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khoatranyjKhiemNguyenT
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hal: renesas: ra: Initial support for SCI SPI of Renesas RA
Initial support for SCI SPI of Renesas RA Signed-off-by: Khoa Tran <[email protected]> Signed-off-by: Khoa Nguyen <[email protected]>
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‎drivers/ra/CMakeLists.txt‎

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@@ -42,6 +42,8 @@ zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_SPI_B
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fsp/src/r_spi_b/r_spi_b.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_SPI
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fsp/src/r_spi/r_spi.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_SCI_B_SPI
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fsp/src/r_sci_b_spi/r_sci_b_spi.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_TIMER_ULPT
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fsp/src/r_ulpt/r_ulpt.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_LPM

‎drivers/ra/fsp/inc/instances/r_sci_b_spi.h‎

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/*
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* Copyright (c) 2020 - 2025 Renesas Electronics Corporation and/or its affiliates
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef R_SCI_B_SPI_H
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#define R_SCI_B_SPI_H
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/***********************************************************************************************************************
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* Includes
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**********************************************************************************************************************/
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#include "r_spi_api.h"
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/* Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */
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FSP_HEADER
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/*****************************************************************************************************************//**
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* @ingroup SCI_B_SPI
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* @{
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********************************************************************************************************************/
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/***********************************************************************************************************************
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* Macro definitions
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**********************************************************************************************************************/
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/***********************************************************************************************************************
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* Typedef definitions
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**********************************************************************************************************************/
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/** Settings for adjusting the SPI CLK. */
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typedef struct
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{
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uint8_t brr;
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uint8_t cks : 2;
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uint8_t bgdm : 1;
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} sci_b_spi_div_setting_t;
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/** Source clock selection options for SCI. */
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typedef enum e_sci_b_spi_clock_source
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{
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SCI_B_SPI_SOURCE_CLOCK_SCISPICLK = 0,
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SCI_B_SPI_SOURCE_CLOCK_PCLK = 1,
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} sci_b_spi_clock_source_t;
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/** SCI SPI extended configuration */
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typedef struct st_sci_b_spi_extended_cfg
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{
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sci_b_spi_div_setting_t clk_div;
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/** Clock source to generate SCK can either be selected as PCLK or SCISPICLK. */
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sci_b_spi_clock_source_t clock_source;
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} sci_b_spi_extended_cfg_t;
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/** SPI instance control block. DO NOT INITIALIZE. */
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typedef struct st_sci_b_spi_instance_ctrl
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{
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uint32_t open;
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spi_cfg_t const * p_cfg;
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R_SCI_B0_Type * p_reg;
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uint8_t * p_src;
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uint8_t * p_dest;
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uint32_t tx_count;
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uint32_t rx_count;
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uint32_t count;
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/* Pointer to callback and optional working memory */
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void (* p_callback)(spi_callback_args_t *);
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spi_callback_args_t * p_callback_memory;
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/* Pointer to context to be passed into callback function */
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void * p_context;
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} sci_b_spi_instance_ctrl_t;
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/**********************************************************************************************************************
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* Exported global variables
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**********************************************************************************************************************/
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/** @cond INC_HEADER_DEFS_SEC */
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/** Filled in Interface API structure for this Instance. */
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extern const spi_api_t g_spi_on_sci_b;
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/** @endcond */
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/**********************************************************************************************************************
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* Public Function Prototypes
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**********************************************************************************************************************/
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fsp_err_t R_SCI_B_SPI_Open(spi_ctrl_t * p_api_ctrl, spi_cfg_t const * const p_cfg);
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fsp_err_t R_SCI_B_SPI_Read(spi_ctrl_t * const p_api_ctrl,
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void * p_dest,
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uint32_t const length,
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spi_bit_width_t const bit_width);
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fsp_err_t R_SCI_B_SPI_Write(spi_ctrl_t * const p_api_ctrl,
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void const * p_src,
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uint32_t const length,
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spi_bit_width_t const bit_width);
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fsp_err_t R_SCI_B_SPI_WriteRead(spi_ctrl_t * const p_api_ctrl,
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void const * p_src,
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void * p_dest,
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uint32_t const length,
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spi_bit_width_t const bit_width);
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fsp_err_t R_SCI_B_SPI_Close(spi_ctrl_t * const p_api_ctrl);
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fsp_err_t R_SCI_B_SPI_CalculateBitrate(uint32_t bitrate,
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sci_b_spi_clock_source_t clock_source,
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sci_b_spi_div_setting_t * sclk_div);
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fsp_err_t R_SCI_B_SPI_CallbackSet(spi_ctrl_t * const p_api_ctrl,
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void ( * p_callback)(spi_callback_args_t *),
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void * const p_context,
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spi_callback_args_t * const p_callback_memory);
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/* Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */
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FSP_FOOTER
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#endif
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/*******************************************************************************************************************//**
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* @} (end ingroup SCI_B_SPI)
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**********************************************************************************************************************/

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