root / hw / usb / bus.c @ ed9873bf
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#include "hw/hw.h" |
---|---|
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#include "hw/usb.h" |
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#include "hw/qdev.h" |
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#include "sysemu.h" |
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#include "monitor.h" |
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#include "trace.h" |
7 |
|
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static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); |
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|
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static char *usb_get_dev_path(DeviceState *dev); |
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static char *usb_get_fw_dev_path(DeviceState *qdev); |
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static int usb_qdev_exit(DeviceState *qdev); |
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|
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static Property usb_props[] = {
|
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DEFINE_PROP_STRING("port", USBDevice, port_path),
|
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DEFINE_PROP_BIT("full-path", USBDevice, flags,
|
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USB_DEV_FLAG_FULL_PATH, true),
|
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DEFINE_PROP_END_OF_LIST() |
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}; |
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|
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static void usb_bus_class_init(ObjectClass *klass, void *data) |
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{ |
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BusClass *k = BUS_CLASS(klass); |
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|
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k->print_dev = usb_bus_dev_print; |
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k->get_dev_path = usb_get_dev_path; |
27 |
k->get_fw_dev_path = usb_get_fw_dev_path; |
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} |
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|
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static const TypeInfo usb_bus_info = { |
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.name = TYPE_USB_BUS, |
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.parent = TYPE_BUS, |
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.instance_size = sizeof(USBBus),
|
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.class_init = usb_bus_class_init, |
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}; |
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|
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static int next_usb_bus = 0; |
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static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
|
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|
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static int usb_device_post_load(void *opaque, int version_id) |
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{ |
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USBDevice *dev = opaque; |
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|
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if (dev->state == USB_STATE_NOTATTACHED) {
|
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dev->attached = 0;
|
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} else {
|
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dev->attached = 1;
|
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} |
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return 0; |
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} |
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|
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const VMStateDescription vmstate_usb_device = {
|
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.name = "USBDevice",
|
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.version_id = 1,
|
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.minimum_version_id = 1,
|
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.post_load = usb_device_post_load, |
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.fields = (VMStateField []) { |
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VMSTATE_UINT8(addr, USBDevice), |
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VMSTATE_INT32(state, USBDevice), |
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VMSTATE_INT32(remote_wakeup, USBDevice), |
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VMSTATE_INT32(setup_state, USBDevice), |
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VMSTATE_INT32(setup_len, USBDevice), |
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VMSTATE_INT32(setup_index, USBDevice), |
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VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
|
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VMSTATE_END_OF_LIST(), |
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} |
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}; |
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|
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void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host)
|
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{ |
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qbus_create_inplace(&bus->qbus, TYPE_USB_BUS, host, NULL);
|
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bus->ops = ops; |
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bus->busnr = next_usb_bus++; |
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bus->qbus.allow_hotplug = 1; /* Yes, we can */ |
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QTAILQ_INIT(&bus->free); |
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QTAILQ_INIT(&bus->used); |
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QTAILQ_INSERT_TAIL(&busses, bus, next); |
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} |
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|
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USBBus *usb_bus_find(int busnr)
|
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{ |
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USBBus *bus; |
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|
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if (-1 == busnr) |
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return QTAILQ_FIRST(&busses);
|
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QTAILQ_FOREACH(bus, &busses, next) { |
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if (bus->busnr == busnr)
|
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return bus;
|
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} |
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return NULL; |
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} |
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|
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static int usb_device_init(USBDevice *dev) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->init) {
|
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return klass->init(dev);
|
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} |
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return 0; |
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} |
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|
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USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->find_device) {
|
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return klass->find_device(dev, addr);
|
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} |
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return NULL; |
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} |
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|
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static void usb_device_handle_destroy(USBDevice *dev) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->handle_destroy) {
|
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klass->handle_destroy(dev); |
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} |
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} |
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|
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void usb_device_cancel_packet(USBDevice *dev, USBPacket *p)
|
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->cancel_packet) {
|
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klass->cancel_packet(dev, p); |
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} |
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} |
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|
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void usb_device_handle_attach(USBDevice *dev)
|
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->handle_attach) {
|
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klass->handle_attach(dev); |
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} |
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} |
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|
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void usb_device_handle_reset(USBDevice *dev)
|
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->handle_reset) {
|
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klass->handle_reset(dev); |
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} |
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} |
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|
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int usb_device_handle_control(USBDevice *dev, USBPacket *p, int request, |
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int value, int index, int length, uint8_t *data) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
147 |
if (klass->handle_control) {
|
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return klass->handle_control(dev, p, request, value, index, length,
|
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data); |
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} |
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return -ENOSYS;
|
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} |
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|
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int usb_device_handle_data(USBDevice *dev, USBPacket *p)
|
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->handle_data) {
|
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return klass->handle_data(dev, p);
|
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} |
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return -ENOSYS;
|
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} |
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|
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const char *usb_device_get_product_desc(USBDevice *dev) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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return klass->product_desc;
|
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} |
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|
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const USBDesc *usb_device_get_usb_desc(USBDevice *dev)
|
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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return klass->usb_desc;
|
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} |
174 |
|
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void usb_device_set_interface(USBDevice *dev, int interface, |
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int alt_old, int alt_new) |
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{ |
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USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
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if (klass->set_interface) {
|
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klass->set_interface(dev, interface, alt_old, alt_new); |
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} |
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} |
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|
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static int usb_qdev_init(DeviceState *qdev) |
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{ |
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USBDevice *dev = USB_DEVICE(qdev); |
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int rc;
|
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|
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pstrcpy(dev->product_desc, sizeof(dev->product_desc),
|
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usb_device_get_product_desc(dev)); |
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dev->auto_attach = 1;
|
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QLIST_INIT(&dev->strings); |
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usb_ep_init(dev); |
194 |
rc = usb_claim_port(dev); |
195 |
if (rc != 0) { |
196 |
return rc;
|
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} |
198 |
rc = usb_device_init(dev); |
199 |
if (rc != 0) { |
200 |
usb_release_port(dev); |
201 |
return rc;
|
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} |
203 |
if (dev->auto_attach) {
|
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rc = usb_device_attach(dev); |
205 |
if (rc != 0) { |
206 |
usb_qdev_exit(qdev); |
207 |
return rc;
|
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} |
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} |
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return 0; |
211 |
} |
212 |
|
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static int usb_qdev_exit(DeviceState *qdev) |
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{ |
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USBDevice *dev = USB_DEVICE(qdev); |
216 |
|
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if (dev->attached) {
|
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usb_device_detach(dev); |
219 |
} |
220 |
usb_device_handle_destroy(dev); |
221 |
if (dev->port) {
|
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usb_release_port(dev); |
223 |
} |
224 |
return 0; |
225 |
} |
226 |
|
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typedef struct LegacyUSBFactory |
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{ |
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const char *name; |
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const char *usbdevice_name; |
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USBDevice *(*usbdevice_init)(USBBus *bus, const char *params); |
232 |
} LegacyUSBFactory; |
233 |
|
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static GSList *legacy_usb_factory;
|
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|
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void usb_legacy_register(const char *typename, const char *usbdevice_name, |
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USBDevice *(*usbdevice_init)(USBBus *bus, |
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const char *params)) |
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{ |
240 |
if (usbdevice_name) {
|
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LegacyUSBFactory *f = g_malloc0(sizeof(*f));
|
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f->name = typename; |
243 |
f->usbdevice_name = usbdevice_name; |
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f->usbdevice_init = usbdevice_init; |
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legacy_usb_factory = g_slist_append(legacy_usb_factory, f); |
246 |
} |
247 |
} |
248 |
|
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USBDevice *usb_create(USBBus *bus, const char *name) |
250 |
{ |
251 |
DeviceState *dev; |
252 |
|
253 |
dev = qdev_create(&bus->qbus, name); |
254 |
return USB_DEVICE(dev);
|
255 |
} |
256 |
|
257 |
USBDevice *usb_create_simple(USBBus *bus, const char *name) |
258 |
{ |
259 |
USBDevice *dev = usb_create(bus, name); |
260 |
int rc;
|
261 |
|
262 |
if (!dev) {
|
263 |
error_report("Failed to create USB device '%s'", name);
|
264 |
return NULL; |
265 |
} |
266 |
rc = qdev_init(&dev->qdev); |
267 |
if (rc < 0) { |
268 |
error_report("Failed to initialize USB device '%s'", name);
|
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return NULL; |
270 |
} |
271 |
return dev;
|
272 |
} |
273 |
|
274 |
static void usb_fill_port(USBPort *port, void *opaque, int index, |
275 |
USBPortOps *ops, int speedmask)
|
276 |
{ |
277 |
port->opaque = opaque; |
278 |
port->index = index; |
279 |
port->ops = ops; |
280 |
port->speedmask = speedmask; |
281 |
usb_port_location(port, NULL, index + 1); |
282 |
} |
283 |
|
284 |
void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, |
285 |
USBPortOps *ops, int speedmask)
|
286 |
{ |
287 |
usb_fill_port(port, opaque, index, ops, speedmask); |
288 |
QTAILQ_INSERT_TAIL(&bus->free, port, next); |
289 |
bus->nfree++; |
290 |
} |
291 |
|
292 |
int usb_register_companion(const char *masterbus, USBPort *ports[], |
293 |
uint32_t portcount, uint32_t firstport, |
294 |
void *opaque, USBPortOps *ops, int speedmask) |
295 |
{ |
296 |
USBBus *bus; |
297 |
int i;
|
298 |
|
299 |
QTAILQ_FOREACH(bus, &busses, next) { |
300 |
if (strcmp(bus->qbus.name, masterbus) == 0) { |
301 |
break;
|
302 |
} |
303 |
} |
304 |
|
305 |
if (!bus || !bus->ops->register_companion) {
|
306 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
|
307 |
"an USB masterbus");
|
308 |
if (bus) {
|
309 |
error_printf_unless_qmp( |
310 |
"USB bus '%s' does not allow companion controllers\n",
|
311 |
masterbus); |
312 |
} |
313 |
return -1; |
314 |
} |
315 |
|
316 |
for (i = 0; i < portcount; i++) { |
317 |
usb_fill_port(ports[i], opaque, i, ops, speedmask); |
318 |
} |
319 |
|
320 |
return bus->ops->register_companion(bus, ports, portcount, firstport);
|
321 |
} |
322 |
|
323 |
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr) |
324 |
{ |
325 |
if (upstream) {
|
326 |
snprintf(downstream->path, sizeof(downstream->path), "%s.%d", |
327 |
upstream->path, portnr); |
328 |
} else {
|
329 |
snprintf(downstream->path, sizeof(downstream->path), "%d", portnr); |
330 |
} |
331 |
} |
332 |
|
333 |
void usb_unregister_port(USBBus *bus, USBPort *port)
|
334 |
{ |
335 |
if (port->dev)
|
336 |
qdev_free(&port->dev->qdev); |
337 |
QTAILQ_REMOVE(&bus->free, port, next); |
338 |
bus->nfree--; |
339 |
} |
340 |
|
341 |
int usb_claim_port(USBDevice *dev)
|
342 |
{ |
343 |
USBBus *bus = usb_bus_from_device(dev); |
344 |
USBPort *port; |
345 |
|
346 |
assert(dev->port == NULL);
|
347 |
|
348 |
if (dev->port_path) {
|
349 |
QTAILQ_FOREACH(port, &bus->free, next) { |
350 |
if (strcmp(port->path, dev->port_path) == 0) { |
351 |
break;
|
352 |
} |
353 |
} |
354 |
if (port == NULL) { |
355 |
error_report("Error: usb port %s (bus %s) not found (in use?)",
|
356 |
dev->port_path, bus->qbus.name); |
357 |
return -1; |
358 |
} |
359 |
} else {
|
360 |
if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) { |
361 |
/* Create a new hub and chain it on */
|
362 |
usb_create_simple(bus, "usb-hub");
|
363 |
} |
364 |
if (bus->nfree == 0) { |
365 |
error_report("Error: tried to attach usb device %s to a bus "
|
366 |
"with no free ports", dev->product_desc);
|
367 |
return -1; |
368 |
} |
369 |
port = QTAILQ_FIRST(&bus->free); |
370 |
} |
371 |
trace_usb_port_claim(bus->busnr, port->path); |
372 |
|
373 |
QTAILQ_REMOVE(&bus->free, port, next); |
374 |
bus->nfree--; |
375 |
|
376 |
dev->port = port; |
377 |
port->dev = dev; |
378 |
|
379 |
QTAILQ_INSERT_TAIL(&bus->used, port, next); |
380 |
bus->nused++; |
381 |
return 0; |
382 |
} |
383 |
|
384 |
void usb_release_port(USBDevice *dev)
|
385 |
{ |
386 |
USBBus *bus = usb_bus_from_device(dev); |
387 |
USBPort *port = dev->port; |
388 |
|
389 |
assert(port != NULL);
|
390 |
trace_usb_port_release(bus->busnr, port->path); |
391 |
|
392 |
QTAILQ_REMOVE(&bus->used, port, next); |
393 |
bus->nused--; |
394 |
|
395 |
dev->port = NULL;
|
396 |
port->dev = NULL;
|
397 |
|
398 |
QTAILQ_INSERT_TAIL(&bus->free, port, next); |
399 |
bus->nfree++; |
400 |
} |
401 |
|
402 |
int usb_device_attach(USBDevice *dev)
|
403 |
{ |
404 |
USBBus *bus = usb_bus_from_device(dev); |
405 |
USBPort *port = dev->port; |
406 |
|
407 |
assert(port != NULL);
|
408 |
assert(!dev->attached); |
409 |
trace_usb_port_attach(bus->busnr, port->path); |
410 |
|
411 |
if (!(port->speedmask & dev->speedmask)) {
|
412 |
error_report("Warning: speed mismatch trying to attach "
|
413 |
"usb device %s to bus %s",
|
414 |
dev->product_desc, bus->qbus.name); |
415 |
return -1; |
416 |
} |
417 |
|
418 |
dev->attached++; |
419 |
usb_attach(port); |
420 |
|
421 |
return 0; |
422 |
} |
423 |
|
424 |
int usb_device_detach(USBDevice *dev)
|
425 |
{ |
426 |
USBBus *bus = usb_bus_from_device(dev); |
427 |
USBPort *port = dev->port; |
428 |
|
429 |
assert(port != NULL);
|
430 |
assert(dev->attached); |
431 |
trace_usb_port_detach(bus->busnr, port->path); |
432 |
|
433 |
usb_detach(port); |
434 |
dev->attached--; |
435 |
return 0; |
436 |
} |
437 |
|
438 |
int usb_device_delete_addr(int busnr, int addr) |
439 |
{ |
440 |
USBBus *bus; |
441 |
USBPort *port; |
442 |
USBDevice *dev; |
443 |
|
444 |
bus = usb_bus_find(busnr); |
445 |
if (!bus)
|
446 |
return -1; |
447 |
|
448 |
QTAILQ_FOREACH(port, &bus->used, next) { |
449 |
if (port->dev->addr == addr)
|
450 |
break;
|
451 |
} |
452 |
if (!port)
|
453 |
return -1; |
454 |
dev = port->dev; |
455 |
|
456 |
qdev_free(&dev->qdev); |
457 |
return 0; |
458 |
} |
459 |
|
460 |
static const char *usb_speed(unsigned int speed) |
461 |
{ |
462 |
static const char *txt[] = { |
463 |
[ USB_SPEED_LOW ] = "1.5",
|
464 |
[ USB_SPEED_FULL ] = "12",
|
465 |
[ USB_SPEED_HIGH ] = "480",
|
466 |
[ USB_SPEED_SUPER ] = "5000",
|
467 |
}; |
468 |
if (speed >= ARRAY_SIZE(txt))
|
469 |
return "?"; |
470 |
return txt[speed];
|
471 |
} |
472 |
|
473 |
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent) |
474 |
{ |
475 |
USBDevice *dev = USB_DEVICE(qdev); |
476 |
USBBus *bus = usb_bus_from_device(dev); |
477 |
|
478 |
monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
|
479 |
indent, "", bus->busnr, dev->addr,
|
480 |
dev->port ? dev->port->path : "-",
|
481 |
usb_speed(dev->speed), dev->product_desc, |
482 |
dev->attached ? ", attached" : ""); |
483 |
} |
484 |
|
485 |
static char *usb_get_dev_path(DeviceState *qdev) |
486 |
{ |
487 |
USBDevice *dev = USB_DEVICE(qdev); |
488 |
DeviceState *hcd = qdev->parent_bus->parent; |
489 |
char *id = NULL; |
490 |
|
491 |
if (dev->flags & (1 << USB_DEV_FLAG_FULL_PATH)) { |
492 |
id = qdev_get_dev_path(hcd); |
493 |
} |
494 |
if (id) {
|
495 |
char *ret = g_strdup_printf("%s/%s", id, dev->port->path); |
496 |
g_free(id); |
497 |
return ret;
|
498 |
} else {
|
499 |
return g_strdup(dev->port->path);
|
500 |
} |
501 |
} |
502 |
|
503 |
static char *usb_get_fw_dev_path(DeviceState *qdev) |
504 |
{ |
505 |
USBDevice *dev = USB_DEVICE(qdev); |
506 |
char *fw_path, *in;
|
507 |
ssize_t pos = 0, fw_len;
|
508 |
long nr;
|
509 |
|
510 |
fw_len = 32 + strlen(dev->port->path) * 6; |
511 |
fw_path = g_malloc(fw_len); |
512 |
in = dev->port->path; |
513 |
while (fw_len - pos > 0) { |
514 |
nr = strtol(in, &in, 10);
|
515 |
if (in[0] == '.') { |
516 |
/* some hub between root port and device */
|
517 |
pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
|
518 |
in++; |
519 |
} else {
|
520 |
/* the device itself */
|
521 |
pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
|
522 |
qdev_fw_name(qdev), nr); |
523 |
break;
|
524 |
} |
525 |
} |
526 |
return fw_path;
|
527 |
} |
528 |
|
529 |
void usb_info(Monitor *mon)
|
530 |
{ |
531 |
USBBus *bus; |
532 |
USBDevice *dev; |
533 |
USBPort *port; |
534 |
|
535 |
if (QTAILQ_EMPTY(&busses)) {
|
536 |
monitor_printf(mon, "USB support not enabled\n");
|
537 |
return;
|
538 |
} |
539 |
|
540 |
QTAILQ_FOREACH(bus, &busses, next) { |
541 |
QTAILQ_FOREACH(port, &bus->used, next) { |
542 |
dev = port->dev; |
543 |
if (!dev)
|
544 |
continue;
|
545 |
monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
|
546 |
bus->busnr, dev->addr, port->path, usb_speed(dev->speed), |
547 |
dev->product_desc); |
548 |
} |
549 |
} |
550 |
} |
551 |
|
552 |
/* handle legacy -usbdevice cmd line option */
|
553 |
USBDevice *usbdevice_create(const char *cmdline) |
554 |
{ |
555 |
USBBus *bus = usb_bus_find(-1 /* any */); |
556 |
LegacyUSBFactory *f = NULL;
|
557 |
GSList *i; |
558 |
char driver[32]; |
559 |
const char *params; |
560 |
int len;
|
561 |
|
562 |
params = strchr(cmdline,':');
|
563 |
if (params) {
|
564 |
params++; |
565 |
len = params - cmdline; |
566 |
if (len > sizeof(driver)) |
567 |
len = sizeof(driver);
|
568 |
pstrcpy(driver, len, cmdline); |
569 |
} else {
|
570 |
params = "";
|
571 |
pstrcpy(driver, sizeof(driver), cmdline);
|
572 |
} |
573 |
|
574 |
for (i = legacy_usb_factory; i; i = i->next) {
|
575 |
f = i->data; |
576 |
if (strcmp(f->usbdevice_name, driver) == 0) { |
577 |
break;
|
578 |
} |
579 |
} |
580 |
if (i == NULL) { |
581 |
#if 0
|
582 |
/* no error because some drivers are not converted (yet) */
|
583 |
error_report("usbdevice %s not found", driver);
|
584 |
#endif
|
585 |
return NULL; |
586 |
} |
587 |
|
588 |
if (!f->usbdevice_init) {
|
589 |
if (*params) {
|
590 |
error_report("usbdevice %s accepts no params", driver);
|
591 |
return NULL; |
592 |
} |
593 |
return usb_create_simple(bus, f->name);
|
594 |
} |
595 |
return f->usbdevice_init(bus, params);
|
596 |
} |
597 |
|
598 |
static void usb_device_class_init(ObjectClass *klass, void *data) |
599 |
{ |
600 |
DeviceClass *k = DEVICE_CLASS(klass); |
601 |
k->bus_type = TYPE_USB_BUS; |
602 |
k->init = usb_qdev_init; |
603 |
k->unplug = qdev_simple_unplug_cb; |
604 |
k->exit = usb_qdev_exit; |
605 |
k->props = usb_props; |
606 |
} |
607 |
|
608 |
static TypeInfo usb_device_type_info = {
|
609 |
.name = TYPE_USB_DEVICE, |
610 |
.parent = TYPE_DEVICE, |
611 |
.instance_size = sizeof(USBDevice),
|
612 |
.abstract = true,
|
613 |
.class_size = sizeof(USBDeviceClass),
|
614 |
.class_init = usb_device_class_init, |
615 |
}; |
616 |
|
617 |
static void usb_register_types(void) |
618 |
{ |
619 |
type_register_static(&usb_bus_info); |
620 |
type_register_static(&usb_device_type_info); |
621 |
} |
622 |
|
623 |
type_init(usb_register_types) |