| 1 | ; Project name : XTIDE Universal BIOS
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| 2 | ; Description : Macros for memory mapped ATA controllers.
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| 3 |
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| 4 | ;
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| 5 | ; XTIDE Universal BIOS and Associated Tools
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| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
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| 7 | ;
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| 8 | ; This program is free software; you can redistribute it and/or modify
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| 9 | ; it under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2 of the License, or
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| 11 | ; (at your option) any later version.
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| 12 | ;
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| 13 | ; This program is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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| 18 | ;
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| 19 |
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| 20 | %ifndef MEM_MAPPED_IDE_INC
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| 21 | %define MEM_MAPPED_IDE_INC
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| 22 |
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| 23 | JRIDE_SECTOR_ACCESS_WINDOW_OFFSET EQU 3C00h ; 512 byte IDE Sector Access Window
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| 24 | JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET EQU 3E00h ; 8 byte CS0 IDE Register Window
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| 25 | JRIDE_CONTROL_BLOCK_REGISTER_WINDOW_OFFSET EQU 3E08h ; 8 byte CS1 IDE Register Window
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| 26 | JRIDE_SECTOR_ACCESS_WINDOW_SIZE EQU 512 ; 512 bytes
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| 27 |
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| 28 |
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| 29 |
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| 30 | ;--------------------------------------------------------------------
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| 31 | ; OUTPUT_AL_TO_IDE_REGISTER_IN_DL
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| 32 | ; JUMP_TO_OUTPUT_AL_TO_IDE_REGISTER_IN_DL
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| 33 | ; OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER_IN_DL
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| 34 | ; Parameters:
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| 35 | ; AL: Byte to output
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| 36 | ; %1: IDE Register (OUTPUT_AL_TO_IDE_REGISTER)
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| 37 | ; IDE Control Block Register (OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER)
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| 38 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 39 | ; Returns:
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| 40 | ; Nothing
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| 41 | ; Corrupts registers:
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| 42 | ; BX, DX
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| 43 | ;--------------------------------------------------------------------
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| 44 | %unmacro OUTPUT_AL_TO_IDE_REGISTER 1
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| 45 | %macro OUTPUT_AL_TO_IDE_REGISTER 1
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| 46 | mov [cs:JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET+%1], al
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| 47 | %endmacro
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| 48 |
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| 49 | %unmacro JUMP_TO_OUTPUT_AL_TO_IDE_REGISTER 1
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| 50 | %macro JUMP_TO_OUTPUT_AL_TO_IDE_REGISTER 1
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| 51 | OUTPUT_AL_TO_IDE_REGISTER %1
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| 52 | ret
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| 53 | %endmacro
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| 54 |
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| 55 | %unmacro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1
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| 56 | %macro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1
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| 57 | mov [cs:JRIDE_CONTROL_BLOCK_REGISTER_WINDOW_OFFSET+%1], al
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| 58 | %endmacro
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| 59 |
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| 60 |
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| 61 | ;--------------------------------------------------------------------
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| 62 | ; INPUT_TO_AL_FROM_IDE_REGISTER
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| 63 | ; JUMP_TO_INPUT_TO_AL_FROM_IDE_REGISTER
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| 64 | ; Parameters:
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| 65 | ; %1: IDE Register
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| 66 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
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| 67 | ; Returns:
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| 68 | ; AL: Inputted byte
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| 69 | ; Corrupts registers:
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| 70 | ; BX, DX
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| 71 | ;--------------------------------------------------------------------
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| 72 | %unmacro INPUT_TO_AL_FROM_IDE_REGISTER 1
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| 73 | %macro INPUT_TO_AL_FROM_IDE_REGISTER 1
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| 74 | mov al, [cs:JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET+%1]
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| 75 | %endmacro
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| 76 |
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| 77 | %unmacro JUMP_TO_INPUT_TO_AL_FROM_IDE_REGISTER 1
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| 78 | %macro JUMP_TO_INPUT_TO_AL_FROM_IDE_REGISTER 1
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| 79 | INPUT_TO_AL_FROM_IDE_REGISTER %1
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| 80 | ret
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| 81 | %endmacro
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| 82 |
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| 83 |
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| 84 | %endif ; MEM_MAPPED_IDE_INC
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