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hci_uart.h
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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 <[email protected]>
7  * Copyright (C) 2004-2005 Marcel Holtmann <[email protected]>
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 
52 struct hci_uart;
53 
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 
64 struct hci_uart {
65  struct tty_struct *tty;
66  struct hci_dev *hdev;
67  unsigned long flags;
68  unsigned long hdev_flags;
69 
71 
73  void *priv;
74 
75  struct sk_buff *tx_skb;
76  unsigned long tx_state;
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 
90 int hci_uart_tx_wakeup(struct hci_uart *hu);
91 int hci_uart_init_ready(struct hci_uart *hu);
92 
93 #ifdef CONFIG_BT_HCIUART_H4
94 int h4_init(void);
95 int h4_deinit(void);
96 #endif
97 
98 #ifdef CONFIG_BT_HCIUART_BCSP
99 int bcsp_init(void);
100 int bcsp_deinit(void);
101 #endif
102 
103 #ifdef CONFIG_BT_HCIUART_LL
104 int ll_init(void);
105 int ll_deinit(void);
106 #endif
107 
108 #ifdef CONFIG_BT_HCIUART_ATH3K
109 int ath_init(void);
110 int ath_deinit(void);
111 #endif
112 
113 #ifdef CONFIG_BT_HCIUART_3WIRE
114 int h5_init(void);
115 int h5_deinit(void);
116 #endif