I have applied my last changes correcting the bug in dgbselect() to it
and here is the patch. Submit it please. Thank you!
BTW, there is a new option "NDGBPORTS". By default it is equal to
NDGB*16 and means the number of ports of all Digiboards for which the
tty structures are reserved. It can be set to the real value in config-file
like:
options "NDGBPORTS=8"
Submitted by: Serge A. Babkin <babkin@hq.icb.chel.su>
This commit is contained in:
jkh
parent
306caafb86
commit
1c1ef85e13
@ -1,7 +1,5 @@
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/*-
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* dgb.c $Id: dgb.c,v 1.1 1995/09/03 19:52:52 jkh Exp $
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*
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* Copyright (C) 1995 by Serge Babkin <babkin@hq.icb.chel.su>
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* dgb.c $Id: dgb.c,v 1.2 1995/09/04 01:58:41 jkh Exp $
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*
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* Digiboard driver.
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*
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@ -12,10 +10,6 @@
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* which is under GNU General Public License version 2 so this driver
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* is forced to be under GPL 2 too.
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*
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* Serge Babkin does not guarantee that this file is totally correct
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* for any given task and users of this file must accept responsibility
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* for any damage that occurs from the application of this file.
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*
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* Written by Serge Babkin,
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* Joint Stock Commercial Bank "Chelindbank"
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* (Chelyabinsk, Russia)
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@ -26,6 +20,12 @@
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#if NDGB > 0
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/* the overall number of ports controlled by this driver */
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#ifndef NDGBPORTS
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# define NDGBPORTS (NDGB*16)
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/reboot.h>
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@ -75,59 +75,11 @@
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#define CONTROL_INIT_STATE 0x20
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#define CONTROL_LOCK_STATE 0x40
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#define UNIT_MASK 0x30000
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#define PORT_MASK 0xF
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#define PORT_MASK 0x1F
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#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev)))
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#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK)
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#define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK)>>16)
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#define MINOR_TO_PORT(mynor) ((mynor) & 0xF)
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/*
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* Input buffer watermarks.
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* The external device is asked to stop sending when the buffer exactly reaches
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* high water, or when the high level requests it.
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* The high level is notified immediately (rather than at a later clock tick)
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* when this watermark is reached.
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* The buffer size is chosen so the watermark should almost never be reached.
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* The low watermark is invisibly 0 since the buffer is always emptied all at
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* once.
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*/
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#define RS_IHIGHWATER (3 * RS_IBUFSIZE / 4)
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/*
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* com state bits.
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* (CS_BUSY | CS_TTGO) and (CS_BUSY | CS_TTGO | CS_ODEVREADY) must be higher
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* than the other bits so that they can be tested as a group without masking
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* off the low bits.
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*
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* The following com and tty flags correspond closely:
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* CS_BUSY = TS_BUSY (maintained by comstart() and comflush())
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* CS_TTGO = ~TS_TTSTOP (maintained by comstart() and siostop())
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* CS_CTS_OFLOW = CCTS_OFLOW (maintained by comparam())
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* CS_RTS_IFLOW = CRTS_IFLOW (maintained by comparam())
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* TS_FLUSH is not used.
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* XXX I think TIOCSETA doesn't clear TS_TTSTOP when it clears IXON.
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* XXX CS_*FLOW should be CF_*FLOW in com->flags (control flags not state).
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*/
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#define CS_BUSY 0x80 /* output in progress */
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#define CS_TTGO 0x40 /* output not stopped by XOFF */
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#define CS_ODEVREADY 0x20 /* external device h/w ready (CTS) */
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#define CS_CHECKMSR 1 /* check of MSR scheduled */
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#define CS_CTS_OFLOW 2 /* use CTS output flow control */
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#define CS_DTR_OFF 0x10 /* DTR held off */
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#define CS_ODONE 4 /* output completed */
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#define CS_RTS_IFLOW 8 /* use RTS input flow control */
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static char const * const error_desc[] = {
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#define CE_OVERRUN 0
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"silo overflow",
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#define CE_INTERRUPT_BUF_OVERFLOW 1
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"interrupt-level buffer overflow",
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#define CE_TTY_BUF_OVERFLOW 2
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"tty-level buffer overflow",
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};
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#define CE_NTYPES 3
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#define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum])
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#define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK)
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/* types. XXX - should be elsewhere */
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typedef u_int Port_t; /* hardware port */
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@ -187,8 +139,6 @@ struct dgb_p {
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u_char last_modem_status; /* last MSR read by intr handler */
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u_char prev_modem_status; /* last MSR handled by high level */
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struct tty *tp; /* cross reference */
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/* Initial state. */
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struct termios it_in; /* should be in struct tty */
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struct termios it_out;
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@ -223,6 +173,8 @@ struct dgb_softc {
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struct dgb_softc dgb_softc[NDGB];
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struct dgb_p dgb_ports[NDGBPORTS];
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struct tty dgb_tty[NDGBPORTS];
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/*
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* The public functions in the com module ought to be declared in a com-driver
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@ -511,6 +463,7 @@ dgbattach(dev)
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int nfails;
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ushort *pstat;
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int lowwater;
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int nports=0;
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if(sc->status!=ENABLED) {
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DPRINT2("dbg%d: try to attach a disabled card\n",unit);
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@ -808,43 +761,27 @@ dgbattach(dev)
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return 0;
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}
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if(nports+sc->numports>NDGBPORTS) {
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printf("dgb%d: only %d ports are usable\n", unit, NDGBPORTS-nports);
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sc->numports=NDGBPORTS-nports;
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}
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/* allocate port and tty structures */
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sc->ports=&dgb_ports[nports];
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sc->ttys=&dgb_tty[nports];
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nports+=sc->numports;
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addr=setwin(sc,PORTBASE);
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pstat=(ushort *)(mem+addr);
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for(i=0; i<32 && pstat[i]; i++);
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if(i!=sc->numports) {
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printf("dgb%d: %d ports are shown as valid ones\n",unit,i);
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if(i<sc->numports)
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sc->numports=i;
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printf("dgb%d: %d ports will be used\n",unit,sc->numports);
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}
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MALLOC(sc->ports, struct dgb_p *, sizeof(struct dgb_p)*sc->numports,
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M_TTYS, M_NOWAIT);
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if(sc->ports==0) {
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printf("dgb%d: unable to malloc the per port structures\n",unit);
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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for(i=0; i<sc->numports && pstat[i]; i++)
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if(pstat[i])
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sc->ports[i].status=ENABLED;
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else {
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sc->ports[i].status=DISABLED;
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printf("dgb%d: port %d is broken\n", unit, i);
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}
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bzero(sc->ports, sizeof(struct dgb_p)*sc->numports);
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MALLOC(sc->ttys, struct tty *, sizeof(struct tty)*sc->numports,
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M_TTYS, M_NOWAIT);
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if(sc->ttys==0) {
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printf("dgb%d: unable to malloc the tty structures\n",unit);
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FREE(sc->ttys, M_TTYS);
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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}
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bzero(sc->ttys, sizeof(struct tty)*sc->numports);
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/* We should now init per-port structures */
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bc=(struct board_chan *)(mem + CHANSTRUCT);
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sc->mailbox=(struct global_data *)(mem + FEP_GLOBAL);
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@ -854,12 +791,9 @@ dgbattach(dev)
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else
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shrinkmem=0;
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for(i=0; i<sc->numports; i++, bc++) {
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port= &sc->ports[i];
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port->status=ENABLED;
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port->tty=&sc->ttys[i];
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port->unit=unit;
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@ -2016,9 +1950,25 @@ dgbselect(dev, rw, p)
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int rw;
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struct proc *p;
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{
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if (minor(dev) & CONTROL_MASK)
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int mynor;
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int unit,port;
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struct dgb_softc *sc;
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int ti;
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mynor=minor(dev);
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if (mynor & CONTROL_MASK)
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return (ENODEV);
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return (ttselect(dev & ~MINOR_MAGIC_MASK, rw, p));
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unit=MINOR_TO_UNIT(mynor);
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port=MINOR_TO_PORT(mynor);
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sc=&dgb_softc[unit];
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/* get index in the tty table */
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ti= &sc->ttys[port]-dgb_tty;
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return (ttselect(ti, rw, p));
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}
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static void
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@ -1,7 +1,5 @@
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/*-
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* dgreg.h $Id: dgreg.h,v 1.4 1995/07/13 08:07:46 root Exp root $
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*
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* Copyright (C) 1995 by Serge Babkin <babkin@hq.icb.chel.su>
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* dgreg.h $Id: dgreg.h,v 1.1 1995/09/03 19:52:55 jkh Exp $
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*
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* Digiboard driver.
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*
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@ -12,10 +10,6 @@
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* which is under GNU General Public License version 2 so this driver
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* is forced to be under GPL 2 too.
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*
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* Serge Babkin does not guarantee that this file is totally correct
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* for any given task and users of this file must accept responsibility
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* for any damage that occurs from the application of this file.
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*
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* Written by Serge Babkin,
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* Joint Stock Commercial Bank "Chelindbank"
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* (Chelyabinsk, Russia)
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@ -1,7 +1,5 @@
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/*-
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* dgb.c $Id: dgb.c,v 1.1 1995/09/03 19:52:52 jkh Exp $
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*
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* Copyright (C) 1995 by Serge Babkin <babkin@hq.icb.chel.su>
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* dgb.c $Id: dgb.c,v 1.2 1995/09/04 01:58:41 jkh Exp $
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*
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* Digiboard driver.
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*
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@ -12,10 +10,6 @@
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* which is under GNU General Public License version 2 so this driver
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* is forced to be under GPL 2 too.
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*
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* Serge Babkin does not guarantee that this file is totally correct
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* for any given task and users of this file must accept responsibility
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* for any damage that occurs from the application of this file.
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*
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* Written by Serge Babkin,
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* Joint Stock Commercial Bank "Chelindbank"
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* (Chelyabinsk, Russia)
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@ -26,6 +20,12 @@
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#if NDGB > 0
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/* the overall number of ports controlled by this driver */
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#ifndef NDGBPORTS
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# define NDGBPORTS (NDGB*16)
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/reboot.h>
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@ -75,59 +75,11 @@
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#define CONTROL_INIT_STATE 0x20
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#define CONTROL_LOCK_STATE 0x40
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#define UNIT_MASK 0x30000
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#define PORT_MASK 0xF
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#define PORT_MASK 0x1F
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#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev)))
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#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK)
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#define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK)>>16)
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#define MINOR_TO_PORT(mynor) ((mynor) & 0xF)
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/*
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* Input buffer watermarks.
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* The external device is asked to stop sending when the buffer exactly reaches
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* high water, or when the high level requests it.
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* The high level is notified immediately (rather than at a later clock tick)
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* when this watermark is reached.
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* The buffer size is chosen so the watermark should almost never be reached.
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* The low watermark is invisibly 0 since the buffer is always emptied all at
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* once.
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*/
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#define RS_IHIGHWATER (3 * RS_IBUFSIZE / 4)
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/*
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* com state bits.
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* (CS_BUSY | CS_TTGO) and (CS_BUSY | CS_TTGO | CS_ODEVREADY) must be higher
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* than the other bits so that they can be tested as a group without masking
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* off the low bits.
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*
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* The following com and tty flags correspond closely:
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* CS_BUSY = TS_BUSY (maintained by comstart() and comflush())
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* CS_TTGO = ~TS_TTSTOP (maintained by comstart() and siostop())
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* CS_CTS_OFLOW = CCTS_OFLOW (maintained by comparam())
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* CS_RTS_IFLOW = CRTS_IFLOW (maintained by comparam())
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* TS_FLUSH is not used.
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* XXX I think TIOCSETA doesn't clear TS_TTSTOP when it clears IXON.
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* XXX CS_*FLOW should be CF_*FLOW in com->flags (control flags not state).
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*/
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#define CS_BUSY 0x80 /* output in progress */
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#define CS_TTGO 0x40 /* output not stopped by XOFF */
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#define CS_ODEVREADY 0x20 /* external device h/w ready (CTS) */
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#define CS_CHECKMSR 1 /* check of MSR scheduled */
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#define CS_CTS_OFLOW 2 /* use CTS output flow control */
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#define CS_DTR_OFF 0x10 /* DTR held off */
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#define CS_ODONE 4 /* output completed */
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#define CS_RTS_IFLOW 8 /* use RTS input flow control */
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static char const * const error_desc[] = {
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#define CE_OVERRUN 0
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"silo overflow",
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#define CE_INTERRUPT_BUF_OVERFLOW 1
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"interrupt-level buffer overflow",
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#define CE_TTY_BUF_OVERFLOW 2
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"tty-level buffer overflow",
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};
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#define CE_NTYPES 3
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#define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum])
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#define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK)
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/* types. XXX - should be elsewhere */
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typedef u_int Port_t; /* hardware port */
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@ -187,8 +139,6 @@ struct dgb_p {
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u_char last_modem_status; /* last MSR read by intr handler */
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u_char prev_modem_status; /* last MSR handled by high level */
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struct tty *tp; /* cross reference */
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/* Initial state. */
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struct termios it_in; /* should be in struct tty */
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struct termios it_out;
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@ -223,6 +173,8 @@ struct dgb_softc {
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struct dgb_softc dgb_softc[NDGB];
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struct dgb_p dgb_ports[NDGBPORTS];
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struct tty dgb_tty[NDGBPORTS];
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/*
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* The public functions in the com module ought to be declared in a com-driver
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@ -511,6 +463,7 @@ dgbattach(dev)
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int nfails;
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ushort *pstat;
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int lowwater;
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int nports=0;
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if(sc->status!=ENABLED) {
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DPRINT2("dbg%d: try to attach a disabled card\n",unit);
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@ -808,43 +761,27 @@ dgbattach(dev)
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return 0;
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}
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if(nports+sc->numports>NDGBPORTS) {
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printf("dgb%d: only %d ports are usable\n", unit, NDGBPORTS-nports);
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sc->numports=NDGBPORTS-nports;
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}
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/* allocate port and tty structures */
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sc->ports=&dgb_ports[nports];
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sc->ttys=&dgb_tty[nports];
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nports+=sc->numports;
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addr=setwin(sc,PORTBASE);
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pstat=(ushort *)(mem+addr);
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for(i=0; i<32 && pstat[i]; i++);
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if(i!=sc->numports) {
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printf("dgb%d: %d ports are shown as valid ones\n",unit,i);
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if(i<sc->numports)
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sc->numports=i;
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printf("dgb%d: %d ports will be used\n",unit,sc->numports);
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}
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MALLOC(sc->ports, struct dgb_p *, sizeof(struct dgb_p)*sc->numports,
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M_TTYS, M_NOWAIT);
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if(sc->ports==0) {
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printf("dgb%d: unable to malloc the per port structures\n",unit);
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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for(i=0; i<sc->numports && pstat[i]; i++)
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if(pstat[i])
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sc->ports[i].status=ENABLED;
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else {
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sc->ports[i].status=DISABLED;
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printf("dgb%d: port %d is broken\n", unit, i);
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}
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bzero(sc->ports, sizeof(struct dgb_p)*sc->numports);
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MALLOC(sc->ttys, struct tty *, sizeof(struct tty)*sc->numports,
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M_TTYS, M_NOWAIT);
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if(sc->ttys==0) {
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printf("dgb%d: unable to malloc the tty structures\n",unit);
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FREE(sc->ttys, M_TTYS);
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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}
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bzero(sc->ttys, sizeof(struct tty)*sc->numports);
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/* We should now init per-port structures */
|
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bc=(struct board_chan *)(mem + CHANSTRUCT);
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sc->mailbox=(struct global_data *)(mem + FEP_GLOBAL);
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@ -854,12 +791,9 @@ dgbattach(dev)
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else
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shrinkmem=0;
|
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for(i=0; i<sc->numports; i++, bc++) {
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port= &sc->ports[i];
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port->status=ENABLED;
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port->tty=&sc->ttys[i];
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port->unit=unit;
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|
||||
@ -2016,9 +1950,25 @@ dgbselect(dev, rw, p)
|
||||
int rw;
|
||||
struct proc *p;
|
||||
{
|
||||
if (minor(dev) & CONTROL_MASK)
|
||||
int mynor;
|
||||
int unit,port;
|
||||
struct dgb_softc *sc;
|
||||
int ti;
|
||||
|
||||
mynor=minor(dev);
|
||||
|
||||
if (mynor & CONTROL_MASK)
|
||||
return (ENODEV);
|
||||
return (ttselect(dev & ~MINOR_MAGIC_MASK, rw, p));
|
||||
|
||||
unit=MINOR_TO_UNIT(mynor);
|
||||
port=MINOR_TO_PORT(mynor);
|
||||
|
||||
sc=&dgb_softc[unit];
|
||||
|
||||
/* get index in the tty table */
|
||||
ti= &sc->ttys[port]-dgb_tty;
|
||||
|
||||
return (ttselect(ti, rw, p));
|
||||
}
|
||||
|
||||
static void
|
||||
|
||||
@ -1,7 +1,5 @@
|
||||
/*-
|
||||
* dgreg.h $Id: dgreg.h,v 1.4 1995/07/13 08:07:46 root Exp root $
|
||||
*
|
||||
* Copyright (C) 1995 by Serge Babkin <babkin@hq.icb.chel.su>
|
||||
* dgreg.h $Id: dgreg.h,v 1.1 1995/09/03 19:52:55 jkh Exp $
|
||||
*
|
||||
* Digiboard driver.
|
||||
*
|
||||
@ -12,10 +10,6 @@
|
||||
* which is under GNU General Public License version 2 so this driver
|
||||
* is forced to be under GPL 2 too.
|
||||
*
|
||||
* Serge Babkin does not guarantee that this file is totally correct
|
||||
* for any given task and users of this file must accept responsibility
|
||||
* for any damage that occurs from the application of this file.
|
||||
*
|
||||
* Written by Serge Babkin,
|
||||
* Joint Stock Commercial Bank "Chelindbank"
|
||||
* (Chelyabinsk, Russia)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user