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35#ifndef _ACPIPHP_H
36#define _ACPIPHP_H
37
38#include <linux/acpi.h>
39#include <linux/mutex.h>
40#include <linux/pci_hotplug.h>
41
42struct acpiphp_context;
43struct acpiphp_bridge;
44struct acpiphp_slot;
45
46
47
48
49struct slot {
50 struct hotplug_slot *hotplug_slot;
51 struct acpiphp_slot *acpi_slot;
52 struct hotplug_slot_info info;
53 unsigned int sun;
54};
55
56static inline const char *slot_name(struct slot *slot)
57{
58 return hotplug_slot_name(slot->hotplug_slot);
59}
60
61
62
63
64
65
66struct acpiphp_bridge {
67 struct list_head list;
68 struct list_head slots;
69 struct kref ref;
70
71 struct acpiphp_context *context;
72
73 int nr_slots;
74
75
76 struct pci_bus *pci_bus;
77
78
79 struct pci_dev *pci_dev;
80
81 bool is_going_away;
82};
83
84
85
86
87
88
89
90struct acpiphp_slot {
91 struct list_head node;
92 struct pci_bus *bus;
93 struct list_head funcs;
94
95 struct slot *slot;
96
97 u8 device;
98 u32 flags;
99};
100
101
102
103
104
105
106
107
108struct acpiphp_func {
109 struct acpiphp_bridge *parent;
110 struct acpiphp_slot *slot;
111
112 struct list_head sibling;
113
114 u8 function;
115 u32 flags;
116};
117
118struct acpiphp_context {
119 struct acpi_hotplug_context hp;
120 struct acpiphp_func func;
121 struct acpiphp_bridge *bridge;
122 unsigned int refcount;
123};
124
125static inline struct acpiphp_context *to_acpiphp_context(struct acpi_hotplug_context *hp)
126{
127 return container_of(hp, struct acpiphp_context, hp);
128}
129
130static inline struct acpiphp_context *func_to_context(struct acpiphp_func *func)
131{
132 return container_of(func, struct acpiphp_context, func);
133}
134
135static inline struct acpi_device *func_to_acpi_device(struct acpiphp_func *func)
136{
137 return func_to_context(func)->hp.self;
138}
139
140static inline acpi_handle func_to_handle(struct acpiphp_func *func)
141{
142 return func_to_acpi_device(func)->handle;
143}
144
145struct acpiphp_root_context {
146 struct acpi_hotplug_context hp;
147 struct acpiphp_bridge *root_bridge;
148};
149
150static inline struct acpiphp_root_context *to_acpiphp_root_context(struct acpi_hotplug_context *hp)
151{
152 return container_of(hp, struct acpiphp_root_context, hp);
153}
154
155
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158
159
160
161struct acpiphp_attention_info
162{
163 int (*set_attn)(struct hotplug_slot *slot, u8 status);
164 int (*get_attn)(struct hotplug_slot *slot, u8 *status);
165 struct module *owner;
166};
167
168
169#define ACPI_STA_ALL (0x0000000f)
170
171
172
173#define SLOT_ENABLED (0x00000001)
174#define SLOT_IS_GOING_AWAY (0x00000002)
175
176
177
178#define FUNC_HAS_STA (0x00000001)
179#define FUNC_HAS_EJ0 (0x00000002)
180
181
182
183
184int acpiphp_register_attention(struct acpiphp_attention_info *info);
185int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
186int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot, unsigned int sun);
187void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
188
189
190typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
191
192int acpiphp_enable_slot(struct acpiphp_slot *slot);
193int acpiphp_disable_slot(struct acpiphp_slot *slot);
194u8 acpiphp_get_power_status(struct acpiphp_slot *slot);
195u8 acpiphp_get_attention_status(struct acpiphp_slot *slot);
196u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);
197u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot);
198
199
200extern bool acpiphp_disabled;
201
202#endif
203