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Add files missed in r194674.

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Add libusb 1.0 support which is compatible with the latest revision on
Sourceforge. Libusb 1.0 is a portable usb api released December 2008 and
supersedes the original libusb released 10 years ago, it supports isochronous
endpoints and asynchronous I/O.  Many applications have already started using
the interfaces.

This has been developed as part of Google Summer of Code this year by Sylvestre
Gallon and has been cribbed early due to it being desirable in FreeBSD 8.0

Submitted by: Sylvestre Gallon
Sponsored by: Google Summer of Code 2009
Reviewed by:  Hans Petter Selasky
This commit is contained in:
Andrew Thompson 2009-06-23 01:04:58 +00:00
parent 8112ca35f7
commit 8c8fff3177
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=194676
5 changed files with 2861 additions and 0 deletions
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/* $FreeBSD$ */
/*-
* 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 __LIBUSB_H__
#define __LIBUSB_H__
#include <stdint.h>
#include <time.h>
#include <string.h>
#include <pthread.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/endian.h>
#ifdef __cplusplus
extern "C" {
#endif
#if 0
} /* indent fix */
#endif
struct list_head {
struct list_head *prev, *next;
};
/* libusb enums */
enum libusb_class_code {
LIBUSB_CLASS_PER_INTERFACE = 0,
LIBUSB_CLASS_AUDIO = 1,
LIBUSB_CLASS_COMM = 2,
LIBUSB_CLASS_HID = 3,
LIBUSB_CLASS_PTP = 6,
LIBUSB_CLASS_PRINTER = 7,
LIBUSB_CLASS_MASS_STORAGE = 8,
LIBUSB_CLASS_HUB = 9,
LIBUSB_CLASS_DATA = 10,
LIBUSB_CLASS_VENDOR_SPEC = 0xff,
};
enum libusb_descriptor_type {
LIBUSB_DT_DEVICE = 0x01,
LIBUSB_DT_CONFIG = 0x02,
LIBUSB_DT_STRING = 0x03,
LIBUSB_DT_INTERFACE = 0x04,
LIBUSB_DT_ENDPOINT = 0x05,
LIBUSB_DT_HID = 0x21,
LIBUSB_DT_REPORT = 0x22,
LIBUSB_DT_PHYSICAL = 0x23,
LIBUSB_DT_HUB = 0x29,
};
#define LIBUSB_DT_DEVICE_SIZE 18
#define LIBUSB_DT_CONFIG_SIZE 9
#define LIBUSB_DT_INTERFACE_SIZE 9
#define LIBUSB_DT_ENDPOINT_SIZE 7
#define LIBUSB_DT_ENDPOINT_AUDIO_SIZE 9
#define LIBUSB_DT_HUB_NONVAR_SIZE 7
#define LIBUSB_ENDPOINT_ADDRESS_MASK 0x0f
#define LIBUSB_ENDPOINT_DIR_MASK 0x80
enum libusb_endpoint_direction {
LIBUSB_ENDPOINT_IN = 0x80,
LIBUSB_ENDPOINT_OUT = 0x00,
};
#define LIBUSB_TRANSFER_TYPE_MASK 0x03
enum libusb_transfer_type {
LIBUSB_TRANSFER_TYPE_CONTROL = 0,
LIBUSB_TRANSFER_TYPE_ISOCHRONOUS = 1,
LIBUSB_TRANSFER_TYPE_BULK = 2,
LIBUSB_TRANSFER_TYPE_INTERRUPT = 3,
};
enum libusb_standard_request {
LIBUSB_REQUEST_GET_STATUS = 0x00,
LIBUSB_REQUEST_CLEAR_FEATURE = 0x01,
LIBUSB_REQUEST_SET_FEATURE = 0x03,
LIBUSB_REQUEST_SET_ADDRESS = 0x05,
LIBUSB_REQUEST_GET_DESCRIPTOR = 0x06,
LIBUSB_REQUEST_SET_DESCRIPTOR = 0x07,
LIBUSB_REQUEST_GET_CONFIGURATION = 0x08,
LIBUSB_REQUEST_SET_CONFIGURATION = 0x09,
LIBUSB_REQUEST_GET_INTERFACE = 0x0A,
LIBUSB_REQUEST_SET_INTERFACE = 0x0B,
LIBUSB_REQUEST_SYNCH_FRAME = 0x0C,
};
enum libusb_request_type {
LIBUSB_REQUEST_TYPE_STANDARD = (0x00 << 5),
LIBUSB_REQUEST_TYPE_CLASS = (0x01 << 5),
LIBUSB_REQUEST_TYPE_VENDOR = (0x02 << 5),
LIBUSB_REQUEST_TYPE_RESERVED = (0x03 << 5),
};
enum libusb_request_recipient {
LIBUSB_RECIPIENT_DEVICE = 0x00,
LIBUSB_RECIPIENT_INTERFACE = 0x01,
LIBUSB_RECIPIENT_ENDPOINT = 0x02,
LIBUSB_RECIPIENT_OTHER = 0x03,
};
#define LIBUSB_ISO_SYNC_TYPE_MASK 0x0C
enum libusb_iso_sync_type {
LIBUSB_ISO_SYNC_TYPE_NONE = 0,
LIBUSB_ISO_SYNC_TYPE_ASYNC = 1,
LIBUSB_ISO_SYNC_TYPE_ADAPTIVE = 2,
LIBUSB_ISO_SYNC_TYPE_SYNC = 3,
};
#define LIBUSB_ISO_USAGE_TYPE_MASK 0x30
enum libusb_iso_usage_type {
LIBUSB_ISO_USAGE_TYPE_DATA = 0,
LIBUSB_ISO_USAGE_TYPE_FEEDBACK = 1,
LIBUSB_ISO_USAGE_TYPE_IMPLICIT = 2,
};
enum libusb_error {
LIBUSB_SUCCESS = 0,
LIBUSB_ERROR_IO = -1,
LIBUSB_ERROR_INVALID_PARAM = -2,
LIBUSB_ERROR_ACCESS = -3,
LIBUSB_ERROR_NO_DEVICE = -4,
LIBUSB_ERROR_NOT_FOUND = -5,
LIBUSB_ERROR_BUSY = -6,
LIBUSB_ERROR_TIMEOUT = -7,
LIBUSB_ERROR_OVERFLOW = -8,
LIBUSB_ERROR_PIPE = -9,
LIBUSB_ERROR_INTERRUPTED = -10,
LIBUSB_ERROR_NO_MEM = -11,
LIBUSB_ERROR_NOT_SUPPORTED = -12,
LIBUSB_ERROR_OTHER = -99,
};
enum libusb_transfer_status {
LIBUSB_TRANSFER_COMPLETED,
LIBUSB_TRANSFER_ERROR,
LIBUSB_TRANSFER_TIMED_OUT,
LIBUSB_TRANSFER_CANCELLED,
LIBUSB_TRANSFER_STALL,
LIBUSB_TRANSFER_NO_DEVICE,
LIBUSB_TRANSFER_OVERFLOW,
};
enum libusb_transfer_flags {
LIBUSB_TRANSFER_SHORT_NOT_OK = 1 << 0,
LIBUSB_TRANSFER_FREE_BUFFER = 1 << 1,
LIBUSB_TRANSFER_FREE_TRANSFER = 1 << 2,
};
enum libusb_debug_level {
LIBUSB_DEBUG_NO=0,
LIBUSB_DEBUG_FUNCTION=1,
LIBUSB_DEBUG_TRANSFER=2,
};
/* libusb structures */
typedef void (*libusb_pollfd_added_cb) (int fd, short events, void *user_data);
typedef void (*libusb_pollfd_removed_cb) (int fd, void *user_data);
typedef struct libusb_context {
int debug;
int debug_fixed;
int ctrl_pipe[2];
struct list_head usb_devs;
pthread_mutex_t usb_devs_lock;
struct list_head open_devs;
pthread_mutex_t open_devs_lock;
struct list_head flying_transfers;
pthread_mutex_t flying_transfers_lock;
struct list_head pollfds;
pthread_mutex_t pollfds_lock;
unsigned int pollfd_modify;
pthread_mutex_t pollfd_modify_lock;
libusb_pollfd_added_cb fd_added_cb;
libusb_pollfd_removed_cb fd_removed_cb;
void *fd_cb_user_data;
pthread_mutex_t events_lock;
int event_handler_active;
pthread_mutex_t event_waiters_lock;
pthread_cond_t event_waiters_cond;
} libusb_context;
typedef struct libusb_device {
pthread_mutex_t lock;
int refcnt;
struct libusb_context *ctx;
uint8_t bus_number;
uint8_t device_address;
uint8_t num_configurations;
struct list_head list;
unsigned long session_data;
void *os_priv;
} libusb_device;
typedef struct libusb_device_handle {
pthread_mutex_t lock;
unsigned long claimed_interfaces;
struct list_head list;
struct libusb_device *dev;
void *os_priv;
} libusb_device_handle;
typedef struct libusb_device_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdUSB;
uint8_t bDeviceClass;
uint8_t bDeviceSubClass;
uint8_t bDeviceProtocol;
uint8_t bMaxPacketSize0;
uint16_t idVendor;
uint16_t idProduct;
uint16_t bcdDevice;
uint8_t iManufacturer;
uint8_t iProduct;
uint8_t iSerialNumber;
uint8_t bNumConfigurations;
} libusb_device_descriptor;
typedef struct libusb_endpoint_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
uint16_t wMaxPacketSize;
uint8_t bInterval;
uint8_t bRefresh;
uint8_t bSynchAddress;
unsigned char *extra;
int extra_length;
} libusb_endpoint_descriptor __aligned(sizeof(void *));
typedef struct libusb_interface_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bNumEndpoints;
uint8_t bInterfaceClass;
uint8_t bInterfaceSubClass;
uint8_t bInterfaceProtocol;
uint8_t iInterface;
struct libusb_endpoint_descriptor *endpoint;
unsigned char *extra;
int extra_length;
} libusb_interface_descriptor __aligned(sizeof(void *));
typedef struct libusb_interface {
struct libusb_interface_descriptor *altsetting;
int num_altsetting;
} libusb_interface __aligned(sizeof(void *));
typedef struct libusb_config_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumInterfaces;
uint8_t bConfigurationValue;
uint8_t iConfiguration;
uint8_t bmAttributes;
uint8_t MaxPower;
struct libusb_interface *interface;
unsigned char *extra;
int extra_length;
} libusb_config_descriptor __aligned(sizeof(void *));
typedef struct libusb_control_setup {
uint8_t bmRequestType;
uint8_t bRequest;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
} libusb_control_setup;
typedef struct libusb_iso_packet_descriptor {
unsigned int length;
unsigned int actual_length;
enum libusb_transfer_status status;
} libusb_iso_packet_descriptor __aligned(sizeof(void *));
struct libusb_transfer;
typedef void (*libusb_transfer_cb_fn) (struct libusb_transfer *transfer);
typedef struct libusb_transfer {
libusb_device_handle *dev_handle;
uint8_t flags;
unsigned int endpoint;
unsigned char type;
unsigned int timeout;
enum libusb_transfer_status status;
int length;
int actual_length;
libusb_transfer_cb_fn callback;
void *user_data;
unsigned char *buffer;
void *os_priv;
int num_iso_packets;
struct libusb_iso_packet_descriptor iso_packet_desc[0];
} libusb_transfer __aligned(sizeof(void *));
typedef struct libusb_pollfd {
int fd;
short events;
} libusb_pollfd;
/* Library initialisation */
void libusb_set_debug(libusb_context * ctx, int level);
int libusb_init(libusb_context ** context);
void libusb_exit(struct libusb_context *ctx);
/* Device handling and enumeration */
ssize_t libusb_get_device_list(libusb_context * ctx, libusb_device *** list);
void libusb_free_device_list(libusb_device ** list, int unref_devices);
uint8_t libusb_get_bus_number(libusb_device * dev);
uint8_t libusb_get_device_address(libusb_device * dev);
int libusb_get_max_packet_size(libusb_device * dev, unsigned char endpoint);
libusb_device *libusb_ref_device(libusb_device * dev);
void libusb_unref_device(libusb_device * dev);
int libusb_open(libusb_device * dev, libusb_device_handle ** devh);
libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context * ctx, uint16_t vendor_id, uint16_t product_id);
void libusb_close(libusb_device_handle * devh);
libusb_device *libusb_get_device(libusb_device_handle * devh);
int libusb_get_configuration(libusb_device_handle * devh, int *config);
int libusb_set_configuration(libusb_device_handle * devh, int configuration);
int libusb_claim_interface(libusb_device_handle * devh, int interface_number);
int libusb_release_interface(libusb_device_handle * devh, int interface_number);
int libusb_kernel_driver_active(libusb_device_handle * devh, int interface);
int libusb_detach_kernel_driver(libusb_device_handle * devh, int interface);
int libusb_attach_kernel_driver(libusb_device_handle * devh, int interface);
int libusb_set_interface_alt_setting(libusb_device_handle * devh, int interface_number, int alternate_setting);
/* USB Descriptors */
int libusb_get_device_descriptor(libusb_device * dev, struct libusb_device_descriptor *desc);
int libusb_get_active_config_descriptor(libusb_device * dev, struct libusb_config_descriptor **config);
int libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index, struct libusb_config_descriptor **config);
int libusb_get_config_descriptor_by_value(libusb_device * dev, uint8_t bConfigurationValue, struct libusb_config_descriptor **config);
void libusb_free_config_descriptor(struct libusb_config_descriptor *config);
int libusb_get_string_descriptor_ascii(libusb_device_handle * dev, uint8_t desc_index, unsigned char *data, int length);
/* Asynchronous device I/O*/
struct libusb_transfer *libusb_alloc_transfer(int iso_packets);
void libusb_free_transfer(struct libusb_transfer *transfer);
int libusb_submit_transfer(struct libusb_transfer *transfer);
int libusb_cancel_transfer(struct libusb_transfer *transfer);
unsigned char *libusb_get_iso_packet_buffer_simple(struct libusb_transfer *transfer, unsigned int packet);
/* Polling and timing */
int libusb_try_lock_events(libusb_context * ctx);
void libusb_lock_events(libusb_context * ctx);
void libusb_unlock_events(libusb_context * ctx);
int libusb_event_handling_ok(libusb_context * ctx);
int libusb_event_handler_active(libusb_context * ctx);
void libusb_lock_event_waiters(libusb_context * ctx);
void libusb_unlock_event_waiters(libusb_context * ctx);
int libusb_wait_for_event(libusb_context * ctx, struct timeval *tv);
int libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv);
int libusb_handle_events(libusb_context * ctx);
int libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv);
int libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv);
void libusb_set_pollfd_notifiers(libusb_context * ctx, libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, void *user_data);
struct libusb_pollfd **libusb_get_pollfds(libusb_context * ctx);
/* Synchronous device I/O */
int libusb_control_transfer(libusb_device_handle * devh, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, unsigned char *data, uint16_t wLength, unsigned int timeout);
int libusb_bulk_transfer(struct libusb_device_handle *devh, unsigned char endpoint, unsigned char *data, int length, int *transferred, unsigned int timeout);
int libusb_interrupt_transfer(struct libusb_device_handle *devh, unsigned char endpoint, unsigned char *data, int length, int *transferred, unsigned int timeout);
#if 0
{ /* indent fix */
#endif
#ifdef __cplusplus
}
#endif
#endif /* __LIBUSB_H__ */

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/* $FreeBSD$ */
/*-
* 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__
/*
* The two following macros were taken from the original LibUSB v1.0
* for sake of compatibility:
*/
#define USB_LIST_INIT(entry) \
(entry)->prev = (entry)->next = entry;
#define USB_LIST_EMPTY(entry) \
((entry)->next = (entry))
#define LIST_ADD(entry, head) \
(entry)->next = (head)->next; \
(entry)->prev = (head); \
(head)->next->prev = (entry); \
(head)->next = (entry);
#define LIST_ADD_TAIL(entry, head) \
(entry)->next = (head); \
(entry)->prev = (head)->prev; \
(head)->prev->next = (entry); \
(head)->prev = (entry);
#define LIST_DEL(entry) \
(entry)->next->prev = (entry)->prev; \
(entry)->prev->next = (entry)->next;
#define LIST_ENT(ptr, type, member) \
((type *)((char *)(ptr) - (unsigned long) (&((type*)0L)->member)))
#define LIST_FOREACH_ENTRY(pos, head, member) \
for (pos = LIST_ENT((head)->next, typeof(*pos), member) ; \
&pos->member != head ; \
pos = LIST_ENT(pos->member.next, typeof(*pos), member))
#define LIST_FOREACH_ENTRY_SAFE(pos, n, head, member) \
for (pos = LIST_ENT((head)->next, typeof(*pos), member), \
n = LIST_ENT(pos->member.next, typeof(*pos), member); \
&pos->member != (head); \
pos = n, n = LIST_ENT(n->member.next, typeof(*n), member))
/* fetch libusb20_transfer from libusb20_device */
#define GET_XFER(xfer, endpoint, pdev)\
xfer = libusb20_tr_get_pointer(pdev, \
(2 *endpoint)|(endpoint/0x80)); \
if (xfer == NULL) \
return (LIBUSB_ERROR_OTHER);
static int get_next_timeout(libusb_context *ctx, struct timeval *tv, struct timeval *out);
static int handle_timeouts(struct libusb_context *ctx);
static int handle_events(struct libusb_context *ctx, struct timeval *tv);
extern struct libusb_context *usbi_default_context;
extern pthread_mutex_t libusb20_lock;
/* if ctx is NULL use default context*/
#define GET_CONTEXT(ctx) \
if (ctx == NULL) ctx = usbi_default_context;
#define MAX(a,b) (((a)>(b))?(a):(b))
#define USB_TIMED_OUT (1<<0)
static inline void
dprintf(libusb_context *ctx, int debug, char *str)
{
if (ctx->debug != debug)
return ;
switch (ctx->debug) {
case LIBUSB_DEBUG_NO:
break ;
case LIBUSB_DEBUG_FUNCTION:
printf("LIBUSB FUNCTION : %s\n", str);
break ;
case LIBUSB_DEBUG_TRANSFER:
printf("LIBUSB TRANSFER : %s\n", str);
break ;
default:
printf("LIBUSB UNKNOW DEBUG\n");
break ;
}
return ;
}
struct usb_pollfd {
struct libusb_pollfd pollfd;
struct list_head list;
};
struct usb_transfer {
int num_iso_packets;
struct list_head list;
struct timeval timeout;
int transferred;
uint8_t flags;
};
static inline int
usb_add_pollfd(libusb_context *ctx, int fd, short events)
{
struct usb_pollfd *pollfd;
if (ctx == NULL)
return (LIBUSB_ERROR_INVALID_PARAM);
pollfd = malloc(sizeof(*pollfd));
if (pollfd == NULL)
return (LIBUSB_ERROR_NO_MEM);
pollfd->pollfd.fd = fd;
pollfd->pollfd.events = events;
pthread_mutex_lock(&ctx->pollfds_lock);
LIST_ADD_TAIL(&pollfd->list, &ctx->pollfds);
pthread_mutex_unlock(&ctx->pollfds_lock);
if (ctx->fd_added_cb)
ctx->fd_added_cb(fd, events, ctx->fd_cb_user_data);
return (0);
}
static inline void
usb_remove_pollfd(libusb_context *ctx, int fd)
{
struct usb_pollfd *pollfd;
int found;
found = 0;
pthread_mutex_lock(&ctx->pollfds_lock);
LIST_FOREACH_ENTRY(pollfd, &ctx->pollfds, list) {
if (pollfd->pollfd.fd == fd) {
found = 1;
break ;
}
}
if (found == 0) {
pthread_mutex_unlock(&ctx->pollfds_lock);
return ;
}
LIST_DEL(&pollfd->list);
pthread_mutex_unlock(&ctx->pollfds_lock);
free(pollfd);
if (ctx->fd_removed_cb)
ctx->fd_removed_cb(fd, ctx->fd_cb_user_data);
}
static inline void
usb_handle_transfer_completion(struct usb_transfer *uxfer,
enum libusb_transfer_status status)
{
libusb_transfer *xfer;
libusb_context *ctx;
int len;
xfer = (struct libusb_transfer *) ((uint8_t *)uxfer +
sizeof(struct usb_transfer));
ctx = xfer->dev_handle->dev->ctx;
pthread_mutex_lock(&ctx->flying_transfers_lock);
LIST_DEL(&uxfer->list);
pthread_mutex_unlock(&ctx->flying_transfers_lock);
if (status == LIBUSB_TRANSFER_COMPLETED && xfer->flags &
LIBUSB_TRANSFER_SHORT_NOT_OK) {
len = xfer->length;
if (xfer->type == LIBUSB_TRANSFER_TYPE_CONTROL)
len -= sizeof(libusb_control_setup);
if (len != uxfer->transferred) {
status = LIBUSB_TRANSFER_ERROR;
}
}
xfer->status = status;
xfer->actual_length = uxfer->transferred;
if (xfer->callback)
xfer->callback(xfer);
if (xfer->flags & LIBUSB_TRANSFER_FREE_TRANSFER)
libusb_free_transfer(xfer);
pthread_mutex_lock(&ctx->event_waiters_lock);
pthread_cond_broadcast(&ctx->event_waiters_cond);
pthread_mutex_unlock(&ctx->event_waiters_lock);
}
static inline void
usb_handle_disconnect(struct libusb_device_handle *devh)
{
struct libusb_context *ctx;
struct libusb_transfer *xfer;
struct usb_transfer *cur;
struct usb_transfer *to_cancel;
ctx = devh->dev->ctx;
while (1) {
pthread_mutex_lock(&ctx->flying_transfers_lock);
to_cancel = NULL;
LIST_FOREACH_ENTRY(cur, &ctx->flying_transfers, list) {
xfer = (struct libusb_transfer *) ((uint8_t *)cur +
sizeof(struct usb_transfer));
if (xfer->dev_handle == devh) {
to_cancel = cur;
break ;
}
}
pthread_mutex_unlock(&ctx->flying_transfers_lock);
if (to_cancel == NULL)
break ;
usb_handle_transfer_completion(to_cancel, LIBUSB_TRANSFER_NO_DEVICE);
}
return ;
}
#endif /*__LIBUSB10_H__*/

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/* $FreeBSD$ */
/*-
* 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.
*/
#include <sys/queue.h>
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
#include "libusb20.h"
#include "libusb20_desc.h"
#include "libusb20_int.h"
#include "libusb.h"
#include "libusb10.h"
/* USB descriptors */
int
libusb_get_device_descriptor(libusb_device * dev,
struct libusb_device_descriptor *desc)
{
struct LIBUSB20_DEVICE_DESC_DECODED *pdesc;
struct libusb20_device *pdev;
libusb_context *ctx;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_device_descriptor enter");
if ((dev == NULL) || (desc == NULL))
return (LIBUSB_ERROR_INVALID_PARAM);
pdev = dev->os_priv;
pdesc = libusb20_dev_get_device_desc(pdev);
desc->bLength = pdesc->bLength;
desc->bDescriptorType = pdesc->bDescriptorType;
desc->bcdUSB = pdesc->bcdUSB;
desc->bDeviceClass = pdesc->bDeviceClass;
desc->bDeviceSubClass = pdesc->bDeviceSubClass;
desc->bDeviceProtocol = pdesc->bDeviceProtocol;
desc->bMaxPacketSize0 = pdesc->bMaxPacketSize0;
desc->idVendor = pdesc->idVendor;
desc->idProduct = pdesc->idProduct;
desc->bcdDevice = pdesc->bcdDevice;
desc->iManufacturer = pdesc->iManufacturer;
desc->iProduct = pdesc->iProduct;
desc->iSerialNumber = pdesc->iSerialNumber;
desc->bNumConfigurations = pdesc->bNumConfigurations;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_device_descriptor leave");
return (0);
}
int
libusb_get_active_config_descriptor(libusb_device * dev,
struct libusb_config_descriptor **config)
{
struct libusb20_device *pdev;
libusb_context *ctx;
uint8_t idx;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_active_config_descriptor enter");
pdev = dev->os_priv;
idx = libusb20_dev_get_config_index(pdev);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_active_config_descriptor leave");
return (libusb_get_config_descriptor(dev, idx, config));
}
/*
* XXX Need to check if extra need a dup because
* XXX free pconf could free this char *
*/
int
libusb_get_config_descriptor(libusb_device * dev, uint8_t config_index,
struct libusb_config_descriptor **config)
{
struct libusb20_device *pdev;
struct libusb20_config *pconf;
struct libusb20_interface *pinf;
struct libusb20_endpoint *pend;
libusb_interface_descriptor *ifd;
libusb_endpoint_descriptor *endd;
libusb_context *ctx;
uint8_t nif, nend, nalt, i, j, k;
uint32_t if_idx, endp_idx;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_config_descriptor enter");
if (dev == NULL || config == NULL)
return (LIBUSB_ERROR_INVALID_PARAM);
pdev = dev->os_priv;
pconf = libusb20_dev_alloc_config(pdev, config_index);
if (pconf == NULL)
return (LIBUSB_ERROR_NOT_FOUND);
nalt = nif = pconf->num_interface;
nend = 0;
for (i = 0 ; i < nif ; i++) {
if (pconf->interface[i].num_altsetting > 0)
{
nalt += pconf->interface[i].num_altsetting;
for (j = 0 ; j < nalt ; j++) {
nend += pconf->interface[i].altsetting[j].num_endpoints;
}
}
nend += pconf->interface[i].num_endpoints;
}
*config = malloc(sizeof(libusb_config_descriptor) +
(nif * sizeof(libusb_interface)) +
(nalt * sizeof(libusb_interface_descriptor)) +
(nend * sizeof(libusb_endpoint_descriptor)));
if (*config == NULL) {
free(pconf);
return (LIBUSB_ERROR_NO_MEM);
}
(*config)->interface = (libusb_interface *)(*config +
sizeof(libusb_config_descriptor));
for (i = if_idx = endp_idx = 0 ; i < nif ; if_idx, i++) {
(*config)->interface[i].altsetting = (libusb_interface_descriptor *)
(*config + sizeof(libusb_config_descriptor) +
(nif * sizeof(libusb_interface)) +
(if_idx * sizeof(libusb_interface_descriptor)));
(*config)->interface[i].altsetting[0].endpoint =
(libusb_endpoint_descriptor *) (*config +
sizeof(libusb_config_descriptor) +
(nif * sizeof(libusb_interface)) +
(nalt * sizeof(libusb_interface_descriptor)) +
(endp_idx * sizeof(libusb_endpoint_descriptor)));
endp_idx += pconf->interface[i].num_endpoints;
if (pconf->interface[i].num_altsetting > 0)
{
for (j = 0 ; j < pconf->interface[i].num_altsetting ; j++, if_idx++) {
(*config)->interface[i].altsetting[j + 1].endpoint =
(libusb_endpoint_descriptor *) (*config +
sizeof(libusb_config_descriptor) +
(nif * sizeof(libusb_interface)) +
(nalt * sizeof(libusb_interface_descriptor)) +
(endp_idx * sizeof(libusb_endpoint_descriptor)));
endp_idx += pconf->interface[i].altsetting[j].num_endpoints;
}
}
}
(*config)->bLength = pconf->desc.bLength;
(*config)->bDescriptorType = pconf->desc.bDescriptorType;
(*config)->wTotalLength = pconf->desc.wTotalLength;
(*config)->bNumInterfaces = pconf->desc.bNumInterfaces;
(*config)->bConfigurationValue = pconf->desc.bConfigurationValue;
(*config)->iConfiguration = pconf->desc.iConfiguration;
(*config)->bmAttributes = pconf->desc.bmAttributes;
(*config)->MaxPower = pconf->desc.bMaxPower;
(*config)->extra_length = pconf->extra.len;
if ((*config)->extra_length != 0)
(*config)->extra = pconf->extra.ptr;
for (i = 0 ; i < nif ; i++) {
pinf = &pconf->interface[i];
(*config)->interface[i].num_altsetting = pinf->num_altsetting + 1;
for (j = 0 ; j < (*config)->interface[i].num_altsetting ; j++) {
if (j != 0)
pinf = &pconf->interface[i].altsetting[j - 1];
ifd = &(*config)->interface[i].altsetting[j];
ifd->bLength = pinf->desc.bLength;
ifd->bDescriptorType = pinf->desc.bDescriptorType;
ifd->bInterfaceNumber = pinf->desc.bInterfaceNumber;
ifd->bAlternateSetting = pinf->desc.bAlternateSetting;
ifd->bNumEndpoints = pinf->desc.bNumEndpoints;
ifd->bInterfaceClass = pinf->desc.bInterfaceClass;
ifd->bInterfaceSubClass = pinf->desc.bInterfaceSubClass;
ifd->bInterfaceProtocol = pinf->desc.bInterfaceProtocol;
ifd->iInterface = pinf->desc.iInterface;
ifd->extra_length = pinf->extra.len;
if (ifd->extra_length != 0)
ifd->extra = pinf->extra.ptr;
for (k = 0 ; k < pinf->num_endpoints ; k++) {
pend = &pinf->endpoints[k];
endd = &ifd->endpoint[k];
endd->bLength = pend->desc.bLength;
endd->bDescriptorType = pend->desc.bDescriptorType;
endd->bEndpointAddress = pend->desc.bEndpointAddress;
endd->bmAttributes = pend->desc.bmAttributes;
endd->wMaxPacketSize = pend->desc.wMaxPacketSize;
endd->bInterval = pend->desc.bInterval;
endd->bRefresh = pend->desc.bRefresh;
endd->bSynchAddress = pend->desc.bSynchAddress;
endd->extra_length = pend->extra.len;
if (endd->extra_length != 0)
endd->extra = pend->extra.ptr;
}
}
}
free(pconf);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_config_descriptor leave");
return (0);
}
int
libusb_get_config_descriptor_by_value(libusb_device * dev,
uint8_t bConfigurationValue, struct libusb_config_descriptor **config)
{
struct LIBUSB20_DEVICE_DESC_DECODED *pdesc;
struct libusb20_device *pdev;
struct libusb20_config *pconf;
libusb_context *ctx;
int i;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_config_descriptor_by_value enter");
if (dev == NULL || config == NULL)
return (LIBUSB_ERROR_INVALID_PARAM);
pdev = dev->os_priv;
pdesc = libusb20_dev_get_device_desc(pdev);
for (i = 0 ; i < pdesc->bNumConfigurations ; i++) {
pconf = libusb20_dev_alloc_config(pdev, i);
if (pconf->desc.bConfigurationValue == bConfigurationValue) {
free(pconf);
return libusb_get_config_descriptor(dev, i, config);
}
free(pconf);
}
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_config_descriptor_by_value leave");
return (LIBUSB_ERROR_NOT_FOUND);
}
void
libusb_free_config_descriptor(struct libusb_config_descriptor *config)
{
libusb_context *ctx;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_free_config_descriptor enter");
free(config);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_free_config_descriptor leave");
}
int
libusb_get_string_descriptor_ascii(libusb_device_handle * dev,
uint8_t desc_index, unsigned char *data, int length)
{
struct libusb20_device *pdev;
libusb_context *ctx;
int ret;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_string_descriptor_ascii enter");
if (dev == NULL || data == NULL)
return (LIBUSB20_ERROR_INVALID_PARAM);
pdev = dev->os_priv;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_string_descriptor_ascii leave");
if (libusb20_dev_req_string_simple_sync(pdev, desc_index,
data, length) == 0)
return (strlen(data));
return (LIBUSB_ERROR_OTHER);
}

748
lib/libusb/libusb10_io.c Normal file
View File

@ -0,0 +1,748 @@
/* $FreeBSD$ */
/*-
* 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.
*/
#include <sys/queue.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <poll.h>
#include <pthread.h>
#include <time.h>
#include <errno.h>
#include "libusb20.h"
#include "libusb20_desc.h"
#include "libusb20_int.h"
#include "libusb.h"
#include "libusb10.h"
static int
get_next_timeout(libusb_context *ctx, struct timeval *tv, struct timeval *out)
{
struct timeval timeout;
int ret;
ret = libusb_get_next_timeout(ctx, &timeout);
if (ret) {
if (timerisset(&timeout) == 0)
return 1;
if (timercmp(&timeout, tv, <) != 0)
*out = timeout;
else
*out = *tv;
} else {
*out = *tv;
}
return (0);
}
static int
handle_timeouts(struct libusb_context *ctx)
{
struct timespec sys_ts;
struct timeval sys_tv;
struct timeval *cur_tv;
struct usb_transfer *xfer;
struct libusb_transfer *uxfer;
int ret;
GET_CONTEXT(ctx);
ret = 0;
pthread_mutex_lock(&ctx->flying_transfers_lock);
if (USB_LIST_EMPTY(&ctx->flying_transfers))
goto out;
ret = clock_gettime(CLOCK_MONOTONIC, &sys_ts);
TIMESPEC_TO_TIMEVAL(&sys_tv, &sys_ts);
LIST_FOREACH_ENTRY(xfer, &ctx->flying_transfers, list) {
cur_tv = &xfer->timeout;
if (timerisset(cur_tv) == 0)
goto out;
if (xfer->flags & USB_TIMED_OUT)
continue;
if ((cur_tv->tv_sec > sys_tv.tv_sec) || (cur_tv->tv_sec == sys_tv.tv_sec &&
cur_tv->tv_usec > sys_tv.tv_usec))
goto out;
xfer->flags |= USB_TIMED_OUT;
uxfer = (libusb_transfer *) ((uint8_t *)xfer +
sizeof(struct usb_transfer));
ret = libusb_cancel_transfer(uxfer);
}
out:
pthread_mutex_unlock(&ctx->flying_transfers_lock);
return (ret);
}
static int
handle_events(struct libusb_context *ctx, struct timeval *tv)
{
struct libusb_pollfd *tmppollfd;
struct libusb_device_handle *devh;
struct usb_pollfd *ipollfd;
struct usb_transfer *cur;
struct usb_transfer *cancel;
struct libusb_transfer *xfer;
struct pollfd *fds;
struct pollfd *tfds;
nfds_t nfds;
int tmpfd;
int tmp;
int ret;
int timeout;
int i;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "handle_events enter");
nfds = 0;
i = -1;
pthread_mutex_lock(&ctx->pollfds_lock);
LIST_FOREACH_ENTRY(ipollfd, &ctx->pollfds, list)
nfds++;
fds = malloc(sizeof(*fds) * nfds);
if (fds == NULL)
return (LIBUSB_ERROR_NO_MEM);
LIST_FOREACH_ENTRY(ipollfd, &ctx->pollfds, list) {
tmppollfd = &ipollfd->pollfd;
tmpfd = tmppollfd->fd;
i++;
fds[i].fd = tmpfd;
fds[i].events = tmppollfd->events;
fds[i].revents = 0;
}
pthread_mutex_unlock(&ctx->pollfds_lock);
timeout = (tv->tv_sec * 1000) + (tv->tv_usec / 1000);
if (tv->tv_usec % 1000)
timeout++;
ret = poll(fds, nfds, timeout);
if (ret == 0) {
free(fds);
return (handle_timeouts(ctx));
} else if (ret == -1 && errno == EINTR) {
free(fds);
return (LIBUSB_ERROR_INTERRUPTED);
} else if (ret < 0) {
free(fds);
return (LIBUSB_ERROR_IO);
}
if (fds[0].revents) {
if (ret == 1){
ret = 0;
goto handled;
} else {
fds[0].revents = 0;
ret--;
}
}
pthread_mutex_lock(&ctx->open_devs_lock);
for (i = 0 ; i < nfds && ret > 0 ; i++) {
tfds = &fds[i];
if (!tfds->revents)
continue;
ret--;
LIST_FOREACH_ENTRY(devh, &ctx->open_devs, list) {
if (libusb20_dev_get_fd(devh->os_priv) == tfds->fd)
break ;
}
if (tfds->revents & POLLERR) {
usb_remove_pollfd(ctx, libusb20_dev_get_fd(devh->os_priv));
usb_handle_disconnect(devh);
continue ;
}
pthread_mutex_lock(&libusb20_lock);
dprintf(ctx, LIBUSB_DEBUG_TRANSFER, "LIBUSB20_PROCESS");
ret = libusb20_dev_process(devh->os_priv);
pthread_mutex_unlock(&libusb20_lock);
if (ret == 0 || ret == LIBUSB20_ERROR_NO_DEVICE)
continue;
else if (ret < 0)
goto out;
}
ret = 0;
out:
pthread_mutex_unlock(&ctx->open_devs_lock);
handled:
free(fds);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "handle_events leave");
return ret;
}
/* Polling and timing */
int
libusb_try_lock_events(libusb_context * ctx)
{
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_try_lock_events enter");
pthread_mutex_lock(&ctx->pollfd_modify_lock);
ret = ctx->pollfd_modify;
pthread_mutex_unlock(&ctx->pollfd_modify_lock);
if (ret != 0)
return (1);
ret = pthread_mutex_trylock(&ctx->events_lock);
if (ret != 0)
return (1);
ctx->event_handler_active = 1;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_try_lock_events leave");
return (0);
}
void
libusb_lock_events(libusb_context * ctx)
{
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_lock_events enter");
pthread_mutex_lock(&ctx->events_lock);
ctx->event_handler_active = 1;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_lock_events leave");
}
void
libusb_unlock_events(libusb_context * ctx)
{
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_unlock_events enter");
ctx->event_handler_active = 0;
pthread_mutex_unlock(&ctx->events_lock);
pthread_mutex_lock(&ctx->event_waiters_lock);
pthread_cond_broadcast(&ctx->event_waiters_cond);
pthread_mutex_unlock(&ctx->event_waiters_lock);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_unlock_events leave");
}
int
libusb_event_handling_ok(libusb_context * ctx)
{
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_event_handling_ok enter");
pthread_mutex_lock(&ctx->pollfd_modify_lock);
ret = ctx->pollfd_modify;
pthread_mutex_unlock(&ctx->pollfd_modify_lock);
if (ret != 0)
return (0);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_event_handling_ok leave");
return (1);
}
int
libusb_event_handler_active(libusb_context * ctx)
{
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_event_handler_active enter");
pthread_mutex_lock(&ctx->pollfd_modify_lock);
ret = ctx->pollfd_modify;
pthread_mutex_unlock(&ctx->pollfd_modify_lock);
if (ret != 0)
return (1);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_event_handler_active leave");
return (ctx->event_handler_active);
}
void
libusb_lock_event_waiters(libusb_context * ctx)
{
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_lock_event_waiters enter");
pthread_mutex_lock(&ctx->event_waiters_lock);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_lock_event_waiters leave");
}
void
libusb_unlock_event_waiters(libusb_context * ctx)
{
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_unlock_event_waiters enter");
pthread_mutex_unlock(&ctx->event_waiters_lock);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_unlock_event_waiters leave");
}
int
libusb_wait_for_event(libusb_context * ctx, struct timeval *tv)
{
int ret;
struct timespec ts;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_wait_for_event enter");
if (tv == NULL) {
pthread_cond_wait(&ctx->event_waiters_cond,
&ctx->event_waiters_lock);
return (0);
}
ret = clock_gettime(CLOCK_REALTIME, &ts);
if (ret < 0)
return (LIBUSB_ERROR_OTHER);
ts.tv_sec = tv->tv_sec;
ts.tv_nsec = tv->tv_usec * 1000;
if (ts.tv_nsec > 1000000000) {
ts.tv_nsec -= 1000000000;
ts.tv_sec++;
}
ret = pthread_cond_timedwait(&ctx->event_waiters_cond,
&ctx->event_waiters_lock, &ts);
if (ret == ETIMEDOUT)
return (1);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_wait_for_event leave");
return (0);
}
int
libusb_handle_events_timeout(libusb_context * ctx, struct timeval *tv)
{
struct timeval timeout;
struct timeval poll_timeout;
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events_timeout enter");
ret = get_next_timeout(ctx, tv, &poll_timeout);
if (ret != 0) {
return handle_timeouts(ctx);
}
retry:
if (libusb_try_lock_events(ctx) == 0) {
ret = handle_events(ctx, &poll_timeout);
libusb_unlock_events(ctx);
return ret;
}
libusb_lock_event_waiters(ctx);
if (libusb_event_handler_active(ctx) == 0) {
libusb_unlock_event_waiters(ctx);
goto retry;
}
ret = libusb_wait_for_event(ctx, &poll_timeout);
libusb_unlock_event_waiters(ctx);
if (ret < 0)
return ret;
else if (ret == 1)
return (handle_timeouts(ctx));
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events_timeout leave");
return (0);
}
int
libusb_handle_events(libusb_context * ctx)
{
struct timeval tv;
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events enter");
tv.tv_sec = 2;
tv.tv_usec = 0;
ret = libusb_handle_events_timeout(ctx, &tv);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events leave");
return (ret);
}
int
libusb_handle_events_locked(libusb_context * ctx, struct timeval *tv)
{
int ret;
struct timeval poll_tv;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events_locked enter");
ret = get_next_timeout(ctx, tv, &poll_tv);
if (ret != 0) {
return handle_timeouts(ctx);
}
ret = handle_events(ctx, &poll_tv);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_handle_events_locked leave");
return (ret);
}
int
libusb_get_next_timeout(libusb_context * ctx, struct timeval *tv)
{
struct usb_transfer *xfer;
struct timeval *next_tv;
struct timeval cur_tv;
struct timespec cur_ts;
int found;
int ret;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_next_timeout enter");
found = 0;
pthread_mutex_lock(&ctx->flying_transfers_lock);
if (USB_LIST_EMPTY(&ctx->flying_transfers)) {
pthread_mutex_unlock(&ctx->flying_transfers_lock);
return (0);
}
LIST_FOREACH_ENTRY(xfer, &ctx->flying_transfers, list) {
if (!(xfer->flags & USB_TIMED_OUT)) {
found = 1;
break ;
}
}
pthread_mutex_unlock(&ctx->flying_transfers_lock);
if (found == 0) {
return 0;
}
next_tv = &xfer->timeout;
if (timerisset(next_tv) == 0)
return (0);
ret = clock_gettime(CLOCK_MONOTONIC, &cur_ts);
if (ret < 0)
return (LIBUSB_ERROR_OTHER);
TIMESPEC_TO_TIMEVAL(&cur_tv, &cur_ts);
if (timercmp(&cur_tv, next_tv, >=) != 0)
timerclear(tv);
else
timersub(next_tv, &cur_tv, tv);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_next_timeout leave");
return (1);
}
void
libusb_set_pollfd_notifiers(libusb_context * ctx,
libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb,
void *user_data)
{
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_set_pollfd_notifiers enter");
ctx->fd_added_cb = added_cb;
ctx->fd_removed_cb = removed_cb;
ctx->fd_cb_user_data = user_data;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_set_pollfd_notifiers leave");
}
struct libusb_pollfd **
libusb_get_pollfds(libusb_context * ctx)
{
struct usb_pollfd *pollfd;
libusb_pollfd **ret;
int i;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_pollfds enter");
i = 0;
pthread_mutex_lock(&ctx->pollfds_lock);
LIST_FOREACH_ENTRY(pollfd, &ctx->pollfds, list)
i++;
ret = calloc(i + 1 , sizeof(struct libusb_pollfd *));
if (ret == NULL) {
pthread_mutex_unlock(&ctx->pollfds_lock);
return (ret);
}
i = 0;
LIST_FOREACH_ENTRY(pollfd, &ctx->pollfds, list)
ret[i++] = (struct libusb_pollfd *) pollfd;
ret[i] = NULL;
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_get_pollfds leave");
return (ret);
}
/* Synchronous device I/O */
static void ctrl_tr_cb(struct libusb_transfer *transfer)
{
libusb_context *ctx;
int *complet;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_TRANSFER, "CALLBACK ENTER");
complet = transfer->user_data;
*complet = 1;
}
int
libusb_control_transfer(libusb_device_handle * devh,
uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex,
unsigned char *data, uint16_t wLength, unsigned int timeout)
{
struct libusb_transfer *xfer;
struct libusb_control_setup *ctr;
libusb_context *ctx;
unsigned char *buff;
int complet;
int ret;
ctx = devh->dev->ctx;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_control_transfer enter");
if (devh == NULL || data == NULL)
return (LIBUSB_ERROR_NO_MEM);
xfer = libusb_alloc_transfer(0);
if (xfer == NULL)
return (LIBUSB_ERROR_NO_MEM);
buff = malloc(sizeof(libusb_control_setup) + wLength);
if (buff == NULL) {
libusb_free_transfer(xfer);
return (LIBUSB_ERROR_NO_MEM);
}
ctr = (libusb_control_setup *)buff;
ctr->bmRequestType = bmRequestType;
ctr->bRequest = bRequest;
ctr->wValue = wValue;
ctr->wIndex = wIndex;
ctr->wLength = wLength;
if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_OUT)
memcpy(buff + sizeof(libusb_control_setup), data, wLength);
xfer->dev_handle = devh;
xfer->endpoint = 0;
xfer->type = LIBUSB_TRANSFER_TYPE_CONTROL;
xfer->timeout = timeout;
xfer->buffer = buff;
xfer->length = sizeof(libusb_control_setup) + wLength;
xfer->user_data = &complet;
xfer->callback = ctrl_tr_cb;
xfer->flags = LIBUSB_TRANSFER_FREE_TRANSFER;
complet = 0;
if ((ret = libusb_submit_transfer(xfer)) < 0) {
libusb_free_transfer(xfer);
return (ret);
}
while (complet == 0)
if ((ret = libusb_handle_events(ctx)) < 0) {
libusb_cancel_transfer(xfer);
while (complet == 0)
if (libusb_handle_events(ctx) < 0) {
break;
}
libusb_free_transfer(xfer);
return (ret);
}
if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN)
memcpy(data, buff + sizeof(libusb_control_setup), wLength);
switch (xfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
ret = xfer->actual_length;
break;
case LIBUSB_TRANSFER_TIMED_OUT:
case LIBUSB_TRANSFER_STALL:
case LIBUSB_TRANSFER_NO_DEVICE:
ret = xfer->status;
break;
default:
ret = LIBUSB_ERROR_OTHER;
}
libusb_free_transfer(xfer);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_control_transfer leave");
return (ret);
}
static int
do_transfer(struct libusb_device_handle *devh,
unsigned char endpoint, unsigned char *data, int length,
int *transferred, unsigned int timeout, int type)
{
struct libusb_transfer *xfer;
libusb_context *ctx;
int complet;
int ret;
if (devh == NULL || data == NULL)
return (LIBUSB_ERROR_NO_MEM);
xfer = libusb_alloc_transfer(0);
if (xfer == NULL)
return (LIBUSB_ERROR_NO_MEM);
ctx = devh->dev->ctx;
xfer->dev_handle = devh;
xfer->endpoint = endpoint;
xfer->type = type;
xfer->timeout = timeout;
xfer->buffer = data;
xfer->length = length;
xfer->user_data = &complet;
xfer->callback = ctrl_tr_cb;
complet = 0;
if ((ret = libusb_submit_transfer(xfer)) < 0) {
libusb_free_transfer(xfer);
return (ret);
}
while (complet == 0) {
if ((ret = libusb_handle_events(ctx)) < 0) {
libusb_cancel_transfer(xfer);
libusb_free_transfer(xfer);
while (complet == 0) {
if (libusb_handle_events(ctx) < 0)
break ;
}
return (ret);
}
}
*transferred = xfer->actual_length;
switch (xfer->status) {
case LIBUSB_TRANSFER_COMPLETED:
ret = xfer->actual_length;
break;
case LIBUSB_TRANSFER_TIMED_OUT:
case LIBUSB_TRANSFER_OVERFLOW:
case LIBUSB_TRANSFER_STALL:
case LIBUSB_TRANSFER_NO_DEVICE:
ret = xfer->status;
break;
default:
ret = LIBUSB_ERROR_OTHER;
}
libusb_free_transfer(xfer);
return (ret);
}
int
libusb_bulk_transfer(struct libusb_device_handle *devh,
unsigned char endpoint, unsigned char *data, int length,
int *transferred, unsigned int timeout)
{
libusb_context *ctx;
int ret;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_bulk_transfer enter");
ret = do_transfer(devh, endpoint, data, length, transferred,
timeout, LIBUSB_TRANSFER_TYPE_BULK);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_bulk_transfer leave");
return (ret);
}
/*
* Need to fix xfer->type
*/
int
libusb_interrupt_transfer(struct libusb_device_handle *devh,
unsigned char endpoint, unsigned char *data, int length,
int *transferred, unsigned int timeout)
{
libusb_context *ctx;
int ret;
ctx = NULL;
GET_CONTEXT(ctx);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_interrupt_transfer enter");
ret = do_transfer(devh, endpoint, data, length, transferred,
timeout, LIBUSB_TRANSFER_TYPE_INTERRUPT);
dprintf(ctx, LIBUSB_DEBUG_FUNCTION, "libusb_interrupt_transfer leave");
return (ret);
}