Satyan Raj
test
Fork of
UniGraphic
by 
GraphicsDisplay
Diff: Protocols/PAR8.cpp
- Revision:
- 20:14daa48ffd4c
- Parent:
- 11:b842b8e332cb
--- a/Protocols/PAR8.cpp Mon Mar 02 10:52:26 2015 +0000
+++ b/Protocols/PAR8.cpp Mon Mar 23 14:08:04 2015 +0000
@@ -26,111 +26,63 @@
_WR=1;
_RD=1;
_CS=1;
-#ifdef STMPORTDEBUG
- findport(port); //on return, GPIO get disabled
-#endif
_port.mode(PullNone);
_port.output(); // will re-enable our GPIO port
hw_reset();
}
-#ifdef STMPORTDEBUG
-// create a port obj with STM HAL drivers, just to collect memorymapped regs
-void PAR8::findport(PortName port)
-{
- port_t tempport;
- port_init(&tempport, port, 0xFF, PIN_INPUT);
- outreg = tempport.reg_out;
- inreg = tempport.reg_in;
- // debug("out 0x%.8X in 0x%.8X\r\n", outreg, inreg);
-}
-#endif
void PAR8::wr_cmd8(unsigned char cmd)
-{
-#ifdef USE_CS
- _CS = 0;
-#endif
+{
_DC = 0; // 0=cmd
+ _port.write(cmd); // write 8bit
_WR=0;
- _port.write(cmd); // write 8bit
_WR=1;
-#ifdef USE_CS
- _CS = 1;
-#endif
+ _DC = 1; // 1=data next
}
void PAR8::wr_data8(unsigned char data)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
- _DC = 1; // 1=data
+ _port.write(data); // write 8bit
_WR=0;
- _port.write(data); // write 8bit
_WR=1;
-#ifdef USE_CS
- _CS = 1;
-#endif
}
void PAR8::wr_cmd16(unsigned short cmd)
-{
-#ifdef USE_CS
- _CS = 0;
-#endif
+{
_DC = 0; // 0=cmd
- _WR=0;
_port.write(cmd>>8); // write 8bit
- _WR=1;
_WR=0;
- _port.write(cmd&0xFF); // write 8bit
_WR=1;
-#ifdef USE_CS
- _CS = 1;
-#endif
+ _port.write(cmd&0xFF); // write 8bit
+ _WR=0;
+ _WR=1;
+ _DC = 1; // 1=data next
}
void PAR8::wr_data16(unsigned short data)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
- _DC = 1; // 1=data
+ _port.write(data>>8); // write 8bit
_WR=0;
- _port.write(data>>8); // write 8bit
_WR=1;
+ _port.write(data&0xFF); // write 8bit
_WR=0;
- _port.write(data&0xFF); // write 8bit
_WR=1;
-#ifdef USE_CS
- _CS = 1;
-#endif
}
void PAR8::wr_gram(unsigned short data)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
- _DC = 1; // 1=data
+ _port.write(data>>8); // write 8bit
_WR=0;
- _port.write(data>>8); // write 8bit
_WR=1;
+ _port.write(data&0xFF); // write 8bit
_WR=0;
- _port.write(data&0xFF); // write 8bit
_WR=1;
-#ifdef USE_CS
- _CS = 1;
-#endif
}
void PAR8::wr_gram(unsigned short data, unsigned int count)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
- _DC = 1; // 1=data
if((data>>8)==(data&0xFF))
{
count<<=1;
- _port.write(data); // write 8bit
+ // _port.write(data); // write 8bit
while(count)
{
+ _port.write(data); // rewrite even if same data, otherwise too much fast
_WR=0;
_WR=1;
count--;
@@ -140,62 +92,49 @@
{
while(count)
{
+ _port.write(data>>8); // write 8bit
_WR=0;
- _port.write(data>>8); // write 8bit
_WR=1;
+ _port.write(data&0xFF); // write 8bit
_WR=0;
- _port.write(data&0xFF); // write 8bit
_WR=1;
count--;
}
}
-#ifdef USE_CS
- _CS = 1;
-#endif
}
void PAR8::wr_grambuf(unsigned short* data, unsigned int lenght)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
- _DC = 1; // 1=data
while(lenght)
{
+ _port.write((*data)>>8); // write 8bit
_WR=0;
- _port.write((*data)>>8); // write 8bit
_WR=1;
+ _port.write((*data)&0xFF); // write 8bit
_WR=0;
- _port.write((*data)&0xFF); // write 8bit
_WR=1;
data++;
lenght--;
}
-#ifdef USE_CS
- _CS = 1;
-#endif
}
unsigned short PAR8::rd_gram(bool convert)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
unsigned int r=0;
- _DC = 1; // 1=data
_port.input();
_RD = 0;
+ _RD = 0; // add wait
_port.read(); //dummy read
_RD = 1;
_RD = 0;
-// _RD = 0; // add wait
- r |= (_port.read()&0xFF);
+ _RD = 0; // add wait
+ r |= _port.read();
+ _RD = 1;
r <<= 8;
- _RD = 1;
_RD = 0;
-// _RD = 0; // add wait
- r |= (_port.read()&0xFF);
+ _RD = 0; // add wait
+ r |= _port.read();
_RD = 1;
if(convert)
{
@@ -208,20 +147,13 @@
// during reading, you read the raw 18bit gram
r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit
}
-#ifdef USE_CS
- _CS = 1;
-#endif
_port.output();
return (unsigned short)r;
}
unsigned int PAR8::rd_reg_data32(unsigned char reg)
{
-#ifdef USE_CS
- _CS = 0;
-#endif
wr_cmd8(reg);
unsigned int r=0;
- _DC = 1; // 1=data
_port.input();
_RD = 0;
@@ -252,9 +184,7 @@
_RD = 1;
_CS = 1; // force CS HIG to interupt the cmd in case was not supported
-#ifndef USE_CS //if CS is not used, force fixed LOW again
_CS = 0;
-#endif
_port.output();
return r;
}
@@ -263,6 +193,70 @@
{
return rd_reg_data32(reg);
}
+// ILI932x specific
+void PAR8::dummyread()
+{
+ _port.input();
+ _RD=0;
+ _RD=0; // add wait
+ _port.read(); // dummy read
+ _RD=1;
+ // _port.output();
+}
+// ILI932x specific
+void PAR8::reg_select(unsigned char reg, bool forread)
+{
+ _DC = 0;
+ _port.write(0); // write MSB
+ _WR=0;
+ _WR=1;
+ _port.write(reg); // write LSB
+ _WR=0;
+ _WR=1;
+ _DC = 1; // 1=data next
+}
+// ILI932x specific
+void PAR8::reg_write(unsigned char reg, unsigned short data)
+{
+ _DC = 0;
+ _port.write(0); // write MSB
+ _WR=0;
+ _WR=1;
+ _port.write(reg); // write MSB
+ _WR=0;
+ _WR=1;
+ _DC = 1;
+ _port.write(data>>8);
+ _WR=0;
+ _WR=1;
+ _port.write(data&0xFF);
+ _WR=0;
+ _WR=1;
+}
+// ILI932x specific
+unsigned short PAR8::reg_read(unsigned char reg)
+{
+ unsigned short r=0;
+ _DC = 0;
+ _port.write(0);
+ _WR=0;
+ _WR=1;
+ _port.write(reg);
+ _WR=0;
+ _WR=1;
+ _DC = 1;
+ _port.input();
+ _RD=0;
+ r |= _port.read(); // read 8bit
+ _RD=1;
+ r <<= 8;
+ _RD=0;
+ r |= _port.read(); // read 8bit
+ _RD=1;
+ _port.output();
+
+ return r;
+}
void PAR8::hw_reset()
{
wait_ms(15);
@@ -271,12 +265,9 @@
_WR = 1;
_RD = 1;
_reset = 0; // display reset
- wait_us(50);
+ wait_ms(2);
_reset = 1; // end reset
- wait_ms(15);
-#ifndef USE_CS
- _CS=0; // put CS low now and forever
-#endif
+ wait_ms(100);
}
void PAR8::BusEnable(bool enable)
{