pt3.h (3eb66e91a25497065c5322b1268cbc3953642227) pt3.h (167905540e08e37162adc24066427944f71bf7a4)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Earthsoft PT3 driver
4 *
5 * Copyright (C) 2014 Akihiro Tsukada <tskd08@gmail.com>
6 */
7
8#ifndef PT3_H

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71/* DMA transfer description.
72 * device is passed a pointer to this struct, dma-reads it,
73 * and gets the DMA buffer ring for storing TS data.
74 */
75struct xfer_desc {
76 u32 addr_l; /* bus address of target data buffer */
77 u32 addr_h;
78 u32 size;
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Earthsoft PT3 driver
4 *
5 * Copyright (C) 2014 Akihiro Tsukada <tskd08@gmail.com>
6 */
7
8#ifndef PT3_H

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71/* DMA transfer description.
72 * device is passed a pointer to this struct, dma-reads it,
73 * and gets the DMA buffer ring for storing TS data.
74 */
75struct xfer_desc {
76 u32 addr_l; /* bus address of target data buffer */
77 u32 addr_h;
78 u32 size;
79 u32 next_l; /* bus adddress of the next xfer_desc */
79 u32 next_l; /* bus address of the next xfer_desc */
80 u32 next_h;
81};
82
83/* A DMA mapping of a page containing xfer_desc's */
84struct xfer_desc_buffer {
85 dma_addr_t b_addr;
86 struct xfer_desc *descs; /* PAGE_SIZE (xfer_desc[DESCS_IN_PAGE]) */
87};

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81};
82
83/* A DMA mapping of a page containing xfer_desc's */
84struct xfer_desc_buffer {
85 dma_addr_t b_addr;
86 struct xfer_desc *descs; /* PAGE_SIZE (xfer_desc[DESCS_IN_PAGE]) */
87};

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