kopia lustrzana https://github.com/Xinyuan-LilyGO/TTGO-T-Display
237 wiersze
8.3 KiB
C
237 wiersze
8.3 KiB
C
//////////////////////////////////////////////////////
|
|
// TFT_eSPI driver functions for ESP8266 processors //
|
|
//////////////////////////////////////////////////////
|
|
|
|
#ifndef _TFT_eSPI_ESP8266H_
|
|
#define _TFT_eSPI_ESP8266H_
|
|
|
|
// Processor ID reported by getSetup()
|
|
#define PROCESSOR_ID 0x8266
|
|
|
|
// Include processor specific header
|
|
// None
|
|
|
|
// Processor specific code used by SPI bus transaction startWrite and endWrite functions
|
|
#define SET_BUS_WRITE_MODE SPI1U=SPI1U_WRITE
|
|
#define SET_BUS_READ_MODE SPI1U=SPI1U_READ
|
|
|
|
// Code to check if DMA is busy, used by SPI bus transaction transaction and endWrite functions
|
|
#define DMA_BUSY_CHECK // DMA not available, leave blank
|
|
|
|
// Initialise processor specific SPI functions, used by init()
|
|
#if (!defined (SUPPORT_TRANSACTIONS) && defined (ESP8266))
|
|
#define INIT_TFT_DATA_BUS \
|
|
spi.setBitOrder(MSBFIRST); \
|
|
spi.setDataMode(TFT_SPI_MODE); \
|
|
spi.setFrequency(SPI_FREQUENCY);
|
|
#else
|
|
#define INIT_TFT_DATA_BUS
|
|
#endif
|
|
|
|
// If smooth fonts are enabled the filing system may need to be loaded
|
|
#ifdef SMOOTH_FONT
|
|
// Call up the SPIFFS FLASH filing system for the anti-aliased fonts
|
|
#define FS_NO_GLOBALS
|
|
#include <FS.h>
|
|
#define FONT_FS_AVAILABLE
|
|
#endif
|
|
|
|
// Do not allow parallel mode for ESP8266
|
|
#ifdef ESP32_PARALLEL
|
|
#undef ESP32_PARALLEL
|
|
#endif
|
|
#ifdef TFT_PARALLEL_8_BIT
|
|
#undef TFT_PARALLEL_8_BIT
|
|
#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
|
|
#if (TFT_DC == 16)
|
|
#define DC_C digitalWrite(TFT_DC, LOW)
|
|
#define DC_D digitalWrite(TFT_DC, HIGH)
|
|
#else
|
|
#define DC_C GPOC=dcpinmask
|
|
#define DC_D GPOS=dcpinmask
|
|
#endif
|
|
#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
|
|
#if (TFT_CS == 16)
|
|
#define CS_L digitalWrite(TFT_CS, LOW)
|
|
#define CS_H digitalWrite(TFT_CS, HIGH)
|
|
#else
|
|
#define CS_L GPOC=cspinmask
|
|
#define CS_H GPOS=cspinmask
|
|
#endif
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the WR (TFT Write) pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifdef TFT_WR
|
|
#define WR_L GPOC=wrpinmask
|
|
#define WR_H GPOS=wrpinmask
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Define the touch screen chip select pin drive code
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifndef TOUCH_CS
|
|
#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
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// ESP8266 specific SPI macros
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (TFT_SPI_OVERLAP)
|
|
#undef TFT_CS
|
|
#define SPI1U_WRITE (SPIUMOSI | SPIUSSE | SPIUCSSETUP | SPIUCSHOLD)
|
|
#define SPI1U_READ (SPIUMOSI | SPIUSSE | SPIUCSSETUP | SPIUCSHOLD | SPIUDUPLEX)
|
|
#else
|
|
#define SPI1U_WRITE (SPIUMOSI | SPIUSSE)
|
|
#define SPI1U_READ (SPIUMOSI | SPIUSSE | SPIUDUPLEX)
|
|
#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.write32(C)
|
|
|
|
// Write two address coordinates
|
|
#define tft_Write_32C(C,D) spi.write32((C)<<16 | (D))
|
|
|
|
// Write same value twice
|
|
#define tft_Write_32D(C) spi.write32((C)<<16 | (C))
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros to write commands/pixel colour data to an Raspberry Pi TFT
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#elif defined (RPI_DISPLAY_TYPE)
|
|
// Command is 16 bits
|
|
#define CMD_BITS 16
|
|
|
|
// ESP8266 low level SPI writes for 8, 16 and 32 bit values
|
|
// to avoid the function call overhead
|
|
#define TFT_WRITE_BITS(D, B) \
|
|
SPI1U1 = ((B-1) << SPILMOSI); \
|
|
SPI1W0 = D; \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {}
|
|
|
|
#define tft_Write_8(C) TFT_WRITE_BITS((uint16_t)(C)<<8, CMD_BITS)
|
|
|
|
#define tft_Write_16(C) TFT_WRITE_BITS((C)>>8 | (C)<<8, 16)
|
|
|
|
#define tft_Write_16S(C) TFT_WRITE_BITS(C, 16)
|
|
|
|
#define tft_Write_32(C) TFT_WRITE_BITS(C, 32)
|
|
|
|
#define tft_Write_32C(C,D) SPI1U1 = ((64-1) << SPILMOSI); \
|
|
SPI1W0 = ((C)<<24) | (C); \
|
|
SPI1W1 = ((D)<<24) | (D); \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_32D(C) tft_Write_32C(C,C)
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros for all other SPI displays
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#else
|
|
// Command is 8 bits
|
|
#define CMD_BITS 8
|
|
|
|
#define tft_Write_8(C) \
|
|
SPI1U1 = ((CMD_BITS-1) << SPILMOSI) | ((CMD_BITS-1) << SPILMISO); \
|
|
SPI1W0 = (C)<<(CMD_BITS - 8); \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_16(C) \
|
|
SPI1U1 = (15 << SPILMOSI) | (15 << SPILMISO); \
|
|
SPI1W0 = ((C)<<8 | (C)>>8); \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_16S(C) \
|
|
SPI1U1 = (15 << SPILMOSI) | (15 << SPILMISO); \
|
|
SPI1W0 = C; \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_32(C) \
|
|
SPI1U1 = (31 << SPILMOSI) | (31 << SPILMISO); \
|
|
SPI1W0 = C; \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_32C(C,D) \
|
|
SPI1U1 = (31 << SPILMOSI) | (31 << SPILMISO); \
|
|
SPI1W0 = ((D)>>8 | (D)<<8)<<16 | ((C)>>8 | (C)<<8); \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#define tft_Write_32D(C) \
|
|
SPI1U1 = (31 << SPILMOSI) | (31 << SPILMISO); \
|
|
SPI1W0 = ((C)>>8 | (C)<<8)<<16 | ((C)>>8 | (C)<<8); \
|
|
SPI1CMD |= SPIBUSY; \
|
|
while(SPI1CMD & SPIBUSY) {;}
|
|
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Macros to read from display using SPI or software SPI
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (TFT_SDA_READ)
|
|
// Use a bit banged function call for ESP8266 and bi-directional SDA pin
|
|
#define TFT_eSPI_ENABLE_8_BIT_READ // Enable tft_Read_8(void);
|
|
#define SCLK_L GPOC=sclkpinmask
|
|
#define SCLK_H GPOS=sclkpinmask
|
|
#else
|
|
// Use a SPI read transfer
|
|
#define tft_Read_8() spi.transfer(0)
|
|
#endif
|
|
|
|
// Concatenate a byte sequence A,B,C,D to CDAB, P is a uint8_t pointer
|
|
#define DAT8TO32(P) ( (uint32_t)P[0]<<8 | P[1] | P[2]<<24 | P[3]<<16 )
|
|
|
|
#endif // Header end
|