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 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); 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 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 int gpe; 177 int irq; 178 unsigned long command_addr; 179 unsigned long data_addr; 180 bool global_lock; 181 unsigned long flags; 182 unsigned long reference_count; 183 struct mutex mutex; 184 wait_queue_head_t wait; 185 struct list_head list; 186 struct transaction *curr; 187 spinlock_t lock; 188 struct work_struct work; 189 unsigned long timestamp; 190 enum acpi_ec_event_state event_state; 191 unsigned int events_to_process; 192 unsigned int events_in_progress; 193 unsigned int queries_in_progress; 194 bool busy_polling; 195 unsigned int polling_guard; 196 }; 197 198 extern struct acpi_ec *first_ec; 199 200 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 201 /* External interfaces use first EC only, so remember */ 202 typedef int (*acpi_ec_query_func) (void *data); 203 204 void acpi_ec_init(void); 205 void acpi_ec_ecdt_probe(void); 206 void acpi_ec_dsdt_probe(void); 207 void acpi_ec_block_transactions(void); 208 void acpi_ec_unblock_transactions(void); 209 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 210 acpi_handle handle, acpi_ec_query_func func, 211 void *data); 212 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 213 214 #ifdef CONFIG_PM_SLEEP 215 void acpi_ec_flush_work(void); 216 bool acpi_ec_dispatch_gpe(void); 217 #endif 218 219 220 /*-------------------------------------------------------------------------- 221 Suspend/Resume 222 -------------------------------------------------------------------------- */ 223 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 224 extern bool acpi_s2idle_wakeup(void); 225 extern int acpi_sleep_init(void); 226 #else 227 static inline bool acpi_s2idle_wakeup(void) { return false; } 228 static inline int acpi_sleep_init(void) { return -ENXIO; } 229 #endif 230 231 #ifdef CONFIG_ACPI_SLEEP 232 void acpi_sleep_proc_init(void); 233 int suspend_nvs_alloc(void); 234 void suspend_nvs_free(void); 235 int suspend_nvs_save(void); 236 void suspend_nvs_restore(void); 237 #else 238 static inline void acpi_sleep_proc_init(void) {} 239 static inline int suspend_nvs_alloc(void) { return 0; } 240 static inline void suspend_nvs_free(void) {} 241 static inline int suspend_nvs_save(void) { return 0; } 242 static inline void suspend_nvs_restore(void) {} 243 #endif 244 245 #ifdef CONFIG_X86 246 bool force_storage_d3(void); 247 #else 248 static inline bool force_storage_d3(void) 249 { 250 return false; 251 } 252 #endif 253 254 /*-------------------------------------------------------------------------- 255 Device properties 256 -------------------------------------------------------------------------- */ 257 #define ACPI_DT_NAMESPACE_HID "PRP0001" 258 259 void acpi_init_properties(struct acpi_device *adev); 260 void acpi_free_properties(struct acpi_device *adev); 261 262 #ifdef CONFIG_X86 263 void acpi_extract_apple_properties(struct acpi_device *adev); 264 #else 265 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 266 #endif 267 268 /*-------------------------------------------------------------------------- 269 Watchdog 270 -------------------------------------------------------------------------- */ 271 272 #ifdef CONFIG_ACPI_WATCHDOG 273 void acpi_watchdog_init(void); 274 #else 275 static inline void acpi_watchdog_init(void) {} 276 #endif 277 278 #ifdef CONFIG_ACPI_LPIT 279 void acpi_init_lpit(void); 280 #else 281 static inline void acpi_init_lpit(void) { } 282 #endif 283 284 #endif /* _ACPI_INTERNAL_H_ */ 285