diff options
Diffstat (limited to 'sys/dev/usb/controller/ehci.c')
| -rw-r--r-- | sys/dev/usb/controller/ehci.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/dev/usb/controller/ehci.c b/sys/dev/usb/controller/ehci.c index 51b012b..f0616f9 100644 --- a/sys/dev/usb/controller/ehci.c +++ b/sys/dev/usb/controller/ehci.c @@ -2454,6 +2454,7 @@ ehci_device_isoc_fs_enter(struct usb_xfer *xfer) uint16_t tlen; uint8_t sa; uint8_t sb; + uint8_t first = 1; #ifdef USB_DEBUG uint8_t once = 1; @@ -2618,6 +2619,16 @@ ehci_device_isoc_fs_enter(struct usb_xfer *xfer) EHCI_SITD_IOC | EHCI_SITD_ACTIVE | EHCI_SITD_SET_LEN(*plen)); + } else if (first != 0) { + /* + * Workaround for lost or too early + * completion interrupt: + */ + first = 0; + td->sitd_status = htohc32(sc, + EHCI_SITD_IOC | + EHCI_SITD_ACTIVE | + EHCI_SITD_SET_LEN(*plen)); } else { td->sitd_status = htohc32(sc, EHCI_SITD_ACTIVE | @@ -2759,6 +2770,7 @@ ehci_device_isoc_hs_enter(struct usb_xfer *xfer) uint8_t td_no; uint8_t page_no; uint8_t shift = usbd_xfer_get_fps_shift(xfer); + uint8_t first = 1; #ifdef USB_DEBUG uint8_t once = 1; @@ -2920,6 +2932,13 @@ ehci_device_isoc_hs_enter(struct usb_xfer *xfer) /* set IOC bit if we are complete */ if (nframes == 0) { td->itd_status[td_no - 1] |= htohc32(sc, EHCI_ITD_IOC); + } else if (first != 0) { + /* + * Workaround for lost or too early + * completion interrupt: + */ + first = 0; + td->itd_status[0] |= htohc32(sc, EHCI_ITD_IOC); } usb_pc_cpu_flush(td->page_cache); #ifdef USB_DEBUG |
