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| author | Takashi Iwai <tiwai@suse.de> | 2009-02-13 11:19:09 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-02-13 11:59:33 +0100 |
| commit | 6a05ac4afa90ac9c38fedd3f6940fe8da5d1fcf6 (patch) | |
| tree | 056f6c1e27b751035af769b83f6def4086df9ef1 | |
| parent | 9b5f12e5a4029c1cd03784754687faef6d9e54fa (diff) | |
| download | kernel_samsung_crespo-6a05ac4afa90ac9c38fedd3f6940fe8da5d1fcf6.zip kernel_samsung_crespo-6a05ac4afa90ac9c38fedd3f6940fe8da5d1fcf6.tar.gz kernel_samsung_crespo-6a05ac4afa90ac9c38fedd3f6940fe8da5d1fcf6.tar.bz2 | |
ALSA: hda - Support multiple digital outs with auto-probing
Added the support of multiple digital outputs via auto-probing for
Realtek ALC88x codecs. The multiple outputs are handled as slave
streams, so only one PCM stream (and the corresponding IEC958*
elements) is provided to control both digital outputs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/hda/patch_realtek.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index ef9b7ee..244de59 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -279,6 +279,7 @@ struct alc_spec { * dig_out_nid and hp_nid are optional */ hda_nid_t alt_dac_nid; + hda_nid_t slave_dig_outs[3]; /* optional - for auto-parsing */ int dig_out_type; /* capture */ @@ -4269,7 +4270,7 @@ static void alc880_auto_init_analog_input(struct hda_codec *codec) static int alc880_parse_auto_config(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - int err; + int i, err; static hda_nid_t alc880_ignore[] = { 0x1d, 0 }; err = snd_hda_parse_pin_def_config(codec, &spec->autocfg, @@ -4300,8 +4301,23 @@ static int alc880_parse_auto_config(struct hda_codec *codec) spec->multiout.max_channels = spec->multiout.num_dacs * 2; - if (spec->autocfg.dig_outs) - spec->multiout.dig_out_nid = ALC880_DIGOUT_NID; + /* check multiple SPDIF-out (for recent codecs) */ + for (i = 0; i < spec->autocfg.dig_outs; i++) { + hda_nid_t dig_nid; + err = snd_hda_get_connections(codec, + spec->autocfg.dig_out_pins[i], + &dig_nid, 1); + if (err < 0) + continue; + if (!i) + spec->multiout.dig_out_nid = dig_nid; + else { + spec->multiout.slave_dig_outs = spec->slave_dig_outs; + spec->slave_dig_outs[i - 1] = dig_nid; + if (i == ARRAY_SIZE(spec->slave_dig_outs) - 1) + break; + } + } if (spec->autocfg.dig_in_pin) spec->dig_in_nid = ALC880_DIGIN_NID; |