tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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);
26void init_acpi_device_notify(void);
27int acpi_scan_init(void);
28void acpi_pci_root_init(void);
29void acpi_pci_link_init(void);
30void acpi_processor_init(void);
31void acpi_platform_init(void);
32void acpi_pnp_init(void);
33void acpi_int340x_thermal_init(void);
34#ifdef CONFIG_ARM_AMBA
35void acpi_amba_init(void);
36#else
37static inline void acpi_amba_init(void) {}
38#endif
39int acpi_sysfs_init(void);
40void acpi_gpe_apply_masked_gpes(void);
41void acpi_container_init(void);
42void acpi_memory_hotplug_init(void);
43#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
44void pci_ioapic_remove(struct acpi_pci_root *root);
45int acpi_ioapic_remove(struct acpi_pci_root *root);
46#else
47static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
48static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
49#endif
50#ifdef CONFIG_ACPI_DOCK
51void register_dock_dependent_device(struct acpi_device *adev,
52 acpi_handle dshandle);
53int dock_notify(struct acpi_device *adev, u32 event);
54void acpi_dock_add(struct acpi_device *adev);
55#else
56static inline void register_dock_dependent_device(struct acpi_device *adev,
57 acpi_handle dshandle) {}
58static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
59static inline void acpi_dock_add(struct acpi_device *adev) {}
60#endif
61#ifdef CONFIG_X86
62void acpi_cmos_rtc_init(void);
63#else
64static inline void acpi_cmos_rtc_init(void) {}
65#endif
66int acpi_rev_override_setup(char *str);
67
68extern bool acpi_force_hot_remove;
69
70void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
71 const char *name);
72int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
73 const char *hotplug_profile_name);
74void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
75
76#ifdef CONFIG_DEBUG_FS
77extern struct dentry *acpi_debugfs_dir;
78void acpi_debugfs_init(void);
79#else
80static inline void acpi_debugfs_init(void) { return; }
81#endif
82void acpi_lpss_init(void);
83
84void acpi_apd_init(void);
85
86acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
87bool acpi_queue_hotplug_work(struct work_struct *work);
88void acpi_device_hotplug(struct acpi_device *adev, u32 src);
89bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
90
91acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
92void acpi_scan_table_handler(u32 event, void *table, void *context);
93
94/* --------------------------------------------------------------------------
95 Device Node Initialization / Removal
96 -------------------------------------------------------------------------- */
97#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
98 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
99
100extern struct list_head acpi_bus_id_list;
101
102struct acpi_device_bus_id {
103 char bus_id[15];
104 unsigned int instance_no;
105 struct list_head node;
106};
107
108int acpi_device_add(struct acpi_device *device,
109 void (*release)(struct device *));
110void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
111 int type, unsigned long long sta);
112int acpi_device_setup_files(struct acpi_device *dev);
113void acpi_device_remove_files(struct acpi_device *dev);
114void acpi_device_add_finalize(struct acpi_device *device);
115void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
116bool acpi_device_is_present(struct acpi_device *adev);
117bool acpi_device_is_battery(struct acpi_device *adev);
118bool acpi_device_is_first_physical_node(struct acpi_device *adev,
119 const struct device *dev);
120
121/* --------------------------------------------------------------------------
122 Device Matching and Notification
123 -------------------------------------------------------------------------- */
124struct acpi_device *acpi_companion_match(const struct device *dev);
125int __acpi_device_uevent_modalias(struct acpi_device *adev,
126 struct kobj_uevent_env *env);
127
128/* --------------------------------------------------------------------------
129 Power Resource
130 -------------------------------------------------------------------------- */
131int acpi_power_init(void);
132void acpi_power_resources_list_free(struct list_head *list);
133int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
134 struct list_head *list);
135int acpi_add_power_resource(acpi_handle handle);
136void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
137int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
138int acpi_device_sleep_wake(struct acpi_device *dev,
139 int enable, int sleep_state, int dev_state);
140int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
141int acpi_power_on_resources(struct acpi_device *device, int state);
142int acpi_power_transition(struct acpi_device *device, int state);
143
144int acpi_wakeup_device_init(void);
145
146#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
147void acpi_early_processor_set_pdc(void);
148#else
149static inline void acpi_early_processor_set_pdc(void) {}
150#endif
151
152#ifdef CONFIG_X86
153void acpi_early_processor_osc(void);
154#else
155static inline void acpi_early_processor_osc(void) {}
156#endif
157
158/* --------------------------------------------------------------------------
159 Embedded Controller
160 -------------------------------------------------------------------------- */
161struct acpi_ec {
162 acpi_handle handle;
163 unsigned long gpe;
164 unsigned long command_addr;
165 unsigned long data_addr;
166 bool global_lock;
167 unsigned long flags;
168 unsigned long reference_count;
169 struct mutex mutex;
170 wait_queue_head_t wait;
171 struct list_head list;
172 struct transaction *curr;
173 spinlock_t lock;
174 struct work_struct work;
175 unsigned long timestamp;
176 unsigned long nr_pending_queries;
177 bool busy_polling;
178 unsigned int polling_guard;
179};
180
181extern struct acpi_ec *first_ec;
182
183/* If we find an EC via the ECDT, we need to keep a ptr to its context */
184/* External interfaces use first EC only, so remember */
185typedef int (*acpi_ec_query_func) (void *data);
186
187int acpi_ec_init(void);
188int acpi_ec_ecdt_probe(void);
189int acpi_ec_dsdt_probe(void);
190int acpi_ec_ecdt_start(void);
191void acpi_ec_block_transactions(void);
192void acpi_ec_unblock_transactions(void);
193int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
194 acpi_handle handle, acpi_ec_query_func func,
195 void *data);
196void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
197
198
199/*--------------------------------------------------------------------------
200 Suspend/Resume
201 -------------------------------------------------------------------------- */
202#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
203extern int acpi_sleep_init(void);
204#else
205static inline int acpi_sleep_init(void) { return -ENXIO; }
206#endif
207
208#ifdef CONFIG_ACPI_SLEEP
209void acpi_sleep_proc_init(void);
210int suspend_nvs_alloc(void);
211void suspend_nvs_free(void);
212int suspend_nvs_save(void);
213void suspend_nvs_restore(void);
214#else
215static inline void acpi_sleep_proc_init(void) {}
216static inline int suspend_nvs_alloc(void) { return 0; }
217static inline void suspend_nvs_free(void) {}
218static inline int suspend_nvs_save(void) { return 0; }
219static inline void suspend_nvs_restore(void) {}
220#endif
221
222/*--------------------------------------------------------------------------
223 Device properties
224 -------------------------------------------------------------------------- */
225#define ACPI_DT_NAMESPACE_HID "PRP0001"
226
227void acpi_init_properties(struct acpi_device *adev);
228void acpi_free_properties(struct acpi_device *adev);
229
230/*--------------------------------------------------------------------------
231 Watchdog
232 -------------------------------------------------------------------------- */
233
234#ifdef CONFIG_ACPI_WATCHDOG
235void acpi_watchdog_init(void);
236#else
237static inline void acpi_watchdog_init(void) {}
238#endif
239
240#endif /* _ACPI_INTERNAL_H_ */