First init.

libraries/Adafruit_GFX_Library/Adafruit_GrayOLED.h

@@ -0,0 +1,101 @@
+/*!
+ * @file Adafruit_GrayOLED.h
+ *
+ * This is part of for Adafruit's GFX library, supplying generic support
+ * for grayscale OLED displays: http://www.adafruit.com/category/63_98
+ *
+ * These displays use I2C or SPI to communicate. I2C requires 2 pins
+ * (SCL+SDA) and optionally a RESET pin. SPI requires 4 pins (MOSI, SCK,
+ * select, data/command) and optionally a reset pin. Hardware SPI or
+ * 'bitbang' software SPI are both supported.
+ *
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Written by Limor Fried/Ladyada for Adafruit Industries, with
+ * contributions from the open source community.
+ *
+ * BSD license, all text above, and the splash screen header file,
+ * must be included in any redistribution.
+ *
+ */
+
+#ifndef _Adafruit_GRAYOLED_H_
+#define _Adafruit_GRAYOLED_H_
+
+// Not for ATtiny, at all
+#if !defined(__AVR_ATtiny85__) && !defined(__AVR_ATtiny84__)
+
+#include <Adafruit_GFX.h>
+#include <Adafruit_I2CDevice.h>
+#include <Adafruit_SPIDevice.h>
+#include <SPI.h>
+#include <Wire.h>
+
+#define GRAYOLED_SETCONTRAST 0x81   ///< Generic contrast for almost all OLEDs
+#define GRAYOLED_NORMALDISPLAY 0xA6 ///< Generic non-invert for almost all OLEDs
+#define GRAYOLED_INVERTDISPLAY 0xA7 ///< Generic invert for almost all OLEDs
+
+#define MONOOLED_BLACK 0   ///< Default black 'color' for monochrome OLEDS
+#define MONOOLED_WHITE 1   ///< Default white 'color' for monochrome OLEDS
+#define MONOOLED_INVERSE 2 ///< Default inversion command for monochrome OLEDS
+
+/*!
+    @brief  Class that stores state and functions for interacting with
+            generic grayscale OLED displays.
+*/
+class Adafruit_GrayOLED : public Adafruit_GFX {
+public:
+  Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, TwoWire *twi = &Wire,
+                    int8_t rst_pin = -1, uint32_t preclk = 400000,
+                    uint32_t postclk = 100000);
+  Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, int8_t mosi_pin,
+                    int8_t sclk_pin, int8_t dc_pin, int8_t rst_pin,
+                    int8_t cs_pin);
+  Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, SPIClass *spi,
+                    int8_t dc_pin, int8_t rst_pin, int8_t cs_pin,
+                    uint32_t bitrate = 8000000UL);
+
+  ~Adafruit_GrayOLED(void);
+
+  /**
+   @brief The function that sub-classes define that writes out the buffer to
+   the display over I2C or SPI
+   **/
+  virtual void display(void) = 0;
+  void clearDisplay(void);
+  void invertDisplay(bool i);
+  void setContrast(uint8_t contrastlevel);
+  void drawPixel(int16_t x, int16_t y, uint16_t color);
+  bool getPixel(int16_t x, int16_t y);
+  uint8_t *getBuffer(void);
+
+  void oled_command(uint8_t c);
+  bool oled_commandList(const uint8_t *c, uint8_t n);
+
+protected:
+  bool _init(uint8_t i2caddr = 0x3C, bool reset = true);
+
+  Adafruit_SPIDevice *spi_dev = NULL; ///< The SPI interface BusIO device
+  Adafruit_I2CDevice *i2c_dev = NULL; ///< The I2C interface BusIO device
+  int32_t i2c_preclk = 400000,        ///< Configurable 'high speed' I2C rate
+      i2c_postclk = 100000;           ///< Configurable 'low speed' I2C rate
+  uint8_t *buffer = NULL; ///< Internal 1:1 framebuffer of display mem
+
+  int16_t window_x1, ///< Dirty tracking window minimum x
+      window_y1,     ///< Dirty tracking window minimum y
+      window_x2,     ///< Dirty tracking window maximum x
+      window_y2;     ///< Dirty tracking window maximum y
+
+  int dcPin,  ///< The Arduino pin connected to D/C (for SPI)
+      csPin,  ///< The Arduino pin connected to CS (for SPI)
+      rstPin; ///< The Arduino pin connected to reset (-1 if unused)
+
+  uint8_t _bpp = 1; ///< Bits per pixel color for this display
+private:
+  TwoWire *_theWire = NULL; ///< The underlying hardware I2C
+};
+
+#endif // end __AVR_ATtiny85__ __AVR_ATtiny84__
+#endif // _Adafruit_GrayOLED_H_