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 - 2020, 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 /* 77 * hwgpe - GPE support 78 */ 79 u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info); 80 81 acpi_status 82 acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action); 83 84 acpi_status 85 acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, 86 struct acpi_gpe_block_info *gpe_block, void *context); 87 88 acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info); 89 90 acpi_status 91 acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, 92 struct acpi_gpe_block_info *gpe_block, void *context); 93 94 acpi_status 95 acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info, 96 acpi_event_status *event_status); 97 98 acpi_status acpi_hw_disable_all_gpes(void); 99 100 acpi_status acpi_hw_enable_all_runtime_gpes(void); 101 102 acpi_status acpi_hw_enable_all_wakeup_gpes(void); 103 104 u8 acpi_hw_check_all_gpes(void); 105 106 acpi_status 107 acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, 108 struct acpi_gpe_block_info *gpe_block, 109 void *context); 110 111 #ifdef ACPI_PCI_CONFIGURED 112 /* 113 * hwpci - PCI configuration support 114 */ 115 acpi_status 116 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, 117 acpi_handle root_pci_device, acpi_handle pci_region); 118 #else 119 static inline acpi_status 120 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id, acpi_handle root_pci_device, 121 acpi_handle pci_region) 122 { 123 return AE_SUPPORT; 124 } 125 #endif 126 127 #endif /* __ACHWARE_H__ */ 128