summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c')
-rw-r--r--c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c
deleted file mode 100644
index 9dc3d3db79..0000000000
--- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/afe_dma.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/* ---------------------------------------------------------------------------- */
-/* Atmel Microcontroller Software Support */
-/* SAM Software Package License */
-/* ---------------------------------------------------------------------------- */
-/* Copyright (c) 2015, Atmel Corporation */
-/* */
-/* All rights reserved. */
-/* */
-/* Redistribution and use in source and binary forms, with or without */
-/* modification, are permitted provided that the following condition is met: */
-/* */
-/* - Redistributions of source code must retain the above copyright notice, */
-/* this list of conditions and the disclaimer below. */
-/* */
-/* 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. */
-/* ---------------------------------------------------------------------------- */
-
-/** \addtogroup afe_dma_module Working with AFE (DMA support)
- * \ingroup peripherals_module
- * The afec driver provides the interface to configure and use the afecC
- * peripheral with DMA support.\n
- *
- * For more accurate information, please look at the AFEC section of the
- * Datasheet.
- *
- * Related files :\n
- * \ref afe_dma.c\n
- * \ref afe_dma.h\n
- */
-/*@{*/
-/*@}*/
-/**
- * \file
- *
- *
- */
-/*----------------------------------------------------------------------------
- * Headers
- *----------------------------------------------------------------------------*/
-
-#include "chip.h"
-#include "afe_dma.h"
-#include "xdmad.h"
-
-#include <stdint.h>
-#include <assert.h>
-
-/* DMA driver instance */
-static uint32_t afeDmaRxChannel;
-
-/*----------------------------------------------------------------------------
- * Local functions
- *----------------------------------------------------------------------------*/
-
-/**
- * \brief AFE xDMA Rx callback
- * Invoked on AFE DMA reception done.
- * \param channel DMA channel.
- * \param pArg Pointer to callback argument - Pointer to AfeDma instance.
- */
-static void Afe_Rx_Cb(uint32_t channel, AfeDma *pArg)
-{
- AfeCmd *pAfedCmd = pArg->pCurrentCommand;
-
- if (channel != afeDmaRxChannel)
- return;
-
- /* Configure and enable interrupt on RC compare */
- NVIC_ClearPendingIRQ(XDMAC_IRQn);
- NVIC_DisableIRQ(XDMAC_IRQn);
-
- /* Release the DMA channels */
- XDMAD_FreeChannel(pArg->pXdmad, afeDmaRxChannel);
- SCB_InvalidateDCache_by_Addr(pAfedCmd->pRxBuff, pAfedCmd->RxSize);
- /* Release the dataflash semaphore */
- pArg->semaphore++;
-
- /* Invoke the callback associated with the current command */
- if (pAfedCmd && pAfedCmd->callback)
- pAfedCmd->callback(0, pAfedCmd->pArgument);
-}
-
-/**
- * \brief Configure the DMA Channels: 0 RX.
- * Channels are disabled after configure.
- * \param pXdmad Pointer to a AfeDma instance
- * \returns 0 if the dma channel configuration successfully; otherwise returns
- * AFE_ERROR_XXX.
- */
-static uint8_t _AfeConfigureDmaChannels(AfeDma *pAfed)
-{
-
- /* Driver initialize */
- XDMAD_FreeChannel(pAfed->pXdmad, afeDmaRxChannel);
-
- /* Allocate a DMA channel for AFE0/1 RX. */
- afeDmaRxChannel =
- XDMAD_AllocateChannel(pAfed->pXdmad, pAfed->afeId, XDMAD_TRANSFER_MEMORY);
-
- if (afeDmaRxChannel == XDMAD_ALLOC_FAILED)
- return AFE_ERROR;
-
- /* Setup callbacks for AFE0/1 RX */
- XDMAD_SetCallback(pAfed->pXdmad, afeDmaRxChannel,
- (XdmadTransferCallback)Afe_Rx_Cb, pAfed);
-
- if (XDMAD_PrepareChannel(pAfed->pXdmad, afeDmaRxChannel))
- return AFE_ERROR;
-
- return AFE_OK;
-}
-
-/**
- * \brief Configure the DMA source and destination with Linker List mode.
- * \param pXdmad Pointer to a AfeDma instance
- * \param pCommand Pointer to AfeCmd instance
- * \param AfeCmd Pointer to command
- */
-
-static uint8_t _Afe_configureLinkList(Afec *pAfeHw, void *pXdmad,
- AfeCmd *pCommand)
-{
- uint32_t xdmaCndc, xdmaInt;
- sXdmadCfg xdmadRxCfg;
- uint32_t afeId;
-
- if ((unsigned int)pAfeHw == (unsigned int)AFEC0) afeId = ID_AFEC0;
-
- if ((unsigned int)pAfeHw == (unsigned int)AFEC1) afeId = ID_AFEC1;
-
- /* Setup RX Link List */
- xdmadRxCfg.mbr_ubc = XDMA_UBC_NVIEW_NDV0 |
- XDMA_UBC_NDE_FETCH_DIS |
- XDMA_UBC_NDEN_UPDATED |
- pCommand->RxSize;
-
- xdmadRxCfg.mbr_da = (uint32_t)pCommand->pRxBuff;
- xdmadRxCfg.mbr_sa = (uint32_t) & (pAfeHw->AFEC_LCDR);
- xdmadRxCfg.mbr_cfg = XDMAC_CC_TYPE_PER_TRAN |
- XDMAC_CC_MBSIZE_SINGLE |
- XDMAC_CC_DSYNC_PER2MEM |
- XDMAC_CC_CSIZE_CHK_1 |
- XDMAC_CC_DWIDTH_WORD |
- XDMAC_CC_SIF_AHB_IF1 |
- XDMAC_CC_DIF_AHB_IF1 |
- XDMAC_CC_SAM_FIXED_AM |
- XDMAC_CC_DAM_INCREMENTED_AM |
- XDMAC_CC_PERID(
- XDMAIF_Get_ChannelNumber(afeId, XDMAD_TRANSFER_RX));
-
- xdmadRxCfg.mbr_bc = 0;
- xdmadRxCfg.mbr_sus = 0;
- xdmadRxCfg.mbr_dus = 0;
-
- xdmaInt = (XDMAC_CIE_BIE |
- XDMAC_CIE_DIE |
- XDMAC_CIE_FIE |
- XDMAC_CIE_RBIE |
- XDMAC_CIE_WBIE |
- XDMAC_CIE_ROIE);
- xdmaCndc = 0;
-
- if (XDMAD_ConfigureTransfer(pXdmad, afeDmaRxChannel,
- &xdmadRxCfg, xdmaCndc, 0, xdmaInt))
- return AFE_ERROR;
-
- return AFE_OK;
-}
-
-/*----------------------------------------------------------------------------
- * Exported functions
- *----------------------------------------------------------------------------*/
-
-
-/**
- * \brief Initializes the AfeDma structure and the corresponding AFE & DMA .
- * hardware select value.
- * The driver will uses DMA channel 0 for RX .
- * The DMA channels are freed automatically when no DMA command processing.
- *
- * \param pAfed Pointer to a AfeDma instance.
- * \param pAfeHw Associated Afe peripheral.
- * \param AfeId Afe peripheral identifier.
- * \param pDmad Pointer to a Dmad instance.
- */
-uint32_t Afe_ConfigureDma(AfeDma *pAfed ,
- Afec *pAfeHw ,
- uint8_t AfeId,
- sXdmad *pXdmad)
-{
- /* Initialize the Afe structure */
- pAfed->pAfeHw = pAfeHw;
- pAfed->afeId = AfeId;
- pAfed->semaphore = 1;
- pAfed->pCurrentCommand = 0;
- assert(pXdmad == &XDMAD_Instance);
- pAfed->pXdmad = pXdmad;
- return 0;
-}
-
-/**
- * \brief Starts a AFE transfer. This is a non blocking function. It will
- * return as soon as the transfer is started.
- *
- * \param pAfed Pointer to a AfeDma instance.
- * \param pCommand Pointer to the Afe command to execute.
- * \returns 0 if the transfer has been started successfully; otherwise returns
- * AFE_ERROR_LOCK is the driver is in use, or AFE_ERROR if the command is not
- * valid.
- */
-uint32_t Afe_SendData(AfeDma *pAfed, AfeCmd *pCommand)
-{
- Afec *pAfeHw = pAfed->pAfeHw;
-
- /* Try to get the dataflash semaphore */
- if (pAfed->semaphore == 0)
-
- return AFE_ERROR_LOCK;
-
- pAfed->semaphore--;
-
- // Initialize the callback
- pAfed->pCurrentCommand = pCommand;
-
- /* Initialize DMA controller using channel 0 for RX. */
- if (_AfeConfigureDmaChannels(pAfed))
- return AFE_ERROR_LOCK;
-
- /* Configure and enable interrupt on RC compare */
- NVIC_ClearPendingIRQ(XDMAC_IRQn);
- NVIC_SetPriority(XDMAC_IRQn , 1);
- NVIC_EnableIRQ(XDMAC_IRQn);
-
- if (_Afe_configureLinkList(pAfeHw, pAfed->pXdmad, pCommand))
- return AFE_ERROR_LOCK;
-
- AFEC_StartConversion(pAfeHw);
-
- /* Start DMA 0(RX) */
- if (XDMAD_StartTransfer(pAfed->pXdmad, afeDmaRxChannel))
- return AFE_ERROR_LOCK;
-
- return AFE_OK;;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 08:21:19 +0000