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1da177e4 LT |
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 */ |