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media: v4l2: extend the CSC API to subdevice.
This patch extends the CSC API in video devices to be supported also on sub-devices. The flag V4L2_MBUS_FRAMEFMT_SET_CSC set by the application when calling VIDIOC_SUBDEV_S_FMT ioctl. The flags: V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE, V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC, V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC/V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION are set by the driver in the VIDIOC_SUBDEV_ENUM_MBUS_CODE ioctl. New 'flags' fields were added to the structs v4l2_subdev_mbus_code_enum, v4l2_mbus_framefmt which are borrowed from the 'reserved' field The patch also replaces the 'ycbcr_enc' field in 'struct v4l2_mbus_framefmt' with a union that includes 'hsv_enc' Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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4 changed files with 157 additions and 14 deletions
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@ -65,19 +65,27 @@ struct v4l2_subdev_crop {
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__u32 reserved[8];
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};
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#define V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE 0x00000001
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#define V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC 0x00000002
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#define V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC 0x00000004
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#define V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC
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#define V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION 0x00000008
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/**
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* struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
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* @pad: pad number, as reported by the media API
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* @index: format index during enumeration
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* @code: format code (MEDIA_BUS_FMT_ definitions)
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* @which: format type (from enum v4l2_subdev_format_whence)
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* @flags: flags set by the driver, (V4L2_SUBDEV_MBUS_CODE_*)
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*/
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struct v4l2_subdev_mbus_code_enum {
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__u32 pad;
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__u32 index;
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__u32 code;
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__u32 which;
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__u32 reserved[8];
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__u32 flags;
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__u32 reserved[7];
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};
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/**
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