1 /* 2 * acpi/internal.h 3 * For use by Linux/ACPI infrastructure, not drivers 4 * 5 * Copyright (c) 2009, Intel Corporation. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms and conditions of the GNU General Public License, 9 * version 2, as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 */ 17 18 #ifndef _ACPI_INTERNAL_H_ 19 #define _ACPI_INTERNAL_H_ 20 21 #define PREFIX "ACPI: " 22 23 int early_acpi_osi_init(void); 24 int acpi_osi_init(void); 25 acpi_status acpi_os_initialize1(void); 26 void init_acpi_device_notify(void); 27 int acpi_scan_init(void); 28 void acpi_pci_root_init(void); 29 void acpi_pci_link_init(void); 30 void acpi_processor_init(void); 31 void acpi_platform_init(void); 32 void acpi_pnp_init(void); 33 void acpi_int340x_thermal_init(void); 34 #ifdef CONFIG_ARM_AMBA 35 void acpi_amba_init(void); 36 #else 37 static inline void acpi_amba_init(void) {} 38 #endif 39 int acpi_sysfs_init(void); 40 void acpi_gpe_apply_masked_gpes(void); 41 void acpi_container_init(void); 42 void acpi_memory_hotplug_init(void); 43 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 44 void pci_ioapic_remove(struct acpi_pci_root *root); 45 int acpi_ioapic_remove(struct acpi_pci_root *root); 46 #else 47 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } 48 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 49 #endif 50 #ifdef CONFIG_ACPI_DOCK 51 void register_dock_dependent_device(struct acpi_device *adev, 52 acpi_handle dshandle); 53 int dock_notify(struct acpi_device *adev, u32 event); 54 void acpi_dock_add(struct acpi_device *adev); 55 #else 56 static inline void register_dock_dependent_device(struct acpi_device *adev, 57 acpi_handle dshandle) {} 58 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 59 static inline void acpi_dock_add(struct acpi_device *adev) {} 60 #endif 61 #ifdef CONFIG_X86 62 void acpi_cmos_rtc_init(void); 63 #else 64 static inline void acpi_cmos_rtc_init(void) {} 65 #endif 66 int acpi_rev_override_setup(char *str); 67 68 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 69 const char *name); 70 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 71 const char *hotplug_profile_name); 72 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 73 74 #ifdef CONFIG_DEBUG_FS 75 extern struct dentry *acpi_debugfs_dir; 76 void acpi_debugfs_init(void); 77 #else 78 static inline void acpi_debugfs_init(void) { return; } 79 #endif 80 void acpi_lpss_init(void); 81 82 void acpi_apd_init(void); 83 84 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 85 bool acpi_queue_hotplug_work(struct work_struct *work); 86 void acpi_device_hotplug(struct acpi_device *adev, u32 src); 87 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 88 89 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 90 void acpi_scan_table_handler(u32 event, void *table, void *context); 91 92 /* -------------------------------------------------------------------------- 93 Device Node Initialization / Removal 94 -------------------------------------------------------------------------- */ 95 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 96 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 97 98 extern struct list_head acpi_bus_id_list; 99 100 struct acpi_device_bus_id { 101 char bus_id[15]; 102 unsigned int instance_no; 103 struct list_head node; 104 }; 105 106 int acpi_device_add(struct acpi_device *device, 107 void (*release)(struct device *)); 108 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 109 int type, unsigned long long sta); 110 int acpi_device_setup_files(struct acpi_device *dev); 111 void acpi_device_remove_files(struct acpi_device *dev); 112 void acpi_device_add_finalize(struct acpi_device *device); 113 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 114 bool acpi_device_is_present(const struct acpi_device *adev); 115 bool acpi_device_is_battery(struct acpi_device *adev); 116 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 117 const struct device *dev); 118 int acpi_bus_register_early_device(int type); 119 120 /* -------------------------------------------------------------------------- 121 Device Matching and Notification 122 -------------------------------------------------------------------------- */ 123 struct acpi_device *acpi_companion_match(const struct device *dev); 124 int __acpi_device_uevent_modalias(struct acpi_device *adev, 125 struct kobj_uevent_env *env); 126 127 /* -------------------------------------------------------------------------- 128 Power Resource 129 -------------------------------------------------------------------------- */ 130 int acpi_power_init(void); 131 void acpi_power_resources_list_free(struct list_head *list); 132 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 133 struct list_head *list); 134 int acpi_add_power_resource(acpi_handle handle); 135 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 136 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 137 int acpi_device_sleep_wake(struct acpi_device *dev, 138 int enable, int sleep_state, int dev_state); 139 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 140 int acpi_power_on_resources(struct acpi_device *device, int state); 141 int acpi_power_transition(struct acpi_device *device, int state); 142 143 int acpi_wakeup_device_init(void); 144 145 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 146 void acpi_early_processor_set_pdc(void); 147 #else 148 static inline void acpi_early_processor_set_pdc(void) {} 149 #endif 150 151 #ifdef CONFIG_X86 152 void acpi_early_processor_osc(void); 153 #else 154 static inline void acpi_early_processor_osc(void) {} 155 #endif 156 157 /* -------------------------------------------------------------------------- 158 Embedded Controller 159 -------------------------------------------------------------------------- */ 160 struct acpi_ec { 161 acpi_handle handle; 162 u32 gpe; 163 unsigned long command_addr; 164 unsigned long data_addr; 165 bool global_lock; 166 unsigned long flags; 167 unsigned long reference_count; 168 struct mutex mutex; 169 wait_queue_head_t wait; 170 struct list_head list; 171 struct transaction *curr; 172 spinlock_t lock; 173 struct work_struct work; 174 unsigned long timestamp; 175 unsigned long nr_pending_queries; 176 bool busy_polling; 177 unsigned int polling_guard; 178 }; 179 180 extern struct acpi_ec *first_ec; 181 182 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 183 /* External interfaces use first EC only, so remember */ 184 typedef int (*acpi_ec_query_func) (void *data); 185 186 int acpi_ec_init(void); 187 int acpi_ec_ecdt_probe(void); 188 int acpi_ec_dsdt_probe(void); 189 void acpi_ec_block_transactions(void); 190 void acpi_ec_unblock_transactions(void); 191 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 192 acpi_handle handle, acpi_ec_query_func func, 193 void *data); 194 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 195 196 #ifdef CONFIG_PM_SLEEP 197 void acpi_ec_flush_work(void); 198 #endif 199 200 201 /*-------------------------------------------------------------------------- 202 Suspend/Resume 203 -------------------------------------------------------------------------- */ 204 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 205 extern bool acpi_s2idle_wakeup(void); 206 extern bool acpi_sleep_no_ec_events(void); 207 extern int acpi_sleep_init(void); 208 #else 209 static inline bool acpi_s2idle_wakeup(void) { return false; } 210 static inline bool acpi_sleep_no_ec_events(void) { return true; } 211 static inline int acpi_sleep_init(void) { return -ENXIO; } 212 #endif 213 214 #ifdef CONFIG_ACPI_SLEEP 215 void acpi_sleep_proc_init(void); 216 int suspend_nvs_alloc(void); 217 void suspend_nvs_free(void); 218 int suspend_nvs_save(void); 219 void suspend_nvs_restore(void); 220 #else 221 static inline void acpi_sleep_proc_init(void) {} 222 static inline int suspend_nvs_alloc(void) { return 0; } 223 static inline void suspend_nvs_free(void) {} 224 static inline int suspend_nvs_save(void) { return 0; } 225 static inline void suspend_nvs_restore(void) {} 226 #endif 227 228 /*-------------------------------------------------------------------------- 229 Device properties 230 -------------------------------------------------------------------------- */ 231 #define ACPI_DT_NAMESPACE_HID "PRP0001" 232 233 void acpi_init_properties(struct acpi_device *adev); 234 void acpi_free_properties(struct acpi_device *adev); 235 236 #ifdef CONFIG_X86 237 void acpi_extract_apple_properties(struct acpi_device *adev); 238 #else 239 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 240 #endif 241 242 /*-------------------------------------------------------------------------- 243 Watchdog 244 -------------------------------------------------------------------------- */ 245 246 #ifdef CONFIG_ACPI_WATCHDOG 247 void acpi_watchdog_init(void); 248 #else 249 static inline void acpi_watchdog_init(void) {} 250 #endif 251 252 #ifdef CONFIG_ACPI_LPIT 253 void acpi_init_lpit(void); 254 #else 255 static inline void acpi_init_lpit(void) { } 256 #endif 257 258 #endif /* _ACPI_INTERNAL_H_ */ 259