[ALSA] ASoC TLV support

Add TLV support to ASoC.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

2 files changed, 46 insertions, 34 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index bd656db..e748b00 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1213,7 +1213,6 @@ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 	memcpy(&template, _template, sizeof(template));
 	if (long_name)
 		template.name = long_name;
-	template.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
 	template.index = 0;
 
 	return snd_ctl_new1(&template, data);
@@ -1348,13 +1347,16 @@ EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_info *uinfo)
 {
-	int mask = kcontrol->private_value;
+	int max = kcontrol->private_value;
+
+	if (max == 1)
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	else
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 
-	uinfo->type =
-		mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
+	uinfo->value.integer.max = max;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
@@ -1371,15 +1373,18 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_info *uinfo)
 {
-	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int max = (kcontrol->private_value >> 16) & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
 
-	uinfo->type =
-		mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	if (max == 1)
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	else
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+
 	uinfo->count = shift == rshift ? 1 : 2;
 	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
+	uinfo->value.integer.max = max;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
@@ -1400,7 +1405,8 @@ int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
-	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int max = (kcontrol->private_value >> 16) & 0xff;
+	int mask = (1 << fls(max)) - 1;
 	int invert = (kcontrol->private_value >> 24) & 0x01;
 
 	ucontrol->value.integer.value[0] =
@@ -1410,10 +1416,10 @@ int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 			(snd_soc_read(codec, reg) >> rshift) & mask;
 	if (invert) {
 		ucontrol->value.integer.value[0] =
-			mask - ucontrol->value.integer.value[0];
+			max - ucontrol->value.integer.value[0];
 		if (shift != rshift)
 			ucontrol->value.integer.value[1] =
-				mask - ucontrol->value.integer.value[1];
+				max - ucontrol->value.integer.value[1];
 	}
 
 	return 0;
@@ -1436,25 +1442,24 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
-	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int max = (kcontrol->private_value >> 16) & 0xff;
+	int mask = (1 << fls(max)) - 1;
 	int invert = (kcontrol->private_value >> 24) & 0x01;
-	int err;
 	unsigned short val, val2, val_mask;
 
 	val = (ucontrol->value.integer.value[0] & mask);
 	if (invert)
-		val = mask - val;
+		val = max - val;
 	val_mask = mask << shift;
 	val = val << shift;
 	if (shift != rshift) {
 		val2 = (ucontrol->value.integer.value[1] & mask);
 		if (invert)
-			val2 = mask - val2;
+			val2 = max - val2;
 		val_mask |= mask << rshift;
 		val |= val2 << rshift;
 	}
-	err = snd_soc_update_bits(codec, reg, val_mask, val);
-	return err;
+	return snd_soc_update_bits(codec, reg, val_mask, val);
 }
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
 
@@ -1471,13 +1476,16 @@ EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_info *uinfo)
 {
-	int mask = (kcontrol->private_value >> 12) & 0xff;
+	int max = (kcontrol->private_value >> 12) & 0xff;
+
+	if (max == 1)
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	else
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 
-	uinfo->type =
-		mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 2;
 	uinfo->value.integer.min = 0;
-	uinfo->value.integer.max = mask;
+	uinfo->value.integer.max = max;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r);
@@ -1498,7 +1506,8 @@ int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int reg2 = (kcontrol->private_value >> 24) & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
-	int mask = (kcontrol->private_value >> 12) & 0xff;
+	int max = (kcontrol->private_value >> 12) & 0xff;
+	int mask = (1<<fls(max))-1;
 	int invert = (kcontrol->private_value >> 20) & 0x01;
 
 	ucontrol->value.integer.value[0] =
@@ -1507,9 +1516,9 @@ int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
 		(snd_soc_read(codec, reg2) >> shift) & mask;
 	if (invert) {
 		ucontrol->value.integer.value[0] =
-			mask - ucontrol->value.integer.value[0];
+			max - ucontrol->value.integer.value[0];
 		ucontrol->value.integer.value[1] =
-			mask - ucontrol->value.integer.value[1];
+			max - ucontrol->value.integer.value[1];
 	}
 
 	return 0;
@@ -1532,7 +1541,8 @@ int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int reg2 = (kcontrol->private_value >> 24) & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
-	int mask = (kcontrol->private_value >> 12) & 0xff;
+	int max = (kcontrol->private_value >> 12) & 0xff;
+	int mask = (1 << fls(max)) - 1;
 	int invert = (kcontrol->private_value >> 20) & 0x01;
 	int err;
 	unsigned short val, val2, val_mask;
@@ -1542,8 +1552,8 @@ int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
 	val2 = (ucontrol->value.integer.value[1] & mask);
 
 	if (invert) {
-		val = mask - val;
-		val2 = mask - val2;
+		val = max - val;
+		val2 = max - val2;
 	}
 
 	val = val << shift;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 16ebb60..7eb6c5c 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1018,8 +1018,9 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
-	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int max = (kcontrol->private_value >> 16) & 0xff;
 	int invert = (kcontrol->private_value >> 24) & 0x01;
+	int mask = (1 << fls(max)) - 1;
 
 	/* return the saved value if we are powered down */
 	if (widget->id == snd_soc_dapm_pga && !widget->power) {
@@ -1034,10 +1035,10 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 			(snd_soc_read(widget->codec, reg) >> rshift) & mask;
 	if (invert) {
 		ucontrol->value.integer.value[0] =
-			mask - ucontrol->value.integer.value[0];
+			max - ucontrol->value.integer.value[0];
 		if (shift != rshift)
 			ucontrol->value.integer.value[1] =
-				mask - ucontrol->value.integer.value[1];
+				max - ucontrol->value.integer.value[1];
 	}
 
 	return 0;
@@ -1060,7 +1061,8 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0x0f;
 	int rshift = (kcontrol->private_value >> 12) & 0x0f;
-	int mask = (kcontrol->private_value >> 16) & 0xff;
+	int max = (kcontrol->private_value >> 16) & 0xff;
+	int mask = (1 << fls(max)) - 1;
 	int invert = (kcontrol->private_value >> 24) & 0x01;
 	unsigned short val, val2, val_mask;
 	int ret;
@@ -1068,13 +1070,13 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	val = (ucontrol->value.integer.value[0] & mask);
 
 	if (invert)
-		val = mask - val;
+		val = max - val;
 	val_mask = mask << shift;
 	val = val << shift;
 	if (shift != rshift) {
 		val2 = (ucontrol->value.integer.value[1] & mask);
 		if (invert)
-			val2 = mask - val2;
+			val2 = max - val2;
 		val_mask |= mask << rshift;
 		val |= val2 << rshift;
 	}