Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/drivers/bluetooth/hci_uart.h
15109 views
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


49
struct hci_uart;

50


51
struct hci_uart_proto {

52
	unsigned int id;

53
	int (*open)(struct hci_uart *hu);

54
	int (*close)(struct hci_uart *hu);

55
	int (*flush)(struct hci_uart *hu);

56
	int (*recv)(struct hci_uart *hu, void *data, int len);

57
	int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);

58
	struct sk_buff *(*dequeue)(struct hci_uart *hu);

59
};

60


61
struct hci_uart {

62
	struct tty_struct	*tty;

63
	struct hci_dev		*hdev;

64
	unsigned long		flags;

65
	unsigned long		hdev_flags;

66


67
	struct hci_uart_proto	*proto;

68
	void			*priv;

69


70
	struct sk_buff		*tx_skb;

71
	unsigned long		tx_state;

72
	spinlock_t		rx_lock;

73
};

74


75
/* HCI_UART proto flag bits */

76
#define HCI_UART_PROTO_SET	0

77


78
/* TX states  */

79
#define HCI_UART_SENDING	1

80
#define HCI_UART_TX_WAKEUP	2

81


82
int hci_uart_register_proto(struct hci_uart_proto *p);

83
int hci_uart_unregister_proto(struct hci_uart_proto *p);

84
int hci_uart_tx_wakeup(struct hci_uart *hu);

85


86
#ifdef CONFIG_BT_HCIUART_H4

87
int h4_init(void);

88
int h4_deinit(void);

89
#endif

90


91
#ifdef CONFIG_BT_HCIUART_BCSP

92
int bcsp_init(void);

93
int bcsp_deinit(void);

94
#endif

95


96
#ifdef CONFIG_BT_HCIUART_LL

97
int ll_init(void);

98
int ll_deinit(void);

99
#endif

100


101
#ifdef CONFIG_BT_HCIUART_ATH3K

102
int ath_init(void);

103
int ath_deinit(void);

104
#endif

105


106