2011/5/27 alex dot baldacchino dot alsasub at gmail dot com alex.baldacchino.alsasub@gmail.com:
Must these controls be always coupled? Is it a specification constraint? What if via_hp_build() didn't execute
knew = via_clone_control(spec, &via_hp_mixer[1]);
when side_mute_status() returned '0' ?
If you disabled "Front Audio Panel" in BIOS, vt1718s_auto_create_hp_ctls() won't build any controls related to HP
Given actual implementation, those should be at least compatible to some extent; in case there were differences between nids in different 'flavours' of vt1718s ( for the sake of side_mute_channel(struct via_spec *spec) ), it should be possible to check spec->codec->vendor_id within the switch statement when spec->codec_type is VT1718S - the problem is finding the right nid
The last part is interesting. If vt2020 works the same way, the 8-channel setup should disallow the "Independent HP" function, that is it should be automatically turned off and 0x28 should be either muted, or used as a 'duplicate' for 0x0c (same sound of blue jack) or 0x08 (same sound as rear green jack, as in 'redirected audio' ). If I'm not misunderstanding everything, of course.
static const struct hda_pcm_stream vt1718S_pcm_analog_playback = { .substreams = 2, .channels_min = 2, .channels_max = 10, .nid = 0x8, /* NID to query formats and rates */
This look like vt1718s support 10 channels and 10 channels allow independent HP and surround71 at the same time
BTW, 0x2a is connected to (gets input from) 0x09, which is labeled 'Surround Playback Volume' and is also an input for 0x25 ('Surround Playback Switch', black jack, rear speaker according to manual) throughout 0x19; 0x27 (missing gray jack) would be connected to 0x0b throughout 0x1a...
In alsa,
when independent HP is on,
The HP jack is supposed to connected to [Audio Output] which is not used by the rear panel jacks (i.e. 0x25) and application has to use sudevice 1
you can use aplay -Dhw:0,0,1 stereo.wav
Tested: it works. I can get different streams out of rear (front playback) and front (hp) line out jacks (used mplayer on the 'default' rear channel(s) and aplay as above on the front panel)
so you can check whether 0xb can be used instead of 0xc for headphone
static int via_independent_hp_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); struct via_spec *spec = codec->spec; hda_nid_t nid = kcontrol->private_value; unsigned int pinsel = ucontrol->value.enumerated.item[0]; /* Get Independent Mode index of headphone pin widget */ spec->hp_independent_mode = spec->hp_independent_mode_index == pinsel ? 1 : 0; if (spec->codec_type == VT1718S) snd_hda_codec_write(codec, nid, 0, - AC_VERB_SET_CONNECT_SEL, pinsel ? 2 : 0); + AC_VERB_SET_CONNECT_SEL, pinsel ? + spec->hp_independent_mode_index : 0);
static int vt1718S_auto_create_hp_ctls(struct via_spec *spec, hda_nid_t pin) { int err;
if (!pin) return 0; + if (spec->autocfg.line_outs == 4) { spec->multiout.hp_nid = 0xc; /* AOW4 */ + spec->hp_independent_mode_index = 2; + } + else { + spec->multiout.hp_nid = 0xb; spec->hp_independent_mode_index = 1; +}
static const struct hda_verb vt1718S_volume_init_verbs[] = {
- {0x34, AC_VERB_SET_CONNECT_SEL, 0x2}, + {0x34, AC_VERB_SET_CONNECT_SEL, 0x0}, {0x35, AC_VERB_SET_CONNECT_SEL, 0x1},
I haven't got an 8-channel system to test it; according to the manual, line in should be used to create an 8 channel setup. As I understand it, line-in (blue jack) should be a replacement for the gray jack when retasked.
struct via_spec {
... /* channel model */ const struct hda_channel_mode *channel_mode; int num_channel_mode; int const_channel_count; int ext_channel_count;
/* * channel mode setting */ static int via_ch_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); struct via_spec *spec = codec->spec; return snd_hda_ch_mode_info(codec, uinfo, spec->channel_mode, spec->num_channel_mode); }
static int via_ch_mode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); struct via_spec *spec = codec->spec; return snd_hda_ch_mode_get(codec, ucontrol, spec->channel_mode, spec->num_channel_mode, spec->ext_channel_count); }
static int via_ch_mode_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); struct via_spec *spec = codec->spec; int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode, spec->num_channel_mode, &spec->ext_channel_count); if (err >= 0 && !spec->const_channel_count) { spec->multiout.max_channels = spec->ext_channel_count; } activate_ctl(spec->codec, "Side Playback Volume", spec->multiout.max_channels == 8); activate_ctl(spec->codec, "Side Playback Switch", spec->multiout.max_channels == 8); return err; }
static const struct hda_verb vt1718S_6ch_init[] = { { 0x2a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN }, { } /* end */ };
static const struct hda_verb vt1718S_8ch_init[] = { { 0x21, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)}, { 0x2a, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT }, { 0x2a, AC_VERB_SET_CONNECT_SEL, 0x01 }, { } /* end */ };
static const struct hda_channel_mode vt1718S_modes[2] = { { 6, vt1718S_6ch_init }, { 8, vt1718S_8ch_init }, };
static const struct snd_kcontrol_new vt1718S_chmode_mixer[] = { { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Channel Mode", .info = via_ch_mode_info, .get = via_ch_mode_get, .put = via_ch_mode_put, }, { } };
/* add playback controls from the parsed DAC table */ static int vt1718S_auto_create_multi_out_ctls(struct via_spec *spec, const struct auto_pin_cfg *cfg) {
... if (spec->autocfg.line_outs == 3) { /* and 0x2a can be retask as output pin */ nid_vol = 0xc; nid_mute = 0x2a; err = via_add_control( spec, VIA_CTL_WIDGET_VOL, "Side Playback Volume", HDA_COMPOSE_AMP_VAL(nid_vol, 3, 0, HDA_OUTPUT)); if (err < 0) return err; err = via_add_control( spec, VIA_CTL_WIDGET_MUTE, "Side Playback Switch", HDA_COMPOSE_AMP_VAL(nid_mute, 3, 0, HDA_OUTPUT)); if (err < 0) return err;
spec->private_dac_nids[AUTO_SEQ_SIDE] = nid_vol; spec->const_channel_count = 6; spec->channel_mode = vt1718S_modes; spec->num_channel_mode = ARRAY_SIZE(vt1718S_modes); spec->mixers[spec->num_mixers] = vt1718S_chmode_mixer; spec->num_mixers++; } }