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#!/usr/bin/env perl
use strict;
use IO::Socket::INET;
use Data::Dumper;
#use IO::Socket::Timeout;
#
#
my $prompt= '> ';
sub my_readline_worker($)
{
my $sock=shift;
my $ret="";
my $d="";
while (1) {
return $ret if $sock->read($d,1)!=1;
next if $d eq "\n";
$ret.=$d;
return $ret if $d eq "\r";
return $ret if $ret =~ /> $/;
}
}
sub my_readline($)
{
my $sock=shift;
my $ret=my_readline_worker($sock);
#print $ret."\n";
return $ret;
}
sub wait_for_prompt($)
{
my $ocd=shift;
1 while (my_readline($ocd) ne $prompt);
}
sub open_ocd($) {
my $addr=shift;
my $sock = IO::Socket::INET->new( $addr);
wait_for_prompt($sock);
return $sock;
}
sub write_reg($$$)
{
my ($ocd,$r,$v)=@_;
$ocd->printf("mww 0x%08x 0x%08x\n",$r,$v);
wait_for_prompt($ocd);
}
sub read_reg($$)
{
my ($ocd,$r)=@_;
my $ret;
$ocd->printf("mdw 0x%08x\n",$r);
$ret=my_readline($ocd);
$ret=my_readline($ocd);
wait_for_prompt($ocd);
$ret =~ s/[\r\n\s]//g;
if ($ret =~ /0x[0-9A-Fa-f]+:([0-9a-fA-F]+)/) {
return hex($1);
}
return undef;
}
sub dir_get($) {
my $ocd=shift;
return read_reg($ocd,0x50000514);
}
sub dir_set($$) {
my ($ocd,$v)=@_;
write_reg($ocd,0x50000518,$v);
}
sub dir_clr($$) {
my ($ocd,$v)=@_;
write_reg($ocd,0x5000051c,$v);
}
sub io_set($$) {
my ($ocd,$v)=@_;
write_reg($ocd,0x50000508,$v);
}
sub io_clr($$) {
my ($ocd,$v)=@_;
write_reg($ocd,0x5000050c,$v);
}
sub io_get($) {
my $ocd=shift;
return read_reg($ocd,0x50000510);
}
my $ocd=open_ocd('127.0.0.1:4444' );
my $ov=-1;
while (1) {
my $v=io_get($ocd);
next if $v == $ov;
$ov=$v;
printf "%b %b %b %b %04b %04b %04b %04b %04b %04b %04b %04b\n",
($v >>20) &0x1,
($v >>19) &0x1,
($v >>18) &0x1,
($v >>17) &0x1,
($v >>24) &0xf,
($v >>20) &0xf,
($v >>16) &0xf,
($v >>12) &0xf,
($v >>8) &0xf,
($v >>4) &0xf,
($v) &0xf;
}
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