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/****************************************************************************
*
* BIOS emulator and interface
* to Realmode X86 Emulator Library
*
* Copyright (C) 2007 Freescale Semiconductor, Inc.
* Jason Jin <Jason.jin@freescale.com>
*
* Copyright (C) 1996-1999 SciTech Software, Inc.
*
* ========================================================================
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of the authors not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The authors makes no
* representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* ========================================================================
*
* Language: ANSI C
* Environment: Any
* Developer: Kendall Bennett
*
* Description: Internal header file for the BIOS emulator library.
*
* Jason ported this file to u-boot, Added some architecture
* related Macro.
*
****************************************************************************/
#ifndef __BIOSEMUI_H
#define __BIOSEMUI_H
#include "biosemu.h"
#include <asm/io.h>
/*---------------------- Macros and type definitions ----------------------*/
#ifdef CONFIG_X86EMU_DEBUG
#define DB(x) x
#else
#define DB(x) do{}while(0);
#endif
#define BIOS_SEG 0xfff0
extern X86EMU_sysEnv _X86EMU_env;
#define M _X86EMU_env
/* Macros to read and write values to x86 emulator memory. Memory is always
* considered to be little endian, so we use macros to do endian swapping
* where necessary.
*/
#ifdef __BIG_ENDIAN__
#define readb_le(base) *((u8*)(base))
#define readw_le(base) ((u16)readb_le(base) | ((u16)readb_le((base) + 1) << 8))
#define readl_le(base) ((u32)readb_le((base) + 0) | ((u32)readb_le((base) + 1) << 8) | \
((u32)readb_le((base) + 2) << 16) | ((u32)readb_le((base) + 3) << 24))
#define writeb_le(base, v) *((u8*)(base)) = (v)
#define writew_le(base, v) writeb_le(base + 0, (v >> 0) & 0xff), \
writeb_le(base + 1, (v >> 8) & 0xff)
#define writel_le(base, v) writeb_le(base + 0, (v >> 0) & 0xff), \
writeb_le(base + 1, (v >> 8) & 0xff), \
writeb_le(base + 2, (v >> 16) & 0xff), \
writeb_le(base + 3, (v >> 24) & 0xff)
#else
#define readb_le(base) *((u8*)(base))
#define readw_le(base) *((u16*)(base))
#define readl_le(base) *((u32*)(base))
#define writeb_le(base, v) *((u8*)(base)) = (v)
#define writew_le(base, v) *((u16*)(base)) = (v)
#define writel_le(base, v) *((u32*)(base)) = (v)
#endif
/****************************************************************************
REMARKS:
Function codes passed to the emulated I/O port functions to determine the
type of operation to perform.
****************************************************************************/
typedef enum {
REG_READ_BYTE = 0,
REG_READ_WORD = 1,
REG_READ_DWORD = 2,
REG_WRITE_BYTE = 3,
REG_WRITE_WORD = 4,
REG_WRITE_DWORD = 5
} RegisterFlags;
/****************************************************************************
REMARKS:
Function codes passed to the emulated I/O port functions to determine the
type of operation to perform.
****************************************************************************/
typedef enum {
PORT_BYTE = 1,
PORT_WORD = 2,
PORT_DWORD = 3,
} PortInfoFlags;
/****************************************************************************
REMARKS:
Data structure used to describe the details for the BIOS emulator system
environment as used by the X86 emulator library.
HEADER:
biosemu.h
MEMBERS:
type - Type of port access (1 = byte, 2 = word, 3 = dword)
defVal - Default power on value
finalVal - Final value
****************************************************************************/
typedef struct {
u8 type;
u32 defVal;
u32 finalVal;
} BE_portInfo;
#define PM_inpb(port) inb(port+VIDEO_IO_OFFSET)
#define PM_inpw(port) inw(port+VIDEO_IO_OFFSET)
#define PM_inpd(port) inl(port+VIDEO_IO_OFFSET)
#define PM_outpb(port,val) outb(val,port+VIDEO_IO_OFFSET)
#define PM_outpw(port,val) outw(val,port+VIDEO_IO_OFFSET)
#define PM_outpd(port,val) outl(val,port+VIDEO_IO_OFFSET)
#define LOG_inpb(port) PM_inpb(port)
#define LOG_inpw(port) PM_inpw(port)
#define LOG_inpd(port) PM_inpd(port)
#define LOG_outpb(port,val) PM_outpb(port,val)
#define LOG_outpw(port,val) PM_outpw(port,val)
#define LOG_outpd(port,val) PM_outpd(port,val)
/*-------------------------- Function Prototypes --------------------------*/
/* bios.c */
void _BE_bios_init(u32 * intrTab);
void _BE_setup_funcs(void);
/* besys.c */
#define DEBUG_IO() (M.x86.debug & DEBUG_IO_TRACE_F)
u8 X86API BE_rdb(u32 addr);
u16 X86API BE_rdw(u32 addr);
u32 X86API BE_rdl(u32 addr);
void X86API BE_wrb(u32 addr, u8 val);
void X86API BE_wrw(u32 addr, u16 val);
void X86API BE_wrl(u32 addr, u32 val);
u8 X86API BE_inb(X86EMU_pioAddr port);
u16 X86API BE_inw(X86EMU_pioAddr port);
u32 X86API BE_inl(X86EMU_pioAddr port);
void X86API BE_outb(X86EMU_pioAddr port, u8 val);
void X86API BE_outw(X86EMU_pioAddr port, u16 val);
void X86API BE_outl(X86EMU_pioAddr port, u32 val);
#endif
/* __BIOSEMUI_H */
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