patch-2.4.22 linux-2.4.22/include/asm-mips64/dec/prom.h

• Lines: 168
• Date: 2003-08-25 04:44:44.000000000 -0700
• Orig file: linux-2.4.21/include/asm-mips64/dec/prom.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-mips64/dec/prom.h linux-2.4.22/include/asm-mips64/dec/prom.h
@@ -0,0 +1,167 @@
+/*
+ *	DECstation PROM interface.
+ *
+ *	Copyright (C) 2002  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Based on arch/mips/dec/prom/prom.h by the Anonymous.
+ */
+#ifndef __ASM_DEC_PROM_H
+#define __ASM_DEC_PROM_H
+
+#include <linux/types.h>
+
+#include <asm/addrspace.h>
+
+/*
+ * PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.
+ * Many of these will work for MIPSen as well!
+ */
+#define VEC_RESET		(u64 *)KSEG1ADDR(0x1fc00000)
+							/* Prom base address */
+
+#define PMAX_PROM_ENTRY(x)	(VEC_RESET + (x))	/* Prom jump table */
+
+#define PMAX_PROM_HALT		PMAX_PROM_ENTRY(2)	/* valid on MIPSen */
+#define PMAX_PROM_AUTOBOOT	PMAX_PROM_ENTRY(5)	/* valid on MIPSen */
+#define PMAX_PROM_OPEN		PMAX_PROM_ENTRY(6)
+#define PMAX_PROM_READ		PMAX_PROM_ENTRY(7)
+#define PMAX_PROM_CLOSE		PMAX_PROM_ENTRY(10)
+#define PMAX_PROM_LSEEK		PMAX_PROM_ENTRY(11)
+#define PMAX_PROM_GETCHAR	PMAX_PROM_ENTRY(12)
+#define PMAX_PROM_PUTCHAR	PMAX_PROM_ENTRY(13)	/* 12 on MIPSen */
+#define PMAX_PROM_GETS		PMAX_PROM_ENTRY(15)
+#define PMAX_PROM_PRINTF	PMAX_PROM_ENTRY(17)
+#define PMAX_PROM_GETENV	PMAX_PROM_ENTRY(33)	/* valid on MIPSen */
+
+
+/*
+ * Magic number indicating REX PROM available on DECstation.  Found in
+ * register a2 on transfer of control to program from PROM.
+ */
+#define REX_PROM_MAGIC		0x30464354
+
+#ifdef CONFIG_MIPS64
+
+#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.  */
+
+#else /* !CONFIG_MIPS64 */
+
+#define prom_is_rex(magic)	((magic) == REX_PROM_MAGIC)
+
+#endif /* !CONFIG_MIPS64 */
+
+
+/*
+ * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and
+ * DS5000/2x0.
+ */
+#define REX_PROM_GETBITMAP	0x84/4	/* get mem bitmap */
+#define REX_PROM_GETCHAR	0x24/4	/* getch() */
+#define REX_PROM_GETENV		0x64/4	/* get env. variable */
+#define REX_PROM_GETSYSID	0x80/4	/* get system id */
+#define REX_PROM_GETTCINFO	0xa4/4
+#define REX_PROM_PRINTF		0x30/4	/* printf() */
+#define REX_PROM_SLOTADDR	0x6c/4	/* slotaddr */
+#define REX_PROM_BOOTINIT	0x54/4	/* open() */
+#define REX_PROM_BOOTREAD	0x58/4	/* read() */
+#define REX_PROM_CLEARCACHE	0x7c/4
+
+
+/*
+ * Used by rex_getbitmap().
+ */
+typedef struct {
+	int pagesize;
+	unsigned char bitmap[0];
+} memmap;
+
+
+/*
+ * Function pointers as read from a PROM's callback vector.
+ */
+extern int (*__rex_bootinit)(void);
+extern int (*__rex_bootread)(void);
+extern int (*__rex_getbitmap)(memmap *);
+extern unsigned long *(*__rex_slot_address)(int);
+extern void *(*__rex_gettcinfo)(void);
+extern int (*__rex_getsysid)(void);
+extern void (*__rex_clear_cache)(void);
+
+extern int (*__prom_getchar)(void);
+extern char *(*__prom_getenv)(char *);
+extern int (*__prom_printf)(char *, ...);
+
+extern int (*__pmax_open)(char*, int);
+extern int (*__pmax_lseek)(int, long, int);
+extern int (*__pmax_read)(int, void *, int);
+extern int (*__pmax_close)(int);
+
+
+#ifdef CONFIG_MIPS64
+
+/*
+ * On MIPS64 we have to call PROM functions via a helper
+ * dispatcher to accomodate ABI incompatibilities.
+ */
+#define __DEC_PROM_O32 __attribute__((alias("call_o32")))
+
+int _rex_bootinit(int (*)(void)) __DEC_PROM_O32;
+int _rex_bootread(int (*)(void)) __DEC_PROM_O32;
+int _rex_getbitmap(int (*)(memmap *), memmap *) __DEC_PROM_O32;
+unsigned long *_rex_slot_address(unsigned long *(*)(int), int) __DEC_PROM_O32;
+void *_rex_gettcinfo(void *(*)(void)) __DEC_PROM_O32;
+int _rex_getsysid(int (*)(void)) __DEC_PROM_O32;
+void _rex_clear_cache(void (*)(void)) __DEC_PROM_O32;
+
+int _prom_getchar(int (*)(void)) __DEC_PROM_O32;
+char *_prom_getenv(char *(*)(char *), char *) __DEC_PROM_O32;
+int _prom_printf(int (*)(char *, ...), char *, ...) __DEC_PROM_O32;
+
+
+#define rex_bootinit()		_rex_bootinit(__rex_bootinit)
+#define rex_bootread()		_rex_bootread(__rex_bootread)
+#define rex_getbitmap(x)	_rex_getbitmap(__rex_getbitmap, x)
+#define rex_slot_address(x)	_rex_slot_address(__rex_slot_address, x)
+#define rex_gettcinfo()		_rex_gettcinfo(__rex_gettcinfo)
+#define rex_getsysid()		_rex_getsysid(__rex_getsysid)
+#define rex_clear_cache()	_rex_clear_cache(__rex_clear_cache)
+
+#define prom_getchar()		_prom_getchar(__prom_getchar)
+#define prom_getenv(x)		_prom_getenv(__prom_getenv, x)
+#define prom_printf(x...)	_prom_printf(__prom_printf, x)
+
+#else /* !CONFIG_MIPS64 */
+
+/*
+ * On plain MIPS we just call PROM functions directly.
+ */
+#define rex_bootinit		__rex_bootinit
+#define rex_bootread		__rex_bootread
+#define rex_getbitmap		__rex_getbitmap
+#define rex_slot_address	__rex_slot_address
+#define rex_gettcinfo		__rex_gettcinfo
+#define rex_getsysid		__rex_getsysid
+#define rex_clear_cache		__rex_clear_cache
+
+#define prom_getchar		__prom_getchar
+#define prom_getenv		__prom_getenv
+#define prom_printf		__prom_printf
+
+#define pmax_open		__pmax_open
+#define pmax_lseek		__pmax_lseek
+#define pmax_read		__pmax_read
+#define pmax_close		__pmax_close
+
+#endif /* !CONFIG_MIPS64 */
+
+
+extern void prom_meminit(u32);
+extern void prom_identify_arch(u32);
+extern void prom_init_cmdline(s32, s32 *, u32);
+
+#endif /* __ASM_DEC_PROM_H */