mirror of https://gitee.com/openkylin/linux.git
media: uvcvideo: Drop extern keyword in function declarations
The extern keyword isn't needed to declare functions in header files. Drop it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Laurent Pinchart
Mauro Carvalho Chehab
parent
07b7d9fc2a
commit
cb9cd6c5c3
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@ -667,40 +667,38 @@ extern unsigned int uvc_hw_timestamps_param;
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/* Core driver */
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extern struct uvc_driver uvc_driver;
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extern struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id);
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struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id);
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/* Video buffers queue management. */
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extern int uvc_queue_init(struct uvc_video_queue *queue,
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enum v4l2_buf_type type, int drop_corrupted);
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extern void uvc_queue_release(struct uvc_video_queue *queue);
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extern int uvc_request_buffers(struct uvc_video_queue *queue,
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struct v4l2_requestbuffers *rb);
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extern int uvc_query_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf);
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extern int uvc_create_buffers(struct uvc_video_queue *queue,
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struct v4l2_create_buffers *v4l2_cb);
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extern int uvc_queue_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf);
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extern int uvc_export_buffer(struct uvc_video_queue *queue,
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struct v4l2_exportbuffer *exp);
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extern int uvc_dequeue_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf, int nonblocking);
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extern int uvc_queue_streamon(struct uvc_video_queue *queue,
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enum v4l2_buf_type type);
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extern int uvc_queue_streamoff(struct uvc_video_queue *queue,
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enum v4l2_buf_type type);
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extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
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extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
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struct uvc_buffer *buf);
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extern int uvc_queue_mmap(struct uvc_video_queue *queue,
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struct vm_area_struct *vma);
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extern __poll_t uvc_queue_poll(struct uvc_video_queue *queue,
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struct file *file, poll_table *wait);
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int uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
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int drop_corrupted);
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void uvc_queue_release(struct uvc_video_queue *queue);
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int uvc_request_buffers(struct uvc_video_queue *queue,
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struct v4l2_requestbuffers *rb);
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int uvc_query_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf);
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int uvc_create_buffers(struct uvc_video_queue *queue,
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struct v4l2_create_buffers *v4l2_cb);
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int uvc_queue_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf);
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int uvc_export_buffer(struct uvc_video_queue *queue,
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struct v4l2_exportbuffer *exp);
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int uvc_dequeue_buffer(struct uvc_video_queue *queue,
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struct v4l2_buffer *v4l2_buf, int nonblocking);
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int uvc_queue_streamon(struct uvc_video_queue *queue, enum v4l2_buf_type type);
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int uvc_queue_streamoff(struct uvc_video_queue *queue, enum v4l2_buf_type type);
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void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
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struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
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struct uvc_buffer *buf);
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int uvc_queue_mmap(struct uvc_video_queue *queue,
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struct vm_area_struct *vma);
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__poll_t uvc_queue_poll(struct uvc_video_queue *queue, struct file *file,
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poll_table *wait);
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#ifndef CONFIG_MMU
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extern unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,
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unsigned long pgoff);
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unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,
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unsigned long pgoff);
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#endif
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extern int uvc_queue_allocated(struct uvc_video_queue *queue);
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int uvc_queue_allocated(struct uvc_video_queue *queue);
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static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
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{
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return vb2_is_streaming(&queue->queue);
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@ -711,18 +709,18 @@ extern const struct v4l2_ioctl_ops uvc_ioctl_ops;
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extern const struct v4l2_file_operations uvc_fops;
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/* Media controller */
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extern int uvc_mc_register_entities(struct uvc_video_chain *chain);
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extern void uvc_mc_cleanup_entity(struct uvc_entity *entity);
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int uvc_mc_register_entities(struct uvc_video_chain *chain);
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void uvc_mc_cleanup_entity(struct uvc_entity *entity);
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/* Video */
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extern int uvc_video_init(struct uvc_streaming *stream);
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extern int uvc_video_suspend(struct uvc_streaming *stream);
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extern int uvc_video_resume(struct uvc_streaming *stream, int reset);
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extern int uvc_video_enable(struct uvc_streaming *stream, int enable);
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extern int uvc_probe_video(struct uvc_streaming *stream,
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struct uvc_streaming_control *probe);
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extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit,
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__u8 intfnum, __u8 cs, void *data, __u16 size);
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int uvc_video_init(struct uvc_streaming *stream);
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int uvc_video_suspend(struct uvc_streaming *stream);
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int uvc_video_resume(struct uvc_streaming *stream, int reset);
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int uvc_video_enable(struct uvc_streaming *stream, int enable);
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int uvc_probe_video(struct uvc_streaming *stream,
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struct uvc_streaming_control *probe);
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int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit,
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__u8 intfnum, __u8 cs, void *data, __u16 size);
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void uvc_video_clock_update(struct uvc_streaming *stream,
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struct vb2_v4l2_buffer *vbuf,
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struct uvc_buffer *buf);
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@ -737,32 +735,32 @@ int uvc_register_video_device(struct uvc_device *dev,
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const struct v4l2_ioctl_ops *ioctl_ops);
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/* Status */
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extern int uvc_status_init(struct uvc_device *dev);
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extern void uvc_status_cleanup(struct uvc_device *dev);
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extern int uvc_status_start(struct uvc_device *dev, gfp_t flags);
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extern void uvc_status_stop(struct uvc_device *dev);
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int uvc_status_init(struct uvc_device *dev);
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void uvc_status_cleanup(struct uvc_device *dev);
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int uvc_status_start(struct uvc_device *dev, gfp_t flags);
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void uvc_status_stop(struct uvc_device *dev);
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/* Controls */
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extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;
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extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
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struct v4l2_queryctrl *v4l2_ctrl);
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extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
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struct v4l2_querymenu *query_menu);
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int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
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struct v4l2_queryctrl *v4l2_ctrl);
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int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
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struct v4l2_querymenu *query_menu);
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extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
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const struct uvc_control_mapping *mapping);
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extern int uvc_ctrl_init_device(struct uvc_device *dev);
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extern void uvc_ctrl_cleanup_device(struct uvc_device *dev);
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extern int uvc_ctrl_restore_values(struct uvc_device *dev);
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int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
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const struct uvc_control_mapping *mapping);
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int uvc_ctrl_init_device(struct uvc_device *dev);
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void uvc_ctrl_cleanup_device(struct uvc_device *dev);
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int uvc_ctrl_restore_values(struct uvc_device *dev);
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extern int uvc_ctrl_begin(struct uvc_video_chain *chain);
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extern int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback,
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const struct v4l2_ext_control *xctrls,
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unsigned int xctrls_count);
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int uvc_ctrl_begin(struct uvc_video_chain *chain);
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int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback,
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const struct v4l2_ext_control *xctrls,
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unsigned int xctrls_count);
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static inline int uvc_ctrl_commit(struct uvc_fh *handle,
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const struct v4l2_ext_control *xctrls,
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unsigned int xctrls_count)
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const struct v4l2_ext_control *xctrls,
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unsigned int xctrls_count)
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{
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return __uvc_ctrl_commit(handle, 0, xctrls, xctrls_count);
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}
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@ -771,25 +769,23 @@ static inline int uvc_ctrl_rollback(struct uvc_fh *handle)
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return __uvc_ctrl_commit(handle, 1, NULL, 0);
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}
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extern int uvc_ctrl_get(struct uvc_video_chain *chain,
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struct v4l2_ext_control *xctrl);
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extern int uvc_ctrl_set(struct uvc_video_chain *chain,
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struct v4l2_ext_control *xctrl);
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int uvc_ctrl_get(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl);
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int uvc_ctrl_set(struct uvc_video_chain *chain, struct v4l2_ext_control *xctrl);
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extern int uvc_xu_ctrl_query(struct uvc_video_chain *chain,
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struct uvc_xu_control_query *xqry);
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int uvc_xu_ctrl_query(struct uvc_video_chain *chain,
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struct uvc_xu_control_query *xqry);
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/* Utility functions */
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extern void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator,
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unsigned int n_terms, unsigned int threshold);
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extern uint32_t uvc_fraction_to_interval(uint32_t numerator,
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uint32_t denominator);
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extern struct usb_host_endpoint *uvc_find_endpoint(
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struct usb_host_interface *alts, __u8 epaddr);
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void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator,
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unsigned int n_terms, unsigned int threshold);
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uint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator);
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struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts,
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__u8 epaddr);
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/* Quirks support */
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void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream,
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struct uvc_buffer *buf, struct uvc_buffer *meta_buf);
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struct uvc_buffer *buf,
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struct uvc_buffer *meta_buf);
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/* debugfs and statistics */
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void uvc_debugfs_init(void);
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