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-rw-r--r--usb-rainbow/usb-rainbow.cpp105
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diff --git a/usb-rainbow/usb-rainbow.cpp b/usb-rainbow/usb-rainbow.cpp
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+/*
+ * spreadspace avr utils
+ *
+ *
+ * Copyright (C) 2013-2016 Christian Pointner <equinox@spreadspace.org>
+ *
+ * This file is part of spreadspace avr utils.
+ *
+ * spreadspace avr utils is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * spreadspace avr utils is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+#include <stdio.h>
+
+#include "util.h"
+#include "led.h"
+#include "usbio.h"
+
+#include "Arduino.h"
+#include "FastLED.h"
+
+
+
+
+#define NUM_LEDS 8
+#define DATA_PIN 1
+CRGB leds[NUM_LEDS];
+
+void fastled_init()
+{
+ arduino_init();
+ FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
+ FastLED.setBrightness(10);
+}
+
+void rainbow_init()
+{
+ fill_solid(leds, NUM_LEDS, CRGB::Black);
+ FastLED.show();
+}
+
+void rainbow_task()
+{
+ static uint8_t idx= 0;
+ for(int i = 0; i < NUM_LEDS; i++) {
+ uint8_t hue = ((80 / NUM_LEDS ) * i) + idx;
+ leds[i] = CHSV(hue, 255, 255);
+ }
+
+ FastLED.show();
+ delay(5);
+ idx++;
+}
+
+void handle_cmd(uint8_t cmd)
+{
+ switch(cmd) {
+ case '0': led_off(); break;
+ case '1': led_on(); break;
+ case '!': reset2bootloader(); break;
+ default: printf("error\r\n"); return;
+ }
+ printf("ok\r\n");
+}
+
+int main(void)
+{
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ cpu_init();
+ led_init();
+ usbio_init();
+ fastled_init();
+ sei();
+
+ rainbow_init();
+ for(;;) {
+ int16_t BytesReceived = usbio_bytes_received();
+ while(BytesReceived > 0) {
+ int ReceivedByte = fgetc(stdin);
+ if(ReceivedByte != EOF) {
+ handle_cmd(ReceivedByte);
+ }
+ BytesReceived--;
+ }
+
+ usbio_task();
+ rainbow_task();
+ }
+}