#include <linux/list.h>
#include <linux/sched.h>
#include <linux/pm.h>
+#include <linux/pm_legacy.h>
#include <linux/device.h>
#include <linux/proc_fs.h>
#ifdef CONFIG_X86
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-
#define _COMPONENT ACPI_BUS_COMPONENT
-ACPI_MODULE_NAME ("acpi_bus")
-
+ACPI_MODULE_NAME("acpi_bus")
#ifdef CONFIG_X86
extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
#endif
-FADT_DESCRIPTOR acpi_fadt;
+struct fadt_descriptor acpi_fadt;
EXPORT_SYMBOL(acpi_fadt);
-struct acpi_device *acpi_root;
-struct proc_dir_entry *acpi_root_dir;
+struct acpi_device *acpi_root;
+struct proc_dir_entry *acpi_root_dir;
EXPORT_SYMBOL(acpi_root_dir);
#define STRUCT_TO_INT(s) (*((int*)&s))
Device Management
-------------------------------------------------------------------------- */
-int
-acpi_bus_get_device (
- acpi_handle handle,
- struct acpi_device **device)
+int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
{
- acpi_status status = AE_OK;
+ acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("acpi_bus_get_device");
/* TBD: Support fixed-feature devices */
- status = acpi_get_data(handle, acpi_bus_data_handler, (void**) device);
+ status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
if (ACPI_FAILURE(status) || !*device) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "No context for object [%p]\n",
- handle));
+ handle));
return_VALUE(-ENODEV);
}
return_VALUE(0);
}
+
EXPORT_SYMBOL(acpi_bus_get_device);
-int
-acpi_bus_get_status (
- struct acpi_device *device)
+int acpi_bus_get_status(struct acpi_device *device)
{
- acpi_status status = AE_OK;
- unsigned long sta = 0;
-
+ acpi_status status = AE_OK;
+ unsigned long sta = 0;
+
ACPI_FUNCTION_TRACE("acpi_bus_get_status");
if (!device)
* Evaluate _STA if present.
*/
if (device->flags.dynamic_status) {
- status = acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
+ status =
+ acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
- STRUCT_TO_INT(device->status) = (int) sta;
+ STRUCT_TO_INT(device->status) = (int)sta;
}
/*
if (device->status.functional && !device->status.present) {
printk(KERN_WARNING PREFIX "Device [%s] status [%08x]: "
- "functional but not present; setting present\n",
- device->pnp.bus_id,
- (u32) STRUCT_TO_INT(device->status));
+ "functional but not present; setting present\n",
+ device->pnp.bus_id, (u32) STRUCT_TO_INT(device->status));
device->status.present = 1;
}
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n",
- device->pnp.bus_id, (u32) STRUCT_TO_INT(device->status)));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n",
+ device->pnp.bus_id,
+ (u32) STRUCT_TO_INT(device->status)));
return_VALUE(0);
}
-EXPORT_SYMBOL(acpi_bus_get_status);
+EXPORT_SYMBOL(acpi_bus_get_status);
/* --------------------------------------------------------------------------
Power Management
-------------------------------------------------------------------------- */
-int
-acpi_bus_get_power (
- acpi_handle handle,
- int *state)
+int acpi_bus_get_power(acpi_handle handle, int *state)
{
- int result = 0;
- acpi_status status = 0;
- struct acpi_device *device = NULL;
- unsigned long psc = 0;
+ int result = 0;
+ acpi_status status = 0;
+ struct acpi_device *device = NULL;
+ unsigned long psc = 0;
ACPI_FUNCTION_TRACE("acpi_bus_get_power");
*state = device->parent->power.state;
else
*state = ACPI_STATE_D0;
- }
- else {
+ } else {
/*
* Get the device's power state either directly (via _PSC) or
* indirectly (via power resources).
*/
if (device->power.flags.explicit_get) {
- status = acpi_evaluate_integer(device->handle, "_PSC",
- NULL, &psc);
+ status = acpi_evaluate_integer(device->handle, "_PSC",
+ NULL, &psc);
if (ACPI_FAILURE(status))
return_VALUE(-ENODEV);
- device->power.state = (int) psc;
- }
- else if (device->power.flags.power_resources) {
+ device->power.state = (int)psc;
+ } else if (device->power.flags.power_resources) {
result = acpi_power_get_inferred_state(device);
if (result)
return_VALUE(result);
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is D%d\n",
- device->pnp.bus_id, device->power.state));
+ device->pnp.bus_id, device->power.state));
return_VALUE(0);
}
-EXPORT_SYMBOL(acpi_bus_get_power);
+EXPORT_SYMBOL(acpi_bus_get_power);
-int
-acpi_bus_set_power (
- acpi_handle handle,
- int state)
+int acpi_bus_set_power(acpi_handle handle, int state)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_device *device = NULL;
- char object_name[5] = {'_','P','S','0'+state,'\0'};
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_device *device = NULL;
+ char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
ACPI_FUNCTION_TRACE("acpi_bus_set_power");
/* Make sure this is a valid target state */
if (!device->flags.power_manageable) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device is not power manageable\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Device is not power manageable\n"));
return_VALUE(-ENODEV);
}
/*
if (device->power.state == ACPI_STATE_UNKNOWN)
acpi_bus_get_power(device->handle, &device->power.state);
if (state == device->power.state) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", state));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+ state));
return_VALUE(0);
}
if (!device->power.states[state].flags.valid) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device does not support D%d\n", state));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device does not support D%d\n",
+ state));
return_VALUE(-ENODEV);
}
if (device->parent && (state < device->parent->power.state)) {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Cannot set device to a higher-powered state than parent\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Cannot set device to a higher-powered state than parent\n"));
return_VALUE(-ENODEV);
}
goto end;
}
if (device->power.states[state].flags.explicit_set) {
- status = acpi_evaluate_object(device->handle,
- object_name, NULL, NULL);
+ status = acpi_evaluate_object(device->handle,
+ object_name, NULL, NULL);
if (ACPI_FAILURE(status)) {
result = -ENODEV;
goto end;
}
}
- }
- else {
+ } else {
if (device->power.states[state].flags.explicit_set) {
- status = acpi_evaluate_object(device->handle,
- object_name, NULL, NULL);
+ status = acpi_evaluate_object(device->handle,
+ object_name, NULL, NULL);
if (ACPI_FAILURE(status)) {
result = -ENODEV;
goto end;
}
}
-end:
+ end:
if (result)
- ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Error transitioning device [%s] to D%d\n",
- device->pnp.bus_id, state));
+ ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+ "Error transitioning device [%s] to D%d\n",
+ device->pnp.bus_id, state));
else
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] transitioned to D%d\n",
- device->pnp.bus_id, state));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Device [%s] transitioned to D%d\n",
+ device->pnp.bus_id, state));
return_VALUE(result);
}
-EXPORT_SYMBOL(acpi_bus_set_power);
-
+EXPORT_SYMBOL(acpi_bus_set_power);
/* --------------------------------------------------------------------------
Event Management
LIST_HEAD(acpi_bus_event_list);
DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
-extern int event_is_open;
+extern int event_is_open;
-int
-acpi_bus_generate_event (
- struct acpi_device *device,
- u8 type,
- int data)
+int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
{
- struct acpi_bus_event *event = NULL;
- unsigned long flags = 0;
+ struct acpi_bus_event *event = NULL;
+ unsigned long flags = 0;
ACPI_FUNCTION_TRACE("acpi_bus_generate_event");
return_VALUE(0);
}
+
EXPORT_SYMBOL(acpi_bus_generate_event);
-int
-acpi_bus_receive_event (
- struct acpi_bus_event *event)
+int acpi_bus_receive_event(struct acpi_bus_event *event)
{
- unsigned long flags = 0;
- struct acpi_bus_event *entry = NULL;
+ unsigned long flags = 0;
+ struct acpi_bus_event *entry = NULL;
DECLARE_WAITQUEUE(wait, current);
}
spin_lock_irqsave(&acpi_bus_event_lock, flags);
- entry = list_entry(acpi_bus_event_list.next, struct acpi_bus_event, node);
+ entry =
+ list_entry(acpi_bus_event_list.next, struct acpi_bus_event, node);
if (entry)
list_del(&entry->node);
spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
return_VALUE(0);
}
-EXPORT_SYMBOL(acpi_bus_receive_event);
+EXPORT_SYMBOL(acpi_bus_receive_event);
/* --------------------------------------------------------------------------
Notification Handling
-------------------------------------------------------------------------- */
static int
-acpi_bus_check_device (
- struct acpi_device *device,
- int *status_changed)
+acpi_bus_check_device(struct acpi_device *device, int *status_changed)
{
- acpi_status status = 0;
+ acpi_status status = 0;
struct acpi_device_status old_status;
ACPI_FUNCTION_TRACE("acpi_bus_check_device");
if (status_changed)
*status_changed = 1;
-
+
/*
* Device Insertion/Removal
*/
if ((device->status.present) && !(old_status.present)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n"));
/* TBD: Handle device insertion */
- }
- else if (!(device->status.present) && (old_status.present)) {
+ } else if (!(device->status.present) && (old_status.present)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n"));
/* TBD: Handle device removal */
}
return_VALUE(0);
}
-
-static int
-acpi_bus_check_scope (
- struct acpi_device *device)
+static int acpi_bus_check_scope(struct acpi_device *device)
{
- int result = 0;
- int status_changed = 0;
+ int result = 0;
+ int status_changed = 0;
ACPI_FUNCTION_TRACE("acpi_bus_check_scope");
return_VALUE(0);
}
-
/**
* acpi_bus_notify
* ---------------
* Callback for all 'system-level' device notifications (values 0x00-0x7F).
*/
-static void
-acpi_bus_notify (
- acpi_handle handle,
- u32 type,
- void *data)
+static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
{
- int result = 0;
- struct acpi_device *device = NULL;
+ int result = 0;
+ struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_bus_notify");
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received BUS CHECK notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received BUS CHECK notification for device [%s]\n",
+ device->pnp.bus_id));
result = acpi_bus_check_scope(device);
/*
* TBD: We'll need to outsource certain events to non-ACPI
- * drivers via the device manager (device.c).
+ * drivers via the device manager (device.c).
*/
break;
case ACPI_NOTIFY_DEVICE_CHECK:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received DEVICE CHECK notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received DEVICE CHECK notification for device [%s]\n",
+ device->pnp.bus_id));
result = acpi_bus_check_device(device, NULL);
/*
* TBD: We'll need to outsource certain events to non-ACPI
- * drivers via the device manager (device.c).
+ * drivers via the device manager (device.c).
*/
break;
case ACPI_NOTIFY_DEVICE_WAKE:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received DEVICE WAKE notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received DEVICE WAKE notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD */
break;
case ACPI_NOTIFY_EJECT_REQUEST:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received EJECT REQUEST notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received EJECT REQUEST notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD */
break;
case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received DEVICE CHECK LIGHT notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received DEVICE CHECK LIGHT notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD: Exactly what does 'light' mean? */
break;
case ACPI_NOTIFY_FREQUENCY_MISMATCH:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received FREQUENCY MISMATCH notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received FREQUENCY MISMATCH notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD */
break;
case ACPI_NOTIFY_BUS_MODE_MISMATCH:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received BUS MODE MISMATCH notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received BUS MODE MISMATCH notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD */
break;
case ACPI_NOTIFY_POWER_FAULT:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received POWER FAULT notification for device [%s]\n",
- device->pnp.bus_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received POWER FAULT notification for device [%s]\n",
+ device->pnp.bus_id));
/* TBD */
break;
default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Received unknown/unsupported notification [%08x]\n",
- type));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Received unknown/unsupported notification [%08x]\n",
+ type));
break;
}
Initialization/Cleanup
-------------------------------------------------------------------------- */
-static int __init
-acpi_bus_init_irq (void)
+static int __init acpi_bus_init_irq(void)
{
- acpi_status status = AE_OK;
- union acpi_object arg = {ACPI_TYPE_INTEGER};
- struct acpi_object_list arg_list = {1, &arg};
- char *message = NULL;
+ acpi_status status = AE_OK;
+ union acpi_object arg = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &arg };
+ char *message = NULL;
ACPI_FUNCTION_TRACE("acpi_bus_init_irq");
return_VALUE(0);
}
-
-void __init
-acpi_early_init (void)
+void __init acpi_early_init(void)
{
- acpi_status status = AE_OK;
- struct acpi_buffer buffer = {sizeof(acpi_fadt), &acpi_fadt};
+ acpi_status status = AE_OK;
+ struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
ACPI_FUNCTION_TRACE("acpi_early_init");
if (acpi_disabled)
return_VOID;
+ printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
+
/* enable workarounds, unless strict ACPI spec. compliance */
if (!acpi_strict)
acpi_gbl_enable_interpreter_slack = TRUE;
status = acpi_initialize_subsystem();
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Unable to initialize the ACPI Interpreter\n");
+ printk(KERN_ERR PREFIX
+ "Unable to initialize the ACPI Interpreter\n");
goto error0;
}
status = acpi_load_tables();
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Unable to load the System Description Tables\n");
+ printk(KERN_ERR PREFIX
+ "Unable to load the System Description Tables\n");
goto error0;
}
/*
* Get a separate copy of the FADT for use by other drivers.
*/
- status = acpi_get_table(ACPI_TABLE_FADT, 1, &buffer);
+ status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Unable to get the FADT\n");
goto error0;
}
-
#ifdef CONFIG_X86
if (!acpi_ioapic) {
extern acpi_interrupt_flags acpi_sci_flags;
acpi_sci_flags.trigger = 3;
/* Set PIC-mode SCI trigger type */
- acpi_pic_sci_set_trigger(acpi_fadt.sci_int, acpi_sci_flags.trigger);
+ acpi_pic_sci_set_trigger(acpi_fadt.sci_int,
+ acpi_sci_flags.trigger);
} else {
extern int acpi_sci_override_gsi;
/*
}
#endif
- status = acpi_enable_subsystem(~(ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE));
+ status =
+ acpi_enable_subsystem(~
+ (ACPI_NO_HARDWARE_INIT |
+ ACPI_NO_ACPI_ENABLE));
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Unable to enable ACPI\n");
goto error0;
return_VOID;
-error0:
+ error0:
disable_acpi();
return_VOID;
}
-static int __init
-acpi_bus_init (void)
+static int __init acpi_bus_init(void)
{
- int result = 0;
- acpi_status status = AE_OK;
- extern acpi_status acpi_os_initialize1(void);
+ int result = 0;
+ acpi_status status = AE_OK;
+ extern acpi_status acpi_os_initialize1(void);
ACPI_FUNCTION_TRACE("acpi_bus_init");
status = acpi_os_initialize1();
- status = acpi_enable_subsystem(ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE);
+ status =
+ acpi_enable_subsystem(ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE);
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Unable to start the ACPI Interpreter\n");
+ printk(KERN_ERR PREFIX
+ "Unable to start the ACPI Interpreter\n");
goto error1;
}
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Unable to initialize ACPI OS objects\n");
+ printk(KERN_ERR PREFIX
+ "Unable to initialize ACPI OS objects\n");
goto error1;
}
#ifdef CONFIG_ACPI_EC
/*
* Register the for all standard device notifications.
*/
- status = acpi_install_notify_handler(ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY, &acpi_bus_notify, NULL);
+ status =
+ acpi_install_notify_handler(ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY,
+ &acpi_bus_notify, NULL);
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Unable to register for device notifications\n");
+ printk(KERN_ERR PREFIX
+ "Unable to register for device notifications\n");
goto error1;
}
return_VALUE(0);
/* Mimic structured exception handling */
-error1:
+ error1:
acpi_terminate();
return_VALUE(-ENODEV);
}
-decl_subsys(acpi,NULL,NULL);
+decl_subsys(acpi, NULL, NULL);
-static int __init acpi_init (void)
+static int __init acpi_init(void)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_init");
- printk(KERN_INFO PREFIX "Subsystem revision %08x\n",
- ACPI_CA_VERSION);
-
if (acpi_disabled) {
printk(KERN_INFO PREFIX "Interpreter disabled.\n");
return_VALUE(-ENODEV);
result = acpi_bus_init();
if (!result) {
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_LEGACY
if (!PM_IS_ACTIVE())
pm_active = 1;
else {
- printk(KERN_INFO PREFIX "APM is already active, exiting\n");
+ printk(KERN_INFO PREFIX
+ "APM is already active, exiting\n");
disable_acpi();
result = -ENODEV;
}
git.openpandora.org / pandora-kernel.git / blobdiff