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
34 /* UART protocols */
35 #define HCI_UART_MAX_PROTO 4
36
37 #define HCI_UART_H4 0
38 #define HCI_UART_BCSP 1
39 #define HCI_UART_3WIRE 2
40 #define HCI_UART_H4DS 3
41
42 struct hci_uart;
43
44 struct hci_uart_proto {
45 unsigned int id;
46 int (*open)(struct hci_uart *hu);
47 int (*close)(struct hci_uart *hu);
48 int (*flush)(struct hci_uart *hu);
49 int (*recv)(struct hci_uart *hu, void *data, int len);
50 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
51 struct sk_buff *(*dequeue)(struct hci_uart *hu);
52 };
53
54 struct hci_uart {
55 struct tty_struct *tty;
56 struct hci_dev *hdev;
57 unsigned long flags;
58
59 struct hci_uart_proto *proto;
60 void *priv;
61
62 struct sk_buff *tx_skb;
63 unsigned long tx_state;
64 spinlock_t rx_lock;
65 };
66
67 /* HCI_UART flag bits */
68 #define HCI_UART_PROTO_SET 0
69
70 /* TX states */
71 #define HCI_UART_SENDING 1
72 #define HCI_UART_TX_WAKEUP 2
73
74 int hci_uart_register_proto(struct hci_uart_proto *p);
75 int hci_uart_unregister_proto(struct hci_uart_proto *p);
76 int hci_uart_tx_wakeup(struct hci_uart *hu);
77
78 #ifdef CONFIG_BT_HCIUART_H4
79 int h4_init(void);
80 int h4_deinit(void);
81 #endif
82
83 #ifdef CONFIG_BT_HCIUART_BCSP
84 int bcsp_init(void);
85 int bcsp_deinit(void);
86 #endif
87
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