rsirq.c revision 245582 
1/*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2013, 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 <contrib/dev/acpica/include/acpi.h>
47#include <contrib/dev/acpica/include/accommon.h>
48#include <contrib/dev/acpica/include/acresrc.h>
49
50#define _COMPONENT          ACPI_RESOURCES
51        ACPI_MODULE_NAME    ("rsirq")
52
53
54/*******************************************************************************
55 *
56 * AcpiRsGetIrq
57 *
58 ******************************************************************************/
59
60ACPI_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
114ACPI_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
200ACPI_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
260ACPI_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
298ACPI_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};
321