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)]
68 last_update_ticks: u32,
72 pub fn new(delay_ms: u32) -> Timer {
76 last_update_ticks: systick::now(),
80 pub fn update<F>(&mut self, func: F)
81 where F: FnOnce(u32) -> u32
83 if systick::has_timeout_ms(self.last_update_ticks, self.delay_ms) {
84 self.state = func(self.state);
86 self.last_update_ticks = systick::now();
91 fn next_view(view: View) -> View {
93 View::Time => View::Distance,
94 View::Distance => View::Time,
98 fn previous_view(view: View) -> View {
100 View::Time => View::Distance,
101 View::Distance => View::Time,
105 fn reset_requested() -> bool {
106 let pta1 = gpio::get(gpio::GPIOA) & (1 << 1);
107 let pte25 = gpio::get(gpio::GPIOE) & (1 << 25);
114 fn panic(_info: &core::panic::PanicInfo) -> ! {
116 if reset_requested() {
117 nvic::system_reset();
122 fn configure_push_buttons() {
123 // Configure lower right push button.
124 gpio::set_direction(gpio::GPIOA, 1 << 1, gpio::Direction::Input);
125 port::set_af(port::PORTA, 1, 1);
126 port::set_pull(port::PORTA, 1, port::Pull::Up);
128 // Configure upper right push button.
129 gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
130 port::set_af(port::PORTA, 12, 1);
131 port::set_pull(port::PORTA, 12, port::Pull::Up);
133 // Configure lower left push button.
134 gpio::set_direction(gpio::GPIOE, 1 << 24, gpio::Direction::Input);
135 port::set_af(port::PORTE, 24, 1);
136 port::set_pull(port::PORTE, 24, port::Pull::Up);
138 // Configure upper left push button.
139 gpio::set_direction(gpio::GPIOE, 1 << 25, gpio::Direction::Input);
140 port::set_af(port::PORTE, 25, 1);
141 port::set_pull(port::PORTE, 25, port::Pull::Up);
143 // Configure middle left push button.
144 gpio::set_direction(gpio::GPIOE, 1 << 31, gpio::Direction::Input);
145 port::set_af(port::PORTE, 31, 1);
146 port::set_pull(port::PORTE, 31, port::Pull::Up);
149 fn uart0_try_read() -> Option<u8> {
151 static mut uart0_rx_buf: Ringbuf;
155 if uart0_rx_buf.is_empty() {
158 Some(uart0_rx_buf.read())
164 pub unsafe extern "C" fn _start() -> ! {
166 clock::enable_osc0();
170 // Configure pins for I2C0.
171 port::set_af(port::PORTC, 8, 2);
172 port::set_af(port::PORTC, 9, 2);
174 i2c::configure(i2c::I2C0);
176 nvic::disable_irq(8); // I2C0
178 // Configure pin for the display's reset line.
179 gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
180 port::set_af(port::PORTB, 16, 1);
182 // Configure pin for the MX25L's chip select line.
183 gpio::set_direction(gpio::GPIOD, 1 << 0, gpio::Direction::Output);
184 port::set_af(port::PORTD, 0, 1);
185 gpio::set(gpio::GPIOD, 1 << 0);
187 // Configure pins for SPI0.
188 port::set_af(port::PORTD, 1, 2);
189 port::set_af(port::PORTD, 2, 5);
190 port::set_af(port::PORTD, 3, 5);
192 spi::configure(spi::SPI0);
194 nvic::disable_irq(10); // SPI0
196 // Configure pins for UART0.
197 port::set_af(port::PORTE, 20, 4);
198 port::set_af(port::PORTE, 21, 4);
200 // Configure pin for the GPS's reset line.
201 gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
202 port::set_af(port::PORTB, 1, 1);
204 configure_push_buttons();
208 usb_serial::init(0xf055, 0x635d);
210 cdc_tx_buf.write(b"\n");
213 let mut display = display::Display::new(gpio::GPIOB, 1 << 16, 0x3c);
218 let mut screen = screen::Screen::new();
220 // Hold GPS in reset while configuring its UART.
221 gpio::clear(gpio::GPIOB, 1);
222 systick::delay_ms(50);
223 uart::configure(uart::UART0);
224 systick::delay_ms(50);
225 gpio::set(gpio::GPIOB, 1);
227 nvic::enable_irq(12); // UART0
229 let mut shell = Shell::new(&mut cdc_tx_buf);
231 let mut mx25l = Mx25l::new(gpio::GPIOD, 1 << 0);
233 let mut logger = Logger::new(&mut mx25l);
236 let mut pta12 = button::Button::new(gpio::GPIOA, 1 << 12);
237 let mut pte24 = button::Button::new(gpio::GPIOE, 1 << 24);
238 let mut pta01 = button::Button::new(gpio::GPIOA, 1 << 1);
239 let mut is_recording = false;
241 let mut gps = gps::Gps::new();
243 let mut gps_has_fix = false;
244 let mut gps_has_fix_ticks = 0;
246 let mut heart_icon_timer = Timer::new(1000);
247 let mut gps_icon_timer = Timer::new(500);
249 let mut prev_tap = gps::TimeAndPos::new();
251 let mut view = View::Time;
253 let mut time_view = views::TimeView::new();
254 let mut distance_view = views::DistanceView::new();
256 let mut model = model::Model::new();
259 let mut tap = gps::TimeAndPos::new();
260 let old_gps_has_fix = gps_has_fix;
262 while gps.update(&mut tap, uart0_try_read) {
264 logger.log(&prev_tap, &tap);
266 model.update(model::Field::Distance(logger.total_distance_cm));
269 model.update(model::Field::UnixTime(tap.unix_time));
274 gps_has_fix_ticks = systick::now();
277 // Did GPS fix information expire?
278 if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
282 if gps_has_fix && !old_gps_has_fix {
283 display.show_icon(display::Icon::SatelliteBody);
284 display.show_icon(display::Icon::SatelliteWave1);
285 display.show_icon(display::Icon::SatelliteWave2);
286 } else if !gps_has_fix {
287 gps_icon_timer.update(|state| {
289 display.show_icon(display::Icon::SatelliteWave1);
291 } else if state == 2 {
292 display.show_icon(display::Icon::SatelliteWave2);
294 } else if state == 3 {
295 display.hide_icon(display::Icon::SatelliteBody);
296 display.hide_icon(display::Icon::SatelliteWave1);
297 display.hide_icon(display::Icon::SatelliteWave2);
300 display.show_icon(display::Icon::SatelliteBody);
308 if time_view.draw(&mut screen, &mut model) {
309 display.draw(&screen);
313 if distance_view.draw(&mut screen, &mut model) {
314 display.draw(&screen);
319 heart_icon_timer.update(|state| {
321 display.hide_icon(display::Icon::Heart);
324 display.show_icon(display::Icon::Heart);
329 shell.update(&mut logger);
331 if pta12.has_been_held_for_ms(1500) {
332 is_recording = !is_recording;
335 logger.start_recording(&prev_tap);
339 view = View::Distance;
341 logger.stop_recording(&prev_tap);
347 let new_view = if pte24.has_been_held_for_ms(250) {
349 } else if pta01.has_been_held_for_ms(250) {
355 if view != new_view {
359 View::Time => time_view.invalidate(),
360 View::Distance => distance_view.invalidate(),
364 if reset_requested() {
365 nvic::system_reset();