 14:15:29 -0700 | [diff] [blame] | 8 | * Copyright (C) 1996 David S. Miller (davem@davemloft.net) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | /* Get next memory descriptor after CURR, returns first descriptor |
| 37 | * in chain is CURR is NULL. |
| 38 | */ |
| 39 | extern struct linux_mdesc *prom_getmdesc(struct linux_mdesc *curr); |
Ralf Baechle | 7034228 | 2013-01-22 12:59:30 +0100 | [diff] [blame^] | 40 | #define PROM_NULL_MDESC ((struct linux_mdesc *) 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | /* Called by prom_init to setup the physical memory pmemblock |
| 43 | * array. |
| 44 | */ |
| 45 | extern void prom_meminit(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
| 47 | /* PROM device tree library routines. */ |
| 48 | #define PROM_NULL_COMPONENT ((pcomponent *) 0) |
| 49 | |
| 50 | /* Get sibling component of THIS. */ |
| 51 | extern pcomponent *ArcGetPeer(pcomponent *this); |
| 52 | |
| 53 | /* Get child component of THIS. */ |
| 54 | extern pcomponent *ArcGetChild(pcomponent *this); |
| 55 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | /* This is called at prom_init time to identify the |
| 57 | * ARC architecture we are running on |
| 58 | */ |
| 59 | extern void prom_identify_arch(void); |
| 60 | |
| 61 | /* Environment variable routines. */ |
| 62 | extern PCHAR ArcGetEnvironmentVariable(PCHAR name); |
| 63 | extern LONG ArcSetEnvironmentVariable(PCHAR name, PCHAR value); |
| 64 | |
Dmitri Vorobiev | cb6edd4 | 2009-10-13 22:37:01 +0300 | [diff] [blame] | 65 | /* ARCS command line parsing. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | extern void prom_init_cmdline(void); |
| 67 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | /* File operations. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | extern LONG ArcRead(ULONG fd, PVOID buf, ULONG num, PULONG cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | extern LONG ArcWrite(ULONG fd, PVOID buf, ULONG num, PULONG cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
| 72 | /* Misc. routines. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | extern VOID ArcReboot(VOID) __attribute__((noreturn)); |
| 74 | extern VOID ArcEnterInteractiveMode(VOID) __attribute__((noreturn)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | extern VOID ArcFlushAllCaches(VOID); |
| 76 | extern DISPLAY_STATUS *ArcGetDisplayStatus(ULONG FileID); |
| 77 | |
| 78 | #endif /* _ASM_SGIALIB_H */ |