dma.h

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/*
 * Copyright (c) 2008, 2009
 * embedded brains GmbH
 * Obere Lagerstr. 30
 * D-82178 Puchheim
 * Germany
 * <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef LIBBSP_ARM_LPC176X_DMA_H
#define LIBBSP_ARM_LPC176X_DMA_H

#include <rtems.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

void lpc176x_dma_initialize( void );

rtems_status_code lpc176x_dma_channel_obtain( unsigned channel );

void lpc176x_dma_channel_release( unsigned channel );

void lpc176x_dma_channel_disable(
  unsigned channel,
  bool     force
);

rtems_status_code lpc176x_dma_copy_initialize( void );

rtems_status_code lpc176x_dma_copy_release( void );

rtems_status_code lpc176x_dma_copy(
  unsigned    channel,
  const void *dest,
  const void *src,
  size_t      n,
  size_t      width
);

rtems_status_code lpc176x_dma_copy_wait( unsigned channel );

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* LIBBSP_ARM_LPC176X_DMA_H */