drivers/isdn/eicon/eicon_isa.h

   1 /* $Id: eicon_isa.h,v 1.10 2000/05/07 08:51:04 armin Exp $
   2  *
   3  * ISDN low-level module for Eicon active ISDN-Cards.
   4  *
   5  * Copyright 1998      by Fritz Elfert (fritz@isdn4linux.de)
   6  * Copyright 1998-2000 by Armin Schindler (mac@melware.de)
   7  * Copyright 1999,2000 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  */
  24
  25 #ifndef eicon_isa_h
  26 #define eicon_isa_h
  27
  28 #ifdef __KERNEL__
  29 #include <linux/config.h>
  30
  31 /* Factory defaults for ISA-Cards */
  32 #define EICON_ISA_MEMBASE 0xd0000
  33 #define EICON_ISA_IRQ     3
  34 /* shmem offset for Quadro parts */
  35 #define EICON_ISA_QOFFSET 0x0800
  36
  37 typedef struct {
  38         __u16 length __attribute__ ((packed));   /* length of data/parameter field         */
  39         __u8  P[270];                            /* data/parameter field                   */
  40 } eicon_scom_PBUFFER;
  41
  42 /* General communication buffer */
  43 typedef struct {
  44         __u8   Req;                                /* request register                       */
  45         __u8   ReqId;                              /* request task/entity identification     */
  46         __u8   Rc;                                 /* return code register                   */
  47         __u8   RcId;                               /* return code task/entity identification */
  48         __u8   Ind;                                /* Indication register                    */
  49         __u8   IndId;                              /* Indication task/entity identification  */
  50         __u8   IMask;                              /* Interrupt Mask Flag                    */
  51         __u8   RNR;                                /* Receiver Not Ready (set by PC)         */
  52         __u8   XLock;                              /* XBuffer locked Flag                    */
  53         __u8   Int;                                /* ISDN interrupt                         */
  54         __u8   ReqCh;                              /* Channel field for layer-3 Requests     */
  55         __u8   RcCh;                               /* Channel field for layer-3 Returncodes  */
  56         __u8   IndCh;                              /* Channel field for layer-3 Indications  */
  57         __u8   MInd;                               /* more data indication field             */
  58         __u16  MLength;                            /* more data total packet length          */
  59         __u8   ReadyInt;                           /* request field for ready interrupt      */
  60         __u8   Reserved[12];                       /* reserved space                         */
  61         __u8   IfType;                             /* 1 = 16k-Interface                      */
  62         __u16  Signature __attribute__ ((packed)); /* ISDN adapter Signature                 */
  63         eicon_scom_PBUFFER XBuffer;                /* Transmit Buffer                        */
  64         eicon_scom_PBUFFER RBuffer;                /* Receive Buffer                         */
  65 } eicon_isa_com;
  66
  67 /* struct for downloading firmware */
  68 typedef struct {
  69         __u8  ctrl;
  70         __u8  card;
  71         __u8  msize;
  72         __u8  fill0;
  73         __u16 ebit __attribute__ ((packed));
  74         __u32 eloc __attribute__ ((packed));
  75         __u8  reserved[20];
  76         __u16 signature __attribute__ ((packed));
  77         __u8  fill[224];
  78         __u8  b[256];
  79 } eicon_isa_boot;
  80
  81 /* Shared memory */
  82 typedef union {
  83         unsigned char  c[0x400];
  84         eicon_isa_com  com;
  85         eicon_isa_boot boot;
  86 } eicon_isa_shmem;
  87
  88 /*
  89  * card's description
  90  */
  91 typedef struct {
  92         int               ramsize;
  93         int               irq;      /* IRQ                        */
  94         unsigned long     physmem;  /* physical memory address    */
  95 #ifdef CONFIG_MCA
  96         int               io;       /* IO-port for MCA brand      */
  97 #endif /* CONFIG_MCA */
  98         void*             card;
  99         eicon_isa_shmem*  shmem;    /* Shared-memory area         */
 100         unsigned char*    intack;   /* Int-Acknowledge            */
 101         unsigned char*    stopcpu;  /* Writing here stops CPU     */
 102         unsigned char*    startcpu; /* Writing here starts CPU    */
 103         unsigned char     type;     /* card type                  */
 104         int               channels; /* No. of channels            */
 105         unsigned char     irqprobe; /* Flag: IRQ-probing          */
 106         unsigned char     mvalid;   /* Flag: Memory is valid      */
 107         unsigned char     ivalid;   /* Flag: IRQ is valid         */
 108         unsigned char     master;   /* Flag: Card ist Quadro 1/4  */
 109 } eicon_isa_card;
 110
 111 /* Offsets for special locations on standard cards */
 112 #define INTACK     0x03fe
 113 #define STOPCPU    0x0400
 114 #define STARTCPU   0x0401
 115 #define RAMSIZE    0x0400
 116 /* Offsets for special location on PRI card */
 117 #define INTACK_P   0x3ffc
 118 #define STOPCPU_P  0x3ffe
 119 #define STARTCPU_P 0x3fff
 120 #define RAMSIZE_P  0x4000
 121
 122
 123 extern int eicon_isa_load(eicon_isa_card *card, eicon_isa_codebuf *cb);
 124 extern int eicon_isa_bootload(eicon_isa_card *card, eicon_isa_codebuf *cb);
 125 extern void eicon_isa_release(eicon_isa_card *card);
 126 extern void eicon_isa_printpar(eicon_isa_card *card);
 127 extern void eicon_isa_transmit(eicon_isa_card *card);
 128 extern int eicon_isa_find_card(int Mem, int Irq, char * Id);
 129
 130 #endif  /* __KERNEL__ */
 131
 132 #endif  /* eicon_isa_h */