struct cx20442_priv {
- struct snd_soc_codec codec;
+ enum snd_soc_control_type control_type;
+ void *control_data;
u8 reg_cache[1];
};
{
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];
static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
+ struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec);
u8 *reg_cache = codec->reg_cache;
int vls, vsp, old, len;
char buf[18];
- if (reg >= codec->reg_cache_size)
+ if (reg >= codec->driver->reg_cache_size)
return -EINVAL;
/* hw_write and control_data pointers required for talking to the modem
* are expected to be set by the line discipline initialization code */
- if (!codec->hw_write || !codec->control_data)
+ if (!codec->hw_write || !cx20442->control_data)
return -EIO;
old = reg_cache[reg];
return -ENOMEM;
dev_dbg(codec->dev, "%s: %s\n", __func__, buf);
- if (codec->hw_write(codec->control_data, buf, len) != len)
+ if (codec->hw_write(cx20442->control_data, buf, len) != len)
return -EIO;
return 0;
}
-/* Moved up here as line discipline referres it during initialization */
-static struct snd_soc_codec *cx20442_codec;
-
-
/*
* Line discpline related code
*
/* Line discipline .open() */
static int v253_open(struct tty_struct *tty)
{
- struct snd_soc_codec *codec = cx20442_codec;
int ret, len = strlen(v253_init);
/* Doesn't make sense without write callback */
if (!tty->ops->write)
return -EINVAL;
- /* Pass the codec structure address for use by other ldisc callbacks */
- tty->disc_data = codec;
+ /* Won't work if no codec pointer has been passed by a card driver */
+ if (!tty->disc_data)
+ return -ENODEV;
if (tty->ops->write(tty, v253_init, len) != len) {
ret = -EIO;
static void v253_close(struct tty_struct *tty)
{
struct snd_soc_codec *codec = tty->disc_data;
+ struct cx20442_priv *cx20442;
tty->disc_data = NULL;
if (!codec)
return;
+ cx20442 = snd_soc_codec_get_drvdata(codec);
+
/* Prevent the codec driver from further accessing the modem */
codec->hw_write = NULL;
- codec->control_data = NULL;
+ cx20442->control_data = NULL;
codec->pop_time = 0;
}
const unsigned char *cp, char *fp, int count)
{
struct snd_soc_codec *codec = tty->disc_data;
+ struct cx20442_priv *cx20442;
if (!codec)
return;
- if (!codec->control_data) {
+ cx20442 = snd_soc_codec_get_drvdata(codec);
+
+ if (!cx20442->control_data) {
/* First modem response, complete setup procedure */
/* Set up codec driver access to modem controls */
- codec->control_data = tty;
+ cx20442->control_data = tty;
codec->hw_write = (hw_write_t)tty->ops->write;
codec->pop_time = 1;
}
* Codec DAI
*/
-struct snd_soc_dai cx20442_dai = {
- .name = "CX20442",
+static struct snd_soc_dai_driver cx20442_dai = {
+ .name = "cx20442-voice",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
};
-EXPORT_SYMBOL_GPL(cx20442_dai);
-static int cx20442_codec_probe(struct platform_device *pdev)
+static int cx20442_codec_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- int ret;
-
- if (!cx20442_codec) {
- dev_err(&pdev->dev, "cx20442 not yet discovered\n");
- return -ENODEV;
- }
- codec = cx20442_codec;
-
- socdev->card->codec = codec;
+ struct cx20442_priv *cx20442;
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to create pcms\n");
- goto pcm_err;
- }
+ cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL);
+ if (cx20442 == NULL)
+ return -ENOMEM;
+ snd_soc_codec_set_drvdata(codec, cx20442);
cx20442_add_widgets(codec);
-pcm_err:
- return ret;
+ cx20442->control_data = NULL;
+ codec->hw_write = NULL;
+ codec->pop_time = 0;
+
+ return 0;
}
/* power down chip */
-static int cx20442_codec_remove(struct platform_device *pdev)
+static int cx20442_codec_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
+ if (cx20442->control_data) {
+ struct tty_struct *tty = cx20442->control_data;
+ tty_hangup(tty);
+ }
+ kfree(cx20442);
return 0;
}
-struct snd_soc_codec_device cx20442_codec_dev = {
+static struct snd_soc_codec_driver cx20442_codec_dev = {
.probe = cx20442_codec_probe,
.remove = cx20442_codec_remove,
+ .reg_cache_size = 1,
+ .reg_word_size = sizeof(u8),
+ .read = cx20442_read_reg_cache,
+ .write = cx20442_write,
};
-EXPORT_SYMBOL_GPL(cx20442_codec_dev);
-
-static int cx20442_register(struct cx20442_priv *cx20442)
-{
- struct snd_soc_codec *codec = &cx20442->codec;
- int ret;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->name = "CX20442";
- codec->owner = THIS_MODULE;
- snd_soc_codec_set_drvdata(codec, cx20442);
-
- codec->dai = &cx20442_dai;
- codec->num_dai = 1;
-
- codec->reg_cache = &cx20442->reg_cache;
- codec->reg_cache_size = ARRAY_SIZE(cx20442->reg_cache);
- codec->read = cx20442_read_reg_cache;
- codec->write = cx20442_write;
-
- codec->bias_level = SND_SOC_BIAS_OFF;
-
- cx20442_dai.dev = codec->dev;
-
- cx20442_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_dai(&cx20442_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:
- cx20442_codec = NULL;
- kfree(cx20442);
- return ret;
-}
-
-static void cx20442_unregister(struct cx20442_priv *cx20442)
-{
- snd_soc_unregister_dai(&cx20442_dai);
- snd_soc_unregister_codec(&cx20442->codec);
-
- cx20442_codec = NULL;
- kfree(cx20442);
-}
static int cx20442_platform_probe(struct platform_device *pdev)
{
- struct cx20442_priv *cx20442;
- struct snd_soc_codec *codec;
-
- cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL);
- if (cx20442 == NULL)
- return -ENOMEM;
-
- codec = &cx20442->codec;
-
- codec->control_data = NULL;
- codec->hw_write = NULL;
- codec->pop_time = 0;
-
- codec->dev = &pdev->dev;
- platform_set_drvdata(pdev, cx20442);
-
- return cx20442_register(cx20442);
+ return snd_soc_register_codec(&pdev->dev,
+ &cx20442_codec_dev, &cx20442_dai, 1);
}
static int __exit cx20442_platform_remove(struct platform_device *pdev)
{
- struct cx20442_priv *cx20442 = platform_get_drvdata(pdev);
-
- cx20442_unregister(cx20442);
+ snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver cx20442_platform_driver = {
.driver = {
- .name = "cx20442",
+ .name = "cx20442-codec",
.owner = THIS_MODULE,
},
.probe = cx20442_platform_probe,
MODULE_DESCRIPTION("ASoC CX20442-11 voice modem codec driver");
MODULE_AUTHOR("Janusz Krzysztofik");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:cx20442");
+MODULE_ALIAS("platform:cx20442-codec");
projects / mv-sheeva.git / blobdiff