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39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
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/*
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* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __MT76_DMA_H
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#define __MT76_DMA_H
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#define MT_RING_SIZE 0x10
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#define MT_DMA_CTL_SD_LEN1 GENMASK(13, 0)
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#define MT_DMA_CTL_LAST_SEC1 BIT(14)
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#define MT_DMA_CTL_BURST BIT(15)
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#define MT_DMA_CTL_SD_LEN0 GENMASK(29, 16)
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#define MT_DMA_CTL_LAST_SEC0 BIT(30)
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#define MT_DMA_CTL_DMA_DONE BIT(31)
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struct mt76_desc {
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__le32 buf0;
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__le32 ctrl;
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__le32 buf1;
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__le32 info;
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} __packed __aligned(4);
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int mt76_dma_attach(struct mt76_dev *dev);
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void mt76_dma_cleanup(struct mt76_dev *dev);
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#endif
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