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 void acpi_initrd_initialize_tables(void); 24 acpi_status acpi_os_initialize1(void); 25 void init_acpi_device_notify(void); 26 int acpi_scan_init(void); 27 void acpi_pci_root_init(void); 28 void acpi_pci_link_init(void); 29 void acpi_processor_init(void); 30 void acpi_platform_init(void); 31 void acpi_pnp_init(void); 32 void acpi_int340x_thermal_init(void); 33 #ifdef CONFIG_ARM_AMBA 34 void acpi_amba_init(void); 35 #else 36 static inline void acpi_amba_init(void) {} 37 #endif 38 int acpi_sysfs_init(void); 39 void acpi_container_init(void); 40 void acpi_memory_hotplug_init(void); 41 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 42 int acpi_ioapic_add(struct acpi_pci_root *root); 43 int acpi_ioapic_remove(struct acpi_pci_root *root); 44 #else 45 static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; } 46 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 47 #endif 48 #ifdef CONFIG_ACPI_DOCK 49 void register_dock_dependent_device(struct acpi_device *adev, 50 acpi_handle dshandle); 51 int dock_notify(struct acpi_device *adev, u32 event); 52 void acpi_dock_add(struct acpi_device *adev); 53 #else 54 static inline void register_dock_dependent_device(struct acpi_device *adev, 55 acpi_handle dshandle) {} 56 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 57 static inline void acpi_dock_add(struct acpi_device *adev) {} 58 #endif 59 #ifdef CONFIG_X86 60 void acpi_cmos_rtc_init(void); 61 #else 62 static inline void acpi_cmos_rtc_init(void) {} 63 #endif 64 int acpi_rev_override_setup(char *str); 65 66 extern bool acpi_force_hot_remove; 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 /* -------------------------------------------------------------------------- 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 95 extern struct list_head acpi_bus_id_list; 96 97 struct acpi_device_bus_id { 98 char bus_id[15]; 99 unsigned int instance_no; 100 struct list_head node; 101 }; 102 103 int acpi_device_add(struct acpi_device *device, 104 void (*release)(struct device *)); 105 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 106 int type, unsigned long long sta); 107 int acpi_device_setup_files(struct acpi_device *dev); 108 void acpi_device_remove_files(struct acpi_device *dev); 109 void acpi_device_add_finalize(struct acpi_device *device); 110 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 111 bool acpi_device_is_present(struct acpi_device *adev); 112 bool acpi_device_is_battery(struct acpi_device *adev); 113 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 114 const struct device *dev); 115 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 116 117 /* -------------------------------------------------------------------------- 118 Device Matching and Notification 119 -------------------------------------------------------------------------- */ 120 struct acpi_device *acpi_companion_match(const struct device *dev); 121 int __acpi_device_uevent_modalias(struct acpi_device *adev, 122 struct kobj_uevent_env *env); 123 124 /* -------------------------------------------------------------------------- 125 Power Resource 126 -------------------------------------------------------------------------- */ 127 int acpi_power_init(void); 128 void acpi_power_resources_list_free(struct list_head *list); 129 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 130 struct list_head *list); 131 int acpi_add_power_resource(acpi_handle handle); 132 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 133 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 134 int acpi_device_sleep_wake(struct acpi_device *dev, 135 int enable, int sleep_state, int dev_state); 136 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 137 int acpi_power_on_resources(struct acpi_device *device, int state); 138 int acpi_power_transition(struct acpi_device *device, int state); 139 140 int acpi_wakeup_device_init(void); 141 142 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 143 void acpi_early_processor_set_pdc(void); 144 #else 145 static inline void acpi_early_processor_set_pdc(void) {} 146 #endif 147 148 /* -------------------------------------------------------------------------- 149 Embedded Controller 150 -------------------------------------------------------------------------- */ 151 struct acpi_ec { 152 acpi_handle handle; 153 unsigned long gpe; 154 unsigned long command_addr; 155 unsigned long data_addr; 156 bool global_lock; 157 unsigned long flags; 158 unsigned long reference_count; 159 struct mutex mutex; 160 wait_queue_head_t wait; 161 struct list_head list; 162 struct transaction *curr; 163 spinlock_t lock; 164 struct work_struct work; 165 unsigned long timestamp; 166 unsigned long nr_pending_queries; 167 }; 168 169 extern struct acpi_ec *first_ec; 170 171 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 172 /* External interfaces use first EC only, so remember */ 173 typedef int (*acpi_ec_query_func) (void *data); 174 175 int acpi_ec_init(void); 176 int acpi_ec_ecdt_probe(void); 177 int acpi_boot_ec_enable(void); 178 void acpi_ec_block_transactions(void); 179 void acpi_ec_unblock_transactions(void); 180 void acpi_ec_unblock_transactions_early(void); 181 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 182 acpi_handle handle, acpi_ec_query_func func, 183 void *data); 184 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 185 186 187 /*-------------------------------------------------------------------------- 188 Suspend/Resume 189 -------------------------------------------------------------------------- */ 190 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 191 extern int acpi_sleep_init(void); 192 #else 193 static inline int acpi_sleep_init(void) { return -ENXIO; } 194 #endif 195 196 #ifdef CONFIG_ACPI_SLEEP 197 void acpi_sleep_proc_init(void); 198 int suspend_nvs_alloc(void); 199 void suspend_nvs_free(void); 200 int suspend_nvs_save(void); 201 void suspend_nvs_restore(void); 202 #else 203 static inline void acpi_sleep_proc_init(void) {} 204 static inline int suspend_nvs_alloc(void) { return 0; } 205 static inline void suspend_nvs_free(void) {} 206 static inline int suspend_nvs_save(void) { return 0; } 207 static inline void suspend_nvs_restore(void) {} 208 #endif 209 210 /*-------------------------------------------------------------------------- 211 Device properties 212 -------------------------------------------------------------------------- */ 213 #define ACPI_DT_NAMESPACE_HID "PRP0001" 214 215 void acpi_init_properties(struct acpi_device *adev); 216 void acpi_free_properties(struct acpi_device *adev); 217 218 #endif /* _ACPI_INTERNAL_H_ */ 219