Record which USBDevice USBPort belongs too.

Ports on root hub will have NULL here. This is needed to reconstruct
path from device to its root hub to build device path.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

6 files changed, 8 insertions, 6 deletions

diff --git a/hw/usb-bus.c b/hw/usb-bus.c
index b692503f54..256b881571 100644
--- a/hw/usb-bus.c
+++ b/hw/usb-bus.c
@@ -110,11 +110,12 @@ USBDevice *usb_create_simple(USBBus *bus, const char *name)
 }
 
 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
-                       usb_attachfn attach)
+                       USBDevice *pdev, usb_attachfn attach)
 {
     port->opaque = opaque;
     port->index = index;
     port->attach = attach;
+    port->pdev = pdev;
     QTAILQ_INSERT_TAIL(&bus->free, port, next);
     bus->nfree++;
 }
diff --git a/hw/usb-hub.c b/hw/usb-hub.c
index 8e3a96b816..8a3f829c96 100644
--- a/hw/usb-hub.c
+++ b/hw/usb-hub.c
@@ -535,7 +535,7 @@ static int usb_hub_initfn(USBDevice *dev)
     for (i = 0; i < s->nb_ports; i++) {
         port = &s->ports[i];
         usb_register_port(usb_bus_from_device(dev),
-                          &port->port, s, i, usb_hub_attach);
+                          &port->port, s, i, &s->dev, usb_hub_attach);
         port->wPortStatus = PORT_STAT_POWER;
         port->wPortChange = 0;
     }
diff --git a/hw/usb-musb.c b/hw/usb-musb.c
index 7f15842962..9efe7a6344 100644
--- a/hw/usb-musb.c
+++ b/hw/usb-musb.c
@@ -343,7 +343,7 @@ struct MUSBState {
     }
 
     usb_bus_new(&s->bus, NULL /* FIXME */);
-    usb_register_port(&s->bus, &s->port, s, 0, musb_attach);
+    usb_register_port(&s->bus, &s->port, s, 0, NULL, musb_attach);
 
     return s;
 }
diff --git a/hw/usb-ohci.c b/hw/usb-ohci.c
index 8eb4a1e11a..240e8409af 100644
--- a/hw/usb-ohci.c
+++ b/hw/usb-ohci.c
@@ -1699,7 +1699,7 @@ static void usb_ohci_init(OHCIState *ohci, DeviceState *dev,
     usb_bus_new(&ohci->bus, dev);
     ohci->num_ports = num_ports;
     for (i = 0; i < num_ports; i++) {
-        usb_register_port(&ohci->bus, &ohci->rhport[i].port, ohci, i, ohci_attach);
+        usb_register_port(&ohci->bus, &ohci->rhport[i].port, ohci, i, NULL, ohci_attach);
     }
 
     ohci->async_td = 0;
diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c
index 1d834004b3..b9b822fcb1 100644
--- a/hw/usb-uhci.c
+++ b/hw/usb-uhci.c
@@ -1115,7 +1115,7 @@ static int usb_uhci_common_initfn(UHCIState *s)
 
     usb_bus_new(&s->bus, &s->dev.qdev);
     for(i = 0; i < NB_PORTS; i++) {
-        usb_register_port(&s->bus, &s->ports[i].port, s, i, uhci_attach);
+        usb_register_port(&s->bus, &s->ports[i].port, s, i, NULL, uhci_attach);
     }
     s->frame_timer = qemu_new_timer(vm_clock, uhci_frame_timer, s);
     s->expire_time = qemu_get_clock(vm_clock) +
diff --git a/hw/usb.h b/hw/usb.h
index 00d2802206..0b32d77e6f 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -203,6 +203,7 @@ struct USBPort {
     USBDevice *dev;
     usb_attachfn attach;
     void *opaque;
+    USBDevice *pdev;
     int index; /* internal port index, may be used with the opaque */
     QTAILQ_ENTRY(USBPort) next;
 };
@@ -312,7 +313,7 @@ USBDevice *usb_create(USBBus *bus, const char *name);
 USBDevice *usb_create_simple(USBBus *bus, const char *name);
 USBDevice *usbdevice_create(const char *cmdline);
 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
-                       usb_attachfn attach);
+                       USBDevice *pdev, usb_attachfn attach);
 void usb_unregister_port(USBBus *bus, USBPort *port);
 int usb_device_attach(USBDevice *dev);
 int usb_device_detach(USBDevice *dev);