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@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 @@ -168,6 +168,21 @@ .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 @@ -320,6 +335,13 @@ 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 @@ -2190,6 +2190,101 @@ 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 + * @kcontrol: mixer control + * @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 + * @kcontrol: mixer control + * @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 + * @kcontrol: mixer control + * @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. * @dai: DAI * @clk_id: DAI specific clock ID