Commit 2dbbab6f authored by Maksim Krasnyanskiy's avatar Maksim Krasnyanskiy

[Bluetooth] HCI USB driver update. Support for SCO over HCI USB.

URB and buffer managment rewrite.
parent 0d8865bd
......@@ -13,11 +13,18 @@ config BT_HCIUSB
Say Y here to compile support for Bluetooth USB devices into the
kernel or say M to compile it as module (hci_usb).
config BT_USB_SCO
bool "SCO over HCI USB support"
depends on BT_HCIUSB
help
This option enables the SCO support in the HCI USB driver. You need this
to transmit voice data with your Bluetooth USB device.
Say Y here to compile support for SCO over HCI USB.
config BT_USB_ZERO_PACKET
bool "USB zero packet support"
depends on BT_HCIUSB
help
Support for USB zero packets.
This option is provided only as a work around for buggy Bluetooth USB
devices. Do _not_ enable it unless you know for sure that your device
requires zero packets.
......
This diff is collapsed.
/*
BlueZ - Bluetooth protocol stack for Linux
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;
......@@ -40,40 +41,96 @@
#define HCI_MAX_BULK_TX 4
#define HCI_MAX_BULK_RX 1
#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;
};
struct _urb *_urb_alloc(int isoc, int gfp);
static inline void _urb_free(struct _urb *_urb)
{
kfree(_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);
list_add(&_urb->list, &q->head); _urb->queue = q;
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);
list_add_tail(&_urb->list, &q->head); _urb->queue = q;
spin_unlock_irqrestore(&q->lock, flags);
}
static inline void _urb_unlink(struct _urb *_urb)
{
struct _urb_queue *q = _urb->queue;
unsigned long flags;
if (q) {
spin_lock_irqsave(&q->lock, flags);
list_del(&_urb->list); _urb->queue = NULL;
spin_unlock_irqrestore(&q->lock, flags);
}
}
struct _urb *_urb_dequeue(struct _urb_queue *q);
#ifndef container_of
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
#endif
struct hci_usb {
struct hci_dev hdev;
unsigned long state;
struct usb_device *udev;
struct usb_interface *isoc_iface;
__u8 bulk_out_ep;
__u8 bulk_in_ep;
__u8 isoc_out_ep;
__u8 isoc_in_ep;
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 intr_ep;
__u8 intr_interval;
struct urb *intr_urb;
struct sk_buff *intr_skb;
struct sk_buff_head transmit_q[4];
struct sk_buff *reassembly[4]; // Reassembly buffers
rwlock_t completion_lock;
struct sk_buff_head cmd_q; // TX Commands
struct sk_buff_head acl_q; // TX ACLs
struct sk_buff_head pending_q; // Pending requests
struct sk_buff_head completed_q; // Completed requests
};
struct hci_usb_scb {
struct urb *urb;
int intr_len;
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
#define HCI_USB_CTRL_TX 3
#endif /* __KERNEL__ */
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