src/openocd.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008 Richard Missenden                                  *
   9  *   richard.missenden@googlemail.com                                      *
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  *   This program is distributed in the hope that it will be useful,       *
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  19  *   GNU General Public License for more details.                          *
  20  *                                                                         *
  21  *   You should have received a copy of the GNU General Public License     *
  22  *   along with this program; if not, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  25  ***************************************************************************/
  26
  27 #define OPENOCD_VERSION "Open On-Chip Debugger " VERSION " (" PKGBLDDATE ") svn:" PKGBLDREV
  28
  29 #ifdef HAVE_CONFIG_H
  30 #include "config.h"
  31 #endif
  32
  33 #include "log.h"
  34 #include "types.h"
  35 #include "jtag.h"
  36 #include "configuration.h"
  37 #include "xsvf.h"
  38 #include "target.h"
  39 #include "flash.h"
  40 #include "nand.h"
  41 #include "pld.h"
  42 #include "mflash.h"
  43
  44 #include "command.h"
  45 #include "server.h"
  46 #include "telnet_server.h"
  47 #include "gdb_server.h"
  48 #include "tcl_server.h"
  49
  50 #include <sys/time.h>
  51 #include <sys/types.h>
  52 #include <strings.h>
  53 #include <stdio.h>
  54 #include <stdlib.h>
  55 #include <string.h>
  56 #include <unistd.h>
  57 #include <errno.h>
  58
  59 #ifdef _WIN32
  60 #include <malloc.h>
  61 #else
  62 #include <alloca.h>
  63 #endif
  64
  65 #include "replacements.h"
  66
  67 void print_version(void)
  68 {
  69         /* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
  70         /* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
  71         /* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
  72         /* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
  73         /* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
  74         LOG_OUTPUT("$URL$\n");
  75         /* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
  76         /* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
  77         /* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
  78         /* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
  79         /* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
  80 }
  81
  82 /* Give TELNET a way to find out what version this is */
  83 int handle_version_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
  84 {
  85         if (argc!=0)
  86                 return ERROR_COMMAND_SYNTAX_ERROR;
  87
  88         command_print(cmd_ctx, OPENOCD_VERSION);
  89
  90         return ERROR_OK;
  91 }
  92
  93 void exit_handler(void)
  94 {
  95         /* close JTAG interface */
  96         if (jtag && jtag->quit)
  97                 jtag->quit();
  98 }
  99
 100 static int log_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
 101 {
 102         switch (event)
 103         {
 104                 case TARGET_EVENT_GDB_START:
 105                         target->display=0;
 106                         break;
 107                 case TARGET_EVENT_GDB_END:
 108                         target->display=1;
 109                         break;
 110                 case TARGET_EVENT_HALTED:
 111                         if (target->display)
 112                         {
 113                                 /* do not display information when debugger caused the halt */
 114                                 target_arch_state(target);
 115                         }
 116                         break;
 117                 default:
 118                         break;
 119         }
 120
 121         return ERROR_OK;
 122 }
 123
 124 int ioutil_init(struct command_context_s *cmd_ctx);
 125
 126 /* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
 127 int handle_init_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 128 {
 129
 130         if (argc!=0)
 131                 return ERROR_COMMAND_SYNTAX_ERROR;
 132
 133         int retval;
 134         static int initialized=0;
 135         if (initialized)
 136                 return ERROR_OK;
 137
 138         initialized=1;
 139
 140         atexit(exit_handler);
 141
 142         if (target_init(cmd_ctx) != ERROR_OK)
 143                 return ERROR_FAIL;
 144         LOG_DEBUG("target init complete");
 145
 146         if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
 147         {
 148                 /* we must be able to set up the jtag interface */
 149                 return retval;
 150         }
 151         LOG_DEBUG("jtag interface init complete");
 152
 153         /* Try to initialize & examine the JTAG chain at this point, but
 154          * continue startup regardless */
 155         if (jtag_init(cmd_ctx) == ERROR_OK)
 156         {
 157                 LOG_DEBUG("jtag init complete");
 158                 if (target_examine() == ERROR_OK)
 159                 {
 160                         LOG_DEBUG("jtag examine complete");
 161                 }
 162         }
 163
 164         if (flash_init_drivers(cmd_ctx) != ERROR_OK)
 165                 return ERROR_FAIL;
 166         LOG_DEBUG("flash init complete");
 167
 168         if (mflash_init_drivers(cmd_ctx) != ERROR_OK)
 169                 return ERROR_FAIL;
 170         LOG_DEBUG("mflash init complete");
 171
 172         if (nand_init(cmd_ctx) != ERROR_OK)
 173                 return ERROR_FAIL;
 174         LOG_DEBUG("NAND init complete");
 175
 176         if (pld_init(cmd_ctx) != ERROR_OK)
 177                 return ERROR_FAIL;
 178         LOG_DEBUG("pld init complete");
 179
 180         /* initialize tcp server */
 181         server_init();
 182
 183         /* initialize telnet subsystem */
 184         telnet_init("Open On-Chip Debugger");
 185         gdb_init();
 186         tcl_init(); /* allows tcl to just connect without going thru telnet */
 187
 188         target_register_event_callback(log_target_callback_event_handler, cmd_ctx);
 189
 190         return ERROR_OK;
 191 }
 192
 193 command_context_t *global_cmd_ctx;
 194
 195 command_context_t *setup_command_handler(void)
 196 {
 197         command_context_t *cmd_ctx;
 198
 199         global_cmd_ctx = cmd_ctx = command_init();
 200
 201         register_command(cmd_ctx, NULL, "version", handle_version_command,
 202                                          COMMAND_EXEC, "show OpenOCD version");
 203
 204         /* register subsystem commands */
 205         server_register_commands(cmd_ctx);
 206         telnet_register_commands(cmd_ctx);
 207         gdb_register_commands(cmd_ctx);
 208         tcl_register_commands(cmd_ctx); /* tcl server commands */
 209         log_register_commands(cmd_ctx);
 210         jtag_register_commands(cmd_ctx);
 211         xsvf_register_commands(cmd_ctx);
 212         target_register_commands(cmd_ctx);
 213         flash_register_commands(cmd_ctx);
 214         nand_register_commands(cmd_ctx);
 215         pld_register_commands(cmd_ctx);
 216         mflash_register_commands(cmd_ctx);
 217
 218         if (log_init(cmd_ctx) != ERROR_OK)
 219         {
 220                 exit(-1);
 221         }
 222         LOG_DEBUG("log init complete");
 223
 224         LOG_OUTPUT( OPENOCD_VERSION "\n" );
 225
 226         register_command(cmd_ctx, NULL, "init", handle_init_command,
 227                                          COMMAND_ANY, "initializes target and servers - nop on subsequent invocations");
 228
 229         return cmd_ctx;
 230 }
 231
 232 int httpd_start(void);
 233 void httpd_stop(void);
 234
 235 /* normally this is the main() function entry, but if OpenOCD is linked
 236  * into application, then this fn will not be invoked, but rather that
 237  * application will have it's own implementation of main(). */
 238 int openocd_main(int argc, char *argv[])
 239 {
 240         int ret;
 241
 242         /* initialize commandline interface */
 243         command_context_t *cmd_ctx;
 244
 245         cmd_ctx = setup_command_handler();
 246
 247 #if BUILD_IOUTIL
 248         if (ioutil_init(cmd_ctx) != ERROR_OK)
 249         {
 250                 return EXIT_FAILURE;
 251         }
 252 #endif
 253
 254         LOG_OUTPUT("\n\nBUGS? Read http://svn.berlios.de/svnroot/repos/openocd/trunk/BUGS\n\n\n");
 255
 256         print_version();
 257
 258         command_context_mode(cmd_ctx, COMMAND_CONFIG);
 259         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
 260
 261         if (parse_cmdline_args(cmd_ctx, argc, argv) != ERROR_OK)
 262                 return EXIT_FAILURE;
 263
 264         ret = parse_config_file(cmd_ctx);
 265         if ( (ret != ERROR_OK) && (ret != ERROR_COMMAND_CLOSE_CONNECTION) )
 266                 return EXIT_FAILURE;
 267
 268 #if BUILD_HTTPD
 269         if (httpd_start()!=ERROR_OK)
 270                 return EXIT_FAILURE;
 271 #endif
 272
 273         if (ret != ERROR_COMMAND_CLOSE_CONNECTION)
 274         {
 275                 command_context_mode(cmd_ctx, COMMAND_EXEC);
 276                 if (command_run_line(cmd_ctx, "init")!=ERROR_OK)
 277                         return EXIT_FAILURE;
 278
 279                 /* handle network connections */
 280                 server_loop(cmd_ctx);
 281         }
 282
 283         /* shut server down */
 284         server_quit();
 285
 286 #if BUILD_HTTPD
 287         httpd_stop();
 288 #endif
 289
 290         unregister_all_commands(cmd_ctx);
 291
 292         /* free commandline interface */
 293         command_done(cmd_ctx);
 294
 295
 296         return EXIT_SUCCESS;
 297 }