/*
 * lcd.h
 *
 *  Created on: May 27, 2022
 *      Author: Keith.Lloyd
 */

#ifndef LCD_H_
#define LCD_H_

#define LCD_WIDTH_PIXELS	240
#define LCD_HEIGHT_PIXELS	128
#define LCD_X_CENTER		120
#define LCD_Y CENTER		64
#define LCD_X_MAX			239
#define LCD_Y_MAX			127
#define LCD_X_MID			120
#define LCD_Y_MID			64
#define	LCD_X_MIN			0
#define	LCD_Y_MIN			0

#define LCD_Y_BITS_PER_PAGE	8	//8 bits per page in Y direction (for draw and get pixel)

//UC1608 defines: These all require CONTROL MODE
//Some commands have the last few bits as arguments. These can be set with SendLcdCommand()
#define LCD_SET_COLUMN_LSB			0x00	// last 4 bits are data
#define LCD_SET_COLUMN_MSB			0x10	// last 4 bits are data
#define LCD_SET_MUX_AND_TC			0x24	// ## 21 last 2 bits are Temperature compensation curve
#define LCD_SET_POWER_CONTROL		0x28	// last 3 bits are data ## 2D
#define LCD_SET_START_LINE			0x40	// last 6 bits are data
#define LCD_SET_GAIN_AND_POT		0x81	// DOUBLE BYTE COMMAND! Send this, then 8 data bits
#define LCD_SET_RAM_ADDRESS_CTRL	0x88	//## 89 ? Last 3 bits are the control
#define LCD_SET_ALL_PIXELS			0xA4	//# Actually off A5 = On Set all pixels - last bit is on/off
#define LCD_SYSTEM_RESET			0xE2	// # must delay min 15mS after use
#define LCD_SET_DISPLAY_ENABLE		0xAE	// # last bit is arg (on/off)
#define LCD_SET_BIAS_RATIO			0xE8	// last 2 bits are data
#define LCD_SET_PAGE_ADDRESS		0xB0	//last 4 bits are data


typedef enum {
	LCD_DRAW_SET,
	LCD_DRAW_CLEAR,
	LCD_DRAW_XOR
}LCD_DRAWMODE_t;


//UM1608 Data / Control line
typedef enum {
	LCD_CDLINE_CONTROL = 0,
	LCD_CDLINE_DATA = 1
}LCD_CDLINE_t;


void LCD_Init(void);
void Display_Update(void);
void LCD_Update(void);
void LCD_Clear(void);
void LCD_DrawPixel(int16_t x, int16_t y, LCD_DRAWMODE_t mode);
uint8_t LCD_GetPixel(int16_t x0, int16_t y0);






#if 0	//UC1608

#define UC1608_DATA		1
#define UC1608_CMD    0

int uc1608_send(struct spi_config *config,unsigned char *data, int len,uint8_t mode,uint8_t cmdPin);
void uc1608_setup(struct spi_config *config,uint8_t cmdPin);

#endif

#endif /* LCD_H_ */