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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 | ||
612570f2 HV |
21 | #ifndef IVTV_UDMA_H |
22 | #define IVTV_UDMA_H | |
23 | ||
1a0adaf3 HV |
24 | /* User DMA functions */ |
25 | void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size); | |
26 | int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset); | |
27 | void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split); | |
28 | int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, | |
29 | void __user *userbuf, int size_in_bytes); | |
30 | void ivtv_udma_unmap(struct ivtv *itv); | |
31 | void ivtv_udma_free(struct ivtv *itv); | |
32 | void ivtv_udma_alloc(struct ivtv *itv); | |
33 | void ivtv_udma_prepare(struct ivtv *itv); | |
34 | void ivtv_udma_start(struct ivtv *itv); | |
35 | ||
36 | static 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, |
1a0adaf3 HV |
39 | sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE); |
40 | } | |
41 | ||
42 | static 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, |
1a0adaf3 HV |
45 | sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE); |
46 | } | |
612570f2 HV |
47 | |
48 | #endif |