drivers/isdn/hardware/eicon/debuglib.c

   1
   2 /*
   3  *
   4  Copyright (c) Eicon Networks, 2002.
   5  *
   6  This source file is supplied for the use with
   7  Eicon Networks range of DIVA Server Adapters.
   8  *
   9  Eicon File Revision :    2.1
  10  *
  11  This program is free software; you can redistribute it and/or modify
  12  it under the terms of the GNU General Public License as published by
  13  the Free Software Foundation; either version 2, or (at your option)
  14  any later version.
  15  *
  16  This program is distributed in the hope that it will be useful,
  17  but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
  18  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  19  See the GNU General Public License for more details.
  20  *
  21  You should have received a copy of the GNU General Public License
  22  along with this program; if not, write to the Free Software
  23  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  *
  25  */
  26
  27 #include "debuglib.h"
  28
  29 #ifdef DIVA_NO_DEBUGLIB
  30 static DIVA_DI_PRINTF dprintf;
  31 #else /* DIVA_NO_DEBUGLIB */
  32
  33 _DbgHandle_ myDriverDebugHandle = { 0 /*!Registered*/, DBG_HANDLE_VERSION };
  34 DIVA_DI_PRINTF dprintf = no_printf;
  35 /*****************************************************************************/
  36 #define DBG_FUNC(name)                                                  \
  37         void                                                            \
  38         myDbgPrint_##name(char *format, ...)                            \
  39         { va_list ap;                                                   \
  40                 if (myDriverDebugHandle.dbg_prt)                        \
  41                 { va_start(ap, format);                         \
  42                         (myDriverDebugHandle.dbg_prt)                   \
  43                                 (myDriverDebugHandle.id, DLI_##name, format, ap); \
  44                         va_end(ap);                                     \
  45                 } }
  46 DBG_FUNC(LOG)
  47 DBG_FUNC(FTL)
  48 DBG_FUNC(ERR)
  49 DBG_FUNC(TRC)
  50 DBG_FUNC(MXLOG)
  51 DBG_FUNC(FTL_MXLOG)
  52 void
  53 myDbgPrint_EVL(long msgID, ...)
  54 { va_list ap;
  55         if (myDriverDebugHandle.dbg_ev)
  56         { va_start(ap, msgID);
  57                 (myDriverDebugHandle.dbg_ev)
  58                         (myDriverDebugHandle.id, (unsigned long)msgID, ap);
  59                 va_end(ap);
  60         } }
  61 DBG_FUNC(REG)
  62 DBG_FUNC(MEM)
  63 DBG_FUNC(SPL)
  64 DBG_FUNC(IRP)
  65 DBG_FUNC(TIM)
  66 DBG_FUNC(BLK)
  67 DBG_FUNC(TAPI)
  68 DBG_FUNC(NDIS)
  69 DBG_FUNC(CONN)
  70 DBG_FUNC(STAT)
  71 DBG_FUNC(SEND)
  72 DBG_FUNC(RECV)
  73 DBG_FUNC(PRV0)
  74 DBG_FUNC(PRV1)
  75 DBG_FUNC(PRV2)
  76 DBG_FUNC(PRV3)
  77 /*****************************************************************************/
  78 int
  79 DbgRegister(char *drvName, char *drvTag, unsigned long dbgMask)
  80 {
  81         int len;
  82 /*
  83  * deregister (if already registered) and zero out myDriverDebugHandle
  84  */
  85         DbgDeregister();
  86 /*
  87  * initialize the debug handle
  88  */
  89         myDriverDebugHandle.Version = DBG_HANDLE_VERSION;
  90         myDriverDebugHandle.id  = -1;
  91         myDriverDebugHandle.dbgMask = dbgMask | (DL_EVL | DL_FTL | DL_LOG);
  92         len = strlen(drvName);
  93         memcpy(myDriverDebugHandle.drvName, drvName,
  94                (len < sizeof(myDriverDebugHandle.drvName)) ?
  95                len : sizeof(myDriverDebugHandle.drvName) - 1);
  96         len = strlen(drvTag);
  97         memcpy(myDriverDebugHandle.drvTag, drvTag,
  98                (len < sizeof(myDriverDebugHandle.drvTag)) ?
  99                len : sizeof(myDriverDebugHandle.drvTag) - 1);
 100 /*
 101  * Try to register debugging via old (and only) interface
 102  */
 103         dprintf("\000\377", &myDriverDebugHandle);
 104         if (myDriverDebugHandle.dbg_prt)
 105         {
 106                 return (1);
 107         }
 108 /*
 109  * Check if we registered with an old maint driver (see debuglib.h)
 110  */
 111         if (myDriverDebugHandle.dbg_end != NULL
 112              /* location of 'dbg_prt' in _OldDbgHandle_ struct */
 113              && (myDriverDebugHandle.regTime.LowPart ||
 114                  myDriverDebugHandle.regTime.HighPart))
 115                 /* same location as in _OldDbgHandle_ struct */
 116         {
 117                 dprintf("%s: Cannot log to old maint driver !", drvName);
 118                 myDriverDebugHandle.dbg_end =
 119                         ((_OldDbgHandle_ *)&myDriverDebugHandle)->dbg_end;
 120                 DbgDeregister();
 121         }
 122         return (0);
 123 }
 124 /*****************************************************************************/
 125 void
 126 DbgSetLevel(unsigned long dbgMask)
 127 {
 128         myDriverDebugHandle.dbgMask = dbgMask | (DL_EVL | DL_FTL | DL_LOG);
 129 }
 130 /*****************************************************************************/
 131 void
 132 DbgDeregister(void)
 133 {
 134         if (myDriverDebugHandle.dbg_end)
 135         {
 136                 (myDriverDebugHandle.dbg_end)(&myDriverDebugHandle);
 137         }
 138         memset(&myDriverDebugHandle, 0, sizeof(myDriverDebugHandle));
 139 }
 140 void xdi_dbg_xlog(char *x, ...) {
 141         va_list ap;
 142         va_start(ap, x);
 143         if (myDriverDebugHandle.dbg_end &&
 144             (myDriverDebugHandle.dbg_irq || myDriverDebugHandle.dbg_old) &&
 145             (myDriverDebugHandle.dbgMask & DL_STAT)) {
 146                 if (myDriverDebugHandle.dbg_irq) {
 147                         (*(myDriverDebugHandle.dbg_irq))(myDriverDebugHandle.id,
 148                                                          (x[0] != 0) ? DLI_TRC : DLI_XLOG, x, ap);
 149                 } else {
 150                         (*(myDriverDebugHandle.dbg_old))(myDriverDebugHandle.id, x, ap);
 151                 }
 152         }
 153         va_end(ap);
 154 }
 155 /*****************************************************************************/
 156 #endif /* DIVA_NO_DEBUGLIB */