1/*******************************************************************************
2 *
3 * Module Name: rsirq - IRQ resource descriptors
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2007, R. Byron Moore
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 <acpi/acpi.h>
45#include <acpi/acresrc.h>
46
47#define _COMPONENT          ACPI_RESOURCES
48ACPI_MODULE_NAME("rsirq")
49
50/*******************************************************************************
51 *
52 * acpi_rs_get_irq
53 *
54 ******************************************************************************/
55struct acpi_rsconvert_info acpi_rs_get_irq[7] = {
56	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
57	 ACPI_RS_SIZE(struct acpi_resource_irq),
58	 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
59
60	/* Get the IRQ mask (bytes 1:2) */
61
62	{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
63	 AML_OFFSET(irq.irq_mask),
64	 ACPI_RS_OFFSET(data.irq.interrupt_count)},
65
66	/* Set default flags (others are zero) */
67
68	{ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
69	 ACPI_EDGE_SENSITIVE,
70	 1},
71
72	/* All done if no flag byte present in descriptor */
73
74	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
75
76	/* Get flags: Triggering[0], Polarity[3], Sharing[4] */
77
78	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
79	 AML_OFFSET(irq.flags),
80	 0},
81
82	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
83	 AML_OFFSET(irq.flags),
84	 3},
85
86	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
87	 AML_OFFSET(irq.flags),
88	 4}
89};
90
91/*******************************************************************************
92 *
93 * acpi_rs_set_irq
94 *
95 ******************************************************************************/
96
97struct acpi_rsconvert_info acpi_rs_set_irq[9] = {
98	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
99	 sizeof(struct aml_resource_irq),
100	 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
101
102	/* Convert interrupt list to 16-bit IRQ bitmask */
103
104	{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
105	 AML_OFFSET(irq.irq_mask),
106	 ACPI_RS_OFFSET(data.irq.interrupt_count)},
107
108	/* Set the flags byte by default */
109
110	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
111	 AML_OFFSET(irq.flags),
112	 0},
113
114	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
115	 AML_OFFSET(irq.flags),
116	 3},
117
118	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
119	 AML_OFFSET(irq.flags),
120	 4},
121	/*
122	 * Check if the flags byte is necessary. Not needed if the flags are:
123	 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
124	 */
125	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
126	 ACPI_RS_OFFSET(data.irq.triggering),
127	 ACPI_EDGE_SENSITIVE},
128
129	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
130	 ACPI_RS_OFFSET(data.irq.polarity),
131	 ACPI_ACTIVE_HIGH},
132
133	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
134	 ACPI_RS_OFFSET(data.irq.sharable),
135	 ACPI_EXCLUSIVE},
136
137	/* irq_no_flags() descriptor can be used */
138
139	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
140};
141
142/*******************************************************************************
143 *
144 * acpi_rs_convert_ext_irq
145 *
146 ******************************************************************************/
147
148struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
149	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
150	 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
151	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
152
153	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
154	 sizeof(struct aml_resource_extended_irq),
155	 0},
156
157	/* Flag bits */
158
159	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
160	 AML_OFFSET(extended_irq.flags),
161	 0},
162
163	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
164	 AML_OFFSET(extended_irq.flags),
165	 1},
166
167	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
168	 AML_OFFSET(extended_irq.flags),
169	 2},
170
171	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
172	 AML_OFFSET(extended_irq.flags),
173	 3},
174
175	/* IRQ Table length (Byte4) */
176
177	{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
178	 AML_OFFSET(extended_irq.interrupt_count),
179	 sizeof(u32)}
180	,
181
182	/* Copy every IRQ in the table, each is 32 bits */
183
184	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
185	 AML_OFFSET(extended_irq.interrupts[0]),
186	 0}
187	,
188
189	/* Optional resource_source (Index and String) */
190
191	{ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
192	 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
193	 sizeof(struct aml_resource_extended_irq)}
194};
195
196/*******************************************************************************
197 *
198 * acpi_rs_convert_dma
199 *
200 ******************************************************************************/
201
202struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
203	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
204	 ACPI_RS_SIZE(struct acpi_resource_dma),
205	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
206
207	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
208	 sizeof(struct aml_resource_dma),
209	 0},
210
211	/* Flags: transfer preference, bus mastering, channel speed */
212
213	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
214	 AML_OFFSET(dma.flags),
215	 0},
216
217	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
218	 AML_OFFSET(dma.flags),
219	 2},
220
221	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
222	 AML_OFFSET(dma.flags),
223	 5},
224
225	/* DMA channel mask bits */
226
227	{ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
228	 AML_OFFSET(dma.dma_channel_mask),
229	 ACPI_RS_OFFSET(data.dma.channel_count)}
230};
231