return bLength;
}
+int usb_desc_device_qualifier(const USBDescDevice *dev,
+ uint8_t *dest, size_t len)
+{
+ uint8_t bLength = 0x0a;
+
+ if (len < bLength) {
+ return -1;
+ }
+
+ dest[0x00] = bLength;
+ dest[0x01] = 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 */
+
+ return bLength;
+}
+
int usb_desc_config(const USBDescConfig *conf, uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
int usb_desc_get_descriptor(USBDevice *dev, int value, uint8_t *dest, size_t len)
{
const USBDesc *desc = dev->info->usb_desc;
+ const USBDescDevice *other_dev;
uint8_t buf[256];
uint8_t type = value >> 8;
uint8_t index = value & 0xff;
int ret = -1;
+ if (dev->speed == USB_SPEED_HIGH) {
+ other_dev = dev->info->usb_desc->full;
+ } else {
+ other_dev = dev->info->usb_desc->high;
+ }
+
switch(type) {
case USB_DT_DEVICE:
ret = usb_desc_device(&desc->id, dev->device, buf, sizeof(buf));
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));
+ }
+ trace_usb_desc_device_qualifier(dev->addr, len, ret);
+ 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));
+ buf[0x01] = USB_DT_OTHER_SPEED_CONFIG;
+ }
+ trace_usb_desc_other_speed_config(dev->addr, index, len, ret);
+ break;
+
default:
fprintf(stderr, "%s: %d unknown type %d (len %zd)\n", __FUNCTION__,
dev->addr, type, len);
/* 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(const USBDescIface *iface, uint8_t *dest, size_t len);
int usb_desc_endpoint(const USBDescEndpoint *ep, uint8_t *dest, size_t len);
# hw/usb-desc.c
disable usb_desc_device(int addr, int len, int ret) "dev %d query device, len %d, ret %d"
+disable usb_desc_device_qualifier(int addr, int len, int ret) "dev %d query device qualifier, len %d, ret %d"
disable usb_desc_config(int addr, int index, int len, int ret) "dev %d query config %d, len %d, ret %d"
+disable usb_desc_other_speed_config(int addr, int index, int len, int ret) "dev %d query config %d, len %d, ret %d"
disable usb_desc_string(int addr, int index, int len, int ret) "dev %d query string %d, len %d, ret %d"
disable usb_set_addr(int addr) "dev %d"
disable usb_set_config(int addr, int config, int ret) "dev %d, config %d, ret %d"