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Ta Minh NhatKhiemNguyenT
Ta Minh Nhat
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KhiemNguyenT
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hal: renesas: ra: add portable implementation for r_i3c
Initial support for rp_i3c. Signed-off-by: Ta Minh Nhat <[email protected]>
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‎zephyr/ra/CMakeLists.txt

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@@ -12,3 +12,5 @@ zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_CRC
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portable/src/rp_crc/rp_crc.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_SSI
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portable/src/rp_ssi/rp_ssi.c)
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zephyr_library_sources_ifdef(CONFIG_USE_RA_FSP_I3C
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portable/src/rp_i3c/rp_i3c.c)

‎zephyr/ra/portable/inc/rp_i3c.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 I3C
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* @{
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**********************************************************************************************************************/
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#ifndef RP_I3C_H
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#define RP_I3C_H
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/***********************************************************************************************************************
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* Includes
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**********************************************************************************************************************/
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#include "r_i3c.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 R_I3C_MasterDeviceTableGet(i3c_ctrl_t * const p_api_ctrl,
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uint32_t device_index,
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i3c_device_table_cfg_t * const p_device_table_cfg);
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fsp_err_t R_I3C_MasterDeviceTableReset(i3c_ctrl_t * const p_api_ctrl, uint32_t device_index);
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/*******************************************************************************************************************//**
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* @} (end defgroup I3C)
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**********************************************************************************************************************/
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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

‎zephyr/ra/portable/src/rp_i3c/rp_i3c.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 "r_i3c.h"
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#include "r_i3c_cfg.h"
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#include "rp_i3c.h"
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/***********************************************************************************************************************
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* Macro definitions
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**********************************************************************************************************************/
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/* Bitfield definitions for Command Descriptor fields. */
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#define R_I3C0_DATBAS0_DVDYAD_Parity_Msk (1U << 23)
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/*******************************************************************************************************************//**
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* Configure an entry in the master device table. This function is called in master mode in order to configure
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* the devices on the I3C bus. It may also be called in slave mode when the slave receives the DEFSVLS command.
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*
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* @retval FSP_SUCCESS Open successful.
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* @retval FSP_ERR_ASSERTION An argument was NULL.
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* @retval FSP_ERR_NOT_OPEN This instance has not been opened yet.
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* @retval FSP_ERR_UNSUPPORTED Mastership requests must be rejected is slave support is disabled.
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**********************************************************************************************************************/
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fsp_err_t R_I3C_MasterDeviceTableGet (i3c_ctrl_t * const p_api_ctrl,
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uint32_t device_index,
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i3c_device_table_cfg_t * const p_device_table_cfg)
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{
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#if I3C_CFG_MASTER_SUPPORT
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i3c_instance_ctrl_t * p_ctrl = (i3c_instance_ctrl_t *) p_api_ctrl;
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uint32_t volatile * p_datbasn_reg = NULL;
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uint32_t datbasn = 0;
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if (I3C_DEVICE_INDEX_EXTENDED_DEVICE == device_index)
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{
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p_datbasn_reg = &p_ctrl->p_reg->EXDATBAS;
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}
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else
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{
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/* Compute the address of the DATBASn register. */
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uint32_t address_offset = (uint32_t) (&p_ctrl->p_reg->DATBAS1 - &p_ctrl->p_reg->DATBAS0);
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p_datbasn_reg = (uint32_t *) (&p_ctrl->p_reg->DATBAS0 + device_index * address_offset);
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}
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datbasn = *((uint32_t *)p_datbasn_reg);
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if (I3C_DEVICE_INDEX_EXTENDED_DEVICE != device_index)
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{
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p_device_table_cfg->ibi_payload = (uint8_t) ((datbasn & R_I3C0_DATBAS0_DVIBIPL_Msk) >> R_I3C0_DATBAS0_DVIBIPL_Pos);
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p_device_table_cfg->ibi_accept = (uint8_t) !((datbasn & R_I3C0_DATBAS0_DVSIRRJ_Msk) >> R_I3C0_DATBAS0_DVSIRRJ_Pos);
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p_device_table_cfg->master_request_accept = (uint8_t) !((datbasn & R_I3C0_DATBAS0_DVMRRJ_Msk) >> R_I3C0_DATBAS0_DVMRRJ_Pos);
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}
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p_device_table_cfg->static_address = (uint8_t) (datbasn & R_I3C0_DATBAS0_DVSTAD_Msk) >> R_I3C0_DATBAS0_DVSTAD_Pos;
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p_device_table_cfg->dynamic_address = (uint8_t) ((datbasn & R_I3C0_DATBAS0_DVDYAD_Msk & (~R_I3C0_DATBAS0_DVDYAD_Parity_Msk)) >> R_I3C0_DATBAS0_DVDYAD_Pos);
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uint32_t dvtyp = (datbasn & R_I3C0_DATBAS0_DVTYP_Msk) >> R_I3C0_DATBAS0_DVTYP_Pos;
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if (dvtyp)
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{
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p_device_table_cfg->device_protocol = I3C_DEVICE_PROTOCOL_I2C;
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}
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else
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{
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p_device_table_cfg->device_protocol = I3C_DEVICE_PROTOCOL_I3C;
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}
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return FSP_SUCCESS;
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#else
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FSP_PARAMETER_NOT_USED(p_api_ctrl);
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FSP_PARAMETER_NOT_USED(device_index);
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FSP_PARAMETER_NOT_USED(p_device_table_cfg);
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return FSP_ERR_UNSUPPORTED;
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#endif
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}
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fsp_err_t R_I3C_MasterDeviceTableReset (i3c_ctrl_t * const p_api_ctrl,
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uint32_t device_index)
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{
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#if I3C_CFG_MASTER_SUPPORT
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i3c_instance_ctrl_t * p_ctrl = (i3c_instance_ctrl_t *) p_api_ctrl;
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uint32_t volatile * p_datbasn_reg = NULL;
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if (I3C_DEVICE_INDEX_EXTENDED_DEVICE == device_index)
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{
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p_datbasn_reg = &p_ctrl->p_reg->EXDATBAS;
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}
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else
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{
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/* Compute the address of the DATBASn register. */
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uint32_t address_offset = (uint32_t) (&p_ctrl->p_reg->DATBAS1 - &p_ctrl->p_reg->DATBAS0);
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p_datbasn_reg = (uint32_t *) (&p_ctrl->p_reg->DATBAS0 + device_index * address_offset);
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}
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/* Reset the DATBASn register. */
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*p_datbasn_reg = (uint32_t) 0U;
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return FSP_SUCCESS;
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#else
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FSP_PARAMETER_NOT_USED(p_api_ctrl);
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FSP_PARAMETER_NOT_USED(device_index);
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return FSP_ERR_UNSUPPORTED;
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#endif
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}

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