1 /*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ 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("rsirq")
49
50 /*******************************************************************************
51 *
52 * acpi_rs_get_irq
53 *
54 ******************************************************************************/
55 struct acpi_rsconvert_info acpi_rs_get_irq[7] = {
56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
57 ACPI_RS_SIZE(struct acpi_resource_irq),
58 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
59
60 /* Get the IRQ mask (bytes 1:2) */
61
62 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
63 AML_OFFSET(irq.irq_mask),
64 ACPI_RS_OFFSET(data.irq.interrupt_count)},
65
66 /* Set default flags (others are zero) */
67
68 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
69 ACPI_EDGE_SENSITIVE,
70 1},
71
72 /* All done if no flag byte present in descriptor */
73
74 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
75
76 /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
77
78 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
79 AML_OFFSET(irq.flags),
80 0},
81
82 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
83 AML_OFFSET(irq.flags),
84 3},
85
86 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
87 AML_OFFSET(irq.flags),
88 4}
89 };
90
91 /*******************************************************************************
92 *
93 * acpi_rs_set_irq
94 *
95 ******************************************************************************/
96
97 struct acpi_rsconvert_info acpi_rs_set_irq[9] = {
98 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
99 sizeof(struct aml_resource_irq),
100 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
101
102 /* Convert interrupt list to 16-bit IRQ bitmask */
103
104 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
105 AML_OFFSET(irq.irq_mask),
106 ACPI_RS_OFFSET(data.irq.interrupt_count)},
107
108 /* Set the flags byte by default */
109
110 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
111 AML_OFFSET(irq.flags),
112 0},
113
114 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
115 AML_OFFSET(irq.flags),
116 3},
117
118 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
119 AML_OFFSET(irq.flags),
120 4},
121 /*
122 * Check if the flags byte is necessary. Not needed if the flags are:
123 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
124 */
125 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
126 ACPI_RS_OFFSET(data.irq.triggering),
127 ACPI_EDGE_SENSITIVE},
128
129 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
130 ACPI_RS_OFFSET(data.irq.polarity),
131 ACPI_ACTIVE_HIGH},
132
133 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
134 ACPI_RS_OFFSET(data.irq.sharable),
135 ACPI_EXCLUSIVE},
136
137 /* irq_no_flags() descriptor can be used */
138
139 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
140 };
141
142 /*******************************************************************************
143 *
144 * acpi_rs_convert_ext_irq
145 *
146 ******************************************************************************/
147
148 struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
149 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
150 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
151 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
152
153 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
154 sizeof(struct aml_resource_extended_irq),
155 0},
156
157 /* Flag bits */
158
159 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
160 AML_OFFSET(extended_irq.flags),
161 0},
162
163 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
164 AML_OFFSET(extended_irq.flags),
165 1},
166
167 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
168 AML_OFFSET(extended_irq.flags),
169 2},
170
171 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
172 AML_OFFSET(extended_irq.flags),
173 3},
174
175 /* IRQ Table length (Byte4) */
176
177 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
178 AML_OFFSET(extended_irq.interrupt_count),
179 sizeof(u32)}
180 ,
181
182 /* Copy every IRQ in the table, each is 32 bits */
183
184 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
185 AML_OFFSET(extended_irq.interrupts[0]),
186 0}
187 ,
188
189 /* Optional resource_source (Index and String) */
190
191 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
192 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
193 sizeof(struct aml_resource_extended_irq)}
194 };
195
196 /*******************************************************************************
197 *
198 * acpi_rs_convert_dma
199 *
200 ******************************************************************************/
201
202 struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
203 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
204 ACPI_RS_SIZE(struct acpi_resource_dma),
205 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
206
207 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
208 sizeof(struct aml_resource_dma),
209 0},
210
211 /* Flags: transfer preference, bus mastering, channel speed */
212
213 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
214 AML_OFFSET(dma.flags),
215 0},
216
217 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
218 AML_OFFSET(dma.flags),
219 2},
220
221 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
222 AML_OFFSET(dma.flags),
223 5},
224
225 /* DMA channel mask bits */
226
227 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
228 AML_OFFSET(dma.dma_channel_mask),
229 ACPI_RS_OFFSET(data.dma.channel_count)}
230 };
231
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