]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - common/command.c
arm: fixloop(): do not use r8 for relocation
[karo-tx-uboot.git] / common / command.c
index f70cad8cbc16c7a72d116b51a110dcaf55c4a918..0b1a3fbf9b18a15a8212252a8e0c54254321b027 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2009
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
 
 #include <common.h>
 #include <command.h>
-#include <cmd_cache.h>
-#include <cmd_mem.h>
-#include <cmd_boot.h>
-#include <cmd_flash.h>
-#include <cmd_bootm.h>
-#include <cmd_net.h>
-#include <cmd_nvedit.h>
-#include <cmd_misc.h>
-#include <cmd_kgdb.h>
-#include <cmd_ide.h>
-#include <cmd_disk.h>
-#include <cmd_console.h>
-#include <cmd_reginfo.h>
-#include <cmd_pcmcia.h>
-#include <cmd_autoscript.h>
-#include <cmd_diag.h>
-
-#include <cmd_eeprom.h>
-#include <cmd_i2c.h>
-#include <cmd_spi.h>
-#include <cmd_immap.h>
-#include <cmd_rtc.h>
-
-#include <cmd_elf.h>
-#include <cmd_fdc.h>           /* Floppy support */
-#include <cmd_usb.h>           /* USB support */
-#include <cmd_scsi.h>
-#include <cmd_pci.h>
-#include <cmd_mii.h>
-#include <cmd_dcr.h>           /* 4xx DCR register access */
-#include <cmd_doc.h>
-#include <cmd_jffs2.h>
-#include <cmd_fpga.h>
-
-#include <cmd_bsp.h>           /* board special functions */
-
-#include <cmd_bedbug.h>
-#include <cmd_elf.h>
-
-#include <cmd_dtt.h>
-
-#include <cmd_vfd.h>           /* load a bitmap to the VFDs on TRAB */
-#include <cmd_log.h>
-
-/*
- * HELP command
- */
-#define        CMD_TBL_HELP    MK_CMD_TBL_ENTRY(                                       \
-       "help",         1,      CFG_MAXARGS,    1,      do_help,                \
-       "help    - print online help\n",                                        \
-       "[command ...]\n"                                                       \
-       "    - show help information (for 'command')\n"                         \
-       "'help' prints online help for the monitor commands.\n\n"               \
-       "Without arguments, it prints a short usage message for all commands.\n\n" \
-       "To get detailed help information for specific commands you can type\n" \
-       "'help' with one or more command names as arguments.\n"                 \
-    ),
-
-#define        CMD_TBL_QUES    MK_CMD_TBL_ENTRY(                                       \
-       "?",            1,      CFG_MAXARGS,    1,      do_help,                \
-       "?       - alias for 'help'\n",                                         \
-       NULL                                                                    \
-    ),
-
-#define CMD_TBL_VERS   MK_CMD_TBL_ENTRY(                                       \
-       "version",      4,      1,              1,      do_version,             \
-       "version - print monitor version\n",                                    \
-       NULL                                                                    \
-    ),
-
-#define CMD_TBL_ECHO   MK_CMD_TBL_ENTRY(                                       \
-       "echo",         4,      CFG_MAXARGS,    1,      do_echo,                \
-       "echo    - echo args to console\n",                                     \
-       "[args..]\n"                                                            \
-       "    - echo args to console; \\c suppresses newline\n"                  \
-    ),
-
-int
-do_version (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-       extern char version_string[];
-       printf ("\n%s\n", version_string);
-       return 0;
-}
-
-int
-do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
-       int i, putnl = 1;
-
-       for (i = 1; i < argc; i++) {
-               char *p = argv[i], c;
-
-               if (i > 1)
-                       putc(' ');
-               while ((c = *p++) != '\0')
-                       if (c == '\\' && *p == 'c') {
-                               putnl = 0;
-                               p++;
-                       }
-                       else
-                               putc(c);
-       }
-
-       if (putnl)
-               putc('\n');
-       return 0;
-}
 
 /*
  * Use puts() instead of printf() to avoid printf buffer overflow
  * for long help messages
  */
-int
-do_help (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+
+int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
+             flag, int argc, char * const argv[])
 {
        int i;
        int rcode = 0;
 
-       if (argc == 1) {        /* print short help (usage) */
+       if (argc == 1) {        /*show list of commands */
+               cmd_tbl_t *cmd_array[cmd_items];
+               int i, j, swaps;
+
+               /* Make array of commands from .uboot_cmd section */
+               cmdtp = cmd_start;
+               for (i = 0; i < cmd_items; i++) {
+                       cmd_array[i] = cmdtp++;
+               }
+
+               /* Sort command list (trivial bubble sort) */
+               for (i = cmd_items - 1; i > 0; --i) {
+                       swaps = 0;
+                       for (j = 0; j < i; ++j) {
+                               if (strcmp (cmd_array[j]->name,
+                                           cmd_array[j + 1]->name) > 0) {
+                                       cmd_tbl_t *tmp;
+                                       tmp = cmd_array[j];
+                                       cmd_array[j] = cmd_array[j + 1];
+                                       cmd_array[j + 1] = tmp;
+                                       ++swaps;
+                               }
+                       }
+                       if (!swaps)
+                               break;
+               }
+
+               /* print short help (usage) */
+               for (i = 0; i < cmd_items; i++) {
+                       const char *usage = cmd_array[i]->usage;
 
-               for (cmdtp=&cmd_tbl[0]; cmdtp->name; cmdtp++) {
                        /* allow user abort */
-                       if (ctrlc())
+                       if (ctrlc ())
                                return 1;
-
-                       if (cmdtp->usage == NULL)
+                       if (usage == NULL)
                                continue;
-                       puts (cmdtp->usage);
+                       printf("%-*s- %s\n", CONFIG_SYS_HELP_CMD_WIDTH,
+                              cmd_array[i]->name, usage);
                }
-
                return 0;
        }
-
        /*
         * command help (long version)
         */
-       for (i=1; i<argc; ++i) {
-               if ((cmdtp = find_cmd(argv[i])) != NULL) {
-#ifdef CFG_LONGHELP
-                       /* found - print (long) help info */
-                       puts (cmdtp->name);
-                       putc (' ');
-                       if (cmdtp->help) {
-                               puts (cmdtp->help);
-                       } else {
-                               puts ("- No help available.\n");
-                               rcode = 1;
-                       }
-                       putc ('\n');
-#else  /* no long help available */
-                       if (cmdtp->usage)
-                               puts (cmdtp->usage);
-#endif /* CFG_LONGHELP */
-               }
-               else {
+       for (i = 1; i < argc; ++i) {
+               if ((cmdtp = find_cmd_tbl (argv[i], cmd_start, cmd_items )) != NULL) {
+                       rcode |= cmd_usage(cmdtp);
+               } else {
                        printf ("Unknown command '%s' - try 'help'"
                                " without arguments for list of all"
-                               " known commands\n\n",
-                               argv[i]
-                       );
+                               " known commands\n\n", argv[i]
+                                       );
                        rcode = 1;
                }
        }
@@ -197,136 +100,407 @@ do_help (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 /***************************************************************************
  * find command table entry for a command
  */
-cmd_tbl_t *find_cmd(const char *cmd)
+cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len)
 {
        cmd_tbl_t *cmdtp;
+       cmd_tbl_t *cmdtp_temp = table;  /*Init value */
+       const char *p;
+       int len;
+       int n_found = 0;
+
+       if (!cmd)
+               return NULL;
+       /*
+        * Some commands allow length modifiers (like "cp.b");
+        * compare command name only until first dot.
+        */
+       len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd);
 
-       /* Search command table - Use linear search - it's a small table */
-       for (cmdtp = &cmd_tbl[0]; cmdtp->name; cmdtp++) {
-               if (strncmp (cmd, cmdtp->name, cmdtp->lmin) == 0)
-                       return cmdtp;
+       for (cmdtp = table;
+            cmdtp != table + table_len;
+            cmdtp++) {
+               if (strncmp (cmd, cmdtp->name, len) == 0) {
+                       if (len == strlen (cmdtp->name))
+                               return cmdtp;   /* full match */
+
+                       cmdtp_temp = cmdtp;     /* abbreviated command ? */
+                       n_found++;
+               }
+       }
+       if (n_found == 1) {                     /* exactly one match */
+               return cmdtp_temp;
        }
-       return NULL;    /* not found */
+
+       return NULL;    /* not found or ambiguous command */
 }
 
-/*
- * The commands in this table are sorted alphabetically by the
- * command name and in descending order by the command name string
- * length. This is to prevent conflicts in command name parsing.
- * Please ensure that new commands are added according to that rule.
- * Please use $(TOPDIR)/doc/README.commands as a reference AND make
- * sure it gets updated.
- */
+cmd_tbl_t *find_cmd (const char *cmd)
+{
+       int len = &__u_boot_cmd_end - &__u_boot_cmd_start;
+       return find_cmd_tbl(cmd, &__u_boot_cmd_start, len);
+}
+
+int cmd_usage(cmd_tbl_t *cmdtp)
+{
+       printf("%s - %s\n\n", cmdtp->name, cmdtp->usage);
+
+#ifdef CONFIG_SYS_LONGHELP
+       printf("Usage:\n%s ", cmdtp->name);
+
+       if (!cmdtp->help) {
+               puts ("- No additional help available.\n");
+               return 1;
+       }
+
+       puts (cmdtp->help);
+       putc ('\n');
+#endif /* CONFIG_SYS_LONGHELP */
+       return 1;
+}
+
+#ifdef CONFIG_AUTO_COMPLETE
+
+int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
+{
+#if 0 /* need to reimplement */
+       static char tmp_buf[512];
+       int space;
+
+       space = last_char == '\0' || last_char == ' ' || last_char == '\t';
+
+       if (space && argc == 1)
+               return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf);
+
+       if (!space && argc == 2)
+               return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf);
+#endif
+       return 0;
+}
+
+static void install_auto_complete_handler(const char *cmd,
+               int (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]))
+{
+       cmd_tbl_t *cmdtp;
+
+       cmdtp = find_cmd(cmd);
+       if (cmdtp == NULL)
+               return;
+
+       cmdtp->complete = complete;
+}
+
+void install_auto_complete(void)
+{
+#if defined(CONFIG_CMD_EDITENV)
+       install_auto_complete_handler("editenv", var_complete);
+#endif
+       install_auto_complete_handler("printenv", var_complete);
+       install_auto_complete_handler("setenv", var_complete);
+#if defined(CONFIG_CMD_RUN)
+       install_auto_complete_handler("run", var_complete);
+#endif
+}
+
+/*************************************************************************************/
+
+static int complete_cmdv(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
+{
+       cmd_tbl_t *cmdtp;
+       const char *p;
+       int len, clen;
+       int n_found = 0;
+       const char *cmd;
+
+       /* sanity? */
+       if (maxv < 2)
+               return -2;
+
+       cmdv[0] = NULL;
+
+       if (argc == 0) {
+               /* output full list of commands */
+               for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
+                       if (n_found >= maxv - 2) {
+                               cmdv[n_found++] = "...";
+                               break;
+                       }
+                       cmdv[n_found++] = cmdtp->name;
+               }
+               cmdv[n_found] = NULL;
+               return n_found;
+       }
+
+       /* more than one arg or one but the start of the next */
+       if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) {
+               cmdtp = find_cmd(argv[0]);
+               if (cmdtp == NULL || cmdtp->complete == NULL) {
+                       cmdv[0] = NULL;
+                       return 0;
+               }
+               return (*cmdtp->complete)(argc, argv, last_char, maxv, cmdv);
+       }
 
-cmd_tbl_t cmd_tbl[] = {
-       CMD_TBL_ASKENV
-       CMD_TBL_ASM
-       CMD_TBL_AUTOSCRIPT
-       CMD_TBL_BASE
-       CMD_TBL_BDINFO
-       CMD_TBL_BOOTELF
-       CMD_TBL_BOOTM
-       CMD_TBL_BOOTP
-       CMD_TBL_BOOTVX
-       CMD_TBL_BOOTD
-       CMD_TBL_BREAK
-       CMD_TBL_BRGINFO
-       CMD_TBL_CARINFO
-       CMD_TBL_JFFS2_CHPART
-       CMD_TBL_CMP
-       CMD_TBL_CONINFO
-       CMD_TBL_CONTINUE
-       CMD_TBL_CP
-       CMD_TBL_CRC
-       CMD_TBL_DATE
-       CMD_TBL_DCACHE
-       CMD_TBL_DHCP
-       CMD_TBL_DIAG
-       CMD_TBL_DISK
-       CMD_TBL_DMAINFO
-       CMD_TBL_DIS
-       CMD_TBL_DOCBOOT
-       CMD_TBL_DOC
-       CMD_TBL_DTT
-       CMD_TBL_ECHO
-       CMD_TBL_EEPROM
-       CMD_TBL_FCCINFO
-       CMD_TBL_FLERASE
-       CMD_TBL_FDC
-       CMD_TBL_FLINFO
-       CMD_TBL_FPGA
-       CMD_TBL_JFFS2_FSINFO
-       CMD_TBL_JFFS2_FSLOAD
-       CMD_TBL_GETDCR
-       CMD_TBL_GO
-       CMD_TBL_HELP
-       CMD_TBL_HWFLOW
-       CMD_TBL_I2CINFO
-       CMD_TBL_ICACHE
-#ifdef CONFIG_8260
-       CMD_TBL_ICINFO
+       cmd = argv[0];
+       /*
+        * Some commands allow length modifiers (like "cp.b");
+        * compare command name only until first dot.
+        */
+       p = strchr(cmd, '.');
+       if (p == NULL)
+               len = strlen(cmd);
+       else
+               len = p - cmd;
+
+       /* return the partial matches */
+       for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
+
+               clen = strlen(cmdtp->name);
+               if (clen < len)
+                       continue;
+
+               if (memcmp(cmd, cmdtp->name, len) != 0)
+                       continue;
+
+               /* too many! */
+               if (n_found >= maxv - 2) {
+                       cmdv[n_found++] = "...";
+                       break;
+               }
+
+               cmdv[n_found++] = cmdtp->name;
+       }
+
+       cmdv[n_found] = NULL;
+       return n_found;
+}
+
+static int make_argv(char *s, int argvsz, char *argv[])
+{
+       int argc = 0;
+
+       /* split into argv */
+       while (argc < argvsz - 1) {
+
+               /* skip any white space */
+               while ((*s == ' ') || (*s == '\t'))
+                       ++s;
+
+               if (*s == '\0') /* end of s, no more args       */
+                       break;
+
+               argv[argc++] = s;       /* begin of argument string     */
+
+               /* find end of string */
+               while (*s && (*s != ' ') && (*s != '\t'))
+                       ++s;
+
+               if (*s == '\0')         /* end of s, no more args       */
+                       break;
+
+               *s++ = '\0';            /* terminate current arg         */
+       }
+       argv[argc] = NULL;
+
+       return argc;
+}
+
+static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char * const argv[])
+{
+       int ll = leader != NULL ? strlen(leader) : 0;
+       int sl = sep != NULL ? strlen(sep) : 0;
+       int len, i;
+
+       if (banner) {
+               puts("\n");
+               puts(banner);
+       }
+
+       i = linemax;    /* force leader and newline */
+       while (*argv != NULL) {
+               len = strlen(*argv) + sl;
+               if (i + len >= linemax) {
+                       puts("\n");
+                       if (leader)
+                               puts(leader);
+                       i = ll - sl;
+               } else if (sep)
+                       puts(sep);
+               puts(*argv++);
+               i += len;
+       }
+       printf("\n");
+}
+
+static int find_common_prefix(char * const argv[])
+{
+       int i, len;
+       char *anchor, *s, *t;
+
+       if (*argv == NULL)
+               return 0;
+
+       /* begin with max */
+       anchor = *argv++;
+       len = strlen(anchor);
+       while ((t = *argv++) != NULL) {
+               s = anchor;
+               for (i = 0; i < len; i++, t++, s++) {
+                       if (*t != *s)
+                               break;
+               }
+               len = s - anchor;
+       }
+       return len;
+}
+
+static char tmp_buf[CONFIG_SYS_CBSIZE];        /* copy of console I/O buffer   */
+
+int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp)
+{
+       int n = *np, col = *colp;
+       char *argv[CONFIG_SYS_MAXARGS + 1];             /* NULL terminated      */
+       char *cmdv[20];
+       char *s, *t;
+       const char *sep;
+       int i, j, k, len, seplen, argc;
+       int cnt;
+       char last_char;
+
+       if (strcmp(prompt, CONFIG_SYS_PROMPT) != 0)
+               return 0;       /* not in normal console */
+
+       cnt = strlen(buf);
+       if (cnt >= 1)
+               last_char = buf[cnt - 1];
+       else
+               last_char = '\0';
+
+       /* copy to secondary buffer which will be affected */
+       strcpy(tmp_buf, buf);
+
+       /* separate into argv */
+       argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv);
+
+       /* do the completion and return the possible completions */
+       i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv);
+
+       /* no match; bell and out */
+       if (i == 0) {
+               if (argc > 1)   /* allow tab for non command */
+                       return 0;
+               putc('\a');
+               return 1;
+       }
+
+       s = NULL;
+       len = 0;
+       sep = NULL;
+       seplen = 0;
+       if (i == 1) { /* one match; perfect */
+               k = strlen(argv[argc - 1]);
+               s = cmdv[0] + k;
+               len = strlen(s);
+               sep = " ";
+               seplen = 1;
+       } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) {      /* more */
+               k = strlen(argv[argc - 1]);
+               j -= k;
+               if (j > 0) {
+                       s = cmdv[0] + k;
+                       len = j;
+               }
+       }
+
+       if (s != NULL) {
+               k = len + seplen;
+               /* make sure it fits */
+               if (n + k >= CONFIG_SYS_CBSIZE - 2) {
+                       putc('\a');
+                       return 1;
+               }
+
+               t = buf + cnt;
+               for (i = 0; i < len; i++)
+                       *t++ = *s++;
+               if (sep != NULL)
+                       for (i = 0; i < seplen; i++)
+                               *t++ = sep[i];
+               *t = '\0';
+               n += k;
+               col += k;
+               puts(t - k);
+               if (sep == NULL)
+                       putc('\a');
+               *np = n;
+               *colp = col;
+       } else {
+               print_argv(NULL, "  ", " ", 78, cmdv);
+
+               puts(prompt);
+               puts(buf);
+       }
+       return 1;
+}
+
+#endif
+
+#ifdef CMD_DATA_SIZE
+int cmd_get_data_size(char* arg, int default_size)
+{
+       /* Check for a size specification .b, .w or .l.
+        */
+       int len = strlen(arg);
+       if (len > 2 && arg[len-2] == '.') {
+               switch(arg[len-1]) {
+               case 'b':
+                       return 1;
+               case 'w':
+                       return 2;
+               case 'l':
+                       return 4;
+               case 's':
+                       return -2;
+               default:
+                       return -1;
+               }
+       }
+       return default_size;
+}
+#endif
+
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+DECLARE_GLOBAL_DATA_PTR;
+
+void fixup_cmdtable(cmd_tbl_t *cmdtp, int size)
+{
+       int     i;
+
+       if (gd->reloc_off == 0)
+               return;
+
+       for (i = 0; i < size; i++) {
+               ulong addr;
+
+               addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
+#if DEBUG_COMMANDS
+               printf("Command \"%s\": 0x%08lx => 0x%08lx\n",
+                      cmdtp->name, (ulong) (cmdtp->cmd), addr);
+#endif
+               cmdtp->cmd =
+                       (int (*)(struct cmd_tbl_s *, int, int, char * const []))addr;
+               addr = (ulong)(cmdtp->name) + gd->reloc_off;
+               cmdtp->name = (char *)addr;
+               if (cmdtp->usage) {
+                       addr = (ulong)(cmdtp->usage) + gd->reloc_off;
+                       cmdtp->usage = (char *)addr;
+               }
+#ifdef CONFIG_SYS_LONGHELP
+               if (cmdtp->help) {
+                       addr = (ulong)(cmdtp->help) + gd->reloc_off;
+                       cmdtp->help = (char *)addr;
+               }
+#endif
+               cmdtp++;
+       }
+}
 #endif
-       CMD_TBL_IMD
-       CMD_TBL_IMM
-       CMD_TBL_INM
-       CMD_TBL_IMW
-       CMD_TBL_ICRC
-       CMD_TBL_IPROBE
-       CMD_TBL_ILOOP
-       CMD_TBL_ISDRAM
-       CMD_TBL_IDE
-       CMD_TBL_IMINFO
-       CMD_TBL_IOPINFO
-       CMD_TBL_IOPSET
-       CMD_TBL_IRQINFO
-       CMD_TBL_KGDB
-       CMD_TBL_LOADB
-       CMD_TBL_LOADS
-       CMD_TBL_LOG
-       CMD_TBL_LOOP
-       CMD_TBL_JFFS2_LS
-       CMD_TBL_MCCINFO
-       CMD_TBL_MD
-       CMD_TBL_MEMCINFO
-       CMD_TBL_MII
-       CMD_TBL_MM
-       CMD_TBL_MTEST
-       CMD_TBL_MUXINFO
-       CMD_TBL_MW
-       CMD_TBL_NEXT
-       CMD_TBL_NM
-       CMD_TBL_PCI
-       CMD_TBL_PRINTENV
-       CMD_TBL_PROTECT
-       CMD_TBL_RARPB
-       CMD_TBL_RDUMP
-       CMD_TBL_PINIT
-       CMD_TBL_REGINFO
-       CMD_TBL_RESET
-       CMD_TBL_RUN
-       CMD_TBL_SAVEENV
-       CMD_TBL_SAVES
-       CMD_TBL_SCCINFO
-       CMD_TBL_SCSIBOOT
-       CMD_TBL_SCSI
-       CMD_TBL_SETDCR
-       CMD_TBL_SETENV
-       CMD_TBL_SIINFO
-       CMD_TBL_SITINFO
-       CMD_TBL_SIUINFO
-       CMD_TBL_MISC            /* sleep */
-       CMD_TBL_SMCINFO
-       CMD_TBL_SPIINFO
-       CMD_TBL_SPI
-       CMD_TBL_STACK
-       CMD_TBL_STEP
-       CMD_TBL_TFTPB
-       CMD_TBL_USBBOOT
-       CMD_TBL_USB
-       CMD_TBL_VERS
-       CMD_TBL_BSP
-       CMD_TBL_VFD
-       CMD_TBL_QUES            /* keep this ("help") the last entry */
-       /* the following entry terminates this table */
-       MK_CMD_TBL_ENTRY( NULL, 0, 0, 0, NULL, NULL, NULL )
-};