From 41caed926d46776daa37098ab8c4cf87df2f10ca Mon Sep 17 00:00:00 2001
From: millerliang <millerliang@google.com>
Date: Sat, 24 Aug 2024 08:36:55 +0000
Subject: [PATCH] audio: fix the noise of raw-playback in 16kB page mode

To fix the noise of raw-playback in 16KB page mode,
we change to use non-mmaped mode.

Bug: 355285548
Flag: EXEMPT : bugfix
Test: Local test, ABTD
Change-Id: Ie5acab613906c1fd0f1de285ca13654421b7870b
---
 audio/akita/config/audio_platform_configuration.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/audio/akita/config/audio_platform_configuration.xml b/audio/akita/config/audio_platform_configuration.xml
index ceebcf3..7817345 100644
--- a/audio/akita/config/audio_platform_configuration.xml
+++ b/audio/akita/config/audio_platform_configuration.xml
@@ -173,8 +173,8 @@
     </input_backend_cfg_mic_mapping>
 
     <usecase_attr>
-        <!-- for output with AUDIO_OUTPUT_FLAG_RAW, 32 periods * 64 frames(around 1.3ms) * 2ch * 4(s32) = 16384 bytes -->
-        <usecase id="UC_RAW_PLAYBACK" dev1="23" dyn_path="true" dsp_vol="false" mmap="true" period="64" period_num="32"/>
+	    <!-- for output with AUDIO_OUTPUT_FLAG_RAW, 40 periods * 48 frames/period * 2ch * 4(s32) = 15360 bytes -->
+        <usecase id="UC_RAW_PLAYBACK" dev1="23" dyn_path="true" dsp_vol="false" mmap="false" period="48" period_num="40"/>
         <!-- for output with AUDIO_OUTPUT_FLAG_PRIMARY|AUDIO_OUTPUT_FLAG_FAST, 4 * 10ms buffer -->
         <usecase id="UC_LOW_LATENCY_PLAYBACK" dev1="1" dyn_path="true" dsp_vol="false" mmap="false" period="10" period_num="4"/>
         <!-- for output with AUDIO_OUTPUT_FLAG_MMAP_NOIRQ, 40 periods * 48 frames/period(=1ms w/ 48k sample rate) * 2ch *4(float) = 15360 bytes -->