tft_st7732.c

LCD驱动代码

		  ST7732_SEND_COMMAND(0x2b);
		  ST7732_SEND_DATA(0x00);
		  ST7732_SEND_DATA(left);
		  ST7732_SEND_DATA(0x00);
		  ST7732_SEND_DATA(right);

         }
		
		
	  }
	else

	  {
		ST7732_sendcommand1(0x0036,0x0000 );
		ST7732_set_display_window(left,top,right,bottom);
	  }
 	 	
	  ST7732_SEND_COMMAND(WRITE_GRAM_COMMAND); 
	
	
   if (is_invert)

      {
		for (j = left; j <= right; j++)
		{		
			for (i = top; i <= bottom; i++)
			{
				ST7732_SEND_DATA( *(buf_ptr + j * 176 + i) ); 
				
			}
			   
		}				
	   }
	else
	   {
		for (j = left; j <= right; j++)
		{		
			for (i = top; i <= bottom; i++)
			{
				ST7732_SEND_DATA( *(buf_ptr + j * 176 + i) ); 
			}
		  }					
	    }	


	ST7732_sendcommand1(0x0036,0x0000 );
	
	return ERR_LCD_NONE;
}
/*@Zhemin.Lin, CR9122, begin*/

static LCD_SPEC_T g_ST7732_spec =
{
	0,		//uint8	rgb_sequence; 		/*rgb sequence*/
										/*0: R-G-B, 1: B-G-R*/
	10,	    //uint8	min_cycle_read;	    /*read cycle:  ns*/
	100,	//uint8	min_cycle_write;	/*write cycle: ns*/
	0,		//uint8	cyclenum_sendaddr;	/*operation cycle to send address*/
										/* 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*/
	0x2a,	//uint8	win_setstartx_cmd;	/*window x start address set command*/
	0x00,	//uint8	win_setendx_cmd;	/*window x end address set command*/
	0x2b,	//uint8	win_setstarty_cmd;	/*window y start address set command*/
	0x00,	//uint8	gram_setx_cmd;		/*gram x address set command*/
	0x00,	//uint8	gram_sety_cmd;		/*gram y address set command*/
	0x37,	//uint8	gram_sety_cmd;		/*gram y address set command*/
	0x2e,	//uint8	gram_read_cmd;		/*gram read command*/
	0x2c,	//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  ST7732_GetMainLcdSpec(
	LCD_SPEC_T *spec_ptr 	//spec struct pointer
	)
{
	if (spec_ptr == PNULL)
	{
		return 1;
	}
	
	memcpy(spec_ptr, &g_ST7732_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  ST7732_EnterSleep(
	BOOLEAN is_sleep 	//SCI_TRUE: exter sleep mode;SCI_FALSE:exit sleep mode.
	)
{
	SCI_TRACE_LOW("ST7732_EnterSleep,%d", is_sleep);

	if ( is_sleep ) // enter sleep mode.
	{
		ST7732_GoSleep(); 
	}
	else 			// out sleep mode 
	{
		
		ST7732_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 ST7732_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
	)
{
	ST7732_set_display_window(left, top, right, bottom);

	ST7732_set_start_address(left, top);		//@David.Jia 2005.12.26

	//ST7732_SEND_COMMAND(0x0022); 				//@David.Jia 2005.12.26

	return ERR_LCD_NONE;
}

/*********************************************************************/
//  Description:   Initialize color LCD : ST7732
//  Input:
//      None.
//  Author:         yinchun.li
//  Return:
//      None.
//	Note:
//  modify:  jim.cui  2005.0728 add dma init  
/*********************************************************************/
LOCAL ERR_LCD_E ST7732_Init(void)
{
	
	//dma init
	dma_init ();
	
	//ST7732_HW_reset();
	ST7732_reset();
	
	ST7732_Clear( 0xf25f );
	
	return ERR_LCD_NONE;
}


/******************************************************************************/
//  Description:  set the contrast value 
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
LOCAL ERR_LCD_E   ST7732_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   ST7732_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 ST7732_Close()
{
    GPIO_SetLcdBackLight( SCI_FALSE );
    ST7732_EnterSleep( SCI_TRUE );	
}


LOCAL LCD_OPERATIONS_T ST7732_operations = 
{
	ST7732_Init,
	ST7732_EnterSleep,
	ST7732_SetContrast,
	ST7732_SetBrightness,
	ST7732_SetDisplayWindow,
	ST7732_GetInfo,
	ST7732_InvalidateRect,
	ST7732_InvalidateRectImage,
	ST7732_Invalidate,
	ST7732_Clear,
	ST7732_Close,
	ST7732_GetMainLcdSpec
};

/******************************************************************************/
//  Description:  return the ST7732 lcd driver funtion pointer
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
PUBLIC LCD_OPERATIONS_T* ST7732_GetOperations()
{
	return &ST7732_operations;
}

#define ADC_NUM 10
PUBLIC BOOLEAN ST7732_Probe(void)
{
	return SCI_TRUE;
}


LOCAL ST7732_GoSleep(void)
{


   ST7732_SEND_COMMAND(0x28);
   ST7732_SEND_COMMAND(0x10);
   Delayms(150);

   
}

LOCAL ST7732_ExitSleep(void)
{

		Delayms(200);

		ST7732_SEND_COMMAND(0x11);
		Delayms(500);


		//---------Note: 必须添加下面的代码,否则退出休眠会画屏---

	    ST7732_SEND_COMMAND( 0x036 );	
	    ST7732_SEND_DATA( 0x00 );
                        
        ST7732_SEND_COMMAND(0x2A);
	    ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x7f);
      
      
        ST7732_SEND_COMMAND(0x2B);
	    ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x00);
        ST7732_SEND_DATA(0x9f);

		ST7732_SEND_COMMAND( 0x03a );	 
	    ST7732_SEND_DATA( 0x05 );	
        ST7732_SEND_COMMAND( 0x29);


}

/**********************************************************************************************
#if 1
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*ST7732_WIDTH+j)=color;
		}
	}

}


void main_lcd_test()
 {
	unsigned long i;


	//GPIO_SetLcdReset( 0 );	//lcd hardware reset.
	//for(i=0; i<3500; i++);		
	//GPIO_SetLcdReset( 1 );

	GPIO_SetLcdBackLight( SCI_TRUE );//set backlight 

	ST7732_reset();// lcd init 

	for(i=0; i<3500; i++);
	main_lcd_fill_rect(0,0,ST7732_WIDTH,ST7732_HEIGHT/3,0xf800);//r
	main_lcd_fill_rect(0,ST7732_HEIGHT/3,ST7732_WIDTH,(2*ST7732_HEIGHT)/3,0x07e0);//g	
	main_lcd_fill_rect(0,(2*ST7732_HEIGHT)/3,ST7732_WIDTH,ST7732_HEIGHT,0x001f);//g	
	ST7732_Invalidate();
	for(i=0; i<3500; i++);
	main_lcd_fill_rect(0,0,ST7732_WIDTH,ST7732_HEIGHT,0x5171);//r	

	ST7732_InvalidateRect(0,0,20,30);
	//for(i=0; i<3500; i++); 
	//while(1);
}
#endif
*******************************************/

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