From 28606fe9b5e3554fa65d7fd7aef449da74ec1363 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann 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 --- 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 */