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authorTakashi Iwai <tiwai@suse.de>2006-08-23 07:07:19 -0400
committerJaroslav Kysela <perex@suse.cz>2006-09-23 04:43:19 -0400
commitfb567a8e4f077b7b084c0558706339c35a4fb186 (patch)
tree63bfffca736bb7992cee1a566478fa7d967a3608 /sound
parenta0aef8edfc9d6d682dba557fe42599297cbc329a (diff)
[ALSA] Add dB scale information to dummy driver
Added the dB scale information to dummy driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound')
-rw-r--r--sound/drivers/dummy.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 73b16134a43..42001efa9f3 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -29,6 +29,7 @@
29#include <linux/moduleparam.h> 29#include <linux/moduleparam.h>
30#include <sound/core.h> 30#include <sound/core.h>
31#include <sound/control.h> 31#include <sound/control.h>
32#include <sound/tlv.h>
32#include <sound/pcm.h> 33#include <sound/pcm.h>
33#include <sound/rawmidi.h> 34#include <sound/rawmidi.h>
34#include <sound/initval.h> 35#include <sound/initval.h>
@@ -443,10 +444,13 @@ static int __init snd_card_dummy_pcm(struct snd_dummy *dummy, int device, int su
443} 444}
444 445
445#define DUMMY_VOLUME(xname, xindex, addr) \ 446#define DUMMY_VOLUME(xname, xindex, addr) \
446{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ 447{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
448 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
449 .name = xname, .index = xindex, \
447 .info = snd_dummy_volume_info, \ 450 .info = snd_dummy_volume_info, \
448 .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \ 451 .get = snd_dummy_volume_get, .put = snd_dummy_volume_put, \
449 .private_value = addr } 452 .private_value = addr, \
453 .tlv = { .p = db_scale_dummy } }
450 454
451static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol, 455static int snd_dummy_volume_info(struct snd_kcontrol *kcontrol,
452 struct snd_ctl_elem_info *uinfo) 456 struct snd_ctl_elem_info *uinfo)
@@ -497,6 +501,8 @@ static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol,
497 return change; 501 return change;
498} 502}
499 503
504static DECLARE_TLV_DB_SCALE(db_scale_dummy, -4500, 30, 0);
505
500#define DUMMY_CAPSRC(xname, xindex, addr) \ 506#define DUMMY_CAPSRC(xname, xindex, addr) \
501{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ 507{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
502 .info = snd_dummy_capsrc_info, \ 508 .info = snd_dummy_capsrc_info, \