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annotate packages/redboot/current/include/redboot.h @ 184:022f1e506033

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Merge from eCos master repository on 2001-10-02-17:59:22-BST
author jlarmour
date Tue, 02 Oct 2001 18:28:24 +0000
parents 9160a8005d76
children 9dd39c51f7a7
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1 //==========================================================================
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2 //
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3 // redboot.h
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4 //
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5 // Standard interfaces for RedBoot
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): gthomas
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35 // Contributors: gthomas
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36 // Date: 2000-07-14
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37 // Purpose:
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38 // Description:
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39 //
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40 // This code is part of RedBoot (tm).
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //==========================================================================
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45
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46 #ifndef _REDBOOT_H_
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47 #define _REDBOOT_H_
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48
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49 #include <pkgconf/redboot.h>
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50 #include <pkgconf/hal.h>
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51 #include <cyg/hal/hal_if.h>
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52 #include <cyg/hal/hal_tables.h>
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53 #include <cyg/infra/diag.h>
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54 #include <string.h>
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55
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56 #ifdef CYGPKG_REDBOOT_NETWORKING
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57 #include <net/net.h>
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58 #include <net/tftp_support.h>
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59 #include <net/bootp.h>
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60 // Determine an IP address for this node, using BOOTP
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61 extern int __bootp_find_local_ip(bootp_header_t *info);
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62 #endif
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63
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64 #ifdef DEFINE_VARS
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65 #define EXTERN
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66 #else
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67 #define EXTERN extern
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68 #endif
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69
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70 // Global variables
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71 EXTERN int argc;
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72 #define MAX_ARGV 16
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73 EXTERN char *argv[MAX_ARGV];
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74 EXTERN unsigned char *ram_start, *ram_end;
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75 EXTERN unsigned char *user_ram_start, *user_ram_end;
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76 EXTERN unsigned char *workspace_start, *workspace_end;
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77 EXTERN unsigned long workspace_size;
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78 EXTERN unsigned long *entry_address;
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79
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80 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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81 EXTERN bool console_selected;
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82 #endif
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83 EXTERN bool console_echo;
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84 EXTERN bool gdb_active;
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85
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86 #ifdef CYGPKG_REDBOOT_NETWORKING
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87 EXTERN bool have_net, use_bootp;
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88 EXTERN bootp_header_t my_bootp_info;
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89 EXTERN int gdb_port;
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90 #endif
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91
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92 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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93 EXTERN unsigned char *script;
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94 EXTERN int script_timeout;
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95 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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96 EXTERN int console_baud_rate;
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97 #endif
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98 #endif
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99
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100 // Prototypes
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101 typedef int _printf_fun(const char *fmt, ...);
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102 externC int strcasecmp(const char *s1, const char *s2);
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103 externC int strncasecmp(const char *s1, const char *s2, size_t len);
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104
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105 externC void mon_write_char(char c);
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106 externC bool verify_action(char *fmt, ...);
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107 //void dump_buf(void *, CYG_ADDRWORD);
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108 //void dump_buf_with_offset(void *, CYG_ADDRWORD, void *);
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109 //void vdump_buf_with_offset(_printf_fun *pf, void *, CYG_ADDRWORD, void *);
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110
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111 // Read a single line of input from the console, possibly with timeout
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112 externC int _rb_gets(char *line, int len, int timeout);
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113 // Result codes from 'gets()'
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114 #define _GETS_TIMEOUT -1
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115 #define _GETS_CTRLC -2
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116 #define _GETS_GDB 0
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117 #define _GETS_OK 1
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118
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119 // "console" selection
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120 externC int start_console(void);
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121 externC void end_console(int old_console);
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122
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123 // CRC support
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124 unsigned short crc16(unsigned char *buf, int len);
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125 unsigned long crc32(unsigned char *buf, int len);
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126
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127 #ifdef CYGPKG_COMPRESS_ZLIB
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128 // Decompression support
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129 typedef struct _pipe {
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130 unsigned char* in_buf; // only changed by producer
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131 int in_avail; // only changed by producer
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132 unsigned char* out_buf; // only changed by consumer (init by producer)
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133 int out_size; // only changed by consumer (init by producer)
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134 const char* msg; // message from consumer
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135 void* priv; // handler's data
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136 } _pipe_t;
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137
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138 typedef int _decompress_fun_init(_pipe_t*);
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139 typedef int _decompress_fun_inflate(_pipe_t*);
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140 typedef int _decompress_fun_close(_pipe_t*, int);
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141
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142 externC _decompress_fun_init* _dc_init;
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143 externC _decompress_fun_inflate* _dc_inflate;
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144 externC _decompress_fun_close* _dc_close;
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145 #endif // CYGPKG_COMPRESS_ZLIB
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146
115
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147 // CLI support functions
182
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148 externC bool parse_num(char *s, unsigned long *val, char **es, char *delim);
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149 externC bool parse_bool(char *s, bool *val);
115
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150
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151 typedef void cmd_fun(int argc, char *argv[]);
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152 struct cmd {
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153 char *str;
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154 char *help;
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155 char *usage;
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156 cmd_fun *fun;
121
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157 } CYG_HAL_TABLE_TYPE;
182
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158 externC struct cmd *cmd_search(struct cmd *tab, struct cmd *tabend, char *arg);
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159 externC void cmd_usage(struct cmd *tab, struct cmd *tabend, char *prefix);
115
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160 #define RedBoot_cmd(_s_,_h_,_u_,_f_) cmd_entry(_s_,_h_,_u_,_f_,RedBoot_commands)
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161 #define _cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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162 cmd_fun _f_; \
117
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163 struct cmd _cmd_tab_##_f_ CYG_HAL_TABLE_QUALIFIED_ENTRY(_n_,_f_) = {_s_, _h_, _u_, _f_};
115
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164 #define cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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165 extern _cmd_entry(_s_,_h_,_u_,_f_,_n_)
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166 #define local_cmd_entry(_s_,_h_,_u_,_f_,_n_) \
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167 static _cmd_entry(_s_,_h_,_u_,_f_,_n_)
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168
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169 // Initialization functions
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170 #define RedBoot_INIT_FIRST 0000
154
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171 // Specify a 3 digit numeric value for proper prioritizing
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172 #define RedBoot_INIT_PRIO(_n_) 1##_n_
115
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173 #define RedBoot_INIT_LAST 9999
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174 typedef void void_fun(void);
126
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175 typedef void_fun *void_fun_ptr;
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176 struct init_tab_entry {
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177 void_fun_ptr fun;
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178 } CYG_HAL_TABLE_TYPE;
115
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179 #define _RedBoot_init(_f_,_p_) \
154
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180 struct init_tab_entry _init_tab_##_p_##_f_ \
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181 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_inits,_p_##_f_) = { _f_ };
115
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182 #define RedBoot_init(_f_,_p_) _RedBoot_init(_f_,_p_)
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183
151
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184 // Main loop [idle] call-back functions
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185 #define RedBoot_IDLE_FIRST 0000
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186 #define RedBoot_IDLE_BEFORE_NETIO 3000
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187 #define RedBoot_IDLE_NETIO 5000
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188 #define RedBoot_IDLE_AFTER_NETIO 7000
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189 #define RedBoot_IDLE_LAST 9999
156
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190 typedef void idle_fun(bool);
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191 typedef idle_fun *idle_fun_ptr;
151
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192 struct idle_tab_entry {
156
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193 idle_fun_ptr fun;
151
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194 } CYG_HAL_TABLE_TYPE;
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195 #define _RedBoot_idle(_f_,_p_) \
156
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196 struct idle_tab_entry _idle_tab_##_p_##_f_ \
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197 CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_idle,_p_##_f_) = { _f_ };
151
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198 #define RedBoot_idle(_f_,_p_) _RedBoot_idle(_f_,_p_)
156
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199
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200 // This function called when changing idle/not - mostly used by I/O
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201 // to support idle when timeout, etc.
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202 void do_idle(bool state);
151
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203
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204 // Option processing support
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205
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206 struct option_info {
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207 char flag;
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208 bool takes_arg;
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209 int arg_type;
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210 void **arg;
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211 bool *arg_set;
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212 char *name;
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213 };
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214
117
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215 #define OPTION_ARG_TYPE_NUM 0 // Numeric data
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216 #define OPTION_ARG_TYPE_STR 1 // Generic string
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217 #define OPTION_ARG_TYPE_FLG 2 // Flag only
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218
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219 // Command line parsing
183
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220 externC struct cmd *parse(char **line, int *argc, char **argv);
130
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221
182
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222 externC void init_opts(struct option_info *opts, char flag, bool takes_arg,
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223 int arg_type, void **arg, bool *arg_set, char *name);
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224 externC bool scan_opts(int argc, char *argv[], int first,
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225 struct option_info *opts, int num_opts,
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226 void **def_arg, int def_arg_type, char *def_descr);
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227
182
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228 externC int redboot_getc(void);
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229 externC void redboot_getc_init(int (*fun)(char *, int, int *), int verbose);
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230 externC void redboot_getc_rewind(void);
124
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231
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232 #define BUF_SIZE 256
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233 typedef struct {
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234 int (*fun)(char *, int len, int *err);
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235 unsigned char buf[BUF_SIZE];
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236 unsigned char *bufp;
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237 int avail, len, err;
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238 int verbose, tick;
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239 } getc_info_t;
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240
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241
165
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242 #ifdef CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS
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243 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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244 (CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS+CYGNUM_HAL_VIRTUAL_VECTOR_AUX_CHANNELS)
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245 #else
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246 #define CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS \
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247 CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS
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248 #endif
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249
184
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250 #ifdef CYGPKG_REDBOOT_NETWORKING
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251 //-----------------------------------------------------------------------------
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252 // DNS wrapper
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253 #ifdef CYGPKG_REDBOOT_NETWORKING_DNS
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254
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255 // I would really like if we could just pull in cyg/ns/dns/dns.h, but
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256 // that would require adding dummy <network.h> and <netinet/in.h> files.
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257
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258 // Host name / IP mapping
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259 struct hostent {
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260 char *h_name; /* official name of host */
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261 char **h_aliases; /* alias list */
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262 int h_addrtype; /* host address type */
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263 int h_length; /* length of address */
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264 char **h_addr_list; /* list of addresses */
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265 };
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266 #define h_addr h_addr_list[0] /* for backward compatibility */
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267
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268 externC int redboot_dns_res_init(void);
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269 externC struct hostent *gethostbyname(const char *host);
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270
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271 // Error reporting
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272 externC int h_errno;
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273
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274 #define DNS_SUCCESS 0
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275 #define HOST_NOT_FOUND 1
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276 #define TRY_AGAIN 2
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277 #define NO_RECOVERY 3
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278 #define NO_DATA 4
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279
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280 static inline bool
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281 _gethostbyname(const char* name, in_addr_t* host)
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282 {
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283 struct hostent* hent = gethostbyname(name);
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284 if (hent) {
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285 memcpy(host, hent->h_addr_list[0], sizeof(in_addr_t));
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286 return true;
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287 }
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288 // Fall back to inet_aton - gethostbyname may already have tried
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289 // it, but we can't know for sure (the DNS IP may not have been
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290 // valid, preventing the inet_aton).
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291 return inet_aton(name, host);
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292 }
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293 #else
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294 static inline bool
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295 _gethostbyname(const char* name, in_addr_t* host)
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296 {
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297 return inet_aton(name, host);
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298 }
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299 #endif // CYGPKG_REDBOOT_NETWORKING_DNS
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300 #endif // CYGPKG_REDBOOT_NETWORKING
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301
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302 //-----------------------------------------------------------------------------
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303 // String functions. Some of these are duplicates of the same functions in
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304 // the I18N package.
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305
115
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306 // Validate a hex character
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307 __inline__ static bool
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308 _is_hex(char c)
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309 {
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310 return (((c >= '0') && (c <= '9')) ||
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311 ((c >= 'A') && (c <= 'F')) ||
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312 ((c >= 'a') && (c <= 'f')));
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313 }
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314
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315 // Convert a single hex nibble
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316 __inline__ static int
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317 _from_hex(char c)
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318 {
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319 int ret = 0;
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320
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321 if ((c >= '0') && (c <= '9')) {
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322 ret = (c - '0');
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323 } else if ((c >= 'a') && (c <= 'f')) {
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324 ret = (c - 'a' + 0x0a);
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325 } else if ((c >= 'A') && (c <= 'F')) {
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326 ret = (c - 'A' + 0x0A);
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327 }
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328 return ret;
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329 }
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330
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331 // Convert a character to lower case
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332 __inline__ static char
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333 _tolower(char c)
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334 {
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335 if ((c >= 'A') && (c <= 'Z')) {
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336 c = (c - 'A') + 'a';
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337 }
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338 return c;
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339 }
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340
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341 // Validate alpha
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342 __inline__ static bool
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343 isalpha(int c)
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344 {
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345 return (((c >= 'a') && (c <= 'z')) ||
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346 ((c >= 'A') && (c <= 'Z')));
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347 }
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348
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349 // Validate digit
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350 __inline__ static bool
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351 isdigit(int c)
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352 {
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353 return ((c >= '0') && (c <= '9'));
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354 }
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355
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356 // Validate alphanum
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357 __inline__ static bool
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358 isalnum(int c)
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359 {
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360 return (isalpha(c) || isdigit(c));
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361 }
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362
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363 #endif // _REDBOOT_H_