| /*********************************************************************************************************************** | |
| * DISCLAIMER | |
| * This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products. No | |
| * other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all | |
| * applicable laws, including copyright laws. | |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING | |
| * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. TO THE MAXIMUM | |
| * EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES | |
| * SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS | |
| * SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of | |
| * this software. By using this software, you agree to the additional terms and conditions found by accessing the | |
| * following link: | |
| * http://www.renesas.com/disclaimer | |
| * | |
| * Copyright (C) 2011 Renesas Electronics Corporation. All rights reserved. | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| * File Name : locking.h | |
| * Description : This implements a locking mechanism that can be used by all code. The locking is done atomically so | |
| * common resources can be accessed safely. | |
| ***********************************************************************************************************************/ | |
| /********************************************************************************************************************** | |
| * History : DD.MM.YYYY Version Description | |
| * : 07.03.2012 1.00 First Release | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| Includes <System Includes> , "Project Includes" | |
| ***********************************************************************************************************************/ | |
| /* Fixed-size integer typedefs. */ | |
| #include <stdint.h> | |
| /* bool support. */ | |
| #include <stdbool.h> | |
| /*********************************************************************************************************************** | |
| Macro definitions | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| Typedef definitions | |
| ***********************************************************************************************************************/ | |
| typedef struct | |
| { | |
| /* The actual lock. int32_t is used because this is what the xchg() instruction takes as parameters. */ | |
| int32_t lock; | |
| /* Could add a ID for locking and unlocking. In this could protect against any function being able to unlock. */ | |
| } bsp_lock_t; | |
| /*********************************************************************************************************************** | |
| Exported global variables | |
| ***********************************************************************************************************************/ | |
| /*********************************************************************************************************************** | |
| Exported global functions (to be accessed by other files) | |
| ***********************************************************************************************************************/ | |
| bool R_BSP_Lock(bsp_lock_t * plock); | |
| bool R_BSP_Unlock(bsp_lock_t * plock); | |