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/PAR16.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 - PAR16 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 #include "PAR16.h"
Geremia 4:12ba0ecc2c1f 19
Geremia 4:12ba0ecc2c1f 20 PAR16::PAR16(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD)
Geremia 4:12ba0ecc2c1f 21 : _port(port,0xFFFF), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD)
Geremia 4:12ba0ecc2c1f 22 {
Geremia 4:12ba0ecc2c1f 23 _reset = 1;
Geremia 4:12ba0ecc2c1f 24 _DC=1;
Geremia 4:12ba0ecc2c1f 25 _WR=1;
Geremia 4:12ba0ecc2c1f 26 _RD=1;
Geremia 4:12ba0ecc2c1f 27 _CS=1;
Geremia 4:12ba0ecc2c1f 28 _port.mode(PullNone);
Geremia 4:12ba0ecc2c1f 29 _port.output(); // will re-enable our GPIO port
Geremia 4:12ba0ecc2c1f 30 hw_reset();
Geremia 4:12ba0ecc2c1f 31 }
Geremia 4:12ba0ecc2c1f 32
Geremia 4:12ba0ecc2c1f 33 void PAR16::wr_cmd8(unsigned char cmd)
Geremia 20:14daa48ffd4c 34 {
Geremia 4:12ba0ecc2c1f 35 _DC = 0; // 0=cmd
Geremia 4:12ba0ecc2c1f 36 _port.write(cmd); // write 8bit
Geremia 4:12ba0ecc2c1f 37 _WR=0;
Geremia 4:12ba0ecc2c1f 38 _WR=1;
Geremia 20:14daa48ffd4c 39 _DC = 1; // 1=data next
Geremia 4:12ba0ecc2c1f 40 }
Geremia 4:12ba0ecc2c1f 41 void PAR16::wr_data8(unsigned char data)
Geremia 4:12ba0ecc2c1f 42 {
Geremia 4:12ba0ecc2c1f 43 _port.write(data); // write 8bit
Geremia 4:12ba0ecc2c1f 44 _WR=0;
Geremia 4:12ba0ecc2c1f 45 _WR=1;
Geremia 4:12ba0ecc2c1f 46 }
Geremia 4:12ba0ecc2c1f 47 void PAR16::wr_cmd16(unsigned short cmd)
Geremia 20:14daa48ffd4c 48 {
Geremia 4:12ba0ecc2c1f 49 _DC = 0; // 0=cmd
Geremia 4:12ba0ecc2c1f 50 _port.write(cmd>>8); // write 8bit
Geremia 4:12ba0ecc2c1f 51 _WR=0;
Geremia 4:12ba0ecc2c1f 52 _WR=1;
Geremia 4:12ba0ecc2c1f 53 _port.write(cmd&0xFF); // write 8bit
Geremia 4:12ba0ecc2c1f 54 _WR=0;
Geremia 4:12ba0ecc2c1f 55 _WR=1;
Geremia 20:14daa48ffd4c 56 _DC = 1; // 1=data next
Geremia 4:12ba0ecc2c1f 57 }
Geremia 4:12ba0ecc2c1f 58 void PAR16::wr_data16(unsigned short data)
Geremia 4:12ba0ecc2c1f 59 {
Geremia 4:12ba0ecc2c1f 60 _port.write(data>>8); // write 8bit
Geremia 4:12ba0ecc2c1f 61 _WR=0;
Geremia 4:12ba0ecc2c1f 62 _WR=1;
Geremia 4:12ba0ecc2c1f 63 _port.write(data&0xFF); // write 8bit
Geremia 4:12ba0ecc2c1f 64 _WR=0;
Geremia 4:12ba0ecc2c1f 65 _WR=1;
Geremia 4:12ba0ecc2c1f 66 }
Geremia 4:12ba0ecc2c1f 67 void PAR16::wr_gram(unsigned short data)
Geremia 4:12ba0ecc2c1f 68 {
Geremia 4:12ba0ecc2c1f 69 _port.write(data); // write 16bit
Geremia 4:12ba0ecc2c1f 70 _WR=0;
Geremia 4:12ba0ecc2c1f 71 _WR=1;
Geremia 4:12ba0ecc2c1f 72 }
Geremia 4:12ba0ecc2c1f 73 void PAR16::wr_gram(unsigned short data, unsigned int count)
Geremia 4:12ba0ecc2c1f 74 {
Geremia 4:12ba0ecc2c1f 75 while(count)
Geremia 4:12ba0ecc2c1f 76 {
Geremia 20:14daa48ffd4c 77 _port.write(data); // rewrite even if same data, otherwise too much fast
Geremia 4:12ba0ecc2c1f 78 _WR=0;
Geremia 4:12ba0ecc2c1f 79 _WR=1;
Geremia 4:12ba0ecc2c1f 80 count--;
Geremia 4:12ba0ecc2c1f 81 }
Geremia 4:12ba0ecc2c1f 82 }
Geremia 4:12ba0ecc2c1f 83 void PAR16::wr_grambuf(unsigned short* data, unsigned int lenght)
Geremia 4:12ba0ecc2c1f 84 {
Geremia 4:12ba0ecc2c1f 85 while(lenght)
Geremia 4:12ba0ecc2c1f 86 {
Geremia 4:12ba0ecc2c1f 87 _port.write(*data); // write 16bit
Geremia 4:12ba0ecc2c1f 88 _WR=0;
Geremia 4:12ba0ecc2c1f 89 _WR=1;
Geremia 4:12ba0ecc2c1f 90 data++;
Geremia 4:12ba0ecc2c1f 91 lenght--;
Geremia 4:12ba0ecc2c1f 92 }
Geremia 4:12ba0ecc2c1f 93 }
Geremia 11:b842b8e332cb 94 unsigned short PAR16::rd_gram(bool convert)
Geremia 5:b222a9461d6b 95 {
Geremia 11:b842b8e332cb 96 unsigned int r=0;
Geremia 7:bb0383b91104 97 _port.input();
Geremia 7:bb0383b91104 98
Geremia 7:bb0383b91104 99 _RD = 0;
Geremia 7:bb0383b91104 100 _port.read(); //dummy read
Geremia 7:bb0383b91104 101 _RD = 1;
Geremia 7:bb0383b91104 102
Geremia 7:bb0383b91104 103 _RD = 0;
Geremia 20:14daa48ffd4c 104 // _RD = 0; // add wait
Geremia 7:bb0383b91104 105 r |= _port.read();
Geremia 7:bb0383b91104 106 _RD = 1;
Geremia 11:b842b8e332cb 107 if(convert)
Geremia 11:b842b8e332cb 108 {
Geremia 11:b842b8e332cb 109 r <<= 8;
Geremia 11:b842b8e332cb 110 _RD = 0;
Geremia 11:b842b8e332cb 111 // _RD = 0; // add wait
Geremia 11:b842b8e332cb 112 r |= _port.read()>>8; //MSB of port read is blue, LSB is red of next pixel
Geremia 11:b842b8e332cb 113 _RD = 1;
Geremia 11:b842b8e332cb 114 // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit
Geremia 11:b842b8e332cb 115 // during reading, you read the raw 18bit gram
Geremia 11:b842b8e332cb 116 r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit
Geremia 11:b842b8e332cb 117 }
Geremia 7:bb0383b91104 118 _port.output();
Geremia 11:b842b8e332cb 119 return (unsigned short)r;
Geremia 7:bb0383b91104 120 }
Geremia 7:bb0383b91104 121 unsigned int PAR16::rd_reg_data32(unsigned char reg)
Geremia 7:bb0383b91104 122 {
Geremia 7:bb0383b91104 123 wr_cmd8(reg);
Geremia 5:b222a9461d6b 124 unsigned int r=0;
Geremia 20:14daa48ffd4c 125 // _DC = 1; // 1=data
Geremia 5:b222a9461d6b 126 _port.input();
Geremia 5:b222a9461d6b 127
Geremia 5:b222a9461d6b 128 _RD = 0;
Geremia 5:b222a9461d6b 129 _port.read(); //dummy read
Geremia 5:b222a9461d6b 130 _RD = 1;
Geremia 5:b222a9461d6b 131
Geremia 5:b222a9461d6b 132 _RD = 0;
Geremia 5:b222a9461d6b 133 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 134 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 135 r <<= 8;
Geremia 5:b222a9461d6b 136 _RD = 1;
Geremia 5:b222a9461d6b 137
Geremia 5:b222a9461d6b 138 _RD = 0;
Geremia 5:b222a9461d6b 139 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 140 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 141 r <<= 8;
Geremia 5:b222a9461d6b 142 _RD = 1;
Geremia 5:b222a9461d6b 143
Geremia 5:b222a9461d6b 144 _RD = 0;
Geremia 5:b222a9461d6b 145 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 146 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 147 r <<= 8;
Geremia 5:b222a9461d6b 148 _RD = 1;
Geremia 5:b222a9461d6b 149
Geremia 5:b222a9461d6b 150 _RD = 0;
Geremia 5:b222a9461d6b 151 // _RD = 0; // add wait
Geremia 5:b222a9461d6b 152 r |= (_port.read()&0xFF);
Geremia 5:b222a9461d6b 153 _RD = 1;
Geremia 5:b222a9461d6b 154
Geremia 20:14daa48ffd4c 155 _CS = 1; // toggle CS to interupt the cmd in case was not supported
Geremia 5:b222a9461d6b 156 _CS = 0;
Geremia 20:14daa48ffd4c 157
Geremia 5:b222a9461d6b 158 _port.output();
Geremia 5:b222a9461d6b 159 return r;
Geremia 5:b222a9461d6b 160 }
Geremia 7:bb0383b91104 161 // in Par mode EXTC regs (0xB0-0xFF) can be directly read
Geremia 7:bb0383b91104 162 unsigned int PAR16::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
Geremia 5:b222a9461d6b 163 {
Geremia 7:bb0383b91104 164 return rd_reg_data32(reg);
Geremia 5:b222a9461d6b 165 }
Geremia 20:14daa48ffd4c 166 // ILI932x specific
Geremia 20:14daa48ffd4c 167 void PAR16::dummyread()
Geremia 20:14daa48ffd4c 168 {
Geremia 20:14daa48ffd4c 169 _port.input();
Geremia 20:14daa48ffd4c 170 _RD = 0;
Geremia 20:14daa48ffd4c 171 _port.read(); // dummy read
Geremia 20:14daa48ffd4c 172 _RD=1;
Geremia 20:14daa48ffd4c 173 // _port.output();
Geremia 20:14daa48ffd4c 174 }
Geremia 20:14daa48ffd4c 175 // ILI932x specific
Geremia 20:14daa48ffd4c 176 void PAR16::reg_select(unsigned char reg, bool forread)
Geremia 20:14daa48ffd4c 177 {
Geremia 20:14daa48ffd4c 178 _DC = 0;
Geremia 20:14daa48ffd4c 179 _port.write(reg); // write 16bit
Geremia 20:14daa48ffd4c 180 _WR=0;
Geremia 20:14daa48ffd4c 181 _WR=1;
Geremia 20:14daa48ffd4c 182 _DC = 1; // 1=data next
Geremia 20:14daa48ffd4c 183 }
Geremia 20:14daa48ffd4c 184 // ILI932x specific
Geremia 20:14daa48ffd4c 185 void PAR16::reg_write(unsigned char reg, unsigned short data)
Geremia 20:14daa48ffd4c 186 {
Geremia 20:14daa48ffd4c 187 _DC = 0;
Geremia 20:14daa48ffd4c 188 _port.write(reg); // write 16bit
Geremia 20:14daa48ffd4c 189 _WR=0;
Geremia 20:14daa48ffd4c 190 _WR=1;
Geremia 20:14daa48ffd4c 191 _DC = 1;
Geremia 20:14daa48ffd4c 192 _port.write(data); // write 16bit
Geremia 20:14daa48ffd4c 193 _WR=0;
Geremia 20:14daa48ffd4c 194 _WR=1;
Geremia 20:14daa48ffd4c 195 }
Geremia 20:14daa48ffd4c 196 // ILI932x specific
Geremia 20:14daa48ffd4c 197 unsigned short PAR16::reg_read(unsigned char reg)
Geremia 20:14daa48ffd4c 198 {
Geremia 20:14daa48ffd4c 199 unsigned short r=0;
Geremia 20:14daa48ffd4c 200 _DC = 0;
Geremia 20:14daa48ffd4c 201 _port.write(reg); // write 16bit
Geremia 20:14daa48ffd4c 202 _WR=0;
Geremia 20:14daa48ffd4c 203 _WR=1;
Geremia 20:14daa48ffd4c 204 _DC = 1;
Geremia 20:14daa48ffd4c 205 _port.input();
Geremia 20:14daa48ffd4c 206 _RD=0;
Geremia 20:14daa48ffd4c 207 r |= _port.read(); // read 16bit
Geremia 20:14daa48ffd4c 208 _RD=1;
Geremia 20:14daa48ffd4c 209 _port.output();
Geremia 20:14daa48ffd4c 210 return r;
Geremia 20:14daa48ffd4c 211 }
Geremia 4:12ba0ecc2c1f 212 void PAR16::hw_reset()
Geremia 4:12ba0ecc2c1f 213 {
Geremia 4:12ba0ecc2c1f 214 wait_ms(15);
Geremia 4:12ba0ecc2c1f 215 _DC = 1;
Geremia 4:12ba0ecc2c1f 216 _CS = 1;
Geremia 4:12ba0ecc2c1f 217 _WR = 1;
Geremia 4:12ba0ecc2c1f 218 _RD = 1;
Geremia 4:12ba0ecc2c1f 219 _reset = 0; // display reset
Geremia 20:14daa48ffd4c 220 wait_ms(2);
Geremia 4:12ba0ecc2c1f 221 _reset = 1; // end reset
Geremia 20:14daa48ffd4c 222 wait_ms(100);
Geremia 4:12ba0ecc2c1f 223 }
Geremia 4:12ba0ecc2c1f 224 void PAR16::BusEnable(bool enable)
Geremia 4:12ba0ecc2c1f 225 {
Geremia 4:12ba0ecc2c1f 226 _CS = enable ? 0:1;
Geremia 4:12ba0ecc2c1f 227 }