diff --git a/configs/msmnile/msmnile.mk b/configs/msmnile/msmnile.mk
index f89e498..4d4b786 100644
--- a/configs/msmnile/msmnile.mk
+++ b/configs/msmnile/msmnile.mk
@@ -67,6 +67,7 @@
 AUDIO_FEATURE_ENABLED_DLKM := true
 AUDIO_FEATURE_ENABLED_USB_BURST_MODE := true
 AUDIO_FEATURE_ENABLED_SVA_MULTI_STAGE := true
+AUDIO_FEATURE_ENABLED_BATTERY_LISTENER := true
 ##AUDIO_FEATURE_FLAGS
 
 ifneq ($(strip $(TARGET_USES_QSSI)), true)
diff --git a/configs/sdm660/audio_platform_info.xml b/configs/sdm660/audio_platform_info.xml
index 5d905fb..32b7b1b 100755
--- a/configs/sdm660/audio_platform_info.xml
+++ b/configs/sdm660/audio_platform_info.xml
@@ -198,5 +198,165 @@
         <device name="SND_DEVICE_OUT_VOICE_SPEAKER_AND_VOICE_HEADPHONES" backend="speaker-and-headphones" interface="INT4_MI2S_RX-and-INT0_MI2S_RX"/>
         <device name="SND_DEVICE_OUT_VOICE_SPEAKER_AND_VOICE_ANC_HEADSET" backend="speaker-and-headphones" interface="INT4_MI2S_RX-and-INT0_MI2S_RX"/>
         </backend_names>
+    <!-- below values are for ref purpose to OEM, doesn't contain actual hardware info on MTP -->
+    <microphone_characteristics>
+        <microphone valid_mask="31" device_id="builtin_mic_1" type="AUDIO_DEVICE_IN_BUILTIN_MIC" address="bottom" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="0" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="93"
+            frequencies="100.00 106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00 20000.00"
+            responses="-0.78 -0.71 -0.64 -0.60 -0.55 -0.50 -0.47 -0.42 -0.39 -0.36 -0.34 -0.33 -0.32 -0.29 -0.28 -0.28 -0.27 -0.25 -0.25 -0.24 -0.23 -0.23 -0.22 -0.22 -0.19 -0.17 -0.15 -0.15 -0.14 -0.14 -0.12 -0.11 -0.10 -0.10 -0.08 -0.07 -0.07 -0.04 -0.03 -0.01 0.00 0.04 0.06 0.07 0.08 0.13 0.09 0.14 0.19 0.23 0.28 0.29 0.31 0.37 0.88 0.86 0.77 0.78 0.84 0.86 1.05 1.12 1.18 1.25 1.43 1.66 1.83 2.02 2.23 2.59 2.84 3.35 4.01 6.82 6.62 6.42 7.30 8.23 7.54 12.68 13.76 18.69 19.68 20.90 23.70 25.10 21.65 16.18 18.84 25.44 23.48 23.22 24.89"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 0.0 1.0" geometric_location="0.0269 0.0058 0.0079" />
+        <microphone valid_mask="31" device_id="builtin_mic_2" type="AUDIO_DEVICE_IN_BACK_MIC" address="back" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="1" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="92"
+            frequencies="106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00 20000.00"
+            responses="-0.75 -0.74 -0.69 -0.65 -0.62 -0.61 -0.56 -0.53 -0.50 -0.47 -0.43 -0.40 -0.37 -0.36 -0.33 -0.30 -0.28 -0.25 -0.24 -0.24 -0.24 -0.25 -0.24 -0.12 -0.10 -0.08 -0.09 -0.07 -0.07 -0.06 -0.06 -0.06 -0.05 -0.04 -0.05 -0.04 -0.01 0.02 0.02 0.00 0.02 0.03 0.07 0.10 0.10 0.13 0.01 0.01 0.10 0.11 0.19 0.24 0.38 0.46 0.26 0.27 0.43 0.76 0.75 1.09 1.09 0.94 1.06 1.21 1.47 1.45 1.36 2.07 2.85 2.90 3.85 4.65 5.84 5.46 6.15 7.50 8.30 10.62 12.70 16.65 20.95 25.41 26.32 20.20 16.60 11.24 7.85 7.62 20.19 7.32 2.87 5.18"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 1.0 0.0" geometric_location="0.0546 0.1456 0.00415" />
+        <microphone valid_mask="31" device_id="builtin_mic_3" type="AUDIO_DEVICE_IN_BUILTIN_MIC" address="top" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="2" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="92"
+            frequencies="100.00 106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00"
+            responses="-9.24 -9.31 -9.39 -9.45 -9.46 -9.47 -9.50 -9.52 -9.51 -9.52 -9.51 -9.50 -9.49 -9.47 -9.48 -9.49 -9.48 -9.50 -9.51 -9.53 -9.55 -9.59 -9.63 -9.67 -9.58 -9.57 -9.65 -9.68 -9.71 -9.75 -9.79 -9.84 -9.87 -9.87 -9.90 -9.90 -9.91 -9.97 -10.01 -10.05 -9.85 -9.93 -9.94 -9.98 -10.04 -10.12 -10.28 -10.25 -10.01 -9.86 -9.81 -9.82 -9.61 -9.46 -8.27 -8.42 -8.98 -8.99 -8.82 -9.21 -8.92 -8.97 -9.30 -9.44 -9.52 -9.28 -9.09 -8.81 -7.02 -5.72 -5.30 -7.26 -8.39 -12.28 -8.23 -6.99 -5.52 -4.87 -3.82 -6.09 0.00 -2.15 -0.26 1.48 5.22 10.92 6.41 9.55 12.96 3.35 22.00 19.75"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 0.0 1.0" geometric_location="0.0274 0.14065 0.0079" />
+    </microphone_characteristics>
+    <snd_devices>
+        <input_snd_device>
+            <input_snd_device_mic_mapping>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_CAMCORDER_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_DMIC_TMUS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_SPEAKER_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_STEREO_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_THREE_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_STEREO">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_STEREO">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+            </input_snd_device_mic_mapping>
+        </input_snd_device>
+    </snd_devices>
 </audio_platform_info>
 
diff --git a/configs/sdm660/audio_platform_info_extcodec.xml b/configs/sdm660/audio_platform_info_extcodec.xml
index cc0156b..470f7f7 100755
--- a/configs/sdm660/audio_platform_info_extcodec.xml
+++ b/configs/sdm660/audio_platform_info_extcodec.xml
@@ -110,5 +110,165 @@
         <device name="SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES" backend="headphones" interface="SLIMBUS_6_RX"/>
         <device name="SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES" backend="headphones" interface="SLIMBUS_6_RX"/>
     </backend_names>
+    <!-- below values are for ref purpose to OEM, doesn't contain actual hardware info on MTP -->
+    <microphone_characteristics>
+        <microphone valid_mask="31" device_id="builtin_mic_1" type="AUDIO_DEVICE_IN_BUILTIN_MIC" address="bottom" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="0" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="93"
+            frequencies="100.00 106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00 20000.00"
+            responses="-0.78 -0.71 -0.64 -0.60 -0.55 -0.50 -0.47 -0.42 -0.39 -0.36 -0.34 -0.33 -0.32 -0.29 -0.28 -0.28 -0.27 -0.25 -0.25 -0.24 -0.23 -0.23 -0.22 -0.22 -0.19 -0.17 -0.15 -0.15 -0.14 -0.14 -0.12 -0.11 -0.10 -0.10 -0.08 -0.07 -0.07 -0.04 -0.03 -0.01 0.00 0.04 0.06 0.07 0.08 0.13 0.09 0.14 0.19 0.23 0.28 0.29 0.31 0.37 0.88 0.86 0.77 0.78 0.84 0.86 1.05 1.12 1.18 1.25 1.43 1.66 1.83 2.02 2.23 2.59 2.84 3.35 4.01 6.82 6.62 6.42 7.30 8.23 7.54 12.68 13.76 18.69 19.68 20.90 23.70 25.10 21.65 16.18 18.84 25.44 23.48 23.22 24.89"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 0.0 1.0" geometric_location="0.0269 0.0058 0.0079" />
+        <microphone valid_mask="31" device_id="builtin_mic_2" type="AUDIO_DEVICE_IN_BACK_MIC" address="back" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="1" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="92"
+            frequencies="106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00 20000.00"
+            responses="-0.75 -0.74 -0.69 -0.65 -0.62 -0.61 -0.56 -0.53 -0.50 -0.47 -0.43 -0.40 -0.37 -0.36 -0.33 -0.30 -0.28 -0.25 -0.24 -0.24 -0.24 -0.25 -0.24 -0.12 -0.10 -0.08 -0.09 -0.07 -0.07 -0.06 -0.06 -0.06 -0.05 -0.04 -0.05 -0.04 -0.01 0.02 0.02 0.00 0.02 0.03 0.07 0.10 0.10 0.13 0.01 0.01 0.10 0.11 0.19 0.24 0.38 0.46 0.26 0.27 0.43 0.76 0.75 1.09 1.09 0.94 1.06 1.21 1.47 1.45 1.36 2.07 2.85 2.90 3.85 4.65 5.84 5.46 6.15 7.50 8.30 10.62 12.70 16.65 20.95 25.41 26.32 20.20 16.60 11.24 7.85 7.62 20.19 7.32 2.87 5.18"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 1.0 0.0" geometric_location="0.0546 0.1456 0.00415" />
+        <microphone valid_mask="31" device_id="builtin_mic_3" type="AUDIO_DEVICE_IN_BUILTIN_MIC" address="top" location="AUDIO_MICROPHONE_LOCATION_MAINBODY"
+            group="0" index_in_the_group="2" directionality="AUDIO_MICROPHONE_DIRECTIONALITY_OMNI" num_frequency_responses="92"
+            frequencies="100.00 106.00 112.00 118.00 125.00 132.00 140.00 150.00 160.00 170.00 180.00 190.00 200.00 212.00 224.00 236.00 250.00 265.00 280.00 300.00 315.00 335.00 355.00 375.00 400.00 425.00 450.00 475.00 500.00 530.00 560.00 600.00 630.00 670.00 710.00 750.00 800.00 850.00 900.00 950.00 1000.00 1060.00 1120.00 1180.00 1250.00 1320.00 1400.00 1500.00 1600.00 1700.00 1800.00 1900.00 2000.00 2120.00 2240.00 2360.00 2500.00 2650.00 2800.00 3000.00 3150.00 3350.00 3550.00 3750.00 4000.00 4250.00 4500.00 4750.00 5000.00 5300.00 5600.00 6000.00 6300.00 6700.00 7100.00 7500.00 8000.00 8500.00 9000.00 9500.00 10000.00 10600.00 11200.00 11800.00 12500.00 13200.00 14000.00 15000.00 16000.00 17000.00 18000.00 19000.00"
+            responses="-9.24 -9.31 -9.39 -9.45 -9.46 -9.47 -9.50 -9.52 -9.51 -9.52 -9.51 -9.50 -9.49 -9.47 -9.48 -9.49 -9.48 -9.50 -9.51 -9.53 -9.55 -9.59 -9.63 -9.67 -9.58 -9.57 -9.65 -9.68 -9.71 -9.75 -9.79 -9.84 -9.87 -9.87 -9.90 -9.90 -9.91 -9.97 -10.01 -10.05 -9.85 -9.93 -9.94 -9.98 -10.04 -10.12 -10.28 -10.25 -10.01 -9.86 -9.81 -9.82 -9.61 -9.46 -8.27 -8.42 -8.98 -8.99 -8.82 -9.21 -8.92 -8.97 -9.30 -9.44 -9.52 -9.28 -9.09 -8.81 -7.02 -5.72 -5.30 -7.26 -8.39 -12.28 -8.23 -6.99 -5.52 -4.87 -3.82 -6.09 0.00 -2.15 -0.26 1.48 5.22 10.92 6.41 9.55 12.96 3.35 22.00 19.75"
+            sensitivity="-37.0" max_spl="132.5" min_spl="28.5" orientation="0.0 0.0 1.0" geometric_location="0.0274 0.14065 0.0079" />
+    </microphone_characteristics>
+    <snd_devices>
+        <input_snd_device>
+            <input_snd_device_mic_mapping>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_CAMCORDER_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_REC_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_DMIC_TMUS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_VOICE_SPEAKER_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_AEC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_NS">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_STEREO_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_UNPROCESSED_THREE_MIC">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_HANDSET_DMIC_STEREO">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+                    <snd_dev in_snd_device="SND_DEVICE_IN_SPEAKER_DMIC_STEREO">
+                        <mic_info mic_device_id="builtin_mic_1"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_2"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                        <mic_info mic_device_id="builtin_mic_3"
+                            channel_mapping="AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED"/>
+                    </snd_dev>
+            </input_snd_device_mic_mapping>
+        </input_snd_device>
+    </snd_devices>
 </audio_platform_info>
 
diff --git a/configs/sdm660/sdm660.mk b/configs/sdm660/sdm660.mk
index 047adb0..555340a 100644
--- a/configs/sdm660/sdm660.mk
+++ b/configs/sdm660/sdm660.mk
@@ -245,4 +245,10 @@
     android.hardware.audio@2.0-service \
     android.hardware.audio@2.0-impl \
     android.hardware.audio.effect@2.0-impl \
-    android.hardware.soundtrigger@2.0-impl
+    android.hardware.soundtrigger@2.0-impl \
+    android.hardware.audio@4.0 \
+    android.hardware.audio.common@4.0 \
+    android.hardware.audio.common@4.0-util \
+    android.hardware.audio@4.0-impl \
+    android.hardware.audio.effect@4.0 \
+    android.hardware.audio.effect@4.0-impl
diff --git a/configs/sdm710/mixer_paths_tavil.xml b/configs/sdm710/mixer_paths_tavil.xml
index 0409cc1..1810efa 100644
--- a/configs/sdm710/mixer_paths_tavil.xml
+++ b/configs/sdm710/mixer_paths_tavil.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
-<!-- Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.    -->
+<!-- Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.    -->
 <!--                                                                        -->
 <!-- Redistribution and use in source and binary forms, with or without     -->
 <!-- modification, are permitted provided that the following conditions are -->
@@ -1863,6 +1863,10 @@
         <path name="speaker-mono-2" />
     </path>
 
+    <path name="speaker-hdk">
+        <path name="speaker-mono" />
+    </path>
+
     <path name="speaker-fluid">
         <path name="speaker-mono" />
     </path>
@@ -1954,6 +1958,14 @@
         <ctl name="EAR SPKR PA Gain" value="G_6_DB" />
     </path>
 
+    <path name="handset-hdk">
+        <ctl name="SLIM RX0 MUX" value="AIF1_PB" />
+        <ctl name="CDC_IF RX0 MUX" value="SLIM RX0" />
+        <ctl name="SLIM_0_RX Channels" value="One" />
+        <ctl name="RX INT0_1 MIX1 INP0" value="RX0" />
+        <ctl name="EAR PA Gain" value="G_6_DB" />
+    </path>
+
     <path name="handset-mic">
         <path name="dmic3" />
     </path>
@@ -2069,10 +2081,22 @@
         <path name="handset" />
     </path>
 
+    <path name="voice-handset-hdk">
+        <path name="handset-hdk" />
+    </path>
+
+    <path name="voice-handset-tmus-hdk">
+        <path name="handset-hdk" />
+    </path>
+
     <path name="voice-speaker">
         <path name="speaker-mono" />
     </path>
 
+    <path name="voice-speaker-hdk">
+        <path name="speaker-mono" />
+    </path>
+
     <path name="voice-speaker-2">
         <path name="speaker-mono-2" />
     </path>
@@ -2412,6 +2436,11 @@
         <path name="handset" />
     </path>
 
+    <path name="voice-tty-hco-handset-hdk">
+        <ctl name="TTY Mode" value="HCO" />
+        <path name="handset-hdk" />
+    </path>
+
     <path name="voice-tty-full-headset-mic">
         <path name="amic2" />
         <ctl name="ADC2 Volume" value="0" />
diff --git a/configs/sdm710/sdm710.mk b/configs/sdm710/sdm710.mk
index 22a7d08..cffb2ee 100644
--- a/configs/sdm710/sdm710.mk
+++ b/configs/sdm710/sdm710.mk
@@ -69,6 +69,7 @@
 AUDIO_FEATURE_ENABLED_RAS := true
 AUDIO_FEATURE_ENABLED_SND_MONITOR := true
 AUDIO_FEATURE_ENABLED_DLKM := true
+AUDIO_FEATURE_ENABLED_SVA_MULTI_STAGE := true
 ##AUDIO_FEATURE_FLAGS
 
 ifneq ($(strip $(TARGET_USES_QSSI)), true)
@@ -266,4 +267,4 @@
     android.hardware.audio@2.0-service \
     android.hardware.audio@2.0-impl \
     android.hardware.audio.effect@2.0-impl \
-    android.hardware.soundtrigger@2.0-impl
+    android.hardware.soundtrigger@2.1-impl
diff --git a/configs/sdm710/sound_trigger_platform_info.xml b/configs/sdm710/sound_trigger_platform_info.xml
index 1b8f45a..b37753e 100644
--- a/configs/sdm710/sound_trigger_platform_info.xml
+++ b/configs/sdm710/sound_trigger_platform_info.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
-<!--- Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.       -->
+<!--- Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.       -->
 <!---                                                                           -->
 <!--- Redistribution and use in source and binary forms, with or without        -->
 <!--- modification, are permitted provided that the following conditions are    -->
@@ -47,7 +47,7 @@
         <param DEVICE_HANDSET_MIC_APE="100" />
         <param DEVICE_HANDSET_MIC_CPE="128" />
         <param DEVICE_HANDSET_MIC_ECPP_CPE="128" />
-        <param DEVICE_HANDSET_TMIC_CPE="130" />
+        <param DEVICE_HANDSET_TMIC_CPE="138" />
         <param DEVICE_HANDSET_MIC_PP_APE="135" />
         <param DEVICE_HANDSET_QMIC_APE="137" />
         <param DEVICE_HEADSET_MIC_CPE="139" />
@@ -78,6 +78,23 @@
         <!-- wdsp_fluence_type: fluence disabled: "NONE" -->
         <!-- fluence enabled: "FLUENCE_DMIC", "FLUENCE_TMIC", "FLUENCE_QMIC" -->
         <param wdsp_fluence_type="NONE" />
+        <arm_ss_usecase>
+            <!-- Options are "KEYWORD_DETECTION", "USER_VERIFICATION", "CUSTOM_DETECTION"  -->
+            <param sm_detection_type= "KEYWORD_DETECTION" />
+            <param sm_id="0x2" />
+            <param module_lib="libcapiv2svacnn.so"/>
+            <param sample_rate="16000"/>
+            <param bit_wdith="16"/>
+            <param channel_count="1"/>
+        </arm_ss_usecase>
+        <arm_ss_usecase>
+            <param sm_detection_type= "USER_VERIFICATION" />
+            <param sm_id="0x4" />
+            <param module_lib="libcapiv2vop.so"/>
+            <param sample_rate="16000"/>
+            <param bit_wdith="16"/>
+            <param channel_count="1"/>
+        </arm_ss_usecase>
         <gcs_usecase>
             <param uid="0x1" />
             <!-- module_id, instance_id, param_id -->
diff --git a/hal/Android.mk b/hal/Android.mk
index fb03343..94c21bd 100644
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -405,6 +405,15 @@
     LOCAL_CFLAGS += -DUSB_BURST_MODE_ENABLED
 endif
 
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_BATTERY_LISTENER)), true)
+    LOCAL_CFLAGS += -DBATTERY_LISTENER_ENABLED
+    LOCAL_SRC_FILES += audio_extn/battery_listener.cpp
+    LOCAL_SHARED_LIBRARIES += android.hardware.health@1.0 android.hardware.health@2.0 \
+                              libhidltransport libbase libhidlbase libhwbinder \
+                              libutils android.hardware.power@1.2
+    LOCAL_STATIC_LIBRARIES := libhealthhalutils
+endif
+
 LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_COPY_HEADERS_TO   := mm-audio
diff --git a/hal/audio_extn/audio_extn.c b/hal/audio_extn/audio_extn.c
index 28aa23a..5b388a8 100755
--- a/hal/audio_extn/audio_extn.c
+++ b/hal/audio_extn/audio_extn.c
@@ -80,6 +80,7 @@
 
 static struct audio_extn_module aextnmod;
 
+#define AUDIO_PARAMETER_KEY_AANC_NOISE_LEVEL "aanc_noise_level"
 #define AUDIO_PARAMETER_KEY_ANC        "anc_enabled"
 #define AUDIO_PARAMETER_KEY_WFD        "wfd_channel_cap"
 #define AUDIO_PARAMETER_CAN_OPEN_PROXY "can_open_proxy"
@@ -467,6 +468,26 @@
   return false;
 }
 
+void audio_extn_set_aanc_noise_level(struct audio_device *adev,
+                                     struct str_parms *parms)
+{
+    int ret;
+    char value[32] = {0};
+    struct mixer_ctl *ctl = NULL;
+    const char *mixer_ctl_name = "AANC Noise Level";
+
+    ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_AANC_NOISE_LEVEL, value,
+                            sizeof(value));
+    if (ret >= 0) {
+        ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+        if (ctl)
+            mixer_ctl_set_value(ctl, 0, atoi(value));
+        else
+            ALOGW("%s: Not able to get mixer ctl: %s",
+                  __func__, mixer_ctl_name);
+    }
+}
+
 void audio_extn_set_anc_parameters(struct audio_device *adev,
                                    struct str_parms *parms)
 {
@@ -816,6 +837,7 @@
 void audio_extn_set_parameters(struct audio_device *adev,
                                struct str_parms *parms)
 {
+   audio_extn_set_aanc_noise_level(adev, parms);
    audio_extn_set_anc_parameters(adev, parms);
    audio_extn_set_fluence_parameters(adev, parms);
    audio_extn_set_afe_proxy_parameters(adev, parms);
diff --git a/hal/audio_extn/audio_extn.h b/hal/audio_extn/audio_extn.h
index e7d2386..efa32d4 100644
--- a/hal/audio_extn/audio_extn.h
+++ b/hal/audio_extn/audio_extn.h
@@ -41,6 +41,7 @@
 #include <cutils/str_parms.h>
 #include "adsp_hdlr.h"
 #include "ip_hdlr_intf.h"
+#include "battery_listener.h"
 
 #ifndef AFE_PROXY_ENABLED
 #define AUDIO_DEVICE_OUT_PROXY 0x40000
@@ -378,6 +379,7 @@
 #define audio_extn_sound_trigger_deinit(adev)                          (0)
 #define audio_extn_sound_trigger_update_device_status(snd_dev, event)  (0)
 #define audio_extn_sound_trigger_update_stream_status(uc_info, event)  (0)
+#define audio_extn_sound_trigger_update_battery_status(charging)       (0)
 #define audio_extn_sound_trigger_set_parameters(adev, parms)           (0)
 #define audio_extn_sound_trigger_get_parameters(adev, query, reply)    (0)
 #define audio_extn_sound_trigger_check_and_get_session(in)             (0)
@@ -399,6 +401,7 @@
                                      st_event_type_t event);
 void audio_extn_sound_trigger_update_stream_status(struct audio_usecase *uc_info,
                                      st_event_type_t event);
+void audio_extn_sound_trigger_update_battery_status(bool charging);
 void audio_extn_sound_trigger_set_parameters(struct audio_device *adev,
                                              struct str_parms *parms);
 void audio_extn_sound_trigger_check_and_get_session(struct stream_in *in);
diff --git a/hal/audio_extn/battery_listener.cpp b/hal/audio_extn/battery_listener.cpp
new file mode 100644
index 0000000..582e9e6
--- /dev/null
+++ b/hal/audio_extn/battery_listener.cpp
@@ -0,0 +1,247 @@
+/*
+* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#define LOG_TAG "audio_hw::BatteryListener"
+#include <log/log.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <android/hardware/health/2.0/IHealth.h>
+#include <healthhalutils/HealthHalUtils.h>
+#include <hidl/HidlTransportSupport.h>
+#include <thread>
+#include "battery_listener.h"
+
+using android::hardware::interfacesEqual;
+using android::hardware::Return;
+using android::hardware::Void;
+using android::hardware::health::V1_0::BatteryStatus;
+using android::hardware::health::V1_0::toString;
+using android::hardware::health::V2_0::get_health_service;
+using android::hardware::health::V2_0::HealthInfo;
+using android::hardware::health::V2_0::IHealth;
+using android::hardware::health::V2_0::Result;
+using android::hidl::manager::V1_0::IServiceManager;
+using namespace std::literals::chrono_literals;
+
+namespace android {
+
+#define GET_HEALTH_SVC_RETRY_CNT 5
+#define GET_HEALTH_SVC_WAIT_TIME_MS 500
+
+struct BatteryListenerImpl : public hardware::health::V2_0::IHealthInfoCallback,
+                             public hardware::hidl_death_recipient {
+    typedef std::function<void(bool)> cb_fn_t;
+    BatteryListenerImpl(cb_fn_t cb);
+    virtual ~BatteryListenerImpl ();
+    virtual hardware::Return<void> healthInfoChanged(
+        const hardware::health::V2_0::HealthInfo& info);
+    virtual void serviceDied(uint64_t cookie,
+                             const wp<hidl::base::V1_0::IBase>& who);
+    bool isCharging() {
+        std::lock_guard<std::mutex> _l(mLock);
+        return statusToBool(mStatus);
+    }
+  private:
+    sp<hardware::health::V2_0::IHealth> mHealth;
+    status_t init();
+    BatteryStatus mStatus;
+    cb_fn_t mCb;
+    std::mutex mLock;
+    std::condition_variable mCond;
+    std::unique_ptr<std::thread> mThread;
+    bool mDone;
+    bool statusToBool(const BatteryStatus &s) const {
+        return (s == BatteryStatus::CHARGING) ||
+               (s ==  BatteryStatus::FULL);
+    }
+};
+
+status_t BatteryListenerImpl::init()
+{
+    int tries = 0;
+
+    if (mHealth != NULL)
+        return INVALID_OPERATION;
+
+    do {
+        mHealth = get_health_service();
+        if (mHealth != NULL)
+            break;
+        usleep(GET_HEALTH_SVC_WAIT_TIME_MS * 1000);
+        tries++;
+    } while(tries < GET_HEALTH_SVC_RETRY_CNT);
+
+    if (mHealth == NULL) {
+        ALOGE("no health service found, retries %d", tries);
+        return NO_INIT;
+    } else {
+        ALOGI("Get health service in %d tries", tries);
+    }
+    mStatus = BatteryStatus::UNKNOWN;
+    auto ret = mHealth->getChargeStatus([&](Result r, BatteryStatus status) {
+        if (r != Result::SUCCESS) {
+            ALOGE("batterylistener: cannot get battery status");
+            return;
+        }
+        mStatus = status;
+    });
+    if (!ret.isOk())
+        ALOGE("batterylistener: get charge status transaction error");
+
+    if (mStatus == BatteryStatus::UNKNOWN)
+        ALOGW("batterylistener: init: invalid battery status");
+    mDone = false;
+    mThread = std::make_unique<std::thread>([this]() {
+            std::unique_lock<std::mutex> l(mLock);
+            BatteryStatus local_status = mStatus;
+            while (!mDone) {
+                if (local_status == mStatus) {
+                    mCond.wait(l);
+                    continue;
+                }
+                local_status = mStatus;
+                switch (local_status) {
+                    // NOT_CHARGING is a special event that indicates, a battery is connected,
+                    // but not charging. This is seen for approx a second
+                    // after charger is plugged in. A charging event is eventually received.
+                    // We must try to avoid an unnecessary cb to HAL
+                    // only to call it again shortly.
+                    // An option to deal with this transient event would be to ignore this.
+                    // Or process this event with a slight delay (i.e cancel this event
+                    // if a different event comes in within a timeout
+                    case BatteryStatus::NOT_CHARGING : {
+                        auto mStatusnot_ncharging =
+                                [this, local_status]() { return mStatus != local_status; };
+                        mCond.wait_for(l, 3s, mStatusnot_ncharging);
+                        if (mStatusnot_ncharging()) // i.e event changed
+                            break;
+                    }
+                    default:
+                        bool c = statusToBool(local_status);
+                        ALOGI("healthInfo cb thread: cb %s", c ? "CHARGING" : "NOT CHARGING");
+                        l.unlock();
+                        mCb(c);
+                        l.lock();
+                        break;
+                }
+            }
+        });
+    mHealth->registerCallback(this);
+    mHealth->linkToDeath(this, 0 /* cookie */);
+    return NO_ERROR;
+}
+
+BatteryListenerImpl::BatteryListenerImpl(cb_fn_t cb) :
+        mCb(cb)
+{
+    init();
+}
+
+BatteryListenerImpl::~BatteryListenerImpl()
+{
+    {
+        std::lock_guard<std::mutex> _l(mLock);
+        if (mHealth != NULL)
+            mHealth->unlinkToDeath(this);
+    }
+    mDone = true;
+    mThread->join();
+}
+
+void BatteryListenerImpl::serviceDied(uint64_t cookie __unused,
+                                     const wp<hidl::base::V1_0::IBase>& who)
+{
+    {
+        std::lock_guard<std::mutex> _l(mLock);
+        if (mHealth == NULL || !interfacesEqual(mHealth, who.promote())) {
+            ALOGE("health not initialized or unknown interface died");
+            return;
+        }
+        ALOGI("health service died, reinit");
+        mDone = true;
+    }
+    mThread->join();
+    std::lock_guard<std::mutex> _l(mLock);
+    init();
+}
+
+// this callback seems to be a SYNC callback and so
+// waits for return before next event is issued.
+// therefore we need not have a queue to process
+// NOT_CHARGING and CHARGING concurrencies.
+// Replace single var by a list if this assumption is broken
+Return<void> BatteryListenerImpl::healthInfoChanged(
+        const hardware::health::V2_0::HealthInfo& info)
+{
+    ALOGV("healthInfoChanged: %d", info.legacy.batteryStatus);
+    std::unique_lock<std::mutex> l(mLock);
+    if (info.legacy.batteryStatus != mStatus) {
+        mStatus = info.legacy.batteryStatus;
+        mCond.notify_one();
+    }
+    return Void();
+}
+
+static sp<BatteryListenerImpl> batteryListener;
+status_t batteryPropertiesListenerInit(BatteryListenerImpl::cb_fn_t cb)
+{
+    batteryListener = new BatteryListenerImpl(cb);
+    return NO_ERROR;
+}
+
+status_t batteryPropertiesListenerDeinit()
+{
+    batteryListener.clear();
+    return OK;
+}
+
+bool batteryPropertiesListenerIsCharging()
+{
+    return batteryListener->isCharging();
+}
+
+} // namespace android
+
+extern "C" {
+void audio_extn_battery_properties_listener_init(battery_status_change_fn_t fn)
+{
+    android::batteryPropertiesListenerInit([=](bool charging) {
+                                               fn(charging);
+                                          });
+}
+
+void audio_extn_battery_properties_listener_deinit()
+{
+    android::batteryPropertiesListenerDeinit();
+}
+
+bool audio_extn_battery_properties_is_charging()
+{
+    return android::batteryPropertiesListenerIsCharging();
+}
+
+} // extern C
diff --git a/hal/audio_extn/battery_listener.h b/hal/audio_extn/battery_listener.h
new file mode 100644
index 0000000..2fcd010
--- /dev/null
+++ b/hal/audio_extn/battery_listener.h
@@ -0,0 +1,44 @@
+/*
+* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+*       copyright notice, this list of conditions and the following
+*       disclaimer in the documentation and/or other materials provided
+*       with the distribution.
+*     * Neither the name of The Linux Foundation nor the names of its
+*       contributors may be used to endorse or promote products derived
+*       from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifdef BATTERY_LISTENER_ENABLED
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef void (* battery_status_change_fn_t)(bool);
+void audio_extn_battery_properties_listener_init(battery_status_change_fn_t fn);
+void audio_extn_battery_properties_listener_deinit();
+bool audio_extn_battery_properties_is_charging();
+#ifdef __cplusplus
+}
+#endif
+#else
+#define audio_extn_battery_properties_listener_init(fn) do { } while(0)
+#define audio_extn_battery_properties_listener_deinit() do { } while(0)
+#define audio_extn_battery_properties_is_charging() (false)
+#endif
diff --git a/hal/audio_extn/soundtrigger.c b/hal/audio_extn/soundtrigger.c
index 0fa30d0..b2e1bef 100644
--- a/hal/audio_extn/soundtrigger.c
+++ b/hal/audio_extn/soundtrigger.c
@@ -80,6 +80,7 @@
     AUDIO_EVENT_SVA_EXEC_MODE_STATUS,
     AUDIO_EVENT_CAPTURE_STREAM_INACTIVE,
     AUDIO_EVENT_CAPTURE_STREAM_ACTIVE,
+    AUDIO_EVENT_BATTERY_STATUS_CHANGED,
 } audio_event_type_t;
 
 typedef enum {
@@ -500,12 +501,16 @@
         __func__, uc_info->id, uc_info->type, event, raise_event);
     if (raise_event) {
         if (uc_info->type == PCM_PLAYBACK) {
+            if (uc_info->stream.out)
+                ev_info.device_info.device = uc_info->stream.out->devices;
+            else
+                ev_info.device_info.device = AUDIO_DEVICE_OUT_SPEAKER;
             switch(event) {
             case ST_EVENT_STREAM_FREE:
-                st_dev->st_callback(AUDIO_EVENT_PLAYBACK_STREAM_INACTIVE, NULL);
+                st_dev->st_callback(AUDIO_EVENT_PLAYBACK_STREAM_INACTIVE, &ev_info);
                 break;
             case ST_EVENT_STREAM_BUSY:
-                st_dev->st_callback(AUDIO_EVENT_PLAYBACK_STREAM_ACTIVE, NULL);
+                st_dev->st_callback(AUDIO_EVENT_PLAYBACK_STREAM_ACTIVE, &ev_info);
                 break;
             default:
                 ALOGW("%s:invalid event %d, for usecase %d",
@@ -525,6 +530,18 @@
     }
 }
 
+void audio_extn_sound_trigger_update_battery_status(bool charging)
+{
+    struct audio_event_info ev_info;
+
+    if (!st_dev || st_dev->sthal_prop_api_version < STHAL_PROP_API_VERSION_1_0)
+        return;
+
+    ev_info.u.value = charging;
+    st_dev->st_callback(AUDIO_EVENT_BATTERY_STATUS_CHANGED, &ev_info);
+}
+
+
 void audio_extn_sound_trigger_set_parameters(struct audio_device *adev __unused,
                                struct str_parms *params)
 {
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index f07a3ce..fa36879 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2275,7 +2275,8 @@
 
     /* If input stream is already running then effect needs to be
        applied on the new input device that's being enabled here.  */
-    if ((in_snd_device != SND_DEVICE_NONE) && (!adev->active_input->standby))
+    if ((in_snd_device != SND_DEVICE_NONE) && (adev->active_input != NULL) &&
+        (!adev->active_input->standby))
         check_and_enable_effect(adev);
 
     if (usecase->type == VOICE_CALL || usecase->type == VOIP_CALL) {
@@ -7389,6 +7390,15 @@
     return ret;
 }
 
+void adev_on_battery_status_changed(bool charging)
+{
+    pthread_mutex_lock(&adev->lock);
+    ALOGI("%s: battery status changed to %scharging", __func__, charging ? "" : "not ");
+    adev->is_charging = charging;
+    audio_extn_sound_trigger_update_battery_status(charging);
+    pthread_mutex_unlock(&adev->lock);
+}
+
 static int adev_open(const hw_module_t *module, const char *name,
                      hw_device_t **device)
 {
@@ -7634,8 +7644,16 @@
     pthread_mutex_lock(&adev->lock);
     audio_extn_snd_mon_register_listener(adev, adev_snd_mon_cb);
     adev->card_status = CARD_STATUS_ONLINE;
-    pthread_mutex_unlock(&adev->lock);
+    audio_extn_battery_properties_listener_init(adev_on_battery_status_changed);
+    /*
+     * if the battery state callback happens before charging can be queried,
+     * it will be guarded with the adev->lock held in the cb function and so
+     * the callback value will reflect the latest state
+     */
+    adev->is_charging = audio_extn_battery_properties_is_charging();
     audio_extn_sound_trigger_init(adev); /* dependent on snd_mon_init() */
+    audio_extn_sound_trigger_update_battery_status(adev->is_charging);
+    pthread_mutex_unlock(&adev->lock);
     /* Allocate memory for Device config params */
     adev->device_cfg_params = (struct audio_device_config_param*)
                                   calloc(platform_get_max_codec_backend(),
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index 497b5c8..c29f7b8 100755
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -486,6 +486,7 @@
     unsigned int cur_wfd_channels;
     bool bt_wb_speech_enabled;
     bool allow_afe_proxy_usage;
+    bool is_charging; // from battery listener
 
     int snd_card;
     card_status_t card_status;
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 41d6e6b..c11ba22 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -233,6 +233,11 @@
 static int max_be_dai_names = 0;
 static const struct be_dai_name_struct *be_dai_name_table;
 
+struct snd_device_to_mic_map {
+    struct mic_info microphones[AUDIO_MICROPHONE_MAX_COUNT];
+    size_t mic_count;
+};
+
 struct platform_data {
     struct audio_device *adev;
     bool fluence_in_spkr_mode;
@@ -298,6 +303,9 @@
     struct listnode acdb_meta_key_list;
     bool use_generic_handset;
     struct acdb_init_data_v4 acdb_init_data;
+    uint32_t declared_mic_count;
+    struct audio_microphone_characteristic_t microphones[AUDIO_MICROPHONE_MAX_COUNT];
+    struct snd_device_to_mic_map mic_map[SND_DEVICE_MAX];
 };
 
 static bool is_external_codec = false;
@@ -2280,6 +2288,7 @@
     my_data->hw_dep_fd = -1;
     my_data->mono_speaker = SPKR_1;
     my_data->voice_speaker_stereo = false;
+    my_data->declared_mic_count = 0;
 
     be_dai_name_table = NULL;
 
@@ -7433,6 +7442,7 @@
         (!strcmp(snd_card_name, "msm8976-skun-snd-card")) ||
         (!strcmp(snd_card_name, "msm8953-snd-card-mtp")) ||
         (!strcmp(snd_card_name, "msm8953-sku4-snd-card")) ||
+        (!strcmp(snd_card_name, "sdm439-sku1-snd-card")) ||
         (!strcmp(snd_card_name, "sdm439-snd-card-mtp")))
         return 1;
     else
@@ -8117,25 +8127,103 @@
     return id_string;
 }
 
-bool platform_set_microphone_characteristic(void *platform __unused,
-                                            struct audio_microphone_characteristic_t mic __unused) {
-    return -ENOSYS;
+bool platform_set_microphone_characteristic(void *platform,
+                                            struct audio_microphone_characteristic_t mic) {
+    struct platform_data *my_data = (struct platform_data *)platform;
+    if (my_data->declared_mic_count >= AUDIO_MICROPHONE_MAX_COUNT) {
+        ALOGE("mic number is more than maximum number");
+        return false;
+    }
+    for (size_t ch = 0; ch < AUDIO_CHANNEL_COUNT_MAX; ch++) {
+        mic.channel_mapping[ch] = AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED;
+    }
+    my_data->microphones[my_data->declared_mic_count++] = mic;
+    return true;
 }
 
-int platform_get_microphones(void *platform __unused,
-                             struct audio_microphone_characteristic_t *mic_array __unused,
-                             size_t *mic_count __unused) {
-    return -ENOSYS;
+int platform_get_microphones(void *platform,
+                             struct audio_microphone_characteristic_t *mic_array,
+                             size_t *mic_count) {
+    struct platform_data *my_data = (struct platform_data *)platform;
+    if (mic_count == NULL)
+        return -EINVAL;
+    if (mic_array == NULL)
+        return -EINVAL;
+
+    if (*mic_count == 0) {
+        *mic_count = my_data->declared_mic_count;
+        return 0;
+    }
+
+    size_t max_mic_count = *mic_count;
+    size_t actual_mic_count = 0;
+    for (size_t i = 0; i < max_mic_count && i < my_data->declared_mic_count; i++) {
+        mic_array[i] = my_data->microphones[i];
+        actual_mic_count++;
+    }
+    *mic_count = actual_mic_count;
+    ALOGV("%s: returning number of mics %d", __func__, (int)*mic_count);
+    return 0;
 }
 
-bool platform_set_microphone_map(void *platform __unused, snd_device_t in_snd_device __unused,
-                                 const struct mic_info *info __unused) {
-    return false;
+bool platform_set_microphone_map(void *platform, snd_device_t in_snd_device,
+                                 const struct mic_info *info) {
+    struct platform_data *my_data = (struct platform_data *)platform;
+    if (in_snd_device < SND_DEVICE_IN_BEGIN || in_snd_device >= SND_DEVICE_IN_END) {
+        ALOGE("%s: Sound device not valid", __func__);
+        return false;
+    }
+    size_t m_count = my_data->mic_map[in_snd_device].mic_count++;
+    if (m_count >= AUDIO_MICROPHONE_MAX_COUNT) {
+        ALOGE("%s: Microphone count is greater than max allowed value", __func__);
+        my_data->mic_map[in_snd_device].mic_count--;
+        return false;
+    }
+    my_data->mic_map[in_snd_device].microphones[m_count] = *info;
+    return true;
 }
 
-int platform_get_active_microphones(void *platform __unused, unsigned int channels __unused,
-                                    audio_usecase_t usecase __unused,
-                                    struct audio_microphone_characteristic_t *mic_array __unused,
-                                    size_t *mic_count __unused) {
-    return -ENOSYS;
+int platform_get_active_microphones(void *platform, unsigned int channels,
+                                    audio_usecase_t uc_id,
+                                    struct audio_microphone_characteristic_t *mic_array,
+                                    size_t *mic_count) {
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_usecase *usecase = get_usecase_from_list(my_data->adev, uc_id);
+    if (mic_count == NULL || mic_array == NULL || usecase == NULL) {
+        return -EINVAL;
+    }
+    size_t max_mic_count = my_data->declared_mic_count;
+    size_t actual_mic_count = 0;
+
+    snd_device_t active_input_snd_device =
+            platform_get_input_snd_device(platform, usecase->stream.in->device);
+    if (active_input_snd_device == SND_DEVICE_NONE) {
+        ALOGI("%s: No active microphones found", __func__);
+        goto end;
+    }
+
+    size_t  active_mic_count = my_data->mic_map[active_input_snd_device].mic_count;
+    struct mic_info *m_info = my_data->mic_map[active_input_snd_device].microphones;
+
+    for (size_t i = 0; i < active_mic_count; i++) {
+        unsigned int channels_for_active_mic = channels;
+        if (channels_for_active_mic > m_info[i].channel_count) {
+            channels_for_active_mic = m_info[i].channel_count;
+        }
+        for (size_t j = 0; j < max_mic_count; j++) {
+            if (strcmp(my_data->microphones[j].device_id,
+                       m_info[i].device_id) == 0) {
+                mic_array[actual_mic_count] = my_data->microphones[j];
+                for (size_t ch = 0; ch < channels_for_active_mic; ch++) {
+                     mic_array[actual_mic_count].channel_mapping[ch] =
+                             m_info[i].channel_mapping[ch];
+                }
+                actual_mic_count++;
+                break;
+            }
+        }
+    }
+end:
+    *mic_count = actual_mic_count;
+    return 0;
 }
diff --git a/hal/msm8974/hw_info.c b/hal/msm8974/hw_info.c
index ea6b7bf..b6b11ad 100644
--- a/hal/msm8974/hw_info.c
+++ b/hal/msm8974/hw_info.c
@@ -573,16 +573,25 @@
 static void update_hardware_info_bear(struct hardware_info *hw_info, const char *snd_card_name)
 {
     if (!strncmp(snd_card_name, "sdm660-snd-card",
-                 sizeof("sdm660-snd-card")))
+                 sizeof("sdm660-snd-card"))) {
         strlcpy(hw_info->name, "sdm660", sizeof(hw_info->name));
-    else if (!strncmp(snd_card_name, "sdm660-tavil-snd-card",
-                      sizeof("sdm660-tavil-snd-card")))
+    } else if (!strncmp(snd_card_name, "sdm660-tavil-snd-card",
+                      sizeof("sdm660-tavil-snd-card"))) {
         strlcpy(hw_info->name, "sdm660", sizeof(hw_info->name));
-    else if (!strncmp(snd_card_name, "sdm670-skuw-snd-card",
-                      sizeof("sdm670-skuw-snd-card")))
+    } else if (!strncmp(snd_card_name, "sdm670-skuw-snd-card",
+                      sizeof("sdm670-skuw-snd-card"))) {
         hw_info->is_stereo_spkr = false;
-    else
+    } else if ( !strncmp(snd_card_name, "sdm670-tavil-hdk-snd-card",
+                      sizeof("sdm670-tavil-hdk-snd-card"))) {
+        strlcpy(hw_info->type, " hdk", sizeof(hw_info->type));
+        strlcpy(hw_info->name, "sdm670", sizeof(hw_info->name));
+        hw_info->snd_devices = (snd_device_t *)tavil_qrd_variant_devices;
+        hw_info->num_snd_devices = ARRAY_SIZE(tavil_qrd_variant_devices);
+        hw_info->is_stereo_spkr = false;
+        strlcpy(hw_info->dev_extn, "-hdk", sizeof(hw_info->dev_extn));
+    } else {
         ALOGW("%s: Not an SDM device", __func__);
+    }
 }
 
 void *hw_info_init(const char *snd_card_name)