folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1
simh-testsetgenerator/SEL32/sel32_con.c
Jim Bevier 25b79339fd SEL32: Do general code cleanup to remove unused code. 
SEL32: Update Ping and ICMP support code to use correct packet size.
SEL32: Update SetupNet script to support latest Fedora release.
SEL32: Improve disk write speed.
SEL32: Add .tap file reassignent support in sel32_mt.c.
2023-10-09 20:34:56 -04:00

695 lines
33 KiB
C
Raw Blame History

/* sel32_con.c: SEL 32 Class F IOP processor console.
Copyright (c) 2018-2023, James C. Bevier
Portions provided by Richard Cornwell, Geert Rolf and other SIMH contributers
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
JAMES C. BEVIER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
This is the standard console interface. It is subchannel of the IOP 7e00.
These units each buffer one record in local memory and signal
ready when the buffer is full or empty. The channel must be
ready to recieve/transmit data when they are activated since
they will transfer their block during chan_cmd. All data is
transmitted as ASCII characters.
*/
#include "sel32_defs.h"
#include "sim_tmxr.h"
#if NUM_DEVS_CON > 0
extern uint32 CPUSTATUS;
extern uint32 attention_trap;
#define UNIT_CON UNIT_DISABLE
#define CON_WAIT 1000
#define CMD u3
/* Held in u3 is the device command and status */
#define CON_INCH 0x00 /* Initialize channel command */
#define CON_INCH2 0xf0 /* Initialize channel command for processing */
#define CON_WR 0x01 /* Write console */
#define CON_RD 0x02 /* Read console */
#define CON_NOP 0x03 /* No op command */
#define CON_SNS 0x04 /* Sense command */
#define CON_ECHO 0x0a /* Read with Echo */
#define CON_RDBWD 0x0c /* Read backward */
#define CON_CON 0x1f /* connect line */
#define CON_DIS 0x23 /* disconnect line */
#define CON_RWD 0x37 /* TOF and write line */
#define CON_MSK 0xff /* Command mask */
/* Status held in u3 */
/* controller/unit address in upper 16 bits */
#define CON_ATAT 0x4000 /* working on @@A input */
#define CON_READ 0x2000 /* Read mode selected */
#define CON_OUTPUT 0x1000 /* Output ready for unit */
#define CON_EKO 0x0800 /* Echo input character */
#define CON_REQ 0x0400 /* Request key pressed */
#define CON_CR 0x0200 /* Output at beginning of line */
#define CON_INPUT 0x0100 /* Input ready for unit */
/* Input buffer pointer held in u4 */
#define SNS u5
/* in u5 packs sense byte 0,1 and 3 */
/* Sense byte 0 */
#define SNS_CMDREJ 0x80000000 /* Command reject */
#define SNS_INTVENT 0x40000000 /* Unit intervention required */
/* sense byte 3 */
#define SNS_RDY 0x80 /* device ready */
#define SNS_ONLN 0x40 /* device online */
#define SNS_DSR 0x08 /* data set ready */
#define SNS_DCD 0x04 /* data carrier detect */
/* std devices. data structures
con_dev Console device descriptor
con_unit Console unit descriptor
con_reg Console register list
con_mod Console modifiers list
*/
struct _con_data
{
uint8 incnt; /* char count */
uint8 ibuff[145]; /* Input line buffer */
}
con_data[NUM_UNITS_CON];
uint32 atbuf=0; /* attention buffer */
uint32 outbusy = 0; /* output waiting on timeout */
uint32 inbusy = 0; /* input waiting on timeout */
/* forward definitions */
t_stat con_preio(UNIT *uptr, uint16 chan);
t_stat con_startcmd(UNIT*, uint16, uint8);
void con_ini(UNIT*, t_bool);
t_stat con_srvi(UNIT*);
t_stat con_srvo(UNIT*);
t_stat con_haltio(UNIT *);
t_stat con_rschnlio(UNIT *uptr); /* Reset Channel */
t_stat con_poll(UNIT *);
t_stat con_reset(DEVICE *);
/* channel program information */
CHANP con_chp[NUM_UNITS_CON] = {0};
MTAB con_mod[] = {
{MTAB_XTD | MTAB_VUN | MTAB_VALR, 0, "DEV", "DEV", &set_dev_addr, &show_dev_addr, NULL},
{0}
};
UNIT con_unit[] = {
{UDATA(&con_srvi, UNIT_CON|UNIT_IDLE, 0), CON_WAIT, UNIT_ADDR(0x7EFC)}, /* 0 Input */
{UDATA(&con_srvo, UNIT_CON, 0), CON_WAIT, UNIT_ADDR(0x7EFD)}, /* 1 Output */
};
DIB con_dib = {
con_preio, /* t_stat (*pre_io)(UNIT *uptr, uint16 chan)*/ /* Pre Start I/O */
con_startcmd, /* t_stat (*start_cmd)(UNIT *uptr, uint16 chan, uint8 cmd)*/ /* Start command */
con_haltio, /* t_stat (*halt_io)(UNIT *uptr) */ /* Halt I/O */
NULL, /* t_stat (*stop_io)(UNIT *uptr) */ /* Stop I/O */
NULL, /* t_stat (*test_io)(UNIT *uptr) */ /* Test I/O */
NULL, /* t_stat (*rsctl_io)(UNIT *uptr) */ /* Reset Controller */
con_rschnlio, /* t_stat (*rschnl_io)(UNIT *uptr) */ /* Reset Channel */
NULL, /* t_stat (*iocl_io)(CHANP *chp, int32 tic_ok)) */ /* Process IOCL */
con_ini, /* void (*dev_ini)(UNIT *, t_bool) */ /* init function */
con_unit, /* UNIT* units */ /* Pointer to units structure */
con_chp, /* CHANP* chan_prg */ /* Pointer to chan_prg structure */
NULL, /* IOCLQ *ioclq_ptr */ /* IOCL entries, 1 per UNIT */
NUM_UNITS_CON, /* uint8 numunits */ /* number of units defined */
0x03, /* uint8 mask */ /* 2 devices - device mask */
0x7e00, /* uint16 chan_addr */ /* parent channel address */
0, /* uint32 chan_fifo_in */ /* fifo input index */
0, /* uint32 chan_fifo_out */ /* fifo output index */
{0} /* uint32 chan_fifo[FIFO_SIZE] */ /* interrupt status fifo for channel */
};
DEVICE con_dev = {
"CON", con_unit, NULL, con_mod,
NUM_UNITS_CON, 8, 15, 1, 8, 8,
// We must always have a consol
// NULL, NULL, &con_reset, NULL, &con_attach, &con_detach,
NULL, NULL, &con_reset, NULL, NULL, NULL,
&con_dib, DEV_DIS|DEV_DISABLE|DEV_DEBUG, 0, dev_debug
};
/*
* Console print routines.
*/
/* initialize the console chan/unit */
void con_ini(UNIT *uptr, t_bool f) {
int unit = (uptr - con_unit); /* unit 0 */
uptr->u4 = 0; /* no input count */
con_data[unit].incnt = 0; /* no input data */
uptr->CMD &= LMASK; /* leave only chsa */
uptr->SNS = SNS_RDY|SNS_ONLN; /* status is online & ready */
sim_cancel(uptr); /* stop input poll */
if (unit == 0) {
sim_activate(uptr, 1000); /* start input poll */
}
}
/* start a console operation */
t_stat con_preio(UNIT *uptr, uint16 chan) {
DEVICE *dptr = get_dev(uptr);
int unit = (uptr - dptr->units);
if ((uptr->CMD & CON_MSK) != 0) { /* just return if busy */
sim_debug(DEBUG_CMD, dptr, "con_preio unit=%02x BUSY\n", unit);
return SNS_BSY;
}
sim_debug(DEBUG_CMD, dptr, "con_preio unit=%02x OK\n", unit);
return SCPE_OK; /* good to go */
}
/* start an I/O operation */
t_stat con_startcmd(UNIT *uptr, uint16 chan, uint8 cmd) {
DEVICE *dptr = uptr->dptr;
int unit = (uptr - con_unit); /* unit 0 is read, unit 1 is write */
uint16 chsa = GET_UADDR(uptr->CMD);
CHANP *chp = find_chanp_ptr(chsa); /* find the chanp pointer */
uint8 ch;
if ((uptr->CMD & CON_MSK) != 0) { /* is unit busy */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd unit %01x chan %02x cmd %02x BUSY cmd %02x uptr %p\n",
unit, chan, cmd, uptr->CMD, uptr);
return SNS_BSY; /* yes, return busy */
}
sim_debug(DEBUG_CMD, dptr,
"con_startcmd @%s unit %01x chan %04x cmd %02x CMD %04x enter\n",
(CPUSTATUS & ONIPU)?"IPU":"CPU", unit, chsa, cmd, uptr->CMD);
/* substitute CON_INCH2 for CON_INCH for processing */
if (cmd == CON_INCH)
cmd = CON_INCH2; /* save INCH command as 0xf0 */
/* process the commands */
switch (cmd & 0xFF) {
case CON_CON: /* 0x1f */ /* Connect, return Data Set ready */
uptr->SNS |= (SNS_DSR|SNS_DCD); /* Data set ready, Data Carrier detected */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd CON CMD %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
uptr->CMD &= LMASK; /* nothing left, command complete */
return SNS_CHNEND|SNS_DEVEND;
break;
case CON_DIS: /* 0x23 */ /* Disconnect has do nothing */
uptr->SNS &= ~(SNS_DSR|SNS_DCD); /* Data set not ready */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd DIS CMD %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
uptr->CMD &= LMASK; /* nothing left, command complete */
return SNS_CHNEND|SNS_DEVEND;
break;
case CON_SNS: /* 0x04 */ /* Sense */
/* value 4 is Data Set Ready */
/* value 5 is Data carrier detected n/u */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd cmd %04x: Cmd Sense %02x\n", chsa, uptr->SNS);
ch = uptr->SNS & 0xff; /* Sense byte 3 */
if (chan_write_byte(chsa, &ch)) { /* write byte to memory */
/* write error */
cmd = 0; /* no cmd now */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd write error unit %02x: CMD %08x read %02x u4 %02x ccw_count %02x\n",
unit, uptr->CMD, ch, uptr->u4, chp->ccw_count);
}
uptr->CMD &= LMASK; /* nothing left, command complete */
return SNS_CHNEND|SNS_DEVEND;
break;
/* if input tried from output device, error */
case CON_RD: /* 0x02 */ /* Read command */
case CON_ECHO: /* 0x0a */ /* Read command w/ECHO */
case CON_RDBWD: /* 0x0c */ /* Read Backward */
if (unit == 1) {
/* if input requested for output device, give error */
uptr->SNS |= SNS_CMDREJ; /* command rejected */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd Read to output device CMD %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
return SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK; /* unit check */
break;
}
sim_debug(DEBUG_CMD, dptr,
"con_startcmd READ %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
uptr->CMD &= ~CON_MSK; /* remove old CMD */
uptr->CMD |= (cmd & CON_MSK); /* save command */
if (cmd == CON_ECHO) /* 0x0a */
uptr->CMD |= CON_EKO; /* save echo status */
atbuf = 0; /* reset attention buffer */
uptr->CMD |= CON_READ; /* show read mode */
uptr->SNS |= (SNS_RDY|SNS_ONLN); /* status is online & ready */
/* input is polled, so no start needed */
sim_activate_abs(uptr, 250); /* start us off */
return SCPE_OK; /* no status change */
break;
case CON_RWD: /* 0x37 */ /* TOF and write line */
case CON_WR: /* 0x01 */ /* Write command */
if (unit == 0) {
/* if output requested for input device, give error */
uptr->SNS |= SNS_CMDREJ; /* command rejected */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd Write to input device CMD %08x chsa %04x cmd = %02x\n",
uptr->CMD, chsa, cmd);
return SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK; /* unit check */
break;
}
uptr->SNS |= (SNS_RDY|SNS_ONLN); /* status is online & ready */
uptr->CMD &= ~CON_MSK; /* remove old CMD */
uptr->CMD |= (cmd & CON_MSK); /* save command */
/* using value 500 or larger causes diag to fail on 32/27 */
/* using value 230 or larger causes UTX21B to fail on 32/67 */
/* 32/67 error sequence */
/* Starting Syslog Daemon */
/* ioi: sio at 801 failed, cc=2, retry=0 */
/* panic: ioi: sio - bad cc */
//11523 sim_activate(uptr, 200); /* start us off */
sim_activate_abs(uptr, 200); /* start us off */
return SCPE_OK; /* no status change */
break;
case CON_INCH2: /* 0xf0 */ /* INCH command */
case CON_NOP: /* 0x03 */ /* NOP has do nothing */
uptr->SNS |= (SNS_RDY|SNS_ONLN); /* status is online & ready */
uptr->CMD &= ~CON_MSK; /* remove old CMD */
uptr->CMD |= (cmd & CON_MSK); /* save command */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd @%s INCH/NOP cmd CMD %08x chsa %04x cmd = %02x\n",
(CPUSTATUS & ONIPU)?"IPU":"CPU", uptr->CMD, chsa, cmd);
/* input is polled, so no start needed */
if (unit == 1) { /* doing output */
//11523 sim_activate(uptr, 250); /* start us off */
sim_activate_abs(uptr, 250); /* start us off */
} else {
sim_activate_abs(uptr, 250); /* start us off */
}
return SCPE_OK; /* no status change */
break;
default: /* invalid command */
break;
}
/* invalid command */
uptr->SNS |= SNS_CMDREJ; /* command rejected */
sim_debug(DEBUG_CMD, dptr,
"con_startcmd %04x: Invalid command %02x Sense %02x\n",
chan, cmd, uptr->SNS);
return SNS_CHNEND|SNS_DEVEND|STATUS_PCHK;
}
/* Handle output transfers for console */
t_stat con_srvo(UNIT *uptr) {
DEVICE *dptr = uptr->dptr;
uint16 chsa = GET_UADDR(uptr->CMD);
int unit = (uptr - con_unit); /* unit 0 is read, unit 1 is write */
int cmd = uptr->CMD & CON_MSK;
CHANP *chp = find_chanp_ptr(chsa); /* find the chanp pointer */
int len = chp->ccw_count; /* INCH command count */
uint32 mema = chp->ccw_addr; /* get inch or buffer addr */
uint32 tstart;
uint8 ch;
static uint32 dexp;
static int cnt = 0;
sim_debug(DEBUG_CMD, dptr,
"con_srvo enter CMD %08x chsa %04x cmd %02x iocla %06x cnt %04x\n",
uptr->CMD, chsa, cmd, chp->chan_caw, chp->ccw_count);
switch (cmd) {
case CON_INCH2: /* 0xf0 */ /* INCH command */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_srvo INCH unit %02x: CMD %08x cmd %02x incnt %02x u4 %02x inch %06x in2 %06x\n",
unit, uptr->CMD, cmd, con_data[unit].incnt, uptr->u4, mema, M[mema>>2]);
/* now call set_inch() function to write and test inch buffer addresses */
tstart = set_inch(uptr, mema, 1); /* new address & 1 entry */
if ((tstart == SCPE_MEM) || (tstart == SCPE_ARG)) { /* any error */
/* we have error, bail out */
uptr->SNS |= SNS_CMDREJ;
sim_debug(DEBUG_CMD, dptr,
"con_srvo INCH Error unit %02x: CMD %08x cmd %02x incnt %02x u4 %02x\n",
unit, uptr->CMD, cmd, con_data[unit].incnt, uptr->u4);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK);
break;
}
sim_debug(DEBUG_CMD, dptr,
"con_srvo INCH CMD %08x chsa %04x len %02x inch %06x in2 %06x\n",
uptr->CMD, chsa, len, mema, M[mema>>2]);
/* WARNING, if SNS_DEVEND is not set, diags fail by looping in CON diag */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* return OK */
break;
case CON_NOP: /* 0x03 */ /* NOP has do nothing */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_srvo NOP CMD %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* return OK */
break;
case CON_RWD: /* 0x37 */ /* TOF and write line */
case CON_WR: /* 0x01 */ /* Write command */
cnt = 0; /* zero count */
/*RTC*/ outbusy = 1; /* tell clock output waiting */
mema = chp->ccw_addr; /* get buffer addr */
/* Write to device */
while (chan_read_byte(chsa, &ch) == SCPE_OK) { /* get byte from memory */
/* HACK HACK HACK */
ch &= 0x7f; /* make 7 bit w/o parity */
dexp = dexp<<8; /* move up last chars */
dexp |= ch; /* insert new char */
sim_putchar(ch); /* output next char to device */
if (isprint(ch))
sim_debug(DEBUG_CMD, dptr,
"con_srvo write addr %06x chsa %04x cmd %02x byte %d = %02x [%c]\n",
mema, chsa, cmd, cnt, ch, ch);
else
sim_debug(DEBUG_CMD, dptr,
"con_srvo write addr %06x chsa %04x cmd %02x byte %d = %02x\n",
mema, chsa, cmd, cnt, ch);
mema = chp->ccw_addr; /* get next buffer addr */
cnt++; /* count chars output */
}
/* write is complete, post status */
sim_debug(DEBUG_CMD, dptr,
"con_srvo write CMD %08x chsa %04x cmd %02x complete\n",
uptr->CMD, chsa, cmd);
uptr->CMD &= LMASK; /* nothing left, command complete */
/*RTC*/ outbusy = 0; /* output done */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* done */
break;
}
return SCPE_OK;
}
/* Handle input transfers for console */
t_stat con_srvi(UNIT *uptr) {
DEVICE *dptr = uptr->dptr;
uint16 chsa = GET_UADDR(uptr->CMD);
int unit = (uptr - con_unit); /* unit 0 is read, unit 1 is write */
int cmd = uptr->CMD & CON_MSK;
CHANP *chp = find_chanp_ptr(chsa); /* find the chanp pointer */
int len = chp->ccw_count; /* INCH command count */
uint32 mema = chp->ccw_addr; /* get inch or buffer addr */
uint32 tstart;
uint8 ch;
t_stat r;
switch (cmd) {
case CON_INCH2: /* 0xf0 */ /* INCH command */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_srvi INCH unit %02x: CMD %08x cmd %02x incnt %02x u4 %02x inch %06x in2 %06x\n",
unit, uptr->CMD, cmd, con_data[unit].incnt, uptr->u4, mema, M[mema>>2]);
/* now call set_inch() function to write and test inch buffer addresses */
tstart = set_inch(uptr, mema, 1); /* new address & 1 entry */
if ((tstart == SCPE_MEM) || (tstart == SCPE_ARG)) { /* any error */
/* we have error, bail out */
uptr->SNS |= SNS_CMDREJ;
sim_debug(DEBUG_CMD, dptr,
"con_srvi INCH Error unit %02x: CMD %08x cmd %02x incnt %02x u4 %02x\n",
unit, uptr->CMD, cmd, con_data[unit].incnt, uptr->u4);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK);
break;
}
con_data[unit].incnt = 0; /* buffer empty */
uptr->u4 = 0; /* no I/O yet */
sim_debug(DEBUG_CMD, dptr,
"con_srvi INCH CMD %08x chsa %04x len %02x inch %06x in2 %06x\n",
uptr->CMD, chsa, len, mema, M[mema>>2]);
/* WARNING, if SNS_DEVEND is not set, diags fail by looping in CON diag */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* return OK */
/* drop through to poll input */
break;
case CON_NOP: /* 0x03 */ /* NOP has do nothing */
uptr->CMD &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, dptr,
"con_srvi NOP CMD %08x chsa %04x cmd = %02x\n", uptr->CMD, chsa, cmd);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* return OK */
/* drop through to poll input */
break;
case CON_ECHO: /* 0x0a */ /* read from device w/ECHO */
uptr->CMD |= CON_EKO; /* save echo status */
case CON_RD: /* 0x02 */ /* read from device */
case CON_RDBWD: /* 0x0c */ /* Read Backward */
if ((uptr->u4 != con_data[unit].incnt) || /* input empty */
(uptr->CMD & CON_INPUT)) { /* input waiting? */
ch = con_data[unit].ibuff[uptr->u4]; /* get char from read buffer */
if (isprint(ch))
sim_debug(DEBUG_IRQ, dptr,
"con_srvi readbuf unit %02x: CMD %08x read %02x [%c] incnt %02x u4 %02x len %02x\n",
unit, uptr->CMD, ch, ch, con_data[unit].incnt, uptr->u4, chp->ccw_count);
else
sim_debug(DEBUG_IRQ, dptr,
"con_srvi readbuf unit %02x: CMD %08x read %02x incnt %02x u4 %02x len %02x\n",
unit, uptr->CMD, ch, con_data[unit].incnt, uptr->u4, chp->ccw_count);
/* process any characters */
if (uptr->u4 != con_data[unit].incnt) { /* input available */
ch = con_data[unit].ibuff[uptr->u4]; /* get char from read buffer */
/* this fixes mpx1x time entry on startup */
if (uptr->CMD & CON_EKO) /* ECHO requested */
sim_putchar(ch); /* ECHO the char */
if (chan_write_byte(chsa, &ch)) { /* write byte to memory */
/* write error */
cmd = 0; /* no cmd now */
sim_debug(DEBUG_CMD, dptr,
"con_srvi write error unit %02x: CMD %08x read %02x u4 %02x ccw_count %02x\n",
unit, uptr->CMD, ch, uptr->u4, chp->ccw_count);
uptr->CMD &= ~CON_MSK; /* remove old CMD */
uptr->CMD &= ~CON_INPUT; /* input waiting? */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* we done */
break;
}
/* character accepted, bump buffer pointer */
uptr->u4++; /* next char position */
sim_debug(DEBUG_CMD, dptr,
"con_srvi write to mem unit %02x: CMD %08x read %02x u4 %02x incnt %02x\n",
unit, uptr->CMD, ch, uptr->u4, con_data[unit].incnt);
/* see if at end of buffer */
if (uptr->u4 >= (int32)sizeof(con_data[unit].ibuff))
uptr->u4 = 0; /* reset pointer */
/* user want more data? */
if ((test_write_byte_end(chsa)) == 0) {
sim_debug(DEBUG_CMD, dptr,
"con_srvi need more unit %02x CMD %08x u4 %02x ccw_count %02x incnt %02x\n",
unit, uptr->CMD, uptr->u4, chp->ccw_count, con_data[unit].incnt);
/* user wants more, look next time */
if (uptr->u4 == con_data[unit].incnt) { /* input empty */
uptr->CMD &= ~CON_INPUT; /* no input available */
}
break;
}
/* command is completed */
if (isprint(ch))
sim_debug(DEBUG_CMD, dptr,
"con_srvi read done unit %02x CMD %08x read %02x [%c] u4 %02x ccw_count %02x incnt %02x\n",
unit, uptr->CMD, ch, ch, uptr->u4, chp->ccw_count, con_data[unit].incnt);
else
sim_debug(DEBUG_CMD, dptr,
"con_srvi read done unit %02x CMD %08x read %02x u4 %02x ccw_count %02x incnt %02x\n",
unit, uptr->CMD, ch, uptr->u4, chp->ccw_count, con_data[unit].incnt);
cmd = 0; /* no cmd now */
uptr->CMD &= LMASK; /* nothing left, command complete */
if (uptr->u4 != con_data[unit].incnt) { /* input empty */
uptr->CMD |= CON_INPUT; /* input still available */
}
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* we done */
break;
}
break;
}
default:
break;
}
/* check for next input if reading or @@A sequence */
r = sim_poll_kbd(); /* poll for a char */
if (r & SCPE_KFLAG) { /* got a char */
ch = r & 0xff; /* drop any extra bits */
if ((uptr->CMD & CON_READ)) { /* looking for input? */
atbuf = 0; /* reset attention buffer */
uptr->CMD &= ~CON_ATAT; /* no @@A input */
if (ch == '@') { /* maybe for console int */
atbuf = (ch)<<8; /* start anew */
uptr->CMD |= CON_ATAT; /* show getting @ */
}
if (ch == '\n') /* convert newline */
ch = '\r'; /* make newline into carriage return */
if (isprint(ch))
sim_debug(DEBUG_CMD, dptr,
"con_srvi handle readch unit %02x: CMD %08x read %02x [%c] u4 %02x incnt %02x r %x\n",
unit, uptr->CMD, ch, ch, uptr->u4, con_data[unit].incnt, r);
else
sim_debug(DEBUG_CMD, dptr,
"con_srvi handle readch unit %02x: CMD %08x read %02x u4 %02x incnt %02x r %x\n",
unit, uptr->CMD, ch, uptr->u4, con_data[unit].incnt, r);
/* put char in buffer */
con_data[unit].ibuff[con_data[unit].incnt++] = ch;
/* see if count at max, if so reset to start */
if (con_data[unit].incnt >= sizeof(con_data[unit].ibuff))
con_data[unit].incnt = 0; /* reset buffer cnt */
uptr->CMD |= CON_INPUT; /* we have a char available */
if (isprint(ch))
sim_debug(DEBUG_CMD, dptr,
"con_srvi readch unit %02x: CMD %08x read %02x [%c] u4 %02x incnt %02x\n",
unit, uptr->CMD, ch, ch, uptr->u4, con_data[unit].incnt);
else
sim_debug(DEBUG_CMD, dptr,
"con_srvi readch unit %02x: CMD %08x read %02x u4 %02x incnt %02x\n",
unit, uptr->CMD, ch, uptr->u4, con_data[unit].incnt);
sim_activate(uptr, 500); /* do this again */
return SCPE_OK;
}
/* not looking for input, look for attn or wakeup */
if (ch == '?') {
/* set ring bit? */
set_devwake(chsa, SNS_ATTN|SNS_DEVEND|SNS_CHNEND); /* tell user */
}
/* not wanting input, but we have a char, look for @@A */
if (uptr->CMD & CON_ATAT) { /* looking for @@A */
/* we have at least one @, look for another */
if (ch == '@' || ch == 'A' || ch == 'a') {
uint8 cc = ch;
if (cc == 'a')
cc = 'A'; /* make uppercase */
sim_putchar(ch); /* ECHO the char */
atbuf = (atbuf|cc)<<8; /* merge new char */
if (atbuf == 0x40404100) {
attention_trap = CONSOLEATN_TRAP; /* console attn (0xb4) */
atbuf = 0; /* reset attention buffer */
uptr->CMD &= ~CON_ATAT; /* no @@A input */
sim_putchar('\r'); /* return char */
sim_putchar('\n'); /* line feed char */
sim_debug(DEBUG_CMD, dptr,
"con_srvi unit %02x: CMD %08x read @@A Console Trap\n", unit, uptr->CMD);
uptr->u4 = 0; /* no input count */
con_data[unit].incnt = 0; /* no input data */
}
sim_activate(uptr, 500); /* do this again */
return SCPE_OK;
}
/* char not for us, so keep looking */
atbuf = 0; /* reset attention buffer */
uptr->CMD &= ~CON_ATAT; /* no @@A input */
}
/* not looking for input, look for attn or wakeup */
if (ch == '@') {
atbuf = (atbuf|ch)<<8; /* merge in char */
uptr->CMD |= CON_ATAT; /* show getting @ */
sim_putchar(ch); /* ECHO the char */
}
/* assume it is for next read request, so save it */
/* see if count at max, if so reset to start */
if (con_data[unit].incnt >= sizeof(con_data[unit].ibuff))
con_data[unit].incnt = 0; /* reset buffer cnt */
/* put char in buffer */
con_data[unit].ibuff[con_data[unit].incnt++] = ch;
uptr->CMD |= CON_INPUT; /* we have a char available */
if (isprint(ch))
sim_debug(DEBUG_CMD, dptr,
"con_srvi readch2 unit %02x: CMD %08x read %02x [%c] u4 %02x incnt %02x r %x\n",
unit, uptr->CMD, ch, ch, uptr->u4, con_data[unit].incnt, r);
else
sim_debug(DEBUG_CMD, dptr,
"con_srvi readch2 unit %02x: CMD %08x read %02x u4 %02x incnt %02x r %x\n",
unit, uptr->CMD, ch, uptr->u4, con_data[unit].incnt, r);
}
sim_clock_coschedule(uptr, 1000); /* continue poll */
return SCPE_OK;
}
t_stat con_reset(DEVICE *dptr) {
tmxr_set_console_units (&con_unit[0], &con_unit[1]);
return SCPE_OK;
}
/* Handle rschnlio cmds for console */
t_stat con_rschnlio(UNIT *uptr) {
uint16 chsa = GET_UADDR(uptr->CMD);
int cmd = uptr->CMD & CON_MSK;
con_ini(uptr, 0); /* reset the unit */
sim_debug(DEBUG_EXP, &con_dev, "con_rschnl chsa %04x cmd = %02x\n", chsa, cmd);
return SCPE_OK;
}
/* Handle haltio transfers for console */
t_stat con_haltio(UNIT *uptr) {
uint16 chsa = GET_UADDR(uptr->CMD);
int cmd = uptr->CMD & CON_MSK;
int unit = (uptr - con_unit); /* unit # 0 is read, 1 is write */
CHANP *chp = find_chanp_ptr(chsa); /* find the chanp pointer */
sim_debug(DEBUG_EXP, &con_dev,
"con_haltio enter chsa %04x cmd = %02x\n", chsa, cmd);
/* terminate any input command */
/* UTX wants SLI bit, but no unit exception */
/* status must not have an error bit set */
/* otherwise, UTX will panic with "bad status" */
if ((uptr->CMD & CON_MSK) != 0) { /* is unit busy */
sim_debug(DEBUG_CMD, &con_dev,
"con_haltio HIO chsa %04x cmd = %02x ccw_count %02x\n",
chsa, cmd, chp->ccw_count);
sim_cancel(uptr); /* stop timer */
/* stop any I/O and post status and return error status */
chp->ccw_count = 0; /* zero the count */
chp->ccw_flags &= ~(FLAG_DC|FLAG_CC); /* reset chaining bits */
uptr->CMD &= LMASK; /* make non-busy */
uptr->u4 = 0; /* no I/O yet */
con_data[unit].incnt = 0; /* no input data */
uptr->SNS = SNS_RDY|SNS_ONLN; /* status is online & ready */
sim_debug(DEBUG_CMD, &con_dev,
"con_haltio HIO I/O stop chsa %04x cmd = %02x\n", chsa, cmd);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* force end */
return CC2BIT | SCPE_IOERR; /* tell chan code to post status */
}
uptr->CMD &= LMASK; /* make non-busy */
uptr->SNS = SNS_RDY|SNS_ONLN; /* status is online & ready */
sim_debug(DEBUG_CMD, &con_dev,
"con_haltio HIO not busy chsa %04x cmd = %02x ccw_count %02x\n",
chsa, cmd, chp->ccw_count);
return CC1BIT | SCPE_OK; /* not busy */
}
#endif /* #if NUM_DEVS_CON > 0 */
Reference in a new issue View git blame Copy permalink