diff options
Diffstat (limited to 'sound/soc/soc-core.c')
-rw-r--r-- | sound/soc/soc-core.c | 201 |
1 files changed, 109 insertions, 92 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 985052b3fbed..c29b6caf2927 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -191,6 +191,39 @@ static ssize_t pmdown_time_set(struct device *dev, static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); +static struct attribute *soc_dev_attrs[] = { + &dev_attr_codec_reg.attr, + &dev_attr_pmdown_time.attr, + NULL +}; + +static umode_t soc_dev_attr_is_visible(struct kobject *kobj, + struct attribute *attr, int idx) +{ + struct device *dev = kobj_to_dev(kobj); + struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); + + if (attr == &dev_attr_pmdown_time.attr) + return attr->mode; /* always visible */ + return rtd->codec ? attr->mode : 0; /* enabled only with codec */ +} + +static const struct attribute_group soc_dapm_dev_group = { + .attrs = soc_dapm_dev_attrs, + .is_visible = soc_dev_attr_is_visible, +}; + +static const struct attribute_group soc_dev_roup = { + .attrs = soc_dev_attrs, + .is_visible = soc_dev_attr_is_visible, +}; + +static const struct attribute_group *soc_dev_attr_groups[] = { + &soc_dapm_dev_group, + &soc_dev_roup, + NULL +}; + #ifdef CONFIG_DEBUG_FS static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -949,8 +982,6 @@ static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) /* unregister the rtd device */ if (rtd->dev_registered) { - device_remove_file(rtd->dev, &dev_attr_pmdown_time); - device_remove_file(rtd->dev, &dev_attr_codec_reg); device_unregister(rtd->dev); rtd->dev_registered = 0; } @@ -1120,6 +1151,7 @@ static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, 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); @@ -1136,23 +1168,6 @@ static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, return ret; } rtd->dev_registered = 1; - - if (rtd->codec) { - /* add DAPM sysfs entries for this codec */ - ret = snd_soc_dapm_sys_add(rtd->dev); - if (ret < 0) - dev_err(rtd->dev, - "ASoC: failed to add codec dapm sysfs entries: %d\n", - ret); - - /* add codec sysfs entries */ - ret = device_create_file(rtd->dev, &dev_attr_codec_reg); - if (ret < 0) - dev_err(rtd->dev, - "ASoC: failed to add codec sysfs files: %d\n", - ret); - } - return 0; } @@ -1308,11 +1323,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) } #endif - ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); - if (ret < 0) - dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n", - ret); - if (cpu_dai->driver->compress_dai) { /*create compress_device"*/ ret = soc_new_compress(rtd, num); @@ -1427,11 +1437,76 @@ static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) return 0; } +/** + * 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. + */ +int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, + unsigned int dai_fmt) +{ + struct snd_soc_dai **codec_dais = rtd->codec_dais; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int i; + int ret; + + for (i = 0; i < rtd->num_codecs; i++) { + struct snd_soc_dai *codec_dai = codec_dais[i]; + + 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 */ + if (cpu_dai->codec) { + 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 int snd_soc_instantiate_card(struct snd_soc_card *card) { struct snd_soc_codec *codec; - struct snd_soc_dai_link *dai_link; - int ret, i, order, dai_fmt; + int ret, i, order; mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); @@ -1542,60 +1617,9 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) card->num_dapm_routes); for (i = 0; i < card->num_links; i++) { - struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; - dai_link = &card->dai_link[i]; - dai_fmt = dai_link->dai_fmt; - - if (dai_fmt) { - struct snd_soc_dai **codec_dais = rtd->codec_dais; - int j; - - for (j = 0; j < rtd->num_codecs; j++) { - struct snd_soc_dai *codec_dai = codec_dais[j]; - - 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); - } - } - - /* If this is a regular CPU link there will be a platform */ - if (dai_fmt && - (dai_link->platform_name || dai_link->platform_of_node)) { - ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, - dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) - dev_warn(card->rtd[i].cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", - ret); - } else if (dai_fmt) { - /* Flip the polarity for the "CPU" end */ - dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_link->dai_fmt & - SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } - - ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, - dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) - dev_warn(card->rtd[i].cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", - ret); - } + if (card->dai_link[i].dai_fmt) + snd_soc_runtime_set_dai_fmt(&card->rtd[i], + card->dai_link[i].dai_fmt); } snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), @@ -1626,9 +1650,6 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) } } - if (card->fully_routed) - snd_soc_dapm_auto_nc_pins(card); - snd_soc_dapm_new_widgets(card); ret = snd_card_register(card->snd_card); @@ -3230,7 +3251,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, const char *propname) { struct device_node *np = card->dev->of_node; - int num_routes, old_routes; + int num_routes; struct snd_soc_dapm_route *routes; int i, ret; @@ -3248,9 +3269,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, return -EINVAL; } - old_routes = card->num_dapm_routes; - routes = devm_kzalloc(card->dev, - (old_routes + num_routes) * sizeof(*routes), + routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), GFP_KERNEL); if (!routes) { dev_err(card->dev, @@ -3258,11 +3277,9 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, return -EINVAL; } - memcpy(routes, card->dapm_routes, old_routes * sizeof(*routes)); - for (i = 0; i < num_routes; i++) { ret = of_property_read_string_index(np, propname, - 2 * i, &routes[old_routes + i].sink); + 2 * i, &routes[i].sink); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", @@ -3270,7 +3287,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, return -EINVAL; } ret = of_property_read_string_index(np, propname, - (2 * i) + 1, &routes[old_routes + i].source); + (2 * i) + 1, &routes[i].source); if (ret) { dev_err(card->dev, "ASoC: Property '%s' index %d could not be read: %d\n", @@ -3279,7 +3296,7 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, } } - card->num_dapm_routes += num_routes; + card->num_dapm_routes = num_routes; card->dapm_routes = routes; return 0; |