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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support - ROUSSET -
* ----------------------------------------------------------------------------
* Copyright (c) 2006, Atmel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaiimer below.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the disclaimer below in the documentation and/or
* other materials provided with the distribution.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \dir
/// !Purpose
///
/// Interface for configuration the %DMA controller(DMAC).
///
/// !Usage
///
/// -# Enable or disable the a DMAC controller with
/// DMA_Enable() and or DMA_Disable().
/// -# Enable or disable %Dma interrupt using DMA_EnableIt()
/// or DMA_DisableIt().
/// -# Get %Dma interrupt status by DMA_GetStatus().
/// -# Enable or disable specified %Dma channel with
/// DMA_EnableChannel() or DMA_DisableChannel().
/// -# Get %Dma channel status by DMA_GetChannelStatus().
/// -# Configure source and/or destination start address with
/// DMA_SetSourceAddr() and/or DMA_SetDestAddr().
/// -# Set %Dma descriptor address using DMA_SetDescriptorAddr().
/// -# Set source transfer buffer size with DMA_SetSourceBufferSize().
/// -# Configure source and/or destination transfer mode with
/// DMA_SetSourceBufferMode() and/or DMA_SetDestBufferMode().
/// -# Configure source and/or destination Picture-In-Picutre
/// mode with DMA_SPIPconfiguration() and/or DMA_DPIPconfiguration().
//------------------------------------------------------------------------------
#ifndef DMA_H
#define DMA_H
#include <board.h>
//------------------------------------------------------------------------------
// Definitions
//------------------------------------------------------------------------------
#define DMA_CHANNEL_0 0
#define DMA_CHANNEL_1 1
#define DMA_CHANNEL_2 2
#define DMA_CHANNEL_3 3
#define DMA_CHANNEL_4 4
#define DMA_CHANNEL_5 5
#define DMA_CHANNEL_6 6
#define DMA_CHANNEL_7 7
#if defined(CHIP_DMA_CHANNEL_NUM)
#define DMA_CHANNEL_NUM CHIP_DMA_CHANNEL_NUM
#endif
#define DMA_TRANSFER_SINGLE 0
#define DMA_TRANSFER_LLI 1
#define DMA_TRANSFER_RELOAD 2
#define DMA_TRANSFER_CONTIGUOUS 3
#define DMA_ENA (1 << 0)
#define DMA_DIS (1 << 0)
#define DMA_SUSP (1 << 8)
#define DMA_KEEPON (1 << 24)
#define DMA_BTC (1 << 0)
#define DMA_CBTC (1 << 8)
#define DMA_ERR (1 << 16)
#ifdef AT91C_HDMA_SRC_DSCR
#define AT91C_SRC_DSCR AT91C_HDMA_SRC_DSCR
#define AT91C_DST_DSCR AT91C_HDMA_DST_DSCR
#define AT91C_SRC_INCR AT91C_HDMA_SRC_ADDRESS_MODE
#define AT91C_DST_INCR AT91C_HDMA_DST_ADDRESS_MODE
#define AT91C_SRC_PER AT91C_HDMA_SRC_PER
#define AT91C_DST_PER AT91C_HDMA_DST_PER
#if defined(AT91C_HDMA_SRC_REP)
#define AT91C_SRC_REP AT91C_HDMA_SRC_REP
#endif
#if defined(AT91C_HDMA_DST_REP)
#define AT91C_DST_REP AT91C_HDMA_DST_REP
#endif
#if defined(AT91C_HDMA_SRC_PIP)
#define AT91C_SRC_PIP AT91C_HDMA_SRC_PIP
#endif
#if defined(AT91C_HDMA_DST_PIP)
#define AT91C_DST_PIP AT91C_HDMA_DST_PIP
#endif
#define AT91C_FC AT91C_HDMA_FC
#define AT91C_BTC (0xFF << 0)
#define AT91C_CBTC (0xFF << 8)
#define AT91C_ERR (0xFF << 16)
#endif
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern void DMA_Config(unsigned int flag);
extern void DMA_Enable(void);
extern void DMA_Disable(void);
extern void DMA_EnableChannel(unsigned int channel);
extern void DMA_EnableChannels(unsigned int bmChannels);
extern void DMA_DisableChannel(unsigned int channel);
extern void DMA_DisableChannels(unsigned int bmChannels);
extern void DMA_KeeponChannel(unsigned int channel);
extern void DMA_ClearAutoMode(unsigned int channel);
extern unsigned int DMA_GetChannelStatus(void);
extern unsigned int DMA_GetStatus(void);
extern unsigned int DMA_GetInterruptMask(void);
extern unsigned int DMA_GetMaskedStatus(void);
extern void DMA_EnableIt (unsigned int flag);
extern void DMA_DisableIt (unsigned int flag);
extern void DMA_SetSourceAddr(unsigned char channel, unsigned int address);
extern void DMA_SetDestinationAddr(unsigned char channel, unsigned int address);
extern void DMA_SetDescriptorAddr(unsigned char channel, unsigned int address);
extern void DMA_SetSourceBufferSize(unsigned char channel,
unsigned int size,
unsigned char sourceWidth,
unsigned char desDMAdth,
unsigned char done);
extern void DMA_SetSourceBufferMode(unsigned char channel,
unsigned char transferMode,
unsigned char addressingType);
extern void DMA_SetDestBufferMode(unsigned char channel,
unsigned char transferMode,
unsigned char addressingType);
extern void DMA_SetConfiguration(unsigned char channel, unsigned int value);
#if defined(AT91C_SRC_PIP)
extern void DMA_SPIPconfiguration(unsigned char channel,
unsigned int pipHole, unsigned int pipBoundary);
#endif
#if defined(AT91C_DST_PIP)
extern void DMA_DPIPconfiguration(unsigned char channel,
unsigned int pipHole, unsigned int pipBoundary);
#endif
extern void DMA_SetFlowControl(unsigned char channel,
unsigned int flow);
#endif //#ifndef DMA_H
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