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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /sound/core/pcm_local.h
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/core/pcm_local.h')
-rw-r--r--sound/core/pcm_local.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/sound/core/pcm_local.h b/sound/core/pcm_local.h
new file mode 100644
index 000000000..b3e8be5ae
--- /dev/null
+++ b/sound/core/pcm_local.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * pcm_local.h - a local header file for snd-pcm module.
+ *
+ * Copyright (c) Takashi Sakamoto <o-takashi@sakamocchi.jp>
+ */
+
+#ifndef __SOUND_CORE_PCM_LOCAL_H
+#define __SOUND_CORE_PCM_LOCAL_H
+
+extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates;
+
+void snd_interval_mul(const struct snd_interval *a,
+ const struct snd_interval *b, struct snd_interval *c);
+void snd_interval_div(const struct snd_interval *a,
+ const struct snd_interval *b, struct snd_interval *c);
+void snd_interval_muldivk(const struct snd_interval *a,
+ const struct snd_interval *b,
+ unsigned int k, struct snd_interval *c);
+void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
+ const struct snd_interval *b, struct snd_interval *c);
+
+int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime,
+ snd_pcm_hw_param_t var, u_int32_t mask);
+
+int pcm_lib_apply_appl_ptr(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t appl_ptr);
+int snd_pcm_update_state(struct snd_pcm_substream *substream,
+ struct snd_pcm_runtime *runtime);
+int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream);
+
+void snd_pcm_playback_silence(struct snd_pcm_substream *substream,
+ snd_pcm_uframes_t new_hw_ptr);
+
+static inline snd_pcm_uframes_t
+snd_pcm_avail(struct snd_pcm_substream *substream)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return snd_pcm_playback_avail(substream->runtime);
+ else
+ return snd_pcm_capture_avail(substream->runtime);
+}
+
+static inline snd_pcm_uframes_t
+snd_pcm_hw_avail(struct snd_pcm_substream *substream)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return snd_pcm_playback_hw_avail(substream->runtime);
+ else
+ return snd_pcm_capture_hw_avail(substream->runtime);
+}
+
+#ifdef CONFIG_SND_PCM_TIMER
+void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream);
+void snd_pcm_timer_init(struct snd_pcm_substream *substream);
+void snd_pcm_timer_done(struct snd_pcm_substream *substream);
+#else
+static inline void
+snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) {}
+static inline void snd_pcm_timer_init(struct snd_pcm_substream *substream) {}
+static inline void snd_pcm_timer_done(struct snd_pcm_substream *substream) {}
+#endif
+
+void __snd_pcm_xrun(struct snd_pcm_substream *substream);
+void snd_pcm_group_init(struct snd_pcm_group *group);
+void snd_pcm_sync_stop(struct snd_pcm_substream *substream, bool sync_irq);
+
+#ifdef CONFIG_SND_DMA_SGBUF
+struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream,
+ unsigned long offset);
+#endif
+
+#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime)
+
+#endif /* __SOUND_CORE_PCM_LOCAL_H */