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https://github.com/DCC-EX/CommandStation-EX.git
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97f3450621
Simplify the initialisation in the SSD1306Ascii driver, by removing some of the complex structures that were inherited from the library on which it is based. This should also allow it to compile on the ESP32 platform.
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/* Based on Arduino SSD1306Ascii Library, Copyright (C) 2015 by William Greiman
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* Modifications (C) 2021 Neil McKechnie
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*
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* This file is part of CommandStation-EX
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*
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* This Library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef SSD1306Ascii_h
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#define SSD1306Ascii_h
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#include "Arduino.h"
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#include "FSH.h"
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#include "LCDDisplay.h"
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#include "I2CManager.h"
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#include "DIAG.h"
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// Uncomment to remove lower-case letters to save 108 bytes of flash
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//#define NOLOWERCASE
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//------------------------------------------------------------------------------
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// Constructor
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class SSD1306AsciiWire : public LCDDisplay {
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public:
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// Constructor
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SSD1306AsciiWire(int width, int height);
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// Initialize the display controller.
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void begin(uint8_t i2cAddr);
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// Clear the display and set the cursor to (0, 0).
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void clearNative() override;
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// Set cursor to start of specified text line
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void setRowNative(byte line) override;
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// Write one character to OLED
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size_t writeNative(uint8_t c) override;
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bool isBusy() override { return requestBlock.isBusy(); }
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private:
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// Cursor column.
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uint8_t m_col;
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// Cursor RAM row.
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uint8_t m_row;
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// Display width.
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uint8_t m_displayWidth;
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// Display height.
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uint8_t m_displayHeight;
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// Column offset RAM to SEG.
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uint8_t m_colOffset = 0;
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// Current font.
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const uint8_t* const m_font = System5x7;
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// Only fixed size 5x7 fonts in a 6x8 cell are supported.
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static const uint8_t fontWidth = 5;
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static const uint8_t fontHeight = 7;
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static const uint8_t letterSpacing = 1;
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static const uint8_t m_fontFirstChar = 0x20;
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static const uint8_t m_fontCharCount = 0x61;
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uint8_t m_i2cAddr;
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I2CRB requestBlock;
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uint8_t outputBuffer[fontWidth+letterSpacing+1];
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static const uint8_t blankPixels[];
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static const uint8_t System5x7[];
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static const uint8_t FLASH Adafruit128xXXinit[];
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static const uint8_t FLASH SH1106_132x64init[];
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};
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#endif // SSD1306Ascii_h
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