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/* sim_tape.h: simulator tape support library definitions
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.
23-Jan-12 MP Added support for Logical EOT detection while positioning
05-Feb-11 MP Add Asynch I/O support
30-Aug-06 JDB Added erase gap support
14-Feb-06 RMS Added variable tape capacity
17-Dec-05 RMS Added write support for Paul Pierce 7b format
02-May-05 RMS Added support for Paul Pierce 7b format
*/
#ifndef _SIM_TAPE_H_
#define _SIM_TAPE_H_ 0
/* SIMH/E11 tape format */
typedef uint32 t_mtrlnt; /* magtape rec lnt */
#define MTR_TMK 0x00000000 /* tape mark */
#define MTR_EOM 0xFFFFFFFF /* end of medium */
#define MTR_GAP 0xFFFFFFFE /* primary gap */
#define MTR_FHGAP 0xFFFEFFFF /* fwd half gap (overwrite) */
#define MTR_RHGAP 0xFFFF0000 /* rev half gap (overwrite) */
#define MTR_M_RHGAP (~0x000080FF) /* range mask for rev gap */
#define MTR_MAXLEN 0x00FFFFFF /* max len is 24b */
#define MTR_ERF 0x80000000 /* error flag */
#define MTR_F(x) ((x) & MTR_ERF) /* record error flg */
#define MTR_L(x) ((x) & ~MTR_ERF) /* record length */
/* TPC tape format */
typedef uint16 t_tpclnt; /* magtape rec lnt */
/* P7B tape format */
#define P7B_SOR 0x80 /* start of record */
#define P7B_PAR 0x40 /* parity */
#define P7B_DATA 0x3F /* data */
#define P7B_DPAR (P7B_PAR|P7B_DATA) /* data and parity */
#define P7B_EOF 0x0F /* eof character */
#define TPC_TMK 0x0000 /* tape mark */
/* Unit flags */
#define MTUF_V_PNU (UNIT_V_UF + 0) /* position not upd */
#define MTUF_V_WLK (UNIT_V_UF + 1) /* write locked */
#define MTUF_V_FMT (UNIT_V_UF + 2) /* tape file format */
#define MTUF_W_FMT 3 /* 3b of formats */
#define MTUF_N_FMT (1u << MTUF_W_FMT) /* number of formats */
#define MTUF_M_FMT ((1u << MTUF_W_FMT) - 1)
#define MTUF_F_STD 0 /* SIMH format */
#define MTUF_F_E11 1 /* E11 format */
#define MTUF_F_TPC 2 /* TPC format */
#define MTUF_F_P7B 3 /* P7B format */
#define MUTF_F_TDF 4 /* TDF format */
#define MTUF_V_UF (MTUF_V_FMT + MTUF_W_FMT)
#define MTUF_PNU (1u << MTUF_V_PNU)
#define MTUF_WLK (1u << MTUF_V_WLK)
#define MTUF_FMT (MTUF_M_FMT << MTUF_V_FMT)
#define MTUF_WRP (MTUF_WLK | UNIT_RO)
#define MT_F_STD (MTUF_F_STD << MTUF_V_FMT)
#define MT_F_E11 (MTUF_F_E11 << MTUF_V_FMT)
#define MT_F_TPC (MTUF_F_TPC << MTUF_V_FMT)
#define MT_F_P7B (MTUF_F_P7B << MTUF_V_FMT)
#define MT_F_TDF (MTUF_F_TDF << MTUF_V_FMT)
#define MT_SET_PNU(u) (u)->flags = (u)->flags | MTUF_PNU
#define MT_CLR_PNU(u) (u)->flags = (u)->flags & ~MTUF_PNU
#define MT_TST_PNU(u) ((u)->flags & MTUF_PNU)
#define MT_GET_FMT(u) (((u)->flags >> MTUF_V_FMT) & MTUF_M_FMT)
/* sim_tape_position Position Flags */
#define MTPOS_V_REW 3
#define MTPOS_M_REW (1u << MTPOS_V_REW) /* Rewind First */
#define MTPOS_V_REV 2
#define MTPOS_M_REV (1u << MTPOS_V_REV) /* Reverse Direction */
#define MTPOS_V_OBJ 1
#define MTPOS_M_OBJ (1u << MTPOS_V_OBJ) /* Objects vs Records/Files */
#define MTPOS_V_DLE 4
#define MTPOS_M_DLE (1u << MTPOS_V_DLE) /* Detect LEOT */
/* Return status codes */
#define MTSE_OK 0 /* no error */
#define MTSE_TMK 1 /* tape mark */
#define MTSE_UNATT 2 /* unattached */
#define MTSE_IOERR 3 /* IO error */
#define MTSE_INVRL 4 /* invalid rec lnt */
#define MTSE_FMT 5 /* invalid format */
#define MTSE_BOT 6 /* beginning of tape */
#define MTSE_EOM 7 /* end of medium */
#define MTSE_RECE 8 /* error in record */
#define MTSE_WRP 9 /* write protected */
#define MTSE_LEOT 10 /* Logical End Of Tape */
typedef void (*TAPE_PCALLBACK)(UNIT *unit, t_stat status);
/* Prototypes */
t_stat sim_tape_attach_ex (UNIT *uptr, char *cptr, uint32 dbit, int completion_delay);
t_stat sim_tape_attach (UNIT *uptr, char *cptr);
t_stat sim_tape_detach (UNIT *uptr);
t_stat sim_tape_rdrecf (UNIT *uptr, uint8 *buf, t_mtrlnt *bc, t_mtrlnt max);
t_stat sim_tape_rdrecf_a (UNIT *uptr, uint8 *buf, t_mtrlnt *bc, t_mtrlnt max, TAPE_PCALLBACK callback);
t_stat sim_tape_rdrecr (UNIT *uptr, uint8 *buf, t_mtrlnt *bc, t_mtrlnt max);
t_stat sim_tape_rdrecr_a (UNIT *uptr, uint8 *buf, t_mtrlnt *bc, t_mtrlnt max, TAPE_PCALLBACK callback);
t_stat sim_tape_wrrecf (UNIT *uptr, uint8 *buf, t_mtrlnt bc);
t_stat sim_tape_wrrecf_a (UNIT *uptr, uint8 *buf, t_mtrlnt bc, TAPE_PCALLBACK callback);
t_stat sim_tape_wrtmk (UNIT *uptr);
t_stat sim_tape_wrtmk_a (UNIT *uptr, TAPE_PCALLBACK callback);
t_stat sim_tape_wreom (UNIT *uptr);
t_stat sim_tape_wreom_a (UNIT *uptr, TAPE_PCALLBACK callback);
t_stat sim_tape_wreomrw (UNIT *uptr);
t_stat sim_tape_wreomrw_a (UNIT *uptr, TAPE_PCALLBACK callback);
t_stat sim_tape_wrgap (UNIT *uptr, uint32 gaplen, uint32 bpi);
t_stat sim_tape_wrgap_a (UNIT *uptr, uint32 gaplen, uint32 bpi, TAPE_PCALLBACK callback);
t_stat sim_tape_sprecf (UNIT *uptr, t_mtrlnt *bc);
t_stat sim_tape_sprecf_a (UNIT *uptr, t_mtrlnt *bc, TAPE_PCALLBACK callback);
t_stat sim_tape_sprecsf (UNIT *uptr, uint32 count, uint32 *skipped);
t_stat sim_tape_sprecsf_a (UNIT *uptr, uint32 count, uint32 *skipped, TAPE_PCALLBACK callback);
t_stat sim_tape_spfilef (UNIT *uptr, uint32 count, uint32 *skipped);
t_stat sim_tape_spfilef_a (UNIT *uptr, uint32 count, uint32 *skipped, TAPE_PCALLBACK callback);
t_stat sim_tape_spfilebyrecf (UNIT *uptr, uint32 count, uint32 *skipped, uint32 *recsskipped, t_bool check_leot);
t_stat sim_tape_spfilebyrecf_a (UNIT *uptr, uint32 count, uint32 *skipped, uint32 *recsskipped, t_bool check_leot, TAPE_PCALLBACK callback);
t_stat sim_tape_sprecr (UNIT *uptr, t_mtrlnt *bc);
t_stat sim_tape_sprecr_a (UNIT *uptr, t_mtrlnt *bc, TAPE_PCALLBACK callback);
t_stat sim_tape_sprecsr (UNIT *uptr, uint32 count, uint32 *skipped);
t_stat sim_tape_sprecsr_a (UNIT *uptr, uint32 count, uint32 *skipped, TAPE_PCALLBACK callback);
t_stat sim_tape_spfiler (UNIT *uptr, uint32 count, uint32 *skipped);
t_stat sim_tape_spfiler_a (UNIT *uptr, uint32 count, uint32 *skipped, TAPE_PCALLBACK callback);
t_stat sim_tape_spfilebyrecr (UNIT *uptr, uint32 count, uint32 *skipped, uint32 *recsskipped);
t_stat sim_tape_spfilebyrecr_a (UNIT *uptr, uint32 count, uint32 *skipped, uint32 *recsskipped, TAPE_PCALLBACK callback);
t_stat sim_tape_rewind (UNIT *uptr);
t_stat sim_tape_rewind_a (UNIT *uptr, TAPE_PCALLBACK callback);
t_stat sim_tape_position (UNIT *uptr, uint8 flags, uint32 recs, uint32 *recskipped, uint32 files, uint32 *fileskipped, uint32 *objectsskipped);
t_stat sim_tape_position_a (UNIT *uptr, uint8 flags, uint32 recs, uint32 *recsskipped, uint32 files, uint32 *filesskipped, uint32 *objectsskipped, TAPE_PCALLBACK callback);
t_stat sim_tape_reset (UNIT *uptr);
t_bool sim_tape_bot (UNIT *uptr);
t_bool sim_tape_wrp (UNIT *uptr);
t_bool sim_tape_eot (UNIT *uptr);
t_stat sim_tape_set_fmt (UNIT *uptr, int32 val, char *cptr, void *desc);
t_stat sim_tape_show_fmt (FILE *st, UNIT *uptr, int32 val, void *desc);
t_stat sim_tape_set_capac (UNIT *uptr, int32 val, char *cptr, void *desc);
t_stat sim_tape_show_capac (FILE *st, UNIT *uptr, int32 val, void *desc);
t_stat sim_tape_set_asynch (UNIT *uptr, int latency);
t_stat sim_tape_clr_asynch (UNIT *uptr);
void sim_tape_data_trace (UNIT *uptr, const uint8 *data, size_t len, const char* txt, int detail, uint32 reason);
#endif
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