Fulup-README

#ti-am62x-binding

Provides:

* Rust binding to Pionix [ti-am62x-evse-sdk](https://github.com/PionixPublic/ti-am62x-evse-sdk)
* afb-binding micro service architecture and security model [api-v4](https://github.com/redpesk-common/afb-librust/blob/master/docs/1-architecture_presentation.md)


## Reference

https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/latest/exports/docs/linux/Foundational_Components_IPC64x.html

## Dependencies:

* C/lib ti_rpmsg_char: git://git.ti.com/rpmsg/ti-rpmsg-char.git
* C compiler for build.rs code generation
* protobuf-compiler: dnf install protobuf-compiler (for OpenSuse check [1])

Warning: work under heavy development

* expect afbv4 to be installed in $Project/../Rust with (Fulup-Dev) branch

[1] OpenSuSE note:

SuSE uses a custom name for protobuf package and binary, and because of protoc execution model a symbolic link cannot do the job
 * zipper install protobuf-c
 * in your environment add ```export  PROTOC=/usr/bin/protoc-c```  (warning: a link cannot do the job)

## config

```bash
  "binding": [
    {
        // binding name
        "uid": "ti-am62x",
        "info": "Ti MCU(am62x) native desktop debug API",

        // afbv4 api name
        "api": "tiam62x",

        // binding path
        "path": "$HOME/.cargo/build/debug/libafb_tiam62x.so",

        // default value for rpmsg (should match firmware configuration)
        "cdev": "rpmsg_chrdev",
        "eptname": "rpmsg_tuxevse",
        "rport": 14,

        // heartbeat tic value in ms
        "tic": 1000
    }
  ]
```

## list platform devices

```bash
 ls -l /sys/bus/platform/devices | grep m4
```

## list virtio devices

```bash
 ls -l /sys/bus/virtio/devices | grep m4
```

## list control device

```bash
ls -l /sys/bus/rpmsg/drivers/rpmsg_chrdev/virtio* | grep m4
```

## debug

## rpmsg_char_simple

## check journal

journalctl | grep virtio => addr==epnum

## check PID waiting on remote proc

```bash
cat /sys/kernel/debug/remoteproc/remoteproc0/trace0
lsof /dev/rpmsg0 # recuperer le PID
ls -l /proc/PID/fd/* | grep rpmsg
```

## check firmware loaded on rproc0

```bash
cat /sys/class/remoteproc/remoteproc0/firmware
```

## WARNING:

* send tiam62x/pwm=off to move CP from -12 to +12
* send tiam62x/iec6185=true to enable device protobuf firmware event push

## Firmware log trace
M4 console is visible on TI second console (usually ttyUSB1)
```
# use shift+ctr+A,X to exit
picocom -b 115200 /dev/ttyUSB1
```

## remote wireshark
```
ssh root@phytec-power "tcpdump -s0 -U -n -w - -i eth2 " | wireshark -i -
```