tjh.dev
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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
52struct hci_uart;
53
54struct hci_uart_proto {
55 unsigned int id;
56 int (*open)(struct hci_uart *hu);
57 int (*close)(struct hci_uart *hu);
58 int (*flush)(struct hci_uart *hu);
59 int (*recv)(struct hci_uart *hu, void *data, int len);
60 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
61 struct sk_buff *(*dequeue)(struct hci_uart *hu);
62};
63
64struct hci_uart {
65 struct tty_struct *tty;
66 struct hci_dev *hdev;
67 unsigned long flags;
68 unsigned long hdev_flags;
69
70 struct work_struct init_ready;
71
72 struct hci_uart_proto *proto;
73 void *priv;
74
75 struct sk_buff *tx_skb;
76 unsigned long tx_state;
77 spinlock_t rx_lock;
78};
79
80/* HCI_UART proto flag bits */
81#define HCI_UART_PROTO_SET 0
82#define HCI_UART_REGISTERED 1
83
84/* TX states */
85#define HCI_UART_SENDING 1
86#define HCI_UART_TX_WAKEUP 2
87
88int hci_uart_register_proto(struct hci_uart_proto *p);
89int hci_uart_unregister_proto(struct hci_uart_proto *p);
90int hci_uart_tx_wakeup(struct hci_uart *hu);
91int hci_uart_init_ready(struct hci_uart *hu);
92
93#ifdef CONFIG_BT_HCIUART_H4
94int h4_init(void);
95int h4_deinit(void);
96#endif
97
98#ifdef CONFIG_BT_HCIUART_BCSP
99int bcsp_init(void);
100int bcsp_deinit(void);
101#endif
102
103#ifdef CONFIG_BT_HCIUART_LL
104int ll_init(void);
105int ll_deinit(void);
106#endif
107
108#ifdef CONFIG_BT_HCIUART_ATH3K
109int ath_init(void);
110int ath_deinit(void);
111#endif
112
113#ifdef CONFIG_BT_HCIUART_3WIRE
114int h5_init(void);
115int h5_deinit(void);
116#endif