diff options
Diffstat (limited to 'drivers/usb/gadget/net2280.c')
| -rw-r--r-- | drivers/usb/gadget/net2280.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 708c0b55dcc8..a1b650e11339 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -116,6 +116,10 @@ static bool enable_suspend = 0; /* "modprobe net2280 enable_suspend=1" etc */ module_param (enable_suspend, bool, S_IRUGO); +/* force full-speed operation */ +static bool full_speed; +module_param(full_speed, bool, 0444); +MODULE_PARM_DESC(full_speed, "force full-speed mode -- for testing only!"); #define DIR_STRING(bAddress) (((bAddress) & USB_DIR_IN) ? "in" : "out") @@ -1899,6 +1903,10 @@ static int net2280_start(struct usb_gadget *_gadget, retval = device_create_file (&dev->pdev->dev, &dev_attr_queues); if (retval) goto err_func; + /* Enable force-full-speed testing mode, if desired */ + if (full_speed) + writel(1 << FORCE_FULL_SPEED_MODE, &dev->usb->xcvrdiag); + /* ... then enable host detection and ep0; and we're ready * for set_configuration as well as eventual disconnect. */ @@ -1957,6 +1965,10 @@ static int net2280_stop(struct usb_gadget *_gadget, dev->driver = NULL; net2280_led_active (dev, 0); + + /* Disable full-speed test mode */ + writel(0, &dev->usb->xcvrdiag); + device_remove_file (&dev->pdev->dev, &dev_attr_function); device_remove_file (&dev->pdev->dev, &dev_attr_queues); @@ -2841,6 +2853,9 @@ static void net2280_shutdown (struct pci_dev *pdev) /* disable the pullup so the host will think we're gone */ writel (0, &dev->usb->usbctl); + + /* Disable full-speed test mode */ + writel(0, &dev->usb->xcvrdiag); } |