/* * helper functions for vmalloc capture buffers * * The functions expect the hardware being able to scatter gather * (i.e. the buffers are not linear in physical memory, but fragmented * into PAGE_SIZE chunks). They also assume the driver does not need * to touch the video data. * * (c) 2007 Mauro Carvalho Chehab, * * 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; either version 2 */ #ifndef _VIDEOBUF_VMALLOC_H #define _VIDEOBUF_VMALLOC_H #include /* --------------------------------------------------------------------- */ struct videobuf_vmalloc_memory { u32 magic; void *vaddr; /* remap_vmalloc_range seems to need to run * after mmap() on some cases */ struct vm_area_struct *vma; }; void videobuf_queue_vmalloc_init(struct videobuf_queue *q, const struct videobuf_queue_ops *ops, struct device *dev, spinlock_t *irqlock, enum v4l2_buf_type type, enum v4l2_field field, unsigned int msize, void *priv, struct mutex *ext_lock); void *videobuf_to_vmalloc(struct videobuf_buffer *buf); void videobuf_vmalloc_free(struct videobuf_buffer *buf); #endif submit' value='switch'/> net-next plumbingsTobias Klauser
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