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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* RTEMS generic mcf548x BSP
*
* This file declares glue functions to the Freescale Mcdma API.
*/
/*
* Copyright (C) 2004, 2009 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#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 */
|
