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hw/usb-ohci.c: Implement remote wakeup

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Implement the wakeup callback in the OHCI USBPortOps, so that when
a downstream device wakes up it correctly causes the OHCI controller
to come out of suspend.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Peter Maydell 2011-06-07 19:50:12 +01:00 committed by Gerd Hoffmann
parent 4b0315d7ed
commit 9bba1eb180
1 changed files with 17 additions and 0 deletions
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17
hw/usb-ohci.c
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@ -367,6 +367,22 @@ static void ohci_detach(USBPort *port1)
ohci_set_interrupt(s, OHCI_INTR_RHSC);
}
static void ohci_wakeup(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
OHCIState *s = container_of(bus, OHCIState, bus);
int portnum = dev->port->index;
OHCIPort *port = &s->rhport[portnum];
if (port->ctrl & OHCI_PORT_PSS) {
DPRINTF("usb-ohci: port %d: wakeup\n", portnum);
port->ctrl |= OHCI_PORT_PSSC;
port->ctrl &= ~OHCI_PORT_PSS;
if ((s->ctl & OHCI_CTL_HCFS) == OHCI_USB_SUSPEND) {
ohci_set_interrupt(s, OHCI_INTR_RD);
}
}
}
/* Reset the controller */
static void ohci_reset(void *opaque)
{
@ -1675,6 +1691,7 @@ static CPUWriteMemoryFunc * const ohci_writefn[3]={
static USBPortOps ohci_port_ops = {
.attach = ohci_attach,
.detach = ohci_detach,
.wakeup = ohci_wakeup,
.complete = ohci_async_complete_packet,
};