kopia lustrzana https://github.com/Xinyuan-LilyGO/TTGO-T-Display
166 wiersze
6.5 KiB
C
166 wiersze
6.5 KiB
C
////////////////////////////////////////////////////
|
|
// TFT_eSPI generic driver functions //
|
|
////////////////////////////////////////////////////
|
|
|
|
// This is a generic driver for Arduino boards, it supports SPI interface displays
|
|
// 8 bit parallel interface to TFT is not supported for generic processors
|
|
|
|
#ifndef _TFT_eSPI_GENERICH_
|
|
#define _TFT_eSPI_GENERICH_
|
|
|
|
// Processor ID reported by getSetup()
|
|
#define PROCESSOR_ID 0x0000
|
|
|
|
// Include processor specific header
|
|
// None
|
|
|
|
// Processor specific code used by SPI bus transaction startWrite and endWrite functions
|
|
#define SET_BUS_WRITE_MODE // Not used
|
|
#define SET_BUS_READ_MODE // Not used
|
|
|
|
// Code to check if DMA is busy, used by SPI bus transaction startWrite and endWrite functions
|
|
#define DMA_BUSY_CHECK // Not used so leave blank
|
|
|
|
// To be safe, SUPPORT_TRANSACTIONS is assumed mandatory
|
|
#if !defined (SUPPORT_TRANSACTIONS)
|
|
#define SUPPORT_TRANSACTIONS
|
|
#endif
|
|
|
|
// Initialise processor specific SPI functions, used by init()
|
|
#define INIT_TFT_DATA_BUS
|
|
|
|
// If smooth fonts are enabled the filing system may need to be loaded
|
|
#ifdef SMOOTH_FONT
|
|
// Call up the filing system for the anti-aliased fonts
|
|
//#define FS_NO_GLOBALS
|
|
//#include <FS.h>
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the DC (TFT Data/Command or Register Select (RS))pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifndef TFT_DC
|
|
#define DC_C // No macro allocated so it generates no code
|
|
#define DC_D // No macro allocated so it generates no code
|
|
#else
|
|
#define DC_C digitalWrite(TFT_DC, LOW)
|
|
#define DC_D digitalWrite(TFT_DC, HIGH)
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the CS (TFT chip select) pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifndef TFT_CS
|
|
#define CS_L // No macro allocated so it generates no code
|
|
#define CS_H // No macro allocated so it generates no code
|
|
#else
|
|
#define CS_L digitalWrite(TFT_CS, LOW)
|
|
#define CS_H digitalWrite(TFT_CS, HIGH)
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Make sure TFT_RD is defined if not used to avoid an error message
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifndef TFT_RD
|
|
#define TFT_RD -1
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the WR (TFT Write) pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifdef TFT_WR
|
|
#define WR_L digitalWrite(TFT_WR, LOW)
|
|
#define WR_H digitalWrite(TFT_WR, HIGH)
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the touch screen chip select pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if !defined TOUCH_CS || (TOUCH_CS < 0)
|
|
#define T_CS_L // No macro allocated so it generates no code
|
|
#define T_CS_H // No macro allocated so it generates no code
|
|
#else
|
|
#define T_CS_L digitalWrite(TOUCH_CS, LOW)
|
|
#define T_CS_H digitalWrite(TOUCH_CS, HIGH)
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Make sure TFT_MISO is defined if not used to avoid an error message
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifndef TFT_MISO
|
|
#define TFT_MISO -1
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros to write commands/pixel colour data to an ILI9488 TFT
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (ILI9488_DRIVER) // 16 bit colour converted to 3 bytes for 18 bit RGB
|
|
|
|
// Write 8 bits to TFT
|
|
#define tft_Write_8(C) spi.transfer(C)
|
|
|
|
// Convert 16 bit colour to 18 bit and write in 3 bytes
|
|
#define tft_Write_16(C) spi.transfer(((C) & 0xF800)>>8); \
|
|
spi.transfer(((C) & 0x07E0)>>3); \
|
|
spi.transfer(((C) & 0x001F)<<3)
|
|
|
|
// Convert swapped byte 16 bit colour to 18 bit and write in 3 bytes
|
|
#define tft_Write_16S(C) spi.transfer((C) & 0xF8); \
|
|
spi.transfer(((C) & 0xE000)>>11 | ((C) & 0x07)<<5); \
|
|
spi.transfer(((C) & 0x1F00)>>5)
|
|
// Write 32 bits to TFT
|
|
#define tft_Write_32(C) spi.transfer16((C)>>16); spi.transfer16((uint16_t)(C))
|
|
|
|
// Write two address coordinates
|
|
#define tft_Write_32C(C,D) spi.transfer16(C); spi.transfer16(D)
|
|
|
|
// Write same value twice
|
|
#define tft_Write_32D(C) spi.transfer16(C); spi.transfer16(C)
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros to write commands/pixel colour data to other displays
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#else
|
|
#if defined (RPI_DISPLAY_TYPE) // RPi TFT type always needs 16 bit transfers
|
|
#define tft_Write_8(C) spi.transfer(0); spi.transfer(C)
|
|
#else
|
|
#ifdef __AVR__ // AVR processors do not have 16 bit transfer
|
|
#define tft_Write_8(C) {SPDR=(C); while (!(SPSR&_BV(SPIF)));}
|
|
#define tft_Write_16(C) tft_Write_8((uint8_t)((C)>>8));tft_Write_8((uint8_t)((C)>>0))
|
|
#define tft_Write_16S(C) tft_Write_8((uint8_t)((C)>>0));tft_Write_8((uint8_t)((C)>>8))
|
|
#else
|
|
#define tft_Write_8(C) spi.transfer(C)
|
|
#define tft_Write_16(C) spi.transfer16(C)
|
|
#define tft_Write_16S(C) spi.transfer16(((C)>>8) | ((C)<<8))
|
|
#endif // AVR
|
|
#endif // RPI_DISPLAY_TYPE
|
|
|
|
#define tft_Write_32(C) \
|
|
tft_Write_16((uint16_t) ((C)>>16)); \
|
|
tft_Write_16((uint16_t) ((C)>>0))
|
|
|
|
#define tft_Write_32C(C,D) \
|
|
tft_Write_16((uint16_t) (C)); \
|
|
tft_Write_16((uint16_t) (D))
|
|
|
|
#define tft_Write_32D(C) \
|
|
tft_Write_16((uint16_t) (C)); \
|
|
tft_Write_16((uint16_t) (C))
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros to read from display using SPI or software SPI
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (TFT_SDA_READ)
|
|
// Use a bit banged function call for STM32 and bi-directional SDA pin
|
|
#define TFT_eSPI_ENABLE_8_BIT_READ // Enable tft_Read_8(void);
|
|
#define SCLK_L digitalWrite(TFT_SCLK, LOW)
|
|
#define SCLK_H digitalWrite(TFT_SCLK, LOW)
|
|
#else
|
|
// Use a SPI read transfer
|
|
#define tft_Read_8() spi.transfer(0)
|
|
#endif
|
|
|
|
|
|
#endif // Header end
|