| | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| | 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. |
| | 18 | * |
| | 19 | * You should have received a copy of the GNU General Public License |
| | 20 | * along with this program; if not, write to the Free Software |
| | 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| | 22 | */ |
| | 23 | |
| | 24 | #ifndef __LINUX_MEDIA_H |
| | 25 | #define __LINUX_MEDIA_H |
| | 26 | |
| | 27 | #ifndef __KERNEL__ |
| | 28 | #include <stdint.h> |
| | 29 | #endif |
| | 30 | #include <linux/ioctl.h> |
| | 31 | #include <linux/types.h> |
| | 32 | #include <linux/version.h> |
| | 33 | |
| | 34 | struct media_device_info { |
| | 35 | char driver[16]; |
| | 36 | char model[32]; |
| | 37 | char serial[40]; |
| | 38 | char bus_info[32]; |
| | 39 | __u32 media_version; |
| | 40 | __u32 hw_revision; |
| | 41 | __u32 driver_version; |
| | 42 | __u32 reserved[31]; |
| | 43 | }; |
| | 44 | |
| | 45 | #define MEDIA_ENT_ID_FLAG_NEXT (1 << 31) |
| | 46 | |
| | 47 | /* |
| | 48 | * Initial value to be used when a new entity is created |
| | 49 | * Drivers should change it to something useful |
| | 50 | */ |
| | 51 | #define MEDIA_ENT_F_UNKNOWN 0x00000000 |
| | 52 | |
| | 53 | /* |
| | 54 | * Base number ranges for entity functions |
| | 55 | * |
| | 56 | * NOTE: those ranges and entity function number are phased just to |
| | 57 | * make it easier to maintain this file. Userspace should not rely on |
| | 58 | * the ranges to identify a group of function types, as newer |
| | 59 | * functions can be added with any name within the full u32 range. |
| | 60 | */ |
| | 61 | #define MEDIA_ENT_F_BASE 0x00000000 |
| | 62 | #define MEDIA_ENT_F_OLD_BASE 0x00010000 |
| | 63 | #define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000 |
| | 64 | |
| | 65 | /* |
| | 66 | * DVB entities |
| | 67 | */ |
| | 68 | #define MEDIA_ENT_F_DTV_DEMOD (MEDIA_ENT_F_BASE + 0x00001) |
| | 69 | #define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0x00002) |
| | 70 | #define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0x00003) |
| | 71 | #define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0x00004) |
| | 72 | |
| | 73 | /* |
| | 74 | * I/O entities |
| | 75 | */ |
| | 76 | #define MEDIA_ENT_F_IO_DTV (MEDIA_ENT_F_BASE + 0x01001) |
| | 77 | #define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0x01002) |
| | 78 | #define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0x01003) |
| | 79 | |
| | 80 | /* |
| | 81 | * Analog TV IF-PLL decoders |
| | 82 | * |
| | 83 | * It is a responsibility of the master/bridge drivers to create links |
| | 84 | * for MEDIA_ENT_F_IF_VID_DECODER and MEDIA_ENT_F_IF_AUD_DECODER. |
| | 85 | */ |
| | 86 | #define MEDIA_ENT_F_IF_VID_DECODER (MEDIA_ENT_F_BASE + 0x02001) |
| | 87 | #define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0x02002) |
| | 88 | |
| | 89 | /* |
| | 90 | * Audio Entity Functions |
| | 91 | */ |
| | 92 | #define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0x03001) |
| | 93 | #define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0x03002) |
| | 94 | #define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003) |
| | 95 | |
| | 96 | /* |
| | 97 | * Processing entities |
| | 98 | */ |
| | 99 | #define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001) |
| | 100 | #define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002) |
| | 101 | #define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003) |
| | 102 | #define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004) |
| | 103 | #define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005) |
| | 104 | #define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006) |
| | 105 | |
| | 106 | /* |
| | 107 | * Switch and bridge entitites |
| | 108 | */ |
| | 109 | #define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001) |
| | 110 | #define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002) |
| | 111 | |
| | 112 | /* |
| | 113 | * Connectors |
| | 114 | */ |
| | 115 | /* It is a responsibility of the entity drivers to add connectors and links */ |
| | 116 | #ifdef __KERNEL__ |
| | 117 | /* |
| | 118 | * For now, it should not be used in userspace, as some |
| | 119 | * definitions may change |
| | 120 | */ |
| | 121 | |
| | 122 | #define MEDIA_ENT_F_CONN_RF (MEDIA_ENT_F_BASE + 0x30001) |
| | 123 | #define MEDIA_ENT_F_CONN_SVIDEO (MEDIA_ENT_F_BASE + 0x30002) |
| | 124 | #define MEDIA_ENT_F_CONN_COMPOSITE (MEDIA_ENT_F_BASE + 0x30003) |
| | 125 | |
| | 126 | #endif |
| | 127 | |
| | 128 | /* |
| | 129 | * Don't touch on those. The ranges MEDIA_ENT_F_OLD_BASE and |
| | 130 | * MEDIA_ENT_F_OLD_SUBDEV_BASE are kept to keep backward compatibility |
| | 131 | * with the legacy v1 API.The number range is out of range by purpose: |
| | 132 | * several previously reserved numbers got excluded from this range. |
| | 133 | * |
| | 134 | * Subdevs are initialized with MEDIA_ENT_T_V4L2_SUBDEV_UNKNOWN, |
| | 135 | * in order to preserve backward compatibility. |
| | 136 | * Drivers must change to the proper subdev type before |
| | 137 | * registering the entity. |
| | 138 | */ |
| | 139 | |
| | 140 | #define MEDIA_ENT_F_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1) |
| | 141 | |
| | 142 | #define MEDIA_ENT_F_CAM_SENSOR (MEDIA_ENT_F_OLD_SUBDEV_BASE + 1) |
| | 143 | #define MEDIA_ENT_F_FLASH (MEDIA_ENT_F_OLD_SUBDEV_BASE + 2) |
| | 144 | #define MEDIA_ENT_F_LENS (MEDIA_ENT_F_OLD_SUBDEV_BASE + 3) |
| | 145 | #define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4) |
| | 146 | /* |
| | 147 | * It is a responsibility of the master/bridge drivers to add connectors |
| | 148 | * and links for MEDIA_ENT_F_TUNER. Please notice that some old tuners |
| | 149 | * may require the usage of separate I2C chips to decode analog TV signals, |
| | 150 | * when the master/bridge chipset doesn't have its own TV standard decoder. |
| | 151 | * On such cases, the IF-PLL staging is mapped via one or two entities: |
| | 152 | * MEDIA_ENT_F_IF_VID_DECODER and/or MEDIA_ENT_F_IF_AUD_DECODER. |
| | 153 | */ |
| | 154 | #define MEDIA_ENT_F_TUNER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 5) |
| | 155 | |
| | 156 | #define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE |
| | 157 | |
| | 158 | #if !defined(__KERNEL__) || defined(__NEED_MEDIA_LEGACY_API) |
| | 159 | |
| | 160 | /* |
| | 161 | * Legacy symbols used to avoid userspace compilation breakages |
| | 162 | * |
| | 163 | * Those symbols map the entity function into types and should be |
| | 164 | * used only on legacy programs for legacy hardware. Don't rely |
| | 165 | * on those for MEDIA_IOC_G_TOPOLOGY. |
| | 166 | */ |
| | 167 | #define MEDIA_ENT_TYPE_SHIFT 16 |
| | 168 | #define MEDIA_ENT_TYPE_MASK 0x00ff0000 |
| | 169 | #define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff |
| | 170 | |
| | 171 | /* End of the old subdev reserved numberspace */ |
| | 172 | #define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_T_DEVNODE | \ |
| | 173 | MEDIA_ENT_SUBTYPE_MASK) |
| | 174 | |
| | 175 | #define MEDIA_ENT_T_DEVNODE MEDIA_ENT_F_OLD_BASE |
| | 176 | #define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_F_IO_V4L |
| | 177 | #define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_T_DEVNODE + 2) |
| | 178 | #define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_T_DEVNODE + 3) |
| | 179 | #define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_T_DEVNODE + 4) |
| | 180 | |
| | 181 | #define MEDIA_ENT_T_UNKNOWN MEDIA_ENT_F_UNKNOWN |
| | 182 | #define MEDIA_ENT_T_V4L2_VIDEO MEDIA_ENT_F_IO_V4L |
| | 183 | #define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN |
| | 184 | #define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR MEDIA_ENT_F_CAM_SENSOR |
| | 185 | #define MEDIA_ENT_T_V4L2_SUBDEV_FLASH MEDIA_ENT_F_FLASH |
| | 186 | #define MEDIA_ENT_T_V4L2_SUBDEV_LENS MEDIA_ENT_F_LENS |
| | 187 | #define MEDIA_ENT_T_V4L2_SUBDEV_DECODER MEDIA_ENT_F_ATV_DECODER |
| | 188 | #define MEDIA_ENT_T_V4L2_SUBDEV_TUNER MEDIA_ENT_F_TUNER |
| | 189 | |
| | 190 | /* Obsolete symbol for media_version, no longer used in the kernel */ |
| | 191 | #define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0) |
| | 192 | #endif |
| | 193 | |
| | 194 | /* Entity flags */ |
| | 195 | #define MEDIA_ENT_FL_DEFAULT (1 << 0) |
| | 196 | #define MEDIA_ENT_FL_CONNECTOR (1 << 1) |
| | 197 | |
| | 198 | struct media_entity_desc { |
| | 199 | __u32 id; |
| | 200 | char name[32]; |
| | 201 | __u32 type; |
| | 202 | __u32 revision; |
| | 203 | __u32 flags; |
| | 204 | __u32 group_id; |
| | 205 | __u16 pads; |
| | 206 | __u16 links; |
| | 207 | |
| | 208 | __u32 reserved[4]; |
| | 209 | |
| | 210 | union { |
| | 211 | /* Node specifications */ |
| | 212 | struct { |
| | 213 | __u32 major; |
| | 214 | __u32 minor; |
| | 215 | } dev; |
| | 216 | |
| | 217 | #if 1 |
| | 218 | /* |
| | 219 | * TODO: this shouldn't have been added without |
| | 220 | * actual drivers that use this. When the first real driver |
| | 221 | * appears that sets this information, special attention |
| | 222 | * should be given whether this information is 1) enough, and |
| | 223 | * 2) can deal with udev rules that rename devices. The struct |
| | 224 | * dev would not be sufficient for this since that does not |
| | 225 | * contain the subdevice information. In addition, struct dev |
| | 226 | * can only refer to a single device, and not to multiple (e.g. |
| | 227 | * pcm and mixer devices). |
| | 228 | * |
| | 229 | * So for now mark this as a to do. |
| | 230 | */ |
| | 231 | struct { |
| | 232 | __u32 card; |
| | 233 | __u32 device; |
| | 234 | __u32 subdevice; |
| | 235 | } alsa; |
| | 236 | #endif |
| | 237 | |
| | 238 | #if 1 |
| | 239 | /* |
| | 240 | * DEPRECATED: previous node specifications. Kept just to |
| | 241 | * avoid breaking compilation, but media_entity_desc.dev |
| | 242 | * should be used instead. In particular, alsa and dvb |
| | 243 | * fields below are wrong: for all devnodes, there should |
| | 244 | * be just major/minor inside the struct, as this is enough |
| | 245 | * to represent any devnode, no matter what type. |
| | 246 | */ |
| | 247 | struct { |
| | 248 | __u32 major; |
| | 249 | __u32 minor; |
| | 250 | } v4l; |
| | 251 | struct { |
| | 252 | __u32 major; |
| | 253 | __u32 minor; |
| | 254 | } fb; |
| | 255 | int dvb; |
| | 256 | #endif |
| | 257 | |
| | 258 | /* Sub-device specifications */ |
| | 259 | /* Nothing needed yet */ |
| | 260 | __u8 raw[184]; |
| | 261 | }; |
| | 262 | }; |
| | 263 | |
| | 264 | #define MEDIA_PAD_FL_SINK (1 << 0) |
| | 265 | #define MEDIA_PAD_FL_SOURCE (1 << 1) |
| | 266 | #define MEDIA_PAD_FL_MUST_CONNECT (1 << 2) |
| | 267 | |
| | 268 | struct media_pad_desc { |
| | 269 | __u32 entity; /* entity ID */ |
| | 270 | __u16 index; /* pad index */ |
| | 271 | __u32 flags; /* pad flags */ |
| | 272 | __u32 reserved[2]; |
| | 273 | }; |
| | 274 | |
| | 275 | #define MEDIA_LNK_FL_ENABLED (1 << 0) |
| | 276 | #define MEDIA_LNK_FL_IMMUTABLE (1 << 1) |
| | 277 | #define MEDIA_LNK_FL_DYNAMIC (1 << 2) |
| | 278 | |
| | 279 | #define MEDIA_LNK_FL_LINK_TYPE (0xf << 28) |
| | 280 | # define MEDIA_LNK_FL_DATA_LINK (0 << 28) |
| | 281 | # define MEDIA_LNK_FL_INTERFACE_LINK (1 << 28) |
| | 282 | |
| | 283 | struct media_link_desc { |
| | 284 | struct media_pad_desc source; |
| | 285 | struct media_pad_desc sink; |
| | 286 | __u32 flags; |
| | 287 | __u32 reserved[2]; |
| | 288 | }; |
| | 289 | |
| | 290 | struct media_links_enum { |
| | 291 | __u32 entity; |
| | 292 | /* Should have enough room for pads elements */ |
| | 293 | struct media_pad_desc __user *pads; |
| | 294 | /* Should have enough room for links elements */ |
| | 295 | struct media_link_desc __user *links; |
| | 296 | __u32 reserved[4]; |
| | 297 | }; |
| | 298 | |
| | 299 | /* Interface type ranges */ |
| | 300 | |
| | 301 | #define MEDIA_INTF_T_DVB_BASE 0x00000100 |
| | 302 | #define MEDIA_INTF_T_V4L_BASE 0x00000200 |
| | 303 | #define MEDIA_INTF_T_ALSA_BASE 0x00000300 |
| | 304 | |
| | 305 | /* Interface types */ |
| | 306 | |
| | 307 | #define MEDIA_INTF_T_DVB_FE (MEDIA_INTF_T_DVB_BASE) |
| | 308 | #define MEDIA_INTF_T_DVB_DEMUX (MEDIA_INTF_T_DVB_BASE + 1) |
| | 309 | #define MEDIA_INTF_T_DVB_DVR (MEDIA_INTF_T_DVB_BASE + 2) |
| | 310 | #define MEDIA_INTF_T_DVB_CA (MEDIA_INTF_T_DVB_BASE + 3) |
| | 311 | #define MEDIA_INTF_T_DVB_NET (MEDIA_INTF_T_DVB_BASE + 4) |
| | 312 | |
| | 313 | #define MEDIA_INTF_T_V4L_VIDEO (MEDIA_INTF_T_V4L_BASE) |
| | 314 | #define MEDIA_INTF_T_V4L_VBI (MEDIA_INTF_T_V4L_BASE + 1) |
| | 315 | #define MEDIA_INTF_T_V4L_RADIO (MEDIA_INTF_T_V4L_BASE + 2) |
| | 316 | #define MEDIA_INTF_T_V4L_SUBDEV (MEDIA_INTF_T_V4L_BASE + 3) |
| | 317 | #define MEDIA_INTF_T_V4L_SWRADIO (MEDIA_INTF_T_V4L_BASE + 4) |
| | 318 | #define MEDIA_INTF_T_V4L_TOUCH (MEDIA_INTF_T_V4L_BASE + 5) |
| | 319 | |
| | 320 | #define MEDIA_INTF_T_ALSA_PCM_CAPTURE (MEDIA_INTF_T_ALSA_BASE) |
| | 321 | #define MEDIA_INTF_T_ALSA_PCM_PLAYBACK (MEDIA_INTF_T_ALSA_BASE + 1) |
| | 322 | #define MEDIA_INTF_T_ALSA_CONTROL (MEDIA_INTF_T_ALSA_BASE + 2) |
| | 323 | #define MEDIA_INTF_T_ALSA_COMPRESS (MEDIA_INTF_T_ALSA_BASE + 3) |
| | 324 | #define MEDIA_INTF_T_ALSA_RAWMIDI (MEDIA_INTF_T_ALSA_BASE + 4) |
| | 325 | #define MEDIA_INTF_T_ALSA_HWDEP (MEDIA_INTF_T_ALSA_BASE + 5) |
| | 326 | #define MEDIA_INTF_T_ALSA_SEQUENCER (MEDIA_INTF_T_ALSA_BASE + 6) |
| | 327 | #define MEDIA_INTF_T_ALSA_TIMER (MEDIA_INTF_T_ALSA_BASE + 7) |
| | 328 | |
| | 329 | /* |
| | 330 | * MC next gen API definitions |
| | 331 | * |
| | 332 | * NOTE: The declarations below are close to the MC RFC for the Media |
| | 333 | * Controller, the next generation. Yet, there are a few adjustments |
| | 334 | * to do, as we want to be able to have a functional API before |
| | 335 | * the MC properties change. Those will be properly marked below. |
| | 336 | * Please also notice that I removed "num_pads", "num_links", |
| | 337 | * from the proposal, as a proper userspace application will likely |
| | 338 | * use lists for pads/links, just as we intend to do in Kernelspace. |
| | 339 | * The API definition should be freed from fields that are bound to |
| | 340 | * some specific data structure. |
| | 341 | * |
| | 342 | * FIXME: Currently, I opted to name the new types as "media_v2", as this |
| | 343 | * won't cause any conflict with the Kernelspace namespace, nor with |
| | 344 | * the previous kAPI media_*_desc namespace. This can be changed |
| | 345 | * later, before the adding this API upstream. |
| | 346 | */ |
| | 347 | |
| | 348 | |
| | 349 | struct media_v2_entity { |
| | 350 | __u32 id; |
| | 351 | char name[64]; /* FIXME: move to a property? (RFC says so) */ |
| | 352 | __u32 function; /* Main function of the entity */ |
| | 353 | __u32 reserved[6]; |
| | 354 | } __attribute__ ((packed)); |
| | 355 | |
| | 356 | /* Should match the specific fields at media_intf_devnode */ |
| | 357 | struct media_v2_intf_devnode { |
| | 358 | __u32 major; |
| | 359 | __u32 minor; |
| | 360 | } __attribute__ ((packed)); |
| | 361 | |
| | 362 | struct media_v2_interface { |
| | 363 | __u32 id; |
| | 364 | __u32 intf_type; |
| | 365 | __u32 flags; |
| | 366 | __u32 reserved[9]; |
| | 367 | |
| | 368 | union { |
| | 369 | struct media_v2_intf_devnode devnode; |
| | 370 | __u32 raw[16]; |
| | 371 | }; |
| | 372 | } __attribute__ ((packed)); |
| | 373 | |
| | 374 | struct media_v2_pad { |
| | 375 | __u32 id; |
| | 376 | __u32 entity_id; |
| | 377 | __u32 flags; |
| | 378 | __u32 reserved[5]; |
| | 379 | } __attribute__ ((packed)); |
| | 380 | |
| | 381 | struct media_v2_link { |
| | 382 | __u32 id; |
| | 383 | __u32 source_id; |
| | 384 | __u32 sink_id; |
| | 385 | __u32 flags; |
| | 386 | __u32 reserved[6]; |
| | 387 | } __attribute__ ((packed)); |
| | 388 | |
| | 389 | struct media_v2_topology { |
| | 390 | __u64 topology_version; |
| | 391 | |
| | 392 | __u32 num_entities; |
| | 393 | __u32 reserved1; |
| | 394 | __u64 ptr_entities; |
| | 395 | |
| | 396 | __u32 num_interfaces; |
| | 397 | __u32 reserved2; |
| | 398 | __u64 ptr_interfaces; |
| | 399 | |
| | 400 | __u32 num_pads; |
| | 401 | __u32 reserved3; |
| | 402 | __u64 ptr_pads; |
| | 403 | |
| | 404 | __u32 num_links; |
| | 405 | __u32 reserved4; |
| | 406 | __u64 ptr_links; |
| | 407 | } __attribute__ ((packed)); |
| | 408 | |
| | 409 | /* ioctls */ |
| | 410 | |
| | 411 | #define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info) |
| | 412 | #define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc) |
| | 413 | #define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum) |
| | 414 | #define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc) |
| | 415 | #define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology) |
| | 416 | |
| | 417 | #endif /* __LINUX_MEDIA_H */ |
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