84e0e1346c
Add a function to retrieve the highest phandle in a given device tree. Acked-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Agner <stefan@agner.ch> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* libfdt - Flat Device Tree manipulation
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* Testcase for fdt_get_phandle()
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <libfdt.h>
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#include "tests.h"
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#include "testdata.h"
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static void check_phandle(void *fdt, const char *path, uint32_t checkhandle)
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{
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int offset;
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uint32_t phandle;
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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FAIL("Couldn't find %s", path);
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phandle = fdt_get_phandle(fdt, offset);
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if (phandle != checkhandle)
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FAIL("fdt_get_phandle(%s) returned 0x%x instead of 0x%x\n",
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path, phandle, checkhandle);
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}
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int main(int argc, char *argv[])
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{
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uint32_t max;
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void *fdt;
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test_init(argc, argv);
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fdt = load_blob_arg(argc, argv);
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check_phandle(fdt, "/", 0);
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check_phandle(fdt, "/subnode@2", PHANDLE_1);
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check_phandle(fdt, "/subnode@2/subsubnode@0", PHANDLE_2);
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max = fdt_get_max_phandle(fdt);
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if (max != PHANDLE_2)
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FAIL("fdt_get_max_phandle returned 0x%x instead of 0x%x\n",
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max, PHANDLE_2);
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PASS();
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}
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