1 /* 2 * Copyright (c) 2022 FuZhou Lockzhiner Electronic Co., Ltd. All rights reserved. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 /** 17 * @addtogroup Lockzhiner 18 * 19 * @file spinlock.h 20 */ 21 22 #ifndef LZ_HARDWARE_SPINLOCK_H 23 #define LZ_HARDWARE_SPINLOCK_H 24 25 typedef struct { 26 unsigned int flags; 27 } Spinlock; 28 29 #define SPIN_LOCK_INITIALIZER \ 30 { \ 31 .flags = 0, \ 32 } 33 34 #define SPIN_LOCK_INIT(lock) Spinlock lock = SPIN_LOCK_INITIALIZER 35 36 void SpinLockInit(Spinlock *lock); 37 38 /** 39 * @par Description: 40 * This API is used to lock the spin lock. 41 * 42 * @param lock the spin lock to be locked 43 * 44 */ 45 void SpinLock(Spinlock *lock); 46 47 /** 48 * @par Description: 49 * This API is used to unlock the spin lock. 50 * 51 * @param lock the spin lock to be unlocked 52 * 53 */ 54 void SpinUnlock(Spinlock *lock); 55 56 #endif 57 58