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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: utinit - Common ACPI subsystem initialization | |
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/acnamesp.h> | |
47 | #include <acpi/acevents.h> | |
48 | ||
49 | #define _COMPONENT ACPI_UTILITIES | |
50 | ACPI_MODULE_NAME ("utinit") | |
51 | ||
52 | ||
53 | /******************************************************************************* | |
54 | * | |
55 | * FUNCTION: acpi_ut_fadt_register_error | |
56 | * | |
57 | * PARAMETERS: *register_name - Pointer to string identifying register | |
58 | * Value - Actual register contents value | |
59 | * acpi_test_spec_section - TDS section containing assertion | |
60 | * acpi_assertion - Assertion number being tested | |
61 | * | |
62 | * RETURN: AE_BAD_VALUE | |
63 | * | |
64 | * DESCRIPTION: Display failure message and link failure to TDS assertion | |
65 | * | |
66 | ******************************************************************************/ | |
67 | ||
68 | static void | |
69 | acpi_ut_fadt_register_error ( | |
70 | char *register_name, | |
71 | u32 value, | |
72 | acpi_size offset) | |
73 | { | |
74 | ||
75 | ACPI_REPORT_WARNING ( | |
76 | ("Invalid FADT value %s=%X at offset %X FADT=%p\n", | |
77 | register_name, value, (u32) offset, acpi_gbl_FADT)); | |
78 | } | |
79 | ||
80 | ||
81 | /****************************************************************************** | |
82 | * | |
83 | * FUNCTION: acpi_ut_validate_fadt | |
84 | * | |
85 | * PARAMETERS: None | |
86 | * | |
87 | * RETURN: Status | |
88 | * | |
89 | * DESCRIPTION: Validate various ACPI registers in the FADT | |
90 | * | |
91 | ******************************************************************************/ | |
92 | ||
93 | acpi_status | |
94 | acpi_ut_validate_fadt ( | |
95 | void) | |
96 | { | |
97 | ||
98 | /* | |
99 | * Verify Fixed ACPI Description Table fields, | |
100 | * but don't abort on any problems, just display error | |
101 | */ | |
102 | if (acpi_gbl_FADT->pm1_evt_len < 4) { | |
103 | acpi_ut_fadt_register_error ("PM1_EVT_LEN", | |
104 | (u32) acpi_gbl_FADT->pm1_evt_len, | |
105 | ACPI_FADT_OFFSET (pm1_evt_len)); | |
106 | } | |
107 | ||
108 | if (!acpi_gbl_FADT->pm1_cnt_len) { | |
109 | acpi_ut_fadt_register_error ("PM1_CNT_LEN", 0, | |
110 | ACPI_FADT_OFFSET (pm1_cnt_len)); | |
111 | } | |
112 | ||
113 | if (!acpi_gbl_FADT->xpm1a_evt_blk.address) { | |
114 | acpi_ut_fadt_register_error ("X_PM1a_EVT_BLK", 0, | |
115 | ACPI_FADT_OFFSET (xpm1a_evt_blk.address)); | |
116 | } | |
117 | ||
118 | if (!acpi_gbl_FADT->xpm1a_cnt_blk.address) { | |
119 | acpi_ut_fadt_register_error ("X_PM1a_CNT_BLK", 0, | |
120 | ACPI_FADT_OFFSET (xpm1a_cnt_blk.address)); | |
121 | } | |
122 | ||
123 | if (!acpi_gbl_FADT->xpm_tmr_blk.address) { | |
124 | acpi_ut_fadt_register_error ("X_PM_TMR_BLK", 0, | |
125 | ACPI_FADT_OFFSET (xpm_tmr_blk.address)); | |
126 | } | |
127 | ||
128 | if ((acpi_gbl_FADT->xpm2_cnt_blk.address && | |
129 | !acpi_gbl_FADT->pm2_cnt_len)) { | |
130 | acpi_ut_fadt_register_error ("PM2_CNT_LEN", | |
131 | (u32) acpi_gbl_FADT->pm2_cnt_len, | |
132 | ACPI_FADT_OFFSET (pm2_cnt_len)); | |
133 | } | |
134 | ||
135 | if (acpi_gbl_FADT->pm_tm_len < 4) { | |
136 | acpi_ut_fadt_register_error ("PM_TM_LEN", | |
137 | (u32) acpi_gbl_FADT->pm_tm_len, | |
138 | ACPI_FADT_OFFSET (pm_tm_len)); | |
139 | } | |
140 | ||
141 | /* Length of GPE blocks must be a multiple of 2 */ | |
142 | ||
143 | if (acpi_gbl_FADT->xgpe0_blk.address && | |
144 | (acpi_gbl_FADT->gpe0_blk_len & 1)) { | |
145 | acpi_ut_fadt_register_error ("(x)GPE0_BLK_LEN", | |
146 | (u32) acpi_gbl_FADT->gpe0_blk_len, | |
147 | ACPI_FADT_OFFSET (gpe0_blk_len)); | |
148 | } | |
149 | ||
150 | if (acpi_gbl_FADT->xgpe1_blk.address && | |
151 | (acpi_gbl_FADT->gpe1_blk_len & 1)) { | |
152 | acpi_ut_fadt_register_error ("(x)GPE1_BLK_LEN", | |
153 | (u32) acpi_gbl_FADT->gpe1_blk_len, | |
154 | ACPI_FADT_OFFSET (gpe1_blk_len)); | |
155 | } | |
156 | ||
157 | return (AE_OK); | |
158 | } | |
159 | ||
160 | ||
161 | /****************************************************************************** | |
162 | * | |
163 | * FUNCTION: acpi_ut_terminate | |
164 | * | |
165 | * PARAMETERS: none | |
166 | * | |
167 | * RETURN: none | |
168 | * | |
169 | * DESCRIPTION: free global memory | |
170 | * | |
171 | ******************************************************************************/ | |
172 | ||
173 | void | |
174 | acpi_ut_terminate (void) | |
175 | { | |
176 | struct acpi_gpe_block_info *gpe_block; | |
177 | struct acpi_gpe_block_info *next_gpe_block; | |
178 | struct acpi_gpe_xrupt_info *gpe_xrupt_info; | |
179 | struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; | |
180 | ||
181 | ||
182 | ACPI_FUNCTION_TRACE ("ut_terminate"); | |
183 | ||
184 | ||
185 | /* Free global tables, etc. */ | |
186 | ||
187 | ||
188 | /* Free global GPE blocks and related info structures */ | |
189 | ||
190 | gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; | |
191 | while (gpe_xrupt_info) { | |
192 | gpe_block = gpe_xrupt_info->gpe_block_list_head; | |
193 | while (gpe_block) { | |
194 | next_gpe_block = gpe_block->next; | |
195 | ACPI_MEM_FREE (gpe_block->event_info); | |
196 | ACPI_MEM_FREE (gpe_block->register_info); | |
197 | ACPI_MEM_FREE (gpe_block); | |
198 | ||
199 | gpe_block = next_gpe_block; | |
200 | } | |
201 | next_gpe_xrupt_info = gpe_xrupt_info->next; | |
202 | ACPI_MEM_FREE (gpe_xrupt_info); | |
203 | gpe_xrupt_info = next_gpe_xrupt_info; | |
204 | } | |
205 | ||
206 | return_VOID; | |
207 | } | |
208 | ||
209 | ||
210 | /******************************************************************************* | |
211 | * | |
212 | * FUNCTION: acpi_ut_subsystem_shutdown | |
213 | * | |
214 | * PARAMETERS: none | |
215 | * | |
216 | * RETURN: none | |
217 | * | |
218 | * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex | |
219 | * objects here -- because the AML debugger may be still running. | |
220 | * | |
221 | ******************************************************************************/ | |
222 | ||
223 | void | |
224 | acpi_ut_subsystem_shutdown (void) | |
225 | { | |
226 | ||
227 | ACPI_FUNCTION_TRACE ("ut_subsystem_shutdown"); | |
228 | ||
229 | /* Just exit if subsystem is already shutdown */ | |
230 | ||
231 | if (acpi_gbl_shutdown) { | |
232 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "ACPI Subsystem is already terminated\n")); | |
233 | return_VOID; | |
234 | } | |
235 | ||
236 | /* Subsystem appears active, go ahead and shut it down */ | |
237 | ||
238 | acpi_gbl_shutdown = TRUE; | |
239 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem...\n")); | |
240 | ||
241 | /* Close the acpi_event Handling */ | |
242 | ||
243 | acpi_ev_terminate (); | |
244 | ||
245 | /* Close the Namespace */ | |
246 | ||
247 | acpi_ns_terminate (); | |
248 | ||
249 | /* Close the globals */ | |
250 | ||
251 | acpi_ut_terminate (); | |
252 | ||
253 | /* Purge the local caches */ | |
254 | ||
255 | (void) acpi_purge_cached_objects (); | |
256 | ||
257 | /* Debug only - display leftover memory allocation, if any */ | |
258 | ||
259 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | |
260 | acpi_ut_dump_allocations (ACPI_UINT32_MAX, NULL); | |
261 | #endif | |
262 | ||
263 | return_VOID; | |
264 | } | |
265 | ||
266 |