qemu/dtc/tests/sized_cells.c

   1 /*
   2  * libfdt - Flat Device Tree manipulation
   3  *      Testcase for variable sized cells in dtc
   4  * Copyright (C) 2006 David Gibson, IBM Corporation.
   5  * Copyright (C) 2011 The Chromium Authors. All rights reserved.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public License
   9  * as published by the Free Software Foundation; either version 2.1 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <stdint.h>
  25
  26 #include <libfdt.h>
  27
  28 #include "tests.h"
  29 #include "testdata.h"
  30
  31 static void check_compare_properties(void *fdt,
  32                                      char const *name_one,
  33                                      char const *name_two)
  34 {
  35         const void *propval;
  36         int proplen;
  37
  38         propval = fdt_getprop(fdt, 0, name_one, &proplen);
  39
  40         if (!propval)
  41                 FAIL("fdt_getprop(\"%s\"): %s",
  42                      name_one,
  43                      fdt_strerror(proplen));
  44
  45         check_getprop(fdt, 0, name_two, proplen, propval);
  46 }
  47
  48 int main(int argc, char *argv[])
  49 {
  50         void *fdt;
  51         uint8_t expected_8[6] = {TEST_CHAR1,
  52                                  TEST_CHAR2,
  53                                  TEST_CHAR3,
  54                                  TEST_CHAR4,
  55                                  TEST_CHAR5,
  56                                  TEST_VALUE_1 >> 24};
  57         uint16_t expected_16[6];
  58         uint32_t expected_32[6];
  59         uint64_t expected_64[6];
  60         int i;
  61
  62         for (i = 0; i < 5; ++i) {
  63                 expected_16[i] = cpu_to_fdt16(expected_8[i]);
  64                 expected_32[i] = cpu_to_fdt32(expected_8[i]);
  65                 expected_64[i] = cpu_to_fdt64(expected_8[i]);
  66         }
  67
  68         expected_16[5] = cpu_to_fdt16(TEST_VALUE_1 >> 16);
  69         expected_32[5] = cpu_to_fdt32(TEST_VALUE_1);
  70         expected_64[5] = cpu_to_fdt64(TEST_ADDR_1);
  71
  72         test_init(argc, argv);
  73         fdt = load_blob_arg(argc, argv);
  74
  75         check_getprop(fdt, 0, "cells-8b", sizeof(expected_8), expected_8);
  76         check_getprop(fdt, 0, "cells-16b", sizeof(expected_16), expected_16);
  77         check_getprop(fdt, 0, "cells-32b", sizeof(expected_32), expected_32);
  78         check_getprop(fdt, 0, "cells-64b", sizeof(expected_64), expected_64);
  79
  80         check_compare_properties(fdt, "cells-one-16b", "cells-one-32b");
  81
  82         PASS();
  83 }