X-Git-Url: http://git.code-monkey.de/?p=gps-watch.git;a=blobdiff_plain;f=src%2Fapplication%2Fmain.rs;h=6e8d37dccdd282a5f6cddae15936864c28277ae2;hp=b1bf3afd24818147146c5a2a89e3773adcdd9372;hb=0910372c57f24036c568f2c35f9c88dc6d1f2d71;hpb=ce5666c12eb4333fd71adb58d8d5ad740fcffe8b

diff --git a/src/application/main.rs b/src/application/main.rs
index b1bf3af..6e8d37d 100644
--- a/src/application/main.rs
+++ b/src/application/main.rs
@@ -22,20 +22,33 @@
  */
 
 #![no_std]
-#![crate_type="staticlib"]
+#![no_main]
 #[link(name="libcommon.rlib")]
 
 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();
@@ -43,9 +56,114 @@ extern {
     static mut cdc_tx_buf: Buffer;
 }
 
+#[derive(Clone, Copy, PartialEq)]
+enum View {
+    Time,
+    Distance,
+}
+
+struct Timer {
+    state: u32,
+    delay_ms: u32,
+    last_update_ticks: u32,
+}
+
+impl Timer {
+    pub fn new(delay_ms: u32) -> Timer {
+        Timer {
+            state: 0,
+            delay_ms: delay_ms,
+            last_update_ticks: systick::now(),
+        }
+    }
+
+    pub fn update<F>(&mut self, func: F)
+        where F: FnOnce(u32) -> u32
+    {
+        if systick::has_timeout_ms(self.last_update_ticks, self.delay_ms) {
+            self.state = func(self.state);
+
+            self.last_update_ticks = systick::now();
+        }
+    }
+}
+
+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 fn main() {
+pub unsafe extern "C" fn _start() -> ! {
     clock::configure();
+    clock::enable_osc0();
     systick::init();
     port::init();
 
@@ -61,10 +179,29 @@ pub unsafe extern fn main() {
     gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
     port::set_af(port::PORTB, 16, 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 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);
+
+    // Configure pin for the GPS's reset line.
+    gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
+    port::set_af(port::PORTB, 1, 1);
+
+    configure_push_buttons();
 
     enable_interrupts();
 
@@ -78,13 +215,153 @@ pub unsafe extern fn main() {
     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);
+    uart::configure(uart::UART0);
+    systick::delay_ms(50);
+    gpio::set(gpio::GPIOB, 1);
+
+    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 gps_has_fix_ticks = 0;
+
+    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 {
-        systick::delay_ms(1000);
+        let mut tap = gps::TimeAndPos::new();
+        let old_gps_has_fix = gps_has_fix;
+
+        while gps.update(&mut tap, uart0_try_read) {
+            if is_recording {
+                logger.log(&prev_tap, &tap);
 
-        cdc_tx_buf.write(b".\n");
-        cdc_tx_buf.flush();
+                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();
+        }
+
+        // Did GPS fix information expire?
+        if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
+            gps_has_fix = false;
+        }
+
+        if gps_has_fix && !old_gps_has_fix {
+            display.show_icon(display::Icon::SatelliteBody);
+            display.show_icon(display::Icon::SatelliteWave1);
+            display.show_icon(display::Icon::SatelliteWave2);
+        } else if !gps_has_fix {
+            gps_icon_timer.update(|state| {
+                if state == 1 {
+                    display.show_icon(display::Icon::SatelliteWave1);
+                    2
+                } else if state == 2 {
+                    display.show_icon(display::Icon::SatelliteWave2);
+                    3
+                } else if state == 3 {
+                    display.hide_icon(display::Icon::SatelliteBody);
+                    display.hide_icon(display::Icon::SatelliteWave1);
+                    display.hide_icon(display::Icon::SatelliteWave2);
+                    0
+                } else {
+                    display.show_icon(display::Icon::SatelliteBody);
+                    1
+                }
+            });
+        }
+
+        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);
+                0
+            } else {
+                display.show_icon(display::Icon::Heart);
+                1
+            }
+        });
+
+        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 (gpio::get(gpio::GPIOA) & (1 << 12)) == 0 {
+        if reset_requested() {
             nvic::system_reset();
         }
     }