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 int acpi_scan_init(void); 27 #ifdef CONFIG_PCI 28 void acpi_pci_root_init(void); 29 void acpi_pci_link_init(void); 30 #else 31 static inline void acpi_pci_root_init(void) {} 32 static inline void acpi_pci_link_init(void) {} 33 #endif 34 void acpi_processor_init(void); 35 void acpi_platform_init(void); 36 void acpi_pnp_init(void); 37 void acpi_int340x_thermal_init(void); 38 #ifdef CONFIG_ARM_AMBA 39 void acpi_amba_init(void); 40 #else 41 static inline void acpi_amba_init(void) {} 42 #endif 43 int acpi_sysfs_init(void); 44 void acpi_gpe_apply_masked_gpes(void); 45 void acpi_container_init(void); 46 void acpi_memory_hotplug_init(void); 47 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 48 void pci_ioapic_remove(struct acpi_pci_root *root); 49 int acpi_ioapic_remove(struct acpi_pci_root *root); 50 #else 51 static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } 52 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 53 #endif 54 #ifdef CONFIG_ACPI_DOCK 55 void register_dock_dependent_device(struct acpi_device *adev, 56 acpi_handle dshandle); 57 int dock_notify(struct acpi_device *adev, u32 event); 58 void acpi_dock_add(struct acpi_device *adev); 59 #else 60 static inline void register_dock_dependent_device(struct acpi_device *adev, 61 acpi_handle dshandle) {} 62 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 63 static inline void acpi_dock_add(struct acpi_device *adev) {} 64 #endif 65 #ifdef CONFIG_X86 66 void acpi_cmos_rtc_init(void); 67 #else 68 static inline void acpi_cmos_rtc_init(void) {} 69 #endif 70 int acpi_rev_override_setup(char *str); 71 72 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 73 const char *name); 74 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 75 const char *hotplug_profile_name); 76 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 77 78 #ifdef CONFIG_DEBUG_FS 79 extern struct dentry *acpi_debugfs_dir; 80 void acpi_debugfs_init(void); 81 #else 82 static inline void acpi_debugfs_init(void) { return; } 83 #endif 84 void acpi_lpss_init(void); 85 86 void acpi_apd_init(void); 87 88 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 89 bool acpi_queue_hotplug_work(struct work_struct *work); 90 void acpi_device_hotplug(struct acpi_device *adev, u32 src); 91 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 92 93 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 94 void acpi_scan_table_handler(u32 event, void *table, void *context); 95 96 /* -------------------------------------------------------------------------- 97 Device Node Initialization / Removal 98 -------------------------------------------------------------------------- */ 99 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 100 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 101 102 extern struct list_head acpi_bus_id_list; 103 104 struct acpi_device_bus_id { 105 char bus_id[15]; 106 unsigned int instance_no; 107 struct list_head node; 108 }; 109 110 int acpi_device_add(struct acpi_device *device, 111 void (*release)(struct device *)); 112 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 113 int type, unsigned long long sta); 114 int acpi_device_setup_files(struct acpi_device *dev); 115 void acpi_device_remove_files(struct acpi_device *dev); 116 void acpi_device_add_finalize(struct acpi_device *device); 117 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 118 bool acpi_device_is_present(const struct acpi_device *adev); 119 bool acpi_device_is_battery(struct acpi_device *adev); 120 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 121 const struct device *dev); 122 int acpi_bus_register_early_device(int type); 123 124 /* -------------------------------------------------------------------------- 125 Device Matching and Notification 126 -------------------------------------------------------------------------- */ 127 struct acpi_device *acpi_companion_match(const struct device *dev); 128 int __acpi_device_uevent_modalias(struct acpi_device *adev, 129 struct kobj_uevent_env *env); 130 131 /* -------------------------------------------------------------------------- 132 Power Resource 133 -------------------------------------------------------------------------- */ 134 int acpi_power_init(void); 135 void acpi_power_resources_list_free(struct list_head *list); 136 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 137 struct list_head *list); 138 int acpi_add_power_resource(acpi_handle handle); 139 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 140 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 141 int acpi_device_sleep_wake(struct acpi_device *dev, 142 int enable, int sleep_state, int dev_state); 143 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 144 int acpi_power_on_resources(struct acpi_device *device, int state); 145 int acpi_power_transition(struct acpi_device *device, int state); 146 147 int acpi_wakeup_device_init(void); 148 149 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 150 void acpi_early_processor_set_pdc(void); 151 #else 152 static inline void acpi_early_processor_set_pdc(void) {} 153 #endif 154 155 #ifdef CONFIG_X86 156 void acpi_early_processor_osc(void); 157 #else 158 static inline void acpi_early_processor_osc(void) {} 159 #endif 160 161 /* -------------------------------------------------------------------------- 162 Embedded Controller 163 -------------------------------------------------------------------------- */ 164 struct acpi_ec { 165 acpi_handle handle; 166 u32 gpe; 167 unsigned long command_addr; 168 unsigned long data_addr; 169 bool global_lock; 170 unsigned long flags; 171 unsigned long reference_count; 172 struct mutex mutex; 173 wait_queue_head_t wait; 174 struct list_head list; 175 struct transaction *curr; 176 spinlock_t lock; 177 struct work_struct work; 178 unsigned long timestamp; 179 unsigned long nr_pending_queries; 180 bool busy_polling; 181 unsigned int polling_guard; 182 }; 183 184 extern struct acpi_ec *first_ec; 185 186 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 187 /* External interfaces use first EC only, so remember */ 188 typedef int (*acpi_ec_query_func) (void *data); 189 190 int acpi_ec_init(void); 191 int acpi_ec_ecdt_probe(void); 192 int acpi_ec_dsdt_probe(void); 193 void acpi_ec_block_transactions(void); 194 void acpi_ec_unblock_transactions(void); 195 void acpi_ec_mark_gpe_for_wake(void); 196 void acpi_ec_set_gpe_wake_mask(u8 action); 197 void acpi_ec_dispatch_gpe(void); 198 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 199 acpi_handle handle, acpi_ec_query_func func, 200 void *data); 201 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 202 203 #ifdef CONFIG_PM_SLEEP 204 void acpi_ec_flush_work(void); 205 #endif 206 207 208 /*-------------------------------------------------------------------------- 209 Suspend/Resume 210 -------------------------------------------------------------------------- */ 211 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 212 extern bool acpi_s2idle_wakeup(void); 213 extern bool acpi_sleep_no_ec_events(void); 214 extern int acpi_sleep_init(void); 215 #else 216 static inline bool acpi_s2idle_wakeup(void) { return false; } 217 static inline bool acpi_sleep_no_ec_events(void) { return true; } 218 static inline int acpi_sleep_init(void) { return -ENXIO; } 219 #endif 220 221 #ifdef CONFIG_ACPI_SLEEP 222 void acpi_sleep_proc_init(void); 223 int suspend_nvs_alloc(void); 224 void suspend_nvs_free(void); 225 int suspend_nvs_save(void); 226 void suspend_nvs_restore(void); 227 #else 228 static inline void acpi_sleep_proc_init(void) {} 229 static inline int suspend_nvs_alloc(void) { return 0; } 230 static inline void suspend_nvs_free(void) {} 231 static inline int suspend_nvs_save(void) { return 0; } 232 static inline void suspend_nvs_restore(void) {} 233 #endif 234 235 /*-------------------------------------------------------------------------- 236 Device properties 237 -------------------------------------------------------------------------- */ 238 #define ACPI_DT_NAMESPACE_HID "PRP0001" 239 240 void acpi_init_properties(struct acpi_device *adev); 241 void acpi_free_properties(struct acpi_device *adev); 242 243 #ifdef CONFIG_X86 244 void acpi_extract_apple_properties(struct acpi_device *adev); 245 #else 246 static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 247 #endif 248 249 /*-------------------------------------------------------------------------- 250 Watchdog 251 -------------------------------------------------------------------------- */ 252 253 #ifdef CONFIG_ACPI_WATCHDOG 254 void acpi_watchdog_init(void); 255 #else 256 static inline void acpi_watchdog_init(void) {} 257 #endif 258 259 #ifdef CONFIG_ACPI_LPIT 260 void acpi_init_lpit(void); 261 #else 262 static inline void acpi_init_lpit(void) { } 263 #endif 264 265 #endif /* _ACPI_INTERNAL_H_ */ 266