diff mbox

[26/30] usb storage: high speed support

Message ID 1292585206-24862-27-git-send-email-kraxel@redhat.com
State New
Headers show

Commit Message

Gerd Hoffmann Dec. 17, 2010, 11:26 a.m. UTC 
Add high speed support to the usb mass storage device.  With this patch
applied the linux kernel recognises the usb storage device as highspeed
capable device and suggests to connect it to a highspeed port instead of
the uhci.  Tested with both uhci and (not-yet submitted) ehci.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb-msd.c |   51 ++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 46 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/hw/usb-msd.c b/hw/usb-msd.c
index 74e657e..7b8189f 100644
--- a/hw/usb-msd.c
+++ b/hw/usb-msd.c
@@ -77,15 +77,19 @@  enum {
     STR_MANUFACTURER = 1,
     STR_PRODUCT,
     STR_SERIALNUMBER,
+    STR_CONFIG_FULL,
+    STR_CONFIG_HIGH,
 };
 
 static const USBDescStrings desc_strings = {
     [STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
     [STR_PRODUCT]      = "QEMU USB HARDDRIVE",
     [STR_SERIALNUMBER] = "1",
+    [STR_CONFIG_FULL]  = "Full speed config (usb 1.1)",
+    [STR_CONFIG_HIGH]  = "High speed config (usb 2.0)",
 };
 
-static const USBDescIface desc_iface0 = {
+static const USBDescIface desc_iface_full = {
     .bInterfaceNumber              = 0,
     .bNumEndpoints                 = 2,
     .bInterfaceClass               = USB_CLASS_MASS_STORAGE,
@@ -104,16 +108,51 @@  static const USBDescIface desc_iface0 = {
     }
 };
 
-static const USBDescDevice desc_device = {
-    .bcdUSB                        = 0x0100,
+static const USBDescDevice desc_device_full = {
+    .bcdUSB                        = 0x0200,
     .bMaxPacketSize0               = 8,
     .bNumConfigurations            = 1,
     .confs = (USBDescConfig[]) {
         {
             .bNumInterfaces        = 1,
             .bConfigurationValue   = 1,
+            .iConfiguration        = STR_CONFIG_FULL,
             .bmAttributes          = 0xc0,
-            .ifs = &desc_iface0,
+            .ifs = &desc_iface_full,
+        },
+    },
+};
+
+static const USBDescIface desc_iface_high = {
+    .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        = 512,
+        },{
+            .bEndpointAddress      = USB_DIR_OUT | 0x02,
+            .bmAttributes          = USB_ENDPOINT_XFER_BULK,
+            .wMaxPacketSize        = 512,
+        },
+    }
+};
+
+static const USBDescDevice desc_device_high = {
+    .bcdUSB                        = 0x0200,
+    .bMaxPacketSize0               = 64,
+    .bNumConfigurations            = 1,
+    .confs = (USBDescConfig[]) {
+        {
+            .bNumInterfaces        = 1,
+            .bConfigurationValue   = 1,
+            .iConfiguration        = STR_CONFIG_HIGH,
+            .bmAttributes          = 0xc0,
+            .ifs = &desc_iface_high,
         },
     },
 };
@@ -127,7 +166,8 @@  static const USBDesc desc = {
         .iProduct          = STR_PRODUCT,
         .iSerialNumber     = STR_SERIALNUMBER,
     },
-    .full = &desc_device,
+    .full = &desc_device_full,
+    .high = &desc_device_high,
     .str  = desc_strings,
 };
 
@@ -558,6 +598,7 @@  static struct USBDeviceInfo msd_info = {
     .usb_desc       = &desc,
     .init           = usb_msd_initfn,
     .handle_packet  = usb_generic_handle_packet,
+    .handle_attach  = usb_desc_attach,
     .handle_reset   = usb_msd_handle_reset,
     .handle_control = usb_msd_handle_control,
     .handle_data    = usb_msd_handle_data,