From 97d73d978271ade27fc751ad606f23c1c4c43678 Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Fri, 2 Dec 2022 16:28:26 +0100 Subject: ALSA: hda: Allow for compress stream to hdac_ext_stream assignment 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 Acked-by: Takashi Iwai Link: https://lore.kernel.org/r/20221202152841.672536-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- include/sound/hdaudio_ext.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') 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, -- cgit v1.2.3-73-gaa49b From ee0b089d660021792e4ab4dda191b097ce1e964f Mon Sep 17 00:00:00 2001 From: Kai Vehmanen Date: Fri, 9 Dec 2022 12:18:22 +0200 Subject: ALSA: hda/hdmi: fix stream-id config keep-alive for rt suspend When the new style KAE keep-alive implementation is used on compatible Intel hardware, the clocks are maintained when codec is in D3. The generic code in hda_cleanup_all_streams() can however interfere with generation of audio samples in this mode, by setting the stream and channel ids to zero. To get full benefit of the keepalive, set the new no_stream_clean_at_suspend quirk bit on affected Intel hardware. When this bit is set, stream cleanup is skipped in hda_call_codec_suspend(). Special handling is needed for the case when system goes to suspend. The stream id programming can be lost in this case. This will also cause codec->cvt_setups to be out of sync. Handle this by implementing custom suspend/resume handlers. If keep-alive is active for any converter, set the quirk flags no_stream_clean_at_suspend and forced_resume. Upon resume, keepalive programming is restored if needed. Fixes: 15175a4f2bbb ("ALSA: hda/hdmi: add keep-alive support for ADL-P and DG2") Signed-off-by: Kai Vehmanen Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20221209101822.3893675-4-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai --- include/sound/hda_codec.h | 1 + sound/pci/hda/hda_codec.c | 3 +- sound/pci/hda/patch_hdmi.c | 90 +++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 92 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 25ec8c181688..eba23daf2c29 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -258,6 +258,7 @@ struct hda_codec { unsigned int link_down_at_suspend:1; /* link down at runtime suspend */ unsigned int relaxed_resume:1; /* don't resume forcibly for jack */ unsigned int forced_resume:1; /* forced resume for jack */ + unsigned int no_stream_clean_at_suspend:1; /* do not clean streams at suspend */ #ifdef CONFIG_PM unsigned long power_on_acct; diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index b4d1e658c556..edd653ece70d 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2886,7 +2886,8 @@ static unsigned int hda_call_codec_suspend(struct hda_codec *codec) snd_hdac_enter_pm(&codec->core); if (codec->patch_ops.suspend) codec->patch_ops.suspend(codec); - hda_cleanup_all_streams(codec); + if (!codec->no_stream_clean_at_suspend) + hda_cleanup_all_streams(codec); state = hda_set_power_state(codec, AC_PWRST_D3); update_power_acct(codec, true); snd_hdac_leave_pm(&codec->core); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index f8e6ff7f8820..8015e4471267 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2926,6 +2926,88 @@ static void i915_pin_cvt_fixup(struct hda_codec *codec, } } +#ifdef CONFIG_PM +static int i915_adlp_hdmi_suspend(struct hda_codec *codec) +{ + struct hdmi_spec *spec = codec->spec; + bool silent_streams = false; + int pin_idx, res; + + res = generic_hdmi_suspend(codec); + + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx); + + if (per_pin->silent_stream) { + silent_streams = true; + break; + } + } + + if (silent_streams && spec->silent_stream_type == SILENT_STREAM_KAE) { + /* + * stream-id should remain programmed when codec goes + * to runtime suspend + */ + codec->no_stream_clean_at_suspend = 1; + + /* + * the system might go to S3, in which case keep-alive + * must be reprogrammed upon resume + */ + codec->forced_resume = 1; + + codec_dbg(codec, "HDMI: KAE active at suspend\n"); + } else { + codec->no_stream_clean_at_suspend = 0; + codec->forced_resume = 0; + } + + return res; +} + +static int i915_adlp_hdmi_resume(struct hda_codec *codec) +{ + struct hdmi_spec *spec = codec->spec; + int pin_idx, res; + + res = generic_hdmi_resume(codec); + + /* KAE not programmed at suspend, nothing to do here */ + if (!codec->no_stream_clean_at_suspend) + return res; + + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx); + + /* + * If system was in suspend with monitor connected, + * the codec setting may have been lost. Re-enable + * keep-alive. + */ + if (per_pin->silent_stream) { + unsigned int param; + + param = snd_hda_codec_read(codec, per_pin->cvt_nid, 0, + AC_VERB_GET_CONV, 0); + if (!param) { + codec_dbg(codec, "HDMI: KAE: restore stream id\n"); + silent_stream_enable_i915(codec, per_pin); + } + + param = snd_hda_codec_read(codec, per_pin->cvt_nid, 0, + AC_VERB_GET_DIGI_CONVERT_1, 0); + if (!(param & (AC_DIG3_KAE << 16))) { + codec_dbg(codec, "HDMI: KAE: restore DIG3_KAE\n"); + silent_stream_set_kae(codec, per_pin, true); + } + } + } + + return res; +} +#endif + /* precondition and allocation for Intel codecs */ static int alloc_intel_hdmi(struct hda_codec *codec) { @@ -3056,8 +3138,14 @@ static int patch_i915_adlp_hdmi(struct hda_codec *codec) if (!res) { spec = codec->spec; - if (spec->silent_stream_type) + if (spec->silent_stream_type) { spec->silent_stream_type = SILENT_STREAM_KAE; + +#ifdef CONFIG_PM + codec->patch_ops.resume = i915_adlp_hdmi_resume; + codec->patch_ops.suspend = i915_adlp_hdmi_suspend; +#endif + } } return res; -- cgit v1.2.3-73-gaa49b