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
266
267
|
/* $Id: idifunc.c,v 1.14.4.4 2004/08/28 20:03:53 armin Exp $
*
* Driver for Eicon DIVA Server ISDN cards.
* User Mode IDI Interface
*
* Copyright 2000-2003 by Armin Schindler (mac@melware.de)
* Copyright 2000-2003 Cytronics & Melware (info@melware.de)
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*/
#include "platform.h"
#include "di_defs.h"
#include "divasync.h"
#include "um_xdi.h"
#include "um_idi.h"
#define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
#define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
extern char *DRIVERRELEASE_IDI;
extern void DIVA_DIDD_Read(void *, int);
extern int diva_user_mode_idi_create_adapter(const DESCRIPTOR *, int);
extern void diva_user_mode_idi_remove_adapter(int);
static dword notify_handle;
static DESCRIPTOR DAdapter;
static DESCRIPTOR MAdapter;
static void no_printf(unsigned char *x, ...)
{
/* dummy debug function */
}
#include "debuglib.c"
/*
* stop debug
*/
static void stop_dbg(void)
{
DbgDeregister();
memset(&MAdapter, 0, sizeof(MAdapter));
dprintf = no_printf;
}
typedef struct _udiva_card {
struct list_head list;
int Id;
DESCRIPTOR d;
} udiva_card;
static LIST_HEAD(cards);
static diva_os_spin_lock_t ll_lock;
/*
* find card in list
*/
static udiva_card *find_card_in_list(DESCRIPTOR * d)
{
udiva_card *card;
struct list_head *tmp;
diva_os_spin_lock_magic_t old_irql;
diva_os_enter_spin_lock(&ll_lock, &old_irql, "find card");
list_for_each(tmp, &cards) {
card = list_entry(tmp, udiva_card, list);
if (card->d.request == d->request) {
diva_os_leave_spin_lock(&ll_lock, &old_irql,
"find card");
return (card);
}
}
diva_os_leave_spin_lock(&ll_lock, &old_irql, "find card");
return ((udiva_card *) NULL);
}
/*
* new card
*/
static void um_new_card(DESCRIPTOR * d)
{
int adapter_nr = 0;
udiva_card *card = NULL;
IDI_SYNC_REQ sync_req;
diva_os_spin_lock_magic_t old_irql;
if (!(card = diva_os_malloc(0, sizeof(udiva_card)))) {
DBG_ERR(("cannot get buffer for card"));
return;
}
memcpy(&card->d, d, sizeof(DESCRIPTOR));
sync_req.xdi_logical_adapter_number.Req = 0;
sync_req.xdi_logical_adapter_number.Rc =
IDI_SYNC_REQ_XDI_GET_LOGICAL_ADAPTER_NUMBER;
card->d.request((ENTITY *) & sync_req);
adapter_nr =
sync_req.xdi_logical_adapter_number.info.logical_adapter_number;
card->Id = adapter_nr;
if (!(diva_user_mode_idi_create_adapter(d, adapter_nr))) {
diva_os_enter_spin_lock(&ll_lock, &old_irql, "add card");
list_add_tail(&card->list, &cards);
diva_os_leave_spin_lock(&ll_lock, &old_irql, "add card");
} else {
DBG_ERR(("could not create user mode idi card %d",
adapter_nr));
}
}
/*
* remove card
*/
static void um_remove_card(DESCRIPTOR * d)
{
diva_os_spin_lock_magic_t old_irql;
udiva_card *card = NULL;
if (!(card = find_card_in_list(d))) {
DBG_ERR(("cannot find card to remove"));
return;
}
diva_user_mode_idi_remove_adapter(card->Id);
diva_os_enter_spin_lock(&ll_lock, &old_irql, "remove card");
list_del(&card->list);
diva_os_leave_spin_lock(&ll_lock, &old_irql, "remove card");
DBG_LOG(("idi proc entry removed for card %d", card->Id));
diva_os_free(0, card);
}
/*
* remove all adapter
*/
static void DIVA_EXIT_FUNCTION remove_all_idi_proc(void)
{
udiva_card *card;
diva_os_spin_lock_magic_t old_irql;
rescan:
diva_os_enter_spin_lock(&ll_lock, &old_irql, "remove all");
if (!list_empty(&cards)) {
card = list_entry(cards.next, udiva_card, list);
list_del(&card->list);
diva_os_leave_spin_lock(&ll_lock, &old_irql, "remove all");
diva_user_mode_idi_remove_adapter(card->Id);
diva_os_free(0, card);
goto rescan;
}
diva_os_leave_spin_lock(&ll_lock, &old_irql, "remove all");
}
/*
* DIDD notify callback
*/
static void *didd_callback(void *context, DESCRIPTOR * adapter,
int removal)
{
if (adapter->type == IDI_DADAPTER) {
DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."));
return (NULL);
} else if (adapter->type == IDI_DIMAINT) {
if (removal) {
stop_dbg();
} else {
memcpy(&MAdapter, adapter, sizeof(MAdapter));
dprintf = (DIVA_DI_PRINTF) MAdapter.request;
DbgRegister("User IDI", DRIVERRELEASE_IDI, DBG_DEFAULT);
}
} else if ((adapter->type > 0) && (adapter->type < 16)) { /* IDI Adapter */
if (removal) {
um_remove_card(adapter);
} else {
um_new_card(adapter);
}
}
return (NULL);
}
/*
* connect DIDD
*/
static int DIVA_INIT_FUNCTION connect_didd(void)
{
int x = 0;
int dadapter = 0;
IDI_SYNC_REQ req;
DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
for (x = 0; x < MAX_DESCRIPTORS; x++) {
if (DIDD_Table[x].type == IDI_DADAPTER) { /* DADAPTER found */
dadapter = 1;
memcpy(&DAdapter, &DIDD_Table[x], sizeof(DAdapter));
req.didd_notify.e.Req = 0;
req.didd_notify.e.Rc =
IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
req.didd_notify.info.callback = (void *)didd_callback;
req.didd_notify.info.context = NULL;
DAdapter.request((ENTITY *) & req);
if (req.didd_notify.e.Rc != 0xff) {
stop_dbg();
return (0);
}
notify_handle = req.didd_notify.info.handle;
} else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */
memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
dprintf = (DIVA_DI_PRINTF) MAdapter.request;
DbgRegister("User IDI", DRIVERRELEASE_IDI, DBG_DEFAULT);
} else if ((DIDD_Table[x].type > 0)
&& (DIDD_Table[x].type < 16)) { /* IDI Adapter found */
um_new_card(&DIDD_Table[x]);
}
}
if (!dadapter) {
stop_dbg();
}
return (dadapter);
}
/*
* Disconnect from DIDD
*/
static void DIVA_EXIT_FUNCTION disconnect_didd(void)
{
IDI_SYNC_REQ req;
stop_dbg();
req.didd_notify.e.Req = 0;
req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
req.didd_notify.info.handle = notify_handle;
DAdapter.request((ENTITY *) & req);
}
/*
* init
*/
int DIVA_INIT_FUNCTION idifunc_init(void)
{
diva_os_initialize_spin_lock(&ll_lock, "idifunc");
if (diva_user_mode_idi_init()) {
DBG_ERR(("init: init failed."));
return (0);
}
if (!connect_didd()) {
diva_user_mode_idi_finit();
DBG_ERR(("init: failed to connect to DIDD."));
return (0);
}
return (1);
}
/*
* finit
*/
void DIVA_EXIT_FUNCTION idifunc_finit(void)
{
diva_user_mode_idi_finit();
disconnect_didd();
remove_all_idi_proc();
}
|
