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