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_container_init(void); 41 void acpi_memory_hotplug_init(void); 42 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 43 int acpi_ioapic_remove(struct acpi_pci_root *root); 44 #else 45 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 46 #endif 47 #ifdef CONFIG_ACPI_DOCK 48 void register_dock_dependent_device(struct acpi_device *adev, 49 acpi_handle dshandle); 50 int dock_notify(struct acpi_device *adev, u32 event); 51 void acpi_dock_add(struct acpi_device *adev); 52 #else 53 static inline void register_dock_dependent_device(struct acpi_device *adev, 54 acpi_handle dshandle) {} 55 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 56 static inline void acpi_dock_add(struct acpi_device *adev) {} 57 #endif 58 #ifdef CONFIG_X86 59 void acpi_cmos_rtc_init(void); 60 #else 61 static inline void acpi_cmos_rtc_init(void) {} 62 #endif 63 int acpi_rev_override_setup(char *str); 64 65 extern bool acpi_force_hot_remove; 66 67 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 68 const char *name); 69 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 70 const char *hotplug_profile_name); 71 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 72 73 #ifdef CONFIG_DEBUG_FS 74 extern struct dentry *acpi_debugfs_dir; 75 void acpi_debugfs_init(void); 76 #else 77 static inline void acpi_debugfs_init(void) { return; } 78 #endif 79 void acpi_lpss_init(void); 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_handler(u32 event, void *table, void *context); 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 struct acpi_device_bus_id { 100 char bus_id[15]; 101 unsigned int instance_no; 102 struct list_head node; 103 }; 104 105 int acpi_device_add(struct acpi_device *device, 106 void (*release)(struct device *)); 107 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 108 int type, unsigned long long sta); 109 int acpi_device_setup_files(struct acpi_device *dev); 110 void acpi_device_remove_files(struct acpi_device *dev); 111 void acpi_device_add_finalize(struct acpi_device *device); 112 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 113 bool acpi_device_is_present(struct acpi_device *adev); 114 bool acpi_device_is_battery(struct acpi_device *adev); 115 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 116 const struct device *dev); 117 118 /* -------------------------------------------------------------------------- 119 Device Matching and Notification 120 -------------------------------------------------------------------------- */ 121 struct acpi_device *acpi_companion_match(const struct device *dev); 122 int __acpi_device_uevent_modalias(struct acpi_device *adev, 123 struct kobj_uevent_env *env); 124 125 /* -------------------------------------------------------------------------- 126 Power Resource 127 -------------------------------------------------------------------------- */ 128 int acpi_power_init(void); 129 void acpi_power_resources_list_free(struct list_head *list); 130 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 131 struct list_head *list); 132 int acpi_add_power_resource(acpi_handle handle); 133 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 134 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 135 int acpi_device_sleep_wake(struct acpi_device *dev, 136 int enable, int sleep_state, int dev_state); 137 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 138 int acpi_power_on_resources(struct acpi_device *device, int state); 139 int acpi_power_transition(struct acpi_device *device, int state); 140 141 int acpi_wakeup_device_init(void); 142 143 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 144 void acpi_early_processor_set_pdc(void); 145 #else 146 static inline void acpi_early_processor_set_pdc(void) {} 147 #endif 148 149 #ifdef CONFIG_X86 150 void acpi_early_processor_osc(void); 151 #else 152 static inline void acpi_early_processor_osc(void) {} 153 #endif 154 155 /* -------------------------------------------------------------------------- 156 Embedded Controller 157 -------------------------------------------------------------------------- */ 158 struct acpi_ec { 159 acpi_handle handle; 160 unsigned long gpe; 161 unsigned long command_addr; 162 unsigned long data_addr; 163 bool global_lock; 164 unsigned long flags; 165 unsigned long reference_count; 166 struct mutex mutex; 167 wait_queue_head_t wait; 168 struct list_head list; 169 struct transaction *curr; 170 spinlock_t lock; 171 struct work_struct work; 172 unsigned long timestamp; 173 unsigned long nr_pending_queries; 174 bool saved_busy_polling; 175 unsigned int saved_polling_guard; 176 }; 177 178 extern struct acpi_ec *first_ec; 179 180 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 181 /* External interfaces use first EC only, so remember */ 182 typedef int (*acpi_ec_query_func) (void *data); 183 184 int acpi_ec_init(void); 185 int acpi_ec_ecdt_probe(void); 186 int acpi_ec_dsdt_probe(void); 187 int acpi_ec_ecdt_start(void); 188 void acpi_ec_block_transactions(void); 189 void acpi_ec_unblock_transactions(void); 190 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 191 acpi_handle handle, acpi_ec_query_func func, 192 void *data); 193 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 194 195 196 /*-------------------------------------------------------------------------- 197 Suspend/Resume 198 -------------------------------------------------------------------------- */ 199 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 200 extern int acpi_sleep_init(void); 201 #else 202 static inline int acpi_sleep_init(void) { return -ENXIO; } 203 #endif 204 205 #ifdef CONFIG_ACPI_SLEEP 206 void acpi_sleep_proc_init(void); 207 int suspend_nvs_alloc(void); 208 void suspend_nvs_free(void); 209 int suspend_nvs_save(void); 210 void suspend_nvs_restore(void); 211 #else 212 static inline void acpi_sleep_proc_init(void) {} 213 static inline int suspend_nvs_alloc(void) { return 0; } 214 static inline void suspend_nvs_free(void) {} 215 static inline int suspend_nvs_save(void) { return 0; } 216 static inline void suspend_nvs_restore(void) {} 217 #endif 218 219 /*-------------------------------------------------------------------------- 220 Device properties 221 -------------------------------------------------------------------------- */ 222 #define ACPI_DT_NAMESPACE_HID "PRP0001" 223 224 void acpi_init_properties(struct acpi_device *adev); 225 void acpi_free_properties(struct acpi_device *adev); 226 227 /*-------------------------------------------------------------------------- 228 Watchdog 229 -------------------------------------------------------------------------- */ 230 231 #ifdef CONFIG_ACPI_WATCHDOG 232 void acpi_watchdog_init(void); 233 #else 234 static inline void acpi_watchdog_init(void) {} 235 #endif 236 237 #endif /* _ACPI_INTERNAL_H_ */ 238