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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Media Bus API header
*
* Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*/
#ifndef V4L2_MEDIABUS_H
#define V4L2_MEDIABUS_H
#include <linux/v4l2-mediabus.h>
#include <linux/bitops.h>
/*
* How to use the V4L2_MBUS_* flags:
* Flags are defined for each of the possible states and values of a media
* bus configuration parameter. One and only one bit of each group of flags
* shall be set by the users of the v4l2_subdev_pad_ops.get_mbus_config
* operation to ensure that no conflicting settings are specified when
* reporting the media bus configuration. For example, it is invalid to set or
* clear both the V4L2_MBUS_HSYNC_ACTIVE_HIGH and the
* V4L2_MBUS_HSYNC_ACTIVE_LOW flag at the same time. Instead either flag
* V4L2_MBUS_HSYNC_ACTIVE_HIGH or flag V4L2_MBUS_HSYNC_ACTIVE_LOW shall be set.
*
* TODO: replace the existing V4L2_MBUS_* flags with structures of fields
* to avoid conflicting settings.
*
* In example:
* #define V4L2_MBUS_HSYNC_ACTIVE_HIGH BIT(2)
* #define V4L2_MBUS_HSYNC_ACTIVE_LOW BIT(3)
* will be replaced by a field whose value reports the intended active state of
* the signal:
* unsigned int v4l2_mbus_hsync_active : 1;
*/
/* Parallel flags */
/*
* The client runs in master or in slave mode. By "Master mode" an operation
* mode is meant, when the client (e.g., a camera sensor) is producing
* horizontal and vertical synchronisation. In "Slave mode" the host is
* providing these signals to the slave.
*/
#define V4L2_MBUS_MASTER BIT(0)
#define V4L2_MBUS_SLAVE BIT(1)
/*
* Signal polarity flags
* Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
* V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
* configuration of hardware that uses [HV]REF signals
*/
#define V4L2_MBUS_HSYNC_ACTIVE_HIGH BIT(2)
#define V4L2_MBUS_HSYNC_ACTIVE_LOW BIT(3)
#define V4L2_MBUS_VSYNC_ACTIVE_HIGH BIT(4)
#define V4L2_MBUS_VSYNC_ACTIVE_LOW BIT(5)
#define V4L2_MBUS_PCLK_SAMPLE_RISING BIT(6)
#define V4L2_MBUS_PCLK_SAMPLE_FALLING BIT(7)
#define V4L2_MBUS_DATA_ACTIVE_HIGH BIT(8)
#define V4L2_MBUS_DATA_ACTIVE_LOW BIT(9)
/* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_HIGH BIT(10)
/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_LOW BIT(11)
/* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH BIT(12)
#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW BIT(13)
#define V4L2_MBUS_DATA_ENABLE_HIGH BIT(14)
#define V4L2_MBUS_DATA_ENABLE_LOW BIT(15)
/* Serial flags */
/* Clock non-continuous mode support. */
#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK BIT(0)
#define V4L2_MBUS_CSI2_MAX_DATA_LANES 8
/**
* struct v4l2_mbus_config_mipi_csi2 - MIPI CSI-2 data bus configuration
* @flags: media bus (V4L2_MBUS_*) flags
* @data_lanes: an array of physical data lane indexes
* @clock_lane: physical lane index of the clock lane
* @num_data_lanes: number of data lanes
* @lane_polarities: polarity of the lanes. The order is the same of
* the physical lanes.
*/
struct v4l2_mbus_config_mipi_csi2 {
unsigned int flags;
unsigned char data_lanes[V4L2_MBUS_CSI2_MAX_DATA_LANES];
unsigned char clock_lane;
unsigned char num_data_lanes;
bool lane_polarities[1 + V4L2_MBUS_CSI2_MAX_DATA_LANES];
};
/**
* struct v4l2_mbus_config_parallel - parallel data bus configuration
* @flags: media bus (V4L2_MBUS_*) flags
* @bus_width: bus width in bits
* @data_shift: data shift in bits
*/
struct v4l2_mbus_config_parallel {
unsigned int flags;
unsigned char bus_width;
unsigned char data_shift;
};
/**
* struct v4l2_mbus_config_mipi_csi1 - CSI-1/CCP2 data bus configuration
* @clock_inv: polarity of clock/strobe signal
* false - not inverted, true - inverted
* @strobe: false - data/clock, true - data/strobe
* @lane_polarity: the polarities of the clock (index 0) and data lanes
* index (1)
* @data_lane: the number of the data lane
* @clock_lane: the number of the clock lane
*/
struct v4l2_mbus_config_mipi_csi1 {
unsigned char clock_inv:1;
unsigned char strobe:1;
bool lane_polarity[2];
unsigned char data_lane;
unsigned char clock_lane;
};
/**
* enum v4l2_mbus_type - media bus type
* @V4L2_MBUS_UNKNOWN: unknown bus type, no V4L2 mediabus configuration
* @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync
* @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can
* also be used for BT.1120
* @V4L2_MBUS_CSI1: MIPI CSI-1 serial interface
* @V4L2_MBUS_CCP2: CCP2 (Compact Camera Port 2)
* @V4L2_MBUS_CSI2_DPHY: MIPI CSI-2 serial interface, with D-PHY
* @V4L2_MBUS_CSI2_CPHY: MIPI CSI-2 serial interface, with C-PHY
* @V4L2_MBUS_INVALID: invalid bus type (keep as last)
*/
enum v4l2_mbus_type {
V4L2_MBUS_UNKNOWN,
V4L2_MBUS_PARALLEL,
V4L2_MBUS_BT656,
V4L2_MBUS_CSI1,
V4L2_MBUS_CCP2,
V4L2_MBUS_CSI2_DPHY,
V4L2_MBUS_CSI2_CPHY,
V4L2_MBUS_INVALID,
};
/**
* struct v4l2_mbus_config - media bus configuration
* @type: interface type
* @bus: bus configuration data structure
* @bus.parallel: embedded &struct v4l2_mbus_config_parallel.
* Used if the bus is parallel or BT.656.
* @bus.mipi_csi1: embedded &struct v4l2_mbus_config_mipi_csi1.
* Used if the bus is MIPI Alliance's Camera Serial
* Interface version 1 (MIPI CSI1) or Standard
* Mobile Imaging Architecture's Compact Camera Port 2
* (SMIA CCP2).
* @bus.mipi_csi2: embedded &struct v4l2_mbus_config_mipi_csi2.
* Used if the bus is MIPI Alliance's Camera Serial
* Interface version 2 (MIPI CSI2).
*/
struct v4l2_mbus_config {
enum v4l2_mbus_type type;
union {
struct v4l2_mbus_config_parallel parallel;
struct v4l2_mbus_config_mipi_csi1 mipi_csi1;
struct v4l2_mbus_config_mipi_csi2 mipi_csi2;
} bus;
};
/**
* v4l2_fill_pix_format - Ancillary routine that fills a &struct
* v4l2_pix_format fields from a &struct v4l2_mbus_framefmt.
*
* @pix_fmt: pointer to &struct v4l2_pix_format to be filled
* @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
*/
static inline void
v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
{
pix_fmt->width = mbus_fmt->width;
pix_fmt->height = mbus_fmt->height;
pix_fmt->field = mbus_fmt->field;
pix_fmt->colorspace = mbus_fmt->colorspace;
pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
pix_fmt->quantization = mbus_fmt->quantization;
pix_fmt->xfer_func = mbus_fmt->xfer_func;
}
/**
* v4l2_fill_mbus_format - Ancillary routine that fills a &struct
* v4l2_mbus_framefmt from a &struct v4l2_pix_format and a
* data format code.
*
* @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
* @pix_fmt: pointer to &struct v4l2_pix_format to be used as model
* @code: data format code (from &enum v4l2_mbus_pixelcode)
*/
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format *pix_fmt,
u32 code)
{
mbus_fmt->width = pix_fmt->width;
mbus_fmt->height = pix_fmt->height;
mbus_fmt->field = pix_fmt->field;
mbus_fmt->colorspace = pix_fmt->colorspace;
mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc;
mbus_fmt->quantization = pix_fmt->quantization;
mbus_fmt->xfer_func = pix_fmt->xfer_func;
mbus_fmt->code = code;
}
/**
* v4l2_fill_pix_format_mplane - Ancillary routine that fills a &struct
* v4l2_pix_format_mplane fields from a media bus structure.
*
* @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be filled
* @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be used as model
*/
static inline void
v4l2_fill_pix_format_mplane(struct v4l2_pix_format_mplane *pix_mp_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
{
pix_mp_fmt->width = mbus_fmt->width;
pix_mp_fmt->height = mbus_fmt->height;
pix_mp_fmt->field = mbus_fmt->field;
pix_mp_fmt->colorspace = mbus_fmt->colorspace;
pix_mp_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc;
pix_mp_fmt->quantization = mbus_fmt->quantization;
pix_mp_fmt->xfer_func = mbus_fmt->xfer_func;
}
/**
* v4l2_fill_mbus_format_mplane - Ancillary routine that fills a &struct
* v4l2_mbus_framefmt from a &struct v4l2_pix_format_mplane.
*
* @mbus_fmt: pointer to &struct v4l2_mbus_framefmt to be filled
* @pix_mp_fmt: pointer to &struct v4l2_pix_format_mplane to be used as model
*/
static inline void
v4l2_fill_mbus_format_mplane(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format_mplane *pix_mp_fmt)
{
mbus_fmt->width = pix_mp_fmt->width;
mbus_fmt->height = pix_mp_fmt->height;
mbus_fmt->field = pix_mp_fmt->field;
mbus_fmt->colorspace = pix_mp_fmt->colorspace;
mbus_fmt->ycbcr_enc = pix_mp_fmt->ycbcr_enc;
mbus_fmt->quantization = pix_mp_fmt->quantization;
mbus_fmt->xfer_func = pix_mp_fmt->xfer_func;
}
#endif
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| davinci | Folder | 0755 |
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| drv-intf | Folder | 0755 |
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| i2c | Folder | 0755 |
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| tpg | Folder | 0755 |
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| cec-notifier.h | File | 5.03 KB | 0644 |
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| cec-pin.h | File | 2.79 KB | 0644 |
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| cec.h | File | 17.87 KB | 0644 |
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| demux.h | File | 22.69 KB | 0644 |
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| dmxdev.h | File | 5.87 KB | 0644 |
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| dvb-usb-ids.h | File | 19.46 KB | 0644 |
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| dvb_ca_en50221.h | File | 4.35 KB | 0644 |
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| dvb_demux.h | File | 10.77 KB | 0644 |
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| dvb_frontend.h | File | 30.03 KB | 0644 |
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| dvb_net.h | File | 2.25 KB | 0644 |
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| dvb_ringbuffer.h | File | 8.32 KB | 0644 |
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| dvb_vb2.h | File | 7.65 KB | 0644 |
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| dvbdev.h | File | 14.43 KB | 0644 |
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| frame_vector.h | File | 1.42 KB | 0644 |
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| hevc-ctrls.h | File | 9.81 KB | 0644 |
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| imx.h | File | 190 B | 0644 |
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| jpeg.h | File | 500 B | 0644 |
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| media-dev-allocator.h | File | 2.21 KB | 0644 |
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| media-device.h | File | 17.65 KB | 0644 |
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| media-devnode.h | File | 5.29 KB | 0644 |
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| media-entity.h | File | 47.11 KB | 0644 |
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| media-request.h | File | 11.96 KB | 0644 |
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| rc-core.h | File | 12.27 KB | 0644 |
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| rc-map.h | File | 14.41 KB | 0644 |
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| tuner.h | File | 8.4 KB | 0644 |
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| tveeprom.h | File | 3.3 KB | 0644 |
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| v4l2-async.h | File | 11.27 KB | 0644 |
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| v4l2-common.h | File | 19.96 KB | 0644 |
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| v4l2-ctrls.h | File | 54.21 KB | 0644 |
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| v4l2-dev.h | File | 20.11 KB | 0644 |
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| v4l2-device.h | File | 18.61 KB | 0644 |
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| v4l2-dv-timings.h | File | 9.08 KB | 0644 |
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| v4l2-event.h | File | 6.01 KB | 0644 |
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| v4l2-fh.h | File | 4.22 KB | 0644 |
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| v4l2-flash-led-class.h | File | 5.75 KB | 0644 |
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| v4l2-fwnode.h | File | 18.25 KB | 0644 |
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| v4l2-h264.h | File | 2.85 KB | 0644 |
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| v4l2-image-sizes.h | File | 827 B | 0644 |
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| v4l2-ioctl.h | File | 33.52 KB | 0644 |
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| v4l2-jpeg.h | File | 5.08 KB | 0644 |
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| v4l2-mc.h | File | 7.78 KB | 0644 |
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| v4l2-mediabus.h | File | 8.65 KB | 0644 |
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| v4l2-mem2mem.h | File | 29.4 KB | 0644 |
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| v4l2-rect.h | File | 5.71 KB | 0644 |
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| v4l2-subdev.h | File | 73.22 KB | 0644 |
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| videobuf-core.h | File | 6.81 KB | 0644 |
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| videobuf-dma-contig.h | File | 909 B | 0644 |
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| videobuf-dma-sg.h | File | 2.79 KB | 0644 |
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| videobuf-vmalloc.h | File | 1.14 KB | 0644 |
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| videobuf2-core.h | File | 51.92 KB | 0644 |
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| videobuf2-dma-contig.h | File | 883 B | 0644 |
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| videobuf2-dma-sg.h | File | 698 B | 0644 |
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| videobuf2-dvb.h | File | 1.81 KB | 0644 |
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| videobuf2-memops.h | File | 1.09 KB | 0644 |
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| videobuf2-v4l2.h | File | 14.48 KB | 0644 |
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| videobuf2-vmalloc.h | File | 509 B | 0644 |
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| vsp1.h | File | 3.57 KB | 0644 |
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