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 #define PREFIX "ACPI: " 13 14 int early_acpi_osi_init(void); 15 int acpi_osi_init(void); 16 acpi_status acpi_os_initialize1(void); 17 int acpi_scan_init(void); 18 #ifdef CONFIG_PCI 19 void acpi_pci_root_init(void); 20 void acpi_pci_link_init(void); 21 #else 22 static inline void acpi_pci_root_init(void) {} 23 static inline void acpi_pci_link_init(void) {} 24 #endif 25 void acpi_processor_init(void); 26 void acpi_platform_init(void); 27 void acpi_pnp_init(void); 28 void acpi_int340x_thermal_init(void); 29 #ifdef CONFIG_ARM_AMBA 30 void acpi_amba_init(void); 31 #else 32 static inline void acpi_amba_init(void) {} 33 #endif 34 int acpi_sysfs_init(void); 35 void acpi_gpe_apply_masked_gpes(void); 36 void acpi_container_init(void); 37 void acpi_memory_hotplug_init(void); 38 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 39 void pci_ioapic_remove(struct acpi_pci_root *root); 40 int acpi_ioapic_remove(struct acpi_pci_root *root); 41 #else 42 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } 43 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 44 #endif 45 #ifdef CONFIG_ACPI_DOCK 46 void register_dock_dependent_device(struct acpi_device *adev, 47 acpi_handle dshandle); 48 int dock_notify(struct acpi_device *adev, u32 event); 49 void acpi_dock_add(struct acpi_device *adev); 50 #else 51 static inline void register_dock_dependent_device(struct acpi_device *adev, 52 acpi_handle dshandle) {} 53 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 54 static inline void acpi_dock_add(struct acpi_device *adev) {} 55 #endif 56 #ifdef CONFIG_X86 57 void acpi_cmos_rtc_init(void); 58 #else 59 static inline void acpi_cmos_rtc_init(void) {} 60 #endif 61 int acpi_rev_override_setup(char *str); 62 63 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 64 const char *name); 65 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 66 const char *hotplug_profile_name); 67 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 68 69 #ifdef CONFIG_DEBUG_FS 70 extern struct dentry *acpi_debugfs_dir; 71 void acpi_debugfs_init(void); 72 #else 73 static inline void acpi_debugfs_init(void) { return; } 74 #endif 75 #ifdef CONFIG_PCI 76 void acpi_lpss_init(void); 77 #else 78 static inline void acpi_lpss_init(void) {} 79 #endif 80 81 void acpi_apd_init(void); 82 83 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 84 bool acpi_queue_hotplug_work(struct work_struct *work); 85 void acpi_device_hotplug(struct acpi_device *adev, u32 src); 86 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 87 88 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 89 void acpi_scan_table_handler(u32 event, void *table, void *context); 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 97 extern struct list_head acpi_bus_id_list; 98 99 struct acpi_device_bus_id { 100 char bus_id[15]; 101 unsigned int instance_no; 102 struct list_head node; 103 }; 104 105 int acpi_device_add(struct acpi_device *device, 106 void (*release)(struct device *)); 107 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 108 int type, unsigned long long sta); 109 int acpi_device_setup_files(struct acpi_device *dev); 110 void acpi_device_remove_files(struct acpi_device *dev); 111 void acpi_device_add_finalize(struct acpi_device *device); 112 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 113 bool acpi_device_is_present(const struct acpi_device *adev); 114 bool acpi_device_is_battery(struct acpi_device *adev); 115 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 116 const struct device *dev); 117 int acpi_bus_register_early_device(int type); 118 119 /* -------------------------------------------------------------------------- 120 Device Matching and Notification 121 -------------------------------------------------------------------------- */ 122 struct acpi_device *acpi_companion_match(const struct device *dev); 123 int __acpi_device_uevent_modalias(struct acpi_device *adev, 124 struct kobj_uevent_env *env); 125 126 /* -------------------------------------------------------------------------- 127 Power Resource 128 -------------------------------------------------------------------------- */ 129 int acpi_power_init(void); 130 void acpi_power_resources_list_free(struct list_head *list); 131 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 132 struct list_head *list); 133 int acpi_add_power_resource(acpi_handle handle); 134 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 135 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 136 int acpi_device_sleep_wake(struct acpi_device *dev, 137 int enable, int sleep_state, int dev_state); 138 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 139 int acpi_power_on_resources(struct acpi_device *device, int state); 140 int acpi_power_transition(struct acpi_device *device, int state); 141 142 /* -------------------------------------------------------------------------- 143 Device Power Management 144 -------------------------------------------------------------------------- */ 145 int acpi_device_get_power(struct acpi_device *device, int *state); 146 int acpi_wakeup_device_init(void); 147 148 /* -------------------------------------------------------------------------- 149 Processor 150 -------------------------------------------------------------------------- */ 151 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 152 void acpi_early_processor_set_pdc(void); 153 #else 154 static inline void acpi_early_processor_set_pdc(void) {} 155 #endif 156 157 #ifdef CONFIG_X86 158 void acpi_early_processor_osc(void); 159 #else 160 static inline void acpi_early_processor_osc(void) {} 161 #endif 162 163 /* -------------------------------------------------------------------------- 164 Embedded Controller 165 -------------------------------------------------------------------------- */ 166 struct acpi_ec { 167 acpi_handle handle; 168 u32 gpe; 169 unsigned long command_addr; 170 unsigned long data_addr; 171 bool global_lock; 172 unsigned long flags; 173 unsigned long reference_count; 174 struct mutex mutex; 175 wait_queue_head_t wait; 176 struct list_head list; 177 struct transaction *curr; 178 spinlock_t lock; 179 struct work_struct work; 180 unsigned long timestamp; 181 unsigned long nr_pending_queries; 182 bool busy_polling; 183 unsigned int polling_guard; 184 }; 185 186 extern struct acpi_ec *first_ec; 187 188 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 189 /* External interfaces use first EC only, so remember */ 190 typedef int (*acpi_ec_query_func) (void *data); 191 192 int acpi_ec_init(void); 193 void acpi_ec_ecdt_probe(void); 194 void acpi_ec_dsdt_probe(void); 195 void acpi_ec_block_transactions(void); 196 void acpi_ec_unblock_transactions(void); 197 void acpi_ec_mark_gpe_for_wake(void); 198 void acpi_ec_set_gpe_wake_mask(u8 action); 199 void acpi_ec_dispatch_gpe(void); 200 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 201 acpi_handle handle, acpi_ec_query_func func, 202 void *data); 203 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 204 205 #ifdef CONFIG_PM_SLEEP 206 void acpi_ec_flush_work(void); 207 #endif 208 209 210 /*-------------------------------------------------------------------------- 211 Suspend/Resume 212 -------------------------------------------------------------------------- */ 213 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 214 extern bool acpi_s2idle_wakeup(void); 215 extern bool acpi_sleep_no_ec_events(void); 216 extern int acpi_sleep_init(void); 217 #else 218 static inline bool acpi_s2idle_wakeup(void) { return false; } 219 static inline bool acpi_sleep_no_ec_events(void) { return true; } 220 static inline int acpi_sleep_init(void) { return -ENXIO; } 221 #endif 222 223 #ifdef CONFIG_ACPI_SLEEP 224 void acpi_sleep_proc_init(void); 225 int suspend_nvs_alloc(void); 226 void suspend_nvs_free(void); 227 int suspend_nvs_save(void); 228 void suspend_nvs_restore(void); 229 #else 230 static inline void acpi_sleep_proc_init(void) {} 231 static inline int suspend_nvs_alloc(void) { return 0; } 232 static inline void suspend_nvs_free(void) {} 233 static inline int suspend_nvs_save(void) { return 0; } 234 static inline void suspend_nvs_restore(void) {} 235 #endif 236 237 /*-------------------------------------------------------------------------- 238 Device properties 239 -------------------------------------------------------------------------- */ 240 #define ACPI_DT_NAMESPACE_HID "PRP0001" 241 242 void acpi_init_properties(struct acpi_device *adev); 243 void acpi_free_properties(struct acpi_device *adev); 244 245 #ifdef CONFIG_X86 246 void acpi_extract_apple_properties(struct acpi_device *adev); 247 #else 248 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 249 #endif 250 251 /*-------------------------------------------------------------------------- 252 Watchdog 253 -------------------------------------------------------------------------- */ 254 255 #ifdef CONFIG_ACPI_WATCHDOG 256 void acpi_watchdog_init(void); 257 #else 258 static inline void acpi_watchdog_init(void) {} 259 #endif 260 261 #ifdef CONFIG_ACPI_LPIT 262 void acpi_init_lpit(void); 263 #else 264 static inline void acpi_init_lpit(void) { } 265 #endif 266 267 #endif /* _ACPI_INTERNAL_H_ */ 268