From 66cfd0c96ee91e1987f1842cdee8c2611ee41b67 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 15 Jun 2016 00:23:19 +0200
Subject: added simple fastled animation

---
 usb-rainbow/Makefile        |  50 +++++++++++++++++++++
 usb-rainbow/usb-rainbow.cpp | 105 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 155 insertions(+)
 create mode 100644 usb-rainbow/Makefile
 create mode 100644 usb-rainbow/usb-rainbow.cpp

diff --git a/usb-rainbow/Makefile b/usb-rainbow/Makefile
new file mode 100644
index 0000000..18296ab
--- /dev/null
+++ b/usb-rainbow/Makefile
@@ -0,0 +1,50 @@
+##
+##  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/>.
+##
+
+NAME := usb-rainbow
+BOARD_TYPE := minimus32
+CXX_OBJ := $(NAME).o
+LIBS := util led lufa-descriptor-usbserial usbio
+CXX_LIBS := arduino-stub
+EXTERNAL_LIBS := fastled lufa
+SPREADAVR_PATH := ..
+RESET_FUNC := $(SPREADAVR_PATH)/tools/reset_lufa_cdc_nowait
+RESET_PARAM := '!'
+
+FASTLED_PATH := $(SPREADAVR_PATH)/contrib/FastLED-3.1.0
+
+LUFA_PATH := $(SPREADAVR_PATH)/contrib/lufa-LUFA-151115
+LUFA_OPTS  = -D USB_DEVICE_ONLY
+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
+LUFA_OPTS += -D ORDERED_EP_CONFIG
+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
+LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT
+
+LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\""
+LUFA_OPTS += -D USB_PRODUCT="L\"spreadspace usb-rainbow example\""
+
+LUFA_COMPONENTS := USB USBCLASS
+
+include $(SPREADAVR_PATH)/include.mk
diff --git a/usb-rainbow/usb-rainbow.cpp b/usb-rainbow/usb-rainbow.cpp
new file mode 100644
index 0000000..6465e18
--- /dev/null
+++ b/usb-rainbow/usb-rainbow.cpp
@@ -0,0 +1,105 @@
+/*
+ *  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();
+  }
+}
-- 
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