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ALSA: hda - Add expose_enum_ctl flag to snd_hda_add_vmaster_hook()

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Since it's not always safe to assume that the vmaster hook is purely the
mute-LED control, add the flag indicating whether to expose the mute-LED
enum control or not.  Currently, conexant codec sets this off for non-HP
laptops where EAPD may be used really as EAPD.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2012-03-13 07:55:10 +01:00
parent d2f344b5e0
commit f29735cbef
5 changed files with 23 additions and 10 deletions
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21
sound/pci/hda/patch_conexant.c
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@@ -71,6 +71,7 @@ struct conexant_spec {
int num_mixers;
hda_nid_t vmaster_nid;
struct hda_vmaster_mute_hook vmaster_mute;
bool vmaster_mute_led;
const struct hda_verb *init_verbs[5]; /* initialization verbs
* don't forget NULL
@@ -4346,8 +4347,10 @@ static int cx_auto_build_controls(struct hda_codec *codec)
err = snd_hda_jack_add_kctls(codec, &spec->autocfg);
if (err < 0)
return err;
if (spec->vmaster_mute.hook && spec->vmaster_mute.sw_kctl) {
err = snd_hda_add_vmaster_hook(codec, &spec->vmaster_mute);
if (spec->vmaster_mute.sw_kctl) {
spec->vmaster_mute.hook = cx_auto_vmaster_hook;
err = snd_hda_add_vmaster_hook(codec, &spec->vmaster_mute,
spec->vmaster_mute_led);
if (err < 0)
return err;
}
@@ -4476,11 +4479,17 @@ static int patch_conexant_auto(struct hda_codec *codec)
apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl);
/* add EAPD vmaster hook to all HP machines */
/* NOTE: this should be applied via fixup once when the generic
* fixup code is merged to hda_codec.c
/* Show mute-led control only on HP laptops
* This is a sort of white-list: on HP laptops, EAPD corresponds
* only to the mute-LED without actualy amp function. Meanwhile,
* others may use EAPD really as an amp switch, so it might be
* not good to expose it blindly.
*/
spec->vmaster_mute.hook = cx_auto_vmaster_hook;
switch (codec->subsystem_id >> 16) {
case 0x103c:
spec->vmaster_mute_led = 1;
break;
}
err = cx_auto_search_adcs(codec);
if (err < 0)