drivers/isdn/eicon/eicon_isa.h

   1 /* $Id: eicon_isa.h,v 1.1.4.1 2001/11/20 14:19:35 kai 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 software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  *
  12  */
  13
  14 #ifndef eicon_isa_h
  15 #define eicon_isa_h
  16
  17 #ifdef __KERNEL__
  18 #include <linux/config.h>
  19
  20 /* Factory defaults for ISA-Cards */
  21 #define EICON_ISA_MEMBASE 0xd0000
  22 #define EICON_ISA_IRQ     3
  23 /* shmem offset for Quadro parts */
  24 #define EICON_ISA_QOFFSET 0x0800
  25
  26 typedef struct {
  27         __u16 length __attribute__ ((packed));   /* length of data/parameter field         */
  28         __u8  P[270];                            /* data/parameter field                   */
  29 } eicon_scom_PBUFFER;
  30
  31 /* General communication buffer */
  32 typedef struct {
  33         __u8   Req;                                /* request register                       */
  34         __u8   ReqId;                              /* request task/entity identification     */
  35         __u8   Rc;                                 /* return code register                   */
  36         __u8   RcId;                               /* return code task/entity identification */
  37         __u8   Ind;                                /* Indication register                    */
  38         __u8   IndId;                              /* Indication task/entity identification  */
  39         __u8   IMask;                              /* Interrupt Mask Flag                    */
  40         __u8   RNR;                                /* Receiver Not Ready (set by PC)         */
  41         __u8   XLock;                              /* XBuffer locked Flag                    */
  42         __u8   Int;                                /* ISDN interrupt                         */
  43         __u8   ReqCh;                              /* Channel field for layer-3 Requests     */
  44         __u8   RcCh;                               /* Channel field for layer-3 Returncodes  */
  45         __u8   IndCh;                              /* Channel field for layer-3 Indications  */
  46         __u8   MInd;                               /* more data indication field             */
  47         __u16  MLength;                            /* more data total packet length          */
  48         __u8   ReadyInt;                           /* request field for ready interrupt      */
  49         __u8   Reserved[12];                       /* reserved space                         */
  50         __u8   IfType;                             /* 1 = 16k-Interface                      */
  51         __u16  Signature __attribute__ ((packed)); /* ISDN adapter Signature                 */
  52         eicon_scom_PBUFFER XBuffer;                /* Transmit Buffer                        */
  53         eicon_scom_PBUFFER RBuffer;                /* Receive Buffer                         */
  54 } eicon_isa_com;
  55
  56 /* struct for downloading firmware */
  57 typedef struct {
  58         __u8  ctrl;
  59         __u8  card;
  60         __u8  msize;
  61         __u8  fill0;
  62         __u16 ebit __attribute__ ((packed));
  63         __u32 eloc __attribute__ ((packed));
  64         __u8  reserved[20];
  65         __u16 signature __attribute__ ((packed));
  66         __u8  fill[224];
  67         __u8  b[256];
  68 } eicon_isa_boot;
  69
  70 /* Shared memory */
  71 typedef union {
  72         unsigned char  c[0x400];
  73         eicon_isa_com  com;
  74         eicon_isa_boot boot;
  75 } eicon_isa_shmem;
  76
  77 /*
  78  * card's description
  79  */
  80 typedef struct {
  81         int               ramsize;
  82         int               irq;      /* IRQ                        */
  83         unsigned long     physmem;  /* physical memory address    */
  84 #ifdef CONFIG_MCA
  85         int               io;       /* IO-port for MCA brand      */
  86 #endif /* CONFIG_MCA */
  87         void*             card;
  88         eicon_isa_shmem*  shmem;    /* Shared-memory area         */
  89         unsigned char*    intack;   /* Int-Acknowledge            */
  90         unsigned char*    stopcpu;  /* Writing here stops CPU     */
  91         unsigned char*    startcpu; /* Writing here starts CPU    */
  92         unsigned char     type;     /* card type                  */
  93         int               channels; /* No. of channels            */
  94         unsigned char     irqprobe; /* Flag: IRQ-probing          */
  95         unsigned char     mvalid;   /* Flag: Memory is valid      */
  96         unsigned char     ivalid;   /* Flag: IRQ is valid         */
  97         unsigned char     master;   /* Flag: Card ist Quadro 1/4  */
  98 } eicon_isa_card;
  99
 100 /* Offsets for special locations on standard cards */
 101 #define INTACK     0x03fe
 102 #define STOPCPU    0x0400
 103 #define STARTCPU   0x0401
 104 #define RAMSIZE    0x0400
 105 /* Offsets for special location on PRI card */
 106 #define INTACK_P   0x3ffc
 107 #define STOPCPU_P  0x3ffe
 108 #define STARTCPU_P 0x3fff
 109 #define RAMSIZE_P  0x4000
 110
 111
 112 extern int eicon_isa_load(eicon_isa_card *card, eicon_isa_codebuf *cb);
 113 extern int eicon_isa_bootload(eicon_isa_card *card, eicon_isa_codebuf *cb);
 114 extern void eicon_isa_release(eicon_isa_card *card);
 115 extern void eicon_isa_printpar(eicon_isa_card *card);
 116 extern void eicon_isa_transmit(eicon_isa_card *card);
 117 extern int eicon_isa_find_card(int Mem, int Irq, char * Id);
 118
 119 #endif  /* __KERNEL__ */
 120
 121 #endif  /* eicon_isa_h */