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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Module Name: rsio - IO and DMA resource descriptors | |
4 | * | |
5 | ******************************************************************************/ | |
6 | ||
7 | /* | |
fbb7a2dc | 8 | * Copyright (C) 2000 - 2014, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 | 44 | #include <acpi/acpi.h> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acresrc.h" | |
1da177e4 LT |
47 | |
48 | #define _COMPONENT ACPI_RESOURCES | |
4be44fcd | 49 | ACPI_MODULE_NAME("rsio") |
1da177e4 LT |
50 | |
51 | /******************************************************************************* | |
52 | * | |
0897831b | 53 | * acpi_rs_convert_io |
1da177e4 LT |
54 | * |
55 | ******************************************************************************/ | |
0897831b BM |
56 | struct acpi_rsconvert_info acpi_rs_convert_io[5] = { |
57 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO, | |
58 | ACPI_RS_SIZE(struct acpi_resource_io), | |
59 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)}, | |
1da177e4 | 60 | |
0897831b BM |
61 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO, |
62 | sizeof(struct aml_resource_io), | |
63 | 0}, | |
1da177e4 | 64 | |
0897831b | 65 | /* Decode flag */ |
44f6c012 | 66 | |
0897831b BM |
67 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode), |
68 | AML_OFFSET(io.flags), | |
69 | 0}, | |
50eca3eb | 70 | /* |
0897831b | 71 | * These fields are contiguous in both the source and destination: |
50eca3eb BM |
72 | * Address Alignment |
73 | * Length | |
0897831b BM |
74 | * Minimum Base Address |
75 | * Maximum Base Address | |
50eca3eb | 76 | */ |
0897831b BM |
77 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment), |
78 | AML_OFFSET(io.alignment), | |
79 | 2}, | |
1da177e4 | 80 | |
0897831b BM |
81 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum), |
82 | AML_OFFSET(io.minimum), | |
83 | 2} | |
84 | }; | |
1da177e4 | 85 | |
1da177e4 LT |
86 | /******************************************************************************* |
87 | * | |
0897831b | 88 | * acpi_rs_convert_fixed_io |
1da177e4 LT |
89 | * |
90 | ******************************************************************************/ | |
91 | ||
0897831b BM |
92 | struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = { |
93 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO, | |
94 | ACPI_RS_SIZE(struct acpi_resource_fixed_io), | |
95 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)}, | |
1da177e4 | 96 | |
0897831b BM |
97 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO, |
98 | sizeof(struct aml_resource_fixed_io), | |
99 | 0}, | |
50eca3eb | 100 | /* |
0897831b BM |
101 | * These fields are contiguous in both the source and destination: |
102 | * Base Address | |
50eca3eb BM |
103 | * Length |
104 | */ | |
0897831b BM |
105 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length), |
106 | AML_OFFSET(fixed_io.address_length), | |
107 | 1}, | |
44f6c012 | 108 | |
0897831b BM |
109 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address), |
110 | AML_OFFSET(fixed_io.address), | |
111 | 1} | |
112 | }; | |
1da177e4 | 113 | |
1da177e4 LT |
114 | /******************************************************************************* |
115 | * | |
0897831b | 116 | * acpi_rs_convert_generic_reg |
1da177e4 LT |
117 | * |
118 | ******************************************************************************/ | |
119 | ||
0897831b BM |
120 | struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = { |
121 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER, | |
122 | ACPI_RS_SIZE(struct acpi_resource_generic_register), | |
123 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)}, | |
44f6c012 | 124 | |
0897831b BM |
125 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER, |
126 | sizeof(struct aml_resource_generic_register), | |
127 | 0}, | |
50eca3eb | 128 | /* |
0897831b BM |
129 | * These fields are contiguous in both the source and destination: |
130 | * Address Space ID | |
131 | * Register Bit Width | |
132 | * Register Bit Offset | |
133 | * Access Size | |
50eca3eb | 134 | */ |
0897831b BM |
135 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id), |
136 | AML_OFFSET(generic_reg.address_space_id), | |
137 | 4}, | |
1da177e4 | 138 | |
0897831b | 139 | /* Get the Register Address */ |
1da177e4 | 140 | |
0897831b BM |
141 | {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address), |
142 | AML_OFFSET(generic_reg.address), | |
143 | 1} | |
144 | }; | |
1da177e4 | 145 | |
1da177e4 LT |
146 | /******************************************************************************* |
147 | * | |
0897831b | 148 | * acpi_rs_convert_end_dpf |
1da177e4 | 149 | * |
0897831b BM |
150 | ******************************************************************************/ |
151 | ||
152 | struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = { | |
153 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT, | |
154 | ACPI_RS_SIZE_MIN, | |
155 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)}, | |
156 | ||
157 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT, | |
158 | sizeof(struct aml_resource_end_dependent), | |
159 | 0} | |
160 | }; | |
161 | ||
162 | /******************************************************************************* | |
1da177e4 | 163 | * |
0897831b | 164 | * acpi_rs_convert_end_tag |
1da177e4 LT |
165 | * |
166 | ******************************************************************************/ | |
167 | ||
0897831b BM |
168 | struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = { |
169 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG, | |
170 | ACPI_RS_SIZE_MIN, | |
171 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)}, | |
50eca3eb BM |
172 | |
173 | /* | |
0897831b BM |
174 | * Note: The checksum field is set to zero, meaning that the resource |
175 | * data is treated as if the checksum operation succeeded. | |
176 | * (ACPI Spec 1.0b Section 6.4.2.8) | |
50eca3eb | 177 | */ |
0897831b BM |
178 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG, |
179 | sizeof(struct aml_resource_end_tag), | |
180 | 0} | |
181 | }; | |
1da177e4 | 182 | |
1da177e4 LT |
183 | /******************************************************************************* |
184 | * | |
0897831b | 185 | * acpi_rs_get_start_dpf |
1da177e4 LT |
186 | * |
187 | ******************************************************************************/ | |
188 | ||
1d5b285d | 189 | struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = { |
0897831b BM |
190 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT, |
191 | ACPI_RS_SIZE(struct acpi_resource_start_dependent), | |
192 | ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)}, | |
1da177e4 | 193 | |
0897831b | 194 | /* Defaults for Compatibility and Performance priorities */ |
1da177e4 | 195 | |
0897831b BM |
196 | {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), |
197 | ACPI_ACCEPTABLE_CONFIGURATION, | |
198 | 2}, | |
1da177e4 | 199 | |
1d5b285d BM |
200 | /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */ |
201 | ||
202 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
203 | AML_OFFSET(start_dpf.descriptor_type), | |
204 | 0}, | |
205 | ||
0897831b | 206 | /* All done if there is no flag byte present in the descriptor */ |
1da177e4 | 207 | |
0897831b | 208 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1}, |
44f6c012 | 209 | |
0897831b | 210 | /* Flag byte is present, get the flags */ |
44f6c012 | 211 | |
0897831b BM |
212 | {ACPI_RSC_2BITFLAG, |
213 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
214 | AML_OFFSET(start_dpf.flags), | |
215 | 0}, | |
1da177e4 | 216 | |
0897831b BM |
217 | {ACPI_RSC_2BITFLAG, |
218 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
219 | AML_OFFSET(start_dpf.flags), | |
220 | 2} | |
221 | }; | |
1da177e4 | 222 | |
1da177e4 LT |
223 | /******************************************************************************* |
224 | * | |
0897831b | 225 | * acpi_rs_set_start_dpf |
1da177e4 LT |
226 | * |
227 | ******************************************************************************/ | |
228 | ||
1d5b285d BM |
229 | struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = { |
230 | /* Start with a default descriptor of length 1 */ | |
231 | ||
0897831b BM |
232 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT, |
233 | sizeof(struct aml_resource_start_dependent), | |
234 | ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)}, | |
1da177e4 | 235 | |
0897831b | 236 | /* Set the default flag values */ |
44f6c012 | 237 | |
0897831b BM |
238 | {ACPI_RSC_2BITFLAG, |
239 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
240 | AML_OFFSET(start_dpf.flags), | |
241 | 0}, | |
1da177e4 | 242 | |
0897831b BM |
243 | {ACPI_RSC_2BITFLAG, |
244 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
245 | AML_OFFSET(start_dpf.flags), | |
246 | 2}, | |
1d5b285d BM |
247 | /* |
248 | * All done if the output descriptor length is required to be 1 | |
249 | * (i.e., optimization to 0 bytes cannot be attempted) | |
250 | */ | |
251 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
252 | ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
253 | 1}, | |
254 | ||
255 | /* Set length to 0 bytes (no flags byte) */ | |
256 | ||
257 | {ACPI_RSC_LENGTH, 0, 0, | |
258 | sizeof(struct aml_resource_start_dependent_noprio)}, | |
259 | ||
260 | /* | |
261 | * All done if the output descriptor length is required to be 0. | |
262 | * | |
263 | * TBD: Perhaps we should check for error if input flags are not | |
264 | * compatible with a 0-byte descriptor. | |
265 | */ | |
266 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
267 | ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
268 | 0}, | |
269 | ||
270 | /* Reset length to 1 byte (descriptor with flags byte) */ | |
271 | ||
66d3ca9e | 272 | {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)}, |
1d5b285d | 273 | |
0897831b BM |
274 | /* |
275 | * All done if flags byte is necessary -- if either priority value | |
276 | * is not ACPI_ACCEPTABLE_CONFIGURATION | |
277 | */ | |
278 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, | |
279 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
280 | ACPI_ACCEPTABLE_CONFIGURATION}, | |
1da177e4 | 281 | |
0897831b BM |
282 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
283 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
284 | ACPI_ACCEPTABLE_CONFIGURATION}, | |
1da177e4 | 285 | |
0897831b | 286 | /* Flag byte is not necessary */ |
44f6c012 | 287 | |
0897831b BM |
288 | {ACPI_RSC_LENGTH, 0, 0, |
289 | sizeof(struct aml_resource_start_dependent_noprio)} | |
290 | }; |