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
16 int early_acpi_osi_init(void);
17 int acpi_osi_init(void);
18 acpi_status acpi_os_initialize1(void);
19 int 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 #ifdef CONFIG_ARM_AMBA
32 void acpi_amba_init(void);
33 #else
acpi_amba_init(void)34 static inline void acpi_amba_init(void) {}
35 #endif
36 int acpi_sysfs_init(void);
37 void acpi_gpe_apply_masked_gpes(void);
38 void acpi_container_init(void);
39 void acpi_memory_hotplug_init(void);
40 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
41 void pci_ioapic_remove(struct acpi_pci_root *root);
42 int acpi_ioapic_remove(struct acpi_pci_root *root);
43 #else
pci_ioapic_remove(struct acpi_pci_root * root)44 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
acpi_ioapic_remove(struct acpi_pci_root * root)45 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
46 #endif
47 #ifdef CONFIG_ACPI_DOCK
48 void register_dock_dependent_device(struct acpi_device *adev,
49 acpi_handle dshandle);
50 int dock_notify(struct acpi_device *adev, u32 event);
51 void acpi_dock_add(struct acpi_device *adev);
52 #else
register_dock_dependent_device(struct acpi_device * adev,acpi_handle dshandle)53 static inline void register_dock_dependent_device(struct acpi_device *adev,
54 acpi_handle dshandle) {}
dock_notify(struct acpi_device * adev,u32 event)55 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
acpi_dock_add(struct acpi_device * adev)56 static inline void acpi_dock_add(struct acpi_device *adev) {}
57 #endif
58 #ifdef CONFIG_X86
59 void acpi_cmos_rtc_init(void);
60 #else
acpi_cmos_rtc_init(void)61 static inline void acpi_cmos_rtc_init(void) {}
62 #endif
63 int acpi_rev_override_setup(char *str);
64
65 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
66 const char *name);
67 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
68 const char *hotplug_profile_name);
69 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
70
71 #ifdef CONFIG_DEBUG_FS
72 extern struct dentry *acpi_debugfs_dir;
73 void acpi_debugfs_init(void);
74 #else
acpi_debugfs_init(void)75 static inline void acpi_debugfs_init(void) { return; }
76 #endif
77 #ifdef CONFIG_PCI
78 void acpi_lpss_init(void);
79 #else
acpi_lpss_init(void)80 static inline void acpi_lpss_init(void) {}
81 #endif
82
83 void acpi_apd_init(void);
84
85 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
86 bool acpi_queue_hotplug_work(struct work_struct *work);
87 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
88 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
89
90 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
91 void 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
99 extern struct list_head acpi_bus_id_list;
100
101 #define ACPI_MAX_DEVICE_INSTANCES 4096
102
103 struct acpi_device_bus_id {
104 const char *bus_id;
105 struct ida instance_ida;
106 struct list_head node;
107 };
108
109 int acpi_device_add(struct acpi_device *device,
110 void (*release)(struct device *));
111 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
112 int type, unsigned long long sta);
113 int acpi_device_setup_files(struct acpi_device *dev);
114 void acpi_device_remove_files(struct acpi_device *dev);
115 void acpi_device_add_finalize(struct acpi_device *device);
116 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
117 bool acpi_device_is_present(const struct acpi_device *adev);
118 bool acpi_device_is_battery(struct acpi_device *adev);
119 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
120 const struct device *dev);
121 int acpi_bus_register_early_device(int type);
122
123 /* --------------------------------------------------------------------------
124 Device Matching and Notification
125 -------------------------------------------------------------------------- */
126 struct acpi_device *acpi_companion_match(const struct device *dev);
127 int __acpi_device_uevent_modalias(struct acpi_device *adev,
128 struct kobj_uevent_env *env);
129
130 /* --------------------------------------------------------------------------
131 Power Resource
132 -------------------------------------------------------------------------- */
133 int acpi_power_init(void);
134 void acpi_power_resources_list_free(struct list_head *list);
135 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
136 struct list_head *list);
137 int acpi_add_power_resource(acpi_handle handle);
138 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
139 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
140 int acpi_device_sleep_wake(struct acpi_device *dev,
141 int enable, int sleep_state, int dev_state);
142 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
143 int acpi_power_on_resources(struct acpi_device *device, int state);
144 int acpi_power_transition(struct acpi_device *device, int state);
145
146 /* --------------------------------------------------------------------------
147 Device Power Management
148 -------------------------------------------------------------------------- */
149 int acpi_device_get_power(struct acpi_device *device, int *state);
150 int acpi_wakeup_device_init(void);
151
152 /* --------------------------------------------------------------------------
153 Processor
154 -------------------------------------------------------------------------- */
155 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
156 void acpi_early_processor_set_pdc(void);
157 #else
acpi_early_processor_set_pdc(void)158 static inline void acpi_early_processor_set_pdc(void) {}
159 #endif
160
161 #ifdef CONFIG_X86
162 void acpi_early_processor_osc(void);
163 #else
acpi_early_processor_osc(void)164 static inline void acpi_early_processor_osc(void) {}
165 #endif
166
167 /* --------------------------------------------------------------------------
168 Embedded Controller
169 -------------------------------------------------------------------------- */
170 struct acpi_ec {
171 acpi_handle handle;
172 u32 gpe;
173 unsigned long command_addr;
174 unsigned long data_addr;
175 bool global_lock;
176 unsigned long flags;
177 unsigned long reference_count;
178 struct mutex mutex;
179 wait_queue_head_t wait;
180 struct list_head list;
181 struct transaction *curr;
182 spinlock_t lock;
183 struct work_struct work;
184 unsigned long timestamp;
185 unsigned long nr_pending_queries;
186 unsigned int events_in_progress;
187 unsigned int queries_in_progress;
188 bool busy_polling;
189 unsigned int polling_guard;
190 };
191
192 extern 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 */
196 typedef int (*acpi_ec_query_func) (void *data);
197
198 int acpi_ec_init(void);
199 void acpi_ec_ecdt_probe(void);
200 void acpi_ec_dsdt_probe(void);
201 void acpi_ec_block_transactions(void);
202 void acpi_ec_unblock_transactions(void);
203 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
204 acpi_handle handle, acpi_ec_query_func func,
205 void *data);
206 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
207
208 #ifdef CONFIG_PM_SLEEP
209 void acpi_ec_flush_work(void);
210 bool acpi_ec_dispatch_gpe(void);
211 #endif
212
213
214 /*--------------------------------------------------------------------------
215 Suspend/Resume
216 -------------------------------------------------------------------------- */
217 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
218 extern bool acpi_s2idle_wakeup(void);
219 extern int acpi_sleep_init(void);
220 #else
acpi_s2idle_wakeup(void)221 static inline bool acpi_s2idle_wakeup(void) { return false; }
acpi_sleep_init(void)222 static inline int acpi_sleep_init(void) { return -ENXIO; }
223 #endif
224
225 #ifdef CONFIG_ACPI_SLEEP
226 void acpi_sleep_proc_init(void);
227 int suspend_nvs_alloc(void);
228 void suspend_nvs_free(void);
229 int suspend_nvs_save(void);
230 void suspend_nvs_restore(void);
231 #else
acpi_sleep_proc_init(void)232 static inline void acpi_sleep_proc_init(void) {}
suspend_nvs_alloc(void)233 static inline int suspend_nvs_alloc(void) { return 0; }
suspend_nvs_free(void)234 static inline void suspend_nvs_free(void) {}
suspend_nvs_save(void)235 static inline int suspend_nvs_save(void) { return 0; }
suspend_nvs_restore(void)236 static inline void suspend_nvs_restore(void) {}
237 #endif
238
239 /*--------------------------------------------------------------------------
240 Device properties
241 -------------------------------------------------------------------------- */
242 #define ACPI_DT_NAMESPACE_HID "PRP0001"
243
244 void acpi_init_properties(struct acpi_device *adev);
245 void acpi_free_properties(struct acpi_device *adev);
246
247 #ifdef CONFIG_X86
248 void acpi_extract_apple_properties(struct acpi_device *adev);
249 #else
acpi_extract_apple_properties(struct acpi_device * adev)250 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
251 #endif
252
253 /*--------------------------------------------------------------------------
254 Watchdog
255 -------------------------------------------------------------------------- */
256
257 #ifdef CONFIG_ACPI_WATCHDOG
258 void acpi_watchdog_init(void);
259 #else
acpi_watchdog_init(void)260 static inline void acpi_watchdog_init(void) {}
261 #endif
262
263 #ifdef CONFIG_ACPI_LPIT
264 void acpi_init_lpit(void);
265 #else
acpi_init_lpit(void)266 static inline void acpi_init_lpit(void) { }
267 #endif
268
269 #endif /* _ACPI_INTERNAL_H_ */
270