Merge branch 'cleanups'
[cascardo/linux.git] / drivers / bluetooth / btusb.c
index ea3d337..b876888 100644 (file)
@@ -28,7 +28,7 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
-#define VERSION "0.6"
+#define VERSION "0.7"
 
 static bool disable_scofix;
 static bool force_scofix;
@@ -50,11 +50,16 @@ static struct usb_driver btusb_driver;
 #define BTUSB_BCM_PATCHRAM     0x400
 #define BTUSB_MARVELL          0x800
 #define BTUSB_SWAVE            0x1000
+#define BTUSB_INTEL_NEW                0x2000
+#define BTUSB_AMP              0x4000
 
 static const struct usb_device_id btusb_table[] = {
        /* Generic Bluetooth USB device */
        { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
 
+       /* Generic Bluetooth AMP device */
+       { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
+
        /* Apple-specific (Broadcom) devices */
        { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
 
@@ -110,10 +115,17 @@ static const struct usb_device_id btusb_table[] = {
        { USB_DEVICE(0x13d3, 0x3404),
          .driver_info = BTUSB_BCM_PATCHRAM },
 
+       /* Broadcom BCM20702B0 (Dynex/Insignia) */
+       { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
+
        /* Foxconn - Hon Hai */
        { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
          .driver_info = BTUSB_BCM_PATCHRAM },
 
+       /* Lite-On Technology - Broadcom based */
+       { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
+         .driver_info = BTUSB_BCM_PATCHRAM },
+
        /* Broadcom devices with vendor specific id */
        { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
          .driver_info = BTUSB_BCM_PATCHRAM },
@@ -255,13 +267,18 @@ static const struct usb_device_id blacklist_table[] = {
        { USB_DEVICE(0x16d3, 0x0002),
          .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 
-       /* Intel Bluetooth device */
+       /* Marvell Bluetooth devices */
+       { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
+       { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
+
+       /* Intel Bluetooth devices */
        { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
        { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
+       { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
 
-       /* Marvell device */
-       { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
-       { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
+       /* Other Intel Bluetooth devices */
+       { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
+         .driver_info = BTUSB_IGNORE },
 
        { }     /* Terminating entry */
 };
@@ -273,6 +290,11 @@ static const struct usb_device_id blacklist_table[] = {
 #define BTUSB_ISOC_RUNNING     2
 #define BTUSB_SUSPENDING       3
 #define BTUSB_DID_ISO_RESUME   4
+#define BTUSB_BOOTLOADER       5
+#define BTUSB_DOWNLOADING      6
+#define BTUSB_FIRMWARE_LOADED  7
+#define BTUSB_FIRMWARE_FAILED  8
+#define BTUSB_BOOTING          9
 
 struct btusb_data {
        struct hci_dev       *hdev;
@@ -306,6 +328,7 @@ struct btusb_data {
        struct usb_endpoint_descriptor *isoc_rx_ep;
 
        __u8 cmdreq_type;
+       __u8 cmdreq;
 
        unsigned int sco_num;
        int isoc_altsetting;
@@ -315,6 +338,16 @@ struct btusb_data {
        int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 };
 
+static int btusb_wait_on_bit_timeout(void *word, int bit, unsigned long timeout,
+                                    unsigned mode)
+{
+       might_sleep();
+       if (!test_bit(bit, word))
+               return 0;
+       return out_of_line_wait_on_bit_timeout(word, bit, bit_wait_timeout,
+                                              mode, timeout);
+}
+
 static inline void btusb_free_frags(struct btusb_data *data)
 {
        unsigned long flags;
@@ -959,7 +992,7 @@ static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
        }
 
        dr->bRequestType = data->cmdreq_type;
-       dr->bRequest     = 0;
+       dr->bRequest     = data->cmdreq;
        dr->wIndex       = 0;
        dr->wValue       = 0;
        dr->wLength      = __cpu_to_le16(skb->len);
@@ -1297,6 +1330,26 @@ struct intel_version {
        u8 fw_patch_num;
 } __packed;
 
+struct intel_boot_params {
+       __u8     status;
+       __u8     otp_format;
+       __u8     otp_content;
+       __u8     otp_patch;
+       __le16   dev_revid;
+       __u8     secure_boot;
+       __u8     key_from_hdr;
+       __u8     key_type;
+       __u8     otp_lock;
+       __u8     api_lock;
+       __u8     debug_lock;
+       bdaddr_t otp_bdaddr;
+       __u8     min_fw_build_nn;
+       __u8     min_fw_build_cw;
+       __u8     min_fw_build_yy;
+       __u8     limited_cce;
+       __u8     unlocked_state;
+} __packed;
+
 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
                                                       struct intel_version *ver)
 {
@@ -1705,6 +1758,562 @@ exit_mfg_deactivate:
        return 0;
 }
 
+static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
+{
+       struct sk_buff *skb;
+       struct hci_event_hdr *hdr;
+       struct hci_ev_cmd_complete *evt;
+
+       skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
+       if (!skb)
+               return -ENOMEM;
+
+       hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
+       hdr->evt = HCI_EV_CMD_COMPLETE;
+       hdr->plen = sizeof(*evt) + 1;
+
+       evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
+       evt->ncmd = 0x01;
+       evt->opcode = cpu_to_le16(opcode);
+
+       *skb_put(skb, 1) = 0x00;
+
+       bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
+
+       return hci_recv_frame(hdev, skb);
+}
+
+static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
+                                int count)
+{
+       /* When the device is in bootloader mode, then it can send
+        * events via the bulk endpoint. These events are treated the
+        * same way as the ones received from the interrupt endpoint.
+        */
+       if (test_bit(BTUSB_BOOTLOADER, &data->flags))
+               return btusb_recv_intr(data, buffer, count);
+
+       return btusb_recv_bulk(data, buffer, count);
+}
+
+static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+       struct btusb_data *data = hci_get_drvdata(hdev);
+
+       if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
+               struct hci_event_hdr *hdr = (void *)skb->data;
+
+               /* When the firmware loading completes the device sends
+                * out a vendor specific event indicating the result of
+                * the firmware loading.
+                */
+               if (skb->len == 7 && hdr->evt == 0xff && hdr->plen == 0x05 &&
+                   skb->data[2] == 0x06) {
+                       if (skb->data[3] != 0x00)
+                               test_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
+
+                       if (test_and_clear_bit(BTUSB_DOWNLOADING,
+                                              &data->flags) &&
+                           test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
+                               smp_mb__after_atomic();
+                               wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
+                       }
+               }
+
+               /* When switching to the operational firmware the device
+                * sends a vendor specific event indicating that the bootup
+                * completed.
+                */
+               if (skb->len == 9 && hdr->evt == 0xff && hdr->plen == 0x07 &&
+                   skb->data[2] == 0x02) {
+                       if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
+                               smp_mb__after_atomic();
+                               wake_up_bit(&data->flags, BTUSB_BOOTING);
+                       }
+               }
+       }
+
+       return hci_recv_frame(hdev, skb);
+}
+
+static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+       struct btusb_data *data = hci_get_drvdata(hdev);
+       struct urb *urb;
+
+       BT_DBG("%s", hdev->name);
+
+       if (!test_bit(HCI_RUNNING, &hdev->flags))
+               return -EBUSY;
+
+       switch (bt_cb(skb)->pkt_type) {
+       case HCI_COMMAND_PKT:
+               if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
+                       struct hci_command_hdr *cmd = (void *)skb->data;
+                       __u16 opcode = le16_to_cpu(cmd->opcode);
+
+                       /* When in bootloader mode and the command 0xfc09
+                        * is received, it needs to be send down the
+                        * bulk endpoint. So allocate a bulk URB instead.
+                        */
+                       if (opcode == 0xfc09)
+                               urb = alloc_bulk_urb(hdev, skb);
+                       else
+                               urb = alloc_ctrl_urb(hdev, skb);
+
+                       /* When the 0xfc01 command is issued to boot into
+                        * the operational firmware, it will actually not
+                        * send a command complete event. To keep the flow
+                        * control working inject that event here.
+                        */
+                       if (opcode == 0xfc01)
+                               inject_cmd_complete(hdev, opcode);
+               } else {
+                       urb = alloc_ctrl_urb(hdev, skb);
+               }
+               if (IS_ERR(urb))
+                       return PTR_ERR(urb);
+
+               hdev->stat.cmd_tx++;
+               return submit_or_queue_tx_urb(hdev, urb);
+
+       case HCI_ACLDATA_PKT:
+               urb = alloc_bulk_urb(hdev, skb);
+               if (IS_ERR(urb))
+                       return PTR_ERR(urb);
+
+               hdev->stat.acl_tx++;
+               return submit_or_queue_tx_urb(hdev, urb);
+
+       case HCI_SCODATA_PKT:
+               if (hci_conn_num(hdev, SCO_LINK) < 1)
+                       return -ENODEV;
+
+               urb = alloc_isoc_urb(hdev, skb);
+               if (IS_ERR(urb))
+                       return PTR_ERR(urb);
+
+               hdev->stat.sco_tx++;
+               return submit_tx_urb(hdev, urb);
+       }
+
+       return -EILSEQ;
+}
+
+static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
+                                  u32 plen, const void *param)
+{
+       while (plen > 0) {
+               struct sk_buff *skb;
+               u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
+
+               cmd_param[0] = fragment_type;
+               memcpy(cmd_param + 1, param, fragment_len);
+
+               skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
+                                    cmd_param, HCI_INIT_TIMEOUT);
+               if (IS_ERR(skb))
+                       return PTR_ERR(skb);
+
+               kfree_skb(skb);
+
+               plen -= fragment_len;
+               param += fragment_len;
+       }
+
+       return 0;
+}
+
+static void btusb_intel_version_info(struct hci_dev *hdev,
+                                    struct intel_version *ver)
+{
+       const char *variant;
+
+       switch (ver->fw_variant) {
+       case 0x06:
+               variant = "Bootloader";
+               break;
+       case 0x23:
+               variant = "Firmware";
+               break;
+       default:
+               return;
+       }
+
+       BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
+               variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
+               ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
+}
+
+static int btusb_setup_intel_new(struct hci_dev *hdev)
+{
+       static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
+                                         0x00, 0x08, 0x04, 0x00 };
+       struct btusb_data *data = hci_get_drvdata(hdev);
+       struct sk_buff *skb;
+       struct intel_version *ver;
+       struct intel_boot_params *params;
+       const struct firmware *fw;
+       const u8 *fw_ptr;
+       char fwname[64];
+       ktime_t calltime, delta, rettime;
+       unsigned long long duration;
+       int err;
+
+       BT_DBG("%s", hdev->name);
+
+       calltime = ktime_get();
+
+       /* Read the Intel version information to determine if the device
+        * is in bootloader mode or if it already has operational firmware
+        * loaded.
+        */
+       skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb)) {
+               BT_ERR("%s: Reading Intel version information failed (%ld)",
+                      hdev->name, PTR_ERR(skb));
+               return PTR_ERR(skb);
+       }
+
+       if (skb->len != sizeof(*ver)) {
+               BT_ERR("%s: Intel version event size mismatch", hdev->name);
+               kfree_skb(skb);
+               return -EILSEQ;
+       }
+
+       ver = (struct intel_version *)skb->data;
+       if (ver->status) {
+               BT_ERR("%s: Intel version command failure (%02x)",
+                      hdev->name, ver->status);
+               err = -bt_to_errno(ver->status);
+               kfree_skb(skb);
+               return err;
+       }
+
+       /* The hardware platform number has a fixed value of 0x37 and
+        * for now only accept this single value.
+        */
+       if (ver->hw_platform != 0x37) {
+               BT_ERR("%s: Unsupported Intel hardware platform (%u)",
+                      hdev->name, ver->hw_platform);
+               kfree_skb(skb);
+               return -EINVAL;
+       }
+
+       /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
+        * supported by this firmware loading method. This check has been
+        * put in place to ensure correct forward compatibility options
+        * when newer hardware variants come along.
+        */
+       if (ver->hw_variant != 0x0b) {
+               BT_ERR("%s: Unsupported Intel hardware variant (%u)",
+                      hdev->name, ver->hw_variant);
+               kfree_skb(skb);
+               return -EINVAL;
+       }
+
+       btusb_intel_version_info(hdev, ver);
+
+       /* The firmware variant determines if the device is in bootloader
+        * mode or is running operational firmware. The value 0x06 identifies
+        * the bootloader and the value 0x23 identifies the operational
+        * firmware.
+        *
+        * When the operational firmware is already present, then only
+        * the check for valid Bluetooth device address is needed. This
+        * determines if the device will be added as configured or
+        * unconfigured controller.
+        *
+        * It is not possible to use the Secure Boot Parameters in this
+        * case since that command is only available in bootloader mode.
+        */
+       if (ver->fw_variant == 0x23) {
+               kfree_skb(skb);
+               clear_bit(BTUSB_BOOTLOADER, &data->flags);
+               btusb_check_bdaddr_intel(hdev);
+               return 0;
+       }
+
+       /* If the device is not in bootloader mode, then the only possible
+        * choice is to return an error and abort the device initialization.
+        */
+       if (ver->fw_variant != 0x06) {
+               BT_ERR("%s: Unsupported Intel firmware variant (%u)",
+                      hdev->name, ver->fw_variant);
+               kfree_skb(skb);
+               return -ENODEV;
+       }
+
+       kfree_skb(skb);
+
+       /* Read the secure boot parameters to identify the operating
+        * details of the bootloader.
+        */
+       skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb)) {
+               BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
+                      hdev->name, PTR_ERR(skb));
+               return PTR_ERR(skb);
+       }
+
+       if (skb->len != sizeof(*params)) {
+               BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
+               kfree_skb(skb);
+               return -EILSEQ;
+       }
+
+       params = (struct intel_boot_params *)skb->data;
+       if (params->status) {
+               BT_ERR("%s: Intel boot parameters command failure (%02x)",
+                      hdev->name, params->status);
+               err = -bt_to_errno(params->status);
+               kfree_skb(skb);
+               return err;
+       }
+
+       BT_INFO("%s: Device revision is %u", hdev->name,
+               le16_to_cpu(params->dev_revid));
+
+       BT_INFO("%s: Secure boot is %s", hdev->name,
+               params->secure_boot ? "enabled" : "disabled");
+
+       BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
+               params->min_fw_build_nn, params->min_fw_build_cw,
+               2000 + params->min_fw_build_yy);
+
+       /* It is required that every single firmware fragment is acknowledged
+        * with a command complete event. If the boot parameters indicate
+        * that this bootloader does not send them, then abort the setup.
+        */
+       if (params->limited_cce != 0x00) {
+               BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
+                      hdev->name, params->limited_cce);
+               kfree_skb(skb);
+               return -EINVAL;
+       }
+
+       /* If the OTP has no valid Bluetooth device address, then there will
+        * also be no valid address for the operational firmware.
+        */
+       if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
+               BT_INFO("%s: No device address configured", hdev->name);
+               set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
+       }
+
+       /* With this Intel bootloader only the hardware variant and device
+        * revision information are used to select the right firmware.
+        *
+        * Currently this bootloader support is limited to hardware variant
+        * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
+        */
+       snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
+                le16_to_cpu(params->dev_revid));
+
+       err = request_firmware(&fw, fwname, &hdev->dev);
+       if (err < 0) {
+               BT_ERR("%s: Failed to load Intel firmware file (%d)",
+                      hdev->name, err);
+               kfree_skb(skb);
+               return err;
+       }
+
+       BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
+
+       kfree_skb(skb);
+
+       if (fw->size < 644) {
+               BT_ERR("%s: Invalid size of firmware file (%zu)",
+                      hdev->name, fw->size);
+               err = -EBADF;
+               goto done;
+       }
+
+       set_bit(BTUSB_DOWNLOADING, &data->flags);
+
+       /* Start the firmware download transaction with the Init fragment
+        * represented by the 128 bytes of CSS header.
+        */
+       err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
+       if (err < 0) {
+               BT_ERR("%s: Failed to send firmware header (%d)",
+                      hdev->name, err);
+               goto done;
+       }
+
+       /* Send the 256 bytes of public key information from the firmware
+        * as the PKey fragment.
+        */
+       err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
+       if (err < 0) {
+               BT_ERR("%s: Failed to send firmware public key (%d)",
+                      hdev->name, err);
+               goto done;
+       }
+
+       /* Send the 256 bytes of signature information from the firmware
+        * as the Sign fragment.
+        */
+       err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
+       if (err < 0) {
+               BT_ERR("%s: Failed to send firmware signature (%d)",
+                      hdev->name, err);
+               goto done;
+       }
+
+       fw_ptr = fw->data + 644;
+
+       while (fw_ptr - fw->data < fw->size) {
+               struct hci_command_hdr *cmd = (void *)fw_ptr;
+               u8 cmd_len;
+
+               cmd_len = sizeof(*cmd) + cmd->plen;
+
+               /* Send each command from the firmware data buffer as
+                * a single Data fragment.
+                */
+               err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
+               if (err < 0) {
+                       BT_ERR("%s: Failed to send firmware data (%d)",
+                              hdev->name, err);
+                       goto done;
+               }
+
+               fw_ptr += cmd_len;
+       }
+
+       set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
+
+       BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
+
+       /* Before switching the device into operational mode and with that
+        * booting the loaded firmware, wait for the bootloader notification
+        * that all fragments have been successfully received.
+        *
+        * When the event processing receives the notification, then the
+        * BTUSB_DOWNLOADING flag will be cleared.
+        *
+        * The firmware loading should not take longer than 5 seconds
+        * and thus just timeout if that happens and fail the setup
+        * of this device.
+        */
+       err = btusb_wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
+                                       msecs_to_jiffies(5000),
+                                       TASK_INTERRUPTIBLE);
+       if (err == 1) {
+               BT_ERR("%s: Firmware loading interrupted", hdev->name);
+               err = -EINTR;
+               goto done;
+       }
+
+       if (err) {
+               BT_ERR("%s: Firmware loading timeout", hdev->name);
+               err = -ETIMEDOUT;
+               goto done;
+       }
+
+       if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
+               BT_ERR("%s: Firmware loading failed", hdev->name);
+               err = -ENOEXEC;
+               goto done;
+       }
+
+       rettime = ktime_get();
+       delta = ktime_sub(rettime, calltime);
+       duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+
+       BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
+
+done:
+       release_firmware(fw);
+
+       if (err < 0)
+               return err;
+
+       calltime = ktime_get();
+
+       set_bit(BTUSB_BOOTING, &data->flags);
+
+       skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
+                            HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb))
+               return PTR_ERR(skb);
+
+       kfree_skb(skb);
+
+       /* The bootloader will not indicate when the device is ready. This
+        * is done by the operational firmware sending bootup notification.
+        *
+        * Booting into operational firmware should not take longer than
+        * 1 second. However if that happens, then just fail the setup
+        * since something went wrong.
+        */
+       BT_INFO("%s: Waiting for device to boot", hdev->name);
+
+       err = btusb_wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
+                                       msecs_to_jiffies(1000),
+                                       TASK_INTERRUPTIBLE);
+
+       if (err == 1) {
+               BT_ERR("%s: Device boot interrupted", hdev->name);
+               return -EINTR;
+       }
+
+       if (err) {
+               BT_ERR("%s: Device boot timeout", hdev->name);
+               return -ETIMEDOUT;
+       }
+
+       rettime = ktime_get();
+       delta = ktime_sub(rettime, calltime);
+       duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+
+       BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
+
+       clear_bit(BTUSB_BOOTLOADER, &data->flags);
+
+       return 0;
+}
+
+static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
+{
+       struct sk_buff *skb;
+       u8 type = 0x00;
+
+       BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
+
+       skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb)) {
+               BT_ERR("%s: Reset after hardware error failed (%ld)",
+                      hdev->name, PTR_ERR(skb));
+               return;
+       }
+       kfree_skb(skb);
+
+       skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
+       if (IS_ERR(skb)) {
+               BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
+                      hdev->name, PTR_ERR(skb));
+               return;
+       }
+
+       if (skb->len != 13) {
+               BT_ERR("%s: Exception info size mismatch", hdev->name);
+               kfree_skb(skb);
+               return;
+       }
+
+       if (skb->data[0] != 0x00) {
+               BT_ERR("%s: Exception info command failure (%02x)",
+                      hdev->name, skb->data[0]);
+               kfree_skb(skb);
+               return;
+       }
+
+       BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
+
+       kfree_skb(skb);
+}
+
 static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
 {
        struct sk_buff *skb;
@@ -2035,7 +2644,13 @@ static int btusb_probe(struct usb_interface *intf,
        if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
                return -ENODEV;
 
-       data->cmdreq_type = USB_TYPE_CLASS;
+       if (id->driver_info & BTUSB_AMP) {
+               data->cmdreq_type = USB_TYPE_CLASS | 0x01;
+               data->cmdreq = 0x2b;
+       } else {
+               data->cmdreq_type = USB_TYPE_CLASS;
+               data->cmdreq = 0x00;
+       }
 
        data->udev = interface_to_usbdev(intf);
        data->intf = intf;
@@ -2051,8 +2666,14 @@ static int btusb_probe(struct usb_interface *intf,
        init_usb_anchor(&data->isoc_anchor);
        spin_lock_init(&data->rxlock);
 
-       data->recv_event = hci_recv_frame;
-       data->recv_bulk = btusb_recv_bulk;
+       if (id->driver_info & BTUSB_INTEL_NEW) {
+               data->recv_event = btusb_recv_event_intel;
+               data->recv_bulk = btusb_recv_bulk_intel;
+               set_bit(BTUSB_BOOTLOADER, &data->flags);
+       } else {
+               data->recv_event = hci_recv_frame;
+               data->recv_bulk = btusb_recv_bulk;
+       }
 
        hdev = hci_alloc_dev();
        if (!hdev)
@@ -2061,6 +2682,11 @@ static int btusb_probe(struct usb_interface *intf,
        hdev->bus = HCI_USB;
        hci_set_drvdata(hdev, data);
 
+       if (id->driver_info & BTUSB_AMP)
+               hdev->dev_type = HCI_AMP;
+       else
+               hdev->dev_type = HCI_BREDR;
+
        data->hdev = hdev;
 
        SET_HCIDEV_DEV(hdev, &intf->dev);
@@ -2083,6 +2709,15 @@ static int btusb_probe(struct usb_interface *intf,
        if (id->driver_info & BTUSB_INTEL) {
                hdev->setup = btusb_setup_intel;
                hdev->set_bdaddr = btusb_set_bdaddr_intel;
+               set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+       }
+
+       if (id->driver_info & BTUSB_INTEL_NEW) {
+               hdev->send = btusb_send_frame_intel;
+               hdev->setup = btusb_setup_intel_new;
+               hdev->hw_error = btusb_hw_error_intel;
+               hdev->set_bdaddr = btusb_set_bdaddr_intel;
+               set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
        }
 
        if (id->driver_info & BTUSB_MARVELL)
@@ -2096,11 +2731,18 @@ static int btusb_probe(struct usb_interface *intf,
        if (id->driver_info & BTUSB_INTEL_BOOT)
                set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
 
-       if (id->driver_info & BTUSB_ATH3012)
+       if (id->driver_info & BTUSB_ATH3012) {
                hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+               set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+       }
 
-       /* Interface numbers are hardcoded in the specification */
-       data->isoc = usb_ifnum_to_if(data->udev, 1);
+       if (id->driver_info & BTUSB_AMP) {
+               /* AMP controllers do not support SCO packets */
+               data->isoc = NULL;
+       } else {
+               /* 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);
@@ -2194,7 +2836,6 @@ static void btusb_disconnect(struct usb_interface *intf)
        else if (data->isoc)
                usb_driver_release_interface(&btusb_driver, data->isoc);
 
-       btusb_free_frags(data);
        hci_free_dev(hdev);
 }