Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuil...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / ivtv / ivtv-udma.h
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1/*
2 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
3 Copyright (C) 2004 Chris Kennedy <c@groovy.org>
4 Copyright (C) 2006-2007 Hans Verkuil <hverkuil@xs4all.nl>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
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21#ifndef IVTV_UDMA_H
22#define IVTV_UDMA_H
23
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24/* User DMA functions */
25void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size);
26int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset);
27void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split);
28int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
29 void __user *userbuf, int size_in_bytes);
30void ivtv_udma_unmap(struct ivtv *itv);
31void ivtv_udma_free(struct ivtv *itv);
32void ivtv_udma_alloc(struct ivtv *itv);
33void ivtv_udma_prepare(struct ivtv *itv);
34void ivtv_udma_start(struct ivtv *itv);
35
36static inline void ivtv_udma_sync_for_device(struct ivtv *itv)
37{
8ac05ae3 38 pci_dma_sync_single_for_device(itv->pdev, itv->udma.SG_handle,
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39 sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
40}
41
42static inline void ivtv_udma_sync_for_cpu(struct ivtv *itv)
43{
8ac05ae3 44 pci_dma_sync_single_for_cpu(itv->pdev, itv->udma.SG_handle,
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45 sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
46}
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47
48#endif