projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* $Id: diddfunc.c,v 1.14.6.2 2004/08/28 20:03:53 armin Exp $ |
| 2 | * | |
| 3 | * DIDD Interface module for Eicon active cards. | |
| 475be4d8 JP |
4 | * |
| 5 | * Functions are in dadapter.c | |
| 6 | * | |
| 7 | * Copyright 2002-2003 by Armin Schindler (mac@melware.de) | |
| 1da177e4 | 8 | * Copyright 2002-2003 Cytronics & Melware (info@melware.de) |
| 475be4d8 | 9 | * |
| 1da177e4 LT |
10 | * This software may be used and distributed according to the terms |
| 11 | * of the GNU General Public License, incorporated herein by reference. | |
| 12 | */ | |
| 13 | ||
| 14 | #include "platform.h" | |
| 15 | #include "di_defs.h" | |
| 16 | #include "dadapter.h" | |
| 17 | #include "divasync.h" | |
| 18 | ||
| 19 | #define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR) | |
| 20 | #define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG) | |
| 21 | ||
| 22 | ||
| 23 | extern void DIVA_DIDD_Read(void *, int); | |
| 24 | extern char *DRIVERRELEASE_DIDD; | |
| 25 | static dword notify_handle; | |
| 26 | static DESCRIPTOR _DAdapter; | |
| 27 | ||
| 28 | /* | |
| 29 | * didd callback function | |
| 30 | */ | |
| 475be4d8 | 31 | static void *didd_callback(void *context, DESCRIPTOR *adapter, |
| 1da177e4 LT |
32 | int removal) |
| 33 | { | |
| 34 | if (adapter->type == IDI_DADAPTER) { | |
| 35 | DBG_ERR(("Notification about IDI_DADAPTER change ! Oops.")) | |
| 475be4d8 | 36 | return (NULL); |
| 1da177e4 LT |
37 | } else if (adapter->type == IDI_DIMAINT) { |
| 38 | if (removal) { | |
| 39 | DbgDeregister(); | |
| 40 | } else { | |
| 41 | DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT); | |
| 42 | } | |
| 43 | } | |
| 44 | return (NULL); | |
| 45 | } | |
| 46 | ||
| 47 | /* | |
| 48 | * connect to didd | |
| 49 | */ | |
| d7398892 | 50 | static int __init connect_didd(void) |
| 1da177e4 LT |
51 | { |
| 52 | int x = 0; | |
| 53 | int dadapter = 0; | |
| 54 | IDI_SYNC_REQ req; | |
| 55 | DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; | |
| 56 | ||
| 57 | DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); | |
| 58 | ||
| 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 = | |
| 475be4d8 | 65 | IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY; |
| 1da177e4 LT |
66 | req.didd_notify.info.callback = (void *)didd_callback; |
| 67 | req.didd_notify.info.context = NULL; | |
| 475be4d8 | 68 | _DAdapter.request((ENTITY *)&req); |
| 1da177e4 LT |
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); | |
| 74 | } | |
| 75 | } | |
| 76 | return (dadapter); | |
| 77 | } | |
| 78 | ||
| 79 | /* | |
| 80 | * disconnect from didd | |
| 81 | */ | |
| d7398892 | 82 | static void __exit disconnect_didd(void) |
| 1da177e4 LT |
83 | { |
| 84 | IDI_SYNC_REQ req; | |
| 85 | ||
| 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; | |
| 475be4d8 | 89 | _DAdapter.request((ENTITY *)&req); |
| 1da177e4 LT |
90 | } |
| 91 | ||
| 92 | /* | |
| 93 | * init | |
| 94 | */ | |
| d7398892 | 95 | int __init diddfunc_init(void) |
| 1da177e4 LT |
96 | { |
| 97 | diva_didd_load_time_init(); | |
| 98 | ||
| 99 | if (!connect_didd()) { | |
| 100 | DBG_ERR(("init: failed to connect to DIDD.")) | |
| 475be4d8 | 101 | diva_didd_load_time_finit(); |
| 1da177e4 LT |
102 | return (0); |
| 103 | } | |
| 104 | return (1); | |
| 105 | } | |
| 106 | ||
| 107 | /* | |
| 108 | * finit | |
| 109 | */ | |
| d7398892 | 110 | void __exit diddfunc_finit(void) |
| 1da177e4 LT |
111 | { |
| 112 | DbgDeregister(); | |
| 113 | disconnect_didd(); | |
| 114 | diva_didd_load_time_finit(); | |
| 115 | } |