#include "wm8750.h"
-#define WM8750_VERSION "0.12"
-
-/* codec private data */
-struct wm8750_priv {
- unsigned int sysclk;
-};
-
/*
* wm8750 register cache
* We can't read the WM8750 register space when we
0x0079, 0x0079, 0x0079, /* 40 */
};
+/* codec private data */
+struct wm8750_priv {
+ unsigned int sysclk;
+ struct snd_soc_codec codec;
+ u16 reg_cache[ARRAY_SIZE(wm8750_reg)];
+};
+
#define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0)
/*
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8750_priv *wm8750 = codec->private_data;
+ struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
switch (freq) {
case 11289600:
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 wm8750_priv *wm8750 = codec->private_data;
+ 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;
int coeff = get_coeff(wm8750->sysclk, params_rate(params));
snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
break;
case SND_SOC_BIAS_PREPARE:
- /* set vmid to 5k for quick power up */
- snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
break;
case SND_SOC_BIAS_STANDBY:
+ if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ /* Set VMID to 5k */
+ snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
+
+ /* ...and ramp */
+ msleep(1000);
+ }
+
/* mute dac and set vmid to 500k, enable VREF */
snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
break;
};
EXPORT_SYMBOL_GPL(wm8750_dai);
-static void wm8750_work(struct work_struct *work)
-{
- struct snd_soc_codec *codec =
- container_of(work, struct snd_soc_codec, delayed_work.work);
- wm8750_set_bias_level(codec, codec->bias_level);
-}
-
static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- /* charge wm8750 caps */
- if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
- wm8750_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
- codec->bias_level = SND_SOC_BIAS_ON;
- schedule_delayed_work(&codec->delayed_work,
- msecs_to_jiffies(1000));
+ return 0;
+}
+
+static struct snd_soc_codec *wm8750_codec;
+
+static int wm8750_probe(struct platform_device *pdev)
+{
+ 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_init(struct snd_soc_device *socdev,
- enum snd_soc_control_type control)
+static int wm8750_register(struct wm8750_priv *wm8750,
+ enum snd_soc_control_type control)
{
- struct snd_soc_codec *codec = socdev->card->codec;
+ 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);
- codec->reg_cache = kmemdup(wm8750_reg, sizeof(wm8750_reg), GFP_KERNEL);
- if (codec->reg_cache == NULL)
- return -ENOMEM;
+ 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));
ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
if (ret < 0) {
goto err;
}
- /* 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;
- }
-
/* charge output caps */
- wm8750_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
- codec->bias_level = SND_SOC_BIAS_STANDBY;
- schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1000));
+ wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* set the update bits */
reg = snd_soc_read(codec, WM8750_LDAC);
reg = snd_soc_read(codec, WM8750_RINVOL);
snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100);
- snd_soc_add_controls(codec, wm8750_snd_controls,
- ARRAY_SIZE(wm8750_snd_controls));
- wm8750_add_widgets(codec);
- return ret;
+ 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(codec->reg_cache);
+ kfree(wm8750);
return ret;
}
-/* If the i2c layer weren't so broken, we could pass this kind of data
- around */
-static struct snd_soc_device *wm8750_socdev;
+static void wm8750_unregister(struct wm8750_priv *wm8750)
+{
+ 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;
+}
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int wm8750_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
- struct snd_soc_device *socdev = wm8750_socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- int ret;
+ struct snd_soc_codec *codec;
+ struct wm8750_priv *wm8750;
+
+ wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+ if (wm8750 == NULL)
+ return -ENOMEM;
- i2c_set_clientdata(i2c, codec);
+ codec = &wm8750->codec;
codec->control_data = i2c;
+ i2c_set_clientdata(i2c, wm8750);
- ret = wm8750_init(socdev, SND_SOC_I2C);
- if (ret < 0)
- pr_err("failed to initialise WM8750\n");
+ codec->dev = &i2c->dev;
- return ret;
+ return wm8750_register(wm8750, SND_SOC_I2C);
}
static int wm8750_i2c_remove(struct i2c_client *client)
{
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
- kfree(codec->reg_cache);
+ struct wm8750_priv *wm8750 = i2c_get_clientdata(client);
+ wm8750_unregister(wm8750);
return 0;
}
.remove = wm8750_i2c_remove,
.id_table = wm8750_i2c_id,
};
-
-static int wm8750_add_i2c_device(struct platform_device *pdev,
- const struct wm8750_setup_data *setup)
-{
- struct i2c_board_info info;
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- int ret;
-
- ret = i2c_add_driver(&wm8750_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, "wm8750", 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(&wm8750_i2c_driver);
- return -ENODEV;
-}
#endif
#if defined(CONFIG_SPI_MASTER)
static int __devinit wm8750_spi_probe(struct spi_device *spi)
{
- struct snd_soc_device *socdev = wm8750_socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- int ret;
+ struct snd_soc_codec *codec;
+ struct wm8750_priv *wm8750;
+
+ wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+ if (wm8750 == NULL)
+ return -ENOMEM;
+ codec = &wm8750->codec;
codec->control_data = spi;
+ codec->dev = &spi->dev;
- ret = wm8750_init(socdev, SND_SOC_SPI);
- if (ret < 0)
- dev_err(&spi->dev, "failed to initialise WM8750\n");
+ dev_set_drvdata(&spi->dev, wm8750);
- return ret;
+ return wm8750_register(wm8750, SND_SOC_SPI);
}
static int __devexit wm8750_spi_remove(struct spi_device *spi)
{
+ struct wm8750_priv *wm8750 = dev_get_drvdata(&spi->dev);
+ wm8750_unregister(wm8750);
return 0;
}
};
#endif
-static int wm8750_probe(struct platform_device *pdev)
+static int __init wm8750_modinit(void)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct wm8750_setup_data *setup = socdev->codec_data;
- struct snd_soc_codec *codec;
- struct wm8750_priv *wm8750;
int ret;
-
- pr_info("WM8750 Audio Codec %s", WM8750_VERSION);
- codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (codec == NULL)
- return -ENOMEM;
-
- wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
- if (wm8750 == NULL) {
- kfree(codec);
- return -ENOMEM;
- }
-
- codec->private_data = wm8750;
- socdev->card->codec = codec;
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
- wm8750_socdev = socdev;
- INIT_DELAYED_WORK(&codec->delayed_work, wm8750_work);
-
- ret = -ENODEV;
-
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- if (setup->i2c_address) {
- ret = wm8750_add_i2c_device(pdev, setup);
- }
+ ret = i2c_add_driver(&wm8750_i2c_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM8750 I2C driver: %d\n", ret);
#endif
#if defined(CONFIG_SPI_MASTER)
- if (setup->spi) {
- ret = spi_register_driver(&wm8750_spi_driver);
- if (ret != 0)
- printk(KERN_ERR "can't add spi driver");
- }
+ ret = spi_register_driver(&wm8750_spi_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM8750 SPI driver: %d\n", ret);
#endif
-
- if (ret != 0) {
- kfree(codec->private_data);
- kfree(codec);
- }
- return ret;
-}
-
-/*
- * This function forces any delayed work to be queued and run.
- */
-static int run_delayed_work(struct delayed_work *dwork)
-{
- int ret;
-
- /* cancel any work waiting to be queued. */
- ret = cancel_delayed_work(dwork);
-
- /* if there was any work waiting then we run it now and
- * wait for it's completion */
- if (ret) {
- schedule_delayed_work(dwork, 0);
- flush_scheduled_work();
- }
- return ret;
+ return 0;
}
+module_init(wm8750_modinit);
-/* power down chip */
-static int wm8750_remove(struct platform_device *pdev)
+static void __exit wm8750_exit(void)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
- if (codec->control_data)
- wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
- run_delayed_work(&codec->delayed_work);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- i2c_unregister_device(codec->control_data);
i2c_del_driver(&wm8750_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
spi_unregister_driver(&wm8750_spi_driver);
#endif
- kfree(codec->private_data);
- kfree(codec);
-
- 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);
-
-static int __init wm8750_modinit(void)
-{
- return snd_soc_register_dai(&wm8750_dai);
-}
-module_init(wm8750_modinit);
-
-static void __exit wm8750_exit(void)
-{
- snd_soc_unregister_dai(&wm8750_dai);
}
module_exit(wm8750_exit);
git.openpandora.org / pandora-kernel.git / blobdiff