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;
uint16_t wTotalLength = 0;
- int i, rc, count;
+ int i, rc;
if (len < bLength) {
return -1;
dest[0x08] = conf->bMaxPower;
wTotalLength += bLength;
- count = conf->nif ? conf->nif : conf->bNumInterfaces;
- for (i = 0; i < count; i++) {
+ /* handle grouped interfaces if any*/
+ for (i = 0; i < conf->nif_groups; i++) {
+ rc = usb_desc_iface_group(&(conf->if_groups[i]),
+ dest + wTotalLength,
+ len - wTotalLength);
+ if (rc < 0) {
+ return rc;
+ }
+ wTotalLength += rc;
+ }
+
+ /* 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);
if (rc < 0) {
return rc;
return wTotalLength;
}
+int usb_desc_iface_group(const USBDescIfaceAssoc *iad, uint8_t *dest,
+ size_t len)
+{
+ int pos = 0;
+ int i = 0;
+
+ /* handle interface association descriptor */
+ uint8_t bLength = 0x08;
+
+ if (len < bLength) {
+ return -1;
+ }
+
+ dest[0x00] = bLength;
+ dest[0x01] = USB_DT_INTERFACE_ASSOC;
+ dest[0x02] = iad->bFirstInterface;
+ dest[0x03] = iad->bInterfaceCount;
+ dest[0x04] = iad->bFunctionClass;
+ dest[0x05] = iad->bFunctionSubClass;
+ dest[0x06] = iad->bFunctionProtocol;
+ dest[0x07] = iad->iFunction;
+ pos += bLength;
+
+ /* 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);
+ if (rc < 0) {
+ return rc;
+ }
+ pos += rc;
+ }
+
+ return pos;
+}
+
int usb_desc_iface(const USBDescIface *iface, uint8_t *dest, size_t len)
{
uint8_t bLength = 0x09;
/* ------------------------------------------------------------------ */
+static const USBDescIface *usb_desc_find_interface(USBDevice *dev,
+ int nif, int alt)
+{
+ const USBDescIface *iface;
+ int g, i;
+
+ if (!dev->config) {
+ return NULL;
+ }
+ for (g = 0; g < dev->config->nif_groups; g++) {
+ for (i = 0; i < dev->config->if_groups[g].nif; i++) {
+ iface = &dev->config->if_groups[g].ifs[i];
+ if (iface->bInterfaceNumber == nif &&
+ iface->bAlternateSetting == alt) {
+ return iface;
+ }
+ }
+ }
+ for (i = 0; i < dev->config->nif; i++) {
+ iface = &dev->config->ifs[i];
+ if (iface->bInterfaceNumber == nif &&
+ iface->bAlternateSetting == alt) {
+ return iface;
+ }
+ }
+ return NULL;
+}
+
+static int usb_desc_set_interface(USBDevice *dev, int index, int value)
+{
+ const USBDescIface *iface;
+ int old;
+
+ iface = usb_desc_find_interface(dev, index, value);
+ if (iface == NULL) {
+ return -1;
+ }
+
+ old = dev->altsetting[index];
+ dev->altsetting[index] = value;
+ dev->ifaces[index] = iface;
+
+ if (dev->info->set_interface && old != value) {
+ dev->info->set_interface(dev, index, old, value);
+ }
+ return 0;
+}
+
+static int usb_desc_set_config(USBDevice *dev, int value)
+{
+ int i;
+
+ if (value == 0) {
+ dev->configuration = 0;
+ dev->ninterfaces = 0;
+ dev->config = NULL;
+ } else {
+ for (i = 0; i < dev->device->bNumConfigurations; i++) {
+ if (dev->device->confs[i].bConfigurationValue == value) {
+ dev->configuration = value;
+ dev->ninterfaces = dev->device->confs[i].bNumInterfaces;
+ dev->config = dev->device->confs + i;
+ assert(dev->ninterfaces <= USB_MAX_INTERFACES);
+ }
+ }
+ if (i < dev->device->bNumConfigurations) {
+ return -1;
+ }
+ }
+
+ for (i = 0; i < dev->ninterfaces; i++) {
+ usb_desc_set_interface(dev, i, 0);
+ }
+ for (; i < USB_MAX_INTERFACES; i++) {
+ dev->altsetting[i] = 0;
+ dev->ifaces[i] = NULL;
+ }
+
+ return 0;
+}
+
+static void usb_desc_setdefaults(USBDevice *dev)
+{
+ const USBDesc *desc = dev->info->usb_desc;
+
+ assert(desc != NULL);
+ switch (dev->speed) {
+ case USB_SPEED_LOW:
+ case USB_SPEED_FULL:
+ dev->device = desc->full;
+ break;
+ case USB_SPEED_HIGH:
+ dev->device = desc->high;
+ break;
+ }
+ usb_desc_set_config(dev, 0);
+}
+
void usb_desc_init(USBDevice *dev)
{
const USBDesc *desc = dev->info->usb_desc;
assert(desc != NULL);
- dev->speed = USB_SPEED_FULL;
- dev->device = desc->full;
- dev->config = dev->device->confs;
+ dev->speed = USB_SPEED_FULL;
+ dev->speedmask = 0;
+ if (desc->full) {
+ dev->speedmask |= USB_SPEED_MASK_FULL;
+ }
+ if (desc->high) {
+ dev->speedmask |= USB_SPEED_MASK_HIGH;
+ }
+ usb_desc_setdefaults(dev);
+}
+
+void usb_desc_attach(USBDevice *dev)
+{
+ const USBDesc *desc = dev->info->usb_desc;
+
+ assert(desc != NULL);
+ if (desc->high && (dev->port->speedmask & USB_SPEED_MASK_HIGH)) {
+ dev->speed = USB_SPEED_HIGH;
+ } else if (desc->full && (dev->port->speedmask & USB_SPEED_MASK_FULL)) {
+ dev->speed = USB_SPEED_FULL;
+ } else {
+ fprintf(stderr, "usb: port/device speed mismatch for \"%s\"\n",
+ dev->info->product_desc);
+ return;
+ }
+ usb_desc_setdefaults(dev);
}
void usb_desc_set_string(USBDevice *dev, uint8_t index, const char *str)
}
}
if (s == NULL) {
- s = qemu_mallocz(sizeof(*s));
+ s = g_malloc0(sizeof(*s));
s->index = index;
QLIST_INSERT_HEAD(&dev->strings, s, next);
}
- qemu_free(s->str);
- s->str = qemu_strdup(str);
+ g_free(s->str);
+ s->str = g_strdup(str);
}
const char *usb_desc_get_string(USBDevice *dev, uint8_t index)
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;
+
+ case USB_DT_DEBUG:
+ /* ignore silently */
+ break;
+
default:
fprintf(stderr, "%s: %d unknown type %d (len %zd)\n", __FUNCTION__,
dev->addr, type, len);
return ret;
}
-int usb_desc_handle_control(USBDevice *dev, int request, int value,
- int index, int length, uint8_t *data)
+int usb_desc_handle_control(USBDevice *dev, USBPacket *p,
+ int request, int value, int index, int length, uint8_t *data)
{
const USBDesc *desc = dev->info->usb_desc;
- int i, ret = -1;
+ int ret = -1;
assert(desc != NULL);
switch(request) {
ret = 1;
break;
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
- for (i = 0; i < dev->device->bNumConfigurations; i++) {
- if (dev->device->confs[i].bConfigurationValue == value) {
- dev->config = dev->device->confs + i;
- ret = 0;
- }
- }
+ ret = usb_desc_set_config(dev, value);
trace_usb_set_config(dev->addr, value, ret);
break;
}
trace_usb_set_device_feature(dev->addr, value, ret);
break;
+
+ case InterfaceRequest | USB_REQ_GET_INTERFACE:
+ if (index < 0 || index >= dev->ninterfaces) {
+ break;
+ }
+ data[0] = dev->altsetting[index];
+ ret = 1;
+ break;
+ case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
+ ret = usb_desc_set_interface(dev, index, value);
+ trace_usb_set_interface(dev->addr, index, value, ret);
+ break;
+
}
return ret;
}
projects / qemu.git / blobdiff