blob: 1097ce72393f2813bc82d140df1cca0495124b30 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Marcel Holtmann0372a662005-10-28 19:20:45 +02002 *
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 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 */
25
Marcel Holtmann0372a662005-10-28 19:20:45 +020026#ifndef N_HCI
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#define N_HCI 15
28#endif
29
30/* Ioctls */
Marcel Holtmannd2158742007-05-09 09:15:35 +020031#define HCIUARTSETPROTO _IOW('U', 200, int)
32#define HCIUARTGETPROTO _IOR('U', 201, int)
33#define HCIUARTGETDEVICE _IOR('U', 202, int)
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070043struct 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 {
Marcel Holtmann0372a662005-10-28 19:20:45 +020056 struct tty_struct *tty;
57 struct hci_dev *hdev;
58 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
Marcel Holtmann0372a662005-10-28 19:20:45 +020060 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -070066};
67
68/* HCI_UART flag bits */
Marcel Holtmann0372a662005-10-28 19:20:45 +020069#define HCI_UART_PROTO_SET 0
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
71/* TX states */
Marcel Holtmann0372a662005-10-28 19:20:45 +020072#define HCI_UART_SENDING 1
73#define HCI_UART_TX_WAKEUP 2
Linus Torvalds1da177e2005-04-16 15:20:36 -070074
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
Marcel Holtmann0372a662005-10-28 19:20:45 +020079#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