LXR linux/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
  24struct mxs_pcm_dma_params {
  25        int chan_irq;
  26        int chan_num;
  27};
  28
  29struct 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
  44