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-rw-r--r--qemu/hw/usb/desc.c804
1 files changed, 0 insertions, 804 deletions
diff --git a/qemu/hw/usb/desc.c b/qemu/hw/usb/desc.c
deleted file mode 100644
index adb026e43..000000000
--- a/qemu/hw/usb/desc.c
+++ /dev/null
@@ -1,804 +0,0 @@
-#include "qemu/osdep.h"
-
-#include "hw/usb.h"
-#include "hw/usb/desc.h"
-#include "trace.h"
-
-/* ------------------------------------------------------------------ */
-
-int usb_desc_device(const USBDescID *id, const USBDescDevice *dev,
- bool msos, uint8_t *dest, size_t len)
-{
- uint8_t bLength = 0x12;
- USBDescriptor *d = (void *)dest;
-
- if (len < bLength) {
- return -1;
- }
-
- d->bLength = bLength;
- d->bDescriptorType = USB_DT_DEVICE;
-
- if (msos && dev->bcdUSB < 0x0200) {
- /*
- * Version 2.0+ required for microsoft os descriptors to work.
- * Done this way so msos-desc compat property will handle both
- * the version and the new descriptors being present.
- */
- d->u.device.bcdUSB_lo = usb_lo(0x0200);
- d->u.device.bcdUSB_hi = usb_hi(0x0200);
- } else {
- 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;
-}
-
-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;
- }
-
- d->bLength = bLength;
- d->bDescriptorType = USB_DT_DEVICE_QUALIFIER;
-
- 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;
-}
-
-int usb_desc_config(const USBDescConfig *conf, int flags,
- 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;
- }
-
- 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 */
- for (i = 0; i < conf->nif_groups; i++) {
- rc = usb_desc_iface_group(&(conf->if_groups[i]), flags,
- 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, flags,
- dest + wTotalLength, len - wTotalLength);
- if (rc < 0) {
- return rc;
- }
- wTotalLength += rc;
- }
-
- d->u.config.wTotalLength_lo = usb_lo(wTotalLength);
- d->u.config.wTotalLength_hi = usb_hi(wTotalLength);
- return wTotalLength;
-}
-
-int usb_desc_iface_group(const USBDescIfaceAssoc *iad, int flags,
- 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]), flags, dest + pos, len - pos);
- if (rc < 0) {
- return rc;
- }
- pos += rc;
- }
-
- return pos;
-}
-
-int usb_desc_iface(const USBDescIface *iface, int flags,
- uint8_t *dest, size_t len)
-{
- uint8_t bLength = 0x09;
- int i, rc, pos = 0;
- USBDescriptor *d = (void *)dest;
-
- if (len < bLength) {
- return -1;
- }
-
- 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++) {
- rc = usb_desc_other(iface->descs + i, dest + pos, len - pos);
- if (rc < 0) {
- return rc;
- }
- pos += rc;
- }
-
- for (i = 0; i < iface->bNumEndpoints; i++) {
- rc = usb_desc_endpoint(iface->eps + i, flags, dest + pos, len - pos);
- if (rc < 0) {
- return rc;
- }
- pos += rc;
- }
-
- return pos;
-}
-
-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 + superlen) {
- return -1;
- }
-
- 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) {
- d->u.endpoint.bRefresh = ep->bRefresh;
- d->u.endpoint.bSynchAddress = ep->bSynchAddress;
- }
-
- if (superlen) {
- USBDescriptor *d = (void *)(dest + bLength);
-
- 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);
- }
-
- if (ep->extra) {
- memcpy(dest + bLength + superlen, ep->extra, extralen);
- }
-
- return bLength + extralen + superlen;
-}
-
-int usb_desc_other(const USBDescOther *desc, uint8_t *dest, size_t len)
-{
- int bLength = desc->length ? desc->length : desc->data[0];
-
- if (len < bLength) {
- return -1;
- }
-
- memcpy(dest, desc->data, bLength);
- return bLength;
-}
-
-static int usb_desc_cap_usb2_ext(const USBDesc *desc, uint8_t *dest, size_t len)
-{
- uint8_t bLength = 0x07;
- USBDescriptor *d = (void *)dest;
-
- if (len < bLength) {
- return -1;
- }
-
- d->bLength = bLength;
- d->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
- d->u.cap.bDevCapabilityType = USB_DEV_CAP_USB2_EXT;
-
- d->u.cap.u.usb2_ext.bmAttributes_1 = (1 << 1); /* LPM */
- d->u.cap.u.usb2_ext.bmAttributes_2 = 0;
- d->u.cap.u.usb2_ext.bmAttributes_3 = 0;
- d->u.cap.u.usb2_ext.bmAttributes_4 = 0;
-
- return bLength;
-}
-
-static int usb_desc_cap_super(const USBDesc *desc, uint8_t *dest, size_t len)
-{
- uint8_t bLength = 0x0a;
- USBDescriptor *d = (void *)dest;
-
- if (len < bLength) {
- return -1;
- }
-
- d->bLength = bLength;
- d->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
- d->u.cap.bDevCapabilityType = USB_DEV_CAP_SUPERSPEED;
-
- d->u.cap.u.super.bmAttributes = 0;
- d->u.cap.u.super.wSpeedsSupported_lo = 0;
- d->u.cap.u.super.wSpeedsSupported_hi = 0;
- d->u.cap.u.super.bFunctionalitySupport = 0;
- d->u.cap.u.super.bU1DevExitLat = 0x0a;
- d->u.cap.u.super.wU2DevExitLat_lo = 0x20;
- d->u.cap.u.super.wU2DevExitLat_hi = 0;
-
- if (desc->full) {
- d->u.cap.u.super.wSpeedsSupported_lo |= (1 << 1);
- d->u.cap.u.super.bFunctionalitySupport = 1;
- }
- if (desc->high) {
- d->u.cap.u.super.wSpeedsSupported_lo |= (1 << 2);
- if (!d->u.cap.u.super.bFunctionalitySupport) {
- d->u.cap.u.super.bFunctionalitySupport = 2;
- }
- }
- if (desc->super) {
- d->u.cap.u.super.wSpeedsSupported_lo |= (1 << 3);
- if (!d->u.cap.u.super.bFunctionalitySupport) {
- d->u.cap.u.super.bFunctionalitySupport = 3;
- }
- }
-
- return bLength;
-}
-
-static int usb_desc_bos(const USBDesc *desc, uint8_t *dest, size_t len)
-{
- uint8_t bLength = 0x05;
- uint16_t wTotalLength = 0;
- uint8_t bNumDeviceCaps = 0;
- USBDescriptor *d = (void *)dest;
- int rc;
-
- if (len < bLength) {
- return -1;
- }
-
- d->bLength = bLength;
- d->bDescriptorType = USB_DT_BOS;
-
- wTotalLength += bLength;
-
- if (desc->high != NULL) {
- rc = usb_desc_cap_usb2_ext(desc, dest + wTotalLength,
- len - wTotalLength);
- if (rc < 0) {
- return rc;
- }
- wTotalLength += rc;
- bNumDeviceCaps++;
- }
-
- if (desc->super != NULL) {
- rc = usb_desc_cap_super(desc, dest + wTotalLength,
- len - wTotalLength);
- if (rc < 0) {
- return rc;
- }
- wTotalLength += rc;
- bNumDeviceCaps++;
- }
-
- d->u.bos.wTotalLength_lo = usb_lo(wTotalLength);
- d->u.bos.wTotalLength_hi = usb_hi(wTotalLength);
- d->u.bos.bNumDeviceCaps = bNumDeviceCaps;
- return wTotalLength;
-}
-
-/* ------------------------------------------------------------------ */
-
-static void usb_desc_ep_init(USBDevice *dev)
-{
- const USBDescIface *iface;
- int i, e, pid, ep;
-
- usb_ep_init(dev);
- for (i = 0; i < dev->ninterfaces; i++) {
- iface = dev->ifaces[i];
- if (iface == NULL) {
- continue;
- }
- for (e = 0; e < iface->bNumEndpoints; e++) {
- pid = (iface->eps[e].bEndpointAddress & USB_DIR_IN) ?
- USB_TOKEN_IN : USB_TOKEN_OUT;
- ep = iface->eps[e].bEndpointAddress & 0x0f;
- usb_ep_set_type(dev, pid, ep, iface->eps[e].bmAttributes & 0x03);
- usb_ep_set_ifnum(dev, pid, ep, iface->bInterfaceNumber);
- usb_ep_set_max_packet_size(dev, pid, ep,
- iface->eps[e].wMaxPacketSize);
- usb_ep_set_max_streams(dev, pid, ep,
- iface->eps[e].bmAttributes_super);
- }
- }
-}
-
-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;
- usb_desc_ep_init(dev);
-
- if (old != value) {
- usb_device_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 = usb_device_get_usb_desc(dev);
-
- 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;
- case USB_SPEED_SUPER:
- dev->device = desc->super;
- break;
- }
- usb_desc_set_config(dev, 0);
-}
-
-void usb_desc_init(USBDevice *dev)
-{
- const USBDesc *desc = usb_device_get_usb_desc(dev);
-
- assert(desc != NULL);
- 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;
- }
- if (desc->super) {
- dev->speedmask |= USB_SPEED_MASK_SUPER;
- }
- if (desc->msos && (dev->flags & (1 << USB_DEV_FLAG_MSOS_DESC_ENABLE))) {
- dev->flags |= (1 << USB_DEV_FLAG_MSOS_DESC_IN_USE);
- usb_desc_set_string(dev, 0xee, "MSFT100Q");
- }
- usb_desc_setdefaults(dev);
-}
-
-void usb_desc_attach(USBDevice *dev)
-{
- usb_desc_setdefaults(dev);
-}
-
-void usb_desc_set_string(USBDevice *dev, uint8_t index, const char *str)
-{
- USBDescString *s;
-
- QLIST_FOREACH(s, &dev->strings, next) {
- if (s->index == index) {
- break;
- }
- }
- if (s == NULL) {
- s = g_malloc0(sizeof(*s));
- s->index = index;
- QLIST_INSERT_HEAD(&dev->strings, s, next);
- }
- g_free(s->str);
- s->str = g_strdup(str);
-}
-
-/*
- * This function creates a serial number for a usb device.
- * The serial number should:
- * (a) Be unique within the virtual machine.
- * (b) Be constant, so you don't get a new one each
- * time the guest is started.
- * So we are using the physical location to generate a serial number
- * from it. It has three pieces: First a fixed, device-specific
- * prefix. Second the device path of the host controller (which is
- * the pci address in most cases). Third the physical port path.
- * Results in serial numbers like this: "314159-0000:00:1d.7-3".
- */
-void usb_desc_create_serial(USBDevice *dev)
-{
- DeviceState *hcd = dev->qdev.parent_bus->parent;
- const USBDesc *desc = usb_device_get_usb_desc(dev);
- int index = desc->id.iSerialNumber;
- char serial[64];
- char *path;
- int dst;
-
- if (dev->serial) {
- /* 'serial' usb bus property has priority if present */
- usb_desc_set_string(dev, index, dev->serial);
- return;
- }
-
- assert(index != 0 && desc->str[index] != NULL);
- dst = snprintf(serial, sizeof(serial), "%s", desc->str[index]);
- path = qdev_get_dev_path(hcd);
- if (path) {
- dst += snprintf(serial+dst, sizeof(serial)-dst, "-%s", path);
- }
- dst += snprintf(serial+dst, sizeof(serial)-dst, "-%s", dev->port->path);
- usb_desc_set_string(dev, index, serial);
-}
-
-const char *usb_desc_get_string(USBDevice *dev, uint8_t index)
-{
- USBDescString *s;
-
- QLIST_FOREACH(s, &dev->strings, next) {
- if (s->index == index) {
- return s->str;
- }
- }
- return NULL;
-}
-
-int usb_desc_string(USBDevice *dev, int index, uint8_t *dest, size_t len)
-{
- uint8_t bLength, pos, i;
- const char *str;
-
- if (len < 4) {
- return -1;
- }
-
- if (index == 0) {
- /* language ids */
- dest[0] = 4;
- dest[1] = USB_DT_STRING;
- dest[2] = 0x09;
- dest[3] = 0x04;
- return 4;
- }
-
- str = usb_desc_get_string(dev, index);
- if (str == NULL) {
- str = usb_device_get_usb_desc(dev)->str[index];
- if (str == NULL) {
- return 0;
- }
- }
-
- bLength = strlen(str) * 2 + 2;
- dest[0] = bLength;
- dest[1] = USB_DT_STRING;
- i = 0; pos = 2;
- while (pos+1 < bLength && pos+1 < len) {
- dest[pos++] = str[i++];
- dest[pos++] = 0;
- }
- return pos;
-}
-
-int usb_desc_get_descriptor(USBDevice *dev, USBPacket *p,
- int value, uint8_t *dest, size_t len)
-{
- bool msos = (dev->flags & (1 << USB_DEV_FLAG_MSOS_DESC_IN_USE));
- const USBDesc *desc = usb_device_get_usb_desc(dev);
- const USBDescDevice *other_dev;
- uint8_t buf[256];
- uint8_t type = value >> 8;
- uint8_t index = value & 0xff;
- int flags, ret = -1;
-
- if (dev->speed == USB_SPEED_HIGH) {
- other_dev = usb_device_get_usb_desc(dev)->full;
- } else {
- 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, msos, buf, sizeof(buf));
- trace_usb_desc_device(dev->addr, len, ret);
- break;
- case USB_DT_CONFIG:
- if (index < dev->device->bNumConfigurations) {
- ret = usb_desc_config(dev->device->confs + index, flags,
- buf, sizeof(buf));
- }
- trace_usb_desc_config(dev->addr, index, len, ret);
- break;
- case USB_DT_STRING:
- 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, flags,
- 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_BOS:
- ret = usb_desc_bos(desc, buf, sizeof(buf));
- trace_usb_desc_bos(dev->addr, 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);
- break;
- }
-
- if (ret > 0) {
- if (ret > len) {
- ret = len;
- }
- memcpy(dest, buf, ret);
- p->actual_length = ret;
- ret = 0;
- }
- return ret;
-}
-
-int usb_desc_handle_control(USBDevice *dev, USBPacket *p,
- int request, int value, int index, int length, uint8_t *data)
-{
- bool msos = (dev->flags & (1 << USB_DEV_FLAG_MSOS_DESC_IN_USE));
- const USBDesc *desc = usb_device_get_usb_desc(dev);
- int ret = -1;
-
- assert(desc != NULL);
- switch(request) {
- case DeviceOutRequest | USB_REQ_SET_ADDRESS:
- dev->addr = value;
- trace_usb_set_addr(dev->addr);
- ret = 0;
- break;
-
- case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
- ret = usb_desc_get_descriptor(dev, p, value, data, length);
- break;
-
- case DeviceRequest | USB_REQ_GET_CONFIGURATION:
- /*
- * 9.4.2: 0 should be returned if the device is unconfigured, otherwise
- * the non zero value of bConfigurationValue.
- */
- data[0] = dev->config ? dev->config->bConfigurationValue : 0;
- p->actual_length = 1;
- ret = 0;
- break;
- case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
- ret = usb_desc_set_config(dev, value);
- trace_usb_set_config(dev->addr, value, ret);
- break;
-
- case DeviceRequest | USB_REQ_GET_STATUS: {
- const USBDescConfig *config = dev->config ?
- dev->config : &dev->device->confs[0];
-
- data[0] = 0;
- /*
- * Default state: Device behavior when this request is received while
- * the device is in the Default state is not specified.
- * We return the same value that a configured device would return if
- * it used the first configuration.
- */
- if (config->bmAttributes & USB_CFG_ATT_SELFPOWER) {
- data[0] |= 1 << USB_DEVICE_SELF_POWERED;
- }
- if (dev->remote_wakeup) {
- data[0] |= 1 << USB_DEVICE_REMOTE_WAKEUP;
- }
- data[1] = 0x00;
- p->actual_length = 2;
- ret = 0;
- break;
- }
- case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
- if (value == USB_DEVICE_REMOTE_WAKEUP) {
- dev->remote_wakeup = 0;
- ret = 0;
- }
- trace_usb_clear_device_feature(dev->addr, value, ret);
- break;
- case DeviceOutRequest | USB_REQ_SET_FEATURE:
- if (value == USB_DEVICE_REMOTE_WAKEUP) {
- dev->remote_wakeup = 1;
- ret = 0;
- }
- 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];
- p->actual_length = 1;
- ret = 0;
- 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;
-
- case VendorDeviceRequest | 'Q':
- if (msos) {
- ret = usb_desc_msos(desc, p, index, data, length);
- trace_usb_desc_msos(dev->addr, index, length, ret);
- }
- break;
- case VendorInterfaceRequest | 'Q':
- if (msos) {
- ret = usb_desc_msos(desc, p, index, data, length);
- trace_usb_desc_msos(dev->addr, index, length, ret);
- }
- break;
-
- }
- return ret;
-}