4 * Copyright (c) 1994 Christian E. Hopps
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Christian E. Hopps.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 * The view major device is a placeholder device. It serves
35 * simply to map the semantics of a graphics display to
36 * the semantics of a character block device. In other
37 * words the graphics system as currently built does not like to be
38 * refered to by open/close/ioctl. This device serves as
39 * a interface to graphics.
50 #define VIOCREMOVE _IO('V', 0x0) /* if displaying remove. */
51 #define VIOCDISPLAY _IO('V', 0x1) /* if not displaying, display */
52 #define VIOCSSIZE _IOW('V', 0x2, struct view_size)
53 #define VIOCGSIZE _IOR('V', 0x3, struct view_size)
54 #define VIOCGBMAP _IOR('V', 0x4, bmap_t)
55 #define VIOCSCMAP _IOW('V', 0x5, colormap_t)
56 #define VIOCGCMAP _IOWR('V', 0x6, colormap_t)