cstn_nt7526.c

展讯平台多款LCD驱动：cstn_nt7526/cstn_S1D15G24/cstn_S6B33B5A

//	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 NT7526_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
	)
{
    SCI_TRACE_LOW("NT7526_SetDisplayWindow:%d,%d,%d,%d",left,top,right,bottom);
  	left 	= (left >= NT7526_WIDTH)    ? NT7526_WIDTH-1 : left;
	right 	= (right >= NT7526_WIDTH)   ? NT7526_WIDTH-1 : right;
	top 	= (top >= NT7526_HEIGHT)    ? NT7526_HEIGHT-1 : top;
	bottom 	= (bottom >= NT7526_HEIGHT) ? NT7526_HEIGHT-1 : bottom;

	if ( ( right < left ) || ( bottom < top ) )
	{
		SCI_TRACE_LOW(" NT7526_SetDisplayWindow wrong: right > left or bottom > top");
		return ERR_LCD_PARAMETER_WRONG;
	}
	
	//column address
	NT7526_Command(0x43);
	NT7526_Command(left);
	NT7526_Command(right);
	
	//row address
	NT7526_Command(0x42);
	NT7526_Command(top);
	NT7526_Command(bottom);
	
	return ERR_LCD_NONE;
}

/******************************************************************************/
//  Description:  set the contrast value 
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
LOCAL ERR_LCD_E   NT7526_SetContrast(
	uint16  contrast	//contrast value to set
	)
{
	return ERR_LCD_FUNC_NOT_SUPPORT;
} 

/*****************************************************************************/
//  Description:    Get the lcd base information..
//	Global resource dependence: 
//  Author:         louis.wei
//	Note:
/*****************************************************************************/
LOCAL  ERR_LCD_E   NT7526_GetInfo(
								   LCD_INFO_T *lcd_info_ptr	//lcd information struct pointer
								   )
{
	if ( PNULL == lcd_info_ptr )
	{
		return ERR_LCD_POINTER_NULL;	
	}
	
	lcd_info_ptr->r_bitmask			= 0xf800;
	lcd_info_ptr->g_bitmask			= 0x07e0;
	lcd_info_ptr->b_bitmask			= 0x001f;
	lcd_info_ptr->bits_per_pixel	= 16;
	lcd_info_ptr->contrast_min		= 0x00;
	lcd_info_ptr->contrast_max   	= 63;
	lcd_info_ptr->contrast_defaut	= 0x0A;
	
	lcd_info_ptr->lcd_width		= NT7526_WIDTH;
	lcd_info_ptr->lcd_height	= NT7526_HEIGHT;
	lcd_info_ptr->lcdbuff_ptr	= (void *)LCD_GetSubLCDBuffer();
		
	return ERR_LCD_NONE;
}


LOCAL ERR_LCD_E NT7526_Init(void)
{
    SCI_TRACE_LOW("NT7526_Init");
           
   	NT7526_Reset();
   	NT7526_Clear(0x001F);
    
	return ERR_LCD_NONE;
}

/*****************************************************************************/
//  Description:    Set the brightness of LCD.
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/*****************************************************************************/
LOCAL ERR_LCD_E   NT7526_SetBrightness(
	uint16 brightness	//birghtness to set
	)
{
	return ERR_LCD_FUNC_NOT_SUPPORT;
}

static LCD_SPEC_T g_NT7526_spec =
{
	0,		//uint8	rgb_sequence; 		/*rgb sequence*/
										/*0: R-G-B, 1: B-G-R*/
	10,		//uint8	min_cycle_read;		/*read cycle:  ns*/
	50,		//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*/
	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  NT7526_GetMainLcdSpec(
	LCD_SPEC_T *spec_ptr 	//spec struct pointer
	)
{
	if (spec_ptr == PNULL)
	{
		return 1;
	}
	
	memcpy(spec_ptr, &g_NT7526_spec, sizeof(LCD_SPEC_T));
	
	return ERR_LCD_NONE;
}

ERR_LCD_E NT7526_InvalidateRect_image(
	uint16 left, 	//the left value of the rectangel
	uint16 top, 	//top of the rectangle
	uint16 right, 	//right of the rectangle
	uint16 bottom,	//bottom of the rectangle
	uint16 *buf_ptr,
	uint8  is_invert
	)
{
	return ERR_LCD_NONE;
}

LOCAL ERR_LCD_E NT7526_InvalidateRect(
	uint16 left, 	//the left value of the rectangel
	uint16 top, 	//top of the rectangle
	uint16 right, 	//right of the rectangle
	uint16 bottom	//bottom of the rectangle
	)
{
	int16 x = 0, y = 0;
    const uint16 *buf = NULL;
    uint8	lcd_mode = 0;
    
    SCI_TRACE_LOW("NT7526_InvalidateRect: %d, %d, %d, %d.", left, top, right, bottom);
    if (LCD_GetRefreshFlag() != TRUE )
	{
		return ERR_LCD_OPERATE_FAIL ;
	}

	lcd_mode = w99685CMD_GetLCMControlMode();
	if( 1 == lcd_mode )
	{
		//W99685CMD_SetLCMControlMode(0);
		return ERR_LCD_NONE;
	}
	
    buf = (uint16 *)LCD_GetSubLCDBuffer();
    
    NT7526_SetDisplayWindow(left, top, right, bottom);
    
    for (y = top; y <= bottom; y++)
    {
        for (x = left; x <= right; x++)
        {
            NT7526_Data(buf[y*NT7526_WIDTH + x]);
        }
    }
    
    if( 1 == lcd_mode )
	{
		W99685CMD_SetLCMControlMode(0);
	}
	
   	return ERR_LCD_NONE;
}


 LOCAL LCD_OPERATIONS_T NT7526_operations = 
{
	NT7526_Init,
	NT7526_EnterSleep,
	NT7526_SetContrast,
	NT7526_SetBrightness,
	NT7526_SetDisplayWindow,
	NT7526_GetInfo,
	NT7526_InvalidateRect,
	NT7526_InvalidateRect_image,	
	NT7526_Invalidate,
	NT7526_Clear,
	NT7526_Close,
	NT7526_GetMainLcdSpec
};

/******************************************************************************/
//  Description:  return the HD66773 lcd driver funtion pointer
//	Global resource dependence: 
//  Author:         Jim.zhang
//	Note:
/******************************************************************************/
PUBLIC LCD_OPERATIONS_T* NT7526_GetOperations()
{
	return &NT7526_operations;
}

PUBLIC BOOLEAN NT7526_Probe(void)
{
	return SCI_TRUE;	
}


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