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
Protocols/PAR8.cpp
- Committer:
- Geremia
- Date:
- 2015-02-16
- Revision:
- 5:b222a9461d6b
- Parent:
- 4:12ba0ecc2c1f
- Child:
- 7:bb0383b91104
File content as of revision 5:b222a9461d6b:
/* mbed UniGraphic library - PAR8 protocol class * Copyright (c) 2015 Giuliano Dianda * Released under the MIT License: http://mbed.org/license/mit * * Derived work of: * * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller * Copyright (c) 2013 Peter Drescher - DC2PD * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "PAR8.h" PAR8::PAR8(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD) : _port(port,0xFF), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD) { _reset = 1; _DC=1; _WR=1; _RD=1; _CS=1; #ifdef STMPORTDEBUG findport(port); //on return, GPIO get disabled #endif _port.mode(PullNone); _port.output(); // will re-enable our GPIO port hw_reset(); } #ifdef STMPORTDEBUG // create a port obj with STM HAL drivers, just to collect memorymapped regs void PAR8::findport(PortName port) { port_t tempport; port_init(&tempport, port, 0xFF, PIN_INPUT); outreg = tempport.reg_out; inreg = tempport.reg_in; // debug("out 0x%.8X in 0x%.8X\r\n", outreg, inreg); } #endif void PAR8::wr_cmd8(unsigned char cmd) { #ifdef USE_CS _CS = 0; #endif _DC = 0; // 0=cmd _WR=0; _port.write(cmd); // write 8bit _WR=1; #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_data8(unsigned char data) { #ifdef USE_CS _CS = 0; #endif _DC = 1; // 1=data _WR=0; _port.write(data); // write 8bit _WR=1; #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_cmd16(unsigned short cmd) { #ifdef USE_CS _CS = 0; #endif _DC = 0; // 0=cmd _WR=0; _port.write(cmd>>8); // write 8bit _WR=1; _WR=0; _port.write(cmd&0xFF); // write 8bit _WR=1; #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_data16(unsigned short data) { #ifdef USE_CS _CS = 0; #endif _DC = 1; // 1=data _WR=0; _port.write(data>>8); // write 8bit _WR=1; _WR=0; _port.write(data&0xFF); // write 8bit _WR=1; #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_gram(unsigned short data) { #ifdef USE_CS _CS = 0; #endif _DC = 1; // 1=data _WR=0; _port.write(data>>8); // write 8bit _WR=1; _WR=0; _port.write(data&0xFF); // write 8bit _WR=1; #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_gram(unsigned short data, unsigned int count) { #ifdef USE_CS _CS = 0; #endif _DC = 1; // 1=data if((data>>8)==(data&0xFF)) { count<<=1; _port.write(data); // write 8bit while(count) { _WR=0; _WR=1; count--; } } else { while(count) { _WR=0; _port.write(data>>8); // write 8bit _WR=1; _WR=0; _port.write(data&0xFF); // write 8bit _WR=1; count--; } } #ifdef USE_CS _CS = 1; #endif } void PAR8::wr_grambuf(unsigned short* data, unsigned int lenght) { #ifdef USE_CS _CS = 0; #endif _DC = 1; // 1=data while(lenght) { _WR=0; _port.write((*data)>>8); // write 8bit _WR=1; _WR=0; _port.write((*data)&0xFF); // write 8bit _WR=1; data++; lenght--; } #ifdef USE_CS _CS = 1; #endif } unsigned int PAR8::rd_data32_wdummy() { #ifdef USE_CS _CS = 0; #endif unsigned int r=0; _DC = 1; // 1=data _port.input(); _RD = 0; _port.read(); //dummy read _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); r <<= 8; _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); r <<= 8; _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); r <<= 8; _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); _RD = 1; _CS = 1; // force CS HIG to interupt the cmd in case was not supported #ifndef USE_CS //if CS is not used, force fixed LOW again _CS = 0; #endif _port.output(); return r; } unsigned short PAR8::rd_gram() { #ifdef USE_CS _CS = 0; #endif unsigned short r=0; _DC = 1; // 1=data _port.input(); _RD = 0; _port.read(); //dummy read _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); r <<= 8; _RD = 1; _RD = 0; // _RD = 0; // add wait r |= (_port.read()&0xFF); _RD = 1; #ifdef USE_CS _CS = 1; #endif _port.output(); return r; } void PAR8::hw_reset() { wait_ms(15); _DC = 1; _CS = 1; _WR = 1; _RD = 1; _reset = 0; // display reset wait_us(50); _reset = 1; // end reset wait_ms(15); #ifndef USE_CS _CS=0; // put CS low now and forever #endif } void PAR8::BusEnable(bool enable) { _CS = enable ? 0:1; }