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19934e0e IM |
1 | /* Support for generating ACPI tables and passing them to Guests |
2 | * | |
3 | * Copyright (C) 2015 Red Hat Inc | |
4 | * | |
5 | * Author: Michael S. Tsirkin <mst@redhat.com> | |
6 | * Author: Igor Mammedov <imammedo@redhat.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | ||
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | ||
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
c3bdc56c | 22 | #include <glib/gprintf.h> |
19934e0e IM |
23 | #include <stdio.h> |
24 | #include <stdarg.h> | |
25 | #include <assert.h> | |
26 | #include <stdbool.h> | |
eae8bded | 27 | #include <string.h> |
19934e0e | 28 | #include "hw/acpi/aml-build.h" |
0f2707e4 | 29 | #include "qemu/bswap.h" |
dc17ab1d | 30 | #include "qemu/bitops.h" |
658c2718 | 31 | #include "hw/acpi/bios-linker-loader.h" |
19934e0e | 32 | |
af59b35c | 33 | static GArray *build_alloc_array(void) |
19934e0e IM |
34 | { |
35 | return g_array_new(false, true /* clear */, 1); | |
36 | } | |
37 | ||
af59b35c | 38 | static void build_free_array(GArray *array) |
19934e0e IM |
39 | { |
40 | g_array_free(array, true); | |
41 | } | |
42 | ||
af59b35c | 43 | static void build_prepend_byte(GArray *array, uint8_t val) |
19934e0e IM |
44 | { |
45 | g_array_prepend_val(array, val); | |
46 | } | |
47 | ||
af59b35c | 48 | static void build_append_byte(GArray *array, uint8_t val) |
19934e0e IM |
49 | { |
50 | g_array_append_val(array, val); | |
51 | } | |
52 | ||
af59b35c | 53 | static void build_append_array(GArray *array, GArray *val) |
19934e0e IM |
54 | { |
55 | g_array_append_vals(array, val->data, val->len); | |
56 | } | |
57 | ||
58 | #define ACPI_NAMESEG_LEN 4 | |
59 | ||
eae8bded IM |
60 | static void |
61 | build_append_nameseg(GArray *array, const char *seg) | |
19934e0e | 62 | { |
19934e0e | 63 | int len; |
19934e0e | 64 | |
eae8bded | 65 | len = strlen(seg); |
19934e0e IM |
66 | assert(len <= ACPI_NAMESEG_LEN); |
67 | ||
eae8bded | 68 | g_array_append_vals(array, seg, len); |
19934e0e IM |
69 | /* Pad up to ACPI_NAMESEG_LEN characters if necessary. */ |
70 | g_array_append_vals(array, "____", ACPI_NAMESEG_LEN - len); | |
71 | } | |
72 | ||
c167e2e7 | 73 | static void GCC_FMT_ATTR(2, 0) |
eae8bded IM |
74 | build_append_namestringv(GArray *array, const char *format, va_list ap) |
75 | { | |
eae8bded | 76 | char *s; |
eae8bded IM |
77 | char **segs; |
78 | char **segs_iter; | |
79 | int seg_count = 0; | |
80 | ||
c3bdc56c | 81 | s = g_strdup_vprintf(format, ap); |
eae8bded IM |
82 | segs = g_strsplit(s, ".", 0); |
83 | g_free(s); | |
84 | ||
85 | /* count segments */ | |
86 | segs_iter = segs; | |
87 | while (*segs_iter) { | |
88 | ++segs_iter; | |
89 | ++seg_count; | |
90 | } | |
91 | /* | |
92 | * ACPI 5.0 spec: 20.2.2 Name Objects Encoding: | |
93 | * "SegCount can be from 1 to 255" | |
94 | */ | |
95 | assert(seg_count > 0 && seg_count <= 255); | |
96 | ||
97 | /* handle RootPath || PrefixPath */ | |
98 | s = *segs; | |
99 | while (*s == '\\' || *s == '^') { | |
100 | build_append_byte(array, *s); | |
101 | ++s; | |
102 | } | |
103 | ||
104 | switch (seg_count) { | |
105 | case 1: | |
106 | if (!*s) { | |
aea10cde | 107 | build_append_byte(array, 0x00); /* NullName */ |
eae8bded IM |
108 | } else { |
109 | build_append_nameseg(array, s); | |
110 | } | |
111 | break; | |
112 | ||
113 | case 2: | |
114 | build_append_byte(array, 0x2E); /* DualNamePrefix */ | |
115 | build_append_nameseg(array, s); | |
116 | build_append_nameseg(array, segs[1]); | |
117 | break; | |
118 | default: | |
119 | build_append_byte(array, 0x2F); /* MultiNamePrefix */ | |
120 | build_append_byte(array, seg_count); | |
121 | ||
122 | /* handle the 1st segment manually due to prefix/root path */ | |
123 | build_append_nameseg(array, s); | |
124 | ||
125 | /* add the rest of segments */ | |
126 | segs_iter = segs + 1; | |
127 | while (*segs_iter) { | |
128 | build_append_nameseg(array, *segs_iter); | |
129 | ++segs_iter; | |
130 | } | |
131 | break; | |
132 | } | |
133 | g_strfreev(segs); | |
134 | } | |
135 | ||
79272661 | 136 | GCC_FMT_ATTR(2, 3) |
af59b35c | 137 | static void build_append_namestring(GArray *array, const char *format, ...) |
eae8bded IM |
138 | { |
139 | va_list ap; | |
140 | ||
141 | va_start(ap, format); | |
142 | build_append_namestringv(array, format, ap); | |
143 | va_end(ap); | |
144 | } | |
145 | ||
19934e0e IM |
146 | /* 5.4 Definition Block Encoding */ |
147 | enum { | |
148 | PACKAGE_LENGTH_1BYTE_SHIFT = 6, /* Up to 63 - use extra 2 bits. */ | |
149 | PACKAGE_LENGTH_2BYTE_SHIFT = 4, | |
150 | PACKAGE_LENGTH_3BYTE_SHIFT = 12, | |
151 | PACKAGE_LENGTH_4BYTE_SHIFT = 20, | |
152 | }; | |
153 | ||
af59b35c | 154 | static void |
19fff2d4 | 155 | build_prepend_package_length(GArray *package, unsigned length, bool incl_self) |
19934e0e IM |
156 | { |
157 | uint8_t byte; | |
19934e0e IM |
158 | unsigned length_bytes; |
159 | ||
160 | if (length + 1 < (1 << PACKAGE_LENGTH_1BYTE_SHIFT)) { | |
161 | length_bytes = 1; | |
162 | } else if (length + 2 < (1 << PACKAGE_LENGTH_3BYTE_SHIFT)) { | |
163 | length_bytes = 2; | |
164 | } else if (length + 3 < (1 << PACKAGE_LENGTH_4BYTE_SHIFT)) { | |
165 | length_bytes = 3; | |
166 | } else { | |
167 | length_bytes = 4; | |
168 | } | |
169 | ||
19fff2d4 IM |
170 | /* |
171 | * NamedField uses PkgLength encoding but it doesn't include length | |
172 | * of PkgLength itself. | |
173 | */ | |
174 | if (incl_self) { | |
175 | /* | |
176 | * PkgLength is the length of the inclusive length of the data | |
177 | * and PkgLength's length itself when used for terms with | |
178 | * explitit length. | |
179 | */ | |
180 | length += length_bytes; | |
181 | } | |
19934e0e IM |
182 | |
183 | switch (length_bytes) { | |
184 | case 1: | |
185 | byte = length; | |
186 | build_prepend_byte(package, byte); | |
187 | return; | |
188 | case 4: | |
189 | byte = length >> PACKAGE_LENGTH_4BYTE_SHIFT; | |
190 | build_prepend_byte(package, byte); | |
191 | length &= (1 << PACKAGE_LENGTH_4BYTE_SHIFT) - 1; | |
192 | /* fall through */ | |
193 | case 3: | |
194 | byte = length >> PACKAGE_LENGTH_3BYTE_SHIFT; | |
195 | build_prepend_byte(package, byte); | |
196 | length &= (1 << PACKAGE_LENGTH_3BYTE_SHIFT) - 1; | |
197 | /* fall through */ | |
198 | case 2: | |
199 | byte = length >> PACKAGE_LENGTH_2BYTE_SHIFT; | |
200 | build_prepend_byte(package, byte); | |
201 | length &= (1 << PACKAGE_LENGTH_2BYTE_SHIFT) - 1; | |
202 | /* fall through */ | |
203 | } | |
204 | /* | |
205 | * Most significant two bits of byte zero indicate how many following bytes | |
206 | * are in PkgLength encoding. | |
207 | */ | |
208 | byte = ((length_bytes - 1) << PACKAGE_LENGTH_1BYTE_SHIFT) | length; | |
209 | build_prepend_byte(package, byte); | |
210 | } | |
211 | ||
214ae59f IM |
212 | static void |
213 | build_append_pkg_length(GArray *array, unsigned length, bool incl_self) | |
214 | { | |
215 | GArray *tmp = build_alloc_array(); | |
216 | ||
217 | build_prepend_package_length(tmp, length, incl_self); | |
218 | build_append_array(array, tmp); | |
219 | build_free_array(tmp); | |
220 | } | |
221 | ||
af59b35c | 222 | static void build_package(GArray *package, uint8_t op) |
19934e0e | 223 | { |
19fff2d4 | 224 | build_prepend_package_length(package, package->len, true); |
19934e0e IM |
225 | build_prepend_byte(package, op); |
226 | } | |
227 | ||
af59b35c | 228 | static void build_extop_package(GArray *package, uint8_t op) |
19934e0e | 229 | { |
661875e9 | 230 | build_package(package, op); |
19934e0e IM |
231 | build_prepend_byte(package, 0x5B); /* ExtOpPrefix */ |
232 | } | |
233 | ||
295a515d | 234 | static void build_append_int_noprefix(GArray *table, uint64_t value, int size) |
19934e0e | 235 | { |
19934e0e IM |
236 | int i; |
237 | ||
19934e0e IM |
238 | for (i = 0; i < size; ++i) { |
239 | build_append_byte(table, value & 0xFF); | |
240 | value = value >> 8; | |
241 | } | |
242 | } | |
243 | ||
af59b35c | 244 | static void build_append_int(GArray *table, uint64_t value) |
19934e0e IM |
245 | { |
246 | if (value == 0x00) { | |
247 | build_append_byte(table, 0x00); /* ZeroOp */ | |
248 | } else if (value == 0x01) { | |
249 | build_append_byte(table, 0x01); /* OneOp */ | |
250 | } else if (value <= 0xFF) { | |
295a515d IM |
251 | build_append_byte(table, 0x0A); /* BytePrefix */ |
252 | build_append_int_noprefix(table, value, 1); | |
19934e0e | 253 | } else if (value <= 0xFFFF) { |
295a515d IM |
254 | build_append_byte(table, 0x0B); /* WordPrefix */ |
255 | build_append_int_noprefix(table, value, 2); | |
256 | } else if (value <= 0xFFFFFFFF) { | |
257 | build_append_byte(table, 0x0C); /* DWordPrefix */ | |
258 | build_append_int_noprefix(table, value, 4); | |
19934e0e | 259 | } else { |
295a515d IM |
260 | build_append_byte(table, 0x0E); /* QWordPrefix */ |
261 | build_append_int_noprefix(table, value, 8); | |
19934e0e IM |
262 | } |
263 | } | |
0f2707e4 IM |
264 | |
265 | static GPtrArray *alloc_list; | |
266 | ||
267 | static Aml *aml_alloc(void) | |
268 | { | |
269 | Aml *var = g_new0(typeof(*var), 1); | |
270 | ||
271 | g_ptr_array_add(alloc_list, var); | |
272 | var->block_flags = AML_NO_OPCODE; | |
273 | var->buf = build_alloc_array(); | |
274 | return var; | |
275 | } | |
276 | ||
3c054bd5 IM |
277 | static Aml *aml_opcode(uint8_t op) |
278 | { | |
279 | Aml *var = aml_alloc(); | |
280 | ||
281 | var->op = op; | |
282 | var->block_flags = AML_OPCODE; | |
283 | return var; | |
284 | } | |
285 | ||
2ef7c27b IM |
286 | static Aml *aml_bundle(uint8_t op, AmlBlockFlags flags) |
287 | { | |
288 | Aml *var = aml_alloc(); | |
289 | ||
290 | var->op = op; | |
291 | var->block_flags = flags; | |
292 | return var; | |
293 | } | |
294 | ||
2e5feadb | 295 | static void aml_free(gpointer data, gpointer user_data) |
0f2707e4 IM |
296 | { |
297 | Aml *var = data; | |
298 | build_free_array(var->buf); | |
299 | } | |
300 | ||
301 | Aml *init_aml_allocator(void) | |
302 | { | |
303 | Aml *var; | |
304 | ||
305 | assert(!alloc_list); | |
2e5feadb | 306 | alloc_list = g_ptr_array_new(); |
0f2707e4 IM |
307 | var = aml_alloc(); |
308 | return var; | |
309 | } | |
310 | ||
311 | void free_aml_allocator(void) | |
312 | { | |
2e5feadb | 313 | g_ptr_array_foreach(alloc_list, aml_free, NULL); |
0f2707e4 IM |
314 | g_ptr_array_free(alloc_list, true); |
315 | alloc_list = 0; | |
316 | } | |
317 | ||
318 | /* pack data with DefBuffer encoding */ | |
319 | static void build_buffer(GArray *array, uint8_t op) | |
320 | { | |
321 | GArray *data = build_alloc_array(); | |
322 | ||
323 | build_append_int(data, array->len); | |
324 | g_array_prepend_vals(array, data->data, data->len); | |
325 | build_free_array(data); | |
326 | build_package(array, op); | |
327 | } | |
328 | ||
329 | void aml_append(Aml *parent_ctx, Aml *child) | |
330 | { | |
7d433b0d MT |
331 | GArray *buf = build_alloc_array(); |
332 | build_append_array(buf, child->buf); | |
333 | ||
0f2707e4 IM |
334 | switch (child->block_flags) { |
335 | case AML_OPCODE: | |
336 | build_append_byte(parent_ctx->buf, child->op); | |
337 | break; | |
338 | case AML_EXT_PACKAGE: | |
7d433b0d | 339 | build_extop_package(buf, child->op); |
0f2707e4 IM |
340 | break; |
341 | case AML_PACKAGE: | |
7d433b0d | 342 | build_package(buf, child->op); |
0f2707e4 IM |
343 | break; |
344 | case AML_RES_TEMPLATE: | |
7d433b0d | 345 | build_append_byte(buf, 0x79); /* EndTag */ |
0f2707e4 IM |
346 | /* |
347 | * checksum operations are treated as succeeded if checksum | |
348 | * field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag] | |
349 | */ | |
7d433b0d | 350 | build_append_byte(buf, 0); |
0f2707e4 IM |
351 | /* fall through, to pack resources in buffer */ |
352 | case AML_BUFFER: | |
7d433b0d | 353 | build_buffer(buf, child->op); |
0f2707e4 IM |
354 | break; |
355 | case AML_NO_OPCODE: | |
356 | break; | |
357 | default: | |
358 | assert(0); | |
359 | break; | |
360 | } | |
7d433b0d MT |
361 | build_append_array(parent_ctx->buf, buf); |
362 | build_free_array(buf); | |
0f2707e4 | 363 | } |
2ef7c27b IM |
364 | |
365 | /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */ | |
366 | Aml *aml_scope(const char *name_format, ...) | |
367 | { | |
368 | va_list ap; | |
369 | Aml *var = aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE); | |
370 | va_start(ap, name_format); | |
371 | build_append_namestringv(var->buf, name_format, ap); | |
372 | va_end(ap); | |
373 | return var; | |
374 | } | |
be06ebd0 | 375 | |
b25af5ad IM |
376 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefReturn */ |
377 | Aml *aml_return(Aml *val) | |
378 | { | |
379 | Aml *var = aml_opcode(0xA4 /* ReturnOp */); | |
380 | aml_append(var, val); | |
381 | return var; | |
382 | } | |
383 | ||
295a515d IM |
384 | /* |
385 | * ACPI 1.0b: 16.2.3 Data Objects Encoding: | |
386 | * encodes: ByteConst, WordConst, DWordConst, QWordConst, ZeroOp, OneOp | |
387 | */ | |
388 | Aml *aml_int(const uint64_t val) | |
389 | { | |
390 | Aml *var = aml_alloc(); | |
391 | build_append_int(var->buf, val); | |
392 | return var; | |
393 | } | |
394 | ||
3c054bd5 IM |
395 | /* |
396 | * helper to construct NameString, which returns Aml object | |
397 | * for using with aml_append or other aml_* terms | |
398 | */ | |
399 | Aml *aml_name(const char *name_format, ...) | |
400 | { | |
401 | va_list ap; | |
402 | Aml *var = aml_alloc(); | |
403 | va_start(ap, name_format); | |
404 | build_append_namestringv(var->buf, name_format, ap); | |
405 | va_end(ap); | |
406 | return var; | |
407 | } | |
408 | ||
409 | /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefName */ | |
410 | Aml *aml_name_decl(const char *name, Aml *val) | |
411 | { | |
412 | Aml *var = aml_opcode(0x08 /* NameOp */); | |
413 | build_append_namestring(var->buf, "%s", name); | |
414 | aml_append(var, val); | |
415 | return var; | |
416 | } | |
417 | ||
7193f3a6 IM |
418 | /* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */ |
419 | Aml *aml_arg(int pos) | |
420 | { | |
421 | Aml *var; | |
422 | uint8_t op = 0x68 /* ARG0 op */ + pos; | |
423 | ||
424 | assert(pos <= 6); | |
425 | var = aml_opcode(op); | |
426 | return var; | |
427 | } | |
428 | ||
c263b3f7 IM |
429 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */ |
430 | Aml *aml_store(Aml *val, Aml *target) | |
431 | { | |
432 | Aml *var = aml_opcode(0x70 /* StoreOp */); | |
433 | aml_append(var, val); | |
434 | aml_append(var, target); | |
435 | return var; | |
436 | } | |
437 | ||
926f5aae IM |
438 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAnd */ |
439 | Aml *aml_and(Aml *arg1, Aml *arg2) | |
440 | { | |
441 | Aml *var = aml_opcode(0x7B /* AndOp */); | |
442 | aml_append(var, arg1); | |
443 | aml_append(var, arg2); | |
aea10cde | 444 | build_append_byte(var->buf, 0x00 /* NullNameOp */); |
926f5aae IM |
445 | return var; |
446 | } | |
447 | ||
922cc882 SZ |
448 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefOr */ |
449 | Aml *aml_or(Aml *arg1, Aml *arg2) | |
450 | { | |
451 | Aml *var = aml_opcode(0x7D /* OrOp */); | |
452 | aml_append(var, arg1); | |
453 | aml_append(var, arg2); | |
454 | build_append_byte(var->buf, 0x00 /* NullNameOp */); | |
455 | return var; | |
456 | } | |
457 | ||
a57ddddd MA |
458 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */ |
459 | Aml *aml_shiftleft(Aml *arg1, Aml *count) | |
460 | { | |
461 | Aml *var = aml_opcode(0x79 /* ShiftLeftOp */); | |
462 | aml_append(var, arg1); | |
463 | aml_append(var, count); | |
464 | build_append_byte(var->buf, 0x00); /* NullNameOp */ | |
465 | return var; | |
466 | } | |
467 | ||
f7bd7b8e MA |
468 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */ |
469 | Aml *aml_shiftright(Aml *arg1, Aml *count) | |
470 | { | |
471 | Aml *var = aml_opcode(0x7A /* ShiftRightOp */); | |
472 | aml_append(var, arg1); | |
473 | aml_append(var, count); | |
474 | build_append_byte(var->buf, 0x00); /* NullNameOp */ | |
475 | return var; | |
476 | } | |
477 | ||
96396e28 MA |
478 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */ |
479 | Aml *aml_lless(Aml *arg1, Aml *arg2) | |
480 | { | |
481 | Aml *var = aml_opcode(0x95 /* LLessOp */); | |
482 | aml_append(var, arg1); | |
483 | aml_append(var, arg2); | |
484 | return var; | |
485 | } | |
486 | ||
c08cf070 MA |
487 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */ |
488 | Aml *aml_add(Aml *arg1, Aml *arg2) | |
489 | { | |
490 | Aml *var = aml_opcode(0x72 /* AddOp */); | |
491 | aml_append(var, arg1); | |
492 | aml_append(var, arg2); | |
493 | build_append_byte(var->buf, 0x00 /* NullNameOp */); | |
494 | return var; | |
495 | } | |
496 | ||
af39d536 MA |
497 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */ |
498 | Aml *aml_increment(Aml *arg) | |
499 | { | |
500 | Aml *var = aml_opcode(0x75 /* IncrementOp */); | |
501 | aml_append(var, arg); | |
502 | return var; | |
503 | } | |
504 | ||
928b8996 MA |
505 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */ |
506 | Aml *aml_index(Aml *arg1, Aml *idx) | |
507 | { | |
508 | Aml *var = aml_opcode(0x88 /* IndexOp */); | |
509 | aml_append(var, arg1); | |
510 | aml_append(var, idx); | |
511 | build_append_byte(var->buf, 0x00 /* NullNameOp */); | |
512 | return var; | |
513 | } | |
514 | ||
34189453 IM |
515 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */ |
516 | Aml *aml_notify(Aml *arg1, Aml *arg2) | |
517 | { | |
518 | Aml *var = aml_opcode(0x86 /* NotifyOp */); | |
519 | aml_append(var, arg1); | |
520 | aml_append(var, arg2); | |
521 | return var; | |
522 | } | |
523 | ||
3f3992b7 IM |
524 | /* helper to call method with 1 argument */ |
525 | Aml *aml_call1(const char *method, Aml *arg1) | |
526 | { | |
527 | Aml *var = aml_alloc(); | |
528 | build_append_namestring(var->buf, "%s", method); | |
529 | aml_append(var, arg1); | |
530 | return var; | |
531 | } | |
532 | ||
533 | /* helper to call method with 2 arguments */ | |
534 | Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2) | |
535 | { | |
536 | Aml *var = aml_alloc(); | |
537 | build_append_namestring(var->buf, "%s", method); | |
538 | aml_append(var, arg1); | |
539 | aml_append(var, arg2); | |
540 | return var; | |
541 | } | |
542 | ||
543 | /* helper to call method with 3 arguments */ | |
544 | Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3) | |
545 | { | |
546 | Aml *var = aml_alloc(); | |
547 | build_append_namestring(var->buf, "%s", method); | |
548 | aml_append(var, arg1); | |
549 | aml_append(var, arg2); | |
550 | aml_append(var, arg3); | |
551 | return var; | |
552 | } | |
553 | ||
554 | /* helper to call method with 4 arguments */ | |
555 | Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4) | |
556 | { | |
557 | Aml *var = aml_alloc(); | |
558 | build_append_namestring(var->buf, "%s", method); | |
559 | aml_append(var, arg1); | |
560 | aml_append(var, arg2); | |
561 | aml_append(var, arg3); | |
562 | aml_append(var, arg4); | |
563 | return var; | |
564 | } | |
565 | ||
dc17ab1d SZ |
566 | /* |
567 | * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor | |
568 | * (Type 1, Large Item Name 0x6) | |
569 | */ | |
570 | Aml *aml_memory32_fixed(uint32_t addr, uint32_t size, | |
571 | AmlReadAndWrite read_and_write) | |
572 | { | |
573 | Aml *var = aml_alloc(); | |
574 | build_append_byte(var->buf, 0x86); /* Memory32Fixed Resource Descriptor */ | |
575 | build_append_byte(var->buf, 9); /* Length, bits[7:0] value = 9 */ | |
576 | build_append_byte(var->buf, 0); /* Length, bits[15:8] value = 0 */ | |
577 | build_append_byte(var->buf, read_and_write); /* Write status, 1 rw 0 ro */ | |
578 | ||
579 | /* Range base address */ | |
580 | build_append_byte(var->buf, extract32(addr, 0, 8)); /* bits[7:0] */ | |
581 | build_append_byte(var->buf, extract32(addr, 8, 8)); /* bits[15:8] */ | |
582 | build_append_byte(var->buf, extract32(addr, 16, 8)); /* bits[23:16] */ | |
583 | build_append_byte(var->buf, extract32(addr, 24, 8)); /* bits[31:24] */ | |
584 | ||
585 | /* Range length */ | |
586 | build_append_byte(var->buf, extract32(size, 0, 8)); /* bits[7:0] */ | |
587 | build_append_byte(var->buf, extract32(size, 8, 8)); /* bits[15:8] */ | |
588 | build_append_byte(var->buf, extract32(size, 16, 8)); /* bits[23:16] */ | |
589 | build_append_byte(var->buf, extract32(size, 24, 8)); /* bits[31:24] */ | |
590 | return var; | |
591 | } | |
592 | ||
205d1d1c SZ |
593 | /* |
594 | * ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor | |
595 | * Type 1, Large Item Name 0x9 | |
596 | */ | |
597 | Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro, | |
598 | AmlLevelAndEdge level_and_edge, | |
599 | AmlActiveHighAndLow high_and_low, AmlShared shared, | |
600 | uint32_t irq) | |
601 | { | |
602 | Aml *var = aml_alloc(); | |
603 | uint8_t irq_flags = con_and_pro | (level_and_edge << 1) | |
604 | | (high_and_low << 2) | (shared << 3); | |
605 | ||
606 | build_append_byte(var->buf, 0x89); /* Extended irq descriptor */ | |
607 | build_append_byte(var->buf, 6); /* Length, bits[7:0] minimum value = 6 */ | |
608 | build_append_byte(var->buf, 0); /* Length, bits[15:8] minimum value = 0 */ | |
609 | build_append_byte(var->buf, irq_flags); /* Interrupt Vector Information. */ | |
610 | build_append_byte(var->buf, 0x01); /* Interrupt table length = 1 */ | |
611 | ||
612 | /* Interrupt Number */ | |
613 | build_append_byte(var->buf, extract32(irq, 0, 8)); /* bits[7:0] */ | |
614 | build_append_byte(var->buf, extract32(irq, 8, 8)); /* bits[15:8] */ | |
615 | build_append_byte(var->buf, extract32(irq, 16, 8)); /* bits[23:16] */ | |
616 | build_append_byte(var->buf, extract32(irq, 24, 8)); /* bits[31:24] */ | |
617 | return var; | |
618 | } | |
619 | ||
52fa397c IM |
620 | /* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */ |
621 | Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base, | |
622 | uint8_t aln, uint8_t len) | |
623 | { | |
624 | Aml *var = aml_alloc(); | |
625 | build_append_byte(var->buf, 0x47); /* IO port descriptor */ | |
626 | build_append_byte(var->buf, dec); | |
627 | build_append_byte(var->buf, min_base & 0xff); | |
628 | build_append_byte(var->buf, (min_base >> 8) & 0xff); | |
629 | build_append_byte(var->buf, max_base & 0xff); | |
630 | build_append_byte(var->buf, (max_base >> 8) & 0xff); | |
631 | build_append_byte(var->buf, aln); | |
632 | build_append_byte(var->buf, len); | |
633 | return var; | |
634 | } | |
635 | ||
70560453 IM |
636 | /* |
637 | * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor | |
638 | * | |
639 | * More verbose description at: | |
640 | * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro) | |
641 | * 6.4.2.1 IRQ Descriptor | |
642 | */ | |
643 | Aml *aml_irq_no_flags(uint8_t irq) | |
644 | { | |
645 | uint16_t irq_mask; | |
646 | Aml *var = aml_alloc(); | |
647 | ||
648 | assert(irq < 16); | |
649 | build_append_byte(var->buf, 0x22); /* IRQ descriptor 2 byte form */ | |
650 | ||
651 | irq_mask = 1U << irq; | |
652 | build_append_byte(var->buf, irq_mask & 0xFF); /* IRQ mask bits[7:0] */ | |
653 | build_append_byte(var->buf, irq_mask >> 8); /* IRQ mask bits[15:8] */ | |
654 | return var; | |
655 | } | |
656 | ||
ea7df04a SZ |
657 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */ |
658 | Aml *aml_lnot(Aml *arg) | |
659 | { | |
660 | Aml *var = aml_opcode(0x92 /* LNotOp */); | |
661 | aml_append(var, arg); | |
662 | return var; | |
663 | } | |
664 | ||
15e44e56 IM |
665 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */ |
666 | Aml *aml_equal(Aml *arg1, Aml *arg2) | |
667 | { | |
668 | Aml *var = aml_opcode(0x93 /* LequalOp */); | |
669 | aml_append(var, arg1); | |
670 | aml_append(var, arg2); | |
15e44e56 IM |
671 | return var; |
672 | } | |
673 | ||
32acac9e IM |
674 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */ |
675 | Aml *aml_if(Aml *predicate) | |
676 | { | |
677 | Aml *var = aml_bundle(0xA0 /* IfOp */, AML_PACKAGE); | |
678 | aml_append(var, predicate); | |
679 | return var; | |
680 | } | |
681 | ||
467b07df SZ |
682 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */ |
683 | Aml *aml_else(void) | |
684 | { | |
685 | Aml *var = aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE); | |
686 | return var; | |
687 | } | |
688 | ||
ea2407d7 IM |
689 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */ |
690 | Aml *aml_method(const char *name, int arg_count) | |
691 | { | |
692 | Aml *var = aml_bundle(0x14 /* MethodOp */, AML_PACKAGE); | |
693 | build_append_namestring(var->buf, "%s", name); | |
694 | build_append_byte(var->buf, arg_count); /* MethodFlags: ArgCount */ | |
695 | return var; | |
696 | } | |
697 | ||
be06ebd0 IM |
698 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */ |
699 | Aml *aml_device(const char *name_format, ...) | |
700 | { | |
701 | va_list ap; | |
702 | Aml *var = aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE); | |
703 | va_start(ap, name_format); | |
704 | build_append_namestringv(var->buf, name_format, ap); | |
705 | va_end(ap); | |
706 | return var; | |
707 | } | |
3bfa74a7 | 708 | |
ad4a80bc IM |
709 | /* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */ |
710 | Aml *aml_resource_template(void) | |
711 | { | |
712 | /* ResourceTemplate is a buffer of Resources with EndTag at the end */ | |
713 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE); | |
714 | return var; | |
715 | } | |
716 | ||
ed8b5847 SZ |
717 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer |
718 | * Pass byte_list as NULL to request uninitialized buffer to reserve space. | |
719 | */ | |
720 | Aml *aml_buffer(int buffer_size, uint8_t *byte_list) | |
04b8da54 | 721 | { |
ed8b5847 | 722 | int i; |
04b8da54 | 723 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); |
ed8b5847 SZ |
724 | |
725 | for (i = 0; i < buffer_size; i++) { | |
726 | if (byte_list == NULL) { | |
727 | build_append_byte(var->buf, 0x0); | |
728 | } else { | |
729 | build_append_byte(var->buf, byte_list[i]); | |
730 | } | |
731 | } | |
732 | ||
04b8da54 IM |
733 | return var; |
734 | } | |
735 | ||
3bfa74a7 IM |
736 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */ |
737 | Aml *aml_package(uint8_t num_elements) | |
738 | { | |
739 | Aml *var = aml_bundle(0x12 /* PackageOp */, AML_PACKAGE); | |
740 | build_append_byte(var->buf, num_elements); | |
741 | return var; | |
742 | } | |
31127938 IM |
743 | |
744 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */ | |
745 | Aml *aml_operation_region(const char *name, AmlRegionSpace rs, | |
746 | uint32_t offset, uint32_t len) | |
747 | { | |
748 | Aml *var = aml_alloc(); | |
749 | build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */ | |
750 | build_append_byte(var->buf, 0x80); /* OpRegionOp */ | |
751 | build_append_namestring(var->buf, "%s", name); | |
752 | build_append_byte(var->buf, rs); | |
753 | build_append_int(var->buf, offset); | |
754 | build_append_int(var->buf, len); | |
755 | return var; | |
756 | } | |
214ae59f IM |
757 | |
758 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */ | |
759 | Aml *aml_named_field(const char *name, unsigned length) | |
760 | { | |
761 | Aml *var = aml_alloc(); | |
762 | build_append_nameseg(var->buf, name); | |
763 | build_append_pkg_length(var->buf, length, false); | |
764 | return var; | |
765 | } | |
766 | ||
e2ea299b IM |
767 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */ |
768 | Aml *aml_reserved_field(unsigned length) | |
769 | { | |
770 | Aml *var = aml_alloc(); | |
771 | /* ReservedField := 0x00 PkgLength */ | |
772 | build_append_byte(var->buf, 0x00); | |
773 | build_append_pkg_length(var->buf, length, false); | |
774 | return var; | |
775 | } | |
776 | ||
214ae59f | 777 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */ |
af509897 | 778 | Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule) |
214ae59f IM |
779 | { |
780 | Aml *var = aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE); | |
af509897 ZG |
781 | uint8_t flags = rule << 5 | type; |
782 | ||
214ae59f IM |
783 | build_append_namestring(var->buf, "%s", name); |
784 | build_append_byte(var->buf, flags); | |
785 | return var; | |
786 | } | |
b8a5d689 | 787 | |
ed8176a3 SZ |
788 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */ |
789 | Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name) | |
790 | { | |
791 | Aml *var = aml_alloc(); | |
792 | build_append_byte(var->buf, 0x8A); /* CreateDWordFieldOp */ | |
793 | aml_append(var, srcbuf); | |
794 | aml_append(var, index); | |
795 | build_append_namestring(var->buf, "%s", name); | |
796 | return var; | |
797 | } | |
798 | ||
d5e5830f IM |
799 | /* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */ |
800 | Aml *aml_string(const char *name_format, ...) | |
801 | { | |
802 | Aml *var = aml_opcode(0x0D /* StringPrefix */); | |
c3bdc56c | 803 | va_list ap; |
d5e5830f IM |
804 | char *s; |
805 | int len; | |
806 | ||
807 | va_start(ap, name_format); | |
c3bdc56c | 808 | len = g_vasprintf(&s, name_format, ap); |
d5e5830f IM |
809 | va_end(ap); |
810 | ||
c3bdc56c | 811 | g_array_append_vals(var->buf, s, len + 1); |
d5e5830f IM |
812 | g_free(s); |
813 | ||
814 | return var; | |
815 | } | |
816 | ||
b8a5d689 IM |
817 | /* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */ |
818 | Aml *aml_local(int num) | |
819 | { | |
820 | Aml *var; | |
821 | uint8_t op = 0x60 /* Local0Op */ + num; | |
822 | ||
823 | assert(num <= 7); | |
824 | var = aml_opcode(op); | |
825 | return var; | |
826 | } | |
a678508e IM |
827 | |
828 | /* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */ | |
829 | Aml *aml_varpackage(uint32_t num_elements) | |
830 | { | |
831 | Aml *var = aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE); | |
832 | build_append_int(var->buf, num_elements); | |
833 | return var; | |
834 | } | |
3dd15643 IM |
835 | |
836 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */ | |
837 | Aml *aml_processor(uint8_t proc_id, uint32_t pblk_addr, uint8_t pblk_len, | |
838 | const char *name_format, ...) | |
839 | { | |
840 | va_list ap; | |
841 | Aml *var = aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE); | |
842 | va_start(ap, name_format); | |
843 | build_append_namestringv(var->buf, name_format, ap); | |
844 | va_end(ap); | |
845 | build_append_byte(var->buf, proc_id); /* ProcID */ | |
846 | build_append_int_noprefix(var->buf, pblk_addr, sizeof(pblk_addr)); | |
847 | build_append_byte(var->buf, pblk_len); /* PblkLen */ | |
848 | return var; | |
849 | } | |
a7891dac IM |
850 | |
851 | static uint8_t Hex2Digit(char c) | |
852 | { | |
853 | if (c >= 'A') { | |
854 | return c - 'A' + 10; | |
855 | } | |
856 | ||
857 | return c - '0'; | |
858 | } | |
859 | ||
860 | /* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */ | |
861 | Aml *aml_eisaid(const char *str) | |
862 | { | |
863 | Aml *var = aml_alloc(); | |
864 | uint32_t id; | |
865 | ||
866 | g_assert(strlen(str) == 7); | |
867 | id = (str[0] - 0x40) << 26 | | |
868 | (str[1] - 0x40) << 21 | | |
869 | (str[2] - 0x40) << 16 | | |
870 | Hex2Digit(str[3]) << 12 | | |
871 | Hex2Digit(str[4]) << 8 | | |
872 | Hex2Digit(str[5]) << 4 | | |
873 | Hex2Digit(str[6]); | |
874 | ||
875 | build_append_byte(var->buf, 0x0C); /* DWordPrefix */ | |
876 | build_append_int_noprefix(var->buf, bswap32(id), sizeof(id)); | |
877 | return var; | |
878 | } | |
6ece7053 IM |
879 | |
880 | /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */ | |
881 | static Aml *aml_as_desc_header(AmlResourceType type, AmlMinFixed min_fixed, | |
882 | AmlMaxFixed max_fixed, AmlDecode dec, | |
883 | uint8_t type_flags) | |
884 | { | |
885 | uint8_t flags = max_fixed | min_fixed | dec; | |
886 | Aml *var = aml_alloc(); | |
887 | ||
888 | build_append_byte(var->buf, type); | |
889 | build_append_byte(var->buf, flags); | |
890 | build_append_byte(var->buf, type_flags); /* Type Specific Flags */ | |
891 | return var; | |
892 | } | |
893 | ||
894 | /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */ | |
895 | static Aml *aml_word_as_desc(AmlResourceType type, AmlMinFixed min_fixed, | |
896 | AmlMaxFixed max_fixed, AmlDecode dec, | |
897 | uint16_t addr_gran, uint16_t addr_min, | |
898 | uint16_t addr_max, uint16_t addr_trans, | |
899 | uint16_t len, uint8_t type_flags) | |
900 | { | |
901 | Aml *var = aml_alloc(); | |
902 | ||
903 | build_append_byte(var->buf, 0x88); /* Word Address Space Descriptor */ | |
904 | /* minimum length since we do not encode optional fields */ | |
905 | build_append_byte(var->buf, 0x0D); | |
906 | build_append_byte(var->buf, 0x0); | |
907 | ||
908 | aml_append(var, | |
909 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); | |
910 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); | |
911 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); | |
912 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); | |
913 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); | |
914 | build_append_int_noprefix(var->buf, len, sizeof(len)); | |
915 | return var; | |
916 | } | |
917 | ||
918 | /* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */ | |
919 | static Aml *aml_dword_as_desc(AmlResourceType type, AmlMinFixed min_fixed, | |
920 | AmlMaxFixed max_fixed, AmlDecode dec, | |
921 | uint32_t addr_gran, uint32_t addr_min, | |
922 | uint32_t addr_max, uint32_t addr_trans, | |
923 | uint32_t len, uint8_t type_flags) | |
924 | { | |
925 | Aml *var = aml_alloc(); | |
926 | ||
927 | build_append_byte(var->buf, 0x87); /* DWord Address Space Descriptor */ | |
928 | /* minimum length since we do not encode optional fields */ | |
929 | build_append_byte(var->buf, 23); | |
930 | build_append_byte(var->buf, 0x0); | |
931 | ||
932 | ||
933 | aml_append(var, | |
934 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); | |
935 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); | |
936 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); | |
937 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); | |
938 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); | |
939 | build_append_int_noprefix(var->buf, len, sizeof(len)); | |
940 | return var; | |
941 | } | |
942 | ||
943 | /* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */ | |
944 | static Aml *aml_qword_as_desc(AmlResourceType type, AmlMinFixed min_fixed, | |
945 | AmlMaxFixed max_fixed, AmlDecode dec, | |
946 | uint64_t addr_gran, uint64_t addr_min, | |
947 | uint64_t addr_max, uint64_t addr_trans, | |
948 | uint64_t len, uint8_t type_flags) | |
949 | { | |
950 | Aml *var = aml_alloc(); | |
951 | ||
952 | build_append_byte(var->buf, 0x8A); /* QWord Address Space Descriptor */ | |
953 | /* minimum length since we do not encode optional fields */ | |
954 | build_append_byte(var->buf, 0x2B); | |
955 | build_append_byte(var->buf, 0x0); | |
956 | ||
957 | aml_append(var, | |
958 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); | |
959 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); | |
960 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); | |
961 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); | |
962 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); | |
963 | build_append_int_noprefix(var->buf, len, sizeof(len)); | |
964 | return var; | |
965 | } | |
966 | ||
967 | /* | |
968 | * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor | |
969 | * | |
970 | * More verbose description at: | |
971 | * ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro) | |
972 | */ | |
973 | Aml *aml_word_bus_number(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, | |
974 | AmlDecode dec, uint16_t addr_gran, | |
975 | uint16_t addr_min, uint16_t addr_max, | |
976 | uint16_t addr_trans, uint16_t len) | |
977 | ||
978 | { | |
ff80dc7f | 979 | return aml_word_as_desc(AML_BUS_NUMBER_RANGE, min_fixed, max_fixed, dec, |
6ece7053 IM |
980 | addr_gran, addr_min, addr_max, addr_trans, len, 0); |
981 | } | |
982 | ||
983 | /* | |
984 | * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor | |
985 | * | |
986 | * More verbose description at: | |
987 | * ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro) | |
988 | */ | |
989 | Aml *aml_word_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, | |
990 | AmlDecode dec, AmlISARanges isa_ranges, | |
991 | uint16_t addr_gran, uint16_t addr_min, | |
992 | uint16_t addr_max, uint16_t addr_trans, | |
993 | uint16_t len) | |
994 | ||
995 | { | |
ff80dc7f | 996 | return aml_word_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec, |
6ece7053 IM |
997 | addr_gran, addr_min, addr_max, addr_trans, len, |
998 | isa_ranges); | |
999 | } | |
1000 | ||
616ef329 SZ |
1001 | /* |
1002 | * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor | |
1003 | * | |
1004 | * More verbose description at: | |
1005 | * ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro) | |
1006 | */ | |
1007 | Aml *aml_dword_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, | |
1008 | AmlDecode dec, AmlISARanges isa_ranges, | |
1009 | uint32_t addr_gran, uint32_t addr_min, | |
1010 | uint32_t addr_max, uint32_t addr_trans, | |
1011 | uint32_t len) | |
1012 | ||
1013 | { | |
1014 | return aml_dword_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec, | |
1015 | addr_gran, addr_min, addr_max, addr_trans, len, | |
1016 | isa_ranges); | |
1017 | } | |
1018 | ||
6ece7053 IM |
1019 | /* |
1020 | * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor | |
1021 | * | |
1022 | * More verbose description at: | |
1023 | * ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro) | |
1024 | */ | |
1025 | Aml *aml_dword_memory(AmlDecode dec, AmlMinFixed min_fixed, | |
ff80dc7f | 1026 | AmlMaxFixed max_fixed, AmlCacheable cacheable, |
6ece7053 IM |
1027 | AmlReadAndWrite read_and_write, |
1028 | uint32_t addr_gran, uint32_t addr_min, | |
1029 | uint32_t addr_max, uint32_t addr_trans, | |
1030 | uint32_t len) | |
1031 | { | |
1032 | uint8_t flags = read_and_write | (cacheable << 1); | |
1033 | ||
ff80dc7f | 1034 | return aml_dword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed, |
6ece7053 IM |
1035 | dec, addr_gran, addr_min, addr_max, |
1036 | addr_trans, len, flags); | |
1037 | } | |
1038 | ||
1039 | /* | |
1040 | * ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor | |
1041 | * | |
1042 | * More verbose description at: | |
1043 | * ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro) | |
1044 | */ | |
1045 | Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed, | |
ff80dc7f | 1046 | AmlMaxFixed max_fixed, AmlCacheable cacheable, |
6ece7053 IM |
1047 | AmlReadAndWrite read_and_write, |
1048 | uint64_t addr_gran, uint64_t addr_min, | |
1049 | uint64_t addr_max, uint64_t addr_trans, | |
1050 | uint64_t len) | |
1051 | { | |
1052 | uint8_t flags = read_and_write | (cacheable << 1); | |
1053 | ||
ff80dc7f | 1054 | return aml_qword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed, |
6ece7053 IM |
1055 | dec, addr_gran, addr_min, addr_max, |
1056 | addr_trans, len, flags); | |
1057 | } | |
658c2718 | 1058 | |
b930fb9d SZ |
1059 | static uint8_t Hex2Byte(const char *src) |
1060 | { | |
1061 | int hi, lo; | |
1062 | ||
1063 | hi = Hex2Digit(src[0]); | |
1064 | assert(hi >= 0); | |
1065 | assert(hi <= 15); | |
1066 | ||
1067 | lo = Hex2Digit(src[1]); | |
1068 | assert(lo >= 0); | |
1069 | assert(lo <= 15); | |
1070 | return (hi << 4) | lo; | |
1071 | } | |
1072 | ||
1073 | /* | |
1074 | * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro) | |
1075 | * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp | |
1076 | * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp"); | |
1077 | */ | |
1078 | Aml *aml_touuid(const char *uuid) | |
1079 | { | |
1080 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); | |
1081 | ||
1082 | assert(strlen(uuid) == 36); | |
1083 | assert(uuid[8] == '-'); | |
1084 | assert(uuid[13] == '-'); | |
1085 | assert(uuid[18] == '-'); | |
1086 | assert(uuid[23] == '-'); | |
1087 | ||
1088 | build_append_byte(var->buf, Hex2Byte(uuid + 6)); /* dd - at offset 00 */ | |
1089 | build_append_byte(var->buf, Hex2Byte(uuid + 4)); /* cc - at offset 01 */ | |
1090 | build_append_byte(var->buf, Hex2Byte(uuid + 2)); /* bb - at offset 02 */ | |
1091 | build_append_byte(var->buf, Hex2Byte(uuid + 0)); /* aa - at offset 03 */ | |
1092 | ||
1093 | build_append_byte(var->buf, Hex2Byte(uuid + 11)); /* ff - at offset 04 */ | |
1094 | build_append_byte(var->buf, Hex2Byte(uuid + 9)); /* ee - at offset 05 */ | |
1095 | ||
1096 | build_append_byte(var->buf, Hex2Byte(uuid + 16)); /* hh - at offset 06 */ | |
1097 | build_append_byte(var->buf, Hex2Byte(uuid + 14)); /* gg - at offset 07 */ | |
1098 | ||
1099 | build_append_byte(var->buf, Hex2Byte(uuid + 19)); /* ii - at offset 08 */ | |
1100 | build_append_byte(var->buf, Hex2Byte(uuid + 21)); /* jj - at offset 09 */ | |
1101 | ||
1102 | build_append_byte(var->buf, Hex2Byte(uuid + 24)); /* kk - at offset 10 */ | |
1103 | build_append_byte(var->buf, Hex2Byte(uuid + 26)); /* ll - at offset 11 */ | |
1104 | build_append_byte(var->buf, Hex2Byte(uuid + 28)); /* mm - at offset 12 */ | |
1105 | build_append_byte(var->buf, Hex2Byte(uuid + 30)); /* nn - at offset 13 */ | |
1106 | build_append_byte(var->buf, Hex2Byte(uuid + 32)); /* oo - at offset 14 */ | |
1107 | build_append_byte(var->buf, Hex2Byte(uuid + 34)); /* pp - at offset 15 */ | |
1108 | ||
1109 | return var; | |
1110 | } | |
1111 | ||
e1f776c4 SZ |
1112 | /* |
1113 | * ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode) | |
1114 | */ | |
1115 | Aml *aml_unicode(const char *str) | |
1116 | { | |
1117 | int i = 0; | |
1118 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); | |
1119 | ||
1120 | do { | |
1121 | build_append_byte(var->buf, str[i]); | |
1122 | build_append_byte(var->buf, 0); | |
1123 | i++; | |
1124 | } while (i <= strlen(str)); | |
1125 | ||
1126 | return var; | |
1127 | } | |
1128 | ||
658c2718 SZ |
1129 | void |
1130 | build_header(GArray *linker, GArray *table_data, | |
1131 | AcpiTableHeader *h, const char *sig, int len, uint8_t rev) | |
1132 | { | |
1133 | memcpy(&h->signature, sig, 4); | |
1134 | h->length = cpu_to_le32(len); | |
1135 | h->revision = rev; | |
1136 | memcpy(h->oem_id, ACPI_BUILD_APPNAME6, 6); | |
1137 | memcpy(h->oem_table_id, ACPI_BUILD_APPNAME4, 4); | |
1138 | memcpy(h->oem_table_id + 4, sig, 4); | |
1139 | h->oem_revision = cpu_to_le32(1); | |
1140 | memcpy(h->asl_compiler_id, ACPI_BUILD_APPNAME4, 4); | |
1141 | h->asl_compiler_revision = cpu_to_le32(1); | |
1142 | h->checksum = 0; | |
1143 | /* Checksum to be filled in by Guest linker */ | |
1144 | bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE, | |
1145 | table_data->data, h, len, &h->checksum); | |
1146 | } | |
1147 | ||
1148 | void *acpi_data_push(GArray *table_data, unsigned size) | |
1149 | { | |
1150 | unsigned off = table_data->len; | |
1151 | g_array_set_size(table_data, off + size); | |
1152 | return table_data->data + off; | |
1153 | } | |
1154 | ||
1155 | unsigned acpi_data_len(GArray *table) | |
1156 | { | |
1157 | #if GLIB_CHECK_VERSION(2, 22, 0) | |
1158 | assert(g_array_get_element_size(table) == 1); | |
1159 | #endif | |
1160 | return table->len; | |
1161 | } | |
1162 | ||
1163 | void acpi_add_table(GArray *table_offsets, GArray *table_data) | |
1164 | { | |
1165 | uint32_t offset = cpu_to_le32(table_data->len); | |
1166 | g_array_append_val(table_offsets, offset); | |
1167 | } | |
1168 | ||
1169 | void acpi_build_tables_init(AcpiBuildTables *tables) | |
1170 | { | |
1171 | tables->rsdp = g_array_new(false, true /* clear */, 1); | |
1172 | tables->table_data = g_array_new(false, true /* clear */, 1); | |
1173 | tables->tcpalog = g_array_new(false, true /* clear */, 1); | |
1174 | tables->linker = bios_linker_loader_init(); | |
1175 | } | |
1176 | ||
1177 | void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre) | |
1178 | { | |
1179 | void *linker_data = bios_linker_loader_cleanup(tables->linker); | |
1180 | g_free(linker_data); | |
1181 | g_array_free(tables->rsdp, true); | |
1182 | g_array_free(tables->table_data, true); | |
1183 | g_array_free(tables->tcpalog, mfre); | |
1184 | } | |
243bdb79 SZ |
1185 | |
1186 | /* Build rsdt table */ | |
1187 | void | |
1188 | build_rsdt(GArray *table_data, GArray *linker, GArray *table_offsets) | |
1189 | { | |
1190 | AcpiRsdtDescriptorRev1 *rsdt; | |
1191 | size_t rsdt_len; | |
1192 | int i; | |
1193 | const int table_data_len = (sizeof(uint32_t) * table_offsets->len); | |
1194 | ||
1195 | rsdt_len = sizeof(*rsdt) + table_data_len; | |
1196 | rsdt = acpi_data_push(table_data, rsdt_len); | |
1197 | memcpy(rsdt->table_offset_entry, table_offsets->data, table_data_len); | |
1198 | for (i = 0; i < table_offsets->len; ++i) { | |
1199 | /* rsdt->table_offset_entry to be filled by Guest linker */ | |
1200 | bios_linker_loader_add_pointer(linker, | |
1201 | ACPI_BUILD_TABLE_FILE, | |
1202 | ACPI_BUILD_TABLE_FILE, | |
1203 | table_data, &rsdt->table_offset_entry[i], | |
1204 | sizeof(uint32_t)); | |
1205 | } | |
1206 | build_header(linker, table_data, | |
1207 | (void *)rsdt, "RSDT", rsdt_len, 1); | |
1208 | } |