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