/* 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); }