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")]
33 use common::buffer::Buffer;
34 use common::ringbuf::Ringbuf;
43 use common::usb_serial;
47 use common::time::Time;
48 use common::mx25l::Mx25l;
49 use common::shell::Shell;
50 use common::logger::Logger;
53 fn enable_interrupts();
55 static mut cdc_tx_buf: Buffer;
61 last_update_ticks: u32,
65 pub fn new(delay_ms: u32) -> Timer {
69 last_update_ticks: systick::now(),
73 pub fn update<F>(&mut self, func: F)
74 where F: FnOnce(u32) -> u32
76 if systick::has_timeout_ms(self.last_update_ticks, self.delay_ms) {
77 self.state = func(self.state);
79 self.last_update_ticks = systick::now();
84 fn reset_requested() -> bool {
85 let pta1 = gpio::get(gpio::GPIOA) & (1 << 1);
86 let pte25 = gpio::get(gpio::GPIOE) & (1 << 25);
93 fn panic(_info: &core::panic::PanicInfo) -> ! {
95 if reset_requested() {
101 fn configure_push_buttons() {
102 // Configure lower right push button.
103 gpio::set_direction(gpio::GPIOA, 1 << 1, gpio::Direction::Input);
104 port::set_af(port::PORTA, 1, 1);
105 port::set_pull(port::PORTA, 1, port::Pull::Up);
107 // Configure upper right push button.
108 gpio::set_direction(gpio::GPIOA, 1 << 12, gpio::Direction::Input);
109 port::set_af(port::PORTA, 12, 1);
110 port::set_pull(port::PORTA, 12, port::Pull::Up);
112 // Configure lower left push button.
113 gpio::set_direction(gpio::GPIOE, 1 << 24, gpio::Direction::Input);
114 port::set_af(port::PORTE, 24, 1);
115 port::set_pull(port::PORTE, 24, port::Pull::Up);
117 // Configure upper left push button.
118 gpio::set_direction(gpio::GPIOE, 1 << 25, gpio::Direction::Input);
119 port::set_af(port::PORTE, 25, 1);
120 port::set_pull(port::PORTE, 25, port::Pull::Up);
122 // Configure middle left push button.
123 gpio::set_direction(gpio::GPIOE, 1 << 31, gpio::Direction::Input);
124 port::set_af(port::PORTE, 31, 1);
125 port::set_pull(port::PORTE, 31, port::Pull::Up);
128 fn uart0_try_read() -> Option<u8> {
130 static mut uart0_rx_buf: Ringbuf;
134 if uart0_rx_buf.is_empty() {
137 Some(uart0_rx_buf.read())
143 pub unsafe extern "C" fn _start() -> ! {
145 clock::enable_osc0();
149 // Configure pins for I2C0.
150 port::set_af(port::PORTC, 8, 2);
151 port::set_af(port::PORTC, 9, 2);
153 i2c::configure(i2c::I2C0);
155 nvic::disable_irq(8); // I2C0
157 // Configure pin for the display's reset line.
158 gpio::set_direction(gpio::GPIOB, 1 << 16, gpio::Direction::Output);
159 port::set_af(port::PORTB, 16, 1);
161 // Configure pin for the MX25L's chip select line.
162 gpio::set_direction(gpio::GPIOD, 1 << 0, gpio::Direction::Output);
163 port::set_af(port::PORTD, 0, 1);
164 gpio::set(gpio::GPIOD, 1 << 0);
166 // Configure pins for SPI0.
167 port::set_af(port::PORTD, 1, 2);
168 port::set_af(port::PORTD, 2, 5);
169 port::set_af(port::PORTD, 3, 5);
171 spi::configure(spi::SPI0);
173 nvic::disable_irq(10); // SPI0
175 // Configure pins for UART0.
176 port::set_af(port::PORTE, 20, 4);
177 port::set_af(port::PORTE, 21, 4);
179 // Configure pin for the GPS's reset line.
180 gpio::set_direction(gpio::GPIOB, 1 << 1, gpio::Direction::Output);
181 port::set_af(port::PORTB, 1, 1);
183 configure_push_buttons();
187 usb_serial::init(0xf055, 0x635d);
189 cdc_tx_buf.write(b"\n");
192 let mut display = display::Display::new(gpio::GPIOB, 1 << 16, 0x3c);
197 let mut screen = screen::Screen::new();
199 // Hold GPS in reset while configuring its UART.
200 gpio::clear(gpio::GPIOB, 1);
201 systick::delay_ms(50);
202 uart::configure(uart::UART0);
203 systick::delay_ms(50);
204 gpio::set(gpio::GPIOB, 1);
206 nvic::enable_irq(12); // UART0
208 let mut shell = Shell::new(&mut cdc_tx_buf);
210 let mut mx25l = Mx25l::new(gpio::GPIOD, 1 << 0);
212 let mut logger = Logger::new(&mut mx25l);
215 let mut pta12 = button::Button::new(gpio::GPIOA, 1 << 12);
216 let mut is_recording = false;
218 let mut gps = gps::Gps::new();
220 let mut gps_has_fix = false;
221 let mut gps_has_fix_ticks = 0;
223 let mut heart_icon_timer = Timer::new(1000);
224 let mut gps_icon_timer = Timer::new(500);
226 let mut prev_tap = gps::TimeAndPos::new();
228 let mut total_distance_cm = 0;
231 let mut tap = gps::TimeAndPos::new();
232 let mut show_time = false;
233 let mut show_distance = false;
234 let old_gps_has_fix = gps_has_fix;
236 while gps.update(&mut tap, uart0_try_read) {
238 logger.log(&prev_tap, &tap);
240 total_distance_cm += tap.distance_cm(&prev_tap) as u32;
242 show_distance = true;
250 gps_has_fix_ticks = systick::now();
253 // Did GPS fix information expire?
254 if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
258 if gps_has_fix && !old_gps_has_fix {
259 display.show_icon(display::Icon::SatelliteBody);
260 display.show_icon(display::Icon::SatelliteWave1);
261 display.show_icon(display::Icon::SatelliteWave2);
262 } else if !gps_has_fix {
263 gps_icon_timer.update(|state| {
265 display.show_icon(display::Icon::SatelliteWave1);
267 } else if state == 2 {
268 display.show_icon(display::Icon::SatelliteWave2);
270 } else if state == 3 {
271 display.hide_icon(display::Icon::SatelliteBody);
272 display.hide_icon(display::Icon::SatelliteWave1);
273 display.hide_icon(display::Icon::SatelliteWave2);
276 display.show_icon(display::Icon::SatelliteBody);
283 let mut distance_m_s = [b' '; 8];
285 common::fmt::fmt_u32(&mut distance_m_s, total_distance_cm / 100);
288 screen.draw_text(&distance_m_s);
290 display.draw(&screen);
291 } else if show_time {
292 if let Some(tm) = Time::from_unix_time(prev_tap.unix_time) {
293 let mut time_s = [b' '; 8];
294 tm.fmt_time(&mut time_s);
297 screen.draw_text(&time_s);
299 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 logger.stop_recording(&prev_tap);
324 total_distance_cm = 0;
327 if reset_requested() {
328 nvic::system_reset();