|  | /* | 
|  | * Copyright (c) 2025 Renesas Electronics Corporation | 
|  | * | 
|  | * SPDX-License-Identifier: Apache-2.0 | 
|  | */ | 
|  |  | 
|  | #include <zephyr/device.h> | 
|  | #include <zephyr/sys/byteorder.h> | 
|  | #include <zephyr/drivers/i3c.h> | 
|  | #include <zephyr/drivers/pinctrl.h> | 
|  | #include <zephyr/drivers/clock_control.h> | 
|  | #include <zephyr/logging/log.h> | 
|  | #include <r_i3c.h> | 
|  | #include <rp_i3c.h> | 
|  |  | 
|  | #define DT_DRV_COMPAT renesas_ra_i3c | 
|  |  | 
|  | LOG_MODULE_REGISTER(i3c_ra, CONFIG_I3C_LOG_LEVEL); | 
|  |  | 
|  | #define I3C_RENESAS_RA_DATBAS_NUM                   (8U) | 
|  | #define I3C_RENESAS_RA_BUS_OPEN                     (('I' << 16U) | ('3' << 8U) | ('C' << 0U)) | 
|  | #define I3C_RENESAS_RA_TYP_OD_RATE                  (1000000U) | 
|  | #define I3C_RENESAS_RA_TYP_PP_RATE                  (4000000U) | 
|  | #define I3C_RENESAS_RA_BUS_FREE_DETECTION_TIME      (7U) | 
|  | #define I3C_RENESAS_RA_BUS_AVAILABLE_DETECTION_TIME (160U) | 
|  | #define I3C_RENESAS_RA_BUS_IDLE_DETECTION_TIME      (160000U) | 
|  | #define RESET_VALUE                                 (0U) | 
|  | #define RSP_STT_SUCCESS                             (0x00) | 
|  | #define RSP_STT_ABORTED                             (0x08) | 
|  |  | 
|  | /* SCL Specifications */ | 
|  | #define I3C_RENESAS_RA_TRANSFER_TIMEOUT K_MSEC(500U) /* Default timeout */ | 
|  | #define I3C_RENESAS_RA_OD_RISING_NS     (0U)         /* Open Drain Logic Rising Time (ns) */ | 
|  | #define I3C_RENESAS_RA_OD_FALLING_NS    (0U)         /* Open Drain Logic Falling Time (ns) */ | 
|  | #define I3C_RENESAS_RA_PP_RISING_NS     (0U)         /* Open Drain Logic Rising Time (ns) */ | 
|  | #define I3C_RENESAS_RA_PP_FALLING_NS    (0U)         /* Open Drain Logic Falling Time (ns) */ | 
|  | #define I3C_RENESAS_RA_OD_HIGH_NS       (167U)       /* Open Drain Logic High Time (ns) */ | 
|  | #define I3C_RENESAS_RA_PP_HIGH_NS       (50U)        /* Push Pull Logic High Time (ns) */ | 
|  | #define I3C_RENESAS_RA_EBRHP_MAX        (R_I3C0_EXTBR_EBRHP_Msk >> R_I3C0_EXTBR_EBRHP_Pos) | 
|  | #define I3C_RENESAS_RA_EBRLP_MAX        (R_I3C0_EXTBR_EBRLP_Msk >> R_I3C0_EXTBR_EBRLP_Pos) | 
|  | #define I3C_RENESAS_RA_EBRHO_MAX        (R_I3C0_EXTBR_EBRHO_Msk >> R_I3C0_EXTBR_EBRHO_Pos) | 
|  | #define I3C_RENESAS_RA_EBRLO_MAX        (R_I3C0_EXTBR_EBRLO_Msk >> R_I3C0_EXTBR_EBRLO_Pos) | 
|  | #define I3C_RENESAS_RA_SBRHP_MAX        (R_I3C0_STDBR_SBRHP_Msk >> R_I3C0_STDBR_SBRHP_Pos) | 
|  | #define I3C_RENESAS_RA_SBRLP_MAX        (R_I3C0_STDBR_SBRLP_Msk >> R_I3C0_STDBR_SBRLP_Pos) | 
|  | #define I3C_RENESAS_RA_SBRHO_MAX        (R_I3C0_STDBR_SBRHO_Msk >> R_I3C0_STDBR_SBRHO_Pos) | 
|  | #define I3C_RENESAS_RA_SBRLO_MAX        (R_I3C0_STDBR_SBRLO_Msk >> R_I3C0_STDBR_SBRLO_Pos) | 
|  |  | 
|  | /* Specific data for clock settings */ | 
|  | typedef enum { | 
|  | RENESAS_RA_I3C_SCL_PUSHPULL, | 
|  | RENESAS_RA_I3C_SCL_OPENDRAIN, | 
|  | } i3c_renesas_ra_i3c_scl_mode; | 
|  |  | 
|  | struct i3c_renesas_ra_scl_period { | 
|  | uint32_t bitrate;                 /* Desired bitrate value */ | 
|  | uint8_t divider;                  /* Only meaning in standard opendrain */ | 
|  | i3c_renesas_ra_i3c_scl_mode mode; /* SCL push-pull/opendrain mode */ | 
|  | uint32_t t_high_ns;               /* SCL Logic High Time in nanoseconds */ | 
|  | uint32_t t_low_ns;                /* SCL Logic High Time in nanoseconds */ | 
|  | uint32_t t_rising_ns;             /* SCL Logic Rising Time in nanoseconds */ | 
|  | uint32_t t_falling_ns;            /* SCL Logic Falling Time in nanoseconds */ | 
|  | uint16_t high;                    /* Count value of the high-level period of SCL clock */ | 
|  | uint16_t low;                     /* Count value of the low-level period of SCL clock */ | 
|  | uint16_t h_max;                   /* max count value of the high level in register */ | 
|  | uint16_t l_max;                   /* max count value of the low level in register */ | 
|  | }; | 
|  |  | 
|  | struct i3c_renesas_ra_dev_info { | 
|  | uint8_t static_address; | 
|  | uint8_t dynamic_address; | 
|  | uint8_t active; | 
|  | }; | 
|  |  | 
|  | /* i3c device data and config*/ | 
|  | struct i3c_renesas_ra_data { | 
|  | struct i3c_driver_data common; /* I3C driver data */ | 
|  | struct k_mutex bus_lock;       /* Used for bus protection */ | 
|  | struct k_sem daa_end; | 
|  | struct k_sem ccc_end; | 
|  | struct k_sem xfer_end; | 
|  | uint32_t num_xfer; | 
|  | uint32_t cb_status; | 
|  | i3c_bitrate_mode_t i3c_mode; | 
|  | struct i3c_renesas_ra_dev_info *device_info; | 
|  | i3c_instance_ctrl_t *fsp_ctrl;         /* FSP control block */ | 
|  | i3c_cfg_t *fsp_cfg;                    /* FSP configuration block  */ | 
|  | i3c_device_cfg_t *fsp_master_cfg;      /* FSP master configuration */ | 
|  | i3c_device_table_cfg_t *fsp_dev_table; /* DAT setting scheme */ | 
|  | enum i3c_bus_mode mode; | 
|  | bool bus_configured;     /* true if bus had been configured */ | 
|  | bool skip_address_phase; /* true to skip address phase handle */ | 
|  | uint8_t address_phase_count; | 
|  | }; | 
|  |  | 
|  | struct i3c_renesas_ra_config { | 
|  | struct i3c_driver_config common; | 
|  | const struct pinctrl_dev_config *pin_cfg;       /* Pin control */ | 
|  | const struct device *pclk_dev;                  /* Bus clock */ | 
|  | const struct device *tclk_dev;                  /* Transfer clock */ | 
|  | struct clock_control_ra_subsys_cfg pclk_subsys; /* Bus clock subsys */ | 
|  | struct clock_control_ra_subsys_cfg tclk_subsys; /* Transfer clock subsys */ | 
|  | void (*bus_enable_irq)(void); | 
|  | }; | 
|  |  | 
|  | /* HAL isr */ | 
|  | extern void i3c_resp_isr(void); | 
|  | extern void i3c_rx_isr(void); | 
|  | extern void i3c_tx_isr(void); | 
|  | extern void i3c_rcv_isr(void); | 
|  | extern void i3c_eei_isr(void); | 
|  |  | 
|  | static enum i3c_bus_mode i3c_renesas_ra_get_bus_mode(const struct i3c_dev_list *dev_list) | 
|  | { | 
|  | enum i3c_bus_mode mode = I3C_BUS_MODE_PURE; | 
|  |  | 
|  | for (int i = 0; i < dev_list->num_i2c; i++) { | 
|  | switch (I3C_LVR_I2C_DEV_IDX(dev_list->i2c[i].lvr)) { | 
|  | case I3C_LVR_I2C_DEV_IDX_0: | 
|  | if (mode < I3C_BUS_MODE_MIXED_FAST) { | 
|  | mode = I3C_BUS_MODE_MIXED_FAST; | 
|  | } | 
|  | break; | 
|  | case I3C_LVR_I2C_DEV_IDX_1: | 
|  | if (mode < I3C_BUS_MODE_MIXED_LIMITED) { | 
|  | mode = I3C_BUS_MODE_MIXED_LIMITED; | 
|  | } | 
|  | break; | 
|  | case I3C_LVR_I2C_DEV_IDX_2: | 
|  | if (mode < I3C_BUS_MODE_MIXED_SLOW) { | 
|  | mode = I3C_BUS_MODE_MIXED_SLOW; | 
|  | } | 
|  | break; | 
|  | default: | 
|  | mode = I3C_BUS_MODE_INVALID; | 
|  | break; | 
|  | } | 
|  | } | 
|  | return mode; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_address_slots_init(const struct device *dev) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | uint8_t controller_da; | 
|  | int ret = 0; | 
|  |  | 
|  | ret = i3c_addr_slots_init(dev); | 
|  | if (ret) { | 
|  | LOG_ERR("Apply i3c_addr_slots_init() fail %d", ret); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | if (config->common.primary_controller_da) { | 
|  | if (!i3c_addr_slots_is_free(&data->common.attached_dev.addr_slots, | 
|  | config->common.primary_controller_da)) { | 
|  | controller_da = i3c_addr_slots_next_free_find( | 
|  | &data->common.attached_dev.addr_slots, 0); | 
|  | LOG_WRN("%s: 0x%02x DA selected for controller as 0x%02x is unavailable", | 
|  | dev->name, controller_da, config->common.primary_controller_da); | 
|  | } else { | 
|  | controller_da = config->common.primary_controller_da; | 
|  | } | 
|  | } else { | 
|  | controller_da = | 
|  | i3c_addr_slots_next_free_find(&data->common.attached_dev.addr_slots, 0); | 
|  | } | 
|  | if (controller_da == 0) { | 
|  | return -ENOSPC; | 
|  | } | 
|  | /* Set master address before configuring bus */ | 
|  | data->fsp_master_cfg->dynamic_address = controller_da; | 
|  | /* Mark the address as I3C device */ | 
|  | i3c_addr_slots_mark_i3c(&data->common.attached_dev.addr_slots, controller_da); | 
|  |  | 
|  | LOG_DBG("Controller address: 0x%02X", controller_da); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_device_index_find(const struct device *dev, uint8_t addr, bool i2c_dev) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | int index = -1; | 
|  |  | 
|  | /* Find device index */ | 
|  | if (i2c_dev) { | 
|  | for (int i = I3C_RENESAS_RA_DATBAS_NUM - 1; i >= 0; i--) { | 
|  | if (data->device_info[i].static_address == addr) { | 
|  | index = i; | 
|  | break; | 
|  | } | 
|  | } | 
|  | } else { | 
|  | for (int i = 0; i < I3C_RENESAS_RA_DATBAS_NUM; i++) { | 
|  | if (data->device_info[i].dynamic_address == addr) { | 
|  | index = i; | 
|  | break; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | return index; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_device_index_request(const struct device *dev, uint8_t addr, bool i2c_dev) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | int index = -1; | 
|  |  | 
|  | /* Find device index */ | 
|  | index = i3c_renesas_ra_device_index_find(dev, addr, i2c_dev); | 
|  |  | 
|  | /* Device not found, register new index */ | 
|  | if (index < 0) { | 
|  | if (i2c_dev) { | 
|  | for (int i = I3C_RENESAS_RA_DATBAS_NUM - 1; i >= 0; i--) { | 
|  | if (data->device_info[i].active == 0) { | 
|  | index = i; | 
|  | data->device_info[i].static_address = addr; | 
|  | data->device_info[i].active = 1; | 
|  | break; | 
|  | } | 
|  | } | 
|  | } else { | 
|  | for (int i = 0; i < I3C_RENESAS_RA_DATBAS_NUM; i++) { | 
|  | if (data->device_info[i].active == 0) { | 
|  | index = i; | 
|  | data->device_info[i].dynamic_address = addr; | 
|  | data->device_info[i].active = 1; | 
|  | break; | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | return index; | 
|  | } | 
|  |  | 
|  | static void i3c_renesas_ra_handle_address_phase(const struct device *dev, | 
|  | i3c_slave_info_t const *daa_rx) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | struct i3c_device_desc *target; | 
|  | int target_index = -1; | 
|  | uint8_t dyn_addr = 0; | 
|  | int ret = 0; | 
|  | i3c_device_table_cfg_t device_table = {0}; | 
|  |  | 
|  | uint64_t pid = sys_get_be48(&daa_rx->pid[0]); | 
|  |  | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  |  | 
|  | /* Find device in the device list, assign a dynamic address */ | 
|  | ret = i3c_dev_list_daa_addr_helper(&data->common.attached_dev.addr_slots, | 
|  | &config->common.dev_list, pid, false, false, &target, | 
|  | &dyn_addr); | 
|  | if (ret) { | 
|  | LOG_DBG("Assign new DA error"); | 
|  | goto add_phase_exit; | 
|  | } | 
|  |  | 
|  | /* Update target descriptor */ | 
|  | target->dynamic_addr = dyn_addr; | 
|  | target->bcr = daa_rx->bcr; | 
|  | target->dcr = daa_rx->dcr; | 
|  |  | 
|  | /* Request index for this target */ | 
|  | target_index = i3c_renesas_ra_device_index_request(dev, dyn_addr, false); | 
|  | if (target_index < 0) { | 
|  | ret = -ENODEV; | 
|  | goto add_phase_exit; | 
|  | } | 
|  |  | 
|  | /* Mark the address as used */ | 
|  | i3c_addr_slots_mark_i3c(&data->common.attached_dev.addr_slots, dyn_addr); | 
|  |  | 
|  | /* Mark the static address as free */ | 
|  | if ((target != NULL) && (target->static_addr != 0U) && (dyn_addr != target->static_addr)) { | 
|  | i3c_addr_slots_mark_free(&data->common.attached_dev.addr_slots, | 
|  | target->static_addr); | 
|  | } | 
|  |  | 
|  | /* Update device map */ | 
|  | data->device_info[target_index].dynamic_address = dyn_addr; | 
|  | data->device_info[target_index].active = 1; | 
|  |  | 
|  | /* Prepare device table before launching DAA */ | 
|  | device_table.dynamic_address = dyn_addr; | 
|  | device_table.static_address = 0x00; | 
|  | device_table.device_protocol = I3C_DEVICE_PROTOCOL_I3C; | 
|  | device_table.ibi_accept = false; | 
|  | device_table.ibi_payload = false; | 
|  | device_table.master_request_accept = false; | 
|  |  | 
|  | /* Add this device to DAT */ | 
|  | fsp_err = R_I3C_MasterDeviceTableSet(data->fsp_ctrl, target_index, &device_table); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto add_phase_exit; | 
|  | } | 
|  |  | 
|  | add_phase_exit: | 
|  | if (ret == 0) { | 
|  | LOG_DBG("Attach PID[0x%016llX] DA[0x%02X] SA[0x%02X] to DAT%d", target->pid, | 
|  | target->dynamic_addr, target->static_addr, target_index); | 
|  | } else { | 
|  | LOG_DBG("DAA address phase error"); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void i3c_renesas_ra_hal_callback(i3c_callback_args_t const *const p_args) | 
|  | { | 
|  | const struct device *dev = (const struct device *)p_args->p_context; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  |  | 
|  | data->cb_status = p_args->event_status; | 
|  |  | 
|  | switch (p_args->event) { | 
|  | case I3C_EVENT_ENTDAA_ADDRESS_PHASE: | 
|  | if (!data->skip_address_phase) { | 
|  | i3c_renesas_ra_handle_address_phase(dev, p_args->p_slave_info); | 
|  | data->address_phase_count++; | 
|  | } | 
|  | break; | 
|  |  | 
|  | case I3C_EVENT_ADDRESS_ASSIGNMENT_COMPLETE: | 
|  | k_sem_give(&data->daa_end); | 
|  | break; | 
|  |  | 
|  | case I3C_EVENT_READ_COMPLETE: | 
|  | __fallthrough; | 
|  | case I3C_EVENT_WRITE_COMPLETE: | 
|  | data->num_xfer = p_args->transfer_size; | 
|  | k_sem_give(&data->xfer_end); | 
|  | break; | 
|  |  | 
|  | case I3C_EVENT_COMMAND_COMPLETE: | 
|  | data->num_xfer = p_args->transfer_size; | 
|  | k_sem_give(&data->ccc_end); | 
|  | break; | 
|  |  | 
|  | default: | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Specific functions */ | 
|  | static int calculate_period(uint32_t tclk_rate, struct i3c_renesas_ra_scl_period *period) | 
|  | { | 
|  | double divider = period->divider; | 
|  | double t_rising_ns = period->t_rising_ns; | 
|  | double t_falling_ns = period->t_falling_ns; | 
|  | double t_high_ns = period->t_high_ns; | 
|  | double bitrate = period->bitrate; | 
|  | int mode = period->mode; | 
|  |  | 
|  | uint32_t scl_cnt_high = (double)tclk_rate * t_high_ns / ((double)1e9 * divider); | 
|  | double actual_t_high_ns = (double)scl_cnt_high * (double)1e9 * divider / (double)tclk_rate; | 
|  | double t_low_ns = ((double)1e9 / bitrate) - actual_t_high_ns - t_rising_ns - t_falling_ns; | 
|  |  | 
|  | if (mode == RENESAS_RA_I3C_SCL_OPENDRAIN && t_low_ns < 200.0) { | 
|  | LOG_DBG("SCL Low period must be greater than or equal to 200 nanoseconds."); | 
|  | } | 
|  | if (mode == RENESAS_RA_I3C_SCL_PUSHPULL && t_low_ns < 24.0) { | 
|  | LOG_DBG("SCL Low period must be greater than or equal to 24 nanoseconds."); | 
|  | } | 
|  | uint32_t scl_cnt_low = t_low_ns * (double)tclk_rate / ((double)1e9 * divider); | 
|  |  | 
|  | if (scl_cnt_high > period->h_max || scl_cnt_low > period->l_max || scl_cnt_high == 0 || | 
|  | scl_cnt_low == 0) { | 
|  | return -EINVAL; | 
|  | } | 
|  | period->t_high_ns = actual_t_high_ns; | 
|  | period->t_low_ns = t_low_ns; | 
|  | period->high = scl_cnt_high; | 
|  | period->low = scl_cnt_low; | 
|  | period->bitrate = tclk_rate / ((scl_cnt_high + scl_cnt_low) * divider); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_bitrate_setup(const struct device *dev) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | i3c_extended_cfg_t *p_extend = (i3c_extended_cfg_t *)data->fsp_cfg->p_extend; | 
|  | i3c_bitrate_settings_t *bitrate_setting = &p_extend->bitrate_settings; | 
|  | uint32_t i3c_bitrate = data->common.ctrl_config.scl.i3c; | 
|  | uint32_t i2c_bitrate = data->common.ctrl_config.scl.i2c; | 
|  | uint8_t dsbrpo = 0; | 
|  | uint32_t tclk_rate; | 
|  | uint32_t pclk_rate; | 
|  | int ret = 0; | 
|  |  | 
|  | struct i3c_renesas_ra_scl_period std_opendrain; | 
|  | struct i3c_renesas_ra_scl_period std_pushpull; | 
|  | struct i3c_renesas_ra_scl_period ext_opendrain; | 
|  | struct i3c_renesas_ra_scl_period ext_pushpull; | 
|  |  | 
|  | if (i3c_bitrate < i2c_bitrate) { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | /* Use STDBR for I2C and I3C transfers */ | 
|  | std_opendrain.bitrate = i2c_bitrate; | 
|  | std_opendrain.divider = 1; | 
|  | std_opendrain.mode = RENESAS_RA_I3C_SCL_OPENDRAIN; | 
|  | std_opendrain.t_high_ns = I3C_RENESAS_RA_OD_HIGH_NS; | 
|  | std_opendrain.t_rising_ns = I3C_RENESAS_RA_OD_RISING_NS; | 
|  | std_opendrain.t_falling_ns = I3C_RENESAS_RA_OD_FALLING_NS; | 
|  | std_opendrain.h_max = I3C_RENESAS_RA_SBRHO_MAX; | 
|  | std_opendrain.l_max = I3C_RENESAS_RA_SBRLO_MAX; | 
|  |  | 
|  | std_pushpull.bitrate = i3c_bitrate; | 
|  | std_pushpull.divider = 1; | 
|  | std_pushpull.mode = RENESAS_RA_I3C_SCL_PUSHPULL; | 
|  | std_pushpull.t_high_ns = I3C_RENESAS_RA_PP_HIGH_NS; | 
|  | std_pushpull.t_rising_ns = I3C_RENESAS_RA_PP_RISING_NS; | 
|  | std_pushpull.t_falling_ns = I3C_RENESAS_RA_PP_FALLING_NS; | 
|  | std_pushpull.h_max = I3C_RENESAS_RA_SBRHP_MAX; | 
|  | std_pushpull.l_max = I3C_RENESAS_RA_SBRLP_MAX; | 
|  |  | 
|  | /* Set EXTBR */ | 
|  | ext_opendrain.bitrate = I3C_RENESAS_RA_TYP_OD_RATE; | 
|  | ext_opendrain.divider = 1; | 
|  | ext_opendrain.mode = RENESAS_RA_I3C_SCL_OPENDRAIN; | 
|  | ext_opendrain.t_high_ns = I3C_RENESAS_RA_OD_HIGH_NS; | 
|  | ext_opendrain.t_rising_ns = I3C_RENESAS_RA_OD_RISING_NS; | 
|  | ext_opendrain.t_falling_ns = I3C_RENESAS_RA_OD_FALLING_NS; | 
|  | ext_opendrain.h_max = I3C_RENESAS_RA_EBRHO_MAX; | 
|  | ext_opendrain.l_max = I3C_RENESAS_RA_EBRLO_MAX; | 
|  |  | 
|  | ext_pushpull.bitrate = I3C_RENESAS_RA_TYP_PP_RATE; | 
|  | ext_pushpull.divider = 1; | 
|  | ext_pushpull.mode = RENESAS_RA_I3C_SCL_PUSHPULL; | 
|  | ext_pushpull.t_high_ns = I3C_RENESAS_RA_PP_HIGH_NS; | 
|  | ext_pushpull.t_rising_ns = I3C_RENESAS_RA_PP_RISING_NS; | 
|  | ext_pushpull.t_falling_ns = I3C_RENESAS_RA_PP_FALLING_NS; | 
|  | ext_pushpull.h_max = I3C_RENESAS_RA_EBRHP_MAX; | 
|  | ext_pushpull.l_max = I3C_RENESAS_RA_EBRLP_MAX; | 
|  |  | 
|  | /* Save bitrate mode */ | 
|  | data->i3c_mode = I3C_BITRATE_MODE_I3C_SDR0_STDBR; | 
|  |  | 
|  | clock_control_get_rate(config->tclk_dev, (clock_control_subsys_t)&config->tclk_subsys, | 
|  | &tclk_rate); | 
|  | clock_control_get_rate(config->pclk_dev, (clock_control_subsys_t)&config->pclk_subsys, | 
|  | &pclk_rate); | 
|  | LOG_DBG("Clock rate I3CCLK %d PCLK %d", tclk_rate, pclk_rate); | 
|  |  | 
|  | /*  Relation between the bus clock (PCLK) and transfer clock(TCLK) */ | 
|  | if (pclk_rate > tclk_rate || pclk_rate < tclk_rate / 2) { | 
|  | ret = -EINVAL; | 
|  | goto bitrate_exit; | 
|  | } | 
|  |  | 
|  | /* Calculate period setting for scl in standard opendrain modes */ | 
|  | ret = calculate_period(tclk_rate, &std_opendrain); | 
|  | if (ret) { | 
|  | /* | 
|  | * Try resolve with dsbrpro=1, | 
|  | * double scl bitrate for standard opendrain mode | 
|  | */ | 
|  | dsbrpo = 1; | 
|  | std_opendrain.divider = 2; | 
|  | ret = calculate_period(tclk_rate, &std_opendrain); | 
|  | } | 
|  | if (ret) { | 
|  | goto bitrate_exit; | 
|  | } | 
|  |  | 
|  | /* Calculate period setting for scl in standard pushpull modes */ | 
|  | ret = calculate_period(tclk_rate, &std_pushpull); | 
|  | if (ret) { | 
|  | goto bitrate_exit; | 
|  | } | 
|  |  | 
|  | /* Calculate period setting for scl in extexnded opendrain modes */ | 
|  | ret = calculate_period(tclk_rate, &ext_opendrain); | 
|  | if (ret) { | 
|  | goto bitrate_exit; | 
|  | } | 
|  |  | 
|  | /* Calculate period setting for scl in extexnded pushpull modes */ | 
|  | ret = calculate_period(tclk_rate, &ext_pushpull); | 
|  | if (ret) { | 
|  | goto bitrate_exit; | 
|  | } | 
|  |  | 
|  | LOG_DBG("actual I2C speed: %d Mbps", std_opendrain.bitrate); | 
|  | LOG_DBG("actual I3C speed: OD %d Mbps, PP %d Mbps", std_opendrain.bitrate, | 
|  | std_pushpull.bitrate); | 
|  |  | 
|  | bitrate_setting->stdbr = ((std_opendrain.high << R_I3C0_STDBR_SBRHO_Pos) | | 
|  | (std_opendrain.low << R_I3C0_STDBR_SBRLO_Pos)) | | 
|  | ((std_pushpull.high << R_I3C0_STDBR_SBRHP_Pos) | | 
|  | (std_pushpull.low << R_I3C0_STDBR_SBRLP_Pos)) | | 
|  | (dsbrpo << R_I3C0_STDBR_DSBRPO_Pos); | 
|  | bitrate_setting->extbr = ((ext_opendrain.high << R_I3C0_EXTBR_EBRHO_Pos) | | 
|  | (ext_opendrain.low << R_I3C0_EXTBR_EBRLO_Pos)) | | 
|  | ((ext_pushpull.high << R_I3C0_EXTBR_EBRHP_Pos) | | 
|  | (ext_pushpull.low << R_I3C0_EXTBR_EBRLP_Pos)); | 
|  |  | 
|  | bitrate_exit: | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | /* i3c interface */ | 
|  | static int i3c_renesas_ra_configure(const struct device *dev, enum i3c_config_type type, | 
|  | void *bus_config) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | struct i3c_config_controller *ctrler_cfg; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  | i3c_device_table_cfg_t device[I3C_RENESAS_RA_DATBAS_NUM]; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | switch (type) { | 
|  | case I3C_CONFIG_CONTROLLER: | 
|  | ctrler_cfg = bus_config; | 
|  | /* Unsupported mode */ | 
|  | if (ctrler_cfg->is_secondary || ctrler_cfg->supported_hdr) { | 
|  | ret = -ENOTSUP; | 
|  | goto configure_exit; | 
|  | } | 
|  |  | 
|  | if ((ctrler_cfg->scl.i2c == 0U) || (ctrler_cfg->scl.i3c == 0U)) { | 
|  | ret = -EINVAL; | 
|  | goto configure_exit; | 
|  | } | 
|  | /* Save bitrate setting to device data */ | 
|  | data->common.ctrl_config.scl.i3c = ctrler_cfg->scl.i3c; | 
|  | data->common.ctrl_config.scl.i2c = ctrler_cfg->scl.i2c; | 
|  |  | 
|  | /* Bitrate settings */ | 
|  | ret = i3c_renesas_ra_bitrate_setup(dev); | 
|  | if (ret) { | 
|  | LOG_ERR("Failed to resolve bitrate settings"); | 
|  | goto configure_exit; | 
|  | } | 
|  |  | 
|  | /* retain DAT */ | 
|  | for (int i = 0; i < I3C_RENESAS_RA_DATBAS_NUM; i++) { | 
|  | if (!data->device_info[i].active) { | 
|  | continue; | 
|  | } | 
|  | fsp_err = | 
|  | R_I3C_MasterDeviceTableGet(data->fsp_ctrl, (uint32_t)i, &device[i]); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | LOG_DBG("retain DAT failed, err=%d", ret); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Close bus*/ | 
|  | if (data->fsp_ctrl->open == I3C_RENESAS_RA_BUS_OPEN) { | 
|  | fsp_err = R_I3C_Close(data->fsp_ctrl); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | LOG_ERR("Failed to init i3c bus, err=%d", fsp_err); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Open I3C bus */ | 
|  | data->fsp_cfg->device_type = I3C_DEVICE_TYPE_MAIN_MASTER; | 
|  | fsp_err = R_I3C_Open(data->fsp_ctrl, data->fsp_cfg); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | LOG_ERR("Failed to init i3c bus, err=%d", fsp_err); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  |  | 
|  | /* reload DAT */ | 
|  | for (int i = 0; i < I3C_RENESAS_RA_DATBAS_NUM; i++) { | 
|  | if (!data->device_info[i].active) { | 
|  | continue; | 
|  | } | 
|  | fsp_err = | 
|  | R_I3C_MasterDeviceTableSet(data->fsp_ctrl, (uint32_t)i, &device[i]); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | LOG_DBG("reload DAT failed %d, err=%d", i, ret); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Set this device as master role */ | 
|  | fsp_err = R_I3C_DeviceCfgSet(data->fsp_ctrl, data->fsp_master_cfg); | 
|  | if (ret) { | 
|  | LOG_ERR("Failed to init i3c controller, err=%d", ret); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  |  | 
|  | /* Enable bus to apply bitrate setting */ | 
|  | fsp_err = R_I3C_Enable(data->fsp_ctrl); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | LOG_ERR("Failed to enable bus, err=%d", fsp_err); | 
|  | ret = -EIO; | 
|  | goto configure_exit; | 
|  | } | 
|  | break; | 
|  |  | 
|  | case I3C_CONFIG_TARGET: | 
|  | /* TODO: target mode */ | 
|  | ret = -ENOTSUP; | 
|  | break; | 
|  |  | 
|  | default: | 
|  | ret = -ENOTSUP; | 
|  | break; | 
|  | } | 
|  |  | 
|  | configure_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_config_get(const struct device *dev, enum i3c_config_type type, | 
|  | void *bus_config) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  |  | 
|  | if (type == I3C_CONFIG_CONTROLLER) { | 
|  | #ifdef CONFIG_I3C_CONTROLLER | 
|  | (void)memcpy(bus_config, &data->common.ctrl_config, | 
|  | sizeof(data->common.ctrl_config)); | 
|  | #else | 
|  | return -ENOTSUP; | 
|  | #endif /* CONFIG_I3C_CONTROLLER */ | 
|  | } else { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_attach_i3c_device(const struct device *dev, | 
|  | struct i3c_device_desc *target) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int target_index = -1; | 
|  | int ret = 0; | 
|  | i3c_device_table_cfg_t device_table = {0}; | 
|  |  | 
|  | if (target->dynamic_addr == 0 && target->static_addr == 0) { | 
|  | /* | 
|  | * Do notthing. | 
|  | * This case called from address slots init process. | 
|  | */ | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | /* Create scheme for saving device in DAT */ | 
|  | device_table.dynamic_address = target->dynamic_addr ? target->dynamic_addr : 0x00; | 
|  | device_table.static_address = target->static_addr ? target->static_addr : 0x00; | 
|  | device_table.device_protocol = I3C_DEVICE_PROTOCOL_I3C; | 
|  | device_table.ibi_accept = false; | 
|  | device_table.ibi_payload = false; | 
|  | device_table.master_request_accept = false; | 
|  |  | 
|  | target_index = i3c_renesas_ra_device_index_request( | 
|  | dev, (target->dynamic_addr) ? target->dynamic_addr : target->static_addr, false); | 
|  | if (target_index < 0) { | 
|  | ret = -ERANGE; | 
|  | goto attach_i3c_exit; | 
|  | } | 
|  |  | 
|  | fsp_err = R_I3C_MasterDeviceTableSet(data->fsp_ctrl, target_index, &device_table); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto attach_i3c_exit; | 
|  | } | 
|  |  | 
|  | attach_i3c_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | if (ret == 0) { | 
|  | LOG_DBG("Attach PID[0x%016llX] DA[0x%02X] SA[0x%02X] to DAT%d", target->pid, | 
|  | target->dynamic_addr, target->static_addr, target_index); | 
|  | } | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_reattach_i3c_device(const struct device *dev, | 
|  | struct i3c_device_desc *target, uint8_t old_dyn_addr) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int target_index = -1; | 
|  | int ret = 0; | 
|  | i3c_device_table_cfg_t device_table = {0}; | 
|  |  | 
|  | if (target->dynamic_addr == 0 && target->static_addr == 0) { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | target_index = i3c_renesas_ra_device_index_find(dev, old_dyn_addr, false); | 
|  | if (target_index < 0) { | 
|  | ret = -ENODEV; | 
|  | goto reattach_i3c_exit; | 
|  | } | 
|  |  | 
|  | fsp_err = R_I3C_MasterDeviceTableGet(data->fsp_ctrl, target_index, &device_table); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto reattach_i3c_exit; | 
|  | } | 
|  | device_table.dynamic_address = target->dynamic_addr ? target->dynamic_addr : 0x00; | 
|  | device_table.static_address = target->static_addr ? target->static_addr : 0x00; | 
|  |  | 
|  | fsp_err = R_I3C_MasterDeviceTableSet(data->fsp_ctrl, target_index, &device_table); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto reattach_i3c_exit; | 
|  | } | 
|  |  | 
|  | reattach_i3c_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | if (ret == 0) { | 
|  | LOG_DBG("Reattach PID[0x%016llX] DA[0x%02X] SA[0x%02X] to DAT%d", target->pid, | 
|  | target->dynamic_addr, target->static_addr, target_index); | 
|  | } | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_detach_i3c_device(const struct device *dev, | 
|  | struct i3c_device_desc *target) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  | int target_index = -1; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | target_index = i3c_renesas_ra_device_index_find( | 
|  | dev, (target->dynamic_addr) ? target->dynamic_addr : target->static_addr, false); | 
|  | if (target_index < 0) { | 
|  | ret = -ERANGE; | 
|  | goto detach_i3c_exit; | 
|  | } | 
|  |  | 
|  | fsp_err = R_I3C_MasterDeviceTableReset(data->fsp_ctrl, target_index); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto detach_i3c_exit; | 
|  | } | 
|  |  | 
|  | detach_i3c_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | if (ret == 0) { | 
|  | LOG_DBG("Detach PID[0x%016llX] from Device Table", target->pid); | 
|  | } | 
|  |  | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_do_daa(const struct device *dev) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | /* If num_i3c is 0, set num_dev to 1 for handling daa called from hot-join IBI */ | 
|  | uint32_t num_dev = (config->common.dev_list.num_i3c) ? config->common.dev_list.num_i3c : 1; | 
|  | uint32_t start_index = 0; | 
|  |  | 
|  | /* Start DAA without address asignment to get device info */ | 
|  | data->address_phase_count = 0; | 
|  | data->skip_address_phase = false; | 
|  | fsp_err = R_I3C_DynamicAddressAssignmentStart(data->fsp_ctrl, I3C_CCC_ENTDAA, start_index, | 
|  | num_dev); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->daa_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | if (data->address_phase_count == 0) { | 
|  | /* No device apply DA */ | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | /* Start DAA again to apply new addresses */ | 
|  | data->skip_address_phase = true; | 
|  | fsp_err = R_I3C_DynamicAddressAssignmentStart(data->fsp_ctrl, I3C_CCC_ENTDAA, start_index, | 
|  | num_dev); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->daa_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | if (data->cb_status != RSP_STT_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto daa_exit; | 
|  | } | 
|  |  | 
|  | goto daa_exit; | 
|  |  | 
|  | daa_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | LOG_DBG("DAA %s", ret ? "failed" : "complete"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_do_dasa(const struct device *dev) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | fsp_err = R_I3C_DynamicAddressAssignmentStart(data->fsp_ctrl, I3C_CCC_SETDASA, 0, 1); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto dasa_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->daa_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto dasa_exit; | 
|  | } | 
|  |  | 
|  | if (data->cb_status != RSP_STT_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto dasa_exit; | 
|  | } | 
|  |  | 
|  | goto dasa_exit; | 
|  |  | 
|  | dasa_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | LOG_DBG("DASA %s", ret ? "failed" : "complete"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_broadcast_ccc(const struct device *dev, struct i3c_ccc_payload *payload) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  | i3c_command_descriptor_t cmd = {0}; | 
|  |  | 
|  | cmd.command_code = payload->ccc.id; | 
|  | cmd.restart = 0; | 
|  | cmd.rnw = 0; /* Broadcast is always write */ | 
|  | cmd.p_buffer = (payload->ccc.data_len) ? payload->ccc.data : NULL; | 
|  | cmd.length = (uint32_t)payload->ccc.data_len; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | /* Select bitrate mode, ignore target index */ | 
|  | fsp_err = R_I3C_DeviceSelect(data->fsp_ctrl, 0x00, data->i3c_mode); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto bc_ccc_exit; | 
|  | } | 
|  |  | 
|  | fsp_err = R_I3C_CommandSend(data->fsp_ctrl, &cmd); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto bc_ccc_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->ccc_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto bc_ccc_exit; | 
|  | } | 
|  |  | 
|  | if (data->cb_status != RSP_STT_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto bc_ccc_exit; | 
|  | } | 
|  |  | 
|  | payload->ccc.num_xfer = data->num_xfer; | 
|  |  | 
|  | bc_ccc_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | LOG_DBG("broadcast CCC[0x%02X] %s", payload->ccc.id, ret ? "failed" : "complete"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_direct_ccc(const struct device *dev, struct i3c_ccc_payload *payload) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int ret = 0; | 
|  | int num_targets = payload->targets.num_targets; | 
|  | int target_index = -1; | 
|  | i3c_command_descriptor_t cmd = {0}; | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | for (int i = 0; i < num_targets; i++) { | 
|  | struct i3c_ccc_target_payload *tg_payload = &payload->targets.payloads[i]; | 
|  |  | 
|  | cmd.command_code = payload->ccc.id; | 
|  | cmd.restart = (i == num_targets - 1) ? 0 : 1; | 
|  | cmd.rnw = tg_payload->rnw; | 
|  | cmd.p_buffer = tg_payload->data; | 
|  | cmd.length = (uint32_t)tg_payload->data_len; | 
|  |  | 
|  | target_index = i3c_renesas_ra_device_index_find(dev, tg_payload->addr, false); | 
|  | if (target_index < 0) { | 
|  | ret = -ENODEV; | 
|  | goto dr_ccc_exit; | 
|  | } | 
|  |  | 
|  | /* Select target index and bitrate mode */ | 
|  | fsp_err = R_I3C_DeviceSelect(data->fsp_ctrl, target_index, data->i3c_mode); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto dr_ccc_exit; | 
|  | } | 
|  |  | 
|  | payload->ccc.num_xfer = 0; | 
|  |  | 
|  | fsp_err = R_I3C_CommandSend(data->fsp_ctrl, &cmd); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto dr_ccc_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->ccc_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto dr_ccc_exit; | 
|  | } | 
|  |  | 
|  | if (data->cb_status != RSP_STT_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto dr_ccc_exit; | 
|  | } | 
|  |  | 
|  | tg_payload->num_xfer = data->num_xfer; | 
|  | } | 
|  |  | 
|  | dr_ccc_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | LOG_DBG("direct CCC[0x%02X] %s", payload->ccc.id, ret ? "failed" : "complete"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | /* Common command code Method */ | 
|  | static int i3c_renesas_ra_do_ccc(const struct device *dev, struct i3c_ccc_payload *payload) | 
|  | { | 
|  | if (dev == NULL || payload == NULL || | 
|  | (payload->ccc.data_len > 0 && payload->ccc.data == NULL)) { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | if (payload->ccc.id == I3C_CCC_SETDASA) { | 
|  | /* SETDASA CCC is not implemented as normal CCC */ | 
|  | return i3c_renesas_ra_do_dasa(dev); | 
|  | } | 
|  |  | 
|  | if (i3c_ccc_is_payload_broadcast(payload)) { | 
|  | return i3c_renesas_ra_broadcast_ccc(dev, payload); | 
|  | } else { | 
|  | return i3c_renesas_ra_direct_ccc(dev, payload); | 
|  | } | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_i3c_transfer(const struct device *dev, struct i3c_device_desc *target, | 
|  | struct i3c_msg *msgs, uint8_t num_msgs) | 
|  | { | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | fsp_err_t fsp_err = FSP_SUCCESS; | 
|  | int target_index = -1; | 
|  | int ret = 0; | 
|  |  | 
|  | if (msgs == NULL || target->dynamic_addr == 0U) { | 
|  | return -EINVAL; | 
|  | } | 
|  |  | 
|  | /* Verify all messages */ | 
|  | for (size_t i = 0; i < num_msgs; i++) { | 
|  | if (msgs[i].buf == NULL) { | 
|  | return -EINVAL; | 
|  | } | 
|  | if ((msgs[i].flags & I3C_MSG_HDR) && (msgs[i].hdr_mode != 0)) { | 
|  | return -ENOTSUP; | 
|  | } | 
|  | } | 
|  |  | 
|  | k_mutex_lock(&data->bus_lock, K_FOREVER); | 
|  |  | 
|  | target_index = i3c_renesas_ra_device_index_find( | 
|  | dev, (target->dynamic_addr) ? target->dynamic_addr : target->static_addr, false); | 
|  | if (target_index < 0) { | 
|  | return -ENODEV; | 
|  | } | 
|  |  | 
|  | /* Select target index and bitrate mode */ | 
|  | fsp_err = R_I3C_DeviceSelect(data->fsp_ctrl, target_index, data->i3c_mode); | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto i3c_xfer_exit; | 
|  | } | 
|  |  | 
|  | for (int i = 0; i < num_msgs; i++) { | 
|  | bool msg_rst = (msgs[i].flags & I3C_MSG_STOP) ? false : true; | 
|  |  | 
|  | if (msgs[i].flags & I3C_MSG_READ) { | 
|  | fsp_err = R_I3C_Read(data->fsp_ctrl, msgs[i].buf, msgs[i].len, msg_rst); | 
|  | } else { | 
|  | fsp_err = R_I3C_Write(data->fsp_ctrl, msgs[i].buf, msgs[i].len, msg_rst); | 
|  | } | 
|  | msgs[i].num_xfer = data->num_xfer; | 
|  | if (fsp_err != FSP_SUCCESS) { | 
|  | ret = -EIO; | 
|  | goto i3c_xfer_exit; | 
|  | } | 
|  |  | 
|  | ret = k_sem_take(&data->xfer_end, I3C_RENESAS_RA_TRANSFER_TIMEOUT); | 
|  | if (ret == -EAGAIN) { | 
|  | ret = -ETIMEDOUT; | 
|  | goto i3c_xfer_exit; | 
|  | } | 
|  |  | 
|  | if (data->cb_status != RSP_STT_SUCCESS && data->cb_status != RSP_STT_ABORTED) { | 
|  | ret = -EIO; | 
|  | goto i3c_xfer_exit; | 
|  | } | 
|  | } | 
|  | goto i3c_xfer_exit; | 
|  |  | 
|  | i3c_xfer_exit: | 
|  | k_mutex_unlock(&data->bus_lock); | 
|  |  | 
|  | LOG_DBG("xfer I3C[0x%02X] %s", target->dynamic_addr, ret ? "failed" : "complete"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static struct i3c_device_desc *i3c_renesas_ra_device_find(const struct device *dev, | 
|  | const struct i3c_device_id *id) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  |  | 
|  | return i3c_dev_list_find(&config->common.dev_list, id); | 
|  | } | 
|  |  | 
|  | static int i3c_renesas_ra_init(const struct device *dev) | 
|  | { | 
|  | const struct i3c_renesas_ra_config *config = dev->config; | 
|  | struct i3c_renesas_ra_data *data = dev->data; | 
|  | int ret = 0; | 
|  |  | 
|  | k_sem_init(&data->daa_end, 0, 1); | 
|  | k_sem_init(&data->ccc_end, 0, 1); | 
|  | k_sem_init(&data->xfer_end, 0, 1); | 
|  | k_mutex_init(&data->bus_lock); | 
|  |  | 
|  | ret = pinctrl_apply_state(config->pin_cfg, PINCTRL_STATE_DEFAULT); | 
|  | if (ret) { | 
|  | LOG_ERR("Apply pinctrl fail %d", ret); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | ret = clock_control_on(config->pclk_dev, (clock_control_subsys_t)&config->pclk_subsys); | 
|  | if (ret) { | 
|  | LOG_ERR("Failed to start i3c bus clock, err=%d", ret); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | config->bus_enable_irq(); | 
|  |  | 
|  | #ifdef CONFIG_I3C_CONTROLLER | 
|  | data->mode = i3c_renesas_ra_get_bus_mode(&config->common.dev_list); | 
|  |  | 
|  | /* Clear bus internal device info */ | 
|  | memset(data->device_info, 0x00, | 
|  | sizeof(struct i3c_renesas_ra_dev_info) * I3C_RENESAS_RA_DATBAS_NUM); | 
|  |  | 
|  | /* Init address slots */ | 
|  | ret = i3c_renesas_ra_address_slots_init(dev); | 
|  | if (ret) { | 
|  | LOG_ERR("Failed to set controller address, err=%d", ret); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | /* Configure bus */ | 
|  | if (i3c_configure(dev, I3C_CONFIG_CONTROLLER, &data->common.ctrl_config)) { | 
|  | LOG_ERR("Failed to configure bus"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | /* Check I3C is controller mode and target device exist in device tree */ | 
|  | if (config->common.dev_list.num_i3c > 0) { | 
|  | /* Perform bus initialization */ | 
|  | ret = i3c_bus_init(dev, &config->common.dev_list); | 
|  | if (ret) { | 
|  | LOG_ERR("Apply i3c_bus_init() fail %d", ret); | 
|  | return ret; | 
|  | } | 
|  | } | 
|  | #endif /* CONFIG_I3C_CONTROLLER */ | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | /* i3c device API */ | 
|  | static DEVICE_API(i3c, i3c_renesas_ra_api) = { | 
|  | .configure = i3c_renesas_ra_configure, | 
|  | .config_get = i3c_renesas_ra_config_get, | 
|  | .attach_i3c_device = i3c_renesas_ra_attach_i3c_device, | 
|  | .reattach_i3c_device = i3c_renesas_ra_reattach_i3c_device, | 
|  | .detach_i3c_device = i3c_renesas_ra_detach_i3c_device, | 
|  | .do_daa = i3c_renesas_ra_do_daa, | 
|  | .do_ccc = i3c_renesas_ra_do_ccc, | 
|  | .i3c_xfers = i3c_renesas_ra_i3c_transfer, | 
|  | .i3c_device_find = i3c_renesas_ra_device_find, | 
|  | #ifdef CONFIG_I3C_RTIO | 
|  | .iodev_submit = i3c_iodev_submit_fallback, | 
|  | #endif /* CONFIG_I3C_RTIO */ | 
|  | }; | 
|  |  | 
|  | #define I3C_RENESAS_RA_IRQ_EN(index, isr_name, isr_func, event_name)                               \ | 
|  | R_ICU->IELSR[DT_INST_IRQ_BY_NAME(index, isr_name, irq)] = BSP_PRV_IELS_ENUM(event_name);   \ | 
|  | IRQ_CONNECT(DT_INST_IRQ_BY_NAME(index, isr_name, irq),                                     \ | 
|  | DT_INST_IRQ_BY_NAME(index, isr_name, priority), isr_func,                      \ | 
|  | DEVICE_DT_INST_GET(index), 0);                                                 \ | 
|  | irq_enable(DT_INST_IRQ_BY_NAME(index, isr_name, irq)); | 
|  |  | 
|  | /* HAL Configurations */ | 
|  | #define I3C_RENESAS_RA_HAL_INIT(index)                                                             \ | 
|  | static i3c_instance_ctrl_t i3c##index##_ctrl;                                              \ | 
|  | static i3c_extended_cfg_t i3c##index##_cfg_extend = {                                      \ | 
|  | .bitrate_settings.stdbr = RESET_VALUE,                                             \ | 
|  | .bitrate_settings.extbr = RESET_VALUE,                                             \ | 
|  | .bitrate_settings.clock_stalling.assigned_address_phase_enable = RESET_VALUE,      \ | 
|  | .bitrate_settings.clock_stalling.transition_phase_enable = RESET_VALUE,            \ | 
|  | .bitrate_settings.clock_stalling.parity_phase_enable = RESET_VALUE,                \ | 
|  | .bitrate_settings.clock_stalling.ack_phase_enable = RESET_VALUE,                   \ | 
|  | .bitrate_settings.clock_stalling.clock_stalling_time = RESET_VALUE,                \ | 
|  | .ibi_control.hot_join_acknowledge = RESET_VALUE,                                   \ | 
|  | .ibi_control.notify_rejected_hot_join_requests = RESET_VALUE,                      \ | 
|  | .ibi_control.notify_rejected_mastership_requests = RESET_VALUE,                    \ | 
|  | .ibi_control.notify_rejected_interrupt_requests = RESET_VALUE,                     \ | 
|  | .bus_free_detection_time = I3C_RENESAS_RA_BUS_FREE_DETECTION_TIME,                 \ | 
|  | .bus_available_detection_time = I3C_RENESAS_RA_BUS_AVAILABLE_DETECTION_TIME,       \ | 
|  | .bus_idle_detection_time = I3C_RENESAS_RA_BUS_IDLE_DETECTION_TIME,                 \ | 
|  | .timeout_detection_enable = true,                                                  \ | 
|  | .slave_command_response_info = {0},                                                \ | 
|  | .resp_irq = DT_INST_IRQ_BY_NAME(index, resp, irq),                                 \ | 
|  | .rx_irq = DT_INST_IRQ_BY_NAME(index, rx, irq),                                     \ | 
|  | .tx_irq = DT_INST_IRQ_BY_NAME(index, tx, irq),                                     \ | 
|  | .rcv_irq = DT_INST_IRQ_BY_NAME(index, rcv, irq),                                   \ | 
|  | .ibi_irq = DT_INST_IRQ_BY_NAME(index, ibi, irq),                                   \ | 
|  | .eei_irq = DT_INST_IRQ_BY_NAME(index, eei, irq),                                   \ | 
|  | };                                                                                         \ | 
|  | static i3c_cfg_t i3c##index##_cfg = {                                                      \ | 
|  | .channel = DT_INST_PROP(index, channel),                                           \ | 
|  | .p_callback = &i3c_renesas_ra_hal_callback,                                        \ | 
|  | .p_context = DEVICE_DT_INST_GET(index),                                            \ | 
|  | .p_extend = &i3c##index##_cfg_extend,                                              \ | 
|  | };                                                                                         \ | 
|  | static i3c_device_cfg_t i3c##index##_master_cfg = {0};                                     \ | 
|  | static struct i3c_renesas_ra_dev_info i3c##index##_dev_inf[I3C_RENESAS_RA_DATBAS_NUM]; | 
|  |  | 
|  | /* Device Initialize */ | 
|  | #define I3C_RENESAS_RA_INIT(index)                                                                 \ | 
|  | I3C_RENESAS_RA_HAL_INIT(index);                                                            \ | 
|  | PINCTRL_DT_INST_DEFINE(index);                                                             \ | 
|  | static struct i3c_device_desc i3c##index##_renesas_ra_i3c_dev_list[] =                     \ | 
|  | I3C_DEVICE_ARRAY_DT_INST(index);                                                   \ | 
|  | static struct i3c_i2c_device_desc i3c##index##_renesas_ra_i2c_dev_list[] =                 \ | 
|  | I3C_I2C_DEVICE_ARRAY_DT_INST(index);                                               \ | 
|  | \ | 
|  | static void i3c##index##_renesas_ra_enable_irq(void)                                       \ | 
|  | {                                                                                          \ | 
|  | I3C_RENESAS_RA_IRQ_EN(index, resp, i3c_resp_isr, EVENT_I3C##index##_RESPONSE)      \ | 
|  | I3C_RENESAS_RA_IRQ_EN(index, rx, i3c_rx_isr, EVENT_I3C##index##_RX)                \ | 
|  | I3C_RENESAS_RA_IRQ_EN(index, tx, i3c_tx_isr, EVENT_I3C##index##_TX)                \ | 
|  | I3C_RENESAS_RA_IRQ_EN(index, rcv, i3c_rcv_isr, EVENT_I3C##index##_RCV_STATUS)      \ | 
|  | I3C_RENESAS_RA_IRQ_EN(index, eei, i3c_eei_isr, EVENT_I3C##index##_EEI)             \ | 
|  | }                                                                                          \ | 
|  | \ | 
|  | static struct i3c_renesas_ra_data i3c##index##_renesas_ra_data = {                         \ | 
|  | .common.ctrl_config.scl.i3c =                                                      \ | 
|  | DT_INST_PROP_OR(index, i3c_scl_hz, I3C_RENESAS_RA_TYP_PP_RATE),            \ | 
|  | .common.ctrl_config.scl.i2c =                                                      \ | 
|  | DT_INST_PROP_OR(index, i2c_scl_hz, I3C_RENESAS_RA_TYP_OD_RATE),            \ | 
|  | .fsp_ctrl = &i3c##index##_ctrl,                                                    \ | 
|  | .fsp_cfg = &i3c##index##_cfg,                                                      \ | 
|  | .fsp_master_cfg = &i3c##index##_master_cfg,                                        \ | 
|  | .device_info = &i3c##index##_dev_inf[0],                                           \ | 
|  | .skip_address_phase = true,                                                        \ | 
|  | };                                                                                         \ | 
|  | \ | 
|  | static const struct i3c_renesas_ra_config i3c##index##_renesas_ra_config = {               \ | 
|  | .common.dev_list.i3c = i3c##index##_renesas_ra_i3c_dev_list,                       \ | 
|  | .common.dev_list.num_i3c = ARRAY_SIZE(i3c##index##_renesas_ra_i3c_dev_list),       \ | 
|  | .common.dev_list.i2c = i3c##index##_renesas_ra_i2c_dev_list,                       \ | 
|  | .common.dev_list.num_i2c = ARRAY_SIZE(i3c##index##_renesas_ra_i2c_dev_list),       \ | 
|  | .common.primary_controller_da = DT_INST_PROP_OR(index, primary_controller_da, 0),  \ | 
|  | .pin_cfg = PINCTRL_DT_INST_DEV_CONFIG_GET(index),                                  \ | 
|  | .pclk_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR_BY_NAME(index, pclk)),               \ | 
|  | .tclk_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR_BY_NAME(index, tclk)),               \ | 
|  | .pclk_subsys.mstp = (uint32_t)DT_INST_CLOCKS_CELL_BY_NAME(index, pclk, mstp),      \ | 
|  | .pclk_subsys.stop_bit = DT_INST_CLOCKS_CELL_BY_NAME(index, pclk, stop_bit),        \ | 
|  | .tclk_subsys.mstp = (uint32_t)DT_INST_CLOCKS_CELL_BY_NAME(index, tclk, mstp),      \ | 
|  | .tclk_subsys.stop_bit = DT_INST_CLOCKS_CELL_BY_NAME(index, tclk, stop_bit),        \ | 
|  | .bus_enable_irq = &i3c##index##_renesas_ra_enable_irq,                             \ | 
|  | };                                                                                         \ | 
|  | \ | 
|  | DEVICE_DT_INST_DEFINE(index, &i3c_renesas_ra_init, NULL, &i3c##index##_renesas_ra_data,    \ | 
|  | &i3c##index##_renesas_ra_config, POST_KERNEL,                        \ | 
|  | CONFIG_I3C_CONTROLLER_INIT_PRIORITY, &i3c_renesas_ra_api) | 
|  |  | 
|  | DT_INST_FOREACH_STATUS_OKAY(I3C_RENESAS_RA_INIT) |