root/src/dps8/dps8_mt.h

/* */

INCLUDED FROM

   1 /*
   2  * vim: filetype=c:tabstop=4:ai:expandtab
   3  * SPDX-License-Identifier: ICU
   4  * scspell-id: b39ac98e-f62e-11ec-98a8-80ee73e9b8e7
   5  *
   6  * ---------------------------------------------------------------------------
   7  *
   8  * Copyright (c) 2007-2013 Michael Mondy
   9  * Copyright (c) 2012-2016 Harry Reed
  10  * Copyright (c) 2013-2016 Charles Anthony
  11  * Copyright (c) 2021-2022 The DPS8M Development Team
  12  *
  13  * All rights reserved.
  14  *
  15  * This software is made available under the terms of the ICU
  16  * License, version 1.8.1 or later.  For more details, see the
  17  * LICENSE.md file at the top-level directory of this distribution.
  18  *
  19  * ---------------------------------------------------------------------------
  20  */
  21 
  22 #define BUFSZ (4096 * 9 / 2)
  23 
  24 struct tape_state
  25   {
  26     //enum tape_mode { tape_no_mode, tape_read_mode, tape_write_mode, tape_survey_mode } io_mode;
  27     enum tape_mode
  28       {
  29         tape_no_mode, tape_rd_ctlr, tape_rd_9, tape_rd_bin, tape_initiate_rd_mem,
  30         tape_wr_9, tape_wr_bin, tape_initiate_wr_mem, tape_MTP_wr, tape_wr_ctrl_regs, tape_survey,
  31       } io_mode;
  32     bool is9;
  33     uint8 buf [BUFSZ];
  34     t_mtrlnt tbc; // Number of bytes read into buffer
  35     uint words_processed; // Number of Word36 processed from the buffer
  36 // XXX bug: 'sim> set tapeN rewind' doesn't reset rec_num
  37     int rec_num; // track tape position
  38     char device_name [MAX_DEV_NAME_LEN];
  39     word16 cntlrAddress;
  40     word16 cntlrTally;
  41     int tape_length;
  42   };
  43 
  44 extern struct tape_state tape_states [N_MT_UNITS_MAX];
  45 
  46 extern UNIT mt_unit [N_MT_UNITS_MAX];
  47 extern DEVICE tape_dev;
  48 extern UNIT mtp_unit [N_MTP_UNITS_MAX];
  49 extern DEVICE mtp_dev;
  50 
  51 void mt_init(void);
  52 void mt_exit (void);
  53 int get_mt_numunits (void);
  54 //UNIT * getTapeUnit (uint driveNumber);
  55 //void tape_send_special_interrupt (uint driveNumber);
  56 t_stat loadTape (uint driveNumber, char * tapeFilename, bool ro);
  57 t_stat attachTape (char * label, bool withring, char * drive);
  58 #ifndef QUIET_UNUSED
  59 t_stat detachTape (char * drive);
  60 #endif
  61 iom_cmd_rc_t mt_iom_cmd (uint iomUnitIdx, uint chan);
  62 t_stat unloadTape (uint driveNumber);
  63 t_stat mount_tape (int32 arg, const char * buf);
  64 t_stat signal_tape (uint tap_unit_idx, word8 status0, word8 status1);

/* */