#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/asoc.h>
+
#define NAME_SIZE 32
static DEFINE_MUTEX(pcm_mutex);
static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
{
- codec->debugfs_codec_root = debugfs_create_dir(codec->name ,
- debugfs_root);
+ struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
+
+ codec->debugfs_codec_root = debugfs_create_dir(codec->name,
+ debugfs_card_root);
if (!codec->debugfs_codec_root) {
printk(KERN_WARNING
"ASoC: Failed to create codec debugfs directory\n");
printk(KERN_WARNING
"ASoC: Failed to create codec register debugfs file\n");
- codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
- codec->debugfs_codec_root,
- &codec->dapm.pop_time);
- if (!codec->debugfs_pop_time)
- printk(KERN_WARNING
- "Failed to create pop time debugfs file\n");
-
codec->dapm.debugfs_dapm = debugfs_create_dir("dapm",
codec->debugfs_codec_root);
if (!codec->dapm.debugfs_dapm)
.llseek = default_llseek,/* read accesses f_pos */
};
+static void soc_init_card_debugfs(struct snd_soc_card *card)
+{
+ card->debugfs_card_root = debugfs_create_dir(card->name,
+ debugfs_root);
+ if (!card->debugfs_card_root) {
+ dev_warn(card->dev,
+ "ASoC: Failed to create codec debugfs directory\n");
+ return;
+ }
+
+ card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
+ card->debugfs_card_root,
+ &card->pop_time);
+ if (!card->debugfs_pop_time)
+ dev_warn(card->dev,
+ "Failed to create pop time debugfs file\n");
+}
+
+static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
+{
+ debugfs_remove_recursive(card->debugfs_card_root);
+}
+
#else
static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
{
}
+
+static inline void soc_init_card_debugfs(struct snd_soc_card *card)
+{
+}
+
+static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
+{
+}
#endif
#ifdef CONFIG_SND_SOC_AC97_BUS
}
}
- /* Check that the codec and cpu DAI's are compatible */
+ /* Check that the codec and cpu DAIs are compatible */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
runtime->hw.rate_min =
max(codec_dai_drv->playback.rate_min,
}
/*
- * Free's resources allocated by hw_params, can be called multiple times
+ * Frees resources allocated by hw_params, can be called multiple times
*/
static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
{
if (platform->driver->ops->hw_free)
platform->driver->ops->hw_free(substream);
- /* now free hw params for the DAI's */
+ /* now free hw params for the DAIs */
if (codec_dai->driver->ops->hw_free)
codec_dai->driver->ops->hw_free(substream, codec_dai);
{
struct platform_device *pdev = to_platform_device(dev);
struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
int i;
/* If the initialization of this soc device failed, there is no codec
/* we're going to block userspace touching us until resume completes */
snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
- /* mute any active DAC's */
+ /* mute any active DACs */
for (i = 0; i < card->num_rtd; i++) {
struct snd_soc_dai *dai = card->rtd[i].codec_dai;
struct snd_soc_dai_driver *drv = dai->driver;
}
/* suspend all CODECs */
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_codec *codec = card->rtd[i].codec;
+ list_for_each_entry(codec, &card->codec_dev_list, card_list) {
/* If there are paths active then the CODEC will be held with
* bias _ON and should not be suspended. */
if (!codec->suspended && codec->driver->suspend) {
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;
/* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
cpu_dai->driver->resume(cpu_dai);
}
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_codec *codec = card->rtd[i].codec;
+ list_for_each_entry(codec, &card->codec_dev_list, card_list) {
/* If the CODEC was idle over suspend then it will have been
* left with bias OFF or STANDBY and suspended so we must now
* resume. Otherwise the suspend was suppressed.
}
}
+static void soc_set_name_prefix(struct snd_soc_card *card,
+ struct snd_soc_codec *codec)
+{
+ int i;
+
+ if (card->prefix_map == NULL)
+ return;
+
+ for (i = 0; i < card->num_prefixes; i++) {
+ struct snd_soc_prefix_map *map = &card->prefix_map[i];
+ if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
+ codec->name_prefix = map->name_prefix;
+ break;
+ }
+ }
+}
+
static void rtd_release(struct device *dev) {}
static int soc_probe_dai_link(struct snd_soc_card *card, int num)
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
+ const char *temp;
int ret;
dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num);
/* probe the CODEC */
if (!codec->probed) {
+ codec->dapm.card = card;
+ soc_set_name_prefix(card, codec);
if (codec->driver->probe) {
ret = codec->driver->probe(codec);
if (ret < 0) {
/* now that all clients have probed, initialise the DAI link */
if (dai_link->init) {
+ /* machine controls, routes and widgets are not prefixed */
+ temp = rtd->codec->name_prefix;
+ rtd->codec->name_prefix = NULL;
ret = dai_link->init(rtd);
if (ret < 0) {
printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name);
return ret;
}
+ rtd->codec->name_prefix = temp;
}
/* Make sure all DAPM widgets are instantiated */
}
#endif
+static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
+{
+ struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
+ struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
+ struct snd_soc_codec *codec;
+ const char *temp;
+ int ret = -ENODEV;
+
+ /* find CODEC from registered CODECs*/
+ list_for_each_entry(codec, &codec_list, list) {
+ if (!strcmp(codec->name, aux_dev->codec_name)) {
+ if (codec->probed) {
+ dev_err(codec->dev,
+ "asoc: codec already probed");
+ ret = -EBUSY;
+ goto out;
+ }
+ goto found;
+ }
+ }
+ /* codec not found */
+ dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
+ goto out;
+
+found:
+ if (!try_module_get(codec->dev->driver->owner))
+ return -ENODEV;
+
+ codec->card = card;
+ codec->dapm.card = card;
+
+ soc_set_name_prefix(card, codec);
+ if (codec->driver->probe) {
+ ret = codec->driver->probe(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "asoc: failed to probe CODEC");
+ return ret;
+ }
+ }
+
+ soc_init_codec_debugfs(codec);
+
+ /* mark codec as probed and add to card codec list */
+ codec->probed = 1;
+ list_add(&codec->card_list, &card->codec_dev_list);
+
+ /* now that all clients have probed, initialise the DAI link */
+ if (aux_dev->init) {
+ /* machine controls, routes and widgets are not prefixed */
+ temp = codec->name_prefix;
+ codec->name_prefix = NULL;
+ ret = aux_dev->init(&codec->dapm);
+ if (ret < 0) {
+ dev_err(codec->dev,
+ "asoc: failed to init %s\n", aux_dev->name);
+ return ret;
+ }
+ codec->name_prefix = temp;
+ }
+
+ /* 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;
+ rtd->card = card;
+ rtd->dev.parent = card->dev;
+ rtd->dev.release = rtd_release;
+ rtd->dev.init_name = aux_dev->name;
+ ret = device_register(&rtd->dev);
+ if (ret < 0) {
+ dev_err(codec->dev,
+ "asoc: failed to register aux runtime device %d\n",
+ ret);
+ return ret;
+ }
+ rtd->dev_registered = 1;
+
+ /* add DAPM sysfs entries for this codec */
+ ret = snd_soc_dapm_sys_add(&rtd->dev);
+ if (ret < 0)
+ dev_err(codec->dev,
+ "asoc: failed to add codec dapm sysfs entries\n");
+
+ /* add codec sysfs entries */
+ ret = device_create_file(&rtd->dev, &dev_attr_codec_reg);
+ if (ret < 0)
+ dev_err(codec->dev, "asoc: failed to add codec sysfs files\n");
+
+out:
+ return ret;
+}
+
+static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
+{
+ struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
+ struct snd_soc_codec *codec = rtd->codec;
+ int err;
+
+ /* unregister the rtd device */
+ if (rtd->dev_registered) {
+ device_unregister(&rtd->dev);
+ rtd->dev_registered = 0;
+ }
+
+ /* remove the CODEC */
+ if (codec && codec->probed) {
+ if (codec->driver->remove) {
+ err = codec->driver->remove(codec);
+ if (err < 0)
+ dev_err(codec->dev,
+ "asoc: failed to remove %s\n",
+ codec->name);
+ }
+
+ /* Make sure all DAPM widgets are freed */
+ snd_soc_dapm_free(&codec->dapm);
+
+ soc_cleanup_codec_debugfs(codec);
+ device_remove_file(&rtd->dev, &dev_attr_codec_reg);
+ codec->probed = 0;
+ list_del(&codec->card_list);
+ module_put(codec->dev->driver->owner);
+ }
+}
+
static void snd_soc_instantiate_card(struct snd_soc_card *card)
{
struct platform_device *pdev = to_platform_device(card->dev);
}
}
+ for (i = 0; i < card->num_aux_devs; i++) {
+ ret = soc_probe_aux_dev(card, i);
+ if (ret < 0) {
+ pr_err("asoc: failed to add auxiliary devices %s: %d\n",
+ card->name, ret);
+ goto probe_aux_dev_err;
+ }
+ }
+
snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
"%s", card->name);
snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
mutex_unlock(&card->mutex);
return;
+probe_aux_dev_err:
+ for (i = 0; i < card->num_aux_devs; i++)
+ soc_remove_aux_dev(card, i);
+
probe_dai_err:
for (i = 0; i < card->num_links; i++)
soc_remove_dai_link(card, i);
INIT_LIST_HEAD(&card->codec_dev_list);
INIT_LIST_HEAD(&card->platform_dev_list);
+ soc_init_card_debugfs(card);
+
ret = snd_soc_register_card(card);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to register card\n");
run_delayed_work(&rtd->delayed_work);
}
+ /* 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);
+ soc_cleanup_card_debugfs(card);
+
/* remove the card */
if (card->remove)
card->remove(pdev);
{
unsigned int ret;
- ret = codec->driver->read(codec, reg);
+ ret = codec->read(codec, reg);
dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
+ trace_snd_soc_reg_read(codec, reg, ret);
return ret;
}
unsigned int reg, unsigned int val)
{
dev_dbg(codec->dev, "write %x = %x\n", reg, val);
- return codec->driver->write(codec, reg, val);
+ trace_snd_soc_reg_write(codec, reg, val);
+ return codec->write(codec, reg, val);
}
EXPORT_SYMBOL_GPL(snd_soc_write);
const struct snd_kcontrol_new *controls, int num_controls)
{
struct snd_card *card = codec->card->snd_card;
+ char prefixed_name[44], *name;
int err, i;
for (i = 0; i < num_controls; i++) {
const struct snd_kcontrol_new *control = &controls[i];
- err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL));
+ if (codec->name_prefix) {
+ snprintf(prefixed_name, sizeof(prefixed_name), "%s %s",
+ codec->name_prefix, control->name);
+ name = prefixed_name;
+ } else {
+ name = control->name;
+ }
+ err = snd_ctl_add(card, snd_soc_cnew(control, codec, name));
if (err < 0) {
dev_err(codec->dev, "%s: Failed to add %s: %d\n",
- codec->name, control->name, err);
+ codec->name, name, err);
return err;
}
}
if (!card->name || !card->dev)
return -EINVAL;
- card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links,
- GFP_KERNEL);
+ card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) *
+ (card->num_links + card->num_aux_devs),
+ GFP_KERNEL);
if (card->rtd == NULL)
return -ENOMEM;
+ card->rtd_aux = &card->rtd[card->num_links];
for (i = 0; i < card->num_links; i++)
card->rtd[i].dai_link = &card->dai_link[i];
return -ENOMEM;
}
+ if (codec_drv->compress_type)
+ codec->compress_type = codec_drv->compress_type;
+ else
+ codec->compress_type = SND_SOC_FLAT_COMPRESSION;
+
INIT_LIST_HEAD(&codec->dapm.widgets);
INIT_LIST_HEAD(&codec->dapm.paths);
+ codec->write = codec_drv->write;
+ codec->read = codec_drv->read;
codec->dapm.bias_level = SND_SOC_BIAS_OFF;
codec->dapm.dev = dev;
codec->dapm.codec = codec;
+ codec->dev = dev;
+ codec->driver = codec_drv;
+ codec->num_dai = num_dai;
+ mutex_init(&codec->mutex);
/* allocate CODEC register cache */
if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
-
- if (codec_drv->reg_cache_default)
- codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
- codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL);
- else
- codec->reg_cache = kzalloc(codec_drv->reg_cache_size *
- codec_drv->reg_word_size, GFP_KERNEL);
-
- if (codec->reg_cache == NULL) {
- kfree(codec->name);
- kfree(codec);
- return -ENOMEM;
+ ret = snd_soc_cache_init(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cache compression type: %d\n",
+ ret);
+ goto error_cache;
}
}
- codec->dev = dev;
- codec->driver = codec_drv;
- codec->num_dai = num_dai;
- mutex_init(&codec->mutex);
-
for (i = 0; i < num_dai; i++) {
fixup_codec_formats(&dai_drv[i].playback);
fixup_codec_formats(&dai_drv[i].capture);
if (num_dai) {
ret = snd_soc_register_dais(dev, dai_drv, num_dai);
if (ret < 0)
- goto error;
+ goto error_dais;
}
mutex_lock(&client_mutex);
pr_debug("Registered codec '%s'\n", codec->name);
return 0;
-error:
- if (codec->reg_cache)
- kfree(codec->reg_cache);
+error_dais:
+ snd_soc_cache_exit(codec);
+error_cache:
kfree(codec->name);
kfree(codec);
return ret;
pr_debug("Unregistered codec '%s'\n", codec->name);
- if (codec->reg_cache)
- kfree(codec->reg_cache);
+ snd_soc_cache_exit(codec);
kfree(codec->name);
kfree(codec);
}
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