vga_regs.h

VGA模块的VHDL代码和软件驱动

#ifndef VGA_REGS_H_
#define VGA_REGS_H_

#include <io.h>

#define VGACARD_DISP_EN_BIT	0x01	//	I/O
#define VGACARD_SWITCH_BIT	0x02	//	O

#define VGACARD_INIT_STATE	(0)

#define IOWR_VGACARD_DATA(addr, data)	IOWR_16DIRECT(addr, 0, data)
#define IORD_VGACARD_DATA(addr)			IORD_16DIRECT(addr, 0)

#define IOWR_VGACARD_CTRL(base, ctrl)	IOWR_16DIRECT(base, 0x40000, ctrl)
#define IOWR_VGACARD_CTRL_MASK			(VGACARD_DISP_EN_BIT|VGACARD_SWITCH_BIT)

#define IORD_VGACARD_CTRL(base)			IORD_16DIRECT(base, 0x40000)
#define IORD_VGACARD_CTRL_MASK			(VGACARD_DISP_EN_BIT)

#endif /*VGA_REGS_H_*/