split "interface" commands from "jtag" ones
[openocd.git] / src / openocd.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind 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 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include "openocd.h"
32 #include <jtag/driver.h>
33 #include <jtag/jtag.h>
34 #include <helper/ioutil.h>
35 #include <helper/configuration.h>
36 #include <xsvf/xsvf.h>
37 #include <svf/svf.h>
38 #include <flash/nor/core.h>
39 #include <flash/nand/core.h>
40 #include <pld/pld.h>
41 #include <flash/mflash.h>
42
43 #include <server/server.h>
44 #include <server/gdb_server.h>
45 #include <server/httpd.h>
46
47 #ifdef HAVE_STRINGS_H
48 #include <strings.h>
49 #endif
50
51
52 #define OPENOCD_VERSION \
53 "Open On-Chip Debugger " VERSION RELSTR " (" PKGBLDDATE ")"
54
55 /* Give TELNET a way to find out what version this is */
56 COMMAND_HANDLER(handle_version_command)
57 {
58 if (CMD_ARGC != 0)
59 return ERROR_COMMAND_SYNTAX_ERROR;
60
61 command_print(CMD_CTX, OPENOCD_VERSION);
62
63 return ERROR_OK;
64 }
65
66 static int log_target_callback_event_handler(struct target *target, enum target_event event, void *priv)
67 {
68 switch (event)
69 {
70 case TARGET_EVENT_GDB_START:
71 target->display = 0;
72 break;
73 case TARGET_EVENT_GDB_END:
74 target->display = 1;
75 break;
76 case TARGET_EVENT_HALTED:
77 if (target->display)
78 {
79 /* do not display information when debugger caused the halt */
80 target_arch_state(target);
81 }
82 break;
83 default:
84 break;
85 }
86
87 return ERROR_OK;
88 }
89
90 static bool init_at_startup = true;
91
92 COMMAND_HANDLER(handle_noinit_command)
93 {
94 if (CMD_ARGC != 0)
95 return ERROR_COMMAND_SYNTAX_ERROR;
96 init_at_startup = false;
97 return ERROR_OK;
98 }
99
100 /* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
101 COMMAND_HANDLER(handle_init_command)
102 {
103
104 if (CMD_ARGC != 0)
105 return ERROR_COMMAND_SYNTAX_ERROR;
106
107 int retval;
108 static int initialized = 0;
109 if (initialized)
110 return ERROR_OK;
111
112 initialized = 1;
113
114 retval = command_run_line(CMD_CTX, "target init");
115 if (ERROR_OK != retval)
116 return ERROR_FAIL;
117
118 if ((retval = jtag_interface_init(CMD_CTX)) != ERROR_OK)
119 {
120 /* we must be able to set up the jtag interface */
121 return retval;
122 }
123 LOG_DEBUG("jtag interface init complete");
124
125 /* Try to initialize & examine the JTAG chain at this point,
126 * but continue startup regardless. Note that platforms
127 * need to be able to provide JTAG event handlers that use
128 * a variety of JTAG operations in order to do that...
129 */
130 command_context_mode(CMD_CTX, COMMAND_EXEC);
131 if (command_run_line(CMD_CTX, "jtag init") == ERROR_OK)
132 {
133 LOG_DEBUG("Examining targets...");
134 if (target_examine() != ERROR_OK)
135 LOG_DEBUG("target examination failed");
136 }
137 else
138 LOG_WARNING("jtag initialization failed; try 'jtag init' again.");
139 command_context_mode(CMD_CTX, COMMAND_CONFIG);
140
141 if (command_run_line(CMD_CTX, "flash init") != ERROR_OK)
142 return ERROR_FAIL;
143
144 if (command_run_line(CMD_CTX, "mflash init") != ERROR_OK)
145 return ERROR_FAIL;
146
147 if (command_run_line(CMD_CTX, "nand init") != ERROR_OK)
148 return ERROR_FAIL;
149
150 if (command_run_line(CMD_CTX, "pld init") != ERROR_OK)
151 return ERROR_FAIL;
152 command_context_mode(CMD_CTX, COMMAND_EXEC);
153
154 /* initialize telnet subsystem */
155 gdb_target_add_all(all_targets);
156
157 target_register_event_callback(log_target_callback_event_handler, CMD_CTX);
158
159 return ERROR_OK;
160 }
161
162 static const struct command_registration openocd_command_handlers[] = {
163 {
164 .name = "version",
165 .handler = &handle_version_command,
166 .mode = COMMAND_ANY,
167 .help = "show program version",
168 },
169 {
170 .name = "noinit",
171 .handler = &handle_noinit_command,
172 .mode = COMMAND_CONFIG,
173 .help = "Prevent 'init' from being called at startup.",
174 },
175 {
176 .name = "init",
177 .handler = &handle_init_command,
178 .mode = COMMAND_ANY,
179 .help = "Initializes configured targets and servers. "
180 "Changes command mode from CONFIG to EXEC. "
181 "Unless 'noinit' is called, this command is "
182 "called automatically at the end of startup.",
183
184 },
185 COMMAND_REGISTRATION_DONE
186 };
187
188 int openocd_register_commands(struct command_context *cmd_ctx)
189 {
190 return register_commands(cmd_ctx, NULL, openocd_command_handlers);
191 }
192
193 struct command_context *global_cmd_ctx;
194
195 /* NB! this fn can be invoked outside this file for non PC hosted builds */
196 struct command_context *setup_command_handler(Jim_Interp *interp)
197 {
198 log_init();
199 LOG_DEBUG("log_init: complete");
200
201 const char *startup = openocd_startup_tcl;
202 struct command_context *cmd_ctx = command_init(startup, interp);
203
204 /* register subsystem commands */
205 typedef int (*command_registrant_t)(struct command_context *cmd_ctx);
206 static const command_registrant_t command_registrants[] = {
207 &openocd_register_commands,
208 &server_register_commands,
209 &gdb_register_commands,
210 &log_register_commands,
211 &interface_register_commands,
212 &jtag_register_commands,
213 &xsvf_register_commands,
214 &svf_register_commands,
215 &target_register_commands,
216 &flash_register_commands,
217 &nand_register_commands,
218 &pld_register_commands,
219 &mflash_register_commands,
220 NULL
221 };
222 for (unsigned i = 0; NULL != command_registrants[i]; i++)
223 {
224 int retval = (*command_registrants[i])(cmd_ctx);
225 if (ERROR_OK != retval)
226 {
227 command_done(cmd_ctx);
228 return NULL;
229 }
230 }
231 LOG_DEBUG("command registration: complete");
232
233 LOG_OUTPUT(OPENOCD_VERSION "\n"
234 "Licensed under GNU GPL v2\n");
235
236 global_cmd_ctx = cmd_ctx;
237
238 return cmd_ctx;
239 }
240
241 /* normally this is the main() function entry, but if OpenOCD is linked
242 * into application, then this fn will not be invoked, but rather that
243 * application will have it's own implementation of main(). */
244 int openocd_main(int argc, char *argv[])
245 {
246 int ret;
247
248 /* initialize commandline interface */
249 struct command_context *cmd_ctx;
250
251 cmd_ctx = setup_command_handler(NULL);
252
253 if (ioutil_init(cmd_ctx) != ERROR_OK)
254 return EXIT_FAILURE;
255
256 LOG_OUTPUT("For bug reports, read\n\t"
257 "http://openocd.berlios.de/doc/doxygen/bugs.html"
258 "\n");
259
260 command_context_mode(cmd_ctx, COMMAND_CONFIG);
261 command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
262
263 if (parse_cmdline_args(cmd_ctx, argc, argv) != ERROR_OK)
264 return EXIT_FAILURE;
265
266 if (server_preinit() != ERROR_OK)
267 return EXIT_FAILURE;
268
269 ret = parse_config_file(cmd_ctx);
270 if (ret != ERROR_OK)
271 return EXIT_FAILURE;
272
273 if (httpd_start(cmd_ctx) != ERROR_OK)
274 return EXIT_FAILURE;
275
276 ret = server_init(cmd_ctx);
277 if (ERROR_OK != ret)
278 return EXIT_FAILURE;
279
280 if (init_at_startup)
281 {
282 ret = command_run_line(cmd_ctx, "init");
283 if (ERROR_OK != ret)
284 ret = EXIT_FAILURE;
285 }
286
287 /* handle network connections */
288 if (ERROR_OK == ret)
289 server_loop(cmd_ctx);
290
291 server_quit();
292
293 httpd_stop();
294
295 unregister_all_commands(cmd_ctx, NULL);
296
297 /* free commandline interface */
298 command_done(cmd_ctx);
299
300 jtag_interface_quit();
301
302 return ret;
303 }