acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
Arduino_mbedSPI.h (1863B)
      1 /*
      2  * start rewrite from:
      3  * https://github.com/arduino/ArduinoCore-mbed/blob/master/libraries/SPI/SPI.cpp
      4  */
      5 #ifdef ARDUINO_ARCH_NRF52840
      6 
      7 #ifndef _ARDUINO_MBEDSPI_H_
      8 #define _ARDUINO_MBEDSPI_H_
      9 
     10 #include <SPI.h>
     11 #if !defined(ARDUINO_AS_MBED_LIBRARY)
     12 #include "drivers/SPIMaster.h"
     13 #else
     14 #include "drivers/SPI.h"
     15 #endif
     16 
     17 #include "Arduino_DataBus.h"
     18 
     19 #define SPI_MAX_PIXELS_AT_ONCE 32
     20 
     21 class Arduino_mbedSPI : public Arduino_DataBus
     22 {
     23 public:
     24   Arduino_mbedSPI(int8_t dc, int8_t cs = GFX_NOT_DEFINED); // Constructor
     25 
     26   bool begin(int32_t speed = GFX_NOT_DEFINED, int8_t dataMode = GFX_NOT_DEFINED) override;
     27   void beginWrite() override;
     28   void endWrite() override;
     29   void writeCommand(uint8_t) override;
     30   void writeCommand16(uint16_t) override;
     31   void write(uint8_t) override;
     32   void write16(uint16_t) override;
     33   void writeRepeat(uint16_t p, uint32_t len) override;
     34   void writePixels(uint16_t *data, uint32_t len) override;
     35 
     36   void writeC8D8(uint8_t c, uint8_t d) override;
     37   void writeC8D16(uint8_t c, uint16_t d) override;
     38   void writeC8D16D16(uint8_t c, uint16_t d1, uint16_t d2) override;
     39   void writeBytes(uint8_t *data, uint32_t len) override;
     40   void writePattern(uint8_t *data, uint8_t len, uint32_t repeat) override;
     41 
     42 private:
     43   INLINE void WRITE(uint8_t d);
     44   INLINE void WRITE16(uint16_t d);
     45   INLINE void WRITEBUF(uint8_t *buf, size_t count);
     46   INLINE void DC_HIGH(void);
     47   INLINE void DC_LOW(void);
     48   INLINE void CS_HIGH(void);
     49   INLINE void CS_LOW(void);
     50 
     51   int8_t _dc, _cs;
     52   mbed::SPI *_dev;
     53   PORTreg_t _csPortSet;
     54   PORTreg_t _csPortClr;
     55   PORTreg_t _dcPortSet;
     56   PORTreg_t _dcPortClr;
     57   ARDUINOGFX_PORT_t _dcPinMask;
     58   ARDUINOGFX_PORT_t _csPinMask;
     59 
     60   union
     61   {
     62     uint8_t _buffer[SPI_MAX_PIXELS_AT_ONCE * 2];
     63     uint16_t _buffer16[SPI_MAX_PIXELS_AT_ONCE];
     64   };
     65 };
     66 
     67 #endif // _ARDUINO_MBEDSPI_H_
     68 
     69 #endif // #ifdef ARDUINO_ARCH_NRF52840