rsirq.c revision 229989 
1/*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2012, 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[8] =
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] */
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
103
104/*******************************************************************************
105 *
106 * AcpiRsSetIrq
107 *
108 ******************************************************************************/
109
110ACPI_RSCONVERT_INFO     AcpiRsSetIrq[13] =
111{
112    /* Start with a default descriptor of length 3 */
113
114    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IRQ,
115                        sizeof (AML_RESOURCE_IRQ),
116                        ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
117
118    /* Convert interrupt list to 16-bit IRQ bitmask */
119
120    {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
121                        AML_OFFSET (Irq.IrqMask),
122                        ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
123
124    /* Set the flags byte */
125
126    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
127                        AML_OFFSET (Irq.Flags),
128                        0},
129
130    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
131                        AML_OFFSET (Irq.Flags),
132                        3},
133
134    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
135                        AML_OFFSET (Irq.Flags),
136                        4},
137
138    /*
139     * All done if the output descriptor length is required to be 3
140     * (i.e., optimization to 2 bytes cannot be attempted)
141     */
142    {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
143                        ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
144                        3},
145
146    /* Set length to 2 bytes (no flags byte) */
147
148    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
149
150    /*
151     * All done if the output descriptor length is required to be 2.
152     *
153     * TBD: Perhaps we should check for error if input flags are not
154     * compatible with a 2-byte descriptor.
155     */
156    {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
157                        ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
158                        2},
159
160    /* Reset length to 3 bytes (descriptor with flags byte) */
161
162    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ)},
163
164    /*
165     * Check if the flags byte is necessary. Not needed if the flags are:
166     * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
167     */
168    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
169                        ACPI_RS_OFFSET (Data.Irq.Triggering),
170                        ACPI_EDGE_SENSITIVE},
171
172    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
173                        ACPI_RS_OFFSET (Data.Irq.Polarity),
174                        ACPI_ACTIVE_HIGH},
175
176    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
177                        ACPI_RS_OFFSET (Data.Irq.Sharable),
178                        ACPI_EXCLUSIVE},
179
180    /* We can optimize to a 2-byte IrqNoFlags() descriptor */
181
182    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
183};
184
185
186/*******************************************************************************
187 *
188 * AcpiRsConvertExtIrq
189 *
190 ******************************************************************************/
191
192ACPI_RSCONVERT_INFO     AcpiRsConvertExtIrq[9] =
193{
194    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
195                        ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
196                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
197
198    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_EXTENDED_IRQ,
199                        sizeof (AML_RESOURCE_EXTENDED_IRQ),
200                        0},
201
202    /* Flag bits */
203
204    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
205                        AML_OFFSET (ExtendedIrq.Flags),
206                        0},
207
208    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
209                        AML_OFFSET (ExtendedIrq.Flags),
210                        1},
211
212    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
213                        AML_OFFSET (ExtendedIrq.Flags),
214                        2},
215
216    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable),
217                        AML_OFFSET (ExtendedIrq.Flags),
218                        3},
219
220    /* IRQ Table length (Byte4) */
221
222    {ACPI_RSC_COUNT,    ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
223                        AML_OFFSET (ExtendedIrq.InterruptCount),
224                        sizeof (UINT32)},
225
226    /* Copy every IRQ in the table, each is 32 bits */
227
228    {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
229                        AML_OFFSET (ExtendedIrq.Interrupts[0]),
230                        0},
231
232    /* Optional ResourceSource (Index and String) */
233
234    {ACPI_RSC_SOURCEX,  ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
235                        ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
236                        sizeof (AML_RESOURCE_EXTENDED_IRQ)}
237};
238
239
240/*******************************************************************************
241 *
242 * AcpiRsConvertDma
243 *
244 ******************************************************************************/
245
246ACPI_RSCONVERT_INFO     AcpiRsConvertDma[6] =
247{
248    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_DMA,
249                        ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
250                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
251
252    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_DMA,
253                        sizeof (AML_RESOURCE_DMA),
254                        0},
255
256    /* Flags: transfer preference, bus mastering, channel speed */
257
258    {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
259                        AML_OFFSET (Dma.Flags),
260                        0},
261
262    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
263                        AML_OFFSET (Dma.Flags),
264                        2},
265
266    {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
267                        AML_OFFSET (Dma.Flags),
268                        5},
269
270    /* DMA channel mask bits */
271
272    {ACPI_RSC_BITMASK,  ACPI_RS_OFFSET (Data.Dma.Channels[0]),
273                        AML_OFFSET (Dma.DmaChannelMask),
274                        ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
275};
276
277
278/*******************************************************************************
279 *
280 * AcpiRsConvertFixedDma
281 *
282 ******************************************************************************/
283
284ACPI_RSCONVERT_INFO     AcpiRsConvertFixedDma[4] =
285{
286    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_FIXED_DMA,
287                        ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA),
288                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)},
289
290    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_FIXED_DMA,
291                        sizeof (AML_RESOURCE_FIXED_DMA),
292                        0},
293
294    /*
295     * These fields are contiguous in both the source and destination:
296     * RequestLines
297     * Channels
298     */
299
300    {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.FixedDma.RequestLines),
301                        AML_OFFSET (FixedDma.RequestLines),
302                        2},
303
304    {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.FixedDma.Width),
305                        AML_OFFSET (FixedDma.Width),
306                        1},
307
308};
309