563 lines
21 KiB
C
563 lines
21 KiB
C
/*
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* The Clear BSD License
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* Copyright (c) 2017, NXP Semiconductors, Inc.
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* All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted (subject to the limitations in the disclaimer below) provided
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* that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FSL_CSI_H_
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#define _FSL_CSI_H_
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#include "fsl_common.h"
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/*!
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* @addtogroup csi_driver
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* @{
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*/
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*! @name Driver version */
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/*@{*/
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#define FSL_CSI_DRIVER_VERSION (MAKE_VERSION(2, 0, 0))
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/*@}*/
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/*! @brief Size of the frame buffer queue used in CSI transactional function. */
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#ifndef CSI_DRIVER_QUEUE_SIZE
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#define CSI_DRIVER_QUEUE_SIZE 4U
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#endif
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/*
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* There is one empty room in queue, used to distinguish whether the queue
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* is full or empty. When header equals tail, the queue is empty; when header
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* equals tail + 1, the queue is full.
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*/
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#define CSI_DRIVER_ACTUAL_QUEUE_SIZE (CSI_DRIVER_QUEUE_SIZE + 1U)
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/*
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* The interrupt enable bits are in registers CSICR1[16:31], CSICR3[0:7],
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* and CSICR18[2:9]. So merge them into an uint32_t value, place CSICR18 control
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* bits to [8:15].
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*/
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#define CSI_CSICR1_INT_EN_MASK 0xFFFF0000U
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#define CSI_CSICR3_INT_EN_MASK 0x000000FFU
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#define CSI_CSICR18_INT_EN_MASK 0x0000FF00U
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#if ((~CSI_CSICR1_INT_EN_MASK) & \
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(CSI_CSICR1_EOF_INT_EN_MASK | CSI_CSICR1_COF_INT_EN_MASK | CSI_CSICR1_SF_OR_INTEN_MASK | \
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CSI_CSICR1_RF_OR_INTEN_MASK | CSI_CSICR1_SFF_DMA_DONE_INTEN_MASK | CSI_CSICR1_STATFF_INTEN_MASK | \
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CSI_CSICR1_FB2_DMA_DONE_INTEN_MASK | CSI_CSICR1_FB1_DMA_DONE_INTEN_MASK | CSI_CSICR1_RXFF_INTEN_MASK | \
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CSI_CSICR1_SOF_INTEN_MASK))
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#error CSI_CSICR1_INT_EN_MASK could not cover all interrupt bits in CSICR1.
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#endif
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#if ((~CSI_CSICR3_INT_EN_MASK) & (CSI_CSICR3_ECC_INT_EN_MASK | CSI_CSICR3_HRESP_ERR_EN_MASK))
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#error CSI_CSICR3_INT_EN_MASK could not cover all interrupt bits in CSICR3.
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#endif
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#if ((~CSI_CSICR18_INT_EN_MASK) & ((CSI_CSICR18_FIELD0_DONE_IE_MASK | CSI_CSICR18_DMA_FIELD1_DONE_IE_MASK | CSI_CSICR18_BASEADDR_CHANGE_ERROR_IE_MASK) << 6U))
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#error CSI_CSICR18_INT_EN_MASK could not cover all interrupt bits in CSICR18.
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#endif
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/*! @brief Error codes for the CSI driver. */
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enum _csi_status
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{
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kStatus_CSI_NoEmptyBuffer = MAKE_STATUS(kStatusGroup_CSI, 0), /*!< No empty frame buffer in queue to load to CSI. */
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kStatus_CSI_NoFullBuffer = MAKE_STATUS(kStatusGroup_CSI, 1), /*!< No full frame buffer in queue to read out. */
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kStatus_CSI_QueueFull = MAKE_STATUS(kStatusGroup_CSI, 2), /*!< Queue is full, no room to save new empty buffer. */
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kStatus_CSI_FrameDone = MAKE_STATUS(kStatusGroup_CSI, 3), /*!< New frame received and saved to queue. */
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};
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/*!
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* @brief CSI work mode.
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*
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* The CCIR656 interlace mode is not supported currently.
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*/
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typedef enum _csi_work_mode
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{
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kCSI_GatedClockMode = CSI_CSICR1_GCLK_MODE(1U), /*!< HSYNC, VSYNC, and PIXCLK signals are used. */
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kCSI_NonGatedClockMode = 0U, /*!< VSYNC, and PIXCLK signals are used. */
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kCSI_CCIR656ProgressiveMode = CSI_CSICR1_CCIR_EN(1U), /*!< CCIR656 progressive mode. */
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} csi_work_mode_t;
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/*!
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* @brief CSI data bus witdh.
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*
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* Currently only support 8-bit width.
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*/
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typedef enum _csi_data_bus
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{
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kCSI_DataBus8Bit, /*!< 8-bit data bus. */
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} csi_data_bus_t;
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/*! @brief CSI signal polarity. */
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enum _csi_polarity_flags
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{
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kCSI_HsyncActiveLow = 0U, /*!< HSYNC is active low. */
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kCSI_HsyncActiveHigh = CSI_CSICR1_HSYNC_POL_MASK, /*!< HSYNC is active high. */
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kCSI_DataLatchOnRisingEdge = CSI_CSICR1_REDGE_MASK, /*!< Pixel data latched at rising edge of pixel clock. */
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kCSI_DataLatchOnFallingEdge = 0U, /*!< Pixel data latched at falling edge of pixel clock. */
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kCSI_VsyncActiveHigh = 0U, /*!< VSYNC is active high. */
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kCSI_VsyncActiveLow = CSI_CSICR1_SOF_POL_MASK, /*!< VSYNC is active low. */
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};
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/*! @brief Configuration to initialize the CSI module. */
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typedef struct _csi_config
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{
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uint16_t width; /*!< Pixels of the input frame. */
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uint16_t height; /*!< Lines of the input frame. */
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uint32_t polarityFlags; /*!< Timing signal polarity flags, OR'ed value of @ref _csi_polarity_flags. */
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uint8_t bytesPerPixel; /*!< Bytes per pixel, valid values are:
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- 2: Used for RGB565, YUV422, and so on.
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- 3: Used for packed RGB888, packed YUV444, and so on.
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- 4: Used for XRGB8888, XYUV444, and so on.
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*/
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uint16_t linePitch_Bytes; /*!< Frame buffer line pitch, must be 8-byte aligned. */
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csi_work_mode_t workMode; /*!< CSI work mode. */
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csi_data_bus_t dataBus; /*!< Data bus width. */
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bool useExtVsync; /*!< In CCIR656 progressive mode, set true to use external VSYNC signal, set false
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to use internal VSYNC signal decoded from SOF. */
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} csi_config_t;
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/*! @brief The CSI FIFO, used for FIFO operation. */
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typedef enum _csi_fifo
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{
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kCSI_RxFifo = (1U << 0U), /*!< RXFIFO. */
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kCSI_StatFifo = (1U << 1U), /*!< STAT FIFO. */
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kCSI_AllFifo = 0x01 | 0x02, /*!< Both RXFIFO and STAT FIFO. */
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} csi_fifo_t;
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/*! @brief CSI feature interrupt source. */
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enum _csi_interrupt_enable
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{
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kCSI_EndOfFrameInterruptEnable = CSI_CSICR1_EOF_INT_EN_MASK, /*!< End of frame interrupt enable. */
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kCSI_ChangeOfFieldInterruptEnable = CSI_CSICR1_COF_INT_EN_MASK, /*!< Change of field interrupt enable. */
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kCSI_StatFifoOverrunInterruptEnable = CSI_CSICR1_SF_OR_INTEN_MASK, /*!< STAT FIFO overrun interrupt enable. */
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kCSI_RxFifoOverrunInterruptEnable = CSI_CSICR1_RF_OR_INTEN_MASK, /*!< RXFIFO overrun interrupt enable. */
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kCSI_StatFifoDmaDoneInterruptEnable =
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CSI_CSICR1_SFF_DMA_DONE_INTEN_MASK, /*!< STAT FIFO DMA done interrupt enable. */
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kCSI_StatFifoFullInterruptEnable = CSI_CSICR1_STATFF_INTEN_MASK, /*!< STAT FIFO full interrupt enable. */
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kCSI_RxBuffer1DmaDoneInterruptEnable =
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CSI_CSICR1_FB2_DMA_DONE_INTEN_MASK, /*!< RX frame buffer 1 DMA transfer done. */
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kCSI_RxBuffer0DmaDoneInterruptEnable =
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CSI_CSICR1_FB1_DMA_DONE_INTEN_MASK, /*!< RX frame buffer 0 DMA transfer done. */
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kCSI_RxFifoFullInterruptEnable = CSI_CSICR1_RXFF_INTEN_MASK, /*!< RXFIFO full interrupt enable. */
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kCSI_StartOfFrameInterruptEnable = CSI_CSICR1_SOF_INTEN_MASK, /*!< Start of frame (SOF) interrupt enable. */
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kCSI_EccErrorInterruptEnable = CSI_CSICR3_ECC_INT_EN_MASK, /*!< ECC error detection interrupt enable. */
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kCSI_AhbResErrorInterruptEnable = CSI_CSICR3_HRESP_ERR_EN_MASK, /*!< AHB response Error interrupt enable. */
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kCSI_BaseAddrChangeErrorInterruptEnable = CSI_CSICR18_BASEADDR_CHANGE_ERROR_IE_MASK << 6U, /*!< The DMA output buffer base address
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changes before DMA completed. */
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kCSI_Field0DoneInterruptEnable = CSI_CSICR18_FIELD0_DONE_IE_MASK << 6U, /*!< Field 0 done interrupt enable. */
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kCSI_Field1DoneInterruptEnable = CSI_CSICR18_DMA_FIELD1_DONE_IE_MASK << 6U, /*!< Field 1 done interrupt enable. */
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};
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/*!
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* @brief CSI status flags.
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*
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* The following status register flags can be cleared:
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* - kCSI_EccErrorFlag
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* - kCSI_AhbResErrorFlag
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* - kCSI_ChangeOfFieldFlag
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* - kCSI_StartOfFrameFlag
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* - kCSI_EndOfFrameFlag
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* - kCSI_RxBuffer1DmaDoneFlag
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* - kCSI_RxBuffer0DmaDoneFlag
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* - kCSI_StatFifoDmaDoneFlag
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* - kCSI_StatFifoOverrunFlag
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* - kCSI_RxFifoOverrunFlag
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* - kCSI_Field0DoneFlag
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* - kCSI_Field1DoneFlag
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* - kCSI_BaseAddrChangeErrorFlag
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*/
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enum _csi_flags
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{
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kCSI_RxFifoDataReadyFlag = CSI_CSISR_DRDY_MASK, /*!< RXFIFO data ready. */
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kCSI_EccErrorFlag = CSI_CSISR_ECC_INT_MASK, /*!< ECC error detected. */
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kCSI_AhbResErrorFlag = CSI_CSISR_HRESP_ERR_INT_MASK, /*!< Hresponse (AHB bus response) Error. */
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kCSI_ChangeOfFieldFlag = CSI_CSISR_COF_INT_MASK, /*!< Change of field. */
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kCSI_Field0PresentFlag = CSI_CSISR_F1_INT_MASK, /*!< Field 0 present in CCIR mode. */
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kCSI_Field1PresentFlag = CSI_CSISR_F2_INT_MASK, /*!< Field 1 present in CCIR mode. */
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kCSI_StartOfFrameFlag = CSI_CSISR_SOF_INT_MASK, /*!< Start of frame (SOF) detected. */
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kCSI_EndOfFrameFlag = CSI_CSISR_EOF_INT_MASK, /*!< End of frame (EOF) detected. */
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kCSI_RxFifoFullFlag = CSI_CSISR_RxFF_INT_MASK, /*!< RXFIFO full (Number of data reaches trigger level). */
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kCSI_RxBuffer1DmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_FB2_MASK, /*!< RX frame buffer 1 DMA transfer done. */
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kCSI_RxBuffer0DmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_FB1_MASK, /*!< RX frame buffer 0 DMA transfer done. */
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kCSI_StatFifoFullFlag = CSI_CSISR_STATFF_INT_MASK, /*!< STAT FIFO full (Reach trigger level). */
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kCSI_StatFifoDmaDoneFlag = CSI_CSISR_DMA_TSF_DONE_SFF_MASK, /*!< STAT FIFO DMA transfer done. */
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kCSI_StatFifoOverrunFlag = CSI_CSISR_SF_OR_INT_MASK, /*!< STAT FIFO overrun. */
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kCSI_RxFifoOverrunFlag = CSI_CSISR_RF_OR_INT_MASK, /*!< RXFIFO overrun. */
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kCSI_Field0DoneFlag = CSI_CSISR_DMA_FIELD0_DONE_MASK, /*!< Field 0 transfer done. */
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kCSI_Field1DoneFlag = CSI_CSISR_DMA_FIELD1_DONE_MASK, /*!< Field 1 transfer done. */
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kCSI_BaseAddrChangeErrorFlag = CSI_CSISR_BASEADDR_CHHANGE_ERROR_MASK, /*!< The DMA output buffer base address
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changes before DMA completed. */
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};
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/* Forward declaration of the handle typedef. */
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typedef struct _csi_handle csi_handle_t;
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/*!
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* @brief CSI transfer callback function.
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*
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* When a new frame is received and saved to the frame buffer queue, the callback
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* is called and the pass the status @ref kStatus_CSI_FrameDone to upper layer.
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*/
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typedef void (*csi_transfer_callback_t)(CSI_Type *base, csi_handle_t *handle, status_t status, void *userData);
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/*!
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* @brief CSI handle structure.
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*
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* Please see the user guide for the details of the CSI driver queue mechanism.
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*/
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struct _csi_handle
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{
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uint32_t frameBufferQueue[CSI_DRIVER_ACTUAL_QUEUE_SIZE]; /*!< Frame buffer queue. */
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volatile uint8_t queueUserReadIdx; /*!< Application gets full-filled frame buffer from this index. */
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volatile uint8_t queueUserWriteIdx; /*!< Application puts empty frame buffer to this index. */
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volatile uint8_t queueDrvReadIdx; /*!< Driver gets empty frame buffer from this index. */
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volatile uint8_t queueDrvWriteIdx; /*!< Driver puts the full-filled frame buffer to this index. */
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volatile uint8_t activeBufferNum; /*!< How many frame buffers are in progres currently. */
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volatile uint8_t nextBufferIdx; /*!< The CSI frame buffer index to use for next frame. */
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volatile bool transferStarted; /*!< User has called @ref CSI_TransferStart to start frame receiving. */
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volatile bool transferOnGoing; /*!< CSI is working and receiving incoming frames. */
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csi_transfer_callback_t callback; /*!< Callback function. */
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void *userData; /*!< CSI callback function parameter.*/
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};
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/*******************************************************************************
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* API
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******************************************************************************/
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*!
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* @name Initialization and deinitialization
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* @{
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*/
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/*!
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* @brief Initialize the CSI.
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*
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* This function enables the CSI peripheral clock, and resets the CSI registers.
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*
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* @param base CSI peripheral base address.
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* @param config Pointer to the configuration structure.
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*
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* @retval kStatus_Success Initialize successfully.
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* @retval kStatus_InvalidArgument Initialize failed because of invalid argument.
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*/
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status_t CSI_Init(CSI_Type *base, const csi_config_t *config);
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/*!
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* @brief De-initialize the CSI.
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*
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* This function disables the CSI peripheral clock.
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*
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* @param base CSI peripheral base address.
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*/
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void CSI_Deinit(CSI_Type *base);
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/*!
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* @brief Reset the CSI.
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*
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* This function resets the CSI peripheral registers to default status.
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*
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* @param base CSI peripheral base address.
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*/
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void CSI_Reset(CSI_Type *base);
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/*!
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* @brief Get the default configuration for to initialize the CSI.
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*
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* The default configuration value is:
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*
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* @code
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config->width = 320U;
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config->height = 240U;
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config->polarityFlags = kCSI_HsyncActiveHigh | kCSI_DataLatchOnRisingEdge;
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config->bytesPerPixel = 2U;
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config->linePitch_Bytes = 320U * 2U;
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config->workMode = kCSI_GatedClockMode;
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config->dataBus = kCSI_DataBus8Bit;
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config->useExtVsync = true;
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@endcode
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*
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* @param config Pointer to the CSI configuration.
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*/
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void CSI_GetDefaultConfig(csi_config_t *config);
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/* @} */
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/*!
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* @name Module operation
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* @{
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*/
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/*!
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* @brief Clear the CSI FIFO.
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*
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* This function clears the CSI FIFO.
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*
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* @param base CSI peripheral base address.
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* @param fifo The FIFO to clear.
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*/
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void CSI_ClearFifo(CSI_Type *base, csi_fifo_t fifo);
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/*!
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* @brief Reflash the CSI FIFO DMA.
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*
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* This function reflashes the CSI FIFO DMA.
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*
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* For RXFIFO, there are two frame buffers. When the CSI module started, it saves
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* the frames to frame buffer 0 then frame buffer 1, the two buffers will be
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* written by turns. After reflash DMA using this function, the CSI is reset to
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* save frame to buffer 0.
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*
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* @param base CSI peripheral base address.
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* @param fifo The FIFO DMA to reflash.
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*/
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void CSI_ReflashFifoDma(CSI_Type *base, csi_fifo_t fifo);
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/*!
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* @brief Enable or disable the CSI FIFO DMA request.
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*
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* @param base CSI peripheral base address.
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* @param fifo The FIFO DMA reques to enable or disable.
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* @param enable True to enable, false to disable.
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*/
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void CSI_EnableFifoDmaRequest(CSI_Type *base, csi_fifo_t fifo, bool enable);
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/*!
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* @brief Start to receive data.
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*
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* @param base CSI peripheral base address.
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*/
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static inline void CSI_Start(CSI_Type *base)
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{
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CSI_EnableFifoDmaRequest(base, kCSI_RxFifo, true);
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base->CSICR18 |= CSI_CSICR18_CSI_ENABLE_MASK;
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}
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/*!
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* @brief Stop to receiving data.
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*
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* @param base CSI peripheral base address.
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*/
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static inline void CSI_Stop(CSI_Type *base)
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{
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base->CSICR18 &= ~CSI_CSICR18_CSI_ENABLE_MASK;
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CSI_EnableFifoDmaRequest(base, kCSI_RxFifo, false);
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}
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/*!
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* @brief Set the RX frame buffer address.
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*
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* @param base CSI peripheral base address.
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* @param index Buffer index.
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* @param addr Frame buffer address to set.
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*/
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void CSI_SetRxBufferAddr(CSI_Type *base, uint8_t index, uint32_t addr);
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/* @} */
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/*!
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* @name Interrupts
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* @{
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*/
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/*!
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* @brief Enables CSI interrupt requests.
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*
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* @param base CSI peripheral base address.
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* @param mask The interrupts to enable, pass in as OR'ed value of @ref _csi_interrupt_enable.
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*/
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void CSI_EnableInterrupts(CSI_Type *base, uint32_t mask);
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/*!
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* @brief Disable CSI interrupt requests.
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*
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* @param base CSI peripheral base address.
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* @param mask The interrupts to disable, pass in as OR'ed value of @ref _csi_interrupt_enable.
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*/
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void CSI_DisableInterrupts(CSI_Type *base, uint32_t mask);
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/* @} */
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/*!
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* @name Status
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* @{
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*/
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/*!
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* @brief Gets the CSI status flags.
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*
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* @param base CSI peripheral base address.
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|
* @return status flag, it is OR'ed value of @ref _csi_flags.
|
|
*/
|
|
static inline uint32_t CSI_GetStatusFlags(CSI_Type *base)
|
|
{
|
|
return base->CSISR;
|
|
}
|
|
|
|
/*!
|
|
* @brief Clears the CSI status flag.
|
|
*
|
|
* The flags to clear are passed in as OR'ed value of @ref _csi_flags. The following
|
|
* flags are cleared automatically by hardware:
|
|
*
|
|
* - @ref kCSI_RxFifoFullFlag,
|
|
* - @ref kCSI_StatFifoFullFlag,
|
|
* - @ref kCSI_Field0PresentFlag,
|
|
* - @ref kCSI_Field1PresentFlag,
|
|
* - @ref kCSI_RxFifoDataReadyFlag,
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param statusMask The status flags mask, OR'ed value of @ref _csi_flags.
|
|
*/
|
|
static inline void CSI_ClearStatusFlags(CSI_Type *base, uint32_t statusMask)
|
|
{
|
|
base->CSISR = statusMask;
|
|
}
|
|
/* @} */
|
|
|
|
/*!
|
|
* @name Transactional
|
|
* @{
|
|
*/
|
|
|
|
/*!
|
|
* @brief Initializes the CSI handle.
|
|
*
|
|
* This function initializes CSI handle, it should be called before any other
|
|
* CSI transactional functions.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle Pointer to the handle structure.
|
|
* @param callback Callback function for CSI transfer.
|
|
* @param userData Callback function parameter.
|
|
*
|
|
* @retval kStatus_Success Handle created successfully.
|
|
*/
|
|
status_t CSI_TransferCreateHandle(CSI_Type *base,
|
|
csi_handle_t *handle,
|
|
csi_transfer_callback_t callback,
|
|
void *userData);
|
|
|
|
/*!
|
|
* @brief Start the transfer using transactional functions.
|
|
*
|
|
* When the empty frame buffers have been submit to CSI driver using function
|
|
* @ref CSI_TransferSubmitEmptyBuffer, user could call this function to start
|
|
* the transfer. The incoming frame will be saved to the empty frame buffer,
|
|
* and user could be optionally notified through callback function.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle Pointer to the handle structure.
|
|
*
|
|
* @retval kStatus_Success Started successfully.
|
|
* @retval kStatus_CSI_NoEmptyBuffer Could not start because no empty frame buffer in queue.
|
|
*/
|
|
status_t CSI_TransferStart(CSI_Type *base, csi_handle_t *handle);
|
|
|
|
/*!
|
|
* @brief Stop the transfer using transactional functions.
|
|
*
|
|
* The driver does not clean the full frame buffers in queue. In other words, after
|
|
* calling this function, user still could get the full frame buffers in queue
|
|
* using function @ref CSI_TransferGetFullBuffer.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle Pointer to the handle structure.
|
|
*
|
|
* @retval kStatus_Success Stoped successfully.
|
|
*/
|
|
status_t CSI_TransferStop(CSI_Type *base, csi_handle_t *handle);
|
|
|
|
/*!
|
|
* @brief Submit empty frame buffer to queue.
|
|
*
|
|
* This function could be called before @ref CSI_TransferStart or after @ref
|
|
* CSI_TransferStart. If there is no room in queue to store the empty frame
|
|
* buffer, this function returns error.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle Pointer to the handle structure.
|
|
* @param frameBuffer Empty frame buffer to submit.
|
|
*
|
|
* @retval kStatus_Success Started successfully.
|
|
* @retval kStatus_CSI_QueueFull Could not submit because there is no room in queue.
|
|
*/
|
|
status_t CSI_TransferSubmitEmptyBuffer(CSI_Type *base, csi_handle_t *handle, uint32_t frameBuffer);
|
|
|
|
/*!
|
|
* @brief Get one full frame buffer from queue.
|
|
*
|
|
* After the transfer started using function @ref CSI_TransferStart, the incoming
|
|
* frames will be saved to the empty frame buffers in queue. This function gets
|
|
* the full-filled frame buffer from the queue. If there is no full frame buffer
|
|
* in queue, this function returns error.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle Pointer to the handle structure.
|
|
* @param frameBuffer Full frame buffer.
|
|
*
|
|
* @retval kStatus_Success Started successfully.
|
|
* @retval kStatus_CSI_NoFullBuffer There is no full frame buffer in queue.
|
|
*/
|
|
status_t CSI_TransferGetFullBuffer(CSI_Type *base, csi_handle_t *handle, uint32_t *frameBuffer);
|
|
|
|
/*!
|
|
* @brief CSI IRQ handle function.
|
|
*
|
|
* This function handles the CSI IRQ request to work with CSI driver transactional
|
|
* APIs.
|
|
*
|
|
* @param base CSI peripheral base address.
|
|
* @param handle CSI handle pointer.
|
|
*/
|
|
void CSI_TransferHandleIRQ(CSI_Type *base, csi_handle_t *handle);
|
|
/* @} */
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
/*! @}*/
|
|
|
|
#endif /* _FSL_CSI_H_ */
|