diff options
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 4117 |
1 files changed, 2023 insertions, 2094 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 0462b3ec977a..e4b21bf39e59 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -31,25 +31,20 @@ #include <linux/of.h> #include <linux/of_graph.h> #include <linux/dmi.h> +#include <linux/acpi.h> +#include <linux/string_choices.h> #include <sound/core.h> -#include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dpcm.h> #include <sound/soc-topology.h> +#include <sound/soc-link.h> #include <sound/initval.h> #define CREATE_TRACE_POINTS #include <trace/events/asoc.h> -#define NAME_SIZE 32 - -#ifdef CONFIG_DEBUG_FS -struct dentry *snd_soc_debugfs_root; -EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); -#endif - static DEFINE_MUTEX(client_mutex); static LIST_HEAD(component_list); static LIST_HEAD(unbind_card_list); @@ -58,6 +53,13 @@ static LIST_HEAD(unbind_card_list); list_for_each_entry(component, &component_list, list) /* + * This is used if driver don't need to have CPU/Codec/Platform + * dai_link. see soc.h + */ +struct snd_soc_dai_link_component null_dailink_component[0]; +EXPORT_SYMBOL_GPL(null_dailink_component); + +/* * This is a timeout to do a DAPM powerdown after a stream is closed(). * It can be used to eliminate pops between different playback streams, e.g. * between two audio tracks. @@ -66,32 +68,17 @@ static int pmdown_time = 5000; module_param(pmdown_time, int, 0); MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); -/* - * If a DMI filed contain strings in this blacklist (e.g. - * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken - * as invalid and dropped when setting the card long name from DMI info. - */ -static const char * const dmi_blacklist[] = { - "To be filled by OEM", - "TBD by OEM", - "Default String", - "Board Manufacturer", - "Board Vendor Name", - "Board Product Name", - NULL, /* terminator */ -}; - static ssize_t pmdown_time_show(struct device *dev, struct device_attribute *attr, char *buf) { struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); - return sprintf(buf, "%ld\n", rtd->pmdown_time); + return sysfs_emit(buf, "%ld\n", rtd->pmdown_time); } -static ssize_t pmdown_time_set(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t pmdown_time_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); int ret; @@ -103,7 +90,7 @@ static ssize_t pmdown_time_set(struct device *dev, return count; } -static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); +static DEVICE_ATTR_RW(pmdown_time); static struct attribute *soc_dev_attrs[] = { &dev_attr_pmdown_time.attr, @@ -116,13 +103,16 @@ static umode_t soc_dev_attr_is_visible(struct kobject *kobj, 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 */ + return rtd->dai_link->num_codecs ? attr->mode : 0; /* enabled only with codec */ } static const struct attribute_group soc_dapm_dev_group = { - .attrs = soc_dapm_dev_attrs, + .attrs = snd_soc_dapm_dev_attrs, .is_visible = soc_dev_attr_is_visible, }; @@ -138,6 +128,9 @@ static const struct attribute_group *soc_dev_attr_groups[] = { }; #ifdef CONFIG_DEBUG_FS +struct dentry *snd_soc_debugfs_root; +EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); + static void soc_init_component_debugfs(struct snd_soc_component *component) { if (!component->card->debugfs_card_root) @@ -158,19 +151,16 @@ static void soc_init_component_debugfs(struct snd_soc_component *component) component->card->debugfs_card_root); } - if (!component->debugfs_root) { - dev_warn(component->dev, - "ASoC: Failed to create component debugfs directory\n"); - return; - } - - snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), + snd_soc_dapm_debugfs_init(snd_soc_component_to_dapm(component), component->debugfs_root); } static void soc_cleanup_component_debugfs(struct snd_soc_component *component) { + if (!component->debugfs_root) + return; debugfs_remove_recursive(component->debugfs_root); + component->debugfs_root = NULL; } static int dai_list_show(struct seq_file *m, void *v) @@ -207,46 +197,30 @@ DEFINE_SHOW_ATTRIBUTE(component_list); static void soc_init_card_debugfs(struct snd_soc_card *card) { - if (!snd_soc_debugfs_root) - return; - card->debugfs_card_root = debugfs_create_dir(card->name, snd_soc_debugfs_root); - if (!card->debugfs_card_root) { - dev_warn(card->dev, - "ASoC: Failed to create card 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, - "ASoC: Failed to create pop time debugfs file\n"); + debugfs_create_u32("dapm_pop_time", 0644, card->debugfs_card_root, + &card->pop_time); + + snd_soc_dapm_debugfs_init(snd_soc_card_to_dapm(card), card->debugfs_card_root); } static void soc_cleanup_card_debugfs(struct snd_soc_card *card) { debugfs_remove_recursive(card->debugfs_card_root); + card->debugfs_card_root = NULL; } static void snd_soc_debugfs_init(void) { snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); - if (IS_ERR_OR_NULL(snd_soc_debugfs_root)) { - pr_warn("ASoC: Failed to create debugfs directory\n"); - snd_soc_debugfs_root = NULL; - return; - } - 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"); + debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, + &dai_list_fops); - if (!debugfs_create_file("components", 0444, snd_soc_debugfs_root, NULL, - &component_list_fops)) - pr_warn("ASoC: Failed to create component list debugfs file\n"); + debugfs_create_file("components", 0444, snd_soc_debugfs_root, NULL, + &component_list_fops); } static void snd_soc_debugfs_exit(void) @@ -256,186 +230,427 @@ static void snd_soc_debugfs_exit(void) #else -static inline void soc_init_component_debugfs( - struct snd_soc_component *component) -{ -} +static inline void soc_init_component_debugfs(struct snd_soc_component *component) { } +static inline void soc_cleanup_component_debugfs(struct snd_soc_component *component) { } +static inline void soc_init_card_debugfs(struct snd_soc_card *card) { } +static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) { } +static inline void snd_soc_debugfs_init(void) { } +static inline void snd_soc_debugfs_exit(void) { } -static inline void soc_cleanup_component_debugfs( - struct snd_soc_component *component) +#endif + +static int snd_soc_is_match_dai_args(const struct of_phandle_args *args1, + const struct of_phandle_args *args2) { + if (!args1 || !args2) + return 0; + + if (args1->np != args2->np) + return 0; + + for (int i = 0; i < args1->args_count; i++) + if (args1->args[i] != args2->args[i]) + return 0; + + return 1; } -static inline void soc_init_card_debugfs(struct snd_soc_card *card) +static inline int snd_soc_dlc_component_is_empty(struct snd_soc_dai_link_component *dlc) { + return !(dlc->dai_args || dlc->name || dlc->of_node); } -static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) +static inline int snd_soc_dlc_component_is_invalid(struct snd_soc_dai_link_component *dlc) { + return (dlc->name && dlc->of_node); } -static inline void snd_soc_debugfs_init(void) +static inline int snd_soc_dlc_dai_is_empty(struct snd_soc_dai_link_component *dlc) { + return !(dlc->dai_args || dlc->dai_name); } -static inline void snd_soc_debugfs_exit(void) +static int snd_soc_is_matching_dai(const struct snd_soc_dai_link_component *dlc, + struct snd_soc_dai *dai) { -} + if (!dlc) + return 0; -#endif + if (dlc->dai_args) + return snd_soc_is_match_dai_args(dai->driver->dai_args, dlc->dai_args); -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_rtdcom_list *new_rtdcom; + if (!dlc->dai_name) + return 1; - for_each_rtdcom(rtd, rtdcom) { - /* already connected */ - if (rtdcom->component == component) - return 0; - } + /* see snd_soc_dai_name_get() */ - new_rtdcom = kmalloc(sizeof(*new_rtdcom), GFP_KERNEL); - if (!new_rtdcom) - return -ENOMEM; + if (dai->driver->name && + strcmp(dlc->dai_name, dai->driver->name) == 0) + return 1; - new_rtdcom->component = component; - INIT_LIST_HEAD(&new_rtdcom->list); + if (strcmp(dlc->dai_name, dai->name) == 0) + return 1; - list_add_tail(&new_rtdcom->list, &rtd->component_list); + if (dai->component->name && + strcmp(dlc->dai_name, dai->component->name) == 0) + return 1; return 0; } -static void snd_soc_rtdcom_del_all(struct snd_soc_pcm_runtime *rtd) +const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai) { - struct snd_soc_rtdcom_list *rtdcom1, *rtdcom2; + /* see snd_soc_is_matching_dai() */ + if (dai->driver->name) + return dai->driver->name; + + if (dai->name) + return dai->name; - for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2) - kfree(rtdcom1); + if (dai->component->name) + return dai->component->name; - INIT_LIST_HEAD(&rtd->component_list); + return NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_name_get); + +static int snd_soc_rtd_add_component(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_component *component) +{ + struct snd_soc_component *comp; + int i; + + for_each_rtd_components(rtd, i, comp) { + /* already connected */ + if (comp == component) + return 0; + } + + /* see for_each_rtd_components */ + rtd->num_components++; // increment flex array count at first + rtd->components[rtd->num_components - 1] = component; + + return 0; } 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; + int i; if (!driver_name) return NULL; - for_each_rtdcom(rtd, rtdcom) { - const char *component_name = rtdcom->component->driver->name; + /* + * NOTE + * + * snd_soc_rtdcom_lookup() will find component from rtd by using + * specified driver name. + * But, if many components which have same driver name are connected + * to 1 rtd, this function will return 1st found component. + */ + for_each_rtd_components(rtd, i, component) { + const char *component_name = component->driver->name; if (!component_name) continue; if ((component_name == driver_name) || strcmp(component_name, driver_name) == 0) - return rtdcom->component; + return component; } return NULL; } EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup); -struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, - const char *dai_link, int stream) +struct snd_soc_component +*snd_soc_lookup_component_nolocked(struct device *dev, const char *driver_name) +{ + struct snd_soc_component *component; + + for_each_component(component) { + if (dev != component->dev) + continue; + + if (!driver_name) + return component; + + if (!component->driver->name) + continue; + + if (component->driver->name == driver_name) + return component; + + if (strcmp(component->driver->name, driver_name) == 0) + return component; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_lookup_component_nolocked); + +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_soc_pcm_runtime +*snd_soc_get_pcm_runtime(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; for_each_card_rtds(card, rtd) { - if (rtd->dai_link->no_pcm && - !strcmp(rtd->dai_link->name, dai_link)) - return rtd->pcm->streams[stream].substream; + if (rtd->dai_link == dai_link) + return rtd; } - dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link); + dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link->name); return NULL; } -EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); +EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); + +/* + * Power down the audio subsystem pmdown_time msecs after close is called. + * This is to ensure there are no pops or clicks in between any music tracks + * due to DAPM power cycling. + */ +void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); + int playback = SNDRV_PCM_STREAM_PLAYBACK; + + snd_soc_dpcm_mutex_lock(rtd); + + dev_dbg(rtd->dev, + "ASoC: pop wq checking: %s status: %s waiting: %s\n", + codec_dai->driver->playback.stream_name, + snd_soc_dai_stream_active(codec_dai, playback) ? + "active" : "inactive", + str_yes_no(rtd->pop_wait)); + + /* are we waiting on this codec DAI stream */ + if (rtd->pop_wait == 1) { + rtd->pop_wait = 0; + snd_soc_dapm_stream_event(rtd, playback, + SND_SOC_DAPM_STREAM_STOP); + } + + snd_soc_dpcm_mutex_unlock(rtd); +} +EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work); + +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); + + if (delayed_work_pending(&rtd->delayed_work)) + 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() + * + * We don't need to mind freeing for rtd, + * because it was created from dev (= rtd->dev) + * see + * soc_new_pcm_runtime() + * + * rtd = devm_kzalloc(dev, ...); + * rtd->dev = dev + */ + device_unregister(rtd->dev); +} -static const struct snd_soc_ops null_snd_soc_ops; +static void close_delayed_work(struct work_struct *work) { + struct snd_soc_pcm_runtime *rtd = + container_of(work, struct snd_soc_pcm_runtime, + delayed_work.work); + + if (rtd->close_delayed_work_func) + rtd->close_delayed_work_func(rtd); +} 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; + int stream; - 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; - 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, + struct_size(rtd, components, + dai_link->num_cpus + + dai_link->num_codecs + + dai_link->num_platforms), + GFP_KERNEL); + if (!rtd) { + device_unregister(dev); + return NULL; + } -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; + INIT_LIST_HEAD(&rtd->list); + for_each_pcm_streams(stream) { + INIT_LIST_HEAD(&rtd->dpcm[stream].be_clients); + INIT_LIST_HEAD(&rtd->dpcm[stream].fe_clients); + } + dev_set_drvdata(dev, rtd); + INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); -static void soc_add_pcm_runtime(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd) -{ + if ((dai_link->num_cpus + dai_link->num_codecs) == 0) { + dev_err(dev, "ASoC: it has no CPU or codec DAIs\n"); + goto free_rtd; + } + + /* + * for rtd->dais + */ + rtd->dais = devm_kcalloc(dev, dai_link->num_cpus + dai_link->num_codecs, + sizeof(struct snd_soc_dai *), + GFP_KERNEL); + if (!rtd->dais) + goto free_rtd; + + /* + * dais = [][][][][][][][][][][][][][][][][][] + * ^cpu_dais ^codec_dais + * |--- num_cpus ---|--- num_codecs --| + * see + * snd_soc_rtd_to_cpu() + * snd_soc_rtd_to_codec() + */ + rtd->card = card; + rtd->dai_link = dai_link; + rtd->id = card->num_rtd++; + rtd->pmdown_time = pmdown_time; /* default power off timeout */ + + /* see for_each_card_rtds */ list_add_tail(&rtd->list, &card->rtd_list); - rtd->num = card->num_rtd; - card->num_rtd++; + + ret = device_add_groups(dev, soc_dev_attr_groups); + if (ret < 0) + goto free_rtd; + + return rtd; + +free_rtd: + soc_free_pcm_runtime(rtd); + return NULL; } -static void soc_remove_pcm_runtimes(struct snd_soc_card *card) +static void snd_soc_fill_dummy_dai(struct snd_soc_card *card) { - struct snd_soc_pcm_runtime *rtd, *_rtd; + struct snd_soc_dai_link *dai_link; + int i; - for_each_card_rtds_safe(card, rtd, _rtd) { - list_del(&rtd->list); - soc_free_pcm_runtime(rtd); + /* + * COMP_DUMMY() creates size 0 array on dai_link. + * Fill it as dummy DAI in case of CPU/Codec here. + * Do nothing for Platform. + */ + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->num_cpus == 0 && dai_link->cpus) { + dai_link->num_cpus = 1; + dai_link->cpus = &snd_soc_dummy_dlc; + } + if (dai_link->num_codecs == 0 && dai_link->codecs) { + dai_link->num_codecs = 1; + dai_link->codecs = &snd_soc_dummy_dlc; + } } +} - card->num_rtd = 0; +static void snd_soc_flush_all_delayed_work(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd; + + for_each_card_rtds(card, rtd) + flush_delayed_work(&rtd->delayed_work); } -struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, - const char *dai_link) +#ifdef CONFIG_PM_SLEEP +static void soc_playback_digital_mute(struct snd_soc_card *card, int mute) { struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *dai; + int playback = SNDRV_PCM_STREAM_PLAYBACK; + int i; for_each_card_rtds(card, rtd) { - if (!strcmp(rtd->dai_link->name, dai_link)) - return rtd; + + if (rtd->dai_link->ignore_suspend) + continue; + + for_each_rtd_dais(rtd, i, dai) { + if (snd_soc_dai_stream_active(dai, playback)) + snd_soc_dai_digital_mute(dai, mute, playback); + } } - dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link); - return NULL; } -EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); -static void codec2codec_close_delayed_work(struct work_struct *work) +static void soc_dapm_suspend_resume(struct snd_soc_card *card, int event) { - /* - * Currently nothing to do for c2c links - * Since c2c links are internal nodes in the DAPM graph and - * don't interface with the outside world or application layer - * we don't have to do any special handling on close. - */ + struct snd_soc_pcm_runtime *rtd; + int stream; + + for_each_card_rtds(card, rtd) { + + if (rtd->dai_link->ignore_suspend) + continue; + + for_each_pcm_streams(stream) + snd_soc_dapm_stream_event(rtd, stream, event); + } } -#ifdef CONFIG_PM_SLEEP /* powers down audio subsystem for suspend */ int snd_soc_suspend(struct device *dev) { @@ -445,32 +660,20 @@ int snd_soc_suspend(struct device *dev) int i; /* If the card is not initialized yet there is nothing to do */ - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* * Due to the resume being scheduled into a workqueue we could * suspend before that's finished - wait for it to complete. */ - snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); + snd_power_wait(card->snd_card); /* 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 DACs */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *dai; - - if (rtd->dai_link->ignore_suspend) - continue; - - for_each_rtd_codec_dai(rtd, i, dai) { - struct snd_soc_dai_driver *drv = dai->driver; - - if (drv->ops->digital_mute && dai->playback_active) - drv->ops->digital_mute(dai, 1); - } - } + soc_playback_digital_mute(card, 1); /* suspend all pcms */ for_each_card_rtds(card, rtd) { @@ -480,51 +683,36 @@ int snd_soc_suspend(struct device *dev) snd_pcm_suspend_all(rtd->pcm); } - if (card->suspend_pre) - card->suspend_pre(card); + snd_soc_card_suspend_pre(card); - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - if (rtd->dai_link->ignore_suspend) - continue; + /* close any waiting streams */ + snd_soc_flush_all_delayed_work(card); - if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) - cpu_dai->driver->suspend(cpu_dai); - } + soc_dapm_suspend_resume(card, SND_SOC_DAPM_STREAM_SUSPEND); - /* close any waiting streams */ - for_each_card_rtds(card, rtd) - flush_delayed_work(&rtd->delayed_work); + /* Recheck all endpoints too, their state is affected by suspend */ + snd_soc_dapm_mark_endpoints_dirty(card); + snd_soc_dapm_sync(snd_soc_card_to_dapm(card)); + /* suspend all COMPONENTs */ for_each_card_rtds(card, rtd) { if (rtd->dai_link->ignore_suspend) continue; - snd_soc_dapm_stream_event(rtd, - SNDRV_PCM_STREAM_PLAYBACK, - SND_SOC_DAPM_STREAM_SUSPEND); - - snd_soc_dapm_stream_event(rtd, - SNDRV_PCM_STREAM_CAPTURE, - SND_SOC_DAPM_STREAM_SUSPEND); - } - - /* Recheck all endpoints too, their state is affected by suspend */ - dapm_mark_endpoints_dirty(card); - snd_soc_dapm_sync(&card->dapm); + for_each_rtd_components(rtd, i, component) { + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); - /* suspend all COMPONENTs */ - for_each_card_components(card, component) { - struct snd_soc_dapm_context *dapm = - snd_soc_component_get_dapm(component); + /* + * ignore if component was already suspended + */ + if (snd_soc_component_is_suspended(component)) + continue; - /* - * If there are paths active then the COMPONENT will be held - * with bias _ON and should not be suspended. - */ - if (!component->suspended) { + /* + * If there are paths active then the COMPONENT will be + * held with bias _ON and should not be suspended. + */ switch (snd_soc_dapm_get_bias_level(dapm)) { case SND_SOC_BIAS_STANDBY: /* @@ -533,17 +721,15 @@ int snd_soc_suspend(struct device *dev) * means it's doing something, * otherwise fall through. */ - if (dapm->idle_bias_off) { + if (!snd_soc_dapm_get_idle_bias(dapm)) { dev_dbg(component->dev, "ASoC: idle_bias_off CODEC on over suspend\n"); break; } - /* fall through */ + fallthrough; case SND_SOC_BIAS_OFF: - if (component->driver->suspend) - component->driver->suspend(component); - component->suspended = 1; + snd_soc_component_suspend(component); if (component->regmap) regcache_mark_dirty(component->regmap); /* deactivate pins to sleep state */ @@ -557,21 +743,7 @@ int snd_soc_suspend(struct device *dev) } } - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - if (rtd->dai_link->ignore_suspend) - continue; - - if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) - cpu_dai->driver->suspend(cpu_dai); - - /* deactivate pins to sleep state */ - pinctrl_pm_select_sleep_state(cpu_dai->dev); - } - - if (card->suspend_post) - card->suspend_post(card); + snd_soc_card_suspend_post(card); return 0; } @@ -586,9 +758,7 @@ static void soc_resume_deferred(struct work_struct *work) struct snd_soc_card *card = container_of(work, struct snd_soc_card, deferred_resume_work); - struct snd_soc_pcm_runtime *rtd; struct snd_soc_component *component; - int i; /* * our power state is still SNDRV_CTL_POWER_D3hot from suspend time, @@ -600,75 +770,25 @@ static void soc_resume_deferred(struct work_struct *work) /* Bring us up into D2 so that DAPM starts enabling things */ snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); - if (card->resume_pre) - card->resume_pre(card); - - /* resume control bus DAIs */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - if (rtd->dai_link->ignore_suspend) - continue; - - if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) - cpu_dai->driver->resume(cpu_dai); - } + snd_soc_card_resume_pre(card); for_each_card_components(card, component) { - if (component->suspended) { - if (component->driver->resume) - component->driver->resume(component); - component->suspended = 0; - } + if (snd_soc_component_is_suspended(component)) + snd_soc_component_resume(component); } - for_each_card_rtds(card, rtd) { - - if (rtd->dai_link->ignore_suspend) - continue; - - snd_soc_dapm_stream_event(rtd, - SNDRV_PCM_STREAM_PLAYBACK, - SND_SOC_DAPM_STREAM_RESUME); - - snd_soc_dapm_stream_event(rtd, - SNDRV_PCM_STREAM_CAPTURE, - SND_SOC_DAPM_STREAM_RESUME); - } + soc_dapm_suspend_resume(card, SND_SOC_DAPM_STREAM_RESUME); /* unmute any active DACs */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *dai; - - if (rtd->dai_link->ignore_suspend) - continue; + soc_playback_digital_mute(card, 0); - for_each_rtd_codec_dai(rtd, i, dai) { - struct snd_soc_dai_driver *drv = dai->driver; - - if (drv->ops->digital_mute && dai->playback_active) - drv->ops->digital_mute(dai, 0); - } - } - - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - if (rtd->dai_link->ignore_suspend) - continue; - - if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) - cpu_dai->driver->resume(cpu_dai); - } - - if (card->resume_post) - card->resume_post(card); + snd_soc_card_resume_post(card); dev_dbg(card->dev, "ASoC: resume work completed\n"); /* Recheck all endpoints too, their state is affected by suspend */ - dapm_mark_endpoints_dirty(card); - snd_soc_dapm_sync(&card->dapm); + snd_soc_dapm_mark_endpoints_dirty(card); + snd_soc_dapm_sync(snd_soc_card_to_dapm(card)); /* userspace can access us now we are back as we were before */ snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); @@ -678,77 +798,61 @@ static void soc_resume_deferred(struct work_struct *work) int snd_soc_resume(struct device *dev) { struct snd_soc_card *card = dev_get_drvdata(dev); - bool bus_control = false; - struct snd_soc_pcm_runtime *rtd; + struct snd_soc_component *component; /* If the card is not initialized yet there is nothing to do */ - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* activate pins from sleep state */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *codec_dai; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int j; - - if (cpu_dai->active) - pinctrl_pm_select_default_state(cpu_dai->dev); - - for_each_rtd_codec_dai(rtd, j, codec_dai) { - if (codec_dai->active) - pinctrl_pm_select_default_state(codec_dai->dev); - } - } + for_each_card_components(card, component) + if (snd_soc_component_active(component)) + pinctrl_pm_select_default_state(component->dev); - /* - * DAIs that also act as the control bus master might have other drivers - * hanging off them so need to resume immediately. Other drivers don't - * have that problem and may take a substantial amount of time to resume - * due to I/O costs and anti-pop so handle them out of line. - */ - for_each_card_rtds(card, rtd) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - - bus_control |= cpu_dai->driver->bus_control; - } - if (bus_control) { - dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); - soc_resume_deferred(&card->deferred_resume_work); - } else { - dev_dbg(dev, "ASoC: Scheduling resume work\n"); - if (!schedule_work(&card->deferred_resume_work)) - dev_err(dev, "ASoC: resume work item may be lost\n"); - } + dev_dbg(dev, "ASoC: Scheduling resume work\n"); + if (!schedule_work(&card->deferred_resume_work)) + dev_err(dev, "ASoC: resume work item may be lost\n"); return 0; } EXPORT_SYMBOL_GPL(snd_soc_resume); + +static void soc_resume_init(struct snd_soc_card *card) +{ + /* deferred resume work */ + INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); +} #else #define snd_soc_suspend NULL #define snd_soc_resume NULL +static inline void soc_resume_init(struct snd_soc_card *card) { } #endif -static const struct snd_soc_dai_ops null_dai_ops = { -}; +static struct device_node +*soc_component_to_node(struct snd_soc_component *component) +{ + struct device_node *of_node; -static struct snd_soc_component *soc_find_component( - const struct device_node *of_node, const char *name) + of_node = component->dev->of_node; + if (!of_node && component->dev->parent) + of_node = component->dev->parent->of_node; + + return of_node; +} + +struct of_phandle_args *snd_soc_copy_dai_args(struct device *dev, + const struct of_phandle_args *args) { - struct snd_soc_component *component; + struct of_phandle_args *ret = devm_kzalloc(dev, sizeof(*ret), GFP_KERNEL); - lockdep_assert_held(&client_mutex); + if (!ret) + return NULL; - for_each_component(component) { - if (of_node) { - if (component->dev->of_node == of_node) - return component; - } else if (strcmp(component->name, name) == 0) { - return component; - } - } + *ret = *args; - return NULL; + return ret; } +EXPORT_SYMBOL_GPL(snd_soc_copy_dai_args); static int snd_soc_is_matching_component( const struct snd_soc_dai_link_component *dlc, @@ -756,9 +860,19 @@ static int snd_soc_is_matching_component( { struct device_node *component_of_node; - component_of_node = component->dev->of_node; - if (!component_of_node && component->dev->parent) - component_of_node = component->dev->parent->of_node; + if (!dlc) + return 0; + + if (dlc->dai_args) { + struct snd_soc_dai *dai; + + for_each_component_dais(component, dai) + if (snd_soc_is_matching_dai(dlc, dai)) + return 1; + return 0; + } + + component_of_node = soc_component_to_node(component); if (dlc->of_node && component_of_node != dlc->of_node) return 0; @@ -768,6 +882,28 @@ static int snd_soc_is_matching_component( return 1; } +static struct snd_soc_component *soc_find_component( + const struct snd_soc_dai_link_component *dlc) +{ + struct snd_soc_component *component; + + lockdep_assert_held(&client_mutex); + + /* + * NOTE + * + * It returns *1st* found component, but some driver + * has few components by same of_node/name + * ex) + * CPU component and generic DMAEngine component + */ + for_each_component(component) + if (snd_soc_is_matching_component(dlc, component)) + return component; + + return NULL; +} + /** * snd_soc_find_dai - Find a registered DAI * @@ -788,541 +924,722 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs */ - for_each_component(component) { - if (!snd_soc_is_matching_component(dlc, component)) - continue; - for_each_component_dais(component, dai) { - if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) - && (!dai->driver->name - || strcmp(dai->driver->name, dlc->dai_name))) - continue; - - return dai; - } - } + for_each_component(component) + if (snd_soc_is_matching_component(dlc, component)) + for_each_component_dais(component, dai) + if (snd_soc_is_matching_dai(dlc, dai)) + return dai; return NULL; } EXPORT_SYMBOL_GPL(snd_soc_find_dai); -/** - * snd_soc_find_dai_link - Find a DAI link - * - * @card: soc card - * @id: DAI link ID to match - * @name: DAI link name to match, optional - * @stream_name: DAI link stream name to match, optional - * - * This function will search all existing DAI links of the soc card to - * find the link of the same ID. Since DAI links may not have their - * unique ID, so name and stream name should also match if being - * specified. - * - * Return: pointer of DAI link, or NULL if not found. - */ -struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, - int id, const char *name, - const char *stream_name) +struct snd_soc_dai *snd_soc_find_dai_with_mutex( + const struct snd_soc_dai_link_component *dlc) { - struct snd_soc_dai_link *link, *_link; + struct snd_soc_dai *dai; - lockdep_assert_held(&client_mutex); + mutex_lock(&client_mutex); + dai = snd_soc_find_dai(dlc); + mutex_unlock(&client_mutex); - for_each_card_links_safe(card, link, _link) { - if (link->id != id) - continue; + return dai; +} +EXPORT_SYMBOL_GPL(snd_soc_find_dai_with_mutex); - if (name && (!link->name || strcmp(name, link->name))) - continue; +static int soc_dai_link_sanity_check(struct snd_soc_card *card, + struct snd_soc_dai_link *link) +{ + int i; + struct snd_soc_dai_link_component *dlc; - if (stream_name && (!link->stream_name - || strcmp(stream_name, link->stream_name))) - continue; + /* Codec check */ + for_each_link_codecs(link, i, dlc) { + /* + * Codec must be specified by 1 of name or OF node, + * not both or neither. + */ + if (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; + + if (snd_soc_dlc_component_is_empty(dlc)) + goto component_empty; + + /* Codec DAI name must be specified */ + if (snd_soc_dlc_dai_is_empty(dlc)) + goto dai_empty; - return link; + /* + * Defer card registration if codec component is not added to + * component list. + */ + if (!soc_find_component(dlc)) + goto component_not_found; } - return NULL; -} -EXPORT_SYMBOL_GPL(snd_soc_find_dai_link); + /* Platform check */ + for_each_link_platforms(link, i, dlc) { + /* + * 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 (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; -static bool soc_is_dai_link_bound(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) -{ - struct snd_soc_pcm_runtime *rtd; + if (snd_soc_dlc_component_is_empty(dlc)) + goto component_empty; - for_each_card_rtds(card, rtd) { - if (rtd->dai_link == dai_link) - return true; + /* + * Defer card registration if platform component is not added to + * component list. + */ + if (!soc_find_component(dlc)) + goto component_not_found; } - return false; + /* CPU check */ + for_each_link_cpus(link, i, dlc) { + /* + * 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 (snd_soc_dlc_component_is_invalid(dlc)) + goto component_invalid; + + + if (snd_soc_dlc_component_is_empty(dlc)) { + /* + * At least one of CPU DAI name or CPU device name/node must be specified + */ + if (snd_soc_dlc_dai_is_empty(dlc)) + goto component_dai_empty; + } else { + /* + * Defer card registration if Component is not added + */ + if (!soc_find_component(dlc)) + goto component_not_found; + } + } + + return 0; + +component_invalid: + dev_err(card->dev, "ASoC: Both Component name/of_node are set for %s\n", link->name); + return -EINVAL; + +component_empty: + dev_err(card->dev, "ASoC: Neither Component name/of_node are set for %s\n", link->name); + return -EINVAL; + +component_not_found: + dev_dbg(card->dev, "ASoC: Component %s not found for link %s\n", dlc->name, link->name); + return -EPROBE_DEFER; + +dai_empty: + dev_err(card->dev, "ASoC: DAI name is not set for %s\n", link->name); + return -EINVAL; + +component_dai_empty: + dev_err(card->dev, "ASoC: Neither DAI/Component name/of_node are set for %s\n", link->name); + return -EINVAL; } -static int soc_bind_dai_link(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) +#define MAX_DEFAULT_CH_MAP_SIZE 8 +static struct snd_soc_dai_link_ch_map default_ch_map_sync[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 1, .codec = 1 }, + { .cpu = 2, .codec = 2 }, + { .cpu = 3, .codec = 3 }, + { .cpu = 4, .codec = 4 }, + { .cpu = 5, .codec = 5 }, + { .cpu = 6, .codec = 6 }, + { .cpu = 7, .codec = 7 }, +}; +static struct snd_soc_dai_link_ch_map default_ch_map_1cpu[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 0, .codec = 1 }, + { .cpu = 0, .codec = 2 }, + { .cpu = 0, .codec = 3 }, + { .cpu = 0, .codec = 4 }, + { .cpu = 0, .codec = 5 }, + { .cpu = 0, .codec = 6 }, + { .cpu = 0, .codec = 7 }, +}; +static struct snd_soc_dai_link_ch_map default_ch_map_1codec[MAX_DEFAULT_CH_MAP_SIZE] = { + { .cpu = 0, .codec = 0 }, + { .cpu = 1, .codec = 0 }, + { .cpu = 2, .codec = 0 }, + { .cpu = 3, .codec = 0 }, + { .cpu = 4, .codec = 0 }, + { .cpu = 5, .codec = 0 }, + { .cpu = 6, .codec = 0 }, + { .cpu = 7, .codec = 0 }, +}; +static int snd_soc_compensate_channel_connection_map(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) { - struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai_link_component *codecs = dai_link->codecs; - struct snd_soc_dai_link_component cpu_dai_component; - struct snd_soc_component *component; - struct snd_soc_dai **codec_dais; + struct snd_soc_dai_link_ch_map *ch_maps; int i; - if (dai_link->ignore) - return 0; - - dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); + /* + * dai_link->ch_maps indicates how CPU/Codec are connected. + * It will be a map seen from a larger number of DAI. + * see + * soc.h :: [dai_link->ch_maps Image sample] + */ - if (soc_is_dai_link_bound(card, dai_link)) { - dev_dbg(card->dev, "ASoC: dai link %s already bound\n", + /* it should have ch_maps if connection was N:M */ + if (dai_link->num_cpus > 1 && dai_link->num_codecs > 1 && + dai_link->num_cpus != dai_link->num_codecs && !dai_link->ch_maps) { + dev_err(card->dev, "need to have ch_maps when N:M connection (%s)", dai_link->name); - return 0; + return -EINVAL; } - rtd = soc_new_pcm_runtime(card, dai_link); - if (!rtd) - return -ENOMEM; + /* do nothing if it has own maps */ + if (dai_link->ch_maps) + goto sanity_check; - cpu_dai_component.name = dai_link->cpu_name; - cpu_dai_component.of_node = dai_link->cpu_of_node; - cpu_dai_component.dai_name = dai_link->cpu_dai_name; - rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); - if (!rtd->cpu_dai) { - dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", - dai_link->cpu_dai_name); - goto _err_defer; + /* check default map size */ + if (dai_link->num_cpus > MAX_DEFAULT_CH_MAP_SIZE || + dai_link->num_codecs > MAX_DEFAULT_CH_MAP_SIZE) { + dev_err(card->dev, "soc-core.c needs update default_connection_maps"); + return -EINVAL; } - snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component); - rtd->num_codecs = dai_link->num_codecs; + /* Compensate missing map for ... */ + if (dai_link->num_cpus == dai_link->num_codecs) + dai_link->ch_maps = default_ch_map_sync; /* for 1:1 or N:N */ + else if (dai_link->num_cpus < dai_link->num_codecs) + dai_link->ch_maps = default_ch_map_1cpu; /* for 1:N */ + else + dai_link->ch_maps = default_ch_map_1codec; /* for N:1 */ - /* Find CODEC from registered CODECs */ - /* we can use for_each_rtd_codec_dai() after this */ - codec_dais = rtd->codec_dais; - for (i = 0; i < rtd->num_codecs; i++) { - codec_dais[i] = snd_soc_find_dai(&codecs[i]); - if (!codec_dais[i]) { - dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", - codecs[i].dai_name); - goto _err_defer; +sanity_check: + dev_dbg(card->dev, "dai_link %s\n", dai_link->stream_name); + for_each_link_ch_maps(dai_link, i, ch_maps) { + if ((ch_maps->cpu >= dai_link->num_cpus) || + (ch_maps->codec >= dai_link->num_codecs)) { + dev_err(card->dev, + "unexpected dai_link->ch_maps[%d] index (cpu(%d/%d) codec(%d/%d))", + i, + ch_maps->cpu, dai_link->num_cpus, + ch_maps->codec, dai_link->num_codecs); + return -EINVAL; } - snd_soc_rtdcom_add(rtd, codec_dais[i]->component); - } - /* Single codec links expect codec and codec_dai in runtime data */ - rtd->codec_dai = codec_dais[0]; - - /* find one from the set of registered platforms */ - for_each_component(component) { - if (!snd_soc_is_matching_component(dai_link->platform, - component)) - continue; - - snd_soc_rtdcom_add(rtd, component); + dev_dbg(card->dev, " [%d] cpu%d <-> codec%d\n", + i, ch_maps->cpu, ch_maps->codec); } - soc_add_pcm_runtime(card, rtd); return 0; - -_err_defer: - soc_free_pcm_runtime(rtd); - return -EPROBE_DEFER; } -static void soc_remove_component(struct snd_soc_component *component) +/** + * snd_soc_remove_pcm_runtime - Remove a pcm_runtime from card + * @card: The ASoC card to which the pcm_runtime has + * @rtd: The pcm_runtime to remove + * + * This function removes a pcm_runtime from the ASoC card. + */ +void snd_soc_remove_pcm_runtime(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd) { - if (!component->card) + if (!rtd) return; - list_del(&component->card_list); - - if (component->driver->remove) - component->driver->remove(component); + lockdep_assert_held(&client_mutex); - snd_soc_dapm_free(snd_soc_component_get_dapm(component)); + /* + * Notify the machine driver for extra destruction + */ + snd_soc_card_remove_dai_link(card, rtd->dai_link); - soc_cleanup_component_debugfs(component); - component->card = NULL; - module_put(component->dev->driver->owner); + soc_free_pcm_runtime(rtd); } +EXPORT_SYMBOL_GPL(snd_soc_remove_pcm_runtime); -static void soc_remove_dai(struct snd_soc_dai *dai, int order) +/** + * snd_soc_add_pcm_runtime - Add a pcm_runtime dynamically via dai_link + * @card: The ASoC card to which the pcm_runtime is added + * @dai_link: The DAI link to find pcm_runtime + * + * This function adds a pcm_runtime ASoC card by using dai_link. + * + * Note: Topology can use this API to add pcm_runtime when probing the + * topology component. And machine drivers can still define static + * DAI links in dai_link array. + */ +static int snd_soc_add_pcm_runtime(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) { - int err; - - if (!dai || !dai->probed || - dai->driver->remove_order != order) - return; - - if (dai->driver->remove) { - err = dai->driver->remove(dai); - if (err < 0) - dev_err(dai->dev, - "ASoC: failed to remove %s: %d\n", - dai->name, err); - } - dai->probed = 0; -} + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai_link_component *codec, *platform, *cpu; + struct snd_soc_component *component; + int i, id, ret; -static void soc_remove_link_dais(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, int order) -{ - int i; - struct snd_soc_dai *codec_dai; + lockdep_assert_held(&client_mutex); - /* unregister the rtd device */ - if (rtd->dev_registered) { - device_unregister(rtd->dev); - rtd->dev_registered = 0; - } + /* + * Notify the machine driver for extra initialization + */ + ret = snd_soc_card_add_dai_link(card, dai_link); + if (ret < 0) + return ret; - /* remove the CODEC DAI */ - for_each_rtd_codec_dai(rtd, i, codec_dai) - soc_remove_dai(codec_dai, order); + if (dai_link->ignore) + return 0; - soc_remove_dai(rtd->cpu_dai, order); -} + dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); -static void soc_remove_link_components(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, int order) -{ - struct snd_soc_component *component; - struct snd_soc_rtdcom_list *rtdcom; + ret = soc_dai_link_sanity_check(card, dai_link); + if (ret < 0) + return ret; - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; + rtd = soc_new_pcm_runtime(card, dai_link); + if (!rtd) + return -ENOMEM; - if (component->driver->remove_order == order) - soc_remove_component(component); + for_each_link_cpus(dai_link, i, cpu) { + snd_soc_rtd_to_cpu(rtd, i) = snd_soc_find_dai(cpu); + if (!snd_soc_rtd_to_cpu(rtd, i)) { + dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", + cpu->dai_name); + goto _err_defer; + } + snd_soc_rtd_add_component(rtd, snd_soc_rtd_to_cpu(rtd, i)->component); } -} -static void soc_remove_dai_links(struct snd_soc_card *card) -{ - int order; - struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai_link *link, *_link; + /* Find CODEC from registered CODECs */ + for_each_link_codecs(dai_link, i, codec) { + snd_soc_rtd_to_codec(rtd, i) = snd_soc_find_dai(codec); + if (!snd_soc_rtd_to_codec(rtd, i)) { + dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n", + codec->dai_name); + goto _err_defer; + } - for_each_comp_order(order) { - for_each_card_rtds(card, rtd) - soc_remove_link_dais(card, rtd, order); + snd_soc_rtd_add_component(rtd, snd_soc_rtd_to_codec(rtd, i)->component); } - for_each_comp_order(order) { - for_each_card_rtds(card, rtd) - soc_remove_link_components(card, rtd, order); - } + /* Find PLATFORM from registered PLATFORMs */ + for_each_link_platforms(dai_link, i, platform) { + for_each_component(component) { + if (!snd_soc_is_matching_component(platform, component)) + continue; - 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); + if (snd_soc_component_is_dummy(component) && component->num_dai) + continue; - list_del(&link->list); + snd_soc_rtd_add_component(rtd, component); + } } -} - -static int snd_soc_init_platform(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) -{ - struct snd_soc_dai_link_component *platform = dai_link->platform; /* + * Most drivers will register their PCMs using DAI link ordering but + * 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. + * * FIXME * - * this function should be removed in the future + * This should be implemented by using "dai_link" feature instead of + * "component" feature. */ - /* convert Legacy platform link */ - if (!platform) { - platform = devm_kzalloc(card->dev, - sizeof(struct snd_soc_dai_link_component), - GFP_KERNEL); - if (!platform) - return -ENOMEM; + id = rtd->id; + for_each_rtd_components(rtd, i, component) { + if (!component->driver->use_dai_pcm_id) + continue; - dai_link->platform = platform; - platform->name = dai_link->platform_name; - platform->of_node = dai_link->platform_of_node; - platform->dai_name = NULL; + if (rtd->dai_link->no_pcm) + id += component->driver->be_pcm_base; + else + id = rtd->dai_link->id; } - - /* if there's no platform we match on the empty platform */ - if (!platform->name && - !platform->of_node) - platform->name = "snd-soc-dummy"; + rtd->id = id; return 0; + +_err_defer: + snd_soc_remove_pcm_runtime(card, rtd); + return -EPROBE_DEFER; } -static int snd_soc_init_multicodec(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) +int snd_soc_add_pcm_runtimes(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link, + int num_dai_link) { - /* Legacy codec/codec_dai link is a single entry in multicodec */ - if (dai_link->codec_name || dai_link->codec_of_node || - dai_link->codec_dai_name) { - dai_link->num_codecs = 1; + for (int i = 0; i < num_dai_link; i++) { + int ret; - dai_link->codecs = devm_kzalloc(card->dev, - sizeof(struct snd_soc_dai_link_component), - GFP_KERNEL); - if (!dai_link->codecs) - return -ENOMEM; - - dai_link->codecs[0].name = dai_link->codec_name; - dai_link->codecs[0].of_node = dai_link->codec_of_node; - dai_link->codecs[0].dai_name = dai_link->codec_dai_name; - } + ret = snd_soc_compensate_channel_connection_map(card, dai_link + i); + if (ret < 0) + return ret; - if (!dai_link->codecs) { - dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); - return -EINVAL; + ret = snd_soc_add_pcm_runtime(card, dai_link + i); + if (ret < 0) + return ret; } return 0; } +EXPORT_SYMBOL_GPL(snd_soc_add_pcm_runtimes); -static int soc_init_dai_link(struct snd_soc_card *card, - struct snd_soc_dai_link *link) +static void snd_soc_runtime_get_dai_fmt(struct snd_soc_pcm_runtime *rtd) { - int i, ret; - struct snd_soc_dai_link_component *codec; + struct snd_soc_dai_link *dai_link = rtd->dai_link; + struct snd_soc_dai *dai, *not_used; + u64 pos, possible_fmt; + unsigned int mask = 0, dai_fmt = 0; + int i, j, priority, pri, until; - ret = snd_soc_init_platform(card, link); - if (ret) { - dev_err(card->dev, "ASoC: failed to init multiplatform\n"); - return ret; - } + /* + * Get selectable format from each DAIs. + * + **************************** + * NOTE + * Using .auto_selectable_formats is not mandatory, + * we can select format manually from Sound Card. + * When use it, driver should list well tested format only. + **************************** + * + * ex) + * auto_selectable_formats (= SND_SOC_POSSIBLE_xxx) + * (A) (B) (C) + * DAI0_: { 0x000F, 0x00F0, 0x0F00 }; + * DAI1 : { 0xF000, 0x0F00 }; + * (X) (Y) + * + * "until" will be 3 in this case (MAX array size from DAI0 and DAI1) + * Here is dev_dbg() message and comments + * + * priority = 1 + * DAI0: (pri, fmt) = (1, 000000000000000F) // 1st check (A) DAI1 is not selected + * DAI1: (pri, fmt) = (0, 0000000000000000) // Necessary Waste + * DAI0: (pri, fmt) = (1, 000000000000000F) // 2nd check (A) + * DAI1: (pri, fmt) = (1, 000000000000F000) // (X) + * priority = 2 + * DAI0: (pri, fmt) = (2, 00000000000000FF) // 3rd check (A) + (B) + * DAI1: (pri, fmt) = (1, 000000000000F000) // (X) + * DAI0: (pri, fmt) = (2, 00000000000000FF) // 4th check (A) + (B) + * DAI1: (pri, fmt) = (2, 000000000000FF00) // (X) + (Y) + * priority = 3 + * DAI0: (pri, fmt) = (3, 0000000000000FFF) // 5th check (A) + (B) + (C) + * DAI1: (pri, fmt) = (2, 000000000000FF00) // (X) + (Y) + * found auto selected format: 0000000000000F00 + */ + until = snd_soc_dai_get_fmt_max_priority(rtd); + for (priority = 1; priority <= until; priority++) { + for_each_rtd_dais(rtd, j, not_used) { - ret = snd_soc_init_multicodec(card, link); - if (ret) { - dev_err(card->dev, "ASoC: failed to init multicodec\n"); - return ret; - } + possible_fmt = ULLONG_MAX; + for_each_rtd_dais(rtd, i, dai) { + u64 fmt = 0; - 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; + pri = (j >= i) ? priority : priority - 1; + fmt = snd_soc_dai_get_fmt(dai, pri); + possible_fmt &= fmt; + } + if (possible_fmt) + goto found; } } - + /* Not Found */ + return; +found: /* - * Platform may be specified by either name or OF node, but - * can be left unspecified, and a dummy platform will be used. - */ - if (link->platform->name && link->platform->of_node) { - dev_err(card->dev, - "ASoC: Both platform name/of_node are set for %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.. + * convert POSSIBLE_DAIFMT to DAIFMT + * + * Some basic/default settings on each is defined as 0. + * see + * SND_SOC_DAIFMT_NB_NF + * SND_SOC_DAIFMT_GATED + * + * SND_SOC_DAIFMT_xxx_MASK can't notice it if Sound Card specify + * these value, and will be overwrite to auto selected value. + * + * To avoid such issue, loop from 63 to 0 here. + * Small number of SND_SOC_POSSIBLE_xxx will be Hi priority. + * Basic/Default settings of each part and above are defined + * as Hi priority (= small number) of SND_SOC_POSSIBLE_xxx. */ - if (link->cpu_name && link->cpu_of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; + for (i = 63; i >= 0; i--) { + pos = 1ULL << i; + switch (possible_fmt & pos) { + /* + * for format + */ + case SND_SOC_POSSIBLE_DAIFMT_I2S: + case SND_SOC_POSSIBLE_DAIFMT_RIGHT_J: + case SND_SOC_POSSIBLE_DAIFMT_LEFT_J: + case SND_SOC_POSSIBLE_DAIFMT_DSP_A: + case SND_SOC_POSSIBLE_DAIFMT_DSP_B: + case SND_SOC_POSSIBLE_DAIFMT_AC97: + case SND_SOC_POSSIBLE_DAIFMT_PDM: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) | i; + break; + /* + * for clock + */ + case SND_SOC_POSSIBLE_DAIFMT_CONT: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) | SND_SOC_DAIFMT_CONT; + break; + case SND_SOC_POSSIBLE_DAIFMT_GATED: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_MASK) | SND_SOC_DAIFMT_GATED; + break; + /* + * for clock invert + */ + case SND_SOC_POSSIBLE_DAIFMT_NB_NF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_NB_NF; + break; + case SND_SOC_POSSIBLE_DAIFMT_NB_IF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_NB_IF; + break; + case SND_SOC_POSSIBLE_DAIFMT_IB_NF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_IB_NF; + break; + case SND_SOC_POSSIBLE_DAIFMT_IB_IF: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_INV_MASK) | SND_SOC_DAIFMT_IB_IF; + break; + /* + * for clock provider / consumer + */ + case SND_SOC_POSSIBLE_DAIFMT_CBP_CFP: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBP_CFP; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBC_CFP: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBC_CFP; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBP_CFC: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBP_CFC; + break; + case SND_SOC_POSSIBLE_DAIFMT_CBC_CFC: + dai_fmt = (dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) | SND_SOC_DAIFMT_CBC_CFC; + break; + } } + /* - * At least one of CPU DAI name or CPU device name/node must be - * specified + * Some driver might have very complex limitation. + * In such case, user want to auto-select non-limitation part, + * and want to manually specify complex part. + * + * Or for example, if both CPU and Codec can be clock provider, + * but because of its quality, user want to specify it manually. + * + * Use manually specified settings if sound card did. */ - if (!link->cpu_dai_name && - !(link->cpu_name || link->cpu_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 = - snd_soc_lookup_component(dev, NULL); - - if (!component || !component->card) - return; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK)) + mask |= SND_SOC_DAIFMT_FORMAT_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_CLOCK_MASK)) + mask |= SND_SOC_DAIFMT_CLOCK_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_INV_MASK)) + mask |= SND_SOC_DAIFMT_INV_MASK; + if (!(dai_link->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) + mask |= SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; - snd_card_disconnect_sync(component->card->snd_card); + dai_link->dai_fmt |= (dai_fmt & mask); } -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 + * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime + * @rtd: The runtime for which the DAI link format should be changed + * @dai_fmt: The new DAI link format * - * This function adds a DAI link to the ASoC card's link list. + * This function updates the DAI link format for all DAIs connected to the DAI + * link for the specified runtime. * - * 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. + * Note: For setups with a static format set the dai_fmt field in the + * corresponding snd_dai_link struct instead of using this function. + * + * Returns 0 on success, otherwise a negative error code. */ -int snd_soc_add_dai_link(struct snd_soc_card *card, - struct snd_soc_dai_link *dai_link) +int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, + unsigned int dai_fmt) { - 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; - } + struct snd_soc_dai *cpu_dai; + struct snd_soc_dai *codec_dai; + unsigned int ext_fmt; + unsigned int i; + int ret; + + if (!dai_fmt) + return 0; - lockdep_assert_held(&client_mutex); /* - * Notify the machine driver for extra initialization - * on the link created by topology. + * dai_fmt has 4 types + * 1. SND_SOC_DAIFMT_FORMAT_MASK + * 2. SND_SOC_DAIFMT_CLOCK + * 3. SND_SOC_DAIFMT_INV + * 4. SND_SOC_DAIFMT_CLOCK_PROVIDER + * + * 4. CLOCK_PROVIDER is set from Codec perspective in dai_fmt. So it will be flipped + * when this function calls set_fmt() for CPU (CBx_CFx -> Bx_Cx). see below. + * This mean, we can't set CPU/Codec both are clock consumer for example. + * New idea handles 4. in each dai->ext_fmt. It can keep compatibility. + * + * Legacy + * dai_fmt includes 1, 2, 3, 4 + * + * New idea + * dai_fmt includes 1, 2, 3 + * ext_fmt includes 4 */ - if (dai_link->dobj.type && card->add_dai_link) - card->add_dai_link(card, dai_link); + for_each_rtd_codec_dais(rtd, i, codec_dai) { + ext_fmt = rtd->dai_link->codecs[i].ext_fmt; + ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt | ext_fmt); + if (ret != 0 && ret != -ENOTSUPP) + return ret; + } - list_add_tail(&dai_link->list, &card->dai_link_list); + /* Flip the polarity for the "CPU" end of link */ + /* Will effect only for 4. SND_SOC_DAIFMT_CLOCK_PROVIDER */ + dai_fmt = snd_soc_daifmt_clock_provider_flipped(dai_fmt); + + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + ext_fmt = rtd->dai_link->cpus[i].ext_fmt; + ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt | ext_fmt); + if (ret != 0 && ret != -ENOTSUPP) + return ret; + } return 0; } -EXPORT_SYMBOL_GPL(snd_soc_add_dai_link); +EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); -/** - * 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) +static int soc_init_pcm_runtime(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd) { - struct snd_soc_dai_link *link, *_link; + struct snd_soc_dai_link *dai_link = rtd->dai_link; + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + int ret; - 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; - } + /* do machine specific initialization */ + ret = snd_soc_link_init(rtd); + if (ret < 0) + return ret; - 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); + snd_soc_runtime_get_dai_fmt(rtd); + ret = snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); + if (ret) + goto err; - for_each_card_links_safe(card, link, _link) { - if (link == dai_link) { - list_del(&link->list); - return; - } + /* add DPCM sysfs entries */ + soc_dpcm_debugfs_add(rtd); + + /* create compress_device if possible */ + ret = snd_soc_dai_compress_new(cpu_dai, rtd); + if (ret != -ENOTSUPP) + goto err; + + /* create the pcm */ + ret = soc_new_pcm(rtd); + if (ret < 0) { + dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", + dai_link->stream_name, ret); + goto err; } -} -EXPORT_SYMBOL_GPL(snd_soc_remove_dai_link); -static void soc_set_of_name_prefix(struct snd_soc_component *component) -{ - struct device_node *component_of_node = component->dev->of_node; - const char *str; - int ret; + ret = snd_soc_pcm_dai_new(rtd); + if (ret < 0) + goto err; - if (!component_of_node && component->dev->parent) - component_of_node = component->dev->parent->of_node; + rtd->initialized = true; - ret = of_property_read_string(component_of_node, "sound-name-prefix", - &str); - if (!ret) - component->name_prefix = str; + return 0; +err: + snd_soc_link_exit(rtd); + return ret; } static void soc_set_name_prefix(struct snd_soc_card *card, struct snd_soc_component *component) { - int i; + struct device_node *of_node = soc_component_to_node(component); + const char *str; + int ret, i; - for (i = 0; i < card->num_configs && card->codec_conf; i++) { + for (i = 0; i < card->num_configs; i++) { struct snd_soc_codec_conf *map = &card->codec_conf[i]; - struct device_node *component_of_node = component->dev->of_node; - - if (!component_of_node && component->dev->parent) - component_of_node = component->dev->parent->of_node; - if (map->of_node && component_of_node != map->of_node) - continue; - if (map->dev_name && strcmp(component->name, map->dev_name)) - continue; - component->name_prefix = map->name_prefix; - return; + if (snd_soc_is_matching_component(&map->dlc, component) && + map->name_prefix) { + component->name_prefix = map->name_prefix; + return; + } } /* * If there is no configuration table or no match in the table, * check if a prefix is provided in the node */ - soc_set_of_name_prefix(component); + ret = of_property_read_string(of_node, "sound-name-prefix", &str); + if (ret < 0) + return; + + component->name_prefix = str; +} + +static void soc_remove_component(struct snd_soc_component *component, + int probed) +{ + + if (!component->card) + return; + + if (probed) + snd_soc_component_remove(component); + + list_del_init(&component->card_list); + snd_soc_dapm_free(snd_soc_component_to_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_component *component) + struct snd_soc_component *component) { - struct snd_soc_dapm_context *dapm = - snd_soc_component_get_dapm(component); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); struct snd_soc_dai *dai; + int probed = 0; int ret; - if (!strcmp(component->name, "snd-soc-dummy")) + if (snd_soc_component_is_dummy(component)) return 0; if (component->card) { if (component->card != card) { dev_err(component->dev, - "Trying to bind component to card \"%s\" but is already bound to card \"%s\"\n", - card->name, component->card->name); + "Trying to bind component \"%s\" to card \"%s\" but is already bound to card \"%s\"\n", + component->name, card->name, component->card->name); return -ENODEV; } return 0; } - if (!try_module_get(component->dev->driver->owner)) - return -ENODEV; + ret = snd_soc_component_module_get_when_probe(component); + if (ret < 0) + return ret; component->card = card; - dapm->card = card; soc_set_name_prefix(card, component); soc_init_component_debugfs(component); - if (component->driver->dapm_widgets) { - ret = snd_soc_dapm_new_controls(dapm, + snd_soc_dapm_init(dapm, card, component); + + ret = snd_soc_dapm_new_controls(dapm, component->driver->dapm_widgets, component->driver->num_dapm_widgets); - if (ret != 0) { - dev_err(component->dev, - "Failed to create new controls %d\n", ret); - goto err_probe; - } + if (ret != 0) { + dev_err(component->dev, + "Failed to create new controls %d\n", ret); + goto err_probe; } for_each_component_dais(component, dai) { @@ -1334,103 +1651,70 @@ static int soc_probe_component(struct snd_soc_card *card, } } - if (component->driver->probe) { - ret = component->driver->probe(component); - if (ret < 0) { - dev_err(component->dev, - "ASoC: failed to probe component %d\n", ret); - goto err_probe; - } + ret = snd_soc_component_probe(component); + if (ret < 0) + goto err_probe; - WARN(dapm->idle_bias_off && - dapm->bias_level != SND_SOC_BIAS_OFF, - "codec %s can not start from non-off bias with idle_bias_off==1\n", - component->name); - } + WARN(!snd_soc_dapm_get_idle_bias(dapm) && + snd_soc_dapm_get_bias_level(dapm) != 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) { - ret = component->init(component); - if (ret < 0) { - dev_err(component->dev, - "Failed to do machine specific init %d\n", ret); - goto err_probe; - } - } + /* + * machine specific init + * see + * snd_soc_component_set_aux() + */ + ret = snd_soc_component_init(component); + if (ret < 0) + goto err_probe; - if (component->driver->controls) - snd_soc_add_component_controls(component, - component->driver->controls, - component->driver->num_controls); - if (component->driver->dapm_routes) - snd_soc_dapm_add_routes(dapm, - component->driver->dapm_routes, - component->driver->num_dapm_routes); + ret = snd_soc_add_component_controls(component, + component->driver->controls, + component->driver->num_controls); + if (ret < 0) + goto err_probe; + + ret = snd_soc_dapm_add_routes(dapm, + component->driver->dapm_routes, + component->driver->num_dapm_routes); + if (ret < 0) + goto err_probe; - list_add(&dapm->list, &card->dapm_list); /* see for_each_card_components */ list_add(&component->card_list, &card->component_dev_list); - return 0; - err_probe: - soc_cleanup_component_debugfs(component); - component->card = NULL; - module_put(component->dev->driver->owner); + if (ret < 0) + soc_remove_component(component, probed); return ret; } -static void rtd_release(struct device *dev) -{ - kfree(dev); -} - -static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, - const char *name) +static void soc_remove_link_dais(struct snd_soc_card *card) { - int ret = 0; + struct snd_soc_pcm_runtime *rtd; + int order; - /* register the rtd device */ - rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); - if (!rtd->dev) - return -ENOMEM; - device_initialize(rtd->dev); - rtd->dev->parent = rtd->card->dev; - rtd->dev->release = rtd_release; - rtd->dev->groups = soc_dev_attr_groups; - dev_set_name(rtd->dev, "%s", name); - dev_set_drvdata(rtd->dev, rtd); - mutex_init(&rtd->pcm_mutex); - 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_add(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; + for_each_comp_order(order) { + for_each_card_rtds(card, rtd) { + /* remove all rtd connected DAIs in good order */ + snd_soc_pcm_dai_remove(rtd, order); + } } - rtd->dev_registered = 1; - return 0; } -static int soc_probe_link_components(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, int order) +static int soc_probe_link_dais(struct snd_soc_card *card) { - struct snd_soc_component *component; - struct snd_soc_rtdcom_list *rtdcom; - int ret; - - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; + struct snd_soc_pcm_runtime *rtd; + int order, ret; - if (component->driver->probe_order == order) { - ret = soc_probe_component(card, component); - if (ret < 0) + for_each_comp_order(order) { + for_each_card_rtds(card, rtd) { + /* probe all rtd connected DAIs in good order */ + ret = snd_soc_pcm_dai_probe(rtd, order); + if (ret) return ret; } } @@ -1438,210 +1722,91 @@ static int soc_probe_link_components(struct snd_soc_card *card, return 0; } -static int soc_probe_dai(struct snd_soc_dai *dai, int order) +static void soc_remove_link_components(struct snd_soc_card *card) { - if (dai->probed || - dai->driver->probe_order != order) - return 0; + struct snd_soc_component *component; + struct snd_soc_pcm_runtime *rtd; + int i, order; - if (dai->driver->probe) { - int ret = dai->driver->probe(dai); + for_each_comp_order(order) { + for_each_card_rtds(card, rtd) { + for_each_rtd_components(rtd, i, component) { + if (component->driver->remove_order != order) + continue; - if (ret < 0) { - dev_err(dai->dev, "ASoC: failed to probe DAI %s: %d\n", - dai->name, ret); - return ret; + soc_remove_component(component, 1); + } } } - - dai->probed = 1; - - return 0; } -static int soc_link_dai_pcm_new(struct snd_soc_dai **dais, int num_dais, - struct snd_soc_pcm_runtime *rtd) +static int soc_probe_link_components(struct snd_soc_card *card) { - int i, ret = 0; + struct snd_soc_component *component; + struct snd_soc_pcm_runtime *rtd; + int i, ret, order; - for (i = 0; i < num_dais; ++i) { - struct snd_soc_dai_driver *drv = dais[i]->driver; + for_each_comp_order(order) { + for_each_card_rtds(card, rtd) { + for_each_rtd_components(rtd, i, component) { + if (component->driver->probe_order != order) + continue; - if (drv->pcm_new) - ret = drv->pcm_new(rtd, dais[i]); - if (ret < 0) { - dev_err(dais[i]->dev, - "ASoC: Failed to bind %s with pcm device\n", - dais[i]->name); - return ret; + ret = soc_probe_component(card, component); + if (ret < 0) + return ret; + } } } return 0; } -static int soc_probe_link_dais(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd, int order) +static void soc_unbind_aux_dev(struct snd_soc_card *card) { - struct snd_soc_dai_link *dai_link = rtd->dai_link; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_rtdcom_list *rtdcom; - struct snd_soc_component *component; - struct snd_soc_dai *codec_dai; - int i, ret, num; - - dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", - card->name, rtd->num, order); - - /* set default power off timeout */ - rtd->pmdown_time = pmdown_time; - - ret = soc_probe_dai(cpu_dai, order); - if (ret) - return ret; - - /* probe the CODEC DAI */ - for_each_rtd_codec_dai(rtd, i, codec_dai) { - ret = soc_probe_dai(codec_dai, order); - if (ret) - return ret; - } - - /* complete DAI probe during last probe */ - if (order != SND_SOC_COMP_ORDER_LAST) - return 0; - - /* do machine specific initialization */ - if (dai_link->init) { - ret = dai_link->init(rtd); - if (ret < 0) { - dev_err(card->dev, "ASoC: failed to init %s: %d\n", - dai_link->name, ret); - return ret; - } - } - - if (dai_link->dai_fmt) - snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt); - - ret = soc_post_component_init(rtd, dai_link->name); - if (ret) - return ret; + struct snd_soc_component *component, *_component; -#ifdef CONFIG_DEBUG_FS - /* add DPCM sysfs entries */ - if (dai_link->dynamic) - soc_dpcm_debugfs_add(rtd); -#endif - - num = rtd->num; - - /* - * most drivers will register their PCMs using DAI link ordering but - * 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; - - if (!component->driver->use_dai_pcm_id) - continue; - - if (rtd->dai_link->no_pcm) - num += component->driver->be_pcm_base; - else - num = rtd->dai_link->id; + for_each_card_auxs_safe(card, component, _component) { + /* for snd_soc_component_init() */ + snd_soc_component_set_aux(component, NULL); + list_del(&component->card_aux_list); } - - if (cpu_dai->driver->compress_new) { - /* create compress_device" */ - ret = cpu_dai->driver->compress_new(rtd, num); - if (ret < 0) { - dev_err(card->dev, "ASoC: can't create compress %s\n", - dai_link->stream_name); - return ret; - } - } else { - - if (!dai_link->params) { - /* create the pcm */ - ret = soc_new_pcm(rtd, num); - if (ret < 0) { - dev_err(card->dev, "ASoC: can't create pcm %s :%d\n", - dai_link->stream_name, ret); - return ret; - } - ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); - if (ret < 0) - return ret; - ret = soc_link_dai_pcm_new(rtd->codec_dais, - rtd->num_codecs, rtd); - if (ret < 0) - return ret; - } else { - INIT_DELAYED_WORK(&rtd->delayed_work, - codec2codec_close_delayed_work); - } - } - - return 0; } -static int soc_bind_aux_dev(struct snd_soc_card *card, int num) +static int soc_bind_aux_dev(struct snd_soc_card *card) { - struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; struct snd_soc_component *component; - const char *name; - struct device_node *codec_of_node; + struct snd_soc_aux_dev *aux; + int i; - if (aux_dev->codec_of_node || aux_dev->codec_name) { + for_each_card_pre_auxs(card, i, aux) { /* codecs, usually analog devices */ - name = aux_dev->codec_name; - codec_of_node = aux_dev->codec_of_node; - component = soc_find_component(codec_of_node, name); - if (!component) { - if (codec_of_node) - name = of_node_full_name(codec_of_node); - goto err_defer; - } - } else if (aux_dev->name) { - /* generic components */ - name = aux_dev->name; - component = soc_find_component(NULL, name); + component = soc_find_component(&aux->dlc); if (!component) - goto err_defer; - } else { - dev_err(card->dev, "ASoC: Invalid auxiliary device\n"); - return -EINVAL; - } - - component->init = aux_dev->init; - list_add(&component->card_aux_list, &card->aux_comp_list); + return -EPROBE_DEFER; + /* for snd_soc_component_init() */ + snd_soc_component_set_aux(component, aux); + /* see for_each_card_auxs */ + list_add(&component->card_aux_list, &card->aux_comp_list); + } return 0; - -err_defer: - dev_err(card->dev, "ASoC: %s not registered\n", name); - return -EPROBE_DEFER; } 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) { - list_for_each_entry(comp, &card->aux_comp_list, card_aux_list) { - 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; } } @@ -1654,86 +1819,29 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) int order; for_each_comp_order(order) { - list_for_each_entry_safe(comp, _comp, - &card->aux_comp_list, card_aux_list) { - - if (comp->driver->remove_order == order) { - soc_remove_component(comp); - /* remove it from the card's aux_comp_list */ - list_del(&comp->card_aux_list); - } + for_each_card_auxs_safe(card, comp, _comp) { + if (comp->driver->remove_order == order) + soc_remove_component(comp, 1); } } } -/** - * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime - * @rtd: The runtime for which the DAI link format should be changed - * @dai_fmt: The new DAI link format - * - * This function updates the DAI link format for all DAIs connected to the DAI - * link for the specified runtime. - * - * Note: For setups with a static format set the dai_fmt field in the - * corresponding snd_dai_link struct instead of using this function. - * - * Returns 0 on success, otherwise a negative error code. +#ifdef CONFIG_DMI +/* + * If a DMI filed contain strings in this blacklist (e.g. + * "Type2 - Board Manufacturer" or "Type1 - TBD by OEM"), it will be taken + * as invalid and dropped when setting the card long name from DMI info. */ -int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, - unsigned int dai_fmt) -{ - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai; - unsigned int i; - int ret; - - for_each_rtd_codec_dai(rtd, i, codec_dai) { - ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(codec_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; - } - } - - /* - * Flip the polarity for the "CPU" end of a CODEC<->CODEC link - * the component which has non_legacy_dai_naming is Codec - */ - if (cpu_dai->component->driver->non_legacy_dai_naming) { - unsigned int inv_dai_fmt; - - inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } - - dai_fmt = inv_dai_fmt; - } - - ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt); +static const char * const dmi_blacklist[] = { + "To be filled by OEM", + "TBD by OEM", + "Default String", + "Board Manufacturer", + "Board Vendor Name", + "Board Product Name", + NULL, /* terminator */ +}; -#ifdef CONFIG_DMI /* * Trim special characters, and replace '-' with '_' since '-' is used to * separate different DMI fields in the card long name. Only number and @@ -1771,13 +1879,29 @@ static int is_dmi_valid(const char *field) 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 - * @flavour: The flavour "differentiator" for the card amongst its peers. * * An Intel machine driver may be used by many different devices but are - * difficult for userspace to differentiate, since machine drivers ususally + * difficult for userspace to differentiate, since machine drivers usually * use their own name as the card short name and leave the card long name * blank. To differentiate such devices and fix bugs due to lack of * device-specific configurations, this function allows DMI info to be used @@ -1798,92 +1922,64 @@ static int is_dmi_valid(const char *field) * We only keep number and alphabet characters and a few separator characters * in the card long name since UCM in the user space uses the card long names * as card configuration directory names and AudoConf cannot support special - * charactors like SPACE. + * characters like SPACE. * * Returns 0 on success, otherwise a negative error code. */ -int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour) +static int snd_soc_set_dmi_name(struct snd_soc_card *card) { - const char *vendor, *product, *product_version, *board; - size_t longname_buf_size = sizeof(card->snd_card->longname); - size_t len; + const char *vendor, *product, *board; 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 */ + if (!dmi_available) + return 0; + + /* 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); + const char *product_version = dmi_get_system_info(DMI_PRODUCT_VERSION); - 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); + if (!product || strcasecmp(board, product)) + 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"); return 0; } - /* 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); - } - /* set the card long name */ card->long_name = card->dmi_longname; return 0; } -EXPORT_SYMBOL_GPL(snd_soc_set_dmi_name); +#else +static inline int snd_soc_set_dmi_name(struct snd_soc_card *card) +{ + return 0; +} #endif /* CONFIG_DMI */ static void soc_check_tplg_fes(struct snd_soc_card *card) @@ -1895,15 +1991,18 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) for_each_component(component) { - /* does this component override FEs ? */ + /* does this component override BEs ? */ if (!component->driver->ignore_machine) continue; /* for this machine ? */ + if (!strcmp(component->driver->ignore_machine, + card->dev->driver->name)) + goto match; if (strcmp(component->driver->ignore_machine, - card->dev->driver->name)) + dev_name(card->dev))) continue; - +match: /* machine matches, so override the rtd data */ for_each_card_prelinks(card, i, dai_link) { @@ -1913,20 +2012,28 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) continue; } - dev_info(card->dev, "info: override FE DAI link %s\n", - card->dai_link[i].name); + dev_dbg(card->dev, "info: override BE DAI link %s\n", + card->dai_link[i].name); /* override platform component */ - if (snd_soc_init_platform(card, dai_link) < 0) { + if (!dai_link->platforms) { dev_err(card->dev, "init platform error"); continue; } - dai_link->platform->name = component->name; + + if (component->dev->of_node) + dai_link->platforms->of_node = component->dev->of_node; + else + dai_link->platforms->name = component->name; /* convert non BE into BE */ dai_link->no_pcm = 1; - /* override any BE fixups */ + /* + * override any BE fixups + * see + * snd_soc_link_be_hw_params_fixup() + */ dai_link->be_hw_params_fixup = component->driver->be_hw_params_fixup; @@ -1957,35 +2064,122 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) } } -static int snd_soc_instantiate_card(struct snd_soc_card *card) +#define soc_setup_card_name(card, name, name1, name2) \ + __soc_setup_card_name(card, name, sizeof(name), name1, name2) +static void __soc_setup_card_name(struct snd_soc_card *card, + char *name, int len, + const char *name1, const char *name2) +{ + const char *src = name1 ? name1 : name2; + int i; + + snprintf(name, len, "%s", src); + + if (name != card->snd_card->driver) + return; + + /* + * Name normalization (driver field) + * + * 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; + } + } + + /* + * The driver field should contain a valid string from the user view. + * The wrapping usually does not work so well here. Set a smaller string + * in the specific ASoC driver. + */ + if (strlen(src) > len - 1) + dev_err(card->dev, "ASoC: driver name too long '%s' -> '%s'\n", src, name); +} + +static void soc_cleanup_card_resources(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd, *n; + + if (card->snd_card) + snd_card_disconnect_sync(card->snd_card); + + snd_soc_dapm_shutdown(card); + + /* release machine specific resources */ + for_each_card_rtds(card, rtd) + if (rtd->initialized) + snd_soc_link_exit(rtd); + /* remove and free each DAI */ + soc_remove_link_dais(card); + soc_remove_link_components(card); + + for_each_card_rtds_safe(card, rtd, n) + snd_soc_remove_pcm_runtime(card, rtd); + + /* remove auxiliary devices */ + soc_remove_aux_devices(card); + soc_unbind_aux_dev(card); + + snd_soc_dapm_free(snd_soc_card_to_dapm(card)); + soc_cleanup_card_debugfs(card); + + /* remove the card */ + snd_soc_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) +{ + if (snd_soc_card_is_instantiated(card)) { + card->instantiated = false; + snd_soc_flush_all_delayed_work(card); + + soc_cleanup_card_resources(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, order; + struct snd_soc_component *component; + struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); + int ret; - mutex_lock(&client_mutex); - mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); + snd_soc_card_mutex_lock_root(card); + snd_soc_fill_dummy_dai(card); + + snd_soc_dapm_init(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 base_error; - } - /* bind aux_devs too */ - for (i = 0; i < card->num_aux_devs; i++) { - ret = soc_bind_aux_dev(card, i); - if (ret != 0) - goto base_error; - } + ret = soc_bind_aux_dev(card); + if (ret < 0) + goto probe_end; /* add predefined DAI links to the list */ - for_each_card_prelinks(card, i, dai_link) - snd_soc_add_dai_link(card, dai_link); + card->num_rtd = 0; + ret = snd_soc_add_pcm_runtimes(card, card->dai_link, card->num_links); + if (ret < 0) + goto probe_end; /* card bind complete so register a sound card */ ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, @@ -1994,168 +2188,170 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: can't create sound card for card %s: %d\n", card->name, ret); - goto base_error; + goto probe_end; } soc_init_card_debugfs(card); - card->dapm.bias_level = SND_SOC_BIAS_OFF; - card->dapm.dev = card->dev; - card->dapm.card = card; - list_add(&card->dapm.list, &card->dapm_list); - -#ifdef CONFIG_DEBUG_FS - snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); -#endif - -#ifdef CONFIG_PM_SLEEP - /* deferred resume work */ - INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); -#endif + soc_resume_init(card); - if (card->dapm_widgets) - snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, - card->num_dapm_widgets); + ret = snd_soc_dapm_new_controls(dapm, card->dapm_widgets, + card->num_dapm_widgets); + if (ret < 0) + goto probe_end; - if (card->of_dapm_widgets) - snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, - card->num_of_dapm_widgets); + ret = snd_soc_dapm_new_controls(dapm, card->of_dapm_widgets, + card->num_of_dapm_widgets); + if (ret < 0) + goto probe_end; /* initialise the sound card only once */ - if (card->probe) { - ret = card->probe(card); - if (ret < 0) - goto card_probe_error; - } + ret = snd_soc_card_probe(card); + if (ret < 0) + goto probe_end; /* probe all components used by DAI links on this card */ - for_each_comp_order(order) { - for_each_card_rtds(card, rtd) { - ret = soc_probe_link_components(card, rtd, order); - if (ret < 0) { - dev_err(card->dev, - "ASoC: failed to instantiate card %d\n", - ret); - goto probe_dai_err; - } + ret = soc_probe_link_components(card); + if (ret < 0) { + if (ret != -EPROBE_DEFER) { + dev_err(card->dev, + "ASoC: failed to instantiate card %d\n", ret); } + goto probe_end; } /* probe auxiliary components */ ret = soc_probe_aux_devices(card); - if (ret < 0) - goto probe_dai_err; - - /* - * 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_dai_err; - ret = soc_bind_dai_link(card, dai_link); - if (ret) - goto probe_dai_err; + if (ret < 0) { + dev_err(card->dev, + "ASoC: failed to probe aux component %d\n", ret); + goto probe_end; } /* probe all DAI links on this card */ - for_each_comp_order(order) { - for_each_card_rtds(card, rtd) { - ret = soc_probe_link_dais(card, rtd, order); - if (ret < 0) { - dev_err(card->dev, - "ASoC: failed to instantiate card %d\n", - ret); - goto probe_dai_err; - } - } + ret = soc_probe_link_dais(card); + if (ret < 0) { + dev_err(card->dev, + "ASoC: failed to instantiate card %d\n", ret); + goto probe_end; + } + + for_each_card_rtds(card, rtd) { + ret = soc_init_pcm_runtime(card, rtd); + if (ret < 0) + goto probe_end; } snd_soc_dapm_link_dai_widgets(card); snd_soc_dapm_connect_dai_link_widgets(card); - if (card->controls) - snd_soc_add_card_controls(card, card->controls, - card->num_controls); + ret = snd_soc_add_card_controls(card, card->controls, + card->num_controls); + if (ret < 0) + goto probe_end; - if (card->dapm_routes) - snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, - card->num_dapm_routes); + ret = snd_soc_dapm_add_routes(dapm, card->dapm_routes, + card->num_dapm_routes); + if (ret < 0) + goto probe_end; - if (card->of_dapm_routes) - snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, - card->num_of_dapm_routes); + ret = snd_soc_dapm_add_routes(dapm, card->of_dapm_routes, + card->num_of_dapm_routes); + if (ret < 0) + goto probe_end; /* 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; - } - } - - if (card->late_probe) { - ret = card->late_probe(card); + snd_soc_set_dmi_name(card); + + soc_setup_card_name(card, card->snd_card->shortname, + card->name, NULL); + soc_setup_card_name(card, card->snd_card->longname, + card->long_name, card->name); + soc_setup_card_name(card, card->snd_card->driver, + card->driver_name, card->name); + + 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 late_probe() failed: %d\n", + dev_err(card->dev, "ASoC: %s snd_component_add() failed: %d\n", card->name, ret); - goto probe_aux_dev_err; + goto probe_end; } } + ret = snd_soc_card_late_probe(card); + if (ret < 0) + goto probe_end; + snd_soc_dapm_new_widgets(card); + snd_soc_card_fixup_controls(card); ret = snd_card_register(card->snd_card); if (ret < 0) { dev_err(card->dev, "ASoC: failed to register soundcard %d\n", ret); - goto probe_aux_dev_err; + goto probe_end; } card->instantiated = 1; - dapm_mark_endpoints_dirty(card); - snd_soc_dapm_sync(&card->dapm); - mutex_unlock(&card->mutex); - mutex_unlock(&client_mutex); + snd_soc_dapm_mark_endpoints_dirty(card); + snd_soc_dapm_sync(dapm); - return 0; + /* deactivate pins to sleep state */ + for_each_card_components(card, component) + if (!snd_soc_component_active(component)) + pinctrl_pm_select_sleep_state(component->dev); -probe_aux_dev_err: - soc_remove_aux_devices(card); +probe_end: + if (ret < 0) + soc_cleanup_card_resources(card); + snd_soc_card_mutex_unlock(card); -probe_dai_err: - soc_remove_dai_links(card); + return ret; +} -card_probe_error: - if (card->remove) - card->remove(card); +static void devm_card_bind_release(struct device *dev, void *res) +{ + snd_soc_unregister_card(*(struct snd_soc_card **)res); +} - snd_soc_dapm_free(&card->dapm); - soc_cleanup_card_debugfs(card); - snd_card_free(card->snd_card); +static int devm_snd_soc_bind_card(struct device *dev, struct snd_soc_card *card) +{ + struct snd_soc_card **ptr; + int ret; -base_error: - soc_remove_pcm_runtimes(card); - mutex_unlock(&card->mutex); - mutex_unlock(&client_mutex); + ptr = devres_alloc(devm_card_bind_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = snd_soc_bind_card(card); + if (ret == 0 || ret == -EPROBE_DEFER) { + *ptr = card; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} + +static int snd_soc_rebind_card(struct snd_soc_card *card) +{ + int ret; + + if (card->devres_dev) { + devres_destroy(card->devres_dev, devm_card_bind_release, NULL, NULL); + ret = devm_snd_soc_bind_card(card->devres_dev, card); + } else { + ret = snd_soc_bind_card(card); + } + + if (ret != -EPROBE_DEFER) + list_del_init(&card->list); return ret; } @@ -2179,74 +2375,28 @@ static int soc_probe(struct platform_device *pdev) /* Bodge while we unpick instantiation */ card->dev = &pdev->dev; - return snd_soc_register_card(card); -} - -static int soc_cleanup_card_resources(struct snd_soc_card *card) -{ - struct snd_soc_pcm_runtime *rtd; - - /* make sure any delayed work runs */ - for_each_card_rtds(card, rtd) - flush_delayed_work(&rtd->delayed_work); - - /* free the ALSA card at first; this syncs with pending operations */ - snd_card_free(card->snd_card); - - /* remove and free each DAI */ - soc_remove_dai_links(card); - soc_remove_pcm_runtimes(card); - - /* remove auxiliary devices */ - soc_remove_aux_devices(card); - - snd_soc_dapm_free(&card->dapm); - soc_cleanup_card_debugfs(card); - - /* remove the card */ - if (card->remove) - card->remove(card); - - return 0; -} - -/* removes a socdev */ -static int soc_remove(struct platform_device *pdev) -{ - struct snd_soc_card *card = platform_get_drvdata(pdev); - - snd_soc_unregister_card(card); - return 0; + return devm_snd_soc_register_card(&pdev->dev, card); } int snd_soc_poweroff(struct device *dev) { struct snd_soc_card *card = dev_get_drvdata(dev); - struct snd_soc_pcm_runtime *rtd; + struct snd_soc_component *component; - if (!card->instantiated) + if (!snd_soc_card_is_instantiated(card)) return 0; /* * Flush out pmdown_time work - we actually do want to run it * now, we're shutting down so no imminent restart. */ - for_each_card_rtds(card, rtd) - flush_delayed_work(&rtd->delayed_work); + snd_soc_flush_all_delayed_work(card); snd_soc_dapm_shutdown(card); /* 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 i; - - pinctrl_pm_select_sleep_state(cpu_dai->dev); - for_each_rtd_codec_dai(rtd, i, codec_dai) { - pinctrl_pm_select_sleep_state(codec_dai->dev); - } - } + for_each_card_components(card, component) + pinctrl_pm_select_sleep_state(component->dev); return 0; } @@ -2269,7 +2419,6 @@ static struct platform_driver soc_driver = { .pm = &snd_soc_pm_ops, }, .probe = soc_probe, - .remove = soc_remove, }; /** @@ -2319,13 +2468,12 @@ static int snd_soc_add_controls(struct snd_card *card, struct device *dev, const struct snd_kcontrol_new *controls, int num_controls, const char *prefix, void *data) { - int err, i; + int 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, data, - control->name, prefix)); + int err = snd_ctl_add(card, snd_soc_cnew(control, data, + control->name, prefix)); if (err < 0) { dev_err(dev, "ASoC: Failed to add %s: %d\n", control->name, err); @@ -2336,22 +2484,6 @@ static int snd_soc_add_controls(struct snd_card *card, struct device *dev, return 0; } -struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, - const char *name) -{ - struct snd_card *card = soc_card->snd_card; - struct snd_kcontrol *kctl; - - if (unlikely(!name)) - return NULL; - - list_for_each_entry(kctl, &card->controls, list) - if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) - return kctl; - return NULL; -} -EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol); - /** * snd_soc_add_component_controls - Add an array of controls to a component. * @@ -2393,7 +2525,7 @@ EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); /** * snd_soc_add_dai_controls - add an array of controls to a DAI. - * Convienience function to add a list of controls. + * Convenience function to add a list of controls. * * @dai: DAI to add controls to * @controls: array of controls to add @@ -2412,320 +2544,6 @@ int snd_soc_add_dai_controls(struct snd_soc_dai *dai, EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); /** - * snd_soc_dai_set_sysclk - configure DAI system or master clock. - * @dai: DAI - * @clk_id: DAI specific clock ID - * @freq: new clock frequency in Hz - * @dir: new clock direction - input/output. - * - * Configures the DAI master (MCLK) or system (SYSCLK) clocking. - */ -int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, - unsigned int freq, int dir) -{ - if (dai->driver->ops->set_sysclk) - return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); - - return snd_soc_component_set_sysclk(dai->component, clk_id, 0, - freq, dir); -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); - -/** - * snd_soc_component_set_sysclk - configure COMPONENT system or master clock. - * @component: COMPONENT - * @clk_id: DAI specific clock ID - * @source: Source for the clock - * @freq: new clock frequency in Hz - * @dir: new clock direction - input/output. - * - * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. - */ -int snd_soc_component_set_sysclk(struct snd_soc_component *component, - int clk_id, int source, unsigned int freq, - int dir) -{ - if (component->driver->set_sysclk) - return component->driver->set_sysclk(component, clk_id, source, - freq, dir); - - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk); - -/** - * snd_soc_dai_set_clkdiv - configure DAI clock dividers. - * @dai: DAI - * @div_id: DAI specific clock divider ID - * @div: new clock divisor. - * - * Configures the clock dividers. This is used to derive the best DAI bit and - * frame clocks from the system or master clock. It's best to set the DAI bit - * and frame clocks as low as possible to save system power. - */ -int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, - int div_id, int div) -{ - if (dai->driver->ops->set_clkdiv) - return dai->driver->ops->set_clkdiv(dai, div_id, div); - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); - -/** - * snd_soc_dai_set_pll - configure DAI PLL. - * @dai: DAI - * @pll_id: DAI specific PLL ID - * @source: DAI specific source for the PLL - * @freq_in: PLL input clock frequency in Hz - * @freq_out: requested PLL output clock frequency in Hz - * - * Configures and enables PLL to generate output clock based on input clock. - */ -int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, - unsigned int freq_in, unsigned int freq_out) -{ - if (dai->driver->ops->set_pll) - return dai->driver->ops->set_pll(dai, pll_id, source, - freq_in, freq_out); - - return snd_soc_component_set_pll(dai->component, pll_id, source, - freq_in, freq_out); -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); - -/* - * snd_soc_component_set_pll - configure component PLL. - * @component: COMPONENT - * @pll_id: DAI specific PLL ID - * @source: DAI specific source for the PLL - * @freq_in: PLL input clock frequency in Hz - * @freq_out: requested PLL output clock frequency in Hz - * - * Configures and enables PLL to generate output clock based on input clock. - */ -int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id, - int source, unsigned int freq_in, - unsigned int freq_out) -{ - if (component->driver->set_pll) - return component->driver->set_pll(component, pll_id, source, - freq_in, freq_out); - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(snd_soc_component_set_pll); - -/** - * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. - * @dai: DAI - * @ratio: Ratio of BCLK to Sample rate. - * - * Configures the DAI for a preset BCLK to sample rate ratio. - */ -int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) -{ - if (dai->driver->ops->set_bclk_ratio) - return dai->driver->ops->set_bclk_ratio(dai, ratio); - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); - -/** - * snd_soc_dai_set_fmt - configure DAI hardware audio format. - * @dai: DAI - * @fmt: SND_SOC_DAIFMT_* format value. - * - * Configures the DAI hardware format and clocking. - */ -int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) -{ - if (dai->driver->ops->set_fmt == NULL) - return -ENOTSUPP; - return dai->driver->ops->set_fmt(dai, fmt); -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); - -/** - * snd_soc_xlate_tdm_slot - generate tx/rx slot mask. - * @slots: Number of slots in use. - * @tx_mask: bitmask representing active TX slots. - * @rx_mask: bitmask representing active RX slots. - * - * Generates the TDM tx and rx slot default masks for DAI. - */ -static int snd_soc_xlate_tdm_slot_mask(unsigned int slots, - unsigned int *tx_mask, - unsigned int *rx_mask) -{ - if (*tx_mask || *rx_mask) - return 0; - - if (!slots) - return -EINVAL; - - *tx_mask = (1 << slots) - 1; - *rx_mask = (1 << slots) - 1; - - return 0; -} - -/** - * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation - * @dai: The DAI to configure - * @tx_mask: bitmask representing active TX slots. - * @rx_mask: bitmask representing active RX slots. - * @slots: Number of slots in use. - * @slot_width: Width in bits for each slot. - * - * This function configures the specified DAI for TDM operation. @slot contains - * the total number of slots of the TDM stream and @slot_with the width of each - * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the - * active slots of the TDM stream for the specified DAI, i.e. which slots the - * DAI should write to or read from. If a bit is set the corresponding slot is - * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to - * the first slot, bit 1 to the second slot and so on. The first active slot - * maps to the first channel of the DAI, the second active slot to the second - * channel and so on. - * - * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, - * @rx_mask and @slot_width will be ignored. - * - * Returns 0 on success, a negative error code otherwise. - */ -int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, - unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) -{ - if (dai->driver->ops->xlate_tdm_slot_mask) - dai->driver->ops->xlate_tdm_slot_mask(slots, - &tx_mask, &rx_mask); - else - snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); - - dai->tx_mask = tx_mask; - dai->rx_mask = rx_mask; - - if (dai->driver->ops->set_tdm_slot) - return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, - slots, slot_width); - else - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); - -/** - * snd_soc_dai_set_channel_map - configure DAI audio channel map - * @dai: DAI - * @tx_num: how many TX channels - * @tx_slot: pointer to an array which imply the TX slot number channel - * 0~num-1 uses - * @rx_num: how many RX channels - * @rx_slot: pointer to an array which imply the RX slot number channel - * 0~num-1 uses - * - * configure the relationship between channel number and TDM slot number. - */ -int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, - unsigned int tx_num, unsigned int *tx_slot, - unsigned int rx_num, unsigned int *rx_slot) -{ - if (dai->driver->ops->set_channel_map) - return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, - rx_num, rx_slot); - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); - -/** - * snd_soc_dai_get_channel_map - Get DAI audio channel map - * @dai: DAI - * @tx_num: how many TX channels - * @tx_slot: pointer to an array which imply the TX slot number channel - * 0~num-1 uses - * @rx_num: how many RX channels - * @rx_slot: pointer to an array which imply the RX slot number channel - * 0~num-1 uses - */ -int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, - unsigned int *tx_num, unsigned int *tx_slot, - unsigned int *rx_num, unsigned int *rx_slot) -{ - if (dai->driver->ops->get_channel_map) - return dai->driver->ops->get_channel_map(dai, tx_num, tx_slot, - rx_num, rx_slot); - else - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map); - -/** - * snd_soc_dai_set_tristate - configure DAI system or master clock. - * @dai: DAI - * @tristate: tristate enable - * - * Tristates the DAI so that others can use it. - */ -int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) -{ - if (dai->driver->ops->set_tristate) - return dai->driver->ops->set_tristate(dai, tristate); - else - return -EINVAL; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); - -/** - * snd_soc_dai_digital_mute - configure DAI system or master clock. - * @dai: DAI - * @mute: mute enable - * @direction: stream to mute - * - * Mutes the DAI DAC. - */ -int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, - int direction) -{ - if (dai->driver->ops->mute_stream) - return dai->driver->ops->mute_stream(dai, mute, direction); - else if (direction == SNDRV_PCM_STREAM_PLAYBACK && - dai->driver->ops->digital_mute) - return dai->driver->ops->digital_mute(dai, mute); - else - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); - -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 * * @card: Card to register @@ -2733,54 +2551,45 @@ static int snd_soc_bind_card(struct snd_soc_card *card) */ int snd_soc_register_card(struct snd_soc_card *card) { - int i, ret; - struct snd_soc_dai_link *link; + int ret; if (!card->name || !card->dev) return -EINVAL; - for_each_card_prelinks(card, i, link) { - - ret = soc_init_dai_link(card, link); - if (ret) { - dev_err(card->dev, "ASoC: failed to init link %s\n", - link->name); - return ret; - } - } - dev_set_drvdata(card->dev, card); - snd_soc_initialize_card_lists(card); - - INIT_LIST_HEAD(&card->dai_link_list); - + INIT_LIST_HEAD(&card->widgets); + INIT_LIST_HEAD(&card->paths); + INIT_LIST_HEAD(&card->dapm_list); + INIT_LIST_HEAD(&card->aux_comp_list); + INIT_LIST_HEAD(&card->component_dev_list); + INIT_LIST_HEAD(&card->list); INIT_LIST_HEAD(&card->rtd_list); - card->num_rtd = 0; - INIT_LIST_HEAD(&card->dapm_dirty); INIT_LIST_HEAD(&card->dobj_list); + card->instantiated = 0; mutex_init(&card->mutex); mutex_init(&card->dapm_mutex); + mutex_init(&card->pcm_mutex); - return snd_soc_bind_card(card); -} -EXPORT_SYMBOL_GPL(snd_soc_register_card); + mutex_lock(&client_mutex); -static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) -{ - if (card->instantiated) { - card->instantiated = false; - snd_soc_dapm_shutdown(card); - soc_cleanup_card_resources(card); - if (!unregister) + if (card->devres_dev) { + ret = devm_snd_soc_bind_card(card->devres_dev, card); + if (ret == -EPROBE_DEFER) { list_add(&card->list, &unbind_card_list); + ret = 0; + } } else { - if (unregister) - list_del(&card->list); + ret = snd_soc_bind_card(card); } + + mutex_unlock(&client_mutex); + + return ret; } +EXPORT_SYMBOL_GPL(snd_soc_register_card); /** * snd_soc_unregister_card - Unregister a card with the ASoC core @@ -2788,12 +2597,13 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) * @card: Card to unregister * */ -int snd_soc_unregister_card(struct snd_soc_card *card) +void snd_soc_unregister_card(struct snd_soc_card *card) { - snd_soc_unbind_card(card, true); + mutex_lock(&client_mutex); + snd_soc_unbind_card(card); + list_del(&card->list); + mutex_unlock(&client_mutex); dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); - - return 0; } EXPORT_SYMBOL_GPL(snd_soc_unregister_card); @@ -2803,42 +2613,47 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_card); */ static char *fmt_single_name(struct device *dev, int *id) { - char *found, name[NAME_SIZE]; - int id1, id2; + const char *devname = dev_name(dev); + char *found, *name; + unsigned int id1, id2; + int __id; - if (dev_name(dev) == NULL) + if (devname == NULL) return NULL; - strlcpy(name, dev_name(dev), NAME_SIZE); + name = devm_kstrdup(dev, devname, GFP_KERNEL); + if (!name) + return NULL; /* are we a "%s.%d" name (platform and SPI components) */ found = strstr(name, dev->driver->name); if (found) { /* get ID */ - if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { + if (sscanf(&found[strlen(dev->driver->name)], ".%d", &__id) == 1) { /* discard ID from name if ID == -1 */ - if (*id == -1) + if (__id == -1) found[strlen(dev->driver->name)] = '\0'; } - } else { - /* I2C component devices are named "bus-addr" */ - if (sscanf(name, "%x-%x", &id1, &id2) == 2) { - char tmp[NAME_SIZE]; + /* I2C component devices are named "bus-addr" */ + } else if (sscanf(name, "%x-%x", &id1, &id2) == 2) { + + /* create unique ID number from I2C addr and bus */ + __id = ((id1 & 0xffff) << 16) + id2; - /* create unique ID number from I2C addr and bus */ - *id = ((id1 & 0xffff) << 16) + id2; + devm_kfree(dev, name); - /* sanitize component name for DAI link creation */ - snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, - name); - strlcpy(name, tmp, NAME_SIZE); - } else - *id = 0; + /* sanitize component name for DAI link creation */ + name = devm_kasprintf(dev, GFP_KERNEL, "%s.%s", dev->driver->name, devname); + } else { + __id = 0; } - return kstrdup(name, GFP_KERNEL); + if (id) + *id = __id; + + return name; } /* @@ -2855,38 +2670,38 @@ static inline char *fmt_multiple_name(struct device *dev, 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 + * @legacy_dai_naming: if %true, use legacy single-name format; + * if %false, use multiple-name format; + * + * 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)); + lockdep_assert_held(&client_mutex); - dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); + dai = devm_kzalloc(dev, sizeof(*dai), GFP_KERNEL); if (dai == NULL) return NULL; @@ -2908,16 +2723,12 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, else dai->id = component->num_dai; } - if (dai->name == NULL) { - kfree(dai); + if (!dai->name) return NULL; - } dai->component = component; dai->dev = dev; dai->driver = dai_drv; - if (!dai->driver->ops) - dai->driver->ops = &null_dai_ops; /* see for_each_component_dais */ list_add_tail(&dai->list, &component->dai_list); @@ -2926,6 +2737,20 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component, dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); return dai; } +EXPORT_SYMBOL_GPL(snd_soc_register_dai); + +/** + * snd_soc_unregister_dais - 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 @@ -2938,17 +2763,13 @@ static int snd_soc_register_dais(struct snd_soc_component *component, 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 && - !component->driver->non_legacy_dai_naming); + dai = snd_soc_register_dai(component, dai_drv + i, count == 1 && + component->driver->legacy_dai_naming); if (dai == NULL) { ret = -ENOMEM; goto err; @@ -2963,191 +2784,6 @@ err: 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 void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm, - enum snd_soc_dapm_type type, int subseq) -{ - struct snd_soc_component *component = dapm->component; - - component->driver->seq_notifier(component, type, subseq); -} - -static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm, - int event) -{ - struct snd_soc_component *component = dapm->component; - - return component->driver->stream_event(component, event); -} - -static int snd_soc_component_set_bias_level(struct snd_soc_dapm_context *dapm, - enum snd_soc_bias_level level) -{ - struct snd_soc_component *component = dapm->component; - - return component->driver->set_bias_level(component, level); -} - -static int snd_soc_component_initialize(struct snd_soc_component *component, - const struct snd_soc_component_driver *driver, struct device *dev) -{ - struct snd_soc_dapm_context *dapm; - - component->name = fmt_single_name(dev, &component->id); - if (!component->name) { - dev_err(dev, "ASoC: Failed to allocate name\n"); - return -ENOMEM; - } - - component->dev = dev; - component->driver = driver; - - dapm = snd_soc_component_get_dapm(component); - dapm->dev = dev; - dapm->component = component; - dapm->bias_level = SND_SOC_BIAS_OFF; - dapm->idle_bias_off = !driver->idle_bias_on; - dapm->suspend_bias_off = driver->suspend_bias_off; - if (driver->seq_notifier) - dapm->seq_notifier = snd_soc_component_seq_notifier; - if (driver->stream_event) - dapm->stream_event = snd_soc_component_stream_event; - if (driver->set_bias_level) - dapm->set_bias_level = snd_soc_component_set_bias_level; - - INIT_LIST_HEAD(&component->dai_list); - mutex_init(&component->io_mutex); - - return 0; -} - -static void snd_soc_component_setup_regmap(struct snd_soc_component *component) -{ - int val_bytes = regmap_get_val_bytes(component->regmap); - - /* Errors are legitimate for non-integer byte multiples */ - if (val_bytes > 0) - component->val_bytes = val_bytes; -} - -#ifdef CONFIG_REGMAP - -/** - * snd_soc_component_init_regmap() - Initialize regmap instance for the - * component - * @component: The component for which to initialize the regmap instance - * @regmap: The regmap instance that should be used by the component - * - * This function allows deferred assignment of the regmap instance that is - * associated with the component. Only use this if the regmap instance is not - * yet ready when the component is registered. The function must also be called - * before the first IO attempt of the component. - */ -void snd_soc_component_init_regmap(struct snd_soc_component *component, - struct regmap *regmap) -{ - component->regmap = regmap; - snd_soc_component_setup_regmap(component); -} -EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap); - -/** - * snd_soc_component_exit_regmap() - De-initialize regmap instance for the - * component - * @component: The component for which to de-initialize the regmap instance - * - * Calls regmap_exit() on the regmap instance associated to the component and - * removes the regmap instance from the component. - * - * This function should only be used if snd_soc_component_init_regmap() was used - * to initialize the regmap instance. - */ -void snd_soc_component_exit_regmap(struct snd_soc_component *component) -{ - regmap_exit(component->regmap); - component->regmap = NULL; -} -EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); - -#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); - INIT_LIST_HEAD(&component->dobj_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[] = { @@ -3183,32 +2819,64 @@ static void convert_endianness_formats(struct snd_soc_pcm_stream *stream) stream->formats |= endianness_format_map[i]; } -static void snd_soc_try_rebind_card(void) +static void snd_soc_del_component_unlocked(struct snd_soc_component *component) { - struct snd_soc_card *card, *c; + struct snd_soc_card *card = component->card; + bool instantiated; - if (!list_empty(&unbind_card_list)) { - list_for_each_entry_safe(card, c, &unbind_card_list, list) { - if (!snd_soc_bind_card(card)) - list_del(&card->list); + snd_soc_unregister_dais(component); + + if (card) { + instantiated = card->instantiated; + snd_soc_unbind_card(card); + if (instantiated) + list_add(&card->list, &unbind_card_list); + } + + list_del(&component->list); +} + +int snd_soc_component_initialize(struct snd_soc_component *component, + const struct snd_soc_component_driver *driver, + struct device *dev) +{ + INIT_LIST_HEAD(&component->dai_list); + INIT_LIST_HEAD(&component->dobj_list); + INIT_LIST_HEAD(&component->card_list); + INIT_LIST_HEAD(&component->list); + mutex_init(&component->io_mutex); + + if (!component->name) { + component->name = fmt_single_name(dev, NULL); + if (!component->name) { + dev_err(dev, "ASoC: Failed to allocate name\n"); + return -ENOMEM; } } + + component->dev = dev; + component->driver = driver; + +#ifdef CONFIG_DEBUG_FS + if (!component->debugfs_prefix) + component->debugfs_prefix = driver->debugfs_prefix; +#endif + + return 0; } +EXPORT_SYMBOL_GPL(snd_soc_component_initialize); -int snd_soc_add_component(struct device *dev, - struct snd_soc_component *component, - const struct snd_soc_component_driver *component_driver, - struct snd_soc_dai_driver *dai_drv, - int num_dai) +int snd_soc_add_component(struct snd_soc_component *component, + struct snd_soc_dai_driver *dai_drv, + int num_dai) { + struct snd_soc_card *card, *c; int ret; int i; - ret = snd_soc_component_initialize(component, component_driver, dev); - if (ret) - goto err_free; + mutex_lock(&client_mutex); - if (component_driver->endianness) { + if (component->driver->endianness) { for (i = 0; i < num_dai; i++) { convert_endianness_formats(&dai_drv[i].playback); convert_endianness_formats(&dai_drv[i].capture); @@ -3217,18 +2885,30 @@ int snd_soc_add_component(struct device *dev, ret = snd_soc_register_dais(component, dai_drv, num_dai); if (ret < 0) { - dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); + dev_err(component->dev, "ASoC: Failed to register DAIs: %d\n", + ret); 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); + } + + /* see for_each_component */ + list_add(&component->list, &component_list); - return 0; + list_for_each_entry_safe(card, c, &unbind_card_list, list) + snd_soc_rebind_card(card); err_cleanup: - snd_soc_component_cleanup(component); -err_free: + if (ret < 0) + snd_soc_del_component_unlocked(component); + + mutex_unlock(&client_mutex); return ret; } EXPORT_SYMBOL_GPL(snd_soc_add_component); @@ -3239,78 +2919,47 @@ int snd_soc_register_component(struct device *dev, int num_dai) { struct snd_soc_component *component; + int ret; component = devm_kzalloc(dev, sizeof(*component), GFP_KERNEL); if (!component) return -ENOMEM; - return snd_soc_add_component(dev, component, component_driver, - dai_drv, num_dai); + ret = snd_soc_component_initialize(component, component_driver, dev); + if (ret < 0) + return ret; + + return snd_soc_add_component(component, dai_drv, num_dai); } EXPORT_SYMBOL_GPL(snd_soc_register_component); /** - * snd_soc_unregister_component - Unregister all related component + * snd_soc_unregister_component_by_driver - Unregister component using a given driver * from the ASoC core * * @dev: The device to unregister + * @component_driver: The component driver to unregister */ -static int __snd_soc_unregister_component(struct device *dev) +void snd_soc_unregister_component_by_driver(struct device *dev, + const struct snd_soc_component_driver *component_driver) { - struct snd_soc_component *component; - int found = 0; + const char *driver_name = NULL; - mutex_lock(&client_mutex); - for_each_component(component) { - if (dev != component->dev) - continue; + if (component_driver) + driver_name = component_driver->name; - 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; + while (1) { + struct snd_soc_component *component = snd_soc_lookup_component_nolocked(dev, driver_name); - if (driver_name && - (driver_name != component->driver->name) && - (strcmp(component->driver->name, driver_name) != 0)) - continue; + 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_by_driver); /* Retrieve a card's name from device tree */ int snd_soc_of_parse_card_name(struct snd_soc_card *card, @@ -3356,7 +3005,7 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, struct device_node *np = card->dev->of_node; struct snd_soc_dapm_widget *widgets; const char *template, *wname; - int i, j, num_widgets, ret; + int i, j, num_widgets; num_widgets = of_property_count_strings(np, propname); if (num_widgets < 0) { @@ -3364,6 +3013,11 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, "ASoC: Property '%s' does not exist\n", propname); return -EINVAL; } + if (!num_widgets) { + dev_err(card->dev, "ASoC: Property '%s's length is zero\n", + propname); + return -EINVAL; + } if (num_widgets & 1) { dev_err(card->dev, "ASoC: Property '%s' length is not even\n", propname); @@ -3371,11 +3025,6 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } num_widgets /= 2; - if (!num_widgets) { - dev_err(card->dev, "ASoC: Property '%s's length is zero\n", - propname); - return -EINVAL; - } widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets), GFP_KERNEL); @@ -3386,8 +3035,8 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } for (i = 0; i < num_widgets; i++) { - ret = of_property_read_string_index(np, propname, - 2 * i, &template); + int ret = of_property_read_string_index(np, propname, + 2 * i, &template); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d read error:%d\n", @@ -3430,6 +3079,56 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); +int snd_soc_of_parse_pin_switches(struct snd_soc_card *card, const char *prop) +{ + const unsigned int nb_controls_max = 16; + const char **strings, *control_name; + struct snd_kcontrol_new *controls; + struct device *dev = card->dev; + unsigned int i, nb_controls; + int ret; + + if (!of_property_present(dev->of_node, prop)) + return 0; + + strings = devm_kcalloc(dev, nb_controls_max, + sizeof(*strings), GFP_KERNEL); + if (!strings) + return -ENOMEM; + + ret = of_property_read_string_array(dev->of_node, prop, + strings, nb_controls_max); + if (ret < 0) + return ret; + + nb_controls = (unsigned int)ret; + + controls = devm_kcalloc(dev, nb_controls, + sizeof(*controls), GFP_KERNEL); + if (!controls) + return -ENOMEM; + + for (i = 0; i < nb_controls; i++) { + control_name = devm_kasprintf(dev, GFP_KERNEL, + "%s Switch", strings[i]); + if (!control_name) + return -ENOMEM; + + controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER; + controls[i].name = control_name; + controls[i].info = snd_soc_dapm_info_pin_switch; + controls[i].get = snd_soc_dapm_get_pin_switch; + controls[i].put = snd_soc_dapm_put_pin_switch; + controls[i].private_value = (unsigned long)strings[i]; + } + + card->controls = controls; + card->num_controls = nb_controls; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_pin_switches); + int snd_soc_of_get_slot_mask(struct device_node *np, const char *prop_name, unsigned int *mask) @@ -3463,28 +3162,30 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np, if (rx_mask) snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask); - if (of_property_read_bool(np, "dai-tdm-slot-num")) { - ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); - if (ret) - return ret; - - if (slots) - *slots = val; - } - - if (of_property_read_bool(np, "dai-tdm-slot-width")) { - ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); - if (ret) - return ret; + ret = of_property_read_u32(np, "dai-tdm-slot-num", &val); + if (ret && ret != -EINVAL) + return ret; + if (!ret && slots) + *slots = val; - if (slot_width) - *slot_width = val; - } + ret = of_property_read_u32(np, "dai-tdm-slot-width", &val); + if (ret && ret != -EINVAL) + return ret; + if (!ret && slot_width) + *slot_width = val; return 0; } EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); +void snd_soc_dlc_use_cpu_as_platform(struct snd_soc_dai_link_component *platforms, + struct snd_soc_dai_link_component *cpus) +{ + platforms->of_node = cpus->of_node; + platforms->dai_args = cpus->dai_args; +} +EXPORT_SYMBOL_GPL(snd_soc_dlc_use_cpu_as_platform); + void snd_soc_of_parse_node_prefix(struct device_node *np, struct snd_soc_codec_conf *codec_conf, struct device_node *of_node, @@ -3499,7 +3200,7 @@ void snd_soc_of_parse_node_prefix(struct device_node *np, return; } - codec_conf->of_node = of_node; + codec_conf->dlc.of_node = of_node; codec_conf->name_prefix = str; } EXPORT_SYMBOL_GPL(snd_soc_of_parse_node_prefix); @@ -3510,7 +3211,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, struct device_node *np = card->dev->of_node; int num_routes; struct snd_soc_dapm_route *routes; - int i, ret; + int i; num_routes = of_property_count_strings(np, propname); if (num_routes < 0 || num_routes & 1) { @@ -3520,23 +3221,18 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, return -EINVAL; } num_routes /= 2; - if (!num_routes) { - dev_err(card->dev, "ASoC: Property '%s's length is zero\n", - propname); - return -EINVAL; - } routes = devm_kcalloc(card->dev, num_routes, sizeof(*routes), GFP_KERNEL); if (!routes) { dev_err(card->dev, "ASoC: Could not allocate DAPM route table\n"); - return -EINVAL; + return -ENOMEM; } for (i = 0; i < num_routes; i++) { - ret = of_property_read_string_index(np, propname, - 2 * i, &routes[i].sink); + int ret = of_property_read_string_index(np, propname, + 2 * i, &routes[i].sink); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", @@ -3560,12 +3256,87 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); -unsigned int snd_soc_of_parse_daifmt(struct device_node *np, - const char *prefix, - struct device_node **bitclkmaster, - struct device_node **framemaster) +int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname) { - int ret, i; + struct device_node *node = card->dev->of_node; + struct snd_soc_aux_dev *aux; + int num, i; + + num = of_count_phandle_with_args(node, propname, NULL); + if (num == -ENOENT) { + return 0; + } else if (num < 0) { + dev_err(card->dev, "ASOC: Property '%s' could not be read: %d\n", + propname, num); + return num; + } + + aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL); + if (!aux) + return -ENOMEM; + card->aux_dev = aux; + card->num_aux_devs = num; + + for_each_card_pre_auxs(card, i, aux) { + aux->dlc.of_node = of_parse_phandle(node, propname, i); + if (!aux->dlc.of_node) + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_aux_devs); + +unsigned int snd_soc_daifmt_clock_provider_flipped(unsigned int dai_fmt) +{ + unsigned int inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; + + switch (dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBP_CFP: + inv_dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; + break; + case SND_SOC_DAIFMT_CBP_CFC: + inv_dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; + break; + case SND_SOC_DAIFMT_CBC_CFP: + inv_dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; + break; + case SND_SOC_DAIFMT_CBC_CFC: + inv_dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; + break; + } + + return inv_dai_fmt; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_clock_provider_flipped); + +unsigned int snd_soc_daifmt_clock_provider_from_bitmap(unsigned int bit_frame) +{ + /* + * bit_frame is return value from + * snd_soc_daifmt_parse_clock_provider_raw() + */ + + /* Codec base */ + switch (bit_frame) { + case 0x11: + return SND_SOC_DAIFMT_CBP_CFP; + case 0x10: + return SND_SOC_DAIFMT_CBP_CFC; + case 0x01: + return SND_SOC_DAIFMT_CBC_CFP; + default: + return SND_SOC_DAIFMT_CBC_CFC; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_clock_provider_from_bitmap); + +unsigned int snd_soc_daifmt_parse_format(struct device_node *np, + const char *prefix) +{ + int ret; char prop[128]; unsigned int format = 0; int bit, frame; @@ -3599,6 +3370,8 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, ret = of_property_read_string(np, prop, &str); } if (ret == 0) { + int i; + for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) { if (strcmp(str, of_fmt_table[i].name) == 0) { format |= of_fmt_table[i].val; @@ -3623,10 +3396,10 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, * SND_SOC_DAIFMT_INV_MASK area */ snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix); - bit = !!of_get_property(np, prop, NULL); + bit = of_property_read_bool(np, prop); snprintf(prop, sizeof(prop), "%sframe-inversion", prefix); - frame = !!of_get_property(np, prop, NULL); + frame = of_property_read_bool(np, prop); switch ((bit << 4) + frame) { case 0x11: @@ -3643,47 +3416,89 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, break; } + return format; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_parse_format); + +unsigned int snd_soc_daifmt_parse_clock_provider_raw(struct device_node *np, + const char *prefix, + struct device_node **bitclkmaster, + struct device_node **framemaster) +{ + char prop[128]; + unsigned int bit, frame; + + if (!np) + return 0; + + if (!prefix) + prefix = ""; + /* * check "[prefix]bitclock-master" * check "[prefix]frame-master" - * SND_SOC_DAIFMT_MASTER_MASK area */ snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); - bit = !!of_get_property(np, prop, NULL); + bit = of_property_present(np, prop); if (bit && bitclkmaster) *bitclkmaster = of_parse_phandle(np, prop, 0); snprintf(prop, sizeof(prop), "%sframe-master", prefix); - frame = !!of_get_property(np, prop, NULL); + frame = of_property_present(np, prop); if (frame && framemaster) *framemaster = of_parse_phandle(np, prop, 0); - switch ((bit << 4) + frame) { - case 0x11: - format |= SND_SOC_DAIFMT_CBM_CFM; - break; - case 0x10: - format |= SND_SOC_DAIFMT_CBM_CFS; - break; - case 0x01: - format |= SND_SOC_DAIFMT_CBS_CFM; - break; - default: - format |= SND_SOC_DAIFMT_CBS_CFS; - break; - } + /* + * return bitmap. + * It will be parameter of + * snd_soc_daifmt_clock_provider_from_bitmap() + */ + return (bit << 4) + frame; +} +EXPORT_SYMBOL_GPL(snd_soc_daifmt_parse_clock_provider_raw); - return format; +int snd_soc_get_stream_cpu(const struct snd_soc_dai_link *dai_link, int stream) +{ + /* + * [Normal] + * + * Playback + * CPU : SNDRV_PCM_STREAM_PLAYBACK + * Codec: SNDRV_PCM_STREAM_PLAYBACK + * + * Capture + * CPU : SNDRV_PCM_STREAM_CAPTURE + * Codec: SNDRV_PCM_STREAM_CAPTURE + */ + if (!dai_link->c2c_params) + return stream; + + /* + * [Codec2Codec] + * + * Playback + * CPU : SNDRV_PCM_STREAM_CAPTURE + * Codec: SNDRV_PCM_STREAM_PLAYBACK + * + * Capture + * CPU : SNDRV_PCM_STREAM_PLAYBACK + * Codec: SNDRV_PCM_STREAM_CAPTURE + */ + if (stream == SNDRV_PCM_STREAM_CAPTURE) + return SNDRV_PCM_STREAM_PLAYBACK; + + return SNDRV_PCM_STREAM_CAPTURE; } -EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); +EXPORT_SYMBOL_GPL(snd_soc_get_stream_cpu); int snd_soc_get_dai_id(struct device_node *ep) { - struct snd_soc_component *pos; - struct device_node *node; + struct snd_soc_component *component; + struct snd_soc_dai_link_component dlc = { + .of_node = of_graph_get_port_parent(ep), + }; int ret; - node = of_graph_get_port_parent(ep); /* * For example HDMI case, HDMI has video/sound port, @@ -3693,49 +3508,31 @@ int snd_soc_get_dai_id(struct device_node *ep) */ ret = -ENOTSUPP; mutex_lock(&client_mutex); - for_each_component(pos) { - struct device_node *component_of_node = pos->dev->of_node; - - if (!component_of_node && pos->dev->parent) - component_of_node = pos->dev->parent->of_node; - - if (component_of_node != node) - continue; - - if (pos->driver->of_xlate_dai_id) - ret = pos->driver->of_xlate_dai_id(pos, ep); - - break; - } + component = soc_find_component(&dlc); + if (component) + ret = snd_soc_component_of_xlate_dai_id(component, ep); mutex_unlock(&client_mutex); - of_node_put(node); + of_node_put(dlc.of_node); return ret; } EXPORT_SYMBOL_GPL(snd_soc_get_dai_id); -int snd_soc_get_dai_name(struct of_phandle_args *args, - const char **dai_name) +int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_component *dlc) { struct snd_soc_component *pos; - struct device_node *component_of_node; int ret = -EPROBE_DEFER; mutex_lock(&client_mutex); for_each_component(pos) { - component_of_node = pos->dev->of_node; - if (!component_of_node && pos->dev->parent) - component_of_node = pos->dev->parent->of_node; + struct device_node *component_of_node = soc_component_to_node(pos); - if (component_of_node != args->np) + if (component_of_node != args->np || !pos->num_dai) continue; - if (pos->driver->of_xlate_dai_name) { - ret = pos->driver->of_xlate_dai_name(pos, - args, - dai_name); - } else { + ret = snd_soc_component_of_xlate_dai_name(pos, args, &dlc->dai_name); + if (ret == -ENOTSUPP) { struct snd_soc_dai *dai; int id = -1; @@ -3765,37 +3562,127 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, id--; } - *dai_name = dai->driver->name; - if (!*dai_name) - *dai_name = pos->name; + dlc->dai_name = snd_soc_dai_name_get(dai); + } else if (ret) { + /* + * if another error than ENOTSUPP is returned go on and + * check if another component is provided with the same + * node. This may happen if a device provides several + * components + */ + continue; } break; } + + if (ret == 0) + dlc->of_node = args->np; + mutex_unlock(&client_mutex); return ret; } -EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); +EXPORT_SYMBOL_GPL(snd_soc_get_dlc); -int snd_soc_of_get_dai_name(struct device_node *of_node, - const char **dai_name) +int snd_soc_of_get_dlc(struct device_node *of_node, + struct of_phandle_args *args, + struct snd_soc_dai_link_component *dlc, + int index) { - struct of_phandle_args args; + struct of_phandle_args __args; int ret; + if (!args) + args = &__args; + ret = of_parse_phandle_with_args(of_node, "sound-dai", - "#sound-dai-cells", 0, &args); + "#sound-dai-cells", index, args); if (ret) return ret; - ret = snd_soc_get_dai_name(&args, dai_name); + return snd_soc_get_dlc(args, dlc); +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dlc); + +int snd_soc_get_dai_name(const struct of_phandle_args *args, + const char **dai_name) +{ + struct snd_soc_dai_link_component dlc; + int ret = snd_soc_get_dlc(args, &dlc); - of_node_put(args.np); + if (ret == 0) + *dai_name = dlc.dai_name; + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_get_dai_name); + +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name, int index) +{ + struct snd_soc_dai_link_component dlc; + int ret = snd_soc_of_get_dlc(of_node, NULL, &dlc, index); + + if (ret == 0) + *dai_name = dlc.dai_name; return ret; } EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); +struct snd_soc_dai *snd_soc_get_dai_via_args(const struct of_phandle_args *dai_args) +{ + struct snd_soc_dai *dai; + struct snd_soc_component *component; + + mutex_lock(&client_mutex); + for_each_component(component) { + for_each_component_dais(component, dai) + if (snd_soc_is_match_dai_args(dai->driver->dai_args, dai_args)) + goto found; + } + dai = NULL; +found: + mutex_unlock(&client_mutex); + return dai; +} +EXPORT_SYMBOL_GPL(snd_soc_get_dai_via_args); + +static void __snd_soc_of_put_component(struct snd_soc_dai_link_component *component) +{ + if (component->of_node) { + of_node_put(component->of_node); + component->of_node = NULL; + } +} + +static int __snd_soc_of_get_dai_link_component_alloc( + struct device *dev, struct device_node *of_node, + struct snd_soc_dai_link_component **ret_component, + int *ret_num) +{ + struct snd_soc_dai_link_component *component; + int num; + + /* Count the number of CPUs/CODECs */ + num = of_count_phandle_with_args(of_node, "sound-dai", "#sound-dai-cells"); + if (num <= 0) { + if (num == -ENOENT) + dev_err(dev, "No 'sound-dai' property\n"); + else + dev_err(dev, "Bad phandle in 'sound-dai'\n"); + return num; + } + component = devm_kcalloc(dev, num, sizeof(*component), GFP_KERNEL); + if (!component) + return -ENOMEM; + + *ret_component = component; + *ret_num = num; + + return 0; +} + /* * snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array * @dai_link: DAI link @@ -3807,12 +3694,8 @@ void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link) struct snd_soc_dai_link_component *component; int index; - for_each_link_codecs(dai_link, index, component) { - if (!component->of_node) - break; - of_node_put(component->of_node); - component->of_node = NULL; - } + for_each_link_codecs(dai_link, index, component) + __snd_soc_of_put_component(component); } EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_codecs); @@ -3834,41 +3717,19 @@ int snd_soc_of_get_dai_link_codecs(struct device *dev, struct device_node *of_node, struct snd_soc_dai_link *dai_link) { - struct of_phandle_args args; struct snd_soc_dai_link_component *component; - char *name; - int index, num_codecs, ret; - - /* Count the number of CODECs */ - name = "sound-dai"; - num_codecs = of_count_phandle_with_args(of_node, name, - "#sound-dai-cells"); - if (num_codecs <= 0) { - if (num_codecs == -ENOENT) - dev_err(dev, "No 'sound-dai' property\n"); - else - dev_err(dev, "Bad phandle in 'sound-dai'\n"); - return num_codecs; - } - component = devm_kcalloc(dev, - num_codecs, sizeof(*component), - GFP_KERNEL); - if (!component) - return -ENOMEM; - dai_link->codecs = component; - dai_link->num_codecs = num_codecs; + int index, ret; + + ret = __snd_soc_of_get_dai_link_component_alloc(dev, of_node, + &dai_link->codecs, &dai_link->num_codecs); + if (ret < 0) + return ret; /* Parse the list */ for_each_link_codecs(dai_link, index, component) { - ret = of_parse_phandle_with_args(of_node, name, - "#sound-dai-cells", - index, &args); + ret = snd_soc_of_get_dlc(of_node, NULL, component, index); if (ret) goto err; - component->of_node = args.np; - ret = snd_soc_get_dai_name(&args, &component->dai_name); - if (ret < 0) - goto err; } return 0; err: @@ -3879,12 +3740,80 @@ err: } EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); +/* + * snd_soc_of_put_dai_link_cpus - Dereference device nodes in the codecs array + * @dai_link: DAI link + * + * Dereference device nodes acquired by snd_soc_of_get_dai_link_cpus(). + */ +void snd_soc_of_put_dai_link_cpus(struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_component *component; + int index; + + for_each_link_cpus(dai_link, index, component) + __snd_soc_of_put_component(component); +} +EXPORT_SYMBOL_GPL(snd_soc_of_put_dai_link_cpus); + +/* + * snd_soc_of_get_dai_link_cpus - Parse a list of CPU DAIs in the devicetree + * @dev: Card device + * @of_node: Device node + * @dai_link: DAI link + * + * Is analogous to snd_soc_of_get_dai_link_codecs but parses a list of CPU DAIs + * instead. + * + * Returns 0 for success + */ +int snd_soc_of_get_dai_link_cpus(struct device *dev, + struct device_node *of_node, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_dai_link_component *component; + int index, ret; + + /* Count the number of CPUs */ + ret = __snd_soc_of_get_dai_link_component_alloc(dev, of_node, + &dai_link->cpus, &dai_link->num_cpus); + if (ret < 0) + return ret; + + /* Parse the list */ + for_each_link_cpus(dai_link, index, component) { + ret = snd_soc_of_get_dlc(of_node, NULL, component, index); + if (ret) + goto err; + } + return 0; +err: + snd_soc_of_put_dai_link_cpus(dai_link); + dai_link->cpus = NULL; + dai_link->num_cpus = 0; + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_cpus); + static int __init snd_soc_init(void) { + int ret; + snd_soc_debugfs_init(); - snd_soc_util_init(); + ret = snd_soc_util_init(); + if (ret) + goto err_util_init; - return platform_driver_register(&soc_driver); + ret = platform_driver_register(&soc_driver); + if (ret) + goto err_register; + return 0; + +err_register: + snd_soc_util_exit(); +err_util_init: + snd_soc_debugfs_exit(); + return ret; } module_init(snd_soc_init); |