diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/Makefile.tests | 3 | ||||
| -rwxr-xr-x | tests/run_tests.sh | 3 | ||||
| -rw-r--r-- | tests/subnode_iterate.c | 94 | ||||
| -rw-r--r-- | tests/subnode_iterate.dts | 44 |
4 files changed, 143 insertions, 1 deletions
diff --git a/tests/Makefile.tests b/tests/Makefile.tests index d59bff8..dafb618 100644 --- a/tests/Makefile.tests +++ b/tests/Makefile.tests @@ -20,7 +20,8 @@ LIB_TESTS_L = get_mem_rsv \ dtb_reverse dtbs_equal_unordered \ add_subnode_with_nops path_offset_aliases \ utilfdt_test \ - integer-expressions + integer-expressions \ + subnode_iterate LIB_TESTS = $(LIB_TESTS_L:%=$(TESTS_PREFIX)%) LIBTREE_TESTS_L = truncated_property diff --git a/tests/run_tests.sh b/tests/run_tests.sh index b56b626..b013761 100755 --- a/tests/run_tests.sh +++ b/tests/run_tests.sh @@ -241,6 +241,9 @@ libfdt_tests () { tree1_tests_rw noppy.$basetree done + run_dtc_test -I dts -O dtb -o subnode_iterate.dtb subnode_iterate.dts + run_test subnode_iterate subnode_iterate.dtb + # Tests for behaviour on various sorts of corrupted trees run_test truncated_property diff --git a/tests/subnode_iterate.c b/tests/subnode_iterate.c new file mode 100644 index 0000000..b9f379d --- /dev/null +++ b/tests/subnode_iterate.c @@ -0,0 +1,94 @@ +/* + * 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(); +} diff --git a/tests/subnode_iterate.dts b/tests/subnode_iterate.dts new file mode 100644 index 0000000..14a0d3a --- /dev/null +++ b/tests/subnode_iterate.dts @@ -0,0 +1,44 @@ +/dts-v1/; + +/ { + #address-cells = <1>; + #size-cells = <0>; + + test1 { + subnodes = <2>; + linux,phandle = <0x1>; + #address-cells = <1>; + #size-cells = <0>; + PowerPC,970@0 { + name = "PowerPC,970"; + device_type = "cpu"; + reg = <0x00000000>; + clock-frequency = <1600000000>; + timebase-frequency = <33333333>; + linux,boot-cpu; + i-cache-size = <65536>; + d-cache-size = <32768>; + another-sub-node { + should-be-ignored; + yet-another { + should-also-be-ignored; + }; + }; + }; + + PowerPC,970@1 { + name = "PowerPC,970"; + device_type = "cpu"; + reg = <0x00000001>; + clock-frequency = <1600000000>; + timebase-frequency = <33333333>; + i-cache-size = <65536>; + d-cache-size = <32768>; + }; + }; + + test2 { + subnodes = <0>; + }; +}; + |