folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
simh-testsetgenerator/SEL32/sel32_mfp.c
Jim Bevier 4e159a04ed SEL32: Add IPU device support using pthreads on Linux and Windows. 
SEL32: Update makefile and SEL32.vsproj file to add IPU device.
SEL32: Update README.md file.
SEL32: Do a general code cleanup.
2023-02-07 20:30:54 -05:00

359 lines
16 KiB
C
Raw Blame History

/* sel32_mfp.c: SEL-32 Model 8002 MFP processor controller
Copyright (c) 2018-2023, James C. Bevier
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 channel is the interrupt fielder for all of the MFP sub channels. It's
channel address is 7600. This code handles the INCH command for the MFP
devices and controls the status FIFO for the mfp devices on interrupts and
TIO instructions..
Possible devices:
The f8iop communication controller (TY76A0), (TY76B0), (TY76C0)
The ctiop console communications controller (CT76FC & CT76FD)
The lpiop line printer controller (LP76F8), (LP76F9)
The scsi SCSI disk controller (DM7600), (DM7640)
*/
#include "sel32_defs.h"
#if NUM_DEVS_MFP > 0
#define UNIT_MFP UNIT_IDLE | UNIT_DISABLE
/* forward definitions */
t_stat mfp_preio(UNIT *uptr, uint16 chan);
t_stat mfp_startcmd(UNIT *uptr, uint16 chan, uint8 cmd);
void mfp_ini(UNIT *uptr, t_bool f);
t_stat mfp_rschnlio(UNIT *uptr);
t_stat mfp_srv(UNIT *uptr);
t_stat mfp_reset(DEVICE *dptr);
t_stat mfp_help(FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr);
const char *mfp_desc(DEVICE *dptr);
/* Held in u3 is the device command and status */
#define MFP_INCH 0x00 /* Initialize channel command */
#define MFP_INCH2 0xf0 /* Initialize channel command after start */
#define MFP_NOP 0x03 /* NOP command */
#define MFP_SID 0x80 /* MFP status command */
#define MFP_MSK 0xff /* Command mask */
/* Status held in u3 */
/* controller/unit address in upper 16 bits */
#define CON_INPUT 0x100 /* Input ready for unit */
#define CON_CR 0x200 /* Output at beginning of line */
#define CON_REQ 0x400 /* Request key pressed */
#define CON_EKO 0x800 /* Echo input character */
#define CON_OUTPUT 0x1000 /* Output ready for unit */
#define CON_READ 0x2000 /* Read mode selected */
/* not used u4 */
/* 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 */
/* std devices. data structures
mfp_dev Console device descriptor
mfp_unit Console unit descriptor
mfp_reg Console register list
mfp_mod Console modifiers list
*/
struct _mfp_data
{
uint8 ibuff[145]; /* Input line buffer */
uint8 incnt; /* char count */
}
mfp_data[NUM_UNITS_MFP];
/* channel program information */
CHANP mfp_chp[NUM_UNITS_MFP] = {0};
MTAB mfp_mod[] = {
{MTAB_XTD | MTAB_VUN | MTAB_VALR, 0, "DEV", "DEV",
&set_dev_addr, &show_dev_addr, NULL, "Controller Channel address"},
{0}
};
UNIT mfp_unit[] = {
{UDATA(&mfp_srv, UNIT_MFP, 0), 0, UNIT_ADDR(0x7600)}, /* Channel controller */
};
//DIB mfp_dib = {NULL, mfp_startcmd, NULL, NULL, NULL, mfp_ini, mfp_unit, mfp_chp, NUM_UNITS_MFP, 0xff, 0x7600,0,0,0};
DIB mfp_dib = {
mfp_preio, /* t_stat (*pre_io)(UNIT *uptr, uint16 chan)*/ /* Pre Start I/O */
mfp_startcmd, /* t_stat (*start_cmd)(UNIT *uptr, uint16 chan, uint8 cmd)*/ /* Start command */
NULL, /* t_stat (*halt_io)(UNIT *uptr) */ /* Halt I/O HIO */
NULL, /* t_stat (*stop_io)(UNIT *uptr) */ /* Stop I/O HIO */
NULL, /* t_stat (*test_io)(UNIT *uptr) */ /* Test I/O TIO */
NULL, /* t_stat (*rsctl_io)(UNIT *uptr) */ /* Reset Controller */
mfp_rschnlio, /* t_stat (*rschnl_io)(UNIT *uptr) */ /* Reset Channel */
NULL, /* t_stat (*iocl_io)(CHANP *chp, int32 tic_ok)) */ /* Process IOCL */
mfp_ini, /* void (*dev_ini)(UNIT *, t_bool) */ /* init function */
mfp_unit, /* UNIT* units */ /* Pointer to units structure */
mfp_chp, /* CHANP* chan_prg */ /* Pointer to chan_prg structure */
NULL, /* IOCLQ *ioclq_ptr */ /* IOCL entries, 1 per UNIT */
NUM_UNITS_MFP, /* uint8 numunits */ /* number of units defined */
0xff, /* uint8 mask */ /* 16 devices - device mask */
0x7600, /* 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 mfp_dev = {
"MFP", mfp_unit, NULL, mfp_mod,
NUM_UNITS_MFP, 8, 15, 1, 8, 8,
NULL, NULL, &mfp_reset, /* examine, deposit, reset */
NULL, NULL, NULL, /* boot, attach, detach */
/* dib ptr, dev flags, debug flags, debug */
&mfp_dib, DEV_CHAN|DEV_DIS|DEV_DISABLE|DEV_DEBUG, 0, dev_debug,
};
/* MFP controller routines */
/* initialize the console chan/unit */
void mfp_ini(UNIT *uptr, t_bool f)
{
int unit = (uptr - mfp_unit); /* unit 0 */
DEVICE *dptr = &mfp_dev; /* one and only dummy device */
mfp_data[unit].incnt = 0; /* no input data */
uptr->u5 = SNS_RDY|SNS_ONLN; /* status is online & ready */
sim_cancel(uptr); /* stop any timers */
sim_debug(DEBUG_CMD, &mfp_dev,
"MFP init device %s controller/device %04x SNS %08x\n",
dptr->name, GET_UADDR(uptr->u3), uptr->u5);
}
/* handle rschnlio cmds for disk */
t_stat mfp_rschnlio(UNIT *uptr) {
DEVICE *dptr = get_dev(uptr);
uint16 chsa = GET_UADDR(uptr->u3);
int cmd = uptr->u3 & MFP_MSK;
sim_debug(DEBUG_EXP, dptr,
"mfp_rschnl chsa %04x cmd = %02x\n", chsa, cmd);
mfp_ini(uptr, 0); /* reset the unit */
return SCPE_OK;
}
/* start an mfp operation */
t_stat mfp_preio(UNIT *uptr, uint16 chan) {
DEVICE *dptr = get_dev(uptr);
int unit = (uptr - dptr->units);
uint16 chsa = GET_UADDR(uptr->u3);
sim_debug(DEBUG_CMD, dptr, "mfp_preio CMD %08x unit %02x chsa %04x\n",
uptr->u3, unit, chsa);
if ((uptr->u3 & MFP_MSK) != 0) { /* is unit busy */
sim_debug(DEBUG_CMD, dptr,
"mfp_preio unit %02x chsa %04x BUSY\n", unit, chsa);
return SNS_BSY; /* yes, return busy */
}
sim_debug(DEBUG_CMD, dptr, "mfp_preio unit %02x chsa %04x OK\n", unit, chsa);
return SCPE_OK; /* good to go */
}
/* start an I/O operation */
t_stat mfp_startcmd(UNIT *uptr, uint16 chan, uint8 cmd)
{
sim_debug(DEBUG_CMD, &mfp_dev,
"MFP startcmd %02x controller/device %04x\n",
cmd, GET_UADDR(uptr->u3));
if ((uptr->u3 & MFP_MSK) != 0) /* is unit busy */
return SNS_BSY; /* yes, return busy */
/* process the commands */
switch (cmd & 0xFF) {
/* UTX uses the INCH cmd to detect the MFP or MFP */
/* MFP has INCH cmd of 0, while MFP uses 0x80 */
case MFP_INCH: /* INCH command */
uptr->u5 = SNS_RDY|SNS_ONLN; /* status is online & ready */
uptr->u3 &= LMASK; /* leave only chsa */
sim_debug(DEBUG_CMD, &mfp_dev,
"mfp_startcmd %04x: Cmd INCH iptr %06x INCHa %06x\n",
chan, mfp_chp[0].ccw_addr, /* set inch buffer addr */
mfp_chp[0].chan_inch_addr); /* set inch buffer addr */
mfp_chp[0].chan_inch_addr = mfp_chp[0].ccw_addr; /* set inch buffer addr */
mfp_chp[0].base_inch_addr = mfp_chp[0].ccw_addr; /* set inch buffer addr */
//??? mfp_chp[0].max_inch_addr = mfp_chp[0].ccw_addr + (127 * 8); /* set last inch buffer addr */
/* MFP manual says it uses 128 dbl wds (256 wds) but diag aborts if gtr than 1 dbl wd */
mfp_chp[0].max_inch_addr = mfp_chp[0].ccw_addr; /* set last inch buffer addr */
uptr->u3 |= MFP_INCH2; /* save INCH command as 0xf0 */
sim_activate(uptr, 40); /* go on */
return 0; /* no status change */
break;
case MFP_NOP: /* NOP command */
sim_debug(DEBUG_CMD, &mfp_dev, "mfp_startcmd %04x: Cmd NOP\n", chan);
uptr->u5 = SNS_RDY|SNS_ONLN; /* status is online & ready */
uptr->u3 &= LMASK; /* leave only chsa */
uptr->u3 |= (cmd & MFP_MSK); /* save NOP command */
sim_activate(uptr, 40); /* TRY 07-13-19 */
return 0; /* no status change */
break;
case MFP_SID: /* status ID command */
sim_debug(DEBUG_CMD, &mfp_dev, "mfp_startcmd %04x: Cmd SID\n", chan);
uptr->u5 = SNS_RDY|SNS_ONLN; /* status is online & ready */
uptr->u3 &= LMASK; /* leave only chsa */
uptr->u3 |= (cmd & MFP_MSK); /* save SID command */
sim_activate(uptr, 40); /* TRY 07-13-19 */
return 0; /* no status change */
break;
default: /* invalid command */
uptr->u5 |= SNS_CMDREJ; /* command rejected */
sim_debug(DEBUG_CMD, &mfp_dev, "mfp_startcmd %04x: Cmd Invalid %02x status %02x\n",
chan, cmd, uptr->u5);
uptr->u3 &= LMASK; /* leave only chsa */
uptr->u3 |= (cmd & MFP_MSK); /* save command */
sim_activate(uptr, 40); /* force interrupt */
return 0; /* no status change */
break;
}
return SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK; /* not reachable for now */
}
/* Handle transfers for other sub-channels on MFP */
t_stat mfp_srv(UNIT *uptr)
{
uint16 chsa = GET_UADDR(uptr->u3);
int cmd = uptr->u3 & MFP_MSK;
CHANP *chp = &mfp_chp[0]; /* find the chanp pointer */
uint32 mema = chp->ccw_addr; /* get inch or buffer addr */
uint32 tstart;
/* test for NOP or INCH cmds */
if ((cmd != MFP_NOP) && (cmd != MFP_INCH2) && (cmd != MFP_SID)) { /* NOP, SID or INCH */
uptr->u3 &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, &mfp_dev,
"mfp_srv Unknown cmd %02x chan %02x: chnend|devend|unitexp\n", cmd, chsa);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND|SNS_UNITEXP); /* done */
return SCPE_OK;
} else
if (cmd == MFP_NOP) { /* NOP do nothing */
uptr->u3 &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, &mfp_dev, "mfp_srv NOP chan %02x: chnend|devend\n", chsa);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* done */
return SCPE_OK;
} else
/* 3 status wds are to be returned */
/* Wd 1 MMXXXXXX board model # assume 00 00 08 02*/
/* Wd 2 MMXXXXXX board firmware model # assume 00 00 08 02*/
/* Wd 3 MMXXXXXX board firmware revision # assume 00 00 00 14*/
if (cmd == MFP_SID) { /* send 12 byte Status ID data */
uint8 ch;
/* Word 0 */ /* board mod 4324724 = 0x0041fd74 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 0 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 1 */
ch = 0x81;
chan_write_byte(chsa, &ch); /* write byte 2 */
ch = 0x02;
chan_write_byte(chsa, &ch); /* write byte 3 */
/* Word 1 */ /* firmware 4407519 = 0x004340df */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 4 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 5 */
ch = 0x80;
chan_write_byte(chsa, &ch); /* write byte 6 */
ch = 0x02;
chan_write_byte(chsa, &ch); /* write byte 7 */
/* Word 2 */ /* firmware rev 4259588 = 0x0040ff04 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 8 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 9 */
ch = 0x00;
chan_write_byte(chsa, &ch); /* write byte 10 */
ch = 0x14;
chan_write_byte(chsa, &ch); /* write byte 11 */
uptr->u3 &= LMASK; /* nothing left, command complete */
sim_debug(DEBUG_CMD, &mfp_dev, "mfp_srv SID chan %02x: chnend|devend\n", chsa);
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* done */
return SCPE_OK;
} else
/* test for INCH cmd */
if (cmd == MFP_INCH2) { /* INCH */
sim_debug(DEBUG_CMD, &mfp_dev,
"mfp_srv starting INCH %06x cmd, chsa %04x MemBuf %06x cnt %04x\n",
mema, chsa, chp->ccw_addr, chp->ccw_count);
/* now call set_inch() function to write and test inch buffer addresses */
/* the chp->ccw_addr location contains the inch address */
/* 1-256 wd buffer is provided for 128 status dbl words */
///?? tstart = set_inch(uptr, mema, 128); /* new address of 128 entries */
tstart = set_inch(uptr, mema, 1); /* new address of 1 entrie */
if ((tstart == SCPE_MEM) || (tstart == SCPE_ARG)) { /* any error */
/* we have error, bail out */
uptr->u5 |= SNS_CMDREJ;
uptr->u3 &= LMASK; /* nothing left, command complete */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND|SNS_UNITCHK);
return SCPE_OK;
}
uptr->u3 &= LMASK; /* clear the cmd */
chan_end(chsa, SNS_CHNEND|SNS_DEVEND); /* we are done dev|chan end */
}
return SCPE_OK;
}
t_stat mfp_reset(DEVICE *dptr)
{
/* add reset code here */
return SCPE_OK;
}
/* sho help mfp */
t_stat mfp_help(FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, CONST char *cptr)
{
fprintf(st, "SEL-32 MFP Model 8002 Channel Controller at 0x7600\r\n");
fprintf(st, "The MFP fields all interrupts and status posting\r\n");
fprintf(st, "for each of the controllers on the system.\r\n");
fprintf(st, "Nothing can be configured for this Channel.\r\n");
return SCPE_OK;
}
const char *mfp_desc(DEVICE *dptr)
{
return("SEL-32 MFP Model 8002 Channel Controller @ 0x7600");
}
#endif
Reference in a new issue View git blame Copy permalink