source: mainline/uspace/lib/usbhost/src/endpoint.c@ 563d9d0a

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 563d9d0a was 563d9d0a, checked in by Jan Vesely <jano.vesely@…>, 14 years ago

libusbhost: minor cleanup and fixes
  • Property mode set to 100644
File size: 5.0 KB
Line 
1/*
2 * Copyright (c) 2011 Jan Vesely
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup drvusbuhcihc
30 * @{
31 */
32/** @file
33 * @brief UHCI host controller driver structure
34 */
35
36#include <assert.h>
37#include <stdlib.h>
38#include <errno.h>
39#include <usb/host/endpoint.h>
40
41endpoint_t * endpoint_get(usb_address_t address, usb_endpoint_t endpoint,
42 usb_direction_t direction, usb_transfer_type_t type, usb_speed_t speed,
43 size_t max_packet_size)
44{
45 endpoint_t *instance = malloc(sizeof(endpoint_t));
46 if (instance) {
47 instance->address = address;
48 instance->endpoint = endpoint;
49 instance->direction = direction;
50 instance->transfer_type = type;
51 instance->speed = speed;
52 instance->max_packet_size = max_packet_size;
53 instance->toggle = 0;
54 instance->active = false;
55 instance->destroy_hook = NULL;
56 instance->hc_data.data = NULL;
57 instance->hc_data.toggle_get = NULL;
58 instance->hc_data.toggle_set = NULL;
59 fibril_mutex_initialize(&instance->guard);
60 fibril_condvar_initialize(&instance->avail);
61 endpoint_clear_hc_data(instance);
62 }
63 return instance;
64}
65/*----------------------------------------------------------------------------*/
66void endpoint_destroy(endpoint_t *instance)
67{
68 assert(instance);
69 assert(!instance->active);
70 if (instance->hc_data.data) {
71 assert(instance->destroy_hook);
72 instance->destroy_hook(instance);
73 }
74 free(instance);
75}
76/*----------------------------------------------------------------------------*/
77void endpoint_set_hc_data(endpoint_t *instance,
78 void *data, void (*destroy_hook)(endpoint_t *),
79 int (*toggle_get)(void *), void (*toggle_set)(void *, int))
80{
81 assert(instance);
82 instance->destroy_hook = destroy_hook;
83 instance->hc_data.data = data;
84 instance->hc_data.toggle_get = toggle_get;
85 instance->hc_data.toggle_set = toggle_set;
86}
87/*----------------------------------------------------------------------------*/
88void endpoint_clear_hc_data(endpoint_t *instance)
89{
90 assert(instance);
91 instance->destroy_hook = NULL;
92 instance->hc_data.data = NULL;
93 instance->hc_data.toggle_get = NULL;
94 instance->hc_data.toggle_set = NULL;
95}
96/*----------------------------------------------------------------------------*/
97void endpoint_use(endpoint_t *instance)
98{
99 assert(instance);
100 fibril_mutex_lock(&instance->guard);
101 while (instance->active)
102 fibril_condvar_wait(&instance->avail, &instance->guard);
103 instance->active = true;
104 fibril_mutex_unlock(&instance->guard);
105}
106/*----------------------------------------------------------------------------*/
107void endpoint_release(endpoint_t *instance)
108{
109 assert(instance);
110 fibril_mutex_lock(&instance->guard);
111 instance->active = false;
112 fibril_mutex_unlock(&instance->guard);
113 fibril_condvar_signal(&instance->avail);
114}
115/*----------------------------------------------------------------------------*/
116int endpoint_toggle_get(endpoint_t *instance)
117{
118 assert(instance);
119 if (instance->hc_data.toggle_get)
120 instance->toggle =
121 instance->hc_data.toggle_get(instance->hc_data.data);
122 return (int)instance->toggle;
123}
124/*----------------------------------------------------------------------------*/
125void endpoint_toggle_set(endpoint_t *instance, int toggle)
126{
127 assert(instance);
128 assert(toggle == 0 || toggle == 1);
129 if (instance->hc_data.toggle_set)
130 instance->hc_data.toggle_set(instance->hc_data.data, toggle);
131 instance->toggle = toggle;
132}
133/*----------------------------------------------------------------------------*/
134void endpoint_toggle_reset_filtered(endpoint_t *instance, usb_target_t target)
135{
136 assert(instance);
137 if (instance->address == target.address &&
138 (instance->endpoint == target.endpoint || target.endpoint == 0))
139 endpoint_toggle_set(instance, 0);
140}
141/**
142 * @}
143 */
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