#include <linux/module.h>
#include <linux/init.h>
#include <linux/ioport.h>
+#include <linux/kernel.h>
#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>
+#include <linux/acpi.h>
+#include <linux/slab.h>
#ifdef CONFIG_X86
#include <asm/mpspec.h>
#endif
+#include <linux/pci.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#include <linux/dmi.h>
-#define _COMPONENT ACPI_BUS_COMPONENT
-ACPI_MODULE_NAME("acpi_bus")
-#ifdef CONFIG_X86
-extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
-#endif
+#include "internal.h"
-struct fadt_descriptor acpi_fadt;
-EXPORT_SYMBOL(acpi_fadt);
+#define _COMPONENT ACPI_BUS_COMPONENT
+ACPI_MODULE_NAME("bus");
struct acpi_device *acpi_root;
struct proc_dir_entry *acpi_root_dir;
#define STRUCT_TO_INT(s) (*((int*)&s))
+static int set_power_nocheck(const struct dmi_system_id *id)
+{
+ printk(KERN_NOTICE PREFIX "%s detected - "
+ "disable power check in power transistion\n", id->ident);
+ acpi_power_nocheck = 1;
+ return 0;
+}
+static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = {
+ {
+ set_power_nocheck, "HP Pavilion 05", {
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_SYS_VENDOR, "HP Pavilion 05"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "2001211RE101GLEND") }, NULL},
+ {},
+};
+
+
+#ifdef CONFIG_X86
+static int set_copy_dsdt(const struct dmi_system_id *id)
+{
+ printk(KERN_NOTICE "%s detected - "
+ "force copy of DSDT to local memory\n", id->ident);
+ acpi_gbl_copy_dsdt_locally = 1;
+ return 0;
+}
+
+static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+ /*
+ * Insyde BIOS on some TOSHIBA machines corrupt the DSDT.
+ * https://bugzilla.kernel.org/show_bug.cgi?id=14679
+ */
+ {
+ .callback = set_copy_dsdt,
+ .ident = "TOSHIBA Satellite A505",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A505"),
+ },
+ },
+ {
+ .callback = set_copy_dsdt,
+ .ident = "TOSHIBA Satellite L505D",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L505D"),
+ },
+ },
+ {}
+};
+#else
+static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+ {}
+};
+#endif
+
/* --------------------------------------------------------------------------
Device Management
-------------------------------------------------------------------------- */
{
acpi_status status = AE_OK;
- ACPI_FUNCTION_TRACE("acpi_bus_get_device");
if (!device)
- return_VALUE(-EINVAL);
+ return -EINVAL;
/* TBD: Support fixed-feature devices */
status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
if (ACPI_FAILURE(status) || !*device) {
- ACPI_EXCEPTION((AE_INFO, status, "No context for object [%p]", handle));
- return_VALUE(-ENODEV);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+ handle));
+ return -ENODEV;
}
- return_VALUE(0);
+ return 0;
}
EXPORT_SYMBOL(acpi_bus_get_device);
-int acpi_bus_get_status(struct acpi_device *device)
+acpi_status acpi_bus_get_status_handle(acpi_handle handle,
+ unsigned long long *sta)
{
- acpi_status status = AE_OK;
- unsigned long sta = 0;
+ acpi_status status;
- ACPI_FUNCTION_TRACE("acpi_bus_get_status");
+ status = acpi_evaluate_integer(handle, "_STA", NULL, sta);
+ if (ACPI_SUCCESS(status))
+ return AE_OK;
- if (!device)
- return_VALUE(-EINVAL);
-
- /*
- * Evaluate _STA if present.
- */
- if (device->flags.dynamic_status) {
- status =
- acpi_evaluate_integer(device->handle, "_STA", NULL, &sta);
- if (ACPI_FAILURE(status))
- return_VALUE(-ENODEV);
- STRUCT_TO_INT(device->status) = (int)sta;
+ if (status == AE_NOT_FOUND) {
+ *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
+ ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING;
+ return AE_OK;
}
+ return status;
+}
- /*
- * Otherwise we assume the status of our parent (unless we don't
- * have one, in which case status is implied).
- */
- else if (device->parent)
- device->status = device->parent->status;
- else
- STRUCT_TO_INT(device->status) = 0x0F;
+int acpi_bus_get_status(struct acpi_device *device)
+{
+ acpi_status status;
+ unsigned long long sta;
+
+ status = acpi_bus_get_status_handle(device->handle, &sta);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ 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));
- device->status.present = 1;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: "
+ "functional but not present;\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 0;
+}
+EXPORT_SYMBOL(acpi_bus_get_status);
- return_VALUE(0);
+void acpi_bus_private_data_handler(acpi_handle handle,
+ void *context)
+{
+ return;
}
+EXPORT_SYMBOL(acpi_bus_private_data_handler);
-EXPORT_SYMBOL(acpi_bus_get_status);
+int acpi_bus_get_private_data(acpi_handle handle, void **data)
+{
+ acpi_status status = AE_OK;
+
+ if (!*data)
+ return -EINVAL;
+
+ status = acpi_get_data(handle, acpi_bus_private_data_handler, data);
+ if (ACPI_FAILURE(status) || !*data) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+ handle));
+ return -ENODEV;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(acpi_bus_get_private_data);
/* --------------------------------------------------------------------------
Power Management
int result = 0;
acpi_status status = 0;
struct acpi_device *device = NULL;
- unsigned long psc = 0;
+ unsigned long long psc = 0;
- ACPI_FUNCTION_TRACE("acpi_bus_get_power");
result = acpi_bus_get_device(handle, &device);
if (result)
- return_VALUE(result);
+ return result;
*state = ACPI_STATE_UNKNOWN;
*state = ACPI_STATE_D0;
} else {
/*
- * Get the device's power state either directly (via _PSC) or
+ * Get the device's power state either directly (via _PSC) or
* indirectly (via power resources).
*/
- if (device->power.flags.explicit_get) {
+ if (device->power.flags.power_resources) {
+ result = acpi_power_get_inferred_state(device);
+ if (result)
+ return result;
+ } else if (device->power.flags.explicit_get) {
status = acpi_evaluate_integer(device->handle, "_PSC",
NULL, &psc);
if (ACPI_FAILURE(status))
- return_VALUE(-ENODEV);
+ return -ENODEV;
device->power.state = (int)psc;
- } else if (device->power.flags.power_resources) {
- result = acpi_power_get_inferred_state(device);
- if (result)
- return_VALUE(result);
}
*state = device->power.state;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is D%d\n",
device->pnp.bus_id, device->power.state));
- return_VALUE(0);
+ return 0;
}
EXPORT_SYMBOL(acpi_bus_get_power);
struct acpi_device *device = NULL;
char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' };
- ACPI_FUNCTION_TRACE("acpi_bus_set_power");
result = acpi_bus_get_device(handle, &device);
if (result)
- return_VALUE(result);
+ return result;
if ((state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
- return_VALUE(-EINVAL);
+ return -EINVAL;
/* Make sure this is a valid target state */
if (!device->flags.power_manageable) {
- printk(KERN_DEBUG "Device `[%s]is not power manageable",
- device->kobj.name);
- return_VALUE(-ENODEV);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
+ kobject_name(&device->dev.kobj)));
+ return -ENODEV;
}
/*
- * Get device's current power state if it's unknown
- * This means device power state isn't initialized or previous setting failed
+ * Get device's current power state
*/
- if (!device->flags.force_power_state) {
- 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));
- return_VALUE(0);
- }
+ if (!acpi_power_nocheck) {
+ /*
+ * Maybe the incorrect power state is returned on the bogus
+ * bios, which is different with the real power state.
+ * For example: the bios returns D0 state and the real power
+ * state is D3. OS expects to set the device to D0 state. In
+ * such case if OS uses the power state returned by the BIOS,
+ * the device can't be transisted to the correct power state.
+ * So if the acpi_power_nocheck is set, it is unnecessary to
+ * get the power state by calling acpi_bus_get_power.
+ */
+ acpi_bus_get_power(device->handle, &device->power.state);
}
+ if ((state == device->power.state) && !device->flags.force_power_state) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+ state));
+ return 0;
+ }
+
if (!device->power.states[state].flags.valid) {
- ACPI_WARNING((AE_INFO, "Device does not support D%d", state));
- return_VALUE(-ENODEV);
+ printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
+ return -ENODEV;
}
if (device->parent && (state < device->parent->power.state)) {
- ACPI_WARNING((AE_INFO,
+ printk(KERN_WARNING PREFIX
"Cannot set device to a higher-powered"
- " state than parent"));
- return_VALUE(-ENODEV);
+ " state than parent\n");
+ return -ENODEV;
}
/*
end:
if (result)
- ACPI_WARNING((AE_INFO,
- "Transitioning device [%s] to D%d",
- device->pnp.bus_id, state));
- else
+ printk(KERN_WARNING PREFIX
+ "Device [%s] failed to transition to D%d\n",
+ device->pnp.bus_id, state);
+ else {
+ device->power.state = state;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device [%s] transitioned to D%d\n",
device->pnp.bus_id, state));
+ }
- return_VALUE(result);
+ return result;
}
EXPORT_SYMBOL(acpi_bus_set_power);
+bool acpi_bus_power_manageable(acpi_handle handle)
+{
+ struct acpi_device *device;
+ int result;
+
+ result = acpi_bus_get_device(handle, &device);
+ return result ? false : device->flags.power_manageable;
+}
+
+EXPORT_SYMBOL(acpi_bus_power_manageable);
+
+bool acpi_bus_can_wakeup(acpi_handle handle)
+{
+ struct acpi_device *device;
+ int result;
+
+ result = acpi_bus_get_device(handle, &device);
+ return result ? false : device->wakeup.flags.valid;
+}
+
+EXPORT_SYMBOL(acpi_bus_can_wakeup);
+
+static void acpi_print_osc_error(acpi_handle handle,
+ struct acpi_osc_context *context, char *error)
+{
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER};
+ int i;
+
+ if (ACPI_FAILURE(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer)))
+ printk(KERN_DEBUG "%s\n", error);
+ else {
+ printk(KERN_DEBUG "%s:%s\n", (char *)buffer.pointer, error);
+ kfree(buffer.pointer);
+ }
+ printk(KERN_DEBUG"_OSC request data:");
+ for (i = 0; i < context->cap.length; i += sizeof(u32))
+ printk("%x ", *((u32 *)(context->cap.pointer + i)));
+ printk("\n");
+}
+
+static acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
+{
+ int i;
+ static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21,
+ 24, 26, 28, 30, 32, 34};
+
+ if (strlen(str) != 36)
+ return AE_BAD_PARAMETER;
+ for (i = 0; i < 36; i++) {
+ if (i == 8 || i == 13 || i == 18 || i == 23) {
+ if (str[i] != '-')
+ return AE_BAD_PARAMETER;
+ } else if (!isxdigit(str[i]))
+ return AE_BAD_PARAMETER;
+ }
+ for (i = 0; i < 16; i++) {
+ uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4;
+ uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]);
+ }
+ return AE_OK;
+}
+
+acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
+{
+ acpi_status status;
+ struct acpi_object_list input;
+ union acpi_object in_params[4];
+ union acpi_object *out_obj;
+ u8 uuid[16];
+ u32 errors;
+ struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
+
+ if (!context)
+ return AE_ERROR;
+ if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid)))
+ return AE_ERROR;
+ context->ret.length = ACPI_ALLOCATE_BUFFER;
+ context->ret.pointer = NULL;
+
+ /* Setting up input parameters */
+ input.count = 4;
+ input.pointer = in_params;
+ in_params[0].type = ACPI_TYPE_BUFFER;
+ in_params[0].buffer.length = 16;
+ in_params[0].buffer.pointer = uuid;
+ in_params[1].type = ACPI_TYPE_INTEGER;
+ in_params[1].integer.value = context->rev;
+ in_params[2].type = ACPI_TYPE_INTEGER;
+ in_params[2].integer.value = context->cap.length/sizeof(u32);
+ in_params[3].type = ACPI_TYPE_BUFFER;
+ in_params[3].buffer.length = context->cap.length;
+ in_params[3].buffer.pointer = context->cap.pointer;
+
+ status = acpi_evaluate_object(handle, "_OSC", &input, &output);
+ if (ACPI_FAILURE(status))
+ return status;
+
+ if (!output.length)
+ return AE_NULL_OBJECT;
+
+ out_obj = output.pointer;
+ if (out_obj->type != ACPI_TYPE_BUFFER
+ || out_obj->buffer.length != context->cap.length) {
+ acpi_print_osc_error(handle, context,
+ "_OSC evaluation returned wrong type");
+ status = AE_TYPE;
+ goto out_kfree;
+ }
+ /* Need to ignore the bit0 in result code */
+ errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
+ if (errors) {
+ if (errors & OSC_REQUEST_ERROR)
+ acpi_print_osc_error(handle, context,
+ "_OSC request failed");
+ if (errors & OSC_INVALID_UUID_ERROR)
+ acpi_print_osc_error(handle, context,
+ "_OSC invalid UUID");
+ if (errors & OSC_INVALID_REVISION_ERROR)
+ acpi_print_osc_error(handle, context,
+ "_OSC invalid revision");
+ if (errors & OSC_CAPABILITIES_MASK_ERROR) {
+ if (((u32 *)context->cap.pointer)[OSC_QUERY_TYPE]
+ & OSC_QUERY_ENABLE)
+ goto out_success;
+ status = AE_SUPPORT;
+ goto out_kfree;
+ }
+ status = AE_ERROR;
+ goto out_kfree;
+ }
+out_success:
+ context->ret.length = out_obj->buffer.length;
+ context->ret.pointer = kmalloc(context->ret.length, GFP_KERNEL);
+ if (!context->ret.pointer) {
+ status = AE_NO_MEMORY;
+ goto out_kfree;
+ }
+ memcpy(context->ret.pointer, out_obj->buffer.pointer,
+ context->ret.length);
+ status = AE_OK;
+
+out_kfree:
+ kfree(output.pointer);
+ if (status != AE_OK)
+ context->ret.pointer = NULL;
+ return status;
+}
+EXPORT_SYMBOL(acpi_run_osc);
+
+static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48";
+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_TYPE] = OSC_QUERY_ENABLE;
+ capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
+#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
+ defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
+ capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT;
+#endif
+
+#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
+ capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT;
+#endif
+ if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
+ return;
+ if (ACPI_SUCCESS(acpi_run_osc(handle, &context)))
+ kfree(context.ret.pointer);
+ /* do we need to check the returned cap? Sounds no */
+}
+
/* --------------------------------------------------------------------------
Event Management
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROC_EVENT
static DEFINE_SPINLOCK(acpi_bus_event_lock);
LIST_HEAD(acpi_bus_event_list);
extern int event_is_open;
-int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
{
- struct acpi_bus_event *event = NULL;
+ struct acpi_bus_event *event;
unsigned long flags = 0;
- ACPI_FUNCTION_TRACE("acpi_bus_generate_event");
-
- if (!device)
- return_VALUE(-EINVAL);
-
/* drop event on the floor if no one's listening */
if (!event_is_open)
- return_VALUE(0);
+ return 0;
- event = kmalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC);
+ event = kzalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC);
if (!event)
- return_VALUE(-ENOMEM);
+ return -ENOMEM;
- strcpy(event->device_class, device->pnp.device_class);
- strcpy(event->bus_id, device->pnp.bus_id);
+ strcpy(event->device_class, device_class);
+ strcpy(event->bus_id, bus_id);
event->type = type;
event->data = data;
wake_up_interruptible(&acpi_bus_event_queue);
- return_VALUE(0);
+ return 0;
+
+}
+
+EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
+
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+{
+ if (!device)
+ return -EINVAL;
+ return acpi_bus_generate_proc_event4(device->pnp.device_class,
+ device->pnp.bus_id, type, data);
}
-EXPORT_SYMBOL(acpi_bus_generate_event);
+EXPORT_SYMBOL(acpi_bus_generate_proc_event);
int acpi_bus_receive_event(struct acpi_bus_event *event)
{
DECLARE_WAITQUEUE(wait, current);
- ACPI_FUNCTION_TRACE("acpi_bus_receive_event");
if (!event)
- return_VALUE(-EINVAL);
+ return -EINVAL;
if (list_empty(&acpi_bus_event_list)) {
set_current_state(TASK_RUNNING);
if (signal_pending(current))
- return_VALUE(-ERESTARTSYS);
+ return -ERESTARTSYS;
}
spin_lock_irqsave(&acpi_bus_event_lock, flags);
- entry =
- list_entry(acpi_bus_event_list.next, struct acpi_bus_event, node);
- if (entry)
+ if (!list_empty(&acpi_bus_event_list)) {
+ entry = list_entry(acpi_bus_event_list.next,
+ struct acpi_bus_event, node);
list_del(&entry->node);
+ }
spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
if (!entry)
- return_VALUE(-ENODEV);
+ return -ENODEV;
memcpy(event, entry, sizeof(struct acpi_bus_event));
kfree(entry);
- return_VALUE(0);
+ return 0;
}
-EXPORT_SYMBOL(acpi_bus_receive_event);
+#endif /* CONFIG_ACPI_PROC_EVENT */
/* --------------------------------------------------------------------------
Notification Handling
-------------------------------------------------------------------------- */
-static int
-acpi_bus_check_device(struct acpi_device *device, int *status_changed)
+static void acpi_bus_check_device(acpi_handle handle)
{
- acpi_status status = 0;
+ struct acpi_device *device;
+ acpi_status status;
struct acpi_device_status old_status;
- ACPI_FUNCTION_TRACE("acpi_bus_check_device");
-
+ if (acpi_bus_get_device(handle, &device))
+ return;
if (!device)
- return_VALUE(-EINVAL);
-
- if (status_changed)
- *status_changed = 0;
+ return;
old_status = device->status;
*/
if (device->parent && !device->parent->status.present) {
device->status = device->parent->status;
- if (STRUCT_TO_INT(old_status) != STRUCT_TO_INT(device->status)) {
- if (status_changed)
- *status_changed = 1;
- }
- return_VALUE(0);
+ return;
}
status = acpi_bus_get_status(device);
if (ACPI_FAILURE(status))
- return_VALUE(-ENODEV);
+ return;
if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))
- return_VALUE(0);
-
- if (status_changed)
- *status_changed = 1;
+ return;
/*
* Device Insertion/Removal
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 void acpi_bus_check_scope(acpi_handle handle)
{
- int result = 0;
- int status_changed = 0;
-
- ACPI_FUNCTION_TRACE("acpi_bus_check_scope");
-
- if (!device)
- return_VALUE(-EINVAL);
-
/* Status Change? */
- result = acpi_bus_check_device(device, &status_changed);
- if (result)
- return_VALUE(result);
-
- if (!status_changed)
- return_VALUE(0);
+ acpi_bus_check_device(handle);
/*
* TBD: Enumerate child devices within this device's scope and
* run acpi_bus_check_device()'s on them.
*/
+}
- return_VALUE(0);
+static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list);
+int register_acpi_bus_notifier(struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&acpi_bus_notify_list, nb);
}
+EXPORT_SYMBOL_GPL(register_acpi_bus_notifier);
+
+void unregister_acpi_bus_notifier(struct notifier_block *nb)
+{
+ blocking_notifier_chain_unregister(&acpi_bus_notify_list, nb);
+}
+EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier);
/**
* acpi_bus_notify
*/
static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
{
- int result = 0;
struct acpi_device *device = NULL;
+ struct acpi_driver *driver;
- ACPI_FUNCTION_TRACE("acpi_bus_notify");
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n",
+ type, handle));
- if (acpi_bus_get_device(handle, &device))
- return_VOID;
+ blocking_notifier_call_chain(&acpi_bus_notify_list,
+ type, (void *)handle);
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));
- result = acpi_bus_check_scope(device);
- /*
+ acpi_bus_check_scope(handle);
+ /*
* TBD: We'll need to outsource certain events to non-ACPI
* 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));
- result = acpi_bus_check_device(device, NULL);
- /*
+ acpi_bus_check_device(handle);
+ /*
* TBD: We'll need to outsource certain events to non-ACPI
* 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));
/* 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));
/* 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));
/* 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));
/* 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));
/* 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));
/* TBD */
break;
break;
}
- return_VOID;
+ 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);
+ }
}
/* --------------------------------------------------------------------------
struct acpi_object_list arg_list = { 1, &arg };
char *message = NULL;
- ACPI_FUNCTION_TRACE("acpi_bus_init_irq");
- /*
+ /*
* Let the system know what interrupt model we are using by
* evaluating the \_PIC object, if exists.
*/
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_VALUE(-ENODEV);
+ return -ENODEV;
}
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
status = acpi_evaluate_object(NULL, "\\_PIC", &arg_list, NULL);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
- return_VALUE(0);
+ return 0;
}
+u8 acpi_gbl_permanent_mmap;
+
+
void __init acpi_early_init(void)
{
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;
+ return;
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
if (!acpi_strict)
acpi_gbl_enable_interpreter_slack = TRUE;
+ acpi_gbl_permanent_mmap = 1;
+
+ /*
+ * If the machine falls into the DMI check table,
+ * DSDT will be copied to memory
+ */
+ dmi_check_system(dsdt_dmi_table);
+
+ status = acpi_reallocate_root_table();
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX
+ "Unable to reallocate ACPI tables\n");
+ goto error0;
+ }
+
status = acpi_initialize_subsystem();
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX
goto error0;
}
- /*
- * Get a separate copy of the FADT for use by other drivers.
- */
- 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;
-
/* compatible (0) means level (3) */
- if (acpi_sci_flags.trigger == 0)
- acpi_sci_flags.trigger = 3;
-
+ if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) {
+ acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK;
+ acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL;
+ }
/* 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_gbl_FADT.sci_interrupt,
+ (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2);
} else {
- extern int acpi_sci_override_gsi;
/*
- * now that acpi_fadt is initialized,
+ * now that acpi_gbl_FADT is initialized,
* update it with result from INT_SRC_OVR parsing
*/
- acpi_fadt.sci_int = acpi_sci_override_gsi;
+ acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi;
}
#endif
goto error0;
}
- return_VOID;
+ return;
error0:
disable_acpi();
- return_VOID;
+ return;
}
static int __init acpi_bus_init(void)
acpi_status status = AE_OK;
extern acpi_status acpi_os_initialize1(void);
- ACPI_FUNCTION_TRACE("acpi_bus_init");
-
- status = acpi_os_initialize1();
+ acpi_os_initialize1();
status =
acpi_enable_subsystem(ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE);
goto error1;
}
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX
- "Unable to initialize ACPI OS objects\n");
- goto error1;
- }
-#ifdef CONFIG_ACPI_EC
/*
* ACPI 2.0 requires the EC driver to be loaded and work before
* the EC device is found in the namespace (i.e. before acpi_initialize_objects()
* is called).
*
- * This is accomplished by looking for the ECDT table, and getting
+ * This is accomplished by looking for the ECDT table, and getting
* the EC parameters out of that.
*/
status = acpi_ec_ecdt_probe();
/* Ignore result. Not having an ECDT is not fatal. */
-#endif
+
+ acpi_bus_osc_support();
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
if (ACPI_FAILURE(status)) {
goto error1;
}
+ acpi_early_processor_set_pdc();
+
+ /*
+ * Maybe EC region is required at bus_scan/acpi_get_devices. So it
+ * is necessary to enable it as early as possible.
+ */
+ acpi_boot_ec_enable();
+
printk(KERN_INFO PREFIX "Interpreter enabled\n");
+ /* Initialize sleep structures */
+ acpi_sleep_init();
+
/*
* Get the system interrupt model and evaluate \_PIC.
*/
*/
acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL);
- return_VALUE(0);
+ return 0;
/* Mimic structured exception handling */
error1:
acpi_terminate();
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
-decl_subsys(acpi, NULL, NULL);
+struct kobject *acpi_kobj;
static int __init acpi_init(void)
{
int result = 0;
- ACPI_FUNCTION_TRACE("acpi_init");
if (acpi_disabled) {
printk(KERN_INFO PREFIX "Interpreter disabled.\n");
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
- firmware_register(&acpi_subsys);
+ acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
+ if (!acpi_kobj) {
+ printk(KERN_WARNING "%s: kset create error\n", __func__);
+ acpi_kobj = NULL;
+ }
+ init_acpi_device_notify();
result = acpi_bus_init();
if (!result) {
-#ifdef CONFIG_PM_LEGACY
- if (!PM_IS_ACTIVE())
- pm_active = 1;
+ pci_mmcfg_late_init();
+ if (!(pm_flags & PM_APM))
+ pm_flags |= PM_ACPI;
else {
printk(KERN_INFO PREFIX
"APM is already active, exiting\n");
disable_acpi();
result = -ENODEV;
}
-#endif
} else
disable_acpi();
- return_VALUE(result);
+ if (acpi_disabled)
+ return result;
+
+ /*
+ * If the laptop falls into the DMI check table, the power state check
+ * will be disabled in the course of device power transistion.
+ */
+ dmi_check_system(power_nocheck_dmi_table);
+
+ acpi_scan_init();
+ acpi_ec_init();
+ acpi_power_init();
+ acpi_system_init();
+ acpi_debug_init();
+ acpi_sleep_proc_init();
+ acpi_wakeup_device_init();
+ return result;
}
subsys_initcall(acpi_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff