Thursday, November 24, 2016

NEW BUILD! Beanstalk 6 for the Huawei P9 Lite

So, here it is, Beanstalk 6 for the Huawei P9 lite. This ROM has all the extras that any ROM ever had and then some. I think your going to like it.

NOTE: Fingerprint enrollment does not seem to work BUT if you dirty flash this over CM13, your already enrolled fingerprints will work! 

Install like this:
  1. Install cm13 and enroll your fingerprints (if you have not already).
  2. Uninstall any themes and go back to stock theme ( if you already had cm13 installed ).
  3. Flash Beanstalk 6 (Don't wipe anything... just flash and reboot).
  4. Reinstall your themes
  5. Profit
Happy Thanksgiving!

Download: here

Please do not mirror or re-post my files! Link to this page!

Thursday, November 17, 2016

NEW BUILD! CyanogenMod 13 for the Huawei P9 Lite

From day 1 we have been operating without a hwcomposer. We have also been experiencing a lot of minor graphical type issues and everyone ( and I mean everyone ) assumed that it was because of the missing hwcomposer. Well, I learned long ago that just because "A" precedes "B" doesn't mean that "A" causes "B". I knew that the hwcomposer was insignificant because codinalte runs just fine without one and I did a little experiment. I deleted the hwcomposer on stock and rebooted. Guess what? It ran just fine! There was absolutely no change in the way Stock operated visually that I could detect. So the question remained, "What is causing these minor graphical issues?"

So, finally, since everyone assumed it was the hwcomposer, I thought I'd write one. I personally thought there might be a problem with vertical synchronization and the hwcomposer (can) be responsible for that, but during my debugging, I noticed that the default number of surface buffers in surfaceflinger was 2. In the back of my mind I already knew this and 2 buffers has always been enough for my previous devices but something made me decide to experiment with it. So, I bumped it up to 6. Then I tested. I must say that the graphical glitching was plaguing me. I tried so many different things to try to get it fixed and every time, I thought, "It's fixed!"; Boom it would happen again. So, I kept expecting it to happen again but it never did! All it took was bumping the surface buffers to 6. Not really hwcomposer related at all. I'm so glad I took my time and followed my instincts.

Since that was fixed I buttoned up the hwcomposer that I wrote and it works just fine. I'm uncertain about the vsync implementation. When enabled, surfaceflinger quickly decides that it's not needed and turns it off and indeed, it may not be needed because visually, everthing looks awesome.

This build also has a new opensource power HAL that I wrote. I must say that I'm quite happy with the results but it's effectiveness will depend on usage. Please let me know about your "battery life" experiences. Is it better/worse than before? Is it better/worse than stock?

Battery modes now available in Settings.

Wifi/BT off, 2g no data, balanced power profile, no gapps

Wifi/BT off, 2g no data, balanced power profile, no gapps

I also had a chance to test A2DP and for me it's working perfectly.

I also fixed Screencast and no, the issue is not related to hwcomposer. It was a media codecs issue. Our hw stagefright codecs do not play nice with standard color formats. So, I just modified the "/etc/media_codecs.xml to prefer google codecs over our hw codecs.

Download and more details on the download page as always.

Thursday, November 10, 2016

NEW BUILD! CyanogenMod 13 for the Huawei P9 Lite...

Camera and GPS are the big two that are left. There are also some smaller issues and some might say, "Hey what about the gyroscope." Well, further research has revealed that there is no "hardware" gyroscope. Huawei has some sort of emulated gyroscope on stock. As I have been saying for awhile now, it is my intention to create a standard sensors library and perhaps at that time, I can figure out how to "emulate" gyroscope data using data from the existing sensors but for now, it goes to the back burner. NFC also needs attention but not a high priority.

In this build, I've implemented some, rather hacky, fixes to prop up the Camera. Personally, I don't like these hacks but for now, they make the camera much more use-able. The issues with the camera are 2 fold. Fold 1, perfhub. Perfhub is a daemon that the Camera daemon "HwCamCfgSvr" communicates with for "copybit" operations. Both of these daemons are proprietary blobs and getting in the middle of them to correct issues is difficult. Perfhub often crashes when attempting to close copybit. Closing copybit happens when switching between the back and front camera, closing the camera, after photosnaps; at the end of almost all camera operations. First I tried to reverse shim the function that crashes. The result was pretty good. The camera was stable. Photo-snap worked on both cameras but video recording did not. So, it was an improvement and it was clean ( no crashing ) but, no video recording. So, then I thought well, if perfhub is going to crash, init is going to automatically restart it because its a non-oneshot service. So why doesn't the camera work after perfhub restarts? Well, it seems that communication between perhub, media, and HwCamCfgSvr is broken and does not reinitialize if just perfhub is restarted. Solution: restart them all if perfhub restarts. It's not the best solution but it sorta works. Hopefully, I'll come up with something better soon. Fold 2: copybit operations parameters seem to be off at high resolutions. Miraculously, copybit does not fail at high resolutions, but it creates an image that is the wrong resolution and a much lower resolution. I'm not quite sure why this happens.

I've also added a bunch of minor fixes and features. Check the download page for a complete list.

Download available on the download page as always...

Thursday, November 3, 2016

NEW BUILD! CyanogenMod 13 for Hauwei P9 Lite

Since I got my laptop back up and running, I started looking at offline charging. It's something that should be fairly easy because I've worked on it for several other devices. Booting into charging mode mode is not really that different from booting normally. Init just chooses to initialize somethings and not others when in this mode. The problem with charging mode was that it did not show anything on the screen and it eventually rebooted to recovery. So, just like with the initial bring up, my first task was to get adb working but with so many init scripts it was difficult to tell just what things got initialized on "charging" mode vs "normal" mode. I decided to implement an "lpm.rc" to simply diagnostics.

After that was done and I got adb working, I was left with a "charging" mode that was just a blank screen but at least there were no "reboots to recovery". It just sat there happy and blank. After some poking around I noticed that the framebuffer did not have a "mode" set so I wrote the only mode available to /sys/devices/virtual/graphics/fb0/mode and BAM! the charging screen came on!

Then I turned my attention to fingerprint sensor. My first idea was to push the fingerprintd from CM on to stock and see if it would still work. It did, so I added a bunch of diagnostic code to CM's fingerprintd and pushed it on stock and watched the logs. Then I pushed put it on CM and too and watched the logs... Nothing. After thinking about if for a while I realized that fingerprint is a "security" device and there were parts of security that were still broken; the hw keymaster! I remembered thinking that the hw keymaster might not be so hard to fix and it wasn't. It turns out that it just does not support RSA for encryption and decryption and after removing attempts to add RSA for those "2" purposes, the keymaster was online and working; and so was fingerprint!

So, in this build:

  1. Offline Charging fixed.
  2. Fingerprint fixed.
  3. Sdcard detection fixed.
  4. Experimental graphics property tweaks.


Download available in the downloads section as always...

Tuesday, November 1, 2016

TWRP 3.0.2-0 for Huawei P9 Lite

Why build another TWRP when we do have one that works? Well, my cm builds do not currently support encryption and stock forces encryption on us with a key that no one knows. This makes the installation of CM a bit complicated and once CM is flashed the TWRP that we are using can not mount /data any more. So, got this idea for a TWRP that could switch everything based on what ROM was installed. I've been working on it for a while now and it ready to be released.

On Stock
On CyanogenMod

This TWRP has a few advantages over the one that we are currently using:

  1. The brightness slider works
  2. Battery percentage is reported at top right.
  3. English is the default languages with support for many more.
  4. TWRP settings are stored in /cust so they are preserved across /data wipes.
  5. Compatible with my Cyanogenmod 13 builds.
  6. USB Host mode switches.
Download available in the download section.

P.S. If it wasn't obvious with this post, I have gotten my laptop repaired and it seems to be running very well.