rsirq.c revision 281075 
1/*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2015, 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#include <contrib/dev/acpica/include/acpi.h>
45#include <contrib/dev/acpica/include/accommon.h>
46#include <contrib/dev/acpica/include/acresrc.h>
47
48#define _COMPONENT          ACPI_RESOURCES
49        ACPI_MODULE_NAME    ("rsirq")
50
51
52/*******************************************************************************
53 *
54 * AcpiRsGetIrq
55 *
56 ******************************************************************************/
57
58ACPI_RSCONVERT_INFO     AcpiRsGetIrq[9] =
59{
60    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_IRQ,
61                        ACPI_RS_SIZE (ACPI_RESOURCE_IRQ),
62                        ACPI_RSC_TABLE_SIZE (AcpiRsGetIrq)},
63
64    /* Get the IRQ mask (bytes 1:2) */
65
66    {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
67                        AML_OFFSET (Irq.IrqMask),
68                        ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
69
70    /* Set default flags (others are zero) */
71
72    {ACPI_RSC_SET8,     ACPI_RS_OFFSET (Data.Irq.Triggering),
73                        ACPI_EDGE_SENSITIVE,
74                        1},
75
76    /* Get the descriptor length (2 or 3 for IRQ descriptor) */
77
78    {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Irq.DescriptorLength),
79                        AML_OFFSET (Irq.DescriptorType),
80                        0},
81
82    /* All done if no flag byte present in descriptor */
83
84    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
85
86    /* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
87
88    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
89                        AML_OFFSET (Irq.Flags),
90                        0},
91
92    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
93                        AML_OFFSET (Irq.Flags),
94                        3},
95
96    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
97                        AML_OFFSET (Irq.Flags),
98                        4},
99
100    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
101                        AML_OFFSET (Irq.Flags),
102                        5}
103};
104
105
106/*******************************************************************************
107 *
108 * AcpiRsSetIrq
109 *
110 ******************************************************************************/
111
112ACPI_RSCONVERT_INFO     AcpiRsSetIrq[14] =
113{
114    /* Start with a default descriptor of length 3 */
115
116    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_IRQ,
117                        sizeof (AML_RESOURCE_IRQ),
118                        ACPI_RSC_TABLE_SIZE (AcpiRsSetIrq)},
119
120    /* Convert interrupt list to 16-bit IRQ bitmask */
121
122    {ACPI_RSC_BITMASK16,ACPI_RS_OFFSET (Data.Irq.Interrupts[0]),
123                        AML_OFFSET (Irq.IrqMask),
124                        ACPI_RS_OFFSET (Data.Irq.InterruptCount)},
125
126    /* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */
127
128    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Triggering),
129                        AML_OFFSET (Irq.Flags),
130                        0},
131
132    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Polarity),
133                        AML_OFFSET (Irq.Flags),
134                        3},
135
136    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.Sharable),
137                        AML_OFFSET (Irq.Flags),
138                        4},
139
140    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Irq.WakeCapable),
141                        AML_OFFSET (Irq.Flags),
142                        5},
143
144    /*
145     * All done if the output descriptor length is required to be 3
146     * (i.e., optimization to 2 bytes cannot be attempted)
147     */
148    {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
149                        ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
150                        3},
151
152    /* Set length to 2 bytes (no flags byte) */
153
154    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)},
155
156    /*
157     * All done if the output descriptor length is required to be 2.
158     *
159     * TBD: Perhaps we should check for error if input flags are not
160     * compatible with a 2-byte descriptor.
161     */
162    {ACPI_RSC_EXIT_EQ,  ACPI_RSC_COMPARE_VALUE,
163                        ACPI_RS_OFFSET(Data.Irq.DescriptorLength),
164                        2},
165
166    /* Reset length to 3 bytes (descriptor with flags byte) */
167
168    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ)},
169
170    /*
171     * Check if the flags byte is necessary. Not needed if the flags are:
172     * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
173     */
174    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
175                        ACPI_RS_OFFSET (Data.Irq.Triggering),
176                        ACPI_EDGE_SENSITIVE},
177
178    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
179                        ACPI_RS_OFFSET (Data.Irq.Polarity),
180                        ACPI_ACTIVE_HIGH},
181
182    {ACPI_RSC_EXIT_NE,  ACPI_RSC_COMPARE_VALUE,
183                        ACPI_RS_OFFSET (Data.Irq.Sharable),
184                        ACPI_EXCLUSIVE},
185
186    /* We can optimize to a 2-byte IrqNoFlags() descriptor */
187
188    {ACPI_RSC_LENGTH,   0, 0, sizeof (AML_RESOURCE_IRQ_NOFLAGS)}
189};
190
191
192/*******************************************************************************
193 *
194 * AcpiRsConvertExtIrq
195 *
196 ******************************************************************************/
197
198ACPI_RSCONVERT_INFO     AcpiRsConvertExtIrq[10] =
199{
200    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
201                        ACPI_RS_SIZE (ACPI_RESOURCE_EXTENDED_IRQ),
202                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertExtIrq)},
203
204    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_EXTENDED_IRQ,
205                        sizeof (AML_RESOURCE_EXTENDED_IRQ),
206                        0},
207
208    /*
209     * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
210     *        Sharing[3], Wake[4]
211     */
212    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.ProducerConsumer),
213                        AML_OFFSET (ExtendedIrq.Flags),
214                        0},
215
216    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Triggering),
217                        AML_OFFSET (ExtendedIrq.Flags),
218                        1},
219
220    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Polarity),
221                        AML_OFFSET (ExtendedIrq.Flags),
222                        2},
223
224    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.Sharable),
225                        AML_OFFSET (ExtendedIrq.Flags),
226                        3},
227
228    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.ExtendedIrq.WakeCapable),
229                        AML_OFFSET (ExtendedIrq.Flags),
230                        4},
231
232    /* IRQ Table length (Byte4) */
233
234    {ACPI_RSC_COUNT,    ACPI_RS_OFFSET (Data.ExtendedIrq.InterruptCount),
235                        AML_OFFSET (ExtendedIrq.InterruptCount),
236                        sizeof (UINT32)},
237
238    /* Copy every IRQ in the table, each is 32 bits */
239
240    {ACPI_RSC_MOVE32,   ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
241                        AML_OFFSET (ExtendedIrq.Interrupts[0]),
242                        0},
243
244    /* Optional ResourceSource (Index and String) */
245
246    {ACPI_RSC_SOURCEX,  ACPI_RS_OFFSET (Data.ExtendedIrq.ResourceSource),
247                        ACPI_RS_OFFSET (Data.ExtendedIrq.Interrupts[0]),
248                        sizeof (AML_RESOURCE_EXTENDED_IRQ)}
249};
250
251
252/*******************************************************************************
253 *
254 * AcpiRsConvertDma
255 *
256 ******************************************************************************/
257
258ACPI_RSCONVERT_INFO     AcpiRsConvertDma[6] =
259{
260    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_DMA,
261                        ACPI_RS_SIZE (ACPI_RESOURCE_DMA),
262                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertDma)},
263
264    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_DMA,
265                        sizeof (AML_RESOURCE_DMA),
266                        0},
267
268    /* Flags: transfer preference, bus mastering, channel speed */
269
270    {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Transfer),
271                        AML_OFFSET (Dma.Flags),
272                        0},
273
274    {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET (Data.Dma.BusMaster),
275                        AML_OFFSET (Dma.Flags),
276                        2},
277
278    {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET (Data.Dma.Type),
279                        AML_OFFSET (Dma.Flags),
280                        5},
281
282    /* DMA channel mask bits */
283
284    {ACPI_RSC_BITMASK,  ACPI_RS_OFFSET (Data.Dma.Channels[0]),
285                        AML_OFFSET (Dma.DmaChannelMask),
286                        ACPI_RS_OFFSET (Data.Dma.ChannelCount)}
287};
288
289
290/*******************************************************************************
291 *
292 * AcpiRsConvertFixedDma
293 *
294 ******************************************************************************/
295
296ACPI_RSCONVERT_INFO     AcpiRsConvertFixedDma[4] =
297{
298    {ACPI_RSC_INITGET,  ACPI_RESOURCE_TYPE_FIXED_DMA,
299                        ACPI_RS_SIZE (ACPI_RESOURCE_FIXED_DMA),
300                        ACPI_RSC_TABLE_SIZE (AcpiRsConvertFixedDma)},
301
302    {ACPI_RSC_INITSET,  ACPI_RESOURCE_NAME_FIXED_DMA,
303                        sizeof (AML_RESOURCE_FIXED_DMA),
304                        0},
305
306    /*
307     * These fields are contiguous in both the source and destination:
308     * RequestLines
309     * Channels
310     */
311    {ACPI_RSC_MOVE16,   ACPI_RS_OFFSET (Data.FixedDma.RequestLines),
312                        AML_OFFSET (FixedDma.RequestLines),
313                        2},
314
315    {ACPI_RSC_MOVE8,    ACPI_RS_OFFSET (Data.FixedDma.Width),
316                        AML_OFFSET (FixedDma.Width),
317                        1},
318};
319