begonia: rootdir: Fix in-call volumes

* Add shell daemon for correcting volumes using tinymix (don't forget add this tool to build)
* Kang idea by phhusson/treble_experimentations#1908

* Refactored code
* Also adapt channels and sh path for A12

Signed-off-by: 7Soldier <reg.fm4@gmail.com>

device.mk

@@ -38,7 +38,8 @@ PRODUCT_PACKAGES += \
     libtinycompress \
     libtinycompress.vendor \
     libaudiofoundation \
-    libaudiofoundation.vendor
+    libaudiofoundation.vendor \
+    tinymix
 
 PRODUCT_COPY_FILES += \
     $(call find-copy-subdir-files,*,$(LOCAL_PATH)/configs/audio/,$(TARGET_COPY_OUT_VENDOR)/etc)
@@ -264,12 +265,14 @@ PRODUCT_COPY_FILES += \
 # Ramdisk
 PRODUCT_PACKAGES += \
     partition_permission.sh \
+    setup_MTK_In-Call_volume_adjust.sh \
     throttle.sh \
     init.connectivity.rc \
     init.modem.rc \
     init.mt6785.rc \
     init.mt6785.power.rc \
     init.mt6785.usb.rc \
+    init.mtkincalladj.rc \
     init.project.rc \
     init.sensor_1_0.rc \
     init.ttl.rc \

rootdir/Android.mk

@@ -41,6 +41,14 @@ LOCAL_SRC_FILES    := etc/init.mt6785.usb.rc
 LOCAL_MODULE_PATH  := $(TARGET_OUT_VENDOR_ETC)/init/hw
 include $(BUILD_PREBUILT)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE       := setup_MTK_In-Call_volume_adjust.sh
+LOCAL_MODULE_TAGS  := optional
+LOCAL_MODULE_CLASS := ETC
+LOCAL_SRC_FILES    := bin/setup_MTK_In-Call_volume_adjust.sh
+LOCAL_MODULE_PATH  := $(TARGET_OUT_VENDOR_EXECUTABLES)
+include $(BUILD_PREBUILT)
+
 include $(CLEAR_VARS)
 LOCAL_MODULE       := init.project.rc
 LOCAL_MODULE_TAGS  := optional
@@ -83,6 +91,14 @@ LOCAL_SRC_FILES    := etc/fstab.mt6785
 LOCAL_MODULE_PATH  := $(TARGET_RAMDISK_OUT)
 include $(BUILD_PREBUILT)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE       := init.mtkincalladj.rc
+LOCAL_MODULE_TAGS  := optional
+LOCAL_MODULE_CLASS := ETC
+LOCAL_SRC_FILES    := etc/init.mtkincalladj.rc
+LOCAL_MODULE_PATH  := $(TARGET_OUT_VENDOR_ETC)/init/hw
+include $(BUILD_PREBUILT)
+
 include $(CLEAR_VARS)
 LOCAL_MODULE       := ueventd.mt6785.rc
 LOCAL_MODULE_STEM  := ueventd.rc

rootdir/bin/setup_MTK_In-Call_volume_adjust.sh

@@ -0,0 +1,61 @@
+#!/vendor/bin/sh
+### Begonia In-call volume fix by TTTT555 ###
+while [ "$(getprop sys.boot_completed | tr -d '\r')" != "1" ]; do sleep 1; done
+sleep 10
+
+# Channel current volume (to find all params use "tinymix" command)
+chcurrent=$(/system/bin/tinymix "ADDA_DL_GAIN" --v)
+# Used gain = chcurrent + our offset < max value by tinymix "ADDA_DL_GAIN"
+chused=65535
+# Start value need less than $callmin
+callcurrentold=0
+
+# Logging
+/system/bin/log -t MTKInCallDirtyFix "Starting Service"
+/system/bin/log -t MTKInCallDirtyFix "Hardware Current Gain: $chcurrent"
+/system/bin/log -t MTKInCallDirtyFix "Hardware Used Gain: $chused"
+
+# Loop every 2 seconds
+while true
+do
+	# Check call status
+	callstatus=$(/system/bin/tinymix "Speech_SCP_CALL_STATE" --v)
+
+	if [ "$callstatus" = 1 ]
+		then
+		# Check call min volume in decimal FIXME: write HEX to DEX in one line
+		callmin=$(/system/bin/service call audio 18 i32 0 | /system/bin/awk -F ' ' '{print $3}' | sed 's/0*//')
+		callmin=$(echo $((16#$callmin)))
+		# Check call max volume in decimal FIXME: write HEX to DEX in one line
+		callmax=$(/system/bin/service call audio 19 i32 0 | /system/bin/awk -F ' ' '{print $3}' | sed 's/0*//')
+		callmax=$(echo $((16#$callmax)))
+		# Calculate interval for using via parabolic function
+		interval=$(/system/bin/expr $chused / $callmax / $callmax)
+
+		# Enable deep buffer for fix crackling
+		/system/bin/tinymix "deep_buffer_irq_cnt" 2048
+		/system/bin/tinymix "deep_buffer_scenario" 1
+
+	while [ "$callstatus" = 1 ]
+	do
+		# Check choosen volume level FIXME: write HEX to DEX in one line
+		callcurrent=$(/system/bin/service call audio 17 i32 0 | /system/bin/awk -F ' ' '{print $3}' | sed 's/0*//')
+		callcurrent=$(echo $((16#$callcurrent)))
+		if [ "$callcurrentold" != "$callcurrent" ]
+			then
+			# Calculate and write the new channel volume via parabolic function & rewrite max Db for small speaker
+			newchvol=$(/system/bin/expr $callcurrent \* $callcurrent \* $interval)
+			/system/bin/tinymix "ADDA_DL_GAIN" $newchvol
+			/system/bin/tinymix "Handset_PGA_GAIN" 8Db
+			/system/bin/log -t MTKInCallDirtyFix "Hardware In-Call Volume: $newchvol"
+			callcurrentold=$callcurrent
+		fi
+		callstatus=$(/system/bin/tinymix "Speech_SCP_CALL_STATE" --v)
+	done
+	# Restore $callcurrentold and chcurrent
+	/system/bin/tinymix "ADDA_DL_GAIN" $chcurrent
+	callcurrentold=0
+	fi
+sleep 2
+
+done

rootdir/etc/init.mt6785.rc

@@ -1,6 +1,7 @@
 import /vendor/etc/init/hw/init.connectivity.rc
 import /vendor/etc/init/hw/init.mt6785.power.rc
 import /vendor/etc/init/hw/init.mt6785.usb.rc
+import /vendor/etc/init/hw/init.mtkincalladj.rc
 import /vendor/etc/init/hw/init.project.rc
 import /vendor/etc/init/hw/init.sensor_1_0.rc
 import /vendor/etc/init/hw/init.ttl.rc

rootdir/etc/init.mtkincalladj.rc

@@ -0,0 +1,9 @@
+on boot
+    start incalladj
+
+# Start in-call volume adjusting for headset
+service incalladj /vendor/bin/setup_MTK_In-Call_volume_adjust.sh
+	class main
+	user root
+	seclabel u:r:su:s0
+	oneshot