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 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_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 #define ACPI_MAX_DEVICE_INSTANCES 4096 100 101 struct acpi_device_bus_id { 102 const char *bus_id; 103 struct ida instance_ida; 104 struct list_head node; 105 }; 106 107 int acpi_device_add(struct acpi_device *device, 108 void (*release)(struct device *)); 109 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 110 int type); 111 int acpi_device_setup_files(struct acpi_device *dev); 112 void acpi_device_remove_files(struct acpi_device *dev); 113 void acpi_device_add_finalize(struct acpi_device *device); 114 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 115 bool acpi_device_is_present(const struct acpi_device *adev); 116 bool acpi_device_is_battery(struct acpi_device *adev); 117 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 118 const struct device *dev); 119 int acpi_bus_register_early_device(int type); 120 int acpi_dev_turn_off_if_unused(struct device *dev, void *not_used); 121 122 /* -------------------------------------------------------------------------- 123 Device Matching and Notification 124 -------------------------------------------------------------------------- */ 125 struct acpi_device *acpi_companion_match(const struct device *dev); 126 int __acpi_device_uevent_modalias(struct acpi_device *adev, 127 struct kobj_uevent_env *env); 128 129 /* -------------------------------------------------------------------------- 130 Power Resource 131 -------------------------------------------------------------------------- */ 132 int acpi_power_init(void); 133 void acpi_power_resources_list_free(struct list_head *list); 134 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 135 struct list_head *list); 136 struct acpi_device *acpi_add_power_resource(acpi_handle handle); 137 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 138 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 139 int acpi_device_sleep_wake(struct acpi_device *dev, 140 int enable, int sleep_state, int dev_state); 141 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 142 int acpi_power_on_resources(struct acpi_device *device, int state); 143 int acpi_power_transition(struct acpi_device *device, int state); 144 void acpi_turn_off_unused_power_resources(void); 145 146 /* -------------------------------------------------------------------------- 147 Device Power Management 148 -------------------------------------------------------------------------- */ 149 int acpi_device_get_power(struct acpi_device *device, int *state); 150 int acpi_wakeup_device_init(void); 151 152 /* -------------------------------------------------------------------------- 153 Processor 154 -------------------------------------------------------------------------- */ 155 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 156 void acpi_early_processor_set_pdc(void); 157 #else 158 static inline void acpi_early_processor_set_pdc(void) {} 159 #endif 160 161 #ifdef CONFIG_X86 162 void acpi_early_processor_osc(void); 163 #else 164 static inline void acpi_early_processor_osc(void) {} 165 #endif 166 167 /* -------------------------------------------------------------------------- 168 Embedded Controller 169 -------------------------------------------------------------------------- */ 170 struct acpi_ec { 171 acpi_handle handle; 172 int gpe; 173 int irq; 174 unsigned long command_addr; 175 unsigned long data_addr; 176 bool global_lock; 177 unsigned long flags; 178 unsigned long reference_count; 179 struct mutex mutex; 180 wait_queue_head_t wait; 181 struct list_head list; 182 struct transaction *curr; 183 spinlock_t lock; 184 struct work_struct work; 185 unsigned long timestamp; 186 unsigned long nr_pending_queries; 187 bool busy_polling; 188 unsigned int polling_guard; 189 }; 190 191 extern struct acpi_ec *first_ec; 192 193 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 194 /* External interfaces use first EC only, so remember */ 195 typedef int (*acpi_ec_query_func) (void *data); 196 197 void acpi_ec_init(void); 198 void acpi_ec_ecdt_probe(void); 199 void acpi_ec_dsdt_probe(void); 200 void acpi_ec_block_transactions(void); 201 void acpi_ec_unblock_transactions(void); 202 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 203 acpi_handle handle, acpi_ec_query_func func, 204 void *data); 205 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 206 207 #ifdef CONFIG_PM_SLEEP 208 void acpi_ec_flush_work(void); 209 bool acpi_ec_dispatch_gpe(void); 210 #endif 211 212 213 /*-------------------------------------------------------------------------- 214 Suspend/Resume 215 -------------------------------------------------------------------------- */ 216 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 217 extern bool acpi_s2idle_wakeup(void); 218 extern int acpi_sleep_init(void); 219 #else 220 static inline bool acpi_s2idle_wakeup(void) { return false; } 221 static inline int acpi_sleep_init(void) { return -ENXIO; } 222 #endif 223 224 #ifdef CONFIG_ACPI_SLEEP 225 void acpi_sleep_proc_init(void); 226 int suspend_nvs_alloc(void); 227 void suspend_nvs_free(void); 228 int suspend_nvs_save(void); 229 void suspend_nvs_restore(void); 230 #else 231 static inline void acpi_sleep_proc_init(void) {} 232 static inline int suspend_nvs_alloc(void) { return 0; } 233 static inline void suspend_nvs_free(void) {} 234 static inline int suspend_nvs_save(void) { return 0; } 235 static inline void suspend_nvs_restore(void) {} 236 #endif 237 238 #ifdef CONFIG_X86 239 bool force_storage_d3(void); 240 #else 241 static inline bool force_storage_d3(void) 242 { 243 return false; 244 } 245 #endif 246 247 /*-------------------------------------------------------------------------- 248 Device properties 249 -------------------------------------------------------------------------- */ 250 #define ACPI_DT_NAMESPACE_HID "PRP0001" 251 252 void acpi_init_properties(struct acpi_device *adev); 253 void acpi_free_properties(struct acpi_device *adev); 254 255 #ifdef CONFIG_X86 256 void acpi_extract_apple_properties(struct acpi_device *adev); 257 #else 258 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 259 #endif 260 261 /*-------------------------------------------------------------------------- 262 Watchdog 263 -------------------------------------------------------------------------- */ 264 265 #ifdef CONFIG_ACPI_WATCHDOG 266 void acpi_watchdog_init(void); 267 #else 268 static inline void acpi_watchdog_init(void) {} 269 #endif 270 271 #ifdef CONFIG_ACPI_LPIT 272 void acpi_init_lpit(void); 273 #else 274 static inline void acpi_init_lpit(void) { } 275 #endif 276 277 #endif /* _ACPI_INTERNAL_H_ */ 278