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#define HCIUARTSETFLAGS		_IOW('U', 203, int)
35#define HCIUARTGETFLAGS		_IOR('U', 204, int)
36
37/* UART protocols */
38#define HCI_UART_MAX_PROTO	6
39
40#define HCI_UART_H4	0
41#define HCI_UART_BCSP	1
42#define HCI_UART_3WIRE	2
43#define HCI_UART_H4DS	3
44#define HCI_UART_LL	4
45#define HCI_UART_ATH3K	5
46
47#define HCI_UART_RAW_DEVICE	0
48#define HCI_UART_RESET_ON_INIT	1
49#define HCI_UART_CREATE_AMP	2
50#define HCI_UART_INIT_PENDING	3
51#define HCI_UART_EXT_CONFIG	4
52
53struct hci_uart;
54
55struct hci_uart_proto {
56	unsigned int id;
57	int (*open)(struct hci_uart *hu);
58	int (*close)(struct hci_uart *hu);
59	int (*flush)(struct hci_uart *hu);
60	int (*recv)(struct hci_uart *hu, void *data, int len);
61	int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
62	struct sk_buff *(*dequeue)(struct hci_uart *hu);
63};
64
65struct hci_uart {
66	struct tty_struct	*tty;
67	struct hci_dev		*hdev;
68	unsigned long		flags;
69	unsigned long		hdev_flags;
70
71	struct work_struct	init_ready;
72	struct work_struct	write_work;
73
74	struct hci_uart_proto	*proto;
75	void			*priv;
76
77	struct sk_buff		*tx_skb;
78	unsigned long		tx_state;
79	spinlock_t		rx_lock;
80};
81
82/* HCI_UART proto flag bits */
83#define HCI_UART_PROTO_SET	0
84#define HCI_UART_REGISTERED	1
85
86/* TX states  */
87#define HCI_UART_SENDING	1
88#define HCI_UART_TX_WAKEUP	2
89
90int hci_uart_register_proto(struct hci_uart_proto *p);
91int hci_uart_unregister_proto(struct hci_uart_proto *p);
92int hci_uart_tx_wakeup(struct hci_uart *hu);
93int hci_uart_init_ready(struct hci_uart *hu);
94
95#ifdef CONFIG_BT_HCIUART_H4
96int h4_init(void);
97int h4_deinit(void);
98#endif
99
100#ifdef CONFIG_BT_HCIUART_BCSP
101int bcsp_init(void);
102int bcsp_deinit(void);
103#endif
104
105#ifdef CONFIG_BT_HCIUART_LL
106int ll_init(void);
107int ll_deinit(void);
108#endif
109
110#ifdef CONFIG_BT_HCIUART_ATH3K
111int ath_init(void);
112int ath_deinit(void);
113#endif
114
115#ifdef CONFIG_BT_HCIUART_3WIRE
116int h5_init(void);
117int h5_deinit(void);
118#endif
119