[R] ModemConfig: Implement properties using sysprop

Signed-off-by: Marijn Suijten <marijns95@gmail.com>

ModemConfig/Android.bp

@@ -9,6 +9,8 @@ android_app {
 
     required: ["privapp_whitelist_com.sony.opentelephony.modemconfig"],
 
+    libs: ["SomcModemProperties"],
+
     sdk_version: "system_current",
 }
 

ModemConfig/src/com/sony/opentelephony/modemconfig/ModemConfigService.kt

@@ -28,6 +28,7 @@ import android.telephony.SubscriptionManager
 import android.telephony.TelephonyManager
 import android.text.TextUtils
 import android.util.Log
+import com.sony.opentelephony.modemconfig.SomcModemProperties
 import org.xmlpull.v1.XmlPullParser
 import java.nio.file.Files
 import java.nio.file.Paths
@@ -198,6 +199,14 @@ context.resources.getXml(R.xml.service_provider_sim_configs).use {
         val name = findConfigurationName(this, tm)
 
         val notificationText = if (name != null) {
+            val prop = "persist.somc.cust.modem${sub.simSlotIndex}"
+            Log.d(TAG, "Setting $prop to $name")
+            when (sub.simSlotIndex) {
+                0 -> SomcModemProperties.cust_modem_0(name)
+                1 -> SomcModemProperties.cust_modem_1(name)
+                else -> throw Exception("Unknown slotIdx ${sub.simSlotIndex}")
+            }
+
             resources.getString(
                     R.string.notification_text_modem_configuration_resolved_modem_config,
                     name,

ModemConfig/sysprop/Android.bp

@@ -0,0 +1,9 @@
+sysprop_library {
+    name: "SomcModemProperties",
+    proprietary: true,
+
+    srcs: ["SomcModemProperties.sysprop"],
+
+    property_owner: "Vendor",
+    api_packages: ["android.sysprop"],
+}

ModemConfig/sysprop/README.md

@@ -0,0 +1,14 @@
+### Updating sysprop files
+
+#### Android 11 (R)
+
+Optional when not lunched for a device:
+```sh
+lunch sdk # (Can use sdk-eng too)
+export ALLOW_MISSING_DEPENDENCIES=true # Ignore errors about hostapd, wpa_supplicant etc missing
+```
+
+```sh
+build/soong/scripts/gen-sysprop-api-files.sh "vendor/oss/opentelephony/ModemConfig/sysprop" "SomcModemProperties"
+m SomcModemProperties-dump-api && rm -rf vendor/oss/opentelephony/ModemConfig/sysprop/api/SomcModemProperties-current.txt && cp -f out/soong/.intermediates/vendor/oss/opentelephony/ModemConfig/sysprop/SomcModemProperties_sysprop_library/api-dump.txt vendor/oss/opentelephony/ModemConfig/sysprop/api/SomcModemProperties-current.txt
+```

ModemConfig/sysprop/SomcModemProperties.sysprop

@@ -0,0 +1,18 @@
+module: "com.sony.opentelephony.modemconfig.SomcModemProperties"
+owner: Vendor
+
+prop {
+    api_name: "cust_modem_0"
+    type: String
+    scope: Internal
+    access: ReadWrite
+    prop_name: "vendor.somc.cust.modem0"
+}
+
+prop {
+    api_name: "cust_modem_1"
+    type: String
+    scope: Internal
+    access: ReadWrite
+    prop_name: "vendor.somc.cust.modem1"
+}