X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Fexecuter%2Fexsystem.c;h=68990f1df371df76886f196ecbc5d42a7a867da3;hb=c2a3b233450d5bc426c063ea2d8a74351db29ea4;hp=28aef3e69ecceeff2a2855854d3f59167ea905c5;hpb=a4b47ab9464a8200528fad3101668abdd7379cf9;p=linux-2.6 diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c index 28aef3e69e..68990f1df3 100644 --- a/drivers/acpi/executer/exsystem.c +++ b/drivers/acpi/executer/exsystem.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2006, R. Byron Moore + * Copyright (C) 2000 - 2008, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -44,7 +44,6 @@ #include #include -#include #define _COMPONENT ACPI_EXECUTER ACPI_MODULE_NAME("exsystem") @@ -66,7 +65,6 @@ ACPI_MODULE_NAME("exsystem") acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) { acpi_status status; - acpi_status status2; ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); @@ -79,7 +77,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) /* We must wait, so unlock the interpreter */ - acpi_ex_exit_interpreter(); + acpi_ex_relinquish_interpreter(); status = acpi_os_wait_semaphore(semaphore, 1, timeout); @@ -89,13 +87,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) /* Reacquire the interpreter */ - status2 = acpi_ex_enter_interpreter(); - if (ACPI_FAILURE(status2)) { - - /* Report fatal error, could not acquire interpreter */ - - return_ACPI_STATUS(status2); - } + acpi_ex_reacquire_interpreter(); } return_ACPI_STATUS(status); @@ -119,7 +111,6 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) { acpi_status status; - acpi_status status2; ACPI_FUNCTION_TRACE(ex_system_wait_mutex); @@ -132,7 +123,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) /* We must wait, so unlock the interpreter */ - acpi_ex_exit_interpreter(); + acpi_ex_relinquish_interpreter(); status = acpi_os_acquire_mutex(mutex, timeout); @@ -142,13 +133,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) /* Reacquire the interpreter */ - status2 = acpi_ex_enter_interpreter(); - if (ACPI_FAILURE(status2)) { - - /* Report fatal error, could not acquire interpreter */ - - return_ACPI_STATUS(status2); - } + acpi_ex_reacquire_interpreter(); } return_ACPI_STATUS(status); @@ -209,96 +194,18 @@ acpi_status acpi_ex_system_do_stall(u32 how_long) acpi_status acpi_ex_system_do_suspend(acpi_integer how_long) { - acpi_status status; - ACPI_FUNCTION_ENTRY(); /* Since this thread will sleep, we must release the interpreter */ - acpi_ex_exit_interpreter(); + acpi_ex_relinquish_interpreter(); acpi_os_sleep(how_long); /* And now we must get the interpreter again */ - status = acpi_ex_enter_interpreter(); - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_acquire_mutex - * - * PARAMETERS: time_desc - Maximum time to wait for the mutex - * obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Provides an access point to perform synchronization operations - * within the AML. This function will cause a lock to be generated - * for the Mutex pointed to by obj_desc. - * - ******************************************************************************/ - -acpi_status -acpi_ex_system_acquire_mutex(union acpi_operand_object * time_desc, - union acpi_operand_object * obj_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR(ex_system_acquire_mutex, obj_desc); - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Support for the _GL_ Mutex object -- go get the global lock */ - - if (obj_desc->mutex.os_mutex == ACPI_GLOBAL_LOCK) { - status = - acpi_ev_acquire_global_lock((u16) time_desc->integer.value); - return_ACPI_STATUS(status); - } - - status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex, - (u16) time_desc->integer.value); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_system_release_mutex - * - * PARAMETERS: obj_desc - The object descriptor for this op - * - * RETURN: Status - * - * DESCRIPTION: Provides an access point to perform synchronization operations - * within the AML. This operation is a request to release a - * previously acquired Mutex. If the Mutex variable is set then - * it will be decremented. - * - ******************************************************************************/ - -acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ex_system_release_mutex); - - if (!obj_desc) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Support for the _GL_ Mutex object -- release the global lock */ - - if (obj_desc->mutex.os_mutex == ACPI_GLOBAL_LOCK) { - status = acpi_ev_release_global_lock(); - return_ACPI_STATUS(status); - } - - acpi_os_release_mutex(obj_desc->mutex.os_mutex); - return_ACPI_STATUS(AE_OK); + acpi_ex_reacquire_interpreter(); + return (AE_OK); } /******************************************************************************* @@ -314,7 +221,7 @@ acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc) * ******************************************************************************/ -acpi_status acpi_ex_system_signal_event(union acpi_operand_object *obj_desc) +acpi_status acpi_ex_system_signal_event(union acpi_operand_object * obj_desc) { acpi_status status = AE_OK;