Radu Radoveneanu / 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.

Fork of UniGraphic by GraphicsDisplay

Protocols/PAR8.cpp@22:62f3bed03503, 2015-05-06 (annotated)

Committer:
rakware
Date:
Wed May 06 16:52:07 2015 +0000
Revision:
22:62f3bed03503
Parent:
20:14daa48ffd4c 
added touch for ADS7843 bound to TFT class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 /* mbed UniGraphic library - PAR8 protocol 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 4:12ba0ecc2c1f 8 * Copyright (c) 2013 Peter Drescher - DC2PD
Geremia 4:12ba0ecc2c1f 9 *
Geremia 4:12ba0ecc2c1f 10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Geremia 4:12ba0ecc2c1f 11 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Geremia 4:12ba0ecc2c1f 12 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Geremia 4:12ba0ecc2c1f 13 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Geremia 4:12ba0ecc2c1f 14 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Geremia 4:12ba0ecc2c1f 15 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Geremia 4:12ba0ecc2c1f 16 * THE SOFTWARE.
Geremia 4:12ba0ecc2c1f 17 */
Geremia 4:12ba0ecc2c1f 18
Geremia 0:75ec1b3cde17 19 #include "PAR8.h"
Geremia 0:75ec1b3cde17 20
Geremia 0:75ec1b3cde17 21 PAR8::PAR8(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD)
Geremia 0:75ec1b3cde17 22 : _port(port,0xFF), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD)
Geremia 0:75ec1b3cde17 23 {
Geremia 0:75ec1b3cde17 24 _reset = 1;
Geremia 0:75ec1b3cde17 25 _DC=1;
Geremia 0:75ec1b3cde17 26 _WR=1;
Geremia 0:75ec1b3cde17 27 _RD=1;
Geremia 0:75ec1b3cde17 28 _CS=1;
Geremia 0:75ec1b3cde17 29 _port.mode(PullNone);
Geremia 0:75ec1b3cde17 30 _port.output(); // will re-enable our GPIO port
Geremia 0:75ec1b3cde17 31 hw_reset();
Geremia 0:75ec1b3cde17 32 }
Geremia 0:75ec1b3cde17 33
Geremia 1:ff019d22b275 34 void PAR8::wr_cmd8(unsigned char cmd)
Geremia 20:14daa48ffd4c 35 {
Geremia 0:75ec1b3cde17 36 _DC = 0; // 0=cmd
Geremia 20:14daa48ffd4c 37 _port.write(cmd); // write 8bit
Geremia 0:75ec1b3cde17 38 _WR=0;
Geremia 0:75ec1b3cde17 39 _WR=1;
Geremia 20:14daa48ffd4c 40 _DC = 1; // 1=data next
Geremia 0:75ec1b3cde17 41 }
Geremia 1:ff019d22b275 42 void PAR8::wr_data8(unsigned char data)
Geremia 0:75ec1b3cde17 43 {
Geremia 20:14daa48ffd4c 44 _port.write(data); // write 8bit
Geremia 0:75ec1b3cde17 45 _WR=0;
Geremia 0:75ec1b3cde17 46 _WR=1;
Geremia 0:75ec1b3cde17 47 }
Geremia 1:ff019d22b275 48 void PAR8::wr_cmd16(unsigned short cmd)
Geremia 20:14daa48ffd4c 49 {
Geremia 1:ff019d22b275 50 _DC = 0; // 0=cmd
Geremia 1:ff019d22b275 51 _port.write(cmd>>8); // write 8bit
Geremia 1:ff019d22b275 52 _WR=0;
Geremia 1:ff019d22b275 53 _WR=1;
Geremia 20:14daa48ffd4c 54 _port.write(cmd&0xFF); // write 8bit
Geremia 20:14daa48ffd4c 55 _WR=0;
Geremia 20:14daa48ffd4c 56 _WR=1;
Geremia 20:14daa48ffd4c 57 _DC = 1; // 1=data next
Geremia 1:ff019d22b275 58 }
Geremia 1:ff019d22b275 59 void PAR8::wr_data16(unsigned short data)
Geremia 1:ff019d22b275 60 {
Geremia 20:14daa48ffd4c 61 _port.write(data>>8); // write 8bit
Geremia 1:ff019d22b275 62 _WR=0;
Geremia 1:ff019d22b275 63 _WR=1;
Geremia 20:14daa48ffd4c 64 _port.write(data&0xFF); // write 8bit
Geremia 1:ff019d22b275 65 _WR=0;
Geremia 1:ff019d22b275 66 _WR=1;
Geremia 1:ff019d22b275 67 }
Geremia 4:12ba0ecc2c1f 68 void PAR8::wr_gram(unsigned short data)
Geremia 4:12ba0ecc2c1f 69 {
Geremia 20:14daa48ffd4c 70 _port.write(data>>8); // write 8bit
Geremia 4:12ba0ecc2c1f 71 _WR=0;
Geremia 4:12ba0ecc2c1f 72 _WR=1;
Geremia 20:14daa48ffd4c 73 _port.write(data&0xFF); // write 8bit
Geremia 4:12ba0ecc2c1f 74 _WR=0;
Geremia 4:12ba0ecc2c1f 75 _WR=1;
Geremia 4:12ba0ecc2c1f 76 }
Geremia 4:12ba0ecc2c1f 77 void PAR8::wr_gram(unsigned short data, unsigned int count)
Geremia 1:ff019d22b275 78 {
Geremia 1:ff019d22b275 79 if((data>>8)==(data&0xFF))
Geremia 1:ff019d22b275 80 {
Geremia 1:ff019d22b275 81 count<<=1;
Geremia 20:14daa48ffd4c 82 // _port.write(data); // write 8bit
Geremia 1:ff019d22b275 83 while(count)
Geremia 1:ff019d22b275 84 {
Geremia 20:14daa48ffd4c 85 _port.write(data); // rewrite even if same data, otherwise too much fast
Geremia 1:ff019d22b275 86 _WR=0;
Geremia 1:ff019d22b275 87 _WR=1;
Geremia 1:ff019d22b275 88 count--;
Geremia 1:ff019d22b275 89 }
Geremia 1:ff019d22b275 90 }
Geremia 1:ff019d22b275 91 else
Geremia 1:ff019d22b275 92 {
Geremia 1:ff019d22b275 93 while(count)
Geremia 1:ff019d22b275 94 {
Geremia 20:14daa48ffd4c 95 _port.write(data>>8); // write 8bit
Geremia 1:ff019d22b275 96 _WR=0;
Geremia 1:ff019d22b275 97 _WR=1;
Geremia 20:14daa48ffd4c 98 _port.write(data&0xFF); // write 8bit
Geremia 1:ff019d22b275 99 _WR=0;
Geremia 1:ff019d22b275 100 _WR=1;
Geremia 1:ff019d22b275 101 count--;
Geremia 1:ff019d22b275 102 }
Geremia 1:ff019d22b275 103 }
Geremia 1:ff019d22b275 104 }
Geremia 4:12ba0ecc2c1f 105 void PAR8::wr_grambuf(unsigned short* data, unsigned int lenght)
Geremia 1:ff019d22b275 106 {
Geremia 1:ff019d22b275 107 while(lenght)
Geremia 1:ff019d22b275 108 {
Geremia 20:14daa48ffd4c 109 _port.write((*data)>>8); // write 8bit
Geremia 1:ff019d22b275 110 _WR=0;
Geremia 1:ff019d22b275 111 _WR=1;
Geremia 20:14daa48ffd4c 112 _port.write((*data)&0xFF); // write 8bit
Geremia 1:ff019d22b275 113 _WR=0;
Geremia 1:ff019d22b275 114 _WR=1;
Geremia 1:ff019d22b275 115 data++;
Geremia 1:ff019d22b275 116 lenght--;
Geremia 1:ff019d22b275 117 }
Geremia 1:ff019d22b275 118 }
Geremia 11:b842b8e332cb 119 unsigned short PAR8::rd_gram(bool convert)
Geremia 5:b222a9461d6b 120 {
Geremia 11:b842b8e332cb 121 unsigned int r=0;
Geremia 7:bb0383b91104 122 _port.input();
Geremia 7:bb0383b91104 123
Geremia 7:bb0383b91104 124 _RD = 0;
Geremia 20:14daa48ffd4c 125 _RD = 0; // add wait
Geremia 7:bb0383b91104 126 _port.read(); //dummy read
Geremia 7:bb0383b91104 127 _RD = 1;
Geremia 7:bb0383b91104 128
Geremia 7:bb0383b91104 129 _RD = 0;
Geremia 20:14daa48ffd4c 130 _RD = 0; // add wait
Geremia 20:14daa48ffd4c 131 r |= _port.read();
Geremia 20:14daa48ffd4c 132 _RD = 1;
Geremia 7:bb0383b91104 133 r <<= 8;
Geremia 7:bb0383b91104 134
Geremia 7:bb0383b91104 135 _RD = 0;
Geremia 20:14daa48ffd4c 136 _RD = 0; // add wait
Geremia 20:14daa48ffd4c 137 r |= _port.read();
Geremia 7:bb0383b91104 138 _RD = 1;
Geremia 11:b842b8e332cb 139 if(convert)
Geremia 11:b842b8e332cb 140 {
Geremia 11:b842b8e332cb 141 r <<= 8;
Geremia 11:b842b8e332cb 142 _RD = 0;
Geremia 11:b842b8e332cb 143 // _RD = 0; // add wait
Geremia 11:b842b8e332cb 144 r |= _port.read();
Geremia 11:b842b8e332cb 145 _RD = 1;
Geremia 11:b842b8e332cb 146 // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit
Geremia 11:b842b8e332cb 147 // during reading, you read the raw 18bit gram
Geremia 11:b842b8e332cb 148 r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit
Geremia 11:b842b8e332cb 149 }
Geremia 7:bb0383b91104 150 _port.output();
Geremia 11:b842b8e332cb 151 return (unsigned short)r;
Geremia 7:bb0383b91104 152 }
Geremia 7:bb0383b91104 153 unsigned int PAR8::rd_reg_data32(unsigned char reg)
Geremia 7:bb0383b91104 154 {
Geremia 7:bb0383b91104 155 wr_cmd8(reg);
Geremia 5:b222a9461d6b 156 unsigned int r=0;
Geremia 5:b222a9461d6b 157 _port.input();
Geremia 5:b222a9461d6b 158
Geremia 5:b222a9461d6b 159 _RD = 0;
Geremia 5:b222a9461d6b 160 _port.read(); //dummy read
Geremia 5:b222a9461d6b 161 _RD = 1;
Geremia 5:b222a9461d6b 162
Geremia 5:b222a9461d6b 163 _RD = 0;
Geremia 5:b222a9461d6b 164 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 165 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 166 r <<= 8;
Geremia 5:b222a9461d6b 167 _RD = 1;
Geremia 5:b222a9461d6b 168
Geremia 5:b222a9461d6b 169 _RD = 0;
Geremia 5:b222a9461d6b 170 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 171 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 172 r <<= 8;
Geremia 5:b222a9461d6b 173 _RD = 1;
Geremia 5:b222a9461d6b 174
Geremia 5:b222a9461d6b 175 _RD = 0;
Geremia 5:b222a9461d6b 176 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 177 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 178 r <<= 8;
Geremia 5:b222a9461d6b 179 _RD = 1;
Geremia 5:b222a9461d6b 180
Geremia 5:b222a9461d6b 181 _RD = 0;
Geremia 5:b222a9461d6b 182 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 183 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 184 _RD = 1;
Geremia 5:b222a9461d6b 185
Geremia 5:b222a9461d6b 186 _CS = 1; // force CS HIG to interupt the cmd in case was not supported
Geremia 5:b222a9461d6b 187 _CS = 0;
Geremia 5:b222a9461d6b 188 _port.output();
Geremia 5:b222a9461d6b 189 return r;
Geremia 5:b222a9461d6b 190 }
Geremia 7:bb0383b91104 191 // in Par mode EXTC regs (0xB0-0xFF) can be directly read
Geremia 7:bb0383b91104 192 unsigned int PAR8::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
Geremia 5:b222a9461d6b 193 {
Geremia 7:bb0383b91104 194 return rd_reg_data32(reg);
Geremia 5:b222a9461d6b 195 }
Geremia 20:14daa48ffd4c 196 // ILI932x specific
Geremia 20:14daa48ffd4c 197 void PAR8::dummyread()
Geremia 20:14daa48ffd4c 198 {
Geremia 20:14daa48ffd4c 199 _port.input();
Geremia 20:14daa48ffd4c 200 _RD=0;
Geremia 20:14daa48ffd4c 201 _RD=0; // add wait
Geremia 20:14daa48ffd4c 202 _port.read(); // dummy read
Geremia 20:14daa48ffd4c 203 _RD=1;
Geremia 20:14daa48ffd4c 204 // _port.output();
Geremia 20:14daa48ffd4c 205 }
Geremia 20:14daa48ffd4c 206 // ILI932x specific
Geremia 20:14daa48ffd4c 207 void PAR8::reg_select(unsigned char reg, bool forread)
Geremia 20:14daa48ffd4c 208 {
Geremia 20:14daa48ffd4c 209 _DC = 0;
Geremia 20:14daa48ffd4c 210 _port.write(0); // write MSB
Geremia 20:14daa48ffd4c 211 _WR=0;
Geremia 20:14daa48ffd4c 212 _WR=1;
Geremia 20:14daa48ffd4c 213 _port.write(reg); // write LSB
Geremia 20:14daa48ffd4c 214 _WR=0;
Geremia 20:14daa48ffd4c 215 _WR=1;
Geremia 20:14daa48ffd4c 216 _DC = 1; // 1=data next
Geremia 20:14daa48ffd4c 217 }
Geremia 20:14daa48ffd4c 218 // ILI932x specific
Geremia 20:14daa48ffd4c 219 void PAR8::reg_write(unsigned char reg, unsigned short data)
Geremia 20:14daa48ffd4c 220 {
Geremia 20:14daa48ffd4c 221 _DC = 0;
Geremia 20:14daa48ffd4c 222 _port.write(0); // write MSB
Geremia 20:14daa48ffd4c 223 _WR=0;
Geremia 20:14daa48ffd4c 224 _WR=1;
Geremia 20:14daa48ffd4c 225 _port.write(reg); // write MSB
Geremia 20:14daa48ffd4c 226 _WR=0;
Geremia 20:14daa48ffd4c 227 _WR=1;
Geremia 20:14daa48ffd4c 228 _DC = 1;
Geremia 20:14daa48ffd4c 229 _port.write(data>>8);
Geremia 20:14daa48ffd4c 230 _WR=0;
Geremia 20:14daa48ffd4c 231 _WR=1;
Geremia 20:14daa48ffd4c 232 _port.write(data&0xFF);
Geremia 20:14daa48ffd4c 233 _WR=0;
Geremia 20:14daa48ffd4c 234 _WR=1;
Geremia 20:14daa48ffd4c 235 }
Geremia 20:14daa48ffd4c 236 // ILI932x specific
Geremia 20:14daa48ffd4c 237 unsigned short PAR8::reg_read(unsigned char reg)
Geremia 20:14daa48ffd4c 238 {
Geremia 20:14daa48ffd4c 239 unsigned short r=0;
Geremia 20:14daa48ffd4c 240 _DC = 0;
Geremia 20:14daa48ffd4c 241 _port.write(0);
Geremia 20:14daa48ffd4c 242 _WR=0;
Geremia 20:14daa48ffd4c 243 _WR=1;
Geremia 20:14daa48ffd4c 244 _port.write(reg);
Geremia 20:14daa48ffd4c 245 _WR=0;
Geremia 20:14daa48ffd4c 246 _WR=1;
Geremia 20:14daa48ffd4c 247 _DC = 1;
Geremia 20:14daa48ffd4c 248 _port.input();
Geremia 20:14daa48ffd4c 249 _RD=0;
Geremia 20:14daa48ffd4c 250 r |= _port.read(); // read 8bit
Geremia 20:14daa48ffd4c 251 _RD=1;
Geremia 20:14daa48ffd4c 252 r <<= 8;
Geremia 20:14daa48ffd4c 253 _RD=0;
Geremia 20:14daa48ffd4c 254 r |= _port.read(); // read 8bit
Geremia 20:14daa48ffd4c 255 _RD=1;
Geremia 20:14daa48ffd4c 256 _port.output();
Geremia 20:14daa48ffd4c 257
Geremia 20:14daa48ffd4c 258 return r;
Geremia 20:14daa48ffd4c 259 }
Geremia 0:75ec1b3cde17 260 void PAR8::hw_reset()
Geremia 0:75ec1b3cde17 261 {
Geremia 0:75ec1b3cde17 262 wait_ms(15);
Geremia 0:75ec1b3cde17 263 _DC = 1;
Geremia 0:75ec1b3cde17 264 _CS = 1;
Geremia 0:75ec1b3cde17 265 _WR = 1;
Geremia 0:75ec1b3cde17 266 _RD = 1;
Geremia 0:75ec1b3cde17 267 _reset = 0; // display reset
Geremia 20:14daa48ffd4c 268 wait_ms(2);
Geremia 0:75ec1b3cde17 269 _reset = 1; // end reset
Geremia 20:14daa48ffd4c 270 wait_ms(100);
Geremia 0:75ec1b3cde17 271 }
Geremia 0:75ec1b3cde17 272 void PAR8::BusEnable(bool enable)
Geremia 0:75ec1b3cde17 273 {
Geremia 0:75ec1b3cde17 274 _CS = enable ? 0:1;
Geremia 0:75ec1b3cde17 275 }