Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux...
[wrt350n-kernel.git] / drivers / isdn / hardware / eicon / diddfunc.c
blob3029234178d8e772ccd07a42e0c4e1210f61646a
1 /* $Id: diddfunc.c,v 1.14.6.2 2004/08/28 20:03:53 armin Exp $
3 * DIDD Interface module for Eicon active cards.
4 *
5 * Functions are in dadapter.c
6 *
7 * Copyright 2002-2003 by Armin Schindler (mac@melware.de)
8 * Copyright 2002-2003 Cytronics & Melware (info@melware.de)
9 *
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
14 #include "platform.h"
15 #include "di_defs.h"
16 #include "dadapter.h"
17 #include "divasync.h"
19 #define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
20 #define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
23 extern void DIVA_DIDD_Read(void *, int);
24 extern char *DRIVERRELEASE_DIDD;
25 static dword notify_handle;
26 static DESCRIPTOR _DAdapter;
29 * didd callback function
31 static void *didd_callback(void *context, DESCRIPTOR * adapter,
32 int removal)
34 if (adapter->type == IDI_DADAPTER) {
35 DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."))
36 return (NULL);
37 } else if (adapter->type == IDI_DIMAINT) {
38 if (removal) {
39 DbgDeregister();
40 } else {
41 DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
44 return (NULL);
48 * connect to didd
50 static int DIVA_INIT_FUNCTION connect_didd(void)
52 int x = 0;
53 int dadapter = 0;
54 IDI_SYNC_REQ req;
55 DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
57 DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
59 for (x = 0; x < MAX_DESCRIPTORS; x++) {
60 if (DIDD_Table[x].type == IDI_DADAPTER) { /* DADAPTER found */
61 dadapter = 1;
62 memcpy(&_DAdapter, &DIDD_Table[x], sizeof(_DAdapter));
63 req.didd_notify.e.Req = 0;
64 req.didd_notify.e.Rc =
65 IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
66 req.didd_notify.info.callback = (void *)didd_callback;
67 req.didd_notify.info.context = NULL;
68 _DAdapter.request((ENTITY *) & req);
69 if (req.didd_notify.e.Rc != 0xff)
70 return (0);
71 notify_handle = req.didd_notify.info.handle;
72 } else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */
73 DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
76 return (dadapter);
80 * disconnect from didd
82 static void DIVA_EXIT_FUNCTION disconnect_didd(void)
84 IDI_SYNC_REQ req;
86 req.didd_notify.e.Req = 0;
87 req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
88 req.didd_notify.info.handle = notify_handle;
89 _DAdapter.request((ENTITY *) & req);
93 * init
95 int DIVA_INIT_FUNCTION diddfunc_init(void)
97 diva_didd_load_time_init();
99 if (!connect_didd()) {
100 DBG_ERR(("init: failed to connect to DIDD."))
101 diva_didd_load_time_finit();
102 return (0);
104 return (1);
108 * finit
110 void DIVA_EXIT_FUNCTION diddfunc_finit(void)
112 DbgDeregister();
113 disconnect_didd();
114 diva_didd_load_time_finit();