add referenced files

1 files changed, 273 insertions, 0 deletions

diff --git a/obdlogger/SSD1306.cpp b/obdlogger/SSD1306.cpp
new file mode 100644
index 0000000..7f7b8e8
--- /dev/null
+++ b/obdlogger/SSD1306.cpp
@@ -0,0 +1,273 @@
+#include <avr/pgmspace.h>
+#include <util/delay.h>
+#include <stdlib.h>
+#include <Wire.h>
+#include "SSD1306.h"
+
+SSD1306::SSD1306(int8_t SCLK, int8_t DC, int8_t RST, int8_t CS) {
+  cs = CS;
+  rst = RST;
+  dc = DC;
+  sclk = SCLK;
+}
+
+// initializer for I2C - we only indicate the reset pin!
+  SSD1306::SSD1306(int8_t reset) {
+  sclk = dc = cs = -1;
+  rst = reset;
+}
+
+
+void SSD1306::begin(uint8_t vccstate, uint8_t i2caddr) {
+  _i2caddr = i2caddr;
+
+
+  // set pin directions
+    // I2C Init
+    Wire.begin(); // Is this the right place for this?
+
+  // Setup reset pin direction (used by both SPI and I2C)
+  pinMode(rst, OUTPUT);
+  digitalWrite(rst, HIGH);
+  // VDD (3.3V) goes high at start, lets just chill for a ms
+  delay(1);
+  // bring reset low
+  digitalWrite(rst, LOW);
+  // wait 10ms
+  delay(10);
+  // bring out of reset
+  digitalWrite(rst, HIGH);
+  // turn on VCC (9V?)
+   #if defined SSD1306_128_32
+    // Init sequence for 128x32 OLED module
+    ssd1306_command(SSD1306_DISPLAYOFF);                    // 0xAE
+    ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV);            // 0xD5
+    ssd1306_command(0x80);                                  // the suggested ratio 0x80
+    ssd1306_command(SSD1306_SETMULTIPLEX);                  // 0xA8
+    ssd1306_command(0x1F);
+    ssd1306_command(SSD1306_SETDISPLAYOFFSET);              // 0xD3
+    ssd1306_command(0x0);                                   // no offset
+    ssd1306_command(SSD1306_SETSTARTLINE | 0x0);            // line #0
+    ssd1306_command(SSD1306_CHARGEPUMP);                    // 0x8D
+    if (vccstate == SSD1306_EXTERNALVCC)
+      { ssd1306_command(0x10); }
+    else
+      { ssd1306_command(0x14); }
+    ssd1306_command(SSD1306_MEMORYMODE);                    // 0x20
+    ssd1306_command(0x00);                                  // 0x0 act like ks0108
+	ssd1306_command(SSD1306_SEGREMAP | 0x1);
+    ssd1306_command(SSD1306_COMSCANDEC);
+    ssd1306_command(SSD1306_SETCOMPINS);                    // 0xDA
+    ssd1306_command(0x02);
+    ssd1306_command(SSD1306_SETCONTRAST);                   // 0x81
+    ssd1306_command(0x8F);
+    ssd1306_command(SSD1306_SETPRECHARGE);                  // 0xd9
+    if (vccstate == SSD1306_EXTERNALVCC)
+      { ssd1306_command(0x22); }
+    else
+      { ssd1306_command(0xF1); }
+    ssd1306_command(SSD1306_SETVCOMDETECT);                 // 0xDB
+    ssd1306_command(0x40);
+    ssd1306_command(SSD1306_DISPLAYALLON_RESUME);           // 0xA4
+    ssd1306_command(SSD1306_NORMALDISPLAY);                 // 0xA6
+  #endif
+
+  #if defined SSD1306_128_64
+    // Init sequence for 128x64 OLED module
+    ssd1306_command(SSD1306_DISPLAYOFF);                    // 0xAE
+    ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV);            // 0xD5
+    ssd1306_command(0x80);                                  // the suggested ratio 0x80
+    ssd1306_command(SSD1306_SETMULTIPLEX);                  // 0xA8
+    ssd1306_command(0x3F);
+    ssd1306_command(SSD1306_SETDISPLAYOFFSET);              // 0xD3
+    ssd1306_command(0x0);                                   // no offset
+    ssd1306_command(SSD1306_SETSTARTLINE | 0x0);            // line #0
+    ssd1306_command(SSD1306_CHARGEPUMP);                    // 0x8D
+    if (vccstate == SSD1306_EXTERNALVCC)
+      { ssd1306_command(0x10); }
+    else
+      { ssd1306_command(0x14); }
+    ssd1306_command(SSD1306_MEMORYMODE);                    // 0x20
+    ssd1306_command(0x00);                                  // 0x0 act like ks0108
+    ssd1306_command(SSD1306_SEGREMAP | 0x1);
+    ssd1306_command(SSD1306_COMSCANDEC);
+    ssd1306_command(SSD1306_SETCOMPINS);                    // 0xDA
+    ssd1306_command(0x12);
+    ssd1306_command(SSD1306_SETCONTRAST);                   // 0x81
+    if (vccstate == SSD1306_EXTERNALVCC)
+      { ssd1306_command(0x9F); }
+    else
+      { ssd1306_command(0xCF); }
+    ssd1306_command(SSD1306_SETPRECHARGE);                  // 0xd9
+    if (vccstate == SSD1306_EXTERNALVCC)
+      { ssd1306_command(0x22); }
+    else
+      { ssd1306_command(0xF1); }
+    ssd1306_command(SSD1306_SETVCOMDETECT);                 // 0xDB
+    ssd1306_command(0x40);
+    ssd1306_command(SSD1306_DISPLAYALLON_RESUME);           // 0xA4
+    ssd1306_command(SSD1306_NORMALDISPLAY);                 // 0xA6
+  #endif
+
+  ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
+
+  // clear screen
+    delay(5);
+
+    ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0);  // low col = 0
+    ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0);  // hi col = 0
+    ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+    for (byte i = 0; i < SSD1306_LCDHEIGHT / 8; i++) {
+      // send a bunch of data in one xmission
+        ssd1306_command(0xB0 + i);//set page address
+        ssd1306_command(0);//set lower column address
+        ssd1306_command(0x10);//set higher column address
+
+        for(byte j = 0; j < 8; j++){
+            Wire.beginTransmission(_i2caddr);
+            Wire.write(0x40);
+            for (byte k = 0; k < SSD1306_LCDWIDTH / 8; k++) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+        }
+    }
+}
+
+
+void SSD1306::invertDisplay(uint8_t i) {
+  if (i) {
+    ssd1306_command(SSD1306_INVERTDISPLAY);
+  } else {
+    ssd1306_command(SSD1306_NORMALDISPLAY);
+  }
+}
+
+void SSD1306::ssd1306_command(uint8_t c) {
+    // I2C
+    uint8_t control = 0x00;   // Co = 0, D/C = 0
+    Wire.beginTransmission(_i2caddr);
+    Wire.write(control);
+    Wire.write(c);
+    Wire.endTransmission();
+}
+
+// startscrollright
+// Activate a right handed scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrollright(uint8_t start, uint8_t stop){
+	ssd1306_command(SSD1306_RIGHT_HORIZONTAL_SCROLL);
+	ssd1306_command(0X00);
+	ssd1306_command(start);
+	ssd1306_command(0X00);
+	ssd1306_command(stop);
+	ssd1306_command(0X01);
+	ssd1306_command(0XFF);
+	ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrollleft
+// Activate a right handed scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrollleft(uint8_t start, uint8_t stop){
+	ssd1306_command(SSD1306_LEFT_HORIZONTAL_SCROLL);
+	ssd1306_command(0X00);
+	ssd1306_command(start);
+	ssd1306_command(0X00);
+	ssd1306_command(stop);
+	ssd1306_command(0X01);
+	ssd1306_command(0XFF);
+	ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrolldiagright
+// Activate a diagonal scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrolldiagright(uint8_t start, uint8_t stop){
+	ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
+	ssd1306_command(0X00);
+	ssd1306_command(SSD1306_LCDHEIGHT);
+	ssd1306_command(SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL);
+	ssd1306_command(0X00);
+	ssd1306_command(start);
+	ssd1306_command(0X00);
+	ssd1306_command(stop);
+	ssd1306_command(0X01);
+	ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrolldiagleft
+// Activate a diagonal scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrolldiagleft(uint8_t start, uint8_t stop){
+	ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
+	ssd1306_command(0X00);
+	ssd1306_command(SSD1306_LCDHEIGHT);
+	ssd1306_command(SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL);
+	ssd1306_command(0X00);
+	ssd1306_command(start);
+	ssd1306_command(0X00);
+	ssd1306_command(stop);
+	ssd1306_command(0X01);
+	ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+void SSD1306::stopscroll(void){
+	ssd1306_command(SSD1306_DEACTIVATE_SCROLL);
+}
+
+void SSD1306::ssd1306_data(uint8_t c) {
+    // I2C
+    uint8_t control = 0x40;   // Co = 0, D/C = 1
+    Wire.beginTransmission(_i2caddr);
+    Wire.write(control);
+    Wire.write(c);
+    Wire.endTransmission();
+}
+
+void SSD1306::fill(unsigned char dat)
+{
+    unsigned char i,j;
+
+    ssd1306_command(0x00);//set lower column address
+    ssd1306_command(0x10);//set higher column address
+    ssd1306_command(0xB0);//set page address
+
+    uint8_t twbrbackup = TWBR;
+    TWBR = 18; // upgrade to 400KHz!
+    for (byte i=0; i<(SSD1306_LCDHEIGHT/8); i++)
+    {
+        // send a bunch of data in one xmission
+        ssd1306_command(0xB0 + i);//set page address
+        ssd1306_command(0);//set lower column address
+        ssd1306_command(0x10);//set higher column address
+
+        for(byte j = 0; j < 8; j++){
+            Wire.beginTransmission(_i2caddr);
+            Wire.write(0x40);
+            for (byte k = 0; k < 16; k++) {
+                Wire.write(dat);
+            }
+            Wire.endTransmission();
+        }
+    }
+    TWBR = twbrbackup;
+}
+
+void SSD1306::draw8x8(byte* buffer, uint8_t x, uint8_t y)
+{
+    // send a bunch of data in one xmission
+    ssd1306_command(0xB0 + y);//set page address
+    ssd1306_command(x & 0xf);//set lower column address
+    ssd1306_command(0x10 | (x >> 4));//set higher column address
+
+    Wire.beginTransmission(_i2caddr);
+    Wire.write(0x40);
+    Wire.write(buffer, 8);
+    Wire.endTransmission();
+}