#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;
+ enum snd_soc_control_type control_type;
+ void *control_data;
+ 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_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 wm8750_priv *wm8750 = codec->private_data;
+ 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;
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;
.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,
.formats = WM8750_FORMATS,},
.ops = &wm8750_dai_ops,
};
-EXPORT_SYMBOL_GPL(wm8750_dai);
-static void wm8750_work(struct work_struct *work)
+static int wm8750_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
- 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);
- 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;
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;
}
-/*
- * 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_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_codec *codec = socdev->card->codec;
- int reg, ret = 0;
-
- codec->name = "WM8750";
- codec->owner = THIS_MODULE;
- 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;
+ 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;
- }
-
- /* 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;
+ return ret;
}
/* 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);
ARRAY_SIZE(wm8750_snd_controls));
wm8750_add_widgets(codec);
return ret;
-
-err:
- kfree(codec->reg_cache);
- 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;
-
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-
-/*
- * WM8750 2 wire address is determined by GPIO5
- * state during powerup.
- * low = 0x1a
- * high = 0x1b
- */
-
-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;
-
- i2c_set_clientdata(i2c, codec);
- codec->control_data = i2c;
-
- ret = wm8750_init(socdev, SND_SOC_I2C);
- if (ret < 0)
- pr_err("failed to initialise WM8750\n");
-
- return ret;
}
-static int wm8750_i2c_remove(struct i2c_client *client)
+static int wm8750_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
- kfree(codec->reg_cache);
+ wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static const struct i2c_device_id wm8750_i2c_id[] = {
- { "wm8750", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
-
-static struct i2c_driver wm8750_i2c_driver = {
- .driver = {
- .name = "WM8750 I2C Codec",
- .owner = THIS_MODULE,
- },
- .probe = wm8750_i2c_probe,
- .remove = wm8750_i2c_remove,
- .id_table = wm8750_i2c_id,
+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_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;
+ struct wm8750_priv *wm8750;
int ret;
- codec->control_data = spi;
+ wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+ if (wm8750 == NULL)
+ return -ENOMEM;
+
+ wm8750->control_data = spi;
+ wm8750->control_type = SND_SOC_SPI;
+ spi_set_drvdata(spi, wm8750);
- ret = wm8750_init(socdev, SND_SOC_SPI);
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_dev_wm8750, &wm8750_dai, 1);
if (ret < 0)
- dev_err(&spi->dev, "failed to initialise WM8750\n");
-
+ kfree(wm8750);
return ret;
}
static int __devexit wm8750_spi_remove(struct spi_device *spi)
{
+ snd_soc_unregister_codec(&spi->dev);
+ kfree(spi_get_drvdata(spi));
return 0;
}
static struct spi_driver wm8750_spi_driver = {
.driver = {
- .name = "wm8750",
+ .name = "wm8750-codec",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = wm8750_spi_probe,
.remove = __devexit_p(wm8750_spi_remove),
};
-#endif
+#endif /* CONFIG_SPI_MASTER */
-static int wm8750_probe(struct platform_device *pdev)
+#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_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);
+ if (wm8750 == NULL)
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);
- }
-#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");
- }
-#endif
+ i2c_set_clientdata(i2c, wm8750);
+ wm8750->control_data = i2c;
+ wm8750->control_type = SND_SOC_I2C;
- if (ret != 0) {
- kfree(codec->private_data);
- kfree(codec);
- }
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8750, &wm8750_dai, 1);
+ if (ret < 0)
+ kfree(wm8750);
return ret;
}
-/*
- * This function forces any delayed work to be queued and run.
- */
-static int run_delayed_work(struct delayed_work *dwork)
+static __devexit int wm8750_i2c_remove(struct i2c_client *client)
{
- int ret;
+ snd_soc_unregister_codec(&client->dev);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static const struct i2c_device_id wm8750_i2c_id[] = {
+ { "wm8750", 0 },
+ { "wm8987", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
- /* cancel any work waiting to be queued. */
- ret = cancel_delayed_work(dwork);
+static struct i2c_driver wm8750_i2c_driver = {
+ .driver = {
+ .name = "wm8750-codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8750_i2c_probe,
+ .remove = __devexit_p(wm8750_i2c_remove),
+ .id_table = wm8750_i2c_id,
+};
+#endif
- /* 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();
+static int __init wm8750_modinit(void)
+{
+ int ret = 0;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ ret = i2c_add_driver(&wm8750_i2c_driver);
+ 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) {
+ printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
+ ret);
}
+#endif
return ret;
}
+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);
projects / mv-sheeva.git / blobdiff