include/linux/pch_dma.h

   1 /*
   2  * Copyright (c) 2010 Intel Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  16  */
  17
  18 #ifndef PCH_DMA_H
  19 #define PCH_DMA_H
  20
  21 #include <linux/dmaengine.h>
  22
  23 enum pch_dma_width {
  24         PCH_DMA_WIDTH_1_BYTE,
  25         PCH_DMA_WIDTH_2_BYTES,
  26         PCH_DMA_WIDTH_4_BYTES,
  27 };
  28
  29 struct pch_dma_slave {
  30         struct device           *dma_dev;
  31         unsigned int            chan_id;
  32         dma_addr_t              tx_reg;
  33         dma_addr_t              rx_reg;
  34         enum pch_dma_width      width;
  35 };
  36
  37 #endif