1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2015, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 */ 15 16 #ifndef __DMA_PUBLIC_H_INCLUDED__ 17 #define __DMA_PUBLIC_H_INCLUDED__ 18 19 #include "system_local.h" 20 21 /*! Write to a control register of DMA[ID] 22 23 \param ID[in] DMA identifier 24 \param reg[in] register index 25 \param value[in] The data to be written 26 27 \return none, DMA[ID].ctrl[reg] = value 28 */ 29 STORAGE_CLASS_DMA_H void dma_reg_store( 30 const dma_ID_t ID, 31 const unsigned int reg, 32 const hrt_data value); 33 34 /*! Read from a control register of DMA[ID] 35 36 \param ID[in] DMA identifier 37 \param reg[in] register index 38 \param value[in] The data to be written 39 40 \return DMA[ID].ctrl[reg] 41 */ 42 STORAGE_CLASS_DMA_H hrt_data dma_reg_load( 43 const dma_ID_t ID, 44 const unsigned int reg); 45 46 /*! Set maximum burst size of DMA[ID] 47 48 \param ID[in] DMA identifier 49 \param conn[in] Connection to set max burst size for 50 \param max_burst_size[in] Maximum burst size in words 51 52 \return none 53 */ 54 void 55 dma_set_max_burst_size( 56 dma_ID_t ID, 57 dma_connection conn, 58 uint32_t max_burst_size); 59 60 #endif /* __DMA_PUBLIC_H_INCLUDED__ */ 61