package/broadcom-wl/src/kmod/patchtable.pl

   1 #!/usr/bin/perl
   2 use strict;
   3
   4 my $TABLE = pack("V", 0xbadc0ded);
   5 my $TABLE_SIZE = 512;
   6 my $SLT1 = "\x01\x00\x00\x00";
   7 my $SLT2 = "\x02\x00\x00\x00";
   8 my $ACKW = "\x03\x00\x00\x00";
   9 my $PTABLE_END = "\xff\xff\xff\xff";
  10
  11 my $addr = "";
  12 my $opcode = "";
  13 my $function = "";
  14
  15 sub add_entry {
  16         my $key = shift;
  17         my $value = shift;
  18         my $default = shift;
  19
  20         $TABLE .= $key;
  21         $TABLE .= pack("V", $value);
  22         $TABLE .= pack("V", $default);
  23 }
  24
  25 while (<>) {
  26         $addr = $opcode = "";
  27         /^\w{8}\s*<(.*)>:$/ and $function = $1;
  28         /^\s*(\w+):\s*(\w{8})\s*/ and do {
  29                 $addr = $1;
  30                 $opcode = $2;
  31         };
  32
  33         ($function eq 'wlc_update_slot_timing') and do {
  34                 # li    a2,9    -- short slot time
  35                 ($opcode eq '24060009') and add_entry($SLT1, hex($addr), hex($opcode));
  36                 # li    v0,519  -- 510 + short slot time
  37                 ($opcode eq '24020207') and add_entry($SLT2, hex($addr), hex($opcode));
  38
  39                 # li    a2,20   -- long slot time
  40                 ($opcode eq '24060014') and add_entry($SLT1, hex($addr), hex($opcode));
  41                 # li    v0,530  -- 510 + long slot time
  42                 ($opcode eq '24020212') and add_entry($SLT2, hex($addr), hex($opcode));
  43         };
  44         ($function eq 'wlc_d11hdrs') and do {
  45                 # ori   s6,s6,0x1 -- ack flag (new)
  46                 ($opcode eq '36d60001') and add_entry($ACKW, hex($addr), hex($opcode));
  47                 # ori   s3,s3,0x1 -- ack flag (old)
  48                 ($opcode eq '36730001') and add_entry($ACKW, hex($addr), hex($opcode));
  49         }
  50 }
  51
  52 $TABLE .= $PTABLE_END;
  53 $TABLE .= ("\x00" x ($TABLE_SIZE - length($TABLE)));
  54 print $TABLE;