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_spi.h>
  50 #include <cmd_immap.h>
  51 #include <cmd_rtc.h>
  52
  53 #include <cmd_elf.h>
  54 #include <cmd_fdc.h>            /* Floppy support */
  55 #include <cmd_usb.h>            /* USB support */
  56 #include <cmd_scsi.h>
  57 #include <cmd_pci.h>
  58 #include <cmd_mii.h>
  59 #include <cmd_dcr.h>            /* 4xx DCR register access */
  60 #include <cmd_doc.h>
  61 #include <cmd_jffs2.h>
  62 #include <cmd_fpga.h>
  63
  64 #include <cmd_bsp.h>            /* board special functions */
  65
  66 #include <cmd_bedbug.h>
  67 #include <cmd_elf.h>
  68
  69 #include <cmd_dtt.h>
  70
  71 #include <cmd_vfd.h>            /* load a bitmap to the VFDs on TRAB */
  72 #include <cmd_log.h>
  73 #include <cmd_fdos.h>
  74
  75 /*
  76  * HELP command
  77  */
  78 #define CMD_TBL_HELP    MK_CMD_TBL_ENTRY(                                       \
  79         "help",         1,      CFG_MAXARGS,    1,      do_help,                \
  80         "help    - print online help\n",                                        \
  81         "[command ...]\n"                                                       \
  82         "    - show help information (for 'command')\n"                         \
  83         "'help' prints online help for the monitor commands.\n\n"               \
  84         "Without arguments, it prints a short usage message for all commands.\n\n" \
  85         "To get detailed help information for specific commands you can type\n" \
  86         "'help' with one or more command names as arguments.\n"                 \
  87     ),
  88
  89 #define CMD_TBL_QUES    MK_CMD_TBL_ENTRY(                                       \
  90         "?",            1,      CFG_MAXARGS,    1,      do_help,                \
  91         "?       - alias for 'help'\n",                                         \
  92         NULL                                                                    \
  93     ),
  94
  95 #define CMD_TBL_VERS    MK_CMD_TBL_ENTRY(                                       \
  96         "version",      4,      1,              1,      do_version,             \
  97         "version - print monitor version\n",                                    \
  98         NULL                                                                    \
  99     ),
 100
 101 #define CMD_TBL_ECHO    MK_CMD_TBL_ENTRY(                                       \
 102         "echo",         4,      CFG_MAXARGS,    1,      do_echo,                \
 103         "echo    - echo args to console\n",                                     \
 104         "[args..]\n"                                                            \
 105         "    - echo args to console; \\c suppresses newline\n"                  \
 106     ),
 107
 108 int
 109 do_version (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 110 {
 111         extern char version_string[];
 112         printf ("\n%s\n", version_string);
 113         return 0;
 114 }
 115
 116 int
 117 do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 118 {
 119         int i, putnl = 1;
 120
 121         for (i = 1; i < argc; i++) {
 122                 char *p = argv[i], c;
 123
 124                 if (i > 1)
 125                         putc(' ');
 126                 while ((c = *p++) != '\0')
 127                         if (c == '\\' && *p == 'c') {
 128                                 putnl = 0;
 129                                 p++;
 130                         }
 131                         else
 132                                 putc(c);
 133         }
 134
 135         if (putnl)
 136                 putc('\n');
 137         return 0;
 138 }
 139
 140 /*
 141  * Use puts() instead of printf() to avoid printf buffer overflow
 142  * for long help messages
 143  */
 144 int
 145 do_help (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 146 {
 147         int i;
 148         int rcode = 0;
 149
 150         if (argc == 1) {        /* print short help (usage) */
 151
 152                 for (cmdtp=&cmd_tbl[0]; cmdtp->name; cmdtp++) {
 153                         /* allow user abort */
 154                         if (ctrlc())
 155                                 return 1;
 156
 157                         if (cmdtp->usage == NULL)
 158                                 continue;
 159                         puts (cmdtp->usage);
 160                 }
 161
 162                 return 0;
 163         }
 164
 165         /*
 166          * command help (long version)
 167          */
 168         for (i=1; i<argc; ++i) {
 169                 if ((cmdtp = find_cmd(argv[i])) != NULL) {
 170 #ifdef  CFG_LONGHELP
 171                         /* found - print (long) help info */
 172                         puts (cmdtp->name);
 173                         putc (' ');
 174                         if (cmdtp->help) {
 175                                 puts (cmdtp->help);
 176                         } else {
 177                                 puts ("- No help available.\n");
 178                                 rcode = 1;
 179                         }
 180                         putc ('\n');
 181 #else   /* no long help available */
 182                         if (cmdtp->usage)
 183                                 puts (cmdtp->usage);
 184 #endif  /* CFG_LONGHELP */
 185                 }
 186                 else {
 187                         printf ("Unknown command '%s' - try 'help'"
 188                                 " without arguments for list of all"
 189                                 " known commands\n\n",
 190                                 argv[i]
 191                         );
 192                         rcode = 1;
 193                 }
 194         }
 195         return rcode;
 196 }
 197
 198 /***************************************************************************
 199  * find command table entry for a command
 200  */
 201 cmd_tbl_t *find_cmd(const char *cmd)
 202 {
 203         cmd_tbl_t *cmdtp;
 204
 205         /* Search command table - Use linear search - it's a small table */
 206         for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
 207                 if (strncmp (cmd, cmdtp->name, cmdtp->lmin) == 0)
 208                         return cmdtp;
 209         }
 210         return NULL;    /* not found */
 211 }
 212
 213 /*
 214  * The commands in this table are sorted alphabetically by the
 215  * command name and in descending order by the command name string
 216  * length. This is to prevent conflicts in command name parsing.
 217  * Please ensure that new commands are added according to that rule.
 218  * Please use $(TOPDIR)/doc/README.commands as a reference AND make
 219  * sure it gets updated.
 220  */
 221
 222 cmd_tbl_t cmd_tbl[] = {
 223         CMD_TBL_ASKENV
 224         CMD_TBL_ASM
 225         CMD_TBL_AUTOSCRIPT
 226         CMD_TBL_BASE
 227         CMD_TBL_BDINFO
 228         CMD_TBL_BOOTELF
 229         CMD_TBL_BOOTM
 230         CMD_TBL_BOOTP
 231         CMD_TBL_BOOTVX
 232         CMD_TBL_BOOTD
 233         CMD_TBL_BREAK
 234         CMD_TBL_BRGINFO
 235         CMD_TBL_CARINFO
 236         CMD_TBL_JFFS2_CHPART
 237         CMD_TBL_CMP
 238         CMD_TBL_CONINFO
 239         CMD_TBL_CONTINUE
 240         CMD_TBL_CP
 241         CMD_TBL_CRC
 242         CMD_TBL_DATE
 243         CMD_TBL_DCACHE
 244         CMD_TBL_DHCP
 245         CMD_TBL_DIAG
 246         CMD_TBL_DISK
 247         CMD_TBL_DMAINFO
 248         CMD_TBL_DIS
 249         CMD_TBL_DOCBOOT
 250         CMD_TBL_DOC
 251         CMD_TBL_DTT
 252         CMD_TBL_ECHO
 253         CMD_TBL_EEPROM
 254         CMD_TBL_FCCINFO
 255         CMD_TBL_FLERASE
 256         CMD_TBL_FDC
 257         CMD_TBL_FDOS_BOOT
 258         CMD_TBL_FDOS_LS
 259         CMD_TBL_FLINFO
 260         CMD_TBL_FPGA
 261         CMD_TBL_JFFS2_FSINFO
 262         CMD_TBL_JFFS2_FSLOAD
 263         CMD_TBL_GETDCR
 264         CMD_TBL_GO
 265         CMD_TBL_HELP
 266         CMD_TBL_HWFLOW
 267         CMD_TBL_I2CINFO
 268         CMD_TBL_ICACHE
 269 #ifdef CONFIG_8260
 270         CMD_TBL_ICINFO
 271 #endif
 272         CMD_TBL_IMD
 273         CMD_TBL_IMM
 274         CMD_TBL_INM
 275         CMD_TBL_IMW
 276         CMD_TBL_ICRC
 277         CMD_TBL_IPROBE
 278         CMD_TBL_ILOOP
 279         CMD_TBL_ISDRAM
 280         CMD_TBL_IDE
 281         CMD_TBL_IMINFO
 282         CMD_TBL_IOPINFO
 283         CMD_TBL_IOPSET
 284         CMD_TBL_IRQINFO
 285         CMD_TBL_KGDB
 286         CMD_TBL_LOADB
 287         CMD_TBL_LOADS
 288         CMD_TBL_LOG
 289         CMD_TBL_LOOP
 290         CMD_TBL_JFFS2_LS
 291         CMD_TBL_MCCINFO
 292         CMD_TBL_MD
 293         CMD_TBL_MEMCINFO
 294         CMD_TBL_MII
 295         CMD_TBL_MM
 296         CMD_TBL_MTEST
 297         CMD_TBL_MUXINFO
 298         CMD_TBL_MW
 299         CMD_TBL_NEXT
 300         CMD_TBL_NM
 301         CMD_TBL_PCI
 302         CMD_TBL_PRINTENV
 303         CMD_TBL_PROTECT
 304         CMD_TBL_RARPB
 305         CMD_TBL_RDUMP
 306         CMD_TBL_PINIT
 307         CMD_TBL_REGINFO
 308         CMD_TBL_RESET
 309         CMD_TBL_RUN
 310         CMD_TBL_SAVEENV
 311         CMD_TBL_SAVES
 312         CMD_TBL_SCCINFO
 313         CMD_TBL_SCSIBOOT
 314         CMD_TBL_SCSI
 315         CMD_TBL_SETDCR
 316         CMD_TBL_SETENV
 317         CMD_TBL_SIINFO
 318         CMD_TBL_SITINFO
 319         CMD_TBL_SIUINFO
 320         CMD_TBL_MISC            /* sleep */
 321         CMD_TBL_SMCINFO
 322         CMD_TBL_SPIINFO
 323         CMD_TBL_SPI
 324         CMD_TBL_STACK
 325         CMD_TBL_STEP
 326         CMD_TBL_TFTPB
 327         CMD_TBL_USBBOOT
 328         CMD_TBL_USB
 329         CMD_TBL_VERS
 330         CMD_TBL_BSP
 331         CMD_TBL_VFD
 332         CMD_TBL_QUES            /* keep this ("help") the last entry */
 333         /* the following entry terminates this table */
 334         MK_CMD_TBL_ENTRY( NULL, 0, 0, 0, NULL, NULL, NULL )
 335 };