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From eccc9faa264d2228126d4fccc5a603b70b02cc9c Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Fri, 11 Jul 2014 14:20:54 +0200
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Subject: [PATCH 20/43] usb: Add usb_device_alloc/free_streams
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Message-id: <1405088470-24115-22-git-send-email-kraxel@redhat.com>
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Patchwork-id: 59833
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O-Subject: [RHEL-7.1 qemu-kvm PATCH 21/37] usb: Add usb_device_alloc/free_streams
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Bugzilla: 1111450
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RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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From: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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(cherry picked from commit 3b444eadf7726d976be4ac89e8e742cb7eb7a5ee)
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---
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 hw/usb/bus.c     | 18 ++++++++++++++++++
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 include/hw/usb.h | 12 ++++++++++++
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 2 files changed, 30 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 hw/usb/bus.c     | 18 ++++++++++++++++++
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 include/hw/usb.h | 12 ++++++++++++
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 2 files changed, 30 insertions(+)
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diff --git a/hw/usb/bus.c b/hw/usb/bus.c
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index f4eeb5e..12641fe 100644
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--- a/hw/usb/bus.c
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+++ b/hw/usb/bus.c
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@@ -206,6 +206,24 @@ void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep)
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     }
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 }
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+int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
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+                             int streams)
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+{
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+    USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
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+    if (klass->alloc_streams) {
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+        return klass->alloc_streams(dev, eps, nr_eps, streams);
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+    }
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+    return 0;
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+}
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+
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+void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps)
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+{
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+    USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
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+    if (klass->free_streams) {
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+        klass->free_streams(dev, eps, nr_eps);
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+    }
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+}
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+
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 static int usb_qdev_init(DeviceState *qdev)
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 {
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     USBDevice *dev = USB_DEVICE(qdev);
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diff --git a/include/hw/usb.h b/include/hw/usb.h
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index 116293e..000001b 100644
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--- a/include/hw/usb.h
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+++ b/include/hw/usb.h
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@@ -327,6 +327,14 @@ typedef struct USBDeviceClass {
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      */
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     void (*ep_stopped)(USBDevice *dev, USBEndpoint *ep);
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+    /*
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+     * Called by the hcd to alloc / free streams on a bulk endpoint.
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+     * Optional may be NULL.
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+     */
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+    int (*alloc_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps,
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+                         int streams);
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+    void (*free_streams)(USBDevice *dev, USBEndpoint **eps, int nr_eps);
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+
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     const char *product_desc;
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     const USBDesc *usb_desc;
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 } USBDeviceClass;
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@@ -564,6 +572,10 @@ void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep);
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 void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep);
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+int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
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+                             int streams);
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+void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps);
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+
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 const char *usb_device_get_product_desc(USBDevice *dev);
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 const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
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-- 
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1.8.3.1
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