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e64171b97b
A lot of SOCs including Texas Instruments Davinci family mainly use video decoders as input devices. This patch adds a flag 'MEDIA_ENT_T_V4L2_SUBDEV_DECODER' media entity type for decoder's. Along side updates the documentation for this media entity type. Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/*
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* Multimedia device API
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*
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* Copyright (C) 2010 Nokia Corporation
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*
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* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Sakari Ailus <sakari.ailus@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __LINUX_MEDIA_H
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#define __LINUX_MEDIA_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include <linux/version.h>
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#define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0)
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struct media_device_info {
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char driver[16];
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char model[32];
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char serial[40];
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char bus_info[32];
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__u32 media_version;
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__u32 hw_revision;
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__u32 driver_version;
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__u32 reserved[31];
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};
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#define MEDIA_ENT_ID_FLAG_NEXT (1 << 31)
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#define MEDIA_ENT_TYPE_SHIFT 16
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#define MEDIA_ENT_TYPE_MASK 0x00ff0000
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#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff
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#define MEDIA_ENT_T_DEVNODE (1 << MEDIA_ENT_TYPE_SHIFT)
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#define MEDIA_ENT_T_DEVNODE_V4L (MEDIA_ENT_T_DEVNODE + 1)
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#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_T_DEVNODE + 2)
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#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_T_DEVNODE + 3)
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#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_T_DEVNODE + 4)
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#define MEDIA_ENT_T_V4L2_SUBDEV (2 << MEDIA_ENT_TYPE_SHIFT)
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#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV + 1)
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#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2)
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#define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3)
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/* A converter of analogue video to its digital representation. */
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#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV + 4)
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#define MEDIA_ENT_FL_DEFAULT (1 << 0)
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struct media_entity_desc {
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__u32 id;
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char name[32];
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__u32 type;
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__u32 revision;
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__u32 flags;
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__u32 group_id;
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__u16 pads;
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__u16 links;
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__u32 reserved[4];
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union {
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/* Node specifications */
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struct {
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__u32 major;
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__u32 minor;
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} v4l;
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struct {
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__u32 major;
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__u32 minor;
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} fb;
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struct {
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__u32 card;
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__u32 device;
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__u32 subdevice;
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} alsa;
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int dvb;
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/* Sub-device specifications */
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/* Nothing needed yet */
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__u8 raw[184];
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};
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};
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#define MEDIA_PAD_FL_SINK (1 << 0)
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#define MEDIA_PAD_FL_SOURCE (1 << 1)
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struct media_pad_desc {
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__u32 entity; /* entity ID */
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__u16 index; /* pad index */
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__u32 flags; /* pad flags */
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__u32 reserved[2];
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};
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#define MEDIA_LNK_FL_ENABLED (1 << 0)
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#define MEDIA_LNK_FL_IMMUTABLE (1 << 1)
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#define MEDIA_LNK_FL_DYNAMIC (1 << 2)
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struct media_link_desc {
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struct media_pad_desc source;
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struct media_pad_desc sink;
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__u32 flags;
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__u32 reserved[2];
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};
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struct media_links_enum {
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__u32 entity;
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/* Should have enough room for pads elements */
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struct media_pad_desc __user *pads;
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/* Should have enough room for links elements */
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struct media_link_desc __user *links;
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__u32 reserved[4];
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};
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#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info)
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#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)
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#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)
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#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)
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#endif /* __LINUX_MEDIA_H */
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