/*
*
* HIGH SPEED LOW LEVEL DISPLAY FUNCTIONS USING DIRECT TRANSFER MODE
*
*/
#ifndef _TFTSPI_H_
#define _TFTSPI_H_
#include "tftspi.h"
#include "lobo_spi.h"
#include "sdkconfig.h"
// === Screen orientation constants ===
#define PORTRAIT 0
#define LANDSCAPE 1
#define PORTRAIT_FLIP 2
#define LANDSCAPE_FLIP 3
// ** Set the correct configuration for Adafruit TFT Feather
// ---------------------------------------------------------
#define DEFAULT_TFT_DISPLAY_WIDTH 240
#define DEFAULT_TFT_DISPLAY_HEIGHT 320
#define DISP_COLOR_BITS_24 0x66
#define DEFAULT_GAMMA_CURVE 0
#define DEFAULT_SPI_CLOCK 26000000
#define TFT_RGB_BGR 0x08
// ---------------------------------------------------------
// ##############################################################
// #### Global variables ####
// ##############################################################
// ==== Spi clock for reading data from display memory in Hz ====
extern uint32_t max_rdclock;
// ==== Display dimensions in pixels ============================
extern int _width;
extern int _height;
// ==== Spi device handles for display and touch screen =========
extern spi_lobo_device_handle_t disp_spi;
// ##############################################################
// 24-bit color type structure
typedef struct __attribute__((__packed__)) {
//typedef struct {
uint8_t r;
uint8_t g;
uint8_t b;
} color_t ;
// ==== Display commands constants ====
#define TFT_INVOFF 0x20
#define TFT_INVONN 0x21
#define TFT_DISPOFF 0x28
#define TFT_DISPON 0x29
#define TFT_MADCTL 0x36
#define TFT_PTLAR 0x30
#define TFT_ENTRYM 0xB7
#define TFT_CMD_NOP 0x00
#define TFT_CMD_SWRESET 0x01
#define TFT_CMD_RDDID 0x04
#define TFT_CMD_RDDST 0x09
#define TFT_CMD_SLPIN 0x10
#define TFT_CMD_SLPOUT 0x11
#define TFT_CMD_PTLON 0x12
#define TFT_CMD_NORON 0x13
#define TFT_CMD_RDMODE 0x0A
#define TFT_CMD_RDMADCTL 0x0B
#define TFT_CMD_RDPIXFMT 0x0C
#define TFT_CMD_RDIMGFMT 0x0D
#define TFT_CMD_RDSELFDIAG 0x0F
#define TFT_CMD_GAMMASET 0x26
#define TFT_CMD_FRMCTR1 0xB1
#define TFT_CMD_FRMCTR2 0xB2
#define TFT_CMD_FRMCTR3 0xB3
#define TFT_CMD_INVCTR 0xB4
#define TFT_CMD_DFUNCTR 0xB6
#define TFT_CMD_PWCTR1 0xC0
#define TFT_CMD_PWCTR2 0xC1
#define TFT_CMD_PWCTR3 0xC2
#define TFT_CMD_PWCTR4 0xC3
#define TFT_CMD_PWCTR5 0xC4
#define TFT_CMD_VMCTR1 0xC5
#define TFT_CMD_VMCTR2 0xC7
#define TFT_CMD_RDID1 0xDA
#define TFT_CMD_RDID2 0xDB
#define TFT_CMD_RDID3 0xDC
#define TFT_CMD_RDID4 0xDD
#define TFT_CMD_GMCTRP1 0xE0
#define TFT_CMD_GMCTRN1 0xE1
#define TFT_CMD_POWERA 0xCB
#define TFT_CMD_POWERB 0xCF
#define TFT_CMD_POWER_SEQ 0xED
#define TFT_CMD_DTCA 0xE8
#define TFT_CMD_DTCB 0xEA
#define TFT_CMD_PRC 0xF7
#define TFT_CMD_3GAMMA_EN 0xF2
#define ST_CMD_VCOMS 0xBB
#define ST_CMD_FRCTRL2 0xC6
#define ST_CMD_PWCTR1 0xD0
#define MADCTL_MY 0x80
#define MADCTL_MX 0x40
#define MADCTL_MV 0x20
#define MADCTL_ML 0x10
#define MADCTL_MH 0x04
#define TFT_CASET 0x2A
#define TFT_PASET 0x2B
#define TFT_RAMWR 0x2C
#define TFT_RAMRD 0x2E
#define TFT_CMD_PIXFMT 0x3A
#define TFT_CMD_DELAY 0x80
// Initialization sequence for ILI7341
// ====================================
static const uint8_t ILI9341_init[] = {
24, // 24 commands in list
TFT_CMD_SWRESET, TFT_CMD_DELAY, // 1: Software reset, no args, w/delay
250, // 200 ms delay
TFT_CMD_POWERA, 5, 0x39, 0x2C, 0x00, 0x34, 0x02,
TFT_CMD_POWERB, 3, 0x00, 0XC1, 0X30,
0xEF, 3, 0x03, 0x80, 0x02,
TFT_CMD_DTCA, 3, 0x85, 0x00, 0x78,
TFT_CMD_DTCB, 2, 0x00, 0x00,
TFT_CMD_POWER_SEQ, 4, 0x64, 0x03, 0X12, 0X81,
TFT_CMD_PRC, 1, 0x20,
TFT_CMD_PWCTR1, 1, 0x23, //Power control VRH[5:0]
TFT_CMD_PWCTR2, 1, 0x10, //Power control SAP[2:0];BT[3:0]
TFT_CMD_VMCTR1, 2, 0x3e, 0x28, //VCM control
TFT_CMD_VMCTR2, 1, 0x86, //VCM control2
TFT_MADCTL, 1, // Memory Access Control (orientation)
(MADCTL_MX | TFT_RGB_BGR),
// *** INTERFACE PIXEL FORMAT: 0x66 -> 18 bit; 0x55 -> 16 bit
TFT_CMD_PIXFMT, 1, DISP_COLOR_BITS_24,
TFT_INVOFF, 0,
TFT_CMD_FRMCTR1, 2, 0x00, 0x18,
TFT_CMD_DFUNCTR, 4, 0x08, 0x82, 0x27, 0x00, // Display Function Control
TFT_PTLAR, 4, 0x00, 0x00, 0x01, 0x3F,
TFT_CMD_3GAMMA_EN, 1, 0x00, // 3Gamma Function: Disable (0x02), Enable (0x03)
TFT_CMD_GAMMASET, 1, 0x01, //Gamma curve selected (0x01, 0x02, 0x04, 0x08)
TFT_CMD_GMCTRP1, 15, //Positive Gamma Correction
0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00,
TFT_CMD_GMCTRN1, 15, //Negative Gamma Correction
0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F,
TFT_CMD_SLPOUT, TFT_CMD_DELAY, // Sleep out
200, // 120 ms delay
TFT_DISPON, TFT_CMD_DELAY, 200,
};
// ==== Public functions =========================================================
// == Low level functions; usually not used directly ==
esp_err_t wait_trans_finish(uint8_t free_line);
void disp_spi_transfer_cmd(int8_t cmd);
void disp_spi_transfer_cmd_data(int8_t cmd, uint8_t *data, uint32_t len);
void drawPixel(int16_t x, int16_t y, color_t color, uint8_t sel);
void send_data(int x1, int y1, int x2, int y2, uint32_t len, color_t *buf);
void mgos_ili9341_pushColorRep(int x1, int y1, int x2, int y2, color_t data, uint32_t len);
int read_data(int x1, int y1, int x2, int y2, int len, uint8_t *buf, uint8_t set_sp);
color_t readPixel(int16_t x, int16_t y);
int touch_get_data(uint8_t type);
// Deactivate display's CS line
//========================
esp_err_t disp_deselect();
// Activate display's CS line and configure SPI interface if necessary
//======================
esp_err_t disp_select();
// Find maximum spi clock for successful read from display RAM
// ** Must be used AFTER the display is initialized **
//======================
uint32_t find_rd_speed();
// Change the screen rotation.
// Input: m new rotation value (0 to 3)
//=================================
void _tft_setRotation(uint8_t rot);
// Perform display initialization sequence
// Sets orientation to landscape; clears the screen
// * All pins must be configured
// * SPI interface must already be setup
//======================
void mgos_ili9341_display_init();
// ===============================================================================
#endif