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Diffstat (limited to 'cpu/ixp/npe/include/IxDmaAcc.h')
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1 files changed, 260 insertions, 0 deletions
diff --git a/cpu/ixp/npe/include/IxDmaAcc.h b/cpu/ixp/npe/include/IxDmaAcc.h new file mode 100644 index 0000000..53d2625 --- /dev/null +++ b/cpu/ixp/npe/include/IxDmaAcc.h @@ -0,0 +1,260 @@ +/** + * @file IxDmaAcc.h + * + * @date 15 October 2002 + * + * @brief API of the IXP400 DMA Access Driver Component (IxDma) + * + * + * @par + * IXP400 SW Release version 2.0 + * + * -- Copyright Notice -- + * + * @par + * Copyright 2001-2005, Intel Corporation. + * All rights reserved. + * + * @par + * 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. + * 3. Neither the name of the Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * @par + * 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. + * + * @par + * -- End of Copyright Notice -- + */ + +/*--------------------------------------------------------------------- + Doxygen group definitions + ---------------------------------------------------------------------*/ + +#ifndef IXDMAACC_H +#define IXDMAACC_H + +#include "IxOsal.h" +#include "IxNpeDl.h" +/** + * @defgroup IxDmaTypes IXP400 DMA Types (IxDmaTypes) + * @brief The common set of types used in the DMA component + * @{ + */ + +/** + * @ingroup IxDmaTypes + * @enum IxDmaReturnStatus + * @brief Dma return status definitions + */ +typedef enum +{ + IX_DMA_SUCCESS = IX_SUCCESS, /**< DMA Transfer Success */ + IX_DMA_FAIL = IX_FAIL, /**< DMA Transfer Fail */ + IX_DMA_INVALID_TRANSFER_WIDTH, /**< Invalid transfer width */ + IX_DMA_INVALID_TRANSFER_LENGTH, /**< Invalid transfer length */ + IX_DMA_INVALID_TRANSFER_MODE, /**< Invalid transfer mode */ + IX_DMA_INVALID_ADDRESS_MODE, /**< Invalid address mode */ + IX_DMA_REQUEST_FIFO_FULL /**< DMA request queue is full */ +} IxDmaReturnStatus; + +/** + * @ingroup IxDmaTypes + * @enum IxDmaTransferMode + * @brief Dma transfer mode definitions + * @note Copy and byte swap, and copy and reverse modes only support multiples of word data length. + */ +typedef enum +{ + IX_DMA_COPY_CLEAR = 0, /**< copy and clear source*/ + IX_DMA_COPY, /**< copy */ + IX_DMA_COPY_BYTE_SWAP, /**< copy and byte swap (endian) */ + IX_DMA_COPY_REVERSE, /**< copy and reverse */ + IX_DMA_TRANSFER_MODE_INVALID /**< Invalid transfer mode */ +} IxDmaTransferMode; + +/** + * @ingroup IxDmaTypes + * @enum IxDmaAddressingMode + * @brief Dma addressing mode definitions + * @note Fixed source address to fixed destination address addressing mode is not supported. + */ +typedef enum +{ + IX_DMA_INC_SRC_INC_DST = 0, /**< Incremental source address to incremental destination address */ + IX_DMA_INC_SRC_FIX_DST, /**< Incremental source address to incremental destination address */ + IX_DMA_FIX_SRC_INC_DST, /**< Incremental source address to incremental destination address */ + IX_DMA_FIX_SRC_FIX_DST, /**< Incremental source address to incremental destination address */ + IX_DMA_ADDRESSING_MODE_INVALID /**< Invalid Addressing Mode */ +} IxDmaAddressingMode; + +/** + * @ingroup IxDmaTypes + * @enum IxDmaTransferWidth + * @brief Dma transfer width definitions + * @Note Fixed addresses (either source or destination) do not support burst transfer width. + */ +typedef enum +{ + IX_DMA_32_SRC_32_DST = 0, /**< 32-bit src to 32-bit dst */ + IX_DMA_32_SRC_16_DST, /**< 32-bit src to 16-bit dst */ + IX_DMA_32_SRC_8_DST, /**< 32-bit src to 8-bit dst */ + IX_DMA_16_SRC_32_DST, /**< 16-bit src to 32-bit dst */ + IX_DMA_16_SRC_16_DST, /**< 16-bit src to 16-bit dst */ + IX_DMA_16_SRC_8_DST, /**< 16-bit src to 8-bit dst */ + IX_DMA_8_SRC_32_DST, /**< 8-bit src to 32-bit dst */ + IX_DMA_8_SRC_16_DST, /**< 8-bit src to 16-bit dst */ + IX_DMA_8_SRC_8_DST, /**< 8-bit src to 8-bit dst */ + IX_DMA_8_SRC_BURST_DST, /**< 8-bit src to burst dst - Not supported for fixed destination address */ + IX_DMA_16_SRC_BURST_DST, /**< 16-bit src to burst dst - Not supported for fixed destination address */ + IX_DMA_32_SRC_BURST_DST, /**< 32-bit src to burst dst - Not supported for fixed destination address */ + IX_DMA_BURST_SRC_8_DST, /**< burst src to 8-bit dst - Not supported for fixed source address */ + IX_DMA_BURST_SRC_16_DST, /**< burst src to 16-bit dst - Not supported for fixed source address */ + IX_DMA_BURST_SRC_32_DST, /**< burst src to 32-bit dst - Not supported for fixed source address*/ + IX_DMA_BURST_SRC_BURST_DST, /**< burst src to burst dst - Not supported for fixed source and destination address +*/ + IX_DMA_TRANSFER_WIDTH_INVALID /**< Invalid transfer width */ +} IxDmaTransferWidth; + +/** + * @ingroup IxDmaTypes + * @enum IxDmaNpeId + * @brief NpeId numbers to identify NPE A, B or C + */ +typedef enum +{ + IX_DMA_NPEID_NPEA = 0, /**< Identifies NPE A */ + IX_DMA_NPEID_NPEB, /**< Identifies NPE B */ + IX_DMA_NPEID_NPEC, /**< Identifies NPE C */ + IX_DMA_NPEID_MAX /**< Total Number of NPEs */ +} IxDmaNpeId; +/* @} */ +/** + * @defgroup IxDmaAcc IXP400 DMA Access Driver (IxDmaAcc) API + * + * @brief The public API for the IXP400 IxDmaAcc component + * + * @{ + */ + +/** + * @ingroup IxDmaAcc + * @brief DMA Request Id type + */ +typedef UINT32 IxDmaAccRequestId; + +/** + * @ingroup IxDmaAcc + * @def IX_DMA_REQUEST_FULL + * @brief DMA request queue is full + * This constant is a return value used to tell the user that the IxDmaAcc + * queue is full. + * + */ +#define IX_DMA_REQUEST_FULL 16 + +/** + * @ingroup IxDmaAcc + * @brief DMA completion notification + * This function is called to notify a client that the DMA has been completed + * @param status @ref IxDmaReturnStatus [out] - reporting to client + * + */ +typedef void (*IxDmaAccDmaCompleteCallback) (IxDmaReturnStatus status); + +/** + * @ingroup IxDmaAcc + * + * @fn ixDmaAccInit(IxNpeDlNpeId npeId) + * + * @brief Initialise the DMA Access component + * This function will initialise the DMA Access component internals + * @param npeId @ref IxNpeDlNpeId [in] - NPE to use for Dma Transfer + * @return @li IX_SUCCESS succesfully initialised the component + * @return @li IX_FAIL Initialisation failed for some unspecified + * internal reason. + */ +PUBLIC IX_STATUS +ixDmaAccInit(IxNpeDlNpeId npeId); + +/** + * @ingroup IxDmaAcc + * + * @fn ixDmaAccDmaTransfer( + IxDmaAccDmaCompleteCallback callback, + UINT32 SourceAddr, + UINT32 DestinationAddr, + UINT16 TransferLength, + IxDmaTransferMode TransferMode, + IxDmaAddressingMode AddressingMode, + IxDmaTransferWidth TransferWidth) + * + * @brief Perform DMA transfer + * This function will perform DMA transfer between devices within the + * IXP400 memory map. + * @note The following are restrictions for IxDmaAccDmaTransfer: + * @li The function is non re-entrant. + * @li The function assumes host devices are operating in big-endian mode. + * @li Fixed address does not suport burst transfer width + * @li Fixed source address to fixed destinatiom address mode is not suported + * @li The incrementing source address for expansion bus will not support a burst transfer width and copy and clear mode + * + * @param callback @ref IxDmaAccDmaCompleteCallback [in] - function pointer to be stored and called when the DMA transfer is completed. This cannot be NULL. + * @param SourceAddr UINT32 [in] - Starting address of DMA source. Must be a valid IXP400 memory map address. + * @param DestinationAddr UINT32 [in] - Starting address of DMA destination. Must be a valid IXP400 memory map address. + * @param TransferLength UINT16 [in] - The size of DMA data transfer. The range must be from 1-64Kbyte + * @param TransferMode @ref IxDmaTransferMode [in] - The DMA transfer mode + * @param AddressingMode @ref IxDmaAddressingMode [in] - The DMA addressing mode + * @param TransferWidth @ref IxDmaTransferWidth [in] - The DMA transfer width + * + * @return @li IX_DMA_SUCCESS Notification that the DMA request is succesful + * @return @li IX_DMA_FAIL IxDmaAcc not yet initialised or some internal error has occured + * @return @li IX_DMA_INVALID_TRANSFER_WIDTH Transfer width is nit valid + * @return @li IX_DMA_INVALID_TRANSFER_LENGTH Transfer length outside of valid range + * @return @li IX_DMA_INVALID_TRANSFER_MODE Transfer Mode not valid + * @return @li IX_DMA_REQUEST_FIFO_FULL IxDmaAcc request queue is full + */ +PUBLIC IxDmaReturnStatus +ixDmaAccDmaTransfer( + IxDmaAccDmaCompleteCallback callback, + UINT32 SourceAddr, + UINT32 DestinationAddr, + UINT16 TransferLength, + IxDmaTransferMode TransferMode, + IxDmaAddressingMode AddressingMode, + IxDmaTransferWidth TransferWidth); +/** + * @ingroup IxDmaAcc + * + * @fn ixDmaAccShow(void) + * + * @brief Display some component information for debug purposes + * Show some internal operation information relating to the DMA service. + * At a minimum the following will show. + * - the number of the DMA pend (in queue) + * @param None + * @return @li None + */ +PUBLIC IX_STATUS +ixDmaAccShow(void); + +#endif /* IXDMAACC_H */ + |