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boot.cpp revision 1.6.76.1 
      1 /*	$NetBSD: boot.cpp,v 1.6.76.1 2008/05/18 12:31:58 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001, 2004 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <hpcdefs.h>
     33 #include <hpcboot.h>
     34 #include <boot.h>
     35 
     36 #include <load.h>
     37 #include <load_elf.h>
     38 #include <load_coff.h>
     39 #undef DPRINTF // trash coff_machdep.h's DPRINTF
     40 
     41 #include <console.h>
     42 
     43 #include <file.h>
     44 
     45 #ifdef ARM
     46 #include <arm/arm_boot.h>
     47 #endif
     48 #ifdef MIPS
     49 #include <mips/mips_boot.h>
     50 #endif
     51 #ifdef SHx
     52 #include <sh3/sh_boot.h>
     53 #endif
     54 
     55 Boot *Boot::_instance = 0;
     56 
     57 Boot &
     58 Boot::Instance()
     59 {
     60 
     61 	if (_instance)
     62 		return  *_instance;
     63 
     64 	// register bootloader to menu system.
     65 	// (will be invoked by boot button)
     66 	struct HpcMenuInterface::boot_hook_args bha;
     67 	bha.func	= hpcboot;
     68 	bha.arg		= 0;
     69 	HPC_MENU.register_boot_hook(bha);
     70 
     71 #ifdef ARM
     72 	_instance = new ARMBoot();
     73 #endif
     74 #ifdef MIPS
     75 	_instance = new MIPSBoot();
     76 #endif
     77 #ifdef SHx
     78 	_instance = new SHBoot();
     79 #endif
     80 
     81 	memset(&_instance->args, 0, sizeof(struct BootSetupArgs));
     82 	_instance->args.consoleEnable = TRUE;
     83 
     84 	return *_instance;
     85 }
     86 
     87 void
     88 Boot::Destroy()
     89 {
     90 
     91 	if (_instance)
     92 		delete _instance;
     93 }
     94 
     95 BOOL
     96 Boot::setup()
     97 {
     98 	struct HpcMenuInterface::HpcMenuPreferences &pref = HPC_PREFERENCE;
     99 
    100 	args.console = pref.boot_serial ? CONSOLE_SERIAL : CONSOLE_LCD;
    101 
    102 	// file path.
    103 	TCHAR *dir = pref.dir_user_path;
    104 	if (wcsstr(dir, TEXT("http://")))
    105 		args.file = FILE_HTTP;
    106 	else
    107 		args.file = wcschr(dir, TEXT('/')) ? FILE_UFS : FILE_FAT;
    108 	wcscpy(args.fileRoot, dir);
    109 
    110 	// file name.
    111 	wcscpy(args.fileName, pref.kernel_user_file);
    112 	args.loadmfs = (pref.rootfs == 2);
    113 	if (args.loadmfs)
    114 		wcscpy(args.mfsName, pref.rootfs_file);
    115 
    116 	// debug options.
    117 	args.loaderDebug	= FALSE;
    118 	args.architectureDebug	= FALSE;
    119 	args.memorymanagerDebug	= FALSE;
    120 	args.fileDebug		= FALSE;
    121 
    122 	return TRUE;
    123 }
    124 
    125 Boot::Boot()
    126 {
    127 	_arch	= 0;
    128 	_mem	= 0;
    129 	_file	= 0;
    130 	_loader	= 0;
    131 	// set default console
    132 	_cons = Console::Instance();
    133 }
    134 
    135 Boot::~Boot()
    136 {
    137 
    138 	if (_file)
    139 		delete _file;
    140 	if (_loader)
    141 		delete _loader;
    142 }
    143 
    144 BOOL
    145 Boot::create()
    146 {
    147 
    148 	// Set this console (setuped by machine dependent part) as default.
    149 	Console::changeConsole(*_cons);
    150 
    151 	// File manager.
    152 	_file = new FileManager(_cons, args.file);
    153 	_file->setDebug() = args.fileDebug;
    154 
    155 	return TRUE;
    156 }
    157 
    158 BOOL
    159 Boot::attachLoader()
    160 {
    161 
    162 	switch (Loader::objectFormat(*_file)) {
    163 	case LOADER_ELF:
    164 		_loader = new ElfLoader(_cons, _mem);
    165 		break;
    166 	case LOADER_COFF:
    167 		_loader = new CoffLoader(_cons, _mem);
    168 		break;
    169 	default:
    170 		DPRINTF((TEXT("unknown file format.\n")));
    171 		return FALSE;
    172 	}
    173 
    174 	return TRUE;
    175 }
    176