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annotate packages/redboot/current/src/main.c @ 174:38892b97b685

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Merge from eCos master repository on 2001-07-28-00:17:32-BST
author jlarmour
date Sun, 29 Jul 2001 02:00:07 +0000
parents 42f843b391aa
children f62680ef1804
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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?",
151
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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
141
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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
145
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147 printf(RedBoot_version);
138
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148 #ifdef HAL_PLATFORM_CPU
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149 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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150 #endif
147
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151 printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
156
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152 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
115
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171 //
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172 // This is the main entry point for RedBoot
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173 //
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174 void
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175 cyg_start(void)
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176 {
143
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177 int res = 0;
115
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178 bool prompt = true;
143
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179 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
115
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180 struct cmd *cmd;
156
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181 int cur;
126
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182 struct init_tab_entry *init_entry;
156
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183
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184 // Make sure the channels are properly initialized.
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185 hal_if_diag_init();
115
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186
156
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187 // Force console to output raw text - but remember the old setting
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188 // so it can be restored if interaction with a debugger is
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189 // required.
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190 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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191 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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192 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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193 console_selected = false;
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194 #endif
128
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195 console_echo = true;
159
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196 CYGACC_CALL_IF_DELAY_US((cyg_int32)2*100000);
115
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197
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198 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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199 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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200 #ifdef HAL_MEM_REAL_REGION_TOP
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201 {
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202 unsigned char *ram_end_tmp = ram_end;
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203 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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204 }
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205 #endif
156
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206 #ifdef CYGMEM_SECTION_heap1
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207 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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208 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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209 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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210 #else
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211 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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212 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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213 workspace_size = CYGMEM_REGION_ram_SIZE;
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214 #endif
115
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215
158
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216 if ( ram_end < workspace_end ) {
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217 // when *less* SDRAM is installed than the possible maximum,
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218 // but the heap1 region remains greater...
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219 workspace_end = ram_end;
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220 workspace_size = workspace_end - workspace_start;
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221 }
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222
132
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223 bist();
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224
126
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225 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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226 (*init_entry->fun)();
115
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227 }
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228
156
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229 #ifdef CYGPKG_COMPRESS_ZLIB
161
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230 #define ZLIB_COMPRESSION_OVERHEAD 0xB800
156
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231 #else
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232 #define ZLIB_COMPRESSION_OVERHEAD 0
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233 #endif
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234 user_ram_start = workspace_start + ZLIB_COMPRESSION_OVERHEAD;
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235 user_ram_end = workspace_end;
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236 do_version(0,0);
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237
159
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238 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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239 # ifdef CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT
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240 if (!script) {
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241 script = CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT;
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242 # ifndef CYGSEM_REDBOOT_FLASH_CONFIG
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243 script_timeout = CYGNUM_REDBOOT_BOOT_SCRIPT_DEFAULT_TIMEOUT;
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244 # endif
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245 }
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246 # endif
115
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247 if (script) {
159
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248 // Give the guy a chance to abort any boot script
115
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249 unsigned char *hold_script = script;
159
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250 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION;
130
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251 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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252 script_timeout_ms/1000, script_timeout_ms%1000);
115
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253 script = (unsigned char *)0;
156
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254 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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255 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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256 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
158
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257 if (res >= _GETS_OK) {
143
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258 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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259 script_timeout_ms/1000, script_timeout_ms%1000);
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260 continue; // Ignore anything but ^C
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261 }
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262 if (res != _GETS_TIMEOUT) break;
151
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263 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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264 }
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265 if (res == _GETS_CTRLC) {
115
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266 script = (unsigned char *)0; // Disable script
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267 } else {
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268 script = hold_script; // Re-enable script
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269 }
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270 }
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271 #endif
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272
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273 while (true) {
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274 if (prompt) {
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275 printf("RedBoot> ");
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276 prompt = false;
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277 }
151
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278 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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279 if (res == _GETS_TIMEOUT) {
115
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280 // No input arrived
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281 } else {
162
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282 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
143
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283 if (res == _GETS_GDB) {
156
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284 int dbgchan;
161
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285 hal_virtual_comm_table_t *__chan;
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286 int i;
115
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287 // Special case of '$' - need to start GDB protocol
151
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288 gdb_active = true;
161
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289 // Mask interrupts on all channels
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290 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS; i++) {
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291 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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292 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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293 CYGACC_COMM_IF_CONTROL( *__chan, __COMMCTL_IRQ_DISABLE );
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294 }
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295
115
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296 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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297 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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298 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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299 #else
115
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300 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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301 #endif
156
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302 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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303 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
162
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304 } else
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305 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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306 {
160
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307 #ifdef CYGSEM_REDBOOT_FLASH_ALIASES
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308 expand_aliases(line, sizeof(line));
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309 #endif
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310 if (strlen(line) > 0) {
115
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311 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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312 (cmd->fun)(argc, argv);
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313 } else {
143
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314 printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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315 }
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316 }
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317 prompt = true;
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318 }
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319 }
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320 }
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321 }
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322
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323 void
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324 do_caches(int argc, char *argv[])
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325 {
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326 unsigned long oldints;
161
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327 int dcache_on=0, icache_on=0;
151
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328
115
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329 if (argc == 2) {
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330 if (strcmpci(argv[1], "on") == 0) {
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331 HAL_DISABLE_INTERRUPTS(oldints);
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332 HAL_ICACHE_ENABLE();
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333 HAL_DCACHE_ENABLE();
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334 HAL_RESTORE_INTERRUPTS(oldints);
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335 } else if (strcmpci(argv[1], "off") == 0) {
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336 HAL_DISABLE_INTERRUPTS(oldints);
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337 HAL_DCACHE_SYNC();
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338 HAL_ICACHE_DISABLE();
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339 HAL_DCACHE_DISABLE();
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340 HAL_DCACHE_SYNC();
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341 HAL_ICACHE_INVALIDATE_ALL();
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342 HAL_DCACHE_INVALIDATE_ALL();
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343 HAL_RESTORE_INTERRUPTS(oldints);
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344 } else {
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345 printf("Invalid cache mode: %s\n", argv[1]);
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346 }
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347 } else {
161
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348 #ifdef HAL_DCACHE_IS_ENABLED
159
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349 HAL_DCACHE_IS_ENABLED(dcache_on);
161
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350 #endif
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351 #ifdef HAL_ICACHE_IS_ENABLED
159
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352 HAL_ICACHE_IS_ENABLED(icache_on);
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353 #endif
159
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354 printf("Data cache: %s, Instruction cache: %s\n", dcache_on?"On":"Off", icache_on?"On":"Off");
115
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355 }
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356 }
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357
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358
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359 void
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360 do_help(int argc, char *argv[])
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361 {
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362 struct cmd *cmd;
151
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363 char *which = (char *)0;
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364 bool show;
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365 int len = 0;
115
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366
151
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367 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
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368 printf("Invalid argument\n");
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369 return;
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370 }
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371 if (which) {
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372 len = strlen(which);
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373 }
115
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374 cmd = __RedBoot_CMD_TAB__;
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375 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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376 show = true;
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377 if (which && (strncmpci(which, cmd->str, len) != 0)) {
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378 show = false;
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379 }
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380 if (show) {
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381 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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382 }
115
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383 cmd++;
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384 }
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385 return;
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386 }
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387
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388 void
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389 do_dump(int argc, char *argv[])
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390 {
130
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391 struct option_info opts[2];
115
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392 unsigned long base, len;
130
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393 bool base_set, len_set;
162
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394 static unsigned long _base, _len;
115
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395
130
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396 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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397 (void **)&base, (bool *)&base_set, "base address");
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398 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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399 (void **)&len, (bool *)&len_set, "length");
159
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400 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
130
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401 return;
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402 }
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403 if (!base_set) {
162
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404 if (_base == 0) {
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405 printf("Dump what [location]?\n");
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406 return;
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407 }
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408 base = _base;
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409 if (!len_set) {
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410 len = _len;
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411 len_set = true;
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412 }
115
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413 }
130
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414 if (!len_set) {
115
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415 len = 32;
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416 }
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417 dump_buf((void *)base, len);
162
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418 _base = base + len;
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419 _len = len;
115
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420 }
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421
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422 void
156
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423 do_cksum(int argc, char *argv[])
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424 {
158
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425 // Compute a CRC, using the POSIX 1003 definition
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426 extern unsigned long
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427 posix_crc32(unsigned char *s, int len);
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428
156
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429 struct option_info opts[2];
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430 unsigned long base, len, crc;
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431 bool base_set, len_set;
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432
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433 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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434 (void **)&base, (bool *)&base_set, "base address");
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435 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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436 (void **)&len, (bool *)&len_set, "length");
159
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437 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
156
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438 return;
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439 }
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440 if (!base_set || !len_set) {
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441 printf("usage: cksum -b <addr> -l <length>\n");
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442 return;
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443 }
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444 crc = posix_crc32((unsigned char *)base, len);
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445 printf("POSIX cksum = 0x%08lx (%lu)\n", crc, crc);
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446 }
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447
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448 void
115
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449 do_go(int argc, char *argv[])
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450 {
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451 typedef void code_fun(void);
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452 unsigned long entry;
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453 unsigned long oldints;
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454 code_fun *fun;
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455 bool wait_time_set;
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456 int wait_time, res;
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457 struct option_info opts[1];
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458 char line[8];
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459
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460 entry = (unsigned long)entry_address; // Default from last 'load' operation
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461 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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462 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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463 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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464 {
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465 return;
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466 }
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467 if (wait_time_set) {
156
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468 int script_timeout_ms = wait_time * 1000;
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469 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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470 unsigned char *hold_script = script;
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471 script = (unsigned char *)0;
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472 #endif
115
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473 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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474 (void *)entry, wait_time);
156
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475 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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476 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
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477 if (res == _GETS_CTRLC) {
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478 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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479 script = hold_script; // Re-enable script
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480 #endif
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481 return;
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482 }
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483 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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484 }
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485 }
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486 fun = (code_fun *)entry;
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487 HAL_DISABLE_INTERRUPTS(oldints);
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488 HAL_DCACHE_SYNC();
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489 HAL_ICACHE_DISABLE();
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490 HAL_DCACHE_DISABLE();
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491 HAL_DCACHE_SYNC();
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492 HAL_ICACHE_INVALIDATE_ALL();
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493 HAL_DCACHE_INVALIDATE_ALL();
141
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494 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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495 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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496 #else
115
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497 (*fun)();
141
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498 #endif
115
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499 }
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500
151
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501 #ifdef HAL_PLATFORM_RESET
143
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502 void
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503 do_reset(int argc, char *argv[])
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504 {
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505 printf("... Resetting.");
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506 CYGACC_CALL_IF_DELAY_US(2*100000);
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507 printf("\n");
165
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508 CYGACC_CALL_IF_RESET();
143
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509 printf("!! oops, RESET not working on this platform\n");
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510 }
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511 #endif
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512
160
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513 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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514 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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515 #include <flash_config.h>
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516 #endif
159
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517
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518 void
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519 set_console_baud_rate(int rate)
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520 {
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521 hal_virtual_comm_table_t *__chan;
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522 int ret;
160
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523 static int current_rate = CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD;
159
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524
160
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525 if (rate != current_rate) {
159
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526 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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527 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SETBAUD, rate);
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528 if (ret <= 0) {
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529 printf("Failed\n");
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530 }
160
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531 current_rate = rate;
159
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532 }
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533 }
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534
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535 void
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536 do_baud_rate(int argc, char *argv[])
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537 {
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538 int new_rate, ret;
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539 bool new_rate_set;
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540 hal_virtual_comm_table_t *__chan;
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541 struct option_info opts[1];
160
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542 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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543 struct config_option opt;
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544 #endif
159
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545
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546 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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547 (void **)&new_rate, (bool *)&new_rate_set, "new baud rate");
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548 if (!scan_opts(argc, argv, 1, opts, 1, 0, 0, "")) {
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549 return;
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550 }
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551 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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552 if (new_rate_set) {
160
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553 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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554 opt.type = CONFIG_INT;
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555 opt.enable = (char *)0;
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556 opt.enable_sense = 1;
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557 opt.key = "console_baud_rate";
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558 opt.dflt = new_rate;
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559 flash_add_config(&opt, true);
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560 #endif
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561 set_console_baud_rate(new_rate);
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562 } else {
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563 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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564 printf("Baud rate = ");
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565 if (ret <= 0) {
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566 printf("unknown\n");
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567 } else {
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568 printf("%d\n", ret);
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569 }
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570 }
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571 }
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572 #endif
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573
132
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574 //
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575 // [Null] Builtin [Power On] Self Test
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576 //
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577 void bist(void) CYGBLD_ATTRIB_WEAK;
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578
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579 void
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580 bist(void)
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581 {
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582 }