extern crate common;
mod uart0;
+mod button;
+mod model;
+mod views;
use common::buffer::Buffer;
+use common::ringbuf::Ringbuf;
use common::clock;
use common::systick;
use common::port;
use common::gpio;
use common::nvic;
use common::i2c;
+use common::spi;
use common::uart;
use common::usb_serial;
use common::display;
use common::gps;
+use common::screen;
+use common::mx25l::Mx25l;
+use common::shell::Shell;
+use common::logger::Logger;
extern {
fn enable_interrupts();
static mut cdc_tx_buf: Buffer;
}
+#[derive(Clone, Copy, PartialEq)]
+enum View {
+ Time,
+ Distance,
+}
+
struct Timer {
state: u32,
delay_ms: u32,
}
}
+fn next_view(view: View) -> View {
+ match view {
+ View::Time => View::Distance,
+ View::Distance => View::Time,
+ }
+}
+
+fn previous_view(view: View) -> View {
+ match view {
+ View::Time => View::Distance,
+ View::Distance => View::Time,
+ }
+}
+
+fn reset_requested() -> bool {
+ let pta1 = gpio::get(gpio::GPIOA) & (1 << 1);
+ let pte25 = gpio::get(gpio::GPIOE) & (1 << 25);
+
+ (pta1 | pte25) == 0
+}
+
+#[inline(never)]
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+ loop {
+ if reset_requested() {
+ nvic::system_reset();
+ }
+ }
+}
+
+fn configure_push_buttons() {
+ // Configure lower right push button.
+ gpio::set_direction(gpio::GPIOA, 1 << 1, gpio::Direction::Input);
+ port::set_af(port::PORTA, 1, 1);
+ port::set_pull(port::PORTA, 1, port::Pull::Up);
+
+ // Configure upper right push button.
+ gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
+ port::set_af(port::PORTA, 12, 1);
+ port::set_pull(port::PORTA, 12, port::Pull::Up);
+
+ // Configure lower left push button.
+ gpio::set_direction(gpio::GPIOE, 1 << 24, gpio::Direction::Input);
+ port::set_af(port::PORTE, 24, 1);
+ port::set_pull(port::PORTE, 24, port::Pull::Up);
+
+ // Configure upper left push button.
+ gpio::set_direction(gpio::GPIOE, 1 << 25, gpio::Direction::Input);
+ port::set_af(port::PORTE, 25, 1);
+ port::set_pull(port::PORTE, 25, port::Pull::Up);
+
+ // Configure middle left push button.
+ gpio::set_direction(gpio::GPIOE, 1 << 31, gpio::Direction::Input);
+ port::set_af(port::PORTE, 31, 1);
+ port::set_pull(port::PORTE, 31, port::Pull::Up);
+}
+
+fn uart0_try_read() -> Option<u8> {
+ extern {
+ static mut uart0_rx_buf: Ringbuf;
+ }
+
+ unsafe {
+ if uart0_rx_buf.is_empty() {
+ None
+ } else {
+ Some(uart0_rx_buf.read())
+ }
+ }
+}
+
#[no_mangle]
pub unsafe extern "C" fn _start() -> ! {
clock::configure();
gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
port::set_af(port::PORTB, 16, 1);
+ // Configure pin for the MX25L's chip select line.
+ gpio::set_direction(gpio::GPIOD, 1 << 0, gpio::Direction::Output);
+ port::set_af(port::PORTD, 0, 1);
+ gpio::set(gpio::GPIOD, 1 << 0);
+
+ // Configure pins for SPI0.
+ port::set_af(port::PORTD, 1, 2);
+ port::set_af(port::PORTD, 2, 5);
+ port::set_af(port::PORTD, 3, 5);
+
+ spi::configure(spi::SPI0);
+
+ nvic::disable_irq(10); // SPI0
+
// Configure pins for UART0.
port::set_af(port::PORTE, 20, 4);
port::set_af(port::PORTE, 21, 4);
gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
port::set_af(port::PORTB, 1, 1);
- // Configure upper right push button.
- gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
- port::set_af(port::PORTA, 12, 1);
- port::set_pull(port::PORTA, 12, port::Pull::Up);
+ configure_push_buttons();
enable_interrupts();
display.init();
display.clear();
+ let mut screen = screen::Screen::new();
+
// Hold GPS in reset while configuring its UART.
gpio::clear(gpio::GPIOB, 1);
systick::delay_ms(50);
nvic::enable_irq(12); // UART0
+ let mut shell = Shell::new(&mut cdc_tx_buf);
+
+ let mut mx25l = Mx25l::new(gpio::GPIOD, 1 << 0);
+
+ let mut logger = Logger::new(&mut mx25l);
+ logger.init();
+
+ let mut pta12 = button::Button::new(gpio::GPIOA, 1 << 12);
+ let mut pte24 = button::Button::new(gpio::GPIOE, 1 << 24);
+ let mut pta01 = button::Button::new(gpio::GPIOA, 1 << 1);
+ let mut is_recording = false;
+
let mut gps = gps::Gps::new();
let mut gps_has_fix = false;
let mut heart_icon_timer = Timer::new(1000);
let mut gps_icon_timer = Timer::new(500);
+ let mut prev_tap = gps::TimeAndPos::new();
+
+ let mut view = View::Time;
+
+ let mut time_view = views::TimeView::new();
+ let mut distance_view = views::DistanceView::new();
+
+ let mut model = model::Model::new();
+
loop {
let mut tap = gps::TimeAndPos::new();
let old_gps_has_fix = gps_has_fix;
- while gps.update(&mut tap) {
+ while gps.update(&mut tap, uart0_try_read) {
+ if is_recording {
+ logger.log(&prev_tap, &tap);
+
+ model.update(model::Field::Distance(logger.total_distance_cm));
+ }
+
+ model.update(model::Field::UnixTime(tap.unix_time));
+
+ prev_tap = tap;
+
gps_has_fix = true;
gps_has_fix_ticks = systick::now();
}
});
}
+ match view {
+ View::Time => {
+ if time_view.draw(&mut screen, &mut model) {
+ display.draw(&screen);
+ }
+ },
+ View::Distance => {
+ if distance_view.draw(&mut screen, &mut model) {
+ display.draw(&screen);
+ }
+ },
+ }
+
heart_icon_timer.update(|state| {
if state == 1 {
display.hide_icon(display::Icon::Heart);
}
});
- if (gpio::get(gpio::GPIOA) & (1 << 12)) == 0 {
+ shell.update(&mut logger);
+
+ if pta12.has_been_held_for_ms(1500) {
+ is_recording = !is_recording;
+
+ if is_recording {
+ logger.start_recording(&prev_tap);
+
+ view = View::Distance;
+ } else {
+ logger.stop_recording(&prev_tap);
+
+ view = View::Time;
+ }
+
+ model.reset();
+ }
+
+ let new_view = if pte24.has_been_held_for_ms(250) {
+ previous_view(view)
+ } else if pta01.has_been_held_for_ms(250) {
+ next_view(view)
+ } else {
+ view
+ };
+
+ if view != new_view {
+ view = new_view;
+
+ match view {
+ View::Time => time_view.invalidate(),
+ View::Distance => distance_view.invalidate(),
+ }
+ }
+
+ if reset_requested() {
nvic::system_reset();
}
}
projects / gps-watch.git / blobdiff