| /* 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 |
| |
| /* 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 |
| |
| /** |
| * 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); |
| |
| #endif /* _V4L2_IOCTL_H */ |
