AM5728: Regarding LCD and USB HALs

Vishal,

TI Android SDK is forked from AOSP 

How we make the manifest ? you can find it here for AM5

https://git.ti.com/cgit/android/manifest/tree/default.xml?h=pie-core-release 

as you can see at : https://git.ti.com/cgit/android/manifest/tree/default.xml?h=pie-core-release#n4 

almost all  non device projects are from AOSP ( so the project/directory structure is same as AOSP)

as you can see at : https://git.ti.com/cgit/android/manifest/tree/default.xml?h=pie-core-release#n708 

for AM57x the projects are forked to carry additional device and EVM specific fixes which are not in AOSP

on LCD :

Assuming are you are talking about the display/HWC HAL

it is at : https://git.ti.com/cgit/android/hardware-ti-am57x/tree/libhwcomposer?h=d-pie-core-release 

you might also like to look at device configuration

Ref: https://git.ti.com/cgit/android/device-ti-beagle-x15/tree/?h=d-pie-core-release 

(This is where we configure USB Ex: for ADB gadget mode)

on Camera:

The current android release doesnt support camera HAL. But, can provide you some pointers..

you can find some recommendations that will help in developing 

Ref : https://e2e.ti.com/support/processors/f/791/p/681672/2532345 

source.android.com and device/evm/* +hardware/soc/* from AOSP are good reference points where you can see opensource implementations of other camera HAL and write your own.( need not start from scratch)