isapnp.h
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上传日期:2009-04-28
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- /*
- * ISA Plug & Play support
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
- #ifndef LINUX_ISAPNP_H
- #define LINUX_ISAPNP_H
- #include <linux/config.h>
- #include <linux/errno.h>
- #include <linux/pnp.h>
- /*
- * Configuration registers (TODO: change by specification)
- */
- #define ISAPNP_CFG_ACTIVATE 0x30 /* byte */
- #define ISAPNP_CFG_MEM 0x40 /* 4 * dword */
- #define ISAPNP_CFG_PORT 0x60 /* 8 * word */
- #define ISAPNP_CFG_IRQ 0x70 /* 2 * word */
- #define ISAPNP_CFG_DMA 0x74 /* 2 * byte */
- /*
- *
- */
- #define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|
- ((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|
- ((((c)-'A'+1)&0x1f)<<8))
- #define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|
- (((x)&0x0f00)>>8)|
- (((x)&0x00f0)<<8)|
- (((x)&0x000f)<<8))
- #define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
- /*
- *
- */
- #ifdef __KERNEL__
- #define DEVICE_COUNT_COMPATIBLE 4
- #define ISAPNP_ANY_ID 0xffff
- #define ISAPNP_CARD_DEVS 8
- #define ISAPNP_CARD_ID(_va, _vb, _vc, _device)
- .card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
- #define ISAPNP_CARD_END
- .card_vendor = 0, .card_device = 0
- #define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function)
- { .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
- /* export used IDs outside module */
- #define ISAPNP_CARD_TABLE(name)
- MODULE_GENERIC_TABLE(isapnp_card, name)
- struct isapnp_card_id {
- unsigned long driver_data; /* data private to the driver */
- unsigned short card_vendor, card_device;
- struct {
- unsigned short vendor, function;
- } devs[ISAPNP_CARD_DEVS]; /* logical devices */
- };
- #define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction)
- .card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice),
- .vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
- #define ISAPNP_DEVICE_SINGLE_END
- .card_vendor = 0, .card_device = 0
- struct isapnp_device_id {
- unsigned short card_vendor, card_device;
- unsigned short vendor, function;
- unsigned long driver_data; /* data private to the driver */
- };
- #if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
- #define __ISAPNP__
- /* lowlevel configuration */
- int isapnp_present(void);
- int isapnp_cfg_begin(int csn, int device);
- int isapnp_cfg_end(void);
- unsigned char isapnp_read_byte(unsigned char idx);
- void isapnp_write_byte(unsigned char idx, unsigned char val);
- #ifdef CONFIG_PROC_FS
- int isapnp_proc_init(void);
- int isapnp_proc_done(void);
- #else
- static inline int isapnp_proc_init(void) { return 0; }
- static inline int isapnp_proc_done(void) { return 0; }
- #endif
- /* compat */
- struct pnp_card *pnp_find_card(unsigned short vendor,
- unsigned short device,
- struct pnp_card *from);
- struct pnp_dev *pnp_find_dev(struct pnp_card *card,
- unsigned short vendor,
- unsigned short function,
- struct pnp_dev *from);
- #else /* !CONFIG_ISAPNP */
- /* lowlevel configuration */
- static inline int isapnp_present(void) { return 0; }
- static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
- static inline int isapnp_cfg_end(void) { return -ENODEV; }
- static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
- static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
- static inline struct pnp_card *pnp_find_card(unsigned short vendor,
- unsigned short device,
- struct pnp_card *from) { return NULL; }
- static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card,
- unsigned short vendor,
- unsigned short function,
- struct pnp_dev *from) { return NULL; }
- #endif /* CONFIG_ISAPNP */
- #endif /* __KERNEL__ */
- #endif /* LINUX_ISAPNP_H */