]> Git Repo - linux.git/blame - drivers/acpi/acpica/rsirq.c
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux.git] / drivers / acpi / acpica / rsirq.c
CommitLineData
95857638 1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
1da177e4
LT
2/*******************************************************************************
3 *
4 * Module Name: rsirq - IRQ resource descriptors
5 *
6 ******************************************************************************/
7
1da177e4 8#include <acpi/acpi.h>
e2f7a777
LB
9#include "accommon.h"
10#include "acresrc.h"
1da177e4
LT
11
12#define _COMPONENT ACPI_RESOURCES
4be44fcd 13ACPI_MODULE_NAME("rsirq")
1da177e4
LT
14
15/*******************************************************************************
16 *
0897831b 17 * acpi_rs_get_irq
1da177e4
LT
18 *
19 ******************************************************************************/
9cea6249 20struct acpi_rsconvert_info acpi_rs_get_irq[9] = {
0897831b
BM
21 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
22 ACPI_RS_SIZE(struct acpi_resource_irq),
23 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
44f6c012 24
50eca3eb 25 /* Get the IRQ mask (bytes 1:2) */
1da177e4 26
0897831b
BM
27 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
28 AML_OFFSET(irq.irq_mask),
29 ACPI_RS_OFFSET(data.irq.interrupt_count)},
30
31 /* Set default flags (others are zero) */
32
33 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
34 ACPI_EDGE_SENSITIVE,
35 1},
36
1d5b285d
BM
37 /* Get the descriptor length (2 or 3 for IRQ descriptor) */
38
39 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
40 AML_OFFSET(irq.descriptor_type),
41 0},
42
0897831b
BM
43 /* All done if no flag byte present in descriptor */
44
45 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
46
9cea6249 47 /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
0897831b
BM
48
49 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
50 AML_OFFSET(irq.flags),
51 0},
52
53 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
54 AML_OFFSET(irq.flags),
55 3},
56
9cea6249 57 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
0897831b 58 AML_OFFSET(irq.flags),
9cea6249
BM
59 4},
60
61 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
62 AML_OFFSET(irq.flags),
63 5}
0897831b 64};
1da177e4 65
1da177e4
LT
66/*******************************************************************************
67 *
0897831b 68 * acpi_rs_set_irq
1da177e4
LT
69 *
70 ******************************************************************************/
71
9cea6249 72struct acpi_rsconvert_info acpi_rs_set_irq[14] = {
1d5b285d
BM
73 /* Start with a default descriptor of length 3 */
74
0897831b
BM
75 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
76 sizeof(struct aml_resource_irq),
77 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
1da177e4 78
50eca3eb
BM
79 /* Convert interrupt list to 16-bit IRQ bitmask */
80
0897831b
BM
81 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
82 AML_OFFSET(irq.irq_mask),
83 ACPI_RS_OFFSET(data.irq.interrupt_count)},
84
9cea6249 85 /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
50eca3eb 86
0897831b
BM
87 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
88 AML_OFFSET(irq.flags),
89 0},
50eca3eb 90
0897831b
BM
91 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
92 AML_OFFSET(irq.flags),
93 3},
1da177e4 94
9cea6249 95 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
0897831b
BM
96 AML_OFFSET(irq.flags),
97 4},
1d5b285d 98
9cea6249
BM
99 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
100 AML_OFFSET(irq.flags),
101 5},
102
1d5b285d
BM
103 /*
104 * All done if the output descriptor length is required to be 3
105 * (i.e., optimization to 2 bytes cannot be attempted)
106 */
107 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
108 ACPI_RS_OFFSET(data.irq.descriptor_length),
109 3},
110
111 /* Set length to 2 bytes (no flags byte) */
112
113 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
114
115 /*
116 * All done if the output descriptor length is required to be 2.
117 *
118 * TBD: Perhaps we should check for error if input flags are not
119 * compatible with a 2-byte descriptor.
120 */
121 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
122 ACPI_RS_OFFSET(data.irq.descriptor_length),
123 2},
124
125 /* Reset length to 3 bytes (descriptor with flags byte) */
126
127 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
128
1da177e4 129 /*
0897831b
BM
130 * Check if the flags byte is necessary. Not needed if the flags are:
131 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
1da177e4 132 */
0897831b
BM
133 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
134 ACPI_RS_OFFSET(data.irq.triggering),
135 ACPI_EDGE_SENSITIVE},
44f6c012 136
0897831b
BM
137 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
138 ACPI_RS_OFFSET(data.irq.polarity),
139 ACPI_ACTIVE_HIGH},
1da177e4 140
0897831b
BM
141 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
142 ACPI_RS_OFFSET(data.irq.sharable),
143 ACPI_EXCLUSIVE},
1da177e4 144
1d5b285d 145 /* We can optimize to a 2-byte irq_no_flags() descriptor */
44f6c012 146
0897831b
BM
147 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
148};
1da177e4 149
1da177e4
LT
150/*******************************************************************************
151 *
0897831b 152 * acpi_rs_convert_ext_irq
1da177e4
LT
153 *
154 ******************************************************************************/
155
9cea6249 156struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {
0897831b
BM
157 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
158 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
159 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
1da177e4 160
0897831b
BM
161 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
162 sizeof(struct aml_resource_extended_irq),
163 0},
1da177e4 164
f7b488e2
AL
165 /*
166 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
9cea6249 167 * Sharing[3], Wake[4]
f7b488e2 168 */
0897831b
BM
169 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
170 AML_OFFSET(extended_irq.flags),
171 0},
1da177e4 172
0897831b
BM
173 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
174 AML_OFFSET(extended_irq.flags),
175 1},
50eca3eb 176
0897831b
BM
177 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
178 AML_OFFSET(extended_irq.flags),
179 2},
1da177e4 180
9cea6249 181 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
0897831b
BM
182 AML_OFFSET(extended_irq.flags),
183 3},
1da177e4 184
9cea6249
BM
185 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),
186 AML_OFFSET(extended_irq.flags),
187 4},
188
0897831b 189 /* IRQ Table length (Byte4) */
44f6c012 190
0897831b
BM
191 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
192 AML_OFFSET(extended_irq.interrupt_count),
3e8214e5 193 sizeof(u32)},
1da177e4 194
0897831b 195 /* Copy every IRQ in the table, each is 32 bits */
44f6c012 196
0897831b
BM
197 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
198 AML_OFFSET(extended_irq.interrupts[0]),
3e8214e5 199 0},
1da177e4 200
0897831b 201 /* Optional resource_source (Index and String) */
1da177e4 202
0897831b
BM
203 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
204 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
205 sizeof(struct aml_resource_extended_irq)}
206};
1da177e4 207
1da177e4
LT
208/*******************************************************************************
209 *
0897831b 210 * acpi_rs_convert_dma
1da177e4
LT
211 *
212 ******************************************************************************/
213
0897831b
BM
214struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
215 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
216 ACPI_RS_SIZE(struct acpi_resource_dma),
217 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
1da177e4 218
0897831b
BM
219 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
220 sizeof(struct aml_resource_dma),
221 0},
44f6c012 222
0897831b 223 /* Flags: transfer preference, bus mastering, channel speed */
1da177e4 224
0897831b
BM
225 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
226 AML_OFFSET(dma.flags),
227 0},
44f6c012 228
0897831b
BM
229 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
230 AML_OFFSET(dma.flags),
231 2},
1da177e4 232
0897831b
BM
233 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
234 AML_OFFSET(dma.flags),
235 5},
44f6c012 236
0897831b 237 /* DMA channel mask bits */
1da177e4 238
0897831b
BM
239 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
240 AML_OFFSET(dma.dma_channel_mask),
241 ACPI_RS_OFFSET(data.dma.channel_count)}
242};
e0fe0a8d
LM
243
244/*******************************************************************************
245 *
246 * acpi_rs_convert_fixed_dma
247 *
248 ******************************************************************************/
249
250struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
251 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
252 ACPI_RS_SIZE(struct acpi_resource_fixed_dma),
253 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)},
254
255 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
256 sizeof(struct aml_resource_fixed_dma),
257 0},
258
259 /*
260 * These fields are contiguous in both the source and destination:
261 * request_lines
262 * Channels
263 */
e0fe0a8d
LM
264 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),
265 AML_OFFSET(fixed_dma.request_lines),
266 2},
267
268 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),
269 AML_OFFSET(fixed_dma.width),
270 1},
e0fe0a8d 271};
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