/* $NetBSD: references.c,v 1.1.1.2 2017/06/08 15:59:27 skrll Exp $ */ /* * 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 #include #include #include #include #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; uint32_t h1, h2, h4, h5; 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)); h1 = fdt_get_phandle(fdt, n1); h2 = fdt_get_phandle(fdt, n2); h4 = fdt_get_phandle(fdt, n4); h5 = fdt_get_phandle(fdt, n5); 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 ((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); check_ref(fdt, n1, h2); check_ref(fdt, n2, h1); check_ref(fdt, n3, h4); check_rref(fdt); PASS(); }