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
48ACPI_MODULE_NAME("rsio")
49
50/*******************************************************************************
51 *
52 * acpi_rs_convert_io
53 *
54 ******************************************************************************/
55struct 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
91struct 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
119struct 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
151struct 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
167struct 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
188struct 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
222struct 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