Merge branch 'test/hda-vol-ofs' into next/hda

sound/pci/hda/hda_codec.c

@@ -1119,6 +1119,7 @@ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
 	u16 nid = get_amp_nid(kcontrol);
 	u8 chs = get_amp_channels(kcontrol);
 	int dir = get_amp_direction(kcontrol);
+	unsigned int ofs = get_amp_offset(kcontrol);
 	u32 caps;
 
 	caps = query_amp_caps(codec, nid, dir);
@@ -1130,6 +1131,8 @@ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
 		       kcontrol->id.name);
 		return -EINVAL;
 	}
+	if (ofs < caps)
+		caps -= ofs;
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = chs == 3 ? 2 : 1;
 	uinfo->value.integer.min = 0;
@@ -1138,6 +1141,32 @@ int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
 }
 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_info);
 
+
+static inline unsigned int
+read_amp_value(struct hda_codec *codec, hda_nid_t nid,
+	       int ch, int dir, int idx, unsigned int ofs)
+{
+	unsigned int val;
+	val = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
+	val &= HDA_AMP_VOLMASK;
+	if (val >= ofs)
+		val -= ofs;
+	else
+		val = 0;
+	return val;
+}
+
+static inline int
+update_amp_value(struct hda_codec *codec, hda_nid_t nid,
+		 int ch, int dir, int idx, unsigned int ofs,
+		 unsigned int val)
+{
+	if (val > 0)
+		val += ofs;
+	return snd_hda_codec_amp_update(codec, nid, ch, dir, idx,
+					HDA_AMP_VOLMASK, val);
+}
+
 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
 				 struct snd_ctl_elem_value *ucontrol)
 {
@@ -1146,14 +1175,13 @@ int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
 	int chs = get_amp_channels(kcontrol);
 	int dir = get_amp_direction(kcontrol);
 	int idx = get_amp_index(kcontrol);
+	unsigned int ofs = get_amp_offset(kcontrol);
 	long *valp = ucontrol->value.integer.value;
 
 	if (chs & 1)
-		*valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
-			& HDA_AMP_VOLMASK;
+		*valp++ = read_amp_value(codec, nid, 0, dir, idx, ofs);
 	if (chs & 2)
-		*valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
-			& HDA_AMP_VOLMASK;
+		*valp = read_amp_value(codec, nid, 1, dir, idx, ofs);
 	return 0;
 }
 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get);
@@ -1166,18 +1194,17 @@ int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
 	int chs = get_amp_channels(kcontrol);
 	int dir = get_amp_direction(kcontrol);
 	int idx = get_amp_index(kcontrol);
+	unsigned int ofs = get_amp_offset(kcontrol);
 	long *valp = ucontrol->value.integer.value;
 	int change = 0;
 
 	snd_hda_power_up(codec);
 	if (chs & 1) {
-		change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
-						  0x7f, *valp);
+		change = update_amp_value(codec, nid, 0, dir, idx, ofs, *valp);
 		valp++;
 	}
 	if (chs & 2)
-		change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
-						   0x7f, *valp);
+		change |= update_amp_value(codec, nid, 1, dir, idx, ofs, *valp);
 	snd_hda_power_down(codec);
 	return change;
 }
@@ -1189,6 +1216,7 @@ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	hda_nid_t nid = get_amp_nid(kcontrol);
 	int dir = get_amp_direction(kcontrol);
+	unsigned int ofs = get_amp_offset(kcontrol);
 	u32 caps, val1, val2;
 
 	if (size < 4 * sizeof(unsigned int))
@@ -1197,6 +1225,7 @@ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 	val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
 	val2 = (val2 + 1) * 25;
 	val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
+	val1 += ofs;
 	val1 = ((int)val1) * ((int)val2);
 	if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
 		return -EFAULT;

sound/pci/hda/hda_local.h

@@ -26,8 +26,10 @@
 /*
  * for mixer controls
  */
+#define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)		\
+	((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
 #define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
-	((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19))
+	HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
 /* 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,  \
@@ -458,6 +460,7 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
 #define get_amp_channels(kc)	(((kc)->private_value >> 16) & 0x3)
 #define get_amp_direction(kc)	(((kc)->private_value >> 18) & 0x1)
 #define get_amp_index(kc)	(((kc)->private_value >> 19) & 0xf)
+#define get_amp_offset(kc)	(((kc)->private_value >> 23) & 0x3f)
 
 /*
  * CEA Short Audio Descriptor data

sound/pci/hda/patch_sigmatel.c

@@ -166,6 +166,7 @@ struct sigmatel_spec {
 	unsigned int alt_switch: 1;
 	unsigned int hp_detect: 1;
 	unsigned int spdif_mute: 1;
+	unsigned int check_volume_offset:1;
 
 	/* gpio lines */
 	unsigned int eapd_mask;
@@ -202,6 +203,8 @@ struct sigmatel_spec {
 	hda_nid_t hp_dacs[5];
 	hda_nid_t speaker_dacs[5];
 
+	int volume_offset;
+
 	/* capture */
 	hda_nid_t *adc_nids;
 	unsigned int num_adcs;
@@ -1293,6 +1296,8 @@ static int stac92xx_build_controls(struct hda_codec *codec)
 		unsigned int vmaster_tlv[4];
 		snd_hda_set_vmaster_tlv(codec, spec->multiout.dac_nids[0],
 					HDA_OUTPUT, vmaster_tlv);
+		/* correct volume offset */
+		vmaster_tlv[2] += vmaster_tlv[3] * spec->volume_offset;
 		err = snd_hda_add_vmaster(codec, "Master Playback Volume",
 					  vmaster_tlv, slave_vols);
 		if (err < 0)
@@ -2976,14 +2981,34 @@ static int stac92xx_auto_fill_dac_nids(struct hda_codec *codec)
 }
 
 /* create volume control/switch for the given prefx type */
-static int create_controls(struct sigmatel_spec *spec, const char *pfx, hda_nid_t nid, int chs)
+static int create_controls(struct hda_codec *codec, const char *pfx,
+			   hda_nid_t nid, int chs)
 {
+	struct sigmatel_spec *spec = codec->spec;
 	char name[32];
 	int err;
 
+	if (!spec->check_volume_offset) {
+		unsigned int caps, step, nums, db_scale;
+		caps = query_amp_caps(codec, nid, HDA_OUTPUT);
+		step = (caps & AC_AMPCAP_STEP_SIZE) >>
+			AC_AMPCAP_STEP_SIZE_SHIFT;
+		step = (step + 1) * 25; /* in .01dB unit */
+		nums = (caps & AC_AMPCAP_NUM_STEPS) >>
+			AC_AMPCAP_NUM_STEPS_SHIFT;
+		db_scale = nums * step;
+		/* if dB scale is over -64dB, and finer enough,
+		 * let's reduce it to half
+		 */
+		if (db_scale > 6400 && nums >= 0x1f)
+			spec->volume_offset = nums / 2;
+		spec->check_volume_offset = 1;
+	}
+
 	sprintf(name, "%s Playback Volume", pfx);
 	err = stac92xx_add_control(spec, STAC_CTL_WIDGET_VOL, name,
-				   HDA_COMPOSE_AMP_VAL(nid, chs, 0, HDA_OUTPUT));
+		HDA_COMPOSE_AMP_VAL_OFS(nid, chs, 0, HDA_OUTPUT,
+					spec->volume_offset));
 	if (err < 0)
 		return err;
 	sprintf(name, "%s Playback Switch", pfx);
@@ -3049,10 +3074,10 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec,
 		nid = spec->multiout.dac_nids[i];
 		if (i == 2) {
 			/* Center/LFE */
-			err = create_controls(spec, "Center", nid, 1);
+			err = create_controls(codec, "Center", nid, 1);
 			if (err < 0)
 				return err;
-			err = create_controls(spec, "LFE", nid, 2);
+			err = create_controls(codec, "LFE", nid, 2);
 			if (err < 0)
 				return err;
 
@@ -3080,7 +3105,7 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec,
 					break;
 				}
 			}
-			err = create_controls(spec, name, nid, 3);
+			err = create_controls(codec, name, nid, 3);
 			if (err < 0)
 				return err;
 		}
@@ -3135,7 +3160,7 @@ static int stac92xx_auto_create_hp_ctls(struct hda_codec *codec,
 		nid = spec->hp_dacs[i];
 		if (!nid)
 			continue;
-		err = create_controls(spec, pfxs[nums++], nid, 3);
+		err = create_controls(codec, pfxs[nums++], nid, 3);
 		if (err < 0)
 			return err;
 	}
@@ -3149,7 +3174,7 @@ static int stac92xx_auto_create_hp_ctls(struct hda_codec *codec,
 		nid = spec->speaker_dacs[i];
 		if (!nid)
 			continue;
-		err = create_controls(spec, pfxs[nums++], nid, 3);
+		err = create_controls(codec, pfxs[nums++], nid, 3);
 		if (err < 0)
 			return err;
 	}
@@ -3725,7 +3750,7 @@ static int stac9200_auto_create_lfe_ctls(struct hda_codec *codec,
 	}
 
 	if (lfe_pin) {
-		err = create_controls(spec, "LFE", lfe_pin, 1);
+		err = create_controls(codec, "LFE", lfe_pin, 1);
 		if (err < 0)
 			return err;
 	}