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