xref: /freebsd/sys/dev/fb/vgareg.h (revision 195ebc7e9e4b129de810833791a19dfb4349d6a9)
1 /*-
2  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer as
10  *    the first lines of this file unmodified.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _DEV_FB_VGAREG_H_
30 #define _DEV_FB_VGAREG_H_
31 
32 /* physical addresses */
33 #define MDA_BUF_BASE		0xb0000
34 #define MDA_BUF_SIZE		0x08000
35 #define MDA_BUF			BIOS_PADDRTOVADDR(MDA_BUF_BASE)
36 #define CGA_BUF_BASE		0xb8000
37 #define CGA_BUF_SIZE		0x08000
38 #define CGA_BUF			BIOS_PADDRTOVADDR(CGA_BUF_BASE)
39 #define EGA_BUF_BASE		0xa0000
40 #define EGA_BUF_SIZE		0x20000
41 #define EGA_BUF			BIOS_PADDRTOVADDR(EGA_BUF_BASE)
42 #define GRAPHICS_BUF_BASE	0xa0000
43 #define GRAPHICS_BUF_SIZE	0x10000
44 #define GRAPHICS_BUF		BIOS_PADDRTOVADDR(GRAPHICS_BUF_BASE)
45 #define FONT_BUF		BIOS_PADDRTOVADDR(GRAPHICS_BUF_BASE)
46 #define VIDEO_BUF_BASE		0xa0000
47 #define VIDEO_BUF_SIZE		0x20000
48 
49 /* I/O port addresses */
50 #define MONO_CRTC	(IO_MDA + 0x04)		/* crt controller base mono */
51 #define COLOR_CRTC	(IO_CGA + 0x04)		/* crt controller base color */
52 #define MISC		(IO_VGA + 0x02)		/* misc output register */
53 #define ATC		(IO_VGA + 0x00)		/* attribute controller */
54 #define TSIDX		(IO_VGA + 0x04)		/* timing sequencer idx */
55 #define TSREG		(IO_VGA + 0x05)		/* timing sequencer data */
56 #define PIXMASK		(IO_VGA + 0x06)		/* pixel write mask */
57 #define PALRADR		(IO_VGA + 0x07)		/* palette read address */
58 #define PALWADR		(IO_VGA + 0x08)		/* palette write address */
59 #define PALDATA		(IO_VGA + 0x09)		/* palette data register */
60 #define GDCIDX		(IO_VGA + 0x0E)		/* graph data controller idx */
61 #define GDCREG		(IO_VGA + 0x0F)		/* graph data controller data */
62 
63 #define VGA_DRIVER_NAME		"vga"
64 #define VGA_UNIT(dev)		dev2unit(dev)
65 #define VGA_MKMINOR(unit)	(unit)
66 
67 #ifdef _KERNEL
68 
69 struct video_adapter;
70 typedef struct vga_softc {
71 	struct video_adapter	*adp;
72 	void			*state_buf;
73 #ifdef FB_INSTALL_CDEV
74 	genfb_softc_t		gensc;
75 #endif
76 } vga_softc_t;
77 
78 int		vga_probe_unit(int unit, struct video_adapter *adp, int flags);
79 int		vga_attach_unit(int unit, vga_softc_t *sc, int flags);
80 
81 #ifdef FB_INSTALL_CDEV
82 int		vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode,
83 			 struct thread *td);
84 int		vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode,
85 			  struct thread *td);
86 int		vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag);
87 int		vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag);
88 int		vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg,
89 			  int flag, struct thread *td);
90 int		vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_offset_t offset,
91 			 vm_offset_t *paddr, int prot);
92 #endif
93 
94 extern int	(*vga_sub_configure)(int flags);
95 
96 #endif /* _KERNEL */
97 
98 #endif /* _DEV_FB_VGAREG_H_ */
99