1 /*******************************************************************************
2 *
3 * Module Name: rsio - IO and DMA resource descriptors
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2007, R. Byron Moore
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 #include <acpi/acpi.h>
45 #include <acpi/acresrc.h>
46
47 #define _COMPONENT ACPI_RESOURCES
48 ACPI_MODULE_NAME("rsio")
49
50 /*******************************************************************************
51 *
52 * acpi_rs_convert_io
53 *
54 ******************************************************************************/
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)},
59
60 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
61 sizeof(struct aml_resource_io),
62 0},
63
64 /* Decode flag */
65
66 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode),
67 AML_OFFSET(io.flags),
68 0},
69 /*
70 * These fields are contiguous in both the source and destination:
71 * Address Alignment
72 * Length
73 * Minimum Base Address
74 * Maximum Base Address
75 */
76 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment),
77 AML_OFFSET(io.alignment),
78 2},
79
80 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum),
81 AML_OFFSET(io.minimum),
82 2}
83 };
84
85 /*******************************************************************************
86 *
87 * acpi_rs_convert_fixed_io
88 *
89 ******************************************************************************/
90
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)},
95
96 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
97 sizeof(struct aml_resource_fixed_io),
98 0},
99 /*
100 * These fields are contiguous in both the source and destination:
101 * Base Address
102 * Length
103 */
104 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length),
105 AML_OFFSET(fixed_io.address_length),
106 1},
107
108 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address),
109 AML_OFFSET(fixed_io.address),
110 1}
111 };
112
113 /*******************************************************************************
114 *
115 * acpi_rs_convert_generic_reg
116 *
117 ******************************************************************************/
118
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)},
123
124 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
125 sizeof(struct aml_resource_generic_register),
126 0},
127 /*
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
133 */
134 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id),
135 AML_OFFSET(generic_reg.address_space_id),
136 4},
137
138 /* Get the Register Address */
139
140 {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address),
141 AML_OFFSET(generic_reg.address),
142 1}
143 };
144
145 /*******************************************************************************
146 *
147 * acpi_rs_convert_end_dpf
148 *
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 /*******************************************************************************
162 *
163 * acpi_rs_convert_end_tag
164 *
165 ******************************************************************************/
166
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)},
171
172 /*
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)
176 */
177 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
178 sizeof(struct aml_resource_end_tag),
179 0}
180 };
181
182 /*******************************************************************************
183 *
184 * acpi_rs_get_start_dpf
185 *
186 ******************************************************************************/
187
188 struct acpi_rsconvert_info acpi_rs_get_start_dpf[5] = {
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)},
192
193 /* Defaults for Compatibility and Performance priorities */
194
195 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
196 ACPI_ACCEPTABLE_CONFIGURATION,
197 2},
198
199 /* All done if there is no flag byte present in the descriptor */
200
201 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
202
203 /* Flag byte is present, get the flags */
204
205 {ACPI_RSC_2BITFLAG,
206 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
207 AML_OFFSET(start_dpf.flags),
208 0},
209
210 {ACPI_RSC_2BITFLAG,
211 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
212 AML_OFFSET(start_dpf.flags),
213 2}
214 };
215
216 /*******************************************************************************
217 *
218 * acpi_rs_set_start_dpf
219 *
220 ******************************************************************************/
221
222 struct acpi_rsconvert_info acpi_rs_set_start_dpf[6] = {
223 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
224 sizeof(struct aml_resource_start_dependent),
225 ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)},
226
227 /* Set the default flag values */
228
229 {ACPI_RSC_2BITFLAG,
230 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
231 AML_OFFSET(start_dpf.flags),
232 0},
233
234 {ACPI_RSC_2BITFLAG,
235 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
236 AML_OFFSET(start_dpf.flags),
237 2},
238 /*
239 * All done if flags byte is necessary -- if either priority value
240 * is not ACPI_ACCEPTABLE_CONFIGURATION
241 */
242 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
243 ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
244 ACPI_ACCEPTABLE_CONFIGURATION},
245
246 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
247 ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
248 ACPI_ACCEPTABLE_CONFIGURATION},
249
250 /* Flag byte is not necessary */
251
252 {ACPI_RSC_LENGTH, 0, 0,
253 sizeof(struct aml_resource_start_dependent_noprio)}
254 };
255
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