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
23int early_acpi_osi_init(void);
24int acpi_osi_init(void);
25acpi_status acpi_os_initialize1(void);
26int acpi_scan_init(void);
27#ifdef CONFIG_PCI
28void acpi_pci_root_init(void);
29void acpi_pci_link_init(void);
30#else
31static inline void acpi_pci_root_init(void) {}
32static inline void acpi_pci_link_init(void) {}
33#endif
34void acpi_processor_init(void);
35void acpi_platform_init(void);
36void acpi_pnp_init(void);
37void acpi_int340x_thermal_init(void);
38#ifdef CONFIG_ARM_AMBA
39void acpi_amba_init(void);
40#else
41static inline void acpi_amba_init(void) {}
42#endif
43int acpi_sysfs_init(void);
44void acpi_gpe_apply_masked_gpes(void);
45void acpi_container_init(void);
46void acpi_memory_hotplug_init(void);
47#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
48void pci_ioapic_remove(struct acpi_pci_root *root);
49int acpi_ioapic_remove(struct acpi_pci_root *root);
50#else
51static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
52static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
53#endif
54#ifdef CONFIG_ACPI_DOCK
55void register_dock_dependent_device(struct acpi_device *adev,
56 acpi_handle dshandle);
57int dock_notify(struct acpi_device *adev, u32 event);
58void acpi_dock_add(struct acpi_device *adev);
59#else
60static inline void register_dock_dependent_device(struct acpi_device *adev,
61 acpi_handle dshandle) {}
62static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
63static inline void acpi_dock_add(struct acpi_device *adev) {}
64#endif
65#ifdef CONFIG_X86
66void acpi_cmos_rtc_init(void);
67#else
68static inline void acpi_cmos_rtc_init(void) {}
69#endif
70int acpi_rev_override_setup(char *str);
71
72void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
73 const char *name);
74int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
75 const char *hotplug_profile_name);
76void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
77
78#ifdef CONFIG_DEBUG_FS
79extern struct dentry *acpi_debugfs_dir;
80void acpi_debugfs_init(void);
81#else
82static inline void acpi_debugfs_init(void) { return; }
83#endif
84#ifdef CONFIG_PCI
85void acpi_lpss_init(void);
86#else
87static inline void acpi_lpss_init(void) {}
88#endif
89
90void acpi_apd_init(void);
91
92acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
93bool acpi_queue_hotplug_work(struct work_struct *work);
94void acpi_device_hotplug(struct acpi_device *adev, u32 src);
95bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
96
97acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
98void acpi_scan_table_handler(u32 event, void *table, void *context);
99
100/* --------------------------------------------------------------------------
101 Device Node Initialization / Removal
102 -------------------------------------------------------------------------- */
103#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
104 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
105
106extern struct list_head acpi_bus_id_list;
107
108struct acpi_device_bus_id {
109 char bus_id[15];
110 unsigned int instance_no;
111 struct list_head node;
112};
113
114int acpi_device_add(struct acpi_device *device,
115 void (*release)(struct device *));
116void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
117 int type, unsigned long long sta);
118int acpi_device_setup_files(struct acpi_device *dev);
119void acpi_device_remove_files(struct acpi_device *dev);
120void acpi_device_add_finalize(struct acpi_device *device);
121void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
122bool acpi_device_is_present(const struct acpi_device *adev);
123bool acpi_device_is_battery(struct acpi_device *adev);
124bool acpi_device_is_first_physical_node(struct acpi_device *adev,
125 const struct device *dev);
126int acpi_bus_register_early_device(int type);
127
128/* --------------------------------------------------------------------------
129 Device Matching and Notification
130 -------------------------------------------------------------------------- */
131struct acpi_device *acpi_companion_match(const struct device *dev);
132int __acpi_device_uevent_modalias(struct acpi_device *adev,
133 struct kobj_uevent_env *env);
134
135/* --------------------------------------------------------------------------
136 Power Resource
137 -------------------------------------------------------------------------- */
138int acpi_power_init(void);
139void acpi_power_resources_list_free(struct list_head *list);
140int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
141 struct list_head *list);
142int acpi_add_power_resource(acpi_handle handle);
143void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
144int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
145int acpi_device_sleep_wake(struct acpi_device *dev,
146 int enable, int sleep_state, int dev_state);
147int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
148int acpi_power_on_resources(struct acpi_device *device, int state);
149int acpi_power_transition(struct acpi_device *device, int state);
150
151int acpi_wakeup_device_init(void);
152
153#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
154void acpi_early_processor_set_pdc(void);
155#else
156static inline void acpi_early_processor_set_pdc(void) {}
157#endif
158
159#ifdef CONFIG_X86
160void acpi_early_processor_osc(void);
161#else
162static inline void acpi_early_processor_osc(void) {}
163#endif
164
165/* --------------------------------------------------------------------------
166 Embedded Controller
167 -------------------------------------------------------------------------- */
168struct acpi_ec {
169 acpi_handle handle;
170 u32 gpe;
171 unsigned long command_addr;
172 unsigned long data_addr;
173 bool global_lock;
174 unsigned long flags;
175 unsigned long reference_count;
176 struct mutex mutex;
177 wait_queue_head_t wait;
178 struct list_head list;
179 struct transaction *curr;
180 spinlock_t lock;
181 struct work_struct work;
182 unsigned long timestamp;
183 unsigned long nr_pending_queries;
184 bool busy_polling;
185 unsigned int polling_guard;
186};
187
188extern struct acpi_ec *first_ec;
189
190/* If we find an EC via the ECDT, we need to keep a ptr to its context */
191/* External interfaces use first EC only, so remember */
192typedef int (*acpi_ec_query_func) (void *data);
193
194int acpi_ec_init(void);
195void acpi_ec_ecdt_probe(void);
196void acpi_ec_dsdt_probe(void);
197void acpi_ec_block_transactions(void);
198void acpi_ec_unblock_transactions(void);
199void acpi_ec_mark_gpe_for_wake(void);
200void acpi_ec_set_gpe_wake_mask(u8 action);
201void acpi_ec_dispatch_gpe(void);
202int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
203 acpi_handle handle, acpi_ec_query_func func,
204 void *data);
205void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
206
207#ifdef CONFIG_PM_SLEEP
208void acpi_ec_flush_work(void);
209#endif
210
211
212/*--------------------------------------------------------------------------
213 Suspend/Resume
214 -------------------------------------------------------------------------- */
215#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
216extern bool acpi_s2idle_wakeup(void);
217extern bool acpi_sleep_no_ec_events(void);
218extern int acpi_sleep_init(void);
219#else
220static inline bool acpi_s2idle_wakeup(void) { return false; }
221static inline bool acpi_sleep_no_ec_events(void) { return true; }
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_ */
270