--- /dev/null
+/*
+ * darwin backend for libusb 1.0
+ * Copyright (C) 2008-2009 Nathan Hjelm <hjelmn@users.sourceforge.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <config.h>
+#include <ctype.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <mach/clock.h>
+#include <mach/clock_types.h>
+#include <mach/mach_host.h>
+
+#include <mach/mach_port.h>
+#include <IOKit/IOCFBundle.h>
+#include <IOKit/usb/IOUSBLib.h>
+#include <IOKit/IOCFPlugIn.h>
+
+#include "darwin_usb.h"
+
+static mach_port_t libusb_darwin_mp = 0; /* master port */
+static CFRunLoopRef libusb_darwin_acfl = NULL; /* async cf loop */
+
+/* async event thread */
+static pthread_t libusb_darwin_at;
+
+static int darwin_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian);
+static int darwin_claim_interface(struct libusb_device_handle *dev_handle, int iface);
+static int darwin_release_interface(struct libusb_device_handle *dev_handle, int iface);
+static int darwin_reset_device(struct libusb_device_handle *dev_handle);
+static void darwin_bulk_callback (struct usbi_transfer *itransfer, kern_return_t result, UInt32 io_size);
+static void darwin_isoc_callback (struct usbi_transfer *itransfer, kern_return_t result);
+static void darwin_control_callback (struct usbi_transfer *itransfer, kern_return_t result, UInt32 io_size);
+static void darwin_async_io_callback (void *refcon, IOReturn result, void *arg0);
+
+static char *darwin_error_str (int result) {
+ switch (result) {
+ case kIOReturnSuccess:
+ return "no error";
+ case kIOReturnNotOpen:
+ return "device not opened for exclusive access";
+ case kIOReturnNoDevice:
+ return "no connection to an IOService";
+ case kIOUSBNoAsyncPortErr:
+ return "no async port has been opened for interface";
+ case kIOReturnExclusiveAccess:
+ return "another process has device opened for exclusive access";
+ case kIOUSBPipeStalled:
+ return "pipe is stalled";
+ case kIOReturnError:
+ return "could not establish a connection to the Darwin kernel";
+ case kIOUSBTransactionTimeout:
+ return "transaction timed out";
+ case kIOReturnBadArgument:
+ return "invalid argument";
+ case kIOReturnAborted:
+ return "transaction aborted";
+ case kIOReturnNotResponding:
+ return "device not responding";
+ default:
+ return "unknown error";
+ }
+}
+
+static int darwin_to_libusb (int result) {
+ switch (result) {
+ case kIOReturnSuccess:
+ return LIBUSB_SUCCESS;
+ case kIOReturnNotOpen:
+ case kIOReturnNoDevice:
+ return LIBUSB_ERROR_NO_DEVICE;
+ case kIOReturnExclusiveAccess:
+ return LIBUSB_ERROR_ACCESS;
+ case kIOUSBPipeStalled:
+ return LIBUSB_ERROR_PIPE;
+ case kIOReturnBadArgument:
+ return LIBUSB_ERROR_INVALID_PARAM;
+ case kIOUSBTransactionTimeout:
+ return LIBUSB_ERROR_TIMEOUT;
+ case kIOReturnNotResponding:
+ case kIOReturnAborted:
+ case kIOReturnError:
+ case kIOUSBNoAsyncPortErr:
+ default:
+ return LIBUSB_ERROR_OTHER;
+ }
+}
+
+
+static int ep_to_pipeRef(struct libusb_device_handle *dev_handle, uint8_t ep, uint8_t *pipep, uint8_t *ifcp) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+
+ /* current interface */
+ struct __darwin_interface *cInterface;
+
+ int8_t i, iface;
+
+ _usbi_log (HANDLE_CTX(dev_handle), LOG_LEVEL_INFO, "converting ep address 0x%02x to pipeRef and interface", ep);
+
+ for (iface = 0 ; iface < USB_MAXINTERFACES ; iface++) {
+ cInterface = &priv->interfaces[iface];
+
+ if (dev_handle->claimed_interfaces & (1 << iface)) {
+ for (i = 0 ; i < cInterface->num_endpoints ; i++) {
+ if (cInterface->endpoint_addrs[i] == ep) {
+ *pipep = i + 1;
+ *ifcp = iface;
+ _usbi_log (HANDLE_CTX(dev_handle), LOG_LEVEL_INFO, "pipe %d on interface %d matches", *pipep, *ifcp);
+ return 0;
+ }
+ }
+ }
+ }
+
+ /* No pipe found with the correct endpoint address */
+ _usbi_log (HANDLE_CTX(dev_handle), LOG_LEVEL_WARNING, "no pipeRef found with endpoint address 0x%02x.", ep);
+
+ return -1;
+}
+
+static int usb_setup_device_iterator (io_iterator_t *deviceIterator) {
+ return IOServiceGetMatchingServices(libusb_darwin_mp, IOServiceMatching(kIOUSBDeviceClassName), deviceIterator);
+}
+
+static usb_device_t **usb_get_next_device (io_iterator_t deviceIterator, UInt32 *locationp) {
+ io_cf_plugin_ref_t *plugInInterface = NULL;
+ usb_device_t **device;
+ io_service_t usbDevice;
+ long result, score;
+
+ if (!IOIteratorIsValid (deviceIterator) || !(usbDevice = IOIteratorNext(deviceIterator)))
+ return NULL;
+
+ result = IOCreatePlugInInterfaceForService(usbDevice, kIOUSBDeviceUserClientTypeID,
+ kIOCFPlugInInterfaceID, &plugInInterface,
+ &score);
+
+ if (result || !plugInInterface) {
+ usbi_dbg ("libusb/darwin.c usb_get_next_device: could not set up plugin for service: %s\n", darwin_error_str (result));
+
+ return NULL;
+ }
+
+ (void)IOObjectRelease(usbDevice);
+ (void)(*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(DeviceInterfaceID),
+ (LPVOID)&device);
+
+ (*plugInInterface)->Stop(plugInInterface);
+ IODestroyPlugInInterface (plugInInterface);
+
+ (*(device))->GetLocationID(device, locationp);
+
+ return device;
+}
+
+static kern_return_t darwin_get_device (uint32_t dev_location, usb_device_t ***darwin_device) {
+ kern_return_t kresult;
+ UInt32 location;
+ io_iterator_t deviceIterator;
+
+ kresult = usb_setup_device_iterator (&deviceIterator);
+ if (kresult)
+ return kresult;
+
+ /* This port of libusb uses locations to keep track of devices. */
+ while ((*darwin_device = usb_get_next_device (deviceIterator, &location)) != NULL) {
+ if (location == dev_location)
+ break;
+
+ (**darwin_device)->Release(*darwin_device);
+ }
+
+ IOObjectRelease (deviceIterator);
+
+ if (!(*darwin_device))
+ return kIOReturnNoDevice;
+
+ return kIOReturnSuccess;
+}
+
+
+
+static void darwin_devices_detached (void *ptr, io_iterator_t rem_devices) {
+ struct libusb_context *ctx = (struct libusb_context *)ptr;
+ struct libusb_device_handle *handle;
+ struct darwin_device_priv *dpriv;
+ struct darwin_device_handle_priv *priv;
+
+ io_service_t device;
+ long location;
+ CFTypeRef locationCF;
+ UInt32 message;
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "a device has been detached");
+
+ while ((device = IOIteratorNext (rem_devices)) != 0) {
+ /* get the location from the i/o registry */
+ locationCF = IORegistryEntryCreateCFProperty (device, CFSTR(kUSBDevicePropertyLocationID), kCFAllocatorDefault, 0);
+
+ CFNumberGetValue(locationCF, kCFNumberLongType, &location);
+ CFRelease (locationCF);
+ IOObjectRelease (device);
+
+ list_for_each_entry(handle, &ctx->open_devs, list) {
+ dpriv = (struct darwin_device_priv *)handle->dev->os_priv;
+ if (dpriv->location == location)
+ break;
+ }
+
+ if (handle) {
+ priv = (struct darwin_device_handle_priv *)handle->os_priv;
+
+ message = MESSAGE_DEVICE_GONE;
+ write (priv->fds[1], &message, sizeof (message));
+
+ CFRunLoopRemoveSource (libusb_darwin_acfl, priv->cfSource, kCFRunLoopDefaultMode);
+ CFRelease (priv->cfSource);
+ priv->cfSource = NULL;
+ }
+ }
+}
+
+static void darwin_clear_iterator (io_iterator_t iter) {
+ io_service_t device;
+
+ while ((device = IOIteratorNext (iter)) != 0)
+ IOObjectRelease (device);
+}
+
+static void *event_thread_main (void *arg0) {
+ IOReturn kresult;
+ struct libusb_context *ctx = (struct libusb_context *)arg0;
+
+ /* hotplug (device removal) source */
+ CFRunLoopSourceRef libusb_notification_cfsource;
+ io_notification_port_t libusb_notification_port;
+ io_iterator_t libusb_rem_device_iterator;
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "creating hotplug event source");
+
+ /* add the notification port to the run loop */
+ libusb_notification_port = IONotificationPortCreate (libusb_darwin_mp);
+ libusb_notification_cfsource = IONotificationPortGetRunLoopSource (libusb_notification_port);
+ CFRunLoopAddSource(CFRunLoopGetCurrent (), libusb_notification_cfsource, kCFRunLoopDefaultMode);
+
+ /* create notifications for removed devices */
+ kresult = IOServiceAddMatchingNotification (libusb_notification_port, kIOTerminatedNotification,
+ IOServiceMatching(kIOUSBDeviceClassName),
+ (IOServiceMatchingCallback)darwin_devices_detached,
+ (void *)ctx, &libusb_rem_device_iterator);
+
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (ctx, LOG_LEVEL_ERROR, "could not add hotplug event source: %s", darwin_error_str (kresult));
+
+ pthread_exit ((void *)kresult);
+ }
+
+ /* arm notifiers */
+ darwin_clear_iterator (libusb_rem_device_iterator);
+
+ /* let the main thread know about the async runloop */
+ libusb_darwin_acfl = CFRunLoopGetCurrent ();
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "libopenusb/darwin.c event_thread_main: thread ready to receive events");
+
+ /* run the runloop */
+ CFRunLoopRun();
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "libopenusb/darwin.c event_thread_main: thread exiting");
+
+ /* delete notification port */
+ CFRunLoopSourceInvalidate (libusb_notification_cfsource);
+ IONotificationPortDestroy (libusb_notification_port);
+
+ libusb_darwin_acfl = NULL;
+
+ pthread_exit (0);
+}
+
+static int darwin_init(struct libusb_context *ctx) {
+ IOReturn kresult;
+
+ /* Create the master port for talking to IOKit */
+ if (!libusb_darwin_mp) {
+ kresult = IOMasterPort (MACH_PORT_NULL, &libusb_darwin_mp);
+
+ if (kresult != kIOReturnSuccess || !libusb_darwin_mp)
+ return darwin_to_libusb (kresult);
+ }
+
+ pthread_create (&libusb_darwin_at, NULL, event_thread_main, (void *)ctx);
+
+ while (!libusb_darwin_acfl)
+ usleep (10);
+
+ return 0;
+}
+
+static void darwin_exit (void) {
+ void *ret;
+
+ /* stop the async runloop */
+ CFRunLoopStop (libusb_darwin_acfl);
+ pthread_join (libusb_darwin_at, &ret);
+
+ if (libusb_darwin_mp)
+ mach_port_deallocate(mach_task_self(), libusb_darwin_mp);
+
+ libusb_darwin_mp = 0;
+}
+
+static int darwin_get_device_descriptor(struct libusb_device *dev, unsigned char *buffer, int *host_endian) {
+ struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
+
+ /* return cached copy */
+ memmove (buffer, &(priv->dev_descriptor), DEVICE_DESC_LENGTH);
+
+ *host_endian = 0;
+
+ return 0;
+}
+
+static int darwin_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len, int *host_endian) {
+ struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
+ UInt8 configNum;
+ IOReturn kresult;
+
+ kresult = (*(priv->device))->GetConfiguration (priv->device, &configNum);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ return darwin_get_config_descriptor (dev, configNum, buffer, len, host_endian);
+}
+
+static int darwin_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian) {
+ struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
+ IOUSBConfigurationDescriptorPtr desc;
+ IOReturn kresult;
+
+ kresult = (*(priv->device))->GetConfigurationDescriptorPtr (priv->device, config_index, &desc);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ /* sanity check. is the buffer larger than the returned descriptor */
+ if (len > sizeof (*desc))
+ len = sizeof (*desc);
+
+ memmove (buffer, desc, len);
+
+ /* GetConfigurationDescriptorPtr returns the descriptor is USB bus order */
+ *host_endian = 0;
+
+ return 0;
+}
+
+static int process_new_device (struct libusb_context *ctx, usb_device_t **device, UInt32 locationID, struct discovered_devs **_discdevs) {
+ struct darwin_device_priv *priv;
+ struct libusb_device *dev;
+ struct discovered_devs *discdevs;
+ UInt16 address, idVendor, idProduct;
+ UInt8 bDeviceClass, bDeviceSubClass;
+ IOUSBDevRequest req;
+ int ret;
+
+ dev = usbi_get_device_by_session_id(ctx, locationID);
+ if (!dev) {
+ _usbi_log (ctx, LOG_LEVEL_INFO, "allocating new device for location 0x%08x", locationID);
+ dev = usbi_alloc_device(ctx, locationID);
+ if (!dev)
+ return LIBUSB_ERROR_NO_MEM;
+
+ priv = (struct darwin_device_priv *)dev->os_priv;
+
+ /* Set up request for device descriptor */
+ req.bmRequestType = USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice);
+ req.bRequest = kUSBRqGetDescriptor;
+ req.wValue = kUSBDeviceDesc << 8;
+ req.wIndex = 0;
+ req.wLength = sizeof(IOUSBDeviceDescriptor);
+ req.pData = &(priv->dev_descriptor);
+
+ (*(device))->GetDeviceAddress (device, (USBDeviceAddress *)&address);
+ (*(device))->GetDeviceProduct (device, &idProduct);
+ (*(device))->GetDeviceVendor (device, &idVendor);
+ (*(device))->GetDeviceClass (device, &bDeviceClass);
+ (*(device))->GetDeviceSubClass (device, &bDeviceSubClass);
+
+ /**** retrieve device descriptors ****/
+ /* device must be open for DeviceRequest */
+ (*device)->USBDeviceOpen(device);
+
+ ret = (*(device))->DeviceRequest (device, &req);
+ if (ret != kIOReturnSuccess) {
+ int try_unsuspend = 1;
+ UInt32 info;
+
+ /* device may be suspended. unsuspend it and try again */
+#if DeviceVersion >= 320
+ /* IOUSBFamily 320+ provides a way to detect device suspension but earlier versions do not */
+ (void)(*device)->GetUSBDeviceInformation (device, &info);
+
+ try_unsuspend = info & (1 << kUSBInformationDeviceIsSuspendedBit);
+#endif
+
+ if (try_unsuspend) {
+ /* resume the device */
+ (void)(*device)->USBDeviceSuspend (device, 0);
+
+ ret = (*(device))->DeviceRequest (device, &req);
+
+ /* resuspend the device */
+ (void)(*device)->USBDeviceSuspend (device, 1);
+ }
+ }
+
+ (*device)->USBDeviceClose (device);
+
+ if (ret != kIOReturnSuccess) {
+ _usbi_log (ctx, LOG_LEVEL_WARNING, "could not retrieve device descriptor: %s. skipping device", darwin_error_str (ret));
+ libusb_unref_device(dev);
+ return -1;
+ }
+ /**** end: retrieve device descriptors ****/
+
+ /* catch buggy hubs (which appear to be virtual). Apple's own USB prober has problems with these devices. */
+ if (libusb_le16_to_cpu (priv->dev_descriptor.idProduct) != idProduct) {
+ /* not a valid device */
+ _usbi_log (ctx, LOG_LEVEL_WARNING, "idProduct from iokit (%04x) does not match idProduct in descriptor (%04x). skipping device",
+ idProduct, libusb_le16_to_cpu (priv->dev_descriptor.idProduct));
+ libusb_unref_device(dev);
+ return -1;
+ }
+
+ dev->bus_number = locationID >> 24;
+ dev->device_address = address;
+
+ /* save our location, we'll need this later */
+ priv->location = locationID;
+ snprintf(priv->sys_path, 20, "%03i-%04x-%04x-%02x-%02x", address, idVendor, idProduct, bDeviceClass, bDeviceSubClass);
+
+ ret = usbi_sanitize_device(dev);
+
+ if (ret < 0) {
+ libusb_unref_device(dev);
+ return -1;
+ }
+ } else {
+ priv = (struct darwin_device_priv *)dev->os_priv;
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "using existing device for location 0x%08x", locationID);
+ }
+
+ /* append the device to the list of discovered devices */
+ discdevs = discovered_devs_append(*_discdevs, dev);
+ if (!discdevs)
+ return LIBUSB_ERROR_NO_MEM;
+
+ *_discdevs = discdevs;
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "found device with address %d at %s", dev->device_address, priv->sys_path);
+
+ return 0;
+}
+
+static int darwin_get_device_list(struct libusb_context *ctx, struct discovered_devs **_discdevs) {
+ io_iterator_t deviceIterator;
+ usb_device_t **device;
+ kern_return_t kresult;
+ UInt32 location;
+
+ if (!libusb_darwin_mp)
+ return LIBUSB_ERROR_INVALID_PARAM;
+
+ kresult = usb_setup_device_iterator (&deviceIterator);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ while ((device = usb_get_next_device (deviceIterator, &location)) != NULL) {
+ (void) process_new_device (ctx, device, location, _discdevs);
+
+ (*(device))->Release(device);
+ }
+
+ IOObjectRelease(deviceIterator);
+
+ return 0;
+}
+
+static int darwin_open (struct libusb_device_handle *dev_handle) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ usb_device_t **darwin_device;
+ IOReturn kresult;
+
+ kresult = darwin_get_device (dpriv->location, &darwin_device);
+ if (kresult) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "could not find device: %s", darwin_error_str (kresult));
+ return darwin_to_libusb (kresult);
+ }
+
+ dpriv->device = darwin_device;
+
+ /* try to open the device */
+ kresult = (*(dpriv->device))->USBDeviceOpenSeize (dpriv->device);
+
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "USBDeviceOpen: %s", darwin_error_str(kresult));
+
+ switch (kresult) {
+ case kIOReturnExclusiveAccess:
+ /* it is possible to perform some actions on a device that is not open so do not return an error */
+ priv->is_open = 0;
+
+ break;
+ default:
+ (*(dpriv->device))->Release (dpriv->device);
+ dpriv->device = NULL;
+ return darwin_to_libusb (kresult);
+ }
+ } else {
+ priv->is_open = 1;
+
+ /* create async event source */
+ kresult = (*(dpriv->device))->CreateDeviceAsyncEventSource (dpriv->device, &priv->cfSource);
+
+ CFRetain (libusb_darwin_acfl);
+
+ /* add the cfSource to the aync run loop */
+ CFRunLoopAddSource(libusb_darwin_acfl, priv->cfSource, kCFRunLoopCommonModes);
+ }
+
+ /* create a file descriptor for notifications */
+ pipe (priv->fds);
+
+ /* set the pipe to be non-blocking */
+ fcntl (priv->fds[1], F_SETFD, O_NONBLOCK);
+
+ usbi_add_pollfd(HANDLE_CTX(dev_handle), priv->fds[0], POLLIN);
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "device open for access");
+
+ return 0;
+}
+
+static void darwin_close (struct libusb_device_handle *dev_handle) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ IOReturn kresult;
+ int i;
+
+ /* make sure all interfaces are released */
+ for (i = 0 ; i < USB_MAXINTERFACES ; i++)
+ if (dev_handle->claimed_interfaces & (1 << i))
+ libusb_release_interface (dev_handle, i);
+
+ if (priv->is_open) {
+ /* delete the device's async event source */
+ if (priv->cfSource) {
+ CFRunLoopRemoveSource (libusb_darwin_acfl, priv->cfSource, kCFRunLoopDefaultMode);
+ CFRelease (priv->cfSource);
+ }
+
+ /* close the device */
+ kresult = (*(dpriv->device))->USBDeviceClose(dpriv->device);
+ if (kresult) {
+ /* Log the fact that we had a problem closing the file, however failing a
+ * close isn't really an error, so return success anyway */
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "USBDeviceClose: %s", darwin_error_str(kresult));
+ }
+ }
+
+ kresult = (*(dpriv->device))->Release(dpriv->device);
+ if (kresult) {
+ /* Log the fact that we had a problem closing the file, however failing a
+ * close isn't really an error, so return success anyway */
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "Release: %s", darwin_error_str(kresult));
+ }
+
+ usbi_remove_pollfd (HANDLE_CTX (dev_handle), priv->fds[0]);
+ close (priv->fds[1]);
+ close (priv->fds[0]);
+}
+
+static int darwin_get_configuration(struct libusb_device_handle *dev_handle, int *config) {
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ UInt8 configNum;
+ IOReturn kresult;
+
+ kresult = (*(dpriv->device))->GetConfiguration (dpriv->device, &configNum);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ *config = (int) configNum;
+
+ return 0;
+}
+
+static int darwin_set_configuration(struct libusb_device_handle *dev_handle, int config) {
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ IOReturn kresult;
+ int i;
+
+ /* Setting configuration will invalidate the interface, so we need
+ to reclaim it. First, dispose of existing interfaces, if any. */
+ for (i = 0 ; i < USB_MAXINTERFACES ; i++)
+ if (dev_handle->claimed_interfaces & (1 << i))
+ darwin_release_interface (dev_handle, i);
+
+ kresult = (*(dpriv->device))->SetConfiguration (dpriv->device, config);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ /* Reclaim any interfaces. */
+ for (i = 0 ; i < USB_MAXINTERFACES ; i++)
+ if (dev_handle->claimed_interfaces & (1 << i))
+ darwin_claim_interface (dev_handle, i);
+
+ return 0;
+}
+
+static int darwin_get_interface (usb_device_t **darwin_device, uint8_t ifc, io_service_t *usbInterfacep) {
+ IOUSBFindInterfaceRequest request;
+ uint8_t current_interface;
+ kern_return_t kresult;
+ io_iterator_t interface_iterator;
+
+ *usbInterfacep = IO_OBJECT_NULL;
+
+ /* Setup the Interface Request */
+ request.bInterfaceClass = kIOUSBFindInterfaceDontCare;
+ request.bInterfaceSubClass = kIOUSBFindInterfaceDontCare;
+ request.bInterfaceProtocol = kIOUSBFindInterfaceDontCare;
+ request.bAlternateSetting = kIOUSBFindInterfaceDontCare;
+
+ kresult = (*(darwin_device))->CreateInterfaceIterator(darwin_device, &request, &interface_iterator);
+ if (kresult)
+ return kresult;
+
+ for ( current_interface = 0 ; current_interface <= ifc ; current_interface++ )
+ *usbInterfacep = IOIteratorNext(interface_iterator);
+
+ /* done with the interface iterator */
+ IOObjectRelease(interface_iterator);
+
+ return 0;
+}
+
+static int get_endpoints (struct libusb_device_handle *dev_handle, int iface) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+
+ /* current interface */
+ struct __darwin_interface *cInterface = &priv->interfaces[iface];
+
+ kern_return_t kresult;
+
+ u_int8_t numep, direction, number;
+ u_int8_t dont_care1, dont_care3;
+ u_int16_t dont_care2;
+ int i;
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "building table of endpoints.");
+
+ /* retrieve the total number of endpoints on this interface */
+ kresult = (*(cInterface->interface))->GetNumEndpoints(cInterface->interface, &numep);
+ if (kresult) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "can't get number of endpoints for interface: %s", darwin_error_str(kresult));
+ return darwin_to_libusb (kresult);
+ }
+
+ /* iterate through pipe references */
+ for (i = 1 ; i <= numep ; i++) {
+ kresult = (*(cInterface->interface))->GetPipeProperties(cInterface->interface, i, &direction, &number, &dont_care1,
+ &dont_care2, &dont_care3);
+
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "error getting pipe information for pipe %d: %s", i, darwin_error_str(kresult));
+
+ return darwin_to_libusb (kresult);
+ }
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "interface: %i pipe %i: dir: %i number: %i", iface, i, direction, number);
+
+ cInterface->endpoint_addrs[i - 1] = ((direction << 7 & LIBUSB_ENDPOINT_DIR_MASK) | (number & LIBUSB_ENDPOINT_ADDRESS_MASK));
+ }
+
+ cInterface->num_endpoints = numep;
+
+ return 0;
+}
+
+static int darwin_claim_interface(struct libusb_device_handle *dev_handle, int iface) {
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+ io_service_t usbInterface = IO_OBJECT_NULL;
+ IOReturn kresult;
+ IOCFPlugInInterface **plugInInterface = NULL;
+ long score;
+ uint8_t new_config;
+
+ /* current interface */
+ struct __darwin_interface *cInterface = &priv->interfaces[iface];
+
+ kresult = darwin_get_interface (dpriv->device, iface, &usbInterface);
+ if (kresult != kIOReturnSuccess)
+ return darwin_to_libusb (kresult);
+
+ /* make sure we have an interface */
+ if (!usbInterface) {
+ u_int8_t nConfig; /* Index of configuration to use */
+ IOUSBConfigurationDescriptorPtr configDesc; /* to describe which configuration to select */
+ /* Only a composite class device with no vendor-specific driver will
+ be configured. Otherwise, we need to do it ourselves, or there
+ will be no interfaces for the device. */
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "no interface found; selecting configuration" );
+
+ kresult = (*(dpriv->device))->GetNumberOfConfigurations (dpriv->device, &nConfig);
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "GetNumberOfConfigurations: %s", darwin_error_str(kresult));
+ return darwin_to_libusb(kresult);
+ }
+
+ if (nConfig < 1) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "GetNumberOfConfigurations: no configurations");
+ return LIBUSB_ERROR_OTHER;
+ }
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "device has %d configuration%s. using the first",
+ (int)nConfig, (nConfig > 1 ? "s" : "") );
+
+ /* Always use the first configuration */
+ kresult = (*(dpriv->device))->GetConfigurationDescriptorPtr (dpriv->device, 0, &configDesc);
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "GetConfigurationDescriptorPtr: %s",
+ darwin_error_str(kresult));
+
+ new_config = 1;
+ } else
+ new_config = configDesc->bConfigurationValue;
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "new configuration value is %d", new_config);
+
+ /* set the configuration */
+ kresult = darwin_set_configuration (dev_handle, new_config);
+ if (kresult != LIBUSB_SUCCESS) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "could not set configuration");
+ return kresult;
+ }
+
+ kresult = darwin_get_interface (dpriv->device, iface, &usbInterface);
+ if (kresult) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "darwin_get_interface: %s", darwin_error_str(kresult));
+ return darwin_to_libusb (kresult);
+ }
+ }
+
+ if (!usbInterface) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "interface not found");
+ return LIBUSB_ERROR_NOT_FOUND;
+ }
+
+ /* get an interface to the device's interface */
+ kresult = IOCreatePlugInInterfaceForService (usbInterface, kIOUSBInterfaceUserClientTypeID,
+ kIOCFPlugInInterfaceID, &plugInInterface, &score);
+ kresult = IOObjectRelease(usbInterface);
+ if (kresult || !plugInInterface)
+ return darwin_to_libusb (kresult);
+
+ /* Do the actual claim */
+ kresult = (*plugInInterface)->QueryInterface(plugInInterface,
+ CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID),
+ (LPVOID)&cInterface->interface);
+ if (kresult || !cInterface->interface) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "QueryInterface: %s", darwin_error_str(kresult));
+ return darwin_to_libusb (kresult);
+ }
+
+ /* We no longer need the intermediate plug-in */
+ (*plugInInterface)->Release(plugInInterface);
+
+ /* claim the interface */
+ kresult = (*(cInterface->interface))->USBInterfaceOpen(cInterface->interface);
+ if (kresult) {
+ _usbi_log(HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "USBInterfaceOpen: %s", darwin_error_str(kresult));
+ return darwin_to_libusb (kresult);
+ }
+
+ /* update list of endpoints */
+ kresult = get_endpoints (dev_handle, iface);
+ if (kresult) {
+ /* this should not happen */
+ darwin_release_interface (dev_handle, iface);
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "could not build endpoint table");
+ return kresult;
+ }
+
+ /* create async event source */
+ kresult = (*(cInterface->interface))->CreateInterfaceAsyncEventSource (cInterface->interface, &cInterface->cfSource);
+
+ /* add the cfSource to the aync run loop */
+ CFRetain (libusb_darwin_acfl);
+ CFRunLoopAddSource(libusb_darwin_acfl, cInterface->cfSource, kCFRunLoopDefaultMode);
+
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_INFO, "interface opened");
+
+ return 0;
+}
+
+static int darwin_release_interface(struct libusb_device_handle *dev_handle, int iface) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+ IOReturn kresult;
+
+ /* current interface */
+ struct __darwin_interface *cInterface = &priv->interfaces[iface];
+
+ /* Check to see if an interface is open */
+ if (!cInterface->interface)
+ return LIBUSB_SUCCESS;
+
+ /* clean up endpoint data */
+ cInterface->num_endpoints = 0;
+
+ /* delete the interface's async event source */
+ CFRunLoopRemoveSource (libusb_darwin_acfl, cInterface->cfSource, kCFRunLoopDefaultMode);
+ CFRelease (cInterface->cfSource);
+
+ kresult = (*(cInterface->interface))->USBInterfaceClose(cInterface->interface);
+ if (kresult)
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "USBInterfaceClose: %s", darwin_error_str(kresult));
+
+ kresult = (*(cInterface->interface))->Release(cInterface->interface);
+ if (kresult != kIOReturnSuccess)
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "Release: %s", darwin_error_str(kresult));
+
+ cInterface->interface = IO_OBJECT_NULL;
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_set_interface_altsetting(struct libusb_device_handle *dev_handle, int iface, int altsetting) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+ IOReturn kresult;
+
+ /* current interface */
+ struct __darwin_interface *cInterface = &priv->interfaces[iface];
+
+ if (!cInterface->interface)
+ return LIBUSB_ERROR_NO_DEVICE;
+
+ kresult = (*(cInterface->interface))->SetAlternateInterface (cInterface->interface, altsetting);
+ if (kresult != kIOReturnSuccess)
+ darwin_reset_device (dev_handle);
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint) {
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
+
+ /* current interface */
+ struct __darwin_interface *cInterface;
+ uint8_t pipeRef, iface;
+ IOReturn kresult;
+
+ /* determine the interface/endpoint to use */
+ if (ep_to_pipeRef (dev_handle, endpoint, &pipeRef, &iface) != 0) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "endpoint not found on any open interface");
+
+ return LIBUSB_ERROR_NOT_FOUND;
+ }
+
+ cInterface = &priv->interfaces[iface];
+
+#if (InterfaceVersion < 190)
+ kresult = (*(cInterface->interface))->ClearPipeStall(cInterface->interface, pipeRef);
+#else
+ /* newer versions of darwin support clearing additional bits on the device's endpoint */
+ kresult = (*(cInterface->interface))->ClearPipeStallBothEnds(cInterface->interface, pipeRef);
+#endif
+ if (kresult)
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "ClearPipeStall: %s", darwin_error_str (kresult));
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_reset_device(struct libusb_device_handle *dev_handle) {
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ IOReturn kresult;
+
+ kresult = (*(dpriv->device))->ResetDevice (dpriv->device);
+ if (kresult)
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "ResetDevice: %s", darwin_error_str (kresult));
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_kernel_driver_active(struct libusb_device_handle *dev_handle, int interface) {
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)dev_handle->dev->os_priv;
+ io_service_t usbInterface;
+ CFTypeRef driver;
+ IOReturn kresult;
+
+ kresult = darwin_get_interface (dpriv->device, interface, &usbInterface);
+ if (kresult) {
+ _usbi_log (HANDLE_CTX (dev_handle), LOG_LEVEL_ERROR, "darwin_get_interface: %s", darwin_error_str(kresult));
+
+ return darwin_to_libusb (kresult);
+ }
+
+ driver = IORegistryEntryCreateCFProperty (usbInterface, kIOBundleIdentifierKey, kCFAllocatorDefault, 0);
+ IOObjectRelease (usbInterface);
+
+ if (driver) {
+ CFRelease (driver);
+
+ return 1;
+ }
+
+ /* no driver */
+ return 0;
+}
+
+/* attaching/detaching kernel drivers is not currently supported (maybe in the future?) */
+static int darwin_attach_kernel_driver (struct libusb_device_handle *dev_handle, int interface) {
+ return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int darwin_detach_kernel_driver (struct libusb_device_handle *dev_handle, int interface) {
+ return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static void darwin_destroy_device(struct libusb_device *dev) {
+}
+
+static int submit_bulk_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)transfer->dev_handle->os_priv;
+
+ IOReturn ret;
+ uint8_t is_read; /* 0 = we're reading, 1 = we're writing */
+ uint8_t transferType;
+ /* None of the values below are used in libusb for bulk transfers */
+ uint8_t direction, number, interval, pipeRef, iface;
+ uint16_t maxPacketSize;
+
+ struct __darwin_interface *cInterface;
+
+ /* are we reading or writing? */
+ is_read = transfer->endpoint & LIBUSB_ENDPOINT_IN;
+
+ if (ep_to_pipeRef (transfer->dev_handle, transfer->endpoint, &pipeRef, &iface) != 0) {
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "endpoint not found on any open interface");
+
+ return LIBUSB_ERROR_NOT_FOUND;
+ }
+
+ cInterface = &priv->interfaces[iface];
+
+ (*(cInterface->interface))->GetPipeProperties (cInterface->interface, pipeRef, &direction, &number,
+ &transferType, &maxPacketSize, &interval);
+
+ /* submit the request */
+ /* timeouts are unavailable on interrupt endpoints */
+ if (transferType == kUSBInterrupt) {
+ if (is_read)
+ ret = (*(cInterface->interface))->ReadPipeAsync(cInterface->interface, pipeRef, transfer->buffer,
+ transfer->length, darwin_async_io_callback, itransfer);
+ else
+ ret = (*(cInterface->interface))->WritePipeAsync(cInterface->interface, pipeRef, transfer->buffer,
+ transfer->length, darwin_async_io_callback, itransfer);
+ } else {
+ if (is_read)
+ ret = (*(cInterface->interface))->ReadPipeAsyncTO(cInterface->interface, pipeRef, transfer->buffer,
+ transfer->length, transfer->timeout, transfer->timeout,
+ darwin_async_io_callback, (void *)itransfer);
+ else
+ ret = (*(cInterface->interface))->WritePipeAsyncTO(cInterface->interface, pipeRef, transfer->buffer,
+ transfer->length, transfer->timeout, transfer->timeout,
+ darwin_async_io_callback, (void *)itransfer);
+ }
+
+ if (ret)
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "bulk transfer failed (dir = %s): %s", is_read ? "In" : "Out",
+ darwin_error_str(ret));
+
+ return darwin_to_libusb (ret);
+}
+
+static int submit_iso_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_transfer_priv *tpriv = usbi_transfer_get_os_priv(itransfer);
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)transfer->dev_handle->os_priv;
+
+ IOReturn kresult;
+ uint8_t is_read; /* 0 = we're writing, 1 = we're reading */
+ uint8_t pipeRef, iface;
+ UInt64 frame;
+ AbsoluteTime atTime;
+ int i;
+
+ struct __darwin_interface *cInterface;
+
+ /* are we reading or writing? */
+ is_read = transfer->endpoint & LIBUSB_ENDPOINT_IN;
+
+ /* construct an array of IOUSBIsocFrames */
+ tpriv->isoc_framelist = (IOUSBIsocFrame*) calloc (transfer->num_iso_packets, sizeof(IOUSBIsocFrame));
+ if (!tpriv->isoc_framelist)
+ return LIBUSB_ERROR_NO_MEM;
+
+ /* copy the frame list from the libusb descriptor (the structures differ only is member order) */
+ for (i = 0 ; i < transfer->num_iso_packets ; i++)
+ tpriv->isoc_framelist[i].frReqCount = transfer->iso_packet_desc[i].length;
+
+ /* determine the interface/endpoint to use */
+ if (ep_to_pipeRef (transfer->dev_handle, transfer->endpoint, &pipeRef, &iface) != 0) {
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "endpoint not found on any open interface");
+
+ return LIBUSB_ERROR_NOT_FOUND;
+ }
+
+ cInterface = &priv->interfaces[iface];
+
+ /* Last but not least we need the bus frame number */
+ kresult = (*(cInterface->interface))->GetBusFrameNumber(cInterface->interface, &frame, &atTime);
+ if (kresult) {
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "failed to get bus frame number: %d", kresult);
+ free(tpriv->isoc_framelist);
+ tpriv->isoc_framelist = NULL;
+
+ return darwin_to_libusb (kresult);
+ }
+
+ /* schedule for a frame a little in the future */
+ frame += 2;
+
+ /* submit the request */
+ if (is_read)
+ kresult = (*(cInterface->interface))->ReadIsochPipeAsync(cInterface->interface, pipeRef, transfer->buffer, frame,
+ transfer->num_iso_packets, tpriv->isoc_framelist, darwin_async_io_callback,
+ itransfer);
+ else
+ kresult = (*(cInterface->interface))->WriteIsochPipeAsync(cInterface->interface, pipeRef, transfer->buffer, frame,
+ transfer->num_iso_packets, tpriv->isoc_framelist, darwin_async_io_callback,
+ itransfer);
+
+ if (kresult != kIOReturnSuccess) {
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "isochronous transfer failed (dir: %s): %s", is_read ? "In" : "Out",
+ darwin_error_str(kresult));
+ free (tpriv->isoc_framelist);
+ tpriv->isoc_framelist = NULL;
+ }
+
+ return darwin_to_libusb (kresult);
+}
+
+static int submit_control_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct libusb_control_setup *setup = (struct libusb_control_setup *) transfer->buffer;
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)transfer->dev_handle->dev->os_priv;
+ struct darwin_transfer_priv *tpriv = usbi_transfer_get_os_priv(itransfer);
+
+ IOReturn kresult;
+
+ bzero(&tpriv->req, sizeof(tpriv->req));
+
+ /* IOUSBDeviceInterface expects the request in cpu endianess */
+ tpriv->req.bmRequestType = setup->bmRequestType;
+ tpriv->req.bRequest = setup->bRequest;
+ /* these values should already be in bus order */
+ tpriv->req.wValue = setup->wValue;
+ tpriv->req.wIndex = setup->wIndex;
+ tpriv->req.wLength = setup->wLength;
+ /* data is stored after the libusb control block */
+ tpriv->req.pData = transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE;
+ tpriv->req.completionTimeout = transfer->timeout;
+ tpriv->req.noDataTimeout = transfer->timeout;
+
+ /* all transfers in libusb-1.0 are async */
+ kresult = (*(dpriv->device))->DeviceRequestAsyncTO(dpriv->device, &(tpriv->req), darwin_async_io_callback, itransfer);
+
+ if (kresult != kIOReturnSuccess)
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "control request failed: %s", darwin_error_str(kresult));
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_submit_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+
+ switch (transfer->type) {
+ case LIBUSB_TRANSFER_TYPE_CONTROL:
+ return submit_control_transfer(itransfer);
+ case LIBUSB_TRANSFER_TYPE_BULK:
+ case LIBUSB_TRANSFER_TYPE_INTERRUPT:
+ return submit_bulk_transfer(itransfer);
+ case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
+ return submit_iso_transfer(itransfer);
+ default:
+ _usbi_log (TRANSFER_CTX(transfer), LOG_LEVEL_ERROR, "unknown endpoint type %d", transfer->type);
+ return LIBUSB_ERROR_INVALID_PARAM;
+ }
+}
+
+static int cancel_control_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_device_priv *dpriv = (struct darwin_device_priv *)transfer->dev_handle->dev->os_priv;
+ IOReturn kresult;
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "WARNING: aborting all transactions control pipe");
+
+ kresult = (*(dpriv->device))->USBDeviceAbortPipeZero (dpriv->device);
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_abort_transfers (struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)transfer->dev_handle->os_priv;
+ struct __darwin_interface *cInterface;
+ uint8_t pipeRef, iface;
+ IOReturn kresult;
+
+ if (ep_to_pipeRef (transfer->dev_handle, transfer->endpoint, &pipeRef, &iface) != 0) {
+ _usbi_log (TRANSFER_CTX (transfer), LOG_LEVEL_ERROR, "endpoint not found on any open interface");
+
+ return LIBUSB_ERROR_NOT_FOUND;
+ }
+
+ cInterface = &priv->interfaces[iface];
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "WARNING: aborting all transactions on interface %d pipe %d", iface, pipeRef);
+
+ /* abort transactions */
+ (*(cInterface->interface))->AbortPipe (cInterface->interface, pipeRef);
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "calling clear pipe stall to clear the data toggle bit");
+
+ /* clear the data toggle bit */
+#if (InterfaceVersion < 190)
+ kresult = (*(cInterface->interface))->ClearPipeStall(cInterface->interface, pipeRef);
+#else
+ /* newer versions of darwin support clearing additional bits on the device's endpoint */
+ kresult = (*(cInterface->interface))->ClearPipeStallBothEnds(cInterface->interface, pipeRef);
+#endif
+
+ return darwin_to_libusb (kresult);
+}
+
+static int darwin_cancel_transfer(struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+
+ switch (transfer->type) {
+ case LIBUSB_TRANSFER_TYPE_CONTROL:
+ return cancel_control_transfer(itransfer);
+ case LIBUSB_TRANSFER_TYPE_BULK:
+ case LIBUSB_TRANSFER_TYPE_INTERRUPT:
+ case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
+ return darwin_abort_transfers (itransfer);
+ default:
+ _usbi_log (TRANSFER_CTX(transfer), LOG_LEVEL_ERROR, "unknown endpoint type %d", transfer->type);
+ return LIBUSB_ERROR_INVALID_PARAM;
+ }
+}
+
+static void darwin_clear_transfer_priv (struct usbi_transfer *itransfer) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_transfer_priv *tpriv = usbi_transfer_get_os_priv(itransfer);
+
+ if (transfer->type == LIBUSB_TRANSFER_TYPE_ISOCHRONOUS && tpriv->isoc_framelist) {
+ free (tpriv->isoc_framelist);
+ tpriv->isoc_framelist = NULL;
+ }
+}
+
+static void darwin_async_io_callback (void *refcon, IOReturn result, void *arg0) {
+ struct usbi_transfer *itransfer = (struct usbi_transfer *)refcon;
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)transfer->dev_handle->os_priv;
+ UInt32 message;
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "an async io operation has completed");
+
+ /* send a completion message to the device's file descriptor */
+ message = MESSAGE_ASYNC_IO_COMPLETE;
+ write (priv->fds[1], &message, sizeof (message));
+ write (priv->fds[1], &itransfer, sizeof (itransfer));
+ write (priv->fds[1], &result, sizeof (IOReturn));
+ write (priv->fds[1], &arg0, sizeof (UInt32));
+}
+
+static void darwin_bulk_callback (struct usbi_transfer *itransfer, kern_return_t result, UInt32 io_size) {
+ enum libusb_transfer_status status;
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "handling bulk completion with status %d", result);
+
+ switch (result) {
+ case kIOReturnSuccess:
+ status = LIBUSB_TRANSFER_COMPLETED;
+ itransfer->transferred += io_size;
+ break;
+ case kIOReturnAborted:
+ usbi_handle_transfer_cancellation(itransfer);
+ return;
+ case kIOUSBPipeStalled:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_WARNING, "unsupported control request");
+ status = LIBUSB_TRANSFER_STALL;
+
+ break;
+ default:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_ERROR, "control error = %s", darwin_error_str (result));
+ status = LIBUSB_TRANSFER_ERROR;
+ }
+
+ usbi_handle_transfer_completion(itransfer, status);
+}
+
+static void darwin_isoc_callback (struct usbi_transfer *itransfer, kern_return_t result) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+ struct darwin_transfer_priv *tpriv = usbi_transfer_get_os_priv(itransfer);
+ int i, status;
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "handling isoc completion with status %d", result);
+
+ if (result == kIOReturnSuccess && tpriv->isoc_framelist) {
+ /* copy isochronous results back */
+
+ for (i = 0; i < transfer->num_iso_packets ; i++) {
+ struct libusb_iso_packet_descriptor *lib_desc = transfer->iso_packet_desc;
+ lib_desc->status = darwin_to_libusb (tpriv->isoc_framelist[i].frStatus);
+ lib_desc->actual_length = tpriv->isoc_framelist[i].frActCount;
+ }
+ }
+
+ switch (result) {
+ case kIOReturnSuccess:
+ status = LIBUSB_TRANSFER_COMPLETED;
+ break;
+ case kIOReturnAborted:
+ usbi_handle_transfer_cancellation(itransfer);
+ return;
+ case kIOUSBPipeStalled:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_WARNING, "unsupported control request");
+ status = LIBUSB_TRANSFER_STALL;
+
+ break;
+ default:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_ERROR, "control error = %s", darwin_error_str (result));
+ status = LIBUSB_TRANSFER_ERROR;
+ }
+
+ usbi_handle_transfer_completion(itransfer, status);
+}
+
+static void darwin_control_callback (struct usbi_transfer *itransfer, kern_return_t result, UInt32 io_size) {
+ int status;
+
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_INFO, "handling control completion with status %d", result);
+
+ switch (result) {
+ case kIOReturnSuccess:
+ status = LIBUSB_TRANSFER_COMPLETED;
+ itransfer->transferred += io_size;
+ break;
+ case kIOReturnAborted:
+ usbi_handle_transfer_cancellation(itransfer);
+ return;
+ case kIOUSBPipeStalled:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_WARNING, "unsupported control request");
+ status = LIBUSB_TRANSFER_STALL;
+
+ break;
+ default:
+ _usbi_log (ITRANSFER_CTX (itransfer), LOG_LEVEL_ERROR, "control error = %s", darwin_error_str (result));
+ status = LIBUSB_TRANSFER_ERROR;
+ }
+
+ usbi_handle_transfer_completion(itransfer, status);
+}
+
+static void darwin_handle_callback (struct usbi_transfer *itransfer, kern_return_t result, UInt32 io_size) {
+ struct libusb_transfer *transfer = __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+
+ switch (transfer->type) {
+ case LIBUSB_TRANSFER_TYPE_CONTROL:
+ darwin_control_callback (itransfer, result, io_size);
+ break;
+ case LIBUSB_TRANSFER_TYPE_BULK:
+ case LIBUSB_TRANSFER_TYPE_INTERRUPT:
+ darwin_bulk_callback (itransfer, result, io_size);
+ break;
+ case LIBUSB_TRANSFER_TYPE_ISOCHRONOUS:
+ darwin_isoc_callback (itransfer, result);
+ break;
+ default:
+ _usbi_log (TRANSFER_CTX(transfer), LOG_LEVEL_ERROR, "unknown endpoint type %d", transfer->type);
+ }
+}
+
+static int op_handle_events(struct libusb_context *ctx, struct pollfd *fds, nfds_t nfds, int num_ready) {
+ struct usbi_transfer *itransfer;
+ UInt32 io_size;
+ IOReturn kresult;
+ int i = 0, ret;
+ UInt32 message;
+
+ pthread_mutex_lock(&ctx->open_devs_lock);
+ for (i = 0; i < nfds && num_ready > 0; i++) {
+ struct pollfd *pollfd = &fds[i];
+ struct libusb_device_handle *handle;
+ struct darwin_device_handle_priv *hpriv = NULL;
+
+ _usbi_log (ctx, LOG_LEVEL_INFO, "checking fd %i with revents = %x", fds[i], pollfd->revents);
+
+ if (!pollfd->revents)
+ continue;
+
+ num_ready--;
+ list_for_each_entry(handle, &ctx->open_devs, list) {
+ hpriv = (struct darwin_device_handle_priv *)handle->os_priv;
+ if (hpriv->fds[0] == pollfd->fd)
+ break;
+ }
+
+ if (pollfd->revents & POLLERR) {
+ usbi_remove_pollfd(HANDLE_CTX(handle), hpriv->fds[0]);
+ usbi_handle_disconnect(handle);
+
+ /* done with this device */
+ continue;
+ }
+
+ ret = read (hpriv->fds[0], &message, sizeof (message));
+ if (ret < sizeof (message))
+ continue;
+
+ switch (message) {
+ case MESSAGE_DEVICE_GONE:
+ usbi_remove_pollfd(HANDLE_CTX(handle), hpriv->fds[0]);
+ usbi_handle_disconnect(handle);
+
+ /* done with this device */
+ continue;
+ case MESSAGE_ASYNC_IO_COMPLETE:
+ read (hpriv->fds[0], &itransfer, sizeof (itransfer));
+ read (hpriv->fds[0], &kresult, sizeof (IOReturn));
+ read (hpriv->fds[0], &io_size, sizeof (UInt32));
+
+ darwin_handle_callback (itransfer, kresult, io_size);
+ break;
+ default:
+ _usbi_log (ctx, LOG_LEVEL_ERROR, "unknown message received from device pipe");
+ }
+ }
+
+ pthread_mutex_unlock(&ctx->open_devs_lock);
+
+ return 0;
+}
+
+static int darwin_clock_gettime(int clk_id, struct timespec *tp) {
+ mach_timespec_t sys_time;
+ clock_serv_t clock_ref;
+
+ switch (clk_id) {
+ case LIBUSB_CLOCK_REALTIME:
+ /* CLOCK_REALTIME represents time since the epoch */
+ host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clock_ref);
+ break;
+ case LIBUSB_CLOCK_MONOTONIC:
+ /* use system boot time as reference for the monotonic clock */
+ host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clock_ref);
+ break;
+ default:
+ return LIBUSB_ERROR_INVALID_PARAM;
+ }
+
+ clock_get_time (clock_ref, &sys_time);
+
+ tp->tv_sec = sys_time.tv_sec;
+ tp->tv_nsec = sys_time.tv_nsec;
+
+ return 0;
+}
+
+const struct usbi_os_backend darwin_backend = {
+ .name = "Darwin",
+ .init = darwin_init,
+ .exit = darwin_exit,
+ .get_device_list = darwin_get_device_list,
+ .get_device_descriptor = darwin_get_device_descriptor,
+ .get_active_config_descriptor = darwin_get_active_config_descriptor,
+ .get_config_descriptor = darwin_get_config_descriptor,
+
+ .open = darwin_open,
+ .close = darwin_close,
+ .get_configuration = darwin_get_configuration,
+ .set_configuration = darwin_set_configuration,
+ .claim_interface = darwin_claim_interface,
+ .release_interface = darwin_release_interface,
+
+ .set_interface_altsetting = darwin_set_interface_altsetting,
+ .clear_halt = darwin_clear_halt,
+ .reset_device = darwin_reset_device,
+
+ .kernel_driver_active = darwin_kernel_driver_active,
+ .detach_kernel_driver = darwin_detach_kernel_driver,
+ .attach_kernel_driver = darwin_attach_kernel_driver,
+
+ .destroy_device = darwin_destroy_device,
+
+ .submit_transfer = darwin_submit_transfer,
+ .cancel_transfer = darwin_cancel_transfer,
+ .clear_transfer_priv = darwin_clear_transfer_priv,
+
+ .handle_events = op_handle_events,
+
+ .clock_gettime = darwin_clock_gettime,
+
+ .device_priv_size = sizeof(struct darwin_device_priv),
+ .device_handle_priv_size = sizeof(struct darwin_device_handle_priv),
+ .transfer_priv_size = sizeof(struct darwin_transfer_priv),
+ .add_iso_packet_size = 0,
+};
+
projects / platform / upstream / libusb.git / commitdiff