Stepan Smejkal / UniGraphic

.

Display/TFT.cpp@5:b222a9461d6b, 2015-02-16 (annotated)

Committer:
Geremia
Date:
Mon Feb 16 00:52:24 2015 +0000
Revision:
5:b222a9461d6b
Parent:
4:12ba0ecc2c1f
Child:
7:bb0383b91104
Added pixelread for TFTs

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 /* mbed UniGraphic library - universal TFT driver class
Geremia 4:12ba0ecc2c1f 2 * Copyright (c) 2015 Giuliano Dianda
Geremia 4:12ba0ecc2c1f 3 * Released under the MIT License: http://mbed.org/license/mit
Geremia 4:12ba0ecc2c1f 4 *
Geremia 4:12ba0ecc2c1f 5 * Derived work of:
Geremia 4:12ba0ecc2c1f 6 *
Geremia 4:12ba0ecc2c1f 7 * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
Geremia 3:48f3282c2be8 8 * Copyright (c) 2013 Peter Drescher - DC2PD
Geremia 3:48f3282c2be8 9 *
Geremia 3:48f3282c2be8 10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Geremia 3:48f3282c2be8 11 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Geremia 3:48f3282c2be8 12 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Geremia 3:48f3282c2be8 13 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Geremia 3:48f3282c2be8 14 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Geremia 3:48f3282c2be8 15 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Geremia 3:48f3282c2be8 16 * THE SOFTWARE.
Geremia 3:48f3282c2be8 17 */
Geremia 3:48f3282c2be8 18
Geremia 2:713844a55c4e 19 #include "TFT.h"
Geremia 2:713844a55c4e 20
Geremia 2:713844a55c4e 21 //#include "mbed_debug.h"
Geremia 2:713844a55c4e 22
Geremia 2:713844a55c4e 23 #define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
Geremia 2:713844a55c4e 24
Geremia 2:713844a55c4e 25 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 26 : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
Geremia 2:713844a55c4e 27 {
Geremia 2:713844a55c4e 28 if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
Geremia 4:12ba0ecc2c1f 29 else if(displayproto==PAR_16) proto = new PAR16(port, CS, reset, DC, WR, RD);
Geremia 2:713844a55c4e 30 useNOP=false;
Geremia 4:12ba0ecc2c1f 31 scrollbugfix=0;
Geremia 4:12ba0ecc2c1f 32 mipistd=false;
Geremia 2:713844a55c4e 33 set_orientation(0);
Geremia 2:713844a55c4e 34 foreground(White);
Geremia 2:713844a55c4e 35 background(Black);
Geremia 2:713844a55c4e 36 set_auto_up(false); //we don't have framebuffer
Geremia 2:713844a55c4e 37 // cls();
Geremia 2:713844a55c4e 38 // locate(0,0);
Geremia 2:713844a55c4e 39 }
Geremia 2:713844a55c4e 40 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 41 : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y)
Geremia 2:713844a55c4e 42 {
Geremia 2:713844a55c4e 43 if(displayproto==SPI_8)
Geremia 2:713844a55c4e 44 {
Geremia 2:713844a55c4e 45 proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 2:713844a55c4e 46 useNOP=false;
Geremia 2:713844a55c4e 47 }
Geremia 2:713844a55c4e 48 else if(displayproto==SPI_16)
Geremia 2:713844a55c4e 49 {
Geremia 2:713844a55c4e 50 proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 2:713844a55c4e 51 useNOP=true;
Geremia 2:713844a55c4e 52 }
Geremia 4:12ba0ecc2c1f 53 scrollbugfix=0;
Geremia 4:12ba0ecc2c1f 54 mipistd=false;
Geremia 2:713844a55c4e 55 set_orientation(0);
Geremia 2:713844a55c4e 56 foreground(White);
Geremia 2:713844a55c4e 57 background(Black);
Geremia 2:713844a55c4e 58 set_auto_up(false);
Geremia 2:713844a55c4e 59 // locate(0,0);
Geremia 2:713844a55c4e 60 }
Geremia 2:713844a55c4e 61 void TFT::wr_cmd8(unsigned char cmd)
Geremia 2:713844a55c4e 62 {
Geremia 2:713844a55c4e 63 if(useNOP) proto->wr_cmd16(cmd); // 0x0000|cmd, 00 is NOP cmd for TFT
Geremia 2:713844a55c4e 64 else proto->wr_cmd8(cmd);
Geremia 2:713844a55c4e 65 }
Geremia 2:713844a55c4e 66 void TFT::wr_data8(unsigned char data)
Geremia 2:713844a55c4e 67 {
Geremia 2:713844a55c4e 68 proto->wr_data8(data);
Geremia 2:713844a55c4e 69 }
Geremia 2:713844a55c4e 70 void TFT::wr_data16(unsigned short data)
Geremia 2:713844a55c4e 71 {
Geremia 2:713844a55c4e 72 proto->wr_data16(data);
Geremia 2:713844a55c4e 73 }
Geremia 4:12ba0ecc2c1f 74 void TFT::wr_gram(unsigned short data)
Geremia 4:12ba0ecc2c1f 75 {
Geremia 4:12ba0ecc2c1f 76 proto->wr_gram(data);
Geremia 4:12ba0ecc2c1f 77 }
Geremia 4:12ba0ecc2c1f 78 void TFT::wr_gram(unsigned short data, unsigned int count)
Geremia 2:713844a55c4e 79 {
Geremia 4:12ba0ecc2c1f 80 proto->wr_gram(data, count);
Geremia 4:12ba0ecc2c1f 81 }
Geremia 4:12ba0ecc2c1f 82 void TFT::wr_grambuf(unsigned short* data, unsigned int lenght)
Geremia 4:12ba0ecc2c1f 83 {
Geremia 4:12ba0ecc2c1f 84 proto->wr_grambuf(data, lenght);
Geremia 2:713844a55c4e 85 }
Geremia 5:b222a9461d6b 86 unsigned int TFT::rd_data32_wdummy()
Geremia 5:b222a9461d6b 87 {
Geremia 5:b222a9461d6b 88 return proto->rd_data32_wdummy();
Geremia 5:b222a9461d6b 89 }
Geremia 5:b222a9461d6b 90 unsigned short TFT::rd_gram()
Geremia 5:b222a9461d6b 91 {
Geremia 5:b222a9461d6b 92 return (proto->rd_gram());
Geremia 5:b222a9461d6b 93 }
Geremia 4:12ba0ecc2c1f 94 //for TFT, just send data, position counters are in hw
Geremia 4:12ba0ecc2c1f 95 void TFT::window_pushpixel(unsigned short color)
Geremia 4:12ba0ecc2c1f 96 {
Geremia 4:12ba0ecc2c1f 97 proto->wr_gram(color);
Geremia 4:12ba0ecc2c1f 98 }
Geremia 4:12ba0ecc2c1f 99 void TFT::window_pushpixel(unsigned short color, unsigned int count)
Geremia 4:12ba0ecc2c1f 100 {
Geremia 4:12ba0ecc2c1f 101 proto->wr_gram(color, count);
Geremia 4:12ba0ecc2c1f 102 }
Geremia 4:12ba0ecc2c1f 103 void TFT::window_pushpixelbuf(unsigned short* color, unsigned int lenght)
Geremia 2:713844a55c4e 104 {
Geremia 4:12ba0ecc2c1f 105 proto->wr_grambuf(color, lenght);
Geremia 2:713844a55c4e 106 }
Geremia 2:713844a55c4e 107 void TFT::hw_reset()
Geremia 2:713844a55c4e 108 {
Geremia 2:713844a55c4e 109 proto->hw_reset();
Geremia 2:713844a55c4e 110 }
Geremia 2:713844a55c4e 111 void TFT::BusEnable(bool enable)
Geremia 2:713844a55c4e 112 {
Geremia 2:713844a55c4e 113 proto->BusEnable(enable);
Geremia 2:713844a55c4e 114 }
Geremia 2:713844a55c4e 115 // color TFT can rotate in hw (swap raw<->columns) for landscape views
Geremia 2:713844a55c4e 116 void TFT::set_orientation(int o)
Geremia 2:713844a55c4e 117 {
Geremia 2:713844a55c4e 118 orientation = o;
Geremia 2:713844a55c4e 119 wr_cmd8(0x36);
Geremia 2:713844a55c4e 120 switch (orientation) {
Geremia 2:713844a55c4e 121 case 0:// default, portrait view 0°
Geremia 2:713844a55c4e 122 if(mipistd) wr_data8(0x0A); // this is in real a vertical flip enabled, seems most displays are vertical flipped
Geremia 3:48f3282c2be8 123 else wr_data8(0x48); //for some other ILIxxxx
Geremia 2:713844a55c4e 124 set_width(LCDSIZE_X);
Geremia 2:713844a55c4e 125 set_height(LCDSIZE_Y);
Geremia 2:713844a55c4e 126 break;
Geremia 2:713844a55c4e 127 case 1:// landscape view +90°
Geremia 2:713844a55c4e 128 if(mipistd) wr_data8(0x28);
Geremia 3:48f3282c2be8 129 else wr_data8(0x29);//for some other ILIxxxx
Geremia 2:713844a55c4e 130 set_width(LCDSIZE_Y);
Geremia 2:713844a55c4e 131 set_height(LCDSIZE_X);
Geremia 2:713844a55c4e 132 break;
Geremia 2:713844a55c4e 133 case 2:// portrait view +180°
Geremia 2:713844a55c4e 134 if(mipistd) wr_data8(0x09);
Geremia 3:48f3282c2be8 135 else wr_data8(0x99);//for some other ILIxxxx
Geremia 2:713844a55c4e 136 set_width(LCDSIZE_X);
Geremia 2:713844a55c4e 137 set_height(LCDSIZE_Y);
Geremia 2:713844a55c4e 138 break;
Geremia 2:713844a55c4e 139 case 3:// landscape view -90°
Geremia 2:713844a55c4e 140 if(mipistd) wr_data8(0x2B);
Geremia 3:48f3282c2be8 141 else wr_data8(0xF8);//for some other ILIxxxx
Geremia 2:713844a55c4e 142 set_width(LCDSIZE_Y);
Geremia 2:713844a55c4e 143 set_height(LCDSIZE_X);
Geremia 2:713844a55c4e 144 break;
Geremia 2:713844a55c4e 145 }
Geremia 2:713844a55c4e 146 }
Geremia 2:713844a55c4e 147 // TFT have both column and raw autoincrement inside a window, with internal counters
Geremia 2:713844a55c4e 148 void TFT::window(int x, int y, int w, int h)
Geremia 2:713844a55c4e 149 {
Geremia 2:713844a55c4e 150 //ili9486 does not like truncated 2A/2B cmds, at least in par mode
Geremia 2:713844a55c4e 151 //setting only start column/page would speedup, but needs a windowmax() before, maybe implement later
Geremia 2:713844a55c4e 152 wr_cmd8(0x2A);
Geremia 2:713844a55c4e 153 wr_data16(x); //start column
Geremia 2:713844a55c4e 154 wr_data16(x+w-1);//end column
Geremia 2:713844a55c4e 155
Geremia 2:713844a55c4e 156 wr_cmd8(0x2B);
Geremia 2:713844a55c4e 157 wr_data16(y); //start page
Geremia 2:713844a55c4e 158 wr_data16(y+h-1);//end page
Geremia 2:713844a55c4e 159
Geremia 2:713844a55c4e 160 wr_cmd8(0x2C); //write mem, just send pixels color next
Geremia 2:713844a55c4e 161 }
Geremia 5:b222a9461d6b 162 void TFT::window4read(int x, int y, int w, int h)
Geremia 5:b222a9461d6b 163 {
Geremia 5:b222a9461d6b 164 wr_cmd8(0x2A);
Geremia 5:b222a9461d6b 165 wr_data16(x); //start column
Geremia 5:b222a9461d6b 166 wr_data16(x+w-1);//end column
Geremia 5:b222a9461d6b 167
Geremia 5:b222a9461d6b 168 wr_cmd8(0x2B);
Geremia 5:b222a9461d6b 169 wr_data16(y); //start page
Geremia 5:b222a9461d6b 170 wr_data16(y+h-1);//end page
Geremia 5:b222a9461d6b 171
Geremia 5:b222a9461d6b 172 wr_cmd8(0x2E); //read mem, just pixelread next
Geremia 5:b222a9461d6b 173 }
Geremia 2:713844a55c4e 174 void TFT::pixel(int x, int y, unsigned short color)
Geremia 2:713844a55c4e 175 {
Geremia 2:713844a55c4e 176 window(x,y,1,1);
Geremia 4:12ba0ecc2c1f 177 // proto->wr_gram(color); // 2C expects 16bit parameters
Geremia 4:12ba0ecc2c1f 178 wr_gram(color);
Geremia 2:713844a55c4e 179 }
Geremia 5:b222a9461d6b 180 unsigned short TFT::pixelread(int x, int y)
Geremia 5:b222a9461d6b 181 {
Geremia 5:b222a9461d6b 182 unsigned short color;
Geremia 5:b222a9461d6b 183 window4read(x,y,1,1);
Geremia 5:b222a9461d6b 184 // proto->wr_gram(color); // 2C expects 16bit parameters
Geremia 5:b222a9461d6b 185 color = rd_gram();
Geremia 5:b222a9461d6b 186 if(mipistd) color = BGR2RGB(color); // in case, convert BGR to RGB (should depend on cmd36 bit3) but maybe is device specific
Geremia 5:b222a9461d6b 187 return color;
Geremia 5:b222a9461d6b 188 }
Geremia 2:713844a55c4e 189 void TFT::cls (void)
Geremia 2:713844a55c4e 190 {
Geremia 2:713844a55c4e 191 WindowMax();
Geremia 4:12ba0ecc2c1f 192 // proto->wr_gram(_background,LCDSIZE_X*LCDSIZE_Y);
Geremia 4:12ba0ecc2c1f 193 // proto->wr_gram(0,LCDSIZE_X*LCDSIZE_Y);
Geremia 4:12ba0ecc2c1f 194 wr_gram(_background,LCDSIZE_X*LCDSIZE_Y);
Geremia 2:713844a55c4e 195 }