diff options
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_eld.c | 49 | ||||
| -rw-r--r-- | sound/pci/hda/hda_local.h | 2 | ||||
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 42 | ||||
| -rw-r--r-- | sound/pci/hda/patch_intelhdmi.c | 1 | ||||
| -rw-r--r-- | sound/pci/hda/patch_nvhdmi.c | 4 |
5 files changed, 95 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index d8da18a9e98b..803b298f7411 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -596,4 +596,53 @@ void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld) } EXPORT_SYMBOL_HDA(snd_hda_eld_proc_free); +/* update PCM info based on ELD */ +void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm, + struct hda_pcm_stream *codec_pars) +{ + int i; + + pcm->rates = 0; + pcm->formats = 0; + pcm->maxbps = 0; + pcm->channels_min = -1; + pcm->channels_max = 0; + for (i = 0; i < eld->sad_count; i++) { + struct cea_sad *a = &eld->sad[i]; + pcm->rates |= a->rates; + if (a->channels < pcm->channels_min) + pcm->channels_min = a->channels; + if (a->channels > pcm->channels_max) + pcm->channels_max = a->channels; + if (a->format == AUDIO_CODING_TYPE_LPCM) { + if (a->sample_bits & AC_SUPPCM_BITS_16) { + pcm->formats |= SNDRV_PCM_FMTBIT_S16_LE; + if (pcm->maxbps < 16) + pcm->maxbps = 16; + } + if (a->sample_bits & AC_SUPPCM_BITS_20) { + pcm->formats |= SNDRV_PCM_FMTBIT_S32_LE; + if (pcm->maxbps < 20) + pcm->maxbps = 20; + } + if (a->sample_bits & AC_SUPPCM_BITS_24) { + pcm->formats |= SNDRV_PCM_FMTBIT_S32_LE; + if (pcm->maxbps < 24) + pcm->maxbps = 24; + } + } + } + + if (!codec_pars) + return; + + /* restrict the parameters by the values the codec provides */ + pcm->rates &= codec_pars->rates; + pcm->formats &= codec_pars->formats; + pcm->channels_min = max(pcm->channels_min, codec_pars->channels_min); + pcm->channels_max = min(pcm->channels_max, codec_pars->channels_max); + pcm->maxbps = min(pcm->maxbps, codec_pars->maxbps); +} +EXPORT_SYMBOL_HDA(hdmi_eld_update_pcm_info); + #endif /* CONFIG_PROC_FS */ diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 7a97f126f6f7..28ab4aead48f 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -604,6 +604,8 @@ struct hdmi_eld { int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid); int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t); void snd_hdmi_show_eld(struct hdmi_eld *eld); +void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm, + struct hda_pcm_stream *codec_pars); #ifdef CONFIG_PROC_FS int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld, diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 522e0748ee99..2bc0f07cf33f 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -46,6 +46,7 @@ struct hdmi_spec { * export one pcm per pipe */ struct hda_pcm pcm_rec[MAX_HDMI_CVTS]; + struct hda_pcm_stream codec_pcm_pars[MAX_HDMI_CVTS]; /* * nvhdmi specific @@ -766,6 +767,47 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid, } /* + * HDA PCM callbacks + */ +static int hdmi_pcm_open(struct hda_pcm_stream *hinfo, + struct hda_codec *codec, + struct snd_pcm_substream *substream) +{ + struct hdmi_spec *spec = codec->spec; + struct hdmi_eld *eld; + struct hda_pcm_stream *codec_pars; + unsigned int idx; + + for (idx = 0; idx < spec->num_cvts; idx++) + if (hinfo->nid == spec->cvt[idx]) + break; + if (snd_BUG_ON(idx >= spec->num_cvts) || + snd_BUG_ON(idx >= spec->num_pins)) + return -EINVAL; + + /* save the PCM info the codec provides */ + codec_pars = &spec->codec_pcm_pars[idx]; + if (!codec_pars->rates) + *codec_pars = *hinfo; + + eld = &spec->sink_eld[idx]; + if (eld->sad_count > 0) { + hdmi_eld_update_pcm_info(eld, hinfo, codec_pars); + if (hinfo->channels_min > hinfo->channels_max || + !hinfo->rates || !hinfo->formats) + return -ENODEV; + } else { + /* fallback to the codec default */ + hinfo->channels_min = codec_pars->channels_min; + hinfo->channels_max = codec_pars->channels_max; + hinfo->rates = codec_pars->rates; + hinfo->formats = codec_pars->formats; + hinfo->maxbps = codec_pars->maxbps; + } + return 0; +} + +/* * HDA/HDMI auto parsing */ diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c index 5972d5e7d01f..d382d3c81c0f 100644 --- a/sound/pci/hda/patch_intelhdmi.c +++ b/sound/pci/hda/patch_intelhdmi.c @@ -80,6 +80,7 @@ static struct hda_pcm_stream intel_hdmi_pcm_playback = { .substreams = 1, .channels_min = 2, .ops = { + .open = hdmi_pcm_open, .prepare = intel_hdmi_playback_pcm_prepare, .cleanup = intel_hdmi_playback_pcm_cleanup, }, diff --git a/sound/pci/hda/patch_nvhdmi.c b/sound/pci/hda/patch_nvhdmi.c index 77e2b4028b9f..f636870dc718 100644 --- a/sound/pci/hda/patch_nvhdmi.c +++ b/sound/pci/hda/patch_nvhdmi.c @@ -347,10 +347,8 @@ static int nvhdmi_dig_playback_pcm_prepare_2ch(struct hda_pcm_stream *hinfo, static struct hda_pcm_stream nvhdmi_pcm_digital_playback_8ch_89 = { .substreams = 1, .channels_min = 2, - .rates = SUPPORTED_RATES, - .maxbps = SUPPORTED_MAXBPS, - .formats = SUPPORTED_FORMATS, .ops = { + .open = hdmi_pcm_open, .prepare = nvhdmi_dig_playback_pcm_prepare_8ch_89, .cleanup = nvhdmi_playback_pcm_cleanup, }, |
