mirror of
https://github.com/ISpillMyDrink/OpenSuperClone.git
synced 2026-05-03 13:30:49 +00:00
Julian Frohmüller
546 lines
15 KiB
Plaintext
546 lines
15 KiB
Plaintext
echo 'Western Digital ROYL fast patch module 0x02 in RAM.'
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echo 'This is to resolve a common WD slow issue, where the drive reads slow.'
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echo 'Definition of the "slow responding issue":'
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echo ' - The drive is reading very slow, but all reads are GOOD.'
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echo 'This may not help any if the reads are bad due to a weak or bad head.'
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echo 'WARNING: THIS IS DANGEROUS AND COULD KILL THE DRIVE!!!'
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echo 'USE AT YOUR OWN RISK!!!'
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echo 'Since this is a RAM patch, it SHOULD be safe, but nothing is guaranteed.'
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echo 'This patch only lasts until the drive is power cycled.'
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seti $printhelp = $printhelp
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seti $help = $help
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if $help = 1
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echo 'WD patch module 02 in ram for temporary instant slow fix'
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echo 'This patch erases a section of module 0x02 in RAM.'
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echo 'It may or may not work. It could possibly lock up the drive.'
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echo 'Note that this only lasts until the drive is power cycled'
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echo 'If you power cycle the drive, you will need to apply this patch again.'
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if $printhelp = 1
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exit 0
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endif
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echo 'Hit ENTER to continue...'
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userinput $choicestring
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previousscript
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endif
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echo ""
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include good_subroutines.osc
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# set a blank string variable to compare with user input
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# make sure not to set this anyplace else
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sets $null = ""
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# set this to itself for use with the menu system
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# make sure not to set this anyplace else
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# if it was not previously set it will = 0
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seti $using_menu = $using_menu
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echo "You are about to write to the RAM of the drive."
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echo "This should be safe, but there is no guarantee."
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echo 'Type "YES" to continue:'
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userinput $choicestring
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sets $safety = "YES"
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if $choicestring != $safety
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echo "You chose not to continue"
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previousscript
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endif
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# set these for later, and to make it easy to change if needed
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seti $ram_read_block_size = 65536
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seti $ram_start = 0x8000000
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seti $ram_size = 0x40000
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seti $max_ram_size = 0x2000000
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if $ram_size < $ram_read_block_size
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seti $ram_read_block_size = $ram_size
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endif
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seti $divide_check = $ram_read_block_size % 512
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if $divide_check != 0
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echo "ram_read_block_size is not dividable by 512"
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previousscript
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endif
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seti $patch_successful = 0
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gosub idle_drive
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gosub find_ram_size
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gosub dump_ram
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#gosub process_ram
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previousscript
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end
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subroutine find_ram_size
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gosub enable_vsc
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seti $find_ram_read_size = 0x200
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scratchpadsize $find_ram_read_size
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seti $position = $ram_start
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seti $remainder = $find_ram_read_size
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if $remainder != 0
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seti $write_offset = 0
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seti $read_size = $remainder
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hex
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echo "position=0x" $position " rsize=0x" $read_size
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decimal
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# vsc to prepare for ram read
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#echo "prepare to read ram"
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buffersize 0x200
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clearbuffer
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seti $offsetl = $position & 0xff
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seti $offsetm1 = $position > 8
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seti $offsetm1 = $offsetm1 & 0xff
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seti $offsetm2 = $position > 16
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seti $offsetm2 = $offsetm2 & 0xff
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seti $offseth = $position > 24
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seti $offseth = $offseth & 0xff
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seti $sizel = $read_size & 0xff
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seti $sizem1 = $read_size > 8
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seti $sizem1 = $sizem1 & 0xff
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seti $sizem2 = $read_size > 16
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seti $sizem2 = $sizem2 & 0xff
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seti $sizeh = $read_size > 24
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seti $sizeh = $sizeh & 0xff
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setbuffer 0
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13 00 01 00 $offsetl $offsetm1 $offsetm2 $offseth $sizel $sizem1 $sizem2 $sizeh
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endbuffer
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setwritepio
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ata28cmd 0xd6 0x01 0xbe 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# vsc to get the ram
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seti $sectors = $read_size / 512
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buffersize $read_size
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clearbuffer
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setreadpio
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#echo "reading ram"
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ata28cmd 0xd5 $sectors 0xbf 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# copy the buffer to the scratchpad
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copybuffertoscratchpad 0 $write_offset $read_size
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endif
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#printscratchpad 0 512
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seti $read_size = $find_ram_read_size
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while 1 = 1
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seti $position = $ram_start + $ram_size
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hex
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echo "position=0x" $position " size=0x" $read_size
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decimal
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# vsc to prepare for ram read
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#echo "prepare to read ram"
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buffersize 0x200
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clearbuffer
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seti $offsetl = $position & 0xff
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seti $offsetm1 = $position > 8
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seti $offsetm1 = $offsetm1 & 0xff
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seti $offsetm2 = $position > 16
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seti $offsetm2 = $offsetm2 & 0xff
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seti $offseth = $position > 24
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seti $offseth = $offseth & 0xff
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seti $sizel = $read_size & 0xff
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seti $sizem1 = $read_size > 8
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seti $sizem1 = $sizem1 & 0xff
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seti $sizem2 = $read_size > 16
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seti $sizem2 = $sizem2 & 0xff
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seti $sizeh = $read_size > 24
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seti $sizeh = $sizeh & 0xff
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setbuffer 0
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13 00 01 00 $offsetl $offsetm1 $offsetm2 $offseth $sizel $sizem1 $sizem2 $sizeh
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endbuffer
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hex
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#echo "keysector= 13 00 01 00 " $offsetl " " $offsetm1 " " $offsetm2 " " $offseth " " $sizel " " $sizem1 " " $sizem2 " " $sizeh
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setwritepio
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ata28cmd 0xd6 0x01 0xbe 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# vsc to get the ram
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seti $sectors = $read_size / 512
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buffersize $read_size
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clearbuffer
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setreadpio
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#echo "reading ram"
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ata28cmd 0xd5 $sectors 0xbf 0x4f 0xc2 0xa0 0xb0
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hex
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#echo "command= d5 " $sectors " bf 4f c2 a0 b0"
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decimal
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# check if command failed
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gosub status_check
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seti $comparedata = 0
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seti $found_match = 1
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while $comparedata < 512
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seti $cmp = buffer $comparedata qw
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seti $check = scratchpad $comparedata qw
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if $cmp != $check
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seti $found_match = 0
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break
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endif
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seti $comparedata = $comparedata + 8
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done
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if $found_match = 1
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hex
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echo "ram size is 0x" $ram_size
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decimal
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break
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endif
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seti $ram_size = $ram_size * 2
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if $ram_size > $max_ram_size
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hex
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echo "ram size not found, using default maximum size of 0x" $max_ram_size
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decimal
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seti $ram_size = $max_ram_size
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break
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endif
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done
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gosub disable_vsc
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endsubroutine
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subroutine dump_ram
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gosub enable_vsc
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scratchpadsize $ram_size
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seti $position = $ram_start
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seti $read_size = $ram_read_block_size
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seti $block_count = $ram_size / $ram_read_block_size
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seti $search_position = 0
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seti $count = 0
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while $count < $block_count
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hex
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echo "position=0x" $position " size=0x" $read_size
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decimal
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# vsc to prepare for ram read
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#echo "prepare to read ram"
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buffersize 0x200
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clearbuffer
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seti $offsetl = $position & 0xff
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seti $offsetm1 = $position > 8
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seti $offsetm1 = $offsetm1 & 0xff
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seti $offsetm2 = $position > 16
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seti $offsetm2 = $offsetm2 & 0xff
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seti $offseth = $position > 24
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seti $offseth = $offseth & 0xff
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seti $sizel = $read_size & 0xff
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seti $sizem1 = $read_size > 8
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seti $sizem1 = $sizem1 & 0xff
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seti $sizem2 = $read_size > 16
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seti $sizem2 = $sizem2 & 0xff
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seti $sizeh = $read_size > 24
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seti $sizeh = $sizeh & 0xff
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setbuffer 0
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13 00 01 00 $offsetl $offsetm1 $offsetm2 $offseth $sizel $sizem1 $sizem2 $sizeh
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endbuffer
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setwritepio
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ata28cmd 0xd6 0x01 0xbe 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# send again
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ata28cmd 0xd6 0x01 0xbe 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# vsc to get the ram
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seti $sectors = $read_size / 512
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buffersize $read_size
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clearbuffer
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setreadpio
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#echo "reading ram"
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ata28cmd 0xd5 $sectors 0xbf 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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seti $write_offset = $count * $read_size
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# copy the buffer to the scratchpad
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copybuffertoscratchpad 0 $write_offset $read_size
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gosub process_ram
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seti $count = $count + 1
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seti $position = $position + $ram_read_block_size
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done
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gosub disable_vsc
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echo "ram processing finished"
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if $patch_successful = 1
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echo "ram patch successful"
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else
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echo "ram patch failed"
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endif
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endsubroutine
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subroutine process_ram
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#echo "processing ram"
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sets $header_check = "ROYL"
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seti $search_end = $search_position + $ram_read_block_size
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seti $search_end = $search_end - 4096
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while $search_position < $search_end
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sets $header = scratchpad $search_position 4
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if $header = $header_check
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# process the module
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seti $working_offset = $search_position
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#echo "Header:"
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#printscratchpad $working_offset 4
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seti $working_offset = $search_position + 8
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seti $mod_id = scratchpad $working_offset w
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hex
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#echo "Module ID = 0x" $mod_id
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if $mod_id = 2
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# find how many sectors the module contains
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seti $working_offset = $search_position + 0xa
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seti $mod_length_sectors = scratchpad $working_offset
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seti $working_offset = $search_position + 0xb
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seti $tempnum = scratchpad $working_offset
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seti $tempnum = $tempnum > 8
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seti $mod_length_sectors = $mod_length_sectors + $tempnum
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#echo "Size in sectors = 0x" $mod_length_sectors
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seti $working_offset = $search_position + 0xc
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seti $checksum = scratchpad $working_offset dw
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#echo "32 bit checksum = 0x" $checksum
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seti $working_offset = $search_position + 0x10
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#echo "Mod version:"
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#printscratchpad $working_offset 8
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decimal
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seti $module_size = $mod_length_sectors * 512
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seti $calculated_checksum = 0
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seti $check_count = 0
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while $check_count < $module_size
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seti $working_offset = $search_position + $check_count
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if $working_offset > $search_end
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echo "end of module is past end of rom"
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break
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endif
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seti $dword = scratchpad $working_offset dw
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seti $calculated_checksum = $calculated_checksum + $dword
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seti $check_count = $check_count + 4
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# skip the actual checksum bytes
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if $check_count = 0xc
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seti $check_count = $check_count + 4
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endif
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done
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seti $calculated_checksum = $calculated_checksum & 0xffffffff
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seti $calculated_checksum = 0xffffffff - $calculated_checksum
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seti $calculated_checksum = $calculated_checksum + 1
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hex
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if $checksum = $calculated_checksum
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sets $checkstring = " calulated=0x" $calculated_checksum " (good)"
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echo "pos=0x" $search_position " ModID=0x" $mod_id " size=0x" $mod_length_sectors $checkstring
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seti $module_position = $search_position
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seti $module_length = $mod_length_sectors * 512
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gosub patch_module
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else
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sets $checkstring = " calulated=0x" $calculated_checksum " (bad)"
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endif
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decimal
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endif
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endif
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seti $search_position = $search_position + 512
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done
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endsubroutine
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subroutine patch_module
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seti $wposition = $module_position
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seti $wposition = $wposition + 0x8000000
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seti $write_size = $module_length
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hex
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echo "wposition=0x" $wposition " wsize=0x" $write_size
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decimal
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# vsc to prepare for ram write
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echo "prepare to write ram"
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buffersize 0x200
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clearbuffer
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seti $offsetl = $wposition & 0xff
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seti $offsetm1 = $wposition > 8
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seti $offsetm1 = $offsetm1 & 0xff
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seti $offsetm2 = $wposition > 16
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seti $offsetm2 = $offsetm2 & 0xff
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seti $offseth = $wposition > 24
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seti $offseth = $offseth & 0xff
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seti $sizel = $write_size & 0xff
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seti $sizem1 = $write_size > 8
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seti $sizem1 = $sizem1 & 0xff
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seti $sizem2 = $write_size > 16
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seti $sizem2 = $sizem2 & 0xff
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seti $sizeh = $write_size > 24
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seti $sizeh = $sizeh & 0xff
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setbuffer 0
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13 00 02 00 $offsetl $offsetm1 $offsetm2 $offseth $sizel $sizem1 $sizem2 $sizeh
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endbuffer
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hex
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#echo $offsetl " " $offsetm1 " " $offsetm2 " " $offseth " " $sizel " " $sizem1 " " $sizem2 " " $sizeh
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decimal
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setwritepio
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ata28cmd 0xd6 0x01 0xbe 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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# vsc to get the ram
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seti $sectors = $read_size / 512
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buffersize $module_length
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clearbuffer
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copyscratchpadtobuffer $module_position 0 $module_length
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#printbuffer 0 $module_length
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gosub process_mod02
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# calculate new checksum and insert it
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seti $calculated_checksum = 0
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gosub calculate_checksum_buffer
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hex
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echo "Calculated Checksum = 0x" $calculated_checksum
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decimal
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seti $b1 = $calculated_checksum & 0xff
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seti $calculated_checksum = $calculated_checksum > 8
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seti $b2 = $calculated_checksum & 0xff
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seti $calculated_checksum = $calculated_checksum > 8
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seti $b3 = $calculated_checksum & 0xff
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seti $calculated_checksum = $calculated_checksum > 8
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seti $b4 = $calculated_checksum & 0xff
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setbuffer 0x0c
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$b1 $b2 $b3 $b4
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endbuffer
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setwritepio
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echo "writing ram"
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ata28cmd 0xd6 $mod_length_sectors 0xbf 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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endsubroutine
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subroutine process_mod02
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# process the module
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seti $total_records = buffer 0x30 w
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echo "Total records = " $total_records
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# process the data records
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seti $rcount = 0
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while $rcount < $total_records
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seti $offset = $rcount * 4
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seti $rcount = $rcount + 1
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seti $offset = $offset + 0x32
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seti $record_offset = buffer $offset w
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seti $offset = $offset + 2
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seti $record_size = buffer $offset w
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# process record 27 (slow fix)
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if $rcount = 27
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echo "Data record #" $rcount ":"
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printbuffer $record_offset $record_size
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seti $erase = 0
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while $erase < $record_size
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seti $erase_offset = $record_offset + $erase
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setbuffer $erase_offset
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00
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endbuffer
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seti $erase = $erase + 1
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done
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echo "Data record #" $rcount " after patch:"
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printbuffer $record_offset $record_size
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seti $patch_successful = 1
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endif
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done
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endsubroutine
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subroutine calculate_checksum_buffer
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seti $calculated_checksum = 0
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seti $ccount = 0
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while $ccount < $module_length
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seti $dword = buffer $ccount dw
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seti $calculated_checksum = $calculated_checksum + $dword
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seti $ccount = $ccount + 4
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# skip the actual checksum bytes
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if $ccount = 0xc
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seti $ccount = $ccount + 4
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endif
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done
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seti $calculated_checksum = $calculated_checksum & 0xffffffff
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seti $calculated_checksum = 0xffffffff - $calculated_checksum
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seti $calculated_checksum = $calculated_checksum + 1
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endsubroutine
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subroutine idle_drive
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echo "attempting to idle drive"
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seti $idle_tries = 0
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while $idle_tries < 100
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seti $idle_tries = $idle_tries + 1
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echo "idle attempt " $idle_tries
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gettime
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seti $startreadtime = $time
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gosub idle
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gosub idle
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gettime
|
|
seti $endreadtime = $time
|
|
seti $elapsedtime = $endreadtime - $startreadtime
|
|
if $elapsedtime < 100000
|
|
break
|
|
endif
|
|
done
|
|
endsubroutine
|
|
|
|
|
|
subroutine idle
|
|
buffersize 0
|
|
setreadpio
|
|
# set the count to 0
|
|
seti $count = 0
|
|
# set the LBA for the unload command
|
|
seti $LBAlow = 0x4c
|
|
seti $LBAmid = 0x4e
|
|
seti $LBAhigh = 0x55
|
|
# set features to unload
|
|
seti $features = 0x44
|
|
# set device bits 7(compatibility) 5(compatibility)
|
|
seti $device = 0xa0
|
|
# set the command for idle immediate
|
|
seti $atacommand = 0xe1
|
|
# perform the command
|
|
ata28cmd $features $count $LBAlow $LBAmid $LBAhigh $device $atacommand
|
|
gosub status_check
|
|
endsubroutine
|
|
|
|
|
|
subroutine enable_vsc
|
|
# enable vendor specific commands
|
|
echo "enable vsc"
|
|
buffersize 0
|
|
setreadpio
|
|
ata28cmd 0x45 0x0b 0x00 0x44 0x57 0xa0 0x80
|
|
# check if command failed
|
|
gosub status_check
|
|
endsubroutine
|
|
|
|
|
|
subroutine disable_vsc
|
|
# disable vendor specific commands
|
|
echo "disable vsc"
|
|
buffersize 0
|
|
setreadpio
|
|
ata28cmd 0x44 0x0b 0x00 0x44 0x57 0xa0 0x80
|
|
# check if command failed
|
|
gosub status_check
|
|
endsubroutine
|