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v4l2-ioctl.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * * V 4 L 2 D R I V E R H E L P E R A P I * * Moved from videodev2.h * * Some commonly needed functions for drivers (v4l2-common.o module) */ #ifndef _V4L2_IOCTL_H #define _V4L2_IOCTL_H #include <linux/poll.h> #include <linux/fs.h> #include <linux/mutex.h> #include <linux/sched/signal.h> #include <linux/compiler.h> /* need __user */ #include <linux/videodev2.h> struct v4l2_fh; /** * struct v4l2_ioctl_ops - describe operations for each V4L2 ioctl * * @vidioc_querycap: pointer to the function that implements * :ref:`VIDIOC_QUERYCAP <vidioc_querycap>` ioctl * @vidioc_enum_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for video capture in single and multi plane mode * @vidioc_enum_fmt_vid_overlay: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for video overlay * @vidioc_enum_fmt_vid_out: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for video output in single and multi plane mode * @vidioc_enum_fmt_sdr_cap: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for Software Defined Radio capture * @vidioc_enum_fmt_sdr_out: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for Software Defined Radio output * @vidioc_enum_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for metadata capture * @vidioc_enum_fmt_meta_out: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for metadata output * @vidioc_g_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode * @vidioc_g_fmt_vid_overlay: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay * @vidioc_g_fmt_vid_out: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out * in single plane mode * @vidioc_g_fmt_vid_out_overlay: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video overlay output * @vidioc_g_fmt_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture * @vidioc_g_fmt_vbi_out: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output * @vidioc_g_fmt_sliced_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture * @vidioc_g_fmt_sliced_vbi_out: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output * @vidioc_g_fmt_vid_cap_mplane: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture * in multiple plane mode * @vidioc_g_fmt_vid_out_mplane: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video out * in multiplane plane mode * @vidioc_g_fmt_sdr_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio capture * @vidioc_g_fmt_sdr_out: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio output * @vidioc_g_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture * @vidioc_g_fmt_meta_out: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_s_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode * @vidioc_s_fmt_vid_overlay: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay * @vidioc_s_fmt_vid_out: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out * in single plane mode * @vidioc_s_fmt_vid_out_overlay: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video overlay output * @vidioc_s_fmt_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture * @vidioc_s_fmt_vbi_out: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output * @vidioc_s_fmt_sliced_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI capture * @vidioc_s_fmt_sliced_vbi_out: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output * @vidioc_s_fmt_vid_cap_mplane: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture * in multiple plane mode * @vidioc_s_fmt_vid_out_mplane: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video out * in multiplane plane mode * @vidioc_s_fmt_sdr_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio capture * @vidioc_s_fmt_sdr_out: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio output * @vidioc_s_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture * @vidioc_s_fmt_meta_out: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_try_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode * @vidioc_try_fmt_vid_overlay: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay * @vidioc_try_fmt_vid_out: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out * in single plane mode * @vidioc_try_fmt_vid_out_overlay: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video overlay * output * @vidioc_try_fmt_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI capture * @vidioc_try_fmt_vbi_out: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for raw VBI output * @vidioc_try_fmt_sliced_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI * capture * @vidioc_try_fmt_sliced_vbi_out: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for sliced VBI output * @vidioc_try_fmt_vid_cap_mplane: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture * in multiple plane mode * @vidioc_try_fmt_vid_out_mplane: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video out * in multiplane plane mode * @vidioc_try_fmt_sdr_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio capture * @vidioc_try_fmt_sdr_out: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for Software Defined * Radio output * @vidioc_try_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture * @vidioc_try_fmt_meta_out: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_reqbufs: pointer to the function that implements * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl * @vidioc_querybuf: pointer to the function that implements * :ref:`VIDIOC_QUERYBUF <vidioc_querybuf>` ioctl * @vidioc_qbuf: pointer to the function that implements * :ref:`VIDIOC_QBUF <vidioc_qbuf>` ioctl * @vidioc_expbuf: pointer to the function that implements * :ref:`VIDIOC_EXPBUF <vidioc_expbuf>` ioctl * @vidioc_dqbuf: pointer to the function that implements * :ref:`VIDIOC_DQBUF <vidioc_qbuf>` ioctl * @vidioc_create_bufs: pointer to the function that implements * :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl * @vidioc_prepare_buf: pointer to the function that implements * :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl * @vidioc_overlay: pointer to the function that implements * :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl * @vidioc_g_fbuf: pointer to the function that implements * :ref:`VIDIOC_G_FBUF <vidioc_g_fbuf>` ioctl * @vidioc_s_fbuf: pointer to the function that implements * :ref:`VIDIOC_S_FBUF <vidioc_g_fbuf>` ioctl * @vidioc_streamon: pointer to the function that implements * :ref:`VIDIOC_STREAMON <vidioc_streamon>` ioctl * @vidioc_streamoff: pointer to the function that implements * :ref:`VIDIOC_STREAMOFF <vidioc_streamon>` ioctl * @vidioc_g_std: pointer to the function that implements * :ref:`VIDIOC_G_STD <vidioc_g_std>` ioctl * @vidioc_s_std: pointer to the function that implements * :ref:`VIDIOC_S_STD <vidioc_g_std>` ioctl * @vidioc_querystd: pointer to the function that implements * :ref:`VIDIOC_QUERYSTD <vidioc_querystd>` ioctl * @vidioc_enum_input: pointer to the function that implements * :ref:`VIDIOC_ENUM_INPUT <vidioc_g_input>` ioctl * @vidioc_g_input: pointer to the function that implements * :ref:`VIDIOC_G_INPUT <vidioc_g_input>` ioctl * @vidioc_s_input: pointer to the function that implements * :ref:`VIDIOC_S_INPUT <vidioc_g_input>` ioctl * @vidioc_enum_output: pointer to the function that implements * :ref:`VIDIOC_ENUM_OUTPUT <vidioc_g_output>` ioctl * @vidioc_g_output: pointer to the function that implements * :ref:`VIDIOC_G_OUTPUT <vidioc_g_output>` ioctl * @vidioc_s_output: pointer to the function that implements * :ref:`VIDIOC_S_OUTPUT <vidioc_g_output>` ioctl * @vidioc_queryctrl: pointer to the function that implements * :ref:`VIDIOC_QUERYCTRL <vidioc_queryctrl>` ioctl * @vidioc_query_ext_ctrl: pointer to the function that implements * :ref:`VIDIOC_QUERY_EXT_CTRL <vidioc_queryctrl>` ioctl * @vidioc_g_ctrl: pointer to the function that implements * :ref:`VIDIOC_G_CTRL <vidioc_g_ctrl>` ioctl * @vidioc_s_ctrl: pointer to the function that implements * :ref:`VIDIOC_S_CTRL <vidioc_g_ctrl>` ioctl * @vidioc_g_ext_ctrls: pointer to the function that implements * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl * @vidioc_s_ext_ctrls: pointer to the function that implements * :ref:`VIDIOC_S_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl * @vidioc_try_ext_ctrls: pointer to the function that implements * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl * @vidioc_querymenu: pointer to the function that implements * :ref:`VIDIOC_QUERYMENU <vidioc_queryctrl>` ioctl * @vidioc_enumaudio: pointer to the function that implements * :ref:`VIDIOC_ENUMAUDIO <vidioc_enumaudio>` ioctl * @vidioc_g_audio: pointer to the function that implements * :ref:`VIDIOC_G_AUDIO <vidioc_g_audio>` ioctl * @vidioc_s_audio: pointer to the function that implements * :ref:`VIDIOC_S_AUDIO <vidioc_g_audio>` ioctl * @vidioc_enumaudout: pointer to the function that implements * :ref:`VIDIOC_ENUMAUDOUT <vidioc_enumaudout>` ioctl * @vidioc_g_audout: pointer to the function that implements * :ref:`VIDIOC_G_AUDOUT <vidioc_g_audout>` ioctl * @vidioc_s_audout: pointer to the function that implements * :ref:`VIDIOC_S_AUDOUT <vidioc_g_audout>` ioctl * @vidioc_g_modulator: pointer to the function that implements * :ref:`VIDIOC_G_MODULATOR <vidioc_g_modulator>` ioctl * @vidioc_s_modulator: pointer to the function that implements * :ref:`VIDIOC_S_MODULATOR <vidioc_g_modulator>` ioctl * @vidioc_g_pixelaspect: pointer to the function that implements * the pixelaspect part of the :ref:`VIDIOC_CROPCAP <vidioc_cropcap>` ioctl * @vidioc_g_selection: pointer to the function that implements * :ref:`VIDIOC_G_SELECTION <vidioc_g_selection>` ioctl * @vidioc_s_selection: pointer to the function that implements * :ref:`VIDIOC_S_SELECTION <vidioc_g_selection>` ioctl * @vidioc_g_jpegcomp: pointer to the function that implements * :ref:`VIDIOC_G_JPEGCOMP <vidioc_g_jpegcomp>` ioctl * @vidioc_s_jpegcomp: pointer to the function that implements * :ref:`VIDIOC_S_JPEGCOMP <vidioc_g_jpegcomp>` ioctl * @vidioc_g_enc_index: pointer to the function that implements * :ref:`VIDIOC_G_ENC_INDEX <vidioc_g_enc_index>` ioctl * @vidioc_encoder_cmd: pointer to the function that implements * :ref:`VIDIOC_ENCODER_CMD <vidioc_encoder_cmd>` ioctl * @vidioc_try_encoder_cmd: pointer to the function that implements * :ref:`VIDIOC_TRY_ENCODER_CMD <vidioc_encoder_cmd>` ioctl * @vidioc_decoder_cmd: pointer to the function that implements * :ref:`VIDIOC_DECODER_CMD <vidioc_decoder_cmd>` ioctl * @vidioc_try_decoder_cmd: pointer to the function that implements * :ref:`VIDIOC_TRY_DECODER_CMD <vidioc_decoder_cmd>` ioctl * @vidioc_g_parm: pointer to the function that implements * :ref:`VIDIOC_G_PARM <vidioc_g_parm>` ioctl * @vidioc_s_parm: pointer to the function that implements * :ref:`VIDIOC_S_PARM <vidioc_g_parm>` ioctl * @vidioc_g_tuner: pointer to the function that implements * :ref:`VIDIOC_G_TUNER <vidioc_g_tuner>` ioctl * @vidioc_s_tuner: pointer to the function that implements * :ref:`VIDIOC_S_TUNER <vidioc_g_tuner>` ioctl * @vidioc_g_frequency: pointer to the function that implements * :ref:`VIDIOC_G_FREQUENCY <vidioc_g_frequency>` ioctl * @vidioc_s_frequency: pointer to the function that implements * :ref:`VIDIOC_S_FREQUENCY <vidioc_g_frequency>` ioctl * @vidioc_enum_freq_bands: pointer to the function that implements * :ref:`VIDIOC_ENUM_FREQ_BANDS <vidioc_enum_freq_bands>` ioctl * @vidioc_g_sliced_vbi_cap: pointer to the function that implements * :ref:`VIDIOC_G_SLICED_VBI_CAP <vidioc_g_sliced_vbi_cap>` ioctl * @vidioc_log_status: pointer to the function that implements * :ref:`VIDIOC_LOG_STATUS <vidioc_log_status>` ioctl * @vidioc_s_hw_freq_seek: pointer to the function that implements * :ref:`VIDIOC_S_HW_FREQ_SEEK <vidioc_s_hw_freq_seek>` ioctl * @vidioc_g_register: pointer to the function that implements * :ref:`VIDIOC_DBG_G_REGISTER <vidioc_dbg_g_register>` ioctl * @vidioc_s_register: pointer to the function that implements * :ref:`VIDIOC_DBG_S_REGISTER <vidioc_dbg_g_register>` ioctl * @vidioc_g_chip_info: pointer to the function that implements * :ref:`VIDIOC_DBG_G_CHIP_INFO <vidioc_dbg_g_chip_info>` ioctl * @vidioc_enum_framesizes: pointer to the function that implements * :ref:`VIDIOC_ENUM_FRAMESIZES <vidioc_enum_framesizes>` ioctl * @vidioc_enum_frameintervals: pointer to the function that implements * :ref:`VIDIOC_ENUM_FRAMEINTERVALS <vidioc_enum_frameintervals>` ioctl * @vidioc_s_dv_timings: pointer to the function that implements * :ref:`VIDIOC_S_DV_TIMINGS <vidioc_g_dv_timings>` ioctl * @vidioc_g_dv_timings: pointer to the function that implements * :ref:`VIDIOC_G_DV_TIMINGS <vidioc_g_dv_timings>` ioctl * @vidioc_query_dv_timings: pointer to the function that implements * :ref:`VIDIOC_QUERY_DV_TIMINGS <vidioc_query_dv_timings>` ioctl * @vidioc_enum_dv_timings: pointer to the function that implements * :ref:`VIDIOC_ENUM_DV_TIMINGS <vidioc_enum_dv_timings>` ioctl * @vidioc_dv_timings_cap: pointer to the function that implements * :ref:`VIDIOC_DV_TIMINGS_CAP <vidioc_dv_timings_cap>` ioctl * @vidioc_g_edid: pointer to the function that implements * :ref:`VIDIOC_G_EDID <vidioc_g_edid>` ioctl * @vidioc_s_edid: pointer to the function that implements * :ref:`VIDIOC_S_EDID <vidioc_g_edid>` ioctl * @vidioc_subscribe_event: pointer to the function that implements * :ref:`VIDIOC_SUBSCRIBE_EVENT <vidioc_subscribe_event>` ioctl * @vidioc_unsubscribe_event: pointer to the function that implements * :ref:`VIDIOC_UNSUBSCRIBE_EVENT <vidioc_unsubscribe_event>` ioctl * @vidioc_default: pointed used to allow other ioctls */ struct v4l2_ioctl_ops { /* ioctl callbacks */ /* VIDIOC_QUERYCAP handler */ int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); /* VIDIOC_ENUM_FMT handlers */ int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_meta_out)(struct file *file, void *fh, struct v4l2_fmtdesc *f); /* VIDIOC_G_FMT handlers */ int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_g_fmt_meta_out)(struct file *file, void *fh, struct v4l2_format *f); /* VIDIOC_S_FMT handlers */ int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_s_fmt_meta_out)(struct file *file, void *fh, struct v4l2_format *f); /* VIDIOC_TRY_FMT handlers */ int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); int (*vidioc_try_fmt_meta_out)(struct file *file, void *fh, struct v4l2_format *f); /* Buffer handlers */ int (*vidioc_reqbufs)(struct file *file, void *fh, struct v4l2_requestbuffers *b); int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b); int (*vidioc_qbuf)(struct file *file, void *fh, struct v4l2_buffer *b); int (*vidioc_expbuf)(struct file *file, void *fh, struct v4l2_exportbuffer *e); int (*vidioc_dqbuf)(struct file *file, void *fh, struct v4l2_buffer *b); int (*vidioc_create_bufs)(struct file *file, void *fh, struct v4l2_create_buffers *b); int (*vidioc_prepare_buf)(struct file *file, void *fh, struct v4l2_buffer *b); int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i); int (*vidioc_g_fbuf)(struct file *file, void *fh, struct v4l2_framebuffer *a); int (*vidioc_s_fbuf)(struct file *file, void *fh, const struct v4l2_framebuffer *a); /* Stream on/off */ int (*vidioc_streamon)(struct file *file, void *fh, enum v4l2_buf_type i); int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i); /* * Standard handling * * Note: ENUMSTD is handled by videodev.c */ int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm); int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm); int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a); /* Input handling */ int (*vidioc_enum_input)(struct file *file, void *fh, struct v4l2_input *inp); int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i); int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i); /* Output handling */ int (*vidioc_enum_output)(struct file *file, void *fh, struct v4l2_output *a); int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i); int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i); /* Control handling */ int (*vidioc_queryctrl)(struct file *file, void *fh, struct v4l2_queryctrl *a); int (*vidioc_query_ext_ctrl)(struct file *file, void *fh, struct v4l2_query_ext_ctrl *a); int (*vidioc_g_ctrl)(struct file *file, void *fh, struct v4l2_control *a); int (*vidioc_s_ctrl)(struct file *file, void *fh, struct v4l2_control *a); int (*vidioc_g_ext_ctrls)(struct file *file, void *fh, struct v4l2_ext_controls *a); int (*vidioc_s_ext_ctrls)(struct file *file, void *fh, struct v4l2_ext_controls *a); int (*vidioc_try_ext_ctrls)(struct file *file, void *fh, struct v4l2_ext_controls *a); int (*vidioc_querymenu)(struct file *file, void *fh, struct v4l2_querymenu *a); /* Audio ioctls */ int (*vidioc_enumaudio)(struct file *file, void *fh, struct v4l2_audio *a); int (*vidioc_g_audio)(struct file *file, void *fh, struct v4l2_audio *a); int (*vidioc_s_audio)(struct file *file, void *fh, const struct v4l2_audio *a); /* Audio out ioctls */ int (*vidioc_enumaudout)(struct file *file, void *fh, struct v4l2_audioout *a); int (*vidioc_g_audout)(struct file *file, void *fh, struct v4l2_audioout *a); int (*vidioc_s_audout)(struct file *file, void *fh, const struct v4l2_audioout *a); int (*vidioc_g_modulator)(struct file *file, void *fh, struct v4l2_modulator *a); int (*vidioc_s_modulator)(struct file *file, void *fh, const struct v4l2_modulator *a); /* Crop ioctls */ int (*vidioc_g_pixelaspect)(struct file *file, void *fh, int buf_type, struct v4l2_fract *aspect); int (*vidioc_g_selection)(struct file *file, void *fh, struct v4l2_selection *s); int (*vidioc_s_selection)(struct file *file, void *fh, struct v4l2_selection *s); /* Compression ioctls */ int (*vidioc_g_jpegcomp)(struct file *file, void *fh, struct v4l2_jpegcompression *a); int (*vidioc_s_jpegcomp)(struct file *file, void *fh, const struct v4l2_jpegcompression *a); int (*vidioc_g_enc_index)(struct file *file, void *fh, struct v4l2_enc_idx *a); int (*vidioc_encoder_cmd)(struct file *file, void *fh, struct v4l2_encoder_cmd *a); int (*vidioc_try_encoder_cmd)(struct file *file, void *fh, struct v4l2_encoder_cmd *a); int (*vidioc_decoder_cmd)(struct file *file, void *fh, struct v4l2_decoder_cmd *a); int (*vidioc_try_decoder_cmd)(struct file *file, void *fh, struct v4l2_decoder_cmd *a); /* Stream type-dependent parameter ioctls */ int (*vidioc_g_parm)(struct file *file, void *fh, struct v4l2_streamparm *a); int (*vidioc_s_parm)(struct file *file, void *fh, struct v4l2_streamparm *a); /* Tuner ioctls */ int (*vidioc_g_tuner)(struct file *file, void *fh, struct v4l2_tuner *a); int (*vidioc_s_tuner)(struct file *file, void *fh, const struct v4l2_tuner *a); int (*vidioc_g_frequency)(struct file *file, void *fh, struct v4l2_frequency *a); int (*vidioc_s_frequency)(struct file *file, void *fh, const struct v4l2_frequency *a); int (*vidioc_enum_freq_bands)(struct file *file, void *fh, struct v4l2_frequency_band *band); /* Sliced VBI cap */ int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *a); /* Log status ioctl */ int (*vidioc_log_status)(struct file *file, void *fh); int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a); /* Debugging ioctls */ #ifdef CONFIG_VIDEO_ADV_DEBUG int (*vidioc_g_register)(struct file *file, void *fh, struct v4l2_dbg_register *reg); int (*vidioc_s_register)(struct file *file, void *fh, const struct v4l2_dbg_register *reg); int (*vidioc_g_chip_info)(struct file *file, void *fh, struct v4l2_dbg_chip_info *chip); #endif int (*vidioc_enum_framesizes)(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize); int (*vidioc_enum_frameintervals)(struct file *file, void *fh, struct v4l2_frmivalenum *fival); /* DV Timings IOCTLs */ int (*vidioc_s_dv_timings)(struct file *file, void *fh, struct v4l2_dv_timings *timings); int (*vidioc_g_dv_timings)(struct file *file, void *fh, struct v4l2_dv_timings *timings); int (*vidioc_query_dv_timings)(struct file *file, void *fh, struct v4l2_dv_timings *timings); int (*vidioc_enum_dv_timings)(struct file *file, void *fh, struct v4l2_enum_dv_timings *timings); int (*vidioc_dv_timings_cap)(struct file *file, void *fh, struct v4l2_dv_timings_cap *cap); int (*vidioc_g_edid)(struct file *file, void *fh, struct v4l2_edid *edid); int (*vidioc_s_edid)(struct file *file, void *fh, struct v4l2_edid *edid); int (*vidioc_subscribe_event)(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub); int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub); /* For other private ioctls */ long (*vidioc_default)(struct file *file, void *fh, bool valid_prio, unsigned int cmd, void *arg); }; /* v4l debugging and diagnostics */ /* Device debug flags to be used with the video device debug attribute */ /* Just log the ioctl name + error code */ #define V4L2_DEV_DEBUG_IOCTL 0x01 /* Log the ioctl name arguments + error code */ #define V4L2_DEV_DEBUG_IOCTL_ARG 0x02 /* Log the file operations open, release, mmap and get_unmapped_area */ #define V4L2_DEV_DEBUG_FOP 0x04 /* Log the read and write file operations and the VIDIOC_(D)QBUF ioctls */ #define V4L2_DEV_DEBUG_STREAMING 0x08 /* Log poll() */ #define V4L2_DEV_DEBUG_POLL 0x10 /* Log controls */ #define V4L2_DEV_DEBUG_CTRL 0x20 /* Video standard functions */ /** * v4l2_norm_to_name - Ancillary routine to analog TV standard name from its ID. * * @id: analog TV standard ID. * * Return: returns a string with the name of the analog TV standard. * If the standard is not found or if @id points to multiple standard, * it returns "Unknown". */ const char *v4l2_norm_to_name(v4l2_std_id id); /** * v4l2_video_std_frame_period - Ancillary routine that fills a * struct &v4l2_fract pointer with the default framerate fraction. * * @id: analog TV standard ID. * @frameperiod: struct &v4l2_fract pointer to be filled * */ void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); /** * v4l2_video_std_construct - Ancillary routine that fills in the fields of * a &v4l2_standard structure according to the @id parameter. * * @vs: struct &v4l2_standard pointer to be filled * @id: analog TV standard ID. * @name: name of the standard to be used * * .. note:: * * This ancillary routine is obsolete. Shouldn't be used on newer drivers. */ int v4l2_video_std_construct(struct v4l2_standard *vs, int id, const char *name); /** * v4l_video_std_enumstd - Ancillary routine that fills in the fields of * a &v4l2_standard structure according to the @id and @vs->index * parameters. * * @vs: struct &v4l2_standard pointer to be filled. * @id: analog TV standard ID. * */ int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id); /** * v4l_printk_ioctl - Ancillary routine that prints the ioctl in a * human-readable format. * * @prefix: prefix to be added at the ioctl prints. * @cmd: ioctl name * * .. note:: * * If prefix != %NULL, then it will issue a * ``printk(KERN_DEBUG "%s: ", prefix)`` first. */ void v4l_printk_ioctl(const char *prefix, unsigned int cmd); struct video_device; /* names for fancy debug output */ extern const char *v4l2_field_names[]; extern const char *v4l2_type_names[]; #ifdef CONFIG_COMPAT /** * v4l2_compat_ioctl32 -32 Bits compatibility layer for 64 bits processors * * @file: Pointer to struct &file. * @cmd: Ioctl name. * @arg: Ioctl argument. */ long int v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg); #endif unsigned int v4l2_compat_translate_cmd(unsigned int cmd); int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd); int v4l2_compat_put_user(void __user *arg, void *parg, unsigned int cmd); int v4l2_compat_get_array_args(struct file *file, void *mbuf, void __user *user_ptr, size_t array_size, unsigned int cmd, void *arg); int v4l2_compat_put_array_args(struct file *file, void __user *user_ptr, void *mbuf, size_t array_size, unsigned int cmd, void *arg); /** * typedef v4l2_kioctl - Typedef used to pass an ioctl handler. * * @file: Pointer to struct &file. * @cmd: Ioctl name. * @arg: Ioctl argument. */ typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); /** * video_usercopy - copies data from/to userspace memory when an ioctl is * issued. * * @file: Pointer to struct &file. * @cmd: Ioctl name. * @arg: Ioctl argument. * @func: function that will handle the ioctl * * .. note:: * * This routine should be used only inside the V4L2 core. */ long int video_usercopy(struct file *file, unsigned int cmd, unsigned long int arg, v4l2_kioctl func); /** * video_ioctl2 - Handles a V4L2 ioctl. * * @file: Pointer to struct &file. * @cmd: Ioctl name. * @arg: Ioctl argument. * * Method used to hancle an ioctl. Should be used to fill the * &v4l2_ioctl_ops.unlocked_ioctl on all V4L2 drivers. */ long int video_ioctl2(struct file *file, unsigned int cmd, unsigned long int arg); /* * The user space interpretation of the 'v4l2_event' differs * based on the 'time_t' definition on 32-bit architectures, so * the kernel has to handle both. * This is the old version for 32-bit architectures. */ struct v4l2_event_time32 { __u32 type; union { struct v4l2_event_vsync vsync; struct v4l2_event_ctrl ctrl; struct v4l2_event_frame_sync frame_sync; struct v4l2_event_src_change src_change; struct v4l2_event_motion_det motion_det; __u8 data[64]; } u; __u32 pending; __u32 sequence; struct old_timespec32 timestamp; __u32 id; __u32 reserved[8]; }; #define VIDIOC_DQEVENT_TIME32 _IOR('V', 89, struct v4l2_event_time32) struct v4l2_buffer_time32 { __u32 index; __u32 type; __u32 bytesused; __u32 flags; __u32 field; struct old_timeval32 timestamp; struct v4l2_timecode timecode; __u32 sequence; /* memory location */ __u32 memory; union { __u32 offset; unsigned long userptr; struct v4l2_plane *planes; __s32 fd; } m; __u32 length; __u32 reserved2; union { __s32 request_fd; __u32 reserved; }; }; #define VIDIOC_QUERYBUF_TIME32 _IOWR('V', 9, struct v4l2_buffer_time32) #define VIDIOC_QBUF_TIME32 _IOWR('V', 15, struct v4l2_buffer_time32) #define VIDIOC_DQBUF_TIME32 _IOWR('V', 17, struct v4l2_buffer_time32) #define VIDIOC_PREPARE_BUF_TIME32 _IOWR('V', 93, struct v4l2_buffer_time32) #endif /* _V4L2_IOCTL_H */
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