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-rw-r--r--drivers/avr/analog.c69
-rw-r--r--drivers/avr/analog.h52
-rw-r--r--drivers/avr/glcdfont.c276
-rw-r--r--drivers/avr/pro_micro.h362
-rw-r--r--drivers/avr/ssd1306.c325
-rw-r--r--drivers/avr/ssd1306.h93
-rw-r--r--drivers/avr/ws2812.c342
-rw-r--r--drivers/avr/ws2812.h91
8 files changed, 1610 insertions, 0 deletions
diff --git a/drivers/avr/analog.c b/drivers/avr/analog.c
new file mode 100644
index 0000000000..1ec38df75d
--- /dev/null
+++ b/drivers/avr/analog.c
@@ -0,0 +1,69 @@
+/* Copyright 2015 Jack Humbert
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Simple analog to digitial conversion
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <stdint.h>
+#include "analog.h"
+
+
+static uint8_t aref = (1<<REFS0); // default to AREF = Vcc
+
+
+void analogReference(uint8_t mode)
+{
+ aref = mode & 0xC0;
+}
+
+
+// Arduino compatible pin input
+int16_t analogRead(uint8_t pin)
+{
+#if defined(__AVR_ATmega32U4__)
+ static const uint8_t PROGMEM pin_to_mux[] = {
+ 0x00, 0x01, 0x04, 0x05, 0x06, 0x07,
+ 0x25, 0x24, 0x23, 0x22, 0x21, 0x20};
+ if (pin >= 12) return 0;
+ return adc_read(pgm_read_byte(pin_to_mux + pin));
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+ if (pin >= 8) return 0;
+ return adc_read(pin);
+#else
+ return 0;
+#endif
+}
+
+// Mux input
+int16_t adc_read(uint8_t mux)
+{
+#if defined(__AVR_AT90USB162__)
+ return 0;
+#else
+ uint8_t low;
+
+ ADCSRA = (1<<ADEN) | ADC_PRESCALER; // enable ADC
+ ADCSRB = (1<<ADHSM) | (mux & 0x20); // high speed mode
+ ADMUX = aref | (mux & 0x1F); // configure mux input
+ ADCSRA = (1<<ADEN) | ADC_PRESCALER | (1<<ADSC); // start the conversion
+ while (ADCSRA & (1<<ADSC)) ; // wait for result
+ low = ADCL; // must read LSB first
+ return (ADCH << 8) | low; // must read MSB only once!
+#endif
+}
+
+
diff --git a/drivers/avr/analog.h b/drivers/avr/analog.h
new file mode 100644
index 0000000000..8d93de7dc2
--- /dev/null
+++ b/drivers/avr/analog.h
@@ -0,0 +1,52 @@
+/* Copyright 2015 Jack Humbert
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _analog_h_included__
+#define _analog_h_included__
+
+#include <stdint.h>
+
+void analogReference(uint8_t mode);
+int16_t analogRead(uint8_t pin);
+int16_t adc_read(uint8_t mux);
+
+#define ADC_REF_POWER (1<<REFS0)
+#define ADC_REF_INTERNAL ((1<<REFS1) | (1<<REFS0))
+#define ADC_REF_EXTERNAL (0)
+
+// These prescaler values are for high speed mode, ADHSM = 1
+#if F_CPU == 16000000L
+#define ADC_PRESCALER ((1<<ADPS2) | (1<<ADPS1))
+#elif F_CPU == 8000000L
+#define ADC_PRESCALER ((1<<ADPS2) | (1<<ADPS0))
+#elif F_CPU == 4000000L
+#define ADC_PRESCALER ((1<<ADPS2))
+#elif F_CPU == 2000000L
+#define ADC_PRESCALER ((1<<ADPS1) | (1<<ADPS0))
+#elif F_CPU == 1000000L
+#define ADC_PRESCALER ((1<<ADPS1))
+#else
+#define ADC_PRESCALER ((1<<ADPS0))
+#endif
+
+// some avr-libc versions do not properly define ADHSM
+#if defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+#if !defined(ADHSM)
+#define ADHSM (7)
+#endif
+#endif
+
+#endif
diff --git a/drivers/avr/glcdfont.c b/drivers/avr/glcdfont.c
new file mode 100644
index 0000000000..6f88bd23a7
--- /dev/null
+++ b/drivers/avr/glcdfont.c
@@ -0,0 +1,276 @@
+// This is the 'classic' fixed-space bitmap font for Adafruit_GFX since 1.0.
+// See gfxfont.h for newer custom bitmap font info.
+
+#ifndef FONT5X7_H
+#define FONT5X7_H
+
+#ifdef __AVR__
+ #include <avr/io.h>
+ #include <avr/pgmspace.h>
+#elif defined(ESP8266)
+ #include <pgmspace.h>
+#else
+ #define PROGMEM
+#endif
+
+// Standard ASCII 5x7 font
+
+static const unsigned char font[] PROGMEM = {
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
+ 0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
+ 0x1C, 0x3E, 0x7C, 0x3E, 0x1C,
+ 0x18, 0x3C, 0x7E, 0x3C, 0x18,
+ 0x1C, 0x57, 0x7D, 0x57, 0x1C,
+ 0x1C, 0x5E, 0x7F, 0x5E, 0x1C,
+ 0x00, 0x18, 0x3C, 0x18, 0x00,
+ 0xFF, 0xE7, 0xC3, 0xE7, 0xFF,
+ 0x00, 0x18, 0x24, 0x18, 0x00,
+ 0xFF, 0xE7, 0xDB, 0xE7, 0xFF,
+ 0x30, 0x48, 0x3A, 0x06, 0x0E,
+ 0x26, 0x29, 0x79, 0x29, 0x26,
+ 0x40, 0x7F, 0x05, 0x05, 0x07,
+ 0x40, 0x7F, 0x05, 0x25, 0x3F,
+ 0x5A, 0x3C, 0xE7, 0x3C, 0x5A,
+ 0x7F, 0x3E, 0x1C, 0x1C, 0x08,
+ 0x08, 0x1C, 0x1C, 0x3E, 0x7F,
+ 0x14, 0x22, 0x7F, 0x22, 0x14,
+ 0x5F, 0x5F, 0x00, 0x5F, 0x5F,
+ 0x06, 0x09, 0x7F, 0x01, 0x7F,
+ 0x00, 0x66, 0x89, 0x95, 0x6A,
+ 0x60, 0x60, 0x60, 0x60, 0x60,
+ 0x94, 0xA2, 0xFF, 0xA2, 0x94,
+ 0x08, 0x04, 0x7E, 0x04, 0x08,
+ 0x10, 0x20, 0x7E, 0x20, 0x10,
+ 0x08, 0x08, 0x2A, 0x1C, 0x08,
+ 0x08, 0x1C, 0x2A, 0x08, 0x08,
+ 0x1E, 0x10, 0x10, 0x10, 0x10,
+ 0x0C, 0x1E, 0x0C, 0x1E, 0x0C,
+ 0x30, 0x38, 0x3E, 0x38, 0x30,
+ 0x06, 0x0E, 0x3E, 0x0E, 0x06,
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x5F, 0x00, 0x00,
+ 0x00, 0x07, 0x00, 0x07, 0x00,
+ 0x14, 0x7F, 0x14, 0x7F, 0x14,
+ 0x24, 0x2A, 0x7F, 0x2A, 0x12,
+ 0x23, 0x13, 0x08, 0x64, 0x62,
+ 0x36, 0x49, 0x56, 0x20, 0x50,
+ 0x00, 0x08, 0x07, 0x03, 0x00,
+ 0x00, 0x1C, 0x22, 0x41, 0x00,
+ 0x00, 0x41, 0x22, 0x1C, 0x00,
+ 0x2A, 0x1C, 0x7F, 0x1C, 0x2A,
+ 0x08, 0x08, 0x3E, 0x08, 0x08,
+ 0x00, 0x80, 0x70, 0x30, 0x00,
+ 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0x00, 0x00, 0x60, 0x60, 0x00,
+ 0x20, 0x10, 0x08, 0x04, 0x02,
+ 0x3E, 0x51, 0x49, 0x45, 0x3E,
+ 0x00, 0x42, 0x7F, 0x40, 0x00,
+ 0x72, 0x49, 0x49, 0x49, 0x46,
+ 0x21, 0x41, 0x49, 0x4D, 0x33,
+ 0x18, 0x14, 0x12, 0x7F, 0x10,
+ 0x27, 0x45, 0x45, 0x45, 0x39,
+ 0x3C, 0x4A, 0x49, 0x49, 0x31,
+ 0x41, 0x21, 0x11, 0x09, 0x07,
+ 0x36, 0x49, 0x49, 0x49, 0x36,
+ 0x46, 0x49, 0x49, 0x29, 0x1E,
+ 0x00, 0x00, 0x14, 0x00, 0x00,
+ 0x00, 0x40, 0x34, 0x00, 0x00,
+ 0x00, 0x08, 0x14, 0x22, 0x41,
+ 0x14, 0x14, 0x14, 0x14, 0x14,
+ 0x00, 0x41, 0x22, 0x14, 0x08,
+ 0x02, 0x01, 0x59, 0x09, 0x06,
+ 0x3E, 0x41, 0x5D, 0x59, 0x4E,
+ 0x7C, 0x12, 0x11, 0x12, 0x7C,
+ 0x7F, 0x49, 0x49, 0x49, 0x36,
+ 0x3E, 0x41, 0x41, 0x41, 0x22,
+ 0x7F, 0x41, 0x41, 0x41, 0x3E,
+ 0x7F, 0x49, 0x49, 0x49, 0x41,
+ 0x7F, 0x09, 0x09, 0x09, 0x01,
+ 0x3E, 0x41, 0x41, 0x51, 0x73,
+ 0x7F, 0x08, 0x08, 0x08, 0x7F,
+ 0x00, 0x41, 0x7F, 0x41, 0x00,
+ 0x20, 0x40, 0x41, 0x3F, 0x01,
+ 0x7F, 0x08, 0x14, 0x22, 0x41,
+ 0x7F, 0x40, 0x40, 0x40, 0x40,
+ 0x7F, 0x02, 0x1C, 0x02, 0x7F,
+ 0x7F, 0x04, 0x08, 0x10, 0x7F,
+ 0x3E, 0x41, 0x41, 0x41, 0x3E,
+ 0x7F, 0x09, 0x09, 0x09, 0x06,
+ 0x3E, 0x41, 0x51, 0x21, 0x5E,
+ 0x7F, 0x09, 0x19, 0x29, 0x46,
+ 0x26, 0x49, 0x49, 0x49, 0x32,
+ 0x03, 0x01, 0x7F, 0x01, 0x03,
+ 0x3F, 0x40, 0x40, 0x40, 0x3F,
+ 0x1F, 0x20, 0x40, 0x20, 0x1F,
+ 0x3F, 0x40, 0x38, 0x40, 0x3F,
+ 0x63, 0x14, 0x08, 0x14, 0x63,
+ 0x03, 0x04, 0x78, 0x04, 0x03,
+ 0x61, 0x59, 0x49, 0x4D, 0x43,
+ 0x00, 0x7F, 0x41, 0x41, 0x41,
+ 0x02, 0x04, 0x08, 0x10, 0x20,
+ 0x00, 0x41, 0x41, 0x41, 0x7F,
+ 0x04, 0x02, 0x01, 0x02, 0x04,
+ 0x40, 0x40, 0x40, 0x40, 0x40,
+ 0x00, 0x03, 0x07, 0x08, 0x00,
+ 0x20, 0x54, 0x54, 0x78, 0x40,
+ 0x7F, 0x28, 0x44, 0x44, 0x38,
+ 0x38, 0x44, 0x44, 0x44, 0x28,
+ 0x38, 0x44, 0x44, 0x28, 0x7F,
+ 0x38, 0x54, 0x54, 0x54, 0x18,
+ 0x00, 0x08, 0x7E, 0x09, 0x02,
+ 0x18, 0xA4, 0xA4, 0x9C, 0x78,
+ 0x7F, 0x08, 0x04, 0x04, 0x78,
+ 0x00, 0x44, 0x7D, 0x40, 0x00,
+ 0x20, 0x40, 0x40, 0x3D, 0x00,
+ 0x7F, 0x10, 0x28, 0x44, 0x00,
+ 0x00, 0x41, 0x7F, 0x40, 0x00,
+ 0x7C, 0x04, 0x78, 0x04, 0x78,
+ 0x7C, 0x08, 0x04, 0x04, 0x78,
+ 0x38, 0x44, 0x44, 0x44, 0x38,
+ 0xFC, 0x18, 0x24, 0x24, 0x18,
+ 0x18, 0x24, 0x24, 0x18, 0xFC,
+ 0x7C, 0x08, 0x04, 0x04, 0x08,
+ 0x48, 0x54, 0x54, 0x54, 0x24,
+ 0x04, 0x04, 0x3F, 0x44, 0x24,
+ 0x3C, 0x40, 0x40, 0x20, 0x7C,
+ 0x1C, 0x20, 0x40, 0x20, 0x1C,
+ 0x3C, 0x40, 0x30, 0x40, 0x3C,
+ 0x44, 0x28, 0x10, 0x28, 0x44,
+ 0x4C, 0x90, 0x90, 0x90, 0x7C,
+ 0x44, 0x64, 0x54, 0x4C, 0x44,
+ 0x00, 0x08, 0x36, 0x41, 0x00,
+ 0x00, 0x00, 0x77, 0x00, 0x00,
+ 0x00, 0x41, 0x36, 0x08, 0x00,
+ 0x02, 0x01, 0x02, 0x04, 0x02,
+ 0x3C, 0x26, 0x23, 0x26, 0x3C,
+ 0x1E, 0xA1, 0xA1, 0x61, 0x12,
+ 0x3A, 0x40, 0x40, 0x20, 0x7A,
+ 0x38, 0x54, 0x54, 0x55, 0x59,
+ 0x21, 0x55, 0x55, 0x79, 0x41,
+ 0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut
+ 0x21, 0x55, 0x54, 0x78, 0x40,
+ 0x20, 0x54, 0x55, 0x79, 0x40,
+ 0x0C, 0x1E, 0x52, 0x72, 0x12,
+ 0x39, 0x55, 0x55, 0x55, 0x59,
+ 0x39, 0x54, 0x54, 0x54, 0x59,
+ 0x39, 0x55, 0x54, 0x54, 0x58,
+ 0x00, 0x00, 0x45, 0x7C, 0x41,
+ 0x00, 0x02, 0x45, 0x7D, 0x42,
+ 0x00, 0x01, 0x45, 0x7C, 0x40,
+ 0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut
+ 0xF0, 0x28, 0x25, 0x28, 0xF0,
+ 0x7C, 0x54, 0x55, 0x45, 0x00,
+ 0x20, 0x54, 0x54, 0x7C, 0x54,
+ 0x7C, 0x0A, 0x09, 0x7F, 0x49,
+ 0x32, 0x49, 0x49, 0x49, 0x32,
+ 0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut
+ 0x32, 0x4A, 0x48, 0x48, 0x30,
+ 0x3A, 0x41, 0x41, 0x21, 0x7A,
+ 0x3A, 0x42, 0x40, 0x20, 0x78,
+ 0x00, 0x9D, 0xA0, 0xA0, 0x7D,
+ 0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut
+ 0x3D, 0x40, 0x40, 0x40, 0x3D,
+ 0x3C, 0x24, 0xFF, 0x24, 0x24,
+ 0x48, 0x7E, 0x49, 0x43, 0x66,
+ 0x2B, 0x2F, 0xFC, 0x2F, 0x2B,
+ 0xFF, 0x09, 0x29, 0xF6, 0x20,
+ 0xC0, 0x88, 0x7E, 0x09, 0x03,
+ 0x20, 0x54, 0x54, 0x79, 0x41,
+ 0x00, 0x00, 0x44, 0x7D, 0x41,
+ 0x30, 0x48, 0x48, 0x4A, 0x32,
+ 0x38, 0x40, 0x40, 0x22, 0x7A,
+ 0x00, 0x7A, 0x0A, 0x0A, 0x72,
+ 0x7D, 0x0D, 0x19, 0x31, 0x7D,
+ 0x26, 0x29, 0x29, 0x2F, 0x28,
+ 0x26, 0x29, 0x29, 0x29, 0x26,
+ 0x30, 0x48, 0x4D, 0x40, 0x20,
+ 0x38, 0x08, 0x08, 0x08, 0x08,
+ 0x08, 0x08, 0x08, 0x08, 0x38,
+ 0x2F, 0x10, 0xC8, 0xAC, 0xBA,
+ 0x2F, 0x10, 0x28, 0x34, 0xFA,
+ 0x00, 0x00, 0x7B, 0x00, 0x00,
+ 0x08, 0x14, 0x2A, 0x14, 0x22,
+ 0x22, 0x14, 0x2A, 0x14, 0x08,
+ 0x55, 0x00, 0x55, 0x00, 0x55, // #176 (25% block) missing in old code
+ 0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block
+ 0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block
+ 0x00, 0x00, 0x00, 0xFF, 0x00,
+ 0x10, 0x10, 0x10, 0xFF, 0x00,
+ 0x14, 0x14, 0x14, 0xFF, 0x00,
+ 0x10, 0x10, 0xFF, 0x00, 0xFF,
+ 0x10, 0x10, 0xF0, 0x10, 0xF0,
+ 0x14, 0x14, 0x14, 0xFC, 0x00,
+ 0x14, 0x14, 0xF7, 0x00, 0xFF,
+ 0x00, 0x00, 0xFF, 0x00, 0xFF,
+ 0x14, 0x14, 0xF4, 0x04, 0xFC,
+ 0x14, 0x14, 0x17, 0x10, 0x1F,
+ 0x10, 0x10, 0x1F, 0x10, 0x1F,
+ 0x14, 0x14, 0x14, 0x1F, 0x00,
+ 0x10, 0x10, 0x10, 0xF0, 0x00,
+ 0x00, 0x00, 0x00, 0x1F, 0x10,
+ 0x10, 0x10, 0x10, 0x1F, 0x10,
+ 0x10, 0x10, 0x10, 0xF0, 0x10,
+ 0x00, 0x00, 0x00, 0xFF, 0x10,
+ 0x10, 0x10, 0x10, 0x10, 0x10,
+ 0x10, 0x10, 0x10, 0xFF, 0x10,
+ 0x00, 0x00, 0x00, 0xFF, 0x14,
+ 0x00, 0x00, 0xFF, 0x00, 0xFF,
+ 0x00, 0x00, 0x1F, 0x10, 0x17,
+ 0x00, 0x00, 0xFC, 0x04, 0xF4,
+ 0x14, 0x14, 0x17, 0x10, 0x17,
+ 0x14, 0x14, 0xF4, 0x04, 0xF4,
+ 0x00, 0x00, 0xFF, 0x00, 0xF7,
+ 0x14, 0x14, 0x14, 0x14, 0x14,
+ 0x14, 0x14, 0xF7, 0x00, 0xF7,
+ 0x14, 0x14, 0x14, 0x17, 0x14,
+ 0x10, 0x10, 0x1F, 0x10, 0x1F,
+ 0x14, 0x14, 0x14, 0xF4, 0x14,
+ 0x10, 0x10, 0xF0, 0x10, 0xF0,
+ 0x00, 0x00, 0x1F, 0x10, 0x1F,
+ 0x00, 0x00, 0x00, 0x1F, 0x14,
+ 0x00, 0x00, 0x00, 0xFC, 0x14,
+ 0x00, 0x00, 0xF0, 0x10, 0xF0,
+ 0x10, 0x10, 0xFF, 0x10, 0xFF,
+ 0x14, 0x14, 0x14, 0xFF, 0x14,
+ 0x10, 0x10, 0x10, 0x1F, 0x00,
+ 0x00, 0x00, 0x00, 0xF0, 0x10,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xF0, 0xF0, 0xF0, 0xF0, 0xF0,
+ 0xFF, 0xFF, 0xFF, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xFF, 0xFF,
+ 0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
+ 0x38, 0x44, 0x44, 0x38, 0x44,
+ 0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta
+ 0x7E, 0x02, 0x02, 0x06, 0x06,
+ 0x02, 0x7E, 0x02, 0x7E, 0x02,
+ 0x63, 0x55, 0x49, 0x41, 0x63,
+ 0x38, 0x44, 0x44, 0x3C, 0x04,
+ 0x40, 0x7E, 0x20, 0x1E, 0x20,
+ 0x06, 0x02, 0x7E, 0x02, 0x02,
+ 0x99, 0xA5, 0xE7, 0xA5, 0x99,
+ 0x1C, 0x2A, 0x49, 0x2A, 0x1C,
+ 0x4C, 0x72, 0x01, 0x72, 0x4C,
+ 0x30, 0x4A, 0x4D, 0x4D, 0x30,
+ 0x30, 0x48, 0x78, 0x48, 0x30,
+ 0xBC, 0x62, 0x5A, 0x46, 0x3D,
+ 0x3E, 0x49, 0x49, 0x49, 0x00,
+ 0x7E, 0x01, 0x01, 0x01, 0x7E,
+ 0x2A, 0x2A, 0x2A, 0x2A, 0x2A,
+ 0x44, 0x44, 0x5F, 0x44, 0x44,
+ 0x40, 0x51, 0x4A, 0x44, 0x40,
+ 0x40, 0x44, 0x4A, 0x51, 0x40,
+ 0x00, 0x00, 0xFF, 0x01, 0x03,
+ 0xE0, 0x80, 0xFF, 0x00, 0x00,
+ 0x08, 0x08, 0x6B, 0x6B, 0x08,
+ 0x36, 0x12, 0x36, 0x24, 0x36,
+ 0x06, 0x0F, 0x09, 0x0F, 0x06,
+ 0x00, 0x00, 0x18, 0x18, 0x00,
+ 0x00, 0x00, 0x10, 0x10, 0x00,
+ 0x30, 0x40, 0xFF, 0x01, 0x01,
+ 0x00, 0x1F, 0x01, 0x01, 0x1E,
+ 0x00, 0x19, 0x1D, 0x17, 0x12,
+ 0x00, 0x3C, 0x3C, 0x3C, 0x3C,
+ 0x00, 0x00, 0x00, 0x00, 0x00 // #255 NBSP
+};
+#endif // FONT5X7_H
diff --git a/drivers/avr/pro_micro.h b/drivers/avr/pro_micro.h
new file mode 100644
index 0000000000..f9e7ed75d9
--- /dev/null
+++ b/drivers/avr/pro_micro.h
@@ -0,0 +1,362 @@
+/*
+ pins_arduino.h - Pin definition functions for Arduino
+ Part of Arduino - http://www.arduino.cc/
+
+ Copyright (c) 2007 David A. Mellis
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General
+ Public License along with this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ Boston, MA 02111-1307 USA
+
+ $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
+*/
+
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <avr/pgmspace.h>
+
+// Workaround for wrong definitions in "iom32u4.h".
+// This should be fixed in the AVR toolchain.
+#undef UHCON
+#undef UHINT
+#undef UHIEN
+#undef UHADDR
+#undef UHFNUM
+#undef UHFNUML
+#undef UHFNUMH
+#undef UHFLEN
+#undef UPINRQX
+#undef UPINTX
+#undef UPNUM
+#undef UPRST
+#undef UPCONX
+#undef UPCFG0X
+#undef UPCFG1X
+#undef UPSTAX
+#undef UPCFG2X
+#undef UPIENX
+#undef UPDATX
+#undef TCCR2A
+#undef WGM20
+#undef WGM21
+#undef COM2B0
+#undef COM2B1
+#undef COM2A0
+#undef COM2A1
+#undef TCCR2B
+#undef CS20
+#undef CS21
+#undef CS22
+#undef WGM22
+#undef FOC2B
+#undef FOC2A
+#undef TCNT2
+#undef TCNT2_0
+#undef TCNT2_1
+#undef TCNT2_2
+#undef TCNT2_3
+#undef TCNT2_4
+#undef TCNT2_5
+#undef TCNT2_6
+#undef TCNT2_7
+#undef OCR2A
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+#undef OCR2B
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+
+#define NUM_DIGITAL_PINS 30
+#define NUM_ANALOG_INPUTS 12
+
+#define TX_RX_LED_INIT DDRD |= (1<<5), DDRB |= (1<<0)
+#define TXLED0 PORTD |= (1<<5)
+#define TXLED1 PORTD &= ~(1<<5)
+#define RXLED0 PORTB |= (1<<0)
+#define RXLED1 PORTB &= ~(1<<0)
+
+static const uint8_t SDA = 2;
+static const uint8_t SCL = 3;
+#define LED_BUILTIN 13
+
+// Map SPI port to 'new' pins D14..D17
+static const uint8_t SS = 17;
+static const uint8_t MOSI = 16;
+static const uint8_t MISO = 14;
+static const uint8_t SCK = 15;
+
+// Mapping of analog pins as digital I/O
+// A6-A11 share with digital pins
+static const uint8_t ADC0 = 18;
+static const uint8_t ADC1 = 19;
+static const uint8_t ADC2 = 20;
+static const uint8_t ADC3 = 21;
+static const uint8_t ADC4 = 22;
+static const uint8_t ADC5 = 23;
+static const uint8_t ADC6 = 24; // D4
+static const uint8_t ADC7 = 25; // D6
+static const uint8_t ADC8 = 26; // D8
+static const uint8_t ADC9 = 27; // D9
+static const uint8_t ADC10 = 28; // D10
+static const uint8_t ADC11 = 29; // D12
+
+#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0))
+#define digitalPinToPCICRbit(p) 0
+#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0))
+#define digitalPinToPCMSKbit(p) ( ((p) >= 8 && (p) <= 11) ? (p) - 4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4))))))
+
+// __AVR_ATmega32U4__ has an unusual mapping of pins to channels
+extern const uint8_t PROGMEM analog_pin_to_channel_PGM[];
+#define analogPinToChannel(P) ( pgm_read_byte( analog_pin_to_channel_PGM + (P) ) )
+
+#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
+
+#ifdef ARDUINO_MAIN
+
+// On the Arduino board, digital pins are also used
+// for the analog output (software PWM). Analog input
+// pins are a separate set.
+
+// ATMEL ATMEGA32U4 / ARDUINO LEONARDO
+//
+// D0 PD2 RXD1/INT2
+// D1 PD3 TXD1/INT3
+// D2 PD1 SDA SDA/INT1
+// D3# PD0 PWM8/SCL OC0B/SCL/INT0
+// D4 A6 PD4 ADC8
+// D5# PC6 ??? OC3A/#OC4A
+// D6# A7 PD7 FastPWM #OC4D/ADC10
+// D7 PE6 INT6/AIN0
+//
+// D8 A8 PB4 ADC11/PCINT4
+// D9# A9 PB5 PWM16 OC1A/#OC4B/ADC12/PCINT5
+// D10# A10 PB6 PWM16 OC1B/0c4B/ADC13/PCINT6
+// D11# PB7 PWM8/16 0C0A/OC1C/#RTS/PCINT7
+// D12 A11 PD6 T1/#OC4D/ADC9
+// D13# PC7 PWM10 CLK0/OC4A
+//
+// A0 D18 PF7 ADC7
+// A1 D19 PF6 ADC6
+// A2 D20 PF5 ADC5
+// A3 D21 PF4 ADC4
+// A4 D22 PF1 ADC1
+// A5 D23 PF0 ADC0
+//
+// New pins D14..D17 to map SPI port to digital pins
+//
+// MISO D14 PB3 MISO,PCINT3
+// SCK D15 PB1 SCK,PCINT1
+// MOSI D16 PB2 MOSI,PCINT2
+// SS D17 PB0 RXLED,SS/PCINT0
+//
+// Connected LEDs on board for TX and RX
+// TXLED D24 PD5 XCK1
+// RXLED D17 PB0
+// HWB PE2 HWB
+
+// these arrays map port names (e.g. port B) to the
+// appropriate addresses for various functions (e.g. reading
+// and writing)
+const uint16_t PROGMEM port_to_mode_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &DDRB,
+ (uint16_t) &DDRC,
+ (uint16_t) &DDRD,
+ (uint16_t) &DDRE,
+ (uint16_t) &DDRF,
+};
+
+const uint16_t PROGMEM port_to_output_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PORTB,
+ (uint16_t) &PORTC,
+ (uint16_t) &PORTD,
+ (uint16_t) &PORTE,
+ (uint16_t) &PORTF,
+};
+
+const uint16_t PROGMEM port_to_input_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PINB,
+ (uint16_t) &PINC,
+ (uint16_t) &PIND,
+ (uint16_t) &PINE,
+ (uint16_t) &PINF,
+};
+
+const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
+ PD, // D0 - PD2
+ PD, // D1 - PD3
+ PD, // D2 - PD1
+ PD, // D3 - PD0
+ PD, // D4 - PD4
+ PC, // D5 - PC6
+ PD, // D6 - PD7
+ PE, // D7 - PE6
+
+ PB, // D8 - PB4
+ PB, // D9 - PB5
+ PB, // D10 - PB6
+ PB, // D11 - PB7
+ PD, // D12 - PD6
+ PC, // D13 - PC7
+
+ PB, // D14 - MISO - PB3
+ PB, // D15 - SCK - PB1
+ PB, // D16 - MOSI - PB2
+ PB, // D17 - SS - PB0
+
+ PF, // D18 - A0 - PF7
+ PF, // D19 - A1 - PF6
+ PF, // D20 - A2 - PF5
+ PF, // D21 - A3 - PF4
+ PF, // D22 - A4 - PF1
+ PF, // D23 - A5 - PF0
+
+ PD, // D24 - PD5
+ PD, // D25 / D6 - A7 - PD7
+ PB, // D26 / D8 - A8 - PB4
+ PB, // D27 / D9 - A9 - PB5
+ PB, // D28 / D10 - A10 - PB6
+ PD, // D29 / D12 - A11 - PD6
+};
+
+const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
+ _BV(2), // D0 - PD2
+ _BV(3), // D1 - PD3
+ _BV(1), // D2 - PD1
+ _BV(0), // D3 - PD0
+ _BV(4), // D4 - PD4
+ _BV(6), // D5 - PC6
+ _BV(7), // D6 - PD7
+ _BV(6), // D7 - PE6
+
+ _BV(4), // D8 - PB4
+ _BV(5), // D9 - PB5
+ _BV(6), // D10 - PB6
+ _BV(7), // D11 - PB7
+ _BV(6), // D12 - PD6
+ _BV(7), // D13 - PC7
+
+ _BV(3), // D14 - MISO - PB3
+ _BV(1), // D15 - SCK - PB1
+ _BV(2), // D16 - MOSI - PB2
+ _BV(0), // D17 - SS - PB0
+
+ _BV(7), // D18 - A0 - PF7
+ _BV(6), // D19 - A1 - PF6
+ _BV(5), // D20 - A2 - PF5
+ _BV(4), // D21 - A3 - PF4
+ _BV(1), // D22 - A4 - PF1
+ _BV(0), // D23 - A5 - PF0
+
+ _BV(5), // D24 - PD5
+ _BV(7), // D25 / D6 - A7 - PD7
+ _BV(4), // D26 / D8 - A8 - PB4
+ _BV(5), // D27 / D9 - A9 - PB5
+ _BV(6), // D28 / D10 - A10 - PB6
+ _BV(6), // D29 / D12 - A11 - PD6
+};
+
+const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ TIMER0B, /* 3 */
+ NOT_ON_TIMER,
+ TIMER3A, /* 5 */
+ TIMER4D, /* 6 */
+ NOT_ON_TIMER,
+
+ NOT_ON_TIMER,
+ TIMER1A, /* 9 */
+ TIMER1B, /* 10 */
+ TIMER0A, /* 11 */
+
+ NOT_ON_TIMER,
+ TIMER4A, /* 13 */
+
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+};
+
+const uint8_t PROGMEM analog_pin_to_channel_PGM[] = {
+ 7, // A0 PF7 ADC7
+ 6, // A1 PF6 ADC6
+ 5, // A2 PF5 ADC5
+ 4, // A3 PF4 ADC4
+ 1, // A4 PF1 ADC1
+ 0, // A5 PF0 ADC0
+ 8, // A6 D4 PD4 ADC8
+ 10, // A7 D6 PD7 ADC10
+ 11, // A8 D8 PB4 ADC11
+ 12, // A9 D9 PB5 ADC12
+ 13, // A10 D10 PB6 ADC13
+ 9 // A11 D12 PD6 ADC9
+};
+
+#endif /* ARDUINO_MAIN */
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX
+// pins are NOT connected to anything by default.
+#define SERIAL_PORT_MONITOR Serial
+#define SERIAL_PORT_USBVIRTUAL Serial
+#define SERIAL_PORT_HARDWARE Serial1
+#define SERIAL_PORT_HARDWARE_OPEN Serial1
+
+#endif /* Pins_Arduino_h */
diff --git a/drivers/avr/ssd1306.c b/drivers/avr/ssd1306.c
new file mode 100644
index 0000000000..bb8938bba3
--- /dev/null
+++ b/drivers/avr/ssd1306.c
@@ -0,0 +1,325 @@
+#ifdef SSD1306OLED
+
+#include "ssd1306.h"
+#include "i2c.h"
+#include <string.h>
+#include "print.h"
+#include "glcdfont.c"
+#ifdef ADAFRUIT_BLE_ENABLE
+#include "adafruit_ble.h"
+#endif
+#ifdef PROTOCOL_LUFA
+#include "lufa.h"
+#endif
+#include "sendchar.h"
+#include "timer.h"
+
+// Set this to 1 to help diagnose early startup problems
+// when testing power-on with ble. Turn it off otherwise,
+// as the latency of printing most of the debug info messes
+// with the matrix scan, causing keys to drop.
+#define DEBUG_TO_SCREEN 0
+
+//static uint16_t last_battery_update;
+//static uint32_t vbat;
+//#define BatteryUpdateInterval 10000 /* milliseconds */
+#define ScreenOffInterval 300000 /* milliseconds */
+#if DEBUG_TO_SCREEN
+static uint8_t displaying;
+#endif
+static uint16_t last_flush;
+
+// Write command sequence.
+// Returns true on success.
+static inline bool _send_cmd1(uint8_t cmd) {
+ bool res = false;
+
+ if (i2c_start_write(SSD1306_ADDRESS)) {
+ xprintf("failed to start write to %d\n", SSD1306_ADDRESS);
+ goto done;
+ }
+
+ if (i2c_master_write(0x0 /* command byte follows */)) {
+ print("failed to write control byte\n");
+
+ goto done;
+ }
+
+ if (i2c_master_write(cmd)) {
+ xprintf("failed to write command %d\n", cmd);
+ goto done;
+ }
+ res = true;
+done:
+ i2c_master_stop();
+ return res;
+}
+
+// Write 2-byte command sequence.
+// Returns true on success
+static inline bool _send_cmd2(uint8_t cmd, uint8_t opr) {
+ if (!_send_cmd1(cmd)) {
+ return false;
+ }
+ return _send_cmd1(opr);
+}
+
+// Write 3-byte command sequence.
+// Returns true on success
+static inline bool _send_cmd3(uint8_t cmd, uint8_t opr1, uint8_t opr2) {
+ if (!_send_cmd1(cmd)) {
+ return false;
+ }
+ if (!_send_cmd1(opr1)) {
+ return false;
+ }
+ return _send_cmd1(opr2);
+}
+
+#define send_cmd1(c) if (!_send_cmd1(c)) {goto done;}
+#define send_cmd2(c,o) if (!_send_cmd2(c,o)) {goto done;}
+#define send_cmd3(c,o1,o2) if (!_send_cmd3(c,o1,o2)) {goto done;}
+
+static void clear_display(void) {
+ matrix_clear(&display);
+
+ // Clear all of the display bits (there can be random noise
+ // in the RAM on startup)
+ send_cmd3(PageAddr, 0, (DisplayHeight / 8) - 1);
+ send_cmd3(ColumnAddr, 0, DisplayWidth - 1);
+
+ if (i2c_start_write(SSD1306_ADDRESS)) {
+ goto done;
+ }
+ if (i2c_master_write(0x40)) {
+ // Data mode
+ goto done;
+ }
+ for (uint8_t row = 0; row < MatrixRows; ++row) {
+ for (uint8_t col = 0; col < DisplayWidth; ++col) {
+ i2c_master_write(0);
+ }
+ }
+
+ display.dirty = false;
+
+done:
+ i2c_master_stop();
+}
+
+#if DEBUG_TO_SCREEN
+#undef sendchar
+static int8_t capture_sendchar(uint8_t c) {
+ sendchar(c);
+ iota_gfx_write_char(c);
+
+ if (!displaying) {
+ iota_gfx_flush();
+ }
+ return 0;
+}
+#endif
+
+bool iota_gfx_init(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOff);
+ send_cmd2(SetDisplayClockDiv, 0x80);
+ send_cmd2(SetMultiPlex, DisplayHeight - 1);
+
+ send_cmd2(SetDisplayOffset, 0);
+
+
+ send_cmd1(SetStartLine | 0x0);
+ send_cmd2(SetChargePump, 0x14 /* Enable */);
+ send_cmd2(SetMemoryMode, 0 /* horizontal addressing */);
+
+#ifdef OLED_ROTATE180
+// the following Flip the display orientation 180 degrees
+ send_cmd1(SegRemap);
+ send_cmd1(ComScanInc);
+#endif
+#ifndef OLED_ROTATE180
+// Flips the display orientation 0 degrees
+ send_cmd1(SegRemap | 0x1);
+ send_cmd1(ComScanDec);
+#endif
+
+ send_cmd2(SetComPins, 0x2);
+ send_cmd2(SetContrast, 0x8f);
+ send_cmd2(SetPreCharge, 0xf1);
+ send_cmd2(SetVComDetect, 0x40);
+ send_cmd1(DisplayAllOnResume);
+ send_cmd1(NormalDisplay);
+ send_cmd1(DeActivateScroll);
+ send_cmd1(DisplayOn);
+
+ send_cmd2(SetContrast, 0); // Dim
+
+ clear_display();
+
+ success = true;
+
+ iota_gfx_flush();
+
+#if DEBUG_TO_SCREEN
+ print_set_sendchar(capture_sendchar);
+#endif
+
+done:
+ return success;
+}
+
+bool iota_gfx_off(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOff);
+ success = true;
+
+done:
+ return success;
+}
+
+bool iota_gfx_on(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOn);
+ success = true;
+
+done:
+ return success;
+}
+
+void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c) {
+ *matrix->cursor = c;
+ ++matrix->cursor;
+
+ if (matrix->cursor - &matrix->display[0][0] == sizeof(matrix->display)) {
+ // We went off the end; scroll the display upwards by one line
+ memmove(&matrix->display[0], &matrix->display[1],
+ MatrixCols * (MatrixRows - 1));
+ matrix->cursor = &matrix->display[MatrixRows - 1][0];
+ memset(matrix->cursor, ' ', MatrixCols);
+ }
+}
+
+void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c) {
+ matrix->dirty = true;
+
+ if (c == '\n') {
+ // Clear to end of line from the cursor and then move to the
+ // start of the next line
+ uint8_t cursor_col = (matrix->cursor - &matrix->display[0][0]) % MatrixCols;
+
+ while (cursor_col++ < MatrixCols) {
+ matrix_write_char_inner(matrix, ' ');
+ }
+ return;
+ }
+
+ matrix_write_char_inner(matrix, c);
+}
+
+void iota_gfx_write_char(uint8_t c) {
+ matrix_write_char(&display, c);
+}
+
+void matrix_write(struct CharacterMatrix *matrix, const char *data) {
+ const char *end = data + strlen(data);
+ while (data < end) {
+ matrix_write_char(matrix, *data);
+ ++data;
+ }
+}
+
+void iota_gfx_write(const char *data) {
+ matrix_write(&display, data);
+}
+
+void matrix_write_P(struct CharacterMatrix *matrix, const char *data) {
+ while (true) {
+ uint8_t c = pgm_read_byte(data);
+ if (c == 0) {
+ return;
+ }
+ matrix_write_char(matrix, c);
+ ++data;
+ }
+}
+
+void iota_gfx_write_P(const char *data) {
+ matrix_write_P(&display, data);
+}
+
+void matrix_clear(struct CharacterMatrix *matrix) {
+ memset(matrix->display, ' ', sizeof(matrix->display));
+ matrix->cursor = &matrix->display[0][0];
+ matrix->dirty = true;
+}
+
+void iota_gfx_clear_screen(void) {
+ matrix_clear(&display);
+}
+
+void matrix_render(struct CharacterMatrix *matrix) {
+ last_flush = timer_read();
+ iota_gfx_on();
+#if DEBUG_TO_SCREEN
+ ++displaying;
+#endif
+
+ // Move to the home position
+ send_cmd3(PageAddr, 0, MatrixRows - 1);
+ send_cmd3(ColumnAddr, 0, (MatrixCols * FontWidth) - 1);
+
+ if (i2c_start_write(SSD1306_ADDRESS)) {
+ goto done;
+ }
+ if (i2c_master_write(0x40)) {
+ // Data mode
+ goto done;
+ }
+
+ for (uint8_t row = 0; row < MatrixRows; ++row) {
+ for (uint8_t col = 0; col < MatrixCols; ++col) {
+ const uint8_t *glyph = font + (matrix->display[row][col] * (FontWidth - 1));
+
+ for (uint8_t glyphCol = 0; glyphCol < FontWidth - 1; ++glyphCol) {
+ uint8_t colBits = pgm_read_byte(glyph + glyphCol);
+ i2c_master_write(colBits);
+ }
+
+ // 1 column of space between chars (it's not included in the glyph)
+ i2c_master_write(0);
+ }
+ }
+
+ matrix->dirty = false;
+
+done:
+ i2c_master_stop();
+#if DEBUG_TO_SCREEN
+ --displaying;
+#endif
+}
+
+void iota_gfx_flush(void) {
+ matrix_render(&display);
+}
+
+__attribute__ ((weak))
+void iota_gfx_task_user(void) {
+}
+
+void iota_gfx_task(void) {
+ iota_gfx_task_user();
+
+ if (display.dirty) {
+ iota_gfx_flush();
+ }
+
+ if (timer_elapsed(last_flush) > ScreenOffInterval) {
+ iota_gfx_off();
+ }
+}
+#endif
diff --git a/drivers/avr/ssd1306.h b/drivers/avr/ssd1306.h
new file mode 100644
index 0000000000..df6a75359f
--- /dev/null
+++ b/drivers/avr/ssd1306.h
@@ -0,0 +1,93 @@
+#ifndef SSD1306_H
+#define SSD1306_H
+
+#include <stdbool.h>
+#include <stdio.h>
+#include "pincontrol.h"
+#include "config.h"
+
+enum ssd1306_cmds {
+ DisplayOff = 0xAE,
+ DisplayOn = 0xAF,
+
+ SetContrast = 0x81,
+ DisplayAllOnResume = 0xA4,
+
+ DisplayAllOn = 0xA5,
+ NormalDisplay = 0xA6,
+ InvertDisplay = 0xA7,
+ SetDisplayOffset = 0xD3,
+ SetComPins = 0xda,
+ SetVComDetect = 0xdb,
+ SetDisplayClockDiv = 0xD5,
+ SetPreCharge = 0xd9,
+ SetMultiPlex = 0xa8,
+ SetLowColumn = 0x00,
+ SetHighColumn = 0x10,
+ SetStartLine = 0x40,
+
+ SetMemoryMode = 0x20,
+ ColumnAddr = 0x21,
+ PageAddr = 0x22,
+
+ ComScanInc = 0xc0,
+ ComScanDec = 0xc8,
+ SegRemap = 0xa0,
+ SetChargePump = 0x8d,
+ ExternalVcc = 0x01,
+ SwitchCapVcc = 0x02,
+
+ ActivateScroll = 0x2f,
+ DeActivateScroll = 0x2e,
+ SetVerticalScrollArea = 0xa3,
+ RightHorizontalScroll = 0x26,
+ LeftHorizontalScroll = 0x27,
+ VerticalAndRightHorizontalScroll = 0x29,
+ VerticalAndLeftHorizontalScroll = 0x2a,
+};
+
+// Controls the SSD1306 128x32 OLED display via i2c
+
+#ifndef SSD1306_ADDRESS
+#define SSD1306_ADDRESS 0x3C
+#endif
+
+#define DisplayHeight 32
+#define DisplayWidth 128
+
+#define FontHeight 8
+#define FontWidth 6
+
+#define MatrixRows (DisplayHeight / FontHeight)
+#define MatrixCols (DisplayWidth / FontWidth)
+
+struct CharacterMatrix {
+ uint8_t display[MatrixRows][MatrixCols];
+ uint8_t *cursor;
+ bool dirty;
+};
+
+struct CharacterMatrix display;
+
+bool iota_gfx_init(void);
+void iota_gfx_task(void);
+bool iota_gfx_off(void);
+bool iota_gfx_on(void);
+void iota_gfx_flush(void);
+void iota_gfx_write_char(uint8_t c);
+void iota_gfx_write(const char *data);
+void iota_gfx_write_P(const char *data);
+void iota_gfx_clear_screen(void);
+
+void iota_gfx_task_user(void);
+
+void matrix_clear(struct CharacterMatrix *matrix);
+void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c);
+void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c);
+void matrix_write(struct CharacterMatrix *matrix, const char *data);
+void matrix_write_P(struct CharacterMatrix *matrix, const char *data);
+void matrix_render(struct CharacterMatrix *matrix);
+
+
+
+#endif
diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c
new file mode 100644
index 0000000000..59e032bf71
--- /dev/null
+++ b/drivers/avr/ws2812.c
@@ -0,0 +1,342 @@
+/*
+* light weight WS2812 lib V2.0b
+*
+* Controls WS2811/WS2812/WS2812B RGB-LEDs
+* Author: Tim (cpldcpu@gmail.com)
+*
+* Jan 18th, 2014 v2.0b Initial Version
+* Nov 29th, 2015 v2.3 Added SK6812RGBW support
+*
+* This program 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 2 of the License, or
+* (at your option) any later version.
+*
+* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ws2812.h"
+#include <avr/interrupt.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "debug.h"
+
+#ifdef RGBW_BB_TWI
+
+// Port for the I2C
+#define I2C_DDR DDRD
+#define I2C_PIN PIND
+#define I2C_PORT PORTD
+
+// Pins to be used in the bit banging
+#define I2C_CLK 0
+#define I2C_DAT 1
+
+#define I2C_DATA_HI()\
+I2C_DDR &= ~ (1 << I2C_DAT);\
+I2C_PORT |= (1 << I2C_DAT);
+#define I2C_DATA_LO()\
+I2C_DDR |= (1 << I2C_DAT);\
+I2C_PORT &= ~ (1 << I2C_DAT);
+
+#define I2C_CLOCK_HI()\
+I2C_DDR &= ~ (1 << I2C_CLK);\
+I2C_PORT |= (1 << I2C_CLK);
+#define I2C_CLOCK_LO()\
+I2C_DDR |= (1 << I2C_CLK);\
+I2C_PORT &= ~ (1 << I2C_CLK);
+
+#define I2C_DELAY 1
+
+void I2C_WriteBit(unsigned char c)
+{
+ if (c > 0)
+ {
+ I2C_DATA_HI();
+ }
+ else
+ {
+ I2C_DATA_LO();
+ }
+
+ I2C_CLOCK_HI();
+ _delay_us(I2C_DELAY);
+
+ I2C_CLOCK_LO();
+ _delay_us(I2C_DELAY);
+
+ if (c > 0)
+ {
+ I2C_DATA_LO();
+ }
+
+ _delay_us(I2C_DELAY);
+}
+
+// Inits bitbanging port, must be called before using the functions below
+//
+void I2C_Init(void)
+{
+ I2C_PORT &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
+
+ I2C_CLOCK_HI();
+ I2C_DATA_HI();
+
+ _delay_us(I2C_DELAY);
+}
+
+// Send a START Condition
+//
+void I2C_Start(void)
+{
+ // set both to high at the same time
+ I2C_DDR &= ~ ((1 << I2C_DAT) | (1 << I2C_CLK));
+ _delay_us(I2C_DELAY);
+
+ I2C_DATA_LO();
+ _delay_us(I2C_DELAY);
+
+ I2C_CLOCK_LO();
+ _delay_us(I2C_DELAY);
+}
+
+// Send a STOP Condition
+//
+void I2C_Stop(void)
+{
+ I2C_CLOCK_HI();
+ _delay_us(I2C_DELAY);
+
+ I2C_DATA_HI();
+ _delay_us(I2C_DELAY);
+}
+
+// write a byte to the I2C slave device
+//
+unsigned char I2C_Write(unsigned char c)
+{
+ for (char i = 0; i < 8; i++)
+ {
+ I2C_WriteBit(c & 128);
+
+ c <<= 1;
+ }
+
+
+ I2C_WriteBit(0);
+ _delay_us(I2C_DELAY);
+ _delay_us(I2C_DELAY);
+
+ // _delay_us(I2C_DELAY);
+ //return I2C_ReadBit();
+ return 0;
+}
+
+
+#endif
+
+// Setleds for standard RGB
+void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds)
+{
+ // ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin));
+ ws2812_setleds_pin(ledarray,leds, _BV(RGB_DI_PIN & 0xF));
+}
+
+void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask)
+{
+ // ws2812_DDRREG |= pinmask; // Enable DDR
+ // new universal format (DDR)
+ _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
+
+ ws2812_sendarray_mask((uint8_t*)ledarray,leds+leds+leds,pinmask);
+ _delay_us(50);
+}
+
+// Setleds for SK6812RGBW
+void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds)
+{
+
+ #ifdef RGBW_BB_TWI
+ uint8_t sreg_prev, twcr_prev;
+ sreg_prev=SREG;
+ twcr_prev=TWCR;
+ cli();
+ TWCR &= ~(1<<TWEN);
+ I2C_Init();
+ I2C_Start();
+ I2C_Write(0x84);
+ uint16_t datlen = leds<<2;
+ uint8_t curbyte;
+ uint8_t * data = (uint8_t*)ledarray;
+ while (datlen--) {
+ curbyte=*data++;
+ I2C_Write(curbyte);
+ }
+ I2C_Stop();
+ SREG=sreg_prev;
+ TWCR=twcr_prev;
+ #endif
+
+
+ // ws2812_DDRREG |= _BV(ws2812_pin); // Enable DDR
+ // new universal format (DDR)
+ _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
+
+ ws2812_sendarray_mask((uint8_t*)ledarray,leds<<2,_BV(RGB_DI_PIN & 0xF));
+
+
+ #ifndef RGBW_BB_TWI
+ _delay_us(80);
+ #endif
+}
+
+void ws2812_sendarray(uint8_t *data,uint16_t datlen)
+{
+ ws2812_sendarray_mask(data,datlen,_BV(RGB_DI_PIN & 0xF));
+}
+
+/*
+ This routine writes an array of bytes with RGB values to the Dataout pin
+ using the fast 800kHz clockless WS2811/2812 protocol.
+*/
+
+// Timing in ns
+#define w_zeropulse 350
+#define w_onepulse 900
+#define w_totalperiod 1250
+
+// Fixed cycles used by the inner loop
+#define w_fixedlow 2
+#define w_fixedhigh 4
+#define w_fixedtotal 8
+
+// Insert NOPs to match the timing, if possible
+#define w_zerocycles (((F_CPU/1000)*w_zeropulse )/1000000)
+#define w_onecycles (((F_CPU/1000)*w_onepulse +500000)/1000000)
+#define w_totalcycles (((F_CPU/1000)*w_totalperiod +500000)/1000000)
+
+// w1 - nops between rising edge and falling edge - low
+#define w1 (w_zerocycles-w_fixedlow)
+// w2 nops between fe low and fe high
+#define w2 (w_onecycles-w_fixedhigh-w1)
+// w3 nops to complete loop
+#define w3 (w_totalcycles-w_fixedtotal-w1-w2)
+
+#if w1>0
+ #define w1_nops w1
+#else
+ #define w1_nops 0
+#endif
+
+// The only critical timing parameter is the minimum pulse length of the "0"
+// Warn or throw error if this timing can not be met with current F_CPU settings.
+#define w_lowtime ((w1_nops+w_fixedlow)*1000000)/(F_CPU/1000)
+#if w_lowtime>550
+ #error "Light_ws2812: Sorry, the clock speed is too low. Did you set F_CPU correctly?"
+#elif w_lowtime>450
+ #warning "Light_ws2812: The timing is critical and may only work on WS2812B, not on WS2812(S)."
+ #warning "Please consider a higher clockspeed, if possible"
+#endif
+
+#if w2>0
+#define w2_nops w2
+#else
+#define w2_nops 0
+#endif
+
+#if w3>0
+#define w3_nops w3
+#else
+#define w3_nops 0
+#endif
+
+#define w_nop1 "nop \n\t"
+#define w_nop2 "rjmp .+0 \n\t"
+#define w_nop4 w_nop2 w_nop2
+#define w_nop8 w_nop4 w_nop4
+#define w_nop16 w_nop8 w_nop8
+
+void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
+{
+ uint8_t curbyte,ctr,masklo;
+ uint8_t sreg_prev;
+
+ // masklo =~maskhi&ws2812_PORTREG;
+ // maskhi |= ws2812_PORTREG;
+ masklo =~maskhi&_SFR_IO8((RGB_DI_PIN >> 4) + 2);
+ maskhi |= _SFR_IO8((RGB_DI_PIN >> 4) + 2);
+ sreg_prev=SREG;
+ cli();
+
+ while (datlen--) {
+ curbyte=(*data++);
+
+ asm volatile(
+ " ldi %0,8 \n\t"
+ "loop%=: \n\t"
+ " out %2,%3 \n\t" // '1' [01] '0' [01] - re
+#if (w1_nops&1)
+w_nop1
+#endif
+#if (w1_nops&2)
+w_nop2
+#endif
+#if (w1_nops&4)
+w_nop4
+#endif
+#if (w1_nops&8)
+w_nop8
+#endif
+#if (w1_nops&16)
+w_nop16
+#endif
+ " sbrs %1,7 \n\t" // '1' [03] '0' [02]
+ " out %2,%4 \n\t" // '1' [--] '0' [03] - fe-low
+ " lsl %1 \n\t" // '1' [04] '0' [04]
+#if (w2_nops&1)
+ w_nop1
+#endif
+#if (w2_nops&2)
+ w_nop2
+#endif
+#if (w2_nops&4)
+ w_nop4
+#endif
+#if (w2_nops&8)
+ w_nop8
+#endif
+#if (w2_nops&16)
+ w_nop16
+#endif
+ " out %2,%4 \n\t" // '1' [+1] '0' [+1] - fe-high
+#if (w3_nops&1)
+w_nop1
+#endif
+#if (w3_nops&2)
+w_nop2
+#endif
+#if (w3_nops&4)
+w_nop4
+#endif
+#if (w3_nops&8)
+w_nop8
+#endif
+#if (w3_nops&16)
+w_nop16
+#endif
+
+ " dec %0 \n\t" // '1' [+2] '0' [+2]
+ " brne loop%=\n\t" // '1' [+3] '0' [+4]
+ : "=&d" (ctr)
+ : "r" (curbyte), "I" (_SFR_IO_ADDR(_SFR_IO8((RGB_DI_PIN >> 4) + 2))), "r" (maskhi), "r" (masklo)
+ );
+ }
+
+ SREG=sreg_prev;
+}
diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h
new file mode 100644
index 0000000000..60924a0fb6
--- /dev/null
+++ b/drivers/avr/ws2812.h
@@ -0,0 +1,91 @@
+/*
+ * light weight WS2812 lib include
+ *
+ * Version 2.3 - Nev 29th 2015
+ * Author: Tim (cpldcpu@gmail.com)
+ *
+ * Please do not change this file! All configuration is handled in "ws2812_config.h"
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIGHT_WS2812_H_
+#define LIGHT_WS2812_H_
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+//#include "ws2812_config.h"
+//#include "i2cmaster.h"
+
+#ifdef RGBW
+ #define LED_TYPE struct cRGBW
+#else
+ #define LED_TYPE struct cRGB
+#endif
+
+
+/*
+ * Structure of the LED array
+ *
+ * cRGB: RGB for WS2812S/B/C/D, SK6812, SK6812Mini, SK6812WWA, APA104, APA106
+ * cRGBW: RGBW for SK6812RGBW
+ */
+
+struct cRGB { uint8_t g; uint8_t r; uint8_t b; };
+struct cRGBW { uint8_t g; uint8_t r; uint8_t b; uint8_t w;};
+
+
+
+/* User Interface
+ *
+ * Input:
+ * ledarray: An array of GRB data describing the LED colors
+ * number_of_leds: The number of LEDs to write
+ * pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0)
+ *
+ * The functions will perform the following actions:
+ * - Set the data-out pin as output
+ * - Send out the LED data
+ * - Wait 50�s to reset the LEDs
+ */
+
+void ws2812_setleds (LED_TYPE *ledarray, uint16_t number_of_leds);
+void ws2812_setleds_pin (LED_TYPE *ledarray, uint16_t number_of_leds,uint8_t pinmask);
+void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);
+
+/*
+ * Old interface / Internal functions
+ *
+ * The functions take a byte-array and send to the data output as WS2812 bitstream.
+ * The length is the number of bytes to send - three per LED.
+ */
+
+void ws2812_sendarray (uint8_t *array,uint16_t length);
+void ws2812_sendarray_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
+
+
+/*
+ * Internal defines
+ */
+#ifndef CONCAT
+#define CONCAT(a, b) a ## b
+#endif
+#ifndef CONCAT_EXP
+#define CONCAT_EXP(a, b) CONCAT(a, b)
+#endif
+
+// #define ws2812_PORTREG CONCAT_EXP(PORT,ws2812_port)
+// #define ws2812_DDRREG CONCAT_EXP(DDR,ws2812_port)
+
+#endif /* LIGHT_WS2812_H_ */