sound/soc/omap/omap-pcm.h

   1 /*
   2  * omap-pcm.h
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  *
   6  * Contact: Jarkko Nikula <jarkko.nikula@bitmer.com>
   7  *          Peter Ujfalusi <peter.ujfalusi@ti.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __OMAP_PCM_H__
  26 #define __OMAP_PCM_H__
  27
  28 struct snd_pcm_substream;
  29
  30 struct omap_pcm_dma_data {
  31         char            *name;          /* stream identifier */
  32         int             dma_req;        /* DMA request line */
  33         unsigned long   port_addr;      /* transmit/receive register */
  34         void (*set_threshold)(struct snd_pcm_substream *substream);
  35         int             data_type;      /* 8, 16, 32 (bits) or 0 to let omap-pcm
  36                                          * to decide the sDMA data type */
  37         int             packet_size;    /* packet size only in PACKET mode */
  38 };
  39
  40 #endif