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From eccc9faa264d2228126d4fccc5a603b70b02cc9c Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Fri, 11 Jul 2014 14:20:54 +0200
Subject: [PATCH 20/43] usb: Add usb_device_alloc/free_streams

Message-id: <1405088470-24115-22-git-send-email-kraxel@redhat.com>
Patchwork-id: 59833
O-Subject: [RHEL-7.1 qemu-kvm PATCH 21/37] usb: Add usb_device_alloc/free_streams
Bugzilla: 1111450
RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>

From: Hans de Goede <hdegoede@redhat.com>

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 3b444eadf7726d976be4ac89e8e742cb7eb7a5ee)
---
 hw/usb/bus.c     | 18 ++++++++++++++++++
 include/hw/usb.h | 12 ++++++++++++
 2 files changed, 30 insertions(+)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/usb/bus.c     | 18 ++++++++++++++++++
 include/hw/usb.h | 12 ++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/hw/usb/bus.c b/hw/usb/bus.c
index f4eeb5e..12641fe 100644
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@@ -206,6 +206,24 @@ void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep)
     }
 }
 
+int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
+                             int streams)
+{
+    USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+    if (klass->alloc_streams) {
+        return klass->alloc_streams(dev, eps, nr_eps, streams);
+    }
+    return 0;
+}
+
+void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps)
+{
+    USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+    if (klass->free_streams) {
+        klass->free_streams(dev, eps, nr_eps);
+    }
+}
+
 static int usb_qdev_init(DeviceState *qdev)
 {
     USBDevice *dev = USB_DEVICE(qdev);
diff --git a/include/hw/usb.h b/include/hw/usb.h
index 116293e..000001b 100644
--- a/include/hw/usb.h
+++ b/include/hw/usb.h
@@ -327,6 +327,14 @@ typedef struct USBDeviceClass {
      */
     void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
 
+    /*
+     * Called by the hcd to alloc / free streams on a bulk endpoint.
+     * Optional may be NULL.
+     */
+    int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
+                         int streams);
+    void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
+
     const char *product_desc;
     const USBDesc *usb_desc;
 } USBDeviceClass;
@@ -564,6 +572,10 @@ void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
 
 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
 
+int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
+                             int streams);
+void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
+
 const char *usb_device_get_product_desc(USBDevice *dev);
 
 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
-- 
1.8.3.1