--- zzzz-none-000/linux-3.10.107/sound/soc/soc-core.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/sound/soc/soc-core.c 2021-02-04 17:41:59.000000000 +0000 @@ -30,16 +30,17 @@ #include <linux/bitops.h> #include <linux/debugfs.h> #include <linux/platform_device.h> +#include <linux/pinctrl/consumer.h> #include <linux/ctype.h> #include <linux/slab.h> #include <linux/of.h> -#include <sound/ac97_codec.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/initval.h> #define CREATE_TRACE_POINTS @@ -47,15 +48,12 @@ #define NAME_SIZE 32 -static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); - #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(dai_list); static LIST_HEAD(platform_list); static LIST_HEAD(codec_list); static LIST_HEAD(component_list); @@ -95,30 +93,21 @@ int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; int regsize = codec->driver->reg_word_size * 2; int ret; - char tmpbuf[len + 1]; - char regbuf[regsize + 1]; - - /* since tmpbuf is allocated on the stack, warn the callers if they - * try to abuse this function */ - WARN_ON(len > 63); /* +2 for ': ' and + 1 for '\n' */ if (wordsize + regsize + 2 + 1 != len) return -EINVAL; - ret = snd_soc_read(codec, reg); - if (ret < 0) { - memset(regbuf, 'X', regsize); - regbuf[regsize] = '\0'; - } else { - snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); - } - - /* prepare the buffer */ - snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); - /* copy it back to the caller without the '\0' */ - memcpy(buf, tmpbuf, len); + sprintf(buf, "%.*x: ", wordsize, reg); + buf += wordsize + 2; + ret = snd_soc_read(codec, reg); + if (ret < 0) + memset(buf, 'X', regsize); + else + sprintf(buf, "%.*x", regsize, ret); + buf[regsize] = '\n'; + /* no NUL-termination needed */ return 0; } @@ -144,22 +133,15 @@ step = codec->driver->reg_cache_step; for (i = 0; i < codec->driver->reg_cache_size; i += step) { - if (!snd_soc_codec_readable_register(codec, i)) - continue; - if (codec->driver->display_register) { - count += codec->driver->display_register(codec, buf + count, - PAGE_SIZE - count, i); - } else { - /* only support larger than PAGE_SIZE bytes debugfs - * entries for the default case */ - if (p >= pos) { - if (total + len >= count - 1) - break; - format_register_str(codec, i, buf + total, len); - total += len; - } - p += len; + /* only support larger than PAGE_SIZE bytes debugfs + * entries for the default case */ + if (p >= pos) { + if (total + len >= count - 1) + break; + format_register_str(codec, i, buf + total, len); + total += len; } + p += len; } total = min(total, count - 1); @@ -192,7 +174,7 @@ struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); int ret; - ret = strict_strtol(buf, 10, &rtd->pmdown_time); + ret = kstrtol(buf, 10, &rtd->pmdown_time); if (ret) return ret; @@ -201,6 +183,39 @@ 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) @@ -237,6 +252,7 @@ char *start = buf; unsigned long reg, value; struct snd_soc_codec *codec = file->private_data; + int ret; buf_size = min(count, (sizeof(buf)-1)); if (copy_from_user(buf, user_buf, buf_size)) @@ -248,8 +264,9 @@ reg = simple_strtoul(start, &start, 16); while (*start == ' ') start++; - if (strict_strtoul(start, 16, &value)) - return -EINVAL; + ret = kstrtoul(start, 16, &value); + if (ret) + return ret; /* Userspace has been fiddling around behind the kernel's back */ add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE); @@ -265,57 +282,54 @@ .llseek = default_llseek, }; -static void soc_init_codec_debugfs(struct snd_soc_codec *codec) +static void soc_init_component_debugfs(struct snd_soc_component *component) { - struct dentry *debugfs_card_root = codec->card->debugfs_card_root; - - codec->debugfs_codec_root = debugfs_create_dir(codec->name, - debugfs_card_root); - if (!codec->debugfs_codec_root) { - dev_warn(codec->dev, "ASoC: Failed to create codec debugfs" - " directory\n"); + if (!component->card->debugfs_card_root) return; + + if (component->debugfs_prefix) { + char *name; + + name = kasprintf(GFP_KERNEL, "%s:%s", + component->debugfs_prefix, component->name); + if (name) { + component->debugfs_root = debugfs_create_dir(name, + component->card->debugfs_card_root); + kfree(name); + } + } else { + component->debugfs_root = debugfs_create_dir(component->name, + component->card->debugfs_card_root); } - debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, - &codec->cache_sync); - debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, - &codec->cache_only); + if (!component->debugfs_root) { + dev_warn(component->dev, + "ASoC: Failed to create component debugfs directory\n"); + return; + } - codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, - codec->debugfs_codec_root, - codec, &codec_reg_fops); - if (!codec->debugfs_reg) - dev_warn(codec->dev, "ASoC: Failed to create codec register" - " debugfs file\n"); + snd_soc_dapm_debugfs_init(snd_soc_component_get_dapm(component), + component->debugfs_root); - snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); + if (component->init_debugfs) + component->init_debugfs(component); } -static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) +static void soc_cleanup_component_debugfs(struct snd_soc_component *component) { - debugfs_remove_recursive(codec->debugfs_codec_root); + debugfs_remove_recursive(component->debugfs_root); } -static void soc_init_platform_debugfs(struct snd_soc_platform *platform) +static void soc_init_codec_debugfs(struct snd_soc_component *component) { - struct dentry *debugfs_card_root = platform->card->debugfs_card_root; + struct snd_soc_codec *codec = snd_soc_component_to_codec(component); - platform->debugfs_platform_root = debugfs_create_dir(platform->name, - debugfs_card_root); - if (!platform->debugfs_platform_root) { - dev_warn(platform->dev, - "ASoC: Failed to create platform debugfs directory\n"); - return; - } - - snd_soc_dapm_debugfs_init(&platform->dapm, - platform->debugfs_platform_root); -} - -static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) -{ - debugfs_remove_recursive(platform->debugfs_platform_root); + codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, + codec->component.debugfs_root, + codec, &codec_reg_fops); + if (!codec->debugfs_reg) + dev_warn(codec->dev, + "ASoC: Failed to create codec register debugfs file\n"); } static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, @@ -328,9 +342,11 @@ if (!buf) return -ENOMEM; + mutex_lock(&client_mutex); + list_for_each_entry(codec, &codec_list, list) { len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", - codec->name); + codec->component.name); if (len >= 0) ret += len; if (ret > PAGE_SIZE) { @@ -339,6 +355,8 @@ } } + mutex_unlock(&client_mutex); + if (ret >= 0) ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); @@ -357,21 +375,29 @@ { char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); ssize_t len, ret = 0; + struct snd_soc_component *component; struct snd_soc_dai *dai; if (!buf) return -ENOMEM; - list_for_each_entry(dai, &dai_list, list) { - len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); - if (len >= 0) - ret += len; - if (ret > PAGE_SIZE) { - ret = PAGE_SIZE; - break; + mutex_lock(&client_mutex); + + list_for_each_entry(component, &component_list, list) { + list_for_each_entry(dai, &component->dai_list, list) { + len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", + dai->name); + if (len >= 0) + ret += len; + if (ret > PAGE_SIZE) { + ret = PAGE_SIZE; + break; + } } } + mutex_unlock(&client_mutex); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); kfree(buf); @@ -395,9 +421,11 @@ if (!buf) return -ENOMEM; + mutex_lock(&client_mutex); + list_for_each_entry(platform, &platform_list, list) { len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", - platform->name); + platform->component.name); if (len >= 0) ret += len; if (ret > PAGE_SIZE) { @@ -406,6 +434,8 @@ } } + mutex_unlock(&client_mutex); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); kfree(buf); @@ -420,6 +450,9 @@ 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) { @@ -441,21 +474,45 @@ debugfs_remove_recursive(card->debugfs_card_root); } -#else -static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) +static void snd_soc_debugfs_init(void) { + snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); + if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { + pr_warn("ASoC: Failed to create debugfs directory\n"); + snd_soc_debugfs_root = NULL; + return; + } + + if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, + &codec_list_fops)) + pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); + + if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, + &dai_list_fops)) + pr_warn("ASoC: Failed to create DAI list debugfs file\n"); + + if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, + &platform_list_fops)) + pr_warn("ASoC: Failed to create platform list debugfs file\n"); } -static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) +static void snd_soc_debugfs_exit(void) { + debugfs_remove_recursive(snd_soc_debugfs_root); } -static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform) +#else + +#define soc_init_codec_debugfs NULL + +static inline void soc_init_component_debugfs( + struct snd_soc_component *component) { } -static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) +static inline void soc_cleanup_component_debugfs( + struct snd_soc_component *component) { } @@ -466,6 +523,15 @@ 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) +{ +} + #endif struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, @@ -497,38 +563,14 @@ } EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); -#ifdef CONFIG_SND_SOC_AC97_BUS -/* unregister ac97 codec */ -static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) +static void codec2codec_close_delayed_work(struct work_struct *work) { - if (codec->ac97->dev.bus) - device_unregister(&codec->ac97->dev); - return 0; -} - -/* stop no dev release warning */ -static void soc_ac97_device_release(struct device *dev){} - -/* register ac97 codec to bus */ -static int soc_ac97_dev_register(struct snd_soc_codec *codec) -{ - int err; - - codec->ac97->dev.bus = &ac97_bus_type; - codec->ac97->dev.parent = codec->card->dev; - codec->ac97->dev.release = soc_ac97_device_release; - - dev_set_name(&codec->ac97->dev, "%d-%d:%s", - codec->card->snd_card->number, 0, codec->name); - err = device_register(&codec->ac97->dev); - if (err < 0) { - dev_err(codec->dev, "ASoC: Can't register ac97 bus\n"); - codec->ac97->dev.bus = NULL; - return err; - } - return 0; + /* 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. + */ } -#endif #ifdef CONFIG_PM_SLEEP /* powers down audio subsystem for suspend */ @@ -536,12 +578,10 @@ { struct snd_soc_card *card = dev_get_drvdata(dev); struct snd_soc_codec *codec; - int i; + int i, j; - /* If the initialization of this soc device failed, there is no codec - * associated with it. Just bail out in this case. - */ - if (list_empty(&card->codec_dev_list)) + /* If the card is not initialized yet there is nothing to do */ + if (!card->instantiated) return 0; /* Due to the resume being scheduled into a workqueue we could @@ -556,14 +596,17 @@ /* mute any active DACs */ for (i = 0; i < card->num_rtd; i++) { - struct snd_soc_dai *dai = card->rtd[i].codec_dai; - struct snd_soc_dai_driver *drv = dai->driver; if (card->rtd[i].dai_link->ignore_suspend) continue; - if (drv->ops->digital_mute && dai->playback_active) - drv->ops->digital_mute(dai, 1); + for (j = 0; j < card->rtd[i].num_codecs; j++) { + struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; + struct snd_soc_dai_driver *drv = dai->driver; + + if (drv->ops->digital_mute && dai->playback_active) + drv->ops->digital_mute(dai, 1); + } } /* suspend all pcms */ @@ -579,24 +622,17 @@ for (i = 0; i < card->num_rtd; i++) { struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; - struct snd_soc_platform *platform = card->rtd[i].platform; if (card->rtd[i].dai_link->ignore_suspend) continue; - if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) + if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) cpu_dai->driver->suspend(cpu_dai); - if (platform->driver->suspend && !platform->suspended) { - platform->driver->suspend(cpu_dai); - platform->suspended = 1; - } } - /* close any waiting streams and save state */ - for (i = 0; i < card->num_rtd; i++) { + /* close any waiting streams */ + for (i = 0; i < card->num_rtd; i++) flush_delayed_work(&card->rtd[i].delayed_work); - card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; - } for (i = 0; i < card->num_rtd; i++) { @@ -612,16 +648,18 @@ SND_SOC_DAPM_STREAM_SUSPEND); } - /* Recheck all analogue paths too */ - dapm_mark_io_dirty(&card->dapm); + /* Recheck all endpoints too, their state is affected by suspend */ + dapm_mark_endpoints_dirty(card); snd_soc_dapm_sync(&card->dapm); /* suspend all CODECs */ list_for_each_entry(codec, &card->codec_dev_list, card_list) { + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); + /* If there are paths active then the CODEC will be held with * bias _ON and should not be suspended. */ - if (!codec->suspended && codec->driver->suspend) { - switch (codec->dapm.bias_level) { + if (!codec->suspended) { + switch (snd_soc_dapm_get_bias_level(dapm)) { case SND_SOC_BIAS_STANDBY: /* * If the CODEC is capable of idle @@ -629,22 +667,24 @@ * means it's doing something, * otherwise fall through. */ - if (codec->dapm.idle_bias_off) { + if (dapm->idle_bias_off) { dev_dbg(codec->dev, - "ASoC: idle_bias_off CODEC on" - " over suspend\n"); + "ASoC: idle_bias_off CODEC on over suspend\n"); break; } + case SND_SOC_BIAS_OFF: - codec->driver->suspend(codec); + if (codec->driver->suspend) + codec->driver->suspend(codec); codec->suspended = 1; - codec->cache_sync = 1; - if (codec->using_regmap) - regcache_mark_dirty(codec->control_data); + if (codec->component.regmap) + regcache_mark_dirty(codec->component.regmap); + /* deactivate pins to sleep state */ + pinctrl_pm_select_sleep_state(codec->dev); break; default: - dev_dbg(codec->dev, "ASoC: CODEC is on" - " over suspend\n"); + dev_dbg(codec->dev, + "ASoC: CODEC is on over suspend\n"); break; } } @@ -656,8 +696,11 @@ if (card->rtd[i].dai_link->ignore_suspend) continue; - if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) + 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) @@ -675,7 +718,7 @@ struct snd_soc_card *card = container_of(work, struct snd_soc_card, deferred_resume_work); struct snd_soc_codec *codec; - int i; + int i, j; /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, * so userspace apps are blocked from touching us @@ -689,34 +732,22 @@ if (card->resume_pre) card->resume_pre(card); - /* resume AC97 DAIs */ + /* resume control bus DAIs */ for (i = 0; i < card->num_rtd; i++) { struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; if (card->rtd[i].dai_link->ignore_suspend) continue; - if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) + if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) cpu_dai->driver->resume(cpu_dai); } list_for_each_entry(codec, &card->codec_dev_list, card_list) { - /* If the CODEC was idle over suspend then it will have been - * left with bias OFF or STANDBY and suspended so we must now - * resume. Otherwise the suspend was suppressed. - */ - if (codec->driver->resume && codec->suspended) { - switch (codec->dapm.bias_level) { - case SND_SOC_BIAS_STANDBY: - case SND_SOC_BIAS_OFF: + if (codec->suspended) { + if (codec->driver->resume) codec->driver->resume(codec); - codec->suspended = 0; - break; - default: - dev_dbg(codec->dev, "ASoC: CODEC was on over" - " suspend\n"); - break; - } + codec->suspended = 0; } } @@ -736,29 +767,27 @@ /* unmute any active DACs */ for (i = 0; i < card->num_rtd; i++) { - struct snd_soc_dai *dai = card->rtd[i].codec_dai; - struct snd_soc_dai_driver *drv = dai->driver; if (card->rtd[i].dai_link->ignore_suspend) continue; - if (drv->ops->digital_mute && dai->playback_active) - drv->ops->digital_mute(dai, 0); + for (j = 0; j < card->rtd[i].num_codecs; j++) { + struct snd_soc_dai *dai = card->rtd[i].codec_dais[j]; + struct snd_soc_dai_driver *drv = dai->driver; + + if (drv->ops->digital_mute && dai->playback_active) + drv->ops->digital_mute(dai, 0); + } } for (i = 0; i < card->num_rtd; i++) { struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; - struct snd_soc_platform *platform = card->rtd[i].platform; if (card->rtd[i].dai_link->ignore_suspend) continue; - if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) + if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) cpu_dai->driver->resume(cpu_dai); - if (platform->driver->resume && platform->suspended) { - platform->driver->resume(cpu_dai); - platform->suspended = 0; - } } if (card->resume_post) @@ -766,37 +795,54 @@ 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); + /* userspace can access us now we are back as we were before */ snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); - - /* Recheck all analogue paths too */ - dapm_mark_io_dirty(&card->dapm); - snd_soc_dapm_sync(&card->dapm); } /* powers up audio subsystem after a suspend */ int snd_soc_resume(struct device *dev) { struct snd_soc_card *card = dev_get_drvdata(dev); - int i, ac97_control = 0; + bool bus_control = false; + int i; - /* If the initialization of this soc device failed, there is no codec - * associated with it. Just bail out in this case. - */ - if (list_empty(&card->codec_dev_list)) + /* If the card is not initialized yet there is nothing to do */ + if (!card->instantiated) return 0; - /* AC97 devices 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 + /* activate pins from sleep state */ + for (i = 0; i < card->num_rtd; i++) { + struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; + struct snd_soc_dai **codec_dais = rtd->codec_dais; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int j; + + if (cpu_dai->active) + pinctrl_pm_select_default_state(cpu_dai->dev); + + for (j = 0; j < rtd->num_codecs; j++) { + struct snd_soc_dai *codec_dai = codec_dais[j]; + if (codec_dai->active) + pinctrl_pm_select_default_state(codec_dai->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 (i = 0; i < card->num_rtd; i++) { struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; - ac97_control |= cpu_dai->driver->ac97_control; + bus_control |= cpu_dai->driver->bus_control; } - if (ac97_control) { - dev_dbg(dev, "ASoC: Resuming AC97 immediately\n"); + 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"); @@ -815,75 +861,93 @@ static const struct snd_soc_dai_ops null_dai_ops = { }; -static int soc_bind_dai_link(struct snd_soc_card *card, int num) +static struct snd_soc_component *soc_find_component( + const struct device_node *of_node, const char *name) { - struct snd_soc_dai_link *dai_link = &card->dai_link[num]; - struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; - struct snd_soc_codec *codec; - struct snd_soc_platform *platform; - struct snd_soc_dai *codec_dai, *cpu_dai; - const char *platform_name; + struct snd_soc_component *component; - dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); + lockdep_assert_held(&client_mutex); + + list_for_each_entry(component, &component_list, list) { + if (of_node) { + if (component->dev->of_node == of_node) + return component; + } else if (strcmp(component->name, name) == 0) { + return component; + } + } + + return NULL; +} + +static struct snd_soc_dai *snd_soc_find_dai( + const struct snd_soc_dai_link_component *dlc) +{ + struct snd_soc_component *component; + struct snd_soc_dai *dai; + struct device_node *component_of_node; + + lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs*/ - list_for_each_entry(cpu_dai, &dai_list, list) { - if (dai_link->cpu_of_node && - (cpu_dai->dev->of_node != dai_link->cpu_of_node)) - continue; - if (dai_link->cpu_name && - strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name)) + list_for_each_entry(component, &component_list, list) { + component_of_node = component->dev->of_node; + if (!component_of_node && component->dev->parent) + component_of_node = component->dev->parent->of_node; + + if (dlc->of_node && component_of_node != dlc->of_node) continue; - if (dai_link->cpu_dai_name && - strcmp(cpu_dai->name, dai_link->cpu_dai_name)) + if (dlc->name && strcmp(component->name, dlc->name)) continue; + list_for_each_entry(dai, &component->dai_list, list) { + if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)) + continue; - rtd->cpu_dai = cpu_dai; + return dai; + } } + return NULL; +} + +static int soc_bind_dai_link(struct snd_soc_card *card, int num) +{ + struct snd_soc_dai_link *dai_link = &card->dai_link[num]; + struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; + struct snd_soc_dai_link_component *codecs = dai_link->codecs; + struct snd_soc_dai_link_component cpu_dai_component; + struct snd_soc_dai **codec_dais = rtd->codec_dais; + struct snd_soc_platform *platform; + const char *platform_name; + int i; + + dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); + + 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_err(card->dev, "ASoC: CPU DAI %s not registered\n", dai_link->cpu_dai_name); return -EPROBE_DEFER; } - /* Find CODEC from registered CODECs */ - list_for_each_entry(codec, &codec_list, list) { - if (dai_link->codec_of_node) { - if (codec->dev->of_node != dai_link->codec_of_node) - continue; - } else { - if (strcmp(codec->name, dai_link->codec_name)) - continue; - } - - rtd->codec = codec; - - /* - * CODEC found, so find CODEC DAI from registered DAIs from - * this CODEC - */ - list_for_each_entry(codec_dai, &dai_list, list) { - if (codec->dev == codec_dai->dev && - !strcmp(codec_dai->name, - dai_link->codec_dai_name)) { + rtd->num_codecs = dai_link->num_codecs; - rtd->codec_dai = codec_dai; - } - } - - if (!rtd->codec_dai) { + /* Find CODEC from registered CODECs */ + 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", - dai_link->codec_dai_name); + codecs[i].dai_name); return -EPROBE_DEFER; } } - if (!rtd->codec) { - dev_err(card->dev, "ASoC: CODEC %s not registered\n", - dai_link->codec_name); - return -EPROBE_DEFER; - } + /* Single codec links expect codec and codec_dai in runtime data */ + rtd->codec_dai = codec_dais[0]; + rtd->codec = rtd->codec_dai->codec; /* if there's no platform we match on the empty platform */ platform_name = dai_link->platform_name; @@ -897,7 +961,7 @@ dai_link->platform_of_node) continue; } else { - if (strcmp(platform->name, platform_name)) + if (strcmp(platform->component.name, platform_name)) continue; } @@ -914,93 +978,58 @@ return 0; } -static int soc_remove_platform(struct snd_soc_platform *platform) +static void soc_remove_component(struct snd_soc_component *component) { - int ret; + if (!component->card) + return; - if (platform->driver->remove) { - ret = platform->driver->remove(platform); - if (ret < 0) - dev_err(platform->dev, "ASoC: failed to remove %d\n", - ret); - } + /* This is a HACK and will be removed soon */ + if (component->codec) + list_del(&component->codec->card_list); - /* Make sure all DAPM widgets are freed */ - snd_soc_dapm_free(&platform->dapm); + if (component->remove) + component->remove(component); - soc_cleanup_platform_debugfs(platform); - platform->probed = 0; - list_del(&platform->card_list); - module_put(platform->dev->driver->owner); + snd_soc_dapm_free(snd_soc_component_get_dapm(component)); - return 0; + soc_cleanup_component_debugfs(component); + component->card = NULL; + module_put(component->dev->driver->owner); } -static void soc_remove_codec(struct snd_soc_codec *codec) +static void soc_remove_dai(struct snd_soc_dai *dai, int order) { int err; - if (codec->driver->remove) { - err = codec->driver->remove(codec); - if (err < 0) - dev_err(codec->dev, "ASoC: failed to remove %d\n", err); + if (dai && dai->probed && + dai->driver->remove_order == order) { + 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; } - - /* Make sure all DAPM widgets are freed */ - snd_soc_dapm_free(&codec->dapm); - - soc_cleanup_codec_debugfs(codec); - codec->probed = 0; - list_del(&codec->card_list); - module_put(codec->dev->driver->owner); } static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) { struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; - struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; - int err; + int i; /* 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; } /* remove the CODEC DAI */ - if (codec_dai && codec_dai->probed && - codec_dai->driver->remove_order == order) { - if (codec_dai->driver->remove) { - err = codec_dai->driver->remove(codec_dai); - if (err < 0) - dev_err(codec_dai->dev, - "ASoC: failed to remove %s: %d\n", - codec_dai->name, err); - } - codec_dai->probed = 0; - list_del(&codec_dai->card_list); - } + for (i = 0; i < rtd->num_codecs; i++) + soc_remove_dai(rtd->codec_dais[i], order); - /* remove the cpu_dai */ - if (cpu_dai && cpu_dai->probed && - cpu_dai->driver->remove_order == order) { - if (cpu_dai->driver->remove) { - err = cpu_dai->driver->remove(cpu_dai); - if (err < 0) - dev_err(cpu_dai->dev, - "ASoC: failed to remove %s: %d\n", - cpu_dai->name, err); - } - cpu_dai->probed = 0; - list_del(&cpu_dai->card_list); - - if (!cpu_dai->codec) { - snd_soc_dapm_free(&cpu_dai->dapm); - module_put(cpu_dai->dev->driver->owner); - } - } + soc_remove_dai(rtd->cpu_dai, order); } static void soc_remove_link_components(struct snd_soc_card *card, int num, @@ -1008,30 +1037,25 @@ { struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_platform *platform = rtd->platform; - struct snd_soc_codec *codec; + struct snd_soc_component *component; + int i; /* remove the platform */ - if (platform && platform->probed && - platform->driver->remove_order == order) { - soc_remove_platform(platform); - } + if (platform && platform->component.driver->remove_order == order) + soc_remove_component(&platform->component); /* remove the CODEC-side CODEC */ - if (codec_dai) { - codec = codec_dai->codec; - if (codec && codec->probed && - codec->driver->remove_order == order) - soc_remove_codec(codec); + for (i = 0; i < rtd->num_codecs; i++) { + component = rtd->codec_dais[i]->component; + if (component->driver->remove_order == order) + soc_remove_component(component); } /* remove any CPU-side CODEC */ if (cpu_dai) { - codec = cpu_dai->codec; - if (codec && codec->probed && - codec->driver->remove_order == order) - soc_remove_codec(codec); + if (cpu_dai->component->driver->remove_order == order) + soc_remove_component(cpu_dai->component); } } @@ -1055,7 +1079,7 @@ } static void soc_set_name_prefix(struct snd_soc_card *card, - struct snd_soc_codec *codec) + struct snd_soc_component *component) { int i; @@ -1064,136 +1088,97 @@ for (i = 0; i < card->num_configs; i++) { struct snd_soc_codec_conf *map = &card->codec_conf[i]; - if (map->dev_name && !strcmp(codec->name, map->dev_name)) { - codec->name_prefix = map->name_prefix; - break; - } + if (map->of_node && component->dev->of_node != map->of_node) + continue; + if (map->dev_name && strcmp(component->name, map->dev_name)) + continue; + component->name_prefix = map->name_prefix; + break; } } -static int soc_probe_codec(struct snd_soc_card *card, - struct snd_soc_codec *codec) +static int soc_probe_component(struct snd_soc_card *card, + struct snd_soc_component *component) { - int ret = 0; - const struct snd_soc_codec_driver *driver = codec->driver; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); struct snd_soc_dai *dai; + int ret; - codec->card = card; - codec->dapm.card = card; - soc_set_name_prefix(card, codec); - - if (!try_module_get(codec->dev->driver->owner)) - return -ENODEV; - - soc_init_codec_debugfs(codec); - - if (driver->dapm_widgets) - snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, - driver->num_dapm_widgets); - - /* Create DAPM widgets for each DAI stream */ - list_for_each_entry(dai, &dai_list, list) { - if (dai->dev != codec->dev) - continue; + if (!strcmp(component->name, "snd-soc-dummy")) + return 0; - snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); + 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); + return -ENODEV; + } + return 0; } - codec->dapm.idle_bias_off = driver->idle_bias_off; + if (!try_module_get(component->dev->driver->owner)) + return -ENODEV; - if (driver->probe) { - ret = driver->probe(codec); - if (ret < 0) { - dev_err(codec->dev, - "ASoC: failed to probe CODEC %d\n", ret); + component->card = card; + dapm->card = card; + soc_set_name_prefix(card, component); + + soc_init_component_debugfs(component); + + if (component->dapm_widgets) { + ret = snd_soc_dapm_new_controls(dapm, component->dapm_widgets, + component->num_dapm_widgets); + + if (ret != 0) { + dev_err(component->dev, + "Failed to create new controls %d\n", ret); goto err_probe; } - WARN(codec->dapm.idle_bias_off && - codec->dapm.bias_level != SND_SOC_BIAS_OFF, - "codec %s can not start from non-off bias" - " with idle_bias_off==1\n", codec->name); - } - - /* If the driver didn't set I/O up try regmap */ - if (!codec->write && dev_get_regmap(codec->dev, NULL)) - snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP); - - if (driver->controls) - snd_soc_add_codec_controls(codec, driver->controls, - driver->num_controls); - if (driver->dapm_routes) - snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, - driver->num_dapm_routes); - - /* mark codec as probed and add to card codec list */ - codec->probed = 1; - list_add(&codec->card_list, &card->codec_dev_list); - list_add(&codec->dapm.list, &card->dapm_list); - - return 0; - -err_probe: - soc_cleanup_codec_debugfs(codec); - module_put(codec->dev->driver->owner); - - return ret; -} - -static int soc_probe_platform(struct snd_soc_card *card, - struct snd_soc_platform *platform) -{ - int ret = 0; - const struct snd_soc_platform_driver *driver = platform->driver; - struct snd_soc_dai *dai; - - platform->card = card; - platform->dapm.card = card; - - if (!try_module_get(platform->dev->driver->owner)) - return -ENODEV; - - soc_init_platform_debugfs(platform); - - if (driver->dapm_widgets) - snd_soc_dapm_new_controls(&platform->dapm, - driver->dapm_widgets, driver->num_dapm_widgets); - - /* Create DAPM widgets for each DAI stream */ - list_for_each_entry(dai, &dai_list, list) { - if (dai->dev != platform->dev) - continue; - - snd_soc_dapm_new_dai_widgets(&platform->dapm, dai); } - platform->dapm.idle_bias_off = 1; + list_for_each_entry(dai, &component->dai_list, list) { + ret = snd_soc_dapm_new_dai_widgets(dapm, dai); + if (ret != 0) { + dev_err(component->dev, + "Failed to create DAI widgets %d\n", ret); + goto err_probe; + } + } - if (driver->probe) { - ret = driver->probe(platform); + if (component->probe) { + ret = component->probe(component); if (ret < 0) { - dev_err(platform->dev, - "ASoC: failed to probe platform %d\n", ret); + dev_err(component->dev, + "ASoC: failed to probe component %d\n", ret); goto err_probe; } - } - if (driver->controls) - snd_soc_add_platform_controls(platform, driver->controls, - driver->num_controls); - if (driver->dapm_routes) - snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, - driver->num_dapm_routes); - - /* mark platform as probed and add to card platform list */ - platform->probed = 1; - list_add(&platform->card_list, &card->platform_dev_list); - list_add(&platform->dapm.list, &card->dapm_list); + 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); + } + + if (component->controls) + snd_soc_add_component_controls(component, component->controls, + component->num_controls); + if (component->dapm_routes) + snd_soc_dapm_add_routes(dapm, component->dapm_routes, + component->num_dapm_routes); + + list_add(&dapm->list, &card->dapm_list); + + /* This is a HACK and will be removed soon */ + if (component->codec) + list_add(&component->codec->card_list, &card->codec_dev_list); return 0; err_probe: - soc_cleanup_platform_debugfs(platform); - module_put(platform->dev->driver->owner); + soc_cleanup_component_debugfs(component); + component->card = NULL; + module_put(component->dev->driver->owner); return ret; } @@ -1203,55 +1188,20 @@ kfree(dev); } -static int soc_post_component_init(struct snd_soc_card *card, - struct snd_soc_codec *codec, - int num, int dailess) -{ - struct snd_soc_dai_link *dai_link = NULL; - struct snd_soc_aux_dev *aux_dev = NULL; - struct snd_soc_pcm_runtime *rtd; - const char *temp, *name; +static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd, + const char *name) +{ int ret = 0; - if (!dailess) { - dai_link = &card->dai_link[num]; - rtd = &card->rtd[num]; - name = dai_link->name; - } else { - aux_dev = &card->aux_dev[num]; - rtd = &card->rtd_aux[num]; - name = aux_dev->name; - } - rtd->card = card; - - /* Make sure all DAPM widgets are instantiated */ - snd_soc_dapm_new_widgets(&codec->dapm); - - /* machine controls, routes and widgets are not prefixed */ - temp = codec->name_prefix; - codec->name_prefix = NULL; - - /* do machine specific initialization */ - if (!dailess && dai_link->init) - ret = dai_link->init(rtd); - else if (dailess && aux_dev->init) - ret = aux_dev->init(&codec->dapm); - if (ret < 0) { - dev_err(card->dev, "ASoC: failed to init %s: %d\n", name, ret); - return ret; - } - codec->name_prefix = temp; - /* register the rtd device */ - rtd->codec = codec; - rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); if (!rtd->dev) return -ENOMEM; device_initialize(rtd->dev); - rtd->dev->parent = card->dev; + rtd->dev->parent = rtd->card->dev; rtd->dev->release = rtd_release; - rtd->dev->init_name = name; + 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); @@ -1262,35 +1212,11 @@ if (ret < 0) { /* calling put_device() here to free the rtd->dev */ put_device(rtd->dev); - dev_err(card->dev, + dev_err(rtd->card->dev, "ASoC: failed to register runtime device: %d\n", ret); return ret; } rtd->dev_registered = 1; - - /* add DAPM sysfs entries for this codec */ - ret = snd_soc_dapm_sys_add(rtd->dev); - if (ret < 0) - dev_err(codec->dev, - "ASoC: failed to add codec dapm sysfs entries: %d\n", ret); - - /* add codec sysfs entries */ - ret = device_create_file(rtd->dev, &dev_attr_codec_reg); - if (ret < 0) - dev_err(codec->dev, - "ASoC: failed to add codec sysfs files: %d\n", ret); - -#ifdef CONFIG_DEBUG_FS - /* add DPCM sysfs entries */ - if (!dailess && !dai_link->dynamic) - goto out; - - ret = soc_dpcm_debugfs_add(rtd); - if (ret < 0) - dev_err(rtd->dev, "ASoC: failed to add dpcm sysfs entries: %d\n", ret); - -out: -#endif return 0; } @@ -1298,32 +1224,31 @@ int order) { struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_platform *platform = rtd->platform; - int ret; + struct snd_soc_component *component; + int i, ret; /* probe the CPU-side component, if it is a CODEC */ - if (cpu_dai->codec && - !cpu_dai->codec->probed && - cpu_dai->codec->driver->probe_order == order) { - ret = soc_probe_codec(card, cpu_dai->codec); + component = rtd->cpu_dai->component; + if (component->driver->probe_order == order) { + ret = soc_probe_component(card, component); if (ret < 0) return ret; } - /* probe the CODEC-side component */ - if (!codec_dai->codec->probed && - codec_dai->codec->driver->probe_order == order) { - ret = soc_probe_codec(card, codec_dai->codec); - if (ret < 0) - return ret; + /* probe the CODEC-side components */ + for (i = 0; i < rtd->num_codecs; i++) { + component = rtd->codec_dais[i]->component; + if (component->driver->probe_order == order) { + ret = soc_probe_component(card, component); + if (ret < 0) + return ret; + } } /* probe the platform */ - if (!platform->probed && - platform->driver->probe_order == order) { - ret = soc_probe_platform(card, platform); + if (platform->component.driver->probe_order == order) { + ret = soc_probe_component(card, &platform->component); if (ret < 0) return ret; } @@ -1331,88 +1256,123 @@ return 0; } +static int soc_probe_dai(struct snd_soc_dai *dai, int order) +{ + int ret; + + if (!dai->probed && dai->driver->probe_order == order) { + if (dai->driver->probe) { + ret = dai->driver->probe(dai); + if (ret < 0) { + dev_err(dai->dev, + "ASoC: failed to probe DAI %s: %d\n", + dai->name, ret); + return ret; + } + } + + dai->probed = 1; + } + + return 0; +} + +static int soc_link_dai_widgets(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link, + struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dapm_widget *play_w, *capture_w; + int ret; + + if (rtd->num_codecs > 1) + dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); + + /* link the DAI widgets */ + play_w = codec_dai->playback_widget; + capture_w = cpu_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + dai_link->num_params, capture_w, + play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + return ret; + } + } + + play_w = cpu_dai->playback_widget; + capture_w = codec_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + dai_link->num_params, capture_w, + play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + return ret; + } + } + + return 0; +} + static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) { struct snd_soc_dai_link *dai_link = &card->dai_link[num]; struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; - struct snd_soc_codec *codec = rtd->codec; - struct snd_soc_platform *platform = rtd->platform; - struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dapm_widget *play_w, *capture_w; - int ret; + int i, ret; dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", card->name, num, order); - /* config components */ - cpu_dai->platform = platform; - codec_dai->card = card; - cpu_dai->card = card; - /* set default power off timeout */ rtd->pmdown_time = pmdown_time; - /* probe the cpu_dai */ - if (!cpu_dai->probed && - cpu_dai->driver->probe_order == order) { - if (!cpu_dai->codec) { - cpu_dai->dapm.card = card; - if (!try_module_get(cpu_dai->dev->driver->owner)) - return -ENODEV; - - list_add(&cpu_dai->dapm.list, &card->dapm_list); - snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai); - } - - if (cpu_dai->driver->probe) { - ret = cpu_dai->driver->probe(cpu_dai); - if (ret < 0) { - dev_err(cpu_dai->dev, - "ASoC: failed to probe CPU DAI %s: %d\n", - cpu_dai->name, ret); - module_put(cpu_dai->dev->driver->owner); - return ret; - } - } - cpu_dai->probed = 1; - /* mark cpu_dai as probed and add to card dai list */ - list_add(&cpu_dai->card_list, &card->dai_dev_list); - } + ret = soc_probe_dai(cpu_dai, order); + if (ret) + return ret; /* probe the CODEC DAI */ - if (!codec_dai->probed && codec_dai->driver->probe_order == order) { - if (codec_dai->driver->probe) { - ret = codec_dai->driver->probe(codec_dai); - if (ret < 0) { - dev_err(codec_dai->dev, - "ASoC: failed to probe CODEC DAI %s: %d\n", - codec_dai->name, ret); - return ret; - } - } - - /* mark codec_dai as probed and add to card dai list */ - codec_dai->probed = 1; - list_add(&codec_dai->card_list, &card->dai_dev_list); + for (i = 0; i < rtd->num_codecs; i++) { + ret = soc_probe_dai(rtd->codec_dais[i], order); + if (ret) + return ret; } /* complete DAI probe during last probe */ if (order != SND_SOC_COMP_ORDER_LAST) return 0; - ret = soc_post_component_init(card, codec, num, 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; - 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); +#ifdef CONFIG_DEBUG_FS + /* add DPCM sysfs entries */ + if (dai_link->dynamic) + soc_dpcm_debugfs_add(rtd); +#endif - if (cpu_dai->driver->compress_dai) { + if (cpu_dai->driver->compress_new) { /*create compress_device"*/ - ret = soc_new_compress(rtd, num); + 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); @@ -1429,175 +1389,172 @@ return ret; } } else { - /* link the DAI widgets */ - play_w = codec_dai->playback_widget; - capture_w = cpu_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } + INIT_DELAYED_WORK(&rtd->delayed_work, + codec2codec_close_delayed_work); - play_w = cpu_dai->playback_widget; - capture_w = codec_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } + /* link the DAI widgets */ + ret = soc_link_dai_widgets(card, dai_link, rtd); + if (ret) + return ret; } } - /* add platform data for AC97 devices */ - if (rtd->codec_dai->driver->ac97_control) - snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); - - return 0; -} - -#ifdef CONFIG_SND_SOC_AC97_BUS -static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) -{ - int ret; - - /* Only instantiate AC97 if not already done by the adaptor - * for the generic AC97 subsystem. - */ - if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { - /* - * It is possible that the AC97 device is already registered to - * the device subsystem. This happens when the device is created - * via snd_ac97_mixer(). Currently only SoC codec that does so - * is the generic AC97 glue but others migh emerge. - * - * In those cases we don't try to register the device again. - */ - if (!rtd->codec->ac97_created) - return 0; - - ret = soc_ac97_dev_register(rtd->codec); - if (ret < 0) { - dev_err(rtd->codec->dev, - "ASoC: AC97 device register failed: %d\n", ret); - return ret; - } - - rtd->codec->ac97_registered = 1; - } return 0; } -static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) -{ - if (codec->ac97_registered) { - soc_ac97_dev_unregister(codec); - codec->ac97_registered = 0; - } -} -#endif - -static int soc_check_aux_dev(struct snd_soc_card *card, int num) +static int soc_bind_aux_dev(struct snd_soc_card *card, int num) { + struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; - struct snd_soc_codec *codec; + const char *name = aux_dev->codec_name; - /* find CODEC from registered CODECs*/ - list_for_each_entry(codec, &codec_list, list) { - if (!strcmp(codec->name, aux_dev->codec_name)) - return 0; + rtd->component = soc_find_component(aux_dev->codec_of_node, name); + if (!rtd->component) { + if (aux_dev->codec_of_node) + name = of_node_full_name(aux_dev->codec_of_node); + + dev_err(card->dev, "ASoC: %s not registered\n", name); + return -EPROBE_DEFER; } - dev_err(card->dev, "ASoC: %s not registered\n", aux_dev->codec_name); + /* + * Some places still reference rtd->codec, so we have to keep that + * initialized if the component is a CODEC. Once all those references + * have been removed, this code can be removed as well. + */ + rtd->codec = rtd->component->codec; - return -EPROBE_DEFER; + return 0; } static int soc_probe_aux_dev(struct snd_soc_card *card, int num) { + struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; - struct snd_soc_codec *codec; - int ret = -ENODEV; - - /* find CODEC from registered CODECs*/ - list_for_each_entry(codec, &codec_list, list) { - if (!strcmp(codec->name, aux_dev->codec_name)) { - if (codec->probed) { - dev_err(codec->dev, - "ASoC: codec already probed"); - ret = -EBUSY; - goto out; - } - goto found; - } - } - /* codec not found */ - dev_err(card->dev, "ASoC: codec %s not found", aux_dev->codec_name); - return -EPROBE_DEFER; + int ret; -found: - ret = soc_probe_codec(card, codec); + ret = soc_probe_component(card, rtd->component); if (ret < 0) return ret; - ret = soc_post_component_init(card, codec, num, 1); + /* do machine specific initialization */ + if (aux_dev->init) { + ret = aux_dev->init(rtd->component); + if (ret < 0) { + dev_err(card->dev, "ASoC: failed to init %s: %d\n", + aux_dev->name, ret); + return ret; + } + } -out: - return ret; + return soc_post_component_init(rtd, aux_dev->name); } static void soc_remove_aux_dev(struct snd_soc_card *card, int num) { struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; - struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_component *component = rtd->component; /* unregister the rtd device */ if (rtd->dev_registered) { - device_remove_file(rtd->dev, &dev_attr_codec_reg); device_unregister(rtd->dev); rtd->dev_registered = 0; } - if (codec && codec->probed) - soc_remove_codec(codec); + if (component) + soc_remove_component(component); } -static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, - enum snd_soc_compress_type compress_type) +static int snd_soc_init_codec_cache(struct snd_soc_codec *codec) { int ret; if (codec->cache_init) return 0; - /* override the compress_type if necessary */ - if (compress_type && codec->compress_type != compress_type) - codec->compress_type = compress_type; ret = snd_soc_cache_init(codec); if (ret < 0) { - dev_err(codec->dev, "ASoC: Failed to set cache compression" - " type: %d\n", ret); + dev_err(codec->dev, + "ASoC: Failed to set cache compression type: %d\n", + ret); return ret; } codec->cache_init = 1; 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_codec_conf *codec_conf; - enum snd_soc_compress_type compress_type; - struct snd_soc_dai_link *dai_link; - int ret, i, order, dai_fmt; + int ret, i, order; + mutex_lock(&client_mutex); mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); /* bind DAIs */ @@ -1607,9 +1564,9 @@ goto base_error; } - /* check aux_devs too */ + /* bind aux_devs too */ for (i = 0; i < card->num_aux_devs; i++) { - ret = soc_check_aux_dev(card, i); + ret = soc_bind_aux_dev(card, i); if (ret != 0) goto base_error; } @@ -1618,32 +1575,22 @@ list_for_each_entry(codec, &codec_list, list) { if (codec->cache_init) continue; - /* by default we don't override the compress_type */ - compress_type = 0; - /* check to see if we need to override the compress_type */ - for (i = 0; i < card->num_configs; ++i) { - codec_conf = &card->codec_conf[i]; - if (!strcmp(codec->name, codec_conf->dev_name)) { - compress_type = codec_conf->compress_type; - if (compress_type && compress_type - != codec->compress_type) - break; - } - } - ret = snd_soc_init_codec_cache(codec, compress_type); + ret = snd_soc_init_codec_cache(codec); if (ret < 0) goto base_error; } /* card bind complete so register a sound card */ - ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, + ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, card->owner, 0, &card->snd_card); if (ret < 0) { - dev_err(card->dev, "ASoC: can't create sound card for" - " card %s: %d\n", card->name, ret); + dev_err(card->dev, + "ASoC: can't create sound card for card %s: %d\n", + card->name, ret); goto base_error; } - card->snd_card->dev = card->dev; + + soc_init_card_debugfs(card); card->dapm.bias_level = SND_SOC_BIAS_OFF; card->dapm.dev = card->dev; @@ -1663,6 +1610,10 @@ snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, card->num_dapm_widgets); + if (card->of_dapm_widgets) + snd_soc_dapm_new_controls(&card->dapm, card->of_dapm_widgets, + card->num_of_dapm_widgets); + /* initialise the sound card only once */ if (card->probe) { ret = card->probe(card); @@ -1709,6 +1660,7 @@ } 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); @@ -1717,57 +1669,9 @@ snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, card->num_dapm_routes); - snd_soc_dapm_new_widgets(&card->dapm); - - for (i = 0; i < card->num_links; i++) { - dai_link = &card->dai_link[i]; - dai_fmt = dai_link->dai_fmt; - - if (dai_fmt) { - ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, - dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) - dev_warn(card->rtd[i].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->of_dapm_routes) + snd_soc_dapm_add_routes(&card->dapm, card->of_dapm_routes, + card->num_of_dapm_routes); snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), "%s", card->name); @@ -1797,11 +1701,7 @@ } } - snd_soc_dapm_new_widgets(&card->dapm); - - if (card->fully_routed) - list_for_each_entry(codec, &card->codec_dev_list, card_list) - snd_soc_dapm_auto_nc_codec_pins(codec); + snd_soc_dapm_new_widgets(card); ret = snd_card_register(card->snd_card); if (ret < 0) { @@ -1810,23 +1710,10 @@ goto probe_aux_dev_err; } -#ifdef CONFIG_SND_SOC_AC97_BUS - /* register any AC97 codecs */ - for (i = 0; i < card->num_rtd; i++) { - ret = soc_register_ac97_dai_link(&card->rtd[i]); - if (ret < 0) { - dev_err(card->dev, "ASoC: failed to register AC97:" - " %d\n", ret); - while (--i >= 0) - soc_unregister_ac97_dai_link(card->rtd[i].codec); - goto probe_aux_dev_err; - } - } -#endif - card->instantiated = 1; snd_soc_dapm_sync(&card->dapm); mutex_unlock(&card->mutex); + mutex_unlock(&client_mutex); return 0; @@ -1841,10 +1728,13 @@ if (card->remove) card->remove(card); + snd_soc_dapm_free(&card->dapm); + soc_cleanup_card_debugfs(card); snd_card_free(card->snd_card); base_error: mutex_unlock(&card->mutex); + mutex_unlock(&client_mutex); return ret; } @@ -1927,6 +1817,19 @@ snd_soc_dapm_shutdown(card); + /* deactivate pins to sleep state */ + for (i = 0; i < card->num_rtd; i++) { + struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int j; + + pinctrl_pm_select_sleep_state(cpu_dai->dev); + for (j = 0; j < rtd->num_codecs; j++) { + struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; + pinctrl_pm_select_sleep_state(codec_dai->dev); + } + } + return 0; } EXPORT_SYMBOL_GPL(snd_soc_poweroff); @@ -1945,7 +1848,6 @@ static struct platform_driver soc_driver = { .driver = { .name = "soc-audio", - .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, }, .probe = soc_probe, @@ -1953,295 +1855,6 @@ }; /** - * snd_soc_codec_volatile_register: Report if a register is volatile. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indiciating if a CODEC register is volatile. - */ -int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->volatile_register) - return codec->volatile_register(codec, reg); - else - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); - -/** - * snd_soc_codec_readable_register: Report if a register is readable. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indicating if a CODEC register is readable. - */ -int snd_soc_codec_readable_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->readable_register) - return codec->readable_register(codec, reg); - else - return 1; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); - -/** - * snd_soc_codec_writable_register: Report if a register is writable. - * - * @codec: CODEC to query. - * @reg: Register to query. - * - * Boolean function indicating if a CODEC register is writable. - */ -int snd_soc_codec_writable_register(struct snd_soc_codec *codec, - unsigned int reg) -{ - if (codec->writable_register) - return codec->writable_register(codec, reg); - else - return 1; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); - -int snd_soc_platform_read(struct snd_soc_platform *platform, - unsigned int reg) -{ - unsigned int ret; - - if (!platform->driver->read) { - dev_err(platform->dev, "ASoC: platform has no read back\n"); - return -1; - } - - ret = platform->driver->read(platform, reg); - dev_dbg(platform->dev, "read %x => %x\n", reg, ret); - trace_snd_soc_preg_read(platform, reg, ret); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_platform_read); - -int snd_soc_platform_write(struct snd_soc_platform *platform, - unsigned int reg, unsigned int val) -{ - if (!platform->driver->write) { - dev_err(platform->dev, "ASoC: platform has no write back\n"); - return -1; - } - - dev_dbg(platform->dev, "write %x = %x\n", reg, val); - trace_snd_soc_preg_write(platform, reg, val); - return platform->driver->write(platform, reg, val); -} -EXPORT_SYMBOL_GPL(snd_soc_platform_write); - -/** - * snd_soc_new_ac97_codec - initailise AC97 device - * @codec: audio codec - * @ops: AC97 bus operations - * @num: AC97 codec number - * - * Initialises AC97 codec resources for use by ad-hoc devices only. - */ -int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, - struct snd_ac97_bus_ops *ops, int num) -{ - mutex_lock(&codec->mutex); - - codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); - if (codec->ac97 == NULL) { - mutex_unlock(&codec->mutex); - return -ENOMEM; - } - - codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); - if (codec->ac97->bus == NULL) { - kfree(codec->ac97); - codec->ac97 = NULL; - mutex_unlock(&codec->mutex); - return -ENOMEM; - } - - codec->ac97->bus->ops = ops; - codec->ac97->num = num; - - /* - * Mark the AC97 device to be created by us. This way we ensure that the - * device will be registered with the device subsystem later on. - */ - codec->ac97_created = 1; - - mutex_unlock(&codec->mutex); - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); - -/** - * snd_soc_free_ac97_codec - free AC97 codec device - * @codec: audio codec - * - * Frees AC97 codec device resources. - */ -void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) -{ - mutex_lock(&codec->mutex); -#ifdef CONFIG_SND_SOC_AC97_BUS - soc_unregister_ac97_dai_link(codec); -#endif - kfree(codec->ac97->bus); - kfree(codec->ac97); - codec->ac97 = NULL; - codec->ac97_created = 0; - mutex_unlock(&codec->mutex); -} -EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); - -unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) -{ - unsigned int ret; - - ret = codec->read(codec, reg); - dev_dbg(codec->dev, "read %x => %x\n", reg, ret); - trace_snd_soc_reg_read(codec, reg, ret); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_read); - -unsigned int snd_soc_write(struct snd_soc_codec *codec, - unsigned int reg, unsigned int val) -{ - dev_dbg(codec->dev, "write %x = %x\n", reg, val); - trace_snd_soc_reg_write(codec, reg, val); - return codec->write(codec, reg, val); -} -EXPORT_SYMBOL_GPL(snd_soc_write); - -unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, - unsigned int reg, const void *data, size_t len) -{ - return codec->bulk_write_raw(codec, reg, data, len); -} -EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); - -/** - * snd_soc_update_bits - update codec register bits - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Writes new register value. - * - * Returns 1 for change, 0 for no change, or negative error code. - */ -int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned int mask, unsigned int value) -{ - bool change; - unsigned int old, new; - int ret; - - if (codec->using_regmap) { - ret = regmap_update_bits_check(codec->control_data, reg, - mask, value, &change); - } else { - ret = snd_soc_read(codec, reg); - if (ret < 0) - return ret; - - old = ret; - new = (old & ~mask) | (value & mask); - change = old != new; - if (change) - ret = snd_soc_write(codec, reg, new); - } - - if (ret < 0) - return ret; - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_update_bits); - -/** - * snd_soc_update_bits_locked - update codec register bits - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Writes new register value, and takes the codec mutex. - * - * Returns 1 for change else 0. - */ -int snd_soc_update_bits_locked(struct snd_soc_codec *codec, - unsigned short reg, unsigned int mask, - unsigned int value) -{ - int change; - - mutex_lock(&codec->mutex); - change = snd_soc_update_bits(codec, reg, mask, value); - mutex_unlock(&codec->mutex); - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); - -/** - * snd_soc_test_bits - test register for change - * @codec: audio codec - * @reg: codec register - * @mask: register mask - * @value: new value - * - * Tests a register with a new value and checks if the new value is - * different from the old value. - * - * Returns 1 for change else 0. - */ -int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, - unsigned int mask, unsigned int value) -{ - int change; - unsigned int old, new; - - old = snd_soc_read(codec, reg); - new = (old & ~mask) | value; - change = old != new; - - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_test_bits); - -/** - * snd_soc_set_runtime_hwparams - set the runtime hardware parameters - * @substream: the pcm substream - * @hw: the hardware parameters - * - * Sets the substream runtime hardware parameters. - */ -int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, - const struct snd_pcm_hardware *hw) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - runtime->hw.info = hw->info; - runtime->hw.formats = hw->formats; - runtime->hw.period_bytes_min = hw->period_bytes_min; - runtime->hw.period_bytes_max = hw->period_bytes_max; - runtime->hw.periods_min = hw->periods_min; - runtime->hw.periods_max = hw->periods_max; - runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; - runtime->hw.fifo_size = hw->fifo_size; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); - -/** * snd_soc_cnew - create new control * @_template: control template * @data: control private data @@ -2259,7 +1872,6 @@ struct snd_kcontrol_new template; struct snd_kcontrol *kcontrol; char *name = NULL; - int name_len; memcpy(&template, _template, sizeof(template)); template.index = 0; @@ -2268,13 +1880,10 @@ long_name = template.name; if (prefix) { - name_len = strlen(long_name) + strlen(prefix) + 2; - name = kmalloc(name_len, GFP_KERNEL); + name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name); if (!name) return NULL; - snprintf(name, name_len, "%s %s", prefix, long_name); - template.name = name; } else { template.name = long_name; @@ -2308,6 +1917,41 @@ 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. + * + * @component: Component to add controls to + * @controls: Array of controls to add + * @num_controls: Number of elements in the array + * + * Return: 0 for success, else error. + */ +int snd_soc_add_component_controls(struct snd_soc_component *component, + const struct snd_kcontrol_new *controls, unsigned int num_controls) +{ + struct snd_card *card = component->card->snd_card; + + return snd_soc_add_controls(card, component->dev, controls, + num_controls, component->name_prefix, component); +} +EXPORT_SYMBOL_GPL(snd_soc_add_component_controls); + /** * snd_soc_add_codec_controls - add an array of controls to a codec. * Convenience function to add a list of controls. Many codecs were @@ -2320,12 +1964,10 @@ * Return 0 for success, else error. */ int snd_soc_add_codec_controls(struct snd_soc_codec *codec, - const struct snd_kcontrol_new *controls, int num_controls) + const struct snd_kcontrol_new *controls, unsigned int num_controls) { - struct snd_card *card = codec->card->snd_card; - - return snd_soc_add_controls(card, codec->dev, controls, num_controls, - codec->name_prefix, codec); + return snd_soc_add_component_controls(&codec->component, controls, + num_controls); } EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); @@ -2340,12 +1982,10 @@ * Return 0 for success, else error. */ int snd_soc_add_platform_controls(struct snd_soc_platform *platform, - const struct snd_kcontrol_new *controls, int num_controls) + const struct snd_kcontrol_new *controls, unsigned int num_controls) { - struct snd_card *card = platform->card->snd_card; - - return snd_soc_add_controls(card, platform->dev, controls, num_controls, - NULL, platform); + return snd_soc_add_component_controls(&platform->component, controls, + num_controls); } EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); @@ -2382,7 +2022,7 @@ int snd_soc_add_dai_controls(struct snd_soc_dai *dai, const struct snd_kcontrol_new *controls, int num_controls) { - struct snd_card *card = dai->card->snd_card; + struct snd_card *card = dai->component->card->snd_card; return snd_soc_add_controls(card, dai->dev, controls, num_controls, NULL, dai); @@ -2390,971 +2030,6 @@ EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); /** - * snd_soc_info_enum_double - enumerated double mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a double enumerated - * mixer control. - * - * Returns 0 for success. - */ -int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - uinfo->count = e->shift_l == e->shift_r ? 1 : 2; - uinfo->value.enumerated.items = e->max; - - if (uinfo->value.enumerated.item > e->max - 1) - uinfo->value.enumerated.item = e->max - 1; - strcpy(uinfo->value.enumerated.name, - e->texts[uinfo->value.enumerated.item]); - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); - -/** - * snd_soc_get_enum_double - enumerated double mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a double enumerated mixer. - * - * Returns 0 for success. - */ -int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int val; - - val = snd_soc_read(codec, e->reg); - ucontrol->value.enumerated.item[0] - = (val >> e->shift_l) & e->mask; - if (e->shift_l != e->shift_r) - ucontrol->value.enumerated.item[1] = - (val >> e->shift_r) & e->mask; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); - -/** - * snd_soc_put_enum_double - enumerated double mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a double enumerated mixer. - * - * Returns 0 for success. - */ -int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int val; - unsigned int mask; - - if (ucontrol->value.enumerated.item[0] > e->max - 1) - return -EINVAL; - val = ucontrol->value.enumerated.item[0] << e->shift_l; - mask = e->mask << e->shift_l; - if (e->shift_l != e->shift_r) { - if (ucontrol->value.enumerated.item[1] > e->max - 1) - return -EINVAL; - val |= ucontrol->value.enumerated.item[1] << e->shift_r; - mask |= e->mask << e->shift_r; - } - - return snd_soc_update_bits_locked(codec, e->reg, mask, val); -} -EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); - -/** - * snd_soc_get_value_enum_double - semi enumerated double mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a double semi enumerated mixer. - * - * Semi enumerated mixer: the enumerated items are referred as values. Can be - * used for handling bitfield coded enumeration for example. - * - * Returns 0 for success. - */ -int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int reg_val, val, mux; - - reg_val = snd_soc_read(codec, e->reg); - val = (reg_val >> e->shift_l) & e->mask; - for (mux = 0; mux < e->max; mux++) { - if (val == e->values[mux]) - break; - } - ucontrol->value.enumerated.item[0] = mux; - if (e->shift_l != e->shift_r) { - val = (reg_val >> e->shift_r) & e->mask; - for (mux = 0; mux < e->max; mux++) { - if (val == e->values[mux]) - break; - } - ucontrol->value.enumerated.item[1] = mux; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); - -/** - * snd_soc_put_value_enum_double - semi enumerated double mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a double semi enumerated mixer. - * - * Semi enumerated mixer: the enumerated items are referred as values. Can be - * used for handling bitfield coded enumeration for example. - * - * Returns 0 for success. - */ -int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int val; - unsigned int mask; - - if (ucontrol->value.enumerated.item[0] > e->max - 1) - return -EINVAL; - val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; - mask = e->mask << e->shift_l; - if (e->shift_l != e->shift_r) { - if (ucontrol->value.enumerated.item[1] > e->max - 1) - return -EINVAL; - val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; - mask |= e->mask << e->shift_r; - } - - return snd_soc_update_bits_locked(codec, e->reg, mask, val); -} -EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); - -/** - * snd_soc_info_enum_ext - external enumerated single mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about an external enumerated - * single mixer. - * - * Returns 0 for success. - */ -int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; - uinfo->count = 1; - uinfo->value.enumerated.items = e->max; - - if (uinfo->value.enumerated.item > e->max - 1) - uinfo->value.enumerated.item = e->max - 1; - strcpy(uinfo->value.enumerated.name, - e->texts[uinfo->value.enumerated.item]); - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); - -/** - * snd_soc_info_volsw_ext - external single mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a single external mixer control. - * - * Returns 0 for success. - */ -int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - int max = kcontrol->private_value; - - if (max == 1 && !strstr(kcontrol->id.name, " Volume")) - uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; - else - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - - uinfo->count = 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = max; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); - -/** - * snd_soc_info_volsw - single mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a single mixer control, or a double - * mixer control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int platform_max; - - if (!mc->platform_max) - mc->platform_max = mc->max; - platform_max = mc->platform_max; - - if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) - uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; - else - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - - uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = platform_max; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw); - -/** - * snd_soc_get_volsw - single mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - - ucontrol->value.integer.value[0] = - (snd_soc_read(codec, reg) >> shift) & mask; - if (invert) - ucontrol->value.integer.value[0] = - max - ucontrol->value.integer.value[0]; - - if (snd_soc_volsw_is_stereo(mc)) { - if (reg == reg2) - ucontrol->value.integer.value[1] = - (snd_soc_read(codec, reg) >> rshift) & mask; - else - ucontrol->value.integer.value[1] = - (snd_soc_read(codec, reg2) >> shift) & mask; - if (invert) - ucontrol->value.integer.value[1] = - max - ucontrol->value.integer.value[1]; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw); - -/** - * snd_soc_put_volsw - single mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - int err; - bool type_2r = 0; - unsigned int val2 = 0; - unsigned int val, val_mask; - - val = (ucontrol->value.integer.value[0] & mask); - if (invert) - val = max - val; - val_mask = mask << shift; - val = val << shift; - if (snd_soc_volsw_is_stereo(mc)) { - val2 = (ucontrol->value.integer.value[1] & mask); - if (invert) - val2 = max - val2; - if (reg == reg2) { - val_mask |= mask << rshift; - val |= val2 << rshift; - } else { - val2 = val2 << shift; - type_2r = 1; - } - } - err = snd_soc_update_bits_locked(codec, reg, val_mask, val); - if (err < 0) - return err; - - if (type_2r) - err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); - - return err; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw); - -/** - * snd_soc_get_volsw_sx - single mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - int mask = (1 << (fls(min + max) - 1)) - 1; - - ucontrol->value.integer.value[0] = - ((snd_soc_read(codec, reg) >> shift) - min) & mask; - - if (snd_soc_volsw_is_stereo(mc)) - ucontrol->value.integer.value[1] = - ((snd_soc_read(codec, reg2) >> rshift) - min) & mask; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); - -/** - * snd_soc_put_volsw_sx - double mixer set callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to set the value of a double mixer control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - int mask = (1 << (fls(min + max) - 1)) - 1; - int err = 0; - unsigned short val, val_mask, val2 = 0; - - val_mask = mask << shift; - val = (ucontrol->value.integer.value[0] + min) & mask; - val = val << shift; - - err = snd_soc_update_bits_locked(codec, reg, val_mask, val); - if (err < 0) - return err; - - if (snd_soc_volsw_is_stereo(mc)) { - val_mask = mask << rshift; - val2 = (ucontrol->value.integer.value[1] + min) & mask; - val2 = val2 << rshift; - - if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2)) - return err; - } - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); - -/** - * snd_soc_info_volsw_s8 - signed mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a signed mixer control. - * - * Returns 0 for success. - */ -int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int platform_max; - int min = mc->min; - - if (!mc->platform_max) - mc->platform_max = mc->max; - platform_max = mc->platform_max; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 2; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = platform_max - min; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); - -/** - * snd_soc_get_volsw_s8 - signed mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a signed mixer control. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - int min = mc->min; - int val = snd_soc_read(codec, reg); - - ucontrol->value.integer.value[0] = - ((signed char)(val & 0xff))-min; - ucontrol->value.integer.value[1] = - ((signed char)((val >> 8) & 0xff))-min; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); - -/** - * snd_soc_put_volsw_sgn - signed mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a signed mixer control. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - int min = mc->min; - unsigned int val; - - val = (ucontrol->value.integer.value[0]+min) & 0xff; - val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; - - return snd_soc_update_bits_locked(codec, reg, 0xffff, val); -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); - -/** - * snd_soc_info_volsw_range - single mixer info callback with range. - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information, within a range, about a single - * mixer control. - * - * returns 0 for success. - */ -int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int platform_max; - int min = mc->min; - - if (!mc->platform_max) - mc->platform_max = mc->max; - platform_max = mc->platform_max; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = platform_max - min; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); - -/** - * snd_soc_put_volsw_range - single mixer put value callback with range. - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value, within a range, for a single mixer control. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int rreg = mc->rreg; - unsigned int shift = mc->shift; - int min = mc->min; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - unsigned int val, val_mask; - int ret; - - val = ((ucontrol->value.integer.value[0] + min) & mask); - if (invert) - val = max - val; - val_mask = mask << shift; - val = val << shift; - - ret = snd_soc_update_bits_locked(codec, reg, val_mask, val); - if (ret < 0) - return ret; - - if (snd_soc_volsw_is_stereo(mc)) { - val = ((ucontrol->value.integer.value[1] + min) & mask); - if (invert) - val = max - val; - val_mask = mask << shift; - val = val << shift; - - ret = snd_soc_update_bits_locked(codec, rreg, val_mask, val); - } - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); - -/** - * snd_soc_get_volsw_range - single mixer get callback with range - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value, within a range, of a single mixer control. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int rreg = mc->rreg; - unsigned int shift = mc->shift; - int min = mc->min; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - - ucontrol->value.integer.value[0] = - (snd_soc_read(codec, reg) >> shift) & mask; - if (invert) - ucontrol->value.integer.value[0] = - max - ucontrol->value.integer.value[0]; - ucontrol->value.integer.value[0] = - ucontrol->value.integer.value[0] - min; - - if (snd_soc_volsw_is_stereo(mc)) { - ucontrol->value.integer.value[1] = - (snd_soc_read(codec, rreg) >> shift) & mask; - if (invert) - ucontrol->value.integer.value[1] = - max - ucontrol->value.integer.value[1]; - ucontrol->value.integer.value[1] = - ucontrol->value.integer.value[1] - min; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); - -/** - * snd_soc_limit_volume - Set new limit to an existing volume control. - * - * @codec: where to look for the control - * @name: Name of the control - * @max: new maximum limit - * - * Return 0 for success, else error. - */ -int snd_soc_limit_volume(struct snd_soc_codec *codec, - const char *name, int max) -{ - struct snd_card *card = codec->card->snd_card; - struct snd_kcontrol *kctl; - struct soc_mixer_control *mc; - int found = 0; - int ret = -EINVAL; - - /* Sanity check for name and max */ - if (unlikely(!name || max <= 0)) - return -EINVAL; - - list_for_each_entry(kctl, &card->controls, list) { - if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { - found = 1; - break; - } - } - if (found) { - mc = (struct soc_mixer_control *)kctl->private_value; - if (max <= mc->max) { - mc->platform_max = max; - ret = 0; - } - } - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_limit_volume); - -int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct soc_bytes *params = (void *)kcontrol->private_value; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; - uinfo->count = params->num_regs * codec->val_bytes; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_info); - -int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_bytes *params = (void *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - int ret; - - if (codec->using_regmap) - ret = regmap_raw_read(codec->control_data, params->base, - ucontrol->value.bytes.data, - params->num_regs * codec->val_bytes); - else - ret = -EINVAL; - - /* Hide any masked bytes to ensure consistent data reporting */ - if (ret == 0 && params->mask) { - switch (codec->val_bytes) { - case 1: - ucontrol->value.bytes.data[0] &= ~params->mask; - break; - case 2: - ((u16 *)(&ucontrol->value.bytes.data))[0] - &= ~params->mask; - break; - case 4: - ((u32 *)(&ucontrol->value.bytes.data))[0] - &= ~params->mask; - break; - default: - return -EINVAL; - } - } - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_get); - -int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_bytes *params = (void *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - int ret, len; - unsigned int val; - void *data; - - if (!codec->using_regmap) - return -EINVAL; - - len = params->num_regs * codec->val_bytes; - - data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); - if (!data) - return -ENOMEM; - - /* - * If we've got a mask then we need to preserve the register - * bits. We shouldn't modify the incoming data so take a - * copy. - */ - if (params->mask) { - ret = regmap_read(codec->control_data, params->base, &val); - if (ret != 0) - goto out; - - val &= params->mask; - - switch (codec->val_bytes) { - case 1: - ((u8 *)data)[0] &= ~params->mask; - ((u8 *)data)[0] |= val; - break; - case 2: - ((u16 *)data)[0] &= cpu_to_be16(~params->mask); - ((u16 *)data)[0] |= cpu_to_be16(val); - break; - case 4: - ((u32 *)data)[0] &= cpu_to_be32(~params->mask); - ((u32 *)data)[0] |= cpu_to_be32(val); - break; - default: - ret = -EINVAL; - goto out; - } - } - - ret = regmap_raw_write(codec->control_data, params->base, - data, len); - -out: - kfree(data); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_put); - -/** - * snd_soc_info_xr_sx - signed multi register info callback - * @kcontrol: mreg control - * @uinfo: control element information - * - * Callback to provide information of a control that can - * span multiple codec registers which together - * forms a single signed value in a MSB/LSB manner. - * - * Returns 0 for success. - */ -int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - uinfo->value.integer.min = mc->min; - uinfo->value.integer.max = mc->max; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); - -/** - * snd_soc_get_xr_sx - signed multi register get callback - * @kcontrol: mreg control - * @ucontrol: control element information - * - * Callback to get the value of a control that can span - * multiple codec registers which together forms a single - * signed value in a MSB/LSB manner. The control supports - * specifying total no of bits used to allow for bitfields - * across the multiple codec registers. - * - * Returns 0 for success. - */ -int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int regbase = mc->regbase; - unsigned int regcount = mc->regcount; - unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; - unsigned int regwmask = (1<<regwshift)-1; - unsigned int invert = mc->invert; - unsigned long mask = (1UL<<mc->nbits)-1; - long min = mc->min; - long max = mc->max; - long val = 0; - unsigned long regval; - unsigned int i; - - for (i = 0; i < regcount; i++) { - regval = snd_soc_read(codec, regbase+i) & regwmask; - val |= regval << (regwshift*(regcount-i-1)); - } - val &= mask; - if (min < 0 && val > max) - val |= ~mask; - if (invert) - val = max - val; - ucontrol->value.integer.value[0] = val; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); - -/** - * snd_soc_put_xr_sx - signed multi register get callback - * @kcontrol: mreg control - * @ucontrol: control element information - * - * Callback to set the value of a control that can span - * multiple codec registers which together forms a single - * signed value in a MSB/LSB manner. The control supports - * specifying total no of bits used to allow for bitfields - * across the multiple codec registers. - * - * Returns 0 for success. - */ -int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int regbase = mc->regbase; - unsigned int regcount = mc->regcount; - unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; - unsigned int regwmask = (1<<regwshift)-1; - unsigned int invert = mc->invert; - unsigned long mask = (1UL<<mc->nbits)-1; - long max = mc->max; - long val = ucontrol->value.integer.value[0]; - unsigned int i, regval, regmask; - int err; - - if (invert) - val = max - val; - val &= mask; - for (i = 0; i < regcount; i++) { - regval = (val >> (regwshift*(regcount-i-1))) & regwmask; - regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; - err = snd_soc_update_bits_locked(codec, regbase+i, - regmask, regval); - if (err < 0) - return err; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); - -/** - * snd_soc_get_strobe - strobe get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback get the value of a strobe mixer control. - * - * Returns 0 for success. - */ -int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int shift = mc->shift; - unsigned int mask = 1 << shift; - unsigned int invert = mc->invert != 0; - unsigned int val = snd_soc_read(codec, reg) & mask; - - if (shift != 0 && val != 0) - val = val >> shift; - ucontrol->value.enumerated.item[0] = val ^ invert; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_strobe); - -/** - * snd_soc_put_strobe - strobe put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback strobe a register bit to high then low (or the inverse) - * in one pass of a single mixer enum control. - * - * Returns 1 for success. - */ -int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int shift = mc->shift; - unsigned int mask = 1 << shift; - unsigned int invert = mc->invert != 0; - unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; - unsigned int val1 = (strobe ^ invert) ? mask : 0; - unsigned int val2 = (strobe ^ invert) ? 0 : mask; - int err; - - err = snd_soc_update_bits_locked(codec, reg, mask, val1); - if (err < 0) - return err; - - err = snd_soc_update_bits_locked(codec, reg, mask, val2); - return err; -} -EXPORT_SYMBOL_GPL(snd_soc_put_strobe); - -/** * snd_soc_dai_set_sysclk - configure DAI system or master clock. * @dai: DAI * @clk_id: DAI specific clock ID @@ -3372,7 +2047,7 @@ return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, freq, dir); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); @@ -3393,7 +2068,7 @@ return codec->driver->set_sysclk(codec, clk_id, source, freq, dir); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); @@ -3463,6 +2138,22 @@ EXPORT_SYMBOL_GPL(snd_soc_codec_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 && 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. @@ -3480,24 +2171,69 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); /** - * snd_soc_dai_set_tdm_slot - configure DAI TDM. - * @dai: DAI + * 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. * - * Configures a DAI for TDM operation. Both mask and slots are codec and DAI - * specific. + * 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 && 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 && dai->driver->ops->set_tdm_slot) return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, slots, slot_width); else - return -EINVAL; + return -ENOTSUPP; } EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); @@ -3565,6 +2301,33 @@ } EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); +static int snd_soc_init_multicodec(struct snd_soc_card *card, + struct snd_soc_dai_link *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; + + 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; + } + + if (!dai_link->codecs) { + dev_err(card->dev, "ASoC: DAI link has no CODECs\n"); + return -EINVAL; + } + + return 0; +} + /** * snd_soc_register_card - Register a card with the ASoC core * @@ -3573,7 +2336,7 @@ */ int snd_soc_register_card(struct snd_soc_card *card) { - int i, ret; + int i, j, ret; if (!card->name || !card->dev) return -EINVAL; @@ -3581,20 +2344,29 @@ for (i = 0; i < card->num_links; i++) { struct snd_soc_dai_link *link = &card->dai_link[i]; - /* - * Codec must be specified by 1 of name or OF node, - * not both or neither. - */ - if (!!link->codec_name == !!link->codec_of_node) { - dev_err(card->dev, "ASoC: Neither/both codec" - " name/of_node are set for %s\n", link->name); - return -EINVAL; + ret = snd_soc_init_multicodec(card, link); + if (ret) { + dev_err(card->dev, "ASoC: failed to init multicodec\n"); + return ret; } - /* Codec DAI name must be specified */ - if (!link->codec_dai_name) { - dev_err(card->dev, "ASoC: codec_dai_name not" - " set for %s\n", link->name); - return -EINVAL; + + for (j = 0; j < link->num_codecs; j++) { + /* + * Codec must be specified by 1 of name or OF node, + * not both or neither. + */ + if (!!link->codecs[j].name == + !!link->codecs[j].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 (!link->codecs[j].dai_name) { + dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n", + link->name); + return -EINVAL; + } } /* @@ -3602,8 +2374,9 @@ * 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); + dev_err(card->dev, + "ASoC: Both platform name/of_node are set for %s\n", + link->name); return -EINVAL; } @@ -3613,8 +2386,9 @@ * name alone.. */ 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); + dev_err(card->dev, + "ASoC: Neither/both cpu name/of_node are set for %s\n", + link->name); return -EINVAL; } /* @@ -3623,8 +2397,9 @@ */ 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); + dev_err(card->dev, + "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", + link->name); return -EINVAL; } } @@ -3633,8 +2408,6 @@ snd_soc_initialize_card_lists(card); - soc_init_card_debugfs(card); - card->rtd = devm_kzalloc(card->dev, sizeof(struct snd_soc_pcm_runtime) * (card->num_links + card->num_aux_devs), @@ -3644,18 +2417,45 @@ card->num_rtd = 0; card->rtd_aux = &card->rtd[card->num_links]; - for (i = 0; i < card->num_links; i++) + for (i = 0; i < card->num_links; i++) { + card->rtd[i].card = card; card->rtd[i].dai_link = &card->dai_link[i]; + card->rtd[i].codec_dais = devm_kzalloc(card->dev, + sizeof(struct snd_soc_dai *) * + (card->rtd[i].dai_link->num_codecs), + GFP_KERNEL); + if (card->rtd[i].codec_dais == NULL) + return -ENOMEM; + } + + for (i = 0; i < card->num_aux_devs; i++) + card->rtd_aux[i].card = card; - INIT_LIST_HEAD(&card->list); INIT_LIST_HEAD(&card->dapm_dirty); + INIT_LIST_HEAD(&card->dobj_list); card->instantiated = 0; mutex_init(&card->mutex); mutex_init(&card->dapm_mutex); ret = snd_soc_instantiate_card(card); if (ret != 0) - soc_cleanup_card_debugfs(card); + return ret; + + /* deactivate pins to sleep state */ + for (i = 0; i < card->num_rtd; i++) { + struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int j; + + for (j = 0; j < rtd->num_codecs; j++) { + struct snd_soc_dai *codec_dai = rtd->codec_dais[j]; + 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; } @@ -3669,9 +2469,12 @@ */ int snd_soc_unregister_card(struct snd_soc_card *card) { - if (card->instantiated) + if (card->instantiated) { + card->instantiated = false; + snd_soc_dapm_shutdown(card); soc_cleanup_card_resources(card); - dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); + dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name); + } return 0; } @@ -3728,8 +2531,9 @@ struct snd_soc_dai_driver *dai_drv) { if (dai_drv->name == NULL) { - dev_err(dev, "ASoC: error - multiple DAI %s registered with" - " no name\n", dev_name(dev)); + dev_err(dev, + "ASoC: error - multiple DAI %s registered with no name\n", + dev_name(dev)); return NULL; } @@ -3737,98 +2541,46 @@ } /** - * snd_soc_register_dai - Register a DAI with the ASoC core + * snd_soc_unregister_dai - Unregister DAIs from the ASoC core * - * @dai: DAI to register + * @component: The component for which the DAIs should be unregistered */ -static int snd_soc_register_dai(struct device *dev, - struct snd_soc_dai_driver *dai_drv) +static void snd_soc_unregister_dais(struct snd_soc_component *component) { - struct snd_soc_codec *codec; - struct snd_soc_dai *dai; - - dev_dbg(dev, "ASoC: dai register %s\n", dev_name(dev)); + struct snd_soc_dai *dai, *_dai; - dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); - if (dai == NULL) - return -ENOMEM; - - /* create DAI component name */ - dai->name = fmt_single_name(dev, &dai->id); - if (dai->name == NULL) { + list_for_each_entry_safe(dai, _dai, &component->dai_list, list) { + dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n", + dai->name); + list_del(&dai->list); + kfree(dai->name); kfree(dai); - return -ENOMEM; - } - - dai->dev = dev; - dai->driver = dai_drv; - dai->dapm.dev = dev; - if (!dai->driver->ops) - dai->driver->ops = &null_dai_ops; - - mutex_lock(&client_mutex); - - list_for_each_entry(codec, &codec_list, list) { - if (codec->dev == dev) { - dev_dbg(dev, "ASoC: Mapped DAI %s to CODEC %s\n", - dai->name, codec->name); - dai->codec = codec; - break; - } - } - - if (!dai->codec) - dai->dapm.idle_bias_off = 1; - - list_add(&dai->list, &dai_list); - - mutex_unlock(&client_mutex); - - dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); - - return 0; -} - -/** - * snd_soc_unregister_dai - Unregister a DAI from the ASoC core - * - * @dai: DAI to unregister - */ -static void snd_soc_unregister_dai(struct device *dev) -{ - struct snd_soc_dai *dai; - - list_for_each_entry(dai, &dai_list, list) { - if (dev == dai->dev) - goto found; } - return; - -found: - mutex_lock(&client_mutex); - list_del(&dai->list); - mutex_unlock(&client_mutex); - - dev_dbg(dev, "ASoC: Unregistered DAI '%s'\n", dai->name); - kfree(dai->name); - kfree(dai); } /** - * snd_soc_register_dais - Register multiple DAIs with the ASoC core + * snd_soc_register_dais - Register a DAI with the ASoC core * - * @dai: Array of DAIs to register + * @component: The component the DAIs are registered for + * @dai_drv: DAI driver to use for the DAIs * @count: Number of DAIs + * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the + * parent's name. */ -static int snd_soc_register_dais(struct device *dev, - struct snd_soc_dai_driver *dai_drv, size_t count) +static int snd_soc_register_dais(struct snd_soc_component *component, + struct snd_soc_dai_driver *dai_drv, size_t count, + bool legacy_dai_naming) { - struct snd_soc_codec *codec; + struct device *dev = component->dev; struct snd_soc_dai *dai; - int i, ret = 0; + unsigned int i; + int ret; dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count); + component->dai_drv = dai_drv; + component->num_dai = count; + for (i = 0; i < count; i++) { dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); @@ -3837,96 +2589,297 @@ goto err; } - /* create DAI component name */ - dai->name = fmt_multiple_name(dev, &dai_drv[i]); + /* + * Back in the old days when we still had component-less DAIs, + * instead of having a static name, component-less DAIs would + * inherit the name of the parent device so it is possible to + * register multiple instances of the DAI. We still need to keep + * the same naming style even though those DAIs are not + * component-less anymore. + */ + if (count == 1 && legacy_dai_naming && + (dai_drv[i].id == 0 || dai_drv[i].name == NULL)) { + dai->name = fmt_single_name(dev, &dai->id); + } else { + dai->name = fmt_multiple_name(dev, &dai_drv[i]); + if (dai_drv[i].id) + dai->id = dai_drv[i].id; + else + dai->id = i; + } if (dai->name == NULL) { kfree(dai); - ret = -EINVAL; + ret = -ENOMEM; goto err; } + dai->component = component; dai->dev = dev; dai->driver = &dai_drv[i]; - if (dai->driver->id) - dai->id = dai->driver->id; - else - dai->id = i; - dai->dapm.dev = dev; if (!dai->driver->ops) dai->driver->ops = &null_dai_ops; - mutex_lock(&client_mutex); + list_add(&dai->list, &component->dai_list); - list_for_each_entry(codec, &codec_list, list) { - if (codec->dev == dev) { - dev_dbg(dev, "ASoC: Mapped DAI %s to " - "CODEC %s\n", dai->name, codec->name); - dai->codec = codec; - break; - } - } + dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name); + } + + return 0; + +err: + snd_soc_unregister_dais(component); + + return ret; +} - if (!dai->codec) - dai->dapm.idle_bias_off = 1; +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; - list_add(&dai->list, &dai_list); + return component->driver->stream_event(component, event); +} - mutex_unlock(&client_mutex); +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; - dev_dbg(dai->dev, "ASoC: Registered DAI '%s'\n", dai->name); + 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; + component->probe = component->driver->probe; + component->remove = component->driver->remove; + + dapm = &component->dapm; + dapm->dev = dev; + dapm->component = component; + dapm->bias_level = SND_SOC_BIAS_OFF; + dapm->idle_bias_off = true; + if (driver->seq_notifier) + dapm->seq_notifier = snd_soc_component_seq_notifier; + if (driver->stream_event) + dapm->stream_event = snd_soc_component_stream_event; + + component->controls = driver->controls; + component->num_controls = driver->num_controls; + component->dapm_widgets = driver->dapm_widgets; + component->num_dapm_widgets = driver->num_dapm_widgets; + component->dapm_routes = driver->dapm_routes; + component->num_dapm_routes = driver->num_dapm_routes; + + INIT_LIST_HEAD(&component->dai_list); + mutex_init(&component->io_mutex); + return 0; +} -err: - for (i--; i >= 0; i--) - snd_soc_unregister_dai(dev); +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_unlocked(struct snd_soc_component *component) +{ + if (!component->write && !component->read) { + if (!component->regmap) + component->regmap = dev_get_regmap(component->dev, NULL); + if (component->regmap) + snd_soc_component_setup_regmap(component); + } + + list_add(&component->list, &component_list); + INIT_LIST_HEAD(&component->dobj_list); +} +static void snd_soc_component_add(struct snd_soc_component *component) +{ + mutex_lock(&client_mutex); + snd_soc_component_add_unlocked(component); + 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) +{ + list_del(&component->list); +} + +int snd_soc_register_component(struct device *dev, + const struct snd_soc_component_driver *cmpnt_drv, + struct snd_soc_dai_driver *dai_drv, + int num_dai) +{ + struct snd_soc_component *cmpnt; + int ret; + + cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL); + if (!cmpnt) { + dev_err(dev, "ASoC: Failed to allocate memory\n"); + return -ENOMEM; + } + + ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev); + if (ret) + goto err_free; + + cmpnt->ignore_pmdown_time = true; + cmpnt->registered_as_component = true; + + ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true); + if (ret < 0) { + dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); + goto err_cleanup; + } + + snd_soc_component_add(cmpnt); + + return 0; + +err_cleanup: + snd_soc_component_cleanup(cmpnt); +err_free: + kfree(cmpnt); return ret; } +EXPORT_SYMBOL_GPL(snd_soc_register_component); /** - * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core + * snd_soc_unregister_component - Unregister a component from the ASoC core * - * @dai: Array of DAIs to unregister - * @count: Number of DAIs + * @dev: The device to unregister */ -static void snd_soc_unregister_dais(struct device *dev, size_t count) +void snd_soc_unregister_component(struct device *dev) { - int i; + struct snd_soc_component *cmpnt; + + mutex_lock(&client_mutex); + list_for_each_entry(cmpnt, &component_list, list) { + if (dev == cmpnt->dev && cmpnt->registered_as_component) + goto found; + } + mutex_unlock(&client_mutex); + return; + +found: + snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL); + snd_soc_component_del_unlocked(cmpnt); + mutex_unlock(&client_mutex); + snd_soc_component_cleanup(cmpnt); + kfree(cmpnt); +} +EXPORT_SYMBOL_GPL(snd_soc_unregister_component); + +static int snd_soc_platform_drv_probe(struct snd_soc_component *component) +{ + struct snd_soc_platform *platform = snd_soc_component_to_platform(component); - for (i = 0; i < count; i++) - snd_soc_unregister_dai(dev); + return platform->driver->probe(platform); +} + +static void snd_soc_platform_drv_remove(struct snd_soc_component *component) +{ + struct snd_soc_platform *platform = snd_soc_component_to_platform(component); + + platform->driver->remove(platform); } /** * snd_soc_add_platform - Add a platform to the ASoC core * @dev: The parent device for the platform * @platform: The platform to add - * @platform_driver: The driver for the platform + * @platform_drv: The driver for the platform */ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, const struct snd_soc_platform_driver *platform_drv) { - /* create platform component name */ - platform->name = fmt_single_name(dev, &platform->id); - if (platform->name == NULL) { - kfree(platform); - return -ENOMEM; - } + int ret; + + ret = snd_soc_component_initialize(&platform->component, + &platform_drv->component_driver, dev); + if (ret) + return ret; platform->dev = dev; platform->driver = platform_drv; - platform->dapm.dev = dev; - platform->dapm.platform = platform; - platform->dapm.stream_event = platform_drv->stream_event; - mutex_init(&platform->mutex); + + if (platform_drv->probe) + platform->component.probe = snd_soc_platform_drv_probe; + if (platform_drv->remove) + platform->component.remove = snd_soc_platform_drv_remove; + +#ifdef CONFIG_DEBUG_FS + platform->component.debugfs_prefix = "platform"; +#endif mutex_lock(&client_mutex); + snd_soc_component_add_unlocked(&platform->component); list_add(&platform->list, &platform_list); mutex_unlock(&client_mutex); - dev_dbg(dev, "ASoC: Registered platform '%s'\n", platform->name); + dev_dbg(dev, "ASoC: Registered platform '%s'\n", + platform->component.name); return 0; } @@ -3935,7 +2888,8 @@ /** * snd_soc_register_platform - Register a platform with the ASoC core * - * @platform: platform to register + * @dev: The device for the platform + * @platform_drv: The driver for the platform */ int snd_soc_register_platform(struct device *dev, const struct snd_soc_platform_driver *platform_drv) @@ -3963,13 +2917,16 @@ */ void snd_soc_remove_platform(struct snd_soc_platform *platform) { + mutex_lock(&client_mutex); list_del(&platform->list); + snd_soc_component_del_unlocked(&platform->component); mutex_unlock(&client_mutex); dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n", - platform->name); - kfree(platform->name); + platform->component.name); + + snd_soc_component_cleanup(&platform->component); } EXPORT_SYMBOL_GPL(snd_soc_remove_platform); @@ -3977,10 +2934,14 @@ { struct snd_soc_platform *platform; + mutex_lock(&client_mutex); list_for_each_entry(platform, &platform_list, list) { - if (dev == platform->dev) + if (dev == platform->dev) { + mutex_unlock(&client_mutex); return platform; + } } + mutex_unlock(&client_mutex); return NULL; } @@ -3989,7 +2950,7 @@ /** * snd_soc_unregister_platform - Unregister a platform from the ASoC core * - * @platform: platform to unregister + * @dev: platform to unregister */ void snd_soc_unregister_platform(struct device *dev) { @@ -4037,18 +2998,62 @@ stream->formats |= codec_format_map[i]; } +static int snd_soc_codec_drv_probe(struct snd_soc_component *component) +{ + struct snd_soc_codec *codec = snd_soc_component_to_codec(component); + + return codec->driver->probe(codec); +} + +static void snd_soc_codec_drv_remove(struct snd_soc_component *component) +{ + struct snd_soc_codec *codec = snd_soc_component_to_codec(component); + + codec->driver->remove(codec); +} + +static int snd_soc_codec_drv_write(struct snd_soc_component *component, + unsigned int reg, unsigned int val) +{ + struct snd_soc_codec *codec = snd_soc_component_to_codec(component); + + return codec->driver->write(codec, reg, val); +} + +static int snd_soc_codec_drv_read(struct snd_soc_component *component, + unsigned int reg, unsigned int *val) +{ + struct snd_soc_codec *codec = snd_soc_component_to_codec(component); + + *val = codec->driver->read(codec, reg); + + return 0; +} + +static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); + + return codec->driver->set_bias_level(codec, level); +} + /** * snd_soc_register_codec - Register a codec with the ASoC core * - * @codec: codec to register + * @dev: The parent device for this codec + * @codec_drv: Codec driver + * @dai_drv: The associated DAI driver + * @num_dai: Number of DAIs */ int snd_soc_register_codec(struct device *dev, const struct snd_soc_codec_driver *codec_drv, struct snd_soc_dai_driver *dai_drv, int num_dai) { - size_t reg_size; + struct snd_soc_dapm_context *dapm; struct snd_soc_codec *codec; + struct snd_soc_dai *dai; int ret, i; dev_dbg(dev, "codec register %s\n", dev_name(dev)); @@ -4057,89 +3062,81 @@ if (codec == NULL) return -ENOMEM; - /* create CODEC component name */ - codec->name = fmt_single_name(dev, &codec->id); - if (codec->name == NULL) { - ret = -ENOMEM; - goto fail_codec; - } + codec->component.codec = codec; - if (codec_drv->compress_type) - codec->compress_type = codec_drv->compress_type; - else - codec->compress_type = SND_SOC_FLAT_COMPRESSION; + ret = snd_soc_component_initialize(&codec->component, + &codec_drv->component_driver, dev); + if (ret) + goto err_free; - codec->write = codec_drv->write; - codec->read = codec_drv->read; - codec->volatile_register = codec_drv->volatile_register; - codec->readable_register = codec_drv->readable_register; - codec->writable_register = codec_drv->writable_register; - codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; - codec->dapm.bias_level = SND_SOC_BIAS_OFF; - codec->dapm.dev = dev; - codec->dapm.codec = codec; - codec->dapm.seq_notifier = codec_drv->seq_notifier; - codec->dapm.stream_event = codec_drv->stream_event; + if (codec_drv->controls) { + codec->component.controls = codec_drv->controls; + codec->component.num_controls = codec_drv->num_controls; + } + if (codec_drv->dapm_widgets) { + codec->component.dapm_widgets = codec_drv->dapm_widgets; + codec->component.num_dapm_widgets = codec_drv->num_dapm_widgets; + } + if (codec_drv->dapm_routes) { + codec->component.dapm_routes = codec_drv->dapm_routes; + codec->component.num_dapm_routes = codec_drv->num_dapm_routes; + } + + if (codec_drv->probe) + codec->component.probe = snd_soc_codec_drv_probe; + if (codec_drv->remove) + codec->component.remove = snd_soc_codec_drv_remove; + if (codec_drv->write) + codec->component.write = snd_soc_codec_drv_write; + if (codec_drv->read) + codec->component.read = snd_soc_codec_drv_read; + codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time; + + dapm = snd_soc_codec_get_dapm(codec); + dapm->idle_bias_off = codec_drv->idle_bias_off; + dapm->suspend_bias_off = codec_drv->suspend_bias_off; + if (codec_drv->seq_notifier) + dapm->seq_notifier = codec_drv->seq_notifier; + if (codec_drv->set_bias_level) + dapm->set_bias_level = snd_soc_codec_set_bias_level; codec->dev = dev; codec->driver = codec_drv; - codec->num_dai = num_dai; - mutex_init(&codec->mutex); + codec->component.val_bytes = codec_drv->reg_word_size; - /* allocate CODEC register cache */ - if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { - reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; - codec->reg_size = reg_size; - /* it is necessary to make a copy of the default register cache - * because in the case of using a compression type that requires - * the default register cache to be marked as the - * kernel might have freed the array by the time we initialize - * the cache. - */ - if (codec_drv->reg_cache_default) { - codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, - reg_size, GFP_KERNEL); - if (!codec->reg_def_copy) { - ret = -ENOMEM; - goto fail_codec_name; - } - } - } +#ifdef CONFIG_DEBUG_FS + codec->component.init_debugfs = soc_init_codec_debugfs; + codec->component.debugfs_prefix = "codec"; +#endif - if (codec_drv->reg_access_size && codec_drv->reg_access_default) { - if (!codec->volatile_register) - codec->volatile_register = snd_soc_default_volatile_register; - if (!codec->readable_register) - codec->readable_register = snd_soc_default_readable_register; - if (!codec->writable_register) - codec->writable_register = snd_soc_default_writable_register; - } + if (codec_drv->get_regmap) + codec->component.regmap = codec_drv->get_regmap(dev); for (i = 0; i < num_dai; i++) { fixup_codec_formats(&dai_drv[i].playback); fixup_codec_formats(&dai_drv[i].capture); } - mutex_lock(&client_mutex); - list_add(&codec->list, &codec_list); - mutex_unlock(&client_mutex); - - /* register any DAIs */ - ret = snd_soc_register_dais(dev, dai_drv, num_dai); + ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false); if (ret < 0) { - dev_err(codec->dev, "ASoC: Failed to regster DAIs: %d\n", ret); - goto fail_codec_name; + dev_err(dev, "ASoC: Failed to register DAIs: %d\n", ret); + goto err_cleanup; } - dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", codec->name); - return 0; + list_for_each_entry(dai, &codec->component.dai_list, list) + dai->codec = codec; -fail_codec_name: mutex_lock(&client_mutex); - list_del(&codec->list); + snd_soc_component_add_unlocked(&codec->component); + list_add(&codec->list, &codec_list); mutex_unlock(&client_mutex); - kfree(codec->name); -fail_codec: + dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", + codec->component.name); + return 0; + +err_cleanup: + snd_soc_component_cleanup(&codec->component); +err_free: kfree(codec); return ret; } @@ -4148,143 +3145,225 @@ /** * snd_soc_unregister_codec - Unregister a codec from the ASoC core * - * @codec: codec to unregister + * @dev: codec to unregister */ void snd_soc_unregister_codec(struct device *dev) { struct snd_soc_codec *codec; + mutex_lock(&client_mutex); list_for_each_entry(codec, &codec_list, list) { if (dev == codec->dev) goto found; } + mutex_unlock(&client_mutex); return; found: - snd_soc_unregister_dais(dev, codec->num_dai); - - mutex_lock(&client_mutex); list_del(&codec->list); + snd_soc_component_del_unlocked(&codec->component); mutex_unlock(&client_mutex); - dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", codec->name); + dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", + codec->component.name); + snd_soc_component_cleanup(&codec->component); snd_soc_cache_exit(codec); - kfree(codec->reg_def_copy); - kfree(codec->name); kfree(codec); } EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); - -/** - * snd_soc_register_component - Register a component with the ASoC core - * - */ -int snd_soc_register_component(struct device *dev, - const struct snd_soc_component_driver *cmpnt_drv, - struct snd_soc_dai_driver *dai_drv, - int num_dai) +/* Retrieve a card's name from device tree */ +int snd_soc_of_parse_card_name(struct snd_soc_card *card, + const char *propname) { - struct snd_soc_component *cmpnt; + struct device_node *np; int ret; - dev_dbg(dev, "component register %s\n", dev_name(dev)); + if (!card->dev) { + pr_err("card->dev is not set before calling %s\n", __func__); + return -EINVAL; + } - cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL); - if (!cmpnt) { - dev_err(dev, "ASoC: Failed to allocate memory\n"); - return -ENOMEM; + np = card->dev->of_node; + + ret = of_property_read_string_index(np, propname, 0, &card->name); + /* + * EINVAL means the property does not exist. This is fine providing + * card->name was previously set, which is checked later in + * snd_soc_register_card. + */ + if (ret < 0 && ret != -EINVAL) { + dev_err(card->dev, + "ASoC: Property '%s' could not be read: %d\n", + propname, ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); + +static const struct snd_soc_dapm_widget simple_widgets[] = { + SND_SOC_DAPM_MIC("Microphone", NULL), + SND_SOC_DAPM_LINE("Line", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_SPK("Speaker", NULL), +}; + +int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, + const char *propname) +{ + struct device_node *np = card->dev->of_node; + struct snd_soc_dapm_widget *widgets; + const char *template, *wname; + int i, j, num_widgets, ret; + + num_widgets = of_property_count_strings(np, propname); + if (num_widgets < 0) { + dev_err(card->dev, + "ASoC: Property '%s' does not exist\n", propname); + return -EINVAL; + } + if (num_widgets & 1) { + dev_err(card->dev, + "ASoC: Property '%s' length is not even\n", propname); + return -EINVAL; } - cmpnt->name = fmt_single_name(dev, &cmpnt->id); - if (!cmpnt->name) { - dev_err(dev, "ASoC: Failed to simplifying name\n"); + 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); + if (!widgets) { + dev_err(card->dev, + "ASoC: Could not allocate memory for widgets\n"); return -ENOMEM; } - cmpnt->dev = dev; - cmpnt->driver = cmpnt_drv; - cmpnt->num_dai = num_dai; + for (i = 0; i < num_widgets; i++) { + 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", + propname, 2 * i, ret); + return -EINVAL; + } - /* - * snd_soc_register_dai() uses fmt_single_name(), and - * snd_soc_register_dais() uses fmt_multiple_name() - * for dai->name which is used for name based matching - */ - if (1 == num_dai) - ret = snd_soc_register_dai(dev, dai_drv); - else - ret = snd_soc_register_dais(dev, dai_drv, num_dai); - if (ret < 0) { - dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret); - goto error_component_name; + for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) { + if (!strncmp(template, simple_widgets[j].name, + strlen(simple_widgets[j].name))) { + widgets[i] = simple_widgets[j]; + break; + } + } + + if (j >= ARRAY_SIZE(simple_widgets)) { + dev_err(card->dev, + "ASoC: DAPM widget '%s' is not supported\n", + template); + return -EINVAL; + } + + ret = of_property_read_string_index(np, propname, + (2 * i) + 1, + &wname); + if (ret) { + dev_err(card->dev, + "ASoC: Property '%s' index %d read error:%d\n", + propname, (2 * i) + 1, ret); + return -EINVAL; + } + + widgets[i].name = wname; } - mutex_lock(&client_mutex); - list_add(&cmpnt->list, &component_list); - mutex_unlock(&client_mutex); + card->of_dapm_widgets = widgets; + card->num_of_dapm_widgets = num_widgets; - dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name); + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets); - return ret; +static int snd_soc_of_get_slot_mask(struct device_node *np, + const char *prop_name, + unsigned int *mask) +{ + u32 val; + const __be32 *of_slot_mask = of_get_property(np, prop_name, &val); + int i; -error_component_name: - kfree(cmpnt->name); + if (!of_slot_mask) + return 0; + val /= sizeof(u32); + for (i = 0; i < val; i++) + if (be32_to_cpup(&of_slot_mask[i])) + *mask |= (1 << i); - return ret; + return val; } -EXPORT_SYMBOL_GPL(snd_soc_register_component); -/** - * snd_soc_unregister_component - Unregister a component from the ASoC core - * - */ -void snd_soc_unregister_component(struct device *dev) +int snd_soc_of_parse_tdm_slot(struct device_node *np, + unsigned int *tx_mask, + unsigned int *rx_mask, + unsigned int *slots, + unsigned int *slot_width) { - struct snd_soc_component *cmpnt; + u32 val; + int ret; - list_for_each_entry(cmpnt, &component_list, list) { - if (dev == cmpnt->dev) - goto found; + if (tx_mask) + snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask); + 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; } - return; -found: - snd_soc_unregister_dais(dev, cmpnt->num_dai); + 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; - mutex_lock(&client_mutex); - list_del(&cmpnt->list); - mutex_unlock(&client_mutex); + if (slot_width) + *slot_width = val; + } - dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name); - kfree(cmpnt->name); + return 0; } -EXPORT_SYMBOL_GPL(snd_soc_unregister_component); +EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot); -/* Retrieve a card's name from device tree */ -int snd_soc_of_parse_card_name(struct snd_soc_card *card, - const char *propname) +void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, + struct snd_soc_codec_conf *codec_conf, + struct device_node *of_node, + const char *propname) { struct device_node *np = card->dev->of_node; + const char *str; int ret; - ret = of_property_read_string_index(np, propname, 0, &card->name); - /* - * EINVAL means the property does not exist. This is fine providing - * card->name was previously set, which is checked later in - * snd_soc_register_card. - */ - if (ret < 0 && ret != -EINVAL) { - dev_err(card->dev, - "ASoC: Property '%s' could not be read: %d\n", - propname, ret); - return ret; + ret = of_property_read_string(np, propname, &str); + if (ret < 0) { + /* no prefix is not error */ + return; } - return 0; + codec_conf->of_node = of_node; + codec_conf->name_prefix = str; } -EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); +EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix); int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, const char *propname) @@ -4296,8 +3375,9 @@ num_routes = of_property_count_strings(np, propname); if (num_routes < 0 || num_routes & 1) { - dev_err(card->dev, "ASoC: Property '%s' does not exist or its" - " length is not even\n", propname); + dev_err(card->dev, + "ASoC: Property '%s' does not exist or its length is not even\n", + propname); return -EINVAL; } num_routes /= 2; @@ -4334,15 +3414,17 @@ } } - card->num_dapm_routes = num_routes; - card->dapm_routes = routes; + card->num_of_dapm_routes = num_routes; + card->of_dapm_routes = routes; return 0; } EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); unsigned int snd_soc_of_parse_daifmt(struct device_node *np, - const char *prefix) + const char *prefix, + struct device_node **bitclkmaster, + struct device_node **framemaster) { int ret, i; char prop[128]; @@ -4425,9 +3507,13 @@ */ snprintf(prop, sizeof(prop), "%sbitclock-master", prefix); bit = !!of_get_property(np, prop, NULL); + if (bit && bitclkmaster) + *bitclkmaster = of_parse_phandle(np, prop, 0); snprintf(prop, sizeof(prop), "%sframe-master", prefix); frame = !!of_get_property(np, prop, NULL); + if (frame && framemaster) + *framemaster = of_parse_phandle(np, prop, 0); switch ((bit << 4) + frame) { case 0x11: @@ -4448,28 +3534,152 @@ } EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); -static int __init snd_soc_init(void) +static int snd_soc_get_dai_name(struct of_phandle_args *args, + const char **dai_name) { -#ifdef CONFIG_DEBUG_FS - snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); - if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { - pr_warn("ASoC: Failed to create debugfs directory\n"); - snd_soc_debugfs_root = NULL; + struct snd_soc_component *pos; + struct device_node *component_of_node; + int ret = -EPROBE_DEFER; + + mutex_lock(&client_mutex); + list_for_each_entry(pos, &component_list, list) { + 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 != args->np) + continue; + + if (pos->driver->of_xlate_dai_name) { + ret = pos->driver->of_xlate_dai_name(pos, + args, + dai_name); + } else { + int id = -1; + + switch (args->args_count) { + case 0: + id = 0; /* same as dai_drv[0] */ + break; + case 1: + id = args->args[0]; + break; + default: + /* not supported */ + break; + } + + if (id < 0 || id >= pos->num_dai) { + ret = -EINVAL; + continue; + } + + ret = 0; + + *dai_name = pos->dai_drv[id].name; + if (!*dai_name) + *dai_name = pos->name; + } + + break; } + mutex_unlock(&client_mutex); + return ret; +} - if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, - &codec_list_fops)) - pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name) +{ + struct of_phandle_args args; + int ret; - 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"); + ret = of_parse_phandle_with_args(of_node, "sound-dai", + "#sound-dai-cells", 0, &args); + if (ret) + return ret; - if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, - &platform_list_fops)) - pr_warn("ASoC: Failed to create platform list debugfs file\n"); -#endif + ret = snd_soc_get_dai_name(&args, dai_name); + + of_node_put(args.np); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); + +/* + * snd_soc_of_get_dai_link_codecs - Parse a list of CODECs in the devicetree + * @dev: Card device + * @of_node: Device node + * @dai_link: DAI link + * + * Builds an array of CODEC DAI components from the DAI link property + * 'sound-dai'. + * The array is set in the DAI link and the number of DAIs is set accordingly. + * The device nodes in the array (of_node) must be dereferenced by the caller. + * + * Returns 0 for success + */ +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_kzalloc(dev, + sizeof *component * num_codecs, + GFP_KERNEL); + if (!component) + return -ENOMEM; + dai_link->codecs = component; + dai_link->num_codecs = num_codecs; + + /* Parse the list */ + for (index = 0, component = dai_link->codecs; + index < dai_link->num_codecs; + index++, component++) { + ret = of_parse_phandle_with_args(of_node, name, + "#sound-dai-cells", + index, &args); + 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: + for (index = 0, component = dai_link->codecs; + index < dai_link->num_codecs; + index++, component++) { + if (!component->of_node) + break; + of_node_put(component->of_node); + component->of_node = NULL; + } + dai_link->codecs = NULL; + dai_link->num_codecs = 0; + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_codecs); +static int __init snd_soc_init(void) +{ + snd_soc_debugfs_init(); snd_soc_util_init(); return platform_driver_register(&soc_driver); @@ -4479,9 +3689,9 @@ static void __exit snd_soc_exit(void) { snd_soc_util_exit(); + snd_soc_debugfs_exit(); #ifdef CONFIG_DEBUG_FS - debugfs_remove_recursive(snd_soc_debugfs_root); #endif platform_driver_unregister(&soc_driver); }