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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 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21#ifndef _ACPI_INTERNAL_H_
22#define _ACPI_INTERNAL_H_
23
24#define PREFIX "ACPI: "
25
26int init_acpi_device_notify(void);
27int acpi_scan_init(void);
28int acpi_sysfs_init(void);
29
30#ifdef CONFIG_DEBUG_FS
31extern struct dentry *acpi_debugfs_dir;
32int acpi_debugfs_init(void);
33#else
34static inline void acpi_debugfs_init(void) { return; }
35#endif
36
37/* --------------------------------------------------------------------------
38 Power Resource
39 -------------------------------------------------------------------------- */
40int acpi_power_init(void);
41int acpi_device_sleep_wake(struct acpi_device *dev,
42 int enable, int sleep_state, int dev_state);
43int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
44int acpi_power_on_resources(struct acpi_device *device, int state);
45int acpi_power_transition(struct acpi_device *device, int state);
46int acpi_bus_init_power(struct acpi_device *device);
47
48int acpi_wakeup_device_init(void);
49void acpi_early_processor_set_pdc(void);
50
51/* --------------------------------------------------------------------------
52 Embedded Controller
53 -------------------------------------------------------------------------- */
54struct acpi_ec {
55 acpi_handle handle;
56 unsigned long gpe;
57 unsigned long command_addr;
58 unsigned long data_addr;
59 unsigned long global_lock;
60 unsigned long flags;
61 struct mutex lock;
62 wait_queue_head_t wait;
63 struct list_head list;
64 struct transaction *curr;
65 spinlock_t curr_lock;
66};
67
68extern struct acpi_ec *first_ec;
69
70int acpi_ec_init(void);
71int acpi_ec_ecdt_probe(void);
72int acpi_boot_ec_enable(void);
73void acpi_ec_block_transactions(void);
74void acpi_ec_unblock_transactions(void);
75void acpi_ec_unblock_transactions_early(void);
76
77/*--------------------------------------------------------------------------
78 Suspend/Resume
79 -------------------------------------------------------------------------- */
80extern int acpi_sleep_init(void);
81
82#ifdef CONFIG_ACPI_SLEEP
83int acpi_sleep_proc_init(void);
84int suspend_nvs_alloc(void);
85void suspend_nvs_free(void);
86int suspend_nvs_save(void);
87void suspend_nvs_restore(void);
88#else
89static inline int acpi_sleep_proc_init(void) { return 0; }
90static inline int suspend_nvs_alloc(void) { return 0; }
91static inline void suspend_nvs_free(void) {}
92static inline int suspend_nvs_save(void) { return 0; }
93static inline void suspend_nvs_restore(void) {}
94#endif
95
96#endif /* _ACPI_INTERNAL_H_ */
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
14int early_acpi_osi_init(void);
15int acpi_osi_init(void);
16acpi_status acpi_os_initialize1(void);
17int acpi_scan_init(void);
18#ifdef CONFIG_PCI
19void acpi_pci_root_init(void);
20void acpi_pci_link_init(void);
21#else
22static inline void acpi_pci_root_init(void) {}
23static inline void acpi_pci_link_init(void) {}
24#endif
25void acpi_processor_init(void);
26void acpi_platform_init(void);
27void acpi_pnp_init(void);
28void acpi_int340x_thermal_init(void);
29#ifdef CONFIG_ARM_AMBA
30void acpi_amba_init(void);
31#else
32static inline void acpi_amba_init(void) {}
33#endif
34int acpi_sysfs_init(void);
35void acpi_gpe_apply_masked_gpes(void);
36void acpi_container_init(void);
37void acpi_memory_hotplug_init(void);
38#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
39void pci_ioapic_remove(struct acpi_pci_root *root);
40int acpi_ioapic_remove(struct acpi_pci_root *root);
41#else
42static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
43static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
44#endif
45#ifdef CONFIG_ACPI_DOCK
46void register_dock_dependent_device(struct acpi_device *adev,
47 acpi_handle dshandle);
48int dock_notify(struct acpi_device *adev, u32 event);
49void acpi_dock_add(struct acpi_device *adev);
50#else
51static inline void register_dock_dependent_device(struct acpi_device *adev,
52 acpi_handle dshandle) {}
53static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
54static inline void acpi_dock_add(struct acpi_device *adev) {}
55#endif
56#ifdef CONFIG_X86
57void acpi_cmos_rtc_init(void);
58#else
59static inline void acpi_cmos_rtc_init(void) {}
60#endif
61int acpi_rev_override_setup(char *str);
62
63void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
64 const char *name);
65int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
66 const char *hotplug_profile_name);
67void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
68
69#ifdef CONFIG_DEBUG_FS
70extern struct dentry *acpi_debugfs_dir;
71void acpi_debugfs_init(void);
72#else
73static inline void acpi_debugfs_init(void) { return; }
74#endif
75#ifdef CONFIG_PCI
76void acpi_lpss_init(void);
77#else
78static inline void acpi_lpss_init(void) {}
79#endif
80
81void acpi_apd_init(void);
82
83acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
84bool acpi_queue_hotplug_work(struct work_struct *work);
85void acpi_device_hotplug(struct acpi_device *adev, u32 src);
86bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
87
88acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
89void acpi_scan_table_notify(void);
90
91/* --------------------------------------------------------------------------
92 Device Node Initialization / Removal
93 -------------------------------------------------------------------------- */
94#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
95 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
96
97extern struct list_head acpi_bus_id_list;
98
99#define ACPI_MAX_DEVICE_INSTANCES 4096
100
101struct acpi_device_bus_id {
102 const char *bus_id;
103 struct ida instance_ida;
104 struct list_head node;
105};
106
107int acpi_device_add(struct acpi_device *device,
108 void (*release)(struct device *));
109void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
110 int type);
111int acpi_device_setup_files(struct acpi_device *dev);
112void acpi_device_remove_files(struct acpi_device *dev);
113void acpi_device_add_finalize(struct acpi_device *device);
114void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
115bool acpi_device_is_present(const struct acpi_device *adev);
116bool acpi_device_is_battery(struct acpi_device *adev);
117bool acpi_device_is_first_physical_node(struct acpi_device *adev,
118 const struct device *dev);
119int acpi_bus_register_early_device(int type);
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);
135struct acpi_device *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);
143void acpi_turn_off_unused_power_resources(void);
144
145/* --------------------------------------------------------------------------
146 Device Power Management
147 -------------------------------------------------------------------------- */
148int acpi_device_get_power(struct acpi_device *device, int *state);
149int acpi_wakeup_device_init(void);
150
151/* --------------------------------------------------------------------------
152 Processor
153 -------------------------------------------------------------------------- */
154#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
155void acpi_early_processor_set_pdc(void);
156#else
157static inline void acpi_early_processor_set_pdc(void) {}
158#endif
159
160#ifdef CONFIG_X86
161void acpi_early_processor_osc(void);
162#else
163static inline void acpi_early_processor_osc(void) {}
164#endif
165
166/* --------------------------------------------------------------------------
167 Embedded Controller
168 -------------------------------------------------------------------------- */
169struct acpi_ec {
170 acpi_handle handle;
171 int gpe;
172 int irq;
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 bool busy_polling;
187 unsigned int polling_guard;
188};
189
190extern struct acpi_ec *first_ec;
191
192/* If we find an EC via the ECDT, we need to keep a ptr to its context */
193/* External interfaces use first EC only, so remember */
194typedef int (*acpi_ec_query_func) (void *data);
195
196void acpi_ec_init(void);
197void acpi_ec_ecdt_probe(void);
198void acpi_ec_dsdt_probe(void);
199void acpi_ec_block_transactions(void);
200void acpi_ec_unblock_transactions(void);
201int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
202 acpi_handle handle, acpi_ec_query_func func,
203 void *data);
204void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
205
206#ifdef CONFIG_PM_SLEEP
207void acpi_ec_flush_work(void);
208bool acpi_ec_dispatch_gpe(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 int acpi_sleep_init(void);
218#else
219static inline bool acpi_s2idle_wakeup(void) { return false; }
220static inline int acpi_sleep_init(void) { return -ENXIO; }
221#endif
222
223#ifdef CONFIG_ACPI_SLEEP
224void acpi_sleep_proc_init(void);
225int suspend_nvs_alloc(void);
226void suspend_nvs_free(void);
227int suspend_nvs_save(void);
228void suspend_nvs_restore(void);
229#else
230static inline void acpi_sleep_proc_init(void) {}
231static inline int suspend_nvs_alloc(void) { return 0; }
232static inline void suspend_nvs_free(void) {}
233static inline int suspend_nvs_save(void) { return 0; }
234static inline void suspend_nvs_restore(void) {}
235#endif
236
237#ifdef CONFIG_X86
238bool force_storage_d3(void);
239#else
240static inline bool force_storage_d3(void)
241{
242 return false;
243}
244#endif
245
246/*--------------------------------------------------------------------------
247 Device properties
248 -------------------------------------------------------------------------- */
249#define ACPI_DT_NAMESPACE_HID "PRP0001"
250
251void acpi_init_properties(struct acpi_device *adev);
252void acpi_free_properties(struct acpi_device *adev);
253
254#ifdef CONFIG_X86
255void acpi_extract_apple_properties(struct acpi_device *adev);
256#else
257static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
258#endif
259
260/*--------------------------------------------------------------------------
261 Watchdog
262 -------------------------------------------------------------------------- */
263
264#ifdef CONFIG_ACPI_WATCHDOG
265void acpi_watchdog_init(void);
266#else
267static inline void acpi_watchdog_init(void) {}
268#endif
269
270#ifdef CONFIG_ACPI_LPIT
271void acpi_init_lpit(void);
272#else
273static inline void acpi_init_lpit(void) { }
274#endif
275
276#endif /* _ACPI_INTERNAL_H_ */