mirror of
https://github.com/ISpillMyDrink/OpenSuperClone.git
synced 2026-05-03 21:40:33 +00:00
Julian Frohmüller
298 lines
6.4 KiB
Plaintext
298 lines
6.4 KiB
Plaintext
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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 read CHS'
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echo 'This requires the text variable "file" to be set.'
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echo '"file" is the name of the file to dump the data.'
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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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# set the file name to be read from
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while 1 = 1
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variablecheck $file
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if $error_level < 16
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seti $ask = 1
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elseif $using_menu = 1
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seti $ask = 1
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endif
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if $ask = 1
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echo "Enter file name:"
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userinput $choicestring
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if $choicestring != $null
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sets $file = $choicestring
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break
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else
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echo "Choice cannot be blank!"
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endif
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else
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break
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endif
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done
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sets $base_file_name = $file
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deletefile $file
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# set these for later, and to make it easy to change if needed
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seti $read_block_size = 512
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seti $cylinder_start = -1
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seti $sector_start = 1
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seti $head_start = 0
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# this is only needed to help keep the script happy
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seti $divide_check = $read_block_size % 512
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if $divide_check != 0
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echo "read_block_size is not dividable by 512"
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previousscript
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endif
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seti $command_failed = 0
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seti $total_heads = 0
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seti $head_bitmap = 0
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gosub read_data_table
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seti $current_head = $head_start
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while $current_head < $total_heads
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seti $total_offset = 0
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sets $full_file = $base_file_name $current_head
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deletefile $full_file
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seti $cylinder = $cylinder_start
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seti $head_active = $head_bitmap & 1
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if $head_active = 1
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seti $last_cylinder = 0 - $negative_cylinders
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while $cylinder >= $last_cylinder
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sets $file = $base_file_name $current_head $cylinder
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deletefile $file
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seti $sector = $sector_start
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seti $head = $current_head
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gosub read_chs
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seti $cylinder = $cylinder - 1
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done
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endif
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seti $current_head = $current_head + 1
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seti $head_bitmap = $head_bitmap > 1
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done
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previousscript
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end
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subroutine read_data_table
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gosub enable_vsc
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# vsc to prepare to get drive data table
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echo "prepare to get data table"
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buffersize 0x200
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clearbuffer
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setbuffer 0
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0d 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
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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 to get drive data table
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echo "getting data table"
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buffersize 0x200
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clearbuffer
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setreadpio
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ata28cmd 0xd5 0x01 0xbf 0x4f 0xc2 0xa0 0xb0
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# check if command failed
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gosub status_check
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copybuffertoscratchpad 0 0 512
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gosub disable_vsc
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echo "data table read done"
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printscratchpad 0 512
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seti $value = 0
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seti $offset = 29
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seti $bytes = 1
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gosub process_offset
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seti $total_heads = $value
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seti $offset = 31
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seti $bytes = 1
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gosub process_offset
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seti $head_bitmap = $value
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seti $offset = 36
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seti $bytes = 2
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gosub process_offset
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seti $negative_cylinders = $value
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endsubroutine
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subroutine process_offset
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if $bytes = 1
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seti $value = scratchpad $offset b
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elseif $bytes = 2
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seti $value = scratchpad $offset w
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elseif $bytes = 4
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seti $value = scratchpad $offset dw
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elseif $bytes = 8
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seti $value = scratchpad $offset qw
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else
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seti $value = 0
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echo "BYTE COUNT OUT OF RANGE"
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endif
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hex
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sets $offset_string = "0x" $offset
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sets $value_string = "0x" $value
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sets $bytes_string = "0x" $bytes
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decimal
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echo "offset=" $offset " (" $offset_string ") value=" $value " (" $value_string ")(" $bytes " bytes)"
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endsubroutine
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subroutine read_chs
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gosub enable_vsc
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seti $read_size = $read_block_size
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seti $count = 0
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while 1 = 1
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echo "head=" $head " cylinder=" $cylinder " sector=" $sector
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# vsc to prepare for chs read
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#echo "prepare to read chs"
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buffersize 0x200
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clearbuffer
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seti $offsetl = $cylinder & 0xff
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seti $offsetm1 = $cylinder > 8
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seti $offsetm1 = $offsetm1 & 0xff
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seti $offsetm2 = $cylinder > 16
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seti $offsetm2 = $offsetm2 & 0xff
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seti $offseth = $cylinder > 24
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seti $offseth = $offseth & 0xff
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seti $sectorl = $sector & 0xff
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seti $sectorh = $sector > 8
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seti $sectorh = $sectorh & 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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0c 00 01 00 $offsetl $offsetm1 $offsetm2 $offseth $head 00 $sectorl $sectorh $sizel $sizem1 $sizem2 $sizeh
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endbuffer
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hex
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#echo "keysector= 0c 00 01 00 " $offsetl " " $offsetm1 " " $offsetm2 " " $offseth " " $head " 00 " $sectorl " " $sectorh " " $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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#echo "command= d6 01 be 4f c2 a0 b0"
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decimal
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# check if command failed
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gosub status_check_no_stop
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if $command_failed != 0
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break
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endif
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# vsc to read chs
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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 chs"
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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_no_stop
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if $command_failed != 0
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break
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endif
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seti $write_offset = $count * $read_size
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# write the buffer to file
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writebuffer $file 0 $write_offset $read_size
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writebuffer $full_file 0 $total_offset $read_size
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seti $total_offset = $total_offset + $read_size
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seti $count = $count + 1
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seti $sector = $sector + 1
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done
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gosub disable_vsc
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#echo "chs read done"
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endsubroutine
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subroutine status_check_no_stop
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seti $command_failed = 0
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gosub check_command_status
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if $command_failed = 1
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echo "Command failed!"
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gosub show_sense_data
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gosub show_ata_return_status
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endif
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endsubroutine
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subroutine enable_vsc
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# enable vendor specific commands
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echo "enable vsc"
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buffersize 0
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setreadpio
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ata28cmd 0x45 0x0b 0x00 0x44 0x57 0xa0 0x80
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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 disable_vsc
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# disable vendor specific commands
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echo "disable vsc"
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buffersize 0
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setreadpio
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ata28cmd 0x44 0x0b 0x00 0x44 0x57 0xa0 0x80
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# check if command failed
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gosub status_check
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endsubroutine
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