view src/cs/drivers/drv_app/r2d/lcds/luna/r2d_task_i_96x64.c @ 276:4221c724c664

R2D: preparations for adding LCD hardware suspend handling
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 Sep 2021 21:05:38 +0000
parents c905daaff834
children
line wrap: on
line source

#include "r2d/lcds/luna/r2d_luna_lcd.h"
#include "r2d/lcds/luna/colormap.h"

void r2d_lcd_power_on(void)
{
}

void r2d_lcd_power_off(void)
{
}

void r2d_refresh(void)
{
	UINT16 i, j, k;
	UINT32 v;
	UINT32 *p;
	INT16 y1, y2;

	p=r2d_g_framebuffer->p_memory_words;
    
	y1=r2d_update_ul_y; //0
	y2=r2d_update_br_y; //63

	if (y1 > y2)
		return;
	r2d_reinit_update_region();

	/* set window area */
	LCD_REG_WR(0x36, 135);
	LCD_REG_WR(0x37, 40);
	LCD_REG_WR(0x38, y2 + 78);
	LCD_REG_WR(0x39, y1 + 78);
	/* set current write address */
	LCD_REG_WR(0x20, 40);
	LCD_REG_WR(0x21, y1 + 78);
	/* set up for GRAM write */
	LCD_IR = 0x22;

	p=p+y1*R2D_MWWIDTH;

	for (i=y1;i<=y2;i++)
	{
		for (j = 0; j < R2D_MWWIDTH-1; j++)
		{
			v=*p++;
			for (k=0;k<32;k++)
			{
				if (v&1)
					LCD_DR = LCD16_COLOR_BLACK;
				else
					LCD_DR = LCD16_COLOR_WHITE;
				v=v>>1;
			}
		}	    
		p++;
	} 
}