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Code Issues Releases Activity

Fix for directly connected FULL or LOW speed USB devices.

Browse Source 
Found by:	Sebastian Huber <sebastian.huber@embedded-brains.de>
MFC after:	1 week
This commit is contained in:
Hans Petter Selasky 2016-01-05 09:18:43 +00:00
parent a15691bf11
commit 076daeda4f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=293192
1 changed files with 21 additions and 6 deletions
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27
sys/dev/usb/controller/dwc_otg.c
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@ -456,6 +456,18 @@ dwc_otg_init_fifo(struct dwc_otg_softc *sc, uint8_t mode)
return (0);
}
static uint8_t
dwc_otg_uses_split(struct usb_device *udev)
{
/*
* When a LOW or FULL speed device is connected directly to
* the USB port we don't use split transactions:
*/
return (udev->speed != USB_SPEED_HIGH &&
udev->parent_hs_hub != NULL &&
udev->parent_hs_hub->parent_hub != NULL);
}
static void
dwc_otg_update_host_frame_interval(struct dwc_otg_softc *sc)
{
@ -3329,16 +3341,16 @@ dwc_otg_setup_standard_chain(struct usb_xfer *xfer)
else
hcchar |= (td->ep_type << HCCHAR_EPTYPE_SHIFT);
if (usbd_get_speed(xfer->xroot->udev) == USB_SPEED_LOW)
hcchar |= HCCHAR_LSPDDEV;
if (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN)
hcchar |= HCCHAR_EPDIR_IN;
switch (xfer->xroot->udev->speed) {
case USB_SPEED_FULL:
case USB_SPEED_LOW:
hcchar |= HCCHAR_LSPDDEV;
/* FALLTHROUGH */
case USB_SPEED_FULL:
/* check if root HUB port is running High Speed */
if (xfer->xroot->udev->parent_hs_hub != NULL) {
if (dwc_otg_uses_split(xfer->xroot->udev)) {
hcsplt = HCSPLT_SPLTENA |
(xfer->xroot->udev->hs_port_no <<
HCSPLT_PRTADDR_SHIFT) |
@ -4160,7 +4172,10 @@ dwc_otg_device_isoc_start(struct usb_xfer *xfer)
framenum = DSTS_SOFFN_GET(temp);
}
if (xfer->xroot->udev->parent_hs_hub != NULL)
/*
* Check if port is doing 8000 or 1000 frames per second:
*/
if (sc->sc_flags.status_high_speed)
framenum /= 8;
framenum &= DWC_OTG_FRAME_MASK;
@ -4837,7 +4852,7 @@ dwc_otg_xfer_setup(struct usb_setup_params *parm)
td = USB_ADD_BYTES(parm->buf, parm->size[0]);
/* compute shared bandwidth resource index for TT */
if (parm->udev->parent_hs_hub != NULL && parm->udev->speed != USB_SPEED_HIGH) {
if (dwc_otg_uses_split(parm->udev)) {
if (parm->udev->parent_hs_hub->ddesc.bDeviceProtocol == UDPROTO_HSHUBMTT)
td->tt_index = parm->udev->device_index;
else