| /* -------------------------------------------------------------------------- |
| * Copyright (c) 2013-2020 Arm Limited. All rights reserved. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Licensed under the Apache License, Version 2.0 (the License); you may |
| * not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| * Name: freertos_mpool.h |
| * Purpose: CMSIS RTOS2 wrapper for FreeRTOS |
| * |
| *---------------------------------------------------------------------------*/ |
| |
| #ifndef FREERTOS_MPOOL_H_ |
| #define FREERTOS_MPOOL_H_ |
| |
| #include <stdint.h> |
| #include "FreeRTOS.h" |
| #include "semphr.h" |
| |
| /* Memory Pool implementation definitions */ |
| #define MPOOL_STATUS 0x5EED0000U |
| |
| /* Memory Block header */ |
| typedef struct { |
| void *next; /* Pointer to next block */ |
| } MemPoolBlock_t; |
| |
| /* Memory Pool control block */ |
| typedef struct MemPoolDef_t { |
| MemPoolBlock_t *head; /* Pointer to head block */ |
| SemaphoreHandle_t sem; /* Pool semaphore handle */ |
| uint8_t *mem_arr; /* Pool memory array */ |
| uint32_t mem_sz; /* Pool memory array size */ |
| const char *name; /* Pointer to name string */ |
| uint32_t bl_sz; /* Size of a single block */ |
| uint32_t bl_cnt; /* Number of blocks */ |
| uint32_t n; /* Block allocation index */ |
| volatile uint32_t status; /* Object status flags */ |
| #if (configSUPPORT_STATIC_ALLOCATION == 1) |
| StaticSemaphore_t mem_sem; /* Semaphore object memory */ |
| #endif |
| } MemPool_t; |
| |
| /* No need to hide static object type, just align to coding style */ |
| #define StaticMemPool_t MemPool_t |
| |
| /* Define memory pool control block size */ |
| #define MEMPOOL_CB_SIZE (sizeof(StaticMemPool_t)) |
| |
| /* Define size of the byte array required to create count of blocks of given size */ |
| #define MEMPOOL_ARR_SIZE(bl_count, bl_size) (((((bl_size) + (4 - 1)) / 4) * 4)*(bl_count)) |
| |
| #endif /* FREERTOS_MPOOL_H_ */ |