static int ak4671_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec;
int ret = 0;
if (ak4671_codec == NULL) {
dev_err(&pdev->dev, "Codec device not registered\n");
return -ENODEV;
}
socdev->card->codec = ak4671_codec;
codec = ak4671_codec;
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
dev_err(codec->dev, "failed to create pcms: %d\n", ret);
goto pcm_err;
}
snd_soc_add_controls(codec, ak4671_snd_controls,
ARRAY_SIZE(ak4671_snd_controls));
ak4671_add_widgets(codec);
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return ret;
pcm_err:
return ret;
}
static int ak4671_probe(struct snd_soc_codec *codec)
{
struct ak4671_priv *ak4671 = snd_soc_codec_get_drvdata(codec);
struct ak4671_platform_data *pdata = codec->dev->platform_data;
int ret;
if (pdata) {
if (gpio_is_valid(pdata->gpio_npdn)) {
ret = gpio_request_one(pdata->gpio_npdn,
GPIOF_OUT_INIT_LOW, "ak4671 npdn");
if (ret)
return ret;
udelay(1); /* > 150 ns */
gpio_set_value(pdata->gpio_npdn, 1);
}
}
ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4671->control_type);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
gpio_set_value(pdata->gpio_npdn, 0);
return ret;
}
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
static void ak4671_unregister(struct ak4671_priv *ak4671)
{
ak4671_set_bias_level(&ak4671->codec, SND_SOC_BIAS_OFF);
snd_soc_unregister_dai(&ak4671_dai);
snd_soc_unregister_codec(&ak4671->codec);
kfree(ak4671);
ak4671_codec = NULL;
}
static int ak4671_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->codec;
P("");
if ( (ak4671_path & 0xf0) != MM_AUDIO_VOICECALL && (ak4671_path & 0xf0) != MM_AUDIO_VOICEMEMO )
{
ak4671_sync(codec);
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
ak4671_set_bias_level(codec, codec->suspend_bias_level);
}
mic_enable(1); /* MICBIAS Enable (SPH-M900 Only) */
return 0;
}
/*
* initialise the AK4671 driver
* register the mixer and dsp interfaces with the kernel
*/
static int ak4671_init(struct snd_soc_device *socdev)
{
struct snd_soc_codec *codec = socdev->codec;
int ret = 0;
memcpy(ak4671_reg_default, ak4671_reg, sizeof(ak4671_reg)); // copy ak4671 default register
codec->dev = socdev->dev;
codec->name = "AK4671";
codec->owner = THIS_MODULE;
codec->read = ak4671_read_reg_cache;
codec->write = ak4671_write;
codec->set_bias_level = ak4671_set_bias_level;
codec->dai = &ak4671_dai;
codec->num_dai = 1;
codec->reg_cache_size = ARRAY_SIZE(ak4671_reg);
codec->reg_cache = kmemdup(ak4671_reg, sizeof(ak4671_reg), GFP_KERNEL);
if (codec->reg_cache == NULL)
return -ENOMEM;
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
printk(KERN_ERR "ak4671: failed to create pcms\n");
goto pcm_err;
}
/* power on device */
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
ak4671_add_controls(codec);
ret = snd_soc_init_card(socdev);
if (ret < 0) {
printk(KERN_ERR "ak4671: failed to register card\n");
goto card_err;
}
return ret;
card_err:
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
pcm_err:
kfree(codec->reg_cache);
return ret;
}
/* power down chip */
static int ak4671_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->codec;
if (codec->control_data)
ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&ak4671_i2c_driver);
#endif
kfree(codec->private_data);
kfree(codec);
return 0;
}
static int ak4671_probe(struct snd_soc_codec *codec)
{
struct ak4671_priv *ak4671 = snd_soc_codec_get_drvdata(codec);
int ret;
codec->hw_write = (hw_write_t)i2c_master_send;
ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4671->control_type);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
}
snd_soc_add_controls(codec, ak4671_snd_controls,
ARRAY_SIZE(ak4671_snd_controls));
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return ret;
}
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 int ak4671_remove(struct snd_soc_codec *codec)
{
ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int ak4671_resume(struct snd_soc_codec *codec)
{
ak4671_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
static int ak4671_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
ak4671_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}