apatard | 11 May 18:23 2010

[patch 3/6] asoc: Add SOC_DOUBLE_R_SX_TLV control

This patch is adding a new control which has the following capabilities:
- tlv
- variable data size (for instance, 7 ou 8 bit)
- double mixer

Signed-off-by: Arnaud Patard <apatard <at> mandriva.com>
---
 include/sound/soc.h  |   22 	22 +	0 -	0 !
 sound/soc/soc-core.c |   95 	95 +	0 -	0 !
 2 files changed, 117 insertions(+)

Index: linux-2.6.33/include/sound/soc.h
===================================================================
--- linux-2.6.33.orig/include/sound/soc.h	2010-05-11 17:38:48.933650354 +0200
+++ linux-2.6.33/include/sound/soc.h	2010-05-11 17:57:31.369711347 +0200
 <at>  <at>  -168,6 +168,21  <at>  <at> 
 	.get = xhandler_get, .put = xhandler_put, \
 	.private_value = (unsigned long)&xenum }

+#define SOC_DOUBLE_R_SX_TLV(xname, xreg_left, xreg_right, xshift,\
+		xmin, xmax, tlv_array) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+		  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+	.tlv.p = (tlv_array), \
+	.info = snd_soc_info_volsw_2r_sx, \
+	.get = snd_soc_get_volsw_2r_sx, \
+	.put = snd_soc_put_volsw_2r_sx, \
+	.private_value = (unsigned long)&(struct soc_mixer_control) \
+		{.reg = xreg_left, \
+		 .rreg = xreg_right, .shift = xshift, \
+		 .min = xmin, .max = xmax} }
+
+
 /*
  * Simplified versions of above macros, declaring a struct and calculating
  * ARRAY_SIZE internally
 <at>  <at>  -320,6 +335,13  <at>  <at>  int snd_soc_get_volsw_s8(struct snd_kcon
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
+int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_info *uinfo);
+int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol);
+int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol);
+

 /**
  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
Index: linux-2.6.33/sound/soc/soc-core.c
===================================================================
--- linux-2.6.33.orig/sound/soc/soc-core.c	2010-05-11 17:38:48.873649896 +0200
+++ linux-2.6.33/sound/soc/soc-core.c	2010-05-11 17:56:29.737650647 +0200
 <at>  <at>  -2190,6 +2190,101  <at>  <at>  int snd_soc_put_volsw_s8(struct snd_kcon
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);

 /**
+ * snd_soc_info_volsw_2r_sx - double with tlv and variable data size
+ *  mixer info callback
+ *  <at> kcontrol: mixer control
+ *  <at> uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_info *uinfo)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	int max = mc->max;
+	int min = mc->min;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = max-min;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx);
+
+/**
+ * snd_soc_get_volsw_2r_sx - double with tlv and variable data size
+ *  mixer get callback
+ *  <at> kcontrol: mixer control
+ *  <at> uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	unsigned int mask = (1<<mc->shift)-1;
+	int min = mc->min;
+	int val = snd_soc_read(codec, mc->reg) & mask;
+	int valr = snd_soc_read(codec, mc->rreg) & mask;
+
+	ucontrol->value.integer.value[0] = ((val & 0xff)-min);
+	ucontrol->value.integer.value[1] = ((valr & 0xff)-min);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx);
+
+/**
+ * snd_soc_put_volsw_2r_sx - double with tlv and variable data size
+ *  mixer put callback
+ *  <at> kcontrol: mixer control
+ *  <at> uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	unsigned int mask = (1<<mc->shift)-1;
+	int min = mc->min;
+	int ret;
+	unsigned int val, valr, oval, ovalr;
+
+	val = ((ucontrol->value.integer.value[0]+min) & 0xff);
+	val &= mask;
+	valr = ((ucontrol->value.integer.value[1]+min) & 0xff);
+	valr &= mask;
+
+	oval = snd_soc_read(codec, mc->reg) & mask;
+	ovalr = snd_soc_read(codec, mc->rreg) & mask;
+
+	ret = 0;
+	if (oval != val) {
+		ret = snd_soc_write(codec, mc->reg, val);
+		if (ret < 0)
+			return 0;
+		ret = 1;
+	}
+	if (ovalr != valr) {
+		ret = snd_soc_write(codec, mc->rreg, valr);
+		if (ret < 0)
+			return 0;
+		ret = 1;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx);
+
+/**
  * snd_soc_dai_set_sysclk - configure DAI system or master clock.
  *  <at> dai: DAI
  *  <at> clk_id: DAI specific clock ID

Gmane