From 06c750888c57bdc374feaa097f6cbc720210b834 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 10 Jan 2012 17:08:13 +0100 Subject: 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 --- hw/usb-hub.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'hw') 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; -- cgit v1.2.3