bootconfig.h

em86xx 完整启动程序,支持网络下载与串通下载

/*****************************************
 Copyright (c) 2002-2004
 Sigma Designs, Inc. All Rights Reserved
 Proprietary and Confidential
 *****************************************/

/* This file is part of the EM86XX boot loader */

/*
 * bootconfig.c
 */

#ifndef __BOOTLOADER_BOOTCONFIG_H
#define __BOOTLOADER_BOOTCONFIG_H

// configuration data structure

#define BOOTCONFIG_HEADSIGN     (('B') | ('O' << 8) | ('O' << 16) | ('T' << 24))
#define BOOTCONFIG_BODYSIGN     (('C') | ('O' << 8) | ('N' << 16) | ('F' << 24))

#define BOOTCONFIG_MAJOR        0x01
#define BOOTCONFIG_MINOR        0x00

#define BOOTCONFIG_KERNELPARAMLEN   256

#define BOOTCONFIG_PATHLEN      24
#define DEFAULT_LOADER_FILENAME "loader.bin"
#define DEFAULT_ROMFS_FILENAME  "romfs.bin"
#define DEFAULT_KERNEL_FILENAME "linux.bin"
#define DEFAULT_KERNELGZ_FILENAME "linux.bin.gz"
#define DEFAULT_MISC_FILENAME "misc.bin"
#define DEFAULT_INST_FILENAME "install.bin"
#define DEFAULT_INITRD_FILENAME "initrd.bin"
#define DEFAULT_KERNELFS_FILENAME "linux.bin"

#ifdef CONFIG_ENABLE_2NDBOOT
#define DEFAULT_2NDLOADER_FILENAME "2ndloader.bin"
#endif

#ifdef CONFIG_ENABLE_IRQHANDLER
#define DEFAULT_IRQHANDLER_FILENAME "irqhandler.bin"
#endif

#ifdef CONFIG_ENABLE_BITMAPS
#define DEFAULT_IMAGE_FILENAME "bitmap.bin"
#endif

#ifdef CONFIG_ENABLE_UCODES
#define DEFAULT_UCODE_FILENAME "ucode.bin"
#endif

#ifdef CONFIG_ENABLE_USERPREF
#define DEFAULT_USERPREF_FILENAME "userpref.bin"
#endif

#ifdef CONFIG_ENABLE_VSYNCPARAM
#define DEFAULT_VSYNCPARAM_FILENAME "vsyncparam.bin"
#endif

#ifdef CONFIG_ENABLE_DVI
#define DEFAULT_DVI_FILENAME "dvi.bin"
#endif

enum { BOOTNET_NONE, BOOTNET_STATIC, BOOTNET_BOOTP, BOOTNET_DHCP };

typedef struct {
    unsigned short major_version;   // major version of configuration
    unsigned short minor_version;   // minor version of configuration
    unsigned int checksum;          // checksum : BOOTCONFIG_BODYSIGN

    // kernel parameter
    char kernel_cmdline[BOOTCONFIG_KERNELPARAMLEN];

    // network configuration
    unsigned char macaddr[6];       // hardware address
    unsigned short protocol;        // BOOTNET_xxx
    unsigned int ipaddr;            // IP address
    unsigned int netmask;           // network mask
    unsigned int gateway;           // gateway
    unsigned int server;            // server for download
    unsigned int dns;               // DNS server
    unsigned char domain[24];       // domain name
    unsigned char loader_filename[BOOTCONFIG_PATHLEN];
    unsigned char romfs_filename[BOOTCONFIG_PATHLEN];
    unsigned char kernel_filename[BOOTCONFIG_PATHLEN];
    unsigned char misc_filename[BOOTCONFIG_PATHLEN];
    unsigned char inst_filename[BOOTCONFIG_PATHLEN];
    unsigned char initrd_filename[BOOTCONFIG_PATHLEN];
    unsigned char kernelfs_filename[BOOTCONFIG_PATHLEN];
#ifdef CONFIG_ENABLE_2NDBOOT
    unsigned char scnd_loader_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_IRQHANDLER
    unsigned char irqhandler_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_BITMAPS
    unsigned char bitmap_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_UCODES
    unsigned char ucode_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_USERPREF
    unsigned char userpref_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_VSYNCPARAM
    unsigned char vsyncparam_filename[BOOTCONFIG_PATHLEN];
#endif
#ifdef CONFIG_ENABLE_DVI
    unsigned char dvi_filename[BOOTCONFIG_PATHLEN];
#endif
} bootconfig_1_0_t;

typedef bootconfig_1_0_t bootconfig_t;

// global variables

extern bootconfig_t g_bootconfig;

// function prototypes

int bootconfig_load(int index);
int bootconfig_save(void);
int bootconfig_lastsaved(int *idx);

#endif