44 lines
1.7 KiB
C
44 lines
1.7 KiB
C
/***************************************************************************
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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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* $Id$
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*
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* Copyright © 2008 Rafaël Carré
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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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#include "config.h" /* for INIT_ATTR */
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#include <stdbool.h>
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#include <stdlib.h>
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/* DMA request lines (16 max): not specified in AS3525 datasheet, but common to
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* all AS3525 based models (made by SanDisk) supported by rockbox. */
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#define DMA_PERI_SSP 0
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#define DMA_PERI_SD_SLOT 2
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#define DMA_PERI_I2SOUT 3
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#define DMA_PERI_I2SIN 4
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#define DMA_PERI_SD 5 /* embedded storage */
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#define DMA_PERI_DBOP 8
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void dma_init(void) INIT_ATTR;
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void dma_enable_channel(int channel, void *src, void *dst, int peri,
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int flow_controller, bool src_inc, bool dst_inc,
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size_t size, int nwords, void (*callback)(void));
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inline void dma_disable_channel(int channel);
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void dma_retain(void);
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void dma_release(void);
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