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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright © 2008 Rafaël Carré
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h" /* for INIT_ATTR */
#include <stdbool.h>
#include <stdlib.h>
/* DMA request lines (16 max): not specified in AS3525 datasheet, but common to
* all AS3525 based models (made by SanDisk) supported by rockbox. */
#define DMA_PERI_SSP 0
#define DMA_PERI_SD_SLOT 2
#define DMA_PERI_I2SOUT 3
#define DMA_PERI_I2SIN 4
#define DMA_PERI_SD 5 /* embedded storage */
#define DMA_PERI_DBOP 8
void dma_init(void) INIT_ATTR;
void dma_enable_channel(int channel, void *src, void *dst, int peri,
int flow_controller, bool src_inc, bool dst_inc,
size_t size, int nwords, void (*callback)(void));
inline void dma_disable_channel(int channel);
void dma_retain(void);
void dma_release(void);
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