display_controller.h

/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date                Author           Notes
 * 2011-08-08     lgnq            first version for LS1B
 * 2015-07-06    chinesebear   modified for loongson 1c
  * 2018-01-06    sundm75   modified for smartloong 
*/
 
#ifndef __DISPLAY_CONTROLLER_H__
#define __DISPLAY_CONTROLLER_H__

#include <rtthread.h>
#include "ls1c.h"

#define DC_BASE                 0xBC301240  //Display Controller

/* Frame Buffer registers */
#define DC_FB_CONFIG			__REG32(DC_BASE + 0x000)
#define DC_FB_BUFFER_ADDR0		__REG32(DC_BASE + 0x020)
#define DC_FB_BUFFER_STRIDE		__REG32(DC_BASE + 0x040)
#define DC_FB_BUFFER_ORIGIN		__REG32(DC_BASE + 0x060)
#define DC_DITHER_CONFIG		__REG32(DC_BASE + 0x120)
#define DC_DITHER_TABLE_LOW		__REG32(DC_BASE + 0x140)
#define DC_DITHER_TABLE_HIGH	__REG32(DC_BASE + 0x160)
#define DC_PANEL_CONFIG			__REG32(DC_BASE + 0x180)
#define DC_PANEL_TIMING			__REG32(DC_BASE + 0x1A0)
#define DC_HDISPLAY				__REG32(DC_BASE + 0x1C0)
#define DC_HSYNC				__REG32(DC_BASE + 0x1E0)
#define DC_VDISPLAY				__REG32(DC_BASE + 0x240)
#define DC_VSYNC				__REG32(DC_BASE + 0x260)
#define DC_FB_BUFFER_ADDR1		__REG32(DC_BASE + 0x340)

/* Display Controller driver for 1024x768 16bit */
#define FB_XSIZE		480
#define FB_YSIZE		272
#define CONFIG_VIDEO_16BPP

#define OSC 24000000 		/* Hz */

#define K1BASE				0xA0000000
#define KSEG1(addr)			((void *)(K1BASE | (rt_uint32_t)(addr)))
#define HW_FB_ADDR			KSEG1(_rt_framebuffer)

struct vga_struct
{
    long pclk;
    int hr,hss,hse,hfl;
    int vr,vss,vse,vfl;
};

#endif