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Diffstat (limited to 'sound/core/pcm.c')
-rw-r--r--sound/core/pcm.c56
1 files changed, 42 insertions, 14 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 17f45e8aa89..43932e8dce6 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -49,6 +49,8 @@ static struct snd_pcm *snd_pcm_get(struct snd_card *card, int device)
struct snd_pcm *pcm;
list_for_each_entry(pcm, &snd_pcm_devices, list) {
+ if (pcm->internal)
+ continue;
if (pcm->card == card && pcm->device == device)
return pcm;
}
@@ -60,6 +62,8 @@ static int snd_pcm_next(struct snd_card *card, int device)
struct snd_pcm *pcm;
list_for_each_entry(pcm, &snd_pcm_devices, list) {
+ if (pcm->internal)
+ continue;
if (pcm->card == card && pcm->device > device)
return pcm->device;
else if (pcm->card->number > card->number)
@@ -291,7 +295,7 @@ static const char *snd_pcm_state_name(snd_pcm_state_t state)
return snd_pcm_state_names[(__force int)state];
}
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
#include <linux/soundcard.h>
static const char *snd_pcm_oss_format_name(int format)
@@ -334,7 +338,8 @@ static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (! info) {
- printk(KERN_DEBUG "snd_pcm_proc_info_read: cannot malloc\n");
+ pcm_dbg(substream->pcm,
+ "snd_pcm_proc_info_read: cannot malloc\n");
return;
}
@@ -394,7 +399,7 @@ static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "rate: %u (%u/%u)\n", runtime->rate, runtime->rate_num, runtime->rate_den);
snd_iprintf(buffer, "period_size: %lu\n", runtime->period_size);
snd_iprintf(buffer, "buffer_size: %lu\n", runtime->buffer_size);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
if (substream->oss.oss) {
snd_iprintf(buffer, "OSS format: %s\n", snd_pcm_oss_format_name(runtime->oss.format));
snd_iprintf(buffer, "OSS channels: %u\n", runtime->oss.channels);
@@ -647,7 +652,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
struct snd_pcm_str *pstr = &pcm->streams[stream];
struct snd_pcm_substream *substream, *prev;
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
mutex_init(&pstr->oss.setup_mutex);
#endif
pstr->stream = stream;
@@ -656,7 +661,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
if (substream_count > 0 && !pcm->internal) {
err = snd_pcm_stream_proc_init(pstr);
if (err < 0) {
- snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
+ pcm_err(pcm, "Error in snd_pcm_stream_proc_init\n");
return err;
}
}
@@ -664,7 +669,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
for (idx = 0, prev = NULL; idx < substream_count; idx++) {
substream = kzalloc(sizeof(*substream), GFP_KERNEL);
if (substream == NULL) {
- snd_printk(KERN_ERR "Cannot allocate PCM substream\n");
+ pcm_err(pcm, "Cannot allocate PCM substream\n");
return -ENOMEM;
}
substream->pcm = pcm;
@@ -681,7 +686,8 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
if (!pcm->internal) {
err = snd_pcm_substream_proc_init(substream);
if (err < 0) {
- snd_printk(KERN_ERR "Error in snd_pcm_stream_proc_init\n");
+ pcm_err(pcm,
+ "Error in snd_pcm_stream_proc_init\n");
if (prev == NULL)
pstr->substream = NULL;
else
@@ -720,7 +726,7 @@ static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
*rpcm = NULL;
pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
if (pcm == NULL) {
- snd_printk(KERN_ERR "Cannot allocate PCM\n");
+ dev_err(card->dev, "Cannot allocate PCM\n");
return -ENOMEM;
}
pcm->card = card;
@@ -803,7 +809,7 @@ EXPORT_SYMBOL(snd_pcm_new_internal);
static void snd_pcm_free_stream(struct snd_pcm_str * pstr)
{
struct snd_pcm_substream *substream, *substream_next;
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
struct snd_pcm_oss_setup *setup, *setupn;
#endif
substream = pstr->substream;
@@ -815,7 +821,7 @@ static void snd_pcm_free_stream(struct snd_pcm_str * pstr)
substream = substream_next;
}
snd_pcm_stream_proc_done(pstr);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
for (setup = pstr->oss.setup_list; setup; setup = setupn) {
setupn = setup->next;
kfree(setup->task_name);
@@ -1012,8 +1018,20 @@ static ssize_t show_pcm_class(struct device *dev,
return snprintf(buf, PAGE_SIZE, "%s\n", str);
}
-static struct device_attribute pcm_attrs =
- __ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL);
+static DEVICE_ATTR(pcm_class, S_IRUGO, show_pcm_class, NULL);
+static struct attribute *pcm_dev_attrs[] = {
+ &dev_attr_pcm_class.attr,
+ NULL
+};
+
+static struct attribute_group pcm_dev_attr_group = {
+ .attrs = pcm_dev_attrs,
+};
+
+static const struct attribute_group *pcm_dev_attr_groups[] = {
+ &pcm_dev_attr_group,
+ NULL
+};
static int snd_pcm_dev_register(struct snd_device *device)
{
@@ -1063,8 +1081,18 @@ static int snd_pcm_dev_register(struct snd_device *device)
mutex_unlock(&register_mutex);
return err;
}
- snd_add_device_sysfs_file(devtype, pcm->card, pcm->device,
- &pcm_attrs);
+
+ dev = snd_get_device(devtype, pcm->card, pcm->device);
+ if (dev) {
+ err = sysfs_create_groups(&dev->kobj,
+ pcm_dev_attr_groups);
+ if (err < 0)
+ dev_warn(dev,
+ "pcm %d:%d: cannot create sysfs groups\n",
+ pcm->card->number, pcm->device);
+ put_device(dev);
+ }
+
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
snd_pcm_timer_init(substream);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 12:37:24 +0000