224 lines
7.4 KiB
C
Executable File
224 lines
7.4 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/api.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 "tnn.h"
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#include "hardware.h"
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#ifdef EXTDEV
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#include <go32.h>
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#include <dpmi.h>
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#include "api.h"
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#include "api32.h"
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char manifest[20];
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unsigned dev_irq = 0;
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__dpmi_raddr tx_rframe;
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L1FRAME tx_pframe;
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/* Anzahl der Kanaele holen */
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int l1_enum_ports(void)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return(0);
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r.x.ax = API32_ENUM_PORTS;
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__dpmi_int(dev_irq+1, &r);
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return(r.x.ax);
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}
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/* einen Kanal initialisieren */
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int l1_init_port(unsigned port, unsigned baud, unsigned mode)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return(0);
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r.x.ax = API32_INIT_PORT;
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r.x.bx = port & 0xFFFF;
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r.x.cx = baud & 0xFFFF;
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r.x.dx = mode & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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return(r.x.ax);
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}
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/* das naechste Frame empfangen */
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void *l1_rx_frame(void)
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{
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static L1FRAME frame_buf;
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__dpmi_regs r;
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if (dev_irq == 0) return(NULL);
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r.x.ax = API32_RX_FRAME;
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__dpmi_int(dev_irq+1, &r);
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if (r.x.ax) {
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dosmemget((((int)r.x.es)<<4)+r.x.bx,sizeof(L1FRAME),&frame_buf);
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return(&frame_buf);
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}
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return(NULL);
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}
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/* einen Sende-Buffer holen */
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L1FRAME far *l1_get_txbuf(unsigned port)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return(NULL);
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r.x.ax = API32_GET_TXBUF;
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r.x.bx = port & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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if (r.x.ax) { /* Buffer bekommen */
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tx_rframe.segment = r.x.es;
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tx_rframe.offset16 = r.x.bx;
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return(&tx_pframe);
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}
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return(NULL);
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}
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/* den Sender anstossen */
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void l1_kick(void)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return;
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dosmemput(&tx_pframe,sizeof(L1FRAME),
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((int)tx_rframe.segment<<4)+tx_rframe.offset16);
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r.x.ax = API32_KICK;
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__dpmi_int(dev_irq+1, &r);
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}
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/* Calibrierung durchfuehren */
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void l1_calibrate(unsigned port, unsigned minutes)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return;
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r.x.ax = API32_CALIBRATE;
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r.x.bx = port & 0xFFFF;
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r.x.cx = minutes & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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}
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/* den Kanal-Status abfragen */
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unsigned l1_state(unsigned port)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return(0);
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r.x.ax = API32_STATE;
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r.x.bx = port & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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return(r.x.ax);
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}
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/* den Hardwarenamen eines Kanals holen */
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char far *l1_ident(unsigned port)
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{
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static char ident[20];
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__dpmi_regs r;
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if (dev_irq == 0) return(NULL);
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r.x.ax = API32_IDENT;
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r.x.bx = port & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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dosmemget((((int)r.x.es)<<4)+r.x.bx, 20, ident);
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return(ident);
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}
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/* ist dieser Kanal aktiv? */
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int l1_active(unsigned port)
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{
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__dpmi_regs r;
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if (dev_irq == 0) return(0);
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r.x.ax = API32_ACTIVE;
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r.x.bx = port & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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return(r.x.ax);
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}
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/* die L1-Statistik lesen bzw loeschen */
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L1STATISTICS far *l1_stat(unsigned port, int del)
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{
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static L1STATISTICS pstat;
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__dpmi_regs r;
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if (dev_irq == 0) return(NULL);
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r.x.ax = API32_STAT;
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r.x.bx = port & 0xFFFF;
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r.x.cx = del & 0xFFFF;
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__dpmi_int(dev_irq+1, &r);
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dosmemget(((int)r.x.es<<4)+r.x.bx, sizeof(L1STATISTICS), &pstat);
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return(&pstat);
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}
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int find_devirq(void)
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{
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unsigned irq;
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__dpmi_raddr p;
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for (irq = 0x60; irq <= 0xF0; irq++) { /* freien IRQ suchen */
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__dpmi_get_real_mode_interrupt_vector(irq, &p);
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if (p.segment) {
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dosmemget((((int)p.segment)<<4)+p.offset16, 20, manifest);
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if (strncmp(manifest,"FlexNet",7)==0)
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{ /* schon installiert */
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dev_irq = irq;
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return(1);
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}
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}
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}
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return(0);
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}
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#endif
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/* End of os/go32/api.c */
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