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Revert "usb-hub: report status changes only once" 

This reverts commit a309ee6e0a.

This isn't in line with the usb specification and adds regressions,
win7 fails to drive the usb hub for example.

Was added because it "solved" the issue of hubs interacting badly
with the xhci host controller.  Now with the root cause being fixed
in xhci (commit <FIXME>) we can revert this one.

Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit bdebd6ee81)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Gerd Hoffmann 2013-08-27 17:00:04 +02:00 committed by Michael Roth
parent c0a5eb81b4
commit c09a4634d9
1 changed files with 1 additions and 5 deletions
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6
hw/usb/dev-hub.c
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@ -33,7 +33,6 @@ typedef struct USBHubPort {
USBPort port;
uint16_t wPortStatus;
uint16_t wPortChange;
uint16_t wPortChange_reported;
} USBHubPort;
typedef struct USBHubState {
@ -468,11 +467,8 @@ static void usb_hub_handle_data(USBDevice *dev, USBPacket *p)
status = 0;
for(i = 0; i < NUM_PORTS; i++) {
port = &s->ports[i];
if (port->wPortChange &&
port->wPortChange_reported != port->wPortChange) {
if (port->wPortChange)
status |= (1 << (i + 1));
}
port->wPortChange_reported = port->wPortChange;
}
if (status != 0) {
for(i = 0; i < n; i++) {