Diff: Adafruit_GP9002.cpp

Revision:

0:e760d4cfabe4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GP9002.cpp	Sat May 07 12:53:09 2016 +0000
@@ -0,0 +1,345 @@
+/*#include <avr/pgmspace.h>
+#include <util/delay.h>
+#include <stdlib.h>*/
+
+#include "Adafruit_GFX.h"
+#include "Adafruit_GP9002.h"
+#include "glcdfont.c"
+
+extern const unsigned char BitReverseTable256[] = 
+{
+  0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, 
+  0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 
+  0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, 
+  0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, 
+  0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, 
+  0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
+  0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, 
+  0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
+  0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
+  0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, 
+  0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
+  0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
+  0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, 
+  0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
+  0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, 
+  0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
+};
+
+
+/*
+Adafruit_GP9002::Adafruit_GP9002(int8_t SCLK, int8_t MISO, int8_t MOSI, 
+    int8_t CS, int8_t DC) : Adafruit_GFX(128, 64) {
+  _sclk = SCLK;
+  _miso = MISO;
+  _mosi = MOSI;
+  _cs = CS;
+  _dc = DC;
+  hwSPI = false;
+}
+
+Adafruit_GP9002::Adafruit_GP9002(int8_t CS, int8_t DC) :
+    Adafruit_GFX(128, 64) {
+  _sclk = -1;
+  _miso = -1;
+  _mosi = -1;
+  _cs = CS;
+  _dc = DC;
+  hwSPI = true;
+}
+*/
+Adafruit_GP9002::Adafruit_GP9002(SPI &SPIport, PinName CS, PinName DC): Adafruit_GFX(128, 64), _spi(SPIport), _dc(DC), _cs(CS,1){}  ;
+
+
+void Adafruit_GP9002::begin(void) {
+  // set pin directions
+//  pinMode(_dc, OUTPUT);
+//  pinMode(_cs, OUTPUT);
+
+/*  if (! hwSPI) {
+    pinMode(_mosi, OUTPUT);
+    pinMode(_miso, INPUT);
+    pinMode(_sclk, OUTPUT);
+    
+    clkport     = portOutputRegister(digitalPinToPort(_sclk));
+    clkpinmask  = digitalPinToBitMask(_sclk);
+    mosiport    = portOutputRegister(digitalPinToPort(_mosi));
+    mosipinmask = digitalPinToBitMask(_mosi);
+    misopin = portInputRegister(digitalPinToPort(_miso));
+    misopinmask = digitalPinToBitMask(_miso);
+  } else {
+  */  
+    //SPI.begin();
+   // SPI.setClockDivider(SPI_CLOCK_DIV4);
+   // SPI.setBitOrder(MSBFIRST);
+    //SPI.setDataMode(SPI_MODE0);
+     _spi.format(8,3); // I'm sure this is a mode 3 device
+     _spi.frequency(2000000); //
+ // }
+ /*
+  csport    = portOutputRegister(digitalPinToPort(_cs));
+  cspinmask = digitalPinToBitMask(_cs);
+  dcport    = portOutputRegister(digitalPinToPort(_dc));
+  dcpinmask = digitalPinToBitMask(_dc);
+  */
+
+  command(GP9002_DISPLAY);
+  dataWrite(GP9002_DISPLAY_MONOCHROME);
+  command(GP9002_LOWERADDR1);
+  dataWrite(0x0);
+  command(GP9002_HIGHERADDR1);
+  dataWrite(0x0);
+  command(GP9002_LOWERADDR2);
+  dataWrite(0x0);
+  command(GP9002_HIGHERADDR2);
+  dataWrite(0x4);
+  command(GP9002_OR);
+  command(GP9002_CLEARSCREEN);
+  command(GP9002_DISPLAY1ON);
+
+  // hold the address so we can read and then write
+  command(GP9002_ADDRHELD);
+}
+
+
+
+// updated high speed drawing!
+void Adafruit_GP9002::drawFastVLine(int16_t x, int16_t orig_y, int16_t h, uint16_t color) {
+  if ((x < 0) || (x >= width()) || (orig_y >= height())) return;
+  //if ((orig_y+h) >= height()) 
+  //  h = height() - orig_y -1;
+
+  //drawLine(x, orig_y, x, orig_y+h, color); return;
+
+  while (h) {
+    if ((h >= 8) && ((orig_y) % 8 == 0)) 
+      break;
+    drawPixel(x, orig_y, color);
+    orig_y++;
+    h--;
+  }
+
+  if (h >= 8) {
+      // calculate addr
+      uint16_t addr = 0;
+      addr = x*8;
+  //    uint16_t y = orig_y+h-8;
+       uint16_t y=orig_y;
+  //    y = 63 - y;                 //why?
+      addr += y/8;
+
+  //    Serial.println(addr, HEX);  ///debug line ?
+      command(GP9002_ADDRINCR);
+      command(GP9002_ADDRL);
+      dataWrite(addr & 0xFF);
+      command(GP9002_ADDRH);
+      dataWrite(addr >> 8);
+      command(GP9002_DATAWRITE);
+
+      while (h >= 8) {
+	// draw 8 pixels at once!
+	if (color) 
+	  dataWrite(0xFF);
+	else 
+	  dataWrite(0x00);
+	h -= 8;
+	orig_y += 8;
+      }
+  }
+  while (h+1) {
+    drawPixel(x, orig_y-1, color);
+    orig_y++;
+    h--;
+  }
+
+}
+
+// the most basic function, set a single pixel
+void Adafruit_GP9002::drawPixel(int16_t x, int16_t y, uint16_t color) {
+  if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
+    return;
+
+  uint8_t p;
+  
+  // calculate addr
+  uint16_t addr = 0;
+  addr = x*8;
+ // y = 63 - y;                //why
+  addr += y/8;
+
+  command(GP9002_ADDRHELD);
+  command(GP9002_ADDRL);
+  dataWrite(addr & 0xFF);
+  command(GP9002_ADDRH);
+  dataWrite(addr >> 8);
+  command(GP9002_DATAREAD);
+  dataRead();
+  p = dataRead();
+
+  //Serial.println(p, HEX);
+
+  if (color)
+    p |= (1 << (7-(y % 8)));
+  else
+    p &= ~(1 << (7-(y % 8)));
+  command(GP9002_DATAWRITE);
+  dataWrite(p);
+}
+
+  
+
+void Adafruit_GP9002::invert(bool i) {
+  // This is kinda clumsy but it does work
+  // fill the opposite screen with all on pixels so we can invert!
+  uint16_t addr = 0x400;
+
+  command(GP9002_ADDRINCR);
+  command(GP9002_ADDRL);
+  dataWrite(addr & 0xFF);
+  command(GP9002_ADDRH);
+  dataWrite(addr >> 8);
+  command(GP9002_DATAWRITE);
+
+  if (i) {
+    while (addr < 0x0800) {
+      dataWrite(0xFF);
+      addr++;
+    }
+    command(GP9002_XOR);
+  } else {
+    while (addr < 0x0800) {
+      dataWrite(0x00);
+      addr++;
+    }
+    command(GP9002_OR);
+  }
+  command(GP9002_ADDRHELD);
+
+}
+/*
+void Adafruit_GP9002::slowSPIwrite(uint8_t d) {
+ for (uint8_t i=0; i<8; i++) {
+   digitalWrite(_sclk, LOW);
+   if (d & _BV(i)) {
+     digitalWrite(_mosi, HIGH);
+   } else {
+     digitalWrite(_mosi, LOW);
+   }
+   digitalWrite(_sclk, HIGH);
+ }
+}
+*/
+/*
+inline void Adafruit_GP9002::fastSPIwrite(uint8_t d) {
+  if (hwSPI) {
+    SPDR = d;
+    while(!(SPSR & _BV(SPIF)));
+    return;
+  }
+  for(uint8_t bit = 0x1; bit != 0x00; bit <<= 1) {
+    *clkport &= ~clkpinmask;
+    if(d & bit) *mosiport |=  mosipinmask;
+    else        *mosiport &= ~mosipinmask;
+    *clkport |=  clkpinmask;
+  }
+}
+*/
+/*
+uint8_t Adafruit_GP9002::slowSPIread(void) {
+ uint8_t reply = 0;
+ for (uint8_t i=0; i<8; i++) {
+   digitalWrite(_sclk, LOW);
+
+   digitalWrite(_sclk, HIGH);
+   if (digitalRead(_miso)) 
+     reply |= _BV(i);
+ }
+ return reply;
+}
+
+inline uint8_t Adafruit_GP9002::fastSPIread(void) {
+ uint8_t reply = 0;
+ for (uint8_t i=0; i<8; i++) {
+   *clkport &= ~clkpinmask;
+   
+   *clkport |=  clkpinmask;
+   if ((*misopin) & misopinmask)
+     reply |= _BV(i);
+ }
+ return reply;
+}
+*/
+
+void Adafruit_GP9002::command(uint8_t d) { 
+/*
+  *dcport |= dcpinmask;
+  *csport &= ~cspinmask;
+  fastSPIwrite(d);
+  *csport |= cspinmask;
+  delayMicroseconds(1); // should be 400ns actually
+*/
+_dc=1;
+_cs=0;
+_spi.write(BitReverseTable256[d]);
+_cs=1;
+wait_us(1);
+}
+
+inline void Adafruit_GP9002::dataWrite(uint8_t d) {
+/*
+  *dcport &= ~dcpinmask;
+  *csport &= ~cspinmask;
+
+  fastSPIwrite(d);
+
+  *csport |= cspinmask;
+  delayMicroseconds(1); // should be 600ns actually
+*/
+_dc=0;
+_cs=0;
+_spi.write(BitReverseTable256[d]);
+_cs=1;
+wait_us(1);
+}
+
+inline uint8_t Adafruit_GP9002::dataRead() {
+  uint8_t r;
+/*
+  *dcport &= ~dcpinmask;
+  *csport &= ~cspinmask;
+
+  r = fastSPIread();
+
+  *csport |= cspinmask;
+  delayMicroseconds(1); 
+  */
+
+_dc=0;
+_cs=0;
+r=BitReverseTable256[_spi.write(0)&0xFF];
+_cs=1;
+wait_us(1);
+
+
+ return r;
+}
+
+void Adafruit_GP9002::setBrightness(uint8_t val) {
+  
+}
+
+// clear everything
+void Adafruit_GP9002::clearDisplay(void) {
+  command(GP9002_CLEARSCREEN);
+
+  wait_ms(1);
+}
+
+void Adafruit_GP9002::displayOff(void) {
+  command(GP9002_DISPLAYSOFF); 
+}
+void Adafruit_GP9002::displayOn(void) {
+   command(GP9002_DISPLAY1ON);
+}
+
+