common/command.c

   1 /*
   2  * (C) Copyright 2000
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  *  Command Processor Table
  26  */
  27
  28 #include <common.h>
  29 #include <command.h>
  30 #include <cmd_cache.h>
  31 #include <cmd_mem.h>
  32 #include <cmd_boot.h>
  33 #include <cmd_flash.h>
  34 #include <cmd_bootm.h>
  35 #include <cmd_net.h>
  36 #include <cmd_nvedit.h>
  37 #include <cmd_misc.h>
  38 #include <cmd_kgdb.h>
  39 #include <cmd_ide.h>
  40 #include <cmd_disk.h>
  41 #include <cmd_console.h>
  42 #include <cmd_reginfo.h>
  43 #include <cmd_pcmcia.h>
  44 #include <cmd_autoscript.h>
  45 #include <cmd_diag.h>
  46
  47 #include <cmd_eeprom.h>
  48 #include <cmd_i2c.h>
  49 #include <cmd_immap.h>
  50 #include <cmd_rtc.h>
  51
  52 #include <cmd_elf.h>
  53 #include <cmd_fdc.h>            /* Floppy support */
  54 #include <cmd_usb.h>            /* USB support */
  55 #include <cmd_scsi.h>
  56 #include <cmd_pci.h>
  57 #include <cmd_mii.h>
  58 #include <cmd_dcr.h>            /* 4xx DCR register access */
  59 #include <cmd_doc.h>
  60 #include <cmd_jffs2.h>
  61 #include <cmd_fpga.h>
  62
  63 #include <cmd_bsp.h>            /* board special functions */
  64
  65 #include <cmd_bedbug.h>
  66 #include <cmd_elf.h>
  67
  68 #include <cmd_dtt.h>
  69
  70 #include <cmd_vfd.h>            /* load a bitmap to the VFDs on TRAB */
  71 #include <cmd_log.h>
  72
  73 /*
  74  * HELP command
  75  */
  76 #define CMD_TBL_HELP    MK_CMD_TBL_ENTRY(                                       \
  77         "help",         1,      CFG_MAXARGS,    1,      do_help,                \
  78         "help    - print online help\n",                                        \
  79         "[command ...]\n"                                                       \
  80         "    - show help information (for 'command')\n"                         \
  81         "'help' prints online help for the monitor commands.\n\n"               \
  82         "Without arguments, it prints a short usage message for all commands.\n\n" \
  83         "To get detailed help information for specific commands you can type\n" \
  84         "'help' with one or more command names as arguments.\n"                 \
  85     ),
  86
  87 #define CMD_TBL_QUES    MK_CMD_TBL_ENTRY(                                       \
  88         "?",            1,      CFG_MAXARGS,    1,      do_help,                \
  89         "?       - alias for 'help'\n",                                         \
  90         NULL                                                                    \
  91     ),
  92
  93 #define CMD_TBL_VERS    MK_CMD_TBL_ENTRY(                                       \
  94         "version",      4,      1,              1,      do_version,             \
  95         "version - print monitor version\n",                                    \
  96         NULL                                                                    \
  97     ),
  98
  99 #define CMD_TBL_ECHO    MK_CMD_TBL_ENTRY(                                       \
 100         "echo",         4,      CFG_MAXARGS,    1,      do_echo,                \
 101         "echo    - echo args to console\n",                                     \
 102         "[args..]\n"                                                            \
 103         "    - echo args to console; \\c suppresses newline\n"                  \
 104     ),
 105
 106 int
 107 do_version (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 108 {
 109         extern char version_string[];
 110         printf ("\n%s\n", version_string);
 111         return 0;
 112 }
 113
 114 int
 115 do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 116 {
 117         int i, putnl = 1;
 118
 119         for (i = 1; i < argc; i++) {
 120                 char *p = argv[i], c;
 121
 122                 if (i > 1)
 123                         putc(' ');
 124                 while ((c = *p++) != '\0')
 125                         if (c == '\\' && *p == 'c') {
 126                                 putnl = 0;
 127                                 p++;
 128                         }
 129                         else
 130                                 putc(c);
 131         }
 132
 133         if (putnl)
 134                 putc('\n');
 135         return 0;
 136 }
 137
 138 /*
 139  * Use puts() instead of printf() to avoid printf buffer overflow
 140  * for long help messages
 141  */
 142 int
 143 do_help (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 144 {
 145         int i;
 146         int rcode = 0;
 147
 148         if (argc == 1) {        /* print short help (usage) */
 149
 150                 for (cmdtp=&cmd_tbl[0]; cmdtp->name; cmdtp++) {
 151                         /* allow user abort */
 152                         if (ctrlc())
 153                                 return 1;
 154
 155                         if (cmdtp->usage == NULL)
 156                                 continue;
 157                         puts (cmdtp->usage);
 158                 }
 159
 160                 return 0;
 161         }
 162
 163         /*
 164          * command help (long version)
 165          */
 166         for (i=1; i<argc; ++i) {
 167                 if ((cmdtp = find_cmd(argv[i])) != NULL) {
 168 #ifdef  CFG_LONGHELP
 169                         /* found - print (long) help info */
 170                         puts (cmdtp->name);
 171                         putc (' ');
 172                         if (cmdtp->help) {
 173                                 puts (cmdtp->help);
 174                         } else {
 175                                 puts ("- No help available.\n");
 176                                 rcode = 1;
 177                         }
 178                         putc ('\n');
 179 #else   /* no long help available */
 180                         if (cmdtp->usage)
 181                                 puts (cmdtp->usage);
 182 #endif  /* CFG_LONGHELP */
 183                 }
 184                 else {
 185                         printf ("Unknown command '%s' - try 'help'"
 186                                 " without arguments for list of all"
 187                                 " known commands\n\n",
 188                                 argv[i]
 189                         );
 190                         rcode = 1;
 191                 }
 192         }
 193         return rcode;
 194 }
 195
 196 /***************************************************************************
 197  * find command table entry for a command
 198  */
 199 cmd_tbl_t *find_cmd(const char *cmd)
 200 {
 201         cmd_tbl_t *cmdtp;
 202
 203         /* Search command table - Use linear search - it's a small table */
 204         for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
 205                 if (strncmp (cmd, cmdtp->name, cmdtp->lmin) == 0)
 206                         return cmdtp;
 207         }
 208         return NULL;    /* not found */
 209 }
 210
 211 /*
 212  * The commands in this table are sorted alphabetically by the
 213  * command name and in descending order by the command name string
 214  * length. This is to prevent conflicts in command name parsing.
 215  * Please ensure that new commands are added according to that rule.
 216  * Please use $(TOPDIR)/doc/README.commands as a reference AND make
 217  * sure it gets updated.
 218  */
 219
 220 cmd_tbl_t cmd_tbl[] = {
 221         CMD_TBL_ASKENV
 222         CMD_TBL_ASM
 223         CMD_TBL_AUTOSCRIPT
 224         CMD_TBL_BASE
 225         CMD_TBL_BDINFO
 226         CMD_TBL_BOOTELF
 227         CMD_TBL_BOOTM
 228         CMD_TBL_BOOTP
 229         CMD_TBL_BOOTVX
 230         CMD_TBL_BOOTD
 231         CMD_TBL_BREAK
 232         CMD_TBL_BRGINFO
 233         CMD_TBL_CARINFO
 234         CMD_TBL_JFFS2_CHPART
 235         CMD_TBL_CMP
 236         CMD_TBL_CONINFO
 237         CMD_TBL_CONTINUE
 238         CMD_TBL_CP
 239         CMD_TBL_CRC
 240         CMD_TBL_DATE
 241         CMD_TBL_DCACHE
 242         CMD_TBL_DHCP
 243         CMD_TBL_DIAG
 244         CMD_TBL_DISK
 245         CMD_TBL_DMAINFO
 246         CMD_TBL_DIS
 247         CMD_TBL_DOCBOOT
 248         CMD_TBL_DOC
 249         CMD_TBL_DTT
 250         CMD_TBL_ECHO
 251         CMD_TBL_EEPROM
 252         CMD_TBL_FCCINFO
 253         CMD_TBL_FLERASE
 254         CMD_TBL_FDC
 255         CMD_TBL_FLINFO
 256         CMD_TBL_FPGA
 257         CMD_TBL_JFFS2_FSINFO
 258         CMD_TBL_JFFS2_FSLOAD
 259         CMD_TBL_GETDCR
 260         CMD_TBL_GO
 261         CMD_TBL_HELP
 262         CMD_TBL_HWFLOW
 263         CMD_TBL_I2CINFO
 264         CMD_TBL_ICACHE
 265 #ifdef CONFIG_8260
 266         CMD_TBL_ICINFO
 267 #endif
 268         CMD_TBL_IMD
 269         CMD_TBL_IMM
 270         CMD_TBL_INM
 271         CMD_TBL_IMW
 272         CMD_TBL_ICRC
 273         CMD_TBL_IPROBE
 274         CMD_TBL_ILOOP
 275         CMD_TBL_ISDRAM
 276         CMD_TBL_IDE
 277         CMD_TBL_IMINFO
 278         CMD_TBL_IOPINFO
 279         CMD_TBL_IOPSET
 280         CMD_TBL_IRQINFO
 281         CMD_TBL_KGDB
 282         CMD_TBL_LOADB
 283         CMD_TBL_LOADS
 284         CMD_TBL_LOG
 285         CMD_TBL_LOOP
 286         CMD_TBL_JFFS2_LS
 287         CMD_TBL_MCCINFO
 288         CMD_TBL_MD
 289         CMD_TBL_MEMCINFO
 290         CMD_TBL_MII
 291         CMD_TBL_MM
 292         CMD_TBL_MTEST
 293         CMD_TBL_MUXINFO
 294         CMD_TBL_MW
 295         CMD_TBL_NEXT
 296         CMD_TBL_NM
 297         CMD_TBL_PCI
 298         CMD_TBL_PRINTENV
 299         CMD_TBL_PROTECT
 300         CMD_TBL_RARPB
 301         CMD_TBL_RDUMP
 302         CMD_TBL_PINIT
 303         CMD_TBL_REGINFO
 304         CMD_TBL_RESET
 305         CMD_TBL_RUN
 306         CMD_TBL_SAVEENV
 307         CMD_TBL_SAVES
 308         CMD_TBL_SCCINFO
 309         CMD_TBL_SCSIBOOT
 310         CMD_TBL_SCSI
 311         CMD_TBL_SETDCR
 312         CMD_TBL_SETENV
 313         CMD_TBL_SIINFO
 314         CMD_TBL_SITINFO
 315         CMD_TBL_SIUINFO
 316         CMD_TBL_MISC            /* sleep */
 317         CMD_TBL_SMCINFO
 318         CMD_TBL_SPIINFO
 319         CMD_TBL_STACK
 320         CMD_TBL_STEP
 321         CMD_TBL_TFTPB
 322         CMD_TBL_USBBOOT
 323         CMD_TBL_USB
 324         CMD_TBL_VERS
 325         CMD_TBL_BSP
 326         CMD_TBL_VFD
 327         CMD_TBL_QUES            /* keep this ("help") the last entry */
 328         /* the following entry terminates this table */
 329         MK_CMD_TBL_ENTRY( NULL, 0, 0, 0, NULL, NULL, NULL )
 330 };