PERFORCE change 175279 for review
Hans Petter Selasky
hselasky at FreeBSD.org
Tue Mar 2 08:24:48 UTC 2010
http://p4web.freebsd.org/chv.cgi?CH=175279
Change 175279 by hselasky at hselasky_laptop001 on 2010/03/02 08:24:28
USB CORE (Device Side):
- make sure there is a way to reset the endpoint
FIFO on transfer errors for ISOCHRONOUS transfers
- patch by: HPS @
Affected files ...
.. //depot/projects/usb/src/sys/dev/usb/usb_transfer.c#175 edit
Differences ...
==== //depot/projects/usb/src/sys/dev/usb/usb_transfer.c#175 (text+ko) ====
@@ -2410,21 +2410,24 @@
* Check if we are supposed to stall the endpoint:
*/
if (xfer->flags.stall_pipe) {
+ struct usb_device *udev;
+ struct usb_xfer_root *info;
+
/* clear stall command */
xfer->flags.stall_pipe = 0;
+ /* get pointer to USB device */
+ info = xfer->xroot;
+ udev = info->udev;
+
/*
* Only stall BULK and INTERRUPT endpoints.
*/
type = (ep->edesc->bmAttributes & UE_XFERTYPE);
if ((type == UE_BULK) ||
(type == UE_INTERRUPT)) {
- struct usb_device *udev;
- struct usb_xfer_root *info;
uint8_t did_stall;
- info = xfer->xroot;
- udev = info->udev;
did_stall = 1;
if (udev->flags.usb_mode == USB_MODE_DEVICE) {
@@ -2452,6 +2455,17 @@
ep->is_stalled = 1;
return;
}
+ } else if (type == UE_ISOCHRONOUS) {
+
+ /*
+ * Make sure any FIFO overflow or other FIFO
+ * error conditions go away by resetting the
+ * endpoint FIFO through the clear stall
+ * method.
+ */
+ if (udev->flags.usb_mode == USB_MODE_DEVICE) {
+ (udev->bus->methods->clear_stall) (udev, ep);
+ }
}
}
/* Set or clear stall complete - special case */
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