release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/isdn/hardware/eicon/divasfunc.c

   1 /* $Id: divasfunc.c,v 1.23.4.2 2004/08/28 20:03:53 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                     strlcpy(IoAdapters[card - 1]->Name,
  78                             IoAdapters[card - 1]->Properties.Name,
  79                             sizeof(IoAdapters[card - 1]->Name));
  80                 req.didd_remove_adapter.e.Req = 0;
  81                 req.didd_add_adapter.e.Rc = IDI_SYNC_REQ_DIDD_ADD_ADAPTER;
  82                 req.didd_add_adapter.info.descriptor = (void *) &d;
  83                 DAdapter.request((ENTITY *) & req);
  84                 if (req.didd_add_adapter.e.Rc != 0xff) {
  85                         DBG_ERR(("DIDD register A(%d) failed !", card))
  86                 }
  87                 IoAdapters[card - 1]->os_trap_nfy_Fnc = NULL;
  88         }
  89 }
  90
  91 /*
  92  * remove an adapter
  93  */
  94 void diva_xdi_didd_remove_adapter(int card)
  95 {
  96         IDI_SYNC_REQ req;
  97         ADAPTER *a = &IoAdapters[card - 1]->a;
  98
  99         IoAdapters[card - 1]->os_trap_nfy_Fnc = NULL;
 100         DBG_TRC(("DIDD de-register A(%d)", card))
 101         req.didd_remove_adapter.e.Req = 0;
 102         req.didd_remove_adapter.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER;
 103         req.didd_remove_adapter.info.p_request =
 104             (IDI_CALL) Requests[card - 1];
 105         DAdapter.request((ENTITY *) & req);
 106         memset(&(a->IdTable), 0x00, 256);
 107 }
 108
 109 /*
 110  * start debug
 111  */
 112 static void start_dbg(void)
 113 {
 114         DbgRegister("DIVAS", DRIVERRELEASE_DIVAS, (debugmask) ? debugmask : DBG_DEFAULT);
 115         DBG_LOG(("DIVA ISDNXDI BUILD (%s[%s]-%s-%s)",
 116                  DIVA_BUILD, diva_xdi_common_code_build, __DATE__,
 117                  __TIME__))
 118 }
 119
 120 /*
 121  * stop debug
 122  */
 123 static void stop_dbg(void)
 124 {
 125         DbgDeregister();
 126         memset(&MAdapter, 0, sizeof(MAdapter));
 127         dprintf = no_printf;
 128 }
 129
 130 /*
 131  * didd callback function
 132  */
 133 static void *didd_callback(void *context, DESCRIPTOR * adapter,
 134                            int removal)
 135 {
 136         if (adapter->type == IDI_DADAPTER) {
 137                 DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."));
 138                 return (NULL);
 139         }
 140
 141         if (adapter->type == IDI_DIMAINT) {
 142                 if (removal) {
 143                         stop_dbg();
 144                 } else {
 145                         memcpy(&MAdapter, adapter, sizeof(MAdapter));
 146                         dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 147                         start_dbg();
 148                 }
 149         }
 150         return (NULL);
 151 }
 152
 153 /*
 154  * connect to didd
 155  */
 156 static int DIVA_INIT_FUNCTION connect_didd(void)
 157 {
 158         int x = 0;
 159         int dadapter = 0;
 160         IDI_SYNC_REQ req;
 161         DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
 162
 163         DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
 164
 165         for (x = 0; x < MAX_DESCRIPTORS; x++) {
 166                 if (DIDD_Table[x].type == IDI_DADAPTER) {       /* DADAPTER found */
 167                         dadapter = 1;
 168                         memcpy(&DAdapter, &DIDD_Table[x], sizeof(DAdapter));
 169                         req.didd_notify.e.Req = 0;
 170                         req.didd_notify.e.Rc =
 171                             IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
 172                         req.didd_notify.info.callback = (void *)didd_callback;
 173                         req.didd_notify.info.context = NULL;
 174                         DAdapter.request((ENTITY *) & req);
 175                         if (req.didd_notify.e.Rc != 0xff) {
 176                                 stop_dbg();
 177                                 return (0);
 178                         }
 179                         notify_handle = req.didd_notify.info.handle;
 180                 } else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */
 181                         memcpy(&MAdapter, &DIDD_Table[x], sizeof(DAdapter));
 182                         dprintf = (DIVA_DI_PRINTF) MAdapter.request;
 183                         start_dbg();
 184                 }
 185         }
 186
 187         if (!dadapter) {
 188                 stop_dbg();
 189         }
 190
 191         return (dadapter);
 192 }
 193
 194 /*
 195  * disconnect from didd
 196  */
 197 static void disconnect_didd(void)
 198 {
 199         IDI_SYNC_REQ req;
 200
 201         stop_dbg();
 202
 203         req.didd_notify.e.Req = 0;
 204         req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
 205         req.didd_notify.info.handle = notify_handle;
 206         DAdapter.request((ENTITY *) & req);
 207 }
 208
 209 /*
 210  * init
 211  */
 212 int DIVA_INIT_FUNCTION divasfunc_init(int dbgmask)
 213 {
 214         char *version;
 215
 216         debugmask = dbgmask;
 217
 218         if (!connect_didd()) {
 219                 DBG_ERR(("divasfunc: failed to connect to DIDD."))
 220                 return (0);
 221         }
 222
 223         version = diva_xdi_common_code_build;
 224
 225         divasa_xdi_driver_entry();
 226
 227         return (1);
 228 }
 229
 230 /*
 231  * exit
 232  */
 233 void divasfunc_exit(void)
 234 {
 235         divasa_xdi_driver_unload();
 236         disconnect_didd();
 237 }