Function rt_hw_i2c_init

bsp/k210/drivers/drv_i2c.c:282–376

#endif

int rt_hw_i2c_init(void)
{
    struct  rt_i2c_bus_device *busdev;

#ifdef BSP_USING_I2C0
    static  struct rt_i2c_bus_device i2c_dev0;
    busdev = &i2c_dev0;

    #ifdef RT_USING_I2C_BITOPS
    fpioa_set_function(BSP_I2C0_SCL_PIN, FUNC_RESV0);
    fpioa_set_function(BSP_I2C0_SDA_PIN, FUNC_RESV0);

    rt_pin_write(BSP_I2C0_SCL_PIN, PIN_LOW);
    rt_pin_write(BSP_I2C0_SDA_PIN, PIN_LOW);
    rt_pin_mode(BSP_I2C0_SCL_PIN, PIN_MODE_INPUT_PULLUP);
    rt_pin_mode(BSP_I2C0_SDA_PIN, PIN_MODE_INPUT_PULLUP);

    static  pin_info_t  pin0;
    pin0.scl = get_pin_channel(BSP_I2C0_SCL_PIN);
    pin0.sda = get_pin_channel(BSP_I2C0_SDA_PIN);
    bit_ops_0.data = (void *)&pin0;

    busdev->priv = (void *)&bit_ops_0;
    rt_i2c_bit_add_bus(busdev, "i2c0");
    #else

    busdev->ops = &i2c_ops;
    busdev->priv = (void *)I2C0_BASE_ADDR;

    i2c_init(I2C_DEVICE_0, 0, 7, 100000);
    rt_i2c_bus_device_register(busdev, "i2c0");
    #endif
#endif

#ifdef BSP_USING_I2C1
    static  struct rt_i2c_bus_device i2c_dev1;
    busdev = &i2c_dev1;

    #ifdef RT_USING_I2C_BITOPS
    fpioa_set_function(BSP_I2C1_SCL_PIN, FUNC_RESV0);
    fpioa_set_function(BSP_I2C1_SDA_PIN, FUNC_RESV0);

    rt_pin_write(BSP_I2C1_SCL_PIN, PIN_LOW);
    rt_pin_write(BSP_I2C1_SDA_PIN, PIN_LOW);
    rt_pin_mode(BSP_I2C1_SCL_PIN, PIN_MODE_INPUT_PULLUP);
    rt_pin_mode(BSP_I2C1_SDA_PIN, PIN_MODE_INPUT_PULLUP);

    static  pin_info_t  pin1;
    pin1.scl = get_pin_channel(BSP_I2C1_SCL_PIN);
    pin1.sda = get_pin_channel(BSP_I2C1_SDA_PIN);
    bit_ops_1.data = (void *)&pin1;

    busdev->priv = (void *)&bit_ops_1;
    rt_i2c_bit_add_bus(busdev, "i2c1");
    #else

    busdev->ops = &i2c_ops;
    busdev->priv = (void *)I2C1_BASE_ADDR;