drivers/acpi/internal.h - arm/linux - Git at Google


            
            /*

            
             * acpi/internal.h

            
             * For use by Linux/ACPI infrastructure, not drivers

            
             *

            
             * Copyright (c) 2009, Intel Corporation.

            
             *

            
             * This program is free software; you can redistribute it and/or modify it

            
             * under the terms and conditions of the GNU General Public License,

            
             * version 2, as published by the Free Software Foundation.

            
             *

            
             * This program is distributed in the hope it will be useful, but WITHOUT

            
             * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

            
             * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

            
             * more details.

            
             *

            
             */


            #ifndef _ACPI_INTERNAL_H_

            
            #define _ACPI_INTERNAL_H_


            #define PREFIX "ACPI: "


            int early_acpi_osi_init(void);

            
            int acpi_osi_init(void);

            
            acpi_status acpi_os_initialize1(void);

            
            void init_acpi_device_notify(void);

            
            int acpi_scan_init(void);

            
            void acpi_pci_root_init(void);

            
            void acpi_pci_link_init(void);

            
            void acpi_processor_init(void);

            
            void acpi_platform_init(void);

            
            void acpi_pnp_init(void);

            
            void acpi_int340x_thermal_init(void);

            
            #ifdef CONFIG_ARM_AMBA

            
            void acpi_amba_init(void);

            
            #else

            
            static inline void acpi_amba_init(void) {}

            
            #endif

            
            int acpi_sysfs_init(void);

            
            void acpi_container_init(void);

            
            void acpi_memory_hotplug_init(void);

            
            #ifdef	CONFIG_ACPI_HOTPLUG_IOAPIC

            
            int acpi_ioapic_remove(struct acpi_pci_root *root);

            
            #else

            
            static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }

            
            #endif

            
            #ifdef CONFIG_ACPI_DOCK

            
            void register_dock_dependent_device(struct acpi_device *adev,

            
            				    acpi_handle dshandle);

            
            int dock_notify(struct acpi_device *adev, u32 event);

            
            void acpi_dock_add(struct acpi_device *adev);

            
            #else

            
            static inline void register_dock_dependent_device(struct acpi_device *adev,

            
            						  acpi_handle dshandle) {}

            
            static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }

            
            static inline void acpi_dock_add(struct acpi_device *adev) {}

            
            #endif

            
            #ifdef CONFIG_X86

            
            void acpi_cmos_rtc_init(void);

            
            #else

            
            static inline void acpi_cmos_rtc_init(void) {}

            
            #endif

            
            int acpi_rev_override_setup(char *str);


            extern bool acpi_force_hot_remove;


            void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,

            
            				    const char *name);

            
            int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,

            
            				       const char *hotplug_profile_name);

            
            void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);


            #ifdef CONFIG_DEBUG_FS

            
            extern struct dentry *acpi_debugfs_dir;

            
            void acpi_debugfs_init(void);

            
            #else

            
            static inline void acpi_debugfs_init(void) { return; }

            
            #endif

            
            void acpi_lpss_init(void);


            void acpi_apd_init(void);


            acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);

            
            bool acpi_queue_hotplug_work(struct work_struct *work);

            
            void acpi_device_hotplug(struct acpi_device *adev, u32 src);

            
            bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);


            acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);

            
            void acpi_scan_table_handler(u32 event, void *table, void *context);


            /* --------------------------------------------------------------------------

            
                                 Device Node Initialization / Removal

            
               -------------------------------------------------------------------------- */

            
            #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \

            
            			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)


            extern struct list_head acpi_bus_id_list;


            struct acpi_device_bus_id {

            
            	char bus_id[15];

            
            	unsigned int instance_no;

            
            	struct list_head node;

            
            };


            int acpi_device_add(struct acpi_device *device,

            
            		    void (*release)(struct device *));

            
            void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,

            
            			     int type, unsigned long long sta);

            
            int acpi_device_setup_files(struct acpi_device *dev);

            
            void acpi_device_remove_files(struct acpi_device *dev);

            
            void acpi_device_add_finalize(struct acpi_device *device);

            
            void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);

            
            bool acpi_device_is_present(struct acpi_device *adev);

            
            bool acpi_device_is_battery(struct acpi_device *adev);

            
            bool acpi_device_is_first_physical_node(struct acpi_device *adev,

            
            					const struct device *dev);


            /* --------------------------------------------------------------------------

            
                                 Device Matching and Notification

            
               -------------------------------------------------------------------------- */

            
            struct acpi_device *acpi_companion_match(const struct device *dev);

            
            int __acpi_device_uevent_modalias(struct acpi_device *adev,

            
            				  struct kobj_uevent_env *env);


            /* --------------------------------------------------------------------------

            
                                              Power Resource

            
               -------------------------------------------------------------------------- */

            
            int acpi_power_init(void);

            
            void acpi_power_resources_list_free(struct list_head *list);

            
            int acpi_extract_power_resources(union acpi_object *package, unsigned int start,

            
            				 struct list_head *list);

            
            int acpi_add_power_resource(acpi_handle handle);

            
            void acpi_power_add_remove_device(struct acpi_device *adev, bool add);

            
            int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);

            
            int acpi_device_sleep_wake(struct acpi_device *dev,

            
                                       int enable, int sleep_state, int dev_state);

            
            int acpi_power_get_inferred_state(struct acpi_device *device, int *state);

            
            int acpi_power_on_resources(struct acpi_device *device, int state);

            
            int acpi_power_transition(struct acpi_device *device, int state);


            int acpi_wakeup_device_init(void);


            #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC

            
            void acpi_early_processor_set_pdc(void);

            
            #else

            
            static inline void acpi_early_processor_set_pdc(void) {}

            
            #endif


            #ifdef CONFIG_X86

            
            void acpi_early_processor_osc(void);

            
            #else

            
            static inline void acpi_early_processor_osc(void) {}

            
            #endif


            /* --------------------------------------------------------------------------

            
                                              Embedded Controller

            
               -------------------------------------------------------------------------- */

            
            struct acpi_ec {

            
            	acpi_handle handle;

            
            	unsigned long gpe;

            
            	unsigned long command_addr;

            
            	unsigned long data_addr;

            
            	bool global_lock;

            
            	unsigned long flags;

            
            	unsigned long reference_count;

            
            	struct mutex mutex;

            
            	wait_queue_head_t wait;

            
            	struct list_head list;

            
            	struct transaction *curr;

            
            	spinlock_t lock;

            
            	struct work_struct work;

            
            	unsigned long timestamp;

            
            	unsigned long nr_pending_queries;

            
            	bool saved_busy_polling;

            
            	unsigned int saved_polling_guard;

            
            };


            extern struct acpi_ec *first_ec;


            /* If we find an EC via the ECDT, we need to keep a ptr to its context */

            
            /* External interfaces use first EC only, so remember */

            
            typedef int (*acpi_ec_query_func) (void *data);


            int acpi_ec_init(void);

            
            int acpi_ec_ecdt_probe(void);

            
            int acpi_ec_dsdt_probe(void);

            
            int acpi_ec_ecdt_start(void);

            
            void acpi_ec_block_transactions(void);

            
            void acpi_ec_unblock_transactions(void);

            
            int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,

            
            			      acpi_handle handle, acpi_ec_query_func func,

            
            			      void *data);

            
            void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);


            /*--------------------------------------------------------------------------

            
                                              Suspend/Resume

            
              -------------------------------------------------------------------------- */

            
            #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT

            
            extern int acpi_sleep_init(void);

            
            #else

            
            static inline int acpi_sleep_init(void) { return -ENXIO; }

            
            #endif


            #ifdef CONFIG_ACPI_SLEEP

            
            void acpi_sleep_proc_init(void);

            
            int suspend_nvs_alloc(void);

            
            void suspend_nvs_free(void);

            
            int suspend_nvs_save(void);

            
            void suspend_nvs_restore(void);

            
            #else

            
            static inline void acpi_sleep_proc_init(void) {}

            
            static inline int suspend_nvs_alloc(void) { return 0; }

            
            static inline void suspend_nvs_free(void) {}

            
            static inline int suspend_nvs_save(void) { return 0; }

            
            static inline void suspend_nvs_restore(void) {}

            
            #endif


            /*--------------------------------------------------------------------------

            
            				Device properties

            
              -------------------------------------------------------------------------- */

            
            #define ACPI_DT_NAMESPACE_HID	"PRP0001"


            void acpi_init_properties(struct acpi_device *adev);

            
            void acpi_free_properties(struct acpi_device *adev);


            /*--------------------------------------------------------------------------

            
            				Watchdog

            
              -------------------------------------------------------------------------- */


            #ifdef CONFIG_ACPI_WATCHDOG

            
            void acpi_watchdog_init(void);

            
            #else

            
            static inline void acpi_watchdog_init(void) {}

            
            #endif


            #endif /* _ACPI_INTERNAL_H_ */
	/*
	* acpi/internal.h
	* For use by Linux/ACPI infrastructure, not drivers
	*
	* Copyright (c) 2009, Intel Corporation.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	*/

	#ifndef _ACPI_INTERNAL_H_
	#define _ACPI_INTERNAL_H_

	#define PREFIX "ACPI: "

	int early_acpi_osi_init(void);
	int acpi_osi_init(void);
	acpi_status acpi_os_initialize1(void);
	void init_acpi_device_notify(void);
	int acpi_scan_init(void);
	void acpi_pci_root_init(void);
	void acpi_pci_link_init(void);
	void acpi_processor_init(void);
	void acpi_platform_init(void);
	void acpi_pnp_init(void);
	void acpi_int340x_thermal_init(void);
	#ifdef CONFIG_ARM_AMBA
	void acpi_amba_init(void);
	#else
	static inline void acpi_amba_init(void) {}
	#endif
	int acpi_sysfs_init(void);
	void acpi_container_init(void);
	void acpi_memory_hotplug_init(void);
	#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
	int acpi_ioapic_remove(struct acpi_pci_root *root);
	#else
	static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
	#endif
	#ifdef CONFIG_ACPI_DOCK
	void register_dock_dependent_device(struct acpi_device *adev,
	acpi_handle dshandle);
	int dock_notify(struct acpi_device *adev, u32 event);
	void acpi_dock_add(struct acpi_device *adev);
	#else
	static inline void register_dock_dependent_device(struct acpi_device *adev,
	acpi_handle dshandle) {}
	static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
	static inline void acpi_dock_add(struct acpi_device *adev) {}
	#endif
	#ifdef CONFIG_X86
	void acpi_cmos_rtc_init(void);
	#else
	static inline void acpi_cmos_rtc_init(void) {}
	#endif
	int acpi_rev_override_setup(char *str);

	extern bool acpi_force_hot_remove;

	void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
	const char *name);
	int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
	const char *hotplug_profile_name);
	void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);

	#ifdef CONFIG_DEBUG_FS
	extern struct dentry *acpi_debugfs_dir;
	void acpi_debugfs_init(void);
	#else
	static inline void acpi_debugfs_init(void) { return; }
	#endif
	void acpi_lpss_init(void);

	void acpi_apd_init(void);

	acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
	bool acpi_queue_hotplug_work(struct work_struct *work);
	void acpi_device_hotplug(struct acpi_device *adev, u32 src);
	bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);

	acpi_status acpi_sysfs_table_handler(u32 event, void table, void context);
	void acpi_scan_table_handler(u32 event, void table, void context);

	/* --------------------------------------------------------------------------
	Device Node Initialization / Removal
	-------------------------------------------------------------------------- */
	#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT \| ACPI_STA_DEVICE_ENABLED \| \
	ACPI_STA_DEVICE_UI \| ACPI_STA_DEVICE_FUNCTIONING)

	extern struct list_head acpi_bus_id_list;

	struct acpi_device_bus_id {
	char bus_id[15];
	unsigned int instance_no;
	struct list_head node;
	};

	int acpi_device_add(struct acpi_device *device,
	void (release)(struct device ));
	void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
	int type, unsigned long long sta);
	int acpi_device_setup_files(struct acpi_device *dev);
	void acpi_device_remove_files(struct acpi_device *dev);
	void acpi_device_add_finalize(struct acpi_device *device);
	void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
	bool acpi_device_is_present(struct acpi_device *adev);
	bool acpi_device_is_battery(struct acpi_device *adev);
	bool acpi_device_is_first_physical_node(struct acpi_device *adev,
	const struct device *dev);

	/* --------------------------------------------------------------------------
	Device Matching and Notification
	-------------------------------------------------------------------------- */
	struct acpi_device acpi_companion_match(const struct device dev);
	int __acpi_device_uevent_modalias(struct acpi_device *adev,
	struct kobj_uevent_env *env);

	/* --------------------------------------------------------------------------
	Power Resource
	-------------------------------------------------------------------------- */
	int acpi_power_init(void);
	void acpi_power_resources_list_free(struct list_head *list);
	int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
	struct list_head *list);
	int acpi_add_power_resource(acpi_handle handle);
	void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
	int acpi_power_wakeup_list_init(struct list_head list, int system_level);
	int acpi_device_sleep_wake(struct acpi_device *dev,
	int enable, int sleep_state, int dev_state);
	int acpi_power_get_inferred_state(struct acpi_device device, int state);
	int acpi_power_on_resources(struct acpi_device *device, int state);
	int acpi_power_transition(struct acpi_device *device, int state);

	int acpi_wakeup_device_init(void);

	#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
	void acpi_early_processor_set_pdc(void);
	#else
	static inline void acpi_early_processor_set_pdc(void) {}
	#endif

	#ifdef CONFIG_X86
	void acpi_early_processor_osc(void);
	#else
	static inline void acpi_early_processor_osc(void) {}
	#endif

	/* --------------------------------------------------------------------------
	Embedded Controller
	-------------------------------------------------------------------------- */
	struct acpi_ec {
	acpi_handle handle;
	unsigned long gpe;
	unsigned long command_addr;
	unsigned long data_addr;
	bool global_lock;
	unsigned long flags;
	unsigned long reference_count;
	struct mutex mutex;
	wait_queue_head_t wait;
	struct list_head list;
	struct transaction *curr;
	spinlock_t lock;
	struct work_struct work;
	unsigned long timestamp;
	unsigned long nr_pending_queries;
	bool saved_busy_polling;
	unsigned int saved_polling_guard;
	};

	extern struct acpi_ec *first_ec;

	/* If we find an EC via the ECDT, we need to keep a ptr to its context */
	/* External interfaces use first EC only, so remember */
	typedef int (acpi_ec_query_func) (void data);

	int acpi_ec_init(void);
	int acpi_ec_ecdt_probe(void);
	int acpi_ec_dsdt_probe(void);
	int acpi_ec_ecdt_start(void);
	void acpi_ec_block_transactions(void);
	void acpi_ec_unblock_transactions(void);
	int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
	acpi_handle handle, acpi_ec_query_func func,
	void *data);
	void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);


	/*--------------------------------------------------------------------------
	Suspend/Resume
	-------------------------------------------------------------------------- */
	#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
	extern int acpi_sleep_init(void);
	#else
	static inline int acpi_sleep_init(void) { return -ENXIO; }
	#endif

	#ifdef CONFIG_ACPI_SLEEP
	void acpi_sleep_proc_init(void);
	int suspend_nvs_alloc(void);
	void suspend_nvs_free(void);
	int suspend_nvs_save(void);
	void suspend_nvs_restore(void);
	#else
	static inline void acpi_sleep_proc_init(void) {}
	static inline int suspend_nvs_alloc(void) { return 0; }
	static inline void suspend_nvs_free(void) {}
	static inline int suspend_nvs_save(void) { return 0; }
	static inline void suspend_nvs_restore(void) {}
	#endif

	/*--------------------------------------------------------------------------
	Device properties
	-------------------------------------------------------------------------- */
	#define ACPI_DT_NAMESPACE_HID "PRP0001"

	void acpi_init_properties(struct acpi_device *adev);
	void acpi_free_properties(struct acpi_device *adev);

	/*--------------------------------------------------------------------------
	Watchdog
	-------------------------------------------------------------------------- */

	#ifdef CONFIG_ACPI_WATCHDOG
	void acpi_watchdog_init(void);
	#else
	static inline void acpi_watchdog_init(void) {}
	#endif

	#endif /* _ACPI_INTERNAL_H_ */