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#include "hw.h"
#include "usb.h"
#include "qdev.h"
#include "sysemu.h"
#include "monitor.h"
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
static struct BusInfo usb_bus_info = {
.name = "USB",
.size = sizeof(USBBus),
.print_dev = usb_bus_dev_print,
};
static int next_usb_bus = 0;
static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
void usb_bus_new(USBBus *bus, DeviceState *host)
{
qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
bus->busnr = next_usb_bus++;
bus->qbus.allow_hotplug = 1; /* Yes, we can */
QTAILQ_INIT(&bus->free);
QTAILQ_INIT(&bus->used);
QTAILQ_INSERT_TAIL(&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 int usb_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base);
int rc;
pstrcpy(dev->devname, sizeof(dev->devname), qdev->info->name);
dev->info = info;
rc = dev->info->init(dev);
if (rc == 0)
usb_device_attach(dev);
return rc;
}
static int usb_qdev_exit(DeviceState *qdev)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
usb_device_detach(dev);
if (dev->info->handle_destroy) {
dev->info->handle_destroy(dev);
}
return 0;
}
void usb_qdev_register(USBDeviceInfo *info)
{
info->qdev.bus_info = &usb_bus_info;
info->qdev.init = usb_qdev_init;
info->qdev.unplug = qdev_simple_unplug_cb;
info->qdev.exit = usb_qdev_exit;
qdev_register(&info->qdev);
}
void usb_qdev_register_many(USBDeviceInfo *info)
{
while (info->qdev.name) {
usb_qdev_register(info);
info++;
}
}
USBDevice *usb_create(USBBus *bus, const char *name)
{
DeviceState *dev;
#if 1
/* temporary stopgap until all usb is properly qdev-ified */
if (!bus) {
bus = usb_bus_find(-1);
if (!bus)
return NULL;
fprintf(stderr, "%s: no bus specified, using \"%s\" for \"%s\"\n",
__FUNCTION__, bus->qbus.name, name);
}
#endif
dev = qdev_create(&bus->qbus, name);
return DO_UPCAST(USBDevice, qdev, dev);
}
USBDevice *usb_create_simple(USBBus *bus, const char *name)
{
USBDevice *dev = usb_create(bus, name);
qdev_init_nofail(&dev->qdev);
return dev;
}
void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
usb_attachfn attach)
{
port->opaque = opaque;
port->index = index;
port->attach = attach;
QTAILQ_INSERT_TAIL(&bus->free, port, next);
bus->nfree++;
}
void usb_unregister_port(USBBus *bus, USBPort *port)
{
if (port->dev)
qdev_free(&port->dev->qdev);
QTAILQ_REMOVE(&bus->free, port, next);
bus->nfree--;
}
static void do_attach(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
USBPort *port;
if (dev->attached) {
fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
dev->devname);
return;
}
dev->attached++;
port = QTAILQ_FIRST(&bus->free);
QTAILQ_REMOVE(&bus->free, port, next);
bus->nfree--;
usb_attach(port, dev);
QTAILQ_INSERT_TAIL(&bus->used, port, next);
bus->nused++;
}
int usb_device_attach(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
USBDevice *hub;
if (bus->nfree == 1) {
/* Create a new hub and chain it on. */
hub = usb_create_simple(bus, "QEMU USB Hub");
}
do_attach(dev);
return 0;
}
int usb_device_detach(USBDevice *dev)
{
USBBus *bus = usb_bus_from_device(dev);
USBPort *port;
if (!dev->attached) {
fprintf(stderr, "Warning: tried to detach unattached usb device %s\n",
dev->devname);
return -1;
}
dev->attached--;
QTAILQ_FOREACH(port, &bus->used, next) {
if (port->dev == dev)
break;
}
assert(port != NULL);
QTAILQ_REMOVE(&bus->used, port, next);
bus->nused--;
usb_attach(port, NULL);
QTAILQ_INSERT_TAIL(&bus->free, port, next);
bus->nfree++;
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;
qdev_free(&dev->qdev);
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",
};
if (speed >= ARRAY_SIZE(txt))
return "?";
return txt[speed];
}
static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
USBBus *bus = usb_bus_from_device(dev);
monitor_printf(mon, "%*saddr %d.%d, speed %s, name %s\n", indent, "",
bus->busnr, dev->addr,
usb_speed(dev->speed), dev->devname);
}
void usb_info(Monitor *mon)
{
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, Speed %s Mb/s, Product %s\n",
bus->busnr, dev->addr, usb_speed(dev->speed), dev->devname);
}
}
}
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