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hal: renesas: rx: Add support for IWDT driver on RX
Add IWDT hal support with r_iwdt_rx for Renesas RX Signed-off-by: Quy Tran <[email protected]>
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‎drivers/rx/CMakeLists.txt

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@@ -59,3 +59,12 @@ if(CONFIG_USE_RX_RDP_SCI_UART)
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"-Wno-missing-braces"
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)
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endif()
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if(CONFIG_USE_RX_RDP_IWDT)
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zephyr_include_directories(rdp/src/r_iwdt_rx
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rdp/src/r_iwdt_rx/src
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)
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zephyr_library_sources(
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rdp/src/r_iwdt_rx/src/r_iwdt_rx.c
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)
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endif()

‎drivers/rx/rdp/src/r_iwdt_rx/r_iwdt_rx_if.h

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/***********************************************************************************************************************
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* Copyright (c) 2013 - 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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/***********************************************************************************************************************
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* File Name : r_iwdt_rx_if.h
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* Description : Functions for using IWDT on RX devices.
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***********************************************************************************************************************/
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/***********************************************************************************************************************
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* History : DD.MM.YYYY Version Description
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* 07.06.2013 1.00 First Release
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* 06.09.2013 1.10 Change enumeration name
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* 19.03.2014 1.20 Removed unnecessary #includes. Added #ifdef to e_iwdt_timeout. Changed version number.
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* 30.12.2014 1.30 Added support for RX113.
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* 06.03.2015 1.40 Added support for RX64M & RX71M
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* 02.06.2015 1.50 Added support for RX231
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* 01.03.2016 1.51 Added support for RX130, RX230 and RX23T
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* 30.06.2016 1.60 Added support for RX65N
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* 19.12.2016 1.70 Added support for RX24U, RX24T(512KB)
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* 21.07.2017 1.80 Added support for RX130_512KB, RX65N-2M
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* 31.10.2017 1.81 Added the demo for RX65N, RX65N-2M
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* 28.09.2018 1.90 Added support for RX66T
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* 16.11.2018 1.91 Added XML document number
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* 01.02.2019 2.00 Added support for RX72T, RX65N-64pin.
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* Bug fix: R_WDT_Open(), R_IWDT_Open() invalidated if either module is in auto-start mode.
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* 20.05.2019 3.00 Added support for GNUC and ICCRX.
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* 28.06.2019 3.10 Added support for RX23W.
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* 15.08.2019 3.20 Added support for RX72M.
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* 25.11.2019 3.30 Added support for RX13T.
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* Removed support for Generation 1 devices.
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* Fixed to comply with GSCE Coding Standards Rev.6.00.
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* 30.12.2019 3.40 Added support for RX66N, RX72N.
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* 31.03.2020 3.50 Added support for RX23E-A.
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* 30.06.2020 3.60 Changed revision to reflect demo upgrade.
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* 31.03.2021 3.70 Added support for RX671.
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* 15.04.2021 3.80 Added support for RX140.
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* 13.09.2021 3.90 Added the demo for RX671.
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* 14.03.2022 4.00 Added support for RX66T-48Pin.
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* 31.03.2022 4.10 Added support for RX660.
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* 28.06.2022 4.20 Updated demo projects.
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* 15.08.2022 4.30 Added support for RX26T.
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* Fixed to comply with GSCE Coding Standards Rev.6.5.0
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* 29.05.2023 4.40 Added support for RX23E-B.
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* Fixed to comply with GSCE Coding Standards Rev.6.5.0
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* 28.06.2024 4.50 Added support for RX260, RX261.
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* 15.03.2025 4.51 Updated disclaimer
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***********************************************************************************************************************/
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#ifndef IWDT_RX_IF_H
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#define IWDT_RX_IF_H
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/***********************************************************************************************************************
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Includes <System Includes> , "Project Includes"
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***********************************************************************************************************************/
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#include "platform.h"
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/* Used for configuring the IWDT code */
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#include "r_iwdt_rx_config.h"
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/***********************************************************************************************************************
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Macro definitions
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***********************************************************************************************************************/
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#if R_BSP_VERSION_MAJOR < 5
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#error "This module must use BSP module of Rev.5.00 or higher. Please use the BSP module of Rev.5.00 or higher."
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#endif
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/* Version Number of API. */
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#define IWDT_RX_VERSION_MAJOR (4)
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#define IWDT_RX_VERSION_MINOR (51)
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#define OFS0_IWDT_DISABLED (0x00000002)
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/***********************************************************************************************************************
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Typedef definitions
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***********************************************************************************************************************/
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/* API ERROR RETURN CODES */
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#define IWDT_STAT_REFRESH_ERR_MASK (0x8000)
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#define IWDT_STAT_UNDERFLOW_ERR_MASK (0x4000)
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#define IWDT_STAT_ERROR_MASK (0xC000)
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#define IWDT_STAT_COUNTER_MASK (0x3FFF)
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typedef enum e_iwdt_err // IWDT API error codes
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{
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IWDT_SUCCESS=0,
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IWDT_ERR_OPEN_IGNORED, // The module has already been Open
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IWDT_ERR_INVALID_ARG, // Argument is not valid for parameter
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IWDT_ERR_NULL_PTR, // Received null pointer or missing required argument
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IWDT_ERR_NOT_OPENED, // Open function has not yet been called
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IWDT_ERR_BUSY, // IWDT resource locked
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} iwdt_err_t;
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/* Open() DEFINITIONS */
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typedef enum e_iwdt_timeout // IWDT Time-Out Period
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{
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#if defined(BSP_MCU_RX11_ALL) || defined(BSP_MCU_RX130) || defined(BSP_MCU_RX13T) || defined(BSP_MCU_RX23_ALL) \
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|| defined(BSP_MCU_RX24U)|| defined(BSP_MCU_RX140) || defined(BSP_MCU_RX260) || defined(BSP_MCU_RX261)
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IWDT_TIMEOUT_128 =0x0000u, // 128 (cycles)
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IWDT_TIMEOUT_512 =0x0001u, // 512 (cycles)
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IWDT_TIMEOUT_1024=0x0002u, // 1024 (cycles)
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IWDT_TIMEOUT_2048=0x0003u, // 2048 (cycles)
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#else /* RX64M, RX71M, RX65N, RX66T, RX66N, RX72T, RX72M, RX72N, RX671, RX660, RX26T */
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IWDT_TIMEOUT_1024 =0x0000u, // 1024 (cycles)
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IWDT_TIMEOUT_4096 =0x0001u, // 4096 (cycles)
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IWDT_TIMEOUT_8192 =0x0002u, // 8192 (cycles)
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IWDT_TIMEOUT_16384=0x0003u, // 16,384 (cycles)
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#endif
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IWDT_NUM_TIMEOUTS
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} iwdt_timeout_t;
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typedef enum e_iwdt_clock_div // IWDT Clock Division Ratio
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{
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IWDT_CLOCK_DIV_1 =0x0000u, // IWDTCLK/1
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IWDT_CLOCK_DIV_16 =0x0020u, // IWDTCLK/16
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IWDT_CLOCK_DIV_32 =0x0030u, // IWDTCLK/32
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IWDT_CLOCK_DIV_64 =0x0040u, // IWDTCLK/64
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IWDT_CLOCK_DIV_128=0x00F0u, // IWDTCLK/128
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IWDT_CLOCK_DIV_256=0x0050u // IWDTCLK/256
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} iwdt_clock_div_t;
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typedef enum e_iwdt_window_end // Window End Position
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{
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IWDT_WINDOW_END_75=0x0000u, // 75%
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IWDT_WINDOW_END_50=0x0100u, // 50%
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IWDT_WINDOW_END_25=0x0200u, // 25%
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IWDT_WINDOW_END_0 =0x0300u // 0% (window end position is not specified)
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} iwdt_window_end_t;
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typedef enum e_iwdt_window_start // Window Start Position
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{
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IWDT_WINDOW_START_25 =0x0000u, // 25%
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IWDT_WINDOW_START_50 =0x1000u, // 50%
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IWDT_WINDOW_START_75 =0x2000u, // 75%
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IWDT_WINDOW_START_100=0x3000u // 100% (window start position is not specified)
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} iwdt_window_start_t;
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typedef enum e_iwdt_timeout_control // Signal control when Time-out and Refresh error
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{
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IWDT_TIMEOUT_NMI =0x00u, // Non-maskable interrupt request output is enabled
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IWDT_TIMEOUT_RESET=0x80u // Reset output is enabled
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} iwdt_timeout_control_t;
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typedef enum e_iwdt_count_stop // Sleep mode count stop
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{
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IWDT_COUNT_STOP_DISABLE=0x00u, // 0: Count stop is disabled
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IWDT_COUNT_STOP_ENABLE =0x80u // 1: Count stop is enabled
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} iwdt_count_stop_t;
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typedef struct st_iwdt_config // IWDT configuration options used in Open function
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{
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iwdt_timeout_t timeout; // Time-out period
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iwdt_clock_div_t iwdtclk_div; // IWDT clock division ratio
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iwdt_window_start_t window_start; // Window start position
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iwdt_window_end_t window_end; // Window end position
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iwdt_timeout_control_t timeout_control; // Reset or NMI output when time-out
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iwdt_count_stop_t count_stop_enable;// Sleep mode count stop function
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} iwdt_config_t;
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/* Control() DEFINITIONS */
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typedef enum e_iwdt_cmd // Command used in Control and GetStatus function
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{
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IWDT_CMD_GET_STATUS, // Get IWDT status
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IWDT_CMD_REFRESH_COUNTING // Refresh the counter
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} iwdt_cmd_t;
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/***********************************************************************************************************************
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Public Functions
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***********************************************************************************************************************/
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#if ((BSP_CFG_OFS0_REG_VALUE & OFS0_IWDT_DISABLED) == OFS0_IWDT_DISABLED) /* Register start mode */
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/******************************************************************************
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* Function Name: R_IWDT_Open
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* Description : Initializes the IWDT counter options by initializing the associated registers
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* Argument : p_cfg
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* Return Value : .
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*****************************************************************************/
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iwdt_err_t R_IWDT_Open (void * const p_cfg);
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#endif
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/******************************************************************************
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* Function Name: R_IWDT_Control
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* Description : Getting the IWDT status and refreshing the down-counter of IWDT
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* Arguments : cmd
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* : p_status
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* Return Value : .
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*****************************************************************************/
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iwdt_err_t R_IWDT_Control (iwdt_cmd_t const cmd, uint16_t * p_status);
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/******************************************************************************
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* Function Name: R_IWDT_GetVersion
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* Description : Returns the version number of the module
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* Return Value : .
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*****************************************************************************/
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uint32_t R_IWDT_GetVersion (void);
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#endif /* IWDT_RX_IF_H */

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