xref: /titanic_41/usr/src/uts/intel/io/acpica/resources/rsirq.c (revision 2c2d21e98a95cba5687ec6574c974a5c6c4a6adb)
1 /*******************************************************************************
2  *
3  * Module Name: rsirq - IRQ resource descriptors
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2011, 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[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 
110 ACPI_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 
192 ACPI_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 
246 ACPI_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