2 * ISA Plug & Play support
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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.
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.
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.
22 #ifndef LINUX_ISAPNP_H
23 #define LINUX_ISAPNP_H
25 #include <linux/config.h>
26 #include <linux/errno.h>
27 #include <linux/pnp.h>
30 * Configuration registers (TODO: change by specification)
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 */
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)|\
50 #define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
58 #define DEVICE_COUNT_COMPATIBLE 4
60 #define ISAPNP_ANY_ID 0xffff
61 #define ISAPNP_CARD_DEVS 8
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) }
70 /* export used IDs outside module */
71 #define ISAPNP_CARD_TABLE(name) \
72 MODULE_GENERIC_TABLE(isapnp_card, name)
74 struct isapnp_card_id
{
75 unsigned long driver_data
; /* data private to the driver */
76 unsigned short card_vendor
, card_device
;
78 unsigned short vendor
, function
;
79 } devs
[ISAPNP_CARD_DEVS
]; /* logical devices */
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
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 */
94 #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
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 unsigned short isapnp_read_word(unsigned char idx
);
104 unsigned int isapnp_read_dword(unsigned char idx
);
105 void isapnp_write_byte(unsigned char idx
, unsigned char val
);
106 void isapnp_write_word(unsigned char idx
, unsigned short val
);
107 void isapnp_write_dword(unsigned char idx
, unsigned int val
);
108 void isapnp_wake(unsigned char csn
);
109 void isapnp_device(unsigned char device
);
110 void isapnp_activate(unsigned char device
);
111 void isapnp_deactivate(unsigned char device
);
112 void *isapnp_alloc(long size
);
114 #ifdef CONFIG_PROC_FS
115 int isapnp_proc_init(void);
116 int isapnp_proc_done(void);
118 static inline int isapnp_proc_init(void) { return 0; }
119 static inline int isapnp_proc_done(void) { return 0; }
123 int isapnp_init(void);
126 struct pnp_card
*pnp_find_card(unsigned short vendor
,
127 unsigned short device
,
128 struct pnp_card
*from
);
129 struct pnp_dev
*pnp_find_dev(struct pnp_card
*card
,
130 unsigned short vendor
,
131 unsigned short function
,
132 struct pnp_dev
*from
);
134 #else /* !CONFIG_ISAPNP */
136 /* lowlevel configuration */
137 static inline int isapnp_present(void) { return 0; }
138 static inline int isapnp_cfg_begin(int csn
, int device
) { return -ENODEV
; }
139 static inline int isapnp_cfg_end(void) { return -ENODEV
; }
140 static inline unsigned char isapnp_read_byte(unsigned char idx
) { return 0xff; }
141 static inline unsigned short isapnp_read_word(unsigned char idx
) { return 0xffff; }
142 static inline unsigned int isapnp_read_dword(unsigned char idx
) { return 0xffffffff; }
143 static inline void isapnp_write_byte(unsigned char idx
, unsigned char val
) { ; }
144 static inline void isapnp_write_word(unsigned char idx
, unsigned short val
) { ; }
145 static inline void isapnp_write_dword(unsigned char idx
, unsigned int val
) { ; }
146 static inline void isapnp_wake(unsigned char csn
) { ; }
147 static inline void isapnp_device(unsigned char device
) { ; }
148 static inline void isapnp_activate(unsigned char device
) { ; }
149 static inline void isapnp_deactivate(unsigned char device
) { ; }
151 static inline struct pnp_card
*pnp_find_card(unsigned short vendor
,
152 unsigned short device
,
153 struct pnp_card
*from
) { return NULL
; }
154 static inline struct pnp_dev
*pnp_find_dev(struct pnp_card
*card
,
155 unsigned short vendor
,
156 unsigned short function
,
157 struct pnp_dev
*from
) { return NULL
; }
159 #endif /* CONFIG_ISAPNP */
161 #endif /* __KERNEL__ */
162 #endif /* LINUX_ISAPNP_H */