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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)

#if defined(at91sam9m10) || defined(at91sam9m11) || defined(at91sam3u4)

    #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

    #define AT91C_SRC_REP  AT91C_HDMA_SRC_REP

    #define AT91C_DST_REP  AT91C_HDMA_DST_REP

    #define AT91C_SRC_PIP  AT91C_HDMA_SRC_PIP

    #define AT91C_DST_PIP  AT91C_HDMA_DST_PIP

    #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_DisableChannel(unsigned int channel);

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);

extern void DMA_SPIPconfiguration(unsigned char channel,

                     unsigned int pipHole, unsigned int pipBoundary);

extern void DMA_DPIPconfiguration(unsigned char channel,

                     unsigned int pipHole, unsigned int pipBoundary);

#endif //#ifndef DMA_H