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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-13 03:27:47 +0200 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2007-10-13 03:27:47 +0200 |
commit | b981d8b3f5e008ff10d993be633ad00564fc22cd (patch) | |
tree | e292dc07b22308912cf6a58354a608b9e5e8e1fd /include/media/videobuf-vmalloc.h | |
parent | Input: add support for SEGA Dreamcast keyboard (diff) | |
parent | Only enable BLOCK_COMPAT if COMPAT is needed (diff) | |
download | linux-b981d8b3f5e008ff10d993be633ad00564fc22cd.tar.xz linux-b981d8b3f5e008ff10d993be633ad00564fc22cd.zip |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/macintosh/adbhid.c
Diffstat (limited to 'include/media/videobuf-vmalloc.h')
-rw-r--r-- | include/media/videobuf-vmalloc.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/media/videobuf-vmalloc.h b/include/media/videobuf-vmalloc.h new file mode 100644 index 000000000000..26a8958d23d1 --- /dev/null +++ b/include/media/videobuf-vmalloc.h @@ -0,0 +1,41 @@ +/* + * helper functions for vmalloc capture buffers + * + * The functions expect the hardware being able to scatter gatter + * (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, <mchehab@infradead.org> + * + * 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 + */ + +#include <media/videobuf-core.h> + +/* --------------------------------------------------------------------- */ + +struct videbuf_vmalloc_memory +{ + u32 magic; + + void *vmalloc; + + /* 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, + struct videobuf_queue_ops *ops, + void *dev, + spinlock_t *irqlock, + enum v4l2_buf_type type, + enum v4l2_field field, + unsigned int msize, + void *priv); + +void *videobuf_to_vmalloc (struct videobuf_buffer *buf); + +void videobuf_vmalloc_free (struct videobuf_buffer *buf); |