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Laurent Pinchart140d8812010-08-18 11:41:22 -03001/*
2 * Multimedia device API
3 *
4 * Copyright (C) 2010 Nokia Corporation
5 *
6 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
7 * Sakari Ailus <sakari.ailus@iki.fi>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23#ifndef __LINUX_MEDIA_H
24#define __LINUX_MEDIA_H
25
26#include <linux/ioctl.h>
27#include <linux/types.h>
28#include <linux/version.h>
29
30#define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0)
31
32struct media_device_info {
33 char driver[16];
34 char model[32];
35 char serial[40];
36 char bus_info[32];
37 __u32 media_version;
38 __u32 hw_revision;
39 __u32 driver_version;
40 __u32 reserved[31];
41};
42
Laurent Pinchart16513332009-12-09 08:40:01 -030043#define MEDIA_ENT_ID_FLAG_NEXT (1 << 31)
44
45#define MEDIA_ENT_TYPE_SHIFT 16
46#define MEDIA_ENT_TYPE_MASK 0x00ff0000
47#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff
48
49#define MEDIA_ENT_T_DEVNODE (1 << MEDIA_ENT_TYPE_SHIFT)
50#define MEDIA_ENT_T_DEVNODE_V4L (MEDIA_ENT_T_DEVNODE + 1)
51#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_T_DEVNODE + 2)
52#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_T_DEVNODE + 3)
53#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_T_DEVNODE + 4)
54
55#define MEDIA_ENT_T_V4L2_SUBDEV (2 << MEDIA_ENT_TYPE_SHIFT)
56#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV + 1)
57#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2)
58#define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3)
59
60#define MEDIA_ENT_FL_DEFAULT (1 << 0)
61
62struct media_entity_desc {
63 __u32 id;
64 char name[32];
65 __u32 type;
66 __u32 revision;
67 __u32 flags;
68 __u32 group_id;
69 __u16 pads;
70 __u16 links;
71
72 __u32 reserved[4];
73
74 union {
75 /* Node specifications */
76 struct {
77 __u32 major;
78 __u32 minor;
79 } v4l;
80 struct {
81 __u32 major;
82 __u32 minor;
83 } fb;
84 struct {
85 __u32 card;
86 __u32 device;
87 __u32 subdevice;
88 } alsa;
89 int dvb;
90
91 /* Sub-device specifications */
92 /* Nothing needed yet */
93 __u8 raw[184];
94 };
95};
96
97#define MEDIA_PAD_FL_SINK (1 << 0)
98#define MEDIA_PAD_FL_SOURCE (1 << 1)
99
100struct media_pad_desc {
101 __u32 entity; /* entity ID */
102 __u16 index; /* pad index */
103 __u32 flags; /* pad flags */
104 __u32 reserved[2];
105};
106
107#define MEDIA_LNK_FL_ENABLED (1 << 0)
108#define MEDIA_LNK_FL_IMMUTABLE (1 << 1)
Laurent Pincharte02188c2010-08-25 09:00:41 -0300109#define MEDIA_LNK_FL_DYNAMIC (1 << 2)
Laurent Pinchart16513332009-12-09 08:40:01 -0300110
111struct media_link_desc {
112 struct media_pad_desc source;
113 struct media_pad_desc sink;
114 __u32 flags;
115 __u32 reserved[2];
116};
117
118struct media_links_enum {
119 __u32 entity;
120 /* Should have enough room for pads elements */
121 struct media_pad_desc __user *pads;
122 /* Should have enough room for links elements */
123 struct media_link_desc __user *links;
124 __u32 reserved[4];
125};
126
Laurent Pinchart474966e2011-03-05 17:14:33 -0300127#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info)
128#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)
129#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)
130#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)
Laurent Pinchart140d8812010-08-18 11:41:22 -0300131
132#endif /* __LINUX_MEDIA_H */