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/*
* of_node.c - device tree node handling support
*
* Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* 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 version 2
* as published by the Free Software Foundation.
*
* 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.
*
*/
#include <common.h>
#include <environment.h>
#include <fdt.h>
#include <of.h>
#include <complete.h>
#include <command.h>
#include <fs.h>
#include <malloc.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
#include <errno.h>
#include <getopt.h>
#include <init.h>
#include <libgen.h>
static int do_of_node(int argc, char *argv[])
{
int opt;
int delete = 0;
int create = 0;
char *path = NULL;
struct device_node *node = NULL;
struct device_node *root;
while ((opt = getopt(argc, argv, "cd")) > 0) {
switch (opt) {
case 'c':
create = 1;
break;
case 'd':
delete = 1;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
if (optind == argc)
return COMMAND_ERROR_USAGE;
if (optind < argc) {
path = argv[optind];
}
root = of_get_root_node();
if (!root) {
printf("root node not set\n");
return -ENOENT;
}
if (create) {
if (!path)
return COMMAND_ERROR_USAGE;
node = of_create_node(root, path);
if (!node)
return -EINVAL;
return 0;
}
if (delete) {
if (!path)
return COMMAND_ERROR_USAGE;
node = of_find_node_by_path(path);
if (!node) {
printf("Cannot find nodepath %s\n", path);
return -ENOENT;
}
of_delete_node(node);
}
return 0;
}
BAREBOX_CMD_HELP_START(of_node)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-c", "create a new node")
BAREBOX_CMD_HELP_OPT ("-d", "delete a node")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(of_node)
.cmd = do_of_node,
BAREBOX_CMD_DESC("create/delete nodes in the device tree")
BAREBOX_CMD_OPTS("[-cd] NODE NAME")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_COMPLETE(devicetree_complete)
BAREBOX_CMD_HELP(cmd_of_node_help)
BAREBOX_CMD_END
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