xref: /openbmc/linux/drivers/acpi/internal.h (revision 8bd1369b)
1 /*
2  * acpi/internal.h
3  * For use by Linux/ACPI infrastructure, not drivers
4  *
5  * Copyright (c) 2009, Intel Corporation.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms and conditions of the GNU General Public License,
9  * version 2, as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  */
17 
18 #ifndef _ACPI_INTERNAL_H_
19 #define _ACPI_INTERNAL_H_
20 
21 #define PREFIX "ACPI: "
22 
23 int early_acpi_osi_init(void);
24 int acpi_osi_init(void);
25 acpi_status acpi_os_initialize1(void);
26 void init_acpi_device_notify(void);
27 int acpi_scan_init(void);
28 void acpi_pci_root_init(void);
29 void acpi_pci_link_init(void);
30 void acpi_processor_init(void);
31 void acpi_platform_init(void);
32 void acpi_pnp_init(void);
33 void acpi_int340x_thermal_init(void);
34 #ifdef CONFIG_ARM_AMBA
35 void acpi_amba_init(void);
36 #else
37 static inline void acpi_amba_init(void) {}
38 #endif
39 int acpi_sysfs_init(void);
40 void acpi_gpe_apply_masked_gpes(void);
41 void acpi_container_init(void);
42 void acpi_memory_hotplug_init(void);
43 #ifdef	CONFIG_ACPI_HOTPLUG_IOAPIC
44 void pci_ioapic_remove(struct acpi_pci_root *root);
45 int acpi_ioapic_remove(struct acpi_pci_root *root);
46 #else
47 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
48 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
49 #endif
50 #ifdef CONFIG_ACPI_DOCK
51 void register_dock_dependent_device(struct acpi_device *adev,
52 				    acpi_handle dshandle);
53 int dock_notify(struct acpi_device *adev, u32 event);
54 void acpi_dock_add(struct acpi_device *adev);
55 #else
56 static inline void register_dock_dependent_device(struct acpi_device *adev,
57 						  acpi_handle dshandle) {}
58 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
59 static inline void acpi_dock_add(struct acpi_device *adev) {}
60 #endif
61 #ifdef CONFIG_X86
62 void acpi_cmos_rtc_init(void);
63 #else
64 static inline void acpi_cmos_rtc_init(void) {}
65 #endif
66 int acpi_rev_override_setup(char *str);
67 
68 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
69 				    const char *name);
70 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
71 				       const char *hotplug_profile_name);
72 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
73 
74 #ifdef CONFIG_DEBUG_FS
75 extern struct dentry *acpi_debugfs_dir;
76 void acpi_debugfs_init(void);
77 #else
78 static inline void acpi_debugfs_init(void) { return; }
79 #endif
80 void acpi_lpss_init(void);
81 
82 void acpi_apd_init(void);
83 
84 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
85 bool acpi_queue_hotplug_work(struct work_struct *work);
86 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
87 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
88 
89 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
90 void acpi_scan_table_handler(u32 event, void *table, void *context);
91 
92 /* --------------------------------------------------------------------------
93                      Device Node Initialization / Removal
94    -------------------------------------------------------------------------- */
95 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
96 			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
97 
98 extern struct list_head acpi_bus_id_list;
99 
100 struct acpi_device_bus_id {
101 	char bus_id[15];
102 	unsigned int instance_no;
103 	struct list_head node;
104 };
105 
106 int acpi_device_add(struct acpi_device *device,
107 		    void (*release)(struct device *));
108 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
109 			     int type, unsigned long long sta);
110 int acpi_device_setup_files(struct acpi_device *dev);
111 void acpi_device_remove_files(struct acpi_device *dev);
112 void acpi_device_add_finalize(struct acpi_device *device);
113 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
114 bool acpi_device_is_present(const struct acpi_device *adev);
115 bool acpi_device_is_battery(struct acpi_device *adev);
116 bool acpi_device_is_first_physical_node(struct acpi_device *adev,
117 					const struct device *dev);
118 int acpi_bus_register_early_device(int type);
119 
120 /* --------------------------------------------------------------------------
121                      Device Matching and Notification
122    -------------------------------------------------------------------------- */
123 struct acpi_device *acpi_companion_match(const struct device *dev);
124 int __acpi_device_uevent_modalias(struct acpi_device *adev,
125 				  struct kobj_uevent_env *env);
126 
127 /* --------------------------------------------------------------------------
128                                   Power Resource
129    -------------------------------------------------------------------------- */
130 int acpi_power_init(void);
131 void acpi_power_resources_list_free(struct list_head *list);
132 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
133 				 struct list_head *list);
134 int acpi_add_power_resource(acpi_handle handle);
135 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
136 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
137 int acpi_device_sleep_wake(struct acpi_device *dev,
138                            int enable, int sleep_state, int dev_state);
139 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
140 int acpi_power_on_resources(struct acpi_device *device, int state);
141 int acpi_power_transition(struct acpi_device *device, int state);
142 
143 int acpi_wakeup_device_init(void);
144 
145 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
146 void acpi_early_processor_set_pdc(void);
147 #else
148 static inline void acpi_early_processor_set_pdc(void) {}
149 #endif
150 
151 #ifdef CONFIG_X86
152 void acpi_early_processor_osc(void);
153 #else
154 static inline void acpi_early_processor_osc(void) {}
155 #endif
156 
157 /* --------------------------------------------------------------------------
158                                   Embedded Controller
159    -------------------------------------------------------------------------- */
160 struct acpi_ec {
161 	acpi_handle handle;
162 	u32 gpe;
163 	unsigned long command_addr;
164 	unsigned long data_addr;
165 	bool global_lock;
166 	unsigned long flags;
167 	unsigned long reference_count;
168 	struct mutex mutex;
169 	wait_queue_head_t wait;
170 	struct list_head list;
171 	struct transaction *curr;
172 	spinlock_t lock;
173 	struct work_struct work;
174 	unsigned long timestamp;
175 	unsigned long nr_pending_queries;
176 	bool busy_polling;
177 	unsigned int polling_guard;
178 };
179 
180 extern struct acpi_ec *first_ec;
181 
182 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
183 /* External interfaces use first EC only, so remember */
184 typedef int (*acpi_ec_query_func) (void *data);
185 
186 int acpi_ec_init(void);
187 int acpi_ec_ecdt_probe(void);
188 int acpi_ec_dsdt_probe(void);
189 void acpi_ec_block_transactions(void);
190 void acpi_ec_unblock_transactions(void);
191 void acpi_ec_dispatch_gpe(void);
192 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
193 			      acpi_handle handle, acpi_ec_query_func func,
194 			      void *data);
195 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
196 
197 #ifdef CONFIG_PM_SLEEP
198 void acpi_ec_flush_work(void);
199 #endif
200 
201 
202 /*--------------------------------------------------------------------------
203                                   Suspend/Resume
204   -------------------------------------------------------------------------- */
205 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
206 extern bool acpi_s2idle_wakeup(void);
207 extern bool acpi_sleep_no_ec_events(void);
208 extern int acpi_sleep_init(void);
209 #else
210 static inline bool acpi_s2idle_wakeup(void) { return false; }
211 static inline bool acpi_sleep_no_ec_events(void) { return true; }
212 static inline int acpi_sleep_init(void) { return -ENXIO; }
213 #endif
214 
215 #ifdef CONFIG_ACPI_SLEEP
216 void acpi_sleep_proc_init(void);
217 int suspend_nvs_alloc(void);
218 void suspend_nvs_free(void);
219 int suspend_nvs_save(void);
220 void suspend_nvs_restore(void);
221 #else
222 static inline void acpi_sleep_proc_init(void) {}
223 static inline int suspend_nvs_alloc(void) { return 0; }
224 static inline void suspend_nvs_free(void) {}
225 static inline int suspend_nvs_save(void) { return 0; }
226 static inline void suspend_nvs_restore(void) {}
227 #endif
228 
229 /*--------------------------------------------------------------------------
230 				Device properties
231   -------------------------------------------------------------------------- */
232 #define ACPI_DT_NAMESPACE_HID	"PRP0001"
233 
234 void acpi_init_properties(struct acpi_device *adev);
235 void acpi_free_properties(struct acpi_device *adev);
236 
237 #ifdef CONFIG_X86
238 void acpi_extract_apple_properties(struct acpi_device *adev);
239 #else
240 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
241 #endif
242 
243 /*--------------------------------------------------------------------------
244 				Watchdog
245   -------------------------------------------------------------------------- */
246 
247 #ifdef CONFIG_ACPI_WATCHDOG
248 void acpi_watchdog_init(void);
249 #else
250 static inline void acpi_watchdog_init(void) {}
251 #endif
252 
253 #ifdef CONFIG_ACPI_LPIT
254 void acpi_init_lpit(void);
255 #else
256 static inline void acpi_init_lpit(void) { }
257 #endif
258 
259 #endif /* _ACPI_INTERNAL_H_ */
260