qemu/0128-usb-core-Add-a-usb_ep_find_packet_by_id-helper-funct.patch
2012-10-28 14:05:07 -04:00

55 lines
1.7 KiB
Diff

From 3c2f94fdc5e776ee66bccc704884f3b1b090b4c6 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
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 <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit c13a9e61366cc3e28299d8faeb65e65c6e5964cf)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
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