Adafruit-GFX-Library/olde/ttt.ttt

#define TFT_HARD_SPI 0
#define TFT_SOFT_SPI 1
#define TFT_PARALLEL 2

#if defined(USE_FAST_PINIO)
#if defined(HAS_PORT_SET_CLR)
 #define TFT_CS_HIGH()       { *csPortSet   = csPinMask;               }
 #define TFT_CS_LOW()        { *csPortClr   = csPinMask;               }
 #define TFT_DC_HIGH()       { *dcPortSet   = dcPinMask;               }
 #define TFT_DC_LOW()        { *dcPortClr   = dcPinMask;               }
 #define TFT_MOSI_HIGH()     { *mosiPortSet = mosiPinMask;             }
 #define TFT_MOSI_LOW()      { *mosiPortClr = mosiPinMask;             }
 #define TFT_SCK_HIGH()      { *sckPortSet  = sckPinMask;              }
 #define TFT_SCK_LOW()       { *sckPortClr  = sckPinMask;              }
 #define TFT_WR_HIGH()       { *wrPortSet   = wrPinMask;               }
 #define TFT_WR_LOW()        { *wrPortClr   = wrPinMask;               }
 #define TFT_RD_HIGH()       { *rdPortSet   = rdPinMask;               }
 #define TFT_RD_LOW()        { *rdPortClr   = rdPinMask;               }
 #define TFT_PORT_OUTPUT()   { *dirSet      = 0xFF;                    }
 #define TFT_PORT_INPUT()    { *dirClr      = 0xFF;                    }
 #define TFT_PORT_OUTPUT16() { *(volatile uint16_t *)dirSet = 0xFFFF;  }
 #define TFT_PORT_INPUT16()  { *(volatile uint16_t *)dirClr = 0xFFFF;  }
#else  // !HAS_PORT_SET_CLR
 #define TFT_CS_HIGH()       { *csPort     |= csPinMaskSet;            }
 #define TFT_CS_LOW()        { *csPort     &= csPinMaskClr;            }
 #define TFT_DC_HIGH()       { *dcPort     |= dcPinMaskSet;            }
 #define TFT_DC_LOW()        { *dcPort     &= dcPinMaskClr;            }
 #define TFT_MOSI_HIGH()     { *mosiPort   |= mosiPinMaskSet;          }
 #define TFT_MOSI_LOW()      { *mosiPort   &= mosiPinMaskClr;          }
 #define TFT_SCK_HIGH()      { *sckPort    |= sckPinMaskSet;           }
 #define TFT_SCK_LOW()       { *sckPort    &= sckPinMaskClr;           }
 #define TFT_WR_HIGH()       { *wrPort     |= wrPinMaskSet;            }
 #define TFT_WR_LOW()        { *wrPort     &= wrPinMaskClr;            }
 #define TFT_RD_HIGH()       { *rdPort     |= rdPinMaskSet;            }
 #define TFT_RD_LOW()        { *rdPort     &= rdPinMaskClr;            }
 #define TFT_PORT_OUTPUT()   { *portDir     = 0xFF;                    }
 #define TFT_PORT_INPUT()    { *portDir     = 0x00;                    }
 #define TFT_PORT_OUTPUT16() { *(volatile uint16_t *)portDir = 0xFFFF; }
 #define TFT_PORT_INPUT16()  { *(volatile uint16_t *)portDir = 0x0000; }
#endif // end HAS_PORT_SET_CLR
 #define TFT_SPI_READ()      (*misoPort & misoPinMask)
#else  // !USE_FAST_PINIO
 #define TFT_CS_HIGH()       digitalWrite(_cs  , HIGH)
 #define TFT_CS_LOW()        digitalWrite(_cs  , LOW )
 #define TFT_DC_HIGH()       digitalWrite(_dc  , HIGH)
 #define TFT_DC_LOW()        digitalWrite(_dc  , LOW )
 #define TFT_MOSI_HIGH()     digitalWrite(_mosi, HIGH)
 #define TFT_MOSI_LOW()      digitalWrite(_mosi, LOW )
 #define TFT_SCK_HIGH()      digitalWrite(_sck , HIGH)
 #define TFT_SCK_LOW()       digitalWrite(_sck , LOW )
 #define TFT_WR_HIGH()       digitalWrite(_wr  , HIGH)
 #define TFT_WR_LOW()        digitalWrite(_wr  , LOW )
 #define TFT_RD_HIGH()       digitalWrite(_rd  , HIGH)
 #define TFT_RD_LOW()        digitalWrite(_rd  , LOW )
 #define TFT_PORT_OUTPUT()   { } // 8-bit parallel is not supported
 #define TFT_PORT_INPUT()    { } // if USE_FAST_PINIO is unavailable.
 #define TFT_PORT_OUTPUT16() { } // No plans to implement this. If no
 #define TFT_PORT_INPUT16()  { } // PORT access, use an SPI display!
 #define TFT_SPI_READ()      digitalRead(_miso)
#endif // end USE_FAST_PINIO