diff options
| -rw-r--r-- | hw/usb.h | 1 | ||||
| -rw-r--r-- | hw/usb/core.c | 4 | ||||
| -rw-r--r-- | hw/usb/host-bsd.c | 1 | ||||
| -rw-r--r-- | hw/usb/host-linux.c | 1 |
4 files changed, 7 insertions, 0 deletions
@@ -197,6 +197,7 @@ struct USBEndpoint { enum USBDeviceFlags { USB_DEV_FLAG_FULL_PATH, + USB_DEV_FLAG_IS_HOST, }; /* definition of a USB device */ diff --git a/hw/usb/core.c b/hw/usb/core.c index 52b53108cd..8e360d3ec0 100644 --- a/hw/usb/core.c +++ b/hw/usb/core.c @@ -406,7 +406,11 @@ void usb_handle_packet(USBDevice *dev, USBPacket *p) if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline) { usb_process_one(p); if (p->status == USB_RET_ASYNC) { + /* hcd drivers cannot handle async for isoc */ assert(p->ep->type != USB_ENDPOINT_XFER_ISOC); + /* using async for interrupt packets breaks migration */ + assert(p->ep->type != USB_ENDPOINT_XFER_INT || + (dev->flags & USB_DEV_FLAG_IS_HOST)); usb_packet_set_state(p, USB_PACKET_ASYNC); QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); } else if (p->status == USB_RET_ADD_TO_QUEUE) { diff --git a/hw/usb/host-bsd.c b/hw/usb/host-bsd.c index 6473e8b747..dae0009378 100644 --- a/hw/usb/host-bsd.c +++ b/hw/usb/host-bsd.c @@ -292,6 +292,7 @@ static void usb_host_handle_destroy(USBDevice *opaque) static int usb_host_initfn(USBDevice *dev) { + dev->flags |= (1 << USB_DEV_FLAG_IS_HOST); return 0; } diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c index aa77b7704d..bdafb6bc87 100644 --- a/hw/usb/host-linux.c +++ b/hw/usb/host-linux.c @@ -1476,6 +1476,7 @@ static int usb_host_initfn(USBDevice *dev) { USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); + dev->flags |= (1 << USB_DEV_FLAG_IS_HOST); dev->auto_attach = 0; s->fd = -1; s->hub_fd = -1; |