From 9a6fd10bf6a85c4df63a7ba1cf7d6203220d722e Mon Sep 17 00:00:00 2001

From: Gerd Hoffmann <kraxel@redhat.com>

Date: Tue, 28 Aug 2012 17:29:15 +0200

Subject: [PATCH] usb-storage: usb3 support

Add usb3 descriptors to usb-storage, so it shows up as superspeed

device when connected to xhci.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

---

 hw/usb/dev-storage.c | 46 +++++++++++++++++++++++++++++++++++++++++++---

 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c

index ff48d91..e732191 100644

--- a/hw/usb/dev-storage.c

+++ b/hw/usb/dev-storage.c

@@ -78,6 +78,7 @@ enum {

     STR_SERIALNUMBER,

     STR_CONFIG_FULL,

     STR_CONFIG_HIGH,

+    STR_CONFIG_SUPER,

 };

 static const USBDescStrings desc_strings = {

@@ -86,6 +87,7 @@ static const USBDescStrings desc_strings = {

     [STR_SERIALNUMBER] = "1",

     [STR_CONFIG_FULL]  = "Full speed config (usb 1.1)",

     [STR_CONFIG_HIGH]  = "High speed config (usb 2.0)",

+    [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)",

 };

 static const USBDescIface desc_iface_full = {

@@ -158,6 +160,43 @@ static const USBDescDevice desc_device_high = {

     },

 };

+static const USBDescIface desc_iface_super = {

+    .bInterfaceNumber              = 0,

+    .bNumEndpoints                 = 2,

+    .bInterfaceClass               = USB_CLASS_MASS_STORAGE,

+    .bInterfaceSubClass            = 0x06, /* SCSI */

+    .bInterfaceProtocol            = 0x50, /* Bulk */

+    .eps = (USBDescEndpoint[]) {

+        {

+            .bEndpointAddress      = USB_DIR_IN | 0x01,

+            .bmAttributes          = USB_ENDPOINT_XFER_BULK,

+            .wMaxPacketSize        = 1024,

+            .bMaxBurst             = 15,

+        },{

+            .bEndpointAddress      = USB_DIR_OUT | 0x02,

+            .bmAttributes          = USB_ENDPOINT_XFER_BULK,

+            .wMaxPacketSize        = 1024,

+            .bMaxBurst             = 15,

+        },

+    }

+};

+

+static const USBDescDevice desc_device_super = {

+    .bcdUSB                        = 0x0300,

+    .bMaxPacketSize0               = 9,

+    .bNumConfigurations            = 1,

+    .confs = (USBDescConfig[]) {

+        {

+            .bNumInterfaces        = 1,

+            .bConfigurationValue   = 1,

+            .iConfiguration        = STR_CONFIG_SUPER,

+            .bmAttributes          = 0xc0,

+            .nif = 1,

+            .ifs = &desc_iface_super,

+        },

+    },

+};

+

 static const USBDesc desc = {

     .id = {

         .idVendor          = 0x46f4, /* CRC16() of "QEMU" */

@@ -167,9 +206,10 @@ static const USBDesc desc = {

         .iProduct          = STR_PRODUCT,

         .iSerialNumber     = STR_SERIALNUMBER,

     },

-    .full = &desc_device_full,

-    .high = &desc_device_high,

-    .str  = desc_strings,

+    .full  = &desc_device_full,

+    .high  = &desc_device_high,

+    .super = &desc_device_super,

+    .str   = desc_strings,

 };

 static void usb_msd_copy_data(MSDState *s, USBPacket *p)

-- 

1.7.12.1