/*
- * (C) Copyright 2000-2003
+ * (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <common.h>
#include <command.h>
-
-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;
-}
-
-cmd_tbl_t U_BOOT_CMD(VERS) = MK_CMD_ENTRY(
- "version", 1, 1, do_version,
- "version - print monitor version\n",
- NULL
-);
-
-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;
-}
-
-cmd_tbl_t U_BOOT_CMD(ECHO) = MK_CMD_ENTRY(
- "echo", CFG_MAXARGS, 1, do_echo,
- "echo - echo args to console\n",
- "[args..]\n"
- " - echo args to console; \\c suppresses newline\n"
-);
+#include <linux/ctype.h>
/*
* 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) { /*show list of commands */
-
- int cmd_items = &__u_boot_cmd_end -
- &__u_boot_cmd_start; /* pointer arith! */
+ 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 = &__u_boot_cmd_start;
+ cmdtp = cmd_start;
for (i = 0; i < cmd_items; i++) {
cmd_array[i] = cmdtp++;
}
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) {
+ 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];
const char *usage = cmd_array[i]->usage;
/* allow user abort */
- if (ctrlc ())
+ if (ctrlc())
return 1;
if (usage == NULL)
continue;
- puts (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 */
+ cmdtp = find_cmd_tbl(argv[i], cmd_start, cmd_items);
+ if (cmdtp != NULL) {
+ rcode |= cmd_usage(cmdtp);
} else {
- printf ("Unknown command '%s' - try 'help'"
- " without arguments for list of all"
- " known commands\n\n", argv[i]
- );
+ printf("Unknown command '%s' - try 'help' without arguments for list of all known commands\n\n",
+ argv[i]);
rcode = 1;
}
}
return rcode;
}
-
-cmd_tbl_t U_BOOT_CMD(HELP) = MK_CMD_ENTRY(
- "help", 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"
-);
-
-cmd_tbl_t U_BOOT_CMD(QUES) = MK_CMD_ENTRY(
- "?", CFG_MAXARGS, 1, do_help,
- "? - alias for 'help'\n",
- NULL
-);
-
-/***************************************************************************
- * find command table entry for a command
- */
-cmd_tbl_t *find_cmd (const char *cmd)
+/* find command table entry for a command */
+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 = &__u_boot_cmd_start; /*Init value */
+ 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);
- for (cmdtp = &__u_boot_cmd_start;
- cmdtp != &__u_boot_cmd_end;
- cmdtp++) {
- if (strncmp (cmd, cmdtp->name, len) == 0) {
- if (len == strlen (cmdtp->name))
+ 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 ? */
return NULL; /* not found or ambiguous command */
}
+
+cmd_tbl_t *find_cmd(const char *cmd)
+{
+ cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd);
+ const int len = ll_entry_count(cmd_tbl_t, cmd);
+ return find_cmd_tbl(cmd, start, len);
+}
+
+int cmd_usage(const 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[])
+{
+ static char tmp_buf[512];
+ int space;
+
+ space = last_char == '\0' || isblank(last_char);
+
+ 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);
+
+ return 0;
+}
+
+/*************************************************************************************/
+
+static int complete_cmdv(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
+{
+ cmd_tbl_t *cmdtp = ll_entry_start(cmd_tbl_t, cmd);
+ const int count = ll_entry_count(cmd_tbl_t, cmd);
+ const cmd_tbl_t *cmdend = cmdtp + count;
+ 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 != cmdend; 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' || isblank(last_char)) {
+ 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 = 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 != cmdend; 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 (isblank(*s))
+ ++s;
+
+ if (*s == '\0') /* end of s, no more args */
+ break;
+
+ argv[argc++] = s; /* begin of argument string */
+
+ /* find end of string */
+ while (*s && !isblank(*s))
+ ++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;
+#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
+ case 'q':
+ return 8;
+#endif
+ 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;
+#ifdef 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
+#ifdef CONFIG_AUTO_COMPLETE
+ if (cmdtp->complete) {
+ addr = (ulong)(cmdtp->complete) + gd->reloc_off;
+ cmdtp->complete =
+ (int (*)(int, char * const [], char, int, char * []))addr;
+ }
+#endif
+ cmdtp++;
+ }
+}
+#endif
+
+/**
+ * Call a command function. This should be the only route in U-Boot to call
+ * a command, so that we can track whether we are waiting for input or
+ * executing a command.
+ *
+ * @param cmdtp Pointer to the command to execute
+ * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
+ * @param argc Number of arguments (arg 0 must be the command text)
+ * @param argv Arguments
+ * @return 0 if command succeeded, else non-zero (CMD_RET_...)
+ */
+static int cmd_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int result;
+
+ result = (cmdtp->cmd)(cmdtp, flag, argc, argv);
+ if (result)
+ debug("Command failed, result=%d\n", result);
+ return result;
+}
+
+enum command_ret_t cmd_process(int flag, int argc, char * const argv[],
+ int *repeatable, ulong *ticks)
+{
+ enum command_ret_t rc = CMD_RET_SUCCESS;
+ cmd_tbl_t *cmdtp;
+
+ /* Look up command in command table */
+ cmdtp = find_cmd(argv[0]);
+ if (cmdtp == NULL) {
+ printf("Unknown command '%s' - try 'help'\n", argv[0]);
+ return 1;
+ }
+
+ /* found - check max args */
+ if (argc > cmdtp->maxargs)
+ rc = CMD_RET_USAGE;
+
+#if defined(CONFIG_CMD_BOOTD)
+ /* avoid "bootd" recursion */
+ else if (cmdtp->cmd == do_bootd) {
+ if (flag & CMD_FLAG_BOOTD) {
+ puts("'bootd' recursion detected\n");
+ rc = CMD_RET_FAILURE;
+ } else {
+ flag |= CMD_FLAG_BOOTD;
+ }
+ }
+#endif
+
+ /* If OK so far, then do the command */
+ if (!rc) {
+ if (ticks)
+ *ticks = get_timer(0);
+ rc = cmd_call(cmdtp, flag, argc, argv);
+ if (ticks)
+ *ticks = get_timer(*ticks);
+ *repeatable &= cmdtp->repeatable;
+ }
+ if (rc == CMD_RET_USAGE)
+ rc = cmd_usage(cmdtp);
+ return rc;
+}
+
+int cmd_process_error(cmd_tbl_t *cmdtp, int err)
+{
+ if (err) {
+ printf("Command '%s' failed: Error %d\n", cmdtp->name, err);
+ return 1;
+ }
+
+ return 0;
+}
projects / karo-tx-uboot.git / blobdiff