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📄 tft_hd66773.c

📁 LCD驱动代码
💻 C
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										/* 0: once, 1:twice*/
	0,		//uint8	cyclenum_senddata;	/*operation cycle to send data */
										/* 0; once, 1:twice*/
	1,		//uint8	cmd_num_setupwin;	/*command number to settint up widnow space*/
										/*0: 4 commands for setting up window space: x-start, x-end, y-start, y-end*/
										/*1: 2 commands for setting up window space: x-address, y-address*/
										/*2: 1 commanns for setting up window space window address*/
										/*3: no commands for setting up window space*/
	1,		//uint8	method_send_cmdaddr;/*how to send command & address*/
										/*0: sending together, 1:sending separately*/
	1,		//uint8	ads_is_high;		/*status of ADS when sending parameter*/
										/*0: low, 1: high*/
	0,		//uint8	sequence_cmdaddr;	/*the sequence of command & address, if not send command & address together as 16 bits*/
										/*0: write 2 window area on a 16bit bus, Hitachi*/
										/*1, write 1 sindow area with one command, Casio*/
										/*2, write 1 command and 2 parameters separately, Samsung*/
										/*3, reserved*/
										/*4, write 1 command, 2 parameters for page, 4 parameters for column, Epson*/
										/*5, write 1 command, 4 parameters for page, 2 parameters for column*/
										/*6, write 1 command, write 4 parameters for each page/column*/
	4,		//uint8	cyclenum_setupwin;	/*operation cycle to set up window*/
	1,		//uint8	method_gram_access;	/*select method to begin actul data read/write address for selected window area in GRAM*/
										/*0: without any assigning x/y address, use initial start address of window*/
										/*1: assign 1 x/y set command and parameter onto 16bit bus at onece*/
										/*2: use separate for X and Y, with upper byte consists of command and lower byte for parameter*/
										/*3, 1 command for selecting X/Y adn 2 parameters, us command and parameter separately*/
										/*4, set different command for x and y, and command and parameter differs*/
	1,		//uint8	sequence_gram_access;/*read/write command and sequence for GRAM*/
										/*0: perform read/write without seperate read/write command but by strobe 'high' ADS(RS)pin, samsung*/
										/*1: data cycle comes right afer read/write command, Toshiba/Matsushita/Hitachi/NEC*/
										/*2: after read/write command follows start address parameter for X and Y and follows data cycle, Casio*/
										/*3: similiar to 2 but sends X and Y parameters together on 16 bit BUS*/
	0,		//uint8	order_xy;			/*order of x and y address, I think, this field is active when sequence_gram_access = 2*/
										/*0: X first*/
										/*1: Y first*/
	1,		//uint8	is_dummy_read;		/*deciding first read data when reading GRAM*/
										/*0: acknowledge first data as valid data*/
										/*1: acknowledge first data as dummy data*/
	3,		//uint8	cyclenum_read;		/*total cycle numbers needed to access GRAM read/write*/
	0x16,	//uint8	win_setstartx_cmd;	/*window x start address set command*/
	0x00,	//uint8	win_setendx_cmd;	/*window x end address set command*/
	0x17,	//uint8	win_setstarty_cmd;	/*window y start address set command*/
	0x00,	//uint8	win_setendy_cmd;	/*window y end address set command*/
	0x21,	//uint8	gram_setx_cmd;		/*gram x address set command*/
	0x00,	//uint8	gram_sety_cmd;		/*gram y address set command*/
	0x22,	//uint8	gram_read_cmd;		/*gram read command*/
	0x22,	//uint8	gram_write_cmd;		/*gram write command*/
	//@zhemin.lin, add 1 line, CR9590
	0x00,	//uint8	line_offset;		/*line offset for display on lcd*/
	0x00	//uint8 colum_offset        /*columoffset for display on lcd*/
};


/******************************************************************************/
//  Description:    get the important parameter for digital camera
//	Global resource dependence: 
//  Author:         Zhemin.lin
//	Note:           
/******************************************************************************/
LOCAL ERR_LCD_E  HD66773_GetMainLcdSpec(
	LCD_SPEC_T *spec_ptr 	//spec struct pointer
	)
{
	if (spec_ptr == PNULL)
	{
		return 1;
	}
	
	memcpy(spec_ptr, &g_HD66773_spec, sizeof(LCD_SPEC_T));
	
	return ERR_LCD_NONE;
}

/******************************************************************************/
//  Description:   Enter/Exit sleep mode .
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
LOCAL ERR_LCD_E  HD66773_EnterSleep(
	BOOLEAN is_sleep 	//SCI_TRUE: exter sleep mode;SCI_FALSE:exit sleep mode.
	)
{
	SCI_TRACE_LOW("HD66773_EnterSleep,%d", is_sleep);

	if ( is_sleep ) // enter sleep mode.
	{
		HD66773_GoSleep(); 
	}
	else 			// out sleep mode 
	{
		//HD66773_reset();
		HD66773_ExitSleep();
	}

	/*
	if( !GetUdiskState())
	DC_EnterSleep(is_sleep);
	*/
	return ERR_LCD_NONE;
	}


/*****************************************************************************/
//  Description:    Enable lcd to partial display mode, so can save power.
//	Global resource dependence: 
//  Author:         Jim.zhang
//  Return:         SCI_TRUE:SUCCESS ,SCI_FALSE:failed.
//	Note:           If all input parameters are 0, exit partial display mode.
/*****************************************************************************/
LOCAL ERR_LCD_E HD66773_SetDisplayWindow(
	uint16 left, 		//left of the window
	uint16 top,			//top of the window
	uint16 right,		//right of the window
	uint16 bottom		//bottom of the window
	)
{
	HD66773_set_display_window(left, top, right, bottom);

	HD66773_sendcommand1(0x0021, OFFSET_X);		//@David.Jia 2005.12.26

	HD66773_SEND_COMMAND(0x0022); 				//@David.Jia 2005.12.26

	return ERR_LCD_NONE;
}

/*********************************************************************/
//  Description:   Initialize color LCD : HD66773
//  Input:
//      None.
//  Author:         yinchun.li
//  Return:
//      None.
//	Note:
//  modify:  jim.cui  2005.0728 add dma init  
/*********************************************************************/
LOCAL ERR_LCD_E HD66773_Init(void)
{
	
	//dma init
	dma_init ();
	
	//HD66773_HW_reset();
	HD66773_reset();
	
	HD66773_Clear( 0xf25f );
	
	return ERR_LCD_NONE;
}


/******************************************************************************/
//  Description:  set the contrast value 
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
LOCAL ERR_LCD_E   HD66773_SetContrast(
	uint16  contrast	//contrast value to set
	)
{
	return ERR_LCD_FUNC_NOT_SUPPORT;
} 


/*****************************************************************************/
//  Description:    Set the brightness of LCD.
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/*****************************************************************************/
LOCAL ERR_LCD_E   HD66773_SetBrightness(
	uint16 brightness	//birghtness to set
	)
{
	return ERR_LCD_FUNC_NOT_SUPPORT;
}

/******************************************************************************/
//  Description:   Close the lcd.(include sub lcd.)
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
LOCAL void HD66773_Close()
{
    GPIO_SetLcdBackLight( SCI_FALSE );
    HD66773_EnterSleep( SCI_TRUE );	
}


LOCAL LCD_OPERATIONS_T HD66773_operations = 
{
	HD66773_Init,
	HD66773_EnterSleep,
	HD66773_SetContrast,
	HD66773_SetBrightness,
	HD66773_SetDisplayWindow,
	HD66773_GetInfo,
	HD66773_InvalidateRect,
	HD66773_InvalidateRectImage,
	HD66773_Invalidate,
	HD66773_Clear,
	HD66773_Close,
	HD66773_GetMainLcdSpec
};

/******************************************************************************/
//  Description:  return the HD66773 lcd driver funtion pointer
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
PUBLIC LCD_OPERATIONS_T* HD66773_GetOperations()
{
	return &HD66773_operations;
}

#define ADC_NUM 10
PUBLIC BOOLEAN HD66773_Probe(void)
{
	return SCI_TRUE;
}


LOCAL HD66773_GoSleep(void)
{
	HD66773_sendcommand1(0x0007,0x0136);   //GON=1,DTE=1,D1-0=10
	Delayms(30);
	HD66773_sendcommand1(0x0007,0x0126);   //GON=1,DTE=0,D1-0=10
	Delayms(30);
	HD66773_sendcommand1(0x0007,0x0104);   //GON=0,DTE=0,D1-0=00
	HD66773_sendcommand1(0x0003,0x0000);   //AP2-0=000
	HD66773_sendcommand1(0x000D,0x0000);   //pon off
	HD66773_sendcommand1(0x0003,0x0002);   //SLP ON
}

LOCAL HD66773_ExitSleep(void)
{
	//HD66773_reset();
#if 1
	//power setting 1
	//HD66773_sendcommand1(0x0000,0x0001);
	//Delayms(20);   //delay
	//HD66773_sendcommand1(0x0003,0x0008);
	//Delayms(2);
	HD66773_sendcommand1(0x000C,0x0000);
	HD66773_sendcommand1(0x000D,0x0202);
	Delayms(2);
	HD66773_sendcommand1(0x000E,0x1019);
	Delayms(2);
	HD66773_sendcommand1(0x0003,0x000C);
	Delayms(10);   //delay
	//power setting 2
	HD66773_sendcommand1(0x000E,0x2C19);
	Delayms(40);   //delay
	HD66773_sendcommand1(0x000D,0x0212);
	Delayms(30);   //delay
	HD66773_sendcommand1(0x0004,0x8000);  //cad=1
	Delayms(40); 
	//display on
/*
	HD66773_sendcommand1(0x0007,0x0105);
	Delayms(20);
	HD66773_sendcommand1(0x0007,0x0125);
	HD66773_sendcommand1(0x0007,0x0127);
	Delayms(30);
	HD66773_sendcommand1(0x0007,0x0137);
	Delayms(10);
*/
	HD66773_sendcommand1(0x0007,0x0137);

	Delayms(30);

	HD66773_sendcommand1(0x0007,0x0137);
	Delayms(10);

#else
	//power setting 1
	//HD66773_sendcommand1(0x0000,0x0001);
	//Delayms(20);   //delay
	//HD66773_sendcommand1(0x0003,0x0008);
	//Delayms(2);
	HD66773_sendcommand1(0x000C,0x0000);
	HD66773_sendcommand1(0x000D,0x0202);
	Delayms(2);
	HD66773_sendcommand1(0x000E,0x0915);
	Delayms(2);
	HD66773_sendcommand1(0x0003,0x0008);
	Delayms(10);   //delay
	//power setting 2
	HD66773_sendcommand1(0x000E,0x2915);
	Delayms(40);   //delay
	HD66773_sendcommand1(0x000D,0x0212);
	Delayms(30);   //delay
	HD66773_sendcommand1(0x0004,0x8000);  //cad=1
	Delayms(40);
	//display on
	/*
	HD66773_sendcommand1(0x0007,0x0105);
	Delayms(20);
	HD66773_sendcommand1(0x0007,0x0125);
	HD66773_sendcommand1(0x0007,0x0127);
	Delayms(30);
	HD66773_sendcommand1(0x0007,0x0137);
	Delayms(10);
	*/
	HD66773_sendcommand1(0x0007,0x0137);

	Delayms(30);

	HD66773_sendcommand1(0x0007,0x0137);
	Delayms(10);
#endif
}
#if 0
LOCAL void main_lcd_fill_rect(uint16 left, uint16 top,uint16 right,  uint16 bottom,uint16 color)
{
	uint16 i,j;
	uint16 *buf_ptr = (uint16 *)LCD_GetLCDBuffer();
	for(i = top; i < bottom;i++)
  {
    for(j = left; j < right; j++)
    {                 
    	*(buf_ptr+i*HD66773_WIDTH+j)=color;
    }
  }

}

void TestUpdateLcd(void)
{
	main_lcd_fill_rect(0,HD66773_WIDTH-1, 0, HD66773_HEIGHT-1, 0x0780);	
	while(1)
	{
		HD66773_Invalidate();			
	}
}
#endif


/**---------------------------------------------------------------------------*
 **                         Compiler Flag                                     *
 **---------------------------------------------------------------------------*/
#ifdef   __cplusplus
    }
#endif 

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