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