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- /*
- 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);
- }
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