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| author | Richard Fish <bigfish@asmallpond.org> | 2006-09-06 13:58:25 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-09-23 10:46:22 +0200 |
| commit | 160ea0dc6b86e2c0c4d325c06bf402bfdde7c1c7 (patch) | |
| tree | e87db8537135b9e9ab21c0f57c0796f531845802 /sound | |
| parent | [ALSA] Add dB information to es1938 driver (diff) | |
| download | linux-160ea0dc6b86e2c0c4d325c06bf402bfdde7c1c7.tar.xz linux-160ea0dc6b86e2c0c4d325c06bf402bfdde7c1c7.zip | |
[ALSA] [snd-intel-hda] enable center/LFE speaker on some laptops
This patch adds LFE mixer controls for laptops with a stac9200 and a mono
speaker pin with amplifier.
Signed-off-by: Richard Fish <bigfish@asmallpond.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 87169032be1f..bcbbe111ab95 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1223,6 +1223,66 @@ static int stac9200_auto_create_hp_ctls(struct hda_codec *codec, return 0; } +/* add playback controls for LFE output */ +static int stac9200_auto_create_lfe_ctls(struct hda_codec *codec, + struct auto_pin_cfg *cfg) +{ + struct sigmatel_spec *spec = codec->spec; + int err; + hda_nid_t lfe_pin = 0x0; + int i; + + /* + * search speaker outs and line outs for a mono speaker pin + * with an amp. If one is found, add LFE controls + * for it. + */ + for (i = 0; i < spec->autocfg.speaker_outs && lfe_pin == 0x0; i++) { + hda_nid_t pin = spec->autocfg.speaker_pins[i]; + unsigned long wcaps = get_wcaps(codec, pin); + wcaps &= (AC_WCAP_STEREO | AC_WCAP_OUT_AMP); + if (wcaps == AC_WCAP_OUT_AMP) + /* found a mono speaker with an amp, must be lfe */ + lfe_pin = pin; + } + + /* if speaker_outs is 0, then speakers may be in line_outs */ + if (lfe_pin == 0 && spec->autocfg.speaker_outs == 0) { + for (i = 0; i < spec->autocfg.line_outs && lfe_pin == 0x0; i++) { + hda_nid_t pin = spec->autocfg.line_out_pins[i]; + unsigned long cfg; + cfg = snd_hda_codec_read(codec, pin, 0, + AC_VERB_GET_CONFIG_DEFAULT, + 0x00); + if (get_defcfg_device(cfg) == AC_JACK_SPEAKER) { + unsigned long wcaps = get_wcaps(codec, pin); + wcaps &= (AC_WCAP_STEREO | AC_WCAP_OUT_AMP); + if (wcaps == AC_WCAP_OUT_AMP) + /* found a mono speaker with an amp, + must be lfe */ + lfe_pin = pin; + } + } + } + + if (lfe_pin) { + err = stac92xx_add_control(spec, STAC_CTL_WIDGET_VOL, + "LFE Playback Volume", + HDA_COMPOSE_AMP_VAL(lfe_pin, 1, 0, + HDA_OUTPUT)); + if (err < 0) + return err; + err = stac92xx_add_control(spec, STAC_CTL_WIDGET_MUTE, + "LFE Playback Switch", + HDA_COMPOSE_AMP_VAL(lfe_pin, 1, 0, + HDA_OUTPUT)); + if (err < 0) + return err; + } + + return 0; +} + static int stac9200_parse_auto_config(struct hda_codec *codec) { struct sigmatel_spec *spec = codec->spec; @@ -1237,6 +1297,9 @@ static int stac9200_parse_auto_config(struct hda_codec *codec) if ((err = stac9200_auto_create_hp_ctls(codec, &spec->autocfg)) < 0) return err; + if ((err = stac9200_auto_create_lfe_ctls(codec, &spec->autocfg)) < 0) + return err; + if (spec->autocfg.dig_out_pin) spec->multiout.dig_out_nid = 0x05; if (spec->autocfg.dig_in_pin) |