lupyuen opened a new pull request, #7944: URL: https://github.com/apache/nuttx/pull/7944
## Summary This PR adds the driver for Display Engine 2.0 on Allwinner A64 SoC. The Display Engine Driver will be called by the upcoming LCD Driver for PINE64 PinePhone. ### Modified Files `arch/arm64/src/a64/Kconfig`: Added the Kconfig option for "A64 Peripheral Selection > DE" (`CONFIG_A64_DE`), which enables the Display Engine Driver `arch/arm64/src/a64/hardware/a64_memorymap.h`: Added the Base Address for Display Engine `arch/arm64/src/a64/Make.defs`: Added the Display Engine Driver to the Makefile `boards/arm64/a64/pinephone/configs/nsh/defconfig`: Removed Scheduler Debug Info (`CONFIG_DEBUG_SCHED_INFO`) from the PinePhone Board Config, because it garbles the Console Output. ### New Files `arch/arm64/src/a64/a64_de.c`, `a64_de.h`: Display Engine Driver for Allwinner A64 ### Updated Documentation `platforms/arm/a64/boards/pinephone/index.rst`: Added Display Engine as supported peripheral for PinePhone ## Impact Our Display Engine Driver will be built only when we select the Kconfig option for "A64 Peripheral Selection > DE" (`CONFIG_A64_DE`). The Display Driver will be called by the upcoming LCD Driver for PinePhone. Our Display Engine Driver has no impact on existing code because it's not called yet by the existing code. The Driver Code is derived from my Reverse-Engineering of the PinePhone Display Driver, based on the logs captured from the PinePhone p-boot Bootloader: - ["Rendering PinePhone's Display (DE and TCON0)"](https://lupyuen.github.io/articles/de) - ["NuttX RTOS for PinePhone: Render Graphics in Zig"](https://lupyuen.github.io/articles/de2) ## Testing We tested the Display Engine Driver with a Zig Test Program [as explained here](https://github.com/lupyuen/pinephone-nuttx#test-display-engine-driver-for-nuttx-kernel). Our Zig Test Program renders the [Test Pattern](https://lupyuen.github.io/images/de3-title.jpg) successfully on PinePhone. Here's the Test Log, with Graphics Logging Enabled... - [NuttX Kernel Display Engine Test Log](https://gist.github.com/lupyuen/f76ec0bcafce670220ab304a70c28fab) We also tested with Graphics Logging Disabled, to preempt any timing issues... - [NuttX Kernel Display Engine Test Log (Graphics Logging Disabled)](https://gist.github.com/lupyuen/ff133730c07730cb3b588a5027e7f524) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
