A series of SNDRV_CTL_TLVO_XXX macro was introduced for position offset
of TLV data. This commit applies a code optimization.
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
src/pcm/pcm_softvol.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/src/pcm/pcm_softvol.c b/src/pcm/pcm_softvol.c
index 0eaeacef..f08208f8 100644
--- a/src/pcm/pcm_softvol.c
+++ b/src/pcm/pcm_softvol.c
@@ -31,6 +31,8 @@
#include "pcm_local.h"
#include "pcm_plugin.h"
+#include <sound/tlv.h>
+
#ifndef PIC
/* entry for static linking */
const char *_snd_module_pcm_softvol = "";
@@ -708,10 +710,11 @@ static void snd_pcm_softvol_dump(snd_pcm_t *pcm, snd_output_t *out)
static int add_tlv_info(snd_pcm_softvol_t *svol, snd_ctl_elem_info_t *cinfo)
{
unsigned int tlv[4];
- tlv[0] = SND_CTL_TLVT_DB_SCALE;
- tlv[1] = 2 * sizeof(int);
- tlv[2] = (int)(svol->min_dB * 100);
- tlv[3] = (int)((svol->max_dB - svol->min_dB) * 100 / svol->max_val);
+ tlv[SNDRV_CTL_TLVO_TYPE] = SND_CTL_TLVT_DB_SCALE;
+ tlv[SNDRV_CTL_TLVO_LEN] = 2 * sizeof(int);
+ tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] = (int)(svol->min_dB * 100);
+ tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] =
+ (int)((svol->max_dB - svol->min_dB) * 100 / svol->max_val);
return snd_ctl_elem_tlv_write(svol->ctl, &cinfo->id, tlv);
}
--
2.14.1
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