1 /* $NetBSD: acpi_debug.c,v 1.5 2014/02/25 18:30:09 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Jukka Ruohonen <jruohonen@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 1.5 2014/02/25 18:30:09 pooka 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, "acpi", 82 NULL, NULL, 0, NULL, 0, 83 CTL_HW, CTL_CREATE, CTL_EOL); 84 85 if (rv != 0) 86 goto fail; 87 88 rv = sysctl_createv(NULL, 0, &rnode, &rnode, 89 0, CTLTYPE_NODE, "debug", 90 SYSCTL_DESCR("ACPI debug subtree"), 91 NULL, 0, NULL, 0, 92 CTL_CREATE, CTL_EOL); 93 94 if (rv != 0) 95 goto fail; 96 97 rv = sysctl_createv(NULL, 0, &rnode, NULL, 98 CTLFLAG_READWRITE, CTLTYPE_STRING, "layer", 99 SYSCTL_DESCR("ACPI debug layer"), 100 acpi_debug_sysctl_layer, 0, acpi_debug_layer_s, ACPI_DEBUG_MAX, 101 CTL_CREATE, CTL_EOL); 102 103 if (rv != 0) 104 goto fail; 105 106 rv = sysctl_createv(NULL, 0, &rnode, NULL, 107 CTLFLAG_READWRITE, CTLTYPE_STRING, "level", 108 SYSCTL_DESCR("ACPI debug level"), 109 acpi_debug_sysctl_level, 0, acpi_debug_level_s, ACPI_DEBUG_MAX, 110 CTL_CREATE, CTL_EOL); 111 112 if (rv != 0) 113 goto fail; 114 115 rv = sysctl_createv(NULL, 0, &rnode, NULL, 116 CTLFLAG_READWRITE, CTLTYPE_BOOL, "object", 117 SYSCTL_DESCR("ACPI debug object"), 118 NULL, 0, &AcpiGbl_EnableAmlDebugObject, 0, 119 CTL_CREATE, CTL_EOL); 120 121 if (rv != 0) 122 goto fail; 123 124 layer = acpi_debug_getkey(acpi_debug_layer_d, AcpiDbgLayer); 125 level = acpi_debug_getkey(acpi_debug_level_d, AcpiDbgLevel); 126 127 (void)memcpy(acpi_debug_layer_s, layer, ACPI_DEBUG_MAX); 128 (void)memcpy(acpi_debug_level_s, level, ACPI_DEBUG_MAX); 129 130 return; 131 132 fail: 133 aprint_error("acpi0: failed to initialize ACPI debug\n"); 134 } 135 136 static int 137 acpi_debug_create(void) 138 { 139 140 acpi_debug_layer_d = prop_dictionary_create(); 141 acpi_debug_level_d = prop_dictionary_create(); 142 143 KASSERT(acpi_debug_layer_d != NULL); 144 KASSERT(acpi_debug_level_d != NULL); 145 146 /* 147 * General components. 148 */ 149 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_UTILITIES); 150 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_HARDWARE); 151 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EVENTS); 152 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TABLES); 153 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_NAMESPACE); 154 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_PARSER); 155 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DISPATCHER); 156 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXECUTER); 157 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCES); 158 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DEBUGGER); 159 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_OS_SERVICES); 160 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_CA_DISASSEMBLER); 161 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_COMPILER); 162 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TOOLS); 163 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EXAMPLE); 164 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DRIVER); 165 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_COMPONENTS); 166 167 /* 168 * NetBSD specific components. 169 */ 170 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUS_COMPONENT); 171 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ACAD_COMPONENT); 172 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BAT_COMPONENT); 173 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_BUTTON_COMPONENT); 174 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_EC_COMPONENT); 175 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_LID_COMPONENT); 176 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_RESOURCE_COMPONENT); 177 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_TZ_COMPONENT); 178 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DISPLAY_COMPONENT); 179 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_ALL_DRIVERS); 180 181 /* 182 * Debug levels. 183 */ 184 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT); 185 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DEBUG_OBJECT); 186 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INFO); 187 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALL_EXCEPTIONS); 188 189 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INIT_NAMES); 190 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PARSE); 191 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_LOAD); 192 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_DISPATCH); 193 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EXEC); 194 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_NAMES); 195 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPREGION); 196 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_BFIELD); 197 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_TABLES); 198 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VALUES); 199 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OBJECTS); 200 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_RESOURCES); 201 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_USER_REQUESTS); 202 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_PACKAGE); 203 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY1); 204 205 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_ALLOCATIONS); 206 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FUNCTIONS); 207 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_OPTIMIZATIONS); 208 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY2); 209 210 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_MUTEX); 211 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_THREADS); 212 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_IO); 213 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_INTERRUPTS); 214 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSITY3); 215 216 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_AML_DISASSEMBLE); 217 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE_INFO); 218 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_FULL_TABLES); 219 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_EVENTS); 220 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_LV_VERBOSE); 221 222 /* 223 * The default debug level. 224 */ 225 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_DEFAULT); 226 227 /* 228 * A custom ACPI_DEBUG_NONE disables debugging. 229 */ 230 ACPI_DEBUG_ADD(acpi_debug_layer_d, ACPI_DEBUG_NONE); 231 ACPI_DEBUG_ADD(acpi_debug_level_d, ACPI_DEBUG_NONE); 232 233 prop_dictionary_make_immutable(acpi_debug_layer_d); 234 prop_dictionary_make_immutable(acpi_debug_level_d); 235 236 return 0; 237 } 238 239 static const char * 240 acpi_debug_getkey(prop_dictionary_t dict, uint32_t arg) 241 { 242 prop_object_iterator_t i; 243 prop_object_t obj, val; 244 const char *key; 245 uint32_t num; 246 247 i = prop_dictionary_iterator(dict); 248 249 while ((obj = prop_object_iterator_next(i)) != NULL) { 250 251 key = prop_dictionary_keysym_cstring_nocopy(obj); 252 val = prop_dictionary_get(dict, key); 253 num = prop_number_unsigned_integer_value(val); 254 255 if (arg == num) 256 return key; 257 } 258 259 return "UNKNOWN"; 260 } 261 262 static int 263 acpi_debug_sysctl_layer(SYSCTLFN_ARGS) 264 { 265 char buf[ACPI_DEBUG_MAX]; 266 struct sysctlnode node; 267 prop_object_t obj; 268 int error; 269 270 node = *rnode; 271 node.sysctl_data = buf; 272 273 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX); 274 275 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 276 277 if (error || newp == NULL) 278 return error; 279 280 obj = prop_dictionary_get(acpi_debug_layer_d, node.sysctl_data); 281 282 if (obj == NULL) 283 return EINVAL; 284 285 AcpiDbgLayer = prop_number_unsigned_integer_value(obj); 286 287 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX); 288 289 return 0; 290 } 291 292 static int 293 acpi_debug_sysctl_level(SYSCTLFN_ARGS) 294 { 295 char buf[ACPI_DEBUG_MAX]; 296 struct sysctlnode node; 297 prop_object_t obj; 298 int error; 299 300 node = *rnode; 301 node.sysctl_data = buf; 302 303 (void)memcpy(node.sysctl_data, rnode->sysctl_data, ACPI_DEBUG_MAX); 304 305 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 306 307 if (error || newp == NULL) 308 return error; 309 310 obj = prop_dictionary_get(acpi_debug_level_d, node.sysctl_data); 311 312 if (obj == NULL) 313 return EINVAL; 314 315 AcpiDbgLevel = prop_number_unsigned_integer_value(obj); 316 317 (void)memcpy(rnode->sysctl_data, node.sysctl_data, ACPI_DEBUG_MAX); 318 319 return 0; 320 } 321 322 #endif /* ACPI_DEBUG */ 323