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kernel/linux-rt-4.4.41/include/linux/pch_dma.h 999 Bytes
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  /*
   * 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.
   */
  
  #ifndef PCH_DMA_H
  #define PCH_DMA_H
  
  #include <linux/dmaengine.h>
  
  enum pch_dma_width {
  	PCH_DMA_WIDTH_1_BYTE,
  	PCH_DMA_WIDTH_2_BYTES,
  	PCH_DMA_WIDTH_4_BYTES,
  };
  
  struct pch_dma_slave {
  	struct device		*dma_dev;
  	unsigned int		chan_id;
  	dma_addr_t		tx_reg;
  	dma_addr_t		rx_reg;
  	enum pch_dma_width	width;
  };
  
  #endif