/*------------------------------------------------------------------------*
* ugen_get_iface_driver
*
* This function generates an USB interface description for userland.
*
* Returns:
* 0: Success
* Else: Failure
*------------------------------------------------------------------------*/
static int
ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
{
struct usb_device *udev = f->udev;
struct usb_interface *iface;
const char *ptr;
const char *desc;
unsigned int len;
unsigned int maxlen;
char buf[128];
int error;
DPRINTFN(6, "\n");
if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
/* userland pointer should not be zero */
return (EINVAL);
}
iface = usbd_get_iface(udev, ugd->ugd_iface_index);
if ((iface == NULL) || (iface->idesc == NULL)) {
/* invalid interface index */
return (EINVAL);
}
/* read out device nameunit string, if any */
if ((iface->subdev != NULL) &&
device_is_attached(iface->subdev) &&
(ptr = device_get_nameunit(iface->subdev)) &&
(desc = device_get_desc(iface->subdev))) {
/* print description */
snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
/* range checks */
maxlen = ugd->ugd_maxlen - 1;
len = strlen(buf);
if (len > maxlen)
len = maxlen;
/* update actual length, including terminating zero */
ugd->ugd_actlen = len + 1;
/* copy out interface description */
error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
} else {
/* zero length string is default */
error = copyout("", ugd->ugd_data, 1);
}
return (error);
}
static int
ugen_get_iface_desc(struct usb_fifo *f,
struct usb_interface_descriptor *idesc)
{
struct usb_interface *iface;
iface = usbd_get_iface(f->udev, f->iface_index);
if (iface && iface->idesc) {
*idesc = *(iface->idesc);
} else {
return (EIO);
}
return (0);
}
static void
usie_autoinst(void *arg, struct usb_device *udev,
struct usb_attach_arg *uaa)
{
struct usb_interface *iface;
struct usb_interface_descriptor *id;
struct usb_device_request req;
int err;
if (uaa->dev_state != UAA_DEV_READY)
return;
iface = usbd_get_iface(udev, 0);
if (iface == NULL)
return;
id = iface->idesc;
if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
return;
if (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa) != 0)
return; /* no device match */
if (bootverbose) {
DPRINTF("Ejecting %s %s\n",
usb_get_manufacturer(udev),
usb_get_product(udev));
}
req.bmRequestType = UT_VENDOR;
req.bRequest = UR_SET_INTERFACE;
USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
USETW(req.wIndex, UHF_PORT_CONNECTION);
USETW(req.wLength, 0);
/* at this moment there is no mutex */
err = usbd_do_request_flags(udev, NULL, &req,
NULL, 0, NULL, 250 /* ms */ );
/* success, mark the udev as disappearing */
if (err == 0)
uaa->dev_state = UAA_DEV_EJECTING;
}
static void
uhso_test_autoinst(void *arg, struct usb_device *udev,
struct usb_attach_arg *uaa)
{
struct usb_interface *iface;
struct usb_interface_descriptor *id;
if (uaa->dev_state != UAA_DEV_READY || !uhso_autoswitch)
return;
iface = usbd_get_iface(udev, 0);
if (iface == NULL)
return;
id = iface->idesc;
if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
return;
if (usbd_lookup_id_by_uaa(uhso_devs, sizeof(uhso_devs), uaa))
return; /* no device match */
if (usb_msc_eject(udev, 0, MSC_EJECT_REZERO) == 0) {
/* success, mark the udev as disappearing */
uaa->dev_state = UAA_DEV_EJECTING;
}
}
static int
ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
{
union {
struct usb_interface_descriptor *idesc;
struct usb_alt_interface *ai;
struct usb_device_descriptor *ddesc;
struct usb_config_descriptor *cdesc;
struct usb_device_stats *stat;
struct usb_fs_init *pinit;
struct usb_fs_uninit *puninit;
uint32_t *ptime;
void *addr;
int *pint;
} u;
struct usb_device_descriptor *dtemp;
struct usb_config_descriptor *ctemp;
struct usb_interface *iface;
int error = 0;
uint8_t n;
u.addr = addr;
DPRINTFN(6, "cmd=0x%08lx\n", cmd);
switch (cmd) {
case USB_DISCOVER:
usb_needs_explore_all();
break;
case USB_SETDEBUG:
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
usb_debug = *(int *)addr;
break;
case USB_GET_CONFIG:
*(int *)addr = f->udev->curr_config_index;
break;
case USB_SET_CONFIG:
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
error = ugen_set_config(f, *(int *)addr);
break;
case USB_GET_ALTINTERFACE:
iface = usbd_get_iface(f->udev,
u.ai->uai_interface_index);
if (iface && iface->idesc) {
u.ai->uai_alt_index = iface->alt_index;
} else {
error = EINVAL;
}
break;
case USB_SET_ALTINTERFACE:
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
error = ugen_set_interface(f,
u.ai->uai_interface_index, u.ai->uai_alt_index);
break;
case USB_GET_DEVICE_DESC:
dtemp = usbd_get_device_descriptor(f->udev);
if (!dtemp) {
error = EIO;
break;
}
*u.ddesc = *dtemp;
break;
case USB_GET_CONFIG_DESC:
ctemp = usbd_get_config_descriptor(f->udev);
if (!ctemp) {
error = EIO;
break;
}
*u.cdesc = *ctemp;
break;
case USB_GET_FULL_DESC:
error = ugen_get_cdesc(f, addr);
break;
case USB_GET_STRING_DESC:
error = ugen_get_sdesc(f, addr);
break;
case USB_GET_IFACE_DRIVER:
error = ugen_get_iface_driver(f, addr);
break;
case USB_REQUEST:
case USB_DO_REQUEST:
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
error = ugen_do_request(f, addr);
break;
case USB_DEVICEINFO:
case USB_GET_DEVICEINFO:
error = usb_gen_fill_deviceinfo(f, addr);
break;
case USB_DEVICESTATS:
for (n = 0; n != 4; n++) {
u.stat->uds_requests_fail[n] =
f->udev->bus->stats_err.uds_requests[n];
u.stat->uds_requests_ok[n] =
f->udev->bus->stats_ok.uds_requests[n];
}
break;
case USB_DEVICEENUMERATE:
error = ugen_re_enumerate(f);
break;
case USB_GET_PLUGTIME:
*u.ptime = f->udev->plugtime;
break;
case USB_CLAIM_INTERFACE:
case USB_RELEASE_INTERFACE:
/* TODO */
break;
case USB_IFACE_DRIVER_ACTIVE:
/* TODO */
*u.pint = 0;
break;
case USB_IFACE_DRIVER_DETACH:
/* TODO */
error = priv_check(curthread, PRIV_DRIVER);
if (error) {
break;
}
error = EINVAL;
break;
case USB_SET_POWER_MODE:
error = ugen_set_power_mode(f, *u.pint);
break;
case USB_GET_POWER_MODE:
*u.pint = ugen_get_power_mode(f);
break;
case USB_SET_PORT_ENABLE:
error = ugen_do_port_feature(f,
*u.pint, 1, UHF_PORT_ENABLE);
break;
case USB_SET_PORT_DISABLE:
error = ugen_do_port_feature(f,
*u.pint, 0, UHF_PORT_ENABLE);
break;
case USB_FS_INIT:
/* verify input parameters */
if (u.pinit->pEndpoints == NULL) {
error = EINVAL;
break;
}
if (u.pinit->ep_index_max > 127) {
error = EINVAL;
break;
}
if (u.pinit->ep_index_max == 0) {
error = EINVAL;
break;
}
if (f->fs_xfer != NULL) {
error = EBUSY;
break;
}
if (f->dev_ep_index != 0) {
error = EINVAL;
break;
}
if (ugen_fifo_in_use(f, fflags)) {
error = EBUSY;
break;
}
error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
if (error) {
break;
}
f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) *
u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
if (f->fs_xfer == NULL) {
usb_fifo_free_buffer(f);
error = ENOMEM;
break;
}
f->fs_ep_max = u.pinit->ep_index_max;
f->fs_ep_ptr = u.pinit->pEndpoints;
break;
case USB_FS_UNINIT:
if (u.puninit->dummy != 0) {
error = EINVAL;
break;
}
error = ugen_fs_uninit(f);
break;
default:
mtx_lock(f->priv_mtx);
error = ugen_iface_ioctl(f, cmd, addr, fflags);
mtx_unlock(f->priv_mtx);
break;
}
DPRINTFN(6, "error=%d\n", error);
return (error);
}
/*------------------------------------------------------------------------*
* usb_handle_iface_request
*
* Returns:
* 0: Success
* Else: Failure
*------------------------------------------------------------------------*/
static usb_error_t
usb_handle_iface_request(struct usb_xfer *xfer,
void **ppdata, uint16_t *plen,
struct usb_device_request req, uint16_t off, uint8_t state)
{
struct usb_interface *iface;
struct usb_interface *iface_parent; /* parent interface */
struct usb_device *udev = xfer->xroot->udev;
int error;
uint8_t iface_index;
uint8_t temp_state;
if ((req.bmRequestType & 0x1F) == UT_INTERFACE) {
iface_index = req.wIndex[0]; /* unicast */
} else {
iface_index = 0; /* broadcast */
}
/*
* We need to protect against other threads doing probe and
* attach:
*/
USB_XFER_UNLOCK(xfer);
usbd_enum_lock(udev);
error = ENXIO;
tr_repeat:
iface = usbd_get_iface(udev, iface_index);
if ((iface == NULL) ||
(iface->idesc == NULL)) {
/* end of interfaces non-existing interface */
goto tr_stalled;
}
/* set initial state */
temp_state = state;
/* forward request to interface, if any */
if ((error != 0) &&
(error != ENOTTY) &&
(iface->subdev != NULL) &&
device_is_attached(iface->subdev)) {
#if 0
DEVMETHOD(usb_handle_request, NULL); /* dummy */
#endif
error = USB_HANDLE_REQUEST(iface->subdev,
&req, ppdata, plen,
off, &temp_state);
}
iface_parent = usbd_get_iface(udev, iface->parent_iface_index);
if ((iface_parent == NULL) ||
(iface_parent->idesc == NULL)) {
/* non-existing interface */
iface_parent = NULL;
}
/* forward request to parent interface, if any */
if ((error != 0) &&
(error != ENOTTY) &&
(iface_parent != NULL) &&
(iface_parent->subdev != NULL) &&
((req.bmRequestType & 0x1F) == UT_INTERFACE) &&
(iface_parent->subdev != iface->subdev) &&
device_is_attached(iface_parent->subdev)) {
error = USB_HANDLE_REQUEST(iface_parent->subdev,
&req, ppdata, plen, off, &temp_state);
}
if (error == 0) {
/* negativly adjust pointer and length */
*ppdata = ((uint8_t *)(*ppdata)) - off;
*plen += off;
if ((state == USB_HR_NOT_COMPLETE) &&
(temp_state == USB_HR_COMPLETE_OK))
goto tr_short;
else
goto tr_valid;
} else if (error == ENOTTY) {
goto tr_stalled;
}
if ((req.bmRequestType & 0x1F) != UT_INTERFACE) {
iface_index++; /* iterate */
goto tr_repeat;
}
if (state != USB_HR_NOT_COMPLETE) {
/* we are complete */
goto tr_valid;
}
switch (req.bmRequestType) {
case UT_WRITE_INTERFACE:
switch (req.bRequest) {
case UR_SET_INTERFACE:
/*
* We assume that the endpoints are the same
* accross the alternate settings.
*
* Reset the endpoints, because re-attaching
* only a part of the device is not possible.
*/
error = usb_check_alt_setting(udev,
iface, req.wValue[0]);
if (error) {
DPRINTF("alt setting does not exist %s\n",
usbd_errstr(error));
goto tr_stalled;
}
error = usb_reset_iface_endpoints(udev, iface_index);
if (error) {
DPRINTF("alt setting failed %s\n",
usbd_errstr(error));
goto tr_stalled;
}
/* update the current alternate setting */
iface->alt_index = req.wValue[0];
break;
default:
goto tr_stalled;
}
break;
case UT_READ_INTERFACE:
switch (req.bRequest) {
case UR_GET_INTERFACE:
*ppdata = &iface->alt_index;
*plen = 1;
break;
default:
goto tr_stalled;
}
break;
default:
goto tr_stalled;
}
tr_valid:
usbd_enum_unlock(udev);
USB_XFER_LOCK(xfer);
return (0);
tr_short:
usbd_enum_unlock(udev);
USB_XFER_LOCK(xfer);
return (USB_ERR_SHORT_XFER);
tr_stalled:
usbd_enum_unlock(udev);
USB_XFER_LOCK(xfer);
return (USB_ERR_STALLED);
}
/*
* Probes an interface for its particular capabilities and attaches if
* it's a supported interface.
*/
static int
uhso_probe_iface(struct uhso_softc *sc, int index,
int (*probe)(struct usb_device *, int))
{
struct usb_interface *iface;
int type, error;
UHSO_DPRINTF(1, "Probing for interface %d, probe_func=%p\n", index, probe);
type = probe(sc->sc_udev, index);
UHSO_DPRINTF(1, "Probe result %x\n", type);
if (type <= 0)
return (ENXIO);
sc->sc_type = type;
iface = usbd_get_iface(sc->sc_udev, index);
if (UHSO_IFACE_PORT_TYPE(type) == UHSO_PORT_TYPE_NETWORK) {
error = uhso_attach_ifnet(sc, iface, type);
if (error) {
UHSO_DPRINTF(1, "uhso_attach_ifnet failed");
return (ENXIO);
}
/*
* If there is an additional interrupt endpoint on this
* interface then we most likely have a multiplexed serial port
* available.
*/
if (iface->idesc->bNumEndpoints < 3) {
sc->sc_type = UHSO_IFACE_SPEC(
UHSO_IFACE_USB_TYPE(type) & ~UHSO_IF_MUX,
UHSO_IFACE_PORT(type) & ~UHSO_PORT_SERIAL,
UHSO_IFACE_PORT_TYPE(type));
return (0);
}
UHSO_DPRINTF(1, "Trying to attach mux. serial\n");
error = uhso_attach_muxserial(sc, iface, type);
if (error == 0 && sc->sc_ttys > 0) {
error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
sc->sc_ttys, sc, &uhso_ucom_callback, &sc->sc_mtx);
if (error) {
device_printf(sc->sc_dev, "ucom_attach failed\n");
return (ENXIO);
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
mtx_lock(&sc->sc_mtx);
usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
mtx_unlock(&sc->sc_mtx);
}
} else if ((UHSO_IFACE_USB_TYPE(type) & UHSO_IF_BULK) &&
UHSO_IFACE_PORT(type) & UHSO_PORT_SERIAL) {
error = uhso_attach_bulkserial(sc, iface, type);
if (error)
return (ENXIO);
error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
sc->sc_ttys, sc, &uhso_ucom_callback, &sc->sc_mtx);
if (error) {
device_printf(sc->sc_dev, "ucom_attach failed\n");
return (ENXIO);
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
}
else {
UHSO_DPRINTF(0, "Unknown type %x\n", type);
return (ENXIO);
}
return (0);
}
static int
usie_attach(device_t self)
{
struct usie_softc *sc = device_get_softc(self);
struct usb_attach_arg *uaa = device_get_ivars(self);
struct ifnet *ifp;
struct usb_interface *iface;
struct usb_interface_descriptor *id;
struct usb_device_request req;
int err;
uint16_t fwattr;
uint8_t iface_index;
uint8_t ifidx;
uint8_t start;
device_set_usb_desc(self);
sc->sc_udev = uaa->device;
sc->sc_dev = self;
mtx_init(&sc->sc_mtx, "usie", MTX_NETWORK_LOCK, MTX_DEF);
TASK_INIT(&sc->sc_if_status_task, 0, usie_if_status_cb, sc);
TASK_INIT(&sc->sc_if_sync_task, 0, usie_if_sync_cb, sc);
usb_callout_init_mtx(&sc->sc_if_sync_ch, &sc->sc_mtx, 0);
mtx_lock(&sc->sc_mtx);
/* set power mode to D0 */
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = USIE_POWER;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
if (usie_do_request(sc, &req, NULL)) {
mtx_unlock(&sc->sc_mtx);
goto detach;
}
/* read fw attr */
fwattr = 0;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = USIE_FW_ATTR;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(fwattr));
if (usie_do_request(sc, &req, &fwattr)) {
mtx_unlock(&sc->sc_mtx);
goto detach;
}
mtx_unlock(&sc->sc_mtx);
/* check DHCP supports */
DPRINTF("fwattr=%x\n", fwattr);
if (!(fwattr & USIE_FW_DHCP)) {
device_printf(self, "DHCP is not supported. A firmware upgrade might be needed.\n");
}
/* find available interfaces */
sc->sc_nucom = 0;
for (ifidx = 0; ifidx < USIE_IFACE_MAX; ifidx++) {
iface = usbd_get_iface(uaa->device, ifidx);
if (iface == NULL)
break;
id = usbd_get_interface_descriptor(iface);
if ((id == NULL) || (id->bInterfaceClass != UICLASS_VENDOR))
continue;
/* setup Direct IP transfer */
if (id->bInterfaceNumber >= 7 && id->bNumEndpoints == 3) {
sc->sc_if_ifnum = id->bInterfaceNumber;
iface_index = ifidx;
DPRINTF("ifnum=%d, ifidx=%d\n",
sc->sc_if_ifnum, ifidx);
err = usbd_transfer_setup(uaa->device,
&iface_index, sc->sc_if_xfer, usie_if_config,
USIE_IF_N_XFER, sc, &sc->sc_mtx);
if (err == 0)
continue;
device_printf(self,
"could not allocate USB transfers on "
"iface_index=%d, err=%s\n",
iface_index, usbd_errstr(err));
goto detach;
}
/* setup ucom */
if (sc->sc_nucom >= USIE_UCOM_MAX)
continue;
usbd_set_parent_iface(uaa->device, ifidx,
uaa->info.bIfaceIndex);
DPRINTF("NumEndpoints=%d bInterfaceNumber=%d\n",
id->bNumEndpoints, id->bInterfaceNumber);
if (id->bNumEndpoints == 2) {
sc->sc_uc_xfer[sc->sc_nucom][0] = NULL;
start = 1;
} else
start = 0;
err = usbd_transfer_setup(uaa->device, &ifidx,
sc->sc_uc_xfer[sc->sc_nucom] + start,
usie_uc_config + start, USIE_UC_N_XFER - start,
&sc->sc_ucom[sc->sc_nucom], &sc->sc_mtx);
if (err != 0) {
DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(err));
continue;
}
mtx_lock(&sc->sc_mtx);
for (; start < USIE_UC_N_XFER; start++)
usbd_xfer_set_stall(sc->sc_uc_xfer[sc->sc_nucom][start]);
mtx_unlock(&sc->sc_mtx);
sc->sc_uc_ifnum[sc->sc_nucom] = id->bInterfaceNumber;
sc->sc_nucom++; /* found a port */
}
if (sc->sc_nucom == 0) {
device_printf(self, "no comports found\n");
goto detach;
}
err = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
sc->sc_nucom, sc, &usie_uc_callback, &sc->sc_mtx);
if (err != 0) {
DPRINTF("ucom_attach failed\n");
goto detach;
}
DPRINTF("Found %d interfaces.\n", sc->sc_nucom);
/* setup ifnet (Direct IP) */
sc->sc_ifp = ifp = if_alloc(IFT_OTHER);
if (ifp == NULL) {
device_printf(self, "Could not allocate a network interface\n");
goto detach;
}
if_initname(ifp, "usie", device_get_unit(self));
ifp->if_softc = sc;
ifp->if_mtu = USIE_MTU_MAX;
ifp->if_flags |= IFF_NOARP;
ifp->if_init = usie_if_init;
ifp->if_ioctl = usie_if_ioctl;
ifp->if_start = usie_if_start;
ifp->if_output = usie_if_output;
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
IFQ_SET_READY(&ifp->if_snd);
if_attach(ifp);
bpfattach(ifp, DLT_RAW, 0);
if (fwattr & USIE_PM_AUTO) {
usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE);
DPRINTF("enabling automatic suspend and resume\n");
} else {
usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON);
DPRINTF("USB power is always ON\n");
}
DPRINTF("device attached\n");
return (0);
detach:
usie_detach(self);
return (ENOMEM);
}
static int
cdce_attach(device_t dev)
{
struct cdce_softc *sc = device_get_softc(dev);
struct usb_ether *ue = &sc->sc_ue;
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct usb_interface *iface;
const struct usb_cdc_union_descriptor *ud;
const struct usb_interface_descriptor *id;
const struct usb_cdc_ethernet_descriptor *ued;
const struct usb_config *pcfg;
int error;
uint8_t i;
uint8_t data_iface_no;
char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */
sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
sc->sc_ue.ue_udev = uaa->device;
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
ud = usbd_find_descriptor
(uaa->device, NULL, uaa->info.bIfaceIndex,
UDESC_CS_INTERFACE, 0 - 1, UDESCSUB_CDC_UNION, 0 - 1);
if ((ud == NULL) || (ud->bLength < sizeof(*ud)) ||
(sc->sc_flags & CDCE_FLAG_NO_UNION)) {
DPRINTFN(1, "No union descriptor!\n");
sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex;
sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
goto alloc_transfers;
}
data_iface_no = ud->bSlaveInterface[0];
for (i = 0;; i++) {
iface = usbd_get_iface(uaa->device, i);
if (iface) {
id = usbd_get_interface_descriptor(iface);
if (id && (id->bInterfaceNumber == data_iface_no)) {
sc->sc_ifaces_index[0] = i;
sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
break;
}
} else {
device_printf(dev, "no data interface found\n");
goto detach;
}
}
/*
* <quote>
*
* The Data Class interface of a networking device shall have
* a minimum of two interface settings. The first setting
* (the default interface setting) includes no endpoints and
* therefore no networking traffic is exchanged whenever the
* default interface setting is selected. One or more
* additional interface settings are used for normal
* operation, and therefore each includes a pair of endpoints
* (one IN, and one OUT) to exchange network traffic. Select
* an alternate interface setting to initialize the network
* aspects of the device and to enable the exchange of
* network traffic.
*
* </quote>
*
* Some devices, most notably cable modems, include interface
* settings that have no IN or OUT endpoint, therefore loop
* through the list of all available interface settings
* looking for one with both IN and OUT endpoints.
*/
alloc_transfers:
pcfg = cdce_config; /* Default Configuration */
for (i = 0; i != 32; i++) {
error = usbd_set_alt_interface_index(uaa->device,
sc->sc_ifaces_index[0], i);
if (error)
break;
#if CDCE_HAVE_NCM
if ((i == 0) && (cdce_ncm_init(sc) == 0))
pcfg = cdce_ncm_config;
#endif
error = usbd_transfer_setup(uaa->device,
sc->sc_ifaces_index, sc->sc_xfer,
pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx);
if (error == 0)
break;
}
if (error || (i == 32)) {
device_printf(dev, "No valid alternate "
"setting found\n");
goto detach;
}
ued = usbd_find_descriptor
(uaa->device, NULL, uaa->info.bIfaceIndex,
UDESC_CS_INTERFACE, 0 - 1, UDESCSUB_CDC_ENF, 0 - 1);
if ((ued == NULL) || (ued->bLength < sizeof(*ued))) {
error = USB_ERR_INVAL;
} else {
error = usbd_req_get_string_any(uaa->device, NULL,
eaddr_str, sizeof(eaddr_str), ued->iMacAddress);
}
if (error) {
/* fake MAC address */
device_printf(dev, "faking MAC address\n");
sc->sc_ue.ue_eaddr[0] = 0x2a;
memcpy(&sc->sc_ue.ue_eaddr[1], &ticks, sizeof(uint32_t));
sc->sc_ue.ue_eaddr[5] = device_get_unit(dev);
} else {
memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr));
for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) {
char c = eaddr_str[i];
if ('0' <= c && c <= '9')
c -= '0';
else if (c != 0)
c -= 'A' - 10;
else
break;
c &= 0xf;
if ((i & 1) == 0)
c <<= 4;
sc->sc_ue.ue_eaddr[i / 2] |= c;
}
if (uaa->usb_mode == USB_MODE_DEVICE) {
/*
* Do not use the same MAC address like the peer !
*/
sc->sc_ue.ue_eaddr[5] ^= 0xFF;
}
}
ue->ue_sc = sc;
ue->ue_dev = dev;
ue->ue_udev = uaa->device;
ue->ue_mtx = &sc->sc_mtx;
ue->ue_methods = &cdce_ue_methods;
error = uether_ifattach(ue);
if (error) {
device_printf(dev, "could not attach interface\n");
goto detach;
}
return (0); /* success */
detach:
cdce_detach(dev);
return (ENXIO); /* failure */
}
static int
ubt_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct ubt_softc *sc = device_get_softc(dev);
struct usb_endpoint_descriptor *ed;
struct usb_interface_descriptor *id;
struct usb_interface *iface;
uint16_t wMaxPacketSize;
uint8_t alt_index, i, j;
uint8_t iface_index[2] = { 0, 1 };
device_set_usb_desc(dev);
sc->sc_dev = dev;
sc->sc_debug = NG_UBT_WARN_LEVEL;
/*
* Create Netgraph node
*/
if (ng_make_node_common(&typestruct, &sc->sc_node) != 0) {
UBT_ALERT(sc, "could not create Netgraph node\n");
return (ENXIO);
}
/* Name Netgraph node */
if (ng_name_node(sc->sc_node, device_get_nameunit(dev)) != 0) {
UBT_ALERT(sc, "could not name Netgraph node\n");
NG_NODE_UNREF(sc->sc_node);
return (ENXIO);
}
NG_NODE_SET_PRIVATE(sc->sc_node, sc);
NG_NODE_FORCE_WRITER(sc->sc_node);
/*
* Initialize device softc structure
*/
/* initialize locks */
mtx_init(&sc->sc_ng_mtx, "ubt ng", NULL, MTX_DEF);
mtx_init(&sc->sc_if_mtx, "ubt if", NULL, MTX_DEF | MTX_RECURSE);
/* initialize packet queues */
NG_BT_MBUFQ_INIT(&sc->sc_cmdq, UBT_DEFAULT_QLEN);
NG_BT_MBUFQ_INIT(&sc->sc_aclq, UBT_DEFAULT_QLEN);
NG_BT_MBUFQ_INIT(&sc->sc_scoq, UBT_DEFAULT_QLEN);
/* initialize glue task */
TASK_INIT(&sc->sc_task, 0, ubt_task, sc);
/*
* Configure Bluetooth USB device. Discover all required USB
* interfaces and endpoints.
*
* USB device must present two interfaces:
* 1) Interface 0 that has 3 endpoints
* 1) Interrupt endpoint to receive HCI events
* 2) Bulk IN endpoint to receive ACL data
* 3) Bulk OUT endpoint to send ACL data
*
* 2) Interface 1 then has 2 endpoints
* 1) Isochronous IN endpoint to receive SCO data
* 2) Isochronous OUT endpoint to send SCO data
*
* Interface 1 (with isochronous endpoints) has several alternate
* configurations with different packet size.
*/
/*
* For interface #1 search alternate settings, and find
* the descriptor with the largest wMaxPacketSize
*/
wMaxPacketSize = 0;
alt_index = 0;
i = 0;
j = 0;
ed = NULL;
/*
* Search through all the descriptors looking for the largest
* packet size:
*/
while ((ed = (struct usb_endpoint_descriptor *)usb_desc_foreach(
usbd_get_config_descriptor(uaa->device),
(struct usb_descriptor *)ed))) {
if ((ed->bDescriptorType == UDESC_INTERFACE) &&
(ed->bLength >= sizeof(*id))) {
id = (struct usb_interface_descriptor *)ed;
i = id->bInterfaceNumber;
j = id->bAlternateSetting;
}
if ((ed->bDescriptorType == UDESC_ENDPOINT) &&
(ed->bLength >= sizeof(*ed)) &&
(i == 1)) {
uint16_t temp;
temp = UGETW(ed->wMaxPacketSize);
if (temp > wMaxPacketSize) {
wMaxPacketSize = temp;
alt_index = j;
}
}
}
/* Set alt configuration on interface #1 only if we found it */
if (wMaxPacketSize > 0 &&
usbd_set_alt_interface_index(uaa->device, 1, alt_index)) {
UBT_ALERT(sc, "could not set alternate setting %d " \
"for interface 1!\n", alt_index);
goto detach;
}
/* Setup transfers for both interfaces */
if (usbd_transfer_setup(uaa->device, iface_index, sc->sc_xfer,
ubt_config, UBT_N_TRANSFER, sc, &sc->sc_if_mtx)) {
UBT_ALERT(sc, "could not allocate transfers\n");
goto detach;
}
/* Claim all interfaces belonging to the Bluetooth part */
for (i = 1;; i++) {
iface = usbd_get_iface(uaa->device, i);
if (iface == NULL)
break;
id = usbd_get_interface_descriptor(iface);
if ((id != NULL) &&
(id->bInterfaceClass == UICLASS_WIRELESS) &&
(id->bInterfaceSubClass == UISUBCLASS_RF) &&
(id->bInterfaceProtocol == UIPROTO_BLUETOOTH)) {
usbd_set_parent_iface(uaa->device, i,
uaa->info.bIfaceIndex);
}
}
return (0); /* success */
detach:
ubt_detach(dev);
return (ENXIO);
} /* ubt_attach */