Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 806 insertions, 0 deletions

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
new file mode 100644
index 000000000000..c42d7e6ac1c5
--- /dev/null
+++ b/drivers/bluetooth/bfusb.c
@@ -0,0 +1,806 @@
+/*
+ *
+ *  AVM BlueFRITZ! USB driver
+ *
+ *  Copyright (C) 2003  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/skbuff.h>
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#ifndef CONFIG_BT_HCIBFUSB_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+#define VERSION "1.1"
+
+static int ignore = 0;
+
+static struct usb_driver bfusb_driver;
+
+static struct usb_device_id bfusb_table[] = {
+        /* AVM BlueFRITZ! USB */
+        { USB_DEVICE(0x057c, 0x2200) },
+
+        { }     /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bfusb_table);
+
+
+#define BFUSB_MAX_BLOCK_SIZE    256
+
+#define BFUSB_BLOCK_TIMEOUT     3000
+
+#define BFUSB_TX_PROCESS        1
+#define BFUSB_TX_WAKEUP         2
+
+#define BFUSB_MAX_BULK_TX       2
+#define BFUSB_MAX_BULK_RX       2
+
+struct bfusb {
+        struct hci_dev          *hdev;
+
+        unsigned long           state;
+
+        struct usb_device       *udev;
+
+        unsigned int            bulk_in_ep;
+        unsigned int            bulk_out_ep;
+        unsigned int            bulk_pkt_size;
+
+        rwlock_t                lock;
+
+        struct sk_buff_head     transmit_q;
+
+        struct sk_buff          *reassembly;
+
+        atomic_t                pending_tx;
+        struct sk_buff_head     pending_q;
+        struct sk_buff_head     completed_q;
+};
+
+struct bfusb_scb {
+        struct urb *urb;
+};
+
+static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs);
+static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs);
+
+static struct urb *bfusb_get_completed(struct bfusb *bfusb)
+{
+        struct sk_buff *skb;
+        struct urb *urb = NULL;
+
+        BT_DBG("bfusb %p", bfusb);
+
+        skb = skb_dequeue(&bfusb->completed_q);
+        if (skb) {
+                urb = ((struct bfusb_scb *) skb->cb)->urb;
+                kfree_skb(skb);
+        }
+
+        return urb;
+}
+
+static void bfusb_unlink_urbs(struct bfusb *bfusb)
+{
+        struct sk_buff *skb;
+        struct urb *urb;
+
+        BT_DBG("bfusb %p", bfusb);
+
+        while ((skb = skb_dequeue(&bfusb->pending_q))) {
+                urb = ((struct bfusb_scb *) skb->cb)->urb;
+                usb_kill_urb(urb);
+                skb_queue_tail(&bfusb->completed_q, skb);
+        }
+
+        while ((urb = bfusb_get_completed(bfusb)))
+                usb_free_urb(urb);
+}
+
+
+static int bfusb_send_bulk(struct bfusb *bfusb, struct sk_buff *skb)
+{
+        struct bfusb_scb *scb = (void *) skb->cb;
+        struct urb *urb = bfusb_get_completed(bfusb);
+        int err, pipe;
+
+        BT_DBG("bfusb %p skb %p len %d", bfusb, skb, skb->len);
+
+        if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+                return -ENOMEM;
+
+        pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+
+        usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, skb->len,
+                        bfusb_tx_complete, skb);
+
+        scb->urb = urb;
+
+        skb_queue_tail(&bfusb->pending_q, skb);
+
+        err = usb_submit_urb(urb, GFP_ATOMIC);
+        if (err) {
+                BT_ERR("%s bulk tx submit failed urb %p err %d", 
+                                        bfusb->hdev->name, urb, err);
+                skb_unlink(skb);
+                usb_free_urb(urb);
+        } else
+                atomic_inc(&bfusb->pending_tx);
+
+        return err;
+}
+
+static void bfusb_tx_wakeup(struct bfusb *bfusb)
+{
+        struct sk_buff *skb;
+
+        BT_DBG("bfusb %p", bfusb);
+
+        if (test_and_set_bit(BFUSB_TX_PROCESS, &bfusb->state)) {
+                set_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+                return;
+        }
+
+        do {
+                clear_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+
+                while ((atomic_read(&bfusb->pending_tx) < BFUSB_MAX_BULK_TX) &&
+                                (skb = skb_dequeue(&bfusb->transmit_q))) {
+                        if (bfusb_send_bulk(bfusb, skb) < 0) {
+                                skb_queue_head(&bfusb->transmit_q, skb);
+                                break;
+                        }
+                }
+
+        } while (test_bit(BFUSB_TX_WAKEUP, &bfusb->state));
+
+        clear_bit(BFUSB_TX_PROCESS, &bfusb->state);
+}
+
+static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs)
+{
+        struct sk_buff *skb = (struct sk_buff *) urb->context;
+        struct bfusb *bfusb = (struct bfusb *) skb->dev;
+
+        BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
+
+        atomic_dec(&bfusb->pending_tx);
+
+        if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+                return;
+
+        if (!urb->status)
+                bfusb->hdev->stat.byte_tx += skb->len;
+        else
+                bfusb->hdev->stat.err_tx++;
+
+        read_lock(&bfusb->lock);
+
+        skb_unlink(skb);
+        skb_queue_tail(&bfusb->completed_q, skb);
+
+        bfusb_tx_wakeup(bfusb);
+
+        read_unlock(&bfusb->lock);
+}
+
+
+static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
+{
+        struct bfusb_scb *scb;
+        struct sk_buff *skb;
+        int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
+
+        BT_DBG("bfusb %p urb %p", bfusb, urb);
+
+        if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+                return -ENOMEM;
+
+        if (!(skb = bt_skb_alloc(size, GFP_ATOMIC))) {
+                usb_free_urb(urb);
+                return -ENOMEM;
+        }
+
+        skb->dev = (void *) bfusb;
+
+        scb = (struct bfusb_scb *) skb->cb;
+        scb->urb = urb;
+
+        pipe = usb_rcvbulkpipe(bfusb->udev, bfusb->bulk_in_ep);
+
+        usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, size,
+                        bfusb_rx_complete, skb);
+
+        skb_queue_tail(&bfusb->pending_q, skb);
+
+        err = usb_submit_urb(urb, GFP_ATOMIC);
+        if (err) {
+                BT_ERR("%s bulk rx submit failed urb %p err %d",
+                                        bfusb->hdev->name, urb, err);
+                skb_unlink(skb);
+                kfree_skb(skb);
+                usb_free_urb(urb);
+        }
+
+        return err;
+}
+
+static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *data, int len)
+{
+        BT_DBG("bfusb %p hdr 0x%02x data %p len %d", bfusb, hdr, data, len);
+
+        if (hdr & 0x10) {
+                BT_ERR("%s error in block", bfusb->hdev->name);
+                if (bfusb->reassembly)
+                        kfree_skb(bfusb->reassembly);
+                bfusb->reassembly = NULL;
+                return -EIO;
+        }
+
+        if (hdr & 0x04) {
+                struct sk_buff *skb;
+                unsigned char pkt_type;
+                int pkt_len = 0;
+
+                if (bfusb->reassembly) {
+                        BT_ERR("%s unexpected start block", bfusb->hdev->name);
+                        kfree_skb(bfusb->reassembly);
+                        bfusb->reassembly = NULL;
+                }
+
+                if (len < 1) {
+                        BT_ERR("%s no packet type found", bfusb->hdev->name);
+                        return -EPROTO;
+                }
+
+                pkt_type = *data++; len--;
+
+                switch (pkt_type) {
+                case HCI_EVENT_PKT:
+                        if (len >= HCI_EVENT_HDR_SIZE) {
+                                struct hci_event_hdr *hdr = (struct hci_event_hdr *) data;
+                                pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
+                        } else {
+                                BT_ERR("%s event block is too short", bfusb->hdev->name);
+                                return -EILSEQ;
+                        }
+                        break;
+
+                case HCI_ACLDATA_PKT:
+                        if (len >= HCI_ACL_HDR_SIZE) {
+                                struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) data;
+                                pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
+                        } else {
+                                BT_ERR("%s data block is too short", bfusb->hdev->name);
+                                return -EILSEQ;
+                        }
+                        break;
+
+                case HCI_SCODATA_PKT:
+                        if (len >= HCI_SCO_HDR_SIZE) {
+                                struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) data;
+                                pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
+                        } else {
+                                BT_ERR("%s audio block is too short", bfusb->hdev->name);
+                                return -EILSEQ;
+                        }
+                        break;
+                }
+
+                skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
+                if (!skb) {
+                        BT_ERR("%s no memory for the packet", bfusb->hdev->name);
+                        return -ENOMEM;
+                }
+
+                skb->dev = (void *) bfusb->hdev;
+                skb->pkt_type = pkt_type;
+
+                bfusb->reassembly = skb;
+        } else {
+                if (!bfusb->reassembly) {
+                        BT_ERR("%s unexpected continuation block", bfusb->hdev->name);
+                        return -EIO;
+                }
+        }
+
+        if (len > 0)
+                memcpy(skb_put(bfusb->reassembly, len), data, len);
+
+        if (hdr & 0x08) {
+                hci_recv_frame(bfusb->reassembly);
+                bfusb->reassembly = NULL;
+        }
+
+        return 0;
+}
+
+static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs)
+{
+        struct sk_buff *skb = (struct sk_buff *) urb->context;
+        struct bfusb *bfusb = (struct bfusb *) skb->dev;
+        unsigned char *buf = urb->transfer_buffer;
+        int count = urb->actual_length;
+        int err, hdr, len;
+
+        BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
+
+        read_lock(&bfusb->lock);
+
+        if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+                goto unlock;
+
+        if (urb->status || !count)
+                goto resubmit;
+
+        bfusb->hdev->stat.byte_rx += count;
+
+        skb_put(skb, count);
+
+        while (count) {
+                hdr = buf[0] | (buf[1] << 8);
+
+                if (hdr & 0x4000) {
+                        len = 0;
+                        count -= 2;
+                        buf   += 2;
+                } else {
+                        len = (buf[2] == 0) ? 256 : buf[2];
+                        count -= 3;
+                        buf   += 3;
+                }
+
+                if (count < len) {
+                        BT_ERR("%s block extends over URB buffer ranges",
+                                        bfusb->hdev->name);
+                }
+
+                if ((hdr & 0xe1) == 0xc1)
+                        bfusb_recv_block(bfusb, hdr, buf, len);
+
+                count -= len;
+                buf   += len;
+        }
+
+        skb_unlink(skb);
+        kfree_skb(skb);
+
+        bfusb_rx_submit(bfusb, urb);
+
+        read_unlock(&bfusb->lock);
+
+        return;
+
+resubmit:
+        urb->dev = bfusb->udev;
+
+        err = usb_submit_urb(urb, GFP_ATOMIC);
+        if (err) {
+                BT_ERR("%s bulk resubmit failed urb %p err %d",
+                                        bfusb->hdev->name, urb, err);
+        }
+
+unlock:
+        read_unlock(&bfusb->lock);
+}
+
+
+static int bfusb_open(struct hci_dev *hdev)
+{
+        struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+        unsigned long flags;
+        int i, err;
+
+        BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+        if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+                return 0;
+
+        write_lock_irqsave(&bfusb->lock, flags);
+
+        err = bfusb_rx_submit(bfusb, NULL);
+        if (!err) {
+                for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
+                        bfusb_rx_submit(bfusb, NULL);
+        } else {
+                clear_bit(HCI_RUNNING, &hdev->flags);
+        }
+
+        write_unlock_irqrestore(&bfusb->lock, flags);
+
+        return err;
+}
+
+static int bfusb_flush(struct hci_dev *hdev)
+{
+        struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+
+        BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+        skb_queue_purge(&bfusb->transmit_q);
+
+        return 0;
+}
+
+static int bfusb_close(struct hci_dev *hdev)
+{
+        struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+        unsigned long flags;
+
+        BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+        if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+                return 0;
+
+        write_lock_irqsave(&bfusb->lock, flags);
+        write_unlock_irqrestore(&bfusb->lock, flags);
+
+        bfusb_unlink_urbs(bfusb);
+        bfusb_flush(hdev);
+
+        return 0;
+}
+
+static int bfusb_send_frame(struct sk_buff *skb)
+{
+        struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+        struct bfusb *bfusb;
+        struct sk_buff *nskb;
+        unsigned char buf[3];
+        int sent = 0, size, count;
+
+        BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, skb->pkt_type, skb->len);
+
+        if (!hdev) {
+                BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+                return -ENODEV;
+        }
+
+        if (!test_bit(HCI_RUNNING, &hdev->flags))
+                return -EBUSY;
+
+        bfusb = (struct bfusb *) hdev->driver_data;
+
+        switch (skb->pkt_type) {
+        case HCI_COMMAND_PKT:
+                hdev->stat.cmd_tx++;
+                break;
+        case HCI_ACLDATA_PKT:
+                hdev->stat.acl_tx++;
+                break;
+        case HCI_SCODATA_PKT:
+                hdev->stat.sco_tx++;
+                break;
+        };
+
+        /* Prepend skb with frame type */
+        memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
+
+        count = skb->len;
+
+        /* Max HCI frame size seems to be 1511 + 1 */
+        if (!(nskb = bt_skb_alloc(count + 32, GFP_ATOMIC))) {
+                BT_ERR("Can't allocate memory for new packet");
+                return -ENOMEM;
+        }
+
+        nskb->dev = (void *) bfusb;
+
+        while (count) {
+                size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
+
+                buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
+                buf[1] = 0x00;
+                buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
+
+                memcpy(skb_put(nskb, 3), buf, 3);
+                memcpy(skb_put(nskb, size), skb->data + sent, size);
+
+                sent  += size;
+                count -= size;
+        }
+
+        /* Don't send frame with multiple size of bulk max packet */
+        if ((nskb->len % bfusb->bulk_pkt_size) == 0) {
+                buf[0] = 0xdd;
+                buf[1] = 0x00;
+                memcpy(skb_put(nskb, 2), buf, 2);
+        }
+
+        read_lock(&bfusb->lock);
+
+        skb_queue_tail(&bfusb->transmit_q, nskb);
+        bfusb_tx_wakeup(bfusb);
+
+        read_unlock(&bfusb->lock);
+
+        kfree_skb(skb);
+
+        return 0;
+}
+
+static void bfusb_destruct(struct hci_dev *hdev)
+{
+        struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+
+        BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+        kfree(bfusb);
+}
+
+static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+        return -ENOIOCTLCMD;
+}
+
+
+static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int count)
+{
+        unsigned char *buf;
+        int err, pipe, len, size, sent = 0;
+
+        BT_DBG("bfusb %p udev %p", bfusb, bfusb->udev);
+
+        BT_INFO("BlueFRITZ! USB loading firmware");
+
+        pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+        if (usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+                                0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
+                BT_ERR("Can't change to loading configuration");
+                return -EBUSY;
+        }
+
+        bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+
+        buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
+        if (!buf) {
+                BT_ERR("Can't allocate memory chunk for firmware");
+                return -ENOMEM;
+        }
+
+        pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+
+        while (count) {
+                size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
+
+                memcpy(buf, firmware + sent, size);
+
+                err = usb_bulk_msg(bfusb->udev, pipe, buf, size,
+                                        &len, BFUSB_BLOCK_TIMEOUT);
+
+                if (err || (len != size)) {
+                        BT_ERR("Error in firmware loading");
+                        goto error;
+                }
+
+                sent  += size;
+                count -= size;
+        }
+
+        if ((err = usb_bulk_msg(bfusb->udev, pipe, NULL, 0,
+                                &len, BFUSB_BLOCK_TIMEOUT)) < 0) {
+                BT_ERR("Error in null packet request");
+                goto error;
+        }
+
+        pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+        if ((err = usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+                                0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT)) < 0) {
+                BT_ERR("Can't change to running configuration");
+                goto error;
+        }
+
+        bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+
+        BT_INFO("BlueFRITZ! USB device ready");
+
+        kfree(buf);
+        return 0;
+
+error:
+        kfree(buf);
+
+        pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+        usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+                                0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+        return err;
+}
+
+static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        const struct firmware *firmware;
+        struct usb_device *udev = interface_to_usbdev(intf);
+        struct usb_host_endpoint *bulk_out_ep;
+        struct usb_host_endpoint *bulk_in_ep;
+        struct hci_dev *hdev;
+        struct bfusb *bfusb;
+
+        BT_DBG("intf %p id %p", intf, id);
+
+        if (ignore)
+                return -ENODEV;
+
+        /* Check number of endpoints */
+        if (intf->cur_altsetting->desc.bNumEndpoints < 2)
+                return -EIO;
+
+        bulk_out_ep = &intf->cur_altsetting->endpoint[0];
+        bulk_in_ep  = &intf->cur_altsetting->endpoint[1];
+
+        if (!bulk_out_ep || !bulk_in_ep) {
+                BT_ERR("Bulk endpoints not found");
+                goto done;
+        }
+
+        /* Initialize control structure and load firmware */
+        if (!(bfusb = kmalloc(sizeof(struct bfusb), GFP_KERNEL))) {
+                BT_ERR("Can't allocate memory for control structure");
+                goto done;
+        }
+
+        memset(bfusb, 0, sizeof(struct bfusb));
+
+        bfusb->udev = udev;
+        bfusb->bulk_in_ep    = bulk_in_ep->desc.bEndpointAddress;
+        bfusb->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
+        bfusb->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
+
+        rwlock_init(&bfusb->lock);
+
+        bfusb->reassembly = NULL;
+
+        skb_queue_head_init(&bfusb->transmit_q);
+        skb_queue_head_init(&bfusb->pending_q);
+        skb_queue_head_init(&bfusb->completed_q);
+
+        if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
+                BT_ERR("Firmware request failed");
+                goto error;
+        }
+
+        BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
+
+        if (bfusb_load_firmware(bfusb, firmware->data, firmware->size) < 0) {
+                BT_ERR("Firmware loading failed");
+                goto release;
+        }
+
+        release_firmware(firmware);
+
+        /* Initialize and register HCI device */
+        hdev = hci_alloc_dev();
+        if (!hdev) {
+                BT_ERR("Can't allocate HCI device");
+                goto error;
+        }
+
+        bfusb->hdev = hdev;
+
+        hdev->type = HCI_USB;
+        hdev->driver_data = bfusb;
+        SET_HCIDEV_DEV(hdev, &intf->dev);
+
+        hdev->open     = bfusb_open;
+        hdev->close    = bfusb_close;
+        hdev->flush    = bfusb_flush;
+        hdev->send     = bfusb_send_frame;
+        hdev->destruct = bfusb_destruct;
+        hdev->ioctl    = bfusb_ioctl;
+
+        hdev->owner = THIS_MODULE;
+
+        if (hci_register_dev(hdev) < 0) {
+                BT_ERR("Can't register HCI device");
+                hci_free_dev(hdev);
+                goto error;
+        }
+
+        usb_set_intfdata(intf, bfusb);
+
+        return 0;
+
+release:
+        release_firmware(firmware);
+
+error:
+        kfree(bfusb);
+
+done:
+        return -EIO;
+}
+
+static void bfusb_disconnect(struct usb_interface *intf)
+{
+        struct bfusb *bfusb = usb_get_intfdata(intf);
+        struct hci_dev *hdev = bfusb->hdev;
+
+        BT_DBG("intf %p", intf);
+
+        if (!hdev)
+                return;
+
+        usb_set_intfdata(intf, NULL);
+
+        bfusb_close(hdev);
+
+        if (hci_unregister_dev(hdev) < 0)
+                BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+        hci_free_dev(hdev);
+}
+
+static struct usb_driver bfusb_driver = {
+        .owner          = THIS_MODULE,
+        .name           = "bfusb",
+        .probe          = bfusb_probe,
+        .disconnect     = bfusb_disconnect,
+        .id_table       = bfusb_table,
+};
+
+static int __init bfusb_init(void)
+{
+        int err;
+
+        BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
+
+        if ((err = usb_register(&bfusb_driver)) < 0)
+                BT_ERR("Failed to register BlueFRITZ! USB driver");
+
+        return err;
+}
+
+static void __exit bfusb_exit(void)
+{
+        usb_deregister(&bfusb_driver);
+}
+
+module_init(bfusb_init);
+module_exit(bfusb_exit);
+
+module_param(ignore, bool, 0644);
+MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");