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e2be04c7 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
140d8816
LP
2/*
3 * Multimedia device API
4 *
5 * Copyright (C) 2010 Nokia Corporation
6 *
7 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
8 * Sakari Ailus <sakari.ailus@iki.fi>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
140d8816
LP
18 */
19
20#ifndef __LINUX_MEDIA_H
21#define __LINUX_MEDIA_H
22
b3b7a9f1
MCC
23#ifndef __KERNEL__
24#include <stdint.h>
25#endif
140d8816
LP
26#include <linux/ioctl.h>
27#include <linux/types.h>
140d8816 28
140d8816
LP
29struct media_device_info {
30 char driver[16];
31 char model[32];
32 char serial[40];
33 char bus_info[32];
34 __u32 media_version;
35 __u32 hw_revision;
36 __u32 driver_version;
37 __u32 reserved[31];
38};
39
32fdc0e1 40/*
4ca72efa 41 * Base number ranges for entity functions
32fdc0e1 42 *
ed3056f0
HV
43 * NOTE: Userspace should not rely on these ranges to identify a group
44 * of function types, as newer functions can be added with any name within
45 * the full u32 range.
46 *
47 * Some older functions use the MEDIA_ENT_F_OLD_*_BASE range. Do not
48 * change this, this is for backwards compatibility. When adding new
49 * functions always use MEDIA_ENT_F_BASE.
32fdc0e1 50 */
ed3056f0
HV
51#define MEDIA_ENT_F_BASE 0x00000000
52#define MEDIA_ENT_F_OLD_BASE 0x00010000
53#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000
32fdc0e1
MCC
54
55/*
ed3056f0
HV
56 * Initial value to be used when a new entity is created
57 * Drivers should change it to something useful.
32fdc0e1 58 */
ed3056f0 59#define MEDIA_ENT_F_UNKNOWN MEDIA_ENT_F_BASE
fa17b46a 60
b50bde4e 61/*
ed3056f0
HV
62 * Subdevs are initialized with MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN in order
63 * to preserve backward compatibility. Drivers must change to the proper
64 * subdev type before registering the entity.
4ca72efa 65 */
ed3056f0 66#define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE
4ca72efa 67
06131932 68/*
ed3056f0 69 * DVB entity functions
06131932 70 */
ed3056f0
HV
71#define MEDIA_ENT_F_DTV_DEMOD (MEDIA_ENT_F_BASE + 0x00001)
72#define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0x00002)
73#define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0x00003)
74#define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0x00004)
8c755c29 75
7a2eba12 76/*
ed3056f0 77 * I/O entity functions
7a2eba12 78 */
ed3056f0
HV
79#define MEDIA_ENT_F_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1)
80#define MEDIA_ENT_F_IO_DTV (MEDIA_ENT_F_BASE + 0x01001)
81#define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0x01002)
82#define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0x01003)
7a2eba12 83
1179aab1 84/*
ed3056f0 85 * Sensor functions
1179aab1 86 */
ed3056f0
HV
87#define MEDIA_ENT_F_CAM_SENSOR (MEDIA_ENT_F_OLD_SUBDEV_BASE + 1)
88#define MEDIA_ENT_F_FLASH (MEDIA_ENT_F_OLD_SUBDEV_BASE + 2)
89#define MEDIA_ENT_F_LENS (MEDIA_ENT_F_OLD_SUBDEV_BASE + 3)
1179aab1 90
4ca72efa 91/*
ed3056f0 92 * Digital TV, analog TV, radio and/or software defined radio tuner functions.
4ca72efa 93 *
06131932
MCC
94 * It is a responsibility of the master/bridge drivers to add connectors
95 * and links for MEDIA_ENT_F_TUNER. Please notice that some old tuners
96 * may require the usage of separate I2C chips to decode analog TV signals,
97 * when the master/bridge chipset doesn't have its own TV standard decoder.
98 * On such cases, the IF-PLL staging is mapped via one or two entities:
99 * MEDIA_ENT_F_IF_VID_DECODER and/or MEDIA_ENT_F_IF_AUD_DECODER.
b3109d66 100 */
ed3056f0 101#define MEDIA_ENT_F_TUNER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 5)
4ca72efa 102
ed3056f0
HV
103/*
104 * Analog TV IF-PLL decoder functions
105 *
106 * It is a responsibility of the master/bridge drivers to create links
107 * for MEDIA_ENT_F_IF_VID_DECODER and MEDIA_ENT_F_IF_AUD_DECODER.
108 */
109#define MEDIA_ENT_F_IF_VID_DECODER (MEDIA_ENT_F_BASE + 0x02001)
110#define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0x02002)
49a11518 111
ed3056f0
HV
112/*
113 * Audio entity functions
114 */
115#define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0x03001)
116#define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0x03002)
117#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003)
4ca72efa
MCC
118
119/*
ed3056f0 120 * Processing entity functions
4ca72efa 121 */
ed3056f0
HV
122#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001)
123#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002)
124#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003)
125#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004)
126#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005)
127#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006)
45841a97
HV
128#define MEDIA_ENT_F_PROC_VIDEO_ENCODER (MEDIA_ENT_F_BASE + 0x4007)
129#define MEDIA_ENT_F_PROC_VIDEO_DECODER (MEDIA_ENT_F_BASE + 0x4008)
6c2c188f 130
ed3056f0
HV
131/*
132 * Switch and bridge entity functions
133 */
134#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001)
135#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002)
32fdc0e1 136
f2399f75
HV
137/*
138 * Video decoder/encoder functions
139 */
140#define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4)
141#define MEDIA_ENT_F_DV_DECODER (MEDIA_ENT_F_BASE + 0x6001)
142#define MEDIA_ENT_F_DV_ENCODER (MEDIA_ENT_F_BASE + 0x6002)
143
49a11518 144/* Entity flags */
ed3056f0
HV
145#define MEDIA_ENT_FL_DEFAULT (1 << 0)
146#define MEDIA_ENT_FL_CONNECTOR (1 << 1)
147
148/* OR with the entity id value to find the next entity */
5ca004d1 149#define MEDIA_ENT_ID_FLAG_NEXT (1U << 31)
1651333b
LP
150
151struct media_entity_desc {
152 __u32 id;
153 char name[32];
154 __u32 type;
155 __u32 revision;
156 __u32 flags;
157 __u32 group_id;
158 __u16 pads;
159 __u16 links;
160
161 __u32 reserved[4];
162
163 union {
164 /* Node specifications */
e31a0ba7
MCC
165 struct {
166 __u32 major;
167 __u32 minor;
168 } dev;
169
ed3056f0 170#if !defined(__KERNEL__)
7e182f78
HV
171 /*
172 * TODO: this shouldn't have been added without
173 * actual drivers that use this. When the first real driver
174 * appears that sets this information, special attention
175 * should be given whether this information is 1) enough, and
176 * 2) can deal with udev rules that rename devices. The struct
177 * dev would not be sufficient for this since that does not
178 * contain the subdevice information. In addition, struct dev
179 * can only refer to a single device, and not to multiple (e.g.
180 * pcm and mixer devices).
7e182f78
HV
181 */
182 struct {
183 __u32 card;
184 __u32 device;
185 __u32 subdevice;
186 } alsa;
7e182f78 187
e31a0ba7
MCC
188 /*
189 * DEPRECATED: previous node specifications. Kept just to
ed3056f0
HV
190 * avoid breaking compilation. Use media_entity_desc.dev
191 * instead.
e31a0ba7 192 */
1651333b
LP
193 struct {
194 __u32 major;
195 __u32 minor;
196 } v4l;
197 struct {
198 __u32 major;
199 __u32 minor;
200 } fb;
1651333b 201 int dvb;
e31a0ba7 202#endif
1651333b
LP
203
204 /* Sub-device specifications */
205 /* Nothing needed yet */
206 __u8 raw[184];
207 };
208};
209
ed3056f0
HV
210#define MEDIA_PAD_FL_SINK (1 << 0)
211#define MEDIA_PAD_FL_SOURCE (1 << 1)
212#define MEDIA_PAD_FL_MUST_CONNECT (1 << 2)
1651333b
LP
213
214struct media_pad_desc {
215 __u32 entity; /* entity ID */
216 __u16 index; /* pad index */
217 __u32 flags; /* pad flags */
218 __u32 reserved[2];
219};
220
ed3056f0
HV
221#define MEDIA_LNK_FL_ENABLED (1 << 0)
222#define MEDIA_LNK_FL_IMMUTABLE (1 << 1)
223#define MEDIA_LNK_FL_DYNAMIC (1 << 2)
1651333b 224
ed3056f0
HV
225#define MEDIA_LNK_FL_LINK_TYPE (0xf << 28)
226# define MEDIA_LNK_FL_DATA_LINK (0 << 28)
227# define MEDIA_LNK_FL_INTERFACE_LINK (1 << 28)
c398bb64 228
1651333b
LP
229struct media_link_desc {
230 struct media_pad_desc source;
231 struct media_pad_desc sink;
232 __u32 flags;
233 __u32 reserved[2];
234};
235
236struct media_links_enum {
237 __u32 entity;
238 /* Should have enough room for pads elements */
239 struct media_pad_desc __user *pads;
240 /* Should have enough room for links elements */
241 struct media_link_desc __user *links;
242 __u32 reserved[4];
243};
244
a1d2510e
MCC
245/* Interface type ranges */
246
ed3056f0
HV
247#define MEDIA_INTF_T_DVB_BASE 0x00000100
248#define MEDIA_INTF_T_V4L_BASE 0x00000200
a1d2510e
MCC
249
250/* Interface types */
251
ed3056f0
HV
252#define MEDIA_INTF_T_DVB_FE (MEDIA_INTF_T_DVB_BASE)
253#define MEDIA_INTF_T_DVB_DEMUX (MEDIA_INTF_T_DVB_BASE + 1)
254#define MEDIA_INTF_T_DVB_DVR (MEDIA_INTF_T_DVB_BASE + 2)
255#define MEDIA_INTF_T_DVB_CA (MEDIA_INTF_T_DVB_BASE + 3)
256#define MEDIA_INTF_T_DVB_NET (MEDIA_INTF_T_DVB_BASE + 4)
257
258#define MEDIA_INTF_T_V4L_VIDEO (MEDIA_INTF_T_V4L_BASE)
259#define MEDIA_INTF_T_V4L_VBI (MEDIA_INTF_T_V4L_BASE + 1)
260#define MEDIA_INTF_T_V4L_RADIO (MEDIA_INTF_T_V4L_BASE + 2)
261#define MEDIA_INTF_T_V4L_SUBDEV (MEDIA_INTF_T_V4L_BASE + 3)
262#define MEDIA_INTF_T_V4L_SWRADIO (MEDIA_INTF_T_V4L_BASE + 4)
263#define MEDIA_INTF_T_V4L_TOUCH (MEDIA_INTF_T_V4L_BASE + 5)
264
e377d3e9
SK
265#define MEDIA_INTF_T_ALSA_BASE 0x00000300
266#define MEDIA_INTF_T_ALSA_PCM_CAPTURE (MEDIA_INTF_T_ALSA_BASE)
267#define MEDIA_INTF_T_ALSA_PCM_PLAYBACK (MEDIA_INTF_T_ALSA_BASE + 1)
268#define MEDIA_INTF_T_ALSA_CONTROL (MEDIA_INTF_T_ALSA_BASE + 2)
269
ed3056f0 270#if defined(__KERNEL__)
5af557a6 271
c398bb64 272/*
ed3056f0 273 * Connector functions
c398bb64 274 *
ed3056f0
HV
275 * For now these should not be used in userspace, as some definitions may
276 * change.
c398bb64 277 *
ed3056f0 278 * It is the responsibility of the entity drivers to add connectors and links.
c398bb64 279 */
ed3056f0
HV
280#define MEDIA_ENT_F_CONN_RF (MEDIA_ENT_F_BASE + 0x30001)
281#define MEDIA_ENT_F_CONN_SVIDEO (MEDIA_ENT_F_BASE + 0x30002)
282#define MEDIA_ENT_F_CONN_COMPOSITE (MEDIA_ENT_F_BASE + 0x30003)
c398bb64 283
ed3056f0
HV
284#endif
285
286/*
287 * MC next gen API definitions
288 */
333a6515 289
588f4ee7
HV
290/*
291 * Appeared in 4.19.0.
292 *
293 * The media_version argument comes from the media_version field in
294 * struct media_device_info.
295 */
296#define MEDIA_V2_ENTITY_HAS_FLAGS(media_version) \
297 ((media_version) >= ((4 << 16) | (19 << 8) | 0))
298
c398bb64
MCC
299struct media_v2_entity {
300 __u32 id;
ed3056f0 301 char name[64];
d87cdb88 302 __u32 function; /* Main function of the entity */
588f4ee7
HV
303 __u32 flags;
304 __u32 reserved[5];
fbe093ac 305} __attribute__ ((packed));
c398bb64
MCC
306
307/* Should match the specific fields at media_intf_devnode */
308struct media_v2_intf_devnode {
309 __u32 major;
310 __u32 minor;
fbe093ac 311} __attribute__ ((packed));
c398bb64
MCC
312
313struct media_v2_interface {
314 __u32 id;
315 __u32 intf_type;
316 __u32 flags;
317 __u32 reserved[9];
318
319 union {
320 struct media_v2_intf_devnode devnode;
321 __u32 raw[16];
322 };
fbe093ac 323} __attribute__ ((packed));
c398bb64 324
30b914c8
HV
325/*
326 * Appeared in 4.19.0.
327 *
328 * The media_version argument comes from the media_version field in
329 * struct media_device_info.
330 */
331#define MEDIA_V2_PAD_HAS_INDEX(media_version) \
332 ((media_version) >= ((4 << 16) | (19 << 8) | 0))
333
c398bb64
MCC
334struct media_v2_pad {
335 __u32 id;
336 __u32 entity_id;
337 __u32 flags;
30b914c8
HV
338 __u32 index;
339 __u32 reserved[4];
fbe093ac 340} __attribute__ ((packed));
c398bb64
MCC
341
342struct media_v2_link {
343 __u32 id;
344 __u32 source_id;
345 __u32 sink_id;
346 __u32 flags;
fbe093ac
SA
347 __u32 reserved[6];
348} __attribute__ ((packed));
c398bb64
MCC
349
350struct media_v2_topology {
b3b7a9f1 351 __u64 topology_version;
c398bb64 352
7c9d6731
MCC
353 __u32 num_entities;
354 __u32 reserved1;
b3b7a9f1 355 __u64 ptr_entities;
c398bb64 356
7c9d6731
MCC
357 __u32 num_interfaces;
358 __u32 reserved2;
b3b7a9f1 359 __u64 ptr_interfaces;
c398bb64 360
7c9d6731
MCC
361 __u32 num_pads;
362 __u32 reserved3;
b3b7a9f1 363 __u64 ptr_pads;
c398bb64 364
7c9d6731
MCC
365 __u32 num_links;
366 __u32 reserved4;
b3b7a9f1 367 __u64 ptr_links;
fbe093ac 368} __attribute__ ((packed));
c398bb64
MCC
369
370/* ioctls */
a1d2510e 371
ed3056f0
HV
372#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info)
373#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)
374#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)
375#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)
376#define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology)
66431c0b
HV
377#define MEDIA_IOC_REQUEST_ALLOC _IOR ('|', 0x05, int)
378
379/*
380 * These ioctls are called on the request file descriptor as returned
381 * by MEDIA_IOC_REQUEST_ALLOC.
382 */
383#define MEDIA_REQUEST_IOC_QUEUE _IO('|', 0x80)
384#define MEDIA_REQUEST_IOC_REINIT _IO('|', 0x81)
ed3056f0 385
e1a98c16 386#ifndef __KERNEL__
ed3056f0
HV
387
388/*
389 * Legacy symbols used to avoid userspace compilation breakages.
390 * Do not use any of this in new applications!
391 *
392 * Those symbols map the entity function into types and should be
393 * used only on legacy programs for legacy hardware. Don't rely
394 * on those for MEDIA_IOC_G_TOPOLOGY.
395 */
396#define MEDIA_ENT_TYPE_SHIFT 16
397#define MEDIA_ENT_TYPE_MASK 0x00ff0000
398#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff
399
400#define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_F_OLD_BASE | \
401 MEDIA_ENT_SUBTYPE_MASK)
402
403#define MEDIA_ENT_T_DEVNODE MEDIA_ENT_F_OLD_BASE
404#define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_F_IO_V4L
405#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_F_OLD_BASE + 2)
406#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_F_OLD_BASE + 3)
407#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_F_OLD_BASE + 4)
408
409#define MEDIA_ENT_T_UNKNOWN MEDIA_ENT_F_UNKNOWN
410#define MEDIA_ENT_T_V4L2_VIDEO MEDIA_ENT_F_IO_V4L
411#define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN
412#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR MEDIA_ENT_F_CAM_SENSOR
413#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH MEDIA_ENT_F_FLASH
414#define MEDIA_ENT_T_V4L2_SUBDEV_LENS MEDIA_ENT_F_LENS
415#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER MEDIA_ENT_F_ATV_DECODER
416#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER MEDIA_ENT_F_TUNER
417
d272bc92
HV
418#define MEDIA_ENT_F_DTV_DECODER MEDIA_ENT_F_DV_DECODER
419
ed3056f0 420/*
e377d3e9 421 * There is still no full ALSA support in the media controller. These
ed3056f0
HV
422 * defines should not have been added and we leave them here only
423 * in case some application tries to use these defines.
e377d3e9
SK
424 *
425 * The ALSA defines that are in use have been moved into __KERNEL__
426 * scope. As support gets added to these interface types, they should
427 * be moved into __KERNEL__ scope with the code that uses them.
ed3056f0 428 */
e377d3e9
SK
429#define MEDIA_INTF_T_ALSA_COMPRESS (MEDIA_INTF_T_ALSA_BASE + 3)
430#define MEDIA_INTF_T_ALSA_RAWMIDI (MEDIA_INTF_T_ALSA_BASE + 4)
431#define MEDIA_INTF_T_ALSA_HWDEP (MEDIA_INTF_T_ALSA_BASE + 5)
432#define MEDIA_INTF_T_ALSA_SEQUENCER (MEDIA_INTF_T_ALSA_BASE + 6)
433#define MEDIA_INTF_T_ALSA_TIMER (MEDIA_INTF_T_ALSA_BASE + 7)
ed3056f0
HV
434
435/* Obsolete symbol for media_version, no longer used in the kernel */
87e1a881 436#define MEDIA_API_VERSION ((0 << 16) | (1 << 8) | 0)
ed3056f0
HV
437
438#endif
140d8816
LP
439
440#endif /* __LINUX_MEDIA_H */