tests/kernel/common/src/bitfield.c

/*
 * Copyright (c) 2016 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <ztest.h>

#define BIT_INDEX(bit)  (bit >> 3)
#define BIT_VAL(bit)    (1 << (bit & 0x7))
#define BITFIELD_SIZE   512

void bitfield_test(void)
{
	uint32_t b1 = 0;
	unsigned char b2[BITFIELD_SIZE >> 3] = { 0 };
	int test_rv;
	unsigned int bit;
	int ret;

	for (bit = 0; bit < 32; ++bit) {

		sys_set_bit((mem_addr_t)&b1, bit);

		assert_true(b1 == (1 << bit), "sys_set_bit failed on bit");

		assert_true((sys_test_bit((mem_addr_t)&b1, bit) == 0), "sys_test_bit did not detect bit");

		sys_clear_bit((mem_addr_t)&b1, bit);

		assert_true((b1 == 0), "sys_clear_bit failed for bit");

		assert_true((sys_test_bit((mem_addr_t)&b1, bit) == 0), "sys_test_bit erroneously detected bit");

		assert_true((sys_test_and_set_bit((mem_addr_t)&b1, bit) == 0), "sys_test_and_set_bit erroneously detected bit");

		assert_true((b1 == (1 << bit)), "sys_test_and_set_bit");

		printk("%d\n", sys_test_and_set_bit((mem_addr_t)&b1, bit));
		assert_true((sys_test_and_set_bit((mem_addr_t)&b1, bit) == 0), "sys_test_and_set_bit");

	}
#if 0



	if (b1 != (1 << bit)) {
		b1 = (1 << bit);
		TC_PRINT("sys_test_and_set_bit did not set bit %d\n",
			 bit);
		failed++;
	}
	ret = sys_test_and_set_bit((mem_addr_t)&b1, bit);
	if (!ret) {
		TC_PRINT("sys_test_and_set_bit did not detect bit %d\n",
			 bit);
		failed++;
	}
	if (b1 != (1 << bit)) {
		b1 = (1 << bit);
		TC_PRINT("sys_test_and_set_bit cleared bit %d\n",
			 bit);
		failed++;
	}

	ret = sys_test_and_clear_bit((mem_addr_t)&b1, bit);
	if (!ret) {
		TC_PRINT("sys_test_and_clear_bit did not detect bit %d\n",
			 bit);
		failed++;
	}
	if (b1 != 0) {
		b1 = 0;
		TC_PRINT("sys_test_and_clear_bit did not clear bit %d\n",
			 bit);
		failed++;
	}
	ret = sys_test_and_clear_bit((mem_addr_t)&b1, bit);
	if (ret) {
		TC_PRINT("sys_test_and_clear_bit erroneously detected bit %d\n",
			 bit);
		failed++;
	}
	if (b1 != 0) {
		b1 = 0;
		TC_PRINT("sys_test_and_clear_bit set bit %d\n",
			 bit);
		failed++;
	}
}

for (bit = 0; bit < BITFIELD_SIZE; ++bit) {
	sys_bitfield_set_bit((mem_addr_t)b2, bit);
	if (b2[BIT_INDEX(bit)] != BIT_VAL(bit)) {
		TC_PRINT("got %d expected %d\n", b2[BIT_INDEX(bit)],
			 BIT_VAL(bit));
		TC_PRINT("sys_bitfield_set_bit failed for bit %d\n",
			 bit);
		b2[BIT_INDEX(bit)] = BIT_VAL(bit);
		failed++;
	}

	if (!sys_bitfield_test_bit((mem_addr_t)b2, bit)) {
		TC_PRINT("sys_bitfield_test_bit did not detect bit %d\n",
			 bit);
		failed++;
	}

	sys_bitfield_clear_bit((mem_addr_t)b2, bit);
	if (b2[BIT_INDEX(bit)] != 0) {
		b2[BIT_INDEX(bit)] = 0;
		TC_PRINT("sys_bitfield_clear_bit failed for bit %d\n",
			 bit);
		failed++;
	}

	if (sys_bitfield_test_bit((mem_addr_t)b2, bit)) {
		TC_PRINT("sys_bitfield_test_bit erroneously detected bit %d\n",
			 bit);
		failed++;
	}

	ret = sys_bitfield_test_and_set_bit((mem_addr_t)b2, bit);
	if (ret) {
		TC_PRINT("sys_bitfield_test_and_set_bit erroneously detected bit %d\n",
			 bit);
		failed++;
	}
	if (b2[BIT_INDEX(bit)] != BIT_VAL(bit)) {
		b2[BIT_INDEX(bit)] = BIT_VAL(bit);
		TC_PRINT("sys_bitfield_test_and_set_bit did not set bit %d\n",
			 bit);
		failed++;
	}
	ret = sys_bitfield_test_and_set_bit((mem_addr_t)b2, bit);
	if (!ret) {
		TC_PRINT("sys_bitfield_test_and_set_bit did not detect bit %d\n",
			 bit);
		failed++;
	}
	if (b2[BIT_INDEX(bit)] != BIT_VAL(bit)) {
		b2[BIT_INDEX(bit)] = BIT_VAL(bit);
		TC_PRINT("sys_bitfield_test_and_set_bit cleared bit %d\n",
			 bit);
		failed++;
	}

	ret = sys_bitfield_test_and_clear_bit((mem_addr_t)b2, bit);
	if (!ret) {
		TC_PRINT("sys_bitfield_test_and_clear_bit did not detect bit %d\n",
			 bit);
		failed++;
	}
	if (b2[BIT_INDEX(bit)] != 0) {
		b2[BIT_INDEX(bit)] = 0;
		TC_PRINT("sys_bitfield_test_and_clear_bit did not clear bit %d\n",
			 bit);
		failed++;
	}
	ret = sys_bitfield_test_and_clear_bit((mem_addr_t)b2, bit);
	if (ret) {
		TC_PRINT("sys_bitfield_test_and_clear_bit erroneously detected bit %d\n",
			 bit);
		failed++;
	}
	if (b2[BIT_INDEX(bit)] != 0) {
		b2[BIT_INDEX(bit)] = 0;
		TC_PRINT("sys_bitfield_test_and_clear_bit set bit %d\n",
			 bit);
		failed++;
	}
}

if (failed) {
	TC_PRINT("%d tests failed\n", failed);
	test_rv = TC_FAIL;
} else {
	test_rv = TC_PASS;
}

TC_END_RESULT(test_rv);
TC_END_REPORT(test_rv);
#endif
}