#endif
/**
- * usb_new_device - perform initial device setup (usbcore-internal)
+ * usb_configure_device_otg - FIXME (usbcore-internal)
* @udev: newly addressed device (in ADDRESS state)
*
- * This is called with devices which have been enumerated, but not yet
- * configured. The device descriptor is available, but not descriptors
- * for any device configuration. The caller must have locked either
- * the parent hub (if udev is a normal device) or else the
- * usb_bus_list_lock (if udev is a root hub). The parent's pointer to
- * udev has already been installed, but udev is not yet visible through
- * sysfs or other filesystem code.
- *
- * It will return if the device is configured properly or not. Zero if
- * the interface was registered with the driver core; else a negative
- * errno value.
- *
- * This call is synchronous, and may not be used in an interrupt context.
- *
- * Only the hub driver or root-hub registrar should ever call this.
+ * Do configuration for On-The-Go devices
*/
-int usb_new_device(struct usb_device *udev)
+static int usb_configure_device_otg(struct usb_device *udev)
{
- int err;
-
- /* Determine quirks */
- usb_detect_quirks(udev);
-
- err = usb_get_configuration(udev);
- if (err < 0) {
- dev_err(&udev->dev, "can't read configurations, error %d\n",
- err);
- goto fail;
- }
-
- /* read the standard strings and cache them if present */
- udev->product = usb_cache_string(udev, udev->descriptor.iProduct);
- udev->manufacturer = usb_cache_string(udev,
- udev->descriptor.iManufacturer);
- udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber);
-
- /* Tell the world! */
- dev_dbg(&udev->dev, "new device strings: Mfr=%d, Product=%d, "
- "SerialNumber=%d\n",
- udev->descriptor.iManufacturer,
- udev->descriptor.iProduct,
- udev->descriptor.iSerialNumber);
- show_string(udev, "Product", udev->product);
- show_string(udev, "Manufacturer", udev->manufacturer);
- show_string(udev, "SerialNumber", udev->serial);
+ int err = 0;
#ifdef CONFIG_USB_OTG
/*
err = -ENOTSUPP;
goto fail;
}
+fail:
#endif
+ return err;
+}
+
+/**
+ * usb_configure_device - Detect and probe device intfs/otg (usbcore-internal)
+ * @udev: newly addressed device (in ADDRESS state)
+ *
+ * This is only called by usb_new_device() and usb_authorize_device()
+ * and FIXME -- all comments that apply to them apply here wrt to
+ * environment.
+ *
+ * If the device is WUSB and not authorized, we don't attempt to read
+ * the string descriptors, as they will be errored out by the device
+ * until it has been authorized.
+ */
+static int usb_configure_device(struct usb_device *udev)
+{
+ int err;
+
+ if (udev->config == NULL) {
+ err = usb_get_configuration(udev);
+ if (err < 0) {
+ dev_err(&udev->dev, "can't read configurations, error %d\n",
+ err);
+ goto fail;
+ }
+ }
+ if (udev->wusb == 1 && udev->authorized == 0) {
+ udev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL);
+ udev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL);
+ udev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL);
+ }
+ else {
+ /* read the standard strings and cache them if present */
+ udev->product = usb_cache_string(udev, udev->descriptor.iProduct);
+ udev->manufacturer = usb_cache_string(udev,
+ udev->descriptor.iManufacturer);
+ udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber);
+ }
+ err = usb_configure_device_otg(udev);
+fail:
+ return err;
+}
+
+
+/**
+ * usb_new_device - perform initial device setup (usbcore-internal)
+ * @udev: newly addressed device (in ADDRESS state)
+ *
+ * This is called with devices which have been enumerated, but not yet
+ * configured. The device descriptor is available, but not descriptors
+ * for any device configuration. The caller must have locked either
+ * the parent hub (if udev is a normal device) or else the
+ * usb_bus_list_lock (if udev is a root hub). The parent's pointer to
+ * udev has already been installed, but udev is not yet visible through
+ * sysfs or other filesystem code.
+ *
+ * It will return if the device is configured properly or not. Zero if
+ * the interface was registered with the driver core; else a negative
+ * errno value.
+ *
+ * This call is synchronous, and may not be used in an interrupt context.
+ *
+ * Only the hub driver or root-hub registrar should ever call this.
+ */
+int usb_new_device(struct usb_device *udev)
+{
+ int err;
+
+ usb_detect_quirks(udev); /* Determine quirks */
+ err = usb_configure_device(udev); /* detect & probe dev/intfs */
+ if (err < 0)
+ goto fail;
/* export the usbdev device-node for libusb */
udev->dev.devt = MKDEV(USB_DEVICE_MAJOR,
(((udev->bus->busnum-1) * 128) + (udev->devnum-1)));
err = device_add(&udev->dev);
if (err) {
dev_err(&udev->dev, "can't device_add, error %d\n", err);
- if (udev->parent)
- usb_autosuspend_device(udev->parent);
goto fail;
}
-exit:
+ /* Tell the world! */
+ dev_dbg(&udev->dev, "new device strings: Mfr=%d, Product=%d, "
+ "SerialNumber=%d\n",
+ udev->descriptor.iManufacturer,
+ udev->descriptor.iProduct,
+ udev->descriptor.iSerialNumber);
+ show_string(udev, "Product", udev->product);
+ show_string(udev, "Manufacturer", udev->manufacturer);
+ show_string(udev, "SerialNumber", udev->serial);
return err;
fail:
usb_set_device_state(udev, USB_STATE_NOTATTACHED);
- goto exit;
+ return err;
}
static int hub_port_status(struct usb_hub *hub, int port1,
projects / linux-2.6-omap-h63xx.git / blobdiff