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1da177e4 LT |
1 | /******************************************************************************* |
2 | * | |
3 | * Module Name: rsirq - IRQ resource descriptors | |
4 | * | |
5 | ******************************************************************************/ | |
6 | ||
7 | /* | |
77848130 | 8 | * Copyright (C) 2000 - 2012, 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 | 49 | ACPI_MODULE_NAME("rsirq") |
1da177e4 LT |
50 | |
51 | /******************************************************************************* | |
52 | * | |
0897831b | 53 | * acpi_rs_get_irq |
1da177e4 LT |
54 | * |
55 | ******************************************************************************/ | |
1d5b285d | 56 | struct acpi_rsconvert_info acpi_rs_get_irq[8] = { |
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 | ||
83 | /* Get flags: Triggering[0], Polarity[3], Sharing[4] */ | |
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 | ||
93 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), | |
94 | AML_OFFSET(irq.flags), | |
95 | 4} | |
96 | }; | |
1da177e4 | 97 | |
1da177e4 LT |
98 | /******************************************************************************* |
99 | * | |
0897831b | 100 | * acpi_rs_set_irq |
1da177e4 LT |
101 | * |
102 | ******************************************************************************/ | |
103 | ||
1d5b285d BM |
104 | struct acpi_rsconvert_info acpi_rs_set_irq[13] = { |
105 | /* Start with a default descriptor of length 3 */ | |
106 | ||
0897831b BM |
107 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ, |
108 | sizeof(struct aml_resource_irq), | |
109 | ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)}, | |
1da177e4 | 110 | |
50eca3eb BM |
111 | /* Convert interrupt list to 16-bit IRQ bitmask */ |
112 | ||
0897831b BM |
113 | {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]), |
114 | AML_OFFSET(irq.irq_mask), | |
115 | ACPI_RS_OFFSET(data.irq.interrupt_count)}, | |
116 | ||
1d5b285d | 117 | /* Set the flags byte */ |
50eca3eb | 118 | |
0897831b BM |
119 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering), |
120 | AML_OFFSET(irq.flags), | |
121 | 0}, | |
50eca3eb | 122 | |
0897831b BM |
123 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity), |
124 | AML_OFFSET(irq.flags), | |
125 | 3}, | |
1da177e4 | 126 | |
0897831b BM |
127 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable), |
128 | AML_OFFSET(irq.flags), | |
129 | 4}, | |
1d5b285d BM |
130 | |
131 | /* | |
132 | * All done if the output descriptor length is required to be 3 | |
133 | * (i.e., optimization to 2 bytes cannot be attempted) | |
134 | */ | |
135 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
136 | ACPI_RS_OFFSET(data.irq.descriptor_length), | |
137 | 3}, | |
138 | ||
139 | /* Set length to 2 bytes (no flags byte) */ | |
140 | ||
141 | {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}, | |
142 | ||
143 | /* | |
144 | * All done if the output descriptor length is required to be 2. | |
145 | * | |
146 | * TBD: Perhaps we should check for error if input flags are not | |
147 | * compatible with a 2-byte descriptor. | |
148 | */ | |
149 | {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE, | |
150 | ACPI_RS_OFFSET(data.irq.descriptor_length), | |
151 | 2}, | |
152 | ||
153 | /* Reset length to 3 bytes (descriptor with flags byte) */ | |
154 | ||
155 | {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)}, | |
156 | ||
1da177e4 | 157 | /* |
0897831b BM |
158 | * Check if the flags byte is necessary. Not needed if the flags are: |
159 | * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE | |
1da177e4 | 160 | */ |
0897831b BM |
161 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
162 | ACPI_RS_OFFSET(data.irq.triggering), | |
163 | ACPI_EDGE_SENSITIVE}, | |
44f6c012 | 164 | |
0897831b BM |
165 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
166 | ACPI_RS_OFFSET(data.irq.polarity), | |
167 | ACPI_ACTIVE_HIGH}, | |
1da177e4 | 168 | |
0897831b BM |
169 | {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE, |
170 | ACPI_RS_OFFSET(data.irq.sharable), | |
171 | ACPI_EXCLUSIVE}, | |
1da177e4 | 172 | |
1d5b285d | 173 | /* We can optimize to a 2-byte irq_no_flags() descriptor */ |
44f6c012 | 174 | |
0897831b BM |
175 | {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)} |
176 | }; | |
1da177e4 | 177 | |
1da177e4 LT |
178 | /******************************************************************************* |
179 | * | |
0897831b | 180 | * acpi_rs_convert_ext_irq |
1da177e4 LT |
181 | * |
182 | ******************************************************************************/ | |
183 | ||
0897831b BM |
184 | struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = { |
185 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ, | |
186 | ACPI_RS_SIZE(struct acpi_resource_extended_irq), | |
187 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)}, | |
1da177e4 | 188 | |
0897831b BM |
189 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ, |
190 | sizeof(struct aml_resource_extended_irq), | |
191 | 0}, | |
1da177e4 | 192 | |
0897831b | 193 | /* Flag bits */ |
44f6c012 | 194 | |
0897831b BM |
195 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer), |
196 | AML_OFFSET(extended_irq.flags), | |
197 | 0}, | |
1da177e4 | 198 | |
0897831b BM |
199 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering), |
200 | AML_OFFSET(extended_irq.flags), | |
201 | 1}, | |
50eca3eb | 202 | |
0897831b BM |
203 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity), |
204 | AML_OFFSET(extended_irq.flags), | |
205 | 2}, | |
1da177e4 | 206 | |
0897831b BM |
207 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable), |
208 | AML_OFFSET(extended_irq.flags), | |
209 | 3}, | |
1da177e4 | 210 | |
0897831b | 211 | /* IRQ Table length (Byte4) */ |
44f6c012 | 212 | |
0897831b BM |
213 | {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count), |
214 | AML_OFFSET(extended_irq.interrupt_count), | |
215 | sizeof(u32)} | |
216 | , | |
1da177e4 | 217 | |
0897831b | 218 | /* Copy every IRQ in the table, each is 32 bits */ |
44f6c012 | 219 | |
0897831b BM |
220 | {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), |
221 | AML_OFFSET(extended_irq.interrupts[0]), | |
222 | 0} | |
223 | , | |
1da177e4 | 224 | |
0897831b | 225 | /* Optional resource_source (Index and String) */ |
1da177e4 | 226 | |
0897831b BM |
227 | {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source), |
228 | ACPI_RS_OFFSET(data.extended_irq.interrupts[0]), | |
229 | sizeof(struct aml_resource_extended_irq)} | |
230 | }; | |
1da177e4 | 231 | |
1da177e4 LT |
232 | /******************************************************************************* |
233 | * | |
0897831b | 234 | * acpi_rs_convert_dma |
1da177e4 LT |
235 | * |
236 | ******************************************************************************/ | |
237 | ||
0897831b BM |
238 | struct acpi_rsconvert_info acpi_rs_convert_dma[6] = { |
239 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA, | |
240 | ACPI_RS_SIZE(struct acpi_resource_dma), | |
241 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)}, | |
1da177e4 | 242 | |
0897831b BM |
243 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA, |
244 | sizeof(struct aml_resource_dma), | |
245 | 0}, | |
44f6c012 | 246 | |
0897831b | 247 | /* Flags: transfer preference, bus mastering, channel speed */ |
1da177e4 | 248 | |
0897831b BM |
249 | {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer), |
250 | AML_OFFSET(dma.flags), | |
251 | 0}, | |
44f6c012 | 252 | |
0897831b BM |
253 | {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master), |
254 | AML_OFFSET(dma.flags), | |
255 | 2}, | |
1da177e4 | 256 | |
0897831b BM |
257 | {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type), |
258 | AML_OFFSET(dma.flags), | |
259 | 5}, | |
44f6c012 | 260 | |
0897831b | 261 | /* DMA channel mask bits */ |
1da177e4 | 262 | |
0897831b BM |
263 | {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]), |
264 | AML_OFFSET(dma.dma_channel_mask), | |
265 | ACPI_RS_OFFSET(data.dma.channel_count)} | |
266 | }; | |
e0fe0a8d LM |
267 | |
268 | /******************************************************************************* | |
269 | * | |
270 | * acpi_rs_convert_fixed_dma | |
271 | * | |
272 | ******************************************************************************/ | |
273 | ||
274 | struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = { | |
275 | {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA, | |
276 | ACPI_RS_SIZE(struct acpi_resource_fixed_dma), | |
277 | ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)}, | |
278 | ||
279 | {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA, | |
280 | sizeof(struct aml_resource_fixed_dma), | |
281 | 0}, | |
282 | ||
283 | /* | |
284 | * These fields are contiguous in both the source and destination: | |
285 | * request_lines | |
286 | * Channels | |
287 | */ | |
288 | ||
289 | {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines), | |
290 | AML_OFFSET(fixed_dma.request_lines), | |
291 | 2}, | |
292 | ||
293 | {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width), | |
294 | AML_OFFSET(fixed_dma.width), | |
295 | 1}, | |
296 | ||
297 | }; |