[WIP][ROM][6.0] Nexus 7 Marshmallow - Android 6.0

[Motorhead1991]

It was bound to happen, so here it is. The Grouper running Android 6.0!

What works:
- WiFi
- display
- audio
- Bluetooth (partially)
- Multiwindow
- Auto-rotate

What's broken:
- OTG
- surfaceflinger*

What's untested:
- camera
- NFC

I will not offer a ROM zip at this point due to the fact that the rootfs is inherently insecure for the time being. However, the sources are available below and should be bootable.




Sources:
http://github.com/Grouper-aosp

CREDITS:
@dolorespark - ramdisk fixes, sepolicy fix (3.1 compatible)
@Ziyan - kernel work and device tree
@GtrCraft - device tree help, testing and support

 

[Motorhead1991]

I highly encourage the use of the stock 3.1 kernel. I've modified sepolicy to allow old kernels to run.

 

[NalNalas]

sweet

also, you didn't include Wifi in the what works or doesn't so I'll assume it dues because of the screenshots

 

[Trafalgar Square]

Wow

 

[TheXorg]

what does it mean, broken surfaceflinger*?

 

[Wish39]

Thanks dude! Will try to flash when rom is linked and when I can access my Nexus 7!

 

[Motorhead1991]

what does it mean, broken surfaceflinger*?

For some reason, surfaceflinger isn't looking in the /system for the GPU binaries. To bypass this I had to symlink them to the rootfs.

 

[itskapil]

Wow. Though, it would be great if anyone -- or the OP -- could cook the ROM and share the link. Looks good enough.

 

[Motorhead1991]

Wow. Though, it would be great if anyone -- or the OP -- could cook the ROM and share the link. Looks good enough.

A link will be posted as soon as we fix Surfaceflinger and a couple bugs in the 3.4 kernel.

 

[itskapil]

@Motorhead1991 thanks a lot for the heads up! Waiting patiently.. pls tag once it's up. :good:

 

[dmitrygr]

Having done this already, let me add:

most likely also you have gps broken, and nfc broken
i am guessing selinux is also not doing all it should



also the issue is not with surfaceflinger (that is just the symptom)

 

[zosimov21]

I was hoping someone could port 6.0 to this device. Waiting for the OP to show ready to rock and roll !

 

[2012katas]

@Motorhead1991 awesome work @dmitrygr saw a reddit post where you said you are working on nexus 7.... patiently waiting for it after trying your nexus 4 build

 

[Motorhead1991]

@Motorhead1991 awesome work @dmitrygr saw a reddit post where you said you are working on nexus 7.... patiently waiting for it after trying your nexus 4 build

Other way around, friend . @dmitrygr did the N4. I started on the N7 (2012) myself and received assistance from him and others .

 

[Chewy]

Excellent work! I'll be watching this with interest.

 

[everesee]

Thanks! I'm waiting for your release

Camera, NFC and OTG is not important for me right now.

 

[Ziyan]

Having done this already, let me add:

most likely also you have gps broken, and nfc broken
i am guessing selinux is also not doing all it should



also the issue is not with surfaceflinger (that is just the symptom)

For NFC, we need to revert this commit - adding it to the device tree is way too problematic, and this shouldn't cause problems for other devices anyways....
For SELinux on 3.1, we need these commits, and we need to remove three recovery-related neverallowed rules from the device tree (not a huge deal really) - these commits are already included in my 3.4 kernel (thanks to the android-3.4 merge), but it's not ready to be shipped... posting a screenshot of M running with 3.4 was a mistake.
For EGL, I use this workaround, which fixes that particular problem without modifying the system libraries - it would be really nice if you knew another, nicer solution, also without modifying the system libraries

Right now, GPS, camera and audio is broken (thought audio might be broken because of camera - I experienced similar symptoms while working on 3.4).

 

[Kevinjoa]

Having done this already, let me add:

most likely also you have gps broken, and nfc broken
i am guessing selinux is also not doing all it should



also the issue is not with surfaceflinger (that is just the symptom)

The NFC propably needs the NXP NFC stack which had been dsiabled building by google and can be reverted: https://gerrit.omnirom.org/#/c/14956/
My Optimus G needed relocations for the nfc hardware lib, but I think it might be not needed, anyway this is hacky change to make relocations warnings again: https://gerrit.omnirom.org/#/c/14955/

 

[Motorhead1991]

For NFC, we need to revert this commit - adding it to the device tree is way too problematic, and this shouldn't cause problems for other devices anyways....
For SELinux on 3.1, we need these commits, and we need to remove three recovery-related neverallowed rules from the device tree (not a huge deal really) - these commits are already included in my 3.4 kernel (thanks to the android-3.4 merge), but it's not ready to be shipped... posting a screenshot of M running with 3.4 was a mistake.
For EGL, I use this workaround, which fixes that particular problem without modifying the system libraries - it would be really nice if you knew another, nicer solution, also without modifying the system libraries

Right now, GPS, camera and audio is broken (thought audio might be broken because of camera - I experienced similar symptoms while working on 3.4).

In hindsight, yeah showcasing 3.4 was jumping the gun a little bit. I just got ahead of myself and wanted to bring hope to people that still use such an "old" device.

 

[Ziyan]

Update: I was able to fix gps in a similar way. Also, it seems like 3.1 + M isn't going to play together (serious memory management issues), so I had to switch back to 3.4 (me and @sheffzor are working on 3.4 day and night). So, only camera and audio remains