View source for NMT C200 Deep

== C200 Deeper thoughts ==

The /tmp/setting.txt file has the following:

 bluray_region=a
 bluray_region_cnt=1
 dvd_region=1
 dvd_region_cnt=1

Can we change that directly and it'll work (for the session)? Can we use the pflash tool to write it to nvram?

C200 has Remote control codes:

 slow+1683 : Set bluray region
 slow+1663 : Set DVD region

Are there more? 

Ah not in lib_syabas_framework.so there is not. If you want to look for them, the sequence is:

 54 F0 00 00  31 00 00 00  36 00 00 00  36 00 00 00  33 00 00 00
 Slow          1            6            6            3


Actually, running this perl script:

 # find . -type f -print | xargs -n 1 perl -e '$file=@ARGV[0] ; $A=`cat $file` ; while ($A =~ /\x54\xf0\x00\x00/g) { $pos = length $`; $pos += 0; printf "$file: %X\n", $pos; }' 
 ./sigma/lib/libdcchd_brd.so: 1410BC
 ./sigma/lib/libdirect-1.0.so.0.0: 6853C
 ./sigma/lib/libamp_test.so: 4277C
 ./sigma/lib/libamp_test.so: 45EC8
 ./sigma/lib/libamp_test.so: 46C98
 ./sigma/lib/libamp_test.so: 477F8
 ./sigma/lib/libamp_test.so: 4782C
 ./sigma/lib/libamp_test.so: 47964
 ./sigma/lib/libamp_test.so: 49504
 ./sigma/lib/libamp_test.so: 49538
 ./sigma/lib/libamp_test.so: 49670
 ./sigma/lib/libamp_test.so: 4A19C
 ./sigma/lib/libamp_test.so: 4A1D0
 ./sigma/lib/libamp_test.so: 4A238
 ./sigma/lib/libamp_test.so: 4BB98
 ./sigma/lib/libamp_test.so: 4BC00
 ./sigma/bdj/jvm/lib/libdirectfbawt.so: 16764
 ./app/lib/libsyabas_framework_lib.so: 9530
 ./app/lib/libsyabas_framework_lib.so: 9544

Probably are false positives in there, but those could be worth inspecting.




=== Region Free ===

For DVDs, the region is set using:

 ./sigma/bin/drive_ops

However, no real need to poke in there, since if your drive is rpc1, it doesn't matter. If your drive ISN'T rpc1, you will have only 5 changes enforced by the drive.

Bluray region is handled by:

 ./app/lib/libsyabas_framework_lib.so


If you wanted to do it the tedious way:


 ▒│.text:00003CC0                 lw      $t9, (xosd_command_stub - 0x215A0)($gp)
 ▒│.text:00003CC4                 li      $a3, 0x2000
 ▒│.text:00003CC8                 sw      $v0, 0x208+var_1F4($sp)
 ▒│.text:00003CCC                 move    $a0, $0   
 ▒│.text:00003CD0                 move    $a1, $s7
 ▒│.text:00003CD4                 sw      $s3, 0x208+var_1F0($sp)
 ▒│.text:00003CD8                 jalr    $t9
 ▒│.text:00003CDC                 sw      $0, 0x208+var_1F8($sp)
 ▒│.text:00003CE0                 lw      $gp, 0x208+var_1E8($sp)
 ▒│.text:00003CE4                 addiu   $a1, $sp, 0x208+var_1E0
 ▒│.text:00003CE8                 lw      $v0, (CreateDialog - 0x215A0)($gp)
 ▒│.text:00003CEC                 lw      $t9, (xwrite_str_stub - 0x215A0)($gp)
 ▒│.text:00003CF0                 addiu   $a0, $v0, 0x89B4  # "bluray region"
 ▒│.text:00003CF4                 lw      $v0, 0x208+var_1D8_bluray_cnt($sp)
 ▒│.text:00003CF8                 addiu   $v0, 1           # Might want to NOT increase me
 ▒│.text:00003CFC                 jalr    $t9
 ▒│.text:00003D00                 sw      $v0, 0x208+var_1D8_bluray_cnt($sp)
 ▒│.text:00003D04                 lw      $gp, 0x208+var_1E8($sp)
 ▒│.text:00003D08                 addiu   $a0, $fp, 0x208+var_7844
 ▒│.text:00003D0C                 lw      $t9, (off_196C8 - 0x215A0)($gp)  # sub_79d0
 ▒│.text:00003D10                 jalr    $t9
 ▒│.text:00003D14                 addiu   $a1, $sp, 0x208+var_1D8_bluray_cnt
 ▒│.text:00003D18                 lw      $gp, 0x208+var_1E8($sp)
 ▒│.text:00003D1C                 lw      $t9, (xsave_commit_stub - 0x215A0)($gp)
 ▒│.text:00003D20                 jalr    $t9
 ▒│.text:00003D24                 nop
 ▒│.text:00003D28                 li      $v0, 1
 ▒│.text:00003D2C                 xori    $v0, 1
 ▒│.text:00003D30                 lw      $gp, 0x208+var_1E8($sp)
 ▒│.text:00003D34                 b       bluray_cancelORerror
 ▒│.text:00003D38                 sltu    $s1, $0, $v0
 
 .text:00003CF0 B4 89 44 24 30 00 A2 8F '''01''' 00 42 24 09 F8 20 03


 ▒│.text:00004030                 lw      $v0, (CreateDialog - 0x215A0)($gp)
 ▒│.text:00004034                 lw      $a2, (CreateDialog - 0x215A0)($gp)
 ▒│.text:00004038                 lw      $t9, (xsnprintf_stub - 0x215A0)($gp)
 ▒│.text:0000403C                 addiu   $v0, 0x8D1C      # "/dev/sr0" 
 ▒│.text:00004040                 addiu   $a2, 0x8D00      # "drive_ops setregion %d %s"
 ▒│.text:00004044                 li      $a1, 0x23 
 ▒│.text:00004048                 jalr    $t9   
 ▒│.text:0000404C                 sw      $v0, 0x208+var_1F8($sp)  
 ▒│.text:00004050                 lw      $gp, 0x208+var_1E8($sp) 
 ▒│.text:00004054                 lw      $t9, (xsystem_stub - 0x215A0)($gp)
 ▒│.text:00004058                 jalr    $t9 
 ▒│.text:0000405C                 move    $a0, $s0 
 ▒│.text:00004060                 bnez    $v0, dvd_systemfailed  
 ▒│.text:00004064                 lw      $gp, 0x208+var_1E8($sp) 
 ▒│.text:00004068                 lw      $v0, 0x208+var_1D8_DVD_cnt($sp) 
 ▒│.text:0000406C                 lw      $a0, (CreateDialog - 0x215A0)($gp) 
 ▒│.text:00004070                 lw      $t9, (xsub_79d0 - 0x215A0)($gp)
 ▒│.text:00004074                 addiu   $v0, 1           # Might want to NOT increase here  
 ▒│.text:00004078                 addiu   $a0, 0x8D28      # "dvd_region" 
 ▒│.text:0000407C                 addiu   $a1, $sp, 0x208+var_1DC 
 ▒│.text:00004080                 jalr    $t9 
 
 .text:00004070 28 81 99 8F '''01''' 00 42 24 28 8D 82 24 2C 00 A5 27