119 lines
4.6 KiB
C
119 lines
4.6 KiB
C
#ifndef _ADAFRUIT_SPITFT_MACROS
|
|
#define _ADAFRUIT_SPITFT_MACROS
|
|
|
|
/*
|
|
* Control Pins
|
|
* */
|
|
|
|
#ifdef USE_FAST_PINIO
|
|
#define SPI_DC_HIGH() *dcport |= dcpinmask
|
|
#define SPI_DC_LOW() *dcport &= ~dcpinmask
|
|
#define SPI_CS_HIGH() *csport |= cspinmask
|
|
#define SPI_CS_LOW() *csport &= ~cspinmask
|
|
#else
|
|
#define SPI_DC_HIGH() digitalWrite(_dc, HIGH)
|
|
#define SPI_DC_LOW() digitalWrite(_dc, LOW)
|
|
#define SPI_CS_HIGH() { if(_cs >= 0) digitalWrite(_cs, HIGH); }
|
|
#define SPI_CS_LOW() { if(_cs >= 0) digitalWrite(_cs, LOW); }
|
|
#endif
|
|
|
|
/*
|
|
* Software SPI Macros
|
|
* */
|
|
|
|
#ifdef USE_FAST_PINIO
|
|
#define SSPI_MOSI_HIGH() *mosiport |= mosipinmask
|
|
#define SSPI_MOSI_LOW() *mosiport &= ~mosipinmask
|
|
#define SSPI_SCK_HIGH() *clkport |= clkpinmask
|
|
#define SSPI_SCK_LOW() *clkport &= ~clkpinmask
|
|
#define SSPI_MISO_READ() ((*misoport & misopinmask) != 0)
|
|
#else
|
|
#define SSPI_MOSI_HIGH() digitalWrite(_mosi, HIGH)
|
|
#define SSPI_MOSI_LOW() digitalWrite(_mosi, LOW)
|
|
#define SSPI_SCK_HIGH() digitalWrite(_sclk, HIGH)
|
|
#define SSPI_SCK_LOW() digitalWrite(_sclk, LOW)
|
|
#define SSPI_MISO_READ() digitalRead(_miso)
|
|
#endif
|
|
|
|
#define SSPI_BEGIN_TRANSACTION()
|
|
#define SSPI_END_TRANSACTION()
|
|
#define SSPI_WRITE(v) spiWrite(v)
|
|
#define SSPI_WRITE16(s) SSPI_WRITE((s) >> 8); SSPI_WRITE(s)
|
|
#define SSPI_WRITE32(l) SSPI_WRITE((l) >> 24); SSPI_WRITE((l) >> 16); SSPI_WRITE((l) >> 8); SSPI_WRITE(l)
|
|
#define SSPI_WRITE_PIXELS(c,l) for(uint32_t i=0; i<(l); i+=2){ SSPI_WRITE(((uint8_t*)(c))[i+1]); SSPI_WRITE(((uint8_t*)(c))[i]); }
|
|
|
|
/*
|
|
* Hardware SPI Macros
|
|
* */
|
|
|
|
#define SPI_OBJECT SPI
|
|
|
|
#if defined (__AVR__) || defined(TEENSYDUINO) || defined(ARDUINO_ARCH_STM32F1)
|
|
#define HSPI_SET_CLOCK() SPI_OBJECT.setClockDivider(SPI_CLOCK_DIV2);
|
|
#elif defined (__arm__)
|
|
#define HSPI_SET_CLOCK() SPI_OBJECT.setClockDivider(11);
|
|
#elif defined(ESP8266) || defined(ESP32)
|
|
#define HSPI_SET_CLOCK() SPI_OBJECT.setFrequency(_freq);
|
|
#elif defined(RASPI)
|
|
#define HSPI_SET_CLOCK() SPI_OBJECT.setClock(_freq);
|
|
#elif defined(ARDUINO_ARCH_STM32F1)
|
|
#define HSPI_SET_CLOCK() SPI_OBJECT.setClock(_freq);
|
|
#else
|
|
#define HSPI_SET_CLOCK()
|
|
#endif
|
|
|
|
#ifdef SPI_HAS_TRANSACTION
|
|
#define HSPI_BEGIN_TRANSACTION() SPI_OBJECT.beginTransaction(SPISettings(_freq, MSBFIRST, SPI_MODE0))
|
|
#define HSPI_END_TRANSACTION() SPI_OBJECT.endTransaction()
|
|
#else
|
|
#define HSPI_BEGIN_TRANSACTION() HSPI_SET_CLOCK(); SPI_OBJECT.setBitOrder(MSBFIRST); SPI_OBJECT.setDataMode(SPI_MODE0)
|
|
#define HSPI_END_TRANSACTION()
|
|
#endif
|
|
|
|
#ifdef ESP32
|
|
#define SPI_HAS_WRITE_PIXELS
|
|
#endif
|
|
#if defined(ESP8266) || defined(ESP32)
|
|
// Optimized SPI (ESP8266 and ESP32)
|
|
#define HSPI_READ() SPI_OBJECT.transfer(0)
|
|
#define HSPI_WRITE(b) SPI_OBJECT.write(b)
|
|
#define HSPI_WRITE16(s) SPI_OBJECT.write16(s)
|
|
#define HSPI_WRITE32(l) SPI_OBJECT.write32(l)
|
|
#ifdef SPI_HAS_WRITE_PIXELS
|
|
#define SPI_MAX_PIXELS_AT_ONCE 32
|
|
#define HSPI_WRITE_PIXELS(c,l) SPI_OBJECT.writePixels(c,l)
|
|
#else
|
|
#define HSPI_WRITE_PIXELS(c,l) for(uint32_t i=0; i<((l)/2); i++){ SPI_WRITE16(((uint16_t*)(c))[i]); }
|
|
#endif
|
|
#else
|
|
// Standard Byte-by-Byte SPI
|
|
|
|
#if defined (__AVR__) || defined(TEENSYDUINO)
|
|
static inline uint8_t _avr_spi_read(void) __attribute__((always_inline));
|
|
static inline uint8_t _avr_spi_read(void) {
|
|
uint8_t r = 0;
|
|
SPDR = r;
|
|
while(!(SPSR & _BV(SPIF)));
|
|
r = SPDR;
|
|
return r;
|
|
}
|
|
#define HSPI_WRITE(b) {SPDR = (b); while(!(SPSR & _BV(SPIF)));}
|
|
#define HSPI_READ() _avr_spi_read()
|
|
#else
|
|
#define HSPI_WRITE(b) SPI_OBJECT.transfer((uint8_t)(b))
|
|
#define HSPI_READ() HSPI_WRITE(0)
|
|
#endif
|
|
#define HSPI_WRITE16(s) HSPI_WRITE((s) >> 8); HSPI_WRITE(s)
|
|
#define HSPI_WRITE32(l) HSPI_WRITE((l) >> 24); HSPI_WRITE((l) >> 16); HSPI_WRITE((l) >> 8); HSPI_WRITE(l)
|
|
#define HSPI_WRITE_PIXELS(c,l) for(uint32_t i=0; i<(l); i+=2){ HSPI_WRITE(((uint8_t*)(c))[i+1]); HSPI_WRITE(((uint8_t*)(c))[i]); }
|
|
#endif
|
|
|
|
#define SPI_BEGIN() if(_sclk < 0){SPI_OBJECT.begin();}
|
|
#define SPI_BEGIN_TRANSACTION() if(_sclk < 0){HSPI_BEGIN_TRANSACTION();}
|
|
#define SPI_END_TRANSACTION() if(_sclk < 0){HSPI_END_TRANSACTION();}
|
|
#define SPI_WRITE16(s) if(_sclk < 0){HSPI_WRITE16(s);}else{SSPI_WRITE16(s);}
|
|
#define SPI_WRITE32(l) if(_sclk < 0){HSPI_WRITE32(l);}else{SSPI_WRITE32(l);}
|
|
#define SPI_WRITE_PIXELS(c,l) if(_sclk < 0){HSPI_WRITE_PIXELS(c,l);}else{SSPI_WRITE_PIXELS(c,l);}
|
|
|
|
#endif // _ADAFRUIT_SPITFT_MACROS
|