2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2009 Sylvestre Gallon. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. 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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #ifndef __LIBUSB10_H__
29 #define __LIBUSB10_H__
31 #ifndef LIBUSB_GLOBAL_INCLUDE_FILE
32 #include <sys/queue.h>
35 #define GET_CONTEXT(ctx) (((ctx) == NULL) ? usbi_default_context : (ctx))
36 #define UNEXPORTED __attribute__((__visibility__("hidden")))
37 #define CTX_LOCK(ctx) pthread_mutex_lock(&(ctx)->ctx_lock)
38 #define CTX_TRYLOCK(ctx) pthread_mutex_trylock(&(ctx)->ctx_lock)
39 #define CTX_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->ctx_lock)
40 #define HOTPLUG_LOCK(ctx) pthread_mutex_lock(&(ctx)->hotplug_lock)
41 #define HOTPLUG_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->hotplug_lock)
43 #define DPRINTF(ctx, dbg, format, ...) do { \
45 case LIBUSB_DEBUG_FUNCTION: \
46 if ((ctx)->debug & LIBUSB_DEBUG_FUNCTION) { \
47 printf("LIBUSB_FUNCTION: " \
48 format "\n", ## __VA_ARGS__); \
51 case LIBUSB_DEBUG_TRANSFER: \
52 if ((ctx)->debug & LIBUSB_DEBUG_TRANSFER) { \
53 printf("LIBUSB_TRANSFER: " \
54 format "\n", ## __VA_ARGS__); \
62 /* internal structures */
64 struct libusb_super_pollfd {
65 TAILQ_ENTRY(libusb_super_pollfd) entry;
66 struct libusb20_device *pdev;
67 struct libusb_pollfd pollfd;
70 struct libusb_super_transfer {
71 TAILQ_ENTRY(libusb_super_transfer) entry;
77 #define LIBUSB_SUPER_XFER_ST_NONE 0
78 #define LIBUSB_SUPER_XFER_ST_PEND 1
81 struct libusb_hotplug_callback_handle_struct {
82 TAILQ_ENTRY(libusb_hotplug_callback_handle_struct) entry;
87 libusb_hotplug_callback_fn fn;
91 TAILQ_HEAD(libusb_device_head, libusb_device);
93 struct libusb_context {
100 pthread_mutex_t ctx_lock;
101 pthread_mutex_t hotplug_lock;
102 pthread_cond_t ctx_cond;
103 pthread_t hotplug_handler;
104 pthread_t ctx_handler;
105 #define NO_THREAD ((pthread_t)-1)
107 TAILQ_HEAD(, libusb_super_pollfd) pollfds;
108 TAILQ_HEAD(, libusb_super_transfer) tr_done;
109 TAILQ_HEAD(, libusb_hotplug_callback_handle_struct) hotplug_cbh;
110 struct libusb_device_head hotplug_devs;
112 struct libusb_super_pollfd ctx_poll;
114 libusb_pollfd_added_cb fd_added_cb;
115 libusb_pollfd_removed_cb fd_removed_cb;
116 void *fd_cb_user_data;
119 struct libusb_device {
124 uint32_t claimed_interfaces;
126 struct libusb_super_pollfd dev_poll;
128 struct libusb_context *ctx;
130 TAILQ_ENTRY(libusb_device) hotplug_entry;
132 TAILQ_HEAD(, libusb_super_transfer) tr_head;
134 struct libusb20_device *os_priv;
137 extern struct libusb_context *usbi_default_context;
139 void libusb10_add_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd, struct libusb20_device *pdev, int fd, short events);
140 void libusb10_remove_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd);
141 void libusb10_cancel_all_transfer(libusb_device *dev);
142 void libusb10_cancel_all_transfer_locked(struct libusb20_device *pdev, struct libusb_device *dev);
144 #endif /* __LIBUSB10_H__ */