1 /* 2 * Multimedia device API 3 * 4 * Copyright (C) 2010 Nokia Corporation 5 * 6 * Contacts: Laurent Pinchart <laurent.pinchart (at) ideasonboard.com> 7 * Sakari Ailus <sakari.ailus (at) 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 32 struct 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 43 #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 /* A converter of analogue video to its digital representation. */ 60 #define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV + 4) 61 62 #define MEDIA_ENT_FL_DEFAULT (1 << 0) 63 64 struct media_entity_desc { 65 __u32 id; 66 char name[32]; 67 __u32 type; 68 __u32 revision; 69 __u32 flags; 70 __u32 group_id; 71 __u16 pads; 72 __u16 links; 73 74 __u32 reserved[4]; 75 76 union { 77 /* Node specifications */ 78 struct { 79 __u32 major; 80 __u32 minor; 81 } v4l; 82 struct { 83 __u32 major; 84 __u32 minor; 85 } fb; 86 struct { 87 __u32 card; 88 __u32 device; 89 __u32 subdevice; 90 } alsa; 91 int dvb; 92 93 /* Sub-device specifications */ 94 /* Nothing needed yet */ 95 __u8 raw[184]; 96 }; 97 }; 98 99 #define MEDIA_PAD_FL_SINK (1 << 0) 100 #define MEDIA_PAD_FL_SOURCE (1 << 1) 101 #define MEDIA_PAD_FL_MUST_CONNECT (1 << 2) 102 103 struct media_pad_desc { 104 __u32 entity; /* entity ID */ 105 __u16 index; /* pad index */ 106 __u32 flags; /* pad flags */ 107 __u32 reserved[2]; 108 }; 109 110 #define MEDIA_LNK_FL_ENABLED (1 << 0) 111 #define MEDIA_LNK_FL_IMMUTABLE (1 << 1) 112 #define MEDIA_LNK_FL_DYNAMIC (1 << 2) 113 114 struct media_link_desc { 115 struct media_pad_desc source; 116 struct media_pad_desc sink; 117 __u32 flags; 118 __u32 reserved[2]; 119 }; 120 121 struct media_links_enum { 122 __u32 entity; 123 /* Should have enough room for pads elements */ 124 struct media_pad_desc __user *pads; 125 /* Should have enough room for links elements */ 126 struct media_link_desc __user *links; 127 __u32 reserved[4]; 128 }; 129 130 #define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info) 131 #define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc) 132 #define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum) 133 #define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc) 134 135 #endif /* __LINUX_MEDIA_H */ 136
