static int xusbatm_capture_intf(struct usbatm_data *usbatm, struct usb_device *usb_dev,
struct usb_interface *intf, int altsetting, int claim)
{
int ifnum = intf->altsetting->desc.bInterfaceNumber;
int ret;
if (claim && (ret = usb_driver_claim_interface(&xusbatm_usb_driver, intf, usbatm))) {
usb_err(usbatm, "%s: failed to claim interface %2d (%d)!\n", __func__, ifnum, ret);
return ret;
}
if ((ret = usb_set_interface(usb_dev, ifnum, altsetting))) {
usb_err(usbatm, "%s: altsetting %2d for interface %2d failed (%d)!\n", __func__, altsetting, ifnum, ret);
return ret;
}
return 0;
}
/* probes control interface, claims data interface, collects the bulk
* endpoints, activates data interface (if needed), maybe sets MTU.
* all pure cdc, except for certain firmware workarounds, and knowing
* that rndis uses one different rule.
*/
int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
{
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *d;
struct cdc_state *info = (void *) &dev->data;
int status;
int rndis;
bool android_rndis_quirk = false;
struct usb_driver *driver = driver_of(intf);
struct usb_cdc_parsed_header header;
if (sizeof(dev->data) < sizeof(*info))
return -EDOM;
/* expect strict spec conformance for the descriptors, but
* cope with firmware which stores them in the wrong place
*/
if (len == 0 && dev->udev->actconfig->extralen) {
/* Motorola SB4100 (and others: Brad Hards says it's
* from a Broadcom design) put CDC descriptors here
*/
buf = dev->udev->actconfig->extra;
len = dev->udev->actconfig->extralen;
dev_dbg(&intf->dev, "CDC descriptors on config\n");
}
/* Maybe CDC descriptors are after the endpoint? This bug has
* been seen on some 2Wire Inc RNDIS-ish products.
*/
if (len == 0) {
struct usb_host_endpoint *hep;
hep = intf->cur_altsetting->endpoint;
if (hep) {
buf = hep->extra;
len = hep->extralen;
}
if (len)
dev_dbg(&intf->dev,
"CDC descriptors on endpoint\n");
}
/* this assumes that if there's a non-RNDIS vendor variant
* of cdc-acm, it'll fail RNDIS requests cleanly.
*/
rndis = (is_rndis(&intf->cur_altsetting->desc) ||
is_activesync(&intf->cur_altsetting->desc) ||
is_wireless_rndis(&intf->cur_altsetting->desc));
memset(info, 0, sizeof(*info));
info->control = intf;
cdc_parse_cdc_header(&header, intf, buf, len);
info->u = header.usb_cdc_union_desc;
info->header = header.usb_cdc_header_desc;
info->ether = header.usb_cdc_ether_desc;
/* we need a master/control interface (what we're
* probed with) and a slave/data interface; union
* descriptors sort this all out.
*/
info->control = usb_ifnum_to_if(dev->udev,
info->u->bMasterInterface0);
info->data = usb_ifnum_to_if(dev->udev,
info->u->bSlaveInterface0);
if (!info->control || !info->data) {
dev_dbg(&intf->dev,
"master #%u/%p slave #%u/%p\n",
info->u->bMasterInterface0,
info->control,
info->u->bSlaveInterface0,
info->data);
/* fall back to hard-wiring for RNDIS */
if (rndis) {
android_rndis_quirk = true;
goto skip;
}
goto bad_desc;
}
if (info->control != intf) {
dev_dbg(&intf->dev, "bogus CDC Union\n");
/* Ambit USB Cable Modem (and maybe others)
* interchanges master and slave interface.
*/
if (info->data == intf) {
info->data = info->control;
info->control = intf;
} else
goto bad_desc;
}
/* some devices merge these - skip class check */
if (info->control == info->data)
goto skip;
/* a data interface altsetting does the real i/o */
d = &info->data->cur_altsetting->desc;
if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
dev_dbg(&intf->dev, "slave class %u\n",
d->bInterfaceClass);
goto bad_desc;
}
skip:
if ( rndis &&
header.usb_cdc_acm_descriptor &&
header.usb_cdc_acm_descriptor->bmCapabilities) {
dev_dbg(&intf->dev,
"ACM capabilities %02x, not really RNDIS?\n",
header.usb_cdc_acm_descriptor->bmCapabilities);
goto bad_desc;
}
if (header.usb_cdc_ether_desc) {
dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
/* because of Zaurus, we may be ignoring the host
* side link address we were given.
*/
}
if (header.usb_cdc_mdlm_desc &&
memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
dev_dbg(&intf->dev, "GUID doesn't match\n");
goto bad_desc;
}
if (header.usb_cdc_mdlm_detail_desc &&
header.usb_cdc_mdlm_detail_desc->bLength <
(sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
dev_dbg(&intf->dev, "Descriptor too short\n");
goto bad_desc;
}
/* Microsoft ActiveSync based and some regular RNDIS devices lack the
* CDC descriptors, so we'll hard-wire the interfaces and not check
* for descriptors.
*
* Some Android RNDIS devices have a CDC Union descriptor pointing
* to non-existing interfaces. Ignore that and attempt the same
* hard-wired 0 and 1 interfaces.
*/
if (rndis && (!info->u || android_rndis_quirk)) {
info->control = usb_ifnum_to_if(dev->udev, 0);
info->data = usb_ifnum_to_if(dev->udev, 1);
if (!info->control || !info->data || info->control != intf) {
dev_dbg(&intf->dev,
"rndis: master #0/%p slave #1/%p\n",
info->control,
info->data);
goto bad_desc;
}
} else if (!info->header || !info->u || (!rndis && !info->ether)) {
dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
info->header ? "" : "header ",
info->u ? "" : "union ",
info->ether ? "" : "ether ");
goto bad_desc;
}
/* claim data interface and set it up ... with side effects.
* network traffic can't flow until an altsetting is enabled.
*/
if (info->data != info->control) {
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
return status;
}
status = usbnet_get_endpoints(dev, info->data);
if (status < 0) {
/* ensure immediate exit from usbnet_disconnect */
usb_set_intfdata(info->data, NULL);
if (info->data != info->control)
usb_driver_release_interface(driver, info->data);
return status;
}
/* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
if (info->data != info->control)
dev->status = NULL;
if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
struct usb_endpoint_descriptor *desc;
dev->status = &info->control->cur_altsetting->endpoint [0];
desc = &dev->status->desc;
if (!usb_endpoint_is_int_in(desc) ||
(le16_to_cpu(desc->wMaxPacketSize)
< sizeof(struct usb_cdc_notification)) ||
!desc->bInterval) {
dev_dbg(&intf->dev, "bad notification endpoint\n");
dev->status = NULL;
}
}
if (rndis && !dev->status) {
dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return -ENODEV;
}
/* Some devices don't initialise properly. In particular
* the packet filter is not reset. There are devices that
* don't do reset all the way. So the packet filter should
* be set to a sane initial value.
*/
usbnet_cdc_update_filter(dev);
return 0;
bad_desc:
dev_info(&dev->udev->dev, "bad CDC descriptors\n");
return -ENODEV;
}
int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
{
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *d;
struct cdc_state *info = (void *) &dev->data;
int status;
int rndis;
bool android_rndis_quirk = false;
struct usb_driver *driver = driver_of(intf);
struct usb_cdc_mdlm_desc *desc = NULL;
struct usb_cdc_mdlm_detail_desc *detail = NULL;
if (sizeof dev->data < sizeof *info)
return -EDOM;
if (len == 0 && dev->udev->actconfig->extralen) {
buf = dev->udev->actconfig->extra;
len = dev->udev->actconfig->extralen;
dev_dbg(&intf->dev, "CDC descriptors on config\n");
}
if (len == 0) {
struct usb_host_endpoint *hep;
hep = intf->cur_altsetting->endpoint;
if (hep) {
buf = hep->extra;
len = hep->extralen;
}
if (len)
dev_dbg(&intf->dev,
"CDC descriptors on endpoint\n");
}
rndis = (is_rndis(&intf->cur_altsetting->desc) ||
is_activesync(&intf->cur_altsetting->desc) ||
is_wireless_rndis(&intf->cur_altsetting->desc));
memset(info, 0, sizeof *info);
info->control = intf;
while (len > 3) {
if (buf [1] != USB_DT_CS_INTERFACE)
goto next_desc;
switch (buf [2]) {
case USB_CDC_HEADER_TYPE:
if (info->header) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto bad_desc;
}
info->header = (void *) buf;
if (info->header->bLength != sizeof *info->header) {
dev_dbg(&intf->dev, "CDC header len %u\n",
info->header->bLength);
goto bad_desc;
}
break;
case USB_CDC_ACM_TYPE:
if (rndis) {
struct usb_cdc_acm_descriptor *acm;
acm = (void *) buf;
if (acm->bmCapabilities) {
dev_dbg(&intf->dev,
"ACM capabilities %02x, "
"not really RNDIS?\n",
acm->bmCapabilities);
goto bad_desc;
}
}
break;
case USB_CDC_UNION_TYPE:
if (info->u) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto bad_desc;
}
info->u = (void *) buf;
if (info->u->bLength != sizeof *info->u) {
dev_dbg(&intf->dev, "CDC union len %u\n",
info->u->bLength);
goto bad_desc;
}
info->control = usb_ifnum_to_if(dev->udev,
info->u->bMasterInterface0);
info->data = usb_ifnum_to_if(dev->udev,
info->u->bSlaveInterface0);
if (!info->control || !info->data) {
dev_dbg(&intf->dev,
"master #%u/%p slave #%u/%p\n",
info->u->bMasterInterface0,
info->control,
info->u->bSlaveInterface0,
info->data);
if (rndis) {
android_rndis_quirk = true;
goto next_desc;
}
goto bad_desc;
}
if (info->control != intf) {
dev_dbg(&intf->dev, "bogus CDC Union\n");
if (info->data == intf) {
info->data = info->control;
info->control = intf;
} else
goto bad_desc;
}
d = &info->data->cur_altsetting->desc;
if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
dev_dbg(&intf->dev, "slave class %u\n",
d->bInterfaceClass);
goto bad_desc;
}
break;
case USB_CDC_ETHERNET_TYPE:
if (info->ether) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto bad_desc;
}
info->ether = (void *) buf;
if (info->ether->bLength != sizeof *info->ether) {
dev_dbg(&intf->dev, "CDC ether len %u\n",
info->ether->bLength);
goto bad_desc;
}
dev->hard_mtu = le16_to_cpu(
info->ether->wMaxSegmentSize);
break;
case USB_CDC_MDLM_TYPE:
if (desc) {
dev_dbg(&intf->dev, "extra MDLM descriptor\n");
goto bad_desc;
}
desc = (void *)buf;
if (desc->bLength != sizeof(*desc))
goto bad_desc;
if (memcmp(&desc->bGUID, mbm_guid, 16))
goto bad_desc;
break;
case USB_CDC_MDLM_DETAIL_TYPE:
if (detail) {
dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
goto bad_desc;
}
detail = (void *)buf;
if (detail->bGuidDescriptorType == 0) {
if (detail->bLength < (sizeof(*detail) + 1))
goto bad_desc;
} else
goto bad_desc;
break;
}
next_desc:
len -= buf [0];
buf += buf [0];
}
if (rndis && (!info->u || android_rndis_quirk)) {
info->control = usb_ifnum_to_if(dev->udev, 0);
info->data = usb_ifnum_to_if(dev->udev, 1);
if (!info->control || !info->data || info->control != intf) {
dev_dbg(&intf->dev,
"rndis: master #0/%p slave #1/%p\n",
info->control,
info->data);
goto bad_desc;
}
} else if (!info->header || !info->u || (!rndis && !info->ether)) {
dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
info->header ? "" : "header ",
info->u ? "" : "union ",
info->ether ? "" : "ether ");
goto bad_desc;
}
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
return status;
status = usbnet_get_endpoints(dev, info->data);
if (status < 0) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return status;
}
dev->status = NULL;
if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
struct usb_endpoint_descriptor *desc;
dev->status = &info->control->cur_altsetting->endpoint [0];
desc = &dev->status->desc;
if (!usb_endpoint_is_int_in(desc) ||
(le16_to_cpu(desc->wMaxPacketSize)
< sizeof(struct usb_cdc_notification)) ||
!desc->bInterval) {
dev_dbg(&intf->dev, "bad notification endpoint\n");
dev->status = NULL;
}
}
if (rndis && !dev->status) {
dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return -ENODEV;
}
return 0;
bad_desc:
dev_info(&dev->udev->dev, "bad CDC descriptors\n");
return -ENODEV;
}
int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting)
{
struct cdc_ncm_ctx *ctx;
struct usb_driver *driver;
u8 *buf;
int len;
int temp;
u8 iface_no;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
ctx->bh.data = (unsigned long)ctx;
ctx->bh.func = cdc_ncm_txpath_bh;
atomic_set(&ctx->stop, 0);
spin_lock_init(&ctx->mtx);
ctx->netdev = dev->net;
/* store ctx pointer in device data field */
dev->data[0] = (unsigned long)ctx;
/* get some pointers */
driver = driver_of(intf);
buf = intf->cur_altsetting->extra;
len = intf->cur_altsetting->extralen;
ctx->udev = dev->udev;
ctx->intf = intf;
/* parse through descriptors associated with control interface */
while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) {
if (buf[1] != USB_DT_CS_INTERFACE)
goto advance;
switch (buf[2]) {
case USB_CDC_UNION_TYPE:
if (buf[0] < sizeof(*(ctx->union_desc)))
break;
ctx->union_desc =
(const struct usb_cdc_union_desc *)buf;
ctx->control = usb_ifnum_to_if(dev->udev,
ctx->union_desc->bMasterInterface0);
ctx->data = usb_ifnum_to_if(dev->udev,
ctx->union_desc->bSlaveInterface0);
break;
case USB_CDC_ETHERNET_TYPE:
if (buf[0] < sizeof(*(ctx->ether_desc)))
break;
ctx->ether_desc =
(const struct usb_cdc_ether_desc *)buf;
dev->hard_mtu =
le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);
if (dev->hard_mtu < CDC_NCM_MIN_DATAGRAM_SIZE)
dev->hard_mtu = CDC_NCM_MIN_DATAGRAM_SIZE;
else if (dev->hard_mtu > CDC_NCM_MAX_DATAGRAM_SIZE)
dev->hard_mtu = CDC_NCM_MAX_DATAGRAM_SIZE;
break;
case USB_CDC_NCM_TYPE:
if (buf[0] < sizeof(*(ctx->func_desc)))
break;
ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf;
break;
case USB_CDC_MBIM_TYPE:
if (buf[0] < sizeof(*(ctx->mbim_desc)))
break;
ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf;
break;
default:
break;
}
advance:
/* advance to next descriptor */
temp = buf[0];
buf += temp;
len -= temp;
}
/* some buggy devices have an IAD but no CDC Union */
if (!ctx->union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
ctx->control = intf;
ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
}
/* check if we got everything */
if ((ctx->control == NULL) || (ctx->data == NULL) ||
((!ctx->mbim_desc) && ((ctx->ether_desc == NULL) || (ctx->control != intf))))
goto error;
/* claim data interface, if different from control */
if (ctx->data != ctx->control) {
temp = usb_driver_claim_interface(driver, ctx->data, dev);
if (temp)
goto error;
}
iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
/* reset data interface */
temp = usb_set_interface(dev->udev, iface_no, 0);
if (temp)
goto error2;
/* initialize data interface */
if (cdc_ncm_setup(ctx))
goto error2;
/* configure data interface */
temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
if (temp)
goto error2;
cdc_ncm_find_endpoints(ctx, ctx->data);
cdc_ncm_find_endpoints(ctx, ctx->control);
if ((ctx->in_ep == NULL) || (ctx->out_ep == NULL) ||
(ctx->status_ep == NULL))
goto error2;
dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
usb_set_intfdata(ctx->data, dev);
usb_set_intfdata(ctx->control, dev);
usb_set_intfdata(ctx->intf, dev);
if (ctx->ether_desc) {
temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
if (temp)
goto error2;
dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
}
dev->in = usb_rcvbulkpipe(dev->udev,
ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
dev->out = usb_sndbulkpipe(dev->udev,
ctx->out_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
dev->status = ctx->status_ep;
dev->rx_urb_size = ctx->rx_max;
ctx->tx_speed = ctx->rx_speed = 0;
return 0;
error2:
usb_set_intfdata(ctx->control, NULL);
usb_set_intfdata(ctx->data, NULL);
if (ctx->data != ctx->control)
usb_driver_release_interface(driver, ctx->data);
error:
cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]);
dev->data[0] = 0;
dev_info(&dev->udev->dev, "bind() failure\n");
return -ENODEV;
}
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_endpoint_descriptor *ep_desc;
struct btusb_data *data;
struct hci_dev *hdev;
int i, err,flag1,flag2;
struct usb_device *udev;
udev = interface_to_usbdev(intf);
/* interface numbers are hardcoded in the spec */
if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;
/*******************************/
flag1=device_can_wakeup(&udev->dev);
flag2=device_may_wakeup(&udev->dev);
RTKBT_DBG("btusb_probe 1==========can_wakeup=%x flag2=%x",flag1,flag2);
//device_wakeup_enable(&udev->dev);
/*device_wakeup_disable(&udev->dev);
flag1=device_can_wakeup(&udev->dev);
flag2=device_may_wakeup(&udev->dev);
RTKBT_DBG("btusb_probe 2==========can_wakeup=%x flag2=%x",flag1,flag2);
*/
err = patch_add(intf);
if (err < 0) return -1;
/*******************************/
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
data->intr_ep = ep_desc;
continue;
}
if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
data->bulk_tx_ep = ep_desc;
continue;
}
if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
data->bulk_rx_ep = ep_desc;
continue;
}
}
if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
kfree(data);
return -ENODEV;
}
data->cmdreq_type = USB_TYPE_CLASS;
data->udev = interface_to_usbdev(intf);
data->intf = intf;
spin_lock_init(&data->lock);
INIT_WORK(&data->work, btusb_work);
INIT_WORK(&data->waker, btusb_waker);
spin_lock_init(&data->txlock);
init_usb_anchor(&data->tx_anchor);
init_usb_anchor(&data->intr_anchor);
init_usb_anchor(&data->bulk_anchor);
init_usb_anchor(&data->isoc_anchor);
init_usb_anchor(&data->deferred);
hdev = hci_alloc_dev();
if (!hdev) {
kfree(data);
return -ENOMEM;
}
HDEV_BUS = HCI_USB;
data->hdev = hdev;
SET_HCIDEV_DEV(hdev, &intf->dev);
hdev->open = btusb_open;
hdev->close = btusb_close;
hdev->flush = btusb_flush;
hdev->send = btusb_send_frame;
hdev->notify = btusb_notify;
#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
hci_set_drvdata(hdev, data);
#else
hdev->driver_data = data;
hdev->destruct = btusb_destruct;
hdev->owner = THIS_MODULE;
#endif
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
if (data->isoc) {
err = usb_driver_claim_interface(&btusb_driver,
data->isoc, data);
if (err < 0) {
hci_free_dev(hdev);
kfree(data);
return err;
}
}
err = hci_register_dev(hdev);
if (err < 0) {
hci_free_dev(hdev);
kfree(data);
return err;
}
usb_set_intfdata(intf, data);
return 0;
}
static int acm_probe (struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_cdc_union_desc *union_header = NULL;
struct usb_cdc_country_functional_desc *cfd = NULL;
unsigned char *buffer = intf->altsetting->extra;
int buflen = intf->altsetting->extralen;
struct usb_interface *control_interface;
struct usb_interface *data_interface;
struct usb_endpoint_descriptor *epctrl;
struct usb_endpoint_descriptor *epread;
struct usb_endpoint_descriptor *epwrite;
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct acm *acm;
int minor;
int ctrlsize,readsize;
u8 *buf;
u8 ac_management_function = 0;
u8 call_management_function = 0;
int call_interface_num = -1;
int data_interface_num;
unsigned long quirks;
int num_rx_buf;
int i;
/* normal quirks */
quirks = (unsigned long)id->driver_info;
num_rx_buf = (quirks == SINGLE_RX_URB) ? 1 : ACM_NR;
/* handle quirks deadly to normal probing*/
if (quirks == NO_UNION_NORMAL) {
data_interface = usb_ifnum_to_if(usb_dev, 1);
control_interface = usb_ifnum_to_if(usb_dev, 0);
goto skip_normal_probe;
}
/* normal probing*/
if (!buffer) {
err("Weird descriptor references\n");
return -EINVAL;
}
if (!buflen) {
if (intf->cur_altsetting->endpoint &&
intf->cur_altsetting->endpoint->extralen &&
intf->cur_altsetting->endpoint->extra) {
dev_dbg(&intf->dev,"Seeking extra descriptors on endpoint\n");
buflen = intf->cur_altsetting->endpoint->extralen;
buffer = intf->cur_altsetting->endpoint->extra;
} else {
err("Zero length descriptor references\n");
return -EINVAL;
}
}
while (buflen > 0) {
if (buffer [1] != USB_DT_CS_INTERFACE) {
err("skipping garbage\n");
goto next_desc;
}
switch (buffer [2]) {
case USB_CDC_UNION_TYPE: /* we've found it */
if (union_header) {
err("More than one union descriptor, skipping ...");
goto next_desc;
}
union_header = (struct usb_cdc_union_desc *)
buffer;
break;
case USB_CDC_COUNTRY_TYPE: /* export through sysfs*/
cfd = (struct usb_cdc_country_functional_desc *)buffer;
break;
case USB_CDC_HEADER_TYPE: /* maybe check version */
break; /* for now we ignore it */
case USB_CDC_ACM_TYPE:
ac_management_function = buffer[3];
break;
case USB_CDC_CALL_MANAGEMENT_TYPE:
call_management_function = buffer[3];
call_interface_num = buffer[4];
if ((call_management_function & 3) != 3)
err("This device cannot do calls on its own. It is no modem.");
break;
default:
/* there are LOTS more CDC descriptors that
* could legitimately be found here.
*/
dev_dbg(&intf->dev, "Ignoring descriptor: "
"type %02x, length %d\n",
buffer[2], buffer[0]);
break;
}
next_desc:
buflen -= buffer[0];
buffer += buffer[0];
}
if (!union_header) {
if (call_interface_num > 0) {
dev_dbg(&intf->dev,"No union descriptor, using call management descriptor\n");
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = call_interface_num));
control_interface = intf;
} else {
dev_dbg(&intf->dev,"No union descriptor, giving up\n");
return -ENODEV;
}
} else {
control_interface = usb_ifnum_to_if(usb_dev, union_header->bMasterInterface0);
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = union_header->bSlaveInterface0));
if (!control_interface || !data_interface) {
dev_dbg(&intf->dev,"no interfaces\n");
return -ENODEV;
}
}
if (data_interface_num != call_interface_num)
dev_dbg(&intf->dev,"Seperate call control interface. That is not fully supported.\n");
skip_normal_probe:
/*workaround for switched interfaces */
if (data_interface->cur_altsetting->desc.bInterfaceClass != CDC_DATA_INTERFACE_TYPE) {
if (control_interface->cur_altsetting->desc.bInterfaceClass == CDC_DATA_INTERFACE_TYPE) {
struct usb_interface *t;
dev_dbg(&intf->dev,"Your device has switched interfaces.\n");
t = control_interface;
control_interface = data_interface;
data_interface = t;
} else {
return -EINVAL;
}
}
/* Accept probe requests only for the control interface */
if (intf != control_interface)
return -ENODEV;
if (usb_interface_claimed(data_interface)) { /* valid in this context */
dev_dbg(&intf->dev,"The data interface isn't available\n");
return -EBUSY;
}
if (data_interface->cur_altsetting->desc.bNumEndpoints < 2)
return -EINVAL;
epctrl = &control_interface->cur_altsetting->endpoint[0].desc;
epread = &data_interface->cur_altsetting->endpoint[0].desc;
epwrite = &data_interface->cur_altsetting->endpoint[1].desc;
/* workaround for switched endpoints */
if (!usb_endpoint_dir_in(epread)) {
/* descriptors are swapped */
struct usb_endpoint_descriptor *t;
dev_dbg(&intf->dev,"The data interface has switched endpoints\n");
t = epread;
epread = epwrite;
epwrite = t;
}
dbg("interfaces are valid");
for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++);
if (minor == ACM_TTY_MINORS) {
err("no more free acm devices");
return -ENODEV;
}
if (!(acm = kzalloc(sizeof(struct acm), GFP_KERNEL))) {
dev_dbg(&intf->dev, "out of memory (acm kzalloc)\n");
goto alloc_fail;
}
ctrlsize = le16_to_cpu(epctrl->wMaxPacketSize);
readsize = le16_to_cpu(epread->wMaxPacketSize)* ( quirks == SINGLE_RX_URB ? 1 : 2);
acm->writesize = le16_to_cpu(epwrite->wMaxPacketSize) * 20;
acm->control = control_interface;
acm->data = data_interface;
acm->minor = minor;
acm->dev = usb_dev;
acm->ctrl_caps = ac_management_function;
acm->ctrlsize = ctrlsize;
acm->readsize = readsize;
acm->rx_buflimit = num_rx_buf;
acm->urb_task.func = acm_rx_tasklet;
acm->urb_task.data = (unsigned long) acm;
INIT_WORK(&acm->work, acm_softint);
INIT_WORK(&acm->waker, acm_waker);
spin_lock_init(&acm->throttle_lock);
spin_lock_init(&acm->write_lock);
spin_lock_init(&acm->read_lock);
mutex_init(&acm->mutex);
acm->write_ready = 1;
acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
dev_dbg(&intf->dev, "out of memory (ctrl buffer alloc)\n");
goto alloc_fail2;
}
acm->ctrl_buffer = buf;
if (acm_write_buffers_alloc(acm) < 0) {
dev_dbg(&intf->dev, "out of memory (write buffer alloc)\n");
goto alloc_fail4;
}
acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL);
if (!acm->ctrlurb) {
dev_dbg(&intf->dev, "out of memory (ctrlurb kmalloc)\n");
goto alloc_fail5;
}
for (i = 0; i < num_rx_buf; i++) {
struct acm_ru *rcv = &(acm->ru[i]);
if (!(rcv->urb = usb_alloc_urb(0, GFP_KERNEL))) {
dev_dbg(&intf->dev, "out of memory (read urbs usb_alloc_urb)\n");
goto alloc_fail7;
}
rcv->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
rcv->instance = acm;
}
for (i = 0; i < num_rx_buf; i++) {
struct acm_rb *buf = &(acm->rb[i]);
if (!(buf->base = usb_buffer_alloc(acm->dev, readsize, GFP_KERNEL, &buf->dma))) {
dev_dbg(&intf->dev, "out of memory (read bufs usb_buffer_alloc)\n");
goto alloc_fail7;
}
}
for(i = 0; i < ACM_NW; i++)
{
struct acm_wb *snd = &(acm->wb[i]);
if (!(snd->urb = usb_alloc_urb(0, GFP_KERNEL))) {
dev_dbg(&intf->dev, "out of memory (write urbs usb_alloc_urb)");
goto alloc_fail7;
}
usb_fill_bulk_urb(snd->urb, usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
NULL, acm->writesize, acm_write_bulk, snd);
snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
snd->instance = acm;
}
usb_set_intfdata (intf, acm);
i = device_create_file(&intf->dev, &dev_attr_bmCapabilities);
if (i < 0)
goto alloc_fail8;
if (cfd) { /* export the country data */
acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL);
if (!acm->country_codes)
goto skip_countries;
acm->country_code_size = cfd->bLength - 4;
memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0, cfd->bLength - 4);
acm->country_rel_date = cfd->iCountryCodeRelDate;
i = device_create_file(&intf->dev, &dev_attr_wCountryCodes);
if (i < 0) {
kfree(acm->country_codes);
goto skip_countries;
}
i = device_create_file(&intf->dev, &dev_attr_iCountryCodeRelDate);
if (i < 0) {
kfree(acm->country_codes);
goto skip_countries;
}
}
skip_countries:
usb_fill_int_urb(acm->ctrlurb, usb_dev, usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress),
acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm, epctrl->bInterval);
acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
acm->ctrlurb->transfer_dma = acm->ctrl_dma;
dev_info(&intf->dev, "ttyACM%d: USB ACM device\n", minor);
acm_set_control(acm, acm->ctrlout);
acm->line.dwDTERate = cpu_to_le32(9600);
acm->line.bDataBits = 8;
acm_set_line(acm, &acm->line);
usb_driver_claim_interface(&acm_driver, data_interface, acm);
usb_get_intf(control_interface);
tty_register_device(acm_tty_driver, minor, &control_interface->dev);
acm_table[minor] = acm;
return 0;
alloc_fail8:
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);
alloc_fail7:
acm_read_buffers_free(acm);
for (i = 0; i < num_rx_buf; i++)
usb_free_urb(acm->ru[i].urb);
usb_free_urb(acm->ctrlurb);
alloc_fail5:
acm_write_buffers_free(acm);
alloc_fail4:
usb_buffer_free(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
alloc_fail2:
kfree(acm);
alloc_fail:
return -ENOMEM;
}
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_endpoint_descriptor *ep_desc;
struct btusb_data *data;
struct hci_dev *hdev;
int i, err;
BT_DBG("intf %p id %p", intf, id);
/* interface numbers are hardcoded in the spec */
if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;
if (!id->driver_info) {
const struct usb_device_id *match;
match = usb_match_id(intf, blacklist_table);
if (match)
id = match;
}
if (id->driver_info == BTUSB_IGNORE)
return -ENODEV;
if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
return -ENODEV;
if (ignore_csr && id->driver_info & BTUSB_CSR)
return -ENODEV;
if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
return -ENODEV;
if (id->driver_info & BTUSB_ATH3012) {
struct usb_device *udev = interface_to_usbdev(intf);
/* Old firmware would otherwise let ath3k driver load
* patch and sysconfig files */
if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
return -ENODEV;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
data->intr_ep = ep_desc;
continue;
}
if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
data->bulk_tx_ep = ep_desc;
continue;
}
if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
data->bulk_rx_ep = ep_desc;
continue;
}
}
if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
kfree(data);
return -ENODEV;
}
data->cmdreq_type = USB_TYPE_CLASS;
data->udev = interface_to_usbdev(intf);
data->intf = intf;
spin_lock_init(&data->lock);
INIT_WORK(&data->work, btusb_work);
INIT_WORK(&data->waker, btusb_waker);
spin_lock_init(&data->txlock);
init_usb_anchor(&data->tx_anchor);
init_usb_anchor(&data->intr_anchor);
init_usb_anchor(&data->bulk_anchor);
init_usb_anchor(&data->isoc_anchor);
init_usb_anchor(&data->deferred);
hdev = hci_alloc_dev();
if (!hdev) {
kfree(data);
return -ENOMEM;
}
hdev->bus = HCI_USB;
hdev->driver_data = data;
data->hdev = hdev;
SET_HCIDEV_DEV(hdev, &intf->dev);
hdev->open = btusb_open;
hdev->close = btusb_close;
hdev->flush = btusb_flush;
hdev->send = btusb_send_frame;
hdev->destruct = btusb_destruct;
hdev->notify = btusb_notify;
hdev->owner = THIS_MODULE;
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
if (!reset)
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
if (!disable_scofix)
set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
}
if (id->driver_info & BTUSB_BROKEN_ISOC)
data->isoc = NULL;
if (id->driver_info & BTUSB_DIGIANSWER) {
data->cmdreq_type = USB_TYPE_VENDOR;
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
}
if (id->driver_info & BTUSB_CSR) {
struct usb_device *udev = data->udev;
/* Old firmware would otherwise execute USB reset */
if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
}
if (id->driver_info & BTUSB_SNIFFER) {
struct usb_device *udev = data->udev;
/* New sniffer firmware has crippled HCI interface */
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
data->isoc = NULL;
}
if (id->driver_info & BTUSB_BCM92035) {
unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
struct sk_buff *skb;
skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
if (skb) {
memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
skb_queue_tail(&hdev->driver_init, skb);
}
}
if (data->isoc) {
err = usb_driver_claim_interface(&btusb_driver,
data->isoc, data);
if (err < 0) {
hci_free_dev(hdev);
kfree(data);
return err;
}
}
err = hci_register_dev(hdev);
if (err < 0) {
hci_free_dev(hdev);
kfree(data);
return err;
}
usb_set_intfdata(intf, data);
return 0;
}
static int acm_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_cdc_union_desc *union_header = NULL;
struct usb_cdc_country_functional_desc *cfd = NULL;
unsigned char *buffer = intf->altsetting->extra;
int buflen = intf->altsetting->extralen;
struct usb_interface *control_interface;
struct usb_interface *data_interface;
struct usb_endpoint_descriptor *epctrl = NULL;
struct usb_endpoint_descriptor *epread = NULL;
struct usb_endpoint_descriptor *epwrite = NULL;
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct acm *acm;
int minor;
int ctrlsize, readsize;
u8 *buf;
u8 ac_management_function = 0;
u8 call_management_function = 0;
int call_interface_num = -1;
int data_interface_num = -1;
unsigned long quirks;
int num_rx_buf;
int i;
int combined_interfaces = 0;
/* normal quirks */
quirks = (unsigned long)id->driver_info;
num_rx_buf = (quirks == SINGLE_RX_URB) ? 1 : ACM_NR;
/* handle quirks deadly to normal probing*/
if (quirks == NO_UNION_NORMAL) {
data_interface = usb_ifnum_to_if(usb_dev, 1);
control_interface = usb_ifnum_to_if(usb_dev, 0);
/* we would crash */
if (!data_interface || !control_interface)
return -ENODEV;
goto skip_normal_probe;
}
/* normal probing*/
if (!buffer) {
dev_err(&intf->dev, "Weird descriptor references\n");
return -EINVAL;
}
if (!buflen) {
if (intf->cur_altsetting->endpoint &&
intf->cur_altsetting->endpoint->extralen &&
intf->cur_altsetting->endpoint->extra) {
dev_dbg(&intf->dev,
"Seeking extra descriptors on endpoint\n");
buflen = intf->cur_altsetting->endpoint->extralen;
buffer = intf->cur_altsetting->endpoint->extra;
} else {
dev_err(&intf->dev,
"Zero length descriptor references\n");
return -EINVAL;
}
}
while (buflen > 0) {
if (buffer[1] != USB_DT_CS_INTERFACE) {
dev_err(&intf->dev, "skipping garbage\n");
goto next_desc;
}
switch (buffer[2]) {
case USB_CDC_UNION_TYPE: /* we've found it */
if (union_header) {
dev_err(&intf->dev, "More than one "
"union descriptor, skipping ...\n");
goto next_desc;
}
union_header = (struct usb_cdc_union_desc *)buffer;
break;
case USB_CDC_COUNTRY_TYPE: /* export through sysfs*/
cfd = (struct usb_cdc_country_functional_desc *)buffer;
break;
case USB_CDC_HEADER_TYPE: /* maybe check version */
break; /* for now we ignore it */
case USB_CDC_ACM_TYPE:
ac_management_function = buffer[3];
break;
case USB_CDC_CALL_MANAGEMENT_TYPE:
call_management_function = buffer[3];
call_interface_num = buffer[4];
if ( (quirks & NOT_A_MODEM) == 0 && (call_management_function & 3) != 3)
dev_err(&intf->dev, "This device cannot do calls on its own. It is not a modem.\n");
break;
default:
/* there are LOTS more CDC descriptors that
* could legitimately be found here.
*/
dev_dbg(&intf->dev, "Ignoring descriptor: "
"type %02x, length %d\n",
buffer[2], buffer[0]);
break;
}
next_desc:
buflen -= buffer[0];
buffer += buffer[0];
}
if (!union_header) {
if (call_interface_num > 0) {
dev_dbg(&intf->dev, "No union descriptor, using call management descriptor\n");
/* quirks for Droids MuIn LCD */
if (quirks & NO_DATA_INTERFACE)
data_interface = usb_ifnum_to_if(usb_dev, 0);
else
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = call_interface_num));
control_interface = intf;
} else {
if (intf->cur_altsetting->desc.bNumEndpoints != 3) {
dev_dbg(&intf->dev,"No union descriptor, giving up\n");
return -ENODEV;
} else {
dev_warn(&intf->dev,"No union descriptor, testing for castrated device\n");
combined_interfaces = 1;
control_interface = data_interface = intf;
goto look_for_collapsed_interface;
}
}
} else {
control_interface = usb_ifnum_to_if(usb_dev, union_header->bMasterInterface0);
data_interface = usb_ifnum_to_if(usb_dev, (data_interface_num = union_header->bSlaveInterface0));
if (!control_interface || !data_interface) {
dev_dbg(&intf->dev, "no interfaces\n");
return -ENODEV;
}
}
if (data_interface_num != call_interface_num)
dev_dbg(&intf->dev, "Separate call control interface. That is not fully supported.\n");
if (control_interface == data_interface) {
/* some broken devices designed for windows work this way */
dev_warn(&intf->dev,"Control and data interfaces are not separated!\n");
combined_interfaces = 1;
/* a popular other OS doesn't use it */
quirks |= NO_CAP_LINE;
if (data_interface->cur_altsetting->desc.bNumEndpoints != 3) {
dev_err(&intf->dev, "This needs exactly 3 endpoints\n");
return -EINVAL;
}
look_for_collapsed_interface:
for (i = 0; i < 3; i++) {
struct usb_endpoint_descriptor *ep;
ep = &data_interface->cur_altsetting->endpoint[i].desc;
if (usb_endpoint_is_int_in(ep))
epctrl = ep;
else if (usb_endpoint_is_bulk_out(ep))
epwrite = ep;
else if (usb_endpoint_is_bulk_in(ep))
epread = ep;
else
return -EINVAL;
}
if (!epctrl || !epread || !epwrite)
return -ENODEV;
else
goto made_compressed_probe;
}
skip_normal_probe:
/*workaround for switched interfaces */
if (data_interface->cur_altsetting->desc.bInterfaceClass
!= CDC_DATA_INTERFACE_TYPE) {
if (control_interface->cur_altsetting->desc.bInterfaceClass
== CDC_DATA_INTERFACE_TYPE) {
struct usb_interface *t;
dev_dbg(&intf->dev,
"Your device has switched interfaces.\n");
t = control_interface;
control_interface = data_interface;
data_interface = t;
} else {
return -EINVAL;
}
}
/* Accept probe requests only for the control interface */
if (!combined_interfaces && intf != control_interface)
return -ENODEV;
if (!combined_interfaces && usb_interface_claimed(data_interface)) {
/* valid in this context */
dev_dbg(&intf->dev, "The data interface isn't available\n");
return -EBUSY;
}
if (data_interface->cur_altsetting->desc.bNumEndpoints < 2 ||
control_interface->cur_altsetting->desc.bNumEndpoints == 0)
return -EINVAL;
epctrl = &control_interface->cur_altsetting->endpoint[0].desc;
epread = &data_interface->cur_altsetting->endpoint[0].desc;
epwrite = &data_interface->cur_altsetting->endpoint[1].desc;
/* workaround for switched endpoints */
if (!usb_endpoint_dir_in(epread)) {
/* descriptors are swapped */
struct usb_endpoint_descriptor *t;
dev_dbg(&intf->dev,
"The data interface has switched endpoints\n");
t = epread;
epread = epwrite;
epwrite = t;
}
made_compressed_probe:
dev_dbg(&intf->dev, "interfaces are valid\n");
for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++);
if (minor == ACM_TTY_MINORS) {
dev_err(&intf->dev, "no more free acm devices\n");
return -ENODEV;
}
acm = kzalloc(sizeof(struct acm), GFP_KERNEL);
if (acm == NULL) {
dev_err(&intf->dev, "out of memory (acm kzalloc)\n");
goto alloc_fail;
}
ctrlsize = le16_to_cpu(epctrl->wMaxPacketSize);
readsize = le16_to_cpu(epread->wMaxPacketSize) *
(quirks == SINGLE_RX_URB ? 1 : 2);
acm->combined_interfaces = combined_interfaces;
acm->writesize = le16_to_cpu(epwrite->wMaxPacketSize) * 20;
acm->control = control_interface;
acm->data = data_interface;
acm->minor = minor;
acm->dev = usb_dev;
acm->ctrl_caps = ac_management_function;
if (quirks & NO_CAP_LINE)
acm->ctrl_caps &= ~USB_CDC_CAP_LINE;
acm->ctrlsize = ctrlsize;
acm->readsize = readsize;
acm->rx_buflimit = num_rx_buf;
INIT_WORK(&acm->work, acm_softint);
spin_lock_init(&acm->write_lock);
spin_lock_init(&acm->read_lock);
mutex_init(&acm->mutex);
acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
acm->is_int_ep = usb_endpoint_xfer_int(epread);
if (acm->is_int_ep)
acm->bInterval = epread->bInterval;
tty_port_init(&acm->port);
acm->port.ops = &acm_port_ops;
buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
dev_err(&intf->dev, "out of memory (ctrl buffer alloc)\n");
goto alloc_fail2;
}
acm->ctrl_buffer = buf;
if (acm_write_buffers_alloc(acm) < 0) {
dev_err(&intf->dev, "out of memory (write buffer alloc)\n");
goto alloc_fail4;
}
acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL);
if (!acm->ctrlurb) {
dev_err(&intf->dev, "out of memory (ctrlurb kmalloc)\n");
goto alloc_fail5;
}
for (i = 0; i < num_rx_buf; i++) {
struct acm_rb *rb = &(acm->read_buffers[i]);
struct urb *urb;
rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL,
&rb->dma);
if (!rb->base) {
dev_err(&intf->dev, "out of memory "
"(read bufs usb_alloc_coherent)\n");
goto alloc_fail6;
}
rb->index = i;
rb->instance = acm;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
dev_err(&intf->dev,
"out of memory (read urbs usb_alloc_urb)\n");
goto alloc_fail6;
}
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
urb->transfer_dma = rb->dma;
if (acm->is_int_ep) {
usb_fill_int_urb(urb, acm->dev,
acm->rx_endpoint,
rb->base,
acm->readsize,
acm_read_bulk_callback, rb,
acm->bInterval);
} else {
usb_fill_bulk_urb(urb, acm->dev,
acm->rx_endpoint,
rb->base,
acm->readsize,
acm_read_bulk_callback, rb);
}
acm->read_urbs[i] = urb;
__set_bit(i, &acm->read_urbs_free);
}
for (i = 0; i < ACM_NW; i++) {
struct acm_wb *snd = &(acm->wb[i]);
snd->urb = usb_alloc_urb(0, GFP_KERNEL);
if (snd->urb == NULL) {
dev_err(&intf->dev,
"out of memory (write urbs usb_alloc_urb)\n");
goto alloc_fail7;
}
if (usb_endpoint_xfer_int(epwrite))
usb_fill_int_urb(snd->urb, usb_dev,
usb_sndintpipe(usb_dev, epwrite->bEndpointAddress),
NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval);
else
usb_fill_bulk_urb(snd->urb, usb_dev,
usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
NULL, acm->writesize, acm_write_bulk, snd);
snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
snd->instance = acm;
}
usb_set_intfdata(intf, acm);
i = device_create_file(&intf->dev, &dev_attr_bmCapabilities);
if (i < 0)
goto alloc_fail7;
if (cfd) { /* export the country data */
acm->country_codes = kmalloc(cfd->bLength - 4, GFP_KERNEL);
if (!acm->country_codes)
goto skip_countries;
acm->country_code_size = cfd->bLength - 4;
memcpy(acm->country_codes, (u8 *)&cfd->wCountyCode0,
cfd->bLength - 4);
acm->country_rel_date = cfd->iCountryCodeRelDate;
i = device_create_file(&intf->dev, &dev_attr_wCountryCodes);
if (i < 0) {
kfree(acm->country_codes);
acm->country_codes = NULL;
acm->country_code_size = 0;
goto skip_countries;
}
i = device_create_file(&intf->dev,
&dev_attr_iCountryCodeRelDate);
if (i < 0) {
device_remove_file(&intf->dev, &dev_attr_wCountryCodes);
kfree(acm->country_codes);
acm->country_codes = NULL;
acm->country_code_size = 0;
goto skip_countries;
}
}
skip_countries:
usb_fill_int_urb(acm->ctrlurb, usb_dev,
usb_rcvintpipe(usb_dev, epctrl->bEndpointAddress),
acm->ctrl_buffer, ctrlsize, acm_ctrl_irq, acm,
/* works around buggy devices */
epctrl->bInterval ? epctrl->bInterval : 0xff);
acm->ctrlurb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
acm->ctrlurb->transfer_dma = acm->ctrl_dma;
dev_info(&intf->dev, "ttyACM%d: USB ACM device\n", minor);
acm_set_control(acm, acm->ctrlout);
acm->line.dwDTERate = cpu_to_le32(9600);
acm->line.bDataBits = 8;
acm_set_line(acm, &acm->line);
usb_driver_claim_interface(&acm_driver, data_interface, acm);
usb_set_intfdata(data_interface, acm);
usb_get_intf(control_interface);
tty_register_device(acm_tty_driver, minor, &control_interface->dev);
acm_table[minor] = acm;
return 0;
alloc_fail7:
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);
alloc_fail6:
for (i = 0; i < num_rx_buf; i++)
usb_free_urb(acm->read_urbs[i]);
acm_read_buffers_free(acm);
usb_free_urb(acm->ctrlurb);
alloc_fail5:
acm_write_buffers_free(acm);
alloc_fail4:
usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
alloc_fail2:
kfree(acm);
alloc_fail:
return -ENOMEM;
}
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status = -1;
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
struct usb_cdc_union_desc *cdc_union;
struct usb_cdc_ether_desc *cdc_ether;
struct usb_driver *driver = driver_of(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
struct usb_cdc_parsed_header hdr;
BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
sizeof(struct qmi_wwan_state)));
/* set up initial state */
info->control = intf;
info->data = intf;
/* and a number of CDC descriptors */
cdc_parse_cdc_header(&hdr, intf, buf, len);
cdc_union = hdr.usb_cdc_union_desc;
cdc_ether = hdr.usb_cdc_ether_desc;
/* Use separate control and data interfaces if we found a CDC Union */
if (cdc_union) {
info->data = usb_ifnum_to_if(dev->udev,
cdc_union->bSlaveInterface0);
if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
!info->data) {
dev_err(&intf->dev,
"bogus CDC Union: master=%u, slave=%u\n",
cdc_union->bMasterInterface0,
cdc_union->bSlaveInterface0);
/* ignore and continue... */
cdc_union = NULL;
info->data = intf;
}
}
/* errors aren't fatal - we can live with the dynamic address */
if (cdc_ether) {
dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
}
/* claim data interface and set it up */
if (info->control != info->data) {
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
goto err;
}
status = qmi_wwan_register_subdriver(dev);
if (status < 0 && info->control != info->data) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
}
/* disabling remote wakeup on MDM9x30 devices has the same
* effect as clearing DTR. The device will not respond to QMI
* requests until we set DTR again. This is similar to a
* QMI_CTL SYNC request, clearing a lot of firmware state
* including the client ID allocations.
*
* Our usage model allows a session to span multiple
* open/close events, so we must prevent the firmware from
* clearing out state the clients might need.
*
* MDM9x30 is the first QMI chipset with USB3 support. Abuse
* this fact to enable the quirk.
*/
if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
qmi_wwan_manage_power(dev, 1);
qmi_wwan_change_dtr(dev, true);
}
/* Never use the same address on both ends of the link, even if the
* buggy firmware told us to. Or, if device is assigned the well-known
* buggy firmware MAC address, replace it with a random address,
*/
if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
eth_hw_addr_random(dev->net);
/* make MAC addr easily distinguishable from an IP header */
if (possibly_iphdr(dev->net->dev_addr)) {
dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
}
dev->net->netdev_ops = &qmi_wwan_netdev_ops;
dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
err:
return status;
}
static void * CDCEther_probe( struct usb_device *usb, unsigned int ifnum,
const struct usb_device_id *id)
{
struct net_device *net;
ether_dev_t *ether_dev;
int rc;
// First we should check the active configuration to see if
// any other driver has claimed any of the interfaces.
if ( check_for_claimed_interfaces( usb->actconfig ) ) {
// Someone has already put there grubby paws on this device.
// We don't want it now...
return NULL;
}
// We might be finding a device we can use.
// We all go ahead and allocate our storage space.
// We need to because we have to start filling in the data that
// we are going to need later.
if(!(ether_dev = kmalloc(sizeof(ether_dev_t), GFP_KERNEL))) {
err("out of memory allocating device structure");
return NULL;
}
// Zero everything out.
memset(ether_dev, 0, sizeof(ether_dev_t));
// Let's see if we can find a configuration we can use.
rc = find_valid_configuration( usb, ether_dev );
if (rc) {
// Nope we couldn't find one we liked.
// This device was not meant for us to control.
kfree( ether_dev );
return NULL;
}
// Now that we FOUND a configuration. let's try to make the
// device go into it.
if ( usb_set_configuration( usb, ether_dev->bConfigurationValue ) ) {
err("usb_set_configuration() failed");
kfree( ether_dev );
return NULL;
}
// Now set the communication interface up as required.
if (usb_set_interface(usb, ether_dev->comm_bInterfaceNumber, ether_dev->comm_bAlternateSetting)) {
err("usb_set_interface() failed");
kfree( ether_dev );
return NULL;
}
// Only turn traffic on right now if we must...
if (ether_dev->data_interface_altset_num_without_traffic >= 0) {
// We found an alternate setting for the data
// interface that allows us to turn off traffic.
// We should use it.
if (usb_set_interface( usb,
ether_dev->data_bInterfaceNumber,
ether_dev->data_bAlternateSetting_without_traffic)) {
err("usb_set_interface() failed");
kfree( ether_dev );
return NULL;
}
} else {
// We didn't find an alternate setting for the data
// interface that would let us turn off traffic.
// Oh well, let's go ahead and do what we must...
if (usb_set_interface( usb,
ether_dev->data_bInterfaceNumber,
ether_dev->data_bAlternateSetting_with_traffic)) {
err("usb_set_interface() failed");
kfree( ether_dev );
return NULL;
}
}
// Now we need to get a kernel Ethernet interface.
net = init_etherdev( NULL, 0 );
if ( !net ) {
// Hmm... The kernel is not sharing today...
// Fine, we didn't want it anyway...
err( "Unable to initialize ethernet device" );
kfree( ether_dev );
return NULL;
}
// Now that we have an ethernet device, let's set it up
// (And I don't mean "set [it] up the bomb".)
net->priv = ether_dev;
net->open = CDCEther_open;
net->stop = CDCEther_close;
net->watchdog_timeo = CDC_ETHER_TX_TIMEOUT;
net->tx_timeout = CDCEther_tx_timeout; // TX timeout function
net->do_ioctl = CDCEther_ioctl;
net->hard_start_xmit = CDCEther_start_xmit;
net->set_multicast_list = CDCEther_set_multicast;
net->get_stats = CDCEther_netdev_stats;
net->mtu = ether_dev->wMaxSegmentSize - 14;
// We'll keep track of this information for later...
ether_dev->usb = usb;
ether_dev->net = net;
// and don't forget the MAC address.
set_ethernet_addr( ether_dev );
// Send a message to syslog about what we are handling
log_device_info( ether_dev );
// I claim this interface to be a CDC Ethernet Networking device
usb_driver_claim_interface( &CDCEther_driver,
&(usb->config[ether_dev->configuration_num].interface[ether_dev->comm_interface]),
ether_dev );
// I claim this interface to be a CDC Ethernet Networking device
usb_driver_claim_interface( &CDCEther_driver,
&(usb->config[ether_dev->configuration_num].interface[ether_dev->data_interface]),
ether_dev );
// Does this REALLY do anything???
usb_inc_dev_use( usb );
// TODO - last minute HACK
ether_dev->comm_ep_in = 5;
// Okay, we are finally done...
return NULL;
}
int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting)
{
const struct usb_cdc_union_desc *union_desc = NULL;
struct cdc_ncm_ctx *ctx;
struct usb_driver *driver;
u8 *buf;
int len;
int temp;
u8 iface_no;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
ctx->bh.data = (unsigned long)dev;
ctx->bh.func = cdc_ncm_txpath_bh;
atomic_set(&ctx->stop, 0);
spin_lock_init(&ctx->mtx);
/* store ctx pointer in device data field */
dev->data[0] = (unsigned long)ctx;
/* only the control interface can be successfully probed */
ctx->control = intf;
/* get some pointers */
driver = driver_of(intf);
buf = intf->cur_altsetting->extra;
len = intf->cur_altsetting->extralen;
/* parse through descriptors associated with control interface */
while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) {
if (buf[1] != USB_DT_CS_INTERFACE)
goto advance;
switch (buf[2]) {
case USB_CDC_UNION_TYPE:
if (buf[0] < sizeof(*union_desc))
break;
union_desc = (const struct usb_cdc_union_desc *)buf;
/* the master must be the interface we are probing */
if (intf->cur_altsetting->desc.bInterfaceNumber !=
union_desc->bMasterInterface0) {
dev_dbg(&intf->dev, "bogus CDC Union\n");
goto error;
}
ctx->data = usb_ifnum_to_if(dev->udev,
union_desc->bSlaveInterface0);
break;
case USB_CDC_ETHERNET_TYPE:
if (buf[0] < sizeof(*(ctx->ether_desc)))
break;
ctx->ether_desc =
(const struct usb_cdc_ether_desc *)buf;
break;
case USB_CDC_NCM_TYPE:
if (buf[0] < sizeof(*(ctx->func_desc)))
break;
ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf;
break;
case USB_CDC_MBIM_TYPE:
if (buf[0] < sizeof(*(ctx->mbim_desc)))
break;
ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf;
break;
case USB_CDC_MBIM_EXTENDED_TYPE:
if (buf[0] < sizeof(*(ctx->mbim_extended_desc)))
break;
ctx->mbim_extended_desc =
(const struct usb_cdc_mbim_extended_desc *)buf;
break;
default:
break;
}
advance:
/* advance to next descriptor */
temp = buf[0];
buf += temp;
len -= temp;
}
/* some buggy devices have an IAD but no CDC Union */
if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
}
/* check if we got everything */
if (!ctx->data || (!ctx->mbim_desc && !ctx->ether_desc)) {
dev_dbg(&intf->dev, "CDC descriptors missing\n");
goto error;
}
/* claim data interface, if different from control */
if (ctx->data != ctx->control) {
temp = usb_driver_claim_interface(driver, ctx->data, dev);
if (temp) {
dev_dbg(&intf->dev, "failed to claim data intf\n");
goto error;
}
}
iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
/* reset data interface */
temp = usb_set_interface(dev->udev, iface_no, 0);
if (temp) {
dev_dbg(&intf->dev, "set interface failed\n");
goto error2;
}
/* configure data interface */
temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
if (temp) {
dev_dbg(&intf->dev, "set interface failed\n");
goto error2;
}
cdc_ncm_find_endpoints(dev, ctx->data);
cdc_ncm_find_endpoints(dev, ctx->control);
if (!dev->in || !dev->out || !dev->status) {
dev_dbg(&intf->dev, "failed to collect endpoints\n");
goto error2;
}
/* initialize data interface */
if (cdc_ncm_setup(dev)) {
dev_dbg(&intf->dev, "cdc_ncm_setup() failed\n");
goto error2;
}
usb_set_intfdata(ctx->data, dev);
usb_set_intfdata(ctx->control, dev);
if (ctx->ether_desc) {
temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
if (temp) {
dev_dbg(&intf->dev, "failed to get mac address\n");
goto error2;
}
dev_info(&intf->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
}
/* usbnet use these values for sizing tx/rx queues */
dev->hard_mtu = ctx->tx_max;
dev->rx_urb_size = ctx->rx_max;
return 0;
error2:
usb_set_intfdata(ctx->control, NULL);
usb_set_intfdata(ctx->data, NULL);
if (ctx->data != ctx->control)
usb_driver_release_interface(driver, ctx->data);
error:
cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]);
dev->data[0] = 0;
dev_info(&intf->dev, "bind() failure\n");
return -ENODEV;
}
int usbsvn_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
const struct usb_cdc_union_desc *union_header = NULL;
const struct usb_host_interface *data_desc;
static struct usbsvn *svn;
struct usb_interface *data_intf;
struct usb_device *usbdev = interface_to_usbdev(intf);
u8 *data = intf->altsetting->extra;
int len = intf->altsetting->extralen;
int dev_id;
int err;
if (!share_svn) {
printk(KERN_ERR "%s: netdev not registed\n", __func__);
return -EINVAL;
}
svn = share_svn;
if (!len) {
if (intf->cur_altsetting->endpoint->extralen &&
intf->cur_altsetting->endpoint->extra) {
dev_dbg(&intf->dev,
"Seeking extra descriptors on endpoint\n");
len = intf->cur_altsetting->endpoint->extralen;
data = intf->cur_altsetting->endpoint->extra;
} else {
dev_err(&intf->dev,
"Zero length descriptor references\n");
return -EINVAL;
}
}
while (len > 0) {
/* bDescriptorType */
if (data[1] == USB_DT_CS_INTERFACE) {
/* bDescriptorSubType */
switch (data[2]) {
case USB_CDC_UNION_TYPE:
if (union_header)
break;
union_header =
(struct usb_cdc_union_desc *)data;
break;
default:
break;
}
}
data += data[0];
len -= data[0];
}
if (!union_header) {
dev_err(&intf->dev, "USB CDC isn't union type\n");
return -EINVAL;
}
data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
if (!data_intf)
return -ENODEV;
data_desc = data_intf->altsetting;
/* To detect usb device order probed */
dev_id = intf->altsetting->desc.bInterfaceNumber / 2;
if (dev_id >= USBSVN_DEVNUM_MAX) {
dev_err(&intf->dev, "Device id %d cannot support\n", dev_id);
return -EINVAL;
}
printk(KERN_ERR "%s: probe dev_id=%d\n", __func__, dev_id);
if (dev_id > 0)
goto skip_netdev;
svn->usbdev = usbdev;
svn->driver_info = (unsigned long)id->driver_info;
/* FIXME: Does need this indeed? */
usbdev->autosuspend_delay = msecs_to_jiffies(200); /* 200ms */
if (!svn->driver_info) {
schedule_delayed_work(&svn->pm_runtime_work,
msecs_to_jiffies(10000));
}
svn->usbsvn_connected = 1;
svn->flow_suspend = 0;
skip_netdev:
if (!svn->driver_info) {
svn = share_svn;
if (!svn) {
dev_err(&intf->dev,
"svnet device doesn't be allocated\n");
err = ENOMEM;
goto out;
}
}
usb_get_dev(usbdev);
svn->devdata[dev_id].data_intf = data_intf;
/* Endpoints */
if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
svn->devdata[dev_id].rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
svn->devdata[dev_id].tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
} else {
svn->devdata[dev_id].rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
svn->devdata[dev_id].tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
}
err = usb_driver_claim_interface(&usbsvn_driver, data_intf, svn);
if (err < 0)
goto out;
usb_set_intfdata(intf, svn);
svn->dev_count++;
if (dev_id == 0)
dev_info(&usbdev->dev, "USB CDC SVNET device found\n");
pm_suspend_ignore_children(&intf->dev, true);
svn->devdata[dev_id].disconnected = 0;
return 0;
out:
usb_set_intfdata(intf, NULL);
return err;
}
static int __devinit cnxthwusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
#endif
{
int i;
struct usb_interface *pUsbDataInterface, *pUsbCommInterface;
POS_DEVNODE pDevNode = NULL;
PUSBOSHAL pUsbOsHal = NULL;
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
struct usb_device *pUsbDevice = interface_to_usbdev(intf);
__u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
#endif
#if TARGET_HCF_FAMILY
dbg("%s: pUsbDevice=%p ifnum=%d id=%p bConfigurationValue=%d", __FUNCTION__, pUsbDevice, ifnum, id, pUsbDevice->config[0].CFGDESC(bConfigurationValue));
if (((USB_BYTEORDER16(pUsbDevice->descriptor.idVendor) != USB_AAPL_VENDOR_ID) &&
(USB_BYTEORDER16(pUsbDevice->descriptor.idVendor) != USB_CNXT_VENDOR_ID)) ||
((USB_BYTEORDER16(pUsbDevice->descriptor.idProduct) != USB_AAPL_PRODUCT_ID) &&
(USB_BYTEORDER16(pUsbDevice->descriptor.idProduct) != USB_CNXT_PRODUCT_ID))) {
err("Not the one we are interested about");
goto exit;
}
#else
dbg("%s: pUsbDevice=%p ifnum=%d id=%p", __FUNCTION__, pUsbDevice, ifnum, id);
#endif
if(pUsbDevice->descriptor.bNumConfigurations != 1) {
err("Wrong number of device configurations (%d)", pUsbDevice->descriptor.bNumConfigurations);
goto exit;
}
if(pUsbDevice->actconfig->CFGDESC(bNumInterfaces) != 2) {
err("Wrong number of device interfaces (%d)", pUsbDevice->actconfig->CFGDESC(bNumInterfaces));
goto exit;
}
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
pUsbDataInterface = pUsbDevice->actconfig->interface + 0;
#else
pUsbDataInterface = pUsbDevice->actconfig->interface[0];
#endif
if(pUsbDataInterface->num_altsetting != 1) {
warn("DataInterface has more than one alternate setting (%d)", pUsbDataInterface->num_altsetting);
}
if(pUsbDataInterface->altsetting->CFGDESC(bNumEndpoints) != DATA_PIPE_NUM) {
err("Wrong number of endpoints (%d) for DataInterface", pUsbDataInterface->altsetting->CFGDESC(bNumEndpoints));
goto exit;
}
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
pUsbCommInterface = pUsbDevice->actconfig->interface + 1;
#else
pUsbCommInterface = pUsbDevice->actconfig->interface[1];
#endif
if(pUsbCommInterface->num_altsetting != 1) {
warn("CommInterface has more than one alternate setting (%d)", pUsbCommInterface->num_altsetting);
}
if(pUsbCommInterface->altsetting->CFGDESC(bNumEndpoints) != INT_PIPE_NUM) {
err("Wrong number of endpoints (%d) for CommInterface", pUsbCommInterface->altsetting->CFGDESC(bNumEndpoints));
goto exit;
}
if(usb_interface_claimed(pUsbCommInterface)) {
err("CommInterface already claimed");
goto exit;
}
pUsbOsHal = kmalloc(sizeof(USBOSHAL), GFP_KERNEL);
if (!pUsbOsHal) {
err ("Out of memory");
goto exit;
}
memset(pUsbOsHal, 0, sizeof(USBOSHAL));
for(i=0; i < pUsbDataInterface->altsetting->CFGDESC(bNumEndpoints); i++) {
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
dbg("%s: pUsbDataInterface endpoint=%d len=%d type=0x%02x addr=0x%02x attr=0x%02x maxsize=%d interval=%d",
__FUNCTION__,
i,
pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bLength),
pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bDescriptorType),
pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress),
pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bmAttributes),
USB_BYTEORDER16(pUsbDataInterface->altsetting->endpoint[i].CFGDESC(wMaxPacketSize))&0x7ff,
pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bInterval)
);
#endif
if (pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) == 0x81) {
pUsbOsHal->DataInPipe = usb_rcvbulkpipe (pUsbDevice, pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) & USB_ENDPOINT_NUMBER_MASK);
} else if (pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) == 0x01) {
pUsbOsHal->DataOutPipe = usb_sndbulkpipe (pUsbDevice, pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) & USB_ENDPOINT_NUMBER_MASK);
} else if (pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) == 0x83) {
pUsbOsHal->DcpInPipe = usb_rcvbulkpipe (pUsbDevice, pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) & USB_ENDPOINT_NUMBER_MASK);
#if TARGET_HCF_FAMILY
} else if (pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) == 0x03) {
pUsbOsHal->DownloadPipe = usb_sndbulkpipe (pUsbDevice, pUsbDataInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) & USB_ENDPOINT_NUMBER_MASK);
if((USB_BYTEORDER16(pUsbDataInterface->altsetting->endpoint[i].CFGDESC(wMaxPacketSize))&0x7ff) == 64)
pUsbOsHal->UpdateEEPROM = TRUE;
#endif
}
}
for(i=0; i < pUsbCommInterface->altsetting->CFGDESC(bNumEndpoints); i++) {
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
dbg("%s: pUsbCommInterface endpoint=%d len=%d type=0x%02x addr=0x%02x attr=0x%02x maxsize=%d interval=%d",
__FUNCTION__,
i,
pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bLength),
pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bDescriptorType),
pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress),
pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bmAttributes),
USB_BYTEORDER16(pUsbCommInterface->altsetting->endpoint[i].CFGDESC(wMaxPacketSize))&0x7ff,
pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bInterval)
);
#endif
if (pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) == 0x82) {
pUsbOsHal->NotifyPipe = usb_rcvintpipe (pUsbDevice, pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bEndpointAddress) & USB_ENDPOINT_NUMBER_MASK);
pUsbOsHal->NotifyInterval = pUsbCommInterface->altsetting->endpoint[i].CFGDESC(bInterval);
pUsbOsHal->MaxNotifySize = USB_BYTEORDER16(pUsbCommInterface->altsetting->endpoint[i].CFGDESC(wMaxPacketSize))&0x7ff;
}
}
if(!pUsbOsHal->DataInPipe ||
!pUsbOsHal->DataOutPipe ||
#if TARGET_HCF_FAMILY
!pUsbOsHal->DcpInPipe ||
!pUsbOsHal->DownloadPipe ||
#endif
!pUsbOsHal->NotifyPipe) {
err("Missing endpoint(s)");
goto exit;
}
if(!pUsbOsHal->NotifyInterval)
pUsbOsHal->NotifyInterval = 1; // ms
pUsbOsHal->pUsbDevice = pUsbDevice;
pUsbOsHal->pUsbCommInterface = pUsbCommInterface;
pUsbOsHal->pUsbDataInterface = pUsbDataInterface;
pUsbOsHal->ControlRequestEvent = OsEventCreate("USB ControlRequestEvent");
if(!pUsbOsHal->ControlRequestEvent) {
goto exit;
}
pDevNode = kmalloc(sizeof(*pDevNode), GFP_KERNEL);
if(!pDevNode) {
err ("Out of memory");
goto exit;
}
memset(pDevNode, 0, sizeof(*pDevNode));
pDevNode->hwDev = pUsbOsHal;
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
pDevNode->hwDevLink = &pUsbDevice->dev;
#endif
pDevNode->hwModule = THIS_MODULE;
strncpy(pDevNode->hwProfile, (char*)CNXTHWCFG("cadmus2"), sizeof(pDevNode->hwProfile));
pDevNode->hwProfile[sizeof(pDevNode->hwProfile)-1] = '\0';
snprintf(pDevNode->hwInstName, sizeof(pDevNode->hwInstName), "USB-%04x:%04x",
USB_BYTEORDER16(pUsbDevice->descriptor.idVendor), USB_BYTEORDER16(pUsbDevice->descriptor.idProduct));
#ifdef CNXTHWUSB_TYPE
pDevNode->hwType = CNXTHWUSB_TYPE;
pDevNode->hwIf = GetHwFuncs();
#endif
pDevNode->pmControl = cnxthw_DevMgrPMControl;
pDevNode->osPageOffset = PAGE_OFFSET;
usb_driver_claim_interface(&cnxthwusb_driver, pUsbCommInterface, pDevNode);
if(!OsUsbAllocateUrbs(pUsbOsHal)) {
err("Cannot allocate URBs");
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
usb_set_intfdata (pUsbCommInterface, NULL);
#endif
usb_driver_release_interface(&cnxthwusb_driver, pUsbCommInterface);
goto exit;
}
pUsbOsHal->bActive = TRUE;
if(OsUsbFWDownload (pUsbOsHal)) {
err("Firmware download failed");
pUsbOsHal->bActive = FALSE;
OsUsbFreeUrbs(pUsbOsHal);
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
usb_set_intfdata (pUsbCommInterface, NULL);
#endif
usb_driver_release_interface(&cnxthwusb_driver, pUsbCommInterface);
goto exit;
}
if (cnxt_serial_add(pDevNode, 0, pUsbDevice, ifnum, THIS_MODULE) < 0) {
pUsbOsHal->bActive = FALSE;
OsUsbFreeUrbs(pUsbOsHal);
#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) )
usb_set_intfdata (pUsbCommInterface, NULL);
#endif
usb_driver_release_interface(&cnxthwusb_driver, pUsbCommInterface);
goto exit;
}
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
return pDevNode;
#else
usb_set_intfdata (intf, pDevNode);
return 0;
#endif
exit:
if(pDevNode) {
kfree(pDevNode);
}
if(pUsbOsHal) {
if(pUsbOsHal->ControlRequestEvent)
OsEventDestroy(pUsbOsHal->ControlRequestEvent);
kfree(pUsbOsHal);
}
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
return NULL;
#else
return -ENODEV;
#endif
}
int cdc_ncm_bind(struct if_usb_devdata *pipe_data,
struct usb_interface *intf, struct usb_link_device *usb_ld)
{
struct cdc_ncm_ctx *ctx;
struct usb_driver *usbdrv = to_usb_driver(intf->dev.driver);
struct usb_device *usbdev = interface_to_usbdev(intf);
unsigned char *buf = intf->cur_altsetting->extra;
int buflen = intf->cur_altsetting->extralen;
const struct usb_cdc_union_desc *union_desc;
int temp;
u8 iface_no;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (ctx == NULL)
return -ENODEV;
hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
ctx->bh.data = (unsigned long)pipe_data;
ctx->bh.func = cdc_ncm_txpath_bh;
atomic_set(&ctx->stop, 0);
spin_lock_init(&ctx->mtx);
/* store ctx pointer in device data field */
pipe_data->sedata = (void *)ctx;
ctx->intf = intf;
/* parse through descriptors associated with control interface */
while ((buflen > 0) && (buf[0] > 2) && (buf[0] <= buflen)) {
if (buf[1] == USB_DT_CS_INTERFACE) {
switch (buf[2]) {
case USB_CDC_UNION_TYPE:
if (buf[0] < sizeof(*union_desc))
break;
union_desc =
(const struct usb_cdc_union_desc *)buf;
ctx->control = usb_ifnum_to_if(usbdev,
union_desc->bMasterInterface0);
ctx->data = usb_ifnum_to_if(usbdev,
union_desc->bSlaveInterface0);
break;
case USB_CDC_ETHERNET_TYPE:
if (buf[0] < sizeof(*(ctx->ether_desc)))
break;
ctx->ether_desc =
(const struct usb_cdc_ether_desc *)buf;
break;
case USB_CDC_NCM_TYPE:
if (buf[0] < sizeof(*(ctx->func_desc)))
break;
ctx->func_desc =
(const struct usb_cdc_ncm_desc *)buf;
break;
default:
break;
}
}
temp = buf[0];
buf += temp;
buflen -= temp;
}
/* check if we got everything */
if ((ctx->control == NULL) || (ctx->data == NULL) ||
(ctx->ether_desc == NULL) || (ctx->control != intf))
goto error;
pipe_data->usbdev = usb_get_dev(usbdev);
pipe_data->usb_ld = usb_ld;
pipe_data->disconnected = 0;
pipe_data->state = STATE_RESUMED;
/* claim interfaces, if any */
temp = usb_driver_claim_interface(usbdrv, ctx->data, pipe_data);
if (temp)
goto error;
iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
/* reset data interface */
temp = usb_set_interface(usbdev, iface_no, 0);
if (temp)
goto error2;
/* initialize data interface */
if (cdc_ncm_setup(pipe_data))
goto error2;
/* configure data interface */
temp = usb_set_interface(usbdev, iface_no, 1);
if (temp)
goto error2;
cdc_ncm_find_endpoints(ctx, ctx->data);
cdc_ncm_find_endpoints(ctx, ctx->control);
if ((ctx->in_ep == NULL) || (ctx->out_ep == NULL) ||
(ctx->status_ep == NULL))
goto error2;
usb_set_intfdata(ctx->data, pipe_data);
usb_set_intfdata(ctx->control, pipe_data);
usb_set_intfdata(ctx->intf, pipe_data);
pipe_data->rx_pipe = usb_rcvbulkpipe(usbdev,
ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
pipe_data->tx_pipe = usb_sndbulkpipe(usbdev,
ctx->out_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
pipe_data->status = ctx->status_ep;
pipe_data->rx_buf_size = ctx->rx_max;
mif_debug("EP status: %x, tx:%x, rx:%x\n",
ctx->status_ep->desc.bEndpointAddress,
ctx->in_ep->desc.bEndpointAddress,
ctx->out_ep->desc.bEndpointAddress);
temp = cdc_ncm_setup_ethernet_address(pipe_data);
if (temp)
goto error2;
/*
* We should get an event when network connection is "connected" or
* "disconnected". Set network connection in "disconnected" state
* (carrier is OFF) during attach, so the IP network stack does not
* start IPv6 negotiation and more.
*/
netif_carrier_off(pipe_data->iod->ndev);
ctx->tx_speed = ctx->rx_speed = 0;
if (pipe_data->iod->ndev->mtu != (ctx->max_datagram_size - ETH_HLEN))
pipe_data->iod->ndev->mtu = ctx->max_datagram_size - ETH_HLEN;
return 0;
error2:
usb_set_intfdata(ctx->control, NULL);
usb_set_intfdata(ctx->data, NULL);
usb_driver_release_interface(usbdrv, ctx->data);
error:
cdc_ncm_free((struct cdc_ncm_ctx *)pipe_data->sedata);
pipe_data->sedata = NULL;
mif_err("bind() failure\n");
return -ENODEV;
}
/*
* probes control interface, claims data interface, collects the bulk
* endpoints, activates data interface (if needed), maybe sets MTU.
* all pure cdc, except for certain firmware workarounds, and knowing
* that rndis uses one different rule.
*/
int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
{
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *d;
struct cdc_state *info = (void *) &dev->data;
int status;
int rndis;
bool android_rndis_quirk = false;
struct usb_driver *driver = driver_of(intf);
struct usb_cdc_mdlm_desc *desc = NULL;
struct usb_cdc_mdlm_detail_desc *detail = NULL;
if (sizeof dev->data < sizeof *info)
return -EDOM;
/* expect strict spec conformance for the descriptors, but
* cope with firmware which stores them in the wrong place
*/
if (len == 0 && dev->udev->actconfig->extralen) {
/* Motorola SB4100 (and others: Brad Hards says it's
* from a Broadcom design) put CDC descriptors here
*/
buf = dev->udev->actconfig->extra;
len = dev->udev->actconfig->extralen;
dev_dbg(&intf->dev, "CDC descriptors on config\n");
}
/* Maybe CDC descriptors are after the endpoint? This bug has
* been seen on some 2Wire Inc RNDIS-ish products.
*/
if (len == 0) {
struct usb_host_endpoint *hep;
hep = intf->cur_altsetting->endpoint;
if (hep) {
buf = hep->extra;
len = hep->extralen;
}
if (len)
dev_dbg(&intf->dev,
"CDC descriptors on endpoint\n");
}
/* this assumes that if there's a non-RNDIS vendor variant
* of cdc-acm, it'll fail RNDIS requests cleanly.
*/
rndis = (is_rndis(&intf->cur_altsetting->desc) ||
is_activesync(&intf->cur_altsetting->desc) ||
is_wireless_rndis(&intf->cur_altsetting->desc));
memset(info, 0, sizeof *info);
info->control = intf;
while (len > 3) {
if (buf [1] != USB_DT_CS_INTERFACE)
goto next_desc;
/* use bDescriptorSubType to identify the CDC descriptors.
* We expect devices with CDC header and union descriptors.
* For CDC Ethernet we need the ethernet descriptor.
* For RNDIS, ignore two (pointless) CDC modem descriptors
* in favor of a complicated OID-based RPC scheme doing what
* CDC Ethernet achieves with a simple descriptor.
*/
switch (buf [2]) {
case USB_CDC_HEADER_TYPE:
if (info->header) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto bad_desc;
}
info->header = (void *) buf;
if (info->header->bLength != sizeof *info->header) {
dev_dbg(&intf->dev, "CDC header len %u\n",
info->header->bLength);
goto bad_desc;
}
break;
case USB_CDC_ACM_TYPE:
/* paranoia: disambiguate a "real" vendor-specific
* modem interface from an RNDIS non-modem.
*/
if (rndis) {
struct usb_cdc_acm_descriptor *acm;
acm = (void *) buf;
if (acm->bmCapabilities) {
dev_dbg(&intf->dev,
"ACM capabilities %02x, "
"not really RNDIS?\n",
acm->bmCapabilities);
goto bad_desc;
}
}
break;
case USB_CDC_UNION_TYPE:
if (info->u) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto bad_desc;
}
info->u = (void *) buf;
if (info->u->bLength != sizeof *info->u) {
dev_dbg(&intf->dev, "CDC union len %u\n",
info->u->bLength);
goto bad_desc;
}
/* we need a master/control interface (what we're
* probed with) and a slave/data interface; union
* descriptors sort this all out.
*/
info->control = usb_ifnum_to_if(dev->udev,
info->u->bMasterInterface0);
info->data = usb_ifnum_to_if(dev->udev,
info->u->bSlaveInterface0);
if (!info->control || !info->data) {
dev_dbg(&intf->dev,
"master #%u/%p slave #%u/%p\n",
info->u->bMasterInterface0,
info->control,
info->u->bSlaveInterface0,
info->data);
/* fall back to hard-wiring for RNDIS */
if (rndis) {
android_rndis_quirk = true;
goto next_desc;
}
goto bad_desc;
}
if (info->control != intf) {
dev_dbg(&intf->dev, "bogus CDC Union\n");
/* Ambit USB Cable Modem (and maybe others)
* interchanges master and slave interface.
*/
if (info->data == intf) {
info->data = info->control;
info->control = intf;
} else
goto bad_desc;
}
/* a data interface altsetting does the real i/o */
d = &info->data->cur_altsetting->desc;
if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
dev_dbg(&intf->dev, "slave class %u\n",
d->bInterfaceClass);
goto bad_desc;
}
break;
case USB_CDC_ETHERNET_TYPE:
if (info->ether) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto bad_desc;
}
info->ether = (void *) buf;
if (info->ether->bLength != sizeof *info->ether) {
dev_dbg(&intf->dev, "CDC ether len %u\n",
info->ether->bLength);
goto bad_desc;
}
dev->hard_mtu = le16_to_cpu(
info->ether->wMaxSegmentSize);
/* because of Zaurus, we may be ignoring the host
* side link address we were given.
*/
break;
case USB_CDC_MDLM_TYPE:
if (desc) {
dev_dbg(&intf->dev, "extra MDLM descriptor\n");
goto bad_desc;
}
desc = (void *)buf;
if (desc->bLength != sizeof(*desc))
goto bad_desc;
if (memcmp(&desc->bGUID, mbm_guid, 16))
goto bad_desc;
break;
case USB_CDC_MDLM_DETAIL_TYPE:
if (detail) {
dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
goto bad_desc;
}
detail = (void *)buf;
if (detail->bGuidDescriptorType == 0) {
if (detail->bLength < (sizeof(*detail) + 1))
goto bad_desc;
} else
goto bad_desc;
break;
}
next_desc:
len -= buf [0]; /* bLength */
buf += buf [0];
}
/* Microsoft ActiveSync based and some regular RNDIS devices lack the
* CDC descriptors, so we'll hard-wire the interfaces and not check
* for descriptors.
*
* Some Android RNDIS devices have a CDC Union descriptor pointing
* to non-existing interfaces. Ignore that and attempt the same
* hard-wired 0 and 1 interfaces.
*/
if (rndis && (!info->u || android_rndis_quirk)) {
info->control = usb_ifnum_to_if(dev->udev, 0);
info->data = usb_ifnum_to_if(dev->udev, 1);
if (!info->control || !info->data || info->control != intf) {
dev_dbg(&intf->dev,
"rndis: master #0/%p slave #1/%p\n",
info->control,
info->data);
goto bad_desc;
}
} else if (!info->header || !info->u || (!rndis && !info->ether)) {
dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
info->header ? "" : "header ",
info->u ? "" : "union ",
info->ether ? "" : "ether ");
goto bad_desc;
}
/* claim data interface and set it up ... with side effects.
* network traffic can't flow until an altsetting is enabled.
*/
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
return status;
status = usbnet_get_endpoints(dev, info->data);
if (status < 0) {
/* ensure immediate exit from usbnet_disconnect */
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return status;
}
/* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
dev->status = NULL;
if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
struct usb_endpoint_descriptor *desc;
dev->status = &info->control->cur_altsetting->endpoint [0];
desc = &dev->status->desc;
if (!usb_endpoint_is_int_in(desc) ||
(le16_to_cpu(desc->wMaxPacketSize)
< sizeof(struct usb_cdc_notification)) ||
!desc->bInterval) {
dev_dbg(&intf->dev, "bad notification endpoint\n");
dev->status = NULL;
}
}
if (rndis && !dev->status) {
dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return -ENODEV;
}
return 0;
bad_desc:
dev_info(&dev->udev->dev, "bad CDC descriptors\n");
return -ENODEV;
}
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status = -1;
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
struct usb_cdc_union_desc *cdc_union = NULL;
struct usb_cdc_ether_desc *cdc_ether = NULL;
u32 found = 0;
struct usb_driver *driver = driver_of(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state)));
/* control and data is shared? */
if (intf->cur_altsetting->desc.bNumEndpoints == 3) {
info->control = intf;
info->data = intf;
goto shared;
}
/* else require a single interrupt status endpoint on control intf */
if (intf->cur_altsetting->desc.bNumEndpoints != 1)
goto err;
/* and a number of CDC descriptors */
while (len > 3) {
struct usb_descriptor_header *h = (void *)buf;
/* ignore any misplaced descriptors */
if (h->bDescriptorType != USB_DT_CS_INTERFACE)
goto next_desc;
/* buf[2] is CDC descriptor subtype */
switch (buf[2]) {
case USB_CDC_HEADER_TYPE:
if (found & 1 << USB_CDC_HEADER_TYPE) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
dev_dbg(&intf->dev, "CDC header len %u\n", h->bLength);
goto err;
}
break;
case USB_CDC_UNION_TYPE:
if (found & 1 << USB_CDC_UNION_TYPE) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
dev_dbg(&intf->dev, "CDC union len %u\n", h->bLength);
goto err;
}
cdc_union = (struct usb_cdc_union_desc *)buf;
break;
case USB_CDC_ETHERNET_TYPE:
if (found & 1 << USB_CDC_ETHERNET_TYPE) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
dev_dbg(&intf->dev, "CDC ether len %u\n", h->bLength);
goto err;
}
cdc_ether = (struct usb_cdc_ether_desc *)buf;
break;
}
/*
* Remember which CDC functional descriptors we've seen. Works
* for all types we care about, of which USB_CDC_ETHERNET_TYPE
* (0x0f) is the highest numbered
*/
if (buf[2] < 32)
found |= 1 << buf[2];
next_desc:
len -= h->bLength;
buf += h->bLength;
}
/* did we find all the required ones? */
if (!(found & (1 << USB_CDC_HEADER_TYPE)) ||
!(found & (1 << USB_CDC_UNION_TYPE))) {
dev_err(&intf->dev, "CDC functional descriptors missing\n");
goto err;
}
/* verify CDC Union */
if (desc->bInterfaceNumber != cdc_union->bMasterInterface0) {
dev_err(&intf->dev, "bogus CDC Union: master=%u\n", cdc_union->bMasterInterface0);
goto err;
}
/* need to save these for unbind */
info->control = intf;
info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0);
if (!info->data) {
dev_err(&intf->dev, "bogus CDC Union: slave=%u\n", cdc_union->bSlaveInterface0);
goto err;
}
/* errors aren't fatal - we can live with the dynamic address */
if (cdc_ether) {
dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
}
/* claim data interface and set it up */
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
goto err;
shared:
status = qmi_wwan_register_subdriver(dev);
if (status < 0 && info->control != info->data) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
}
err:
return status;
}
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_endpoint_descriptor *ep_desc;
struct btusb_data *data;
struct hci_dev *hdev;
int i, version, err;
BT_DBG("intf %p id %p", intf, id);
/* interface numbers are hardcoded in the spec */
if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
return -ENODEV;
if (!id->driver_info) {
const struct usb_device_id *match;
match = usb_match_id(intf, blacklist_table);
if (match)
id = match;
}
if (id->driver_info == BTUSB_IGNORE)
return -ENODEV;
if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
return -ENODEV;
if (ignore_csr && id->driver_info & BTUSB_CSR)
return -ENODEV;
if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
return -ENODEV;
if (id->driver_info & BTUSB_ATH3012) {
struct usb_device *udev = interface_to_usbdev(intf);
version = get_rome_version(udev);
BT_INFO("Rome Version: 0x%x", version);
/* Old firmware would otherwise let ath3k driver load
* patch and sysconfig files */
if (version)
rome_download(udev);
else if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) {
BT_INFO("FW for ar3k is yet to be downloaded");
return -ENODEV;
}
}
data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
data->intr_ep = ep_desc;
continue;
}
if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
data->bulk_tx_ep = ep_desc;
continue;
}
if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
data->bulk_rx_ep = ep_desc;
continue;
}
}
if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
return -ENODEV;
data->cmdreq_type = USB_TYPE_CLASS;
data->udev = interface_to_usbdev(intf);
data->intf = intf;
spin_lock_init(&data->lock);
INIT_WORK(&data->work, btusb_work);
INIT_WORK(&data->waker, btusb_waker);
spin_lock_init(&data->txlock);
init_usb_anchor(&data->tx_anchor);
init_usb_anchor(&data->intr_anchor);
init_usb_anchor(&data->bulk_anchor);
init_usb_anchor(&data->isoc_anchor);
init_usb_anchor(&data->deferred);
hdev = hci_alloc_dev();
if (!hdev)
return -ENOMEM;
hdev->bus = HCI_USB;
hci_set_drvdata(hdev, data);
data->hdev = hdev;
SET_HCIDEV_DEV(hdev, &intf->dev);
hdev->open = btusb_open;
hdev->close = btusb_close;
hdev->flush = btusb_flush;
hdev->send = btusb_send_frame;
hdev->notify = btusb_notify;
if (id->driver_info & BTUSB_BCM92035)
hdev->setup = btusb_setup_bcm92035;
if (id->driver_info & BTUSB_INTEL)
hdev->setup = btusb_setup_intel;
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);
if (!reset)
set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
if (!disable_scofix)
set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
}
if (id->driver_info & BTUSB_BROKEN_ISOC)
data->isoc = NULL;
if (id->driver_info & BTUSB_DIGIANSWER) {
data->cmdreq_type = USB_TYPE_VENDOR;
set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
}
if (id->driver_info & BTUSB_CSR) {
struct usb_device *udev = data->udev;
/* Old firmware would otherwise execute USB reset */
if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
}
if (id->driver_info & BTUSB_SNIFFER) {
struct usb_device *udev = data->udev;
/* New sniffer firmware has crippled HCI interface */
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
data->isoc = NULL;
}
if (data->isoc) {
err = usb_driver_claim_interface(&btusb_driver,
data->isoc, data);
if (err < 0) {
hci_free_dev(hdev);
return err;
}
}
err = hci_register_dev(hdev);
if (err < 0) {
hci_free_dev(hdev);
return err;
}
usb_set_intfdata(intf, data);
usb_enable_autosuspend(data->udev);
return 0;
}
static int __devinit if_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_host_interface *data_desc;
struct usb_link_device *usb_ld =
(struct usb_link_device *)id->driver_info;
struct link_device *ld = &usb_ld->ld;
struct usb_interface *data_intf;
struct usb_device *usbdev = interface_to_usbdev(intf);
struct device *dev, *ehci_dev, *root_hub;
struct if_usb_devdata *pipe;
struct urb *urb;
int i;
int j;
int dev_id;
int err;
/* To detect usb device order probed */
dev_id = intf->cur_altsetting->desc.bInterfaceNumber;
if (dev_id >= IF_USB_DEVNUM_MAX) {
dev_err(&intf->dev, "Device id %d cannot support\n",
dev_id);
return -EINVAL;
}
if (!usb_ld) {
dev_err(&intf->dev,
"if_usb device doesn't be allocated\n");
err = ENOMEM;
goto out;
}
mif_info("probe dev_id=%d usb_device_id(0x%p), usb_ld (0x%p)\n",
dev_id, id, usb_ld);
usb_ld->usbdev = usbdev;
usb_get_dev(usbdev);
for (i = 0; i < IF_USB_DEVNUM_MAX; i++) {
data_intf = usb_ifnum_to_if(usbdev, i);
/* remap endpoint of RAW to no.1 for LTE modem */
if (i == 0)
pipe = &usb_ld->devdata[1];
else if (i == 1)
pipe = &usb_ld->devdata[0];
else
pipe = &usb_ld->devdata[i];
pipe->disconnected = 0;
pipe->data_intf = data_intf;
data_desc = data_intf->cur_altsetting;
/* Endpoints */
if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
pipe->rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
pipe->tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
pipe->rx_buf_size = 1024*4;
} else {
pipe->rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
pipe->tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
pipe->rx_buf_size = 1024*4;
}
if (i == 0) {
dev_info(&usbdev->dev, "USB IF USB device found\n");
} else {
err = usb_driver_claim_interface(&if_usb_driver,
data_intf, usb_ld);
if (err < 0) {
mif_err("failed to cliam usb interface\n");
goto out;
}
}
usb_set_intfdata(data_intf, usb_ld);
usb_ld->dev_count++;
pm_suspend_ignore_children(&data_intf->dev, true);
for (j = 0; j < URB_COUNT; j++) {
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb) {
mif_err("alloc urb fail\n");
err = -ENOMEM;
goto out2;
}
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
urb->transfer_buffer = usb_alloc_coherent(usbdev,
pipe->rx_buf_size, GFP_KERNEL,
&urb->transfer_dma);
if (!urb->transfer_buffer) {
mif_err(
"Failed to allocate transfer buffer\n");
usb_free_urb(urb);
err = -ENOMEM;
goto out2;
}
usb_fill_bulk_urb(urb, usbdev, pipe->rx_pipe,
urb->transfer_buffer, pipe->rx_buf_size,
usb_rx_complete, pipe);
usb_anchor_urb(urb, &pipe->urbs);
}
}
/* temporary call reset_resume */
atomic_set(&usb_ld->suspend_count, 1);
if_usb_reset_resume(data_intf);
atomic_set(&usb_ld->suspend_count, 0);
SET_HOST_ACTIVE(usb_ld->pdata, 1);
usb_ld->host_wake_timeout_flag = 0;
if (gpio_get_value(usb_ld->pdata->gpio_phone_active)) {
struct link_pm_data *pm_data = usb_ld->link_pm_data;
int delay = pm_data->autosuspend_delay_ms ?:
DEFAULT_AUTOSUSPEND_DELAY_MS;
pm_runtime_set_autosuspend_delay(&usbdev->dev, delay);
dev = &usbdev->dev;
if (dev->parent) {
dev_dbg(&usbdev->dev, "if_usb Runtime PM Start!!\n");
usb_enable_autosuspend(usb_ld->usbdev);
/* s5p-ehci runtime pm allow - usb phy suspend mode */
root_hub = &usbdev->bus->root_hub->dev;
ehci_dev = root_hub->parent;
mif_debug("ehci device = %s, %s\n",
dev_driver_string(ehci_dev),
dev_name(ehci_dev));
pm_runtime_allow(ehci_dev);
if (!pm_data->autosuspend)
pm_runtime_forbid(dev);
if (has_hub(usb_ld))
link_pm_preactive(pm_data);
pm_data->root_hub = root_hub;
}
usb_ld->flow_suspend = 0;
/* Queue work if skbs were pending before a disconnect/probe */
if (ld->sk_fmt_tx_q.qlen || ld->sk_raw_tx_q.qlen)
queue_delayed_work(ld->tx_wq, &ld->tx_delayed_work, 0);
usb_ld->if_usb_connected = 1;
/*USB3503*/
mif_debug("hub active complete\n");
usb_change_modem_state(usb_ld, STATE_ONLINE);
} else {
/*
* Callback to search the Mustek MDC800 on the USB Bus
*/
static void* mdc800_usb_probe (struct usb_device *dev ,unsigned int ifnum,
const struct usb_device_id *id)
{
int i,j;
struct usb_interface_descriptor *intf_desc;
int irq_interval=0;
dbg ("(mdc800_usb_probe) called.");
if (mdc800->dev != 0)
{
warn ("only one Mustek MDC800 is supported.");
return 0;
}
if (dev->descriptor.bNumConfigurations != 1)
{
err ("probe fails -> wrong Number of Configuration");
return 0;
}
intf_desc=&dev->actconfig->interface[ifnum].altsetting[0];
if (
( intf_desc->bInterfaceClass != 0xff )
|| ( intf_desc->bInterfaceSubClass != 0 )
|| ( intf_desc->bInterfaceProtocol != 0 )
|| ( intf_desc->bNumEndpoints != 4)
)
{
err ("probe fails -> wrong Interface");
return 0;
}
/* Check the Endpoints */
for (i=0; i<4; i++)
{
mdc800->endpoint[i]=-1;
for (j=0; j<4; j++)
{
if (mdc800_endpoint_equals (&intf_desc->endpoint [j],&mdc800_ed [i]))
{
mdc800->endpoint[i]=intf_desc->endpoint [j].bEndpointAddress ;
if (i==1)
{
irq_interval=intf_desc->endpoint [j].bInterval;
}
continue;
}
}
if (mdc800->endpoint[i] == -1)
{
err ("probe fails -> Wrong Endpoints.");
return 0;
}
}
usb_driver_claim_interface (&mdc800_usb_driver, &dev->actconfig->interface[ifnum], mdc800);
if (usb_set_interface (dev, ifnum, 0) < 0)
{
err ("MDC800 Configuration fails.");
return 0;
}
info ("Found Mustek MDC800 on USB.");
down (&mdc800->io_lock);
mdc800->dev=dev;
mdc800->open=0;
/* Setup URB Structs */
FILL_INT_URB (
mdc800->irq_urb,
mdc800->dev,
usb_rcvintpipe (mdc800->dev,mdc800->endpoint [1]),
mdc800->irq_urb_buffer,
8,
mdc800_usb_irq,
mdc800,
irq_interval
);
FILL_BULK_URB (
mdc800->write_urb,
mdc800->dev,
usb_sndbulkpipe (mdc800->dev, mdc800->endpoint[0]),
mdc800->write_urb_buffer,
8,
mdc800_usb_write_notify,
mdc800
);
FILL_BULK_URB (
mdc800->download_urb,
mdc800->dev,
usb_rcvbulkpipe (mdc800->dev, mdc800->endpoint [3]),
mdc800->download_urb_buffer,
64,
mdc800_usb_download_notify,
mdc800
);
mdc800->state=READY;
up (&mdc800->io_lock);
return mdc800;
}
int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
static const char ifname[] = "usbpn%d";
const struct usb_cdc_union_desc *union_header = NULL;
const struct usb_host_interface *data_desc;
struct usb_interface *data_intf;
struct usb_device *usbdev = interface_to_usbdev(intf);
struct net_device *dev;
struct usbpn_dev *pnd;
u8 *data;
int phonet = 0;
int len, err;
data = intf->altsetting->extra;
len = intf->altsetting->extralen;
while (len >= 3) {
u8 dlen = data[0];
if (dlen < 3)
return -EINVAL;
/* bDescriptorType */
if (data[1] == USB_DT_CS_INTERFACE) {
/* bDescriptorSubType */
switch (data[2]) {
case USB_CDC_UNION_TYPE:
if (union_header || dlen < 5)
break;
union_header =
(struct usb_cdc_union_desc *)data;
break;
case 0xAB:
phonet = 1;
break;
}
}
data += dlen;
len -= dlen;
}
if (!union_header || !phonet)
return -EINVAL;
data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
if (data_intf == NULL)
return -ENODEV;
/* Data interface has one inactive and one active setting */
if (data_intf->num_altsetting != 2)
return -EINVAL;
if (data_intf->altsetting[0].desc.bNumEndpoints == 0
&& data_intf->altsetting[1].desc.bNumEndpoints == 2)
data_desc = data_intf->altsetting + 1;
else
if (data_intf->altsetting[0].desc.bNumEndpoints == 2
&& data_intf->altsetting[1].desc.bNumEndpoints == 0)
data_desc = data_intf->altsetting;
else
return -EINVAL;
dev = alloc_netdev(sizeof(*pnd) + sizeof(pnd->urbs[0]) * rxq_size,
ifname, usbpn_setup);
if (!dev)
return -ENOMEM;
pnd = netdev_priv(dev);
SET_NETDEV_DEV(dev, &intf->dev);
netif_stop_queue(dev);
pnd->dev = dev;
pnd->usb = usb_get_dev(usbdev);
pnd->intf = intf;
pnd->data_intf = data_intf;
spin_lock_init(&pnd->tx_lock);
spin_lock_init(&pnd->rx_lock);
/* Endpoints */
if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
pnd->tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
} else {
pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
data_desc->endpoint[1].desc.bEndpointAddress);
pnd->tx_pipe = usb_sndbulkpipe(usbdev,
data_desc->endpoint[0].desc.bEndpointAddress);
}
pnd->active_setting = data_desc - data_intf->altsetting;
err = usb_driver_claim_interface(&usbpn_driver, data_intf, pnd);
if (err)
goto out;
/* Force inactive mode until the network device is brought UP */
usb_set_interface(usbdev, union_header->bSlaveInterface0,
!pnd->active_setting);
usb_set_intfdata(intf, pnd);
err = register_netdev(dev);
if (err) {
usb_driver_release_interface(&usbpn_driver, data_intf);
goto out;
}
dev_dbg(&dev->dev, "USB CDC Phonet device found\n");
return 0;
out:
usb_set_intfdata(intf, NULL);
free_netdev(dev);
return err;
}
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status = -1;
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
struct usb_cdc_union_desc *cdc_union;
struct usb_cdc_ether_desc *cdc_ether;
struct usb_driver *driver = driver_of(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
struct usb_cdc_parsed_header hdr;
BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
sizeof(struct qmi_wwan_state)));
/* set up initial state */
info->control = intf;
info->data = intf;
/* and a number of CDC descriptors */
cdc_parse_cdc_header(&hdr, intf, buf, len);
cdc_union = hdr.usb_cdc_union_desc;
cdc_ether = hdr.usb_cdc_ether_desc;
/* Use separate control and data interfaces if we found a CDC Union */
if (cdc_union) {
info->data = usb_ifnum_to_if(dev->udev,
cdc_union->bSlaveInterface0);
if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
!info->data) {
dev_err(&intf->dev,
"bogus CDC Union: master=%u, slave=%u\n",
cdc_union->bMasterInterface0,
cdc_union->bSlaveInterface0);
goto err;
}
}
/* errors aren't fatal - we can live with the dynamic address */
if (cdc_ether) {
dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
}
/* claim data interface and set it up */
if (info->control != info->data) {
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
goto err;
}
status = qmi_wwan_register_subdriver(dev);
if (status < 0 && info->control != info->data) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
}
/* Never use the same address on both ends of the link, even if the
* buggy firmware told us to. Or, if device is assigned the well-known
* buggy firmware MAC address, replace it with a random address,
*/
if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
eth_hw_addr_random(dev->net);
/* make MAC addr easily distinguishable from an IP header */
if (possibly_iphdr(dev->net->dev_addr)) {
dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
}
dev->net->netdev_ops = &qmi_wwan_netdev_ops;
err:
return status;
}
static int smdhsic_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int devid = -1;
int err;
const struct usb_cdc_union_desc *union_header = NULL;
const struct usb_host_interface *data_desc;
struct usb_interface *data_intf;
struct usb_device *usbdev;
struct str_intf_priv *intfpriv = NULL;
struct usb_driver *driver;
struct str_smdipc *smdipc;
struct str_hsic *hsic;
u8 *data;
int len;
pr_info("%s: Enter\n", __func__);
usbdev = interface_to_usbdev(intf);
g_usbdev.usbdev = usbdev;
driver = get_usb_driver(intf);
data = intf->altsetting->extra;
len = intf->altsetting->extralen;
if (!len) {
if (intf->cur_altsetting->endpoint->extralen &&
intf->cur_altsetting->endpoint->extra) {
pr_debug(
"%s: Seeking extra descriptors on endpoint\n",
__func__);
len = intf->cur_altsetting->endpoint->extralen;
data = intf->cur_altsetting->endpoint->extra;
} else {
pr_err(
"%s: Zero length descriptor reference\n",
__func__);
return -EINVAL;
}
}
if (!len) {
pr_err("%s: Zero length descriptor reference\n",
__func__);
return -EINVAL;
}
while (len > 0) {
if (data[1] == USB_DT_CS_INTERFACE) {
switch (data[2]) {
case USB_CDC_UNION_TYPE:
if (union_header)
break;
union_header =
(struct usb_cdc_union_desc *)data;
break;
default:
break;
}
}
data += data[0];
len -= data[0];
}
if (!union_header) {
pr_err("%s:USB CDC is not union type\n", __func__);
return -EINVAL;
}
data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
if (!data_intf) {
pr_err("%s:data_inferface is NULL\n", __func__);
return -ENODEV;
}
data_desc = data_intf->altsetting;
if (!data_desc) {
pr_err("%s:data_desc is NULL\n", __func__);
return -ENODEV;
}
switch (id->driver_info) {
case XMM6260_PSI_DOWN:
pr_warn("%s:XMM6260_PSI_DOWN\n", __func__);
intfpriv = smd_create_dev(data_intf, usbdev,
data_desc, DOWN_DEV_ID);
break;
case XMM6260_BIN_DOWN:
intfpriv = smd_create_dev(data_intf, usbdev,
data_desc, DOWN_DEV_ID);
break;
case XMM6260_CHANNEL:
devid = intf->altsetting->desc.bInterfaceNumber / 2;
intfpriv = smd_create_dev(data_intf, usbdev, data_desc, devid);
break;
default:
pr_err("%s: Undefined driver_info: %lu\n",
__func__, id->driver_info);
break;
}
if (!intfpriv) {
pr_err("%s:smd_create_dev() failed\n", __func__);
return -EINVAL;
}
err = usb_driver_claim_interface(driver, data_intf, intfpriv);
if (err < 0) {
pr_err("%s:usb_driver_claim() failed\n", __func__);
return err;
}
/* to start runtime pm with AP initiated L2 */
if (usb_runtime_pm_ap_initiated_L2) {
usbdev->autosuspend_delay = msecs_to_jiffies(200);
if (devid == FMT_DEV_ID) {
smdipc = (struct str_smdipc *)intfpriv->data;
hsic = &smdipc->hsic;
g_usbdev.hsic = hsic;
g_usbdev.hsic->dpm_suspending = false;
g_usbdev.suspended = 0;
INIT_DELAYED_WORK(&hsic->pm_runtime_work,
smdhsic_pm_runtime_start);
schedule_delayed_work(&hsic->pm_runtime_work,
msecs_to_jiffies(10000));
}
} else
usbdev->autosuspend_delay = 0;
intfpriv->devid |= ID_BIND;
usb_set_intfdata(intf, intfpriv);
pm_suspend_ignore_children(&usbdev->dev, true);
return 0;
}
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status = -1;
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
struct usb_cdc_union_desc *cdc_union = NULL;
struct usb_cdc_ether_desc *cdc_ether = NULL;
u32 found = 0;
struct usb_driver *driver = driver_of(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
sizeof(struct qmi_wwan_state)));
/* set up initial state */
info->control = intf;
info->data = intf;
/* and a number of CDC descriptors */
while (len > 3) {
struct usb_descriptor_header *h = (void *)buf;
/* ignore any misplaced descriptors */
if (h->bDescriptorType != USB_DT_CS_INTERFACE)
goto next_desc;
/* buf[2] is CDC descriptor subtype */
switch (buf[2]) {
case USB_CDC_HEADER_TYPE:
if (found & 1 << USB_CDC_HEADER_TYPE) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
dev_dbg(&intf->dev, "CDC header len %u\n",
h->bLength);
goto err;
}
break;
case USB_CDC_UNION_TYPE:
if (found & 1 << USB_CDC_UNION_TYPE) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
dev_dbg(&intf->dev, "CDC union len %u\n",
h->bLength);
goto err;
}
cdc_union = (struct usb_cdc_union_desc *)buf;
break;
case USB_CDC_ETHERNET_TYPE:
if (found & 1 << USB_CDC_ETHERNET_TYPE) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
dev_dbg(&intf->dev, "CDC ether len %u\n",
h->bLength);
goto err;
}
cdc_ether = (struct usb_cdc_ether_desc *)buf;
break;
}
/* Remember which CDC functional descriptors we've seen. Works
* for all types we care about, of which USB_CDC_ETHERNET_TYPE
* (0x0f) is the highest numbered
*/
if (buf[2] < 32)
found |= 1 << buf[2];
next_desc:
len -= h->bLength;
buf += h->bLength;
}
/* Use separate control and data interfaces if we found a CDC Union */
if (cdc_union) {
info->data = usb_ifnum_to_if(dev->udev,
cdc_union->bSlaveInterface0);
if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
!info->data) {
dev_err(&intf->dev,
"bogus CDC Union: master=%u, slave=%u\n",
cdc_union->bMasterInterface0,
cdc_union->bSlaveInterface0);
goto err;
}
}
/* errors aren't fatal - we can live with the dynamic address */
if (cdc_ether) {
dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
}
/* claim data interface and set it up */
if (info->control != info->data) {
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
goto err;
}
status = qmi_wwan_register_subdriver(dev);
if (status < 0 && info->control != info->data) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
}
/* Never use the same address on both ends of the link, even if the
* buggy firmware told us to. Or, if device is assigned the well-known
* buggy firmware MAC address, replace it with a random address,
*/
if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
eth_hw_addr_random(dev->net);
/* make MAC addr easily distinguishable from an IP header */
if (possibly_iphdr(dev->net->dev_addr)) {
dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
}
dev->net->netdev_ops = &qmi_wwan_netdev_ops;
err:
return status;
}
/*
* probes control interface, claims data interface, collects the bulk
* endpoints, activates data interface (if needed), maybe sets MTU.
* all pure cdc, except for certain firmware workarounds, and knowing
* that rndis uses one different rule.
*/
int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
{
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *d;
struct cdc_state *info = (void *) &dev->data;
int status;
int rndis;
struct usb_driver *driver = driver_of(intf);
if (sizeof dev->data < sizeof *info)
return -EDOM;
/* expect strict spec conformance for the descriptors, but
* cope with firmware which stores them in the wrong place
*/
if (len == 0 && dev->udev->actconfig->extralen) {
/* Motorola SB4100 (and others: Brad Hards says it's
* from a Broadcom design) put CDC descriptors here
*/
buf = dev->udev->actconfig->extra;
len = dev->udev->actconfig->extralen;
if (len)
dev_dbg(&intf->dev,
"CDC descriptors on config\n");
}
/* this assumes that if there's a non-RNDIS vendor variant
* of cdc-acm, it'll fail RNDIS requests cleanly.
*/
rndis = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff);
memset(info, 0, sizeof *info);
info->control = intf;
while (len > 3) {
if (buf [1] != USB_DT_CS_INTERFACE)
goto next_desc;
/* use bDescriptorSubType to identify the CDC descriptors.
* We expect devices with CDC header and union descriptors.
* For CDC Ethernet we need the ethernet descriptor.
* For RNDIS, ignore two (pointless) CDC modem descriptors
* in favor of a complicated OID-based RPC scheme doing what
* CDC Ethernet achieves with a simple descriptor.
*/
switch (buf [2]) {
case USB_CDC_HEADER_TYPE:
if (info->header) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto bad_desc;
}
info->header = (void *) buf;
if (info->header->bLength != sizeof *info->header) {
dev_dbg(&intf->dev, "CDC header len %u\n",
info->header->bLength);
goto bad_desc;
}
break;
case USB_CDC_UNION_TYPE:
if (info->u) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto bad_desc;
}
info->u = (void *) buf;
if (info->u->bLength != sizeof *info->u) {
dev_dbg(&intf->dev, "CDC union len %u\n",
info->u->bLength);
goto bad_desc;
}
/* we need a master/control interface (what we're
* probed with) and a slave/data interface; union
* descriptors sort this all out.
*/
info->control = usb_ifnum_to_if(dev->udev,
info->u->bMasterInterface0);
info->data = usb_ifnum_to_if(dev->udev,
info->u->bSlaveInterface0);
if (!info->control || !info->data) {
dev_dbg(&intf->dev,
"master #%u/%p slave #%u/%p\n",
info->u->bMasterInterface0,
info->control,
info->u->bSlaveInterface0,
info->data);
goto bad_desc;
}
if (info->control != intf) {
dev_dbg(&intf->dev, "bogus CDC Union\n");
/* Ambit USB Cable Modem (and maybe others)
* interchanges master and slave interface.
*/
if (info->data == intf) {
info->data = info->control;
info->control = intf;
} else
goto bad_desc;
}
/* a data interface altsetting does the real i/o */
d = &info->data->cur_altsetting->desc;
if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
dev_dbg(&intf->dev, "slave class %u\n",
d->bInterfaceClass);
goto bad_desc;
}
break;
case USB_CDC_ETHERNET_TYPE:
if (info->ether) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto bad_desc;
}
info->ether = (void *) buf;
if (info->ether->bLength != sizeof *info->ether) {
dev_dbg(&intf->dev, "CDC ether len %u\n",
info->ether->bLength);
goto bad_desc;
}
dev->hard_mtu = le16_to_cpu(
info->ether->wMaxSegmentSize);
/* because of Zaurus, we may be ignoring the host
* side link address we were given.
*/
break;
}
next_desc:
len -= buf [0]; /* bLength */
buf += buf [0];
}
if (!info->header || !info->u || (!rndis && !info->ether)) {
dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
info->header ? "" : "header ",
info->u ? "" : "union ",
info->ether ? "" : "ether ");
goto bad_desc;
}
/* claim data interface and set it up ... with side effects.
* network traffic can't flow until an altsetting is enabled.
*/
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
return status;
status = usbnet_get_endpoints(dev, info->data);
if (status < 0) {
/* ensure immediate exit from usbnet_disconnect */
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return status;
}
/* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
dev->status = NULL;
if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
struct usb_endpoint_descriptor *desc;
dev->status = &info->control->cur_altsetting->endpoint [0];
desc = &dev->status->desc;
if (desc->bmAttributes != USB_ENDPOINT_XFER_INT
|| !(desc->bEndpointAddress & USB_DIR_IN)
|| (le16_to_cpu(desc->wMaxPacketSize)
< sizeof(struct usb_cdc_notification))
|| !desc->bInterval) {
dev_dbg(&intf->dev, "bad notification endpoint\n");
dev->status = NULL;
}
}
if (rndis && !dev->status) {
dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
return -ENODEV;
}
return 0;
bad_desc:
dev_info(&dev->udev->dev, "bad CDC descriptors\n");
return -ENODEV;
}
