plat_cpld.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef PLAT_CPLD_H
#define PLAT_CPLD_H
 
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
 
#define CPLD_OFFSET_VR_VENDER_TYPE 0x15
#define CPLD_OFFSET_POWER_CLAMP 0x25
#define CPLD_OFFSET_USERCODE 0x32
 
typedef struct _cpld_info_ cpld_info;
 
typedef struct _cpld_info_ {
    uint8_t cpld_offset;
    uint8_t dc_off_defaut;
    uint8_t dc_on_defaut;
    bool is_fault_log; // if true, check the value is defaut or not
    uint8_t is_fault_bit_map; //flag for fault
 
    //flag for 1st polling
    bool is_first_polling;
 
    //flag for 1st polling after changing DC status
    bool is_first_polling_after_dc_change;
 
    //temp data for last polling
    uint8_t last_polling_value;
 
    bool (*status_changed_cb)(cpld_info *, uint8_t *);
 
    uint8_t bit_check_mask; //bit check mask
 
} cpld_info;
 
bool plat_read_cpld(uint8_t offset, uint8_t *data, uint8_t len);
bool plat_write_cpld(uint8_t offset, uint8_t *data);
void init_cpld_polling(void);
void check_cpld_polling_alert_status(void);
 
#endif