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| author | Takashi Iwai <tiwai@suse.de> | 2010-08-13 08:45:23 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-08-13 08:45:23 +0200 |
| commit | bbbe33900d1f3c4402148ccb85234a741a6606a3 (patch) | |
| tree | 294143653bfb5a045dea0396b8fee00ed7164b6e /sound/pci/hda/hda_local.h | |
| parent | ALSA: hda - Adding support for new IDT 92HD87XX codecs (diff) | |
| download | linux-bbbe33900d1f3c4402148ccb85234a741a6606a3.tar.xz linux-bbbe33900d1f3c4402148ccb85234a741a6606a3.zip | |
ALSA: hda - Restrict PCM parameters per ELD information over HDMI
When a device is plugged over HDMI, it passes some information in ELD
including the supported PCM parameters like formats, rates, channels.
This patch adds the check to PCM open callback of HDMI streams so that
only valid parameters the device supports are used.
When no device is plugged, the parameters the codec supports are used;
it's mostly all parameters the hardware can work. This is for apps
that are started before device plugging and do probing (e.g. a sound
daemon), so that at least, probing would work even before the device
plugging.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_local.h')
| -rw-r--r-- | sound/pci/hda/hda_local.h | 2 |
1 files changed, 2 insertions, 0 deletions
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, |