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Minh Tang
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hal: renesas: ra: Add Portable Functions for LVD RA
Add files support for additional function on LVD RA Signed-off-by: Minh Tang <[email protected]>
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‎zephyr/ra/CMakeLists.txt‎

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@@ -19,3 +19,5 @@ zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_SCI_B_SPI
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portable/src/rp_sci_b_spi/rp_sci_b_spi.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_ADC
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portable/src/rp_adc/rp_adc.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_LVD
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portable/src/rp_lvd/rp_lvd.c)

‎zephyr/ra/portable/inc/rp_lvd.h‎

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/*
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* Copyright (c) 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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* @addtogroup LVD-PVD
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* @{
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**********************************************************************************************************************/
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#ifndef RP_LVD_H
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#define RP_LVD_H
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/***********************************************************************************************************************
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* Includes
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**********************************************************************************************************************/
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#include "r_lvd.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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* Public APIs
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**********************************************************************************************************************/
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fsp_err_t RP_LVD_Enable(lvd_ctrl_t * const p_api_ctrl, bool enable);
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fsp_err_t RP_LVD_IsEnable(lvd_ctrl_t * const p_api_ctrl, bool * is_enabled);
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fsp_err_t RP_LVD_TriggerSet(lvd_ctrl_t * const p_api_ctrl, bool reset_action, lvd_voltage_slope_t voltage_slope);
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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 defgroup LVD-PVD)
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**********************************************************************************************************************/

‎zephyr/ra/portable/src/rp_lvd/rp_lvd.c‎

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/*
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* Copyright (c) 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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* Includes
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**********************************************************************************************************************/
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#include "rp_lvd.h"
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/***********************************************************************************************************************
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* Macro definitions
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**********************************************************************************************************************/
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#define LVD_STABILIZATION_TIME_US 20U
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/***********************************************************************************************************************
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* Private function prototypes
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**********************************************************************************************************************/
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/***********************************************************************************************************************
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* Private global variables
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**********************************************************************************************************************/
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#if (1U == BSP_FEATURE_LVD_VERSION)
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/* Look-up tables for writing to monitor 1 and monitor 2 registers. */
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static uint8_t volatile * const g_lvdncr0_lut[] = {&(R_SYSTEM->LVD1CR0), &(R_SYSTEM->LVD2CR0)};
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static uint8_t volatile * const g_lvdncr1_lut[] = {&(R_SYSTEM->LVD1CR1), &(R_SYSTEM->LVD2CR1)};
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static uint8_t volatile * const g_lvdnsr_lut[] = {&(R_SYSTEM->LVD1SR), &(R_SYSTEM->LVD2SR)};
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#elif (2U == BSP_FEATURE_LVD_VERSION)
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static uint8_t volatile * const g_lvdnsr_lut[] = {&(R_SYSTEM->LVD1SR)};
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#elif (3U == BSP_FEATURE_LVD_VERSION)
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/* Look-up tables for writing to monitor 1, monitor 2, monitor 4, monitor 5, registers. monitor 3
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* registers are dummy variables. */
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static uint8_t volatile * const g_lvdncr0_lut[] =
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{
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&(R_SYSTEM->LVD1CR0), &(R_SYSTEM->LVD2CR0),
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&(R_SYSTEM->LVD3CR0), &(R_SYSTEM->LVD4CR0),
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&(R_SYSTEM->LVD5CR0)
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};
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static uint8_t volatile * const g_lvdncr1_lut[] =
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{
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&(R_SYSTEM->LVD1CR1), &(R_SYSTEM->LVD2CR1),
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&(R_SYSTEM->LVD3CR1), &(R_SYSTEM->LVD4CR1),
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&(R_SYSTEM->LVD5CR1)
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};
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static uint8_t volatile * const g_lvdnsr_lut[] = {&(R_SYSTEM->LVD1SR), &(R_SYSTEM->LVD2SR)};
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#endif
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#if BSP_FEATURE_LVD_SUPPORT_RESET_ON_RISING_EDGE
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#if (3U == BSP_FEATURE_LVD_VERSION)
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static uint8_t volatile * const g_lvdnfcr_lut[] =
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{
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&(R_SYSTEM->LVD1FCR), &(R_SYSTEM->LVD2FCR),
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&(R_SYSTEM->LVD3FCR), &(R_SYSTEM->LVD4FCR),
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&(R_SYSTEM->LVD5FCR)
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};
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#else
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static uint8_t volatile * const g_lvdnfcr_lut[] = {&(R_SYSTEM->LVD1FCR), &(R_SYSTEM->LVD2FCR)};
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#endif
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#endif
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#if (BSP_FEATURE_LVD_HAS_LVDLVLR == 1)
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static uint32_t const g_lvdlvlr_offset_lut[] =
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{
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R_SYSTEM_LVDLVLR_LVD1LVL_Pos,
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R_SYSTEM_LVDLVLR_LVD2LVL_Pos
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};
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static uint32_t const g_lvdlvlr_mask_lut[] =
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{
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R_SYSTEM_LVDLVLR_LVD1LVL_Msk,
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R_SYSTEM_LVDLVLR_LVD2LVL_Msk
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};
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#elif (1U == BSP_FEATURE_LVD_VERSION)
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static uint8_t volatile * const g_lvdncmpcr_lut[] = {&(R_SYSTEM->LVD1CMPCR), &(R_SYSTEM->LVD2CMPCR)};
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#elif (3U == BSP_FEATURE_LVD_VERSION)
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static uint8_t volatile * const g_lvdncmpcr_lut[] =
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{
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&(R_SYSTEM->LVD1CMPCR), &(R_SYSTEM->LVD2CMPCR),
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&(R_SYSTEM->LVD3CMPCR), &(R_SYSTEM->LVD4CMPCR),
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&(R_SYSTEM->LVD5CMPCR)
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};
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#endif
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/***********************************************************************************************************************
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* Global Variables
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**********************************************************************************************************************/
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/***********************************************************************************************************************
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* Functions
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**********************************************************************************************************************/
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/*******************************************************************************************************************//**
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* Enable or disable LVD interrupt/reset response.
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*
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* @retval FSP_SUCCESS Enable/Disable was successful.
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* @retval FSP_ERR_ASSERTION p_ctrl is NULL.
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* @retval FSP_ERR_NOT_OPEN Module not opened.
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**********************************************************************************************************************/
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fsp_err_t RP_LVD_Enable (lvd_ctrl_t * const p_api_ctrl, bool enable)
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{
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lvd_instance_ctrl_t * p_ctrl = (lvd_instance_ctrl_t *) p_api_ctrl;
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int channel_index = p_ctrl->p_cfg->monitor_number - 1;
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#if LVD_CFG_PARAM_CHECKING_ENABLE
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FSP_ASSERT(p_ctrl);
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FSP_ERROR_RETURN(0 != p_ctrl->open, FSP_ERR_NOT_OPEN);
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#endif
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R_BSP_RegisterProtectDisable(BSP_REG_PROTECT_LVD);
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if (enable)
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{
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*g_lvdncr0_lut[channel_index] |= (R_SYSTEM_LVD1CR0_RIE_Msk);
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}
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else
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{
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*g_lvdncr0_lut[channel_index] &= ~(R_SYSTEM_LVD1CR0_RIE_Msk);
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*g_lvdnsr_lut[channel_index] &= ~(R_SYSTEM_LVD1SR_DET_Msk);
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}
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R_BSP_RegisterProtectEnable(BSP_REG_PROTECT_LVD);
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return FSP_SUCCESS;
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}
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/*******************************************************************************************************************//**
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* Get the current status of the LVD response (reset/interrupt enabled).
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*
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* @retval FSP_SUCCESS Get status was successful.
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* @retval FSP_ERR_ASSERTION p_ctrl is NULL.
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* @retval FSP_ERR_NOT_OPEN Module not opened.
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**********************************************************************************************************************/
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fsp_err_t RP_LVD_IsEnable (lvd_ctrl_t * const p_api_ctrl, bool * is_enabled)
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{
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lvd_instance_ctrl_t * p_ctrl = (lvd_instance_ctrl_t *) p_api_ctrl;
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int channel_index = p_ctrl->p_cfg->monitor_number - 1;
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#if LVD_CFG_PARAM_CHECKING_ENABLE
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FSP_ASSERT(p_ctrl);
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FSP_ASSERT(is_enabled);
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FSP_ERROR_RETURN(0 != p_ctrl->open, FSP_ERR_NOT_OPEN);
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#endif
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*(is_enabled) = (bool) (*g_lvdncr0_lut[channel_index] & R_SYSTEM_LVD1CR0_RIE_Msk);
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return FSP_SUCCESS;
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}
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/*******************************************************************************************************************//**
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* Set LVD trigger edge.
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*
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* @retval FSP_SUCCESS Setting was successful.
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* @retval FSP_ERR_ASSERTION p_ctrl is NULL.
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* @retval FSP_ERR_NOT_OPEN Module not opened.
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* @retval FSP_ERR_INVALID_ARGUMENT Trigger both edge when in reset action.
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**********************************************************************************************************************/
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fsp_err_t RP_LVD_TriggerSet (lvd_ctrl_t * const p_api_ctrl, bool reset_action, lvd_voltage_slope_t voltage_slope)
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{
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lvd_instance_ctrl_t * p_ctrl = (lvd_instance_ctrl_t *) p_api_ctrl;
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int channel_index = p_ctrl->p_cfg->monitor_number - 1;
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#if LVD_CFG_PARAM_CHECKING_ENABLE
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FSP_ASSERT(p_ctrl);
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FSP_ERROR_RETURN(0 != p_ctrl->open, FSP_ERR_NOT_OPEN);
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/* Reset response is not accepted in case voltage slope is both edges */
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FSP_ERROR_RETURN((reset_action == false) || (voltage_slope != LVD_VOLTAGE_SLOPE_BOTH),
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FSP_ERR_INVALID_ARGUMENT);
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#endif
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R_BSP_RegisterProtectDisable(BSP_REG_PROTECT_LVD);
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if (reset_action)
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{
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*g_lvdncmpcr_lut[channel_index] &= ~(R_SYSTEM_LVD1CMPCR_LVDE_Msk);
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*g_lvdnfcr_lut[channel_index] = (voltage_slope == LVD_VOLTAGE_SLOPE_RISING);
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*g_lvdncmpcr_lut[channel_index] |= R_SYSTEM_LVD1CMPCR_LVDE_Msk;
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R_BSP_SoftwareDelay(LVD_STABILIZATION_TIME_US, BSP_DELAY_UNITS_MICROSECONDS);
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}
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else
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{
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*g_lvdncr1_lut[channel_index] &= ~(R_SYSTEM_LVD1CR1_IDTSEL_Msk);
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*g_lvdncr1_lut[channel_index] |=
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((voltage_slope << R_SYSTEM_LVD1CR1_IDTSEL_Pos) & R_SYSTEM_LVD1CR1_IDTSEL_Msk);
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}
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R_BSP_RegisterProtectEnable(BSP_REG_PROTECT_LVD);
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return FSP_SUCCESS;
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}

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