st7735r.h

#pragma once

#if defined(ST7735R) || defined(ST7735S) || defined(ST7789) || defined(ST7789VW)

// On Arduino "A000096" 160x128 ST7735R LCD Screen, the following speed configurations have been tested (on a Pi 3B):
// core_freq=355: CDIV=6, results in 59.167MHz, works
// core_freq=360: CDIV=6, would result in 60.00MHz, this would work for several minutes, but then the display would turn all white at random

// On Adafruit 1.54" 240x240 Wide Angle TFT LCD Display with MicroSD ST7789 screen, the following speed configurations have been tested (on a Pi 3B):
// core_freq=340: CDIV=4, results in 85.00MHz, works
// core_freq=350: CDIV=4, would result in 87.50MHz, which would work for a while, but generate random single pixel glitches every once in a few minutes

// Data specific to the ILI9341 controller
#define DISPLAY_SET_CURSOR_X 0x2A
#define DISPLAY_SET_CURSOR_Y 0x2B
#define DISPLAY_WRITE_PIXELS 0x2C

#if defined(ST7789) || defined(ST7789VW)
#define DISPLAY_NATIVE_WIDTH 240
#define DISPLAY_NATIVE_HEIGHT 240
#elif defined(ST7735R)
#define DISPLAY_NATIVE_WIDTH 128
#define DISPLAY_NATIVE_HEIGHT 160
#elif defined(ST7735S)
// ST7735S displays are 128x128 pixels, but they have a somewhat odd offset that X,Y=(0,0) is not top-left corner pixel, but X,Y=(2,1) is.
// Therefore consider the display two pixels wider and one pixel higher, and add a constant offset of X=+2, Y=+1 via the DISPLAY_COVERED_* mechanism.

#define DISPLAY_NATIVE_WIDTH 130
#define DISPLAY_NATIVE_HEIGHT 129

#define DISPLAY_NATIVE_COVERED_LEFT_SIDE 2
#define DISPLAY_NATIVE_COVERED_TOP_SIDE 1

#else
#error Unknown display controller!
#endif

#ifdef WAVESHARE_ST7789VW_HAT
#include "waveshare_st7789vw_hat.h"
#elif defined(WAVESHARE_ST7735S_HAT)
#include "waveshare_st7735s_hat.h"
#endif

#define InitSPIDisplay InitST7735R

void InitST7735R(void);

void TurnDisplayOn(void);
void TurnDisplayOff(void);

#if defined(ST7789) || defined(ST7789VW)
// Unlike all other displays developed so far, Adafruit 1.54" 240x240 ST7789 display
// actually needs to observe the CS line toggle during execution, it cannot just be always activated.
// (ST7735R does not care about this)
// TODO: It is actually untested if ST7789VW really needs this, but does work with it, so kept for now
#define DISPLAY_NEEDS_CHIP_SELECT_SIGNAL
#endif

#endif