X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Fhardware%2Fhwsleep.c;h=4290e0193097d28fd2405b814ac0352a0cf5fb93;hb=c58310bf4933986513020fa90b4190c7492995ae;hp=8181afbd1d4d6830f79e7fa6aa8b346ff89cb723;hpb=e270051d9c6e5f0b31668ec1f0d864ab9920ffca;p=linux-2.6 diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c index 8181afbd1d..4290e01930 100644 --- a/drivers/acpi/hardware/hwsleep.c +++ b/drivers/acpi/hardware/hwsleep.c @@ -192,18 +192,13 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) arg.type = ACPI_TYPE_INTEGER; arg.integer.value = sleep_state; - /* Run the _PTS and _GTS methods */ + /* Run the _PTS method */ status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { return_ACPI_STATUS(status); } - status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - return_ACPI_STATUS(status); - } - /* Setup the argument to _SST */ switch (sleep_state) { @@ -234,10 +229,6 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) "While executing method _SST")); } - /* Disable/Clear all GPEs */ - - status = acpi_hw_disable_all_gpes(); - return_ACPI_STATUS(status); } @@ -262,6 +253,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) struct acpi_bit_register_info *sleep_type_reg_info; struct acpi_bit_register_info *sleep_enable_reg_info; u32 in_value; + struct acpi_object_list arg_list; + union acpi_object arg; acpi_status status; ACPI_FUNCTION_TRACE(acpi_enter_sleep_state); @@ -293,13 +286,13 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) } /* + * 1) Disable/Clear all GPEs * 2) Enable all wakeup GPEs */ status = acpi_hw_disable_all_gpes(); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - acpi_gbl_system_awake_and_running = FALSE; status = acpi_hw_enable_all_wakeup_gpes(); @@ -307,10 +300,21 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) return_ACPI_STATUS(status); } + /* Execute the _GTS method */ + + arg_list.count = 1; + arg_list.pointer = &arg; + arg.type = ACPI_TYPE_INTEGER; + arg.integer.value = sleep_state; + + status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + return_ACPI_STATUS(status); + } + /* Get current value of PM1A control */ - status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); + status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -337,15 +341,13 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) /* Write #1: fill in SLP_TYP data */ - status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1A_CONTROL, + status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1B_CONTROL, + status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -360,15 +362,13 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); - status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1A_CONTROL, + status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1B_CONTROL, + status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -388,8 +388,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) */ acpi_os_stall(10000000); - status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_CONTROL, + status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL, sleep_enable_reg_info-> access_bit_mask); if (ACPI_FAILURE(status)) { @@ -400,7 +399,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) /* Wait until we enter sleep state */ do { - status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value); + status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS, + &in_value); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -478,17 +478,18 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios) /******************************************************************************* * - * FUNCTION: acpi_leave_sleep_state + * FUNCTION: acpi_leave_sleep_state_prep * - * PARAMETERS: sleep_state - Which sleep state we just exited + * PARAMETERS: sleep_state - Which sleep state we are exiting * * RETURN: Status * - * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep - * Called with interrupts ENABLED. + * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a + * sleep. + * Called with interrupts DISABLED. * ******************************************************************************/ -acpi_status acpi_leave_sleep_state(u8 sleep_state) +acpi_status acpi_leave_sleep_state_prep(u8 sleep_state) { struct acpi_object_list arg_list; union acpi_object arg; @@ -498,7 +499,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) u32 PM1Acontrol; u32 PM1Bcontrol; - ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); + ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep); /* * Set SLP_TYPE and SLP_EN to state S0. @@ -516,8 +517,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) /* Get current value of PM1A control */ - status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_CONTROL, + status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); if (ACPI_SUCCESS(status)) { @@ -539,15 +539,48 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) /* Just ignore any errors */ - (void)acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1A_CONTROL, + (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol); - (void)acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1B_CONTROL, + (void)acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol); } } + /* Execute the _BFS method */ + + arg_list.count = 1; + arg_list.pointer = &arg; + arg.type = ACPI_TYPE_INTEGER; + arg.integer.value = sleep_state; + + status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS")); + } + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_leave_sleep_state + * + * PARAMETERS: sleep_state - Which sleep state we just exited + * + * RETURN: Status + * + * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep + * Called with interrupts ENABLED. + * + ******************************************************************************/ +acpi_status acpi_leave_sleep_state(u8 sleep_state) +{ + struct acpi_object_list arg_list; + union acpi_object arg; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); + /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */ acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID; @@ -566,12 +599,6 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); } - arg.integer.value = sleep_state; - status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS")); - } - /* * GPEs must be enabled before _WAK is called as GPEs * might get fired there @@ -589,6 +616,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) return_ACPI_STATUS(status); } + arg.integer.value = sleep_state; status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));