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
14extern struct acpi_device *acpi_root;
15
16int early_acpi_osi_init(void);
17int acpi_osi_init(void);
18acpi_status acpi_os_initialize1(void);
19void 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);
31int acpi_sysfs_init(void);
32void acpi_gpe_apply_masked_gpes(void);
33void acpi_container_init(void);
34void acpi_memory_hotplug_init(void);
35#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
36void pci_ioapic_remove(struct acpi_pci_root *root);
37int acpi_ioapic_remove(struct acpi_pci_root *root);
38#else
39static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
40static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
41#endif
42#ifdef CONFIG_ACPI_DOCK
43void register_dock_dependent_device(struct acpi_device *adev,
44 acpi_handle dshandle);
45int dock_notify(struct acpi_device *adev, u32 event);
46void acpi_dock_add(struct acpi_device *adev);
47#else
48static inline void register_dock_dependent_device(struct acpi_device *adev,
49 acpi_handle dshandle) {}
50static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
51static inline void acpi_dock_add(struct acpi_device *adev) {}
52#endif
53#ifdef CONFIG_X86
54void acpi_cmos_rtc_init(void);
55#else
56static inline void acpi_cmos_rtc_init(void) {}
57#endif
58int acpi_rev_override_setup(char *str);
59
60void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
61 const char *name);
62int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
63 const char *hotplug_profile_name);
64void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
65
66#ifdef CONFIG_DEBUG_FS
67extern struct dentry *acpi_debugfs_dir;
68void acpi_debugfs_init(void);
69#else
70static inline void acpi_debugfs_init(void) { return; }
71#endif
72
73#if defined(CONFIG_X86) && defined(CONFIG_PCI)
74void acpi_lpss_init(void);
75#else
76static inline void acpi_lpss_init(void) {}
77#endif
78
79void acpi_apd_init(void);
80
81acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
82bool acpi_queue_hotplug_work(struct work_struct *work);
83void acpi_device_hotplug(struct acpi_device *adev, u32 src);
84bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
85
86acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
87void acpi_scan_table_notify(void);
88
89int acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
90int acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
91int acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
92int acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
93
94#ifdef CONFIG_ARM64
95int acpi_arch_thermal_cpufreq_pctg(void);
96#else
97static inline int acpi_arch_thermal_cpufreq_pctg(void)
98{
99 return 0;
100}
101#endif
102
103/* --------------------------------------------------------------------------
104 Device Node Initialization / Removal
105 -------------------------------------------------------------------------- */
106#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
107 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
108
109extern struct list_head acpi_bus_id_list;
110
111struct acpi_device_bus_id {
112 const char *bus_id;
113 struct ida instance_ida;
114 struct list_head node;
115};
116
117void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
118 int type, void (*release)(struct device *));
119int acpi_tie_acpi_dev(struct acpi_device *adev);
120int acpi_device_add(struct acpi_device *device);
121void acpi_device_setup_files(struct acpi_device *dev);
122void acpi_device_remove_files(struct acpi_device *dev);
123extern const struct attribute_group *acpi_groups[];
124void acpi_device_add_finalize(struct acpi_device *device);
125void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
126bool acpi_device_is_enabled(const struct acpi_device *adev);
127bool acpi_device_is_present(const struct acpi_device *adev);
128bool acpi_device_is_battery(struct acpi_device *adev);
129bool acpi_device_is_first_physical_node(struct acpi_device *adev,
130 const struct device *dev);
131int acpi_bus_register_early_device(int type);
132
133/* --------------------------------------------------------------------------
134 Device Matching and Notification
135 -------------------------------------------------------------------------- */
136const struct acpi_device *acpi_companion_match(const struct device *dev);
137int __acpi_device_uevent_modalias(const struct acpi_device *adev,
138 struct kobj_uevent_env *env);
139
140/* --------------------------------------------------------------------------
141 Power Resource
142 -------------------------------------------------------------------------- */
143void acpi_power_resources_init(void);
144void acpi_power_resources_list_free(struct list_head *list);
145int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
146 struct list_head *list);
147struct acpi_device *acpi_add_power_resource(acpi_handle handle);
148void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
149int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
150int acpi_device_sleep_wake(struct acpi_device *dev,
151 int enable, int sleep_state, int dev_state);
152int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
153int acpi_power_on_resources(struct acpi_device *device, int state);
154int acpi_power_transition(struct acpi_device *device, int state);
155void acpi_turn_off_unused_power_resources(void);
156
157/* --------------------------------------------------------------------------
158 Device Power Management
159 -------------------------------------------------------------------------- */
160int acpi_device_get_power(struct acpi_device *device, int *state);
161int acpi_wakeup_device_init(void);
162
163/* --------------------------------------------------------------------------
164 Processor
165 -------------------------------------------------------------------------- */
166#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
167void acpi_early_processor_control_setup(void);
168void acpi_early_processor_set_pdc(void);
169#ifdef CONFIG_X86
170void acpi_proc_quirk_mwait_check(void);
171#else
172static inline void acpi_proc_quirk_mwait_check(void) {}
173#endif
174bool processor_physically_present(acpi_handle handle);
175#else
176static inline void acpi_early_processor_control_setup(void) {}
177#endif
178
179#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
180void acpi_idle_rescan_dead_smt_siblings(void);
181#else
182static inline void acpi_idle_rescan_dead_smt_siblings(void) {}
183#endif
184
185/* --------------------------------------------------------------------------
186 Embedded Controller
187 -------------------------------------------------------------------------- */
188
189enum acpi_ec_event_state {
190 EC_EVENT_READY = 0, /* Event work can be submitted */
191 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
192 EC_EVENT_COMPLETE, /* Event work processing has completed */
193};
194
195struct acpi_ec {
196 acpi_handle handle;
197 int gpe;
198 int irq;
199 unsigned long command_addr;
200 unsigned long data_addr;
201 bool global_lock;
202 unsigned long flags;
203 unsigned long reference_count;
204 struct mutex mutex;
205 wait_queue_head_t wait;
206 struct list_head list;
207 struct transaction *curr;
208 spinlock_t lock;
209 struct work_struct work;
210 unsigned long timestamp;
211 enum acpi_ec_event_state event_state;
212 unsigned int events_to_process;
213 unsigned int events_in_progress;
214 unsigned int queries_in_progress;
215 bool busy_polling;
216 unsigned int polling_guard;
217};
218
219extern struct acpi_ec *first_ec;
220
221/* If we find an EC via the ECDT, we need to keep a ptr to its context */
222/* External interfaces use first EC only, so remember */
223typedef int (*acpi_ec_query_func) (void *data);
224
225#ifdef CONFIG_ACPI_EC
226
227void acpi_ec_init(void);
228void acpi_ec_ecdt_probe(void);
229void acpi_ec_dsdt_probe(void);
230void acpi_ec_block_transactions(void);
231void acpi_ec_unblock_transactions(void);
232int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
233 acpi_handle handle, acpi_ec_query_func func,
234 void *data);
235void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
236void acpi_ec_register_opregions(struct acpi_device *adev);
237
238#ifdef CONFIG_PM_SLEEP
239void acpi_ec_flush_work(void);
240bool acpi_ec_dispatch_gpe(void);
241#endif
242
243#else
244
245static inline void acpi_ec_init(void) {}
246static inline void acpi_ec_ecdt_probe(void) {}
247static inline void acpi_ec_dsdt_probe(void) {}
248static inline void acpi_ec_block_transactions(void) {}
249static inline void acpi_ec_unblock_transactions(void) {}
250static inline int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
251 acpi_handle handle, acpi_ec_query_func func,
252 void *data)
253{
254 return -ENXIO;
255}
256static inline void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) {}
257static inline void acpi_ec_register_opregions(struct acpi_device *adev) {}
258
259static inline void acpi_ec_flush_work(void) {}
260static inline bool acpi_ec_dispatch_gpe(void)
261{
262 return false;
263}
264
265#endif
266
267/*--------------------------------------------------------------------------
268 Suspend/Resume
269 -------------------------------------------------------------------------- */
270#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
271extern bool acpi_s2idle_wakeup(void);
272extern int acpi_sleep_init(void);
273#else
274static inline bool acpi_s2idle_wakeup(void) { return false; }
275static inline int acpi_sleep_init(void) { return -ENXIO; }
276#endif
277
278#ifdef CONFIG_ACPI_SLEEP
279void acpi_sleep_proc_init(void);
280int suspend_nvs_alloc(void);
281void suspend_nvs_free(void);
282int suspend_nvs_save(void);
283void suspend_nvs_restore(void);
284#else
285static inline void acpi_sleep_proc_init(void) {}
286static inline int suspend_nvs_alloc(void) { return 0; }
287static inline void suspend_nvs_free(void) {}
288static inline int suspend_nvs_save(void) { return 0; }
289static inline void suspend_nvs_restore(void) {}
290#endif
291
292#ifdef CONFIG_X86
293bool force_storage_d3(void);
294#else
295static inline bool force_storage_d3(void)
296{
297 return false;
298}
299#endif
300
301/*--------------------------------------------------------------------------
302 Device properties
303 -------------------------------------------------------------------------- */
304#define ACPI_DT_NAMESPACE_HID "PRP0001"
305
306void acpi_init_properties(struct acpi_device *adev);
307void acpi_free_properties(struct acpi_device *adev);
308
309#ifdef CONFIG_X86
310void acpi_extract_apple_properties(struct acpi_device *adev);
311#else
312static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
313#endif
314
315/*--------------------------------------------------------------------------
316 Watchdog
317 -------------------------------------------------------------------------- */
318
319#ifdef CONFIG_ACPI_WATCHDOG
320void acpi_watchdog_init(void);
321#else
322static inline void acpi_watchdog_init(void) {}
323#endif
324
325#ifdef CONFIG_ACPI_LPIT
326void acpi_init_lpit(void);
327#else
328static inline void acpi_init_lpit(void) { }
329#endif
330
331/*--------------------------------------------------------------------------
332 ACPI _CRS CSI-2 and MIPI DisCo for Imaging
333 -------------------------------------------------------------------------- */
334
335void acpi_mipi_check_crs_csi2(acpi_handle handle);
336void acpi_mipi_scan_crs_csi2(void);
337void acpi_mipi_init_crs_csi2_swnodes(void);
338void acpi_mipi_crs_csi2_cleanup(void);
339#ifdef CONFIG_X86
340bool acpi_graph_ignore_port(acpi_handle handle);
341#else
342static inline bool acpi_graph_ignore_port(acpi_handle handle) { return false; }
343#endif
344
345#endif /* _ACPI_INTERNAL_H_ */
346