181 lines
6.2 KiB
C
181 lines
6.2 KiB
C
/*
|
|
* Media Bus API header
|
|
*
|
|
* Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef V4L2_MEDIABUS_H
|
|
#define V4L2_MEDIABUS_H
|
|
|
|
#include <linux/v4l2-mediabus.h>
|
|
#include <linux/bitops.h>
|
|
|
|
|
|
/* Parallel flags */
|
|
/*
|
|
* Can the client run 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 */
|
|
/* How many lanes the client can use */
|
|
#define V4L2_MBUS_CSI2_1_LANE BIT(0)
|
|
#define V4L2_MBUS_CSI2_2_LANE BIT(1)
|
|
#define V4L2_MBUS_CSI2_3_LANE BIT(2)
|
|
#define V4L2_MBUS_CSI2_4_LANE BIT(3)
|
|
/* On which channels it can send video data */
|
|
#define V4L2_MBUS_CSI2_CHANNEL_0 BIT(4)
|
|
#define V4L2_MBUS_CSI2_CHANNEL_1 BIT(5)
|
|
#define V4L2_MBUS_CSI2_CHANNEL_2 BIT(6)
|
|
#define V4L2_MBUS_CSI2_CHANNEL_3 BIT(7)
|
|
/* Does it support only continuous or also non-continuous clock mode */
|
|
#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK BIT(8)
|
|
#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK BIT(9)
|
|
|
|
#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \
|
|
V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
|
|
#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \
|
|
V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3)
|
|
|
|
/**
|
|
* enum v4l2_mbus_type - media bus type
|
|
* @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: MIPI CSI-2 serial interface
|
|
*/
|
|
enum v4l2_mbus_type {
|
|
V4L2_MBUS_PARALLEL,
|
|
V4L2_MBUS_BT656,
|
|
V4L2_MBUS_CSI1,
|
|
V4L2_MBUS_CCP2,
|
|
V4L2_MBUS_CSI2,
|
|
};
|
|
|
|
/**
|
|
* struct v4l2_mbus_config - media bus configuration
|
|
* @type: in: interface type
|
|
* @flags: in / out: configuration flags, depending on @type
|
|
*/
|
|
struct v4l2_mbus_config {
|
|
enum v4l2_mbus_type type;
|
|
unsigned int flags;
|
|
};
|
|
|
|
/**
|
|
* 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_pix_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 - 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_pix_format - 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
|