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Linux kernel mirror (for testing)
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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#include <linux/idr.h>
13
14int early_acpi_osi_init(void);
15int acpi_osi_init(void);
16acpi_status acpi_os_initialize1(void);
17void 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_notify(void);
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 const char *bus_id;
101 struct ida instance_ida;
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);
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);
133struct acpi_device *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);
141void acpi_turn_off_unused_power_resources(void);
142
143/* --------------------------------------------------------------------------
144 Device Power Management
145 -------------------------------------------------------------------------- */
146int acpi_device_get_power(struct acpi_device *device, int *state);
147int acpi_wakeup_device_init(void);
148
149/* --------------------------------------------------------------------------
150 Processor
151 -------------------------------------------------------------------------- */
152#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
153void acpi_early_processor_set_pdc(void);
154#else
155static inline void acpi_early_processor_set_pdc(void) {}
156#endif
157
158#ifdef CONFIG_X86
159void acpi_early_processor_osc(void);
160#else
161static inline void acpi_early_processor_osc(void) {}
162#endif
163
164/* --------------------------------------------------------------------------
165 Embedded Controller
166 -------------------------------------------------------------------------- */
167
168enum acpi_ec_event_state {
169 EC_EVENT_READY = 0, /* Event work can be submitted */
170 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
171 EC_EVENT_COMPLETE, /* Event work processing has completed */
172};
173
174struct acpi_ec {
175 acpi_handle handle;
176 int gpe;
177 int irq;
178 unsigned long command_addr;
179 unsigned long data_addr;
180 bool global_lock;
181 unsigned long flags;
182 unsigned long reference_count;
183 struct mutex mutex;
184 wait_queue_head_t wait;
185 struct list_head list;
186 struct transaction *curr;
187 spinlock_t lock;
188 struct work_struct work;
189 unsigned long timestamp;
190 enum acpi_ec_event_state event_state;
191 unsigned int events_to_process;
192 unsigned int events_in_progress;
193 unsigned int queries_in_progress;
194 bool busy_polling;
195 unsigned int polling_guard;
196};
197
198extern struct acpi_ec *first_ec;
199
200/* If we find an EC via the ECDT, we need to keep a ptr to its context */
201/* External interfaces use first EC only, so remember */
202typedef int (*acpi_ec_query_func) (void *data);
203
204void acpi_ec_init(void);
205void acpi_ec_ecdt_probe(void);
206void acpi_ec_dsdt_probe(void);
207void acpi_ec_block_transactions(void);
208void acpi_ec_unblock_transactions(void);
209int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
210 acpi_handle handle, acpi_ec_query_func func,
211 void *data);
212void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
213
214#ifdef CONFIG_PM_SLEEP
215void acpi_ec_flush_work(void);
216bool acpi_ec_dispatch_gpe(void);
217#endif
218
219
220/*--------------------------------------------------------------------------
221 Suspend/Resume
222 -------------------------------------------------------------------------- */
223#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
224extern bool acpi_s2idle_wakeup(void);
225extern int acpi_sleep_init(void);
226#else
227static inline bool acpi_s2idle_wakeup(void) { return false; }
228static inline int acpi_sleep_init(void) { return -ENXIO; }
229#endif
230
231#ifdef CONFIG_ACPI_SLEEP
232void acpi_sleep_proc_init(void);
233int suspend_nvs_alloc(void);
234void suspend_nvs_free(void);
235int suspend_nvs_save(void);
236void suspend_nvs_restore(void);
237#else
238static inline void acpi_sleep_proc_init(void) {}
239static inline int suspend_nvs_alloc(void) { return 0; }
240static inline void suspend_nvs_free(void) {}
241static inline int suspend_nvs_save(void) { return 0; }
242static inline void suspend_nvs_restore(void) {}
243#endif
244
245#ifdef CONFIG_X86
246bool force_storage_d3(void);
247#else
248static inline bool force_storage_d3(void)
249{
250 return false;
251}
252#endif
253
254/*--------------------------------------------------------------------------
255 Device properties
256 -------------------------------------------------------------------------- */
257#define ACPI_DT_NAMESPACE_HID "PRP0001"
258
259void acpi_init_properties(struct acpi_device *adev);
260void acpi_free_properties(struct acpi_device *adev);
261
262#ifdef CONFIG_X86
263void acpi_extract_apple_properties(struct acpi_device *adev);
264#else
265static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
266#endif
267
268/*--------------------------------------------------------------------------
269 Watchdog
270 -------------------------------------------------------------------------- */
271
272#ifdef CONFIG_ACPI_WATCHDOG
273void acpi_watchdog_init(void);
274#else
275static inline void acpi_watchdog_init(void) {}
276#endif
277
278#ifdef CONFIG_ACPI_LPIT
279void acpi_init_lpit(void);
280#else
281static inline void acpi_init_lpit(void) { }
282#endif
283
284#endif /* _ACPI_INTERNAL_H_ */