summaryrefslogtreecommitdiff
path: root/drivers/acpi/hardware/hwtimer.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/hardware/hwtimer.c')
-rw-r--r--drivers/acpi/hardware/hwtimer.c77
1 files changed, 30 insertions, 47 deletions
diff --git a/drivers/acpi/hardware/hwtimer.c b/drivers/acpi/hardware/hwtimer.c
index 49d7b395322e..aff6dc141784 100644
--- a/drivers/acpi/hardware/hwtimer.c
+++ b/drivers/acpi/hardware/hwtimer.c
@@ -46,8 +46,7 @@
#include <acpi/acpi.h>
#define _COMPONENT ACPI_HARDWARE
- ACPI_MODULE_NAME ("hwtimer")
-
+ACPI_MODULE_NAME("hwtimer")
/******************************************************************************
*
@@ -60,29 +59,23 @@
* DESCRIPTION: Obtains resolution of the ACPI PM Timer (24 or 32 bits).
*
******************************************************************************/
-
-acpi_status
-acpi_get_timer_resolution (
- u32 *resolution)
+acpi_status acpi_get_timer_resolution(u32 * resolution)
{
- ACPI_FUNCTION_TRACE ("acpi_get_timer_resolution");
-
+ ACPI_FUNCTION_TRACE("acpi_get_timer_resolution");
if (!resolution) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
if (0 == acpi_gbl_FADT->tmr_val_ext) {
*resolution = 24;
- }
- else {
+ } else {
*resolution = 32;
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/******************************************************************************
*
* FUNCTION: acpi_get_timer
@@ -95,26 +88,22 @@ acpi_get_timer_resolution (
*
******************************************************************************/
-acpi_status
-acpi_get_timer (
- u32 *ticks)
+acpi_status acpi_get_timer(u32 * ticks)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("acpi_get_timer");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("acpi_get_timer");
if (!ticks) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_hw_low_level_read (32, ticks, &acpi_gbl_FADT->xpm_tmr_blk);
+ status = acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT->xpm_tmr_blk);
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_get_timer);
+EXPORT_SYMBOL(acpi_get_timer);
/******************************************************************************
*
@@ -146,21 +135,16 @@ EXPORT_SYMBOL(acpi_get_timer);
******************************************************************************/
acpi_status
-acpi_get_timer_duration (
- u32 start_ticks,
- u32 end_ticks,
- u32 *time_elapsed)
+acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
{
- acpi_status status;
- u32 delta_ticks;
- acpi_integer quotient;
-
-
- ACPI_FUNCTION_TRACE ("acpi_get_timer_duration");
+ acpi_status status;
+ u32 delta_ticks;
+ acpi_integer quotient;
+ ACPI_FUNCTION_TRACE("acpi_get_timer_duration");
if (!time_elapsed) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/*
@@ -169,22 +153,22 @@ acpi_get_timer_duration (
*/
if (start_ticks < end_ticks) {
delta_ticks = end_ticks - start_ticks;
- }
- else if (start_ticks > end_ticks) {
+ } else if (start_ticks > end_ticks) {
if (0 == acpi_gbl_FADT->tmr_val_ext) {
/* 24-bit Timer */
- delta_ticks = (((0x00FFFFFF - start_ticks) + end_ticks) & 0x00FFFFFF);
- }
- else {
+ delta_ticks =
+ (((0x00FFFFFF - start_ticks) +
+ end_ticks) & 0x00FFFFFF);
+ } else {
/* 32-bit Timer */
delta_ticks = (0xFFFFFFFF - start_ticks) + end_ticks;
}
- }
- else /* start_ticks == end_ticks */ {
+ } else { /* start_ticks == end_ticks */
+
*time_elapsed = 0;
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
/*
@@ -192,12 +176,11 @@ acpi_get_timer_duration (
*
* time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY;
*/
- status = acpi_ut_short_divide (((u64) delta_ticks) * 1000000,
- PM_TIMER_FREQUENCY, &quotient, NULL);
+ status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000,
+ PM_TIMER_FREQUENCY, &quotient, NULL);
*time_elapsed = (u32) quotient;
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
EXPORT_SYMBOL(acpi_get_timer_duration);
-