#include <linux/init.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/pcm.h>
static LIST_HEAD(snd_pcm_devices);
static LIST_HEAD(snd_pcm_notify_list);
-static DECLARE_MUTEX(register_mutex);
+static DEFINE_MUTEX(register_mutex);
static int snd_pcm_free(struct snd_pcm *pcm);
static int snd_pcm_dev_free(struct snd_device *device);
if (get_user(device, (int __user *)arg))
return -EFAULT;
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
device = device < 0 ? 0 : device + 1;
while (device < SNDRV_PCM_DEVICES) {
if (snd_pcm_search(card, device))
}
if (device == SNDRV_PCM_DEVICES)
device = -1;
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
if (put_user(device, (int __user *)arg))
return -EFAULT;
return 0;
return -EINVAL;
if (get_user(subdevice, &info->subdevice))
return -EFAULT;
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
pcm = snd_pcm_search(card, device);
if (pcm == NULL) {
err = -ENXIO;
}
err = snd_pcm_info_user(substream, info);
_error:
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return err;
}
case SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE:
}
return -ENOIOCTLCMD;
}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS)
+
#define STATE(v) [SNDRV_PCM_STATE_##v] = #v
#define STREAM(v) [SNDRV_PCM_STREAM_##v] = #v
#define READY(v) [SNDRV_PCM_READY_##v] = #v
#define FORMAT(v) [SNDRV_PCM_FORMAT_##v] = #v
#define SUBFORMAT(v) [SNDRV_PCM_SUBFORMAT_##v] = #v
-static char *snd_pcm_stream_names[] = {
- STREAM(PLAYBACK),
- STREAM(CAPTURE),
-};
-
-static char *snd_pcm_state_names[] = {
- STATE(OPEN),
- STATE(SETUP),
- STATE(PREPARED),
- STATE(RUNNING),
- STATE(XRUN),
- STATE(DRAINING),
- STATE(PAUSED),
- STATE(SUSPENDED),
-};
-
-static char *snd_pcm_access_names[] = {
- ACCESS(MMAP_INTERLEAVED),
- ACCESS(MMAP_NONINTERLEAVED),
- ACCESS(MMAP_COMPLEX),
- ACCESS(RW_INTERLEAVED),
- ACCESS(RW_NONINTERLEAVED),
-};
-
static char *snd_pcm_format_names[] = {
FORMAT(S8),
FORMAT(U8),
FORMAT(U18_3BE),
};
+const char *snd_pcm_format_name(snd_pcm_format_t format)
+{
+ return snd_pcm_format_names[format];
+}
+
+static char *snd_pcm_stream_names[] = {
+ STREAM(PLAYBACK),
+ STREAM(CAPTURE),
+};
+
+static char *snd_pcm_state_names[] = {
+ STATE(OPEN),
+ STATE(SETUP),
+ STATE(PREPARED),
+ STATE(RUNNING),
+ STATE(XRUN),
+ STATE(DRAINING),
+ STATE(PAUSED),
+ STATE(SUSPENDED),
+};
+
+static char *snd_pcm_access_names[] = {
+ ACCESS(MMAP_INTERLEAVED),
+ ACCESS(MMAP_NONINTERLEAVED),
+ ACCESS(MMAP_COMPLEX),
+ ACCESS(RW_INTERLEAVED),
+ ACCESS(RW_NONINTERLEAVED),
+};
+
static char *snd_pcm_subformat_names[] = {
SUBFORMAT(STD),
};
return snd_pcm_access_names[access];
}
-const char *snd_pcm_format_name(snd_pcm_format_t format)
-{
- return snd_pcm_format_names[format];
-}
-
static const char *snd_pcm_subformat_name(snd_pcm_subformat_t subformat)
{
return snd_pcm_subformat_names[subformat];
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
#include <linux/soundcard.h>
+
static const char *snd_pcm_oss_format_name(int format)
{
switch (format) {
}
#endif
-#ifdef CONFIG_PROC_FS
static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,
struct snd_info_buffer *buffer)
{
snd_iprintf(buffer, "hw_ptr : %ld\n", runtime->status->hw_ptr);
snd_iprintf(buffer, "appl_ptr : %ld\n", runtime->control->appl_ptr);
}
-#endif
#ifdef CONFIG_SND_DEBUG
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry,
}
return 0;
}
+#else /* !CONFIG_PROC_FS */
+static inline int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr) { return 0; }
+static inline int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr) { return 0; }
+static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }
+static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }
+#endif /* CONFIG_PROC_FS */
/**
* snd_pcm_new_stream - create a new PCM stream
struct snd_pcm_substream *substream, *prev;
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- init_MUTEX(&pstr->oss.setup_mutex);
+ mutex_init(&pstr->oss.setup_mutex);
#endif
pstr->stream = stream;
pstr->pcm = pcm;
snd_pcm_free(pcm);
return err;
}
- init_MUTEX(&pcm->open_mutex);
+ mutex_init(&pcm->open_mutex);
init_waitqueue_head(&pcm->open_wait);
if ((err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops)) < 0) {
snd_pcm_free(pcm);
struct snd_pcm *pcm = device->device_data;
snd_assert(pcm != NULL && device != NULL, return -ENXIO);
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
if (snd_pcm_search(pcm->card, pcm->device)) {
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return -EBUSY;
}
list_add_tail(&pcm->list, &snd_pcm_devices);
pcm, str)) < 0)
{
list_del(&pcm->list);
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return err;
}
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_register(pcm);
}
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return 0;
}
struct snd_pcm_substream *substream;
int cidx;
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
list_del_init(&pcm->list);
for (cidx = 0; cidx < 2; cidx++)
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_disconnect(pcm);
}
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return 0;
}
struct snd_pcm *pcm = device->device_data;
snd_assert(pcm != NULL, return -ENXIO);
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
list_del(&pcm->list);
for (cidx = 0; cidx < 2; cidx++) {
devtype = -1;
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_unregister(pcm);
}
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return snd_pcm_free(pcm);
}
struct list_head *p;
snd_assert(notify != NULL && notify->n_register != NULL && notify->n_unregister != NULL, return -EINVAL);
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
if (nfree) {
list_del(¬ify->list);
list_for_each(p, &snd_pcm_devices)
list_for_each(p, &snd_pcm_devices)
notify->n_register(list_entry(p, struct snd_pcm, list));
}
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
return 0;
}
+#ifdef CONFIG_PROC_FS
/*
* Info interface
*/
struct list_head *p;
struct snd_pcm *pcm;
- down(®ister_mutex);
+ mutex_lock(®ister_mutex);
list_for_each(p, &snd_pcm_devices) {
pcm = list_entry(p, struct snd_pcm, list);
snd_iprintf(buffer, "%02i-%02i: %s : %s",
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count);
snd_iprintf(buffer, "\n");
}
- up(®ister_mutex);
+ mutex_unlock(®ister_mutex);
}
-/*
- * ENTRY functions
- */
-
static struct snd_info_entry *snd_pcm_proc_entry = NULL;
-static int __init alsa_pcm_init(void)
+static void snd_pcm_proc_init(void)
{
struct snd_info_entry *entry;
- snd_ctl_register_ioctl(snd_pcm_control_ioctl);
- snd_ctl_register_ioctl_compat(snd_pcm_control_ioctl);
if ((entry = snd_info_create_module_entry(THIS_MODULE, "pcm", NULL)) != NULL) {
snd_info_set_text_ops(entry, NULL, SNDRV_CARDS * SNDRV_PCM_DEVICES * 128,
snd_pcm_proc_read);
}
}
snd_pcm_proc_entry = entry;
+}
+
+static void snd_pcm_proc_done(void)
+{
+ if (snd_pcm_proc_entry)
+ snd_info_unregister(snd_pcm_proc_entry);
+}
+
+#else /* !CONFIG_PROC_FS */
+#define snd_pcm_proc_init()
+#define snd_pcm_proc_done()
+#endif /* CONFIG_PROC_FS */
+
+
+/*
+ * ENTRY functions
+ */
+
+static int __init alsa_pcm_init(void)
+{
+ snd_ctl_register_ioctl(snd_pcm_control_ioctl);
+ snd_ctl_register_ioctl_compat(snd_pcm_control_ioctl);
+ snd_pcm_proc_init();
return 0;
}
{
snd_ctl_unregister_ioctl(snd_pcm_control_ioctl);
snd_ctl_unregister_ioctl_compat(snd_pcm_control_ioctl);
- if (snd_pcm_proc_entry) {
- snd_info_unregister(snd_pcm_proc_entry);
- snd_pcm_proc_entry = NULL;
- }
+ snd_pcm_proc_done();
}
module_init(alsa_pcm_init)
EXPORT_SYMBOL(snd_pcm_notify);
EXPORT_SYMBOL(snd_pcm_open_substream);
EXPORT_SYMBOL(snd_pcm_release_substream);
-EXPORT_SYMBOL(snd_pcm_format_name);
/* pcm_native.c */
EXPORT_SYMBOL(snd_pcm_link_rwlock);
#ifdef CONFIG_PM
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