/* ---------------------------------------------------------------------------- * 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 //------------------------------------------------------------------------------ // 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