/*
 * ili9341Driver.h
 *
 *  Created on: 10.08.2021 @ 17:53:57
 *      Author: $[AUTHOR]
 *     License: None
 */

#ifndef ILI9341_ILI9341DRIVER_H_
#define ILI9341_ILI9341DRIVER_H_

#include <stm32f1xx.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint-gcc.h>
#include <string.h>
#include <math.h>
#include "../delay.h"
#include "../usart.h"

//Control Pins
#define DC_PIN	10	//LCD Register Write or Data Write Pin
#define CS_PIN	1	//LCD CS Pin. Used for SPI CS ILI9341 or CS for ILI9486
#define RST_PIN 0	//LCD Reset Pin
#define WR_PIN	11	//WR(Write BUS) Pin only used for parallel interface ILI9486
#define RD_PIN	12	//RD (Read BUS) Pin only used for parallel interface ILI9486

//For Parallel Interface
#define ILI_D0	0
#define ILI_D1	1
#define ILI_D2	2
#define ILI_D3	3
#define ILI_D4	4
#define ILI_D5	5
#define ILI_D6	6
#define ILI_D7	7

//Ports for Control Pins
#define DC_GPIO		GPIOB
#define CS_GPIO		GPIOB
#define RST_GPIO	GPIOB
#define WR_GPIO		GPIOB
#define RD_GPIO		GPIOB

//Macros for R/W Control
#define DC_DATA		DC_GPIO->BSRR  |= (1<<DC_PIN)			//Set DC to High
#define DC_COMMAND	DC_GPIO->BSRR  |= (1<<(DC_PIN + 16))	//Set DC to Low
#define CS_ACTIVE	CS_GPIO->BSRR  |= (1<<(CS_PIN + 16))	//Set CS to Low
#define CS_IDLE		CS_GPIO->BSRR  |= (1<<CS_PIN)			//Set CS to HIGH
#define RST_IDLE	RST_GPIO->BSRR |= (1<<RST_PIN)			//Set RST to HIGH
#define RST_ACTIVE	RST_GPIO->BSRR |= (1<<(RST_PIN + 16))	//Set RST to Low
#define WR_ACTIVE	WR_GPIO->BSRR  |= (1<<(WR_PIN + 16))	//Set WR to Low
#define WR_IDLE		WR_GPIO->BSRR  |= (1<<WR_PIN)			//Set WR to HIGH
#define RD_ACTIVE 	RD_GPIO->BSRR  |= (1<<(RD_PIN + 16))	//Set RD to Low
#define RD_IDLE		RD_GPIO->BSRR  |= (1<<RD_PIN)			//Set RD to High

#define DX_HIGH(port, pin) port->ODR |= (1<<pin)
#define DX_LOW(port, pin)  port->ODR &= ~(1<<pin)

//Width, Height of Display
#define ILI9341_TFTHEIGHT	320//240
#define ILI9341_TFTWIDTH	480//320

//16 Bit Display Colors
#define BLACK       0x0000
#define NAVY        0x000F
#define DARKGREEN   0x03E0
#define DARKCYAN    0x03EF
#define MAROON      0x7800
#define PURPLE      0x780F
#define OLIVE       0x7BE0
#define LIGHTGREY   0xC618
#define DARKGREY    0x7BEF
#define BLUE        0x001F
#define GREEN       0x07E0
#define CYAN        0x07FF
#define RED         0xF800
#define MAGENTA     0xF81F
#define YELLOW      0xFFE0
#define WHITE       0xFFFF
#define ORANGE      0xFD20
#define GREENYELLOW 0xAFE5
#define PINK_ILI    0xF81F
#define GRAY        0x8410

#define swap(a, b) { int16_t t = a; a = b; b = t; }

//Core Functions
void ili9341_init(void);
void ili9341_initGPIOs(void);
void ili9341_send8Bit(uint8_t data);
void ili9341_send16Bit(uint16_t data);

void ili9341_setAddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
void ili9341_pushColor(uint16_t color);
void ili9341_clear(uint16_t color);
void ili9341_setRotation(uint8_t rot);

//Fill Functions
void ili9341_fillrect(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ili9341_fillCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color);
void ili9341_fillTriangle(int16_t x0,int16_t y0,int16_t x1,int16_t y1,int16_t x2,int16_t y2, uint16_t c);

//Draw Functions
void ili9341_drawpixel(uint16_t x, uint16_t y, uint16_t colour);
void ili9341_drawVline(uint16_t x, uint16_t y, uint16_t h, uint16_t colour);
void ili9341_drawHline(uint16_t x, uint16_t y, uint16_t w, uint16_t colour);
void ili9341_drawCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color);
void ili9341_drawRect(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color);
void ili9341_drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);

//Helpers
void ili9341_fillCircleHelper(uint16_t x, uint16_t y, uint16_t r, uint8_t cornername, uint16_t delta, uint16_t color);

//Special Functions
uint16_t ili9341_drawAnalougeMeter(uint16_t value, uint16_t minValue, uint16_t maxValue, uint16_t positionX, uint16_t positionY, uint8_t meterRadius, char *displayName, uint16_t colorScheme, bool directColor, uint8_t ringFactor);
long map(long x, long in_min, long in_max, long out_min, long out_max);
uint32_t rainbow(uint8_t value);

#endif /* ILI9341_ILI9341DRIVER_H_ */