static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
#ifdef CONFIG_DEBUG_FS
-static struct dentry *debugfs_root;
+struct dentry *snd_soc_debugfs_root;
+EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
#endif
static DEFINE_MUTEX(client_mutex);
static LIST_HEAD(platform_list);
static LIST_HEAD(codec_list);
-static int snd_soc_register_card(struct snd_soc_card *card);
-static int snd_soc_unregister_card(struct snd_soc_card *card);
static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
/*
count += sprintf(buf, "%s registers\n", codec->name);
for (i = 0; i < codec->driver->reg_cache_size; i += step) {
- if (codec->driver->readable_register && !codec->driver->readable_register(i))
+ if (codec->readable_register && !codec->readable_register(codec, i))
continue;
count += sprintf(buf + count, "%2x: ", i);
start++;
if (strict_strtoul(start, 16, &value))
return -EINVAL;
+
+ /* Userspace has been fiddling around behind the kernel's back */
+ add_taint(TAINT_USER);
+
snd_soc_write(codec, reg, value);
return buf_size;
}
return;
}
+ debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
+ &codec->cache_sync);
+ debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
+ &codec->cache_only);
+
codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
codec->debugfs_codec_root,
codec, &codec_reg_fops);
static void soc_init_card_debugfs(struct snd_soc_card *card)
{
card->debugfs_card_root = debugfs_create_dir(card->name,
- debugfs_root);
+ snd_soc_debugfs_root);
if (!card->debugfs_card_root) {
dev_warn(card->dev,
"ASoC: Failed to create codec debugfs directory\n");
.pointer = soc_pcm_pointer,
};
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
/* powers down audio subsystem for suspend */
-static int soc_suspend(struct device *dev)
+int snd_soc_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = dev_get_drvdata(dev);
struct snd_soc_codec *codec;
int i;
}
if (card->suspend_pre)
- card->suspend_pre(pdev, PMSG_SUSPEND);
+ card->suspend_pre(card);
for (i = 0; i < card->num_rtd; i++) {
struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
}
if (card->suspend_post)
- card->suspend_post(pdev, PMSG_SUSPEND);
+ card->suspend_post(card);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_suspend);
/* deferred resume work, so resume can complete before we finished
* setting our codec back up, which can be very slow on I2C
{
struct snd_soc_card *card =
container_of(work, struct snd_soc_card, deferred_resume_work);
- struct platform_device *pdev = to_platform_device(card->dev);
struct snd_soc_codec *codec;
int i;
snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
if (card->resume_pre)
- card->resume_pre(pdev);
+ card->resume_pre(card);
/* resume AC97 DAIs */
for (i = 0; i < card->num_rtd; i++) {
}
if (card->resume_post)
- card->resume_post(pdev);
+ card->resume_post(card);
dev_dbg(card->dev, "resume work completed\n");
}
/* powers up audio subsystem after a suspend */
-static int soc_resume(struct device *dev)
+int snd_soc_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = dev_get_drvdata(dev);
int i;
/* AC97 devices might have other drivers hanging off them so
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_resume);
#else
-#define soc_suspend NULL
-#define soc_resume NULL
+#define snd_soc_suspend NULL
+#define snd_soc_resume NULL
#endif
static struct snd_soc_dai_ops null_dai_ops = {
/* Make sure all DAPM widgets are instantiated */
snd_soc_dapm_new_widgets(&codec->dapm);
- snd_soc_dapm_sync(&codec->dapm);
/* register the rtd device */
rtd->codec = codec;
goto out;
found:
- if (!try_module_get(codec->dev->driver->owner))
- return -ENODEV;
-
ret = soc_probe_codec(card, codec);
if (ret < 0)
return ret;
static void snd_soc_instantiate_card(struct snd_soc_card *card)
{
- struct platform_device *pdev = to_platform_device(card->dev);
struct snd_soc_codec *codec;
struct snd_soc_codec_conf *codec_conf;
enum snd_soc_compress_type compress_type;
list_for_each_entry(codec, &codec_list, list) {
if (codec->cache_init)
continue;
+ /* by default we don't override the compress_type */
+ compress_type = 0;
/* check to see if we need to override the compress_type */
for (i = 0; i < card->num_configs; ++i) {
codec_conf = &card->codec_conf[i];
break;
}
}
- if (i == card->num_configs) {
- /* no need to override the compress_type so
- * go ahead and do the standard thing */
- ret = snd_soc_init_codec_cache(codec, 0);
- if (ret < 0) {
- mutex_unlock(&card->mutex);
- return;
- }
- continue;
- }
- /* override the compress_type with the one supplied in
- * the machine driver */
ret = snd_soc_init_codec_cache(codec, compress_type);
if (ret < 0) {
mutex_unlock(&card->mutex);
/* initialise the sound card only once */
if (card->probe) {
- ret = card->probe(pdev);
+ ret = card->probe(card);
if (ret < 0)
goto card_probe_error;
}
card_probe_error:
if (card->remove)
- card->remove(pdev);
+ card->remove(card);
snd_card_free(card->snd_card);
struct snd_soc_card *card = platform_get_drvdata(pdev);
int ret = 0;
+ /*
+ * no card, so machine driver should be registering card
+ * we should not be here in that case so ret error
+ */
+ if (!card)
+ return -EINVAL;
+
/* Bodge while we unpick instantiation */
card->dev = &pdev->dev;
- INIT_LIST_HEAD(&card->dai_dev_list);
- INIT_LIST_HEAD(&card->codec_dev_list);
- INIT_LIST_HEAD(&card->platform_dev_list);
- INIT_LIST_HEAD(&card->widgets);
- INIT_LIST_HEAD(&card->paths);
- INIT_LIST_HEAD(&card->dapm_list);
-
- soc_init_card_debugfs(card);
+ snd_soc_initialize_card_lists(card);
ret = snd_soc_register_card(card);
if (ret != 0) {
return 0;
}
-/* removes a socdev */
-static int soc_remove(struct platform_device *pdev)
+static int soc_cleanup_card_resources(struct snd_soc_card *card)
{
- struct snd_soc_card *card = platform_get_drvdata(pdev);
int i;
- if (card->instantiated) {
+ /* make sure any delayed work runs */
+ for (i = 0; i < card->num_rtd; i++) {
+ struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
+ flush_delayed_work_sync(&rtd->delayed_work);
+ }
- /* make sure any delayed work runs */
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
- flush_delayed_work_sync(&rtd->delayed_work);
- }
+ /* remove auxiliary devices */
+ for (i = 0; i < card->num_aux_devs; i++)
+ soc_remove_aux_dev(card, i);
- /* remove auxiliary devices */
- for (i = 0; i < card->num_aux_devs; i++)
- soc_remove_aux_dev(card, i);
+ /* remove and free each DAI */
+ for (i = 0; i < card->num_rtd; i++)
+ soc_remove_dai_link(card, i);
- /* remove and free each DAI */
- for (i = 0; i < card->num_rtd; i++)
- soc_remove_dai_link(card, i);
+ soc_cleanup_card_debugfs(card);
- soc_cleanup_card_debugfs(card);
+ /* remove the card */
+ if (card->remove)
+ card->remove(card);
- /* remove the card */
- if (card->remove)
- card->remove(pdev);
+ kfree(card->rtd);
+ snd_card_free(card->snd_card);
+ return 0;
+
+}
+
+/* removes a socdev */
+static int soc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
- kfree(card->rtd);
- snd_card_free(card->snd_card);
- }
snd_soc_unregister_card(card);
return 0;
}
-static int soc_poweroff(struct device *dev)
+int snd_soc_poweroff(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = dev_get_drvdata(dev);
int i;
if (!card->instantiated)
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_poweroff);
-static const struct dev_pm_ops soc_pm_ops = {
- .suspend = soc_suspend,
- .resume = soc_resume,
- .poweroff = soc_poweroff,
+const struct dev_pm_ops snd_soc_pm_ops = {
+ .suspend = snd_soc_suspend,
+ .resume = snd_soc_resume,
+ .poweroff = snd_soc_poweroff,
};
/* ASoC platform driver */
.driver = {
.name = "soc-audio",
.owner = THIS_MODULE,
- .pm = &soc_pm_ops,
+ .pm = &snd_soc_pm_ops,
},
.probe = soc_probe,
.remove = soc_remove,
*
* Boolean function indiciating if a CODEC register is volatile.
*/
-int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg)
+int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
+ unsigned int reg)
{
- if (codec->driver->volatile_register)
- return codec->driver->volatile_register(reg);
+ if (codec->volatile_register)
+ return codec->volatile_register(codec, reg);
else
return 0;
}
*
* Writes new register value.
*
- * Returns 1 for change else 0.
+ * Returns 1 for change, 0 for no change, or negative error code.
*/
int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
unsigned int mask, unsigned int value)
{
int change;
unsigned int old, new;
+ int ret;
- old = snd_soc_read(codec, reg);
+ ret = snd_soc_read(codec, reg);
+ if (ret < 0)
+ return ret;
+
+ old = ret;
new = (old & ~mask) | value;
change = old != new;
- if (change)
- snd_soc_write(codec, reg, new);
+ if (change) {
+ ret = snd_soc_write(codec, reg, new);
+ if (ret < 0)
+ return ret;
+ }
return change;
}
*
* @card: Card to register
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_register_card(struct snd_soc_card *card)
+int snd_soc_register_card(struct snd_soc_card *card)
{
int i;
if (!card->name || !card->dev)
return -EINVAL;
+ soc_init_card_debugfs(card);
+
card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) *
(card->num_links + card->num_aux_devs),
GFP_KERNEL);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_register_card);
/**
* snd_soc_unregister_card - Unregister a card with the ASoC core
*
* @card: Card to unregister
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_unregister_card(struct snd_soc_card *card)
+int snd_soc_unregister_card(struct snd_soc_card *card)
{
+ if (card->instantiated)
+ soc_cleanup_card_resources(card);
mutex_lock(&client_mutex);
list_del(&card->list);
mutex_unlock(&client_mutex);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
/*
* Simplify DAI link configuration by removing ".-1" from device names
codec->write = codec_drv->write;
codec->read = codec_drv->read;
+ codec->volatile_register = codec_drv->volatile_register;
+ codec->readable_register = codec_drv->readable_register;
codec->dapm.bias_level = SND_SOC_BIAS_OFF;
codec->dapm.dev = dev;
codec->dapm.codec = codec;
+ codec->dapm.seq_notifier = codec_drv->seq_notifier;
codec->dev = dev;
codec->driver = codec_drv;
codec->num_dai = num_dai;
/* allocate CODEC register cache */
if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
+ codec->reg_size = reg_size;
/* it is necessary to make a copy of the default register cache
* because in the case of using a compression type that requires
* the default register cache to be marked as __devinitconst the
* kernel might have freed the array by the time we initialize
* the cache.
*/
- codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
- reg_size, GFP_KERNEL);
- if (!codec->reg_def_copy) {
- ret = -ENOMEM;
- goto fail;
+ if (codec_drv->reg_cache_default) {
+ codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
+ reg_size, GFP_KERNEL);
+ if (!codec->reg_def_copy) {
+ ret = -ENOMEM;
+ goto fail;
+ }
}
}
+ if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
+ if (!codec->volatile_register)
+ codec->volatile_register = snd_soc_default_volatile_register;
+ if (!codec->readable_register)
+ codec->readable_register = snd_soc_default_readable_register;
+ }
+
for (i = 0; i < num_dai; i++) {
fixup_codec_formats(&dai_drv[i].playback);
fixup_codec_formats(&dai_drv[i].capture);
static int __init snd_soc_init(void)
{
#ifdef CONFIG_DEBUG_FS
- debugfs_root = debugfs_create_dir("asoc", NULL);
- if (IS_ERR(debugfs_root) || !debugfs_root) {
+ snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
+ if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
printk(KERN_WARNING
"ASoC: Failed to create debugfs directory\n");
- debugfs_root = NULL;
+ snd_soc_debugfs_root = NULL;
}
- if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL,
+ if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
&codec_list_fops))
pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
- if (!debugfs_create_file("dais", 0444, debugfs_root, NULL,
+ if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
&dai_list_fops))
pr_warn("ASoC: Failed to create DAI list debugfs file\n");
- if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL,
+ if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
&platform_list_fops))
pr_warn("ASoC: Failed to create platform list debugfs file\n");
#endif
static void __exit snd_soc_exit(void)
{
#ifdef CONFIG_DEBUG_FS
- debugfs_remove_recursive(debugfs_root);
+ debugfs_remove_recursive(snd_soc_debugfs_root);
#endif
platform_driver_unregister(&soc_driver);
}
projects / firefly-linux-kernel-4.4.55.git / commitdiff