[qemu.git] / hw / usb-bus.c

#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 char *usb_get_dev_path(DeviceState *dev);
static char *usb_get_fw_dev_path(DeviceState *qdev);

static struct BusInfo usb_bus_info = {
    .name      = "USB",
    .size      = sizeof(USBBus),
    .print_dev = usb_bus_dev_print,
    .get_dev_path = usb_get_dev_path,
    .get_fw_dev_path = usb_get_fw_dev_path,
    .props      = (Property[]) {
        DEFINE_PROP_STRING("port", USBDevice, port_path),
        DEFINE_PROP_END_OF_LIST()
    },
};
static int next_usb_bus = 0;
static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);

const VMStateDescription vmstate_usb_device = {
    .name = "USBDevice",
    .version_id = 1,
    .minimum_version_id = 1,
    .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, USBBusOps *ops, DeviceState *host)
{
    qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
    bus->ops = ops;
    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->product_desc, sizeof(dev->product_desc), info->product_desc);
    dev->info = info;
    dev->auto_attach = 1;
    QLIST_INIT(&dev->strings);
    rc = dev->info->init(dev);
    if (rc == 0 && dev->auto_attach)
        usb_device_attach(dev);
    return rc;
}

static int usb_qdev_exit(DeviceState *qdev)
{
    USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
    USBBus *bus = usb_bus_from_device(dev);

    if (dev->attached) {
        usb_device_detach(dev);
    }
    bus->ops->device_destroy(bus, 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);
    if (!dev) {
        hw_error("Failed to create USB device '%s'\n", name);
    }
    qdev_init_nofail(&dev->qdev);
    return dev;
}

void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
                       USBPortOps *ops, int speedmask)
{
    port->opaque = opaque;
    port->index = index;
    port->opaque = opaque;
    port->index = index;
    port->ops = ops;
    port->speedmask = speedmask;
    QTAILQ_INSERT_TAIL(&bus->free, port, next);
    bus->nfree++;
}

void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)
{
    if (upstream) {
        snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
                 upstream->path, portnr);
    } else {
        snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
    }
}

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->product_desc);
        return;
    }
    if (bus->nfree == 0) {
        fprintf(stderr, "Warning: tried to attach usb device %s to a bus with no free ports\n",
                dev->product_desc);
        return;
    }
    if (dev->port_path) {
        QTAILQ_FOREACH(port, &bus->free, next) {
            if (strcmp(port->path, dev->port_path) == 0) {
                break;
            }
        }
        if (port == NULL) {
            fprintf(stderr, "Warning: usb port %s (bus %s) not found\n",
                    dev->port_path, bus->qbus.name);
            return;
        }
    } else {
        port = QTAILQ_FIRST(&bus->free);
    }

    dev->attached++;
    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);

    if (bus->nfree == 1 && dev->port_path == NULL) {
        /* Create a new hub and chain it on
           (unless a physical port location is specified). */
        usb_create_simple(bus, "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->product_desc);
        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",
        [ 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 = DO_UPCAST(USBDevice, qdev, 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 = DO_UPCAST(USBDevice, qdev, qdev);
    return qemu_strdup(dev->port->path);
}

static char *usb_get_fw_dev_path(DeviceState *qdev)
{
    USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
    char *fw_path, *in;
    ssize_t pos = 0, fw_len;
    long nr;

    fw_len = 32 + strlen(dev->port->path) * 6;
    fw_path = qemu_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@%ld/", nr);
            in++;
        } else {
            /* the device itself */
            pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
                            qdev_fw_name(qdev), nr);
            break;
        }
    }
    return fw_path;
}

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, 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 */);
    DeviceInfo *info;
    USBDeviceInfo *usb;
    char driver[32];
    const char *params;
    int len;

    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 (info = device_info_list; info != NULL; info = info->next) {
        if (info->bus_info != &usb_bus_info)
            continue;
        usb = DO_UPCAST(USBDeviceInfo, qdev, info);
        if (usb->usbdevice_name == NULL)
            continue;
        if (strcmp(usb->usbdevice_name, driver) != 0)
            continue;
        break;
    }
    if (info == NULL) {
#if 0
        /* no error because some drivers are not converted (yet) */
        error_report("usbdevice %s not found", driver);
#endif
        return NULL;
    }

    if (!usb->usbdevice_init) {
        if (*params) {
            error_report("usbdevice %s accepts no params", driver);
            return NULL;
        }
        return usb_create_simple(bus, usb->qdev.name);
    }
    return usb->usbdevice_init(params);
}
Commit	Line	Data
806b6024 GH	1	#include "hw.h"
	2	#include "usb.h"
	3	#include "qdev.h"
a5d2f727 GH	4	#include "sysemu.h"
	5	#include "monitor.h"
	6
	7	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent);
c7a2196a GH	8
c7a2196a GH	9	static char usb_get_dev_path(DeviceState dev);
70d31cb2	10	static char usb_get_fw_dev_path(DeviceState qdev);
806b6024 GH	11
806b6024 GH	12	static struct BusInfo usb_bus_info = {
a5d2f727 GH	13	.name = "USB",
	14	.size = sizeof(USBBus),
	15	.print_dev = usb_bus_dev_print,
c7a2196a	16	.get_dev_path = usb_get_dev_path,
70d31cb2	17	.get_fw_dev_path = usb_get_fw_dev_path,
5f69076b GH	18	.props = (Property[]) {
	19	DEFINE_PROP_STRING("port", USBDevice, port_path),
	20	DEFINE_PROP_END_OF_LIST()
	21	},
806b6024 GH	22	};
806b6024 GH	23	static int next_usb_bus = 0;
72cf2d4f	24	static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
806b6024	25
c1ecb40a GH	26	const VMStateDescription vmstate_usb_device = {
	27	.name = "USBDevice",
	28	.version_id = 1,
	29	.minimum_version_id = 1,
	30	.fields = (VMStateField []) {
	31	VMSTATE_UINT8(addr, USBDevice),
	32	VMSTATE_INT32(state, USBDevice),
	33	VMSTATE_INT32(remote_wakeup, USBDevice),
	34	VMSTATE_INT32(setup_state, USBDevice),
	35	VMSTATE_INT32(setup_len, USBDevice),
	36	VMSTATE_INT32(setup_index, USBDevice),
	37	VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
	38	VMSTATE_END_OF_LIST(),
	39	}
	40	};
	41
07771f6f	42	void usb_bus_new(USBBus bus, USBBusOps ops, DeviceState *host)
806b6024	43	{
b2317837	44	qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
07771f6f	45	bus->ops = ops;
806b6024	46	bus->busnr = next_usb_bus++;
ef816d83	47	bus->qbus.allow_hotplug = 1; /* Yes, we can */
72cf2d4f BS	48	QTAILQ_INIT(&bus->free);
	49	QTAILQ_INIT(&bus->used);
	50	QTAILQ_INSERT_TAIL(&busses, bus, next);
806b6024 GH	51	}
	52
	53	USBBus *usb_bus_find(int busnr)
	54	{
	55	USBBus *bus;
	56
	57	if (-1 == busnr)
72cf2d4f BS	58	return QTAILQ_FIRST(&busses);
72cf2d4f BS	59	QTAILQ_FOREACH(bus, &busses, next) {
806b6024 GH	60	if (bus->busnr == busnr)
	61	return bus;
	62	}
	63	return NULL;
	64	}
	65
	66	static int usb_qdev_init(DeviceState qdev, DeviceInfo base)
	67	{
	68	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	69	USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base);
	70	int rc;
	71
06384698	72	pstrcpy(dev->product_desc, sizeof(dev->product_desc), info->product_desc);
806b6024	73	dev->info = info;
61e094c0	74	dev->auto_attach = 1;
132a3f55	75	QLIST_INIT(&dev->strings);
806b6024	76	rc = dev->info->init(dev);
61e094c0	77	if (rc == 0 && dev->auto_attach)
a5d2f727	78	usb_device_attach(dev);
806b6024 GH	79	return rc;
	80	}
	81
a8e662b5 GH	82	static int usb_qdev_exit(DeviceState *qdev)
	83	{
	84	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
07771f6f	85	USBBus *bus = usb_bus_from_device(dev);
a8e662b5	86
290a5c60 HG	87	if (dev->attached) {
	88	usb_device_detach(dev);
	89	}
07771f6f	90	bus->ops->device_destroy(bus, dev);
a8e662b5 GH	91	if (dev->info->handle_destroy) {
	92	dev->info->handle_destroy(dev);
	93	}
	94	return 0;
	95	}
	96
806b6024 GH	97	void usb_qdev_register(USBDeviceInfo *info)
	98	{
	99	info->qdev.bus_info = &usb_bus_info;
	100	info->qdev.init = usb_qdev_init;
ef816d83	101	info->qdev.unplug = qdev_simple_unplug_cb;
a8e662b5	102	info->qdev.exit = usb_qdev_exit;
806b6024 GH	103	qdev_register(&info->qdev);
	104	}
	105
	106	void usb_qdev_register_many(USBDeviceInfo *info)
	107	{
	108	while (info->qdev.name) {
	109	usb_qdev_register(info);
	110	info++;
	111	}
	112	}
	113
a5d2f727	114	USBDevice usb_create(USBBus bus, const char *name)
806b6024 GH	115	{
	116	DeviceState *dev;
	117
	118	#if 1
	119	/* temporary stopgap until all usb is properly qdev-ified */
	120	if (!bus) {
	121	bus = usb_bus_find(-1);
	122	if (!bus)
	123	return NULL;
	124	fprintf(stderr, "%s: no bus specified, using \"%s\" for \"%s\"\n",
	125	__FUNCTION__, bus->qbus.name, name);
	126	}
	127	#endif
	128
	129	dev = qdev_create(&bus->qbus, name);
806b6024 GH	130	return DO_UPCAST(USBDevice, qdev, dev);
806b6024 GH	131	}
a5d2f727 GH	132
	133	USBDevice usb_create_simple(USBBus bus, const char *name)
	134	{
	135	USBDevice *dev = usb_create(bus, name);
d44168ff PB	136	if (!dev) {
	137	hw_error("Failed to create USB device '%s'\n", name);
	138	}
e23a1b33	139	qdev_init_nofail(&dev->qdev);
a5d2f727 GH	140	return dev;
	141	}
	142
	143	void usb_register_port(USBBus bus, USBPort port, void *opaque, int index,
ace1318b	144	USBPortOps *ops, int speedmask)
a5d2f727 GH	145	{
	146	port->opaque = opaque;
	147	port->index = index;
0d86d2be GH	148	port->opaque = opaque;
	149	port->index = index;
	150	port->ops = ops;
843d4e0c	151	port->speedmask = speedmask;
72cf2d4f	152	QTAILQ_INSERT_TAIL(&bus->free, port, next);
a5d2f727 GH	153	bus->nfree++;
	154	}
	155
c7a2196a GH	156	void usb_port_location(USBPort downstream, USBPort upstream, int portnr)
	157	{
	158	if (upstream) {
	159	snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
	160	upstream->path, portnr);
	161	} else {
	162	snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
	163	}
	164	}
	165
a8e662b5 GH	166	void usb_unregister_port(USBBus bus, USBPort port)
	167	{
	168	if (port->dev)
	169	qdev_free(&port->dev->qdev);
	170	QTAILQ_REMOVE(&bus->free, port, next);
	171	bus->nfree--;
	172	}
	173
a5d2f727 GH	174	static void do_attach(USBDevice *dev)
	175	{
	176	USBBus *bus = usb_bus_from_device(dev);
	177	USBPort *port;
	178
	179	if (dev->attached) {
	180	fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
0fe6d12e	181	dev->product_desc);
a5d2f727 GH	182	return;
a5d2f727 GH	183	}
ee210d63 HG	184	if (bus->nfree == 0) {
	185	fprintf(stderr, "Warning: tried to attach usb device %s to a bus with no free ports\n",
	186	dev->product_desc);
	187	return;
	188	}
5f69076b GH	189	if (dev->port_path) {
	190	QTAILQ_FOREACH(port, &bus->free, next) {
	191	if (strcmp(port->path, dev->port_path) == 0) {
	192	break;
	193	}
	194	}
	195	if (port == NULL) {
	196	fprintf(stderr, "Warning: usb port %s (bus %s) not found\n",
	197	dev->port_path, bus->qbus.name);
	198	return;
	199	}
	200	} else {
	201	port = QTAILQ_FIRST(&bus->free);
	202	}
a5d2f727	203
5f69076b	204	dev->attached++;
72cf2d4f	205	QTAILQ_REMOVE(&bus->free, port, next);
a5d2f727 GH	206	bus->nfree--;
	207
	208	usb_attach(port, dev);
	209
72cf2d4f	210	QTAILQ_INSERT_TAIL(&bus->used, port, next);
a5d2f727 GH	211	bus->nused++;
	212	}
	213
	214	int usb_device_attach(USBDevice *dev)
	215	{
	216	USBBus *bus = usb_bus_from_device(dev);
a5d2f727	217
5f69076b GH	218	if (bus->nfree == 1 && dev->port_path == NULL) {
	219	/* Create a new hub and chain it on
	220	(unless a physical port location is specified). */
d4c4e6fd	221	usb_create_simple(bus, "usb-hub");
a5d2f727 GH	222	}
	223	do_attach(dev);
	224	return 0;
	225	}
	226
a8e662b5 GH	227	int usb_device_detach(USBDevice *dev)
	228	{
	229	USBBus *bus = usb_bus_from_device(dev);
	230	USBPort *port;
	231
	232	if (!dev->attached) {
	233	fprintf(stderr, "Warning: tried to detach unattached usb device %s\n",
0fe6d12e	234	dev->product_desc);
a8e662b5 GH	235	return -1;
	236	}
	237	dev->attached--;
	238
	239	QTAILQ_FOREACH(port, &bus->used, next) {
	240	if (port->dev == dev)
	241	break;
	242	}
	243	assert(port != NULL);
	244
	245	QTAILQ_REMOVE(&bus->used, port, next);
	246	bus->nused--;
	247
	248	usb_attach(port, NULL);
	249
	250	QTAILQ_INSERT_TAIL(&bus->free, port, next);
	251	bus->nfree++;
	252	return 0;
	253	}
	254
a5d2f727 GH	255	int usb_device_delete_addr(int busnr, int addr)
	256	{
	257	USBBus *bus;
	258	USBPort *port;
	259	USBDevice *dev;
	260
	261	bus = usb_bus_find(busnr);
	262	if (!bus)
	263	return -1;
	264
72cf2d4f	265	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	266	if (port->dev->addr == addr)
	267	break;
	268	}
	269	if (!port)
	270	return -1;
a5d2f727	271	dev = port->dev;
a5d2f727	272
a8e662b5	273	qdev_free(&dev->qdev);
a5d2f727 GH	274	return 0;
	275	}
	276
	277	static const char *usb_speed(unsigned int speed)
	278	{
	279	static const char *txt[] = {
	280	[ USB_SPEED_LOW ] = "1.5",
	281	[ USB_SPEED_FULL ] = "12",
	282	[ USB_SPEED_HIGH ] = "480",
290d26d2	283	[ USB_SPEED_SUPER ] = "5000",
a5d2f727 GH	284	};
	285	if (speed >= ARRAY_SIZE(txt))
	286	return "?";
	287	return txt[speed];
	288	}
	289
	290	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent)
	291	{
	292	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	293	USBBus *bus = usb_bus_from_device(dev);
	294
c7a2196a	295	monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
66a6593a	296	indent, "", bus->busnr, dev->addr,
c7a2196a	297	dev->port ? dev->port->path : "-",
0fe6d12e	298	usb_speed(dev->speed), dev->product_desc,
66a6593a	299	dev->attached ? ", attached" : "");
a5d2f727 GH	300	}
a5d2f727 GH	301
c7a2196a GH	302	static char usb_get_dev_path(DeviceState qdev)
	303	{
	304	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	305	return qemu_strdup(dev->port->path);
	306	}
	307
70d31cb2 GH	308	static char usb_get_fw_dev_path(DeviceState qdev)
	309	{
	310	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	311	char fw_path, in;
ea87e95f	312	ssize_t pos = 0, fw_len;
70d31cb2 GH	313	long nr;
70d31cb2 GH	314
ea87e95f BS	315	fw_len = 32 + strlen(dev->port->path) * 6;
ea87e95f BS	316	fw_path = qemu_malloc(fw_len);
70d31cb2	317	in = dev->port->path;
ea87e95f	318	while (fw_len - pos > 0) {
70d31cb2 GH	319	nr = strtol(in, &in, 10);
	320	if (in[0] == '.') {
	321	/* some hub between root port and device */
ea87e95f	322	pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
70d31cb2 GH	323	in++;
	324	} else {
	325	/* the device itself */
ea87e95f BS	326	pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
ea87e95f BS	327	qdev_fw_name(qdev), nr);
70d31cb2 GH	328	break;
	329	}
	330	}
	331	return fw_path;
	332	}
	333
a5d2f727 GH	334	void usb_info(Monitor *mon)
	335	{
	336	USBBus *bus;
	337	USBDevice *dev;
	338	USBPort *port;
	339
72cf2d4f	340	if (QTAILQ_EMPTY(&busses)) {
a5d2f727 GH	341	monitor_printf(mon, "USB support not enabled\n");
	342	return;
	343	}
	344
72cf2d4f BS	345	QTAILQ_FOREACH(bus, &busses, next) {
72cf2d4f BS	346	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	347	dev = port->dev;
	348	if (!dev)
	349	continue;
c7a2196a GH	350	monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
c7a2196a GH	351	bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
0fe6d12e	352	dev->product_desc);
a5d2f727 GH	353	}
	354	}
	355	}
	356
0958b4cc GH	357	/* handle legacy -usbdevice cmd line option */
	358	USBDevice usbdevice_create(const char cmdline)
	359	{
	360	USBBus bus = usb_bus_find(-1 / any */);
	361	DeviceInfo *info;
	362	USBDeviceInfo *usb;
702f3e0f JK	363	char driver[32];
702f3e0f JK	364	const char *params;
0958b4cc GH	365	int len;
	366
	367	params = strchr(cmdline,':');
	368	if (params) {
	369	params++;
	370	len = params - cmdline;
	371	if (len > sizeof(driver))
	372	len = sizeof(driver);
	373	pstrcpy(driver, len, cmdline);
	374	} else {
702f3e0f	375	params = "";
0958b4cc GH	376	pstrcpy(driver, sizeof(driver), cmdline);
	377	}
	378
	379	for (info = device_info_list; info != NULL; info = info->next) {
	380	if (info->bus_info != &usb_bus_info)
	381	continue;
	382	usb = DO_UPCAST(USBDeviceInfo, qdev, info);
	383	if (usb->usbdevice_name == NULL)
	384	continue;
	385	if (strcmp(usb->usbdevice_name, driver) != 0)
	386	continue;
	387	break;
	388	}
	389	if (info == NULL) {
	390	#if 0
	391	/* no error because some drivers are not converted (yet) */
1ecda02b	392	error_report("usbdevice %s not found", driver);
0958b4cc GH	393	#endif
	394	return NULL;
	395	}
	396
	397	if (!usb->usbdevice_init) {
98f22dc1	398	if (*params) {
1ecda02b	399	error_report("usbdevice %s accepts no params", driver);
0958b4cc GH	400	return NULL;
	401	}
	402	return usb_create_simple(bus, usb->qdev.name);
	403	}
	404	return usb->usbdevice_init(params);
	405	}