diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-15 11:22:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-15 11:22:00 -0700 |
| commit | 1b68c9596ce17a1e06918ed65fc3d19b92b04aab (patch) | |
| tree | d7588c281a92fb30604ddc23f88f748be028921d /sound/pci/hda/patch_hdmi.c | |
| parent | 5a4179460cb50d939a2ae713cf88fcbff75f2c1c (diff) | |
| parent | aaae5272118bcce90d11629f15bc01ea8e545e6d (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: sound/usb/format: silence uninitialized variable warnings
MAINTAINERS: Add Ian Lartey as comaintaner for Wolfson devices
MAINTAINERS: Make Wolfson entry also cover CODEC drivers
ASoC: Only tweak WM8994 chip configuration on devices up to rev D
ASoC: Optimise DSP performance for WM8994
ALSA: hda - Fix dynamic ADC change working again
ALSA: hda - Restrict PCM parameters per ELD information over HDMI
sound: oss: sh_dac_audio.c removed duplicated #include
Diffstat (limited to 'sound/pci/hda/patch_hdmi.c')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 522e0748ee9..2bc0f07cf33 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 */ |