参照元

説明

参考

実装

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_vid_cap_mplane)(struct file *file, void *fh,
                                              struct v4l2_fmtdesc *f);
        int (*vidioc_enum_fmt_vid_out_mplane)(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);
        /* 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);
        /* 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);
        /* 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);
        /* 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
                        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_cropcap)          (struct file *file, void *fh,
                                        struct v4l2_cropcap *a);
        int (*vidioc_g_crop)           (struct file *file, void *fh,
                                        struct v4l2_crop *a);
        int (*vidioc_s_crop)           (struct file *file, void *fh,
                                        const struct v4l2_crop *a);
        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);
};

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