tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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,
113 struct acpi_device_info *info);
114int acpi_device_setup_files(struct acpi_device *dev);
115void acpi_device_remove_files(struct acpi_device *dev);
116void acpi_device_add_finalize(struct acpi_device *device);
117void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
118bool acpi_device_is_present(const struct acpi_device *adev);
119bool acpi_device_is_battery(struct acpi_device *adev);
120bool acpi_device_is_first_physical_node(struct acpi_device *adev,
121 const struct device *dev);
122int acpi_bus_register_early_device(int type);
123
124/* --------------------------------------------------------------------------
125 Device Matching and Notification
126 -------------------------------------------------------------------------- */
127struct acpi_device *acpi_companion_match(const struct device *dev);
128int __acpi_device_uevent_modalias(struct acpi_device *adev,
129 struct kobj_uevent_env *env);
130
131/* --------------------------------------------------------------------------
132 Power Resource
133 -------------------------------------------------------------------------- */
134int acpi_power_init(void);
135void acpi_power_resources_list_free(struct list_head *list);
136int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
137 struct list_head *list);
138int acpi_add_power_resource(acpi_handle handle);
139void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
140int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
141int acpi_device_sleep_wake(struct acpi_device *dev,
142 int enable, int sleep_state, int dev_state);
143int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
144int acpi_power_on_resources(struct acpi_device *device, int state);
145int acpi_power_transition(struct acpi_device *device, int state);
146
147/* --------------------------------------------------------------------------
148 Device Power Management
149 -------------------------------------------------------------------------- */
150int acpi_device_get_power(struct acpi_device *device, int *state);
151int acpi_wakeup_device_init(void);
152
153/* --------------------------------------------------------------------------
154 Processor
155 -------------------------------------------------------------------------- */
156#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
157void acpi_early_processor_set_pdc(void);
158#else
159static inline void acpi_early_processor_set_pdc(void) {}
160#endif
161
162#ifdef CONFIG_X86
163void acpi_early_processor_osc(void);
164#else
165static inline void acpi_early_processor_osc(void) {}
166#endif
167
168/* --------------------------------------------------------------------------
169 Embedded Controller
170 -------------------------------------------------------------------------- */
171struct acpi_ec {
172 acpi_handle handle;
173 int gpe;
174 int irq;
175 unsigned long command_addr;
176 unsigned long data_addr;
177 bool global_lock;
178 unsigned long flags;
179 unsigned long reference_count;
180 struct mutex mutex;
181 wait_queue_head_t wait;
182 struct list_head list;
183 struct transaction *curr;
184 spinlock_t lock;
185 struct work_struct work;
186 unsigned long timestamp;
187 unsigned long nr_pending_queries;
188 bool busy_polling;
189 unsigned int polling_guard;
190};
191
192extern struct acpi_ec *first_ec;
193
194/* If we find an EC via the ECDT, we need to keep a ptr to its context */
195/* External interfaces use first EC only, so remember */
196typedef int (*acpi_ec_query_func) (void *data);
197
198void acpi_ec_init(void);
199void acpi_ec_ecdt_probe(void);
200void acpi_ec_dsdt_probe(void);
201void acpi_ec_block_transactions(void);
202void acpi_ec_unblock_transactions(void);
203int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
204 acpi_handle handle, acpi_ec_query_func func,
205 void *data);
206void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
207
208#ifdef CONFIG_PM_SLEEP
209void acpi_ec_flush_work(void);
210bool acpi_ec_dispatch_gpe(void);
211#endif
212
213
214/*--------------------------------------------------------------------------
215 Suspend/Resume
216 -------------------------------------------------------------------------- */
217#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
218extern bool acpi_s2idle_wakeup(void);
219extern int acpi_sleep_init(void);
220#else
221static inline bool acpi_s2idle_wakeup(void) { return false; }
222static inline int acpi_sleep_init(void) { return -ENXIO; }
223#endif
224
225#ifdef CONFIG_ACPI_SLEEP
226void acpi_sleep_proc_init(void);
227int suspend_nvs_alloc(void);
228void suspend_nvs_free(void);
229int suspend_nvs_save(void);
230void suspend_nvs_restore(void);
231#else
232static inline void acpi_sleep_proc_init(void) {}
233static inline int suspend_nvs_alloc(void) { return 0; }
234static inline void suspend_nvs_free(void) {}
235static inline int suspend_nvs_save(void) { return 0; }
236static inline void suspend_nvs_restore(void) {}
237#endif
238
239/*--------------------------------------------------------------------------
240 Device properties
241 -------------------------------------------------------------------------- */
242#define ACPI_DT_NAMESPACE_HID "PRP0001"
243
244void acpi_init_properties(struct acpi_device *adev);
245void acpi_free_properties(struct acpi_device *adev);
246
247#ifdef CONFIG_X86
248void acpi_extract_apple_properties(struct acpi_device *adev);
249#else
250static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
251#endif
252
253/*--------------------------------------------------------------------------
254 Watchdog
255 -------------------------------------------------------------------------- */
256
257#ifdef CONFIG_ACPI_WATCHDOG
258void acpi_watchdog_init(void);
259#else
260static inline void acpi_watchdog_init(void) {}
261#endif
262
263#ifdef CONFIG_ACPI_LPIT
264void acpi_init_lpit(void);
265#else
266static inline void acpi_init_lpit(void) { }
267#endif
268
269#endif /* _ACPI_INTERNAL_H_ */