| /* |
| * Copyright (c) 2015, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * o Redistributions of source code must retain the above copyright notice, this list |
| * of conditions and the following disclaimer. |
| * |
| * o 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. |
| * |
| * o Neither the name of the copyright holder nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * 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 HOLDER 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. |
| */ |
| |
| #ifndef _FSL_XBARA_H_ |
| #define _FSL_XBARA_H_ |
| |
| #include "fsl_common.h" |
| |
| /*! |
| * @addtogroup xbara |
| * @{ |
| */ |
| |
| /******************************************************************************* |
| * Definitions |
| ******************************************************************************/ |
| |
| #define FSL_XBARA_DRIVER_VERSION (MAKE_VERSION(2, 0, 3)) /*!< Version 2.0.3. */ |
| |
| /* Macros for entire XBARA_SELx register. */ |
| #define XBARA_SELx(base, output) (*(volatile uint16_t *)((uintptr_t) & (base->SEL0) + ((output) / 2U) * 2U)) |
| /* Set the XBARA_SELx_SELx field to a new value. */ |
| #define XBARA_WR_SELx_SELx(base, input, output) \ |
| (XBARA_SELx((base), (output)) = \ |
| ((XBARA_SELx((base), (output)) & ~(0xFFU << (XBARA_SEL0_SEL1_SHIFT * ((output) % 2U)))) | \ |
| ((input) << (XBARA_SEL0_SEL1_SHIFT * ((output) % 2U))))) |
| |
| /*! |
| * @brief XBARA active edge for detection |
| */ |
| typedef enum _xbara_active_edge |
| { |
| kXBARA_EdgeNone = 0U, /*!< Edge detection status bit never asserts. */ |
| kXBARA_EdgeRising = 1U, /*!< Edge detection status bit asserts on rising edges. */ |
| kXBARA_EdgeFalling = 2U, /*!< Edge detection status bit asserts on falling edges. */ |
| kXBARA_EdgeRisingAndFalling = 3U /*!< Edge detection status bit asserts on rising and falling edges. */ |
| } xbara_active_edge_t; |
| |
| /*! |
| * @brief Defines the XBARA DMA and interrupt configurations. |
| */ |
| typedef enum _xbar_request |
| { |
| kXBARA_RequestDisable = 0U, /*!< Interrupt and DMA are disabled. */ |
| kXBARA_RequestDMAEnable = 1U, /*!< DMA enabled, interrupt disabled. */ |
| kXBARA_RequestInterruptEnalbe = 2U /*!< Interrupt enabled, DMA disabled. */ |
| } xbara_request_t; |
| |
| /*! |
| * @brief XBARA status flags. |
| * |
| * This provides constants for the XBARA status flags for use in the XBARA functions. |
| */ |
| typedef enum _xbara_status_flag_t |
| { |
| kXBARA_EdgeDetectionOut0 = |
| (XBARA_CTRL0_STS0_MASK), /*!< XBAR_OUT0 active edge interrupt flag, sets when active edge detected. */ |
| kXBARA_EdgeDetectionOut1 = |
| (XBARA_CTRL0_STS1_MASK), /*!< XBAR_OUT1 active edge interrupt flag, sets when active edge detected. */ |
| kXBARA_EdgeDetectionOut2 = |
| (XBARA_CTRL1_STS2_MASK << 16U), /*!< XBAR_OUT2 active edge interrupt flag, sets when active edge detected. */ |
| kXBARA_EdgeDetectionOut3 = |
| (XBARA_CTRL1_STS3_MASK << 16U), /*!< XBAR_OUT3 active edge interrupt flag, sets when active edge detected. */ |
| } xbara_status_flag_t; |
| |
| /*! |
| * @brief Defines the configuration structure of the XBARA control register. |
| * |
| * This structure keeps the configuration of XBARA control register for one output. |
| * Control registers are available only for a few outputs. Not every XBARA module has |
| * control registers. |
| */ |
| typedef struct XBARAControlConfig |
| { |
| xbara_active_edge_t activeEdge; /*!< Active edge to be detected. */ |
| xbara_request_t requestType; /*!< Selects DMA/Interrupt request. */ |
| } xbara_control_config_t; |
| |
| /******************************************************************************* |
| * API |
| ******************************************************************************/ |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif /* __cplusplus */ |
| |
| /*! |
| * @name XBARA functional Operation. |
| * @{ |
| */ |
| |
| /*! |
| * @brief Initializes the XBARA module. |
| * |
| * This function un-gates the XBARA clock. |
| * |
| * @param base XBARA peripheral address. |
| */ |
| void XBARA_Init(XBARA_Type *base); |
| |
| /*! |
| * @brief Shuts down the XBARA module. |
| * |
| * This function disables XBARA clock. |
| * |
| * @param base XBARA peripheral address. |
| */ |
| void XBARA_Deinit(XBARA_Type *base); |
| |
| /*! |
| * @brief Sets a connection between the selected XBARA_IN[*] input and the XBARA_OUT[*] output signal. |
| * |
| * This function connects the XBARA input to the selected XBARA output. |
| * If more than one XBARA module is available, only the inputs and outputs from the same module |
| * can be connected. |
| * |
| * Example: |
| @code |
| XBARA_SetSignalsConnection(XBARA, kXBARA_InputPIT_TRG0, kXBARA_OutputDMAMUX18); |
| @endcode |
| * |
| * @param base XBARA peripheral address. |
| * @param input XBARA input signal. |
| * @param output XBARA output signal. |
| */ |
| void XBARA_SetSignalsConnection(XBARA_Type *base, xbar_input_signal_t input, xbar_output_signal_t output); |
| |
| /*! |
| * @brief Gets the active edge detection status. |
| * |
| * This function gets the active edge detect status of all XBARA_OUTs. If the |
| * active edge occurs, the return value is asserted. When the interrupt or the DMA |
| * functionality is enabled for the XBARA_OUTx, this field is 1 when the interrupt |
| * or DMA request is asserted and 0 when the interrupt or DMA request has been |
| * cleared. |
| * |
| * @param base XBARA peripheral address. |
| * @return the mask of these status flag bits. |
| */ |
| uint32_t XBARA_GetStatusFlags(XBARA_Type *base); |
| |
| /*! |
| * @brief Clears the the edge detection status flags of relative mask. |
| * |
| * @param base XBARA peripheral address. |
| * @param mask the status flags to clear. |
| */ |
| void XBARA_ClearStatusFlags(XBARA_Type *base, uint32_t mask); |
| |
| /*! |
| * @brief Configures the XBARA control register. |
| * |
| * This function configures an XBARA control register. The active edge detection |
| * and the DMA/IRQ function on the corresponding XBARA output can be set. |
| * |
| * Example: |
| @code |
| xbara_control_config_t userConfig; |
| userConfig.activeEdge = kXBARA_EdgeRising; |
| userConfig.requestType = kXBARA_RequestInterruptEnalbe; |
| XBARA_SetOutputSignalConfig(XBARA, kXBARA_OutputDMAMUX18, &userConfig); |
| @endcode |
| * |
| * @param base XBARA peripheral address. |
| * @param output XBARA output number. |
| * @param controlConfig Pointer to structure that keeps configuration of control register. |
| */ |
| void XBARA_SetOutputSignalConfig(XBARA_Type *base, |
| xbar_output_signal_t output, |
| const xbara_control_config_t *controlConfig); |
| |
| #if defined(__cplusplus) |
| } |
| #endif /* __cplusplus */ |
| |
| /*! @}*/ |
| |
| /*!* @} */ |
| |
| #endif /* _FSL_XBARA_H_ */ |