[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 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) {
        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);
    }
    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\"\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--;
}

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?)\n",
                         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\n", 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\n",
                     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);
806b6024 GH	12
806b6024 GH	13	static struct BusInfo usb_bus_info = {
a5d2f727 GH	14	.name = "USB",
	15	.size = sizeof(USBBus),
	16	.print_dev = usb_bus_dev_print,
c7a2196a	17	.get_dev_path = usb_get_dev_path,
70d31cb2	18	.get_fw_dev_path = usb_get_fw_dev_path,
5f69076b GH	19	.props = (Property[]) {
	20	DEFINE_PROP_STRING("port", USBDevice, port_path),
	21	DEFINE_PROP_END_OF_LIST()
	22	},
806b6024 GH	23	};
806b6024 GH	24	static int next_usb_bus = 0;
72cf2d4f	25	static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
806b6024	26
c1ecb40a GH	27	const VMStateDescription vmstate_usb_device = {
	28	.name = "USBDevice",
	29	.version_id = 1,
	30	.minimum_version_id = 1,
	31	.fields = (VMStateField []) {
	32	VMSTATE_UINT8(addr, USBDevice),
	33	VMSTATE_INT32(state, USBDevice),
	34	VMSTATE_INT32(remote_wakeup, USBDevice),
	35	VMSTATE_INT32(setup_state, USBDevice),
	36	VMSTATE_INT32(setup_len, USBDevice),
	37	VMSTATE_INT32(setup_index, USBDevice),
	38	VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
	39	VMSTATE_END_OF_LIST(),
	40	}
	41	};
	42
07771f6f	43	void usb_bus_new(USBBus bus, USBBusOps ops, DeviceState *host)
806b6024	44	{
b2317837	45	qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
07771f6f	46	bus->ops = ops;
806b6024	47	bus->busnr = next_usb_bus++;
ef816d83	48	bus->qbus.allow_hotplug = 1; /* Yes, we can */
72cf2d4f BS	49	QTAILQ_INIT(&bus->free);
	50	QTAILQ_INIT(&bus->used);
	51	QTAILQ_INSERT_TAIL(&busses, bus, next);
806b6024 GH	52	}
	53
	54	USBBus *usb_bus_find(int busnr)
	55	{
	56	USBBus *bus;
	57
	58	if (-1 == busnr)
72cf2d4f BS	59	return QTAILQ_FIRST(&busses);
72cf2d4f BS	60	QTAILQ_FOREACH(bus, &busses, next) {
806b6024 GH	61	if (bus->busnr == busnr)
	62	return bus;
	63	}
	64	return NULL;
	65	}
	66
	67	static int usb_qdev_init(DeviceState qdev, DeviceInfo base)
	68	{
	69	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	70	USBDeviceInfo *info = DO_UPCAST(USBDeviceInfo, qdev, base);
	71	int rc;
	72
06384698	73	pstrcpy(dev->product_desc, sizeof(dev->product_desc), info->product_desc);
806b6024	74	dev->info = info;
61e094c0	75	dev->auto_attach = 1;
132a3f55	76	QLIST_INIT(&dev->strings);
891fb2cd GH	77	rc = usb_claim_port(dev);
	78	if (rc == 0) {
	79	rc = dev->info->init(dev);
	80	}
	81	if (rc == 0 && dev->auto_attach) {
fa19bf83	82	rc = usb_device_attach(dev);
891fb2cd	83	}
806b6024 GH	84	return rc;
	85	}
	86
a8e662b5 GH	87	static int usb_qdev_exit(DeviceState *qdev)
	88	{
	89	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	90
290a5c60 HG	91	if (dev->attached) {
	92	usb_device_detach(dev);
	93	}
a8e662b5 GH	94	if (dev->info->handle_destroy) {
	95	dev->info->handle_destroy(dev);
	96	}
891fb2cd GH	97	if (dev->port) {
	98	usb_release_port(dev);
	99	}
a8e662b5 GH	100	return 0;
	101	}
	102
806b6024 GH	103	void usb_qdev_register(USBDeviceInfo *info)
	104	{
	105	info->qdev.bus_info = &usb_bus_info;
	106	info->qdev.init = usb_qdev_init;
ef816d83	107	info->qdev.unplug = qdev_simple_unplug_cb;
a8e662b5	108	info->qdev.exit = usb_qdev_exit;
806b6024 GH	109	qdev_register(&info->qdev);
	110	}
	111
	112	void usb_qdev_register_many(USBDeviceInfo *info)
	113	{
	114	while (info->qdev.name) {
	115	usb_qdev_register(info);
	116	info++;
	117	}
	118	}
	119
a5d2f727	120	USBDevice usb_create(USBBus bus, const char *name)
806b6024 GH	121	{
	122	DeviceState *dev;
	123
	124	#if 1
	125	/* temporary stopgap until all usb is properly qdev-ified */
	126	if (!bus) {
	127	bus = usb_bus_find(-1);
	128	if (!bus)
	129	return NULL;
fa19bf83	130	error_report("%s: no bus specified, using \"%s\" for \"%s\"\n",
806b6024 GH	131	__FUNCTION__, bus->qbus.name, name);
	132	}
	133	#endif
	134
	135	dev = qdev_create(&bus->qbus, name);
806b6024 GH	136	return DO_UPCAST(USBDevice, qdev, dev);
806b6024 GH	137	}
a5d2f727 GH	138
	139	USBDevice usb_create_simple(USBBus bus, const char *name)
	140	{
	141	USBDevice *dev = usb_create(bus, name);
d44168ff PB	142	if (!dev) {
	143	hw_error("Failed to create USB device '%s'\n", name);
	144	}
e23a1b33	145	qdev_init_nofail(&dev->qdev);
a5d2f727 GH	146	return dev;
	147	}
	148
090ac642 HG	149	static void usb_fill_port(USBPort port, void opaque, int index,
090ac642 HG	150	USBPortOps *ops, int speedmask)
a5d2f727	151	{
0d86d2be GH	152	port->opaque = opaque;
	153	port->index = index;
	154	port->ops = ops;
843d4e0c	155	port->speedmask = speedmask;
3631e6c8	156	usb_port_location(port, NULL, index + 1);
090ac642 HG	157	}
	158
	159	void usb_register_port(USBBus bus, USBPort port, void *opaque, int index,
	160	USBPortOps *ops, int speedmask)
	161	{
	162	usb_fill_port(port, opaque, index, ops, speedmask);
72cf2d4f	163	QTAILQ_INSERT_TAIL(&bus->free, port, next);
a5d2f727 GH	164	bus->nfree++;
	165	}
	166
ae60fea9 HG	167	int usb_register_companion(const char masterbus, USBPort ports[],
	168	uint32_t portcount, uint32_t firstport,
	169	void opaque, USBPortOps ops, int speedmask)
	170	{
	171	USBBus *bus;
	172	int i;
	173
	174	QTAILQ_FOREACH(bus, &busses, next) {
	175	if (strcmp(bus->qbus.name, masterbus) == 0) {
	176	break;
	177	}
	178	}
	179
	180	if (!bus \|\| !bus->ops->register_companion) {
	181	qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
	182	"an USB masterbus");
	183	if (bus) {
	184	error_printf_unless_qmp(
	185	"USB bus '%s' does not allow companion controllers\n",
	186	masterbus);
	187	}
	188	return -1;
	189	}
	190
	191	for (i = 0; i < portcount; i++) {
	192	usb_fill_port(ports[i], opaque, i, ops, speedmask);
	193	}
	194
	195	return bus->ops->register_companion(bus, ports, portcount, firstport);
	196	}
	197
c7a2196a GH	198	void usb_port_location(USBPort downstream, USBPort upstream, int portnr)
	199	{
	200	if (upstream) {
	201	snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
	202	upstream->path, portnr);
	203	} else {
	204	snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
	205	}
	206	}
	207
a8e662b5 GH	208	void usb_unregister_port(USBBus bus, USBPort port)
	209	{
	210	if (port->dev)
	211	qdev_free(&port->dev->qdev);
	212	QTAILQ_REMOVE(&bus->free, port, next);
	213	bus->nfree--;
	214	}
	215
891fb2cd	216	int usb_claim_port(USBDevice *dev)
a5d2f727 GH	217	{
	218	USBBus *bus = usb_bus_from_device(dev);
	219	USBPort *port;
	220
891fb2cd GH	221	assert(dev->port == NULL);
891fb2cd GH	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) {
891fb2cd GH	230	error_report("Error: usb port %s (bus %s) not found (in use?)\n",
891fb2cd GH	231	dev->port_path, bus->qbus.name);
fa19bf83	232	return -1;
5f69076b GH	233	}
5f69076b GH	234	} else {
891fb2cd GH	235	if (bus->nfree == 1 && strcmp(dev->qdev.info->name, "usb-hub") != 0) {
	236	/* Create a new hub and chain it on */
	237	usb_create_simple(bus, "usb-hub");
	238	}
	239	if (bus->nfree == 0) {
	240	error_report("Error: tried to attach usb device %s to a bus "
	241	"with no free ports\n", dev->product_desc);
	242	return -1;
	243	}
5f69076b GH	244	port = QTAILQ_FIRST(&bus->free);
5f69076b GH	245	}
891fb2cd	246	trace_usb_port_claim(bus->busnr, port->path);
a5d2f727	247
72cf2d4f	248	QTAILQ_REMOVE(&bus->free, port, next);
a5d2f727 GH	249	bus->nfree--;
a5d2f727 GH	250
891fb2cd GH	251	dev->port = port;
891fb2cd GH	252	port->dev = dev;
a5d2f727	253
72cf2d4f	254	QTAILQ_INSERT_TAIL(&bus->used, port, next);
a5d2f727	255	bus->nused++;
fa19bf83	256	return 0;
a5d2f727 GH	257	}
a5d2f727 GH	258
891fb2cd	259	void usb_release_port(USBDevice *dev)
a5d2f727 GH	260	{
a5d2f727 GH	261	USBBus *bus = usb_bus_from_device(dev);
891fb2cd	262	USBPort *port = dev->port;
a5d2f727	263
891fb2cd GH	264	assert(port != NULL);
	265	trace_usb_port_release(bus->busnr, port->path);
	266
	267	QTAILQ_REMOVE(&bus->used, port, next);
	268	bus->nused--;
	269
	270	dev->port = NULL;
	271	port->dev = NULL;
	272
	273	QTAILQ_INSERT_TAIL(&bus->free, port, next);
	274	bus->nfree++;
a5d2f727 GH	275	}
a5d2f727 GH	276
891fb2cd	277	int usb_device_attach(USBDevice *dev)
a8e662b5 GH	278	{
a8e662b5 GH	279	USBBus *bus = usb_bus_from_device(dev);
891fb2cd	280	USBPort *port = dev->port;
a8e662b5	281
891fb2cd GH	282	assert(port != NULL);
	283	assert(!dev->attached);
	284	trace_usb_port_attach(bus->busnr, port->path);
	285
	286	if (!(port->speedmask & dev->speedmask)) {
	287	error_report("Warning: speed mismatch trying to attach "
	288	"usb device %s to bus %s\n",
	289	dev->product_desc, bus->qbus.name);
a8e662b5 GH	290	return -1;
a8e662b5 GH	291	}
a8e662b5	292
891fb2cd GH	293	dev->attached++;
891fb2cd GH	294	usb_attach(port);
a8e662b5	295
891fb2cd GH	296	return 0;
	297	}
	298
	299	int usb_device_detach(USBDevice *dev)
	300	{
	301	USBBus *bus = usb_bus_from_device(dev);
	302	USBPort *port = dev->port;
a8e662b5	303
891fb2cd GH	304	assert(port != NULL);
	305	assert(dev->attached);
	306	trace_usb_port_detach(bus->busnr, port->path);
a8e662b5	307
891fb2cd GH	308	usb_detach(port);
891fb2cd GH	309	dev->attached--;
a8e662b5 GH	310	return 0;
	311	}
	312
a5d2f727 GH	313	int usb_device_delete_addr(int busnr, int addr)
	314	{
	315	USBBus *bus;
	316	USBPort *port;
	317	USBDevice *dev;
	318
	319	bus = usb_bus_find(busnr);
	320	if (!bus)
	321	return -1;
	322
72cf2d4f	323	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	324	if (port->dev->addr == addr)
	325	break;
	326	}
	327	if (!port)
	328	return -1;
a5d2f727	329	dev = port->dev;
a5d2f727	330
a8e662b5	331	qdev_free(&dev->qdev);
a5d2f727 GH	332	return 0;
	333	}
	334
	335	static const char *usb_speed(unsigned int speed)
	336	{
	337	static const char *txt[] = {
	338	[ USB_SPEED_LOW ] = "1.5",
	339	[ USB_SPEED_FULL ] = "12",
	340	[ USB_SPEED_HIGH ] = "480",
290d26d2	341	[ USB_SPEED_SUPER ] = "5000",
a5d2f727 GH	342	};
	343	if (speed >= ARRAY_SIZE(txt))
	344	return "?";
	345	return txt[speed];
	346	}
	347
	348	static void usb_bus_dev_print(Monitor mon, DeviceState qdev, int indent)
	349	{
	350	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	351	USBBus *bus = usb_bus_from_device(dev);
	352
c7a2196a	353	monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
66a6593a	354	indent, "", bus->busnr, dev->addr,
c7a2196a	355	dev->port ? dev->port->path : "-",
0fe6d12e	356	usb_speed(dev->speed), dev->product_desc,
66a6593a	357	dev->attached ? ", attached" : "");
a5d2f727 GH	358	}
a5d2f727 GH	359
c7a2196a GH	360	static char usb_get_dev_path(DeviceState qdev)
	361	{
	362	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
7267c094	363	return g_strdup(dev->port->path);
c7a2196a GH	364	}
c7a2196a GH	365
70d31cb2 GH	366	static char usb_get_fw_dev_path(DeviceState qdev)
	367	{
	368	USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
	369	char fw_path, in;
ea87e95f	370	ssize_t pos = 0, fw_len;
70d31cb2 GH	371	long nr;
70d31cb2 GH	372
ea87e95f	373	fw_len = 32 + strlen(dev->port->path) * 6;
7267c094	374	fw_path = g_malloc(fw_len);
70d31cb2	375	in = dev->port->path;
ea87e95f	376	while (fw_len - pos > 0) {
70d31cb2 GH	377	nr = strtol(in, &in, 10);
	378	if (in[0] == '.') {
	379	/* some hub between root port and device */
ea87e95f	380	pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
70d31cb2 GH	381	in++;
	382	} else {
	383	/* the device itself */
ea87e95f BS	384	pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
ea87e95f BS	385	qdev_fw_name(qdev), nr);
70d31cb2 GH	386	break;
	387	}
	388	}
	389	return fw_path;
	390	}
	391
a5d2f727 GH	392	void usb_info(Monitor *mon)
	393	{
	394	USBBus *bus;
	395	USBDevice *dev;
	396	USBPort *port;
	397
72cf2d4f	398	if (QTAILQ_EMPTY(&busses)) {
a5d2f727 GH	399	monitor_printf(mon, "USB support not enabled\n");
	400	return;
	401	}
	402
72cf2d4f BS	403	QTAILQ_FOREACH(bus, &busses, next) {
72cf2d4f BS	404	QTAILQ_FOREACH(port, &bus->used, next) {
a5d2f727 GH	405	dev = port->dev;
	406	if (!dev)
	407	continue;
c7a2196a GH	408	monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
c7a2196a GH	409	bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
0fe6d12e	410	dev->product_desc);
a5d2f727 GH	411	}
	412	}
	413	}
	414
0958b4cc GH	415	/* handle legacy -usbdevice cmd line option */
	416	USBDevice usbdevice_create(const char cmdline)
	417	{
	418	USBBus bus = usb_bus_find(-1 / any */);
	419	DeviceInfo *info;
	420	USBDeviceInfo *usb;
702f3e0f JK	421	char driver[32];
702f3e0f JK	422	const char *params;
0958b4cc GH	423	int len;
	424
	425	params = strchr(cmdline,':');
	426	if (params) {
	427	params++;
	428	len = params - cmdline;
	429	if (len > sizeof(driver))
	430	len = sizeof(driver);
	431	pstrcpy(driver, len, cmdline);
	432	} else {
702f3e0f	433	params = "";
0958b4cc GH	434	pstrcpy(driver, sizeof(driver), cmdline);
	435	}
	436
	437	for (info = device_info_list; info != NULL; info = info->next) {
	438	if (info->bus_info != &usb_bus_info)
	439	continue;
	440	usb = DO_UPCAST(USBDeviceInfo, qdev, info);
	441	if (usb->usbdevice_name == NULL)
	442	continue;
	443	if (strcmp(usb->usbdevice_name, driver) != 0)
	444	continue;
	445	break;
	446	}
	447	if (info == NULL) {
	448	#if 0
	449	/* no error because some drivers are not converted (yet) */
1ecda02b	450	error_report("usbdevice %s not found", driver);
0958b4cc GH	451	#endif
	452	return NULL;
	453	}
	454
	455	if (!usb->usbdevice_init) {
98f22dc1	456	if (*params) {
1ecda02b	457	error_report("usbdevice %s accepts no params", driver);
0958b4cc GH	458	return NULL;
	459	}
	460	return usb_create_simple(bus, usb->qdev.name);
	461	}
	462	return usb->usbdevice_init(params);
	463	}