smbus_target.h

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/*
 * Copyright (c) 2024 Tenstorrent AI ULC
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef SMBUS_TARGET
#define SMBUS_TARGET
 
#include <stdint.h>

typedef enum {
        kSmbusTransWriteByte,
        kSmbusTransReadByte,
        kSmbusTransWriteWord,
        kSmbusTransReadWord,
        kSmbusTransBlockWrite,
        kSmbusTransBlockRead,
        kSmbusTransBlockWriteBlockRead
} SmbusTransType;

typedef int32_t (*SmbusRcvHandler)(const uint8_t *data, uint8_t size);

typedef int32_t (*SmbusSendHandler)(uint8_t *data, uint8_t *size);
 
typedef struct {
        SmbusTransType trans_type;
        SmbusRcvHandler rcv_handler;
        SmbusSendHandler send_handler;
        uint8_t pec: 1;
} SmbusCmdDef;

int32_t smbus_target_register_cmd(const struct device *dev, uint8_t cmd_id,
                                  const SmbusCmdDef *smbus_cmd);
#endif