move most of the system functions out of main.rs

This commit is contained in:
sigil-03 2025-10-26 08:20:19 -06:00
parent 08d7289c93
commit 3eb410c796
2 changed files with 162 additions and 143 deletions

View file

@ -3,7 +3,12 @@
#![feature(type_alias_impl_trait)]
#![feature(impl_trait_in_assoc_type)]
// app stuff
mod insert_coin;
// system stuff
mod system;
use ch32_hal::{adc::AdcChannel, interrupt::typelevel::Handler, timer::low_level::OutputPolarity};
use insert_coin::{CoreConfig, InsertCoin, SimplePwmCore};
@ -84,139 +89,6 @@ pub enum SystemState {
Active,
}
/// enter standby (SLEEPDEEP) mode, with WFE enabled.
/// from CH32V003 reference manual 2.3.1:
/// entry:
/// 1. configure core register control bit: SLEEPDEEP=1 | PDDS = 1
/// 2. configure external interrupt register to mask all but EXTI7_0
/// 3. execute WFI or WFE (optionally SEVONPEND) and SLEEPONEXIT
/// * (probably WFI?)
/// exit:
/// 1. any interrupt/event (set in external interrupt register)
unsafe fn enter_standby(pin: usize) {
critical_section::with(|_| {
use hal::pac::Interrupt;
use qingke_rt::CoreInterrupt;
// configure core register control bit (SLEEPDEEP=1 | PDDS=1)
let pfic = &hal::pac::PFIC;
pfic.sctlr().modify(|w| {
// we only want to wake on enabled interrupts
w.set_sevonpend(false);
// we want to enable deep sleep
w.set_sleepdeep(true);
w.set_wfitowfe(false);
w.set_sleeponexit(false);
});
// set PDDS=1:
// get current value of PWR_CTLR
let mut reg: u32 = 0x4000_7000;
let mut val: u32 = 0;
unsafe {
val = (reg as *mut u32).read_volatile();
}
// modify PDDS
val |= 1 << 1; // PWR_CTLR[1] -> PDDS
unsafe {
(reg as *mut u32).write_volatile(val);
}
// // disable all exti interrupts
let exti = &hal::pac::EXTI;
// exti.intenr().write(| w| {
// w.0 = 0x00000000;
// // w.set_mr(pin, true);
// // w.set_mr(pin, true);
// });
// clear all pending exti interrupts
let bits = 0xFFFFFFFF;
exti.intfr().write(|w| w.0 = bits);
// enable all exti interrupts
let exti = &hal::pac::EXTI;
exti.intenr().write(|w| {
w.0 = 0x00FFFFFF;
// w.set_mr(pin, true);
// w.set_mr(pin, true);
});
unsafe {
qingke::pfic::disable_interrupt(CoreInterrupt::SysTick as u8);
qingke::pfic::enable_interrupt(Interrupt::EXTI7_0 as u8);
}
// execute WFI
#[cfg(feature = "enable_print")]
println!("WFI CONFIGURED HOPEFULLY");
});
}
unsafe fn init_gpio_irq(pin: u8, port: u8, rising: bool, falling: bool) {
critical_section::with(|_| {
#[cfg(feature = "enable_print")]
println!("init_gpio_irq");
let exti = &hal::pac::EXTI;
let afio = &hal::pac::AFIO;
let port = port as u8;
let pin = pin as usize;
// let b = afio.exticr().read();
afio.exticr().modify(|w| w.set_exti(pin, port));
exti.intenr().modify(|w| w.set_mr(pin, true)); // enable interrupt
exti.rtenr().modify(|w| w.set_tr(pin, rising));
exti.ftenr().modify(|w| w.set_tr(pin, falling));
});
}
fn clear_interrupt(coin_pin: u8, button_pin: u8) {
let exti = &hal::pac::EXTI;
let coin_pin = coin_pin as usize;
let button_pin = button_pin as usize;
exti.intenr().modify(|w| w.set_mr(coin_pin, false)); // disable interrupt
exti.intenr().modify(|w| w.set_mr(button_pin, false)); // disable interrupt
let bits = exti.intfr().read();
// We don't handle or change any EXTI lines above 24.
let bits = bits.0 & 0x00FFFFFF;
// coin_flag
if (bits & (0x1 << coin_pin)) != 0x0 {
#[cfg(feature = "enable_print")]
println!("coin irq!");
unsafe {
INPUT_FLAGS.coin_flag = true;
}
}
// button_flag
if (bits & (0x1 << button_pin)) != 0x0 {
#[cfg(feature = "enable_print")]
println!("button irq!");
unsafe {
INPUT_FLAGS.button_flag = true;
}
}
// Clear pending - Clears the EXTI's line pending bits.
exti.intfr().write(|w| w.0 = bits);
use hal::pac::Interrupt;
unsafe {
qingke::pfic::unpend_interrupt(Interrupt::EXTI7_0 as u8);
};
// exti.intenr().modify(|w| w.0 = w.0 & !bits);
exti.intenr().modify(|w| w.set_mr(coin_pin, true)); // enable interrupt
exti.intenr().modify(|w| w.set_mr(button_pin, true)); // enable interrupt
}
#[derive(Debug)]
struct InputFlags {
coin_flag: bool,
@ -233,8 +105,8 @@ impl Handler<hal::interrupt::typelevel::EXTI7_0> for Test {
unsafe fn on_interrupt() {
#[cfg(feature = "enable_print")]
println!("on_interrupt()");
critical_section::with(|_| {
clear_interrupt(2, 6);
critical_section::with(|_| unsafe {
INPUT_FLAGS = system::clear_interrupt(2, 6);
});
}
}
@ -254,12 +126,12 @@ fn debug_main(mut p: hal::Peripherals, mut delay: Delay) -> ! {
// button pin setup
let button_pin = p.PD6;
unsafe { init_gpio_irq(button_pin.pin(), button_pin.port(), false, true) };
unsafe { system::init_gpio_irq(button_pin.pin(), button_pin.port(), false, true) };
let mut button_input = Input::new(button_pin, Pull::Up);
delay.delay_ms(1000);
unsafe { enter_standby(4) };
unsafe { system::enter_standby(4) };
delay.delay_ms(1000);
riscv::asm::wfi();
@ -357,8 +229,8 @@ fn app_main(mut p: hal::Peripherals, mut delay: Delay) -> ! {
// 2025-09-10 00:32:23.515: push pin: 6 | push port: 3
// set up interrupts
unsafe { init_gpio_irq(coin_pin.pin(), coin_pin.port(), false, true) };
unsafe { init_gpio_irq(button_pin.pin(), button_pin.port(), true, true) };
unsafe { system::init_gpio_irq(coin_pin.pin(), coin_pin.port(), false, true) };
unsafe { system::init_gpio_irq(button_pin.pin(), button_pin.port(), true, true) };
// coin debouncer (100ms)
let mut coin_input = DebouncedGPIO::new(coin_pin.degrade(), core_config.tick_rate_hz, 100);
@ -411,7 +283,8 @@ fn app_main(mut p: hal::Peripherals, mut delay: Delay) -> ! {
let tick_interval_us = 1000000 / interfaces.config.tick_rate_hz - 10;
// dac data
let coin_sound = include_bytes!("../audio/coin.raw");
// let coin_sound = include_bytes!("../audio/coin.raw");
let coin_sound = include_bytes!("../audio/sweep_dpcm_u4.raw");
// let button_sound = include_bytes!("../audio/coinMixTest1_dpcm_u4.raw");
let mut system_state = SystemState::Active;
@ -425,7 +298,7 @@ fn app_main(mut p: hal::Peripherals, mut delay: Delay) -> ! {
// use qingke_rt::CoreInterrupt;
// qingke::pfic::unpend_interrupt(Interrupt::EXTI7_0 as u8);
clear_interrupt(2, 6);
system::clear_interrupt(2, 6);
qingke::pfic::enable_interrupt(Interrupt::EXTI7_0 as u8);
// qingke::pfic::enable_interrupt(CoreInterrupt::SysTick as u8);
}
@ -540,7 +413,7 @@ fn app_main(mut p: hal::Peripherals, mut delay: Delay) -> ! {
match system_state {
SystemState::DeepSleep => {
// TODO: make this REALLY deep sleep
unsafe { enter_standby(4) };
unsafe { system::enter_standby(4) };
loop {
riscv::asm::wfi();
let mut config = hal::Config::default();
@ -600,7 +473,8 @@ fn main() -> ! {
let mut delay = Delay;
delay.delay_ms(1000);
debug_main(p, delay);
// debug_main(p, delay);
app_main(p, delay);
}
#[panic_handler]

View file

@ -0,0 +1,145 @@
use ch32_hal as hal;
use hal::println;
pub unsafe fn init_gpio_irq(pin: u8, port: u8, rising: bool, falling: bool) {
critical_section::with(|_| {
#[cfg(feature = "enable_print")]
println!("init_gpio_irq");
let exti = &hal::pac::EXTI;
let afio = &hal::pac::AFIO;
let port = port as u8;
let pin = pin as usize;
// let b = afio.exticr().read();
afio.exticr().modify(|w| w.set_exti(pin, port));
exti.intenr().modify(|w| w.set_mr(pin, true)); // enable interrupt
exti.rtenr().modify(|w| w.set_tr(pin, rising));
exti.ftenr().modify(|w| w.set_tr(pin, falling));
});
}
// FIXME: should return a vec of the interrupts
pub fn clear_interrupt(coin_pin: u8, button_pin: u8) -> crate::InputFlags {
let mut input_flags = crate::InputFlags {
coin_flag: false,
button_flag: false,
};
let exti = &hal::pac::EXTI;
let coin_pin = coin_pin as usize;
let button_pin = button_pin as usize;
exti.intenr().modify(|w| w.set_mr(coin_pin, false)); // disable interrupt
exti.intenr().modify(|w| w.set_mr(button_pin, false)); // disable interrupt
let bits = exti.intfr().read();
// We don't handle or change any EXTI lines above 24.
let bits = bits.0 & 0x00FFFFFF;
// coin_flag
if (bits & (0x1 << coin_pin)) != 0x0 {
#[cfg(feature = "enable_print")]
println!("coin irq!");
input_flags.coin_flag = true;
// unsafe {
// INPUT_FLAGS.coin_flag = true;
// }
}
// button_flag
if (bits & (0x1 << button_pin)) != 0x0 {
#[cfg(feature = "enable_print")]
println!("button irq!");
input_flags.button_flag = true;
// unsafe {
// INPUT_FLAGS.button_flag = true;
// }
}
// Clear pending - Clears the EXTI's line pending bits.
exti.intfr().write(|w| w.0 = bits);
use hal::pac::Interrupt;
unsafe {
qingke::pfic::unpend_interrupt(Interrupt::EXTI7_0 as u8);
};
// exti.intenr().modify(|w| w.0 = w.0 & !bits);
exti.intenr().modify(|w| w.set_mr(coin_pin, true)); // enable interrupt
exti.intenr().modify(|w| w.set_mr(button_pin, true)); // enable interrupt
input_flags
}
/// enter standby (SLEEPDEEP) mode, with WFE enabled.
/// from CH32V003 reference manual 2.3.1:
/// entry:
/// 1. configure core register control bit: SLEEPDEEP=1 | PDDS = 1
/// 2. configure external interrupt register to mask all but EXTI7_0
/// 3. execute WFI or WFE (optionally SEVONPEND) and SLEEPONEXIT
/// * (probably WFI?)
/// exit:
/// 1. any interrupt/event (set in external interrupt register)
pub unsafe fn enter_standby(pin: usize) {
critical_section::with(|_| {
use hal::pac::Interrupt;
use qingke_rt::CoreInterrupt;
// configure core register control bit (SLEEPDEEP=1 | PDDS=1)
let pfic = &hal::pac::PFIC;
pfic.sctlr().modify(|w| {
// we only want to wake on enabled interrupts
w.set_sevonpend(false);
// we want to enable deep sleep
w.set_sleepdeep(true);
w.set_wfitowfe(false);
w.set_sleeponexit(false);
});
// set PDDS=1:
// get current value of PWR_CTLR
let mut reg: u32 = 0x4000_7000;
let mut val: u32 = 0;
unsafe {
val = (reg as *mut u32).read_volatile();
}
// modify PDDS
val |= 1 << 1; // PWR_CTLR[1] -> PDDS
unsafe {
(reg as *mut u32).write_volatile(val);
}
// // disable all exti interrupts
let exti = &hal::pac::EXTI;
// exti.intenr().write(| w| {
// w.0 = 0x00000000;
// // w.set_mr(pin, true);
// // w.set_mr(pin, true);
// });
// clear all pending exti interrupts
let bits = 0xFFFFFFFF;
exti.intfr().write(|w| w.0 = bits);
// enable all exti interrupts
let exti = &hal::pac::EXTI;
exti.intenr().write(|w| {
w.0 = 0x00FFFFFF;
// w.set_mr(pin, true);
// w.set_mr(pin, true);
});
unsafe {
qingke::pfic::disable_interrupt(CoreInterrupt::SysTick as u8);
qingke::pfic::enable_interrupt(Interrupt::EXTI7_0 as u8);
}
// execute WFI
#[cfg(feature = "enable_print")]
println!("WFI CONFIGURED HOPEFULLY");
});
}