| 1 | /*
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| 2 | * Copyright (c) 2011 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 |
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| 29 | /** @addtogroup drvusbuhcihc
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * @brief UHCI host controller driver structure
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| 34 | */
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| 35 |
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| 36 | #include <assert.h>
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| 37 | #include <errno.h>
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| 38 | #include <usb/host/endpoint.h>
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| 39 |
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| 40 | int endpoint_init(endpoint_t *instance, usb_address_t address,
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| 41 | usb_endpoint_t endpoint, usb_direction_t direction,
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| 42 | usb_transfer_type_t type, usb_speed_t speed, size_t max_packet_size)
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| 43 | {
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| 44 | assert(instance);
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| 45 | instance->address = address;
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| 46 | instance->endpoint = endpoint;
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| 47 | instance->direction = direction;
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| 48 | instance->transfer_type = type;
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| 49 | instance->speed = speed;
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| 50 | instance->max_packet_size = max_packet_size;
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| 51 | instance->toggle = 0;
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| 52 | instance->active = false;
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| 53 | fibril_mutex_initialize(&instance->guard);
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| 54 | fibril_condvar_initialize(&instance->avail);
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| 55 | link_initialize(&instance->same_device_eps);
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| 56 | return EOK;
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| 57 | }
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| 58 | /*----------------------------------------------------------------------------*/
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| 59 | void endpoint_destroy(endpoint_t *instance)
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| 60 | {
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| 61 | assert(instance);
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| 62 | assert(!instance->active);
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| 63 | list_remove(&instance->same_device_eps);
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| 64 | free(instance);
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| 65 | }
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| 66 | /*----------------------------------------------------------------------------*/
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| 67 | void endpoint_use(endpoint_t *instance)
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| 68 | {
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| 69 | assert(instance);
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| 70 | fibril_mutex_lock(&instance->guard);
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| 71 | while (instance->active)
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| 72 | fibril_condvar_wait(&instance->avail, &instance->guard);
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| 73 | instance->active = true;
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| 74 | fibril_mutex_unlock(&instance->guard);
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| 75 | }
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| 76 | /*----------------------------------------------------------------------------*/
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| 77 | void endpoint_release(endpoint_t *instance)
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| 78 | {
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| 79 | assert(instance);
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| 80 | fibril_mutex_lock(&instance->guard);
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| 81 | instance->active = false;
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| 82 | fibril_mutex_unlock(&instance->guard);
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| 83 | fibril_condvar_signal(&instance->avail);
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| 84 | }
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| 85 | /*----------------------------------------------------------------------------*/
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| 86 | int endpoint_toggle_get(endpoint_t *instance)
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| 87 | {
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| 88 | assert(instance);
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| 89 | return (int)instance->toggle;
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| 90 | }
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| 91 | /*----------------------------------------------------------------------------*/
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| 92 | void endpoint_toggle_set(endpoint_t *instance, int toggle)
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| 93 | {
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| 94 | assert(instance);
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| 95 | assert(toggle == 0 || toggle == 1);
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| 96 | instance->toggle = toggle;
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| 97 | }
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| 98 | /*----------------------------------------------------------------------------*/
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| 99 | void endpoint_toggle_reset(link_t *ep)
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| 100 | {
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| 101 | endpoint_t *instance =
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| 102 | list_get_instance(ep, endpoint_t, same_device_eps);
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| 103 | assert(instance);
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| 104 | instance->toggle = 0;
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| 105 | }
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| 106 | /*----------------------------------------------------------------------------*/
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| 107 | void endpoint_toggle_reset_filtered(link_t *ep, usb_endpoint_t epn)
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| 108 | {
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| 109 | endpoint_t *instance =
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| 110 | list_get_instance(ep, endpoint_t, same_device_eps);
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| 111 | assert(instance);
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| 112 | if (instance->endpoint == epn)
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| 113 | instance->toggle = 0;
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| 114 | }
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| 115 | /**
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| 116 | * @}
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| 117 | */
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