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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.c116
1 files changed, 51 insertions, 65 deletions
diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c
index b51001e74eea..1bb3463d7040 100644
--- a/drivers/acpi/hardware/hwacpi.c
+++ b/drivers/acpi/hardware/hwacpi.c
@@ -42,13 +42,10 @@
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
-
#define _COMPONENT ACPI_HARDWARE
- ACPI_MODULE_NAME ("hwacpi")
-
+ACPI_MODULE_NAME("hwacpi")
/******************************************************************************
*
@@ -62,36 +59,30 @@
* 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, "No FADT is present\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "No FADT is present\n"));
- return_ACPI_STATUS (AE_NO_ACPI_TABLES);
+ 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
@@ -104,24 +95,21 @@ acpi_hw_initialize (
*
******************************************************************************/
-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_REPORT_ERROR(("No SMI_CMD in FADT, mode transition failed.\n"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
/*
@@ -132,9 +120,8 @@ acpi_hw_set_mode (
* 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_REPORT_ERROR(("No ACPI mode transition supported in this system (enable/disable both zero)\n"));
+ return_ACPI_STATUS(AE_OK);
}
switch (mode) {
@@ -142,9 +129,11 @@ acpi_hw_set_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:
@@ -153,20 +142,21 @@ acpi_hw_set_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, 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_REPORT_ERROR(("Could not write mode change, %s\n",
+ acpi_format_exception(status)));
+ return_ACPI_STATUS(status);
}
/*
@@ -176,19 +166,19 @@ acpi_hw_set_mode (
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_REPORT_ERROR(("Hardware never changed modes\n"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_hw_get_mode
@@ -202,34 +192,30 @@ acpi_hw_set_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_VALUE(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_VALUE(ACPI_SYS_MODE_LEGACY);
}
if (value) {
- return_VALUE (ACPI_SYS_MODE_ACPI);
- }
- else {
- return_VALUE (ACPI_SYS_MODE_LEGACY);
+ return_VALUE(ACPI_SYS_MODE_ACPI);
+ } else {
+ return_VALUE(ACPI_SYS_MODE_LEGACY);
}
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-01 05:04:21 +0000