FreeBSD/Linux Kernel Cross Reference
sys/sys/pciio.h
1 /*-
2 * Copyright (c) 1997, Stefan Esser <se@FreeBSD.ORG>
3 * Copyright (c) 1997, 1998, 1999, Kenneth D. Merry <ken@FreeBSD.ORG>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice unmodified, this list of conditions, and the following
11 * disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * $FreeBSD: releng/10.1/sys/sys/pciio.h 262134 2014-02-17 22:19:49Z jhb $
28 *
29 */
30
31 #ifndef _SYS_PCIIO_H_
32 #define _SYS_PCIIO_H_
33
34 #include <sys/ioccom.h>
35
36 #define PCI_MAXNAMELEN 16
37
38 typedef enum {
39 PCI_GETCONF_LAST_DEVICE,
40 PCI_GETCONF_LIST_CHANGED,
41 PCI_GETCONF_MORE_DEVS,
42 PCI_GETCONF_ERROR
43 } pci_getconf_status;
44
45 typedef enum {
46 PCI_GETCONF_NO_MATCH = 0x0000,
47 PCI_GETCONF_MATCH_DOMAIN = 0x0001,
48 PCI_GETCONF_MATCH_BUS = 0x0002,
49 PCI_GETCONF_MATCH_DEV = 0x0004,
50 PCI_GETCONF_MATCH_FUNC = 0x0008,
51 PCI_GETCONF_MATCH_NAME = 0x0010,
52 PCI_GETCONF_MATCH_UNIT = 0x0020,
53 PCI_GETCONF_MATCH_VENDOR = 0x0040,
54 PCI_GETCONF_MATCH_DEVICE = 0x0080,
55 PCI_GETCONF_MATCH_CLASS = 0x0100
56 } pci_getconf_flags;
57
58 struct pcisel {
59 u_int32_t pc_domain; /* domain number */
60 u_int8_t pc_bus; /* bus number */
61 u_int8_t pc_dev; /* device on this bus */
62 u_int8_t pc_func; /* function on this device */
63 };
64
65 struct pci_conf {
66 struct pcisel pc_sel; /* domain+bus+slot+function */
67 u_int8_t pc_hdr; /* PCI header type */
68 u_int16_t pc_subvendor; /* card vendor ID */
69 u_int16_t pc_subdevice; /* card device ID, assigned by
70 card vendor */
71 u_int16_t pc_vendor; /* chip vendor ID */
72 u_int16_t pc_device; /* chip device ID, assigned by
73 chip vendor */
74 u_int8_t pc_class; /* chip PCI class */
75 u_int8_t pc_subclass; /* chip PCI subclass */
76 u_int8_t pc_progif; /* chip PCI programming interface */
77 u_int8_t pc_revid; /* chip revision ID */
78 char pd_name[PCI_MAXNAMELEN + 1]; /* device name */
79 u_long pd_unit; /* device unit number */
80 };
81
82 struct pci_match_conf {
83 struct pcisel pc_sel; /* domain+bus+slot+function */
84 char pd_name[PCI_MAXNAMELEN + 1]; /* device name */
85 u_long pd_unit; /* Unit number */
86 u_int16_t pc_vendor; /* PCI Vendor ID */
87 u_int16_t pc_device; /* PCI Device ID */
88 u_int8_t pc_class; /* PCI class */
89 pci_getconf_flags flags; /* Matching expression */
90 };
91
92 struct pci_conf_io {
93 u_int32_t pat_buf_len; /* pattern buffer length */
94 u_int32_t num_patterns; /* number of patterns */
95 struct pci_match_conf *patterns; /* pattern buffer */
96 u_int32_t match_buf_len; /* match buffer length */
97 u_int32_t num_matches; /* number of matches returned */
98 struct pci_conf *matches; /* match buffer */
99 u_int32_t offset; /* offset into device list */
100 u_int32_t generation; /* device list generation */
101 pci_getconf_status status; /* request status */
102 };
103
104 struct pci_io {
105 struct pcisel pi_sel; /* device to operate on */
106 int pi_reg; /* configuration register to examine */
107 int pi_width; /* width (in bytes) of read or write */
108 u_int32_t pi_data; /* data to write or result of read */
109 };
110
111 struct pci_bar_io {
112 struct pcisel pbi_sel; /* device to operate on */
113 int pbi_reg; /* starting address of BAR */
114 int pbi_enabled; /* decoding enabled */
115 uint64_t pbi_base; /* current value of BAR */
116 uint64_t pbi_length; /* length of BAR */
117 };
118
119 struct pci_vpd_element {
120 char pve_keyword[2];
121 uint8_t pve_flags;
122 uint8_t pve_datalen;
123 uint8_t pve_data[0];
124 };
125
126 #define PVE_FLAG_IDENT 0x01 /* Element is the string identifier */
127 #define PVE_FLAG_RW 0x02 /* Element is read/write */
128
129 #define PVE_NEXT(pve) \
130 ((struct pci_vpd_element *)((char *)(pve) + \
131 sizeof(struct pci_vpd_element) + (pve)->pve_datalen))
132
133 struct pci_list_vpd_io {
134 struct pcisel plvi_sel; /* device to operate on */
135 size_t plvi_len; /* size of the data area */
136 struct pci_vpd_element *plvi_data;
137 };
138
139 #define PCIOCGETCONF _IOWR('p', 5, struct pci_conf_io)
140 #define PCIOCREAD _IOWR('p', 2, struct pci_io)
141 #define PCIOCWRITE _IOWR('p', 3, struct pci_io)
142 #define PCIOCATTACHED _IOWR('p', 4, struct pci_io)
143 #define PCIOCGETBAR _IOWR('p', 6, struct pci_bar_io)
144 #define PCIOCLISTVPD _IOWR('p', 7, struct pci_list_vpd_io)
145
146 #endif /* !_SYS_PCIIO_H_ */
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