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.
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Diff: Protocols/PAR8.cpp
- Revision:
- 0:75ec1b3cde17
- Child:
- 1:ff019d22b275
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Protocols/PAR8.cpp Thu Feb 12 22:22:47 2015 +0000 @@ -0,0 +1,109 @@ +#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_cmd(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 data8) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC = 1; // 1=data + _WR=0; + _port.write(data8); // write 8bit + _WR=1; +#ifdef USE_CS + _CS = 1; +#endif +} +void PAR8::wr_data8(unsigned char data8, unsigned int count) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC = 1; // 1=data + _port.write(data8); // write 8bit + while(count) + { + _WR=0; + // _WR=0; + _WR=1; + count--; + } +#ifdef USE_CS + _CS = 1; +#endif +} +void PAR8::wr_data8buf(unsigned char* data8, unsigned int lenght) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC = 1; // 1=data + while(lenght) + { + _WR=0; + _port.write(*data8++); // write 8bit + _WR=1; + lenght--; + } +#ifdef USE_CS + _CS = 1; +#endif +} +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; +} \ No newline at end of file