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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
14extern struct acpi_device *acpi_root;
15
16int early_acpi_osi_init(void);
17int acpi_osi_init(void);
18acpi_status acpi_os_initialize1(void);
19void acpi_scan_init(void);
20#ifdef CONFIG_PCI
21void acpi_pci_root_init(void);
22void acpi_pci_link_init(void);
23#else
24static inline void acpi_pci_root_init(void) {}
25static inline void acpi_pci_link_init(void) {}
26#endif
27void acpi_processor_init(void);
28void acpi_platform_init(void);
29void acpi_pnp_init(void);
30void acpi_int340x_thermal_init(void);
31int acpi_sysfs_init(void);
32void acpi_gpe_apply_masked_gpes(void);
33void acpi_container_init(void);
34void acpi_memory_hotplug_init(void);
35#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
36void pci_ioapic_remove(struct acpi_pci_root *root);
37int acpi_ioapic_remove(struct acpi_pci_root *root);
38#else
39static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
40static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
41#endif
42#ifdef CONFIG_ACPI_DOCK
43void register_dock_dependent_device(struct acpi_device *adev,
44 acpi_handle dshandle);
45int dock_notify(struct acpi_device *adev, u32 event);
46void acpi_dock_add(struct acpi_device *adev);
47#else
48static inline void register_dock_dependent_device(struct acpi_device *adev,
49 acpi_handle dshandle) {}
50static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
51static inline void acpi_dock_add(struct acpi_device *adev) {}
52#endif
53#ifdef CONFIG_X86
54void acpi_cmos_rtc_init(void);
55#else
56static inline void acpi_cmos_rtc_init(void) {}
57#endif
58int acpi_rev_override_setup(char *str);
59
60void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
61 const char *name);
62int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
63 const char *hotplug_profile_name);
64void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
65
66#ifdef CONFIG_DEBUG_FS
67extern struct dentry *acpi_debugfs_dir;
68void acpi_debugfs_init(void);
69#else
70static inline void acpi_debugfs_init(void) { return; }
71#endif
72#ifdef CONFIG_PCI
73void acpi_lpss_init(void);
74#else
75static inline void acpi_lpss_init(void) {}
76#endif
77
78void acpi_apd_init(void);
79
80acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
81bool acpi_queue_hotplug_work(struct work_struct *work);
82void acpi_device_hotplug(struct acpi_device *adev, u32 src);
83bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
84
85acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
86void acpi_scan_table_notify(void);
87
88int acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
89int acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
90int acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
91int acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
92
93#ifdef CONFIG_ARM64
94int acpi_arch_thermal_cpufreq_pctg(void);
95#else
96static inline int acpi_arch_thermal_cpufreq_pctg(void)
97{
98 return 0;
99}
100#endif
101
102/* --------------------------------------------------------------------------
103 Device Node Initialization / Removal
104 -------------------------------------------------------------------------- */
105#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
106 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
107
108extern struct list_head acpi_bus_id_list;
109
110struct acpi_device_bus_id {
111 const char *bus_id;
112 struct ida instance_ida;
113 struct list_head node;
114};
115
116void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
117 int type, void (*release)(struct device *));
118int acpi_tie_acpi_dev(struct acpi_device *adev);
119int acpi_device_add(struct acpi_device *device);
120int acpi_device_setup_files(struct acpi_device *dev);
121void acpi_device_remove_files(struct acpi_device *dev);
122void acpi_device_add_finalize(struct acpi_device *device);
123void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
124bool acpi_device_is_enabled(const struct acpi_device *adev);
125bool acpi_device_is_present(const struct acpi_device *adev);
126bool acpi_device_is_battery(struct acpi_device *adev);
127bool acpi_device_is_first_physical_node(struct acpi_device *adev,
128 const struct device *dev);
129int acpi_bus_register_early_device(int type);
130
131/* --------------------------------------------------------------------------
132 Device Matching and Notification
133 -------------------------------------------------------------------------- */
134const struct acpi_device *acpi_companion_match(const struct device *dev);
135int __acpi_device_uevent_modalias(const struct acpi_device *adev,
136 struct kobj_uevent_env *env);
137
138/* --------------------------------------------------------------------------
139 Power Resource
140 -------------------------------------------------------------------------- */
141void acpi_power_resources_list_free(struct list_head *list);
142int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
143 struct list_head *list);
144struct acpi_device *acpi_add_power_resource(acpi_handle handle);
145void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
146int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
147int acpi_device_sleep_wake(struct acpi_device *dev,
148 int enable, int sleep_state, int dev_state);
149int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
150int acpi_power_on_resources(struct acpi_device *device, int state);
151int acpi_power_transition(struct acpi_device *device, int state);
152void acpi_turn_off_unused_power_resources(void);
153
154/* --------------------------------------------------------------------------
155 Device Power Management
156 -------------------------------------------------------------------------- */
157int acpi_device_get_power(struct acpi_device *device, int *state);
158int acpi_wakeup_device_init(void);
159
160/* --------------------------------------------------------------------------
161 Processor
162 -------------------------------------------------------------------------- */
163#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
164void acpi_early_processor_control_setup(void);
165void acpi_early_processor_set_pdc(void);
166#ifdef CONFIG_X86
167void acpi_proc_quirk_mwait_check(void);
168#else
169static inline void acpi_proc_quirk_mwait_check(void) {}
170#endif
171bool processor_physically_present(acpi_handle handle);
172#else
173static inline void acpi_early_processor_control_setup(void) {}
174#endif
175
176/* --------------------------------------------------------------------------
177 Embedded Controller
178 -------------------------------------------------------------------------- */
179
180enum acpi_ec_event_state {
181 EC_EVENT_READY = 0, /* Event work can be submitted */
182 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
183 EC_EVENT_COMPLETE, /* Event work processing has completed */
184};
185
186struct acpi_ec {
187 acpi_handle handle;
188 acpi_handle address_space_handler_holder;
189 int gpe;
190 int irq;
191 unsigned long command_addr;
192 unsigned long data_addr;
193 bool global_lock;
194 unsigned long flags;
195 unsigned long reference_count;
196 struct mutex mutex;
197 wait_queue_head_t wait;
198 struct list_head list;
199 struct transaction *curr;
200 spinlock_t lock;
201 struct work_struct work;
202 unsigned long timestamp;
203 enum acpi_ec_event_state event_state;
204 unsigned int events_to_process;
205 unsigned int events_in_progress;
206 unsigned int queries_in_progress;
207 bool busy_polling;
208 unsigned int polling_guard;
209};
210
211extern struct acpi_ec *first_ec;
212
213/* If we find an EC via the ECDT, we need to keep a ptr to its context */
214/* External interfaces use first EC only, so remember */
215typedef int (*acpi_ec_query_func) (void *data);
216
217void acpi_ec_init(void);
218void acpi_ec_ecdt_probe(void);
219void acpi_ec_dsdt_probe(void);
220void acpi_ec_block_transactions(void);
221void acpi_ec_unblock_transactions(void);
222int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
223 acpi_handle handle, acpi_ec_query_func func,
224 void *data);
225void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
226
227#ifdef CONFIG_PM_SLEEP
228void acpi_ec_flush_work(void);
229bool acpi_ec_dispatch_gpe(void);
230#endif
231
232
233/*--------------------------------------------------------------------------
234 Suspend/Resume
235 -------------------------------------------------------------------------- */
236#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
237extern bool acpi_s2idle_wakeup(void);
238extern int acpi_sleep_init(void);
239#else
240static inline bool acpi_s2idle_wakeup(void) { return false; }
241static inline int acpi_sleep_init(void) { return -ENXIO; }
242#endif
243
244#ifdef CONFIG_ACPI_SLEEP
245void acpi_sleep_proc_init(void);
246int suspend_nvs_alloc(void);
247void suspend_nvs_free(void);
248int suspend_nvs_save(void);
249void suspend_nvs_restore(void);
250#else
251static inline void acpi_sleep_proc_init(void) {}
252static inline int suspend_nvs_alloc(void) { return 0; }
253static inline void suspend_nvs_free(void) {}
254static inline int suspend_nvs_save(void) { return 0; }
255static inline void suspend_nvs_restore(void) {}
256#endif
257
258#ifdef CONFIG_X86
259bool force_storage_d3(void);
260#else
261static inline bool force_storage_d3(void)
262{
263 return false;
264}
265#endif
266
267/*--------------------------------------------------------------------------
268 Device properties
269 -------------------------------------------------------------------------- */
270#define ACPI_DT_NAMESPACE_HID "PRP0001"
271
272void acpi_init_properties(struct acpi_device *adev);
273void acpi_free_properties(struct acpi_device *adev);
274
275#ifdef CONFIG_X86
276void acpi_extract_apple_properties(struct acpi_device *adev);
277#else
278static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
279#endif
280
281/*--------------------------------------------------------------------------
282 Watchdog
283 -------------------------------------------------------------------------- */
284
285#ifdef CONFIG_ACPI_WATCHDOG
286void acpi_watchdog_init(void);
287#else
288static inline void acpi_watchdog_init(void) {}
289#endif
290
291#ifdef CONFIG_ACPI_LPIT
292void acpi_init_lpit(void);
293#else
294static inline void acpi_init_lpit(void) { }
295#endif
296
297/*--------------------------------------------------------------------------
298 ACPI _CRS CSI-2 and MIPI DisCo for Imaging
299 -------------------------------------------------------------------------- */
300
301void acpi_mipi_check_crs_csi2(acpi_handle handle);
302void acpi_mipi_scan_crs_csi2(void);
303void acpi_mipi_init_crs_csi2_swnodes(void);
304void acpi_mipi_crs_csi2_cleanup(void);
305bool acpi_graph_ignore_port(acpi_handle handle);
306
307#endif /* _ACPI_INTERNAL_H_ */