name : videobuf2-memops.h /* * videobuf2-memops.h - generic memory handling routines for videobuf2 * * Copyright (C) 2010 Samsung Electronics * * Author: Pawel Osciak <pawel@osciak.com> * Marek Szyprowski <m.szyprowski@samsung.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. */ #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H #define _MEDIA_VIDEOBUF2_MEMOPS_H #include <media/videobuf2-v4l2.h> #include <linux/mm.h> #include <linux/refcount.h> /** * struct vb2_vmarea_handler - common vma refcount tracking handler. * * @refcount: pointer to &refcount_t entry in the buffer. * @put: callback to function that decreases buffer refcount. * @arg: argument for @put callback. */ struct vb2_vmarea_handler { refcount_t *refcount; void (*put)(void *arg); void *arg; }; extern const struct vm_operations_struct vb2_common_vm_ops; struct frame_vector *vb2_create_framevec(unsigned long start, unsigned long length, bool write); void vb2_destroy_framevec(struct frame_vector *vec); #endif