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Commit | Line | Data |
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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
5dfa25f2 | 2 | /* |
2dce551e | 3 | * (C) Copyright 2000-2009 |
5dfa25f2 | 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
5dfa25f2 WD |
5 | */ |
6 | ||
7 | /* | |
8 | * Command Processor Table | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
a33a8242 | 12 | #include <compiler.h> |
5dfa25f2 | 13 | #include <command.h> |
24b852a7 | 14 | #include <console.h> |
af95f206 | 15 | #include <env.h> |
30f3333d | 16 | #include <image.h> |
f7ae49fc | 17 | #include <log.h> |
30f3333d | 18 | #include <mapmem.h> |
401d1c4f | 19 | #include <asm/global_data.h> |
4d91a6ec | 20 | #include <linux/ctype.h> |
5dfa25f2 | 21 | |
7cf5b405 HS |
22 | DECLARE_GLOBAL_DATA_PTR; |
23 | ||
5dfa25f2 WD |
24 | /* |
25 | * Use puts() instead of printf() to avoid printf buffer overflow | |
26 | * for long help messages | |
27 | */ | |
2dce551e | 28 | |
09140113 SG |
29 | int _do_help(struct cmd_tbl *cmd_start, int cmd_items, struct cmd_tbl *cmdtp, |
30 | int flag, int argc, char *const argv[]) | |
5dfa25f2 WD |
31 | { |
32 | int i; | |
33 | int rcode = 0; | |
34 | ||
616e2162 | 35 | if (argc == 1) { /* show list of commands */ |
09140113 | 36 | struct cmd_tbl *cmd_array[cmd_items]; |
9d2b18a0 WD |
37 | int i, j, swaps; |
38 | ||
39 | /* Make array of commands from .uboot_cmd section */ | |
2dce551e | 40 | cmdtp = cmd_start; |
9d2b18a0 WD |
41 | for (i = 0; i < cmd_items; i++) { |
42 | cmd_array[i] = cmdtp++; | |
8bde7f77 | 43 | } |
8bde7f77 | 44 | |
9d2b18a0 WD |
45 | /* Sort command list (trivial bubble sort) */ |
46 | for (i = cmd_items - 1; i > 0; --i) { | |
47 | swaps = 0; | |
48 | for (j = 0; j < i; ++j) { | |
616e2162 MY |
49 | if (strcmp(cmd_array[j]->name, |
50 | cmd_array[j + 1]->name) > 0) { | |
09140113 | 51 | struct cmd_tbl *tmp; |
9d2b18a0 WD |
52 | tmp = cmd_array[j]; |
53 | cmd_array[j] = cmd_array[j + 1]; | |
54 | cmd_array[j + 1] = tmp; | |
55 | ++swaps; | |
56 | } | |
8bde7f77 | 57 | } |
9d2b18a0 WD |
58 | if (!swaps) |
59 | break; | |
8bde7f77 | 60 | } |
5dfa25f2 | 61 | |
8bde7f77 | 62 | /* print short help (usage) */ |
9d2b18a0 WD |
63 | for (i = 0; i < cmd_items; i++) { |
64 | const char *usage = cmd_array[i]->usage; | |
65 | ||
5dfa25f2 | 66 | /* allow user abort */ |
616e2162 | 67 | if (ctrlc()) |
5dfa25f2 | 68 | return 1; |
9d2b18a0 | 69 | if (usage == NULL) |
5dfa25f2 | 70 | continue; |
2fb2604d PT |
71 | printf("%-*s- %s\n", CONFIG_SYS_HELP_CMD_WIDTH, |
72 | cmd_array[i]->name, usage); | |
5dfa25f2 | 73 | } |
5dfa25f2 WD |
74 | return 0; |
75 | } | |
5dfa25f2 WD |
76 | /* |
77 | * command help (long version) | |
78 | */ | |
8bde7f77 | 79 | for (i = 1; i < argc; ++i) { |
616e2162 MY |
80 | cmdtp = find_cmd_tbl(argv[i], cmd_start, cmd_items); |
81 | if (cmdtp != NULL) { | |
94796d85 | 82 | rcode |= cmd_usage(cmdtp); |
71f95118 | 83 | } else { |
616e2162 MY |
84 | printf("Unknown command '%s' - try 'help' without arguments for list of all known commands\n\n", |
85 | argv[i]); | |
5dfa25f2 WD |
86 | rcode = 1; |
87 | } | |
88 | } | |
89 | return rcode; | |
90 | } | |
91 | ||
616e2162 | 92 | /* find command table entry for a command */ |
09140113 SG |
93 | struct cmd_tbl *find_cmd_tbl(const char *cmd, struct cmd_tbl *table, |
94 | int table_len) | |
5dfa25f2 | 95 | { |
f8bb6964 | 96 | #ifdef CONFIG_CMDLINE |
09140113 SG |
97 | struct cmd_tbl *cmdtp; |
98 | struct cmd_tbl *cmdtp_temp = table; /* Init value */ | |
9d2b18a0 WD |
99 | const char *p; |
100 | int len; | |
101 | int n_found = 0; | |
102 | ||
7013c061 TW |
103 | if (!cmd) |
104 | return NULL; | |
9d2b18a0 WD |
105 | /* |
106 | * Some commands allow length modifiers (like "cp.b"); | |
107 | * compare command name only until first dot. | |
108 | */ | |
109 | len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd); | |
110 | ||
616e2162 MY |
111 | for (cmdtp = table; cmdtp != table + table_len; cmdtp++) { |
112 | if (strncmp(cmd, cmdtp->name, len) == 0) { | |
113 | if (len == strlen(cmdtp->name)) | |
9d2b18a0 WD |
114 | return cmdtp; /* full match */ |
115 | ||
116 | cmdtp_temp = cmdtp; /* abbreviated command ? */ | |
117 | n_found++; | |
118 | } | |
5dfa25f2 | 119 | } |
9d2b18a0 | 120 | if (n_found == 1) { /* exactly one match */ |
8bde7f77 | 121 | return cmdtp_temp; |
9d2b18a0 | 122 | } |
f8bb6964 | 123 | #endif /* CONFIG_CMDLINE */ |
5dfa25f2 | 124 | |
9d2b18a0 | 125 | return NULL; /* not found or ambiguous command */ |
8bde7f77 | 126 | } |
04a85b3b | 127 | |
09140113 | 128 | struct cmd_tbl *find_cmd(const char *cmd) |
b799cb4c | 129 | { |
09140113 SG |
130 | struct cmd_tbl *start = ll_entry_start(struct cmd_tbl, cmd); |
131 | const int len = ll_entry_count(struct cmd_tbl, cmd); | |
6c7c946c | 132 | return find_cmd_tbl(cmd, start, len); |
b799cb4c KG |
133 | } |
134 | ||
09140113 | 135 | int cmd_usage(const struct cmd_tbl *cmdtp) |
62c3ae7c | 136 | { |
94796d85 WD |
137 | printf("%s - %s\n\n", cmdtp->name, cmdtp->usage); |
138 | ||
139 | #ifdef CONFIG_SYS_LONGHELP | |
140 | printf("Usage:\n%s ", cmdtp->name); | |
141 | ||
142 | if (!cmdtp->help) { | |
143 | puts ("- No additional help available.\n"); | |
144 | return 1; | |
145 | } | |
146 | ||
616e2162 MY |
147 | puts(cmdtp->help); |
148 | putc('\n'); | |
94796d85 | 149 | #endif /* CONFIG_SYS_LONGHELP */ |
47e26b1b | 150 | return 1; |
62c3ae7c PT |
151 | } |
152 | ||
04a85b3b | 153 | #ifdef CONFIG_AUTO_COMPLETE |
03dcf17d | 154 | static char env_complete_buf[512]; |
04a85b3b | 155 | |
09140113 SG |
156 | int var_complete(int argc, char *const argv[], char last_char, int maxv, |
157 | char *cmdv[]) | |
04a85b3b | 158 | { |
04a85b3b WD |
159 | int space; |
160 | ||
4d91a6ec | 161 | space = last_char == '\0' || isblank(last_char); |
04a85b3b WD |
162 | |
163 | if (space && argc == 1) | |
03dcf17d BB |
164 | return env_complete("", maxv, cmdv, sizeof(env_complete_buf), |
165 | env_complete_buf, false); | |
04a85b3b WD |
166 | |
167 | if (!space && argc == 2) | |
03dcf17d BB |
168 | return env_complete(argv[1], maxv, cmdv, |
169 | sizeof(env_complete_buf), | |
170 | env_complete_buf, false); | |
560d424b | 171 | |
04a85b3b WD |
172 | return 0; |
173 | } | |
174 | ||
09140113 | 175 | static int dollar_complete(int argc, char *const argv[], char last_char, |
03dcf17d BB |
176 | int maxv, char *cmdv[]) |
177 | { | |
178 | /* Make sure the last argument starts with a $. */ | |
179 | if (argc < 1 || argv[argc - 1][0] != '$' || | |
180 | last_char == '\0' || isblank(last_char)) | |
181 | return 0; | |
182 | ||
183 | return env_complete(argv[argc - 1], maxv, cmdv, sizeof(env_complete_buf), | |
184 | env_complete_buf, true); | |
185 | } | |
186 | ||
04a85b3b WD |
187 | /*************************************************************************************/ |
188 | ||
09140113 SG |
189 | int complete_subcmdv(struct cmd_tbl *cmdtp, int count, int argc, |
190 | char *const argv[], char last_char, | |
6fb61445 | 191 | int maxv, char *cmdv[]) |
04a85b3b | 192 | { |
f8bb6964 | 193 | #ifdef CONFIG_CMDLINE |
09140113 | 194 | const struct cmd_tbl *cmdend = cmdtp + count; |
04a85b3b WD |
195 | const char *p; |
196 | int len, clen; | |
197 | int n_found = 0; | |
198 | const char *cmd; | |
199 | ||
200 | /* sanity? */ | |
201 | if (maxv < 2) | |
202 | return -2; | |
203 | ||
204 | cmdv[0] = NULL; | |
205 | ||
206 | if (argc == 0) { | |
207 | /* output full list of commands */ | |
6c7c946c | 208 | for (; cmdtp != cmdend; cmdtp++) { |
04a85b3b | 209 | if (n_found >= maxv - 2) { |
9b438946 | 210 | cmdv[n_found++] = "..."; |
04a85b3b WD |
211 | break; |
212 | } | |
9b438946 | 213 | cmdv[n_found++] = cmdtp->name; |
04a85b3b WD |
214 | } |
215 | cmdv[n_found] = NULL; | |
216 | return n_found; | |
217 | } | |
218 | ||
219 | /* more than one arg or one but the start of the next */ | |
616e2162 | 220 | if (argc > 1 || last_char == '\0' || isblank(last_char)) { |
6fb61445 | 221 | cmdtp = find_cmd_tbl(argv[0], cmdtp, count); |
04a85b3b WD |
222 | if (cmdtp == NULL || cmdtp->complete == NULL) { |
223 | cmdv[0] = NULL; | |
224 | return 0; | |
225 | } | |
226 | return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv); | |
227 | } | |
228 | ||
229 | cmd = argv[0]; | |
230 | /* | |
231 | * Some commands allow length modifiers (like "cp.b"); | |
232 | * compare command name only until first dot. | |
233 | */ | |
234 | p = strchr(cmd, '.'); | |
235 | if (p == NULL) | |
236 | len = strlen(cmd); | |
237 | else | |
238 | len = p - cmd; | |
239 | ||
240 | /* return the partial matches */ | |
6c7c946c | 241 | for (; cmdtp != cmdend; cmdtp++) { |
04a85b3b WD |
242 | |
243 | clen = strlen(cmdtp->name); | |
244 | if (clen < len) | |
245 | continue; | |
246 | ||
247 | if (memcmp(cmd, cmdtp->name, len) != 0) | |
248 | continue; | |
249 | ||
250 | /* too many! */ | |
251 | if (n_found >= maxv - 2) { | |
252 | cmdv[n_found++] = "..."; | |
253 | break; | |
254 | } | |
255 | ||
256 | cmdv[n_found++] = cmdtp->name; | |
257 | } | |
258 | ||
259 | cmdv[n_found] = NULL; | |
260 | return n_found; | |
f8bb6964 SG |
261 | #else |
262 | return 0; | |
263 | #endif | |
04a85b3b WD |
264 | } |
265 | ||
09140113 | 266 | static int complete_cmdv(int argc, char *const argv[], char last_char, |
6fb61445 BB |
267 | int maxv, char *cmdv[]) |
268 | { | |
269 | #ifdef CONFIG_CMDLINE | |
09140113 SG |
270 | return complete_subcmdv(ll_entry_start(struct cmd_tbl, cmd), |
271 | ll_entry_count(struct cmd_tbl, cmd), argc, argv, | |
6fb61445 BB |
272 | last_char, maxv, cmdv); |
273 | #else | |
274 | return 0; | |
275 | #endif | |
276 | } | |
277 | ||
04a85b3b WD |
278 | static int make_argv(char *s, int argvsz, char *argv[]) |
279 | { | |
280 | int argc = 0; | |
281 | ||
282 | /* split into argv */ | |
283 | while (argc < argvsz - 1) { | |
284 | ||
285 | /* skip any white space */ | |
4d91a6ec | 286 | while (isblank(*s)) |
04a85b3b WD |
287 | ++s; |
288 | ||
53677ef1 | 289 | if (*s == '\0') /* end of s, no more args */ |
04a85b3b WD |
290 | break; |
291 | ||
292 | argv[argc++] = s; /* begin of argument string */ | |
293 | ||
294 | /* find end of string */ | |
4d91a6ec | 295 | while (*s && !isblank(*s)) |
04a85b3b WD |
296 | ++s; |
297 | ||
298 | if (*s == '\0') /* end of s, no more args */ | |
299 | break; | |
300 | ||
301 | *s++ = '\0'; /* terminate current arg */ | |
302 | } | |
303 | argv[argc] = NULL; | |
304 | ||
305 | return argc; | |
306 | } | |
307 | ||
09140113 SG |
308 | static void print_argv(const char *banner, const char *leader, const char *sep, |
309 | int linemax, char *const argv[]) | |
04a85b3b WD |
310 | { |
311 | int ll = leader != NULL ? strlen(leader) : 0; | |
312 | int sl = sep != NULL ? strlen(sep) : 0; | |
313 | int len, i; | |
314 | ||
315 | if (banner) { | |
316 | puts("\n"); | |
317 | puts(banner); | |
318 | } | |
319 | ||
320 | i = linemax; /* force leader and newline */ | |
321 | while (*argv != NULL) { | |
322 | len = strlen(*argv) + sl; | |
323 | if (i + len >= linemax) { | |
324 | puts("\n"); | |
325 | if (leader) | |
326 | puts(leader); | |
327 | i = ll - sl; | |
328 | } else if (sep) | |
329 | puts(sep); | |
330 | puts(*argv++); | |
331 | i += len; | |
332 | } | |
333 | printf("\n"); | |
334 | } | |
335 | ||
09140113 | 336 | static int find_common_prefix(char *const argv[]) |
04a85b3b WD |
337 | { |
338 | int i, len; | |
339 | char *anchor, *s, *t; | |
340 | ||
341 | if (*argv == NULL) | |
342 | return 0; | |
343 | ||
344 | /* begin with max */ | |
345 | anchor = *argv++; | |
346 | len = strlen(anchor); | |
347 | while ((t = *argv++) != NULL) { | |
348 | s = anchor; | |
349 | for (i = 0; i < len; i++, t++, s++) { | |
350 | if (*t != *s) | |
351 | break; | |
352 | } | |
353 | len = s - anchor; | |
354 | } | |
355 | return len; | |
356 | } | |
357 | ||
2614a208 | 358 | static char tmp_buf[CONFIG_SYS_CBSIZE + 1]; /* copy of console I/O buffer */ |
04a85b3b WD |
359 | |
360 | int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp) | |
361 | { | |
362 | int n = *np, col = *colp; | |
6d0f6bcf | 363 | char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ |
04a85b3b WD |
364 | char *cmdv[20]; |
365 | char *s, *t; | |
366 | const char *sep; | |
367 | int i, j, k, len, seplen, argc; | |
368 | int cnt; | |
369 | char last_char; | |
4225f830 MV |
370 | #ifdef CONFIG_CMDLINE_PS_SUPPORT |
371 | const char *ps_prompt = env_get("PS1"); | |
372 | #else | |
373 | const char *ps_prompt = CONFIG_SYS_PROMPT; | |
374 | #endif | |
04a85b3b | 375 | |
4225f830 | 376 | if (strcmp(prompt, ps_prompt) != 0) |
04a85b3b WD |
377 | return 0; /* not in normal console */ |
378 | ||
379 | cnt = strlen(buf); | |
380 | if (cnt >= 1) | |
381 | last_char = buf[cnt - 1]; | |
382 | else | |
383 | last_char = '\0'; | |
384 | ||
385 | /* copy to secondary buffer which will be affected */ | |
386 | strcpy(tmp_buf, buf); | |
387 | ||
388 | /* separate into argv */ | |
389 | argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv); | |
390 | ||
03dcf17d BB |
391 | /* first try a $ completion */ |
392 | i = dollar_complete(argc, argv, last_char, | |
393 | sizeof(cmdv) / sizeof(cmdv[0]), cmdv); | |
394 | if (!i) { | |
395 | /* do the completion and return the possible completions */ | |
396 | i = complete_cmdv(argc, argv, last_char, | |
397 | sizeof(cmdv) / sizeof(cmdv[0]), cmdv); | |
398 | } | |
04a85b3b WD |
399 | |
400 | /* no match; bell and out */ | |
401 | if (i == 0) { | |
402 | if (argc > 1) /* allow tab for non command */ | |
403 | return 0; | |
404 | putc('\a'); | |
405 | return 1; | |
406 | } | |
407 | ||
408 | s = NULL; | |
409 | len = 0; | |
410 | sep = NULL; | |
411 | seplen = 0; | |
412 | if (i == 1) { /* one match; perfect */ | |
cbe07ebe BB |
413 | if (last_char != '\0' && !isblank(last_char)) |
414 | k = strlen(argv[argc - 1]); | |
415 | else | |
416 | k = 0; | |
417 | ||
04a85b3b WD |
418 | s = cmdv[0] + k; |
419 | len = strlen(s); | |
420 | sep = " "; | |
421 | seplen = 1; | |
616e2162 | 422 | } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */ |
cbe07ebe BB |
423 | if (last_char != '\0' && !isblank(last_char)) |
424 | k = strlen(argv[argc - 1]); | |
425 | else | |
426 | k = 0; | |
427 | ||
04a85b3b WD |
428 | j -= k; |
429 | if (j > 0) { | |
430 | s = cmdv[0] + k; | |
431 | len = j; | |
432 | } | |
433 | } | |
434 | ||
435 | if (s != NULL) { | |
436 | k = len + seplen; | |
437 | /* make sure it fits */ | |
6d0f6bcf | 438 | if (n + k >= CONFIG_SYS_CBSIZE - 2) { |
04a85b3b WD |
439 | putc('\a'); |
440 | return 1; | |
441 | } | |
442 | ||
443 | t = buf + cnt; | |
444 | for (i = 0; i < len; i++) | |
445 | *t++ = *s++; | |
446 | if (sep != NULL) | |
447 | for (i = 0; i < seplen; i++) | |
448 | *t++ = sep[i]; | |
449 | *t = '\0'; | |
450 | n += k; | |
451 | col += k; | |
452 | puts(t - k); | |
453 | if (sep == NULL) | |
454 | putc('\a'); | |
455 | *np = n; | |
456 | *colp = col; | |
457 | } else { | |
458 | print_argv(NULL, " ", " ", 78, cmdv); | |
459 | ||
460 | puts(prompt); | |
461 | puts(buf); | |
462 | } | |
463 | return 1; | |
464 | } | |
465 | ||
466 | #endif | |
8a40fb14 JCPV |
467 | |
468 | #ifdef CMD_DATA_SIZE | |
469 | int cmd_get_data_size(char* arg, int default_size) | |
470 | { | |
471 | /* Check for a size specification .b, .w or .l. | |
472 | */ | |
473 | int len = strlen(arg); | |
474 | if (len > 2 && arg[len-2] == '.') { | |
616e2162 | 475 | switch (arg[len-1]) { |
8a40fb14 JCPV |
476 | case 'b': |
477 | return 1; | |
478 | case 'w': | |
479 | return 2; | |
480 | case 'l': | |
481 | return 4; | |
482 | case 's': | |
7526deec | 483 | return CMD_DATA_SIZE_STR; |
a33a8242 SG |
484 | case 'q': |
485 | if (MEM_SUPPORT_64BIT_DATA) | |
486 | return 8; | |
487 | /* no break */ | |
8a40fb14 | 488 | default: |
7526deec | 489 | return CMD_DATA_SIZE_ERR; |
8a40fb14 JCPV |
490 | } |
491 | } | |
492 | return default_size; | |
493 | } | |
494 | #endif | |
620f1f6a | 495 | |
09140113 | 496 | void fixup_cmdtable(struct cmd_tbl *cmdtp, int size) |
620f1f6a HS |
497 | { |
498 | int i; | |
499 | ||
500 | if (gd->reloc_off == 0) | |
501 | return; | |
502 | ||
503 | for (i = 0; i < size; i++) { | |
504 | ulong addr; | |
505 | ||
6f94daf9 MS |
506 | addr = (ulong)(cmdtp->cmd_rep) + gd->reloc_off; |
507 | cmdtp->cmd_rep = | |
09140113 | 508 | (int (*)(struct cmd_tbl *, int, int, |
6f94daf9 MS |
509 | char * const [], int *))addr; |
510 | ||
616e2162 | 511 | addr = (ulong)(cmdtp->cmd) + gd->reloc_off; |
2e88bb28 | 512 | #ifdef DEBUG_COMMANDS |
620f1f6a | 513 | printf("Command \"%s\": 0x%08lx => 0x%08lx\n", |
616e2162 | 514 | cmdtp->name, (ulong)(cmdtp->cmd), addr); |
620f1f6a | 515 | #endif |
09140113 SG |
516 | cmdtp->cmd = (int (*)(struct cmd_tbl *, int, int, |
517 | char *const []))addr; | |
620f1f6a HS |
518 | addr = (ulong)(cmdtp->name) + gd->reloc_off; |
519 | cmdtp->name = (char *)addr; | |
520 | if (cmdtp->usage) { | |
521 | addr = (ulong)(cmdtp->usage) + gd->reloc_off; | |
522 | cmdtp->usage = (char *)addr; | |
523 | } | |
524 | #ifdef CONFIG_SYS_LONGHELP | |
525 | if (cmdtp->help) { | |
526 | addr = (ulong)(cmdtp->help) + gd->reloc_off; | |
527 | cmdtp->help = (char *)addr; | |
528 | } | |
fa28bd2e DS |
529 | #endif |
530 | #ifdef CONFIG_AUTO_COMPLETE | |
531 | if (cmdtp->complete) { | |
532 | addr = (ulong)(cmdtp->complete) + gd->reloc_off; | |
3668d8fa DS |
533 | cmdtp->complete = |
534 | (int (*)(int, char * const [], char, int, char * []))addr; | |
fa28bd2e | 535 | } |
620f1f6a HS |
536 | #endif |
537 | cmdtp++; | |
538 | } | |
539 | } | |
bdf8e34b | 540 | |
09140113 SG |
541 | int cmd_always_repeatable(struct cmd_tbl *cmdtp, int flag, int argc, |
542 | char *const argv[], int *repeatable) | |
80a48dd4 BB |
543 | { |
544 | *repeatable = 1; | |
545 | ||
546 | return cmdtp->cmd(cmdtp, flag, argc, argv); | |
547 | } | |
548 | ||
09140113 SG |
549 | int cmd_never_repeatable(struct cmd_tbl *cmdtp, int flag, int argc, |
550 | char *const argv[], int *repeatable) | |
80a48dd4 BB |
551 | { |
552 | *repeatable = 0; | |
553 | ||
554 | return cmdtp->cmd(cmdtp, flag, argc, argv); | |
555 | } | |
556 | ||
09140113 SG |
557 | int cmd_discard_repeatable(struct cmd_tbl *cmdtp, int flag, int argc, |
558 | char *const argv[]) | |
80a48dd4 BB |
559 | { |
560 | int repeatable; | |
561 | ||
562 | return cmdtp->cmd_rep(cmdtp, flag, argc, argv, &repeatable); | |
563 | } | |
564 | ||
bdf8e34b SG |
565 | /** |
566 | * Call a command function. This should be the only route in U-Boot to call | |
567 | * a command, so that we can track whether we are waiting for input or | |
568 | * executing a command. | |
569 | * | |
570 | * @param cmdtp Pointer to the command to execute | |
571 | * @param flag Some flags normally 0 (see CMD_FLAG_.. above) | |
572 | * @param argc Number of arguments (arg 0 must be the command text) | |
573 | * @param argv Arguments | |
80a48dd4 | 574 | * @param repeatable Can the command be repeated |
185f812c | 575 | * Return: 0 if command succeeded, else non-zero (CMD_RET_...) |
bdf8e34b | 576 | */ |
09140113 SG |
577 | static int cmd_call(struct cmd_tbl *cmdtp, int flag, int argc, |
578 | char *const argv[], int *repeatable) | |
bdf8e34b SG |
579 | { |
580 | int result; | |
581 | ||
80a48dd4 | 582 | result = cmdtp->cmd_rep(cmdtp, flag, argc, argv, repeatable); |
bdf8e34b | 583 | if (result) |
58b6ad68 | 584 | debug("Command failed, result=%d\n", result); |
bdf8e34b SG |
585 | return result; |
586 | } | |
9d12d5d4 | 587 | |
09140113 | 588 | enum command_ret_t cmd_process(int flag, int argc, char *const argv[], |
34765e88 | 589 | int *repeatable, ulong *ticks) |
9d12d5d4 SG |
590 | { |
591 | enum command_ret_t rc = CMD_RET_SUCCESS; | |
09140113 | 592 | struct cmd_tbl *cmdtp; |
9d12d5d4 | 593 | |
7ae31fcc CM |
594 | #if defined(CONFIG_SYS_XTRACE) |
595 | char *xtrace; | |
596 | ||
597 | xtrace = env_get("xtrace"); | |
598 | if (xtrace) { | |
599 | puts("+"); | |
600 | for (int i = 0; i < argc; i++) { | |
601 | puts(" "); | |
602 | puts(argv[i]); | |
603 | } | |
604 | puts("\n"); | |
605 | } | |
606 | #endif | |
607 | ||
9d12d5d4 SG |
608 | /* Look up command in command table */ |
609 | cmdtp = find_cmd(argv[0]); | |
610 | if (cmdtp == NULL) { | |
611 | printf("Unknown command '%s' - try 'help'\n", argv[0]); | |
612 | return 1; | |
613 | } | |
614 | ||
615 | /* found - check max args */ | |
616 | if (argc > cmdtp->maxargs) | |
617 | rc = CMD_RET_USAGE; | |
618 | ||
619 | #if defined(CONFIG_CMD_BOOTD) | |
620 | /* avoid "bootd" recursion */ | |
621 | else if (cmdtp->cmd == do_bootd) { | |
622 | if (flag & CMD_FLAG_BOOTD) { | |
623 | puts("'bootd' recursion detected\n"); | |
624 | rc = CMD_RET_FAILURE; | |
625 | } else { | |
626 | flag |= CMD_FLAG_BOOTD; | |
627 | } | |
628 | } | |
629 | #endif | |
630 | ||
631 | /* If OK so far, then do the command */ | |
632 | if (!rc) { | |
80a48dd4 BB |
633 | int newrep; |
634 | ||
34765e88 RG |
635 | if (ticks) |
636 | *ticks = get_timer(0); | |
80a48dd4 | 637 | rc = cmd_call(cmdtp, flag, argc, argv, &newrep); |
34765e88 RG |
638 | if (ticks) |
639 | *ticks = get_timer(*ticks); | |
80a48dd4 | 640 | *repeatable &= newrep; |
9d12d5d4 SG |
641 | } |
642 | if (rc == CMD_RET_USAGE) | |
643 | rc = cmd_usage(cmdtp); | |
644 | return rc; | |
645 | } | |
16ff9902 | 646 | |
09140113 | 647 | int cmd_process_error(struct cmd_tbl *cmdtp, int err) |
16ff9902 | 648 | { |
27eb7bce MS |
649 | if (err == CMD_RET_USAGE) |
650 | return CMD_RET_USAGE; | |
651 | ||
16ff9902 SG |
652 | if (err) { |
653 | printf("Command '%s' failed: Error %d\n", cmdtp->name, err); | |
37233240 | 654 | return CMD_RET_FAILURE; |
16ff9902 SG |
655 | } |
656 | ||
37233240 | 657 | return CMD_RET_SUCCESS; |
16ff9902 | 658 | } |
30f3333d SG |
659 | |
660 | int cmd_source_script(ulong addr, const char *fit_uname, const char *confname) | |
661 | { | |
662 | char *data; | |
663 | void *buf; | |
664 | uint len; | |
665 | int ret; | |
666 | ||
667 | buf = map_sysmem(addr, 0); | |
668 | ret = image_locate_script(buf, 0, fit_uname, confname, &data, &len); | |
669 | unmap_sysmem(buf); | |
670 | if (ret) | |
671 | return CMD_RET_FAILURE; | |
672 | ||
673 | debug("** Script length: %d\n", len); | |
674 | return run_command_list(data, len, 0); | |
675 | } |