1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
/* $OpenBSD: pcivar.h,v 1.58 2009/04/06 20:51:48 kettenis Exp $ */
/* $NetBSD: pcivar.h,v 1.23 1997/06/06 23:48:05 thorpej Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles Hannum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_PCI_PCIVAR_H_
#define _DEV_PCI_PCIVAR_H_
/*
* Definitions for PCI autoconfiguration.
*
* This file describes types and functions which are used for PCI
* configuration. Some of this information is machine-specific, and is
* provided by pci_machdep.h.
*/
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/extent.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
/*
* Structures and definitions needed by the machine-dependent header.
*/
typedef u_int32_t pcireg_t; /* configuration space register XXX */
/*
* Power Management (PCI 2.2)
*/
#define PCI_PWR_D0 0
#define PCI_PWR_D1 1
#define PCI_PWR_D2 2
#define PCI_PWR_D3 3
#ifdef _KERNEL
struct pcibus_attach_args;
struct pci_softc;
/*
* Machine-dependent definitions.
*/
#if defined(__alpha__)
#include <alpha/pci/pci_machdep.h>
#elif defined(__i386__)
#include <i386/pci/pci_machdep.h>
#elif defined(__powerpc__)
#include <powerpc/pci/pci_machdep.h>
#elif defined(__sgi__)
#include <sgi/pci/pci_machdep.h>
#else
#include <machine/pci_machdep.h>
#endif
/*
* PCI bus attach arguments.
*/
struct pcibus_attach_args {
char *pba_busname; /* XXX should be common */
bus_space_tag_t pba_iot; /* pci i/o space tag */
bus_space_tag_t pba_memt; /* pci mem space tag */
bus_dma_tag_t pba_dmat; /* DMA tag */
pci_chipset_tag_t pba_pc;
struct extent *pba_ioex;
struct extent *pba_memex;
int pba_domain; /* PCI domain */
int pba_bus; /* PCI bus number */
/*
* Pointer to the pcitag of our parent bridge. If there is no
* parent bridge, then we assume we are a root bus.
*/
pcitag_t *pba_bridgetag;
pci_intr_handle_t *pba_bridgeih;
/*
* Interrupt swizzling information. These fields
* are only used by secondary busses.
*/
u_int pba_intrswiz; /* how to swizzle pins */
pcitag_t pba_intrtag; /* intr. appears to come from here */
};
/*
* PCI device attach arguments.
*/
struct pci_attach_args {
bus_space_tag_t pa_iot; /* pci i/o space tag */
bus_space_tag_t pa_memt; /* pci mem space tag */
bus_dma_tag_t pa_dmat; /* DMA tag */
pci_chipset_tag_t pa_pc;
int pa_flags; /* flags; see below */
struct extent *pa_ioex;
struct extent *pa_memex;
u_int pa_domain;
u_int pa_bus;
u_int pa_device;
u_int pa_function;
pcitag_t pa_tag;
pcireg_t pa_id, pa_class;
pcitag_t *pa_bridgetag;
pci_intr_handle_t *pa_bridgeih;
/*
* Interrupt information.
*
* "Intrline" is used on systems whose firmware puts
* the right routing data into the line register in
* configuration space. The rest are used on systems
* that do not.
*/
u_int pa_intrswiz; /* how to swizzle pins if ppb */
pcitag_t pa_intrtag; /* intr. appears to come from here */
pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */
pci_intr_line_t pa_intrline; /* intr. routing information */
pci_intr_pin_t pa_rawintrpin; /* unswizzled pin */
};
/*
* Flags given in the bus and device attachment args.
*
* OpenBSD doesn't actually use them yet -- csapuntz@cvs.openbsd.org
*/
#define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */
#define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */
#define PCI_FLAGS_MRL_OKAY 0x04 /* Memory Read Line okay */
#define PCI_FLAGS_MRM_OKAY 0x08 /* Memory Read Multiple okay */
#define PCI_FLAGS_MWI_OKAY 0x10 /* Memory Write and Invalidate
okay */
/*
*
*/
struct pci_quirkdata {
pci_vendor_id_t vendor; /* Vendor ID */
pci_product_id_t product; /* Product ID */
int quirks; /* quirks; see below */
};
#define PCI_QUIRK_MULTIFUNCTION 1
#define PCI_QUIRK_MONOFUNCTION 2
struct pci_softc {
struct device sc_dev;
bus_space_tag_t sc_iot, sc_memt;
bus_dma_tag_t sc_dmat;
pci_chipset_tag_t sc_pc;
struct extent *sc_ioex;
struct extent *sc_memex;
void *sc_powerhook;
LIST_HEAD(, pci_dev) sc_devs;
int sc_domain, sc_bus, sc_maxndevs;
pcitag_t *sc_bridgetag;
pci_intr_handle_t *sc_bridgeih;
u_int sc_intrswiz;
pcitag_t sc_intrtag;
};
extern int pci_ndomains;
/*
* Locators devices that attach to 'pcibus', as specified to config.
*/
#define pcibuscf_bus cf_loc[0]
#define PCIBUS_UNK_BUS -1 /* wildcarded 'bus' */
/*
* Locators for PCI devices, as specified to config.
*/
#define pcicf_dev cf_loc[0]
#define PCI_UNK_DEV -1 /* wildcarded 'dev' */
#define pcicf_function cf_loc[1]
#define PCI_UNK_FUNCTION -1 /* wildcarded 'function' */
/*
* Configuration space access and utility functions. (Note that most,
* e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.)
*/
int pci_mapreg_probe(pci_chipset_tag_t, pcitag_t, int, pcireg_t *);
pcireg_t pci_mapreg_type(pci_chipset_tag_t, pcitag_t, int);
int pci_mapreg_info(pci_chipset_tag_t, pcitag_t, int, pcireg_t,
bus_addr_t *, bus_size_t *, int *);
int pci_mapreg_map(struct pci_attach_args *, int, pcireg_t, int,
bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *,
bus_size_t *, bus_size_t);
int pci_io_find(pci_chipset_tag_t, pcitag_t, int, bus_addr_t *,
bus_size_t *);
int pci_mem_find(pci_chipset_tag_t, pcitag_t, int, bus_addr_t *,
bus_size_t *, int *);
int pci_get_capability(pci_chipset_tag_t, pcitag_t, int,
int *, pcireg_t *);
struct pci_matchid {
pci_vendor_id_t pm_vid;
pci_product_id_t pm_pid;
};
int pci_matchbyid(struct pci_attach_args *, const struct pci_matchid *, int);
int pci_set_powerstate(pci_chipset_tag_t, pcitag_t, int);
/*
* Vital Product Data (PCI 2.2)
*/
int pci_vpd_read(pci_chipset_tag_t, pcitag_t, int, int, pcireg_t *);
int pci_vpd_write(pci_chipset_tag_t, pcitag_t, int, int, pcireg_t *);
/*
* Helper functions for autoconfiguration.
*/
const char *pci_findvendor(pcireg_t);
const char *pci_findproduct(pcireg_t);
int pci_find_device(struct pci_attach_args *pa,
int (*match)(struct pci_attach_args *));
int pci_probe_device(struct pci_softc *, pcitag_t tag,
int (*)(struct pci_attach_args *), struct pci_attach_args *);
int pci_detach_devices(struct pci_softc *, int);
void pci_devinfo(pcireg_t, pcireg_t, int, char *, size_t);
const struct pci_quirkdata *
pci_lookup_quirkdata(pci_vendor_id_t, pci_product_id_t);
void pciagp_set_pchb(struct pci_attach_args *);
#endif /* _KERNEL */
#endif /* _DEV_PCI_PCIVAR_H_ */
|
