drivers/isdn/eicon/eicon_isa.h

   1 /* $Id: eicon_isa.h,v 1.3 1999/03/29 11:19:47 armin Exp $
   2  *
   3  * ISDN low-level module for Eicon.Diehl active ISDN-Cards.
   4  *
   5  * Copyright 1998    by Fritz Elfert (fritz@wuemaus.franken.de)
   6  * Copyright 1998,99 by Armin Schindler (mac@melware.de)
   7  * Copyright 1999    Cytronics & Melware (info@melware.de)
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2, or (at your option)
  12  * any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  * $Log: eicon_isa.h,v $
  24  * Revision 1.3  1999/03/29 11:19:47  armin
  25  * I/O stuff now in seperate file (eicon_io.c)
  26  * Old ISA type cards (S,SX,SCOM,Quadro,S2M) implemented.
  27  *
  28  * Revision 1.2  1999/03/02 12:37:46  armin
  29  * Added some important checks.
  30  * Analog Modem with DSP.
  31  * Channels will be added to Link-Level after loading firmware.
  32  *
  33  * Revision 1.1  1999/01/01 18:09:44  armin
  34  * First checkin of new eicon driver.
  35  * DIVA-Server BRI/PCI and PRI/PCI are supported.
  36  * Old diehl code is obsolete.
  37  *
  38  *
  39  */
  40
  41 #ifndef eicon_isa_h
  42 #define eicon_isa_h
  43
  44 #ifdef __KERNEL__
  45
  46 /* Factory defaults for ISA-Cards */
  47 #define EICON_ISA_MEMBASE 0xd0000
  48 #define EICON_ISA_IRQ     3
  49 /* shmem offset for Quadro parts */
  50 #define EICON_ISA_QOFFSET 0x0800
  51
  52 typedef struct {
  53         __u16 length __attribute__ ((packed));   /* length of data/parameter field         */
  54         __u8  P[270];                            /* data/parameter field                   */
  55 } eicon_scom_PBUFFER;
  56
  57 /* General communication buffer */
  58 typedef struct {
  59         __u8   Req;                                /* request register                       */
  60         __u8   ReqId;                              /* request task/entity identification     */
  61         __u8   Rc;                                 /* return code register                   */
  62         __u8   RcId;                               /* return code task/entity identification */
  63         __u8   Ind;                                /* Indication register                    */
  64         __u8   IndId;                              /* Indication task/entity identification  */
  65         __u8   IMask;                              /* Interrupt Mask Flag                    */
  66         __u8   RNR;                                /* Receiver Not Ready (set by PC)         */
  67         __u8   XLock;                              /* XBuffer locked Flag                    */
  68         __u8   Int;                                /* ISDN interrupt                         */
  69         __u8   ReqCh;                              /* Channel field for layer-3 Requests     */
  70         __u8   RcCh;                               /* Channel field for layer-3 Returncodes  */
  71         __u8   IndCh;                              /* Channel field for layer-3 Indications  */
  72         __u8   MInd;                               /* more data indication field             */
  73         __u16  MLength;                            /* more data total packet length          */
  74         __u8   ReadyInt;                           /* request field for ready interrupt      */
  75         __u8   Reserved[12];                       /* reserved space                         */
  76         __u8   IfType;                             /* 1 = 16k-Interface                      */
  77         __u16  Signature __attribute__ ((packed)); /* ISDN adapter Signature                 */
  78         eicon_scom_PBUFFER XBuffer;                /* Transmit Buffer                        */
  79         eicon_scom_PBUFFER RBuffer;                /* Receive Buffer                         */
  80 } eicon_isa_com;
  81
  82 /* struct for downloading firmware */
  83 typedef struct {
  84         __u8  ctrl;
  85         __u8  card;
  86         __u8  msize;
  87         __u8  fill0;
  88         __u16 ebit __attribute__ ((packed));
  89         __u32 eloc __attribute__ ((packed));
  90         __u8  reserved[20];
  91         __u16 signature __attribute__ ((packed));
  92         __u8  fill[224];
  93         __u8  b[256];
  94 } eicon_isa_boot;
  95
  96 /* Shared memory */
  97 typedef union {
  98         unsigned char  c[0x400];
  99         eicon_isa_com  com;
 100         eicon_isa_boot boot;
 101 } eicon_isa_shmem;
 102
 103 /*
 104  * card's description
 105  */
 106 typedef struct {
 107         int               ramsize;
 108         int               irq;      /* IRQ                        */
 109         void*             card;
 110         eicon_isa_shmem*  shmem;    /* Shared-memory area         */
 111         unsigned char*    intack;   /* Int-Acknowledge            */
 112         unsigned char*    stopcpu;  /* Writing here stops CPU     */
 113         unsigned char*    startcpu; /* Writing here starts CPU    */
 114         unsigned char     type;     /* card type                  */
 115         int               channels; /* No. of channels            */
 116         unsigned char     irqprobe; /* Flag: IRQ-probing          */
 117         unsigned char     mvalid;   /* Flag: Memory is valid      */
 118         unsigned char     ivalid;   /* Flag: IRQ is valid         */
 119         unsigned char     master;   /* Flag: Card ist Quadro 1/4  */
 120         void*             generic;  /* Ptr to generic card struct */
 121 } eicon_isa_card;
 122
 123 /* Offsets for special locations on standard cards */
 124 #define INTACK     0x03fe
 125 #define STOPCPU    0x0400
 126 #define STARTCPU   0x0401
 127 #define RAMSIZE    0x0400
 128 /* Offsets for special location on PRI card */
 129 #define INTACK_P   0x3ffc
 130 #define STOPCPU_P  0x3ffe
 131 #define STARTCPU_P 0x3fff
 132 #define RAMSIZE_P  0x4000
 133
 134
 135 extern int eicon_isa_load(eicon_isa_card *card, eicon_isa_codebuf *cb);
 136 extern int eicon_isa_bootload(eicon_isa_card *card, eicon_isa_codebuf *cb);
 137 extern void eicon_isa_release(eicon_isa_card *card);
 138 extern void eicon_isa_printpar(eicon_isa_card *card);
 139 extern void eicon_isa_transmit(eicon_isa_card *card);
 140 extern int eicon_isa_find_card(int Mem, int Irq, char * Id);
 141
 142 #endif  /* __KERNEL__ */
 143
 144 #endif  /* eicon_isa_h */