linux/sound/soc/mxs/mxs-pcm.h
Dong Aisheng ed6e1d04c1 ASoC: mxs: add mxs-pcm driver
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-28 11:47:22 +01:00

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1.2 KiB
C

/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _MXS_PCM_H
#define _MXS_PCM_H
#include <mach/dma.h>
struct mxs_pcm_dma_params {
int chan_irq;
int chan_num;
};
struct mxs_pcm_runtime_data {
int period_bytes;
int periods;
int dma;
unsigned long offset;
unsigned long size;
void *buf;
int period_time;
struct dma_async_tx_descriptor *desc;
struct dma_chan *dma_chan;
struct mxs_dma_data dma_data;
struct mxs_pcm_dma_params *dma_params;
};
#endif