This patch does probably too much, but it's hard (and very cumbersome/time consuming) to break it out. What is does is this: * each command has one short description, e.g. "list MUX configuration" * made sure the short descriptions start lowercase * each command has one usage. That string contains just the options, e.g. "[-npn]". It's not part of the long help text. * that is, it doesn't say "[OPTIONS]" anymore, every usable option is listed by character in this (short) option string (the long description is in the long help text, as before) * help texts have been reworked, to make them - sometimes smaller - sometimes describe the options better - more often present themselves in a nicer format * all long help texts are now created with BUSYBOX_CMD_HELP_ macros, no more 'static const __maybe_unused char cmd_foobar_help[]' * made sure the long help texts starts uppercase * because cmdtp->name and cmdtp->opts together provide the new usage, all "Usage: foobar" texts have been removed from the long help texts * BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this is nicer in the source code * BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself * made sure no line gets longer than 77 characters * delibertely renamed cmdtp->usage, so that we can get compile-time errors (e.g. in out-of-tree modules that use register_command() * the 'help' command can now always emit the usage, even without compiled long help texts * 'help -v' gives a list of commands with their short description, this is similar like the old "help" command before my patchset * 'help -a' gives out help of all commands Signed-off-by: Holger Schurig <holgerschurig@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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* iomem.c - barebox iomem command
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*
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* Copyright (c) 2011 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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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 modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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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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#include <asm/io.h>
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#include <common.h>
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#include <command.h>
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static void __print_resources(struct resource *res, int indent)
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{
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struct resource *r;
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int i;
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for (i = 0; i < indent; i++)
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printf(" ");
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printf(PRINTF_CONVERSION_RESOURCE " - " PRINTF_CONVERSION_RESOURCE
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" (size " PRINTF_CONVERSION_RESOURCE ") %s\n",
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res->start, res->end, resource_size(res), res->name);
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list_for_each_entry(r, &res->children, sibling)
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__print_resources(r, indent + 1);
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}
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static void print_resources(struct resource *res)
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{
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__print_resources(res, 0);
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}
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static int do_iomem(int argc, char *argv[])
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{
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print_resources(&iomem_resource);
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return 0;
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}
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BAREBOX_CMD_START(iomem)
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.cmd = do_iomem,
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BAREBOX_CMD_DESC("show IO memory usage")
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BAREBOX_CMD_GROUP(CMD_GRP_INFO)
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BAREBOX_CMD_END
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#if IO_SPACE_LIMIT > 0
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static int do_ioport(int argc, char *argv[])
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{
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print_resources(&ioport_resource);
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return 0;
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}
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BAREBOX_CMD_START(ioport)
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.cmd = do_ioport,
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BAREBOX_CMD_DESC("show IO port usage")
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BAREBOX_CMD_GROUP(CMD_GRP_INFO)
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BAREBOX_CMD_END
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#endif
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