struct device *dev = kobj_to_dev(kobj);
struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
+ if (!rtd)
+ return 0;
+
if (attr == &dev_attr_pmdown_time.attr)
return attr->mode; /* always visible */
return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */
#endif
+/*
+ * This is glue code between snd_pcm_lib_ioctl() and
+ * snd_soc_component_driver :: ioctl
+ */
+int snd_soc_pcm_lib_ioctl(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg)
+{
+ return snd_pcm_lib_ioctl(substream, cmd, arg);
+}
+EXPORT_SYMBOL_GPL(snd_soc_pcm_lib_ioctl);
+
static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_component *component)
{
struct snd_soc_rtdcom_list *rtdcom;
+ struct snd_soc_component *comp;
- for_each_rtdcom(rtd, rtdcom) {
+ for_each_rtd_components(rtd, rtdcom, comp) {
/* already connected */
- if (rtdcom->component == component)
+ if (comp == component)
return 0;
}
- rtdcom = kmalloc(sizeof(*rtdcom), GFP_KERNEL);
+ /*
+ * created rtdcom here will be freed when rtd->dev was freed.
+ * see
+ * soc_free_pcm_runtime() :: device_unregister(rtd->dev)
+ */
+ rtdcom = devm_kzalloc(rtd->dev, sizeof(*rtdcom), GFP_KERNEL);
if (!rtdcom)
return -ENOMEM;
rtdcom->component = component;
INIT_LIST_HEAD(&rtdcom->list);
+ /*
+ * When rtd was freed, created rtdcom here will be
+ * also freed.
+ * And we don't need to call list_del(&rtdcom->list)
+ * when freed, because rtd is also freed.
+ */
list_add_tail(&rtdcom->list, &rtd->component_list);
return 0;
}
-static void snd_soc_rtdcom_del_all(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_rtdcom_list *rtdcom1, *rtdcom2;
-
- for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2)
- kfree(rtdcom1);
-
- INIT_LIST_HEAD(&rtd->component_list);
-}
-
struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
const char *driver_name)
{
struct snd_soc_rtdcom_list *rtdcom;
+ struct snd_soc_component *component;
if (!driver_name)
return NULL;
* But, if many components which have same driver name are connected
* to 1 rtd, this function will return 1st found component.
*/
- for_each_rtdcom(rtd, rtdcom) {
- const char *component_name = rtdcom->component->driver->name;
+ for_each_rtd_components(rtd, rtdcom, component) {
+ const char *component_name = component->driver->name;
if (!component_name)
continue;
}
EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup);
+static struct snd_soc_component
+*snd_soc_lookup_component_nolocked(struct device *dev, const char *driver_name)
+{
+ struct snd_soc_component *component;
+ struct snd_soc_component *found_component;
+
+ found_component = NULL;
+ for_each_component(component) {
+ if ((dev == component->dev) &&
+ (!driver_name ||
+ (driver_name == component->driver->name) ||
+ (strcmp(component->driver->name, driver_name) == 0))) {
+ found_component = component;
+ break;
+ }
+ }
+
+ return found_component;
+}
+
+struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
+ const char *driver_name)
+{
+ struct snd_soc_component *component;
+
+ mutex_lock(&client_mutex);
+ component = snd_soc_lookup_component_nolocked(dev, driver_name);
+ mutex_unlock(&client_mutex);
+
+ return component;
+}
+EXPORT_SYMBOL_GPL(snd_soc_lookup_component);
+
struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
const char *dai_link, int stream)
{
static const struct snd_soc_ops null_snd_soc_ops;
+static void soc_release_rtd_dev(struct device *dev)
+{
+ /* "dev" means "rtd->dev" */
+ kfree(dev);
+}
+
+static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd)
+{
+ if (!rtd)
+ return;
+
+ list_del(&rtd->list);
+
+ flush_delayed_work(&rtd->delayed_work);
+ snd_soc_pcm_component_free(rtd);
+
+ /*
+ * we don't need to call kfree() for rtd->dev
+ * see
+ * soc_release_rtd_dev()
+ *
+ * We don't need rtd->dev NULL check, because
+ * it is alloced *before* rtd.
+ * see
+ * soc_new_pcm_runtime()
+ */
+ device_unregister(rtd->dev);
+}
+
static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
{
struct snd_soc_pcm_runtime *rtd;
+ struct device *dev;
+ int ret;
- rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL);
- if (!rtd)
+ /*
+ * for rtd->dev
+ */
+ dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+ if (!dev)
return NULL;
- INIT_LIST_HEAD(&rtd->component_list);
- rtd->card = card;
- rtd->dai_link = dai_link;
- if (!rtd->dai_link->ops)
- rtd->dai_link->ops = &null_snd_soc_ops;
+ dev->parent = card->dev;
+ dev->release = soc_release_rtd_dev;
+ dev->groups = soc_dev_attr_groups;
- rtd->codec_dais = kcalloc(dai_link->num_codecs,
- sizeof(struct snd_soc_dai *),
- GFP_KERNEL);
- if (!rtd->codec_dais) {
- kfree(rtd);
+ dev_set_name(dev, "%s", dai_link->name);
+
+ ret = device_register(dev);
+ if (ret < 0) {
+ put_device(dev); /* soc_release_rtd_dev */
return NULL;
}
- return rtd;
-}
+ /*
+ * for rtd
+ */
+ rtd = devm_kzalloc(dev, sizeof(*rtd), GFP_KERNEL);
+ if (!rtd)
+ goto free_rtd;
-static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd)
-{
- kfree(rtd->codec_dais);
- snd_soc_rtdcom_del_all(rtd);
- kfree(rtd);
-}
+ rtd->dev = dev;
+ dev_set_drvdata(dev, rtd);
+
+ /*
+ * for rtd->codec_dais
+ */
+ rtd->codec_dais = devm_kcalloc(dev, dai_link->num_codecs,
+ sizeof(struct snd_soc_dai *),
+ GFP_KERNEL);
+ if (!rtd->codec_dais)
+ goto free_rtd;
+
+ /*
+ * rtd remaining settings
+ */
+ INIT_LIST_HEAD(&rtd->component_list);
+ INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
+ INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
+ INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
+ INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
+
+ rtd->card = card;
+ rtd->dai_link = dai_link;
+ if (!rtd->dai_link->ops)
+ rtd->dai_link->ops = &null_snd_soc_ops;
-static void soc_add_pcm_runtime(struct snd_soc_card *card,
- struct snd_soc_pcm_runtime *rtd)
-{
/* see for_each_card_rtds */
list_add_tail(&rtd->list, &card->rtd_list);
rtd->num = card->num_rtd;
card->num_rtd++;
-}
-
-static void soc_remove_pcm_runtimes(struct snd_soc_card *card)
-{
- struct snd_soc_pcm_runtime *rtd, *_rtd;
- for_each_card_rtds_safe(card, rtd, _rtd) {
- list_del(&rtd->list);
- soc_free_pcm_runtime(rtd);
- }
+ return rtd;
- card->num_rtd = 0;
+free_rtd:
+ soc_free_pcm_runtime(rtd);
+ return NULL;
}
struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(snd_soc_find_dai_link);
-static bool soc_is_dai_link_bound(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
+static int soc_dai_link_sanity_check(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link)
{
- struct snd_soc_pcm_runtime *rtd;
+ int i;
+ struct snd_soc_dai_link_component *codec, *platform;
- for_each_card_rtds(card, rtd) {
- if (rtd->dai_link == dai_link)
- return true;
+ for_each_link_codecs(link, i, codec) {
+ /*
+ * Codec must be specified by 1 of name or OF node,
+ * not both or neither.
+ */
+ if (!!codec->name == !!codec->of_node) {
+ dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
+
+ /* Codec DAI name must be specified */
+ if (!codec->dai_name) {
+ dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
+
+ /*
+ * Defer card registration if codec component is not added to
+ * component list.
+ */
+ if (!soc_find_component(codec))
+ return -EPROBE_DEFER;
+ }
+
+ for_each_link_platforms(link, i, platform) {
+ /*
+ * Platform may be specified by either name or OF node, but it
+ * can be left unspecified, then no components will be inserted
+ * in the rtdcom list
+ */
+ if (!!platform->name == !!platform->of_node) {
+ dev_err(card->dev,
+ "ASoC: Neither/both platform name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
+
+ /*
+ * Defer card registration if platform component is not added to
+ * component list.
+ */
+ if (!soc_find_component(platform))
+ return -EPROBE_DEFER;
+ }
+
+ /* FIXME */
+ if (link->num_cpus > 1) {
+ dev_err(card->dev,
+ "ASoC: multi cpu is not yet supported %s\n",
+ link->name);
+ return -EINVAL;
+ }
+
+ /*
+ * CPU device may be specified by either name or OF node, but
+ * can be left unspecified, and will be matched based on DAI
+ * name alone..
+ */
+ if (link->cpus->name && link->cpus->of_node) {
+ dev_err(card->dev,
+ "ASoC: Neither/both cpu name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
+
+ /*
+ * Defer card registration if cpu dai component is not added to
+ * component list.
+ */
+ if ((link->cpus->of_node || link->cpus->name) &&
+ !soc_find_component(link->cpus))
+ return -EPROBE_DEFER;
+
+ /*
+ * At least one of CPU DAI name or CPU device name/node must be
+ * specified
+ */
+ if (!link->cpus->dai_name &&
+ !(link->cpus->name || link->cpus->of_node)) {
+ dev_err(card->dev,
+ "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
}
- return false;
+ return 0;
+}
+
+/**
+ * snd_soc_remove_dai_link - Remove a DAI link from the list
+ * @card: The ASoC card that owns the link
+ * @dai_link: The DAI link to remove
+ *
+ * This function removes a DAI link from the ASoC card's link list.
+ *
+ * For DAI links previously added by topology, topology should
+ * remove them by using the dobj embedded in the link.
+ */
+void snd_soc_remove_dai_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *dai_link)
+{
+ struct snd_soc_pcm_runtime *rtd;
+
+ lockdep_assert_held(&client_mutex);
+
+ /*
+ * Notify the machine driver for extra destruction
+ */
+ if (card->remove_dai_link)
+ card->remove_dai_link(card, dai_link);
+
+ list_del(&dai_link->list);
+
+ rtd = snd_soc_get_pcm_runtime(card, dai_link->name);
+ if (rtd)
+ soc_free_pcm_runtime(rtd);
}
+EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link);
-static int soc_bind_dai_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
+/**
+ * snd_soc_add_dai_link - Add a DAI link dynamically
+ * @card: The ASoC card to which the DAI link is added
+ * @dai_link: The new DAI link to add
+ *
+ * This function adds a DAI link to the ASoC card's link list.
+ *
+ * Note: Topology can use this API to add DAI links when probing the
+ * topology component. And machine drivers can still define static
+ * DAI links in dai_link array.
+ */
+int snd_soc_add_dai_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *dai_link)
{
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai_link_component *codec, *platform;
struct snd_soc_component *component;
- int i;
+ int i, ret;
+
+ lockdep_assert_held(&client_mutex);
+
+ /*
+ * Notify the machine driver for extra initialization
+ */
+ if (card->add_dai_link)
+ card->add_dai_link(card, dai_link);
if (dai_link->ignore)
return 0;
dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name);
- if (soc_is_dai_link_bound(card, dai_link)) {
- dev_dbg(card->dev, "ASoC: dai link %s already bound\n",
- dai_link->name);
- return 0;
- }
+ ret = soc_dai_link_sanity_check(card, dai_link);
+ if (ret < 0)
+ return ret;
rtd = soc_new_pcm_runtime(card, dai_link);
if (!rtd)
}
}
- soc_add_pcm_runtime(card, rtd);
+ /* see for_each_card_links */
+ list_add_tail(&dai_link->list, &card->dai_link_list);
+
return 0;
_err_defer:
soc_free_pcm_runtime(rtd);
return -EPROBE_DEFER;
}
+EXPORT_SYMBOL_GPL(snd_soc_add_dai_link);
static void soc_set_of_name_prefix(struct snd_soc_component *component)
{
soc_set_of_name_prefix(component);
}
-static void soc_cleanup_component(struct snd_soc_component *component)
+static void soc_remove_component(struct snd_soc_component *component,
+ int probed)
{
- /* For framework level robustness */
- snd_soc_component_set_jack(component, NULL, NULL);
- list_del_init(&component->card_list);
- snd_soc_dapm_free(snd_soc_component_get_dapm(component));
- soc_cleanup_component_debugfs(component);
- component->card = NULL;
- snd_soc_component_module_put_when_remove(component);
-}
-
-static void soc_remove_component(struct snd_soc_component *component)
-{
if (!component->card)
return;
- snd_soc_component_remove(component);
+ if (probed)
+ snd_soc_component_remove(component);
+
+ /* For framework level robustness */
+ snd_soc_component_set_jack(component, NULL, NULL);
- soc_cleanup_component(component);
+ list_del_init(&component->card_list);
+ snd_soc_dapm_free(snd_soc_component_get_dapm(component));
+ soc_cleanup_component_debugfs(component);
+ component->card = NULL;
+ snd_soc_component_module_put_when_remove(component);
}
static int soc_probe_component(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
struct snd_soc_dai *dai;
+ int probed = 0;
int ret;
if (!strcmp(component->name, "snd-soc-dummy"))
dapm->bias_level != SND_SOC_BIAS_OFF,
"codec %s can not start from non-off bias with idle_bias_off==1\n",
component->name);
+ probed = 1;
/* machine specific init */
if (component->init) {
err_probe:
if (ret < 0)
- soc_cleanup_component(component);
+ soc_remove_component(component, probed);
return ret;
}
return 0;
}
-static void soc_rtd_free(struct snd_soc_pcm_runtime *rtd); /* remove me */
static void soc_remove_link_dais(struct snd_soc_card *card)
{
int i;
for_each_comp_order(order) {
for_each_card_rtds(card, rtd) {
-
- /* finalize rtd device */
- soc_rtd_free(rtd);
-
/* remove the CODEC DAI */
for_each_rtd_codec_dai(rtd, i, codec_dai)
soc_remove_dai(codec_dai, order);
for_each_comp_order(order) {
for_each_card_rtds(card, rtd) {
- for_each_rtdcom(rtd, rtdcom) {
- component = rtdcom->component;
-
+ for_each_rtd_components(rtd, rtdcom, component) {
if (component->driver->remove_order != order)
continue;
- soc_remove_component(component);
+ soc_remove_component(component, 1);
}
}
}
for_each_comp_order(order) {
for_each_card_rtds(card, rtd) {
- for_each_rtdcom(rtd, rtdcom) {
- component = rtdcom->component;
-
+ for_each_rtd_components(rtd, rtdcom, component) {
if (component->driver->probe_order != order)
continue;
return 0;
}
-static void soc_remove_dai_links(struct snd_soc_card *card)
-{
- struct snd_soc_dai_link *link, *_link;
-
- soc_remove_link_dais(card);
-
- soc_remove_link_components(card);
-
- for_each_card_links_safe(card, link, _link) {
- if (link->dobj.type == SND_SOC_DOBJ_DAI_LINK)
- dev_warn(card->dev, "Topology forgot to remove link %s?\n",
- link->name);
-
- list_del(&link->list);
- }
-}
-
-static int soc_init_dai_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *link)
-{
- int i;
- struct snd_soc_dai_link_component *codec, *platform;
-
- for_each_link_codecs(link, i, codec) {
- /*
- * Codec must be specified by 1 of name or OF node,
- * not both or neither.
- */
- if (!!codec->name == !!codec->of_node) {
- dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
- }
-
- /* Codec DAI name must be specified */
- if (!codec->dai_name) {
- dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n",
- link->name);
- return -EINVAL;
- }
-
- /*
- * Defer card registration if codec component is not added to
- * component list.
- */
- if (!soc_find_component(codec))
- return -EPROBE_DEFER;
- }
-
- for_each_link_platforms(link, i, platform) {
- /*
- * Platform may be specified by either name or OF node, but it
- * can be left unspecified, then no components will be inserted
- * in the rtdcom list
- */
- if (!!platform->name == !!platform->of_node) {
- dev_err(card->dev,
- "ASoC: Neither/both platform name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
- }
-
- /*
- * Defer card registration if platform component is not added to
- * component list.
- */
- if (!soc_find_component(platform))
- return -EPROBE_DEFER;
- }
-
- /* FIXME */
- if (link->num_cpus > 1) {
- dev_err(card->dev,
- "ASoC: multi cpu is not yet supported %s\n",
- link->name);
- return -EINVAL;
- }
-
- /*
- * CPU device may be specified by either name or OF node, but
- * can be left unspecified, and will be matched based on DAI
- * name alone..
- */
- if (link->cpus->name && link->cpus->of_node) {
- dev_err(card->dev,
- "ASoC: Neither/both cpu name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
- }
-
- /*
- * Defer card registartion if cpu dai component is not added to
- * component list.
- */
- if ((link->cpus->of_node || link->cpus->name) &&
- !soc_find_component(link->cpus))
- return -EPROBE_DEFER;
-
- /*
- * At least one of CPU DAI name or CPU device name/node must be
- * specified
- */
- if (!link->cpus->dai_name &&
- !(link->cpus->name || link->cpus->of_node)) {
- dev_err(card->dev,
- "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
- }
-
- return 0;
-}
-
void snd_soc_disconnect_sync(struct device *dev)
{
struct snd_soc_component *component =
}
EXPORT_SYMBOL_GPL(snd_soc_disconnect_sync);
-/**
- * snd_soc_add_dai_link - Add a DAI link dynamically
- * @card: The ASoC card to which the DAI link is added
- * @dai_link: The new DAI link to add
- *
- * This function adds a DAI link to the ASoC card's link list.
- *
- * Note: Topology can use this API to add DAI links when probing the
- * topology component. And machine drivers can still define static
- * DAI links in dai_link array.
- */
-int snd_soc_add_dai_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
-{
- if (dai_link->dobj.type
- && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) {
- dev_err(card->dev, "Invalid dai link type %d\n",
- dai_link->dobj.type);
- return -EINVAL;
- }
-
- lockdep_assert_held(&client_mutex);
- /*
- * Notify the machine driver for extra initialization
- * on the link created by topology.
- */
- if (dai_link->dobj.type && card->add_dai_link)
- card->add_dai_link(card, dai_link);
-
- /* see for_each_card_links */
- list_add_tail(&dai_link->list, &card->dai_link_list);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_dai_link);
-
-/**
- * snd_soc_remove_dai_link - Remove a DAI link from the list
- * @card: The ASoC card that owns the link
- * @dai_link: The DAI link to remove
- *
- * This function removes a DAI link from the ASoC card's link list.
- *
- * For DAI links previously added by topology, topology should
- * remove them by using the dobj embedded in the link.
- */
-void snd_soc_remove_dai_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *dai_link)
-{
- if (dai_link->dobj.type
- && dai_link->dobj.type != SND_SOC_DOBJ_DAI_LINK) {
- dev_err(card->dev, "Invalid dai link type %d\n",
- dai_link->dobj.type);
- return;
- }
-
- lockdep_assert_held(&client_mutex);
- /*
- * Notify the machine driver for extra destruction
- * on the link created by topology.
- */
- if (dai_link->dobj.type && card->remove_dai_link)
- card->remove_dai_link(card, dai_link);
-
- list_del(&dai_link->list);
-}
-EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link);
-
-static void soc_rtd_free(struct snd_soc_pcm_runtime *rtd)
-{
- if (rtd->dev_registered) {
- /* we don't need to call kfree() for rtd->dev */
- device_unregister(rtd->dev);
- rtd->dev_registered = 0;
- }
-}
-
-static void soc_rtd_release(struct device *dev)
-{
- kfree(dev);
-}
-
-static int soc_rtd_init(struct snd_soc_pcm_runtime *rtd, const char *name)
-{
- int ret = 0;
-
- /* register the rtd device */
- rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
- if (!rtd->dev)
- return -ENOMEM;
- rtd->dev->parent = rtd->card->dev;
- rtd->dev->release = soc_rtd_release;
- rtd->dev->groups = soc_dev_attr_groups;
- dev_set_name(rtd->dev, "%s", name);
- dev_set_drvdata(rtd->dev, rtd);
- INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
- INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
- INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
- INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
- ret = device_register(rtd->dev);
- if (ret < 0) {
- /* calling put_device() here to free the rtd->dev */
- put_device(rtd->dev);
- dev_err(rtd->card->dev,
- "ASoC: failed to register runtime device: %d\n", ret);
- return ret;
- }
- rtd->dev_registered = 1;
- return 0;
-}
-
static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais,
struct snd_soc_pcm_runtime *rtd)
{
return ret;
}
- ret = soc_rtd_init(rtd, dai_link->name);
- if (ret)
- return ret;
-
/* add DPCM sysfs entries */
soc_dpcm_debugfs_add(rtd);
* topology based drivers can use the DAI link id field to set PCM
* device number and then use rtd + a base offset of the BEs.
*/
- for_each_rtdcom(rtd, rtdcom) {
- component = rtdcom->component;
-
+ for_each_rtd_components(rtd, rtdcom, component) {
if (!component->driver->use_dai_pcm_id)
continue;
static int soc_probe_aux_devices(struct snd_soc_card *card)
{
- struct snd_soc_component *comp;
+ struct snd_soc_component *component;
int order;
int ret;
for_each_comp_order(order) {
- for_each_card_auxs(card, comp) {
- if (comp->driver->probe_order == order) {
- ret = soc_probe_component(card, comp);
- if (ret < 0) {
- dev_err(card->dev,
- "ASoC: failed to probe aux component %s %d\n",
- comp->name, ret);
- return ret;
- }
- }
+ for_each_card_auxs(card, component) {
+ if (component->driver->probe_order != order)
+ continue;
+
+ ret = soc_probe_component(card, component);
+ if (ret < 0)
+ return ret;
}
}
for_each_comp_order(order) {
for_each_card_auxs_safe(card, comp, _comp) {
if (comp->driver->remove_order == order)
- soc_remove_component(comp);
+ soc_remove_component(comp, 1);
}
}
}
return 1;
}
+/*
+ * Append a string to card->dmi_longname with character cleanups.
+ */
+static void append_dmi_string(struct snd_soc_card *card, const char *str)
+{
+ char *dst = card->dmi_longname;
+ size_t dst_len = sizeof(card->dmi_longname);
+ size_t len;
+
+ len = strlen(dst);
+ snprintf(dst + len, dst_len - len, "-%s", str);
+
+ len++; /* skip the separator "-" */
+ if (len < dst_len)
+ cleanup_dmi_name(dst + len);
+}
+
/**
* snd_soc_set_dmi_name() - Register DMI names to card
* @card: The card to register DMI names
int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour)
{
const char *vendor, *product, *product_version, *board;
- size_t longname_buf_size = sizeof(card->snd_card->longname);
- size_t len;
if (card->long_name)
return 0; /* long name already set by driver or from DMI */
- /* make up dmi long name as: vendor.product.version.board */
+ /* make up dmi long name as: vendor-product-version-board */
vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
if (!vendor || !is_dmi_valid(vendor)) {
dev_warn(card->dev, "ASoC: no DMI vendor name!\n");
return 0;
}
- snprintf(card->dmi_longname, sizeof(card->snd_card->longname),
- "%s", vendor);
+ snprintf(card->dmi_longname, sizeof(card->dmi_longname), "%s", vendor);
cleanup_dmi_name(card->dmi_longname);
product = dmi_get_system_info(DMI_PRODUCT_NAME);
if (product && is_dmi_valid(product)) {
- len = strlen(card->dmi_longname);
- snprintf(card->dmi_longname + len,
- longname_buf_size - len,
- "-%s", product);
-
- len++; /* skip the separator "-" */
- if (len < longname_buf_size)
- cleanup_dmi_name(card->dmi_longname + len);
+ append_dmi_string(card, product);
/*
* some vendors like Lenovo may only put a self-explanatory
* name in the product version field
*/
product_version = dmi_get_system_info(DMI_PRODUCT_VERSION);
- if (product_version && is_dmi_valid(product_version)) {
- len = strlen(card->dmi_longname);
- snprintf(card->dmi_longname + len,
- longname_buf_size - len,
- "-%s", product_version);
-
- len++;
- if (len < longname_buf_size)
- cleanup_dmi_name(card->dmi_longname + len);
- }
+ if (product_version && is_dmi_valid(product_version))
+ append_dmi_string(card, product_version);
}
board = dmi_get_system_info(DMI_BOARD_NAME);
if (board && is_dmi_valid(board)) {
- len = strlen(card->dmi_longname);
- snprintf(card->dmi_longname + len,
- longname_buf_size - len,
- "-%s", board);
-
- len++;
- if (len < longname_buf_size)
- cleanup_dmi_name(card->dmi_longname + len);
+ append_dmi_string(card, board);
} else if (!product) {
/* fall back to using legacy name */
dev_warn(card->dev, "ASoC: no DMI board/product name!\n");
}
/* Add flavour to dmi long name */
- if (flavour) {
- len = strlen(card->dmi_longname);
- snprintf(card->dmi_longname + len,
- longname_buf_size - len,
- "-%s", flavour);
-
- len++;
- if (len < longname_buf_size)
- cleanup_dmi_name(card->dmi_longname + len);
- }
+ if (flavour)
+ append_dmi_string(card, flavour);
/* set the card long name */
card->long_name = card->dmi_longname;
for_each_component(component) {
- /* does this component override FEs ? */
+ /* does this component override BEs ? */
if (!component->driver->ignore_machine)
continue;
continue;
}
- dev_info(card->dev, "info: override FE DAI link %s\n",
+ dev_info(card->dev, "info: override BE DAI link %s\n",
card->dai_link[i].name);
/* override platform component */
}
}
-static void soc_cleanup_card_resources(struct snd_soc_card *card)
+#define soc_setup_card_name(name, name1, name2, norm) \
+ __soc_setup_card_name(name, sizeof(name), name1, name2, norm)
+static void __soc_setup_card_name(char *name, int len,
+ const char *name1, const char *name2,
+ int normalization)
{
- /* free the ALSA card at first; this syncs with pending operations */
- if (card->snd_card) {
- snd_card_free(card->snd_card);
- card->snd_card = NULL;
+ int i;
+
+ snprintf(name, len, "%s", name1 ? name1 : name2);
+
+ if (!normalization)
+ return;
+
+ /*
+ * Name normalization
+ *
+ * The driver name is somewhat special, as it's used as a key for
+ * searches in the user-space.
+ *
+ * ex)
+ * "abcd??efg" -> "abcd__efg"
+ */
+ for (i = 0; i < len; i++) {
+ switch (name[i]) {
+ case '_':
+ case '-':
+ case '\0':
+ break;
+ default:
+ if (!isalnum(name[i]))
+ name[i] = '_';
+ break;
+ }
}
+}
+
+static void soc_cleanup_card_resources(struct snd_soc_card *card,
+ int card_probed)
+{
+ struct snd_soc_dai_link *link, *_link;
+
+ if (card->snd_card)
+ snd_card_disconnect_sync(card->snd_card);
+
+ snd_soc_dapm_shutdown(card);
/* remove and free each DAI */
- soc_remove_dai_links(card);
- soc_remove_pcm_runtimes(card);
+ soc_remove_link_dais(card);
+ soc_remove_link_components(card);
+
+ for_each_card_links_safe(card, link, _link)
+ snd_soc_remove_dai_link(card, link);
/* remove auxiliary devices */
soc_remove_aux_devices(card);
soc_cleanup_card_debugfs(card);
/* remove the card */
- if (card->remove)
+ if (card_probed && card->remove)
card->remove(card);
+
+ if (card->snd_card) {
+ snd_card_free(card->snd_card);
+ card->snd_card = NULL;
+ }
+}
+
+static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
+{
+ if (card->instantiated) {
+ int card_probed = 1;
+
+ card->instantiated = false;
+ snd_soc_flush_all_delayed_work(card);
+
+ soc_cleanup_card_resources(card, card_probed);
+ if (!unregister)
+ list_add(&card->list, &unbind_card_list);
+ } else {
+ if (unregister)
+ list_del(&card->list);
+ }
}
-static int snd_soc_instantiate_card(struct snd_soc_card *card)
+static int snd_soc_bind_card(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai_link *dai_link;
- int ret, i;
+ int ret, i, card_probed = 0;
mutex_lock(&client_mutex);
- for_each_card_prelinks(card, i, dai_link) {
- ret = soc_init_dai_link(card, dai_link);
- if (ret) {
- dev_err(card->dev, "ASoC: failed to init link %s: %d\n",
- dai_link->name, ret);
- mutex_unlock(&client_mutex);
- return ret;
- }
- }
mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
snd_soc_dapm_init(&card->dapm, card, NULL);
/* check whether any platform is ignore machine FE and using topology */
soc_check_tplg_fes(card);
- /* bind DAIs */
- for_each_card_prelinks(card, i, dai_link) {
- ret = soc_bind_dai_link(card, dai_link);
- if (ret != 0)
- goto probe_end;
- }
-
/* bind aux_devs too */
ret = soc_bind_aux_dev(card);
if (ret < 0)
goto probe_end;
/* add predefined DAI links to the list */
+ card->num_rtd = 0;
for_each_card_prelinks(card, i, dai_link) {
ret = snd_soc_add_dai_link(card, dai_link);
if (ret < 0)
ret = card->probe(card);
if (ret < 0)
goto probe_end;
+ card_probed = 1;
}
/* probe all components used by DAI links on this card */
/* probe auxiliary components */
ret = soc_probe_aux_devices(card);
- if (ret < 0)
+ if (ret < 0) {
+ dev_err(card->dev,
+ "ASoC: failed to probe aux component %d\n", ret);
goto probe_end;
-
- /*
- * Find new DAI links added during probing components and bind them.
- * Components with topology may bring new DAIs and DAI links.
- */
- for_each_card_links(card, dai_link) {
- if (soc_is_dai_link_bound(card, dai_link))
- continue;
-
- ret = soc_init_dai_link(card, dai_link);
- if (ret)
- goto probe_end;
- ret = soc_bind_dai_link(card, dai_link);
- if (ret)
- goto probe_end;
}
/* probe all DAI links on this card */
/* try to set some sane longname if DMI is available */
snd_soc_set_dmi_name(card, NULL);
- snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
- "%s", card->name);
- snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
- "%s", card->long_name ? card->long_name : card->name);
- snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
- "%s", card->driver_name ? card->driver_name : card->name);
- for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
- switch (card->snd_card->driver[i]) {
- case '_':
- case '-':
- case '\0':
- break;
- default:
- if (!isalnum(card->snd_card->driver[i]))
- card->snd_card->driver[i] = '_';
- break;
+ soc_setup_card_name(card->snd_card->shortname,
+ card->name, NULL, 0);
+ soc_setup_card_name(card->snd_card->longname,
+ card->long_name, card->name, 0);
+ soc_setup_card_name(card->snd_card->driver,
+ card->driver_name, card->name, 1);
+
+ if (card->components) {
+ /* the current implementation of snd_component_add() accepts */
+ /* multiple components in the string separated by space, */
+ /* but the string collision (identical string) check might */
+ /* not work correctly */
+ ret = snd_component_add(card->snd_card, card->components);
+ if (ret < 0) {
+ dev_err(card->dev, "ASoC: %s snd_component_add() failed: %d\n",
+ card->name, ret);
+ goto probe_end;
}
}
goto probe_end;
}
}
+ card_probed = 1;
snd_soc_dapm_new_widgets(card);
dapm_mark_endpoints_dirty(card);
snd_soc_dapm_sync(&card->dapm);
+ /* deactivate pins to sleep state */
+ for_each_card_rtds(card, rtd) {
+ struct snd_soc_dai *dai;
+
+ for_each_rtd_codec_dai(rtd, i, dai) {
+ if (!dai->active)
+ pinctrl_pm_select_sleep_state(dai->dev);
+ }
+
+ if (!rtd->cpu_dai->active)
+ pinctrl_pm_select_sleep_state(rtd->cpu_dai->dev);
+ }
+
probe_end:
if (ret < 0)
- soc_cleanup_card_resources(card);
+ soc_cleanup_card_resources(card, card_probed);
mutex_unlock(&card->mutex);
mutex_unlock(&client_mutex);
}
EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
-static int snd_soc_bind_card(struct snd_soc_card *card)
-{
- struct snd_soc_pcm_runtime *rtd;
- int ret;
-
- ret = snd_soc_instantiate_card(card);
- if (ret != 0)
- return ret;
-
- /* deactivate pins to sleep state */
- for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_dai *codec_dai;
- int j;
-
- for_each_rtd_codec_dai(rtd, j, codec_dai) {
- if (!codec_dai->active)
- pinctrl_pm_select_sleep_state(codec_dai->dev);
- }
-
- if (!cpu_dai->active)
- pinctrl_pm_select_sleep_state(cpu_dai->dev);
- }
-
- return ret;
-}
-
/**
* snd_soc_register_card - Register a card with the ASoC core
*
INIT_LIST_HEAD(&card->dapm_dirty);
INIT_LIST_HEAD(&card->dobj_list);
- card->num_rtd = 0;
card->instantiated = 0;
mutex_init(&card->mutex);
mutex_init(&card->dapm_mutex);
}
EXPORT_SYMBOL_GPL(snd_soc_register_card);
-static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
-{
- if (card->instantiated) {
- card->instantiated = false;
- snd_soc_dapm_shutdown(card);
- snd_soc_flush_all_delayed_work(card);
-
- /* remove all components used by DAI links on this card */
- soc_remove_link_components(card);
-
- soc_cleanup_card_resources(card);
- if (!unregister)
- list_add(&card->list, &unbind_card_list);
- } else {
- if (unregister)
- list_del(&card->list);
- }
-}
-
/**
* snd_soc_unregister_card - Unregister a card with the ASoC core
*
*id = 0;
}
- return kstrdup(name, GFP_KERNEL);
+ return devm_kstrdup(dev, name, GFP_KERNEL);
}
/*
return NULL;
}
- return kstrdup(dai_drv->name, GFP_KERNEL);
+ return devm_kstrdup(dev, dai_drv->name, GFP_KERNEL);
}
-/**
- * snd_soc_unregister_dai - Unregister DAIs from the ASoC core
- *
- * @component: The component for which the DAIs should be unregistered
- */
-static void snd_soc_unregister_dais(struct snd_soc_component *component)
+void snd_soc_unregister_dai(struct snd_soc_dai *dai)
{
- struct snd_soc_dai *dai, *_dai;
-
- for_each_component_dais_safe(component, dai, _dai) {
- dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n",
- dai->name);
- list_del(&dai->list);
- kfree(dai->name);
- kfree(dai);
- }
+ dev_dbg(dai->dev, "ASoC: Unregistered DAI '%s'\n", dai->name);
+ list_del(&dai->list);
}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
-/* Create a DAI and add it to the component's DAI list */
-static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component,
- struct snd_soc_dai_driver *dai_drv,
- bool legacy_dai_naming)
+/**
+ * snd_soc_register_dai - Register a DAI dynamically & create its widgets
+ *
+ * @component: The component the DAIs are registered for
+ * @dai_drv: DAI driver to use for the DAI
+ *
+ * Topology can use this API to register DAIs when probing a component.
+ * These DAIs's widgets will be freed in the card cleanup and the DAIs
+ * will be freed in the component cleanup.
+ */
+struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
+ struct snd_soc_dai_driver *dai_drv,
+ bool legacy_dai_naming)
{
struct device *dev = component->dev;
struct snd_soc_dai *dai;
dev_dbg(dev, "ASoC: dynamically register DAI %s\n", dev_name(dev));
- dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
+ lockdep_assert_held(&client_mutex);
+
+ dai = devm_kzalloc(dev, sizeof(*dai), GFP_KERNEL);
if (dai == NULL)
return NULL;
else
dai->id = component->num_dai;
}
- if (dai->name == NULL) {
- kfree(dai);
+ if (!dai->name)
return NULL;
- }
dai->component = component;
dai->dev = dev;
return dai;
}
+/**
+ * snd_soc_unregister_dai - Unregister DAIs from the ASoC core
+ *
+ * @component: The component for which the DAIs should be unregistered
+ */
+static void snd_soc_unregister_dais(struct snd_soc_component *component)
+{
+ struct snd_soc_dai *dai, *_dai;
+
+ for_each_component_dais_safe(component, dai, _dai)
+ snd_soc_unregister_dai(dai);
+}
+
/**
* snd_soc_register_dais - Register a DAI with the ASoC core
*
struct snd_soc_dai_driver *dai_drv,
size_t count)
{
- struct device *dev = component->dev;
struct snd_soc_dai *dai;
unsigned int i;
int ret;
- dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count);
-
for (i = 0; i < count; i++) {
-
- dai = soc_add_dai(component, dai_drv + i, count == 1 &&
+ dai = snd_soc_register_dai(component, dai_drv + i, count == 1 &&
!component->driver->non_legacy_dai_naming);
if (dai == NULL) {
ret = -ENOMEM;
return ret;
}
-/**
- * snd_soc_register_dai - Register a DAI dynamically & create its widgets
- *
- * @component: The component the DAIs are registered for
- * @dai_drv: DAI driver to use for the DAI
- *
- * Topology can use this API to register DAIs when probing a component.
- * These DAIs's widgets will be freed in the card cleanup and the DAIs
- * will be freed in the component cleanup.
- */
-int snd_soc_register_dai(struct snd_soc_component *component,
- struct snd_soc_dai_driver *dai_drv)
-{
- struct snd_soc_dapm_context *dapm =
- snd_soc_component_get_dapm(component);
- struct snd_soc_dai *dai;
- int ret;
-
- if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) {
- dev_err(component->dev, "Invalid dai type %d\n",
- dai_drv->dobj.type);
- return -EINVAL;
- }
-
- lockdep_assert_held(&client_mutex);
- dai = soc_add_dai(component, dai_drv, false);
- if (!dai)
- return -ENOMEM;
-
- /*
- * Create the DAI widgets here. After adding DAIs, topology may
- * also add routes that need these widgets as source or sink.
- */
- ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
- if (ret != 0) {
- dev_err(component->dev,
- "Failed to create DAI widgets %d\n", ret);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(snd_soc_register_dai);
-
static int snd_soc_component_initialize(struct snd_soc_component *component,
const struct snd_soc_component_driver *driver, struct device *dev)
{
#endif
-static void snd_soc_component_add(struct snd_soc_component *component)
-{
- mutex_lock(&client_mutex);
-
- if (!component->driver->write && !component->driver->read) {
- if (!component->regmap)
- component->regmap = dev_get_regmap(component->dev,
- NULL);
- if (component->regmap)
- snd_soc_component_setup_regmap(component);
- }
-
- /* see for_each_component */
- list_add(&component->list, &component_list);
-
- mutex_unlock(&client_mutex);
-}
-
-static void snd_soc_component_cleanup(struct snd_soc_component *component)
-{
- snd_soc_unregister_dais(component);
- kfree(component->name);
-}
-
-static void snd_soc_component_del_unlocked(struct snd_soc_component *component)
-{
- struct snd_soc_card *card = component->card;
-
- if (card)
- snd_soc_unbind_card(card, false);
-
- list_del(&component->list);
-}
-
#define ENDIANNESS_MAP(name) \
(SNDRV_PCM_FMTBIT_##name##LE | SNDRV_PCM_FMTBIT_##name##BE)
static u64 endianness_format_map[] = {
list_del(&card->list);
}
+static void snd_soc_del_component_unlocked(struct snd_soc_component *component)
+{
+ struct snd_soc_card *card = component->card;
+
+ snd_soc_unregister_dais(component);
+
+ if (card)
+ snd_soc_unbind_card(card, false);
+
+ list_del(&component->list);
+}
+
int snd_soc_add_component(struct device *dev,
struct snd_soc_component *component,
const struct snd_soc_component_driver *component_driver,
int ret;
int i;
+ mutex_lock(&client_mutex);
+
ret = snd_soc_component_initialize(component, component_driver, dev);
if (ret)
goto err_free;
goto err_cleanup;
}
- snd_soc_component_add(component);
- snd_soc_try_rebind_card();
+ if (!component->driver->write && !component->driver->read) {
+ if (!component->regmap)
+ component->regmap = dev_get_regmap(component->dev,
+ NULL);
+ if (component->regmap)
+ snd_soc_component_setup_regmap(component);
+ }
- return 0;
+ /* see for_each_component */
+ list_add(&component->list, &component_list);
err_cleanup:
- snd_soc_component_cleanup(component);
+ if (ret < 0)
+ snd_soc_del_component_unlocked(component);
err_free:
+ mutex_unlock(&client_mutex);
+
+ if (ret == 0)
+ snd_soc_try_rebind_card();
+
return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_add_component);
*
* @dev: The device to unregister
*/
-static int __snd_soc_unregister_component(struct device *dev)
-{
- struct snd_soc_component *component;
- int found = 0;
-
- mutex_lock(&client_mutex);
- for_each_component(component) {
- if (dev != component->dev)
- continue;
-
- snd_soc_tplg_component_remove(component,
- SND_SOC_TPLG_INDEX_ALL);
- snd_soc_component_del_unlocked(component);
- found = 1;
- break;
- }
- mutex_unlock(&client_mutex);
-
- if (found)
- snd_soc_component_cleanup(component);
-
- return found;
-}
-
void snd_soc_unregister_component(struct device *dev)
-{
- while (__snd_soc_unregister_component(dev))
- ;
-}
-EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
-
-struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
- const char *driver_name)
{
struct snd_soc_component *component;
- struct snd_soc_component *ret;
- ret = NULL;
mutex_lock(&client_mutex);
- for_each_component(component) {
- if (dev != component->dev)
- continue;
-
- if (driver_name &&
- (driver_name != component->driver->name) &&
- (strcmp(component->driver->name, driver_name) != 0))
- continue;
+ while (1) {
+ component = snd_soc_lookup_component_nolocked(dev, NULL);
+ if (!component)
+ break;
- ret = component;
- break;
+ snd_soc_del_component_unlocked(component);
}
mutex_unlock(&client_mutex);
-
- return ret;
}
-EXPORT_SYMBOL_GPL(snd_soc_lookup_component);
+EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
/* Retrieve a card's name from device tree */
int snd_soc_of_parse_card_name(struct snd_soc_card *card,
git.samba.org / sfrench / cifs-2.6.git / blobdiff