commit f9804e66395cff89700ef5692ac73ce6328fcecb
author Nagarjuna Paladugu <npaladug@codeaurora.org> Thu May 30 16:31:18 2019 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue Jul 09 14:05:11 2019 -0700
tree 951b4f771b0e7d2802fd1d78fdbcc219086398d1
parent 2d82b84b9170b7ab9f8c56da6bfd396924671590

hal : Fixing min volume issue

If volume gain value to be set reaches min level,
sending mute command to adsp.

Change-Id: I5dfc6b6fb608065880df5d5f4deb74d604188133

hal/audio_extn/auto_hal.c

diff --git a/hal/audio_extn/auto_hal.c b/hal/audio_extn/auto_hal.c
index f008a47..ad5e331 100644
--- a/hal/audio_extn/auto_hal.c
+++ b/hal/audio_extn/auto_hal.c
@@ -445,7 +445,7 @@
  */
 #define MIN_VOLUME_VALUE_MB -6000
 #define MAX_VOLUME_VALUE_MB 600
-
+#define STEP_VALUE_MB 100
 int audio_extn_auto_hal_set_audio_port_config(struct audio_hw_device *dev,
                         const struct audio_port_config *config)
 {
@@ -498,7 +498,10 @@
                     /* millibel = 1/100 dB = 1/1000 bel
                      * q13 = (10^(mdb/100/20))*(2^13)
                      */
-                    volume = powf(10.0, ((float)config->gain.values[0] / 2000));
+                    if(config->gain.values[0] <= (MIN_VOLUME_VALUE_MB + STEP_VALUE_MB))
+                        volume = 0.0 ;
+                    else
+                        volume = powf(10.0, ((float)config->gain.values[0] / 2000));
                     ALOGV("%s: set volume to stream: %p", __func__,
                         &out_ctxt->output->stream);
                     /* set gain if output stream is active */