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344 lines
14 KiB
344 lines
14 KiB
/* |
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* |
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* V 4 L 2 D R I V E R H E L P E R A P I |
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* |
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* Moved from videodev2.h |
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* |
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* Some commonly needed functions for drivers (v4l2-common.o module) |
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*/ |
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#ifndef _V4L2_IOCTL_H |
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#define _V4L2_IOCTL_H |
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#include <linux/poll.h> |
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#include <linux/fs.h> |
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#include <linux/mutex.h> |
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#include <linux/compiler.h> /* need __user */ |
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#include <linux/videodev2.h> |
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struct v4l2_fh; |
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struct v4l2_ioctl_ops { |
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/* ioctl callbacks */ |
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/* VIDIOC_QUERYCAP handler */ |
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int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); |
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/* VIDIOC_ENUM_FMT handlers */ |
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int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_sdr_cap) (struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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int (*vidioc_enum_fmt_sdr_out) (struct file *file, void *fh, |
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struct v4l2_fmtdesc *f); |
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/* VIDIOC_G_FMT handlers */ |
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int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_sdr_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_g_fmt_sdr_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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/* VIDIOC_S_FMT handlers */ |
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int (*vidioc_s_fmt_vid_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vid_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vbi_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vbi_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_sdr_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_s_fmt_sdr_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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/* VIDIOC_TRY_FMT handlers */ |
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int (*vidioc_try_fmt_vid_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vid_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vbi_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vbi_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_sdr_cap) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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int (*vidioc_try_fmt_sdr_out) (struct file *file, void *fh, |
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struct v4l2_format *f); |
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/* Buffer handlers */ |
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int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b); |
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int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b); |
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int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b); |
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int (*vidioc_expbuf) (struct file *file, void *fh, |
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struct v4l2_exportbuffer *e); |
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int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b); |
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int (*vidioc_create_bufs)(struct file *file, void *fh, struct v4l2_create_buffers *b); |
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int (*vidioc_prepare_buf)(struct file *file, void *fh, struct v4l2_buffer *b); |
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int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i); |
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int (*vidioc_g_fbuf) (struct file *file, void *fh, |
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struct v4l2_framebuffer *a); |
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int (*vidioc_s_fbuf) (struct file *file, void *fh, |
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const struct v4l2_framebuffer *a); |
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/* Stream on/off */ |
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int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i); |
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int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i); |
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/* Standard handling |
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ENUMSTD is handled by videodev.c |
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*/ |
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int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm); |
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int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id norm); |
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int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a); |
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/* Input handling */ |
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int (*vidioc_enum_input)(struct file *file, void *fh, |
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struct v4l2_input *inp); |
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int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i); |
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int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i); |
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/* Output handling */ |
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int (*vidioc_enum_output) (struct file *file, void *fh, |
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struct v4l2_output *a); |
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int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i); |
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int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i); |
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/* Control handling */ |
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int (*vidioc_queryctrl) (struct file *file, void *fh, |
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struct v4l2_queryctrl *a); |
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int (*vidioc_query_ext_ctrl) (struct file *file, void *fh, |
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struct v4l2_query_ext_ctrl *a); |
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int (*vidioc_g_ctrl) (struct file *file, void *fh, |
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struct v4l2_control *a); |
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int (*vidioc_s_ctrl) (struct file *file, void *fh, |
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struct v4l2_control *a); |
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int (*vidioc_g_ext_ctrls) (struct file *file, void *fh, |
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struct v4l2_ext_controls *a); |
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int (*vidioc_s_ext_ctrls) (struct file *file, void *fh, |
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struct v4l2_ext_controls *a); |
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int (*vidioc_try_ext_ctrls) (struct file *file, void *fh, |
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struct v4l2_ext_controls *a); |
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int (*vidioc_querymenu) (struct file *file, void *fh, |
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struct v4l2_querymenu *a); |
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/* Audio ioctls */ |
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int (*vidioc_enumaudio) (struct file *file, void *fh, |
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struct v4l2_audio *a); |
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int (*vidioc_g_audio) (struct file *file, void *fh, |
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struct v4l2_audio *a); |
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int (*vidioc_s_audio) (struct file *file, void *fh, |
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const struct v4l2_audio *a); |
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/* Audio out ioctls */ |
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int (*vidioc_enumaudout) (struct file *file, void *fh, |
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struct v4l2_audioout *a); |
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int (*vidioc_g_audout) (struct file *file, void *fh, |
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struct v4l2_audioout *a); |
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int (*vidioc_s_audout) (struct file *file, void *fh, |
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const struct v4l2_audioout *a); |
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int (*vidioc_g_modulator) (struct file *file, void *fh, |
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struct v4l2_modulator *a); |
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int (*vidioc_s_modulator) (struct file *file, void *fh, |
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const struct v4l2_modulator *a); |
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/* Crop ioctls */ |
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int (*vidioc_cropcap) (struct file *file, void *fh, |
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struct v4l2_cropcap *a); |
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int (*vidioc_g_crop) (struct file *file, void *fh, |
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struct v4l2_crop *a); |
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int (*vidioc_s_crop) (struct file *file, void *fh, |
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const struct v4l2_crop *a); |
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int (*vidioc_g_selection) (struct file *file, void *fh, |
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struct v4l2_selection *s); |
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int (*vidioc_s_selection) (struct file *file, void *fh, |
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struct v4l2_selection *s); |
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/* Compression ioctls */ |
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int (*vidioc_g_jpegcomp) (struct file *file, void *fh, |
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struct v4l2_jpegcompression *a); |
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int (*vidioc_s_jpegcomp) (struct file *file, void *fh, |
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const struct v4l2_jpegcompression *a); |
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int (*vidioc_g_enc_index) (struct file *file, void *fh, |
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struct v4l2_enc_idx *a); |
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int (*vidioc_encoder_cmd) (struct file *file, void *fh, |
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struct v4l2_encoder_cmd *a); |
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int (*vidioc_try_encoder_cmd) (struct file *file, void *fh, |
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struct v4l2_encoder_cmd *a); |
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int (*vidioc_decoder_cmd) (struct file *file, void *fh, |
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struct v4l2_decoder_cmd *a); |
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int (*vidioc_try_decoder_cmd) (struct file *file, void *fh, |
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struct v4l2_decoder_cmd *a); |
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/* Stream type-dependent parameter ioctls */ |
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int (*vidioc_g_parm) (struct file *file, void *fh, |
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struct v4l2_streamparm *a); |
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int (*vidioc_s_parm) (struct file *file, void *fh, |
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struct v4l2_streamparm *a); |
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/* Tuner ioctls */ |
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int (*vidioc_g_tuner) (struct file *file, void *fh, |
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struct v4l2_tuner *a); |
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int (*vidioc_s_tuner) (struct file *file, void *fh, |
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const struct v4l2_tuner *a); |
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int (*vidioc_g_frequency) (struct file *file, void *fh, |
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struct v4l2_frequency *a); |
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int (*vidioc_s_frequency) (struct file *file, void *fh, |
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const struct v4l2_frequency *a); |
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int (*vidioc_enum_freq_bands) (struct file *file, void *fh, |
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struct v4l2_frequency_band *band); |
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/* Sliced VBI cap */ |
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int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh, |
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struct v4l2_sliced_vbi_cap *a); |
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/* Log status ioctl */ |
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int (*vidioc_log_status) (struct file *file, void *fh); |
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int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh, |
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const struct v4l2_hw_freq_seek *a); |
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/* Debugging ioctls */ |
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#ifdef CONFIG_VIDEO_ADV_DEBUG |
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int (*vidioc_g_register) (struct file *file, void *fh, |
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struct v4l2_dbg_register *reg); |
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int (*vidioc_s_register) (struct file *file, void *fh, |
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const struct v4l2_dbg_register *reg); |
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int (*vidioc_g_chip_info) (struct file *file, void *fh, |
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struct v4l2_dbg_chip_info *chip); |
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#endif |
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int (*vidioc_enum_framesizes) (struct file *file, void *fh, |
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struct v4l2_frmsizeenum *fsize); |
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int (*vidioc_enum_frameintervals) (struct file *file, void *fh, |
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struct v4l2_frmivalenum *fival); |
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/* DV Timings IOCTLs */ |
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int (*vidioc_s_dv_timings) (struct file *file, void *fh, |
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struct v4l2_dv_timings *timings); |
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int (*vidioc_g_dv_timings) (struct file *file, void *fh, |
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struct v4l2_dv_timings *timings); |
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int (*vidioc_query_dv_timings) (struct file *file, void *fh, |
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struct v4l2_dv_timings *timings); |
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int (*vidioc_enum_dv_timings) (struct file *file, void *fh, |
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struct v4l2_enum_dv_timings *timings); |
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int (*vidioc_dv_timings_cap) (struct file *file, void *fh, |
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struct v4l2_dv_timings_cap *cap); |
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int (*vidioc_g_edid) (struct file *file, void *fh, struct v4l2_edid *edid); |
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int (*vidioc_s_edid) (struct file *file, void *fh, struct v4l2_edid *edid); |
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int (*vidioc_subscribe_event) (struct v4l2_fh *fh, |
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const struct v4l2_event_subscription *sub); |
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int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, |
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const struct v4l2_event_subscription *sub); |
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/* For other private ioctls */ |
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long (*vidioc_default) (struct file *file, void *fh, |
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bool valid_prio, unsigned int cmd, void *arg); |
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}; |
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/* v4l debugging and diagnostics */ |
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/* Device debug flags to be used with the video device debug attribute */ |
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/* Just log the ioctl name + error code */ |
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#define V4L2_DEV_DEBUG_IOCTL 0x01 |
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/* Log the ioctl name arguments + error code */ |
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#define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 |
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/* Log the file operations open, release, mmap and get_unmapped_area */ |
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#define V4L2_DEV_DEBUG_FOP 0x04 |
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/* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ |
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#define V4L2_DEV_DEBUG_STREAMING 0x08 |
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/* Log poll() */ |
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#define V4L2_DEV_DEBUG_POLL 0x10 |
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/* Video standard functions */ |
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extern const char *v4l2_norm_to_name(v4l2_std_id id); |
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extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); |
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extern int v4l2_video_std_construct(struct v4l2_standard *vs, |
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int id, const char *name); |
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/* Prints the ioctl in a human-readable format. If prefix != NULL, |
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then do printk(KERN_DEBUG "%s: ", prefix) first. */ |
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extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd); |
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/* Internal use only: get the mutex (if any) that we need to lock for the |
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given command. */ |
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struct video_device; |
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extern struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd); |
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/* names for fancy debug output */ |
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extern const char *v4l2_field_names[]; |
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extern const char *v4l2_type_names[]; |
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#ifdef CONFIG_COMPAT |
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/* 32 Bits compatibility layer for 64 bits processors */ |
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extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, |
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unsigned long arg); |
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#endif |
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typedef long (*v4l2_kioctl)(struct file *file, |
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unsigned int cmd, void *arg); |
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/* Include support for obsoleted stuff */ |
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extern long video_usercopy(struct file *file, unsigned int cmd, |
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unsigned long arg, v4l2_kioctl func); |
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/* Standard handlers for V4L ioctl's */ |
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extern long video_ioctl2(struct file *file, |
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unsigned int cmd, unsigned long arg); |
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#endif /* _V4L2_IOCTL_H */
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