diff options
Diffstat (limited to 'sound/soc/codecs/ad1836.c')
-rw-r--r-- | sound/soc/codecs/ad1836.c | 191 |
1 files changed, 55 insertions, 136 deletions
diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c index a01006c..d272534 100644 --- a/sound/soc/codecs/ad1836.c +++ b/sound/soc/codecs/ad1836.c @@ -33,15 +33,10 @@ /* codec private data */ struct ad1836_priv { - struct snd_soc_codec codec; - u16 reg_cache[AD1836_NUM_REGS]; + enum snd_soc_control_type control_type; + void *control_data; }; -static struct snd_soc_codec *ad1836_codec; -struct snd_soc_codec_device soc_codec_dev_ad1836; -static int ad1836_register(struct ad1836_priv *ad1836); -static void ad1836_unregister(struct ad1836_priv *ad1836); - /* * AD1836 volume/mute/de-emphasis etc. controls */ @@ -146,8 +141,7 @@ static int ad1836_hw_params(struct snd_pcm_substream *substream, int word_len = 0; struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct snd_soc_codec *codec = rtd->codec; /* bit size */ switch (params_format(params)) { @@ -173,12 +167,9 @@ static int ad1836_hw_params(struct snd_pcm_substream *substream, } #ifdef CONFIG_PM -static int ad1836_soc_suspend(struct platform_device *pdev, +static int ad1836_soc_suspend(struct snd_soc_codec *codec, pm_message_t state) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - /* reset clock control mode */ u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2); adc_ctrl2 &= ~AD1836_ADC_SERFMT_MASK; @@ -186,11 +177,8 @@ static int ad1836_soc_suspend(struct platform_device *pdev, return snd_soc_write(codec, AD1836_ADC_CTRL2, adc_ctrl2); } -static int ad1836_soc_resume(struct platform_device *pdev) +static int ad1836_soc_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - /* restore clock control mode */ u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2); adc_ctrl2 |= AD1836_ADC_AUX; @@ -202,49 +190,14 @@ static int ad1836_soc_resume(struct platform_device *pdev) #define ad1836_soc_resume NULL #endif -static int __devinit ad1836_spi_probe(struct spi_device *spi) -{ - struct snd_soc_codec *codec; - struct ad1836_priv *ad1836; - - ad1836 = kzalloc(sizeof(struct ad1836_priv), GFP_KERNEL); - if (ad1836 == NULL) - return -ENOMEM; - - codec = &ad1836->codec; - codec->control_data = spi; - codec->dev = &spi->dev; - - dev_set_drvdata(&spi->dev, ad1836); - - return ad1836_register(ad1836); -} - -static int __devexit ad1836_spi_remove(struct spi_device *spi) -{ - struct ad1836_priv *ad1836 = dev_get_drvdata(&spi->dev); - - ad1836_unregister(ad1836); - return 0; -} - -static struct spi_driver ad1836_spi_driver = { - .driver = { - .name = "ad1836", - .owner = THIS_MODULE, - }, - .probe = ad1836_spi_probe, - .remove = __devexit_p(ad1836_spi_remove), -}; - static struct snd_soc_dai_ops ad1836_dai_ops = { .hw_params = ad1836_hw_params, .set_fmt = ad1836_set_dai_fmt, }; /* codec DAI instance */ -struct snd_soc_dai ad1836_dai = { - .name = "AD1836", +static struct snd_soc_dai_driver ad1836_dai = { + .name = "ad1836-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, @@ -263,35 +216,13 @@ struct snd_soc_dai ad1836_dai = { }, .ops = &ad1836_dai_ops, }; -EXPORT_SYMBOL_GPL(ad1836_dai); -static int ad1836_register(struct ad1836_priv *ad1836) +static int ad1836_probe(struct snd_soc_codec *codec) { - int ret; - struct snd_soc_codec *codec = &ad1836->codec; - - if (ad1836_codec) { - dev_err(codec->dev, "Another ad1836 is registered\n"); - kfree(ad1836); - return -EINVAL; - } - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - snd_soc_codec_set_drvdata(codec, ad1836); - codec->reg_cache = ad1836->reg_cache; - codec->reg_cache_size = AD1836_NUM_REGS; - codec->name = "AD1836"; - codec->owner = THIS_MODULE; - codec->dai = &ad1836_dai; - codec->num_dai = 1; - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - ad1836_dai.dev = codec->dev; - ad1836_codec = codec; + struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); + int ret = 0; + codec->control_data = ad1836->control_data; ret = snd_soc_codec_set_cache_io(codec, 4, 12, SND_SOC_SPI); if (ret < 0) { dev_err(codec->dev, "failed to set cache I/O: %d\n", @@ -319,81 +250,69 @@ static int ad1836_register(struct ad1836_priv *ad1836) snd_soc_write(codec, AD1836_DAC_L3_VOL, 0x3FF); snd_soc_write(codec, AD1836_DAC_R3_VOL, 0x3FF); - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - kfree(ad1836); - return ret; - } - - ret = snd_soc_register_dai(&ad1836_dai); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAI: %d\n", ret); - snd_soc_unregister_codec(codec); - kfree(ad1836); - return ret; - } - - return 0; -} - -static void ad1836_unregister(struct ad1836_priv *ad1836) -{ - snd_soc_unregister_dai(&ad1836_dai); - snd_soc_unregister_codec(&ad1836->codec); - kfree(ad1836); - ad1836_codec = NULL; -} - -static int ad1836_probe(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - int ret = 0; - - if (ad1836_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; - } - - socdev->card->codec = ad1836_codec; - codec = ad1836_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, ad1836_snd_controls, ARRAY_SIZE(ad1836_snd_controls)); snd_soc_dapm_new_controls(codec, ad1836_dapm_widgets, ARRAY_SIZE(ad1836_dapm_widgets)); snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths)); -pcm_err: return ret; } /* power down chip */ -static int ad1836_remove(struct platform_device *pdev) +static int ad1836_remove(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); + /* reset clock control mode */ + u16 adc_ctrl2 = snd_soc_read(codec, AD1836_ADC_CTRL2); + adc_ctrl2 &= ~AD1836_ADC_SERFMT_MASK; - return 0; + return snd_soc_write(codec, AD1836_ADC_CTRL2, adc_ctrl2); } -struct snd_soc_codec_device soc_codec_dev_ad1836 = { +static struct snd_soc_codec_driver soc_codec_dev_ad1836 = { .probe = ad1836_probe, .remove = ad1836_remove, .suspend = ad1836_soc_suspend, .resume = ad1836_soc_resume, + .reg_cache_size = AD1836_NUM_REGS, + .reg_word_size = sizeof(u16), +}; + +static int __devinit ad1836_spi_probe(struct spi_device *spi) +{ + struct ad1836_priv *ad1836; + int ret; + + ad1836 = kzalloc(sizeof(struct ad1836_priv), GFP_KERNEL); + if (ad1836 == NULL) + return -ENOMEM; + + spi_set_drvdata(spi, ad1836); + ad1836->control_data = spi; + ad1836->control_type = SND_SOC_SPI; + + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_ad1836, &ad1836_dai, 1); + if (ret < 0) + kfree(ad1836); + return ret; +} + +static int __devexit ad1836_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + kfree(spi_get_drvdata(spi)); + return 0; +} + +static struct spi_driver ad1836_spi_driver = { + .driver = { + .name = "ad1836-codec", + .owner = THIS_MODULE, + }, + .probe = ad1836_spi_probe, + .remove = __devexit_p(ad1836_spi_remove), }; -EXPORT_SYMBOL_GPL(soc_codec_dev_ad1836); static int __init ad1836_init(void) { |