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authorLen Brown <len.brown@intel.com>2009-01-09 06:13:17 +0100
committerLen Brown <len.brown@intel.com>2009-01-09 09:30:47 +0100
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/hardware/hwsleep.c
parentACPICA: delete utcache.c (diff)
downloadlinux-95b482a8d31116f3f5c2a5089569393234d06385.tar.xz
linux-95b482a8d31116f3f5c2a5089569393234d06385.zip
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/hardware/hwsleep.c')
-rw-r--r--drivers/acpi/hardware/hwsleep.c629
1 files changed, 0 insertions, 629 deletions
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
deleted file mode 100644
index 54dd3ee0760c..000000000000
--- a/drivers/acpi/hardware/hwsleep.c
+++ /dev/null
@@ -1,629 +0,0 @@
-
-/******************************************************************************
- *
- * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwsleep")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_firmware_waking_vector
- *
- * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
- * entry point.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector(u32 physical_address)
-{
- ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
-
-
- /*
- * According to the ACPI specification 2.0c and later, the 64-bit
- * waking vector should be cleared and the 32-bit waking vector should
- * be used, unless we want the wake-up code to be called by the BIOS in
- * Protected Mode. Some systems (for example HP dv5-1004nr) are known
- * to fail to resume if the 64-bit vector is used.
- */
-
- /* Set the 32-bit vector */
-
- acpi_gbl_FACS->firmware_waking_vector = physical_address;
-
- /* Clear the 64-bit vector if it exists */
-
- if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
- acpi_gbl_FACS->xfirmware_waking_vector = 0;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_firmware_waking_vector64
- *
- * PARAMETERS: physical_address - 64-bit physical address of ACPI protected
- * mode entry point.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
- * it exists in the table.
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector64(u64 physical_address)
-{
- ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
-
-
- /* Determine if the 64-bit vector actually exists */
-
- if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Clear 32-bit vector, set the 64-bit X_ vector */
-
- acpi_gbl_FACS->firmware_waking_vector = 0;
- acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state_prep
- *
- * PARAMETERS: sleep_state - Which sleep state to enter
- *
- * RETURN: Status
- *
- * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231)
- * This function must execute with interrupts enabled.
- * We break sleeping into 2 stages so that OSPM can handle
- * various OS-specific tasks between the two steps.
- *
- ******************************************************************************/
-acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
-{
- acpi_status status;
- struct acpi_object_list arg_list;
- union acpi_object arg;
-
- ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
-
- /*
- * _PSW methods could be run here to enable wake-on keyboard, LAN, etc.
- */
- status = acpi_get_sleep_type_data(sleep_state,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Setup parameter object */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
-
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- /* 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);
- }
-
- /* Setup the argument to _SST */
-
- switch (sleep_state) {
- case ACPI_STATE_S0:
- arg.integer.value = ACPI_SST_WORKING;
- break;
-
- case ACPI_STATE_S1:
- case ACPI_STATE_S2:
- case ACPI_STATE_S3:
- arg.integer.value = ACPI_SST_SLEEPING;
- break;
-
- case ACPI_STATE_S4:
- arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
- break;
-
- default:
- arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */
- break;
- }
-
- /*
- * Set the system indicators to show the desired sleep state.
- * _SST is an optional method (return no error if not found)
- */
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While executing method _SST"));
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state
- *
- * PARAMETERS: sleep_state - Which sleep state to enter
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
-{
- u32 PM1Acontrol;
- u32 PM1Bcontrol;
- 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);
-
- if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
- (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
- ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X",
- acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
- return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
- }
-
- sleep_type_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
- sleep_enable_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
-
- /* Clear wake status */
-
- status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Clear all fixed and general purpose status bits */
-
- status = acpi_hw_clear_acpi_status();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * 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();
- if (ACPI_FAILURE(status)) {
- 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_REGISTER_PM1_CONTROL, &PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "Entering sleep state [S%d]\n", sleep_state));
-
- /* Clear SLP_EN and SLP_TYP fields */
-
- PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
- sleep_enable_reg_info->access_bit_mask);
- PM1Bcontrol = PM1Acontrol;
-
- /* Insert SLP_TYP bits */
-
- PM1Acontrol |=
- (acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position);
- PM1Bcontrol |=
- (acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position);
-
- /*
- * We split the writes of SLP_TYP and SLP_EN to workaround
- * poorly implemented hardware.
- */
-
- /* Write #1: fill in SLP_TYP data */
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
- PM1Bcontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Insert SLP_ENABLE bit */
-
- PM1Acontrol |= sleep_enable_reg_info->access_bit_mask;
- PM1Bcontrol |= sleep_enable_reg_info->access_bit_mask;
-
- /* Write #2: SLP_TYP + SLP_EN */
-
- ACPI_FLUSH_CPU_CACHE();
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
- PM1Bcontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (sleep_state > ACPI_STATE_S3) {
- /*
- * We wanted to sleep > S3, but it didn't happen (by virtue of the
- * fact that we are still executing!)
- *
- * Wait ten seconds, then try again. This is to get S4/S5 to work on
- * all machines.
- *
- * We wait so long to allow chipsets that poll this reg very slowly to
- * still read the right value. Ideally, this block would go
- * away entirely.
- */
- acpi_os_stall(10000000);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
- sleep_enable_reg_info->
- access_bit_mask);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Wait until we enter sleep state */
-
- do {
- status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS,
- &in_value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Spin until we wake */
-
- } while (!in_value);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state_s4bios
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform a S4 bios request.
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
-{
- u32 in_value;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
-
- status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_clear_acpi_status();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * 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();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_FLUSH_CPU_CACHE();
-
- status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
- (u32) acpi_gbl_FADT.S4bios_request, 8);
-
- do {
- acpi_os_stall(1000);
- status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- } while (!in_value);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_leave_sleep_state_prep
- *
- * PARAMETERS: sleep_state - Which sleep state we are exiting
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
- * sleep.
- * Called with interrupts DISABLED.
- *
- ******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
- struct acpi_bit_register_info *sleep_type_reg_info;
- struct acpi_bit_register_info *sleep_enable_reg_info;
- u32 PM1Acontrol;
- u32 PM1Bcontrol;
-
- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
-
- /*
- * Set SLP_TYPE and SLP_EN to state S0.
- * This is unclear from the ACPI Spec, but it is required
- * by some machines.
- */
- status = acpi_get_sleep_type_data(ACPI_STATE_S0,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_SUCCESS(status)) {
- sleep_type_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
- sleep_enable_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
-
- /* Get current value of PM1A control */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
- &PM1Acontrol);
- if (ACPI_SUCCESS(status)) {
-
- /* Clear SLP_EN and SLP_TYP fields */
-
- PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
- sleep_enable_reg_info->
- access_bit_mask);
- PM1Bcontrol = PM1Acontrol;
-
- /* Insert SLP_TYP bits */
-
- PM1Acontrol |=
- (acpi_gbl_sleep_type_a << sleep_type_reg_info->
- bit_position);
- PM1Bcontrol |=
- (acpi_gbl_sleep_type_b << sleep_type_reg_info->
- bit_position);
-
- /* Just ignore any errors */
-
- (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- (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;
-
- /* Setup parameter object */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
-
- /* Ignore any errors from these methods */
-
- arg.integer.value = ACPI_SST_WAKING;
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
- }
-
- /*
- * GPEs must be enabled before _WAK is called as GPEs
- * might get fired there
- *
- * Restore the GPEs:
- * 1) Disable/Clear all GPEs
- * 2) Enable all runtime GPEs
- */
- status = acpi_hw_disable_all_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- status = acpi_hw_enable_all_runtime_gpes();
- if (ACPI_FAILURE(status)) {
- 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"));
- }
- /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
-
- /*
- * Some BIOSes assume that WAK_STS will be cleared on resume and use
- * it to determine whether the system is rebooting or resuming. Clear
- * it for compatibility.
- */
- acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
-
- acpi_gbl_system_awake_and_running = TRUE;
-
- /* Enable power button */
-
- (void)
- acpi_set_register(acpi_gbl_fixed_event_info
- [ACPI_EVENT_POWER_BUTTON].enable_register_id, 1);
-
- (void)
- acpi_set_register(acpi_gbl_fixed_event_info
- [ACPI_EVENT_POWER_BUTTON].status_register_id, 1);
-
- arg.integer.value = ACPI_SST_WORKING;
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)