---------------------------
+What: i2c_adapter.dev
+ i2c_adapter.list
+When: July 2007
+Why: Superfluous, given i2c_adapter.class_dev:
+ * The "dev" was a stand-in for the physical device node that legacy
+ drivers would not have; but now it's almost always present. Any
+ remaining legacy drivers must upgrade (they now trigger warnings).
+ * The "list" duplicates class device children.
+ The delay in removing this is so upgraded lm_sensors and libsensors
+ can get deployed. (Removal causes minor changes in the sysfs layout,
+ notably the location of the adapter type name and parenting the i2c
+ client hardware directly from their controller.)
+Who: Jean Delvare <khali@linux-fr.org>,
+ David Brownell <dbrownell@users.sourceforge.net>
+
+---------------------------
+
What: IPv4 only connection tracking/NAT/helpers
When: 2.6.22
Why: The new layer 3 independant connection tracking replaces the old
---------------------------
-
++<<<<<<< test:Documentation/feature-removal-schedule.txt
+What: ACPI hotkey driver (CONFIG_ACPI_HOTKEY)
+When: 2.6.21
+Why: hotkey.c was an attempt to consolidate multiple drivers that use
+ ACPI to implement hotkeys. However, hotkeys are not documented
+ in the ACPI specification, so the drivers used undocumented
+ vendor-specific hooks and turned out to be more different than
+ the same.
+
+ Further, the keys and the features supplied by each platform
+ are different, so there will always be a need for
+ platform-specific drivers.
+
+ So the new plan is to delete hotkey.c and instead, work on the
+ platform specific drivers to try to make them look the same
+ to the user when they supply the same features.
+
+ hotkey.c has always depended on CONFIG_EXPERIMENTAL
+
+Who: Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What: /sys/firmware/acpi/namespace
+When: 2.6.21
+Why: The ACPI namespace is effectively the symbol list for
+ the BIOS. The device names are completely arbitrary
+ and have no place being exposed to user-space.
+
+ For those interested in the BIOS ACPI namespace,
+ the BIOS can be extracted and disassembled with acpidump
+ and iasl as documented in the pmtools package here:
+ http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils
+Who: Len Brown <len.brown@intel.com>
+
+---------------------------
+
+ What: ACPI procfs interface
+ When: July 2007
+ Why: After ACPI sysfs conversion, ACPI attributes will be duplicated
+ in sysfs and the ACPI procfs interface should be removed.
+ Who: Zhang Rui <rui.zhang@intel.com>
+
+ ---------------------------
+
+What: /proc/acpi/button
+When: August 2007
+Why: /proc/acpi/button has been replaced by events to the input layer
+ since 2.6.20.
+Who: Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What: JFFS (version 1)
+When: 2.6.21
+Why: Unmaintained for years, superceded by JFFS2 for years.
+Who: Jeff Garzik <jeff@garzik.org>
+
+---------------------------
bool "ACPI Support"
depends on IA64 || X86
depends on PCI
- select PM
+ depends on PM
default y
---help---
Advanced Configuration and Power Interface (ACPI) support for
Create /proc/acpi/sleep
Deprecated by /sys/power/state
+ config ACPI_PROCFS
+ bool "Procfs interface (deprecated)"
+ depends on ACPI
+ default y
+ ---help---
+ Procfs interface for ACPI is made optional for back-compatible.
+ As the same functions are duplicated in sysfs interface
+ and this proc interface will be removed some time later,
+ it's marked as deprecated.
+ ( /proc/acpi/debug_layer && debug_level are deprecated by
+ /sys/module/acpi/parameters/debug_layer && debug_level.
+ /proc/acpi/info is deprecated by
+ /sys/module/acpi/parameters/acpica_version )
+
config ACPI_AC
tristate "AC Adapter"
depends on X86
config ACPI_BUTTON
tristate "Button"
+ depends on INPUT
default y
help
This driver handles events on the power, sleep and lid buttons.
config ACPI_VIDEO
tristate "Video"
- depends on X86
+ depends on X86 && BACKLIGHT_CLASS_DEVICE
help
This driver implement the ACPI Extensions For Display Adapters
for integrated graphics devices on motherboard, as specified in
help
This driver adds support for ACPI controlled docking stations
+config ACPI_BAY
+ tristate "Removable Drive Bay (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ This driver adds support for ACPI controlled removable drive
+ bays such as the IBM ultrabay or the Dell Module Bay.
+
config ACPI_PROCESSOR
tristate "Processor"
default y
config ACPI_ASUS
tristate "ASUS/Medion Laptop Extras"
depends on X86
+ select BACKLIGHT_CLASS_DEVICE
---help---
This driver provides support for extra features of ACPI-compatible
ASUS laptops. As some of Medion laptops are made by ASUS, it may also
config ACPI_IBM
tristate "IBM ThinkPad Laptop Extras"
depends on X86
+ select BACKLIGHT_CLASS_DEVICE
---help---
This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
support for Fn-Fx key combinations, Bluetooth control, video
config ACPI_TOSHIBA
tristate "Toshiba Laptop Extras"
depends on X86
+ select BACKLIGHT_CLASS_DEVICE
---help---
This driver adds support for access to certain system settings
on "legacy free" Toshiba laptops. These laptops can be recognized by
obj-y += sleep/
obj-y += bus.o glue.o
+ obj-y += scan.o motherboard.o
obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BATTERY) += battery.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
obj-$(CONFIG_ACPI_EC) += ec.o
obj-$(CONFIG_ACPI_FAN) += fan.o
obj-$(CONFIG_ACPI_DOCK) += dock.o
-obj-$(CONFIG_ACPI_VIDEO) += video.o
+obj-$(CONFIG_ACPI_BAY) += bay.o
+obj-$(CONFIG_ACPI_VIDEO) += video.o
obj-$(CONFIG_ACPI_HOTKEY) += hotkey.o
obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
obj-$(CONFIG_ACPI_POWER) += power.o
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
obj-$(CONFIG_ACPI_IBM) += ibm_acpi.o
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
- obj-y += scan.o motherboard.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
obj-y += cm_sbs.o
obj-$(CONFIG_ACPI_SBS) += i2c_ec.o sbs.o
static int acpi_battery_add(struct acpi_device *device);
static int acpi_battery_remove(struct acpi_device *device, int type);
- static int acpi_battery_resume(struct acpi_device *device, int status);
+ static int acpi_battery_resume(struct acpi_device *device);
static struct acpi_driver acpi_battery_driver = {
.name = ACPI_BATTERY_DRIVER_NAME,
return -ENODEV;
}
- package = (union acpi_object *)buffer.pointer;
+ package = buffer.pointer;
/* Extract Package Data */
goto end;
}
- data.pointer = kmalloc(data.length, GFP_KERNEL);
+ data.pointer = kzalloc(data.length, GFP_KERNEL);
if (!data.pointer) {
result = -ENOMEM;
goto end;
}
- memset(data.pointer, 0, data.length);
status = acpi_extract_package(package, &format, &data);
if (ACPI_FAILURE(status)) {
kfree(buffer.pointer);
if (!result)
- (*bif) = (struct acpi_battery_info *)data.pointer;
+ (*bif) = data.pointer;
return result;
}
return -ENODEV;
}
- package = (union acpi_object *)buffer.pointer;
+ package = buffer.pointer;
/* Extract Package Data */
goto end;
}
- data.pointer = kmalloc(data.length, GFP_KERNEL);
+ data.pointer = kzalloc(data.length, GFP_KERNEL);
if (!data.pointer) {
result = -ENOMEM;
goto end;
}
- memset(data.pointer, 0, data.length);
status = acpi_extract_package(package, &format, &data);
if (ACPI_FAILURE(status)) {
kfree(buffer.pointer);
if (!result)
- (*bst) = (struct acpi_battery_status *)data.pointer;
+ (*bst) = data.pointer;
return result;
}
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
{
int result = 0;
- struct acpi_battery *battery = (struct acpi_battery *)seq->private;
+ struct acpi_battery *battery = seq->private;
struct acpi_battery_info *bif = NULL;
char *units = "?";
static int acpi_battery_read_state(struct seq_file *seq, void *offset)
{
int result = 0;
- struct acpi_battery *battery = (struct acpi_battery *)seq->private;
+ struct acpi_battery *battery = seq->private;
struct acpi_battery_status *bst = NULL;
char *units = "?";
static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
{
- struct acpi_battery *battery = (struct acpi_battery *)seq->private;
+ struct acpi_battery *battery = seq->private;
char *units = "?";
{
int result = 0;
char alarm_string[12] = { '\0' };
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_battery *battery = (struct acpi_battery *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_battery *battery = m->private;
if (!battery || (count > sizeof(alarm_string) - 1))
static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_battery *battery = (struct acpi_battery *)data;
+ struct acpi_battery *battery = data;
struct acpi_device *device = NULL;
if (!device)
return -EINVAL;
- battery = kmalloc(sizeof(struct acpi_battery), GFP_KERNEL);
+ battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
return -ENOMEM;
- memset(battery, 0, sizeof(struct acpi_battery));
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
if (!device || !acpi_driver_data(device))
return -EINVAL;
- battery = (struct acpi_battery *)acpi_driver_data(device);
+ battery = acpi_driver_data(device);
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
}
/* this is needed to learn about changes made in suspended state */
- static int acpi_battery_resume(struct acpi_device *device, int state)
+ static int acpi_battery_resume(struct acpi_device *device)
{
struct acpi_battery *battery;
extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
#endif
-struct fadt_descriptor acpi_fadt;
-EXPORT_SYMBOL(acpi_fadt);
-
struct acpi_device *acpi_root;
struct proc_dir_entry *acpi_root_dir;
EXPORT_SYMBOL(acpi_root_dir);
if (!device->flags.power_manageable) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
- device->kobj.name));
+ device->dev.kobj.name));
return -ENODEV;
}
/*
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;
return 0;
}
+acpi_native_uint acpi_gbl_permanent_mmap;
+
+
void __init acpi_early_init(void)
{
acpi_status status = AE_OK;
- struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
-
if (acpi_disabled)
return;
if (!acpi_strict)
acpi_gbl_enable_interpreter_slack = TRUE;
+ acpi_gbl_permanent_mmap = 1;
+
+ 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;
+ extern u8 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
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/input.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#define _COMPONENT ACPI_BUTTON_COMPONENT
ACPI_MODULE_NAME("acpi_button")
- MODULE_AUTHOR("Paul Diefenbaugh");
+MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION(ACPI_BUTTON_DRIVER_NAME);
MODULE_LICENSE("GPL");
static struct acpi_driver acpi_button_driver = {
.name = ACPI_BUTTON_DRIVER_NAME,
.class = ACPI_BUTTON_CLASS,
- .ids = "ACPI_FPB,ACPI_FSB,PNP0C0D,PNP0C0C,PNP0C0E",
+ .ids = "button_power,button_sleep,PNP0C0D,PNP0C0C,PNP0C0E",
.ops = {
.add = acpi_button_add,
.remove = acpi_button_remove,
- },
+ },
};
struct acpi_button {
struct acpi_device *device; /* Fixed button kludge */
- u8 type;
+ unsigned int type;
+ struct input_dev *input;
+ char phys[32]; /* for input device */
unsigned long pushed;
};
static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_button *button = (struct acpi_button *)seq->private;
-
+ struct acpi_button *button = seq->private;
if (!button || !button->device)
return 0;
static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_button *button = (struct acpi_button *)seq->private;
+ struct acpi_button *button = seq->private;
acpi_status status;
unsigned long state;
-
if (!button || !button->device)
return 0;
status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state);
- if (ACPI_FAILURE(status)) {
- seq_printf(seq, "state: unsupported\n");
- } else {
- seq_printf(seq, "state: %s\n",
- (state ? "open" : "closed"));
- }
-
+ seq_printf(seq, "state: %s\n",
+ ACPI_FAILURE(status) ? "unsupported" :
+ (state ? "open" : "closed"));
return 0;
}
static int acpi_button_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
- struct acpi_button *button = NULL;
-
+ struct acpi_button *button;
if (!device || !acpi_driver_data(device))
return -EINVAL;
static int acpi_button_remove_fs(struct acpi_device *device)
{
- struct acpi_button *button = NULL;
-
+ struct acpi_button *button = acpi_driver_data(device);
- button = acpi_driver_data(device);
if (acpi_device_dir(device)) {
if (button->type == ACPI_BUTTON_TYPE_LID)
remove_proc_entry(ACPI_BUTTON_FILE_STATE,
static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_button *button = (struct acpi_button *)data;
-
+ struct acpi_button *button = data;
+ struct input_dev *input;
if (!button || !button->device)
return;
switch (event) {
case ACPI_BUTTON_NOTIFY_STATUS:
+ input = button->input;
+
+ if (button->type == ACPI_BUTTON_TYPE_LID) {
+ struct acpi_handle *handle = button->device->handle;
+ unsigned long state;
+
+ if (!ACPI_FAILURE(acpi_evaluate_integer(handle, "_LID",
+ NULL, &state)))
+ input_report_switch(input, SW_LID, !state);
+
+ } else {
+ int keycode = test_bit(KEY_SLEEP, input->keybit) ?
+ KEY_SLEEP : KEY_POWER;
+
+ input_report_key(input, keycode, 1);
+ input_sync(input);
+ input_report_key(input, keycode, 0);
+ }
+ input_sync(input);
+
acpi_bus_generate_event(button->device, event,
++button->pushed);
break;
static acpi_status acpi_button_notify_fixed(void *data)
{
- struct acpi_button *button = (struct acpi_button *)data;
-
+ struct acpi_button *button = data;
if (!button)
return AE_BAD_PARAMETER;
return AE_OK;
}
-static int acpi_button_add(struct acpi_device *device)
+static int acpi_button_install_notify_handlers(struct acpi_button *button)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_button *button = NULL;
+ acpi_status status;
+ switch (button->type) {
+ case ACPI_BUTTON_TYPE_POWERF:
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_button_notify_fixed,
+ button);
+ break;
+ case ACPI_BUTTON_TYPE_SLEEPF:
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_button_notify_fixed,
+ button);
+ break;
+ default:
+ status = acpi_install_notify_handler(button->device->handle,
+ ACPI_DEVICE_NOTIFY,
+ acpi_button_notify,
+ button);
+ break;
+ }
+
+ return ACPI_FAILURE(status) ? -ENODEV : 0;
+}
+
+static void acpi_button_remove_notify_handlers(struct acpi_button *button)
+{
+ switch (button->type) {
+ case ACPI_BUTTON_TYPE_POWERF:
+ acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_button_notify_fixed);
+ break;
+ case ACPI_BUTTON_TYPE_SLEEPF:
+ acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_button_notify_fixed);
+ break;
+ default:
+ acpi_remove_notify_handler(button->device->handle,
+ ACPI_DEVICE_NOTIFY,
+ acpi_button_notify);
+ break;
+ }
+}
+
+static int acpi_button_add(struct acpi_device *device)
+{
+ int error;
+ struct acpi_button *button;
+ struct input_dev *input;
if (!device)
return -EINVAL;
- button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL);
+ button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
if (!button)
return -ENOMEM;
- memset(button, 0, sizeof(struct acpi_button));
button->device = device;
acpi_driver_data(device) = button;
+ button->input = input = input_allocate_device();
+ if (!input) {
+ error = -ENOMEM;
+ goto err_free_button;
+ }
+
/*
* Determine the button type (via hid), as fixed-feature buttons
* need to be handled a bit differently than generic-space.
} else {
printk(KERN_ERR PREFIX "Unsupported hid [%s]\n",
acpi_device_hid(device));
- result = -ENODEV;
- goto end;
+ error = -ENODEV;
+ goto err_free_input;
}
- result = acpi_button_add_fs(device);
- if (result)
- goto end;
+ error = acpi_button_add_fs(device);
+ if (error)
+ goto err_free_input;
+
+ error = acpi_button_install_notify_handlers(button);
+ if (error)
+ goto err_remove_fs;
+
+ snprintf(button->phys, sizeof(button->phys),
+ "%s/button/input0", acpi_device_hid(device));
+
+ input->name = acpi_device_name(device);
+ input->phys = button->phys;
+ input->id.bustype = BUS_HOST;
+ input->id.product = button->type;
switch (button->type) {
+ case ACPI_BUTTON_TYPE_POWER:
case ACPI_BUTTON_TYPE_POWERF:
- status =
- acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
- acpi_button_notify_fixed,
- button);
+ input->evbit[0] = BIT(EV_KEY);
+ set_bit(KEY_POWER, input->keybit);
break;
+
+ case ACPI_BUTTON_TYPE_SLEEP:
case ACPI_BUTTON_TYPE_SLEEPF:
- status =
- acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
- acpi_button_notify_fixed,
- button);
+ input->evbit[0] = BIT(EV_KEY);
+ set_bit(KEY_SLEEP, input->keybit);
break;
- default:
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_button_notify,
- button);
+
+ case ACPI_BUTTON_TYPE_LID:
+ input->evbit[0] = BIT(EV_SW);
+ set_bit(SW_LID, input->swbit);
break;
}
- if (ACPI_FAILURE(status)) {
- result = -ENODEV;
- goto end;
- }
+ error = input_register_device(input);
+ if (error)
+ goto err_remove_handlers;
if (device->wakeup.flags.valid) {
/* Button's GPE is run-wake GPE */
printk(KERN_INFO PREFIX "%s [%s]\n",
acpi_device_name(device), acpi_device_bid(device));
- end:
- if (result) {
- acpi_button_remove_fs(device);
- kfree(button);
- }
+ return 0;
- return result;
+ err_remove_handlers:
+ acpi_button_remove_notify_handlers(button);
+ err_remove_fs:
+ acpi_button_remove_fs(device);
+ err_free_input:
+ input_free_device(input);
+ err_free_button:
+ kfree(button);
+ return error;
}
static int acpi_button_remove(struct acpi_device *device, int type)
{
- acpi_status status = 0;
- struct acpi_button *button = NULL;
-
+ struct acpi_button *button;
if (!device || !acpi_driver_data(device))
return -EINVAL;
button = acpi_driver_data(device);
- /* Unregister for device notifications. */
- switch (button->type) {
- case ACPI_BUTTON_TYPE_POWERF:
- status =
- acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
- acpi_button_notify_fixed);
- break;
- case ACPI_BUTTON_TYPE_SLEEPF:
- status =
- acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
- acpi_button_notify_fixed);
- break;
- default:
- status = acpi_remove_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_button_notify);
- break;
- }
-
+ acpi_button_remove_notify_handlers(button);
acpi_button_remove_fs(device);
-
+ input_unregister_device(button->input);
kfree(button);
return 0;
static int __init acpi_button_init(void)
{
- int result = 0;
-
+ int result;
acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
if (!acpi_button_dir)
static void __exit acpi_button_exit(void)
{
-
acpi_bus_unregister_driver(&acpi_button_driver);
if (acpi_power_dir)
if (acpi_lid_dir)
remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
-
- return;
}
module_init(acpi_button_init);
return -EINVAL;
}
- container = kmalloc(sizeof(struct acpi_container), GFP_KERNEL);
+ container = kzalloc(sizeof(struct acpi_container), GFP_KERNEL);
if (!container)
return -ENOMEM;
- memset(container, 0, sizeof(struct acpi_container));
container->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_CONTAINER_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_CONTAINER_CLASS);
acpi_status status = AE_OK;
struct acpi_container *pc = NULL;
- pc = (struct acpi_container *)acpi_driver_data(device);
+ pc = acpi_driver_data(device);
kfree(pc);
return status;
}
if (ACPI_FAILURE(status) || !device) {
result = container_device_add(&device, handle);
if (!result)
- kobject_uevent(&device->kobj,
+ kobject_uevent(&device->dev.kobj,
KOBJ_ONLINE);
else
printk("Failed to add container\n");
} else {
if (ACPI_SUCCESS(status)) {
/* device exist and this is a remove request */
- kobject_uevent(&device->kobj, KOBJ_OFFLINE);
+ kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
}
}
break;
case ACPI_NOTIFY_EJECT_REQUEST:
if (!acpi_bus_get_device(handle, &device) && device) {
- kobject_uevent(&device->kobj, KOBJ_OFFLINE);
+ kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
}
break;
default:
static int acpi_fan_add(struct acpi_device *device);
static int acpi_fan_remove(struct acpi_device *device, int type);
- static int acpi_fan_suspend(struct acpi_device *device, int state);
- static int acpi_fan_resume(struct acpi_device *device, int state);
+ static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
+ static int acpi_fan_resume(struct acpi_device *device);
static struct acpi_driver acpi_fan_driver = {
.name = ACPI_FAN_DRIVER_NAME,
size_t count, loff_t * ppos)
{
int result = 0;
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_fan *fan = (struct acpi_fan *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_fan *fan = m->private;
char state_string[12] = { '\0' };
if (!device)
return -EINVAL;
- fan = kmalloc(sizeof(struct acpi_fan), GFP_KERNEL);
+ fan = kzalloc(sizeof(struct acpi_fan), GFP_KERNEL);
if (!fan)
return -ENOMEM;
- memset(fan, 0, sizeof(struct acpi_fan));
fan->device = device;
strcpy(acpi_device_name(device), "Fan");
if (!device || !acpi_driver_data(device))
return -EINVAL;
- fan = (struct acpi_fan *)acpi_driver_data(device);
+ fan = acpi_driver_data(device);
acpi_fan_remove_fs(device);
return 0;
}
- static int acpi_fan_suspend(struct acpi_device *device, int state)
+ static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state)
{
if (!device)
return -EINVAL;
return AE_OK;
}
- static int acpi_fan_resume(struct acpi_device *device, int state)
+ static int acpi_fan_resume(struct acpi_device *device)
{
int result = 0;
int power_state = 0;
ACPI_MODULE_NAME("acpi_motherboard")
/* Dell use PNP0C01 instead of PNP0C02 */
- #define ACPI_MB_HID1 "PNP0C01"
- #define ACPI_MB_HID2 "PNP0C02"
+ #define ACPI_MB_HID "PNP0C01,PNP0C02"
/**
* Doesn't care about legacy IO ports, only IO ports beyond 0x1000 are reserved
* Doesn't care about the failure of 'request_region', since other may reserve
return 0;
}
- static struct acpi_driver acpi_motherboard_driver1 = {
+ static struct acpi_driver acpi_motherboard_driver = {
.name = "motherboard",
.class = "",
- .ids = ACPI_MB_HID1,
- .ops = {
- .add = acpi_motherboard_add,
- },
- };
-
- static struct acpi_driver acpi_motherboard_driver2 = {
- .name = "motherboard",
- .class = "",
- .ids = ACPI_MB_HID2,
+ .ids = ACPI_MB_HID,
.ops = {
.add = acpi_motherboard_add,
},
if (!addr->address || !length)
return;
- if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+ if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_IO)
request_region(addr->address, length, desc);
- else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+ else if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
request_mem_region(addr->address, length, desc);
}
static void __init acpi_reserve_resources(void)
{
- acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk,
- acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK");
+ acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block,
+ acpi_gbl_FADT.pm1_event_length, "ACPI PM1a_EVT_BLK");
- acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk,
- acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK");
+ acpi_request_region(&acpi_gbl_FADT.xpm1b_event_block,
+ acpi_gbl_FADT.pm1_event_length, "ACPI PM1b_EVT_BLK");
- acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk,
- acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK");
+ acpi_request_region(&acpi_gbl_FADT.xpm1a_control_block,
+ acpi_gbl_FADT.pm1_control_length, "ACPI PM1a_CNT_BLK");
- acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk,
- acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK");
+ acpi_request_region(&acpi_gbl_FADT.xpm1b_control_block,
+ acpi_gbl_FADT.pm1_control_length, "ACPI PM1b_CNT_BLK");
- if (acpi_gbl_FADT->pm_tm_len == 4)
- acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR");
+ if (acpi_gbl_FADT.pm_timer_length == 4)
+ acpi_request_region(&acpi_gbl_FADT.xpm_timer_block, 4, "ACPI PM_TMR");
- acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk,
- acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK");
+ acpi_request_region(&acpi_gbl_FADT.xpm2_control_block,
+ acpi_gbl_FADT.pm2_control_length, "ACPI PM2_CNT_BLK");
/* Length of GPE blocks must be a non-negative multiple of 2 */
- if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1))
- acpi_request_region(&acpi_gbl_FADT->xgpe0_blk,
- acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK");
+ if (!(acpi_gbl_FADT.gpe0_block_length & 0x1))
+ acpi_request_region(&acpi_gbl_FADT.xgpe0_block,
+ acpi_gbl_FADT.gpe0_block_length, "ACPI GPE0_BLK");
- if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1))
- acpi_request_region(&acpi_gbl_FADT->xgpe1_blk,
- acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK");
+ if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
+ acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
+ acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
}
static int __init acpi_motherboard_init(void)
{
- acpi_bus_register_driver(&acpi_motherboard_driver1);
- acpi_bus_register_driver(&acpi_motherboard_driver2);
+ acpi_bus_register_driver(&acpi_motherboard_driver);
/*
* Guarantee motherboard IO reservation first
* This module must run after scan.c
struct acpi_pci_driver **pptr = &sub_driver;
while (*pptr) {
- if (*pptr != driver)
- continue;
- *pptr = (*pptr)->next;
- break;
+ if (*pptr == driver)
+ break;
+ pptr = &(*pptr)->next;
}
+ BUG_ON(!*pptr);
+ *pptr = (*pptr)->next;
if (!driver->remove)
return;
EXPORT_SYMBOL(acpi_pci_unregister_driver);
+acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
+{
+ struct acpi_pci_root *tmp;
+
+ list_for_each_entry(tmp, &acpi_pci_roots, node) {
+ if ((tmp->id.segment == (u16) seg) && (tmp->id.bus == (u16) bus))
+ return tmp->device->handle;
+ }
+ return NULL;
+}
+
+EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
+
static acpi_status
get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
{
- int *busnr = (int *)data;
+ int *busnr = data;
struct acpi_resource_address64 address;
if (resource->type != ACPI_RESOURCE_TYPE_ADDRESS16 &&
return AE_OK;
}
+ static void acpi_pci_bridge_scan(struct acpi_device *device)
+ {
+ int status;
+ struct acpi_device *child = NULL;
+
+ if (device->flags.bus_address)
+ if (device->parent && device->parent->ops.bind) {
+ status = device->parent->ops.bind(device);
+ if (!status) {
+ list_for_each_entry(child, &device->children, node)
+ acpi_pci_bridge_scan(child);
+ }
+ }
+ }
+
static int acpi_pci_root_add(struct acpi_device *device)
{
int result = 0;
acpi_status status = AE_OK;
unsigned long value = 0;
acpi_handle handle = NULL;
+ struct acpi_device *child;
if (!device)
return -EINVAL;
- root = kmalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
+ root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
return -ENOMEM;
- memset(root, 0, sizeof(struct acpi_pci_root));
INIT_LIST_HEAD(&root->node);
root->device = device;
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
acpi_driver_data(device) = root;
- /*
- * TBD: Doesn't the bus driver automatically set this?
- */
device->ops.bind = acpi_pci_bind;
/*
result = acpi_pci_irq_add_prt(device->handle, root->id.segment,
root->id.bus);
+ /*
+ * Scan and bind all _ADR-Based Devices
+ */
+ list_for_each_entry(child, &device->children, node)
+ acpi_pci_bridge_scan(child);
+
end:
if (result) {
if (!list_empty(&root->node))
if (!device || !acpi_driver_data(device))
return -EINVAL;
- root = (struct acpi_pci_root *)acpi_driver_data(device);
+ root = acpi_driver_data(device);
kfree(root);
static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_processor *pr = (struct acpi_processor *)seq->private;
+ struct acpi_processor *pr = seq->private;
if (!pr)
}
/* Use the acpiid in MADT to map cpus in case of SMP */
+
#ifndef CONFIG_SMP
-#define convert_acpiid_to_cpu(acpi_id) (-1)
+static int get_cpu_id(acpi_handle handle, u32 acpi_id) {return -1;}
#else
+static struct acpi_table_madt *madt;
+
+static int map_lapic_id(struct acpi_subtable_header *entry,
+ u32 acpi_id, int *apic_id)
+{
+ struct acpi_madt_local_apic *lapic =
+ (struct acpi_madt_local_apic *)entry;
+ if ((lapic->lapic_flags & ACPI_MADT_ENABLED) &&
+ lapic->processor_id == acpi_id) {
+ *apic_id = lapic->id;
+ return 1;
+ }
+ return 0;
+}
+
+static int map_lsapic_id(struct acpi_subtable_header *entry,
+ u32 acpi_id, int *apic_id)
+{
+ struct acpi_madt_local_sapic *lsapic =
+ (struct acpi_madt_local_sapic *)entry;
+ /* Only check enabled APICs*/
+ if (lsapic->lapic_flags & ACPI_MADT_ENABLED) {
+ /* First check against id */
+ if (lsapic->processor_id == acpi_id) {
+ *apic_id = lsapic->id;
+ return 1;
+ /* Check against optional uid */
+ } else if (entry->length >= 16 &&
+ lsapic->uid == acpi_id) {
+ *apic_id = lsapic->uid;
+ return 1;
+ }
+ }
+ return 0;
+}
+
#ifdef CONFIG_IA64
-#define arch_acpiid_to_apicid ia64_acpiid_to_sapicid
#define arch_cpu_to_apicid ia64_cpu_to_sapicid
-#define ARCH_BAD_APICID (0xffff)
#else
-#define arch_acpiid_to_apicid x86_acpiid_to_apicid
#define arch_cpu_to_apicid x86_cpu_to_apicid
-#define ARCH_BAD_APICID (0xff)
#endif
-static int convert_acpiid_to_cpu(u8 acpi_id)
+static int map_madt_entry(u32 acpi_id)
+{
+ unsigned long madt_end, entry;
+ int apic_id = -1;
+
+ if (!madt)
+ return apic_id;
+
+ entry = (unsigned long)madt;
+ madt_end = entry + madt->header.length;
+
+ /* Parse all entries looking for a match. */
+
+ entry += sizeof(struct acpi_table_madt);
+ while (entry + sizeof(struct acpi_subtable_header) < madt_end) {
+ struct acpi_subtable_header *header =
+ (struct acpi_subtable_header *)entry;
+ if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) {
+ if (map_lapic_id(header, acpi_id, &apic_id))
+ break;
+ } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
+ if (map_lsapic_id(header, acpi_id, &apic_id))
+ break;
+ }
+ entry += header->length;
+ }
+ return apic_id;
+}
+
+static int map_mat_entry(acpi_handle handle, u32 acpi_id)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ struct acpi_subtable_header *header;
+ int apic_id = -1;
+
+ if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
+ goto exit;
+
+ if (!buffer.length || !buffer.pointer)
+ goto exit;
+
+ obj = buffer.pointer;
+ if (obj->type != ACPI_TYPE_BUFFER ||
+ obj->buffer.length < sizeof(struct acpi_subtable_header)) {
+ goto exit;
+ }
+
+ header = (struct acpi_subtable_header *)obj->buffer.pointer;
+ if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) {
+ map_lapic_id(header, acpi_id, &apic_id);
+ } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
+ map_lsapic_id(header, acpi_id, &apic_id);
+ }
+
+exit:
+ if (buffer.pointer)
+ kfree(buffer.pointer);
+ return apic_id;
+}
+
+static int get_cpu_id(acpi_handle handle, u32 acpi_id)
{
- u16 apic_id;
int i;
+ int apic_id = -1;
- apic_id = arch_acpiid_to_apicid[acpi_id];
- if (apic_id == ARCH_BAD_APICID)
- return -1;
+ apic_id = map_mat_entry(handle, acpi_id);
+ if (apic_id == -1)
+ apic_id = map_madt_entry(acpi_id);
+ if (apic_id == -1)
+ return apic_id;
- for (i = 0; i < NR_CPUS; i++) {
+ for (i = 0; i < NR_CPUS; ++i) {
if (arch_cpu_to_apicid[i] == apic_id)
return i;
}
Driver Interface
-------------------------------------------------------------------------- */
-static int acpi_processor_get_info(struct acpi_processor *pr)
+static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
{
acpi_status status = 0;
union acpi_object object = { 0 };
* Check to see if we have bus mastering arbitration control. This
* is required for proper C3 usage (to maintain cache coherency).
*/
- if (acpi_fadt.V1_pm2_cnt_blk && acpi_fadt.pm2_cnt_len) {
+ if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) {
pr->flags.bm_control = 1;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Bus mastering arbitration control present\n"));
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No bus mastering arbitration control\n"));
- /*
- * Evalute the processor object. Note that it is common on SMP to
- * have the first (boot) processor with a valid PBLK address while
- * all others have a NULL address.
- */
- status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Evaluating processor object\n");
- return -ENODEV;
- }
-
- /*
- * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
- * >>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
- */
- pr->acpi_id = object.processor.proc_id;
+ /* Check if it is a Device with HID and UID */
+ if (has_uid) {
+ unsigned long value;
+ status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
+ NULL, &value);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX "Evaluating processor _UID\n");
+ return -ENODEV;
+ }
+ pr->acpi_id = value;
+ } else {
+ /*
+ * Evalute the processor object. Note that it is common on SMP to
+ * have the first (boot) processor with a valid PBLK address while
+ * all others have a NULL address.
+ */
+ status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX "Evaluating processor object\n");
+ return -ENODEV;
+ }
- cpu_index = convert_acpiid_to_cpu(pr->acpi_id);
+ /*
+ * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
+ * >>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
+ */
+ pr->acpi_id = object.processor.proc_id;
+ }
+ cpu_index = get_cpu_id(pr->handle, pr->acpi_id);
/* Handle UP system running SMP kernel, with no LAPIC in MADT */
if (!cpu0_initialized && (cpu_index == -1) &&
* less than the max # of CPUs. They should be ignored _iff
* they are physically not present.
*/
- if (cpu_index == -1) {
+ if (pr->id == -1) {
if (ACPI_FAILURE
(acpi_processor_hotadd_init(pr->handle, &pr->id))) {
- printk(KERN_ERR PREFIX
- "Getting cpuindex for acpiid 0x%x\n",
- pr->acpi_id);
return -ENODEV;
}
}
object.processor.pblk_length);
else {
pr->throttling.address = object.processor.pblk_address;
- pr->throttling.duty_offset = acpi_fadt.duty_offset;
- pr->throttling.duty_width = acpi_fadt.duty_width;
+ pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset;
+ pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
pr->pblk = object.processor.pblk_address;
pr = acpi_driver_data(device);
- result = acpi_processor_get_info(pr);
+ result = acpi_processor_get_info(pr, device->flags.unique_id);
if (result) {
/* Processor is physically not present */
return 0;
* Don't trust it blindly
*/
if (processor_device_array[pr->id] != NULL &&
- processor_device_array[pr->id] != (void *)device) {
+ processor_device_array[pr->id] != device) {
printk(KERN_WARNING "BIOS reported wrong ACPI id"
"for the processor\n");
return -ENODEV;
}
- processor_device_array[pr->id] = (void *)device;
+ processor_device_array[pr->id] = device;
processors[pr->id] = pr;
static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_processor *pr = (struct acpi_processor *)data;
+ struct acpi_processor *pr = data;
struct acpi_device *device = NULL;
if (!device)
return -EINVAL;
- pr = kmalloc(sizeof(struct acpi_processor), GFP_KERNEL);
+ pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
if (!pr)
return -ENOMEM;
- memset(pr, 0, sizeof(struct acpi_processor));
pr->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
if (!device || !acpi_driver_data(device))
return -EINVAL;
- pr = (struct acpi_processor *)acpi_driver_data(device);
+ pr = acpi_driver_data(device);
if (pr->id >= NR_CPUS) {
kfree(pr);
return -ENODEV;
if ((pr->id >= 0) && (pr->id < NR_CPUS)) {
- kobject_uevent(&(*device)->kobj, KOBJ_ONLINE);
+ kobject_uevent(&(*device)->dev.kobj, KOBJ_ONLINE);
}
return 0;
}
}
if (pr->id >= 0 && (pr->id < NR_CPUS)) {
- kobject_uevent(&device->kobj, KOBJ_OFFLINE);
+ kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
break;
}
result = acpi_processor_start(device);
if ((!result) && ((pr->id >= 0) && (pr->id < NR_CPUS))) {
- kobject_uevent(&device->kobj, KOBJ_ONLINE);
+ kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
} else {
printk(KERN_ERR PREFIX "Device [%s] failed to start\n",
acpi_device_bid(device));
}
if ((pr->id < NR_CPUS) && (cpu_present(pr->id)))
- kobject_uevent(&device->kobj, KOBJ_OFFLINE);
+ kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
memset(&processors, 0, sizeof(processors));
memset(&errata, 0, sizeof(errata));
+#ifdef CONFIG_SMP
+ if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
+ (struct acpi_table_header **)&madt)))
+ madt = 0;
+#endif
+
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
- return 0;
+ return -ENOMEM;
acpi_processor_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_processor_driver);
if (result < 0) {
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
- return 0;
+ return result;
}
acpi_processor_install_hotplug_notify();
#define ACPI_BUS_DEVICE_NAME "System Bus"
static LIST_HEAD(acpi_device_list);
+ static LIST_HEAD(acpi_bus_id_list);
DEFINE_SPINLOCK(acpi_device_lock);
LIST_HEAD(acpi_wakeup_device_list);
-
- static void acpi_device_release(struct kobject *kobj)
- {
- struct acpi_device *dev = container_of(kobj, struct acpi_device, kobj);
- kfree(dev->pnp.cid_list);
- kfree(dev);
- }
-
- struct acpi_device_attribute {
- struct attribute attr;
- ssize_t(*show) (struct acpi_device *, char *);
- ssize_t(*store) (struct acpi_device *, const char *, size_t);
+ struct acpi_device_bus_id{
+ char bus_id[15];
+ unsigned int instance_no;
+ struct list_head node;
};
-
- typedef void acpi_device_sysfs_files(struct kobject *,
- const struct attribute *);
-
- static void setup_sys_fs_device_files(struct acpi_device *dev,
- acpi_device_sysfs_files * func);
-
- #define create_sysfs_device_files(dev) \
- setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_create_file)
- #define remove_sysfs_device_files(dev) \
- setup_sys_fs_device_files(dev, (acpi_device_sysfs_files *)&sysfs_remove_file)
-
- #define to_acpi_device(n) container_of(n, struct acpi_device, kobj)
- #define to_handle_attr(n) container_of(n, struct acpi_device_attribute, attr);
-
- static ssize_t acpi_device_attr_show(struct kobject *kobj,
- struct attribute *attr, char *buf)
- {
- struct acpi_device *device = to_acpi_device(kobj);
- struct acpi_device_attribute *attribute = to_handle_attr(attr);
- return attribute->show ? attribute->show(device, buf) : -EIO;
- }
- static ssize_t acpi_device_attr_store(struct kobject *kobj,
- struct attribute *attr, const char *buf,
- size_t len)
+ static int acpi_eject_operation(acpi_handle handle, int lockable)
{
- struct acpi_device *device = to_acpi_device(kobj);
- struct acpi_device_attribute *attribute = to_handle_attr(attr);
- return attribute->store ? attribute->store(device, buf, len) : -EIO;
- }
-
- static struct sysfs_ops acpi_device_sysfs_ops = {
- .show = acpi_device_attr_show,
- .store = acpi_device_attr_store,
- };
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status = AE_OK;
- static struct kobj_type ktype_acpi_ns = {
- .sysfs_ops = &acpi_device_sysfs_ops,
- .release = acpi_device_release,
- };
+ /*
+ * TBD: evaluate _PS3?
+ */
- static int namespace_uevent(struct kset *kset, struct kobject *kobj,
- char **envp, int num_envp, char *buffer,
- int buffer_size)
- {
- struct acpi_device *dev = to_acpi_device(kobj);
- int i = 0;
- int len = 0;
+ if (lockable) {
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = 0;
+ acpi_evaluate_object(handle, "_LCK", &arg_list, NULL);
+ }
- if (!dev->driver)
- return 0;
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = 1;
- if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
- "PHYSDEVDRIVER=%s", dev->driver->name))
- return -ENOMEM;
+ /*
+ * TBD: _EJD support.
+ */
- envp[i] = NULL;
+ status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
+ if (ACPI_FAILURE(status)) {
+ return (-ENODEV);
+ }
- return 0;
+ return (0);
}
- static struct kset_uevent_ops namespace_uevent_ops = {
- .uevent = &namespace_uevent,
- };
+ static ssize_t
+ acpi_eject_store(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+ {
+ int result;
+ int ret = count;
+ int islockable;
+ acpi_status status;
+ acpi_handle handle;
+ acpi_object_type type = 0;
+ struct acpi_device *acpi_device = to_acpi_device(d);
- static struct kset acpi_namespace_kset = {
- .kobj = {
- .name = "namespace",
- },
- .subsys = &acpi_subsys,
- .ktype = &ktype_acpi_ns,
- .uevent_ops = &namespace_uevent_ops,
- };
+ if ((!count) || (buf[0] != '1')) {
+ return -EINVAL;
+ }
+ #ifndef FORCE_EJECT
+ if (acpi_device->driver == NULL) {
+ ret = -ENODEV;
+ goto err;
+ }
+ #endif
+ status = acpi_get_type(acpi_device->handle, &type);
+ if (ACPI_FAILURE(status) || (!acpi_device->flags.ejectable)) {
+ ret = -ENODEV;
+ goto err;
+ }
- static void acpi_device_register(struct acpi_device *device,
- struct acpi_device *parent)
- {
- int err;
+ islockable = acpi_device->flags.lockable;
+ handle = acpi_device->handle;
- /*
- * Linkage
- * -------
- * Link this device to its parent and siblings.
- */
- INIT_LIST_HEAD(&device->children);
- INIT_LIST_HEAD(&device->node);
- INIT_LIST_HEAD(&device->g_list);
- INIT_LIST_HEAD(&device->wakeup_list);
+ result = acpi_bus_trim(acpi_device, 1);
- spin_lock(&acpi_device_lock);
- if (device->parent) {
- list_add_tail(&device->node, &device->parent->children);
- list_add_tail(&device->g_list, &device->parent->g_list);
- } else
- list_add_tail(&device->g_list, &acpi_device_list);
- if (device->wakeup.flags.valid)
- list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
- spin_unlock(&acpi_device_lock);
+ if (!result)
+ result = acpi_eject_operation(handle, islockable);
- strlcpy(device->kobj.name, device->pnp.bus_id, KOBJ_NAME_LEN);
- if (parent)
- device->kobj.parent = &parent->kobj;
- device->kobj.ktype = &ktype_acpi_ns;
- device->kobj.kset = &acpi_namespace_kset;
- err = kobject_register(&device->kobj);
- if (err < 0)
- printk(KERN_WARNING "%s: kobject_register error: %d\n",
- __FUNCTION__, err);
- create_sysfs_device_files(device);
+ if (result) {
+ ret = -EBUSY;
+ }
+ err:
+ return ret;
}
- static void acpi_device_unregister(struct acpi_device *device, int type)
- {
- spin_lock(&acpi_device_lock);
- if (device->parent) {
- list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
-
- list_del(&device->wakeup_list);
+ static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
- spin_unlock(&acpi_device_lock);
+ static ssize_t
+ acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
- acpi_detach_data(device->handle, acpi_bus_data_handler);
- remove_sysfs_device_files(device);
- kobject_unregister(&device->kobj);
+ return sprintf(buf, "%s\n", acpi_dev->pnp.hardware_id);
}
+ static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL);
- void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
- {
+ static ssize_t
+ acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
+ int result;
- /* TBD */
+ result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
+ if(result)
+ goto end;
- return;
+ result = sprintf(buf, "%s\n", (char*)path.pointer);
+ kfree(path.pointer);
+ end:
+ return result;
}
+ static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
- static int acpi_bus_get_power_flags(struct acpi_device *device)
+ static int acpi_device_setup_files(struct acpi_device *dev)
{
- acpi_status status = 0;
- acpi_handle handle = NULL;
- u32 i = 0;
-
-
- /*
- * Power Management Flags
- */
- status = acpi_get_handle(device->handle, "_PSC", &handle);
- if (ACPI_SUCCESS(status))
- device->power.flags.explicit_get = 1;
- status = acpi_get_handle(device->handle, "_IRC", &handle);
- if (ACPI_SUCCESS(status))
- device->power.flags.inrush_current = 1;
+ acpi_status status;
+ acpi_handle temp;
+ int result = 0;
/*
- * Enumerate supported power management states
+ * Devices gotten from FADT don't have a "path" attribute
*/
- for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) {
- struct acpi_device_power_state *ps = &device->power.states[i];
- char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
-
- /* Evaluate "_PRx" to se if power resources are referenced */
- acpi_evaluate_reference(device->handle, object_name, NULL,
- &ps->resources);
- if (ps->resources.count) {
- device->power.flags.power_resources = 1;
- ps->flags.valid = 1;
- }
-
- /* Evaluate "_PSx" to see if we can do explicit sets */
- object_name[2] = 'S';
- status = acpi_get_handle(device->handle, object_name, &handle);
- if (ACPI_SUCCESS(status)) {
- ps->flags.explicit_set = 1;
- ps->flags.valid = 1;
- }
-
- /* State is valid if we have some power control */
- if (ps->resources.count || ps->flags.explicit_set)
- ps->flags.valid = 1;
-
- ps->power = -1; /* Unknown - driver assigned */
- ps->latency = -1; /* Unknown - driver assigned */
+ if(dev->handle) {
+ result = device_create_file(&dev->dev, &dev_attr_path);
+ if(result)
+ goto end;
}
- /* Set defaults for D0 and D3 states (always valid) */
- device->power.states[ACPI_STATE_D0].flags.valid = 1;
- device->power.states[ACPI_STATE_D0].power = 100;
- device->power.states[ACPI_STATE_D3].flags.valid = 1;
- device->power.states[ACPI_STATE_D3].power = 0;
-
- /* TBD: System wake support and resource requirements. */
-
- device->power.state = ACPI_STATE_UNKNOWN;
+ if(dev->flags.hardware_id) {
+ result = device_create_file(&dev->dev, &dev_attr_hid);
+ if(result)
+ goto end;
+ }
- return 0;
+ /*
+ * If device has _EJ0, 'eject' file is created that is used to trigger
+ * hot-removal function from userland.
+ */
+ status = acpi_get_handle(dev->handle, "_EJ0", &temp);
+ if (ACPI_SUCCESS(status))
+ result = device_create_file(&dev->dev, &dev_attr_eject);
+ end:
+ return result;
}
- int acpi_match_ids(struct acpi_device *device, char *ids)
+ static void acpi_device_remove_files(struct acpi_device *dev)
{
- if (device->flags.hardware_id)
- if (strstr(ids, device->pnp.hardware_id))
- return 0;
+ acpi_status status;
+ acpi_handle temp;
- if (device->flags.compatible_ids) {
- struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
- int i;
+ /*
+ * If device has _EJ0, 'eject' file is created that is used to trigger
+ * hot-removal function from userland.
+ */
+ status = acpi_get_handle(dev->handle, "_EJ0", &temp);
+ if (ACPI_SUCCESS(status))
+ device_remove_file(&dev->dev, &dev_attr_eject);
- /* compare multiple _CID entries against driver ids */
- for (i = 0; i < cid_list->count; i++) {
- if (strstr(ids, cid_list->id[i].value))
- return 0;
- }
- }
- return -ENOENT;
+ if(dev->flags.hardware_id)
+ device_remove_file(&dev->dev, &dev_attr_hid);
+ if(dev->handle)
+ device_remove_file(&dev->dev, &dev_attr_path);
}
-
- static acpi_status
- acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
- union acpi_object *package)
+ /* --------------------------------------------------------------------------
+ ACPI Bus operations
+ -------------------------------------------------------------------------- */
+ static void acpi_device_release(struct device *dev)
{
- int i = 0;
- union acpi_object *element = NULL;
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
- if (!device || !package || (package->package.count < 2))
- return AE_BAD_PARAMETER;
-
- element = &(package->package.elements[0]);
- if (!element)
- return AE_BAD_PARAMETER;
- if (element->type == ACPI_TYPE_PACKAGE) {
- if ((element->package.count < 2) ||
- (element->package.elements[0].type !=
- ACPI_TYPE_LOCAL_REFERENCE)
- || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
- return AE_BAD_DATA;
- device->wakeup.gpe_device =
- element->package.elements[0].reference.handle;
- device->wakeup.gpe_number =
- (u32) element->package.elements[1].integer.value;
- } else if (element->type == ACPI_TYPE_INTEGER) {
- device->wakeup.gpe_number = element->integer.value;
- } else
- return AE_BAD_DATA;
-
- element = &(package->package.elements[1]);
- if (element->type != ACPI_TYPE_INTEGER) {
- return AE_BAD_DATA;
- }
- device->wakeup.sleep_state = element->integer.value;
-
- if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
- return AE_NO_MEMORY;
- }
- device->wakeup.resources.count = package->package.count - 2;
- for (i = 0; i < device->wakeup.resources.count; i++) {
- element = &(package->package.elements[i + 2]);
- if (element->type != ACPI_TYPE_ANY) {
- return AE_BAD_DATA;
- }
-
- device->wakeup.resources.handles[i] = element->reference.handle;
- }
-
- return AE_OK;
+ kfree(acpi_dev->pnp.cid_list);
+ kfree(acpi_dev);
}
- static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
+ static int acpi_device_suspend(struct device *dev, pm_message_t state)
{
- acpi_status status = 0;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *package = NULL;
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = acpi_dev->driver;
+ if (acpi_drv && acpi_drv->ops.suspend)
+ return acpi_drv->ops.suspend(acpi_dev, state);
+ return 0;
+ }
- /* _PRW */
- status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
- goto end;
- }
-
- package = (union acpi_object *)buffer.pointer;
- status = acpi_bus_extract_wakeup_device_power_package(device, package);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
- goto end;
- }
-
- kfree(buffer.pointer);
-
- device->wakeup.flags.valid = 1;
- /* Power button, Lid switch always enable wakeup */
- if (!acpi_match_ids(device, "PNP0C0D,PNP0C0C,PNP0C0E"))
- device->wakeup.flags.run_wake = 1;
+ static int acpi_device_resume(struct device *dev)
+ {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = acpi_dev->driver;
- end:
- if (ACPI_FAILURE(status))
- device->flags.wake_capable = 0;
+ if (acpi_drv && acpi_drv->ops.resume)
+ return acpi_drv->ops.resume(acpi_dev);
return 0;
}
- /* --------------------------------------------------------------------------
- ACPI sysfs device file support
- -------------------------------------------------------------------------- */
- static ssize_t acpi_eject_store(struct acpi_device *device,
- const char *buf, size_t count);
-
- #define ACPI_DEVICE_ATTR(_name,_mode,_show,_store) \
- static struct acpi_device_attribute acpi_device_attr_##_name = \
- __ATTR(_name, _mode, _show, _store)
+ static int acpi_bus_match(struct device *dev, struct device_driver *drv)
+ {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = to_acpi_driver(drv);
- ACPI_DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
+ return !acpi_match_ids(acpi_dev, acpi_drv->ids);
+ }
- /**
- * setup_sys_fs_device_files - sets up the device files under device namespace
- * @dev: acpi_device object
- * @func: function pointer to create or destroy the device file
- */
- static void
- setup_sys_fs_device_files(struct acpi_device *dev,
- acpi_device_sysfs_files * func)
+ static int acpi_device_uevent(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
{
- acpi_status status;
- acpi_handle temp = NULL;
-
- /*
- * If device has _EJ0, 'eject' file is created that is used to trigger
- * hot-removal function from userland.
- */
- status = acpi_get_handle(dev->handle, "_EJ0", &temp);
- if (ACPI_SUCCESS(status))
- (*(func)) (&dev->kobj, &acpi_device_attr_eject.attr);
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ int i = 0, length = 0, ret = 0;
+
+ if (acpi_dev->flags.hardware_id)
+ ret = add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "HWID=%s", acpi_dev->pnp.hardware_id);
+ if (ret)
+ return -ENOMEM;
+ if (acpi_dev->flags.compatible_ids) {
+ int j;
+ struct acpi_compatible_id_list *cid_list;
+
+ cid_list = acpi_dev->pnp.cid_list;
+
+ for (j = 0; j < cid_list->count; j++) {
+ ret = add_uevent_var(envp, num_envp, &i, buffer,
+ buffer_size, &length, "COMPTID=%s",
+ cid_list->id[j].value);
+ if (ret)
+ return -ENOMEM;
+ }
+ }
+
+ envp[i] = NULL;
+ return 0;
}
- static int acpi_eject_operation(acpi_handle handle, int lockable)
+ static int acpi_bus_driver_init(struct acpi_device *, struct acpi_driver *);
+ static int acpi_start_single_object(struct acpi_device *);
+ static int acpi_device_probe(struct device * dev)
{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status = AE_OK;
-
- /*
- * TBD: evaluate _PS3?
- */
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver);
+ int ret;
+
+ ret = acpi_bus_driver_init(acpi_dev, acpi_drv);
+ if (!ret) {
+ if (acpi_dev->bus_ops.acpi_op_start)
+ acpi_start_single_object(acpi_dev);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Found driver [%s] for device [%s]\n",
+ acpi_drv->name, acpi_dev->pnp.bus_id));
+ get_device(dev);
+ }
+ return ret;
+ }
- if (lockable) {
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 0;
- acpi_evaluate_object(handle, "_LCK", &arg_list, NULL);
+ static int acpi_device_remove(struct device * dev)
+ {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = acpi_dev->driver;
+
+ if (acpi_drv) {
+ if (acpi_drv->ops.stop)
+ acpi_drv->ops.stop(acpi_dev, acpi_dev->removal_type);
+ if (acpi_drv->ops.remove)
+ acpi_drv->ops.remove(acpi_dev, acpi_dev->removal_type);
}
+ acpi_dev->driver = NULL;
+ acpi_driver_data(dev) = NULL;
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
+ put_device(dev);
+ return 0;
+ }
- /*
- * TBD: _EJD support.
- */
+ static void acpi_device_shutdown(struct device *dev)
+ {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+ struct acpi_driver *acpi_drv = acpi_dev->driver;
- status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status)) {
- return (-ENODEV);
- }
+ if (acpi_drv && acpi_drv->ops.shutdown)
+ acpi_drv->ops.shutdown(acpi_dev);
- return (0);
+ return ;
}
- static ssize_t
- acpi_eject_store(struct acpi_device *device, const char *buf, size_t count)
+ static struct bus_type acpi_bus_type = {
+ .name = "acpi",
+ .suspend = acpi_device_suspend,
+ .resume = acpi_device_resume,
+ .shutdown = acpi_device_shutdown,
+ .match = acpi_bus_match,
+ .probe = acpi_device_probe,
+ .remove = acpi_device_remove,
+ .uevent = acpi_device_uevent,
+ };
+
+ static int acpi_device_register(struct acpi_device *device,
+ struct acpi_device *parent)
{
int result;
- int ret = count;
- int islockable;
- acpi_status status;
- acpi_handle handle;
- acpi_object_type type = 0;
+ struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id;
+ int found = 0;
+ /*
+ * Linkage
+ * -------
+ * Link this device to its parent and siblings.
+ */
+ INIT_LIST_HEAD(&device->children);
+ INIT_LIST_HEAD(&device->node);
+ INIT_LIST_HEAD(&device->g_list);
+ INIT_LIST_HEAD(&device->wakeup_list);
- if ((!count) || (buf[0] != '1')) {
- return -EINVAL;
+ new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
+ if (!new_bus_id) {
+ printk(KERN_ERR PREFIX "Memory allocation error\n");
+ return -ENOMEM;
}
- #ifndef FORCE_EJECT
- if (device->driver == NULL) {
- ret = -ENODEV;
- goto err;
+
+ spin_lock(&acpi_device_lock);
+ /*
+ * Find suitable bus_id and instance number in acpi_bus_id_list
+ * If failed, create one and link it into acpi_bus_id_list
+ */
+ list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node) {
+ if(!strcmp(acpi_device_bus_id->bus_id, device->flags.hardware_id? device->pnp.hardware_id : "device")) {
+ acpi_device_bus_id->instance_no ++;
+ found = 1;
+ kfree(new_bus_id);
+ break;
+ }
}
- #endif
- status = acpi_get_type(device->handle, &type);
- if (ACPI_FAILURE(status) || (!device->flags.ejectable)) {
- ret = -ENODEV;
- goto err;
+ if(!found) {
+ acpi_device_bus_id = new_bus_id;
+ strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "device");
+ acpi_device_bus_id->instance_no = 0;
+ list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list);
}
+ sprintf(device->dev.bus_id, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
- islockable = device->flags.lockable;
- handle = device->handle;
-
- result = acpi_bus_trim(device, 1);
-
- if (!result)
- result = acpi_eject_operation(handle, islockable);
+ if (device->parent) {
+ list_add_tail(&device->node, &device->parent->children);
+ list_add_tail(&device->g_list, &device->parent->g_list);
+ } else
+ list_add_tail(&device->g_list, &acpi_device_list);
+ if (device->wakeup.flags.valid)
+ list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
+ spin_unlock(&acpi_device_lock);
- if (result) {
- ret = -EBUSY;
+ if (device->parent)
+ device->dev.parent = &parent->dev;
+ device->dev.bus = &acpi_bus_type;
+ device_initialize(&device->dev);
+ device->dev.release = &acpi_device_release;
+ result = device_add(&device->dev);
+ if(result) {
+ printk("Error adding device %s", device->dev.bus_id);
+ goto end;
}
- err:
- return ret;
- }
- /* --------------------------------------------------------------------------
- Performance Management
- -------------------------------------------------------------------------- */
+ result = acpi_device_setup_files(device);
+ if(result)
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error creating sysfs interface for device %s\n", device->dev.bus_id));
- static int acpi_bus_get_perf_flags(struct acpi_device *device)
- {
- device->performance.state = ACPI_STATE_UNKNOWN;
+ device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
+ end:
+ spin_lock(&acpi_device_lock);
+ if (device->parent) {
+ list_del(&device->node);
+ list_del(&device->g_list);
+ } else
+ list_del(&device->g_list);
+ list_del(&device->wakeup_list);
+ spin_unlock(&acpi_device_lock);
+ return result;
}
- /* --------------------------------------------------------------------------
- Driver Management
- -------------------------------------------------------------------------- */
+ static void acpi_device_unregister(struct acpi_device *device, int type)
+ {
+ spin_lock(&acpi_device_lock);
+ if (device->parent) {
+ list_del(&device->node);
+ list_del(&device->g_list);
+ } else
+ list_del(&device->g_list);
- static LIST_HEAD(acpi_bus_drivers);
+ list_del(&device->wakeup_list);
+ spin_unlock(&acpi_device_lock);
- /**
- * acpi_bus_match - match device IDs to driver's supported IDs
- * @device: the device that we are trying to match to a driver
- * @driver: driver whose device id table is being checked
- *
- * Checks the device's hardware (_HID) or compatible (_CID) ids to see if it
- * matches the specified driver's criteria.
- */
- static int
- acpi_bus_match(struct acpi_device *device, struct acpi_driver *driver)
- {
- if (driver && driver->ops.match)
- return driver->ops.match(device, driver);
- return acpi_match_ids(device, driver->ids);
+ acpi_detach_data(device->handle, acpi_bus_data_handler);
+
+ acpi_device_remove_files(device);
+ device_unregister(&device->dev);
}
+ /* --------------------------------------------------------------------------
+ Driver Management
+ -------------------------------------------------------------------------- */
/**
* acpi_bus_driver_init - add a device to a driver
* @device: the device to add and initialize
* @driver: driver for the device
*
* Used to initialize a device via its device driver. Called whenever a
- * driver is bound to a device. Invokes the driver's add() and start() ops.
+ * driver is bound to a device. Invokes the driver's add() ops.
*/
static int
acpi_bus_driver_init(struct acpi_device *device, struct acpi_driver *driver)
return result;
}
- static void acpi_driver_attach(struct acpi_driver *drv)
+ /**
+ * acpi_bus_register_driver - register a driver with the ACPI bus
+ * @driver: driver being registered
+ *
+ * Registers a driver with the ACPI bus. Searches the namespace for all
+ * devices that match the driver's criteria and binds. Returns zero for
+ * success or a negative error status for failure.
+ */
+ int acpi_bus_register_driver(struct acpi_driver *driver)
{
- struct list_head *node, *next;
+ int ret;
+ if (acpi_disabled)
+ return -ENODEV;
+ driver->drv.name = driver->name;
+ driver->drv.bus = &acpi_bus_type;
+ driver->drv.owner = driver->owner;
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, g_list);
+ ret = driver_register(&driver->drv);
+ return ret;
+ }
- if (dev->driver || !dev->status.present)
- continue;
- spin_unlock(&acpi_device_lock);
-
- if (!acpi_bus_match(dev, drv)) {
- if (!acpi_bus_driver_init(dev, drv)) {
- acpi_start_single_object(dev);
- atomic_inc(&drv->references);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Found driver [%s] for device [%s]\n",
- drv->name, dev->pnp.bus_id));
- }
+ EXPORT_SYMBOL(acpi_bus_register_driver);
+
+ /**
+ * acpi_bus_unregister_driver - unregisters a driver with the APIC bus
+ * @driver: driver to unregister
+ *
+ * Unregisters a driver with the ACPI bus. Searches the namespace for all
+ * devices that match the driver's criteria and unbinds.
+ */
+ void acpi_bus_unregister_driver(struct acpi_driver *driver)
+ {
+ driver_unregister(&driver->drv);
+ }
+
+ EXPORT_SYMBOL(acpi_bus_unregister_driver);
+
+ /* --------------------------------------------------------------------------
+ Device Enumeration
+ -------------------------------------------------------------------------- */
+ acpi_status
+ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
+ {
+ acpi_status status;
+ acpi_handle tmp;
+ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *obj;
+
+ status = acpi_get_handle(handle, "_EJD", &tmp);
+ if (ACPI_FAILURE(status))
+ return status;
+
+ status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);
+ if (ACPI_SUCCESS(status)) {
+ obj = buffer.pointer;
+ status = acpi_get_handle(NULL, obj->string.pointer, ejd);
+ kfree(buffer.pointer);
+ }
+ return status;
+ }
+ EXPORT_SYMBOL_GPL(acpi_bus_get_ejd);
+
+ void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context)
+ {
+
+ /* TBD */
+
+ return;
+ }
+
+ int acpi_match_ids(struct acpi_device *device, char *ids)
+ {
+ if (device->flags.hardware_id)
+ if (strstr(ids, device->pnp.hardware_id))
+ return 0;
+
+ if (device->flags.compatible_ids) {
+ struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
+ int i;
+
+ /* compare multiple _CID entries against driver ids */
+ for (i = 0; i < cid_list->count; i++) {
+ if (strstr(ids, cid_list->id[i].value))
+ return 0;
+ }
+ }
+ return -ENOENT;
+ }
+
+ static int acpi_bus_get_perf_flags(struct acpi_device *device)
+ {
+ device->performance.state = ACPI_STATE_UNKNOWN;
+ return 0;
+ }
+
+ static acpi_status
+ acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
+ union acpi_object *package)
+ {
+ int i = 0;
+ union acpi_object *element = NULL;
+
+ if (!device || !package || (package->package.count < 2))
+ return AE_BAD_PARAMETER;
+
+ element = &(package->package.elements[0]);
+ if (!element)
+ return AE_BAD_PARAMETER;
+ if (element->type == ACPI_TYPE_PACKAGE) {
+ if ((element->package.count < 2) ||
+ (element->package.elements[0].type !=
+ ACPI_TYPE_LOCAL_REFERENCE)
+ || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
+ return AE_BAD_DATA;
+ device->wakeup.gpe_device =
+ element->package.elements[0].reference.handle;
+ device->wakeup.gpe_number =
+ (u32) element->package.elements[1].integer.value;
+ } else if (element->type == ACPI_TYPE_INTEGER) {
+ device->wakeup.gpe_number = element->integer.value;
+ } else
+ return AE_BAD_DATA;
+
+ element = &(package->package.elements[1]);
+ if (element->type != ACPI_TYPE_INTEGER) {
+ return AE_BAD_DATA;
+ }
+ device->wakeup.sleep_state = element->integer.value;
+
+ if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
+ return AE_NO_MEMORY;
+ }
+ device->wakeup.resources.count = package->package.count - 2;
+ for (i = 0; i < device->wakeup.resources.count; i++) {
+ element = &(package->package.elements[i + 2]);
+ if (element->type != ACPI_TYPE_ANY) {
+ return AE_BAD_DATA;
}
- spin_lock(&acpi_device_lock);
+
+ device->wakeup.resources.handles[i] = element->reference.handle;
}
- spin_unlock(&acpi_device_lock);
+
+ return AE_OK;
}
- static void acpi_driver_detach(struct acpi_driver *drv)
+ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
{
- struct list_head *node, *next;
+ acpi_status status = 0;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *package = NULL;
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, g_list);
-
- if (dev->driver == drv) {
- spin_unlock(&acpi_device_lock);
- if (drv->ops.remove)
- drv->ops.remove(dev, ACPI_BUS_REMOVAL_NORMAL);
- spin_lock(&acpi_device_lock);
- dev->driver = NULL;
- dev->driver_data = NULL;
- atomic_dec(&drv->references);
- }
+ /* _PRW */
+ status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
+ goto end;
}
- spin_unlock(&acpi_device_lock);
- }
- /**
- * acpi_bus_register_driver - register a driver with the ACPI bus
- * @driver: driver being registered
- *
- * Registers a driver with the ACPI bus. Searches the namespace for all
- * devices that match the driver's criteria and binds. Returns zero for
- * success or a negative error status for failure.
- */
- int acpi_bus_register_driver(struct acpi_driver *driver)
- {
+ package = (union acpi_object *)buffer.pointer;
+ status = acpi_bus_extract_wakeup_device_power_package(device, package);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
+ goto end;
+ }
- if (acpi_disabled)
- return -ENODEV;
+ kfree(buffer.pointer);
- spin_lock(&acpi_device_lock);
- list_add_tail(&driver->node, &acpi_bus_drivers);
- spin_unlock(&acpi_device_lock);
- acpi_driver_attach(driver);
+ device->wakeup.flags.valid = 1;
+ /* Power button, Lid switch always enable wakeup */
+ if (!acpi_match_ids(device, "PNP0C0D,PNP0C0C,PNP0C0E"))
+ device->wakeup.flags.run_wake = 1;
+ end:
+ if (ACPI_FAILURE(status))
+ device->flags.wake_capable = 0;
return 0;
}
- EXPORT_SYMBOL(acpi_bus_register_driver);
-
- /**
- * acpi_bus_unregister_driver - unregisters a driver with the APIC bus
- * @driver: driver to unregister
- *
- * Unregisters a driver with the ACPI bus. Searches the namespace for all
- * devices that match the driver's criteria and unbinds.
- */
- void acpi_bus_unregister_driver(struct acpi_driver *driver)
+ static int acpi_bus_get_power_flags(struct acpi_device *device)
{
- acpi_driver_detach(driver);
+ acpi_status status = 0;
+ acpi_handle handle = NULL;
+ u32 i = 0;
- if (!atomic_read(&driver->references)) {
- spin_lock(&acpi_device_lock);
- list_del_init(&driver->node);
- spin_unlock(&acpi_device_lock);
- }
- return;
- }
- EXPORT_SYMBOL(acpi_bus_unregister_driver);
+ /*
+ * Power Management Flags
+ */
+ status = acpi_get_handle(device->handle, "_PSC", &handle);
+ if (ACPI_SUCCESS(status))
+ device->power.flags.explicit_get = 1;
+ status = acpi_get_handle(device->handle, "_IRC", &handle);
+ if (ACPI_SUCCESS(status))
+ device->power.flags.inrush_current = 1;
- /**
- * acpi_bus_find_driver - check if there is a driver installed for the device
- * @device: device that we are trying to find a supporting driver for
- *
- * Parses the list of registered drivers looking for a driver applicable for
- * the specified device.
- */
- static int acpi_bus_find_driver(struct acpi_device *device)
- {
- int result = 0;
- struct list_head *node, *next;
+ /*
+ * Enumerate supported power management states
+ */
+ for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3; i++) {
+ struct acpi_device_power_state *ps = &device->power.states[i];
+ char object_name[5] = { '_', 'P', 'R', '0' + i, '\0' };
+ /* Evaluate "_PRx" to se if power resources are referenced */
+ acpi_evaluate_reference(device->handle, object_name, NULL,
+ &ps->resources);
+ if (ps->resources.count) {
+ device->power.flags.power_resources = 1;
+ ps->flags.valid = 1;
+ }
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_bus_drivers) {
- struct acpi_driver *driver =
- container_of(node, struct acpi_driver, node);
-
- atomic_inc(&driver->references);
- spin_unlock(&acpi_device_lock);
- if (!acpi_bus_match(device, driver)) {
- result = acpi_bus_driver_init(device, driver);
- if (!result)
- goto Done;
+ /* Evaluate "_PSx" to see if we can do explicit sets */
+ object_name[2] = 'S';
+ status = acpi_get_handle(device->handle, object_name, &handle);
+ if (ACPI_SUCCESS(status)) {
+ ps->flags.explicit_set = 1;
+ ps->flags.valid = 1;
}
- atomic_dec(&driver->references);
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
- Done:
- return result;
- }
+ /* State is valid if we have some power control */
+ if (ps->resources.count || ps->flags.explicit_set)
+ ps->flags.valid = 1;
- /* --------------------------------------------------------------------------
- Device Enumeration
- -------------------------------------------------------------------------- */
+ ps->power = -1; /* Unknown - driver assigned */
+ ps->latency = -1; /* Unknown - driver assigned */
+ }
- acpi_status
- acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
- {
- acpi_status status;
- acpi_handle tmp;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *obj;
+ /* Set defaults for D0 and D3 states (always valid) */
+ device->power.states[ACPI_STATE_D0].flags.valid = 1;
+ device->power.states[ACPI_STATE_D0].power = 100;
+ device->power.states[ACPI_STATE_D3].flags.valid = 1;
+ device->power.states[ACPI_STATE_D3].power = 0;
- status = acpi_get_handle(handle, "_EJD", &tmp);
- if (ACPI_FAILURE(status))
- return status;
+ /* TBD: System wake support and resource requirements. */
- status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);
- if (ACPI_SUCCESS(status)) {
- obj = buffer.pointer;
- status = acpi_get_handle(NULL, obj->string.pointer, ejd);
- kfree(buffer.pointer);
- }
- return status;
- }
- EXPORT_SYMBOL_GPL(acpi_bus_get_ejd);
+ device->power.state = ACPI_STATE_UNKNOWN;
+ return 0;
+ }
static int acpi_bus_get_flags(struct acpi_device *device)
{
}
}
+ static int
+ acpi_video_bus_match(struct acpi_device *device)
+ {
+ acpi_handle h_dummy1;
+ acpi_handle h_dummy2;
+ acpi_handle h_dummy3;
+
+
+ if (!device)
+ return -EINVAL;
+
+ /* Since there is no HID, CID for ACPI Video drivers, we have
+ * to check well known required nodes for each feature we support.
+ */
+
+ /* Does this device able to support video switching ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy1)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy2)))
+ return 0;
+
+ /* Does this device able to retrieve a video ROM ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy1)))
+ return 0;
+
+ /* Does this device able to configure which video head to be POSTed ? */
+ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy1)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy2)) &&
+ ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy3)))
+ return 0;
+
+ return -ENODEV;
+ }
+
static void acpi_device_set_id(struct acpi_device *device,
struct acpi_device *parent, acpi_handle handle,
int type)
device->pnp.bus_address = info->address;
device->flags.bus_address = 1;
}
+
+ if(!(info->valid & (ACPI_VALID_HID | ACPI_VALID_CID))){
+ status = acpi_video_bus_match(device);
+ if(ACPI_SUCCESS(status))
+ hid = ACPI_VIDEO_HID;
+ }
break;
case ACPI_BUS_TYPE_POWER:
hid = ACPI_POWER_HID;
static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
{
- int result = 0;
- struct acpi_driver *driver;
-
-
if (!dev)
return -EINVAL;
- driver = dev->driver;
-
- if ((driver) && (driver->ops.remove)) {
-
- if (driver->ops.stop) {
- result = driver->ops.stop(dev, ACPI_BUS_REMOVAL_EJECT);
- if (result)
- return result;
- }
-
- result = dev->driver->ops.remove(dev, ACPI_BUS_REMOVAL_EJECT);
- if (result) {
- return result;
- }
-
- atomic_dec(&dev->driver->references);
- dev->driver = NULL;
- acpi_driver_data(dev) = NULL;
- }
+ dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
+ device_release_driver(&dev->dev);
if (!rmdevice)
return 0;
+ /*
+ * unbind _ADR-Based Devices when hot removal
+ */
if (dev->flags.bus_address) {
if ((dev->parent) && (dev->parent->ops.unbind))
dev->parent->ops.unbind(dev);
}
-
acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
return 0;
static int
acpi_add_single_object(struct acpi_device **child,
- struct acpi_device *parent, acpi_handle handle, int type)
+ struct acpi_device *parent, acpi_handle handle, int type,
+ struct acpi_bus_ops *ops)
{
int result = 0;
struct acpi_device *device = NULL;
if (!child)
return -EINVAL;
- device = kmalloc(sizeof(struct acpi_device), GFP_KERNEL);
+ device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
if (!device) {
printk(KERN_ERR PREFIX "Memory allocation error\n");
return -ENOMEM;
}
- memset(device, 0, sizeof(struct acpi_device));
device->handle = handle;
device->parent = parent;
+ device->bus_ops = *ops; /* workround for not call .start */
+
acpi_device_get_busid(device, handle, type);
acpi_device_get_debug_info(device, handle, type);
- acpi_device_register(device, parent);
+ result = acpi_device_register(device, parent);
/*
- * Bind _ADR-Based Devices
- * -----------------------
- * If there's a a bus address (_ADR) then we utilize the parent's
- * 'bind' function (if exists) to bind the ACPI- and natively-
- * enumerated device representations.
+ * Bind _ADR-Based Devices when hot add
*/
if (device->flags.bus_address) {
if (device->parent && device->parent->ops.bind)
device->parent->ops.bind(device);
}
- /*
- * Locate & Attach Driver
- * ----------------------
- * If there's a hardware id (_HID) or compatible ids (_CID) we check
- * to see if there's a driver installed for this kind of device. Note
- * that drivers can install before or after a device is enumerated.
- *
- * TBD: Assumes LDM provides driver hot-plug capability.
- */
- acpi_bus_find_driver(device);
-
end:
if (!result)
*child = device;
if (ops->acpi_op_add)
status = acpi_add_single_object(&child, parent,
- chandle, type);
+ chandle, type, ops);
else
status = acpi_bus_get_device(chandle, &child);
if (ACPI_FAILURE(status))
continue;
- if (ops->acpi_op_start) {
+ if (ops->acpi_op_start && !(ops->acpi_op_add)) {
status = acpi_start_single_object(child);
if (ACPI_FAILURE(status))
continue;
int result;
struct acpi_bus_ops ops;
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
- result = acpi_add_single_object(child, parent, handle, type);
- if (!result) {
- memset(&ops, 0, sizeof(ops));
- ops.acpi_op_add = 1;
+ result = acpi_add_single_object(child, parent, handle, type, &ops);
+ if (!result)
result = acpi_bus_scan(*child, &ops);
- }
+
return result;
}
{
int result = 0;
struct acpi_device *device = NULL;
-
+ struct acpi_bus_ops ops;
if (!root)
return -ENODEV;
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ ops.acpi_op_start = 1;
+
/*
* Enumerate all fixed-feature devices.
*/
- if (acpi_fadt.pwr_button == 0) {
+ if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
result = acpi_add_single_object(&device, acpi_root,
NULL,
- ACPI_BUS_TYPE_POWER_BUTTON);
- if (!result)
- result = acpi_start_single_object(device);
+ ACPI_BUS_TYPE_POWER_BUTTON,
+ &ops);
}
- if (acpi_fadt.sleep_button == 0) {
+ if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
result = acpi_add_single_object(&device, acpi_root,
NULL,
- ACPI_BUS_TYPE_SLEEP_BUTTON);
- if (!result)
- result = acpi_start_single_object(device);
+ ACPI_BUS_TYPE_SLEEP_BUTTON,
+ &ops);
}
return result;
}
-
- static inline struct acpi_device * to_acpi_dev(struct device * dev)
- {
- return container_of(dev, struct acpi_device, dev);
- }
-
-
- static int root_suspend(struct acpi_device * acpi_dev, pm_message_t state)
- {
- struct acpi_device * dev, * next;
- int result;
-
- spin_lock(&acpi_device_lock);
- list_for_each_entry_safe_reverse(dev, next, &acpi_device_list, g_list) {
- if (dev->driver && dev->driver->ops.suspend) {
- spin_unlock(&acpi_device_lock);
- result = dev->driver->ops.suspend(dev, 0);
- if (result) {
- printk(KERN_ERR PREFIX "[%s - %s] Suspend failed: %d\n",
- acpi_device_name(dev),
- acpi_device_bid(dev), result);
- }
- spin_lock(&acpi_device_lock);
- }
- }
- spin_unlock(&acpi_device_lock);
- return 0;
- }
-
-
- static int acpi_device_suspend(struct device * dev, pm_message_t state)
- {
- struct acpi_device * acpi_dev = to_acpi_dev(dev);
-
- /*
- * For now, we should only register 1 generic device -
- * the ACPI root device - and from there, we walk the
- * tree of ACPI devices to suspend each one using the
- * ACPI driver methods.
- */
- if (acpi_dev->handle == ACPI_ROOT_OBJECT)
- root_suspend(acpi_dev, state);
- return 0;
- }
-
-
-
- static int root_resume(struct acpi_device * acpi_dev)
- {
- struct acpi_device * dev, * next;
- int result;
-
- spin_lock(&acpi_device_lock);
- list_for_each_entry_safe(dev, next, &acpi_device_list, g_list) {
- if (dev->driver && dev->driver->ops.resume) {
- spin_unlock(&acpi_device_lock);
- result = dev->driver->ops.resume(dev, 0);
- if (result) {
- printk(KERN_ERR PREFIX "[%s - %s] resume failed: %d\n",
- acpi_device_name(dev),
- acpi_device_bid(dev), result);
- }
- spin_lock(&acpi_device_lock);
- }
- }
- spin_unlock(&acpi_device_lock);
- return 0;
- }
-
-
- static int acpi_device_resume(struct device * dev)
- {
- struct acpi_device * acpi_dev = to_acpi_dev(dev);
-
- /*
- * For now, we should only register 1 generic device -
- * the ACPI root device - and from there, we walk the
- * tree of ACPI devices to resume each one using the
- * ACPI driver methods.
- */
- if (acpi_dev->handle == ACPI_ROOT_OBJECT)
- root_resume(acpi_dev);
- return 0;
- }
-
-
- static struct bus_type acpi_bus_type = {
- .name = "acpi",
- .suspend = acpi_device_suspend,
- .resume = acpi_device_resume,
- };
-
-
-
static int __init acpi_scan_init(void)
{
int result;
if (acpi_disabled)
return 0;
- result = kset_register(&acpi_namespace_kset);
- if (result < 0)
- printk(KERN_ERR PREFIX "kset_register error: %d\n", result);
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ ops.acpi_op_start = 1;
result = bus_register(&acpi_bus_type);
if (result) {
* Create the root device in the bus's device tree
*/
result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT,
- ACPI_BUS_TYPE_SYSTEM);
+ ACPI_BUS_TYPE_SYSTEM, &ops);
if (result)
goto Done;
- result = acpi_start_single_object(acpi_root);
- if (result)
- goto Done;
-
- acpi_root->dev.bus = &acpi_bus_type;
- snprintf(acpi_root->dev.bus_id, BUS_ID_SIZE, "%s", acpi_bus_type.name);
- result = device_register(&acpi_root->dev);
- if (result) {
- /* We don't want to quit even if we failed to add suspend/resume */
- printk(KERN_ERR PREFIX "Could not register device\n");
- }
-
/*
* Enumerate devices in the ACPI namespace.
*/
result = acpi_bus_scan_fixed(acpi_root);
- if (!result) {
- memset(&ops, 0, sizeof(ops));
- ops.acpi_op_add = 1;
- ops.acpi_op_start = 1;
+ if (!result)
result = acpi_bus_scan(acpi_root, &ops);
- }
if (result)
acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("acpi_system")
+ #ifdef MODULE_PARAM_PREFIX
+ #undef MODULE_PARAM_PREFIX
+ #endif
+ #define MODULE_PARAM_PREFIX "acpi."
+
#define ACPI_SYSTEM_CLASS "system"
#define ACPI_SYSTEM_DRIVER_NAME "ACPI System Driver"
#define ACPI_SYSTEM_DEVICE_NAME "System"
#define ACPI_SYSTEM_FILE_EVENT "event"
#define ACPI_SYSTEM_FILE_DSDT "dsdt"
#define ACPI_SYSTEM_FILE_FADT "fadt"
-extern struct fadt_descriptor acpi_fadt;
+ /*
+ * Make ACPICA version work as module param
+ */
+ static int param_get_acpica_version(char *buffer, struct kernel_param *kp) {
+ int result;
+
+ result = sprintf(buffer, "%x", ACPI_CA_VERSION);
+
+ return result;
+ }
+
+ module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
+
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
+ #ifdef CONFIG_ACPI_PROCFS
static int acpi_system_read_info(struct seq_file *seq, void *offset)
{
.llseek = seq_lseek,
.release = single_release,
};
+ #endif
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
loff_t *);
char __user * buffer, size_t count, loff_t * ppos)
{
acpi_status status = AE_OK;
- struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_table_header *dsdt = NULL;
ssize_t res;
- status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
+ status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
if (ACPI_FAILURE(status))
return -ENODEV;
res = simple_read_from_buffer(buffer, count, ppos,
- dsdt.pointer, dsdt.length);
- kfree(dsdt.pointer);
+ dsdt, dsdt->length);
return res;
}
char __user * buffer, size_t count, loff_t * ppos)
{
acpi_status status = AE_OK;
- struct acpi_buffer fadt = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_table_header *fadt = NULL;
ssize_t res;
- status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt);
+ status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
if (ACPI_FAILURE(status))
return -ENODEV;
res = simple_read_from_buffer(buffer, count, ppos,
- fadt.pointer, fadt.length);
- kfree(fadt.pointer);
+ fadt, fadt->length);
return res;
}
if (acpi_disabled)
return 0;
+ #ifdef CONFIG_ACPI_PROCFS
/* 'info' [R] */
name = ACPI_SYSTEM_FILE_INFO;
entry = create_proc_entry(name, S_IRUGO, acpi_root_dir);
else {
entry->proc_fops = &acpi_system_info_ops;
}
+ #endif
/* 'dsdt' [R] */
name = ACPI_SYSTEM_FILE_DSDT;
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
+ #ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
+ #endif
error = -EFAULT;
goto Done;
static int acpi_thermal_add(struct acpi_device *device);
static int acpi_thermal_remove(struct acpi_device *device, int type);
- static int acpi_thermal_resume(struct acpi_device *device, int state);
+ static int acpi_thermal_resume(struct acpi_device *device);
static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
static void acpi_thermal_check(void *data)
{
int result = 0;
- struct acpi_thermal *tz = (struct acpi_thermal *)data;
+ struct acpi_thermal *tz = data;
unsigned long sleep_time = 0;
int i = 0;
struct acpi_thermal_state state;
static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = seq->private;
if (!tz)
static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset)
{
int result = 0;
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = seq->private;
if (!tz)
static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = seq->private;
int i = 0;
int j = 0;
const char __user * buffer,
size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_thermal *tz = m->private;
char *limit_string;
int num, critical, hot, passive;
int i = 0;
- limit_string = kmalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL);
+ limit_string = kzalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL);
if (!limit_string)
return -ENOMEM;
- memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
-
active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
if (!active) {
kfree(limit_string);
static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = seq->private;
if (!tz)
const char __user * buffer,
size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_thermal *tz = m->private;
int result = 0;
char mode_string[12] = { '\0' };
static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)seq->private;
+ struct acpi_thermal *tz = seq->private;
if (!tz)
const char __user * buffer,
size_t count, loff_t * ppos)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_thermal *tz = m->private;
int result = 0;
char polling_string[12] = { '\0' };
int seconds = 0;
static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_thermal *tz = (struct acpi_thermal *)data;
+ struct acpi_thermal *tz = data;
struct acpi_device *device = NULL;
if (!device)
return -EINVAL;
- tz = kmalloc(sizeof(struct acpi_thermal), GFP_KERNEL);
+ tz = kzalloc(sizeof(struct acpi_thermal), GFP_KERNEL);
if (!tz)
return -ENOMEM;
- memset(tz, 0, sizeof(struct acpi_thermal));
tz->device = device;
strcpy(tz->name, device->pnp.bus_id);
if (!device || !acpi_driver_data(device))
return -EINVAL;
- tz = (struct acpi_thermal *)acpi_driver_data(device);
+ tz = acpi_driver_data(device);
/* avoid timer adding new defer task */
tz->zombie = 1;
return 0;
}
- static int acpi_thermal_resume(struct acpi_device *device, int state)
+ static int acpi_thermal_resume(struct acpi_device *device)
{
struct acpi_thermal *tz = NULL;
int i;
if (!device || !acpi_driver_data(device))
return -EINVAL;
- tz = (struct acpi_thermal *)acpi_driver_data(device);
+ tz = acpi_driver_data(device);
acpi_thermal_get_temperature(tz);
*
* Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
* Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
+ * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/backlight.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
#define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83
#define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84
-#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x82
-#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x83
-#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x84
-#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x85
-#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x86
+#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85
+#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
+#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
+#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88
+#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89
#define ACPI_VIDEO_HEAD_INVALID (~0u - 1)
#define ACPI_VIDEO_HEAD_END (~0u)
+#define MAX_NAME_LEN 20
+
+#define ACPI_VIDEO_DISPLAY_CRT 1
+#define ACPI_VIDEO_DISPLAY_TV 2
+#define ACPI_VIDEO_DISPLAY_DVI 3
+#define ACPI_VIDEO_DISPLAY_LCD 4
#define _COMPONENT ACPI_VIDEO_COMPONENT
ACPI_MODULE_NAME("acpi_video")
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device, int type);
- static int acpi_video_bus_match(struct acpi_device *device,
- struct acpi_driver *driver);
static struct acpi_driver acpi_video_bus = {
.name = ACPI_VIDEO_DRIVER_NAME,
.class = ACPI_VIDEO_CLASS,
+ .ids = ACPI_VIDEO_HID,
.ops = {
.add = acpi_video_bus_add,
.remove = acpi_video_bus_remove,
- .match = acpi_video_bus_match,
},
};
u8 crt:1;
u8 lcd:1;
u8 tvout:1;
+ u8 dvi:1;
u8 bios:1;
u8 unknown:1;
- u8 reserved:3;
+ u8 reserved:2;
};
struct acpi_video_device_cap {
u8 _ADR:1; /*Return the unique ID */
u8 _BCL:1; /*Query list of brightness control levels supported */
u8 _BCM:1; /*Set the brightness level */
+ u8 _BQC:1; /* Get current brightness level */
u8 _DDC:1; /*Return the EDID for this device */
u8 _DCS:1; /*Return status of output device */
u8 _DGS:1; /*Query graphics state */
u8 _DSS:1; /*Device state set */
- u8 _reserved:1;
};
struct acpi_video_device_brightness {
struct acpi_video_bus *video;
struct acpi_device *dev;
struct acpi_video_device_brightness *brightness;
+ struct backlight_device *backlight;
+ struct backlight_properties *data;
};
/* bus */
struct acpi_video_device *device);
static int acpi_video_device_enumerate(struct acpi_video_bus *video);
static int acpi_video_switch_output(struct acpi_video_bus *video, int event);
+static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
+ int level);
+static int acpi_video_device_lcd_get_level_current(
+ struct acpi_video_device *device,
+ unsigned long *level);
static int acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event);
static void acpi_video_switch_brightness(struct acpi_video_device *device,
int event);
+/*backlight device sysfs support*/
+static int acpi_video_get_brightness(struct backlight_device *bd)
+{
+ unsigned long cur_level;
+ struct acpi_video_device *vd =
+ (struct acpi_video_device *)class_get_devdata(&bd->class_dev);
+ acpi_video_device_lcd_get_level_current(vd, &cur_level);
+ return (int) cur_level;
+}
+
+static int acpi_video_set_brightness(struct backlight_device *bd)
+{
+ int request_level = bd->props->brightness;
+ struct acpi_video_device *vd =
+ (struct acpi_video_device *)class_get_devdata(&bd->class_dev);
+ acpi_video_device_lcd_set_level(vd, request_level);
+ return 0;
+}
+
/* --------------------------------------------------------------------------
Video Management
-------------------------------------------------------------------------- */
if (ACPI_FAILURE(status))
return -ENODEV;
- obj = (union acpi_object *)buffer.pointer;
+ obj = buffer.pointer;
if (obj && obj->type == ACPI_TYPE_BUFFER)
*edid = obj;
acpi_integer status;
acpi_handle h_dummy1;
int i;
+ u32 max_level = 0;
union acpi_object *obj = NULL;
struct acpi_video_device_brightness *br = NULL;
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) {
device->cap._BCM = 1;
}
+ if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1)))
+ device->cap._BQC = 1;
if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) {
device->cap._DDC = 1;
}
int count = 0;
union acpi_object *o;
- br = kmalloc(sizeof(*br), GFP_KERNEL);
+ br = kzalloc(sizeof(*br), GFP_KERNEL);
if (!br) {
printk(KERN_ERR "can't allocate memory\n");
} else {
- memset(br, 0, sizeof(*br));
br->levels = kmalloc(obj->package.count *
sizeof *(br->levels), GFP_KERNEL);
if (!br->levels)
continue;
}
br->levels[count] = (u32) o->integer.value;
+ if (br->levels[count] > max_level)
+ max_level = br->levels[count];
count++;
}
out:
kfree(obj);
+ if (device->cap._BCL && device->cap._BCM && device->cap._BQC){
+ unsigned long tmp;
+ static int count = 0;
+ char *name;
+ struct backlight_properties *acpi_video_data;
+
+ name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
+ if (!name)
+ return;
+
+ acpi_video_data = kzalloc(
+ sizeof(struct backlight_properties),
+ GFP_KERNEL);
+ if (!acpi_video_data){
+ kfree(name);
+ return;
+ }
+ acpi_video_data->owner = THIS_MODULE;
+ acpi_video_data->get_brightness =
+ acpi_video_get_brightness;
+ acpi_video_data->update_status =
+ acpi_video_set_brightness;
+ sprintf(name, "acpi_video%d", count++);
+ device->data = acpi_video_data;
+ acpi_video_data->max_brightness = max_level;
+ acpi_video_device_lcd_get_level_current(device, &tmp);
+ acpi_video_data->brightness = (int)tmp;
+ device->backlight = backlight_device_register(name,
+ NULL, device, acpi_video_data);
+ kfree(name);
+ }
return;
}
static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_device *dev =
- (struct acpi_video_device *)seq->private;
+ struct acpi_video_device *dev = seq->private;
if (!dev)
seq_printf(seq, "LCD\n");
else if (dev->flags.tvout)
seq_printf(seq, "TVOUT\n");
+ else if (dev->flags.dvi)
+ seq_printf(seq, "DVI\n");
else
seq_printf(seq, "UNKNOWN\n");
static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset)
{
int status;
- struct acpi_video_device *dev =
- (struct acpi_video_device *)seq->private;
+ struct acpi_video_device *dev = seq->private;
unsigned long state;
size_t count, loff_t * data)
{
int status;
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_video_device *dev = (struct acpi_video_device *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_video_device *dev = m->private;
char str[12] = { 0 };
u32 state = 0;
static int
acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_device *dev =
- (struct acpi_video_device *)seq->private;
+ struct acpi_video_device *dev = seq->private;
int i;
const char __user * buffer,
size_t count, loff_t * data)
{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_video_device *dev = (struct acpi_video_device *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_video_device *dev = m->private;
char str[4] = { 0 };
unsigned int level = 0;
int i;
static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_device *dev =
- (struct acpi_video_device *)seq->private;
+ struct acpi_video_device *dev = seq->private;
int status;
int i;
union acpi_object *edid = NULL;
if (!device)
return -ENODEV;
- vid_dev = (struct acpi_video_device *)acpi_driver_data(device);
+ vid_dev = acpi_driver_data(device);
if (!vid_dev)
return -ENODEV;
{
struct acpi_video_device *vid_dev;
- vid_dev = (struct acpi_video_device *)acpi_driver_data(device);
+ vid_dev = acpi_driver_data(device);
if (!vid_dev || !vid_dev->video || !vid_dev->video->dir)
return -ENODEV;
/* video bus */
static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
+ struct acpi_video_bus *video = seq->private;
if (!video)
static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
+ struct acpi_video_bus *video = seq->private;
if (!video)
static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
+ struct acpi_video_bus *video = seq->private;
unsigned long options;
int status;
static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
+ struct acpi_video_bus *video = seq->private;
int status;
unsigned long id;
static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)seq->private;
+ struct acpi_video_bus *video = seq->private;
seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting);
size_t count, loff_t * data)
{
int status;
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_video_bus *video = (struct acpi_video_bus *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_video_bus *video = m->private;
char str[12] = { 0 };
unsigned long opt, options;
size_t count, loff_t * data)
{
int status;
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_video_bus *video = (struct acpi_video_bus *)m->private;
+ struct seq_file *m = file->private_data;
+ struct acpi_video_bus *video = m->private;
char str[12] = { 0 };
unsigned long opt;
struct acpi_video_bus *video;
- video = (struct acpi_video_bus *)acpi_driver_data(device);
+ video = acpi_driver_data(device);
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
struct acpi_video_bus *video;
- video = (struct acpi_video_bus *)acpi_driver_data(device);
+ video = acpi_driver_data(device);
if (acpi_device_dir(device)) {
remove_proc_entry("info", acpi_device_dir(device));
-------------------------------------------------------------------------- */
/* device interface */
+static struct acpi_video_device_attrib*
+acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id)
+{
+ int count;
+
+ for(count = 0; count < video->attached_count; count++)
+ if((video->attached_array[count].value.int_val & 0xffff) == device_id)
+ return &(video->attached_array[count].value.attrib);
+ return NULL;
+}
static int
acpi_video_bus_get_one_device(struct acpi_device *device,
unsigned long device_id;
int status;
struct acpi_video_device *data;
-
+ struct acpi_video_device_attrib* attribute;
if (!device || !video)
return -EINVAL;
acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
if (ACPI_SUCCESS(status)) {
- data = kmalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
+ data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
if (!data)
return -ENOMEM;
- memset(data, 0, sizeof(struct acpi_video_device));
-
strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
acpi_driver_data(device) = data;
data->video = video;
data->dev = device;
- switch (device_id & 0xffff) {
- case 0x0100:
- data->flags.crt = 1;
- break;
- case 0x0400:
- data->flags.lcd = 1;
- break;
- case 0x0200:
- data->flags.tvout = 1;
- break;
- default:
+ attribute = acpi_video_get_device_attr(video, device_id);
+
+ if((attribute != NULL) && attribute->device_id_scheme) {
+ switch (attribute->display_type) {
+ case ACPI_VIDEO_DISPLAY_CRT:
+ data->flags.crt = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_TV:
+ data->flags.tvout = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_DVI:
+ data->flags.dvi = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_LCD:
+ data->flags.lcd = 1;
+ break;
+ default:
+ data->flags.unknown = 1;
+ break;
+ }
+ if(attribute->bios_can_detect)
+ data->flags.bios = 1;
+ } else
data->flags.unknown = 1;
- break;
- }
acpi_video_device_bind(video, data);
acpi_video_device_find_cap(data);
return status;
}
- dod = (union acpi_object *)buffer.pointer;
+ dod = buffer.pointer;
if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) {
ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data"));
status = -EFAULT;
count = 0;
for (i = 0; i < dod->package.count; i++) {
- obj = (union acpi_object *)&dod->package.elements[i];
+ obj = &dod->package.elements[i];
if (obj->type != ACPI_TYPE_INTEGER) {
printk(KERN_ERR PREFIX "Invalid _DOD data\n");
acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event)
{
- /*Fix me */
- return level_current;
+ int min, max, min_above, max_below, i, l;
+ max = max_below = 0;
+ min = min_above = 255;
+ for (i = 0; i < device->brightness->count; i++) {
+ l = device->brightness->levels[i];
+ if (l < min)
+ min = l;
+ if (l > max)
+ max = l;
+ if (l < min_above && l > level_current)
+ min_above = l;
+ if (l > max_below && l < level_current)
+ max_below = l;
+ }
+
+ switch (event) {
+ case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:
+ return (level_current < max) ? min_above : min;
+ case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:
+ return (level_current < max) ? min_above : max;
+ case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:
+ return (level_current > min) ? max_below : min;
+ case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS:
+ case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:
+ return 0;
+ default:
+ return level_current;
+ }
}
static void
status = acpi_remove_notify_handler(device->dev->handle,
ACPI_DEVICE_NOTIFY,
acpi_video_device_notify);
-
+ if (device->backlight){
+ backlight_device_unregister(device->backlight);
+ kfree(device->data);
+ }
return 0;
}
static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_video_bus *video = (struct acpi_video_bus *)data;
+ struct acpi_video_bus *video = data;
struct acpi_device *device = NULL;
printk("video bus notify\n");
static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_video_device *video_device =
- (struct acpi_video_device *)data;
+ struct acpi_video_device *video_device = data;
struct acpi_device *device = NULL;
-
- printk("video device notify\n");
if (!video_device)
return;
if (!device)
return -EINVAL;
- video = kmalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
+ video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
if (!video)
return -ENOMEM;
- memset(video, 0, sizeof(struct acpi_video_bus));
video->device = device;
strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
if (!device || !acpi_driver_data(device))
return -EINVAL;
- video = (struct acpi_video_bus *)acpi_driver_data(device);
+ video = acpi_driver_data(device);
acpi_video_bus_stop_devices(video);
return 0;
}
- static int
- acpi_video_bus_match(struct acpi_device *device, struct acpi_driver *driver)
- {
- acpi_handle h_dummy1;
- acpi_handle h_dummy2;
- acpi_handle h_dummy3;
-
-
- if (!device || !driver)
- return -EINVAL;
-
- /* Since there is no HID, CID for ACPI Video drivers, we have
- * to check well known required nodes for each feature we support.
- */
-
- /* Does this device able to support video switching ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy1)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy2)))
- return 0;
-
- /* Does this device able to retrieve a video ROM ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy1)))
- return 0;
-
- /* Does this device able to configure which video head to be POSTed ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy1)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy2)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy3)))
- return 0;
-
- return -ENODEV;
- }
-
static int __init acpi_video_init(void)
{
int result = 0;
#define ACPI_BUS_FILE_ROOT "acpi"
extern struct proc_dir_entry *acpi_root_dir;
-extern struct fadt_descriptor acpi_fadt;
enum acpi_bus_removal_type {
ACPI_BUS_REMOVAL_NORMAL = 0,
typedef int (*acpi_op_lock) (struct acpi_device * device, int type);
typedef int (*acpi_op_start) (struct acpi_device * device);
typedef int (*acpi_op_stop) (struct acpi_device * device, int type);
- typedef int (*acpi_op_suspend) (struct acpi_device * device, int state);
- typedef int (*acpi_op_resume) (struct acpi_device * device, int state);
+ typedef int (*acpi_op_suspend) (struct acpi_device * device, pm_message_t state);
+ typedef int (*acpi_op_resume) (struct acpi_device * device);
typedef int (*acpi_op_scan) (struct acpi_device * device);
typedef int (*acpi_op_bind) (struct acpi_device * device);
typedef int (*acpi_op_unbind) (struct acpi_device * device);
- typedef int (*acpi_op_match) (struct acpi_device * device,
- struct acpi_driver * driver);
+ typedef int (*acpi_op_shutdown) (struct acpi_device * device);
struct acpi_bus_ops {
u32 acpi_op_add:1;
u32 acpi_op_scan:1;
u32 acpi_op_bind:1;
u32 acpi_op_unbind:1;
- u32 acpi_op_match:1;
+ u32 acpi_op_shutdown:1;
u32 reserved:21;
};
acpi_op_scan scan;
acpi_op_bind bind;
acpi_op_unbind unbind;
- acpi_op_match match;
+ acpi_op_shutdown shutdown;
};
struct acpi_driver {
- struct list_head node;
char name[80];
char class[80];
- atomic_t references;
char *ids; /* Supported Hardware IDs */
struct acpi_device_ops ops;
+ struct device_driver drv;
+ struct module *owner;
};
/*
typedef char acpi_bus_id[5];
typedef unsigned long acpi_bus_address;
- typedef char acpi_hardware_id[9];
+ typedef char acpi_hardware_id[15];
typedef char acpi_unique_id[9];
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];
struct acpi_device_ops ops;
struct acpi_driver *driver;
void *driver_data;
- struct kobject kobj;
struct device dev;
+ struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
+ enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
};
#define acpi_driver_data(d) ((d)->driver_data)
+ #define to_acpi_device(d) container_of(d, struct acpi_device, dev)
+ #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
/*
* Events
/* _HID definitions */
- #define ACPI_POWER_HID "ACPI_PWR"
+ #define ACPI_POWER_HID "power_resource"
-#define ACPI_PROCESSOR_HID "processor"
+#define ACPI_PROCESSOR_HID "ACPI0007"
- #define ACPI_SYSTEM_HID "ACPI_SYS"
- #define ACPI_THERMAL_HID "ACPI_THM"
- #define ACPI_BUTTON_HID_POWERF "ACPI_FPB"
- #define ACPI_BUTTON_HID_SLEEPF "ACPI_FSB"
-
+ #define ACPI_SYSTEM_HID "acpi_system"
+ #define ACPI_THERMAL_HID "thermal"
+ #define ACPI_BUTTON_HID_POWERF "button_power"
+ #define ACPI_BUTTON_HID_SLEEPF "button_sleep"
+ #define ACPI_VIDEO_HID "video"
+ #define ACPI_BAY_HID "bay"
/* --------------------------------------------------------------------------
PCI
-------------------------------------------------------------------------- */
git.openpandora.org / pandora-kernel.git / commitdiff