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 extern bool acpi_force_hot_remove; 69 70 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 71 const char *name); 72 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 73 const char *hotplug_profile_name); 74 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 75 76 #ifdef CONFIG_DEBUG_FS 77 extern struct dentry *acpi_debugfs_dir; 78 void acpi_debugfs_init(void); 79 #else 80 static inline void acpi_debugfs_init(void) { return; } 81 #endif 82 void acpi_lpss_init(void); 83 84 void acpi_apd_init(void); 85 86 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 87 bool acpi_queue_hotplug_work(struct work_struct *work); 88 void acpi_device_hotplug(struct acpi_device *adev, u32 src); 89 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 90 91 acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 92 void acpi_scan_table_handler(u32 event, void *table, void *context); 93 94 /* -------------------------------------------------------------------------- 95 Device Node Initialization / Removal 96 -------------------------------------------------------------------------- */ 97 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 98 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 99 100 extern struct list_head acpi_bus_id_list; 101 102 struct acpi_device_bus_id { 103 char bus_id[15]; 104 unsigned int instance_no; 105 struct list_head node; 106 }; 107 108 int acpi_device_add(struct acpi_device *device, 109 void (*release)(struct device *)); 110 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 111 int type, unsigned long long sta); 112 int acpi_device_setup_files(struct acpi_device *dev); 113 void acpi_device_remove_files(struct acpi_device *dev); 114 void acpi_device_add_finalize(struct acpi_device *device); 115 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 116 bool acpi_device_is_present(struct acpi_device *adev); 117 bool acpi_device_is_battery(struct acpi_device *adev); 118 bool acpi_device_is_first_physical_node(struct acpi_device *adev, 119 const struct device *dev); 120 121 /* -------------------------------------------------------------------------- 122 Device Matching and Notification 123 -------------------------------------------------------------------------- */ 124 struct acpi_device *acpi_companion_match(const struct device *dev); 125 int __acpi_device_uevent_modalias(struct acpi_device *adev, 126 struct kobj_uevent_env *env); 127 128 /* -------------------------------------------------------------------------- 129 Power Resource 130 -------------------------------------------------------------------------- */ 131 int acpi_power_init(void); 132 void acpi_power_resources_list_free(struct list_head *list); 133 int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 134 struct list_head *list); 135 int acpi_add_power_resource(acpi_handle handle); 136 void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 137 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 138 int acpi_device_sleep_wake(struct acpi_device *dev, 139 int enable, int sleep_state, int dev_state); 140 int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 141 int acpi_power_on_resources(struct acpi_device *device, int state); 142 int acpi_power_transition(struct acpi_device *device, int state); 143 144 int acpi_wakeup_device_init(void); 145 146 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 147 void acpi_early_processor_set_pdc(void); 148 #else 149 static inline void acpi_early_processor_set_pdc(void) {} 150 #endif 151 152 #ifdef CONFIG_X86 153 void acpi_early_processor_osc(void); 154 #else 155 static inline void acpi_early_processor_osc(void) {} 156 #endif 157 158 /* -------------------------------------------------------------------------- 159 Embedded Controller 160 -------------------------------------------------------------------------- */ 161 struct acpi_ec { 162 acpi_handle handle; 163 unsigned long gpe; 164 unsigned long command_addr; 165 unsigned long data_addr; 166 bool global_lock; 167 unsigned long flags; 168 unsigned long reference_count; 169 struct mutex mutex; 170 wait_queue_head_t wait; 171 struct list_head list; 172 struct transaction *curr; 173 spinlock_t lock; 174 struct work_struct work; 175 unsigned long timestamp; 176 unsigned long nr_pending_queries; 177 bool busy_polling; 178 unsigned int polling_guard; 179 }; 180 181 extern struct acpi_ec *first_ec; 182 183 /* If we find an EC via the ECDT, we need to keep a ptr to its context */ 184 /* External interfaces use first EC only, so remember */ 185 typedef int (*acpi_ec_query_func) (void *data); 186 187 int acpi_ec_init(void); 188 int acpi_ec_ecdt_probe(void); 189 int acpi_ec_dsdt_probe(void); 190 int acpi_ec_ecdt_start(void); 191 void acpi_ec_block_transactions(void); 192 void acpi_ec_unblock_transactions(void); 193 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 194 acpi_handle handle, acpi_ec_query_func func, 195 void *data); 196 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 197 198 199 /*-------------------------------------------------------------------------- 200 Suspend/Resume 201 -------------------------------------------------------------------------- */ 202 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 203 extern int acpi_sleep_init(void); 204 #else 205 static inline int acpi_sleep_init(void) { return -ENXIO; } 206 #endif 207 208 #ifdef CONFIG_ACPI_SLEEP 209 void acpi_sleep_proc_init(void); 210 int suspend_nvs_alloc(void); 211 void suspend_nvs_free(void); 212 int suspend_nvs_save(void); 213 void suspend_nvs_restore(void); 214 #else 215 static inline void acpi_sleep_proc_init(void) {} 216 static inline int suspend_nvs_alloc(void) { return 0; } 217 static inline void suspend_nvs_free(void) {} 218 static inline int suspend_nvs_save(void) { return 0; } 219 static inline void suspend_nvs_restore(void) {} 220 #endif 221 222 /*-------------------------------------------------------------------------- 223 Device properties 224 -------------------------------------------------------------------------- */ 225 #define ACPI_DT_NAMESPACE_HID "PRP0001" 226 227 void acpi_init_properties(struct acpi_device *adev); 228 void acpi_free_properties(struct acpi_device *adev); 229 230 /*-------------------------------------------------------------------------- 231 Watchdog 232 -------------------------------------------------------------------------- */ 233 234 #ifdef CONFIG_ACPI_WATCHDOG 235 void acpi_watchdog_init(void); 236 #else 237 static inline void acpi_watchdog_init(void) {} 238 #endif 239 240 #endif /* _ACPI_INTERNAL_H_ */ 241