diff options
| -rw-r--r-- | drivers/usb/core/hcd.c | 5 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 2 | ||||
| -rw-r--r-- | drivers/usb/core/message.c | 20 | ||||
| -rw-r--r-- | drivers/usb/core/usb.c | 2 | ||||
| -rw-r--r-- | drivers/usb/core/usb.h | 2 | ||||
| -rw-r--r-- | include/linux/usb.h | 2 |
6 files changed, 17 insertions, 16 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index fb82c500caf..cc5b1d3c368 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -943,7 +943,6 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) { int status; struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); - struct usb_host_endpoint *ep; unsigned long flags; if (!hcd) @@ -960,9 +959,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) // FIXME: verify that quiescing hc works right (RH cleans up) spin_lock_irqsave(&hcd_urb_list_lock, flags); - ep = (usb_pipein(urb->pipe) ? urb->dev->ep_in : urb->dev->ep_out) - [usb_pipeendpoint(urb->pipe)]; - if (unlikely(ep != urb->ep)) + if (unlikely(!urb->ep->enabled)) status = -ENOENT; else if (unlikely (urb->reject)) status = -EPERM; diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index f7b337feb3e..c8a01f66df7 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1999,7 +1999,7 @@ static void ep0_reinit(struct usb_device *udev) { usb_disable_endpoint(udev, 0 + USB_DIR_IN); usb_disable_endpoint(udev, 0 + USB_DIR_OUT); - udev->ep_in[0] = udev->ep_out[0] = &udev->ep0; + usb_enable_endpoint(udev, &udev->ep0); } #define usb_sndaddr0pipe() (PIPE_CONTROL << 30) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index d8f7b089a8f..0d618647758 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1013,8 +1013,10 @@ void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr) ep = dev->ep_in[epnum]; dev->ep_in[epnum] = NULL; } - if (ep && dev->bus) + if (ep) { + ep->enabled = 0; usb_hcd_endpoint_disable(dev, ep); + } } /** @@ -1096,23 +1098,21 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) * Resets the endpoint toggle, and sets dev->ep_{in,out} pointers. * For control endpoints, both the input and output sides are handled. */ -static void -usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep) +void usb_enable_endpoint(struct usb_device *dev, struct usb_host_endpoint *ep) { - unsigned int epaddr = ep->desc.bEndpointAddress; - unsigned int epnum = epaddr & USB_ENDPOINT_NUMBER_MASK; - int is_control; + int epnum = usb_endpoint_num(&ep->desc); + int is_out = usb_endpoint_dir_out(&ep->desc); + int is_control = usb_endpoint_xfer_control(&ep->desc); - is_control = ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_CONTROL); - if (usb_endpoint_out(epaddr) || is_control) { + if (is_out || is_control) { usb_settoggle(dev, epnum, 1, 0); dev->ep_out[epnum] = ep; } - if (!usb_endpoint_out(epaddr) || is_control) { + if (!is_out || is_control) { usb_settoggle(dev, epnum, 0, 0); dev->ep_in[epnum] = ep; } + ep->enabled = 1; } /* diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 0fee5c66fd6..d3c68d8eafb 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -260,7 +260,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE; dev->ep0.desc.bDescriptorType = USB_DT_ENDPOINT; /* ep0 maxpacket comes later, from device descriptor */ - dev->ep_in[0] = dev->ep_out[0] = &dev->ep0; + usb_enable_endpoint(dev, &dev->ep0); /* Save readable and stable topology id, distinguishing devices * by location for diagnostics, tools, driver model, etc. The diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index ad5fa0338f4..cde6e52b84f 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -8,6 +8,8 @@ extern int usb_create_ep_files(struct device *parent, struct usb_host_endpoint * struct usb_device *udev); extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint); +extern void usb_enable_endpoint(struct usb_device *dev, + struct usb_host_endpoint *ep); extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr); extern void usb_disable_interface (struct usb_device *dev, struct usb_interface *intf); diff --git a/include/linux/usb.h b/include/linux/usb.h index 105e3e9362d..818a1b4f737 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -52,6 +52,7 @@ struct ep_device; * @ep_dev: ep_device for sysfs info * @extra: descriptors following this endpoint in the configuration * @extralen: how many bytes of "extra" are valid + * @enabled: URBs may be submitted to this endpoint * * USB requests are always queued to a given endpoint, identified by a * descriptor within an active interface in a given USB configuration. @@ -64,6 +65,7 @@ struct usb_host_endpoint { unsigned char *extra; /* Extra descriptors */ int extralen; + int enabled; }; /* host-side wrapper for one interface setting's parsed descriptors */ |