You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.3 KiB
94 lines
2.3 KiB
/* |
|
* libfdt - Flat Device Tree manipulation |
|
* Tests that fdt_next_subnode() works as expected |
|
* |
|
* Copyright (C) 2013 Google, Inc |
|
* |
|
* Copyright (C) 2007 David Gibson, IBM Corporation. |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public License |
|
* as published by the Free Software Foundation; either version 2.1 of |
|
* the License, or (at your option) any later version. |
|
* |
|
* This library 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 |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with this library; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include <stdlib.h> |
|
#include <stdio.h> |
|
#include <string.h> |
|
#include <stdint.h> |
|
|
|
#include <libfdt.h> |
|
|
|
#include "tests.h" |
|
#include "testdata.h" |
|
|
|
static void test_node(void *fdt, int parent_offset) |
|
{ |
|
fdt32_t subnodes; |
|
const fdt32_t *prop; |
|
int offset; |
|
int count; |
|
int len; |
|
|
|
/* This property indicates the number of subnodes to expect */ |
|
prop = fdt_getprop(fdt, parent_offset, "subnodes", &len); |
|
if (!prop || len != sizeof(fdt32_t)) { |
|
FAIL("Missing/invalid subnodes property at '%s'", |
|
fdt_get_name(fdt, parent_offset, NULL)); |
|
} |
|
subnodes = cpu_to_fdt32(*prop); |
|
|
|
count = 0; |
|
for (offset = fdt_first_subnode(fdt, parent_offset); |
|
offset >= 0; |
|
offset = fdt_next_subnode(fdt, offset)) |
|
count++; |
|
|
|
if (count != subnodes) { |
|
FAIL("Node '%s': Expected %d subnodes, got %d\n", |
|
fdt_get_name(fdt, parent_offset, NULL), subnodes, |
|
count); |
|
} |
|
} |
|
|
|
static void check_fdt_next_subnode(void *fdt) |
|
{ |
|
int offset; |
|
int count = 0; |
|
|
|
for (offset = fdt_first_subnode(fdt, 0); |
|
offset >= 0; |
|
offset = fdt_next_subnode(fdt, offset)) { |
|
test_node(fdt, offset); |
|
count++; |
|
} |
|
|
|
if (count != 2) |
|
FAIL("Expected %d tests, got %d\n", 2, count); |
|
} |
|
|
|
int main(int argc, char *argv[]) |
|
{ |
|
void *fdt; |
|
|
|
test_init(argc, argv); |
|
if (argc != 2) |
|
CONFIG("Usage: %s <dtb file>", argv[0]); |
|
|
|
fdt = load_blob(argv[1]); |
|
if (!fdt) |
|
FAIL("No device tree available"); |
|
|
|
check_fdt_next_subnode(fdt); |
|
|
|
PASS(); |
|
}
|
|
|