/*      $NetBSD: boot.cpp,v 1.7 2008/04/28 20:23:20 martin Exp $        */

/*-
 * Copyright (c) 2001, 2004 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by UCHIYAMA Yasushi.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <hpcdefs.h>
#include <hpcboot.h>
#include <boot.h>

#include <load.h>
#include <load_elf.h>
#include <load_coff.h>
#undef DPRINTF // trash coff_machdep.h's DPRINTF

#include <console.h>

#include <file.h>

#ifdef ARM
#include <arm/arm_boot.h>
#endif
#ifdef MIPS
#include <mips/mips_boot.h>
#endif
#ifdef SHx
#include <sh3/sh_boot.h>
#endif

Boot *Boot::_instance = 0;

Boot &
Boot::Instance()
{

        if (_instance)
                return  *_instance;

        // register bootloader to menu system.
        // (will be invoked by boot button)
        struct HpcMenuInterface::boot_hook_args bha;
        bha.func        = hpcboot;
        bha.arg         = 0;
        HPC_MENU.register_boot_hook(bha);

#ifdef ARM
        _instance = new ARMBoot();
#endif
#ifdef MIPS
        _instance = new MIPSBoot();
#endif
#ifdef SHx
        _instance = new SHBoot();
#endif

        memset(&_instance->args, 0, sizeof(struct BootSetupArgs));
        _instance->args.consoleEnable = TRUE;

        return *_instance;
}

void
Boot::Destroy()
{

        if (_instance)
                delete _instance;
}

BOOL
Boot::setup()
{
        struct HpcMenuInterface::HpcMenuPreferences &pref = HPC_PREFERENCE;

        args.console = pref.boot_serial ? CONSOLE_SERIAL : CONSOLE_LCD;

        // file path.
        TCHAR *dir = pref.dir_user_path;
        if (wcsstr(dir, TEXT("http://")))
                args.file = FILE_HTTP;
        else
                args.file = wcschr(dir, TEXT('/')) ? FILE_UFS : FILE_FAT;
        wcscpy(args.fileRoot, dir);

        // file name.
        wcscpy(args.fileName, pref.kernel_user_file);
        args.loadmfs = (pref.rootfs == 2);
        if (args.loadmfs)
                wcscpy(args.mfsName, pref.rootfs_file);

        // debug options.
        args.loaderDebug        = FALSE;
        args.architectureDebug  = FALSE;
        args.memorymanagerDebug = FALSE;
        args.fileDebug          = FALSE;

        return TRUE;
}

Boot::Boot()
{
        _arch   = 0;
        _mem    = 0;
        _file   = 0;
        _loader = 0;
        // set default console
        _cons = Console::Instance();
}

Boot::~Boot()
{

        if (_file)
                delete _file;
        if (_loader)
                delete _loader;
}

BOOL
Boot::create()
{

        // Set this console (setuped by machine dependent part) as default.
        Console::changeConsole(*_cons);

        // File manager.
        _file = new FileManager(_cons, args.file);
        _file->setDebug() = args.fileDebug;

        return TRUE;
}

BOOL
Boot::attachLoader()
{

        switch (Loader::objectFormat(*_file)) {
        case LOADER_ELF:
                _loader = new ElfLoader(_cons, _mem);
                break;
        case LOADER_COFF:
                _loader = new CoffLoader(_cons, _mem);
                break;
        default:
                DPRINTF((TEXT("unknown file format.\n")));
                return FALSE;
        }

        return TRUE;
}