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annotate packages/redboot/current/src/main.c @ 335:a253970d627b

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Fix baudrate setting for CYGPKG_REDBOOT_ANY_CONSOLE
author msalter
date Mon, 16 Sep 2002 13:18:40 +0000
parents 85c0eb753287
children 44f818173f96
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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 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas, tkoeller
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46 // Date: 2000-07-14
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47 // Purpose:
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48 // Description:
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49 //
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50 // This code is part of RedBoot (tm).
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //==========================================================================
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55
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56 #define DEFINE_VARS
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57 #include <redboot.h>
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58 #include <cyg/hal/hal_arch.h>
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59 #include <cyg/hal/hal_intr.h>
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60 #include <cyg/hal/hal_if.h>
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61 #include <cyg/hal/hal_cache.h>
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62 #include CYGHWR_MEMORY_LAYOUT_H
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63
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64 #include <cyg/hal/hal_tables.h>
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65
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66 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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67 #ifdef CYGBLD_HAL_PLATFORM_STUB_H
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68 #include CYGBLD_HAL_PLATFORM_STUB_H
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69 #else
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70 #include <cyg/hal/plf_stub.h>
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71 #endif
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72 // GDB interfaces
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73 extern void breakpoint(void);
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74 #endif
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75
132
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76 // Builtin Self Test (BIST)
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77 externC void bist(void);
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78
115
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79 // CLI command processing (defined in this file)
138
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80 RedBoot_cmd("version",
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81 "Display RedBoot version information",
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82 "",
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83 do_version
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84 );
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85 RedBoot_cmd("help",
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86 "Help about help?",
151
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87 "[<topic>]",
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88 do_help
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89 );
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90 RedBoot_cmd("go",
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91 "Execute code at a location",
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92 "[-w <timeout>] [entry]",
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93 do_go
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94 );
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95 #ifdef HAL_PLATFORM_RESET
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96 RedBoot_cmd("reset",
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97 "Reset the system",
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98 "",
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99 do_reset
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100 );
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101 #endif
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102 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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103 RedBoot_cmd("baudrate",
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104 "Set/Query the system console baud rate",
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105 "[-b <rate>]",
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106 do_baud_rate
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107 );
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108 #endif
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109
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110 // Define table boundaries
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111 CYG_HAL_TABLE_BEGIN( __RedBoot_INIT_TAB__, RedBoot_inits );
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112 CYG_HAL_TABLE_END( __RedBoot_INIT_TAB_END__, RedBoot_inits );
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113 extern struct init_tab_entry __RedBoot_INIT_TAB__[], __RedBoot_INIT_TAB_END__;
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114
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115 CYG_HAL_TABLE_BEGIN( __RedBoot_CMD_TAB__, RedBoot_commands );
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116 CYG_HAL_TABLE_END( __RedBoot_CMD_TAB_END__, RedBoot_commands );
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117 extern struct cmd __RedBoot_CMD_TAB__[], __RedBoot_CMD_TAB_END__;
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118
151
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119 CYG_HAL_TABLE_BEGIN( __RedBoot_IDLE_TAB__, RedBoot_idle );
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120 CYG_HAL_TABLE_END( __RedBoot_IDLE_TAB_END__, RedBoot_idle );
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121 extern struct idle_tab_entry __RedBoot_IDLE_TAB__[], __RedBoot_IDLE_TAB_END__;
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122
141
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123 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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124 extern void HAL_ARCH_PROGRAM_NEW_STACK(void *fun);
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125 #endif
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128 void
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129 do_version(int argc, char *argv[])
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130 {
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131 extern char RedBoot_version[];
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132 #ifdef CYGPKG_IO_FLASH
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133 externC void _flash_info(void);
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134 #endif
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135
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136 diag_printf(RedBoot_version);
138
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137 #ifdef HAL_PLATFORM_CPU
182
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138 diag_printf("Platform: %s (%s) %s\n", HAL_PLATFORM_BOARD, HAL_PLATFORM_CPU, HAL_PLATFORM_EXTRA);
138
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139 #endif
202
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140 diag_printf("Copyright (C) 2000, 2001, 2002, Red Hat, Inc.\n\n");
182
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141 diag_printf("RAM: %p-%p, %p-%p available\n",
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142 (void*)ram_start, (void*)ram_end,
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143 (void*)user_ram_start, (void *)user_ram_end);
171
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144 #ifdef CYGPKG_IO_FLASH
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145 _flash_info();
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146 #endif
156
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147 }
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148
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149 void
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150 do_idle(bool is_idle)
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151 {
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152 struct idle_tab_entry *idle_entry;
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153
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154 for (idle_entry = __RedBoot_IDLE_TAB__;
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155 idle_entry != &__RedBoot_IDLE_TAB_END__; idle_entry++) {
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156 (*idle_entry->fun)(is_idle);
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157 }
138
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158 }
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159
182
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160 // Wrapper used by diag_printf()
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161 static void
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162 _mon_write_char(char c, void **param)
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163 {
210
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164 if (c == '\n') {
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165 mon_write_char('\r');
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166 }
182
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167 mon_write_char(c);
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168 }
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169
115
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170 //
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171 // This is the main entry point for RedBoot
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172 //
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173 void
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174 cyg_start(void)
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175 {
143
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176 int res = 0;
115
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177 bool prompt = true;
143
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178 static char line[CYGPKG_REDBOOT_MAX_CMD_LINE];
183
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179 char *command;
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.
182
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185 diag_init_putc(_mon_write_char);
156
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186 hal_if_diag_init();
115
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187
156
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188 // Force console to output raw text - but remember the old setting
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189 // so it can be restored if interaction with a debugger is
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190 // required.
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191 cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
151
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192 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL);
115
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193 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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194 console_selected = false;
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195 #endif
128
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196 console_echo = true;
159
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197 CYGACC_CALL_IF_DELAY_US((cyg_int32)2*100000);
115
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198
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199 ram_start = (unsigned char *)CYGMEM_REGION_ram;
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200 ram_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
150
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201 #ifdef HAL_MEM_REAL_REGION_TOP
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202 {
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203 unsigned char *ram_end_tmp = ram_end;
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204 ram_end = HAL_MEM_REAL_REGION_TOP( ram_end_tmp );
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205 }
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206 #endif
156
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207 #ifdef CYGMEM_SECTION_heap1
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208 workspace_start = (unsigned char *)CYGMEM_SECTION_heap1;
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209 workspace_end = (unsigned char *)(CYGMEM_SECTION_heap1+CYGMEM_SECTION_heap1_SIZE);
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210 workspace_size = CYGMEM_SECTION_heap1_SIZE;
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211 #else
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212 workspace_start = (unsigned char *)CYGMEM_REGION_ram;
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213 workspace_end = (unsigned char *)(CYGMEM_REGION_ram+CYGMEM_REGION_ram_SIZE);
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214 workspace_size = CYGMEM_REGION_ram_SIZE;
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215 #endif
115
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216
158
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217 if ( ram_end < workspace_end ) {
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218 // when *less* SDRAM is installed than the possible maximum,
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219 // but the heap1 region remains greater...
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220 workspace_end = ram_end;
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221 workspace_size = workspace_end - workspace_start;
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222 }
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223
132
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224 bist();
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225
307
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226 #ifdef CYGOPT_REDBOOT_FIS_ZLIB_COMMON_BUFFER
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227 fis_zlib_common_buffer =
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228 workspace_end -= CYGNUM_REDBOOT_FIS_ZLIB_COMMON_BUFFER_SIZE;
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229 #endif
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230
126
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231 for (init_entry = __RedBoot_INIT_TAB__; init_entry != &__RedBoot_INIT_TAB_END__; init_entry++) {
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232 (*init_entry->fun)();
115
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233 }
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234
191
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235 user_ram_start = workspace_start;
156
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236 user_ram_end = workspace_end;
191
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237
156
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238 do_version(0,0);
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239
159
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240 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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241 # ifdef CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT
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242 if (!script) {
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243 script = CYGDAT_REDBOOT_DEFAULT_BOOT_SCRIPT;
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244 # ifndef CYGSEM_REDBOOT_FLASH_CONFIG
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245 script_timeout = CYGNUM_REDBOOT_BOOT_SCRIPT_DEFAULT_TIMEOUT;
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246 # endif
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247 }
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248 # endif
115
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249 if (script) {
159
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250 // Give the guy a chance to abort any boot script
115
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251 unsigned char *hold_script = script;
159
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252 int script_timeout_ms = script_timeout * CYGNUM_REDBOOT_BOOT_SCRIPT_TIMEOUT_RESOLUTION;
182
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253 diag_printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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254 script_timeout_ms/1000, script_timeout_ms%1000);
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255 script = (unsigned char *)0;
156
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256 res = _GETS_CTRLC; // Treat 0 timeout as ^C
151
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257 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
182
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258 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
158
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259 if (res >= _GETS_OK) {
182
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260 diag_printf("== Executing boot script in %d.%03d seconds - enter ^C to abort\n",
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261 script_timeout_ms/1000, script_timeout_ms%1000);
143
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262 continue; // Ignore anything but ^C
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263 }
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264 if (res != _GETS_TIMEOUT) break;
151
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265 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
143
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266 }
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267 if (res == _GETS_CTRLC) {
115
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268 script = (unsigned char *)0; // Disable script
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269 } else {
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270 script = hold_script; // Re-enable script
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271 }
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272 }
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273 #endif
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274
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275 while (true) {
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276 if (prompt) {
182
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277 diag_printf("RedBoot> ");
115
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278 prompt = false;
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279 }
195
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280 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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281 cmd_history = true; // Enable history collection
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282 #endif
182
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283 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
195
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284 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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285 cmd_history = false; // Enable history collection
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286 #endif
143
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287 if (res == _GETS_TIMEOUT) {
115
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288 // No input arrived
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289 } else {
162
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290 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
143
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291 if (res == _GETS_GDB) {
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292 int dbgchan;
161
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293 hal_virtual_comm_table_t *__chan;
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294 int i;
115
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295 // Special case of '$' - need to start GDB protocol
151
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296 gdb_active = true;
161
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297 // Mask interrupts on all channels
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298 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS; i++) {
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299 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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300 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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301 CYGACC_COMM_IF_CONTROL( *__chan, __COMMCTL_IRQ_DISABLE );
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302 }
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303
115
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304 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
141
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305 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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306 HAL_ARCH_PROGRAM_NEW_STACK(breakpoint);
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307 #else
115
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308 breakpoint(); // Get GDB stubs started, with a proper environment, etc.
141
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309 #endif
156
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310 dbgchan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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311 CYGACC_CALL_IF_SET_CONSOLE_COMM(dbgchan);
162
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312 } else
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313 #endif // CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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314 {
160
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315 expand_aliases(line, sizeof(line));
183
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316 command = (char *)&line;
195
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317 if ((*command == '#') || (*command == '=')) {
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318 // Special cases
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319 if (*command == '=') {
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320 // Print line on console
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321 diag_printf("%s\n", &line[2]);
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322 }
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323 } else {
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324 while (strlen(command) > 0) {
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325 if ((cmd = parse(&command, &argc, &argv[0])) != (struct cmd *)0) {
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326 (cmd->fun)(argc, argv);
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327 } else {
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328 diag_printf("** Error: Illegal command: \"%s\"\n", argv[0]);
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329 }
115
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330 }
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331 }
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332 prompt = true;
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333 }
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334 }
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335 }
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336 }
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337
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338 void
208
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339 show_help(struct cmd *cmd, struct cmd *cmd_end, char *which, char *pre)
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340 {
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341 bool show;
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342 int len = 0;
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343
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344 if (which) {
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345 len = strlen(which);
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346 }
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347 while (cmd != cmd_end) {
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348 show = true;
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349 if (which && (strncasecmp(which, cmd->str, len) != 0)) {
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350 show = false;
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351 }
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352 if (show) {
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353 diag_printf("%s\n %s %s %s\n", cmd->help, pre, cmd->str, cmd->usage);
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354 if ((cmd->sub_cmds != (struct cmd *)0) && (which != (char *)0)) {
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355 show_help(cmd->sub_cmds, cmd->sub_cmds_end, 0, cmd->str);
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356 }
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357 }
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358 cmd++;
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359 }
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360 }
115
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361
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362 void
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363 do_help(int argc, char *argv[])
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364 {
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365 struct cmd *cmd;
151
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366 char *which = (char *)0;
115
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367
151
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368 if (!scan_opts(argc, argv, 1, 0, 0, (void **)&which, OPTION_ARG_TYPE_STR, "<topic>")) {
182
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369 diag_printf("Invalid argument\n");
151
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370 return;
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371 }
115
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372 cmd = __RedBoot_CMD_TAB__;
208
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373 show_help(cmd, &__RedBoot_CMD_TAB_END__, which, "");
115
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374 return;
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375 }
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376
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377 void
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378 do_go(int argc, char *argv[])
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379 {
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380 typedef void code_fun(void);
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381 unsigned long entry;
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382 unsigned long oldints;
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383 code_fun *fun;
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384 bool wait_time_set;
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385 int wait_time, res;
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386 struct option_info opts[1];
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387 char line[8];
329
85c0eb753287 Add control for netio line flushing.
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388 hal_virtual_comm_table_t *__chan = CYGACC_CALL_IF_CONSOLE_PROCS();
115
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389
196
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390 entry = entry_address; // Default from last 'load' operation
115
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391 init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM,
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392 (void **)&wait_time, (bool *)&wait_time_set, "wait timeout");
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393 if (!scan_opts(argc, argv, 1, opts, 1, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address"))
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394 {
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395 return;
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396 }
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397 if (wait_time_set) {
156
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398 int script_timeout_ms = wait_time * 1000;
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399 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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400 unsigned char *hold_script = script;
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401 script = (unsigned char *)0;
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402 #endif
182
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403 diag_printf("About to start execution at %p - abort with ^C within %d seconds\n",
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404 (void *)entry, wait_time);
156
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405 while (script_timeout_ms >= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT) {
182
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406 res = _rb_gets(line, sizeof(line), CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT);
156
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407 if (res == _GETS_CTRLC) {
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408 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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409 script = hold_script; // Re-enable script
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410 #endif
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411 return;
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412 }
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413 script_timeout_ms -= CYGNUM_REDBOOT_CLI_IDLE_TIMEOUT;
115
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414 }
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415 }
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416 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_ENABLE_LINE_FLUSH);
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417
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418 fun = (code_fun *)entry;
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419 HAL_DISABLE_INTERRUPTS(oldints);
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420 HAL_DCACHE_SYNC();
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421 HAL_ICACHE_DISABLE();
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422 HAL_DCACHE_DISABLE();
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423 HAL_DCACHE_SYNC();
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424 HAL_ICACHE_INVALIDATE_ALL();
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425 HAL_DCACHE_INVALIDATE_ALL();
141
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426 #ifdef HAL_ARCH_PROGRAM_NEW_STACK
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427 HAL_ARCH_PROGRAM_NEW_STACK(fun);
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428 #else
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429 (*fun)();
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430 #endif
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431 }
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432
151
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433 #ifdef HAL_PLATFORM_RESET
143
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434 void
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435 do_reset(int argc, char *argv[])
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436 {
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437 diag_printf("... Resetting.");
143
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438 CYGACC_CALL_IF_DELAY_US(2*100000);
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439 diag_printf("\n");
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440 CYGACC_CALL_IF_RESET();
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441 diag_printf("!! oops, RESET not working on this platform\n");
143
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442 }
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443 #endif
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444
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445 #ifdef CYGSEM_REDBOOT_VARIABLE_BAUD_RATE
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446 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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447 #include <flash_config.h>
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448 #endif
159
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449
335
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450 static int
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451 set_comm_baud_rate(hal_virtual_comm_table_t *chan, int rate)
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452 {
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453 int current_rate;
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454
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455 current_rate = CYGACC_COMM_IF_CONTROL(*chan, __COMMCTL_SETBAUD, rate);
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456 if (rate != current_rate)
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457 return CYGACC_COMM_IF_CONTROL(*chan, __COMMCTL_SETBAUD, rate);
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458
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459 return 0;
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460 }
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461
208
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462 int
159
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463 set_console_baud_rate(int rate)
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464 {
335
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465 int ret;
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466 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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467 if (!console_selected) {
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468 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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469 int i;
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470 // Set baud for all channels
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471 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; i++) {
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472 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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473 ret = set_comm_baud_rate(CYGACC_CALL_IF_CONSOLE_PROCS(), rate);
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474 if (ret < 0)
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475 break;
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476 }
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477 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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478 } else
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479 #endif
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480 ret = set_comm_baud_rate(CYGACC_CALL_IF_CONSOLE_PROCS(), rate);
159
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481
335
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482 if (ret < 0)
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483 diag_printf("Setting console baud rate to %d failed\n", rate);
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484
208
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485 return ret;
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486 }
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487
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488 static void
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489 _sleep(int ms)
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490 {
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491 int i;
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492 for (i = 0; i < ms; i++) {
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493 CYGACC_CALL_IF_DELAY_US((cyg_int32)1000);
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494 }
159
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495 }
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496
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497 void
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498 do_baud_rate(int argc, char *argv[])
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499 {
208
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500 int new_rate, ret, old_rate;
159
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501 bool new_rate_set;
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502 hal_virtual_comm_table_t *__chan;
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503 struct option_info opts[1];
160
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504 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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505 struct config_option opt;
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506 #endif
159
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507
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508 init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
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509 (void **)&new_rate, (bool *)&new_rate_set, "new baud rate");
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510 if (!scan_opts(argc, argv, 1, opts, 1, 0, 0, "")) {
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511 return;
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512 }
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513 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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514 if (new_rate_set) {
208
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515 diag_printf("Baud rate will be changed to %d - update your settings\n", new_rate);
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516 _sleep(500); // Give serial time to flush
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517 old_rate = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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518 ret = set_console_baud_rate(new_rate);
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519 if (ret < 0) {
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520 if (old_rate > 0) {
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521 // Try to restore
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522 set_console_baud_rate(old_rate);
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523 _sleep(500); // Give serial time to flush
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524 diag_printf("\nret = %d\n", ret);
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525 }
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526 return; // Couldn't set the desired rate
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527 }
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528 old_rate = ret;
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529 // Make sure this new rate works or back off to previous value
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530 // Sleep for a few seconds, then prompt to see if it works
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531 _sleep(3000); // Give serial time to flush
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532 if (!verify_action_with_timeout(5000, "Baud rate changed to %d", new_rate)) {
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533 _sleep(500); // Give serial time to flush
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534 set_console_baud_rate(old_rate);
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535 _sleep(500); // Give serial time to flush
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536 return;
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537 }
160
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538 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
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539 opt.type = CONFIG_INT;
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540 opt.enable = (char *)0;
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541 opt.enable_sense = 1;
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542 opt.key = "console_baud_rate";
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543 opt.dflt = new_rate;
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544 flash_add_config(&opt, true);
160
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545 #endif
159
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546 } else {
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547 ret = CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_GETBAUD);
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548 diag_printf("Baud rate = ");
159
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549 if (ret <= 0) {
182
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550 diag_printf("unknown\n");
159
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551 } else {
182
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552 diag_printf("%d\n", ret);
159
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553 }
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554 }
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555 }
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556 #endif
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557
132
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558 //
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559 // [Null] Builtin [Power On] Self Test
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560 //
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561 void bist(void) CYGBLD_ATTRIB_WEAK;
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562
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563 void
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564 bist(void)
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565 {
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566 }