#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
+#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
0x100,
};
-static inline unsigned int wm8728_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
- BUG_ON(reg > ARRAY_SIZE(wm8728_reg_defaults));
- return cache[reg];
-}
-
-static inline void wm8728_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
- BUG_ON(reg > ARRAY_SIZE(wm8728_reg_defaults));
- cache[reg] = value;
-}
-
-/*
- * write to the WM8728 register space
- */
-static int wm8728_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[2];
-
- /* data is
- * D15..D9 WM8728 register offset
- * D8...D0 register data
- */
- data[0] = (reg << 1) | ((value >> 8) & 0x0001);
- data[1] = value & 0x00ff;
-
- wm8728_write_reg_cache(codec, reg, value);
-
- if (codec->hw_write(codec->control_data, data, 2) == 2)
- return 0;
- else
- return -EIO;
-}
-
static const DECLARE_TLV_DB_SCALE(wm8728_tlv, -12750, 50, 1);
static const struct snd_kcontrol_new wm8728_snd_controls[] = {
SOC_SINGLE("Deemphasis", WM8728_DACCTL, 1, 1, 0),
};
-static int wm8728_add_controls(struct snd_soc_codec *codec)
-{
- int err, i;
-
- for (i = 0; i < ARRAY_SIZE(wm8728_snd_controls); i++) {
- err = snd_ctl_add(codec->card,
- snd_soc_cnew(&wm8728_snd_controls[i],
- codec, NULL));
- if (err < 0)
- return err;
- }
-
- return 0;
-}
-
/*
* DAPM controls.
*/
snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
- snd_soc_dapm_new_widgets(codec);
-
return 0;
}
static int wm8728_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = wm8728_read_reg_cache(codec, WM8728_DACCTL);
+ u16 mute_reg = snd_soc_read(codec, WM8728_DACCTL);
if (mute)
- wm8728_write(codec, WM8728_DACCTL, mute_reg | 1);
+ snd_soc_write(codec, WM8728_DACCTL, mute_reg | 1);
else
- wm8728_write(codec, WM8728_DACCTL, mute_reg & ~1);
+ snd_soc_write(codec, WM8728_DACCTL, mute_reg & ~1);
return 0;
}
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->codec;
- u16 dac = wm8728_read_reg_cache(codec, WM8728_DACCTL);
+ struct snd_soc_codec *codec = socdev->card->codec;
+ u16 dac = snd_soc_read(codec, WM8728_DACCTL);
dac &= ~0x18;
return -EINVAL;
}
- wm8728_write(codec, WM8728_DACCTL, dac);
+ snd_soc_write(codec, WM8728_DACCTL, dac);
return 0;
}
unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
- u16 iface = wm8728_read_reg_cache(codec, WM8728_IFCTL);
+ u16 iface = snd_soc_read(codec, WM8728_IFCTL);
/* Currently only I2S is supported by the driver, though the
* hardware is more flexible.
return -EINVAL;
}
- wm8728_write(codec, WM8728_IFCTL, iface);
+ snd_soc_write(codec, WM8728_IFCTL, iface);
return 0;
}
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
/* Power everything up... */
- reg = wm8728_read_reg_cache(codec, WM8728_DACCTL);
- wm8728_write(codec, WM8728_DACCTL, reg & ~0x4);
+ reg = snd_soc_read(codec, WM8728_DACCTL);
+ snd_soc_write(codec, WM8728_DACCTL, reg & ~0x4);
/* ..then sync in the register cache. */
for (i = 0; i < ARRAY_SIZE(wm8728_reg_defaults); i++)
- wm8728_write(codec, i,
- wm8728_read_reg_cache(codec, i));
+ snd_soc_write(codec, i,
+ snd_soc_read(codec, i));
}
break;
case SND_SOC_BIAS_OFF:
- reg = wm8728_read_reg_cache(codec, WM8728_DACCTL);
- wm8728_write(codec, WM8728_DACCTL, reg | 0x4);
+ reg = snd_soc_read(codec, WM8728_DACCTL);
+ snd_soc_write(codec, WM8728_DACCTL, reg | 0x4);
break;
}
codec->bias_level = level;
#define WM8728_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
+static struct snd_soc_dai_ops wm8728_dai_ops = {
+ .hw_params = wm8728_hw_params,
+ .digital_mute = wm8728_mute,
+ .set_fmt = wm8728_set_dai_fmt,
+};
+
struct snd_soc_dai wm8728_dai = {
.name = "WM8728",
.playback = {
.rates = WM8728_RATES,
.formats = WM8728_FORMATS,
},
- .ops = {
- .hw_params = wm8728_hw_params,
- .digital_mute = wm8728_mute,
- .set_fmt = wm8728_set_dai_fmt,
- }
+ .ops = &wm8728_dai_ops,
};
EXPORT_SYMBOL_GPL(wm8728_dai);
static int wm8728_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
static int wm8728_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
- wm8728_set_bias_level(codec, codec->suspend_bias_level);
+ wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
* initialise the WM8728 driver
* register the mixer and dsp interfaces with the kernel
*/
-static int wm8728_init(struct snd_soc_device *socdev)
+static int wm8728_init(struct snd_soc_device *socdev,
+ enum snd_soc_control_type control)
{
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
int ret = 0;
codec->name = "WM8728";
codec->owner = THIS_MODULE;
- codec->read = wm8728_read_reg_cache;
- codec->write = wm8728_write;
codec->set_bias_level = wm8728_set_bias_level;
codec->dai = &wm8728_dai;
codec->num_dai = 1;
if (codec->reg_cache == NULL)
return -ENOMEM;
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
+ if (ret < 0) {
+ printk(KERN_ERR "wm8728: failed to configure cache I/O: %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 "wm8728: failed to create pcms\n");
- goto pcm_err;
+ goto err;
}
/* power on device */
wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8728_add_controls(codec);
+ snd_soc_add_controls(codec, wm8728_snd_controls,
+ ARRAY_SIZE(wm8728_snd_controls));
wm8728_add_widgets(codec);
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- printk(KERN_ERR "wm8728: failed to register card\n");
- goto card_err;
- }
return ret;
-card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-pcm_err:
+err:
kfree(codec->reg_cache);
return ret;
}
const struct i2c_device_id *id)
{
struct snd_soc_device *socdev = wm8728_socdev;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
int ret;
i2c_set_clientdata(i2c, codec);
codec->control_data = i2c;
- ret = wm8728_init(socdev);
+ ret = wm8728_init(socdev, SND_SOC_I2C);
if (ret < 0)
pr_err("failed to initialise WM8728\n");
static int __devinit wm8728_spi_probe(struct spi_device *spi)
{
struct snd_soc_device *socdev = wm8728_socdev;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
int ret;
codec->control_data = spi;
- ret = wm8728_init(socdev);
+ ret = wm8728_init(socdev, SND_SOC_SPI);
if (ret < 0)
dev_err(&spi->dev, "failed to initialise WM8728\n");
.probe = wm8728_spi_probe,
.remove = __devexit_p(wm8728_spi_remove),
};
-
-static int wm8728_spi_write(struct spi_device *spi, const char *data, int len)
-{
- struct spi_transfer t;
- struct spi_message m;
- u8 msg[2];
-
- if (len <= 0)
- return 0;
-
- msg[0] = data[0];
- msg[1] = data[1];
-
- spi_message_init(&m);
- memset(&t, 0, (sizeof t));
-
- t.tx_buf = &msg[0];
- t.len = len;
-
- spi_message_add_tail(&t, &m);
- spi_sync(spi, &m);
-
- return len;
-}
#endif /* CONFIG_SPI_MASTER */
static int wm8728_probe(struct platform_device *pdev)
if (codec == NULL)
return -ENOMEM;
- socdev->codec = codec;
+ socdev->card->codec = codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
if (setup->i2c_address) {
- codec->hw_write = (hw_write_t)i2c_master_send;
ret = wm8728_add_i2c_device(pdev, setup);
}
#endif
#if defined(CONFIG_SPI_MASTER)
if (setup->spi) {
- codec->hw_write = (hw_write_t)wm8728_spi_write;
ret = spi_register_driver(&wm8728_spi_driver);
if (ret != 0)
printk(KERN_ERR "can't add spi driver");
static int wm8728_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
if (codec->control_data)
wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm8728);
-static int __devinit wm8728_modinit(void)
+static int __init wm8728_modinit(void)
{
return snd_soc_register_dai(&wm8728_dai);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff