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wdenk5dfa25f2002-10-19 19:42:10 +00001/*
Detlev Zundel2dce5512009-03-25 17:27:52 +01002 * (C) Copyright 2000-2009
wdenk5dfa25f2002-10-19 19:42:10 +00003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
wdenk5dfa25f2002-10-19 19:42:10 +00006 */
7
8/*
9 * Command Processor Table
10 */
11
12#include <common.h>
13#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -070014#include <console.h>
Jason Hobbs4d91a6e2011-08-23 11:06:54 +000015#include <linux/ctype.h>
wdenk5dfa25f2002-10-19 19:42:10 +000016
wdenk5dfa25f2002-10-19 19:42:10 +000017/*
18 * Use puts() instead of printf() to avoid printf buffer overflow
19 * for long help messages
20 */
Detlev Zundel2dce5512009-03-25 17:27:52 +010021
Masahiro Yamada616e2162014-10-23 17:27:30 +090022int _do_help(cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t *cmdtp, int flag,
23 int argc, char * const argv[])
wdenk5dfa25f2002-10-19 19:42:10 +000024{
25 int i;
26 int rcode = 0;
27
Masahiro Yamada616e2162014-10-23 17:27:30 +090028 if (argc == 1) { /* show list of commands */
Anatolij Gustschin22b6fcb2012-11-08 12:40:17 +010029 cmd_tbl_t *cmd_array[cmd_items];
wdenk9d2b18a2003-06-28 23:11:04 +000030 int i, j, swaps;
wdenk8bde7f72003-06-27 21:31:46 +000031
wdenk9d2b18a2003-06-28 23:11:04 +000032 /* Make array of commands from .uboot_cmd section */
Detlev Zundel2dce5512009-03-25 17:27:52 +010033 cmdtp = cmd_start;
wdenk9d2b18a2003-06-28 23:11:04 +000034 for (i = 0; i < cmd_items; i++) {
35 cmd_array[i] = cmdtp++;
wdenk8bde7f72003-06-27 21:31:46 +000036 }
wdenk8bde7f72003-06-27 21:31:46 +000037
wdenk9d2b18a2003-06-28 23:11:04 +000038 /* Sort command list (trivial bubble sort) */
39 for (i = cmd_items - 1; i > 0; --i) {
40 swaps = 0;
41 for (j = 0; j < i; ++j) {
Masahiro Yamada616e2162014-10-23 17:27:30 +090042 if (strcmp(cmd_array[j]->name,
43 cmd_array[j + 1]->name) > 0) {
wdenk9d2b18a2003-06-28 23:11:04 +000044 cmd_tbl_t *tmp;
45 tmp = cmd_array[j];
46 cmd_array[j] = cmd_array[j + 1];
47 cmd_array[j + 1] = tmp;
48 ++swaps;
49 }
wdenk8bde7f72003-06-27 21:31:46 +000050 }
wdenk9d2b18a2003-06-28 23:11:04 +000051 if (!swaps)
52 break;
wdenk8bde7f72003-06-27 21:31:46 +000053 }
54
55 /* print short help (usage) */
wdenk9d2b18a2003-06-28 23:11:04 +000056 for (i = 0; i < cmd_items; i++) {
57 const char *usage = cmd_array[i]->usage;
58
wdenk5dfa25f2002-10-19 19:42:10 +000059 /* allow user abort */
Masahiro Yamada616e2162014-10-23 17:27:30 +090060 if (ctrlc())
wdenk5dfa25f2002-10-19 19:42:10 +000061 return 1;
wdenk9d2b18a2003-06-28 23:11:04 +000062 if (usage == NULL)
wdenk5dfa25f2002-10-19 19:42:10 +000063 continue;
Peter Tyser2fb26042009-01-27 18:03:12 -060064 printf("%-*s- %s\n", CONFIG_SYS_HELP_CMD_WIDTH,
65 cmd_array[i]->name, usage);
wdenk5dfa25f2002-10-19 19:42:10 +000066 }
wdenk5dfa25f2002-10-19 19:42:10 +000067 return 0;
68 }
wdenk5dfa25f2002-10-19 19:42:10 +000069 /*
70 * command help (long version)
71 */
wdenk8bde7f72003-06-27 21:31:46 +000072 for (i = 1; i < argc; ++i) {
Masahiro Yamada616e2162014-10-23 17:27:30 +090073 cmdtp = find_cmd_tbl(argv[i], cmd_start, cmd_items);
74 if (cmdtp != NULL) {
Wolfgang Denk94796d82009-05-24 19:17:29 +020075 rcode |= cmd_usage(cmdtp);
wdenk71f95112003-06-15 22:40:42 +000076 } else {
Masahiro Yamada616e2162014-10-23 17:27:30 +090077 printf("Unknown command '%s' - try 'help' without arguments for list of all known commands\n\n",
78 argv[i]);
wdenk5dfa25f2002-10-19 19:42:10 +000079 rcode = 1;
80 }
81 }
82 return rcode;
83}
84
Masahiro Yamada616e2162014-10-23 17:27:30 +090085/* find command table entry for a command */
86cmd_tbl_t *find_cmd_tbl(const char *cmd, cmd_tbl_t *table, int table_len)
wdenk5dfa25f2002-10-19 19:42:10 +000087{
Simon Glassf8bb6962016-03-19 02:18:38 -060088#ifdef CONFIG_CMDLINE
wdenk5dfa25f2002-10-19 19:42:10 +000089 cmd_tbl_t *cmdtp;
Masahiro Yamada616e2162014-10-23 17:27:30 +090090 cmd_tbl_t *cmdtp_temp = table; /* Init value */
wdenk9d2b18a2003-06-28 23:11:04 +000091 const char *p;
92 int len;
93 int n_found = 0;
wdenk8bde7f72003-06-27 21:31:46 +000094
Thomas Weber7013c062010-11-24 13:07:51 +010095 if (!cmd)
96 return NULL;
wdenk9d2b18a2003-06-28 23:11:04 +000097 /*
98 * Some commands allow length modifiers (like "cp.b");
99 * compare command name only until first dot.
100 */
101 len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
102
Masahiro Yamada616e2162014-10-23 17:27:30 +0900103 for (cmdtp = table; cmdtp != table + table_len; cmdtp++) {
104 if (strncmp(cmd, cmdtp->name, len) == 0) {
105 if (len == strlen(cmdtp->name))
wdenk9d2b18a2003-06-28 23:11:04 +0000106 return cmdtp; /* full match */
107
108 cmdtp_temp = cmdtp; /* abbreviated command ? */
109 n_found++;
110 }
wdenk5dfa25f2002-10-19 19:42:10 +0000111 }
wdenk9d2b18a2003-06-28 23:11:04 +0000112 if (n_found == 1) { /* exactly one match */
wdenk8bde7f72003-06-27 21:31:46 +0000113 return cmdtp_temp;
wdenk9d2b18a2003-06-28 23:11:04 +0000114 }
Simon Glassf8bb6962016-03-19 02:18:38 -0600115#endif /* CONFIG_CMDLINE */
wdenk8bde7f72003-06-27 21:31:46 +0000116
wdenk9d2b18a2003-06-28 23:11:04 +0000117 return NULL; /* not found or ambiguous command */
wdenk5dfa25f2002-10-19 19:42:10 +0000118}
wdenk04a85b32004-04-15 18:22:41 +0000119
Masahiro Yamada616e2162014-10-23 17:27:30 +0900120cmd_tbl_t *find_cmd(const char *cmd)
Kumar Galab799cb42008-09-23 10:05:02 -0500121{
Marek Vasut6c7c9462012-10-12 10:27:04 +0000122 cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd);
123 const int len = ll_entry_count(cmd_tbl_t, cmd);
124 return find_cmd_tbl(cmd, start, len);
Kumar Galab799cb42008-09-23 10:05:02 -0500125}
126
Mike Frysingere84ffdd2011-04-23 23:43:24 +0000127int cmd_usage(const cmd_tbl_t *cmdtp)
Peter Tyser62c3ae72009-01-27 18:03:10 -0600128{
Wolfgang Denk94796d82009-05-24 19:17:29 +0200129 printf("%s - %s\n\n", cmdtp->name, cmdtp->usage);
130
131#ifdef CONFIG_SYS_LONGHELP
132 printf("Usage:\n%s ", cmdtp->name);
133
134 if (!cmdtp->help) {
135 puts ("- No additional help available.\n");
136 return 1;
137 }
138
Masahiro Yamada616e2162014-10-23 17:27:30 +0900139 puts(cmdtp->help);
140 putc('\n');
Wolfgang Denk94796d82009-05-24 19:17:29 +0200141#endif /* CONFIG_SYS_LONGHELP */
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200142 return 1;
Peter Tyser62c3ae72009-01-27 18:03:10 -0600143}
144
wdenk04a85b32004-04-15 18:22:41 +0000145#ifdef CONFIG_AUTO_COMPLETE
146
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200147int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
wdenk04a85b32004-04-15 18:22:41 +0000148{
149 static char tmp_buf[512];
150 int space;
151
Jason Hobbs4d91a6e2011-08-23 11:06:54 +0000152 space = last_char == '\0' || isblank(last_char);
wdenk04a85b32004-04-15 18:22:41 +0000153
154 if (space && argc == 1)
155 return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
156
157 if (!space && argc == 2)
158 return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
Mike Frysinger560d4242010-12-17 16:51:59 -0500159
wdenk04a85b32004-04-15 18:22:41 +0000160 return 0;
161}
162
wdenk04a85b32004-04-15 18:22:41 +0000163/*************************************************************************************/
164
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200165static int complete_cmdv(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
wdenk04a85b32004-04-15 18:22:41 +0000166{
Simon Glassf8bb6962016-03-19 02:18:38 -0600167#ifdef CONFIG_CMDLINE
Marek Vasut6c7c9462012-10-12 10:27:04 +0000168 cmd_tbl_t *cmdtp = ll_entry_start(cmd_tbl_t, cmd);
169 const int count = ll_entry_count(cmd_tbl_t, cmd);
170 const cmd_tbl_t *cmdend = cmdtp + count;
wdenk04a85b32004-04-15 18:22:41 +0000171 const char *p;
172 int len, clen;
173 int n_found = 0;
174 const char *cmd;
175
176 /* sanity? */
177 if (maxv < 2)
178 return -2;
179
180 cmdv[0] = NULL;
181
182 if (argc == 0) {
183 /* output full list of commands */
Marek Vasut6c7c9462012-10-12 10:27:04 +0000184 for (; cmdtp != cmdend; cmdtp++) {
wdenk04a85b32004-04-15 18:22:41 +0000185 if (n_found >= maxv - 2) {
Andrew Gabbasov9b438942013-12-27 10:05:14 -0600186 cmdv[n_found++] = "...";
wdenk04a85b32004-04-15 18:22:41 +0000187 break;
188 }
Andrew Gabbasov9b438942013-12-27 10:05:14 -0600189 cmdv[n_found++] = cmdtp->name;
wdenk04a85b32004-04-15 18:22:41 +0000190 }
191 cmdv[n_found] = NULL;
192 return n_found;
193 }
194
195 /* more than one arg or one but the start of the next */
Masahiro Yamada616e2162014-10-23 17:27:30 +0900196 if (argc > 1 || last_char == '\0' || isblank(last_char)) {
wdenk04a85b32004-04-15 18:22:41 +0000197 cmdtp = find_cmd(argv[0]);
198 if (cmdtp == NULL || cmdtp->complete == NULL) {
199 cmdv[0] = NULL;
200 return 0;
201 }
202 return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
203 }
204
205 cmd = argv[0];
206 /*
207 * Some commands allow length modifiers (like "cp.b");
208 * compare command name only until first dot.
209 */
210 p = strchr(cmd, '.');
211 if (p == NULL)
212 len = strlen(cmd);
213 else
214 len = p - cmd;
215
216 /* return the partial matches */
Marek Vasut6c7c9462012-10-12 10:27:04 +0000217 for (; cmdtp != cmdend; cmdtp++) {
wdenk04a85b32004-04-15 18:22:41 +0000218
219 clen = strlen(cmdtp->name);
220 if (clen < len)
221 continue;
222
223 if (memcmp(cmd, cmdtp->name, len) != 0)
224 continue;
225
226 /* too many! */
227 if (n_found >= maxv - 2) {
228 cmdv[n_found++] = "...";
229 break;
230 }
231
232 cmdv[n_found++] = cmdtp->name;
233 }
234
235 cmdv[n_found] = NULL;
236 return n_found;
Simon Glassf8bb6962016-03-19 02:18:38 -0600237#else
238 return 0;
239#endif
wdenk04a85b32004-04-15 18:22:41 +0000240}
241
242static int make_argv(char *s, int argvsz, char *argv[])
243{
244 int argc = 0;
245
246 /* split into argv */
247 while (argc < argvsz - 1) {
248
249 /* skip any white space */
Jason Hobbs4d91a6e2011-08-23 11:06:54 +0000250 while (isblank(*s))
wdenk04a85b32004-04-15 18:22:41 +0000251 ++s;
252
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200253 if (*s == '\0') /* end of s, no more args */
wdenk04a85b32004-04-15 18:22:41 +0000254 break;
255
256 argv[argc++] = s; /* begin of argument string */
257
258 /* find end of string */
Jason Hobbs4d91a6e2011-08-23 11:06:54 +0000259 while (*s && !isblank(*s))
wdenk04a85b32004-04-15 18:22:41 +0000260 ++s;
261
262 if (*s == '\0') /* end of s, no more args */
263 break;
264
265 *s++ = '\0'; /* terminate current arg */
266 }
267 argv[argc] = NULL;
268
269 return argc;
270}
271
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200272static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char * const argv[])
wdenk04a85b32004-04-15 18:22:41 +0000273{
274 int ll = leader != NULL ? strlen(leader) : 0;
275 int sl = sep != NULL ? strlen(sep) : 0;
276 int len, i;
277
278 if (banner) {
279 puts("\n");
280 puts(banner);
281 }
282
283 i = linemax; /* force leader and newline */
284 while (*argv != NULL) {
285 len = strlen(*argv) + sl;
286 if (i + len >= linemax) {
287 puts("\n");
288 if (leader)
289 puts(leader);
290 i = ll - sl;
291 } else if (sep)
292 puts(sep);
293 puts(*argv++);
294 i += len;
295 }
296 printf("\n");
297}
298
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200299static int find_common_prefix(char * const argv[])
wdenk04a85b32004-04-15 18:22:41 +0000300{
301 int i, len;
302 char *anchor, *s, *t;
303
304 if (*argv == NULL)
305 return 0;
306
307 /* begin with max */
308 anchor = *argv++;
309 len = strlen(anchor);
310 while ((t = *argv++) != NULL) {
311 s = anchor;
312 for (i = 0; i < len; i++, t++, s++) {
313 if (*t != *s)
314 break;
315 }
316 len = s - anchor;
317 }
318 return len;
319}
320
Heinrich Schuchardt2614a202017-11-19 23:07:50 +0100321static char tmp_buf[CONFIG_SYS_CBSIZE + 1]; /* copy of console I/O buffer */
wdenk04a85b32004-04-15 18:22:41 +0000322
323int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
324{
325 int n = *np, col = *colp;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200326 char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
wdenk04a85b32004-04-15 18:22:41 +0000327 char *cmdv[20];
328 char *s, *t;
329 const char *sep;
330 int i, j, k, len, seplen, argc;
331 int cnt;
332 char last_char;
333
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200334 if (strcmp(prompt, CONFIG_SYS_PROMPT) != 0)
wdenk04a85b32004-04-15 18:22:41 +0000335 return 0; /* not in normal console */
336
337 cnt = strlen(buf);
338 if (cnt >= 1)
339 last_char = buf[cnt - 1];
340 else
341 last_char = '\0';
342
343 /* copy to secondary buffer which will be affected */
344 strcpy(tmp_buf, buf);
345
346 /* separate into argv */
347 argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
348
349 /* do the completion and return the possible completions */
Masahiro Yamada616e2162014-10-23 17:27:30 +0900350 i = complete_cmdv(argc, argv, last_char,
351 sizeof(cmdv) / sizeof(cmdv[0]), cmdv);
wdenk04a85b32004-04-15 18:22:41 +0000352
353 /* no match; bell and out */
354 if (i == 0) {
355 if (argc > 1) /* allow tab for non command */
356 return 0;
357 putc('\a');
358 return 1;
359 }
360
361 s = NULL;
362 len = 0;
363 sep = NULL;
364 seplen = 0;
365 if (i == 1) { /* one match; perfect */
366 k = strlen(argv[argc - 1]);
367 s = cmdv[0] + k;
368 len = strlen(s);
369 sep = " ";
370 seplen = 1;
Masahiro Yamada616e2162014-10-23 17:27:30 +0900371 } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */
wdenk04a85b32004-04-15 18:22:41 +0000372 k = strlen(argv[argc - 1]);
373 j -= k;
374 if (j > 0) {
375 s = cmdv[0] + k;
376 len = j;
377 }
378 }
379
380 if (s != NULL) {
381 k = len + seplen;
382 /* make sure it fits */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200383 if (n + k >= CONFIG_SYS_CBSIZE - 2) {
wdenk04a85b32004-04-15 18:22:41 +0000384 putc('\a');
385 return 1;
386 }
387
388 t = buf + cnt;
389 for (i = 0; i < len; i++)
390 *t++ = *s++;
391 if (sep != NULL)
392 for (i = 0; i < seplen; i++)
393 *t++ = sep[i];
394 *t = '\0';
395 n += k;
396 col += k;
397 puts(t - k);
398 if (sep == NULL)
399 putc('\a');
400 *np = n;
401 *colp = col;
402 } else {
403 print_argv(NULL, " ", " ", 78, cmdv);
404
405 puts(prompt);
406 puts(buf);
407 }
408 return 1;
409}
410
411#endif
Jean-Christophe PLAGNIOL-VILLARD8a40fb12008-09-10 22:48:05 +0200412
413#ifdef CMD_DATA_SIZE
414int cmd_get_data_size(char* arg, int default_size)
415{
416 /* Check for a size specification .b, .w or .l.
417 */
418 int len = strlen(arg);
419 if (len > 2 && arg[len-2] == '.') {
Masahiro Yamada616e2162014-10-23 17:27:30 +0900420 switch (arg[len-1]) {
Jean-Christophe PLAGNIOL-VILLARD8a40fb12008-09-10 22:48:05 +0200421 case 'b':
422 return 1;
423 case 'w':
424 return 2;
425 case 'l':
426 return 4;
York Sun4d1fd7f2014-02-26 17:03:19 -0800427#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
428 case 'q':
429 return 8;
430#endif
Jean-Christophe PLAGNIOL-VILLARD8a40fb12008-09-10 22:48:05 +0200431 case 's':
432 return -2;
433 default:
434 return -1;
435 }
436 }
437 return default_size;
438}
439#endif
Heiko Schocher620f1f62010-09-17 13:10:33 +0200440
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200441#if defined(CONFIG_NEEDS_MANUAL_RELOC)
Heiko Schocher620f1f62010-09-17 13:10:33 +0200442DECLARE_GLOBAL_DATA_PTR;
443
444void fixup_cmdtable(cmd_tbl_t *cmdtp, int size)
445{
446 int i;
447
448 if (gd->reloc_off == 0)
449 return;
450
451 for (i = 0; i < size; i++) {
452 ulong addr;
453
Masahiro Yamada616e2162014-10-23 17:27:30 +0900454 addr = (ulong)(cmdtp->cmd) + gd->reloc_off;
Kun-Hua Huang2e88bb22015-08-24 14:52:35 +0800455#ifdef DEBUG_COMMANDS
Heiko Schocher620f1f62010-09-17 13:10:33 +0200456 printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
Masahiro Yamada616e2162014-10-23 17:27:30 +0900457 cmdtp->name, (ulong)(cmdtp->cmd), addr);
Heiko Schocher620f1f62010-09-17 13:10:33 +0200458#endif
459 cmdtp->cmd =
460 (int (*)(struct cmd_tbl_s *, int, int, char * const []))addr;
461 addr = (ulong)(cmdtp->name) + gd->reloc_off;
462 cmdtp->name = (char *)addr;
463 if (cmdtp->usage) {
464 addr = (ulong)(cmdtp->usage) + gd->reloc_off;
465 cmdtp->usage = (char *)addr;
466 }
467#ifdef CONFIG_SYS_LONGHELP
468 if (cmdtp->help) {
469 addr = (ulong)(cmdtp->help) + gd->reloc_off;
470 cmdtp->help = (char *)addr;
471 }
472#endif
Daniel Schwierzeckfa28bd22011-10-13 06:07:39 +0000473#ifdef CONFIG_AUTO_COMPLETE
474 if (cmdtp->complete) {
475 addr = (ulong)(cmdtp->complete) + gd->reloc_off;
Daniel Schwierzeck3668d8f2011-10-18 11:12:22 +0000476 cmdtp->complete =
477 (int (*)(int, char * const [], char, int, char * []))addr;
Daniel Schwierzeckfa28bd22011-10-13 06:07:39 +0000478 }
479#endif
Heiko Schocher620f1f62010-09-17 13:10:33 +0200480 cmdtp++;
481 }
482}
483#endif
Simon Glassbdf8e342012-02-14 19:59:23 +0000484
485/**
486 * Call a command function. This should be the only route in U-Boot to call
487 * a command, so that we can track whether we are waiting for input or
488 * executing a command.
489 *
490 * @param cmdtp Pointer to the command to execute
491 * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
492 * @param argc Number of arguments (arg 0 must be the command text)
493 * @param argv Arguments
494 * @return 0 if command succeeded, else non-zero (CMD_RET_...)
495 */
Simon Glass9d12d5d2012-02-14 19:59:25 +0000496static int cmd_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Simon Glassbdf8e342012-02-14 19:59:23 +0000497{
498 int result;
499
500 result = (cmdtp->cmd)(cmdtp, flag, argc, argv);
501 if (result)
Peng Fan58b6ad62015-07-28 22:45:37 +0800502 debug("Command failed, result=%d\n", result);
Simon Glassbdf8e342012-02-14 19:59:23 +0000503 return result;
504}
Simon Glass9d12d5d2012-02-14 19:59:25 +0000505
506enum command_ret_t cmd_process(int flag, int argc, char * const argv[],
Richard Genoud34765e82012-12-03 06:28:28 +0000507 int *repeatable, ulong *ticks)
Simon Glass9d12d5d2012-02-14 19:59:25 +0000508{
509 enum command_ret_t rc = CMD_RET_SUCCESS;
510 cmd_tbl_t *cmdtp;
511
512 /* Look up command in command table */
513 cmdtp = find_cmd(argv[0]);
514 if (cmdtp == NULL) {
515 printf("Unknown command '%s' - try 'help'\n", argv[0]);
516 return 1;
517 }
518
519 /* found - check max args */
520 if (argc > cmdtp->maxargs)
521 rc = CMD_RET_USAGE;
522
523#if defined(CONFIG_CMD_BOOTD)
524 /* avoid "bootd" recursion */
525 else if (cmdtp->cmd == do_bootd) {
526 if (flag & CMD_FLAG_BOOTD) {
527 puts("'bootd' recursion detected\n");
528 rc = CMD_RET_FAILURE;
529 } else {
530 flag |= CMD_FLAG_BOOTD;
531 }
532 }
533#endif
534
535 /* If OK so far, then do the command */
536 if (!rc) {
Richard Genoud34765e82012-12-03 06:28:28 +0000537 if (ticks)
538 *ticks = get_timer(0);
Simon Glass9d12d5d2012-02-14 19:59:25 +0000539 rc = cmd_call(cmdtp, flag, argc, argv);
Richard Genoud34765e82012-12-03 06:28:28 +0000540 if (ticks)
541 *ticks = get_timer(*ticks);
Simon Glass9d12d5d2012-02-14 19:59:25 +0000542 *repeatable &= cmdtp->repeatable;
543 }
544 if (rc == CMD_RET_USAGE)
545 rc = cmd_usage(cmdtp);
546 return rc;
547}
Simon Glass16ff9902014-02-26 15:59:15 -0700548
549int cmd_process_error(cmd_tbl_t *cmdtp, int err)
550{
551 if (err) {
552 printf("Command '%s' failed: Error %d\n", cmdtp->name, err);
553 return 1;
554 }
555
556 return 0;
557}