himpi-sys

Hi35XX MPI API for Rust unsafe bindings.

Requirements

  1. The target board toolchain must be installed and export to PATH:
  2. The rust target must be installed for target board:
  3. Export MPP_DIR to directory that contains the mpp-lib.
  4. Export SYS_INCLUDE to the directory that contains the system headers.
  5. Export SYS_LIBDIR to the directory that contains the system libraries.

The toolchain and the mpp-lib you can get from the BSP sdk.

Envionment Defaults

Hi3516EV200

The Hi3616EV300、Hi3616EV200、Hi3618EV300 use the same SDK.

sh export PATH=/opt/hisi-linux/x86-arm/arm-himix100-linux/bin:$PATH export MPP_DIR=vendor/mpp-lib-Hi3516EV200_V1.0.1.0 export SYS_INCLUDE=/opt/hisi-linux/x86-arm/arm-himix100-linux/target/usr/include

Hi3519AV100

sh export PATH=/opt/hisi-linux/x86-arm/arm-himix200-linux/bin:$PATH export MPP_DIR=vendor/mpp-lib-Hi3519AV100_V2.0.2.0 export SYS_INCLUDE=/opt/hisi-linux/x86-arm/arm-himix200-linux/target/usr/include

Hi3531V100

sh export PATH=/opt/hisi-linux-nptl/arm-hisiv100-linux/target/bin:$PATH export MPP_DIR=vendor/mpp-lib-Hi3531V100_V1.0.D.0 export SYS_INCLUDE=/opt/hisi-linux-nptl/arm-hisiv100-linux/target/usr/include

Hi3559AV100

sh export PATH=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/bin:$PATH export MPP_DIR=vendor/mpp-lib-Hi3559AV100_V2.0.2.0 export SYS_INCLUDE=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/aarch64-linux-gnu/sys-include

Building

To build the package, you must set cross compile environments first.

There is some preset in .cargo/ can help you fasten setup the cross compile.

Example:

```sh

Setup for Hi3559AV100 boards

cp .cargo/hi3559av100.toml .cargo/config

or for link static libraries

cp .cargo/hi3559av100-static.toml .cargo/config

Build the package ...

cargo b ```

Make sure the hi3559av100 feature is enabled in the Cargo.toml, The hi3559av100 specified the target board, you can change to others, like: hi3531v100 More features see the Cargo.toml.

To build with arm-hisiv100-linux-uclibcgnueabi:

```sh

the nightly toolchain and rust-src must be installed.

rustup override set nightly rustup component add rust-src

the xargo command must be installed.

cargo install xargo

if the above already, that should be work now.

RUSTTARGETPATH=$(pwd) xargo [b|c|r|t] ... ```

if RUSTTARGETPATH not set, the xargo will raise "Error loading target specification..."

Patch bindgen:

The package use a patched bindgen to generate ffi bindings, you must patch the crates.io to replace the bindgen with the patched version.

```toml

Cargo.toml

[patch.crates-io] bindgen = { git = "https://github.com/varphone/rust-bindgen.git", rev = "v0.53.2-sp1" } ```

Examples

```rs use himpisys::{HIMPISYSInit, HIMPISYS_Exit};

fn main() { unsafe { println!("HIMPISYSInit() = {}", HIMPISYSInit()); println!("HIMPISYSExit() = {}", HIMPISYSExit()); } } ```