1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2009 Sylvestre Gallon. 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef __LIBUSB10_H__ 28 #define __LIBUSB10_H__ 29 30 #ifndef LIBUSB_GLOBAL_INCLUDE_FILE 31 #include <sys/queue.h> 32 #endif 33 34 #define GET_CONTEXT(ctx) (((ctx) == NULL) ? usbi_default_context : (ctx)) 35 #define UNEXPORTED __attribute__((__visibility__("hidden"))) 36 #define CTX_LOCK(ctx) pthread_mutex_lock(&(ctx)->ctx_lock) 37 #define CTX_TRYLOCK(ctx) pthread_mutex_trylock(&(ctx)->ctx_lock) 38 #define CTX_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->ctx_lock) 39 #define HOTPLUG_LOCK(ctx) pthread_mutex_lock(&(ctx)->hotplug_lock) 40 #define HOTPLUG_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->hotplug_lock) 41 42 #define DPRINTF(ctx, dbg, format, ...) do { \ 43 switch (dbg) { \ 44 case LIBUSB_DEBUG_FUNCTION: \ 45 if ((ctx)->debug & LIBUSB_DEBUG_FUNCTION) { \ 46 printf("LIBUSB_FUNCTION: " \ 47 format "\n", ## __VA_ARGS__); \ 48 } \ 49 break; \ 50 case LIBUSB_DEBUG_TRANSFER: \ 51 if ((ctx)->debug & LIBUSB_DEBUG_TRANSFER) { \ 52 printf("LIBUSB_TRANSFER: " \ 53 format "\n", ## __VA_ARGS__); \ 54 } \ 55 break; \ 56 default: \ 57 break; \ 58 } \ 59 } while (0) 60 61 /* internal structures */ 62 63 struct libusb_super_pollfd { 64 TAILQ_ENTRY(libusb_super_pollfd) entry; 65 struct libusb20_device *pdev; 66 struct libusb_pollfd pollfd; 67 }; 68 69 struct libusb_super_transfer { 70 TAILQ_ENTRY(libusb_super_transfer) entry; 71 uint8_t *curr_data; 72 uint32_t rem_len; 73 uint32_t last_len; 74 uint32_t stream_id; 75 uint8_t state; 76 #define LIBUSB_SUPER_XFER_ST_NONE 0 77 #define LIBUSB_SUPER_XFER_ST_PEND 1 78 }; 79 80 struct libusb_hotplug_callback_handle_struct { 81 TAILQ_ENTRY(libusb_hotplug_callback_handle_struct) entry; 82 int events; 83 int vendor; 84 int product; 85 int devclass; 86 libusb_hotplug_callback_fn fn; 87 void *user_data; 88 }; 89 90 TAILQ_HEAD(libusb_device_head, libusb_device); 91 92 struct libusb_context { 93 int debug; 94 int debug_fixed; 95 int ctrl_pipe[2]; 96 int tr_done_ref; 97 int tr_done_gen; 98 99 pthread_mutex_t ctx_lock; 100 pthread_mutex_t hotplug_lock; 101 pthread_cond_t ctx_cond; 102 pthread_t hotplug_handler; 103 pthread_t ctx_handler; 104 #define NO_THREAD ((pthread_t)-1) 105 106 TAILQ_HEAD(, libusb_super_pollfd) pollfds; 107 TAILQ_HEAD(, libusb_super_transfer) tr_done; 108 TAILQ_HEAD(, libusb_hotplug_callback_handle_struct) hotplug_cbh; 109 struct libusb_device_head hotplug_devs; 110 111 struct libusb_super_pollfd ctx_poll; 112 113 libusb_pollfd_added_cb fd_added_cb; 114 libusb_pollfd_removed_cb fd_removed_cb; 115 void *fd_cb_user_data; 116 }; 117 118 struct libusb_device { 119 int refcnt; 120 121 int device_is_gone; 122 123 uint32_t claimed_interfaces; 124 125 struct libusb_super_pollfd dev_poll; 126 127 struct libusb_context *ctx; 128 129 TAILQ_ENTRY(libusb_device) hotplug_entry; 130 131 TAILQ_HEAD(, libusb_super_transfer) tr_head; 132 133 struct libusb20_device *os_priv; 134 }; 135 136 extern struct libusb_context *usbi_default_context; 137 138 void libusb10_add_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd, struct libusb20_device *pdev, int fd, short events); 139 void libusb10_remove_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd); 140 void libusb10_cancel_all_transfer(libusb_device *dev); 141 void libusb10_cancel_all_transfer_locked(struct libusb20_device *pdev, struct libusb_device *dev); 142 143 #endif /* __LIBUSB10_H__ */ 144