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aOK 2024-08-03 11:50:26 +03:00
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.cargo/config.toml Normal file
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[target.xtensa-esp32-none-elf]
runner = "espflash flash -M -b 2000000 --partition-table partitions.csv -p /dev/cu.usbserial-1420"
[env]
ESP_LOGLEVEL = "INFO"
[build]
rustflags = [
"-C",
"link-arg=-nostartfiles",
"-Dclippy::clone_on_ref_ptr",
"--cfg",
"feature=\"esp32\"",
]
target = "xtensa-esp32-none-elf"
[unstable]
build-std = ["alloc", "core"]
# [build]
# rustflags = ["--cfg", "feature=\"esp32\""]

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# Generated by Cargo
# will have compiled files and executables
debug/
target/
# These are backup files generated by rustfmt
**/*.rs.bk
# MSVC Windows builds of rustc generate these, which store debugging information
*.pdb

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{
"rust-analyzer.check.allTargets": false,
}

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[package]
name = "e-token"
version = "0.1.0"
authors = ["aok"]
edition = "2021"
license = "MIT OR Apache-2.0"
[lib]
name = "e_token"
# path = "src/modem/lib.rs"
[features]
esp32 = []
[dependencies]
esp-backtrace = { version = "0.13.0", features = [
"esp32",
"exception-handler",
"panic-handler",
"println",
] }
hal = { package = "esp-hal", version = "0.19.0", features = [
"esp32",
"embassy-futures",
"embassy-sync",
"async",
"embedded-io",
"embedded-io-async",
# "esp-hal-embassy",
] }
# hal = { package = "esp-hal", path = "/Users/aok/Projects/Hardware/exprojects/esp-hal/esp-hal", features = [
# "esp32",
# "embassy-futures",
# "embassy-sync",
# "async",
# "embedded-io",
# "embedded-io-async",
# # "esp-hal-embassy",
# ] }
esp-hal-embassy = { version = "0.2.0", features = [
"esp32",
"executors",
"log",
"integrated-timers",
] }
# esp-hal-embassy = { path = "/Users/aok/Projects/Hardware/exprojects/esp-hal/esp-hal-embassy", features = [
# "esp32",
# "executors",
# "log",
# "integrated-timers",
# ] }
embassy-time = "0.3.1"
embassy-sync = "0.6.0"
embedded-io-async = "0.6.1"
embassy-futures = "0.1.1"
embassy-net = { version = "0.4.0", features = [
"log",
"medium-ethernet",
"medium-ip",
"tcp",
"udp",
"dns",
"dhcpv4",
"proto-ipv6",
] }
embassy-net-ppp = { version = "0.1.0", features = ["log"] }
static_cell = { version = "2.1.0", features = ["nightly"] }
embassy-executor = { version = "0.5.0", features = [
"nightly",
"integrated-timers",
] }
esp-println = { version = "0.10.0", features = ["esp32", "log"] }
log = { version = "0.4.21" }
esp-alloc = { version = "0.4.0" }
embedded-io = "0.6.1"
esp-wifi = { version = "0.7.1", features = [
"esp32",
"phy-enable-usb",
"utils",
"wifi",
] }
# esp-wifi = { path = "/Users/aok/Projects/Hardware/exprojects/esp-hal/esp-wifi", features = [
# "esp32",
# "phy-enable-usb",
# "utils",
# "wifi",
# ] }
esp-hal-procmacros = { version = "0.12.0", features = ["embassy"] }
heapless = { version = "0.8.0", default-features = false }
smoltcp = { version = "0.11.0", default-features = false, features = [
"medium-ethernet",
"proto-dhcpv4",
"proto-igmp",
"proto-ipv4",
"socket-dhcpv4",
"socket-icmp",
"socket-raw",
"socket-tcp",
"socket-udp",
] }
rand_core = { version = "0.6.3", default-features = false }
rand = { version = "0.8.5", default-features = false, features = ["small_rng"] }
[profile.dev]
# Rust debug is too slow.
# For debug builds always builds with some optimization
opt-level = "s"
[profile.release]
codegen-units = 1 # LLVM can perform better optimizations using a single thread
debug = 2
debug-assertions = false
incremental = false
lto = 'fat'
opt-level = 's'
overflow-checks = false
[patch.crates-io]
hal = { package = "esp-hal", git = "https://github.com/esp-rs/esp-hal", rev = "40d5481eddd70580eeb79b6908f6fec0e9b06d61" }
esp-wifi = { git = "https://github.com/esp-rs/esp-hal", rev = "40d5481eddd70580eeb79b6908f6fec0e9b06d61" }
esp-hal-embassy = { git = "https://github.com/esp-rs/esp-hal", rev = "40d5481eddd70580eeb79b6908f6fec0e9b06d61" }
esp-hal-procmacros = { git = "https://github.com/esp-rs/esp-hal", rev = "40d5481eddd70580eeb79b6908f6fec0e9b06d61" }

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Copyright [year] [fullname]
Permission is hereby granted, free of charge, to any
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IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

0
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fn main() {
println!("cargo:rustc-link-arg-bins=-Tlinkall.x");
println!("cargo:rustc-link-arg-bins=-Trom_functions.x");
}

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[toolchain]
channel = "esp"

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#![deny(clippy::clone_on_ref_ptr)]
extern crate alloc;
pub mod modem;
pub mod utils;

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#![deny(clippy::clone_on_ref_ptr)]
use embassy_executor::Spawner;
// use embassy_futures::select::{select, Either};
use embassy_net::{Config, ConfigV4, Ipv4Address, Ipv4Cidr, Stack, StackResources};
use embassy_net_ppp::Runner;
use embassy_sync::{blocking_mutex::raw::NoopRawMutex, mutex::Mutex, signal::Signal};
use embassy_time::{with_timeout, Duration, Timer};
use esp_backtrace as _;
use hal::{
clock::{ClockControl, Clocks},
delay::Delay,
gpio::{GpioPin, Io},
peripherals::{Peripherals, UART0, UART1},
prelude::*,
system::SystemControl,
timer::{timg::TimerGroup, ErasedTimer, OneShotTimer, PeriodicTimer},
uart::{
config::{Config as UartConfig, DataBits, Parity, StopBits},
ClockSource, Uart,
},
Async,
};
use static_cell::StaticCell;
extern crate alloc;
use core::mem::MaybeUninit;
use e_token::{modem::modem_managers::ModemManager, utils::generate_random_seed};
#[global_allocator]
static ALLOCATOR: esp_alloc::EspHeap = esp_alloc::EspHeap::empty();
fn init_heap() {
const HEAP_SIZE: usize = 32 * 1024;
static mut HEAP: MaybeUninit<[u8; HEAP_SIZE]> = MaybeUninit::uninit();
unsafe {
ALLOCATOR.init(HEAP.as_mut_ptr() as *mut u8, HEAP_SIZE);
}
}
// When you are okay with using a nightly compiler it's better to use https://docs.rs/static_cell/2.1.0/static_cell/macro.make_static.html
macro_rules! mk_static {
($t:ty,$val:expr) => {{
static STATIC_CELL: static_cell::StaticCell<$t> = static_cell::StaticCell::new();
#[deny(unused_attributes)]
let x = STATIC_CELL.uninit().write(($val));
x
}};
}
// #[entry]
#[esp_hal_procmacros::main]
async fn main(spawner: Spawner) {
let peripherals = Peripherals::take();
let system = SystemControl::new(peripherals.SYSTEM);
let clocks = ClockControl::max(system.clock_control).freeze();
let delay = Delay::new(&clocks);
init_heap();
esp_println::logger::init_logger_from_env();
// let timer = hal::timer::PeriodicTimer::new(
// hal::timer::timg::TimerGroup::new(peripherals.TIMG1, &clocks)
// .timer0
// .into(),
// );
// let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks, None);
let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
let timer0: ErasedTimer = timg0.timer0.into();
let timer = PeriodicTimer::new(timer0);
let _init = esp_wifi::initialize(
esp_wifi::EspWifiInitFor::Wifi,
timer,
hal::rng::Rng::new(peripherals.RNG),
peripherals.RADIO_CLK,
&clocks,
)
.unwrap();
#[cfg(feature = "esp32")]
{
// let timg1 = TimerGroup::new(peripherals.TIMG1, &clocks, None);
let timg1 = TimerGroup::new(peripherals.TIMG1, &clocks);
let timer0: ErasedTimer = timg1.timer0.into();
let timers = [OneShotTimer::new(timer0)];
let timers = mk_static!([OneShotTimer<ErasedTimer>; 1], timers);
esp_hal_embassy::init(&clocks, timers);
}
// let timers = [OneShotTimer::new(timer0)];
// let timers = mk_static!([OneShotTimer<ErasedTimer>; 1], timers);
// esp_hal_embassy::init(&clocks, timers);
let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
let config = UartConfig {
baudrate: 115200,
data_bits: DataBits::DataBits8,
parity: Parity::ParityNone,
stop_bits: StopBits::STOP1,
clock_source: ClockSource::Apb,
rx_fifo_full_threshold: 1,
rx_timeout: Some(3),
};
config.rx_fifo_full_threshold(1);
#[cfg(feature = "esp32")]
let (tx_pin, rx_pin) = (io.pins.gpio14, io.pins.gpio15);
// let mut uart0 =
// Uart::new_async_with_config(peripherals.UART0, config, &clocks, tx_pin, rx_pin).unwrap();
let uart: Uart<'static, UART1, Async> =
Uart::new_async_with_config(peripherals.UART1, config, &clocks, tx_pin, rx_pin).unwrap();
// let mut modem_manager = ModemManager::new(uart);
// modem_manager.configure_connection().await.unwrap();
// Init network device
static STATE: StaticCell<embassy_net_ppp::State<4, 4>> = StaticCell::new();
let state = STATE.init(embassy_net_ppp::State::<4, 4>::new());
let (device, runner) = embassy_net_ppp::new(state);
// Generate random seed
let seed = generate_random_seed();
// Init network stack
static STACK: StaticCell<Stack<embassy_net_ppp::Device<'static>>> = StaticCell::new();
static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
let stack = &*STACK.init(Stack::new(
device,
Config::default(), // don't configure IP yet
RESOURCES.init(StackResources::<3>::new()),
seed,
));
loop {
// modem_manager.check_and_handle_sms().await.unwrap();
Timer::after(Duration::from_secs(5)).await;
}
}

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pub mod modem_managers;

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use core::{
fmt,
sync::atomic::{AtomicBool, Ordering},
};
use alloc::{
format,
string::{String, ToString},
vec::Vec,
};
use embassy_futures::select::select;
use embassy_time::{Duration, Instant, Timer};
use embedded_io_async::{BufRead, Read, Write};
use log::info;
pub struct ModemManager<T: Read + Write + BufRead> {
pub io: ModemIO<T>,
ppp_interval: Duration,
last_ppp_time: Instant,
}
impl<T: Read + Write + BufRead> ModemManager<T> {
pub fn new(uart: T) -> Self {
Self {
io: ModemIO::new(uart),
ppp_interval: Duration::from_secs(3600), // Default to 1 hour
last_ppp_time: Instant::now(),
}
}
async fn send_at_command(&mut self, command: &str) -> Result<String, T::Error> {
self.io.ensure_command_mode().await?;
self.io.inner.write_all(command.as_bytes()).await?;
self.io.inner.write_all(b"\r\n").await?;
let mut response = String::new();
let mut buf = [0u8; 64];
loop {
match self.io.inner.read(&mut buf).await {
Ok(0) => break,
Ok(n) => {
response.push_str(core::str::from_utf8(&buf[..n]).unwrap_or(""));
if response.contains("OK") || response.contains("ERROR") {
break;
}
}
Err(e) => return Err(e),
}
}
Ok(response)
}
pub async fn configure_connection(&mut self) -> Result<(), T::Error> {
self.send_at_command("AT+CGATT=1").await?;
self.send_at_command("AT+CGDCONT=1,\"IP\",\"cmnet\"")
.await?;
self.send_at_command("AT+CGACT=1,1").await?;
self.send_at_command("AT+CMGF=1").await?;
Ok(())
}
async fn run(&mut self) -> Result<(), T::Error> {
self.configure_connection().await?;
loop {
// select(self.check_and_handle_sms(), self.periodic_ppp_session()).await;
// Wait for a short period before the next iteration
Timer::after(Duration::from_secs(1)).await;
}
}
async fn send_sms(&mut self, recipient: &str, message: &str) -> Result<(), T::Error> {
self.send_at_command(&format!("AT+CMGS=\"{}\"", recipient))
.await?;
Timer::after(Duration::from_millis(100)).await;
self.io.inner.write_all(message.as_bytes()).await?;
self.io.inner.write_all(&[0x1A]).await?; // Ctrl+Z to send the message
Timer::after(Duration::from_secs(1)).await;
// Wait for the "OK" response
let mut response = String::new();
let mut buf = [0u8; 64];
loop {
match self.io.inner.read(&mut buf).await {
Ok(0) => break,
Ok(n) => {
response.push_str(core::str::from_utf8(&buf[..n]).unwrap_or(""));
if response.contains("OK") || response.contains("ERROR") {
break;
}
}
Err(e) => return Err(e),
}
}
if response.contains("OK") {
Ok(())
} else {
// Err(T::Error::from("Failed to send SMS"))
Ok(())
}
}
async fn periodic_ppp_session(&mut self) -> Result<(), T::Error> {
if Instant::now().duration_since(self.io.last_ppp_session) >= self.io.ppp_interval {
info!("Starting periodic PPP session");
self.start_ppp().await?;
// Run PPP for a fixed duration (e.g., 5 minutes)
Timer::after(Duration::from_secs(300)).await;
// Exit PPP mode
self.exit_ppp().await?;
self.io.last_ppp_session = Instant::now();
}
Ok(())
}
pub async fn check_and_handle_sms(&mut self) -> Result<(), T::Error> {
if self.io.new_sms_flag.load(Ordering::Relaxed) {
self.io.new_sms_flag.store(false, Ordering::Relaxed);
self.handle_incoming_sms().await?;
}
Ok(())
}
async fn handle_incoming_sms(&mut self) -> Result<(), T::Error> {
let response = self.send_at_command("AT+CMGL=\"REC UNREAD\"").await?;
// Parse the response to extract SMS details
for line in response.lines() {
if line.starts_with("+CMGL:") {
let parts: Vec<&str> = line.split(',').collect();
if parts.len() >= 3 {
let index = parts[0].split(':').nth(1).unwrap().trim();
let sender = parts[2].trim_matches('"');
// Read the message content (it's in the next line)
if let Some(content) = response
.lines()
.nth(response.lines().position(|l| l == line).unwrap() + 1)
{
info!("New SMS from {}: {}", sender, content);
// Process the SMS content here
self.process_sms_command(sender, content).await?;
// Delete the processed message
self.send_at_command(&format!("AT+CMGD={}", index)).await?;
}
}
}
}
Ok(())
}
pub async fn start_ppp(&mut self) -> Result<(), T::Error> {
self.io.enter_data_mode().await
}
pub async fn exit_ppp(&mut self) -> Result<(), T::Error> {
// Send "+++" to exit PPP mode
self.io.inner.write_all(b"+++").await?;
Timer::after(Duration::from_secs(1)).await;
// Confirm we're back in command mode
self.send_at_command("AT").await?;
self.io.state = ModemState::CommandMode;
Ok(())
}
async fn process_sms_command(&mut self, sender: &str, content: &str) -> Result<(), T::Error> {
match content.trim().to_lowercase().as_str() {
"status" => {
let status = self.get_connection_status().await?;
self.send_sms(sender, &status).await?;
}
"restart" => {
self.send_sms(sender, "Restarting modem...").await?;
self.restart_modem().await?;
}
"ip" => {
let ip = self.get_ip_address().await?;
self.send_sms(sender, &format!("Current IP: {}", ip))
.await?;
}
"signal" => {
let signal = self.get_signal_strength().await?;
self.send_sms(sender, &format!("Signal strength: {}", signal))
.await?;
}
_ => {
self.send_sms(
sender,
"Unknown command. Available commands: status, restart, ip, signal",
)
.await?;
}
}
Ok(())
}
async fn get_connection_status(&mut self) -> Result<String, T::Error> {
let response = self.send_at_command("AT+CREG?").await?;
if response.contains("+CREG: 0,1") || response.contains("+CREG: 0,5") {
Ok("Connected".to_string())
} else {
Ok("Not connected".to_string())
}
}
async fn restart_modem(&mut self) -> Result<(), T::Error> {
self.send_at_command("AT+CFUN=1,1").await?;
Timer::after(Duration::from_secs(10)).await;
self.configure_connection().await
}
async fn get_ip_address(&mut self) -> Result<String, T::Error> {
let response = self.send_at_command("AT+CGPADDR=1").await?;
if let Some(ip) = response.lines().find(|line| line.starts_with("+CGPADDR:")) {
Ok(ip
.split(',')
.nth(1)
.unwrap_or("Unknown")
.trim_matches('"')
.to_string())
} else {
Ok("Unknown".to_string())
}
}
async fn get_signal_strength(&mut self) -> Result<String, T::Error> {
let response = self.send_at_command("AT+CSQ").await?;
if let Some(csq) = response.lines().find(|line| line.starts_with("+CSQ:")) {
let parts: Vec<&str> = csq.split(':').nth(1).unwrap().split(',').collect();
if let Some(rssi) = parts.first() {
let rssi_val: i32 = rssi.trim().parse().unwrap_or(-1);
if rssi_val >= 0 && rssi_val <= 31 {
let dbm = -113 + (2 * rssi_val);
Ok(format!("{} dBm", dbm))
} else if rssi_val == 99 {
Ok("Unknown".to_string())
} else {
Ok("Invalid".to_string())
}
} else {
Ok("Unknown".to_string())
}
} else {
Ok("Unknown".to_string())
}
}
pub async fn handle_server_payload(&mut self, payload: &str) -> Result<(), T::Error> {
if let Some(interval) = payload.strip_prefix("SET_PPP_INTERVAL:") {
if let Ok(seconds) = interval.parse::<u64>() {
let new_interval = Duration::from_secs(seconds);
self.io.set_ppp_interval(new_interval);
info!("PPP interval updated to {} seconds", seconds);
}
}
Ok(())
}
}
pub struct ModemIO<T: Read + Write + BufRead> {
pub inner: T,
state: ModemState,
last_write: Option<Instant>,
sms_check_interval: Duration,
last_sms_check: Instant,
new_sms_flag: AtomicBool,
ppp_interval: Duration,
last_ppp_session: Instant,
}
impl<T: Read + Write + BufRead> ModemIO<T> {
fn new(inner: T) -> Self {
Self {
inner,
state: ModemState::CommandMode,
last_write: None,
sms_check_interval: Duration::from_secs(30),
last_sms_check: Instant::now(),
new_sms_flag: AtomicBool::new(false),
ppp_interval: Duration::from_secs(3600), // Default 1 hour
last_ppp_session: Instant::now(),
}
}
async fn ensure_command_mode(&mut self) -> Result<(), T::Error> {
if self.state == ModemState::CommandMode {
return Ok(());
}
// Send the escape sequence to exit data mode
self.inner.write_all(b"+++").await?;
Timer::after(Duration::from_secs(1)).await;
self.state = ModemState::CommandMode;
Ok(())
}
async fn enter_data_mode(&mut self) -> Result<(), T::Error> {
self.inner.write_all(b"ATD*99***1#\r\n").await?;
Timer::after(Duration::from_secs(1)).await;
self.state = ModemState::DataMode;
Ok(())
}
fn set_ppp_interval(&mut self, interval: Duration) {
self.ppp_interval = interval;
}
async fn check_for_sms(&mut self) -> Result<(), T::Error> {
self.ensure_command_mode().await?;
self.state = ModemState::CheckingSMS;
// Check for new SMS
self.inner.write_all(b"AT+CMGL=\"REC UNREAD\"\r\n").await?;
let mut response = String::new();
let mut buf = [0u8; 128];
loop {
match self.inner.read(&mut buf).await {
Ok(0) => break,
Ok(n) => {
response.push_str(core::str::from_utf8(&buf[..n]).unwrap_or(""));
if response.contains("OK") {
break;
}
}
Err(e) => return Err(e),
}
}
if response.contains("+CMGL:") {
self.new_sms_flag.store(true, Ordering::Relaxed);
}
self.state = ModemState::CommandMode;
self.last_sms_check = Instant::now();
Ok(())
}
}
#[derive(PartialEq)]
pub enum ModemState {
CommandMode,
DataMode,
TransitioningToCommandMode,
CheckingSMS,
}
// Add this custom error type and conversion:
#[derive(Debug)]
pub struct ModemError;
impl core::fmt::Display for ModemError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(f, "Modem error")
}
}
impl core::convert::From<ModemError> for core::fmt::Error {
fn from(_: ModemError) -> Self {
core::fmt::Error
}
}
/*
AT+CGATT=1 ;Attach to the GPRS network, can also use parameter 0 to detach.
OK ;Response, attach successful
AT+CGDCONT=? ;Input test command for help information.
+CGDCONT: (1..7), (IP,IPV6,PPP),(0..3),(0..4) OK ;Response, show the helpful information.
// AT+CGDCONT=1,"IP","internet"
AT+CGDCONT=1, "IP", "cmnet" ;Before active, use this command to set PDP context.
OK ;Response. Set context OK.
AT+CGACT=1,1 ;Active command is used to active the specified PDP context.
OK ;Response, active successful.
ATD*99***1# ;This command is to start PPP translation.
CONNECT ;Response, when get this, the module has been set to data state.
PPP data should be transferred after this response and anything input is treated as data.
i need to get into this mode when i need to make a http request and publish to an mqtt broker
using reqwless crate and rust-mqtt crate respectively. So i need to be in COMMAND state mode
as the default mode to be able to listen to incoming sms URCs and only shift to PPP mode or data state
when i need to communicate to server(s). So i should be in COMMAND state most of the time and
be in data state like three times in 24hrs.
+++ ;This command is to change the status to online data state.
Notice that before input this command, you need to wait for a
three seconds’ break, and it should also be followed by 3 seconds’
break, otherwise “+++” will be treated as data.
ATH ;Use this command to return COMMAND state
ok Response
*/

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extern crate rand;
extern crate rand_core; // or your preferred panic handler
use rand::rngs::SmallRng;
use rand_core::RngCore;
use rand_core::SeedableRng;
#[macro_export]
macro_rules! singleton {
($val:expr, $T:ty) => {{
static STATIC_CELL: ::static_cell::StaticCell<$T> = ::static_cell::StaticCell::new();
STATIC_CELL.init($val)
}};
}
// Dummy entropy source for demonstration purposes
struct DummyEntropySource;
impl DummyEntropySource {
fn new() -> Self {
DummyEntropySource
}
fn get_entropy(&self) -> [u8; 16] {
// In a real `no_std` environment, you need to replace this with a proper entropy source.
[0x42; 16] // Just an example, replace with real entropy
}
}
pub fn generate_random_seed() -> u64 {
let entropy_source = DummyEntropySource::new();
let seed = entropy_source.get_entropy();
let mut rng = SmallRng::from_seed(seed);
// Generate random seed
let mut seed_bytes = [0u8; 8];
rng.fill_bytes(&mut seed_bytes);
u64::from_le_bytes(seed_bytes)
}

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