d2409ec0f7
The BIT_INDEX() macro assumed little-endian. This commit adds big-endian support, conditioned on the preprocessor define CONFIG_BIG_ENDIAN. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <ztest.h>
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#include <arch/cpu.h>
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#include <tc_util.h>
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#ifdef CONFIG_BIG_ENDIAN
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#define BIT_INDEX(bit) ((3 - ((bit >> 3) & 0x3)) + 4*(bit >> 5))
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#else
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#define BIT_INDEX(bit) (bit >> 3)
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#endif
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#define BIT_VAL(bit) (1 << (bit & 0x7))
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#define BITFIELD_SIZE 512
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/**
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* @addtogroup kernel_common_tests
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* @{
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*/
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/**
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* @brief Test bitfield operations
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*
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* @see sys_test_bit(), sys_set_bit(), sys_clear_bit(),
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* sys_bitfield_set_bit(), sys_bitfield_clear_bit(),
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* sys_bitfield_test_bit(), sys_bitfield_test_and_set_bit(),
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* sys_bitfield_test_and_clear_bit()
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*/
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void test_bitfield(void)
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{
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uint32_t b1 = 0U;
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unsigned char b2[BITFIELD_SIZE >> 3] = { 0 };
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unsigned int bit;
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int ret;
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TC_PRINT("twiddling bits....\n");
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for (bit = 0U; bit < 32; ++bit) {
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sys_set_bit((mem_addr_t)&b1, bit);
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zassert_equal(b1, (1 << bit),
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"sys_set_bit failed on bit %d\n", bit);
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zassert_true(sys_test_bit((mem_addr_t)&b1, bit),
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"sys_test_bit did not detect bit %d\n", bit);
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sys_clear_bit((mem_addr_t)&b1, bit);
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zassert_equal(b1, 0, "sys_clear_bit failed for bit %d\n", bit);
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zassert_false(sys_test_bit((mem_addr_t)&b1, bit),
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"sys_test_bit erroneously detected bit %d\n",
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bit);
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zassert_false(sys_test_and_set_bit((mem_addr_t)&b1, bit),
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"sys_test_and_set_bit erroneously"
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" detected bit %d\n", bit);
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zassert_equal(b1, (1 << bit),
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"sys_test_and_set_bit did not set bit %d\n",
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bit);
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zassert_true(sys_test_and_set_bit((mem_addr_t)&b1, bit),
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"sys_test_and_set_bit did not detect bit %d\n",
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bit);
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zassert_equal(b1, (1 << bit),
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"sys_test_and_set_bit cleared bit %d\n", bit);
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zassert_true(sys_test_and_clear_bit((mem_addr_t)&b1, bit),
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"sys_test_and_clear_bit did not detect bit %d\n",
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bit);
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zassert_equal(b1, 0, "sys_test_and_clear_bit did not clear"
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" bit %d\n", bit);
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zassert_false(sys_test_and_clear_bit((mem_addr_t)&b1, bit),
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"sys_test_and_clear_bit erroneously detected"
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" bit %d\n", bit);
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zassert_equal(b1, 0, "sys_test_and_clear_bit set bit %d\n",
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bit);
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}
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for (bit = 0U; bit < BITFIELD_SIZE; ++bit) {
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sys_bitfield_set_bit((mem_addr_t)b2, bit);
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zassert_equal(b2[BIT_INDEX(bit)], BIT_VAL(bit),
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"sys_bitfield_set_bit failed for bit %d\n",
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bit);
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zassert_true(sys_bitfield_test_bit((mem_addr_t)b2, bit),
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"sys_bitfield_test_bit did not detect bit %d\n",
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bit);
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sys_bitfield_clear_bit((mem_addr_t)b2, bit);
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zassert_equal(b2[BIT_INDEX(bit)], 0,
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"sys_bitfield_clear_bit failed for bit %d\n",
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bit);
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zassert_false(sys_bitfield_test_bit((mem_addr_t)b2, bit),
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"sys_bitfield_test_bit erroneously detected"
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" bit %d\n", bit);
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ret = sys_bitfield_test_and_set_bit((mem_addr_t)b2, bit);
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zassert_false(ret, "sys_bitfield_test_and_set_bit erroneously"
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" detected bit %d\n", bit);
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zassert_equal(b2[BIT_INDEX(bit)], BIT_VAL(bit),
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"sys_bitfield_test_and_set_bit did not set"
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" bit %d\n", bit);
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zassert_true(sys_bitfield_test_and_set_bit((mem_addr_t)b2, bit),
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"sys_bitfield_test_and_set_bit did not detect bit"
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" %d\n", bit);
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zassert_equal(b2[BIT_INDEX(bit)], BIT_VAL(bit),
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"sys_bitfield_test_and_set_bit cleared bit %d\n",
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bit);
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zassert_true(sys_bitfield_test_and_clear_bit((mem_addr_t)b2,
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bit), "sys_bitfield_test_and_clear_bit did not"
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" detect bit %d\n", bit);
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zassert_equal(b2[BIT_INDEX(bit)], 0,
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"sys_bitfield_test_and_clear_bit did not"
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" clear bit %d\n", bit);
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zassert_false(sys_bitfield_test_and_clear_bit((mem_addr_t)b2,
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bit), "sys_bitfield_test_and_clear_bit"
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" erroneously detected bit %d\n", bit);
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zassert_equal(b2[BIT_INDEX(bit)], 0,
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"sys_bitfield_test_and_clear_bit set bit %d\n",
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bit);
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}
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}
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/**
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* @}
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*/
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