Change return value on error.
[openocd.git] / src / pld / pld.c
1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "pld.h"
25 #include <helper/log.h>
26 #include <helper/time_support.h>
27
28
29 /* pld drivers
30 */
31 extern struct pld_driver virtex2_pld;
32
33 static struct pld_driver *pld_drivers[] =
34 {
35 &virtex2_pld,
36 NULL,
37 };
38
39 static struct pld_device *pld_devices;
40
41 struct pld_device *get_pld_device_by_num(int num)
42 {
43 struct pld_device *p;
44 int i = 0;
45
46 for (p = pld_devices; p; p = p->next)
47 {
48 if (i++ == num)
49 {
50 return p;
51 }
52 }
53
54 return NULL;
55 }
56
57 /* pld device <driver> [driver_options ...]
58 */
59 COMMAND_HANDLER(handle_pld_device_command)
60 {
61 int i;
62 int found = 0;
63
64 if (CMD_ARGC < 1)
65 {
66 return ERROR_COMMAND_SYNTAX_ERROR;
67 }
68
69 for (i = 0; pld_drivers[i]; i++)
70 {
71 if (strcmp(CMD_ARGV[0], pld_drivers[i]->name) == 0)
72 {
73 struct pld_device *p, *c;
74
75 /* register pld specific commands */
76 int retval;
77 if (pld_drivers[i]->commands) {
78 retval = register_commands(CMD_CTX, NULL,
79 pld_drivers[i]->commands);
80 if (ERROR_OK != retval)
81 {
82 LOG_ERROR("couldn't register '%s' commands", CMD_ARGV[0]);
83 return ERROR_FAIL;
84 }
85 }
86
87 c = malloc(sizeof(struct pld_device));
88 c->driver = pld_drivers[i];
89 c->next = NULL;
90
91 retval = CALL_COMMAND_HANDLER(
92 pld_drivers[i]->pld_device_command, c);
93 if (ERROR_OK != retval)
94 {
95 LOG_ERROR("'%s' driver rejected pld device",
96 CMD_ARGV[0]);
97 free(c);
98 return ERROR_OK;
99 }
100
101 /* put pld device in linked list */
102 if (pld_devices)
103 {
104 /* find last pld device */
105 for (p = pld_devices; p && p->next; p = p->next);
106 if (p)
107 p->next = c;
108 }
109 else
110 {
111 pld_devices = c;
112 }
113
114 found = 1;
115 }
116 }
117
118 /* no matching pld driver found */
119 if (!found)
120 {
121 LOG_ERROR("pld driver '%s' not found", CMD_ARGV[0]);
122 exit(-1);
123 }
124
125 return ERROR_OK;
126 }
127
128 COMMAND_HANDLER(handle_pld_devices_command)
129 {
130 struct pld_device *p;
131 int i = 0;
132
133 if (!pld_devices)
134 {
135 command_print(CMD_CTX, "no pld devices configured");
136 return ERROR_OK;
137 }
138
139 for (p = pld_devices; p; p = p->next)
140 {
141 command_print(CMD_CTX, "#%i: %s", i++, p->driver->name);
142 }
143
144 return ERROR_OK;
145 }
146
147 COMMAND_HANDLER(handle_pld_load_command)
148 {
149 int retval;
150 struct timeval start, end, duration;
151 struct pld_device *p;
152
153 gettimeofday(&start, NULL);
154
155 if (CMD_ARGC < 2)
156 {
157 return ERROR_COMMAND_SYNTAX_ERROR;
158 }
159
160 unsigned dev_id;
161 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
162 p = get_pld_device_by_num(dev_id);
163 if (!p)
164 {
165 command_print(CMD_CTX, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
166 return ERROR_OK;
167 }
168
169 if ((retval = p->driver->load(p, CMD_ARGV[1])) != ERROR_OK)
170 {
171 command_print(CMD_CTX, "failed loading file %s to pld device %u",
172 CMD_ARGV[1], dev_id);
173 switch (retval)
174 {
175 }
176 return retval;
177 }
178 else
179 {
180 gettimeofday(&end, NULL);
181 timeval_subtract(&duration, &end, &start);
182
183 command_print(CMD_CTX, "loaded file %s to pld device %u in %jis %jius",
184 CMD_ARGV[1], dev_id,
185 (intmax_t)duration.tv_sec, (intmax_t)duration.tv_usec);
186 }
187
188 return ERROR_OK;
189 }
190
191 static const struct command_registration pld_exec_command_handlers[] = {
192 {
193 .name = "devices",
194 .handler = handle_pld_devices_command,
195 .mode = COMMAND_EXEC,
196 .help = "list configured pld devices",
197 },
198 {
199 .name = "load",
200 .handler = handle_pld_load_command,
201 .mode = COMMAND_EXEC,
202 .help = "load configuration file into PLD",
203 .usage = "pld_num filename",
204 },
205 COMMAND_REGISTRATION_DONE
206 };
207
208 static int pld_init(struct command_context *cmd_ctx)
209 {
210 if (!pld_devices)
211 return ERROR_OK;
212
213 struct command *parent = command_find_in_context(cmd_ctx, "pld");
214 return register_commands(cmd_ctx, parent, pld_exec_command_handlers);
215 }
216
217 COMMAND_HANDLER(handle_pld_init_command)
218 {
219 if (CMD_ARGC != 0)
220 return ERROR_COMMAND_SYNTAX_ERROR;
221
222 static bool pld_initialized = false;
223 if (pld_initialized)
224 {
225 LOG_INFO("'pld init' has already been called");
226 return ERROR_OK;
227 }
228 pld_initialized = true;
229
230 LOG_DEBUG("Initializing PLDs...");
231 return pld_init(CMD_CTX);
232 }
233
234 static const struct command_registration pld_config_command_handlers[] = {
235 {
236 .name = "device",
237 .mode = COMMAND_CONFIG,
238 .handler = handle_pld_device_command,
239 .help = "configure a PLD device",
240 .usage = "driver_name [driver_args ... ]",
241 },
242 {
243 .name = "init",
244 .mode = COMMAND_CONFIG,
245 .handler = handle_pld_init_command,
246 .help = "initialize PLD devices",
247 },
248 COMMAND_REGISTRATION_DONE
249 };
250 static const struct command_registration pld_command_handler[] = {
251 {
252 .name = "pld",
253 .mode = COMMAND_ANY,
254 .help = "programmable logic device commands",
255 .chain = pld_config_command_handlers,
256 },
257 COMMAND_REGISTRATION_DONE
258 };
259 int pld_register_commands(struct command_context *cmd_ctx)
260 {
261 return register_commands(cmd_ctx, NULL, pld_command_handler);
262 }