static int es8323_hp_jack_change(struct notifier_block *nb,

    unsigned long flags, void *data)

{

        if(es8323_adc)

             hp_jack_adc(flags);

        else{

            if(es8323_mic_state == ) {

                    if(flags == ){

                    /* carroll add switch mic start */

                    printk("carroll mic use extern board mic switch off\n");

                    //snd_soc_write(es8323_codec, 0x0b,0x02);

                    snd_soc_write(es8323_codec, 0x0b,0x82);

                     /* carroll add switch mic end */

                    }else {

                    printk("carroll mic use intern board mic switch on\n");

                    snd_soc_write(es8323_codec, 0x0b,0x02);

                    }

            if(line_in_state == ) spk_detect_do_switch();

            }

        }

    return NOTIFY_OK;

}

static struct notifier_block es8323_hp_jack_nb = {

    .notifier_call = es8323_hp_jack_change,

};

static void es8323_jack_init(struct snd_soc_codec *codec)

{

    if(es8323_hp_det_gpio  != INVALID_GPIO)

    {

        firefly_es8323_hp_jack_gpio.gpio = es8323_hp_det_gpio;

        snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,

                &firefly_es8323_hp_jack);

        snd_soc_jack_add_gpios(&firefly_es8323_hp_jack,

                ,

                &firefly_es8323_hp_jack_gpio);

        snd_soc_jack_notifier_register(&firefly_es8323_hp_jack, &es8323_hp_jack_nb);

    }

}