pinctrl_rcar_x5h_common.h

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/*
 * Copyright (c) 2026 BayLibre, SAS
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 */
 
#ifndef ZEPHYR_SOC_ARM_RENESAS_RCAR_X5H_COMMON_PINCTRL_SOC_H_
#define ZEPHYR_SOC_ARM_RENESAS_RCAR_X5H_COMMON_PINCTRL_SOC_H_

 
#include <stdint.h>
#include <zephyr/devicetree.h>
#include <zephyr/sys/util_macro.h>

struct rcar_pin_func {
        uint8_t group: 4; 
        uint8_t bit: 5;   
        uint8_t func: 4;  
};
 
#define RCAR_PIN_FLAGS_PULL_SET BIT(0) 
#define RCAR_PIN_FLAGS_PUEN     BIT(1) 
#define RCAR_PIN_FLAGS_PUD      BIT(2) 
#define RCAR_PIN_FLAGS_FUNC_SET BIT(3) 

#define RCAR_PIN_PULL_UP      (RCAR_PIN_FLAGS_PULL_SET | RCAR_PIN_FLAGS_PUEN | RCAR_PIN_FLAGS_PUD)
#define RCAR_PIN_PULL_DOWN    (RCAR_PIN_FLAGS_PULL_SET | RCAR_PIN_FLAGS_PUEN)
#define RCAR_PIN_PULL_DISABLE RCAR_PIN_FLAGS_PULL_SET

typedef struct pinctrl_soc_pin {
        uint16_t pin;                     
        struct rcar_pin_func func;        
        uint8_t flags;                    
        uint16_t drive_strength_microamp; 
} pinctrl_soc_pin_t;

#define RCAR_ALTSEL(node_id) DT_PROP_BY_IDX(node_id, pin, 1)

#define RCAR_HAS_ALTSEL(node_id) DT_PROP_HAS_IDX(node_id, pin, 1)

#define RCAR_PIN_FUNC(node_id) {                 \
        ((RCAR_ALTSEL(node_id) >> 10U) & 0xFU),  \
        ((RCAR_ALTSEL(node_id) >> 14U) & 0x1FU), \
        ((RCAR_ALTSEL(node_id) & 0xFU))}

#define RCAR_PIN_FLAGS(node_id)                                  \
        DT_PROP(node_id, bias_pull_up) * RCAR_PIN_PULL_UP |      \
        DT_PROP(node_id, bias_pull_down) * RCAR_PIN_PULL_DOWN |  \
        DT_PROP(node_id, bias_disable) * RCAR_PIN_PULL_DISABLE | \
        RCAR_HAS_ALTSEL(node_id) * RCAR_PIN_FLAGS_FUNC_SET

#define RCAR_DT_PIN(node_id) {                                                  \
        .pin = DT_PROP_BY_IDX(node_id, pin, 0),                                 \
        .func = COND_CODE_1(RCAR_HAS_ALTSEL(node_id),                           \
                            (RCAR_PIN_FUNC(node_id)), ({0})),                   \
        .flags = RCAR_PIN_FLAGS(node_id),                                       \
        .drive_strength_microamp =                                              \
                COND_CODE_1(DT_NODE_HAS_PROP(node_id, drive_strength_microamp), \
                            (DT_PROP(node_id, drive_strength_microamp)), (0))},

#define Z_PINCTRL_STATE_PIN_INIT(node_id, state_prop, idx) \
        RCAR_DT_PIN(DT_PROP_BY_IDX(node_id, state_prop, idx))

#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
        {DT_FOREACH_PROP_ELEM(node_id, prop, Z_PINCTRL_STATE_PIN_INIT)}

struct pfc_drive_reg {
        uint32_t drvctrl0;       
        uint32_t drvctrl1;       
        uint32_t drvctrl2;       
        const uint16_t pins[32]; 
};

struct pfc_bias_reg {
        uint32_t puen;           
        uint32_t pud;            
        const uint16_t pins[32]; 
};
 
#endif /* ZEPHYR_SOC_ARM_RENESAS_RCAR_X5H_COMMON_PINCTRL_SOC_H_ */