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36 lines
1.3 KiB
36 lines
1.3 KiB
/* 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 <[email protected]> |
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Copyright (C) 2006-2007 Hans Verkuil <[email protected]> |
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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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