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/*
* libfdt - Flat Device Tree manipulation
* Testcase for phandle references in dtc
* Copyright (C) 2006 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 check_ref(const void *fdt, int node, uint32_t checkref)
{
const fdt32_t *p;
uint32_t ref;
int len;
p = fdt_getprop(fdt, node, "ref", &len);
if (!p)
FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len));
if (len != sizeof(*p))
FAIL("'ref' in node at %d has wrong size (%d instead of %zd)",
node, len, sizeof(*p));
ref = fdt32_to_cpu(*p);
if (ref != checkref)
FAIL("'ref' in node at %d has value 0x%x instead of 0x%x",
node, ref, checkref);
p = fdt_getprop(fdt, node, "lref", &len);
if (!p)
FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len));
if (len != sizeof(*p))
FAIL("'lref' in node at %d has wrong size (%d instead of %zd)",
node, len, sizeof(*p));
ref = fdt32_to_cpu(*p);
if (ref != checkref)
FAIL("'lref' in node at %d has value 0x%x instead of 0x%x",
node, ref, checkref);
}
static void check_rref(const void *fdt)
{
const fdt32_t *p;
uint32_t ref;
int len;
p = fdt_getprop(fdt, 0, "rref", &len);
if (!p)
FAIL("fdt_getprop(0, \"rref\"): %s", fdt_strerror(len));
if (len != sizeof(*p))
FAIL("'rref' in root node has wrong size (%d instead of %zd)",
len, sizeof(*p));
ref = fdt32_to_cpu(*p);
if (ref != fdt_get_phandle(fdt, 0))
FAIL("'rref' in root node has value 0x%x instead of 0x0", ref);
}
int main(int argc, char *argv[])
{
void *fdt;
int n1, n2, n3, n4, n5, n6, err;
uint32_t h1, h2, h4, h5, h6, hn;
test_init(argc, argv);
fdt = load_blob_arg(argc, argv);
n1 = fdt_path_offset(fdt, "/node1");
if (n1 < 0)
FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1));
n2 = fdt_path_offset(fdt, "/node2");
if (n2 < 0)
FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2));
n3 = fdt_path_offset(fdt, "/node3");
if (n3 < 0)
FAIL("fdt_path_offset(/node3): %s", fdt_strerror(n3));
n4 = fdt_path_offset(fdt, "/node4");
if (n4 < 0)
FAIL("fdt_path_offset(/node4): %s", fdt_strerror(n4));
n5 = fdt_path_offset(fdt, "/node5");
if (n5 < 0)
FAIL("fdt_path_offset(/node5): %s", fdt_strerror(n5));
n6 = fdt_path_offset(fdt, "/node6");
if (n6 < 0)
FAIL("fdt_path_offset(/node6): %s", fdt_strerror(n6));
h1 = fdt_get_phandle(fdt, n1);
h2 = fdt_get_phandle(fdt, n2);
h4 = fdt_get_phandle(fdt, n4);
h5 = fdt_get_phandle(fdt, n5);
h6 = fdt_get_phandle(fdt, n6);
if (h1 != 0x2000)
FAIL("/node1 has wrong phandle, 0x%x instead of 0x%x",
h1, 0x2000);
if (h2 != 0x1)
FAIL("/node2 has wrong phandle, 0x%x instead of 0x%x",
h2, 0x1);
if (h6 != FDT_MAX_PHANDLE)
FAIL("/node6 has wrong phandle, 0x%x instead of 0x%x",
h6, FDT_MAX_PHANDLE);
if ((h4 == 0x2000) || (h4 == 0x1) || (h4 == 0))
FAIL("/node4 has bad phandle, 0x%x", h4);
if ((h5 == 0) || (h5 == -1))
FAIL("/node5 has bad phandle, 0x%x", h5);
if ((h5 == h4) || (h5 == h2) || (h5 == h1))
FAIL("/node5 has duplicate phandle, 0x%x", h5);
/*
* /node6 has phandle FDT_MAX_PHANDLE, so fdt_generate_phandle() is
* expected to fail.
*/
err = fdt_generate_phandle(fdt, &hn);
if (err != -FDT_ERR_NOPHANDLES)
FAIL("generated invalid phandle 0x%x\n", hn);
check_ref(fdt, n1, h2);
check_ref(fdt, n2, h1);
check_ref(fdt, n3, h4);
check_rref(fdt);
PASS();
}
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