#include "darwin_usb.h"
-static pthread_mutex_t libusb_darwin_init_mutex = PTHREAD_MUTEX_INITIALIZER;
static int init_count = 0;
/* async event thread */
static int darwin_claim_interface(struct libusb_device_handle *dev_handle, uint8_t iface);
static int darwin_release_interface(struct libusb_device_handle *dev_handle, uint8_t iface);
static int darwin_reenumerate_device(struct libusb_device_handle *dev_handle, bool capture);
+static int darwin_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint);
static int darwin_reset_device(struct libusb_device_handle *dev_handle);
static void darwin_async_io_callback (void *refcon, IOReturn result, void *arg0);
struct darwin_cached_device *old_device;
io_service_t device;
- UInt64 session;
+ UInt64 session, locationID;
int ret;
usbi_mutex_lock(&active_contexts_lock);
/* get the location from the i/o registry */
ret = get_ioregistry_value_number (device, CFSTR("sessionID"), kCFNumberSInt64Type, &session);
+ (void) get_ioregistry_value_number (device, CFSTR("locationID"), kCFNumberSInt32Type, &locationID);
IOObjectRelease (device);
if (!ret)
continue;
if (old_device->in_reenumerate) {
/* device is re-enumerating. do not dereference the device at this time. libusb_reset_device()
* will deref if needed. */
- usbi_dbg ("detected device detached due to re-enumeration");
+ usbi_dbg ("detected device detached due to re-enumeration. sessionID: 0x%" PRIx64 ", locationID: 0x%" PRIx64,
+ session, locationID);
/* the device object is no longer usable so go ahead and release it */
if (old_device->device) {
list_for_each_entry_safe(dev, next, &darwin_cached_devices, list, struct darwin_cached_device) {
darwin_deref_cached_device(dev);
}
-
- darwin_cached_devices.prev = darwin_cached_devices.next = NULL;
}
static int darwin_init(struct libusb_context *ctx) {
bool first_init;
int rc;
- pthread_mutex_lock (&libusb_darwin_init_mutex);
-
first_init = (1 == ++init_count);
do {
if (first_init) {
- assert (NULL == darwin_cached_devices.next);
- list_init (&darwin_cached_devices);
-
+ if (NULL == darwin_cached_devices.next) {
+ list_init (&darwin_cached_devices);
+ }
+ assert(list_empty(&darwin_cached_devices));
#if !defined(HAVE_CLOCK_GETTIME)
/* create the clocks that will be used if clock_gettime() is not available */
host_name_port_t host_self;
--init_count;
}
- pthread_mutex_unlock (&libusb_darwin_init_mutex);
-
return rc;
}
static void darwin_exit (struct libusb_context *ctx) {
UNUSED(ctx);
- pthread_mutex_lock (&libusb_darwin_init_mutex);
-
if (0 == --init_count) {
/* stop the event runloop and wait for the thread to terminate. */
pthread_mutex_lock (&libusb_darwin_at_mutex);
mach_port_deallocate(mach_task_self(), clock_monotonic);
#endif
}
-
- pthread_mutex_unlock (&libusb_darwin_init_mutex);
}
static int get_configuration_index (struct libusb_device *dev, UInt8 config_value) {
priv->dev = cached_device;
darwin_ref_cached_device (priv->dev);
dev->port_number = cached_device->port;
+ /* the location ID encodes the path to the device. the top byte of the location ID contains the bus number
+ (numbered from 0). the remaining bytes can be used to construct the device tree for that bus. */
dev->bus_number = cached_device->location >> 24;
assert(cached_device->address <= UINT8_MAX);
dev->device_address = (uint8_t)cached_device->address;
usbi_localize_device_descriptor(&dev->device_descriptor);
dev->session_data = cached_device->session;
+ if (NULL != dev->parent_dev) {
+ libusb_unref_device(dev->parent_dev);
+ dev->parent_dev = NULL;
+ }
+
if (cached_device->parent_session > 0) {
dev->parent_dev = usbi_get_device_by_session_id (ctx, (unsigned long) cached_device->parent_session);
- } else {
- dev->parent_dev = NULL;
}
(*(priv->dev->device))->GetDeviceSpeed (priv->dev->device, &devSpeed);
case kUSBDeviceSpeedLow: dev->speed = LIBUSB_SPEED_LOW; break;
case kUSBDeviceSpeedFull: dev->speed = LIBUSB_SPEED_FULL; break;
case kUSBDeviceSpeedHigh: dev->speed = LIBUSB_SPEED_HIGH; break;
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
case kUSBDeviceSpeedSuper: dev->speed = LIBUSB_SPEED_SUPER; break;
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
}
dpriv->open_count--;
+ if (NULL == dpriv->device) {
+ usbi_warn (HANDLE_CTX (dev_handle), "darwin_close device missing IOService");
+ return;
+ }
/* make sure all interfaces are released */
for (i = 0 ; i < USB_MAXINTERFACES ; i++)
}
if (!usbInterface) {
- usbi_err (HANDLE_CTX (dev_handle), "interface not found");
+ usbi_info (HANDLE_CTX (dev_handle), "interface not found");
return LIBUSB_ERROR_NOT_FOUND;
}
/* claim the interface */
kresult = (*(cInterface->interface))->USBInterfaceOpen(cInterface->interface);
if (kresult != kIOReturnSuccess) {
- usbi_err (HANDLE_CTX (dev_handle), "USBInterfaceOpen: %s", darwin_error_str(kresult));
+ usbi_info (HANDLE_CTX (dev_handle), "USBInterfaceOpen: %s", darwin_error_str(kresult));
return darwin_to_libusb (kresult);
}
struct darwin_device_handle_priv *priv = usbi_get_device_handle_priv(dev_handle);
IOReturn kresult;
enum libusb_error ret;
+ int i;
+ uint8_t old_alt_setting;
/* current interface */
struct darwin_interface *cInterface = &priv->interfaces[iface];
return LIBUSB_ERROR_NO_DEVICE;
kresult = (*(cInterface->interface))->SetAlternateInterface (cInterface->interface, altsetting);
+ if (kresult == kIOReturnSuccess) {
+ /* update the list of endpoints */
+ ret = get_endpoints (dev_handle, iface);
+ if (ret) {
+ /* this should not happen */
+ darwin_release_interface (dev_handle, iface);
+ usbi_err (HANDLE_CTX (dev_handle), "could not build endpoint table");
+ }
+ return ret;
+ }
+ else
+ usbi_warn (HANDLE_CTX (dev_handle), "SetAlternateInterface: %s", darwin_error_str(kresult));
+
+ if (kresult != kIOUSBPipeStalled)
+ return darwin_to_libusb (kresult);
+
/* If a device only supports a default setting for the specified interface, then a STALL
(kIOUSBPipeStalled) may be returned. Ref: USB 2.0 specs 9.4.10.
- Mimick the behaviour in e.g. the Linux kernel: in such case, reset all endpoints,
- and hide errors.Current implementation resets the entire device, instead of single
- interface, due to historic reasons. */
- if (kresult != kIOReturnSuccess) {
- usbi_warn (HANDLE_CTX (dev_handle), "SetAlternateInterface: %s", darwin_error_str(kresult));
- darwin_reset_device (dev_handle);
- }
+ Mimick the behaviour in e.g. the Linux kernel: in such case, reset all endpoints
+ of the interface (as would have been done per 9.1.1.5) and return success. */
+
+ /* For some reason we need to reclaim the interface after the pipe error */
+ ret = darwin_claim_interface (dev_handle, iface);
- /* update list of endpoints */
- ret = get_endpoints (dev_handle, iface);
if (ret) {
- /* this should not happen */
darwin_release_interface (dev_handle, iface);
- usbi_err (HANDLE_CTX (dev_handle), "could not build endpoint table");
+ usbi_err (HANDLE_CTX (dev_handle), "could not reclaim interface");
}
- return ret;
+ /* Return error if a change to another value was attempted */
+ kresult = (*(cInterface->interface))->GetAlternateSetting (cInterface->interface, &old_alt_setting);
+ if (kresult == kIOReturnSuccess && altsetting != old_alt_setting)
+ return LIBUSB_ERROR_PIPE;
+
+ for (i = 0 ; i < cInterface->num_endpoints ; i++)
+ darwin_clear_halt(dev_handle, cInterface->endpoint_addrs[i]);
+
+ return LIBUSB_SUCCESS;
}
static int darwin_clear_halt(struct libusb_device_handle *dev_handle, unsigned char endpoint) {
}
if (dpriv->capture_count == 0) {
+ usbi_dbg ("attempting to detach kernel driver from device");
+
+ if (!darwin_has_capture_entitlements ()) {
+ usbi_info (HANDLE_CTX (dev_handle), "no capture entitlements. can not detach the kernel driver for this device");
+ return LIBUSB_ERROR_NOT_SUPPORTED;
+ }
+
/* request authorization */
- if (darwin_has_capture_entitlements ()) {
- kresult = IOServiceAuthorize (dpriv->service, kIOServiceInteractionAllowed);
- if (kresult != kIOReturnSuccess) {
- usbi_err (HANDLE_CTX (dev_handle), "IOServiceAuthorize: %s", darwin_error_str(kresult));
- return darwin_to_libusb (kresult);
- }
- /* we need start() to be called again for authorization status to refresh */
- err = darwin_reload_device (dev_handle);
- if (err != LIBUSB_SUCCESS) {
- return err;
- }
+ kresult = IOServiceAuthorize (dpriv->service, kIOServiceInteractionAllowed);
+ if (kresult != kIOReturnSuccess) {
+ usbi_warn (HANDLE_CTX (dev_handle), "IOServiceAuthorize: %s", darwin_error_str(kresult));
+ return darwin_to_libusb (kresult);
+ }
+
+ /* we need start() to be called again for authorization status to refresh */
+ err = darwin_reload_device (dev_handle);
+ if (err != LIBUSB_SUCCESS) {
+ return err;
}
+
/* reset device to release existing drivers */
err = darwin_reenumerate_device (dev_handle, true);
if (err != LIBUSB_SUCCESS) {
dpriv->capture_count--;
if (dpriv->capture_count > 0) {
return LIBUSB_SUCCESS;
- } else {
- dpriv->capture_count = 0;
}
+
+ usbi_dbg ("reenumerating device for kernel driver attach");
+
/* reset device to attach kernel drivers */
return darwin_reenumerate_device (dev_handle, false);
}
if (dev_handle->auto_detach_kernel_driver) {
ret = darwin_detach_kernel_driver (dev_handle, iface);
if (ret != LIBUSB_SUCCESS) {
- return ret;
+ usbi_info (HANDLE_CTX (dev_handle), "failed to auto-detach the kernel driver for this device, ret=%d", ret);
}
}
+
return darwin_claim_interface (dev_handle, iface);
}
static int darwin_capture_release_interface(struct libusb_device_handle *dev_handle, uint8_t iface) {
enum libusb_error ret;
+ struct darwin_cached_device *dpriv = DARWIN_CACHED_DEVICE(dev_handle->dev);
ret = darwin_release_interface (dev_handle, iface);
if (ret != LIBUSB_SUCCESS) {
return ret;
}
- if (dev_handle->auto_detach_kernel_driver) {
+
+ if (dev_handle->auto_detach_kernel_driver && dpriv->capture_count > 0) {
ret = darwin_attach_kernel_driver (dev_handle, iface);
+ if (LIBUSB_SUCCESS != ret) {
+ usbi_info (HANDLE_CTX (dev_handle), "on attempt to reattach the kernel driver got ret=%d", ret);
+ }
+ /* ignore the error as the interface was successfully released */
}
- return ret;
+
+ return LIBUSB_SUCCESS;
}
#endif
projects / platform / upstream / libusb.git / blobdiff