pattern.c: ADC-timed blinking patterns

projects/step-up/Makefile

 
 PROGRAM=lights
-SRC=main.c logging.c pwm.c adc.c pwmled.c
+SRC=main.c logging.c pwm.c adc.c pwmled.c pattern.c
 OBJ=$(SRC:.c=.o)
 
 

projects/step-up/adc.c

@@ -140,9 +140,21 @@ static void adc1_gain20_adc(uint16_t adcsum)
 }
 #endif
 
+static void inline adc_based_timer()
+{
+	static uint16_t pattern_counter;
+
+	if (++pattern_counter > 250) {
+		pattern_counter = 0;
+		patterns_next_tick();
+	}
+}
+
 ISR(ADC_vect) { // IRQ handler
 	uint16_t adcval = ADCW;
 
+	adc_based_timer();
+
 	if (read_zero) {
 		setup_mux(current_adc);
 		read_zero = 0;

projects/step-up/pattern.c

@@ -3,29 +3,10 @@
 
 #include "lights.h"
 
+#define N_LEDS 1
 static unsigned char led_counters[N_LEDS];
 static pattern_t *led_patterns[N_LEDS];
 
-static 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_END
-};
-
 static pattern_t pattern_num[] = {
 	{ 0, 0x5 },
 	{ 1, 0x1 }, /* 10 */
@@ -81,12 +62,20 @@ pattern_t off_pattern[] = {
 	PATTERN_END
 };
 
+pattern_t on1_pattern[] = {
+	{ 1, 1 },
+	{ 0, 2 },
+	{ 1, 1 },
+	{ 0, 8 },
+	{ 1, 1 },
+	{ 0, 8 },
+	PATTERN_END
+};
+
 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);
+	if (n == 0) {
+		pwmled_on_off(mode);
 	}
 }
 
@@ -107,8 +96,6 @@ void init_pattern()
 
 	for (i = 0; i < N_LEDS; i++)
 		led_set_pattern(i, NULL);
-
-	led_set_pattern(N_PWMLEDS+1, boot_pattern);
 }
 
 pattern_t *number_pattern(unsigned char num, unsigned char inv)
@@ -129,13 +116,21 @@ pattern_t *number_pattern(unsigned char num, unsigned char inv)
 
 static pattern_t *pattern_select(unsigned char n)
 {
+	static unsigned char count;
+	static unsigned char mode;
 	switch(n) {
-	case 0: return pwmled0_pattern_select();
-	case 1: return pwmled1_pattern_select();
-	case 2: return pwmled2_pattern_select();
-	case 3: return status_led_pattern_select();
-	case 4: return illumination_led_pattern_select();
-	case 6: return laser_pattern_select();
+	case 0:
+		if (++count > 2) {
+			count = 0;
+			if (mode == 0) {
+				mode = 3;
+			} else {
+				mode = 0;
+			}
+
+			pwmled_set_target(mode);
+		}
+		return number_pattern(mode ? 2 : 3, 0);
 	default: return NULL;
 	}
 }
@@ -154,14 +149,10 @@ static void inline pattern_finished(unsigned char n)
 
 	led_patterns[n] = NULL;
 
-	if (n < N_PWMLEDS) {
-		for (i = 0; i < N_PWMLEDS; i++)
-			if (led_patterns[i])
-				return;
-
-		/* all pwmleds finished; restart them */
-		for (i = 0; i < N_PWMLEDS; i++)
-			led_set_pattern(i, pattern_select(i));
+	if (n == 0) {
+		led_set_pattern(0, pattern_select(0));
+	}
+#if 0
 	} else if (n == 3) {
 		if (!led_patterns[4])
 			led_set_pattern(4, pattern_select(4));
@@ -171,6 +162,7 @@ static void inline pattern_finished(unsigned char n)
 	} else {
 		led_set_pattern(n, pattern_select(n));
 	}
+#endif
 }
 
 void patterns_next_tick()