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/*!
* @file DFRobot_OSD.h
* @brief Define infrastructure of DFRobot_OSD class
* @details This is a Library for OSD,the function is the superposition of characters.
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [Luyuhao](yuhao.lu@dfrobot.com)
* @maintainer [qsjhyy](yihuan.huang@dfrobot.com)
* @version V1.0
* @date 2022-05-19
* @url https://github.com/DFRobot/DFRobot_OSD
*/
#ifndef _DFRobot_OSD_H_
#define _DFRobot_OSD_H_
#include <Arduino.h>
// #define ENABLE_DBG //!< Open this macro and you can see the details of the program
#ifdef ENABLE_DBG
#define DBG(...) {Serial.print("[");Serial.print(__FUNCTION__); Serial.print("(): "); Serial.print(__LINE__); Serial.print(" ] "); Serial.println(__VA_ARGS__);}
#else
#define DBG(...)
#endif
/* at7456 */
#define VM0 0x00 ///< Video Mode0
#define VM1 0x01 ///< Video Mode1
#define HOS 0x02 ///< Horizontal Offset
#define VOS 0x03 ///< Vertical Offset
#define DMM 0x04 ///< Display Memory Mode
#define DMAH 0x05 ///< Display Memory Address High
#define DMAL 0x06 ///< Display Memory Address Low
#define DMDI 0x07 ///< Display Memory Data In
#define CMM 0x08 ///< Character Memory Mode
#define CMAH 0x09 ///< Character Memory Address High
#define CMAL 0x0a ///< Character Memory Address Low
#define CMDI 0x0b ///< Character Memory Data In
#define OSDM 0x0c ///< OSD Insertion Mux
#define RB0 0x10 ///< Row 0 Brightness
#define RB1 0x11 ///< Row 1 Brightness
#define RB2 0x12 ///< Row 2 Brightness
#define RB3 0x13 ///< Row 3 Brightness
#define RB4 0x14 ///< Row 4 Brightness
#define RB5 0x15 ///< Row 5 Brightness
#define RB6 0x16 ///< Row 6 Brightness
#define RB7 0x17 ///< Row 7 Brightness
#define RB8 0x18 ///< Row 8 Brightness
#define RB9 0x19 ///< Row 9 Brightness
#define RB10 0x1a ///< Row 10 Brightness
#define RB11 0x1b ///< Row 11 Brightness
#define RB12 0x1c ///< Row 12 Brightness
#define RB13 0x1d ///< Row 13 Brightness
#define RB14 0x1e ///< Row 14 Brightness
#define RB15 0x1f ///< Row 15 Brightness
#define OSDBL 0x6c ///< OSD Black Level
#define STAT 0x20 ///< Status
#define DMDO 0x30 ///< Display Memory Data Out
#define CMDO 0x40 ///< Character Memory Data Out
#define NVM_RAM 0x50 ///< Read the fonts in the NVM into the mirror RAM
#define RAM_NVM 0xa0 ///< Write the database data in the mirror RAM to the NVM
/* VM0 */
#define NTSC (0 << 6) ///< D6 --- Vidoe Standard Select
#define PAL (1 << 6)
#define SYNC_AUTO (0 << 4) ///< D5,D4 --- Sync Select Mode
#define SYNC_EXTERNAL (2 << 4)
#define SYNC_INTERNAL (3 << 4)
#define OSD_ENABLE (1 << 3) ///< D3 --- Enable Display of OSD image
#define OSD_DISABLE (0 << 3)
#define SOFT_RESET (1 << 1) ///< D1 --- Software Reset
#define VOUT_ENABLE (0 << 0)
#define VOUT_DISABLE (1 << 0)
/* VM1 */
#define BACKGND_0 (0 << 4) ///< Background level WHT%
#define BACKGND_7 (1 << 4)
#define BACKGND_14 (2 << 4)
#define BACKGND_21 (3 << 4)
#define BACKGND_28 (4 << 4)
#define BACKGND_35 (5 << 4)
#define BACKGND_42 (6 << 4)
#define BACKGND_49 (7 << 4)
#define BLINK_TIME40 (0 << 2) ///< Blink cycle, ms
#define BLINK_TIME80 (1 << 2)
#define BLINK_TIME120 (2 << 2)
#define BLINK_TIME160 (3 << 2) ///< Scintillation ratio(ON : OFF)
#define BLINK_DUTY_1_1 0 ///< BT : BT
#define BLINK_DUTY_1_2 1 ///< BT : 2BT
#define BLINK_DUTY_1_3 2 ///< BT : 3BT
#define BLINK_DUTY_3_1 3 ///< 3BT : BT // DMM
#define SPI_BIT16 (0 << 6) ///< use 16bit When writing characters, and the character attribute is from the DMM[5:3]
#define SPI_BIT8 (1 << 6) ///< Write characters in 8bit, and character attributes are written separately
#define CHAR_LBC (1 << 5) ///< The local background
#define CHAR_BLK (1 << 4) ///< blinking display
#define CHAR_INV (1 << 3) ///< display negative image
#define CLEAR_SRAM (1 << 2) ///< clear，20us
#define VETICAL_SYNC (1 << 1) ///< The command is in sync with the action
#define AUTO_INC (1 << 0) ///< The character address automatically increases
/* RBi */
#define BLACK_LEVEL_0 (0 << 2) ///< 0% white level
#define BLACK_LEVEL_10 (1 << 2) ///< 10% white level
#define BLACK_LEVEL_20 (2 << 2) ///< 20% white level
#define BLACK_LEVEL_30 (3 << 2) ///< 30% white level
#define WHITE_LEVEL_120 (0 << 0) ///< 120% white level
#define WHITE_LEVEL_100 (1 << 0) ///< 110% white level
#define WHITE_LEVEL_90 (2 << 0) ///< 90% white level
#define WHITE_LEVEL_80 (3 << 0) ///< 80% white level
/* STAT */
#define PAL_DETECT (1 << 0) ///< Check the PAL signal
#define NTSC_DETECT (1 << 1) ///< Check the NTSC signal
#define LOS_DETECT (1 << 2) ///< Check the LOS signal
#define VSYNC (1 << 4) ///< synchronous
/**
* @struct AsciiAddr
* @brief Ascii corresponding address struct
*/
typedef struct
{
char ascii;
short addr;
}AsciiAddr;
const AsciiAddr tAsciiAddr[]={
{' ',0x00},
{'(',0x3f},
{')',0x40},
{'.',0x41},
{'?',0x42},
{';',0x43},
{':',0x44},
{',',0x45},
{'\'',0x46},
{'/',0x47},
{'"',0x48},
{'-',0x49},
{'<',0x4a},
{'>',0x4b},
{'@',0x4c},
{'!',0x121},
{'#',0x123},
{'$',0x124},
{'%',0x125},
{'&',0x126},
{'(',0x128},
{')',0x129},
{'*',0x12a},
{'+',0x12b},
{'_',0x12d},
{'=',0x13d},
{'[',0x15b},
{']',0x15d},
{'^',0x15e},
{'`',0x160},
{'{',0x17b},
{'|',0x17c},
{'}',0x17d},
{'~',0x17e},
};
class DFRobot_OSD
{
public:
/**
* @fn DFRobot_OSD
* @brief Constructor
* @param CS - CS selection pin
* @return None
*/
DFRobot_OSD(int CS);
~DFRobot_OSD();
/**
* @fn init
* @brief Init function
* @return None
*/
void init();
/**
* @fn displayChar
* @brief display char
* @param row - Horizontal coordinate, range(0,15)
* @param col - Vertical coordinate, range(0,29)
* @param value - addr of char in eeprom
* @return None
*/
void displayChar(unsigned char row, unsigned char col, unsigned short addr);
/**
* @fn displayChar
* @brief display string
* @param row - Horizontal coordinate, range(0,15)
* @param col - Vertical coordinate, range(0,29)
* @param s - String
* @return None
*/
void displayString(unsigned char row, unsigned char col, const char *s);
void displayString(unsigned char row, unsigned char col, String s);
/**
* @fn clear
* @brief Clear screen
* @return None
*/
void clear(void);
/**
* @fn storeChar
* @brief Write the custom character to the OSD, replacing the original character
* @param addr - Address of the stored character
* @param dt - Array generated through the tool
* @return None
*/
void storeChar(unsigned short addr,int dt[]);
private:
void writeAddrData(unsigned char addr, unsigned char dat);
void writeAT7456E(unsigned short addr, int *dt);
void writeData(unsigned char dat);
int * extend(int src);
int unified(int src);
private:
int nCS;
};
#endif
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