Merge remote-tracking branch 'omap_dss2/for-next'
[deliverable/linux.git] / drivers / acpi / acpica / rsirq.c
CommitLineData
1da177e4
LT
1/*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7/*
c8100dc4 8 * Copyright (C) 2000 - 2016, 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 44#include <acpi/acpi.h>
e2f7a777
LB
45#include "accommon.h"
46#include "acresrc.h"
1da177e4
LT
47
48#define _COMPONENT ACPI_RESOURCES
4be44fcd 49ACPI_MODULE_NAME("rsirq")
1da177e4
LT
50
51/*******************************************************************************
52 *
0897831b 53 * acpi_rs_get_irq
1da177e4
LT
54 *
55 ******************************************************************************/
9cea6249 56struct acpi_rsconvert_info acpi_rs_get_irq[9] = {
0897831b
BM
57 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
58 ACPI_RS_SIZE(struct acpi_resource_irq),
59 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
44f6c012 60
50eca3eb 61 /* Get the IRQ mask (bytes 1:2) */
1da177e4 62
0897831b
BM
63 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
64 AML_OFFSET(irq.irq_mask),
65 ACPI_RS_OFFSET(data.irq.interrupt_count)},
66
67 /* Set default flags (others are zero) */
68
69 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
70 ACPI_EDGE_SENSITIVE,
71 1},
72
1d5b285d
BM
73 /* Get the descriptor length (2 or 3 for IRQ descriptor) */
74
75 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
76 AML_OFFSET(irq.descriptor_type),
77 0},
78
0897831b
BM
79 /* All done if no flag byte present in descriptor */
80
81 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
82
9cea6249 83 /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
0897831b
BM
84
85 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
86 AML_OFFSET(irq.flags),
87 0},
88
89 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
90 AML_OFFSET(irq.flags),
91 3},
92
9cea6249 93 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
0897831b 94 AML_OFFSET(irq.flags),
9cea6249
BM
95 4},
96
97 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
98 AML_OFFSET(irq.flags),
99 5}
0897831b 100};
1da177e4 101
1da177e4
LT
102/*******************************************************************************
103 *
0897831b 104 * acpi_rs_set_irq
1da177e4
LT
105 *
106 ******************************************************************************/
107
9cea6249 108struct acpi_rsconvert_info acpi_rs_set_irq[14] = {
1d5b285d
BM
109 /* Start with a default descriptor of length 3 */
110
0897831b
BM
111 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
112 sizeof(struct aml_resource_irq),
113 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
1da177e4 114
50eca3eb
BM
115 /* Convert interrupt list to 16-bit IRQ bitmask */
116
0897831b
BM
117 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
118 AML_OFFSET(irq.irq_mask),
119 ACPI_RS_OFFSET(data.irq.interrupt_count)},
120
9cea6249 121 /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
50eca3eb 122
0897831b
BM
123 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
124 AML_OFFSET(irq.flags),
125 0},
50eca3eb 126
0897831b
BM
127 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
128 AML_OFFSET(irq.flags),
129 3},
1da177e4 130
9cea6249 131 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
0897831b
BM
132 AML_OFFSET(irq.flags),
133 4},
1d5b285d 134
9cea6249
BM
135 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
136 AML_OFFSET(irq.flags),
137 5},
138
1d5b285d
BM
139 /*
140 * All done if the output descriptor length is required to be 3
141 * (i.e., optimization to 2 bytes cannot be attempted)
142 */
143 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
144 ACPI_RS_OFFSET(data.irq.descriptor_length),
145 3},
146
147 /* Set length to 2 bytes (no flags byte) */
148
149 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
150
151 /*
152 * All done if the output descriptor length is required to be 2.
153 *
154 * TBD: Perhaps we should check for error if input flags are not
155 * compatible with a 2-byte descriptor.
156 */
157 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
158 ACPI_RS_OFFSET(data.irq.descriptor_length),
159 2},
160
161 /* Reset length to 3 bytes (descriptor with flags byte) */
162
163 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
164
1da177e4 165 /*
0897831b
BM
166 * Check if the flags byte is necessary. Not needed if the flags are:
167 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
1da177e4 168 */
0897831b
BM
169 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
170 ACPI_RS_OFFSET(data.irq.triggering),
171 ACPI_EDGE_SENSITIVE},
44f6c012 172
0897831b
BM
173 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
174 ACPI_RS_OFFSET(data.irq.polarity),
175 ACPI_ACTIVE_HIGH},
1da177e4 176
0897831b
BM
177 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
178 ACPI_RS_OFFSET(data.irq.sharable),
179 ACPI_EXCLUSIVE},
1da177e4 180
1d5b285d 181 /* We can optimize to a 2-byte irq_no_flags() descriptor */
44f6c012 182
0897831b
BM
183 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
184};
1da177e4 185
1da177e4
LT
186/*******************************************************************************
187 *
0897831b 188 * acpi_rs_convert_ext_irq
1da177e4
LT
189 *
190 ******************************************************************************/
191
9cea6249 192struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {
0897831b
BM
193 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
194 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
195 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
1da177e4 196
0897831b
BM
197 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
198 sizeof(struct aml_resource_extended_irq),
199 0},
1da177e4 200
f7b488e2
AL
201 /*
202 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
9cea6249 203 * Sharing[3], Wake[4]
f7b488e2 204 */
0897831b
BM
205 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
206 AML_OFFSET(extended_irq.flags),
207 0},
1da177e4 208
0897831b
BM
209 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
210 AML_OFFSET(extended_irq.flags),
211 1},
50eca3eb 212
0897831b
BM
213 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
214 AML_OFFSET(extended_irq.flags),
215 2},
1da177e4 216
9cea6249 217 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
0897831b
BM
218 AML_OFFSET(extended_irq.flags),
219 3},
1da177e4 220
9cea6249
BM
221 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),
222 AML_OFFSET(extended_irq.flags),
223 4},
224
0897831b 225 /* IRQ Table length (Byte4) */
44f6c012 226
0897831b
BM
227 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
228 AML_OFFSET(extended_irq.interrupt_count),
3e8214e5 229 sizeof(u32)},
1da177e4 230
0897831b 231 /* Copy every IRQ in the table, each is 32 bits */
44f6c012 232
0897831b
BM
233 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
234 AML_OFFSET(extended_irq.interrupts[0]),
3e8214e5 235 0},
1da177e4 236
0897831b 237 /* Optional resource_source (Index and String) */
1da177e4 238
0897831b
BM
239 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
240 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
241 sizeof(struct aml_resource_extended_irq)}
242};
1da177e4 243
1da177e4
LT
244/*******************************************************************************
245 *
0897831b 246 * acpi_rs_convert_dma
1da177e4
LT
247 *
248 ******************************************************************************/
249
0897831b
BM
250struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
251 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
252 ACPI_RS_SIZE(struct acpi_resource_dma),
253 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
1da177e4 254
0897831b
BM
255 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
256 sizeof(struct aml_resource_dma),
257 0},
44f6c012 258
0897831b 259 /* Flags: transfer preference, bus mastering, channel speed */
1da177e4 260
0897831b
BM
261 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
262 AML_OFFSET(dma.flags),
263 0},
44f6c012 264
0897831b
BM
265 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
266 AML_OFFSET(dma.flags),
267 2},
1da177e4 268
0897831b
BM
269 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
270 AML_OFFSET(dma.flags),
271 5},
44f6c012 272
0897831b 273 /* DMA channel mask bits */
1da177e4 274
0897831b
BM
275 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
276 AML_OFFSET(dma.dma_channel_mask),
277 ACPI_RS_OFFSET(data.dma.channel_count)}
278};
e0fe0a8d
LM
279
280/*******************************************************************************
281 *
282 * acpi_rs_convert_fixed_dma
283 *
284 ******************************************************************************/
285
286struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
287 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
288 ACPI_RS_SIZE(struct acpi_resource_fixed_dma),
289 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)},
290
291 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
292 sizeof(struct aml_resource_fixed_dma),
293 0},
294
295 /*
296 * These fields are contiguous in both the source and destination:
297 * request_lines
298 * Channels
299 */
e0fe0a8d
LM
300 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),
301 AML_OFFSET(fixed_dma.request_lines),
302 2},
303
304 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),
305 AML_OFFSET(fixed_dma.width),
306 1},
e0fe0a8d 307};
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