From 24088a58d694ca5acc31ba67f966f60385789235 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 17 Jun 2011 16:59:21 +0200 Subject: [PATCH] ALSA: hda - Add control to suppress the dynamic pin-power for VIA Currently VIA driver controls the power-state of each pin per jack detection. But, it means that the power-state mismatch may occur when the machine doesn't give the proper jack-detection. For avoiding this problem, a new control element "Dynamic Power-Control" is provided so that user can turn on/off the pin-power control. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_via.c | 60 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 59 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 995974d0b120..8a9791ab43c0 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -153,6 +153,7 @@ struct via_spec { unsigned int hp_independent_mode_index; unsigned int smart51_enabled; unsigned int dmic_enabled; + unsigned int no_pin_power_ctl; enum VIA_HDA_CODEC codec_type; /* work to check hp jack state */ @@ -605,8 +606,12 @@ static void set_pin_power_state(struct hda_codec *codec, hda_nid_t nid, unsigned no_presence = (def_conf & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT & AC_DEFCFG_MISC_NO_PRESENCE; /* do not support pin sense */ - unsigned present = snd_hda_jack_detect(codec, nid); struct via_spec *spec = codec->spec; + unsigned present = 0; + + no_presence |= spec->no_pin_power_ctl; + if (!no_presence) + present = snd_hda_jack_detect(codec, nid); if ((spec->smart51_enabled && is_smart51_pins(spec, nid)) || ((no_presence || present) && get_defcfg_connect(def_conf) != AC_JACK_PORT_NONE)) { @@ -618,6 +623,55 @@ static void set_pin_power_state(struct hda_codec *codec, hda_nid_t nid, snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, parm); } +static int via_pin_power_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char * const texts[] = { + "Disabled", "Enabled" + }; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = 2; + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1; + strcpy(uinfo->value.enumerated.name, + texts[uinfo->value.enumerated.item]); + return 0; +} + +static int via_pin_power_ctl_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; + ucontrol->value.enumerated.item[0] = !spec->no_pin_power_ctl; + return 0; +} + +static int via_pin_power_ctl_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; + unsigned int val = !ucontrol->value.enumerated.item[0]; + + if (val == spec->no_pin_power_ctl) + return 0; + spec->no_pin_power_ctl = val; + set_widgets_power_state(codec); + return 1; +} + +static const struct snd_kcontrol_new via_pin_power_ctl_enum = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Dynamic Power-Control", + .info = via_pin_power_ctl_info, + .get = via_pin_power_ctl_get, + .put = via_pin_power_ctl_put, +}; + + /* * input MUX handling */ @@ -1480,6 +1534,10 @@ static int via_build_controls(struct hda_codec *codec) const struct snd_kcontrol_new *knew; int err, i; + if (spec->set_widgets_power_state) + if (!via_clone_control(spec, &via_pin_power_ctl_enum)) + return -ENOMEM; + for (i = 0; i < spec->num_mixers; i++) { err = snd_hda_add_new_ctls(codec, spec->mixers[i]); if (err < 0) -- 2.20.1