patch-2.4.6 linux/drivers/acpi/utilities/utglobal.c

• Lines: 484
• Date: Wed Jun 20 17:47:40 2001
• Orig file: v2.4.5/linux/drivers/acpi/utilities/utglobal.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/utilities/utglobal.c linux/drivers/acpi/utilities/utglobal.c
@@ -0,0 +1,483 @@
+/******************************************************************************
+ *
+ * Module Name: utglobal - Global variables for the ACPI subsystem
+ *              $Revision: 123 $
+ *
+ *****************************************************************************/
+
+/*
+ *  Copyright (C) 2000, 2001 R. Byron Moore
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define DEFINE_ACPI_GLOBALS
+
+#include "acpi.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+#include "amlcode.h"
+
+
+#define _COMPONENT          ACPI_UTILITIES
+	 MODULE_NAME         ("utglobal")
+
+
+/******************************************************************************
+ *
+ * Static global variable initialization.
+ *
+ ******************************************************************************/
+
+/*
+ * We want the debug switches statically initialized so they
+ * are already set when the debugger is entered.
+ */
+
+/* Debug switch - level and trace mask */
+
+u32                         acpi_dbg_level = NORMAL_DEFAULT;
+
+/* Debug switch - layer (component) mask */
+
+u32                         acpi_dbg_layer = ACPI_COMPONENT_DEFAULT;
+u32                         acpi_gbl_nesting_level = 0;
+
+
+/* Debugger globals */
+
+u8                          acpi_gbl_db_terminate_threads = FALSE;
+u8                          acpi_gbl_method_executing = FALSE;
+
+/* System flags */
+
+u32                         acpi_gbl_system_flags = 0;
+u32                         acpi_gbl_startup_flags = 0;
+
+/* System starts unitialized! */
+u8                          acpi_gbl_shutdown = TRUE;
+
+
+u8                          acpi_gbl_decode_to8bit [8] = {1,2,4,8,16,32,64,128};
+
+
+/******************************************************************************
+ *
+ * Namespace globals
+ *
+ ******************************************************************************/
+
+
+/*
+ * Names built-in to the interpreter
+ *
+ * Initial values are currently supported only for types String and Number.
+ * To avoid type punning, both are specified as strings in this table.
+ *
+ * NOTES:
+ * 1) _SB_ is defined to be a device to allow _SB_/_INI to be run
+ *    during the initialization sequence.
+ */
+
+PREDEFINED_NAMES            acpi_gbl_pre_defined_names[] =
+{ {"_GPE",    INTERNAL_TYPE_DEF_ANY},
+	{"_PR_",    INTERNAL_TYPE_DEF_ANY},
+	{"_SB_",    ACPI_TYPE_DEVICE},
+	{"_SI_",    INTERNAL_TYPE_DEF_ANY},
+	{"_TZ_",    INTERNAL_TYPE_DEF_ANY},
+	{"_REV",    ACPI_TYPE_INTEGER, "2"},
+	{"_OS_",    ACPI_TYPE_STRING, ACPI_OS_NAME},
+	{"_GL_",    ACPI_TYPE_MUTEX, "0"},
+	{NULL,      ACPI_TYPE_ANY}           /* Table terminator */
+};
+
+
+/*
+ * Properties of the ACPI Object Types, both internal and external.
+ *
+ * Elements of Acpi_ns_properties are bit significant
+ * and the table is indexed by values of ACPI_OBJECT_TYPE
+ */
+
+u8                          acpi_gbl_ns_properties[] =
+{
+	NSP_NORMAL,                 /* 00 Any              */
+	NSP_NORMAL,                 /* 01 Number           */
+	NSP_NORMAL,                 /* 02 String           */
+	NSP_NORMAL,                 /* 03 Buffer           */
+	NSP_LOCAL,                  /* 04 Package          */
+	NSP_NORMAL,                 /* 05 Field_unit       */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 06 Device           */
+	NSP_LOCAL,                  /* 07 Acpi_event       */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 08 Method           */
+	NSP_LOCAL,                  /* 09 Mutex            */
+	NSP_LOCAL,                  /* 10 Region           */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 11 Power            */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 12 Processor        */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 13 Thermal          */
+	NSP_NORMAL,                 /* 14 Buffer_field     */
+	NSP_NORMAL,                 /* 15 Ddb_handle       */
+	NSP_NORMAL,                 /* 16 Debug Object     */
+	NSP_NORMAL,                 /* 17 Def_field        */
+	NSP_NORMAL,                 /* 18 Bank_field       */
+	NSP_NORMAL,                 /* 19 Index_field      */
+	NSP_NORMAL,                 /* 20 Reference        */
+	NSP_NORMAL,                 /* 21 Alias            */
+	NSP_NORMAL,                 /* 22 Notify           */
+	NSP_NORMAL,                 /* 23 Address Handler  */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 24 Resource Desc    */
+	NSP_NEWSCOPE | NSP_LOCAL,   /* 25 Resource Field   */
+	NSP_NORMAL,                 /* 26 Def_field_defn   */
+	NSP_NORMAL,                 /* 27 Bank_field_defn  */
+	NSP_NORMAL,                 /* 28 Index_field_defn */
+	NSP_NORMAL,                 /* 29 If               */
+	NSP_NORMAL,                 /* 30 Else             */
+	NSP_NORMAL,                 /* 31 While            */
+	NSP_NEWSCOPE,               /* 32 Scope            */
+	NSP_LOCAL,                  /* 33 Def_any          */
+	NSP_NORMAL,                 /* 34 Extra            */
+	NSP_NORMAL                  /* 35 Invalid          */
+};
+
+
+/* Hex to ASCII conversion table */
+
+NATIVE_CHAR                 acpi_gbl_hex_to_ascii[] =
+			  {'0','1','2','3','4','5','6','7',
+			  '8','9','A','B','C','D','E','F'};
+
+
+/******************************************************************************
+ *
+ * Table globals
+ *
+ * NOTE: This table includes ONLY the ACPI tables that the subsystem consumes.
+ * it is NOT an exhaustive list of all possible ACPI tables.  All ACPI tables
+ * that are not used by the subsystem are simply ignored.
+ *
+ ******************************************************************************/
+
+
+ACPI_TABLE_DESC             acpi_gbl_acpi_tables[NUM_ACPI_TABLES];
+
+
+ACPI_TABLE_SUPPORT          acpi_gbl_acpi_table_data[NUM_ACPI_TABLES] =
+{
+	/***********    Name,    Signature,  Signature size,    How many allowed?,   Supported?  Global typed pointer */
+
+	/* RSDP 0 */ {RSDP_NAME, RSDP_SIG, sizeof (RSDP_SIG)-1, ACPI_TABLE_SINGLE,   AE_OK,      NULL},
+	/* DSDT 1 */ {DSDT_SIG,  DSDT_SIG, sizeof (DSDT_SIG)-1, ACPI_TABLE_SINGLE,   AE_OK,      (void **) &acpi_gbl_DSDT},
+	/* FADT 2 */ {FADT_SIG,  FADT_SIG, sizeof (FADT_SIG)-1, ACPI_TABLE_SINGLE,   AE_OK,      (void **) &acpi_gbl_FADT},
+	/* FACS 3 */ {FACS_SIG,  FACS_SIG, sizeof (FACS_SIG)-1, ACPI_TABLE_SINGLE,   AE_OK,      (void **) &acpi_gbl_FACS},
+	/* PSDT 4 */ {PSDT_SIG,  PSDT_SIG, sizeof (PSDT_SIG)-1, ACPI_TABLE_MULTIPLE, AE_OK,      NULL},
+	/* SSDT 5 */ {SSDT_SIG,  SSDT_SIG, sizeof (SSDT_SIG)-1, ACPI_TABLE_MULTIPLE, AE_OK,      NULL},
+	/* XSDT 6 */ {XSDT_SIG,  XSDT_SIG, sizeof (RSDT_SIG)-1, ACPI_TABLE_SINGLE,   AE_OK,      NULL},
+};
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_valid_object_type
+ *
+ * PARAMETERS:  None.
+ *
+ * RETURN:      TRUE if valid object type
+ *
+ * DESCRIPTION: Validate an object type
+ *
+ ****************************************************************************/
+
+u8
+acpi_ut_valid_object_type (
+	u32                     type)
+{
+
+	if (type > ACPI_TYPE_MAX)
+	{
+		if ((type < INTERNAL_TYPE_BEGIN) ||
+			(type > INTERNAL_TYPE_MAX))
+		{
+			return (FALSE);
+		}
+	}
+
+	return (TRUE);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_format_exception
+ *
+ * PARAMETERS:  Status              - Acpi status to be formatted
+ *
+ * RETURN:      Formatted status string
+ *
+ * DESCRIPTION: Convert an ACPI exception to a string
+ *
+ ****************************************************************************/
+
+NATIVE_CHAR *
+acpi_ut_format_exception (
+	ACPI_STATUS             status)
+{
+	NATIVE_CHAR             *exception = "UNKNOWN_STATUS";
+	ACPI_STATUS             sub_status;
+
+
+	sub_status = (status & ~AE_CODE_MASK);
+
+
+	switch (status & AE_CODE_MASK)
+	{
+	case AE_CODE_ENVIRONMENTAL:
+
+		if (sub_status <= AE_CODE_ENV_MAX)
+		{
+			exception = acpi_gbl_exception_names_env [sub_status];
+		}
+		break;
+
+	case AE_CODE_PROGRAMMER:
+
+		if (sub_status <= AE_CODE_PGM_MAX)
+		{
+			exception = acpi_gbl_exception_names_pgm [sub_status -1];
+		}
+		break;
+
+	case AE_CODE_ACPI_TABLES:
+
+		if (sub_status <= AE_CODE_TBL_MAX)
+		{
+			exception = acpi_gbl_exception_names_tbl [sub_status -1];
+		}
+		break;
+
+	case AE_CODE_AML:
+
+		if (sub_status <= AE_CODE_AML_MAX)
+		{
+			exception = acpi_gbl_exception_names_aml [sub_status -1];
+		}
+		break;
+
+	case AE_CODE_CONTROL:
+
+		if (sub_status <= AE_CODE_CTRL_MAX)
+		{
+			exception = acpi_gbl_exception_names_ctrl [sub_status -1];
+		}
+		break;
+
+	default:
+		break;
+	}
+
+
+	return (exception);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_allocate_owner_id
+ *
+ * PARAMETERS:  Id_type         - Type of ID (method or table)
+ *
+ * DESCRIPTION: Allocate a table or method owner id
+ *
+ ***************************************************************************/
+
+ACPI_OWNER_ID
+acpi_ut_allocate_owner_id (
+	u32                     id_type)
+{
+	ACPI_OWNER_ID           owner_id = 0xFFFF;
+
+
+	acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
+
+	switch (id_type)
+	{
+	case OWNER_TYPE_TABLE:
+
+		owner_id = acpi_gbl_next_table_owner_id;
+		acpi_gbl_next_table_owner_id++;
+
+		if (acpi_gbl_next_table_owner_id == FIRST_METHOD_ID)
+		{
+			acpi_gbl_next_table_owner_id = FIRST_TABLE_ID;
+		}
+		break;
+
+
+	case OWNER_TYPE_METHOD:
+
+		owner_id = acpi_gbl_next_method_owner_id;
+		acpi_gbl_next_method_owner_id++;
+
+		if (acpi_gbl_next_method_owner_id == FIRST_TABLE_ID)
+		{
+			acpi_gbl_next_method_owner_id = FIRST_METHOD_ID;
+		}
+		break;
+	}
+
+
+	acpi_ut_release_mutex (ACPI_MTX_CACHES);
+
+	return (owner_id);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    Acpi_ut_init_globals
+ *
+ * PARAMETERS:  none
+ *
+ * DESCRIPTION: Init library globals.  All globals that require specific
+ *              initialization should be initialized here!
+ *
+ ***************************************************************************/
+
+void
+acpi_ut_init_globals (
+	void)
+{
+	u32                     i;
+
+
+	/* ACPI table structure */
+
+	for (i = 0; i < NUM_ACPI_TABLES; i++)
+	{
+		acpi_gbl_acpi_tables[i].prev        = &acpi_gbl_acpi_tables[i];
+		acpi_gbl_acpi_tables[i].next        = &acpi_gbl_acpi_tables[i];
+		acpi_gbl_acpi_tables[i].pointer     = NULL;
+		acpi_gbl_acpi_tables[i].length      = 0;
+		acpi_gbl_acpi_tables[i].allocation  = ACPI_MEM_NOT_ALLOCATED;
+		acpi_gbl_acpi_tables[i].count       = 0;
+	}
+
+
+	/* Address Space handler array */
+
+	for (i = 0; i < ACPI_NUM_ADDRESS_SPACES; i++)
+	{
+		acpi_gbl_address_spaces[i].handler  = NULL;
+		acpi_gbl_address_spaces[i].context  = NULL;
+	}
+
+	/* Mutex locked flags */
+
+	for (i = 0; i < NUM_MTX; i++)
+	{
+		acpi_gbl_acpi_mutex_info[i].mutex   = NULL;
+		acpi_gbl_acpi_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
+		acpi_gbl_acpi_mutex_info[i].use_count = 0;
+	}
+
+	/* Global notify handlers */
+
+	acpi_gbl_sys_notify.handler         = NULL;
+	acpi_gbl_drv_notify.handler         = NULL;
+
+	/* Global "typed" ACPI table pointers */
+
+	acpi_gbl_RSDP                       = NULL;
+	acpi_gbl_XSDT                       = NULL;
+	acpi_gbl_FACS                       = NULL;
+	acpi_gbl_FADT                       = NULL;
+	acpi_gbl_DSDT                       = NULL;
+
+
+	/* Global Lock support */
+
+	acpi_gbl_global_lock_acquired       = FALSE;
+	acpi_gbl_global_lock_thread_count   = 0;
+
+	/* Miscellaneous variables */
+
+	acpi_gbl_system_flags               = 0;
+	acpi_gbl_startup_flags              = 0;
+	acpi_gbl_rsdp_original_location     = 0;
+	acpi_gbl_cm_single_step             = FALSE;
+	acpi_gbl_db_terminate_threads       = FALSE;
+	acpi_gbl_shutdown                   = FALSE;
+	acpi_gbl_ns_lookup_count            = 0;
+	acpi_gbl_ps_find_count              = 0;
+	acpi_gbl_acpi_hardware_present      = TRUE;
+	acpi_gbl_next_table_owner_id        = FIRST_TABLE_ID;
+	acpi_gbl_next_method_owner_id       = FIRST_METHOD_ID;
+	acpi_gbl_debugger_configuration     = DEBUGGER_THREADING;
+
+	/* Cache of small "state" objects */
+
+	acpi_gbl_generic_state_cache        = NULL;
+	acpi_gbl_generic_state_cache_depth  = 0;
+	acpi_gbl_state_cache_requests       = 0;
+	acpi_gbl_state_cache_hits           = 0;
+
+	acpi_gbl_parse_cache                = NULL;
+	acpi_gbl_parse_cache_depth          = 0;
+	acpi_gbl_parse_cache_requests       = 0;
+	acpi_gbl_parse_cache_hits           = 0;
+
+	acpi_gbl_ext_parse_cache            = NULL;
+	acpi_gbl_ext_parse_cache_depth      = 0;
+	acpi_gbl_ext_parse_cache_requests   = 0;
+	acpi_gbl_ext_parse_cache_hits       = 0;
+
+	acpi_gbl_object_cache               = NULL;
+	acpi_gbl_object_cache_depth         = 0;
+	acpi_gbl_object_cache_requests      = 0;
+	acpi_gbl_object_cache_hits          = 0;
+
+	acpi_gbl_walk_state_cache           = NULL;
+	acpi_gbl_walk_state_cache_depth     = 0;
+	acpi_gbl_walk_state_cache_requests  = 0;
+	acpi_gbl_walk_state_cache_hits      = 0;
+
+	/* Hardware oriented */
+
+	acpi_gbl_gpe0enable_register_save   = NULL;
+	acpi_gbl_gpe1_enable_register_save  = NULL;
+	acpi_gbl_original_mode              = SYS_MODE_UNKNOWN;   /*  original ACPI/legacy mode   */
+	acpi_gbl_gpe_registers              = NULL;
+	acpi_gbl_gpe_info                   = NULL;
+
+	/* Namespace */
+
+	acpi_gbl_root_node                  = NULL;
+
+	acpi_gbl_root_node_struct.name      = ACPI_ROOT_NAME;
+	acpi_gbl_root_node_struct.data_type = ACPI_DESC_TYPE_NAMED;
+	acpi_gbl_root_node_struct.type      = ACPI_TYPE_ANY;
+	acpi_gbl_root_node_struct.child     = NULL;
+	acpi_gbl_root_node_struct.peer      = NULL;
+	acpi_gbl_root_node_struct.object    = NULL;
+	acpi_gbl_root_node_struct.flags     = ANOBJ_END_OF_PEER_LIST;
+
+	/* Memory allocation metrics - compiled out in non-debug mode. */
+
+	INITIALIZE_ALLOCATION_METRICS();
+
+	return;
+}
+
+