Update MultiLCD library

1 files changed, 401 insertions, 0 deletions

diff --git a/libraries/MultiLCD/SH1106.cpp b/libraries/MultiLCD/SH1106.cpp
new file mode 100644
index 0000000..0496342
--- /dev/null
+++ b/libraries/MultiLCD/SH1106.cpp
@@ -0,0 +1,401 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include "MultiLCD.h"
+
+#define I2C_ADDR 0x78 >> 1
+
+void LCD_SH1106::WriteCommand(unsigned char ins)
+{
+  Wire.beginTransmission(I2C_ADDR);//0x78 >> 1
+  Wire.write(0x00);//0x00
+  Wire.write(ins);
+  Wire.endTransmission();
+}
+
+void LCD_SH1106::WriteData(unsigned char dat)
+{
+  Wire.beginTransmission(I2C_ADDR);//0x78 >> 1
+  Wire.write(0x40);//0x40
+  Wire.write(dat);
+  Wire.endTransmission();
+}
+
+void LCD_SH1106::setCursor(unsigned char x, unsigned char y)
+{
+    m_col = x + 2;
+    m_row = y;
+    WriteCommand(0xb0 + m_row);
+    WriteCommand(m_col & 0xf);//set lower column address
+    WriteCommand(0x10 | (m_col >> 4));//set higher column address
+}
+
+void LCD_SH1106::clear(byte x, byte y, byte width, byte height)
+{
+    WriteCommand(SSD1306_SETLOWCOLUMN | 0x0);  // low col = 0
+    WriteCommand(SSD1306_SETHIGHCOLUMN | 0x0);  // hi col = 0
+    WriteCommand(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+    // save I2C bitrate
+    uint8_t twbrbackup = TWBR;
+    TWBR = 18; // upgrade to 400KHz!
+
+    height >>= 3;
+    width >>= 3;
+    y >>= 3;
+    for (byte i = 0; i < height; i++) {
+      // send a bunch of data in one xmission
+        WriteCommand(0xB0 + i + y);//set page address
+        WriteCommand((x + 2) & 0xf);//set lower column address
+        WriteCommand(0x10 | (x >> 4));//set higher column address
+
+        for(byte j = 0; j < 8; j++){
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte k = 0; k < width; k++) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+        }
+    }
+
+    setCursor(0, 0);
+    TWBR = twbrbackup;
+}
+
+size_t LCD_SH1106::write(uint8_t c)
+{
+    if (c == '\n') {
+        setCursor(0, m_row + ((m_font == FONT_SIZE_SMALL) ? 1 : 2));
+        return 1;
+    } else if (c == '\r') {
+        m_col = 0;
+        return 1;
+    }
+
+    uint8_t twbrbackup = TWBR;
+    TWBR = 18; // upgrade to 400KHz!
+#ifndef MEMORY_SAVING
+    if (m_font == FONT_SIZE_SMALL) {
+#endif
+        Wire.beginTransmission(I2C_ADDR);
+        Wire.write(0x40);
+        if (c > 0x20 && c < 0x7f) {
+            c -= 0x21;
+            for (byte i = 0; i < 5; i++) {
+                byte d = pgm_read_byte(&font5x8[c][i]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.write(0);
+        } else {
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 11 : 6; i > 0; i--) {
+                Wire.write(0);
+            }
+        }
+        Wire.endTransmission();
+        m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 11 : 6;
+        if (m_col >= 128) {
+            m_col = 0;
+            m_row ++;
+        }
+#ifndef MEMORY_SAVING
+    } else {
+        if (c > 0x20 && c < 0x7f) {
+            c -= 0x21;
+
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = 0; i <= 14; i += 2) {
+                byte d = pgm_read_byte(&font8x16_terminal[c][i]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = 1; i <= 15; i += 2) {
+                byte d = pgm_read_byte(&font8x16_terminal[c][i]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+        } else {
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 16 : 8; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 16 : 8; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+        }
+        m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 17 : 9;
+        if (m_col >= 128) {
+            m_col = 0;
+            m_row += 2;
+        }
+    }
+#endif
+    TWBR = twbrbackup;
+    return 1;
+}
+
+void LCD_SH1106::writeDigit(byte n)
+{
+    uint8_t twbrbackup = TWBR;
+    TWBR = 18; // upgrade to 400KHz!
+
+    if (m_font == FONT_SIZE_SMALL) {
+        Wire.beginTransmission(I2C_ADDR);
+        Wire.write(0x40);
+        if (n <= 9) {
+            n += '0' - 0x21;
+            for (byte i = 0; i < 5; i++) {
+                Wire.write(pgm_read_byte(&font5x8[n][i]));
+            }
+            Wire.write(0);
+        } else {
+            for (byte i = 0; i < 6; i++) {
+                Wire.write(0);
+            }
+        }
+        Wire.endTransmission();
+        m_col += 6;
+    } else if (m_font == FONT_SIZE_MEDIUM) {
+        write(n <= 9 ? ('0' + n) : ' ');
+#ifndef MEMORY_SAVING
+    } else if (m_font == FONT_SIZE_LARGE) {
+        if (n <= 9) {
+            byte i;
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (i = 0; i < 16; i ++) {
+                byte d = pgm_read_byte(&digits16x16[n][i]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (; i < 32; i ++) {
+                byte d = pgm_read_byte(&digits16x16[n][i]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+        } else {
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+        }
+        m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 30 : 16;
+#endif
+    } else {
+        if (n <= 9) {
+            byte i;
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (i = 0; i < 16; i ++) {
+                byte d = pgm_read_byte(&digits16x24[n][i * 3]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (i = 0; i < 16; i ++) {
+                byte d = pgm_read_byte(&digits16x24[n][i * 3 + 1]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 2);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (i = 0; i < 16; i ++) {
+                byte d = pgm_read_byte(&digits16x24[n][i * 3 + 2]);
+                Wire.write(d);
+                if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+            }
+            Wire.endTransmission();
+        } else {
+            WriteCommand(0xB0 + m_row);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 1);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+
+            WriteCommand(0xB0 + m_row + 2);//set page address
+            WriteCommand(m_col & 0xf);//set lower column address
+            WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+                Wire.write(0);
+            }
+            Wire.endTransmission();
+        }
+        m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 30 : 16;
+    }
+    TWBR = twbrbackup;
+}
+
+void LCD_SH1106::draw(const PROGMEM byte* buffer, byte width, byte height)
+{
+    uint8_t twbrbackup = TWBR;
+    TWBR = 18; // upgrade to 400KHz!
+
+    WriteCommand(SSD1306_SETLOWCOLUMN | 0x0);  // low col = 0
+    WriteCommand(SSD1306_SETHIGHCOLUMN | 0x0);  // hi col = 0
+    WriteCommand(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+    const PROGMEM byte *p = buffer;
+    height >>= 3;
+    width >>= 3;
+    for (byte i = 0; i < height; i++) {
+      // send a bunch of data in one xmission
+        WriteCommand(0xB0 + i + m_row);//set page address
+        WriteCommand(m_col & 0xf);//set lower column address
+        WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+        for(byte j = 0; j < 8; j++){
+            Wire.beginTransmission(I2C_ADDR);
+            Wire.write(0x40);
+            for (byte k = 0; k < width; k++, p++) {
+                Wire.write(pgm_read_byte(p));
+            }
+            Wire.endTransmission();
+        }
+    }
+    TWBR = twbrbackup;
+    m_col += width;
+}
+
+void LCD_SH1106::begin()
+{
+  Wire.begin();
+
+  WriteCommand(0xAE);    /*display off*/
+
+  WriteCommand(0x02);    /*set lower column address*/
+  WriteCommand(0x10);    /*set higher column address*/
+
+  WriteCommand(0x40);    /*set display start line*/
+
+  WriteCommand(0xB0);    /*set page address*/
+
+  WriteCommand(0x81);    /*contract control*/
+  WriteCommand(0x80);    /*128*/
+
+  WriteCommand(0xA1);    /*set segment remap*/
+
+  WriteCommand(0xA6);    /*normal / reverse*/
+
+  WriteCommand(0xA8);    /*multiplex ratio*/
+  WriteCommand(0x3F);    /*duty = 1/32*/
+
+  WriteCommand(0xad);    /*set charge pump enable*/
+  WriteCommand(0x8b);     /*external VCC   */
+
+  WriteCommand(0x30);    /*0X30---0X33  set VPP   9V liangdu!!!!*/
+
+  WriteCommand(0xC8);    /*Com scan direction*/
+
+  WriteCommand(0xD3);    /*set display offset*/
+  WriteCommand(0x00);   /*   0x20  */
+
+  WriteCommand(0xD5);    /*set osc division*/
+  WriteCommand(0x80);
+
+  WriteCommand(0xD9);    /*set pre-charge period*/
+  WriteCommand(0x1f);    /*0x22*/
+
+  WriteCommand(0xDA);    /*set COM pins*/
+  WriteCommand(0x12);
+
+  WriteCommand(0xdb);    /*set vcomh*/
+  WriteCommand(0x40);
+
+  WriteCommand(0xAF);    /*display ON*/
+
+  clear();
+}