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a89c33db96
Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
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* (C) Copyright 2001
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Misc functions
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*/
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#include <common.h>
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#include <command.h>
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int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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ulong start = get_timer(0);
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ulong delay;
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if (argc != 2) {
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cmd_usage(cmdtp);
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return 1;
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}
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delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
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while (get_timer(start) < delay) {
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if (ctrlc ()) {
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return (-1);
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}
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udelay (100);
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}
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return 0;
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}
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/* Implemented in $(CPU)/interrupts.c */
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#if defined(CONFIG_CMD_IRQ)
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int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
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U_BOOT_CMD(
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irqinfo, 1, 1, do_irqinfo,
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"print information about IRQs",
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""
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);
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#endif
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U_BOOT_CMD(
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sleep , 2, 1, do_sleep,
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"delay execution for some time",
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"N\n"
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" - delay execution for N seconds (N is _decimal_ !!!)"
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);
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