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/*
* RTEMS generic mcf548x BSP
*
* This file declares glue functions to the Freescale Mcdma API.
*/
/*
* Copyright (c) 2004, 2009 embedded brains GmbH. All rights reserved.
*
* 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 _MCDMA_GLUE_H
#define _MCDMA_GLUE_H
#include <rtems.h>
#include <rtems/irq.h>
#include <mcf548x/mcf548x.h>
#define MCDMA_CLR_PENDING(chan) (MCF548X_DMA_DIPR = (1 << (chan)))
#define MCDMA_GET_PENDING(chan) (MCF548X_DMA_DIPR & (1 << (chan)))
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
void mcdma_glue_irq_enable
(
/*-------------------------------------------------------------------------*\
| Purpose: |
| enable interrupt for given task number |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
int mcdma_taskno /* task number to enable */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| none |
\*=========================================================================*/
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
void mcdma_glue_irq_disable
(
/*-------------------------------------------------------------------------*\
| Purpose: |
| disable interrupt for given task number |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
int mcdma_taskno /* task number to disable */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| none |
\*=========================================================================*/
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
void mcdma_glue_irq_install
(
/*-------------------------------------------------------------------------*\
| Purpose: |
| install given function as mcdma interrupt handler |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
int mcdma_taskno, /* task number for handler */
void (*the_handler)(rtems_irq_hdl_param), /* function to call */
void *the_param
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| none |
\*=========================================================================*/
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
void mcdma_glue_init
(
/*-------------------------------------------------------------------------*\
| Purpose: |
| initialize the mcdma module (if not yet done): |
| - load code |
| - initialize registers |
| - initialize bus arbiter |
| - initialize interrupt control |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
void *sram_base /* base address for SRAM, to be used for DMA task */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| none |
\*=========================================================================*/
#endif /* _MCDMA_GLUE_H */
|
