/* * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved. * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __LOS_VM_IOMAP_H__ #define __LOS_VM_IOMAP_H__ #include "los_typedef.h" #include "los_vm_zone.h" #ifdef __cplusplus #if __cplusplus extern "C" { #endif /* __cplusplus */ #endif /* __cplusplus */ enum DmaMemType { DMA_CACHE, DMA_NOCACHE }; #define IS_PERIPH_ADDR(addr) (((addr) >= U32_C(PERIPH_PMM_BASE)) && ((addr) <= U32_C(PERIPH_PMM_BASE) + U32_C(PERIPH_PMM_SIZE))) #define IS_MEMORY_ADDR(addr) (((addr) >= U32_C(DDR_MEM_ADDR)) && ((addr) <= U32_C(DDR_MEM_ADDR) + U32_C(DDR_MEM_SIZE))) /* thread safety */ VOID *LOS_DmaMemAlloc(DMA_ADDR_T *dmaAddr, size_t size, size_t align, enum DmaMemType type); VOID LOS_DmaMemFree(VOID *vaddr); DMA_ADDR_T LOS_DmaVaddrToPaddr(VOID *vaddr); #ifdef __cplusplus #if __cplusplus } #endif /* __cplusplus */ #endif /* __cplusplus */ #endif /* __LOS_VM_IOMAP_H__ */