1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * This is the user-visible SGI GFX interface.
7 *
8 * This must be used verbatim into the GNU libc.  It does not include
9 * any kernel-only bits on it.
10 *
11 * miguel@nuclecu.unam.mx
12 */
13#ifndef _ASM_GFX_H
14#define _ASM_GFX_H
15
16/* The iocls, yes, they do not make sense, but such is life */
17#define GFX_BASE             100
18#define GFX_GETNUM_BOARDS    (GFX_BASE + 1)
19#define GFX_GETBOARD_INFO    (GFX_BASE + 2)
20#define GFX_ATTACH_BOARD     (GFX_BASE + 3)
21#define GFX_DETACH_BOARD     (GFX_BASE + 4)
22#define GFX_IS_MANAGED       (GFX_BASE + 5)
23
24#define GFX_MAPALL           (GFX_BASE + 10)
25#define GFX_LABEL            (GFX_BASE + 11)
26
27#define GFX_INFO_NAME_SIZE  16
28#define GFX_INFO_LABEL_SIZE 16
29
30struct gfx_info {
31	char name  [GFX_INFO_NAME_SIZE];  /* board name */
32	char label [GFX_INFO_LABEL_SIZE]; /* label name */
33	unsigned short int xpmax, ypmax;  /* screen resolution */
34	unsigned int lenght;	          /* size of a complete gfx_info for this board */
35};
36
37struct gfx_getboardinfo_args {
38	unsigned int board;     /* board number.  starting from zero */
39	void *buf;              /* pointer to gfx_info */
40	unsigned int len;       /* buffer size of buf */
41};
42
43struct gfx_attach_board_args {
44	unsigned int board;	/* board number, starting from zero */
45	void        *vaddr;	/* address where the board registers should be mapped */
46};
47
48#ifdef __KERNEL__
49/* umap.c */
50extern void remove_mapping (struct task_struct *, unsigned long, unsigned long);
51extern void *vmalloc_uncached (unsigned long size);
52extern int vmap_page_range (unsigned long from, unsigned long size, unsigned long vaddr);
53#endif
54
55#endif /* _ASM_GFX_H */
56