1 /*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, Intel Corp.
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 #define __RSIRQ_C__
45
46 #include "acpi.h"
47 #include "accommon.h"
48 #include "acresrc.h"
49
50 #define _COMPONENT ACPI_RESOURCES
51 ACPI_MODULE_NAME ("rsirq")
52
53
54 /*******************************************************************************
55 *
56 * AcpiRsGetIrq
57 *
58 ******************************************************************************/
59
60 ACPI_RSCONVERT_INFO AcpiRsGetIrq[9] =
61 {
62 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
63 ACPI_RS_SIZE (ACPI_RESOURCE_IRQ),
64 ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)},
65
66 /* Get the IRQ mask (bytes 1:2) */
67
68 {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
69 AML_OFFSET (Irq.IrqMask),
70 ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
71
72 /* Set default flags (others are zero) */
73
74 {ACPI_RSC_SET8, ACPI_RS_OFFSET (Data.Irq.Triggering),
75 ACPI_EDGE_SENSITIVE,
76 1},
77
78 /* Get the descriptor length (2 or 3 for IRQ descriptor) */
79
80 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength),
81 AML_OFFSET (Irq.DescriptorType),
82 0},
83
84 /* All done if no flag byte present in descriptor */
85
86 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
87
88 /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
89
90 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
91 AML_OFFSET (Irq.Flags),
92 0},
93
94 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
95 AML_OFFSET (Irq.Flags),
96 3},
97
98 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
99 AML_OFFSET (Irq.Flags),
100 4},
101
102 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
103 AML_OFFSET (Irq.Flags),
104 5}
105 };
106
107
108 /*******************************************************************************
109 *
110 * AcpiRsSetIrq
111 *
112 ******************************************************************************/
113
114 ACPI_RSCONVERT_INFO AcpiRsSetIrq[14] =
115 {
116 /* Start with a default descriptor of length 3 */
117
118 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
119 sizeof (AML_RESOURCE_IRQ),
120 ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
121
122 /* Convert interrupt list to 16-bit IRQ bitmask */
123
124 {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
125 AML_OFFSET (Irq.IrqMask),
126 ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
127
128 /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
129
130 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
131 AML_OFFSET (Irq.Flags),
132 0},
133
134 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
135 AML_OFFSET (Irq.Flags),
136 3},
137
138 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
139 AML_OFFSET (Irq.Flags),
140 4},
141
142 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
143 AML_OFFSET (Irq.Flags),
144 5},
145
146 /*
147 * All done if the output descriptor length is required to be 3
148 * (i.e., optimization to 2 bytes cannot be attempted)
149 */
150 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
151 ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
152 3},
153
154 /* Set length to 2 bytes (no flags byte) */
155
156 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
157
158 /*
159 * All done if the output descriptor length is required to be 2.
160 *
161 * TBD: Perhaps we should check for error if input flags are not
162 * compatible with a 2-byte descriptor.
163 */
164 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
165 ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
166 2},
167
168 /* Reset length to 3 bytes (descriptor with flags byte) */
169
170 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ)},
171
172 /*
173 * Check if the flags byte is necessary. Not needed if the flags are:
174 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
175 */
176 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
177 ACPI_RS_OFFSET (Data.Irq.Triggering),
178 ACPI_EDGE_SENSITIVE},
179
180 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
181 ACPI_RS_OFFSET (Data.Irq.Polarity),
182 ACPI_ACTIVE_HIGH},
183
184 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
185 ACPI_RS_OFFSET (Data.Irq.Sharable),
186 ACPI_EXCLUSIVE},
187
188 /* We can optimize to a 2-byte IrqNoFlags() descriptor */
189
190 {ACPI_RSC_LENGTH, 0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
191 };
192
193
194 /*******************************************************************************
195 *
196 * AcpiRsConvertExtIrq
197 *
198 ******************************************************************************/
199
200 ACPI_RSCONVERT_INFO AcpiRsConvertExtIrq[10] =
201 {
202 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
203 ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
204 ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
205
206 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
207 sizeof (AML_RESOURCE_EXTENDED_IRQ),
208 0},
209
210 /*
211 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
212 * Sharing[3], Wake[4]
213 */
214 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
215 AML_OFFSET (ExtendedIrq.Flags),
216 0},
217
218 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
219 AML_OFFSET (ExtendedIrq.Flags),
220 1},
221
222 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
223 AML_OFFSET (ExtendedIrq.Flags),
224 2},
225
226 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable),
227 AML_OFFSET (ExtendedIrq.Flags),
228 3},
229
230 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.WakeCapable),
231 AML_OFFSET (ExtendedIrq.Flags),
232 4},
233
234 /* IRQ Table length (Byte4) */
235
236 {ACPI_RSC_COUNT, ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
237 AML_OFFSET (ExtendedIrq.InterruptCount),
238 sizeof (UINT32)},
239
240 /* Copy every IRQ in the table, each is 32 bits */
241
242 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
243 AML_OFFSET (ExtendedIrq.Interrupts[0]),
244 0},
245
246 /* Optional ResourceSource (Index and String) */
247
248 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
249 ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
250 sizeof (AML_RESOURCE_EXTENDED_IRQ)}
251 };
252
253
254 /*******************************************************************************
255 *
256 * AcpiRsConvertDma
257 *
258 ******************************************************************************/
259
260 ACPI_RSCONVERT_INFO AcpiRsConvertDma[6] =
261 {
262 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
263 ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
264 ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
265
266 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
267 sizeof (AML_RESOURCE_DMA),
268 0},
269
270 /* Flags: transfer preference, bus mastering, channel speed */
271
272 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
273 AML_OFFSET (Dma.Flags),
274 0},
275
276 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
277 AML_OFFSET (Dma.Flags),
278 2},
279
280 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
281 AML_OFFSET (Dma.Flags),
282 5},
283
284 /* DMA channel mask bits */
285
286 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET (Data.Dma.Channels[0]),
287 AML_OFFSET (Dma.DmaChannelMask),
288 ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
289 };
290
291
292 /*******************************************************************************
293 *
294 * AcpiRsConvertFixedDma
295 *
296 ******************************************************************************/
297
298 ACPI_RSCONVERT_INFO AcpiRsConvertFixedDma[4] =
299 {
300 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
301 ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA),
302 ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)},
303
304 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
305 sizeof (AML_RESOURCE_FIXED_DMA),
306 0},
307
308 /*
309 * These fields are contiguous in both the source and destination:
310 * RequestLines
311 * Channels
312 */
313 {ACPI_RSC_MOVE16, ACPI_RS_OFFSET (Data.FixedDma.RequestLines),
314 AML_OFFSET (FixedDma.RequestLines),
315 2},
316
317 {ACPI_RSC_MOVE8, ACPI_RS_OFFSET (Data.FixedDma.Width),
318 AML_OFFSET (FixedDma.Width),
319 1},
320 };