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PCI hotplug: acpiphp whitespace cleanup
[deliverable/linux.git] / drivers / pci / hotplug / acpiphp.h
CommitLineData
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		 53struct acpiphp_bridge;
54struct acpiphp_slot;
1da177e4
LT		 55
56/*
57 * struct slot - slot information for each *physical* slot
58 */
59struct 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		 65static 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 */
75struct 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 */
106struct 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 */
127struct 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;
132 struct pci_dev *pci_dev;
4e8662bb 133 struct notifier_block nb;
1da177e4
LT		 134 acpi_handle handle;
135
136 u8 function; /* pci function# */
137 u32 flags; /* see below */
1da177e4
LT		 138};
139
26e6c66e 140/*
1da177e4
LT		 141 * struct acpiphp_attention_info - device specific attention registration
142 *
143 * ACPI has no generic method of setting/getting attention status
144 * this allows for device specific driver registration
145 */
146struct acpiphp_attention_info
147{
148 int (*set_attn)(struct hotplug_slot *slot, u8 status);
149 int (*get_attn)(struct hotplug_slot *slot, u8 *status);
150 struct module *owner;
151};
152
600812ec
ST		 153struct acpiphp_ioapic {
154 struct pci_dev *dev;
155 u32 gsi_base;
156 struct list_head list;
157};
20416ea5 158
1da177e4
LT		 159/* PCI bus bridge HID */
160#define ACPI_PCI_HOST_HID "PNP0A03"
161
162/* PCI BRIDGE type */
163#define BRIDGE_TYPE_HOST 0
164#define BRIDGE_TYPE_P2P 1
165
166/* ACPI _STA method value (ignore bit 4; battery present) */
167#define ACPI_STA_PRESENT (0x00000001)
168#define ACPI_STA_ENABLED (0x00000002)
169#define ACPI_STA_SHOW_IN_UI (0x00000004)
170#define ACPI_STA_FUNCTIONING (0x00000008)
171#define ACPI_STA_ALL (0x0000000f)
172
173/* bridge flags */
174#define BRIDGE_HAS_STA (0x00000001)
175#define BRIDGE_HAS_EJ0 (0x00000002)
176#define BRIDGE_HAS_HPP (0x00000004)
177#define BRIDGE_HAS_PS0 (0x00000010)
178#define BRIDGE_HAS_PS1 (0x00000020)
179#define BRIDGE_HAS_PS2 (0x00000040)
180#define BRIDGE_HAS_PS3 (0x00000080)
181
182/* slot flags */
183
184#define SLOT_POWEREDON (0x00000001)
185#define SLOT_ENABLED (0x00000002)
186#define SLOT_MULTIFUNCTION (0x00000004)
187
188/* function flags */
189
190#define FUNC_HAS_STA (0x00000001)
191#define FUNC_HAS_EJ0 (0x00000002)
192#define FUNC_HAS_PS0 (0x00000010)
193#define FUNC_HAS_PS1 (0x00000020)
194#define FUNC_HAS_PS2 (0x00000040)
195#define FUNC_HAS_PS3 (0x00000080)
20416ea5 196#define FUNC_HAS_DCK (0x00000100)
1da177e4
LT		 197
198/* function prototypes */
199
200/* acpiphp_core.c */
201extern int acpiphp_register_attention(struct acpiphp_attention_info*info);
202extern int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
e27da381
MT		 203extern int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
204extern void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
1da177e4
LT		 205
206/* acpiphp_glue.c */
207extern int acpiphp_glue_init (void);
208extern void acpiphp_glue_exit (void);
209extern int acpiphp_get_num_slots (void);
1da177e4
LT		 210typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
211
212extern int acpiphp_enable_slot (struct acpiphp_slot *slot);
213extern int acpiphp_disable_slot (struct acpiphp_slot *slot);
bfceafc5 214extern int acpiphp_eject_slot (struct acpiphp_slot *slot);
1da177e4
LT		 215extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot);
216extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot);
217extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);
218extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
1da177e4 219
1da177e4
LT		 220/* variables */
221extern int acpiphp_debug;
222
223#endif /* _ACPIPHP_H */
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