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
|
#ifndef _PCIHDR_H
#define _PCIHDR_H
/*
* OpenBIOS - free your system!
* ( PCI headers )
*
* This program is part of a free implementation of the IEEE 1275-1994
* Standard for Boot (Initialization Configuration) Firmware.
*
* Copyright (C) 2001-2005 Stefan Reinauer
* Copyright (C) 2006 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*
*/
/* **************************************************************************
*
* PCI Header and PCI Data Structures, as defined in
* PCI FIRMWARE SPECIFICATION, REV. 3.
* taken from openbios/utils/romheaders/romheaders.c
*
* (C) Copyright 2005 IBM Corporation. All Rights Reserved.
* Module Author: David L. Paktor dlpaktor@us.ibm.com
*
*
**************************************************************************** */
/* **************************************************************************
*
* Structures:
* rom_header_t Type definition for a PCI ROM Header
* pci_data_t Type definition for a PCI Data Header
*
*
* Macros:
* PCI_DATA_HDR Construct the PCI Data Header signature
* as an integer. Use this to create
* a constant, in order to allow its
* value to be calculated at compile-
* -time rather than at run-time.
* BIG_ENDIAN_WORD_FETCH Fetch a big-endian word from 2
* unsigned chars in sequence.
* LITTLE_ENDIAN_WORD_FETCH ...... little-endian word from 2 ....
* BIG_ENDIAN_LONG_FETCH ...... big-endian long from 4 ...
* LITTLE_ENDIAN_LONG_FETCH ...... little-endian long from 4 ....
* LITTLE_ENDIAN_TRIPLET_FETCH ...... little-endian triplet from 3 ...
* CLASS_CODE_FETCH Special fetch for Class-Code triplet
* BIG_ENDIAN_WORD_STORE Store an integer into 2 unsigned
* chars in big-endian sequence
* LITTLE_ENDIAN_WORD_STORE ..... into 2 ... little-endian ...
* BIG_ENDIAN_LONG_STORE ..... into 4 ... big-endian ...
* LITTLE_ENDIAN_LONG_STORE ..... into 4 ... little-endian ...
* LITTLE_ENDIAN_TRIPLET_STORE ..... 3 ... little-endian triplet ...
* CLASS_CODE_STORE Special store for Class-Code triplet
*
**************************************************************************** */
/* **************************************************************************
*
* Still to be done:
* The "Endian" macros are beginning to appear to be more
* generally useful that previously thought, and should,
* perhaps, be moved into types.h
*
**************************************************************************** */
#include "types.h"
/* Construct the PCI Data Header signature as an integer */
#define PCI_DATA_HDR (u32) ( ('P' << 24) | ('C' << 16) | ('I' << 8) | 'R' )
#ifndef bswap_16
#define bswap_16(x) \
((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
#endif
#define little_word(x) bswap_16(x)
/* These are mnemonics for the programmer. The compiler doesn't care... */
#define le_u16(x) u8 x[2]
#define be_u16(x) u8 x[2]
#define le_u32(x) u8 x[4]
#define be_u32(x) u8 x[4]
/* Fetch a big-endian word from 2 unsigned chars in sequence */
#define BIG_ENDIAN_WORD_FETCH(x) (u16)( (x[0] << 8) | x[1] )
/* Fetch a little-endian word from 2 unsigned chars in sequence */
#define LITTLE_ENDIAN_WORD_FETCH(x) (u16)( (x[1] << 8) | x[0] )
/* Fetch a big-endian long from 4 unsigned chars in sequence */
#define BIG_ENDIAN_LONG_FETCH(x) (u32)( (x[0] << 24) | (x[1] << 16) | (x[2] << 8) | x[3] )
/* Fetch a little-endian long from 4 unsigned chars in sequence */
#define LITTLE_ENDIAN_LONG_FETCH(x) (u32)( (x[3] << 24) | (x[2] << 16) | (x[1] << 8) | x[0] )
#define LE_U24(x) u8 x[3]
/* Fetch a little-endian triplet from 3 unsigned chars in sequence */
#define LITTLE_ENDIAN_TRIPLET_FETCH(x) (u32)( (x[2] << 16) | (x[1] << 8) | x[0] )
/* Special case for Class-Code triplet: lo, mid, hi */
#define class_code_u24(x) u8 x[3]
/* Special fetch for Class-Code triplet */
#define CLASS_CODE_FETCH(x) (u32)( (x[2] << 16) | (x[1] << 8) | x[0] )
/* Special store for Class-Code triplet */
#define CLASS_CODE_STORE(dest,x) \
dest[2] = (u8)( x >> 16); dest[1] = (u8)(x >> 8); dest[0] = (u8)x;
/* NOTE Class-Code triplet is the same as little-endian triplet */
/* Change over some time, eh? */
/* Store an integer into 2 unsigned chars in big-endian sequence */
#define BIG_ENDIAN_WORD_STORE(dest,x) dest[0] = (u8)(x >> 8); dest[1]=(u8)x;
/* Store an integer into 2 unsigned chars in little-endian sequence */
#define LITTLE_ENDIAN_WORD_STORE(dest,x) dest[1] = (u8)(x >> 8); dest[0]=(u8)x;
/* Store an integer into 4 unsigned chars in big-endian sequence */
#define BIG_ENDIAN_LONG_STORE(dest,x) \
dest[0] = (u8)(x >> 24); dest[1] =(u8)( x >> 16); \
dest[2] = (u8)(x >> 8); dest[3] =(u8)x;
/* Store an integer into 4 unsigned chars in little-endian sequence */
#define LITTLE_ENDIAN_LONG_STORE(dest,x) \
dest[3] = (u8)(x >> 24); dest[2] =(u8)( x >> 16); \
dest[1] = (u8)(x >> 8); dest[0] =(u8)x;
/* Store an integer into 3 unsigned chars in little-endian triplet sequence */
#define LITTLE_ENDIAN_TRIPLET_STORE(dest,x) \
dest[2] = (u8)( x >> 16); dest[1] = (u8)(x >> 8); dest[0] = (u8)x;
typedef struct {
be_u16(signature);
u8 reserved[0x16];
le_u16(data_ptr);
le_u16(padd);
} rom_header_t;
typedef struct {
be_u32 (signature);
le_u16 (vendor);
le_u16 (device);
le_u16 (vpd);
le_u16 (dlen);
u8 drevision;
class_code_u24 (class_code);
le_u16 (ilen);
le_u16 (irevision);
u8 code_type;
u8 last_image_flag;
u16 reserved_2;
} pci_data_t;
#define PCI_DATA_STRUCT_REV 0
/* Prototypes for functions exported from devsupp/pci/classcodes.c */
char *pci_device_class_name( u32 code);
char *pci_code_type_name(u8 code);
#endif /* _PCIHDR_H */
|
