sound/soc/mxs/mxs-pcm.h

   1 /*
   2  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
   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 as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef _MXS_PCM_H
  20 #define _MXS_PCM_H
  21
  22 #include <mach/dma.h>
  23
  24 struct mxs_pcm_dma_params {
  25         int chan_irq;
  26         int chan_num;
  27 };
  28
  29 struct mxs_pcm_runtime_data {
  30         int period_bytes;
  31         int periods;
  32         int dma;
  33         unsigned long offset;
  34         unsigned long size;
  35         void *buf;
  36         int period_time;
  37         struct dma_async_tx_descriptor *desc;
  38         struct dma_chan *dma_chan;
  39         struct mxs_dma_data dma_data;
  40         struct mxs_pcm_dma_params *dma_params;
  41 };
  42
  43 #endif