#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/of.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
-#include <sound/ac97_codec.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
module_param(pmdown_time, int, 0);
MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
-struct snd_ac97_reset_cfg {
- struct pinctrl *pctl;
- struct pinctrl_state *pstate_reset;
- struct pinctrl_state *pstate_warm_reset;
- struct pinctrl_state *pstate_run;
- int gpio_sdata;
- int gpio_sync;
- int gpio_reset;
-};
-
/* returns the minimum number of bytes needed to represent
* a particular given value */
static int min_bytes_needed(unsigned long val)
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)
{
struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
- debugfs_create_bool("cache_sync", 0444, codec->component.debugfs_root,
- &codec->cache_sync);
-
codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
codec->component.debugfs_root,
codec, &codec_reg_fops);
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->component.name);
}
}
+ mutex_unlock(&client_mutex);
+
if (ret >= 0)
ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
if (!buf)
return -ENOMEM;
+ 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",
}
}
+ mutex_unlock(&client_mutex);
+
ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
kfree(buf);
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->component.name);
}
}
+ mutex_unlock(&client_mutex);
+
ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
kfree(buf);
}
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)
-{
- 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->component.card->dev;
- codec->ac97->dev.release = soc_ac97_device_release;
-
- dev_set_name(&codec->ac97->dev, "%d-%d:%s",
- codec->component.card->snd_card->number, 0,
- codec->component.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;
-}
-#endif
-
static void codec2codec_close_delayed_work(struct work_struct *work)
{
/* Currently nothing to do for c2c links
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 */
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 */
if (codec->driver->suspend)
codec->driver->suspend(codec);
codec->suspended = 1;
- codec->cache_sync = 1;
if (codec->component.regmap)
regcache_mark_dirty(codec->component.regmap);
/* deactivate pins to sleep state */
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 */
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);
}
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)
/* 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);
+ /* Recheck all endpoints too, their state is affected by suspend */
+ dapm_mark_endpoints_dirty(card);
snd_soc_dapm_sync(&card->dapm);
}
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 card is not initialized yet there is nothing to do */
if (!card->instantiated)
}
}
- /* 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
+ /*
+ * 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");
{
struct snd_soc_component *component;
+ lockdep_assert_held(&client_mutex);
+
list_for_each_entry(component, &component_list, list) {
if (of_node) {
if (component->dev->of_node == of_node)
struct snd_soc_component *component;
struct snd_soc_dai *dai;
+ lockdep_assert_held(&client_mutex);
+
/* Find CPU DAI from registered DAIs*/
list_for_each_entry(component, &component_list, list) {
if (dlc->of_node && component->dev->of_node != dlc->of_node)
continue;
- if (dlc->name && strcmp(dev_name(component->dev), dlc->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))
/* 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;
}
device_initialize(rtd->dev);
rtd->dev->parent = rtd->card->dev;
rtd->dev->release = rtd_release;
+ rtd->dev->groups = soc_dev_attr_groups;
dev_set_name(rtd->dev, "%s", name);
dev_set_drvdata(rtd->dev, rtd);
mutex_init(&rtd->pcm_mutex);
return ret;
}
rtd->dev_registered = 1;
-
- if (rtd->codec) {
- /* add DAPM sysfs entries for this codec */
- ret = snd_soc_dapm_sys_add(rtd->dev);
- if (ret < 0)
- dev_err(rtd->dev,
- "ASoC: failed to add codec dapm sysfs entries: %d\n",
- ret);
-
- /* add codec sysfs entries */
- ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
- if (ret < 0)
- dev_err(rtd->dev,
- "ASoC: failed to add codec sysfs files: %d\n",
- ret);
- }
-
return 0;
}
return 0;
}
-static int soc_probe_codec_dai(struct snd_soc_card *card,
- struct snd_soc_dai *codec_dai,
- int order)
+static int soc_probe_dai(struct snd_soc_dai *dai, int order)
{
int ret;
- if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
- if (codec_dai->driver->probe) {
- ret = codec_dai->driver->probe(codec_dai);
+ if (!dai->probed && dai->driver->probe_order == order) {
+ if (dai->driver->probe) {
+ ret = dai->driver->probe(dai);
if (ret < 0) {
- dev_err(codec_dai->dev,
- "ASoC: failed to probe CODEC DAI %s: %d\n",
- codec_dai->name, ret);
+ dev_err(dai->dev,
+ "ASoC: failed to probe DAI %s: %d\n",
+ dai->name, ret);
return ret;
}
}
- /* mark codec_dai as probed and add to card dai list */
- codec_dai->probed = 1;
+ dai->probed = 1;
}
return 0;
{
struct snd_soc_dai_link *dai_link = &card->dai_link[num];
struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
- struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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;
- cpu_dai->card = card;
- for (i = 0; i < rtd->num_codecs; i++)
- rtd->codec_dais[i]->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->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);
- return ret;
- }
- }
- cpu_dai->probed = 1;
- }
+ ret = soc_probe_dai(cpu_dai, order);
+ if (ret)
+ return ret;
/* probe the CODEC DAI */
for (i = 0; i < rtd->num_codecs; i++) {
- ret = soc_probe_codec_dai(card, rtd->codec_dais[i], order);
+ ret = soc_probe_dai(rtd->codec_dais[i], order);
if (ret)
return ret;
}
}
#endif
- ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
- if (ret < 0)
- dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n",
- ret);
-
if (cpu_dai->driver->compress_dai) {
/*create compress_device"*/
ret = soc_new_compress(rtd, num);
}
}
- /* add platform data for AC97 devices */
- for (i = 0; i < rtd->num_codecs; i++) {
- if (rtd->codec_dais[i]->driver->ac97_control)
- snd_ac97_dev_add_pdata(rtd->codec_dais[i]->codec->ac97,
- rtd->cpu_dai->ac97_pdata);
- }
-
- return 0;
-}
-
-#ifdef CONFIG_SND_SOC_AC97_BUS
-static int soc_register_ac97_codec(struct snd_soc_codec *codec,
- struct snd_soc_dai *codec_dai)
-{
- int ret;
-
- /* Only instantiate AC97 if not already done by the adaptor
- * for the generic AC97 subsystem.
- */
- if (codec_dai->driver->ac97_control && !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 (!codec->ac97_created)
- return 0;
-
- ret = soc_ac97_dev_register(codec);
- if (ret < 0) {
- dev_err(codec->dev,
- "ASoC: AC97 device register failed: %d\n", ret);
- return ret;
- }
-
- codec->ac97_registered = 1;
- }
- return 0;
-}
-
-static void soc_unregister_ac97_codec(struct snd_soc_codec *codec)
-{
- if (codec->ac97_registered) {
- soc_ac97_dev_unregister(codec);
- codec->ac97_registered = 0;
- }
-}
-
-static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
-{
- int i, ret;
-
- for (i = 0; i < rtd->num_codecs; i++) {
- struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
-
- ret = soc_register_ac97_codec(codec_dai->codec, codec_dai);
- if (ret) {
- while (--i >= 0)
- soc_unregister_ac97_codec(codec_dai->codec);
- return ret;
- }
- }
-
return 0;
}
-static void soc_unregister_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
-{
- int i;
-
- for (i = 0; i < rtd->num_codecs; i++)
- soc_unregister_ac97_codec(rtd->codec_dais[i]->codec);
-}
-#endif
-
static int soc_bind_aux_dev(struct snd_soc_card *card, int num)
{
struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
return 0;
}
+/**
+ * snd_soc_runtime_set_dai_fmt() - Change DAI link format for a ASoC runtime
+ * @rtd: The runtime for which the DAI link format should be changed
+ * @dai_fmt: The new DAI link format
+ *
+ * This function updates the DAI link format for all DAIs connected to the DAI
+ * link for the specified runtime.
+ *
+ * Note: For setups with a static format set the dai_fmt field in the
+ * corresponding snd_dai_link struct instead of using this function.
+ *
+ * Returns 0 on success, otherwise a negative error code.
+ */
+int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
+ unsigned int dai_fmt)
+{
+ struct snd_soc_dai **codec_dais = rtd->codec_dais;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < rtd->num_codecs; i++) {
+ struct snd_soc_dai *codec_dai = codec_dais[i];
+
+ ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
+ if (ret != 0 && ret != -ENOTSUPP) {
+ dev_warn(codec_dai->dev,
+ "ASoC: Failed to set DAI format: %d\n", ret);
+ return ret;
+ }
+ }
+
+ /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */
+ if (cpu_dai->codec) {
+ unsigned int inv_dai_fmt;
+
+ inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK;
+ switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
+ break;
+ }
+
+ dai_fmt = inv_dai_fmt;
+ }
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt);
+ if (ret != 0 && ret != -ENOTSUPP) {
+ dev_warn(cpu_dai->dev,
+ "ASoC: Failed to set DAI format: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_runtime_set_dai_fmt);
+
static int snd_soc_instantiate_card(struct snd_soc_card *card)
{
struct snd_soc_codec *codec;
- struct snd_soc_dai_link *dai_link;
- int ret, i, order, dai_fmt;
+ int ret, i, order;
+ mutex_lock(&client_mutex);
mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
/* bind DAIs */
card->num_dapm_routes);
for (i = 0; i < card->num_links; i++) {
- struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
- dai_link = &card->dai_link[i];
- dai_fmt = dai_link->dai_fmt;
-
- if (dai_fmt) {
- struct snd_soc_dai **codec_dais = rtd->codec_dais;
- int j;
-
- for (j = 0; j < rtd->num_codecs; j++) {
- struct snd_soc_dai *codec_dai = codec_dais[j];
-
- ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
- if (ret != 0 && ret != -ENOTSUPP)
- dev_warn(codec_dai->dev,
- "ASoC: Failed to set DAI format: %d\n",
- ret);
- }
- }
-
- /* If this is a regular CPU link there will be a platform */
- if (dai_fmt &&
- (dai_link->platform_name || dai_link->platform_of_node)) {
- ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
- dai_fmt);
- if (ret != 0 && ret != -ENOTSUPP)
- dev_warn(card->rtd[i].cpu_dai->dev,
- "ASoC: Failed to set DAI format: %d\n",
- ret);
- } else if (dai_fmt) {
- /* Flip the polarity for the "CPU" end */
- dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
- switch (dai_link->dai_fmt &
- SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
- break;
- case SND_SOC_DAIFMT_CBM_CFS:
- dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
- break;
- case SND_SOC_DAIFMT_CBS_CFM:
- dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
- break;
- }
-
- ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
- dai_fmt);
- if (ret != 0 && ret != -ENOTSUPP)
- dev_warn(card->rtd[i].cpu_dai->dev,
- "ASoC: Failed to set DAI format: %d\n",
- ret);
- }
+ if (card->dai_link[i].dai_fmt)
+ snd_soc_runtime_set_dai_fmt(&card->rtd[i],
+ card->dai_link[i].dai_fmt);
}
snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
}
}
- if (card->fully_routed)
- snd_soc_dapm_auto_nc_pins(card);
-
snd_soc_dapm_new_widgets(card);
ret = snd_card_register(card->snd_card);
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]);
- 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;
base_error:
mutex_unlock(&card->mutex);
+ mutex_unlock(&client_mutex);
return ret;
}
static struct platform_driver soc_driver = {
.driver = {
.name = "soc-audio",
- .owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = soc_probe,
};
/**
- * snd_soc_new_ac97_codec - initailise AC97 device
- * @codec: audio codec
- * @ops: AC97 bus operations
- * @num: AC97 codec number
+ * snd_soc_cnew - create new control
+ * @_template: control template
+ * @data: control private data
+ * @long_name: control long name
+ * @prefix: control name prefix
+ *
+ * Create a new mixer control from a template control.
*
- * Initialises AC97 codec resources for use by ad-hoc devices only.
+ * Returns 0 for success, else error.
*/
-int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
- struct snd_ac97_bus_ops *ops, int num)
+struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
+ void *data, const char *long_name,
+ const char *prefix)
{
- codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
- if (codec->ac97 == NULL)
- return -ENOMEM;
-
- codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
- if (codec->ac97->bus == NULL) {
- kfree(codec->ac97);
- codec->ac97 = NULL;
- 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;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
+ struct snd_kcontrol_new template;
+ struct snd_kcontrol *kcontrol;
+ char *name = NULL;
-static struct snd_ac97_reset_cfg snd_ac97_rst_cfg;
+ memcpy(&template, _template, sizeof(template));
+ template.index = 0;
-static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)
-{
- struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
+ if (!long_name)
+ long_name = template.name;
- pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_warm_reset);
+ if (prefix) {
+ name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
+ if (!name)
+ return NULL;
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 1);
+ template.name = name;
+ } else {
+ template.name = long_name;
+ }
- udelay(10);
+ kcontrol = snd_ctl_new1(&template, data);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
+ kfree(name);
- pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
- msleep(2);
+ return kcontrol;
}
+EXPORT_SYMBOL_GPL(snd_soc_cnew);
-static void snd_soc_ac97_reset(struct snd_ac97 *ac97)
+static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
+ const struct snd_kcontrol_new *controls, int num_controls,
+ const char *prefix, void *data)
{
- struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
+ int err, i;
- pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_reset);
+ for (i = 0; i < num_controls; i++) {
+ const struct snd_kcontrol_new *control = &controls[i];
+ err = snd_ctl_add(card, snd_soc_cnew(control, data,
+ control->name, prefix));
+ if (err < 0) {
+ dev_err(dev, "ASoC: Failed to add %s: %d\n",
+ control->name, err);
+ return err;
+ }
+ }
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sdata, 0);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 0);
+ return 0;
+}
- udelay(10);
+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;
- gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 1);
+ if (unlikely(!name))
+ return NULL;
- pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
- msleep(2);
+ 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);
-static int snd_soc_ac97_parse_pinctl(struct device *dev,
- struct snd_ac97_reset_cfg *cfg)
+/**
+ * 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 pinctrl *p;
- struct pinctrl_state *state;
- int gpio;
- int ret;
+ struct snd_card *card = component->card->snd_card;
- p = devm_pinctrl_get(dev);
- if (IS_ERR(p)) {
- dev_err(dev, "Failed to get pinctrl\n");
- return PTR_ERR(p);
- }
- cfg->pctl = p;
-
- state = pinctrl_lookup_state(p, "ac97-reset");
- if (IS_ERR(state)) {
- dev_err(dev, "Can't find pinctrl state ac97-reset\n");
- return PTR_ERR(state);
- }
- cfg->pstate_reset = state;
-
- state = pinctrl_lookup_state(p, "ac97-warm-reset");
- if (IS_ERR(state)) {
- dev_err(dev, "Can't find pinctrl state ac97-warm-reset\n");
- return PTR_ERR(state);
- }
- cfg->pstate_warm_reset = state;
-
- state = pinctrl_lookup_state(p, "ac97-running");
- if (IS_ERR(state)) {
- dev_err(dev, "Can't find pinctrl state ac97-running\n");
- return PTR_ERR(state);
- }
- cfg->pstate_run = state;
-
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 0);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-sync gpio\n");
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link sync");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-sync gpio\n");
- return ret;
- }
- cfg->gpio_sync = gpio;
-
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 1);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-sdata gpio %d\n", gpio);
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link sdata");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-sdata gpio\n");
- return ret;
- }
- cfg->gpio_sdata = gpio;
-
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-reset gpio\n");
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link reset");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-reset gpio\n");
- return ret;
- }
- cfg->gpio_reset = gpio;
-
- return 0;
-}
-
-struct snd_ac97_bus_ops *soc_ac97_ops;
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
-
-int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
-{
- if (ops == soc_ac97_ops)
- return 0;
-
- if (soc_ac97_ops && ops)
- return -EBUSY;
-
- soc_ac97_ops = ops;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
-
-/**
- * snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions
- *
- * This function sets the reset and warm_reset properties of ops and parses
- * the device node of pdev to get pinctrl states and gpio numbers to use.
- */
-int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
- struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct snd_ac97_reset_cfg cfg;
- int ret;
-
- ret = snd_soc_ac97_parse_pinctl(dev, &cfg);
- if (ret)
- return ret;
-
- ret = snd_soc_set_ac97_ops(ops);
- if (ret)
- return ret;
-
- ops->warm_reset = snd_soc_ac97_warm_reset;
- ops->reset = snd_soc_ac97_reset;
-
- snd_ac97_rst_cfg = cfg;
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops_of_reset);
-
-/**
- * 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)
-{
-#ifdef CONFIG_SND_SOC_AC97_BUS
- soc_unregister_ac97_codec(codec);
-#endif
- kfree(codec->ac97->bus);
- kfree(codec->ac97);
- codec->ac97 = NULL;
- codec->ac97_created = 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
-
-/**
- * snd_soc_cnew - create new control
- * @_template: control template
- * @data: control private data
- * @long_name: control long name
- * @prefix: control name prefix
- *
- * Create a new mixer control from a template control.
- *
- * Returns 0 for success, else error.
- */
-struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
- void *data, const char *long_name,
- const char *prefix)
-{
- struct snd_kcontrol_new template;
- struct snd_kcontrol *kcontrol;
- char *name = NULL;
-
- memcpy(&template, _template, sizeof(template));
- template.index = 0;
-
- if (!long_name)
- long_name = template.name;
-
- if (prefix) {
- name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
- if (!name)
- return NULL;
-
- template.name = name;
- } else {
- template.name = long_name;
- }
-
- kcontrol = snd_ctl_new1(&template, data);
-
- kfree(name);
-
- return kcontrol;
-}
-EXPORT_SYMBOL_GPL(snd_soc_cnew);
-
-static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
- const struct snd_kcontrol_new *controls, int num_controls,
- const char *prefix, void *data)
-{
- int err, i;
-
- for (i = 0; i < num_controls; i++) {
- const struct snd_kcontrol_new *control = &controls[i];
- err = snd_ctl_add(card, snd_soc_cnew(control, data,
- control->name, prefix));
- if (err < 0) {
- dev_err(dev, "ASoC: Failed to add %s: %d\n",
- control->name, err);
- return err;
- }
- }
-
- 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
- * duplicating this code.
- *
- * @codec: codec 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_codec_controls(struct snd_soc_codec *codec,
- const struct snd_kcontrol_new *controls, unsigned int num_controls)
-{
- return snd_soc_add_component_controls(&codec->component, controls,
- num_controls);
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
-
-/**
- * snd_soc_add_platform_controls - add an array of controls to a platform.
- * Convenience function to add a list of controls.
- *
- * @platform: platform 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_platform_controls(struct snd_soc_platform *platform,
- const struct snd_kcontrol_new *controls, unsigned int num_controls)
-{
- return snd_soc_add_component_controls(&platform->component, controls,
- num_controls);
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
-
-/**
- * snd_soc_add_card_controls - add an array of controls to a SoC card.
- * Convenience function to add a list of controls.
- *
- * @soc_card: SoC card 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_card_controls(struct snd_soc_card *soc_card,
- const struct snd_kcontrol_new *controls, int num_controls)
-{
- struct snd_card *card = soc_card->snd_card;
-
- return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
- NULL, soc_card);
-}
-EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
-
-/**
- * snd_soc_add_dai_controls - add an array of controls to a DAI.
- * Convienience function to add a list of controls.
- *
- * @dai: DAI 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_dai_controls(struct snd_soc_dai *dai,
- const struct snd_kcontrol_new *controls, int num_controls)
-{
- struct snd_card *card = dai->card->snd_card;
-
- return snd_soc_add_controls(card, dai->dev, controls, num_controls,
- NULL, dai);
-}
-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->items;
-
- if (uinfo->value.enumerated.item >= e->items)
- uinfo->value.enumerated.item = e->items - 1;
- strlcpy(uinfo->value.enumerated.name,
- e->texts[uinfo->value.enumerated.item],
- sizeof(uinfo->value.enumerated.name));
- 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_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- unsigned int val, item;
- unsigned int reg_val;
- int ret;
-
- ret = snd_soc_component_read(component, e->reg, ®_val);
- if (ret)
- return ret;
- val = (reg_val >> e->shift_l) & e->mask;
- item = snd_soc_enum_val_to_item(e, val);
- ucontrol->value.enumerated.item[0] = item;
- if (e->shift_l != e->shift_r) {
- val = (reg_val >> e->shift_l) & e->mask;
- item = snd_soc_enum_val_to_item(e, val);
- ucontrol->value.enumerated.item[1] = item;
- }
-
- 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_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- unsigned int *item = ucontrol->value.enumerated.item;
- unsigned int val;
- unsigned int mask;
-
- if (item[0] >= e->items)
- return -EINVAL;
- val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
- mask = e->mask << e->shift_l;
- if (e->shift_l != e->shift_r) {
- if (item[1] >= e->items)
- return -EINVAL;
- val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
- mask |= e->mask << e->shift_r;
- }
-
- return snd_soc_component_update_bits(component, e->reg, mask, val);
-}
-EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
-
-/**
- * snd_soc_read_signed - Read a codec register and interprete as signed value
- * @component: component
- * @reg: Register to read
- * @mask: Mask to use after shifting the register value
- * @shift: Right shift of register value
- * @sign_bit: Bit that describes if a number is negative or not.
- * @signed_val: Pointer to where the read value should be stored
- *
- * This functions reads a codec register. The register value is shifted right
- * by 'shift' bits and masked with the given 'mask'. Afterwards it translates
- * the given registervalue into a signed integer if sign_bit is non-zero.
- *
- * Returns 0 on sucess, otherwise an error value
- */
-static int snd_soc_read_signed(struct snd_soc_component *component,
- unsigned int reg, unsigned int mask, unsigned int shift,
- unsigned int sign_bit, int *signed_val)
-{
- int ret;
- unsigned int val;
-
- ret = snd_soc_component_read(component, reg, &val);
- if (ret < 0)
- return ret;
-
- val = (val >> shift) & mask;
-
- if (!sign_bit) {
- *signed_val = val;
- return 0;
- }
-
- /* non-negative number */
- if (!(val & BIT(sign_bit))) {
- *signed_val = val;
- return 0;
- }
-
- ret = val;
-
- /*
- * The register most probably does not contain a full-sized int.
- * Instead we have an arbitrary number of bits in a signed
- * representation which has to be translated into a full-sized int.
- * This is done by filling up all bits above the sign-bit.
- */
- ret |= ~((int)(BIT(sign_bit) - 1));
-
- *signed_val = ret;
-
- return 0;
-}
-
-/**
- * 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 - mc->min;
- 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 snd_soc_component *component = 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 sign_bit = mc->sign_bit;
- unsigned int mask = (1 << fls(max)) - 1;
- unsigned int invert = mc->invert;
- int val;
- int ret;
-
- if (sign_bit)
- mask = BIT(sign_bit + 1) - 1;
-
- ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
- if (ret)
- return ret;
-
- ucontrol->value.integer.value[0] = val - min;
- if (invert)
- ucontrol->value.integer.value[0] =
- max - ucontrol->value.integer.value[0];
-
- if (snd_soc_volsw_is_stereo(mc)) {
- if (reg == reg2)
- ret = snd_soc_read_signed(component, reg, mask, rshift,
- sign_bit, &val);
- else
- ret = snd_soc_read_signed(component, reg2, mask, shift,
- sign_bit, &val);
- if (ret)
- return ret;
-
- ucontrol->value.integer.value[1] = val - min;
- 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 snd_soc_component *component = 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;
- unsigned int sign_bit = mc->sign_bit;
- unsigned int mask = (1 << fls(max)) - 1;
- unsigned int invert = mc->invert;
- int err;
- bool type_2r = false;
- unsigned int val2 = 0;
- unsigned int val, val_mask;
-
- if (sign_bit)
- mask = BIT(sign_bit + 1) - 1;
-
- val = ((ucontrol->value.integer.value[0] + min) & 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] + min) & mask);
- if (invert)
- val2 = max - val2;
- if (reg == reg2) {
- val_mask |= mask << rshift;
- val |= val2 << rshift;
- } else {
- val2 = val2 << shift;
- type_2r = true;
- }
- }
- err = snd_soc_component_update_bits(component, reg, val_mask, val);
- if (err < 0)
- return err;
-
- if (type_2r)
- err = snd_soc_component_update_bits(component, 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_component *component = 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;
- unsigned int val;
- int ret;
-
- ret = snd_soc_component_read(component, reg, &val);
- if (ret < 0)
- return ret;
-
- ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
-
- if (snd_soc_volsw_is_stereo(mc)) {
- ret = snd_soc_component_read(component, reg2, &val);
- if (ret < 0)
- return ret;
-
- val = ((val >> rshift) - min) & mask;
- ucontrol->value.integer.value[1] = val;
- }
-
- 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_component *component = 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 int val, val_mask, val2 = 0;
-
- val_mask = mask << shift;
- val = (ucontrol->value.integer.value[0] + min) & mask;
- val = val << shift;
-
- err = snd_soc_component_update_bits(component, 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;
-
- err = snd_soc_component_update_bits(component, reg2, val_mask,
- val2);
- }
- return err;
-}
-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_component *component = snd_kcontrol_chip(kcontrol);
- unsigned int reg = mc->reg;
- unsigned int val;
- int min = mc->min;
- int ret;
-
- ret = snd_soc_component_read(component, reg, &val);
- if (ret)
- return ret;
-
- 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_component *component = 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_component_update_bits(component, 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_component *component = 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;
-
- if (invert)
- val = (max - ucontrol->value.integer.value[0]) & mask;
- else
- val = ((ucontrol->value.integer.value[0] + min) & mask);
- val_mask = mask << shift;
- val = val << shift;
-
- ret = snd_soc_component_update_bits(component, reg, val_mask, val);
- if (ret < 0)
- return ret;
-
- if (snd_soc_volsw_is_stereo(mc)) {
- if (invert)
- val = (max - ucontrol->value.integer.value[1]) & mask;
- else
- val = ((ucontrol->value.integer.value[1] + min) & mask);
- val_mask = mask << shift;
- val = val << shift;
-
- ret = snd_soc_component_update_bits(component, 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 snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- 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;
- int ret;
-
- ret = snd_soc_component_read(component, reg, &val);
- if (ret)
- return ret;
-
- ucontrol->value.integer.value[0] = (val >> shift) & mask;
- if (invert)
- ucontrol->value.integer.value[0] =
- max - ucontrol->value.integer.value[0];
- else
- ucontrol->value.integer.value[0] =
- ucontrol->value.integer.value[0] - min;
-
- if (snd_soc_volsw_is_stereo(mc)) {
- ret = snd_soc_component_read(component, rreg, &val);
- if (ret)
- return ret;
-
- ucontrol->value.integer.value[1] = (val >> shift) & mask;
- if (invert)
- ucontrol->value.integer.value[1] =
- max - ucontrol->value.integer.value[1];
- else
- ucontrol->value.integer.value[1] =
- ucontrol->value.integer.value[1] - min;
- }
-
- return 0;
+ return snd_soc_add_controls(card, component->dev, controls,
+ num_controls, component->name_prefix, component);
}
-EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
+EXPORT_SYMBOL_GPL(snd_soc_add_component_controls);
/**
- * snd_soc_limit_volume - Set new limit to an existing volume control.
+ * snd_soc_add_codec_controls - add an array of controls to a codec.
+ * Convenience function to add a list of controls. Many codecs were
+ * duplicating this code.
*
- * @codec: where to look for the control
- * @name: Name of the control
- * @max: new maximum limit
+ * @codec: codec 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_limit_volume(struct snd_soc_codec *codec,
- const char *name, int max)
-{
- struct snd_card *card = codec->component.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_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_bytes *params = (void *)kcontrol->private_value;
-
- uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
- uinfo->count = params->num_regs * component->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 snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_bytes *params = (void *)kcontrol->private_value;
- int ret;
-
- if (component->regmap)
- ret = regmap_raw_read(component->regmap, params->base,
- ucontrol->value.bytes.data,
- params->num_regs * component->val_bytes);
- else
- ret = -EINVAL;
-
- /* Hide any masked bytes to ensure consistent data reporting */
- if (ret == 0 && params->mask) {
- switch (component->val_bytes) {
- case 1:
- ucontrol->value.bytes.data[0] &= ~params->mask;
- break;
- case 2:
- ((u16 *)(&ucontrol->value.bytes.data))[0]
- &= cpu_to_be16(~params->mask);
- break;
- case 4:
- ((u32 *)(&ucontrol->value.bytes.data))[0]
- &= cpu_to_be32(~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 snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_bytes *params = (void *)kcontrol->private_value;
- int ret, len;
- unsigned int val, mask;
- void *data;
-
- if (!component->regmap || !params->num_regs)
- return -EINVAL;
-
- len = params->num_regs * component->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(component->regmap, params->base, &val);
- if (ret != 0)
- goto out;
-
- val &= params->mask;
-
- switch (component->val_bytes) {
- case 1:
- ((u8 *)data)[0] &= ~params->mask;
- ((u8 *)data)[0] |= val;
- break;
- case 2:
- mask = ~params->mask;
- ret = regmap_parse_val(component->regmap,
- &mask, &mask);
- if (ret != 0)
- goto out;
-
- ((u16 *)data)[0] &= mask;
-
- ret = regmap_parse_val(component->regmap,
- &val, &val);
- if (ret != 0)
- goto out;
-
- ((u16 *)data)[0] |= val;
- break;
- case 4:
- mask = ~params->mask;
- ret = regmap_parse_val(component->regmap,
- &mask, &mask);
- if (ret != 0)
- goto out;
-
- ((u32 *)data)[0] &= mask;
-
- ret = regmap_parse_val(component->regmap,
- &val, &val);
- if (ret != 0)
- goto out;
-
- ((u32 *)data)[0] |= val;
- break;
- default:
- ret = -EINVAL;
- goto out;
- }
- }
-
- ret = regmap_raw_write(component->regmap, params->base,
- data, len);
-
-out:
- kfree(data);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
-
-int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_info *ucontrol)
-{
- struct soc_bytes_ext *params = (void *)kcontrol->private_value;
-
- ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES;
- ucontrol->count = params->max;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
-
-int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
- unsigned int size, unsigned int __user *tlv)
-{
- struct soc_bytes_ext *params = (void *)kcontrol->private_value;
- unsigned int count = size < params->max ? size : params->max;
- int ret = -ENXIO;
-
- switch (op_flag) {
- case SNDRV_CTL_TLV_OP_READ:
- if (params->get)
- ret = params->get(tlv, count);
- break;
- case SNDRV_CTL_TLV_OP_WRITE:
- if (params->put)
- ret = params->put(tlv, count);
- break;
- }
- return ret;
-}
-EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback);
-
-/**
- * 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)
+int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
+ const struct snd_kcontrol_new *controls, unsigned int num_controls)
{
- struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_mreg_control *mc =
- (struct soc_mreg_control *)kcontrol->private_value;
- unsigned int regbase = mc->regbase;
- unsigned int regcount = mc->regcount;
- unsigned int regwshift = component->val_bytes * 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 int regval;
- unsigned int i;
- int ret;
-
- for (i = 0; i < regcount; i++) {
- ret = snd_soc_component_read(component, regbase+i, ®val);
- if (ret)
- return ret;
- val |= (regval & regwmask) << (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;
+ return snd_soc_add_component_controls(&codec->component, controls,
+ num_controls);
}
-EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
+EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
/**
- * snd_soc_put_xr_sx - signed multi register get callback
- * @kcontrol: mreg control
- * @ucontrol: control element information
+ * snd_soc_add_platform_controls - add an array of controls to a platform.
+ * Convenience function to add a list of controls.
*
- * 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.
+ * @platform: platform to add controls to
+ * @controls: array of controls to add
+ * @num_controls: number of elements in the array
*
- * Returns 0 for success.
+ * Return 0 for success, else error.
*/
-int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
+ const struct snd_kcontrol_new *controls, unsigned int num_controls)
{
- struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_mreg_control *mc =
- (struct soc_mreg_control *)kcontrol->private_value;
- unsigned int regbase = mc->regbase;
- unsigned int regcount = mc->regcount;
- unsigned int regwshift = component->val_bytes * 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_component_update_bits(component, regbase+i,
- regmask, regval);
- if (err < 0)
- return err;
- }
-
- return 0;
+ return snd_soc_add_component_controls(&platform->component, controls,
+ num_controls);
}
-EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
+EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
/**
- * snd_soc_get_strobe - strobe get callback
- * @kcontrol: mixer control
- * @ucontrol: control element information
+ * snd_soc_add_card_controls - add an array of controls to a SoC card.
+ * Convenience function to add a list of controls.
*
- * Callback get the value of a strobe mixer control.
+ * @soc_card: SoC card to add controls to
+ * @controls: array of controls to add
+ * @num_controls: number of elements in the array
*
- * Returns 0 for success.
+ * Return 0 for success, else error.
*/
-int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
+ const struct snd_kcontrol_new *controls, int num_controls)
{
- struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- unsigned int reg = mc->reg;
- unsigned int shift = mc->shift;
- unsigned int mask = 1 << shift;
- unsigned int invert = mc->invert != 0;
- unsigned int val;
- int ret;
-
- ret = snd_soc_component_read(component, reg, &val);
- if (ret)
- return ret;
-
- val &= mask;
-
- if (shift != 0 && val != 0)
- val = val >> shift;
- ucontrol->value.enumerated.item[0] = val ^ invert;
+ struct snd_card *card = soc_card->snd_card;
- return 0;
+ return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
+ NULL, soc_card);
}
-EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
+EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
/**
- * snd_soc_put_strobe - strobe put callback
- * @kcontrol: mixer control
- * @ucontrol: control element information
+ * snd_soc_add_dai_controls - add an array of controls to a DAI.
+ * Convienience function to add a list of controls.
*
- * Callback strobe a register bit to high then low (or the inverse)
- * in one pass of a single mixer enum control.
+ * @dai: DAI to add controls to
+ * @controls: array of controls to add
+ * @num_controls: number of elements in the array
*
- * Returns 1 for success.
+ * Return 0 for success, else error.
*/
-int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
+ const struct snd_kcontrol_new *controls, int num_controls)
{
- struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- 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_component_update_bits(component, reg, mask, val1);
- if (err < 0)
- return err;
+ struct snd_card *card = dai->component->card->snd_card;
- return snd_soc_component_update_bits(component, reg, mask, val2);
+ return snd_soc_add_controls(card, dai->dev, controls, num_controls,
+ NULL, dai);
}
-EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
+EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
/**
* snd_soc_dai_set_sysclk - configure DAI system or master clock.
}
/**
- * snd_soc_dai_set_tdm_slot - configure DAI TDM.
- * @dai: DAI
+ * 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)
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;
}
return 0;
}
-static void snd_soc_component_init_regmap(struct snd_soc_component *component)
+static void snd_soc_component_setup_regmap(struct snd_soc_component *component)
{
- if (!component->regmap)
- component->regmap = dev_get_regmap(component->dev, NULL);
- if (component->regmap) {
- 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;
- }
+ 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)
- snd_soc_component_init_regmap(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);
}
list_del(&component->list);
}
-static void snd_soc_component_del(struct snd_soc_component *component)
-{
- mutex_lock(&client_mutex);
- snd_soc_component_del_unlocked(component);
- mutex_unlock(&client_mutex);
-}
-
int snd_soc_register_component(struct device *dev,
const struct snd_soc_component_driver *cmpnt_drv,
struct snd_soc_dai_driver *dai_drv,
{
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_component_del(cmpnt);
+ snd_soc_component_del_unlocked(cmpnt);
+ mutex_unlock(&client_mutex);
snd_soc_component_cleanup(cmpnt);
kfree(cmpnt);
}
{
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;
}
codec->dev = dev;
codec->driver = codec_drv;
codec->component.val_bytes = codec_drv->reg_word_size;
- mutex_init(&codec->mutex);
#ifdef CONFIG_DEBUG_FS
codec->component.init_debugfs = soc_init_codec_debugfs;
{
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:
-
- mutex_lock(&client_mutex);
list_del(&codec->list);
snd_soc_component_del_unlocked(&codec->component);
mutex_unlock(&client_mutex);
}
EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
-int snd_soc_of_get_dai_name(struct device_node *of_node,
- const char **dai_name)
+static int snd_soc_get_dai_name(struct of_phandle_args *args,
+ const char **dai_name)
{
struct snd_soc_component *pos;
- struct of_phandle_args args;
- int ret;
-
- ret = of_parse_phandle_with_args(of_node, "sound-dai",
- "#sound-dai-cells", 0, &args);
- if (ret)
- return ret;
-
- ret = -EPROBE_DEFER;
+ int ret = -EPROBE_DEFER;
mutex_lock(&client_mutex);
list_for_each_entry(pos, &component_list, list) {
- if (pos->dev->of_node != args.np)
+ if (pos->dev->of_node != args->np)
continue;
if (pos->driver->of_xlate_dai_name) {
- ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
+ ret = pos->driver->of_xlate_dai_name(pos,
+ args,
+ dai_name);
} else {
int id = -1;
- switch (args.args_count) {
+ switch (args->args_count) {
case 0:
id = 0; /* same as dai_drv[0] */
break;
case 1:
- id = args.args[0];
+ id = args->args[0];
break;
default:
/* not supported */
break;
}
mutex_unlock(&client_mutex);
+ return ret;
+}
+
+int snd_soc_of_get_dai_name(struct device_node *of_node,
+ const char **dai_name)
+{
+ struct of_phandle_args args;
+ int ret;
+
+ ret = of_parse_phandle_with_args(of_node, "sound-dai",
+ "#sound-dai-cells", 0, &args);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_get_dai_name(&args, dai_name);
of_node_put(args.np);
}
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)
{
#ifdef CONFIG_DEBUG_FS
projects / cascardo / linux.git / blobdiff