| /* |
| * |
| * 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/compiler.h> /* need __user */ |
| #include <linux/videodev2.h> |
| |
| 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); |
| int (*vidioc_enum_fmt_type_private)(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_type_private)(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_type_private)(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_type_private)(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_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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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, |
| 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); |
| |
| /* 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, |
| 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, |
| struct v4l2_frequency *a); |
| |
| /* 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, |
| 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, |
| 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_enum_dv_presets) (struct file *file, void *fh, |
| struct v4l2_dv_enum_preset *preset); |
| |
| int (*vidioc_s_dv_preset) (struct file *file, void *fh, |
| struct v4l2_dv_preset *preset); |
| int (*vidioc_g_dv_preset) (struct file *file, void *fh, |
| struct v4l2_dv_preset *preset); |
| int (*vidioc_query_dv_preset) (struct file *file, void *fh, |
| struct v4l2_dv_preset *qpreset); |
| 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_subscribe_event) (struct v4l2_fh *fh, |
| struct v4l2_event_subscription *sub); |
| int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, |
| 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 |
| |
| /* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ |
| #define v4l_print_ioctl(name, cmd) \ |
| do { \ |
| printk(KERN_DEBUG "%s: ", name); \ |
| v4l_printk_ioctl(cmd); \ |
| } while (0) |
| |
| /* Use this macro in I2C drivers where 'client' is the struct i2c_client |
| pointer */ |
| #define v4l_i2c_print_ioctl(client, cmd) \ |
| do { \ |
| v4l_client_printk(KERN_DEBUG, client, ""); \ |
| v4l_printk_ioctl(cmd); \ |
| } while (0) |
| |
| /* 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 */ |
| extern void v4l_printk_ioctl(unsigned int 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 */ |