xref: /openbmc/linux/drivers/acpi/internal.h (revision d7a3d85e)
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  * You should have received a copy of the GNU General Public License along with
17  * this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #ifndef _ACPI_INTERNAL_H_
22 #define _ACPI_INTERNAL_H_
23 
24 #define PREFIX "ACPI: "
25 
26 acpi_status acpi_os_initialize1(void);
27 int init_acpi_device_notify(void);
28 int acpi_scan_init(void);
29 void acpi_pci_root_init(void);
30 void acpi_pci_link_init(void);
31 void acpi_processor_init(void);
32 void acpi_platform_init(void);
33 void acpi_pnp_init(void);
34 void acpi_int340x_thermal_init(void);
35 int acpi_sysfs_init(void);
36 void acpi_container_init(void);
37 void acpi_memory_hotplug_init(void);
38 #ifdef	CONFIG_ACPI_HOTPLUG_IOAPIC
39 int acpi_ioapic_add(struct acpi_pci_root *root);
40 int acpi_ioapic_remove(struct acpi_pci_root *root);
41 #else
42 static inline int acpi_ioapic_add(struct acpi_pci_root *root) { return 0; }
43 static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; }
44 #endif
45 #ifdef CONFIG_ACPI_DOCK
46 void register_dock_dependent_device(struct acpi_device *adev,
47 				    acpi_handle dshandle);
48 int dock_notify(struct acpi_device *adev, u32 event);
49 void acpi_dock_add(struct acpi_device *adev);
50 #else
51 static inline void register_dock_dependent_device(struct acpi_device *adev,
52 						  acpi_handle dshandle) {}
53 static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; }
54 static inline void acpi_dock_add(struct acpi_device *adev) {}
55 #endif
56 #ifdef CONFIG_X86
57 void acpi_cmos_rtc_init(void);
58 #else
59 static inline void acpi_cmos_rtc_init(void) {}
60 #endif
61 
62 extern bool acpi_force_hot_remove;
63 
64 void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
65 				    const char *name);
66 int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
67 				       const char *hotplug_profile_name);
68 void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
69 
70 #ifdef CONFIG_DEBUG_FS
71 extern struct dentry *acpi_debugfs_dir;
72 int acpi_debugfs_init(void);
73 #else
74 static inline void acpi_debugfs_init(void) { return; }
75 #endif
76 void acpi_lpss_init(void);
77 
78 void acpi_apd_init(void);
79 
80 acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src);
81 bool acpi_queue_hotplug_work(struct work_struct *work);
82 void acpi_device_hotplug(struct acpi_device *adev, u32 src);
83 bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
84 
85 /* --------------------------------------------------------------------------
86                      Device Node Initialization / Removal
87    -------------------------------------------------------------------------- */
88 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
89 			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
90 
91 int acpi_device_add(struct acpi_device *device,
92 		    void (*release)(struct device *));
93 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
94 			     int type, unsigned long long sta);
95 void acpi_device_add_finalize(struct acpi_device *device);
96 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
97 bool acpi_device_is_present(struct acpi_device *adev);
98 bool acpi_device_is_battery(struct acpi_device *adev);
99 
100 /* --------------------------------------------------------------------------
101                                   Power Resource
102    -------------------------------------------------------------------------- */
103 int acpi_power_init(void);
104 void acpi_power_resources_list_free(struct list_head *list);
105 int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
106 				 struct list_head *list);
107 int acpi_add_power_resource(acpi_handle handle);
108 void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
109 int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
110 int acpi_device_sleep_wake(struct acpi_device *dev,
111                            int enable, int sleep_state, int dev_state);
112 int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
113 int acpi_power_on_resources(struct acpi_device *device, int state);
114 int acpi_power_transition(struct acpi_device *device, int state);
115 
116 int acpi_wakeup_device_init(void);
117 
118 #ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
119 void acpi_early_processor_set_pdc(void);
120 #else
121 static inline void acpi_early_processor_set_pdc(void) {}
122 #endif
123 
124 /* --------------------------------------------------------------------------
125                                   Embedded Controller
126    -------------------------------------------------------------------------- */
127 struct acpi_ec {
128 	acpi_handle handle;
129 	unsigned long gpe;
130 	unsigned long command_addr;
131 	unsigned long data_addr;
132 	unsigned long global_lock;
133 	unsigned long flags;
134 	unsigned long reference_count;
135 	struct mutex mutex;
136 	wait_queue_head_t wait;
137 	struct list_head list;
138 	struct transaction *curr;
139 	spinlock_t lock;
140 	struct work_struct work;
141 };
142 
143 extern struct acpi_ec *first_ec;
144 
145 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
146 /* External interfaces use first EC only, so remember */
147 typedef int (*acpi_ec_query_func) (void *data);
148 
149 int acpi_ec_init(void);
150 int acpi_ec_ecdt_probe(void);
151 int acpi_boot_ec_enable(void);
152 void acpi_ec_block_transactions(void);
153 void acpi_ec_unblock_transactions(void);
154 void acpi_ec_unblock_transactions_early(void);
155 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
156 			      acpi_handle handle, acpi_ec_query_func func,
157 			      void *data);
158 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
159 
160 
161 /*--------------------------------------------------------------------------
162                                   Suspend/Resume
163   -------------------------------------------------------------------------- */
164 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
165 extern int acpi_sleep_init(void);
166 #else
167 static inline int acpi_sleep_init(void) { return -ENXIO; }
168 #endif
169 
170 #ifdef CONFIG_ACPI_SLEEP
171 int acpi_sleep_proc_init(void);
172 int suspend_nvs_alloc(void);
173 void suspend_nvs_free(void);
174 int suspend_nvs_save(void);
175 void suspend_nvs_restore(void);
176 #else
177 static inline int acpi_sleep_proc_init(void) { return 0; }
178 static inline int suspend_nvs_alloc(void) { return 0; }
179 static inline void suspend_nvs_free(void) {}
180 static inline int suspend_nvs_save(void) { return 0; }
181 static inline void suspend_nvs_restore(void) {}
182 #endif
183 
184 /*--------------------------------------------------------------------------
185 					Video
186   -------------------------------------------------------------------------- */
187 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
188 bool acpi_osi_is_win8(void);
189 #endif
190 
191 /*--------------------------------------------------------------------------
192 				Device properties
193   -------------------------------------------------------------------------- */
194 void acpi_init_properties(struct acpi_device *adev);
195 void acpi_free_properties(struct acpi_device *adev);
196 
197 #endif /* _ACPI_INTERNAL_H_ */
198