diff options
Diffstat (limited to 'libusb-1.0/libusb/os/darwin_usb.c')
| -rw-r--r-- | libusb-1.0/libusb/os/darwin_usb.c | 1545 |
1 files changed, 0 insertions, 1545 deletions
diff --git a/libusb-1.0/libusb/os/darwin_usb.c b/libusb-1.0/libusb/os/darwin_usb.c deleted file mode 100644 index 646c938..0000000 --- a/libusb-1.0/libusb/os/darwin_usb.c +++ /dev/null @@ -1,1545 +0,0 @@ -/* - * darwin backend for libusb 1.0 - * Copyright (C) 2008-2010 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 */ -static int initCount = 0; - -/* 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_async_io_callback (void *refcon, IOReturn result, void *arg0); - -static const 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"; - case kIOReturnOverrun: - return "data overrun"; - case kIOReturnCannotWire: - return "physical memory can not be wired down"; - default: - return "unknown error"; - } -} - -static int darwin_to_libusb (int result) { - switch (result) { - case kIOReturnUnderrun: - 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_info (HANDLE_CTX(dev_handle), "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_info (HANDLE_CTX(dev_handle), "pipe %d on interface %d matches", *pipep, *ifcp); - return 0; - } - } - } - } - - /* No pipe found with the correct endpoint address */ - usbi_warn (HANDLE_CTX(dev_handle), "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; - SInt32 score; - - if (!IOIteratorIsValid (deviceIterator)) - return NULL; - - - while ((usbDevice = IOIteratorNext(deviceIterator))) { - result = IOCreatePlugInInterfaceForService(usbDevice, kIOUSBDeviceUserClientTypeID, - kIOCFPlugInInterfaceID, &plugInInterface, - &score); - if (kIOReturnSuccess == result && plugInInterface) - break; - - usbi_dbg ("libusb/darwin.c usb_get_next_device: could not set up plugin for service: %s\n", darwin_error_str (result)); - } - - if (!usbDevice) - return NULL; - - (void)IOObjectRelease(usbDevice); - (void)(*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(DeviceInterfaceID), - (LPVOID)&device); - - (*plugInInterface)->Stop(plugInInterface); - IODestroyPlugInInterface (plugInInterface); - - /* get the location from the device */ - if (locationp) - (*(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_info (ctx, "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); - - usbi_mutex_lock(&ctx->open_devs_lock); - list_for_each_entry(handle, &ctx->open_devs, list, struct libusb_device_handle) { - dpriv = (struct darwin_device_priv *)handle->dev->os_priv; - - /* the device may have been opened several times. write to each handle's event descriptor */ - if (dpriv->location == location && handle->os_priv) { - priv = (struct darwin_device_handle_priv *)handle->os_priv; - - message = MESSAGE_DEVICE_GONE; - write (priv->fds[1], &message, sizeof (message)); - } - } - - usbi_mutex_unlock(&ctx->open_devs_lock); - } -} - -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_info (ctx, "creating hotplug event source"); - - CFRetain (CFRunLoopGetCurrent ()); - - /* 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_err (ctx, "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_info (ctx, "thread ready to receive events"); - - /* run the runloop */ - CFRunLoopRun(); - - usbi_info (ctx, "thread exiting"); - - /* delete notification port */ - CFRunLoopSourceInvalidate (libusb_notification_cfsource); - IONotificationPortDestroy (libusb_notification_port); - - CFRelease (CFRunLoopGetCurrent ()); - - libusb_darwin_acfl = NULL; - - pthread_exit (0); -} - -static int darwin_init(struct libusb_context *ctx) { - IOReturn kresult; - - if (!(initCount++)) { - /* 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) { - if (!(--initCount)) { - 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 get_configuration_index (struct libusb_device *dev, int config_value) { - struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv; - UInt8 i, numConfig; - IOUSBConfigurationDescriptorPtr desc; - IOReturn kresult; - - /* is there a simpler way to determine the index? */ - kresult = (*(priv->device))->GetNumberOfConfigurations (priv->device, &numConfig); - if (kresult != kIOReturnSuccess) - return darwin_to_libusb (kresult); - - for (i = 0 ; i < numConfig ; i++) { - (*(priv->device))->GetConfigurationDescriptorPtr (priv->device, i, &desc); - - if (desc->bConfigurationValue == config_value) - return i; - } - - /* configuration not found */ - return LIBUSB_ERROR_OTHER; -} - -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; - int config_index; - - if (0 == priv->active_config) - return LIBUSB_ERROR_INVALID_PARAM; - - config_index = get_configuration_index (dev, priv->active_config); - if (config_index < 0) - return config_index; - - return darwin_get_config_descriptor (dev, config_index, 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; - usb_device_t **device = NULL; - - if (!priv) - return LIBUSB_ERROR_OTHER; - - if (!priv->device) { - kresult = darwin_get_device (priv->location, &device); - if (kresult || !device) { - usbi_err (DEVICE_CTX (dev), "could not find device: %s", darwin_error_str (kresult)); - - return darwin_to_libusb (kresult); - } - - /* don't have to open the device to get a config descriptor */ - } else - device = priv->device; - - kresult = (*device)->GetConfigurationDescriptorPtr (device, config_index, &desc); - if (kresult == kIOReturnSuccess) { - /* copy descriptor */ - if (libusb_le16_to_cpu(desc->wTotalLength) < len) - len = libusb_le16_to_cpu(desc->wTotalLength); - - memmove (buffer, desc, len); - - /* GetConfigurationDescriptorPtr returns the descriptor in USB bus order */ - *host_endian = 0; - } - - if (!priv->device) - (*device)->Release (device); - - return darwin_to_libusb (kresult); -} - -/* check whether the os has configured the device */ -static int darwin_check_configuration (struct libusb_context *ctx, struct libusb_device *dev, usb_device_t **darwin_device) { - struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv; - - IOUSBConfigurationDescriptorPtr configDesc; - IOUSBFindInterfaceRequest request; - kern_return_t kresult; - io_iterator_t interface_iterator; - io_service_t firstInterface; - - if (priv->dev_descriptor.bNumConfigurations < 1) { - usbi_err (ctx, "device has no configurations"); - return LIBUSB_ERROR_OTHER; /* no configurations at this speed so we can't use it */ - } - - /* find the first configuration */ - kresult = (*darwin_device)->GetConfigurationDescriptorPtr (darwin_device, 0, &configDesc); - priv->first_config = (kIOReturnSuccess == kresult) ? configDesc->bConfigurationValue : 1; - - /* check if the device is already configured. there is probably a better way than iterating over the - to accomplish this (the trick is we need to avoid a call to GetConfigurations since buggy devices - might lock up on the device request) */ - - /* 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 darwin_to_libusb (kresult); - - /* iterate once */ - firstInterface = IOIteratorNext(interface_iterator); - - /* done with the interface iterator */ - IOObjectRelease(interface_iterator); - - if (firstInterface) { - IOObjectRelease (firstInterface); - - /* device is configured */ - if (priv->dev_descriptor.bNumConfigurations == 1) - /* to avoid problems with some devices get the configurations value from the configuration descriptor */ - priv->active_config = priv->first_config; - else - /* devices with more than one configuration should work with GetConfiguration */ - (*darwin_device)->GetConfiguration (darwin_device, &priv->active_config); - } else - /* not configured */ - priv->active_config = 0; - - usbi_info (ctx, "active config: %u, first config: %u", priv->active_config, priv->first_config); - - 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 = 0, need_unref = 0; - - do { - dev = usbi_get_device_by_session_id(ctx, locationID); - if (!dev) { - usbi_info (ctx, "allocating new device for location 0x%08x", locationID); - dev = usbi_alloc_device(ctx, locationID); - need_unref = 1; - } else - usbi_info (ctx, "using existing device for location 0x%08x", locationID); - - if (!dev) { - ret = LIBUSB_ERROR_NO_MEM; - break; - } - - 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 ****/ - /* according to Apple's documentation the device must be open for DeviceRequest but we may not be able to open some - * devices and Apple's USB Prober doesn't bother to open the device before issuing a descriptor request */ - ret = (*(device))->DeviceRequest (device, &req); - if (ret != kIOReturnSuccess) { - int try_unsuspend = 1; -#if DeviceVersion >= 320 - UInt32 info; - - /* device may be suspended. unsuspend it and try again */ - /* 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 - - /* the device should be open before to device is unsuspended */ - (void) (*device)->USBDeviceOpenSeize(device); - - 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_warn (ctx, "could not retrieve device descriptor: %s. skipping device", darwin_error_str (ret)); - ret = -1; - break; - } - - /**** 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_warn (ctx, "idProduct from iokit (%04x) does not match idProduct in descriptor (%04x). skipping device", - idProduct, libusb_le16_to_cpu (priv->dev_descriptor.idProduct)); - ret = -1; - break; - } - - dev->bus_number = locationID >> 24; - dev->device_address = address; - - /* check current active configuration (and cache the first configuration value-- which may be used by claim_interface) */ - ret = darwin_check_configuration (ctx, dev, device); - if (ret < 0) - break; - - /* 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) - break; - - /* append the device to the list of discovered devices */ - discdevs = discovered_devs_append(*_discdevs, dev); - if (!discdevs) { - ret = LIBUSB_ERROR_NO_MEM; - break; - } - - *_discdevs = discdevs; - - usbi_info (ctx, "found device with address %d at %s", dev->device_address, priv->sys_path); - } while (0); - - if (need_unref) - libusb_unref_device(dev); - - return ret; -} - -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; - - if (0 == dpriv->open_count) { - kresult = darwin_get_device (dpriv->location, &darwin_device); - if (kresult) { - usbi_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "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); - } - } - - /* device opened successfully */ - dpriv->open_count++; - - /* 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_info (HANDLE_CTX (dev_handle), "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; - - if (dpriv->open_count == 0) { - /* something is probably very wrong if this is the case */ - usbi_err (HANDLE_CTX (dev_handle), "Close called on a device that was not open!\n"); - return; - } - - dpriv->open_count--; - - /* 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 (0 == dpriv->open_count) { - 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_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "Release: %s", darwin_error_str(kresult)); - } - - dpriv->device = NULL; - } - - /* file descriptors are maintained per-instance */ - usbi_remove_pollfd (HANDLE_CTX (dev_handle), priv->fds[0]); - close (priv->fds[1]); - close (priv->fds[0]); - - priv->fds[0] = priv->fds[1] = -1; -} - -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; - - *config = (int) dpriv->active_config; - - 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); - - dpriv->active_config = config; - - 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); - if (current_interface != ifc) - (void) IOObjectRelease (*usbInterfacep); - } - - /* 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_info (HANDLE_CTX (dev_handle), "building table of endpoints."); - - /* retrieve the total number of endpoints on this interface */ - kresult = (*(cInterface->interface))->GetNumEndpoints(cInterface->interface, &numep); - if (kresult) { - usbi_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "error getting pipe information for pipe %d: %s", i, darwin_error_str(kresult)); - - return darwin_to_libusb (kresult); - } - - usbi_info (HANDLE_CTX (dev_handle), "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; - SInt32 score; - - /* 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 && dpriv->first_config != 0) { - usbi_info (HANDLE_CTX (dev_handle), "no interface found; setting configuration: %d", dpriv->first_config); - - /* set the configuration */ - kresult = darwin_set_configuration (dev_handle, dpriv->first_config); - if (kresult != LIBUSB_SUCCESS) { - usbi_err (HANDLE_CTX (dev_handle), "could not set configuration"); - return kresult; - } - - kresult = darwin_get_interface (dpriv->device, iface, &usbInterface); - if (kresult) { - usbi_err (HANDLE_CTX (dev_handle), "darwin_get_interface: %s", darwin_error_str(kresult)); - return darwin_to_libusb (kresult); - } - } - - if (!usbInterface) { - usbi_err (HANDLE_CTX (dev_handle), "interface not found"); - return LIBUSB_ERROR_NOT_FOUND; - } - - /* get an interface to the device's interface */ - kresult = IOCreatePlugInInterfaceForService (usbInterface, kIOUSBInterfaceUserClientTypeID, - kIOCFPlugInInterfaceID, &plugInInterface, &score); - if (kresult) { - usbi_err (HANDLE_CTX (dev_handle), "IOCreatePlugInInterfaceForService: %s", darwin_error_str(kresult)); - return darwin_to_libusb (kresult); - } - - if (!plugInInterface) { - usbi_err (HANDLE_CTX (dev_handle), "plugin interface not found"); - return LIBUSB_ERROR_NOT_FOUND; - } - - /* ignore release error */ - (void)IOObjectRelease (usbInterface); - - /* Do the actual claim */ - kresult = (*plugInInterface)->QueryInterface(plugInInterface, - CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID), - (LPVOID)&cInterface->interface); - if (kresult || !cInterface->interface) { - usbi_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "could not build endpoint table"); - return kresult; - } - - cInterface->cfSource = NULL; - - /* create async event source */ - kresult = (*(cInterface->interface))->CreateInterfaceAsyncEventSource (cInterface->interface, &cInterface->cfSource); - if (kresult != kIOReturnSuccess) { - usbi_err (HANDLE_CTX (dev_handle), "could not create async event source"); - - /* can't continue without an async event source */ - (void)darwin_release_interface (dev_handle, iface); - - return darwin_to_libusb (kresult); - } - - /* add the cfSource to the async thread's run loop */ - CFRunLoopAddSource(libusb_darwin_acfl, cInterface->cfSource, kCFRunLoopDefaultMode); - - usbi_info (HANDLE_CTX (dev_handle), "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 */ - if (cInterface->cfSource) { - CFRunLoopRemoveSource (libusb_darwin_acfl, cInterface->cfSource, kCFRunLoopDefaultMode); - CFRelease (cInterface->cfSource); - } - - kresult = (*(cInterface->interface))->USBInterfaceClose(cInterface->interface); - if (kresult) - usbi_err (HANDLE_CTX (dev_handle), "USBInterfaceClose: %s", darwin_error_str(kresult)); - - kresult = (*(cInterface->interface))->Release(cInterface->interface); - if (kresult != kIOReturnSuccess) - usbi_err (HANDLE_CTX (dev_handle), "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); - - /* update list of endpoints */ - kresult = get_endpoints (dev_handle, iface); - if (kresult) { - /* this should not happen */ - darwin_release_interface (dev_handle, iface); - usbi_err (HANDLE_CTX (dev_handle), "could not build endpoint table"); - return kresult; - } - - 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_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "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_err (TRANSFER_CTX (transfer), "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_err (TRANSFER_CTX (transfer), "bulk transfer failed (dir = %s): %s (code = 0x%08x)", is_read ? "In" : "Out", - darwin_error_str(ret), 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_err (TRANSFER_CTX (transfer), "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_err (TRANSFER_CTX (transfer), "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_err (TRANSFER_CTX (transfer), "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 be in bus order from libusb_fill_control_setup */ - tpriv->req.wValue = OSSwapLittleToHostInt16 (setup->wValue); - tpriv->req.wIndex = OSSwapLittleToHostInt16 (setup->wIndex); - tpriv->req.wLength = OSSwapLittleToHostInt16 (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_err (TRANSFER_CTX (transfer), "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_err (TRANSFER_CTX(transfer), "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_info (ITRANSFER_CTX (itransfer), "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_err (TRANSFER_CTX (transfer), "endpoint not found on any open interface"); - - return LIBUSB_ERROR_NOT_FOUND; - } - - cInterface = &priv->interfaces[iface]; - - usbi_info (ITRANSFER_CTX (itransfer), "WARNING: aborting all transactions on interface %d pipe %d", iface, pipeRef); - - /* abort transactions */ - (*(cInterface->interface))->AbortPipe (cInterface->interface, pipeRef); - - usbi_info (ITRANSFER_CTX (itransfer), "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_err (TRANSFER_CTX(transfer), "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_info (ITRANSFER_CTX (itransfer), "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 int darwin_transfer_status (struct usbi_transfer *itransfer, kern_return_t result) { - switch (result) { - case kIOReturnUnderrun: - case kIOReturnSuccess: - return LIBUSB_TRANSFER_COMPLETED; - case kIOReturnAborted: - return LIBUSB_TRANSFER_CANCELLED; - case kIOUSBPipeStalled: - usbi_warn (ITRANSFER_CTX (itransfer), "transfer error: pipe is stalled"); - return LIBUSB_TRANSFER_STALL; - case kIOReturnOverrun: - usbi_err (ITRANSFER_CTX (itransfer), "transfer error: data overrun"); - return LIBUSB_TRANSFER_OVERFLOW; - case kIOUSBTransactionTimeout: - usbi_err (ITRANSFER_CTX (itransfer), "transfer error: timed out"); - return LIBUSB_TRANSFER_TIMED_OUT; - default: - usbi_err (ITRANSFER_CTX (itransfer), "transfer error: %s (value = 0x%08x)", darwin_error_str (result), result); - return LIBUSB_TRANSFER_ERROR; - } -} - -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); - struct darwin_transfer_priv *tpriv = usbi_transfer_get_os_priv(itransfer); - int isIsoc = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS == transfer->type; - int isBulk = LIBUSB_TRANSFER_TYPE_BULK == transfer->type; - int isControl = LIBUSB_TRANSFER_TYPE_CONTROL == transfer->type; - int isInterrupt = LIBUSB_TRANSFER_TYPE_INTERRUPT == transfer->type; - int i; - - if (!isIsoc && !isBulk && !isControl && !isInterrupt) { - usbi_err (TRANSFER_CTX(transfer), "unknown endpoint type %d", transfer->type); - return; - } - - usbi_info (ITRANSFER_CTX (itransfer), "handling %s completion with kernel status %d", - isControl ? "control" : isBulk ? "bulk" : isIsoc ? "isoc" : "interrupt", result); - - if (kIOReturnSuccess == result || kIOReturnUnderrun == result) { - if (isIsoc && 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[i]; - lib_desc->status = darwin_to_libusb (tpriv->isoc_framelist[i].frStatus); - lib_desc->actual_length = tpriv->isoc_framelist[i].frActCount; - } - } else if (!isIsoc) - itransfer->transferred += io_size; - } - - /* it is ok to handle cancelled transfers without calling usbi_handle_transfer_cancellation (we catch timeout transfers) */ - usbi_handle_transfer_completion (itransfer, darwin_transfer_status (itransfer, result)); -} - -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; - - usbi_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_info (ctx, "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, struct libusb_device_handle) { - hpriv = (struct darwin_device_handle_priv *)handle->os_priv; - if (hpriv->fds[0] == pollfd->fd) - break; - } - - if (!(pollfd->revents & POLLERR)) { - ret = read (hpriv->fds[0], &message, sizeof (message)); - if (ret < sizeof (message)) - continue; - } else - /* could not poll the device-- response is to delete the device (this seems a little heavy-handed) */ - message = MESSAGE_DEVICE_GONE; - - switch (message) { - case MESSAGE_DEVICE_GONE: - /* remove the device's async port from the runloop */ - if (hpriv->cfSource) { - if (libusb_darwin_acfl) - CFRunLoopRemoveSource (libusb_darwin_acfl, hpriv->cfSource, kCFRunLoopDefaultMode); - CFRelease (hpriv->cfSource); - hpriv->cfSource = NULL; - } - - 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_err (ctx, "unknown message received from device pipe"); - } - } - - usbi_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 USBI_CLOCK_REALTIME: - /* CLOCK_REALTIME represents time since the epoch */ - host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clock_ref); - break; - case USBI_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, -}; - |