[400] | 1 | ; Project name : XTIDE Universal BIOS |
---|
| 2 | ; Description : Macros for normal I/O mapped ATA controllers. |
---|
| 3 | |
---|
| 4 | ; |
---|
[526] | 5 | ; XTIDE Universal BIOS and Associated Tools |
---|
| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
---|
[400] | 7 | ; |
---|
| 8 | ; This program is free software; you can redistribute it and/or modify |
---|
| 9 | ; it under the terms of the GNU General Public License as published by |
---|
| 10 | ; the Free Software Foundation; either version 2 of the License, or |
---|
| 11 | ; (at your option) any later version. |
---|
[526] | 12 | ; |
---|
[400] | 13 | ; This program is distributed in the hope that it will be useful, |
---|
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
[526] | 16 | ; GNU General Public License for more details. |
---|
[400] | 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
---|
| 18 | ; |
---|
| 19 | |
---|
| 20 | %ifndef IDE_IO_INC |
---|
| 21 | %define IDE_IO_INC |
---|
| 22 | |
---|
| 23 | ;-------------------------------------------------------------------- |
---|
[473] | 24 | ; OUTPUT_AL_TO_IDE_REGISTER |
---|
| 25 | ; OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER |
---|
[400] | 26 | ; Parameters: |
---|
| 27 | ; AL: Byte to output |
---|
| 28 | ; %1: IDE Register (OUTPUT_AL_TO_IDE_REGISTER) |
---|
| 29 | ; IDE Control Block Register (OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER) |
---|
| 30 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
---|
| 31 | ; Returns: |
---|
| 32 | ; Nothing |
---|
| 33 | ; Corrupts registers: |
---|
| 34 | ; BX, DX |
---|
| 35 | ;-------------------------------------------------------------------- |
---|
| 36 | %macro OUTPUT_AL_TO_IDE_REGISTER 1 |
---|
[473] | 37 | %ifndef MODULE_8BIT_IDE ; Standard IDE controllers only |
---|
| 38 | |
---|
| 39 | %ifnidni %1, dx |
---|
| 40 | mov dx, %1 |
---|
| 41 | %endif |
---|
| 42 | add dx, [di+DPT.wBasePort] |
---|
| 43 | out dx, al |
---|
| 44 | |
---|
| 45 | %else ; Register translations required |
---|
| 46 | |
---|
| 47 | %ifnidni %1, dl |
---|
| 48 | mov dl, %1 |
---|
| 49 | %endif |
---|
[400] | 50 | call IdeIO_OutputALtoIdeRegisterInDL |
---|
| 51 | |
---|
| 52 | %endif |
---|
| 53 | %endmacro |
---|
| 54 | |
---|
[473] | 55 | |
---|
[400] | 56 | %macro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1 |
---|
[473] | 57 | %ifndef MODULE_8BIT_IDE ; Standard IDE controllers only |
---|
| 58 | |
---|
[592] | 59 | eMOVZX bx, [di+DPT.bIdevarsOffset] |
---|
[473] | 60 | %ifnidni %1, dx |
---|
| 61 | mov dx, %1 |
---|
| 62 | %endif |
---|
| 63 | add dx, [cs:bx+IDEVARS.wControlBlockPort] |
---|
| 64 | out dx, al |
---|
| 65 | |
---|
| 66 | %else ; Register translations required |
---|
| 67 | |
---|
| 68 | %ifnidni %1, dl |
---|
| 69 | mov dl, %1 |
---|
| 70 | %endif |
---|
| 71 | call IdeIO_OutputALtoIdeControlBlockRegisterInDL |
---|
| 72 | |
---|
[400] | 73 | %endif |
---|
| 74 | %endmacro |
---|
| 75 | |
---|
| 76 | |
---|
| 77 | ;-------------------------------------------------------------------- |
---|
| 78 | ; INPUT_TO_AL_FROM_IDE_REGISTER |
---|
| 79 | ; Parameters: |
---|
| 80 | ; %1: IDE Register |
---|
| 81 | ; DS:DI: Ptr to DPT (in RAMVARS segment) |
---|
| 82 | ; Returns: |
---|
| 83 | ; AL: Inputted byte |
---|
| 84 | ; Corrupts registers: |
---|
| 85 | ; BX, DX |
---|
| 86 | ;-------------------------------------------------------------------- |
---|
| 87 | %macro INPUT_TO_AL_FROM_IDE_REGISTER 1 |
---|
[473] | 88 | %ifndef MODULE_8BIT_IDE ; Standard IDE controllers only |
---|
| 89 | |
---|
| 90 | %ifnidni %1, dx |
---|
| 91 | mov dx, %1 |
---|
| 92 | %endif |
---|
| 93 | add dx, [di+DPT.wBasePort] |
---|
| 94 | in al, dx |
---|
| 95 | |
---|
| 96 | %else ; Register translations required |
---|
| 97 | |
---|
| 98 | %ifnidni %1, dl |
---|
| 99 | mov dl, %1 |
---|
| 100 | %endif |
---|
[618] | 101 | call IdeIO_InputToALfromIdeRegisterInDL |
---|
[473] | 102 | |
---|
[400] | 103 | %endif |
---|
| 104 | %endmacro |
---|
| 105 | |
---|
| 106 | |
---|
[589] | 107 | ;-------------------------------------------------------------------- |
---|
| 108 | ; UNROLL_SECTORS_IN_CX_TO_DWORDS |
---|
| 109 | ; UNROLL_SECTORS_IN_CX_TO_QWORDS |
---|
| 110 | ; UNROLL_SECTORS_IN_CX_TO_OWORDS |
---|
| 111 | ; Parameters: |
---|
| 112 | ; CX: Number of sectors in block |
---|
| 113 | ; Returns: |
---|
| 114 | ; CX: Number of DWORDs, QWORDs or OWORDs in block |
---|
| 115 | ; Corrupts registers: |
---|
| 116 | ; Nothing |
---|
| 117 | ;-------------------------------------------------------------------- |
---|
| 118 | %macro UNROLL_SECTORS_IN_CX_TO_DWORDS 0 |
---|
| 119 | %ifdef USE_186 |
---|
| 120 | shl cx, 7 |
---|
| 121 | %else |
---|
| 122 | xchg cl, ch ; Sectors to WORDs (SHL CX, 8) |
---|
| 123 | shr cx, 1 |
---|
| 124 | %endif |
---|
| 125 | %endmacro |
---|
| 126 | |
---|
| 127 | %macro UNROLL_SECTORS_IN_CX_TO_QWORDS 0 |
---|
| 128 | %ifdef USE_186 |
---|
| 129 | shl cx, 6 |
---|
| 130 | %else |
---|
| 131 | UNROLL_SECTORS_IN_CX_TO_DWORDS |
---|
| 132 | shr cx, 1 |
---|
| 133 | %endif |
---|
| 134 | %endmacro |
---|
| 135 | |
---|
| 136 | %macro UNROLL_SECTORS_IN_CX_TO_OWORDS 0 |
---|
| 137 | %ifdef USE_186 |
---|
| 138 | shl cx, 5 |
---|
| 139 | %else |
---|
| 140 | ; UNROLL_SECTORS_IN_CX_TO_QWORDS |
---|
| 141 | ; shr cx, 1 |
---|
| 142 | mov ch, cl ; 2 bytes shorter but possibly slower |
---|
| 143 | mov cl, 3 |
---|
| 144 | shr cx, cl |
---|
| 145 | %endif |
---|
| 146 | %endmacro |
---|
| 147 | |
---|
[623] | 148 | %macro UNROLL_SECTORS_IN_CX_TO_16WORDS 0 |
---|
| 149 | %ifdef USE_186 |
---|
| 150 | shl cx, 4 |
---|
| 151 | %else |
---|
| 152 | mov ch, cl |
---|
| 153 | mov cl, 4 |
---|
| 154 | shr cx, cl |
---|
| 155 | %endif |
---|
| 156 | %endmacro |
---|
[589] | 157 | |
---|
[623] | 158 | %macro UNROLL_SECTORS_IN_CX_TO_32WORDS 0 |
---|
| 159 | %ifdef USE_186 |
---|
| 160 | shl cx, 3 |
---|
| 161 | %else |
---|
| 162 | shl cx, 1 |
---|
| 163 | shl cx, 1 |
---|
| 164 | shl cx, 1 |
---|
| 165 | %endif |
---|
| 166 | %endmacro |
---|
| 167 | |
---|
| 168 | |
---|
[400] | 169 | %endif ; IDE_IO_INC |
---|