[PR] risc-v/ox64: Add LED Driver [nuttx]

["rushabhvg (via GitHub)" <gi...@apache.org>]

rushabhvg opened a new pull request, #12614:
URL: https://github.com/apache/nuttx/pull/12614

   ## Summary
   - This PR adds the LED Driver for Ox64 Board (User LEDs and Auto LEDs)
   - Ox64 LED Driver will be used by the Rust Blinky App for Google Summer of Code
   - User LED 1 is configured for GPIO 29. Other User LEDs and Auto LEDs shall be configured by the NuttX Dev.
   - The code is derived from NuttX PinePhone LED Driver
   
   ## Modified Files in boards:
   - `Kconfig`: Added ARCH_HAVE_LEDS for Ox64
   
   ## Modified Files in boards/risc-v/bl808/ox64:
   - `configs/nsh/defconfig`: Added CONFIG_USERLED
   - `include/board.h`: Added LED Definitions
   
   ## Modified Files in boards/risc-v/bl808/ox64/src:
   - `Makefile`: Added source files for User LEDs and Auto LEDs
   - `bl808_appinit.c`: Init User LEDs at startup
   
   ## Added Files in boards/risc-v/bl808/ox64/src:
   - `bl808_autoleds.c`: Ox64 Driver for Auto LEDs
   - `bl808_userleds.c`: Ox64 Driver for User LEDs
   
   ## Impact
   - With this PR, NuttX for Ox64 will be able to access LEDs
   - No impact on existing code, since the Ox64 LED Driver source files are not used by existing code
   
   ## Testing
   We tested the BL808 Driver on Ox64 Emulator. Rust Blinky blinks the Simulated LED correctly:
   - [Test Log for Ox64 Emulator](https://github.com/rushabhvg/rushabhvg.github.io/blob/master/nuttx/GPIO%20and%20LED%20Driver/build%20log%203ee5f0c36d.txt)
   - [Test Log for Ox64 board](https://gist.github.com/lupyuen/37a271f3d4f71a9f1e2fde2ec9f625e0) 
   - [Source Files](https://github.com/rushabhvg/nuttx/tree/gpio3)
   - [Rust Blinky](https://github.com/rushabhvg/nuttx-apps/blob/gpio/examples/hello_rust/hello_rust_main.rs)
   - [Demo Video](https://drive.google.com/file/d/1Fm6HkLVFNpiEd0EMGnQw05mYtlPyf5wJ/view?usp=drive_link)
   
   ```text
   $ tools/configure.sh ox64:nsh
   $ make
   ## Omitted: Build NuttX Apps and bundle into NuttX Image
   $ ./temu nuttx.cfg
   TinyEMU Emulator for Ox64 BL808 RISC-V SBC
   NuttShell (NSH)
   nsh> nx_start: CPU0: Beginning Idle Loop
   
   nsh> uname -a
   NuttX 0.0.0 3ee5f0c36d Jul  2 2024 20:25:48 risc-v ox64
   
   nsh> hello_rust
   nxtask_activate: hello_rust pid=4,TCB=0x5040b290
   nxsig_tcbdispatch: TCB=0x5040b290 pid=4 signo=0 code=0 value=0 masked=NO
   Hello, Rust!!
   Opening /dev/userleds
   Set LED 0 to 1
   {"nuttxemu":{"gpio29":1}}
   Waiting...
   Set LED 0 to 0
   {"nuttxemu":{"gpio29":0}}
   nxsig_tcbdispatch: TCB=0x5040af80 pid=3 signo=17 code=5 value=0 masked=NO
   nxtask_exit: hello_rust pid=4,TCB=0x5040b290
   nxsig_tcbdispatch: TCB=0x5040af80 pid=3 signo=17 code=5 value=0 masked=NO
   nsh> virtio_console_resize_event
   Terminated
   ```
   


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Re: [PR] risc-v/ox64: Add LED Driver [nuttx]

["xiaoxiang781216 (via GitHub)" <gi...@apache.org>]

xiaoxiang781216 merged PR #12614:
URL: https://github.com/apache/nuttx/pull/12614


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