1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* bvbuffdesc.h
*
* Copyright (C) 2011 Texas Instruments, Inc.
*
* This file is part of BLTsville, an open application programming interface
* (API) for accessing 2-D software or hardware implementations.
*
* This work is licensed under the Creative Commons Attribution-NoDerivs 3.0
* Unported License. To view a copy of this license, visit
* http://creativecommons.org/licenses/by-nd/3.0/ or send a letter to
* Creative Commons, 444 Castro Street, Suite 900, Mountain View, California,
* 94041, USA.
*/
#ifndef BVBUFFDESC_H
#define BVBUFFDESC_H
/*
* bvbuffmap - This is a private structure used by BLTsville
* implementations to manage resources associated with a buffer. A pointer
* to this is returned from bv_map() and used in subsequent bv_blt() and
* bv_unmap() calls.
*/
struct bvbuffmap;
#define BVATDEF_VENDOR_SHIFT 24
#define BVATDEF_VENDOR_MASK (0xFF << BVATDEF_VENDOR_SHIFT)
/* Common aux type */
#define BVATDEF_VENDOR_ALL (0x00 << BVATDEF_VENDOR_SHIFT)
/* Texas Instruments, Inc. */
#define BVATDEF_VENDOR_TI (0x01 << BVATDEF_VENDOR_SHIFT)
enum bvauxtype {
BVAT_NONE = 0, /* auxptr not used */
BVAT_reserved1 = /* reserved */
BVATDEF_VENDOR_ALL + 1,
BVAT_reserved2 = /* reserved */
BVATDEF_VENDOR_ALL + 2,
#ifdef BVAT_EXTERNAL_INCLUDE
#include BVAT_EXTERNAL_INCLUDE
#endif
};
/*
* bvbuffdesc - This structure is used to specify the buffer parameters
* in a call to bv_map().
*/
struct bvbuffdesc {
unsigned int structsize; /* used to identify struct version */
void *virtaddr; /* virtual ptr to start of buffer */
unsigned long length; /* length of the buffer in bytes */
struct bvbuffmap *map; /* resource(s) associated w/buffer */
enum bvauxtype auxtype; /* type of auxptr */
void *auxptr; /* additional buffer description data;
type depends on auxtype */
};
#endif /* BVBUFFDESC_H */
|
