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authorGerd Hoffmann <kraxel@redhat.com>2012-01-10 17:08:13 +0100
committerGerd Hoffmann <kraxel@redhat.com>2012-02-10 11:31:57 +0100
commit06c750888c57bdc374feaa097f6cbc720210b834 (patch)
tree68164b58d1c869c0fbd7995e612d8926bc1649a3 /hw
parent73796fe6228ae1e294b4946c6c90337141cacc42 (diff)
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>
Diffstat (limited to 'hw')
-rw-r--r--hw/usb-hub.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/hw/usb-hub.c b/hw/usb-hub.c
index 0f3b2dda0..bd7641c4b 100644
--- a/hw/usb-hub.c
+++ b/hw/usb-hub.c
@@ -220,6 +220,26 @@ static void usb_hub_complete(USBPort *port, USBPacket *packet)
s->dev.port->ops->complete(s->dev.port, packet);
}
+static USBDevice *usb_hub_find_device(USBDevice *dev, uint8_t addr)
+{
+ USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
+ USBHubPort *port;
+ USBDevice *downstream;
+ int i;
+
+ for (i = 0; i < NUM_PORTS; i++) {
+ port = &s->ports[i];
+ if (!(port->wPortStatus & PORT_STAT_ENABLE)) {
+ continue;
+ }
+ downstream = usb_find_device(&port->port, addr);
+ if (downstream != NULL) {
+ return downstream;
+ }
+ }
+ return NULL;
+}
+
static void usb_hub_handle_reset(USBDevice *dev)
{
USBHubState *s = DO_UPCAST(USBHubState, dev, dev);
@@ -541,6 +561,7 @@ static void usb_hub_class_initfn(ObjectClass *klass, void *data)
uc->init = usb_hub_initfn;
uc->product_desc = "QEMU USB Hub";
uc->usb_desc = &desc_hub;
+ uc->find_device = usb_hub_find_device;
uc->handle_packet = usb_hub_handle_packet;
uc->handle_reset = usb_hub_handle_reset;
uc->handle_control = usb_hub_handle_control;