diff options
Diffstat (limited to 'sound/soc/codecs/wm8988.c')
-rw-r--r-- | sound/soc/codecs/wm8988.c | 261 |
1 files changed, 85 insertions, 176 deletions
diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c index 19ad590ca0b3..d7f259711970 100644 --- a/sound/soc/codecs/wm8988.c +++ b/sound/soc/codecs/wm8988.c @@ -52,7 +52,7 @@ static const u16 wm8988_reg[] = { /* codec private data */ struct wm8988_priv { unsigned int sysclk; - struct snd_soc_codec codec; + enum snd_soc_control_type control_type; struct snd_pcm_hw_constraint_list *sysclk_constraints; u16 reg_cache[WM8988_NUM_REG]; }; @@ -608,8 +608,7 @@ static int wm8988_pcm_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 wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); u16 iface = snd_soc_read(codec, WM8988_IFACE) & 0x1f3; u16 srate = snd_soc_read(codec, WM8988_SRATE) & 0x180; @@ -711,8 +710,8 @@ static struct snd_soc_dai_ops wm8988_ops = { .digital_mute = wm8988_mute, }; -struct snd_soc_dai wm8988_dai = { - .name = "WM8988", +static struct snd_soc_dai_driver wm8988_dai = { + .name = "wm8988-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, @@ -730,21 +729,15 @@ struct snd_soc_dai wm8988_dai = { .ops = &wm8988_ops, .symmetric_rates = 1, }; -EXPORT_SYMBOL_GPL(wm8988_dai); -static int wm8988_suspend(struct platform_device *pdev, pm_message_t state) +static int wm8988_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; - wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } -static int wm8988_resume(struct platform_device *pdev) +static int wm8988_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; int i; u8 data[2]; u16 *cache = codec->reg_cache; @@ -763,99 +756,22 @@ static int wm8988_resume(struct platform_device *pdev) return 0; } -static struct snd_soc_codec *wm8988_codec; - -static int wm8988_probe(struct platform_device *pdev) +static int wm8988_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; + struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); int ret = 0; - - if (wm8988_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; - } - - socdev->card->codec = wm8988_codec; - codec = wm8988_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, wm8988_snd_controls, - ARRAY_SIZE(wm8988_snd_controls)); - snd_soc_dapm_new_controls(codec, wm8988_dapm_widgets, - ARRAY_SIZE(wm8988_dapm_widgets)); - snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); - - return ret; - -pcm_err: - return ret; -} - -static int wm8988_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); - - return 0; -} - -struct snd_soc_codec_device soc_codec_dev_wm8988 = { - .probe = wm8988_probe, - .remove = wm8988_remove, - .suspend = wm8988_suspend, - .resume = wm8988_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8988); - -static int wm8988_register(struct wm8988_priv *wm8988, - enum snd_soc_control_type control) -{ - struct snd_soc_codec *codec = &wm8988->codec; - int ret; u16 reg; - if (wm8988_codec) { - dev_err(codec->dev, "Another WM8988 is registered\n"); - ret = -EINVAL; - goto err; - } - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - snd_soc_codec_set_drvdata(codec, wm8988); - codec->name = "WM8988"; - codec->owner = THIS_MODULE; - codec->dai = &wm8988_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(wm8988->reg_cache); - codec->reg_cache = &wm8988->reg_cache; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = wm8988_set_bias_level; - - memcpy(codec->reg_cache, wm8988_reg, - sizeof(wm8988_reg)); - - ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); + ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8988->control_type); if (ret < 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - goto err; + return ret; } ret = wm8988_reset(codec); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset\n"); - goto err; + return ret; } /* set the update bits (we always update left then right) */ @@ -870,139 +786,132 @@ static int wm8988_register(struct wm8988_priv *wm8988, reg = snd_soc_read(codec, WM8988_RINVOL); snd_soc_write(codec, WM8988_RINVOL, reg | 0x0100); - wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_STANDBY); - - wm8988_dai.dev = codec->dev; - - wm8988_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err; - } + wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - ret = snd_soc_register_dai(&wm8988_dai); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAI: %d\n", ret); - goto err_codec; - } + snd_soc_add_controls(codec, wm8988_snd_controls, + ARRAY_SIZE(wm8988_snd_controls)); + snd_soc_dapm_new_controls(codec, wm8988_dapm_widgets, + ARRAY_SIZE(wm8988_dapm_widgets)); + snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); return 0; - -err_codec: - snd_soc_unregister_codec(codec); -err: - kfree(wm8988); - return ret; } -static void wm8988_unregister(struct wm8988_priv *wm8988) +static int wm8988_remove(struct snd_soc_codec *codec) { - wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_OFF); - snd_soc_unregister_dai(&wm8988_dai); - snd_soc_unregister_codec(&wm8988->codec); - kfree(wm8988); - wm8988_codec = NULL; + wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; } -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static int wm8988_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static struct snd_soc_codec_driver soc_codec_dev_wm8988 = { + .probe = wm8988_probe, + .remove = wm8988_remove, + .suspend = wm8988_suspend, + .resume = wm8988_resume, + .set_bias_level = wm8988_set_bias_level, + .reg_cache_size = ARRAY_SIZE(wm8988_reg), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm8988_reg, +}; + +#if defined(CONFIG_SPI_MASTER) +static int __devinit wm8988_spi_probe(struct spi_device *spi) { struct wm8988_priv *wm8988; - struct snd_soc_codec *codec; + int ret; wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); if (wm8988 == NULL) return -ENOMEM; - codec = &wm8988->codec; - - i2c_set_clientdata(i2c, wm8988); - codec->control_data = i2c; - - codec->dev = &i2c->dev; + wm8988->control_type = SND_SOC_SPI; + spi_set_drvdata(spi, wm8988); - return wm8988_register(wm8988, SND_SOC_I2C); + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_wm8988, &wm8988_dai, 1); + if (ret < 0) + kfree(wm8988); + return ret; } -static int wm8988_i2c_remove(struct i2c_client *client) +static int __devexit wm8988_spi_remove(struct spi_device *spi) { - struct wm8988_priv *wm8988 = i2c_get_clientdata(client); - wm8988_unregister(wm8988); + snd_soc_unregister_codec(&spi->dev); + kfree(spi_get_drvdata(spi)); return 0; } -static const struct i2c_device_id wm8988_i2c_id[] = { - { "wm8988", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); - -static struct i2c_driver wm8988_i2c_driver = { +static struct spi_driver wm8988_spi_driver = { .driver = { - .name = "WM8988", - .owner = THIS_MODULE, + .name = "wm8988-codec", + .owner = THIS_MODULE, }, - .probe = wm8988_i2c_probe, - .remove = wm8988_i2c_remove, - .id_table = wm8988_i2c_id, + .probe = wm8988_spi_probe, + .remove = __devexit_p(wm8988_spi_remove), }; -#endif +#endif /* CONFIG_SPI_MASTER */ -#if defined(CONFIG_SPI_MASTER) -static int __devinit wm8988_spi_probe(struct spi_device *spi) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static __devinit int wm8988_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { struct wm8988_priv *wm8988; - struct snd_soc_codec *codec; + int ret; wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); if (wm8988 == NULL) return -ENOMEM; - codec = &wm8988->codec; - codec->control_data = spi; - codec->dev = &spi->dev; - - dev_set_drvdata(&spi->dev, wm8988); + i2c_set_clientdata(i2c, wm8988); + wm8988->control_type = SND_SOC_I2C; - return wm8988_register(wm8988, SND_SOC_SPI); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8988, &wm8988_dai, 1); + if (ret < 0) + kfree(wm8988); + return ret; } -static int __devexit wm8988_spi_remove(struct spi_device *spi) +static __devexit int wm8988_i2c_remove(struct i2c_client *client) { - struct wm8988_priv *wm8988 = dev_get_drvdata(&spi->dev); - - wm8988_unregister(wm8988); - + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; } -static struct spi_driver wm8988_spi_driver = { +static const struct i2c_device_id wm8988_i2c_id[] = { + { "wm8988", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); + +static struct i2c_driver wm8988_i2c_driver = { .driver = { - .name = "wm8988", - .bus = &spi_bus_type, - .owner = THIS_MODULE, + .name = "wm8988-codec", + .owner = THIS_MODULE, }, - .probe = wm8988_spi_probe, - .remove = __devexit_p(wm8988_spi_remove), + .probe = wm8988_i2c_probe, + .remove = __devexit_p(wm8988_i2c_remove), + .id_table = wm8988_i2c_id, }; #endif static int __init wm8988_modinit(void) { - int ret; - + int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8988_i2c_driver); - if (ret != 0) - pr_err("WM8988: Unable to register I2C driver: %d\n", ret); + if (ret != 0) { + printk(KERN_ERR "Failed to register WM8988 I2C driver: %d\n", + ret); + } #endif #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&wm8988_spi_driver); - if (ret != 0) - pr_err("WM8988: Unable to register SPI driver: %d\n", ret); + if (ret != 0) { + printk(KERN_ERR "Failed to register WM8988 SPI driver: %d\n", + ret); + } #endif return ret; } |