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Commit | Line | Data |
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c609719b WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
501090aa WD |
5 | * Add to readline cmdline-editing by |
6 | * (C) Copyright 2005 | |
7 | * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com> | |
8 | * | |
c609719b WD |
9 | * See file CREDITS for list of people who contributed to this |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
a6c7ad2f WD |
28 | /* #define DEBUG */ |
29 | ||
c609719b WD |
30 | #include <common.h> |
31 | #include <watchdog.h> | |
32 | #include <command.h> | |
d9631ecf WD |
33 | #ifdef CONFIG_MODEM_SUPPORT |
34 | #include <malloc.h> /* for free() prototype */ | |
35 | #endif | |
c609719b | 36 | |
6d0f6bcf | 37 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
38 | #include <hush.h> |
39 | #endif | |
40 | ||
bdccc4fe WD |
41 | #include <post.h> |
42 | ||
597f6c26 | 43 | #if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST) || defined(CONFIG_CMDLINE_EDITING) |
d87080b7 WD |
44 | DECLARE_GLOBAL_DATA_PTR; |
45 | #endif | |
46 | ||
fad63407 HS |
47 | /* |
48 | * Board-specific Platform code can reimplement show_boot_progress () if needed | |
49 | */ | |
50 | void inline __show_boot_progress (int val) {} | |
5e2c08c3 | 51 | void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); |
fad63407 | 52 | |
8bde7f77 WD |
53 | #if defined(CONFIG_BOOT_RETRY_TIME) && defined(CONFIG_RESET_TO_RETRY) |
54 | extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); /* for do_reset() prototype */ | |
55 | #endif | |
56 | ||
57 | extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); | |
58 | ||
4bae9090 BS |
59 | #if defined(CONFIG_UPDATE_TFTP) |
60 | void update_tftp (void); | |
61 | #endif /* CONFIG_UPDATE_TFTP */ | |
8bde7f77 | 62 | |
c609719b WD |
63 | #define MAX_DELAY_STOP_STR 32 |
64 | ||
c609719b WD |
65 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
66 | static int abortboot(int); | |
67 | #endif | |
68 | ||
69 | #undef DEBUG_PARSER | |
70 | ||
6d0f6bcf | 71 | char console_buffer[CONFIG_SYS_CBSIZE]; /* console I/O buffer */ |
c609719b | 72 | |
3ca9122f | 73 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); |
c609719b WD |
74 | static char erase_seq[] = "\b \b"; /* erase sequence */ |
75 | static char tab_seq[] = " "; /* used to expand TABs */ | |
76 | ||
77 | #ifdef CONFIG_BOOT_RETRY_TIME | |
78 | static uint64_t endtime = 0; /* must be set, default is instant timeout */ | |
79 | static int retry_time = -1; /* -1 so can call readline before main_loop */ | |
80 | #endif | |
81 | ||
82 | #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk()) | |
83 | ||
84 | #ifndef CONFIG_BOOT_RETRY_MIN | |
85 | #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME | |
86 | #endif | |
87 | ||
88 | #ifdef CONFIG_MODEM_SUPPORT | |
89 | int do_mdm_init = 0; | |
90 | extern void mdm_init(void); /* defined in board.c */ | |
91 | #endif | |
92 | ||
93 | /*************************************************************************** | |
94 | * Watch for 'delay' seconds for autoboot stop or autoboot delay string. | |
95 | * returns: 0 - no key string, allow autoboot | |
96 | * 1 - got key string, abort | |
97 | */ | |
98 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
99 | # if defined(CONFIG_AUTOBOOT_KEYED) | |
100 | static __inline__ int abortboot(int bootdelay) | |
101 | { | |
102 | int abort = 0; | |
103 | uint64_t etime = endtick(bootdelay); | |
19973b6a | 104 | struct { |
c609719b WD |
105 | char* str; |
106 | u_int len; | |
107 | int retry; | |
108 | } | |
19973b6a | 109 | delaykey [] = { |
c609719b WD |
110 | { str: getenv ("bootdelaykey"), retry: 1 }, |
111 | { str: getenv ("bootdelaykey2"), retry: 1 }, | |
112 | { str: getenv ("bootstopkey"), retry: 0 }, | |
113 | { str: getenv ("bootstopkey2"), retry: 0 }, | |
114 | }; | |
115 | ||
116 | char presskey [MAX_DELAY_STOP_STR]; | |
117 | u_int presskey_len = 0; | |
118 | u_int presskey_max = 0; | |
119 | u_int i; | |
120 | ||
121 | # ifdef CONFIG_AUTOBOOT_PROMPT | |
f2302d44 | 122 | printf(CONFIG_AUTOBOOT_PROMPT); |
c609719b WD |
123 | # endif |
124 | ||
125 | # ifdef CONFIG_AUTOBOOT_DELAY_STR | |
126 | if (delaykey[0].str == NULL) | |
127 | delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; | |
128 | # endif | |
129 | # ifdef CONFIG_AUTOBOOT_DELAY_STR2 | |
130 | if (delaykey[1].str == NULL) | |
131 | delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; | |
132 | # endif | |
133 | # ifdef CONFIG_AUTOBOOT_STOP_STR | |
134 | if (delaykey[2].str == NULL) | |
135 | delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; | |
136 | # endif | |
137 | # ifdef CONFIG_AUTOBOOT_STOP_STR2 | |
138 | if (delaykey[3].str == NULL) | |
139 | delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; | |
140 | # endif | |
141 | ||
142 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { | |
143 | delaykey[i].len = delaykey[i].str == NULL ? | |
144 | 0 : strlen (delaykey[i].str); | |
145 | delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? | |
146 | MAX_DELAY_STOP_STR : delaykey[i].len; | |
147 | ||
148 | presskey_max = presskey_max > delaykey[i].len ? | |
149 | presskey_max : delaykey[i].len; | |
150 | ||
151 | # if DEBUG_BOOTKEYS | |
152 | printf("%s key:<%s>\n", | |
153 | delaykey[i].retry ? "delay" : "stop", | |
154 | delaykey[i].str ? delaykey[i].str : "NULL"); | |
155 | # endif | |
156 | } | |
157 | ||
158 | /* In order to keep up with incoming data, check timeout only | |
159 | * when catch up. | |
160 | */ | |
c3284b03 PK |
161 | do { |
162 | if (tstc()) { | |
163 | if (presskey_len < presskey_max) { | |
164 | presskey [presskey_len ++] = getc(); | |
165 | } | |
166 | else { | |
167 | for (i = 0; i < presskey_max - 1; i ++) | |
168 | presskey [i] = presskey [i + 1]; | |
169 | ||
170 | presskey [i] = getc(); | |
171 | } | |
172 | } | |
173 | ||
c609719b WD |
174 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { |
175 | if (delaykey[i].len > 0 && | |
176 | presskey_len >= delaykey[i].len && | |
177 | memcmp (presskey + presskey_len - delaykey[i].len, | |
8bde7f77 | 178 | delaykey[i].str, |
c609719b WD |
179 | delaykey[i].len) == 0) { |
180 | # if DEBUG_BOOTKEYS | |
181 | printf("got %skey\n", | |
182 | delaykey[i].retry ? "delay" : "stop"); | |
183 | # endif | |
184 | ||
185 | # ifdef CONFIG_BOOT_RETRY_TIME | |
186 | /* don't retry auto boot */ | |
187 | if (! delaykey[i].retry) | |
188 | retry_time = -1; | |
189 | # endif | |
190 | abort = 1; | |
191 | } | |
192 | } | |
c3284b03 | 193 | } while (!abort && get_ticks() <= etime); |
c609719b | 194 | |
c609719b WD |
195 | # if DEBUG_BOOTKEYS |
196 | if (!abort) | |
ada4d400 | 197 | puts("key timeout\n"); |
c609719b WD |
198 | # endif |
199 | ||
8cb8143e | 200 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
201 | if (abort) |
202 | gd->flags &= ~GD_FLG_SILENT; | |
8cb8143e | 203 | #endif |
204 | ||
c609719b WD |
205 | return abort; |
206 | } | |
207 | ||
208 | # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ | |
209 | ||
c7de829c WD |
210 | #ifdef CONFIG_MENUKEY |
211 | static int menukey = 0; | |
212 | #endif | |
213 | ||
c609719b WD |
214 | static __inline__ int abortboot(int bootdelay) |
215 | { | |
216 | int abort = 0; | |
217 | ||
c7de829c | 218 | #ifdef CONFIG_MENUPROMPT |
f2302d44 | 219 | printf(CONFIG_MENUPROMPT); |
c7de829c | 220 | #else |
c609719b | 221 | printf("Hit any key to stop autoboot: %2d ", bootdelay); |
c7de829c | 222 | #endif |
c609719b WD |
223 | |
224 | #if defined CONFIG_ZERO_BOOTDELAY_CHECK | |
8bde7f77 WD |
225 | /* |
226 | * Check if key already pressed | |
227 | * Don't check if bootdelay < 0 | |
228 | */ | |
c609719b WD |
229 | if (bootdelay >= 0) { |
230 | if (tstc()) { /* we got a key press */ | |
231 | (void) getc(); /* consume input */ | |
4b9206ed | 232 | puts ("\b\b\b 0"); |
4ec5bd55 | 233 | abort = 1; /* don't auto boot */ |
c609719b | 234 | } |
8bde7f77 | 235 | } |
c609719b WD |
236 | #endif |
237 | ||
f72da340 | 238 | while ((bootdelay > 0) && (!abort)) { |
c609719b WD |
239 | int i; |
240 | ||
241 | --bootdelay; | |
242 | /* delay 100 * 10ms */ | |
243 | for (i=0; !abort && i<100; ++i) { | |
244 | if (tstc()) { /* we got a key press */ | |
245 | abort = 1; /* don't auto boot */ | |
246 | bootdelay = 0; /* no more delay */ | |
c7de829c WD |
247 | # ifdef CONFIG_MENUKEY |
248 | menukey = getc(); | |
249 | # else | |
c609719b | 250 | (void) getc(); /* consume input */ |
c7de829c | 251 | # endif |
c609719b WD |
252 | break; |
253 | } | |
ada4d400 | 254 | udelay(10000); |
c609719b WD |
255 | } |
256 | ||
ada4d400 | 257 | printf("\b\b\b%2d ", bootdelay); |
c609719b WD |
258 | } |
259 | ||
ada4d400 | 260 | putc('\n'); |
c609719b | 261 | |
f72da340 | 262 | #ifdef CONFIG_SILENT_CONSOLE |
4ec5bd55 LM |
263 | if (abort) |
264 | gd->flags &= ~GD_FLG_SILENT; | |
f72da340 WD |
265 | #endif |
266 | ||
c609719b WD |
267 | return abort; |
268 | } | |
269 | # endif /* CONFIG_AUTOBOOT_KEYED */ | |
270 | #endif /* CONFIG_BOOTDELAY >= 0 */ | |
271 | ||
272 | /****************************************************************************/ | |
273 | ||
274 | void main_loop (void) | |
275 | { | |
6d0f6bcf JCPV |
276 | #ifndef CONFIG_SYS_HUSH_PARSER |
277 | static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, }; | |
c609719b WD |
278 | int len; |
279 | int rc = 1; | |
280 | int flag; | |
281 | #endif | |
282 | ||
283 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) | |
284 | char *s; | |
285 | int bootdelay; | |
286 | #endif | |
287 | #ifdef CONFIG_PREBOOT | |
288 | char *p; | |
289 | #endif | |
bdccc4fe WD |
290 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
291 | unsigned long bootcount = 0; | |
292 | unsigned long bootlimit = 0; | |
293 | char *bcs; | |
294 | char bcs_set[16]; | |
295 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
c609719b WD |
296 | |
297 | #if defined(CONFIG_VFD) && defined(VFD_TEST_LOGO) | |
298 | ulong bmp = 0; /* default bitmap */ | |
299 | extern int trab_vfd (ulong bitmap); | |
300 | ||
301 | #ifdef CONFIG_MODEM_SUPPORT | |
302 | if (do_mdm_init) | |
303 | bmp = 1; /* alternate bitmap */ | |
304 | #endif | |
305 | trab_vfd (bmp); | |
306 | #endif /* CONFIG_VFD && VFD_TEST_LOGO */ | |
307 | ||
bdccc4fe WD |
308 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
309 | bootcount = bootcount_load(); | |
310 | bootcount++; | |
311 | bootcount_store (bootcount); | |
312 | sprintf (bcs_set, "%lu", bootcount); | |
313 | setenv ("bootcount", bcs_set); | |
314 | bcs = getenv ("bootlimit"); | |
315 | bootlimit = bcs ? simple_strtoul (bcs, NULL, 10) : 0; | |
316 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
317 | ||
c609719b WD |
318 | #ifdef CONFIG_MODEM_SUPPORT |
319 | debug ("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); | |
320 | if (do_mdm_init) { | |
77ddac94 | 321 | char *str = strdup(getenv("mdm_cmd")); |
c609719b WD |
322 | setenv ("preboot", str); /* set or delete definition */ |
323 | if (str != NULL) | |
324 | free (str); | |
325 | mdm_init(); /* wait for modem connection */ | |
326 | } | |
327 | #endif /* CONFIG_MODEM_SUPPORT */ | |
328 | ||
0587597c SR |
329 | #ifdef CONFIG_VERSION_VARIABLE |
330 | { | |
331 | extern char version_string[]; | |
0587597c | 332 | |
155cb010 | 333 | setenv ("ver", version_string); /* set version variable */ |
0587597c SR |
334 | } |
335 | #endif /* CONFIG_VERSION_VARIABLE */ | |
336 | ||
6d0f6bcf | 337 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
338 | u_boot_hush_start (); |
339 | #endif | |
340 | ||
81473f67 HS |
341 | #if defined(CONFIG_HUSH_INIT_VAR) |
342 | hush_init_var (); | |
343 | #endif | |
344 | ||
04a85b3b WD |
345 | #ifdef CONFIG_AUTO_COMPLETE |
346 | install_auto_complete(); | |
347 | #endif | |
348 | ||
c609719b WD |
349 | #ifdef CONFIG_PREBOOT |
350 | if ((p = getenv ("preboot")) != NULL) { | |
351 | # ifdef CONFIG_AUTOBOOT_KEYED | |
352 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
353 | # endif | |
354 | ||
6d0f6bcf | 355 | # ifndef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
356 | run_command (p, 0); |
357 | # else | |
358 | parse_string_outer(p, FLAG_PARSE_SEMICOLON | | |
359 | FLAG_EXIT_FROM_LOOP); | |
360 | # endif | |
361 | ||
362 | # ifdef CONFIG_AUTOBOOT_KEYED | |
363 | disable_ctrlc(prev); /* restore Control C checking */ | |
364 | # endif | |
365 | } | |
366 | #endif /* CONFIG_PREBOOT */ | |
367 | ||
143cd21f WD |
368 | #if defined(CONFIG_UPDATE_TFTP) |
369 | update_tftp (); | |
370 | #endif /* CONFIG_UPDATE_TFTP */ | |
371 | ||
c609719b WD |
372 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
373 | s = getenv ("bootdelay"); | |
374 | bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; | |
375 | ||
a6c7ad2f | 376 | debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay); |
c609719b WD |
377 | |
378 | # ifdef CONFIG_BOOT_RETRY_TIME | |
6dd652fa | 379 | init_cmd_timeout (); |
c609719b WD |
380 | # endif /* CONFIG_BOOT_RETRY_TIME */ |
381 | ||
b428f6a8 YT |
382 | #ifdef CONFIG_POST |
383 | if (gd->flags & GD_FLG_POSTFAIL) { | |
384 | s = getenv("failbootcmd"); | |
385 | } | |
386 | else | |
387 | #endif /* CONFIG_POST */ | |
bdccc4fe WD |
388 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
389 | if (bootlimit && (bootcount > bootlimit)) { | |
390 | printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", | |
391 | (unsigned)bootlimit); | |
392 | s = getenv ("altbootcmd"); | |
393 | } | |
394 | else | |
395 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ | |
396 | s = getenv ("bootcmd"); | |
a6c7ad2f WD |
397 | |
398 | debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); | |
399 | ||
c609719b WD |
400 | if (bootdelay >= 0 && s && !abortboot (bootdelay)) { |
401 | # ifdef CONFIG_AUTOBOOT_KEYED | |
402 | int prev = disable_ctrlc(1); /* disable Control C checking */ | |
403 | # endif | |
404 | ||
6d0f6bcf | 405 | # ifndef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
406 | run_command (s, 0); |
407 | # else | |
408 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
409 | FLAG_EXIT_FROM_LOOP); | |
410 | # endif | |
411 | ||
412 | # ifdef CONFIG_AUTOBOOT_KEYED | |
413 | disable_ctrlc(prev); /* restore Control C checking */ | |
414 | # endif | |
415 | } | |
c7de829c WD |
416 | |
417 | # ifdef CONFIG_MENUKEY | |
a6c7ad2f | 418 | if (menukey == CONFIG_MENUKEY) { |
c7de829c | 419 | s = getenv("menucmd"); |
a6c7ad2f | 420 | if (s) { |
6d0f6bcf | 421 | # ifndef CONFIG_SYS_HUSH_PARSER |
6225c5db | 422 | run_command (s, 0); |
c7de829c WD |
423 | # else |
424 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | | |
425 | FLAG_EXIT_FROM_LOOP); | |
426 | # endif | |
427 | } | |
428 | } | |
429 | #endif /* CONFIG_MENUKEY */ | |
c609719b WD |
430 | #endif /* CONFIG_BOOTDELAY */ |
431 | ||
c7de829c WD |
432 | #ifdef CONFIG_AMIGAONEG3SE |
433 | { | |
434 | extern void video_banner(void); | |
435 | video_banner(); | |
436 | } | |
437 | #endif | |
438 | ||
c609719b WD |
439 | /* |
440 | * Main Loop for Monitor Command Processing | |
441 | */ | |
6d0f6bcf | 442 | #ifdef CONFIG_SYS_HUSH_PARSER |
c609719b WD |
443 | parse_file_outer(); |
444 | /* This point is never reached */ | |
445 | for (;;); | |
446 | #else | |
447 | for (;;) { | |
448 | #ifdef CONFIG_BOOT_RETRY_TIME | |
449 | if (rc >= 0) { | |
450 | /* Saw enough of a valid command to | |
451 | * restart the timeout. | |
452 | */ | |
453 | reset_cmd_timeout(); | |
454 | } | |
455 | #endif | |
6d0f6bcf | 456 | len = readline (CONFIG_SYS_PROMPT); |
c609719b WD |
457 | |
458 | flag = 0; /* assume no special flags for now */ | |
459 | if (len > 0) | |
460 | strcpy (lastcommand, console_buffer); | |
461 | else if (len == 0) | |
462 | flag |= CMD_FLAG_REPEAT; | |
463 | #ifdef CONFIG_BOOT_RETRY_TIME | |
464 | else if (len == -2) { | |
465 | /* -2 means timed out, retry autoboot | |
466 | */ | |
4b9206ed | 467 | puts ("\nTimed out waiting for command\n"); |
c609719b WD |
468 | # ifdef CONFIG_RESET_TO_RETRY |
469 | /* Reinit board to run initialization code again */ | |
470 | do_reset (NULL, 0, 0, NULL); | |
471 | # else | |
472 | return; /* retry autoboot */ | |
473 | # endif | |
474 | } | |
475 | #endif | |
476 | ||
477 | if (len == -1) | |
4b9206ed | 478 | puts ("<INTERRUPT>\n"); |
c609719b WD |
479 | else |
480 | rc = run_command (lastcommand, flag); | |
481 | ||
482 | if (rc <= 0) { | |
483 | /* invalid command or not repeatable, forget it */ | |
484 | lastcommand[0] = 0; | |
485 | } | |
486 | } | |
6d0f6bcf | 487 | #endif /*CONFIG_SYS_HUSH_PARSER*/ |
c609719b WD |
488 | } |
489 | ||
6dd652fa WD |
490 | #ifdef CONFIG_BOOT_RETRY_TIME |
491 | /*************************************************************************** | |
19973b6a | 492 | * initialize command line timeout |
6dd652fa WD |
493 | */ |
494 | void init_cmd_timeout(void) | |
495 | { | |
496 | char *s = getenv ("bootretry"); | |
497 | ||
498 | if (s != NULL) | |
b028f715 | 499 | retry_time = (int)simple_strtol(s, NULL, 10); |
6dd652fa WD |
500 | else |
501 | retry_time = CONFIG_BOOT_RETRY_TIME; | |
502 | ||
503 | if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) | |
504 | retry_time = CONFIG_BOOT_RETRY_MIN; | |
505 | } | |
506 | ||
c609719b WD |
507 | /*************************************************************************** |
508 | * reset command line timeout to retry_time seconds | |
509 | */ | |
c609719b WD |
510 | void reset_cmd_timeout(void) |
511 | { | |
512 | endtime = endtick(retry_time); | |
513 | } | |
514 | #endif | |
515 | ||
501090aa WD |
516 | #ifdef CONFIG_CMDLINE_EDITING |
517 | ||
518 | /* | |
519 | * cmdline-editing related codes from vivi. | |
520 | * Author: Janghoon Lyu <nandy@mizi.com> | |
521 | */ | |
522 | ||
501090aa | 523 | #define putnstr(str,n) do { \ |
dc4b0b38 | 524 | printf ("%.*s", (int)n, str); \ |
501090aa | 525 | } while (0) |
501090aa WD |
526 | |
527 | #define CTL_CH(c) ((c) - 'a' + 1) | |
528 | ||
529 | #define MAX_CMDBUF_SIZE 256 | |
530 | ||
531 | #define CTL_BACKSPACE ('\b') | |
532 | #define DEL ((char)255) | |
533 | #define DEL7 ((char)127) | |
534 | #define CREAD_HIST_CHAR ('!') | |
535 | ||
536 | #define getcmd_putch(ch) putc(ch) | |
537 | #define getcmd_getch() getc() | |
538 | #define getcmd_cbeep() getcmd_putch('\a') | |
539 | ||
540 | #define HIST_MAX 20 | |
541 | #define HIST_SIZE MAX_CMDBUF_SIZE | |
542 | ||
543 | static int hist_max = 0; | |
544 | static int hist_add_idx = 0; | |
545 | static int hist_cur = -1; | |
546 | unsigned hist_num = 0; | |
547 | ||
548 | char* hist_list[HIST_MAX]; | |
549 | char hist_lines[HIST_MAX][HIST_SIZE]; | |
550 | ||
551 | #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) | |
552 | ||
553 | static void hist_init(void) | |
554 | { | |
555 | int i; | |
556 | ||
557 | hist_max = 0; | |
558 | hist_add_idx = 0; | |
559 | hist_cur = -1; | |
560 | hist_num = 0; | |
561 | ||
562 | for (i = 0; i < HIST_MAX; i++) { | |
563 | hist_list[i] = hist_lines[i]; | |
564 | hist_list[i][0] = '\0'; | |
565 | } | |
566 | } | |
567 | ||
568 | static void cread_add_to_hist(char *line) | |
569 | { | |
570 | strcpy(hist_list[hist_add_idx], line); | |
571 | ||
572 | if (++hist_add_idx >= HIST_MAX) | |
573 | hist_add_idx = 0; | |
574 | ||
575 | if (hist_add_idx > hist_max) | |
576 | hist_max = hist_add_idx; | |
577 | ||
578 | hist_num++; | |
579 | } | |
580 | ||
581 | static char* hist_prev(void) | |
582 | { | |
583 | char *ret; | |
584 | int old_cur; | |
585 | ||
586 | if (hist_cur < 0) | |
587 | return NULL; | |
588 | ||
589 | old_cur = hist_cur; | |
590 | if (--hist_cur < 0) | |
591 | hist_cur = hist_max; | |
592 | ||
593 | if (hist_cur == hist_add_idx) { | |
594 | hist_cur = old_cur; | |
595 | ret = NULL; | |
596 | } else | |
597 | ret = hist_list[hist_cur]; | |
598 | ||
599 | return (ret); | |
600 | } | |
601 | ||
602 | static char* hist_next(void) | |
603 | { | |
604 | char *ret; | |
605 | ||
606 | if (hist_cur < 0) | |
607 | return NULL; | |
608 | ||
609 | if (hist_cur == hist_add_idx) | |
610 | return NULL; | |
611 | ||
612 | if (++hist_cur > hist_max) | |
613 | hist_cur = 0; | |
614 | ||
615 | if (hist_cur == hist_add_idx) { | |
616 | ret = ""; | |
617 | } else | |
618 | ret = hist_list[hist_cur]; | |
619 | ||
620 | return (ret); | |
621 | } | |
622 | ||
3ca9122f | 623 | #ifndef CONFIG_CMDLINE_EDITING |
501090aa WD |
624 | static void cread_print_hist_list(void) |
625 | { | |
626 | int i; | |
627 | unsigned long n; | |
628 | ||
629 | n = hist_num - hist_max; | |
630 | ||
631 | i = hist_add_idx + 1; | |
632 | while (1) { | |
633 | if (i > hist_max) | |
634 | i = 0; | |
635 | if (i == hist_add_idx) | |
636 | break; | |
637 | printf("%s\n", hist_list[i]); | |
638 | n++; | |
639 | i++; | |
640 | } | |
641 | } | |
3ca9122f | 642 | #endif /* CONFIG_CMDLINE_EDITING */ |
501090aa WD |
643 | |
644 | #define BEGINNING_OF_LINE() { \ | |
645 | while (num) { \ | |
646 | getcmd_putch(CTL_BACKSPACE); \ | |
647 | num--; \ | |
648 | } \ | |
649 | } | |
650 | ||
651 | #define ERASE_TO_EOL() { \ | |
652 | if (num < eol_num) { \ | |
653 | int tmp; \ | |
654 | for (tmp = num; tmp < eol_num; tmp++) \ | |
655 | getcmd_putch(' '); \ | |
656 | while (tmp-- > num) \ | |
657 | getcmd_putch(CTL_BACKSPACE); \ | |
658 | eol_num = num; \ | |
659 | } \ | |
660 | } | |
661 | ||
662 | #define REFRESH_TO_EOL() { \ | |
663 | if (num < eol_num) { \ | |
664 | wlen = eol_num - num; \ | |
665 | putnstr(buf + num, wlen); \ | |
666 | num = eol_num; \ | |
667 | } \ | |
668 | } | |
669 | ||
670 | static void cread_add_char(char ichar, int insert, unsigned long *num, | |
671 | unsigned long *eol_num, char *buf, unsigned long len) | |
672 | { | |
673 | unsigned long wlen; | |
674 | ||
675 | /* room ??? */ | |
676 | if (insert || *num == *eol_num) { | |
677 | if (*eol_num > len - 1) { | |
678 | getcmd_cbeep(); | |
679 | return; | |
680 | } | |
681 | (*eol_num)++; | |
682 | } | |
683 | ||
684 | if (insert) { | |
685 | wlen = *eol_num - *num; | |
686 | if (wlen > 1) { | |
687 | memmove(&buf[*num+1], &buf[*num], wlen-1); | |
688 | } | |
689 | ||
690 | buf[*num] = ichar; | |
691 | putnstr(buf + *num, wlen); | |
692 | (*num)++; | |
693 | while (--wlen) { | |
694 | getcmd_putch(CTL_BACKSPACE); | |
695 | } | |
696 | } else { | |
697 | /* echo the character */ | |
698 | wlen = 1; | |
699 | buf[*num] = ichar; | |
700 | putnstr(buf + *num, wlen); | |
701 | (*num)++; | |
702 | } | |
703 | } | |
704 | ||
705 | static void cread_add_str(char *str, int strsize, int insert, unsigned long *num, | |
706 | unsigned long *eol_num, char *buf, unsigned long len) | |
707 | { | |
708 | while (strsize--) { | |
709 | cread_add_char(*str, insert, num, eol_num, buf, len); | |
710 | str++; | |
711 | } | |
712 | } | |
713 | ||
23d0baf9 | 714 | static int cread_line(const char *const prompt, char *buf, unsigned int *len) |
501090aa WD |
715 | { |
716 | unsigned long num = 0; | |
717 | unsigned long eol_num = 0; | |
501090aa WD |
718 | unsigned long wlen; |
719 | char ichar; | |
720 | int insert = 1; | |
721 | int esc_len = 0; | |
501090aa | 722 | char esc_save[8]; |
ecc5500e PT |
723 | int init_len = strlen(buf); |
724 | ||
725 | if (init_len) | |
726 | cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); | |
501090aa WD |
727 | |
728 | while (1) { | |
00ac50e3 AE |
729 | #ifdef CONFIG_BOOT_RETRY_TIME |
730 | while (!tstc()) { /* while no incoming data */ | |
731 | if (retry_time >= 0 && get_ticks() > endtime) | |
732 | return (-2); /* timed out */ | |
733 | } | |
734 | #endif | |
735 | ||
501090aa WD |
736 | ichar = getcmd_getch(); |
737 | ||
738 | if ((ichar == '\n') || (ichar == '\r')) { | |
dd9f06f0 | 739 | putc('\n'); |
501090aa WD |
740 | break; |
741 | } | |
742 | ||
743 | /* | |
744 | * handle standard linux xterm esc sequences for arrow key, etc. | |
745 | */ | |
746 | if (esc_len != 0) { | |
747 | if (esc_len == 1) { | |
748 | if (ichar == '[') { | |
749 | esc_save[esc_len] = ichar; | |
750 | esc_len = 2; | |
751 | } else { | |
752 | cread_add_str(esc_save, esc_len, insert, | |
753 | &num, &eol_num, buf, *len); | |
754 | esc_len = 0; | |
755 | } | |
756 | continue; | |
757 | } | |
758 | ||
759 | switch (ichar) { | |
760 | ||
761 | case 'D': /* <- key */ | |
762 | ichar = CTL_CH('b'); | |
763 | esc_len = 0; | |
764 | break; | |
765 | case 'C': /* -> key */ | |
766 | ichar = CTL_CH('f'); | |
767 | esc_len = 0; | |
768 | break; /* pass off to ^F handler */ | |
769 | case 'H': /* Home key */ | |
770 | ichar = CTL_CH('a'); | |
771 | esc_len = 0; | |
772 | break; /* pass off to ^A handler */ | |
773 | case 'A': /* up arrow */ | |
774 | ichar = CTL_CH('p'); | |
775 | esc_len = 0; | |
776 | break; /* pass off to ^P handler */ | |
777 | case 'B': /* down arrow */ | |
778 | ichar = CTL_CH('n'); | |
779 | esc_len = 0; | |
780 | break; /* pass off to ^N handler */ | |
781 | default: | |
782 | esc_save[esc_len++] = ichar; | |
783 | cread_add_str(esc_save, esc_len, insert, | |
784 | &num, &eol_num, buf, *len); | |
785 | esc_len = 0; | |
786 | continue; | |
787 | } | |
788 | } | |
789 | ||
790 | switch (ichar) { | |
791 | case 0x1b: | |
792 | if (esc_len == 0) { | |
793 | esc_save[esc_len] = ichar; | |
794 | esc_len = 1; | |
795 | } else { | |
dd9f06f0 | 796 | puts("impossible condition #876\n"); |
501090aa WD |
797 | esc_len = 0; |
798 | } | |
799 | break; | |
800 | ||
801 | case CTL_CH('a'): | |
802 | BEGINNING_OF_LINE(); | |
803 | break; | |
804 | case CTL_CH('c'): /* ^C - break */ | |
805 | *buf = '\0'; /* discard input */ | |
806 | return (-1); | |
807 | case CTL_CH('f'): | |
808 | if (num < eol_num) { | |
809 | getcmd_putch(buf[num]); | |
810 | num++; | |
811 | } | |
812 | break; | |
813 | case CTL_CH('b'): | |
814 | if (num) { | |
815 | getcmd_putch(CTL_BACKSPACE); | |
816 | num--; | |
817 | } | |
818 | break; | |
819 | case CTL_CH('d'): | |
820 | if (num < eol_num) { | |
821 | wlen = eol_num - num - 1; | |
822 | if (wlen) { | |
823 | memmove(&buf[num], &buf[num+1], wlen); | |
824 | putnstr(buf + num, wlen); | |
825 | } | |
826 | ||
827 | getcmd_putch(' '); | |
828 | do { | |
829 | getcmd_putch(CTL_BACKSPACE); | |
830 | } while (wlen--); | |
831 | eol_num--; | |
832 | } | |
833 | break; | |
834 | case CTL_CH('k'): | |
835 | ERASE_TO_EOL(); | |
836 | break; | |
837 | case CTL_CH('e'): | |
838 | REFRESH_TO_EOL(); | |
839 | break; | |
840 | case CTL_CH('o'): | |
841 | insert = !insert; | |
842 | break; | |
843 | case CTL_CH('x'): | |
23d0baf9 | 844 | case CTL_CH('u'): |
501090aa WD |
845 | BEGINNING_OF_LINE(); |
846 | ERASE_TO_EOL(); | |
847 | break; | |
848 | case DEL: | |
849 | case DEL7: | |
850 | case 8: | |
851 | if (num) { | |
852 | wlen = eol_num - num; | |
853 | num--; | |
854 | memmove(&buf[num], &buf[num+1], wlen); | |
855 | getcmd_putch(CTL_BACKSPACE); | |
856 | putnstr(buf + num, wlen); | |
857 | getcmd_putch(' '); | |
858 | do { | |
859 | getcmd_putch(CTL_BACKSPACE); | |
860 | } while (wlen--); | |
861 | eol_num--; | |
862 | } | |
863 | break; | |
864 | case CTL_CH('p'): | |
865 | case CTL_CH('n'): | |
866 | { | |
867 | char * hline; | |
868 | ||
869 | esc_len = 0; | |
870 | ||
871 | if (ichar == CTL_CH('p')) | |
872 | hline = hist_prev(); | |
873 | else | |
874 | hline = hist_next(); | |
875 | ||
876 | if (!hline) { | |
877 | getcmd_cbeep(); | |
878 | continue; | |
879 | } | |
880 | ||
881 | /* nuke the current line */ | |
882 | /* first, go home */ | |
883 | BEGINNING_OF_LINE(); | |
884 | ||
885 | /* erase to end of line */ | |
886 | ERASE_TO_EOL(); | |
887 | ||
888 | /* copy new line into place and display */ | |
889 | strcpy(buf, hline); | |
890 | eol_num = strlen(buf); | |
891 | REFRESH_TO_EOL(); | |
892 | continue; | |
893 | } | |
23d0baf9 JCPV |
894 | #ifdef CONFIG_AUTO_COMPLETE |
895 | case '\t': { | |
896 | int num2, col; | |
897 | ||
898 | /* do not autocomplete when in the middle */ | |
899 | if (num < eol_num) { | |
900 | getcmd_cbeep(); | |
901 | break; | |
902 | } | |
903 | ||
904 | buf[num] = '\0'; | |
905 | col = strlen(prompt) + eol_num; | |
906 | num2 = num; | |
907 | if (cmd_auto_complete(prompt, buf, &num2, &col)) { | |
908 | col = num2 - num; | |
909 | num += col; | |
910 | eol_num += col; | |
911 | } | |
912 | break; | |
913 | } | |
914 | #endif | |
501090aa WD |
915 | default: |
916 | cread_add_char(ichar, insert, &num, &eol_num, buf, *len); | |
917 | break; | |
918 | } | |
919 | } | |
920 | *len = eol_num; | |
921 | buf[eol_num] = '\0'; /* lose the newline */ | |
922 | ||
923 | if (buf[0] && buf[0] != CREAD_HIST_CHAR) | |
924 | cread_add_to_hist(buf); | |
925 | hist_cur = hist_add_idx; | |
926 | ||
f9239438 | 927 | return 0; |
501090aa WD |
928 | } |
929 | ||
930 | #endif /* CONFIG_CMDLINE_EDITING */ | |
931 | ||
c609719b WD |
932 | /****************************************************************************/ |
933 | ||
934 | /* | |
935 | * Prompt for input and read a line. | |
936 | * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, | |
937 | * time out when time goes past endtime (timebase time in ticks). | |
938 | * Return: number of read characters | |
939 | * -1 if break | |
940 | * -2 if timed out | |
941 | */ | |
942 | int readline (const char *const prompt) | |
943 | { | |
ecc5500e PT |
944 | /* |
945 | * If console_buffer isn't 0-length the user will be prompted to modify | |
946 | * it instead of entering it from scratch as desired. | |
947 | */ | |
948 | console_buffer[0] = '\0'; | |
949 | ||
6636b62a JY |
950 | return readline_into_buffer(prompt, console_buffer); |
951 | } | |
952 | ||
953 | ||
954 | int readline_into_buffer (const char *const prompt, char * buffer) | |
955 | { | |
956 | char *p = buffer; | |
501090aa | 957 | #ifdef CONFIG_CMDLINE_EDITING |
501090aa | 958 | unsigned int len=MAX_CMDBUF_SIZE; |
d8f961bb | 959 | int rc; |
501090aa WD |
960 | static int initted = 0; |
961 | ||
597f6c26 JY |
962 | /* |
963 | * History uses a global array which is not | |
964 | * writable until after relocation to RAM. | |
965 | * Revert to non-history version if still | |
966 | * running from flash. | |
967 | */ | |
968 | if (gd->flags & GD_FLG_RELOC) { | |
969 | if (!initted) { | |
970 | hist_init(); | |
971 | initted = 1; | |
972 | } | |
973 | ||
e491a71e PT |
974 | if (prompt) |
975 | puts (prompt); | |
597f6c26 JY |
976 | |
977 | rc = cread_line(prompt, p, &len); | |
978 | return rc < 0 ? rc : len; | |
979 | ||
980 | } else { | |
981 | #endif /* CONFIG_CMDLINE_EDITING */ | |
0ec59524 | 982 | char * p_buf = p; |
c609719b WD |
983 | int n = 0; /* buffer index */ |
984 | int plen = 0; /* prompt length */ | |
985 | int col; /* output column cnt */ | |
986 | char c; | |
987 | ||
988 | /* print prompt */ | |
989 | if (prompt) { | |
990 | plen = strlen (prompt); | |
991 | puts (prompt); | |
992 | } | |
993 | col = plen; | |
994 | ||
995 | for (;;) { | |
996 | #ifdef CONFIG_BOOT_RETRY_TIME | |
997 | while (!tstc()) { /* while no incoming data */ | |
998 | if (retry_time >= 0 && get_ticks() > endtime) | |
999 | return (-2); /* timed out */ | |
1000 | } | |
1001 | #endif | |
1002 | WATCHDOG_RESET(); /* Trigger watchdog, if needed */ | |
1003 | ||
1004 | #ifdef CONFIG_SHOW_ACTIVITY | |
1005 | while (!tstc()) { | |
1006 | extern void show_activity(int arg); | |
1007 | show_activity(0); | |
1008 | } | |
1009 | #endif | |
1010 | c = getc(); | |
1011 | ||
1012 | /* | |
1013 | * Special character handling | |
1014 | */ | |
1015 | switch (c) { | |
1016 | case '\r': /* Enter */ | |
1017 | case '\n': | |
1018 | *p = '\0'; | |
1019 | puts ("\r\n"); | |
6636b62a | 1020 | return (p - p_buf); |
c609719b | 1021 | |
27aa8186 WD |
1022 | case '\0': /* nul */ |
1023 | continue; | |
1024 | ||
c609719b | 1025 | case 0x03: /* ^C - break */ |
6636b62a | 1026 | p_buf[0] = '\0'; /* discard input */ |
c609719b WD |
1027 | return (-1); |
1028 | ||
1029 | case 0x15: /* ^U - erase line */ | |
1030 | while (col > plen) { | |
1031 | puts (erase_seq); | |
1032 | --col; | |
1033 | } | |
6636b62a | 1034 | p = p_buf; |
c609719b WD |
1035 | n = 0; |
1036 | continue; | |
1037 | ||
1636d1c8 | 1038 | case 0x17: /* ^W - erase word */ |
6636b62a | 1039 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b | 1040 | while ((n > 0) && (*p != ' ')) { |
6636b62a | 1041 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1042 | } |
1043 | continue; | |
1044 | ||
1045 | case 0x08: /* ^H - backspace */ | |
1046 | case 0x7F: /* DEL - backspace */ | |
6636b62a | 1047 | p=delete_char(p_buf, p, &col, &n, plen); |
c609719b WD |
1048 | continue; |
1049 | ||
1050 | default: | |
1051 | /* | |
1052 | * Must be a normal character then | |
1053 | */ | |
6d0f6bcf | 1054 | if (n < CONFIG_SYS_CBSIZE-2) { |
c609719b | 1055 | if (c == '\t') { /* expand TABs */ |
04a85b3b WD |
1056 | #ifdef CONFIG_AUTO_COMPLETE |
1057 | /* if auto completion triggered just continue */ | |
1058 | *p = '\0'; | |
1059 | if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { | |
6636b62a | 1060 | p = p_buf + n; /* reset */ |
04a85b3b WD |
1061 | continue; |
1062 | } | |
1063 | #endif | |
c609719b WD |
1064 | puts (tab_seq+(col&07)); |
1065 | col += 8 - (col&07); | |
1066 | } else { | |
1067 | ++col; /* echo input */ | |
1068 | putc (c); | |
1069 | } | |
1070 | *p++ = c; | |
1071 | ++n; | |
1072 | } else { /* Buffer full */ | |
1073 | putc ('\a'); | |
1074 | } | |
1075 | } | |
1076 | } | |
597f6c26 JY |
1077 | #ifdef CONFIG_CMDLINE_EDITING |
1078 | } | |
1079 | #endif | |
c609719b WD |
1080 | } |
1081 | ||
1082 | /****************************************************************************/ | |
1083 | ||
1084 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) | |
1085 | { | |
1086 | char *s; | |
1087 | ||
1088 | if (*np == 0) { | |
1089 | return (p); | |
1090 | } | |
1091 | ||
1092 | if (*(--p) == '\t') { /* will retype the whole line */ | |
1093 | while (*colp > plen) { | |
1094 | puts (erase_seq); | |
1095 | (*colp)--; | |
1096 | } | |
1097 | for (s=buffer; s<p; ++s) { | |
1098 | if (*s == '\t') { | |
1099 | puts (tab_seq+((*colp) & 07)); | |
1100 | *colp += 8 - ((*colp) & 07); | |
1101 | } else { | |
1102 | ++(*colp); | |
1103 | putc (*s); | |
1104 | } | |
1105 | } | |
1106 | } else { | |
1107 | puts (erase_seq); | |
1108 | (*colp)--; | |
1109 | } | |
1110 | (*np)--; | |
1111 | return (p); | |
1112 | } | |
1113 | ||
1114 | /****************************************************************************/ | |
1115 | ||
1116 | int parse_line (char *line, char *argv[]) | |
1117 | { | |
1118 | int nargs = 0; | |
1119 | ||
1120 | #ifdef DEBUG_PARSER | |
1121 | printf ("parse_line: \"%s\"\n", line); | |
1122 | #endif | |
6d0f6bcf | 1123 | while (nargs < CONFIG_SYS_MAXARGS) { |
c609719b WD |
1124 | |
1125 | /* skip any white space */ | |
1126 | while ((*line == ' ') || (*line == '\t')) { | |
1127 | ++line; | |
1128 | } | |
1129 | ||
1130 | if (*line == '\0') { /* end of line, no more args */ | |
1131 | argv[nargs] = NULL; | |
1132 | #ifdef DEBUG_PARSER | |
1133 | printf ("parse_line: nargs=%d\n", nargs); | |
1134 | #endif | |
1135 | return (nargs); | |
1136 | } | |
1137 | ||
1138 | argv[nargs++] = line; /* begin of argument string */ | |
1139 | ||
1140 | /* find end of string */ | |
1141 | while (*line && (*line != ' ') && (*line != '\t')) { | |
1142 | ++line; | |
1143 | } | |
1144 | ||
1145 | if (*line == '\0') { /* end of line, no more args */ | |
1146 | argv[nargs] = NULL; | |
1147 | #ifdef DEBUG_PARSER | |
1148 | printf ("parse_line: nargs=%d\n", nargs); | |
1149 | #endif | |
1150 | return (nargs); | |
1151 | } | |
1152 | ||
1153 | *line++ = '\0'; /* terminate current arg */ | |
1154 | } | |
1155 | ||
6d0f6bcf | 1156 | printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS); |
c609719b WD |
1157 | |
1158 | #ifdef DEBUG_PARSER | |
1159 | printf ("parse_line: nargs=%d\n", nargs); | |
1160 | #endif | |
1161 | return (nargs); | |
1162 | } | |
1163 | ||
1164 | /****************************************************************************/ | |
1165 | ||
1166 | static void process_macros (const char *input, char *output) | |
1167 | { | |
1168 | char c, prev; | |
1169 | const char *varname_start = NULL; | |
19973b6a | 1170 | int inputcnt = strlen (input); |
6d0f6bcf | 1171 | int outputcnt = CONFIG_SYS_CBSIZE; |
19973b6a WD |
1172 | int state = 0; /* 0 = waiting for '$' */ |
1173 | ||
1174 | /* 1 = waiting for '(' or '{' */ | |
1175 | /* 2 = waiting for ')' or '}' */ | |
1176 | /* 3 = waiting for ''' */ | |
c609719b WD |
1177 | #ifdef DEBUG_PARSER |
1178 | char *output_start = output; | |
1179 | ||
19973b6a WD |
1180 | printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), |
1181 | input); | |
c609719b WD |
1182 | #endif |
1183 | ||
19973b6a | 1184 | prev = '\0'; /* previous character */ |
c609719b WD |
1185 | |
1186 | while (inputcnt && outputcnt) { | |
8bde7f77 | 1187 | c = *input++; |
19973b6a WD |
1188 | inputcnt--; |
1189 | ||
1190 | if (state != 3) { | |
1191 | /* remove one level of escape characters */ | |
1192 | if ((c == '\\') && (prev != '\\')) { | |
1193 | if (inputcnt-- == 0) | |
1194 | break; | |
1195 | prev = c; | |
1196 | c = *input++; | |
1197 | } | |
c609719b | 1198 | } |
19973b6a WD |
1199 | |
1200 | switch (state) { | |
1201 | case 0: /* Waiting for (unescaped) $ */ | |
1202 | if ((c == '\'') && (prev != '\\')) { | |
1203 | state = 3; | |
1204 | break; | |
1205 | } | |
1206 | if ((c == '$') && (prev != '\\')) { | |
1207 | state++; | |
1208 | } else { | |
c609719b WD |
1209 | *(output++) = c; |
1210 | outputcnt--; | |
1211 | } | |
19973b6a WD |
1212 | break; |
1213 | case 1: /* Waiting for ( */ | |
1214 | if (c == '(' || c == '{') { | |
1215 | state++; | |
1216 | varname_start = input; | |
1217 | } else { | |
1218 | state = 0; | |
1219 | *(output++) = '$'; | |
1220 | outputcnt--; | |
c609719b | 1221 | |
19973b6a WD |
1222 | if (outputcnt) { |
1223 | *(output++) = c; | |
c609719b WD |
1224 | outputcnt--; |
1225 | } | |
19973b6a WD |
1226 | } |
1227 | break; | |
1228 | case 2: /* Waiting for ) */ | |
1229 | if (c == ')' || c == '}') { | |
1230 | int i; | |
6d0f6bcf | 1231 | char envname[CONFIG_SYS_CBSIZE], *envval; |
19973b6a WD |
1232 | int envcnt = input - varname_start - 1; /* Varname # of chars */ |
1233 | ||
1234 | /* Get the varname */ | |
1235 | for (i = 0; i < envcnt; i++) { | |
1236 | envname[i] = varname_start[i]; | |
1237 | } | |
1238 | envname[i] = 0; | |
1239 | ||
1240 | /* Get its value */ | |
1241 | envval = getenv (envname); | |
1242 | ||
1243 | /* Copy into the line if it exists */ | |
1244 | if (envval != NULL) | |
1245 | while ((*envval) && outputcnt) { | |
1246 | *(output++) = *(envval++); | |
1247 | outputcnt--; | |
1248 | } | |
1249 | /* Look for another '$' */ | |
1250 | state = 0; | |
1251 | } | |
1252 | break; | |
1253 | case 3: /* Waiting for ' */ | |
1254 | if ((c == '\'') && (prev != '\\')) { | |
1255 | state = 0; | |
1256 | } else { | |
1257 | *(output++) = c; | |
1258 | outputcnt--; | |
1259 | } | |
1260 | break; | |
a25f862b | 1261 | } |
19973b6a | 1262 | prev = c; |
c609719b WD |
1263 | } |
1264 | ||
1265 | if (outputcnt) | |
1266 | *output = 0; | |
9160b96f BS |
1267 | else |
1268 | *(output - 1) = 0; | |
c609719b WD |
1269 | |
1270 | #ifdef DEBUG_PARSER | |
1271 | printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", | |
19973b6a | 1272 | strlen (output_start), output_start); |
c609719b WD |
1273 | #endif |
1274 | } | |
1275 | ||
1276 | /**************************************************************************** | |
1277 | * returns: | |
1278 | * 1 - command executed, repeatable | |
1279 | * 0 - command executed but not repeatable, interrupted commands are | |
1280 | * always considered not repeatable | |
1281 | * -1 - not executed (unrecognized, bootd recursion or too many args) | |
6d0f6bcf | 1282 | * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is |
c609719b WD |
1283 | * considered unrecognized) |
1284 | * | |
1285 | * WARNING: | |
1286 | * | |
1287 | * We must create a temporary copy of the command since the command we get | |
1288 | * may be the result from getenv(), which returns a pointer directly to | |
1289 | * the environment data, which may change magicly when the command we run | |
1290 | * creates or modifies environment variables (like "bootp" does). | |
1291 | */ | |
1292 | ||
1293 | int run_command (const char *cmd, int flag) | |
1294 | { | |
1295 | cmd_tbl_t *cmdtp; | |
6d0f6bcf | 1296 | char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */ |
c609719b WD |
1297 | char *token; /* start of token in cmdbuf */ |
1298 | char *sep; /* end of token (separator) in cmdbuf */ | |
6d0f6bcf | 1299 | char finaltoken[CONFIG_SYS_CBSIZE]; |
c609719b | 1300 | char *str = cmdbuf; |
6d0f6bcf | 1301 | char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ |
f07771cc | 1302 | int argc, inquotes; |
c609719b | 1303 | int repeatable = 1; |
f07771cc | 1304 | int rc = 0; |
c609719b WD |
1305 | |
1306 | #ifdef DEBUG_PARSER | |
1307 | printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); | |
1308 | puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ | |
1309 | puts ("\"\n"); | |
1310 | #endif | |
1311 | ||
1312 | clear_ctrlc(); /* forget any previous Control C */ | |
1313 | ||
1314 | if (!cmd || !*cmd) { | |
1315 | return -1; /* empty command */ | |
1316 | } | |
1317 | ||
6d0f6bcf | 1318 | if (strlen(cmd) >= CONFIG_SYS_CBSIZE) { |
c609719b WD |
1319 | puts ("## Command too long!\n"); |
1320 | return -1; | |
1321 | } | |
1322 | ||
1323 | strcpy (cmdbuf, cmd); | |
1324 | ||
1325 | /* Process separators and check for invalid | |
1326 | * repeatable commands | |
1327 | */ | |
1328 | ||
1329 | #ifdef DEBUG_PARSER | |
1330 | printf ("[PROCESS_SEPARATORS] %s\n", cmd); | |
1331 | #endif | |
1332 | while (*str) { | |
1333 | ||
1334 | /* | |
1335 | * Find separator, or string end | |
1336 | * Allow simple escape of ';' by writing "\;" | |
1337 | */ | |
a25f862b WD |
1338 | for (inquotes = 0, sep = str; *sep; sep++) { |
1339 | if ((*sep=='\'') && | |
1340 | (*(sep-1) != '\\')) | |
1341 | inquotes=!inquotes; | |
1342 | ||
1343 | if (!inquotes && | |
1344 | (*sep == ';') && /* separator */ | |
c609719b WD |
1345 | ( sep != str) && /* past string start */ |
1346 | (*(sep-1) != '\\')) /* and NOT escaped */ | |
1347 | break; | |
1348 | } | |
1349 | ||
1350 | /* | |
1351 | * Limit the token to data between separators | |
1352 | */ | |
1353 | token = str; | |
1354 | if (*sep) { | |
1355 | str = sep + 1; /* start of command for next pass */ | |
1356 | *sep = '\0'; | |
1357 | } | |
1358 | else | |
1359 | str = sep; /* no more commands for next pass */ | |
1360 | #ifdef DEBUG_PARSER | |
1361 | printf ("token: \"%s\"\n", token); | |
1362 | #endif | |
1363 | ||
1364 | /* find macros in this token and replace them */ | |
1365 | process_macros (token, finaltoken); | |
1366 | ||
1367 | /* Extract arguments */ | |
1264b405 WD |
1368 | if ((argc = parse_line (finaltoken, argv)) == 0) { |
1369 | rc = -1; /* no command at all */ | |
1370 | continue; | |
1371 | } | |
c609719b WD |
1372 | |
1373 | /* Look up command in command table */ | |
1374 | if ((cmdtp = find_cmd(argv[0])) == NULL) { | |
1375 | printf ("Unknown command '%s' - try 'help'\n", argv[0]); | |
f07771cc WD |
1376 | rc = -1; /* give up after bad command */ |
1377 | continue; | |
c609719b WD |
1378 | } |
1379 | ||
1380 | /* found - check max args */ | |
1381 | if (argc > cmdtp->maxargs) { | |
62c3ae7c | 1382 | cmd_usage(cmdtp); |
f07771cc WD |
1383 | rc = -1; |
1384 | continue; | |
c609719b WD |
1385 | } |
1386 | ||
c3517f91 | 1387 | #if defined(CONFIG_CMD_BOOTD) |
c609719b WD |
1388 | /* avoid "bootd" recursion */ |
1389 | if (cmdtp->cmd == do_bootd) { | |
1390 | #ifdef DEBUG_PARSER | |
1391 | printf ("[%s]\n", finaltoken); | |
1392 | #endif | |
1393 | if (flag & CMD_FLAG_BOOTD) { | |
4b9206ed | 1394 | puts ("'bootd' recursion detected\n"); |
f07771cc WD |
1395 | rc = -1; |
1396 | continue; | |
1264b405 | 1397 | } else { |
c609719b | 1398 | flag |= CMD_FLAG_BOOTD; |
1264b405 | 1399 | } |
c609719b | 1400 | } |
90253178 | 1401 | #endif |
c609719b WD |
1402 | |
1403 | /* OK - call function to do the command */ | |
1404 | if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) { | |
f07771cc | 1405 | rc = -1; |
c609719b WD |
1406 | } |
1407 | ||
1408 | repeatable &= cmdtp->repeatable; | |
1409 | ||
1410 | /* Did the user stop this? */ | |
1411 | if (had_ctrlc ()) | |
5afb2020 | 1412 | return -1; /* if stopped then not repeatable */ |
c609719b WD |
1413 | } |
1414 | ||
f07771cc | 1415 | return rc ? rc : repeatable; |
c609719b WD |
1416 | } |
1417 | ||
1418 | /****************************************************************************/ | |
1419 | ||
c3517f91 | 1420 | #if defined(CONFIG_CMD_RUN) |
c609719b WD |
1421 | int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
1422 | { | |
1423 | int i; | |
c609719b WD |
1424 | |
1425 | if (argc < 2) { | |
62c3ae7c | 1426 | cmd_usage(cmdtp); |
c609719b WD |
1427 | return 1; |
1428 | } | |
1429 | ||
1430 | for (i=1; i<argc; ++i) { | |
3e38691e WD |
1431 | char *arg; |
1432 | ||
1433 | if ((arg = getenv (argv[i])) == NULL) { | |
1434 | printf ("## Error: \"%s\" not defined\n", argv[i]); | |
1435 | return 1; | |
1436 | } | |
6d0f6bcf | 1437 | #ifndef CONFIG_SYS_HUSH_PARSER |
3e38691e WD |
1438 | if (run_command (arg, flag) == -1) |
1439 | return 1; | |
c609719b | 1440 | #else |
3e38691e | 1441 | if (parse_string_outer(arg, |
7aa78614 | 1442 | FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0) |
3e38691e | 1443 | return 1; |
c609719b WD |
1444 | #endif |
1445 | } | |
3e38691e | 1446 | return 0; |
c609719b | 1447 | } |
90253178 | 1448 | #endif |