xref: /openbmc/linux/drivers/acpi/acpica/achware.h (revision 22db0633)
1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: achware.h -- hardware specific interfaces
5  *
6  * Copyright (C) 2000 - 2023, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef __ACHWARE_H__
11 #define __ACHWARE_H__
12 
13 /* Values for the _SST predefined method */
14 
15 #define ACPI_SST_INDICATOR_OFF  0
16 #define ACPI_SST_WORKING        1
17 #define ACPI_SST_WAKING         2
18 #define ACPI_SST_SLEEPING       3
19 #define ACPI_SST_SLEEP_CONTEXT  4
20 
21 /*
22  * hwacpi - high level functions
23  */
24 acpi_status acpi_hw_set_mode(u32 mode);
25 
26 u32 acpi_hw_get_mode(void);
27 
28 /*
29  * hwregs - ACPI Register I/O
30  */
31 acpi_status
32 acpi_hw_validate_register(struct acpi_generic_address *reg,
33 			  u8 max_bit_width, u64 *address);
34 
35 acpi_status acpi_hw_read(u64 *value, struct acpi_generic_address *reg);
36 
37 acpi_status acpi_hw_write(u64 value, struct acpi_generic_address *reg);
38 
39 struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id);
40 
41 acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control);
42 
43 acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value);
44 
45 acpi_status acpi_hw_register_write(u32 register_id, u32 value);
46 
47 acpi_status acpi_hw_clear_acpi_status(void);
48 
49 /*
50  * hwsleep - sleep/wake support (Legacy sleep registers)
51  */
52 acpi_status acpi_hw_legacy_sleep(u8 sleep_state);
53 
54 acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state);
55 
56 acpi_status acpi_hw_legacy_wake(u8 sleep_state);
57 
58 /*
59  * hwesleep - sleep/wake support (Extended FADT-V5 sleep registers)
60  */
61 void acpi_hw_execute_sleep_method(char *method_name, u32 integer_argument);
62 
63 acpi_status acpi_hw_extended_sleep(u8 sleep_state);
64 
65 acpi_status acpi_hw_extended_wake_prep(u8 sleep_state);
66 
67 acpi_status acpi_hw_extended_wake(u8 sleep_state);
68 
69 /*
70  * hwvalid - Port I/O with validation
71  */
72 acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width);
73 
74 acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
75 
76 acpi_status acpi_hw_validate_io_block(u64 address, u32 bit_width, u32 count);
77 
78 /*
79  * hwgpe - GPE support
80  */
81 acpi_status acpi_hw_gpe_read(u64 *value, struct acpi_gpe_address *reg);
82 
83 acpi_status acpi_hw_gpe_write(u64 value, struct acpi_gpe_address *reg);
84 
85 u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info);
86 
87 acpi_status
88 acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action);
89 
90 acpi_status
91 acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
92 			  struct acpi_gpe_block_info *gpe_block, void *context);
93 
94 acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info);
95 
96 acpi_status
97 acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
98 			struct acpi_gpe_block_info *gpe_block, void *context);
99 
100 acpi_status
101 acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
102 		       acpi_event_status *event_status);
103 
104 acpi_status acpi_hw_enable_all_runtime_gpes(void);
105 
106 acpi_status acpi_hw_enable_all_wakeup_gpes(void);
107 
108 u8 acpi_hw_check_all_gpes(acpi_handle gpe_skip_device, u32 gpe_skip_number);
109 
110 acpi_status
111 acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
112 				 struct acpi_gpe_block_info *gpe_block,
113 				 void *context);
114 
115 #ifdef ACPI_PCI_CONFIGURED
116 /*
117  * hwpci - PCI configuration support
118  */
119 acpi_status
120 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
121 		      acpi_handle root_pci_device, acpi_handle pci_region);
122 #else
123 static inline acpi_status
acpi_hw_derive_pci_id(struct acpi_pci_id * pci_id,acpi_handle root_pci_device,acpi_handle pci_region)124 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device,
125 		      acpi_handle pci_region)
126 {
127 	return AE_SUPPORT;
128 }
129 #endif
130 
131 #endif				/* __ACHWARE_H__ */
132