#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>
+#include <util/delay.h>
#include "lights.h"
static uint16_t button_start[N_BUTTONS];
-static unsigned char button_pressed[N_BUTTONS];
+static unsigned char prev_pin;
-static unsigned char sleep_after_release;
+static unsigned char user_params[MAX_USER_PARAMS] = { 0, 0, 0 };
+static unsigned char user_params_max[MAX_USER_PARAMS] = { 3, 2, 2 };
-void init_buttons()
+static unsigned char user_params_state = 0;
+ /*
+ * Here 0 means "no setup currently in progress",
+ * 1 .. MAX_USER_PARAMS means "now short presses increase or decrease
+ * the value of user_params[user_params_state-1]"
+ */
+
+static uint16_t user_params_starttime;
+
+static void inline set_status_led(unsigned char n, pattern_t *pattern)
{
- DDRB &= ~(_BV(PB4) | _BV(PB6));
- PORTB |= _BV(PB4) | _BV(PB6);
+ led_set_pattern(n + N_PWMLEDS, pattern);
+}
- sleep_after_release = 0;
- // log_byte(PORTB);
+pattern_t *status_pattern_select(unsigned char n)
+{
+ if (user_params_state) // Setup in progress
+ return number_pattern(n == 0
+ ? user_params_state
+ : 1 + user_params[user_params_state-1]
+ );
+ else if (!(prev_pin & _BV(PA3)) || !(prev_pin & _BV(PA4)))
+ // at least one button is pressed
+ return off_pattern;
+ // otherwise, an ordinary state
+ if (n == 0) {
+ // error led
+ return number_pattern(1 + ambient_zone);
+ } else {
+ return jiffies > 500 ? number_pattern(2) : zero_pattern; // for now
+ }
}
-static void inline long_press(unsigned char n)
+static void toggle_bright_mode()
{
- sleep_after_release = 1;
- gpio_set(1, 1);
+ // TODO
}
-static void do_sleep()
+static void set_panic_mode()
{
- // led_set_status(2);
- // MCUCR |= _BV(ISC00); // any edge generates IRQ
- log_byte(0xb0);
- log_flush();
- set_sleep_mode(SLEEP_MODE_PWR_DOWN);
- PORTA = 0;
- PORTB = 0;
- DDRA = 0;
- DDRB = 0;
- GIMSK |= _BV(INT0); // enable INT0
- sleep_enable();
- sei();
- sleep_cpu();
- sleep_disable();
- cli();
- GIMSK &= ~_BV(INT0); // disable INT0
- hw_setup();
+ // TODO
}
-static void inline short_press(unsigned char n)
+unsigned char get_user_param(unsigned char param)
{
- led_set_status(1);
+ if (param < MAX_USER_PARAMS)
+ return user_params[param];
+ return 0; // FIXME: internal error?
}
-void timer_check_buttons()
+static inline void short_press(unsigned char button)
+{
+ unsigned char param;
+
+ if (user_params_state == 0) {
+ if (button == 0)
+ toggle_bright_mode();
+ else
+ set_panic_mode();
+ return;
+ }
+
+ param = user_params_state-1;
+
+ if (button == 0) {
+ if (user_params[param])
+ user_params[param]--;
+ else
+ user_params[param] = user_params_max[param]-1;
+ } else {
+ user_params[param]++;
+
+ if (user_params[param] >= user_params_max[param])
+ user_params[param] = 0;
+ }
+ // FIXME: notify somebody about user_params change?
+
+ set_status_led(1, status_pattern_select(1));
+
+ user_params_starttime = jiffies;
+}
+
+static inline void long_press(unsigned char button)
{
- unsigned char pinb = PINB;
- unsigned char i;
- unsigned char port_states[N_BUTTONS] = {
- pinb & _BV(PB6),
- pinb & _BV(PB4),
- };
- for (i = 0; i < N_BUTTONS; i++) {
- if (!port_states[i]) { // is pressed
- if (button_pressed[i] == 0) {
- // begin of button press
- button_pressed[i] = 1;
- button_start[i] = jiffies;
-#if 0
- // log_byte(0xC0);
- // log_word(jiffies);
-#endif
- } else if (button_pressed[i] == 1) {
- // been already pressed
- uint16_t duration = jiffies - button_start[i];
- if (duration > 80) {
- // long button press
- button_pressed[i] = 2;
- long_press(i);
- }
- }
- } else { // is not pressed
- if (button_pressed[i]) { // just depressed
- uint16_t duration = jiffies - button_start[i];
-#if 1
- log_byte(0xC1);
- log_word(duration);
- log_flush();
-#endif
- button_pressed[i] = 0;
- if (duration > 6 && duration < 30)
- short_press(i);
- if (sleep_after_release)
- do_sleep();
- }
+ if (button == 0) {
+ power_down();
+ return;
+ }
+
+ // button 1 - cycle through states
+ user_params_state++;
+
+ if (user_params_state > MAX_USER_PARAMS)
+ user_params_state = 1;
+
+ set_status_led(0, status_pattern_select(0));
+ set_status_led(1, status_pattern_select(1));
+ user_params_starttime = jiffies;
+}
+
+void init_buttons()
+{
+ DDRA &= ~(_BV(PA3) | _BV(PA4));
+ PORTA |= _BV(PA3) | _BV(PA4);
+
+ button_start[0] = 0;
+ button_start[1] = 0;
+ prev_pin = _BV(PA3) | _BV(PA4);
+ user_params_state = 0;
+}
+
+static void handle_button(unsigned char button, unsigned char cur,
+ unsigned char prev)
+{
+ // BEWARE: pins are at _zero_ when pressed!
+ if (!cur && prev) { // --- just pressed ---
+ button_start[button] = jiffies;
+ set_status_led(button, off_pattern);
+
+ } else if (!cur && !prev) { // --- is still pressed ---
+ uint16_t duration = jiffies - button_start[button];
+
+ if (duration > 80) {
+ set_status_led(button, on_pattern);
+ // acknowledge long press
}
+ } else if (cur && !prev) { // --- just released ---
+ uint16_t duration = jiffies - button_start[button];
+
+ if (duration > 6 && duration < 30) {
+ short_press(button);
+ } else if (duration > 80) {
+ set_status_led(button, off_pattern);
+ long_press(button);
+ }
+ // ignore other button-press durations
}
}
-ISR(INT0_vect)
+void timer_check_buttons()
{
- hw_setup();
- log_byte(0xbb);
- log_flush();
+ unsigned char pin = PINA & (_BV(PA3) | _BV(PA4));
+
+ handle_button(0, pin & _BV(PA3), prev_pin & _BV(PA3));
+ handle_button(1, pin & _BV(PA4), prev_pin & _BV(PA4));
+
+ prev_pin = pin;
+
+ if (user_params_state && jiffies - user_params_starttime > 1000) {
+ user_params_state = 0;
+ set_status_led(0, status_pattern_select(0));
+ set_status_led(1, status_pattern_select(1));
+ }
}
https://www.fi.muni.cz/~kas/git / bike-lights.git / blobdiff