[mirror_ubuntu-bionic-kernel.git] / include / linux / isapnp.h

/*
 *  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/errno.h>
#include <linux/pnp.h>

/*
 *
 */

#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__
#include <linux/mod_devicetable.h>

#define DEVICE_COUNT_COMPATIBLE 4

#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) }

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

#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 */
Commit	Line	Data
1da177e4 LT	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
1da177e4 LT	25	#include <linux/errno.h>
	26	#include <linux/pnp.h>
	27
1da177e4 LT	28	/*
	29	*
	30	*/
	31
	32	#define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)\|\
	33	((((b)-'A'+1)&0x18)>>3)\|((((b)-'A'+1)&7)<<13)\|\
	34	((((c)-'A'+1)&0x1f)<<8))
	35	#define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)\|\
	36	(((x)&0x0f00)>>8)\|\
	37	(((x)&0x00f0)<<8)\|\
	38	(((x)&0x000f)<<8))
	39	#define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
	40
	41	/*
	42	*
	43	*/
	44
	45	#ifdef __KERNEL__
90def62d	46	#include <linux/mod_devicetable.h>
1da177e4 LT	47
	48	#define DEVICE_COUNT_COMPATIBLE 4
	49
1da177e4 LT	50	#define ISAPNP_CARD_DEVS 8
	51
	52	#define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
	53	.card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
	54	#define ISAPNP_CARD_END \
	55	.card_vendor = 0, .card_device = 0
	56	#define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
	57	{ .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
	58
1da177e4 LT	59	struct isapnp_card_id {
	60	unsigned long driver_data; /* data private to the driver */
	61	unsigned short card_vendor, card_device;
	62	struct {
	63	unsigned short vendor, function;
	64	} devs[ISAPNP_CARD_DEVS]; /* logical devices */
	65	};
	66
	67	#define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
	68	.card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice), \
	69	.vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
	70	#define ISAPNP_DEVICE_SINGLE_END \
	71	.card_vendor = 0, .card_device = 0
	72
1da177e4 LT	73	#if defined(CONFIG_ISAPNP) \|\| (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
	74
	75	#define __ISAPNP__
	76
	77	/* lowlevel configuration */
	78	int isapnp_present(void);
	79	int isapnp_cfg_begin(int csn, int device);
	80	int isapnp_cfg_end(void);
	81	unsigned char isapnp_read_byte(unsigned char idx);
	82	void isapnp_write_byte(unsigned char idx, unsigned char val);
	83
	84	#ifdef CONFIG_PROC_FS
	85	int isapnp_proc_init(void);
	86	int isapnp_proc_done(void);
	87	#else
	88	static inline int isapnp_proc_init(void) { return 0; }
	89	static inline int isapnp_proc_done(void) { return 0; }
	90	#endif
	91
	92	/* compat */
	93	struct pnp_card *pnp_find_card(unsigned short vendor,
	94	unsigned short device,
	95	struct pnp_card *from);
	96	struct pnp_dev pnp_find_dev(struct pnp_card card,
	97	unsigned short vendor,
	98	unsigned short function,
	99	struct pnp_dev *from);
	100
	101	#else /* !CONFIG_ISAPNP */
	102
	103	/* lowlevel configuration */
	104	static inline int isapnp_present(void) { return 0; }
	105	static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
	106	static inline int isapnp_cfg_end(void) { return -ENODEV; }
	107	static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
	108	static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
	109
	110	static inline struct pnp_card *pnp_find_card(unsigned short vendor,
	111	unsigned short device,
	112	struct pnp_card *from) { return NULL; }
	113	static inline struct pnp_dev pnp_find_dev(struct pnp_card card,
	114	unsigned short vendor,
	115	unsigned short function,
	116	struct pnp_dev *from) { return NULL; }
	117
	118	#endif /* CONFIG_ISAPNP */
	119
	120	#endif /* __KERNEL__ */
	121	#endif /* LINUX_ISAPNP_H */