| Message ID | 20221201175619.504758-2-cezary.rojewski@intel.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | ASoC: Intel: avs: Data probing and fw logging | expand |
On Thu, 01 Dec 2022 18:56:04 +0100, Cezary Rojewski wrote: > > Currently only PCM streams can enlist hdac_stream for their data > transfer. Add cstream field to hdac_ext_stream to expose possibility of > compress stream assignment in place of PCM one. > Limited to HOST-type only as there no other users on the horizon. > > Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Acked-by: Takashi Iwai <tiwai@suse.de> thanks, Takashi > --- > include/sound/hdaudio_ext.h | 2 ++ > sound/hda/ext/hdac_ext_stream.c | 41 +++++++++++++++++++++++++++++++++ > 2 files changed, 43 insertions(+) > > diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h > index 68ab89211de2..511211f4a2b6 100644 > --- a/include/sound/hdaudio_ext.h > +++ b/include/sound/hdaudio_ext.h > @@ -75,6 +75,8 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus, > struct snd_pcm_substream *substream, > int type); > void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type); > +struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus, > + struct snd_compr_stream *cstream); > void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus, > struct hdac_ext_stream *hext_stream, bool decouple); > void snd_hdac_ext_stream_decouple(struct hdac_bus *bus, > diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c > index 2a071a09224d..11b7119cc47e 100644 > --- a/sound/hda/ext/hdac_ext_stream.c > +++ b/sound/hda/ext/hdac_ext_stream.c > @@ -14,6 +14,7 @@ > #include <sound/pcm.h> > #include <sound/hda_register.h> > #include <sound/hdaudio_ext.h> > +#include <sound/compress_driver.h> > > /** > * snd_hdac_ext_stream_init - initialize each stream (aka device) > @@ -367,3 +368,43 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type) > > } > EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release); > + > +/** > + * snd_hdac_ext_cstream_assign - assign a host stream for compress > + * @bus: HD-audio core bus > + * @cstream: Compress stream to assign > + * > + * Assign an unused host stream for the given compress stream. > + * If no stream is free, NULL is returned. Stream is decoupled > + * before assignment. > + */ > +struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus, > + struct snd_compr_stream *cstream) > +{ > + struct hdac_ext_stream *res = NULL; > + struct hdac_stream *hstream; > + > + spin_lock_irq(&bus->reg_lock); > + list_for_each_entry(hstream, &bus->stream_list, list) { > + struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream); > + > + if (hstream->direction != cstream->direction) > + continue; > + > + if (!hstream->opened) { > + res = hext_stream; > + break; > + } > + } > + > + if (res) { > + snd_hdac_ext_stream_decouple_locked(bus, res, true); > + res->hstream.opened = 1; > + res->hstream.running = 0; > + res->hstream.cstream = cstream; > + } > + spin_unlock_irq(&bus->reg_lock); > + > + return res; > +} > +EXPORT_SYMBOL_GPL(snd_hdac_ext_cstream_assign); > -- > 2.25.1 >
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h index 68ab89211de2..511211f4a2b6 100644 --- a/include/sound/hdaudio_ext.h +++ b/include/sound/hdaudio_ext.h @@ -75,6 +75,8 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus, struct snd_pcm_substream *substream, int type); void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type); +struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus, + struct snd_compr_stream *cstream); void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus, struct hdac_ext_stream *hext_stream, bool decouple); void snd_hdac_ext_stream_decouple(struct hdac_bus *bus, diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index 2a071a09224d..11b7119cc47e 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -14,6 +14,7 @@ #include <sound/pcm.h> #include <sound/hda_register.h> #include <sound/hdaudio_ext.h> +#include <sound/compress_driver.h> /** * snd_hdac_ext_stream_init - initialize each stream (aka device) @@ -367,3 +368,43 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type) } EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_release); + +/** + * snd_hdac_ext_cstream_assign - assign a host stream for compress + * @bus: HD-audio core bus + * @cstream: Compress stream to assign + * + * Assign an unused host stream for the given compress stream. + * If no stream is free, NULL is returned. Stream is decoupled + * before assignment. + */ +struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus, + struct snd_compr_stream *cstream) +{ + struct hdac_ext_stream *res = NULL; + struct hdac_stream *hstream; + + spin_lock_irq(&bus->reg_lock); + list_for_each_entry(hstream, &bus->stream_list, list) { + struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream); + + if (hstream->direction != cstream->direction) + continue; + + if (!hstream->opened) { + res = hext_stream; + break; + } + } + + if (res) { + snd_hdac_ext_stream_decouple_locked(bus, res, true); + res->hstream.opened = 1; + res->hstream.running = 0; + res->hstream.cstream = cstream; + } + spin_unlock_irq(&bus->reg_lock); + + return res; +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_cstream_assign);
Currently only PCM streams can enlist hdac_stream for their data transfer. Add cstream field to hdac_ext_stream to expose possibility of compress stream assignment in place of PCM one. Limited to HOST-type only as there no other users on the horizon. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> --- include/sound/hdaudio_ext.h | 2 ++ sound/hda/ext/hdac_ext_stream.c | 41 +++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+)