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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