diff options
Diffstat (limited to 'sound/soc/codecs/wm8750.c')
-rw-r--r-- | sound/soc/codecs/wm8750.c | 269 |
1 files changed, 84 insertions, 185 deletions
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c index e2c05e3e323..89863a5bc83 100644 --- a/sound/soc/codecs/wm8750.c +++ b/sound/soc/codecs/wm8750.c @@ -52,7 +52,8 @@ static const u16 wm8750_reg[] = { /* codec private data */ struct wm8750_priv { unsigned int sysclk; - struct snd_soc_codec codec; + enum snd_soc_control_type control_type; + void *control_data; u16 reg_cache[ARRAY_SIZE(wm8750_reg)]; }; @@ -560,8 +561,7 @@ static int wm8750_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 wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec); u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3; u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0; @@ -649,8 +649,8 @@ static struct snd_soc_dai_ops wm8750_dai_ops = { .set_sysclk = wm8750_set_dai_sysclk, }; -struct snd_soc_dai wm8750_dai = { - .name = "WM8750", +static struct snd_soc_dai_driver wm8750_dai = { + .name = "wm8750-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, @@ -665,21 +665,15 @@ struct snd_soc_dai wm8750_dai = { .formats = WM8750_FORMATS,}, .ops = &wm8750_dai_ops, }; -EXPORT_SYMBOL_GPL(wm8750_dai); -static int wm8750_suspend(struct platform_device *pdev, pm_message_t state) +static int wm8750_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; - wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } -static int wm8750_resume(struct platform_device *pdev) +static int wm8750_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; @@ -698,100 +692,22 @@ static int wm8750_resume(struct platform_device *pdev) return 0; } -static struct snd_soc_codec *wm8750_codec; - -static int wm8750_probe(struct platform_device *pdev) +static int wm8750_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - int ret = 0; - - if (!wm8750_codec) { - dev_err(&pdev->dev, "WM8750 codec not yet registered\n"); - return -EINVAL; - } - - socdev->card->codec = wm8750_codec; - codec = wm8750_codec; - - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - printk(KERN_ERR "wm8750: failed to create pcms\n"); - goto err; - } - - snd_soc_add_controls(codec, wm8750_snd_controls, - ARRAY_SIZE(wm8750_snd_controls)); - wm8750_add_widgets(codec); - - return 0; - -err: - return ret; -} - -/* power down chip */ -static int wm8750_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_wm8750 = { - .probe = wm8750_probe, - .remove = wm8750_remove, - .suspend = wm8750_suspend, - .resume = wm8750_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750); - -/* - * initialise the WM8750 driver - * register the mixer and dsp interfaces with the kernel - */ -static int wm8750_register(struct wm8750_priv *wm8750, - enum snd_soc_control_type control) -{ - struct snd_soc_codec *codec = &wm8750->codec; - int reg, ret = 0; - - if (wm8750_codec) { - dev_err(codec->dev, "Multiple WM8750 devices not supported\n"); - ret = -EINVAL; - goto err; - } - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - codec->name = "WM8750"; - codec->owner = THIS_MODULE; - codec->bias_level = SND_SOC_BIAS_STANDBY; - codec->set_bias_level = wm8750_set_bias_level; - codec->dai = &wm8750_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(wm8750->reg_cache) + 1; - codec->reg_cache = &wm8750->reg_cache; - snd_soc_codec_set_drvdata(codec, wm8750); - - memcpy(codec->reg_cache, wm8750_reg, sizeof(wm8750->reg_cache)); + struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec); + int reg, ret; - ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); + codec->control_data = wm8750->control_data; + ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8750->control_type); if (ret < 0) { printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret); - goto err; + return ret; } ret = wm8750_reset(codec); if (ret < 0) { printk(KERN_ERR "wm8750: failed to reset: %d\n", ret); - goto err; + return ret; } /* charge output caps */ @@ -815,150 +731,133 @@ static int wm8750_register(struct wm8750_priv *wm8750, reg = snd_soc_read(codec, WM8750_RINVOL); snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100); - wm8750_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err; - } - - ret = snd_soc_register_dais(&wm8750_dai, 1); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAIs: %d\n", ret); - goto err_codec; - } - - return 0; - -err_codec: - snd_soc_unregister_codec(codec); -err: - kfree(wm8750); + snd_soc_add_controls(codec, wm8750_snd_controls, + ARRAY_SIZE(wm8750_snd_controls)); + wm8750_add_widgets(codec); return ret; } -static void wm8750_unregister(struct wm8750_priv *wm8750) +static int wm8750_remove(struct snd_soc_codec *codec) { - wm8750_set_bias_level(&wm8750->codec, SND_SOC_BIAS_OFF); - snd_soc_unregister_dais(&wm8750_dai, 1); - snd_soc_unregister_codec(&wm8750->codec); - kfree(wm8750); - wm8750_codec = NULL; + wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; } -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - -/* - * WM8750 2 wire address is determined by GPIO5 - * state during powerup. - * low = 0x1a - * high = 0x1b - */ +static struct snd_soc_codec_driver soc_codec_dev_wm8750 = { + .probe = wm8750_probe, + .remove = wm8750_remove, + .suspend = wm8750_suspend, + .resume = wm8750_resume, + .set_bias_level = wm8750_set_bias_level, + .reg_cache_size = sizeof(wm8750_reg), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm8750_reg, +}; -static int wm8750_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +#if defined(CONFIG_SPI_MASTER) +static int __devinit wm8750_spi_probe(struct spi_device *spi) { - struct snd_soc_codec *codec; struct wm8750_priv *wm8750; + int ret; wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL); if (wm8750 == NULL) return -ENOMEM; - codec = &wm8750->codec; - codec->control_data = i2c; - i2c_set_clientdata(i2c, wm8750); - - codec->dev = &i2c->dev; + wm8750->control_data = spi; + wm8750->control_type = SND_SOC_SPI; + spi_set_drvdata(spi, wm8750); - return wm8750_register(wm8750, SND_SOC_I2C); + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_wm8750, &wm8750_dai, 1); + if (ret < 0) + kfree(wm8750); + return ret; } -static int wm8750_i2c_remove(struct i2c_client *client) +static int __devexit wm8750_spi_remove(struct spi_device *spi) { - struct wm8750_priv *wm8750 = i2c_get_clientdata(client); - wm8750_unregister(wm8750); + snd_soc_unregister_codec(&spi->dev); + kfree(spi_get_drvdata(spi)); return 0; } -static const struct i2c_device_id wm8750_i2c_id[] = { - { "wm8750", 0 }, - { "wm8987", 0 }, /* WM8987 is register compatible with WM8750 */ - { } -}; -MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id); - -static struct i2c_driver wm8750_i2c_driver = { +static struct spi_driver wm8750_spi_driver = { .driver = { - .name = "WM8750 I2C Codec", - .owner = THIS_MODULE, + .name = "wm8750-codec", + .bus = &spi_bus_type, + .owner = THIS_MODULE, }, - .probe = wm8750_i2c_probe, - .remove = wm8750_i2c_remove, - .id_table = wm8750_i2c_id, + .probe = wm8750_spi_probe, + .remove = __devexit_p(wm8750_spi_remove), }; -#endif +#endif /* CONFIG_SPI_MASTER */ -#if defined(CONFIG_SPI_MASTER) -static int __devinit wm8750_spi_probe(struct spi_device *spi) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static __devinit int wm8750_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { - struct snd_soc_codec *codec; struct wm8750_priv *wm8750; + int ret; wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL); if (wm8750 == NULL) return -ENOMEM; - codec = &wm8750->codec; - codec->control_data = spi; - codec->dev = &spi->dev; - - dev_set_drvdata(&spi->dev, wm8750); + i2c_set_clientdata(i2c, wm8750); + wm8750->control_data = i2c; + wm8750->control_type = SND_SOC_I2C; - return wm8750_register(wm8750, SND_SOC_SPI); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8750, &wm8750_dai, 1); + if (ret < 0) + kfree(wm8750); + return ret; } -static int __devexit wm8750_spi_remove(struct spi_device *spi) +static __devexit int wm8750_i2c_remove(struct i2c_client *client) { - struct wm8750_priv *wm8750 = dev_get_drvdata(&spi->dev); - wm8750_unregister(wm8750); + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; } -static const struct spi_device_id wm8750_spi_id[] = { +static const struct i2c_device_id wm8750_i2c_id[] = { { "wm8750", 0 }, { "wm8987", 0 }, { } }; -MODULE_DEVICE_TABLE(spi, wm8750_spi_id); +MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id); -static struct spi_driver wm8750_spi_driver = { +static struct i2c_driver wm8750_i2c_driver = { .driver = { - .name = "WM8750 SPI Codec", - .bus = &spi_bus_type, - .owner = THIS_MODULE, + .name = "wm8750-codec", + .owner = THIS_MODULE, }, - .probe = wm8750_spi_probe, - .remove = __devexit_p(wm8750_spi_remove), - .id_table = wm8750_spi_id, + .probe = wm8750_i2c_probe, + .remove = __devexit_p(wm8750_i2c_remove), + .id_table = wm8750_i2c_id, }; #endif static int __init wm8750_modinit(void) { - int ret; + int ret = 0; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8750_i2c_driver); - if (ret != 0) - pr_err("Failed to register WM8750 I2C driver: %d\n", ret); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n", + ret); + } #endif #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&wm8750_spi_driver); - if (ret != 0) - pr_err("Failed to register WM8750 SPI driver: %d\n", ret); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n", + ret); + } #endif - return 0; + return ret; } module_init(wm8750_modinit); |