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usb: Add USB_RET_ADD_TO_QUEUE packet result code

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This can be used by usb-device code which wishes to process an entire endpoint
queue at once, to do this the usb-device code returns USB_RET_ADD_TO_QUEUE
from its handle_data class method and defines a flush_ep_queue class method
to call when the hcd is done queuing up packets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-10-24 18:14:07 +02:00 • committed by Gerd Hoffmann
parent d0ff81b871
commit 36dfe324fd
8 changed files with 51 additions and 11 deletions
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2
hw/usb/hcd-ohci.c
View file

@ -816,6 +816,7 @@ static int ohci_service_iso_td(OHCIState *ohci, struct ohci_ed *ed,
usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, len);
ret = usb_handle_packet(dev, &ohci->usb_packet);
if (ret == USB_RET_ASYNC) {
usb_device_flush_ep_queue(dev, ep);
return 1;
}
}
@ -1018,6 +1019,7 @@ static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed)
DPRINTF("ret=%d\n", ret);
#endif
if (ret == USB_RET_ASYNC) {
usb_device_flush_ep_queue(dev, ep);
ohci->async_td = addr;
return 1;
}