1bc36eafdSMike Gerdts %{
2bc36eafdSMike Gerdts /******************************************************************************
3bc36eafdSMike Gerdts *
4bc36eafdSMike Gerdts * Module Name: dtparser.y - Bison input file for table compiler parser
5bc36eafdSMike Gerdts *
6bc36eafdSMike Gerdts *****************************************************************************/
7bc36eafdSMike Gerdts
8*35786f68SRobert Mustacchi /******************************************************************************
9*35786f68SRobert Mustacchi *
10*35786f68SRobert Mustacchi * 1. Copyright Notice
11*35786f68SRobert Mustacchi *
12*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
13bc36eafdSMike Gerdts * All rights reserved.
14bc36eafdSMike Gerdts *
15*35786f68SRobert Mustacchi * 2. License
16*35786f68SRobert Mustacchi *
17*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
18*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
19*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
20*35786f68SRobert Mustacchi * property rights.
21*35786f68SRobert Mustacchi *
22*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
24*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
26*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
27*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
28*35786f68SRobert Mustacchi *
29*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
31*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
32*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
33*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
34*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
35*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
36*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
37*35786f68SRobert Mustacchi *
38*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
39*35786f68SRobert Mustacchi * conditions are met:
40*35786f68SRobert Mustacchi *
41*35786f68SRobert Mustacchi * 3. Conditions
42*35786f68SRobert Mustacchi *
43*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
45*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
46*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
47*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
48*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
49*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
50*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
51*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
52*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
53*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
54*35786f68SRobert Mustacchi *
55*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
57*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
58*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
59*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
60*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
61*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
62*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
63*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
64*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
65*35786f68SRobert Mustacchi * make.
66*35786f68SRobert Mustacchi *
67*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
68*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
69*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
70*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
71*35786f68SRobert Mustacchi * distribution.
72*35786f68SRobert Mustacchi *
73*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
74*35786f68SRobert Mustacchi * Intel Code.
75*35786f68SRobert Mustacchi *
76*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
78*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
79*35786f68SRobert Mustacchi * without prior written authorization from Intel.
80*35786f68SRobert Mustacchi *
81*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
82*35786f68SRobert Mustacchi *
83*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
90*35786f68SRobert Mustacchi *
91*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98*35786f68SRobert Mustacchi * LIMITED REMEDY.
99*35786f68SRobert Mustacchi *
100*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
101*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
102*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
103*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
104*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
105*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
106*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
107*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
108*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
110*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
111*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
112*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
113*35786f68SRobert Mustacchi * such license, approval or letter.
114*35786f68SRobert Mustacchi *
115*35786f68SRobert Mustacchi *****************************************************************************
116*35786f68SRobert Mustacchi *
117*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
118*35786f68SRobert Mustacchi * following license:
119*35786f68SRobert Mustacchi *
120bc36eafdSMike Gerdts * Redistribution and use in source and binary forms, with or without
121bc36eafdSMike Gerdts * modification, are permitted provided that the following conditions
122bc36eafdSMike Gerdts * are met:
123bc36eafdSMike Gerdts * 1. Redistributions of source code must retain the above copyright
124bc36eafdSMike Gerdts * notice, this list of conditions, and the following disclaimer,
125bc36eafdSMike Gerdts * without modification.
126bc36eafdSMike Gerdts * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127bc36eafdSMike Gerdts * substantially similar to the "NO WARRANTY" disclaimer below
128bc36eafdSMike Gerdts * ("Disclaimer") and any redistribution must be conditioned upon
129bc36eafdSMike Gerdts * including a substantially similar Disclaimer requirement for further
130bc36eafdSMike Gerdts * binary redistribution.
131bc36eafdSMike Gerdts * 3. Neither the names of the above-listed copyright holders nor the names
132bc36eafdSMike Gerdts * of any contributors may be used to endorse or promote products derived
133bc36eafdSMike Gerdts * from this software without specific prior written permission.
134bc36eafdSMike Gerdts *
135bc36eafdSMike Gerdts * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136bc36eafdSMike Gerdts * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138bc36eafdSMike Gerdts * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146*35786f68SRobert Mustacchi *
147*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
148*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
149*35786f68SRobert Mustacchi * Software Foundation.
150*35786f68SRobert Mustacchi *
151*35786f68SRobert Mustacchi *****************************************************************************/
152bc36eafdSMike Gerdts
153bc36eafdSMike Gerdts #include "aslcompiler.h"
154bc36eafdSMike Gerdts
155bc36eafdSMike Gerdts #define _COMPONENT DT_COMPILER
156bc36eafdSMike Gerdts ACPI_MODULE_NAME ("dtparser")
157bc36eafdSMike Gerdts
158bc36eafdSMike Gerdts void * AslLocalAllocate (unsigned int Size);
159bc36eafdSMike Gerdts
160bc36eafdSMike Gerdts /* Bison/yacc configuration */
161bc36eafdSMike Gerdts
162bc36eafdSMike Gerdts #undef alloca
163bc36eafdSMike Gerdts #define alloca AslLocalAllocate
164bc36eafdSMike Gerdts
165bc36eafdSMike Gerdts int DtParserlex (void);
166bc36eafdSMike Gerdts int DtParserparse (void);
167bc36eafdSMike Gerdts void DtParsererror (char const *msg);
168bc36eafdSMike Gerdts extern char *DtParsertext;
169bc36eafdSMike Gerdts extern DT_FIELD *Gbl_CurrentField;
170bc36eafdSMike Gerdts
171bc36eafdSMike Gerdts UINT64 DtParserResult; /* Expression return value */
172bc36eafdSMike Gerdts
173bc36eafdSMike Gerdts /* Bison/yacc configuration */
174bc36eafdSMike Gerdts
175bc36eafdSMike Gerdts #define yytname DtParsername
176bc36eafdSMike Gerdts #define YYDEBUG 1 /* Enable debug output */
177bc36eafdSMike Gerdts #define YYERROR_VERBOSE 1 /* Verbose error messages */
178bc36eafdSMike Gerdts #define YYFLAG -32768
179bc36eafdSMike Gerdts
180bc36eafdSMike Gerdts /* Define YYMALLOC/YYFREE to prevent redefinition errors */
181bc36eafdSMike Gerdts
182bc36eafdSMike Gerdts #define YYMALLOC malloc
183bc36eafdSMike Gerdts #define YYFREE free
184bc36eafdSMike Gerdts %}
185bc36eafdSMike Gerdts
186bc36eafdSMike Gerdts %union
187bc36eafdSMike Gerdts {
188bc36eafdSMike Gerdts UINT64 value;
189bc36eafdSMike Gerdts UINT32 op;
190bc36eafdSMike Gerdts }
191bc36eafdSMike Gerdts
192bc36eafdSMike Gerdts /*! [Begin] no source code translation */
193bc36eafdSMike Gerdts
194bc36eafdSMike Gerdts %type <value> Expression
195bc36eafdSMike Gerdts
196*35786f68SRobert Mustacchi %token <op> OP_EXP_EOF
197*35786f68SRobert Mustacchi %token <op> OP_EXP_NEW_LINE
198*35786f68SRobert Mustacchi %token <op> OP_EXP_NUMBER
199*35786f68SRobert Mustacchi %token <op> OP_EXP_HEX_NUMBER
200*35786f68SRobert Mustacchi %token <op> OP_EXP_DECIMAL_NUMBER
201*35786f68SRobert Mustacchi %token <op> OP_EXP_LABEL
202*35786f68SRobert Mustacchi %token <op> OP_EXP_PAREN_OPEN
203*35786f68SRobert Mustacchi %token <op> OP_EXP_PAREN_CLOSE
204*35786f68SRobert Mustacchi
205*35786f68SRobert Mustacchi %left <op> OP_EXP_LOGICAL_OR
206*35786f68SRobert Mustacchi %left <op> OP_EXP_LOGICAL_AND
207*35786f68SRobert Mustacchi %left <op> OP_EXP_OR
208*35786f68SRobert Mustacchi %left <op> OP_EXP_XOR
209*35786f68SRobert Mustacchi %left <op> OP_EXP_AND
210*35786f68SRobert Mustacchi %left <op> OP_EXP_EQUAL OP_EXP_NOT_EQUAL
211*35786f68SRobert Mustacchi %left <op> OP_EXP_GREATER OP_EXP_LESS OP_EXP_GREATER_EQUAL OP_EXP_LESS_EQUAL
212*35786f68SRobert Mustacchi %left <op> OP_EXP_SHIFT_RIGHT OP_EXP_SHIFT_LEFT
213*35786f68SRobert Mustacchi %left <op> OP_EXP_ADD OP_EXP_SUBTRACT
214*35786f68SRobert Mustacchi %left <op> OP_EXP_MULTIPLY OP_EXP_DIVIDE OP_EXP_MODULO
215*35786f68SRobert Mustacchi %right <op> OP_EXP_ONES_COMPLIMENT OP_EXP_LOGICAL_NOT
216bc36eafdSMike Gerdts
217bc36eafdSMike Gerdts %%
218bc36eafdSMike Gerdts
219bc36eafdSMike Gerdts /*
220bc36eafdSMike Gerdts * Operator precedence rules (from K&R)
221bc36eafdSMike Gerdts *
222bc36eafdSMike Gerdts * 1) ( )
223bc36eafdSMike Gerdts * 2) ! ~ (unary operators that are supported here)
224bc36eafdSMike Gerdts * 3) * / %
225bc36eafdSMike Gerdts * 4) + -
226bc36eafdSMike Gerdts * 5) >> <<
227bc36eafdSMike Gerdts * 6) < > <= >=
228bc36eafdSMike Gerdts * 7) == !=
229bc36eafdSMike Gerdts * 8) &
230bc36eafdSMike Gerdts * 9) ^
231bc36eafdSMike Gerdts * 10) |
232bc36eafdSMike Gerdts * 11) &&
233bc36eafdSMike Gerdts * 12) ||
234bc36eafdSMike Gerdts */
235bc36eafdSMike Gerdts Value
236*35786f68SRobert Mustacchi : Expression OP_EXP_NEW_LINE { DtParserResult=$1; return 0; } /* End of line (newline) */
237*35786f68SRobert Mustacchi | Expression OP_EXP_EOF { DtParserResult=$1; return 0; } /* End of string (0) */
238bc36eafdSMike Gerdts ;
239bc36eafdSMike Gerdts
240bc36eafdSMike Gerdts Expression
241bc36eafdSMike Gerdts
242bc36eafdSMike Gerdts /* Unary operators */
243bc36eafdSMike Gerdts
244*35786f68SRobert Mustacchi : OP_EXP_LOGICAL_NOT Expression { $$ = DtDoOperator ($2, OP_EXP_LOGICAL_NOT, $2);}
245*35786f68SRobert Mustacchi | OP_EXP_ONES_COMPLIMENT Expression { $$ = DtDoOperator ($2, OP_EXP_ONES_COMPLIMENT, $2);}
246bc36eafdSMike Gerdts
247bc36eafdSMike Gerdts /* Binary operators */
248bc36eafdSMike Gerdts
249*35786f68SRobert Mustacchi | Expression OP_EXP_MULTIPLY Expression { $$ = DtDoOperator ($1, OP_EXP_MULTIPLY, $3);}
250*35786f68SRobert Mustacchi | Expression OP_EXP_DIVIDE Expression { $$ = DtDoOperator ($1, OP_EXP_DIVIDE, $3);}
251*35786f68SRobert Mustacchi | Expression OP_EXP_MODULO Expression { $$ = DtDoOperator ($1, OP_EXP_MODULO, $3);}
252*35786f68SRobert Mustacchi | Expression OP_EXP_ADD Expression { $$ = DtDoOperator ($1, OP_EXP_ADD, $3);}
253*35786f68SRobert Mustacchi | Expression OP_EXP_SUBTRACT Expression { $$ = DtDoOperator ($1, OP_EXP_SUBTRACT, $3);}
254*35786f68SRobert Mustacchi | Expression OP_EXP_SHIFT_RIGHT Expression { $$ = DtDoOperator ($1, OP_EXP_SHIFT_RIGHT, $3);}
255*35786f68SRobert Mustacchi | Expression OP_EXP_SHIFT_LEFT Expression { $$ = DtDoOperator ($1, OP_EXP_SHIFT_LEFT, $3);}
256*35786f68SRobert Mustacchi | Expression OP_EXP_GREATER Expression { $$ = DtDoOperator ($1, OP_EXP_GREATER, $3);}
257*35786f68SRobert Mustacchi | Expression OP_EXP_LESS Expression { $$ = DtDoOperator ($1, OP_EXP_LESS, $3);}
258*35786f68SRobert Mustacchi | Expression OP_EXP_GREATER_EQUAL Expression { $$ = DtDoOperator ($1, OP_EXP_GREATER_EQUAL, $3);}
259*35786f68SRobert Mustacchi | Expression OP_EXP_LESS_EQUAL Expression { $$ = DtDoOperator ($1, OP_EXP_LESS_EQUAL, $3);}
260*35786f68SRobert Mustacchi | Expression OP_EXP_EQUAL Expression { $$ = DtDoOperator ($1, OP_EXP_EQUAL, $3);}
261*35786f68SRobert Mustacchi | Expression OP_EXP_NOT_EQUAL Expression { $$ = DtDoOperator ($1, OP_EXP_NOT_EQUAL, $3);}
262*35786f68SRobert Mustacchi | Expression OP_EXP_AND Expression { $$ = DtDoOperator ($1, OP_EXP_AND, $3);}
263*35786f68SRobert Mustacchi | Expression OP_EXP_XOR Expression { $$ = DtDoOperator ($1, OP_EXP_XOR, $3);}
264*35786f68SRobert Mustacchi | Expression OP_EXP_OR Expression { $$ = DtDoOperator ($1, OP_EXP_OR, $3);}
265*35786f68SRobert Mustacchi | Expression OP_EXP_LOGICAL_AND Expression { $$ = DtDoOperator ($1, OP_EXP_LOGICAL_AND, $3);}
266*35786f68SRobert Mustacchi | Expression OP_EXP_LOGICAL_OR Expression { $$ = DtDoOperator ($1, OP_EXP_LOGICAL_OR, $3);}
267bc36eafdSMike Gerdts
268bc36eafdSMike Gerdts /* Parentheses: '(' Expression ')' */
269bc36eafdSMike Gerdts
270*35786f68SRobert Mustacchi | OP_EXP_PAREN_OPEN Expression
271*35786f68SRobert Mustacchi OP_EXP_PAREN_CLOSE { $$ = $2;}
272bc36eafdSMike Gerdts
273bc36eafdSMike Gerdts /* Label references (prefixed with $) */
274bc36eafdSMike Gerdts
275*35786f68SRobert Mustacchi | OP_EXP_LABEL { $$ = DtResolveLabel (DtParsertext);}
276*35786f68SRobert Mustacchi
277*35786f68SRobert Mustacchi /*
278*35786f68SRobert Mustacchi * All constants for the data table compiler are in hex, whether a (optional) 0x
279*35786f68SRobert Mustacchi * prefix is present or not. For example, these two input strings are equivalent:
280*35786f68SRobert Mustacchi * 1234
281*35786f68SRobert Mustacchi * 0x1234
282*35786f68SRobert Mustacchi */
283bc36eafdSMike Gerdts
284*35786f68SRobert Mustacchi /* Non-prefixed hex number */
285bc36eafdSMike Gerdts
286*35786f68SRobert Mustacchi | OP_EXP_NUMBER { $$ = DtDoConstant (DtParsertext);}
287bc36eafdSMike Gerdts
288bc36eafdSMike Gerdts /* Standard hex number (0x1234) */
289bc36eafdSMike Gerdts
290*35786f68SRobert Mustacchi | OP_EXP_HEX_NUMBER { $$ = DtDoConstant (DtParsertext);}
291bc36eafdSMike Gerdts
292*35786f68SRobert Mustacchi /* Possible TBD: Decimal number with prefix (0d1234) - Not supported this time */
293bc36eafdSMike Gerdts
294*35786f68SRobert Mustacchi | OP_EXP_DECIMAL_NUMBER { $$ = DtDoConstant (DtParsertext);}
295bc36eafdSMike Gerdts ;
296bc36eafdSMike Gerdts %%
297bc36eafdSMike Gerdts
298bc36eafdSMike Gerdts /*! [End] no source code translation !*/
299bc36eafdSMike Gerdts
300bc36eafdSMike Gerdts /*
301bc36eafdSMike Gerdts * Local support functions, including parser entry point
302bc36eafdSMike Gerdts */
303*35786f68SRobert Mustacchi #define PR_FIRST_PARSE_OPCODE OP_EXP_EOF
304bc36eafdSMike Gerdts #define PR_YYTNAME_START 3
305bc36eafdSMike Gerdts
306bc36eafdSMike Gerdts
307bc36eafdSMike Gerdts /******************************************************************************
308bc36eafdSMike Gerdts *
309bc36eafdSMike Gerdts * FUNCTION: DtParsererror
310bc36eafdSMike Gerdts *
311bc36eafdSMike Gerdts * PARAMETERS: Message - Parser-generated error message
312bc36eafdSMike Gerdts *
313bc36eafdSMike Gerdts * RETURN: None
314bc36eafdSMike Gerdts *
315bc36eafdSMike Gerdts * DESCRIPTION: Handler for parser errors
316bc36eafdSMike Gerdts *
317bc36eafdSMike Gerdts *****************************************************************************/
318bc36eafdSMike Gerdts
319bc36eafdSMike Gerdts void
320bc36eafdSMike Gerdts DtParsererror (
321bc36eafdSMike Gerdts char const *Message)
322bc36eafdSMike Gerdts {
323bc36eafdSMike Gerdts DtError (ASL_ERROR, ASL_MSG_SYNTAX,
324bc36eafdSMike Gerdts Gbl_CurrentField, (char *) Message);
325bc36eafdSMike Gerdts }
326bc36eafdSMike Gerdts
327bc36eafdSMike Gerdts
328bc36eafdSMike Gerdts /******************************************************************************
329bc36eafdSMike Gerdts *
330bc36eafdSMike Gerdts * FUNCTION: DtGetOpName
331bc36eafdSMike Gerdts *
332*35786f68SRobert Mustacchi * PARAMETERS: ParseOpcode - Parser token (OP_EXP_*)
333bc36eafdSMike Gerdts *
334bc36eafdSMike Gerdts * RETURN: Pointer to the opcode name
335bc36eafdSMike Gerdts *
336bc36eafdSMike Gerdts * DESCRIPTION: Get the ascii name of the parse opcode for debug output
337bc36eafdSMike Gerdts *
338bc36eafdSMike Gerdts *****************************************************************************/
339bc36eafdSMike Gerdts
340bc36eafdSMike Gerdts char *
DtGetOpName(UINT32 ParseOpcode)341bc36eafdSMike Gerdts DtGetOpName (
342bc36eafdSMike Gerdts UINT32 ParseOpcode)
343bc36eafdSMike Gerdts {
344bc36eafdSMike Gerdts #ifdef ASL_YYTNAME_START
345bc36eafdSMike Gerdts /*
346bc36eafdSMike Gerdts * First entries (PR_YYTNAME_START) in yytname are special reserved names.
347*35786f68SRobert Mustacchi * Ignore first 6 characters of name (OP_EXP_)
348bc36eafdSMike Gerdts */
349bc36eafdSMike Gerdts return ((char *) yytname
350bc36eafdSMike Gerdts [(ParseOpcode - PR_FIRST_PARSE_OPCODE) + PR_YYTNAME_START] + 6);
351bc36eafdSMike Gerdts #else
352bc36eafdSMike Gerdts return ("[Unknown parser generator]");
353bc36eafdSMike Gerdts #endif
354bc36eafdSMike Gerdts }
355bc36eafdSMike Gerdts
356bc36eafdSMike Gerdts
357bc36eafdSMike Gerdts /******************************************************************************
358bc36eafdSMike Gerdts *
359bc36eafdSMike Gerdts * FUNCTION: DtEvaluateExpression
360bc36eafdSMike Gerdts *
361bc36eafdSMike Gerdts * PARAMETERS: ExprString - Expression to be evaluated. Must be
362bc36eafdSMike Gerdts * terminated by either a newline or a NUL
363bc36eafdSMike Gerdts * string terminator
364bc36eafdSMike Gerdts *
365bc36eafdSMike Gerdts * RETURN: 64-bit value for the expression
366bc36eafdSMike Gerdts *
367bc36eafdSMike Gerdts * DESCRIPTION: Main entry point for the DT expression parser
368bc36eafdSMike Gerdts *
369bc36eafdSMike Gerdts *****************************************************************************/
370bc36eafdSMike Gerdts
371bc36eafdSMike Gerdts UINT64
DtEvaluateExpression(char * ExprString)372bc36eafdSMike Gerdts DtEvaluateExpression (
373bc36eafdSMike Gerdts char *ExprString)
374bc36eafdSMike Gerdts {
375bc36eafdSMike Gerdts
376bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT,
377bc36eafdSMike Gerdts "**** Input expression: %s (Base 16)\n", ExprString);
378bc36eafdSMike Gerdts
379bc36eafdSMike Gerdts /* Point lexer to the input string */
380bc36eafdSMike Gerdts
381bc36eafdSMike Gerdts if (DtInitLexer (ExprString))
382bc36eafdSMike Gerdts {
383bc36eafdSMike Gerdts DtError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL,
384bc36eafdSMike Gerdts Gbl_CurrentField, "Could not initialize lexer");
385bc36eafdSMike Gerdts return (0);
386bc36eafdSMike Gerdts }
387bc36eafdSMike Gerdts
388bc36eafdSMike Gerdts /* Parse/Evaluate the input string (value returned in DtParserResult) */
389bc36eafdSMike Gerdts
390bc36eafdSMike Gerdts DtParserparse ();
391bc36eafdSMike Gerdts DtTerminateLexer ();
392bc36eafdSMike Gerdts
393bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT,
394bc36eafdSMike Gerdts "**** Parser returned value: %u (%8.8X%8.8X)\n",
395bc36eafdSMike Gerdts (UINT32) DtParserResult, ACPI_FORMAT_UINT64 (DtParserResult));
396bc36eafdSMike Gerdts
397bc36eafdSMike Gerdts return (DtParserResult);
398bc36eafdSMike Gerdts }
399