#include <linux/slab.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-dapm.h>
#include <sound/initval.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/asoc.h>
+
#define NAME_SIZE 32
static DEFINE_MUTEX(pcm_mutex);
static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
#ifdef CONFIG_DEBUG_FS
-static struct dentry *debugfs_root;
+struct dentry *snd_soc_debugfs_root;
+EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
#endif
static DEFINE_MUTEX(client_mutex);
static LIST_HEAD(platform_list);
static LIST_HEAD(codec_list);
-static int snd_soc_register_card(struct snd_soc_card *card);
-static int snd_soc_unregister_card(struct snd_soc_card *card);
static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
/*
module_param(pmdown_time, int, 0);
MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
-/*
- * This function forces any delayed work to be queued and run.
- */
-static int run_delayed_work(struct delayed_work *dwork)
-{
- int ret;
-
- /* cancel any work waiting to be queued. */
- ret = cancel_delayed_work(dwork);
-
- /* if there was any work waiting then we run it now and
- * wait for it's completion */
- if (ret) {
- schedule_delayed_work(dwork, 0);
- flush_scheduled_work();
- }
- return ret;
-}
-
/* codec register dump */
static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
{
count += sprintf(buf, "%s registers\n", codec->name);
for (i = 0; i < codec->driver->reg_cache_size; i += step) {
- if (codec->driver->readable_register && !codec->driver->readable_register(i))
+ if (codec->readable_register && !codec->readable_register(codec, i))
continue;
count += sprintf(buf + count, "%2x: ", i);
* the register being volatile and the device being
* powered off.
*/
- ret = codec->driver->read(codec, i);
+ ret = snd_soc_read(codec, i);
if (ret >= 0)
count += snprintf(buf + count,
PAGE_SIZE - count,
start++;
if (strict_strtoul(start, 16, &value))
return -EINVAL;
- codec->driver->write(codec, reg, value);
+
+ /* Userspace has been fiddling around behind the kernel's back */
+ add_taint(TAINT_USER);
+
+ snd_soc_write(codec, reg, value);
return buf_size;
}
static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
{
- codec->debugfs_codec_root = debugfs_create_dir(codec->name ,
- debugfs_root);
+ 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) {
printk(KERN_WARNING
"ASoC: Failed to create codec debugfs directory\n");
return;
}
+ 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);
+
codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
codec->debugfs_codec_root,
codec, &codec_reg_fops);
printk(KERN_WARNING
"ASoC: Failed to create codec register debugfs file\n");
- codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
- codec->debugfs_codec_root,
- &codec->pop_time);
- if (!codec->debugfs_pop_time)
- printk(KERN_WARNING
- "Failed to create pop time debugfs file\n");
-
- codec->debugfs_dapm = debugfs_create_dir("dapm",
+ codec->dapm.debugfs_dapm = debugfs_create_dir("dapm",
codec->debugfs_codec_root);
- if (!codec->debugfs_dapm)
+ if (!codec->dapm.debugfs_dapm)
printk(KERN_WARNING
"Failed to create DAPM debugfs directory\n");
- snd_soc_dapm_debugfs_init(codec);
+ snd_soc_dapm_debugfs_init(&codec->dapm);
}
static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
.llseek = default_llseek,/* read accesses f_pos */
};
+static void soc_init_card_debugfs(struct snd_soc_card *card)
+{
+ card->debugfs_card_root = debugfs_create_dir(card->name,
+ snd_soc_debugfs_root);
+ if (!card->debugfs_card_root) {
+ dev_warn(card->dev,
+ "ASoC: Failed to create codec debugfs directory\n");
+ return;
+ }
+
+ card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
+ card->debugfs_card_root,
+ &card->pop_time);
+ if (!card->debugfs_pop_time)
+ dev_warn(card->dev,
+ "Failed to create pop time debugfs file\n");
+}
+
+static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
+{
+ debugfs_remove_recursive(card->debugfs_card_root);
+}
+
#else
static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
{
}
+
+static inline void soc_init_card_debugfs(struct snd_soc_card *card)
+{
+}
+
+static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
+{
+}
#endif
#ifdef CONFIG_SND_SOC_AC97_BUS
}
}
- /* Check that the codec and cpu DAI's are compatible */
+ /* Check that the codec and cpu DAIs are compatible */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
runtime->hw.rate_min =
max(codec_dai_drv->playback.rate_min,
}
/*
- * Free's resources allocated by hw_params, can be called multiple times
+ * Frees resources allocated by hw_params, can be called multiple times
*/
static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
{
if (platform->driver->ops->hw_free)
platform->driver->ops->hw_free(substream);
- /* now free hw params for the DAI's */
+ /* now free hw params for the DAIs */
if (codec_dai->driver->ops->hw_free)
codec_dai->driver->ops->hw_free(substream, codec_dai);
.pointer = soc_pcm_pointer,
};
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
/* powers down audio subsystem for suspend */
-static int soc_suspend(struct device *dev)
+int snd_soc_suspend(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = dev_get_drvdata(dev);
+ struct snd_soc_codec *codec;
int i;
/* If the initialization of this soc device failed, there is no codec
/* we're going to block userspace touching us until resume completes */
snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
- /* mute any active DAC's */
+ /* 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->suspend_pre)
- card->suspend_pre(pdev, PMSG_SUSPEND);
+ card->suspend_pre(card);
for (i = 0; i < card->num_rtd; i++) {
struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
/* close any waiting streams and save state */
for (i = 0; i < card->num_rtd; i++) {
- run_delayed_work(&card->rtd[i].delayed_work);
- card->rtd[i].codec->suspend_bias_level = card->rtd[i].codec->bias_level;
+ flush_delayed_work_sync(&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++) {
}
/* suspend all CODECs */
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_codec *codec = card->rtd[i].codec;
+ list_for_each_entry(codec, &card->codec_dev_list, card_list) {
/* 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->bias_level) {
+ switch (codec->dapm.bias_level) {
case SND_SOC_BIAS_STANDBY:
case SND_SOC_BIAS_OFF:
codec->driver->suspend(codec, PMSG_SUSPEND);
}
if (card->suspend_post)
- card->suspend_post(pdev, PMSG_SUSPEND);
+ card->suspend_post(card);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_suspend);
/* deferred resume work, so resume can complete before we finished
* setting our codec back up, which can be very slow on I2C
{
struct snd_soc_card *card =
container_of(work, struct snd_soc_card, deferred_resume_work);
- struct platform_device *pdev = to_platform_device(card->dev);
+ struct snd_soc_codec *codec;
int i;
/* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
if (card->resume_pre)
- card->resume_pre(pdev);
+ card->resume_pre(card);
/* resume AC97 DAIs */
for (i = 0; i < card->num_rtd; i++) {
cpu_dai->driver->resume(cpu_dai);
}
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_codec *codec = card->rtd[i].codec;
+ 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->bias_level) {
+ switch (codec->dapm.bias_level) {
case SND_SOC_BIAS_STANDBY:
case SND_SOC_BIAS_OFF:
codec->driver->resume(codec);
}
if (card->resume_post)
- card->resume_post(pdev);
+ card->resume_post(card);
dev_dbg(card->dev, "resume work completed\n");
}
/* powers up audio subsystem after a suspend */
-static int soc_resume(struct device *dev)
+int snd_soc_resume(struct device *dev)
{
- struct platform_device *pdev = to_platform_device(dev);
- struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = dev_get_drvdata(dev);
int i;
/* AC97 devices might have other drivers hanging off them so
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_resume);
#else
-#define soc_suspend NULL
-#define soc_resume NULL
+#define snd_soc_suspend NULL
+#define snd_soc_resume NULL
#endif
static struct snd_soc_dai_ops null_dai_ops = {
if (!strcmp(codec->name, dai_link->codec_name)) {
rtd->codec = codec;
- if (!try_module_get(codec->dev->driver->owner))
- return -ENODEV;
-
/* 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 &&
/* no, then find CPU DAI from registered DAIs*/
list_for_each_entry(platform, &platform_list, list) {
if (!strcmp(platform->name, dai_link->platform_name)) {
-
- if (!try_module_get(platform->dev->driver->owner))
- return -ENODEV;
-
rtd->platform = platform;
goto out;
}
return 1;
}
+static void soc_remove_codec(struct snd_soc_codec *codec)
+{
+ int err;
+
+ if (codec->driver->remove) {
+ err = codec->driver->remove(codec);
+ if (err < 0)
+ dev_err(codec->dev,
+ "asoc: failed to remove %s: %d\n",
+ codec->name, err);
+ }
+
+ /* 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_dai_link(struct snd_soc_card *card, int num)
{
struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
/* 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 */
- if (codec && codec->probed) {
- if (codec->driver->remove) {
- err = codec->driver->remove(codec);
- if (err < 0)
- printk(KERN_ERR "asoc: failed to remove %s\n", codec->name);
- }
-
- /* Make sure all DAPM widgets are freed */
- snd_soc_dapm_free(codec);
-
- soc_cleanup_codec_debugfs(codec);
- device_remove_file(&rtd->dev, &dev_attr_codec_reg);
- codec->probed = 0;
- list_del(&codec->card_list);
- module_put(codec->dev->driver->owner);
- }
+ if (codec && codec->probed)
+ soc_remove_codec(codec);
/* remove the cpu_dai */
if (cpu_dai && cpu_dai->probed) {
}
}
+static void soc_set_name_prefix(struct snd_soc_card *card,
+ struct snd_soc_codec *codec)
+{
+ int i;
+
+ if (card->codec_conf == NULL)
+ return;
+
+ 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;
+ }
+ }
+}
+
+static int soc_probe_codec(struct snd_soc_card *card,
+ struct snd_soc_codec *codec)
+{
+ int ret = 0;
+
+ codec->card = card;
+ codec->dapm.card = card;
+ soc_set_name_prefix(card, codec);
+
+ if (codec->driver->probe) {
+ ret = codec->driver->probe(codec);
+ if (ret < 0) {
+ dev_err(codec->dev,
+ "asoc: failed to probe CODEC %s: %d\n",
+ codec->name, ret);
+ return ret;
+ }
+ }
+
+ soc_init_codec_debugfs(codec);
+
+ /* mark codec as probed and add to card codec list */
+ if (!try_module_get(codec->dev->driver->owner))
+ return -ENODEV;
+
+ codec->probed = 1;
+ list_add(&codec->card_list, &card->codec_dev_list);
+ list_add(&codec->dapm.list, &card->dapm_list);
+
+ return ret;
+}
+
static void rtd_release(struct device *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;
+ 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;
+ }
+
+ /* 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;
+
+ /* Make sure all DAPM widgets are instantiated */
+ snd_soc_dapm_new_widgets(&codec->dapm);
+
+ /* register the rtd device */
+ rtd->codec = codec;
+ rtd->card = card;
+ rtd->dev.parent = card->dev;
+ rtd->dev.release = rtd_release;
+ rtd->dev.init_name = name;
+ ret = device_register(&rtd->dev);
+ if (ret < 0) {
+ dev_err(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);
+
+ return 0;
+}
+
static int soc_probe_dai_link(struct snd_soc_card *card, int num)
{
struct snd_soc_dai_link *dai_link = &card->dai_link[num];
/* config components */
codec_dai->codec = codec;
- codec->card = card;
cpu_dai->platform = platform;
- rtd->card = card;
- rtd->dev.parent = card->dev;
codec_dai->card = card;
cpu_dai->card = card;
/* probe the CODEC */
if (!codec->probed) {
- if (codec->driver->probe) {
- ret = codec->driver->probe(codec);
- if (ret < 0) {
- printk(KERN_ERR "asoc: failed to probe CODEC %s\n",
- codec->name);
- return ret;
- }
- }
-
- soc_init_codec_debugfs(codec);
-
- /* mark codec as probed and add to card codec list */
- codec->probed = 1;
- list_add(&codec->card_list, &card->codec_dev_list);
+ ret = soc_probe_codec(card, codec);
+ if (ret < 0)
+ return ret;
}
/* probe the platform */
}
}
/* mark platform as probed and add to card platform list */
+
+ if (!try_module_get(platform->dev->driver->owner))
+ return -ENODEV;
+
platform->probed = 1;
list_add(&platform->card_list, &card->platform_dev_list);
}
/* DAPM dai link stream work */
INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
- /* now that all clients have probed, initialise the DAI link */
- if (dai_link->init) {
- ret = dai_link->init(rtd);
- if (ret < 0) {
- printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name);
- return ret;
- }
- }
-
- /* Make sure all DAPM widgets are instantiated */
- snd_soc_dapm_new_widgets(codec);
- snd_soc_dapm_sync(codec);
-
- /* register the rtd device */
- rtd->dev.release = rtd_release;
- rtd->dev.init_name = dai_link->name;
- ret = device_register(&rtd->dev);
- if (ret < 0) {
- printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret);
+ ret = soc_post_component_init(card, codec, num, 0);
+ if (ret)
return ret;
- }
- rtd->dev_registered = 1;
ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time);
if (ret < 0)
printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n");
- /* add DAPM sysfs entries for this codec */
- ret = snd_soc_dapm_sys_add(&rtd->dev);
- if (ret < 0)
- printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n");
-
- /* add codec sysfs entries */
- ret = device_create_file(&rtd->dev, &dev_attr_codec_reg);
- if (ret < 0)
- printk(KERN_WARNING "asoc: failed to add codec sysfs files\n");
-
/* create the pcm */
ret = soc_new_pcm(rtd, num);
if (ret < 0) {
}
#endif
+static int soc_probe_aux_dev(struct snd_soc_card *card, int 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);
+ goto out;
+
+found:
+ ret = soc_probe_codec(card, codec);
+ if (ret < 0)
+ return ret;
+
+ ret = soc_post_component_init(card, codec, num, 1);
+
+out:
+ return ret;
+}
+
+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;
+
+ /* 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);
+}
+
+static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
+ enum snd_soc_compress_type compress_type)
+{
+ 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, "Failed to set cache compression type: %d\n",
+ ret);
+ return ret;
+ }
+ codec->cache_init = 1;
+ return 0;
+}
+
static void snd_soc_instantiate_card(struct snd_soc_card *card)
{
- struct platform_device *pdev = to_platform_device(card->dev);
+ struct snd_soc_codec *codec;
+ struct snd_soc_codec_conf *codec_conf;
+ enum snd_soc_compress_type compress_type;
int ret, i;
mutex_lock(&card->mutex);
return;
}
+ /* initialize the register cache for each available codec */
+ 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);
+ if (ret < 0) {
+ mutex_unlock(&card->mutex);
+ return;
+ }
+ }
+
/* card bind complete so register a sound card */
ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
card->owner, 0, &card->snd_card);
/* initialise the sound card only once */
if (card->probe) {
- ret = card->probe(pdev);
+ ret = card->probe(card);
if (ret < 0)
goto card_probe_error;
}
}
}
+ for (i = 0; i < card->num_aux_devs; i++) {
+ ret = soc_probe_aux_dev(card, i);
+ if (ret < 0) {
+ pr_err("asoc: failed to add auxiliary devices %s: %d\n",
+ card->name, ret);
+ goto probe_aux_dev_err;
+ }
+ }
+
snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
"%s", card->name);
snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
ret = snd_card_register(card->snd_card);
if (ret < 0) {
printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name);
- goto probe_dai_err;
+ goto probe_aux_dev_err;
}
#ifdef CONFIG_SND_SOC_AC97_BUS
if (ret < 0) {
printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name);
while (--i >= 0)
- soc_unregister_ac97_dai_link(&card->rtd[i]);
- goto probe_dai_err;
+ soc_unregister_ac97_dai_link(card->rtd[i].codec);
+ goto probe_aux_dev_err;
}
}
#endif
mutex_unlock(&card->mutex);
return;
+probe_aux_dev_err:
+ for (i = 0; i < card->num_aux_devs; i++)
+ soc_remove_aux_dev(card, i);
+
probe_dai_err:
for (i = 0; i < card->num_links; i++)
soc_remove_dai_link(card, i);
card_probe_error:
if (card->remove)
- card->remove(pdev);
+ card->remove(card);
snd_card_free(card->snd_card);
struct snd_soc_card *card = platform_get_drvdata(pdev);
int ret = 0;
+ /*
+ * no card, so machine driver should be registering card
+ * we should not be here in that case so ret error
+ */
+ if (!card)
+ return -EINVAL;
+
/* Bodge while we unpick instantiation */
card->dev = &pdev->dev;
- INIT_LIST_HEAD(&card->dai_dev_list);
- INIT_LIST_HEAD(&card->codec_dev_list);
- INIT_LIST_HEAD(&card->platform_dev_list);
+ snd_soc_initialize_card_lists(card);
ret = snd_soc_register_card(card);
if (ret != 0) {
return 0;
}
-/* removes a socdev */
-static int soc_remove(struct platform_device *pdev)
+static int soc_cleanup_card_resources(struct snd_soc_card *card)
{
- struct snd_soc_card *card = platform_get_drvdata(pdev);
int i;
- if (card->instantiated) {
+ /* make sure any delayed work runs */
+ for (i = 0; i < card->num_rtd; i++) {
+ struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
+ flush_delayed_work_sync(&rtd->delayed_work);
+ }
- /* make sure any delayed work runs */
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
- run_delayed_work(&rtd->delayed_work);
- }
+ /* remove auxiliary devices */
+ for (i = 0; i < card->num_aux_devs; i++)
+ soc_remove_aux_dev(card, i);
- /* remove and free each DAI */
- for (i = 0; i < card->num_rtd; i++)
- soc_remove_dai_link(card, i);
+ /* remove and free each DAI */
+ for (i = 0; i < card->num_rtd; i++)
+ soc_remove_dai_link(card, i);
- /* remove the card */
- if (card->remove)
- card->remove(pdev);
+ soc_cleanup_card_debugfs(card);
- kfree(card->rtd);
- snd_card_free(card->snd_card);
- }
- snd_soc_unregister_card(card);
+ /* remove the card */
+ if (card->remove)
+ card->remove(card);
+
+ kfree(card->rtd);
+ snd_card_free(card->snd_card);
return 0;
+
}
-static int soc_poweroff(struct device *dev)
+/* removes a socdev */
+static int soc_remove(struct platform_device *pdev)
{
- struct platform_device *pdev = to_platform_device(dev);
struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ return 0;
+}
+
+int snd_soc_poweroff(struct device *dev)
+{
+ struct snd_soc_card *card = dev_get_drvdata(dev);
int i;
if (!card->instantiated)
* now, we're shutting down so no imminent restart. */
for (i = 0; i < card->num_rtd; i++) {
struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
- run_delayed_work(&rtd->delayed_work);
+ flush_delayed_work_sync(&rtd->delayed_work);
}
snd_soc_dapm_shutdown(card);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_poweroff);
-static const struct dev_pm_ops soc_pm_ops = {
- .suspend = soc_suspend,
- .resume = soc_resume,
- .poweroff = soc_poweroff,
+const struct dev_pm_ops snd_soc_pm_ops = {
+ .suspend = snd_soc_suspend,
+ .resume = snd_soc_resume,
+ .poweroff = snd_soc_poweroff,
};
/* ASoC platform driver */
.driver = {
.name = "soc-audio",
.owner = THIS_MODULE,
- .pm = &soc_pm_ops,
+ .pm = &snd_soc_pm_ops,
},
.probe = soc_probe,
.remove = soc_remove,
*
* Boolean function indiciating if a CODEC register is volatile.
*/
-int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg)
+int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
+ unsigned int reg)
{
- if (codec->driver->volatile_register)
- return codec->driver->volatile_register(reg);
+ if (codec->volatile_register)
+ return codec->volatile_register(codec, reg);
else
return 0;
}
}
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);
+
/**
* snd_soc_update_bits - update codec register bits
* @codec: audio codec
*
* Writes new register value.
*
- * Returns 1 for change else 0.
+ * 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)
{
int change;
unsigned int old, new;
+ int ret;
- old = snd_soc_read(codec, reg);
+ ret = snd_soc_read(codec, reg);
+ if (ret < 0)
+ return ret;
+
+ old = ret;
new = (old & ~mask) | value;
change = old != new;
- if (change)
- snd_soc_write(codec, reg, new);
+ if (change) {
+ ret = snd_soc_write(codec, reg, new);
+ if (ret < 0)
+ return ret;
+ }
return change;
}
const struct snd_kcontrol_new *controls, int num_controls)
{
struct snd_card *card = codec->card->snd_card;
+ char prefixed_name[44], *name;
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, codec, NULL));
+ if (codec->name_prefix) {
+ snprintf(prefixed_name, sizeof(prefixed_name), "%s %s",
+ codec->name_prefix, control->name);
+ name = prefixed_name;
+ } else {
+ name = control->name;
+ }
+ err = snd_ctl_add(card, snd_soc_cnew(control, codec, name));
if (err < 0) {
dev_err(codec->dev, "%s: Failed to add %s: %d\n",
- codec->name, control->name, err);
+ codec->name, name, err);
return err;
}
}
*
* @card: Card to register
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_register_card(struct snd_soc_card *card)
+int snd_soc_register_card(struct snd_soc_card *card)
{
int i;
if (!card->name || !card->dev)
return -EINVAL;
- card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links,
- GFP_KERNEL);
+ soc_init_card_debugfs(card);
+
+ card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) *
+ (card->num_links + card->num_aux_devs),
+ GFP_KERNEL);
if (card->rtd == NULL)
return -ENOMEM;
+ card->rtd_aux = &card->rtd[card->num_links];
for (i = 0; i < card->num_links; i++)
card->rtd[i].dai_link = &card->dai_link[i];
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_register_card);
/**
* snd_soc_unregister_card - Unregister a card with the ASoC core
*
* @card: Card to unregister
*
- * Note that currently this is an internal only function: it will be
- * exposed to machine drivers after further backporting of ASoC v2
- * registration APIs.
*/
-static int snd_soc_unregister_card(struct snd_soc_card *card)
+int snd_soc_unregister_card(struct snd_soc_card *card)
{
+ if (card->instantiated)
+ soc_cleanup_card_resources(card);
mutex_lock(&client_mutex);
list_del(&card->list);
mutex_unlock(&client_mutex);
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
/*
* Simplify DAI link configuration by removing ".-1" from device names
* and sanitizing names.
*/
-static inline char *fmt_single_name(struct device *dev, int *id)
+static char *fmt_single_name(struct device *dev, int *id)
{
char *found, name[NAME_SIZE];
int id1, id2;
if (dev_name(dev) == NULL)
return NULL;
- strncpy(name, dev_name(dev), NAME_SIZE);
+ strlcpy(name, dev_name(dev), NAME_SIZE);
/* are we a "%s.%d" name (platform and SPI components) */
found = strstr(name, dev->driver->name);
/* sanitize component name for DAI link creation */
snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
- strncpy(name, tmp, NAME_SIZE);
+ strlcpy(name, tmp, NAME_SIZE);
} else
*id = 0;
}
* @codec: codec to register
*/
int snd_soc_register_codec(struct device *dev,
- struct snd_soc_codec_driver *codec_drv,
- struct snd_soc_dai_driver *dai_drv, int num_dai)
+ 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_codec *codec;
int ret, i;
return -ENOMEM;
}
+ if (codec_drv->compress_type)
+ codec->compress_type = codec_drv->compress_type;
+ else
+ codec->compress_type = SND_SOC_FLAT_COMPRESSION;
+
+ 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->dapm.bias_level = SND_SOC_BIAS_OFF;
+ codec->dapm.dev = dev;
+ codec->dapm.codec = codec;
+ codec->dapm.seq_notifier = codec_drv->seq_notifier;
+ codec->dev = dev;
+ codec->driver = codec_drv;
+ codec->num_dai = num_dai;
+ mutex_init(&codec->mutex);
+
/* allocate CODEC register cache */
if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
-
- if (codec_drv->reg_cache_default)
- codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
- codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL);
- else
- codec->reg_cache = kzalloc(codec_drv->reg_cache_size *
- codec_drv->reg_word_size, GFP_KERNEL);
-
- if (codec->reg_cache == NULL) {
- kfree(codec->name);
- kfree(codec);
- return -ENOMEM;
+ 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 __devinitconst 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->dev = dev;
- codec->driver = codec_drv;
- codec->bias_level = SND_SOC_BIAS_OFF;
- codec->num_dai = num_dai;
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
+ 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;
+ }
for (i = 0; i < num_dai; i++) {
fixup_codec_formats(&dai_drv[i].playback);
if (num_dai) {
ret = snd_soc_register_dais(dev, dai_drv, num_dai);
if (ret < 0)
- goto error;
+ goto fail;
}
mutex_lock(&client_mutex);
pr_debug("Registered codec '%s'\n", codec->name);
return 0;
-error:
- if (codec->reg_cache)
- kfree(codec->reg_cache);
+fail:
+ kfree(codec->reg_def_copy);
+ codec->reg_def_copy = NULL;
kfree(codec->name);
kfree(codec);
return ret;
pr_debug("Unregistered codec '%s'\n", codec->name);
- if (codec->reg_cache)
- kfree(codec->reg_cache);
+ snd_soc_cache_exit(codec);
+ kfree(codec->reg_def_copy);
kfree(codec->name);
kfree(codec);
}
static int __init snd_soc_init(void)
{
#ifdef CONFIG_DEBUG_FS
- debugfs_root = debugfs_create_dir("asoc", NULL);
- if (IS_ERR(debugfs_root) || !debugfs_root) {
+ snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
+ if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
printk(KERN_WARNING
"ASoC: Failed to create debugfs directory\n");
- debugfs_root = NULL;
+ snd_soc_debugfs_root = NULL;
}
- if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL,
+ 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, debugfs_root, NULL,
+ 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, debugfs_root, NULL,
+ 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
static void __exit snd_soc_exit(void)
{
#ifdef CONFIG_DEBUG_FS
- debugfs_remove_recursive(debugfs_root);
+ debugfs_remove_recursive(snd_soc_debugfs_root);
#endif
platform_driver_unregister(&soc_driver);
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff