| 1 | /*
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| 2 | * Copyright (c) 2017 Michal Staruch
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup drvusbxhci
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * @brief Structures and functions for Superspeed bulk streams.
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| 34 | */
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| 35 |
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| 36 | #ifndef XHCI_STREAMS_H
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| 37 | #define XHCI_STREAMS_H
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| 38 |
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| 39 | #include "endpoint.h"
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| 40 | #include "hw_struct/context.h"
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| 41 | #include "trb_ring.h"
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| 42 |
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| 43 | typedef struct xhci_endpoint xhci_endpoint_t;
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| 44 | typedef struct xhci_stream_data xhci_stream_data_t;
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| 45 |
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| 46 | typedef struct xhci_stream_data {
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| 47 | /** The TRB ring for the context, if valid */
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| 48 | xhci_trb_ring_t ring;
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| 49 |
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| 50 | /** Pointer to the array of secondary stream context data for primary data. */
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| 51 | xhci_stream_data_t *secondary_data;
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| 52 |
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| 53 | /** The size of secondary stream context data array */
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| 54 | uint32_t secondary_size;
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| 55 |
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| 56 | /** Secondary stream context array - allocated for xHC hardware.
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| 57 | * Required for later dealocation of secondary structure.
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| 58 | */
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| 59 | xhci_stream_ctx_t *secondary_stream_ctx_array;
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| 60 | dma_buffer_t secondary_stream_ctx_dma;
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| 61 | } xhci_stream_data_t;
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| 62 |
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| 63 | xhci_stream_data_t *xhci_get_stream_ctx_data(xhci_endpoint_t *ep, uint32_t stream_id);
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| 64 | void xhci_stream_free_ds(xhci_endpoint_t *xhci_ep);
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| 65 |
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| 66 | int xhci_endpoint_request_primary_streams(xhci_hc_t *hc, xhci_device_t *dev,
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| 67 | xhci_endpoint_t *xhci_ep, unsigned count);
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| 68 | int xhci_endpoint_request_secondary_streams(xhci_hc_t *hc, xhci_device_t *dev,
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| 69 | xhci_endpoint_t *xhci_ep, unsigned *sizes, unsigned count);
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| 70 |
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| 71 | #endif
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