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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Module Name: rsio - IO and DMA resource descriptors | |
4 | * | |
5 | ******************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, 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 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acresrc.h> | |
46 | ||
47 | #define _COMPONENT ACPI_RESOURCES | |
4be44fcd | 48 | ACPI_MODULE_NAME("rsio") |
1da177e4 LT |
49 | |
50 | /******************************************************************************* | |
51 | * | |
0897831b | 52 | * acpi_rs_convert_io |
1da177e4 LT |
53 | * |
54 | ******************************************************************************/ | |
0897831b BM |
55 | struct acpi_rsconvert_info acpi_rs_convert_io[5] = { |
56 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO, | |
57 | ACPI_RS_SIZE(struct acpi_resource_io), | |
58 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)}, | |
1da177e4 | 59 | |
0897831b BM |
60 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO, |
61 | sizeof(struct aml_resource_io), | |
62 | 0}, | |
1da177e4 | 63 | |
0897831b | 64 | /* Decode flag */ |
44f6c012 | 65 | |
0897831b BM |
66 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode), |
67 | AML_OFFSET(io.flags), | |
68 | 0}, | |
50eca3eb | 69 | /* |
0897831b | 70 | * These fields are contiguous in both the source and destination: |
50eca3eb BM |
71 | * Address Alignment |
72 | * Length | |
0897831b BM |
73 | * Minimum Base Address |
74 | * Maximum Base Address | |
50eca3eb | 75 | */ |
0897831b BM |
76 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment), |
77 | AML_OFFSET(io.alignment), | |
78 | 2}, | |
1da177e4 | 79 | |
0897831b BM |
80 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum), |
81 | AML_OFFSET(io.minimum), | |
82 | 2} | |
83 | }; | |
1da177e4 | 84 | |
1da177e4 LT |
85 | /******************************************************************************* |
86 | * | |
0897831b | 87 | * acpi_rs_convert_fixed_io |
1da177e4 LT |
88 | * |
89 | ******************************************************************************/ | |
90 | ||
0897831b BM |
91 | struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = { |
92 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO, | |
93 | ACPI_RS_SIZE(struct acpi_resource_fixed_io), | |
94 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)}, | |
1da177e4 | 95 | |
0897831b BM |
96 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO, |
97 | sizeof(struct aml_resource_fixed_io), | |
98 | 0}, | |
50eca3eb | 99 | /* |
0897831b BM |
100 | * These fields are contiguous in both the source and destination: |
101 | * Base Address | |
50eca3eb BM |
102 | * Length |
103 | */ | |
0897831b BM |
104 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length), |
105 | AML_OFFSET(fixed_io.address_length), | |
106 | 1}, | |
44f6c012 | 107 | |
0897831b BM |
108 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address), |
109 | AML_OFFSET(fixed_io.address), | |
110 | 1} | |
111 | }; | |
1da177e4 | 112 | |
1da177e4 LT |
113 | /******************************************************************************* |
114 | * | |
0897831b | 115 | * acpi_rs_convert_generic_reg |
1da177e4 LT |
116 | * |
117 | ******************************************************************************/ | |
118 | ||
0897831b BM |
119 | struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = { |
120 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER, | |
121 | ACPI_RS_SIZE(struct acpi_resource_generic_register), | |
122 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)}, | |
44f6c012 | 123 | |
0897831b BM |
124 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER, |
125 | sizeof(struct aml_resource_generic_register), | |
126 | 0}, | |
50eca3eb | 127 | /* |
0897831b BM |
128 | * These fields are contiguous in both the source and destination: |
129 | * Address Space ID | |
130 | * Register Bit Width | |
131 | * Register Bit Offset | |
132 | * Access Size | |
50eca3eb | 133 | */ |
0897831b BM |
134 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id), |
135 | AML_OFFSET(generic_reg.address_space_id), | |
136 | 4}, | |
1da177e4 | 137 | |
0897831b | 138 | /* Get the Register Address */ |
1da177e4 | 139 | |
0897831b BM |
140 | {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address), |
141 | AML_OFFSET(generic_reg.address), | |
142 | 1} | |
143 | }; | |
1da177e4 | 144 | |
1da177e4 LT |
145 | /******************************************************************************* |
146 | * | |
0897831b | 147 | * acpi_rs_convert_end_dpf |
1da177e4 | 148 | * |
0897831b BM |
149 | ******************************************************************************/ |
150 | ||
151 | struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = { | |
152 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT, | |
153 | ACPI_RS_SIZE_MIN, | |
154 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)}, | |
155 | ||
156 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT, | |
157 | sizeof(struct aml_resource_end_dependent), | |
158 | 0} | |
159 | }; | |
160 | ||
161 | /******************************************************************************* | |
1da177e4 | 162 | * |
0897831b | 163 | * acpi_rs_convert_end_tag |
1da177e4 LT |
164 | * |
165 | ******************************************************************************/ | |
166 | ||
0897831b BM |
167 | struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = { |
168 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG, | |
169 | ACPI_RS_SIZE_MIN, | |
170 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)}, | |
50eca3eb BM |
171 | |
172 | /* | |
0897831b BM |
173 | * Note: The checksum field is set to zero, meaning that the resource |
174 | * data is treated as if the checksum operation succeeded. | |
175 | * (ACPI Spec 1.0b Section 6.4.2.8) | |
50eca3eb | 176 | */ |
0897831b BM |
177 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG, |
178 | sizeof(struct aml_resource_end_tag), | |
179 | 0} | |
180 | }; | |
1da177e4 | 181 | |
1da177e4 LT |
182 | /******************************************************************************* |
183 | * | |
0897831b | 184 | * acpi_rs_get_start_dpf |
1da177e4 LT |
185 | * |
186 | ******************************************************************************/ | |
187 | ||
1d5b285d | 188 | struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = { |
0897831b BM |
189 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT, |
190 | ACPI_RS_SIZE(struct acpi_resource_start_dependent), | |
191 | ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)}, | |
1da177e4 | 192 | |
0897831b | 193 | /* Defaults for Compatibility and Performance priorities */ |
1da177e4 | 194 | |
0897831b BM |
195 | {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), |
196 | ACPI_ACCEPTABLE_CONFIGURATION, | |
197 | 2}, | |
1da177e4 | 198 | |
1d5b285d BM |
199 | /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */ |
200 | ||
201 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
202 | AML_OFFSET(start_dpf.descriptor_type), | |
203 | 0}, | |
204 | ||
0897831b | 205 | /* All done if there is no flag byte present in the descriptor */ |
1da177e4 | 206 | |
0897831b | 207 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1}, |
44f6c012 | 208 | |
0897831b | 209 | /* Flag byte is present, get the flags */ |
44f6c012 | 210 | |
0897831b BM |
211 | {ACPI_RSC_2BITFLAG, |
212 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
213 | AML_OFFSET(start_dpf.flags), | |
214 | 0}, | |
1da177e4 | 215 | |
0897831b BM |
216 | {ACPI_RSC_2BITFLAG, |
217 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
218 | AML_OFFSET(start_dpf.flags), | |
219 | 2} | |
220 | }; | |
1da177e4 | 221 | |
1da177e4 LT |
222 | /******************************************************************************* |
223 | * | |
0897831b | 224 | * acpi_rs_set_start_dpf |
1da177e4 LT |
225 | * |
226 | ******************************************************************************/ | |
227 | ||
1d5b285d BM |
228 | struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = { |
229 | /* Start with a default descriptor of length 1 */ | |
230 | ||
0897831b BM |
231 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT, |
232 | sizeof(struct aml_resource_start_dependent), | |
233 | ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)}, | |
1da177e4 | 234 | |
0897831b | 235 | /* Set the default flag values */ |
44f6c012 | 236 | |
0897831b BM |
237 | {ACPI_RSC_2BITFLAG, |
238 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
239 | AML_OFFSET(start_dpf.flags), | |
240 | 0}, | |
1da177e4 | 241 | |
0897831b BM |
242 | {ACPI_RSC_2BITFLAG, |
243 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
244 | AML_OFFSET(start_dpf.flags), | |
245 | 2}, | |
1d5b285d BM |
246 | /* |
247 | * All done if the output descriptor length is required to be 1 | |
248 | * (i.e., optimization to 0 bytes cannot be attempted) | |
249 | */ | |
250 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
251 | ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
252 | 1}, | |
253 | ||
254 | /* Set length to 0 bytes (no flags byte) */ | |
255 | ||
256 | {ACPI_RSC_LENGTH, 0, 0, | |
257 | sizeof(struct aml_resource_start_dependent_noprio)}, | |
258 | ||
259 | /* | |
260 | * All done if the output descriptor length is required to be 0. | |
261 | * | |
262 | * TBD: Perhaps we should check for error if input flags are not | |
263 | * compatible with a 0-byte descriptor. | |
264 | */ | |
265 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
266 | ACPI_RS_OFFSET(data.start_dpf.descriptor_length), | |
267 | 0}, | |
268 | ||
269 | /* Reset length to 1 byte (descriptor with flags byte) */ | |
270 | ||
66d3ca9e | 271 | {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)}, |
1d5b285d | 272 | |
0897831b BM |
273 | /* |
274 | * All done if flags byte is necessary -- if either priority value | |
275 | * is not ACPI_ACCEPTABLE_CONFIGURATION | |
276 | */ | |
277 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, | |
278 | ACPI_RS_OFFSET(data.start_dpf.compatibility_priority), | |
279 | ACPI_ACCEPTABLE_CONFIGURATION}, | |
1da177e4 | 280 | |
0897831b BM |
281 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
282 | ACPI_RS_OFFSET(data.start_dpf.performance_robustness), | |
283 | ACPI_ACCEPTABLE_CONFIGURATION}, | |
1da177e4 | 284 | |
0897831b | 285 | /* Flag byte is not necessary */ |
44f6c012 | 286 | |
0897831b BM |
287 | {ACPI_RSC_LENGTH, 0, 0, |
288 | sizeof(struct aml_resource_start_dependent_noprio)} | |
289 | }; |