Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 */ |