Lines Matching +full:i2s +full:- +full:tx +full:- +full:route
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * V4L2 sub-device support header.
12 #include <linux/v4l2-subdev.h>
13 #include <media/media-entity.h>
14 #include <media/v4l2-async.h>
15 #include <media/v4l2-common.h>
16 #include <media/v4l2-dev.h>
17 #include <media/v4l2-fh.h>
18 #include <media/v4l2-mediabus.h>
43 * struct v4l2_decode_vbi_line - used to decode_vbi_line
49 * @line: Line number of the sliced VBI data (1-23)
60 * Sub-devices are devices that are connected somehow to the main bridge
68 * generic manner. Most operations that these sub-devices support fall in
97 * The ioctl ops is meant for generic ioctl-like commands. Depending on
98 * the use-case it might be better to use subdev-specific ops (currently
99 * not yet implemented) since ops provide proper type-checking.
103 * enum v4l2_subdev_io_pin_bits - Subdevice external IO pin configuration
110 * &struct v4l2_subdev_io_pin_config->value.
123 * struct v4l2_subdev_io_pin_config - Subdevice external IO pin configuration
128 * @function: Internal signal pad/function to route to IO pin
129 * @value: Initial value for pin - e.g. GPIO output value
141 * struct v4l2_subdev_core_ops - Define core ops callbacks for subdevs
159 * drivers without discussing this first on the linux-media mailinglist.
165 * @command: called by in-kernel drivers in order to call functions internal
219 * struct v4l2_subdev_tuner_ops - Callbacks used when v4l device was opened
233 * freq->type must be filled in. Normally done by video_ioctl2()
240 * @s_tuner: callback for VIDIOC_S_TUNER() ioctl handler code. @vt->type must be
283 * struct v4l2_subdev_audio_ops - Callbacks used for audio-related settings
289 * -EINVAL is returned.
291 * @s_i2s_clock_freq: sets I2S speed in bps. This is used to provide a standard
292 * way to select I2S clock used by driving digital audio streams at some
294 * If the frequency is not supported, then %-EINVAL is returned.
298 * Never attempt to use user-level input IDs (e.g. Composite, S-Video,
302 * The calling driver is responsible for mapping a user-level input to
318 * @vc: CSI-2 virtual channel
319 * @dt: CSI-2 data type ID
327 * enum v4l2_mbus_frame_desc_flags - media bus frame description flags
330 * Indicates that &struct v4l2_mbus_frame_desc_entry->length field
342 * struct v4l2_mbus_frame_desc_entry - media bus frame description structure
349 * @bus: Bus-specific frame descriptor parameters
350 * @bus.csi2: CSI-2-specific bus configuration
368 * enum v4l2_mbus_frame_desc_type - media bus frame description type
376 * CSI-2 media bus. Frame desc parameters must be set in
377 * &struct v4l2_mbus_frame_desc_entry->csi2.
386 * struct v4l2_mbus_frame_desc - media bus data frame description
398 * enum v4l2_subdev_pre_streamon_flags - Flags for pre_streamon subdev core op
400 * @V4L2_SUBDEV_PRE_STREAMON_FL_MANUAL_LP: Set the transmitter to either LP-11
401 * or LP-111 mode before call to s_stream().
408 * struct v4l2_subdev_video_ops - Callbacks used when v4l device was opened
417 * to 0. If the frequency is not supported, then -EINVAL is returned.
464 * initialising the bus. Current usage is to set a CSI-2 transmitter to
465 * LP-11 or LP-111 mode before streaming. See &enum
469 * indicated by the flags argument. In particular, -EACCES indicates lack
506 * struct v4l2_subdev_vbi_ops - Callbacks used when v4l device was opened
526 * the readback register contains invalid or erroneous data %-EIO is
551 * struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations
566 * enum v4l2_subdev_ir_mode- describes the type of IR supported
575 * struct v4l2_subdev_ir_parameters - Parameters for IR TX or TX
590 * @invert_carrier_sense: Send 0/space as a carrier burst. used only in TX.
613 /* Tx only */
624 * struct v4l2_subdev_ir_ops - operations for IR subdevices
627 * The semantics are similar to a non-blocking read() call.
636 * settings - e.g. an actual carrier setting of 35,904 Hz when 36,000 Hz
643 * The semantics are similar to a non-blocking write() call.
652 * settings - e.g. an actual carrier setting of 35,904 Hz when 36,000 Hz
679 * struct v4l2_subdev_pad_config - Used for storing subdev pad information.
699 * struct v4l2_subdev_state - Used for storing subdev state information.
717 * struct v4l2_subdev_pad_ops - v4l2-subdev pad level operations
754 * @get_mbus_config: get the media bus configuration of a remote sub-device.
756 * firmware interface at sub-device probe time, immediately
758 * driver. Remote sub-devices (usually video receivers) shall
761 * Callers should make sure they get the most up-to-date as
811 * struct v4l2_subdev_ops - Subdev operations
834 * struct v4l2_subdev_internal_ops - V4L2 subdev internal ops
849 * filehandle to the v4l-subdevX device node was closed. If no device
850 * node was created for this sub-device, then the @release callback
854 * sub-device that sets the V4L2_SUBDEV_FL_HAS_DEVNODE flag.
886 * struct v4l2_subdev_platform_data - regulators config struct
890 * @host_priv: Per-subdevice data, specific for a certain video host device
900 * struct v4l2_subdev - describes a V4L2 sub-device
903 * @list: List of sub-devices
905 * @owner_v4l2_dev: true if the &sd->owner matches the owner of @v4l2_dev->dev
908 * %V4L2_SUBDEV_FL_IS_I2C - Set this flag if this subdev is a i2c device;
909 * %V4L2_SUBDEV_FL_IS_SPI - Set this flag if this subdev is a spi device;
910 * %V4L2_SUBDEV_FL_HAS_DEVNODE - Set this flag if this subdev needs a
912 * %V4L2_SUBDEV_FL_HAS_EVENTS - Set this flag if this subdev generates
920 * @name: Name of the sub-device. Please notice that the name must be unique.
921 * @grp_id: can be used to group similar subdevs. Value is driver-specific
928 * either dev->of_node->fwnode or dev->fwnode (whichever is non-NULL).
929 * @async_list: Links this subdev to a global subdev_list or @notifier->done
933 * @subdev_notifier: A sub-device notifier implicitly registered for the sub-
944 * stand-alone or embedded in a larger struct.
991 * media_entity_to_v4l2_subdev - Returns a &struct v4l2_subdev from
1006 * vdev_to_v4l2_subdev - Returns a &struct v4l2_subdev from
1015 * struct v4l2_subdev_fh - Used for storing subdev information per file handle
1030 * to_v4l2_subdev_fh - Returns a &struct v4l2_subdev_fh from
1041 * v4l2_subdev_get_pad_format - ancillary routine to call
1042 * &struct v4l2_subdev_pad_config->try_fmt
1046 * @pad: index of the pad in the &struct v4l2_subdev_state->pads array
1055 if (WARN_ON(pad >= sd->entity.num_pads)) in v4l2_subdev_get_pad_format()
1057 return &state->pads[pad].try_fmt; in v4l2_subdev_get_pad_format()
1061 * v4l2_subdev_get_pad_crop - ancillary routine to call
1062 * &struct v4l2_subdev_pad_config->try_crop
1066 * @pad: index of the pad in the &struct v4l2_subdev_state->pads array.
1075 if (WARN_ON(pad >= sd->entity.num_pads)) in v4l2_subdev_get_pad_crop()
1077 return &state->pads[pad].try_crop; in v4l2_subdev_get_pad_crop()
1081 * v4l2_subdev_get_pad_compose - ancillary routine to call
1082 * &struct v4l2_subdev_pad_config->try_compose
1086 * @pad: index of the pad in the &struct v4l2_subdev_state->pads array.
1095 if (WARN_ON(pad >= sd->entity.num_pads)) in v4l2_subdev_get_pad_compose()
1097 return &state->pads[pad].try_compose; in v4l2_subdev_get_pad_compose()
1118 * v4l2_set_subdevdata - Sets V4L2 dev private device data
1125 sd->dev_priv = p; in v4l2_set_subdevdata()
1129 * v4l2_get_subdevdata - Gets V4L2 dev private device data
1137 return sd->dev_priv; in v4l2_get_subdevdata()
1141 * v4l2_set_subdev_hostdata - Sets V4L2 dev private host data
1148 sd->host_priv = p; in v4l2_set_subdev_hostdata()
1152 * v4l2_get_subdev_hostdata - Gets V4L2 dev private data
1160 return sd->host_priv; in v4l2_get_subdev_hostdata()
1166 * v4l2_subdev_get_fwnode_pad_1_to_1 - Get pad number from a subdev fwnode
1183 * v4l2_subdev_link_validate_default - validates a media link
1199 * v4l2_subdev_link_validate - validates a media link
1212 * __v4l2_subdev_state_alloc - allocate v4l2_subdev_state
1227 * __v4l2_subdev_state_free - free a v4l2_subdev_state
1236 * v4l2_subdev_init_finalize() - Finalizes the initialization of the subdevice
1253 ":" __stringify(__LINE__) ":sd->active_state->lock"; \
1261 * v4l2_subdev_cleanup() - Releases the resources allocated by the subdevice
1270 * v4l2_subdev_lock_state() - Locks the subdev state
1279 mutex_lock(state->lock); in v4l2_subdev_lock_state()
1283 * v4l2_subdev_unlock_state() - Unlocks the subdev state
1290 mutex_unlock(state->lock); in v4l2_subdev_unlock_state()
1294 * v4l2_subdev_get_unlocked_active_state() - Checks that the active subdev state
1308 if (sd->active_state) in v4l2_subdev_get_unlocked_active_state()
1309 lockdep_assert_not_held(sd->active_state->lock); in v4l2_subdev_get_unlocked_active_state()
1310 return sd->active_state; in v4l2_subdev_get_unlocked_active_state()
1314 * v4l2_subdev_get_locked_active_state() - Checks that the active subdev state
1329 if (sd->active_state) in v4l2_subdev_get_locked_active_state()
1330 lockdep_assert_held(sd->active_state->lock); in v4l2_subdev_get_locked_active_state()
1331 return sd->active_state; in v4l2_subdev_get_locked_active_state()
1335 * v4l2_subdev_lock_and_get_active_state() - Locks and returns the active subdev
1347 if (sd->active_state) in v4l2_subdev_lock_and_get_active_state()
1348 v4l2_subdev_lock_state(sd->active_state); in v4l2_subdev_lock_and_get_active_state()
1349 return sd->active_state; in v4l2_subdev_lock_and_get_active_state()
1355 * v4l2_subdev_get_fmt() - Fill format based on state
1360 * Fill @format->format field based on the information in the @format struct.
1376 * v4l2_subdev_init - initializes the sub-device struct
1387 * v4l2_subdev_call - call an operation of a v4l2_subdev.
1404 __result = -ENODEV; \
1405 else if (!(__sd->ops->o && __sd->ops->o->f)) \
1406 __result = -ENOIOCTLCMD; \
1408 v4l2_subdev_call_wrappers.o->f) \
1409 __result = v4l2_subdev_call_wrappers.o->f( \
1412 __result = __sd->ops->o->f(__sd, ##args); \
1417 * v4l2_subdev_call_state_active - call an operation of a v4l2_subdev which
1447 * v4l2_subdev_call_state_try - call an operation of a v4l2_subdev which
1463 * Note: only legacy non-MC drivers may need this macro.
1470 ":" __stringify(__LINE__) ":state->lock"; \
1481 * v4l2_subdev_has_op - Checks if a subdev defines a certain operation.
1489 ((sd)->ops->o && (sd)->ops->o->f)
1492 * v4l2_subdev_notify_event() - Delivers event notification for subdevice