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#include <linux/idr.h>
13
14#define PREFIX "ACPI: "
15
16int early_acpi_osi_init(void);
17int acpi_osi_init(void);
18acpi_status acpi_os_initialize1(void);
19int acpi_scan_init(void);
20#ifdef CONFIG_PCI
21void acpi_pci_root_init(void);
22void acpi_pci_link_init(void);
23#else
24static inline void acpi_pci_root_init(void) {}
25static inline void acpi_pci_link_init(void) {}
26#endif
27void acpi_processor_init(void);
28void acpi_platform_init(void);
29void acpi_pnp_init(void);
30void acpi_int340x_thermal_init(void);
31#ifdef CONFIG_ARM_AMBA
32void acpi_amba_init(void);
33#else
34static inline void acpi_amba_init(void) {}
35#endif
36int acpi_sysfs_init(void);
37void acpi_gpe_apply_masked_gpes(void);
38void acpi_container_init(void);
39void acpi_memory_hotplug_init(void);
40#ifdef	CONFIG_ACPI_HOTPLUG_IOAPIC
41void pci_ioapic_remove(struct acpi_pci_root *root);
42int acpi_ioapic_remove(struct acpi_pci_root *root);
43#else
44static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
45static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
46#endif
47#ifdef CONFIG_ACPI_DOCK
48void register_dock_dependent_device(struct acpi_device *adev,
49				    acpi_handle dshandle);
50int dock_notify(struct acpi_device *adev, u32 event);
51void acpi_dock_add(struct acpi_device *adev);
52#else
53static inline void register_dock_dependent_device(struct acpi_device *adev,
54						  acpi_handle dshandle) {}
55static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
56static inline void acpi_dock_add(struct acpi_device *adev) {}
57#endif
58#ifdef CONFIG_X86
59void acpi_cmos_rtc_init(void);
60#else
61static inline void acpi_cmos_rtc_init(void) {}
62#endif
63int acpi_rev_override_setup(char *str);
64
65void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
66				    const char *name);
67int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
68				       const char *hotplug_profile_name);
69void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
70
71#ifdef CONFIG_DEBUG_FS
72extern struct dentry *acpi_debugfs_dir;
73void acpi_debugfs_init(void);
74#else
75static inline void acpi_debugfs_init(void) { return; }
76#endif
77#ifdef CONFIG_PCI
78void acpi_lpss_init(void);
79#else
80static inline void acpi_lpss_init(void) {}
81#endif
82
83void acpi_apd_init(void);
84
85acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
86bool acpi_queue_hotplug_work(struct work_struct *work);
87void acpi_device_hotplug(struct acpi_device *adev, u32 src);
88bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
89
90acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
91void acpi_scan_table_handler(u32 event, void *table, void *context);
92
93/* --------------------------------------------------------------------------
94                     Device Node Initialization / Removal
95   -------------------------------------------------------------------------- */
96#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
97			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
98
99extern struct list_head acpi_bus_id_list;
100
101#define ACPI_MAX_DEVICE_INSTANCES	4096
102
103struct acpi_device_bus_id {
104	const char *bus_id;
105	struct ida instance_ida;
106	struct list_head node;
107};
108
109int acpi_device_add(struct acpi_device *device,
110		    void (*release)(struct device *));
111void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
112			     int type, unsigned long long sta);
113int acpi_device_setup_files(struct acpi_device *dev);
114void acpi_device_remove_files(struct acpi_device *dev);
115void acpi_device_add_finalize(struct acpi_device *device);
116void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
117bool acpi_device_is_present(const struct acpi_device *adev);
118bool acpi_device_is_battery(struct acpi_device *adev);
119bool acpi_device_is_first_physical_node(struct acpi_device *adev,
120					const struct device *dev);
121int acpi_bus_register_early_device(int type);
122
123/* --------------------------------------------------------------------------
124                     Device Matching and Notification
125   -------------------------------------------------------------------------- */
126struct acpi_device *acpi_companion_match(const struct device *dev);
127int __acpi_device_uevent_modalias(struct acpi_device *adev,
128				  struct kobj_uevent_env *env);
129
130/* --------------------------------------------------------------------------
131                                  Power Resource
132   -------------------------------------------------------------------------- */
133int acpi_power_init(void);
134void acpi_power_resources_list_free(struct list_head *list);
135int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
136				 struct list_head *list);
137int acpi_add_power_resource(acpi_handle handle);
138void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
139int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
140int acpi_device_sleep_wake(struct acpi_device *dev,
141			   int enable, int sleep_state, int dev_state);
142int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
143int acpi_power_on_resources(struct acpi_device *device, int state);
144int acpi_power_transition(struct acpi_device *device, int state);
145
146/* --------------------------------------------------------------------------
147                              Device Power Management
148   -------------------------------------------------------------------------- */
149int acpi_device_get_power(struct acpi_device *device, int *state);
150int acpi_wakeup_device_init(void);
151
152/* --------------------------------------------------------------------------
153                                  Processor
154   -------------------------------------------------------------------------- */
155#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
156void acpi_early_processor_set_pdc(void);
157#else
158static inline void acpi_early_processor_set_pdc(void) {}
159#endif
160
161#ifdef CONFIG_X86
162void acpi_early_processor_osc(void);
163#else
164static inline void acpi_early_processor_osc(void) {}
165#endif
166
167/* --------------------------------------------------------------------------
168                                  Embedded Controller
169   -------------------------------------------------------------------------- */
170struct acpi_ec {
171	acpi_handle handle;
172	int gpe;
173	int irq;
174	unsigned long command_addr;
175	unsigned long data_addr;
176	bool global_lock;
177	unsigned long flags;
178	unsigned long reference_count;
179	struct mutex mutex;
180	wait_queue_head_t wait;
181	struct list_head list;
182	struct transaction *curr;
183	spinlock_t lock;
184	struct work_struct work;
185	unsigned long timestamp;
186	unsigned long nr_pending_queries;
187	unsigned int events_in_progress;
188	unsigned int queries_in_progress;
189	bool busy_polling;
190	unsigned int polling_guard;
191};
192
193extern struct acpi_ec *first_ec;
194
195/* If we find an EC via the ECDT, we need to keep a ptr to its context */
196/* External interfaces use first EC only, so remember */
197typedef int (*acpi_ec_query_func) (void *data);
198
199void acpi_ec_init(void);
200void acpi_ec_ecdt_probe(void);
201void acpi_ec_dsdt_probe(void);
202void acpi_ec_block_transactions(void);
203void acpi_ec_unblock_transactions(void);
204int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
205			      acpi_handle handle, acpi_ec_query_func func,
206			      void *data);
207void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
208
209#ifdef CONFIG_PM_SLEEP
210void acpi_ec_flush_work(void);
211bool acpi_ec_dispatch_gpe(void);
212#endif
213
214
215/*--------------------------------------------------------------------------
216                                  Suspend/Resume
217  -------------------------------------------------------------------------- */
218#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
219extern bool acpi_s2idle_wakeup(void);
220extern int acpi_sleep_init(void);
221#else
222static inline bool acpi_s2idle_wakeup(void) { return false; }
223static inline int acpi_sleep_init(void) { return -ENXIO; }
224#endif
225
226#ifdef CONFIG_ACPI_SLEEP
227void acpi_sleep_proc_init(void);
228int suspend_nvs_alloc(void);
229void suspend_nvs_free(void);
230int suspend_nvs_save(void);
231void suspend_nvs_restore(void);
232#else
233static inline void acpi_sleep_proc_init(void) {}
234static inline int suspend_nvs_alloc(void) { return 0; }
235static inline void suspend_nvs_free(void) {}
236static inline int suspend_nvs_save(void) { return 0; }
237static inline void suspend_nvs_restore(void) {}
238#endif
239
240/*--------------------------------------------------------------------------
241				Device properties
242  -------------------------------------------------------------------------- */
243#define ACPI_DT_NAMESPACE_HID	"PRP0001"
244
245void acpi_init_properties(struct acpi_device *adev);
246void acpi_free_properties(struct acpi_device *adev);
247
248#ifdef CONFIG_X86
249void acpi_extract_apple_properties(struct acpi_device *adev);
250#else
251static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
252#endif
253
254/*--------------------------------------------------------------------------
255				Watchdog
256  -------------------------------------------------------------------------- */
257
258#ifdef CONFIG_ACPI_WATCHDOG
259void acpi_watchdog_init(void);
260#else
261static inline void acpi_watchdog_init(void) {}
262#endif
263
264#ifdef CONFIG_ACPI_LPIT
265void acpi_init_lpit(void);
266#else
267static inline void acpi_init_lpit(void) { }
268#endif
269
270#endif /* _ACPI_INTERNAL_H_ */
271