diff options
Diffstat (limited to 'sys/dev/usb/controller/xhci.c')
| -rw-r--r-- | sys/dev/usb/controller/xhci.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/dev/usb/controller/xhci.c b/sys/dev/usb/controller/xhci.c index f6c8c0e..0df4c4d 100644 --- a/sys/dev/usb/controller/xhci.c +++ b/sys/dev/usb/controller/xhci.c @@ -3048,7 +3048,9 @@ xhci_roothub_exec(struct usb_device *udev, } port = XHCI_PORTSC(index); - v = XREAD4(sc, oper, port) & ~XHCI_PS_CLEAR; + v = XREAD4(sc, oper, port); + i = XHCI_PS_PLS_GET(v); + v &= ~XHCI_PS_CLEAR; switch (value) { case UHF_C_BH_PORT_RESET: @@ -3082,6 +3084,17 @@ xhci_roothub_exec(struct usb_device *udev, XWRITE4(sc, oper, port, v & ~XHCI_PS_PIC_SET(3)); break; case UHF_PORT_SUSPEND: + + /* U3 -> U15 */ + if (i == 3) { + XWRITE4(sc, oper, port, v | + XHCI_PS_PLS_SET(0xF) | XHCI_PS_LWS); + } + + /* wait 20ms for resume sequence to complete */ + usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50); + + /* U0 */ XWRITE4(sc, oper, port, v | XHCI_PS_PLS_SET(0) | XHCI_PS_LWS); break; |
