183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
22e192b24SSimon Glass /*
32e192b24SSimon Glass * Copyright 2000-2009
42e192b24SSimon Glass * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
52e192b24SSimon Glass */
62e192b24SSimon Glass
72e192b24SSimon Glass #include <common.h>
82e192b24SSimon Glass #include <command.h>
92e192b24SSimon Glass
do_help(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])102e192b24SSimon Glass static int do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
112e192b24SSimon Glass {
12f8bb6964SSimon Glass #ifdef CONFIG_CMDLINE
132e192b24SSimon Glass cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd);
142e192b24SSimon Glass const int len = ll_entry_count(cmd_tbl_t, cmd);
152e192b24SSimon Glass return _do_help(start, len, cmdtp, flag, argc, argv);
16f8bb6964SSimon Glass #else
17f8bb6964SSimon Glass return 0;
18f8bb6964SSimon Glass #endif
192e192b24SSimon Glass }
202e192b24SSimon Glass
212e192b24SSimon Glass U_BOOT_CMD(
222e192b24SSimon Glass help, CONFIG_SYS_MAXARGS, 1, do_help,
232e192b24SSimon Glass "print command description/usage",
242e192b24SSimon Glass "\n"
252e192b24SSimon Glass " - print brief description of all commands\n"
262e192b24SSimon Glass "help command ...\n"
272e192b24SSimon Glass " - print detailed usage of 'command'"
282e192b24SSimon Glass );
292e192b24SSimon Glass
302e192b24SSimon Glass /* This does not use the U_BOOT_CMD macro as ? can't be used in symbol names */
312e192b24SSimon Glass ll_entry_declare(cmd_tbl_t, question_mark, cmd) = {
32*80a48dd4SBoris Brezillon "?", CONFIG_SYS_MAXARGS, cmd_always_repeatable, do_help,
332e192b24SSimon Glass "alias for 'help'",
342e192b24SSimon Glass #ifdef CONFIG_SYS_LONGHELP
352e192b24SSimon Glass ""
362e192b24SSimon Glass #endif /* CONFIG_SYS_LONGHELP */
372e192b24SSimon Glass };
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