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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