acpi_debug.c revision 1.3 1 /* $NetBSD: acpi_debug.c,v 1.3 2010/06/30 07:42:36 jruoho Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Jukka Ruohonen <jruohonen (at) iki.fi>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: acpi_debug.c,v 1.3 2010/06/30 07:42:36 jruoho Exp $");
31
32 #include <sys/param.h>
33 #include <sys/sysctl.h>
34
35 #include <dev/acpi/acpireg.h>
36 #include <dev/acpi/acpivar.h>
37
38 #include <prop/proplib.h>
39
40 #ifdef ACPI_DEBUG
41
42 #define _COMPONENT ACPI_UTILITIES
43 ACPI_MODULE_NAME ("acpi_debug")
44
45 #define ACPI_DEBUG_MAX 64
46 #define ACPI_DEBUG_NONE 0
47
48 #define ACPI_DEBUG_ADD(d, x) \
49 do { \
50 (void)prop_dictionary_set_uint32(d, #x, x); \
51 \
52 } while (/* CONSTCOND */ 0)
53
54
55 static prop_dictionary_t acpi_debug_layer_d;
56 static prop_dictionary_t acpi_debug_level_d;
57 static char acpi_debug_layer_s[ACPI_DEBUG_MAX];
58 static char acpi_debug_level_s[ACPI_DEBUG_MAX];
59
60 static int acpi_debug_create(void);
61 static const char *acpi_debug_getkey(prop_dictionary_t, uint32_t);
62 static int acpi_debug_sysctl_layer(SYSCTLFN_PROTO);
63 static int acpi_debug_sysctl_level(SYSCTLFN_PROTO);
64
65 void
66 acpi_debug_init(void)
67 {
68 const struct sysctlnode *rnode;
69 const char *layer, *level;
70 int rv;
71
72 KASSERT(acpi_debug_layer_d == NULL);
73 KASSERT(acpi_debug_level_d == NULL);
74
75 rv = acpi_debug_create();
76
77 if (rv != 0)
78 goto fail;
79
80 rv = sysctl_createv(NULL, 0, NULL, &rnode,
81 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
82 NULL, NULL, 0, NULL, 0,
83 CTL_HW, CTL_EOL);
84
85 if (rv != 0)
86 goto fail;
87
88 rv = sysctl_createv(NULL, 0, &rnode, &rnode,
89 CTLFLAG_PERMANENT, CTLTYPE_NODE, "acpi",
90 NULL, NULL, 0, NULL, 0,
91 CTL_CREATE, CTL_EOL);
92
93 if (rv != 0)
94 goto fail;
95
96 rv = sysctl_createv(NULL, 0, &rnode, &rnode,
97 0, CTLTYPE_NODE, "debug",
98 SYSCTL_DESCR("ACPI debug subtree"),
99 NULL, 0, NULL, 0,
100 CTL_CREATE, CTL_EOL);
101
102 if (rv != 0)
103 goto fail;
104
105 rv = sysctl_createv(NULL, 0, &rnode, NULL,
106 CTLFLAG_READWRITE, CTLTYPE_STRING, "layer",
107 SYSCTL_DESCR("ACPI debug layer"),
108 acpi_debug_sysctl_layer, 0, acpi_debug_layer_s, ACPI_DEBUG_MAX,
109 CTL_CREATE, CTL_EOL);
110
111 if (rv != 0)
112 goto fail;
113
114 rv = sysctl_createv(NULL, 0, &rnode, NULL,
115 CTLFLAG_READWRITE, CTLTYPE_STRING, "level",
116 SYSCTL_DESCR("ACPI debug level"),
117 acpi_debug_sysctl_level, 0, acpi_debug_level_s, ACPI_DEBUG_MAX,
118 CTL_CREATE, CTL_EOL);
119
120 if (rv != 0)
121 goto fail;
122
123 rv = sysctl_createv(NULL, 0, &rnode, NULL,
124 CTLFLAG_READWRITE, CTLTYPE_BOOL, "object",
125 SYSCTL_DESCR("ACPI debug object"),
126 NULL, 0, &AcpiGbl_EnableAmlDebugObject, 0,
127 CTL_CREATE, CTL_EOL);
128
129 if (rv != 0)
130 goto fail;
131
132 layer = acpi_debug_getkey(acpi_debug_layer_d, AcpiDbgLayer);
133 level = acpi_debug_getkey(acpi_debug_level_d, AcpiDbgLevel);
134
135 (void)memcpy(acpi_debug_layer_s, layer, ACPI_DEBUG_MAX);
136 (void)memcpy(acpi_debug_level_s, level, ACPI_DEBUG_MAX);
137
138 return;
139
140 fail:
141 aprint_error("acpi0: failed to initialize ACPI debug\n");
142 }
143
144 static int
145 acpi_debug_create(void)
146 {
147
148 acpi_debug_layer_d = prop_dictionary_create();
149 acpi_debug_level_d = prop_dictionary_create();
150
151 KASSERT(acpi_debug_layer_d != NULL);
152 KASSERT(acpi_debug_level_d != NULL);
153
154 /*
155 * General components.
156 */
157 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_UTILITIES);
158 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_HARDWARE);
159 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EVENTS);
160 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TABLES);
161 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_NAMESPACE);
162 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_PARSER);
163 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DISPATCHER);
164 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXECUTER);
165 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCES);
166 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DEBUGGER);
167 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_OS_SERVICES);
168 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DISASSEMBLER);
169 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_COMPILER);
170 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TOOLS);
171 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXAMPLE);
172 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DRIVER);
173 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_COMPONENTS);
174
175 /*
176 * NetBSD specific components.
177 */
178 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUS_COMPONENT);
179 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ACAD_COMPONENT);
180 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BAT_COMPONENT);
181 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUTTON_COMPONENT);
182 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EC_COMPONENT);
183 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_LID_COMPONENT);
184 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCE_COMPONENT);
185 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TZ_COMPONENT);
186 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_DRIVERS);
187
188 /*
189 * Debug levels.
190 */
191 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT);
192 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DEBUG_OBJECT);
193 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INFO);
194 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALL_EXCEPTIONS);
195
196 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT_NAMES);
197 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PARSE);
198 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_LOAD);
199 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DISPATCH);
200 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EXEC);
201 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_NAMES);
202 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPREGION);
203 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_BFIELD);
204 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_TABLES);
205 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VALUES);
206 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OBJECTS);
207 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_RESOURCES);
208 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_USER_REQUESTS);
209 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PACKAGE);
210 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY1);
211
212 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALLOCATIONS);
213 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FUNCTIONS);
214 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPTIMIZATIONS);
215 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY2);
216
217 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_MUTEX);
218 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_THREADS);
219 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_IO);
220 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INTERRUPTS);
221 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY3);
222
223 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_AML_DISASSEMBLE);
224 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE_INFO);
225 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FULL_TABLES);
226 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EVENTS);
227 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE);
228
229 /*
230 * The default debug level.
231 */
232 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_DEFAULT);
233
234 /*
235 * A custom ACPI_DEBUG_NONE disables debugging.
236 */
237 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DEBUG_NONE);
238 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_NONE);
239
240 prop_dictionary_make_immutable(acpi_debug_layer_d);
241 prop_dictionary_make_immutable(acpi_debug_level_d);
242
243 return 0;
244 }
245
246 static const char *
247 acpi_debug_getkey(prop_dictionary_t dict, uint32_t arg)
248 {
249 prop_object_iterator_t i;
250 prop_object_t obj, val;
251 const char *key;
252 uint32_t num;
253
254 i = prop_dictionary_iterator(dict);
255
256 while ((obj = prop_object_iterator_next(i)) != NULL) {
257
258 key = prop_dictionary_keysym_cstring_nocopy(obj);
259 val = prop_dictionary_get(dict, key);
260 num = prop_number_unsigned_integer_value(val);
261
262 if (arg == num)
263 return key;
264 }
265
266 return "UNKNOWN";
267 }
268
269 static int
270 acpi_debug_sysctl_layer(SYSCTLFN_ARGS)
271 {
272 char buf[ACPI_DEBUG_MAX];
273 struct sysctlnode node;
274 prop_object_t obj;
275 int error;
276
277 node = *rnode;
278 node.sysctl_data = buf;
279
280 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX);
281
282 error = sysctl_lookup(SYSCTLFN_CALL(&node));
283
284 if (error || newp == NULL)
285 return error;
286
287 obj = prop_dictionary_get(acpi_debug_layer_d, node.sysctl_data);
288
289 if (obj == NULL)
290 return EINVAL;
291
292 AcpiDbgLayer = prop_number_unsigned_integer_value(obj);
293
294 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX);
295
296 return 0;
297 }
298
299 static int
300 acpi_debug_sysctl_level(SYSCTLFN_ARGS)
301 {
302 char buf[ACPI_DEBUG_MAX];
303 struct sysctlnode node;
304 prop_object_t obj;
305 int error;
306
307 node = *rnode;
308 node.sysctl_data = buf;
309
310 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX);
311
312 error = sysctl_lookup(SYSCTLFN_CALL(&node));
313
314 if (error || newp == NULL)
315 return error;
316
317 obj = prop_dictionary_get(acpi_debug_level_d, node.sysctl_data);
318
319 if (obj == NULL)
320 return EINVAL;
321
322 AcpiDbgLevel = prop_number_unsigned_integer_value(obj);
323
324 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX);
325
326 return 0;
327 }
328
329 #endif /* ACPI_DEBUG */
330