Stepan Smejkal
.
Diff: Display/TFT.cpp
- Revision:
- 7:bb0383b91104
- Parent:
- 5:b222a9461d6b
- Child:
- 8:26757296c79d
--- a/Display/TFT.cpp Mon Feb 16 01:18:29 2015 +0000
+++ b/Display/TFT.cpp Tue Feb 17 11:02:06 2015 +0000
@@ -23,7 +23,7 @@
#define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
TFT::TFT(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const char *name)
- : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
+ : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y)
{
if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
else if(displayproto==PAR_16) proto = new PAR16(port, CS, reset, DC, WR, RD);
@@ -34,11 +34,13 @@
foreground(White);
background(Black);
set_auto_up(false); //we don't have framebuffer
+ topfixedareasize=0;
+ scrollareasize=0;
// cls();
// locate(0,0);
}
TFT::TFT(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const char *name)
- : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
+ : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y)
{
if(displayproto==SPI_8)
{
@@ -56,6 +58,8 @@
foreground(White);
background(Black);
set_auto_up(false);
+ topfixedareasize=0;
+ scrollareasize=0;
// locate(0,0);
}
void TFT::wr_cmd8(unsigned char cmd)
@@ -83,13 +87,17 @@
{
proto->wr_grambuf(data, lenght);
}
-unsigned int TFT::rd_data32_wdummy()
- {
- return proto->rd_data32_wdummy();
- }
unsigned short TFT::rd_gram()
{
- return (proto->rd_gram());
+ return proto->rd_gram();
+ }
+unsigned int TFT::rd_reg_data32(unsigned char reg)
+ {
+ return proto->rd_reg_data32(reg);
+ }
+unsigned int TFT::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
+ {
+ return proto->rd_extcreg_data32(reg, SPIreadenablecmd);
}
//for TFT, just send data, position counters are in hw
void TFT::window_pushpixel(unsigned short color)
@@ -121,29 +129,34 @@
case 0:// default, portrait view 0°
if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped
else wr_data8(0x48); //for some other ILIxxxx
- set_width(LCDSIZE_X);
- set_height(LCDSIZE_Y);
+ set_width(screensize_X);
+ set_height(screensize_Y);
break;
case 1:// landscape view +90°
if(mipistd) wr_data8(0x28);
else wr_data8(0x29);//for some other ILIxxxx
- set_width(LCDSIZE_Y);
- set_height(LCDSIZE_X);
+ set_width(screensize_Y);
+ set_height(screensize_X);
break;
case 2:// portrait view +180°
if(mipistd) wr_data8(0x09);
else wr_data8(0x99);//for some other ILIxxxx
- set_width(LCDSIZE_X);
- set_height(LCDSIZE_Y);
+ set_width(screensize_X);
+ set_height(screensize_Y);
break;
case 3:// landscape view -90°
if(mipistd) wr_data8(0x2B);
else wr_data8(0xF8);//for some other ILIxxxx
- set_width(LCDSIZE_Y);
- set_height(LCDSIZE_X);
+ set_width(screensize_Y);
+ set_height(screensize_X);
break;
}
}
+void TFT::invert(unsigned char o)
+{
+ if(o == 0) wr_cmd8(0x20);
+ else wr_cmd8(0x21);
+}
// TFT have both column and raw autoincrement inside a window, with internal counters
void TFT::window(int x, int y, int w, int h)
{
@@ -186,10 +199,70 @@
if(mipistd) color = BGR2RGB(color); // in case, convert BGR to RGB (should depend on cmd36 bit3) but maybe is device specific
return color;
}
+void TFT::setscrollarea (int startY, int areasize) // ie 0,480 for whole screen
+{
+ unsigned int bfa;
+ topfixedareasize=startY;
+ scrollareasize=areasize;
+ wr_cmd8(0x33);
+ wr_data16(topfixedareasize); //num lines of top fixed area
+ wr_data16(scrollareasize+scrollbugfix); //num lines of vertical scroll area, +1 for ILI9481 fix
+ if((areasize+startY)>height()) bfa=0;
+ else bfa = height()-(areasize+startY);
+ wr_data16(bfa); //num lines of bottom fixed area
+}
+void TFT::scroll (int lines) // ie 1= scrollup 1, 479= scrolldown 1
+{
+ wr_cmd8(0x37);
+ wr_data16((topfixedareasize+lines)%scrollareasize); //num lines of top fixed area
+}
+void TFT::scrollreset()
+{
+ wr_cmd8(0x13); //normal display mode
+}
void TFT::cls (void)
{
WindowMax();
- // proto->wr_gram(_background,LCDSIZE_X*LCDSIZE_Y);
- // proto->wr_gram(0,LCDSIZE_X*LCDSIZE_Y);
- wr_gram(_background,LCDSIZE_X*LCDSIZE_Y);
+ // proto->wr_gram(_background,screensize_X*screensize_Y);
+ // proto->wr_gram(0,screensize_X*screensize_Y);
+ wr_gram(_background,screensize_X*screensize_Y);
+}
+// try to identify display controller
+void TFT::identify()
+{
+ // MIPI std read ID cmd
+ tftID=rd_reg_data32(0xBF);
+ mipistd=true;
+ // debug("ID MIPI : 0x%8X\r\n",tftID);
+ if(((tftID&0xFF)==((tftID>>8)&0xFF)) && ((tftID&0xFF)==((tftID>>16)&0xFF)))
+ {
+ mipistd=false;
+ // ILI specfic read ID cmd
+ tftID=rd_reg_data32(0xD3)>>8;
+ // debug("ID ILI : 0x%8X\r\n",tftID);
+ }
+ if(((tftID&0xFF)==((tftID>>8)&0xFF)) && ((tftID&0xFF)==((tftID>>16)&0xFF)))
+ {
+ // ILI specfic read ID cmd with ili9341 specific spi read-in enable 0xD9 cmd
+ tftID=rd_extcreg_data32(0xD3, 0xD9);
+ // debug("ID D9 extc ILI : 0x%8X\r\n",tftID);
+ }
+ if(((tftID&0xFF)==((tftID>>8)&0xFF)) && ((tftID&0xFF)==((tftID>>16)&0xFF)))
+ {
+ // ILI specfic read ID cmd with ili9486/88 specific spi read-in enable 0xFB cmd
+ tftID=rd_extcreg_data32(0xD3, 0xFB);
+ // debug("ID D9 extc ILI : 0x%8X\r\n",tftID);
+ }
+ if(((tftID&0xFF)==((tftID>>8)&0xFF)) && ((tftID&0xFF)==((tftID>>16)&0xFF))) tftID=0xDEAD;
+ if ((tftID&0xFFFF)==0x9481) scrollbugfix=1;
+ else scrollbugfix=0;
+ hw_reset(); // in case wrong cmds messed up important settings
+}
+int TFT::sizeX()
+{
+ return screensize_X;
+}
+int TFT::sizeY()
+{
+ return screensize_Y;
}
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