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1da177e4 LT |
1 | /* |
2 | * ACPI PCI Hot Plug Controller Driver | |
3 | * | |
4 | * Copyright (C) 1995,2001 Compaq Computer Corporation | |
5 | * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) | |
6 | * Copyright (C) 2001 IBM Corp. | |
7 | * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com) | |
8 | * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com) | |
9 | * Copyright (C) 2002,2003 NEC Corporation | |
42f49a6a RS |
10 | * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com) |
11 | * Copyright (C) 2003-2005 Hewlett Packard | |
1da177e4 LT |
12 | * |
13 | * All rights reserved. | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or (at | |
18 | * your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, but | |
21 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
23 | * NON INFRINGEMENT. See the GNU General Public License for more | |
24 | * details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
29 | * | |
30 | * Send feedback to <gregkh@us.ibm.com>, | |
31 | * <t-kochi@bq.jp.nec.com> | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifndef _ACPIPHP_H | |
36 | #define _ACPIPHP_H | |
37 | ||
38 | #include <linux/acpi.h> | |
aab0de24 | 39 | #include <linux/kobject.h> |
6aa4cdd0 | 40 | #include <linux/mutex.h> |
7a54f25c | 41 | #include <linux/pci_hotplug.h> |
1da177e4 LT |
42 | |
43 | #define dbg(format, arg...) \ | |
44 | do { \ | |
45 | if (acpiphp_debug) \ | |
46 | printk(KERN_DEBUG "%s: " format, \ | |
2a9d3521 | 47 | MY_NAME , ## arg); \ |
1da177e4 LT |
48 | } while (0) |
49 | #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) | |
50 | #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) | |
51 | #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) | |
52 | ||
1da177e4 LT |
53 | struct acpiphp_bridge; |
54 | struct acpiphp_slot; | |
1da177e4 LT |
55 | |
56 | /* | |
57 | * struct slot - slot information for each *physical* slot | |
58 | */ | |
59 | struct slot { | |
1da177e4 | 60 | struct hotplug_slot *hotplug_slot; |
1da177e4 | 61 | struct acpiphp_slot *acpi_slot; |
ac9e9891 | 62 | struct hotplug_slot_info info; |
1da177e4 LT |
63 | }; |
64 | ||
df77cd10 AC |
65 | static inline const char *slot_name(struct slot *slot) |
66 | { | |
67 | return hotplug_slot_name(slot->hotplug_slot); | |
68 | } | |
69 | ||
26e6c66e | 70 | /* |
1da177e4 LT |
71 | * struct acpiphp_bridge - PCI bridge information |
72 | * | |
73 | * for each bridge device in ACPI namespace | |
74 | */ | |
75 | struct acpiphp_bridge { | |
76 | struct list_head list; | |
77 | acpi_handle handle; | |
78 | struct acpiphp_slot *slots; | |
551bcb75 MT |
79 | |
80 | /* Ejectable PCI-to-PCI bridge (PCI bridge and PCI function) */ | |
81 | struct acpiphp_func *func; | |
82 | ||
1da177e4 LT |
83 | int type; |
84 | int nr_slots; | |
85 | ||
1da177e4 LT |
86 | u32 flags; |
87 | ||
88 | /* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */ | |
89 | struct pci_bus *pci_bus; | |
90 | ||
91 | /* PCI-to-PCI bridge device */ | |
92 | struct pci_dev *pci_dev; | |
93 | ||
94 | /* ACPI 2.0 _HPP parameters */ | |
783c49fc | 95 | struct hotplug_params hpp; |
1da177e4 LT |
96 | |
97 | spinlock_t res_lock; | |
1da177e4 LT |
98 | }; |
99 | ||
100 | ||
26e6c66e | 101 | /* |
1da177e4 LT |
102 | * struct acpiphp_slot - PCI slot information |
103 | * | |
104 | * PCI slot information for each *physical* PCI slot | |
105 | */ | |
106 | struct acpiphp_slot { | |
107 | struct acpiphp_slot *next; | |
108 | struct acpiphp_bridge *bridge; /* parent */ | |
109 | struct list_head funcs; /* one slot may have different | |
110 | objects (i.e. for each function) */ | |
e27da381 | 111 | struct slot *slot; |
6aa4cdd0 | 112 | struct mutex crit_sect; |
1da177e4 | 113 | |
1da177e4 LT |
114 | u8 device; /* pci device# */ |
115 | ||
b6adc195 | 116 | unsigned long long sun; /* ACPI _SUN (slot unique number) */ |
1da177e4 LT |
117 | u32 flags; /* see below */ |
118 | }; | |
119 | ||
120 | ||
26e6c66e | 121 | /* |
1da177e4 LT |
122 | * struct acpiphp_func - PCI function information |
123 | * | |
124 | * PCI function information for each object in ACPI namespace | |
125 | * typically 8 objects per slot (i.e. for each PCI function) | |
126 | */ | |
127 | struct acpiphp_func { | |
128 | struct acpiphp_slot *slot; /* parent */ | |
551bcb75 | 129 | struct acpiphp_bridge *bridge; /* Ejectable PCI-to-PCI bridge */ |
1da177e4 LT |
130 | |
131 | struct list_head sibling; | |
4e8662bb | 132 | struct notifier_block nb; |
1da177e4 LT |
133 | acpi_handle handle; |
134 | ||
135 | u8 function; /* pci function# */ | |
136 | u32 flags; /* see below */ | |
1da177e4 LT |
137 | }; |
138 | ||
26e6c66e | 139 | /* |
1da177e4 LT |
140 | * struct acpiphp_attention_info - device specific attention registration |
141 | * | |
142 | * ACPI has no generic method of setting/getting attention status | |
143 | * this allows for device specific driver registration | |
144 | */ | |
145 | struct acpiphp_attention_info | |
146 | { | |
147 | int (*set_attn)(struct hotplug_slot *slot, u8 status); | |
148 | int (*get_attn)(struct hotplug_slot *slot, u8 *status); | |
149 | struct module *owner; | |
150 | }; | |
151 | ||
600812ec ST |
152 | struct acpiphp_ioapic { |
153 | struct pci_dev *dev; | |
154 | u32 gsi_base; | |
155 | struct list_head list; | |
156 | }; | |
20416ea5 | 157 | |
1da177e4 LT |
158 | /* PCI bus bridge HID */ |
159 | #define ACPI_PCI_HOST_HID "PNP0A03" | |
160 | ||
161 | /* PCI BRIDGE type */ | |
162 | #define BRIDGE_TYPE_HOST 0 | |
163 | #define BRIDGE_TYPE_P2P 1 | |
164 | ||
165 | /* ACPI _STA method value (ignore bit 4; battery present) */ | |
166 | #define ACPI_STA_PRESENT (0x00000001) | |
167 | #define ACPI_STA_ENABLED (0x00000002) | |
168 | #define ACPI_STA_SHOW_IN_UI (0x00000004) | |
169 | #define ACPI_STA_FUNCTIONING (0x00000008) | |
170 | #define ACPI_STA_ALL (0x0000000f) | |
171 | ||
172 | /* bridge flags */ | |
173 | #define BRIDGE_HAS_STA (0x00000001) | |
174 | #define BRIDGE_HAS_EJ0 (0x00000002) | |
175 | #define BRIDGE_HAS_HPP (0x00000004) | |
176 | #define BRIDGE_HAS_PS0 (0x00000010) | |
177 | #define BRIDGE_HAS_PS1 (0x00000020) | |
178 | #define BRIDGE_HAS_PS2 (0x00000040) | |
179 | #define BRIDGE_HAS_PS3 (0x00000080) | |
180 | ||
181 | /* slot flags */ | |
182 | ||
183 | #define SLOT_POWEREDON (0x00000001) | |
184 | #define SLOT_ENABLED (0x00000002) | |
185 | #define SLOT_MULTIFUNCTION (0x00000004) | |
186 | ||
187 | /* function flags */ | |
188 | ||
189 | #define FUNC_HAS_STA (0x00000001) | |
190 | #define FUNC_HAS_EJ0 (0x00000002) | |
191 | #define FUNC_HAS_PS0 (0x00000010) | |
192 | #define FUNC_HAS_PS1 (0x00000020) | |
193 | #define FUNC_HAS_PS2 (0x00000040) | |
194 | #define FUNC_HAS_PS3 (0x00000080) | |
20416ea5 | 195 | #define FUNC_HAS_DCK (0x00000100) |
1da177e4 LT |
196 | |
197 | /* function prototypes */ | |
198 | ||
199 | /* acpiphp_core.c */ | |
200 | extern int acpiphp_register_attention(struct acpiphp_attention_info*info); | |
201 | extern int acpiphp_unregister_attention(struct acpiphp_attention_info *info); | |
e27da381 MT |
202 | extern int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot); |
203 | extern void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot); | |
1da177e4 LT |
204 | |
205 | /* acpiphp_glue.c */ | |
206 | extern int acpiphp_glue_init (void); | |
207 | extern void acpiphp_glue_exit (void); | |
208 | extern int acpiphp_get_num_slots (void); | |
1da177e4 LT |
209 | typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data); |
210 | ||
211 | extern int acpiphp_enable_slot (struct acpiphp_slot *slot); | |
212 | extern int acpiphp_disable_slot (struct acpiphp_slot *slot); | |
bfceafc5 | 213 | extern int acpiphp_eject_slot (struct acpiphp_slot *slot); |
1da177e4 LT |
214 | extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot); |
215 | extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot); | |
216 | extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot); | |
217 | extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot); | |
1da177e4 | 218 | |
1da177e4 LT |
219 | /* variables */ |
220 | extern int acpiphp_debug; | |
221 | ||
222 | #endif /* _ACPIPHP_H */ |