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 14 int early_acpi_osi_init(void); 15 int acpi_osi_init(void); 16 acpi_status acpi_os_initialize1(void); 17 void 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_notify(void); 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 const char *bus_id; 101 struct ida instance_ida; 102 struct list_head node; 103 }; 104 105 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 106 int type, void (*release)(struct device *)); 107 int acpi_tie_acpi_dev(struct acpi_device *adev); 108 int acpi_device_add(struct acpi_device *device); 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(const 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 struct acpi_device *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 void acpi_turn_off_unused_power_resources(void); 142 143 /* -------------------------------------------------------------------------- 144 Device Power Management 145 -------------------------------------------------------------------------- */ 146 int acpi_device_get_power(struct acpi_device *device, int *state); 147 int acpi_wakeup_device_init(void); 148 149 /* -------------------------------------------------------------------------- 150 Processor 151 -------------------------------------------------------------------------- */ 152 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 153 void acpi_early_processor_set_pdc(void); 154 #else 155 static inline void acpi_early_processor_set_pdc(void) {} 156 #endif 157 158 #ifdef CONFIG_X86 159 void acpi_early_processor_osc(void); 160 #else 161 static inline void acpi_early_processor_osc(void) {} 162 #endif 163 164 /* -------------------------------------------------------------------------- 165 Embedded Controller 166 -------------------------------------------------------------------------- */ 167 168 enum acpi_ec_event_state { 169 EC_EVENT_READY = 0, /* Event work can be submitted */ 170 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */ 171 EC_EVENT_COMPLETE, /* Event work processing has completed */ 172 }; 173 174 struct acpi_ec { 175 acpi_handle handle; 176 acpi_handle address_space_handler_holder; 177 int gpe; 178 int irq; 179 unsigned long command_addr; 180 unsigned long data_addr; 181 bool global_lock; 182 unsigned long flags; 183 unsigned long reference_count; 184 struct mutex mutex; 185 wait_queue_head_t wait; 186 struct list_head list; 187 struct transaction *curr; 188 spinlock_t lock; 189 struct work_struct work; 190 unsigned long timestamp; 191 enum acpi_ec_event_state event_state; 192 unsigned int events_to_process; 193 unsigned int events_in_progress; 194 unsigned int queries_in_progress; 195 bool busy_polling; 196 unsigned int polling_guard; 197 }; 198 199 extern struct acpi_ec *first_ec; 200 201 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 202 /* External interfaces use first EC only, so remember */ 203 typedef int (*acpi_ec_query_func) (void *data); 204 205 void acpi_ec_init(void); 206 void acpi_ec_ecdt_probe(void); 207 void acpi_ec_dsdt_probe(void); 208 void acpi_ec_block_transactions(void); 209 void acpi_ec_unblock_transactions(void); 210 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 211 acpi_handle handle, acpi_ec_query_func func, 212 void *data); 213 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 214 215 #ifdef CONFIG_PM_SLEEP 216 void acpi_ec_flush_work(void); 217 bool acpi_ec_dispatch_gpe(void); 218 #endif 219 220 221 /*-------------------------------------------------------------------------- 222 Suspend/Resume 223 -------------------------------------------------------------------------- */ 224 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 225 extern bool acpi_s2idle_wakeup(void); 226 extern int acpi_sleep_init(void); 227 #else 228 static inline bool acpi_s2idle_wakeup(void) { return false; } 229 static inline int acpi_sleep_init(void) { return -ENXIO; } 230 #endif 231 232 #ifdef CONFIG_ACPI_SLEEP 233 void acpi_sleep_proc_init(void); 234 int suspend_nvs_alloc(void); 235 void suspend_nvs_free(void); 236 int suspend_nvs_save(void); 237 void suspend_nvs_restore(void); 238 #else 239 static inline void acpi_sleep_proc_init(void) {} 240 static inline int suspend_nvs_alloc(void) { return 0; } 241 static inline void suspend_nvs_free(void) {} 242 static inline int suspend_nvs_save(void) { return 0; } 243 static inline void suspend_nvs_restore(void) {} 244 #endif 245 246 #ifdef CONFIG_X86 247 bool force_storage_d3(void); 248 #else 249 static inline bool force_storage_d3(void) 250 { 251 return false; 252 } 253 #endif 254 255 /*-------------------------------------------------------------------------- 256 Device properties 257 -------------------------------------------------------------------------- */ 258 #define ACPI_DT_NAMESPACE_HID "PRP0001" 259 260 void acpi_init_properties(struct acpi_device *adev); 261 void acpi_free_properties(struct acpi_device *adev); 262 263 #ifdef CONFIG_X86 264 void acpi_extract_apple_properties(struct acpi_device *adev); 265 #else 266 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 267 #endif 268 269 /*-------------------------------------------------------------------------- 270 Watchdog 271 -------------------------------------------------------------------------- */ 272 273 #ifdef CONFIG_ACPI_WATCHDOG 274 void acpi_watchdog_init(void); 275 #else 276 static inline void acpi_watchdog_init(void) {} 277 #endif 278 279 #ifdef CONFIG_ACPI_LPIT 280 void acpi_init_lpit(void); 281 #else 282 static inline void acpi_init_lpit(void) { } 283 #endif 284 285 #endif /* _ACPI_INTERNAL_H_ */ 286