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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * acpi/internal.h
4 * For use by Linux/ACPI infrastructure, not drivers
5 *
6 * Copyright (c) 2009, Intel Corporation.
7 */
8
9#ifndef _ACPI_INTERNAL_H_
10#define _ACPI_INTERNAL_H_
11
12#define PREFIX "ACPI: "
13
14int early_acpi_osi_init(void);
15int acpi_osi_init(void);
16acpi_status acpi_os_initialize1(void);
17int acpi_scan_init(void);
18#ifdef CONFIG_PCI
19void acpi_pci_root_init(void);
20void acpi_pci_link_init(void);
21#else
22static inline void acpi_pci_root_init(void) {}
23static inline void acpi_pci_link_init(void) {}
24#endif
25void acpi_processor_init(void);
26void acpi_platform_init(void);
27void acpi_pnp_init(void);
28void acpi_int340x_thermal_init(void);
29#ifdef CONFIG_ARM_AMBA
30void acpi_amba_init(void);
31#else
32static inline void acpi_amba_init(void) {}
33#endif
34int acpi_sysfs_init(void);
35void acpi_gpe_apply_masked_gpes(void);
36void acpi_container_init(void);
37void acpi_memory_hotplug_init(void);
38#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
39void pci_ioapic_remove(struct acpi_pci_root *root);
40int acpi_ioapic_remove(struct acpi_pci_root *root);
41#else
42static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
43static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
44#endif
45#ifdef CONFIG_ACPI_DOCK
46void register_dock_dependent_device(struct acpi_device *adev,
47 acpi_handle dshandle);
48int dock_notify(struct acpi_device *adev, u32 event);
49void acpi_dock_add(struct acpi_device *adev);
50#else
51static inline void register_dock_dependent_device(struct acpi_device *adev,
52 acpi_handle dshandle) {}
53static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
54static inline void acpi_dock_add(struct acpi_device *adev) {}
55#endif
56#ifdef CONFIG_X86
57void acpi_cmos_rtc_init(void);
58#else
59static inline void acpi_cmos_rtc_init(void) {}
60#endif
61int acpi_rev_override_setup(char *str);
62
63void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
64 const char *name);
65int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
66 const char *hotplug_profile_name);
67void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
68
69#ifdef CONFIG_DEBUG_FS
70extern struct dentry *acpi_debugfs_dir;
71void acpi_debugfs_init(void);
72#else
73static inline void acpi_debugfs_init(void) { return; }
74#endif
75#ifdef CONFIG_PCI
76void acpi_lpss_init(void);
77#else
78static inline void acpi_lpss_init(void) {}
79#endif
80
81void acpi_apd_init(void);
82
83acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
84bool acpi_queue_hotplug_work(struct work_struct *work);
85void acpi_device_hotplug(struct acpi_device *adev, u32 src);
86bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
87
88acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
89void acpi_scan_table_handler(u32 event, void *table, void *context);
90
91/* --------------------------------------------------------------------------
92 Device Node Initialization / Removal
93 -------------------------------------------------------------------------- */
94#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
95 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
96
97extern struct list_head acpi_bus_id_list;
98
99struct acpi_device_bus_id {
100 char bus_id[15];
101 unsigned int instance_no;
102 struct list_head node;
103};
104
105int acpi_device_add(struct acpi_device *device,
106 void (*release)(struct device *));
107void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
108 int type, unsigned long long sta);
109int acpi_device_setup_files(struct acpi_device *dev);
110void acpi_device_remove_files(struct acpi_device *dev);
111void acpi_device_add_finalize(struct acpi_device *device);
112void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
113bool acpi_device_is_present(const struct acpi_device *adev);
114bool acpi_device_is_battery(struct acpi_device *adev);
115bool acpi_device_is_first_physical_node(struct acpi_device *adev,
116 const struct device *dev);
117int acpi_bus_register_early_device(int type);
118
119/* --------------------------------------------------------------------------
120 Device Matching and Notification
121 -------------------------------------------------------------------------- */
122struct acpi_device *acpi_companion_match(const struct device *dev);
123int __acpi_device_uevent_modalias(struct acpi_device *adev,
124 struct kobj_uevent_env *env);
125
126/* --------------------------------------------------------------------------
127 Power Resource
128 -------------------------------------------------------------------------- */
129int acpi_power_init(void);
130void acpi_power_resources_list_free(struct list_head *list);
131int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
132 struct list_head *list);
133int acpi_add_power_resource(acpi_handle handle);
134void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
135int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
136int acpi_device_sleep_wake(struct acpi_device *dev,
137 int enable, int sleep_state, int dev_state);
138int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
139int acpi_power_on_resources(struct acpi_device *device, int state);
140int acpi_power_transition(struct acpi_device *device, int state);
141
142int acpi_wakeup_device_init(void);
143
144#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
145void acpi_early_processor_set_pdc(void);
146#else
147static inline void acpi_early_processor_set_pdc(void) {}
148#endif
149
150#ifdef CONFIG_X86
151void acpi_early_processor_osc(void);
152#else
153static inline void acpi_early_processor_osc(void) {}
154#endif
155
156/* --------------------------------------------------------------------------
157 Embedded Controller
158 -------------------------------------------------------------------------- */
159struct acpi_ec {
160 acpi_handle handle;
161 u32 gpe;
162 unsigned long command_addr;
163 unsigned long data_addr;
164 bool global_lock;
165 unsigned long flags;
166 unsigned long reference_count;
167 struct mutex mutex;
168 wait_queue_head_t wait;
169 struct list_head list;
170 struct transaction *curr;
171 spinlock_t lock;
172 struct work_struct work;
173 unsigned long timestamp;
174 unsigned long nr_pending_queries;
175 bool busy_polling;
176 unsigned int polling_guard;
177};
178
179extern struct acpi_ec *first_ec;
180
181/* If we find an EC via the ECDT, we need to keep a ptr to its context */
182/* External interfaces use first EC only, so remember */
183typedef int (*acpi_ec_query_func) (void *data);
184
185int acpi_ec_init(void);
186void acpi_ec_ecdt_probe(void);
187void acpi_ec_dsdt_probe(void);
188void acpi_ec_block_transactions(void);
189void acpi_ec_unblock_transactions(void);
190void acpi_ec_mark_gpe_for_wake(void);
191void acpi_ec_set_gpe_wake_mask(u8 action);
192void acpi_ec_dispatch_gpe(void);
193int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
194 acpi_handle handle, acpi_ec_query_func func,
195 void *data);
196void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
197
198#ifdef CONFIG_PM_SLEEP
199void acpi_ec_flush_work(void);
200#endif
201
202
203/*--------------------------------------------------------------------------
204 Suspend/Resume
205 -------------------------------------------------------------------------- */
206#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
207extern bool acpi_s2idle_wakeup(void);
208extern bool acpi_sleep_no_ec_events(void);
209extern int acpi_sleep_init(void);
210#else
211static inline bool acpi_s2idle_wakeup(void) { return false; }
212static inline bool acpi_sleep_no_ec_events(void) { return true; }
213static inline int acpi_sleep_init(void) { return -ENXIO; }
214#endif
215
216#ifdef CONFIG_ACPI_SLEEP
217void acpi_sleep_proc_init(void);
218int suspend_nvs_alloc(void);
219void suspend_nvs_free(void);
220int suspend_nvs_save(void);
221void suspend_nvs_restore(void);
222#else
223static inline void acpi_sleep_proc_init(void) {}
224static inline int suspend_nvs_alloc(void) { return 0; }
225static inline void suspend_nvs_free(void) {}
226static inline int suspend_nvs_save(void) { return 0; }
227static inline void suspend_nvs_restore(void) {}
228#endif
229
230/*--------------------------------------------------------------------------
231 Device properties
232 -------------------------------------------------------------------------- */
233#define ACPI_DT_NAMESPACE_HID "PRP0001"
234
235void acpi_init_properties(struct acpi_device *adev);
236void acpi_free_properties(struct acpi_device *adev);
237
238#ifdef CONFIG_X86
239void acpi_extract_apple_properties(struct acpi_device *adev);
240#else
241static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
242#endif
243
244/*--------------------------------------------------------------------------
245 Watchdog
246 -------------------------------------------------------------------------- */
247
248#ifdef CONFIG_ACPI_WATCHDOG
249void acpi_watchdog_init(void);
250#else
251static inline void acpi_watchdog_init(void) {}
252#endif
253
254#ifdef CONFIG_ACPI_LPIT
255void acpi_init_lpit(void);
256#else
257static inline void acpi_init_lpit(void) { }
258#endif
259
260#endif /* _ACPI_INTERNAL_H_ */