From 3c2f94fdc5e776ee66bccc704884f3b1b090b4c6 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 28 Aug 2012 09:43:18 +0200 Subject: [PATCH] usb-core: Add a usb_ep_find_packet_by_id() helper function Signed-off-by: Hans de Goede Signed-off-by: Gerd Hoffmann (cherry picked from commit c13a9e61366cc3e28299d8faeb65e65c6e5964cf) Signed-off-by: Michael Roth --- hw/usb.h | 2 ++ hw/usb/core.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/hw/usb.h b/hw/usb.h index b8fceec..684e3f4 100644 --- a/hw/usb.h +++ b/hw/usb.h @@ -377,6 +377,8 @@ void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, uint16_t raw); int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep); void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled); +USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, + uint64_t id); void usb_attach(USBPort *port); void usb_detach(USBPort *port); diff --git a/hw/usb/core.c b/hw/usb/core.c index be6d936..fe431d0 100644 --- a/hw/usb/core.c +++ b/hw/usb/core.c @@ -726,3 +726,18 @@ void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled) struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); uep->pipeline = enabled; } + +USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, + uint64_t id) +{ + struct USBEndpoint *uep = usb_ep_get(dev, pid, ep); + USBPacket *p; + + while ((p = QTAILQ_FIRST(&uep->queue)) != NULL) { + if (p->id == id) { + return p; + } + } + + return NULL; +} -- 1.7.12.1