41 lines
1.7 KiB
C
41 lines
1.7 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: system-target.h 28791 2010-12-11 09:39:33Z Buschel $
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*
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* Copyright (C) 2010 by Michael Sparmann
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __PCM_TARGET_H__
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#define __PCM_TARGET_H__
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/* S5L8702 PCM driver tunables: */
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#define PCM_LLIMAX (2047) /* Maximum number of samples per LLI */
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#define PCM_CHUNKSIZE (10747) /* Maximum number of samples to handle with one IRQ */
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/* (bigger chunks will be segmented internally) */
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#define PCM_WATERMARK (512) /* Number of remaining samples to schedule IRQ at */
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#define PCM_LLICOUNT ((PCM_CHUNKSIZE - PCM_WATERMARK + PCM_LLIMAX - 1) / PCM_LLIMAX + 1)
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extern struct dma_lli pcm_lli[PCM_LLICOUNT];
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extern size_t pcm_remaining;
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extern size_t pcm_chunksize;
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#endif /* __PCM_TARGET_H__ */
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