FORMAT(DSD_U32_LE),
};
+/**
+ * snd_pcm_format_name - Return a name string for the given PCM format
+ * @format: PCM format
+ */
const char *snd_pcm_format_name(snd_pcm_format_t format)
{
if ((__force unsigned int)format >= ARRAY_SIZE(snd_pcm_format_names))
}
#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+static void snd_pcm_xrun_injection_write(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_pcm_substream *substream = entry->private_data;
+ struct snd_pcm_runtime *runtime;
+
+ snd_pcm_stream_lock_irq(substream);
+ runtime = substream->runtime;
+ if (runtime && runtime->status->state == SNDRV_PCM_STATE_RUNNING)
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+ snd_pcm_stream_unlock_irq(substream);
+}
+
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
}
substream->proc_status_entry = entry;
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+ entry = snd_info_create_card_entry(card, "xrun_injection",
+ substream->proc_root);
+ if (entry) {
+ entry->private_data = substream;
+ entry->c.text.read = NULL;
+ entry->c.text.write = snd_pcm_xrun_injection_write;
+ entry->mode = S_IFREG | S_IWUSR;
+ if (snd_info_register(entry) < 0) {
+ snd_info_free_entry(entry);
+ entry = NULL;
+ }
+ }
+ substream->proc_xrun_injection_entry = entry;
+#endif /* CONFIG_SND_PCM_XRUN_DEBUG */
+
return 0;
}
substream->proc_sw_params_entry = NULL;
snd_info_free_entry(substream->proc_status_entry);
substream->proc_status_entry = NULL;
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
+ snd_info_free_entry(substream->proc_xrun_injection_entry);
+ substream->proc_xrun_injection_entry = NULL;
+#endif
snd_info_free_entry(substream->proc_root);
substream->proc_root = NULL;
return 0;
}
return 0;
}
-
EXPORT_SYMBOL(snd_pcm_new_stream);
static int _snd_pcm_new(struct snd_card *card, const char *id, int device,
return 0;
}
+/**
+ * snd_pcm_notify - Add/remove the notify list
+ * @notify: PCM notify list
+ * @nfree: 0 = register, 1 = unregister
+ *
+ * This adds the given notifier to the global list so that the callback is
+ * called for each registered PCM devices. This exists only for PCM OSS
+ * emulation, so far.
+ */
int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
{
struct snd_pcm *pcm;
mutex_unlock(®ister_mutex);
return 0;
}
-
EXPORT_SYMBOL(snd_pcm_notify);
#ifdef CONFIG_PROC_FS