From bdd4c935a317867469eed5ef9cf7081e9cce10a2 Mon Sep 17 00:00:00 2001 From: Sebastian Hugentobler Date: Mon, 20 May 2024 11:18:17 +0200 Subject: [PATCH] wip display --- .gitignore | 1 + Cargo.toml | 2 +- app/Cargo.toml | 2 +- display/.cargo/config.toml | 8 + display/Cargo.lock | 1042 ++++++++++++++++++++++++++++ display/Cargo.toml | 38 + display/README.md | 12 + display/build.rs | 35 + display/memory.x | 11 + display/src/ble/advertisment.rs | 31 + display/src/ble/battery_service.rs | 5 + display/src/ble/gatt.rs | 24 + display/src/ble/softdevice.rs | 58 ++ display/src/main.rs | 36 + flake.nix | 11 +- rust-toolchain.toml | 5 + 16 files changed, 1317 insertions(+), 4 deletions(-) create mode 100644 display/.cargo/config.toml create mode 100644 display/Cargo.lock create mode 100644 display/Cargo.toml create mode 100644 display/README.md create mode 100644 display/build.rs create mode 100644 display/memory.x create mode 100644 display/src/ble/advertisment.rs create mode 100644 display/src/ble/battery_service.rs create mode 100644 display/src/ble/gatt.rs create mode 100644 display/src/ble/softdevice.rs create mode 100644 display/src/main.rs create mode 100644 rust-toolchain.toml diff --git a/.gitignore b/.gitignore index d9ab711..03c81f8 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,4 @@ target result mosquitto +s140_*_softdevice.hex diff --git a/Cargo.toml b/Cargo.toml index 070c203..a85460b 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -1,7 +1,7 @@ [workspace] resolver = "2" members = [ - "app", "migration", + "app", "migration" ] [workspace.dependencies] diff --git a/app/Cargo.toml b/app/Cargo.toml index 43bb472..20bff53 100644 --- a/app/Cargo.toml +++ b/app/Cargo.toml @@ -10,7 +10,7 @@ ciborium = "0.2.2" clap = { version = "4.5.4", features = ["derive"] } config = "0.14.0" futures = "0.3.30" -itertools = "0.12.1" +itertools = "0.13.0" reqwest = { version = "0.12.4", features = ["json", "rustls-tls"], default-features = false } rumqttc = "0.24.0" 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"time-driver-rtc1", "gpiote", "unstable-pac", "time"] + +[dependencies.embassy-executor] +version = "0.5.0" +git = "https://github.com/embassy-rs/embassy.git" +rev = "3c52ef60b19468a8700d612699c869f0bdcae339" +features = ["task-arena-size-32768", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] + +[dependencies.embassy-time] +version = "0.3.0" +git = "https://github.com/embassy-rs/embassy.git" +rev = "3c52ef60b19468a8700d612699c869f0bdcae339" +features = ["defmt", "defmt-timestamp-uptime"] + +[dependencies.nrf-softdevice] +version = "0.1.0" +git = "https://github.com/embassy-rs/nrf-softdevice.git" +rev = "3c53b8c454cc9331082053033485e713abcadbb5" +features = ["defmt", "ble-peripheral", "ble-central", "critical-section-impl", "ble-gatt-server", "nrf52840", "s140"] + +[dependencies] +defmt = "0.3.6" +defmt-rtt = "0.4.0" + +panic-probe = { version = "0.3.1", features = ["print-defmt"] } + +cortex-m = { version = "0.7.7", features = ["inline-asm"] } +cortex-m-rt = "0.7.4" diff --git a/display/README.md b/display/README.md new file mode 100644 index 0000000..a29dcb6 --- /dev/null +++ b/display/README.md @@ -0,0 +1,12 @@ +The softdevice blob is not distributed with this repository for licensing +reasons (even though it would be possible if my understanding is correct). + +Download the +[S140 Softdevice](https://www.nordicsemi.com/Products/Development-software/s140/download) +and flash it to your chip. + +_Example command to flash the softdevice_ + +``` +probe-rs download --verify --format hex --chip nRF52840_xxAA ./s140_nrf52_7.3.0_softdevice.hex +``` diff --git a/display/build.rs b/display/build.rs new file mode 100644 index 0000000..30691aa --- /dev/null +++ b/display/build.rs @@ -0,0 +1,35 @@ +//! This build script copies the `memory.x` file from the crate root into +//! a directory where the linker can always find it at build time. +//! For many projects this is optional, as the linker always searches the +//! project root directory -- wherever `Cargo.toml` is. However, if you +//! are using a workspace or have a more complicated build setup, this +//! build script becomes required. Additionally, by requesting that +//! Cargo re-run the build script whenever `memory.x` is changed, +//! updating `memory.x` ensures a rebuild of the application with the +//! new memory settings. + +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + // Put `memory.x` in our output directory and ensure it's + // on the linker search path. + let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap()); + File::create(out.join("memory.x")) + .unwrap() + .write_all(include_bytes!("memory.x")) + .unwrap(); + println!("cargo:rustc-link-search={}", out.display()); + + // By default, Cargo will re-run a build script whenever + // any file in the project changes. By specifying `memory.x` + // here, we ensure the build script is only re-run when + // `memory.x` is changed. + println!("cargo:rerun-if-changed=memory.x"); + + println!("cargo:rustc-link-arg-bins=--nmagic"); + println!("cargo:rustc-link-arg-bins=-Tlink.x"); + println!("cargo:rustc-link-arg-bins=-Tdefmt.x"); +} diff --git a/display/memory.x b/display/memory.x new file mode 100644 index 0000000..e999c24 --- /dev/null +++ b/display/memory.x @@ -0,0 +1,11 @@ +MEMORY +{ + /* NOTE 1 K = 1 KiBi = 1024 bytes */ + /* + FLASH : ORIGIN = 0x00000000, LENGTH = 1024K + RAM : ORIGIN = 0x20000000, LENGTH = 256K + */ + + FLASH : ORIGIN = 0x00027000, LENGTH = 868K + RAM : ORIGIN = 0x20007b08, LENGTH = 128K +} diff --git a/display/src/ble/advertisment.rs b/display/src/ble/advertisment.rs new file mode 100644 index 0000000..9db1727 --- /dev/null +++ b/display/src/ble/advertisment.rs @@ -0,0 +1,31 @@ +use defmt::{info, unwrap}; +use nrf_softdevice::ble::advertisement_builder::{ + Flag, LegacyAdvertisementBuilder, LegacyAdvertisementPayload, ServiceList, ServiceUuid16, +}; +use nrf_softdevice::ble::peripheral::ConnectableAdvertisement; +use nrf_softdevice::ble::{peripheral, Connection}; +use nrf_softdevice::Softdevice; + +static SCAN_DATA: LegacyAdvertisementPayload = LegacyAdvertisementBuilder::new() + .services_128( + ServiceList::Complete, + &[0x9e7312e0_2354_11eb_9f10_fbc30a62cf38_u128.to_le_bytes()], + ) + .build(); + +pub async fn run(sd: &Softdevice, device_name: &str) -> Connection { + let config = peripheral::Config::default(); + + let adv_data = LegacyAdvertisementBuilder::new() + .flags(&[Flag::GeneralDiscovery, Flag::LE_Only]) + .services_16(ServiceList::Complete, &[ServiceUuid16::BATTERY]) + .full_name(device_name) + .build(); + + let adv = ConnectableAdvertisement::ScannableUndirected { + adv_data: &adv_data, + scan_data: &SCAN_DATA, + }; + info!("advertising started"); + unwrap!(peripheral::advertise_connectable(sd, adv, &config).await) +} diff --git a/display/src/ble/battery_service.rs b/display/src/ble/battery_service.rs new file mode 100644 index 0000000..fb88877 --- /dev/null +++ b/display/src/ble/battery_service.rs @@ -0,0 +1,5 @@ +#[nrf_softdevice::gatt_service(uuid = "180f")] +pub struct BatteryService { + #[characteristic(uuid = "2a19", read, notify)] + pub battery_level: u8, +} diff --git a/display/src/ble/gatt.rs b/display/src/ble/gatt.rs new file mode 100644 index 0000000..780b27d --- /dev/null +++ b/display/src/ble/gatt.rs @@ -0,0 +1,24 @@ +use crate::ble::battery_service::BatteryService; +use crate::ble::battery_service::BatteryServiceEvent; + +use defmt::info; +use nrf_softdevice::ble::gatt_server; +use nrf_softdevice::ble::Connection; +use nrf_softdevice::ble::DisconnectedError; + +#[nrf_softdevice::gatt_server] +pub struct Server { + pub bas: BatteryService, +} + +pub async fn run(conn: &Connection, server: &Server) -> DisconnectedError { + info!("gatt started"); + gatt_server::run(conn, server, |e| match e { + ServerEvent::Bas(e) => match e { + BatteryServiceEvent::BatteryLevelCccdWrite { notifications } => { + info!("battery notifications: {}", notifications) + } + }, + }) + .await +} diff --git a/display/src/ble/softdevice.rs b/display/src/ble/softdevice.rs new file mode 100644 index 0000000..98a244a --- /dev/null +++ b/display/src/ble/softdevice.rs @@ -0,0 +1,58 @@ +use core::mem; + +use crate::ble::gatt::Server; +use defmt::{info, unwrap}; +use embassy_executor::Spawner; +use nrf_softdevice::{raw, Softdevice}; + +#[embassy_executor::task] +async fn softdevice_task(sd: &'static Softdevice) -> ! { + sd.run().await +} + +fn configure(device_name: &str) -> nrf_softdevice::Config { + nrf_softdevice::Config { + clock: Some(raw::nrf_clock_lf_cfg_t { + source: raw::NRF_CLOCK_LF_SRC_RC as u8, + rc_ctiv: 16, + rc_temp_ctiv: 2, + accuracy: raw::NRF_CLOCK_LF_ACCURACY_500_PPM as u8, + }), + conn_gap: Some(raw::ble_gap_conn_cfg_t { + conn_count: 6, + event_length: 24, + }), + conn_gatt: Some(raw::ble_gatt_conn_cfg_t { att_mtu: 256 }), + gatts_attr_tab_size: Some(raw::ble_gatts_cfg_attr_tab_size_t { + attr_tab_size: raw::BLE_GATTS_ATTR_TAB_SIZE_DEFAULT, + }), + gap_role_count: Some(raw::ble_gap_cfg_role_count_t { + adv_set_count: 1, + periph_role_count: 3, + central_role_count: 3, + central_sec_count: 0, + _bitfield_1: raw::ble_gap_cfg_role_count_t::new_bitfield_1(0), + }), + gap_device_name: Some(raw::ble_gap_cfg_device_name_t { + p_value: device_name.as_bytes().as_ptr() as *const u8 as _, + current_len: 9, + max_len: 9, + write_perm: unsafe { mem::zeroed() }, + _bitfield_1: raw::ble_gap_cfg_device_name_t::new_bitfield_1( + raw::BLE_GATTS_VLOC_STACK as u8, + ), + }), + ..Default::default() + } +} + +pub fn run<'a>(spawner: Spawner, device_name: &str) -> (&'a Softdevice, Server) { + let config = configure(device_name); + + let sd = Softdevice::enable(&config); + let server = unwrap!(Server::new(sd)); + unwrap!(spawner.spawn(softdevice_task(sd))); + info!("softdevice started"); + + (sd, server) +} diff --git a/display/src/main.rs b/display/src/main.rs new file mode 100644 index 0000000..ee654b8 --- /dev/null +++ b/display/src/main.rs @@ -0,0 +1,36 @@ +#![no_std] +#![no_main] + +use ble::gatt::Server; +use defmt_rtt as _; +use embassy_nrf as _; +use nrf_softdevice::Softdevice; +use panic_probe as _; + +use defmt::{info, unwrap}; +use embassy_executor::Spawner; + +pub mod ble { + pub mod advertisment; + pub mod battery_service; + pub mod gatt; + pub mod softdevice; +} + +const DEVICE_NAME: &str = "alert-me display"; + +#[embassy_executor::task] +async fn ble(spawner: Spawner) { + let (sd, server) = ble::softdevice::run(spawner, DEVICE_NAME); + + loop { + let conn = ble::advertisment::run(sd, DEVICE_NAME).await; + let error = ble::gatt::run(&conn, &server).await; + info!("gatt_server run exited with error: {:?}", error); + } +} + +#[embassy_executor::main] +async fn main(spawner: Spawner) { + unwrap!(spawner.spawn(ble(spawner))); +} diff --git a/flake.nix b/flake.nix index 930ed88..f46c6b9 100644 --- a/flake.nix +++ b/flake.nix @@ -69,16 +69,23 @@ system: let pkgs = import nixpkgs { inherit system; }; - rust = fenix.packages.${system}.stable; + # rust = fenix.packages.${system}.stable; + rust = + with fenix.packages.${system}; + fromToolchainFile { + file = ./rust-toolchain.toml; + sha256 = "sha256-iUnN1Tn3SDUo5JvS1QZjjvA2adh7URLeQyXnQHYjCik="; + }; in with pkgs; { devShells.default = mkShell { buildInputs = [ mosquitto - rust.toolchain + rust rust-analyzer sea-orm-cli + probe-rs ]; }; } diff --git a/rust-toolchain.toml b/rust-toolchain.toml new file mode 100644 index 0000000..f500976 --- /dev/null +++ b/rust-toolchain.toml @@ -0,0 +1,5 @@ +[toolchain] +channel = "nightly" +components = [ "rustfmt" ] +targets = [ "thumbv7em-none-eabi", "thumbv7em-none-eabihf" ] +profile = "minimal"