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f375e62ad9
qemu/0614-usb3-superspeed-endpoint-companion.patch
Cole Robinson f375e62ad9 Update to qemu 1.2.2 stable 
Fix libvirt + seccomp combo (bz #855162)
Fix scsi hotplug crash (bz #879657)
Fix QOM refcount crash (bz #881486)
2012-12-16 18:27:22 -05:00

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From a76e4c47f9be219527561c074716972226b6c1c1 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 28 Aug 2012 17:28:03 +0200
Subject: [PATCH] usb3: superspeed endpoint companion
Add support for building superspeed endpoint companion descriptors,
create them for superspeed usb devices.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/usb.h | 1 +
hw/usb/desc.c | 55 ++++++++++++++++++++++++++++++++++++++++---------------
hw/usb/desc.h | 26 +++++++++++++++++++++-----
3 files changed, 62 insertions(+), 20 deletions(-)
diff --git a/hw/usb.h b/hw/usb.h
index 684e3f4..78ffdf4 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -137,6 +137,7 @@
#define USB_DT_INTERFACE_ASSOC 0x0B
#define USB_DT_CS_INTERFACE 0x24
#define USB_DT_CS_ENDPOINT 0x25
+#define USB_DT_ENDPOINT_COMPANION 0x30
#define USB_ENDPOINT_XFER_CONTROL 0
#define USB_ENDPOINT_XFER_ISOC 1
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 3e8c6cb..8f5a8e5 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -76,7 +76,8 @@ int usb_desc_device_qualifier(const USBDescDevice *dev,
return bLength;
}
-int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
+int usb_desc_config(const USBDescConfig *conf, int flags,
+ uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
uint16_t wTotalLength = 0;
@@ -99,7 +100,7 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
/* handle grouped interfaces if any */
for (i = 0; i < conf->nif_groups; i++) {
- rc = usb_desc_iface_group(&(conf->if_groups[i]),
+ rc = usb_desc_iface_group(&(conf->if_groups[i]), flags,
dest + wTotalLength,
len - wTotalLength);
if (rc < 0) {
@@ -110,7 +111,8 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
/* handle normal (ungrouped / no IAD) interfaces if any */
for (i = 0; i < conf->nif; i++) {
- rc = usb_desc_iface(conf->ifs + i, dest + wTotalLength, len - wTotalLength);
+ rc = usb_desc_iface(conf->ifs + i, flags,
+ dest + wTotalLength, len - wTotalLength);
if (rc < 0) {
return rc;
}
@@ -122,8 +124,8 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
return wTotalLength;
}
-int usb_desc_iface_group(const USBDescIfaceAssoc *iad, uint8_t *dest,
- size_t len)
+int usb_desc_iface_group(const USBDescIfaceAssoc *iad, int flags,
+ uint8_t *dest, size_t len)
{
int pos = 0;
int i = 0;
@@ -147,7 +149,7 @@ int usb_desc_iface_group(const USBDescIfaceAssoc *iad, uint8_t *dest,
/* handle associated interfaces in this group */
for (i = 0; i < iad->nif; i++) {
- int rc = usb_desc_iface(&(iad->ifs[i]), dest + pos, len - pos);
+ int rc = usb_desc_iface(&(iad->ifs[i]), flags, dest + pos, len - pos);
if (rc < 0) {
return rc;
}
@@ -157,7 +159,8 @@ int usb_desc_iface_group(const USBDescIfaceAssoc *iad, uint8_t *dest,
return pos;
}
-int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len)
+int usb_desc_iface(const USBDescIface *iface, int flags,
+ uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
int i, rc, pos = 0;
@@ -188,7 +191,7 @@ int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len)
}
for (i = 0; i < iface->bNumEndpoints; i++) {
- rc = usb_desc_endpoint(iface->eps + i, dest + pos, len - pos);
+ rc = usb_desc_endpoint(iface->eps + i, flags, dest + pos, len - pos);
if (rc < 0) {
return rc;
}
@@ -198,13 +201,15 @@ int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len)
return pos;
}
-int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len)
+int usb_desc_endpoint(const USBDescEndpoint *ep, int flags,
+ uint8_t *dest, size_t len)
{
uint8_t bLength = ep->is_audio ? 0x09 : 0x07;
uint8_t extralen = ep->extra ? ep->extra[0] : 0;
+ uint8_t superlen = (flags & USB_DESC_FLAG_SUPER) ? 0x06 : 0;
USBDescriptor *d = (void *)dest;
- if (len < bLength + extralen) {
+ if (len < bLength + extralen + superlen) {
return -1;
}
@@ -224,7 +229,21 @@ int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len)
memcpy(dest + bLength, ep->extra, extralen);
}
- return bLength + extralen;
+ if (superlen) {
+ USBDescriptor *d = (void *)(dest + bLength + extralen);
+
+ d->bLength = 0x06;
+ d->bDescriptorType = USB_DT_ENDPOINT_COMPANION;
+
+ d->u.super_endpoint.bMaxBurst = ep->bMaxBurst;
+ d->u.super_endpoint.bmAttributes = ep->bmAttributes_super;
+ d->u.super_endpoint.wBytesPerInterval_lo =
+ usb_lo(ep->wBytesPerInterval);
+ d->u.super_endpoint.wBytesPerInterval_hi =
+ usb_hi(ep->wBytesPerInterval);
+ }
+
+ return bLength + extralen + superlen;
}
int usb_desc_other(const USBDescOther *desc, uint8_t *dest, size_t len)
@@ -509,7 +528,7 @@ int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len
uint8_t buf[256];
uint8_t type = value >> 8;
uint8_t index = value & 0xff;
- int ret = -1;
+ int flags, ret = -1;
if (dev->speed == USB_SPEED_HIGH) {
other_dev = usb_device_get_usb_desc(dev)->full;
@@ -517,6 +536,11 @@ int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len
other_dev = usb_device_get_usb_desc(dev)->high;
}
+ flags = 0;
+ if (dev->device->bcdUSB >= 0x0300) {
+ flags |= USB_DESC_FLAG_SUPER;
+ }
+
switch(type) {
case USB_DT_DEVICE:
ret = usb_desc_device(&desc->id, dev->device, buf, sizeof(buf));
@@ -524,7 +548,8 @@ int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len
break;
case USB_DT_CONFIG:
if (index < dev->device->bNumConfigurations) {
- ret = usb_desc_config(dev->device->confs + index, buf, sizeof(buf));
+ ret = usb_desc_config(dev->device->confs + index, flags,
+ buf, sizeof(buf));
}
trace_usb_desc_config(dev->addr, index, len, ret);
break;
@@ -532,7 +557,6 @@ int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len
ret = usb_desc_string(dev, index, buf, sizeof(buf));
trace_usb_desc_string(dev->addr, index, len, ret);
break;
-
case USB_DT_DEVICE_QUALIFIER:
if (other_dev != NULL) {
ret = usb_desc_device_qualifier(other_dev, buf, sizeof(buf));
@@ -541,7 +565,8 @@ int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len
break;
case USB_DT_OTHER_SPEED_CONFIG:
if (other_dev != NULL && index < other_dev->bNumConfigurations) {
- ret = usb_desc_config(other_dev->confs + index, buf, sizeof(buf));
+ ret = usb_desc_config(other_dev->confs + index, flags,
+ buf, sizeof(buf));
buf[0x01] = USB_DT_OTHER_SPEED_CONFIG;
}
trace_usb_desc_other_speed_config(dev->addr, index, len, ret);
diff --git a/hw/usb/desc.h b/hw/usb/desc.h
index d89fa41..4b5e88d 100644
--- a/hw/usb/desc.h
+++ b/hw/usb/desc.h
@@ -63,6 +63,12 @@ typedef struct USBDescriptor {
uint8_t bRefresh; /* only audio ep */
uint8_t bSynchAddress; /* only audio ep */
} endpoint;
+ struct {
+ uint8_t bMaxBurst;
+ uint8_t bmAttributes;
+ uint8_t wBytesPerInterval_lo;
+ uint8_t wBytesPerInterval_hi;
+ } super_endpoint;
} u;
} QEMU_PACKED USBDescriptor;
@@ -139,6 +145,11 @@ struct USBDescEndpoint {
uint8_t is_audio; /* has bRefresh + bSynchAddress */
uint8_t *extra;
+
+ /* superspeed endpoint companion */
+ uint8_t bMaxBurst;
+ uint8_t bmAttributes_super;
+ uint16_t wBytesPerInterval;
};
struct USBDescOther {
@@ -156,16 +167,21 @@ struct USBDesc {
const char* const *str;
};
+#define USB_DESC_FLAG_SUPER (1 << 1)
+
/* generate usb packages from structs */
int usb_desc_device(const USBDescID *id, const USBDescDevice *dev,
uint8_t *dest, size_t len);
int usb_desc_device_qualifier(const USBDescDevice *dev,
uint8_t *dest, size_t len);
-int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len);
-int usb_desc_iface_group(const USBDescIfaceAssoc *iad, uint8_t *dest,
- size_t len);
-int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len);
-int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len);
+int usb_desc_config(const USBDescConfig *conf, int flags,
+ uint8_t *dest, size_t len);
+int usb_desc_iface_group(const USBDescIfaceAssoc *iad, int flags,
+ uint8_t *dest, size_t len);
+int usb_desc_iface(const USBDescIface *iface, int flags,
+ uint8_t *dest, size_t len);
+int usb_desc_endpoint(const USBDescEndpoint *ep, int flags,
+ uint8_t *dest, size_t len);
int usb_desc_other(const USBDescOther *desc, uint8_t *dest, size_t len);
/* control message emulation helpers */
--
1.8.0.2
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