12e192b24SSimon Glass /*
22e192b24SSimon Glass * Copyright 2000-2009
32e192b24SSimon Glass * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
42e192b24SSimon Glass *
52e192b24SSimon Glass * SPDX-License-Identifier: GPL-2.0+
62e192b24SSimon Glass */
72e192b24SSimon Glass
82e192b24SSimon Glass #include <common.h>
92e192b24SSimon Glass #include <command.h>
102e192b24SSimon Glass
do_help(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])112e192b24SSimon Glass static int do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
122e192b24SSimon Glass {
13*f8bb6964SSimon Glass #ifdef CONFIG_CMDLINE
142e192b24SSimon Glass cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd);
152e192b24SSimon Glass const int len = ll_entry_count(cmd_tbl_t, cmd);
162e192b24SSimon Glass return _do_help(start, len, cmdtp, flag, argc, argv);
17*f8bb6964SSimon Glass #else
18*f8bb6964SSimon Glass return 0;
19*f8bb6964SSimon Glass #endif
202e192b24SSimon Glass }
212e192b24SSimon Glass
222e192b24SSimon Glass U_BOOT_CMD(
232e192b24SSimon Glass help, CONFIG_SYS_MAXARGS, 1, do_help,
242e192b24SSimon Glass "print command description/usage",
252e192b24SSimon Glass "\n"
262e192b24SSimon Glass " - print brief description of all commands\n"
272e192b24SSimon Glass "help command ...\n"
282e192b24SSimon Glass " - print detailed usage of 'command'"
292e192b24SSimon Glass );
302e192b24SSimon Glass
312e192b24SSimon Glass /* This does not use the U_BOOT_CMD macro as ? can't be used in symbol names */
322e192b24SSimon Glass ll_entry_declare(cmd_tbl_t, question_mark, cmd) = {
332e192b24SSimon Glass "?", CONFIG_SYS_MAXARGS, 1, do_help,
342e192b24SSimon Glass "alias for 'help'",
352e192b24SSimon Glass #ifdef CONFIG_SYS_LONGHELP
362e192b24SSimon Glass ""
372e192b24SSimon Glass #endif /* CONFIG_SYS_LONGHELP */
382e192b24SSimon Glass };
39