1513 lines
51 KiB
C
1513 lines
51 KiB
C
/*
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* darwin backend for libusb 1.0
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* Copyright (C) 2008-2010 Nathan Hjelm <hjelmn@users.sourceforge.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <config.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <mach/clock.h>
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#include <mach/clock_types.h>
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#include <mach/mach_host.h>
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#include <mach/mach_port.h>
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#include <IOKit/IOCFBundle.h>
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#include <IOKit/usb/IOUSBLib.h>
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#include <IOKit/IOCFPlugIn.h>
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#include "darwin_usb.h"
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static mach_port_t libusb_darwin_mp = 0; /* master port */
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static CFRunLoopRef libusb_darwin_acfl = NULL; /* async cf loop */
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static int initCount = 0;
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/* async event thread */
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static pthread_t libusb_darwin_at;
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static int darwin_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian);
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static int darwin_claim_interface(struct libusb_device_handle *dev_handle, int iface);
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static int darwin_release_interface(struct libusb_device_handle *dev_handle, int iface);
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static int darwin_reset_device(struct libusb_device_handle *dev_handle);
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static void darwin_async_io_callback (void *refcon, IOReturn result, void *arg0);
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static const char *darwin_error_str (int result) {
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switch (result) {
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case kIOReturnSuccess:
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return "no error";
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case kIOReturnNotOpen:
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return "device not opened for exclusive access";
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case kIOReturnNoDevice:
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return "no connection to an IOService";
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case kIOUSBNoAsyncPortErr:
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return "no async port has been opened for interface";
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case kIOReturnExclusiveAccess:
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return "another process has device opened for exclusive access";
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case kIOUSBPipeStalled:
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return "pipe is stalled";
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case kIOReturnError:
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return "could not establish a connection to the Darwin kernel";
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case kIOUSBTransactionTimeout:
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return "transaction timed out";
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case kIOReturnBadArgument:
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return "invalid argument";
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case kIOReturnAborted:
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return "transaction aborted";
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case kIOReturnNotResponding:
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return "device not responding";
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case kIOReturnOverrun:
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return "data overrun";
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case kIOReturnCannotWire:
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return "physical memory can not be wired down";
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default:
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return "unknown error";
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}
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}
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static int darwin_to_libusb (int result) {
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switch (result) {
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case kIOReturnSuccess:
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return LIBUSB_SUCCESS;
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case kIOReturnNotOpen:
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case kIOReturnNoDevice:
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return LIBUSB_ERROR_NO_DEVICE;
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case kIOReturnExclusiveAccess:
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return LIBUSB_ERROR_ACCESS;
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case kIOUSBPipeStalled:
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return LIBUSB_ERROR_PIPE;
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case kIOReturnBadArgument:
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return LIBUSB_ERROR_INVALID_PARAM;
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case kIOUSBTransactionTimeout:
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return LIBUSB_ERROR_TIMEOUT;
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case kIOReturnNotResponding:
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case kIOReturnAborted:
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case kIOReturnError:
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case kIOUSBNoAsyncPortErr:
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default:
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return LIBUSB_ERROR_OTHER;
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}
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}
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static int ep_to_pipeRef(struct libusb_device_handle *dev_handle, uint8_t ep, uint8_t *pipep, uint8_t *ifcp) {
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struct darwin_device_handle_priv *priv = (struct darwin_device_handle_priv *)dev_handle->os_priv;
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/* current interface */
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struct __darwin_interface *cInterface;
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int8_t i, iface;
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usbi_info (HANDLE_CTX(dev_handle), "converting ep address 0x%02x to pipeRef and interface", ep);
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for (iface = 0 ; iface < USB_MAXINTERFACES ; iface++) {
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cInterface = &priv->interfaces[iface];
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if (dev_handle->claimed_interfaces & (1 << iface)) {
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for (i = 0 ; i < cInterface->num_endpoints ; i++) {
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if (cInterface->endpoint_addrs[i] == ep) {
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*pipep = i + 1;
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*ifcp = iface;
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usbi_info (HANDLE_CTX(dev_handle), "pipe %d on interface %d matches", *pipep, *ifcp);
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return 0;
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}
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}
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}
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}
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/* No pipe found with the correct endpoint address */
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usbi_warn (HANDLE_CTX(dev_handle), "no pipeRef found with endpoint address 0x%02x.", ep);
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return -1;
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}
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static int usb_setup_device_iterator (io_iterator_t *deviceIterator) {
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return IOServiceGetMatchingServices(libusb_darwin_mp, IOServiceMatching(kIOUSBDeviceClassName), deviceIterator);
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}
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static usb_device_t **usb_get_next_device (io_iterator_t deviceIterator, UInt32 *locationp) {
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io_cf_plugin_ref_t *plugInInterface = NULL;
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usb_device_t **device;
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io_service_t usbDevice;
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long result;
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SInt32 score;
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if (!IOIteratorIsValid (deviceIterator))
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return NULL;
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while ((usbDevice = IOIteratorNext(deviceIterator))) {
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result = IOCreatePlugInInterfaceForService(usbDevice, kIOUSBDeviceUserClientTypeID,
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kIOCFPlugInInterfaceID, &plugInInterface,
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&score);
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if (kIOReturnSuccess == result && plugInInterface)
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break;
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usbi_dbg ("libusb/darwin.c usb_get_next_device: could not set up plugin for service: %s\n", darwin_error_str (result));
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}
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if (!usbDevice)
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return NULL;
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(void)IOObjectRelease(usbDevice);
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(void)(*plugInInterface)->QueryInterface(plugInInterface, CFUUIDGetUUIDBytes(DeviceInterfaceID),
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(LPVOID)&device);
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(*plugInInterface)->Stop(plugInInterface);
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IODestroyPlugInInterface (plugInInterface);
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(*(device))->GetLocationID(device, locationp);
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return device;
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}
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static kern_return_t darwin_get_device (uint32_t dev_location, usb_device_t ***darwin_device) {
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kern_return_t kresult;
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UInt32 location;
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io_iterator_t deviceIterator;
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kresult = usb_setup_device_iterator (&deviceIterator);
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if (kresult)
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return kresult;
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/* This port of libusb uses locations to keep track of devices. */
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while ((*darwin_device = usb_get_next_device (deviceIterator, &location)) != NULL) {
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if (location == dev_location)
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break;
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(**darwin_device)->Release(*darwin_device);
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}
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IOObjectRelease (deviceIterator);
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if (!(*darwin_device))
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return kIOReturnNoDevice;
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return kIOReturnSuccess;
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}
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static void darwin_devices_detached (void *ptr, io_iterator_t rem_devices) {
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struct libusb_context *ctx = (struct libusb_context *)ptr;
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struct libusb_device_handle *handle;
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struct darwin_device_priv *dpriv;
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struct darwin_device_handle_priv *priv;
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io_service_t device;
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long location;
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CFTypeRef locationCF;
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UInt32 message;
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usbi_info (ctx, "a device has been detached");
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while ((device = IOIteratorNext (rem_devices)) != 0) {
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/* get the location from the i/o registry */
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locationCF = IORegistryEntryCreateCFProperty (device, CFSTR(kUSBDevicePropertyLocationID), kCFAllocatorDefault, 0);
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CFNumberGetValue(locationCF, kCFNumberLongType, &location);
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CFRelease (locationCF);
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IOObjectRelease (device);
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usbi_mutex_lock(&ctx->open_devs_lock);
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list_for_each_entry(handle, &ctx->open_devs, list) {
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dpriv = (struct darwin_device_priv *)handle->dev->os_priv;
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/* the device may have been opened several times. write to each handle's event descriptor */
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if (dpriv->location == location && handle->os_priv) {
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priv = (struct darwin_device_handle_priv *)handle->os_priv;
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message = MESSAGE_DEVICE_GONE;
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write (priv->fds[1], &message, sizeof (message));
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}
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}
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usbi_mutex_unlock(&ctx->open_devs_lock);
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}
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}
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static void darwin_clear_iterator (io_iterator_t iter) {
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io_service_t device;
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while ((device = IOIteratorNext (iter)) != 0)
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IOObjectRelease (device);
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}
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static void *event_thread_main (void *arg0) {
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IOReturn kresult;
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struct libusb_context *ctx = (struct libusb_context *)arg0;
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/* hotplug (device removal) source */
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CFRunLoopSourceRef libusb_notification_cfsource;
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io_notification_port_t libusb_notification_port;
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io_iterator_t libusb_rem_device_iterator;
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usbi_info (ctx, "creating hotplug event source");
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CFRetain (CFRunLoopGetCurrent ());
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/* add the notification port to the run loop */
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libusb_notification_port = IONotificationPortCreate (libusb_darwin_mp);
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libusb_notification_cfsource = IONotificationPortGetRunLoopSource (libusb_notification_port);
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CFRunLoopAddSource(CFRunLoopGetCurrent (), libusb_notification_cfsource, kCFRunLoopDefaultMode);
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/* create notifications for removed devices */
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kresult = IOServiceAddMatchingNotification (libusb_notification_port, kIOTerminatedNotification,
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IOServiceMatching(kIOUSBDeviceClassName),
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(IOServiceMatchingCallback)darwin_devices_detached,
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(void *)ctx, &libusb_rem_device_iterator);
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if (kresult != kIOReturnSuccess) {
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usbi_err (ctx, "could not add hotplug event source: %s", darwin_error_str (kresult));
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pthread_exit ((void *)kresult);
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}
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/* arm notifiers */
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darwin_clear_iterator (libusb_rem_device_iterator);
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/* let the main thread know about the async runloop */
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libusb_darwin_acfl = CFRunLoopGetCurrent ();
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usbi_info (ctx, "libopenusb/darwin.c event_thread_main: thread ready to receive events");
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/* run the runloop */
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CFRunLoopRun();
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usbi_info (ctx, "libopenusb/darwin.c event_thread_main: thread exiting");
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/* delete notification port */
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CFRunLoopSourceInvalidate (libusb_notification_cfsource);
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IONotificationPortDestroy (libusb_notification_port);
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CFRelease (CFRunLoopGetCurrent ());
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libusb_darwin_acfl = NULL;
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pthread_exit (0);
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}
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static int darwin_init(struct libusb_context *ctx) {
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IOReturn kresult;
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if (!(initCount++)) {
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/* Create the master port for talking to IOKit */
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if (!libusb_darwin_mp) {
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kresult = IOMasterPort (MACH_PORT_NULL, &libusb_darwin_mp);
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if (kresult != kIOReturnSuccess || !libusb_darwin_mp)
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return darwin_to_libusb (kresult);
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}
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pthread_create (&libusb_darwin_at, NULL, event_thread_main, (void *)ctx);
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while (!libusb_darwin_acfl)
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usleep (10);
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}
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return 0;
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}
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static void darwin_exit (void) {
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if (!(--initCount)) {
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void *ret;
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/* stop the async runloop */
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CFRunLoopStop (libusb_darwin_acfl);
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pthread_join (libusb_darwin_at, &ret);
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if (libusb_darwin_mp)
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mach_port_deallocate(mach_task_self(), libusb_darwin_mp);
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libusb_darwin_mp = 0;
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}
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}
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static int darwin_get_device_descriptor(struct libusb_device *dev, unsigned char *buffer, int *host_endian) {
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struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
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/* return cached copy */
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memmove (buffer, &(priv->dev_descriptor), DEVICE_DESC_LENGTH);
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*host_endian = 0;
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return 0;
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}
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static int get_configuration_index (struct libusb_device *dev, int config_value) {
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struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
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UInt8 i, numConfig;
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IOUSBConfigurationDescriptorPtr desc;
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IOReturn kresult;
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/* is there a simpler way to determine the index? */
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kresult = (*(priv->device))->GetNumberOfConfigurations (priv->device, &numConfig);
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if (kresult != kIOReturnSuccess)
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return darwin_to_libusb (kresult);
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for (i = 0 ; i < numConfig ; i++) {
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(*(priv->device))->GetConfigurationDescriptorPtr (priv->device, i, &desc);
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if (libusb_le16_to_cpu (desc->bConfigurationValue) == config_value)
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return i;
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}
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/* configuration not found */
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return LIBUSB_ERROR_OTHER;
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}
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static int darwin_get_active_config_descriptor(struct libusb_device *dev, unsigned char *buffer, size_t len, int *host_endian) {
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struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
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UInt8 config_value;
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int config_index;
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IOReturn kresult;
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kresult = (*(priv->device))->GetConfiguration (priv->device, &config_value);
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if (kresult != kIOReturnSuccess)
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return darwin_to_libusb (kresult);
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config_index = get_configuration_index (dev, config_value);
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if (config_index < 0)
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return config_index;
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return darwin_get_config_descriptor (dev, config_index, buffer, len, host_endian);
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}
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static int darwin_get_config_descriptor(struct libusb_device *dev, uint8_t config_index, unsigned char *buffer, size_t len, int *host_endian) {
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struct darwin_device_priv *priv = (struct darwin_device_priv *)dev->os_priv;
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IOUSBConfigurationDescriptorPtr desc;
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IOReturn kresult;
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usb_device_t **device = NULL;
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if (!priv)
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return LIBUSB_ERROR_OTHER;
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if (!priv->device) {
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kresult = darwin_get_device (priv->location, &device);
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if (kresult || !device) {
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usbi_err (DEVICE_CTX (dev), "could not find device: %s", darwin_error_str (kresult));
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return darwin_to_libusb (kresult);
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}
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/* don't have to open the device to get a config descriptor */
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} else
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device = priv->device;
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kresult = (*device)->GetConfigurationDescriptorPtr (device, config_index, &desc);
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if (kresult == kIOReturnSuccess) {
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/* copy descriptor */
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if (libusb_le16_to_cpu(desc->wTotalLength) < len)
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len = libusb_le16_to_cpu(desc->wTotalLength);
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memmove (buffer, desc, len);
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/* GetConfigurationDescriptorPtr returns the descriptor in USB bus order */
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*host_endian = 0;
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}
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if (!priv->device)
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(*device)->Release (device);
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return darwin_to_libusb (kresult);
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}
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static int process_new_device (struct libusb_context *ctx, usb_device_t **device, UInt32 locationID, struct discovered_devs **_discdevs) {
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struct darwin_device_priv *priv;
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struct libusb_device *dev;
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struct discovered_devs *discdevs;
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UInt16 address, idVendor, idProduct;
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UInt8 bDeviceClass, bDeviceSubClass;
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IOUSBDevRequest req;
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int ret = 0, need_unref = 0;
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do {
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dev = usbi_get_device_by_session_id(ctx, locationID);
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if (!dev) {
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usbi_info (ctx, "allocating new device for location 0x%08x", locationID);
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dev = usbi_alloc_device(ctx, locationID);
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need_unref = 1;
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} else
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usbi_info (ctx, "using existing device for location 0x%08x", locationID);
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if (!dev) {
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ret = LIBUSB_ERROR_NO_MEM;
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break;
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}
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priv = (struct darwin_device_priv *)dev->os_priv;
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/* Set up request for device descriptor */
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req.bmRequestType = USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice);
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req.bRequest = kUSBRqGetDescriptor;
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req.wValue = kUSBDeviceDesc << 8;
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req.wIndex = 0;
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req.wLength = sizeof(IOUSBDeviceDescriptor);
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req.pData = &(priv->dev_descriptor);
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(*(device))->GetDeviceAddress (device, (USBDeviceAddress *)&address);
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(*(device))->GetDeviceProduct (device, &idProduct);
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(*(device))->GetDeviceVendor (device, &idVendor);
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(*(device))->GetDeviceClass (device, &bDeviceClass);
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(*(device))->GetDeviceSubClass (device, &bDeviceSubClass);
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/**** retrieve device descriptors ****/
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/* device must be open for DeviceRequest */
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(*device)->USBDeviceOpen(device);
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ret = (*(device))->DeviceRequest (device, &req);
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if (ret != kIOReturnSuccess) {
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int try_unsuspend = 1;
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#if DeviceVersion >= 320
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UInt32 info;
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/* device may be suspended. unsuspend it and try again */
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/* IOUSBFamily 320+ provides a way to detect device suspension but earlier versions do not */
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(void)(*device)->GetUSBDeviceInformation (device, &info);
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|
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try_unsuspend = info & (1 << kUSBInformationDeviceIsSuspendedBit);
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#endif
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if (try_unsuspend) {
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/* 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;
|
|
|
|
/* 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;
|
|
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_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;
|
|
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_info (HANDLE_CTX (dev_handle), "no interface found; selecting configuration" );
|
|
|
|
kresult = (*(dpriv->device))->GetNumberOfConfigurations (dpriv->device, &nConfig);
|
|
if (kresult != kIOReturnSuccess) {
|
|
usbi_err (HANDLE_CTX (dev_handle), "GetNumberOfConfigurations: %s", darwin_error_str(kresult));
|
|
return darwin_to_libusb(kresult);
|
|
}
|
|
|
|
if (nConfig < 1) {
|
|
usbi_err (HANDLE_CTX (dev_handle), "GetNumberOfConfigurations: no configurations");
|
|
return LIBUSB_ERROR_OTHER;
|
|
}
|
|
|
|
usbi_info (HANDLE_CTX (dev_handle), "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_err (HANDLE_CTX (dev_handle), "GetConfigurationDescriptorPtr: %s",
|
|
darwin_error_str(kresult));
|
|
|
|
new_config = 1;
|
|
} else
|
|
new_config = configDesc->bConfigurationValue;
|
|
|
|
usbi_info (HANDLE_CTX (dev_handle), "new configuration value is %d", new_config);
|
|
|
|
/* set the configuration */
|
|
kresult = darwin_set_configuration (dev_handle, new_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 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", darwin_error_str (result));
|
|
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) {
|
|
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;
|
|
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) {
|
|
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,
|
|
};
|
|
|