#include <avr/io.h>
+#include <stdlib.h> // for NULL
#include "lights.h"
static unsigned char led_counters[N_LEDS];
static pattern_t *led_patterns[N_LEDS];
-pattern_t off_pattern[] = {
- { 0, PATTERN_FOREVER },
+static unsigned char fibonacci[8] = {
+ 0, 1, 2, 3, 5, 8, 13, 21,
};
-pattern_t zero_pattern[] = {
- { 0, 0x10 },
+static pattern_t boot_pattern[] = {
+ { 1, D_5 },
+ { 0, D_5 },
+ { 1, D_3 },
+ { 0, D_3 },
+ { 1, D_2 },
+ { 0, D_2 },
+ { 1, D_1 },
+ { 0, D_1 },
+ { 1, D_1 },
+ { 0, D_1 },
+ { 1, D_1 },
+ { 0, D_1 },
+ { 1, D_1 },
+ { 0, D_1 },
+ { 1, D_8 },
+ { 0, D_8 },
PATTERN_END
};
-pattern_t on_pattern[] = {
- { 1, PATTERN_FOREVER },
-};
-
-pattern_t blink_pattern[] = {
- { 1, 0x4 },
- { 0, 0x8 },
+static pattern_t pattern_num[] = {
+ { 0, D_5 },
+ { 1, D_1 }, /* 10 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 9 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 8 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 7 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 6 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 5 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 4 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 3 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 2 */
+ { 0, D_5 },
+ { 1, D_1 }, /* 1 */
+ { 0, D_13 },
PATTERN_END
};
-pattern_t mode1_pattern[] = {
- { 2, 0x1 },
- { 0, 0x1 },
- { 2, 0x1 },
- { 0, 0x8 },
- { 1, 0x1 },
- { 0, 0x1 },
- { 1, 0x1 },
- { 0, 0x8 },
+static pattern_t pattern_invnum[] = {
+ { 1, D_5 },
+ { 0, D_1 }, /* 10 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 9 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 8 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 7 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 6 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 5 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 4 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 3 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 2 */
+ { 1, D_5 },
+ { 0, D_1 }, /* 1 */
+ { 1, D_13 },
PATTERN_END
};
-pattern_t boot_pattern[] = {
- { 1, 0x6 },
- { 0, 0x6 },
- { 1, 0x3 },
- { 0, 0x3 },
- { 1, 0x2 },
- { 0, 0x2 },
- { 1, 0x1 },
- { 0, 0x1 },
- { 1, 0x1 },
- { 0, 0x1 },
- { 1, 0x1 },
- { 0, 0x1 },
- { 1, 0x1 },
- { 0, 0x1 },
- { 1, 0x10 },
- { 0, 0x10 },
+pattern_t off_pattern[] = {
+ { 0, D_1 },
PATTERN_END
};
-pattern_t pattern_num[] = {
- { 0, 0x5 },
- { 1, 0x1 }, /* 10 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 9 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 8 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 7 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 6 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 5 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 4 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 3 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 2 */
- { 0, 0x5 },
- { 1, 0x1 }, /* 1 */
- { 0, 0x1E },
- PATTERN_END
-};
+/*
+ * This is tricky: we use a single pattern for all three pwmleds,
+ * but on some occasions, we want to be able to modify only a single
+ * pwmled status without affecting other outputs. For example, during
+ * braking, we want to modify only the rear pwmled status. We don't
+ * use a separate "braking" pattern for every other pattern used, but instead
+ * we change the pwmled0 status regardless of the original value when
+ * braking. The rule is the following:
+ * - if during braking the pwmled2 (front) is at mode 2, we switch it to
+ * mode 3 (which has the same target current) to avoid flicker.
+ * - if pwmled0 (rear) is off, we set it to mode 2
+ * (if it is with mode 1, we keep it at mode 1)
+ * TODO: something similar should be done for the "entering the dark area"
+ * condition, where we want to switch pwmled2 (front) on, to mode 2.
+ */
+void pwmleds_update_mode()
+{
+ unsigned char mode, mode0, mode1, mode2;
-static unsigned char test_running;
+ mode = led_patterns[0]->mode;
-static void led_set_mode(unsigned char n, unsigned char mode)
-{
- if (n < N_PWMLEDS) {
- pwmled_set_mode(n, mode);
- } else if (n < N_LEDS) {
- gpio_set(n - N_PWMLEDS, mode);
+ mode0 = mode & 3;
+ mode1 = (mode >> 2) & 1;
+ mode2 = (mode >> 3) & 3;
+
+ if (err_flags.braking && !err_flags.err_battery) {
+ mode0 = 2;
+ if (mode2 == 2)
+ mode2 = 3;
}
+
+ pwmled_set_mode(0, mode0);
+ pwmled_set_mode(1, mode1);
+ pwmled_set_mode(2, mode2);
}
void led_set_pattern(unsigned char n, pattern_t *pattern)
pattern = off_pattern;
led_patterns[n] = pattern;
- led_counters[n] = pattern->duration;
- led_set_mode(n, pattern->mode);
+
+ led_counters[n] = fibonacci[pattern->duration_fib];
+
+ if (n == 0) {
+ pwmleds_update_mode();
+ } else if (n < N_LEDS) {
+ gpio_set(n - 1, pattern->mode);
+ }
}
void init_pattern()
unsigned char i;
for (i = 0; i < N_LEDS; i++)
- led_set_pattern(i, zero_pattern);
+ led_set_pattern(i, NULL);
- led_set_pattern(N_PWMLEDS+1, boot_pattern);
- test_running = 0;
+ led_set_pattern(N_ILLUM_LED, boot_pattern);
}
-pattern_t *number_pattern(unsigned char num)
+pattern_t *number_pattern(unsigned char num, unsigned char inv)
{
- if (num >= 9)
- num = 9;
+ if (num >= 10)
+ num = 10;
+
+ if (inv) {
+ return pattern_invnum
+ + sizeof(pattern_invnum)/sizeof(pattern_t)
+ - 2 - 2*num;
+ } else {
+ return pattern_num
+ + sizeof(pattern_num)/sizeof(pattern_t)
+ - 2 - 2*num;
+ }
+}
- return pattern_num + sizeof(pattern_num)/sizeof(pattern_t)
- - 2 - 2*num;
+static pattern_t *pattern_select(unsigned char n)
+{
+ switch(n) {
+ case 0: return pwmled_pattern_select();
+ case N_STATUS_LED: return status_led_pattern_select();
+ case N_ILLUM_LED: return illumination_led_pattern_select();
+ case N_LASER_LED: return laser_pattern_select();
+ default: return NULL;
+ }
}
-static inline pattern_t *pattern_select(unsigned char n)
+void pattern_reload()
{
- if (n < N_PWMLEDS)
- return mode1_pattern;
- else if (n == 3)
- return status_pattern_select(0);
- else if (n == 4)
- return status_pattern_select(1);
- return off_pattern;
+ unsigned char i;
+
+ for (i = 0; i < N_LEDS; i++)
+ led_set_pattern(i, pattern_select(i));
+}
+
+static void inline pattern_finished(unsigned char n)
+{
+ unsigned char i;
+
+ led_patterns[n] = NULL;
+
+ if (n == 0) {
+ led_set_pattern(0, pattern_select(0));
+ } else if (n == N_STATUS_LED) {
+ if (!led_patterns[N_ILLUM_LED])
+ led_set_pattern(N_ILLUM_LED,
+ pattern_select(N_ILLUM_LED));
+ } else if (n == N_ILLUM_LED) {
+ if (!led_patterns[N_STATUS_LED])
+ led_set_pattern(N_STATUS_LED,
+ pattern_select(N_STATUS_LED));
+ } else {
+ led_set_pattern(n, pattern_select(n));
+ }
}
void patterns_next_tick()
unsigned char i;
for (i = 0; i < N_LEDS; i++) {
- if (led_counters[i] == 0) {
+ if (!led_patterns[i]) {
+ pattern_finished(i);
+ continue;
+ }
+
+ if (--led_counters[i] == 0) {
pattern_t *p = led_patterns[i];
p++;
- if (p->duration == 0) { // END
- p = pattern_select(i);
+ if (p->duration_fib == 0) { // END
+ /* Keep the last state, wait for others */
+ pattern_finished(i);
+ continue;
}
led_set_pattern(i, p);
}
- if (led_counters[i] < PATTERN_FOREVER)
- led_counters[i]--;
}
}
https://www.fi.muni.cz/~kas/git / bike-lights.git / blobdiff