diff options
Diffstat (limited to 'drivers/bluetooth/hci_usb.h')
| -rw-r--r-- | drivers/bluetooth/hci_usb.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_usb.h b/drivers/bluetooth/hci_usb.h new file mode 100644 index 0000000..8e65991 --- /dev/null +++ b/drivers/bluetooth/hci_usb.h @@ -0,0 +1,129 @@ +/* + 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. +*/ + +/* Class, SubClass, and Protocol codes that describe a Bluetooth device */ +#define HCI_DEV_CLASS 0xe0 /* Wireless class */ +#define HCI_DEV_SUBCLASS 0x01 /* RF subclass */ +#define HCI_DEV_PROTOCOL 0x01 /* Bluetooth programming protocol */ + +#define HCI_IGNORE 0x01 +#define HCI_RESET 0x02 +#define HCI_DIGIANSWER 0x04 +#define HCI_CSR 0x08 +#define HCI_SNIFFER 0x10 +#define HCI_BCM92035 0x20 +#define HCI_BROKEN_ISOC 0x40 +#define HCI_WRONG_SCO_MTU 0x80 + +#define HCI_MAX_IFACE_NUM 3 + +#define HCI_MAX_BULK_TX 4 +#define HCI_MAX_BULK_RX 1 + +#define HCI_MAX_ISOC_RX 2 +#define HCI_MAX_ISOC_TX 2 + +#define HCI_MAX_ISOC_FRAMES 10 + +struct _urb_queue { + struct list_head head; + spinlock_t lock; +}; + +struct _urb { + struct list_head list; + struct _urb_queue *queue; + int type; + void *priv; + struct urb urb; +}; + +static inline void _urb_queue_init(struct _urb_queue *q) +{ + INIT_LIST_HEAD(&q->head); + spin_lock_init(&q->lock); +} + +static inline void _urb_queue_head(struct _urb_queue *q, struct _urb *_urb) +{ + unsigned long flags; + spin_lock_irqsave(&q->lock, flags); + /* _urb_unlink needs to know which spinlock to use, thus smp_mb(). */ + _urb->queue = q; smp_mb(); list_add(&_urb->list, &q->head); + spin_unlock_irqrestore(&q->lock, flags); +} + +static inline void _urb_queue_tail(struct _urb_queue *q, struct _urb *_urb) +{ + unsigned long flags; + spin_lock_irqsave(&q->lock, flags); + /* _urb_unlink needs to know which spinlock to use, thus smp_mb(). */ + _urb->queue = q; smp_mb(); list_add_tail(&_urb->list, &q->head); + spin_unlock_irqrestore(&q->lock, flags); +} + +static inline void _urb_unlink(struct _urb *_urb) +{ + struct _urb_queue *q; + unsigned long flags; + + smp_mb(); + q = _urb->queue; + /* If q is NULL, it will die at easy-to-debug NULL pointer dereference. + No need to BUG(). */ + spin_lock_irqsave(&q->lock, flags); + list_del(&_urb->list); _urb->queue = NULL; + spin_unlock_irqrestore(&q->lock, flags); +} + +struct hci_usb { + struct hci_dev *hdev; + + unsigned long state; + + struct usb_device *udev; + + struct usb_host_endpoint *bulk_in_ep; + struct usb_host_endpoint *bulk_out_ep; + struct usb_host_endpoint *intr_in_ep; + + struct usb_interface *isoc_iface; + struct usb_host_endpoint *isoc_out_ep; + struct usb_host_endpoint *isoc_in_ep; + + __u8 ctrl_req; + + struct sk_buff_head transmit_q[4]; + + rwlock_t completion_lock; + + atomic_t pending_tx[4]; /* Number of pending requests */ + struct _urb_queue pending_q[4]; /* Pending requests */ + struct _urb_queue completed_q[4]; /* Completed requests */ +}; + +/* States */ +#define HCI_USB_TX_PROCESS 1 +#define HCI_USB_TX_WAKEUP 2 |
