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 #include <sys/queue.h> 31 32 #define GET_CONTEXT(ctx) (((ctx) == NULL) ? usbi_default_context : (ctx)) 33 #define UNEXPORTED __attribute__((__visibility__("hidden"))) 34 #define CTX_LOCK(ctx) pthread_mutex_lock(&(ctx)->ctx_lock) 35 #define CTX_TRYLOCK(ctx) pthread_mutex_trylock(&(ctx)->ctx_lock) 36 #define CTX_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->ctx_lock) 37 38 #define DPRINTF(ctx, dbg, format, args...) do { \ 39 if ((ctx)->debug == dbg) { \ 40 switch (dbg) { \ 41 case LIBUSB_DEBUG_FUNCTION: \ 42 printf("LIBUSB_FUNCTION: " \ 43 format "\n", ## args); \ 44 break; \ 45 case LIBUSB_DEBUG_TRANSFER: \ 46 printf("LIBUSB_TRANSFER: " \ 47 format "\n", ## args); \ 48 break; \ 49 default: \ 50 break; \ 51 } \ 52 } \ 53 } while(0) 54 55 /* internal structures */ 56 57 struct libusb_super_pollfd { 58 TAILQ_ENTRY(libusb_super_pollfd) entry; 59 struct libusb20_device *pdev; 60 struct libusb_pollfd pollfd; 61 }; 62 63 struct libusb_super_transfer { 64 TAILQ_ENTRY(libusb_super_transfer) entry; 65 uint8_t *curr_data; 66 uint32_t rem_len; 67 uint32_t last_len; 68 uint8_t state; 69 #define LIBUSB_SUPER_XFER_ST_NONE 0 70 #define LIBUSB_SUPER_XFER_ST_PEND 1 71 }; 72 73 struct libusb_context { 74 int debug; 75 int debug_fixed; 76 int ctrl_pipe[2]; 77 int tr_done_ref; 78 int tr_done_gen; 79 80 pthread_mutex_t ctx_lock; 81 pthread_cond_t ctx_cond; 82 pthread_t ctx_handler; 83 #define NO_THREAD ((pthread_t)-1) 84 85 TAILQ_HEAD(, libusb_super_pollfd) pollfds; 86 TAILQ_HEAD(, libusb_super_transfer) tr_done; 87 88 struct libusb_super_pollfd ctx_poll; 89 90 libusb_pollfd_added_cb fd_added_cb; 91 libusb_pollfd_removed_cb fd_removed_cb; 92 void *fd_cb_user_data; 93 }; 94 95 struct libusb_device { 96 int refcnt; 97 98 uint32_t claimed_interfaces; 99 100 struct libusb_super_pollfd dev_poll; 101 102 struct libusb_context *ctx; 103 104 TAILQ_HEAD(, libusb_super_transfer) tr_head; 105 106 struct libusb20_device *os_priv; 107 }; 108 109 extern struct libusb_context *usbi_default_context; 110 111 void libusb10_add_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd, struct libusb20_device *pdev, int fd, short events); 112 void libusb10_remove_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd); 113 void libusb10_cancel_all_transfer(libusb_device *dev); 114 115 #endif /* __LIBUSB10_H__ */ 116