root/drivers/gpu/drm/amd/display/dc/gpio/dcn42/hw_translate_dcn42.c
// SPDX-License-Identifier: MIT
//
// Copyright 2026 Advanced Micro Devices, Inc.

#include "hw_translate_dcn42.h"

#include "dm_services.h"
#include "include/gpio_types.h"
#include "../hw_translate.h"


#include "dcn/dcn_4_2_0_offset.h"
#include "dcn/dcn_4_2_0_sh_mask.h"
#include "dpcs/dpcs_4_0_0_offset.h"
#include "dpcs/dpcs_4_0_0_sh_mask.h"

#define DCN_BASE__INST0_SEG2                       0x000034C0

/* begin *********************
 * macros to expend register list macro defined in HW object header file */

/* DCN */
#define block HPD
#define reg_num 0

#undef BASE_INNER
#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg

#define BASE(seg) BASE_INNER(seg)

#undef REG
#define REG(reg_name)\
                (BASE(reg ## reg_name ## _BASE_IDX) + reg ## reg_name)
#define SF_HPD(reg_name, field_name, post_fix)\
        .field_name = reg_name ## __ ## field_name ## post_fix


/* macros to expend register list macro defined in HW object header file
 * end *********************/


static bool offset_to_id(
        uint32_t offset,
        uint32_t mask,
        enum gpio_id *id,
        uint32_t *en)
{
        (void)mask;
        switch (offset) {
        /* HPD */
        case REG(HPD0_DC_HPD_INT_STATUS):
                *id = GPIO_ID_HPD;
                *en = GPIO_HPD_1;
                return true;
        case REG(HPD1_DC_HPD_INT_STATUS):
                *id = GPIO_ID_HPD;
                *en = GPIO_HPD_2;
                return true;
        case REG(HPD2_DC_HPD_INT_STATUS):
                *id = GPIO_ID_HPD;
                *en = GPIO_HPD_3;
                return true;
        case REG(HPD3_DC_HPD_INT_STATUS):
                *id = GPIO_ID_HPD;
                *en = GPIO_HPD_4;
                return true;
        case REG(HPD4_DC_HPD_INT_STATUS):
                *id = GPIO_ID_HPD;
                *en = GPIO_HPD_5;
                return true;
        /* DDC */
        /* we don't care about the GPIO_ID for DDC
         * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
         * directly in the create method
         */
        case REG(DC_GPIO_DDC1_A):
                *en = GPIO_DDC_LINE_DDC1;
                return true;
        case REG(DC_GPIO_DDC2_A):
                *en = GPIO_DDC_LINE_DDC2;
                return true;
        case REG(DC_GPIO_DDC3_A):
                *en = GPIO_DDC_LINE_DDC3;
                return true;
        case REG(DC_GPIO_DDC4_A):
                *en = GPIO_DDC_LINE_DDC4;
                return true;
        case REG(DC_GPIO_DDC5_A):
                *en = GPIO_DDC_LINE_DDC5;
                return true;
        case REG(DC_GPIO_DDCVGA_A):
                *en = GPIO_DDC_LINE_DDC_VGA;
                return true;
        default:
                ASSERT_CRITICAL(false);
                return false;
        }
}


static bool id_to_offset(
        enum gpio_id id,
        uint32_t en,
        struct gpio_pin_info *info)
{
        bool result = true;

        switch (id) {
        case GPIO_ID_DDC_DATA:
                info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1DATA_A_MASK;
                switch (en) {
                case GPIO_DDC_LINE_DDC1:
                        info->offset = REG(DC_GPIO_DDC1_A);
                break;
                case GPIO_DDC_LINE_DDC2:
                        info->offset = REG(DC_GPIO_DDC2_A);
                break;
                case GPIO_DDC_LINE_DDC3:
                        info->offset = REG(DC_GPIO_DDC3_A);
                break;
                case GPIO_DDC_LINE_DDC4:
                        info->offset = REG(DC_GPIO_DDC4_A);
                break;
                case GPIO_DDC_LINE_DDC5:
                        info->offset = REG(DC_GPIO_DDC5_A);
                break;
                case GPIO_DDC_LINE_DDC_VGA:
                        info->offset = REG(DC_GPIO_DDCVGA_A);
                break;
                case GPIO_DDC_LINE_I2C_PAD:
                default:
                        ASSERT_CRITICAL(false);
                        result = false;
                }
        break;
        case GPIO_ID_DDC_CLOCK:
                info->mask = DC_GPIO_DDC1_A__DC_GPIO_DDC1CLK_A_MASK;
                switch (en) {
                case GPIO_DDC_LINE_DDC1:
                        info->offset = REG(DC_GPIO_DDC1_A);
                break;
                case GPIO_DDC_LINE_DDC2:
                        info->offset = REG(DC_GPIO_DDC2_A);
                break;
                case GPIO_DDC_LINE_DDC3:
                        info->offset = REG(DC_GPIO_DDC3_A);
                break;
                case GPIO_DDC_LINE_DDC4:
                        info->offset = REG(DC_GPIO_DDC4_A);
                break;
                case GPIO_DDC_LINE_DDC5:
                        info->offset = REG(DC_GPIO_DDC5_A);
                break;
                case GPIO_DDC_LINE_DDC_VGA:
                        info->offset = REG(DC_GPIO_DDCVGA_A);
                break;
                case GPIO_DDC_LINE_I2C_PAD:
                default:
                        ASSERT_CRITICAL(false);
                        result = false;
                }
        break;
        case GPIO_ID_SYNC:
        case GPIO_ID_VIP_PAD:
        default:
                ASSERT_CRITICAL(false);
                result = false;
        }

        if (result) {
                info->offset_y = info->offset + 2;
                info->offset_en = info->offset + 1;
                info->offset_mask = info->offset - 1;

                info->mask_y = info->mask;
                info->mask_en = info->mask;
                info->mask_mask = info->mask;
        }

        return result;
}


/* function table */
static const struct hw_translate_funcs funcs = {
        .offset_to_id = offset_to_id,
        .id_to_offset = id_to_offset,
};


/*
 * dal_hw_translate_dcn42_init
 *
 * @brief
 * Initialize Hw translate function pointers.
 *
 * @param
 * struct hw_translate *tr - [out] struct of function pointers
 *
 */
void dal_hw_translate_dcn42_init(struct hw_translate *tr)
{
        tr->funcs = &funcs;
}