#!/usr/bin/perl -w
# $Id: ticonv_pdpcp 1089 2018-12-19 10:45:41Z mueller $
#
# Copyright 2013-2018 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
#
# This program is free software; you may redistribute and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for complete details.
#
#  Revision History:
# Date         Rev Version  Comment
# 2018-12-18  1089   1.3.3  add and use bailout
# 2016-08-07   795   1.3.2  avoid GetOptions =f (bug in perl v5.22.1)
# 2015-05-08   675   1.3.1  start/stop/suspend overhaul
# 2015-04-03   661   1.3    adopt to new stat checking and mask polarity
# 2014-12-27   622   1.2.1  use wmembe now
# 2014-12-07   609   1.2    use rlink::anena (for rlink v4)
# 2014-07-31   576   1.1    add --cmax option (default = 3); support .sdef
# 2014-07-26   575   1.0.4  add --tout option (sets wtcpu timeout)
# 2013-05-19   521   1.0.3  use -be subopt of -wibrb
# 2013-04-12   504   1.0.2  renamed from pi2ti_pdpcp; fix [rm]wi handling
#                           use wtcpu command; use wibrbbe command;
# 2013-02-05   483   1.0.1  make cpucmd parametrizable
# 2013-02-02   480   1.0    Initial version
#

use 5.14.0;                                 # require Perl 5.14 or higher
use strict;                                 # require strict checking

use Getopt::Long;

my %opts = ();

GetOptions(\%opts, "tout=s", "cmax=i"
          )
  or bailout("bad command options");

my @cmdlist;

bailout("usage: ticonv_pdpcp <cpucmd> <filename>") if (scalar(@ARGV) != 2);

my $cpu  = $ARGV[0];
my $fnam = $ARGV[1];
my $tout = $opts{tout} || 10.;
my $cmax = $opts{cmax} || 6;

open IFILE, $fnam or bailout("failed to open '$fnam': $!");

print "set old_statvalue [rlc get statvalue]\n";
print "set old_statmask  [rlc get statmask]\n";
print "\n";

print "rlc set statvalue 0x00\n";
print "rlc set statmask  \$rlink::STAT_DEFMASK\n";
print "\n";

while (<IFILE>) {
  chomp;
  s/--.*//;                                 # drop all -- style comments
  s/\s*$//;                                 # drop traing blanks
  next if m/^#/;

  # print "$_\n";

  my $cmd = $_;

  $cmd =~ s/^rsp/rr6/;			    # rsp -> rr6
  $cmd =~ s/^rpc/rr7/;			    # rpc -> rr7
  $cmd =~ s/^wsp/wr6/;			    # wsp -> wr6
  $cmd =~ s/^wpc/wr7/;			    # wpc -> wr7

  # C... comments -> write to rlc log --------------------------------
  if ($cmd =~ /^C(.*)/) {
    cmdlist_do();
    my $msg = $1;
    $msg =~ s/"/'/g;
    $msg =~ s/\[/\{/g;
    $msg =~ s/\]/\}/g;
    print "rlc log \"C $msg\"\n";

  # .tocmd,.tostp,.togo,.cerr,.merr -> ignore, like pi_rri -----------
  } elsif ($cmd =~ /^\.(tocmd|tostp|togo|[cm]err)\s+(\d*)$/) {
    print "# $cmd currently ignored\n";

  # .mode mode -> accept only 'pdpcp', quit otherwise ----------------
  } elsif ($cmd =~ /^\.mode\s+(.*)$/) {
    bailout("# FAIL: $cmd not supported") if ($1 ne "pdpcp");

  # .sdef s=ref[,msk] ------------------------------------------------
  } elsif ($cmd =~ /^\.sdef\s+s=([01]+),?([01]*)$/) {
    cmdlist_do();
    my $ref_sdef = oct("0b$1");
    my $msk_sdef = oct("0b$2");
    $msk_sdef = 0 unless defined $msk_sdef; # nothing ignored if not defined
    printf "rlc log \".sdef 0x%2.2x,0x%2.2x\"\n", $ref_sdef, $msk_sdef;
    printf "rlc set statvalue 0x%2.2x\n", $ref_sdef;
    printf "rlc set statmask  0x%2.2x\n", (0xff & ~$msk_sdef);

  # .rlmon,.rbmon ----------------------------------------------------
  } elsif ($cmd =~ /^\.(r[lb]mon)\s+(\d)$/) {
    cmdlist_do();
    print "rlc oob -$1 $2\n";

  # .scntl -----------------------------------------------------------
  } elsif ($cmd =~ /^\.scntl\s+(\d+)\s+(\d)$/) {
    cmdlist_do();
    print "rlc oob -sbcntl $1 $2\n";

  # .anena (0|1) -> rlink::anena n -----------------------------------
  } elsif ($cmd =~ /^\.anena\s+(\d)$/) {
    cmdlist_do();
    print "rlink::anena $1\n";
    print "rlc exec -attn\n";

  # .reset -----------------------------------------------------------
  } elsif ($cmd =~ /^\.reset$/) {
    cmdlist_do();
    print "rlc exec -init 0 1\n";

  # (write) data type commands: wrx,wps,wal,wah,wm,wmi,stapc ---
  # Note: 'stapc' must be decoded before 'sta' !!
  # Note: 'wibrb' must be handled separately
  # Note: 'wmi' must be matched before 'wm'
  } elsif ($cmd =~ /^(wr[0-7]|wps|wal|wah|wmi|wm|stapc)\s+([0-7]+)$/) {
    push @cmdlist, "-$1 0$2";

  # (write) data type commands: wmembe ---
  } elsif ($cmd =~ /^wmembe\s+([01]+)/) {
    my $val   = oct("0b$1");
    my $be    = $val & 0x3;
    my $stick = $val & 0x4;
    if ($stick == 0) {
      push @cmdlist, "-wmembe $be";
    } else {
      push @cmdlist, "-wmembe $be -stick";
    }

  # (read) [d=data] type commands: rrx,rps,rm,rmi --------------------
  # Note: 'rmi' must be matched before 'rm'
  } elsif ($cmd =~ /^(rr[0-7]|rps|rmi|rm)/) {
    push @cmdlist, "-$1 ";
    add_edata($');

  # bwm n ------------------------------------------------------------
  } elsif ($cmd =~ /^bwm\s+(\d+)$/) {
    my $nw = $1;
    push @cmdlist, "-bwm {";
    for (my $i=0; $i<$nw;) {
      my $dat = <IFILE>;
      $dat =~ s/--.*//;
      $dat =~ s/\s*//g;
      next if $dat =~ m/^#/;
      $cmdlist[-1] .= " 0$dat";
      $i++;
    }
    $cmdlist[-1] .= "}";
    cmdlist_do();

  # brm n ------------------------------------------------------------
  } elsif ($cmd =~ /^brm\s+(\d+)$/) {
    my $nw = $1;
    push @cmdlist, "-brm $1";
    my @data;
    my @mask;
    my $domask;
    for (my $i=0; $i<$nw;) {
      my $dat = <IFILE>;
      $dat =~ s/--.*//;
      $dat =~ s/\s*//g;
      next if $dat =~ m/^#/;
      if ($dat =~ m/d=([0-7]+)/ ) {
        push @data, "0$1";
        push @mask, "0177777";
      } elsif ($dat =~ m/d=-/) {
        push @data, "0";
        push @mask, "0";
        $domask = 1;
      } else {
        bailout("# FAIL: unsupported brm construct");
      }
      $i++;
    }
    $cmdlist[-1] .= " -edata {" . join(" ",@data) . "}";
    $cmdlist[-1] .= " {" . join(" ",@mask) . "}" if $domask;
    cmdlist_do();

  # wibr off data ---------------------------------------------------
  } elsif ($cmd =~ /^(wibr)\s+([0-7]+)\s+([0-7]+)$/) {
    push @cmdlist, "-$1 0$2 0$3";

  # ribr off [d=data] ------------------------------------------------
  } elsif ($cmd =~ /^(ribr)\s+([0-7]+)/) {
    push @cmdlist, "-$1 0$2";
    add_edata($');

  # simple action commands: sta,sto,step,cres,bres -------------------
  } elsif ($cmd =~ /^(sta|sto|step|cres|bres)$/) {
    my %cmdmap = (sta  => 'start',
                  sto  => 'stop',
                  step => 'step',
                  cres => 'creset',
                  bres => 'breset');
    push @cmdlist, sprintf "-%s", $cmdmap{$1};

  # wtgo -> wtcpu ----------------------------------------------------
  } elsif ($cmd =~ /^(wtgo)$/) {
    cmdlist_do();
    print "$cpu wtcpu $tout";
    print "\n";

  # wtlam apat -------------------------------------------------------
  # Note: apat currently ignored !!
  } elsif ($cmd =~ /^(wtlam)/) {
    cmdlist_do();
    print "$cpu wtcpu $tout";
    print "\n";

  # currently unimplemented commands ... -----------------------------
  } elsif ($cmd =~ /^(\.wait)/) {
    print "## TODO... $cmd\n";

  } else {
    bailout("# FAIL: no match for '$cmd'");
  }

  cmdlist_do() if scalar(@cmdlist) >= $cmax;

}

cmdlist_do();

print "\n";
print "rlc set statvalue \$old_statvalue\n";
print "rlc set statmask  \$old_statmask\n";

exit 0;

#-------------------------------------------------------------------------------
sub add_edata {
  my ($crest) = @_;
  $crest =~ s/\s+//;
  if ($crest =~ m/d=([0-7]+)/) {
    $cmdlist[-1] .= " -edata 0$1";
  }
}

#-------------------------------------------------------------------------------
sub cmdlist_do {
  return unless scalar(@cmdlist);

#  printf "$cpu cp \\\n";
  print "$cpu cp \\\n";
  while (scalar(@cmdlist)) {
    print "        ";
    print shift @cmdlist;
    print " \\\n" if scalar(@cmdlist);
  }
  print "\n";
  @cmdlist = ();
  return;
}

#-------------------------------------------------------------------------------

sub bailout {
  my ($msg) = @_;
  print STDERR "ticonv_pdpcp-F: $msg\n";
  exit 1;
}