| /* |
| 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 |
| */ |
| |
| #ifndef IVTV_UDMA_H |
| #define IVTV_UDMA_H |
| |
| /* 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); |
| } |
| |
| #endif |