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116 lines
3.9 KiB
116 lines
3.9 KiB
/* |
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* Media Bus API header |
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* |
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* Copyright (C) 2009, Guennadi Liakhovetski <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef V4L2_MEDIABUS_H |
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#define V4L2_MEDIABUS_H |
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#include <linux/v4l2-mediabus.h> |
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/* Parallel flags */ |
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/* |
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* Can the client run in master or in slave mode. By "Master mode" an operation |
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* mode is meant, when the client (e.g., a camera sensor) is producing |
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* horizontal and vertical synchronisation. In "Slave mode" the host is |
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* providing these signals to the slave. |
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*/ |
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#define V4L2_MBUS_MASTER (1 << 0) |
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#define V4L2_MBUS_SLAVE (1 << 1) |
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/* |
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* Signal polarity flags |
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* Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused |
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* V4L2_MBUS_[HV]SYNC* flags should be also used for specifying |
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* configuration of hardware that uses [HV]REF signals |
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*/ |
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#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2) |
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#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3) |
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#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4) |
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#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5) |
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#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6) |
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#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7) |
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#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8) |
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#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9) |
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/* FIELD = 0/1 - Field1 (odd)/Field2 (even) */ |
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#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10) |
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/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */ |
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#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11) |
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/* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */ |
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#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1 << 12) |
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#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1 << 13) |
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/* Serial flags */ |
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/* How many lanes the client can use */ |
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#define V4L2_MBUS_CSI2_1_LANE (1 << 0) |
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#define V4L2_MBUS_CSI2_2_LANE (1 << 1) |
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#define V4L2_MBUS_CSI2_3_LANE (1 << 2) |
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#define V4L2_MBUS_CSI2_4_LANE (1 << 3) |
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/* On which channels it can send video data */ |
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#define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4) |
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#define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5) |
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#define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6) |
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#define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7) |
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/* Does it support only continuous or also non-continuous clock mode */ |
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#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8) |
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#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9) |
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#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \ |
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V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE) |
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#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \ |
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V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3) |
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/** |
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* enum v4l2_mbus_type - media bus type |
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* @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync |
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* @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can |
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* also be used for BT.1120 |
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* @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface |
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*/ |
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enum v4l2_mbus_type { |
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V4L2_MBUS_PARALLEL, |
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V4L2_MBUS_BT656, |
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V4L2_MBUS_CSI2, |
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}; |
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/** |
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* struct v4l2_mbus_config - media bus configuration |
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* @type: in: interface type |
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* @flags: in / out: configuration flags, depending on @type |
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*/ |
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struct v4l2_mbus_config { |
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enum v4l2_mbus_type type; |
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unsigned int flags; |
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}; |
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static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, |
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const struct v4l2_mbus_framefmt *mbus_fmt) |
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{ |
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pix_fmt->width = mbus_fmt->width; |
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pix_fmt->height = mbus_fmt->height; |
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pix_fmt->field = mbus_fmt->field; |
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pix_fmt->colorspace = mbus_fmt->colorspace; |
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pix_fmt->ycbcr_enc = mbus_fmt->ycbcr_enc; |
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pix_fmt->quantization = mbus_fmt->quantization; |
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pix_fmt->xfer_func = mbus_fmt->xfer_func; |
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} |
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static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt, |
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const struct v4l2_pix_format *pix_fmt, |
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u32 code) |
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{ |
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mbus_fmt->width = pix_fmt->width; |
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mbus_fmt->height = pix_fmt->height; |
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mbus_fmt->field = pix_fmt->field; |
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mbus_fmt->colorspace = pix_fmt->colorspace; |
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mbus_fmt->ycbcr_enc = pix_fmt->ycbcr_enc; |
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mbus_fmt->quantization = pix_fmt->quantization; |
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mbus_fmt->xfer_func = pix_fmt->xfer_func; |
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mbus_fmt->code = code; |
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} |
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#endif
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