| 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 The host controller transfer ring management
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| 34 | */
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| 35 |
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| 36 | #ifndef XHCI_TRANSFERS_H
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| 37 | #define XHCI_TRANSFERS_H
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| 38 |
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| 39 | #include <usb/host/usb_transfer_batch.h>
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| 40 |
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| 41 | #include "hw_struct/context.h"
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| 42 | #include "trb_ring.h"
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| 43 |
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| 44 | typedef struct xhci_hc xhci_hc_t;
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| 45 |
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| 46 | typedef struct {
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| 47 | usb_transfer_batch_t batch;
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| 48 | link_t link;
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| 49 |
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| 50 | uint8_t direction;
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| 51 |
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| 52 | dma_buffer_t hc_buffer;
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| 53 |
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| 54 | uintptr_t interrupt_trb_phys;
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| 55 | } xhci_transfer_t;
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| 56 |
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| 57 | typedef struct {
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| 58 | /* Used buffer size */
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| 59 | uint64_t size;
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| 60 | /* Buffer with data */
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| 61 | dma_buffer_t data;
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| 62 | /* Physical address of enqueued TRB */
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| 63 | uintptr_t interrupt_trb_phys;
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| 64 | } xhci_isoch_transfer_t;
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| 65 |
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| 66 | xhci_transfer_t* xhci_transfer_create(endpoint_t *);
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| 67 | int xhci_transfer_schedule(xhci_hc_t *, usb_transfer_batch_t *);
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| 68 | int xhci_handle_transfer_event(xhci_hc_t *, xhci_trb_t *);
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| 69 | void xhci_transfer_destroy(xhci_transfer_t *);
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| 70 |
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| 71 | static inline xhci_transfer_t *xhci_transfer_from_batch(usb_transfer_batch_t *batch)
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| 72 | {
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| 73 | assert(batch);
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| 74 | return (xhci_transfer_t *) batch;
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| 75 | }
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| 76 |
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| 77 | /**
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| 78 | * @}
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| 79 | */
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| 80 | #endif
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