Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 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 | |
Markus Armbruster | c3bdc56 | 2015-05-27 19:55:55 +0200 | [diff] [blame] | 22 | #include <glib/gprintf.h> |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 23 | #include <stdio.h> |
| 24 | #include <stdarg.h> |
| 25 | #include <assert.h> |
| 26 | #include <stdbool.h> |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 27 | #include <string.h> |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 28 | #include "hw/acpi/aml-build.h" |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 29 | #include "qemu/bswap.h" |
Shannon Zhao | dc17ab1 | 2015-05-29 11:28:55 +0100 | [diff] [blame] | 30 | #include "qemu/bitops.h" |
Shannon Zhao | 658c271 | 2015-04-03 18:03:34 +0800 | [diff] [blame] | 31 | #include "hw/acpi/bios-linker-loader.h" |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 32 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 33 | static GArray *build_alloc_array(void) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 34 | { |
| 35 | return g_array_new(false, true /* clear */, 1); |
| 36 | } |
| 37 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 38 | static void build_free_array(GArray *array) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 39 | { |
| 40 | g_array_free(array, true); |
| 41 | } |
| 42 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 43 | static void build_prepend_byte(GArray *array, uint8_t val) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 44 | { |
| 45 | g_array_prepend_val(array, val); |
| 46 | } |
| 47 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 48 | static void build_append_byte(GArray *array, uint8_t val) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 49 | { |
| 50 | g_array_append_val(array, val); |
| 51 | } |
| 52 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 53 | static void build_append_array(GArray *array, GArray *val) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 54 | { |
| 55 | g_array_append_vals(array, val->data, val->len); |
| 56 | } |
| 57 | |
| 58 | #define ACPI_NAMESEG_LEN 4 |
| 59 | |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 60 | static void |
| 61 | build_append_nameseg(GArray *array, const char *seg) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 62 | { |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 63 | int len; |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 64 | |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 65 | len = strlen(seg); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 66 | assert(len <= ACPI_NAMESEG_LEN); |
| 67 | |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 68 | g_array_append_vals(array, seg, len); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 69 | /* Pad up to ACPI_NAMESEG_LEN characters if necessary. */ |
| 70 | g_array_append_vals(array, "____", ACPI_NAMESEG_LEN - len); |
| 71 | } |
| 72 | |
Stefan Weil | c167e2e | 2015-03-20 18:11:58 +0100 | [diff] [blame] | 73 | static void GCC_FMT_ATTR(2, 0) |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 74 | build_append_namestringv(GArray *array, const char *format, va_list ap) |
| 75 | { |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 76 | char *s; |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 77 | char **segs; |
| 78 | char **segs_iter; |
| 79 | int seg_count = 0; |
| 80 | |
Markus Armbruster | c3bdc56 | 2015-05-27 19:55:55 +0200 | [diff] [blame] | 81 | s = g_strdup_vprintf(format, ap); |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 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) { |
Michael S. Tsirkin | aea10cd | 2015-03-08 16:19:15 +0100 | [diff] [blame] | 107 | build_append_byte(array, 0x00); /* NullName */ |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 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 | |
Michael S. Tsirkin | 7927266 | 2015-03-10 18:13:15 +0100 | [diff] [blame] | 136 | GCC_FMT_ATTR(2, 3) |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 137 | static void build_append_namestring(GArray *array, const char *format, ...) |
Igor Mammedov | eae8bde | 2015-01-30 13:29:37 +0000 | [diff] [blame] | 138 | { |
| 139 | va_list ap; |
| 140 | |
| 141 | va_start(ap, format); |
| 142 | build_append_namestringv(array, format, ap); |
| 143 | va_end(ap); |
| 144 | } |
| 145 | |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 154 | static void |
Igor Mammedov | 19fff2d | 2015-02-18 19:14:33 +0000 | [diff] [blame] | 155 | build_prepend_package_length(GArray *package, unsigned length, bool incl_self) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 156 | { |
| 157 | uint8_t byte; |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | 19fff2d | 2015-02-18 19:14:33 +0000 | [diff] [blame] | 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 | } |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | 214ae59 | 2015-02-18 19:14:35 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 222 | static void build_package(GArray *package, uint8_t op) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 223 | { |
Igor Mammedov | 19fff2d | 2015-02-18 19:14:33 +0000 | [diff] [blame] | 224 | build_prepend_package_length(package, package->len, true); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 225 | build_prepend_byte(package, op); |
| 226 | } |
| 227 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 228 | static void build_extop_package(GArray *package, uint8_t op) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 229 | { |
Igor Mammedov | 661875e | 2015-01-30 13:29:38 +0000 | [diff] [blame] | 230 | build_package(package, op); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 231 | build_prepend_byte(package, 0x5B); /* ExtOpPrefix */ |
| 232 | } |
| 233 | |
Igor Mammedov | 295a515 | 2015-02-18 19:14:21 +0000 | [diff] [blame] | 234 | static void build_append_int_noprefix(GArray *table, uint64_t value, int size) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 235 | { |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 236 | int i; |
| 237 | |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 238 | for (i = 0; i < size; ++i) { |
| 239 | build_append_byte(table, value & 0xFF); |
| 240 | value = value >> 8; |
| 241 | } |
| 242 | } |
| 243 | |
Igor Mammedov | af59b35 | 2015-02-20 18:22:20 +0000 | [diff] [blame] | 244 | static void build_append_int(GArray *table, uint64_t value) |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 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) { |
Igor Mammedov | 295a515 | 2015-02-18 19:14:21 +0000 | [diff] [blame] | 251 | build_append_byte(table, 0x0A); /* BytePrefix */ |
| 252 | build_append_int_noprefix(table, value, 1); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 253 | } else if (value <= 0xFFFF) { |
Igor Mammedov | 295a515 | 2015-02-18 19:14:21 +0000 | [diff] [blame] | 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); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 259 | } else { |
Igor Mammedov | 295a515 | 2015-02-18 19:14:21 +0000 | [diff] [blame] | 260 | build_append_byte(table, 0x0E); /* QWordPrefix */ |
| 261 | build_append_int_noprefix(table, value, 8); |
Igor Mammedov | 19934e0 | 2015-01-30 13:29:36 +0000 | [diff] [blame] | 262 | } |
| 263 | } |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | 3c054bd | 2015-02-18 19:14:20 +0000 | [diff] [blame] | 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 | |
Igor Mammedov | 2ef7c27 | 2015-02-18 19:14:15 +0000 | [diff] [blame] | 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 | |
Michael S. Tsirkin | 2e5fead | 2015-03-03 17:40:45 +0100 | [diff] [blame] | 295 | static void aml_free(gpointer data, gpointer user_data) |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 296 | { |
| 297 | Aml *var = data; |
| 298 | build_free_array(var->buf); |
Shannon Zhao | afcf905 | 2015-05-25 15:14:37 +0800 | [diff] [blame] | 299 | g_free(var); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | Aml *init_aml_allocator(void) |
| 303 | { |
| 304 | Aml *var; |
| 305 | |
| 306 | assert(!alloc_list); |
Michael S. Tsirkin | 2e5fead | 2015-03-03 17:40:45 +0100 | [diff] [blame] | 307 | alloc_list = g_ptr_array_new(); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 308 | var = aml_alloc(); |
| 309 | return var; |
| 310 | } |
| 311 | |
| 312 | void free_aml_allocator(void) |
| 313 | { |
Michael S. Tsirkin | 2e5fead | 2015-03-03 17:40:45 +0100 | [diff] [blame] | 314 | g_ptr_array_foreach(alloc_list, aml_free, NULL); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 315 | g_ptr_array_free(alloc_list, true); |
| 316 | alloc_list = 0; |
| 317 | } |
| 318 | |
| 319 | /* pack data with DefBuffer encoding */ |
| 320 | static void build_buffer(GArray *array, uint8_t op) |
| 321 | { |
| 322 | GArray *data = build_alloc_array(); |
| 323 | |
| 324 | build_append_int(data, array->len); |
| 325 | g_array_prepend_vals(array, data->data, data->len); |
| 326 | build_free_array(data); |
| 327 | build_package(array, op); |
| 328 | } |
| 329 | |
| 330 | void aml_append(Aml *parent_ctx, Aml *child) |
| 331 | { |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 332 | GArray *buf = build_alloc_array(); |
| 333 | build_append_array(buf, child->buf); |
| 334 | |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 335 | switch (child->block_flags) { |
| 336 | case AML_OPCODE: |
| 337 | build_append_byte(parent_ctx->buf, child->op); |
| 338 | break; |
| 339 | case AML_EXT_PACKAGE: |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 340 | build_extop_package(buf, child->op); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 341 | break; |
| 342 | case AML_PACKAGE: |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 343 | build_package(buf, child->op); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 344 | break; |
| 345 | case AML_RES_TEMPLATE: |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 346 | build_append_byte(buf, 0x79); /* EndTag */ |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 347 | /* |
| 348 | * checksum operations are treated as succeeded if checksum |
| 349 | * field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag] |
| 350 | */ |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 351 | build_append_byte(buf, 0); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 352 | /* fall through, to pack resources in buffer */ |
| 353 | case AML_BUFFER: |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 354 | build_buffer(buf, child->op); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 355 | break; |
| 356 | case AML_NO_OPCODE: |
| 357 | break; |
| 358 | default: |
| 359 | assert(0); |
| 360 | break; |
| 361 | } |
Michael S. Tsirkin | 7d433b0 | 2015-03-07 20:47:51 +0100 | [diff] [blame] | 362 | build_append_array(parent_ctx->buf, buf); |
| 363 | build_free_array(buf); |
Igor Mammedov | 0f2707e | 2015-02-18 19:14:14 +0000 | [diff] [blame] | 364 | } |
Igor Mammedov | 2ef7c27 | 2015-02-18 19:14:15 +0000 | [diff] [blame] | 365 | |
| 366 | /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */ |
| 367 | Aml *aml_scope(const char *name_format, ...) |
| 368 | { |
| 369 | va_list ap; |
| 370 | Aml *var = aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE); |
| 371 | va_start(ap, name_format); |
| 372 | build_append_namestringv(var->buf, name_format, ap); |
| 373 | va_end(ap); |
| 374 | return var; |
| 375 | } |
Igor Mammedov | be06ebd | 2015-02-18 19:14:17 +0000 | [diff] [blame] | 376 | |
Igor Mammedov | b25af5a | 2015-02-18 19:14:22 +0000 | [diff] [blame] | 377 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefReturn */ |
| 378 | Aml *aml_return(Aml *val) |
| 379 | { |
| 380 | Aml *var = aml_opcode(0xA4 /* ReturnOp */); |
| 381 | aml_append(var, val); |
| 382 | return var; |
| 383 | } |
| 384 | |
Igor Mammedov | 3c054bd | 2015-02-18 19:14:20 +0000 | [diff] [blame] | 385 | /* |
Igor Mammedov | 295a515 | 2015-02-18 19:14:21 +0000 | [diff] [blame] | 386 | * ACPI 1.0b: 16.2.3 Data Objects Encoding: |
| 387 | * encodes: ByteConst, WordConst, DWordConst, QWordConst, ZeroOp, OneOp |
| 388 | */ |
| 389 | Aml *aml_int(const uint64_t val) |
| 390 | { |
| 391 | Aml *var = aml_alloc(); |
| 392 | build_append_int(var->buf, val); |
| 393 | return var; |
| 394 | } |
| 395 | |
| 396 | /* |
Igor Mammedov | 3c054bd | 2015-02-18 19:14:20 +0000 | [diff] [blame] | 397 | * helper to construct NameString, which returns Aml object |
| 398 | * for using with aml_append or other aml_* terms |
| 399 | */ |
| 400 | Aml *aml_name(const char *name_format, ...) |
| 401 | { |
| 402 | va_list ap; |
| 403 | Aml *var = aml_alloc(); |
| 404 | va_start(ap, name_format); |
| 405 | build_append_namestringv(var->buf, name_format, ap); |
| 406 | va_end(ap); |
| 407 | return var; |
| 408 | } |
| 409 | |
| 410 | /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefName */ |
| 411 | Aml *aml_name_decl(const char *name, Aml *val) |
| 412 | { |
| 413 | Aml *var = aml_opcode(0x08 /* NameOp */); |
| 414 | build_append_namestring(var->buf, "%s", name); |
| 415 | aml_append(var, val); |
| 416 | return var; |
| 417 | } |
| 418 | |
Igor Mammedov | 7193f3a | 2015-02-18 19:14:23 +0000 | [diff] [blame] | 419 | /* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */ |
| 420 | Aml *aml_arg(int pos) |
| 421 | { |
| 422 | Aml *var; |
| 423 | uint8_t op = 0x68 /* ARG0 op */ + pos; |
| 424 | |
| 425 | assert(pos <= 6); |
| 426 | var = aml_opcode(op); |
| 427 | return var; |
| 428 | } |
| 429 | |
Igor Mammedov | c263b3f | 2015-02-18 19:14:24 +0000 | [diff] [blame] | 430 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */ |
| 431 | Aml *aml_store(Aml *val, Aml *target) |
| 432 | { |
| 433 | Aml *var = aml_opcode(0x70 /* StoreOp */); |
| 434 | aml_append(var, val); |
| 435 | aml_append(var, target); |
| 436 | return var; |
| 437 | } |
| 438 | |
Igor Mammedov | 926f5aa | 2015-02-18 19:14:25 +0000 | [diff] [blame] | 439 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAnd */ |
| 440 | Aml *aml_and(Aml *arg1, Aml *arg2) |
| 441 | { |
| 442 | Aml *var = aml_opcode(0x7B /* AndOp */); |
| 443 | aml_append(var, arg1); |
| 444 | aml_append(var, arg2); |
Michael S. Tsirkin | aea10cd | 2015-03-08 16:19:15 +0100 | [diff] [blame] | 445 | build_append_byte(var->buf, 0x00 /* NullNameOp */); |
Igor Mammedov | 926f5aa | 2015-02-18 19:14:25 +0000 | [diff] [blame] | 446 | return var; |
| 447 | } |
| 448 | |
Shannon Zhao | 922cc88 | 2015-05-29 11:28:58 +0100 | [diff] [blame] | 449 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefOr */ |
| 450 | Aml *aml_or(Aml *arg1, Aml *arg2) |
| 451 | { |
| 452 | Aml *var = aml_opcode(0x7D /* OrOp */); |
| 453 | aml_append(var, arg1); |
| 454 | aml_append(var, arg2); |
| 455 | build_append_byte(var->buf, 0x00 /* NullNameOp */); |
| 456 | return var; |
| 457 | } |
| 458 | |
Marcel Apfelbaum | a57dddd | 2015-05-25 18:33:43 +0300 | [diff] [blame] | 459 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */ |
| 460 | Aml *aml_shiftleft(Aml *arg1, Aml *count) |
| 461 | { |
| 462 | Aml *var = aml_opcode(0x79 /* ShiftLeftOp */); |
| 463 | aml_append(var, arg1); |
| 464 | aml_append(var, count); |
| 465 | build_append_byte(var->buf, 0x00); /* NullNameOp */ |
| 466 | return var; |
| 467 | } |
| 468 | |
Marcel Apfelbaum | f7bd7b8 | 2015-05-25 18:33:44 +0300 | [diff] [blame] | 469 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */ |
| 470 | Aml *aml_shiftright(Aml *arg1, Aml *count) |
| 471 | { |
| 472 | Aml *var = aml_opcode(0x7A /* ShiftRightOp */); |
| 473 | aml_append(var, arg1); |
| 474 | aml_append(var, count); |
| 475 | build_append_byte(var->buf, 0x00); /* NullNameOp */ |
| 476 | return var; |
| 477 | } |
| 478 | |
Marcel Apfelbaum | 96396e2 | 2015-05-25 18:33:41 +0300 | [diff] [blame] | 479 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */ |
| 480 | Aml *aml_lless(Aml *arg1, Aml *arg2) |
| 481 | { |
| 482 | Aml *var = aml_opcode(0x95 /* LLessOp */); |
| 483 | aml_append(var, arg1); |
| 484 | aml_append(var, arg2); |
| 485 | return var; |
| 486 | } |
| 487 | |
Marcel Apfelbaum | c08cf07 | 2015-05-25 18:33:40 +0300 | [diff] [blame] | 488 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */ |
| 489 | Aml *aml_add(Aml *arg1, Aml *arg2) |
| 490 | { |
| 491 | Aml *var = aml_opcode(0x72 /* AddOp */); |
| 492 | aml_append(var, arg1); |
| 493 | aml_append(var, arg2); |
| 494 | build_append_byte(var->buf, 0x00 /* NullNameOp */); |
| 495 | return var; |
| 496 | } |
| 497 | |
Marcel Apfelbaum | af39d53 | 2015-05-25 18:33:45 +0300 | [diff] [blame] | 498 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */ |
| 499 | Aml *aml_increment(Aml *arg) |
| 500 | { |
| 501 | Aml *var = aml_opcode(0x75 /* IncrementOp */); |
| 502 | aml_append(var, arg); |
| 503 | return var; |
| 504 | } |
| 505 | |
Marcel Apfelbaum | 928b899 | 2015-05-25 18:33:42 +0300 | [diff] [blame] | 506 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */ |
| 507 | Aml *aml_index(Aml *arg1, Aml *idx) |
| 508 | { |
| 509 | Aml *var = aml_opcode(0x88 /* IndexOp */); |
| 510 | aml_append(var, arg1); |
| 511 | aml_append(var, idx); |
| 512 | build_append_byte(var->buf, 0x00 /* NullNameOp */); |
| 513 | return var; |
| 514 | } |
| 515 | |
Igor Mammedov | 3418945 | 2015-02-18 19:14:26 +0000 | [diff] [blame] | 516 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */ |
| 517 | Aml *aml_notify(Aml *arg1, Aml *arg2) |
| 518 | { |
| 519 | Aml *var = aml_opcode(0x86 /* NotifyOp */); |
| 520 | aml_append(var, arg1); |
| 521 | aml_append(var, arg2); |
| 522 | return var; |
| 523 | } |
| 524 | |
Igor Mammedov | 3f3992b | 2015-02-18 19:14:27 +0000 | [diff] [blame] | 525 | /* helper to call method with 1 argument */ |
| 526 | Aml *aml_call1(const char *method, Aml *arg1) |
| 527 | { |
| 528 | Aml *var = aml_alloc(); |
| 529 | build_append_namestring(var->buf, "%s", method); |
| 530 | aml_append(var, arg1); |
| 531 | return var; |
| 532 | } |
| 533 | |
| 534 | /* helper to call method with 2 arguments */ |
| 535 | Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2) |
| 536 | { |
| 537 | Aml *var = aml_alloc(); |
| 538 | build_append_namestring(var->buf, "%s", method); |
| 539 | aml_append(var, arg1); |
| 540 | aml_append(var, arg2); |
| 541 | return var; |
| 542 | } |
| 543 | |
| 544 | /* helper to call method with 3 arguments */ |
| 545 | Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3) |
| 546 | { |
| 547 | Aml *var = aml_alloc(); |
| 548 | build_append_namestring(var->buf, "%s", method); |
| 549 | aml_append(var, arg1); |
| 550 | aml_append(var, arg2); |
| 551 | aml_append(var, arg3); |
| 552 | return var; |
| 553 | } |
| 554 | |
| 555 | /* helper to call method with 4 arguments */ |
| 556 | Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4) |
| 557 | { |
| 558 | Aml *var = aml_alloc(); |
| 559 | build_append_namestring(var->buf, "%s", method); |
| 560 | aml_append(var, arg1); |
| 561 | aml_append(var, arg2); |
| 562 | aml_append(var, arg3); |
| 563 | aml_append(var, arg4); |
| 564 | return var; |
| 565 | } |
| 566 | |
Shannon Zhao | dc17ab1 | 2015-05-29 11:28:55 +0100 | [diff] [blame] | 567 | /* |
| 568 | * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor |
| 569 | * (Type 1, Large Item Name 0x6) |
| 570 | */ |
| 571 | Aml *aml_memory32_fixed(uint32_t addr, uint32_t size, |
| 572 | AmlReadAndWrite read_and_write) |
| 573 | { |
| 574 | Aml *var = aml_alloc(); |
| 575 | build_append_byte(var->buf, 0x86); /* Memory32Fixed Resource Descriptor */ |
| 576 | build_append_byte(var->buf, 9); /* Length, bits[7:0] value = 9 */ |
| 577 | build_append_byte(var->buf, 0); /* Length, bits[15:8] value = 0 */ |
| 578 | build_append_byte(var->buf, read_and_write); /* Write status, 1 rw 0 ro */ |
| 579 | |
| 580 | /* Range base address */ |
| 581 | build_append_byte(var->buf, extract32(addr, 0, 8)); /* bits[7:0] */ |
| 582 | build_append_byte(var->buf, extract32(addr, 8, 8)); /* bits[15:8] */ |
| 583 | build_append_byte(var->buf, extract32(addr, 16, 8)); /* bits[23:16] */ |
| 584 | build_append_byte(var->buf, extract32(addr, 24, 8)); /* bits[31:24] */ |
| 585 | |
| 586 | /* Range length */ |
| 587 | build_append_byte(var->buf, extract32(size, 0, 8)); /* bits[7:0] */ |
| 588 | build_append_byte(var->buf, extract32(size, 8, 8)); /* bits[15:8] */ |
| 589 | build_append_byte(var->buf, extract32(size, 16, 8)); /* bits[23:16] */ |
| 590 | build_append_byte(var->buf, extract32(size, 24, 8)); /* bits[31:24] */ |
| 591 | return var; |
| 592 | } |
| 593 | |
Shannon Zhao | 205d1d1 | 2015-05-29 11:28:55 +0100 | [diff] [blame] | 594 | /* |
| 595 | * ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor |
| 596 | * Type 1, Large Item Name 0x9 |
| 597 | */ |
| 598 | Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro, |
| 599 | AmlLevelAndEdge level_and_edge, |
| 600 | AmlActiveHighAndLow high_and_low, AmlShared shared, |
| 601 | uint32_t irq) |
| 602 | { |
| 603 | Aml *var = aml_alloc(); |
| 604 | uint8_t irq_flags = con_and_pro | (level_and_edge << 1) |
| 605 | | (high_and_low << 2) | (shared << 3); |
| 606 | |
| 607 | build_append_byte(var->buf, 0x89); /* Extended irq descriptor */ |
| 608 | build_append_byte(var->buf, 6); /* Length, bits[7:0] minimum value = 6 */ |
| 609 | build_append_byte(var->buf, 0); /* Length, bits[15:8] minimum value = 0 */ |
| 610 | build_append_byte(var->buf, irq_flags); /* Interrupt Vector Information. */ |
| 611 | build_append_byte(var->buf, 0x01); /* Interrupt table length = 1 */ |
| 612 | |
| 613 | /* Interrupt Number */ |
| 614 | build_append_byte(var->buf, extract32(irq, 0, 8)); /* bits[7:0] */ |
| 615 | build_append_byte(var->buf, extract32(irq, 8, 8)); /* bits[15:8] */ |
| 616 | build_append_byte(var->buf, extract32(irq, 16, 8)); /* bits[23:16] */ |
| 617 | build_append_byte(var->buf, extract32(irq, 24, 8)); /* bits[31:24] */ |
| 618 | return var; |
| 619 | } |
| 620 | |
Igor Mammedov | 52fa397 | 2015-02-18 19:14:32 +0000 | [diff] [blame] | 621 | /* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */ |
| 622 | Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base, |
| 623 | uint8_t aln, uint8_t len) |
| 624 | { |
| 625 | Aml *var = aml_alloc(); |
| 626 | build_append_byte(var->buf, 0x47); /* IO port descriptor */ |
| 627 | build_append_byte(var->buf, dec); |
| 628 | build_append_byte(var->buf, min_base & 0xff); |
| 629 | build_append_byte(var->buf, (min_base >> 8) & 0xff); |
| 630 | build_append_byte(var->buf, max_base & 0xff); |
| 631 | build_append_byte(var->buf, (max_base >> 8) & 0xff); |
| 632 | build_append_byte(var->buf, aln); |
| 633 | build_append_byte(var->buf, len); |
| 634 | return var; |
| 635 | } |
| 636 | |
Igor Mammedov | 7056045 | 2015-02-20 18:22:10 +0000 | [diff] [blame] | 637 | /* |
| 638 | * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor |
| 639 | * |
| 640 | * More verbose description at: |
| 641 | * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro) |
| 642 | * 6.4.2.1 IRQ Descriptor |
| 643 | */ |
| 644 | Aml *aml_irq_no_flags(uint8_t irq) |
| 645 | { |
| 646 | uint16_t irq_mask; |
| 647 | Aml *var = aml_alloc(); |
| 648 | |
| 649 | assert(irq < 16); |
| 650 | build_append_byte(var->buf, 0x22); /* IRQ descriptor 2 byte form */ |
| 651 | |
| 652 | irq_mask = 1U << irq; |
| 653 | build_append_byte(var->buf, irq_mask & 0xFF); /* IRQ mask bits[7:0] */ |
| 654 | build_append_byte(var->buf, irq_mask >> 8); /* IRQ mask bits[15:8] */ |
| 655 | return var; |
| 656 | } |
| 657 | |
Shannon Zhao | ea7df04 | 2015-05-29 11:28:58 +0100 | [diff] [blame] | 658 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */ |
| 659 | Aml *aml_lnot(Aml *arg) |
| 660 | { |
| 661 | Aml *var = aml_opcode(0x92 /* LNotOp */); |
| 662 | aml_append(var, arg); |
| 663 | return var; |
| 664 | } |
| 665 | |
Igor Mammedov | 15e44e5 | 2015-02-18 19:14:40 +0000 | [diff] [blame] | 666 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */ |
| 667 | Aml *aml_equal(Aml *arg1, Aml *arg2) |
| 668 | { |
| 669 | Aml *var = aml_opcode(0x93 /* LequalOp */); |
| 670 | aml_append(var, arg1); |
| 671 | aml_append(var, arg2); |
Igor Mammedov | 15e44e5 | 2015-02-18 19:14:40 +0000 | [diff] [blame] | 672 | return var; |
| 673 | } |
| 674 | |
Igor Mammedov | 32acac9 | 2015-02-18 19:14:19 +0000 | [diff] [blame] | 675 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */ |
| 676 | Aml *aml_if(Aml *predicate) |
| 677 | { |
| 678 | Aml *var = aml_bundle(0xA0 /* IfOp */, AML_PACKAGE); |
| 679 | aml_append(var, predicate); |
| 680 | return var; |
| 681 | } |
| 682 | |
Shannon Zhao | 467b07d | 2015-05-29 11:28:58 +0100 | [diff] [blame] | 683 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */ |
| 684 | Aml *aml_else(void) |
| 685 | { |
| 686 | Aml *var = aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE); |
| 687 | return var; |
| 688 | } |
| 689 | |
Marcel Apfelbaum | 32d9ca1 | 2015-06-02 14:22:56 +0300 | [diff] [blame] | 690 | /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefWhile */ |
| 691 | Aml *aml_while(Aml *predicate) |
| 692 | { |
| 693 | Aml *var = aml_bundle(0xA2 /* WhileOp */, AML_PACKAGE); |
| 694 | aml_append(var, predicate); |
| 695 | return var; |
| 696 | } |
| 697 | |
Igor Mammedov | ea2407d | 2015-02-18 19:14:18 +0000 | [diff] [blame] | 698 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */ |
| 699 | Aml *aml_method(const char *name, int arg_count) |
| 700 | { |
| 701 | Aml *var = aml_bundle(0x14 /* MethodOp */, AML_PACKAGE); |
| 702 | build_append_namestring(var->buf, "%s", name); |
| 703 | build_append_byte(var->buf, arg_count); /* MethodFlags: ArgCount */ |
| 704 | return var; |
| 705 | } |
| 706 | |
Igor Mammedov | be06ebd | 2015-02-18 19:14:17 +0000 | [diff] [blame] | 707 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */ |
| 708 | Aml *aml_device(const char *name_format, ...) |
| 709 | { |
| 710 | va_list ap; |
| 711 | Aml *var = aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE); |
| 712 | va_start(ap, name_format); |
| 713 | build_append_namestringv(var->buf, name_format, ap); |
| 714 | va_end(ap); |
| 715 | return var; |
| 716 | } |
Igor Mammedov | 3bfa74a | 2015-02-18 19:14:28 +0000 | [diff] [blame] | 717 | |
Igor Mammedov | ad4a80b | 2015-02-18 19:14:31 +0000 | [diff] [blame] | 718 | /* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */ |
| 719 | Aml *aml_resource_template(void) |
| 720 | { |
| 721 | /* ResourceTemplate is a buffer of Resources with EndTag at the end */ |
| 722 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE); |
| 723 | return var; |
| 724 | } |
| 725 | |
Shannon Zhao | ed8b584 | 2015-05-29 11:28:57 +0100 | [diff] [blame] | 726 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer |
| 727 | * Pass byte_list as NULL to request uninitialized buffer to reserve space. |
| 728 | */ |
| 729 | Aml *aml_buffer(int buffer_size, uint8_t *byte_list) |
Igor Mammedov | 04b8da5 | 2015-02-18 19:14:30 +0000 | [diff] [blame] | 730 | { |
Shannon Zhao | ed8b584 | 2015-05-29 11:28:57 +0100 | [diff] [blame] | 731 | int i; |
Igor Mammedov | 04b8da5 | 2015-02-18 19:14:30 +0000 | [diff] [blame] | 732 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); |
Shannon Zhao | ed8b584 | 2015-05-29 11:28:57 +0100 | [diff] [blame] | 733 | |
| 734 | for (i = 0; i < buffer_size; i++) { |
| 735 | if (byte_list == NULL) { |
| 736 | build_append_byte(var->buf, 0x0); |
| 737 | } else { |
| 738 | build_append_byte(var->buf, byte_list[i]); |
| 739 | } |
| 740 | } |
| 741 | |
Igor Mammedov | 04b8da5 | 2015-02-18 19:14:30 +0000 | [diff] [blame] | 742 | return var; |
| 743 | } |
| 744 | |
Igor Mammedov | 3bfa74a | 2015-02-18 19:14:28 +0000 | [diff] [blame] | 745 | /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */ |
| 746 | Aml *aml_package(uint8_t num_elements) |
| 747 | { |
| 748 | Aml *var = aml_bundle(0x12 /* PackageOp */, AML_PACKAGE); |
| 749 | build_append_byte(var->buf, num_elements); |
| 750 | return var; |
| 751 | } |
Igor Mammedov | 3112793 | 2015-02-18 19:14:34 +0000 | [diff] [blame] | 752 | |
| 753 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */ |
| 754 | Aml *aml_operation_region(const char *name, AmlRegionSpace rs, |
| 755 | uint32_t offset, uint32_t len) |
| 756 | { |
| 757 | Aml *var = aml_alloc(); |
| 758 | build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */ |
| 759 | build_append_byte(var->buf, 0x80); /* OpRegionOp */ |
| 760 | build_append_namestring(var->buf, "%s", name); |
| 761 | build_append_byte(var->buf, rs); |
| 762 | build_append_int(var->buf, offset); |
| 763 | build_append_int(var->buf, len); |
| 764 | return var; |
| 765 | } |
Igor Mammedov | 214ae59 | 2015-02-18 19:14:35 +0000 | [diff] [blame] | 766 | |
| 767 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */ |
| 768 | Aml *aml_named_field(const char *name, unsigned length) |
| 769 | { |
| 770 | Aml *var = aml_alloc(); |
| 771 | build_append_nameseg(var->buf, name); |
| 772 | build_append_pkg_length(var->buf, length, false); |
| 773 | return var; |
| 774 | } |
| 775 | |
Igor Mammedov | e2ea299 | 2015-02-18 19:14:45 +0000 | [diff] [blame] | 776 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */ |
| 777 | Aml *aml_reserved_field(unsigned length) |
| 778 | { |
| 779 | Aml *var = aml_alloc(); |
| 780 | /* ReservedField := 0x00 PkgLength */ |
| 781 | build_append_byte(var->buf, 0x00); |
| 782 | build_append_pkg_length(var->buf, length, false); |
| 783 | return var; |
| 784 | } |
| 785 | |
Igor Mammedov | 214ae59 | 2015-02-18 19:14:35 +0000 | [diff] [blame] | 786 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */ |
Zhu Guihua | af50989 | 2015-04-27 16:47:19 +0800 | [diff] [blame] | 787 | Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule) |
Igor Mammedov | 214ae59 | 2015-02-18 19:14:35 +0000 | [diff] [blame] | 788 | { |
| 789 | Aml *var = aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE); |
Zhu Guihua | af50989 | 2015-04-27 16:47:19 +0800 | [diff] [blame] | 790 | uint8_t flags = rule << 5 | type; |
| 791 | |
Igor Mammedov | 214ae59 | 2015-02-18 19:14:35 +0000 | [diff] [blame] | 792 | build_append_namestring(var->buf, "%s", name); |
| 793 | build_append_byte(var->buf, flags); |
| 794 | return var; |
| 795 | } |
Igor Mammedov | b8a5d68 | 2015-02-18 19:14:36 +0000 | [diff] [blame] | 796 | |
Shannon Zhao | ed8176a | 2015-05-29 11:28:58 +0100 | [diff] [blame] | 797 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */ |
| 798 | Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name) |
| 799 | { |
| 800 | Aml *var = aml_alloc(); |
| 801 | build_append_byte(var->buf, 0x8A); /* CreateDWordFieldOp */ |
| 802 | aml_append(var, srcbuf); |
| 803 | aml_append(var, index); |
| 804 | build_append_namestring(var->buf, "%s", name); |
| 805 | return var; |
| 806 | } |
| 807 | |
Igor Mammedov | d5e5830 | 2015-02-18 19:14:37 +0000 | [diff] [blame] | 808 | /* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */ |
| 809 | Aml *aml_string(const char *name_format, ...) |
| 810 | { |
| 811 | Aml *var = aml_opcode(0x0D /* StringPrefix */); |
Markus Armbruster | c3bdc56 | 2015-05-27 19:55:55 +0200 | [diff] [blame] | 812 | va_list ap; |
Igor Mammedov | d5e5830 | 2015-02-18 19:14:37 +0000 | [diff] [blame] | 813 | char *s; |
| 814 | int len; |
| 815 | |
| 816 | va_start(ap, name_format); |
Markus Armbruster | c3bdc56 | 2015-05-27 19:55:55 +0200 | [diff] [blame] | 817 | len = g_vasprintf(&s, name_format, ap); |
Igor Mammedov | d5e5830 | 2015-02-18 19:14:37 +0000 | [diff] [blame] | 818 | va_end(ap); |
| 819 | |
Markus Armbruster | c3bdc56 | 2015-05-27 19:55:55 +0200 | [diff] [blame] | 820 | g_array_append_vals(var->buf, s, len + 1); |
Igor Mammedov | d5e5830 | 2015-02-18 19:14:37 +0000 | [diff] [blame] | 821 | g_free(s); |
| 822 | |
| 823 | return var; |
| 824 | } |
| 825 | |
Igor Mammedov | b8a5d68 | 2015-02-18 19:14:36 +0000 | [diff] [blame] | 826 | /* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */ |
| 827 | Aml *aml_local(int num) |
| 828 | { |
| 829 | Aml *var; |
| 830 | uint8_t op = 0x60 /* Local0Op */ + num; |
| 831 | |
| 832 | assert(num <= 7); |
| 833 | var = aml_opcode(op); |
| 834 | return var; |
| 835 | } |
Igor Mammedov | a678508 | 2015-02-18 19:14:39 +0000 | [diff] [blame] | 836 | |
| 837 | /* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */ |
| 838 | Aml *aml_varpackage(uint32_t num_elements) |
| 839 | { |
| 840 | Aml *var = aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE); |
| 841 | build_append_int(var->buf, num_elements); |
| 842 | return var; |
| 843 | } |
Igor Mammedov | 3dd1564 | 2015-02-18 19:14:41 +0000 | [diff] [blame] | 844 | |
| 845 | /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */ |
| 846 | Aml *aml_processor(uint8_t proc_id, uint32_t pblk_addr, uint8_t pblk_len, |
| 847 | const char *name_format, ...) |
| 848 | { |
| 849 | va_list ap; |
| 850 | Aml *var = aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE); |
| 851 | va_start(ap, name_format); |
| 852 | build_append_namestringv(var->buf, name_format, ap); |
| 853 | va_end(ap); |
| 854 | build_append_byte(var->buf, proc_id); /* ProcID */ |
| 855 | build_append_int_noprefix(var->buf, pblk_addr, sizeof(pblk_addr)); |
| 856 | build_append_byte(var->buf, pblk_len); /* PblkLen */ |
| 857 | return var; |
| 858 | } |
Igor Mammedov | a7891da | 2015-02-18 19:14:42 +0000 | [diff] [blame] | 859 | |
| 860 | static uint8_t Hex2Digit(char c) |
| 861 | { |
| 862 | if (c >= 'A') { |
| 863 | return c - 'A' + 10; |
| 864 | } |
| 865 | |
| 866 | return c - '0'; |
| 867 | } |
| 868 | |
| 869 | /* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */ |
| 870 | Aml *aml_eisaid(const char *str) |
| 871 | { |
| 872 | Aml *var = aml_alloc(); |
| 873 | uint32_t id; |
| 874 | |
| 875 | g_assert(strlen(str) == 7); |
| 876 | id = (str[0] - 0x40) << 26 | |
| 877 | (str[1] - 0x40) << 21 | |
| 878 | (str[2] - 0x40) << 16 | |
| 879 | Hex2Digit(str[3]) << 12 | |
| 880 | Hex2Digit(str[4]) << 8 | |
| 881 | Hex2Digit(str[5]) << 4 | |
| 882 | Hex2Digit(str[6]); |
| 883 | |
| 884 | build_append_byte(var->buf, 0x0C); /* DWordPrefix */ |
| 885 | build_append_int_noprefix(var->buf, bswap32(id), sizeof(id)); |
| 886 | return var; |
| 887 | } |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 888 | |
| 889 | /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */ |
| 890 | static Aml *aml_as_desc_header(AmlResourceType type, AmlMinFixed min_fixed, |
| 891 | AmlMaxFixed max_fixed, AmlDecode dec, |
| 892 | uint8_t type_flags) |
| 893 | { |
| 894 | uint8_t flags = max_fixed | min_fixed | dec; |
| 895 | Aml *var = aml_alloc(); |
| 896 | |
| 897 | build_append_byte(var->buf, type); |
| 898 | build_append_byte(var->buf, flags); |
| 899 | build_append_byte(var->buf, type_flags); /* Type Specific Flags */ |
| 900 | return var; |
| 901 | } |
| 902 | |
| 903 | /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */ |
| 904 | static Aml *aml_word_as_desc(AmlResourceType type, AmlMinFixed min_fixed, |
| 905 | AmlMaxFixed max_fixed, AmlDecode dec, |
| 906 | uint16_t addr_gran, uint16_t addr_min, |
| 907 | uint16_t addr_max, uint16_t addr_trans, |
| 908 | uint16_t len, uint8_t type_flags) |
| 909 | { |
| 910 | Aml *var = aml_alloc(); |
| 911 | |
| 912 | build_append_byte(var->buf, 0x88); /* Word Address Space Descriptor */ |
| 913 | /* minimum length since we do not encode optional fields */ |
| 914 | build_append_byte(var->buf, 0x0D); |
| 915 | build_append_byte(var->buf, 0x0); |
| 916 | |
| 917 | aml_append(var, |
| 918 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); |
| 919 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); |
| 920 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); |
| 921 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); |
| 922 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); |
| 923 | build_append_int_noprefix(var->buf, len, sizeof(len)); |
| 924 | return var; |
| 925 | } |
| 926 | |
| 927 | /* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */ |
| 928 | static Aml *aml_dword_as_desc(AmlResourceType type, AmlMinFixed min_fixed, |
| 929 | AmlMaxFixed max_fixed, AmlDecode dec, |
| 930 | uint32_t addr_gran, uint32_t addr_min, |
| 931 | uint32_t addr_max, uint32_t addr_trans, |
| 932 | uint32_t len, uint8_t type_flags) |
| 933 | { |
| 934 | Aml *var = aml_alloc(); |
| 935 | |
| 936 | build_append_byte(var->buf, 0x87); /* DWord Address Space Descriptor */ |
| 937 | /* minimum length since we do not encode optional fields */ |
| 938 | build_append_byte(var->buf, 23); |
| 939 | build_append_byte(var->buf, 0x0); |
| 940 | |
| 941 | |
| 942 | aml_append(var, |
| 943 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); |
| 944 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); |
| 945 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); |
| 946 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); |
| 947 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); |
| 948 | build_append_int_noprefix(var->buf, len, sizeof(len)); |
| 949 | return var; |
| 950 | } |
| 951 | |
| 952 | /* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */ |
| 953 | static Aml *aml_qword_as_desc(AmlResourceType type, AmlMinFixed min_fixed, |
| 954 | AmlMaxFixed max_fixed, AmlDecode dec, |
| 955 | uint64_t addr_gran, uint64_t addr_min, |
| 956 | uint64_t addr_max, uint64_t addr_trans, |
| 957 | uint64_t len, uint8_t type_flags) |
| 958 | { |
| 959 | Aml *var = aml_alloc(); |
| 960 | |
| 961 | build_append_byte(var->buf, 0x8A); /* QWord Address Space Descriptor */ |
| 962 | /* minimum length since we do not encode optional fields */ |
| 963 | build_append_byte(var->buf, 0x2B); |
| 964 | build_append_byte(var->buf, 0x0); |
| 965 | |
| 966 | aml_append(var, |
| 967 | aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags)); |
| 968 | build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran)); |
| 969 | build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min)); |
| 970 | build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max)); |
| 971 | build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans)); |
| 972 | build_append_int_noprefix(var->buf, len, sizeof(len)); |
| 973 | return var; |
| 974 | } |
| 975 | |
| 976 | /* |
| 977 | * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor |
| 978 | * |
| 979 | * More verbose description at: |
| 980 | * ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro) |
| 981 | */ |
| 982 | Aml *aml_word_bus_number(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, |
| 983 | AmlDecode dec, uint16_t addr_gran, |
| 984 | uint16_t addr_min, uint16_t addr_max, |
| 985 | uint16_t addr_trans, uint16_t len) |
| 986 | |
| 987 | { |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 988 | return aml_word_as_desc(AML_BUS_NUMBER_RANGE, min_fixed, max_fixed, dec, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 989 | addr_gran, addr_min, addr_max, addr_trans, len, 0); |
| 990 | } |
| 991 | |
| 992 | /* |
| 993 | * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor |
| 994 | * |
| 995 | * More verbose description at: |
| 996 | * ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro) |
| 997 | */ |
| 998 | Aml *aml_word_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, |
| 999 | AmlDecode dec, AmlISARanges isa_ranges, |
| 1000 | uint16_t addr_gran, uint16_t addr_min, |
| 1001 | uint16_t addr_max, uint16_t addr_trans, |
| 1002 | uint16_t len) |
| 1003 | |
| 1004 | { |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 1005 | return aml_word_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1006 | addr_gran, addr_min, addr_max, addr_trans, len, |
| 1007 | isa_ranges); |
| 1008 | } |
| 1009 | |
| 1010 | /* |
Shannon Zhao | 616ef32 | 2015-05-29 11:28:58 +0100 | [diff] [blame] | 1011 | * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor |
| 1012 | * |
| 1013 | * More verbose description at: |
| 1014 | * ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro) |
| 1015 | */ |
| 1016 | Aml *aml_dword_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed, |
| 1017 | AmlDecode dec, AmlISARanges isa_ranges, |
| 1018 | uint32_t addr_gran, uint32_t addr_min, |
| 1019 | uint32_t addr_max, uint32_t addr_trans, |
| 1020 | uint32_t len) |
| 1021 | |
| 1022 | { |
| 1023 | return aml_dword_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec, |
| 1024 | addr_gran, addr_min, addr_max, addr_trans, len, |
| 1025 | isa_ranges); |
| 1026 | } |
| 1027 | |
| 1028 | /* |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1029 | * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor |
| 1030 | * |
| 1031 | * More verbose description at: |
| 1032 | * ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro) |
| 1033 | */ |
| 1034 | Aml *aml_dword_memory(AmlDecode dec, AmlMinFixed min_fixed, |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 1035 | AmlMaxFixed max_fixed, AmlCacheable cacheable, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1036 | AmlReadAndWrite read_and_write, |
| 1037 | uint32_t addr_gran, uint32_t addr_min, |
| 1038 | uint32_t addr_max, uint32_t addr_trans, |
| 1039 | uint32_t len) |
| 1040 | { |
| 1041 | uint8_t flags = read_and_write | (cacheable << 1); |
| 1042 | |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 1043 | return aml_dword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1044 | dec, addr_gran, addr_min, addr_max, |
| 1045 | addr_trans, len, flags); |
| 1046 | } |
| 1047 | |
| 1048 | /* |
| 1049 | * ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor |
| 1050 | * |
| 1051 | * More verbose description at: |
| 1052 | * ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro) |
| 1053 | */ |
| 1054 | Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed, |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 1055 | AmlMaxFixed max_fixed, AmlCacheable cacheable, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1056 | AmlReadAndWrite read_and_write, |
| 1057 | uint64_t addr_gran, uint64_t addr_min, |
| 1058 | uint64_t addr_max, uint64_t addr_trans, |
| 1059 | uint64_t len) |
| 1060 | { |
| 1061 | uint8_t flags = read_and_write | (cacheable << 1); |
| 1062 | |
Shannon Zhao | ff80dc7 | 2015-05-29 11:28:54 +0100 | [diff] [blame] | 1063 | return aml_qword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed, |
Igor Mammedov | 6ece705 | 2015-02-18 19:14:48 +0000 | [diff] [blame] | 1064 | dec, addr_gran, addr_min, addr_max, |
| 1065 | addr_trans, len, flags); |
| 1066 | } |
Shannon Zhao | 658c271 | 2015-04-03 18:03:34 +0800 | [diff] [blame] | 1067 | |
Shannon Zhao | b930fb9 | 2015-05-29 11:28:57 +0100 | [diff] [blame] | 1068 | static uint8_t Hex2Byte(const char *src) |
| 1069 | { |
| 1070 | int hi, lo; |
| 1071 | |
| 1072 | hi = Hex2Digit(src[0]); |
| 1073 | assert(hi >= 0); |
| 1074 | assert(hi <= 15); |
| 1075 | |
| 1076 | lo = Hex2Digit(src[1]); |
| 1077 | assert(lo >= 0); |
| 1078 | assert(lo <= 15); |
| 1079 | return (hi << 4) | lo; |
| 1080 | } |
| 1081 | |
| 1082 | /* |
| 1083 | * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro) |
| 1084 | * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp |
| 1085 | * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp"); |
| 1086 | */ |
| 1087 | Aml *aml_touuid(const char *uuid) |
| 1088 | { |
| 1089 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); |
| 1090 | |
| 1091 | assert(strlen(uuid) == 36); |
| 1092 | assert(uuid[8] == '-'); |
| 1093 | assert(uuid[13] == '-'); |
| 1094 | assert(uuid[18] == '-'); |
| 1095 | assert(uuid[23] == '-'); |
| 1096 | |
| 1097 | build_append_byte(var->buf, Hex2Byte(uuid + 6)); /* dd - at offset 00 */ |
| 1098 | build_append_byte(var->buf, Hex2Byte(uuid + 4)); /* cc - at offset 01 */ |
| 1099 | build_append_byte(var->buf, Hex2Byte(uuid + 2)); /* bb - at offset 02 */ |
| 1100 | build_append_byte(var->buf, Hex2Byte(uuid + 0)); /* aa - at offset 03 */ |
| 1101 | |
| 1102 | build_append_byte(var->buf, Hex2Byte(uuid + 11)); /* ff - at offset 04 */ |
| 1103 | build_append_byte(var->buf, Hex2Byte(uuid + 9)); /* ee - at offset 05 */ |
| 1104 | |
| 1105 | build_append_byte(var->buf, Hex2Byte(uuid + 16)); /* hh - at offset 06 */ |
| 1106 | build_append_byte(var->buf, Hex2Byte(uuid + 14)); /* gg - at offset 07 */ |
| 1107 | |
| 1108 | build_append_byte(var->buf, Hex2Byte(uuid + 19)); /* ii - at offset 08 */ |
| 1109 | build_append_byte(var->buf, Hex2Byte(uuid + 21)); /* jj - at offset 09 */ |
| 1110 | |
| 1111 | build_append_byte(var->buf, Hex2Byte(uuid + 24)); /* kk - at offset 10 */ |
| 1112 | build_append_byte(var->buf, Hex2Byte(uuid + 26)); /* ll - at offset 11 */ |
| 1113 | build_append_byte(var->buf, Hex2Byte(uuid + 28)); /* mm - at offset 12 */ |
| 1114 | build_append_byte(var->buf, Hex2Byte(uuid + 30)); /* nn - at offset 13 */ |
| 1115 | build_append_byte(var->buf, Hex2Byte(uuid + 32)); /* oo - at offset 14 */ |
| 1116 | build_append_byte(var->buf, Hex2Byte(uuid + 34)); /* pp - at offset 15 */ |
| 1117 | |
| 1118 | return var; |
| 1119 | } |
| 1120 | |
Shannon Zhao | e1f776c | 2015-05-29 11:28:59 +0100 | [diff] [blame] | 1121 | /* |
| 1122 | * ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode) |
| 1123 | */ |
| 1124 | Aml *aml_unicode(const char *str) |
| 1125 | { |
| 1126 | int i = 0; |
| 1127 | Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER); |
| 1128 | |
| 1129 | do { |
| 1130 | build_append_byte(var->buf, str[i]); |
| 1131 | build_append_byte(var->buf, 0); |
| 1132 | i++; |
| 1133 | } while (i <= strlen(str)); |
| 1134 | |
| 1135 | return var; |
| 1136 | } |
| 1137 | |
Shannon Zhao | 658c271 | 2015-04-03 18:03:34 +0800 | [diff] [blame] | 1138 | void |
| 1139 | build_header(GArray *linker, GArray *table_data, |
| 1140 | AcpiTableHeader *h, const char *sig, int len, uint8_t rev) |
| 1141 | { |
| 1142 | memcpy(&h->signature, sig, 4); |
| 1143 | h->length = cpu_to_le32(len); |
| 1144 | h->revision = rev; |
| 1145 | memcpy(h->oem_id, ACPI_BUILD_APPNAME6, 6); |
| 1146 | memcpy(h->oem_table_id, ACPI_BUILD_APPNAME4, 4); |
| 1147 | memcpy(h->oem_table_id + 4, sig, 4); |
| 1148 | h->oem_revision = cpu_to_le32(1); |
| 1149 | memcpy(h->asl_compiler_id, ACPI_BUILD_APPNAME4, 4); |
| 1150 | h->asl_compiler_revision = cpu_to_le32(1); |
| 1151 | h->checksum = 0; |
| 1152 | /* Checksum to be filled in by Guest linker */ |
| 1153 | bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE, |
| 1154 | table_data->data, h, len, &h->checksum); |
| 1155 | } |
| 1156 | |
| 1157 | void *acpi_data_push(GArray *table_data, unsigned size) |
| 1158 | { |
| 1159 | unsigned off = table_data->len; |
| 1160 | g_array_set_size(table_data, off + size); |
| 1161 | return table_data->data + off; |
| 1162 | } |
| 1163 | |
| 1164 | unsigned acpi_data_len(GArray *table) |
| 1165 | { |
| 1166 | #if GLIB_CHECK_VERSION(2, 22, 0) |
| 1167 | assert(g_array_get_element_size(table) == 1); |
| 1168 | #endif |
| 1169 | return table->len; |
| 1170 | } |
| 1171 | |
| 1172 | void acpi_add_table(GArray *table_offsets, GArray *table_data) |
| 1173 | { |
| 1174 | uint32_t offset = cpu_to_le32(table_data->len); |
| 1175 | g_array_append_val(table_offsets, offset); |
| 1176 | } |
| 1177 | |
| 1178 | void acpi_build_tables_init(AcpiBuildTables *tables) |
| 1179 | { |
| 1180 | tables->rsdp = g_array_new(false, true /* clear */, 1); |
| 1181 | tables->table_data = g_array_new(false, true /* clear */, 1); |
| 1182 | tables->tcpalog = g_array_new(false, true /* clear */, 1); |
| 1183 | tables->linker = bios_linker_loader_init(); |
| 1184 | } |
| 1185 | |
| 1186 | void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre) |
| 1187 | { |
| 1188 | void *linker_data = bios_linker_loader_cleanup(tables->linker); |
| 1189 | g_free(linker_data); |
| 1190 | g_array_free(tables->rsdp, true); |
| 1191 | g_array_free(tables->table_data, true); |
| 1192 | g_array_free(tables->tcpalog, mfre); |
| 1193 | } |
Shannon Zhao | 243bdb7 | 2015-05-29 11:28:56 +0100 | [diff] [blame] | 1194 | |
| 1195 | /* Build rsdt table */ |
| 1196 | void |
| 1197 | build_rsdt(GArray *table_data, GArray *linker, GArray *table_offsets) |
| 1198 | { |
| 1199 | AcpiRsdtDescriptorRev1 *rsdt; |
| 1200 | size_t rsdt_len; |
| 1201 | int i; |
| 1202 | const int table_data_len = (sizeof(uint32_t) * table_offsets->len); |
| 1203 | |
| 1204 | rsdt_len = sizeof(*rsdt) + table_data_len; |
| 1205 | rsdt = acpi_data_push(table_data, rsdt_len); |
| 1206 | memcpy(rsdt->table_offset_entry, table_offsets->data, table_data_len); |
| 1207 | for (i = 0; i < table_offsets->len; ++i) { |
| 1208 | /* rsdt->table_offset_entry to be filled by Guest linker */ |
| 1209 | bios_linker_loader_add_pointer(linker, |
| 1210 | ACPI_BUILD_TABLE_FILE, |
| 1211 | ACPI_BUILD_TABLE_FILE, |
| 1212 | table_data, &rsdt->table_offset_entry[i], |
| 1213 | sizeof(uint32_t)); |
| 1214 | } |
| 1215 | build_header(linker, table_data, |
| 1216 | (void *)rsdt, "RSDT", rsdt_len, 1); |
| 1217 | } |