summaryrefslogtreecommitdiff
path: root/drivers/acpi/acpica/rsirq.c
blob: 07cfa70a475b6585173eb1f8eef409af5216872e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
/*******************************************************************************
 *
 * Module Name: rsirq - IRQ resource descriptors
 *
 ******************************************************************************/

/*
 * Copyright (C) 2000 - 2015, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#include <acpi/acpi.h>
#include "accommon.h"
#include "acresrc.h"

#define _COMPONENT          ACPI_RESOURCES
ACPI_MODULE_NAME("rsirq")

/*******************************************************************************
 *
 * acpi_rs_get_irq
 *
 ******************************************************************************/
struct acpi_rsconvert_info acpi_rs_get_irq[9] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
	 ACPI_RS_SIZE(struct acpi_resource_irq),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},

	/* Get the IRQ mask (bytes 1:2) */

	{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
	 AML_OFFSET(irq.irq_mask),
	 ACPI_RS_OFFSET(data.irq.interrupt_count)},

	/* Set default flags (others are zero) */

	{ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
	 ACPI_EDGE_SENSITIVE,
	 1},

	/* Get the descriptor length (2 or 3 for IRQ descriptor) */

	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
	 AML_OFFSET(irq.descriptor_type),
	 0},

	/* All done if no flag byte present in descriptor */

	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},

	/* Get flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
	 AML_OFFSET(irq.flags),
	 0},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
	 AML_OFFSET(irq.flags),
	 3},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
	 AML_OFFSET(irq.flags),
	 4},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
	 AML_OFFSET(irq.flags),
	 5}
};

/*******************************************************************************
 *
 * acpi_rs_set_irq
 *
 ******************************************************************************/

struct acpi_rsconvert_info acpi_rs_set_irq[14] = {
	/* Start with a default descriptor of length 3 */

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
	 sizeof(struct aml_resource_irq),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},

	/* Convert interrupt list to 16-bit IRQ bitmask */

	{ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
	 AML_OFFSET(irq.irq_mask),
	 ACPI_RS_OFFSET(data.irq.interrupt_count)},

	/* Set flags: Triggering[0], Polarity[3], Sharing[4], Wake[5] */

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
	 AML_OFFSET(irq.flags),
	 0},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
	 AML_OFFSET(irq.flags),
	 3},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
	 AML_OFFSET(irq.flags),
	 4},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.wake_capable),
	 AML_OFFSET(irq.flags),
	 5},

	/*
	 * All done if the output descriptor length is required to be 3
	 * (i.e., optimization to 2 bytes cannot be attempted)
	 */
	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.irq.descriptor_length),
	 3},

	/* Set length to 2 bytes (no flags byte) */

	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},

	/*
	 * All done if the output descriptor length is required to be 2.
	 *
	 * TBD: Perhaps we should check for error if input flags are not
	 * compatible with a 2-byte descriptor.
	 */
	{ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.irq.descriptor_length),
	 2},

	/* Reset length to 3 bytes (descriptor with flags byte) */

	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},

	/*
	 * Check if the flags byte is necessary. Not needed if the flags are:
	 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
	 */
	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.irq.triggering),
	 ACPI_EDGE_SENSITIVE},

	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.irq.polarity),
	 ACPI_ACTIVE_HIGH},

	{ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
	 ACPI_RS_OFFSET(data.irq.sharable),
	 ACPI_EXCLUSIVE},

	/* We can optimize to a 2-byte irq_no_flags() descriptor */

	{ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
};

/*******************************************************************************
 *
 * acpi_rs_convert_ext_irq
 *
 ******************************************************************************/

struct acpi_rsconvert_info acpi_rs_convert_ext_irq[10] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
	 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
	 sizeof(struct aml_resource_extended_irq),
	 0},

	/*
	 * Flags: Producer/Consumer[0], Triggering[1], Polarity[2],
	 *        Sharing[3], Wake[4]
	 */
	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
	 AML_OFFSET(extended_irq.flags),
	 0},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
	 AML_OFFSET(extended_irq.flags),
	 1},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
	 AML_OFFSET(extended_irq.flags),
	 2},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
	 AML_OFFSET(extended_irq.flags),
	 3},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.wake_capable),
	 AML_OFFSET(extended_irq.flags),
	 4},

	/* IRQ Table length (Byte4) */

	{ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
	 AML_OFFSET(extended_irq.interrupt_count),
	 sizeof(u32)},

	/* Copy every IRQ in the table, each is 32 bits */

	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
	 AML_OFFSET(extended_irq.interrupts[0]),
	 0},

	/* Optional resource_source (Index and String) */

	{ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
	 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
	 sizeof(struct aml_resource_extended_irq)}
};

/*******************************************************************************
 *
 * acpi_rs_convert_dma
 *
 ******************************************************************************/

struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
	 ACPI_RS_SIZE(struct acpi_resource_dma),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
	 sizeof(struct aml_resource_dma),
	 0},

	/* Flags: transfer preference, bus mastering, channel speed */

	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
	 AML_OFFSET(dma.flags),
	 0},

	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
	 AML_OFFSET(dma.flags),
	 2},

	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
	 AML_OFFSET(dma.flags),
	 5},

	/* DMA channel mask bits */

	{ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
	 AML_OFFSET(dma.dma_channel_mask),
	 ACPI_RS_OFFSET(data.dma.channel_count)}
};

/*******************************************************************************
 *
 * acpi_rs_convert_fixed_dma
 *
 ******************************************************************************/

struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[4] = {
	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_DMA,
	 ACPI_RS_SIZE(struct acpi_resource_fixed_dma),
	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_dma)},

	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_DMA,
	 sizeof(struct aml_resource_fixed_dma),
	 0},

	/*
	 * These fields are contiguous in both the source and destination:
	 * request_lines
	 * Channels
	 */
	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_dma.request_lines),
	 AML_OFFSET(fixed_dma.request_lines),
	 2},

	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_dma.width),
	 AML_OFFSET(fixed_dma.width),
	 1},
};