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Diffstat (limited to 'hw/usb/desc.c')
-rw-r--r--hw/usb/desc.c126
1 files changed, 67 insertions, 59 deletions
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 9847a75b83..3c77368cb0 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -18,32 +18,33 @@ int usb_desc_device(const USBDescID *id, const USBDescDevice *dev,
uint8_t *dest, size_t len)
{
uint8_t bLength = 0x12;
+ USBDescriptor *d = (void *)dest;
if (len < bLength) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_DEVICE;
-
- dest[0x02] = usb_lo(dev->bcdUSB);
- dest[0x03] = usb_hi(dev->bcdUSB);
- dest[0x04] = dev->bDeviceClass;
- dest[0x05] = dev->bDeviceSubClass;
- dest[0x06] = dev->bDeviceProtocol;
- dest[0x07] = dev->bMaxPacketSize0;
-
- dest[0x08] = usb_lo(id->idVendor);
- dest[0x09] = usb_hi(id->idVendor);
- dest[0x0a] = usb_lo(id->idProduct);
- dest[0x0b] = usb_hi(id->idProduct);
- dest[0x0c] = usb_lo(id->bcdDevice);
- dest[0x0d] = usb_hi(id->bcdDevice);
- dest[0x0e] = id->iManufacturer;
- dest[0x0f] = id->iProduct;
- dest[0x10] = id->iSerialNumber;
-
- dest[0x11] = dev->bNumConfigurations;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_DEVICE;
+
+ d->u.device.bcdUSB_lo = usb_lo(dev->bcdUSB);
+ d->u.device.bcdUSB_hi = usb_hi(dev->bcdUSB);
+ d->u.device.bDeviceClass = dev->bDeviceClass;
+ d->u.device.bDeviceSubClass = dev->bDeviceSubClass;
+ d->u.device.bDeviceProtocol = dev->bDeviceProtocol;
+ d->u.device.bMaxPacketSize0 = dev->bMaxPacketSize0;
+
+ d->u.device.idVendor_lo = usb_lo(id->idVendor);
+ d->u.device.idVendor_hi = usb_hi(id->idVendor);
+ d->u.device.idProduct_lo = usb_lo(id->idProduct);
+ d->u.device.idProduct_hi = usb_hi(id->idProduct);
+ d->u.device.bcdDevice_lo = usb_lo(id->bcdDevice);
+ d->u.device.bcdDevice_hi = usb_hi(id->bcdDevice);
+ d->u.device.iManufacturer = id->iManufacturer;
+ d->u.device.iProduct = id->iProduct;
+ d->u.device.iSerialNumber = id->iSerialNumber;
+
+ d->u.device.bNumConfigurations = dev->bNumConfigurations;
return bLength;
}
@@ -52,22 +53,23 @@ int usb_desc_device_qualifier(const USBDescDevice *dev,
uint8_t *dest, size_t len)
{
uint8_t bLength = 0x0a;
+ USBDescriptor *d = (void *)dest;
if (len < bLength) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_DEVICE_QUALIFIER;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_DEVICE_QUALIFIER;
- dest[0x02] = usb_lo(dev->bcdUSB);
- dest[0x03] = usb_hi(dev->bcdUSB);
- dest[0x04] = dev->bDeviceClass;
- dest[0x05] = dev->bDeviceSubClass;
- dest[0x06] = dev->bDeviceProtocol;
- dest[0x07] = dev->bMaxPacketSize0;
- dest[0x08] = dev->bNumConfigurations;
- dest[0x09] = 0; /* reserved */
+ d->u.device_qualifier.bcdUSB_lo = usb_lo(dev->bcdUSB);
+ d->u.device_qualifier.bcdUSB_hi = usb_hi(dev->bcdUSB);
+ d->u.device_qualifier.bDeviceClass = dev->bDeviceClass;
+ d->u.device_qualifier.bDeviceSubClass = dev->bDeviceSubClass;
+ d->u.device_qualifier.bDeviceProtocol = dev->bDeviceProtocol;
+ d->u.device_qualifier.bMaxPacketSize0 = dev->bMaxPacketSize0;
+ d->u.device_qualifier.bNumConfigurations = dev->bNumConfigurations;
+ d->u.device_qualifier.bReserved = 0;
return bLength;
}
@@ -76,22 +78,24 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
uint16_t wTotalLength = 0;
+ USBDescriptor *d = (void *)dest;
int i, rc;
if (len < bLength) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_CONFIG;
- dest[0x04] = conf->bNumInterfaces;
- dest[0x05] = conf->bConfigurationValue;
- dest[0x06] = conf->iConfiguration;
- dest[0x07] = conf->bmAttributes;
- dest[0x08] = conf->bMaxPower;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_CONFIG;
+
+ d->u.config.bNumInterfaces = conf->bNumInterfaces;
+ d->u.config.bConfigurationValue = conf->bConfigurationValue;
+ d->u.config.iConfiguration = conf->iConfiguration;
+ d->u.config.bmAttributes = conf->bmAttributes;
+ d->u.config.bMaxPower = conf->bMaxPower;
wTotalLength += bLength;
- /* handle grouped interfaces if any*/
+ /* handle grouped interfaces if any */
for (i = 0; i < conf->nif_groups; i++) {
rc = usb_desc_iface_group(&(conf->if_groups[i]),
dest + wTotalLength,
@@ -111,8 +115,8 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
wTotalLength += rc;
}
- dest[0x02] = usb_lo(wTotalLength);
- dest[0x03] = usb_hi(wTotalLength);
+ d->u.config.wTotalLength_lo = usb_lo(wTotalLength);
+ d->u.config.wTotalLength_hi = usb_hi(wTotalLength);
return wTotalLength;
}
@@ -155,20 +159,22 @@ int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
int i, rc, pos = 0;
+ USBDescriptor *d = (void *)dest;
if (len < bLength) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_INTERFACE;
- dest[0x02] = iface->bInterfaceNumber;
- dest[0x03] = iface->bAlternateSetting;
- dest[0x04] = iface->bNumEndpoints;
- dest[0x05] = iface->bInterfaceClass;
- dest[0x06] = iface->bInterfaceSubClass;
- dest[0x07] = iface->bInterfaceProtocol;
- dest[0x08] = iface->iInterface;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_INTERFACE;
+
+ d->u.interface.bInterfaceNumber = iface->bInterfaceNumber;
+ d->u.interface.bAlternateSetting = iface->bAlternateSetting;
+ d->u.interface.bNumEndpoints = iface->bNumEndpoints;
+ d->u.interface.bInterfaceClass = iface->bInterfaceClass;
+ d->u.interface.bInterfaceSubClass = iface->bInterfaceSubClass;
+ d->u.interface.bInterfaceProtocol = iface->bInterfaceProtocol;
+ d->u.interface.iInterface = iface->iInterface;
pos += bLength;
for (i = 0; i < iface->ndesc; i++) {
@@ -194,21 +200,23 @@ int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len)
{
uint8_t bLength = ep->is_audio ? 0x09 : 0x07;
uint8_t extralen = ep->extra ? ep->extra[0] : 0;
+ USBDescriptor *d = (void *)dest;
if (len < bLength + extralen) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_ENDPOINT;
- dest[0x02] = ep->bEndpointAddress;
- dest[0x03] = ep->bmAttributes;
- dest[0x04] = usb_lo(ep->wMaxPacketSize);
- dest[0x05] = usb_hi(ep->wMaxPacketSize);
- dest[0x06] = ep->bInterval;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_ENDPOINT;
+
+ d->u.endpoint.bEndpointAddress = ep->bEndpointAddress;
+ d->u.endpoint.bmAttributes = ep->bmAttributes;
+ d->u.endpoint.wMaxPacketSize_lo = usb_lo(ep->wMaxPacketSize);
+ d->u.endpoint.wMaxPacketSize_hi = usb_hi(ep->wMaxPacketSize);
+ d->u.endpoint.bInterval = ep->bInterval;
if (ep->is_audio) {
- dest[0x07] = ep->bRefresh;
- dest[0x08] = ep->bSynchAddress;
+ d->u.endpoint.bRefresh = ep->bRefresh;
+ d->u.endpoint.bSynchAddress = ep->bSynchAddress;
}
if (ep->extra) {
memcpy(dest + bLength, ep->extra, extralen);
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-07 02:50:53 +0000