rt-thread/bsp/loongson/ls1bdev/drivers/display_controller.h

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2011-08-08     lgnq         first version for LS1B
 */

#ifndef __DISPLAY_CONTROLLER_H__
#define __DISPLAY_CONTROLLER_H__

#include <rtthread.h>
#include "ls1b.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        1024
#define FB_YSIZE        768
#define CONFIG_VIDEO_16BPP

#define APB_CLK 33333333

#define K1BASE              0xA0000000
#define KSEG1(addr)         ((void *)(K1BASE | (rt_uint32_t)(addr)))
#define HW_FB_ADDR          KSEG1(_rt_framebuffer)
#define HW_FB_PIXEL(x, y)   *(volatile rt_uint16_t*)((rt_uint8_t*)HW_FB_ADDR + (y * FB_XSIZE * 2) + x * 2)

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

#endif