/*
 * Copyright (C) 2013 Realtek Semiconductor Corp.
 * All Rights Reserved.
 *
 * Unless you and Realtek execute a separate written software license
 * agreement governing use of this software, this software is licensed
 * to you under the terms of the GNU General Public License version 2,
 * available at https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
 *
 * Purpose : RTL8367/RTL8367C switch high-level API
 *
 * Feature : The file includes I2C module high-layer API definition
 *
 */


#ifndef __RTK_API_I2C_H__
#define __RTK_API_I2C_H__
#include <rtk_types.h>

#define I2C_GPIO_MAX_GROUP (3)

typedef enum rtk_I2C_16bit_mode_e{
    I2C_LSB_16BIT_MODE = 0,
    I2C_70B_LSB_16BIT_MODE,
    I2C_Mode_END
}rtk_I2C_16bit_mode_t;


typedef enum rtk_I2C_gpio_pin_e{
    I2C_GPIO_PIN_8_9 = 0,
    I2C_GPIO_PIN_15_16 ,
    I2C_GPIO_PIN_35_36 ,
    I2C_GPIO_PIN_END
}rtk_I2C_gpio_pin_t;


/* Function Name:
 *      rtk_i2c_data_read
 * Description:
 *      read i2c slave device register.
 * Input:
 *      deviceAddr   -   access Slave device address
 *      slaveRegAddr -   access Slave register address
 * Output:
 *      pRegData     -   read data
 * Return:
 *      RT_ERR_OK               - OK
 *      RT_ERR_NULL_POINTER     - input parameter is null pointer
 * Note:
 *      The API can access i2c slave and read i2c slave device register.
 */
extern rtk_api_ret_t rtk_i2c_data_read(rtk_uint8 deviceAddr, rtk_uint32 slaveRegAddr, rtk_uint32 *pRegData);

/* Function Name:
 *      rtk_i2c_data_write
 * Description:
 *      write data to i2c slave device register
 * Input:
 *      deviceAddr   -   access Slave device address
 *      slaveRegAddr -   access Slave register address
 *      regData      -   data to set
 * Output:
 *      None
 * Return:
 *      RT_ERR_OK               - OK
 * Note:
 *      The API can access i2c slave and setting i2c slave device register.
 */
extern rtk_api_ret_t rtk_i2c_data_write(rtk_uint8 deviceAddr, rtk_uint32 slaveRegAddr, rtk_uint32 regData);


/* Function Name:
 *      rtk_i2c_init
 * Description:
 *      I2C smart function initialization.
 * Input:
 *      None
 * Output:
 *      None
 * Return:
 *      RT_ERR_OK           - OK
 *      RT_ERR_FAILED       - Failed
 * Note:
 *      This API is used to initialize EEE status.
 *      need used GPIO pins
 *      OpenDrain and clock
 */
extern rtk_api_ret_t rtk_i2c_init(void);

/* Function Name:
 *      rtk_i2c_mode_set
 * Description:
 *      Set I2C data byte-order.
 * Input:
 *      i2cmode - byte-order mode
 * Output:
 *      None
 * Return:
 *      RT_ERR_OK           - OK
 *      RT_ERR_FAILED       - Failed
 *      RT_ERR_INPUT        - Invalid input parameter.
 * Note:
 *      This API can set I2c traffic's byte-order .
 */
extern rtk_api_ret_t rtk_i2c_mode_set( rtk_I2C_16bit_mode_t i2cmode);

/* Function Name:
 *      rtk_i2c_mode_get
 * Description:
 *      Get i2c traffic byte-order setting.
 * Input:
 *      None
 * Output:
 *      pI2cMode - i2c byte-order
 * Return:
 *      RT_ERR_OK               - OK
 *      RT_ERR_FAILED           - Failed
 *      RT_ERR_NULL_POINTER     - input parameter is null pointer
 * Note:
 *      The API can get i2c traffic byte-order setting.
 */
extern rtk_api_ret_t rtk_i2c_mode_get( rtk_I2C_16bit_mode_t * pI2cMode);


/* Function Name:
 *      rtk_i2c_gpioPinGroup_set
 * Description:
 *      Set i2c SDA & SCL used GPIO pins group.
 * Input:
 *      pins_group - GPIO pins group
 * Output:
 *      None
 * Return:
 *      RT_ERR_OK               - OK
 *      RT_ERR_FAILED           - Failed
 *      RT_ERR_INPUT        - Invalid input parameter.
 * Note:
 *      The API can set i2c used gpio pins group.
 *      There are three group pins could be used
 */
extern rtk_api_ret_t rtk_i2c_gpioPinGroup_set( rtk_I2C_gpio_pin_t pins_group);

/* Function Name:
 *      rtk_i2c_gpioPinGroup_get
 * Description:
 *      Get i2c SDA & SCL used GPIO pins group.
 * Input:
 *      None
 * Output:
 *      pPins_group - GPIO pins group
 * Return:
 *      RT_ERR_OK               - OK
 *      RT_ERR_NULL_POINTER     - input parameter is null pointer
 * Note:
 *      The API can get i2c used gpio pins group.
 *      There are three group pins could be used
 */
extern rtk_api_ret_t rtk_i2c_gpioPinGroup_get(rtk_I2C_gpio_pin_t * pPins_group);







#endif