/**************************************************************************** * * 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 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 */