--- /dev/null
+#include "hw/hw.h"
+#include "hw/usb.h"
+#include "hw/qdev.h"
+#include "qemu/error-report.h"
+#include "sysemu/sysemu.h"
+#include "monitor/monitor.h"
+#include "trace.h"
+
+static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
+
+static char *usb_get_dev_path(DeviceState *dev);
+static char *usb_get_fw_dev_path(DeviceState *qdev);
+static void usb_qdev_unrealize(DeviceState *qdev, Error **errp);
+
+static Property usb_props[] = {
+ DEFINE_PROP_STRING("port", USBDevice, port_path),
+ DEFINE_PROP_STRING("serial", USBDevice, serial),
+ DEFINE_PROP_BIT("full-path", USBDevice, flags,
+ USB_DEV_FLAG_FULL_PATH, true),
+ DEFINE_PROP_BIT("msos-desc", USBDevice, flags,
+ USB_DEV_FLAG_MSOS_DESC_ENABLE, true),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void usb_bus_class_init(ObjectClass *klass, void *data)
+{
+ BusClass *k = BUS_CLASS(klass);
+ HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
+
+ k->print_dev = usb_bus_dev_print;
+ k->get_dev_path = usb_get_dev_path;
+ k->get_fw_dev_path = usb_get_fw_dev_path;
+ hc->unplug = qdev_simple_device_unplug_cb;
+}
+
+static const TypeInfo usb_bus_info = {
+ .name = TYPE_USB_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(USBBus),
+ .class_init = usb_bus_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_HOTPLUG_HANDLER },
+ { }
+ }
+};
+
+static int next_usb_bus = 0;
+static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
+
+static int usb_device_post_load(void *opaque, int version_id)
+{
+ USBDevice *dev = opaque;
+
+ if (dev->state == USB_STATE_NOTATTACHED) {
+ dev->attached = 0;
+ } else {
+ dev->attached = 1;
+ }
+ if (dev->setup_index < 0 ||
+ dev->setup_len < 0 ||
+ dev->setup_index > dev->setup_len ||
+ dev->setup_len > sizeof(dev->data_buf)) {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+const VMStateDescription vmstate_usb_device = {
+ .name = "USBDevice",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = usb_device_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(addr, USBDevice),
+ VMSTATE_INT32(state, USBDevice),
+ VMSTATE_INT32(remote_wakeup, USBDevice),
+ VMSTATE_INT32(setup_state, USBDevice),
+ VMSTATE_INT32(setup_len, USBDevice),
+ VMSTATE_INT32(setup_index, USBDevice),
+ VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+void usb_bus_new(USBBus *bus, size_t bus_size,
+ USBBusOps *ops, DeviceState *host)
+{
+ qbus_create_inplace(bus, bus_size, TYPE_USB_BUS, host, NULL);
+ qbus_set_bus_hotplug_handler(BUS(bus), &error_abort);
+ bus->ops = ops;
+ bus->busnr = next_usb_bus++;
+ QTAILQ_INIT(&bus->free);
+ QTAILQ_INIT(&bus->used);
+ QTAILQ_INSERT_TAIL(&busses, bus, next);
+}
+
+void usb_bus_release(USBBus *bus)
+{
+ assert(next_usb_bus > 0);
+
+ QTAILQ_REMOVE(&busses, bus, next);
+}
+
+USBBus *usb_bus_find(int busnr)
+{
+ USBBus *bus;
+
+ if (-1 == busnr)
+ return QTAILQ_FIRST(&busses);
+ QTAILQ_FOREACH(bus, &busses, next) {
+ if (bus->busnr == busnr)
+ return bus;
+ }
+ return NULL;
+}
+
+static void usb_device_realize(USBDevice *dev, Error **errp)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+
+ if (klass->realize) {
+ klass->realize(dev, errp);
+ }
+}
+
+USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->find_device) {
+ return klass->find_device(dev, addr);
+ }
+ return NULL;
+}
+
+static void usb_device_handle_destroy(USBDevice *dev)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->handle_destroy) {
+ klass->handle_destroy(dev);
+ }
+}
+
+void usb_device_cancel_packet(USBDevice *dev, USBPacket *p)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->cancel_packet) {
+ klass->cancel_packet(dev, p);
+ }
+}
+
+void usb_device_handle_attach(USBDevice *dev)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->handle_attach) {
+ klass->handle_attach(dev);
+ }
+}
+
+void usb_device_handle_reset(USBDevice *dev)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->handle_reset) {
+ klass->handle_reset(dev);
+ }
+}
+
+void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
+ int value, int index, int length, uint8_t *data)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->handle_control) {
+ klass->handle_control(dev, p, request, value, index, length, data);
+ }
+}
+
+void usb_device_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->handle_data) {
+ klass->handle_data(dev, p);
+ }
+}
+
+const char *usb_device_get_product_desc(USBDevice *dev)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ return klass->product_desc;
+}
+
+const USBDesc *usb_device_get_usb_desc(USBDevice *dev)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (dev->usb_desc) {
+ return dev->usb_desc;
+ }
+ return klass->usb_desc;
+}
+
+void usb_device_set_interface(USBDevice *dev, int interface,
+ int alt_old, int alt_new)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->set_interface) {
+ klass->set_interface(dev, interface, alt_old, alt_new);
+ }
+}
+
+void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->flush_ep_queue) {
+ klass->flush_ep_queue(dev, ep);
+ }
+}
+
+void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->ep_stopped) {
+ klass->ep_stopped(dev, ep);
+ }
+}
+
+int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps,
+ int streams)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->alloc_streams) {
+ return klass->alloc_streams(dev, eps, nr_eps, streams);
+ }
+ return 0;
+}
+
+void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps)
+{
+ USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
+ if (klass->free_streams) {
+ klass->free_streams(dev, eps, nr_eps);
+ }
+}
+
+static void usb_qdev_realize(DeviceState *qdev, Error **errp)
+{
+ USBDevice *dev = USB_DEVICE(qdev);
+ Error *local_err = NULL;
+
+ pstrcpy(dev->product_desc, sizeof(dev->product_desc),
+ usb_device_get_product_desc(dev));
+ dev->auto_attach = 1;
+ QLIST_INIT(&dev->strings);
+ usb_ep_init(dev);
+
+ usb_claim_port(dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ usb_device_realize(dev, &local_err);
+ if (local_err) {
+ usb_release_port(dev);
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ if (dev->auto_attach) {
+ usb_device_attach(dev, &local_err);
+ if (local_err) {
+ usb_qdev_unrealize(qdev, NULL);
+ error_propagate(errp, local_err);
+ return;
+ }
+ }
+}
+
+static void usb_qdev_unrealize(DeviceState *qdev, Error **errp)
+{
+ USBDevice *dev = USB_DEVICE(qdev);
+
+ if (dev->attached) {
+ usb_device_detach(dev);
+ }
+ usb_device_handle_destroy(dev);
+ if (dev->port) {
+ usb_release_port(dev);
+ }
+}
+
+typedef struct LegacyUSBFactory
+{
+ const char *name;
+ const char *usbdevice_name;
+ USBDevice *(*usbdevice_init)(USBBus *bus, const char *params);
+} LegacyUSBFactory;
+
+static GSList *legacy_usb_factory;
+
+void usb_legacy_register(const char *typename, const char *usbdevice_name,
+ USBDevice *(*usbdevice_init)(USBBus *bus,
+ const char *params))
+{
+ if (usbdevice_name) {
+ LegacyUSBFactory *f = g_malloc0(sizeof(*f));
+ f->name = typename;
+ f->usbdevice_name = usbdevice_name;
+ f->usbdevice_init = usbdevice_init;
+ legacy_usb_factory = g_slist_append(legacy_usb_factory, f);
+ }
+}
+
+USBDevice *usb_create(USBBus *bus, const char *name)
+{
+ DeviceState *dev;
+
+ dev = qdev_create(&bus->qbus, name);
+ return USB_DEVICE(dev);
+}
+
+static USBDevice *usb_try_create_simple(USBBus *bus, const char *name,
+ Error **errp)
+{
+ Error *err = NULL;
+ USBDevice *dev;
+
+ dev = USB_DEVICE(qdev_try_create(&bus->qbus, name));
+ if (!dev) {
+ error_setg(errp, "Failed to create USB device '%s'", name);
+ return NULL;
+ }
+ object_property_set_bool(OBJECT(dev), true, "realized", &err);
+ if (err) {
+ error_setg(errp, "Failed to initialize USB device '%s': %s",
+ name, error_get_pretty(err));
+ error_free(err);
+ object_unparent(OBJECT(dev));
+ return NULL;
+ }
+ return dev;
+}
+
+USBDevice *usb_create_simple(USBBus *bus, const char *name)
+{
+ return usb_try_create_simple(bus, name, &error_abort);
+}
+
+static void usb_fill_port(USBPort *port, void *opaque, int index,
+ USBPortOps *ops, int speedmask)
+{
+ port->opaque = opaque;
+ port->index = index;
+ port->ops = ops;
+ port->speedmask = speedmask;
+ usb_port_location(port, NULL, index + 1);
+}
+
+void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
+ USBPortOps *ops, int speedmask)
+{
+ usb_fill_port(port, opaque, index, ops, speedmask);
+ QTAILQ_INSERT_TAIL(&bus->free, port, next);
+ bus->nfree++;
+}
+
+void usb_register_companion(const char *masterbus, USBPort *ports[],
+ uint32_t portcount, uint32_t firstport,
+ void *opaque, USBPortOps *ops, int speedmask,
+ Error **errp)
+{
+ USBBus *bus;
+ int i;
+
+ QTAILQ_FOREACH(bus, &busses, next) {
+ if (strcmp(bus->qbus.name, masterbus) == 0) {
+ break;
+ }
+ }
+
+ if (!bus) {
+ error_setg(errp, "USB bus '%s' not found", masterbus);
+ return;
+ }
+ if (!bus->ops->register_companion) {
+ error_setg(errp, "Can't use USB bus '%s' as masterbus,"
+ " it doesn't support companion controllers",
+ masterbus);
+ return;
+ }
+
+ for (i = 0; i < portcount; i++) {
+ usb_fill_port(ports[i], opaque, i, ops, speedmask);
+ }
+
+ bus->ops->register_companion(bus, ports, portcount, firstport, errp);
+}
+
+void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)
+{
+ if (upstream) {
+ snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
+ upstream->path, portnr);
+ downstream->hubcount = upstream->hubcount + 1;
+ } else {
+ snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
+ downstream->hubcount = 0;
+ }
+}
+
+void usb_unregister_port(USBBus *bus, USBPort *port)
+{
+ if (port->dev) {
+ object_unparent(OBJECT(port->dev));
+ }
+ QTAILQ_REMOVE(&bus->free, port, next);
+ bus->nfree--;
+}
+
+void usb_claim_port(USBDevice *dev, Error **errp)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port;
+
+ assert(dev->port == NULL);
+
+ if (dev->port_path) {
+ QTAILQ_FOREACH(port, &bus->free, next) {
+ if (strcmp(port->path, dev->port_path) == 0) {
+ break;
+ }
+ }
+ if (port == NULL) {
+ error_setg(errp, "usb port %s (bus %s) not found (in use?)",
+ dev->port_path, bus->qbus.name);
+ return;
+ }
+ } else {
+ if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) {
+ /* Create a new hub and chain it on */
+ usb_try_create_simple(bus, "usb-hub", NULL);
+ }
+ if (bus->nfree == 0) {
+ error_setg(errp, "tried to attach usb device %s to a bus "
+ "with no free ports", dev->product_desc);
+ return;
+ }
+ port = QTAILQ_FIRST(&bus->free);
+ }
+ trace_usb_port_claim(bus->busnr, port->path);
+
+ QTAILQ_REMOVE(&bus->free, port, next);
+ bus->nfree--;
+
+ dev->port = port;
+ port->dev = dev;
+
+ QTAILQ_INSERT_TAIL(&bus->used, port, next);
+ bus->nused++;
+}
+
+void usb_release_port(USBDevice *dev)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port = dev->port;
+
+ assert(port != NULL);
+ trace_usb_port_release(bus->busnr, port->path);
+
+ QTAILQ_REMOVE(&bus->used, port, next);
+ bus->nused--;
+
+ dev->port = NULL;
+ port->dev = NULL;
+
+ QTAILQ_INSERT_TAIL(&bus->free, port, next);
+ bus->nfree++;
+}
+
+static void usb_mask_to_str(char *dest, size_t size,
+ unsigned int speedmask)
+{
+ static const struct {
+ unsigned int mask;
+ const char *name;
+ } speeds[] = {
+ { .mask = USB_SPEED_MASK_FULL, .name = "full" },
+ { .mask = USB_SPEED_MASK_HIGH, .name = "high" },
+ { .mask = USB_SPEED_MASK_SUPER, .name = "super" },
+ };
+ int i, pos = 0;
+
+ for (i = 0; i < ARRAY_SIZE(speeds); i++) {
+ if (speeds[i].mask & speedmask) {
+ pos += snprintf(dest + pos, size - pos, "%s%s",
+ pos ? "+" : "",
+ speeds[i].name);
+ }
+ }
+}
+
+void usb_check_attach(USBDevice *dev, Error **errp)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port = dev->port;
+ char devspeed[32], portspeed[32];
+
+ assert(port != NULL);
+ assert(!dev->attached);
+ usb_mask_to_str(devspeed, sizeof(devspeed), dev->speedmask);
+ usb_mask_to_str(portspeed, sizeof(portspeed), port->speedmask);
+ trace_usb_port_attach(bus->busnr, port->path,
+ devspeed, portspeed);
+
+ if (!(port->speedmask & dev->speedmask)) {
+ error_setg(errp, "Warning: speed mismatch trying to attach"
+ " usb device \"%s\" (%s speed)"
+ " to bus \"%s\", port \"%s\" (%s speed)",
+ dev->product_desc, devspeed,
+ bus->qbus.name, port->path, portspeed);
+ return;
+ }
+}
+
+void usb_device_attach(USBDevice *dev, Error **errp)
+{
+ USBPort *port = dev->port;
+ Error *local_err = NULL;
+
+ usb_check_attach(dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ dev->attached++;
+ usb_attach(port);
+}
+
+int usb_device_detach(USBDevice *dev)
+{
+ USBBus *bus = usb_bus_from_device(dev);
+ USBPort *port = dev->port;
+
+ assert(port != NULL);
+ assert(dev->attached);
+ trace_usb_port_detach(bus->busnr, port->path);
+
+ usb_detach(port);
+ dev->attached--;
+ return 0;
+}
+
+int usb_device_delete_addr(int busnr, int addr)
+{
+ USBBus *bus;
+ USBPort *port;
+ USBDevice *dev;
+
+ bus = usb_bus_find(busnr);
+ if (!bus)
+ return -1;
+
+ QTAILQ_FOREACH(port, &bus->used, next) {
+ if (port->dev->addr == addr)
+ break;
+ }
+ if (!port)
+ return -1;
+ dev = port->dev;
+
+ object_unparent(OBJECT(dev));
+ return 0;
+}
+
+static const char *usb_speed(unsigned int speed)
+{
+ static const char *txt[] = {
+ [ USB_SPEED_LOW ] = "1.5",
+ [ USB_SPEED_FULL ] = "12",
+ [ USB_SPEED_HIGH ] = "480",
+ [ USB_SPEED_SUPER ] = "5000",
+ };
+ if (speed >= ARRAY_SIZE(txt))
+ return "?";
+ return txt[speed];
+}
+
+static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
+{
+ USBDevice *dev = USB_DEVICE(qdev);
+ USBBus *bus = usb_bus_from_device(dev);
+
+ monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
+ indent, "", bus->busnr, dev->addr,
+ dev->port ? dev->port->path : "-",
+ usb_speed(dev->speed), dev->product_desc,
+ dev->attached ? ", attached" : "");
+}
+
+static char *usb_get_dev_path(DeviceState *qdev)
+{
+ USBDevice *dev = USB_DEVICE(qdev);
+ DeviceState *hcd = qdev->parent_bus->parent;
+ char *id = NULL;
+
+ if (dev->flags & (1 << USB_DEV_FLAG_FULL_PATH)) {
+ id = qdev_get_dev_path(hcd);
+ }
+ if (id) {
+ char *ret = g_strdup_printf("%s/%s", id, dev->port->path);
+ g_free(id);
+ return ret;
+ } else {
+ return g_strdup(dev->port->path);
+ }
+}
+
+static char *usb_get_fw_dev_path(DeviceState *qdev)
+{
+ USBDevice *dev = USB_DEVICE(qdev);
+ char *fw_path, *in;
+ ssize_t pos = 0, fw_len;
+ long nr;
+
+ fw_len = 32 + strlen(dev->port->path) * 6;
+ fw_path = g_malloc(fw_len);
+ in = dev->port->path;
+ while (fw_len - pos > 0) {
+ nr = strtol(in, &in, 10);
+ if (in[0] == '.') {
+ /* some hub between root port and device */
+ pos += snprintf(fw_path + pos, fw_len - pos, "hub@%lx/", nr);
+ in++;
+ } else {
+ /* the device itself */
+ pos += snprintf(fw_path + pos, fw_len - pos, "%s@%lx",
+ qdev_fw_name(qdev), nr);
+ break;
+ }
+ }
+ return fw_path;
+}
+
+void hmp_info_usb(Monitor *mon, const QDict *qdict)
+{
+ USBBus *bus;
+ USBDevice *dev;
+ USBPort *port;
+
+ if (QTAILQ_EMPTY(&busses)) {
+ monitor_printf(mon, "USB support not enabled\n");
+ return;
+ }
+
+ QTAILQ_FOREACH(bus, &busses, next) {
+ QTAILQ_FOREACH(port, &bus->used, next) {
+ dev = port->dev;
+ if (!dev)
+ continue;
+ monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
+ bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
+ dev->product_desc);
+ }
+ }
+}
+
+/* handle legacy -usbdevice cmd line option */
+USBDevice *usbdevice_create(const char *cmdline)
+{
+ USBBus *bus = usb_bus_find(-1 /* any */);
+ LegacyUSBFactory *f = NULL;
+ Error *err = NULL;
+ GSList *i;
+ char driver[32];
+ const char *params;
+ int len;
+ USBDevice *dev;
+
+ params = strchr(cmdline,':');
+ if (params) {
+ params++;
+ len = params - cmdline;
+ if (len > sizeof(driver))
+ len = sizeof(driver);
+ pstrcpy(driver, len, cmdline);
+ } else {
+ params = "";
+ pstrcpy(driver, sizeof(driver), cmdline);
+ }
+
+ for (i = legacy_usb_factory; i; i = i->next) {
+ f = i->data;
+ if (strcmp(f->usbdevice_name, driver) == 0) {
+ break;
+ }
+ }
+ if (i == NULL) {
+#if 0
+ /* no error because some drivers are not converted (yet) */
+ error_report("usbdevice %s not found", driver);
+#endif
+ return NULL;
+ }
+
+ if (!bus) {
+ error_report("Error: no usb bus to attach usbdevice %s, "
+ "please try -machine usb=on and check that "
+ "the machine model supports USB", driver);
+ return NULL;
+ }
+
+ if (f->usbdevice_init) {
+ dev = f->usbdevice_init(bus, params);
+ } else {
+ if (*params) {
+ error_report("usbdevice %s accepts no params", driver);
+ return NULL;
+ }
+ dev = usb_create(bus, f->name);
+ }
+ if (!dev) {
+ error_report("Failed to create USB device '%s'", f->name);
+ return NULL;
+ }
+ object_property_set_bool(OBJECT(dev), true, "realized", &err);
+ if (err) {
+ error_report("Failed to initialize USB device '%s': %s",
+ f->name, error_get_pretty(err));
+ error_free(err);
+ object_unparent(OBJECT(dev));
+ return NULL;
+ }
+ return dev;
+}
+
+static void usb_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *k = DEVICE_CLASS(klass);
+ k->bus_type = TYPE_USB_BUS;
+ k->realize = usb_qdev_realize;
+ k->unrealize = usb_qdev_unrealize;
+ k->props = usb_props;
+}
+
+static const TypeInfo usb_device_type_info = {
+ .name = TYPE_USB_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(USBDevice),
+ .abstract = true,
+ .class_size = sizeof(USBDeviceClass),
+ .class_init = usb_device_class_init,
+};
+
+static void usb_register_types(void)
+{
+ type_register_static(&usb_bus_info);
+ type_register_static(&usb_device_type_info);
+}
+
+type_init(usb_register_types)
Code Review / kvmfornfv.git / blobdiff