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