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 int early_acpi_osi_init(void);
15 int acpi_osi_init(void);
16 acpi_status acpi_os_initialize1(void);
17 void acpi_scan_init(void);
18 #ifdef CONFIG_PCI
19 void acpi_pci_root_init(void);
20 void acpi_pci_link_init(void);
21 #else
acpi_pci_root_init(void)22 static inline void acpi_pci_root_init(void) {}
acpi_pci_link_init(void)23 static inline void acpi_pci_link_init(void) {}
24 #endif
25 void acpi_processor_init(void);
26 void acpi_platform_init(void);
27 void acpi_pnp_init(void);
28 void acpi_int340x_thermal_init(void);
29 #ifdef CONFIG_ARM_AMBA
30 void acpi_amba_init(void);
31 #else
acpi_amba_init(void)32 static inline void acpi_amba_init(void) {}
33 #endif
34 int acpi_sysfs_init(void);
35 void acpi_gpe_apply_masked_gpes(void);
36 void acpi_container_init(void);
37 void acpi_memory_hotplug_init(void);
38 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
39 void pci_ioapic_remove(struct acpi_pci_root *root);
40 int acpi_ioapic_remove(struct acpi_pci_root *root);
41 #else
pci_ioapic_remove(struct acpi_pci_root * root)42 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
acpi_ioapic_remove(struct acpi_pci_root * root)43 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
44 #endif
45 #ifdef CONFIG_ACPI_DOCK
46 void register_dock_dependent_device(struct acpi_device *adev,
47 acpi_handle dshandle);
48 int dock_notify(struct acpi_device *adev, u32 event);
49 void acpi_dock_add(struct acpi_device *adev);
50 #else
register_dock_dependent_device(struct acpi_device * adev,acpi_handle dshandle)51 static inline void register_dock_dependent_device(struct acpi_device *adev,
52 acpi_handle dshandle) {}
dock_notify(struct acpi_device * adev,u32 event)53 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
acpi_dock_add(struct acpi_device * adev)54 static inline void acpi_dock_add(struct acpi_device *adev) {}
55 #endif
56 #ifdef CONFIG_X86
57 void acpi_cmos_rtc_init(void);
58 #else
acpi_cmos_rtc_init(void)59 static inline void acpi_cmos_rtc_init(void) {}
60 #endif
61 int acpi_rev_override_setup(char *str);
62
63 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
64 const char *name);
65 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
66 const char *hotplug_profile_name);
67 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
68
69 #ifdef CONFIG_DEBUG_FS
70 extern struct dentry *acpi_debugfs_dir;
71 void acpi_debugfs_init(void);
72 #else
acpi_debugfs_init(void)73 static inline void acpi_debugfs_init(void) { return; }
74 #endif
75 #ifdef CONFIG_PCI
76 void acpi_lpss_init(void);
77 #else
acpi_lpss_init(void)78 static inline void acpi_lpss_init(void) {}
79 #endif
80
81 void acpi_apd_init(void);
82
83 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
84 bool acpi_queue_hotplug_work(struct work_struct *work);
85 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
86 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
87
88 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
89 void 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
97 extern struct list_head acpi_bus_id_list;
98
99 struct acpi_device_bus_id {
100 const char *bus_id;
101 struct ida instance_ida;
102 struct list_head node;
103 };
104
105 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
106 int type, void (*release)(struct device *));
107 int acpi_tie_acpi_dev(struct acpi_device *adev);
108 int acpi_device_add(struct acpi_device *device);
109 int acpi_device_setup_files(struct acpi_device *dev);
110 void acpi_device_remove_files(struct acpi_device *dev);
111 void acpi_device_add_finalize(struct acpi_device *device);
112 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
113 bool acpi_device_is_present(const struct acpi_device *adev);
114 bool acpi_device_is_battery(struct acpi_device *adev);
115 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
116 const struct device *dev);
117 int acpi_bus_register_early_device(int type);
118
119 /* --------------------------------------------------------------------------
120 Device Matching and Notification
121 -------------------------------------------------------------------------- */
122 struct acpi_device *acpi_companion_match(const struct device *dev);
123 int __acpi_device_uevent_modalias(struct acpi_device *adev,
124 struct kobj_uevent_env *env);
125
126 /* --------------------------------------------------------------------------
127 Power Resource
128 -------------------------------------------------------------------------- */
129 int acpi_power_init(void);
130 void acpi_power_resources_list_free(struct list_head *list);
131 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
132 struct list_head *list);
133 struct acpi_device *acpi_add_power_resource(acpi_handle handle);
134 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
135 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
136 int acpi_device_sleep_wake(struct acpi_device *dev,
137 int enable, int sleep_state, int dev_state);
138 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
139 int acpi_power_on_resources(struct acpi_device *device, int state);
140 int acpi_power_transition(struct acpi_device *device, int state);
141 void acpi_turn_off_unused_power_resources(void);
142
143 /* --------------------------------------------------------------------------
144 Device Power Management
145 -------------------------------------------------------------------------- */
146 int acpi_device_get_power(struct acpi_device *device, int *state);
147 int acpi_wakeup_device_init(void);
148
149 /* --------------------------------------------------------------------------
150 Processor
151 -------------------------------------------------------------------------- */
152 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
153 void acpi_early_processor_set_pdc(void);
154 #else
acpi_early_processor_set_pdc(void)155 static inline void acpi_early_processor_set_pdc(void) {}
156 #endif
157
158 #ifdef CONFIG_X86
159 void acpi_early_processor_osc(void);
160 #else
acpi_early_processor_osc(void)161 static inline void acpi_early_processor_osc(void) {}
162 #endif
163
164 /* --------------------------------------------------------------------------
165 Embedded Controller
166 -------------------------------------------------------------------------- */
167
168 enum 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
174 struct 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
198 extern 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 */
202 typedef int (*acpi_ec_query_func) (void *data);
203
204 void acpi_ec_init(void);
205 void acpi_ec_ecdt_probe(void);
206 void acpi_ec_dsdt_probe(void);
207 void acpi_ec_block_transactions(void);
208 void acpi_ec_unblock_transactions(void);
209 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
210 acpi_handle handle, acpi_ec_query_func func,
211 void *data);
212 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
213
214 #ifdef CONFIG_PM_SLEEP
215 void acpi_ec_flush_work(void);
216 bool acpi_ec_dispatch_gpe(void);
217 #endif
218
219
220 /*--------------------------------------------------------------------------
221 Suspend/Resume
222 -------------------------------------------------------------------------- */
223 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
224 extern bool acpi_s2idle_wakeup(void);
225 extern int acpi_sleep_init(void);
226 #else
acpi_s2idle_wakeup(void)227 static inline bool acpi_s2idle_wakeup(void) { return false; }
acpi_sleep_init(void)228 static inline int acpi_sleep_init(void) { return -ENXIO; }
229 #endif
230
231 #ifdef CONFIG_ACPI_SLEEP
232 void acpi_sleep_proc_init(void);
233 int suspend_nvs_alloc(void);
234 void suspend_nvs_free(void);
235 int suspend_nvs_save(void);
236 void suspend_nvs_restore(void);
237 #else
acpi_sleep_proc_init(void)238 static inline void acpi_sleep_proc_init(void) {}
suspend_nvs_alloc(void)239 static inline int suspend_nvs_alloc(void) { return 0; }
suspend_nvs_free(void)240 static inline void suspend_nvs_free(void) {}
suspend_nvs_save(void)241 static inline int suspend_nvs_save(void) { return 0; }
suspend_nvs_restore(void)242 static inline void suspend_nvs_restore(void) {}
243 #endif
244
245 #ifdef CONFIG_X86
246 bool force_storage_d3(void);
247 #else
force_storage_d3(void)248 static 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
259 void acpi_init_properties(struct acpi_device *adev);
260 void acpi_free_properties(struct acpi_device *adev);
261
262 #ifdef CONFIG_X86
263 void acpi_extract_apple_properties(struct acpi_device *adev);
264 #else
acpi_extract_apple_properties(struct acpi_device * adev)265 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
266 #endif
267
268 /*--------------------------------------------------------------------------
269 Watchdog
270 -------------------------------------------------------------------------- */
271
272 #ifdef CONFIG_ACPI_WATCHDOG
273 void acpi_watchdog_init(void);
274 #else
acpi_watchdog_init(void)275 static inline void acpi_watchdog_init(void) {}
276 #endif
277
278 #ifdef CONFIG_ACPI_LPIT
279 void acpi_init_lpit(void);
280 #else
acpi_init_lpit(void)281 static inline void acpi_init_lpit(void) { }
282 #endif
283
284 #endif /* _ACPI_INTERNAL_H_ */
285