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Adafruit_SH1106.h
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Adafruit_SH1106.h
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/*********************************************************************
This is a library for our Monochrome OLEDs based on SSD1306 drivers
Pick one up today in the adafruit shop!
------> http://www.adafruit.com/category/63_98
These displays use SPI to communicate, 4 or 5 pins are required to
interface
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.
BSD license, check license.txt for more information
All text above, and the splash screen must be included in any redistribution
*********************************************************************/
/*********************************************************************
I change the adafruit SSD1306 to SH1106
SH1106 driver similar to SSD1306 so, just change the display() method.
However, SH1106 driver don't provide several functions such as scroll commands.
*********************************************************************/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "Adafruit_GFX.h"
extern "C" {
#include "driver/gpio.h"
#include "driver/spi_master.h"
}
typedef volatile uint8_t PortReg;
typedef uint8_t PortMask;
#define BLACK 0
#define WHITE 1
#define INVERSE 2
/*=========================================================================
SH1106 Displays
-----------------------------------------------------------------------
The driver is used in multiple displays (128x64, 128x32, etc.).
Select the appropriate display below to create an appropriately
sized framebuffer, etc.
SH1106_128_64 128x64 pixel display
SH1106_128_32 128x32 pixel display
SH1106_96_16
-----------------------------------------------------------------------*/
#define SH1106_128_64
// #define SH1106_128_32
// #define SH1106_96_16
/*=========================================================================*/
#if defined SH1106_128_64 && defined SH1106_128_32
#error "Only one SH1106 display can be specified at once in SH1106.h"
#endif
#if !defined SH1106_128_64 && !defined SH1106_128_32 && !defined SH1106_96_16
#error "At least one SH1106 display must be specified in SH1106.h"
#endif
#if defined SH1106_128_64
#define SH1106_LCDWIDTH 128
#define SH1106_LCDHEIGHT 64
#endif
#if defined SH1106_128_32
#define SH1106_LCDWIDTH 128
#define SH1106_LCDHEIGHT 32
#endif
#if defined SH1106_96_16
#define SH1106_LCDWIDTH 96
#define SH1106_LCDHEIGHT 16
#endif
#define SH1106_SETCONTRAST 0x81
#define SH1106_DISPLAYALLON_RESUME 0xA4
#define SH1106_DISPLAYALLON 0xA5
#define SH1106_NORMALDISPLAY 0xA6
#define SH1106_INVERTDISPLAY 0xA7
#define SH1106_DISPLAYOFF 0xAE
#define SH1106_DISPLAYON 0xAF
#define SH1106_SETDISPLAYOFFSET 0xD3
#define SH1106_SETCOMPINS 0xDA
#define SH1106_SETVCOMDETECT 0xDB
#define SH1106_SETDISPLAYCLOCKDIV 0xD5
#define SH1106_SETPRECHARGE 0xD9
#define SH1106_SETMULTIPLEX 0xA8
#define SH1106_SETLOWCOLUMN 0x00
#define SH1106_SETHIGHCOLUMN 0x10
#define SH1106_SETSTARTLINE 0x40
#define SH1106_SETPAGEADDRESS 0xB0
#define SH1106_MEMORYMODE 0x20
#define SH1106_COLUMNADDR 0x21
#define SH1106_PAGEADDR 0x22
#define SH1106_COMSCANINC 0xC0
#define SH1106_COMSCANDEC 0xC8
#define SH1106_SEGREMAP 0xA0
#define SH1106_CHARGEPUMP 0x8D
#define SH1106_EXTERNALVCC 0x1
#define SH1106_SWITCHCAPVCC 0x2
// Scrolling #defines
/*
#define SH1106_ACTIVATE_SCROLL 0x2F
#define SH1106_DEACTIVATE_SCROLL 0x2E
#define SH1106_SET_VERTICAL_SCROLL_AREA 0xA3
#define SH1106_RIGHT_HORIZONTAL_SCROLL 0x26
#define SH1106_LEFT_HORIZONTAL_SCROLL 0x27
#define SH1106_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
#define SH1106_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
*/
class Adafruit_SH1106 : public Adafruit_GFX {
public:
Adafruit_SH1106(spi_host_device_t SPI, gpio_num_t DC, gpio_num_t RST);
void begin(uint8_t switchvcc = SH1106_SWITCHCAPVCC, bool reset=true);
inline void SH1106_command(uint8_t c)
{
SPI_snd(&c, 1, 0);
}
inline void SH1106_data(uint8_t c)
{
SPI_snd(&c, 1, 1);
}
void clearDisplay(void);
void invertDisplay(uint8_t i);
void display(void);
void dim(uint8_t contrast);
void drawPixel(int16_t x, int16_t y, uint16_t color);
virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
private:
int8_t _vccstate;
gpio_num_t _mosi, _sclk, _dc, _rst, _cs;
spi_host_device_t _spi;
spi_device_handle_t _spi_device;
void SPI_snd(uint8_t *data, uint8_t len, uint8_t dc);
static void spi_pre_transfer_callback(spi_transaction_t *t);
inline void drawFastVLineInternal(int16_t x, int16_t y, int16_t h, uint16_t color) __attribute__((always_inline));
inline void drawFastHLineInternal(int16_t x, int16_t y, int16_t w, uint16_t color) __attribute__((always_inline));
};