diff options
| author | hselasky <hselasky@FreeBSD.org> | 2012-09-27 15:45:24 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2012-09-27 15:45:24 +0000 |
| commit | 52a6b7ce30ec585392dda7f2e15e64087a4335aa (patch) | |
| tree | 8195ce1c562bef66d4f2cc1ffbff0a3f590c45f1 /sys/dev/usb/controller/dwc_otg.c | |
| parent | b3f5fac122016c5fb684531f1d9a0f948f8736b0 (diff) | |
| download | FreeBSD-src-52a6b7ce30ec585392dda7f2e15e64087a4335aa.zip FreeBSD-src-52a6b7ce30ec585392dda7f2e15e64087a4335aa.tar.gz | |
Make sure the "wMaxPacketSize" limitations are respected.
Diffstat (limited to 'sys/dev/usb/controller/dwc_otg.c')
| -rw-r--r-- | sys/dev/usb/controller/dwc_otg.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/sys/dev/usb/controller/dwc_otg.c b/sys/dev/usb/controller/dwc_otg.c index d46d613..3086ae2 100644 --- a/sys/dev/usb/controller/dwc_otg.c +++ b/sys/dev/usb/controller/dwc_otg.c @@ -3974,9 +3974,34 @@ dwc_otg_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, return; } } else { - if (udev->speed != USB_SPEED_LOW && - udev->speed != USB_SPEED_FULL && - udev->speed != USB_SPEED_HIGH) { + uint16_t mps; + + mps = UGETW(edesc->wMaxPacketSize); + + /* Apply limitations of our USB host driver */ + + switch (udev->speed) { + case USB_SPEED_HIGH: + if (mps > 512) { + DPRINTF("wMaxPacketSize=0x%04x" + "is not supported\n", (int)mps); + /* not supported */ + return; + } + break; + + case USB_SPEED_FULL: + case USB_SPEED_LOW: + if (mps > 188) { + DPRINTF("wMaxPacketSize=0x%04x" + "is not supported\n", (int)mps); + /* not supported */ + return; + } + break; + + default: + DPRINTF("Invalid device speed\n"); /* not supported */ return; } |
