void writeInst(lcd screen, XGpio Gpio){
XGpio_Initialize(&Gpio, XPAR_GPIO_0_DEVICE_ID);
lcd pinDir;
u32 gpioOutput;
u32 gpioPinDir; // 0x0 is output, 0xFFF is input...
pinDir.rs = 0;
pinDir.rw = 0;
pinDir.en = 0;
pinDir.db = 0xFF;
gpioPinDir = outBits(pinDir);
// screen arrives with the bits to be written already set.
XGpio_SetDataDirection(&Gpio, 1, gpioPinDir);
// Start of timing
screen.rs = 1;
screen.rw = 0;
screen.en = 0;
gpioOutput = outBits(screen);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(1000);
screen.en = 1;
gpioOutput = outBits(screen);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(3000);
pinDir.db = 0x00;
gpioPinDir = outBits(pinDir);
XGpio_SetDataDirection(&Gpio, 1, gpioPinDir);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(3000);
screen.en = 0;
gpioOutput = outBits(screen);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
pinDir.db = 0xFF;
gpioPinDir = outBits(pinDir);
XGpio_SetDataDirection(&Gpio, 1, gpioPinDir);
screen.rs = 1;
screen.rw = 1;
gpioOutput = outBits(screen);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
}
u32 read( XGpio Gpio ){
XGpio_Initialize(&Gpio, XPAR_GPIO_0_DEVICE_ID);
lcd commands;
lcd pinDir;
u32 gpioPinDir; // 0x0 is output, 0xFFF is input...
u32 gpioOutput;
commands.rs = 0;
commands.rw = 0;
commands.en = 0;
commands.db = 0x00;
pinDir.rs = 0;
pinDir.rw = 0;
pinDir.en = 0;
pinDir.db = 0xFF;
gpioPinDir = outBits(pinDir);
XGpio_SetDataDirection(&Gpio, 1, gpioPinDir);
gpioOutput = outBits(commands);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
// commands.rs = 1;
commands.rw = 1;
gpioOutput = outBits(commands);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(3000);
commands.en = 1;
gpioOutput = outBits(commands);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(3000);
// READ
u32 readVal = 0;
readVal = XGpio_ReadReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET);
delay(1000);
commands.en = 0;
gpioOutput = outBits(commands);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
delay(1000);
commands.rs = 0;
commands.rw = 0;
gpioOutput = outBits(commands);
XGpio_WriteReg(Gpio.BaseAddress, XGPIO_DATA_OFFSET,gpioOutput);
return readVal;
}
size_t DictionaryEncoding::Dictionary::compress(void* dst, const ConstChunk& chunk, size_t chunkSize)
{
uint8_t *readPtr = (uint8_t *)chunk.getData();
TypeId type = chunk.getAttributeDesc().getType();
size_t elementSize = TypeLibrary::getType(type).byteSize();
size_t nElems;
if(elementSize == 0 || elementSize > 8 || chunk.isRLE() || !chunk.getArrayDesc().isImmutable() || chunk.isSparse() || chunk.getAttributeDesc().isNullable())
{
nElems = chunkSize;
elementSize = 1;
}
else
{
nElems = chunkSize / elementSize;
}
size_t i;
uint64_t value = 0;
uint8_t code = 0;
ByteOutputItr out((uint8_t *) dst, chunkSize - 1);
BitOutputItr outBits(&out);
uint32_t uniques = (uint32_t) createDictionary(readPtr, elementSize, nElems, out);
size_t codeLength;
uniques <= 2 ? codeLength = 1 : codeLength = ceil(log2(uniques-1)) + 1; // 0-indexed, so values span from 0...uniques-1, log is 0-based, so bring it back to 1...n bits
// project size and terminate if it will be too large
size_t codesSize = (nElems * codeLength + 7) >> 3;
size_t totalCompressed = 1 + uniques * elementSize + codesSize;
if(totalCompressed*2 >= chunkSize) // if we can't get at least 2:1 it is not worth doing
{
return chunkSize;
}
if(!nElems || !uniques)
{
return chunkSize;
}
for(i = 0; i < nElems; ++i)
{
memcpy((uint8_t *) &value, readPtr, elementSize);
code = _encodeDictionary[value];
outBits.put(code, codeLength);
readPtr += elementSize;
}
outBits.flush();
size_t compressedSize = out.close();
return compressedSize;
}
int main()
{
static XIntc intc;
static XTmrCtr axi_timer_0_Timer;
XGpio Gpio; /* The Instance of the GPIO Driver */
Xil_ICacheEnable();
Xil_DCacheEnable();
print("---Entering main---\n\r");
xil_printf( "Memory size occupied by status2 : %d\n", sizeof(lcd) );
lcd myLCD;
myLCD.rs = 0;
myLCD.rw = 0;
myLCD.en = 0;
myLCD.db = 0x30;
u32 gpioOutput = outBits(myLCD);
xil_printf( "gpioOut 0x%04x\n", gpioOutput );
write(myLCD, Gpio);
u32 readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
write(myLCD, Gpio);
delay(1000000);
write(myLCD, Gpio);
delay(1000000);
write(myLCD, Gpio);
delay(1000000);
myLCD.rs = 0;
myLCD.rw = 0;
myLCD.en = 0;
myLCD.db = 0x3C;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
delay(1000000);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x08;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
delay(1000000);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x01;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
delay(1000000);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x06;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x0F;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
// Blinking Cursor
myLCD.db = 0xCF;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x30;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x8B;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x48;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x8C;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x45;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x8D;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x4C;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x8E;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x4C;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x8F;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x4F;
gpioOutput = outBits(myLCD);
writeInst(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
myLCD.db = 0x80;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
// Blinky
myLCD.db = 0xCF;
gpioOutput = outBits(myLCD);
write(myLCD, Gpio);
readOut = read(Gpio);
xil_printf( "readOut 0x%04x\n", readOut );
print("---Exiting main---\n\r");
Xil_DCacheDisable();
Xil_ICacheDisable();
return 0;
}
