Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6
[linux-2.6] / include / linux / isapnp.h
1 /*
2  *  ISA Plug & Play support
3  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  *
20  */
21
22 #ifndef LINUX_ISAPNP_H
23 #define LINUX_ISAPNP_H
24
25 #include <linux/config.h>
26 #include <linux/errno.h>
27 #include <linux/pnp.h>
28
29 /*
30  *  Configuration registers (TODO: change by specification)
31  */ 
32
33 #define ISAPNP_CFG_ACTIVATE             0x30    /* byte */
34 #define ISAPNP_CFG_MEM                  0x40    /* 4 * dword */
35 #define ISAPNP_CFG_PORT                 0x60    /* 8 * word */
36 #define ISAPNP_CFG_IRQ                  0x70    /* 2 * word */
37 #define ISAPNP_CFG_DMA                  0x74    /* 2 * byte */
38
39 /*
40  *
41  */
42
43 #define ISAPNP_VENDOR(a,b,c)    (((((a)-'A'+1)&0x3f)<<2)|\
44                                 ((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
45                                 ((((c)-'A'+1)&0x1f)<<8))
46 #define ISAPNP_DEVICE(x)        ((((x)&0xf000)>>8)|\
47                                  (((x)&0x0f00)>>8)|\
48                                  (((x)&0x00f0)<<8)|\
49                                  (((x)&0x000f)<<8))
50 #define ISAPNP_FUNCTION(x)      ISAPNP_DEVICE(x)
51
52 /*
53  *
54  */
55
56 #ifdef __KERNEL__
57
58 #define DEVICE_COUNT_COMPATIBLE 4
59
60 #define ISAPNP_ANY_ID           0xffff
61 #define ISAPNP_CARD_DEVS        8
62
63 #define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
64                 .card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
65 #define ISAPNP_CARD_END \
66                 .card_vendor = 0, .card_device = 0
67 #define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
68                 { .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
69
70 /* export used IDs outside module */
71 #define ISAPNP_CARD_TABLE(name) \
72                 MODULE_GENERIC_TABLE(isapnp_card, name)
73
74 struct isapnp_card_id {
75         unsigned long driver_data;      /* data private to the driver */
76         unsigned short card_vendor, card_device;
77         struct {
78                 unsigned short vendor, function;
79         } devs[ISAPNP_CARD_DEVS];       /* logical devices */
80 };
81
82 #define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
83                 .card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device =  ISAPNP_DEVICE(_cdevice), \
84                 .vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
85 #define ISAPNP_DEVICE_SINGLE_END \
86                 .card_vendor = 0, .card_device = 0
87
88 struct isapnp_device_id {
89         unsigned short card_vendor, card_device;
90         unsigned short vendor, function;
91         unsigned long driver_data;      /* data private to the driver */
92 };
93
94 #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
95
96 #define __ISAPNP__
97
98 /* lowlevel configuration */
99 int isapnp_present(void);
100 int isapnp_cfg_begin(int csn, int device);
101 int isapnp_cfg_end(void);
102 unsigned char isapnp_read_byte(unsigned char idx);
103 void isapnp_write_byte(unsigned char idx, unsigned char val);
104
105 #ifdef CONFIG_PROC_FS
106 int isapnp_proc_init(void);
107 int isapnp_proc_done(void);
108 #else
109 static inline int isapnp_proc_init(void) { return 0; }
110 static inline int isapnp_proc_done(void) { return 0; }
111 #endif
112
113 /* compat */
114 struct pnp_card *pnp_find_card(unsigned short vendor,
115                                unsigned short device,
116                                struct pnp_card *from);
117 struct pnp_dev *pnp_find_dev(struct pnp_card *card,
118                              unsigned short vendor,
119                              unsigned short function,
120                              struct pnp_dev *from);
121
122 #else /* !CONFIG_ISAPNP */
123
124 /* lowlevel configuration */
125 static inline int isapnp_present(void) { return 0; }
126 static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
127 static inline int isapnp_cfg_end(void) { return -ENODEV; }
128 static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
129 static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
130
131 static inline struct pnp_card *pnp_find_card(unsigned short vendor,
132                                              unsigned short device,
133                                              struct pnp_card *from) { return NULL; }
134 static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card,
135                                            unsigned short vendor,
136                                            unsigned short function,
137                                            struct pnp_dev *from) { return NULL; }
138
139 #endif /* CONFIG_ISAPNP */
140
141 #endif /* __KERNEL__ */
142 #endif /* LINUX_ISAPNP_H */