1 /*
2 * Copyright (C) 2022 Huawei Technologies Co., Ltd.
3 * Licensed under the Mulan PSL v2.
4 * You can use this software according to the terms and conditions of the Mulan PSL v2.
5 * You may obtain a copy of Mulan PSL v2 at:
6 * http://license.coscl.org.cn/MulanPSL2
7 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
8 * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
9 * PURPOSE.
10 * See the Mulan PSL v2 for more details.
11 */
12 #ifndef LIBTEEOS_TEE_BITMAP_H
13 #define LIBTEEOS_TEE_BITMAP_H
14
15 #include <stdint.h>
16 #include <stdio.h>
17 #include <stdbool.h>
18
19 #define MOVE_BIT 3
20 #define INDEX_MAX 8
21 #define BITMAP_MASK 0xFF
22
23 int32_t get_valid_bit(const uint8_t *bitmap, uint32_t bit_max);
24
is_bit_seted(const uint8_t * bitmap,uint32_t bit_max,uint32_t bit)25 static inline bool is_bit_seted(const uint8_t *bitmap, uint32_t bit_max, uint32_t bit)
26 {
27 if ((bitmap == NULL) || (bit >= bit_max))
28 return false;
29
30 return (((bitmap[bit >> MOVE_BIT]) & (0x1 << (bit % INDEX_MAX))) ? true : false);
31 }
32
set_bitmap(uint8_t * bitmap,uint32_t bit_max,uint32_t bit)33 static inline void set_bitmap(uint8_t *bitmap, uint32_t bit_max, uint32_t bit)
34 {
35 if ((bitmap == NULL) || (bit >= bit_max))
36 return;
37
38 bitmap[bit >> MOVE_BIT] = (bitmap[bit >> MOVE_BIT]) | (0x1 << (bit % INDEX_MAX));
39 }
40
clear_bitmap(uint8_t * bitmap,uint32_t bit_max,uint32_t bit)41 static inline void clear_bitmap(uint8_t *bitmap, uint32_t bit_max, uint32_t bit)
42 {
43 if ((bitmap == NULL) || (bit >= bit_max))
44 return;
45
46 bitmap[bit >> MOVE_BIT] = (bitmap[bit >> MOVE_BIT]) & (~(uint8_t)(0x1 << (bit % INDEX_MAX)));
47 }
48 #endif
49