1 /* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LWIP_PORTING_PBUF_H_ 33 #define _LWIP_PORTING_PBUF_H_ 34 35 #include_next <lwip/pbuf.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 struct pbuf_dma_info { 42 void *dma; 43 void *mac_header; 44 u16_t dma_len; 45 u16_t link_len; 46 }; 47 48 #define pbuf_dma_ref(dma_info) // ERR_OK 49 #define pbuf_dma_free(dma_info) 50 51 #define dma_info payload 52 53 #ifdef __cplusplus 54 } 55 #endif 56 57 #endif /* _LWIP_PORTING_PBUF_H_ */ 58