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path: root/drivers/acpi/hardware/hwacpi.c
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Diffstat (limited to 'drivers/acpi/hardware/hwacpi.c')
-rw-r--r--drivers/acpi/hardware/hwacpi.c56
1 files changed, 9 insertions, 47 deletions
diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c
index de50fab..6031ca1 100644
--- a/drivers/acpi/hardware/hwacpi.c
+++ b/drivers/acpi/hardware/hwacpi.c
@@ -6,7 +6,7 @@
*****************************************************************************/
/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -49,41 +49,6 @@ ACPI_MODULE_NAME("hwacpi")
/******************************************************************************
*
- * FUNCTION: acpi_hw_initialize
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize and validate the various ACPI registers defined in
- * the FADT.
- *
- ******************************************************************************/
-acpi_status acpi_hw_initialize(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_initialize);
-
- /* We must have the ACPI tables by the time we get here */
-
- if (!acpi_gbl_FADT) {
- ACPI_ERROR((AE_INFO, "No FADT is present"));
- return_ACPI_STATUS(AE_NO_ACPI_TABLES);
- }
-
- /* Sanity check the FADT for valid values */
-
- status = acpi_ut_validate_fadt();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/******************************************************************************
- *
* FUNCTION: acpi_hw_set_mode
*
* PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY
@@ -93,7 +58,6 @@ acpi_status acpi_hw_initialize(void)
* DESCRIPTION: Transitions the system into the requested mode.
*
******************************************************************************/
-
acpi_status acpi_hw_set_mode(u32 mode)
{
@@ -106,7 +70,7 @@ acpi_status acpi_hw_set_mode(u32 mode)
* ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
* system does not support mode transition.
*/
- if (!acpi_gbl_FADT->smi_cmd) {
+ if (!acpi_gbl_FADT.smi_command) {
ACPI_ERROR((AE_INFO,
"No SMI_CMD in FADT, mode transition failed"));
return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
@@ -119,7 +83,7 @@ acpi_status acpi_hw_set_mode(u32 mode)
* we make sure both the numbers are zero to determine these
* transitions are not supported.
*/
- if (!acpi_gbl_FADT->acpi_enable && !acpi_gbl_FADT->acpi_disable) {
+ if (!acpi_gbl_FADT.acpi_enable && !acpi_gbl_FADT.acpi_disable) {
ACPI_ERROR((AE_INFO,
"No ACPI mode transition supported in this system (enable/disable both zero)"));
return_ACPI_STATUS(AE_OK);
@@ -130,9 +94,8 @@ acpi_status acpi_hw_set_mode(u32 mode)
/* BIOS should have disabled ALL fixed and GP events */
- status = acpi_os_write_port(acpi_gbl_FADT->smi_cmd,
- (u32) acpi_gbl_FADT->acpi_enable,
- 8);
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ (u32) acpi_gbl_FADT.acpi_enable, 8);
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Attempting to enable ACPI mode\n"));
break;
@@ -143,8 +106,8 @@ acpi_status acpi_hw_set_mode(u32 mode)
* BIOS should clear all fixed status bits and restore fixed event
* enable bits to default
*/
- status = acpi_os_write_port(acpi_gbl_FADT->smi_cmd,
- (u32) acpi_gbl_FADT->acpi_disable,
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ (u32) acpi_gbl_FADT.acpi_disable,
8);
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Attempting to enable Legacy (non-ACPI) mode\n"));
@@ -204,12 +167,11 @@ u32 acpi_hw_get_mode(void)
* ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
* system does not support mode transition.
*/
- if (!acpi_gbl_FADT->smi_cmd) {
+ if (!acpi_gbl_FADT.smi_command) {
return_UINT32(ACPI_SYS_MODE_ACPI);
}
- status =
- acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value, ACPI_MTX_LOCK);
+ status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value);
if (ACPI_FAILURE(status)) {
return_UINT32(ACPI_SYS_MODE_LEGACY);
}