diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/acpi/tables/tbgetall.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/acpi/tables/tbgetall.c')
-rw-r--r-- | drivers/acpi/tables/tbgetall.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c new file mode 100644 index 000000000000..adc4270988bc --- /dev/null +++ b/drivers/acpi/tables/tbgetall.c | |||
@@ -0,0 +1,313 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Module Name: tbgetall - Get all required ACPI tables | ||
4 | * | ||
5 | *****************************************************************************/ | ||
6 | |||
7 | /* | ||
8 | * Copyright (C) 2000 - 2005, R. Byron Moore | ||
9 | * All rights reserved. | ||
10 | * | ||
11 | * Redistribution and use in source and binary forms, with or without | ||
12 | * modification, are permitted provided that the following conditions | ||
13 | * are met: | ||
14 | * 1. Redistributions of source code must retain the above copyright | ||
15 | * notice, this list of conditions, and the following disclaimer, | ||
16 | * without modification. | ||
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
18 | * substantially similar to the "NO WARRANTY" disclaimer below | ||
19 | * ("Disclaimer") and any redistribution must be conditioned upon | ||
20 | * including a substantially similar Disclaimer requirement for further | ||
21 | * binary redistribution. | ||
22 | * 3. Neither the names of the above-listed copyright holders nor the names | ||
23 | * of any contributors may be used to endorse or promote products derived | ||
24 | * from this software without specific prior written permission. | ||
25 | * | ||
26 | * Alternatively, this software may be distributed under the terms of the | ||
27 | * GNU General Public License ("GPL") version 2 as published by the Free | ||
28 | * Software Foundation. | ||
29 | * | ||
30 | * NO WARRANTY | ||
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
41 | * POSSIBILITY OF SUCH DAMAGES. | ||
42 | */ | ||
43 | |||
44 | |||
45 | #include <acpi/acpi.h> | ||
46 | #include <acpi/actables.h> | ||
47 | |||
48 | |||
49 | #define _COMPONENT ACPI_TABLES | ||
50 | ACPI_MODULE_NAME ("tbgetall") | ||
51 | |||
52 | |||
53 | /******************************************************************************* | ||
54 | * | ||
55 | * FUNCTION: acpi_tb_get_primary_table | ||
56 | * | ||
57 | * PARAMETERS: Address - Physical address of table to retrieve | ||
58 | * *table_info - Where the table info is returned | ||
59 | * | ||
60 | * RETURN: Status | ||
61 | * | ||
62 | * DESCRIPTION: Maps the physical address of table into a logical address | ||
63 | * | ||
64 | ******************************************************************************/ | ||
65 | |||
66 | acpi_status | ||
67 | acpi_tb_get_primary_table ( | ||
68 | struct acpi_pointer *address, | ||
69 | struct acpi_table_desc *table_info) | ||
70 | { | ||
71 | acpi_status status; | ||
72 | struct acpi_table_header header; | ||
73 | |||
74 | |||
75 | ACPI_FUNCTION_TRACE ("tb_get_primary_table"); | ||
76 | |||
77 | |||
78 | /* Ignore a NULL address in the RSDT */ | ||
79 | |||
80 | if (!address->pointer.value) { | ||
81 | return_ACPI_STATUS (AE_OK); | ||
82 | } | ||
83 | |||
84 | /* | ||
85 | * Get the header in order to get signature and table size | ||
86 | */ | ||
87 | status = acpi_tb_get_table_header (address, &header); | ||
88 | if (ACPI_FAILURE (status)) { | ||
89 | return_ACPI_STATUS (status); | ||
90 | } | ||
91 | |||
92 | /* Clear the table_info */ | ||
93 | |||
94 | ACPI_MEMSET (table_info, 0, sizeof (struct acpi_table_desc)); | ||
95 | |||
96 | /* | ||
97 | * Check the table signature and make sure it is recognized. | ||
98 | * Also checks the header checksum | ||
99 | */ | ||
100 | table_info->pointer = &header; | ||
101 | status = acpi_tb_recognize_table (table_info, ACPI_TABLE_PRIMARY); | ||
102 | if (ACPI_FAILURE (status)) { | ||
103 | return_ACPI_STATUS (status); | ||
104 | } | ||
105 | |||
106 | /* Get the entire table */ | ||
107 | |||
108 | status = acpi_tb_get_table_body (address, &header, table_info); | ||
109 | if (ACPI_FAILURE (status)) { | ||
110 | return_ACPI_STATUS (status); | ||
111 | } | ||
112 | |||
113 | /* Install the table */ | ||
114 | |||
115 | status = acpi_tb_install_table (table_info); | ||
116 | return_ACPI_STATUS (status); | ||
117 | } | ||
118 | |||
119 | |||
120 | /******************************************************************************* | ||
121 | * | ||
122 | * FUNCTION: acpi_tb_get_secondary_table | ||
123 | * | ||
124 | * PARAMETERS: Address - Physical address of table to retrieve | ||
125 | * *table_info - Where the table info is returned | ||
126 | * | ||
127 | * RETURN: Status | ||
128 | * | ||
129 | * DESCRIPTION: Maps the physical address of table into a logical address | ||
130 | * | ||
131 | ******************************************************************************/ | ||
132 | |||
133 | acpi_status | ||
134 | acpi_tb_get_secondary_table ( | ||
135 | struct acpi_pointer *address, | ||
136 | acpi_string signature, | ||
137 | struct acpi_table_desc *table_info) | ||
138 | { | ||
139 | acpi_status status; | ||
140 | struct acpi_table_header header; | ||
141 | |||
142 | |||
143 | ACPI_FUNCTION_TRACE_STR ("tb_get_secondary_table", signature); | ||
144 | |||
145 | |||
146 | /* Get the header in order to match the signature */ | ||
147 | |||
148 | status = acpi_tb_get_table_header (address, &header); | ||
149 | if (ACPI_FAILURE (status)) { | ||
150 | return_ACPI_STATUS (status); | ||
151 | } | ||
152 | |||
153 | /* Signature must match request */ | ||
154 | |||
155 | if (ACPI_STRNCMP (header.signature, signature, ACPI_NAME_SIZE)) { | ||
156 | ACPI_REPORT_ERROR (("Incorrect table signature - wanted [%s] found [%4.4s]\n", | ||
157 | signature, header.signature)); | ||
158 | return_ACPI_STATUS (AE_BAD_SIGNATURE); | ||
159 | } | ||
160 | |||
161 | /* | ||
162 | * Check the table signature and make sure it is recognized. | ||
163 | * Also checks the header checksum | ||
164 | */ | ||
165 | table_info->pointer = &header; | ||
166 | status = acpi_tb_recognize_table (table_info, ACPI_TABLE_SECONDARY); | ||
167 | if (ACPI_FAILURE (status)) { | ||
168 | return_ACPI_STATUS (status); | ||
169 | } | ||
170 | |||
171 | /* Get the entire table */ | ||
172 | |||
173 | status = acpi_tb_get_table_body (address, &header, table_info); | ||
174 | if (ACPI_FAILURE (status)) { | ||
175 | return_ACPI_STATUS (status); | ||
176 | } | ||
177 | |||
178 | /* Install the table */ | ||
179 | |||
180 | status = acpi_tb_install_table (table_info); | ||
181 | return_ACPI_STATUS (status); | ||
182 | } | ||
183 | |||
184 | |||
185 | /******************************************************************************* | ||
186 | * | ||
187 | * FUNCTION: acpi_tb_get_required_tables | ||
188 | * | ||
189 | * PARAMETERS: None | ||
190 | * | ||
191 | * RETURN: Status | ||
192 | * | ||
193 | * DESCRIPTION: Load and validate tables other than the RSDT. The RSDT must | ||
194 | * already be loaded and validated. | ||
195 | * | ||
196 | * Get the minimum set of ACPI tables, namely: | ||
197 | * | ||
198 | * 1) FADT (via RSDT in loop below) | ||
199 | * 2) FACS (via FADT) | ||
200 | * 3) DSDT (via FADT) | ||
201 | * | ||
202 | ******************************************************************************/ | ||
203 | |||
204 | acpi_status | ||
205 | acpi_tb_get_required_tables ( | ||
206 | void) | ||
207 | { | ||
208 | acpi_status status = AE_OK; | ||
209 | u32 i; | ||
210 | struct acpi_table_desc table_info; | ||
211 | struct acpi_pointer address; | ||
212 | |||
213 | |||
214 | ACPI_FUNCTION_TRACE ("tb_get_required_tables"); | ||
215 | |||
216 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%d ACPI tables in RSDT\n", | ||
217 | acpi_gbl_rsdt_table_count)); | ||
218 | |||
219 | |||
220 | address.pointer_type = acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING; | ||
221 | |||
222 | /* | ||
223 | * Loop through all table pointers found in RSDT. | ||
224 | * This will NOT include the FACS and DSDT - we must get | ||
225 | * them after the loop. | ||
226 | * | ||
227 | * The only tables we are interested in getting here is the FADT and | ||
228 | * any SSDTs. | ||
229 | */ | ||
230 | for (i = 0; i < acpi_gbl_rsdt_table_count; i++) { | ||
231 | /* Get the table address from the common internal XSDT */ | ||
232 | |||
233 | address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i]; | ||
234 | |||
235 | /* | ||
236 | * Get the tables needed by this subsystem (FADT and any SSDTs). | ||
237 | * NOTE: All other tables are completely ignored at this time. | ||
238 | */ | ||
239 | status = acpi_tb_get_primary_table (&address, &table_info); | ||
240 | if ((status != AE_OK) && (status != AE_TABLE_NOT_SUPPORTED)) { | ||
241 | ACPI_REPORT_WARNING (("%s, while getting table at %8.8X%8.8X\n", | ||
242 | acpi_format_exception (status), | ||
243 | ACPI_FORMAT_UINT64 (address.pointer.value))); | ||
244 | } | ||
245 | } | ||
246 | |||
247 | /* We must have a FADT to continue */ | ||
248 | |||
249 | if (!acpi_gbl_FADT) { | ||
250 | ACPI_REPORT_ERROR (("No FADT present in RSDT/XSDT\n")); | ||
251 | return_ACPI_STATUS (AE_NO_ACPI_TABLES); | ||
252 | } | ||
253 | |||
254 | /* | ||
255 | * Convert the FADT to a common format. This allows earlier revisions of the | ||
256 | * table to coexist with newer versions, using common access code. | ||
257 | */ | ||
258 | status = acpi_tb_convert_table_fadt (); | ||
259 | if (ACPI_FAILURE (status)) { | ||
260 | ACPI_REPORT_ERROR (("Could not convert FADT to internal common format\n")); | ||
261 | return_ACPI_STATUS (status); | ||
262 | } | ||
263 | |||
264 | /* | ||
265 | * Get the FACS (Pointed to by the FADT) | ||
266 | */ | ||
267 | address.pointer.value = acpi_gbl_FADT->xfirmware_ctrl; | ||
268 | |||
269 | status = acpi_tb_get_secondary_table (&address, FACS_SIG, &table_info); | ||
270 | if (ACPI_FAILURE (status)) { | ||
271 | ACPI_REPORT_ERROR (("Could not get/install the FACS, %s\n", | ||
272 | acpi_format_exception (status))); | ||
273 | return_ACPI_STATUS (status); | ||
274 | } | ||
275 | |||
276 | /* | ||
277 | * Create the common FACS pointer table | ||
278 | * (Contains pointers to the original table) | ||
279 | */ | ||
280 | status = acpi_tb_build_common_facs (&table_info); | ||
281 | if (ACPI_FAILURE (status)) { | ||
282 | return_ACPI_STATUS (status); | ||
283 | } | ||
284 | |||
285 | /* | ||
286 | * Get/install the DSDT (Pointed to by the FADT) | ||
287 | */ | ||
288 | address.pointer.value = acpi_gbl_FADT->Xdsdt; | ||
289 | |||
290 | status = acpi_tb_get_secondary_table (&address, DSDT_SIG, &table_info); | ||
291 | if (ACPI_FAILURE (status)) { | ||
292 | ACPI_REPORT_ERROR (("Could not get/install the DSDT\n")); | ||
293 | return_ACPI_STATUS (status); | ||
294 | } | ||
295 | |||
296 | /* Set Integer Width (32/64) based upon DSDT revision */ | ||
297 | |||
298 | acpi_ut_set_integer_width (acpi_gbl_DSDT->revision); | ||
299 | |||
300 | /* Dump the entire DSDT */ | ||
301 | |||
302 | ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, | ||
303 | "Hex dump of entire DSDT, size %d (0x%X), Integer width = %d\n", | ||
304 | acpi_gbl_DSDT->length, acpi_gbl_DSDT->length, acpi_gbl_integer_bit_width)); | ||
305 | ACPI_DUMP_BUFFER ((u8 *) acpi_gbl_DSDT, acpi_gbl_DSDT->length); | ||
306 | |||
307 | /* Always delete the RSDP mapping, we are done with it */ | ||
308 | |||
309 | acpi_tb_delete_tables_by_type (ACPI_TABLE_RSDP); | ||
310 | return_ACPI_STATUS (status); | ||
311 | } | ||
312 | |||
313 | |||