1 /* $NetBSD: acpi_debug.c,v 1.1 2010/01/31 11:26:20 jruoho 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 1.1 2010/01/31 11:26:20 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 *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