/* * * 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 #include #include #include /* need __user */ #include struct v4l2_fh; struct v4l2_ioctl_ops { /* ioctl callbacks */ /* VIDIOC_QUERYCAP handler */ int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); /* Priority handling */ int (*vidioc_g_priority) (struct file *file, void *fh, enum v4l2_priority *p); int (*vidioc_s_priority) (struct file *file, void *fh, enum v4l2_priority p); /* 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); /* 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); /* 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); /* 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); /* 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_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); #endif int (*vidioc_g_chip_ident) (struct file *file, void *fh, struct v4l2_dbg_chip_ident *chip); 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_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, int cmd, void *arg); }; /* v4l debugging and diagnostics */ /* Debug bitmask flags to be used on V4L2 */ #define V4L2_DEBUG_IOCTL 0x01 #define V4L2_DEBUG_IOCTL_ARG 0x02 /* Video standard functions */ extern const char *v4l2_norm_to_name(v4l2_std_id id); extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); extern int v4l2_video_std_construct(struct v4l2_standard *vs, int id, const char *name); /* Prints the ioctl in a human-readable format. If prefix != NULL, then do printk(KERN_DEBUG "%s: ", prefix) first. */ extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd); /* Internal use only: get the mutex (if any) that we need to lock for the given command. */ struct video_device; extern struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd); /* names for fancy debug output */ extern const char *v4l2_field_names[]; extern const char *v4l2_type_names[]; #ifdef CONFIG_COMPAT /* 32 Bits compatibility layer for 64 bits processors */ extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg); #endif typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg); /* Include support for obsoleted stuff */ extern long video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, v4l2_kioctl func); /* Standard handlers for V4L ioctl's */ extern long video_ioctl2(struct file *file, unsigned int cmd, unsigned long arg); #endif /* _V4L2_IOCTL_H */