[ALSA] HDA codec & CA0106 - add/fix TLV support
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 23201f3..78ff457 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -29,6 +29,7 @@
#include <sound/core.h>
#include "hda_codec.h"
#include <sound/asoundef.h>
+#include <sound/tlv.h>
#include <sound/initval.h>
#include "hda_local.h"
@@ -841,6 +842,38 @@
return change;
}
+int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
+ unsigned int size, unsigned int __user *_tlv)
+{
+ struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+ hda_nid_t nid = get_amp_nid(kcontrol);
+ int dir = get_amp_direction(kcontrol);
+ u32 caps, val1, val2;
+
+ if (size < 4 * sizeof(unsigned int))
+ return -ENOMEM;
+ caps = query_amp_caps(codec, nid, dir);
+ val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
+ val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
+ val1 = ((int)val1) * ((int)val2);
+ if (caps & AC_AMPCAP_MUTE)
+ val2 |= 0x10000;
+ if ((val2 & 0x10000) == 0 && dir == HDA_OUTPUT) {
+ caps = query_amp_caps(codec, nid, HDA_INPUT);
+ if (caps & AC_AMPCAP_MUTE)
+ val2 |= 0x10000;
+ }
+ if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
+ return -EFAULT;
+ if (put_user(2 * sizeof(unsigned int), _tlv + 1))
+ return -EFAULT;
+ if (put_user(val1, _tlv + 2))
+ return -EFAULT;
+ if (put_user(val2, _tlv + 3))
+ return -EFAULT;
+ return 0;
+}
+
/* switch */
int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{