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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 | 13 | ACPI_MODULE_NAME("rsirq") |
1da177e4 LT |
14 | |
15 | /******************************************************************************* | |
16 | * | |
0897831b | 17 | * acpi_rs_get_irq |
1da177e4 LT |
18 | * |
19 | ******************************************************************************/ | |
9cea6249 | 20 | struct 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 | 72 | struct 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 | 156 | struct 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 |
214 | struct 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 | ||
250 | struct 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 | }; |