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Commit b0ed7a91 authored by Lin Ming's avatar Lin Ming Committed by Len Brown
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ACPICA/ACPI: Add new host interfaces for _OSI support 

Adds install/remove interfaces so that the host can dynamically
alter the global _OSI table. Also adds support for _OSI handlers.
Additional support: new debugger command (osi), and test support in
the acpiexec utility. Adds new file, utilities/utosi.c.
ACPICA bugzilla 836.

The Linux OSL _OSI code is also changed.
acpi_osi_setup can't call acpi_install/remove_interface because ACPICA
is not initialized yet at this early time.
So we just save the osi string in acpi_osi_setup and will handle it
later in a new function acpi_osi_setup_late.

http://www.acpica.org/bugzilla/show_bug.cgi?id=836



Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 09387b43

drivers/acpi/acpica/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -44,4 +44,5 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o 


acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \

		utcopy.o utdelete.o utglobal.o utmath.o utobject.o \

		utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o
 
		utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o \

		utosi.o

drivers/acpi/acpica/acdebug.h

+2 −0
Original line number Diff line number Diff line
@@ -105,6 +105,8 @@ void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg); 
acpi_status

acpi_db_display_objects(char *obj_type_arg, char *display_count_arg);



void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg);



acpi_status acpi_db_find_name_in_namespace(char *name_arg);



void acpi_db_set_scope(char *name);

drivers/acpi/acpica/acglobal.h

+6 −0
Original line number Diff line number Diff line
@@ -187,6 +187,10 @@ ACPI_EXTERN u8 acpi_gbl_integer_bit_width; 
ACPI_EXTERN u8 acpi_gbl_integer_byte_width;

ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;



/* Mutex for _OSI support */



ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex;



/* Reader/Writer lock is used for namespace walk and dynamic table unload */



ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
@@ -255,6 +259,7 @@ ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; 
ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;

ACPI_EXTERN void *acpi_gbl_table_handler_context;

ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;

ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;



/* Owner ID support */
@@ -275,6 +280,7 @@ ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; 
ACPI_EXTERN u8 acpi_gbl_events_initialized;

ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;

ACPI_EXTERN u8 acpi_gbl_osi_data;

ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces;



#ifndef DEFINE_ACPI_GLOBALS

drivers/acpi/acpica/aclocal.h

+5 −0
Original line number Diff line number Diff line
@@ -914,9 +914,14 @@ struct acpi_bit_register_info { 


struct acpi_interface_info {

	char *name;

	struct acpi_interface_info *next;

	u8 flags;

	u8 value;

};



#define ACPI_OSI_INVALID                0x01

#define ACPI_OSI_DYNAMIC                0x02



struct acpi_port_info {

	char *name;

	u16 start;

drivers/acpi/acpica/acutils.h

+15 −2
Original line number Diff line number Diff line
@@ -312,8 +312,6 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list); 
/*

 * uteval - object evaluation

 */

acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);



acpi_status

acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,

			char *path,
@@ -394,6 +392,21 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size); 
acpi_status

acpi_ut_get_object_size(union acpi_operand_object *obj, acpi_size * obj_length);



/*

 * utosi - Support for the _OSI predefined control method

 */

acpi_status acpi_ut_initialize_interfaces(void);



void acpi_ut_interface_terminate(void);



acpi_status acpi_ut_install_interface(acpi_string interface_name);



acpi_status acpi_ut_remove_interface(acpi_string interface_name);



struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);



acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);



/*

 * utstate - Generic state creation/cache routines

 */