aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pci/hotplug/acpiphp.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pci/hotplug/acpiphp.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pci/hotplug/acpiphp.h')
-rw-r--r--drivers/pci/hotplug/acpiphp.h268
1 files changed, 268 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
new file mode 100644
index 000000000000..d9499874c8a9
--- /dev/null
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -0,0 +1,268 @@
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
10 *
11 * All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or (at
16 * your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
21 * NON INFRINGEMENT. See the GNU General Public License for more
22 * details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 * Send feedback to <gregkh@us.ibm.com>,
29 * <t-kochi@bq.jp.nec.com>
30 *
31 */
32
33#ifndef _ACPIPHP_H
34#define _ACPIPHP_H
35
36#include <linux/acpi.h>
37#include <linux/kobject.h> /* for KOBJ_NAME_LEN */
38#include "pci_hotplug.h"
39
40#define dbg(format, arg...) \
41 do { \
42 if (acpiphp_debug) \
43 printk(KERN_DEBUG "%s: " format, \
44 MY_NAME , ## arg); \
45 } while (0)
46#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
47#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
48#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
49
50/* name size which is used for entries in pcihpfs */
51#define SLOT_NAME_SIZE KOBJ_NAME_LEN /* {_SUN} */
52
53struct acpiphp_bridge;
54struct acpiphp_slot;
55struct pci_resource;
56
57/*
58 * struct slot - slot information for each *physical* slot
59 */
60struct slot {
61 u8 number;
62 struct hotplug_slot *hotplug_slot;
63 struct list_head slot_list;
64
65 struct acpiphp_slot *acpi_slot;
66};
67
68/*
69 * struct pci_resource - describes pci resource (mem, pfmem, io, bus)
70 */
71struct pci_resource {
72 struct pci_resource * next;
73 u64 base;
74 u32 length;
75};
76
77/**
78 * struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters
79 * @cache_line_size in DWORD
80 * @latency_timer in PCI clock
81 * @enable_SERR 0 or 1
82 * @enable_PERR 0 or 1
83 */
84struct hpp_param {
85 u8 cache_line_size;
86 u8 latency_timer;
87 u8 enable_SERR;
88 u8 enable_PERR;
89};
90
91
92/**
93 * struct acpiphp_bridge - PCI bridge information
94 *
95 * for each bridge device in ACPI namespace
96 */
97struct acpiphp_bridge {
98 struct list_head list;
99 acpi_handle handle;
100 struct acpiphp_slot *slots;
101 int type;
102 int nr_slots;
103
104 u8 seg;
105 u8 bus;
106 u8 sub;
107
108 u32 flags;
109
110 /* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */
111 struct pci_bus *pci_bus;
112
113 /* PCI-to-PCI bridge device */
114 struct pci_dev *pci_dev;
115
116 /* ACPI 2.0 _HPP parameters */
117 struct hpp_param hpp;
118
119 spinlock_t res_lock;
120
121 /* available resources on this bus */
122 struct pci_resource *mem_head;
123 struct pci_resource *p_mem_head;
124 struct pci_resource *io_head;
125 struct pci_resource *bus_head;
126};
127
128
129/**
130 * struct acpiphp_slot - PCI slot information
131 *
132 * PCI slot information for each *physical* PCI slot
133 */
134struct acpiphp_slot {
135 struct acpiphp_slot *next;
136 struct acpiphp_bridge *bridge; /* parent */
137 struct list_head funcs; /* one slot may have different
138 objects (i.e. for each function) */
139 struct semaphore crit_sect;
140
141 u32 id; /* slot id (serial #) for hotplug core */
142 u8 device; /* pci device# */
143
144 u32 sun; /* ACPI _SUN (slot unique number) */
145 u32 slotno; /* slot number relative to bridge */
146 u32 flags; /* see below */
147};
148
149
150/**
151 * struct acpiphp_func - PCI function information
152 *
153 * PCI function information for each object in ACPI namespace
154 * typically 8 objects per slot (i.e. for each PCI function)
155 */
156struct acpiphp_func {
157 struct acpiphp_slot *slot; /* parent */
158
159 struct list_head sibling;
160 struct pci_dev *pci_dev;
161
162 acpi_handle handle;
163
164 u8 function; /* pci function# */
165 u32 flags; /* see below */
166
167 /* resources used for this function */
168 struct pci_resource *mem_head;
169 struct pci_resource *p_mem_head;
170 struct pci_resource *io_head;
171 struct pci_resource *bus_head;
172};
173
174/**
175 * struct acpiphp_attention_info - device specific attention registration
176 *
177 * ACPI has no generic method of setting/getting attention status
178 * this allows for device specific driver registration
179 */
180struct acpiphp_attention_info
181{
182 int (*set_attn)(struct hotplug_slot *slot, u8 status);
183 int (*get_attn)(struct hotplug_slot *slot, u8 *status);
184 struct module *owner;
185};
186
187/* PCI bus bridge HID */
188#define ACPI_PCI_HOST_HID "PNP0A03"
189
190/* PCI BRIDGE type */
191#define BRIDGE_TYPE_HOST 0
192#define BRIDGE_TYPE_P2P 1
193
194/* ACPI _STA method value (ignore bit 4; battery present) */
195#define ACPI_STA_PRESENT (0x00000001)
196#define ACPI_STA_ENABLED (0x00000002)
197#define ACPI_STA_SHOW_IN_UI (0x00000004)
198#define ACPI_STA_FUNCTIONING (0x00000008)
199#define ACPI_STA_ALL (0x0000000f)
200
201/* bridge flags */
202#define BRIDGE_HAS_STA (0x00000001)
203#define BRIDGE_HAS_EJ0 (0x00000002)
204#define BRIDGE_HAS_HPP (0x00000004)
205#define BRIDGE_HAS_PS0 (0x00000010)
206#define BRIDGE_HAS_PS1 (0x00000020)
207#define BRIDGE_HAS_PS2 (0x00000040)
208#define BRIDGE_HAS_PS3 (0x00000080)
209
210/* slot flags */
211
212#define SLOT_POWEREDON (0x00000001)
213#define SLOT_ENABLED (0x00000002)
214#define SLOT_MULTIFUNCTION (0x00000004)
215
216/* function flags */
217
218#define FUNC_HAS_STA (0x00000001)
219#define FUNC_HAS_EJ0 (0x00000002)
220#define FUNC_HAS_PS0 (0x00000010)
221#define FUNC_HAS_PS1 (0x00000020)
222#define FUNC_HAS_PS2 (0x00000040)
223#define FUNC_HAS_PS3 (0x00000080)
224
225/* function prototypes */
226
227/* acpiphp_core.c */
228extern int acpiphp_register_attention(struct acpiphp_attention_info*info);
229extern int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
230
231/* acpiphp_glue.c */
232extern int acpiphp_glue_init (void);
233extern void acpiphp_glue_exit (void);
234extern int acpiphp_get_num_slots (void);
235extern struct acpiphp_slot *get_slot_from_id (int id);
236typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
237
238extern int acpiphp_enable_slot (struct acpiphp_slot *slot);
239extern int acpiphp_disable_slot (struct acpiphp_slot *slot);
240extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot);
241extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot);
242extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);
243extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
244extern u32 acpiphp_get_address (struct acpiphp_slot *slot);
245
246/* acpiphp_pci.c */
247extern struct pci_dev *acpiphp_allocate_pcidev (struct pci_bus *pbus, int dev, int fn);
248extern int acpiphp_configure_slot (struct acpiphp_slot *slot);
249extern int acpiphp_configure_function (struct acpiphp_func *func);
250extern void acpiphp_unconfigure_function (struct acpiphp_func *func);
251extern int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge);
252extern int acpiphp_init_func_resource (struct acpiphp_func *func);
253
254/* acpiphp_res.c */
255extern struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size);
256extern struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size);
257extern struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size);
258extern int acpiphp_resource_sort_and_combine (struct pci_resource **head);
259extern struct pci_resource *acpiphp_make_resource (u64 base, u32 length);
260extern void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to);
261extern void acpiphp_free_resource (struct pci_resource **res);
262extern void acpiphp_dump_resource (struct acpiphp_bridge *bridge); /* debug */
263extern void acpiphp_dump_func_resource (struct acpiphp_func *func); /* debug */
264
265/* variables */
266extern int acpiphp_debug;
267
268#endif /* _ACPIPHP_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 02:53:14 -0500