git.oblomov.eu Git - linux-2.6/blob - drivers/isdn/hardware/eicon/divasfunc.c

   1 /* $Id: divasfunc.c,v 1.23.4.2 2004/08/28 20:03:53 armin Exp $
   2  *
   3  * Low level driver for Eicon DIVA Server ISDN cards.
   4  *
   5  * Copyright 2000-2003 by Armin Schindler (mac@melware.de)
   6  * Copyright 2000-2003 Cytronics & Melware (info@melware.de)
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  */
  11
  12 #include "platform.h"
  13 #include "di_defs.h"
  14 #include "pc.h"
  15 #include "di.h"
  16 #include "io.h"
  17 #include "divasync.h"
  18 #include "diva.h"
  19 #include "xdi_vers.h"
  20
  21 #define DBG_MINIMUM  (DL_LOG + DL_FTL + DL_ERR)
  22 #define DBG_DEFAULT  (DBG_MINIMUM + DL_XLOG + DL_REG)
  23
  24 static int debugmask;
  25
  26 extern void DIVA_DIDD_Read(void *, int);
  27
  28 extern PISDN_ADAPTER IoAdapters[MAX_ADAPTER];
  29
  30 extern char *DRIVERRELEASE_DIVAS;
  31
  32 static dword notify_handle;
  33 static DESCRIPTOR DAdapter;
  34 static DESCRIPTOR MAdapter;
  35
  36 /* --------------------------------------------------------------------------
  37     MAINT driver connector section
  38    -------------------------------------------------------------------------- */
  39 static void no_printf(unsigned char *x, ...)
  40 {
  41         /* dummy debug function */
  42 }
  43
  44 #include "debuglib.c"
  45
  46 /*
  47  * get the adapters serial number
  48  */
  49 void diva_get_vserial_number(PISDN_ADAPTER IoAdapter, char *buf)
  50 {
  51         int contr = 0;
  52
  53         if ((contr = ((IoAdapter->serialNo & 0xff000000) >> 24))) {
  54                 sprintf(buf, "%d-%d",
  55                         IoAdapter->serialNo & 0x00ffffff, contr + 1);
  56         } else {
  57                 sprintf(buf, "%d", IoAdapter->serialNo);
  58         }
  59 }
  60
  61 /*
  62  * register a new adapter
  63  */
  64 void diva_xdi_didd_register_adapter(int card)
  65 {
  66         DESCRIPTOR d;
  67         IDI_SYNC_REQ req;
  68
  69         if (card && ((card - 1) < MAX_ADAPTER) &&
  70             IoAdapters[card - 1] && Requests[card - 1]) {
  71                 d.type = IoAdapters[card - 1]->Properties.DescType;
  72                 d.request = Requests[card - 1];
  73                 d.channels = IoAdapters[card - 1]->Properties.Channels;
  74                 d.features = IoAdapters[card - 1]->Properties.Features;
  75                 DBG_TRC(("DIDD register A(%d) channels=%d", card,
  76                          d.channels))
  77                     /* workaround for different Name in structure */
  78                     strlcpy(IoAdapters[card - 1]->Name,
  79                             IoAdapters[card - 1]->Properties.Name,
  80                             sizeof(IoAdapters[card - 1]->Name));
  81                 req.didd_remove_adapter.e.Req = 0;
  82                 req.didd_add_adapter.e.Rc = IDI_SYNC_REQ_DIDD_ADD_ADAPTER;
  83                 req.didd_add_adapter.info.descriptor = (void *) &d;
  84                 DAdapter.request((ENTITY *) & req);
  85                 if (req.didd_add_adapter.e.Rc != 0xff) {
  86                         DBG_ERR(("DIDD register A(%d) failed !", card))
  87                 }
  88                 IoAdapters[card - 1]->os_trap_nfy_Fnc = NULL;
  89         }
  90 }
  91
  92 /*
  93  * remove an adapter
  94  */
  95 void diva_xdi_didd_remove_adapter(int card)
  96 {
  97         IDI_SYNC_REQ req;
  98         ADAPTER *a = &IoAdapters[card - 1]->a;
  99
 100         IoAdapters[card - 1]->os_trap_nfy_Fnc = NULL;
 101         DBG_TRC(("DIDD de-register A(%d)", card))
 102         req.didd_remove_adapter.e.Req = 0;
 103         req.didd_remove_adapter.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER;
 104         req.didd_remove_adapter.info.p_request =
 105             (IDI_CALL) Requests[card - 1];
 106         DAdapter.request((ENTITY *) & req);
 107         memset(&(a->IdTable), 0x00, 256);
 108 }
 109
 110 /*
 111  * start debug
 112  */
 113 static void start_dbg(void)
 114 {
 115         DbgRegister("DIVAS", DRIVERRELEASE_DIVAS, (debugmask) ? debugmask : DBG_DEFAULT);
 116         DBG_LOG(("DIVA ISDNXDI BUILD (%s[%s]-%s-%s)",
 117                  DIVA_BUILD, diva_xdi_common_code_build, __DATE__,
 118                  __TIME__))
 119 }
 120
 121 /*
 122  * stop debug
 123  */
 124 static void stop_dbg(void)
 125 {
 126         DbgDeregister();
 127         memset(&MAdapter, 0, sizeof(MAdapter));
 128         dprintf = no_printf;
 129 }
 130
 131 /*
 132  * didd callback function
 133  */
 134 static void *didd_callback(void *context, DESCRIPTOR * adapter,
 135                            int removal)
 136 {
 137         if (adapter->type == IDI_DADAPTER) {
 138                 DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."));
 139                 return (NULL);
 140         }
 141
 142         if (adapter->type == IDI_DIMAINT) {
 143                 if (removal) {
 144                         stop_dbg();
 145                 } else {
 146                         memcpy(&MAdapter, adapter, sizeof(MAdapter));
 147                         dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 148                         start_dbg();
 149                 }
 150         }
 151         return (NULL);
 152 }
 153
 154 /*
 155  * connect to didd
 156  */
 157 static int DIVA_INIT_FUNCTION connect_didd(void)
 158 {
 159         int x = 0;
 160         int dadapter = 0;
 161         IDI_SYNC_REQ req;
 162         DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
 163
 164         DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
 165
 166         for (x = 0; x < MAX_DESCRIPTORS; x++) {
 167                 if (DIDD_Table[x].type == IDI_DADAPTER) {       /* DADAPTER found */
 168                         dadapter = 1;
 169                         memcpy(&DAdapter, &DIDD_Table[x], sizeof(DAdapter));
 170                         req.didd_notify.e.Req = 0;
 171                         req.didd_notify.e.Rc =
 172                             IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
 173                         req.didd_notify.info.callback = (void *)didd_callback;
 174                         req.didd_notify.info.context = NULL;
 175                         DAdapter.request((ENTITY *) & req);
 176                         if (req.didd_notify.e.Rc != 0xff) {
 177                                 stop_dbg();
 178                                 return (0);
 179                         }
 180                         notify_handle = req.didd_notify.info.handle;
 181                 } else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */
 182                         memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
 183                         dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 184                         start_dbg();
 185                 }
 186         }
 187
 188         if (!dadapter) {
 189                 stop_dbg();
 190         }
 191
 192         return (dadapter);
 193 }
 194
 195 /*
 196  * disconnect from didd
 197  */
 198 static void disconnect_didd(void)
 199 {
 200         IDI_SYNC_REQ req;
 201
 202         stop_dbg();
 203
 204         req.didd_notify.e.Req = 0;
 205         req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
 206         req.didd_notify.info.handle = notify_handle;
 207         DAdapter.request((ENTITY *) & req);
 208 }
 209
 210 /*
 211  * init
 212  */
 213 int DIVA_INIT_FUNCTION divasfunc_init(int dbgmask)
 214 {
 215         char *version;
 216
 217         debugmask = dbgmask;
 218
 219         if (!connect_didd()) {
 220                 DBG_ERR(("divasfunc: failed to connect to DIDD."))
 221                 return (0);
 222         }
 223
 224         version = diva_xdi_common_code_build;
 225
 226         divasa_xdi_driver_entry();
 227
 228         return (1);
 229 }
 230
 231 /*
 232  * exit
 233  */
 234 void divasfunc_exit(void)
 235 {
 236         divasa_xdi_driver_unload();
 237         disconnect_didd();
 238 }