static void acpi_sleep_tts_switch(u32 acpi_state)
{
acpi_status status;
status = acpi_execute_simple_method(NULL, "\\_TTS", acpi_state);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
/*
* OS can't evaluate the _TTS object correctly. Some warning
* message will be printed. But it won't break anything.
*/
printk(KERN_NOTICE "Failure in evaluating _TTS object\n");
}
}
static int toshiba_haps_protection_level(acpi_handle handle, int level)
{
acpi_status status;
status = acpi_execute_simple_method(handle, "PTLV", level);
if (ACPI_FAILURE(status)) {
pr_err("Error while setting the protection level\n");
return -EIO;
}
pr_debug("HDD protection level set to: %d\n", level);
return 0;
}
static int intel_hid_set_enable(struct device *device, bool enable)
{
acpi_status status;
status = acpi_execute_simple_method(ACPI_HANDLE(device), "HDSM",
enable);
if (ACPI_FAILURE(status)) {
dev_warn(device, "failed to %sable hotkeys\n",
enable ? "en" : "dis");
return -EIO;
}
return 0;
}
/*
* The normal ACPI LID wakeup behavior is wake-on-open, but not
* wake-on-close. This is implemented as standard by the XO-1.5 DSDT.
*
* We provide here a sysfs attribute that will additionally enable
* wake-on-close behavior. This is useful (e.g.) when we oportunistically
* suspend with the display running; if the lid is then closed, we want to
* wake up to turn the display off.
*
* This is controlled through a custom method in the XO-1.5 DSDT.
*/
static int set_lid_wake_behavior(bool wake_on_close)
{
acpi_status status;
status = acpi_execute_simple_method(NULL, "\\_SB.PCI0.LID.LIDW", wake_on_close);
if (ACPI_FAILURE(status)) {
pr_warning(PFX "failed to set lid behavior\n");
return 1;
}
lid_wake_on_close = wake_on_close;
return 0;
}
static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
{
if (!tz)
return -EINVAL;
if (!acpi_has_method(tz->device->handle, "_SCP")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
return -ENODEV;
} else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
"_SCP", mode))) {
return -ENODEV;
}
return 0;
}
static bool intel_hid_execute_method(acpi_handle handle,
enum intel_hid_dsm_fn_codes fn_index,
unsigned long long arg)
{
union acpi_object *obj, argv4, req;
acpi_status status;
char *method_name;
if (fn_index <= INTEL_HID_DSM_FN_INVALID ||
fn_index >= INTEL_HID_DSM_FN_MAX)
return false;
method_name = (char *)intel_hid_dsm_fn_to_method[fn_index];
if (!(intel_hid_dsm_fn_mask & fn_index))
goto skip_dsm_exec;
/* All methods expects a package with one integer element */
req.type = ACPI_TYPE_INTEGER;
req.integer.value = arg;
argv4.type = ACPI_TYPE_PACKAGE;
argv4.package.count = 1;
argv4.package.elements = &req;
obj = acpi_evaluate_dsm(handle, &intel_dsm_guid, 1, fn_index, &argv4);
if (obj) {
acpi_handle_debug(handle, "Exec DSM Fn code: %d[%s] success\n",
fn_index, method_name);
ACPI_FREE(obj);
return true;
}
skip_dsm_exec:
status = acpi_execute_simple_method(handle, method_name, arg);
if (ACPI_SUCCESS(status))
return true;
return false;
}
static int __init acpi_bus_init_irq(void)
{
acpi_status status;
char *message = NULL;
/*
* Let the system know what interrupt model we are using by
* evaluating the \_PIC object, if exists.
*/
switch (acpi_irq_model) {
case ACPI_IRQ_MODEL_PIC:
message = "PIC";
break;
case ACPI_IRQ_MODEL_IOAPIC:
message = "IOAPIC";
break;
case ACPI_IRQ_MODEL_IOSAPIC:
message = "IOSAPIC";
break;
case ACPI_IRQ_MODEL_PLATFORM:
message = "platform specific model";
break;
default:
printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
return -ENODEV;
}
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
return -ENODEV;
}
return 0;
}
static ssize_t irst_store_wakeup_time(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct acpi_device *acpi;
acpi_status status;
unsigned long value;
int error;
acpi = to_acpi_device(dev);
error = kstrtoul(buf, 0, &value);
if (error)
return error;
status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
return count;
}
static void intel_button_array_enable(struct device *device, bool enable)
{
struct intel_hid_priv *priv = dev_get_drvdata(device);
acpi_handle handle = ACPI_HANDLE(device);
unsigned long long button_cap;
acpi_status status;
if (!priv->array)
return;
/* Query supported platform features */
status = acpi_evaluate_integer(handle, "BTNC", NULL, &button_cap);
if (ACPI_FAILURE(status)) {
dev_warn(device, "failed to get button capability\n");
return;
}
/* Enable|disable features - power button is always enabled */
status = acpi_execute_simple_method(handle, "BTNE",
enable ? button_cap : 1);
if (ACPI_FAILURE(status))
dev_warn(device, "failed to set button capability\n");
}
static void acpi_bus_osc_support(void)
{
u32 capbuf[2];
struct acpi_osc_context context = {
.uuid_str = sb_uuid_str,
.rev = 1,
.cap.length = 8,
.cap.pointer = capbuf,
};
acpi_handle handle;
capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
#endif
#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
#endif
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
if (!ghes_disable)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;
if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
return;
if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) {
u32 *capbuf_ret = context.ret.pointer;
if (context.ret.length > OSC_SUPPORT_DWORD)
osc_sb_apei_support_acked =
capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT;
kfree(context.ret.pointer);
}
/* do we need to check other returned cap? Sounds no */
}
/* --------------------------------------------------------------------------
Notification Handling
-------------------------------------------------------------------------- */
/**
* 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)
{
struct acpi_device *adev;
struct acpi_driver *driver;
u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
bool hotplug_event = false;
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n");
hotplug_event = true;
break;
case ACPI_NOTIFY_DEVICE_CHECK:
acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n");
hotplug_event = true;
break;
case ACPI_NOTIFY_DEVICE_WAKE:
acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_WAKE event\n");
break;
case ACPI_NOTIFY_EJECT_REQUEST:
acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
hotplug_event = true;
break;
case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK_LIGHT event\n");
/* TBD: Exactly what does 'light' mean? */
break;
case ACPI_NOTIFY_FREQUENCY_MISMATCH:
acpi_handle_err(handle, "Device cannot be configured due "
"to a frequency mismatch\n");
break;
case ACPI_NOTIFY_BUS_MODE_MISMATCH:
acpi_handle_err(handle, "Device cannot be configured due "
"to a bus mode mismatch\n");
break;
case ACPI_NOTIFY_POWER_FAULT:
acpi_handle_err(handle, "Device has suffered a power fault\n");
break;
default:
acpi_handle_debug(handle, "Unknown event type 0x%x\n", type);
break;
}
adev = acpi_bus_get_acpi_device(handle);
if (!adev)
goto err;
driver = adev->driver;
if (driver && driver->ops.notify &&
(driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS))
driver->ops.notify(adev, type);
if (hotplug_event && ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))
return;
acpi_bus_put_acpi_device(adev);
return;
err:
acpi_evaluate_ost(handle, type, ost_code, NULL);
}
/* --------------------------------------------------------------------------
Initialization/Cleanup
-------------------------------------------------------------------------- */
static int __init acpi_bus_init_irq(void)
{
acpi_status status;
char *message = NULL;
/*
* Let the system know what interrupt model we are using by
* evaluating the \_PIC object, if exists.
*/
switch (acpi_irq_model) {
case ACPI_IRQ_MODEL_PIC:
message = "PIC";
break;
case ACPI_IRQ_MODEL_IOAPIC:
message = "IOAPIC";
break;
case ACPI_IRQ_MODEL_IOSAPIC:
message = "IOSAPIC";
break;
case ACPI_IRQ_MODEL_PLATFORM:
message = "platform specific model";
break;
default:
printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
return -ENODEV;
}
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
return -ENODEV;
}
return 0;
}
static void acpi_bus_osc_support(void)
{
u32 capbuf[2];
struct acpi_osc_context context = {
.uuid_str = sb_uuid_str,
.rev = 1,
.cap.length = 8,
.cap.pointer = capbuf,
};
acpi_handle handle;
capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
#endif
#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
#endif
#ifdef ACPI_HOTPLUG_OST
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
#endif
if (!ghes_disable)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;
if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
return;
if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) {
u32 *capbuf_ret = context.ret.pointer;
if (context.ret.length > OSC_SUPPORT_DWORD)
osc_sb_apei_support_acked =
capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT;
kfree(context.ret.pointer);
}
/* do we need to check other returned cap? Sounds no */
}
/* --------------------------------------------------------------------------
Notification Handling
-------------------------------------------------------------------------- */
/**
* 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)
{
struct acpi_device *device = NULL;
struct acpi_driver *driver;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n",
type, handle));
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
/* TBD */
break;
case ACPI_NOTIFY_DEVICE_CHECK:
/* TBD */
break;
case ACPI_NOTIFY_DEVICE_WAKE:
/* TBD */
break;
case ACPI_NOTIFY_EJECT_REQUEST:
/* TBD */
break;
case ACPI_NOTIFY_DEVICE_CHECK_LIGHT:
/* TBD: Exactly what does 'light' mean? */
break;
case ACPI_NOTIFY_FREQUENCY_MISMATCH:
/* TBD */
break;
case ACPI_NOTIFY_BUS_MODE_MISMATCH:
/* TBD */
break;
case ACPI_NOTIFY_POWER_FAULT:
/* TBD */
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Received unknown/unsupported notification [%08x]\n",
type));
break;
}
acpi_bus_get_device(handle, &device);
if (device) {
driver = device->driver;
if (driver && driver->ops.notify &&
(driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS))
driver->ops.notify(device, type);
}
}
/* --------------------------------------------------------------------------
Initialization/Cleanup
-------------------------------------------------------------------------- */
static int __init acpi_bus_init_irq(void)
{
acpi_status status;
char *message = NULL;
/*
* Let the system know what interrupt model we are using by
* evaluating the \_PIC object, if exists.
*/
switch (acpi_irq_model) {
case ACPI_IRQ_MODEL_PIC:
message = "PIC";
break;
case ACPI_IRQ_MODEL_IOAPIC:
message = "IOAPIC";
break;
case ACPI_IRQ_MODEL_IOSAPIC:
message = "IOSAPIC";
break;
case ACPI_IRQ_MODEL_PLATFORM:
message = "platform specific model";
break;
default:
printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
return -ENODEV;
}
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
return -ENODEV;
}
return 0;
}