win-pvdrivers

view common/include/public/io/fbif.h @ 62:edd4a2ad5b44

Removed old inf files
author James Harper <james.harper@bendigoit.com.au>
date Wed Dec 19 10:22:50 2007 +1100 (2007-12-19)
parents 5712dede5a1b
children b474e898b409
line source
1 /*
2 * fbif.h -- Xen virtual frame buffer device
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 *
22 * Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
23 * Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
24 */
26 #ifndef __XEN_PUBLIC_IO_FBIF_H__
27 #define __XEN_PUBLIC_IO_FBIF_H__
29 /* Out events (frontend -> backend) */
31 /*
32 * Out events may be sent only when requested by backend, and receipt
33 * of an unknown out event is an error.
34 */
36 /* Event type 1 currently not used */
37 /*
38 * Framebuffer update notification event
39 * Capable frontend sets feature-update in xenstore.
40 * Backend requests it by setting request-update in xenstore.
41 */
42 #define XENFB_TYPE_UPDATE 2
44 struct xenfb_update
45 {
46 uint8_t type; /* XENFB_TYPE_UPDATE */
47 int32_t x; /* source x */
48 int32_t y; /* source y */
49 int32_t width; /* rect width */
50 int32_t height; /* rect height */
51 };
53 #define XENFB_OUT_EVENT_SIZE 40
55 union xenfb_out_event
56 {
57 uint8_t type;
58 struct xenfb_update update;
59 char pad[XENFB_OUT_EVENT_SIZE];
60 };
62 /* In events (backend -> frontend) */
64 /*
65 * Frontends should ignore unknown in events.
66 * No in events currently defined.
67 */
69 #define XENFB_IN_EVENT_SIZE 40
71 union xenfb_in_event
72 {
73 uint8_t type;
74 char pad[XENFB_IN_EVENT_SIZE];
75 };
77 /* shared page */
79 #define XENFB_IN_RING_SIZE 1024
80 #define XENFB_IN_RING_LEN (XENFB_IN_RING_SIZE / XENFB_IN_EVENT_SIZE)
81 #define XENFB_IN_RING_OFFS 1024
82 #define XENFB_IN_RING(page) \
83 ((union xenfb_in_event *)((char *)(page) + XENFB_IN_RING_OFFS))
84 #define XENFB_IN_RING_REF(page, idx) \
85 (XENFB_IN_RING((page))[(idx) % XENFB_IN_RING_LEN])
87 #define XENFB_OUT_RING_SIZE 2048
88 #define XENFB_OUT_RING_LEN (XENFB_OUT_RING_SIZE / XENFB_OUT_EVENT_SIZE)
89 #define XENFB_OUT_RING_OFFS (XENFB_IN_RING_OFFS + XENFB_IN_RING_SIZE)
90 #define XENFB_OUT_RING(page) \
91 ((union xenfb_out_event *)((char *)(page) + XENFB_OUT_RING_OFFS))
92 #define XENFB_OUT_RING_REF(page, idx) \
93 (XENFB_OUT_RING((page))[(idx) % XENFB_OUT_RING_LEN])
95 struct xenfb_page
96 {
97 uint32_t in_cons, in_prod;
98 uint32_t out_cons, out_prod;
100 int32_t width; /* the width of the framebuffer (in pixels) */
101 int32_t height; /* the height of the framebuffer (in pixels) */
102 uint32_t line_length; /* the length of a row of pixels (in bytes) */
103 uint32_t mem_length; /* the length of the framebuffer (in bytes) */
104 uint8_t depth; /* the depth of a pixel (in bits) */
106 /*
107 * Framebuffer page directory
108 *
109 * Each directory page holds PAGE_SIZE / sizeof(*pd)
110 * framebuffer pages, and can thus map up to PAGE_SIZE *
111 * PAGE_SIZE / sizeof(*pd) bytes. With PAGE_SIZE == 4096 and
112 * sizeof(unsigned long) == 4, that's 4 Megs. Two directory
113 * pages should be enough for a while.
114 */
115 unsigned long pd[2];
116 };
118 /*
119 * Wart: xenkbd needs to know resolution. Put it here until a better
120 * solution is found, but don't leak it to the backend.
121 */
122 #ifdef __KERNEL__
123 #define XENFB_WIDTH 800
124 #define XENFB_HEIGHT 600
125 #define XENFB_DEPTH 32
126 #endif
128 #endif
130 /*
131 * Local variables:
132 * mode: C
133 * c-set-style: "BSD"
134 * c-basic-offset: 4
135 * tab-width: 4
136 * indent-tabs-mode: nil
137 * End:
138 */