Marijn Suijten’s projects

Contributions to Sony Open Devices

Selected twice as Hero Open Source Developer by Sony Mobile, once in February of 2019 and once in April 2020.

Created SonyOpenTelephony and contributed significantly to the TransPower SAR compliance utility, which is used both in OSS and closed-source builds of Sony phones.

Research and an open source HAL implementation for the egistec fingerprint sensor, enabling the Nile series of devices to use fingerprint authentication

• device-sony-tama: platform: Enable graphics allocator and mapper v3
• device-sony-common: Add manifests and packages for graphics allocator/mapper v3.0
• device-sony-tama: WCNSS: Enable concurrent STA/AP on wlan1 interface
• device-sony-tama: overlay: configure camera lift trigger sensor
• device-sony-tone: audio_platform_info: Disable ACDB for OUT_BT_SCO
• QcRilAm: Android.bp: Remove unused proguard files
• QcRilAm: [1/2] Drop private_apis access and convert to use public SDK interfaces
• device-sony-sepolicy: [2/2] QcRilAm: Grant access to isub (radio_service) for sim information
• device-sony-common: [o-mr1] sensors: Remove /data dependencies for earlier start
• device-sony-kumano: overlay: configure camera lift trigger sensor

Collaboration with developers from all around the world, with highly technical English.

Fingerprint HAL & reverse engineering

Contributions to the SODP fingerprint HAL.

• egistec: nile: New stock firmware now uses the Ganges HAL
• Egistec: Nile: Fix missed comparison of different signs
• ion_buffer: Implement with backwards-compatible libion
• yoshino: Disable fingerprint gestures
• Reviewed "BiometricsFingerprint: uinput: fall back to write on older kernels"

Fingerprint navigation gestures

Contributions to allow using the fingerprint scanner for Android's navigation gestures like the Google Pixel devices do, e.g. pulling down the QuickSettings/notification bar via swiping down.

Reverse-engineered the Google Pixel implementation and adapted for Sony devices.

• vendor-sony-oss-fingerprint: Fingerprint gestures!
• device-sony-tama: Enable FPC gestures
• device-sony-sepolicy: hal_fingerprint_default: Allow emitting events to uinput

Sony Kernel Improvements

Contributions to the SODP kernel.

• [2.3.2.r1.4] Support TCM incell touch displays on Apollo and Akari
• [2.3.2.r1.4] Add missing COLOR_FMT_NV12_512
• [7.1.r1] Add missing QSEECOM TA Heaps to SDM630/SDM660/MSM8996
• [2.3.2.r1.4] TCM/Clearpad: Fix probe, replace broken ifdefs with DT property
• [LA.UM.7.1.r1] msm_audio_calibration: Enable TOPOLOGY SPECIFIC CHANNEL INFO for SM8150
• [7.1.r1] Import NFC PN553 driver for Kumano
• [LA.UM.7.1.r1] cp_headers: Add VIDC 3X media/msm_vidc.h header
• [LA.UM.7.1.r1] sdm660 analog cdc: Shorten cdc-vdd-mic-bias supply name

Android 10 bringup

Contributions to Sony Open Devices, to make compatible with the Android 10 release.

• device-sony-common: Welcome Android Q!
• device-sony-common: New-style bootctrl & bdroid_buildcfg
• TransmitPower: Telephony: Do not instantiate PhoneStateListener with subId
• ExtendedSettings: getBuiltInDisplay is deprecated and removed

HAL adaptations & improvements

Improving the hardware-interfacing components of SODP.

• device-sony-common: lights: Adjust slightly off brightness conversion for maximum accuracy
• hardware-qcom-media: mm-video-v4l2: vdec: Fix non-subscripted values in misr_info
• hardware-qcom-media: mm-video-v4l2: vdec: Add fallback to old MISR_INFO for sdm845 and below
• hardware-qcom-media: [LA.UM.8.1.r1] Port 7.1 commits to 8.1 branch
• vendor-qcom-opensource-commonsys-intf-display: [LA.UM.7.1.r1] Add soong plugin to switch Gralloc1 in BluePrint build files
• vendor-qcom-opensource-camera: QCamera2: Define VANILLA_HAL definition regardless of multicam support
• timekeep: Ensure ats_2 file is always 8 bytes

SonyOpenTelephony

A framework for interacting with OEM telephony functions

Available at GitHub.

TransmitPower

A SAR compliance tool. Improved and kept compatibility with new Android versions.

• Convert to AndroidX
• Switch to public SDK components
• Convert all makefiles to BluePrint
• Make SDK-28 compliant, use HookMediator for qcrild

Makefile & build system improvements

Contributions to Sony Open Devices.

• device-sony-common: Move PRODUCT_DEXPREOPT_SPEED_APPS to common.mk
• device-sony-common: CommonConfig: Set VENDOR_SECURITY_PATCH for new Keymasters
• local_manifests: qcom: Switch display interfaces and HAL to LA.UM.8.1.r1 codebase
• bug_tracker: bug_report: Request information about previously working version
• vendor-qcom-opensource-core-utils: Namespace SODP core-utils repo

SELinux policy

Contributions to sepolicy for SODP.

• device-sony-sepolicy: All commits by MarijnS95
• ild: Label and start data.iwlan::IIWlan service

Out-of-tree Kernel build scripts

Available at GitHub.

These scripts build the Sony Open Devices kernel outside of the tree and generate a boot.img as well as a dtbo.img. It saves a tremendous amount of time since the AOSP build system easily takes 15-20 seconds to read makefiles, decides it doesn't need to regenerate them, call mkbootimg and deliver the boot.img. Calling this tool outside of the build results in much quicker iteration.

Lighthouse 2 framework for real-time ray tracing

Fork available here

JS-Patchtracer

Demo available here.

Source: JS-Pathtracer.

AOSP contributions

Contributions to the Android Open Source Project, which is led by Google.

• system/extras: verity: Do not increment data when it is nullptr.

Miscellaneous contributions

Things that do not fit anywhere else

• FreePIE: Updated vJoy DLL's to v2.1.8b38
• Nitrox: Reviewed "Added PlayerID saving to fix Inventory loading"
• opengapps/aosp_build: opengapps-packages: Re-add webview device overlay, use device overlay
• opengapps/aosp_build: modules: Load TrichromeLibrary module only on API >=29