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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/*********************************************************************
*
* Filename: irmod.h
* Version: 0.3
* Description: IrDA module and utilities functions
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Mon Dec 15 13:58:52 1997
* Modified at: Tue Jan 12 14:56:11 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998 Dag Brattli, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* Neither Dag Brattli nor University of Tromsø admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charg.
*
********************************************************************/
#ifndef IRMOD_H
#define IRMOD_H
#include <linux/skbuff.h>
#include <linux/miscdevice.h>
#include <net/irda/irqueue.h>
#include <net/irda/qos.h>
#define IRMGR_IOC_MAGIC 'm'
#define IRMGR_IOCTNPC _IO(IRMGR_IOC_MAGIC, 1)
#define IRMGR_IOC_MAXNR 1
/*
* Events that we pass to the user space manager
*/
typedef enum {
EVENT_DEVICE_DISCOVERED = 0,
EVENT_REQUEST_MODULE,
EVENT_IRLAN_START,
EVENT_IRLAN_STOP,
EVENT_IRLPT_START,
EVENT_IRLPT_STOP,
EVENT_IROBEX_START,
EVENT_IROBEX_STOP,
EVENT_IRDA_STOP,
EVENT_NEED_PROCESS_CONTEXT,
} IRMGR_EVENT;
/*
* Event information passed to the IrManager daemon process
*/
struct irmanager_event {
IRMGR_EVENT event;
char devname[10];
char info[32];
int service;
__u32 saddr;
__u32 daddr;
};
typedef void (*TODO_CALLBACK)( void *self, __u32 param);
/*
* Same as irmanager_event but this one can be queued and inclueds some
* addtional information
*/
struct irda_event {
QUEUE q; /* Must be first */
struct irmanager_event event;
};
/*
* Funtions with needs to be called with a process context
*/
struct irda_todo {
QUEUE q; /* Must be first */
void *self;
TODO_CALLBACK callback;
__u32 param;
};
/*
* Main structure for the IrDA device (not much here :-)
*/
struct irda_cb {
struct miscdevice dev;
struct wait_queue *wait_queue;
int in_use;
QUEUE *event_queue; /* Events queued for the irmanager */
QUEUE *todo_queue; /* Todo list */
};
typedef struct {
char irda_call[7]; /* 6 call + SSID (shifted ascii!) */
} irda_address;
struct sockaddr_irda {
short sirda_family;
irda_address sirda_call;
int sirda_ndigis;
};
/*
* This type is used by the protocols that transmit 16 bits words in
* little endian format. A little endian machine stores MSB of word in
* byte[1] and LSB in byte[0]. A big endian machine stores MSB in byte[0]
* and LSB in byte[1].
*/
typedef union {
__u16 word;
__u8 byte[2];
} __u16_host_order;
/*
* Information monitored by some layers
*/
struct irda_statistics
{
int rx_packets; /* total packets received */
int tx_packets; /* total packets transmitted */
int rx_errors; /* bad packets received */
int tx_errors; /* packet transmit problems */
int rx_dropped; /* no space in linux buffers */
int tx_dropped; /* no space available in linux */
int rx_compressed;
int tx_compressed;
int rx_bytes; /* total bytes received */
int tx_bytes; /* total bytes transmitted */
int multicast; /* multicast packets received */
int collisions;
/* detailed rx_errors: */
int rx_length_errors;
int rx_over_errors; /* receiver ring buff overflow */
int rx_crc_errors; /* recved pkt with crc error */
int rx_frame_errors; /* recv'd frame alignment error */
int rx_fifo_errors; /* recv'r fifo overrun */
int rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
int tx_aborted_errors;
int tx_carrier_errors;
int tx_fifo_errors;
int tx_heartbeat_errors;
int tx_window_errors;
};
typedef enum {
NO_CHANGE,
LOCKED,
UNLOCKED,
} LOCK_STATUS;
/* Misc status information */
typedef enum {
STATUS_OK,
STATUS_ABORTED,
STATUS_NO_ACTIVITY,
STATUS_NOISY,
STATUS_REMOTE,
} LINK_STATUS;
typedef enum { /* FIXME check the two first reason codes */
LAP_DISC_INDICATION=1, /* Received a disconnect request from peer */
LAP_NO_RESPONSE, /* To many retransmits without response */
LAP_RESET_INDICATION, /* To many retransmits, or invalid nr/ns */
LAP_FOUND_NONE, /* No devices were discovered */
LAP_MEDIA_BUSY,
LAP_PRIMARY_CONFLICT,
} LAP_REASON;
/*
* IrLMP disconnect reasons. The order is very important, since they
* correspond to disconnect reasons sent in IrLMP disconnect frames, so
* please do not touch :-)
*/
typedef enum {
LM_USER_REQUEST = 1, /* User request */
LM_LAP_DISCONNECT, /* Unexpected IrLAP disconnect */
LM_CONNECT_FAILURE, /* Failed to establish IrLAP connection */
LM_LAP_RESET, /* IrLAP reset */
LM_INIT_DISCONNECT, /* Link Management initiated disconnect */
} LM_REASON; /* FIXME: Just for now */
/*
* IrLMP character code values
*/
#define CS_ASCII 0x00
#define CS_ISO_8859_1 0x01
#define CS_ISO_8859_2 0x02
#define CS_ISO_8859_3 0x03
#define CS_ISO_8859_4 0x04
#define CS_ISO_8859_5 0x05
#define CS_ISO_8859_6 0x06
#define CS_ISO_8859_7 0x07
#define CS_ISO_8859_8 0x08
#define CS_ISO_8859_9 0x09
#define CS_UNICODE 0xff
/*
* The DISCOVERY structure is used for both discovery requests and responses
*/
#define DISCOVERY struct discovery_t
struct discovery_t {
QUEUE queue; /* Must be first! */
__u32 saddr; /* Which link the device was discovered */
__u32 daddr; /* Remote device address */
LAP_REASON condition; /* More info about the discovery */
__u8 hint[2]; /* Discovery hint bits */
__u8 charset;
char info[32]; /* Usually the name of the device */
__u8 info_len; /* Length of device info field */
int gen_addr_bit; /* Need to generate a new device address? */
};
typedef enum { FLOW_STOP, FLOW_START } LOCAL_FLOW;
/*
* Notify structure used between transport and link management layers
*/
struct notify_t {
void (*data_indication)( void *instance, void *sap,
struct sk_buff *skb);
void (*udata_indication)( void *instance, void *sap,
struct sk_buff *skb);
void (*connect_confirm)( void *instance, void *sap,
struct qos_info *qos, int max_sdu_size,
struct sk_buff *skb);
void (*connect_indication)( void *instance, void *sap,
struct qos_info *qos, int max_sdu_size,
struct sk_buff *skb);
void (*disconnect_indication)( void *instance, void *sap,
LM_REASON reason, struct sk_buff *);
void (*flow_indication)( void *instance, void *sap, LOCAL_FLOW flow);
void *instance; /* Layer instance pointer */
char name[16]; /* Name of layer */
};
#define NOTIFY_MAX_NAME 16
int irmod_init_module(void);
void irmod_cleanup_module(void);
inline int irda_lock( int *lock);
inline int irda_unlock( int *lock);
void irda_notify_init( struct notify_t *notify);
void irda_execute_as_process( void *self, TODO_CALLBACK callback, __u32 param);
void irmanager_notify( struct irmanager_event *event);
#endif
|