Edit File: timb_dma.h
/* * timb_dma.h timberdale FPGA DMA driver defines * Copyright (c) 2010 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: * Timberdale FPGA DMA engine */ #ifndef _LINUX_TIMB_DMA_H #define _LINUX_TIMB_DMA_H /** * struct timb_dma_platform_data_channel - Description of each individual * DMA channel for the timberdale DMA driver * @rx: true if this channel handles data in the direction to * the CPU. * @bytes_per_line: Number of bytes per line, this is specific for channels * handling video data. For other channels this shall be left to 0. * @descriptors: Number of descriptors to allocate for this channel. * @descriptor_elements: Number of elements in each descriptor. * */ struct timb_dma_platform_data_channel { bool rx; unsigned int bytes_per_line; unsigned int descriptors; unsigned int descriptor_elements; }; /** * struct timb_dma_platform_data - Platform data of the timberdale DMA driver * @nr_channels: Number of defined channels in the channels array. * @channels: Definition of the each channel. * */ struct timb_dma_platform_data { unsigned nr_channels; struct timb_dma_platform_data_channel channels[32]; }; #endif