diff options
Diffstat (limited to 'drivers/bluetooth/hci_usb.c')
| -rw-r--r-- | drivers/bluetooth/hci_usb.c | 1136 |
1 files changed, 0 insertions, 1136 deletions
diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c deleted file mode 100644 index 3c453924f838..000000000000 --- a/drivers/bluetooth/hci_usb.c +++ /dev/null @@ -1,1136 +0,0 @@ -/* - HCI USB driver for Linux Bluetooth protocol stack (BlueZ) - Copyright (C) 2000-2001 Qualcomm Incorporated - Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> - - Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License version 2 as - published by the Free Software Foundation; - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. - IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY - CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - - ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, - COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS - SOFTWARE IS DISCLAIMED. -*/ - -/* - * Bluetooth HCI USB driver. - * Based on original USB Bluetooth driver for Linux kernel - * Copyright (c) 2000 Greg Kroah-Hartman <greg@kroah.com> - * Copyright (c) 2000 Mark Douglas Corner <mcorner@umich.edu> - * - */ - -#include <linux/module.h> - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/unistd.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/moduleparam.h> - -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/skbuff.h> - -#include <linux/usb.h> - -#include <net/bluetooth/bluetooth.h> -#include <net/bluetooth/hci_core.h> - -#include "hci_usb.h" - -#ifndef CONFIG_BT_HCIUSB_DEBUG -#undef BT_DBG -#define BT_DBG(D...) -#endif - -#ifndef CONFIG_BT_HCIUSB_ZERO_PACKET -#undef URB_ZERO_PACKET -#define URB_ZERO_PACKET 0 -#endif - -static int ignore_dga; -static int ignore_csr; -static int ignore_sniffer; -static int disable_scofix; -static int force_scofix; -static int reset; - -#ifdef CONFIG_BT_HCIUSB_SCO -static int isoc = 2; -#endif - -#define VERSION "2.10" - -static struct usb_driver hci_usb_driver; - -static struct usb_device_id bluetooth_ids[] = { - /* Generic Bluetooth USB device */ - { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, - - /* AVM BlueFRITZ! USB v2.0 */ - { USB_DEVICE(0x057c, 0x3800) }, - - /* Bluetooth Ultraport Module from IBM */ - { USB_DEVICE(0x04bf, 0x030a) }, - - /* ALPS Modules with non-standard id */ - { USB_DEVICE(0x044e, 0x3001) }, - { USB_DEVICE(0x044e, 0x3002) }, - - /* Ericsson with non-standard id */ - { USB_DEVICE(0x0bdb, 0x1002) }, - - /* Canyon CN-BTU1 with HID interfaces */ - { USB_DEVICE(0x0c10, 0x0000), .driver_info = HCI_RESET }, - - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, bluetooth_ids); - -static struct usb_device_id blacklist_ids[] = { - /* CSR BlueCore devices */ - { USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR }, - - /* Broadcom BCM2033 without firmware */ - { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, - - /* Broadcom BCM2035 */ - { USB_DEVICE(0x0a5c, 0x2035), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, - - /* Broadcom BCM2045 */ - { USB_DEVICE(0x0a5c, 0x2039), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - { USB_DEVICE(0x0a5c, 0x2101), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* IBM/Lenovo ThinkPad with Broadcom chip */ - { USB_DEVICE(0x0a5c, 0x201e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - { USB_DEVICE(0x0a5c, 0x2110), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* Targus ACB10US */ - { USB_DEVICE(0x0a5c, 0x2100), .driver_info = HCI_RESET }, - - /* ANYCOM Bluetooth USB-200 and USB-250 */ - { USB_DEVICE(0x0a5c, 0x2111), .driver_info = HCI_RESET }, - - /* HP laptop with Broadcom chip */ - { USB_DEVICE(0x03f0, 0x171d), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* Dell laptop with Broadcom chip */ - { USB_DEVICE(0x413c, 0x8126), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - /* Dell Wireless 370 */ - { USB_DEVICE(0x413c, 0x8156), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - /* Dell Wireless 410 */ - { USB_DEVICE(0x413c, 0x8152), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* Broadcom 2046 */ - { USB_DEVICE(0x0a5c, 0x2151), .driver_info = HCI_RESET }, - - /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ - { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, - - /* Kensington Bluetooth USB adapter */ - { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, - { USB_DEVICE(0x047d, 0x105e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* ISSC Bluetooth Adapter v3.1 */ - { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, - - /* RTX Telecom based adapters with buggy SCO support */ - { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, - { USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC }, - - /* CONWISE Technology based adapters with buggy SCO support */ - { USB_DEVICE(0x0e5e, 0x6622), .driver_info = HCI_BROKEN_ISOC }, - - /* Belkin F8T012 and F8T013 devices */ - { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - { USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, - - /* Digianswer devices */ - { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, - { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, - - /* CSR BlueCore Bluetooth Sniffer */ - { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, - - /* Frontline ComProbe Bluetooth Sniffer */ - { USB_DEVICE(0x16d3, 0x0002), .driver_info = HCI_SNIFFER }, - - { } /* Terminating entry */ -}; - -static struct _urb *_urb_alloc(int isoc, gfp_t gfp) -{ - struct _urb *_urb = kmalloc(sizeof(struct _urb) + - sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); - if (_urb) { - memset(_urb, 0, sizeof(*_urb)); - usb_init_urb(&_urb->urb); - } - return _urb; -} - -static struct _urb *_urb_dequeue(struct _urb_queue *q) -{ - struct _urb *_urb = NULL; - unsigned long flags; - spin_lock_irqsave(&q->lock, flags); - { - struct list_head *head = &q->head; - struct list_head *next = head->next; - if (next != head) { - _urb = list_entry(next, struct _urb, list); - list_del(next); _urb->queue = NULL; - } - } - spin_unlock_irqrestore(&q->lock, flags); - return _urb; -} - -static void hci_usb_rx_complete(struct urb *urb); -static void hci_usb_tx_complete(struct urb *urb); - -#define __pending_tx(husb, type) (&husb->pending_tx[type-1]) -#define __pending_q(husb, type) (&husb->pending_q[type-1]) -#define __completed_q(husb, type) (&husb->completed_q[type-1]) -#define __transmit_q(husb, type) (&husb->transmit_q[type-1]) - -static inline struct _urb *__get_completed(struct hci_usb *husb, int type) -{ - return _urb_dequeue(__completed_q(husb, type)); -} - -#ifdef CONFIG_BT_HCIUSB_SCO -static void __fill_isoc_desc(struct urb *urb, int len, int mtu) -{ - int offset = 0, i; - - BT_DBG("len %d mtu %d", len, mtu); - - for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { - urb->iso_frame_desc[i].offset = offset; - urb->iso_frame_desc[i].length = mtu; - BT_DBG("desc %d offset %d len %d", i, offset, mtu); - } - if (len && i < HCI_MAX_ISOC_FRAMES) { - urb->iso_frame_desc[i].offset = offset; - urb->iso_frame_desc[i].length = len; - BT_DBG("desc %d offset %d len %d", i, offset, len); - i++; - } - urb->number_of_packets = i; -} -#endif - -static int hci_usb_intr_rx_submit(struct hci_usb *husb) -{ - struct _urb *_urb; - struct urb *urb; - int err, pipe, interval, size; - void *buf; - - BT_DBG("%s", husb->hdev->name); - - size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); - - buf = kmalloc(size, GFP_ATOMIC); - if (!buf) - return -ENOMEM; - - _urb = _urb_alloc(0, GFP_ATOMIC); - if (!_urb) { - kfree(buf); - return -ENOMEM; - } - _urb->type = HCI_EVENT_PKT; - _urb_queue_tail(__pending_q(husb, _urb->type), _urb); - - urb = &_urb->urb; - pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); - interval = husb->intr_in_ep->desc.bInterval; - usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); - - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) { - BT_ERR("%s intr rx submit failed urb %p err %d", - husb->hdev->name, urb, err); - _urb_unlink(_urb); - kfree(_urb); - kfree(buf); - } - return err; -} - -static int hci_usb_bulk_rx_submit(struct hci_usb *husb) -{ - struct _urb *_urb; - struct urb *urb; - int err, pipe, size = HCI_MAX_FRAME_SIZE; - void *buf; - - buf = kmalloc(size, GFP_ATOMIC); - if (!buf) - return -ENOMEM; - - _urb = _urb_alloc(0, GFP_ATOMIC); - if (!_urb) { - kfree(buf); - return -ENOMEM; - } - _urb->type = HCI_ACLDATA_PKT; - _urb_queue_tail(__pending_q(husb, _urb->type), _urb); - - urb = &_urb->urb; - pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); - usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); - urb->transfer_flags = 0; - - BT_DBG("%s urb %p", husb->hdev->name, urb); - - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) { - BT_ERR("%s bulk rx submit failed urb %p err %d", - husb->hdev->name, urb, err); - _urb_unlink(_urb); - kfree(_urb); - kfree(buf); - } - return err; -} - -#ifdef CONFIG_BT_HCIUSB_SCO -static int hci_usb_isoc_rx_submit(struct hci_usb *husb) -{ - struct _urb *_urb; - struct urb *urb; - int err, mtu, size; - void *buf; - - mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); - size = mtu * HCI_MAX_ISOC_FRAMES; - - buf = kmalloc(size, GFP_ATOMIC); - if (!buf) - return -ENOMEM; - - _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); - if (!_urb) { - kfree(buf); - return -ENOMEM; - } - _urb->type = HCI_SCODATA_PKT; - _urb_queue_tail(__pending_q(husb, _urb->type), _urb); - - urb = &_urb->urb; - - urb->context = husb; - urb->dev = husb->udev; - urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); - urb->complete = hci_usb_rx_complete; - - urb->interval = husb->isoc_in_ep->desc.bInterval; - - urb->transfer_buffer_length = size; - urb->transfer_buffer = buf; - urb->transfer_flags = URB_ISO_ASAP; - - __fill_isoc_desc(urb, size, mtu); - - BT_DBG("%s urb %p", husb->hdev->name, urb); - - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) { - BT_ERR("%s isoc rx submit failed urb %p err %d", - husb->hdev->name, urb, err); - _urb_unlink(_urb); - kfree(_urb); - kfree(buf); - } - return err; -} -#endif - -/* Initialize device */ -static int hci_usb_open(struct hci_dev *hdev) -{ - struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; - int i, err; - unsigned long flags; - - BT_DBG("%s", hdev->name); - - if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) - return 0; - - write_lock_irqsave(&husb->completion_lock, flags); - - err = hci_usb_intr_rx_submit(husb); - if (!err) { - for (i = 0; i < HCI_MAX_BULK_RX; i++) - hci_usb_bulk_rx_submit(husb); - -#ifdef CONFIG_BT_HCIUSB_SCO - if (husb->isoc_iface) - for (i = 0; i < HCI_MAX_ISOC_RX; i++) - hci_usb_isoc_rx_submit(husb); -#endif - } else { - clear_bit(HCI_RUNNING, &hdev->flags); - } - - write_unlock_irqrestore(&husb->completion_lock, flags); - return err; -} - -/* Reset device */ -static int hci_usb_flush(struct hci_dev *hdev) -{ - struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; - int i; - - BT_DBG("%s", hdev->name); - - for (i = 0; i < 4; i++) - skb_queue_purge(&husb->transmit_q[i]); - return 0; -} - -static void hci_usb_unlink_urbs(struct hci_usb *husb) -{ - int i; - - BT_DBG("%s", husb->hdev->name); - - for (i = 0; i < 4; i++) { - struct _urb *_urb; - struct urb *urb; - - /* Kill pending requests */ - while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { - urb = &_urb->urb; - BT_DBG("%s unlinking _urb %p type %d urb %p", - husb->hdev->name, _urb, _urb->type, urb); - usb_kill_urb(urb); - _urb_queue_tail(__completed_q(husb, _urb->type), _urb); - } - - /* Release completed requests */ - while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { - urb = &_urb->urb; - BT_DBG("%s freeing _urb %p type %d urb %p", - husb->hdev->name, _urb, _urb->type, urb); - kfree(urb->setup_packet); - kfree(urb->transfer_buffer); - kfree(_urb); - } - } -} - -/* Close device */ -static int hci_usb_close(struct hci_dev *hdev) -{ - struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; - unsigned long flags; - - if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) - return 0; - - BT_DBG("%s", hdev->name); - - /* Synchronize with completion handlers */ - write_lock_irqsave(&husb->completion_lock, flags); - write_unlock_irqrestore(&husb->completion_lock, flags); - - hci_usb_unlink_urbs(husb); - hci_usb_flush(hdev); - return 0; -} - -static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) -{ - struct urb *urb = &_urb->urb; - int err; - - BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); - - _urb_queue_tail(__pending_q(husb, _urb->type), _urb); - err = usb_submit_urb(urb, GFP_ATOMIC); - if (err) { - BT_ERR("%s tx submit failed urb %p type %d err %d", - husb->hdev->name, urb, _urb->type, err); - _urb_unlink(_urb); - _urb_queue_tail(__completed_q(husb, _urb->type), _urb); - } else - atomic_inc(__pending_tx(husb, _urb->type)); - - return err; -} - -static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) -{ - struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); - struct usb_ctrlrequest *dr; - struct urb *urb; - - if (!_urb) { - _urb = _urb_alloc(0, GFP_ATOMIC); - if (!_urb) - return -ENOMEM; - _urb->type = bt_cb(skb)->pkt_type; - - dr = kmalloc(sizeof(*dr), GFP_ATOMIC); - if (!dr) { - kfree(_urb); - return -ENOMEM; - } - } else - dr = (void *) _urb->urb.setup_packet; - - dr->bRequestType = husb->ctrl_req; - dr->bRequest = 0; - dr->wIndex = 0; - dr->wValue = 0; - dr->wLength = __cpu_to_le16(skb->len); - - urb = &_urb->urb; - usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), - (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); - - BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); - - _urb->priv = skb; - return __tx_submit(husb, _urb); -} - -static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb) -{ - struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); - struct urb *urb; - int pipe; - - if (!_urb) { - _urb = _urb_alloc(0, GFP_ATOMIC); - if (!_urb) - return -ENOMEM; - _urb->type = bt_cb(skb)->pkt_type; - } - - urb = &_urb->urb; - pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); - usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, - hci_usb_tx_complete, husb); - urb->transfer_flags = URB_ZERO_PACKET; - - BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); - - _urb->priv = skb; - return __tx_submit(husb, _urb); -} - -#ifdef CONFIG_BT_HCIUSB_SCO -static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) -{ - struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); - struct urb *urb; - - if (!_urb) { - _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); - if (!_urb) - return -ENOMEM; - _urb->type = bt_cb(skb)->pkt_type; - } - - BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); - - urb = &_urb->urb; - - urb->context = husb; - urb->dev = husb->udev; - urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); - urb->complete = hci_usb_tx_complete; - urb->transfer_flags = URB_ISO_ASAP; - - urb->interval = husb->isoc_out_ep->desc.bInterval; - - urb->transfer_buffer = skb->data; - urb->transfer_buffer_length = skb->len; - - __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); - - _urb->priv = skb; - return __tx_submit(husb, _urb); -} -#endif - -static void hci_usb_tx_process(struct hci_usb *husb) -{ - struct sk_buff_head *q; - struct sk_buff *skb; - - BT_DBG("%s", husb->hdev->name); - - do { - clear_bit(HCI_USB_TX_WAKEUP, &husb->state); - - /* Process command queue */ - q = __transmit_q(husb, HCI_COMMAND_PKT); - if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && - (skb = skb_dequeue(q))) { - if (hci_usb_send_ctrl(husb, skb) < 0) - skb_queue_head(q, skb); - } - -#ifdef CONFIG_BT_HCIUSB_SCO - /* Process SCO queue */ - q = __transmit_q(husb, HCI_SCODATA_PKT); - if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && - (skb = skb_dequeue(q))) { - if (hci_usb_send_isoc(husb, skb) < 0) - skb_queue_head(q, skb); - } -#endif - - /* Process ACL queue */ - q = __transmit_q(husb, HCI_ACLDATA_PKT); - while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && - (skb = skb_dequeue(q))) { - if (hci_usb_send_bulk(husb, skb) < 0) { - skb_queue_head(q, skb); - break; - } - } - } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); -} - -static inline void hci_usb_tx_wakeup(struct hci_usb *husb) -{ - /* Serialize TX queue processing to avoid data reordering */ - if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { - hci_usb_tx_process(husb); - clear_bit(HCI_USB_TX_PROCESS, &husb->state); - } else - set_bit(HCI_USB_TX_WAKEUP, &husb->state); -} - -/* Send frames from HCI layer */ -static int hci_usb_send_frame(struct sk_buff *skb) -{ - struct hci_dev *hdev = (struct hci_dev *) skb->dev; - struct hci_usb *husb; - - if (!hdev) { - BT_ERR("frame for uknown device (hdev=NULL)"); - return -ENODEV; - } - - if (!test_bit(HCI_RUNNING, &hdev->flags)) - return -EBUSY; - - BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); - - husb = (struct hci_usb *) hdev->driver_data; - - switch (bt_cb(skb)->pkt_type) { - case HCI_COMMAND_PKT: - hdev->stat.cmd_tx++; - break; - - case HCI_ACLDATA_PKT: - hdev->stat.acl_tx++; - break; - -#ifdef CONFIG_BT_HCIUSB_SCO - case HCI_SCODATA_PKT: - hdev->stat.sco_tx++; - break; -#endif - - default: - kfree_skb(skb); - return 0; - } - - read_lock(&husb->completion_lock); - - skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); - hci_usb_tx_wakeup(husb); - - read_unlock(&husb->completion_lock); - return 0; -} - -static void hci_usb_rx_complete(struct urb *urb) -{ - struct _urb *_urb = container_of(urb, struct _urb, urb); - struct hci_usb *husb = (void *) urb->context; - struct hci_dev *hdev = husb->hdev; - int err, count = urb->actual_length; - - BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, - _urb->type, urb->status, count, urb->transfer_flags); - - read_lock(&husb->completion_lock); - - if (!test_bit(HCI_RUNNING, &hdev->flags)) - goto unlock; - - if (urb->status || !count) - goto resubmit; - - if (_urb->type == HCI_SCODATA_PKT) { -#ifdef CONFIG_BT_HCIUSB_SCO - int i; - for (i=0; i < urb->number_of_packets; i++) { - BT_DBG("desc %d status %d offset %d len %d", i, - urb->iso_frame_desc[i].status, - urb->iso_frame_desc[i].offset, - urb->iso_frame_desc[i].actual_length); - - if (!urb->iso_frame_desc[i].status) { - husb->hdev->stat.byte_rx += urb->iso_frame_desc[i].actual_length; - hci_recv_fragment(husb->hdev, _urb->type, - urb->transfer_buffer + urb->iso_frame_desc[i].offset, - urb->iso_frame_desc[i].actual_length); - } - } -#else - ; -#endif - } else { - husb->hdev->stat.byte_rx += count; - err = hci_recv_fragment(husb->hdev, _urb->type, urb->transfer_buffer, count); - if (err < 0) { - BT_ERR("%s corrupted packet: type %d count %d", - husb->hdev->name, _urb->type, count); - hdev->stat.err_rx++; - } - } - -resubmit: - urb->dev = husb->udev; - err = usb_submit_urb(urb, GFP_ATOMIC); - BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, - _urb->type, err); - -unlock: - read_unlock(&husb->completion_lock); -} - -static void hci_usb_tx_complete(struct urb *urb) -{ - struct _urb *_urb = container_of(urb, struct _urb, urb); - struct hci_usb *husb = (void *) urb->context; - struct hci_dev *hdev = husb->hdev; - - BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, - urb->status, urb->transfer_flags); - - atomic_dec(__pending_tx(husb, _urb->type)); - - urb->transfer_buffer = NULL; - kfree_skb((struct sk_buff *) _urb->priv); - - if (!test_bit(HCI_RUNNING, &hdev->flags)) - return; - - if (!urb->status) - hdev->stat.byte_tx += urb->transfer_buffer_length; - else - hdev->stat.err_tx++; - - read_lock(&husb->completion_lock); - - _urb_unlink(_urb); - _urb_queue_tail(__completed_q(husb, _urb->type), _urb); - - hci_usb_tx_wakeup(husb); - - read_unlock(&husb->completion_lock); -} - -static void hci_usb_destruct(struct hci_dev *hdev) -{ - struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; - - BT_DBG("%s", hdev->name); - - kfree(husb); -} - -static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) -{ - BT_DBG("%s evt %d", hdev->name, evt); -} - -static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *udev = interface_to_usbdev(intf); - struct usb_host_endpoint *bulk_out_ep = NULL; - struct usb_host_endpoint *bulk_in_ep = NULL; - struct usb_host_endpoint *intr_in_ep = NULL; - struct usb_host_endpoint *ep; - struct usb_host_interface *uif; - struct usb_interface *isoc_iface; - struct hci_usb *husb; - struct hci_dev *hdev; - int i, e, size, isoc_ifnum, isoc_alts; - - BT_DBG("udev %p intf %p", udev, intf); - - if (!id->driver_info) { - const struct usb_device_id *match; - match = usb_match_id(intf, blacklist_ids); - if (match) - id = match; - } - - if (id->driver_info & HCI_IGNORE) - return -ENODEV; - - if (ignore_dga && id->driver_info & HCI_DIGIANSWER) - return -ENODEV; - - if (ignore_csr && id->driver_info & HCI_CSR) - return -ENODEV; - - if (ignore_sniffer && id->driver_info & HCI_SNIFFER) - return -ENODEV; - - if (intf->cur_altsetting->desc.bInterfaceNumber > 0) - return -ENODEV; - - /* Find endpoints that we need */ - uif = intf->cur_altsetting; - for (e = 0; e < uif->desc.bNumEndpoints; e++) { - ep = &uif->endpoint[e]; - - switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { - case USB_ENDPOINT_XFER_INT: - if (ep->desc.bEndpointAddress & USB_DIR_IN) - intr_in_ep = ep; - break; - - case USB_ENDPOINT_XFER_BULK: - if (ep->desc.bEndpointAddress & USB_DIR_IN) - bulk_in_ep = ep; - else - bulk_out_ep = ep; - break; - } - } - - if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { - BT_DBG("Bulk endpoints not found"); - goto done; - } - - if (!(husb = kzalloc(sizeof(struct hci_usb), GFP_KERNEL))) { - BT_ERR("Can't allocate: control structure"); - goto done; - } - - husb->udev = udev; - husb->bulk_out_ep = bulk_out_ep; - husb->bulk_in_ep = bulk_in_ep; - husb->intr_in_ep = intr_in_ep; - - if (id->driver_info & HCI_DIGIANSWER) - husb->ctrl_req = USB_TYPE_VENDOR; - else - husb->ctrl_req = USB_TYPE_CLASS; - - /* Find isochronous endpoints that we can use */ - size = 0; - isoc_iface = NULL; - isoc_alts = 0; - isoc_ifnum = 1; - -#ifdef CONFIG_BT_HCIUSB_SCO - if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) - isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); - - if (isoc_iface) { - int a; - struct usb_host_endpoint *isoc_out_ep = NULL; - struct usb_host_endpoint *isoc_in_ep = NULL; - - for (a = 0; a < isoc_iface->num_altsetting; a++) { - uif = &isoc_iface->altsetting[a]; - for (e = 0; e < uif->desc.bNumEndpoints; e++) { - ep = &uif->endpoint[e]; - - switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { - case USB_ENDPOINT_XFER_ISOC: - if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || - uif->desc.bAlternateSetting != isoc) - break; - size = le16_to_cpu(ep->desc.wMaxPacketSize); - - isoc_alts = uif->desc.bAlternateSetting; - - if (ep->desc.bEndpointAddress & USB_DIR_IN) - isoc_in_ep = ep; - else - isoc_out_ep = ep; - break; - } - } - } - - if (!isoc_in_ep || !isoc_out_ep) - BT_DBG("Isoc endpoints not found"); - else { - BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); - if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) - BT_ERR("Can't claim isoc interface"); - else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { - BT_ERR("Can't set isoc interface settings"); - husb->isoc_iface = isoc_iface; - usb_driver_release_interface(&hci_usb_driver, isoc_iface); - husb->isoc_iface = NULL; - } else { - husb->isoc_iface = isoc_iface; - husb->isoc_in_ep = isoc_in_ep; - husb->isoc_out_ep = isoc_out_ep; - } - } - } -#endif - - rwlock_init(&husb->completion_lock); - - for (i = 0; i < 4; i++) { - skb_queue_head_init(&husb->transmit_q[i]); - _urb_queue_init(&husb->pending_q[i]); - _urb_queue_init(&husb->completed_q[i]); - } - - /* Initialize and register HCI device */ - hdev = hci_alloc_dev(); - if (!hdev) { - BT_ERR("Can't allocate HCI device"); - goto probe_error; - } - - husb->hdev = hdev; - - hdev->type = HCI_USB; - hdev->driver_data = husb; - SET_HCIDEV_DEV(hdev, &intf->dev); - - hdev->open = hci_usb_open; - hdev->close = hci_usb_close; - hdev->flush = hci_usb_flush; - hdev->send = hci_usb_send_frame; - hdev->destruct = hci_usb_destruct; - hdev->notify = hci_usb_notify; - - hdev->owner = THIS_MODULE; - - if (reset || id->driver_info & HCI_RESET) - set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); - - if (force_scofix || id->driver_info & HCI_WRONG_SCO_MTU) { - if (!disable_scofix) - set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); - } - - if (id->driver_info & HCI_SNIFFER) { - if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) - set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); - } - - if (id->driver_info & HCI_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 (hci_register_dev(hdev) < 0) { - BT_ERR("Can't register HCI device"); - hci_free_dev(hdev); - goto probe_error; - } - - usb_set_intfdata(intf, husb); - return 0; - -probe_error: - if (husb->isoc_iface) - usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); - kfree(husb); - -done: - return -EIO; -} - -static void hci_usb_disconnect(struct usb_interface *intf) -{ - struct hci_usb *husb = usb_get_intfdata(intf); - struct hci_dev *hdev; - - if (!husb || intf == husb->isoc_iface) - return; - - usb_set_intfdata(intf, NULL); - hdev = husb->hdev; - - BT_DBG("%s", hdev->name); - - hci_usb_close(hdev); - - if (husb->isoc_iface) - usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); - - if (hci_unregister_dev(hdev) < 0) - BT_ERR("Can't unregister HCI device %s", hdev->name); - - hci_free_dev(hdev); -} - -static int hci_usb_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct hci_usb *husb = usb_get_intfdata(intf); - struct list_head killed; - unsigned long flags; - int i; - - if (!husb || intf == husb->isoc_iface) - return 0; - - hci_suspend_dev(husb->hdev); - - INIT_LIST_HEAD(&killed); - - for (i = 0; i < 4; i++) { - struct _urb_queue *q = &husb->pending_q[i]; - struct _urb *_urb, *_tmp; - - while ((_urb = _urb_dequeue(q))) { - /* reset queue since _urb_dequeue sets it to NULL */ - _urb->queue = q; - usb_kill_urb(&_urb->urb); - list_add(&_urb->list, &killed); - } - - spin_lock_irqsave(&q->lock, flags); - - list_for_each_entry_safe(_urb, _tmp, &killed, list) { - list_move_tail(&_urb->list, &q->head); - } - - spin_unlock_irqrestore(&q->lock, flags); - } - - return 0; -} - -static int hci_usb_resume(struct usb_interface *intf) -{ - struct hci_usb *husb = usb_get_intfdata(intf); - unsigned long flags; - int i, err = 0; - - if (!husb || intf == husb->isoc_iface) - return 0; - - for (i = 0; i < 4; i++) { - struct _urb_queue *q = &husb->pending_q[i]; - struct _urb *_urb; - - spin_lock_irqsave(&q->lock, flags); - - list_for_each_entry(_urb, &q->head, list) { - err = usb_submit_urb(&_urb->urb, GFP_ATOMIC); - if (err) - break; - } - - spin_unlock_irqrestore(&q->lock, flags); - - if (err) - return -EIO; - } - - hci_resume_dev(husb->hdev); - - return 0; -} - -static struct usb_driver hci_usb_driver = { - .name = "hci_usb", - .probe = hci_usb_probe, - .disconnect = hci_usb_disconnect, - .suspend = hci_usb_suspend, - .resume = hci_usb_resume, - .id_table = bluetooth_ids, -}; - -static int __init hci_usb_init(void) -{ - int err; - - BT_INFO("HCI USB driver ver %s", VERSION); - - if ((err = usb_register(&hci_usb_driver)) < 0) - BT_ERR("Failed to register HCI USB driver"); - - return err; -} - -static void __exit hci_usb_exit(void) -{ - usb_deregister(&hci_usb_driver); -} - -module_init(hci_usb_init); -module_exit(hci_usb_exit); - -module_param(ignore_dga, bool, 0644); -MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); - -module_param(ignore_csr, bool, 0644); -MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); - -module_param(ignore_sniffer, bool, 0644); -MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); - -module_param(disable_scofix, bool, 0644); -MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); - -module_param(force_scofix, bool, 0644); -MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); - -module_param(reset, bool, 0644); -MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); - -#ifdef CONFIG_BT_HCIUSB_SCO -module_param(isoc, int, 0644); -MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); -#endif - -MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); -MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); -MODULE_VERSION(VERSION); -MODULE_LICENSE("GPL"); |
