include/asm-mips/gfx.h

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