aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/codecs/ak4104.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/ak4104.c')
-rw-r--r--sound/soc/codecs/ak4104.c149
1 files changed, 53 insertions, 96 deletions
diff --git a/sound/soc/codecs/ak4104.c b/sound/soc/codecs/ak4104.c
index 192aebda302..c27f8f59dc6 100644
--- a/sound/soc/codecs/ak4104.c
+++ b/sound/soc/codecs/ak4104.c
@@ -17,8 +17,6 @@
#include <linux/spi/spi.h>
#include <sound/asoundef.h>
-#include "ak4104.h"
-
/* AK4104 registers addresses */
#define AK4104_REG_CONTROL1 0x00
#define AK4104_REG_RESERVED 0x01
@@ -45,11 +43,11 @@
#define AK4104_TX_TXE (1 << 0)
#define AK4104_TX_V (1 << 1)
-#define DRV_NAME "ak4104"
+#define DRV_NAME "ak4104-codec"
struct ak4104_private {
- struct snd_soc_codec codec;
- u8 reg_cache[AK4104_NUM_REGS];
+ enum snd_soc_control_type control_type;
+ void *control_data;
};
static int ak4104_fill_cache(struct snd_soc_codec *codec)
@@ -58,7 +56,7 @@ static int ak4104_fill_cache(struct snd_soc_codec *codec)
u8 *reg_cache = codec->reg_cache;
struct spi_device *spi = codec->control_data;
- for (i = 0; i < codec->reg_cache_size; i++) {
+ for (i = 0; i < codec->driver->reg_cache_size; i++) {
int ret = spi_w8r8(spi, i | AK4104_READ);
if (ret < 0) {
dev_err(&spi->dev, "SPI write failure\n");
@@ -76,7 +74,7 @@ static unsigned int ak4104_read_reg_cache(struct snd_soc_codec *codec,
{
u8 *reg_cache = codec->reg_cache;
- if (reg >= codec->reg_cache_size)
+ if (reg >= codec->driver->reg_cache_size)
return -EINVAL;
return reg_cache[reg];
@@ -88,7 +86,7 @@ static int ak4104_spi_write(struct snd_soc_codec *codec, unsigned int reg,
u8 *cache = codec->reg_cache;
struct spi_device *spi = codec->control_data;
- if (reg >= codec->reg_cache_size)
+ if (reg >= codec->driver->reg_cache_size)
return -EINVAL;
/* only write to the hardware if value has changed */
@@ -145,8 +143,7 @@ static int ak4104_hw_params(struct snd_pcm_substream *substream,
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 snd_soc_codec *codec = rtd->codec;
int val = 0;
/* set the IEC958 bits: consumer mode, no copyright bit */
@@ -178,8 +175,8 @@ static struct snd_soc_dai_ops ak4101_dai_ops = {
.set_fmt = ak4104_set_dai_fmt,
};
-struct snd_soc_dai ak4104_dai = {
- .name = DRV_NAME,
+static struct snd_soc_dai_driver ak4104_dai = {
+ .name = "ak4104-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
@@ -192,45 +189,17 @@ struct snd_soc_dai ak4104_dai = {
.ops = &ak4101_dai_ops,
};
-static struct snd_soc_codec *ak4104_codec;
-
-static int ak4104_spi_probe(struct spi_device *spi)
+static int ak4104_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_codec *codec;
- struct ak4104_private *ak4104;
+ struct ak4104_private *ak4104 = snd_soc_codec_get_drvdata(codec);
int ret, val;
- spi->bits_per_word = 8;
- spi->mode = SPI_MODE_0;
- ret = spi_setup(spi);
- if (ret < 0)
- return ret;
-
- ak4104 = kzalloc(sizeof(struct ak4104_private), GFP_KERNEL);
- if (!ak4104) {
- dev_err(&spi->dev, "could not allocate codec\n");
- return -ENOMEM;
- }
-
- codec = &ak4104->codec;
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->dev = &spi->dev;
- codec->name = DRV_NAME;
- codec->owner = THIS_MODULE;
- codec->dai = &ak4104_dai;
- codec->num_dai = 1;
- snd_soc_codec_set_drvdata(codec, ak4104);
- codec->control_data = spi;
- codec->reg_cache = ak4104->reg_cache;
- codec->reg_cache_size = AK4104_NUM_REGS;
+ codec->control_data = ak4104->control_data;
/* read all regs and fill the cache */
ret = ak4104_fill_cache(codec);
if (ret < 0) {
- dev_err(&spi->dev, "failed to fill register cache\n");
+ dev_err(codec->dev, "failed to fill register cache\n");
return ret;
}
@@ -238,93 +207,81 @@ static int ak4104_spi_probe(struct spi_device *spi)
* should contain 0x5b. Not a good way to verify the presence of
* the device, but there is no hardware ID register. */
if (ak4104_read_reg_cache(codec, AK4104_REG_RESERVED) !=
- AK4104_RESERVED_VAL) {
- ret = -ENODEV;
- goto error_free_codec;
- }
+ AK4104_RESERVED_VAL)
+ return -ENODEV;
/* set power-up and non-reset bits */
val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
val |= AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN;
ret = ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
if (ret < 0)
- goto error_free_codec;
+ return ret;
/* enable transmitter */
val = ak4104_read_reg_cache(codec, AK4104_REG_TX);
val |= AK4104_TX_TXE;
ret = ak4104_spi_write(codec, AK4104_REG_TX, val);
if (ret < 0)
- goto error_free_codec;
-
- ak4104_codec = codec;
- ret = snd_soc_register_dai(&ak4104_dai);
- if (ret < 0) {
- dev_err(&spi->dev, "failed to register DAI\n");
- goto error_free_codec;
- }
+ return ret;
- spi_set_drvdata(spi, ak4104);
- dev_info(&spi->dev, "SPI device initialized\n");
+ dev_info(codec->dev, "SPI device initialized\n");
return 0;
-
-error_free_codec:
- kfree(ak4104);
- ak4104_dai.dev = NULL;
- return ret;
}
-static int __devexit ak4104_spi_remove(struct spi_device *spi)
+static int ak4104_remove(struct snd_soc_codec *codec)
{
- int ret, val;
- struct ak4104_private *ak4104 = spi_get_drvdata(spi);
+ int val, ret;
- val = ak4104_read_reg_cache(&ak4104->codec, AK4104_REG_CONTROL1);
+ val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
if (val < 0)
return val;
/* clear power-up and non-reset bits */
val &= ~(AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN);
- ret = ak4104_spi_write(&ak4104->codec, AK4104_REG_CONTROL1, val);
- if (ret < 0)
- return ret;
+ ret = ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
- ak4104_codec = NULL;
- kfree(ak4104);
- return 0;
+ return ret;
}
-static int ak4104_probe(struct platform_device *pdev)
+static struct snd_soc_codec_driver soc_codec_device_ak4104 = {
+ .probe = ak4104_probe,
+ .remove = ak4104_remove,
+ .reg_cache_size = AK4104_NUM_REGS,
+ .reg_word_size = sizeof(u16),
+};
+
+static int ak4104_spi_probe(struct spi_device *spi)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = ak4104_codec;
+ struct ak4104_private *ak4104;
int ret;
- /* Connect the codec to the socdev. snd_soc_new_pcms() needs this. */
- socdev->card->codec = 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\n");
+ spi->bits_per_word = 8;
+ spi->mode = SPI_MODE_0;
+ ret = spi_setup(spi);
+ if (ret < 0)
return ret;
- }
- return 0;
+ ak4104 = kzalloc(sizeof(struct ak4104_private), GFP_KERNEL);
+ if (ak4104 == NULL)
+ return -ENOMEM;
+
+ ak4104->control_data = spi;
+ ak4104->control_type = SND_SOC_SPI;
+ spi_set_drvdata(spi, ak4104);
+
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_device_ak4104, &ak4104_dai, 1);
+ if (ret < 0)
+ kfree(ak4104);
+ return ret;
}
-static int ak4104_remove(struct platform_device *pdev)
+static int __devexit ak4104_spi_remove(struct spi_device *spi)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- snd_soc_free_pcms(socdev);
+ snd_soc_unregister_codec(&spi->dev);
+ kfree(spi_get_drvdata(spi));
return 0;
-};
-
-struct snd_soc_codec_device soc_codec_device_ak4104 = {
- .probe = ak4104_probe,
- .remove = ak4104_remove
-};
-EXPORT_SYMBOL_GPL(soc_codec_device_ak4104);
+}
static struct spi_driver ak4104_spi_driver = {
.driver = {
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-18 19:51:23 +0000