#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
+#include <sound/tlv.h>
#include <sound/initval.h>
#include "wm8711.h"
-#define AUDIO_NAME "wm8711"
-#define WM8711_VERSION "0.3"
+static struct snd_soc_codec *wm8711_codec;
/* codec private data */
struct wm8711_priv {
+ struct snd_soc_codec codec;
+ u16 reg_cache[WM8711_CACHEREGNUM];
unsigned int sysclk;
};
0x009f, 0x000a, 0x0000, 0x0000
};
-/*
- * read wm8711 register cache
- */
-static inline unsigned int wm8711_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
- if (reg == WM8711_RESET)
- return 0;
- if (reg >= WM8711_CACHEREGNUM)
- return -1;
- return cache[reg];
-}
+#define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0)
-/*
- * write wm8711 register cache
- */
-static inline void wm8711_write_reg_cache(struct snd_soc_codec *codec,
- u16 reg, unsigned int value)
-{
- u16 *cache = codec->reg_cache;
- if (reg >= WM8711_CACHEREGNUM)
- return;
- cache[reg] = value;
-}
-
-/*
- * write to the WM8711 register space
- */
-static int wm8711_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
-{
- u8 data[2];
-
- /* data is
- * D15..D9 WM8753 register offset
- * D8...D0 register data
- */
- data[0] = (reg << 1) | ((value >> 8) & 0x0001);
- data[1] = value & 0x00ff;
-
- wm8711_write_reg_cache(codec, reg, value);
- if (codec->hw_write(codec->control_data, data, 2) == 2)
- return 0;
- else
- return -EIO;
-}
-
-#define wm8711_reset(c) wm8711_write(c, WM8711_RESET, 0)
+static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
static const struct snd_kcontrol_new wm8711_snd_controls[] = {
-SOC_DOUBLE_R("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V,
- 0, 127, 0),
+SOC_DOUBLE_R_TLV("Master Playback Volume", WM8711_LOUT1V, WM8711_ROUT1V,
+ 0, 127, 0, out_tlv),
SOC_DOUBLE_R("Master Playback ZC Switch", WM8711_LOUT1V, WM8711_ROUT1V,
7, 1, 0),
};
-/* add non dapm controls */
-static int wm8711_add_controls(struct snd_soc_codec *codec)
-{
- int err, i;
-
- for (i = 0; i < ARRAY_SIZE(wm8711_snd_controls); i++) {
- err = snd_ctl_add(codec->card,
- snd_soc_cnew(&wm8711_snd_controls[i], codec,
- NULL));
- if (err < 0)
- return err;
- }
-
- return 0;
-}
-
/* Output Mixer */
static const struct snd_kcontrol_new wm8711_output_mixer_controls[] = {
SOC_DAPM_SINGLE("Line Bypass Switch", WM8711_APANA, 3, 1, 0),
{
struct snd_soc_codec *codec = dai->codec;
struct wm8711_priv *wm8711 = codec->private_data;
- u16 iface = wm8711_read_reg_cache(codec, WM8711_IFACE) & 0xfffc;
+ u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc;
int i = get_coeff(wm8711->sysclk, params_rate(params));
u16 srate = (coeff_div[i].sr << 2) |
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
- wm8711_write(codec, WM8711_SRATE, srate);
+ snd_soc_write(codec, WM8711_SRATE, srate);
/* bit size */
switch (params_format(params)) {
break;
}
- wm8711_write(codec, WM8711_IFACE, iface);
+ snd_soc_write(codec, WM8711_IFACE, iface);
return 0;
}
struct snd_soc_codec *codec = dai->codec;
/* set active */
- wm8711_write(codec, WM8711_ACTIVE, 0x0001);
+ snd_soc_write(codec, WM8711_ACTIVE, 0x0001);
return 0;
}
/* deactivate */
if (!codec->active) {
udelay(50);
- wm8711_write(codec, WM8711_ACTIVE, 0x0);
+ snd_soc_write(codec, WM8711_ACTIVE, 0x0);
}
}
static int wm8711_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = wm8711_read_reg_cache(codec, WM8711_APDIGI) & 0xfff7;
+ u16 mute_reg = snd_soc_read(codec, WM8711_APDIGI) & 0xfff7;
if (mute)
- wm8711_write(codec, WM8711_APDIGI, mute_reg | 0x8);
+ snd_soc_write(codec, WM8711_APDIGI, mute_reg | 0x8);
else
- wm8711_write(codec, WM8711_APDIGI, mute_reg);
+ snd_soc_write(codec, WM8711_APDIGI, mute_reg);
return 0;
}
}
/* set iface */
- wm8711_write(codec, WM8711_IFACE, iface);
+ snd_soc_write(codec, WM8711_IFACE, iface);
return 0;
}
static int wm8711_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 reg = wm8711_read_reg_cache(codec, WM8711_PWR) & 0xff7f;
+ u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f;
switch (level) {
case SND_SOC_BIAS_ON:
- wm8711_write(codec, WM8711_PWR, reg);
+ snd_soc_write(codec, WM8711_PWR, reg);
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- wm8711_write(codec, WM8711_PWR, reg | 0x0040);
+ snd_soc_write(codec, WM8711_PWR, reg | 0x0040);
break;
case SND_SOC_BIAS_OFF:
- wm8711_write(codec, WM8711_ACTIVE, 0x0);
- wm8711_write(codec, WM8711_PWR, 0xffff);
+ snd_soc_write(codec, WM8711_ACTIVE, 0x0);
+ snd_soc_write(codec, WM8711_PWR, 0xffff);
break;
}
codec->bias_level = level;
return 0;
}
-#define WM8711_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
- SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
- SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
- SNDRV_PCM_RATE_96000)
+#define WM8711_RATES SNDRV_PCM_RATE_8000_96000
#define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
.channels_min = 1,
.channels_max = 2,
.rates = WM8711_RATES,
- .formats = WM8711_FORMATS,},
+ .formats = WM8711_FORMATS,
+ },
.ops = &wm8711_ops,
};
EXPORT_SYMBOL_GPL(wm8711_dai);
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
- wm8711_write(codec, WM8711_ACTIVE, 0x0);
+ snd_soc_write(codec, WM8711_ACTIVE, 0x0);
wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
return 0;
}
-/*
- * initialise the WM8711 driver
- * register the mixer and dsp interfaces with the kernel
- */
-static int wm8711_init(struct snd_soc_device *socdev)
+static int wm8711_probe(struct platform_device *pdev)
{
- struct snd_soc_codec *codec = socdev->card->codec;
- int reg, ret = 0;
-
- codec->name = "WM8711";
- codec->owner = THIS_MODULE;
- codec->read = wm8711_read_reg_cache;
- codec->write = wm8711_write;
- codec->set_bias_level = wm8711_set_bias_level;
- codec->dai = &wm8711_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = ARRAY_SIZE(wm8711_reg);
- codec->reg_cache = kmemdup(wm8711_reg, sizeof(wm8711_reg), GFP_KERNEL);
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
- if (codec->reg_cache == NULL)
- return -ENOMEM;
+ if (wm8711_codec == NULL) {
+ dev_err(&pdev->dev, "Codec device not registered\n");
+ return -ENODEV;
+ }
- wm8711_reset(codec);
+ socdev->card->codec = wm8711_codec;
+ codec = wm8711_codec;
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
- printk(KERN_ERR "wm8711: failed to create pcms\n");
+ dev_err(codec->dev, "failed to create pcms: %d\n", ret);
goto pcm_err;
}
- /* power on device */
- wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
- /* set the update bits */
- reg = wm8711_read_reg_cache(codec, WM8711_LOUT1V);
- wm8711_write(codec, WM8711_LOUT1V, reg | 0x0100);
- reg = wm8711_read_reg_cache(codec, WM8711_ROUT1V);
- wm8711_write(codec, WM8711_ROUT1V, reg | 0x0100);
-
- wm8711_add_controls(codec);
+ snd_soc_add_controls(codec, wm8711_snd_controls,
+ ARRAY_SIZE(wm8711_snd_controls));
wm8711_add_widgets(codec);
ret = snd_soc_init_card(socdev);
if (ret < 0) {
- printk(KERN_ERR "wm8711: failed to register card\n");
+ dev_err(codec->dev, "failed to register card: %d\n", ret);
goto card_err;
}
+
return ret;
card_err:
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
pcm_err:
- kfree(codec->reg_cache);
return ret;
}
-static struct snd_soc_device *wm8711_socdev;
-
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-
-/*
- * WM8711 2 wire address is determined by GPIO5
- * state during powerup.
- * low = 0x1a
- * high = 0x1b
- */
-#define I2C_DRIVERID_WM8711 0xfefe /* liam - need a proper id */
-
-static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
+/* power down chip */
+static int wm8711_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-/* Magic definition of all other variables and things */
-I2C_CLIENT_INSMOD;
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
-static struct i2c_driver wm8711_i2c_driver;
-static struct i2c_client client_template;
+ return 0;
+}
-/* If the i2c layer weren't so broken, we could pass this kind of data
- around */
+struct snd_soc_codec_device soc_codec_dev_wm8711 = {
+ .probe = wm8711_probe,
+ .remove = wm8711_remove,
+ .suspend = wm8711_suspend,
+ .resume = wm8711_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8711);
-static int wm8711_codec_probe(struct i2c_adapter *adap, int addr, int kind)
+static int wm8711_register(struct wm8711_priv *wm8711,
+ enum snd_soc_control_type control)
{
- struct snd_soc_device *socdev = wm8711_socdev;
- struct wm8711_setup_data *setup = socdev->codec_data;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct i2c_client *i2c;
int ret;
+ struct snd_soc_codec *codec = &wm8711->codec;
+ u16 reg;
- if (addr != setup->i2c_address)
- return -ENODEV;
-
- client_template.adapter = adap;
- client_template.addr = addr;
-
- i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
- if (i2c == NULL) {
- kfree(codec);
- return -ENOMEM;
+ if (wm8711_codec) {
+ dev_err(codec->dev, "Another WM8711 is registered\n");
+ return -EINVAL;
}
- i2c_set_clientdata(i2c, codec);
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ codec->private_data = wm8711;
+ codec->name = "WM8711";
+ codec->owner = THIS_MODULE;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = wm8711_set_bias_level;
+ codec->dai = &wm8711_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = WM8711_CACHEREGNUM;
+ codec->reg_cache = &wm8711->reg_cache;
- codec->control_data = i2c;
+ memcpy(codec->reg_cache, wm8711_reg, sizeof(wm8711_reg));
- ret = i2c_attach_client(i2c);
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
if (ret < 0) {
- pr_err("failed to attach codec at addr %x\n", addr);
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
goto err;
}
- ret = wm8711_init(socdev);
+ ret = wm8711_reset(codec);
if (ret < 0) {
- pr_err("failed to initialise WM8711\n");
+ dev_err(codec->dev, "Failed to issue reset\n");
+ goto err;
+ }
+
+ wm8711_dai.dev = codec->dev;
+
+ wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ /* Latch the update bits */
+ reg = snd_soc_read(codec, WM8711_LOUT1V);
+ snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100);
+ reg = snd_soc_read(codec, WM8711_ROUT1V);
+ snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100);
+
+ wm8711_codec = codec;
+
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
goto err;
}
- return ret;
+ ret = snd_soc_register_dai(&wm8711_dai);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+ goto err_codec;
+ }
+
+ return 0;
+
+err_codec:
+ snd_soc_unregister_codec(codec);
err:
- kfree(codec);
- kfree(i2c);
+ kfree(wm8711);
return ret;
}
-static int wm8711_i2c_detach(struct i2c_client *client)
+static void wm8711_unregister(struct wm8711_priv *wm8711)
{
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
+ wm8711_set_bias_level(&wm8711->codec, SND_SOC_BIAS_OFF);
+ snd_soc_unregister_dai(&wm8711_dai);
+ snd_soc_unregister_codec(&wm8711->codec);
+ kfree(wm8711);
+ wm8711_codec = NULL;
+}
- i2c_detach_client(client);
- kfree(codec->reg_cache);
- kfree(client);
- return 0;
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit wm8711_spi_probe(struct spi_device *spi)
+{
+ struct snd_soc_codec *codec;
+ struct wm8711_priv *wm8711;
+
+ wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL);
+ if (wm8711 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8711->codec;
+ codec->control_data = spi;
+ codec->dev = &spi->dev;
+
+ dev_set_drvdata(&spi->dev, wm8711);
+
+ return wm8711_register(wm8711, SND_SOC_SPI);
}
-static int wm8711_i2c_attach(struct i2c_adapter *adap)
+static int __devexit wm8711_spi_remove(struct spi_device *spi)
{
- return i2c_probe(adap, &addr_data, wm8711_codec_probe);
+ struct wm8711_priv *wm8711 = dev_get_drvdata(&spi->dev);
+
+ wm8711_unregister(wm8711);
+
+ return 0;
}
-/* corgi i2c codec control layer */
-static struct i2c_driver wm8711_i2c_driver = {
+static struct spi_driver wm8711_spi_driver = {
.driver = {
- .name = "WM8711 I2C Codec",
- .owner = THIS_MODULE,
+ .name = "wm8711",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
},
- .id = I2C_DRIVERID_WM8711,
- .attach_adapter = wm8711_i2c_attach,
- .detach_client = wm8711_i2c_detach,
- .command = NULL,
+ .probe = wm8711_spi_probe,
+ .remove = __devexit_p(wm8711_spi_remove),
};
+#endif /* CONFIG_SPI_MASTER */
-static struct i2c_client client_template = {
- .name = "WM8711",
- .driver = &wm8711_i2c_driver,
-};
-#endif
-
-static int wm8711_probe(struct platform_device *pdev)
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static __devinit int wm8711_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct wm8711_setup_data *setup;
- struct snd_soc_codec *codec;
struct wm8711_priv *wm8711;
- int ret = 0;
-
- pr_info("WM8711 Audio Codec %s", WM8711_VERSION);
-
- setup = socdev->codec_data;
- codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (codec == NULL)
- return -ENOMEM;
+ struct snd_soc_codec *codec;
wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL);
- if (wm8711 == NULL) {
- kfree(codec);
+ if (wm8711 == NULL)
return -ENOMEM;
- }
-
- codec->private_data = wm8711;
- socdev->card->codec = codec;
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
- wm8711_socdev = socdev;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- if (setup->i2c_address) {
- normal_i2c[0] = setup->i2c_address;
- codec->hw_write = (hw_write_t)i2c_master_send;
- ret = i2c_add_driver(&wm8711_i2c_driver);
- if (ret != 0)
- printk(KERN_ERR "can't add i2c driver");
- }
-#else
- /* Add other interfaces here */
-#endif
- return ret;
-}
+ codec = &wm8711->codec;
+ codec->hw_write = (hw_write_t)i2c_master_send;
-/* power down chip */
-static int wm8711_remove(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
+ i2c_set_clientdata(i2c, wm8711);
+ codec->control_data = i2c;
- if (codec->control_data)
- wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ codec->dev = &i2c->dev;
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- i2c_del_driver(&wm8711_i2c_driver);
-#endif
- kfree(codec->private_data);
- kfree(codec);
+ return wm8711_register(wm8711, SND_SOC_I2C);
+}
+static __devexit int wm8711_i2c_remove(struct i2c_client *client)
+{
+ struct wm8711_priv *wm8711 = i2c_get_clientdata(client);
+ wm8711_unregister(wm8711);
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_wm8711 = {
- .probe = wm8711_probe,
- .remove = wm8711_remove,
- .suspend = wm8711_suspend,
- .resume = wm8711_resume,
+static const struct i2c_device_id wm8711_i2c_id[] = {
+ { "wm8711", 0 },
+ { }
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8711);
+MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id);
+
+static struct i2c_driver wm8711_i2c_driver = {
+ .driver = {
+ .name = "WM8711 I2C Codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8711_i2c_probe,
+ .remove = __devexit_p(wm8711_i2c_remove),
+ .id_table = wm8711_i2c_id,
+};
+#endif
static int __init wm8711_modinit(void)
{
- return snd_soc_register_dai(&wm8711_dai);
+ int ret;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ ret = i2c_add_driver(&wm8711_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n",
+ ret);
+ }
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&wm8711_spi_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register WM8711 SPI driver: %d\n",
+ ret);
+ }
+#endif
+ return 0;
}
module_init(wm8711_modinit);
static void __exit wm8711_exit(void)
{
- snd_soc_unregister_dai(&wm8711_dai);
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ i2c_del_driver(&wm8711_i2c_driver);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8711_spi_driver);
+#endif
}
module_exit(wm8711_exit);
projects / linux-beck.git / blobdiff