ALSA: hda - proc - add support for dynamic controls to mixer<->NID mapping

This patch adds support for dynamically created controls to proc codec file
(Control: lines).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

@@ -1523,6 +1523,11 @@ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
 	int err;
 	struct hda_nid_item *item;
 
+	if (kctl->id.subdevice & (1<<31)) {
+		if (nid == 0)
+			nid = kctl->id.subdevice & 0xffff;
+		kctl->id.subdevice = 0;
+	}
 	err = snd_ctl_add(codec->bus->card, kctl);
 	if (err < 0)
 		return err;
@@ -3160,7 +3165,7 @@ EXPORT_SYMBOL_HDA(snd_hda_check_board_codec_sid_config);
  */
 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
 {
- 	int err;
+	int err;
 
 	for (; knew->name; knew++) {
 		struct snd_kcontrol *kctl;

sound/pci/hda/hda_local.h

@@ -33,6 +33,7 @@
 /* mono volume with index (index=0,1,...) (channel=1,2) */
 #define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
+	  .subdevice = (1<<31)|(nid), \
 	  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
@@ -53,6 +54,7 @@
 /* mono mute switch with index (index=0,1,...) (channel=1,2) */
 #define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
+	  .subdevice = (1<<31)|(nid), \
 	  .info = snd_hda_mixer_amp_switch_info, \
 	  .get = snd_hda_mixer_amp_switch_get, \
 	  .put = snd_hda_mixer_amp_switch_put, \
@@ -69,6 +71,7 @@
 /* special beep mono mute switch with index (index=0,1,...) (channel=1,2) */
 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
+	  .subdevice = (1<<31)|(nid), \
 	  .info = snd_hda_mixer_amp_switch_info, \
 	  .get = snd_hda_mixer_amp_switch_get, \
 	  .put = snd_hda_mixer_amp_switch_put_beep, \

sound/pci/hda/patch_analog.c

@@ -2571,6 +2571,8 @@ static int add_control(struct ad198x_spec *spec, int type, const char *name,
 	knew->name = kstrdup(name, GFP_KERNEL);
 	if (! knew->name)
 		return -ENOMEM;
+	if (get_amp_nid_(val))
+		knew->subdevice = (1<<31)|get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }

sound/pci/hda/patch_realtek.c

@@ -4323,6 +4323,8 @@ static int add_control(struct alc_spec *spec, int type, const char *name,
 	knew->name = kstrdup(name, GFP_KERNEL);
 	if (!knew->name)
 		return -ENOMEM;
+	if (get_amp_nid_(val))
+		knew->subdevice = (1<<31)|get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }

sound/pci/hda/patch_sigmatel.c

@@ -2671,7 +2671,8 @@ static struct snd_kcontrol_new stac92xx_control_templates[] = {
 static struct snd_kcontrol_new *
 stac_control_new(struct sigmatel_spec *spec,
 		 struct snd_kcontrol_new *ktemp,
-		 const char *name)
+		 const char *name,
+		 hda_nid_t nid)
 {
 	struct snd_kcontrol_new *knew;
 
@@ -2687,6 +2688,8 @@ stac_control_new(struct sigmatel_spec *spec,
 		spec->kctls.alloced--;
 		return NULL;
 	}
+	if (nid)
+		knew->subdevice = (1<<31)|nid;
 	return knew;
 }
 
@@ -2695,7 +2698,8 @@ static int stac92xx_add_control_temp(struct sigmatel_spec *spec,
 				     int idx, const char *name,
 				     unsigned long val)
 {
-	struct snd_kcontrol_new *knew = stac_control_new(spec, ktemp, name);
+	struct snd_kcontrol_new *knew = stac_control_new(spec, ktemp, name,
+							 get_amp_nid_(val));
 	if (!knew)
 		return -ENOMEM;
 	knew->index = idx;
@@ -2766,7 +2770,7 @@ static int stac92xx_add_input_source(struct sigmatel_spec *spec)
 	if (!spec->num_adcs || imux->num_items <= 1)
 		return 0; /* no need for input source control */
 	knew = stac_control_new(spec, &stac_input_src_temp,
-				stac_input_src_temp.name);
+				stac_input_src_temp.name, 0);
 	if (!knew)
 		return -ENOMEM;
 	knew->count = spec->num_adcs;

sound/pci/hda/patch_via.c

@@ -442,6 +442,8 @@ static int via_add_control(struct via_spec *spec, int type, const char *name,
 	knew->name = kstrdup(name, GFP_KERNEL);
 	if (!knew->name)
 		return -ENOMEM;
+	if (get_amp_nid_(val))
+		knew->subdevice = (1<<31)|get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }