*****************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
-
#define _COMPONENT ACPI_HARDWARE
- ACPI_MODULE_NAME ("hwacpi")
-
+ACPI_MODULE_NAME("hwacpi")
/******************************************************************************
*
*
* RETURN: Status
*
- * DESCRIPTION: Initialize and validate various ACPI registers
+ * DESCRIPTION: Initialize and validate the various ACPI registers defined in
+ * the FADT.
*
******************************************************************************/
-
-acpi_status
-acpi_hw_initialize (
- void)
+acpi_status acpi_hw_initialize(void)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("hw_initialize");
+ 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_DEBUG_PRINT ((ACPI_DB_ERROR, "A FADT is not loaded\n"));
-
- return_ACPI_STATUS (AE_NO_ACPI_TABLES);
+ 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);
+ status = acpi_ut_validate_fadt();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/******************************************************************************
*
* FUNCTION: acpi_hw_set_mode
*
******************************************************************************/
-acpi_status
-acpi_hw_set_mode (
- u32 mode)
+acpi_status acpi_hw_set_mode(u32 mode)
{
- acpi_status status;
- u32 retry;
-
+ acpi_status status;
+ u32 retry;
- ACPI_FUNCTION_TRACE ("hw_set_mode");
+ ACPI_FUNCTION_TRACE("hw_set_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) {
- ACPI_REPORT_ERROR (("No SMI_CMD in FADT, mode transition failed.\n"));
- return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
+ ACPI_ERROR((AE_INFO,
+ "No SMI_CMD in FADT, mode transition failed"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
/*
* transitions are not supported.
*/
if (!acpi_gbl_FADT->acpi_enable && !acpi_gbl_FADT->acpi_disable) {
- ACPI_REPORT_ERROR (("No ACPI mode transition supported in this system (enable/disable both zero)\n"));
- return_ACPI_STATUS (AE_OK);
+ ACPI_ERROR((AE_INFO,
+ "No ACPI mode transition supported in this system (enable/disable both zero)"));
+ return_ACPI_STATUS(AE_OK);
}
switch (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);
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Attempting to enable ACPI mode\n"));
+ status = acpi_os_write_port(acpi_gbl_FADT->smi_cmd,
+ (u32) acpi_gbl_FADT->acpi_enable,
+ 8);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Attempting to enable ACPI mode\n"));
break;
case ACPI_SYS_MODE_LEGACY:
* 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, 8);
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
- "Attempting to enable Legacy (non-ACPI) mode\n"));
+ status = acpi_os_write_port(acpi_gbl_FADT->smi_cmd,
+ (u32) acpi_gbl_FADT->acpi_disable,
+ 8);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Attempting to enable Legacy (non-ACPI) mode\n"));
break;
default:
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- if (ACPI_FAILURE (status)) {
- ACPI_REPORT_ERROR (("Could not write mode change, %s\n", acpi_format_exception (status)));
- return_ACPI_STATUS (status);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not write ACPI mode change"));
+ return_ACPI_STATUS(status);
}
/*
retry = 3000;
while (retry) {
if (acpi_hw_get_mode() == mode) {
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Mode %X successfully enabled\n", mode));
- return_ACPI_STATUS (AE_OK);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Mode %X successfully enabled\n",
+ mode));
+ return_ACPI_STATUS(AE_OK);
}
acpi_os_stall(1000);
retry--;
}
- ACPI_REPORT_ERROR (("Hardware never changed modes\n"));
- return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
+ ACPI_ERROR((AE_INFO, "Hardware did not change modes"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
-
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_hw_get_mode
*
*
******************************************************************************/
-u32
-acpi_hw_get_mode (void)
+u32 acpi_hw_get_mode(void)
{
- acpi_status status;
- u32 value;
-
-
- ACPI_FUNCTION_TRACE ("hw_get_mode");
+ acpi_status status;
+ u32 value;
+ ACPI_FUNCTION_TRACE("hw_get_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) {
- return_VALUE (ACPI_SYS_MODE_ACPI);
+ return_UINT32(ACPI_SYS_MODE_ACPI);
}
- status = acpi_get_register (ACPI_BITREG_SCI_ENABLE, &value, ACPI_MTX_LOCK);
- if (ACPI_FAILURE (status)) {
- return_VALUE (ACPI_SYS_MODE_LEGACY);
+ status =
+ acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value, ACPI_MTX_LOCK);
+ if (ACPI_FAILURE(status)) {
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
}
if (value) {
- return_VALUE (ACPI_SYS_MODE_ACPI);
- }
- else {
- return_VALUE (ACPI_SYS_MODE_LEGACY);
+ return_UINT32(ACPI_SYS_MODE_ACPI);
+ } else {
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
}
}
git://git.onelab.eu / linux-2.6.git / blobdiff