Nemanja Zupunski
T3
Diff: Adafruit_SSD1306.h
- Revision:
- 9:ddb97c9850a2
- Parent:
- 8:416b8fe451b3
- Child:
- 10:d5aee2d2f8dd
- Child:
- 11:86909e6db3c8
diff -r 416b8fe451b3 -r ddb97c9850a2 Adafruit_SSD1306.h
--- a/Adafruit_SSD1306.h Sun Oct 19 04:45:11 2014 +0000
+++ b/Adafruit_SSD1306.h Sun Oct 19 20:55:27 2014 +0000
@@ -17,7 +17,7 @@
*********************************************************************/
/*
- * Modified by Neal Horman 7/14/2012 for use in LPC1768
+ * Modified by Neal Horman 7/14/2012 for use in mbed
*/
#ifndef _ADAFRUIT_SSD1306_H_
@@ -26,120 +26,147 @@
#include "mbed.h"
#include "Adafruit_GFX.h"
-/*=========================================================================
- SSD1306 Displays
- -----------------------------------------------------------------------
- The driver is used in multiple displays (128x64, 128x32, etc.).
- Select the appropriate display below to create an appropriately
- sized framebuffer, etc.
-
- SSD1306_128_64 128x64 pixel display
-
- SSD1306_128_32 128x32 pixel display
-
- You also need to set the LCDWIDTH and LCDHEIGHT defines to an
- appropriate size
-
- -----------------------------------------------------------------------*/
-//#define SSD1306_128_64
-#define SSD1306_128_32
-
-#define SSD_USES_SPI
-//#define SSD_USES_I2C
-/*=========================================================================*/
-
-#if defined SSD1306_128_64 && defined SSD1306_128_32
- #error "Only one SSD1306 display can be specified at once in SSD1306.h"
-#endif
-#if !defined SSD1306_128_64 && !defined SSD1306_128_32
- #error "At least one SSD1306 display must be specified in SSD1306.h"
-#endif
+#include <vector>
+#include <algorithm>
-#if defined SSD1306_128_64
- #define SSD1306_LCDWIDTH 128
- #define SSD1306_LCDHEIGHT 64
-#endif
-#if defined SSD1306_128_32
- #define SSD1306_LCDWIDTH 128
- #define SSD1306_LCDHEIGHT 32
-#endif
-
-#if defined SSD_USES_SPI && defined SSD_USES_I2C
- #error "Only one communication mode can be specified at once in SSD1306.h"
-#endif
-#if !defined SSD_USES_SPI && !defined SSD_USES_I2C
- #error "At least one communication mode must be specified in SSD1306.h"
-#endif
-
-//#define WITHOUT_SPLASH
-#define SSD_I2C_ADDRESS 0x78
-
-#define SSD_Command_Mode 0x00
-#define SSD_Data_Mode 0x40
+// A DigitalOut sub-class that provides a constructed default state
+class DigitalOut2 : public DigitalOut
+{
+public:
+ DigitalOut2(PinName pin, bool active = false) : DigitalOut(pin) { write(active); };
+ DigitalOut2& operator= (int value) { write(value); return *this; };
+ DigitalOut2& operator= (DigitalOut2& rhs) { write(rhs.read()); return *this; };
+ operator int() { return read(); };
+};
-#define SSD1306_SETCONTRAST 0x81
-#define SSD1306_DISPLAYALLON_RESUME 0xA4
-#define SSD1306_DISPLAYALLON 0xA5
-#define SSD1306_NORMALDISPLAY 0xA6
-#define SSD1306_INVERTDISPLAY 0xA7
-#define SSD1306_DISPLAYOFF 0xAE
-#define SSD1306_DISPLAYON 0xAF
-#define SSD1306_SETDISPLAYOFFSET 0xD3
-#define SSD1306_SETCOMPINS 0xDA
-#define SSD1306_SETVCOMDETECT 0xDB
-#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
-#define SSD1306_SETPRECHARGE 0xD9
-#define SSD1306_SETMULTIPLEX 0xA8
-#define SSD1306_SETLOWCOLUMN 0x00
-#define SSD1306_SETHIGHCOLUMN 0x10
-#define SSD1306_SETSTARTLINE 0x40
-#define SSD1306_MEMORYMODE 0x20
-#define SSD1306_COMSCANINC 0xC0
-#define SSD1306_COMSCANDEC 0xC8
-#define SSD1306_SEGREMAP 0xA0
-#define SSD1306_CHARGEPUMP 0x8D
#define SSD1306_EXTERNALVCC 0x1
#define SSD1306_SWITCHCAPVCC 0x2
-// an DigitalOut sub-class that provides a constructed default state
-class DigitalOut2 : public DigitalOut
-{
-public:
- DigitalOut2(PinName pin, bool active = false) : DigitalOut(pin) { write(active); };
- DigitalOut2& operator= (int value) { write(value); return *this; };
- DigitalOut2& operator= (DigitalOut2& rhs) { write(rhs.read()); return *this; };
- operator int() { return read(); };
-};
-
class Adafruit_SSD1306 : public Adafruit_GFX
{
- public:
-#ifdef SSD_USES_SPI
- Adafruit_SSD1306(SPI &spi, PinName DC, PinName RST, PinName CS);
-#elif defined SSD_USES_I2C
- Adafruit_SSD1306(I2C &i2c, PinName RST);
-#endif
- void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC);
- void ssd1306_command(uint8_t c);
- void ssd1306_data(uint8_t c);
+public:
+ Adafruit_SSD1306(PinName RST, uint8_t rawHeight = 32, uint8_t rawWidth = 128)
+ : Adafruit_GFX(rawWidth,rawHeight)
+ , rst(RST,false)
+ {};
+
+ void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC);
+ virtual void command(uint8_t c) = 0;
+ virtual void data(uint8_t c) = 0;
- void clearDisplay(void);
- virtual void invertDisplay(bool i);
- void display();
+ void clearDisplay(void);
+ virtual void invertDisplay(bool i);
+ void display();
+ virtual void splash();
+
+ virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
- virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
-
-private:
-
- DigitalOut2 rst;
-#ifdef SSD_USES_SPI
- DigitalOut2 cs,dc;
- SPI &mspi;
-#elif defined SSD_USES_I2C
- I2C &mi2c;
-#endif
- // the memory buffer for the LCD
- uint8_t buffer[SSD1306_LCDHEIGHT * SSD1306_LCDWIDTH / 8];
+protected:
+ virtual void sendDisplayBuffer() = 0;
+ DigitalOut2 rst;
+
+ // the memory buffer for the LCD
+ std::vector<uint8_t> buffer;
+};
+
+class Adafruit_SSD1306_Spi : public Adafruit_SSD1306
+{
+public:
+ Adafruit_SSD1306_Spi(SPI &spi, PinName DC, PinName RST, PinName CS, uint8_t rawHieght = 32, uint8_t rawWidth = 128)
+ : Adafruit_SSD1306(RST, rawHieght, rawWidth)
+ , cs(CS,true)
+ , dc(DC,false)
+ , mspi(spi)
+ {
+ begin();
+ splash();
+ display();
+ };
+
+ virtual void command(uint8_t c)
+ {
+ cs = 1;
+ dc = 0;
+ cs = 0;
+ mspi.write(c);
+ cs = 1;
+ };
+
+ virtual void data(uint8_t c)
+ {
+ cs = 1;
+ dc = 1;
+ cs = 0;
+ mspi.write(c);
+ cs = 1;
+ };
+
+protected:
+ virtual void sendDisplayBuffer()
+ {
+ cs = 1;
+ dc = 1;
+ cs = 0;
+
+ for(uint16_t i=0, q=buffer.size(); i<q; i++)
+ mspi.write(buffer[i]);
+
+ cs = 1;
+ };
+
+ DigitalOut2 cs, dc;
+ SPI &mspi;
+};
+
+class Adafruit_SSD1306_I2c : public Adafruit_SSD1306
+{
+public:
+ #define SSD_I2C_ADDRESS 0x78
+ Adafruit_SSD1306_I2c(I2C &i2c, PinName RST, uint8_t i2cAddress = SSD_I2C_ADDRESS, uint8_t rawHeight = 32, uint8_t rawWidth = 128)
+ : Adafruit_SSD1306(RST, rawHeight, rawWidth)
+ , mi2c(i2c)
+ , mi2cAddress(i2cAddress)
+ {
+ begin();
+ splash();
+ display();
+ };
+
+ virtual void command(uint8_t c)
+ {
+ char buff[2];
+ buff[0] = 0; // Command Mode
+ buff[1] = c;
+ mi2c.write(mi2cAddress, buff, sizeof(buff));
+ }
+
+ virtual void data(uint8_t c)
+ {
+ char buff[2];
+ buff[0] = 0x40; // Data Mode
+ buff[1] = c;
+ mi2c.write(mi2cAddress, buff, sizeof(buff));
+ };
+
+protected:
+ virtual void sendDisplayBuffer()
+ {
+ char buff[17];
+ buff[0] = 0x40; // Data Mode
+
+ // send display buffer in 16 byte chunks
+ for(uint16_t i=0, q=buffer.size(); i<q; i+=16 )
+ { uint8_t x ;
+
+ // TODO - this will segfault if buffer.size() % 16 != 0
+ for(x=1; x<sizeof(buff); x++)
+ buff[x] = buffer[i+x];
+ mi2c.write(mi2cAddress, buff, sizeof(buff));
+ }
+ };
+
+ I2C &mi2c;
+ uint8_t mi2cAddress;
};
#endif
\ No newline at end of file