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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
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Copyright (C) 2004 Chris Kennedy <c@groovy.org>
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Copyright (C) 2006-2007 Hans Verkuil <hverkuil@xs4all.nl>
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*/
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#ifndef IVTV_UDMA_H
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#define IVTV_UDMA_H
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/* User DMA functions */
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void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size);
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int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset);
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void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split);
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int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
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void __user *userbuf, int size_in_bytes);
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void ivtv_udma_unmap(struct ivtv *itv);
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void ivtv_udma_free(struct ivtv *itv);
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void ivtv_udma_alloc(struct ivtv *itv);
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void ivtv_udma_prepare(struct ivtv *itv);
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void ivtv_udma_start(struct ivtv *itv);
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static inline void ivtv_udma_sync_for_device(struct ivtv *itv)
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{
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pci_dma_sync_single_for_device(itv->pdev, itv->udma.SG_handle,
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sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
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}
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static inline void ivtv_udma_sync_for_cpu(struct ivtv *itv)
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{
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pci_dma_sync_single_for_cpu(itv->pdev, itv->udma.SG_handle,
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sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
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}
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#endif
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