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/* $FreeBSD$ */
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009 Sylvestre Gallon. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __LIBUSB10_H__
#define __LIBUSB10_H__
#ifndef LIBUSB_GLOBAL_INCLUDE_FILE
#include <sys/queue.h>
#endif
#define GET_CONTEXT(ctx) (((ctx) == NULL) ? usbi_default_context : (ctx))
#define UNEXPORTED __attribute__((__visibility__("hidden")))
#define CTX_LOCK(ctx) pthread_mutex_lock(&(ctx)->ctx_lock)
#define CTX_TRYLOCK(ctx) pthread_mutex_trylock(&(ctx)->ctx_lock)
#define CTX_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->ctx_lock)
#define HOTPLUG_LOCK(ctx) pthread_mutex_lock(&(ctx)->hotplug_lock)
#define HOTPLUG_UNLOCK(ctx) pthread_mutex_unlock(&(ctx)->hotplug_lock)
#define DPRINTF(ctx, dbg, format, ...) do { \
switch (dbg) { \
case LIBUSB_DEBUG_FUNCTION: \
if ((ctx)->debug & LIBUSB_DEBUG_FUNCTION) { \
printf("LIBUSB_FUNCTION: " \
format "\n", ## __VA_ARGS__); \
} \
break; \
case LIBUSB_DEBUG_TRANSFER: \
if ((ctx)->debug & LIBUSB_DEBUG_TRANSFER) { \
printf("LIBUSB_TRANSFER: " \
format "\n", ## __VA_ARGS__); \
} \
break; \
default: \
break; \
} \
} while (0)
/* internal structures */
struct libusb_super_pollfd {
TAILQ_ENTRY(libusb_super_pollfd) entry;
struct libusb20_device *pdev;
struct libusb_pollfd pollfd;
};
struct libusb_super_transfer {
TAILQ_ENTRY(libusb_super_transfer) entry;
uint8_t *curr_data;
uint32_t rem_len;
uint32_t last_len;
uint32_t stream_id;
uint8_t state;
#define LIBUSB_SUPER_XFER_ST_NONE 0
#define LIBUSB_SUPER_XFER_ST_PEND 1
};
struct libusb_hotplug_callback_handle_struct {
TAILQ_ENTRY(libusb_hotplug_callback_handle_struct) entry;
int events;
int vendor;
int product;
int devclass;
libusb_hotplug_callback_fn fn;
void *user_data;
};
TAILQ_HEAD(libusb_device_head, libusb_device);
struct libusb_context {
int debug;
int debug_fixed;
int ctrl_pipe[2];
int tr_done_ref;
int tr_done_gen;
pthread_mutex_t ctx_lock;
pthread_mutex_t hotplug_lock;
pthread_cond_t ctx_cond;
pthread_t hotplug_handler;
pthread_t ctx_handler;
#define NO_THREAD ((pthread_t)-1)
TAILQ_HEAD(, libusb_super_pollfd) pollfds;
TAILQ_HEAD(, libusb_super_transfer) tr_done;
TAILQ_HEAD(, libusb_hotplug_callback_handle_struct) hotplug_cbh;
struct libusb_device_head hotplug_devs;
struct libusb_super_pollfd ctx_poll;
libusb_pollfd_added_cb fd_added_cb;
libusb_pollfd_removed_cb fd_removed_cb;
void *fd_cb_user_data;
};
struct libusb_device {
int refcnt;
int device_is_gone;
uint32_t claimed_interfaces;
struct libusb_super_pollfd dev_poll;
struct libusb_context *ctx;
TAILQ_ENTRY(libusb_device) hotplug_entry;
TAILQ_HEAD(, libusb_super_transfer) tr_head;
struct libusb20_device *os_priv;
};
extern struct libusb_context *usbi_default_context;
void libusb10_add_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd, struct libusb20_device *pdev, int fd, short events);
void libusb10_remove_pollfd(libusb_context *ctx, struct libusb_super_pollfd *pollfd);
void libusb10_cancel_all_transfer(libusb_device *dev);
void libusb10_cancel_all_transfer_locked(struct libusb20_device *pdev, struct libusb_device *dev);
#endif /* __LIBUSB10_H__ */
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