+++ /dev/null
-/*
- 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");
projects / linux-beck.git / commitdiff