1/*
2 *
3 *  Bluetooth HCI UART driver
4 *
5 *  Copyright (C) 2000-2001  Qualcomm Incorporated
6 *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
7 *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
8 *
9 *
10 *  This program is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License as published by
12 *  the Free Software Foundation; either version 2 of the License, or
13 *  (at your option) any later version.
14 *
15 *  This program is distributed in the hope that it will be useful,
16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 *  GNU General Public License for more details.
19 *
20 *  You should have received a copy of the GNU General Public License
21 *  along with this program; if not, write to the Free Software
22 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23 *
24 */
25
26#ifndef N_HCI
27#define N_HCI	15
28#endif
29
30/* Ioctls */
31#define HCIUARTSETPROTO		_IOW('U', 200, int)
32#define HCIUARTGETPROTO		_IOR('U', 201, int)
33#define HCIUARTGETDEVICE	_IOR('U', 202, int)
34
35/* UART protocols */
36#define HCI_UART_MAX_PROTO	4
37
38#define HCI_UART_H4	0
39#define HCI_UART_BCSP	1
40#define HCI_UART_3WIRE	2
41#define HCI_UART_H4DS	3
42
43struct hci_uart;
44
45struct hci_uart_proto {
46	unsigned int id;
47	int (*open)(struct hci_uart *hu);
48	int (*close)(struct hci_uart *hu);
49	int (*flush)(struct hci_uart *hu);
50	int (*recv)(struct hci_uart *hu, void *data, int len);
51	int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
52	struct sk_buff *(*dequeue)(struct hci_uart *hu);
53};
54
55struct hci_uart {
56	struct tty_struct	*tty;
57	struct hci_dev		*hdev;
58	unsigned long		flags;
59
60	struct hci_uart_proto	*proto;
61	void			*priv;
62
63	struct sk_buff		*tx_skb;
64	unsigned long		tx_state;
65	spinlock_t		rx_lock;
66};
67
68/* HCI_UART flag bits */
69#define HCI_UART_PROTO_SET	0
70
71/* TX states  */
72#define HCI_UART_SENDING	1
73#define HCI_UART_TX_WAKEUP	2
74
75int hci_uart_register_proto(struct hci_uart_proto *p);
76int hci_uart_unregister_proto(struct hci_uart_proto *p);
77int hci_uart_tx_wakeup(struct hci_uart *hu);
78
79#ifdef CONFIG_BT_HCIUART_H4
80int h4_init(void);
81int h4_deinit(void);
82#endif
83
84#ifdef CONFIG_BT_HCIUART_BCSP
85int bcsp_init(void);
86int bcsp_deinit(void);
87#endif
88