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kernel/linux-imx6_3.14.28/drivers/isdn/hysdn/ince1pc.h 4.5 KB
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  /*
   * Linux driver for HYSDN cards
   * common definitions for both sides of the bus:
   * - conventions both spoolers must know
   * - channel numbers agreed upon
   *
   * Author    M. Steinkopf
   * Copyright 1999 by M. Steinkopf
   *
   * This software may be used and distributed according to the terms
   * of the GNU General Public License, incorporated herein by reference.
   *
   */
  
  #ifndef __INCE1PC_H__
  #define __INCE1PC_H__
  
  /*  basic scalar definitions have same meanning,
   *  but their declaration location depends on environment
   */
  
  /*--------------------------------------channel numbers---------------------*/
  #define CHAN_SYSTEM     0x0001      /* system channel (spooler to spooler) */
  #define CHAN_ERRLOG     0x0005      /* error logger */
  #define CHAN_CAPI       0x0064      /* CAPI interface */
  #define CHAN_NDIS_DATA  0x1001      /* NDIS data transfer */
  
  /*--------------------------------------POF ready msg-----------------------*/
  /* NOTE: after booting POF sends system ready message to PC: */
  #define RDY_MAGIC       0x52535953UL    /* 'SYSR' reversed */
  #define RDY_MAGIC_SIZE  4               /* size in bytes */
  
  #define MAX_N_TOK_BYTES 255
  
  #define MIN_RDY_MSG_SIZE    RDY_MAGIC_SIZE
  #define MAX_RDY_MSG_SIZE    (RDY_MAGIC_SIZE + MAX_N_TOK_BYTES)
  
  #define SYSR_TOK_END            0
  #define SYSR_TOK_B_CHAN         1   /* nr. of B-Channels;   DataLen=1; def: 2 */
  #define SYSR_TOK_FAX_CHAN       2   /* nr. of FAX Channels; DataLen=1; def: 0 */
  #define SYSR_TOK_MAC_ADDR       3   /* MAC-Address; DataLen=6; def: auto */
  #define SYSR_TOK_ESC            255 /* undefined data size yet */
  /* default values, if not corrected by token: */
  #define SYSR_TOK_B_CHAN_DEF     2   /* assume 2 B-Channels */
  #define SYSR_TOK_FAX_CHAN_DEF   1   /* assume 1 FAX Channel */
  
  /*  syntax of new SYSR token stream:
   *  channel: CHAN_SYSTEM
   *  msgsize: MIN_RDY_MSG_SIZE <= x <= MAX_RDY_MSG_SIZE
   *           RDY_MAGIC_SIZE   <= x <= (RDY_MAGIC_SIZE+MAX_N_TOK_BYTES)
   *  msg    : 0 1 2 3 {4 5 6 ..}
   *           S Y S R  MAX_N_TOK_BYTES bytes of TokenStream
   *
   *  TokenStream     :=   empty
   *                     | {NonEndTokenChunk} EndToken RotlCRC
   *  NonEndTokenChunk:= NonEndTokenId DataLen [Data]
   *  NonEndTokenId   := 0x01 .. 0xFE                 1 BYTE
   *  DataLen         := 0x00 .. 0xFF                 1 BYTE
   *  Data            := DataLen bytes
   *  EndToken        := 0x00
   *  RotlCRC         := special 1 byte CRC over all NonEndTokenChunk bytes
   *                     s. RotlCRC algorithm
   *
   *  RotlCRC algorithm:
   *      ucSum= 0                        1 unsigned char
   *      for all NonEndTokenChunk bytes:
   *          ROTL(ucSum,1)               rotate left by 1
   *          ucSum += Char;              add current byte with swap around
   *      RotlCRC= ~ucSum;                invert all bits for result
   *
   *  note:
   *  - for 16-bit FIFO add padding 0 byte to achieve even token data bytes!
   */
  
  /*--------------------------------------error logger------------------------*/
  /* note: pof needs final 0 ! */
  #define ERRLOG_CMD_REQ          "ERRLOG ON"
  #define ERRLOG_CMD_REQ_SIZE     10              /* with final 0 byte ! */
  #define ERRLOG_CMD_STOP         "ERRLOG OFF"
  #define ERRLOG_CMD_STOP_SIZE    11              /* with final 0 byte ! */
  
  #define ERRLOG_ENTRY_SIZE       64      /* sizeof(tErrLogEntry) */
  					/* remaining text size = 55 */
  #define ERRLOG_TEXT_SIZE    (ERRLOG_ENTRY_SIZE - 2 * 4 - 1)
  
  typedef struct ErrLogEntry_tag {
  
  	/*00 */ unsigned long ulErrType;
  
  	/*04 */ unsigned long ulErrSubtype;
  
  	/*08 */ unsigned char ucTextSize;
  
  	/*09 */ unsigned char ucText[ERRLOG_TEXT_SIZE];
  	/* ASCIIZ of len ucTextSize-1 */
  
  /*40 */
  } tErrLogEntry;
  
  
  #if defined(__TURBOC__)
  #if sizeof(tErrLogEntry) != ERRLOG_ENTRY_SIZE
  #error size of tErrLogEntry != ERRLOG_ENTRY_SIZE
  #endif				/*  */
  #endif				/*  */
  
  /*--------------------------------------DPRAM boot spooler------------------*/
  /*  this is the struture used between pc and
   *  hyperstone to exchange boot data
   */
  #define DPRAM_SPOOLER_DATA_SIZE 0x20
  typedef struct DpramBootSpooler_tag {
  
  	/*00 */ unsigned char Len;
  
  	/*01 */ volatile unsigned char RdPtr;
  
  	/*02 */ unsigned char WrPtr;
  
  	/*03 */ unsigned char Data[DPRAM_SPOOLER_DATA_SIZE];
  
  /*23 */
  } tDpramBootSpooler;
  
  
  #define DPRAM_SPOOLER_MIN_SIZE  5       /* Len+RdPtr+Wrptr+2*data */
  #define DPRAM_SPOOLER_DEF_SIZE  0x23    /* current default size   */
  
  /*--------------------------------------HYCARD/ERGO DPRAM SoftUart----------*/
  /* at DPRAM offset 0x1C00: */
  #define SIZE_RSV_SOFT_UART  0x1B0   /* 432 bytes reserved for SoftUart */
  
  
  #endif	/* __INCE1PC_H__ */