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

#include "hw.h"
#include "usb.h"
#include "qdev.h"
#include "sysemu.h"
#include "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 int usb_qdev_exit(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 = usb_claim_port(dev);
    if (rc != 0) {
        return rc;
    }
    rc = dev->info->init(dev);
    if (rc != 0) {
        usb_release_port(dev);
        return rc;
    }
    if (dev->auto_attach) {
        rc = usb_device_attach(dev);
        if (rc != 0) {
            usb_qdev_exit(qdev);
            return rc;
        }
    }
    return 0;
}

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

    if (dev->attached) {
        usb_device_detach(dev);
    }
    if (dev->info->handle_destroy) {
        dev->info->handle_destroy(dev);
    }
    if (dev->port) {
        usb_release_port(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;
        error_report("%s: no bus specified, using \"%s\" for \"%s\"",
                __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);
    int rc;

    if (!dev) {
        error_report("Failed to create USB device '%s'", name);
        return NULL;
    }
    rc = qdev_init(&dev->qdev);
    if (rc < 0) {
        error_report("Failed to initialize USB device '%s'", name);
        return NULL;
    }
    return dev;
}

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++;
}

int usb_register_companion(const char *masterbus, USBPort *ports[],
                           uint32_t portcount, uint32_t firstport,
                           void *opaque, USBPortOps *ops, int speedmask)
{
    USBBus *bus;
    int i;

    QTAILQ_FOREACH(bus, &busses, next) {
        if (strcmp(bus->qbus.name, masterbus) == 0) {
            break;
        }
    }

    if (!bus || !bus->ops->register_companion) {
        qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
                      "an USB masterbus");
        if (bus) {
            error_printf_unless_qmp(
                "USB bus '%s' does not allow companion controllers\n",
                masterbus);
        }
        return -1;
    }

    for (i = 0; i < portcount; i++) {
        usb_fill_port(ports[i], opaque, i, ops, speedmask);
    }

    return bus->ops->register_companion(bus, ports, portcount, firstport);
}

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--;
}

int usb_claim_port(USBDevice *dev)
{
    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_report("Error: usb port %s (bus %s) not found (in use?)",
                         dev->port_path, bus->qbus.name);
            return -1;
        }
    } else {
        if (bus->nfree == 1 && strcmp(dev->qdev.info->name, "usb-hub") != 0) {
            /* Create a new hub and chain it on */
            usb_create_simple(bus, "usb-hub");
        }
        if (bus->nfree == 0) {
            error_report("Error: tried to attach usb device %s to a bus "
                         "with no free ports", dev->product_desc);
            return -1;
        }
        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++;
    return 0;
}

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++;
}

int usb_device_attach(USBDevice *dev)
{
    USBBus *bus = usb_bus_from_device(dev);
    USBPort *port = dev->port;

    assert(port != NULL);
    assert(!dev->attached);
    trace_usb_port_attach(bus->busnr, port->path);

    if (!(port->speedmask & dev->speedmask)) {
        error_report("Warning: speed mismatch trying to attach "
                     "usb device %s to bus %s",
                     dev->product_desc, bus->qbus.name);
        return -1;
    }

    dev->attached++;
    usb_attach(port);

    return 0;
}

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;

    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 g_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 = 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@%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"
a5d2f727 GH	5	#include "monitor.h"
891fb2cd	6	#include "trace.h"
a5d2f727 GH	7
a5d2f727 GH	8	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent);
c7a2196a GH	9
c7a2196a GH	10	static char usb_get_dev_path(DeviceState dev);
70d31cb2	11	static char usb_get_fw_dev_path(DeviceState qdev);
f462141f	12	static int usb_qdev_exit(DeviceState *qdev);
806b6024 GH	13
806b6024 GH	14	static struct BusInfo usb_bus_info = {
a5d2f727 GH	15	.name = "USB",
	16	.size = sizeof(USBBus),
	17	.print_dev = usb_bus_dev_print,
c7a2196a	18	.get_dev_path = usb_get_dev_path,
70d31cb2	19	.get_fw_dev_path = usb_get_fw_dev_path,
5f69076b GH	20	.props = (Property[]) {
	21	DEFINE_PROP_STRING("port", USBDevice, port_path),
	22	DEFINE_PROP_END_OF_LIST()
	23	},
806b6024 GH	24	};
806b6024 GH	25	static int next_usb_bus = 0;
72cf2d4f	26	static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
806b6024	27
c1ecb40a GH	28	const VMStateDescription vmstate_usb_device = {
	29	.name = "USBDevice",
	30	.version_id = 1,
	31	.minimum_version_id = 1,
	32	.fields = (VMStateField []) {
	33	VMSTATE_UINT8(addr, USBDevice),
	34	VMSTATE_INT32(state, USBDevice),
	35	VMSTATE_INT32(remote_wakeup, USBDevice),
	36	VMSTATE_INT32(setup_state, USBDevice),
	37	VMSTATE_INT32(setup_len, USBDevice),
	38	VMSTATE_INT32(setup_index, USBDevice),
	39	VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
	40	VMSTATE_END_OF_LIST(),
	41	}
	42	};
	43
07771f6f	44	void usb_bus_new(USBBus bus, USBBusOps ops, DeviceState *host)
806b6024	45	{
b2317837	46	qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
07771f6f	47	bus->ops = ops;
806b6024	48	bus->busnr = next_usb_bus++;
ef816d83	49	bus->qbus.allow_hotplug = 1; /* Yes, we can */
72cf2d4f BS	50	QTAILQ_INIT(&bus->free);
	51	QTAILQ_INIT(&bus->used);
	52	QTAILQ_INSERT_TAIL(&busses, bus, next);
806b6024 GH	53	}
	54
	55	USBBus *usb_bus_find(int busnr)
	56	{
	57	USBBus *bus;
	58
	59	if (-1 == busnr)
72cf2d4f BS	60	return QTAILQ_FIRST(&busses);
72cf2d4f BS	61	QTAILQ_FOREACH(bus, &busses, next) {
806b6024 GH	62	if (bus->busnr == busnr)
	63	return bus;
	64	}
	65	return NULL;
	66	}
	67
	68	static int usb_qdev_init(DeviceState qdev, DeviceInfo base)
	69	{
	70	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	71	USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base);
	72	int rc;
	73
06384698	74	pstrcpy(dev->product_desc, sizeof(dev->product_desc), info->product_desc);
806b6024	75	dev->info = info;
61e094c0	76	dev->auto_attach = 1;
132a3f55	77	QLIST_INIT(&dev->strings);
891fb2cd	78	rc = usb_claim_port(dev);
f462141f	79	if (rc != 0) {
db3a5ed7	80	return rc;
891fb2cd	81	}
f462141f GH	82	rc = dev->info->init(dev);
f462141f GH	83	if (rc != 0) {
db3a5ed7 SH	84	usb_release_port(dev);
db3a5ed7 SH	85	return rc;
f462141f GH	86	}
f462141f GH	87	if (dev->auto_attach) {
fa19bf83	88	rc = usb_device_attach(dev);
f462141f	89	if (rc != 0) {
db3a5ed7 SH	90	usb_qdev_exit(qdev);
db3a5ed7 SH	91	return rc;
f462141f	92	}
891fb2cd	93	}
f462141f	94	return 0;
806b6024 GH	95	}
806b6024 GH	96
a8e662b5 GH	97	static int usb_qdev_exit(DeviceState *qdev)
	98	{
	99	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	100
290a5c60 HG	101	if (dev->attached) {
	102	usb_device_detach(dev);
	103	}
a8e662b5 GH	104	if (dev->info->handle_destroy) {
	105	dev->info->handle_destroy(dev);
	106	}
891fb2cd GH	107	if (dev->port) {
	108	usb_release_port(dev);
	109	}
a8e662b5 GH	110	return 0;
	111	}
	112
806b6024 GH	113	void usb_qdev_register(USBDeviceInfo *info)
	114	{
	115	info->qdev.bus_info = &usb_bus_info;
	116	info->qdev.init = usb_qdev_init;
ef816d83	117	info->qdev.unplug = qdev_simple_unplug_cb;
a8e662b5	118	info->qdev.exit = usb_qdev_exit;
806b6024 GH	119	qdev_register(&info->qdev);
	120	}
	121
	122	void usb_qdev_register_many(USBDeviceInfo *info)
	123	{
	124	while (info->qdev.name) {
	125	usb_qdev_register(info);
	126	info++;
	127	}
	128	}
	129
a5d2f727	130	USBDevice usb_create(USBBus bus, const char *name)
806b6024 GH	131	{
	132	DeviceState *dev;
	133
	134	#if 1
	135	/* temporary stopgap until all usb is properly qdev-ified */
	136	if (!bus) {
	137	bus = usb_bus_find(-1);
	138	if (!bus)
	139	return NULL;
be62a2eb	140	error_report("%s: no bus specified, using \"%s\" for \"%s\"",
806b6024 GH	141	__FUNCTION__, bus->qbus.name, name);
	142	}
	143	#endif
	144
	145	dev = qdev_create(&bus->qbus, name);
806b6024 GH	146	return DO_UPCAST(USBDevice, qdev, dev);
806b6024 GH	147	}
a5d2f727 GH	148
	149	USBDevice usb_create_simple(USBBus bus, const char *name)
	150	{
	151	USBDevice *dev = usb_create(bus, name);
2af2a1b8 GH	152	int rc;
2af2a1b8 GH	153
d44168ff	154	if (!dev) {
be62a2eb	155	error_report("Failed to create USB device '%s'", name);
2af2a1b8 GH	156	return NULL;
	157	}
	158	rc = qdev_init(&dev->qdev);
	159	if (rc < 0) {
be62a2eb	160	error_report("Failed to initialize USB device '%s'", name);
2af2a1b8	161	return NULL;
d44168ff	162	}
a5d2f727 GH	163	return dev;
	164	}
	165
090ac642 HG	166	static void usb_fill_port(USBPort port, void opaque, int index,
090ac642 HG	167	USBPortOps *ops, int speedmask)
a5d2f727	168	{
0d86d2be GH	169	port->opaque = opaque;
	170	port->index = index;
	171	port->ops = ops;
843d4e0c	172	port->speedmask = speedmask;
3631e6c8	173	usb_port_location(port, NULL, index + 1);
090ac642 HG	174	}
	175
	176	void usb_register_port(USBBus bus, USBPort port, void *opaque, int index,
	177	USBPortOps *ops, int speedmask)
	178	{
	179	usb_fill_port(port, opaque, index, ops, speedmask);
72cf2d4f	180	QTAILQ_INSERT_TAIL(&bus->free, port, next);
a5d2f727 GH	181	bus->nfree++;
	182	}
	183
ae60fea9 HG	184	int usb_register_companion(const char masterbus, USBPort ports[],
	185	uint32_t portcount, uint32_t firstport,
	186	void opaque, USBPortOps ops, int speedmask)
	187	{
	188	USBBus *bus;
	189	int i;
	190
	191	QTAILQ_FOREACH(bus, &busses, next) {
	192	if (strcmp(bus->qbus.name, masterbus) == 0) {
	193	break;
	194	}
	195	}
	196
	197	if (!bus \|\| !bus->ops->register_companion) {
	198	qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
	199	"an USB masterbus");
	200	if (bus) {
	201	error_printf_unless_qmp(
	202	"USB bus '%s' does not allow companion controllers\n",
	203	masterbus);
	204	}
	205	return -1;
	206	}
	207
	208	for (i = 0; i < portcount; i++) {
	209	usb_fill_port(ports[i], opaque, i, ops, speedmask);
	210	}
	211
	212	return bus->ops->register_companion(bus, ports, portcount, firstport);
	213	}
	214
c7a2196a GH	215	void usb_port_location(USBPort downstream, USBPort upstream, int portnr)
	216	{
	217	if (upstream) {
	218	snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
	219	upstream->path, portnr);
	220	} else {
	221	snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
	222	}
	223	}
	224
a8e662b5 GH	225	void usb_unregister_port(USBBus bus, USBPort port)
	226	{
	227	if (port->dev)
	228	qdev_free(&port->dev->qdev);
	229	QTAILQ_REMOVE(&bus->free, port, next);
	230	bus->nfree--;
	231	}
	232
891fb2cd	233	int usb_claim_port(USBDevice *dev)
a5d2f727 GH	234	{
	235	USBBus *bus = usb_bus_from_device(dev);
	236	USBPort *port;
	237
891fb2cd GH	238	assert(dev->port == NULL);
891fb2cd GH	239
5f69076b GH	240	if (dev->port_path) {
	241	QTAILQ_FOREACH(port, &bus->free, next) {
	242	if (strcmp(port->path, dev->port_path) == 0) {
	243	break;
	244	}
	245	}
	246	if (port == NULL) {
be62a2eb	247	error_report("Error: usb port %s (bus %s) not found (in use?)",
891fb2cd	248	dev->port_path, bus->qbus.name);
fa19bf83	249	return -1;
5f69076b GH	250	}
5f69076b GH	251	} else {
891fb2cd GH	252	if (bus->nfree == 1 && strcmp(dev->qdev.info->name, "usb-hub") != 0) {
	253	/* Create a new hub and chain it on */
	254	usb_create_simple(bus, "usb-hub");
	255	}
	256	if (bus->nfree == 0) {
	257	error_report("Error: tried to attach usb device %s to a bus "
be62a2eb	258	"with no free ports", dev->product_desc);
891fb2cd GH	259	return -1;
891fb2cd GH	260	}
5f69076b GH	261	port = QTAILQ_FIRST(&bus->free);
5f69076b GH	262	}
891fb2cd	263	trace_usb_port_claim(bus->busnr, port->path);
a5d2f727	264
72cf2d4f	265	QTAILQ_REMOVE(&bus->free, port, next);
a5d2f727 GH	266	bus->nfree--;
a5d2f727 GH	267
891fb2cd GH	268	dev->port = port;
891fb2cd GH	269	port->dev = dev;
a5d2f727	270
72cf2d4f	271	QTAILQ_INSERT_TAIL(&bus->used, port, next);
a5d2f727	272	bus->nused++;
fa19bf83	273	return 0;
a5d2f727 GH	274	}
a5d2f727 GH	275
891fb2cd	276	void usb_release_port(USBDevice *dev)
a5d2f727 GH	277	{
a5d2f727 GH	278	USBBus *bus = usb_bus_from_device(dev);
891fb2cd	279	USBPort *port = dev->port;
a5d2f727	280
891fb2cd GH	281	assert(port != NULL);
	282	trace_usb_port_release(bus->busnr, port->path);
	283
	284	QTAILQ_REMOVE(&bus->used, port, next);
	285	bus->nused--;
	286
	287	dev->port = NULL;
	288	port->dev = NULL;
	289
	290	QTAILQ_INSERT_TAIL(&bus->free, port, next);
	291	bus->nfree++;
a5d2f727 GH	292	}
a5d2f727 GH	293
891fb2cd	294	int usb_device_attach(USBDevice *dev)
a8e662b5 GH	295	{
a8e662b5 GH	296	USBBus *bus = usb_bus_from_device(dev);
891fb2cd	297	USBPort *port = dev->port;
a8e662b5	298
891fb2cd GH	299	assert(port != NULL);
	300	assert(!dev->attached);
	301	trace_usb_port_attach(bus->busnr, port->path);
	302
	303	if (!(port->speedmask & dev->speedmask)) {
	304	error_report("Warning: speed mismatch trying to attach "
be62a2eb	305	"usb device %s to bus %s",
891fb2cd	306	dev->product_desc, bus->qbus.name);
a8e662b5 GH	307	return -1;
a8e662b5 GH	308	}
a8e662b5	309
891fb2cd GH	310	dev->attached++;
891fb2cd GH	311	usb_attach(port);
a8e662b5	312
891fb2cd GH	313	return 0;
	314	}
	315
	316	int usb_device_detach(USBDevice *dev)
	317	{
	318	USBBus *bus = usb_bus_from_device(dev);
	319	USBPort *port = dev->port;
a8e662b5	320
891fb2cd GH	321	assert(port != NULL);
	322	assert(dev->attached);
	323	trace_usb_port_detach(bus->busnr, port->path);
a8e662b5	324
891fb2cd GH	325	usb_detach(port);
891fb2cd GH	326	dev->attached--;
a8e662b5 GH	327	return 0;
	328	}
	329
a5d2f727 GH	330	int usb_device_delete_addr(int busnr, int addr)
	331	{
	332	USBBus *bus;
	333	USBPort *port;
	334	USBDevice *dev;
	335
	336	bus = usb_bus_find(busnr);
	337	if (!bus)
	338	return -1;
	339
72cf2d4f	340	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	341	if (port->dev->addr == addr)
	342	break;
	343	}
	344	if (!port)
	345	return -1;
a5d2f727	346	dev = port->dev;
a5d2f727	347
a8e662b5	348	qdev_free(&dev->qdev);
a5d2f727 GH	349	return 0;
	350	}
	351
	352	static const char *usb_speed(unsigned int speed)
	353	{
	354	static const char *txt[] = {
	355	[ USB_SPEED_LOW ] = "1.5",
	356	[ USB_SPEED_FULL ] = "12",
	357	[ USB_SPEED_HIGH ] = "480",
290d26d2	358	[ USB_SPEED_SUPER ] = "5000",
a5d2f727 GH	359	};
	360	if (speed >= ARRAY_SIZE(txt))
	361	return "?";
	362	return txt[speed];
	363	}
	364
	365	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent)
	366	{
	367	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	368	USBBus *bus = usb_bus_from_device(dev);
	369
c7a2196a	370	monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
66a6593a	371	indent, "", bus->busnr, dev->addr,
c7a2196a	372	dev->port ? dev->port->path : "-",
0fe6d12e	373	usb_speed(dev->speed), dev->product_desc,
66a6593a	374	dev->attached ? ", attached" : "");
a5d2f727 GH	375	}
a5d2f727 GH	376
c7a2196a GH	377	static char usb_get_dev_path(DeviceState qdev)
	378	{
	379	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
7267c094	380	return g_strdup(dev->port->path);
c7a2196a GH	381	}
c7a2196a GH	382
70d31cb2 GH	383	static char usb_get_fw_dev_path(DeviceState qdev)
	384	{
	385	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	386	char fw_path, in;
ea87e95f	387	ssize_t pos = 0, fw_len;
70d31cb2 GH	388	long nr;
70d31cb2 GH	389
ea87e95f	390	fw_len = 32 + strlen(dev->port->path) * 6;
7267c094	391	fw_path = g_malloc(fw_len);
70d31cb2	392	in = dev->port->path;
ea87e95f	393	while (fw_len - pos > 0) {
70d31cb2 GH	394	nr = strtol(in, &in, 10);
	395	if (in[0] == '.') {
	396	/* some hub between root port and device */
ea87e95f	397	pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
70d31cb2 GH	398	in++;
	399	} else {
	400	/* the device itself */
ea87e95f BS	401	pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
ea87e95f BS	402	qdev_fw_name(qdev), nr);
70d31cb2 GH	403	break;
	404	}
	405	}
	406	return fw_path;
	407	}
	408
a5d2f727 GH	409	void usb_info(Monitor *mon)
	410	{
	411	USBBus *bus;
	412	USBDevice *dev;
	413	USBPort *port;
	414
72cf2d4f	415	if (QTAILQ_EMPTY(&busses)) {
a5d2f727 GH	416	monitor_printf(mon, "USB support not enabled\n");
	417	return;
	418	}
	419
72cf2d4f BS	420	QTAILQ_FOREACH(bus, &busses, next) {
72cf2d4f BS	421	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	422	dev = port->dev;
	423	if (!dev)
	424	continue;
c7a2196a GH	425	monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
c7a2196a GH	426	bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
0fe6d12e	427	dev->product_desc);
a5d2f727 GH	428	}
	429	}
	430	}
	431
0958b4cc GH	432	/* handle legacy -usbdevice cmd line option */
	433	USBDevice usbdevice_create(const char cmdline)
	434	{
	435	USBBus bus = usb_bus_find(-1 / any */);
	436	DeviceInfo *info;
	437	USBDeviceInfo *usb;
702f3e0f JK	438	char driver[32];
702f3e0f JK	439	const char *params;
0958b4cc GH	440	int len;
	441
	442	params = strchr(cmdline,':');
	443	if (params) {
	444	params++;
	445	len = params - cmdline;
	446	if (len > sizeof(driver))
	447	len = sizeof(driver);
	448	pstrcpy(driver, len, cmdline);
	449	} else {
702f3e0f	450	params = "";
0958b4cc GH	451	pstrcpy(driver, sizeof(driver), cmdline);
	452	}
	453
	454	for (info = device_info_list; info != NULL; info = info->next) {
	455	if (info->bus_info != &usb_bus_info)
	456	continue;
	457	usb = DO_UPCAST(USBDeviceInfo, qdev, info);
	458	if (usb->usbdevice_name == NULL)
	459	continue;
	460	if (strcmp(usb->usbdevice_name, driver) != 0)
	461	continue;
	462	break;
	463	}
	464	if (info == NULL) {
	465	#if 0
	466	/* no error because some drivers are not converted (yet) */
1ecda02b	467	error_report("usbdevice %s not found", driver);
0958b4cc GH	468	#endif
	469	return NULL;
	470	}
	471
	472	if (!usb->usbdevice_init) {
98f22dc1	473	if (*params) {
1ecda02b	474	error_report("usbdevice %s accepts no params", driver);
0958b4cc GH	475	return NULL;
	476	}
	477	return usb_create_simple(bus, usb->qdev.name);
	478	}
	479	return usb->usbdevice_init(params);
	480	}