1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Shared Transport Header file
* To be included by the protocol stack drivers for
* Texas Instruments BT,FM and GPS combo chip drivers
*
* Copyright (C) 2009 Texas Instruments
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef ST_H
#define ST_H
#include <linux/skbuff.h>
/* TODO:
* Move the following to tty.h upon acceptance
*/
#define N_TI_WL 20 /* Ldisc for TI's WL BT, FM, GPS combo chips */
/**
* enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW
* gpio states for their chip/core enable gpios
*/
enum kim_gpio_state {
KIM_GPIO_INACTIVE,
KIM_GPIO_ACTIVE,
};
/**
* enum proto-type - The protocol on WiLink chips which share a
* common physical interface like UART.
*/
enum proto_type {
ST_BT,
ST_FM,
ST_GPS,
ST_MAX,
};
/**
* struct st_proto_s - Per Protocol structure from BT/FM/GPS to ST
* @type: type of the protocol being registered among the
* available proto_type(BT, FM, GPS the protocol which share TTY).
* @recv: the receiver callback pointing to a function in the
* protocol drivers called by the ST driver upon receiving
* relevant data.
* @match_packet: reserved for future use, to make ST more generic
* @reg_complete_cb: callback handler pointing to a function in protocol
* handler called by ST when the pending registrations are complete.
* The registrations are marked pending, in situations when fw
* download is in progress.
* @write: pointer to function in ST provided to protocol drivers from ST,
* to be made use when protocol drivers have data to send to TTY.
* @priv_data: privdate data holder for the protocol drivers, sent
* from the protocol drivers during registration, and sent back on
* reg_complete_cb and recv.
*/
struct st_proto_s {
enum proto_type type;
long (*recv) (void *, struct sk_buff *);
unsigned char (*match_packet) (const unsigned char *data);
void (*reg_complete_cb) (void *, char data);
long (*write) (struct sk_buff *skb);
void *priv_data;
};
extern long st_register(struct st_proto_s *);
extern long st_unregister(enum proto_type);
#endif /* ST_H */
|
