2 * Copyright (c) 2019 Tilman Sauerbeck (tilman at code-monkey de)
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #[link(name="libcommon.rlib")]
35 use common::buffer::Buffer;
36 use common::ringbuf::Ringbuf;
45 use common::usb_serial;
49 use common::mx25l::Mx25l;
50 use common::shell::Shell;
51 use common::logger::Logger;
54 fn enable_interrupts();
56 static mut cdc_tx_buf: Buffer;
59 #[derive(Clone, Copy, PartialEq)]
69 last_update_ticks: u32,
73 pub fn new(delay_ms: u32) -> Timer {
77 last_update_ticks: systick::now(),
81 pub fn update<F>(&mut self, func: F)
82 where F: FnOnce(u32) -> u32
84 if systick::has_timeout_ms(self.last_update_ticks, self.delay_ms) {
85 self.state = func(self.state);
87 self.last_update_ticks = systick::now();
92 fn next_view(view: View) -> View {
94 View::Time => View::Distance,
95 View::Distance => View::Pace,
96 View::Pace => View::Time,
100 fn previous_view(view: View) -> View {
102 View::Time => View::Pace,
103 View::Distance => View::Time,
104 View::Pace => View::Distance,
108 fn reset_requested() -> bool {
109 let pta1 = gpio::get(gpio::GPIOA) & (1 << 1);
110 let pte25 = gpio::get(gpio::GPIOE) & (1 << 25);
117 fn panic(_info: &core::panic::PanicInfo) -> ! {
119 if reset_requested() {
120 nvic::system_reset();
125 fn configure_push_buttons() {
126 // Configure lower right push button.
127 gpio::set_direction(gpio::GPIOA, 1 << 1, gpio::Direction::Input);
128 port::set_af(port::PORTA, 1, 1);
129 port::set_pull(port::PORTA, 1, port::Pull::Up);
131 // Configure upper right push button.
132 gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
133 port::set_af(port::PORTA, 12, 1);
134 port::set_pull(port::PORTA, 12, port::Pull::Up);
136 // Configure lower left push button.
137 gpio::set_direction(gpio::GPIOE, 1 << 24, gpio::Direction::Input);
138 port::set_af(port::PORTE, 24, 1);
139 port::set_pull(port::PORTE, 24, port::Pull::Up);
141 // Configure upper left push button.
142 gpio::set_direction(gpio::GPIOE, 1 << 25, gpio::Direction::Input);
143 port::set_af(port::PORTE, 25, 1);
144 port::set_pull(port::PORTE, 25, port::Pull::Up);
146 // Configure middle left push button.
147 gpio::set_direction(gpio::GPIOE, 1 << 31, gpio::Direction::Input);
148 port::set_af(port::PORTE, 31, 1);
149 port::set_pull(port::PORTE, 31, port::Pull::Up);
152 fn uart0_try_read() -> Option<u8> {
154 static mut uart0_rx_buf: Ringbuf;
158 if uart0_rx_buf.is_empty() {
161 Some(uart0_rx_buf.read())
167 pub unsafe extern "C" fn _start() -> ! {
169 clock::enable_osc0();
173 // Configure pins for I2C0.
174 port::set_af(port::PORTC, 8, 2);
175 port::set_af(port::PORTC, 9, 2);
177 i2c::configure(i2c::I2C0);
179 nvic::disable_irq(8); // I2C0
181 // Configure pin for the display's reset line.
182 gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
183 port::set_af(port::PORTB, 16, 1);
185 // Configure pin for the MX25L's chip select line.
186 gpio::set_direction(gpio::GPIOD, 1 << 0, gpio::Direction::Output);
187 port::set_af(port::PORTD, 0, 1);
188 gpio::set(gpio::GPIOD, 1 << 0);
190 // Configure pins for SPI0.
191 port::set_af(port::PORTD, 1, 2);
192 port::set_af(port::PORTD, 2, 5);
193 port::set_af(port::PORTD, 3, 5);
195 spi::configure(spi::SPI0);
197 nvic::disable_irq(10); // SPI0
199 // Configure pins for UART0.
200 port::set_af(port::PORTE, 20, 4);
201 port::set_af(port::PORTE, 21, 4);
203 // Configure pin for the GPS's reset line.
204 gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
205 port::set_af(port::PORTB, 1, 1);
207 configure_push_buttons();
211 usb_serial::init(0xf055, 0x635d);
213 cdc_tx_buf.write(b"\n");
216 let mut display = display::Display::new(gpio::GPIOB, 1 << 16, 0x3c);
221 let mut screen = screen::Screen::new();
223 // Hold GPS in reset while configuring its UART.
224 gpio::clear(gpio::GPIOB, 1);
225 systick::delay_ms(50);
226 uart::configure(uart::UART0);
227 systick::delay_ms(50);
228 gpio::set(gpio::GPIOB, 1);
230 nvic::enable_irq(12); // UART0
232 let mut shell = Shell::new(&mut cdc_tx_buf);
234 let mut mx25l = Mx25l::new(gpio::GPIOD, 1 << 0);
236 let mut logger = Logger::new(&mut mx25l);
239 let mut pta12 = button::Button::new(gpio::GPIOA, 1 << 12);
240 let mut pte24 = button::Button::new(gpio::GPIOE, 1 << 24);
241 let mut pta01 = button::Button::new(gpio::GPIOA, 1 << 1);
242 let mut is_recording = false;
244 let mut gps = gps::Gps::new();
246 let mut gps_has_fix = false;
247 let mut gps_has_fix_ticks = 0;
249 let mut heart_icon_timer = Timer::new(1000);
250 let mut gps_icon_timer = Timer::new(500);
252 let mut prev_tap = gps::TimeAndPos::new();
254 let mut view = View::Time;
256 let mut time_view = views::TimeView::new();
257 let mut distance_view = views::DistanceView::new();
258 let mut pace_view = views::PaceView::new();
260 let mut model = model::Model::new();
263 let mut tap = gps::TimeAndPos::new();
264 let old_gps_has_fix = gps_has_fix;
266 while gps.update(&mut tap, uart0_try_read) {
268 logger.log(&prev_tap, &tap);
270 model.update(model::Field::Distance(logger.total_distance_cm));
271 model.update(model::Field::Pace(logger.pace_s));
274 model.update(model::Field::UnixTime(tap.unix_time));
279 gps_has_fix_ticks = systick::now();
282 // Did GPS fix information expire?
283 if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
287 if gps_has_fix && !old_gps_has_fix {
288 display.show_icon(display::Icon::SatelliteBody);
289 display.show_icon(display::Icon::SatelliteWave1);
290 display.show_icon(display::Icon::SatelliteWave2);
291 } else if !gps_has_fix {
292 gps_icon_timer.update(|state| {
294 display.show_icon(display::Icon::SatelliteWave1);
296 } else if state == 2 {
297 display.show_icon(display::Icon::SatelliteWave2);
299 } else if state == 3 {
300 display.hide_icon(display::Icon::SatelliteBody);
301 display.hide_icon(display::Icon::SatelliteWave1);
302 display.hide_icon(display::Icon::SatelliteWave2);
305 display.show_icon(display::Icon::SatelliteBody);
313 if time_view.draw(&mut screen, &mut model) {
314 display.draw(&screen);
318 if distance_view.draw(&mut screen, &mut model) {
319 display.draw(&screen);
323 if pace_view.draw(&mut screen, &mut model) {
324 display.draw(&screen);
329 heart_icon_timer.update(|state| {
331 display.hide_icon(display::Icon::Heart);
334 display.show_icon(display::Icon::Heart);
339 shell.update(&mut logger);
341 if pta12.has_been_held_for_ms(1500) {
342 is_recording = !is_recording;
345 logger.start_recording(&prev_tap);
349 view = View::Distance;
351 logger.stop_recording(&prev_tap);
357 let new_view = if pte24.has_been_held_for_ms(250) {
359 } else if pta01.has_been_held_for_ms(250) {
365 if view != new_view {
369 View::Time => time_view.invalidate(),
370 View::Distance => distance_view.invalidate(),
371 View::Pace => pace_view.invalidate(),
375 if reset_requested() {
376 nvic::system_reset();