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 reset_requested() -> bool {
92 let pta1 = gpio::get(gpio::GPIOA) & (1 << 1);
93 let pte25 = gpio::get(gpio::GPIOE) & (1 << 25);
100 fn panic(_info: &core::panic::PanicInfo) -> ! {
102 if reset_requested() {
103 nvic::system_reset();
108 fn configure_push_buttons() {
109 // Configure lower right push button.
110 gpio::set_direction(gpio::GPIOA, 1 << 1, gpio::Direction::Input);
111 port::set_af(port::PORTA, 1, 1);
112 port::set_pull(port::PORTA, 1, port::Pull::Up);
114 // Configure upper right push button.
115 gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
116 port::set_af(port::PORTA, 12, 1);
117 port::set_pull(port::PORTA, 12, port::Pull::Up);
119 // Configure lower left push button.
120 gpio::set_direction(gpio::GPIOE, 1 << 24, gpio::Direction::Input);
121 port::set_af(port::PORTE, 24, 1);
122 port::set_pull(port::PORTE, 24, port::Pull::Up);
124 // Configure upper left push button.
125 gpio::set_direction(gpio::GPIOE, 1 << 25, gpio::Direction::Input);
126 port::set_af(port::PORTE, 25, 1);
127 port::set_pull(port::PORTE, 25, port::Pull::Up);
129 // Configure middle left push button.
130 gpio::set_direction(gpio::GPIOE, 1 << 31, gpio::Direction::Input);
131 port::set_af(port::PORTE, 31, 1);
132 port::set_pull(port::PORTE, 31, port::Pull::Up);
135 fn uart0_try_read() -> Option<u8> {
137 static mut uart0_rx_buf: Ringbuf;
141 if uart0_rx_buf.is_empty() {
144 Some(uart0_rx_buf.read())
150 pub unsafe extern "C" fn _start() -> ! {
152 clock::enable_osc0();
156 // Configure pins for I2C0.
157 port::set_af(port::PORTC, 8, 2);
158 port::set_af(port::PORTC, 9, 2);
160 i2c::configure(i2c::I2C0);
162 nvic::disable_irq(8); // I2C0
164 // Configure pin for the display's reset line.
165 gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
166 port::set_af(port::PORTB, 16, 1);
168 // Configure pin for the MX25L's chip select line.
169 gpio::set_direction(gpio::GPIOD, 1 << 0, gpio::Direction::Output);
170 port::set_af(port::PORTD, 0, 1);
171 gpio::set(gpio::GPIOD, 1 << 0);
173 // Configure pins for SPI0.
174 port::set_af(port::PORTD, 1, 2);
175 port::set_af(port::PORTD, 2, 5);
176 port::set_af(port::PORTD, 3, 5);
178 spi::configure(spi::SPI0);
180 nvic::disable_irq(10); // SPI0
182 // Configure pins for UART0.
183 port::set_af(port::PORTE, 20, 4);
184 port::set_af(port::PORTE, 21, 4);
186 // Configure pin for the GPS's reset line.
187 gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
188 port::set_af(port::PORTB, 1, 1);
190 configure_push_buttons();
194 usb_serial::init(0xf055, 0x635d);
196 cdc_tx_buf.write(b"\n");
199 let mut display = display::Display::new(gpio::GPIOB, 1 << 16, 0x3c);
204 let mut screen = screen::Screen::new();
206 // Hold GPS in reset while configuring its UART.
207 gpio::clear(gpio::GPIOB, 1);
208 systick::delay_ms(50);
209 uart::configure(uart::UART0);
210 systick::delay_ms(50);
211 gpio::set(gpio::GPIOB, 1);
213 nvic::enable_irq(12); // UART0
215 let mut shell = Shell::new(&mut cdc_tx_buf);
217 let mut mx25l = Mx25l::new(gpio::GPIOD, 1 << 0);
219 let mut logger = Logger::new(&mut mx25l);
222 let mut pta12 = button::Button::new(gpio::GPIOA, 1 << 12);
223 let mut is_recording = false;
225 let mut gps = gps::Gps::new();
227 let mut gps_has_fix = false;
228 let mut gps_has_fix_ticks = 0;
230 let mut heart_icon_timer = Timer::new(1000);
231 let mut gps_icon_timer = Timer::new(500);
233 let mut prev_tap = gps::TimeAndPos::new();
235 let mut view = View::Time;
237 let mut time_view = views::TimeView::new();
238 let mut distance_view = views::DistanceView::new();
240 let mut model = model::Model::new();
243 let mut tap = gps::TimeAndPos::new();
244 let old_gps_has_fix = gps_has_fix;
246 while gps.update(&mut tap, uart0_try_read) {
248 logger.log(&prev_tap, &tap);
250 model.update(model::Field::Distance(logger.total_distance_cm));
253 model.update(model::Field::UnixTime(tap.unix_time));
258 gps_has_fix_ticks = systick::now();
261 // Did GPS fix information expire?
262 if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
266 if gps_has_fix && !old_gps_has_fix {
267 display.show_icon(display::Icon::SatelliteBody);
268 display.show_icon(display::Icon::SatelliteWave1);
269 display.show_icon(display::Icon::SatelliteWave2);
270 } else if !gps_has_fix {
271 gps_icon_timer.update(|state| {
273 display.show_icon(display::Icon::SatelliteWave1);
275 } else if state == 2 {
276 display.show_icon(display::Icon::SatelliteWave2);
278 } else if state == 3 {
279 display.hide_icon(display::Icon::SatelliteBody);
280 display.hide_icon(display::Icon::SatelliteWave1);
281 display.hide_icon(display::Icon::SatelliteWave2);
284 display.show_icon(display::Icon::SatelliteBody);
292 if time_view.draw(&mut screen, &mut model) {
293 display.draw(&screen);
297 if distance_view.draw(&mut screen, &mut model) {
298 display.draw(&screen);
303 heart_icon_timer.update(|state| {
305 display.hide_icon(display::Icon::Heart);
308 display.show_icon(display::Icon::Heart);
313 shell.update(&mut logger);
315 if pta12.has_been_held_for_ms(1500) {
316 is_recording = !is_recording;
319 logger.start_recording(&prev_tap);
321 view = View::Distance;
323 logger.stop_recording(&prev_tap);
331 if reset_requested() {
332 nvic::system_reset();