--- /dev/null
+/*
+ * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
+ *
+ * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef __ACPI_BUS_H__
+#define __ACPI_BUS_H__
+
+#include <linux/device.h>
+#include <linux/property.h>
+
+/* TBD: Make dynamic */
+#define ACPI_MAX_HANDLES 10
+struct acpi_handle_list {
+ u32 count;
+ acpi_handle handles[ACPI_MAX_HANDLES];
+};
+
+/* acpi_utils.h */
+acpi_status
+acpi_extract_package(union acpi_object *package,
+ struct acpi_buffer *format, struct acpi_buffer *buffer);
+acpi_status
+acpi_evaluate_integer(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *arguments, unsigned long long *data);
+acpi_status
+acpi_evaluate_reference(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *arguments,
+ struct acpi_handle_list *list);
+acpi_status
+acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
+ struct acpi_buffer *status_buf);
+
+acpi_status
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
+
+bool acpi_has_method(acpi_handle handle, char *name);
+acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
+ u64 arg);
+acpi_status acpi_evaluate_ej0(acpi_handle handle);
+acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
+bool acpi_ata_match(acpi_handle handle);
+bool acpi_bay_match(acpi_handle handle);
+bool acpi_dock_match(acpi_handle handle);
+
+bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs);
+union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid,
+ int rev, int func, union acpi_object *argv4);
+
+static inline union acpi_object *
+acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func,
+ union acpi_object *argv4, acpi_object_type type)
+{
+ union acpi_object *obj;
+
+ obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4);
+ if (obj && obj->type != type) {
+ ACPI_FREE(obj);
+ obj = NULL;
+ }
+
+ return obj;
+}
+
+#define ACPI_INIT_DSM_ARGV4(cnt, eles) \
+ { \
+ .package.type = ACPI_TYPE_PACKAGE, \
+ .package.count = (cnt), \
+ .package.elements = (eles) \
+ }
+
+#ifdef CONFIG_ACPI
+
+#include <linux/proc_fs.h>
+
+#define ACPI_BUS_FILE_ROOT "acpi"
+extern struct proc_dir_entry *acpi_root_dir;
+
+enum acpi_bus_device_type {
+ ACPI_BUS_TYPE_DEVICE = 0,
+ ACPI_BUS_TYPE_POWER,
+ ACPI_BUS_TYPE_PROCESSOR,
+ ACPI_BUS_TYPE_THERMAL,
+ ACPI_BUS_TYPE_POWER_BUTTON,
+ ACPI_BUS_TYPE_SLEEP_BUTTON,
+ ACPI_BUS_DEVICE_TYPE_COUNT
+};
+
+struct acpi_driver;
+struct acpi_device;
+
+/*
+ * ACPI Scan Handler
+ * -----------------
+ */
+
+struct acpi_hotplug_profile {
+ struct kobject kobj;
+ int (*scan_dependent)(struct acpi_device *adev);
+ void (*notify_online)(struct acpi_device *adev);
+ bool enabled:1;
+ bool demand_offline:1;
+};
+
+static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
+ struct kobject *kobj)
+{
+ return container_of(kobj, struct acpi_hotplug_profile, kobj);
+}
+
+struct acpi_scan_handler {
+ const struct acpi_device_id *ids;
+ struct list_head list_node;
+ bool (*match)(char *idstr, const struct acpi_device_id **matchid);
+ int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
+ void (*detach)(struct acpi_device *dev);
+ void (*bind)(struct device *phys_dev);
+ void (*unbind)(struct device *phys_dev);
+ struct acpi_hotplug_profile hotplug;
+};
+
+/*
+ * ACPI Hotplug Context
+ * --------------------
+ */
+
+struct acpi_hotplug_context {
+ struct acpi_device *self;
+ int (*notify)(struct acpi_device *, u32);
+ void (*uevent)(struct acpi_device *, u32);
+ void (*fixup)(struct acpi_device *);
+};
+
+/*
+ * ACPI Driver
+ * -----------
+ */
+
+typedef int (*acpi_op_add) (struct acpi_device * device);
+typedef int (*acpi_op_remove) (struct acpi_device * device);
+typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
+
+struct acpi_device_ops {
+ acpi_op_add add;
+ acpi_op_remove remove;
+ acpi_op_notify notify;
+};
+
+#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
+
+struct acpi_driver {
+ char name[80];
+ char class[80];
+ const struct acpi_device_id *ids; /* Supported Hardware IDs */
+ unsigned int flags;
+ struct acpi_device_ops ops;
+ struct device_driver drv;
+ struct module *owner;
+};
+
+/*
+ * ACPI Device
+ * -----------
+ */
+
+/* Status (_STA) */
+
+struct acpi_device_status {
+ u32 present:1;
+ u32 enabled:1;
+ u32 show_in_ui:1;
+ u32 functional:1;
+ u32 battery_present:1;
+ u32 reserved:27;
+};
+
+/* Flags */
+
+struct acpi_device_flags {
+ u32 dynamic_status:1;
+ u32 removable:1;
+ u32 ejectable:1;
+ u32 power_manageable:1;
+ u32 match_driver:1;
+ u32 initialized:1;
+ u32 visited:1;
+ u32 hotplug_notify:1;
+ u32 is_dock_station:1;
+ u32 reserved:23;
+};
+
+/* File System */
+
+struct acpi_device_dir {
+ struct proc_dir_entry *entry;
+};
+
+#define acpi_device_dir(d) ((d)->dir.entry)
+
+/* Plug and Play */
+
+typedef char acpi_bus_id[8];
+typedef unsigned long acpi_bus_address;
+typedef char acpi_device_name[40];
+typedef char acpi_device_class[20];
+
+struct acpi_hardware_id {
+ struct list_head list;
+ char *id;
+};
+
+struct acpi_pnp_type {
+ u32 hardware_id:1;
+ u32 bus_address:1;
+ u32 platform_id:1;
+ u32 reserved:29;
+};
+
+struct acpi_device_pnp {
+ acpi_bus_id bus_id; /* Object name */
+ struct acpi_pnp_type type; /* ID type */
+ acpi_bus_address bus_address; /* _ADR */
+ char *unique_id; /* _UID */
+ struct list_head ids; /* _HID and _CIDs */
+ acpi_device_name device_name; /* Driver-determined */
+ acpi_device_class device_class; /* " */
+ union acpi_object *str_obj; /* unicode string for _STR method */
+};
+
+#define acpi_device_bid(d) ((d)->pnp.bus_id)
+#define acpi_device_adr(d) ((d)->pnp.bus_address)
+const char *acpi_device_hid(struct acpi_device *device);
+#define acpi_device_uid(d) ((d)->pnp.unique_id)
+#define acpi_device_name(d) ((d)->pnp.device_name)
+#define acpi_device_class(d) ((d)->pnp.device_class)
+
+/* Power Management */
+
+struct acpi_device_power_flags {
+ u32 explicit_get:1; /* _PSC present? */
+ u32 power_resources:1; /* Power resources */
+ u32 inrush_current:1; /* Serialize Dx->D0 */
+ u32 power_removed:1; /* Optimize Dx->D0 */
+ u32 ignore_parent:1; /* Power is independent of parent power state */
+ u32 dsw_present:1; /* _DSW present? */
+ u32 reserved:26;
+};
+
+struct acpi_device_power_state {
+ struct {
+ u8 valid:1;
+ u8 os_accessible:1;
+ u8 explicit_set:1; /* _PSx present? */
+ u8 reserved:6;
+ } flags;
+ int power; /* % Power (compared to D0) */
+ int latency; /* Dx->D0 time (microseconds) */
+ struct list_head resources; /* Power resources referenced */
+};
+
+struct acpi_device_power {
+ int state; /* Current state */
+ struct acpi_device_power_flags flags;
+ struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
+};
+
+/* Performance Management */
+
+struct acpi_device_perf_flags {
+ u8 reserved:8;
+};
+
+struct acpi_device_perf_state {
+ struct {
+ u8 valid:1;
+ u8 reserved:7;
+ } flags;
+ u8 power; /* % Power (compared to P0) */
+ u8 performance; /* % Performance ( " ) */
+ int latency; /* Px->P0 time (microseconds) */
+};
+
+struct acpi_device_perf {
+ int state;
+ struct acpi_device_perf_flags flags;
+ int state_count;
+ struct acpi_device_perf_state *states;
+};
+
+/* Wakeup Management */
+struct acpi_device_wakeup_flags {
+ u8 valid:1; /* Can successfully enable wakeup? */
+ u8 run_wake:1; /* Run-Wake GPE devices */
+ u8 notifier_present:1; /* Wake-up notify handler has been installed */
+ u8 enabled:1; /* Enabled for wakeup */
+};
+
+struct acpi_device_wakeup_context {
+ struct work_struct work;
+ struct device *dev;
+};
+
+struct acpi_device_wakeup {
+ acpi_handle gpe_device;
+ u64 gpe_number;
+ u64 sleep_state;
+ struct list_head resources;
+ struct acpi_device_wakeup_flags flags;
+ struct acpi_device_wakeup_context context;
+ struct wakeup_source *ws;
+ int prepare_count;
+};
+
+struct acpi_device_physical_node {
+ unsigned int node_id;
+ struct list_head node;
+ struct device *dev;
+ bool put_online:1;
+};
+
+/* ACPI Device Specific Data (_DSD) */
+struct acpi_device_data {
+ const union acpi_object *pointer;
+ const union acpi_object *properties;
+ const union acpi_object *of_compatible;
+};
+
+struct acpi_gpio_mapping;
+
+/* Device */
+struct acpi_device {
+ int device_type;
+ acpi_handle handle; /* no handle for fixed hardware */
+ struct fwnode_handle fwnode;
+ struct acpi_device *parent;
+ struct list_head children;
+ struct list_head node;
+ struct list_head wakeup_list;
+ struct list_head del_list;
+ struct acpi_device_status status;
+ struct acpi_device_flags flags;
+ struct acpi_device_pnp pnp;
+ struct acpi_device_power power;
+ struct acpi_device_wakeup wakeup;
+ struct acpi_device_perf performance;
+ struct acpi_device_dir dir;
+ struct acpi_device_data data;
+ struct acpi_scan_handler *handler;
+ struct acpi_hotplug_context *hp;
+ struct acpi_driver *driver;
+ const struct acpi_gpio_mapping *driver_gpios;
+ void *driver_data;
+ struct device dev;
+ unsigned int physical_node_count;
+ unsigned int dep_unmet;
+ struct list_head physical_node_list;
+ struct mutex physical_node_lock;
+ void (*remove)(struct acpi_device *);
+};
+
+static inline bool is_acpi_node(struct fwnode_handle *fwnode)
+{
+ return fwnode && fwnode->type == FWNODE_ACPI;
+}
+
+static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
+{
+ return is_acpi_node(fwnode) ?
+ container_of(fwnode, struct acpi_device, fwnode) : NULL;
+}
+
+static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
+{
+ return &adev->fwnode;
+}
+
+static inline void *acpi_driver_data(struct acpi_device *d)
+{
+ return 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)
+
+static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
+{
+ *((u32 *)&adev->status) = sta;
+}
+
+static inline void acpi_set_hp_context(struct acpi_device *adev,
+ struct acpi_hotplug_context *hp)
+{
+ hp->self = adev;
+ adev->hp = hp;
+}
+
+void acpi_initialize_hp_context(struct acpi_device *adev,
+ struct acpi_hotplug_context *hp,
+ int (*notify)(struct acpi_device *, u32),
+ void (*uevent)(struct acpi_device *, u32));
+
+/* acpi_device.dev.bus == &acpi_bus_type */
+extern struct bus_type acpi_bus_type;
+
+/*
+ * Events
+ * ------
+ */
+
+struct acpi_bus_event {
+ struct list_head node;
+ acpi_device_class device_class;
+ acpi_bus_id bus_id;
+ u32 type;
+ u32 data;
+};
+
+extern struct kobject *acpi_kobj;
+extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
+void acpi_bus_private_data_handler(acpi_handle, void *);
+int acpi_bus_get_private_data(acpi_handle, void **);
+int acpi_bus_attach_private_data(acpi_handle, void *);
+void acpi_bus_detach_private_data(acpi_handle);
+extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
+extern int register_acpi_notifier(struct notifier_block *);
+extern int unregister_acpi_notifier(struct notifier_block *);
+
+/*
+ * External Functions
+ */
+
+int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
+struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
+void acpi_bus_put_acpi_device(struct acpi_device *adev);
+acpi_status acpi_bus_get_status_handle(acpi_handle handle,
+ unsigned long long *sta);
+int acpi_bus_get_status(struct acpi_device *device);
+
+int acpi_bus_set_power(acpi_handle handle, int state);
+const char *acpi_power_state_string(int state);
+int acpi_device_get_power(struct acpi_device *device, int *state);
+int acpi_device_set_power(struct acpi_device *device, int state);
+int acpi_bus_init_power(struct acpi_device *device);
+int acpi_device_fix_up_power(struct acpi_device *device);
+int acpi_bus_update_power(acpi_handle handle, int *state_p);
+int acpi_device_update_power(struct acpi_device *device, int *state_p);
+bool acpi_bus_power_manageable(acpi_handle handle);
+
+#ifdef CONFIG_PM
+bool acpi_bus_can_wakeup(acpi_handle handle);
+#else
+static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
+#endif
+
+void acpi_scan_lock_acquire(void);
+void acpi_scan_lock_release(void);
+void acpi_lock_hp_context(void);
+void acpi_unlock_hp_context(void);
+int acpi_scan_add_handler(struct acpi_scan_handler *handler);
+int acpi_bus_register_driver(struct acpi_driver *driver);
+void acpi_bus_unregister_driver(struct acpi_driver *driver);
+int acpi_bus_scan(acpi_handle handle);
+void acpi_bus_trim(struct acpi_device *start);
+acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
+int acpi_match_device_ids(struct acpi_device *device,
+ const struct acpi_device_id *ids);
+int acpi_create_dir(struct acpi_device *);
+void acpi_remove_dir(struct acpi_device *);
+
+static inline bool acpi_device_enumerated(struct acpi_device *adev)
+{
+ return adev && adev->flags.initialized && adev->flags.visited;
+}
+
+/**
+ * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
+ * @__acpi_driver: acpi_driver struct
+ *
+ * Helper macro for ACPI drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_acpi_driver(__acpi_driver) \
+ module_driver(__acpi_driver, acpi_bus_register_driver, \
+ acpi_bus_unregister_driver)
+
+/*
+ * Bind physical devices with ACPI devices
+ */
+struct acpi_bus_type {
+ struct list_head list;
+ const char *name;
+ bool (*match)(struct device *dev);
+ struct acpi_device * (*find_companion)(struct device *);
+ void (*setup)(struct device *);
+ void (*cleanup)(struct device *);
+};
+int register_acpi_bus_type(struct acpi_bus_type *);
+int unregister_acpi_bus_type(struct acpi_bus_type *);
+int acpi_bind_one(struct device *dev, struct acpi_device *adev);
+int acpi_unbind_one(struct device *dev);
+
+struct acpi_pci_root {
+ struct acpi_device * device;
+ struct pci_bus *bus;
+ u16 segment;
+ struct resource secondary; /* downstream bus range */
+
+ u32 osc_support_set; /* _OSC state of support bits */
+ u32 osc_control_set; /* _OSC state of control bits */
+ phys_addr_t mcfg_addr;
+};
+
+/* helper */
+
+struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
+ u64 address, bool check_children);
+int acpi_is_root_bridge(acpi_handle);
+struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
+
+int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
+int acpi_disable_wakeup_device_power(struct acpi_device *dev);
+
+#ifdef CONFIG_PM
+acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
+ void (*work_func)(struct work_struct *work));
+acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
+int acpi_pm_device_sleep_state(struct device *, int *, int);
+int acpi_pm_device_run_wake(struct device *, bool);
+#else
+static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
+ struct device *dev,
+ void (*work_func)(struct work_struct *work))
+{
+ return AE_SUPPORT;
+}
+static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
+{
+ return AE_SUPPORT;
+}
+static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
+{
+ if (p)
+ *p = ACPI_STATE_D0;
+
+ return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
+ m : ACPI_STATE_D0;
+}
+static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
+{
+ return -ENODEV;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+int acpi_pm_device_sleep_wake(struct device *, bool);
+#else
+static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+{
+ return -ENODEV;
+}
+#endif
+
+#ifdef CONFIG_ACPI_SLEEP
+u32 acpi_target_system_state(void);
+#else
+static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
+#endif
+
+static inline bool acpi_device_power_manageable(struct acpi_device *adev)
+{
+ return adev->flags.power_manageable;
+}
+
+static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
+{
+ return adev->wakeup.flags.valid;
+}
+
+static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
+{
+ return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible;
+}
+
+#else /* CONFIG_ACPI */
+
+static inline int register_acpi_bus_type(void *bus) { return 0; }
+static inline int unregister_acpi_bus_type(void *bus) { return 0; }
+
+#endif /* CONFIG_ACPI */
+
+#endif /*__ACPI_BUS_H__*/
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