static int ak4671_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct ak4671_setup_data *setup;
struct snd_soc_codec *codec;
struct ak4671_priv *ak4671;
int ret = 0;
printk(KERN_INFO "AK4671 Audio Codec %s", AK4671_VERSION);
/* Board Specific function */
audio_init();
if (amp_init() < 0)
printk("amp init failed.\n");
audio_power(1);
ak4671_power = 1;
amp_set_path(AK4671_AMP_PATH_SPK);
mic_set_path(AK4671_MIC_PATH_MAIN);
ret = device_create_file(&pdev->dev, &dev_attr_ak4671_control);
setup = socdev->codec_data;
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
if (codec == NULL)
return -ENOMEM;
ak4671 = kzalloc(sizeof(struct ak4671_priv), GFP_KERNEL);
if (ak4671 == NULL) {
kfree(codec);
return -ENOMEM;
}
codec->private_data = ak4671;
socdev->codec = codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
ak4671_socdev = socdev;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
if (setup->i2c_address) {
normal_i2c[0] = setup->i2c_address;
codec->hw_write = (hw_write_t)i2c_master_send;
codec->hw_read = (hw_read_t)i2c_master_recv;
ret = i2c_add_driver(&ak4671_i2c_driver);
if (ret != 0)
printk(KERN_ERR "can't add i2c driver");
}
#else
/* Add other interfaces here */
#endif
if (ret != 0) {
kfree(codec->private_data);
kfree(codec);
}
return ret;
}
static int set_registers(struct snd_soc_codec *codec, int mode)
{
int ret = 0;
P("Set Audio PATH : 0x%02x\n", mode);
/* for Recording path change */
if ( (ak4671_idle_mode == IDLE_POWER_DOWN_MODE_OFF) && (ak4671_power == 1) ) {
ret = path_change(codec, mode, ak4671_path);
if (ret > 0) {
P("Path Changed (0x%02x->0x%02x)", ak4671_path, mode);
ak4671_idle_mode = IDLE_POWER_DOWN_MODE_OFF; // IDLE Mode reset (off)
ak4671_path = mode;
return 0;
}
}
path_disable(codec, ak4671_path);
/* voice call rec MODE off */
if (ak4671_voice_call_rec_mode != 0)
ak4671_voice_call_rec_mode = 0;
amp_path_control(mode);
if (ak4671_power == 0) {
audio_power(1); /* Board Specific function */
ak4671_power = 1;
}
path_enable(codec, mode);
ak4671_idle_mode = IDLE_POWER_DOWN_MODE_OFF; // IDLE Mode reset (off)
ak4671_path = mode;
return 0;
}
static int ak4671_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->codec;
P("");
ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
if ( (ak4671_path & 0xf0) != MM_AUDIO_VOICECALL && (ak4671_path & 0xf0) != MM_AUDIO_VOICEMEMO )
{
path_disable(codec, ak4671_path);
/* AUDIO_EN & MAX8906_AMP_EN Disable */
amp_enable(0); /* Board Specific function */
audio_power(0); /* Board Specific function */
mic_enable(0); /* MICBIAS Disable (SPH-M900 Only) */
ak4671_power = 0;
ak4671_idle_mode = IDLE_POWER_DOWN_MODE_ON;
}
return 0;
}
static void s3c_audio_off(void)
{
pr_info("%s: Turn off audio power, amp\n", __func__);
amp_enable(0);
audio_power(0);
}
