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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/isapnp.h
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 void isapnp_write_byte(unsigned char idx
, unsigned char val
);
105 #ifdef CONFIG_PROC_FS
106 int isapnp_proc_init(void);
107 int isapnp_proc_done(void);
109 static inline int isapnp_proc_init(void) { return 0; }
110 static inline int isapnp_proc_done(void) { return 0; }
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
);
122 #else /* !CONFIG_ISAPNP */
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
) { ; }
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
; }
139 #endif /* CONFIG_ISAPNP */
141 #endif /* __KERNEL__ */
142 #endif /* LINUX_ISAPNP_H */