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/errno.h> 26 #include <linux/pnp.h> 27 28 /* 29 * Configuration registers (TODO: change by specification) 30 */ 31 32 #define ISAPNP_CFG_ACTIVATE 0x30 /* byte */ 33 #define ISAPNP_CFG_MEM 0x40 /* 4 * dword */ 34 #define ISAPNP_CFG_PORT 0x60 /* 8 * word */ 35 #define ISAPNP_CFG_IRQ 0x70 /* 2 * word */ 36 #define ISAPNP_CFG_DMA 0x74 /* 2 * byte */ 37 38 /* 39 * 40 */ 41 42 #define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\ 43 ((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\ 44 ((((c)-'A'+1)&0x1f)<<8)) 45 #define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|\ 46 (((x)&0x0f00)>>8)|\ 47 (((x)&0x00f0)<<8)|\ 48 (((x)&0x000f)<<8)) 49 #define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x) 50 51 /* 52 * 53 */ 54 55 #ifdef __KERNEL__ 56 57 #define DEVICE_COUNT_COMPATIBLE 4 58 59 #define ISAPNP_ANY_ID 0xffff 60 #define ISAPNP_CARD_DEVS 8 61 62 #define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \ 63 .card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device) 64 #define ISAPNP_CARD_END \ 65 .card_vendor = 0, .card_device = 0 66 #define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \ 67 { .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) } 68 69 /* export used IDs outside module */ 70 #define ISAPNP_CARD_TABLE(name) \ 71 MODULE_GENERIC_TABLE(isapnp_card, name) 72 73 struct isapnp_card_id { 74 unsigned long driver_data; /* data private to the driver */ 75 unsigned short card_vendor, card_device; 76 struct { 77 unsigned short vendor, function; 78 } devs[ISAPNP_CARD_DEVS]; /* logical devices */ 79 }; 80 81 #define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \ 82 .card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice), \ 83 .vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction) 84 #define ISAPNP_DEVICE_SINGLE_END \ 85 .card_vendor = 0, .card_device = 0 86 87 struct isapnp_device_id { 88 unsigned short card_vendor, card_device; 89 unsigned short vendor, function; 90 unsigned long driver_data; /* data private to the driver */ 91 }; 92 93 #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE)) 94 95 #define __ISAPNP__ 96 97 /* lowlevel configuration */ 98 int isapnp_present(void); 99 int isapnp_cfg_begin(int csn, int device); 100 int isapnp_cfg_end(void); 101 unsigned char isapnp_read_byte(unsigned char idx); 102 void isapnp_write_byte(unsigned char idx, unsigned char val); 103 104 #ifdef CONFIG_PROC_FS 105 int isapnp_proc_init(void); 106 int isapnp_proc_done(void); 107 #else 108 static inline int isapnp_proc_init(void) { return 0; } 109 static inline int isapnp_proc_done(void) { return 0; } 110 #endif 111 112 /* compat */ 113 struct pnp_card *pnp_find_card(unsigned short vendor, 114 unsigned short device, 115 struct pnp_card *from); 116 struct pnp_dev *pnp_find_dev(struct pnp_card *card, 117 unsigned short vendor, 118 unsigned short function, 119 struct pnp_dev *from); 120 121 #else /* !CONFIG_ISAPNP */ 122 123 /* lowlevel configuration */ 124 static inline int isapnp_present(void) { return 0; } 125 static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; } 126 static inline int isapnp_cfg_end(void) { return -ENODEV; } 127 static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; } 128 static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; } 129 130 static inline struct pnp_card *pnp_find_card(unsigned short vendor, 131 unsigned short device, 132 struct pnp_card *from) { return NULL; } 133 static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card, 134 unsigned short vendor, 135 unsigned short function, 136 struct pnp_dev *from) { return NULL; } 137 138 #endif /* CONFIG_ISAPNP */ 139 140 #endif /* __KERNEL__ */ 141 #endif /* LINUX_ISAPNP_H */ 142