1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2/******************************************************************************
3 *
4 * Name: acevents.h - Event subcomponent prototypes and defines
5 *
6 * Copyright (C) 2000 - 2025, Intel Corp.
7 *
8 *****************************************************************************/
9
10#ifndef __ACEVENTS_H__
11#define __ACEVENTS_H__
12
13/*
14 * Conditions to trigger post enabling GPE polling:
15 * It is not sufficient to trigger edge-triggered GPE with specific GPE
16 * chips, software need to poll once after enabling.
17 */
18#ifdef ACPI_USE_GPE_POLLING
19#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__) \
20 ((__gpe__)->runtime_count == 1 && \
21 (__gpe__)->flags & ACPI_GPE_INITIALIZED && \
22 ((__gpe__)->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_EDGE_TRIGGERED)
23#else
24#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__) FALSE
25#endif
26
27/*
28 * evevent
29 */
30acpi_status acpi_ev_initialize_events(void);
31
32acpi_status acpi_ev_install_xrupt_handlers(void);
33
34u32 acpi_ev_fixed_event_detect(void);
35
36/*
37 * evmisc
38 */
39u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node);
40
41u32 acpi_ev_get_gpe_number_index(u32 gpe_number);
42
43acpi_status
44acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
45 u32 notify_value);
46
47/*
48 * evglock - Global Lock support
49 */
50acpi_status acpi_ev_init_global_lock_handler(void);
51
52ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
53 acpi_ev_acquire_global_lock(u16 timeout))
54ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))
55
56acpi_status acpi_ev_remove_global_lock_handler(void);
57
58/*
59 * evgpe - Low-level GPE support
60 */
61u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);
62
63acpi_status
64acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info);
65
66acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
67
68acpi_status
69acpi_ev_mask_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 is_masked);
70
71acpi_status
72acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info,
73 u8 clear_on_enable);
74
75acpi_status
76acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_info);
77
78struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
79 u32 gpe_number);
80
81struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number,
82 struct acpi_gpe_block_info
83 *gpe_block);
84
85acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info);
86
87u32
88acpi_ev_detect_gpe(struct acpi_namespace_node *gpe_device,
89 struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number);
90
91/*
92 * evgpeblk - Upper-level GPE block support
93 */
94acpi_status
95acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
96 u64 address,
97 u8 space_id,
98 u32 register_count,
99 u16 gpe_block_base_number,
100 u32 interrupt_number,
101 struct acpi_gpe_block_info **return_gpe_block);
102
103acpi_status
104acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
105 struct acpi_gpe_block_info *gpe_block,
106 void *context);
107
108ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
109 acpi_ev_delete_gpe_block(struct acpi_gpe_block_info
110 *gpe_block))
111
112u32
113acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
114 struct acpi_gpe_event_info *gpe_event_info,
115 u32 gpe_number);
116
117/*
118 * evgpeinit - GPE initialization and update
119 */
120acpi_status acpi_ev_gpe_initialize(void);
121
122ACPI_HW_DEPENDENT_RETURN_VOID(void
123 acpi_ev_update_gpes(acpi_owner_id table_owner_id))
124
125acpi_status
126acpi_ev_match_gpe_method(acpi_handle obj_handle,
127 u32 level, void *context, void **return_value);
128
129/*
130 * evgpeutil - GPE utilities
131 */
132acpi_status
133acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context);
134
135acpi_status
136acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
137 struct acpi_gpe_block_info *gpe_block, void *context);
138
139acpi_status
140acpi_ev_get_gpe_xrupt_block(u32 interrupt_number,
141 struct acpi_gpe_xrupt_info **gpe_xrupt_block);
142
143acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt);
144
145acpi_status
146acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
147 struct acpi_gpe_block_info *gpe_block,
148 void *context);
149
150/*
151 * evhandler - Address space handling
152 */
153union acpi_operand_object *acpi_ev_find_region_handler(acpi_adr_space_type
154 space_id,
155 union acpi_operand_object
156 *handler_obj);
157
158u8
159acpi_ev_has_default_handler(struct acpi_namespace_node *node,
160 acpi_adr_space_type space_id);
161
162acpi_status acpi_ev_install_region_handlers(void);
163
164acpi_status
165acpi_ev_install_space_handler(struct acpi_namespace_node *node,
166 acpi_adr_space_type space_id,
167 acpi_adr_space_handler handler,
168 acpi_adr_space_setup setup, void *context);
169
170/*
171 * evregion - Operation region support
172 */
173acpi_status acpi_ev_initialize_op_regions(void);
174
175acpi_status
176acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
177 union acpi_operand_object *field_obj,
178 u32 function,
179 u32 region_offset, u32 bit_width, u64 *value);
180
181acpi_status
182acpi_ev_attach_region(union acpi_operand_object *handler_obj,
183 union acpi_operand_object *region_obj,
184 u8 acpi_ns_is_locked);
185
186void
187acpi_ev_detach_region(union acpi_operand_object *region_obj,
188 u8 acpi_ns_is_locked);
189
190void
191acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, u32 max_depth,
192 acpi_adr_space_type space_id, u32 function);
193
194acpi_status
195acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function);
196
197/*
198 * evregini - Region initialization and setup
199 */
200acpi_status
201acpi_ev_system_memory_region_setup(acpi_handle handle,
202 u32 function,
203 void *handler_context,
204 void **region_context);
205
206acpi_status
207acpi_ev_io_space_region_setup(acpi_handle handle,
208 u32 function,
209 void *handler_context, void **region_context);
210
211acpi_status
212acpi_ev_pci_config_region_setup(acpi_handle handle,
213 u32 function,
214 void *handler_context, void **region_context);
215
216acpi_status
217acpi_ev_cmos_region_setup(acpi_handle handle,
218 u32 function,
219 void *handler_context, void **region_context);
220
221acpi_status
222acpi_ev_pci_bar_region_setup(acpi_handle handle,
223 u32 function,
224 void *handler_context, void **region_context);
225
226acpi_status
227acpi_ev_data_table_region_setup(acpi_handle handle,
228 u32 function,
229 void *handler_context, void **region_context);
230
231acpi_status
232acpi_ev_default_region_setup(acpi_handle handle,
233 u32 function,
234 void *handler_context, void **region_context);
235
236acpi_status acpi_ev_initialize_region(union acpi_operand_object *region_obj);
237
238u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
239
240/*
241 * evsci - SCI (System Control Interrupt) handling/dispatch
242 */
243u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context);
244
245u32 acpi_ev_sci_dispatch(void);
246
247u32 acpi_ev_install_sci_handler(void);
248
249acpi_status acpi_ev_remove_all_sci_handlers(void);
250
251ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void))
252#endif /* __ACEVENTS_H__ */
253