1/*******************************************************************************
2 *
3 * Module Name: rsio - IO and DMA resource descriptors
4 * $Revision: 20 $
5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************/
116
117#define __RSIO_C__
118
119#include "acpi.h"
120#include "acresrc.h"
121
122#define _COMPONENT ACPI_RESOURCES
123 ACPI_MODULE_NAME ("rsio")
124
125
126/*******************************************************************************
127 *
128 * FUNCTION: AcpiRsIoResource
129 *
130 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
131 * stream
132 * BytesConsumed - Pointer to where the number of bytes
133 * consumed the ByteStreamBuffer is
134 * returned
135 * OutputBuffer - Pointer to the return data buffer
136 * StructureSize - Pointer to where the number of bytes
137 * in the return data struct is returned
138 *
139 * RETURN: Status
140 *
141 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
142 * structure pointed to by the OutputBuffer. Return the
143 * number of bytes consumed from the byte stream.
144 *
145 ******************************************************************************/
146
147ACPI_STATUS
148AcpiRsIoResource (
149 UINT8 *ByteStreamBuffer,
150 ACPI_SIZE *BytesConsumed,
151 UINT8 **OutputBuffer,
152 ACPI_SIZE *StructureSize)
153{
154 UINT8 *Buffer = ByteStreamBuffer;
155 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
156 UINT16 Temp16 = 0;
157 UINT8 Temp8 = 0;
158 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IO);
159
160
161 ACPI_FUNCTION_TRACE ("RsIoResource");
162
163
164 /*
165 * The number of bytes consumed are Constant
166 */
167 *BytesConsumed = 8;
168
169 OutputStruct->Id = ACPI_RSTYPE_IO;
170
171 /*
172 * Check Decode
173 */
174 Buffer += 1;
175 Temp8 = *Buffer;
176
177 OutputStruct->Data.Io.IoDecode = Temp8 & 0x01;
178
179 /*
180 * Check MinBase Address
181 */
182 Buffer += 1;
183 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
184
185 OutputStruct->Data.Io.MinBaseAddress = Temp16;
186
187 /*
188 * Check MaxBase Address
189 */
190 Buffer += 2;
191 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
192
193 OutputStruct->Data.Io.MaxBaseAddress = Temp16;
194
195 /*
196 * Check Base alignment
197 */
198 Buffer += 2;
199 Temp8 = *Buffer;
200
201 OutputStruct->Data.Io.Alignment = Temp8;
202
203 /*
204 * Check RangeLength
205 */
206 Buffer += 1;
207 Temp8 = *Buffer;
208
209 OutputStruct->Data.Io.RangeLength = Temp8;
210
211 /*
212 * Set the Length parameter
213 */
214 OutputStruct->Length = (UINT32) StructSize;
215
216 /*
217 * Return the final size of the structure
218 */
219 *StructureSize = StructSize;
220 return_ACPI_STATUS (AE_OK);
221}
222
223
224/*******************************************************************************
225 *
226 * FUNCTION: AcpiRsFixedIoResource
227 *
228 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
229 * stream
230 * BytesConsumed - Pointer to where the number of bytes
231 * consumed the ByteStreamBuffer is
232 * returned
233 * OutputBuffer - Pointer to the return data buffer
234 * StructureSize - Pointer to where the number of bytes
235 * in the return data struct is returned
236 *
237 * RETURN: Status
238 *
239 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
240 * structure pointed to by the OutputBuffer. Return the
241 * number of bytes consumed from the byte stream.
242 *
243 ******************************************************************************/
244
245ACPI_STATUS
246AcpiRsFixedIoResource (
247 UINT8 *ByteStreamBuffer,
248 ACPI_SIZE *BytesConsumed,
249 UINT8 **OutputBuffer,
250 ACPI_SIZE *StructureSize)
251{
252 UINT8 *Buffer = ByteStreamBuffer;
253 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
254 UINT16 Temp16 = 0;
255 UINT8 Temp8 = 0;
256 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_FIXED_IO);
257
258
259 ACPI_FUNCTION_TRACE ("RsFixedIoResource");
260
261
262 /*
263 * The number of bytes consumed are Constant
264 */
265 *BytesConsumed = 4;
266
267 OutputStruct->Id = ACPI_RSTYPE_FIXED_IO;
268
269 /*
270 * Check Range Base Address
271 */
272 Buffer += 1;
273 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
274
275 OutputStruct->Data.FixedIo.BaseAddress = Temp16;
276
277 /*
278 * Check RangeLength
279 */
280 Buffer += 2;
281 Temp8 = *Buffer;
282
283 OutputStruct->Data.FixedIo.RangeLength = Temp8;
284
285 /*
286 * Set the Length parameter
287 */
288 OutputStruct->Length = (UINT32) StructSize;
289
290 /*
291 * Return the final size of the structure
292 */
293 *StructureSize = StructSize;
294 return_ACPI_STATUS (AE_OK);
295}
296
297
298/*******************************************************************************
299 *
300 * FUNCTION: AcpiRsIoStream
301 *
302 * PARAMETERS: LinkedList - Pointer to the resource linked list
303 * OutputBuffer - Pointer to the user's return buffer
304 * BytesConsumed - Pointer to where the number of bytes
305 * used in the OutputBuffer is returned
306 *
307 * RETURN: Status
308 *
309 * DESCRIPTION: Take the linked list resource structure and fills in the
310 * the appropriate bytes in a byte stream
311 *
312 ******************************************************************************/
313
314ACPI_STATUS
315AcpiRsIoStream (
316 ACPI_RESOURCE *LinkedList,
317 UINT8 **OutputBuffer,
318 ACPI_SIZE *BytesConsumed)
319{
320 UINT8 *Buffer = *OutputBuffer;
321 UINT16 Temp16 = 0;
322 UINT8 Temp8 = 0;
323
324
325 ACPI_FUNCTION_TRACE ("RsIoStream");
326
327
328 /*
329 * The descriptor field is static
330 */
331 *Buffer = 0x47;
332 Buffer += 1;
333
334 /*
335 * Io Information Byte
336 */
337 Temp8 = (UINT8) (LinkedList->Data.Io.IoDecode & 0x01);
338
339 *Buffer = Temp8;
340 Buffer += 1;
341
342 /*
343 * Set the Range minimum base address
344 */
345 Temp16 = (UINT16) LinkedList->Data.Io.MinBaseAddress;
346
347 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
348 Buffer += 2;
349
350 /*
351 * Set the Range maximum base address
352 */
353 Temp16 = (UINT16) LinkedList->Data.Io.MaxBaseAddress;
354
355 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
356 Buffer += 2;
357
358 /*
359 * Set the base alignment
360 */
361 Temp8 = (UINT8) LinkedList->Data.Io.Alignment;
362
363 *Buffer = Temp8;
364 Buffer += 1;
365
366 /*
367 * Set the range length
368 */
369 Temp8 = (UINT8) LinkedList->Data.Io.RangeLength;
370
371 *Buffer = Temp8;
372 Buffer += 1;
373
374 /*
375 * Return the number of bytes consumed in this operation
376 */
377 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
378 return_ACPI_STATUS (AE_OK);
379}
380
381
382/*******************************************************************************
383 *
384 * FUNCTION: AcpiRsFixedIoStream
385 *
386 * PARAMETERS: LinkedList - Pointer to the resource linked list
387 * OutputBuffer - Pointer to the user's return buffer
388 * BytesConsumed - Pointer to where the number of bytes
389 * used in the OutputBuffer is returned
390 *
391 * RETURN: Status
392 *
393 * DESCRIPTION: Take the linked list resource structure and fills in the
394 * the appropriate bytes in a byte stream
395 *
396 ******************************************************************************/
397
398ACPI_STATUS
399AcpiRsFixedIoStream (
400 ACPI_RESOURCE *LinkedList,
401 UINT8 **OutputBuffer,
402 ACPI_SIZE *BytesConsumed)
403{
404 UINT8 *Buffer = *OutputBuffer;
405 UINT16 Temp16 = 0;
406 UINT8 Temp8 = 0;
407
408
409 ACPI_FUNCTION_TRACE ("RsFixedIoStream");
410
411
412 /*
413 * The descriptor field is static
414 */
415 *Buffer = 0x4B;
416
417 Buffer += 1;
418
419 /*
420 * Set the Range base address
421 */
422 Temp16 = (UINT16) LinkedList->Data.FixedIo.BaseAddress;
423
424 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
425 Buffer += 2;
426
427 /*
428 * Set the range length
429 */
430 Temp8 = (UINT8) LinkedList->Data.FixedIo.RangeLength;
431
432 *Buffer = Temp8;
433 Buffer += 1;
434
435 /*
436 * Return the number of bytes consumed in this operation
437 */
438 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
439 return_ACPI_STATUS (AE_OK);
440}
441
442
443/*******************************************************************************
444 *
445 * FUNCTION: AcpiRsDmaResource
446 *
447 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
448 * stream
449 * BytesConsumed - Pointer to where the number of bytes
450 * consumed the ByteStreamBuffer is
451 * returned
452 * OutputBuffer - Pointer to the return data buffer
453 * StructureSize - Pointer to where the number of bytes
454 * in the return data struct is returned
455 *
456 * RETURN: Status
457 *
458 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
459 * structure pointed to by the OutputBuffer. Return the
460 * number of bytes consumed from the byte stream.
461 *
462 ******************************************************************************/
463
464ACPI_STATUS
465AcpiRsDmaResource (
466 UINT8 *ByteStreamBuffer,
467 ACPI_SIZE *BytesConsumed,
468 UINT8 **OutputBuffer,
469 ACPI_SIZE *StructureSize)
470{
471 UINT8 *Buffer = ByteStreamBuffer;
472 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
473 UINT8 Temp8 = 0;
474 UINT8 Index;
475 UINT8 i;
476 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_DMA);
477
478
479 ACPI_FUNCTION_TRACE ("RsDmaResource");
480
481
482 /*
483 * The number of bytes consumed are Constant
484 */
485 *BytesConsumed = 3;
486 OutputStruct->Id = ACPI_RSTYPE_DMA;
487
488 /*
489 * Point to the 8-bits of Byte 1
490 */
491 Buffer += 1;
492 Temp8 = *Buffer;
493
494 /* Decode the IRQ bits */
495
496 for (i = 0, Index = 0; Index < 8; Index++)
497 {
498 if ((Temp8 >> Index) & 0x01)
499 {
500 OutputStruct->Data.Dma.Channels[i] = Index;
501 i++;
502 }
503 }
504 if (i == 0)
505 {
506 /* Zero channels is invalid! */
507
508 return_ACPI_STATUS (AE_BAD_DATA);
509 }
510 OutputStruct->Data.Dma.NumberOfChannels = i;
511
512
513 /*
514 * Calculate the structure size based upon the number of interrupts
515 */
516 StructSize += ((ACPI_SIZE) OutputStruct->Data.Dma.NumberOfChannels - 1) * 4;
517
518 /*
519 * Point to Byte 2
520 */
521 Buffer += 1;
522 Temp8 = *Buffer;
523
524 /*
525 * Check for transfer preference (Bits[1:0])
526 */
527 OutputStruct->Data.Dma.Transfer = Temp8 & 0x03;
528
529 if (0x03 == OutputStruct->Data.Dma.Transfer)
530 {
531 return_ACPI_STATUS (AE_BAD_DATA);
532 }
533
534 /*
535 * Get bus master preference (Bit[2])
536 */
537 OutputStruct->Data.Dma.BusMaster = (Temp8 >> 2) & 0x01;
538
539 /*
540 * Get channel speed support (Bits[6:5])
541 */
542 OutputStruct->Data.Dma.Type = (Temp8 >> 5) & 0x03;
543
544 /*
545 * Set the Length parameter
546 */
547 OutputStruct->Length = (UINT32) StructSize;
548
549 /*
550 * Return the final size of the structure
551 */
552 *StructureSize = StructSize;
553 return_ACPI_STATUS (AE_OK);
554}
555
556
557/*******************************************************************************
558 *
559 * FUNCTION: AcpiRsDmaStream
560 *
561 * PARAMETERS: LinkedList - Pointer to the resource linked list
562 * OutputBuffer - Pointer to the user's return buffer
563 * BytesConsumed - Pointer to where the number of bytes
564 * used in the OutputBuffer is returned
565 *
566 * RETURN: Status
567 *
568 * DESCRIPTION: Take the linked list resource structure and fills in the
569 * the appropriate bytes in a byte stream
570 *
571 ******************************************************************************/
572
573ACPI_STATUS
574AcpiRsDmaStream (
575 ACPI_RESOURCE *LinkedList,
576 UINT8 **OutputBuffer,
577 ACPI_SIZE *BytesConsumed)
578{
579 UINT8 *Buffer = *OutputBuffer;
580 UINT16 Temp16 = 0;
581 UINT8 Temp8 = 0;
582 UINT8 Index;
583
584
585 ACPI_FUNCTION_TRACE ("RsDmaStream");
586
587
588 /*
589 * The descriptor field is static
590 */
591 *Buffer = 0x2A;
592 Buffer += 1;
593 Temp8 = 0;
594
595 /*
596 * Loop through all of the Channels and set the mask bits
597 */
598 for (Index = 0;
599 Index < LinkedList->Data.Dma.NumberOfChannels;
600 Index++)
601 {
602 Temp16 = (UINT16) LinkedList->Data.Dma.Channels[Index];
603 Temp8 |= 0x1 << Temp16;
604 }
605
606 *Buffer = Temp8;
607 Buffer += 1;
608
609 /*
610 * Set the DMA Info
611 */
612 Temp8 = (UINT8) ((LinkedList->Data.Dma.Type & 0x03) << 5);
613 Temp8 |= ((LinkedList->Data.Dma.BusMaster & 0x01) << 2);
614 Temp8 |= (LinkedList->Data.Dma.Transfer & 0x03);
615
616 *Buffer = Temp8;
617 Buffer += 1;
618
619 /*
620 * Return the number of bytes consumed in this operation
621 */
622 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
623 return_ACPI_STATUS (AE_OK);
624}
625
2 *
3 * Module Name: rsio - IO and DMA resource descriptors
4 * $Revision: 20 $
5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************/
116
117#define __RSIO_C__
118
119#include "acpi.h"
120#include "acresrc.h"
121
122#define _COMPONENT ACPI_RESOURCES
123 ACPI_MODULE_NAME ("rsio")
124
125
126/*******************************************************************************
127 *
128 * FUNCTION: AcpiRsIoResource
129 *
130 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
131 * stream
132 * BytesConsumed - Pointer to where the number of bytes
133 * consumed the ByteStreamBuffer is
134 * returned
135 * OutputBuffer - Pointer to the return data buffer
136 * StructureSize - Pointer to where the number of bytes
137 * in the return data struct is returned
138 *
139 * RETURN: Status
140 *
141 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
142 * structure pointed to by the OutputBuffer. Return the
143 * number of bytes consumed from the byte stream.
144 *
145 ******************************************************************************/
146
147ACPI_STATUS
148AcpiRsIoResource (
149 UINT8 *ByteStreamBuffer,
150 ACPI_SIZE *BytesConsumed,
151 UINT8 **OutputBuffer,
152 ACPI_SIZE *StructureSize)
153{
154 UINT8 *Buffer = ByteStreamBuffer;
155 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
156 UINT16 Temp16 = 0;
157 UINT8 Temp8 = 0;
158 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IO);
159
160
161 ACPI_FUNCTION_TRACE ("RsIoResource");
162
163
164 /*
165 * The number of bytes consumed are Constant
166 */
167 *BytesConsumed = 8;
168
169 OutputStruct->Id = ACPI_RSTYPE_IO;
170
171 /*
172 * Check Decode
173 */
174 Buffer += 1;
175 Temp8 = *Buffer;
176
177 OutputStruct->Data.Io.IoDecode = Temp8 & 0x01;
178
179 /*
180 * Check MinBase Address
181 */
182 Buffer += 1;
183 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
184
185 OutputStruct->Data.Io.MinBaseAddress = Temp16;
186
187 /*
188 * Check MaxBase Address
189 */
190 Buffer += 2;
191 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
192
193 OutputStruct->Data.Io.MaxBaseAddress = Temp16;
194
195 /*
196 * Check Base alignment
197 */
198 Buffer += 2;
199 Temp8 = *Buffer;
200
201 OutputStruct->Data.Io.Alignment = Temp8;
202
203 /*
204 * Check RangeLength
205 */
206 Buffer += 1;
207 Temp8 = *Buffer;
208
209 OutputStruct->Data.Io.RangeLength = Temp8;
210
211 /*
212 * Set the Length parameter
213 */
214 OutputStruct->Length = (UINT32) StructSize;
215
216 /*
217 * Return the final size of the structure
218 */
219 *StructureSize = StructSize;
220 return_ACPI_STATUS (AE_OK);
221}
222
223
224/*******************************************************************************
225 *
226 * FUNCTION: AcpiRsFixedIoResource
227 *
228 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
229 * stream
230 * BytesConsumed - Pointer to where the number of bytes
231 * consumed the ByteStreamBuffer is
232 * returned
233 * OutputBuffer - Pointer to the return data buffer
234 * StructureSize - Pointer to where the number of bytes
235 * in the return data struct is returned
236 *
237 * RETURN: Status
238 *
239 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
240 * structure pointed to by the OutputBuffer. Return the
241 * number of bytes consumed from the byte stream.
242 *
243 ******************************************************************************/
244
245ACPI_STATUS
246AcpiRsFixedIoResource (
247 UINT8 *ByteStreamBuffer,
248 ACPI_SIZE *BytesConsumed,
249 UINT8 **OutputBuffer,
250 ACPI_SIZE *StructureSize)
251{
252 UINT8 *Buffer = ByteStreamBuffer;
253 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
254 UINT16 Temp16 = 0;
255 UINT8 Temp8 = 0;
256 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_FIXED_IO);
257
258
259 ACPI_FUNCTION_TRACE ("RsFixedIoResource");
260
261
262 /*
263 * The number of bytes consumed are Constant
264 */
265 *BytesConsumed = 4;
266
267 OutputStruct->Id = ACPI_RSTYPE_FIXED_IO;
268
269 /*
270 * Check Range Base Address
271 */
272 Buffer += 1;
273 ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer);
274
275 OutputStruct->Data.FixedIo.BaseAddress = Temp16;
276
277 /*
278 * Check RangeLength
279 */
280 Buffer += 2;
281 Temp8 = *Buffer;
282
283 OutputStruct->Data.FixedIo.RangeLength = Temp8;
284
285 /*
286 * Set the Length parameter
287 */
288 OutputStruct->Length = (UINT32) StructSize;
289
290 /*
291 * Return the final size of the structure
292 */
293 *StructureSize = StructSize;
294 return_ACPI_STATUS (AE_OK);
295}
296
297
298/*******************************************************************************
299 *
300 * FUNCTION: AcpiRsIoStream
301 *
302 * PARAMETERS: LinkedList - Pointer to the resource linked list
303 * OutputBuffer - Pointer to the user's return buffer
304 * BytesConsumed - Pointer to where the number of bytes
305 * used in the OutputBuffer is returned
306 *
307 * RETURN: Status
308 *
309 * DESCRIPTION: Take the linked list resource structure and fills in the
310 * the appropriate bytes in a byte stream
311 *
312 ******************************************************************************/
313
314ACPI_STATUS
315AcpiRsIoStream (
316 ACPI_RESOURCE *LinkedList,
317 UINT8 **OutputBuffer,
318 ACPI_SIZE *BytesConsumed)
319{
320 UINT8 *Buffer = *OutputBuffer;
321 UINT16 Temp16 = 0;
322 UINT8 Temp8 = 0;
323
324
325 ACPI_FUNCTION_TRACE ("RsIoStream");
326
327
328 /*
329 * The descriptor field is static
330 */
331 *Buffer = 0x47;
332 Buffer += 1;
333
334 /*
335 * Io Information Byte
336 */
337 Temp8 = (UINT8) (LinkedList->Data.Io.IoDecode & 0x01);
338
339 *Buffer = Temp8;
340 Buffer += 1;
341
342 /*
343 * Set the Range minimum base address
344 */
345 Temp16 = (UINT16) LinkedList->Data.Io.MinBaseAddress;
346
347 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
348 Buffer += 2;
349
350 /*
351 * Set the Range maximum base address
352 */
353 Temp16 = (UINT16) LinkedList->Data.Io.MaxBaseAddress;
354
355 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
356 Buffer += 2;
357
358 /*
359 * Set the base alignment
360 */
361 Temp8 = (UINT8) LinkedList->Data.Io.Alignment;
362
363 *Buffer = Temp8;
364 Buffer += 1;
365
366 /*
367 * Set the range length
368 */
369 Temp8 = (UINT8) LinkedList->Data.Io.RangeLength;
370
371 *Buffer = Temp8;
372 Buffer += 1;
373
374 /*
375 * Return the number of bytes consumed in this operation
376 */
377 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
378 return_ACPI_STATUS (AE_OK);
379}
380
381
382/*******************************************************************************
383 *
384 * FUNCTION: AcpiRsFixedIoStream
385 *
386 * PARAMETERS: LinkedList - Pointer to the resource linked list
387 * OutputBuffer - Pointer to the user's return buffer
388 * BytesConsumed - Pointer to where the number of bytes
389 * used in the OutputBuffer is returned
390 *
391 * RETURN: Status
392 *
393 * DESCRIPTION: Take the linked list resource structure and fills in the
394 * the appropriate bytes in a byte stream
395 *
396 ******************************************************************************/
397
398ACPI_STATUS
399AcpiRsFixedIoStream (
400 ACPI_RESOURCE *LinkedList,
401 UINT8 **OutputBuffer,
402 ACPI_SIZE *BytesConsumed)
403{
404 UINT8 *Buffer = *OutputBuffer;
405 UINT16 Temp16 = 0;
406 UINT8 Temp8 = 0;
407
408
409 ACPI_FUNCTION_TRACE ("RsFixedIoStream");
410
411
412 /*
413 * The descriptor field is static
414 */
415 *Buffer = 0x4B;
416
417 Buffer += 1;
418
419 /*
420 * Set the Range base address
421 */
422 Temp16 = (UINT16) LinkedList->Data.FixedIo.BaseAddress;
423
424 ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16);
425 Buffer += 2;
426
427 /*
428 * Set the range length
429 */
430 Temp8 = (UINT8) LinkedList->Data.FixedIo.RangeLength;
431
432 *Buffer = Temp8;
433 Buffer += 1;
434
435 /*
436 * Return the number of bytes consumed in this operation
437 */
438 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
439 return_ACPI_STATUS (AE_OK);
440}
441
442
443/*******************************************************************************
444 *
445 * FUNCTION: AcpiRsDmaResource
446 *
447 * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte
448 * stream
449 * BytesConsumed - Pointer to where the number of bytes
450 * consumed the ByteStreamBuffer is
451 * returned
452 * OutputBuffer - Pointer to the return data buffer
453 * StructureSize - Pointer to where the number of bytes
454 * in the return data struct is returned
455 *
456 * RETURN: Status
457 *
458 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
459 * structure pointed to by the OutputBuffer. Return the
460 * number of bytes consumed from the byte stream.
461 *
462 ******************************************************************************/
463
464ACPI_STATUS
465AcpiRsDmaResource (
466 UINT8 *ByteStreamBuffer,
467 ACPI_SIZE *BytesConsumed,
468 UINT8 **OutputBuffer,
469 ACPI_SIZE *StructureSize)
470{
471 UINT8 *Buffer = ByteStreamBuffer;
472 ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer;
473 UINT8 Temp8 = 0;
474 UINT8 Index;
475 UINT8 i;
476 ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_DMA);
477
478
479 ACPI_FUNCTION_TRACE ("RsDmaResource");
480
481
482 /*
483 * The number of bytes consumed are Constant
484 */
485 *BytesConsumed = 3;
486 OutputStruct->Id = ACPI_RSTYPE_DMA;
487
488 /*
489 * Point to the 8-bits of Byte 1
490 */
491 Buffer += 1;
492 Temp8 = *Buffer;
493
494 /* Decode the IRQ bits */
495
496 for (i = 0, Index = 0; Index < 8; Index++)
497 {
498 if ((Temp8 >> Index) & 0x01)
499 {
500 OutputStruct->Data.Dma.Channels[i] = Index;
501 i++;
502 }
503 }
504 if (i == 0)
505 {
506 /* Zero channels is invalid! */
507
508 return_ACPI_STATUS (AE_BAD_DATA);
509 }
510 OutputStruct->Data.Dma.NumberOfChannels = i;
511
512
513 /*
514 * Calculate the structure size based upon the number of interrupts
515 */
516 StructSize += ((ACPI_SIZE) OutputStruct->Data.Dma.NumberOfChannels - 1) * 4;
517
518 /*
519 * Point to Byte 2
520 */
521 Buffer += 1;
522 Temp8 = *Buffer;
523
524 /*
525 * Check for transfer preference (Bits[1:0])
526 */
527 OutputStruct->Data.Dma.Transfer = Temp8 & 0x03;
528
529 if (0x03 == OutputStruct->Data.Dma.Transfer)
530 {
531 return_ACPI_STATUS (AE_BAD_DATA);
532 }
533
534 /*
535 * Get bus master preference (Bit[2])
536 */
537 OutputStruct->Data.Dma.BusMaster = (Temp8 >> 2) & 0x01;
538
539 /*
540 * Get channel speed support (Bits[6:5])
541 */
542 OutputStruct->Data.Dma.Type = (Temp8 >> 5) & 0x03;
543
544 /*
545 * Set the Length parameter
546 */
547 OutputStruct->Length = (UINT32) StructSize;
548
549 /*
550 * Return the final size of the structure
551 */
552 *StructureSize = StructSize;
553 return_ACPI_STATUS (AE_OK);
554}
555
556
557/*******************************************************************************
558 *
559 * FUNCTION: AcpiRsDmaStream
560 *
561 * PARAMETERS: LinkedList - Pointer to the resource linked list
562 * OutputBuffer - Pointer to the user's return buffer
563 * BytesConsumed - Pointer to where the number of bytes
564 * used in the OutputBuffer is returned
565 *
566 * RETURN: Status
567 *
568 * DESCRIPTION: Take the linked list resource structure and fills in the
569 * the appropriate bytes in a byte stream
570 *
571 ******************************************************************************/
572
573ACPI_STATUS
574AcpiRsDmaStream (
575 ACPI_RESOURCE *LinkedList,
576 UINT8 **OutputBuffer,
577 ACPI_SIZE *BytesConsumed)
578{
579 UINT8 *Buffer = *OutputBuffer;
580 UINT16 Temp16 = 0;
581 UINT8 Temp8 = 0;
582 UINT8 Index;
583
584
585 ACPI_FUNCTION_TRACE ("RsDmaStream");
586
587
588 /*
589 * The descriptor field is static
590 */
591 *Buffer = 0x2A;
592 Buffer += 1;
593 Temp8 = 0;
594
595 /*
596 * Loop through all of the Channels and set the mask bits
597 */
598 for (Index = 0;
599 Index < LinkedList->Data.Dma.NumberOfChannels;
600 Index++)
601 {
602 Temp16 = (UINT16) LinkedList->Data.Dma.Channels[Index];
603 Temp8 |= 0x1 << Temp16;
604 }
605
606 *Buffer = Temp8;
607 Buffer += 1;
608
609 /*
610 * Set the DMA Info
611 */
612 Temp8 = (UINT8) ((LinkedList->Data.Dma.Type & 0x03) << 5);
613 Temp8 |= ((LinkedList->Data.Dma.BusMaster & 0x01) << 2);
614 Temp8 |= (LinkedList->Data.Dma.Transfer & 0x03);
615
616 *Buffer = Temp8;
617 Buffer += 1;
618
619 /*
620 * Return the number of bytes consumed in this operation
621 */
622 *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer);
623 return_ACPI_STATUS (AE_OK);
624}
625