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annotate packages/redboot/current/src/main.c @ 165:d63db767121d

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Merge from eCos master repository on 2001-06-29-06:43:03-BST
author jlarmour
date Fri, 29 Jun 2001 07:16:25 +0000
parents 2395031e7a66
children 42f843b391aa
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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
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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[];
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143 printf(RedBoot_version);
138
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144 #ifdef HAL_PLATFORM_CPU
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145 printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
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146 #endif
147
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147 printf("Copyright (C) 2000, 2001, Red Hat, Inc.\n\n");
156
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148 printf("RAM: %p-%p, %p-%p available\n",
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149 (void*)ram_start, (void*)ram_end,
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150 (void*)user_ram_start, (void *)user_ram_end);
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151 }
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152
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153 void
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154 do_idle(bool is_idle)
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155 {
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156 struct idle_tab_entry *idle_entry;
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157
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158 for (idle_entry = __RedBoot_IDLE_TAB__;
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159 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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160 (*idle_entry->fun)(is_idle);
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161 }
138
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162 }
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163
115
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164 //
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165 // This is the main entry point for RedBoot
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166 //
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167 void
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168 cyg_start(void)
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169 {
143
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170 int res = 0;
115
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171 bool prompt = true;
143
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172 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
115
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173 struct cmd *cmd;
156
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174 int cur;
126
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175 struct init_tab_entry *init_entry;
156
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176
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177 // Make sure the channels are properly initialized.
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178 hal_if_diag_init();
115
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179
156
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180 // Force console to output raw text - but remember the old setting
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181 // so it can be restored if interaction with a debugger is
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182 // required.
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183 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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184 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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185 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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186 console_selected = false;
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187 #endif
128
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188 console_echo = true;
159
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189 CYGACC_CALL_IF_DELAY_US((cyg_int32)2*100000);
115
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190
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191 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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192 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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193 #ifdef HAL_MEM_REAL_REGION_TOP
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194 {
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195 unsigned char *ram_end_tmp = ram_end;
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196 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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197 }
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198 #endif
156
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199 #ifdef CYGMEM_SECTION_heap1
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200 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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201 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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202 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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203 #else
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204 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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205 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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206 workspace_size = CYGMEM_REGION_ram_SIZE;
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207 #endif
115
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208
158
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209 if ( ram_end < workspace_end ) {
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210 // when *less* SDRAM is installed than the possible maximum,
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211 // but the heap1 region remains greater...
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212 workspace_end = ram_end;
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213 workspace_size = workspace_end - workspace_start;
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214 }
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215
132
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216 bist();
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217
126
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218 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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219 (*init_entry->fun)();
115
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220 }
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221
156
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222 #ifdef CYGPKG_COMPRESS_ZLIB
161
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223 #define ZLIB_COMPRESSION_OVERHEAD 0xB800
156
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224 #else
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225 #define ZLIB_COMPRESSION_OVERHEAD 0
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226 #endif
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227 user_ram_start = workspace_start + ZLIB_COMPRESSION_OVERHEAD;
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228 user_ram_end = workspace_end;
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229 do_version(0,0);
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230
159
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231 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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232 # ifdef CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT
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233 if (!script) {
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234 script = CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT;
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235 # ifndef CYGSEM_REDBOOT_FLASH_CONFIG
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236 script_timeout = CYGNUM_REDBOOT_BOOT_SCRIPT_DEFAULT_TIMEOUT;
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237 # endif
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238 }
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239 # endif
115
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240 if (script) {
159
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241 // Give the guy a chance to abort any boot script
115
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242 unsigned char *hold_script = script;
159
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243 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION;
130
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244 printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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245 script_timeout_ms/1000, script_timeout_ms%1000);
115
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246 script = (unsigned char *)0;
156
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247 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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248 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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249 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
158
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250 if (res >= _GETS_OK) {
143
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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);
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253 continue; // Ignore anything but ^C
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254 }
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255 if (res != _GETS_TIMEOUT) break;
151
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256 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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257 }
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258 if (res == _GETS_CTRLC) {
115
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259 script = (unsigned char *)0; // Disable script
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260 } else {
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261 script = hold_script; // Re-enable script
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262 }
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263 }
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264 #endif
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265
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266 while (true) {
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267 if (prompt) {
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268 printf("RedBoot> ");
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269 prompt = false;
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270 }
151
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271 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
143
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272 if (res == _GETS_TIMEOUT) {
115
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273 // No input arrived
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274 } else {
162
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275 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
143
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276 if (res == _GETS_GDB) {
156
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277 int dbgchan;
161
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278 hal_virtual_comm_table_t *__chan;
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279 int i;
115
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280 // Special case of '$' - need to start GDB protocol
151
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281 gdb_active = true;
161
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282 // Mask interrupts on all channels
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283 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS; i++) {
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284 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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285 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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286 CYGACC_COMM_IF_CONTROL( *__chan, __COMMCTL_IRQ_DISABLE );
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287 }
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288
115
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289 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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290 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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291 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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292 #else
115
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293 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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294 #endif
156
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295 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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296 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
162
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297 } else
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298 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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299 {
160
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300 #ifdef CYGSEM_REDBOOT_FLASH_ALIASES
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301 expand_aliases(line, sizeof(line));
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302 #endif
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303 if (strlen(line) > 0) {
115
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304 if ((cmd = parse(line, &argc, &argv[0])) != (struct cmd *)0) {
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305 (cmd->fun)(argc, argv);
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306 } else {
143
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307 printf("** Error: Illegal command: \"%s\"\n", argv[0]);
115
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308 }
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309 }
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310 prompt = true;
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311 }
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312 }
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313 }
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314 }
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315
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316 void
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317 do_caches(int argc, char *argv[])
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318 {
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319 unsigned long oldints;
161
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320 int dcache_on=0, icache_on=0;
151
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321
115
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322 if (argc == 2) {
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323 if (strcmpci(argv[1], "on") == 0) {
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324 HAL_DISABLE_INTERRUPTS(oldints);
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325 HAL_ICACHE_ENABLE();
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326 HAL_DCACHE_ENABLE();
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327 HAL_RESTORE_INTERRUPTS(oldints);
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328 } else if (strcmpci(argv[1], "off") == 0) {
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329 HAL_DISABLE_INTERRUPTS(oldints);
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330 HAL_DCACHE_SYNC();
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331 HAL_ICACHE_DISABLE();
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332 HAL_DCACHE_DISABLE();
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333 HAL_DCACHE_SYNC();
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334 HAL_ICACHE_INVALIDATE_ALL();
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335 HAL_DCACHE_INVALIDATE_ALL();
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336 HAL_RESTORE_INTERRUPTS(oldints);
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337 } else {
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338 printf("Invalid cache mode: %s\n", argv[1]);
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339 }
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340 } else {
161
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341 #ifdef HAL_DCACHE_IS_ENABLED
159
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342 HAL_DCACHE_IS_ENABLED(dcache_on);
161
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343 #endif
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344 #ifdef HAL_ICACHE_IS_ENABLED
159
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345 HAL_ICACHE_IS_ENABLED(icache_on);
161
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346 #endif
159
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347 printf("Data cache: %s, Instruction cache: %s\n", dcache_on?"On":"Off", icache_on?"On":"Off");
115
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348 }
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349 }
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350
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351
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352 void
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353 do_help(int argc, char *argv[])
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354 {
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355 struct cmd *cmd;
151
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356 char *which = (char *)0;
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357 bool show;
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358 int len = 0;
115
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359
151
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360 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
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361 printf("Invalid argument\n");
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362 return;
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363 }
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364 if (which) {
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365 len = strlen(which);
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366 }
115
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367 cmd = __RedBoot_CMD_TAB__;
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368 while (cmd != &__RedBoot_CMD_TAB_END__) {
151
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369 show = true;
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370 if (which && (strncmpci(which, cmd->str, len) != 0)) {
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371 show = false;
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372 }
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373 if (show) {
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374 printf("%s\n %s %s\n", cmd->help, cmd->str, cmd->usage);
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375 }
115
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376 cmd++;
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377 }
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378 return;
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379 }
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380
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381 void
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382 do_dump(int argc, char *argv[])
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383 {
130
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384 struct option_info opts[2];
115
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385 unsigned long base, len;
130
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386 bool base_set, len_set;
162
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387 static unsigned long _base, _len;
115
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388
130
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389 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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390 (void **)&base, (bool *)&base_set, "base address");
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391 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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392 (void **)&len, (bool *)&len_set, "length");
159
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393 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
130
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394 return;
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395 }
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396 if (!base_set) {
162
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397 if (_base == 0) {
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398 printf("Dump what [location]?\n");
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399 return;
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400 }
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401 base = _base;
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402 if (!len_set) {
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403 len = _len;
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404 len_set = true;
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405 }
115
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406 }
130
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407 if (!len_set) {
115
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408 len = 32;
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409 }
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410 dump_buf((void *)base, len);
162
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411 _base = base + len;
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412 _len = len;
115
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413 }
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414
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415 void
156
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416 do_cksum(int argc, char *argv[])
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417 {
158
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418 // Compute a CRC, using the POSIX 1003 definition
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419 extern unsigned long
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420 posix_crc32(unsigned char *s, int len);
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421
156
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422 struct option_info opts[2];
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423 unsigned long base, len, crc;
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424 bool base_set, len_set;
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425
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426 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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427 (void **)&base, (bool *)&base_set, "base address");
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428 init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
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429 (void **)&len, (bool *)&len_set, "length");
159
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430 if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
156
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431 return;
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432 }
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433 if (!base_set || !len_set) {
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434 printf("usage: cksum -b <addr> -l <length>\n");
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435 return;
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436 }
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437 crc = posix_crc32((unsigned char *)base, len);
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438 printf("POSIX cksum = 0x%08lx (%lu)\n", crc, crc);
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439 }
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440
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441 void
115
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442 do_go(int argc, char *argv[])
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443 {
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444 typedef void code_fun(void);
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445 unsigned long entry;
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446 unsigned long oldints;
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447 code_fun *fun;
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448 bool wait_time_set;
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449 int wait_time, res;
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450 struct option_info opts[1];
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451 char line[8];
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452
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453 entry = (unsigned long)entry_address; // Default from last 'load' operation
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454 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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455 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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456 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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457 {
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458 return;
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459 }
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460 if (wait_time_set) {
156
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461 int script_timeout_ms = wait_time * 1000;
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462 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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463 unsigned char *hold_script = script;
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464 script = (unsigned char *)0;
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465 #endif
115
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466 printf("About to start execution at %p - abort with ^C within %d seconds\n",
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467 (void *)entry, wait_time);
156
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468 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
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469 res = gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
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470 if (res == _GETS_CTRLC) {
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471 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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472 script = hold_script; // Re-enable script
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473 #endif
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474 return;
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475 }
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476 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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477 }
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478 }
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479 fun = (code_fun *)entry;
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480 HAL_DISABLE_INTERRUPTS(oldints);
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481 HAL_DCACHE_SYNC();
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482 HAL_ICACHE_DISABLE();
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483 HAL_DCACHE_DISABLE();
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484 HAL_DCACHE_SYNC();
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485 HAL_ICACHE_INVALIDATE_ALL();
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486 HAL_DCACHE_INVALIDATE_ALL();
141
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487 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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488 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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489 #else
115
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490 (*fun)();
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491 #endif
115
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492 }
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493
151
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494 #ifdef HAL_PLATFORM_RESET
143
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495 void
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496 do_reset(int argc, char *argv[])
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497 {
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498 printf("... Resetting.");
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499 CYGACC_CALL_IF_DELAY_US(2*100000);
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500 printf("\n");
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501 CYGACC_CALL_IF_RESET();
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502 printf("!! oops, RESET not working on this platform\n");
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503 }
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504 #endif
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505
160
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506 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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507 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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508 #include <flash_config.h>
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509 #endif
159
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510
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511 void
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512 set_console_baud_rate(int rate)
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513 {
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514 hal_virtual_comm_table_t *__chan;
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515 int ret;
160
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516 static int current_rate = CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD;
159
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517
160
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518 if (rate != current_rate) {
159
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519 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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520 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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521 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SETBAUD, rate);
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522 if (ret <= 0) {
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523 printf("Failed\n");
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524 }
160
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525 current_rate = rate;
159
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526 }
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527 }
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528
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529 void
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530 do_baud_rate(int argc, char *argv[])
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531 {
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532 int new_rate, ret;
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533 bool new_rate_set;
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534 hal_virtual_comm_table_t *__chan;
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535 struct option_info opts[1];
160
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536 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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537 struct config_option opt;
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538 #endif
159
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539
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540 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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541 (void **)&new_rate, (bool *)&new_rate_set, "new baud rate");
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542 if (!scan_opts(argc, argv, 1, opts, 1, 0, 0, "")) {
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543 return;
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544 }
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545 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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546 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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547 if (new_rate_set) {
160
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548 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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549 opt.type = CONFIG_INT;
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550 opt.enable = (char *)0;
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551 opt.enable_sense = 1;
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552 opt.key = "console_baud_rate";
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553 opt.dflt = new_rate;
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554 flash_add_config(&opt, true);
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555 #endif
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556 set_console_baud_rate(new_rate);
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557 } else {
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558 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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559 printf("Baud rate = ");
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560 if (ret <= 0) {
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561 printf("unknown\n");
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562 } else {
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563 printf("%d\n", ret);
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564 }
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565 }
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566 }
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567 #endif
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568
132
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569 //
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570 // [Null] Builtin [Power On] Self Test
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571 //
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572 void bist(void) CYGBLD_ATTRIB_WEAK;
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573
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574 void
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575 bist(void)
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576 {
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577 }