ALSA: hda - Add digital beep playback switch for STAC/IDT codecs
The digital beep widget may have no mute control, and always enabling the beep is ofen pretty annoying, especially on laptops. This patch adds a mixer control "PC Beep Playback Switch" when there is no mixer amp mute is found, and controls it on software. Reference: Novell bnc#444572 https://bugzilla.novell.com/show_bug.cgi?id=444572 Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -37,6 +37,9 @@ static void snd_hda_generate_beep(struct work_struct *work)
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container_of(work, struct hda_beep, beep_work);
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struct hda_codec *codec = beep->codec;
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if (!beep->enabled)
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return;
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/* generate tone */
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snd_hda_codec_write_cache(codec, beep->nid, 0,
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AC_VERB_SET_BEEP_CONTROL, beep->tone);
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@ -115,6 +118,7 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
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beep->nid = nid;
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beep->dev = input_dev;
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beep->codec = codec;
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beep->enabled = 1;
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codec->beep = beep;
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INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
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@ -31,6 +31,7 @@ struct hda_beep {
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char phys[32];
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int tone;
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int nid;
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int enabled;
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struct work_struct beep_work; /* scheduled task for beep event */
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};
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@ -2587,8 +2587,10 @@ static struct snd_kcontrol_new stac92xx_control_templates[] = {
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};
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/* add dynamic controls */
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static int stac92xx_add_control_idx(struct sigmatel_spec *spec, int type,
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int idx, const char *name, unsigned long val)
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static int stac92xx_add_control_temp(struct sigmatel_spec *spec,
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struct snd_kcontrol_new *ktemp,
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int idx, const char *name,
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unsigned long val)
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{
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struct snd_kcontrol_new *knew;
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@ -2607,20 +2609,29 @@ static int stac92xx_add_control_idx(struct sigmatel_spec *spec, int type,
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}
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knew = &spec->kctl_alloc[spec->num_kctl_used];
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*knew = stac92xx_control_templates[type];
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*knew = *ktemp;
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knew->index = idx;
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knew->name = kstrdup(name, GFP_KERNEL);
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if (! knew->name)
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if (!knew->name)
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return -ENOMEM;
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knew->private_value = val;
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spec->num_kctl_used++;
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return 0;
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}
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static inline int stac92xx_add_control_idx(struct sigmatel_spec *spec,
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int type, int idx, const char *name,
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unsigned long val)
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{
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return stac92xx_add_control_temp(spec,
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&stac92xx_control_templates[type],
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idx, name, val);
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}
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/* add dynamic controls */
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static int stac92xx_add_control(struct sigmatel_spec *spec, int type,
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const char *name, unsigned long val)
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static inline int stac92xx_add_control(struct sigmatel_spec *spec, int type,
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const char *name, unsigned long val)
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{
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return stac92xx_add_control_idx(spec, type, 0, name, val);
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}
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@ -3062,6 +3073,43 @@ static int stac92xx_auto_create_beep_ctls(struct hda_codec *codec,
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return 0;
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}
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#ifdef CONFIG_SND_HDA_INPUT_BEEP
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#define stac92xx_dig_beep_switch_info snd_ctl_boolean_mono_info
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static int stac92xx_dig_beep_switch_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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ucontrol->value.integer.value[0] = codec->beep->enabled;
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return 0;
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}
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static int stac92xx_dig_beep_switch_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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int enabled = !!ucontrol->value.integer.value[0];
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if (codec->beep->enabled != enabled) {
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codec->beep->enabled = enabled;
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return 1;
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}
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return 0;
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}
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static struct snd_kcontrol_new stac92xx_dig_beep_ctrl = {
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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.info = stac92xx_dig_beep_switch_info,
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.get = stac92xx_dig_beep_switch_get,
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.put = stac92xx_dig_beep_switch_put,
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};
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static int stac92xx_beep_switch_ctl(struct hda_codec *codec)
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{
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return stac92xx_add_control_temp(codec->spec, &stac92xx_dig_beep_ctrl,
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0, "PC Beep Playback Switch", 0);
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}
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#endif
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static int stac92xx_auto_create_mux_input_ctls(struct hda_codec *codec)
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{
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struct sigmatel_spec *spec = codec->spec;
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@ -3368,6 +3416,7 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
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#ifdef CONFIG_SND_HDA_INPUT_BEEP
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if (spec->digbeep_nid > 0) {
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hda_nid_t nid = spec->digbeep_nid;
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unsigned int caps;
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err = stac92xx_auto_create_beep_ctls(codec, nid);
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if (err < 0)
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@ -3375,6 +3424,14 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
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err = snd_hda_attach_beep_device(codec, nid);
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if (err < 0)
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return err;
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/* if no beep switch is available, make its own one */
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caps = query_amp_caps(codec, nid, HDA_OUTPUT);
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if (codec->beep &&
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!((caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT)) {
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err = stac92xx_beep_switch_ctl(codec);
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if (err < 0)
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return err;
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}
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}
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#endif
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