diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:09:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:09:32 -0700 |
| commit | c634920abaf9c0a93266a57beff6fce9d3852cb2 (patch) | |
| tree | 5ac85f54905a8cd3b12b262c66189084cbff54fc /include/media/videobuf-vmalloc.h | |
| parent | 6abd2c860e34add677de50e8b134f5af6f4b0893 (diff) | |
| parent | a991f44b79fa49b281eb078eed4a76a42101012a (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (310 commits)
V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry
V4L/DVB (6315): pvrusb2: Change list_for_each+list_entry to list_for_each_entry
V4L/DVB (6314): saa7134: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6313): ivtv: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6312): cx88: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6311): dvb: Replace list_for_each+list_entry with list_for_each_entry
V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS
V4L/DVB (6307): V4L: w9968cf, remove bad usage of ERESTARTSYS
V4L/DVB (6306): Few clenups for saa7134 resume code
V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core
V4L/DVB (6301): pvrusb: Update DEBUGIFC sysfs to kernel 2.6.13+
V4L/DVB (6300): CodingStyle cleanup
V4L/DVB (6299): dvb: Add dependencies for VIDEOBUF_DVB
V4L/DVB (6297): cx23885: remove wrong Kconfig selection of VIDEOBUF
V4L/DVB (6296): dib0700: add support for AverMedia DVB-T Express card
V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115
V4L/DVB (6293): V4L: convert struct class_device to struct device
V4L/DVB (6292): videobuf_core init always require callback implementation
V4L/DVB (6291): Fix: avoid oops on some SMP machines
V4L/DVB (6290): remove videobuf_set_pci_ops
...
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 00000000000..26a8958d23d --- /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); |