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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/errno.h> |
26 | #include <linux/pnp.h> |
27 | |
28 | /* |
29 | * |
30 | */ |
31 | |
32 | #define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\ |
33 | ((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\ |
34 | ((((c)-'A'+1)&0x1f)<<8)) |
35 | #define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|\ |
36 | (((x)&0x0f00)>>8)|\ |
37 | (((x)&0x00f0)<<8)|\ |
38 | (((x)&0x000f)<<8)) |
39 | #define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x) |
40 | |
41 | /* |
42 | * |
43 | */ |
44 | |
45 | #ifdef __KERNEL__ |
46 | #include <linux/mod_devicetable.h> |
47 | |
48 | #define DEVICE_COUNT_COMPATIBLE 4 |
49 | |
50 | #define ISAPNP_CARD_DEVS 8 |
51 | |
52 | #define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \ |
53 | .card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device) |
54 | #define ISAPNP_CARD_END \ |
55 | .card_vendor = 0, .card_device = 0 |
56 | #define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \ |
57 | { .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) } |
58 | |
59 | /* export used IDs outside module */ |
60 | #define ISAPNP_CARD_TABLE(name) \ |
61 | MODULE_GENERIC_TABLE(isapnp_card, name) |
62 | |
63 | struct isapnp_card_id { |
64 | unsigned long driver_data; /* data private to the driver */ |
65 | unsigned short card_vendor, card_device; |
66 | struct { |
67 | unsigned short vendor, function; |
68 | } devs[ISAPNP_CARD_DEVS]; /* logical devices */ |
69 | }; |
70 | |
71 | #define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \ |
72 | .card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice), \ |
73 | .vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction) |
74 | #define ISAPNP_DEVICE_SINGLE_END \ |
75 | .card_vendor = 0, .card_device = 0 |
76 | |
77 | #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE)) |
78 | |
79 | #define __ISAPNP__ |
80 | |
81 | /* lowlevel configuration */ |
82 | int isapnp_present(void); |
83 | int isapnp_cfg_begin(int csn, int device); |
84 | int isapnp_cfg_end(void); |
85 | unsigned char isapnp_read_byte(unsigned char idx); |
86 | void isapnp_write_byte(unsigned char idx, unsigned char val); |
87 | |
88 | #ifdef CONFIG_PROC_FS |
89 | int isapnp_proc_init(void); |
90 | int isapnp_proc_done(void); |
91 | #else |
92 | static inline int isapnp_proc_init(void) { return 0; } |
93 | static inline int isapnp_proc_done(void) { return 0; } |
94 | #endif |
95 | |
96 | /* compat */ |
97 | struct pnp_card *pnp_find_card(unsigned short vendor, |
98 | unsigned short device, |
99 | struct pnp_card *from); |
100 | struct pnp_dev *pnp_find_dev(struct pnp_card *card, |
101 | unsigned short vendor, |
102 | unsigned short function, |
103 | struct pnp_dev *from); |
104 | |
105 | #else /* !CONFIG_ISAPNP */ |
106 | |
107 | /* lowlevel configuration */ |
108 | static inline int isapnp_present(void) { return 0; } |
109 | static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; } |
110 | static inline int isapnp_cfg_end(void) { return -ENODEV; } |
111 | static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; } |
112 | static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; } |
113 | |
114 | static inline struct pnp_card *pnp_find_card(unsigned short vendor, |
115 | unsigned short device, |
116 | struct pnp_card *from) { return NULL; } |
117 | static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card, |
118 | unsigned short vendor, |
119 | unsigned short function, |
120 | struct pnp_dev *from) { return NULL; } |
121 | |
122 | #endif /* CONFIG_ISAPNP */ |
123 | |
124 | #endif /* __KERNEL__ */ |
125 | #endif /* LINUX_ISAPNP_H */ |
126 |
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