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annotate packages/redboot/current/src/main.c @ 182:f62680ef1804

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Merge from eCos master repository on 2001-09-07-06:43:02-BST
author jlarmour
date Wed, 12 Sep 2001 00:59:17 +0000
parents 38892b97b685
children 9160a8005d76
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1 //==========================================================================
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2 //
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3 // main.c
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4 //
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5 // RedBoot main routine
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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 #define DEFINE_VARS
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47 #include <redboot.h>
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48 #include <cyg/hal/hal_arch.h>
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49 #include <cyg/hal/hal_intr.h>
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50 #include <cyg/hal/hal_if.h>
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51 #include <cyg/hal/hal_cache.h>
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52 #include CYGHWR_MEMORY_LAYOUT_H
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53
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54 #include <cyg/hal/hal_tables.h>
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55
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56 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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57 #ifdef CYGBLD_HAL_PLATFORM_STUB_H
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58 #include CYGBLD_HAL_PLATFORM_STUB_H
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59 #else
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60 #include <cyg/hal/plf_stub.h>
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61 #endif
162
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62 #endif
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63
132
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64 // Builtin Self Test (BIST)
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65 externC void bist(void);
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66
162
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67 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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68 // GDB interfaces
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69 extern void breakpoint(void);
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70 #endif
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71
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72 // CLI command processing (defined in this file)
138
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73 RedBoot_cmd("version",
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74 "Display RedBoot version information",
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75 "",
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76 do_version
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77 );
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78 RedBoot_cmd("help",
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79 "Help about help?",
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80 "[<topic>]",
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81 do_help
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82 );
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83 RedBoot_cmd("go",
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84 "Execute code at a location",
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85 "[-w <timeout>] [entry]",
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86 do_go
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87 );
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88 RedBoot_cmd("dump",
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89 "Display (hex dump) a range of memory",
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90 "-b <location> [-l <length>]",
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91 do_dump
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92 );
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93 RedBoot_cmd("cksum",
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94 "Compute a 32bit checksum [POSIX algorithm] for a range of memory",
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95 "-b <location> -l <length>",
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96 do_cksum
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97 );
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98 RedBoot_cmd("cache",
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99 "Manage machine caches",
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100 "[ON | OFF]",
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101 do_caches
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102 );
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103 #ifdef HAL_PLATFORM_RESET
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104 RedBoot_cmd("reset",
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105 "Reset the system",
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106 "",
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107 do_reset
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108 );
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109 #endif
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110 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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111 RedBoot_cmd("baudrate",
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112 "Set/Query the system console baud rate",
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113 "[-b <rate>]",
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114 do_baud_rate
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115 );
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116 #endif
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117
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118 // Define table boundaries
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119 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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120 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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121 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
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122
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123 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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124 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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125 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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126
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127 CYG_HAL_TABLE_BEGIN( __RedBoot_IDLE_TAB__, RedBoot_idle );
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128 CYG_HAL_TABLE_END( __RedBoot_IDLE_TAB_END__, RedBoot_idle );
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129 extern struct idle_tab_entry __RedBoot_IDLE_TAB__[], __RedBoot_IDLE_TAB_END__;
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130
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131 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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132 extern void HAL_ARCH_PROGRAM_NEW_STACK(void *fun);
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133 #endif
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134
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135 #ifdef CYGSEM_REDBOOT_FLASH_ALIASES
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136 externC void expand_aliases(char *line, int len);
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137 #endif
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138
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139 void
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140 do_version(int argc, char *argv[])
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141 {
145
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142 extern char RedBoot_version[];
171
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143 #ifdef CYGPKG_IO_FLASH
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144 externC void _flash_info(void);
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145 #endif
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146
182
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147 diag_printf(RedBoot_version);
138
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148 #ifdef HAL_PLATFORM_CPU
182
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149 diag_printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
138
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150 #endif
182
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151 diag_printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
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152 diag_printf("RAM: %p-%p, %p-%p available\n",
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153 (void*)ram_start, (void*)ram_end,
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154 (void*)user_ram_start, (void *)user_ram_end);
171
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155 #ifdef CYGPKG_IO_FLASH
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156 _flash_info();
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157 #endif
156
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158 }
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159
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160 void
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161 do_idle(bool is_idle)
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162 {
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163 struct idle_tab_entry *idle_entry;
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164
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165 for (idle_entry = __RedBoot_IDLE_TAB__;
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166 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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167 (*idle_entry->fun)(is_idle);
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168 }
138
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169 }
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170
182
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171 // Wrapper used by diag_printf()
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172 static void
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173 _mon_write_char(char c, void **param)
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174 {
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175 mon_write_char(c);
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176 }
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177
115
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178 //
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179 // This is the main entry point for RedBoot
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180 //
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181 void
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182 cyg_start(void)
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183 {
143
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184 int res = 0;
115
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185 bool prompt = true;
143
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186 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
115
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187 struct cmd *cmd;
156
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188 int cur;
126
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189 struct init_tab_entry *init_entry;
156
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190
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191 // Make sure the channels are properly initialized.
182
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192 diag_init_putc(_mon_write_char);
156
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193 hal_if_diag_init();
115
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194
156
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195 // Force console to output raw text - but remember the old setting
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196 // so it can be restored if interaction with a debugger is
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197 // required.
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198 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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199 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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200 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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201 console_selected = false;
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202 #endif
128
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203 console_echo = true;
159
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204 CYGACC_CALL_IF_DELAY_US((cyg_int32)2*100000);
115
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205
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206 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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207 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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208 #ifdef HAL_MEM_REAL_REGION_TOP
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209 {
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210 unsigned char *ram_end_tmp = ram_end;
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211 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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212 }
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213 #endif
156
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214 #ifdef CYGMEM_SECTION_heap1
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215 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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216 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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217 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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218 #else
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219 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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220 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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221 workspace_size = CYGMEM_REGION_ram_SIZE;
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222 #endif
115
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223
158
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224 if ( ram_end < workspace_end ) {
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225 // when *less* SDRAM is installed than the possible maximum,
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226 // but the heap1 region remains greater...
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227 workspace_end = ram_end;
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228 workspace_size = workspace_end - workspace_start;
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229 }
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230
132
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231 bist();
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232
126
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233 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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234 (*init_entry->fun)();
115
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235 }
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236
156
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237 #ifdef CYGPKG_COMPRESS_ZLIB
161
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238 #define ZLIB_COMPRESSION_OVERHEAD 0xB800
156
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239 #else
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240 #define ZLIB_COMPRESSION_OVERHEAD 0
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241 #endif
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242 user_ram_start = workspace_start + ZLIB_COMPRESSION_OVERHEAD;
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243 user_ram_end = workspace_end;
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244 do_version(0,0);
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245
159
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246 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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247 # ifdef CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT
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248 if (!script) {
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249 script = CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT;
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250 # ifndef CYGSEM_REDBOOT_FLASH_CONFIG
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251 script_timeout = CYGNUM_REDBOOT_BOOT_SCRIPT_DEFAULT_TIMEOUT;
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252 # endif
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253 }
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254 # endif
115
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255 if (script) {
159
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256 // Give the guy a chance to abort any boot script
115
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257 unsigned char *hold_script = script;
159
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258 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION;
182
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259 diag_printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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260 script_timeout_ms/1000, script_timeout_ms%1000);
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261 script = (unsigned char *)0;
156
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262 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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263 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
182
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264 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
158
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265 if (res >= _GETS_OK) {
182
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266 diag_printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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267 script_timeout_ms/1000, script_timeout_ms%1000);
143
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268 continue; // Ignore anything but ^C
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269 }
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270 if (res != _GETS_TIMEOUT) break;
151
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271 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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272 }
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273 if (res == _GETS_CTRLC) {
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274 script = (unsigned char *)0; // Disable script
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275 } else {
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276 script = hold_script; // Re-enable script
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277 }
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278 }
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279 #endif
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280
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281 while (true) {
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282 if (prompt) {
182
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283 diag_printf("RedBoot> ");
115
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284 prompt = false;
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285 }
182
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286 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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287 if (res == _GETS_TIMEOUT) {
115
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288 // No input arrived
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289 } else {
162
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290 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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291 if (res == _GETS_GDB) {
156
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292 int dbgchan;
161
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293 hal_virtual_comm_table_t *__chan;
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294 int i;
115
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295 // Special case of '$' - need to start GDB protocol
151
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296 gdb_active = true;
161
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297 // Mask interrupts on all channels
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298 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS; i++) {
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299 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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300 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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301 CYGACC_COMM_IF_CONTROL( *__chan, __COMMCTL_IRQ_DISABLE );
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302 }
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303
115
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304 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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305 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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306 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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307 #else
115
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308 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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309 #endif
156
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310 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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311 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
162
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312 } else
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313 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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314 {
160
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315 #ifdef CYGSEM_REDBOOT_FLASH_ALIASES
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316 expand_aliases(line, sizeof(line));
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317 #endif
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318 if (strlen(line) > 0) {
115
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319 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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320 (cmd->fun)(argc, argv);
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321 } else {
182
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322 diag_printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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323 }
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324 }
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325 prompt = true;
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326 }
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327 }
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328 }
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329 }
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330
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331 void
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332 do_caches(int argc, char *argv[])
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333 {
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334 unsigned long oldints;
161
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335 int dcache_on=0, icache_on=0;
151
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336
115
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337 if (argc == 2) {
182
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338 if (strcasecmp(argv[1], "on") == 0) {
115
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339 HAL_DISABLE_INTERRUPTS(oldints);
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340 HAL_ICACHE_ENABLE();
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341 HAL_DCACHE_ENABLE();
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342 HAL_RESTORE_INTERRUPTS(oldints);
182
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343 } else if (strcasecmp(argv[1], "off") == 0) {
115
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344 HAL_DISABLE_INTERRUPTS(oldints);
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345 HAL_DCACHE_SYNC();
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346 HAL_ICACHE_DISABLE();
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347 HAL_DCACHE_DISABLE();
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348 HAL_DCACHE_SYNC();
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349 HAL_ICACHE_INVALIDATE_ALL();
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350 HAL_DCACHE_INVALIDATE_ALL();
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351 HAL_RESTORE_INTERRUPTS(oldints);
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352 } else {
182
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353 diag_printf("Invalid cache mode: %s\n", argv[1]);
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354 }
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355 } else {
161
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356 #ifdef HAL_DCACHE_IS_ENABLED
159
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357 HAL_DCACHE_IS_ENABLED(dcache_on);
161
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358 #endif
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359 #ifdef HAL_ICACHE_IS_ENABLED
159
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360 HAL_ICACHE_IS_ENABLED(icache_on);
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361 #endif
182
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362 diag_printf("Data cache: %s, Instruction cache: %s\n",
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363 dcache_on?"On":"Off", icache_on?"On":"Off");
115
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364 }
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365 }
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366
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367
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368 void
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369 do_help(int argc, char *argv[])
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370 {
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371 struct cmd *cmd;
151
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372 char *which = (char *)0;
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373 bool show;
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374 int len = 0;
115
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375
151
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376 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
182
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377 diag_printf("Invalid argument\n");
151
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378 return;
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379 }
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380 if (which) {
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381 len = strlen(which);
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382 }
115
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383 cmd = __RedBoot_CMD_TAB__;
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384 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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385 show = true;
182
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386 if (which && (strncasecmp(which, cmd->str, len) != 0)) {
151
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387 show = false;
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388 }
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389 if (show) {
182
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390 diag_printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
151
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391 }
115
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392 cmd++;
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393 }
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394 return;
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395 }
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396
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397 void
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398 do_dump(int argc, char *argv[])
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399 {
130
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400 struct option_info opts[2];
115
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401 unsigned long base, len;
130
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402 bool base_set, len_set;
162
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403 static unsigned long _base, _len;
115
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404
130
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405 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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406 (void **)&base, (bool *)&base_set, "base address");
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407 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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408 (void **)&len, (bool *)&len_set, "length");
159
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409 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
130
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410 return;
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411 }
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412 if (!base_set) {
162
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413 if (_base == 0) {
182
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414 diag_printf("Dump what [location]?\n");
162
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415 return;
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416 }
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417 base = _base;
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418 if (!len_set) {
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419 len = _len;
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420 len_set = true;
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421 }
115
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422 }
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423 if (!len_set) {
115
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424 len = 32;
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425 }
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426 diag_dump_buf((void *)base, len);
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427 _base = base + len;
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428 _len = len;
115
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429 }
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430
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431 void
156
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432 do_cksum(int argc, char *argv[])
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433 {
158
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434 // Compute a CRC, using the POSIX 1003 definition
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435 extern unsigned long
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436 posix_crc32(unsigned char *s, int len);
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437
156
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438 struct option_info opts[2];
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439 unsigned long base, len, crc;
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440 bool base_set, len_set;
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441
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442 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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443 (void **)&base, (bool *)&base_set, "base address");
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444 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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445 (void **)&len, (bool *)&len_set, "length");
159
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446 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
156
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447 return;
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448 }
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449 if (!base_set || !len_set) {
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450 diag_printf("usage: cksum -b <addr> -l <length>\n");
156
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451 return;
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452 }
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453 crc = posix_crc32((unsigned char *)base, len);
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454 diag_printf("POSIX cksum = 0x%08lx (%lu)\n", crc, crc);
156
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455 }
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456
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457 void
115
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458 do_go(int argc, char *argv[])
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459 {
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460 typedef void code_fun(void);
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461 unsigned long entry;
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462 unsigned long oldints;
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463 code_fun *fun;
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464 bool wait_time_set;
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465 int wait_time, res;
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466 struct option_info opts[1];
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467 char line[8];
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468
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469 entry = (unsigned long)entry_address; // Default from last 'load' operation
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470 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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471 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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472 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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473 {
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474 return;
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475 }
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476 if (wait_time_set) {
156
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477 int script_timeout_ms = wait_time * 1000;
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478 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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479 unsigned char *hold_script = script;
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480 script = (unsigned char *)0;
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481 #endif
182
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482 diag_printf("About to start execution at %p - abort with ^C within %d seconds\n",
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483 (void *)entry, wait_time);
156
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484 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
182
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485 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
156
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486 if (res == _GETS_CTRLC) {
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487 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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488 script = hold_script; // Re-enable script
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489 #endif
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490 return;
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491 }
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492 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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493 }
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494 }
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495 fun = (code_fun *)entry;
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496 HAL_DISABLE_INTERRUPTS(oldints);
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497 HAL_DCACHE_SYNC();
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498 HAL_ICACHE_DISABLE();
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499 HAL_DCACHE_DISABLE();
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500 HAL_DCACHE_SYNC();
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501 HAL_ICACHE_INVALIDATE_ALL();
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502 HAL_DCACHE_INVALIDATE_ALL();
141
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503 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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504 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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505 #else
115
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506 (*fun)();
141
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507 #endif
115
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508 }
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509
151
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510 #ifdef HAL_PLATFORM_RESET
143
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511 void
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512 do_reset(int argc, char *argv[])
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513 {
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514 diag_printf("... Resetting.");
143
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515 CYGACC_CALL_IF_DELAY_US(2*100000);
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516 diag_printf("\n");
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517 CYGACC_CALL_IF_RESET();
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518 diag_printf("!! oops, RESET not working on this platform\n");
143
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519 }
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520 #endif
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521
160
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522 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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523 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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524 #include <flash_config.h>
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525 #endif
159
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526
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527 void
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528 set_console_baud_rate(int rate)
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529 {
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530 hal_virtual_comm_table_t *__chan;
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531 int ret;
160
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532 static int current_rate = CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD;
159
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533
160
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534 if (rate != current_rate) {
159
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535 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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536 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SETBAUD, rate);
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537 if (ret <= 0) {
182
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538 diag_printf("Failed\n");
159
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539 }
160
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540 current_rate = rate;
159
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541 }
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542 }
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543
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544 void
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545 do_baud_rate(int argc, char *argv[])
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546 {
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547 int new_rate, ret;
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548 bool new_rate_set;
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549 hal_virtual_comm_table_t *__chan;
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550 struct option_info opts[1];
160
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551 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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552 struct config_option opt;
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553 #endif
159
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554
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555 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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556 (void **)&new_rate, (bool *)&new_rate_set, "new baud rate");
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557 if (!scan_opts(argc, argv, 1, opts, 1, 0, 0, "")) {
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558 return;
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559 }
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560 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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561 if (new_rate_set) {
160
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562 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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563 opt.type = CONFIG_INT;
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564 opt.enable = (char *)0;
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565 opt.enable_sense = 1;
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566 opt.key = "console_baud_rate";
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567 opt.dflt = new_rate;
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568 flash_add_config(&opt, true);
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569 #endif
159
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570 set_console_baud_rate(new_rate);
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571 } else {
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572 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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573 diag_printf("Baud rate = ");
159
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574 if (ret <= 0) {
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575 diag_printf("unknown\n");
159
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576 } else {
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577 diag_printf("%d\n", ret);
159
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578 }
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579 }
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580 }
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581 #endif
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582
132
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583 //
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584 // [Null] Builtin [Power On] Self Test
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585 //
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586 void bist(void) CYGBLD_ATTRIB_WEAK;
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587
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588 void
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589 bist(void)
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590 {
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591 }