| 1 | /*
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| 2 | * Copyright (c) 2014 Jan Vesely
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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 | /** @addtogroup drvusbehci
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| 29 | * @{
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| 30 | */
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| 31 | /** @file
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| 32 | * @brief EHCI driver transfer list structure
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| 33 | */
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| 34 | #ifndef DRV_EHCI_ENDPOINT_LIST_H
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| 35 | #define DRV_EHCI_ENDPOINT_LIST_H
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| 36 |
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| 37 | #include <adt/list.h>
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| 38 | #include <assert.h>
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| 39 | #include <fibril_synch.h>
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| 40 |
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| 41 | #include "ehci_bus.h"
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| 42 | #include "hw_struct/queue_head.h"
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| 43 |
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| 44 | /** Structure maintains both EHCI queue and software list of active endpoints. */
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| 45 | typedef struct endpoint_list {
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| 46 | /** Guard against add/remove races */
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| 47 | fibril_mutex_t guard;
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| 48 | /** EHCI hw structure at the beginning of the queue */
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| 49 | qh_t *list_head;
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| 50 | dma_buffer_t dma_buffer;
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| 51 | /** Assigned name, provides nicer debug output */
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| 52 | const char *name;
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| 53 | /** Sw list of all active EDs */
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| 54 | list_t endpoint_list;
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| 55 | } endpoint_list_t;
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| 56 |
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| 57 | /** Dispose transfer list structures.
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| 58 | *
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| 59 | * @param[in] instance Memory place to use.
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| 60 | *
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| 61 | * Frees memory of the internal ed_t structure.
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| 62 | */
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| 63 | static inline void endpoint_list_fini(endpoint_list_t *instance)
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| 64 | {
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| 65 | assert(instance);
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| 66 | dma_buffer_free(&instance->dma_buffer);
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| 67 | instance->list_head = NULL;
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| 68 | }
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| 69 |
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| 70 | errno_t endpoint_list_init(endpoint_list_t *instance, const char *name);
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| 71 | void endpoint_list_chain(endpoint_list_t *instance, const endpoint_list_t *next);
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| 72 | void endpoint_list_append_ep(endpoint_list_t *instance, ehci_endpoint_t *ep);
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| 73 | void endpoint_list_remove_ep(endpoint_list_t *instance, ehci_endpoint_t *ep);
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| 74 | #endif
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| 75 | /**
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| 76 | * @}
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| 77 | */
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