haraldwolff/qemu-patch-raspberry4
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usb-hub: implement reset

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based on a patch from hkran@linux.vnet.ibm.com

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2011-11-23 13:31:08 +01:00
parent be35cbbc88
commit 20d183b6f0
1 changed files with 17 additions and 3 deletions
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20
hw/usb-hub.c
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@ -222,7 +222,22 @@ static void usb_hub_complete(USBPort *port, USBPacket *packet)
static void usb_hub_handle_reset(USBDevice *dev)
{
/* XXX: do it */
USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
USBHubPort *port;
int i;
for (i = 0; i < NUM_PORTS; i++) {
port = s->ports + i;
port->wPortStatus = PORT_STAT_POWER;
port->wPortChange = 0;
if (port->port.dev && port->port.dev->attached) {
port->wPortStatus |= PORT_STAT_CONNECTION;
port->wPortChange |= PORT_STAT_C_CONNECTION;
if (port->port.dev->speed == USB_SPEED_LOW) {
port->wPortStatus |= PORT_STAT_LOW_SPEED;
}
}
}
}
static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
@ -497,9 +512,8 @@ static int usb_hub_initfn(USBDevice *dev)
&port->port, s, i, &usb_hub_port_ops,
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
usb_port_location(&port->port, dev->port, i+1);
port->wPortStatus = PORT_STAT_POWER;
port->wPortChange = 0;
}
usb_hub_handle_reset(dev);
return 0;
}