Porting to a no modem tablet

[satur9nine]

I am working on a tablet that has no modem (aka cellular radio) and is not designed to be used for receiving or sending voice calls/SMS/MMS using cdma/gsm/etc. This device does have Wi-Fi connectivity. I wonder if anyone has a complete list of changes that need to be made to the android platform for a devices like this? I am working on Nougat. Here's what I have so far:

• switched my device mk file to point to full_base.mk instead of full_base_telephony.mk
  
• added a overlay/frameworks/base/care/res/res/values/config.xml with config_voice_capable set to false, config_sms_capable set to false, config_telephonyHardware set to an empty string array
• set PRODUCT_CHARACTERISTICS := tablet in my device mk file
• copy tablet_core_hardware.xml to system/etc/permissions instead of handheld_core_hardware.xml

Am I missing anything? What about changes to init rc files?

Some things I noticed are the following modules are still included in the system image: BlockedNumberProvider, Telecom, TeleService, MmsService, TelephonyProvider, voip-common.jar, telecom.jar, telephony-common.jar, ims-common.jar. Even though I have selected the "no telephony" build mk files. Are these modules all needed on a device that doesn't have telephony features? As an experiment I removed the APKs (I haven't tried remove the jars yet) and the device seems to boot and run just fine so it seems they are just wasting resources.

[Joey Troy]

Jacob,

Looks good so far, you will also want to add this in the device.mk

# Disbale Sim Card
PRODUCT_PROPERTY_OVERRIDES += \
	ro.radio.noril=yes

Also in the build/target/product folder you will want to look at the *.mk files and make some edits to remove packages you do not want. You will have some stuff like the following

Telecom \
TeleService \
MmsService \

TelephonyProvider \

most of these can be found in core_base.mk, generic_no_telephone.mk and core.mk. But look them all over, they have pointers starting with full_base.mk and will link you to each file there after.

Good Luck!

Joey

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