[ALSA] snd-emu10k1: Implement dB gain infomation.
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index dfba002..00fc904 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -35,6 +35,7 @@
#include <linux/mutex.h>
#include <sound/core.h>
+#include <sound/tlv.h>
#include <sound/emu10k1.h>
#if 0 /* for testing purposes - digital out -> capture */
@@ -290,6 +291,9 @@
0x7fffffff,
};
+/* EMU10k1/EMU10k2 DSP control db gain */
+static DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1);
+
static const u32 onoff_table[2] = {
0x00000000, 0x00000001
};
@@ -755,6 +759,11 @@
knew.device = gctl->id.device;
knew.subdevice = gctl->id.subdevice;
knew.info = snd_emu10k1_gpr_ctl_info;
+ if (gctl->tlv.p) {
+ knew.tlv.p = gctl->tlv.p;
+ knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ;
+ }
knew.get = snd_emu10k1_gpr_ctl_get;
knew.put = snd_emu10k1_gpr_ctl_put;
memset(nctl, 0, sizeof(*nctl));
@@ -1013,6 +1022,7 @@
ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
ctl->min = 0;
ctl->max = 100;
+ ctl->tlv.p = snd_emu10k1_db_scale1;
ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100;
}
@@ -1027,6 +1037,7 @@
ctl->gpr[1] = gpr + 1; ctl->value[1] = defval;
ctl->min = 0;
ctl->max = 100;
+ ctl->tlv.p = snd_emu10k1_db_scale1;
ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100;
}