diff options
Diffstat (limited to 'sound/soc/codecs/wm8961.c')
-rw-r--r-- | sound/soc/codecs/wm8961.c | 241 |
1 files changed, 77 insertions, 164 deletions
diff --git a/sound/soc/codecs/wm8961.c b/sound/soc/codecs/wm8961.c index 2549d3a297ab..5ebe2c04e5cf 100644 --- a/sound/soc/codecs/wm8961.c +++ b/sound/soc/codecs/wm8961.c @@ -288,7 +288,8 @@ static u16 wm8961_reg_defaults[] = { }; struct wm8961_priv { - struct snd_soc_codec codec; + enum snd_soc_control_type control_type; + void *control_data; int sysclk; u16 reg_cache[WM8961_MAX_REGISTER]; }; @@ -940,8 +941,8 @@ static struct snd_soc_dai_ops wm8961_dai_ops = { .set_clkdiv = wm8961_set_clkdiv, }; -struct snd_soc_dai wm8961_dai = { - .name = "WM8961", +static struct snd_soc_dai_driver wm8961_dai = { + .name = "wm8961-hifi", .playback = { .stream_name = "HiFi Playback", .channels_min = 1, @@ -956,140 +957,24 @@ struct snd_soc_dai wm8961_dai = { .formats = WM8961_FORMATS,}, .ops = &wm8961_dai_ops, }; -EXPORT_SYMBOL_GPL(wm8961_dai); - -static struct snd_soc_codec *wm8961_codec; - -static int wm8961_probe(struct platform_device *pdev) +static int wm8961_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; + struct wm8961_priv *wm8961 = snd_soc_codec_get_drvdata(codec); int ret = 0; - - if (wm8961_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; - } - - socdev->card->codec = wm8961_codec; - codec = wm8961_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, wm8961_snd_controls, - ARRAY_SIZE(wm8961_snd_controls)); - snd_soc_dapm_new_controls(codec, wm8961_dapm_widgets, - ARRAY_SIZE(wm8961_dapm_widgets)); - snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths)); - - return ret; - -pcm_err: - return ret; -} - -static int wm8961_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; -} - -#ifdef CONFIG_PM -static int wm8961_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - - wm8961_set_bias_level(codec, SND_SOC_BIAS_OFF); - - return 0; -} - -static int wm8961_resume(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - u16 *reg_cache = codec->reg_cache; - int i; - - for (i = 0; i < codec->reg_cache_size; i++) { - if (reg_cache[i] == wm8961_reg_defaults[i]) - continue; - - if (i == WM8961_SOFTWARE_RESET) - continue; - - snd_soc_write(codec, i, reg_cache[i]); - } - - wm8961_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - return 0; -} -#else -#define wm8961_suspend NULL -#define wm8961_resume NULL -#endif - -struct snd_soc_codec_device soc_codec_dev_wm8961 = { - .probe = wm8961_probe, - .remove = wm8961_remove, - .suspend = wm8961_suspend, - .resume = wm8961_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8961); - -static int wm8961_register(struct wm8961_priv *wm8961) -{ - struct snd_soc_codec *codec = &wm8961->codec; - int ret; u16 reg; - if (wm8961_codec) { - dev_err(codec->dev, "Another WM8961 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, wm8961); - codec->name = "WM8961"; - codec->owner = THIS_MODULE; - codec->dai = &wm8961_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(wm8961->reg_cache); - codec->reg_cache = &wm8961->reg_cache; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = wm8961_set_bias_level; - codec->volatile_register = wm8961_volatile_register; - - memcpy(codec->reg_cache, wm8961_reg_defaults, - sizeof(wm8961_reg_defaults)); - + codec->control_data = wm8961->control_data; ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); if (ret != 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - goto err; + return ret; } reg = snd_soc_read(codec, WM8961_SOFTWARE_RESET); if (reg != 0x1801) { dev_err(codec->dev, "Device is not a WM8961: ID=0x%x\n", reg); - ret = -EINVAL; - goto err; + return -EINVAL; } /* This isn't volatile - readback doesn't correspond to write */ @@ -1102,7 +987,7 @@ static int wm8961_register(struct wm8961_priv *wm8961) ret = wm8961_reset(codec); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset\n"); - goto err; + return ret; } /* Enable class W */ @@ -1140,64 +1025,90 @@ static int wm8961_register(struct wm8961_priv *wm8961) wm8961_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - wm8961_dai.dev = codec->dev; + snd_soc_add_controls(codec, wm8961_snd_controls, + ARRAY_SIZE(wm8961_snd_controls)); + snd_soc_dapm_new_controls(codec, wm8961_dapm_widgets, + ARRAY_SIZE(wm8961_dapm_widgets)); + snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths)); - wm8961_codec = codec; + return 0; +} - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err; - } +static int wm8961_remove(struct snd_soc_codec *codec) +{ + wm8961_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; +} - ret = snd_soc_register_dai(&wm8961_dai); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAI: %d\n", ret); - goto err_codec; - } +#ifdef CONFIG_PM +static int wm8961_suspend(struct snd_soc_codec *codec, pm_message_t state) +{ + wm8961_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; - -err_codec: - snd_soc_unregister_codec(codec); -err: - kfree(wm8961); - return ret; } -static void wm8961_unregister(struct wm8961_priv *wm8961) +static int wm8961_resume(struct snd_soc_codec *codec) { - wm8961_set_bias_level(&wm8961->codec, SND_SOC_BIAS_OFF); - snd_soc_unregister_dai(&wm8961_dai); - snd_soc_unregister_codec(&wm8961->codec); - kfree(wm8961); - wm8961_codec = NULL; + u16 *reg_cache = codec->reg_cache; + int i; + + for (i = 0; i < codec->driver->reg_cache_size; i++) { + if (reg_cache[i] == wm8961_reg_defaults[i]) + continue; + + if (i == WM8961_SOFTWARE_RESET) + continue; + + snd_soc_write(codec, i, reg_cache[i]); + } + + wm8961_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + return 0; } +#else +#define wm8961_suspend NULL +#define wm8961_resume NULL +#endif +static struct snd_soc_codec_driver soc_codec_dev_wm8961 = { + .probe = wm8961_probe, + .remove = wm8961_remove, + .suspend = wm8961_suspend, + .resume = wm8961_resume, + .set_bias_level = wm8961_set_bias_level, + .reg_cache_size = sizeof(wm8961_reg_defaults), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm8961_reg_defaults, + .volatile_register = wm8961_volatile_register, +}; + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static __devinit int wm8961_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8961_priv *wm8961; - struct snd_soc_codec *codec; + int ret; wm8961 = kzalloc(sizeof(struct wm8961_priv), GFP_KERNEL); if (wm8961 == NULL) return -ENOMEM; - codec = &wm8961->codec; - i2c_set_clientdata(i2c, wm8961); - codec->control_data = i2c; - - codec->dev = &i2c->dev; + wm8961->control_data = i2c; - return wm8961_register(wm8961); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8961, &wm8961_dai, 1); + if (ret < 0) + kfree(wm8961); + return ret; } static __devexit int wm8961_i2c_remove(struct i2c_client *client) { - struct wm8961_priv *wm8961 = i2c_get_clientdata(client); - wm8961_unregister(wm8961); + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; } @@ -1209,35 +1120,37 @@ MODULE_DEVICE_TABLE(i2c, wm8961_i2c_id); static struct i2c_driver wm8961_i2c_driver = { .driver = { - .name = "wm8961", + .name = "wm8961-codec", .owner = THIS_MODULE, }, .probe = wm8961_i2c_probe, .remove = __devexit_p(wm8961_i2c_remove), .id_table = wm8961_i2c_id, }; +#endif static int __init wm8961_modinit(void) { - int ret; - + int ret = 0; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8961_i2c_driver); if (ret != 0) { - printk(KERN_ERR "Failed to register WM8961 I2C driver: %d\n", + printk(KERN_ERR "Failed to register wm8961 I2C driver: %d\n", ret); } - +#endif return ret; } module_init(wm8961_modinit); static void __exit wm8961_exit(void) { +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8961_i2c_driver); +#endif } module_exit(wm8961_exit); - MODULE_DESCRIPTION("ASoC WM8961 driver"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_LICENSE("GPL"); |