Duncan Wood / UniGraphic

Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.

Dependents:   Brew

Display/TFT.cpp@2:713844a55c4e, 2015-02-13 (annotated)

Committer:
Geremia
Date:
Fri Feb 13 23:17:55 2015 +0000
Revision:
2:713844a55c4e
Child:
3:48f3282c2be8
Initial TFT implementation, needs to add read cmds

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 2:713844a55c4e 1 #include "TFT.h"
Geremia 2:713844a55c4e 2
Geremia 2:713844a55c4e 3 //#include "mbed_debug.h"
Geremia 2:713844a55c4e 4
Geremia 2:713844a55c4e 5 #define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
Geremia 2:713844a55c4e 6
Geremia 2:713844a55c4e 7 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)
Geremia 2:713844a55c4e 8 : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
Geremia 2:713844a55c4e 9 {
Geremia 2:713844a55c4e 10 if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
Geremia 2:713844a55c4e 11 useNOP=false;
Geremia 2:713844a55c4e 12 set_orientation(0);
Geremia 2:713844a55c4e 13 foreground(White);
Geremia 2:713844a55c4e 14 background(Black);
Geremia 2:713844a55c4e 15 set_auto_up(false); //we don't have framebuffer
Geremia 2:713844a55c4e 16 mipistd=false;
Geremia 2:713844a55c4e 17 // cls();
Geremia 2:713844a55c4e 18 // locate(0,0);
Geremia 2:713844a55c4e 19 }
Geremia 2:713844a55c4e 20 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)
Geremia 2:713844a55c4e 21 : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
Geremia 2:713844a55c4e 22 {
Geremia 2:713844a55c4e 23 if(displayproto==SPI_8)
Geremia 2:713844a55c4e 24 {
Geremia 2:713844a55c4e 25 proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 2:713844a55c4e 26 useNOP=false;
Geremia 2:713844a55c4e 27 }
Geremia 2:713844a55c4e 28 else if(displayproto==SPI_16)
Geremia 2:713844a55c4e 29 {
Geremia 2:713844a55c4e 30 proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 2:713844a55c4e 31 useNOP=true;
Geremia 2:713844a55c4e 32 }
Geremia 2:713844a55c4e 33 // cls();
Geremia 2:713844a55c4e 34 set_orientation(0);
Geremia 2:713844a55c4e 35 foreground(White);
Geremia 2:713844a55c4e 36 background(Black);
Geremia 2:713844a55c4e 37 set_auto_up(false);
Geremia 2:713844a55c4e 38 mipistd=false;
Geremia 2:713844a55c4e 39 // locate(0,0);
Geremia 2:713844a55c4e 40 }
Geremia 2:713844a55c4e 41 void TFT::wr_cmd8(unsigned char cmd)
Geremia 2:713844a55c4e 42 {
Geremia 2:713844a55c4e 43 if(useNOP) proto->wr_cmd16(cmd); // 0x0000|cmd, 00 is NOP cmd for TFT
Geremia 2:713844a55c4e 44 else proto->wr_cmd8(cmd);
Geremia 2:713844a55c4e 45 }
Geremia 2:713844a55c4e 46 void TFT::wr_data8(unsigned char data)
Geremia 2:713844a55c4e 47 {
Geremia 2:713844a55c4e 48 proto->wr_data8(data);
Geremia 2:713844a55c4e 49 }
Geremia 2:713844a55c4e 50 void TFT::wr_data8(unsigned char data, unsigned int count)
Geremia 2:713844a55c4e 51 {
Geremia 2:713844a55c4e 52 proto->wr_data8(data, count);
Geremia 2:713844a55c4e 53 }
Geremia 2:713844a55c4e 54 void TFT::wr_data8buf(unsigned char* data, unsigned int lenght)
Geremia 2:713844a55c4e 55 {
Geremia 2:713844a55c4e 56 proto->wr_data8buf(data, lenght);
Geremia 2:713844a55c4e 57 }
Geremia 2:713844a55c4e 58 void TFT::wr_cmd16(unsigned short cmd)
Geremia 2:713844a55c4e 59 {
Geremia 2:713844a55c4e 60 proto->wr_cmd16(cmd);
Geremia 2:713844a55c4e 61 }
Geremia 2:713844a55c4e 62 void TFT::wr_data16(unsigned short data)
Geremia 2:713844a55c4e 63 {
Geremia 2:713844a55c4e 64 proto->wr_data16(data);
Geremia 2:713844a55c4e 65 }
Geremia 2:713844a55c4e 66 void TFT::wr_data16(unsigned short data, unsigned int count)
Geremia 2:713844a55c4e 67 {
Geremia 2:713844a55c4e 68 proto->wr_data16(data, count);
Geremia 2:713844a55c4e 69 }
Geremia 2:713844a55c4e 70 void TFT::wr_data16buf(unsigned short* data, unsigned int lenght)
Geremia 2:713844a55c4e 71 {
Geremia 2:713844a55c4e 72 proto->wr_data16buf(data, lenght);
Geremia 2:713844a55c4e 73 }
Geremia 2:713844a55c4e 74 void TFT::hw_reset()
Geremia 2:713844a55c4e 75 {
Geremia 2:713844a55c4e 76 proto->hw_reset();
Geremia 2:713844a55c4e 77 }
Geremia 2:713844a55c4e 78 void TFT::BusEnable(bool enable)
Geremia 2:713844a55c4e 79 {
Geremia 2:713844a55c4e 80 proto->BusEnable(enable);
Geremia 2:713844a55c4e 81 }
Geremia 2:713844a55c4e 82 // color TFT can rotate in hw (swap raw<->columns) for landscape views
Geremia 2:713844a55c4e 83 void TFT::set_orientation(int o)
Geremia 2:713844a55c4e 84 {
Geremia 2:713844a55c4e 85 orientation = o;
Geremia 2:713844a55c4e 86 wr_cmd8(0x36);
Geremia 2:713844a55c4e 87 switch (orientation) {
Geremia 2:713844a55c4e 88 case 0:// default, portrait view 0°
Geremia 2:713844a55c4e 89 if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped
Geremia 2:713844a55c4e 90 else wr_data8(0x48); //48 for 9341
Geremia 2:713844a55c4e 91 set_width(LCDSIZE_X);
Geremia 2:713844a55c4e 92 set_height(LCDSIZE_Y);
Geremia 2:713844a55c4e 93 break;
Geremia 2:713844a55c4e 94 case 1:// landscape view +90°
Geremia 2:713844a55c4e 95 if(mipistd) wr_data8(0x28);
Geremia 2:713844a55c4e 96 else wr_data8(0x29);//28 for 9341
Geremia 2:713844a55c4e 97 set_width(LCDSIZE_Y);
Geremia 2:713844a55c4e 98 set_height(LCDSIZE_X);
Geremia 2:713844a55c4e 99 break;
Geremia 2:713844a55c4e 100 case 2:// portrait view +180°
Geremia 2:713844a55c4e 101 if(mipistd) wr_data8(0x09);
Geremia 2:713844a55c4e 102 else wr_data8(0x99);//88 for 9341
Geremia 2:713844a55c4e 103 set_width(LCDSIZE_X);
Geremia 2:713844a55c4e 104 set_height(LCDSIZE_Y);
Geremia 2:713844a55c4e 105 break;
Geremia 2:713844a55c4e 106 case 3:// landscape view -90°
Geremia 2:713844a55c4e 107 if(mipistd) wr_data8(0x2B);
Geremia 2:713844a55c4e 108 else wr_data8(0xF8);//E8 for 9341
Geremia 2:713844a55c4e 109 set_width(LCDSIZE_Y);
Geremia 2:713844a55c4e 110 set_height(LCDSIZE_X);
Geremia 2:713844a55c4e 111 break;
Geremia 2:713844a55c4e 112 }
Geremia 2:713844a55c4e 113 }
Geremia 2:713844a55c4e 114 // TFT have both column and raw autoincrement inside a window, with internal counters
Geremia 2:713844a55c4e 115 void TFT::window(int x, int y, int w, int h)
Geremia 2:713844a55c4e 116 {
Geremia 2:713844a55c4e 117 //ili9486 does not like truncated 2A/2B cmds, at least in par mode
Geremia 2:713844a55c4e 118 //setting only start column/page would speedup, but needs a windowmax() before, maybe implement later
Geremia 2:713844a55c4e 119 wr_cmd8(0x2A);
Geremia 2:713844a55c4e 120 wr_data16(x); //start column
Geremia 2:713844a55c4e 121 wr_data16(x+w-1);//end column
Geremia 2:713844a55c4e 122
Geremia 2:713844a55c4e 123 wr_cmd8(0x2B);
Geremia 2:713844a55c4e 124 wr_data16(y); //start page
Geremia 2:713844a55c4e 125 wr_data16(y+h-1);//end page
Geremia 2:713844a55c4e 126
Geremia 2:713844a55c4e 127 wr_cmd8(0x2C); //write mem, just send pixels color next
Geremia 2:713844a55c4e 128 }
Geremia 2:713844a55c4e 129 //for TFT, just send data, position counters are in hw
Geremia 2:713844a55c4e 130 void TFT::window_pushpixel(unsigned short color)
Geremia 2:713844a55c4e 131 {
Geremia 2:713844a55c4e 132 proto->wr_data16(color);
Geremia 2:713844a55c4e 133 }
Geremia 2:713844a55c4e 134 void TFT::window_pushpixel(unsigned short color, unsigned int count)
Geremia 2:713844a55c4e 135 {
Geremia 2:713844a55c4e 136 proto->wr_data16(color, count);
Geremia 2:713844a55c4e 137 }
Geremia 2:713844a55c4e 138 void TFT::window_pushpixelbuf(unsigned short* color, unsigned int lenght)
Geremia 2:713844a55c4e 139 {
Geremia 2:713844a55c4e 140 proto->wr_data16buf(color, lenght);
Geremia 2:713844a55c4e 141 }
Geremia 2:713844a55c4e 142 void TFT::pixel(int x, int y, unsigned short color)
Geremia 2:713844a55c4e 143 {
Geremia 2:713844a55c4e 144 window(x,y,1,1);
Geremia 2:713844a55c4e 145 wr_data16(color); // 2C expects 16bit parameters
Geremia 2:713844a55c4e 146 //proto->wr_data16(color);
Geremia 2:713844a55c4e 147 }
Geremia 2:713844a55c4e 148 void TFT::cls (void)
Geremia 2:713844a55c4e 149 {
Geremia 2:713844a55c4e 150 WindowMax();
Geremia 2:713844a55c4e 151 // wr_data16(_background,pixels);
Geremia 2:713844a55c4e 152 wr_data16(0,LCDSIZE_X*LCDSIZE_Y);
Geremia 2:713844a55c4e 153 //proto->wr_data16(_background,pixels);
Geremia 2:713844a55c4e 154 }