1  /*
  2    TFT/VGA driver
  3    DMA TFT driver based on C64 ILI9341 dma driver from Frank Bösing, 2017
  4  */
  5  
  6  #ifndef _T4_DSPH_
  7  #define _T4_DSPH_
  8  
  9  #ifdef __cplusplus
 10  #include <Arduino.h>
 11  #include <DMAChannel.h>
 12  #endif
 13  
 14  #include "platform_config.h"
 15  #include "iopins.h"
 16  
 17  
 18  
 19  #ifndef TFT_WIDTH
 20  #define TFT_WIDTH      320 
 21  #endif
 22  #define TFT_REALWIDTH  320
 23  
 24  #ifndef TFT_HEIGHT
 25  #define TFT_HEIGHT     240
 26  #endif
 27  #define TFT_REALHEIGHT 240
 28  
 29  
 30  typedef enum gfx_mode_t
 31  {
 32    MODE_UNDEFINED   = 0,
 33    MODE_TFTILI_320x240 = 1,
 34    MODE_TFTST_320x240 = 2,
 35    MODE_VGA_320x240 = 3,
 36    MODE_VGA_320x480 = 4,
 37    MODE_VGA_352x240 = 5,
 38    MODE_VGA_352x480 = 6,
 39    MODE_VGA_512x240 = 7,
 40    MODE_VGA_512x480 = 8,
 41    MODE_VGA_640x240 = 9,
 42    MODE_VGA_640x480 = 10
 43  } gfx_mode_t;
 44  
 45  typedef enum gfx_error_t
 46  {
 47    GFX_OK = 0,
 48    GFX_ERROR = -1
 49  } gfx_error_t;
 50  
 51  
 52  #ifdef __cplusplus
 53  
 54  class T4_DSP
 55  {
 56    public:
 57      T4_DSP();
 58  
 59      gfx_error_t begin(gfx_mode_t mode);
 60      gfx_mode_t getMode(void);
 61      void startRefresh(void);
 62      void stopRefresh();
 63      
 64      int get_frame_buffer_size(int *width, int *height);
 65      void setArea(uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2);
 66  
 67      // wait next Vsync
 68      void waitSync();
 69      void waitLine(int line);
 70      
 71      // NoDMA functions
 72      void fillScreenNoDma(uint16_t color);
 73      void drawTextNoDma(int16_t x, int16_t y, const char * text, uint16_t fgcolor, uint16_t bgcolor, bool doublesize);
 74      void drawRectNoDma(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
 75      void drawSpriteNoDma(int16_t x, int16_t y, const uint16_t *bitmap);
 76      void drawSpriteNoDma(int16_t x, int16_t y, const uint16_t *bitmap, uint16_t croparx, uint16_t cropary, uint16_t croparw, uint16_t croparh);
 77  
 78      // DMA functions
 79      void fillScreen(uint16_t color);
 80      void drawText(int16_t x, int16_t y, const char * text, uint16_t fgcolor, uint16_t bgcolor, bool doublesize);
 81      void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
 82      void drawSprite(int16_t x, int16_t y, const uint16_t *bitmap);
 83      void drawSprite(int16_t x, int16_t y, const uint16_t *bitmap, uint16_t croparx, uint16_t cropary, uint16_t croparw, uint16_t croparh);
 84  
 85      void writeLine(int width, int height, int y, uint16_t *buf);
 86      void writeLinePal(int width, int height, int y, uint8_t *buf, uint16_t *palette16);
 87      void writeScreenPal(int width, int height, int stride, uint8_t *buf, uint16_t *palette16);
 88      void writeLine8(int width, int height, int y, uint8_t *buf, uint16_t *palette16);
 89    
 90    protected:   
 91      static uint8_t _rst, _cs, _dc;
 92      static uint8_t _mosi, _sclk;
 93      static uint8_t _vsync_pin;
 94      static DMAChannel flexio1DMA;
 95      static DMAChannel flexio2DMA; 
 96      void tft_setup(bool isST);
 97      static void TFT_isr(void);
 98      static void QT3_isr(void);
 99  };
100  
101  #endif
102  #endif