aslopcodes.c revision 1.8 1 1.1 jruoho /******************************************************************************
2 1.1 jruoho *
3 1.1 jruoho * Module Name: aslopcode - AML opcode generation
4 1.1 jruoho *
5 1.1 jruoho *****************************************************************************/
6 1.1 jruoho
7 1.2 christos /*
8 1.7 christos * Copyright (C) 2000 - 2017, Intel Corp.
9 1.1 jruoho * All rights reserved.
10 1.1 jruoho *
11 1.2 christos * Redistribution and use in source and binary forms, with or without
12 1.2 christos * modification, are permitted provided that the following conditions
13 1.2 christos * are met:
14 1.2 christos * 1. Redistributions of source code must retain the above copyright
15 1.2 christos * notice, this list of conditions, and the following disclaimer,
16 1.2 christos * without modification.
17 1.2 christos * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 1.2 christos * substantially similar to the "NO WARRANTY" disclaimer below
19 1.2 christos * ("Disclaimer") and any redistribution must be conditioned upon
20 1.2 christos * including a substantially similar Disclaimer requirement for further
21 1.2 christos * binary redistribution.
22 1.2 christos * 3. Neither the names of the above-listed copyright holders nor the names
23 1.2 christos * of any contributors may be used to endorse or promote products derived
24 1.2 christos * from this software without specific prior written permission.
25 1.2 christos *
26 1.2 christos * Alternatively, this software may be distributed under the terms of the
27 1.2 christos * GNU General Public License ("GPL") version 2 as published by the Free
28 1.2 christos * Software Foundation.
29 1.2 christos *
30 1.2 christos * NO WARRANTY
31 1.2 christos * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 1.2 christos * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 1.2 christos * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 1.2 christos * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 1.2 christos * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 1.2 christos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 1.2 christos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 1.2 christos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 1.2 christos * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 1.2 christos * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 1.2 christos * POSSIBILITY OF SUCH DAMAGES.
42 1.2 christos */
43 1.1 jruoho
44 1.1 jruoho #include "aslcompiler.h"
45 1.1 jruoho #include "aslcompiler.y.h"
46 1.1 jruoho #include "amlcode.h"
47 1.1 jruoho
48 1.1 jruoho #define _COMPONENT ACPI_COMPILER
49 1.1 jruoho ACPI_MODULE_NAME ("aslopcodes")
50 1.1 jruoho
51 1.1 jruoho
52 1.1 jruoho /* Local prototypes */
53 1.1 jruoho
54 1.1 jruoho static void
55 1.1 jruoho OpcDoAccessAs (
56 1.1 jruoho ACPI_PARSE_OBJECT *Op);
57 1.1 jruoho
58 1.1 jruoho static void
59 1.2 christos OpcDoConnection (
60 1.2 christos ACPI_PARSE_OBJECT *Op);
61 1.2 christos
62 1.2 christos static void
63 1.1 jruoho OpcDoUnicode (
64 1.1 jruoho ACPI_PARSE_OBJECT *Op);
65 1.1 jruoho
66 1.1 jruoho static void
67 1.1 jruoho OpcDoEisaId (
68 1.1 jruoho ACPI_PARSE_OBJECT *Op);
69 1.1 jruoho
70 1.1 jruoho static void
71 1.1 jruoho OpcDoUuId (
72 1.1 jruoho ACPI_PARSE_OBJECT *Op);
73 1.1 jruoho
74 1.1 jruoho
75 1.1 jruoho /*******************************************************************************
76 1.1 jruoho *
77 1.1 jruoho * FUNCTION: OpcAmlOpcodeUpdateWalk
78 1.1 jruoho *
79 1.1 jruoho * PARAMETERS: ASL_WALK_CALLBACK
80 1.1 jruoho *
81 1.1 jruoho * RETURN: Status
82 1.1 jruoho *
83 1.1 jruoho * DESCRIPTION: Opcode update walk, ascending callback
84 1.1 jruoho *
85 1.1 jruoho ******************************************************************************/
86 1.1 jruoho
87 1.1 jruoho ACPI_STATUS
88 1.1 jruoho OpcAmlOpcodeUpdateWalk (
89 1.1 jruoho ACPI_PARSE_OBJECT *Op,
90 1.1 jruoho UINT32 Level,
91 1.1 jruoho void *Context)
92 1.1 jruoho {
93 1.1 jruoho
94 1.1 jruoho /*
95 1.1 jruoho * Handle the Package() case where the actual opcode cannot be determined
96 1.1 jruoho * until the PackageLength operand has been folded and minimized.
97 1.1 jruoho * (PackageOp versus VarPackageOp)
98 1.1 jruoho *
99 1.1 jruoho * This is (as of ACPI 3.0) the only case where the AML opcode can change
100 1.1 jruoho * based upon the value of a parameter.
101 1.1 jruoho *
102 1.1 jruoho * The parser always inserts a VarPackage opcode, which can possibly be
103 1.1 jruoho * optimized to a Package opcode.
104 1.1 jruoho */
105 1.1 jruoho if (Op->Asl.ParseOpcode == PARSEOP_VAR_PACKAGE)
106 1.1 jruoho {
107 1.1 jruoho OpnDoPackage (Op);
108 1.1 jruoho }
109 1.1 jruoho
110 1.1 jruoho return (AE_OK);
111 1.1 jruoho }
112 1.1 jruoho
113 1.1 jruoho
114 1.1 jruoho /*******************************************************************************
115 1.1 jruoho *
116 1.1 jruoho * FUNCTION: OpcAmlOpcodeWalk
117 1.1 jruoho *
118 1.1 jruoho * PARAMETERS: ASL_WALK_CALLBACK
119 1.1 jruoho *
120 1.1 jruoho * RETURN: Status
121 1.1 jruoho *
122 1.1 jruoho * DESCRIPTION: Parse tree walk to generate both the AML opcodes and the AML
123 1.1 jruoho * operands.
124 1.1 jruoho *
125 1.1 jruoho ******************************************************************************/
126 1.1 jruoho
127 1.1 jruoho ACPI_STATUS
128 1.1 jruoho OpcAmlOpcodeWalk (
129 1.1 jruoho ACPI_PARSE_OBJECT *Op,
130 1.1 jruoho UINT32 Level,
131 1.1 jruoho void *Context)
132 1.1 jruoho {
133 1.1 jruoho
134 1.1 jruoho TotalParseNodes++;
135 1.1 jruoho
136 1.1 jruoho OpcGenerateAmlOpcode (Op);
137 1.1 jruoho OpnGenerateAmlOperands (Op);
138 1.1 jruoho return (AE_OK);
139 1.1 jruoho }
140 1.1 jruoho
141 1.1 jruoho
142 1.1 jruoho /*******************************************************************************
143 1.1 jruoho *
144 1.1 jruoho * FUNCTION: OpcGetIntegerWidth
145 1.1 jruoho *
146 1.1 jruoho * PARAMETERS: Op - DEFINITION BLOCK op
147 1.1 jruoho *
148 1.1 jruoho * RETURN: none
149 1.1 jruoho *
150 1.1 jruoho * DESCRIPTION: Extract integer width from the table revision
151 1.1 jruoho *
152 1.1 jruoho ******************************************************************************/
153 1.1 jruoho
154 1.1 jruoho void
155 1.1 jruoho OpcGetIntegerWidth (
156 1.1 jruoho ACPI_PARSE_OBJECT *Op)
157 1.1 jruoho {
158 1.1 jruoho ACPI_PARSE_OBJECT *Child;
159 1.1 jruoho
160 1.1 jruoho
161 1.1 jruoho if (!Op)
162 1.1 jruoho {
163 1.1 jruoho return;
164 1.1 jruoho }
165 1.1 jruoho
166 1.1 jruoho if (Gbl_RevisionOverride)
167 1.1 jruoho {
168 1.1 jruoho AcpiUtSetIntegerWidth (Gbl_RevisionOverride);
169 1.1 jruoho }
170 1.1 jruoho else
171 1.1 jruoho {
172 1.1 jruoho Child = Op->Asl.Child;
173 1.1 jruoho Child = Child->Asl.Next;
174 1.1 jruoho Child = Child->Asl.Next;
175 1.1 jruoho
176 1.1 jruoho /* Use the revision to set the integer width */
177 1.1 jruoho
178 1.1 jruoho AcpiUtSetIntegerWidth ((UINT8) Child->Asl.Value.Integer);
179 1.1 jruoho }
180 1.1 jruoho }
181 1.1 jruoho
182 1.1 jruoho
183 1.1 jruoho /*******************************************************************************
184 1.1 jruoho *
185 1.1 jruoho * FUNCTION: OpcSetOptimalIntegerSize
186 1.1 jruoho *
187 1.1 jruoho * PARAMETERS: Op - A parse tree node
188 1.1 jruoho *
189 1.2 christos * RETURN: Integer width, in bytes. Also sets the node AML opcode to the
190 1.1 jruoho * optimal integer AML prefix opcode.
191 1.1 jruoho *
192 1.2 christos * DESCRIPTION: Determine the optimal AML encoding of an integer. All leading
193 1.1 jruoho * zeros can be truncated to squeeze the integer into the
194 1.1 jruoho * minimal number of AML bytes.
195 1.1 jruoho *
196 1.1 jruoho ******************************************************************************/
197 1.1 jruoho
198 1.1 jruoho UINT32
199 1.1 jruoho OpcSetOptimalIntegerSize (
200 1.1 jruoho ACPI_PARSE_OBJECT *Op)
201 1.1 jruoho {
202 1.1 jruoho
203 1.1 jruoho #if 0
204 1.1 jruoho /*
205 1.1 jruoho * TBD: - we don't want to optimize integers in the block header, but the
206 1.1 jruoho * code below does not work correctly.
207 1.1 jruoho */
208 1.1 jruoho if (Op->Asl.Parent &&
209 1.1 jruoho Op->Asl.Parent->Asl.Parent &&
210 1.5 christos (Op->Asl.Parent->Asl.Parent->Asl.ParseOpcode == PARSEOP_DEFINITION_BLOCK))
211 1.1 jruoho {
212 1.2 christos return (0);
213 1.1 jruoho }
214 1.1 jruoho #endif
215 1.1 jruoho
216 1.1 jruoho /*
217 1.1 jruoho * Check for the special AML integers first - Zero, One, Ones.
218 1.1 jruoho * These are single-byte opcodes that are the smallest possible
219 1.1 jruoho * representation of an integer.
220 1.1 jruoho *
221 1.1 jruoho * This optimization is optional.
222 1.1 jruoho */
223 1.1 jruoho if (Gbl_IntegerOptimizationFlag)
224 1.1 jruoho {
225 1.1 jruoho switch (Op->Asl.Value.Integer)
226 1.1 jruoho {
227 1.1 jruoho case 0:
228 1.1 jruoho
229 1.1 jruoho Op->Asl.AmlOpcode = AML_ZERO_OP;
230 1.1 jruoho AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
231 1.1 jruoho Op, "Zero");
232 1.2 christos return (1);
233 1.1 jruoho
234 1.1 jruoho case 1:
235 1.1 jruoho
236 1.1 jruoho Op->Asl.AmlOpcode = AML_ONE_OP;
237 1.1 jruoho AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
238 1.1 jruoho Op, "One");
239 1.2 christos return (1);
240 1.1 jruoho
241 1.1 jruoho case ACPI_UINT32_MAX:
242 1.1 jruoho
243 1.1 jruoho /* Check for table integer width (32 or 64) */
244 1.1 jruoho
245 1.1 jruoho if (AcpiGbl_IntegerByteWidth == 4)
246 1.1 jruoho {
247 1.1 jruoho Op->Asl.AmlOpcode = AML_ONES_OP;
248 1.1 jruoho AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
249 1.1 jruoho Op, "Ones");
250 1.2 christos return (1);
251 1.1 jruoho }
252 1.1 jruoho break;
253 1.1 jruoho
254 1.1 jruoho case ACPI_UINT64_MAX:
255 1.1 jruoho
256 1.1 jruoho /* Check for table integer width (32 or 64) */
257 1.1 jruoho
258 1.1 jruoho if (AcpiGbl_IntegerByteWidth == 8)
259 1.1 jruoho {
260 1.1 jruoho Op->Asl.AmlOpcode = AML_ONES_OP;
261 1.1 jruoho AslError (ASL_OPTIMIZATION, ASL_MSG_INTEGER_OPTIMIZATION,
262 1.1 jruoho Op, "Ones");
263 1.2 christos return (1);
264 1.1 jruoho }
265 1.1 jruoho break;
266 1.1 jruoho
267 1.1 jruoho default:
268 1.2 christos
269 1.1 jruoho break;
270 1.1 jruoho }
271 1.1 jruoho }
272 1.1 jruoho
273 1.1 jruoho /* Find the best fit using the various AML integer prefixes */
274 1.1 jruoho
275 1.1 jruoho if (Op->Asl.Value.Integer <= ACPI_UINT8_MAX)
276 1.1 jruoho {
277 1.1 jruoho Op->Asl.AmlOpcode = AML_BYTE_OP;
278 1.2 christos return (1);
279 1.1 jruoho }
280 1.5 christos
281 1.1 jruoho if (Op->Asl.Value.Integer <= ACPI_UINT16_MAX)
282 1.1 jruoho {
283 1.1 jruoho Op->Asl.AmlOpcode = AML_WORD_OP;
284 1.2 christos return (2);
285 1.1 jruoho }
286 1.5 christos
287 1.1 jruoho if (Op->Asl.Value.Integer <= ACPI_UINT32_MAX)
288 1.1 jruoho {
289 1.1 jruoho Op->Asl.AmlOpcode = AML_DWORD_OP;
290 1.2 christos return (4);
291 1.1 jruoho }
292 1.7 christos else /* 64-bit integer */
293 1.1 jruoho {
294 1.1 jruoho if (AcpiGbl_IntegerByteWidth == 4)
295 1.1 jruoho {
296 1.1 jruoho AslError (ASL_WARNING, ASL_MSG_INTEGER_LENGTH,
297 1.1 jruoho Op, NULL);
298 1.1 jruoho
299 1.1 jruoho if (!Gbl_IgnoreErrors)
300 1.1 jruoho {
301 1.1 jruoho /* Truncate the integer to 32-bit */
302 1.7 christos
303 1.7 christos Op->Asl.Value.Integer &= ACPI_UINT32_MAX;
304 1.7 christos
305 1.7 christos /* Now set the optimal integer size */
306 1.7 christos
307 1.7 christos return (OpcSetOptimalIntegerSize (Op));
308 1.1 jruoho }
309 1.1 jruoho }
310 1.1 jruoho
311 1.1 jruoho Op->Asl.AmlOpcode = AML_QWORD_OP;
312 1.2 christos return (8);
313 1.1 jruoho }
314 1.1 jruoho }
315 1.1 jruoho
316 1.1 jruoho
317 1.1 jruoho /*******************************************************************************
318 1.1 jruoho *
319 1.1 jruoho * FUNCTION: OpcDoAccessAs
320 1.1 jruoho *
321 1.1 jruoho * PARAMETERS: Op - Parse node
322 1.1 jruoho *
323 1.1 jruoho * RETURN: None
324 1.1 jruoho *
325 1.1 jruoho * DESCRIPTION: Implement the ACCESS_AS ASL keyword.
326 1.1 jruoho *
327 1.1 jruoho ******************************************************************************/
328 1.1 jruoho
329 1.1 jruoho static void
330 1.1 jruoho OpcDoAccessAs (
331 1.1 jruoho ACPI_PARSE_OBJECT *Op)
332 1.1 jruoho {
333 1.2 christos ACPI_PARSE_OBJECT *TypeOp;
334 1.2 christos ACPI_PARSE_OBJECT *AttribOp;
335 1.2 christos ACPI_PARSE_OBJECT *LengthOp;
336 1.2 christos UINT8 Attribute;
337 1.1 jruoho
338 1.1 jruoho
339 1.1 jruoho Op->Asl.AmlOpcodeLength = 1;
340 1.2 christos TypeOp = Op->Asl.Child;
341 1.1 jruoho
342 1.1 jruoho /* First child is the access type */
343 1.1 jruoho
344 1.2 christos TypeOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
345 1.2 christos TypeOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
346 1.1 jruoho
347 1.1 jruoho /* Second child is the optional access attribute */
348 1.1 jruoho
349 1.2 christos AttribOp = TypeOp->Asl.Next;
350 1.2 christos if (AttribOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
351 1.2 christos {
352 1.2 christos AttribOp->Asl.Value.Integer = 0;
353 1.2 christos }
354 1.5 christos
355 1.2 christos AttribOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
356 1.2 christos AttribOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
357 1.2 christos
358 1.2 christos /* Only a few AccessAttributes support AccessLength */
359 1.2 christos
360 1.2 christos Attribute = (UINT8) AttribOp->Asl.Value.Integer;
361 1.2 christos if ((Attribute != AML_FIELD_ATTRIB_MULTIBYTE) &&
362 1.2 christos (Attribute != AML_FIELD_ATTRIB_RAW_BYTES) &&
363 1.2 christos (Attribute != AML_FIELD_ATTRIB_RAW_PROCESS))
364 1.2 christos {
365 1.2 christos return;
366 1.2 christos }
367 1.2 christos
368 1.2 christos Op->Asl.AmlOpcode = AML_FIELD_EXT_ACCESS_OP;
369 1.2 christos
370 1.2 christos /*
371 1.2 christos * Child of Attributes is the AccessLength (required for Multibyte,
372 1.2 christos * RawBytes, RawProcess.)
373 1.2 christos */
374 1.2 christos LengthOp = AttribOp->Asl.Child;
375 1.2 christos if (!LengthOp)
376 1.2 christos {
377 1.2 christos return;
378 1.2 christos }
379 1.2 christos
380 1.2 christos /* TBD: probably can remove */
381 1.2 christos
382 1.2 christos if (LengthOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
383 1.2 christos {
384 1.2 christos LengthOp->Asl.Value.Integer = 16;
385 1.2 christos }
386 1.2 christos
387 1.2 christos LengthOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
388 1.2 christos LengthOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
389 1.2 christos }
390 1.2 christos
391 1.2 christos
392 1.2 christos /*******************************************************************************
393 1.2 christos *
394 1.2 christos * FUNCTION: OpcDoConnection
395 1.2 christos *
396 1.2 christos * PARAMETERS: Op - Parse node
397 1.2 christos *
398 1.2 christos * RETURN: None
399 1.2 christos *
400 1.2 christos * DESCRIPTION: Implement the Connection ASL keyword.
401 1.2 christos *
402 1.2 christos ******************************************************************************/
403 1.2 christos
404 1.2 christos static void
405 1.2 christos OpcDoConnection (
406 1.2 christos ACPI_PARSE_OBJECT *Op)
407 1.2 christos {
408 1.2 christos ASL_RESOURCE_NODE *Rnode;
409 1.2 christos ACPI_PARSE_OBJECT *BufferOp;
410 1.2 christos ACPI_PARSE_OBJECT *BufferLengthOp;
411 1.2 christos ACPI_PARSE_OBJECT *BufferDataOp;
412 1.2 christos ASL_RESOURCE_INFO Info;
413 1.2 christos UINT8 State;
414 1.2 christos
415 1.2 christos
416 1.2 christos Op->Asl.AmlOpcodeLength = 1;
417 1.2 christos
418 1.2 christos if (Op->Asl.Child->Asl.AmlOpcode == AML_INT_NAMEPATH_OP)
419 1.2 christos {
420 1.2 christos return;
421 1.2 christos }
422 1.2 christos
423 1.2 christos BufferOp = Op->Asl.Child;
424 1.2 christos BufferLengthOp = BufferOp->Asl.Child;
425 1.2 christos BufferDataOp = BufferLengthOp->Asl.Next;
426 1.2 christos
427 1.2 christos Info.DescriptorTypeOp = BufferDataOp->Asl.Next;
428 1.2 christos Info.CurrentByteOffset = 0;
429 1.2 christos State = ACPI_RSTATE_NORMAL;
430 1.2 christos Rnode = RsDoOneResourceDescriptor (&Info, &State);
431 1.2 christos if (!Rnode)
432 1.1 jruoho {
433 1.2 christos return; /* error */
434 1.1 jruoho }
435 1.2 christos
436 1.2 christos /*
437 1.2 christos * Transform the nodes into the following
438 1.2 christos *
439 1.2 christos * Op -> AML_BUFFER_OP
440 1.2 christos * First Child -> BufferLength
441 1.2 christos * Second Child -> Descriptor Buffer (raw byte data)
442 1.2 christos */
443 1.5 christos BufferOp->Asl.ParseOpcode = PARSEOP_BUFFER;
444 1.5 christos BufferOp->Asl.AmlOpcode = AML_BUFFER_OP;
445 1.8 christos BufferOp->Asl.CompileFlags = OP_AML_PACKAGE | OP_IS_RESOURCE_DESC;
446 1.2 christos UtSetParseOpName (BufferOp);
447 1.2 christos
448 1.5 christos BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
449 1.2 christos BufferLengthOp->Asl.Value.Integer = Rnode->BufferLength;
450 1.2 christos (void) OpcSetOptimalIntegerSize (BufferLengthOp);
451 1.2 christos UtSetParseOpName (BufferLengthOp);
452 1.2 christos
453 1.5 christos BufferDataOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
454 1.5 christos BufferDataOp->Asl.AmlOpcode = AML_RAW_DATA_CHAIN;
455 1.5 christos BufferDataOp->Asl.AmlOpcodeLength = 0;
456 1.5 christos BufferDataOp->Asl.AmlLength = Rnode->BufferLength;
457 1.5 christos BufferDataOp->Asl.Value.Buffer = (UINT8 *) Rnode;
458 1.2 christos UtSetParseOpName (BufferDataOp);
459 1.1 jruoho }
460 1.1 jruoho
461 1.1 jruoho
462 1.1 jruoho /*******************************************************************************
463 1.1 jruoho *
464 1.1 jruoho * FUNCTION: OpcDoUnicode
465 1.1 jruoho *
466 1.1 jruoho * PARAMETERS: Op - Parse node
467 1.1 jruoho *
468 1.1 jruoho * RETURN: None
469 1.1 jruoho *
470 1.1 jruoho * DESCRIPTION: Implement the UNICODE ASL "macro". Convert the input string
471 1.2 christos * to a unicode buffer. There is no Unicode AML opcode.
472 1.1 jruoho *
473 1.1 jruoho * Note: The Unicode string is 16 bits per character, no leading signature,
474 1.1 jruoho * with a 16-bit terminating NULL.
475 1.1 jruoho *
476 1.1 jruoho ******************************************************************************/
477 1.1 jruoho
478 1.1 jruoho static void
479 1.1 jruoho OpcDoUnicode (
480 1.1 jruoho ACPI_PARSE_OBJECT *Op)
481 1.1 jruoho {
482 1.1 jruoho ACPI_PARSE_OBJECT *InitializerOp;
483 1.1 jruoho UINT32 Length;
484 1.1 jruoho UINT32 Count;
485 1.1 jruoho UINT32 i;
486 1.1 jruoho UINT8 *AsciiString;
487 1.1 jruoho UINT16 *UnicodeString;
488 1.1 jruoho ACPI_PARSE_OBJECT *BufferLengthOp;
489 1.1 jruoho
490 1.1 jruoho
491 1.1 jruoho /* Change op into a buffer object */
492 1.1 jruoho
493 1.8 christos Op->Asl.CompileFlags &= ~OP_COMPILE_TIME_CONST;
494 1.1 jruoho Op->Asl.ParseOpcode = PARSEOP_BUFFER;
495 1.1 jruoho UtSetParseOpName (Op);
496 1.1 jruoho
497 1.1 jruoho /* Buffer Length is first, followed by the string */
498 1.1 jruoho
499 1.1 jruoho BufferLengthOp = Op->Asl.Child;
500 1.1 jruoho InitializerOp = BufferLengthOp->Asl.Next;
501 1.1 jruoho
502 1.1 jruoho AsciiString = (UINT8 *) InitializerOp->Asl.Value.String;
503 1.1 jruoho
504 1.1 jruoho /* Create a new buffer for the Unicode string */
505 1.1 jruoho
506 1.1 jruoho Count = strlen (InitializerOp->Asl.Value.String) + 1;
507 1.1 jruoho Length = Count * sizeof (UINT16);
508 1.1 jruoho UnicodeString = UtLocalCalloc (Length);
509 1.1 jruoho
510 1.1 jruoho /* Convert to Unicode string (including null terminator) */
511 1.1 jruoho
512 1.1 jruoho for (i = 0; i < Count; i++)
513 1.1 jruoho {
514 1.1 jruoho UnicodeString[i] = (UINT16) AsciiString[i];
515 1.1 jruoho }
516 1.1 jruoho
517 1.1 jruoho /*
518 1.1 jruoho * Just set the buffer size node to be the buffer length, regardless
519 1.1 jruoho * of whether it was previously an integer or a default_arg placeholder
520 1.1 jruoho */
521 1.5 christos BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
522 1.5 christos BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP;
523 1.1 jruoho BufferLengthOp->Asl.Value.Integer = Length;
524 1.1 jruoho UtSetParseOpName (BufferLengthOp);
525 1.1 jruoho
526 1.1 jruoho (void) OpcSetOptimalIntegerSize (BufferLengthOp);
527 1.1 jruoho
528 1.1 jruoho /* The Unicode string is a raw data buffer */
529 1.1 jruoho
530 1.5 christos InitializerOp->Asl.Value.Buffer = (UINT8 *) UnicodeString;
531 1.5 christos InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER;
532 1.5 christos InitializerOp->Asl.AmlLength = Length;
533 1.5 christos InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
534 1.5 christos InitializerOp->Asl.Child = NULL;
535 1.1 jruoho UtSetParseOpName (InitializerOp);
536 1.1 jruoho }
537 1.1 jruoho
538 1.1 jruoho
539 1.1 jruoho /*******************************************************************************
540 1.1 jruoho *
541 1.1 jruoho * FUNCTION: OpcDoEisaId
542 1.1 jruoho *
543 1.1 jruoho * PARAMETERS: Op - Parse node
544 1.1 jruoho *
545 1.1 jruoho * RETURN: None
546 1.1 jruoho *
547 1.2 christos * DESCRIPTION: Convert a string EISA ID to numeric representation. See the
548 1.2 christos * Pnp BIOS Specification for details. Here is an excerpt:
549 1.1 jruoho *
550 1.1 jruoho * A seven character ASCII representation of the product
551 1.2 christos * identifier compressed into a 32-bit identifier. The seven
552 1.1 jruoho * character ID consists of a three character manufacturer code,
553 1.1 jruoho * a three character hexadecimal product identifier, and a one
554 1.2 christos * character hexadecimal revision number. The manufacturer code
555 1.1 jruoho * is a 3 uppercase character code that is compressed into 3 5-bit
556 1.1 jruoho * values as follows:
557 1.1 jruoho * 1) Find hex ASCII value for each letter
558 1.1 jruoho * 2) Subtract 40h from each ASCII value
559 1.2 christos * 3) Retain 5 least significant bits for each letter by
560 1.1 jruoho * discarding upper 3 bits because they are always 0.
561 1.1 jruoho * 4) Compressed code = concatenate 0 and the 3 5-bit values
562 1.1 jruoho *
563 1.1 jruoho * The format of the compressed product identifier is as follows:
564 1.1 jruoho * Byte 0: Bit 7 - Reserved (0)
565 1.1 jruoho * Bits 6-2: - 1st character of compressed mfg code
566 1.1 jruoho * Bits 1-0 - Upper 2 bits of 2nd character of mfg code
567 1.1 jruoho * Byte 1: Bits 7-5 - Lower 3 bits of 2nd character of mfg code
568 1.1 jruoho * Bits 4-0 - 3rd character of mfg code
569 1.1 jruoho * Byte 2: Bits 7-4 - 1st hex digit of product number
570 1.1 jruoho * Bits 3-0 - 2nd hex digit of product number
571 1.1 jruoho * Byte 3: Bits 7-4 - 3st hex digit of product number
572 1.1 jruoho * Bits 3-0 - Hex digit of the revision number
573 1.1 jruoho *
574 1.1 jruoho ******************************************************************************/
575 1.1 jruoho
576 1.1 jruoho static void
577 1.1 jruoho OpcDoEisaId (
578 1.1 jruoho ACPI_PARSE_OBJECT *Op)
579 1.1 jruoho {
580 1.1 jruoho UINT32 EisaId = 0;
581 1.1 jruoho UINT32 BigEndianId;
582 1.1 jruoho char *InString;
583 1.1 jruoho ACPI_STATUS Status = AE_OK;
584 1.1 jruoho UINT32 i;
585 1.1 jruoho
586 1.1 jruoho
587 1.1 jruoho InString = (char *) Op->Asl.Value.String;
588 1.1 jruoho
589 1.1 jruoho /*
590 1.1 jruoho * The EISAID string must be exactly 7 characters and of the form
591 1.1 jruoho * "UUUXXXX" -- 3 uppercase letters and 4 hex digits (e.g., "PNP0001")
592 1.1 jruoho */
593 1.3 christos if (strlen (InString) != 7)
594 1.1 jruoho {
595 1.1 jruoho Status = AE_BAD_PARAMETER;
596 1.1 jruoho }
597 1.1 jruoho else
598 1.1 jruoho {
599 1.1 jruoho /* Check all 7 characters for correct format */
600 1.1 jruoho
601 1.1 jruoho for (i = 0; i < 7; i++)
602 1.1 jruoho {
603 1.1 jruoho /* First 3 characters must be uppercase letters */
604 1.1 jruoho
605 1.1 jruoho if (i < 3)
606 1.1 jruoho {
607 1.1 jruoho if (!isupper ((int) InString[i]))
608 1.1 jruoho {
609 1.1 jruoho Status = AE_BAD_PARAMETER;
610 1.1 jruoho }
611 1.1 jruoho }
612 1.1 jruoho
613 1.1 jruoho /* Last 4 characters must be hex digits */
614 1.1 jruoho
615 1.1 jruoho else if (!isxdigit ((int) InString[i]))
616 1.1 jruoho {
617 1.1 jruoho Status = AE_BAD_PARAMETER;
618 1.1 jruoho }
619 1.1 jruoho }
620 1.1 jruoho }
621 1.1 jruoho
622 1.1 jruoho if (ACPI_FAILURE (Status))
623 1.1 jruoho {
624 1.1 jruoho AslError (ASL_ERROR, ASL_MSG_INVALID_EISAID, Op, Op->Asl.Value.String);
625 1.1 jruoho }
626 1.1 jruoho else
627 1.1 jruoho {
628 1.1 jruoho /* Create ID big-endian first (bits are contiguous) */
629 1.1 jruoho
630 1.1 jruoho BigEndianId =
631 1.2 christos (UINT32) ((UINT8) (InString[0] - 0x40)) << 26 |
632 1.2 christos (UINT32) ((UINT8) (InString[1] - 0x40)) << 21 |
633 1.2 christos (UINT32) ((UINT8) (InString[2] - 0x40)) << 16 |
634 1.2 christos
635 1.2 christos (AcpiUtAsciiCharToHex (InString[3])) << 12 |
636 1.2 christos (AcpiUtAsciiCharToHex (InString[4])) << 8 |
637 1.2 christos (AcpiUtAsciiCharToHex (InString[5])) << 4 |
638 1.2 christos AcpiUtAsciiCharToHex (InString[6]);
639 1.1 jruoho
640 1.1 jruoho /* Swap to little-endian to get final ID (see function header) */
641 1.1 jruoho
642 1.1 jruoho EisaId = AcpiUtDwordByteSwap (BigEndianId);
643 1.1 jruoho }
644 1.1 jruoho
645 1.1 jruoho /*
646 1.1 jruoho * Morph the Op into an integer, regardless of whether there
647 1.1 jruoho * was an error in the EISAID string
648 1.1 jruoho */
649 1.1 jruoho Op->Asl.Value.Integer = EisaId;
650 1.1 jruoho
651 1.8 christos Op->Asl.CompileFlags &= ~OP_COMPILE_TIME_CONST;
652 1.1 jruoho Op->Asl.ParseOpcode = PARSEOP_INTEGER;
653 1.1 jruoho (void) OpcSetOptimalIntegerSize (Op);
654 1.1 jruoho
655 1.1 jruoho /* Op is now an integer */
656 1.1 jruoho
657 1.1 jruoho UtSetParseOpName (Op);
658 1.1 jruoho }
659 1.1 jruoho
660 1.1 jruoho
661 1.1 jruoho /*******************************************************************************
662 1.1 jruoho *
663 1.2 christos * FUNCTION: OpcDoUuId
664 1.2 christos *
665 1.2 christos * PARAMETERS: Op - Parse node
666 1.2 christos *
667 1.2 christos * RETURN: None
668 1.2 christos *
669 1.2 christos * DESCRIPTION: Convert UUID string to 16-byte buffer
670 1.2 christos *
671 1.2 christos ******************************************************************************/
672 1.2 christos
673 1.2 christos static void
674 1.2 christos OpcDoUuId (
675 1.2 christos ACPI_PARSE_OBJECT *Op)
676 1.2 christos {
677 1.2 christos char *InString;
678 1.2 christos UINT8 *Buffer;
679 1.2 christos ACPI_STATUS Status = AE_OK;
680 1.2 christos ACPI_PARSE_OBJECT *NewOp;
681 1.2 christos
682 1.2 christos
683 1.2 christos InString = ACPI_CAST_PTR (char, Op->Asl.Value.String);
684 1.1 jruoho Buffer = UtLocalCalloc (16);
685 1.1 jruoho
686 1.2 christos Status = AuValidateUuid (InString);
687 1.1 jruoho if (ACPI_FAILURE (Status))
688 1.1 jruoho {
689 1.1 jruoho AslError (ASL_ERROR, ASL_MSG_INVALID_UUID, Op, Op->Asl.Value.String);
690 1.1 jruoho }
691 1.2 christos else
692 1.1 jruoho {
693 1.2 christos AcpiUtConvertStringToUuid (InString, Buffer);
694 1.1 jruoho }
695 1.1 jruoho
696 1.1 jruoho /* Change Op to a Buffer */
697 1.1 jruoho
698 1.1 jruoho Op->Asl.ParseOpcode = PARSEOP_BUFFER;
699 1.1 jruoho Op->Common.AmlOpcode = AML_BUFFER_OP;
700 1.1 jruoho
701 1.1 jruoho /* Disable further optimization */
702 1.1 jruoho
703 1.8 christos Op->Asl.CompileFlags &= ~OP_COMPILE_TIME_CONST;
704 1.1 jruoho UtSetParseOpName (Op);
705 1.1 jruoho
706 1.1 jruoho /* Child node is the buffer length */
707 1.1 jruoho
708 1.8 christos NewOp = TrAllocateOp (PARSEOP_INTEGER);
709 1.1 jruoho
710 1.5 christos NewOp->Asl.AmlOpcode = AML_BYTE_OP;
711 1.1 jruoho NewOp->Asl.Value.Integer = 16;
712 1.5 christos NewOp->Asl.Parent = Op;
713 1.1 jruoho
714 1.1 jruoho Op->Asl.Child = NewOp;
715 1.1 jruoho Op = NewOp;
716 1.1 jruoho
717 1.1 jruoho /* Peer to the child is the raw buffer data */
718 1.1 jruoho
719 1.8 christos NewOp = TrAllocateOp (PARSEOP_RAW_DATA);
720 1.5 christos NewOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER;
721 1.5 christos NewOp->Asl.AmlLength = 16;
722 1.5 christos NewOp->Asl.Value.String = ACPI_CAST_PTR (char, Buffer);
723 1.5 christos NewOp->Asl.Parent = Op->Asl.Parent;
724 1.1 jruoho
725 1.1 jruoho Op->Asl.Next = NewOp;
726 1.1 jruoho }
727 1.1 jruoho
728 1.1 jruoho
729 1.1 jruoho /*******************************************************************************
730 1.1 jruoho *
731 1.1 jruoho * FUNCTION: OpcGenerateAmlOpcode
732 1.1 jruoho *
733 1.2 christos * PARAMETERS: Op - Parse node
734 1.1 jruoho *
735 1.1 jruoho * RETURN: None
736 1.1 jruoho *
737 1.1 jruoho * DESCRIPTION: Generate the AML opcode associated with the node and its
738 1.2 christos * parse (lex/flex) keyword opcode. Essentially implements
739 1.1 jruoho * a mapping between the parse opcodes and the actual AML opcodes.
740 1.1 jruoho *
741 1.1 jruoho ******************************************************************************/
742 1.1 jruoho
743 1.1 jruoho void
744 1.1 jruoho OpcGenerateAmlOpcode (
745 1.1 jruoho ACPI_PARSE_OBJECT *Op)
746 1.1 jruoho {
747 1.1 jruoho UINT16 Index;
748 1.1 jruoho
749 1.1 jruoho
750 1.1 jruoho Index = (UINT16) (Op->Asl.ParseOpcode - ASL_PARSE_OPCODE_BASE);
751 1.1 jruoho
752 1.1 jruoho Op->Asl.AmlOpcode = AslKeywordMapping[Index].AmlOpcode;
753 1.1 jruoho Op->Asl.AcpiBtype = AslKeywordMapping[Index].AcpiBtype;
754 1.1 jruoho Op->Asl.CompileFlags |= AslKeywordMapping[Index].Flags;
755 1.1 jruoho
756 1.1 jruoho if (!Op->Asl.Value.Integer)
757 1.1 jruoho {
758 1.1 jruoho Op->Asl.Value.Integer = AslKeywordMapping[Index].Value;
759 1.1 jruoho }
760 1.1 jruoho
761 1.1 jruoho /* Special handling for some opcodes */
762 1.1 jruoho
763 1.1 jruoho switch (Op->Asl.ParseOpcode)
764 1.1 jruoho {
765 1.1 jruoho case PARSEOP_INTEGER:
766 1.1 jruoho /*
767 1.1 jruoho * Set the opcode based on the size of the integer
768 1.1 jruoho */
769 1.1 jruoho (void) OpcSetOptimalIntegerSize (Op);
770 1.1 jruoho break;
771 1.1 jruoho
772 1.1 jruoho case PARSEOP_OFFSET:
773 1.1 jruoho
774 1.1 jruoho Op->Asl.AmlOpcodeLength = 1;
775 1.1 jruoho break;
776 1.1 jruoho
777 1.1 jruoho case PARSEOP_ACCESSAS:
778 1.1 jruoho
779 1.1 jruoho OpcDoAccessAs (Op);
780 1.1 jruoho break;
781 1.1 jruoho
782 1.2 christos case PARSEOP_CONNECTION:
783 1.2 christos
784 1.2 christos OpcDoConnection (Op);
785 1.2 christos break;
786 1.2 christos
787 1.1 jruoho case PARSEOP_EISAID:
788 1.1 jruoho
789 1.1 jruoho OpcDoEisaId (Op);
790 1.1 jruoho break;
791 1.1 jruoho
792 1.2 christos case PARSEOP_PRINTF:
793 1.2 christos
794 1.2 christos OpcDoPrintf (Op);
795 1.2 christos break;
796 1.2 christos
797 1.2 christos case PARSEOP_FPRINTF:
798 1.2 christos
799 1.2 christos OpcDoFprintf (Op);
800 1.2 christos break;
801 1.2 christos
802 1.2 christos case PARSEOP_TOPLD:
803 1.2 christos
804 1.2 christos OpcDoPld (Op);
805 1.2 christos break;
806 1.2 christos
807 1.1 jruoho case PARSEOP_TOUUID:
808 1.1 jruoho
809 1.1 jruoho OpcDoUuId (Op);
810 1.1 jruoho break;
811 1.1 jruoho
812 1.1 jruoho case PARSEOP_UNICODE:
813 1.1 jruoho
814 1.1 jruoho OpcDoUnicode (Op);
815 1.1 jruoho break;
816 1.1 jruoho
817 1.1 jruoho case PARSEOP_INCLUDE:
818 1.1 jruoho
819 1.1 jruoho Gbl_HasIncludeFiles = TRUE;
820 1.1 jruoho break;
821 1.1 jruoho
822 1.1 jruoho case PARSEOP_EXTERNAL:
823 1.1 jruoho
824 1.6 christos if (Gbl_DoExternals == FALSE)
825 1.6 christos {
826 1.6 christos Op->Asl.Child->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
827 1.6 christos Op->Asl.Child->Asl.Next->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
828 1.6 christos }
829 1.1 jruoho break;
830 1.1 jruoho
831 1.2 christos case PARSEOP_TIMER:
832 1.2 christos
833 1.2 christos if (AcpiGbl_IntegerBitWidth == 32)
834 1.2 christos {
835 1.2 christos AslError (ASL_REMARK, ASL_MSG_TRUNCATION, Op, NULL);
836 1.2 christos }
837 1.2 christos break;
838 1.2 christos
839 1.1 jruoho default:
840 1.2 christos
841 1.1 jruoho /* Nothing to do for other opcodes */
842 1.2 christos
843 1.1 jruoho break;
844 1.1 jruoho }
845 1.1 jruoho
846 1.1 jruoho return;
847 1.1 jruoho }
848