379 lines
15 KiB
C
Executable file
379 lines
15 KiB
C
Executable file
/************************************************************************/
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/* */
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/* ***** ***** */
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/* ***** ***** */
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/* ***** ***** */
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/* ***** ***** */
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/* *************** *************** */
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/* ***************** ***************** */
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/* *************** *************** */
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/* ***** ***** TheNetNode */
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/* ***** ***** Portable */
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/* ***** ***** Network */
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/* ***** ***** Software */
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/* */
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/* File os/go32/vanessa.c (maintained by: ???) */
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/* */
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/* This file is part of "TheNetNode" - Software Package */
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/* */
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/* Copyright (C) 1998 - 2008 NORD><LINK e.V. Braunschweig */
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/* */
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/* This program is free software; you can redistribute it and/or modify */
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/* it under the terms of the NORD><LINK ALAS (Allgemeine Lizenz fuer */
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/* Amateurfunk Software) as published by Hans Georg Giese (DF2AU) */
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/* on 13/Oct/1992; either version 1, or (at your option) any later */
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/* version. */
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/* */
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/* This program is distributed WITHOUT ANY WARRANTY only for further */
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/* development and learning purposes. See the ALAS (Allgemeine Lizenz */
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/* fuer Amateurfunk Software). */
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/* */
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/* You should have received a copy of the NORD><LINK ALAS (Allgemeine */
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/* Lizenz fuer Amateurfunk Software) along with this program; if not, */
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/* write to NORD><LINK e.V., Hinter dem Berge 5, D-38108 Braunschweig */
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/* */
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/* Dieses Programm ist PUBLIC DOMAIN, mit den Einschraenkungen durch */
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/* die ALAS (Allgemeine Lizenz fuer Amateurfunk Software), entweder */
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/* Version 1, veroeffentlicht von Hans Georg Giese (DF2AU), */
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/* am 13.Oct.1992, oder (wenn gewuenscht) jede spaetere Version. */
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/* */
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/* Dieses Programm wird unter Haftungsausschluss vertrieben, aus- */
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/* schliesslich fuer Weiterentwicklungs- und Lehrzwecke. Naeheres */
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/* koennen Sie der ALAS (Allgemeine Lizenz fuer Amateurfunk Software) */
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/* entnehmen. */
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/* */
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/* Sollte dieser Software keine ALAS (Allgemeine Lizenz fuer Amateur- */
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/* funk Software) beigelegen haben, wenden Sie sich bitte an */
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/* NORD><LINK e.V., Hinter dem Berge 5, D-38108 Braunschweig */
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/* */
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/************************************************************************/
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#include "vanessa.h"
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#ifdef __GO32__
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#include <sys/farptr.h>
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#include <sys/movedata.h>
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#include <go32.h>
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#endif
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#ifdef __GO32__
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#define ReadVanW(port,what) _farpeekw(_dos_ds,0xD0000+((port)<<12)+(what))
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#define WriteVanW(port,what,data) _farpokew(_dos_ds,0xD0000+((port)<<12)+(what),data)
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#define ReadVanB(port,what) _farpeekb(_dos_ds,0xD0000+((port)<<12)+(what))
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#define WriteVanB(port,what,data) _farpokeb(_dos_ds,0xD0000+((port)<<12)+(what),data)
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#define ReadVanX(port,what,data,size) dosmemget(0xD0000+((port<<12)+(what)), size, data)
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#define WriteVanX(port,what,data,size) dosmemput(data, size, 0xD0000+((port<<12)+(what)))
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#else
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#define ReadVanW(port,what) (*((unsigned *)MK_FP(0xD000,((port)<<12)+(what))))
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#define WriteVanW(port,what,data) *((unsigned *)MK_FP(0xD000,((port)<<12)+(what)))=data
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#define ReadVanB(port,what) (*((unsigned char *)MK_FP(0xD000,((port)<<12)+(what))))
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#define WriteVanB(port,what,data) *((unsigned char *)MK_FP(0xD000,((port)<<12)+(what)))=data
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#define ReadVanX(port,what,data,size) memcpy(data, MK_FP(0xD000,((port<<12)+(what))),size)
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#define WriteVanX(port,what,data,size) memcpy(MK_FP(0xD000,((port<<12)+(what))),data,size)
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#endif
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/* lokale Funktionen */
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static void vanessa_send_test(int);
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static void vanessa_get_frame(void);
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static void vanessa_put_frame(void);
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static void vanessa_config(WORD);
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static void vanessa_reset_tnc(void);
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void vanessa(void);
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BOOLEAN van_test(int);
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WORD vanessa_dcd(PORTINFO *);
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void vanessa_l1init(void);
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static BOOLEAN van_tst, van_res, van_cmd;
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static char van_version[L2PNUM]; /* Versions-Kennung */
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static char van_revision[L2PNUM]; /* der VANESSA */
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static char van_patch[L2PNUM];
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static int van_major = 0;
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/************************************************************************/
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/* Level1 RX/TX fuer VANESSA */
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/* wird staendig in der main() Hauptschleife aufgerufen. */
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/************************************************************************/
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void vanessa(void)
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{
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WORD port;
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vanessa_get_frame(); /* read VANESSA CRAM */
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vanessa_put_frame(); /* write frame into VANESSA CRAM */
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for (port=1; port < L2PNUM; port += 2) /* hb9pae 930521 */
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{
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if (portpar[port].major == van_major)
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{
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if (ReadVanW(port, dp_cCMD)==0) /* pruefen of vanessa restart */
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{
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commandflag[port] = TRUE; /* wenn TRUE, parameter uebergeben */
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commandflag[port-1] = TRUE;
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portstat[port].reset_count++; /* und restart zaehlen */
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WriteVanW(port, dp_cCMD, 1);
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}
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}
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}
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if (van_res) /* auxiliary cmd to Vanessa */
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vanessa_reset_tnc(); /* VANESSA resetten */
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if (van_cmd || van_tst)
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for (port=0; port < L2PNUM; port++) /* hb9pae 930521 */
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{
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if (portpar[port].major == van_major)
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{
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if (commandflag[port])
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{
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vanessa_config(port); /* VANESSA Port neue Parameter */
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commandflag[port] = FALSE;
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}
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if (testflag[port])
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{
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vanessa_send_test(port); /* VANESSA Test-Folge senden */
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testflag[port] = FALSE;
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}
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} /* gueltiger VANESSA-Port */
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} /* alle Ports */
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van_tst = van_res = van_cmd = FALSE;
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}
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/************************************************************************/
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/* Vanessa INIT */
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/************************************************************************/
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void vanessa_l1init(void)
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{
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WORD port;
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for (port=0; port<L2PNUM; port++)
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if (portpar[port].major == van_major)
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{
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vanessa_config(port); /* erst mal konfigurieren */
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outportb(ledio_adr[port], LED_OFF); /* LED Vanessa off */
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WriteVanW(port,dp_iFProd,!CRAM_VALID); /* CRAM Vanessa loeschen */
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}
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van_tst = van_res = van_cmd = FALSE;
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}
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/************************************************************************/
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/* Frame aus Kette holen und in Ringbuffer legen */
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/*----------------------------------------------------------------------*/
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void vanessa_put_frame(void)
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{
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int port, len;
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MBHEAD *txfhdl;
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LHEAD *l2flp;
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l2flp = txl2fl;
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for (port=0; port<L2PNUM; l2flp++, port++) /* jeden Port durchlaufen */
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if (kick[port]) /* was zum senden... */
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if (portpar[port].major == van_major)
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if (ReadVanW(port,dp_oFProd) != CRAM_VALID) /* CRAM Buffer free */
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{
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ulink((LEHEAD *)(txfhdl = (MBHEAD *) l2flp->head)); /*Zeiger holen*/
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len = cpymbflat(blkbuf, txfhdl);
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WriteVanX(port, dp_oBuffer, blkbuf, len);
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relink((LEHEAD *)txfhdl, /* als gesendet betrachten und in */
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(LEHEAD *)stfl.tail); /* die gesendet Liste umhaengen */
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kick[port] = ((LHEAD *)l2flp->head != l2flp);
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WriteVanW(port,dp_iBufEmpty,1); /* Frame wird gesendet */
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WriteVanW(port,dp_oLFrm,len); /* set size and ... */
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WriteVanW(port,dp_oFProd,CRAM_VALID); /* Terminate */
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} /* if CRAM_VALID... */
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} /* end */
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/************************************************************************/
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/* vanessa_get_frame() - Frame(s) aus dem VANESSA CRAM holen */
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/*----------------------------------------------------------------------*/
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void vanessa_get_frame(void)
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{
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int port;
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WORD l;
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MBHEAD *rxfhd;
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for (port=0; port < L2PNUM; port++)
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if (portpar[port].major == van_major)
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while (ReadVanW(port,dp_iFProd)==CRAM_VALID) /* frame available */
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{
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outportb(ledio_adr[port],LED_ON);
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l = ReadVanW(port,dp_iLFrm); /* get size */
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if (l >= BLOCKSIZE) l = 0;
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if (l > 0) {
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ReadVanX(port, dp_iBuffer, blkbuf, l);
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(rxfhd = cpyflatmb(blkbuf, l))->l2port = port;
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relink((LEHEAD *)rxfhd, (LEHEAD *)rxfl.tail);
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}
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WriteVanW(port,dp_iFProd,!CRAM_VALID); /* CRAM free */
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outportb(ledio_adr[port],LED_OFF);
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} /* Frame empfangen */
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}
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/************************************************************************/
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/* VANESSA mit Parametern versorgen */
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/*----------------------------------------------------------------------*/
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void vanessa_config(WORD port)
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{
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WORD portspeed;
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PORTINFO *p;
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if (portpar[port].major == van_major)
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{
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p = portpar+port;
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WriteVanW(port,dp_Slottime, p->slottime & 0xff);
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WriteVanW(port,dp_TxDelay, p->txdelay & 0xff);
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WriteVanW(port,dp_Persistance, p->persistance & 0xff);
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WriteVanW(port,dp_FullDuplex, fullduplex(port)?1:0);
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if (extclock(port)) portspeed = 0xff07; /* External Clock!! */
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else
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switch (p->speed)
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{
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case 12: portspeed = 0xff00; break;
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case 24: portspeed = 0xff01; break;
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case 48: portspeed = 0xff02; break;
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case 96: portspeed = 0xff03; break;
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case 192: portspeed = 0xff04; break;
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case 384: portspeed = 0xff05; break;
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default: portspeed = 0xff00; p->speed = 12;
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}
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WriteVanW(port,dp_vanspeed,portspeed);
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/* mhm, das sieht mir komisch aus ##BUMP## DB7KG */
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WriteVanB((port&0xfe), ((dp_cData)+0x74F), multibaud(port) ? 1 : 0);
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WriteVanB(port, ((dp_cData)+0x74F), multibaud(port) ? 1 : 0);
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WriteVanW(port, dp_oMagic, 0);
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WriteVanW(port, dp_reReadParams, CRAM_VALID);
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outportb(ledio_adr[port], LED_OFF); /* LED Vanessa off */
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WriteVanW(port,dp_iFProd,!CRAM_VALID); /* CRAM Vanessa loeschen */
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}
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}
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/************************************************************************/
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/* Reset Befehl an alle VANESSA's geben */
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/*----------------------------------------------------------------------*/
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void vanessa_reset_tnc(void)
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{
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int port;
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for (port = 0; port < L2PNUM; port++) /* Alle FP's durchgehen */
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{
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if ( portpar[port].reset_port /* soll dieser Reset bekommen? */
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&& portpar[port].major == van_major
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)
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{
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portpar[port].reset_port = FALSE; /* rueckstellen */
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outportb(reset_adr[port>>1],0xFF);/* set RESET and... */
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delay(50); /* .. wait some time */
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outportb(reset_adr[port>>1],0x0); /* remove RESET again */
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}
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}
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}
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/************************************************************************/
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/* TEST-Befehl ausfuehren, funktioniert nur ab VANESSA Firmware 4.0 !! */
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/*----------------------------------------------------------------------*/
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void vanessa_send_test(int port)
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{
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if (portpar[port].major == van_major)
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{
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if (ReadVanW(port,dp_oFProd) != CRAM_VALID) /* CRAM Buffer free */
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{
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WriteVanW(port,dp_oLFrm,-1); /* Frame Size = -1 */
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WriteVanW(port,dp_oFProd,CRAM_VALID); /* CRAM buffer valid */
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}
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testflag[port] = FALSE; /* TEST fertig */
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}
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}
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/*******************************************************************/
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/* Testen ob ueberhaupt ne VAN da ist */
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/* Patch dazu gekommen, 22/02/97 DG1KWA */
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/* PS: in der alten Routine war auch noch ein Fehler :-) */
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/*******************************************************************/
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BOOLEAN van_test(int port)
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{
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van_version[port] = 4; /* aktuelle Version steht nicht im DP */
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van_revision[port] = ReadVanB((port&0xFE),dp_cData+0x751) / 16;
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van_patch[port] = ReadVanB((port&0xFE),dp_cData+0x74E); /* new */
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return(ReadVanW((port&0xFE)+1,dp_cData+0x750)==0x3412);
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}
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WORD vanessa_dcd(PORTINFO *port)
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{
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int state = 0;
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int minor = port->minor;
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if (ReadVanW(minor,dp_oFProd) == CRAM_VALID) /* Sendedaten in der VAN */
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state |= TXBFLAG;
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if (ReadVanW(minor,dp_iFProd) == CRAM_VALID) /* Empfangsdaten */
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state |= RXBFLAG;
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if (ReadVanB(minor,dp_iPTT))
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state |= PTTFLAG;
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if (!ReadVanB(minor,dp_iDCD))
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state |= DCDFLAG;
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return(state); /* Kanal ist frei */
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}
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static void vanessa_ctl(int req, int port)
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{
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switch(req) {
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case L1CRES: van_res = TRUE;
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break;
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case L1CCMD: van_cmd = TRUE;
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break;
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case L1CTST: van_tst = TRUE;
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}
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}
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static int vanessa_attach(int port, int unused_minor, BOOLEAN check_only)
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{
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if (van_test(port)) {
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if (!check_only) /* nur pruefen? */
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portpar[port].minor = port;
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return(1);
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}
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return(0);
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}
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static void vanessa_info(int what, int port, MBHEAD *mbp)
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{
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switch (what) {
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case HW_INF_IDENT :
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default_l1info(what, port, mbp);
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break;
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case HW_INF_INFO :
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putprintf(mbp, "VAN v%x.%02x%c",
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van_version[port],
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van_revision[port],
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van_patch[port]);
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break;
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default :
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default_l1info(what, port, mbp);
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}
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}
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static int register_vanessa(void)
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{
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MAJOR *m;
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int i;
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for (i = 0; i < L2PNUM; i++)
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if (van_test(i)) { /* das koennte Probleme machen! */
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m = register_major();
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m->name = "VANESSA";
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m->handle = vanessa;
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m->ctl = vanessa_ctl;
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m->dcd = vanessa_dcd;
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m->attach = vanessa_attach;
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m->info = vanessa_info;
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return(van_major = num_major);
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}
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return(0);
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}
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/* End of os/go32/vanessa.c */
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