1 /* SPDX-License-Identifier: BSD-3-Clause OR GP <<
2 /********************************************* 1 /******************************************************************************
3 * 2 *
4 * Name: acbuffer.h - Support for buffers retu 3 * Name: acbuffer.h - Support for buffers returned by ACPI predefined names
5 * 4 *
6 * Copyright (C) 2000 - 2023, Intel Corp. <<
7 * <<
8 ********************************************* 5 *****************************************************************************/
9 6
>> 7 /*
>> 8 * Copyright (C) 2000 - 2016, Intel Corp.
>> 9 * All rights reserved.
>> 10 *
>> 11 * Redistribution and use in source and binary forms, with or without
>> 12 * modification, are permitted provided that the following conditions
>> 13 * are met:
>> 14 * 1. Redistributions of source code must retain the above copyright
>> 15 * notice, this list of conditions, and the following disclaimer,
>> 16 * without modification.
>> 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
>> 18 * substantially similar to the "NO WARRANTY" disclaimer below
>> 19 * ("Disclaimer") and any redistribution must be conditioned upon
>> 20 * including a substantially similar Disclaimer requirement for further
>> 21 * binary redistribution.
>> 22 * 3. Neither the names of the above-listed copyright holders nor the names
>> 23 * of any contributors may be used to endorse or promote products derived
>> 24 * from this software without specific prior written permission.
>> 25 *
>> 26 * Alternatively, this software may be distributed under the terms of the
>> 27 * GNU General Public License ("GPL") version 2 as published by the Free
>> 28 * Software Foundation.
>> 29 *
>> 30 * NO WARRANTY
>> 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>> 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>> 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
>> 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>> 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
>> 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
>> 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
>> 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
>> 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
>> 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
>> 41 * POSSIBILITY OF SUCH DAMAGES.
>> 42 */
>> 43
10 #ifndef __ACBUFFER_H__ 44 #ifndef __ACBUFFER_H__
11 #define __ACBUFFER_H__ 45 #define __ACBUFFER_H__
12 46
13 /* 47 /*
14 * Contains buffer structures for these predef 48 * Contains buffer structures for these predefined names:
15 * _FDE, _GRT, _GTM, _PLD, _SRT 49 * _FDE, _GRT, _GTM, _PLD, _SRT
16 */ 50 */
17 51
18 /* 52 /*
19 * Note: C bitfields are not used for this rea 53 * Note: C bitfields are not used for this reason:
20 * 54 *
21 * "Bitfields are great and easy to read, but 55 * "Bitfields are great and easy to read, but unfortunately the C language
22 * does not specify the layout of bitfields in 56 * does not specify the layout of bitfields in memory, which means they are
23 * essentially useless for dealing with packed 57 * essentially useless for dealing with packed data in on-disk formats or
24 * binary wire protocols." (Or ACPI tables and 58 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
25 * this decision was a design error in C. Ritc 59 * this decision was a design error in C. Ritchie could have picked an order
26 * and stuck with it." Norman Ramsey. 60 * and stuck with it." Norman Ramsey.
27 * See http://stackoverflow.com/a/1053662/4166 61 * See http://stackoverflow.com/a/1053662/41661
28 */ 62 */
29 63
30 /* _FDE return value */ 64 /* _FDE return value */
31 65
32 struct acpi_fde_info { 66 struct acpi_fde_info {
33 u32 floppy0; 67 u32 floppy0;
34 u32 floppy1; 68 u32 floppy1;
35 u32 floppy2; 69 u32 floppy2;
36 u32 floppy3; 70 u32 floppy3;
37 u32 tape; 71 u32 tape;
38 }; 72 };
39 73
40 /* 74 /*
41 * _GRT return value 75 * _GRT return value
42 * _SRT input value 76 * _SRT input value
43 */ 77 */
44 struct acpi_grt_info { 78 struct acpi_grt_info {
45 u16 year; 79 u16 year;
46 u8 month; 80 u8 month;
47 u8 day; 81 u8 day;
48 u8 hour; 82 u8 hour;
49 u8 minute; 83 u8 minute;
50 u8 second; 84 u8 second;
51 u8 valid; 85 u8 valid;
52 u16 milliseconds; 86 u16 milliseconds;
53 u16 timezone; 87 u16 timezone;
54 u8 daylight; 88 u8 daylight;
55 u8 reserved[3]; 89 u8 reserved[3];
56 }; 90 };
57 91
58 /* _GTM return value */ 92 /* _GTM return value */
59 93
60 struct acpi_gtm_info { 94 struct acpi_gtm_info {
61 u32 pio_speed0; 95 u32 pio_speed0;
62 u32 dma_speed0; 96 u32 dma_speed0;
63 u32 pio_speed1; 97 u32 pio_speed1;
64 u32 dma_speed1; 98 u32 dma_speed1;
65 u32 flags; 99 u32 flags;
66 }; 100 };
67 101
68 /* 102 /*
69 * Formatted _PLD return value. The minimum si 103 * Formatted _PLD return value. The minimum size is a package containing
70 * one buffer. 104 * one buffer.
71 * Revision 1: Buffer is 16 bytes (128 bits) 105 * Revision 1: Buffer is 16 bytes (128 bits)
72 * Revision 2: Buffer is 20 bytes (160 bits) 106 * Revision 2: Buffer is 20 bytes (160 bits)
73 * 107 *
74 * Note: This structure is returned from the a 108 * Note: This structure is returned from the acpi_decode_pld_buffer
75 * interface. 109 * interface.
76 */ 110 */
77 struct acpi_pld_info { 111 struct acpi_pld_info {
78 u8 revision; 112 u8 revision;
79 u8 ignore_color; 113 u8 ignore_color;
80 u8 red; 114 u8 red;
81 u8 green; 115 u8 green;
82 u8 blue; 116 u8 blue;
83 u16 width; 117 u16 width;
84 u16 height; 118 u16 height;
85 u8 user_visible; 119 u8 user_visible;
86 u8 dock; 120 u8 dock;
87 u8 lid; 121 u8 lid;
88 u8 panel; 122 u8 panel;
89 u8 vertical_position; 123 u8 vertical_position;
90 u8 horizontal_position; 124 u8 horizontal_position;
91 u8 shape; 125 u8 shape;
92 u8 group_orientation; 126 u8 group_orientation;
93 u8 group_token; 127 u8 group_token;
94 u8 group_position; 128 u8 group_position;
95 u8 bay; 129 u8 bay;
96 u8 ejectable; 130 u8 ejectable;
97 u8 ospm_eject_required; 131 u8 ospm_eject_required;
98 u8 cabinet_number; 132 u8 cabinet_number;
99 u8 card_cage_number; 133 u8 card_cage_number;
100 u8 reference; 134 u8 reference;
101 u8 rotation; 135 u8 rotation;
102 u8 order; 136 u8 order;
103 u8 reserved; 137 u8 reserved;
104 u16 vertical_offset; 138 u16 vertical_offset;
105 u16 horizontal_offset; 139 u16 horizontal_offset;
106 }; 140 };
107 141
108 /* 142 /*
109 * Macros to: 143 * Macros to:
110 * 1) Convert a _PLD buffer to internal st 144 * 1) Convert a _PLD buffer to internal struct acpi_pld_info format - ACPI_PLD_GET*
111 * (Used by acpi_decode_pld_buffer) 145 * (Used by acpi_decode_pld_buffer)
112 * 2) Construct a _PLD buffer - ACPI_PLD_S 146 * 2) Construct a _PLD buffer - ACPI_PLD_SET*
113 * (Intended for BIOS use only) 147 * (Intended for BIOS use only)
114 */ 148 */
115 #define ACPI_PLD_REV1_BUFFER_SIZE 149 #define ACPI_PLD_REV1_BUFFER_SIZE 16 /* For Revision 1 of the buffer (From ACPI spec) */
116 #define ACPI_PLD_REV2_BUFFER_SIZE 150 #define ACPI_PLD_REV2_BUFFER_SIZE 20 /* For Revision 2 of the buffer (From ACPI spec) */
117 #define ACPI_PLD_BUFFER_SIZE 151 #define ACPI_PLD_BUFFER_SIZE 20 /* For Revision 2 of the buffer (From ACPI spec) */
118 152
119 /* First 32-bit dword, bits 0:32 */ 153 /* First 32-bit dword, bits 0:32 */
120 154
121 #define ACPI_PLD_GET_REVISION(dword) 155 #define ACPI_PLD_GET_REVISION(dword) ACPI_GET_BITS (dword, 0, ACPI_7BIT_MASK)
122 #define ACPI_PLD_SET_REVISION(dword,value) 156 #define ACPI_PLD_SET_REVISION(dword,value) ACPI_SET_BITS (dword, 0, ACPI_7BIT_MASK, value) /* Offset 0, Len 7 */
123 157
124 #define ACPI_PLD_GET_IGNORE_COLOR(dword) 158 #define ACPI_PLD_GET_IGNORE_COLOR(dword) ACPI_GET_BITS (dword, 7, ACPI_1BIT_MASK)
125 #define ACPI_PLD_SET_IGNORE_COLOR(dword,value) 159 #define ACPI_PLD_SET_IGNORE_COLOR(dword,value) ACPI_SET_BITS (dword, 7, ACPI_1BIT_MASK, value) /* Offset 7, Len 1 */
126 160
127 #define ACPI_PLD_GET_RED(dword) 161 #define ACPI_PLD_GET_RED(dword) ACPI_GET_BITS (dword, 8, ACPI_8BIT_MASK)
128 #define ACPI_PLD_SET_RED(dword,value) 162 #define ACPI_PLD_SET_RED(dword,value) ACPI_SET_BITS (dword, 8, ACPI_8BIT_MASK, value) /* Offset 8, Len 8 */
129 163
130 #define ACPI_PLD_GET_GREEN(dword) 164 #define ACPI_PLD_GET_GREEN(dword) ACPI_GET_BITS (dword, 16, ACPI_8BIT_MASK)
131 #define ACPI_PLD_SET_GREEN(dword,value) 165 #define ACPI_PLD_SET_GREEN(dword,value) ACPI_SET_BITS (dword, 16, ACPI_8BIT_MASK, value) /* Offset 16, Len 8 */
132 166
133 #define ACPI_PLD_GET_BLUE(dword) 167 #define ACPI_PLD_GET_BLUE(dword) ACPI_GET_BITS (dword, 24, ACPI_8BIT_MASK)
134 #define ACPI_PLD_SET_BLUE(dword,value) 168 #define ACPI_PLD_SET_BLUE(dword,value) ACPI_SET_BITS (dword, 24, ACPI_8BIT_MASK, value) /* Offset 24, Len 8 */
135 169
136 /* Second 32-bit dword, bits 33:63 */ 170 /* Second 32-bit dword, bits 33:63 */
137 171
138 #define ACPI_PLD_GET_WIDTH(dword) 172 #define ACPI_PLD_GET_WIDTH(dword) ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
139 #define ACPI_PLD_SET_WIDTH(dword,value) 173 #define ACPI_PLD_SET_WIDTH(dword,value) ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value) /* Offset 32+0=32, Len 16 */
140 174
141 #define ACPI_PLD_GET_HEIGHT(dword) 175 #define ACPI_PLD_GET_HEIGHT(dword) ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
142 #define ACPI_PLD_SET_HEIGHT(dword,value) 176 #define ACPI_PLD_SET_HEIGHT(dword,value) ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value) /* Offset 32+16=48, Len 16 */
143 177
144 /* Third 32-bit dword, bits 64:95 */ 178 /* Third 32-bit dword, bits 64:95 */
145 179
146 #define ACPI_PLD_GET_USER_VISIBLE(dword) 180 #define ACPI_PLD_GET_USER_VISIBLE(dword) ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
147 #define ACPI_PLD_SET_USER_VISIBLE(dword,value) 181 #define ACPI_PLD_SET_USER_VISIBLE(dword,value) ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 64+0=64, Len 1 */
148 182
149 #define ACPI_PLD_GET_DOCK(dword) 183 #define ACPI_PLD_GET_DOCK(dword) ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
150 #define ACPI_PLD_SET_DOCK(dword,value) 184 #define ACPI_PLD_SET_DOCK(dword,value) ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 64+1=65, Len 1 */
151 185
152 #define ACPI_PLD_GET_LID(dword) 186 #define ACPI_PLD_GET_LID(dword) ACPI_GET_BITS (dword, 2, ACPI_1BIT_MASK)
153 #define ACPI_PLD_SET_LID(dword,value) 187 #define ACPI_PLD_SET_LID(dword,value) ACPI_SET_BITS (dword, 2, ACPI_1BIT_MASK, value) /* Offset 64+2=66, Len 1 */
154 188
155 #define ACPI_PLD_GET_PANEL(dword) 189 #define ACPI_PLD_GET_PANEL(dword) ACPI_GET_BITS (dword, 3, ACPI_3BIT_MASK)
156 #define ACPI_PLD_SET_PANEL(dword,value) 190 #define ACPI_PLD_SET_PANEL(dword,value) ACPI_SET_BITS (dword, 3, ACPI_3BIT_MASK, value) /* Offset 64+3=67, Len 3 */
157 191
158 #define ACPI_PLD_GET_VERTICAL(dword) 192 #define ACPI_PLD_GET_VERTICAL(dword) ACPI_GET_BITS (dword, 6, ACPI_2BIT_MASK)
159 #define ACPI_PLD_SET_VERTICAL(dword,value) 193 #define ACPI_PLD_SET_VERTICAL(dword,value) ACPI_SET_BITS (dword, 6, ACPI_2BIT_MASK, value) /* Offset 64+6=70, Len 2 */
160 194
161 #define ACPI_PLD_GET_HORIZONTAL(dword) 195 #define ACPI_PLD_GET_HORIZONTAL(dword) ACPI_GET_BITS (dword, 8, ACPI_2BIT_MASK)
162 #define ACPI_PLD_SET_HORIZONTAL(dword,value) 196 #define ACPI_PLD_SET_HORIZONTAL(dword,value) ACPI_SET_BITS (dword, 8, ACPI_2BIT_MASK, value) /* Offset 64+8=72, Len 2 */
163 197
164 #define ACPI_PLD_GET_SHAPE(dword) 198 #define ACPI_PLD_GET_SHAPE(dword) ACPI_GET_BITS (dword, 10, ACPI_4BIT_MASK)
165 #define ACPI_PLD_SET_SHAPE(dword,value) 199 #define ACPI_PLD_SET_SHAPE(dword,value) ACPI_SET_BITS (dword, 10, ACPI_4BIT_MASK, value) /* Offset 64+10=74, Len 4 */
166 200
167 #define ACPI_PLD_GET_ORIENTATION(dword) 201 #define ACPI_PLD_GET_ORIENTATION(dword) ACPI_GET_BITS (dword, 14, ACPI_1BIT_MASK)
168 #define ACPI_PLD_SET_ORIENTATION(dword,value) 202 #define ACPI_PLD_SET_ORIENTATION(dword,value) ACPI_SET_BITS (dword, 14, ACPI_1BIT_MASK, value) /* Offset 64+14=78, Len 1 */
169 203
170 #define ACPI_PLD_GET_TOKEN(dword) 204 #define ACPI_PLD_GET_TOKEN(dword) ACPI_GET_BITS (dword, 15, ACPI_8BIT_MASK)
171 #define ACPI_PLD_SET_TOKEN(dword,value) 205 #define ACPI_PLD_SET_TOKEN(dword,value) ACPI_SET_BITS (dword, 15, ACPI_8BIT_MASK, value) /* Offset 64+15=79, Len 8 */
172 206
173 #define ACPI_PLD_GET_POSITION(dword) 207 #define ACPI_PLD_GET_POSITION(dword) ACPI_GET_BITS (dword, 23, ACPI_8BIT_MASK)
174 #define ACPI_PLD_SET_POSITION(dword,value) 208 #define ACPI_PLD_SET_POSITION(dword,value) ACPI_SET_BITS (dword, 23, ACPI_8BIT_MASK, value) /* Offset 64+23=87, Len 8 */
175 209
176 #define ACPI_PLD_GET_BAY(dword) 210 #define ACPI_PLD_GET_BAY(dword) ACPI_GET_BITS (dword, 31, ACPI_1BIT_MASK)
177 #define ACPI_PLD_SET_BAY(dword,value) 211 #define ACPI_PLD_SET_BAY(dword,value) ACPI_SET_BITS (dword, 31, ACPI_1BIT_MASK, value) /* Offset 64+31=95, Len 1 */
178 212
179 /* Fourth 32-bit dword, bits 96:127 */ 213 /* Fourth 32-bit dword, bits 96:127 */
180 214
181 #define ACPI_PLD_GET_EJECTABLE(dword) 215 #define ACPI_PLD_GET_EJECTABLE(dword) ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
182 #define ACPI_PLD_SET_EJECTABLE(dword,value) 216 #define ACPI_PLD_SET_EJECTABLE(dword,value) ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 96+0=96, Len 1 */
183 217
184 #define ACPI_PLD_GET_OSPM_EJECT(dword) 218 #define ACPI_PLD_GET_OSPM_EJECT(dword) ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
185 #define ACPI_PLD_SET_OSPM_EJECT(dword,value) 219 #define ACPI_PLD_SET_OSPM_EJECT(dword,value) ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 96+1=97, Len 1 */
186 220
187 #define ACPI_PLD_GET_CABINET(dword) 221 #define ACPI_PLD_GET_CABINET(dword) ACPI_GET_BITS (dword, 2, ACPI_8BIT_MASK)
188 #define ACPI_PLD_SET_CABINET(dword,value) 222 #define ACPI_PLD_SET_CABINET(dword,value) ACPI_SET_BITS (dword, 2, ACPI_8BIT_MASK, value) /* Offset 96+2=98, Len 8 */
189 223
190 #define ACPI_PLD_GET_CARD_CAGE(dword) 224 #define ACPI_PLD_GET_CARD_CAGE(dword) ACPI_GET_BITS (dword, 10, ACPI_8BIT_MASK)
191 #define ACPI_PLD_SET_CARD_CAGE(dword,value) 225 #define ACPI_PLD_SET_CARD_CAGE(dword,value) ACPI_SET_BITS (dword, 10, ACPI_8BIT_MASK, value) /* Offset 96+10=106, Len 8 */
192 226
193 #define ACPI_PLD_GET_REFERENCE(dword) 227 #define ACPI_PLD_GET_REFERENCE(dword) ACPI_GET_BITS (dword, 18, ACPI_1BIT_MASK)
194 #define ACPI_PLD_SET_REFERENCE(dword,value) 228 #define ACPI_PLD_SET_REFERENCE(dword,value) ACPI_SET_BITS (dword, 18, ACPI_1BIT_MASK, value) /* Offset 96+18=114, Len 1 */
195 229
196 #define ACPI_PLD_GET_ROTATION(dword) 230 #define ACPI_PLD_GET_ROTATION(dword) ACPI_GET_BITS (dword, 19, ACPI_4BIT_MASK)
197 #define ACPI_PLD_SET_ROTATION(dword,value) 231 #define ACPI_PLD_SET_ROTATION(dword,value) ACPI_SET_BITS (dword, 19, ACPI_4BIT_MASK, value) /* Offset 96+19=115, Len 4 */
198 232
199 #define ACPI_PLD_GET_ORDER(dword) 233 #define ACPI_PLD_GET_ORDER(dword) ACPI_GET_BITS (dword, 23, ACPI_5BIT_MASK)
200 #define ACPI_PLD_SET_ORDER(dword,value) 234 #define ACPI_PLD_SET_ORDER(dword,value) ACPI_SET_BITS (dword, 23, ACPI_5BIT_MASK, value) /* Offset 96+23=119, Len 5 */
201 235
202 /* Fifth 32-bit dword, bits 128:159 (Revision 236 /* Fifth 32-bit dword, bits 128:159 (Revision 2 of _PLD only) */
203 237
204 #define ACPI_PLD_GET_VERT_OFFSET(dword) 238 #define ACPI_PLD_GET_VERT_OFFSET(dword) ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
205 #define ACPI_PLD_SET_VERT_OFFSET(dword,value) 239 #define ACPI_PLD_SET_VERT_OFFSET(dword,value) ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value) /* Offset 128+0=128, Len 16 */
206 240
207 #define ACPI_PLD_GET_HORIZ_OFFSET(dword) 241 #define ACPI_PLD_GET_HORIZ_OFFSET(dword) ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
208 #define ACPI_PLD_SET_HORIZ_OFFSET(dword,value) 242 #define ACPI_PLD_SET_HORIZ_OFFSET(dword,value) ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value) /* Offset 128+16=144, Len 16 */
209 <<
210 /* Panel position defined in _PLD section of A <<
211 <<
212 #define ACPI_PLD_PANEL_TOP 0 <<
213 #define ACPI_PLD_PANEL_BOTTOM 1 <<
214 #define ACPI_PLD_PANEL_LEFT 2 <<
215 #define ACPI_PLD_PANEL_RIGHT 3 <<
216 #define ACPI_PLD_PANEL_FRONT 4 <<
217 #define ACPI_PLD_PANEL_BACK 5 <<
218 #define ACPI_PLD_PANEL_UNKNOWN 6 <<
219 243
220 #endif /* ACBUFFER_H 244 #endif /* ACBUFFER_H */
221 245
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