| /* pdp11_rp.c - RP04/05/06/07 RM02/03/05/80 Massbus disk controller | |
| Copyright (c) 1993-2008, Robert M Supnik | |
| 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 | |
| ROBERT M SUPNIK 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. | |
| Except as contained in this notice, the name of Robert M Supnik shall not be | |
| used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| rp RH/RP/RM moving head disks | |
| 17-May-07 RMS CS1 DVA resides in device, not MBA | |
| 21-Nov-05 RMS Enable/disable device also enables/disables Massbus adapter | |
| 12-Nov-05 RMS Fixed DriveClear, does not clear disk address | |
| 16-Aug-05 RMS Fixed C++ declaration and cast problems | |
| 18-Mar-05 RMS Added attached test to detach routine | |
| 12-Sep-04 RMS Cloned from pdp11_rp.c | |
| Note: The VMS driver and the RP controller documentation state that | |
| ER2 = offset 8 | |
| SN = offset 12 | |
| But the TOPS-10 and TOPS-20 drivers, and the RP schematics state that | |
| SN = offset 8 | |
| ER2 = offset 12 | |
| The simulation follows the schematics. The VMS drivers defines but does | |
| not use these offsets, and the error logger follows the schematics. | |
| */ | |
| #if defined (VM_PDP10) | |
| #error "PDP-10 uses pdp10_rp.c!" | |
| #elif defined (VM_PDP11) | |
| #include "pdp11_defs.h" | |
| #define INIT_DTYPE RM03_DTYPE | |
| #define INIT_SIZE RM03_SIZE | |
| #elif defined (VM_VAX) | |
| #include "vax_defs.h" | |
| #define INIT_DTYPE RP06_DTYPE | |
| #define INIT_SIZE RP06_SIZE | |
| #define DMASK 0xFFFF | |
| #if (!UNIBUS) | |
| #error "Qbus not supported!" | |
| #endif | |
| #endif | |
| #include <math.h> | |
| #define RP_CTRL 0 /* ctrl is RP */ | |
| #define RM_CTRL 1 /* ctrl is RM */ | |
| #define RP_NUMDR 8 /* #drives */ | |
| #define RP_NUMWD 256 /* words/sector */ | |
| #define RP_MAXFR (1 << 16) /* max transfer */ | |
| #define GET_SECTOR(x,d) ((int) fmod (sim_gtime() / ((double) (x)), \ | |
| ((double) drv_tab[d].sect))) | |
| #define RM_OF (MBA_RMASK + 1) | |
| /* Flags in the unit flags word */ | |
| #define UNIT_V_WLK (UNIT_V_UF + 0) /* write locked */ | |
| #define UNIT_V_DTYPE (UNIT_V_UF + 1) /* disk type */ | |
| #define UNIT_M_DTYPE 7 | |
| #define UNIT_V_AUTO (UNIT_V_UF + 4) /* autosize */ | |
| #define UNIT_V_DUMMY (UNIT_V_UF + 5) /* dummy flag */ | |
| #define UNIT_WLK (1 << UNIT_V_WLK) | |
| #define UNIT_DTYPE (UNIT_M_DTYPE << UNIT_V_DTYPE) | |
| #define UNIT_AUTO (1 << UNIT_V_AUTO) | |
| #define UNIT_DUMMY (1 << UNIT_V_DUMMY) | |
| #define GET_DTYPE(x) (((x) >> UNIT_V_DTYPE) & UNIT_M_DTYPE) | |
| #define UNIT_WPRT (UNIT_WLK | UNIT_RO) /* write prot */ | |
| /* Parameters in the unit descriptor */ | |
| #define CYL u3 /* current cylinder */ | |
| /* RPCS1, RMCS1 - control/status 1 - offset 0 */ | |
| #define RP_CS1_OF 0 | |
| #define RM_CS1_OF (0 + RM_OF) | |
| #define CS1_GO CSR_GO /* go */ | |
| #define CS1_V_FNC 1 /* function pos */ | |
| #define CS1_M_FNC 037 /* function mask */ | |
| #define CS1_N_FNC (CS1_M_FNC + 1) | |
| #define FNC_NOP 000 /* no operation */ | |
| #define FNC_UNLOAD 001 /* unload */ | |
| #define FNC_SEEK 002 /* seek */ | |
| #define FNC_RECAL 003 /* recalibrate */ | |
| #define FNC_DCLR 004 /* drive clear */ | |
| #define FNC_RELEASE 005 /* port release */ | |
| #define FNC_OFFSET 006 /* offset */ | |
| #define FNC_RETURN 007 /* return to center */ | |
| #define FNC_PRESET 010 /* read-in preset */ | |
| #define FNC_PACK 011 /* pack acknowledge */ | |
| #define FNC_SEARCH 014 /* search */ | |
| #define FNC_XFER 024 /* >=? data xfr */ | |
| #define FNC_WCHK 024 /* write check */ | |
| #define FNC_WRITE 030 /* write */ | |
| #define FNC_WRITEH 031 /* write w/ headers */ | |
| #define FNC_READ 034 /* read */ | |
| #define FNC_READH 035 /* read w/ headers */ | |
| #define CS1_RW 076 | |
| #define CS1_DVA 04000 /* drive avail */ | |
| #define GET_FNC(x) (((x) >> CS1_V_FNC) & CS1_M_FNC) | |
| /* RPDS, RMDS - drive status - offset 1 */ | |
| #define RP_DS_OF 1 | |
| #define RM_DS_OF (1 + RM_OF) | |
| #define DS_OFM 0000001 /* offset mode */ | |
| #define DS_VV 0000100 /* volume valid */ | |
| #define DS_RDY 0000200 /* drive ready */ | |
| #define DS_DPR 0000400 /* drive present */ | |
| #define DS_PGM 0001000 /* programable NI */ | |
| #define DS_LST 0002000 /* last sector */ | |
| #define DS_WRL 0004000 /* write locked */ | |
| #define DS_MOL 0010000 /* medium online */ | |
| #define DS_PIP 0020000 /* pos in progress */ | |
| #define DS_ERR 0040000 /* error */ | |
| #define DS_ATA 0100000 /* attention active */ | |
| #define DS_MBZ 0000076 | |
| /* RPER1, RMER1 - error status 1 - offset 2 */ | |
| #define RP_ER1_OF 2 | |
| #define RM_ER1_OF (2 + RM_OF) | |
| #define ER1_ILF 0000001 /* illegal func */ | |
| #define ER1_ILR 0000002 /* illegal register */ | |
| #define ER1_RMR 0000004 /* reg mod refused */ | |
| #define ER1_PAR 0000010 /* parity err */ | |
| #define ER1_FER 0000020 /* format err NI */ | |
| #define ER1_WCF 0000040 /* write clk fail NI */ | |
| #define ER1_ECH 0000100 /* ECC hard err NI */ | |
| #define ER1_HCE 0000200 /* hdr comp err NI */ | |
| #define ER1_HCR 0000400 /* hdr CRC err NI */ | |
| #define ER1_AOE 0001000 /* addr ovflo err */ | |
| #define ER1_IAE 0002000 /* invalid addr err */ | |
| #define ER1_WLE 0004000 /* write lock err */ | |
| #define ER1_DTE 0010000 /* drive time err NI */ | |
| #define ER1_OPI 0020000 /* op incomplete */ | |
| #define ER1_UNS 0040000 /* drive unsafe */ | |
| #define ER1_DCK 0100000 /* data check NI */ | |
| /* RPMR, RMMR - maintenace register - offset 3*/ | |
| #define RP_MR_OF 3 | |
| #define RM_MR_OF (3 + RM_OF) | |
| /* RPAS, RMAS - attention summary - offset 4 */ | |
| #define RP_AS_OF 4 | |
| #define RM_AS_OF (4 + RM_OF) | |
| #define AS_U0 0000001 /* unit 0 flag */ | |
| /* RPDA, RMDA - sector/track - offset 5 */ | |
| #define RP_DA_OF 5 | |
| #define RM_DA_OF (5 + RM_OF) | |
| #define DA_V_SC 0 /* sector pos */ | |
| #define DA_M_SC 077 /* sector mask */ | |
| #define DA_V_SF 8 /* track pos */ | |
| #define DA_M_SF 077 /* track mask */ | |
| #define DA_MBZ 0140300 | |
| #define GET_SC(x) (((x) >> DA_V_SC) & DA_M_SC) | |
| #define GET_SF(x) (((x) >> DA_V_SF) & DA_M_SF) | |
| /* RPDT, RMDT - drive type - offset 6 */ | |
| #define RP_DT_OF 6 | |
| #define RM_DT_OF (6 + RM_OF) | |
| /* RPLA, RMLA - look ahead register - offset 7 */ | |
| #define RP_LA_OF 7 | |
| #define RM_LA_OF (7 + RM_OF) | |
| #define LA_V_SC 6 /* sector pos */ | |
| /* RPSN, RMSN - serial number - offset 8 */ | |
| #define RP_SN_OF 8 | |
| #define RM_SN_OF (8 + RM_OF) | |
| /* RPOF, RMOF - offset register - offset 9 */ | |
| #define RP_OF_OF 9 | |
| #define RM_OF_OF (9 + RM_OF) | |
| #define OF_HCI 0002000 /* hdr cmp inh NI */ | |
| #define OF_ECI 0004000 /* ECC inhibit NI */ | |
| #define OF_F22 0010000 /* format NI */ | |
| #define OF_MBZ 0161400 | |
| /* RPDC, RMDC - desired cylinder - offset 10 */ | |
| #define RP_DC_OF 10 | |
| #define RM_DC_OF (10 + RM_OF) | |
| #define DC_V_CY 0 /* cylinder pos */ | |
| #define DC_M_CY 01777 /* cylinder mask */ | |
| #define DC_MBZ 0176000 | |
| #define GET_CY(x) (((x) >> DC_V_CY) & DC_M_CY) | |
| #define GET_DA(c,fs,d) ((((GET_CY (c) * drv_tab[d].surf) + \ | |
| GET_SF (fs)) * drv_tab[d].sect) + GET_SC (fs)) | |
| /* RPCC - current cylinder - offset 11 | |
| RMHR - holding register - offset 11 */ | |
| #define RP_CC_OF 11 | |
| #define RM_HR_OF (11 + RM_OF) | |
| /* RPER2 - error status 2 - drive unsafe conditions - unimplemented - offset 12 | |
| RMMR2 - maintenance register - unimplemented - offset 12 */ | |
| #define RP_ER2_OF 12 | |
| #define RM_MR2_OF (12 + RM_OF) | |
| /* RPER3 - error status 3 - more unsafe conditions - unimplemented - offset 13 | |
| RMER2 - error status 2 - unimplemented - offset 13 */ | |
| #define RP_ER3_OF 13 | |
| #define RM_ER2_OF (13 + RM_OF) | |
| /* RPEC1, RMEC1 - ECC status 1 - unimplemented - offset 14 */ | |
| #define RP_EC1_OF 14 | |
| #define RM_EC1_OF (14 + RM_OF) | |
| /* RPEC2, RMEC1 - ECC status 2 - unimplemented - offset 15 */ | |
| #define RP_EC2_OF 15 | |
| #define RM_EC2_OF (15 + RM_OF) | |
| /* This controller supports many different disk drive types: | |
| type #sectors/ #surfaces/ #cylinders/ | |
| surface cylinder drive | |
| RM02/3 32 5 823 =67MB | |
| RP04/5 22 19 411 =88MB | |
| RM80 31 14 559 =124MB | |
| RP06 22 19 815 =176MB | |
| RM05 32 19 823 =256MB | |
| RP07 50 32 630 =516MB | |
| In theory, each drive can be a different type. The size field in | |
| each unit selects the drive capacity for each drive and thus the | |
| drive type. DISKS MUST BE DECLARED IN ASCENDING SIZE. | |
| Note: the RP07, despite its designation, belongs to the RM family | |
| */ | |
| #define RM03_DTYPE 0 | |
| #define RM03_SECT 32 | |
| #define RM03_SURF 5 | |
| #define RM03_CYL 823 | |
| #define RM03_DEV 020024 | |
| #define RM03_SIZE (RM03_SECT * RM03_SURF * RM03_CYL * RP_NUMWD) | |
| #define RP04_DTYPE 1 | |
| #define RP04_SECT 22 | |
| #define RP04_SURF 19 | |
| #define RP04_CYL 411 | |
| #define RP04_DEV 020020 | |
| #define RP04_SIZE (RP04_SECT * RP04_SURF * RP04_CYL * RP_NUMWD) | |
| #define RM80_DTYPE 2 | |
| #define RM80_SECT 31 | |
| #define RM80_SURF 14 | |
| #define RM80_CYL 559 | |
| #define RM80_DEV 020026 | |
| #define RM80_SIZE (RM80_SECT * RM80_SURF * RM80_CYL * RP_NUMWD) | |
| #define RP06_DTYPE 3 | |
| #define RP06_SECT 22 | |
| #define RP06_SURF 19 | |
| #define RP06_CYL 815 | |
| #define RP06_DEV 020022 | |
| #define RP06_SIZE (RP06_SECT * RP06_SURF * RP06_CYL * RP_NUMWD) | |
| #define RM05_DTYPE 4 | |
| #define RM05_SECT 32 | |
| #define RM05_SURF 19 | |
| #define RM05_CYL 823 | |
| #define RM05_DEV 020027 | |
| #define RM05_SIZE (RM05_SECT * RM05_SURF * RM05_CYL * RP_NUMWD) | |
| #define RP07_DTYPE 5 | |
| #define RP07_SECT 50 | |
| #define RP07_SURF 32 | |
| #define RP07_CYL 630 | |
| #define RP07_DEV 020042 | |
| #define RP07_SIZE (RP07_SECT * RP07_SURF * RP07_CYL * RP_NUMWD) | |
| #define RP_CTRL 0 | |
| #define RM_CTRL 1 | |
| struct drvtyp { | |
| int32 sect; /* sectors */ | |
| int32 surf; /* surfaces */ | |
| int32 cyl; /* cylinders */ | |
| int32 size; /* #blocks */ | |
| int32 devtype; /* device type */ | |
| int32 ctrl; /* ctrl type */ | |
| }; | |
| static struct drvtyp drv_tab[] = { | |
| { RM03_SECT, RM03_SURF, RM03_CYL, RM03_SIZE, RM03_DEV, RM_CTRL }, | |
| { RP04_SECT, RP04_SURF, RP04_CYL, RP04_SIZE, RP04_DEV, RP_CTRL }, | |
| { RM80_SECT, RM80_SURF, RM80_CYL, RM80_SIZE, RM80_DEV, RM_CTRL }, | |
| { RP06_SECT, RP06_SURF, RP06_CYL, RP06_SIZE, RP06_DEV, RP_CTRL }, | |
| { RM05_SECT, RM05_SURF, RM05_CYL, RM05_SIZE, RM05_DEV, RM_CTRL }, | |
| { RP07_SECT, RP07_SURF, RP07_CYL, RP07_SIZE, RP07_DEV, RM_CTRL }, | |
| { 0 } | |
| }; | |
| uint16 *rpxb = NULL; /* xfer buffer */ | |
| uint16 rpcs1[RP_NUMDR] = { 0 }; /* control/status 1 */ | |
| uint16 rpda[RP_NUMDR] = { 0 }; /* track/sector */ | |
| uint16 rpds[RP_NUMDR] = { 0 }; /* drive status */ | |
| uint16 rper1[RP_NUMDR] = { 0 }; /* error status 1 */ | |
| uint16 rmhr[RP_NUMDR] = { 0 }; /* holding reg */ | |
| uint16 rpmr[RP_NUMDR] = { 0 }; /* maint reg */ | |
| uint16 rmmr2[RP_NUMDR] = { 0 }; /* maint reg 2 */ | |
| uint16 rpof[RP_NUMDR] = { 0 }; /* offset */ | |
| uint16 rpdc[RP_NUMDR] = { 0 }; /* cylinder */ | |
| uint16 rper2[RP_NUMDR] = { 0 }; /* error status 2 */ | |
| uint16 rper3[RP_NUMDR] = { 0 }; /* error status 3 */ | |
| uint16 rpec1[RP_NUMDR] = { 0 }; /* ECC correction 1 */ | |
| uint16 rpec2[RP_NUMDR] = { 0 }; /* ECC correction 2 */ | |
| int32 rp_stopioe = 1; /* stop on error */ | |
| int32 rp_swait = 10; /* seek time */ | |
| int32 rp_rwait = 10; /* rotate time */ | |
| static const char *rp_fname[CS1_N_FNC] = { | |
| "NOP", "UNLD", "SEEK", "RECAL", "DCLR", "RLS", "OFFS", "RETN", | |
| "PRESET", "PACK", "12", "13", "SCH", "15", "16", "17", | |
| "20", "21", "22", "23", "WRCHK", "25", "26", "27", | |
| "WRITE", "WRHDR", "32", "33", "READ", "RDHDR", "36", "37" | |
| }; | |
| extern FILE *sim_deb; | |
| t_stat rp_mbrd (int32 *data, int32 ofs, int32 drv); | |
| t_stat rp_mbwr (int32 data, int32 ofs, int32 drv); | |
| t_stat rp_svc (UNIT *uptr); | |
| t_stat rp_reset (DEVICE *dptr); | |
| t_stat rp_attach (UNIT *uptr, char *cptr); | |
| t_stat rp_detach (UNIT *uptr); | |
| t_stat rp_boot (int32 unitno, DEVICE *dptr); | |
| void rp_set_er (int32 flg, int32 drv); | |
| void rp_clr_as (int32 mask); | |
| void rp_update_ds (int32 flg, int32 drv); | |
| t_stat rp_go (int32 drv); | |
| t_stat rp_set_size (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat rp_set_bad (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| int32 rp_abort (void); | |
| /* RP data structures | |
| rp_dev RP device descriptor | |
| rp_unit RP unit list | |
| rp_reg RP register list | |
| rp_mod RP modifier list | |
| */ | |
| DIB rp_dib = { MBA_RP, 0, &rp_mbrd, &rp_mbwr, 0, 0, 0, { &rp_abort } }; | |
| UNIT rp_unit[] = { | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) }, | |
| { UDATA (&rp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+ | |
| UNIT_ROABLE+(INIT_DTYPE << UNIT_V_DTYPE), INIT_SIZE) } | |
| }; | |
| REG rp_reg[] = { | |
| { BRDATA (CS1, rpcs1, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (DA, rpda, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (DS, rpds, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (ER1, rper1, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (HR, rmhr, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (OF, rpof, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (DC, rpdc, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (ER2, rper2, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (ER3, rper3, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (EC1, rpec1, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (EC2, rpec2, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (MR, rpmr, DEV_RDX, 16, RP_NUMDR) }, | |
| { BRDATA (MR2, rmmr2, DEV_RDX, 16, RP_NUMDR) }, | |
| { DRDATA (STIME, rp_swait, 24), REG_NZ + PV_LEFT }, | |
| { DRDATA (RTIME, rp_rwait, 24), REG_NZ + PV_LEFT }, | |
| { URDATA (CAPAC, rp_unit[0].capac, 10, T_ADDR_W, 0, | |
| RP_NUMDR, PV_LEFT | REG_HRO) }, | |
| { FLDATA (STOP_IOE, rp_stopioe, 0) }, | |
| { GRDATA (CTRLTYPE, rp_dib.lnt, DEV_RDX, 16, 0), REG_HRO }, | |
| { NULL } | |
| }; | |
| MTAB rp_mod[] = { | |
| { MTAB_XTD|MTAB_VDV, 0, "MASSBUS", "MASSBUS", NULL, &mba_show_num }, | |
| { UNIT_WLK, 0, "write enabled", "WRITEENABLED", NULL }, | |
| { UNIT_WLK, UNIT_WLK, "write locked", "LOCKED", NULL }, | |
| { UNIT_DUMMY, 0, NULL, "BADBLOCK", &rp_set_bad }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RM03_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RM03", NULL, NULL }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RP04_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RP04", NULL, NULL }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RM80_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RM80", NULL, NULL }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RP06_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RP06", NULL, NULL }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RM05_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RM05", NULL, NULL }, | |
| { (UNIT_DTYPE+UNIT_ATT), (RP07_DTYPE << UNIT_V_DTYPE) + UNIT_ATT, | |
| "RP07", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RM03_DTYPE << UNIT_V_DTYPE), | |
| "RM03", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RP04_DTYPE << UNIT_V_DTYPE), | |
| "RP04", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RM80_DTYPE << UNIT_V_DTYPE), | |
| "RM80", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RP06_DTYPE << UNIT_V_DTYPE), | |
| "RP06", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RM05_DTYPE << UNIT_V_DTYPE), | |
| "RM05", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (RP07_DTYPE << UNIT_V_DTYPE), | |
| "RP07", NULL, NULL }, | |
| { (UNIT_AUTO+UNIT_ATT), UNIT_AUTO, "autosize", NULL, NULL }, | |
| { UNIT_AUTO, UNIT_AUTO, NULL, "AUTOSIZE", NULL }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RM03_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RM03", &rp_set_size }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RP04_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RP04", &rp_set_size }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RM80_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RM80", &rp_set_size }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RP06_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RP06", &rp_set_size }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RM05_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RM05", &rp_set_size }, | |
| { (UNIT_AUTO+UNIT_DTYPE), (RP07_DTYPE << UNIT_V_DTYPE), | |
| NULL, "RP07", &rp_set_size }, | |
| { 0 } | |
| }; | |
| DEVICE rp_dev = { | |
| "RP", rp_unit, rp_reg, rp_mod, | |
| RP_NUMDR, DEV_RDX, 30, 1, DEV_RDX, 16, | |
| NULL, NULL, &rp_reset, | |
| &rp_boot, &rp_attach, &rp_detach, | |
| &rp_dib, DEV_DISABLE | DEV_UBUS | DEV_QBUS | DEV_MBUS | DEV_DEBUG | |
| }; | |
| /* Massbus register read */ | |
| t_stat rp_mbrd (int32 *data, int32 ofs, int32 drv) | |
| { | |
| uint32 val, dtype, i; | |
| UNIT *uptr; | |
| rp_update_ds (0, drv); /* update ds */ | |
| uptr = rp_dev.units + drv; /* get unit */ | |
| if (uptr->flags & UNIT_DIS) { /* nx disk */ | |
| *data = 0; | |
| return MBE_NXD; | |
| } | |
| dtype = GET_DTYPE (uptr->flags); /* get drive type */ | |
| ofs = ofs & MBA_RMASK; /* mask offset */ | |
| if (drv_tab[dtype].ctrl == RM_CTRL) /* RM? convert */ | |
| ofs = ofs + RM_OF; | |
| switch (ofs) { /* decode offset */ | |
| case RP_CS1_OF: case RM_CS1_OF: /* RPCS1 */ | |
| val = (rpcs1[drv] & CS1_RW) | CS1_DVA; /* DVA always set */ | |
| break; | |
| case RP_DA_OF: case RM_DA_OF: /* RPDA */ | |
| val = rpda[drv] = rpda[drv] & ~DA_MBZ; | |
| break; | |
| case RP_DS_OF: case RM_DS_OF: /* RPDS */ | |
| val = rpds[drv]; | |
| break; | |
| case RP_ER1_OF: case RM_ER1_OF: /* RPER1 */ | |
| val = rper1[drv]; | |
| break; | |
| case RP_AS_OF: case RM_AS_OF: /* RPAS */ | |
| val = 0; | |
| for (i = 0; i < RP_NUMDR; i++) { | |
| if (rpds[i] & DS_ATA) | |
| val |= (AS_U0 << i); | |
| } | |
| break; | |
| case RP_LA_OF: case RM_LA_OF: /* RPLA */ | |
| val = GET_SECTOR (rp_rwait, dtype) << LA_V_SC; | |
| break; | |
| case RP_MR_OF: case RM_MR_OF: /* RPMR */ | |
| val = rpmr[drv]; | |
| break; | |
| case RP_DT_OF: case RM_DT_OF: /* RPDT */ | |
| val = drv_tab[dtype].devtype; | |
| break; | |
| case RP_SN_OF: case RM_SN_OF: /* RPSN */ | |
| val = 020 | (drv + 1); | |
| break; | |
| case RP_OF_OF: case RM_OF_OF: /* RPOF */ | |
| val = rpof[drv] = rpof[drv] & ~OF_MBZ; | |
| break; | |
| case RP_DC_OF: case RM_DC_OF: /* RPDC */ | |
| val = rpdc[drv] = rpdc[drv] & ~DC_MBZ; | |
| break; | |
| case RP_CC_OF: /* RPCC */ | |
| val = rp_unit[drv].CYL; | |
| break; | |
| case RP_ER2_OF: case RM_ER2_OF: /* RPER2 */ | |
| val = rper2[drv]; | |
| break; | |
| case RP_ER3_OF: /* RPER3 */ | |
| val = rper3[drv]; | |
| break; | |
| case RP_EC1_OF: case RM_EC1_OF: /* RPEC1 */ | |
| val = rpec1[drv]; | |
| break; | |
| case RP_EC2_OF: case RM_EC2_OF: /* RPEC2 */ | |
| val = rpec2[drv]; | |
| break; | |
| case RM_HR_OF: /* RMHR */ | |
| val = rmhr[drv] ^ DMASK; | |
| break; | |
| case RM_MR2_OF: /* RHMR2 */ | |
| val = rmmr2[drv]; | |
| break; | |
| default: /* all others */ | |
| *data = 0; | |
| return MBE_NXR; | |
| } | |
| *data = val; | |
| return SCPE_OK; | |
| } | |
| /* Massbus register write */ | |
| t_stat rp_mbwr (int32 data, int32 ofs, int32 drv) | |
| { | |
| int32 dtype; | |
| UNIT *uptr; | |
| uptr = rp_dev.units + drv; /* get unit */ | |
| if (uptr->flags & UNIT_DIS) /* nx disk */ | |
| return MBE_NXD; | |
| if ((ofs != RP_AS_OF) && sim_is_active (uptr)) { /* unit busy? */ | |
| rp_set_er (ER1_RMR, drv); /* won't write */ | |
| rp_update_ds (0, drv); | |
| return SCPE_OK; | |
| } | |
| rmhr[drv] = data; /* save write */ | |
| dtype = GET_DTYPE (uptr->flags); /* get drive type */ | |
| ofs = ofs & MBA_RMASK; /* mask offset */ | |
| if (drv_tab[dtype].ctrl == RM_CTRL) /* RM? convert */ | |
| ofs = ofs + RM_OF; | |
| switch (ofs) { /* decode PA<5:1> */ | |
| case RP_CS1_OF: case RM_CS1_OF: /* RPCS1 */ | |
| rpcs1[drv] = data & CS1_RW; | |
| if (data & CS1_GO) /* start op */ | |
| return rp_go (drv); | |
| break; | |
| case RP_DA_OF: case RM_DA_OF: /* RPDA */ | |
| rpda[drv] = data & ~DA_MBZ; | |
| break; | |
| case RP_AS_OF: case RM_AS_OF: /* RPAS */ | |
| rp_clr_as (data); | |
| break; | |
| case RP_MR_OF: case RM_MR_OF: /* RPMR */ | |
| rpmr[drv] = data; | |
| break; | |
| case RP_OF_OF: case RM_OF_OF: /* RPOF */ | |
| rpof[drv] = data & ~OF_MBZ; | |
| break; | |
| case RP_DC_OF: case RM_DC_OF: /* RPDC */ | |
| rpdc[drv] = data & ~DC_MBZ; | |
| break; | |
| case RM_MR2_OF: /* RMMR2 */ | |
| rmmr2[drv] = data; | |
| break; | |
| case RP_ER1_OF: case RM_ER1_OF: /* RPER1 */ | |
| case RP_DS_OF: case RM_DS_OF: /* RPDS */ | |
| case RP_LA_OF: case RM_LA_OF: /* RPLA */ | |
| case RP_DT_OF: case RM_DT_OF: /* RPDT */ | |
| case RP_SN_OF: case RM_SN_OF: /* RPSN */ | |
| case RP_CC_OF: /* RPCC */ | |
| case RP_ER2_OF: case RM_ER2_OF: /* RPER2 */ | |
| case RP_ER3_OF: /* RPER3 */ | |
| case RP_EC1_OF: case RM_EC1_OF: /* RPEC1 */ | |
| case RP_EC2_OF: case RM_EC2_OF: /* RPEC2 */ | |
| case RM_HR_OF: /* RMHR */ | |
| break; /* read only */ | |
| default: /* all others */ | |
| return MBE_NXR; | |
| } /* end switch */ | |
| rp_update_ds (0, drv); /* update status */ | |
| return SCPE_OK; | |
| } | |
| /* Initiate operation - unit not busy, function set */ | |
| t_stat rp_go (int32 drv) | |
| { | |
| int32 dc, fnc, dtype, t; | |
| UNIT *uptr; | |
| fnc = GET_FNC (rpcs1[drv]); /* get function */ | |
| if (DEBUG_PRS (rp_dev)) | |
| fprintf (sim_deb, ">>RP%d STRT: fnc=%s, ds=%o, cyl=%o, da=%o, er=%o\n", | |
| drv, rp_fname[fnc], rpds[drv], rpdc[drv], rpda[drv], rper1[drv]); | |
| uptr = rp_dev.units + drv; /* get unit */ | |
| rp_clr_as (AS_U0 << drv); /* clear attention */ | |
| dtype = GET_DTYPE (uptr->flags); /* get drive type */ | |
| dc = rpdc[drv]; /* assume seek, sch */ | |
| if ((fnc != FNC_DCLR) && (rpds[drv] & DS_ERR)) { /* err & ~clear? */ | |
| rp_set_er (ER1_ILF, drv); /* not allowed */ | |
| rp_update_ds (DS_ATA, drv); /* set attention */ | |
| return MBE_GOE; | |
| } | |
| switch (fnc) { /* case on function */ | |
| case FNC_DCLR: /* drive clear */ | |
| rper1[drv] = rper2[drv] = rper3[drv] = 0; /* clear errors */ | |
| rpec2[drv] = 0; /* clear EC2 */ | |
| if (drv_tab[dtype].ctrl == RM_CTRL) /* RM? */ | |
| rpmr[drv] = 0; /* clear maint */ | |
| else rpec1[drv] = 0; /* RP, clear EC1 */ | |
| case FNC_NOP: /* no operation */ | |
| case FNC_RELEASE: /* port release */ | |
| return SCPE_OK; | |
| case FNC_PRESET: /* read-in preset */ | |
| rpdc[drv] = 0; /* clear disk addr */ | |
| rpda[drv] = 0; | |
| rpof[drv] = 0; /* clear offset */ | |
| case FNC_PACK: /* pack acknowledge */ | |
| rpds[drv] = rpds[drv] | DS_VV; /* set volume valid */ | |
| return SCPE_OK; | |
| case FNC_OFFSET: /* offset mode */ | |
| case FNC_RETURN: | |
| if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */ | |
| rp_set_er (ER1_UNS, drv); /* unsafe */ | |
| break; | |
| } | |
| rpds[drv] = (rpds[drv] & ~DS_RDY) | DS_PIP; /* set positioning */ | |
| sim_activate (uptr, rp_swait); /* time operation */ | |
| return SCPE_OK; | |
| case FNC_UNLOAD: /* unload */ | |
| case FNC_RECAL: /* recalibrate */ | |
| dc = 0; /* seek to 0 */ | |
| case FNC_SEEK: /* seek */ | |
| case FNC_SEARCH: /* search */ | |
| if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */ | |
| rp_set_er (ER1_UNS, drv); /* unsafe */ | |
| break; | |
| } | |
| if ((GET_CY (dc) >= drv_tab[dtype].cyl) || /* bad cylinder */ | |
| (GET_SF (rpda[drv]) >= drv_tab[dtype].surf) || /* bad surface */ | |
| (GET_SC (rpda[drv]) >= drv_tab[dtype].sect)) { /* or bad sector? */ | |
| rp_set_er (ER1_IAE, drv); | |
| break; | |
| } | |
| rpds[drv] = (rpds[drv] & ~DS_RDY) | DS_PIP; /* set positioning */ | |
| t = abs (dc - uptr->CYL); /* cyl diff */ | |
| if (t == 0) /* min time */ | |
| t = 1; | |
| sim_activate (uptr, rp_swait * t); /* schedule */ | |
| uptr->CYL = dc; /* save cylinder */ | |
| return SCPE_OK; | |
| case FNC_WRITEH: /* write headers */ | |
| case FNC_WRITE: /* write */ | |
| case FNC_WCHK: /* write check */ | |
| case FNC_READ: /* read */ | |
| case FNC_READH: /* read headers */ | |
| if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */ | |
| rp_set_er (ER1_UNS, drv); /* unsafe */ | |
| break; | |
| } | |
| if ((GET_CY (dc) >= drv_tab[dtype].cyl) || /* bad cylinder */ | |
| (GET_SF (rpda[drv]) >= drv_tab[dtype].surf) || /* bad surface */ | |
| (GET_SC (rpda[drv]) >= drv_tab[dtype].sect)) { /* or bad sector? */ | |
| rp_set_er (ER1_IAE, drv); | |
| break; | |
| } | |
| rpds[drv] = rpds[drv] & ~DS_RDY; /* clear drive rdy */ | |
| sim_activate (uptr, rp_rwait + (rp_swait * abs (dc - uptr->CYL))); | |
| uptr->CYL = dc; /* save cylinder */ | |
| return SCPE_OK; | |
| default: /* all others */ | |
| rp_set_er (ER1_ILF, drv); /* not supported */ | |
| break; | |
| } | |
| rp_update_ds (DS_ATA, drv); /* set attn, req int */ | |
| return MBE_GOE; | |
| } | |
| /* Abort opertion - there is a data transfer in progress */ | |
| int32 rp_abort (void) | |
| { | |
| return rp_reset (&rp_dev); | |
| } | |
| /* Service unit timeout | |
| Complete movement or data transfer command | |
| Unit must exist - can't remove an active unit | |
| Unit must be attached - detach cancels in progress operations | |
| */ | |
| t_stat rp_svc (UNIT *uptr) | |
| { | |
| int32 i, fnc, dtype, drv, err; | |
| int32 wc, abc, awc, mbc, da; | |
| dtype = GET_DTYPE (uptr->flags); /* get drive type */ | |
| drv = (int32) (uptr - rp_dev.units); /* get drv number */ | |
| da = GET_DA (rpdc[drv], rpda[drv], dtype) * RP_NUMWD; /* get disk addr */ | |
| fnc = GET_FNC (rpcs1[drv]); /* get function */ | |
| if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */ | |
| rp_set_er (ER1_UNS, drv); /* set drive error */ | |
| if (fnc >= FNC_XFER) /* xfr? set done */ | |
| mba_set_don (rp_dib.ba); | |
| rp_update_ds (DS_ATA, drv); /* set attn */ | |
| return (rp_stopioe? SCPE_UNATT: SCPE_OK); | |
| } | |
| rpds[drv] = (rpds[drv] & ~DS_PIP) | DS_RDY; /* change drive status */ | |
| switch (fnc) { /* case on function */ | |
| case FNC_OFFSET: /* offset */ | |
| rp_update_ds (DS_OFM | DS_ATA, drv); | |
| break; | |
| case FNC_RETURN: /* return to centerline */ | |
| rpds[drv] = rpds[drv] & ~DS_OFM; /* clear offset, set attn */ | |
| rp_update_ds (DS_ATA, drv); | |
| break; | |
| case FNC_UNLOAD: /* unload */ | |
| rp_detach (uptr); /* detach unit */ | |
| break; | |
| case FNC_RECAL: /* recalibrate */ | |
| case FNC_SEARCH: /* search */ | |
| case FNC_SEEK: /* seek */ | |
| rp_update_ds (DS_ATA, drv); | |
| break; | |
| case FNC_WRITE: /* write */ | |
| if (uptr->flags & UNIT_WPRT) { /* write locked? */ | |
| rp_set_er (ER1_WLE, drv); /* set drive error */ | |
| mba_set_exc (rp_dib.ba); /* set exception */ | |
| rp_update_ds (DS_ATA, drv); /* set attn */ | |
| return SCPE_OK; | |
| } | |
| case FNC_WCHK: /* write check */ | |
| case FNC_READ: /* read */ | |
| case FNC_READH: /* read headers */ | |
| err = fseek (uptr->fileref, da * sizeof (int16), SEEK_SET); | |
| mbc = mba_get_bc (rp_dib.ba); /* get byte count */ | |
| wc = (mbc + 1) >> 1; /* convert to words */ | |
| if ((da + wc) > drv_tab[dtype].size) { /* disk overrun? */ | |
| rp_set_er (ER1_AOE, drv); /* set err */ | |
| wc = drv_tab[dtype].size - da; /* trim xfer */ | |
| mbc = wc << 1; /* trim mb count */ | |
| if (da >= drv_tab[dtype].size) { /* none left? */ | |
| mba_set_exc (rp_dib.ba); /* set exception */ | |
| rp_update_ds (DS_ATA, drv); /* set attn */ | |
| break; | |
| } | |
| } | |
| if (fnc == FNC_WRITE) { /* write? */ | |
| abc = mba_rdbufW (rp_dib.ba, mbc, rpxb); /* get buffer */ | |
| wc = (abc + 1) >> 1; /* actual # wds */ | |
| awc = (wc + (RP_NUMWD - 1)) & ~(RP_NUMWD - 1); | |
| for (i = wc; i < awc; i++) /* fill buf */ | |
| rpxb[i] = 0; | |
| if (wc && !err) { /* write buf */ | |
| fxwrite (rpxb, sizeof (uint16), awc, uptr->fileref); | |
| err = ferror (uptr->fileref); | |
| } | |
| } /* end if wr */ | |
| else { /* read or wchk */ | |
| awc = fxread (rpxb, sizeof (uint16), wc, uptr->fileref); | |
| err = ferror (uptr->fileref); | |
| for (i = awc; i < wc; i++) /* fill buf */ | |
| rpxb[i] = 0; | |
| if (fnc == FNC_WCHK) /* write check? */ | |
| mba_chbufW (rp_dib.ba, mbc, rpxb); /* check vs mem */ | |
| else mba_wrbufW (rp_dib.ba, mbc, rpxb); /* store in mem */ | |
| } /* end if read */ | |
| da = da + wc + (RP_NUMWD - 1); | |
| if (da >= drv_tab[dtype].size) | |
| rpds[drv] = rpds[drv] | DS_LST; | |
| da = da / RP_NUMWD; | |
| rpda[drv] = da % drv_tab[dtype].sect; | |
| da = da / drv_tab[dtype].sect; | |
| rpda[drv] = rpda[drv] | ((da % drv_tab[dtype].surf) << DA_V_SF); | |
| rpdc[drv] = da / drv_tab[dtype].surf; | |
| uptr->CYL = rpdc[drv]; | |
| if (err != 0) { /* error? */ | |
| rp_set_er (ER1_PAR, drv); /* set drive error */ | |
| mba_set_exc (rp_dib.ba); /* set exception */ | |
| rp_update_ds (DS_ATA, drv); | |
| perror ("RP I/O error"); | |
| clearerr (uptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| case FNC_WRITEH: /* write headers stub */ | |
| mba_set_don (rp_dib.ba); /* set done */ | |
| rp_update_ds (0, drv); /* update ds */ | |
| break; | |
| } /* end case func */ | |
| if (DEBUG_PRS (rp_dev)) | |
| fprintf (sim_deb, ">>RP%d DONE: fnc=%s, ds=%o, cyl=%o, da=%o, er=%d\n", | |
| drv, rp_fname[fnc], rpds[drv], rpdc[drv], rpda[drv], rper1[drv]); | |
| return SCPE_OK; | |
| } | |
| /* Set drive error */ | |
| void rp_set_er (int32 flag, int32 drv) | |
| { | |
| rper1[drv] = rper1[drv] | flag; | |
| rpds[drv] = rpds[drv] | DS_ATA; | |
| mba_upd_ata (rp_dib.ba, 1); | |
| return; | |
| } | |
| /* Clear attention flags */ | |
| void rp_clr_as (int32 mask) | |
| { | |
| uint32 i, as; | |
| for (i = as = 0; i < RP_NUMDR; i++) { | |
| if (mask & (AS_U0 << i)) | |
| rpds[i] &= ~DS_ATA; | |
| if (rpds[i] & DS_ATA) | |
| as = 1; | |
| } | |
| mba_upd_ata (rp_dib.ba, as); | |
| return; | |
| } | |
| /* Drive status update */ | |
| void rp_update_ds (int32 flag, int32 drv) | |
| { | |
| if (rp_unit[drv].flags & UNIT_DIS) | |
| rpds[drv] = rper1[drv] = 0; | |
| else rpds[drv] = (rpds[drv] | DS_DPR) & ~DS_PGM; | |
| if (rp_unit[drv].flags & UNIT_ATT) | |
| rpds[drv] = rpds[drv] | DS_MOL; | |
| else rpds[drv] = rpds[drv] & ~(DS_MOL | DS_VV | DS_RDY); | |
| if (rper1[drv] | rper2[drv] | rper3[drv]) | |
| rpds[drv] = rpds[drv] | DS_ERR; | |
| else rpds[drv] = rpds[drv] & ~DS_ERR; | |
| rpds[drv] = rpds[drv] | flag; | |
| if (flag & DS_ATA) | |
| mba_upd_ata (rp_dib.ba, 1); | |
| return; | |
| } | |
| /* Device reset */ | |
| t_stat rp_reset (DEVICE *dptr) | |
| { | |
| int32 i; | |
| UNIT *uptr; | |
| mba_set_enbdis (MBA_RP, rp_dev.flags & DEV_DIS); | |
| for (i = 0; i < RP_NUMDR; i++) { | |
| uptr = rp_dev.units + i; | |
| sim_cancel (uptr); | |
| uptr->CYL = 0; | |
| if (uptr->flags & UNIT_ATT) | |
| rpds[i] = (rpds[i] & DS_VV) | DS_DPR | DS_RDY | DS_MOL | | |
| ((uptr->flags & UNIT_WPRT)? DS_WRL: 0); | |
| else if (uptr->flags & UNIT_DIS) | |
| rpds[i] = 0; | |
| else rpds[i] = DS_DPR; | |
| rpcs1[i] = 0; | |
| rper1[i] = 0; | |
| rpof[i] = 0; | |
| rpdc[i] = 0; | |
| rpda[i] = 0; | |
| rpmr[i] = 0; | |
| rper2[i] = 0; | |
| rper3[i] = 0; | |
| rpec1[i] = 0; | |
| rpec2[i] = 0; | |
| rmmr2[i] = 0; | |
| rmhr[i] = 0; | |
| } | |
| if (rpxb == NULL) | |
| rpxb = (uint16 *) calloc (RP_MAXFR, sizeof (uint16)); | |
| if (rpxb == NULL) | |
| return SCPE_MEM; | |
| return SCPE_OK; | |
| } | |
| /* Device attach */ | |
| t_stat rp_attach (UNIT *uptr, char *cptr) | |
| { | |
| int32 drv, i, p; | |
| t_stat r; | |
| uptr->capac = drv_tab[GET_DTYPE (uptr->flags)].size; | |
| r = attach_unit (uptr, cptr); /* attach unit */ | |
| if (r != SCPE_OK) /* error? */ | |
| return r; | |
| drv = (int32) (uptr - rp_dev.units); /* get drv number */ | |
| rpds[drv] = DS_MOL | DS_RDY | DS_DPR | /* upd drv status */ | |
| ((uptr->flags & UNIT_WPRT)? DS_WRL: 0); | |
| rper1[drv] = 0; | |
| rp_update_ds (DS_ATA, drv); /* upd ctlr status */ | |
| if ((p = sim_fsize (uptr->fileref)) == 0) { /* new disk image? */ | |
| if (uptr->flags & UNIT_RO) | |
| return SCPE_OK; | |
| return pdp11_bad_block (uptr, | |
| drv_tab[GET_DTYPE (uptr->flags)].sect, RP_NUMWD); | |
| } | |
| if ((uptr->flags & UNIT_AUTO) == 0) /* autosize? */ | |
| return SCPE_OK; | |
| for (i = 0; drv_tab[i].sect != 0; i++) { | |
| if (p <= (drv_tab[i].size * (int) sizeof (int16))) { | |
| uptr->flags = (uptr->flags & ~UNIT_DTYPE) | (i << UNIT_V_DTYPE); | |
| uptr->capac = drv_tab[i].size; | |
| return SCPE_OK; | |
| } | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Device detach */ | |
| t_stat rp_detach (UNIT *uptr) | |
| { | |
| int32 drv; | |
| if (!(uptr->flags & UNIT_ATT)) /* attached? */ | |
| return SCPE_OK; | |
| drv = (int32) (uptr - rp_dev.units); /* get drv number */ | |
| rpds[drv] = rpds[drv] & ~(DS_MOL | DS_RDY | DS_WRL | DS_VV | DS_OFM); | |
| rp_update_ds (DS_ATA, drv); /* request intr */ | |
| return detach_unit (uptr); | |
| } | |
| /* Set size command validation routine */ | |
| t_stat rp_set_size (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| int32 dtype = GET_DTYPE (val); | |
| if (uptr->flags & UNIT_ATT) | |
| return SCPE_ALATT; | |
| uptr->capac = drv_tab[dtype].size; | |
| return SCPE_OK; | |
| } | |
| /* Set bad block routine */ | |
| t_stat rp_set_bad (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| return pdp11_bad_block (uptr, drv_tab[GET_DTYPE (uptr->flags)].sect, RP_NUMWD); | |
| } | |
| /* Boot routine */ | |
| #if defined (VM_PDP11) | |
| #define BOOT_START 02000 /* start */ | |
| #define BOOT_ENTRY (BOOT_START + 002) /* entry */ | |
| #define BOOT_UNIT (BOOT_START + 010) /* unit number */ | |
| #define BOOT_CSR (BOOT_START + 014) /* CSR */ | |
| #define BOOT_LEN (sizeof (boot_rom) / sizeof (uint16)) | |
| static const uint16 boot_rom[] = { | |
| 0042102, /* "BD" */ | |
| 0012706, BOOT_START, /* mov #boot_start, sp */ | |
| 0012700, 0000000, /* mov #unit, r0 */ | |
| 0012701, 0176700, /* mov #RPCS1, r1 */ | |
| 0012761, 0000040, 0000010, /* mov #CS2_CLR, 10(r1) ; reset */ | |
| 0010061, 0000010, /* mov r0, 10(r1) ; set unit */ | |
| 0012711, 0000021, /* mov #RIP+GO, (r1) ; pack ack */ | |
| 0012761, 0010000, 0000032, /* mov #FMT16B, 32(r1) ; 16b mode */ | |
| 0012761, 0177000, 0000002, /* mov #-512., 2(r1) ; set wc */ | |
| 0005061, 0000004, /* clr 4(r1) ; clr ba */ | |
| 0005061, 0000006, /* clr 6(r1) ; clr da */ | |
| 0005061, 0000034, /* clr 34(r1) ; clr cyl */ | |
| 0012711, 0000071, /* mov #READ+GO, (r1) ; read */ | |
| 0105711, /* tstb (r1) ; wait */ | |
| 0100376, /* bpl .-2 */ | |
| 0005002, /* clr R2 */ | |
| 0005003, /* clr R3 */ | |
| 0012704, BOOT_START+020, /* mov #start+020, r4 */ | |
| 0005005, /* clr R5 */ | |
| 0105011, /* clrb (r1) */ | |
| 0005007 /* clr PC */ | |
| }; | |
| t_stat rp_boot (int32 unitno, DEVICE *dptr) | |
| { | |
| int32 i; | |
| extern int32 saved_PC; | |
| extern uint16 *M; | |
| UNIT *uptr = rp_dev.units + unitno; | |
| for (i = 0; i < BOOT_LEN; i++) | |
| M[(BOOT_START >> 1) + i] = boot_rom[i]; | |
| M[BOOT_UNIT >> 1] = unitno & (RP_NUMDR - 1); | |
| M[BOOT_CSR >> 1] = mba_get_csr (rp_dib.ba) & DMASK; | |
| if (drv_tab[GET_DTYPE (uptr->flags)].ctrl == RP_CTRL) | |
| M[BOOT_START >> 1] = 042102; /* "BD" */ | |
| else M[BOOT_START >> 1] = 042122; /* "RD" */ | |
| saved_PC = BOOT_ENTRY; | |
| return SCPE_OK; | |
| } | |
| #else | |
| t_stat rp_boot (int32 unitno, DEVICE *dptr) | |
| { | |
| return SCPE_NOFNC; | |
| } | |
| #endif |