diff options
| author | hselasky <hselasky@FreeBSD.org> | 2012-10-24 07:23:29 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2012-10-24 07:23:29 +0000 |
| commit | ddc1ceecb37fd6540ef54cf3194f65a36fd330e0 (patch) | |
| tree | b2f5dc26223f979365eae70ebbdf09f90d4c8dbd /sys/dev/usb/controller/uhci.c | |
| parent | 63a4ea167200b31a05ebe40e5f607b26ec0a7c78 (diff) | |
| download | FreeBSD-src-ddc1ceecb37fd6540ef54cf3194f65a36fd330e0.zip FreeBSD-src-ddc1ceecb37fd6540ef54cf3194f65a36fd330e0.tar.gz | |
Make several timing parameters of the USB enumeration sequence tuneable.
Also update the port reset time from 250ms to 50ms. Some USB devices
have a hard limit in hardware at 222ms for the port reset time and will
not enumerate unless this delay is closer to the usb.org defined value.
This patch can fix enumeration with some USB devices.
Tested by: Guido van Rooij
Submitted by: Nick Hibma
MFC after: 1 week
Diffstat (limited to 'sys/dev/usb/controller/uhci.c')
| -rw-r--r-- | sys/dev/usb/controller/uhci.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/usb/controller/uhci.c b/sys/dev/usb/controller/uhci.c index 680aac2..39588d4 100644 --- a/sys/dev/usb/controller/uhci.c +++ b/sys/dev/usb/controller/uhci.c @@ -2393,7 +2393,7 @@ uhci_portreset(uhci_softc_t *sc, uint16_t index) UWRITE2(sc, port, x | UHCI_PORTSC_PR); usb_pause_mtx(&sc->sc_bus.bus_mtx, - USB_MS_TO_TICKS(USB_PORT_ROOT_RESET_DELAY)); + USB_MS_TO_TICKS(usb_port_root_reset_delay)); DPRINTFN(4, "uhci port %d reset, status0 = 0x%04x\n", index, UREAD2(sc, port)); @@ -2421,7 +2421,7 @@ uhci_portreset(uhci_softc_t *sc, uint16_t index) for (lim = 0; lim < 12; lim++) { usb_pause_mtx(&sc->sc_bus.bus_mtx, - USB_MS_TO_TICKS(USB_PORT_RESET_DELAY)); + USB_MS_TO_TICKS(usb_port_reset_delay)); x = UREAD2(sc, port); |
