ALSA: hda - introduce HDA_SUBDEV_AMP_FLAG (ControlAmp in proc)

The purpose of this changeset is to show information about amplifier
setting in the codec proc file. Something like:

  Control: name="Front Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Front Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=2, ofs=0
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/pci/hda/hda_codec.c

@@ -1723,19 +1723,22 @@ EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
  *
  * snd_hda_ctl_add() checks the control subdev id field whether
  * #HDA_SUBDEV_NID_FLAG bit is set.  If set (and @nid is zero), the lower
- * bits value is taken as the NID to assign.
+ * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit
+ * specifies if kctl->private_value is a HDA amplifier value.
  */
 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
 		    struct snd_kcontrol *kctl)
 {
 	int err;
+	unsigned short flags = 0;
 	struct hda_nid_item *item;
 
-	if (kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) {
-		if (nid == 0)
-			nid = kctl->id.subdevice & 0xffff;
+	if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG)
+		flags |= HDA_NID_ITEM_AMP;
+	if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0)
+		nid = kctl->id.subdevice & 0xffff;
+	if (kctl->id.subdevice & 0xf0000000)
 		kctl->id.subdevice = 0;
-	}
 	err = snd_ctl_add(codec->bus->card, kctl);
 	if (err < 0)
 		return err;
@@ -1744,6 +1747,7 @@ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
 		return -ENOMEM;
 	item->kctl = kctl;
 	item->nid = nid;
+	item->flags = flags;
 	return 0;
 }
 EXPORT_SYMBOL_HDA(snd_hda_ctl_add);

sound/pci/hda/hda_local.h

@@ -31,6 +31,7 @@
  * in snd_hda_ctl_add(), so that this value won't appear in the outside.
  */
 #define HDA_SUBDEV_NID_FLAG	(1U << 31)
+#define HDA_SUBDEV_AMP_FLAG	(1U << 30)
 
 /*
  * for mixer controls
@@ -42,7 +43,7 @@
 /* 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 = HDA_SUBDEV_NID_FLAG | (nid), \
+	  .subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | (nid), \
 	  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 	  	    SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
@@ -63,7 +64,7 @@
 /* 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 = HDA_SUBDEV_NID_FLAG | (nid), \
+	  .subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | (nid), \
 	  .info = snd_hda_mixer_amp_switch_info, \
 	  .get = snd_hda_mixer_amp_switch_get, \
 	  .put = snd_hda_mixer_amp_switch_put, \
@@ -81,7 +82,7 @@
 /* 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 = HDA_SUBDEV_NID_FLAG | (nid), \
+	  .subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | (nid), \
 	  .info = snd_hda_mixer_amp_switch_info, \
 	  .get = snd_hda_mixer_amp_switch_get, \
 	  .put = snd_hda_mixer_amp_switch_put_beep, \
@@ -466,10 +467,14 @@ u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid);
 u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
 int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
 
+/* flags for hda_nid_item */
+#define HDA_NID_ITEM_AMP	(1<<0)
+
 struct hda_nid_item {
 	struct snd_kcontrol *kctl;
 	unsigned int index;
 	hda_nid_t nid;
+	unsigned short flags;
 };
 
 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,

sound/pci/hda/hda_proc.c

@@ -76,6 +76,14 @@ static void print_nid_array(struct snd_info_buffer *buffer,
 			  "  Control: name=\"%s\", index=%i, device=%i\n",
 			  kctl->id.name, kctl->id.index + item->index,
 			  kctl->id.device);
+			if (item->flags & HDA_NID_ITEM_AMP)
+				snd_iprintf(buffer,
+				  "    ControlAmp: chs=%lu, dir=%s, "
+				  "idx=%lu, ofs=%lu\n",
+				  get_amp_channels(kctl),
+				  get_amp_direction(kctl) ? "Out" : "In",
+				  get_amp_index(kctl),
+				  get_amp_offset(kctl));
 		}
 	}
 }

sound/pci/hda/patch_analog.c

@@ -832,7 +832,7 @@ static struct snd_kcontrol_new ad1986a_automute_master_mixers[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x1a,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x1a,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = ad1986a_hp_master_sw_put,
@@ -2602,7 +2602,9 @@ static int add_control(struct ad198x_spec *spec, int type, const char *name,
 	if (! knew->name)
 		return -ENOMEM;
 	if (get_amp_nid_(val))
-		knew->subdevice = HDA_SUBDEV_NID_FLAG | get_amp_nid_(val);
+		knew->subdevice = HDA_SUBDEV_NID_FLAG |
+				  HDA_SUBDEV_AMP_FLAG |
+				  get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }
@@ -3756,7 +3758,7 @@ static struct snd_kcontrol_new ad1884a_laptop_mixers[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x21,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x21,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = ad1884a_mobile_master_sw_put,
@@ -3785,7 +3787,7 @@ static struct snd_kcontrol_new ad1884a_mobile_mixers[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x21,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x21,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = ad1884a_mobile_master_sw_put,
@@ -4127,7 +4129,7 @@ static struct snd_kcontrol_new ad1984a_touchsmart_mixers[] = {
 /*	HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),*/
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x21,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x21,
 		.name = "Master Playback Switch",
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,

sound/pci/hda/patch_cirrus.c

@@ -500,6 +500,7 @@ static int add_mute(struct hda_codec *codec, const char *name, int index,
 	knew.private_value = pval;
 	snprintf(tmp, sizeof(tmp), "%s %s Switch", name, dir_sfx[dir]);
 	*kctlp = snd_ctl_new1(&knew, codec);
+	(*kctlp)->id.subdevice = HDA_SUBDEV_AMP_FLAG;
 	return snd_hda_ctl_add(codec, get_amp_nid_(pval), *kctlp);
 }
 
@@ -513,6 +514,7 @@ static int add_volume(struct hda_codec *codec, const char *name,
 	knew.private_value = pval;
 	snprintf(tmp, sizeof(tmp), "%s %s Volume", name, dir_sfx[dir]);
 	*kctlp = snd_ctl_new1(&knew, codec);
+	(*kctlp)->id.subdevice = HDA_SUBDEV_AMP_FLAG;
 	return snd_hda_ctl_add(codec, get_amp_nid_(pval), *kctlp);
 }
 

sound/pci/hda/patch_conexant.c

@@ -2178,6 +2178,7 @@ static struct snd_kcontrol_new cxt5066_mixer_master_olpc[] = {
 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 				  SNDRV_CTL_ELEM_ACCESS_TLV_READ |
 				  SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x10,
 		.info = snd_hda_mixer_amp_volume_info,
 		.get = snd_hda_mixer_amp_volume_get,
 		.put = snd_hda_mixer_amp_volume_put,

sound/pci/hda/patch_realtek.c

@@ -4414,7 +4414,9 @@ static int add_control(struct alc_spec *spec, int type, const char *name,
 	if (!knew->name)
 		return -ENOMEM;
 	if (get_amp_nid_(val))
-		knew->subdevice = HDA_SUBDEV_NID_FLAG | get_amp_nid_(val);
+		knew->subdevice = HDA_SUBDEV_NID_FLAG |
+				  HDA_SUBDEV_AMP_FLAG |
+				  get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }
@@ -10919,7 +10921,7 @@ static struct snd_kcontrol_new alc262_fujitsu_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc262_fujitsu_master_sw_put,
@@ -10960,7 +10962,7 @@ static struct snd_kcontrol_new alc262_lenovo_3000_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x1b,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x1b,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc262_lenovo_3000_master_sw_put,
@@ -12137,7 +12139,7 @@ static struct snd_kcontrol_new alc268_acer_aspire_one_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc268_acer_master_sw_put,
@@ -12153,7 +12155,7 @@ static struct snd_kcontrol_new alc268_acer_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc268_acer_master_sw_put,
@@ -12171,7 +12173,7 @@ static struct snd_kcontrol_new alc268_acer_dmic_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc268_acer_master_sw_put,
@@ -13124,7 +13126,7 @@ static struct snd_kcontrol_new alc269_quanta_fl1_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc268_acer_master_sw_put,
@@ -13145,7 +13147,7 @@ static struct snd_kcontrol_new alc269_lifebook_mixer[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Master Playback Switch",
-		.subdevice = HDA_SUBDEV_NID_FLAG | 0x14,
+		.subdevice = HDA_SUBDEV_NID_FLAG | HDA_SUBDEV_AMP_FLAG | 0x14,
 		.info = snd_hda_mixer_amp_switch_info,
 		.get = snd_hda_mixer_amp_switch_get,
 		.put = alc268_acer_master_sw_put,

sound/pci/hda/patch_sigmatel.c

@@ -2702,7 +2702,8 @@ stac_control_new(struct sigmatel_spec *spec,
 		return NULL;
 	}
 	if (nid)
-		knew->subdevice = HDA_SUBDEV_NID_FLAG | nid;
+		knew->subdevice = HDA_SUBDEV_NID_FLAG |
+				  HDA_SUBDEV_AMP_FLAG | nid;
 	return knew;
 }
 

sound/pci/hda/patch_via.c

@@ -458,7 +458,9 @@ static int via_add_control(struct via_spec *spec, int type, const char *name,
 	if (!knew->name)
 		return -ENOMEM;
 	if (get_amp_nid_(val))
-		knew->subdevice = HDA_SUBDEV_NID_FLAG | get_amp_nid_(val);
+		knew->subdevice = HDA_SUBDEV_NID_FLAG |
+				  HDA_SUBDEV_AMP_FLAG |
+				  get_amp_nid_(val);
 	knew->private_value = val;
 	return 0;
 }