/****************************************************************************** * Copyright (c) 2022 Telink Semiconductor (Shanghai) Co., Ltd. ("TELINK") * All rights reserved. * * 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 * * http://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. * *****************************************************************************/ /*************************************************************************************************/ /*! * \file my_heap.c * * \brief Heap service. * * Copyright (c) 2009-2018 Arm Ltd. All Rights Reserved. * * Copyright (c) 2019-2020 Packetcraft, Inc. * * 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 * * http://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. */ /*************************************************************************************************/ #include "common\compiler.h" #include "common\types.h" /************************************************************************************************** Macros **************************************************************************************************/ #define HEAP_MEM_SIZE_CFG 3072 // 3K Heap /************************************************************************************************** Global Variables **************************************************************************************************/ /* ! Free memory for pool buffers. */ _attribute_data_retention_ static u8 myBufMem[HEAP_MEM_SIZE_CFG]; _attribute_data_retention_ static u8 *SystemHeapStart = myBufMem; _attribute_data_retention_ static u32 SystemHeapSize = HEAP_MEM_SIZE_CFG; /* ! * \brief Reserve heap memory. * * \param size Number of bytes of heap memory used. */ void myHeapAlloc(u32 size) { /* Round up to nearest multiple of 4 for word alignment */ size = (size + 3) & ~3; SystemHeapStart += size; SystemHeapSize -= size; } /*! * \brief Get next available heap memory. * * \return Address of the start of heap memory. */ void *myHeapGetFreeStartAddress(void) { return (void *)SystemHeapStart; } /* ! * \brief Get heap available. * * \return Number of bytes of heap memory available. */ u32 myHeapCountAvailable(void) { return SystemHeapSize; } /* ! * \brief Get heap used. * * \return Number of bytes of heap memory used. */ u32 myHeapCountUsed(void) { return HEAP_MEM_SIZE_CFG - SystemHeapSize; }