usb-hub: implement find_device
Implement the find_device callback for the usb hub. It'll loop over all ports, calling usb_find_device for all enabled ports until it finds a matching device. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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parent
73796fe622
commit
06c750888c
21
hw/usb-hub.c
21
hw/usb-hub.c
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@ -220,6 +220,26 @@ static void usb_hub_complete(USBPort *port, USBPacket *packet)
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s->dev.port->ops->complete(s->dev.port, packet);
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}
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static USBDevice *usb_hub_find_device(USBDevice *dev, uint8_t addr)
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{
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USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
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USBHubPort *port;
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USBDevice *downstream;
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int i;
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for (i = 0; i < NUM_PORTS; i++) {
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port = &s->ports[i];
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if (!(port->wPortStatus & PORT_STAT_ENABLE)) {
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continue;
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}
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downstream = usb_find_device(&port->port, addr);
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if (downstream != NULL) {
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return downstream;
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}
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}
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return NULL;
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}
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static void usb_hub_handle_reset(USBDevice *dev)
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{
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USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
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@ -541,6 +561,7 @@ static void usb_hub_class_initfn(ObjectClass *klass, void *data)
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uc->init = usb_hub_initfn;
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uc->product_desc = "QEMU USB Hub";
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uc->usb_desc = &desc_hub;
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uc->find_device = usb_hub_find_device;
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uc->handle_packet = usb_hub_handle_packet;
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uc->handle_reset = usb_hub_handle_reset;
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uc->handle_control = usb_hub_handle_control;
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