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 extern struct acpi_device *acpi_root;
15
16 int early_acpi_osi_init(void);
17 int acpi_osi_init(void);
18 acpi_status acpi_os_initialize1(void);
19 void acpi_scan_init(void);
20 #ifdef CONFIG_PCI
21 void acpi_pci_root_init(void);
22 void acpi_pci_link_init(void);
23 #else
acpi_pci_root_init(void)24 static inline void acpi_pci_root_init(void) {}
acpi_pci_link_init(void)25 static inline void acpi_pci_link_init(void) {}
26 #endif
27 void acpi_processor_init(void);
28 void acpi_platform_init(void);
29 void acpi_pnp_init(void);
30 void acpi_int340x_thermal_init(void);
31 int acpi_sysfs_init(void);
32 void acpi_gpe_apply_masked_gpes(void);
33 void acpi_container_init(void);
34 void acpi_memory_hotplug_init(void);
35 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
36 void pci_ioapic_remove(struct acpi_pci_root *root);
37 int acpi_ioapic_remove(struct acpi_pci_root *root);
38 #else
pci_ioapic_remove(struct acpi_pci_root * root)39 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
acpi_ioapic_remove(struct acpi_pci_root * root)40 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
41 #endif
42 #ifdef CONFIG_ACPI_DOCK
43 void register_dock_dependent_device(struct acpi_device *adev,
44 acpi_handle dshandle);
45 int dock_notify(struct acpi_device *adev, u32 event);
46 void acpi_dock_add(struct acpi_device *adev);
47 #else
register_dock_dependent_device(struct acpi_device * adev,acpi_handle dshandle)48 static inline void register_dock_dependent_device(struct acpi_device *adev,
49 acpi_handle dshandle) {}
dock_notify(struct acpi_device * adev,u32 event)50 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
acpi_dock_add(struct acpi_device * adev)51 static inline void acpi_dock_add(struct acpi_device *adev) {}
52 #endif
53 #ifdef CONFIG_X86
54 void acpi_cmos_rtc_init(void);
55 #else
acpi_cmos_rtc_init(void)56 static inline void acpi_cmos_rtc_init(void) {}
57 #endif
58 int acpi_rev_override_setup(char *str);
59
60 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
61 const char *name);
62 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
63 const char *hotplug_profile_name);
64 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
65
66 #ifdef CONFIG_DEBUG_FS
67 extern struct dentry *acpi_debugfs_dir;
68 void acpi_debugfs_init(void);
69 #else
acpi_debugfs_init(void)70 static inline void acpi_debugfs_init(void) { return; }
71 #endif
72
73 #if defined(CONFIG_X86) && defined(CONFIG_PCI)
74 void acpi_lpss_init(void);
75 #else
acpi_lpss_init(void)76 static inline void acpi_lpss_init(void) {}
77 #endif
78
79 void acpi_apd_init(void);
80
81 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
82 bool acpi_queue_hotplug_work(struct work_struct *work);
83 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
84 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
85
86 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
87 void acpi_scan_table_notify(void);
88
89 int acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
90 int acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
91 int acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
92 int acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
93
94 #ifdef CONFIG_ARM64
95 int acpi_arch_thermal_cpufreq_pctg(void);
96 #else
acpi_arch_thermal_cpufreq_pctg(void)97 static 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
109 extern struct list_head acpi_bus_id_list;
110
111 struct acpi_device_bus_id {
112 const char *bus_id;
113 struct ida instance_ida;
114 struct list_head node;
115 };
116
117 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
118 int type, void (*release)(struct device *));
119 int acpi_tie_acpi_dev(struct acpi_device *adev);
120 int acpi_device_add(struct acpi_device *device);
121 void acpi_device_setup_files(struct acpi_device *dev);
122 void acpi_device_remove_files(struct acpi_device *dev);
123 extern const struct attribute_group *acpi_groups[];
124 void acpi_device_add_finalize(struct acpi_device *device);
125 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
126 bool acpi_device_is_enabled(const struct acpi_device *adev);
127 bool acpi_device_is_present(const struct acpi_device *adev);
128 bool acpi_device_is_battery(struct acpi_device *adev);
129 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
130 const struct device *dev);
131 int acpi_bus_register_early_device(int type);
132
133 /* --------------------------------------------------------------------------
134 Device Matching and Notification
135 -------------------------------------------------------------------------- */
136 const struct acpi_device *acpi_companion_match(const struct device *dev);
137 int __acpi_device_uevent_modalias(const struct acpi_device *adev,
138 struct kobj_uevent_env *env);
139
140 /* --------------------------------------------------------------------------
141 Power Resource
142 -------------------------------------------------------------------------- */
143 void acpi_power_resources_list_free(struct list_head *list);
144 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
145 struct list_head *list);
146 struct acpi_device *acpi_add_power_resource(acpi_handle handle);
147 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
148 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
149 int acpi_device_sleep_wake(struct acpi_device *dev,
150 int enable, int sleep_state, int dev_state);
151 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
152 int acpi_power_on_resources(struct acpi_device *device, int state);
153 int acpi_power_transition(struct acpi_device *device, int state);
154 void acpi_turn_off_unused_power_resources(void);
155
156 /* --------------------------------------------------------------------------
157 Device Power Management
158 -------------------------------------------------------------------------- */
159 int acpi_device_get_power(struct acpi_device *device, int *state);
160 int acpi_wakeup_device_init(void);
161
162 /* --------------------------------------------------------------------------
163 Processor
164 -------------------------------------------------------------------------- */
165 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
166 void acpi_early_processor_control_setup(void);
167 void acpi_early_processor_set_pdc(void);
168 #ifdef CONFIG_X86
169 void acpi_proc_quirk_mwait_check(void);
170 #else
acpi_proc_quirk_mwait_check(void)171 static inline void acpi_proc_quirk_mwait_check(void) {}
172 #endif
173 bool processor_physically_present(acpi_handle handle);
174 #else
acpi_early_processor_control_setup(void)175 static inline void acpi_early_processor_control_setup(void) {}
176 #endif
177
178 /* --------------------------------------------------------------------------
179 Embedded Controller
180 -------------------------------------------------------------------------- */
181
182 enum acpi_ec_event_state {
183 EC_EVENT_READY = 0, /* Event work can be submitted */
184 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
185 EC_EVENT_COMPLETE, /* Event work processing has completed */
186 };
187
188 struct acpi_ec {
189 acpi_handle handle;
190 int gpe;
191 int irq;
192 unsigned long command_addr;
193 unsigned long data_addr;
194 bool global_lock;
195 unsigned long flags;
196 unsigned long reference_count;
197 struct mutex mutex;
198 wait_queue_head_t wait;
199 struct list_head list;
200 struct transaction *curr;
201 spinlock_t lock;
202 struct work_struct work;
203 unsigned long timestamp;
204 enum acpi_ec_event_state event_state;
205 unsigned int events_to_process;
206 unsigned int events_in_progress;
207 unsigned int queries_in_progress;
208 bool busy_polling;
209 unsigned int polling_guard;
210 };
211
212 extern struct acpi_ec *first_ec;
213
214 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
215 /* External interfaces use first EC only, so remember */
216 typedef int (*acpi_ec_query_func) (void *data);
217
218 #ifdef CONFIG_ACPI_EC
219
220 void acpi_ec_init(void);
221 void acpi_ec_ecdt_probe(void);
222 void acpi_ec_dsdt_probe(void);
223 void acpi_ec_block_transactions(void);
224 void acpi_ec_unblock_transactions(void);
225 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
226 acpi_handle handle, acpi_ec_query_func func,
227 void *data);
228 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
229 void acpi_ec_register_opregions(struct acpi_device *adev);
230
231 #ifdef CONFIG_PM_SLEEP
232 void acpi_ec_flush_work(void);
233 bool acpi_ec_dispatch_gpe(void);
234 #endif
235
236 #else
237
acpi_ec_init(void)238 static inline void acpi_ec_init(void) {}
acpi_ec_ecdt_probe(void)239 static inline void acpi_ec_ecdt_probe(void) {}
acpi_ec_dsdt_probe(void)240 static inline void acpi_ec_dsdt_probe(void) {}
acpi_ec_block_transactions(void)241 static inline void acpi_ec_block_transactions(void) {}
acpi_ec_unblock_transactions(void)242 static inline void acpi_ec_unblock_transactions(void) {}
acpi_ec_add_query_handler(struct acpi_ec * ec,u8 query_bit,acpi_handle handle,acpi_ec_query_func func,void * data)243 static inline int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
244 acpi_handle handle, acpi_ec_query_func func,
245 void *data)
246 {
247 return -ENXIO;
248 }
acpi_ec_remove_query_handler(struct acpi_ec * ec,u8 query_bit)249 static inline void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) {}
acpi_ec_register_opregions(struct acpi_device * adev)250 static inline void acpi_ec_register_opregions(struct acpi_device *adev) {}
251
acpi_ec_flush_work(void)252 static inline void acpi_ec_flush_work(void) {}
acpi_ec_dispatch_gpe(void)253 static inline bool acpi_ec_dispatch_gpe(void)
254 {
255 return false;
256 }
257
258 #endif
259
260 /*--------------------------------------------------------------------------
261 Suspend/Resume
262 -------------------------------------------------------------------------- */
263 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
264 extern bool acpi_s2idle_wakeup(void);
265 extern int acpi_sleep_init(void);
266 #else
acpi_s2idle_wakeup(void)267 static inline bool acpi_s2idle_wakeup(void) { return false; }
acpi_sleep_init(void)268 static inline int acpi_sleep_init(void) { return -ENXIO; }
269 #endif
270
271 #ifdef CONFIG_ACPI_SLEEP
272 void acpi_sleep_proc_init(void);
273 int suspend_nvs_alloc(void);
274 void suspend_nvs_free(void);
275 int suspend_nvs_save(void);
276 void suspend_nvs_restore(void);
277 #else
acpi_sleep_proc_init(void)278 static inline void acpi_sleep_proc_init(void) {}
suspend_nvs_alloc(void)279 static inline int suspend_nvs_alloc(void) { return 0; }
suspend_nvs_free(void)280 static inline void suspend_nvs_free(void) {}
suspend_nvs_save(void)281 static inline int suspend_nvs_save(void) { return 0; }
suspend_nvs_restore(void)282 static inline void suspend_nvs_restore(void) {}
283 #endif
284
285 #ifdef CONFIG_X86
286 bool force_storage_d3(void);
287 #else
force_storage_d3(void)288 static inline bool force_storage_d3(void)
289 {
290 return false;
291 }
292 #endif
293
294 /*--------------------------------------------------------------------------
295 Device properties
296 -------------------------------------------------------------------------- */
297 #define ACPI_DT_NAMESPACE_HID "PRP0001"
298
299 void acpi_init_properties(struct acpi_device *adev);
300 void acpi_free_properties(struct acpi_device *adev);
301
302 #ifdef CONFIG_X86
303 void acpi_extract_apple_properties(struct acpi_device *adev);
304 #else
acpi_extract_apple_properties(struct acpi_device * adev)305 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
306 #endif
307
308 /*--------------------------------------------------------------------------
309 Watchdog
310 -------------------------------------------------------------------------- */
311
312 #ifdef CONFIG_ACPI_WATCHDOG
313 void acpi_watchdog_init(void);
314 #else
acpi_watchdog_init(void)315 static inline void acpi_watchdog_init(void) {}
316 #endif
317
318 #ifdef CONFIG_ACPI_LPIT
319 void acpi_init_lpit(void);
320 #else
acpi_init_lpit(void)321 static inline void acpi_init_lpit(void) { }
322 #endif
323
324 /*--------------------------------------------------------------------------
325 ACPI _CRS CSI-2 and MIPI DisCo for Imaging
326 -------------------------------------------------------------------------- */
327
328 void acpi_mipi_check_crs_csi2(acpi_handle handle);
329 void acpi_mipi_scan_crs_csi2(void);
330 void acpi_mipi_init_crs_csi2_swnodes(void);
331 void acpi_mipi_crs_csi2_cleanup(void);
332 #ifdef CONFIG_X86
333 bool acpi_graph_ignore_port(acpi_handle handle);
334 #else
acpi_graph_ignore_port(acpi_handle handle)335 static inline bool acpi_graph_ignore_port(acpi_handle handle) { return false; }
336 #endif
337
338 #endif /* _ACPI_INTERNAL_H_ */
339