summaryrefslogtreecommitdiffstats
path: root/drivers/acpi/hardware
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/hardware')
-rw-r--r--drivers/acpi/hardware/hwacpi.c19
-rw-r--r--drivers/acpi/hardware/hwgpe.c31
-rw-r--r--drivers/acpi/hardware/hwregs.c114
-rw-r--r--drivers/acpi/hardware/hwsleep.c101
-rw-r--r--drivers/acpi/hardware/hwtimer.c4
5 files changed, 156 insertions, 113 deletions
diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c
index 529e922bdc8..b51001e74ee 100644
--- a/drivers/acpi/hardware/hwacpi.c
+++ b/drivers/acpi/hardware/hwacpi.c
@@ -58,7 +58,8 @@
*
* RETURN: Status
*
- * DESCRIPTION: Initialize and validate various ACPI registers
+ * DESCRIPTION: Initialize and validate the various ACPI registers defined in
+ * the FADT.
*
******************************************************************************/
@@ -75,7 +76,7 @@ acpi_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"));
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No FADT is present\n"));
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
@@ -131,7 +132,8 @@ 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"));
+ ACPI_REPORT_ERROR ((
+ "No ACPI mode transition supported in this system (enable/disable both zero)\n"));
return_ACPI_STATUS (AE_OK);
}
@@ -162,7 +164,8 @@ acpi_hw_set_mode (
}
if (ACPI_FAILURE (status)) {
- ACPI_REPORT_ERROR (("Could not write mode change, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Could not write mode change, %s\n",
+ acpi_format_exception (status)));
return_ACPI_STATUS (status);
}
@@ -173,7 +176,8 @@ 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));
+ ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Mode %X successfully enabled\n",
+ mode));
return_ACPI_STATUS (AE_OK);
}
acpi_os_stall(1000);
@@ -185,7 +189,7 @@ acpi_hw_set_mode (
}
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_hw_get_mode
*
@@ -199,7 +203,8 @@ acpi_hw_set_mode (
******************************************************************************/
u32
-acpi_hw_get_mode (void)
+acpi_hw_get_mode (
+ void)
{
acpi_status status;
u32 value;
diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c
index 9ac1d639bf5..8daeabb2fc7 100644
--- a/drivers/acpi/hardware/hwgpe.c
+++ b/drivers/acpi/hardware/hwgpe.c
@@ -48,6 +48,13 @@
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME ("hwgpe")
+/* Local prototypes */
+
+static acpi_status
+acpi_hw_enable_wakeup_gpe_block (
+ struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block);
+
/******************************************************************************
*
@@ -135,6 +142,7 @@ acpi_hw_clear_gpe (
* DESCRIPTION: Return the status of a single GPE.
*
******************************************************************************/
+
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_hw_get_gpe_status (
@@ -206,7 +214,7 @@ unlock_and_exit:
*
* RETURN: Status
*
- * DESCRIPTION: Disable all GPEs within a GPE block
+ * DESCRIPTION: Disable all GPEs within a single GPE block
*
******************************************************************************/
@@ -244,7 +252,7 @@ acpi_hw_disable_gpe_block (
*
* RETURN: Status
*
- * DESCRIPTION: Clear status bits for all GPEs within a GPE block
+ * DESCRIPTION: Clear status bits for all GPEs within a single GPE block
*
******************************************************************************/
@@ -282,8 +290,8 @@ acpi_hw_clear_gpe_block (
*
* RETURN: Status
*
- * DESCRIPTION: Enable all "runtime" GPEs within a GPE block. (Includes
- * combination wake/run GPEs.)
+ * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes
+ * combination wake/run GPEs.
*
******************************************************************************/
@@ -327,12 +335,12 @@ acpi_hw_enable_runtime_gpe_block (
*
* RETURN: Status
*
- * DESCRIPTION: Enable all "wake" GPEs within a GPE block. (Includes
- * combination wake/run GPEs.)
+ * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes
+ * combination wake/run GPEs.
*
******************************************************************************/
-acpi_status
+static acpi_status
acpi_hw_enable_wakeup_gpe_block (
struct acpi_gpe_xrupt_info *gpe_xrupt_info,
struct acpi_gpe_block_info *gpe_block)
@@ -350,7 +358,8 @@ acpi_hw_enable_wakeup_gpe_block (
/* Enable all "wake" GPEs in this register */
- status = acpi_hw_low_level_write (8, gpe_block->register_info[i].enable_for_wake,
+ status = acpi_hw_low_level_write (8,
+ gpe_block->register_info[i].enable_for_wake,
&gpe_block->register_info[i].enable_address);
if (ACPI_FAILURE (status)) {
return (status);
@@ -369,7 +378,7 @@ acpi_hw_enable_wakeup_gpe_block (
*
* RETURN: Status
*
- * DESCRIPTION: Disable and clear all GPEs
+ * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
*
******************************************************************************/
@@ -397,7 +406,7 @@ acpi_hw_disable_all_gpes (
*
* RETURN: Status
*
- * DESCRIPTION: Enable all GPEs of the given type
+ * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
*
******************************************************************************/
@@ -424,7 +433,7 @@ acpi_hw_enable_all_runtime_gpes (
*
* RETURN: Status
*
- * DESCRIPTION: Enable all GPEs of the given type
+ * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks
*
******************************************************************************/
diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c
index 91af0c2ddcf..6d9e4eb8483 100644
--- a/drivers/acpi/hardware/hwregs.c
+++ b/drivers/acpi/hardware/hwregs.c
@@ -87,8 +87,9 @@ acpi_hw_clear_acpi_status (
}
}
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
- ACPI_BITMASK_ALL_FIXED_STATUS);
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITMASK_ALL_FIXED_STATUS);
if (ACPI_FAILURE (status)) {
goto unlock_and_exit;
}
@@ -138,28 +139,30 @@ acpi_get_sleep_type_data (
{
acpi_status status = AE_OK;
struct acpi_parameter_info info;
+ char *sleep_state_name;
ACPI_FUNCTION_TRACE ("acpi_get_sleep_type_data");
- /*
- * Validate parameters
- */
+ /* Validate parameters */
+
if ((sleep_state > ACPI_S_STATES_MAX) ||
!sleep_type_a || !sleep_type_b) {
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
- /*
- * Evaluate the namespace object containing the values for this state
- */
+ /* Evaluate the namespace object containing the values for this state */
+
info.parameters = NULL;
- status = acpi_ns_evaluate_by_name ((char *) acpi_gbl_sleep_state_names[sleep_state],
- &info);
+ info.return_object = NULL;
+ sleep_state_name = (char *) acpi_gbl_sleep_state_names[sleep_state];
+
+ status = acpi_ns_evaluate_by_name (sleep_state_name, &info);
if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s while evaluating sleep_state [%s]\n",
- acpi_format_exception (status), acpi_gbl_sleep_state_names[sleep_state]));
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "%s while evaluating sleep_state [%s]\n",
+ acpi_format_exception (status), sleep_state_name));
return_ACPI_STATUS (status);
}
@@ -167,45 +170,57 @@ acpi_get_sleep_type_data (
/* Must have a return object */
if (!info.return_object) {
- ACPI_REPORT_ERROR (("Missing Sleep State object\n"));
+ ACPI_REPORT_ERROR (("No Sleep State object returned from [%s]\n",
+ sleep_state_name));
status = AE_NOT_EXIST;
}
/* It must be of type Package */
else if (ACPI_GET_OBJECT_TYPE (info.return_object) != ACPI_TYPE_PACKAGE) {
- ACPI_REPORT_ERROR (("Sleep State object not a Package\n"));
+ ACPI_REPORT_ERROR (("Sleep State return object is not a Package\n"));
status = AE_AML_OPERAND_TYPE;
}
- /* The package must have at least two elements */
-
+ /*
+ * The package must have at least two elements. NOTE (March 2005): This
+ * goes against the current ACPI spec which defines this object as a
+ * package with one encoded DWORD element. However, existing practice
+ * by BIOS vendors seems to be to have 2 or more elements, at least
+ * one per sleep type (A/B).
+ */
else if (info.return_object->package.count < 2) {
- ACPI_REPORT_ERROR (("Sleep State package does not have at least two elements\n"));
+ ACPI_REPORT_ERROR ((
+ "Sleep State return package does not have at least two elements\n"));
status = AE_AML_NO_OPERAND;
}
/* The first two elements must both be of type Integer */
- else if ((ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[0]) != ACPI_TYPE_INTEGER) ||
- (ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[1]) != ACPI_TYPE_INTEGER)) {
- ACPI_REPORT_ERROR (("Sleep State package elements are not both Integers (%s, %s)\n",
+ else if ((ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[0])
+ != ACPI_TYPE_INTEGER) ||
+ (ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[1])
+ != ACPI_TYPE_INTEGER)) {
+ ACPI_REPORT_ERROR ((
+ "Sleep State return package elements are not both Integers (%s, %s)\n",
acpi_ut_get_object_type_name (info.return_object->package.elements[0]),
acpi_ut_get_object_type_name (info.return_object->package.elements[1])));
status = AE_AML_OPERAND_TYPE;
}
else {
- /*
- * Valid _Sx_ package size, type, and value
- */
- *sleep_type_a = (u8) (info.return_object->package.elements[0])->integer.value;
- *sleep_type_b = (u8) (info.return_object->package.elements[1])->integer.value;
+ /* Valid _Sx_ package size, type, and value */
+
+ *sleep_type_a = (u8)
+ (info.return_object->package.elements[0])->integer.value;
+ *sleep_type_b = (u8)
+ (info.return_object->package.elements[1])->integer.value;
}
if (ACPI_FAILURE (status)) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "While evaluating sleep_state [%s], bad Sleep object %p type %s\n",
- acpi_gbl_sleep_state_names[sleep_state], info.return_object,
+ "%s While evaluating sleep_state [%s], bad Sleep object %p type %s\n",
+ acpi_format_exception (status),
+ sleep_state_name, info.return_object,
acpi_ut_get_object_type_name (info.return_object)));
}
@@ -221,9 +236,9 @@ EXPORT_SYMBOL(acpi_get_sleep_type_data);
*
* PARAMETERS: register_id - Index of ACPI Register to access
*
- * RETURN: The bit mask to be used when accessing the register
+ * RETURN: The bitmask to be used when accessing the register
*
- * DESCRIPTION: Map register_id into a register bit mask.
+ * DESCRIPTION: Map register_id into a register bitmask.
*
******************************************************************************/
@@ -359,7 +374,7 @@ acpi_set_register (
/* Always do a register read first so we can insert the new bits */
status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK,
- bit_reg_info->parent_register, &register_value);
+ bit_reg_info->parent_register, &register_value);
if (ACPI_FAILURE (status)) {
goto unlock_and_exit;
}
@@ -396,7 +411,7 @@ acpi_set_register (
bit_reg_info->access_bit_mask, value);
status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
- ACPI_REGISTER_PM1_ENABLE, (u16) register_value);
+ ACPI_REGISTER_PM1_ENABLE, (u16) register_value);
break;
@@ -413,7 +428,7 @@ acpi_set_register (
bit_reg_info->access_bit_mask, value);
status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
- ACPI_REGISTER_PM1_CONTROL, (u16) register_value);
+ ACPI_REGISTER_PM1_CONTROL, (u16) register_value);
break;
@@ -427,17 +442,19 @@ acpi_set_register (
ACPI_DEBUG_PRINT ((ACPI_DB_IO, "PM2 control: Read %X from %8.8X%8.8X\n",
register_value,
- ACPI_FORMAT_UINT64 (acpi_gbl_FADT->xpm2_cnt_blk.address)));
+ ACPI_FORMAT_UINT64 (
+ acpi_gbl_FADT->xpm2_cnt_blk.address)));
ACPI_REGISTER_INSERT_VALUE (register_value, bit_reg_info->bit_position,
bit_reg_info->access_bit_mask, value);
ACPI_DEBUG_PRINT ((ACPI_DB_IO, "About to write %4.4X to %8.8X%8.8X\n",
register_value,
- ACPI_FORMAT_UINT64 (acpi_gbl_FADT->xpm2_cnt_blk.address)));
+ ACPI_FORMAT_UINT64 (
+ acpi_gbl_FADT->xpm2_cnt_blk.address)));
status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
- ACPI_REGISTER_PM2_CONTROL, (u8) (register_value));
+ ACPI_REGISTER_PM2_CONTROL, (u8) (register_value));
break;
@@ -454,7 +471,9 @@ unlock_and_exit:
/* Normalize the value that was read */
- ACPI_DEBUG_EXEC (register_value = ((register_value & bit_reg_info->access_bit_mask) >> bit_reg_info->bit_position));
+ ACPI_DEBUG_EXEC (register_value =
+ ((register_value & bit_reg_info->access_bit_mask) >>
+ bit_reg_info->bit_position));
ACPI_DEBUG_PRINT ((ACPI_DB_IO, "Set bits: %8.8X actual %8.8X register %X\n",
value, register_value, bit_reg_info->parent_register));
@@ -469,7 +488,7 @@ EXPORT_SYMBOL(acpi_set_register);
*
* PARAMETERS: use_lock - Mutex hw access
* register_id - register_iD + Offset
- * return_value - Value that was read from the register
+ * return_value - Where the register value is returned
*
* RETURN: Status and the value read.
*
@@ -557,7 +576,8 @@ acpi_hw_register_read (
break;
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Register ID: %X\n", register_id));
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Register ID: %X\n",
+ register_id));
status = AE_BAD_PARAMETER;
break;
}
@@ -763,10 +783,11 @@ acpi_hw_low_level_read (
return (AE_BAD_PARAMETER);
}
- ACPI_DEBUG_PRINT ((ACPI_DB_IO, "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
- *value, width,
- ACPI_FORMAT_UINT64 (address),
- acpi_ut_get_region_name (reg->address_space_id)));
+ ACPI_DEBUG_PRINT ((ACPI_DB_IO,
+ "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
+ *value, width,
+ ACPI_FORMAT_UINT64 (address),
+ acpi_ut_get_region_name (reg->address_space_id)));
return (status);
}
@@ -841,10 +862,11 @@ acpi_hw_low_level_write (
return (AE_BAD_PARAMETER);
}
- ACPI_DEBUG_PRINT ((ACPI_DB_IO, "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
- value, width,
- ACPI_FORMAT_UINT64 (address),
- acpi_ut_get_region_name (reg->address_space_id)));
+ ACPI_DEBUG_PRINT ((ACPI_DB_IO,
+ "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
+ value, width,
+ ACPI_FORMAT_UINT64 (address),
+ acpi_ut_get_region_name (reg->address_space_id)));
return (status);
}
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 77b3e9a8550..415d342aeab 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -43,27 +43,13 @@
*/
#include <linux/module.h>
-
#include <acpi/acpi.h>
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME ("hwsleep")
-#define METHOD_NAME__BFS "\\_BFS"
-#define METHOD_NAME__GTS "\\_GTS"
-#define METHOD_NAME__PTS "\\_PTS"
-#define METHOD_NAME__SST "\\_SI._SST"
-#define METHOD_NAME__WAK "\\_WAK"
-
-#define ACPI_SST_INDICATOR_OFF 0
-#define ACPI_SST_WORKING 1
-#define ACPI_SST_WAKING 2
-#define ACPI_SST_SLEEPING 3
-#define ACPI_SST_SLEEP_CONTEXT 4
-
-
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_set_firmware_waking_vector
*
@@ -72,7 +58,7 @@
*
* RETURN: Status
*
- * DESCRIPTION: access function for d_firmware_waking_vector field in FACS
+ * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
*
******************************************************************************/
@@ -99,19 +85,20 @@ acpi_set_firmware_waking_vector (
}
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_get_firmware_waking_vector
*
- * PARAMETERS: *physical_address - Output buffer where contents of
+ * PARAMETERS: *physical_address - Where the contents of
* the firmware_waking_vector field of
- * the FACS will be stored.
+ * the FACS will be returned.
*
- * RETURN: Status
+ * RETURN: Status, vector
*
- * DESCRIPTION: Access function for firmware_waking_vector field in FACS
+ * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
*
******************************************************************************/
+
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_get_firmware_waking_vector (
@@ -141,7 +128,7 @@ acpi_get_firmware_waking_vector (
#endif
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_enter_sleep_state_prep
*
@@ -215,7 +202,7 @@ acpi_enter_sleep_state_prep (
break;
default:
- arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is indicator off */
+ arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */
break;
}
@@ -223,14 +210,15 @@ acpi_enter_sleep_state_prep (
status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL);
if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
- ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Method _SST failed, %s\n",
+ acpi_format_exception (status)));
}
return_ACPI_STATUS (AE_OK);
}
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_enter_sleep_state
*
@@ -299,15 +287,18 @@ acpi_enter_sleep_state (
/* Get current value of PM1A control */
- status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
+ status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK,
+ 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));
+ 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);
+ PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
+ sleep_enable_reg_info->access_bit_mask);
PM1Bcontrol = PM1Acontrol;
/* Insert SLP_TYP bits */
@@ -322,12 +313,14 @@ acpi_enter_sleep_state (
/* Write #1: fill in SLP_TYP data */
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol);
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol);
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
@@ -341,22 +334,25 @@ acpi_enter_sleep_state (
ACPI_FLUSH_CPU_CACHE ();
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol);
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1B_CONTROL, PM1Bcontrol);
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ 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!)
+ * 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.
+ * 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
@@ -364,7 +360,8 @@ acpi_enter_sleep_state (
*/
acpi_os_stall (10000000);
- status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_CONTROL,
+ status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
+ ACPI_REGISTER_PM1_CONTROL,
sleep_enable_reg_info->access_bit_mask);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
@@ -374,7 +371,8 @@ acpi_enter_sleep_state (
/* Wait until we enter sleep state */
do {
- status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, ACPI_MTX_DO_NOT_LOCK);
+ status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value,
+ ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
@@ -388,7 +386,7 @@ acpi_enter_sleep_state (
EXPORT_SYMBOL(acpi_enter_sleep_state);
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_enter_sleep_state_s4bios
*
@@ -439,11 +437,13 @@ acpi_enter_sleep_state_s4bios (
ACPI_FLUSH_CPU_CACHE ();
- status = acpi_os_write_port (acpi_gbl_FADT->smi_cmd, (u32) acpi_gbl_FADT->S4bios_req, 8);
+ status = acpi_os_write_port (acpi_gbl_FADT->smi_cmd,
+ (u32) acpi_gbl_FADT->S4bios_req, 8);
do {
acpi_os_stall(1000);
- status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value, ACPI_MTX_DO_NOT_LOCK);
+ status = acpi_get_register (ACPI_BITREG_WAKE_STATUS, &in_value,
+ ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
@@ -454,7 +454,7 @@ acpi_enter_sleep_state_s4bios (
EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios);
-/******************************************************************************
+/*******************************************************************************
*
* FUNCTION: acpi_leave_sleep_state
*
@@ -534,18 +534,21 @@ acpi_leave_sleep_state (
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_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Method _SST failed, %s\n",
+ acpi_format_exception (status)));
}
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_REPORT_ERROR (("Method _BFS failed, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Method _BFS failed, %s\n",
+ acpi_format_exception (status)));
}
status = acpi_evaluate_object (NULL, METHOD_NAME__WAK, &arg_list, NULL);
if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
- ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Method _WAK failed, %s\n",
+ acpi_format_exception (status)));
}
/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
@@ -567,15 +570,19 @@ acpi_leave_sleep_state (
/* Enable power button */
- (void) acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].enable_register_id,
+ (void) acpi_set_register(
+ acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].enable_register_id,
1, ACPI_MTX_DO_NOT_LOCK);
- (void) acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].status_register_id,
+
+ (void) acpi_set_register(
+ acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].status_register_id,
1, ACPI_MTX_DO_NOT_LOCK);
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_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
+ ACPI_REPORT_ERROR (("Method _SST failed, %s\n",
+ acpi_format_exception (status)));
}
return_ACPI_STATUS (status);
diff --git a/drivers/acpi/hardware/hwtimer.c b/drivers/acpi/hardware/hwtimer.c
index 1906167d729..49d7b395322 100644
--- a/drivers/acpi/hardware/hwtimer.c
+++ b/drivers/acpi/hardware/hwtimer.c
@@ -43,7 +43,6 @@
*/
#include <linux/module.h>
-
#include <acpi/acpi.h>
#define _COMPONENT ACPI_HARDWARE
@@ -90,7 +89,7 @@ acpi_get_timer_resolution (
*
* PARAMETERS: Ticks - Where the timer value is returned
*
- * RETURN: Status and current ticks
+ * RETURN: Status and current timer value (ticks)
*
* DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks).
*
@@ -199,5 +198,6 @@ acpi_get_timer_duration (
*time_elapsed = (u32) quotient;
return_ACPI_STATUS (status);
}
+
EXPORT_SYMBOL(acpi_get_timer_duration);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 07:21:59 +0000