acpi_debug.c revision 1.1.4.2 1 /* $NetBSD: acpi_debug.c,v 1.1.4.2 2010/03/11 15:03:22 yamt 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 1.1.4.2 2010/03/11 15:03:22 yamt 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 *node;
69 const char *layer;
70 const char *level;
71 int rv;
72
73 KASSERT(acpi_debug_layer_d == NULL);
74 KASSERT(acpi_debug_level_d == NULL);
75
76 rv = acpi_debug_create();
77
78 if (rv != 0)
79 goto fail;
80
81 rv = sysctl_createv(NULL, 0, NULL, NULL,
82 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
83 NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL);
84
85 if (rv != 0)
86 goto fail;
87
88 rv = sysctl_createv(NULL, 0, NULL, &node,
89 CTLFLAG_PERMANENT, CTLTYPE_NODE, "acpi",
90 NULL, NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL);
91
92 if (rv != 0)
93 goto fail;
94
95 rv = sysctl_createv(NULL, 0, NULL, NULL,
96 CTLFLAG_READWRITE, CTLTYPE_STRING, "debug_layer",
97 SYSCTL_DESCR("ACPI debug layer"),
98 acpi_debug_sysctl_layer, 0, acpi_debug_layer_s, ACPI_DEBUG_MAX,
99 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL);
100
101 if (rv != 0)
102 goto fail;
103
104 rv = sysctl_createv(NULL, 0, NULL, NULL,
105 CTLFLAG_READWRITE, CTLTYPE_STRING, "debug_level",
106 SYSCTL_DESCR("ACPI debug level"),
107 acpi_debug_sysctl_level, 0, acpi_debug_level_s, ACPI_DEBUG_MAX,
108 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL);
109
110 if (rv != 0)
111 goto fail;
112
113 layer = acpi_debug_getkey(acpi_debug_layer_d, AcpiDbgLayer);
114 level = acpi_debug_getkey(acpi_debug_level_d, AcpiDbgLevel);
115
116 (void)memcpy(acpi_debug_layer_s, layer, ACPI_DEBUG_MAX);
117 (void)memcpy(acpi_debug_level_s, level, ACPI_DEBUG_MAX);
118
119 return;
120
121 fail:
122 aprint_error("acpi0: failed to initialize ACPI debug\n");
123 }
124
125 static int
126 acpi_debug_create(void)
127 {
128
129 acpi_debug_layer_d = prop_dictionary_create();
130 acpi_debug_level_d = prop_dictionary_create();
131
132 KASSERT(acpi_debug_layer_d != NULL);
133 KASSERT(acpi_debug_level_d != NULL);
134
135 /*
136 * General components.
137 */
138 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_UTILITIES);
139 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_HARDWARE);
140 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EVENTS);
141 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TABLES);
142 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_NAMESPACE);
143 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_PARSER);
144 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DISPATCHER);
145 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXECUTER);
146 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCES);
147 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DEBUGGER);
148 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_OS_SERVICES);
149 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DISASSEMBLER);
150 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_COMPILER);
151 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TOOLS);
152 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXAMPLE);
153 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DRIVER);
154 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_COMPONENTS);
155
156 /*
157 * NetBSD specific components.
158 */
159 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUS_COMPONENT);
160 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ACAD_COMPONENT);
161 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BAT_COMPONENT);
162 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUTTON_COMPONENT);
163 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EC_COMPONENT);
164 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_LID_COMPONENT);
165 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCE_COMPONENT);
166 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TZ_COMPONENT);
167 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_DRIVERS);
168
169 /*
170 * Debug levels.
171 */
172 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT);
173 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DEBUG_OBJECT);
174 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INFO);
175 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALL_EXCEPTIONS);
176
177 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT_NAMES);
178 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PARSE);
179 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_LOAD);
180 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DISPATCH);
181 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EXEC);
182 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_NAMES);
183 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPREGION);
184 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_BFIELD);
185 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_TABLES);
186 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VALUES);
187 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OBJECTS);
188 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_RESOURCES);
189 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_USER_REQUESTS);
190 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PACKAGE);
191 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY1);
192
193 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALLOCATIONS);
194 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FUNCTIONS);
195 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPTIMIZATIONS);
196 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY2);
197
198 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_MUTEX);
199 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_THREADS);
200 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_IO);
201 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INTERRUPTS);
202 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY3);
203
204 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_AML_DISASSEMBLE);
205 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE_INFO);
206 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FULL_TABLES);
207 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EVENTS);
208 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE);
209
210 /*
211 * The default debug level.
212 */
213 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_DEFAULT);
214
215 /*
216 * A custom ACPI_DEBUG_NONE disables debugging.
217 */
218 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DEBUG_NONE);
219 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_NONE);
220
221 prop_dictionary_make_immutable(acpi_debug_layer_d);
222 prop_dictionary_make_immutable(acpi_debug_level_d);
223
224 return 0;
225 }
226
227 static const char *
228 acpi_debug_getkey(prop_dictionary_t dict, uint32_t arg)
229 {
230 prop_object_iterator_t i;
231 prop_object_t obj, val;
232 const char *key;
233 uint32_t num;
234
235 i = prop_dictionary_iterator(dict);
236
237 while ((obj = prop_object_iterator_next(i)) != NULL) {
238
239 key = prop_dictionary_keysym_cstring_nocopy(obj);
240 val = prop_dictionary_get(dict, key);
241 num = prop_number_unsigned_integer_value(val);
242
243 if (arg == num)
244 return key;
245 }
246
247 return "UNKNOWN";
248 }
249
250 static int
251 acpi_debug_sysctl_layer(SYSCTLFN_ARGS)
252 {
253 char buf[ACPI_DEBUG_MAX];
254 struct sysctlnode node;
255 prop_object_t obj;
256 int error;
257
258 node = *rnode;
259 node.sysctl_data = buf;
260
261 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX);
262
263 error = sysctl_lookup(SYSCTLFN_CALL(&node));
264
265 if (error || newp == NULL)
266 return error;
267
268 obj = prop_dictionary_get(acpi_debug_layer_d, node.sysctl_data);
269
270 if (obj == NULL)
271 return EINVAL;
272
273 AcpiDbgLayer = prop_number_unsigned_integer_value(obj);
274
275 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX);
276
277 return 0;
278 }
279
280 static int
281 acpi_debug_sysctl_level(SYSCTLFN_ARGS)
282 {
283 char buf[ACPI_DEBUG_MAX];
284 struct sysctlnode node;
285 prop_object_t obj;
286 int error;
287
288 node = *rnode;
289 node.sysctl_data = buf;
290
291 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX);
292
293 error = sysctl_lookup(SYSCTLFN_CALL(&node));
294
295 if (error || newp == NULL)
296 return error;
297
298 obj = prop_dictionary_get(acpi_debug_level_d, node.sysctl_data);
299
300 if (obj == NULL)
301 return EINVAL;
302
303 AcpiDbgLevel = prop_number_unsigned_integer_value(obj);
304
305 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX);
306
307 return 0;
308 }
309
310 #endif /* ACPI_DEBUG */
311