application: Start and stop recordings by pressing the play button.

[gps-watch.git] / src / application / main.rs

diff --git a/src/application/main.rs b/src/application/main.rs
index 92429e5d4a404d05ed0a4ef9bba4a544cabe60ff..a8101f74f80542373a896f54730b7db90a4e933e 100644 (file)
--- a/src/application/main.rs
+++ b/src/application/main.rs
@@ -30,18 +30,23 @@ extern crate common;
 mod uart0;
 
 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::time::Time;
+use common::mx25l::Mx25l;
+use common::shell::Shell;
+use common::logger::Logger;
 
 extern {
     fn enable_interrupts();
@@ -75,16 +80,68 @@ impl Timer {
     }
 }
 
+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 (gpio::get(gpio::GPIOA) & (1 << 12)) == 0 {
+        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 poll_pta12() -> bool {
+    (gpio::get(gpio::GPIOA) & (1 << 12)) == 0
+}
+
+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();
@@ -104,6 +161,20 @@ pub unsafe extern "C" fn _start() -> ! {
     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);
@@ -112,10 +183,7 @@ pub unsafe extern "C" fn _start() -> ! {
     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();
 
@@ -140,6 +208,17 @@ pub unsafe extern "C" fn _start() -> ! {
 
     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 pta1_start_press_ticks = 0;
+    let mut pta12_was_pressed = poll_pta12();
+    let mut is_recording = false;
+
     let mut gps = gps::Gps::new();
 
     let mut gps_has_fix = false;
@@ -155,7 +234,11 @@ pub unsafe extern "C" fn _start() -> ! {
         let mut show_time = false;
         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);
+            }
+
             prev_tap = tap;
 
             show_time = true;
@@ -215,7 +298,27 @@ pub unsafe extern "C" fn _start() -> ! {
             }
         });
 
-        if (gpio::get(gpio::GPIOA) & (1 << 12)) == 0 {
+        shell.update(&mut logger);
+
+        let pta12_is_pressed = poll_pta12();
+
+        if !pta12_was_pressed && pta12_is_pressed {
+            pta1_start_press_ticks = systick::now();
+        } else if pta12_was_pressed && !pta12_is_pressed {
+            if systick::has_timeout_ms(pta1_start_press_ticks, 1500) {
+                is_recording = !is_recording;
+
+                if is_recording {
+                    logger.start_recording(&prev_tap);
+                } else {
+                    logger.stop_recording(&prev_tap);
+                }
+            }
+        }
+
+        pta12_was_pressed = pta12_is_pressed;
+
+        if reset_requested() {
             nvic::system_reset();
         }
     }