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boot.cpp revision 1.4 
      1 /*	$NetBSD: boot.cpp,v 1.4 2004/08/06 18:33:09 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <hpcdefs.h>
     40 #include <hpcboot.h>
     41 #include <boot.h>
     42 
     43 #include <load.h>
     44 #include <load_elf.h>
     45 #include <load_coff.h>
     46 #undef DPRINTF // trash coff_machdep.h's DPRINTF
     47 
     48 #include <console.h>
     49 
     50 #include <file.h>
     51 
     52 #ifdef ARM
     53 #include <arm/arm_boot.h>
     54 #endif
     55 #ifdef MIPS
     56 #include <mips/mips_boot.h>
     57 #endif
     58 #ifdef SHx
     59 #include <sh3/sh_boot.h>
     60 #endif
     61 
     62 Boot *Boot::_instance = 0;
     63 
     64 Boot &
     65 Boot::Instance()
     66 {
     67 
     68 	if (_instance)
     69 		return  *_instance;
     70 
     71 	// register bootloader to menu system.
     72 	// (will be invoked by boot button)
     73 	struct HpcMenuInterface::boot_hook_args bha;
     74 	bha.func	= hpcboot;
     75 	bha.arg		= 0;
     76 	HPC_MENU.register_boot_hook(bha);
     77 
     78 #ifdef ARM
     79 	_instance = new ARMBoot();
     80 #endif
     81 #ifdef MIPS
     82 	_instance = new MIPSBoot();
     83 #endif
     84 #ifdef SHx
     85 	_instance = new SHBoot();
     86 #endif
     87 
     88 	memset(&_instance->args, 0, sizeof(struct BootSetupArgs));
     89 	_instance->args.consoleEnable = TRUE;
     90 
     91 	return *_instance;
     92 }
     93 
     94 void
     95 Boot::Destroy()
     96 {
     97 
     98 	if (_instance)
     99 		delete _instance;
    100 }
    101 
    102 BOOL
    103 Boot::setup()
    104 {
    105 	struct HpcMenuInterface::HpcMenuPreferences &pref = HPC_PREFERENCE;
    106 
    107 	args.console = pref.boot_serial ? CONSOLE_SERIAL : CONSOLE_LCD;
    108 
    109 	// file path.
    110 	TCHAR *dir = pref.dir_user_path;
    111 	if (wcsstr(dir, TEXT("http://")))
    112 		args.file = FILE_HTTP;
    113 	else
    114 		args.file = wcschr(dir, TEXT('/')) ? FILE_UFS : FILE_FAT;
    115 	wcscpy(args.fileRoot, dir);
    116 
    117 	// file name.
    118 	wcscpy(args.fileName, pref.kernel_user_file);
    119 	args.loadmfs = (pref.rootfs == 2);
    120 	if (args.loadmfs)
    121 		wcscpy(args.mfsName, pref.rootfs_file);
    122 
    123 	// debug options.
    124 	args.loaderDebug	= FALSE;
    125 	args.architectureDebug	= FALSE;
    126 	args.memorymanagerDebug	= FALSE;
    127 	args.fileDebug		= FALSE;
    128 
    129 	return TRUE;
    130 }
    131 
    132 Boot::Boot()
    133 {
    134 	_arch	= 0;
    135 	_mem	= 0;
    136 	_file	= 0;
    137 	_loader	= 0;
    138 	// set default console
    139 	_cons = Console::Instance();
    140 }
    141 
    142 Boot::~Boot()
    143 {
    144 
    145 	if (_file)
    146 		delete _file;
    147 	if (_loader)
    148 		delete _loader;
    149 }
    150 
    151 BOOL
    152 Boot::create()
    153 {
    154 	// File manager.
    155 	_file = new FileManager(_cons, args.file);
    156 	_file->setDebug() = args.fileDebug;
    157 
    158 	return TRUE;
    159 }
    160 
    161 BOOL
    162 Boot::attachLoader()
    163 {
    164 
    165 	switch (Loader::objectFormat(*_file)) {
    166 	case LOADER_ELF:
    167 		_loader = new ElfLoader(_cons, _mem);
    168 		break;
    169 	case LOADER_COFF:
    170 		_loader = new CoffLoader(_cons, _mem);
    171 		break;
    172 	default:
    173 		DPRINTF((TEXT("unknown file format.\n")));
    174 		return FALSE;
    175 	}
    176 
    177 	return TRUE;
    178 }
    179