1 /*******************************************************************************
2 *
3 * Module Name: rsio - IO and DMA resource descriptors
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, 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
44 #define __RSIO_C__
45
46 #include "acpi.h"
47 #include "accommon.h"
48 #include "acresrc.h"
49
50 #define _COMPONENT ACPI_RESOURCES
51 ACPI_MODULE_NAME ("rsio")
52
53
54 /*******************************************************************************
55 *
56 * AcpiRsConvertIo
57 *
58 ******************************************************************************/
59
60 ACPI_RSCONVERT_INFO AcpiRsConvertIo[5] =
61 {
62 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO,
63 ACPI_RS_SIZE (ACPI_RESOURCE_IO),
64 ACPI_RSC_TABLE_SIZE (AcpiRsConvertIo)},
65
66 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
67 sizeof (AML_RESOURCE_IO),
68 0},
69
70 /* Decode flag */
71
72 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Io.IoDecode),
73 AML_OFFSET (Io.Flags),
74 0},
75 /*
76 * These fields are contiguous in both the source and destination:
77 * Address Alignment
78 * Length
79 * Minimum Base Address
80 * Maximum Base Address
81 */
82 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.Io.Alignment),
83 AML_OFFSET (Io.Alignment),
84 2},
85
86 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET (Data.Io.Minimum),
87 AML_OFFSET (Io.Minimum),
88 2}
89 };
90
91
92 /*******************************************************************************
93 *
94 * AcpiRsConvertFixedIo
95 *
96 ******************************************************************************/
97
98 ACPI_RSCONVERT_INFO AcpiRsConvertFixedIo[4] =
99 {
100 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO,
101 ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_IO),
102 ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedIo)},
103
104 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
105 sizeof (AML_RESOURCE_FIXED_IO),
106 0},
107 /*
108 * These fields are contiguous in both the source and destination:
109 * Base Address
110 * Length
111 */
112 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.FixedIo.AddressLength),
113 AML_OFFSET (FixedIo.AddressLength),
114 1},
115
116 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET (Data.FixedIo.Address),
117 AML_OFFSET (FixedIo.Address),
118 1}
119 };
120
121
122 /*******************************************************************************
123 *
124 * AcpiRsConvertGenericReg
125 *
126 ******************************************************************************/
127
128 ACPI_RSCONVERT_INFO AcpiRsConvertGenericReg[4] =
129 {
130 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
131 ACPI_RS_SIZE (ACPI_RESOURCE_GENERIC_REGISTER),
132 ACPI_RSC_TABLE_SIZE (AcpiRsConvertGenericReg)},
133
134 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
135 sizeof (AML_RESOURCE_GENERIC_REGISTER),
136 0},
137 /*
138 * These fields are contiguous in both the source and destination:
139 * Address Space ID
140 * Register Bit Width
141 * Register Bit Offset
142 * Access Size
143 */
144 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.GenericReg.SpaceId),
145 AML_OFFSET (GenericReg.AddressSpaceId),
146 4},
147
148 /* Get the Register Address */
149
150 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET (Data.GenericReg.Address),
151 AML_OFFSET (GenericReg.Address),
152 1}
153 };
154
155
156 /*******************************************************************************
157 *
158 * AcpiRsConvertEndDpf
159 *
160 ******************************************************************************/
161
162 ACPI_RSCONVERT_INFO AcpiRsConvertEndDpf[2] =
163 {
164 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT,
165 ACPI_RS_SIZE_MIN,
166 ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndDpf)},
167
168 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT,
169 sizeof (AML_RESOURCE_END_DEPENDENT),
170 0}
171 };
172
173
174 /*******************************************************************************
175 *
176 * AcpiRsConvertEndTag
177 *
178 ******************************************************************************/
179
180 ACPI_RSCONVERT_INFO AcpiRsConvertEndTag[2] =
181 {
182 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG,
183 ACPI_RS_SIZE_MIN,
184 ACPI_RSC_TABLE_SIZE (AcpiRsConvertEndTag)},
185
186 /*
187 * Note: The checksum field is set to zero, meaning that the resource
188 * data is treated as if the checksum operation succeeded.
189 * (ACPI Spec 1.0b Section 6.4.2.8)
190 */
191 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
192 sizeof (AML_RESOURCE_END_TAG),
193 0}
194 };
195
196
197 /*******************************************************************************
198 *
199 * AcpiRsGetStartDpf
200 *
201 ******************************************************************************/
202
203 ACPI_RSCONVERT_INFO AcpiRsGetStartDpf[6] =
204 {
205 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT,
206 ACPI_RS_SIZE (ACPI_RESOURCE_START_DEPENDENT),
207 ACPI_RSC_TABLE_SIZE (AcpiRsGetStartDpf)},
208
209 /* Defaults for Compatibility and Performance priorities */
210
211 {ACPI_RSC_SET8, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
212 ACPI_ACCEPTABLE_CONFIGURATION,
213 2},
214
215 /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */
216
217 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.DescriptorLength),
218 AML_OFFSET (StartDpf.DescriptorType),
219 0},
220
221 /* All done if there is no flag byte present in the descriptor */
222
223 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
224
225 /* Flag byte is present, get the flags */
226
227 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
228 AML_OFFSET (StartDpf.Flags),
229 0},
230
231 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
232 AML_OFFSET (StartDpf.Flags),
233 2}
234 };
235
236
237 /*******************************************************************************
238 *
239 * AcpiRsSetStartDpf
240 *
241 ******************************************************************************/
242
243 ACPI_RSCONVERT_INFO AcpiRsSetStartDpf[10] =
244 {
245 /* Start with a default descriptor of length 1 */
246
247 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
248 sizeof (AML_RESOURCE_START_DEPENDENT),
249 ACPI_RSC_TABLE_SIZE (AcpiRsSetStartDpf)},
250
251 /* Set the default flag values */
252
253 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
254 AML_OFFSET (StartDpf.Flags),
255 0},
256
257 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
258 AML_OFFSET (StartDpf.Flags),
259 2},
260 /*
261 * All done if the output descriptor length is required to be 1
262 * (i.e., optimization to 0 bytes cannot be attempted)
263 */
264 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
265 ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
266 1},
267
268 /* Set length to 0 bytes (no flags byte) */
269
270 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)},
271
272 /*
273 * All done if the output descriptor length is required to be 0.
274 *
275 * TBD: Perhaps we should check for error if input flags are not
276 * compatible with a 0-byte descriptor.
277 */
278 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
279 ACPI_RS_OFFSET(Data.StartDpf.DescriptorLength),
280 0},
281
282 /* Reset length to 1 byte (descriptor with flags byte) */
283
284 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_START_DEPENDENT)},
285
286
287 /*
288 * All done if flags byte is necessary -- if either priority value
289 * is not ACPI_ACCEPTABLE_CONFIGURATION
290 */
291 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
292 ACPI_RS_OFFSET (Data.StartDpf.CompatibilityPriority),
293 ACPI_ACCEPTABLE_CONFIGURATION},
294
295 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
296 ACPI_RS_OFFSET (Data.StartDpf.PerformanceRobustness),
297 ACPI_ACCEPTABLE_CONFIGURATION},
298
299 /* Flag byte is not necessary */
300
301 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_START_DEPENDENT_NOPRIO)}
302 };