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Author SHA1 Message Date
fd8f28ef33 WIP: Enable BLE
TODO: Receive from BLE
2026-08-05 17:10:55 +02:00
8 changed files with 741 additions and 10 deletions

183
Cargo.lock generated
View file

@ -166,6 +166,29 @@ dependencies = [
"generic-array",
]
[[package]]
name = "bt-hci"
version = "0.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "211713d2e9fb4793ce4360a712c0764264aff6be48932ccf02ca2a331c0436a9"
dependencies = [
"btuuid",
"embassy-sync 0.8.0",
"embedded-io 0.7.1",
"embedded-io-async 0.7.0",
"futures-intrusive",
"heapless 0.9.2",
]
[[package]]
name = "btuuid"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f5f48f1e9b0aad0a4f05d17bdeae0fa20ff798e272a03a6940ca27ad9c5a6ae7"
dependencies = [
"uuid",
]
[[package]]
name = "bumpalo"
version = "3.20.2"
@ -244,6 +267,15 @@ version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0b396d1f76d455557e1218ec8066ae14bba60b4b36ecd55577ba979f5db7ecaa"
[[package]]
name = "convert_case"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baaaa0ecca5b51987b9423ccdc971514dd8b0bb7b4060b983d3664dad3f1f89f"
dependencies = [
"unicode-segmentation",
]
[[package]]
name = "cordyceps"
version = "0.3.4"
@ -956,6 +988,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "23fbff98b06a96b6ce3791ecec5c668524052a068e23aacd23afe17ddba844ce"
dependencies = [
"allocator-api2",
"bt-hci",
"cfg-if",
"docsplay",
"document-features",
@ -1152,11 +1185,14 @@ name = "esp32-c_its-companion"
version = "0.1.0"
dependencies = [
"assert_float_eq",
"bt-hci",
"c-its-parser",
"chrono",
"critical-section",
"crossbeam-queue",
"embassy-executor",
"embassy-futures",
"embassy-sync 0.7.2",
"embassy-time",
"embassy_gps",
"embedded-graphics",
@ -1179,6 +1215,8 @@ dependencies = [
"profont",
"prost",
"prost-build",
"static_cell",
"trouble-host",
"ublox",
]
@ -1320,12 +1358,52 @@ version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
[[package]]
name = "futures"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8b147ee9d1f6d097cef9ce628cd2ee62288d963e16fb287bd9286455b241382d"
dependencies = [
"futures-channel",
"futures-core",
"futures-io",
"futures-sink",
"futures-task",
"futures-util",
]
[[package]]
name = "futures-channel"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "07bbe89c50d7a535e539b8c17bc0b49bdb77747034daa8087407d655f3f7cc1d"
dependencies = [
"futures-core",
"futures-sink",
]
[[package]]
name = "futures-core"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
[[package]]
name = "futures-intrusive"
version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d930c203dd0b6ff06e0201a4a2fe9149b43c684fd4420555b26d21b1a02956f"
dependencies = [
"futures-core",
"lock_api",
]
[[package]]
name = "futures-io"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cecba35d7ad927e23624b22ad55235f2239cfa44fd10428eecbeba6d6a717718"
[[package]]
name = "futures-sink"
version = "0.3.32"
@ -1345,8 +1423,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "389ca41296e6190b48053de0321d02a77f32f8a5d2461dd38762c0593805c6d6"
dependencies = [
"futures-core",
"futures-sink",
"futures-task",
"pin-project-lite",
"slab",
]
[[package]]
@ -1561,6 +1641,18 @@ dependencies = [
"syn 2.0.117",
]
[[package]]
name = "js-sys"
version = "0.3.98"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67df7112613f8bfd9150013a0314e196f4800d3201ae742489d999db2f979f08"
dependencies = [
"cfg-if",
"futures-util",
"once_cell",
"wasm-bindgen",
]
[[package]]
name = "lazy_static"
version = "1.5.0"
@ -1603,6 +1695,15 @@ version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "11d3d7f243d5c5a8b9bb5d6dd2b1602c0cb0b9db1621bafc7ed66e35ff9fe092"
[[package]]
name = "lock_api"
version = "0.4.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "224399e74b87b5f3557511d98dff8b14089b3dadafcab6bb93eab67d3aace965"
dependencies = [
"scopeguard",
]
[[package]]
name = "log"
version = "0.4.29"
@ -2184,6 +2285,12 @@ version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
[[package]]
name = "scopeguard"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
[[package]]
name = "semver"
version = "1.0.28"
@ -2261,6 +2368,12 @@ version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
[[package]]
name = "slab"
version = "0.4.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0c790de23124f9ab44544d7ac05d60440adc586479ce501c1d6d7da3cd8c9cf5"
[[package]]
name = "smallvec"
version = "1.15.1"
@ -2309,6 +2422,15 @@ version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
[[package]]
name = "static_cell"
version = "2.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0530892bb4fa575ee0da4b86f86c667132a94b74bb72160f58ee5a4afec74c23"
dependencies = [
"portable-atomic",
]
[[package]]
name = "strsim"
version = "0.11.1"
@ -2498,6 +2620,39 @@ dependencies = [
"tracing-log",
]
[[package]]
name = "trouble-host"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1df7817cead4b83dfbeeaa59736ecbc97c30b21dc3bfc0cc2ce8a6687f70b37a"
dependencies = [
"bt-hci",
"embassy-futures",
"embassy-sync 0.7.2",
"embassy-time",
"embedded-io 0.7.1",
"futures",
"heapless 0.9.2",
"rand_core 0.6.4",
"static_cell",
"trouble-host-macros",
"zerocopy",
]
[[package]]
name = "trouble-host-macros"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2d809ae05f510cf8f1d863749281eb28e049d9ae4ad52d92ea7a0ac068a0e17c"
dependencies = [
"convert_case",
"darling 0.20.11",
"proc-macro2",
"quote",
"syn 2.0.117",
"uuid",
]
[[package]]
name = "typenum"
version = "1.20.0"
@ -2539,6 +2694,12 @@ version = "1.0.24"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
[[package]]
name = "unicode-segmentation"
version = "1.13.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9629274872b2bfaf8d66f5f15725007f635594914870f65218920345aa11aa8c"
[[package]]
name = "unicode-width"
version = "0.1.14"
@ -2570,6 +2731,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ddd74a9687298c6858e9b88ec8935ec45d22e8fd5e6394fa1bd4e99a87789c76"
dependencies = [
"getrandom",
"js-sys",
"wasm-bindgen",
]
[[package]]
@ -2875,6 +3038,26 @@ dependencies = [
"syn 2.0.117",
]
[[package]]
name = "zerocopy"
version = "0.8.49"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bce33a6288fa3f072a8c2c7d0f2fdbb90e28298f0135c1f99b96c3db2efcc60b"
dependencies = [
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
version = "0.8.49"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8fd425244944f4ab65ccff928e7323354c5a018c75838362fdce749dfad2ee1e"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
]
[[package]]
name = "zmij"
version = "1.0.21"

View file

@ -23,6 +23,8 @@ esp = [
"dep:esp-rtos",
"dep:esp-bootloader-esp-idf",
"dep:embassy-executor",
"dep:embassy-futures",
"dep:embassy-sync",
"dep:embassy-time",
"dep:embedded-io",
"dep:embedded-io-async",
@ -30,6 +32,7 @@ esp = [
"dep:esp-backtrace",
"dep:esp-println",
"dep:esp-radio",
"dep:bt-hci",
"esp32-cits-core/esp32c5",
"esp32-cits-core/log-04",
]
@ -52,7 +55,7 @@ spat_debug = []
# enable ST7789 based display
screen = ["dep:mipidsi", "dep:embedded-graphics", "dep:embedded-hal-bus", "dep:profont"]
# enable I/O via UART
uart = ["_uart", "_gnss", "dep:prost"]
uart = ["_uart", "_gnss"]
# internal feature, that any UART I/O is enabled
_uart = []
@ -66,6 +69,7 @@ esp-rtos = { version = "0.3.0", optional = true, features = [
"embassy",
"esp-alloc",
"esp-radio",
"embassy",
"esp32c5",
"log-04",
] }
@ -74,7 +78,10 @@ esp-bootloader-esp-idf = { version = "0.5.0", optional = true, features = ["esp3
log = "0.4.27"
critical-section = "1.2.0"
bt-hci = { version = "0.8.0", optional = true }
embassy-executor = { version = "0.10.0", optional = true, features = ["log"] }
embassy-futures = { version = "0.1.2", optional = true }
embassy-sync = { version = "0.7", optional = true }
embassy-time = { version = "0.5.0", optional = true, features = ["log"] }
embedded-io = { version = "0.7.1", optional = true }
embedded-io-async = { version = "0.7.0", optional = true }
@ -92,7 +99,10 @@ esp-radio = { version = "0.18.0", optional = true, features = [
"unstable",
"wifi",
"sniffer",
"ble",
] }
trouble-host = { version = "0.6.0", features = ["gatt", "central", "derive", "default-packet-pool"] }
static_cell = "2"
embassy_gps = { version = "0.1.0", optional = true, default-features = false, features = ["esp", "log-04"], git = "https://github.com/jbeyerstedt/embassy_gps.git", branch = "feat/rework-gpsfix" }
esp32-cits-core = { version = "0.1.0", default-features = false, git = "https://git.hamburg.ccc.de/jtbx/esp32-cits-core", branch = "main" }
@ -111,7 +121,7 @@ geo-types = { version = "0.7.19", default-features = false }
mipidsi = { version = "0.10.0", optional = true }
num-traits = { version = "0.2.19", default-features = false, features = ["libm"] }
profont = { version = "0.7.0", optional = true }
prost = { version = "0.14", optional = true, default-features = false, features = ["derive"] }
prost = { version = "0.14", default-features = false, features = ["derive"] }
ublox = { version = "0.10", optional = true, default-features = false, features = ["alloc", "ubx_proto27"] }
[dev-dependencies]

View file

@ -70,7 +70,7 @@ rustup target add riscv32imac-unknown-none-elf
cargo install espflash --locked
```
(Project was setup using esp-generate with the options `--chip esp32c5 -o esp32c5-wroom-1-psram -o alloc -o log -o unstable-hal -o wifi -o esp-backtrace -o embassy`.)
(Project was setup using esp-generate with the options `--chip esp32c5 -o esp32c5-wroom-1-psram -o alloc -o log -o unstable-hal -o wifi -o esp-backtrace -o embassy -o ble-trouble`.)
To use the proper rustfmt features, enable the nightly toolchain:
```shell

View file

@ -35,15 +35,65 @@ All data types are defined in one `.proto` file: [c_its-messages.proto](./c_its-
When there's no GNSS receiver connected to the ESP, position, heading and speed information can be set using a `PositionState` message (see [c_its-messages.proto](./c_its-messages.proto)).
Maximum message size (assuming realistic value ranges):
field name | tag size | (max.) data size
----------------- | -------- | ---------
timestamp_ms | 1 | 8 (I64)
position | 1 | 1 (LEN(10)) + sub-fields below
\+ latitude_deg | 1 | 4 (I32)
\+ longitude_deg | 1 | 4 (I32)
heading | 1 | 2 (VARINT(3600))
speed | 1 | 2 (VARINT(~163 m/s))
**SUM** | 6 + | 21 = 27 byte
### DENM Event
Each received DENM will be "published" as a `DenmEvent` message (see [c_its-messages.proto](./c_its-messages.proto)).
Repetitions of the same message (e.g. no changes to the validity timeframe and location) may be dropped by the BLE server.
Maximum message size (assuming realistic value ranges):
field name | tag size | (max.) data size
----------------- | -------- | ---------
timestamp | 1 | 8 (I64)
validity_end_ts | 1 | 8 (I64)
station_id | 1 | 8 (I64)
seq_num | 1 | 3 (VARINT(65535))
event_position | 1 | 1 (LEN(10)) + sub-fields below
\+ latitude_deg | 1 | 4 (I32)
\+ longitude_deg | 1 | 4 (I32)
event_heading_deg | 1 | 1 (VARINT(360))
direction | 1 | 1 (VARINT(3))
cause_code | 1 | 1 (VARINT(127))
sub_cause_code | 1 | 1 (VARINT(127))
**SUM** | 11 + | 40 = 51 byte
Note: Cause code and sub-cause code are technically 0..255 in the ASN.1 spec, but that's mainly to ensure backwards-compatibility of the CHOICE with the old wire format.
Realistically only cause codes up to 100 are defined and common sub-cause codes use values up to 22.
### CAM Event
Each received (low-frequency) CAM will be "published" as a `CamEvent` message (see [c_its-messages.proto](./c_its-messages.proto)).
Maximum message size (assuming realistic value ranges):
field name | tag size | (max.) data size
--------------------- | -------- | ---------
station_id | 1 | 8 (I64)
station_type | 1 | 1 (VARINT(15))
position | 1 | 1 (LEN(10)) + sub-fields below
\+ latitude_deg | 1 | 4 (I32)
\+ longitude_deg | 1 | 4 (I32)
vehicle_role | 1 | 1 (VARINT(15))
vehicle_data | 1 | 1 (LEN(11)) + sub-fields below
\+ heading_deg | 1 | 2 (VARINT(360))
\+ speed | 1 | 2 (VARINT(~163 m/s))
\+ vehicle_length_dm | 1 | 2 (VARINT(1023))
\+ vehicle_width_dm | 1 | 1 (VARINT(62))
**SUM** | 11 + | 27 = 38 byte
### Raw Received Message
Received V2X messages will be "published" as a `RawMsgRx` message (see [c_its-messages.proto](./c_its-messages.proto)).

View file

@ -83,7 +83,7 @@ message PositionState {
}
message DenmEvent {
required fixed64 timestamp = 1; // DENM reference time as UNIX time
required fixed64 timestamp = 1; // DENM reference time as UNIX time (in seconds)
required fixed64 validity_end_ts = 2; // UNIX time when event validity ends (from denm.management.validityDuration)
required fixed32 station_id = 3; // unique ID of the event when combined with `seq_num`
required uint32 seq_num = 4; // unique ID of the event when combined with `station_id`

256
src/ble.rs Normal file
View file

@ -0,0 +1,256 @@
#![allow(
clippy::needless_borrows_for_generic_args,
reason = "gatt_service creates false positives"
)]
use core::cell::RefCell;
use critical_section::Mutex;
use esp_backtrace as _;
use log::{info, warn};
use trouble_host::prelude::*;
pub const CONTROLLER_SLOTS: usize = 20;
const CONNECTIONS_MAX: usize = 1;
const L2CAP_CHANNELS_MAX: usize = 1;
pub static TX_DATA: Mutex<RefCell<Option<BleSendable>>> = Mutex::new(RefCell::new(None));
pub static RX_DATA: Mutex<RefCell<Option<crate::io::msg::PositionState>>> =
Mutex::new(RefCell::new(None));
pub enum BleSendable {
#[cfg(feature = "cam")]
Cam(crate::io::msg::CamEvent),
#[cfg(feature = "denm")]
Denm(crate::io::msg::DenmEvent),
}
#[gatt_server]
struct Server {
c_its_events: CITSEvents,
}
#[cfg(feature = "cam")]
const CAM_EVENT_SIZE: usize = 38;
#[cfg(feature = "denm")]
const DENM_EVENT_SIZE: usize = 51;
#[gatt_service(uuid = "c0b70000-d4f4-4000-ada8-f99a02ee315c")]
struct CITSEvents {
#[descriptor(uuid = descriptors::MEASUREMENT_DESCRIPTION, name = "Position", read, value = "PositionState proto msg", type = &'static str)]
#[characteristic(uuid = "c0b70001-d4f4-4001-ada8-f99a02ee315c", write)]
position: [u8; 27],
#[cfg(feature = "cam")]
#[descriptor(uuid = descriptors::MEASUREMENT_DESCRIPTION, name = "CAM_Event", read, value = "CamEvent proto msg", type = &'static str)]
#[characteristic(uuid = "c0b70001-d4f4-4002-ada8-f99a02ee315c", read, notify, value = [0u8; CAM_EVENT_SIZE])]
cam_event: [u8; CAM_EVENT_SIZE],
#[cfg(feature = "denm")]
#[descriptor(uuid = descriptors::MEASUREMENT_DESCRIPTION, name = "DENM_Event", read, value = "DenmEvent proto msg", type = &'static str)]
#[characteristic(uuid = "c0b70001-d4f4-4004-ada8-f99a02ee315c", read, notify, value = [0u8; DENM_EVENT_SIZE])]
denm_event: [u8; DENM_EVENT_SIZE],
}
/// Creates the BLE controller
pub fn make_controller(
bt_peripheral: esp_hal::peripherals::BT<'static>,
) -> bt_hci::controller::ExternalController<
esp_radio::ble::controller::BleConnector<'static>,
CONTROLLER_SLOTS,
> {
let transport = esp_radio::ble::controller::BleConnector::new(
bt_peripheral,
esp_radio::ble::Config::default(),
)
.unwrap();
bt_hci::controller::ExternalController::<_, { CONTROLLER_SLOTS }>::new(transport)
}
/// Run the BLE stack.
#[embassy_executor::task]
pub async fn run(
controller: bt_hci::controller::ExternalController<
esp_radio::ble::controller::BleConnector<'static>,
CONTROLLER_SLOTS,
>,
) {
let mut resources: HostResources<DefaultPacketPool, CONNECTIONS_MAX, L2CAP_CHANNELS_MAX> =
HostResources::new();
let stack = trouble_host::new(controller, &mut resources);
let Host {
mut peripheral,
runner,
..
} = stack.build();
info!("Starting advertising and GATT service");
let server = Server::new_with_config(GapConfig::Peripheral(PeripheralConfig {
name: "ESP32 C-ITS",
appearance: &appearance::UNKNOWN,
}))
.unwrap();
let _ = embassy_futures::join::join(ble_task(runner), async {
loop {
match advertise("ESP32 C-ITS", &mut peripheral, &server).await {
Ok(conn) => {
// set up tasks when the connection is established to a central, so they don't run when no one is connected.
let a = gatt_events_task(&server, &conn);
let b = custom_task(&server, &conn, &stack);
// run until any task ends (usually because the connection has been closed),
// then return to advertising state.
embassy_futures::select::select(a, b).await;
}
Err(e) => {
panic!("BLE ADV: fatal error {e:?}");
}
}
}
})
.await;
}
/// Create an advertiser to use to connect to a BLE Central, and wait for it to connect.
async fn advertise<'values, 'server, C: Controller>(
name: &'values str,
peripheral: &mut Peripheral<'values, C, DefaultPacketPool>,
server: &'server Server<'values>,
) -> Result<GattConnection<'values, 'server, DefaultPacketPool>, BleHostError<C::Error>> {
let mut advertiser_data = [0; 35];
let len = AdStructure::encode_slice(
&[
AdStructure::Flags(LE_GENERAL_DISCOVERABLE | BR_EDR_NOT_SUPPORTED),
AdStructure::CompleteLocalName(name.as_bytes()),
],
&mut advertiser_data[..],
)?;
let advertiser = peripheral
.advertise(
&trouble_host::advertise::AdvertisementParameters {
timeout: Some(embassy_time::Duration::from_secs(2)),
..Default::default()
},
Advertisement::ConnectableScannableUndirected {
adv_data: &advertiser_data[..len],
scan_data: &[],
},
)
.await?;
// info!("[adv] advertising {len} bytes");
let conn = advertiser.accept().await?.with_attribute_server(server)?;
// info!("[adv] connection established");
Ok(conn)
}
async fn ble_task<C: Controller, P: PacketPool>(mut runner: Runner<'_, C, P>) {
loop {
if let Err(e) = runner.run().await {
panic!("BLE Task: fatal error {e:?}");
}
}
}
/// Stream Events until the connection closes.
///
/// This function will handle the GATT events and process them.
/// This is how we interact with read and write requests.
async fn gatt_events_task<P: PacketPool>(
server: &Server<'_>,
conn: &GattConnection<'_, '_, P>,
) -> Result<(), Error> {
let reason = loop {
match conn.next().await {
GattConnectionEvent::Disconnected { reason } => break reason,
GattConnectionEvent::Gatt { event } => {
match &event {
GattEvent::Write(event)
if event.handle() == server.c_its_events.position.handle =>
{
info!("[gatt] Write Event to Position: {:?}", event.data()); // TODO dev only
// TODO: parse proto and send to main thread
}
_ => {}
}
// This step is also performed at drop(), but writing it explicitly is necessary
// in order to ensure reply is sent.
match event.accept() {
Ok(reply) => reply.send().await,
Err(e) => warn!("BLE: error sending response: {e:?}"),
}
}
_ => {} // ignore other Gatt Connection Events
}
};
info!("BLE: disconnected b/c {reason:?}");
Ok(())
}
/// Example task to use the BLE notifier interface.
/// This task will notify the connected central of a counter value every 2 seconds.
/// It will also read the RSSI value every 2 seconds.
/// and will stop when the connection is closed by the central or an error occurs.
async fn custom_task<C: Controller, P: PacketPool>(
server: &Server<'_>,
conn: &GattConnection<'_, '_, P>,
stack: &Stack<'_, C, P>,
) {
loop {
embassy_time::Timer::after(embassy_time::Duration::from_millis(10)).await;
let mut new_data = None;
critical_section::with(|cs| {
let tx_data_ref = TX_DATA.borrow(cs);
if let Some(tx_data) = tx_data_ref.replace(None) {
new_data = Some(tx_data);
}
});
match new_data {
#[cfg(feature = "cam")]
Some(BleSendable::Cam(cam_event)) => {
let mut buf = cam_event.serialize_ble_proto();
if buf.len() <= CAM_EVENT_SIZE {
// pad with zeros
let pad = alloc::vec![0u8; CAM_EVENT_SIZE - buf.len()];
buf.extend_from_slice(&pad);
// unwrap should be fine since we ensured the vector size before
let value = buf.try_into().unwrap();
if let Err(err) = server.c_its_events.cam_event.notify(conn, &value).await {
warn!("BLE: failed notifying connection of new CAM event: {err:?}");
}
} else {
warn!("BLE: CAM event too big with {} bytes", buf.len());
}
}
#[cfg(feature = "denm")]
Some(BleSendable::Denm(denm_event)) => {
let mut buf = denm_event.serialize_ble_proto();
if buf.len() <= DENM_EVENT_SIZE {
// pad with zeros
let pad = alloc::vec![0u8; DENM_EVENT_SIZE - buf.len()];
buf.extend_from_slice(&pad);
// unwrap should be fine since we ensured the vector size before
let value = buf.try_into().unwrap();
if let Err(err) = server.c_its_events.denm_event.notify(conn, &value).await {
warn!("BLE: failed notifying connection of new DENM event: {err:?}");
}
} else {
warn!("BLE: DENM event too big with {} bytes", buf.len());
}
}
None => {}
}
}
}

213
src/io.rs
View file

@ -5,12 +5,12 @@ pub mod msg {
include!(concat!(env!("OUT_DIR"), "/c_its_io.rs"));
}
use alloc::string::ToString;
use alloc::vec::Vec;
#[cfg(feature = "uart")]
use c_its_parser::gn as geonetworking;
use log::error;
#[cfg(feature = "uart")]
impl From<msg::RawMsgRx> for msg::SerialOutputMsg {
fn from(value: msg::RawMsgRx) -> Self {
use msg::serial_output_msg::Payload;
@ -21,6 +21,7 @@ impl From<msg::RawMsgRx> for msg::SerialOutputMsg {
}
}
#[cfg(feature = "uart")]
impl From<msg::DenmEvent> for msg::SerialOutputMsg {
fn from(value: msg::DenmEvent) -> Self {
use msg::serial_output_msg::Payload;
@ -32,22 +33,41 @@ impl From<msg::DenmEvent> for msg::SerialOutputMsg {
}
impl msg::RawMsgRx {
#[cfg(feature = "uart")]
pub fn serialize_uart_proto(&self) -> Vec<u8> {
serialize_serial_msg(&Into::<msg::SerialOutputMsg>::into(self.clone()))
}
}
impl msg::DenmEvent {
#[cfg(feature = "uart")]
#[allow(unused)]
pub fn serialize_uart_proto(&self) -> Vec<u8> {
serialize_serial_msg(&Into::<msg::SerialOutputMsg>::into(*self))
}
#[cfg(feature = "denm")]
pub fn serialize_ble_proto(&self) -> Vec<u8> {
use prost::Message as _;
self.encode_to_vec()
}
}
impl msg::CamEvent {
#[cfg(feature = "cam")]
pub fn serialize_ble_proto(&self) -> Vec<u8> {
use prost::Message as _;
self.encode_to_vec()
}
}
#[cfg(feature = "uart")]
#[derive(Debug, Default)]
pub struct Parser {
buffer: alloc::vec::Vec<u8>,
}
#[cfg(feature = "uart")]
impl Parser {
const SOF_LEN: u16 = 4;
const SOF1: u8 = 0x56;
@ -91,7 +111,7 @@ impl Parser {
Ok(data) => {
output.push(data);
}
Err(err) => error!("Failed to parse input: {err:?}"),
Err(err) => log::error!("Failed to parse input: {err:?}"),
}
// consume buffer
@ -122,6 +142,7 @@ impl Parser {
}
}
#[cfg(feature = "uart")]
fn serialize_serial_msg<T>(msg: &T) -> Vec<u8>
where
T: prost::Message,
@ -141,6 +162,7 @@ where
out
}
#[cfg(feature = "uart")]
impl From<msg::PositionState> for crate::applogic::GnssFix {
fn from(value: msg::PositionState) -> Self {
let time =
@ -169,6 +191,7 @@ impl From<msg::PositionState> for crate::applogic::GnssFix {
}
}
#[cfg(feature = "uart")]
impl From<msg::PositionState> for esp32_cits_core::PosVel {
fn from(value: msg::PositionState) -> Self {
let position = geo_types::Point::new(
@ -194,6 +217,7 @@ impl From<msg::PositionState> for esp32_cits_core::PosVel {
}
}
#[cfg(feature = "uart")]
impl From<msg::ItsPosition> for esp32_cits_core::PosVel {
fn from(value: msg::ItsPosition) -> Self {
let latitude_deg = f64::from(value.latitude) / 10_000_000.;
@ -208,6 +232,7 @@ impl From<msg::ItsPosition> for esp32_cits_core::PosVel {
}
}
#[cfg(feature = "uart")]
impl esp32_cits_core::tx::GnItsPayload for msg::RawMsgTx {
fn make_eh(
&self,
@ -223,6 +248,8 @@ impl esp32_cits_core::tx::GnItsPayload for msg::RawMsgTx {
),
alloc::string::String,
> {
use alloc::string::ToString as _;
let station_type = self
.station_type
.and_then(|v| {
@ -304,6 +331,7 @@ impl esp32_cits_core::tx::GnItsPayload for msg::RawMsgTx {
}
}
#[cfg(feature = "uart")]
impl msg::RawMsgTx {
fn make_geobcast(
address: [u8; 6],
@ -384,12 +412,189 @@ impl msg::RawMsgTx {
}
}
#[cfg(feature = "cam")]
impl From<alloc::boxed::Box<c_its_parser::standards::cam_1_4_1::cam_pdu_descriptions::CAM>>
for msg::CamEvent
{
fn from(
value: alloc::boxed::Box<c_its_parser::standards::cam_1_4_1::cam_pdu_descriptions::CAM>,
) -> Self {
use c_its_parser::standards::cam_1_4_1::cam_pdu_descriptions;
let station_id = value.header.station_id.0;
let station_type = u32::from(value.cam.cam_parameters.basic_container.station_type.0);
let position = value
.cam
.cam_parameters
.basic_container
.reference_position
.into();
let vehicle_role = value
.cam
.cam_parameters
.low_frequency_container
.and_then(|v| match v {
cam_pdu_descriptions::LowFrequencyContainer::basicVehicleContainerLowFrequency(
basic_vehicle_container_low_frequency,
) => Some(basic_vehicle_container_low_frequency.vehicle_role as u32),
_ => None,
});
let vehicle_data = match value.cam.cam_parameters.high_frequency_container {
cam_pdu_descriptions::HighFrequencyContainer::basicVehicleContainerHighFrequency(
basic_vehicle_container_high_frequency,
) => Some(basic_vehicle_container_high_frequency.into()),
_ => None,
};
Self {
station_id,
station_type,
position,
vehicle_role,
vehicle_data,
}
}
}
#[cfg(feature = "cam")]
impl From<c_its_parser::standards::cam_1_4_1::cam_pdu_descriptions::BasicVehicleContainerHighFrequency> for msg::VehicleContainer {
fn from(value: c_its_parser::standards::cam_1_4_1::cam_pdu_descriptions::BasicVehicleContainerHighFrequency) -> Self {
let heading_deg = if value.heading.heading_value.is_unavailable() {
None
} else {
Some(u32::from(value.heading.heading_value.0))
};
let speed = if value.speed.speed_value.is_unavailable() {
None
} else {
Some(u32::from(value.speed.speed_value.0))
};
let vehicle_length_dm = if value.vehicle_length.vehicle_length_value.is_unavailable() {
None
} else {
Some(u32::from(value.vehicle_length.vehicle_length_value.0))
};
let vehicle_width_dm = if value.vehicle_width.is_unavailable() {
None
} else {
Some(u32::from(value.vehicle_width.0))
};
Self { heading_deg, speed, vehicle_length_dm, vehicle_width_dm }
}
}
#[cfg(feature = "denm")]
impl From<alloc::boxed::Box<c_its_parser::standards::denm_2_2_1::denm_pdu_description::DENM>>
for msg::DenmEvent
{
fn from(
value: alloc::boxed::Box<c_its_parser::standards::denm_2_2_1::denm_pdu_description::DENM>,
) -> Self {
let denm_mgmt = &value.denm.management;
let station_id = value.header.station_id.0; // TODO: or from action ID?
let ref_time = chrono::DateTime::<chrono::Utc>::from(denm_mgmt.reference_time.clone());
let end_time = ref_time + chrono::Duration::seconds(denm_mgmt.validity_duration.0.into());
#[allow(clippy::cast_sign_loss)]
let timestamp = ref_time.timestamp_millis() as u64;
#[allow(clippy::cast_sign_loss)]
let validity_end_ts = end_time.timestamp_millis() as u64;
let seq_num = denm_mgmt.action_id.sequence_number.0.into();
let event_position = Some(denm_mgmt.event_position.clone().into());
let event_heading_deg = value
.denm
.location
.and_then(|v| v.event_position_heading)
.map(|v| {
#[allow(clippy::cast_possible_truncation, clippy::cast_sign_loss)]
let conv = v.value.as_deg() as u32;
conv
});
let direction = denm_mgmt
.traffic_direction
.map(|v| msg::TrafficDir::from(v) as i32);
let cc_tuple = value
.denm
.situation
.map(|v| v.event_type.cc_and_scc.to_u8_tuple());
let cause_code = cc_tuple.map(|v| v.0.into());
let sub_cause_code = cc_tuple.map(|v| v.1.into());
Self {
timestamp,
validity_end_ts,
station_id,
seq_num,
event_position,
event_heading_deg,
direction,
cause_code,
sub_cause_code,
}
}
}
impl From<c_its_parser::standards::cdd_1_3_1_1::its_container::ReferencePosition>
for msg::Position
{
fn from(value: c_its_parser::standards::cdd_1_3_1_1::its_container::ReferencePosition) -> Self {
#[allow(clippy::cast_precision_loss, clippy::cast_possible_truncation)]
let latitude_deg = value.latitude.as_deg() as f32;
#[allow(clippy::cast_precision_loss, clippy::cast_possible_truncation)]
let longitude_deg = value.longitude.as_deg() as f32;
Self {
latitude_deg,
longitude_deg,
}
}
}
impl From<c_its_parser::standards::cdd_2_2_1::etsi_its_cdd::ReferencePosition> for msg::Position {
fn from(value: c_its_parser::standards::cdd_2_2_1::etsi_its_cdd::ReferencePosition) -> Self {
#[allow(clippy::cast_precision_loss, clippy::cast_possible_truncation)]
let latitude_deg = value.latitude.as_deg() as f32;
#[allow(clippy::cast_precision_loss, clippy::cast_possible_truncation)]
let longitude_deg = value.longitude.as_deg() as f32;
Self {
latitude_deg,
longitude_deg,
}
}
}
impl From<c_its_parser::standards::cdd_2_2_1::etsi_its_cdd::TrafficDirection> for msg::TrafficDir {
fn from(value: c_its_parser::standards::cdd_2_2_1::etsi_its_cdd::TrafficDirection) -> Self {
use c_its_parser::standards::cdd_2_2_1::etsi_its_cdd::TrafficDirection;
match value {
TrafficDirection::allTrafficDirections => Self::AllDirections,
TrafficDirection::sameAsReferenceDirection_upstreamOfReferencePosition => {
Self::Upstream
}
TrafficDirection::sameAsReferenceDirection_downstreamOfReferencePosition => {
Self::Downstream
}
TrafficDirection::oppositeToReferenceDirection => Self::Opposite,
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::init_test_env_logger;
#[cfg(feature = "uart")]
impl From<msg::RawMsgTx> for msg::SerialInputMsg {
fn from(value: msg::RawMsgTx) -> Self {
use msg::serial_input_msg::Payload;
@ -400,6 +605,7 @@ mod tests {
}
}
#[cfg(feature = "uart")]
impl From<msg::PositionState> for msg::SerialInputMsg {
fn from(value: msg::PositionState) -> Self {
use msg::serial_input_msg::Payload;
@ -414,6 +620,7 @@ mod tests {
// SerialInputMsg(RawMsgTx): 5632582b0040123e0a340202c173256817284029d5b3400f1feaf01ffffffc23b7743e00000fc0007e8138250737feebfff600000dffff7ffff1ce40400010011807220028020d0a
// SerialInputMsg(PositionState): 5632582b00170a1509a0bbe2a29f010000120a0d00002842150000b8410d0a
#[cfg(feature = "uart")]
#[test]
fn uart_parser() {
// generate some test UART input messages

View file

@ -45,9 +45,10 @@ use log::{error, info, warn};
extern crate alloc;
mod applogic;
#[cfg(any(feature = "cam", feature = "denm"))]
mod ble;
mod cache;
mod geo_alg;
#[cfg(feature = "uart")]
mod io;
#[cfg(feature = "screen")]
mod screen;
@ -89,7 +90,7 @@ static SERIAL: Mutex<RefCell<Option<esp_hal::uart::Uart<'static, esp_hal::Blocki
#[esp_rtos::main]
async fn main(spawner: Spawner) -> ! {
// generator version: 1.3.0
// generator parameters: --chip esp32c5 -o esp32c5-wroom-1-psram -o alloc -o log -o unstable-hal -o wifi -o esp-backtrace -o embassy
// generator parameters: --chip esp32c5 -o esp32c5-wroom-1-psram -o alloc -o log -o unstable-hal -o wifi -o esp-backtrace -o embassy -o ble-trouble
esp_println::logger::init_logger_from_env();
@ -107,6 +108,8 @@ async fn main(spawner: Spawner) -> ! {
// - GPIO28
esp_alloc::heap_allocator!(#[esp_hal::ram(reclaimed)] size: 65536);
// COEX needs more RAM - so we've added some more
esp_alloc::heap_allocator!(size: 64 * 1024);
esp_alloc::psram_allocator!(peripherals.PSRAM, esp_hal::psram);
let timg0 = TimerGroup::new(peripherals.TIMG0);
@ -188,6 +191,13 @@ async fn main(spawner: Spawner) -> ! {
let mac = esp_hal::efuse::base_mac_address();
info!("WiFi MAC: {mac}");
// Setup BLE
#[cfg(any(feature = "cam", feature = "denm"))]
{
let controller = ble::make_controller(peripherals.BT);
spawner.spawn(ble::run(controller).expect("Failed to spawn BLE task"));
}
// Setup GNSS:
// Seeed XIAO L67K:
// RX: D7/ GPIO12
@ -474,6 +484,13 @@ async fn main(spawner: Spawner) -> ! {
} => {
#[cfg(feature = "cam")]
applogic::cam::handle_cam(&etsi);
// Send data to BLE thread
#[cfg(feature = "cam")]
critical_section::with(|cs| {
let ble_update_ref = ble::TX_DATA.borrow(cs);
ble_update_ref.replace(Some(ble::BleSendable::Cam(etsi.into())));
});
}
#[cfg(feature = "denm")]
@ -481,7 +498,15 @@ async fn main(spawner: Spawner) -> ! {
geonetworking: _,
transport: _,
etsi,
} => applogic::denm::handle_denm(&etsi),
} => {
applogic::denm::handle_denm(&etsi);
// Send data to BLE thread
critical_section::with(|cs| {
let ble_update_ref = ble::TX_DATA.borrow(cs);
ble_update_ref.replace(Some(ble::BleSendable::Denm(etsi.into())));
});
}
#[cfg(feature = "denm")]
ItsMessage::DenmV1 {
geonetworking: _,