diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2007-04-27 12:31:25 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-04-27 15:43:50 -0300 |
| commit | 1a0adaf37c30e89e44d1470ef604a930999a5826 (patch) | |
| tree | 6e6d6e823f44abdb2ed3847e00406a75bc968cef /drivers/media/video/ivtv/ivtv-udma.h | |
| parent | ac52ea3c3c04403d10acf0253180ec6f51977142 (diff) | |
V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder/decoder
It took three core maintainers, over four years of work, eight new i2c
modules, eleven new V4L2 ioctls, three new DVB video ioctls, a Sliced
VBI API, a new MPEG encoder API, an enhanced DVB video MPEG decoding
API, major YUV/OSD contributions from Ian and John, web/wiki/svn/trac
support from Axel Thimm, (hardware) support from Hauppauge, support and
assistance from the v4l-dvb people and the many, many users of ivtv to
finally make it possible to merge this driver into the kernel.
Thank you all!
Signed-off-by: Kevin Thayer <nufan_wfk@yahoo.com>
Signed-off-by: Chris Kennedy <c@groovy.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: John P Harvey <john.p.harvey@btinternet.com>
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-udma.h')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-udma.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/media/video/ivtv/ivtv-udma.h b/drivers/media/video/ivtv/ivtv-udma.h new file mode 100644 index 000000000000..e131bccedec0 --- /dev/null +++ b/drivers/media/video/ivtv/ivtv-udma.h @@ -0,0 +1,43 @@ +/* + Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> + Copyright (C) 2004 Chris Kennedy <c@groovy.org> + Copyright (C) 2006-2007 Hans Verkuil <hverkuil@xs4all.nl> + + 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 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* User DMA functions */ +void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size); +int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset); +void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split); +int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, + void __user *userbuf, int size_in_bytes); +void ivtv_udma_unmap(struct ivtv *itv); +void ivtv_udma_free(struct ivtv *itv); +void ivtv_udma_alloc(struct ivtv *itv); +void ivtv_udma_prepare(struct ivtv *itv); +void ivtv_udma_start(struct ivtv *itv); + +static inline void ivtv_udma_sync_for_device(struct ivtv *itv) +{ + pci_dma_sync_single_for_device((struct pci_dev *)itv->dev, itv->udma.SG_handle, + sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE); +} + +static inline void ivtv_udma_sync_for_cpu(struct ivtv *itv) +{ + pci_dma_sync_single_for_cpu((struct pci_dev *)itv->dev, itv->udma.SG_handle, + sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE); +} |