[deliverable/linux.git] / arch / x86 / boot / boot.h

/* -*- linux-c -*- ------------------------------------------------------- *
 *
 *   Copyright (C) 1991, 1992 Linus Torvalds
 *   Copyright 2007 rPath, Inc. - All Rights Reserved
 *   Copyright 2009 Intel Corporation; author H. Peter Anvin
 *
 *   This file is part of the Linux kernel, and is made available under
 *   the terms of the GNU General Public License version 2.
 *
 * ----------------------------------------------------------------------- */

/*
 * Header file for the real-mode kernel code
 */

#ifndef BOOT_BOOT_H
#define BOOT_BOOT_H

#define STACK_SIZE	512	/* Minimum number of bytes for stack */

#ifndef __ASSEMBLY__

#include <stdarg.h>
#include <linux/types.h>
#include <linux/edd.h>
#include <asm/boot.h>
#include <asm/setup.h>
#include "bitops.h"
#include <asm/cpufeature.h>
#include <asm/processor-flags.h>
#include "ctype.h"

/* Useful macros */
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))

extern struct setup_header hdr;
extern struct boot_params boot_params;

#define cpu_relax()	asm volatile("rep; nop")

/* Basic port I/O */
static inline void outb(u8 v, u16 port)
{
	asm volatile("outb %0,%1" : : "a" (v), "dN" (port));
}
static inline u8 inb(u16 port)
{
	u8 v;
	asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));
	return v;
}

static inline void outw(u16 v, u16 port)
{
	asm volatile("outw %0,%1" : : "a" (v), "dN" (port));
}
static inline u16 inw(u16 port)
{
	u16 v;
	asm volatile("inw %1,%0" : "=a" (v) : "dN" (port));
	return v;
}

static inline void outl(u32 v, u16 port)
{
	asm volatile("outl %0,%1" : : "a" (v), "dN" (port));
}
static inline u32 inl(u16 port)
{
	u32 v;
	asm volatile("inl %1,%0" : "=a" (v) : "dN" (port));
	return v;
}

static inline void io_delay(void)
{
	const u16 DELAY_PORT = 0x80;
	asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT));
}

/* These functions are used to reference data in other segments. */

static inline u16 ds(void)
{
	u16 seg;
	asm("movw %%ds,%0" : "=rm" (seg));
	return seg;
}

static inline void set_fs(u16 seg)
{
	asm volatile("movw %0,%%fs" : : "rm" (seg));
}
static inline u16 fs(void)
{
	u16 seg;
	asm volatile("movw %%fs,%0" : "=rm" (seg));
	return seg;
}

static inline void set_gs(u16 seg)
{
	asm volatile("movw %0,%%gs" : : "rm" (seg));
}
static inline u16 gs(void)
{
	u16 seg;
	asm volatile("movw %%gs,%0" : "=rm" (seg));
	return seg;
}

typedef unsigned int addr_t;

static inline u8 rdfs8(addr_t addr)
{
	u8 v;
	asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
	return v;
}
static inline u16 rdfs16(addr_t addr)
{
	u16 v;
	asm volatile("movw %%fs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr));
	return v;
}
static inline u32 rdfs32(addr_t addr)
{
	u32 v;
	asm volatile("movl %%fs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr));
	return v;
}

static inline void wrfs8(u8 v, addr_t addr)
{
	asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
}
static inline void wrfs16(u16 v, addr_t addr)
{
	asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
}
static inline void wrfs32(u32 v, addr_t addr)
{
	asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
}

static inline u8 rdgs8(addr_t addr)
{
	u8 v;
	asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
	return v;
}
static inline u16 rdgs16(addr_t addr)
{
	u16 v;
	asm volatile("movw %%gs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr));
	return v;
}
static inline u32 rdgs32(addr_t addr)
{
	u32 v;
	asm volatile("movl %%gs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr));
	return v;
}

static inline void wrgs8(u8 v, addr_t addr)
{
	asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
}
static inline void wrgs16(u16 v, addr_t addr)
{
	asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
}
static inline void wrgs32(u32 v, addr_t addr)
{
	asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
}

/* Note: these only return true/false, not a signed return value! */
static inline int memcmp(const void *s1, const void *s2, size_t len)
{
	u8 diff;
	asm("repe; cmpsb; setnz %0"
	    : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
	return diff;
}

static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
{
	u8 diff;
	asm volatile("fs; repe; cmpsb; setnz %0"
		     : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
	return diff;
}
static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
{
	u8 diff;
	asm volatile("gs; repe; cmpsb; setnz %0"
		     : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
	return diff;
}

/* Heap -- available for dynamic lists. */
extern char _end[];
extern char *HEAP;
extern char *heap_end;
#define RESET_HEAP() ((void *)( HEAP = _end ))
static inline char *__get_heap(size_t s, size_t a, size_t n)
{
	char *tmp;

	HEAP = (char *)(((size_t)HEAP+(a-1)) & ~(a-1));
	tmp = HEAP;
	HEAP += s*n;
	return tmp;
}
#define GET_HEAP(type, n) \
	((type *)__get_heap(sizeof(type),__alignof__(type),(n)))

static inline bool heap_free(size_t n)
{
	return (int)(heap_end-HEAP) >= (int)n;
}

/* copy.S */

void copy_to_fs(addr_t dst, void *src, size_t len);
void *copy_from_fs(void *dst, addr_t src, size_t len);
void copy_to_gs(addr_t dst, void *src, size_t len);
void *copy_from_gs(void *dst, addr_t src, size_t len);
void *memcpy(void *dst, void *src, size_t len);
void *memset(void *dst, int c, size_t len);

#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
#define memset(d,c,l) __builtin_memset(d,c,l)

/* a20.c */
int enable_a20(void);

/* apm.c */
int query_apm_bios(void);

/* bioscall.c */
struct biosregs {
	union {
		struct {
			u32 edi;
			u32 esi;
			u32 ebp;
			u32 _esp;
			u32 ebx;
			u32 edx;
			u32 ecx;
			u32 eax;
			u32 _fsgs;
			u32 _dses;
			u32 eflags;
		};
		struct {
			u16 di, hdi;
			u16 si, hsi;
			u16 bp, hbp;
			u16 _sp, _hsp;
			u16 bx, hbx;
			u16 dx, hdx;
			u16 cx, hcx;
			u16 ax, hax;
			u16 gs, fs;
			u16 es, ds;
			u16 flags, hflags;
		};
		struct {
			u8 dil, dih, edi2, edi3;
			u8 sil, sih, esi2, esi3;
			u8 bpl, bph, ebp2, ebp3;
			u8 _spl, _sph, _esp2, _esp3;
			u8 bl, bh, ebx2, ebx3;
			u8 dl, dh, edx2, edx3;
			u8 cl, ch, ecx2, ecx3;
			u8 al, ah, eax2, eax3;
		};
	};
};
void intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg);

/* cmdline.c */
int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int bufsize);
int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option);
static inline int cmdline_find_option(const char *option, char *buffer, int bufsize)
{
	return __cmdline_find_option(boot_params.hdr.cmd_line_ptr, option, buffer, bufsize);
}

static inline int cmdline_find_option_bool(const char *option)
{
	return __cmdline_find_option_bool(boot_params.hdr.cmd_line_ptr, option);
}


/* cpu.c, cpucheck.c */
struct cpu_features {
	int level;		/* Family, or 64 for x86-64 */
	int model;
	u32 flags[NCAPINTS];
};
extern struct cpu_features cpu;
int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr);
int validate_cpu(void);

/* early_serial_console.c */
extern int early_serial_base;
void console_init(void);

/* edd.c */
void query_edd(void);

/* header.S */
void __attribute__((noreturn)) die(void);

/* mca.c */
int query_mca(void);

/* memory.c */
int detect_memory(void);

/* pm.c */
void __attribute__((noreturn)) go_to_protected_mode(void);

/* pmjump.S */
void __attribute__((noreturn))
	protected_mode_jump(u32 entrypoint, u32 bootparams);

/* printf.c */
int sprintf(char *buf, const char *fmt, ...);
int vsprintf(char *buf, const char *fmt, va_list args);
int printf(const char *fmt, ...);

/* regs.c */
void initregs(struct biosregs *regs);

/* string.c */
int strcmp(const char *str1, const char *str2);
int strncmp(const char *cs, const char *ct, size_t count);
size_t strnlen(const char *s, size_t maxlen);
unsigned int atou(const char *s);
unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base);

/* tty.c */
void puts(const char *);
void putchar(int);
int getchar(void);
void kbd_flush(void);
int getchar_timeout(void);

/* video.c */
void set_video(void);

/* video-mode.c */
int set_mode(u16 mode);
int mode_defined(u16 mode);
void probe_cards(int unsafe);

/* video-vesa.c */
void vesa_store_edid(void);

#endif /* __ASSEMBLY__ */

#endif /* BOOT_BOOT_H */
Commit	Line	Data
62bd0337 PA	1	/* -- linux-c -- ------------------------------------------------------- *
	2	*
	3	* Copyright (C) 1991, 1992 Linus Torvalds
	4	* Copyright 2007 rPath, Inc. - All Rights Reserved
7a734e7d	5	* Copyright 2009 Intel Corporation; author H. Peter Anvin
62bd0337 PA	6	*
	7	* This file is part of the Linux kernel, and is made available under
	8	* the terms of the GNU General Public License version 2.
	9	*
	10	* ----------------------------------------------------------------------- */
	11
	12	/*
62bd0337 PA	13	* Header file for the real-mode kernel code
	14	*/
	15
	16	#ifndef BOOT_BOOT_H
	17	#define BOOT_BOOT_H
	18
6b6815c6 PA	19	#define STACK_SIZE 512 /* Minimum number of bytes for stack */
6b6815c6 PA	20
62bd0337 PA	21	#ifndef __ASSEMBLY__
	22
	23	#include <stdarg.h>
	24	#include <linux/types.h>
	25	#include <linux/edd.h>
	26	#include <asm/boot.h>
fa76dab9	27	#include <asm/setup.h>
c2dcfde8 PA	28	#include "bitops.h"
c2dcfde8 PA	29	#include <asm/cpufeature.h>
7a734e7d	30	#include <asm/processor-flags.h>
6238b47b	31	#include "ctype.h"
7b27718b	32
62bd0337 PA	33	/* Useful macros */
	34	#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
	35
1b72691c AK	36	#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
1b72691c AK	37
62bd0337 PA	38	extern struct setup_header hdr;
	39	extern struct boot_params boot_params;
	40
fa97bdf9 PE	41	#define cpu_relax() asm volatile("rep; nop")
fa97bdf9 PE	42
62bd0337 PA	43	/* Basic port I/O */
	44	static inline void outb(u8 v, u16 port)
	45	{
	46	asm volatile("outb %0,%1" : : "a" (v), "dN" (port));
	47	}
	48	static inline u8 inb(u16 port)
	49	{
	50	u8 v;
	51	asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));
	52	return v;
	53	}
	54
	55	static inline void outw(u16 v, u16 port)
	56	{
	57	asm volatile("outw %0,%1" : : "a" (v), "dN" (port));
	58	}
	59	static inline u16 inw(u16 port)
	60	{
	61	u16 v;
	62	asm volatile("inw %1,%0" : "=a" (v) : "dN" (port));
	63	return v;
	64	}
	65
	66	static inline void outl(u32 v, u16 port)
	67	{
5593eaa8	68	asm volatile("outl %0,%1" : : "a" (v), "dN" (port));
62bd0337	69	}
35f1790e	70	static inline u32 inl(u16 port)
62bd0337 PA	71	{
	72	u32 v;
	73	asm volatile("inl %1,%0" : "=a" (v) : "dN" (port));
	74	return v;
	75	}
	76
	77	static inline void io_delay(void)
	78	{
	79	const u16 DELAY_PORT = 0x80;
	80	asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT));
	81	}
	82
	83	/* These functions are used to reference data in other segments. */
	84
	85	static inline u16 ds(void)
	86	{
	87	u16 seg;
	88	asm("movw %%ds,%0" : "=rm" (seg));
	89	return seg;
	90	}
	91
	92	static inline void set_fs(u16 seg)
	93	{
	94	asm volatile("movw %0,%%fs" : : "rm" (seg));
	95	}
	96	static inline u16 fs(void)
	97	{
	98	u16 seg;
b015124e	99	asm volatile("movw %%fs,%0" : "=rm" (seg));
62bd0337 PA	100	return seg;
	101	}
	102
	103	static inline void set_gs(u16 seg)
	104	{
	105	asm volatile("movw %0,%%gs" : : "rm" (seg));
	106	}
	107	static inline u16 gs(void)
	108	{
	109	u16 seg;
b015124e	110	asm volatile("movw %%gs,%0" : "=rm" (seg));
62bd0337 PA	111	return seg;
	112	}
	113
	114	typedef unsigned int addr_t;
	115
	116	static inline u8 rdfs8(addr_t addr)
	117	{
	118	u8 v;
811a0fff	119	asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" ((u8 )addr));
62bd0337 PA	120	return v;
	121	}
	122	static inline u16 rdfs16(addr_t addr)
	123	{
	124	u16 v;
b015124e	125	asm volatile("movw %%fs:%1,%0" : "=r" (v) : "m" ((u16 )addr));
62bd0337 PA	126	return v;
	127	}
	128	static inline u32 rdfs32(addr_t addr)
	129	{
	130	u32 v;
b015124e	131	asm volatile("movl %%fs:%1,%0" : "=r" (v) : "m" ((u32 )addr));
62bd0337 PA	132	return v;
	133	}
	134
	135	static inline void wrfs8(u8 v, addr_t addr)
	136	{
811a0fff	137	asm volatile("movb %1,%%fs:%0" : "+m" ((u8 )addr) : "qi" (v));
62bd0337 PA	138	}
	139	static inline void wrfs16(u16 v, addr_t addr)
	140	{
811a0fff	141	asm volatile("movw %1,%%fs:%0" : "+m" ((u16 )addr) : "ri" (v));
62bd0337 PA	142	}
	143	static inline void wrfs32(u32 v, addr_t addr)
	144	{
811a0fff	145	asm volatile("movl %1,%%fs:%0" : "+m" ((u32 )addr) : "ri" (v));
62bd0337 PA	146	}
	147
	148	static inline u8 rdgs8(addr_t addr)
	149	{
	150	u8 v;
811a0fff	151	asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" ((u8 )addr));
62bd0337 PA	152	return v;
	153	}
	154	static inline u16 rdgs16(addr_t addr)
	155	{
	156	u16 v;
b015124e	157	asm volatile("movw %%gs:%1,%0" : "=r" (v) : "m" ((u16 )addr));
62bd0337 PA	158	return v;
	159	}
	160	static inline u32 rdgs32(addr_t addr)
	161	{
	162	u32 v;
b015124e	163	asm volatile("movl %%gs:%1,%0" : "=r" (v) : "m" ((u32 )addr));
62bd0337 PA	164	return v;
	165	}
	166
	167	static inline void wrgs8(u8 v, addr_t addr)
	168	{
811a0fff	169	asm volatile("movb %1,%%gs:%0" : "+m" ((u8 )addr) : "qi" (v));
62bd0337 PA	170	}
	171	static inline void wrgs16(u16 v, addr_t addr)
	172	{
811a0fff	173	asm volatile("movw %1,%%gs:%0" : "+m" ((u16 )addr) : "ri" (v));
62bd0337 PA	174	}
	175	static inline void wrgs32(u32 v, addr_t addr)
	176	{
811a0fff	177	asm volatile("movl %1,%%gs:%0" : "+m" ((u32 )addr) : "ri" (v));
62bd0337 PA	178	}
	179
	180	/* Note: these only return true/false, not a signed return value! */
	181	static inline int memcmp(const void s1, const void s2, size_t len)
	182	{
	183	u8 diff;
	184	asm("repe; cmpsb; setnz %0"
	185	: "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
	186	return diff;
	187	}
	188
	189	static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
	190	{
	191	u8 diff;
b015124e PA	192	asm volatile("fs; repe; cmpsb; setnz %0"
b015124e PA	193	: "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
62bd0337 PA	194	return diff;
	195	}
	196	static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
	197	{
	198	u8 diff;
b015124e PA	199	asm volatile("gs; repe; cmpsb; setnz %0"
b015124e PA	200	: "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
62bd0337 PA	201	return diff;
	202	}
	203
62bd0337	204	/* Heap -- available for dynamic lists. */
62bd0337 PA	205	extern char _end[];
	206	extern char *HEAP;
	207	extern char *heap_end;
	208	#define RESET_HEAP() ((void *)( HEAP = _end ))
	209	static inline char *__get_heap(size_t s, size_t a, size_t n)
	210	{
	211	char *tmp;
	212
	213	HEAP = (char *)(((size_t)HEAP+(a-1)) & ~(a-1));
	214	tmp = HEAP;
	215	HEAP += s*n;
	216	return tmp;
	217	}
	218	#define GET_HEAP(type, n) \
	219	((type *)__get_heap(sizeof(type),__alignof__(type),(n)))
	220
e6e1ace9	221	static inline bool heap_free(size_t n)
62bd0337	222	{
e6e1ace9	223	return (int)(heap_end-HEAP) >= (int)n;
62bd0337 PA	224	}
	225
	226	/* copy.S */
	227
	228	void copy_to_fs(addr_t dst, void *src, size_t len);
	229	void copy_from_fs(void dst, addr_t src, size_t len);
	230	void copy_to_gs(addr_t dst, void *src, size_t len);
	231	void copy_from_gs(void dst, addr_t src, size_t len);
	232	void memcpy(void dst, void *src, size_t len);
	233	void memset(void dst, int c, size_t len);
	234
	235	#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
	236	#define memset(d,c,l) __builtin_memset(d,c,l)
	237
	238	/* a20.c */
	239	int enable_a20(void);
	240
	241	/* apm.c */
	242	int query_apm_bios(void);
	243
7a734e7d PA	244	/* bioscall.c */
	245	struct biosregs {
	246	union {
	247	struct {
	248	u32 edi;
	249	u32 esi;
	250	u32 ebp;
	251	u32 _esp;
	252	u32 ebx;
	253	u32 edx;
	254	u32 ecx;
	255	u32 eax;
	256	u32 _fsgs;
	257	u32 _dses;
	258	u32 eflags;
	259	};
	260	struct {
	261	u16 di, hdi;
	262	u16 si, hsi;
	263	u16 bp, hbp;
	264	u16 _sp, _hsp;
	265	u16 bx, hbx;
	266	u16 dx, hdx;
	267	u16 cx, hcx;
	268	u16 ax, hax;
	269	u16 gs, fs;
	270	u16 es, ds;
	271	u16 flags, hflags;
	272	};
	273	struct {
	274	u8 dil, dih, edi2, edi3;
	275	u8 sil, sih, esi2, esi3;
	276	u8 bpl, bph, ebp2, ebp3;
	277	u8 _spl, _sph, _esp2, _esp3;
	278	u8 bl, bh, ebx2, ebx3;
	279	u8 dl, dh, edx2, edx3;
	280	u8 cl, ch, ecx2, ecx3;
	281	u8 al, ah, eax2, eax3;
	282	};
	283	};
	284	};
	285	void intcall(u8 int_no, const struct biosregs ireg, struct biosregs oreg);
	286
62bd0337	287	/* cmdline.c */
f4ed2877 YL	288	int __cmdline_find_option(u32 cmdline_ptr, const char option, char buffer, int bufsize);
	289	int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option);
	290	static inline int cmdline_find_option(const char option, char buffer, int bufsize)
	291	{
	292	return __cmdline_find_option(boot_params.hdr.cmd_line_ptr, option, buffer, bufsize);
	293	}
	294
	295	static inline int cmdline_find_option_bool(const char *option)
	296	{
	297	return __cmdline_find_option_bool(boot_params.hdr.cmd_line_ptr, option);
	298	}
	299
62bd0337 PA	300
62bd0337 PA	301	/* cpu.c, cpucheck.c */
7b27718b JR	302	struct cpu_features {
	303	int level; /* Family, or 64 for x86-64 */
	304	int model;
	305	u32 flags[NCAPINTS];
	306	};
	307	extern struct cpu_features cpu;
62bd0337 PA	308	int check_cpu(int cpu_level_ptr, int req_level_ptr, u32 **err_flags_ptr);
	309	int validate_cpu(void);
	310
f4ed2877 YL	311	/* early_serial_console.c */
	312	extern int early_serial_base;
	313	void console_init(void);
	314
62bd0337 PA	315	/* edd.c */
	316	void query_edd(void);
	317
	318	/* header.S */
	319	void __attribute__((noreturn)) die(void);
	320
	321	/* mca.c */
	322	int query_mca(void);
	323
	324	/* memory.c */
	325	int detect_memory(void);
	326
	327	/* pm.c */
	328	void __attribute__((noreturn)) go_to_protected_mode(void);
	329
	330	/* pmjump.S */
	331	void __attribute__((noreturn))
	332	protected_mode_jump(u32 entrypoint, u32 bootparams);
	333
	334	/* printf.c */
	335	int sprintf(char buf, const char fmt, ...);
	336	int vsprintf(char buf, const char fmt, va_list args);
	337	int printf(const char *fmt, ...);
	338
7a734e7d PA	339	/* regs.c */
	340	void initregs(struct biosregs *regs);
	341
62bd0337 PA	342	/* string.c */
62bd0337 PA	343	int strcmp(const char str1, const char str2);
fa97bdf9	344	int strncmp(const char cs, const char ct, size_t count);
62bd0337 PA	345	size_t strnlen(const char *s, size_t maxlen);
62bd0337 PA	346	unsigned int atou(const char *s);
fa97bdf9	347	unsigned long long simple_strtoull(const char cp, char *endp, unsigned int base);
62bd0337 PA	348
	349	/* tty.c */
	350	void puts(const char *);
	351	void putchar(int);
	352	int getchar(void);
	353	void kbd_flush(void);
	354	int getchar_timeout(void);
	355
	356	/* video.c */
	357	void set_video(void);
	358
e44b7b75 PM	359	/* video-mode.c */
	360	int set_mode(u16 mode);
	361	int mode_defined(u16 mode);
	362	void probe_cards(int unsafe);
	363
62bd0337 PA	364	/* video-vesa.c */
	365	void vesa_store_edid(void);
	366
62bd0337 PA	367	#endif /* __ASSEMBLY__ */
	368
	369	#endif /* BOOT_BOOT_H */