internal.h 12 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. extern struct acpi_device *acpi_root;
  12. int early_acpi_osi_init(void);
  13. int acpi_osi_init(void);
  14. acpi_status acpi_os_initialize1(void);
  15. void acpi_scan_init(void);
  16. #ifdef CONFIG_PCI
  17. void acpi_pci_root_init(void);
  18. void acpi_pci_link_init(void);
  19. #else
  20. static inline void acpi_pci_root_init(void) {}
  21. static inline void acpi_pci_link_init(void) {}
  22. #endif
  23. void acpi_processor_init(void);
  24. void acpi_platform_init(void);
  25. void acpi_pnp_init(void);
  26. int acpi_sysfs_init(void);
  27. void acpi_gpe_apply_masked_gpes(void);
  28. void acpi_container_init(void);
  29. void acpi_memory_hotplug_init(void);
  30. #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
  31. void pci_ioapic_remove(struct acpi_pci_root *root);
  32. int acpi_ioapic_remove(struct acpi_pci_root *root);
  33. #else
  34. static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; }
  35. static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
  36. #endif
  37. #ifdef CONFIG_ACPI_DOCK
  38. void register_dock_dependent_device(struct acpi_device *adev,
  39. acpi_handle dshandle);
  40. int dock_notify(struct acpi_device *adev, u32 event);
  41. void acpi_dock_add(struct acpi_device *adev);
  42. #else
  43. static inline void register_dock_dependent_device(struct acpi_device *adev,
  44. acpi_handle dshandle) {}
  45. static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
  46. static inline void acpi_dock_add(struct acpi_device *adev) {}
  47. #endif
  48. #ifdef CONFIG_X86
  49. void acpi_cmos_rtc_init(void);
  50. #else
  51. static inline void acpi_cmos_rtc_init(void) {}
  52. #endif
  53. int acpi_rev_override_setup(char *str);
  54. void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
  55. const char *name);
  56. int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
  57. const char *hotplug_profile_name);
  58. void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
  59. #ifdef CONFIG_DEBUG_FS
  60. extern struct dentry *acpi_debugfs_dir;
  61. void acpi_debugfs_init(void);
  62. #else
  63. static inline void acpi_debugfs_init(void) { return; }
  64. #endif
  65. #if defined(CONFIG_X86) && defined(CONFIG_PCI)
  66. void acpi_lpss_init(void);
  67. #else
  68. static inline void acpi_lpss_init(void) {}
  69. #endif
  70. void acpi_apd_init(void);
  71. acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
  72. bool acpi_queue_hotplug_work(struct work_struct *work);
  73. void acpi_device_hotplug(struct acpi_device *adev, u32 src);
  74. bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
  75. acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context);
  76. void acpi_scan_table_notify(void);
  77. int acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp);
  78. int acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp);
  79. int acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp);
  80. int acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp);
  81. #ifdef CONFIG_ARM64
  82. int acpi_arch_thermal_cpufreq_pctg(void);
  83. #else
  84. static inline int acpi_arch_thermal_cpufreq_pctg(void)
  85. {
  86. return 0;
  87. }
  88. #endif
  89. /* --------------------------------------------------------------------------
  90. Device Node Initialization / Removal
  91. -------------------------------------------------------------------------- */
  92. #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
  93. ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
  94. extern struct list_head acpi_bus_id_list;
  95. struct acpi_device_bus_id {
  96. const char *bus_id;
  97. struct ida instance_ida;
  98. struct list_head node;
  99. };
  100. void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
  101. int type, void (*release)(struct device *));
  102. int acpi_tie_acpi_dev(struct acpi_device *adev);
  103. int acpi_device_add(struct acpi_device *device);
  104. void acpi_device_setup_files(struct acpi_device *dev);
  105. void acpi_device_remove_files(struct acpi_device *dev);
  106. extern const struct attribute_group *acpi_groups[];
  107. void acpi_device_add_finalize(struct acpi_device *device);
  108. void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
  109. bool acpi_device_is_enabled(const struct acpi_device *adev);
  110. bool acpi_device_is_present(const struct acpi_device *adev);
  111. bool acpi_device_is_battery(struct acpi_device *adev);
  112. bool acpi_device_is_first_physical_node(struct acpi_device *adev,
  113. const struct device *dev);
  114. int acpi_bus_register_early_device(int type);
  115. /* --------------------------------------------------------------------------
  116. Device Matching and Notification
  117. -------------------------------------------------------------------------- */
  118. const struct acpi_device *acpi_companion_match(const struct device *dev);
  119. int __acpi_device_uevent_modalias(const struct acpi_device *adev,
  120. struct kobj_uevent_env *env);
  121. /* --------------------------------------------------------------------------
  122. Power Resource
  123. -------------------------------------------------------------------------- */
  124. void acpi_power_resources_init(void);
  125. void acpi_power_resources_list_free(struct list_head *list);
  126. int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
  127. struct list_head *list);
  128. struct acpi_device *acpi_add_power_resource(acpi_handle handle);
  129. void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
  130. int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
  131. int acpi_device_sleep_wake(struct acpi_device *dev,
  132. int enable, int sleep_state, int dev_state);
  133. int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
  134. int acpi_power_on_resources(struct acpi_device *device, int state);
  135. int acpi_power_transition(struct acpi_device *device, int state);
  136. void acpi_turn_off_unused_power_resources(void);
  137. /* --------------------------------------------------------------------------
  138. Device Power Management
  139. -------------------------------------------------------------------------- */
  140. int acpi_device_get_power(struct acpi_device *device, int *state);
  141. int acpi_wakeup_device_init(void);
  142. /* --------------------------------------------------------------------------
  143. Processor
  144. -------------------------------------------------------------------------- */
  145. #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
  146. void acpi_early_processor_control_setup(void);
  147. void acpi_early_processor_set_pdc(void);
  148. #ifdef CONFIG_X86
  149. void acpi_proc_quirk_mwait_check(void);
  150. #else
  151. static inline void acpi_proc_quirk_mwait_check(void) {}
  152. #endif
  153. bool processor_physically_present(acpi_handle handle);
  154. #else
  155. static inline void acpi_early_processor_control_setup(void) {}
  156. #endif
  157. #ifdef CONFIG_ACPI_PROCESSOR_CSTATE
  158. void acpi_idle_rescan_dead_smt_siblings(void);
  159. #else
  160. static inline void acpi_idle_rescan_dead_smt_siblings(void) {}
  161. #endif
  162. /* --------------------------------------------------------------------------
  163. Embedded Controller
  164. -------------------------------------------------------------------------- */
  165. enum acpi_ec_event_state {
  166. EC_EVENT_READY = 0, /* Event work can be submitted */
  167. EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */
  168. EC_EVENT_COMPLETE, /* Event work processing has completed */
  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. enum acpi_ec_event_state event_state;
  187. unsigned int events_to_process;
  188. unsigned int events_in_progress;
  189. unsigned int queries_in_progress;
  190. bool busy_polling;
  191. unsigned int polling_guard;
  192. };
  193. extern struct acpi_ec *first_ec;
  194. /* If we find an EC via the ECDT, we need to keep a ptr to its context */
  195. /* External interfaces use first EC only, so remember */
  196. typedef int (*acpi_ec_query_func) (void *data);
  197. #ifdef CONFIG_ACPI_EC
  198. void acpi_ec_init(void);
  199. void acpi_ec_ecdt_probe(void);
  200. void acpi_ec_dsdt_probe(void);
  201. void acpi_ec_block_transactions(void);
  202. void acpi_ec_unblock_transactions(void);
  203. int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
  204. acpi_handle handle, acpi_ec_query_func func,
  205. void *data);
  206. void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
  207. void acpi_ec_register_opregions(struct acpi_device *adev);
  208. #ifdef CONFIG_PM_SLEEP
  209. void acpi_ec_flush_work(void);
  210. bool acpi_ec_dispatch_gpe(void);
  211. #endif
  212. #else
  213. static inline void acpi_ec_init(void) {}
  214. static inline void acpi_ec_ecdt_probe(void) {}
  215. static inline void acpi_ec_dsdt_probe(void) {}
  216. static inline void acpi_ec_block_transactions(void) {}
  217. static inline void acpi_ec_unblock_transactions(void) {}
  218. static inline int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
  219. acpi_handle handle, acpi_ec_query_func func,
  220. void *data)
  221. {
  222. return -ENXIO;
  223. }
  224. static inline void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) {}
  225. static inline void acpi_ec_register_opregions(struct acpi_device *adev) {}
  226. static inline void acpi_ec_flush_work(void) {}
  227. static inline bool acpi_ec_dispatch_gpe(void)
  228. {
  229. return false;
  230. }
  231. #endif
  232. /*--------------------------------------------------------------------------
  233. Suspend/Resume
  234. -------------------------------------------------------------------------- */
  235. #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
  236. extern bool acpi_s2idle_wakeup(void);
  237. extern int acpi_sleep_init(void);
  238. #else
  239. static inline bool acpi_s2idle_wakeup(void) { return false; }
  240. static inline int acpi_sleep_init(void) { return -ENXIO; }
  241. #endif
  242. #ifdef CONFIG_ACPI_SLEEP
  243. void acpi_sleep_proc_init(void);
  244. int suspend_nvs_alloc(void);
  245. void suspend_nvs_free(void);
  246. int suspend_nvs_save(void);
  247. void suspend_nvs_restore(void);
  248. #else
  249. static inline void acpi_sleep_proc_init(void) {}
  250. static inline int suspend_nvs_alloc(void) { return 0; }
  251. static inline void suspend_nvs_free(void) {}
  252. static inline int suspend_nvs_save(void) { return 0; }
  253. static inline void suspend_nvs_restore(void) {}
  254. #endif
  255. #ifdef CONFIG_X86
  256. bool force_storage_d3(void);
  257. #else
  258. static inline bool force_storage_d3(void)
  259. {
  260. return false;
  261. }
  262. #endif
  263. /*--------------------------------------------------------------------------
  264. Device properties
  265. -------------------------------------------------------------------------- */
  266. #define ACPI_DT_NAMESPACE_HID "PRP0001"
  267. void acpi_init_properties(struct acpi_device *adev);
  268. void acpi_free_properties(struct acpi_device *adev);
  269. #ifdef CONFIG_X86
  270. void acpi_extract_apple_properties(struct acpi_device *adev);
  271. #else
  272. static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
  273. #endif
  274. /*--------------------------------------------------------------------------
  275. Watchdog
  276. -------------------------------------------------------------------------- */
  277. #ifdef CONFIG_ACPI_WATCHDOG
  278. void acpi_watchdog_init(void);
  279. #else
  280. static inline void acpi_watchdog_init(void) {}
  281. #endif
  282. #ifdef CONFIG_ACPI_LPIT
  283. void acpi_init_lpit(void);
  284. #else
  285. static inline void acpi_init_lpit(void) { }
  286. #endif
  287. /*--------------------------------------------------------------------------
  288. ACPI _CRS CSI-2 and MIPI DisCo for Imaging
  289. -------------------------------------------------------------------------- */
  290. void acpi_mipi_check_crs_csi2(acpi_handle handle);
  291. void acpi_mipi_scan_crs_csi2(void);
  292. void acpi_mipi_init_crs_csi2_swnodes(void);
  293. void acpi_mipi_crs_csi2_cleanup(void);
  294. #ifdef CONFIG_X86
  295. bool acpi_graph_ignore_port(acpi_handle handle);
  296. #else
  297. static inline bool acpi_graph_ignore_port(acpi_handle handle) { return false; }
  298. #endif
  299. #endif /* _ACPI_INTERNAL_H_ */