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ALSA: hda - Fix channel maps for Nvidia 7x 8ch HDMI codecs 

Some old Nvidia HDMI codecs with 8ch support only 2/8 or
2/6/8 channels and with the fixed CLFE-first map.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-08-01 12:17:41 +02:00
parent d45e6889ee
commit 53775b0d0c
1 changed files with 39 additions and 0 deletions
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39
sound/pci/hda/patch_hdmi.c
View File

@ -2155,6 +2155,43 @@ static int patch_nvhdmi_2ch(struct hda_codec *codec)
return 0;
}
static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
int err = simple_playback_build_pcms(codec);
spec->pcm_rec[0].own_chmap = true;
return err;
}
static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
{
struct hdmi_spec *spec = codec->spec;
struct snd_pcm_chmap *chmap;
int err;
err = simple_playback_build_controls(codec);
if (err < 0)
return err;
/* add channel maps */
err = snd_pcm_add_chmap_ctls(spec->pcm_rec[0].pcm,
SNDRV_PCM_STREAM_PLAYBACK,
snd_pcm_alt_chmaps, 8, 0, &chmap);
if (err < 0)
return err;
switch (codec->preset->id) {
case 0x10de0002:
case 0x10de0003:
case 0x10de0005:
case 0x10de0006:
chmap->channel_mask = (1U << 2) | (1U << 8);
break;
case 0x10de0007:
chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
}
return 0;
}
static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
{
struct hdmi_spec *spec;
@ -2165,6 +2202,8 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
spec->multiout.max_channels = 8;
spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
codec->patch_ops.init = nvhdmi_7x_init_8ch;
codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
/* Initialize the audio infoframe channel mask and checksum to something
* valid */