[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)
        rc = usb_device_attach(dev);
    return rc;
}

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);
    }
    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\"\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;
}

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--;
}

static int do_attach(USBDevice *dev)
{
    USBBus *bus = usb_bus_from_device(dev);
    USBPort *port;

    if (dev->attached) {
        error_report("Error: tried to attach usb device %s twice\n",
                dev->product_desc);
        return -1;
    }
    if (bus->nfree == 0) {
        error_report("Error: tried to attach usb device %s to a bus with no free ports\n",
                dev->product_desc);
        return -1;
    }
    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\n",
                    dev->port_path, bus->qbus.name);
            return -1;
        }
    } else {
        port = QTAILQ_FIRST(&bus->free);
    }
    if (!(port->speedmask & dev->speedmask)) {
        error_report("Warning: speed mismatch trying to attach usb device %s to bus %s\n",
                dev->product_desc, bus->qbus.name);
        return -1;
    }

    dev->attached++;
    QTAILQ_REMOVE(&bus->free, port, next);
    bus->nfree--;

    usb_attach(port, dev);

    QTAILQ_INSERT_TAIL(&bus->used, port, next);
    bus->nused++;

    return 0;
}

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");
    }
    return do_attach(dev);
}

int usb_device_detach(USBDevice *dev)
{
    USBBus *bus = usb_bus_from_device(dev);
    USBPort *port;

    if (!dev->attached) {
        error_report("Error: 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)
fa19bf83	78	rc = 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);
	85
290a5c60 HG	86	if (dev->attached) {
	87	usb_device_detach(dev);
	88	}
a8e662b5 GH	89	if (dev->info->handle_destroy) {
	90	dev->info->handle_destroy(dev);
	91	}
	92	return 0;
	93	}
	94
806b6024 GH	95	void usb_qdev_register(USBDeviceInfo *info)
	96	{
	97	info->qdev.bus_info = &usb_bus_info;
	98	info->qdev.init = usb_qdev_init;
ef816d83	99	info->qdev.unplug = qdev_simple_unplug_cb;
a8e662b5	100	info->qdev.exit = usb_qdev_exit;
806b6024 GH	101	qdev_register(&info->qdev);
	102	}
	103
	104	void usb_qdev_register_many(USBDeviceInfo *info)
	105	{
	106	while (info->qdev.name) {
	107	usb_qdev_register(info);
	108	info++;
	109	}
	110	}
	111
a5d2f727	112	USBDevice usb_create(USBBus bus, const char *name)
806b6024 GH	113	{
	114	DeviceState *dev;
	115
	116	#if 1
	117	/* temporary stopgap until all usb is properly qdev-ified */
	118	if (!bus) {
	119	bus = usb_bus_find(-1);
	120	if (!bus)
	121	return NULL;
fa19bf83	122	error_report("%s: no bus specified, using \"%s\" for \"%s\"\n",
806b6024 GH	123	__FUNCTION__, bus->qbus.name, name);
	124	}
	125	#endif
	126
	127	dev = qdev_create(&bus->qbus, name);
806b6024 GH	128	return DO_UPCAST(USBDevice, qdev, dev);
806b6024 GH	129	}
a5d2f727 GH	130
	131	USBDevice usb_create_simple(USBBus bus, const char *name)
	132	{
	133	USBDevice *dev = usb_create(bus, name);
d44168ff PB	134	if (!dev) {
	135	hw_error("Failed to create USB device '%s'\n", name);
	136	}
e23a1b33	137	qdev_init_nofail(&dev->qdev);
a5d2f727 GH	138	return dev;
	139	}
	140
090ac642 HG	141	static void usb_fill_port(USBPort port, void opaque, int index,
090ac642 HG	142	USBPortOps *ops, int speedmask)
a5d2f727	143	{
0d86d2be GH	144	port->opaque = opaque;
	145	port->index = index;
	146	port->ops = ops;
843d4e0c	147	port->speedmask = speedmask;
3631e6c8	148	usb_port_location(port, NULL, index + 1);
090ac642 HG	149	}
	150
	151	void usb_register_port(USBBus bus, USBPort port, void *opaque, int index,
	152	USBPortOps *ops, int speedmask)
	153	{
	154	usb_fill_port(port, opaque, index, ops, speedmask);
72cf2d4f	155	QTAILQ_INSERT_TAIL(&bus->free, port, next);
a5d2f727 GH	156	bus->nfree++;
	157	}
	158
ae60fea9 HG	159	int usb_register_companion(const char masterbus, USBPort ports[],
	160	uint32_t portcount, uint32_t firstport,
	161	void opaque, USBPortOps ops, int speedmask)
	162	{
	163	USBBus *bus;
	164	int i;
	165
	166	QTAILQ_FOREACH(bus, &busses, next) {
	167	if (strcmp(bus->qbus.name, masterbus) == 0) {
	168	break;
	169	}
	170	}
	171
	172	if (!bus \|\| !bus->ops->register_companion) {
	173	qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
	174	"an USB masterbus");
	175	if (bus) {
	176	error_printf_unless_qmp(
	177	"USB bus '%s' does not allow companion controllers\n",
	178	masterbus);
	179	}
	180	return -1;
	181	}
	182
	183	for (i = 0; i < portcount; i++) {
	184	usb_fill_port(ports[i], opaque, i, ops, speedmask);
	185	}
	186
	187	return bus->ops->register_companion(bus, ports, portcount, firstport);
	188	}
	189
c7a2196a GH	190	void usb_port_location(USBPort downstream, USBPort upstream, int portnr)
	191	{
	192	if (upstream) {
	193	snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
	194	upstream->path, portnr);
	195	} else {
	196	snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
	197	}
	198	}
	199
a8e662b5 GH	200	void usb_unregister_port(USBBus bus, USBPort port)
	201	{
	202	if (port->dev)
	203	qdev_free(&port->dev->qdev);
	204	QTAILQ_REMOVE(&bus->free, port, next);
	205	bus->nfree--;
	206	}
	207
fa19bf83	208	static int do_attach(USBDevice *dev)
a5d2f727 GH	209	{
	210	USBBus *bus = usb_bus_from_device(dev);
	211	USBPort *port;
	212
	213	if (dev->attached) {
fa19bf83	214	error_report("Error: tried to attach usb device %s twice\n",
0fe6d12e	215	dev->product_desc);
fa19bf83	216	return -1;
a5d2f727	217	}
ee210d63	218	if (bus->nfree == 0) {
fa19bf83	219	error_report("Error: tried to attach usb device %s to a bus with no free ports\n",
ee210d63	220	dev->product_desc);
fa19bf83	221	return -1;
ee210d63	222	}
5f69076b GH	223	if (dev->port_path) {
	224	QTAILQ_FOREACH(port, &bus->free, next) {
	225	if (strcmp(port->path, dev->port_path) == 0) {
	226	break;
	227	}
	228	}
	229	if (port == NULL) {
fa19bf83	230	error_report("Error: usb port %s (bus %s) not found\n",
5f69076b	231	dev->port_path, bus->qbus.name);
fa19bf83	232	return -1;
5f69076b GH	233	}
	234	} else {
	235	port = QTAILQ_FIRST(&bus->free);
	236	}
bf5547f5 HG	237	if (!(port->speedmask & dev->speedmask)) {
	238	error_report("Warning: speed mismatch trying to attach usb device %s to bus %s\n",
	239	dev->product_desc, bus->qbus.name);
	240	return -1;
	241	}
a5d2f727	242
5f69076b	243	dev->attached++;
72cf2d4f	244	QTAILQ_REMOVE(&bus->free, port, next);
a5d2f727 GH	245	bus->nfree--;
	246
	247	usb_attach(port, dev);
	248
72cf2d4f	249	QTAILQ_INSERT_TAIL(&bus->used, port, next);
a5d2f727	250	bus->nused++;
fa19bf83 HG	251
fa19bf83 HG	252	return 0;
a5d2f727 GH	253	}
	254
	255	int usb_device_attach(USBDevice *dev)
	256	{
	257	USBBus *bus = usb_bus_from_device(dev);
a5d2f727	258
5f69076b GH	259	if (bus->nfree == 1 && dev->port_path == NULL) {
	260	/* Create a new hub and chain it on
	261	(unless a physical port location is specified). */
d4c4e6fd	262	usb_create_simple(bus, "usb-hub");
a5d2f727	263	}
fa19bf83	264	return do_attach(dev);
a5d2f727 GH	265	}
a5d2f727 GH	266
a8e662b5 GH	267	int usb_device_detach(USBDevice *dev)
	268	{
	269	USBBus *bus = usb_bus_from_device(dev);
	270	USBPort *port;
	271
	272	if (!dev->attached) {
fa19bf83	273	error_report("Error: tried to detach unattached usb device %s\n",
0fe6d12e	274	dev->product_desc);
a8e662b5 GH	275	return -1;
	276	}
	277	dev->attached--;
	278
	279	QTAILQ_FOREACH(port, &bus->used, next) {
	280	if (port->dev == dev)
	281	break;
	282	}
	283	assert(port != NULL);
	284
	285	QTAILQ_REMOVE(&bus->used, port, next);
	286	bus->nused--;
	287
	288	usb_attach(port, NULL);
	289
	290	QTAILQ_INSERT_TAIL(&bus->free, port, next);
	291	bus->nfree++;
	292	return 0;
	293	}
	294
a5d2f727 GH	295	int usb_device_delete_addr(int busnr, int addr)
	296	{
	297	USBBus *bus;
	298	USBPort *port;
	299	USBDevice *dev;
	300
	301	bus = usb_bus_find(busnr);
	302	if (!bus)
	303	return -1;
	304
72cf2d4f	305	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	306	if (port->dev->addr == addr)
	307	break;
	308	}
	309	if (!port)
	310	return -1;
a5d2f727	311	dev = port->dev;
a5d2f727	312
a8e662b5	313	qdev_free(&dev->qdev);
a5d2f727 GH	314	return 0;
	315	}
	316
	317	static const char *usb_speed(unsigned int speed)
	318	{
	319	static const char *txt[] = {
	320	[ USB_SPEED_LOW ] = "1.5",
	321	[ USB_SPEED_FULL ] = "12",
	322	[ USB_SPEED_HIGH ] = "480",
290d26d2	323	[ USB_SPEED_SUPER ] = "5000",
a5d2f727 GH	324	};
	325	if (speed >= ARRAY_SIZE(txt))
	326	return "?";
	327	return txt[speed];
	328	}
	329
	330	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent)
	331	{
	332	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	333	USBBus *bus = usb_bus_from_device(dev);
	334
c7a2196a	335	monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
66a6593a	336	indent, "", bus->busnr, dev->addr,
c7a2196a	337	dev->port ? dev->port->path : "-",
0fe6d12e	338	usb_speed(dev->speed), dev->product_desc,
66a6593a	339	dev->attached ? ", attached" : "");
a5d2f727 GH	340	}
a5d2f727 GH	341
c7a2196a GH	342	static char usb_get_dev_path(DeviceState qdev)
	343	{
	344	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	345	return qemu_strdup(dev->port->path);
	346	}
	347
70d31cb2 GH	348	static char usb_get_fw_dev_path(DeviceState qdev)
	349	{
	350	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	351	char fw_path, in;
ea87e95f	352	ssize_t pos = 0, fw_len;
70d31cb2 GH	353	long nr;
70d31cb2 GH	354
ea87e95f BS	355	fw_len = 32 + strlen(dev->port->path) * 6;
ea87e95f BS	356	fw_path = qemu_malloc(fw_len);
70d31cb2	357	in = dev->port->path;
ea87e95f	358	while (fw_len - pos > 0) {
70d31cb2 GH	359	nr = strtol(in, &in, 10);
	360	if (in[0] == '.') {
	361	/* some hub between root port and device */
ea87e95f	362	pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
70d31cb2 GH	363	in++;
	364	} else {
	365	/* the device itself */
ea87e95f BS	366	pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
ea87e95f BS	367	qdev_fw_name(qdev), nr);
70d31cb2 GH	368	break;
	369	}
	370	}
	371	return fw_path;
	372	}
	373
a5d2f727 GH	374	void usb_info(Monitor *mon)
	375	{
	376	USBBus *bus;
	377	USBDevice *dev;
	378	USBPort *port;
	379
72cf2d4f	380	if (QTAILQ_EMPTY(&busses)) {
a5d2f727 GH	381	monitor_printf(mon, "USB support not enabled\n");
	382	return;
	383	}
	384
72cf2d4f BS	385	QTAILQ_FOREACH(bus, &busses, next) {
72cf2d4f BS	386	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	387	dev = port->dev;
	388	if (!dev)
	389	continue;
c7a2196a GH	390	monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
c7a2196a GH	391	bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
0fe6d12e	392	dev->product_desc);
a5d2f727 GH	393	}
	394	}
	395	}
	396
0958b4cc GH	397	/* handle legacy -usbdevice cmd line option */
	398	USBDevice usbdevice_create(const char cmdline)
	399	{
	400	USBBus bus = usb_bus_find(-1 / any */);
	401	DeviceInfo *info;
	402	USBDeviceInfo *usb;
702f3e0f JK	403	char driver[32];
702f3e0f JK	404	const char *params;
0958b4cc GH	405	int len;
	406
	407	params = strchr(cmdline,':');
	408	if (params) {
	409	params++;
	410	len = params - cmdline;
	411	if (len > sizeof(driver))
	412	len = sizeof(driver);
	413	pstrcpy(driver, len, cmdline);
	414	} else {
702f3e0f	415	params = "";
0958b4cc GH	416	pstrcpy(driver, sizeof(driver), cmdline);
	417	}
	418
	419	for (info = device_info_list; info != NULL; info = info->next) {
	420	if (info->bus_info != &usb_bus_info)
	421	continue;
	422	usb = DO_UPCAST(USBDeviceInfo, qdev, info);
	423	if (usb->usbdevice_name == NULL)
	424	continue;
	425	if (strcmp(usb->usbdevice_name, driver) != 0)
	426	continue;
	427	break;
	428	}
	429	if (info == NULL) {
	430	#if 0
	431	/* no error because some drivers are not converted (yet) */
1ecda02b	432	error_report("usbdevice %s not found", driver);
0958b4cc GH	433	#endif
	434	return NULL;
	435	}
	436
	437	if (!usb->usbdevice_init) {
98f22dc1	438	if (*params) {
1ecda02b	439	error_report("usbdevice %s accepts no params", driver);
0958b4cc GH	440	return NULL;
	441	}
	442	return usb_create_simple(bus, usb->qdev.name);
	443	}
	444	return usb->usbdevice_init(params);
	445	}