wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 5 | * Add to readline cmdline-editing by |
| 6 | * (C) Copyright 2005 |
| 7 | * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com> |
| 8 | * |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame] | 28 | /* #define DEBUG */ |
| 29 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 30 | #include <common.h> |
| 31 | #include <watchdog.h> |
| 32 | #include <command.h> |
Wolfgang Denk | d9631ec | 2005-09-30 15:18:23 +0200 | [diff] [blame] | 33 | #ifdef CONFIG_MODEM_SUPPORT |
| 34 | #include <malloc.h> /* for free() prototype */ |
| 35 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 36 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 37 | #ifdef CONFIG_SYS_HUSH_PARSER |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 38 | #include <hush.h> |
| 39 | #endif |
| 40 | |
wdenk | bdccc4f | 2003-08-05 17:43:17 +0000 | [diff] [blame] | 41 | #include <post.h> |
| 42 | |
James Yang | 597f6c2 | 2008-05-05 10:22:53 -0500 | [diff] [blame] | 43 | #if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST) || defined(CONFIG_CMDLINE_EDITING) |
Wolfgang Denk | d87080b | 2006-03-31 18:32:53 +0200 | [diff] [blame] | 44 | DECLARE_GLOBAL_DATA_PTR; |
| 45 | #endif |
| 46 | |
Heiko Schocher | fad6340 | 2007-07-13 09:54:17 +0200 | [diff] [blame] | 47 | /* |
| 48 | * Board-specific Platform code can reimplement show_boot_progress () if needed |
| 49 | */ |
| 50 | void inline __show_boot_progress (int val) {} |
Emil Medve | 5e2c08c | 2009-05-12 13:48:32 -0500 | [diff] [blame] | 51 | void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); |
Heiko Schocher | fad6340 | 2007-07-13 09:54:17 +0200 | [diff] [blame] | 52 | |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 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 | |
Bartlomiej Sieka | 4bae909 | 2008-10-01 15:26:31 +0200 | [diff] [blame] | 59 | #if defined(CONFIG_UPDATE_TFTP) |
| 60 | void update_tftp (void); |
| 61 | #endif /* CONFIG_UPDATE_TFTP */ |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 62 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 63 | #define MAX_DELAY_STOP_STR 32 |
| 64 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 65 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
| 66 | static int abortboot(int); |
| 67 | #endif |
| 68 | |
| 69 | #undef DEBUG_PARSER |
| 70 | |
John Schmoller | 6475b9f | 2010-03-12 09:49:23 -0600 | [diff] [blame] | 71 | char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 72 | |
Stefan Roese | 3ca9122 | 2006-07-27 16:11:19 +0200 | [diff] [blame] | 73 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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); |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 104 | struct { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 105 | char* str; |
| 106 | u_int len; |
| 107 | int retry; |
| 108 | } |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 109 | delaykey [] = { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 |
Stefan Roese | f2302d4 | 2008-08-06 14:05:38 +0200 | [diff] [blame] | 122 | printf(CONFIG_AUTOBOOT_PROMPT); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | */ |
Peter Korsgaard | c3284b0 | 2008-12-10 16:24:16 +0100 | [diff] [blame] | 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 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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, |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 178 | delaykey[i].str, |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | } |
Peter Korsgaard | c3284b0 | 2008-12-10 16:24:16 +0100 | [diff] [blame] | 193 | } while (!abort && get_ticks() <= etime); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 194 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 195 | # if DEBUG_BOOTKEYS |
| 196 | if (!abort) |
Ladislav Michl | ada4d40 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 197 | puts("key timeout\n"); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 198 | # endif |
| 199 | |
dzu | 8cb8143 | 2003-10-24 13:14:45 +0000 | [diff] [blame] | 200 | #ifdef CONFIG_SILENT_CONSOLE |
Ladislav Michl | 4ec5bd5 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 201 | if (abort) |
| 202 | gd->flags &= ~GD_FLG_SILENT; |
dzu | 8cb8143 | 2003-10-24 13:14:45 +0000 | [diff] [blame] | 203 | #endif |
| 204 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 205 | return abort; |
| 206 | } |
| 207 | |
| 208 | # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ |
| 209 | |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 210 | #ifdef CONFIG_MENUKEY |
| 211 | static int menukey = 0; |
| 212 | #endif |
| 213 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 214 | static __inline__ int abortboot(int bootdelay) |
| 215 | { |
| 216 | int abort = 0; |
| 217 | |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 218 | #ifdef CONFIG_MENUPROMPT |
Stefan Roese | f2302d4 | 2008-08-06 14:05:38 +0200 | [diff] [blame] | 219 | printf(CONFIG_MENUPROMPT); |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 220 | #else |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 221 | printf("Hit any key to stop autoboot: %2d ", bootdelay); |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 222 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 223 | |
| 224 | #if defined CONFIG_ZERO_BOOTDELAY_CHECK |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 225 | /* |
| 226 | * Check if key already pressed |
| 227 | * Don't check if bootdelay < 0 |
| 228 | */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 229 | if (bootdelay >= 0) { |
| 230 | if (tstc()) { /* we got a key press */ |
| 231 | (void) getc(); /* consume input */ |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 232 | puts ("\b\b\b 0"); |
Ladislav Michl | 4ec5bd5 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 233 | abort = 1; /* don't auto boot */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 234 | } |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 235 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 236 | #endif |
| 237 | |
wdenk | f72da34 | 2003-10-10 10:05:42 +0000 | [diff] [blame] | 238 | while ((bootdelay > 0) && (!abort)) { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 */ |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 247 | # ifdef CONFIG_MENUKEY |
| 248 | menukey = getc(); |
| 249 | # else |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 250 | (void) getc(); /* consume input */ |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 251 | # endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 252 | break; |
| 253 | } |
Ladislav Michl | ada4d40 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 254 | udelay(10000); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 255 | } |
| 256 | |
Ladislav Michl | ada4d40 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 257 | printf("\b\b\b%2d ", bootdelay); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 258 | } |
| 259 | |
Ladislav Michl | ada4d40 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 260 | putc('\n'); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 261 | |
wdenk | f72da34 | 2003-10-10 10:05:42 +0000 | [diff] [blame] | 262 | #ifdef CONFIG_SILENT_CONSOLE |
Ladislav Michl | 4ec5bd5 | 2007-04-25 16:01:26 +0200 | [diff] [blame] | 263 | if (abort) |
| 264 | gd->flags &= ~GD_FLG_SILENT; |
wdenk | f72da34 | 2003-10-10 10:05:42 +0000 | [diff] [blame] | 265 | #endif |
| 266 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 267 | return abort; |
| 268 | } |
| 269 | # endif /* CONFIG_AUTOBOOT_KEYED */ |
| 270 | #endif /* CONFIG_BOOTDELAY >= 0 */ |
| 271 | |
| 272 | /****************************************************************************/ |
| 273 | |
| 274 | void main_loop (void) |
| 275 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 276 | #ifndef CONFIG_SYS_HUSH_PARSER |
| 277 | static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, }; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 |
wdenk | bdccc4f | 2003-08-05 17:43:17 +0000 | [diff] [blame] | 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 */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
wdenk | bdccc4f | 2003-08-05 17:43:17 +0000 | [diff] [blame] | 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 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 318 | #ifdef CONFIG_MODEM_SUPPORT |
| 319 | debug ("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); |
| 320 | if (do_mdm_init) { |
Wolfgang Denk | 77ddac9 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 321 | char *str = strdup(getenv("mdm_cmd")); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
stroese | 0587597 | 2003-04-04 15:44:49 +0000 | [diff] [blame] | 329 | #ifdef CONFIG_VERSION_VARIABLE |
| 330 | { |
| 331 | extern char version_string[]; |
stroese | 0587597 | 2003-04-04 15:44:49 +0000 | [diff] [blame] | 332 | |
stroese | 155cb01 | 2003-07-11 08:00:33 +0000 | [diff] [blame] | 333 | setenv ("ver", version_string); /* set version variable */ |
stroese | 0587597 | 2003-04-04 15:44:49 +0000 | [diff] [blame] | 334 | } |
| 335 | #endif /* CONFIG_VERSION_VARIABLE */ |
| 336 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 337 | #ifdef CONFIG_SYS_HUSH_PARSER |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 338 | u_boot_hush_start (); |
| 339 | #endif |
| 340 | |
Heiko Schocher | 81473f6 | 2008-10-15 09:40:28 +0200 | [diff] [blame] | 341 | #if defined(CONFIG_HUSH_INIT_VAR) |
| 342 | hush_init_var (); |
| 343 | #endif |
| 344 | |
wdenk | 04a85b3 | 2004-04-15 18:22:41 +0000 | [diff] [blame] | 345 | #ifdef CONFIG_AUTO_COMPLETE |
| 346 | install_auto_complete(); |
| 347 | #endif |
| 348 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 355 | # ifndef CONFIG_SYS_HUSH_PARSER |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
Wolfgang Denk | 143cd21 | 2010-03-11 23:56:03 +0100 | [diff] [blame] | 368 | #if defined(CONFIG_UPDATE_TFTP) |
| 369 | update_tftp (); |
| 370 | #endif /* CONFIG_UPDATE_TFTP */ |
| 371 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 372 | #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) |
| 373 | s = getenv ("bootdelay"); |
| 374 | bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; |
| 375 | |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame] | 376 | debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 377 | |
| 378 | # ifdef CONFIG_BOOT_RETRY_TIME |
wdenk | 6dd652f | 2003-06-19 23:40:20 +0000 | [diff] [blame] | 379 | init_cmd_timeout (); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 380 | # endif /* CONFIG_BOOT_RETRY_TIME */ |
| 381 | |
Yuri Tikhonov | b428f6a | 2008-02-04 14:11:03 +0100 | [diff] [blame] | 382 | #ifdef CONFIG_POST |
| 383 | if (gd->flags & GD_FLG_POSTFAIL) { |
| 384 | s = getenv("failbootcmd"); |
| 385 | } |
| 386 | else |
| 387 | #endif /* CONFIG_POST */ |
wdenk | bdccc4f | 2003-08-05 17:43:17 +0000 | [diff] [blame] | 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"); |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame] | 397 | |
| 398 | debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); |
| 399 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 405 | # ifndef CONFIG_SYS_HUSH_PARSER |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | } |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 416 | |
| 417 | # ifdef CONFIG_MENUKEY |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame] | 418 | if (menukey == CONFIG_MENUKEY) { |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 419 | s = getenv("menucmd"); |
wdenk | a6c7ad2 | 2002-12-03 21:28:10 +0000 | [diff] [blame] | 420 | if (s) { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 421 | # ifndef CONFIG_SYS_HUSH_PARSER |
wdenk | 6225c5d | 2005-01-09 23:33:49 +0000 | [diff] [blame] | 422 | run_command (s, 0); |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 423 | # else |
| 424 | parse_string_outer(s, FLAG_PARSE_SEMICOLON | |
| 425 | FLAG_EXIT_FROM_LOOP); |
| 426 | # endif |
| 427 | } |
| 428 | } |
| 429 | #endif /* CONFIG_MENUKEY */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 430 | #endif /* CONFIG_BOOTDELAY */ |
| 431 | |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 432 | #ifdef CONFIG_AMIGAONEG3SE |
| 433 | { |
| 434 | extern void video_banner(void); |
| 435 | video_banner(); |
| 436 | } |
| 437 | #endif |
| 438 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 439 | /* |
| 440 | * Main Loop for Monitor Command Processing |
| 441 | */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 442 | #ifdef CONFIG_SYS_HUSH_PARSER |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 456 | len = readline (CONFIG_SYS_PROMPT); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | */ |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 467 | puts ("\nTimed out waiting for command\n"); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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) |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 478 | puts ("<INTERRUPT>\n"); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 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 | } |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 487 | #endif /*CONFIG_SYS_HUSH_PARSER*/ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 488 | } |
| 489 | |
wdenk | 6dd652f | 2003-06-19 23:40:20 +0000 | [diff] [blame] | 490 | #ifdef CONFIG_BOOT_RETRY_TIME |
| 491 | /*************************************************************************** |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 492 | * initialize command line timeout |
wdenk | 6dd652f | 2003-06-19 23:40:20 +0000 | [diff] [blame] | 493 | */ |
| 494 | void init_cmd_timeout(void) |
| 495 | { |
| 496 | char *s = getenv ("bootretry"); |
| 497 | |
| 498 | if (s != NULL) |
wdenk | b028f71 | 2003-12-07 21:39:28 +0000 | [diff] [blame] | 499 | retry_time = (int)simple_strtol(s, NULL, 10); |
wdenk | 6dd652f | 2003-06-19 23:40:20 +0000 | [diff] [blame] | 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 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 507 | /*************************************************************************** |
| 508 | * reset command line timeout to retry_time seconds |
| 509 | */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 510 | void reset_cmd_timeout(void) |
| 511 | { |
| 512 | endtime = endtick(retry_time); |
| 513 | } |
| 514 | #endif |
| 515 | |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 516 | #ifdef CONFIG_CMDLINE_EDITING |
| 517 | |
| 518 | /* |
| 519 | * cmdline-editing related codes from vivi. |
| 520 | * Author: Janghoon Lyu <nandy@mizi.com> |
| 521 | */ |
| 522 | |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 523 | #define putnstr(str,n) do { \ |
Andrew Klossner | dc4b0b3 | 2008-07-07 06:41:14 -0700 | [diff] [blame] | 524 | printf ("%.*s", (int)n, str); \ |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 525 | } while (0) |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 526 | |
| 527 | #define CTL_CH(c) ((c) - 'a' + 1) |
| 528 | |
John Schmoller | d611295 | 2010-03-12 09:49:24 -0600 | [diff] [blame] | 529 | #define MAX_CMDBUF_SIZE CONFIG_SYS_CBSIZE |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 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]; |
John Schmoller | 6475b9f | 2010-03-12 09:49:23 -0600 | [diff] [blame] | 549 | char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */ |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 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 | |
Stefan Roese | 3ca9122 | 2006-07-27 16:11:19 +0200 | [diff] [blame] | 623 | #ifndef CONFIG_CMDLINE_EDITING |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 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 | } |
Stefan Roese | 3ca9122 | 2006-07-27 16:11:19 +0200 | [diff] [blame] | 642 | #endif /* CONFIG_CMDLINE_EDITING */ |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 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 | |
Jean-Christophe PLAGNIOL-VILLARD | 23d0baf | 2007-12-22 15:52:58 +0100 | [diff] [blame] | 714 | static int cread_line(const char *const prompt, char *buf, unsigned int *len) |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 715 | { |
| 716 | unsigned long num = 0; |
| 717 | unsigned long eol_num = 0; |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 718 | unsigned long wlen; |
| 719 | char ichar; |
| 720 | int insert = 1; |
| 721 | int esc_len = 0; |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 722 | char esc_save[8]; |
Peter Tyser | ecc5500 | 2009-10-25 15:12:54 -0500 | [diff] [blame] | 723 | int init_len = strlen(buf); |
| 724 | |
| 725 | if (init_len) |
| 726 | cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 727 | |
| 728 | while (1) { |
Andreas Engel | 00ac50e | 2008-01-09 17:10:56 +0100 | [diff] [blame] | 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 */ |
Jens Scharsig | 30dc165 | 2010-04-09 19:02:38 +0200 | [diff] [blame] | 733 | WATCHDOG_RESET(); |
Andreas Engel | 00ac50e | 2008-01-09 17:10:56 +0100 | [diff] [blame] | 734 | } |
| 735 | #endif |
| 736 | |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 737 | ichar = getcmd_getch(); |
| 738 | |
| 739 | if ((ichar == '\n') || (ichar == '\r')) { |
Wolfgang Denk | dd9f06f | 2006-07-21 11:34:34 +0200 | [diff] [blame] | 740 | putc('\n'); |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 741 | break; |
| 742 | } |
| 743 | |
| 744 | /* |
| 745 | * handle standard linux xterm esc sequences for arrow key, etc. |
| 746 | */ |
| 747 | if (esc_len != 0) { |
| 748 | if (esc_len == 1) { |
| 749 | if (ichar == '[') { |
| 750 | esc_save[esc_len] = ichar; |
| 751 | esc_len = 2; |
| 752 | } else { |
| 753 | cread_add_str(esc_save, esc_len, insert, |
| 754 | &num, &eol_num, buf, *len); |
| 755 | esc_len = 0; |
| 756 | } |
| 757 | continue; |
| 758 | } |
| 759 | |
| 760 | switch (ichar) { |
| 761 | |
| 762 | case 'D': /* <- key */ |
| 763 | ichar = CTL_CH('b'); |
| 764 | esc_len = 0; |
| 765 | break; |
| 766 | case 'C': /* -> key */ |
| 767 | ichar = CTL_CH('f'); |
| 768 | esc_len = 0; |
| 769 | break; /* pass off to ^F handler */ |
| 770 | case 'H': /* Home key */ |
| 771 | ichar = CTL_CH('a'); |
| 772 | esc_len = 0; |
| 773 | break; /* pass off to ^A handler */ |
| 774 | case 'A': /* up arrow */ |
| 775 | ichar = CTL_CH('p'); |
| 776 | esc_len = 0; |
| 777 | break; /* pass off to ^P handler */ |
| 778 | case 'B': /* down arrow */ |
| 779 | ichar = CTL_CH('n'); |
| 780 | esc_len = 0; |
| 781 | break; /* pass off to ^N handler */ |
| 782 | default: |
| 783 | esc_save[esc_len++] = ichar; |
| 784 | cread_add_str(esc_save, esc_len, insert, |
| 785 | &num, &eol_num, buf, *len); |
| 786 | esc_len = 0; |
| 787 | continue; |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | switch (ichar) { |
| 792 | case 0x1b: |
| 793 | if (esc_len == 0) { |
| 794 | esc_save[esc_len] = ichar; |
| 795 | esc_len = 1; |
| 796 | } else { |
Wolfgang Denk | dd9f06f | 2006-07-21 11:34:34 +0200 | [diff] [blame] | 797 | puts("impossible condition #876\n"); |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 798 | esc_len = 0; |
| 799 | } |
| 800 | break; |
| 801 | |
| 802 | case CTL_CH('a'): |
| 803 | BEGINNING_OF_LINE(); |
| 804 | break; |
| 805 | case CTL_CH('c'): /* ^C - break */ |
| 806 | *buf = '\0'; /* discard input */ |
| 807 | return (-1); |
| 808 | case CTL_CH('f'): |
| 809 | if (num < eol_num) { |
| 810 | getcmd_putch(buf[num]); |
| 811 | num++; |
| 812 | } |
| 813 | break; |
| 814 | case CTL_CH('b'): |
| 815 | if (num) { |
| 816 | getcmd_putch(CTL_BACKSPACE); |
| 817 | num--; |
| 818 | } |
| 819 | break; |
| 820 | case CTL_CH('d'): |
| 821 | if (num < eol_num) { |
| 822 | wlen = eol_num - num - 1; |
| 823 | if (wlen) { |
| 824 | memmove(&buf[num], &buf[num+1], wlen); |
| 825 | putnstr(buf + num, wlen); |
| 826 | } |
| 827 | |
| 828 | getcmd_putch(' '); |
| 829 | do { |
| 830 | getcmd_putch(CTL_BACKSPACE); |
| 831 | } while (wlen--); |
| 832 | eol_num--; |
| 833 | } |
| 834 | break; |
| 835 | case CTL_CH('k'): |
| 836 | ERASE_TO_EOL(); |
| 837 | break; |
| 838 | case CTL_CH('e'): |
| 839 | REFRESH_TO_EOL(); |
| 840 | break; |
| 841 | case CTL_CH('o'): |
| 842 | insert = !insert; |
| 843 | break; |
| 844 | case CTL_CH('x'): |
Jean-Christophe PLAGNIOL-VILLARD | 23d0baf | 2007-12-22 15:52:58 +0100 | [diff] [blame] | 845 | case CTL_CH('u'): |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 846 | BEGINNING_OF_LINE(); |
| 847 | ERASE_TO_EOL(); |
| 848 | break; |
| 849 | case DEL: |
| 850 | case DEL7: |
| 851 | case 8: |
| 852 | if (num) { |
| 853 | wlen = eol_num - num; |
| 854 | num--; |
| 855 | memmove(&buf[num], &buf[num+1], wlen); |
| 856 | getcmd_putch(CTL_BACKSPACE); |
| 857 | putnstr(buf + num, wlen); |
| 858 | getcmd_putch(' '); |
| 859 | do { |
| 860 | getcmd_putch(CTL_BACKSPACE); |
| 861 | } while (wlen--); |
| 862 | eol_num--; |
| 863 | } |
| 864 | break; |
| 865 | case CTL_CH('p'): |
| 866 | case CTL_CH('n'): |
| 867 | { |
| 868 | char * hline; |
| 869 | |
| 870 | esc_len = 0; |
| 871 | |
| 872 | if (ichar == CTL_CH('p')) |
| 873 | hline = hist_prev(); |
| 874 | else |
| 875 | hline = hist_next(); |
| 876 | |
| 877 | if (!hline) { |
| 878 | getcmd_cbeep(); |
| 879 | continue; |
| 880 | } |
| 881 | |
| 882 | /* nuke the current line */ |
| 883 | /* first, go home */ |
| 884 | BEGINNING_OF_LINE(); |
| 885 | |
| 886 | /* erase to end of line */ |
| 887 | ERASE_TO_EOL(); |
| 888 | |
| 889 | /* copy new line into place and display */ |
| 890 | strcpy(buf, hline); |
| 891 | eol_num = strlen(buf); |
| 892 | REFRESH_TO_EOL(); |
| 893 | continue; |
| 894 | } |
Jean-Christophe PLAGNIOL-VILLARD | 23d0baf | 2007-12-22 15:52:58 +0100 | [diff] [blame] | 895 | #ifdef CONFIG_AUTO_COMPLETE |
| 896 | case '\t': { |
| 897 | int num2, col; |
| 898 | |
| 899 | /* do not autocomplete when in the middle */ |
| 900 | if (num < eol_num) { |
| 901 | getcmd_cbeep(); |
| 902 | break; |
| 903 | } |
| 904 | |
| 905 | buf[num] = '\0'; |
| 906 | col = strlen(prompt) + eol_num; |
| 907 | num2 = num; |
| 908 | if (cmd_auto_complete(prompt, buf, &num2, &col)) { |
| 909 | col = num2 - num; |
| 910 | num += col; |
| 911 | eol_num += col; |
| 912 | } |
| 913 | break; |
| 914 | } |
| 915 | #endif |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 916 | default: |
| 917 | cread_add_char(ichar, insert, &num, &eol_num, buf, *len); |
| 918 | break; |
| 919 | } |
| 920 | } |
| 921 | *len = eol_num; |
| 922 | buf[eol_num] = '\0'; /* lose the newline */ |
| 923 | |
| 924 | if (buf[0] && buf[0] != CREAD_HIST_CHAR) |
| 925 | cread_add_to_hist(buf); |
| 926 | hist_cur = hist_add_idx; |
| 927 | |
Peter Tyser | f923943 | 2009-10-25 15:12:53 -0500 | [diff] [blame] | 928 | return 0; |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 929 | } |
| 930 | |
| 931 | #endif /* CONFIG_CMDLINE_EDITING */ |
| 932 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 933 | /****************************************************************************/ |
| 934 | |
| 935 | /* |
| 936 | * Prompt for input and read a line. |
| 937 | * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, |
| 938 | * time out when time goes past endtime (timebase time in ticks). |
| 939 | * Return: number of read characters |
| 940 | * -1 if break |
| 941 | * -2 if timed out |
| 942 | */ |
| 943 | int readline (const char *const prompt) |
| 944 | { |
Peter Tyser | ecc5500 | 2009-10-25 15:12:54 -0500 | [diff] [blame] | 945 | /* |
| 946 | * If console_buffer isn't 0-length the user will be prompted to modify |
| 947 | * it instead of entering it from scratch as desired. |
| 948 | */ |
| 949 | console_buffer[0] = '\0'; |
| 950 | |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 951 | return readline_into_buffer(prompt, console_buffer); |
| 952 | } |
| 953 | |
| 954 | |
| 955 | int readline_into_buffer (const char *const prompt, char * buffer) |
| 956 | { |
| 957 | char *p = buffer; |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 958 | #ifdef CONFIG_CMDLINE_EDITING |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 959 | unsigned int len=MAX_CMDBUF_SIZE; |
Stefan Roese | d8f961b | 2006-08-07 15:08:44 +0200 | [diff] [blame] | 960 | int rc; |
Wolfgang Denk | 501090a | 2006-07-21 11:33:45 +0200 | [diff] [blame] | 961 | static int initted = 0; |
| 962 | |
James Yang | 597f6c2 | 2008-05-05 10:22:53 -0500 | [diff] [blame] | 963 | /* |
| 964 | * History uses a global array which is not |
| 965 | * writable until after relocation to RAM. |
| 966 | * Revert to non-history version if still |
| 967 | * running from flash. |
| 968 | */ |
| 969 | if (gd->flags & GD_FLG_RELOC) { |
| 970 | if (!initted) { |
| 971 | hist_init(); |
| 972 | initted = 1; |
| 973 | } |
| 974 | |
Peter Tyser | e491a71 | 2009-10-25 15:12:52 -0500 | [diff] [blame] | 975 | if (prompt) |
| 976 | puts (prompt); |
James Yang | 597f6c2 | 2008-05-05 10:22:53 -0500 | [diff] [blame] | 977 | |
| 978 | rc = cread_line(prompt, p, &len); |
| 979 | return rc < 0 ? rc : len; |
| 980 | |
| 981 | } else { |
| 982 | #endif /* CONFIG_CMDLINE_EDITING */ |
Kumar Gala | 0ec5952 | 2008-01-10 02:22:05 -0600 | [diff] [blame] | 983 | char * p_buf = p; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 984 | int n = 0; /* buffer index */ |
| 985 | int plen = 0; /* prompt length */ |
| 986 | int col; /* output column cnt */ |
| 987 | char c; |
| 988 | |
| 989 | /* print prompt */ |
| 990 | if (prompt) { |
| 991 | plen = strlen (prompt); |
| 992 | puts (prompt); |
| 993 | } |
| 994 | col = plen; |
| 995 | |
| 996 | for (;;) { |
| 997 | #ifdef CONFIG_BOOT_RETRY_TIME |
| 998 | while (!tstc()) { /* while no incoming data */ |
| 999 | if (retry_time >= 0 && get_ticks() > endtime) |
| 1000 | return (-2); /* timed out */ |
Jens Scharsig | 30dc165 | 2010-04-09 19:02:38 +0200 | [diff] [blame] | 1001 | WATCHDOG_RESET(); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1002 | } |
| 1003 | #endif |
| 1004 | WATCHDOG_RESET(); /* Trigger watchdog, if needed */ |
| 1005 | |
| 1006 | #ifdef CONFIG_SHOW_ACTIVITY |
| 1007 | while (!tstc()) { |
| 1008 | extern void show_activity(int arg); |
| 1009 | show_activity(0); |
Jens Scharsig | 30dc165 | 2010-04-09 19:02:38 +0200 | [diff] [blame] | 1010 | WATCHDOG_RESET(); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1011 | } |
| 1012 | #endif |
| 1013 | c = getc(); |
| 1014 | |
| 1015 | /* |
| 1016 | * Special character handling |
| 1017 | */ |
| 1018 | switch (c) { |
| 1019 | case '\r': /* Enter */ |
| 1020 | case '\n': |
| 1021 | *p = '\0'; |
| 1022 | puts ("\r\n"); |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1023 | return (p - p_buf); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1024 | |
wdenk | 27aa818 | 2004-03-23 22:37:33 +0000 | [diff] [blame] | 1025 | case '\0': /* nul */ |
| 1026 | continue; |
| 1027 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1028 | case 0x03: /* ^C - break */ |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1029 | p_buf[0] = '\0'; /* discard input */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1030 | return (-1); |
| 1031 | |
| 1032 | case 0x15: /* ^U - erase line */ |
| 1033 | while (col > plen) { |
| 1034 | puts (erase_seq); |
| 1035 | --col; |
| 1036 | } |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1037 | p = p_buf; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1038 | n = 0; |
| 1039 | continue; |
| 1040 | |
Wolfgang Denk | 1636d1c | 2007-06-22 23:59:00 +0200 | [diff] [blame] | 1041 | case 0x17: /* ^W - erase word */ |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1042 | p=delete_char(p_buf, p, &col, &n, plen); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1043 | while ((n > 0) && (*p != ' ')) { |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1044 | p=delete_char(p_buf, p, &col, &n, plen); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1045 | } |
| 1046 | continue; |
| 1047 | |
| 1048 | case 0x08: /* ^H - backspace */ |
| 1049 | case 0x7F: /* DEL - backspace */ |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1050 | p=delete_char(p_buf, p, &col, &n, plen); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1051 | continue; |
| 1052 | |
| 1053 | default: |
| 1054 | /* |
| 1055 | * Must be a normal character then |
| 1056 | */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1057 | if (n < CONFIG_SYS_CBSIZE-2) { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1058 | if (c == '\t') { /* expand TABs */ |
wdenk | 04a85b3 | 2004-04-15 18:22:41 +0000 | [diff] [blame] | 1059 | #ifdef CONFIG_AUTO_COMPLETE |
| 1060 | /* if auto completion triggered just continue */ |
| 1061 | *p = '\0'; |
| 1062 | if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { |
James Yang | 6636b62 | 2008-01-09 11:17:49 -0600 | [diff] [blame] | 1063 | p = p_buf + n; /* reset */ |
wdenk | 04a85b3 | 2004-04-15 18:22:41 +0000 | [diff] [blame] | 1064 | continue; |
| 1065 | } |
| 1066 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1067 | puts (tab_seq+(col&07)); |
| 1068 | col += 8 - (col&07); |
| 1069 | } else { |
| 1070 | ++col; /* echo input */ |
| 1071 | putc (c); |
| 1072 | } |
| 1073 | *p++ = c; |
| 1074 | ++n; |
| 1075 | } else { /* Buffer full */ |
| 1076 | putc ('\a'); |
| 1077 | } |
| 1078 | } |
| 1079 | } |
James Yang | 597f6c2 | 2008-05-05 10:22:53 -0500 | [diff] [blame] | 1080 | #ifdef CONFIG_CMDLINE_EDITING |
| 1081 | } |
| 1082 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1083 | } |
| 1084 | |
| 1085 | /****************************************************************************/ |
| 1086 | |
| 1087 | static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) |
| 1088 | { |
| 1089 | char *s; |
| 1090 | |
| 1091 | if (*np == 0) { |
| 1092 | return (p); |
| 1093 | } |
| 1094 | |
| 1095 | if (*(--p) == '\t') { /* will retype the whole line */ |
| 1096 | while (*colp > plen) { |
| 1097 | puts (erase_seq); |
| 1098 | (*colp)--; |
| 1099 | } |
| 1100 | for (s=buffer; s<p; ++s) { |
| 1101 | if (*s == '\t') { |
| 1102 | puts (tab_seq+((*colp) & 07)); |
| 1103 | *colp += 8 - ((*colp) & 07); |
| 1104 | } else { |
| 1105 | ++(*colp); |
| 1106 | putc (*s); |
| 1107 | } |
| 1108 | } |
| 1109 | } else { |
| 1110 | puts (erase_seq); |
| 1111 | (*colp)--; |
| 1112 | } |
| 1113 | (*np)--; |
| 1114 | return (p); |
| 1115 | } |
| 1116 | |
| 1117 | /****************************************************************************/ |
| 1118 | |
| 1119 | int parse_line (char *line, char *argv[]) |
| 1120 | { |
| 1121 | int nargs = 0; |
| 1122 | |
| 1123 | #ifdef DEBUG_PARSER |
| 1124 | printf ("parse_line: \"%s\"\n", line); |
| 1125 | #endif |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1126 | while (nargs < CONFIG_SYS_MAXARGS) { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1127 | |
| 1128 | /* skip any white space */ |
| 1129 | while ((*line == ' ') || (*line == '\t')) { |
| 1130 | ++line; |
| 1131 | } |
| 1132 | |
| 1133 | if (*line == '\0') { /* end of line, no more args */ |
| 1134 | argv[nargs] = NULL; |
| 1135 | #ifdef DEBUG_PARSER |
| 1136 | printf ("parse_line: nargs=%d\n", nargs); |
| 1137 | #endif |
| 1138 | return (nargs); |
| 1139 | } |
| 1140 | |
| 1141 | argv[nargs++] = line; /* begin of argument string */ |
| 1142 | |
| 1143 | /* find end of string */ |
| 1144 | while (*line && (*line != ' ') && (*line != '\t')) { |
| 1145 | ++line; |
| 1146 | } |
| 1147 | |
| 1148 | if (*line == '\0') { /* end of line, no more args */ |
| 1149 | argv[nargs] = NULL; |
| 1150 | #ifdef DEBUG_PARSER |
| 1151 | printf ("parse_line: nargs=%d\n", nargs); |
| 1152 | #endif |
| 1153 | return (nargs); |
| 1154 | } |
| 1155 | |
| 1156 | *line++ = '\0'; /* terminate current arg */ |
| 1157 | } |
| 1158 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1159 | printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1160 | |
| 1161 | #ifdef DEBUG_PARSER |
| 1162 | printf ("parse_line: nargs=%d\n", nargs); |
| 1163 | #endif |
| 1164 | return (nargs); |
| 1165 | } |
| 1166 | |
| 1167 | /****************************************************************************/ |
| 1168 | |
| 1169 | static void process_macros (const char *input, char *output) |
| 1170 | { |
| 1171 | char c, prev; |
| 1172 | const char *varname_start = NULL; |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1173 | int inputcnt = strlen (input); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1174 | int outputcnt = CONFIG_SYS_CBSIZE; |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1175 | int state = 0; /* 0 = waiting for '$' */ |
| 1176 | |
| 1177 | /* 1 = waiting for '(' or '{' */ |
| 1178 | /* 2 = waiting for ')' or '}' */ |
| 1179 | /* 3 = waiting for ''' */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1180 | #ifdef DEBUG_PARSER |
| 1181 | char *output_start = output; |
| 1182 | |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1183 | printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), |
| 1184 | input); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1185 | #endif |
| 1186 | |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1187 | prev = '\0'; /* previous character */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1188 | |
| 1189 | while (inputcnt && outputcnt) { |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 1190 | c = *input++; |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1191 | inputcnt--; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1192 | |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1193 | if (state != 3) { |
| 1194 | /* remove one level of escape characters */ |
| 1195 | if ((c == '\\') && (prev != '\\')) { |
| 1196 | if (inputcnt-- == 0) |
| 1197 | break; |
| 1198 | prev = c; |
| 1199 | c = *input++; |
| 1200 | } |
wdenk | a25f862 | 2003-01-02 23:57:29 +0000 | [diff] [blame] | 1201 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1202 | |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1203 | switch (state) { |
| 1204 | case 0: /* Waiting for (unescaped) $ */ |
| 1205 | if ((c == '\'') && (prev != '\\')) { |
| 1206 | state = 3; |
| 1207 | break; |
| 1208 | } |
| 1209 | if ((c == '$') && (prev != '\\')) { |
| 1210 | state++; |
| 1211 | } else { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1212 | *(output++) = c; |
| 1213 | outputcnt--; |
| 1214 | } |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1215 | break; |
| 1216 | case 1: /* Waiting for ( */ |
| 1217 | if (c == '(' || c == '{') { |
| 1218 | state++; |
| 1219 | varname_start = input; |
| 1220 | } else { |
| 1221 | state = 0; |
| 1222 | *(output++) = '$'; |
| 1223 | outputcnt--; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1224 | |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1225 | if (outputcnt) { |
| 1226 | *(output++) = c; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1227 | outputcnt--; |
| 1228 | } |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1229 | } |
| 1230 | break; |
| 1231 | case 2: /* Waiting for ) */ |
| 1232 | if (c == ')' || c == '}') { |
| 1233 | int i; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1234 | char envname[CONFIG_SYS_CBSIZE], *envval; |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1235 | int envcnt = input - varname_start - 1; /* Varname # of chars */ |
| 1236 | |
| 1237 | /* Get the varname */ |
| 1238 | for (i = 0; i < envcnt; i++) { |
| 1239 | envname[i] = varname_start[i]; |
| 1240 | } |
| 1241 | envname[i] = 0; |
| 1242 | |
| 1243 | /* Get its value */ |
| 1244 | envval = getenv (envname); |
| 1245 | |
| 1246 | /* Copy into the line if it exists */ |
| 1247 | if (envval != NULL) |
| 1248 | while ((*envval) && outputcnt) { |
| 1249 | *(output++) = *(envval++); |
| 1250 | outputcnt--; |
| 1251 | } |
| 1252 | /* Look for another '$' */ |
| 1253 | state = 0; |
| 1254 | } |
| 1255 | break; |
| 1256 | case 3: /* Waiting for ' */ |
| 1257 | if ((c == '\'') && (prev != '\\')) { |
| 1258 | state = 0; |
| 1259 | } else { |
| 1260 | *(output++) = c; |
| 1261 | outputcnt--; |
| 1262 | } |
| 1263 | break; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1264 | } |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1265 | prev = c; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1266 | } |
| 1267 | |
| 1268 | if (outputcnt) |
| 1269 | *output = 0; |
Bartlomiej Sieka | 9160b96 | 2007-05-27 17:04:18 +0200 | [diff] [blame] | 1270 | else |
| 1271 | *(output - 1) = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1272 | |
| 1273 | #ifdef DEBUG_PARSER |
| 1274 | printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", |
Wolfgang Denk | 19973b6 | 2006-10-28 00:38:39 +0200 | [diff] [blame] | 1275 | strlen (output_start), output_start); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1276 | #endif |
| 1277 | } |
| 1278 | |
| 1279 | /**************************************************************************** |
| 1280 | * returns: |
| 1281 | * 1 - command executed, repeatable |
| 1282 | * 0 - command executed but not repeatable, interrupted commands are |
| 1283 | * always considered not repeatable |
| 1284 | * -1 - not executed (unrecognized, bootd recursion or too many args) |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1285 | * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1286 | * considered unrecognized) |
| 1287 | * |
| 1288 | * WARNING: |
| 1289 | * |
| 1290 | * We must create a temporary copy of the command since the command we get |
| 1291 | * may be the result from getenv(), which returns a pointer directly to |
| 1292 | * the environment data, which may change magicly when the command we run |
| 1293 | * creates or modifies environment variables (like "bootp" does). |
| 1294 | */ |
| 1295 | |
| 1296 | int run_command (const char *cmd, int flag) |
| 1297 | { |
| 1298 | cmd_tbl_t *cmdtp; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1299 | char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1300 | char *token; /* start of token in cmdbuf */ |
| 1301 | char *sep; /* end of token (separator) in cmdbuf */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1302 | char finaltoken[CONFIG_SYS_CBSIZE]; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1303 | char *str = cmdbuf; |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1304 | char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1305 | int argc, inquotes; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1306 | int repeatable = 1; |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1307 | int rc = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1308 | |
| 1309 | #ifdef DEBUG_PARSER |
| 1310 | printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); |
| 1311 | puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ |
| 1312 | puts ("\"\n"); |
| 1313 | #endif |
| 1314 | |
| 1315 | clear_ctrlc(); /* forget any previous Control C */ |
| 1316 | |
| 1317 | if (!cmd || !*cmd) { |
| 1318 | return -1; /* empty command */ |
| 1319 | } |
| 1320 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1321 | if (strlen(cmd) >= CONFIG_SYS_CBSIZE) { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1322 | puts ("## Command too long!\n"); |
| 1323 | return -1; |
| 1324 | } |
| 1325 | |
| 1326 | strcpy (cmdbuf, cmd); |
| 1327 | |
| 1328 | /* Process separators and check for invalid |
| 1329 | * repeatable commands |
| 1330 | */ |
| 1331 | |
| 1332 | #ifdef DEBUG_PARSER |
| 1333 | printf ("[PROCESS_SEPARATORS] %s\n", cmd); |
| 1334 | #endif |
| 1335 | while (*str) { |
| 1336 | |
| 1337 | /* |
| 1338 | * Find separator, or string end |
| 1339 | * Allow simple escape of ';' by writing "\;" |
| 1340 | */ |
wdenk | a25f862 | 2003-01-02 23:57:29 +0000 | [diff] [blame] | 1341 | for (inquotes = 0, sep = str; *sep; sep++) { |
| 1342 | if ((*sep=='\'') && |
| 1343 | (*(sep-1) != '\\')) |
| 1344 | inquotes=!inquotes; |
| 1345 | |
| 1346 | if (!inquotes && |
| 1347 | (*sep == ';') && /* separator */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1348 | ( sep != str) && /* past string start */ |
| 1349 | (*(sep-1) != '\\')) /* and NOT escaped */ |
| 1350 | break; |
| 1351 | } |
| 1352 | |
| 1353 | /* |
| 1354 | * Limit the token to data between separators |
| 1355 | */ |
| 1356 | token = str; |
| 1357 | if (*sep) { |
| 1358 | str = sep + 1; /* start of command for next pass */ |
| 1359 | *sep = '\0'; |
| 1360 | } |
| 1361 | else |
| 1362 | str = sep; /* no more commands for next pass */ |
| 1363 | #ifdef DEBUG_PARSER |
| 1364 | printf ("token: \"%s\"\n", token); |
| 1365 | #endif |
| 1366 | |
| 1367 | /* find macros in this token and replace them */ |
| 1368 | process_macros (token, finaltoken); |
| 1369 | |
| 1370 | /* Extract arguments */ |
Wolfgang Denk | 1264b40 | 2006-03-12 02:20:55 +0100 | [diff] [blame] | 1371 | if ((argc = parse_line (finaltoken, argv)) == 0) { |
| 1372 | rc = -1; /* no command at all */ |
| 1373 | continue; |
| 1374 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1375 | |
| 1376 | /* Look up command in command table */ |
| 1377 | if ((cmdtp = find_cmd(argv[0])) == NULL) { |
| 1378 | printf ("Unknown command '%s' - try 'help'\n", argv[0]); |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1379 | rc = -1; /* give up after bad command */ |
| 1380 | continue; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1381 | } |
| 1382 | |
| 1383 | /* found - check max args */ |
| 1384 | if (argc > cmdtp->maxargs) { |
Peter Tyser | 62c3ae7 | 2009-01-27 18:03:10 -0600 | [diff] [blame] | 1385 | cmd_usage(cmdtp); |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1386 | rc = -1; |
| 1387 | continue; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1388 | } |
| 1389 | |
Jon Loeliger | c3517f9 | 2007-07-08 18:10:08 -0500 | [diff] [blame] | 1390 | #if defined(CONFIG_CMD_BOOTD) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1391 | /* avoid "bootd" recursion */ |
| 1392 | if (cmdtp->cmd == do_bootd) { |
| 1393 | #ifdef DEBUG_PARSER |
| 1394 | printf ("[%s]\n", finaltoken); |
| 1395 | #endif |
| 1396 | if (flag & CMD_FLAG_BOOTD) { |
wdenk | 4b9206e | 2004-03-23 22:14:11 +0000 | [diff] [blame] | 1397 | puts ("'bootd' recursion detected\n"); |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1398 | rc = -1; |
| 1399 | continue; |
Wolfgang Denk | 1264b40 | 2006-03-12 02:20:55 +0100 | [diff] [blame] | 1400 | } else { |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1401 | flag |= CMD_FLAG_BOOTD; |
Wolfgang Denk | 1264b40 | 2006-03-12 02:20:55 +0100 | [diff] [blame] | 1402 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1403 | } |
Jon Loeliger | 9025317 | 2007-07-10 11:02:44 -0500 | [diff] [blame] | 1404 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1405 | |
| 1406 | /* OK - call function to do the command */ |
| 1407 | if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) { |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1408 | rc = -1; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1409 | } |
| 1410 | |
| 1411 | repeatable &= cmdtp->repeatable; |
| 1412 | |
| 1413 | /* Did the user stop this? */ |
| 1414 | if (had_ctrlc ()) |
Detlev Zundel | 5afb202 | 2007-05-23 18:47:48 +0200 | [diff] [blame] | 1415 | return -1; /* if stopped then not repeatable */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1416 | } |
| 1417 | |
wdenk | f07771c | 2003-05-28 08:06:31 +0000 | [diff] [blame] | 1418 | return rc ? rc : repeatable; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1419 | } |
| 1420 | |
| 1421 | /****************************************************************************/ |
| 1422 | |
Jon Loeliger | c3517f9 | 2007-07-08 18:10:08 -0500 | [diff] [blame] | 1423 | #if defined(CONFIG_CMD_RUN) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1424 | int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
| 1425 | { |
| 1426 | int i; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1427 | |
| 1428 | if (argc < 2) { |
Peter Tyser | 62c3ae7 | 2009-01-27 18:03:10 -0600 | [diff] [blame] | 1429 | cmd_usage(cmdtp); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1430 | return 1; |
| 1431 | } |
| 1432 | |
| 1433 | for (i=1; i<argc; ++i) { |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 1434 | char *arg; |
| 1435 | |
| 1436 | if ((arg = getenv (argv[i])) == NULL) { |
| 1437 | printf ("## Error: \"%s\" not defined\n", argv[i]); |
| 1438 | return 1; |
| 1439 | } |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1440 | #ifndef CONFIG_SYS_HUSH_PARSER |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 1441 | if (run_command (arg, flag) == -1) |
| 1442 | return 1; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1443 | #else |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 1444 | if (parse_string_outer(arg, |
wdenk | 7aa7861 | 2003-05-03 15:50:43 +0000 | [diff] [blame] | 1445 | FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0) |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 1446 | return 1; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1447 | #endif |
| 1448 | } |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 1449 | return 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 1450 | } |
Jon Loeliger | 9025317 | 2007-07-10 11:02:44 -0500 | [diff] [blame] | 1451 | #endif |