internal.h 9.6 KB

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  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. #ifndef _ACPI_INTERNAL_H_
  9. #define _ACPI_INTERNAL_H_
  10. #include <linux/idr.h>
  11. int early_acpi_osi_init(void);
  12. int acpi_osi_init(void);
  13. acpi_status acpi_os_initialize1(void);
  14. void acpi_scan_init(void);
  15. #ifdef CONFIG_PCI
  16. void acpi_pci_root_init(void);
  17. void acpi_pci_link_init(void);
  18. #else
  19. static inline void acpi_pci_root_init(void) {}
  20. static inline void acpi_pci_link_init(void) {}
  21. #endif
  22. void acpi_processor_init(void);
  23. void acpi_platform_init(void);
  24. void acpi_pnp_init(void);
  25. void acpi_int340x_thermal_init(void);
  26. #ifdef CONFIG_ARM_AMBA
  27. void acpi_amba_init(void);
  28. #else
  29. static inline void acpi_amba_init(void) {}
  30. #endif
  31. int acpi_sysfs_init(void);
  32. void acpi_gpe_apply_masked_gpes(void);
  33. void acpi_container_init(void);
  34. void acpi_memory_hotplug_init(void);
  35. #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
  36. void pci_ioapic_remove(struct acpi_pci_root *root);
  37. int acpi_ioapic_remove(struct acpi_pci_root *root);
  38. #else
  39. static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
  40. static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  41. #endif
  42. #ifdef CONFIG_ACPI_DOCK
  43. void register_dock_dependent_device(struct acpi_device *adev,
  44. acpi_handle dshandle);
  45. int dock_notify(struct acpi_device *adev, u32 event);
  46. void acpi_dock_add(struct acpi_device *adev);
  47. #else
  48. static inline void register_dock_dependent_device(struct acpi_device *adev,
  49. acpi_handle dshandle) {}
  50. static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  51. static inline void acpi_dock_add(struct acpi_device *adev) {}
  52. #endif
  53. #ifdef CONFIG_X86
  54. void acpi_cmos_rtc_init(void);
  55. #else
  56. static inline void acpi_cmos_rtc_init(void) {}
  57. #endif
  58. int acpi_rev_override_setup(char *str);
  59. void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  60. const char *name);
  61. int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  62. const char *hotplug_profile_name);
  63. void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  64. #ifdef CONFIG_DEBUG_FS
  65. extern struct dentry *acpi_debugfs_dir;
  66. void acpi_debugfs_init(void);
  67. #else
  68. static inline void acpi_debugfs_init(void) { return; }
  69. #endif
  70. #ifdef CONFIG_PCI
  71. void acpi_lpss_init(void);
  72. #else
  73. static inline void acpi_lpss_init(void) {}
  74. #endif
  75. void acpi_apd_init(void);
  76. acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  77. bool acpi_queue_hotplug_work(struct work_struct *work);
  78. void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  79. bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  80. acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  81. void acpi_scan_table_notify(void);
  82. /* --------------------------------------------------------------------------
  83. Device Node Initialization / Removal
  84. -------------------------------------------------------------------------- */
  85. #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  86. ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  87. extern struct list_head acpi_bus_id_list;
  88. struct acpi_device_bus_id {
  89. const char *bus_id;
  90. struct ida instance_ida;
  91. struct list_head node;
  92. };
  93. void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  94. int type, void (*release)(struct device *));
  95. int acpi_tie_acpi_dev(struct acpi_device *adev);
  96. int acpi_device_add(struct acpi_device *device);
  97. int acpi_device_setup_files(struct acpi_device *dev);
  98. void acpi_device_remove_files(struct acpi_device *dev);
  99. void acpi_device_add_finalize(struct acpi_device *device);
  100. void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  101. bool acpi_device_is_present(const struct acpi_device *adev);
  102. bool acpi_device_is_battery(struct acpi_device *adev);
  103. bool acpi_device_is_first_physical_node(struct acpi_device *adev,
  104. const struct device *dev);
  105. int acpi_bus_register_early_device(int type);
  106. /* --------------------------------------------------------------------------
  107. Device Matching and Notification
  108. -------------------------------------------------------------------------- */
  109. struct acpi_device *acpi_companion_match(const struct device *dev);
  110. int __acpi_device_uevent_modalias(struct acpi_device *adev,
  111. struct kobj_uevent_env *env);
  112. /* --------------------------------------------------------------------------
  113. Power Resource
  114. -------------------------------------------------------------------------- */
  115. int acpi_power_init(void);
  116. void acpi_power_resources_list_free(struct list_head *list);
  117. int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
  118. struct list_head *list);
  119. struct acpi_device *acpi_add_power_resource(acpi_handle handle);
  120. void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
  121. int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
  122. int acpi_device_sleep_wake(struct acpi_device *dev,
  123. int enable, int sleep_state, int dev_state);
  124. int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
  125. int acpi_power_on_resources(struct acpi_device *device, int state);
  126. int acpi_power_transition(struct acpi_device *device, int state);
  127. void acpi_turn_off_unused_power_resources(void);
  128. /* --------------------------------------------------------------------------
  129. Device Power Management
  130. -------------------------------------------------------------------------- */
  131. int acpi_device_get_power(struct acpi_device *device, int *state);
  132. int acpi_wakeup_device_init(void);
  133. /* --------------------------------------------------------------------------
  134. Processor
  135. -------------------------------------------------------------------------- */
  136. #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
  137. void acpi_early_processor_set_pdc(void);
  138. #else
  139. static inline void acpi_early_processor_set_pdc(void) {}
  140. #endif
  141. #ifdef CONFIG_X86
  142. void acpi_early_processor_osc(void);
  143. #else
  144. static inline void acpi_early_processor_osc(void) {}
  145. #endif
  146. /* --------------------------------------------------------------------------
  147. Embedded Controller
  148. -------------------------------------------------------------------------- */
  149. enum acpi_ec_event_state {
  150. EC_EVENT_READY = 0, /* Event work can be submitted */
  151. EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
  152. EC_EVENT_COMPLETE, /* Event work processing has completed */
  153. };
  154. struct acpi_ec {
  155. acpi_handle handle;
  156. int gpe;
  157. int irq;
  158. unsigned long command_addr;
  159. unsigned long data_addr;
  160. bool global_lock;
  161. unsigned long flags;
  162. unsigned long reference_count;
  163. struct mutex mutex;
  164. wait_queue_head_t wait;
  165. struct list_head list;
  166. struct transaction *curr;
  167. spinlock_t lock;
  168. struct work_struct work;
  169. unsigned long timestamp;
  170. enum acpi_ec_event_state event_state;
  171. unsigned int events_to_process;
  172. unsigned int events_in_progress;
  173. unsigned int queries_in_progress;
  174. bool busy_polling;
  175. unsigned int polling_guard;
  176. };
  177. extern struct acpi_ec *first_ec;
  178. /* If we find an EC via the ECDT, we need to keep a ptr to its context */
  179. /* External interfaces use first EC only, so remember */
  180. typedef int (*acpi_ec_query_func) (void *data);
  181. void acpi_ec_init(void);
  182. void acpi_ec_ecdt_probe(void);
  183. void acpi_ec_dsdt_probe(void);
  184. void acpi_ec_block_transactions(void);
  185. void acpi_ec_unblock_transactions(void);
  186. int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
  187. acpi_handle handle, acpi_ec_query_func func,
  188. void *data);
  189. void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
  190. #ifdef CONFIG_PM_SLEEP
  191. void acpi_ec_flush_work(void);
  192. bool acpi_ec_dispatch_gpe(void);
  193. #endif
  194. /*--------------------------------------------------------------------------
  195. Suspend/Resume
  196. -------------------------------------------------------------------------- */
  197. #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
  198. extern bool acpi_s2idle_wakeup(void);
  199. extern int acpi_sleep_init(void);
  200. #else
  201. static inline bool acpi_s2idle_wakeup(void) { return false; }
  202. static inline int acpi_sleep_init(void) { return -ENXIO; }
  203. #endif
  204. #ifdef CONFIG_ACPI_SLEEP
  205. void acpi_sleep_proc_init(void);
  206. int suspend_nvs_alloc(void);
  207. void suspend_nvs_free(void);
  208. int suspend_nvs_save(void);
  209. void suspend_nvs_restore(void);
  210. #else
  211. static inline void acpi_sleep_proc_init(void) {}
  212. static inline int suspend_nvs_alloc(void) { return 0; }
  213. static inline void suspend_nvs_free(void) {}
  214. static inline int suspend_nvs_save(void) { return 0; }
  215. static inline void suspend_nvs_restore(void) {}
  216. #endif
  217. #ifdef CONFIG_X86
  218. bool force_storage_d3(void);
  219. #else
  220. static inline bool force_storage_d3(void)
  221. {
  222. return false;
  223. }
  224. #endif
  225. /*--------------------------------------------------------------------------
  226. Device properties
  227. -------------------------------------------------------------------------- */
  228. #define ACPI_DT_NAMESPACE_HID "PRP0001"
  229. void acpi_init_properties(struct acpi_device *adev);
  230. void acpi_free_properties(struct acpi_device *adev);
  231. #ifdef CONFIG_X86
  232. void acpi_extract_apple_properties(struct acpi_device *adev);
  233. #else
  234. static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
  235. #endif
  236. /*--------------------------------------------------------------------------
  237. Watchdog
  238. -------------------------------------------------------------------------- */
  239. #ifdef CONFIG_ACPI_WATCHDOG
  240. void acpi_watchdog_init(void);
  241. #else
  242. static inline void acpi_watchdog_init(void) {}
  243. #endif
  244. #ifdef CONFIG_ACPI_LPIT
  245. void acpi_init_lpit(void);
  246. #else
  247. static inline void acpi_init_lpit(void) { }
  248. #endif
  249. #endif /* _ACPI_INTERNAL_H_ */