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CommandStation-EX/SSD1306Ascii.h
2021-07-31 15:32:02 +02:00

110 lines
3.1 KiB
C++

/* Based on Arduino SSD1306Ascii Library, Copyright (C) 2015 by William Greiman
* Modifications (C) 2021 Neil McKechnie
*
* This file is part of CommandStation-EX
*
* This Library 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
* (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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef SSD1306Ascii_h
#define SSD1306Ascii_h
#include "Arduino.h"
#include "FSH.h"
#include "LCDDisplay.h"
#include "I2CManager.h"
#include "DIAG.h"
// Uncomment to remove lower-case letters to save 108 bytes of flash
//#define NOLOWERCASE
//------------------------------------------------------------------------------
// Device initialization structure.
struct DevType {
/* Pointer to initialization command bytes. */
const uint8_t* initcmds;
/* Number of initialization bytes */
const uint8_t initSize;
/* Width of the display in pixels */
const uint8_t lcdWidth;
/** Height of the display in pixels. */
const uint8_t lcdHeight;
/* Column offset RAM to display. Used to pick start column of SH1106. */
const uint8_t colOffset;
};
// Constructor
class SSD1306AsciiWire : public LCDDisplay {
public:
// Constructor
SSD1306AsciiWire(int width, int height);
// Initialize the display controller.
void begin(const DevType* dev, uint8_t i2cAddr);
// Clear the display and set the cursor to (0, 0).
void clearNative();
// Set cursor to start of specified text line
void setRowNative(byte line);
// Initialize the display controller.
void init(const DevType* dev);
// Write one character to OLED
size_t writeNative(uint8_t c);
// Display characteristics / initialisation
static const DevType FLASH Adafruit128x32;
static const DevType FLASH Adafruit128x64;
static const DevType FLASH SH1106_132x64;
private:
// Cursor column.
uint8_t m_col;
// Cursor RAM row.
uint8_t m_row;
// Display width.
uint8_t m_displayWidth;
// Display height.
uint8_t m_displayHeight;
// Column offset RAM to SEG.
uint8_t m_colOffset = 0;
// Current font.
const uint8_t* const m_font = System5x7;
// Only fixed size 5x7 fonts in a 6x8 cell are supported.
static const uint8_t fontWidth = 5;
static const uint8_t fontHeight = 7;
static const uint8_t letterSpacing = 1;
static const uint8_t m_fontFirstChar = 0x20;
static const uint8_t m_fontCharCount = 0x61;
uint8_t m_i2cAddr;
uint8_t outputBuffer[fontWidth+letterSpacing+1];
static const uint8_t blankPixels[];
static const uint8_t System5x7[];
static const uint8_t FLASH Adafruit128xXXinit[];
static const uint8_t FLASH SH1106_132x64init[];
};
#endif // SSD1306Ascii_h