| /* i7090_cdr.c: IBM 7090 Card Read. | |
| Copyright (c) 2005-2016, Richard Cornwell | |
| 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 | |
| RICHARD CORNWELL 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 card reader. | |
| */ | |
| #include "i7090_defs.h" | |
| #include "sim_card.h" | |
| #ifdef NUM_DEVS_CDR | |
| #define UNIT_CDR UNIT_ATTABLE | UNIT_RO | UNIT_DISABLE | MODE_026 | |
| /* std devices. data structures | |
| chan_dev Channel device descriptor | |
| chan_unit Channel unit descriptor | |
| chan_reg Channel register list | |
| chan_mod Channel modifiers list | |
| */ | |
| /* Device status information stored in u5 */ | |
| #define CDRSTA_EOR 002000 /* Hit end of record */ | |
| #define CDRPOSMASK 0770000 /* Bit Mask to retrive drum position */ | |
| #define CDRPOSSHIFT 12 | |
| t_stat cdr_srv(UNIT *); | |
| t_stat cdr_boot(int32, DEVICE *); | |
| t_stat cdr_reset(DEVICE *); | |
| t_stat cdr_attach(UNIT *, CONST char *); | |
| t_stat cdr_detach(UNIT *); | |
| t_stat cdr_help (FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, | |
| const char *cptr); | |
| const char *cdr_description (DEVICE *dptr); | |
| UNIT cdr_unit[] = { | |
| #if NUM_DEVS_CDR > 1 | |
| {UDATA(&cdr_srv, UNIT_S_CHAN(CHAN_A) | UNIT_CDR, 0), 3000}, /* A */ | |
| #endif | |
| #if NUM_DEVS_CDR > 2 | |
| {UDATA(&cdr_srv, UNIT_S_CHAN(CHAN_C) | UNIT_CDR, 0), 3000}, /* B */ | |
| #endif | |
| #if NUM_DEVS_CDR > 3 | |
| {UDATA(&cdr_srv, UNIT_S_CHAN(CHAN_E) | UNIT_CDR | UNIT_DIS, 0), 3000}, /* C */ | |
| #endif | |
| {UDATA(&cdr_srv, UNIT_S_CHAN(CHAN_CHPIO) | UNIT_CDR, 0), 3000}, /* D */ | |
| }; | |
| MTAB cdr_mod[] = { | |
| {MTAB_XTD | MTAB_VUN, 0, "FORMAT", "FORMAT", | |
| &sim_card_set_fmt, &sim_card_show_fmt, NULL}, | |
| #if NUM_CHAN != 1 | |
| {MTAB_XTD | MTAB_VUN | MTAB_VALR, 0, "CHAN", "CHAN", &set_chan, | |
| &get_chan, NULL}, | |
| #endif | |
| {0} | |
| }; | |
| DEVICE cdr_dev = { | |
| "CDR", cdr_unit, NULL, cdr_mod, | |
| NUM_DEVS_CDR, 8, 15, 1, 8, 36, | |
| NULL, NULL, &cdr_reset, &cdr_boot, &cdr_attach, &cdr_detach, | |
| &cdr_dib, DEV_DISABLE | DEV_DEBUG | DEV_CARD, 0, crd_debug, | |
| NULL, NULL, &cdr_help, NULL, NULL, &cdr_description | |
| }; | |
| uint32 cdr_cmd(UNIT * uptr, uint16 cmd, uint16 dev) | |
| { | |
| int chan = UNIT_G_CHAN(uptr->flags); | |
| if ((uptr->flags & UNIT_ATT) != 0 && cmd == IO_RDS) { | |
| int u = (uptr - cdr_unit); | |
| /* Start device */ | |
| if ((uptr->u5 & URCSTA_CMD) == 0) { | |
| if ((uptr->u5 & (URCSTA_ON | URCSTA_IDLE)) == | |
| (URCSTA_ON | URCSTA_IDLE) && (uptr->wait <= 60)) { | |
| uptr->wait += 100; /* Wait for next latch point */ | |
| } else | |
| uptr->wait = 75; /* Startup delay */ | |
| uptr->u5 |= URCSTA_READ | URCSTA_CMD | CDRPOSMASK; | |
| chan_set_sel(chan, 0); | |
| chan_clear_status(chan); | |
| sim_activate(uptr, us_to_ticks(1000)); /* activate */ | |
| sim_debug(DEBUG_CMD, &cdr_dev, "RDS unit=%d\n", u); | |
| return SCPE_OK; | |
| } | |
| return SCPE_BUSY; | |
| } | |
| chan_set_attn(chan); | |
| return SCPE_NODEV; | |
| } | |
| t_stat cdr_srv(UNIT * uptr) | |
| { | |
| int chan = UNIT_G_CHAN(uptr->flags); | |
| int u = (uptr - cdr_unit); | |
| int pos, col, b; | |
| uint16 *image = (uint16 *)(uptr->up7); | |
| uint16 bit; | |
| t_uint64 mask, wd; | |
| /* Channel has disconnected, abort current read. */ | |
| if (uptr->u5 & URCSTA_CMD && chan_stat(chan, DEV_DISCO)) { | |
| uptr->u5 &= ~(URCSTA_READ | URCSTA_CMD); | |
| uptr->u5 |= CDRPOSMASK; | |
| chan_clear(chan, DEV_WEOR | DEV_SEL); | |
| sim_debug(DEBUG_CHAN, &cdr_dev, "unit=%d disconnecting\n", u); | |
| } | |
| /* Check to see if we have timed out */ | |
| if (uptr->wait != 0) { | |
| /* If at end of record and channel is still active, do another read */ | |
| if (uptr->wait == 30 | |
| && ((uptr->u5 & (URCSTA_CMD|URCSTA_IDLE|URCSTA_READ|URCSTA_ON)) | |
| == (URCSTA_CMD | URCSTA_IDLE | URCSTA_ON)) | |
| && chan_test(chan, STA_ACTIVE)) { | |
| uptr->u5 |= URCSTA_READ; | |
| sim_debug(DEBUG_CHAN, &cdr_dev, "unit=%d restarting\n", u); | |
| } | |
| uptr->wait--; | |
| sim_activate(uptr, us_to_ticks(1000)); /* activate */ | |
| return SCPE_OK; | |
| } | |
| /* If no read request, go to idle mode */ | |
| if ((uptr->u5 & URCSTA_READ) == 0) { | |
| if ((uptr->u5 & URCSTA_EOF) || (uptr->u5 & URCSTA_IDLE)) { | |
| uptr->u5 &= ~(URCSTA_ON | URCSTA_IDLE); /* Turn motor off */ | |
| } else { | |
| uptr->wait = 85; /* Delay 85ms */ | |
| uptr->u5 |= URCSTA_IDLE; /* Go idle */ | |
| sim_activate(uptr, us_to_ticks(1000)); | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Motor is up to speed now */ | |
| uptr->u5 |= URCSTA_ON; | |
| uptr->u5 &= ~URCSTA_IDLE; | |
| pos = (uptr->u5 & CDRPOSMASK) >> CDRPOSSHIFT; | |
| if (pos == (CDRPOSMASK >> CDRPOSSHIFT)) { | |
| switch (sim_read_card(uptr, image)) { | |
| case CDSE_EMPTY: | |
| case CDSE_ERROR: | |
| sim_debug(DEBUG_EXP, &cdr_dev, "unit=%d Setting ATTN\n", u); | |
| chan_set_error(chan); | |
| chan_set_attn(chan); | |
| uptr->u5 &= ~URCSTA_READ; | |
| sim_activate(uptr, us_to_ticks(1000)); | |
| return SCPE_OK; | |
| case CDSE_EOF: | |
| sim_debug(DEBUG_EXP, &cdr_dev, "unit=%d EOF\n", u); | |
| chan_set_eof(chan); | |
| chan_set_attn(chan); | |
| uptr->u5 &= ~URCSTA_READ; | |
| sim_activate(uptr, us_to_ticks(1000)); | |
| return SCPE_OK; | |
| case CDSE_OK: | |
| break; | |
| } | |
| pos = 0; | |
| } | |
| /* Check if everything read in, if so return EOR now */ | |
| if (pos == 24) { | |
| sim_debug(DEBUG_CHAN, &cdr_dev, "unit=%d set EOR\n", u); | |
| chan_set(chan, DEV_REOR); | |
| uptr->u5 &= ~URCSTA_READ; | |
| uptr->u5 |= CDRSTA_EOR | CDRPOSMASK; | |
| uptr->wait = 86; | |
| sim_activate(uptr, us_to_ticks(1000)); | |
| return SCPE_OK; | |
| } | |
| /* Bit flip into read buffer */ | |
| bit = 1 << (pos / 2); | |
| mask = 1; | |
| wd = 0; | |
| b = (pos & 1)?36:0; | |
| for (col = 35; col >= 0; mask <<= 1) { | |
| if (image[col-- + b] & bit) | |
| wd |= mask; | |
| } | |
| switch (chan_write (chan, &wd,/* (pos == 23) ? DEV_REOR :*/ 0)) { | |
| case DATA_OK: | |
| sim_debug(DEBUG_DATA, &cdr_dev, "unit=%d read row %d %012llo\n", u, | |
| pos, wd); | |
| pos++; | |
| uptr->u5 &= ~CDRPOSMASK; | |
| uptr->u5 |= pos << CDRPOSSHIFT; | |
| uptr->wait = 0; | |
| sim_activate(uptr, (pos & 1) ? us_to_ticks(300) : us_to_ticks(8000)); | |
| return SCPE_OK; | |
| case END_RECORD: | |
| sim_debug(DEBUG_CHAN, &cdr_dev, "unit=%d got EOR\n", u); | |
| uptr->u5 &= ~CDRPOSMASK; | |
| uptr->u5 |= 24 << CDRPOSSHIFT; | |
| uptr->wait = 8 * (12 - (pos / 2)) /*+ 86*/; | |
| break; | |
| case TIME_ERROR: | |
| sim_debug(DEBUG_EXP, &cdr_dev, "unit=%d no data\n", u); | |
| uptr->u5 &= ~CDRPOSMASK; | |
| uptr->u5 |= 24 << CDRPOSSHIFT; | |
| uptr->wait = 8 * (12 - (pos / 2)) /*+ 85*/; | |
| break; | |
| } | |
| sim_activate(uptr, us_to_ticks(1000)); | |
| return SCPE_OK; | |
| } | |
| /* Boot from given device */ | |
| t_stat | |
| cdr_boot(int32 unit_num, DEVICE * dptr) | |
| { | |
| UNIT *uptr = &dptr->units[unit_num]; | |
| int chan = UNIT_G_CHAN(uptr->flags); | |
| t_stat r; | |
| int pos; | |
| uint16 *image = (uint16 *)(uptr->up7); | |
| if ((uptr->flags & UNIT_ATT) == 0) | |
| return SCPE_UNATT; /* attached? */ | |
| uptr->u5 = 0; | |
| /* Init for a read */ | |
| if (cdr_cmd(uptr, IO_RDS, cdr_dib.addr) != SCPE_OK) | |
| return STOP_IONRDY; | |
| r = sim_read_card(uptr, image); | |
| if (r != SCPE_OK) | |
| return r; | |
| /* Copy first three records. */ | |
| uptr->u5 &= ~CDRPOSMASK; | |
| for(pos = 0; pos <3; pos++) { | |
| uint16 bit = 1 << (pos / 2); | |
| t_uint64 mask = 1; | |
| int b = (pos & 1)?36:0; | |
| int col; | |
| if (pos == 2 && chan == 0) | |
| break; | |
| M[pos] = 0; | |
| for (col = 35; col >= 0; mask <<= 1) { | |
| if (image[col-- + b] & bit) | |
| M[pos] |= mask; | |
| } | |
| sim_debug(DEBUG_DATA, &cdr_dev, "boot read row %d %012llo\n", | |
| pos, M[pos]); | |
| } | |
| uptr->u5 |= pos << CDRPOSSHIFT; | |
| /* Make sure channel is set to start reading rest. */ | |
| return chan_boot(unit_num, dptr); | |
| } | |
| t_stat | |
| cdr_reset(DEVICE * dptr) | |
| { | |
| return SCPE_OK; | |
| } | |
| t_stat | |
| cdr_attach(UNIT * uptr, CONST char *file) | |
| { | |
| t_stat r; | |
| if ((r = sim_card_attach(uptr, file)) != SCPE_OK) | |
| return r; | |
| if (uptr->up7 == 0) { | |
| uptr->up7 = malloc(sizeof(uint16)*80); | |
| uptr->u5 = 0; | |
| uptr->u4 = 0; | |
| } | |
| return SCPE_OK; | |
| } | |
| t_stat | |
| cdr_detach(UNIT * uptr) | |
| { | |
| if (uptr->up7 != 0) | |
| free(uptr->up7); | |
| uptr->up7 = 0; | |
| return sim_card_detach(uptr); | |
| } | |
| t_stat | |
| cdr_help(FILE *st, DEVICE *dptr, UNIT *uptr, int32 flag, const char *cptr) | |
| { | |
| const char *cpu = cpu_description(&cpu_dev); | |
| fprintf (st, "%s\n\n", cdr_description(dptr)); | |
| #if NUM_DEVS_CDR > 3 | |
| fprintf (st, "The %s supports up to four card readers\n\n", cpu); | |
| #elif NUM_DEVS_CDR > 2 | |
| fprintf (st, "The %s supports up to three card readers\n\n", cpu); | |
| #elif NUM_DEVS_CDR > 1 | |
| fprintf (st, "The %s supports up to two card readers\n\n", cpu); | |
| #elif NUM_DEVS_CDR > 0 | |
| fprintf (st, "The %s supports one card reader\n\n", cpu); | |
| #endif | |
| help_set_chan_type(st, dptr, "Card readers"); | |
| fprint_set_help(st, dptr); | |
| fprint_show_help(st, dptr); | |
| fprintf (st, "\n"); | |
| sim_card_attach_help(st, dptr, uptr, flag, cptr); | |
| return SCPE_OK; | |
| } | |
| const char * | |
| cdr_description(DEVICE *dptr) | |
| { | |
| return "711 Card Reader"; | |
| } | |
| #endif |