1 | ; Project name : XTIDE Universal BIOS |
---|
2 | ; Description : Macros for normal I/O mapped ATA controllers. |
---|
3 | |
---|
4 | ; |
---|
5 | ; XTIDE Universal BIOS and Associated Tools |
---|
6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
---|
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. |
---|
12 | ; |
---|
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 |
---|
16 | ; GNU General Public License for more details. |
---|
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 | ;-------------------------------------------------------------------- |
---|
24 | ; OUTPUT_AL_TO_IDE_REGISTER |
---|
25 | ; OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER |
---|
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 |
---|
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 |
---|
50 | call IdeIO_OutputALtoIdeRegisterInDL |
---|
51 | |
---|
52 | %endif |
---|
53 | %endmacro |
---|
54 | |
---|
55 | |
---|
56 | %macro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1 |
---|
57 | %ifndef MODULE_8BIT_IDE ; Standard IDE controllers only |
---|
58 | |
---|
59 | eMOVZX bx, [di+DPT.bIdevarsOffset] |
---|
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 | |
---|
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 |
---|
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 |
---|
101 | call IdeIO_InputToALfromIdeRegisterInDL |
---|
102 | |
---|
103 | %endif |
---|
104 | %endmacro |
---|
105 | |
---|
106 | |
---|
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 | |
---|
148 | |
---|
149 | %endif ; IDE_IO_INC |
---|