diff options
Diffstat (limited to 'sound/soc/codecs/ak4535.c')
-rw-r--r-- | sound/soc/codecs/ak4535.c | 236 |
1 files changed, 61 insertions, 175 deletions
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c index d425367..cd88c8f 100644 --- a/sound/soc/codecs/ak4535.c +++ b/sound/soc/codecs/ak4535.c @@ -31,11 +31,11 @@ #define AK4535_VERSION "0.3" -struct snd_soc_codec_device soc_codec_dev_ak4535; - /* codec private data */ struct ak4535_priv { unsigned int sysclk; + enum snd_soc_control_type control_type; + void *control_data; }; /* @@ -313,8 +313,7 @@ static int ak4535_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { 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; struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5); int rate = params_rate(params), fs = 256; @@ -378,14 +377,16 @@ static int ak4535_mute(struct snd_soc_dai *dai, int mute) static int ak4535_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - u16 i; + u16 i, mute_reg; switch (level) { case SND_SOC_BIAS_ON: - ak4535_mute(codec->dai, 0); + mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf; + ak4535_write(codec, AK4535_DAC, mute_reg); break; case SND_SOC_BIAS_PREPARE: - ak4535_mute(codec->dai, 1); + mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf; + ak4535_write(codec, AK4535_DAC, mute_reg | 0x20); break; case SND_SOC_BIAS_STANDBY: i = ak4535_read_reg_cache(codec, AK4535_PM1); @@ -413,8 +414,8 @@ static struct snd_soc_dai_ops ak4535_dai_ops = { .set_sysclk = ak4535_set_dai_sysclk, }; -struct snd_soc_dai ak4535_dai = { - .name = "AK4535", +static struct snd_soc_dai_driver ak4535_dai = { + .name = "ak4535-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, @@ -429,54 +430,27 @@ struct snd_soc_dai ak4535_dai = { .formats = SNDRV_PCM_FMTBIT_S16_LE,}, .ops = &ak4535_dai_ops, }; -EXPORT_SYMBOL_GPL(ak4535_dai); -static int ak4535_suspend(struct platform_device *pdev, pm_message_t state) +static int ak4535_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; - ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } -static int ak4535_resume(struct platform_device *pdev) +static int ak4535_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; ak4535_sync(codec); ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } -/* - * initialise the AK4535 driver - * register the mixer and dsp interfaces with the kernel - */ -static int ak4535_init(struct snd_soc_device *socdev) +static int ak4535_probe(struct snd_soc_codec *codec) { - struct snd_soc_codec *codec = socdev->card->codec; - int ret = 0; + struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); - codec->name = "AK4535"; - codec->owner = THIS_MODULE; - codec->read = ak4535_read_reg_cache; - codec->write = ak4535_write; - codec->set_bias_level = ak4535_set_bias_level; - codec->dai = &ak4535_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(ak4535_reg); - codec->reg_cache = kmemdup(ak4535_reg, sizeof(ak4535_reg), GFP_KERNEL); - - if (codec->reg_cache == NULL) - return -ENOMEM; + printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - printk(KERN_ERR "ak4535: failed to create pcms\n"); - goto pcm_err; - } + codec->control_data = ak4535->control_data; /* power on device */ ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); @@ -485,39 +459,55 @@ static int ak4535_init(struct snd_soc_device *socdev) ARRAY_SIZE(ak4535_snd_controls)); ak4535_add_widgets(codec); - return ret; - -pcm_err: - kfree(codec->reg_cache); + return 0; +} - return ret; +/* power down chip */ +static int ak4535_remove(struct snd_soc_codec *codec) +{ + ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; } -static struct snd_soc_device *ak4535_socdev; +static struct snd_soc_codec_driver soc_codec_dev_ak4535 = { + .probe = ak4535_probe, + .remove = ak4535_remove, + .suspend = ak4535_suspend, + .resume = ak4535_resume, + .read = ak4535_read_reg_cache, + .write = ak4535_write, + .set_bias_level = ak4535_set_bias_level, + .reg_cache_size = ARRAY_SIZE(ak4535_reg), + .reg_word_size = sizeof(u8), + .reg_cache_default = ak4535_reg, +}; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - -static int ak4535_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static __devinit int ak4535_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { - struct snd_soc_device *socdev = ak4535_socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct ak4535_priv *ak4535; int ret; - i2c_set_clientdata(i2c, codec); - codec->control_data = i2c; + ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL); + if (ak4535 == NULL) + return -ENOMEM; - ret = ak4535_init(socdev); - if (ret < 0) - printk(KERN_ERR "failed to initialise AK4535\n"); + i2c_set_clientdata(i2c, ak4535); + ak4535->control_data = i2c; + ak4535->control_type = SND_SOC_I2C; + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_ak4535, &ak4535_dai, 1); + if (ret < 0) + kfree(ak4535); return ret; } -static int ak4535_i2c_remove(struct i2c_client *client) +static __devexit int ak4535_i2c_remove(struct i2c_client *client) { - struct snd_soc_codec *codec = i2c_get_clientdata(client); - kfree(codec->reg_cache); + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; } @@ -529,138 +519,34 @@ MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); static struct i2c_driver ak4535_i2c_driver = { .driver = { - .name = "AK4535 I2C Codec", + .name = "ak4535-codec", .owner = THIS_MODULE, }, .probe = ak4535_i2c_probe, - .remove = ak4535_i2c_remove, + .remove = __devexit_p(ak4535_i2c_remove), .id_table = ak4535_i2c_id, }; - -static int ak4535_add_i2c_device(struct platform_device *pdev, - const struct ak4535_setup_data *setup) -{ - struct i2c_board_info info; - struct i2c_adapter *adapter; - struct i2c_client *client; - int ret; - - ret = i2c_add_driver(&ak4535_i2c_driver); - if (ret != 0) { - dev_err(&pdev->dev, "can't add i2c driver\n"); - return ret; - } - - memset(&info, 0, sizeof(struct i2c_board_info)); - info.addr = setup->i2c_address; - strlcpy(info.type, "ak4535", I2C_NAME_SIZE); - - adapter = i2c_get_adapter(setup->i2c_bus); - if (!adapter) { - dev_err(&pdev->dev, "can't get i2c adapter %d\n", - setup->i2c_bus); - goto err_driver; - } - - client = i2c_new_device(adapter, &info); - i2c_put_adapter(adapter); - if (!client) { - dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", - (unsigned int)info.addr); - goto err_driver; - } - - return 0; - -err_driver: - i2c_del_driver(&ak4535_i2c_driver); - return -ENODEV; -} #endif -static int ak4535_probe(struct platform_device *pdev) +static int __init ak4535_modinit(void) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct ak4535_setup_data *setup; - struct snd_soc_codec *codec; - struct ak4535_priv *ak4535; - int ret; - - printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); - - setup = socdev->codec_data; - codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); - if (codec == NULL) - return -ENOMEM; - - ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL); - if (ak4535 == NULL) { - kfree(codec); - return -ENOMEM; - } - - snd_soc_codec_set_drvdata(codec, ak4535); - socdev->card->codec = codec; - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - ak4535_socdev = socdev; - ret = -ENODEV; - + int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - if (setup->i2c_address) { - codec->hw_write = (hw_write_t)i2c_master_send; - ret = ak4535_add_i2c_device(pdev, setup); - } -#endif - + ret = i2c_add_driver(&ak4535_i2c_driver); if (ret != 0) { - kfree(snd_soc_codec_get_drvdata(codec)); - kfree(codec); + printk(KERN_ERR "Failed to register AK4535 I2C driver: %d\n", + ret); } +#endif return ret; } +module_init(ak4535_modinit); -/* power down chip */ -static int ak4535_remove(struct platform_device *pdev) +static void __exit ak4535_exit(void) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - - if (codec->control_data) - ak4535_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) - if (codec->control_data) - i2c_unregister_device(codec->control_data); i2c_del_driver(&ak4535_i2c_driver); #endif - kfree(snd_soc_codec_get_drvdata(codec)); - kfree(codec); - - return 0; -} - -struct snd_soc_codec_device soc_codec_dev_ak4535 = { - .probe = ak4535_probe, - .remove = ak4535_remove, - .suspend = ak4535_suspend, - .resume = ak4535_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_ak4535); - -static int __init ak4535_modinit(void) -{ - return snd_soc_register_dai(&ak4535_dai); -} -module_init(ak4535_modinit); - -static void __exit ak4535_exit(void) -{ - snd_soc_unregister_dai(&ak4535_dai); } module_exit(ak4535_exit); |